CN101776344A

CN101776344A - Heat regenerative generation-absorption system and second-kind absorption heat pump based on same

Info

Publication number: CN101776344A
Application number: CN201010003274A
Authority: CN
Inventors: 李华玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-10
Filing date: 2010-01-10
Publication date: 2010-07-14
Anticipated expiration: 2030-01-10
Also published as: CN101464068A; CN101776344B

Abstract

The invention discloses a heat regenerative generation-absorption system and a second-kind absorption heat pump based on the same, belonging to the technical field of heat pumps. Aiming at the generation-absorption system consisting of a first generator and a first absorber, a second absorber, a second generator, an intermediate heat exchanger, a second solution heat exchanger, a second solution pump or/and a third solution pump are introduced; or the first generator which is originally communicated with the absorbers through the solution pumps and the solution heat exchanger is changed to be communicated with the second generator, the second generator is communicated with the second absorber, and the second absorber is also communicated with the first absorber, or the second generator is communicated with the second absorber through the second solution pump, and the second absorber is also communicated with the second generator; the intermediate heat exchanger is communicated with the first absorber and the second generator, the second absorber is provided with a refrigerant steam pipeline and a heated medium pipeline which are respectively communicated with the outside, and the second generator is provided with a refrigerant steam pipeline which is communicated with the outside; the heat discharged by the refrigerant steam absorbed by the first absorber is supplied for driving the second generator, and a concentrated solution enters the second absorber to absorb high-temperature heat discharged by the refrigerant steam; and the second-kind absorption heat pump with a high-temperature heat supplying end is formed by combining other components.

Description

Back-heating type generation-absorption system and base second class absorption heat pump thereon

Technical field:

The invention belongs to low temperature exhaust heat utilization and technical field of heat pumps.

Background technology:

Adopt the absorption heat pump technology to carry out UTILIZATION OF VESIDUAL HEAT IN and have reasonable energy-saving and environmental protection and economic benefit, its prerequisite is that heat pump can rise to heat more than the level of user's request from waste heat supply temperature.Improve the range of application of heat pump techniques, the residual heat resources of low temperature are the main directions that people make great efforts to the heat supply temperature of lifting heat pump with utilizing more.

For heat supply temperature and the performance index that makes absorption heat pump is improved, people had obtained the unit of different effect numbers and different progression before this by research, adopt to increase heat supply end, increase that methods such as heat supply flow process carry out different heat pump flowsheets compoundly obtain more careful effect number and progression, their correspondences corresponding performance index.

From the unit internal process, the key that improves the second class absorption heat pump heat supply temperature is to improve the solution concentration of absorber outlet, just will improve the solution concentration of generator exports.The backheat principle is applied to the generation-absorption process of solution, and combines, can improve the heat supply temperature of corresponding unit with the source pump of different effect numbers, different progression; Simultaneously, realizing the two ends or the multiterminal heat supply of second class absorption heat pump, is useful for the performance index that improves the level group.

Summary of the invention:

Main purpose of the present invention is back-heating type generation-absorption system will be provided and based on second class absorption heat pump of back-heating type generation-absorption system, comprise that solution series loops back hot type generation-absorption system, solution independent loops back-heating type generation-absorption system and multiple second class absorption heat pump based on back-heating type generation-absorption system.Concrete summary of the invention is as follows:

1. solution series loops back hot type generation-absorption system, mainly is made up of first generator, first absorber, second absorber, second generator, intermediate heat exchanger, first solution pump, second solution pump, the 3rd solution pump, first solution heat exchanger and second solution heat exchanger; There is the solution pipeline to be communicated with first absorber at what be applied to second class absorption heat pump by first generator through first solution pump and first solution heat exchanger, first absorber also has the solution pipeline to be communicated with first generator through first solution heat exchanger, also have surplus heat respectively medium or drive thermal medium pipeline and external communications and refrigerant vapour passage and external communications are arranged of first generator, first absorber also has heated medium pipeline and external communications respectively and refrigerant vapour passage and the formed generation-absorption system of external communications is arranged, introduce second generator, second absorber, intermediate heat exchanger, second solution pump, the 3rd solution pump and second solution heat exchanger, first generator there is the solution pipeline through first solution pump, first solution heat exchanger is communicated with first absorber and changes first generator into and the solution pipeline is arranged through first solution pump, first solution heat exchanger is communicated with second generator, establish the solution pipeline through second solution pump by second generator again, second solution heat exchanger is communicated with second absorber, second absorber has the solution pipeline again through second solution heat exchanger, the 3rd solution pump is communicated with absorber, intermediate heat exchanger is communicated with second generator and first absorber, second absorber also has refrigerant vapour passage and external communications respectively and has heated medium pipeline and external communications, second generator to also have the refrigerant vapour passage with outside; The weak solution that waste heat medium or driving thermal medium heat first generator discharges refrigerant vapour, the concentrated solution of first generator enters second generator, first absorber absorbs that a refrigerant vapour liberated heat part is used to satisfy the low temperature heat demand of heated medium and another part discharges refrigerant vapour through the intermediate heat exchanger heating from the solution that first generator enters second generator, and the concentrated solution of second generator enters second absorber, absorb refrigerant vapour emits the elevated temperature heat demand that heat is used to satisfy heated medium; When selecting first absorber not have heated medium pipeline and external communications, the heat that first absorber absorption refrigerant vapour is emitted only is used as the driving heat of second generator.

2. solution independent loops back-heating type generation-absorption system mainly is made up of first generator, first absorber, second absorber, second generator, intermediate heat exchanger, first solution pump, second solution pump, first solution heat exchanger and second solution heat exchanger; There is the solution pipeline to be communicated with first absorber at what be applied to second class absorption heat pump by first generator through first solution pump and first solution heat exchanger, first absorber also has the solution pipeline to be communicated with first generator through first solution heat exchanger, also have surplus heat respectively medium or drive thermal medium pipeline and external communications and have the refrigerant vapour passage to be communicated with of first generator with condensate component, first absorber also has heated medium pipeline and external communications respectively and has the refrigerant vapour passage to be communicated with formed generation-absorption system with the refrigerant vapour production part, introduce second generator, second absorber, intermediate heat exchanger, second solution pump and second solution heat exchanger, second generator has the solution pipeline to be communicated with second absorber through second solution pump and second solution heat exchanger, second absorber also has the solution pipeline to be communicated with second generator through second solution heat exchanger, intermediate heat exchanger is communicated with second generator and first absorber, second absorber also has refrigerant vapour passage and external communications respectively and has heated medium pipeline and external communications, second generator to also have the refrigerant vapour passage with outside; The waste heat medium or drive weak solution that thermal medium heats first generator and discharge refrigerant vapour after concentrated solution enter first absorber, first absorber absorbs that a refrigerant vapour liberated heat part is used to satisfy the low temperature heat demand of heated medium and another part discharges refrigerant vapour through the intermediate heat exchanger heating from the solution that second absorber enters second generator, and concentrated solution enters second absorber and absorbs refrigerant vapour and emit the elevated temperature heat demand that heat is used to satisfy heated medium; When selecting first absorber not have heated medium pipeline and external communications, the heat that first absorber absorption refrigerant vapour is emitted only is used as the driving heat of second generator.

3. based on single-stage single-action second class absorption heat pump of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, with the waste heat medium is the driving thermal medium of first generator, increase condenser, evaporimeter and cryogen liquid pump, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the cryogen liquid pump, having refrigerant vapour passage and external communications to be adjusted into evaporimeter first absorber has the refrigerant vapour passage to be communicated with first absorber, having refrigerant vapour passage and external communications to be adjusted into evaporimeter second absorber has the refrigerant vapour passage to be communicated with first absorber, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

4. based on one generator type two-stage second class absorption heat pump of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, with the waste heat medium is the driving thermal medium of generator, increase condenser, evaporimeter, absorption-evaporimeter, the cryogen liquid pump, choke valve and the 3rd solution heat exchanger, first absorber is communicated with first generator through first solution heat exchanger to be changed first absorber into and has the solution pipeline to be communicated with absorption-evaporimeter through the 3rd solution heat exchanger, absorption-evaporimeter has the solution pipeline to be communicated with generator through first solution heat exchanger again, first generator there is the solution pipeline through first solution pump, first solution heat exchanger is communicated with second generator or first absorber and changes first generator into and the solution pipeline is arranged through first solution pump, be communicated with second generator or first absorber through the 3rd solution heat exchanger again behind first solution heat exchanger, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into condenser respectively first absorber and second absorber has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber and second absorber more respectively with absorption-evaporimeter after absorption-evaporimeter is communicated with through the cryogen liquid pump, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through choke valve behind the cryogen liquid pump again, evaporimeter also has the refrigerant vapour passage to be communicated with absorption-evaporimeter, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

5. based on one generator type two-stage second class absorption heat pump of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, with the waste heat medium is the driving thermal medium of generator, increase condenser, evaporimeter, absorption-evaporimeter, the first cryogen liquid pump, the 3rd solution heat exchanger and the second cryogen liquid pump, first absorber is communicated with first generator through first solution heat exchanger to be changed first absorber into and has the solution pipeline to be communicated with absorption-evaporimeter through the 3rd solution heat exchanger, absorption-evaporimeter has the solution pipeline to be communicated with generator through first solution heat exchanger again, first generator there is the solution pipeline through first solution pump, first solution heat exchanger is communicated with second generator or first absorber and changes first generator into and the solution pipeline is arranged through first solution pump, be communicated with second generator or first absorber through the 3rd solution heat exchanger again behind first solution heat exchanger, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into evaporimeter respectively first absorber and second absorber has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber and second absorber more respectively with absorption-evaporimeter after absorption-evaporimeter is communicated with through the second cryogen liquid pump, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the first cryogen liquid pump, evaporimeter also has the refrigerant vapour passage to be communicated with absorption-evaporimeter, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

6. based on three grade of second class absorption heat pump of one generator type of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, increase condenser, evaporimeter, one-level absorption-evaporimeter, secondary absorption-evaporimeter, the cryogen liquid pump, the first throttle valve, second choke valve, the 3rd solution heat exchanger and the 4th solution heat exchanger, having the solution pipeline to change first absorber into through first solution heat exchanger connection generator first absorber has the solution pipeline to be communicated with secondary absorption-evaporimeter through the 3rd solution heat exchanger, secondary absorption-evaporimeter also has the solution pipeline to have the solution pipeline to be communicated with generator through first solution heat exchanger through the 4th solution heat exchanger again with one-level absorption-evaporimeter connected sum one-level absorption-evaporimeter, again first generator there is the solution pipeline through first solution pump, first solution heat exchanger is communicated with second generator or first absorber and changes first generator into and the solution pipeline is arranged through first solution pump, behind first solution heat exchanger again through the 4th solution heat exchanger, the 3rd solution heat exchanger is communicated with second generator or first absorber, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into condenser respectively first absorber and second absorber has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber and second absorber more respectively with secondary absorption-evaporimeter after secondary absorption-evaporimeter is communicated with through the cryogen liquid pump, condenser also has the cryogen liquid pipeline through having the refrigerant vapour passage to be communicated with secondary absorption-evaporimeter through second choke valve again with one-level absorption-evaporimeter after one-level absorption-evaporimeter is communicated with again through first throttle valve and evaporimeter connected sum more respectively behind the cryogen liquid pump, evaporimeter also has the refrigerant vapour passage to be communicated with one-level absorption-evaporimeter, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

7. based on three grade of second class absorption heat pump of one generator type of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, increase condenser, evaporimeter, one-level absorption-evaporimeter, secondary absorption-evaporimeter, the first cryogen liquid pump, the second cryogen liquid pump, the 3rd cryogen liquid pump, the 3rd solution heat exchanger and the 4th solution heat exchanger, having the solution pipeline to change first absorber into through first solution heat exchanger connection generator first absorber has the solution pipeline to be communicated with secondary absorption-evaporimeter through the 3rd solution heat exchanger, secondary absorption-evaporimeter also has the solution pipeline to have the solution pipeline to be communicated with generator through first solution heat exchanger through the 4th solution heat exchanger again with one-level absorption-evaporimeter connected sum one-level absorption-evaporimeter, again first generator there is the solution pipeline through first solution pump, first solution heat exchanger is communicated with second generator or first absorber and changes first generator into and the solution pipeline is arranged through first solution pump, behind first solution heat exchanger again through the 4th solution heat exchanger, the 3rd solution heat exchanger is communicated with second generator or first absorber, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, there are refrigerant vapour passage and external communications to be adjusted into evaporimeter respectively first absorber and second absorber and the cryogen liquid pipeline arranged through the second cryogen liquid pump, there is the refrigerant vapour passage to be communicated with through the 3rd cryogen liquid pump more respectively with secondary absorption-evaporimeter after secondary absorption-evaporimeter is communicated with again with first absorber and second absorber, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the first cryogen liquid pump, evaporimeter also has the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with secondary absorption-evaporimeter through the second cryogen liquid pump again with one-level absorption-evaporimeter after one-level absorption-evaporimeter is communicated with, evaporimeter also has the refrigerant vapour passage to be communicated with one-level absorption-evaporimeter, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

8. based on dual occurrence type two-stage second class absorption heat pump of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, increase condenser, evaporimeter, absorption-evaporimeter, the cryogen liquid pump, the first throttle valve, cryogenerator, the 4th solution pump, second choke valve and the 3rd solution heat exchanger, having the solution pipeline to be communicated with first generator through first solution heat exchanger first absorber changes first absorber into and has the solution pipeline to be communicated with absorption-evaporimeter through first solution heat exchanger, absorption-evaporimeter has the solution pipeline to also have the solution pipeline through the 4th solution pump through the 3rd solution heat exchanger connection cryogenerator and cryogenerator again, the 3rd solution heat exchanger is communicated with first generator, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, first absorber and second absorber there are refrigerant vapour passage and external communications respectively, first generator has and drives thermal medium pipeline and external communications and be adjusted into condenser and have the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with first absorber respectively through the cryogen liquid pump again with absorption-evaporimeter after absorption-evaporimeter is communicated with, being communicated with back first generator with first generator with the second absorber connected sum has the cryogen liquid pipeline to be communicated with condenser through the first throttle valve again, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through second choke valve behind the cryogen liquid pump again, evaporimeter also has the refrigerant vapour passage to be communicated with absorption-evaporimeter, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

9. based on dual occurrence type two-stage second class absorption heat pump of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, increase condenser, evaporimeter, absorption-evaporimeter, the first cryogen liquid pump, choke valve, cryogenerator, the 4th solution pump, the 3rd solution heat exchanger and the second cryogen liquid pump, having the solution pipeline to be communicated with first generator through first solution heat exchanger first absorber changes first absorber into and has the solution pipeline to be communicated with absorption-evaporimeter through first solution heat exchanger, absorption-evaporimeter has the solution pipeline to also have the solution pipeline through the 4th solution pump through the 3rd solution heat exchanger connection cryogenerator and cryogenerator again, the 3rd solution heat exchanger is communicated with first generator, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, first absorber and second absorber there are refrigerant vapour passage and external communications respectively, first generator has and drives thermal medium pipeline and external communications and be adjusted into evaporimeter and have the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with first absorber respectively through the second cryogen liquid pump again with absorption-evaporimeter after absorption-evaporimeter is communicated with, being communicated with back first generator with first generator with the second absorber connected sum has the cryogen liquid pipeline to be communicated with condenser through choke valve again, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the first cryogen liquid pump, evaporimeter also has the refrigerant vapour passage to be communicated with absorption-evaporimeter, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

10. based on series circulation single-stage economic benefits and social benefits second class absorption heat pump of back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, increase by the 3rd generator, condenser, evaporimeter, the 4th solution pump, choke valve and cryogen liquid pump, having the solution pipeline to be communicated with first generator through first solution heat exchanger first absorber changes first absorber into and has the solution pipeline to be communicated with the 3rd generator through first solution heat exchanger, the 3rd generator has the solution pipeline to be communicated with first generator through the 4th solution pump again, with first generator have refrigerant vapour passage and external communications be adjusted into first generator have the refrigerant vapour passage be communicated with the 3rd generator the back the 3rd generator have the cryogen liquid pipeline to be communicated with condenser again through choke valve, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into evaporimeter respectively first absorber and second absorber has the refrigerant vapour passage to be communicated with first absorber and second absorber respectively, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the cryogen liquid pump, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

11. series circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system, be in the above in the 1st described back-heating type generation-absorption system, increase by the 3rd generator, condenser, evaporimeter, the 4th solution pump, choke valve, cryogen liquid pump and solution pump, having the solution pipeline to be communicated with first generator through first solution heat exchanger first absorber changes first absorber into and has the solution pipeline to be communicated with the 3rd generator through first solution heat exchanger, the 3rd generator has the solution pipeline to be communicated with first generator through the 4th solution pump again, first generator there is the solution pipeline through first solution pump, first solution heat exchanger is communicated with second generator and is adjusted into first generator and the solution pipeline is arranged through first solution pump, first solution heat exchanger is communicated with first absorber, setting up the solution pipeline by the 3rd generator is communicated with second generator through the 5th solution pump, with first generator have refrigerant vapour passage and external communications be adjusted into first generator have the refrigerant vapour passage be communicated with the 3rd generator the back the 3rd generator have the cryogen liquid pipeline to be communicated with condenser again through choke valve, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into evaporimeter respectively first absorber and second absorber has the refrigerant vapour passage to be communicated with first absorber and second absorber respectively, condenser also has the cryogen liquid pipeline to be communicated with evaporimeter through the cryogen liquid pump, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

12. series circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, increase by the 3rd generator, condenser, evaporimeter, choke valve, cryogen liquid pump and the 3rd solution heat exchanger, first generator there is the solution pipeline through first solution pump, first solution heat exchanger is communicated with second generator or first absorber and is adjusted into first generator and has the solution pipeline to be communicated with the 3rd generator through the 3rd solution heat exchanger, the 3rd generator has the solution pipeline again through first solution pump, the 3rd solution heat exchanger and first solution heat exchanger are communicated with second generator or first absorber, with first generator have refrigerant vapour passage and external communications be adjusted into first generator have the refrigerant vapour passage be communicated with the 3rd generator the back the 3rd generator have the cryogen liquid pipeline to be communicated with condenser again through choke valve, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into evaporimeter respectively first absorber and second absorber has the refrigerant vapour passage to be communicated with first absorber and second absorber respectively, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

13. parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system, be in the above in the 1st or the 2nd the described back-heating type generation-absorption system, increase by the 3rd generator, condenser, evaporimeter, the 4th solution pump, choke valve, cryogen liquid pump and the 3rd solution heat exchanger, the 3rd generator has the solution pipeline through the 4th solution pump, the 3rd solution heat exchanger is communicated with first absorber, first absorber also has the solution pipeline to be communicated with the 3rd generator through the 3rd solution heat exchanger, with first generator have refrigerant vapour passage and external communications be adjusted into first generator have the refrigerant vapour passage be communicated with the 3rd generator the back the 3rd generator have the cryogen liquid pipeline to be communicated with condenser again through choke valve, the 3rd generator also has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into evaporimeter respectively first absorber and second absorber has the refrigerant vapour passage to be communicated with first absorber and second absorber respectively, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

14. parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system, be in the above in the 1st described back-heating type generation-absorption system, increase by the 3rd generator, condenser, evaporimeter, the 3rd solution pump, the 4th solution pump, choke valve, cryogen liquid pump and the 3rd solution heat exchanger, the 3rd generator has the solution pipeline through the 4th solution pump, the 3rd solution heat exchanger is communicated with first absorber, first absorber also has the solution pipeline to be communicated with the 3rd generator through the 3rd solution heat exchanger, with first generator have drive thermal medium pipeline and external communications be adjusted into the 3rd generator have the refrigerant vapour passage to be communicated with afterwards with first generator first generator has the cryogen liquid pipeline to be communicated with condenser through choke valve again, having refrigerant vapour passage and external communications to be adjusted into first generator in first generator has the refrigerant vapour passage to be communicated with condenser, the 3rd generator also have surplus heat medium pipeline and external communications, having refrigerant vapour passage and external communications to be adjusted into second generator in second generator has the refrigerant vapour passage to be communicated with condenser, having refrigerant vapour passage and external communications to be adjusted into evaporimeter respectively first absorber and second absorber has the refrigerant vapour passage to be communicated with first absorber and second absorber respectively, condenser also has cooling medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications.

Description of drawings:

Fig. 1 is that solution series loops back hot type generation-absorption system structure and schematic flow sheet according to provided by the present invention.

Fig. 2 also is that solution series loops back hot type generation-absorption system structure and schematic flow sheet according to provided by the present invention.

Different being shown in Figure 2 with shown in Figure 1, first absorber does not have heated medium pipeline and external communications among Fig. 2, and first absorber only drives heat for second generator provides.

Fig. 3 is according to provided by the present invention, solution independent loops back-heating type generation-absorption system structure and schematic flow sheet.

Fig. 4 also is according to provided by the present invention, solution independent loops back-heating type generation-absorption system structure and schematic flow sheet.

Different being shown in Figure 4 with shown in Figure 3, first absorber does not have heated medium pipeline and external communications among Fig. 4, and first absorber only drives heat for second generator provides.

Fig. 5 is according to provided by the present invention, based on the single-stage single-action second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Fig. 6 is according to provided by the present invention, based on the single-stage single-action second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 2.

Fig. 7 is according to provided by the present invention, based on the single-stage single-action second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 3.

Fig. 8 is according to provided by the present invention, based on the one generator type two-stage second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Fig. 9 is according to provided by the present invention, based on the one generator type two-stage second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 3.

Figure 10 is according to provided by the present invention, based on the three grade of second class absorption heat pump structure of one generator type and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Figure 11 is according to provided by the present invention, based on the three grade of second class absorption heat pump structure of one generator type and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 3.

Figure 12 is according to provided by the present invention, based on the dual occurrence type two-stage second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Figure 13 is according to provided by the present invention, based on the dual occurrence type two-stage second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 3.

Figure 14 is according to provided by the present invention, based on the series circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Figure 15 is according to provided by the present invention, based on the series circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 3.

Figure 16 is according to provided by the present invention, based on the series circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Different being shown in Figure 16 with shown in Figure 14: provide solution by the 3rd generator to second generator among Figure 16.

Figure 17 is according to provided by the present invention, based on the series circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Figure 18 is according to provided by the present invention, based on the series circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 3.

Figure 17-shown in Figure 180 and Figure 14-different being shown in Figure 15: Figure 14-shown in Figure 15 belong to that (promptly (promptly first generator 1 provides solution to the 3rd generator A5, and Figure 17-high pressure generator (i.e. first generator 1) that belongs to shown in Figure 180 provides solution to low pressure generator (i.e. the 3rd generator A5) to high pressure generator by low pressure generator.

Figure 19 is according to provided by the present invention, based on the parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Figure 20 is according to provided by the present invention, based on the parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 3.

Figure 21 also is according to provided by the present invention, based on the parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump structure and the schematic flow sheet of back-heating type generation-absorption system as shown in Figure 1.

Different being shown in Figure 21 with shown in Figure 19: shown in Figure 19ly provide solution to second generator, and shown in Figure 21ly provide solution to second generator by low pressure generator (i.e. first generator 1) by high pressure generator (i.e. first generator 1).

Among the figure, 1-the first generator, 2-the first absorber, 3-the first solution pump, 4-the first solution heat exchanger, 5-the second generator, 6-the second absorber, 7-intermediate heat exchanger, 8-the second solution pump, 9-the three solution pump, 10-the second solution heat exchanger.

Among Fig. 5-Fig. 7, A1-condenser, B1-evaporimeter, C1-cryogen liquid pump.

Among Fig. 8-Fig. 9, A2-condenser, B2-evaporimeter, C2-absorption-evaporimeter, the D2-cryogen liquid pump/first cryogen liquid pump, E2-choke valve, F2-the 3rd solution heat exchanger, G2-second cryogen liquid pump.

Among Figure 10-Figure 11, A3-condenser, B3-evaporimeter, C3-one-level absorption-evaporimeter, D3-secondary absorption-evaporimeter, E3-cryogen liquid pump/first cryogen the liquid pump, F3-first throttle valve, G3-second choke valve, H3-the 3rd solution heat exchanger, I3-the 4th solution heat exchanger, J3-second cryogen liquid pump, K3-the 3rd cryogen liquid pump.

Among Figure 12-Figure 13, A4-condenser, B4-evaporimeter, C4-absorption-evaporimeter, D4-cryogen liquid pump, E4-choke valve/first throttle valve, F4-cryogenerator, G4-the 4th solution pump, H4-second choke valve, I4-the 3rd solution heat exchanger, J4-second cryogen liquid pump.

Among Figure 14-Figure 21, A5-the 3rd generator, B5-condenser, C5-evaporimeter, D5-the 4th solution pump, E5-choke valve, F5-cryogen liquid pump, G5-the 5th solution pump, H5-the 3rd solution heat exchanger.

Wherein, the steam pressure of second absorber and absorber inner space is consistent, the 3rd solution pump between the two is used to overcome the resistance of flow of solution through solution heat exchanger and pipeline, and first solution pump and second solution pump are used to overcome the pressure reduction of flowing through between solution heat exchanger, pipe resistance and the parts; When height (gravity) difference can be utilized, solution pump can omit.

The specific embodiment:

Describe the present invention in detail below in conjunction with accompanying drawing and example.

Solution series shown in Figure 1 loops back hot type generation-absorption system and is achieved in that

1. on the structure, it mainly is made up of first generator, first absorber, second absorber, second generator, intermediate heat exchanger, first solution pump, second solution pump, the 3rd solution pump, first solution heat exchanger and second solution heat exchanger; There is the solution pipeline to be communicated with first absorber 2 at what be applied to second class absorption heat pump by first generator 1 through first solution pump 3 and first solution heat exchanger 4, first absorber 2 also has the solution pipeline to be communicated with first generator 1 through first solution heat exchanger 4, also have surplus heat respectively medium or drive thermal medium pipeline and external communications and refrigerant vapour passage and external communications are arranged of first generator 1, first absorber 2 also has heated medium pipeline and external communications respectively and refrigerant vapour passage and the formed generation-absorption system of external communications is arranged, introduce second generator 5, second absorber 6, intermediate heat exchanger 7, second solution pump 8, the 3rd solution pump 9 and second solution heat exchanger 10, first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger, 4 connections, first absorber 2 changes first generator 1 into has the solution pipeline to be communicated with second generator 5 through first solution pump 3 with first solution heat exchanger 4, establish the solution pipeline through second solution pump 8 by second generator 5 again, second solution heat exchanger 10 is communicated with second absorber 6, second absorber 6 has the solution pipeline again through second solution heat exchanger 10, the 3rd solution pump 9 is communicated with absorber 2, intermediate heat exchanger 7 is communicated with second generator 5 and first absorber 2, second absorber 6 also has refrigerant vapour passage and external communications respectively and heated medium pipeline and external communications is arranged, and second generator 5 also has the refrigerant vapour passage with outside.

2. on the flow process, waste heat medium or discharge refrigerant vapour by first absorber 2 through the weak solution that first solution heat exchanger 4 enters first generator 1 through 1 heating of first generator from the driving heat medium flow of other parts, concentrated solution is through first solution pump 3, first solution heat exchanger 4 enters second generator 5, provide driving heat to heat by first generator 1 by intermediate heat exchanger 7 through first solution pump 3, the solution that first solution heat exchanger 4 enters second generator 5 discharges refrigerant vapour, concentrated solution after concentration further improves is through second solution pump 8, second solution heat exchanger 10 enters second absorber, 6 absorption refrigerant vapours and provides the elevated temperature heat load to heated medium, and the weak solution of second absorber 6 enters first absorber 2 through second solution heat exchanger 10 and the 3rd solution pump 9, absorb refrigerant vapour and respectively heat release drive heat in heated medium with by intermediate heat exchanger 7 for second generator 5 provides.

According to the warm eventually height of heated medium demand heating, corresponding thermic load---the load of transmission is few more to 5 transmission of second generator for intermediate heat exchanger 7, the whole temperature that heated medium reaches is also low more, the heat release of the second absorber 6 pairing performance index of loading approaches the pairing performance index of first absorber, 2 heat releases more, and this makes can have higher performance index when realizing high-temperature heat supply in conjunction with second class absorption heat pump on the basis of the present invention within the specific limits.

Solution series shown in Figure 2 loops back hot type generation-absorption system, its structure and operation principle and the difference that does not have essence shown in Figure 1, the two different place is, first absorber, 2 no heated medium pipeline and external communications among Fig. 2, the heat that first absorber, 2 absorption refrigerant vapours are emitted only is used as the driving heat of second generator 5.

Solution independent loops back-heating type generation-absorption system shown in Figure 3 is achieved in that

1. on the structure, it mainly is made up of first generator, first absorber, second absorber, second generator, intermediate heat exchanger, first solution pump, second solution pump, first solution heat exchanger and second solution heat exchanger; There is the solution pipeline to be communicated with first absorber 2 at what be applied to second class absorption heat pump by first generator 1 through first solution pump 3 and first solution heat exchanger 4, first absorber 2 also has the solution pipeline to be communicated with first generator 1 through first solution heat exchanger 4, also have surplus heat respectively medium or drive thermal medium pipeline and external communications and have the refrigerant vapour passage to be communicated with of first generator 1 with condensate component, first absorber 2 also has heated medium pipeline and external communications respectively and has the refrigerant vapour passage to be communicated with formed generation-absorption system with the refrigerant vapour production part, introduce second generator 5, second absorber 6, intermediate heat exchanger 7, second solution pump 8 and second solution heat exchanger 10, second generator 5 has the solution pipeline to be communicated with second absorber 6 through second solution pump 8 and second solution heat exchanger 10, second absorber 6 also has the solution pipeline to be communicated with second generator 5 through second solution heat exchanger 10, intermediate heat exchanger 7 is communicated with second generator 5 and first absorber 2, second absorber 6 also has refrigerant vapour passage and external communications respectively and heated medium pipeline and external communications is arranged, and second generator 5 also has the refrigerant vapour passage with outside.

2. on the flow process, waste heat medium or the heating of driving thermal medium discharge refrigerant vapour from first absorber 2 through the weak solution that first solution heat exchanger 4 enters first generator 1, the concentrated solution of first generator 1 enters first absorber 2 through first solution heat exchanger 4, absorb refrigerant vapour and respectively heat release discharge refrigerant vapour from second absorber 6 through the solution that second solution heat exchanger 10 enters second generator 5 in heated medium with by intermediate heat exchanger 7 heating, the concentrated solution of second generator 5 enters second absorber 6 through second solution pump 8 and second solution heat exchanger 10, absorb refrigerant vapour and heat release in heated medium, the concentrated solution of second absorber 6 is got back to second generator 5 through second solution heat exchanger 10.

Solution independent loops back-heating type generation-absorption system shown in Figure 4, its structure and operation principle and the difference that does not have essence shown in Figure 3, the two different place is, first absorber, 2 no heated medium pipeline and external communications among Fig. 4, the heat that first absorber, 2 absorption refrigerant vapours are emitted only is used as the driving heat of second generator 5.

Single-stage single-action second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 5 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, with the waste heat medium is the driving thermal medium of first generator 1, increase condenser A1, evaporimeter B1 and cryogen liquid pump C1, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A1, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A1, condenser A1 also has the cryogen liquid pipeline to be communicated with evaporimeter B1 through cryogen liquid pump C1, having refrigerant vapour passage and external communications to be adjusted into evaporimeter B1 first absorber 2 has the refrigerant vapour passage to be communicated with first absorber 2, having refrigerant vapour passage and external communications to be adjusted into evaporimeter B1 second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2, condenser A1 also has cooling medium pipeline and external communications, evaporimeter B1 also have surplus heat medium pipeline and external communications

2. on the flow process, the waste heat MEDIA FLOW enters condenser A1 through the refrigerant vapour that 1 heating of first generator enters the solution release in it, the refrigerant vapour that second generator 5 discharges enters condenser A1, the heat release in condenser A1 of two parts refrigerant vapour becomes cryogen liquid behind cooling medium, the cryogen liquid of condenser A1 enters evaporimeter B1 through cryogen liquid pump C1, and the cryogen liquid that enters evaporimeter B1 is heated into refrigerant vapour by the waste heat medium also to be provided to first absorber 2 and second absorber 6 respectively.

Single-stage single-action second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 6, be to loop back in the hot type generation-absorption system at solution series shown in Figure 2 to increase condenser A1, evaporimeter B1 and cryogen liquid pump C1 forms, its structure and operation principle and the difference that does not have essence shown in Figure 5, the two different place is, first absorber, 2 no heated medium pipeline and external communications among Fig. 6, the heat that first absorber, 2 absorption refrigerant vapours are emitted only is used as the driving heat of second generator 5.

In view of the difference between shown in Figure 6 and shown in Figure 5 is exactly difference between shown in Figure 1 and shown in Figure 2, in the example of back, will not carry out specific embodiment explanation to second class absorption heat pump like this based on back-heating type generation-absorption system shown in Figure 2; Same reason is not carried out specific embodiment explanation to second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 2 yet.

Single-stage single-action second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 7 is achieved in that

1. on the structure, in solution independent loops back-heating type generation-absorption system shown in Figure 3, with the waste heat medium is the driving thermal medium of first generator 1, increase condenser A1, evaporimeter B1 and cryogen liquid pump C1, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A1, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A1, condenser A1 also has the cryogen liquid pipeline to be communicated with evaporimeter B1 through cryogen liquid pump C1, having refrigerant vapour passage and external communications to be adjusted into evaporimeter B1 first absorber 2 has the refrigerant vapour passage to be communicated with first absorber 2, having refrigerant vapour passage and external communications to be adjusted into evaporimeter B1 second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2, condenser A1 also has cooling medium pipeline and external communications, evaporimeter B1 also have surplus heat medium pipeline and external communications.

One generator type two-stage second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 8 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, with the waste heat medium is the driving thermal medium of generator 1, increase condenser A2, evaporimeter B2, absorption-evaporimeter C2, cryogen liquid pump D2, choke valve E2 and the 3rd solution heat exchanger F2, changing first absorber 2 into first absorber 2 through first solution heat exchanger, 4 connections, first generator 1 has the solution pipeline to be communicated with absorption-evaporimeter C2 through the 3rd solution heat exchanger F2, absorption-evaporimeter C2 has the solution pipeline to be communicated with generator 1 through first solution heat exchanger 4 again, first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger, 4 connections, second generator 5 changes first generator 1 into has the solution pipeline through first solution pump 3, be communicated with second generator 5 through the 3rd solution heat exchanger F2 again behind first solution heat exchanger 4, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A2, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A2, having refrigerant vapour passage and external communications to be adjusted into condenser A2 respectively first absorber 2 and second absorber 6 has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 more respectively with absorption-evaporimeter C2 after absorption-evaporimeter C2 is communicated with through cryogen liquid pump D2, condenser A2 also has the cryogen liquid pipeline to be communicated with evaporimeter B2 through choke valve E2 behind cryogen liquid pump D2 again, evaporimeter B2 also has the refrigerant vapour passage to be communicated with absorption-evaporimeter C2, condenser A2 also has cooling medium pipeline and external communications, evaporimeter B2 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided to condenser A2 through the weak solution release refrigerant vapour that first solution heat exchanger 4 enters first generator 1 by absorption-evaporimeter C2, the refrigerant vapour that second generator 5 produces provides to condenser A2, this two parts refrigerant vapour heat release that enters condenser A2 becomes cryogen liquid in cooling medium, the heating of waste heat medium becomes refrigerant vapour to provide to absorption-evaporimeter C2 by condenser A2 through the cryogen liquid that cryogen liquid pump D2 and choke valve E2 enter evaporimeter B2, the refrigerant vapour that enters absorption-evaporimeter C2 is absorbed by the solution that is provided to absorptions-evaporimeter C2 through the 3rd solution heat exchanger F2 by first absorber 2 and heating becomes refrigerant vapour from the cryogen liquid of condenser A2, and the refrigerant vapour of absorption-evaporimeter C2 generation provides to first absorber 2 and second absorber 6 respectively.

One generator type two-stage second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 9 is achieved in that

1. on the structure, in solution independent loops back-heating type generation-absorption system shown in Figure 3, with the waste heat medium is the driving thermal medium of generator 1, increase condenser A2, evaporimeter B2, absorption-evaporimeter C2, the first cryogen liquid pump D2, the 3rd solution heat exchanger F2 and the second cryogen liquid pump G2, changing first absorber 2 into first absorber 2 through first solution heat exchanger, 4 connections, first generator 1 has the solution pipeline to be communicated with absorption-evaporimeter C2 through the 3rd solution heat exchanger F2, absorption-evaporimeter C2 has the solution pipeline to be communicated with generator 1 through first solution heat exchanger 4 again, first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger, 4 connections, first absorber 2 changes first generator 1 into has the solution pipeline through first solution pump 3, be communicated with first absorber 2 through the 3rd solution heat exchanger F2 again behind first solution heat exchanger 4, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A2, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A2, having refrigerant vapour passage and external communications to be adjusted into evaporimeter B2 respectively first absorber 2 and second absorber 6 has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 more respectively with absorption-evaporimeter C2 after absorption-evaporimeter C2 is communicated with through the second cryogen liquid pump G2, condenser A2 also has the cryogen liquid pipeline to be communicated with evaporimeter B2 through the first cryogen liquid pump D2, evaporimeter B2 also has the refrigerant vapour passage to be communicated with absorption-evaporimeter C2, condenser A2 also has cooling medium pipeline and external communications, evaporimeter B2 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided to condenser A2 through the weak solution release refrigerant vapour that first solution heat exchanger 4 enters first generator 1 by absorption-evaporimeter C2, the refrigerant vapour that second generator 5 produces provides to condenser A2, this two parts refrigerant vapour heat release that enters condenser A2 becomes cryogen liquid in cooling medium, the heating of waste heat medium becomes refrigerant vapour to provide to absorption-evaporimeter C2 by evaporimeter B2 through the cryogen liquid that the first cryogen liquid pump D2 enters evaporimeter B2, the refrigerant vapour that enters absorption-evaporimeter C2 is come the cryogen liquid of flash-pot B2 to become refrigerant vapour through the 3rd solution heat exchanger F2 to solution absorption and the heating that absorption-evaporimeter C2 provides by first absorber 2, and the refrigerant vapour that absorption-evaporimeter C2 produces provides to first absorber 2 and second absorber 6 respectively.

Three grade of second class absorption heat pump of one generator type based on back-heating type generation-absorption system shown in Figure 10 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, increase condenser A3, evaporimeter B3, one-level absorption-evaporimeter C3, secondary absorption-evaporimeter D3, cryogen liquid pump E3, first throttle valve F3, the second choke valve G3, the 3rd solution heat exchanger H3 and the 4th solution heat exchanger I3, having the solution pipeline to change first absorber 2 into through first solution heat exchanger, 4 connection generators 1 first absorber 2 has the solution pipeline to be communicated with secondary absorption-evaporimeter D3 through the 3rd solution heat exchanger H3, secondary absorption-evaporimeter D3 also has the solution pipeline to have the solution pipeline to be communicated with generator 1 through first solution heat exchanger 4 through the 4th solution heat exchanger I3 again with one-level absorption-evaporimeter C3 connected sum one-level absorption-evaporimeter C3, again first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger, 4 connections, second generator 5 changes first generator 1 into has the solution pipeline through first solution pump 3, behind first solution heat exchanger 4 again through the 4th solution heat exchanger I3, the 3rd solution heat exchanger H3 is communicated with second generator 5, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A3, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A3, having refrigerant vapour passage and external communications to be adjusted into condenser A3 respectively first absorber 2 and second absorber 6 has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 more respectively with secondary absorption-evaporimeter D3 after secondary absorption-evaporimeter D3 is communicated with through cryogen liquid pump E3, condenser A3 also has the cryogen liquid pipeline through having the refrigerant vapour passage to be communicated with secondary absorption-evaporimeter D3 through the second choke valve G3 again with one-level absorption-evaporimeter C3 after one-level absorption-evaporimeter C3 is communicated with again through first throttle valve F3 and evaporimeter B3 connected sum more respectively behind the cryogen liquid pump E3, evaporimeter B3 also has the refrigerant vapour passage to be communicated with one-level absorption-evaporimeter C3, condenser A3 also has cooling medium pipeline and external communications, evaporimeter B3 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided to condenser A3 through the weak solution release refrigerant vapour that first solution heat exchanger 4 enters first generator 1 by one-level absorption-evaporimeter C3, the refrigerant vapour that second generator 5 produces provides to condenser A3, this two parts refrigerant vapour heat release that enters condenser A3 becomes cryogen liquid in cooling medium, the heating of waste heat medium becomes refrigerant vapour to provide to one-level absorption-evaporimeter C3 by condenser A3 through the cryogen liquid that cryogen liquid pump E3 and first throttle valve F3 enter evaporimeter B3, the refrigerant vapour that enters one-level absorption-evaporimeter C3 is entered the solution absorption of one-level absorptions-evaporimeter C3 and is heated by condenser A3 through cryogen liquid pump E3 through the 4th solution heat exchanger I3 by secondary absorptions-evaporimeter D3, the second choke valve G3 enters one-level absorption-evaporimeter C3 cryogen liquid and becomes refrigerant vapour, the refrigerant vapour that one-level absorption-evaporimeter C3 produces is to secondary absorption-evaporimeter D3, the refrigerant vapour that enters secondary absorption-evaporimeter D3 is become refrigerant vapour by condenser A3 through the cryogen liquid that cryogen liquid pump E3 enters secondary absorption-evaporimeter through solution absorption and the heating that the 3rd solution heat exchanger H3 enters secondary absorption-evaporimeter D3 by first absorber 2, and the refrigerant vapour that secondary absorption-evaporimeter D3 produces provides to first absorber 2 and second absorber 6 respectively.

Three grade of second class absorption heat pump of one generator type based on back-heating type generation-absorption system shown in Figure 11 is achieved in that

1. on the structure, in solution independent loops back-heating type generation-absorption system shown in Figure 3, increase condenser A3, evaporimeter B3, one-level absorption-evaporimeter C3, secondary absorption-evaporimeter D3, the first cryogen liquid pump E3, the second cryogen liquid pump J3, the 3rd cryogen liquid pump K3, the 3rd solution heat exchanger H3 and the 4th solution heat exchanger I3, having the solution pipeline to change first absorber 2 into through first solution heat exchanger, 4 connection generators 1 first absorber 2 has the solution pipeline to be communicated with secondary absorption-evaporimeter D3 through the 3rd solution heat exchanger H3, secondary absorption-evaporimeter D3 also has the solution pipeline to have the solution pipeline to be communicated with generator 1 through first solution heat exchanger 4 through the 4th solution heat exchanger I3 again with one-level absorption-evaporimeter C3 connected sum one-level absorption-evaporimeter C3, again first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger, 4 connections, first absorber 2 changes first generator 1 into has the solution pipeline through first solution pump 3, behind first solution heat exchanger 4 again through the 4th solution heat exchanger I3, the 3rd solution heat exchanger H3 is communicated with first absorber 2, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A3, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A3, there are refrigerant vapour passage and external communications to be adjusted into evaporimeter B3 respectively first absorber 2 and second absorber 6 and the cryogen liquid pipeline arranged through the second cryogen liquid pump J3, there is the refrigerant vapour passage to be communicated with through the 3rd cryogen liquid pump K3 more respectively with secondary absorption-evaporimeter D3 after secondary absorption-evaporimeter D3 is communicated with again with first absorber 2 and second absorber 6, condenser A3 also has the cryogen liquid pipeline to be communicated with evaporimeter B3 through the first cryogen liquid pump E3, evaporimeter B3 also has the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with secondary absorption-evaporimeter D3 through the second cryogen liquid pump J3 again with one-level absorption-evaporimeter C3 after one-level absorption-evaporimeter C3 is communicated with, evaporimeter B3 also has the refrigerant vapour passage to be communicated with one-level absorption-evaporimeter C3, condenser A3 also has cooling medium pipeline and external communications, evaporimeter B3 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided to condenser A3 through the weak solution release refrigerant vapour that first solution heat exchanger 4 enters first generator 1 by one-level absorption-evaporimeter C3, the refrigerant vapour that second generator 5 produces provides to condenser A3, this two parts refrigerant vapour heat release that enters condenser A3 becomes cryogen liquid in cooling medium, the heating of waste heat medium becomes refrigerant vapour to provide to one-level absorption-evaporimeter C3 by condenser A3 through the cryogen liquid that the first cryogen liquid pump E3 enters evaporimeter B3, the refrigerant vapour that enters one-level absorption-evaporimeter C3 is entered the solution absorption of one-level absorptions-evaporimeter C3 and heats through the 4th solution heat exchanger I3 by secondary absorptions-evaporimeter D3 to be entered one-level absorption-evaporimeter C3 cryogen liquid by evaporimeter B3 through the second cryogen liquid pump J3 and becomes refrigerant vapour, the refrigerant vapour that one-level absorption-evaporimeter C3 produces is to secondary absorption-evaporimeter D3, the refrigerant vapour that enters secondary absorption-evaporimeter D3 is become refrigerant vapour through the second cryogen liquid pump J3 with the cryogen liquid that the 3rd cryogen liquid pump K3 enters secondary absorption-evaporimeter by evaporimeter B3 through solution absorption and the heating that the 3rd solution heat exchanger H3 enters secondary absorption-evaporimeter D3 by first absorber 2, and the refrigerant vapour that secondary absorption-evaporimeter D3 produces provides to first absorber 2 and second absorber 6 respectively.

Dual occurrence type two-stage second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 12 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, increase condenser A4, evaporimeter B4, absorption-evaporimeter C4, cryogen liquid pump D4, first throttle valve E4, cryogenerator F4, the 4th solution pump G4, the second choke valve H4 and the 3rd solution heat exchanger I4, having the solution pipeline to change first absorber 2 into through first solution heat exchanger, 4 connections, first generator 1 first absorber 2 has the solution pipeline to be communicated with absorption-evaporimeter C4 through first solution heat exchanger 4, absorption-evaporimeter C4 has the solution pipeline to also have the solution pipeline through the 4th solution pump G4 through the 3rd solution heat exchanger I4 connection cryogenerator F4 and cryogenerator F4 again, the 3rd solution heat exchanger I4 is communicated with first generator 1, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A4, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A4, first absorber 2 and second absorber 6 there are refrigerant vapour passage and external communications respectively, first generator 1 has and drives thermal medium pipeline and external communications and be adjusted into condenser A4 and have the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with first absorber 2 respectively through cryogen liquid pump D4 again with absorption-evaporimeter C4 after absorption-evaporimeter C4 is communicated with, being communicated with back first generator 1 with first generator 1 with second absorber, 6 connected sums has the cryogen liquid pipeline to be communicated with condenser A4 through first throttle valve E4 again, condenser A4 also has the cryogen liquid pipeline to be communicated with evaporimeter B4 through the second choke valve H4 behind cryogen liquid pump D4 again, evaporimeter B4 also has the refrigerant vapour passage to be communicated with absorption-evaporimeter C4, condenser A4 also has cooling medium pipeline and external communications, evaporimeter B4 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided to condenser A4 by the solution release refrigerant vapour that absorption-evaporimeter C4 enters cryogenerator F4, the refrigerant vapour that second generator 5 produces provides to condenser A4, the refrigerant vapour that first generator 1 produces provides to condenser A4, this the three parts refrigerant vapour heat release that enters condenser A4 becomes cryogen liquid in cooling medium, and the cryogen liquid that drives the refrigerant vapour heat release formation of thermal medium as first generator 1 enters condenser A4 after the second choke valve H4 throttling; The waste heat medium heats by condenser A4 through cryogen liquid pump D4, the cryogen liquid that choke valve E4 enters evaporimeter B4 becomes refrigerant vapour to provide to absorption-evaporimeter C4, the refrigerant vapour that enters absorption-evaporimeter C4 is absorbed by the solution that enters absorptions-evaporimeter C4 through first solution heat exchanger 4 by first absorber 2 and heats by condenser A4 and becomes refrigerant vapour through the flow through cryogen liquid of absorption-evaporimeter C4 of cryogen liquid pump D4, the refrigerant vapour that absorption-evaporimeter C4 produces is respectively to first generator 1, first absorber 2 and second absorber 6 provide, and the refrigerant vapour that enters first generator 1 heats by cryogenerator F4 through the 4th solution pump G4, the solution that the 3rd solution heat exchanger I4 enters first generator 1 discharges refrigerant vapour.

Dual occurrence type two-stage second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 13 is achieved in that

1. on the structure, in solution independent loops back-heating type generation-absorption system shown in Figure 3, increase condenser A4, evaporimeter B4, absorption-evaporimeter C4, the first cryogen liquid pump D4, choke valve E4, cryogenerator F4, the 4th solution pump G4, the 3rd solution heat exchanger I4 and the second cryogen liquid pump J4, having the solution pipeline to change first absorber 2 into through first solution heat exchanger, 4 connections, first generator 1 first absorber 2 has the solution pipeline to be communicated with absorption-evaporimeter C4 through first solution heat exchanger 4, absorption-evaporimeter C4 has the solution pipeline to also have the solution pipeline through the 4th solution pump G4 through the 3rd solution heat exchanger I4 connection cryogenerator F4 and cryogenerator F4 again, the 3rd solution heat exchanger I4 is communicated with first generator 1, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser A4, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser A4, first absorber 2 and second absorber 6 there are refrigerant vapour passage and external communications respectively, first generator 1 has and drives thermal medium pipeline and external communications and be adjusted into evaporimeter B4 and have the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with first absorber 2 respectively through the second cryogen liquid pump J4 again with absorption-evaporimeter C4 after absorption-evaporimeter C4 is communicated with, being communicated with back first generator 1 with first generator 1 with second absorber, 6 connected sums has the cryogen liquid pipeline to be communicated with condenser A4 through choke valve E4 again, condenser A4 also has the cryogen liquid pipeline to be communicated with evaporimeter B4 through the first cryogen liquid pump D4, evaporimeter B4 also has the refrigerant vapour passage to be communicated with absorption-evaporimeter C4, condenser A4 also has cooling medium pipeline and external communications, evaporimeter B4 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided to condenser A4 by the solution release refrigerant vapour that absorption-evaporimeter C4 enters cryogenerator F4, the refrigerant vapour that second generator 5 produces provides to condenser A4, the refrigerant vapour that first generator 1 produces provides to condenser A4, this the three parts refrigerant vapour heat release that enters condenser A4 becomes cryogen liquid in cooling medium, and the cryogen liquid that drives the refrigerant vapour heat release formation of thermal medium as first generator 1 enters condenser A4 after the second choke valve H4 throttling; The heating of waste heat medium becomes refrigerant vapour to provide to absorption-evaporimeter C4 by condenser A4 through the cryogen liquid that cryogen liquid pump D4 enters evaporimeter B4, the refrigerant vapour that enters absorption-evaporimeter C4 is absorbed by the solution that enters absorptions-evaporimeter C4 through first solution heat exchanger 4 by first absorber 2 and heats by evaporimeter B4 and becomes refrigerant vapour through the flow through cryogen liquid of absorption-evaporimeter C4 of the second cryogen liquid pump J4, the refrigerant vapour that absorption-evaporimeter C4 produces is respectively to first generator 1, first absorber 2 and second absorber 6 provide, and the refrigerant vapour that enters first generator 1 heats by cryogenerator F4 through the 4th solution pump G4, the solution that the 3rd solution heat exchanger I4 enters first generator 1 discharges refrigerant vapour.

Series circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 14 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, increase by the 3rd generator A5, condenser B5, evaporimeter C5, the 4th solution pump D5, choke valve E5 and cryogen liquid pump F5, having the solution pipeline to change first absorber 2 into through first solution heat exchanger, 4 connections, first generator 1 first absorber 2 has the solution pipeline to be communicated with the 3rd generator A5 through first solution heat exchanger 4, the 3rd generator A5 has the solution pipeline to be communicated with first generator 1 through the 4th solution pump D5 again, with first generator 1 have refrigerant vapour passage and external communications be adjusted into first generator 1 have the refrigerant vapour passage be communicated with the 3rd generator A5 the back the 3rd generator A5 have the cryogen liquid pipeline to be communicated with condenser B5 again through choke valve E5, the 3rd generator A5 also has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has the cryogen liquid pipeline to be communicated with evaporimeter C5 through cryogen liquid pump F5, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided as its driving thermal medium to the 3rd generator A5 by the 3rd generator A5 enters first generator 1 through the 4th solution pump D5 solution release refrigerant vapour, the refrigerant vapour heating that drives thermal medium as the 3rd generator A5 is provided to condenser B5 through the solution release refrigerant vapour that first solution heat exchanger 4 enters the 3rd generator A5 by first absorber 2, the cryogen liquid that the refrigerant vapour heat release forms enters condenser B5 after choke valve E5 throttling, the refrigerant vapour that second generator 5 produces provides to condenser B5, the refrigerant vapour heat release that enters condenser B5 becomes cryogen liquid in cooling medium, and the heating of waste heat medium becomes refrigerant vapour to provide to first absorber 2 and second absorber 6 respectively by condenser B5 through the cryogen liquid that cryogen liquid pump F5 enters evaporimeter C5.

Series circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 15 is achieved in that

1. on the structure, in solution independent loops back-heating type generation-absorption system shown in Figure 3, increase by the 3rd generator A5, condenser B5, evaporimeter C5, the 4th solution pump D5, choke valve E5 and cryogen liquid pump F5, having the solution pipeline to change first absorber 2 into through first solution heat exchanger, 4 connections, first generator 1 first absorber 2 has the solution pipeline to be communicated with the 3rd generator A5 through first solution heat exchanger 4, the 3rd generator A5 has the solution pipeline to be communicated with first generator 1 through the 4th solution pump D5 again, with first generator 1 have refrigerant vapour passage and external communications be adjusted into first generator 1 have the refrigerant vapour passage be communicated with the 3rd generator A5 the back the 3rd generator A5 have the cryogen liquid pipeline to be communicated with condenser B5 again through choke valve E5, the 3rd generator A5 also has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has the cryogen liquid pipeline to be communicated with evaporimeter C5 through cryogen liquid pump F5, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

Series circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 16 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, increase by the 3rd generator A5, condenser B5, evaporimeter C5, the 4th solution pump D5, choke valve E5, cryogen liquid pump F5 and the 5th solution pump G5, having the solution pipeline to change first absorber 2 into through first solution heat exchanger, 4 connections, first generator 1 first absorber 2 has the solution pipeline to be communicated with the 3rd generator A5 through first solution heat exchanger 4, the 3rd generator A5 has the solution pipeline to be communicated with first generator 1 through the 4th solution pump D5 again, first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger 4 is communicated with second generator 5 and is adjusted into first generator 1 and the solution pipeline is arranged through first solution pump 3, first solution heat exchanger 4 is communicated with first absorber 2, setting up the solution pipeline by the 3rd generator A5 is communicated with second generator 5 through the 5th solution pump G5, with first generator 1 have refrigerant vapour passage and external communications be adjusted into first generator 1 have the refrigerant vapour passage be communicated with the 3rd generator A5 the back the 3rd generator A5 have the cryogen liquid pipeline to be communicated with condenser B5 again through choke valve E5, the 3rd generator A5 also has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has the cryogen liquid pipeline to be communicated with evaporimeter C5 through cryogen liquid pump F5, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

Series circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 17 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, increase by the 3rd generator A5, condenser B5, evaporimeter C5, choke valve E5, cryogen liquid pump F5 and the 3rd solution heat exchanger H5, first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger 4 is communicated with second generator 5 and is adjusted into first generator 1 and has the solution pipeline to be communicated with the 3rd generator A5 through the 3rd solution heat exchanger H5, the 3rd generator A5 has the solution pipeline again through first solution pump 3, the 3rd solution heat exchanger H5 and first solution heat exchanger 4 are communicated with second generator 5, with first generator 1 have refrigerant vapour passage and external communications be adjusted into first generator 1 have the refrigerant vapour passage be communicated with the 3rd generator A5 the back the 3rd generator A5 have the cryogen liquid pipeline to be communicated with condenser B5 again through choke valve E5, the 3rd generator A5 also has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided as its driving thermal medium to the 3rd generator A5 by second absorber 2 enters first generator 1 through first solution heat exchanger 4 solution release refrigerant vapour, the refrigerant vapour heating that drives thermal medium as the 3rd generator A5 is provided to condenser B5 through the solution release refrigerant vapour that the 3rd solution heat exchanger H5 enters the 3rd generator A5 by first generator 1, the cryogen liquid that the refrigerant vapour heat release forms enters condenser B5 after choke valve E5 throttling, the refrigerant vapour that second generator 5 produces provides to condenser B5, the refrigerant vapour heat release that enters condenser B5 becomes cryogen liquid in cooling medium, and the heating of waste heat medium becomes refrigerant vapour to provide to first absorber 2 and second absorber 6 respectively by condenser B5 through the cryogen liquid that cryogen liquid pump F5 enters evaporimeter C5.

Series circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 180 is achieved in that

1. on the structure, in solution independent loops back-heating type generation-absorption system shown in Figure 3, increase by the 3rd generator A5, condenser B5, evaporimeter C5, choke valve E5, cryogen liquid pump F5 and the 3rd solution heat exchanger H5, first generator 1 there is the solution pipeline through first solution pump 3, first solution heat exchanger 4 is communicated with first absorber 2 and is adjusted into first generator 1 and has the solution pipeline to be communicated with the 3rd generator A5 through the 3rd solution heat exchanger H5, the 3rd generator A5 has the solution pipeline again through first solution pump 3, the 3rd solution heat exchanger H5 and first solution heat exchanger 4 are communicated with first absorber 2, with first generator 1 have refrigerant vapour passage and external communications be adjusted into first generator 1 have the refrigerant vapour passage be communicated with the 3rd generator A5 the back the 3rd generator A5 have the cryogen liquid pipeline to be communicated with condenser B5 again through choke valve E5, the 3rd generator A5 also has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

Parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 19 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, increase by the 3rd generator A5, condenser B5, evaporimeter C5, the 4th solution pump D5, choke valve E5, cryogen liquid pump F5 and the 3rd solution heat exchanger H5, the 3rd generator A5 has the solution pipeline through the 4th solution pump D5, the 3rd solution heat exchanger H5 is communicated with first absorber 2, first absorber 2 also has the solution pipeline to be communicated with the 3rd generator A5 through the 3rd solution heat exchanger H5, with first generator 1 have refrigerant vapour passage and external communications be adjusted into first generator 1 have the refrigerant vapour passage be communicated with the 3rd generator A5 the back the 3rd generator A5 have the cryogen liquid pipeline to be communicated with condenser B5 again through choke valve E5, the 3rd generator A5 also has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided as its driving thermal medium to the 3rd generator A5 by second absorber 2 enters first generator 1 through first solution heat exchanger 4 solution release refrigerant vapour, the refrigerant vapour heating that drives thermal medium as the 3rd generator A5 is provided to condenser B5 through the solution release refrigerant vapour that the 3rd solution heat exchanger H5 enters the 3rd generator A5 by first absorber 2, the cryogen liquid that the refrigerant vapour heat release forms enters condenser B5 after choke valve E5 throttling, the refrigerant vapour that second generator 5 produces provides to condenser B5, the refrigerant vapour heat release that enters condenser B5 becomes cryogen liquid in cooling medium, and the heating of waste heat medium becomes refrigerant vapour to provide to first absorber 2 and second absorber 6 respectively by condenser B5 through the cryogen liquid that cryogen liquid pump F5 enters evaporimeter C5.

Parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 20 is achieved in that

1. on the structure, in solution independent loops back-heating type generation-absorption system shown in Figure 3, increase by the 3rd generator A5, condenser B5, evaporimeter C5, the 4th solution pump D5, choke valve E5, cryogen liquid pump F5 and the 3rd solution heat exchanger H5, the 3rd generator A5 has the solution pipeline through the 4th solution pump D5, the 3rd solution heat exchanger H5 is communicated with first absorber 2, first absorber 2 also has the solution pipeline to be communicated with the 3rd generator A5 through the 3rd solution heat exchanger H5, with first generator 1 have refrigerant vapour passage and external communications be adjusted into first generator 1 have the refrigerant vapour passage be communicated with the 3rd generator A5 the back the 3rd generator A5 have the cryogen liquid pipeline to be communicated with condenser B5 again through choke valve E5, the 3rd generator A5 also has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

Parallel connection circulation single-stage economic benefits and social benefits second class absorption heat pump based on back-heating type generation-absorption system shown in Figure 21 is achieved in that

1. on the structure, loop back in the hot type generation-absorption system at solution series shown in Figure 1, increase by the 3rd generator A5, condenser B5, evaporimeter C5, the 3rd solution pump 9, the 4th solution pump D5, choke valve E5, cryogen liquid pump F5 and the 3rd solution heat exchanger H5, the 3rd generator A5 has the solution pipeline through the 4th solution pump D5, the 3rd solution heat exchanger H5 is communicated with first absorber 2, first absorber 2 also has the solution pipeline to be communicated with the 3rd generator A5 through the 3rd solution heat exchanger H5, with first generator 1 have drive thermal medium pipeline and external communications be adjusted into the 3rd generator A5 have the refrigerant vapour passage to be communicated with afterwards with first generator 1 first generator 1 has the cryogen liquid pipeline to be communicated with condenser B5 through choke valve E5 again, the 3rd generator A5 also have surplus heat medium pipeline and external communications, having refrigerant vapour passage and external communications to be adjusted into first generator 1 in first generator 1 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into second generator 5 in second generator 5 has the refrigerant vapour passage to be communicated with condenser B5, having refrigerant vapour passage and external communications to be adjusted into evaporimeter C5 respectively first absorber 2 and second absorber 6 has the refrigerant vapour passage to be communicated with first absorber 2 and second absorber 6 respectively, condenser B5 also has cooling medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.

2. on the flow process, the heating of waste heat medium is provided as its driving thermal medium to first generator 1 by second absorber 2 enters the 3rd generator A5 through the 3rd solution heat exchanger H5 solution release refrigerant vapour, the refrigerant vapour heating that drives thermal medium as first generator 1 is provided to condenser B5 through the solution release refrigerant vapour that first solution heat exchanger 4 enters first generator 1 by first absorber 2, the cryogen liquid that the refrigerant vapour heat release forms enters condenser B5 after choke valve E5 throttling, the refrigerant vapour that first generator 1 produces enters condenser B5, the refrigerant vapour that second generator 5 produces provides to condenser B5, the refrigerant vapour heat release that enters condenser B5 becomes cryogen liquid in cooling medium, and the heating of waste heat medium becomes refrigerant vapour to provide to first absorber 2 and second absorber 6 respectively by condenser B5 through the cryogen liquid that cryogen liquid pump F5 enters evaporimeter C5.

The effect that the technology of the present invention can realize---back-heating type generation-absorption system proposed by the invention and have following effect and advantage based on the second-kind absorption-type heat pump of back-heating type generation-absorption system:

1. back-heating type generation-absorption system proposed by the invention can effectively promote waste heat supply temperature, improves the low temperature heat rate.

2. but back-heating type generation-absorption system flexible modulation backheat proposed by the invention is loaded, thereby the running parameter that obtains suiting and corresponding performance index.

3. the second-kind absorption-type heat pump based on back-heating type generation-absorption system of the present invention's proposition keeps the superior performance index, can improve UTILIZATION OF VESIDUAL HEAT IN efficient.

4. the second-kind absorption-type heat pump based on back-heating type generation-absorption system that proposes of the present invention, enriched the kind of second-kind absorption-type heat pump, can realize the by a relatively large margin lifting of waste heat supply temperature, can utilize the waste heat of lower temperature and provide the heat supply of higher temperature to the user, enlarge the heat supply temperature scope of second-kind absorption-type heat pump.

4. the second-kind absorption-type heat pump based on back-heating type generation-absorption system of the present invention's proposition can be realized the segmentation heat supply, has heat supply temperature adjustable range advantage wide, easy to adjust.

In a word, back-heating type generation-absorption system proposed by the invention and based on the second-kind absorption-type heat pump of back-heating type generation-absorption system, but flexible modulation backheat load has suitable running parameter and corresponding superior performance index; Enriched the kind of second-kind absorption-type heat pump, can realize the by a relatively large margin lifting of waste heat supply temperature, can utilize the waste heat of lower temperature and provide the heat supply of higher temperature to the user, enlarge the heat supply temperature scope of second-kind absorption-type heat pump, have good creativeness, novelty and practicality.

Claims

1. back-heating type generation-absorption system mainly is made up of first generator, first absorber, second absorber, second generator, intermediate heat exchanger, first solution pump, second solution pump, the 3rd solution pump, first solution heat exchanger and second solution heat exchanger; There is the solution pipeline to be communicated with first absorber (2) at what be applied to second class absorption heat pump by first generator (1) through first solution pump (3) and first solution heat exchanger (4), first absorber (2) also has the solution pipeline to be communicated with first generator (1) through first solution heat exchanger (4), also have surplus heat respectively medium or drive thermal medium pipeline and external communications and refrigerant vapour passage and external communications are arranged of first generator (1), first absorber (2) also has heated medium pipeline and external communications respectively and refrigerant vapour passage and the formed generation-absorption system of external communications is arranged, introduce second generator (5), second absorber (6), intermediate heat exchanger (7), second solution pump (8), the 3rd solution pump (9) and second solution heat exchanger (10), first generator (1) there is the solution pipeline through first solution pump (3), first solution heat exchanger (4) connection first absorber (2) changes first generator (1) into has the solution pipeline through first solution pump (3), first solution heat exchanger (4) is communicated with second generator (5), establish the solution pipeline through second solution pump (8) by second generator (5) again, second solution heat exchanger (10) is communicated with second absorber (6), second absorber (6) has the solution pipeline again through second solution heat exchanger (10), the 3rd solution pump (9) is communicated with absorber (2), intermediate heat exchanger (7) is communicated with second generator (5) and first absorber (2), second absorber (6) also has refrigerant vapour passage and external communications respectively and heated medium pipeline and external communications is arranged, and second generator (5) also has the refrigerant vapour passage with outside; The weak solution that waste heat medium or driving thermal medium heat first generator (1) discharges refrigerant vapour, the concentrated solution of first generator (1) enters second generator (5), first absorber (2) absorbs that a refrigerant vapour liberated heat part is used to satisfy the low temperature heat demand of heated medium and another part discharges refrigerant vapour through intermediate heat exchanger (7) heating from the solution that first generator (1) enters second generator (5), and the concentrated solution of second generator (5) enters second absorber (6), absorb refrigerant vapour and emit the elevated temperature heat demand that heat is used to satisfy heated medium; When selecting no heated medium pipeline of first absorber (2) and external communications, the heat that first absorber (2) absorption refrigerant vapour is emitted only is used as the driving heat of second generator (5).

2. back-heating type generation-absorption system mainly is made up of first generator, first absorber, second absorber, second generator, intermediate heat exchanger, first solution pump, second solution pump, first solution heat exchanger and second solution heat exchanger; There is the solution pipeline to be communicated with first absorber (2) at what be applied to second class absorption heat pump by first generator (1) through first solution pump (3) and first solution heat exchanger (4), first absorber (2) also has the solution pipeline to be communicated with first generator (1) through first solution heat exchanger (4), also have surplus heat respectively medium or drive thermal medium pipeline and external communications and have the refrigerant vapour passage to be communicated with of first generator (1) with condensate component, first absorber (2) also has heated medium pipeline and external communications respectively and has the refrigerant vapour passage to be communicated with formed generation-absorption system with the refrigerant vapour production part, introduce second generator (5), second absorber (6), intermediate heat exchanger (7), second solution pump (8) and second solution heat exchanger (10), second generator (5) has the solution pipeline to be communicated with second absorber (6) through second solution pump (8) and second solution heat exchanger (10), second absorber (6) also has the solution pipeline to be communicated with second generator (5) through second solution heat exchanger (10), intermediate heat exchanger (7) is communicated with second generator (5) and first absorber (2), second absorber (6) also has refrigerant vapour passage and external communications respectively and heated medium pipeline and external communications is arranged, and second generator (5) also has the refrigerant vapour passage with outside; The waste heat medium or drive weak solution that thermal medium heats first generator (1) and discharge refrigerant vapour after concentrated solution enter first absorber (2), first absorber (2) absorbs that a refrigerant vapour liberated heat part is used to satisfy the low temperature heat demand of heated medium and another part discharges refrigerant vapour through intermediate heat exchanger (7) heating from the solution that second absorber (6) enters second generator (5), and concentrated solution enters second absorber (6) and absorbs refrigerant vapour and emit the elevated temperature heat demand that heat is used to satisfy heated medium; When selecting no heated medium pipeline of first absorber (2) and external communications, the heat that first absorber (2) absorption refrigerant vapour is emitted only is used as the driving heat of second generator (5).

3. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, with the waste heat medium is the driving thermal medium of first generator (1), increase condenser (A1), evaporimeter (B1) and cryogen liquid pump (C1), having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (A1), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (A1), condenser (A1) also has the cryogen liquid pipeline to be communicated with evaporimeter (B1) through cryogen liquid pump (C1), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (B1) first absorber (2) has the refrigerant vapour passage to be communicated with first absorber (2), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (B1) second absorber (6) has the refrigerant vapour passage to be communicated with first absorber (2), condenser (A1) also has cooling medium pipeline and external communications, evaporimeter (B1) also have surplus heat medium pipeline and external communications.

4. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, with the waste heat medium is the driving thermal medium of generator (1), increase condenser (A2), evaporimeter (B2), absorption-evaporimeter (C2), cryogen liquid pump (D2), choke valve (E2) and the 3rd solution heat exchanger (F2), changing first absorber (2) into first absorber (2) through first solution heat exchanger (4) connection first generator (1) has the solution pipeline to be communicated with absorption-evaporimeter (C2) through the 3rd solution heat exchanger (F2), absorption-evaporimeter (C2) has the solution pipeline to be communicated with generator (1) through first solution heat exchanger (4) again, first generator (1) there is the solution pipeline through first solution pump (3), first solution heat exchanger (4) connection second generator (5) or first absorber (2) change first generator (1) into has the solution pipeline through first solution pump (3), be communicated with second generator (5) or first absorber (2) through the 3rd solution heat exchanger (F2) again behind first solution heat exchanger (4), having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (A2), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (A2), having refrigerant vapour passage and external communications to be adjusted into condenser (A2) respectively first absorber (2) and second absorber (6) has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) more respectively with absorption-evaporimeter (C2) after absorption-evaporimeter (C2) is communicated with through cryogen liquid pump (D2), condenser (A2) also has the cryogen liquid pipeline to be communicated with evaporimeter (B2) through choke valve (E2) behind cryogen liquid pump (D2) again, evaporimeter (B2) also has the refrigerant vapour passage to be communicated with absorption-evaporimeter (C2), condenser (A2) also has cooling medium pipeline and external communications, evaporimeter (B2) also have surplus heat medium pipeline and external communications.

5. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, with the waste heat medium is the driving thermal medium of generator (1), increase condenser (A2), evaporimeter (B2), absorption-evaporimeter (C2), the first cryogen liquid pump (D2), the 3rd solution heat exchanger (F2) and the second cryogen liquid pump (G2), changing first absorber (2) into first absorber (2) through first solution heat exchanger (4) connection first generator (1) has the solution pipeline to be communicated with absorption-evaporimeter (C2) through the 3rd solution heat exchanger (F2), absorption-evaporimeter (C2) has the solution pipeline to be communicated with generator (1) through first solution heat exchanger (4) again, first generator (1) there is the solution pipeline through first solution pump (3), first solution heat exchanger (4) connection second generator (5) or first absorber (2) change first generator (1) into has the solution pipeline through first solution pump (3), be communicated with second generator (5) or first absorber (2) through the 3rd solution heat exchanger (F2) again behind first solution heat exchanger (4), having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (A2), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (A2), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (B2) respectively first absorber (2) and second absorber (6) has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) more respectively with absorption-evaporimeter (C2) after absorption-evaporimeter (C2) is communicated with through the second cryogen liquid pump (G2), condenser (A2) also has the cryogen liquid pipeline to be communicated with evaporimeter (B2) through the first cryogen liquid pump (D2), evaporimeter (B2) also has the refrigerant vapour passage to be communicated with absorption-evaporimeter (C2), condenser (A2) also has cooling medium pipeline and external communications, evaporimeter (B2) also have surplus heat medium pipeline and external communications.

6. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, increase condenser (A3), evaporimeter (B3), one-level absorption-evaporimeter (C3), secondary absorption-evaporimeter (D3), cryogen liquid pump (E3), first throttle valve (F3), second choke valve (G3), the 3rd solution heat exchanger (H3) and the 4th solution heat exchanger (I3), having the solution pipeline to change first absorber (2) into through first solution heat exchanger (4) connection generator (1) first absorber (2) has the solution pipeline to be communicated with secondary absorption-evaporimeter (D3) through the 3rd solution heat exchanger (H3), secondary absorption-evaporimeter (D3) also has the solution pipeline to have the solution pipeline to be communicated with generator (1) through first solution heat exchanger (4) again through the 4th solution heat exchanger (I3) and one-level absorption-evaporimeter (C3) connected sum one-level absorption-evaporimeter (C3), again first generator (1) there is the solution pipeline through first solution pump (3), first solution heat exchanger (4) connection second generator (5) or first absorber (2) change first generator (1) into has the solution pipeline through first solution pump (3), behind first solution heat exchanger (4) again through the 4th solution heat exchanger (I3), the 3rd solution heat exchanger (H3) is communicated with second generator (5) or first absorber (2), having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (A3), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (A3), having refrigerant vapour passage and external communications to be adjusted into condenser (A3) respectively first absorber (2) and second absorber (6) has the cryogen liquid pipeline directly to have the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) more respectively with secondary absorption-evaporimeter (D3) after secondary absorption-evaporimeter (D3) is communicated with through cryogen liquid pump (E3), condenser (A3) also has the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with secondary absorption-evaporimeter (D3) through second choke valve (G3) again with one-level absorption-evaporimeter (C3) after one-level absorption-evaporimeter (C3) is communicated with again through distinguishing cryogen liquid pump (E3) after through first throttle valve (F3) and evaporimeter (B3) connected sum again, evaporimeter (B3) also has the refrigerant vapour passage to be communicated with one-level absorption-evaporimeter (C3), condenser (A3) also has cooling medium pipeline and external communications, evaporimeter (B3) also have surplus heat medium pipeline and external communications.

7. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, increase condenser (A3), evaporimeter (B3), one-level absorption-evaporimeter (C3), secondary absorption-evaporimeter (D3), the first cryogen liquid pump (E3), the second cryogen liquid pump (J3), the 3rd cryogen liquid pump (K3), the 3rd solution heat exchanger (H3) and the 4th solution heat exchanger (I3), having the solution pipeline to change first absorber (2) into through first solution heat exchanger (4) connection generator (1) first absorber (2) has the solution pipeline to be communicated with secondary absorption-evaporimeter (D3) through the 3rd solution heat exchanger (H3), secondary absorption-evaporimeter (D3) also has the solution pipeline to have the solution pipeline to be communicated with generator (1) through first solution heat exchanger (4) again through the 4th solution heat exchanger (I3) and one-level absorption-evaporimeter (C3) connected sum one-level absorption-evaporimeter (C3), again first generator (1) there is the solution pipeline through first solution pump (3), first solution heat exchanger (4) connection second generator (5) or first absorber (2) change first generator (1) into has the solution pipeline through first solution pump (3), behind first solution heat exchanger (4) again through the 4th solution heat exchanger (I3), the 3rd solution heat exchanger (H3) is communicated with second generator (5) or first absorber (2), having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (A3), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (A3), there are refrigerant vapour passage and external communications to be adjusted into evaporimeter (B3) respectively first absorber (2) and second absorber (6) and the cryogen liquid pipeline arranged through the second cryogen liquid pump (J3), there is the refrigerant vapour passage to be communicated with through the 3rd cryogen liquid pump (K3) more respectively with secondary absorption-evaporimeter (D3) after secondary absorption-evaporimeter (D3) is communicated with again with first absorber (2) and second absorber (6), condenser (A3) also has the cryogen liquid pipeline to be communicated with evaporimeter (B3) through the first cryogen liquid pump (E3), evaporimeter (B3) also has the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with secondary absorption-evaporimeter (D3) through the second cryogen liquid pump (J3) again with one-level absorption-evaporimeter (C3) after one-level absorption-evaporimeter (C3) is communicated with, evaporimeter (B3) also has the refrigerant vapour passage to be communicated with one-level absorption-evaporimeter (C3), condenser (A3) also has cooling medium pipeline and external communications, evaporimeter (B3) also have surplus heat medium pipeline and external communications.

8. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, increase condenser (A4), evaporimeter (B4), absorption-evaporimeter (C4), cryogen liquid pump (D4), first throttle valve (E4), cryogenerator (F4), the 4th solution pump (G4), second choke valve (H4) and the 3rd solution heat exchanger (I4), having the solution pipeline to change first absorber (2) into through first solution heat exchanger (4) connection first generator (1) first absorber (2) has the solution pipeline to be communicated with absorption-evaporimeter (C4) through first solution heat exchanger (4), absorption-evaporimeter (C4) has the solution pipeline to also have the solution pipeline through the 4th solution pump (G4) through the 3rd solution heat exchanger (I4) connection cryogenerator (F4) and cryogenerator (F4) again, the 3rd solution heat exchanger (I4) is communicated with first generator (1), having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (A4), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (A4), first absorber (2) and second absorber (6) there are refrigerant vapour passage and external communications respectively, first generator (1) has and drives thermal medium pipeline and external communications and be adjusted into condenser (A4) and have the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with first absorber (2) respectively through cryogen liquid pump (D4) again with absorption-evaporimeter (C4) after absorption-evaporimeter (C4) is communicated with, being communicated with back first generator (1) with first generator (1) with second absorber (6) connected sum has the cryogen liquid pipeline to be communicated with condenser (A4) through first throttle valve (E4) again, condenser (A4) also has the cryogen liquid pipeline to be communicated with evaporimeter (B4) through second choke valve (H4) behind cryogen liquid pump (D4) again, evaporimeter (B4) also has the refrigerant vapour passage to be communicated with absorption-evaporimeter (C4), condenser (A4) also has cooling medium pipeline and external communications, evaporimeter (B4) also have surplus heat medium pipeline and external communications.

9. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, increase condenser (A4), evaporimeter (B4), absorption-evaporimeter (C4), the first cryogen liquid pump (D4), choke valve (E4), cryogenerator (F4), the 4th solution pump (G4), the 3rd solution heat exchanger (I4) and the second cryogen liquid pump (J4), having the solution pipeline to change first absorber (2) into through first solution heat exchanger (4) connection first generator (1) first absorber (2) has the solution pipeline to be communicated with absorption-evaporimeter (C4) through first solution heat exchanger (4), absorption-evaporimeter (C4) has the solution pipeline to also have the solution pipeline through the 4th solution pump (G4) through the 3rd solution heat exchanger (I4) connection cryogenerator (F4) and cryogenerator (F4) again, the 3rd solution heat exchanger (I4) is communicated with first generator (1), having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (A4), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (A4), first absorber (2) and second absorber (6) there are refrigerant vapour passage and external communications respectively, first generator (1) has and drives thermal medium pipeline and external communications and be adjusted into evaporimeter (B4) and have the cryogen liquid pipeline to have the refrigerant vapour passage to be communicated with first absorber (2) respectively through the second cryogen liquid pump (J4) again with absorption-evaporimeter (C4) after absorption-evaporimeter (C4) is communicated with, being communicated with back first generator (1) with first generator (1) with second absorber (6) connected sum has the cryogen liquid pipeline to be communicated with condenser (A4) through choke valve (E4) again, condenser (A4) also has the cryogen liquid pipeline to be communicated with evaporimeter (B4) through the first cryogen liquid pump (D4), evaporimeter (B4) also has the refrigerant vapour passage to be communicated with absorption-evaporimeter (C4), condenser (A4) also has cooling medium pipeline and external communications, evaporimeter (B4) also have surplus heat medium pipeline and external communications.

10. based on second class absorption heat pump of back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, increase the 3rd generator (A5), condenser (B5), evaporimeter (C5), the 4th solution pump (D5), choke valve (E5) and cryogen liquid pump (F5), having the solution pipeline to change first absorber (2) into through first solution heat exchanger (4) connection first generator (1) first absorber (2) has the solution pipeline to be communicated with the 3rd generator (A5) through first solution heat exchanger (4), the 3rd generator (A5) has the solution pipeline to be communicated with first generator (1) through the 4th solution pump (D5) again, with first generator (1) have refrigerant vapour passage and external communications be adjusted into first generator (1) have the refrigerant vapour passage be communicated with the 3rd generator (A5) back the 3rd generator (A5) have the cryogen liquid pipeline to be communicated with condenser (B5) again through choke valve (E5), the 3rd generator (A5) also has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (C5) respectively first absorber (2) and second absorber (6) has the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) respectively, condenser (B5) also has the cryogen liquid pipeline to be communicated with evaporimeter (C5) through cryogen liquid pump (F5), condenser (B5) also has cooling medium pipeline and external communications, evaporimeter (B5) also have surplus heat medium pipeline and external communications.

11. second class absorption heat pump based on back-heating type generation-absorption system, be in the described back-heating type generation-absorption system of claim 1, increase the 3rd generator (A5), condenser (B5), evaporimeter (C5), the 4th solution pump (D5), choke valve (E5), cryogen liquid pump (F5) and the 5th solution pump (G5), having the solution pipeline to change first absorber (2) into through first solution heat exchanger (4) connection first generator (1) first absorber (2) has the solution pipeline to be communicated with the 3rd generator (A5) through first solution heat exchanger (4), the 3rd generator (A5) has the solution pipeline to be communicated with first generator (1) through the 4th solution pump (D5) again, first generator (1) there is the solution pipeline through first solution pump (3), first solution heat exchanger (4) is communicated with second generator (5) and is adjusted into first generator (1) and the solution pipeline is arranged through first solution pump (3), first solution heat exchanger (4) is communicated with first absorber (2), setting up the solution pipeline by the 3rd generator (A5) is communicated with second generator (5) through the 5th solution pump (G5), with first generator (1) have refrigerant vapour passage and external communications be adjusted into first generator (1) have the refrigerant vapour passage be communicated with the 3rd generator (A5) back the 3rd generator (A5) have the cryogen liquid pipeline to be communicated with condenser (B5) again through choke valve (E5), the 3rd generator (A5) also has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (C5) respectively first absorber (2) and second absorber (6) has the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) respectively, condenser (B5) also has the cryogen liquid pipeline to be communicated with evaporimeter (C5) through cryogen liquid pump (F5), condenser (B5) also has cooling medium pipeline and external communications, evaporimeter (B5) also have surplus heat medium pipeline and external communications.

12. second class absorption heat pump based on back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, increase the 3rd generator (A5), condenser (B5), evaporimeter (C5), choke valve (E5), cryogen liquid pump (F5) and the 3rd solution heat exchanger (H5), first generator (1) there is the solution pipeline through first solution pump (3), first solution heat exchanger (4) is communicated with second generator (5) or first absorber (2) and is adjusted into first generator (1) and has the solution pipeline to be communicated with the 3rd generator (A5) through the 3rd solution heat exchanger (H5), the 3rd generator (A5) has the solution pipeline again through first solution pump (3), the 3rd solution heat exchanger (H5) and first solution heat exchanger (4) are communicated with second generator (5) or first absorber (2), with first generator (1) have refrigerant vapour passage and external communications be adjusted into first generator (1) have the refrigerant vapour passage be communicated with the 3rd generator (A5) back the 3rd generator (A5) have the cryogen liquid pipeline to be communicated with condenser (B5) again through choke valve (E5), the 3rd generator (A5) also has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (C5) respectively first absorber (2) and second absorber (6) has the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) respectively, condenser (B5) also has cooling medium pipeline and external communications, evaporimeter (B5) also have surplus heat medium pipeline and external communications.

13. second class absorption heat pump based on back-heating type generation-absorption system, be in claim 1 or the described back-heating type generation-absorption system of claim 2, increase the 3rd generator (A5), condenser (B5), evaporimeter (C5), the 4th solution pump (D5), choke valve (E5), cryogen liquid pump (F5) and the 3rd solution heat exchanger (H5), the 3rd generator (A5) has the solution pipeline through the 4th solution pump (D5), the 3rd solution heat exchanger (H5) is communicated with first absorber (2), first absorber (2) also has the solution pipeline to be communicated with the 3rd generator (A5) through the 3rd solution heat exchanger (H5), with first generator (1) have refrigerant vapour passage and external communications be adjusted into first generator (1) have the refrigerant vapour passage be communicated with the 3rd generator (A5) back the 3rd generator (A5) have the cryogen liquid pipeline to be communicated with condenser (B5) again through choke valve (E5), the 3rd generator (A5) also has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (C5) respectively first absorber (2) and second absorber (6) has the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) respectively, condenser (B5) also has cooling medium pipeline and external communications, evaporimeter (B5) also have surplus heat medium pipeline and external communications.

14. second class absorption heat pump based on back-heating type generation-absorption system, be in the described back-heating type generation-absorption system of claim 1, increase the 3rd generator (A5), condenser (B5), evaporimeter (C5), the 3rd solution pump (9), the 4th solution pump (D5), choke valve (E5), cryogen liquid pump (F5) and the 3rd solution heat exchanger (H5), the 3rd generator (A5) has the solution pipeline through the 4th solution pump (D5), the 3rd solution heat exchanger (H5) is communicated with first absorber (2), first absorber (2) also has the solution pipeline to be communicated with the 3rd generator (A5) through the 3rd solution heat exchanger (H5), with first generator (1) have drive thermal medium pipeline and external communications be adjusted into the 3rd generator (A5) have the refrigerant vapour passage to be communicated with afterwards with first generator (1) first generator (1) has the cryogen liquid pipeline to be communicated with condenser (B5) through choke valve (E5) again, having refrigerant vapour passage and external communications to be adjusted into first generator (1) in first generator (1) has the refrigerant vapour passage to be communicated with condenser (B5), the 3rd generator (A5) also have surplus heat medium pipeline and external communications, having refrigerant vapour passage and external communications to be adjusted into second generator (5) in second generator (5) has the refrigerant vapour passage to be communicated with condenser (B5), having refrigerant vapour passage and external communications to be adjusted into evaporimeter (C5) respectively first absorber (2) and second absorber (6) has the refrigerant vapour passage to be communicated with first absorber (2) and second absorber (6) respectively, condenser (B5) also has cooling medium pipeline and external communications, evaporimeter (B5) also have surplus heat medium pipeline and external communications.