CN101458006A - Method for enhancing first kind absorption heat pump heat supply temperature and high temperature heat pump - Google Patents

Method for enhancing first kind absorption heat pump heat supply temperature and high temperature heat pump Download PDF

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CN101458006A
CN101458006A CNA2009100136246A CN200910013624A CN101458006A CN 101458006 A CN101458006 A CN 101458006A CN A2009100136246 A CNA2009100136246 A CN A2009100136246A CN 200910013624 A CN200910013624 A CN 200910013624A CN 101458006 A CN101458006 A CN 101458006A
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solution
generator
absorber
pipeline
evaporimeter
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CN101458006B (en
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李华玉
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

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Abstract

The invention provides a heat supply temperature improving method for a primal absorption heat pump and the high temperature heat pump thereof, belonging to the heat pump/refrigeration technical field. A second absorber, a second generator, a second solution pump and a second solution heat exchanger are introduced into a system which comprises a generator and an absorber. That the absorber is communicated with the generator is changed into that the absorber is communicated with the second absorber and then the second absorber is communicated with the generator. That the generator is communicated with the absorber is changed into that the generator is firstly communicated with the second generator and then the second generator is communicated with the absorber. The second generator and a cryogen steam pipeline are communicated with the second absorber. The second absorber and a heated medium pipeline are communicated with the outside. The second generator and a driving heat medium pipeline are communicated with the outside. When the second generator is not provided and a throttle valve is provided, the cryogen steam pipeline is added by the generator and is communicated with the second absorber through the throttle valve. The generator is communicated with the second absorber through the second solution heat exchanger. A new unit which has the advantages of simple structure, high heat supplying temperature and wide range can be formed, and temperature requirements for cooling medium and driving heat can be lowered during the refrigeration.

Description

A kind of method and high temperature heat pump that improves first kind absorption heat pump heat supply temperature
Technical field:
The invention belongs to low temperature exhaust heat and utilize absorption type heat pump.
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, promote heat pump heat supply temperature, utilize more that the residual heat resources of low temperature and the temperature requirement that reduces driving heat source are the main directions that people make great efforts when refrigeration.
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 methods such as heat supply flow process and carry out that different heat pump flowsheets is compound to obtain more careful effect number and progression, their correspondences corresponding performance index.
From the unit internal process, the solution concentration that the key that improves heat pump heat supply temperature is to improve the solution concentration of absorber outlet and reduces generator exports.The backheat principle is applied to the absorption-generating process of solution, and combine with the source pump of different effect numbers, different progression, can improve the heat supply temperature of corresponding unit and obtain more careful heat supply temperature and performance index relation---performance index random groups heat supply temperature has a variation stably.
Summary of the invention:
Main purpose of the present invention is that a kind of method that improves first kind absorption heat pump heat supply temperature at first is provided, and utilizing the different member of increase on the formed absorption-generation system of this method, obtains dissimilar high temperature modification first kind absorption heat pumps then.
A kind of method that improves first kind absorption heat pump heat supply temperature is such: have the solution pipeline to be communicated with generator through solution pump with solution heat exchanger at what be applied to first kind absorption heat pump by absorber, generator has the solution pipeline to be communicated with absorber through solution heat exchanger, absorber also has heated medium pipeline and external communications respectively and has the refrigerant vapour pipeline to be communicated with the refrigerant vapour production part, generator also has respectively and drives thermal medium pipeline and external communications and have the refrigerant vapour pipeline to be communicated with formed combination with condensate component, introduce second absorber, second generator, second solution pump, second solution heat exchanger, the absorption-generation system of backheat heat supply end in the middle of formation has---absorber there is the solution pipeline through solution pump, solution heat exchanger connection generator changes absorber into has the solution pipeline through solution pump, solution heat exchanger is established the solution pipeline through second solution pump by second absorber after being communicated with second absorber again, second solution heat exchanger is communicated with generator, having the solution pipeline to change generator into through solution heat exchanger connection absorber in generator has solution pipeline second generator after second solution heat exchanger is communicated with second generator to have the solution pipeline to be communicated with absorber through solution heat exchanger again, second generator also has refrigerant vapour pipeline connection second absorber, absorber has refrigerant vapour pipeline and refrigerant vapour to produce system connectivity and heated medium pipeline and external communications is arranged, second absorber also has heated medium pipeline and external communications, generator, second generator also has the thermal medium pipeline of driving and external communications respectively; Do not have second generator and when introducing the refrigerant vapour pressure regulator valve, generator is communicated with absorber through second solution heat exchanger, solution heat exchanger, generator has the refrigerant vapour pipeline to be communicated with second absorber through the refrigerant vapour pressure regulator valve; Or concentrated solution enters second generator after driving weak solution that thermal medium adds heater and discharging refrigerant vapour, driving solution that thermal medium heats second generator discharges refrigerant vapour and provides to second absorber, concentrated solution enters absorber through solution heat exchanger and absorbs the refrigerant vapour heat release in heated medium, or drive weak solution that thermal medium adds heater discharge refrigerant vapour and wherein a part provide to second absorber, concentrated solution enters absorber and absorbs the refrigerant vapour heat release in heated medium, weak solution enters second absorber and absorbs refrigerant vapour heat release from second generator in heated medium, and the weak solution that concentration further reduces enters generator discharges higher temperature under the heating that drives thermal medium refrigerant vapour and outwards provides.
Shown in Figure 1, the absorption-generation system of utilizing method of the present invention to form the carried out high-temperature heat supply that has middle backheat heat supply end is achieved in that
1. on the structure, the absorption-generation system of backheat heat supply end is by absorber in the middle of having, generator, solution pump, solution heat exchanger, second absorber, second generator, second solution pump, second solution heat exchanger is formed, absorber has the solution pipeline through solution pump, solution heat exchanger is communicated with second absorber, second absorber has the solution pipeline again through second solution pump, second solution heat exchanger is communicated with generator, generator has the solution pipeline to be communicated with second generator through second solution heat exchanger again, second generator also has the solution pipeline to be communicated with absorber through solution heat exchanger, absorber also has refrigerant vapour pipeline and heated medium pipeline and external communications respectively, second absorber also has heated medium pipeline and external communications, second generator also has refrigerant vapour pipeline connection second absorber and the thermal medium pipeline of driving and external communications is arranged, and generator also has the refrigerant vapour pipeline respectively and drives thermal medium pipeline and external communications.
Change an angle, the absorption-generation system that embodies the carried out high-temperature heat supply that has middle backheat heat supply end of flesh and blood of the present invention also can be to form like this:
There is the solution pipeline to be communicated with generator with solution heat exchanger at what be applied to first kind absorption heat pump by absorber through solution pump, generator has the solution pipeline to be communicated with absorber through solution heat exchanger, absorber also has heated medium pipeline and external communications respectively and has the refrigerant vapour pipeline to be communicated with the refrigerant vapour production part, generator also has respectively and drives thermal medium pipeline and external communications and have the refrigerant vapour pipeline to be communicated with formed absorption-generation system with condensate component, introduce second absorber, second generator, second solution pump, second solution heat exchanger, the absorption-generation system of backheat heat supply end in the middle of formation has---absorber there is the solution pipeline through solution pump, solution heat exchanger connection generator changes absorber into has the solution pipeline through solution pump, solution heat exchanger is established the solution pipeline through second solution pump by second absorber after being communicated with second absorber again, second solution heat exchanger is communicated with generator, having the solution pipeline to change generator into through solution heat exchanger connection absorber in generator has solution pipeline second generator after second solution heat exchanger is communicated with second generator to have the solution pipeline to be communicated with absorber through solution heat exchanger again, second generator also has refrigerant vapour pipeline connection second absorber, absorber has refrigerant vapour pipeline and refrigerant vapour to produce system connectivity and heated medium pipeline and external communications is arranged, second absorber also has heated medium pipeline and external communications, generator, second generator also has the thermal medium pipeline of driving and external communications respectively.
2. on the flow process, refrigerant vapour enters absorber 1 and is absorbed also heat release in heated medium by the concentrated solution from second generator 6, weak solution enters second absorber 5 behind solution pump 3 and solution heat exchanger 4, absorption from the refrigerant vapour of second generator 6 and heat release in heated medium, the solution that concentration further reduces enters generator 2 behind second solution pump 7 and second solution heat exchanger 8, discharging the high temperature refrigerant vapour under the heating that drives thermal medium externally provides, concentrated solution enters second generator 6 through second solution heat exchanger 8, discharging refrigerant vapour under the heating that drives thermal medium provides to second absorber 5, and the solution after concentration further improves enters absorber 1.
Introduce second generator and second absorber and provide refrigerant vapour to second absorber by second generator, refrigerant vapour is absorbed by solution in second absorber, this belongs to working medium---refrigerant vapour---heat release be used to the satisfy working medium heat absorption of---solution---, be the backheat means; Second absorber then is the backheat heat supply end, and the formed new absorption-generation system of the present invention is the absorption-generation system that has the backheat heat supply end.
When absorber outlet solution concentration is constant, after adopting the backheat means, the solution concentration that enters generator reduces, then the concentration of generator exports reduces under same concentration difference, the refrigerant vapour temperature of its generation improves, the condenser of unit provides the heat of higher temperature, and unit can improve De Genggao with the temperature of heated medium; When the generator exports solution concentration is constant, after adopting the backheat means, the solution concentration that enters absorber improves, then the concentration of absorber outlet improves under same concentration difference, its refrigerant vapour that absorbs same parameter can produce the heat of higher temperature, the absorber that is unit can provide the heat of higher temperature maybe can utilize the more refrigerant vapour of low parameter---the corresponding more residual heat resources of low temperature, and unit can heat the higher heated medium of initial temperature; Obviously, adopt the backheat means can reduce the exit concentration of generator and the exit concentration of raising absorber simultaneously.In addition, adopt after the backheat generator to bear the load that offers heated medium and reduce, the then required refrigerant vapour quantity that outwards provides reduces, and this will make the concentration difference reduction of turnover generator under the same flow.Therefore, based on the absorption-generation system that has the backheat heat supply end, be high temperature heat pump in conjunction with the formed various concrete first kind absorption heat pumps of other parts; The amplitude of the temperature increase of thermic load that heat pump provides is corresponding with the backheat payload.
Form with method provided by the invention have in the middle of on the absorption-generation system of backheat heat supply end in conjunction with associated components the high temperature modification first kind absorption heat pump on the resulting single-stage heat pump basis, also can be regarded as the result who the absorption-generation system of backheat heat supply end in the middle of having has been replaced absorption-generation system in the single-stage heat pump, this also is the origin of saying on " on the single-stage heat pump basis ".
When being used to freeze, can reduce to drive thermal medium temperature requirement---this can improve the afterheat utilization rate when utilizing utilizing waste heat for refrigeration, or reduce temperature requirement, or can produce lower temperature range cooling medium (being heated medium).
Utilizing on the formed absorption-generation system of this method increases different members and obtains dissimilar high temperature modification first kind absorption heat pumps and be achieved in that
The method of utilizing above-mentioned raising first kind absorption heat pump heat supply temperature is formed have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser, evaporimeter and choke valve, condenser has refrigerant vapour pipeline connection generator and has the cryogen liquid pipeline to be communicated with evaporimeter through choke valve, evaporimeter has refrigerant vapour pipeline connection absorber, condenser also has heated medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications; Absorber, second absorber and condenser provide the heat demand of different temperatures scope respectively to heated medium, have the high temperature modification first kind absorption heat pump of backheat heat supply end on the single-stage heat pump basis that obtains being made up of absorber, generator, solution pump, solution heat exchanger, condenser, evaporimeter and choke valve.
The method of utilizing above-mentioned raising first kind absorption heat pump heat supply temperature is formed have in the middle of on the absorption-generation system of backheat heat supply end, 1. increase condenser, evaporimeter, choke valve, the 3rd generator, second choke valve, the 3rd choke valve and the 3rd solution heat exchanger; When the 3rd generator is used as high pressure generator, draw the solution pipeline from solution pump and be communicated with the 3rd generator through the 3rd solution heat exchanger, the 3rd generator also has the solution pipeline to be communicated with absorber through the 3rd solution heat exchanger, the 3rd generator also has refrigerant vapour pipeline connection generator, generator also to have the cryogen liquid pipeline to be communicated with condenser through second choke valve again, and second generator had the cryogen liquid pipeline to be communicated with evaporimeter through the 3rd choke valve again after the 3rd generator also had refrigerant vapour pipeline connection second generator again when adopting second generator; When the 3rd generator is used as low pressure generator, draw the solution pipeline from solution pump and be communicated with the 3rd generator through the 3rd solution heat exchanger, the 3rd generator also has the solution pipeline to be communicated with absorber through the 3rd solution heat exchanger, the 3rd generator had the cryogen liquid pipeline to be communicated with condenser through second choke valve again after generator had refrigerant vapour pipeline connection the 3rd generator, and the 3rd generator also has refrigerant vapour pipeline connection condenser; Condenser has refrigerant vapour pipeline connection generator and has the cryogen liquid pipeline to be communicated with evaporimeter through choke valve, evaporimeter has refrigerant vapour pipeline connection absorber, condenser also has heated medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications; Absorber, second absorber and condenser provide the heat demand of different temperatures scope respectively to heated medium, have the high temperature modification first kind absorption heat pump of backheat heat supply end on the single-stage double-effect heat pump basis that obtains forming, adopt solution in parallel to circulate by absorber, generator, solution pump, solution heat exchanger, condenser, evaporimeter, choke valve, second choke valve and second solution heat exchanger; When 2. increasing by the 3rd solution pump again, second absorber there is the solution pipeline through second solution pump, second solution heat exchanger connection generator changes second absorber into has the solution pipeline through second solution pump, the 3rd generator had the solution pipeline through the 3rd solution heat exchanger after second solution heat exchanger and the 3rd solution heat exchanger were communicated with the 3rd generator, the 3rd solution pump is communicated with generator, generator also has refrigerant vapour pipeline connection the 3rd generator and the 3rd generator to have the cryogen liquid pipeline to be communicated with condenser through second choke valve again, condenser has refrigerant vapour pipeline connection the 3rd generator and has the cryogen liquid pipeline to be communicated with evaporimeter through choke valve, evaporimeter has refrigerant vapour pipeline connection absorber, condenser also has heated medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications obtain by absorber, generator, solution pump, solution heat exchanger, condenser, evaporimeter, choke valve, the 3rd generator, second choke valve, second solution heat exchanger and the 3rd solution pump are formed, the high temperature modification first kind absorption heat pump that has the backheat heat supply end on the single-stage double-effect heat pump basis of adopting series connection solution to circulate.
The method of utilizing above-mentioned raising first kind absorption heat pump heat supply temperature is formed have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser, evaporimeter, absorption-evaporimeter, choke valve, second choke valve or cryogen liquid pump and the 3rd solution heat exchanger, absorber there is the solution pipeline through solution pump, solution heat exchanger is communicated with second absorber and changes absorber into and have solution pipeline absorption-evaporimeter after the 3rd solution heat exchanger is communicated with absorption-evaporimeter the solution pipeline to be arranged through solution pump again, the 3rd solution heat exchanger and solution heat exchanger are communicated with second absorber, generator has refrigerant vapour pipeline connection condenser, condenser has the cryogen liquid pipeline to be communicated with evaporimeter through choke valve, or condenser also has cryogen liquid pipeline absorption-evaporimeter after second choke valve is communicated with absorption-evaporimeter that refrigerant vapour pipeline connection absorber is arranged again, or evaporimeter has cryogen liquid pipeline absorption-evaporimeter after the cryogen liquid pump is communicated with absorption-evaporimeter that refrigerant vapour pipeline connection absorber is arranged again, evaporimeter also has refrigerant vapour pipeline connection absorption-evaporimeter, condenser also has heated medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications, absorber, second absorber and condenser provide the heat demand of different temperatures scope respectively to heated medium, obtain by absorber, generator, solution pump, solution heat exchanger, condenser, evaporimeter, absorption-evaporimeter, choke valve, second choke valve and the 3rd solution heat exchanger are formed, the high temperature modification first kind absorption heat pump that has the backheat heat supply end on the one generator type two levels of thermal pump foundation of refrigerant vapour is provided to absorber by absorption-evaporimeter.
The method of utilizing above-mentioned raising first kind absorption heat pump heat supply temperature is formed have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser, evaporimeter, absorption-evaporimeter, low pressure generator, choke valve, second choke valve or cryogen liquid pump, the 3rd solution pump and the 3rd solution heat exchanger, generator has refrigerant vapour pipeline connection condenser, condenser has the cryogen liquid pipeline to be communicated with evaporimeter through choke valve, condenser also has cryogen liquid pipeline absorption-evaporimeter after second choke valve is communicated with absorption-evaporimeter that refrigerant vapour pipeline connection absorber is arranged again, evaporimeter also has refrigerant vapour pipeline connection absorption-evaporimeter, low pressure generator also has the solution pipeline solution pipeline to be arranged again through the 3rd solution pump through the 3rd solution heat exchanger connection absorption-evaporimeter and absorption-evaporimeter, the 3rd solution heat exchanger is communicated with low pressure generator, low pressure generator has refrigerant vapour pipeline connection absorber and the thermal medium pipeline of driving and external communications is arranged, condenser also has heated medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications, absorber, second absorber and condenser provide the heat demand of different temperatures scope respectively to heated medium, obtain by absorber, generator, solution pump, solution heat exchanger, condenser, evaporimeter, absorption-evaporimeter, low pressure generator, choke valve, second choke valve, the 3rd solution pump and the 3rd solution heat exchanger are formed, the high temperature modification first kind absorption heat pump that on absorber provides the dual occurrence type two levels of thermal pump foundation of refrigerant vapour, has the backheat heat supply end by absorption-evaporimeter and low pressure generator jointly.
The method of utilizing above-mentioned raising first kind absorption heat pump heat supply temperature is formed have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser, evaporimeter, low-pressure absorber, low pressure generator, choke valve, the 3rd solution pump and the 3rd solution heat exchanger, generator has refrigerant vapour pipeline connection condenser, condenser has the cryogen liquid pipeline to be communicated with evaporimeter through choke valve, evaporimeter also has refrigerant vapour pipeline connection low-pressure absorber, low-pressure absorber also has the solution pipeline through the 3rd solution pump, the 3rd solution heat exchanger is communicated with low pressure generator and low pressure generator has the solution pipeline to be communicated with low-pressure absorber through the 3rd solution heat exchanger, low pressure generator also has refrigerant vapour pipeline connection absorber and the thermal medium pipeline of driving and external communications is arranged, condenser and low-pressure absorber also have heated medium pipeline and external communications, evaporimeter also have surplus heat medium pipeline and external communications, low-pressure absorber, absorber, second absorber and condenser provide the heat demand of different temperatures scope respectively to heated medium, obtain by absorber, generator, solution pump, solution heat exchanger, condenser, evaporimeter, absorber, low pressure generator, choke valve, the 3rd solution pump and the 3rd solution heat exchanger are formed, the high temperature modification first kind absorption heat pump that has the backheat heat supply end on the dual occurrence type two levels of thermal pump foundation of refrigerant vapour is provided to absorber by low pressure generator.
6. by absorber, generator, solution pump, solution heat exchanger, condenser, have in the high temperature modification first kind absorption heat pump of backheat heat supply end on the single-stage heat pump basis that evaporimeter and choke valve are formed, increase by the 3rd absorber again, absorption-evaporimeter, the 3rd solution pump, second choke valve or cryogen liquid pump and the 3rd solution heat exchanger, second absorber there is the solution pipeline through second solution pump, second solution heat exchanger connection generator changes second absorber into has the solution pipeline through second solution pump, second solution heat exchanger is communicated with the 3rd absorber, the 3rd absorber has the solution pipeline solution pipeline to be arranged again through the 3rd solution pump through the 3rd solution heat exchanger connection absorption-evaporimeter and absorption-evaporimeter again, the 3rd solution heat exchanger is communicated with generator, evaporimeter also has refrigerant vapour pipeline connection absorption-evaporimeter, or set up the cryogen liquid pipeline by condenser and be communicated with absorption-evaporimeter and absorption-evaporimeter has refrigerant vapour pipeline connection the 3rd absorber again through second choke valve, or set up the cryogen liquid pipeline by evaporimeter and be communicated with absorption-evaporimeter and absorption-evaporimeter has refrigerant vapour pipeline connection the 3rd absorber again through the cryogen liquid pump, the 3rd absorber also has heated medium pipeline and external communications, obtains by absorber, generator, solution pump, solution heat exchanger, condenser, the high temperature modification first kind absorption heat pump that has backheat heat supply end and additional high-temperature heat supply end on the single-stage heat pump basis that evaporimeter and choke valve are formed.
7. by absorber, generator, solution pump, solution heat exchanger, condenser, have on the single-stage heat pump basis that evaporimeter and choke valve are formed in the high temperature modification first kind absorption heat pump of backheat heat supply end and additional high-temperature heat supply end, increase by second condenser again, the 3rd generator, the 3rd choke valve and solution control valve, to absorb-evaporimeter has the solution pipeline through the 3rd solution pump, the 3rd solution heat exchanger connection generator changes absorption-evaporimeter into has the solution pipeline through the 3rd solution pump, the 3rd solution heat exchanger is communicated with the 3rd generator and the 3rd generator has the solution pipeline to be communicated with generator through the solution control valve again, the 3rd generator drives thermal medium and external communications in addition and refrigerant vapour pipeline connection second condenser is arranged, second condenser also has the cryogen liquid pipeline to be communicated with evaporimeter and heated medium pipeline and external communications are arranged through the 3rd choke valve, obtains by absorber, generator, solution pump, solution heat exchanger, condenser, the high temperature modification first kind absorption heat pump that has backheat heat supply end and additional high temperature heat pump flow process on the single-stage heat pump basis that evaporimeter and choke valve are formed.
The present invention is from the core of source pump, and---absorbing and generation---sets about, provided the method that improves first kind absorption type heat pump assembly heat supply temperature, and utilize this method to obtain corresponding dissimilar first kind source pump high temperature heat pump in conjunction with associated components, enriched the type of heat pump, and the simplification that keeps set structure, realize the heat supply high temperatureization of unit and kept the superior performance index, realized the mutual coupling of heat pump heat supply and user's heat demand better.As seen, creative, novelty of the present invention and practicality.
Description of drawings:
Fig. 1, Fig. 2 are structure and the schematic flow sheets according to the absorption-generation system that has middle backheat heat supply end that method provided by the present invention constituted.Fig. 2 and different being shown in Figure 1 have not had second generator and have increased the refrigerant vapour pressure regulator valve among Fig. 2.
Fig. 3, Fig. 4 be according to method provided by the present invention form, based on the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of single-stage heat pump.
Fig. 5, Fig. 6 be with the present invention be used for low pressure absorption-generation side, based on the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of solution circulation double-effect heat pump in parallel.
Fig. 7, Fig. 8 be with the present invention be used for high pressure absorption-generation side, based on the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of solution circulation double-effect heat pump in parallel.
Fig. 9, Figure 10 be according to method provided by the present invention form, based on the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of solution series circulation double-effect heat pump.
Figure 11, Figure 12 form, provide the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of the one generator type two-stage heat pump of refrigerant vapour to absorber to adopt absorption-evaporimeter according to method provided by the present invention.
Figure 13, Figure 14 form, provide the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of the dual occurrence type two levels of thermal pump of refrigerant vapour jointly to absorber to adopt absorption-evaporimeter and low pressure generator according to method provided by the present invention.
Figure 15, Figure 16 form, provide the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of the dual occurrence type two levels of thermal pump of refrigerant vapour to absorber to adopt low pressure generator according to method provided by the present invention.
Figure 17, Figure 18 form, serve as the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of basis and additional high-temperature heat supply end with the single-stage heat pump according to method provided by the present invention.
Figure 19, Figure 20 form, serve as the high temperature modification first kind absorption type heat pump system structure and the schematic flow sheet of basis and additional high-temperature heat supply flow process with the single-stage heat pump according to method provided by the present invention.
Among the figure, 1-absorber, 2-generator, 3-solution pump, 4-solution heat exchanger, 5-the second absorber, 6-the second generator, 7-the second solution pump, 8-the second solution heat exchanger, 9-refrigerant vapour pressure regulator valve.
Among Fig. 3-Fig. 4, among Figure 17-Figure 20, A1-condenser, B1-evaporimeter, C1-choke valve, D1-the 3rd absorber, E1-absorption-evaporimeter, F1-the 3rd solution pump, G1-second choke valve, H1-the 3rd solution heat exchanger, I1-cryogen liquid pump, J1-second condenser, K1-the 3rd generator, L1-the 3rd choke valve, M1-solution control valve.
Among Fig. 5-Figure 10, A2-condenser, B2-evaporimeter, C2-choke valve, D2-the 3rd generator, E2-second choke valve, F2-the 3rd choke valve, G2-the 3rd solution heat exchanger, H2-the 3rd solution pump.
Among Figure 11-Figure 12, A3-condenser, B3-evaporimeter, C3-absorption-evaporimeter, D3-choke valve, E3-second choke valve, F3-the 3rd solution heat exchanger, G3-cryogen liquid pump.
Among Figure 13-Figure 14, A4-condenser, B4-evaporimeter, C4-absorption-evaporimeter, D4-low pressure generator, E4-choke valve, F4-second choke valve, G4-the 3rd solution pump, H4-the 3rd solution heat exchanger, I4-cryogen liquid pump.
Among Figure 15-Figure 16, A5-condenser, B5-evaporimeter, C5-high pressure absorber, D5-high pressure generator, E5-choke valve, F5-the 3rd solution pump, G5-the 3rd solution heat exchanger.
It is pointed out that refrigerant vapour pressure regulator valve, solution control valve and choke valve, they all play the effect that choke valve reduces, and adopt different titles to be mainly used to show their active position.
The specific embodiment:
Describe the present invention in detail below in conjunction with accompanying drawing and example.
As shown in Figure 1, the process of utilizing method provided by the present invention to constitute the absorption-generation system that has middle backheat heat supply end is such:
1. on the structure, the absorption-generation system of backheat heat supply end is by absorber 1 in the middle of having, generator 2, solution pump 3, solution heat exchanger 4, second absorber 5, second generator 6, second solution pump 7, second solution heat exchanger 8 is formed, absorber 1 has the solution pipeline through solution pump 3, solution heat exchanger 4 is communicated with second absorber 5, second absorber 5 has the solution pipeline again through second solution pump 7, second solution heat exchanger 8 is communicated with generator 2, generator 2 has the solution pipeline to be communicated with second generator 6 through second solution heat exchanger 8 again, second generator 6 also has the solution pipeline to be communicated with absorber 1 through solution heat exchanger 4, absorber 1 also has refrigerant vapour pipeline and heated medium pipeline and external communications respectively, second absorber 5 also has heated medium pipeline and external communications, second generator 6 also has refrigerant vapour pipeline connection second absorber 5 and the thermal medium pipeline of driving and external communications is arranged, and generator 2 also has the refrigerant vapour pipeline respectively and drives thermal medium pipeline and external communications.
2. on the flow process, refrigerant vapour enters absorber 1 and is absorbed also heat release in heated medium by the concentrated solution from second generator 6, weak solution enters second absorber 5 behind solution pump 3 and solution heat exchanger 4, absorption from the refrigerant vapour of second generator 6 and heat release in heated medium, the solution that concentration further reduces enters generator 2 behind second solution pump 7 and second solution heat exchanger 8, discharging the high temperature refrigerant vapour under the heating that drives thermal medium externally provides, concentrated solution enters second generator 6 through second solution heat exchanger 8, discharging refrigerant vapour under the heating that drives thermal medium provides to second absorber 5, and the solution after concentration further improves enters absorber 1.
Relatively there is the solution pipeline to be communicated with generator 2 with solution heat exchanger 4 through solution pump 3 by absorber 1, generator 2 has the solution pipeline to be communicated with absorber 1 through solution heat exchanger 4, absorber 1 also has heated medium pipeline and external communications respectively and has the refrigerant vapour pipeline to be communicated with the refrigerant vapour production part, generator 2 also has respectively and drives thermal medium pipeline and external communications and have the refrigerant vapour pipeline to be communicated with formed absorption-generation system with condensate component, in the absorption-generation system provided by the present invention, the refrigerant vapour of second generator 6 provides also to second absorber 5 and is absorbed also heat release in heated medium by the solution from absorber 1, then the weak solution of second absorber 5 enters generator 2 through second solution pump 7 and second solution heat exchanger 8 again, keeping generator 2 and absorber 1 to advance respectively like this, go out under the constant situation of solution concentration difference, the concentration of generator 2 outlets is advancing along with second generator 6 then, the increase of exit concentration difference and reducing that is to say that the temperature of the refrigerant vapour that generator 2 produces will increase along with the increase of the thermic load that exchanges between second generator 6 and second absorber 5; In like manner, when the initial temperature of heated medium is high, the exit concentration of absorber 1 needs to improve, adjust the thermic load of the exchange between second generator 6 and second absorber 5, the concentration of generator 2 import and export solution can constantly also can all reduce, corresponding the temperature-resistant or refrigerant vapour that improves; In a word, the absorption-generation system that these technical measures that absorb the solution that has adopted second generator 6 refrigerant vapour to be provided and to be entered absorber 5 to second absorber 5 have realized being applied to first kind absorption type heat pump system can produce higher heat supply temperature and maybe can utilize the more residual heat resources of low temperature, can reduce the temperature requirement to driving heat source when being used to freeze.
Shown in Figure 2 also is to utilize method provided by the present invention to constitute the absorption-generation system that has middle backheat heat supply end, and it is made up of absorber 1, generator 2, solution pump 3, solution heat exchanger 4, second absorber 5, second solution pump 7, second solution heat exchanger 8 and refrigerant vapour pressure regulator valve 9; Absorber 1 has the solution pipeline through solution pump 3, solution heat exchanger 4 is communicated with second absorber 5, second absorber 5 has the solution pipeline again through second solution pump 7, second solution heat exchanger 8 is communicated with second generator 2, second generator 2 has the solution pipeline to be communicated with absorber 1 through second solution heat exchanger 8 again, absorber 1 also has refrigerant vapour pipeline and heated medium pipeline and external communications respectively, second absorber 5 also has heated medium pipeline and external communications, generator 2 also has the refrigerant vapour pipeline to be communicated with second absorber 5 through refrigerant vapour pressure regulator valve 9, and generator 2 also has the refrigerant vapour pipeline respectively and drives thermal medium pipeline and external communications; Refrigerant vapour enters absorber 1 and is absorbed also heat release in heated medium by the concentrated solution from generator 2, weak solution enters second absorber 5 behind solution pump 3 and solution heat exchanger 4, absorb from the refrigerant vapour of generator 2 and heat release in heated medium, the solution that concentration further reduces is through entering generator 2, driving and discharge the high temperature refrigerant vapour under the heating of thermal medium and externally provide behind second solution pump 7 and second solution heat exchanger 8, concentrated solution enters absorber 1 through second solution heat exchanger 8; After the backheat, generator 2 is imported and exported the concentration difference reduction, the import solution concentration reduces, then the generator refrigerant vapour that will produce higher temperature externally provides, adopt the absorption-generation system of backheat technical measures to be applied to first kind absorption type heat pump system and then can produce higher heat supply temperature and maybe can utilize the more residual heat resources of low temperature, can reduce temperature requirement when being used to freeze driving heat source.
As shown in Figure 3, Figure 4, adopt the absorption-generation system that has middle backheat heat supply end to realize that the process of the high temperature modification first kind absorption heat pump on the single-stage heat pump basis is such:
1. on the structure,---corresponding diagram 3---the absorption-generation system that has middle backheat heat supply end shown in and Fig. 2---corresponding diagram 4---based on Fig. 1, increase condenser A1, evaporimeter B1 and choke valve C1, condenser A1 has refrigerant vapour pipeline connection generator 2 and has the cryogen liquid pipeline to be communicated with evaporimeter B1 through choke valve C1, evaporimeter B1 has refrigerant vapour pipeline connection absorber 1, condenser A1 also has heated medium pipeline and external communications, evaporimeter B1 also have surplus heat medium pipeline and external communications.
2. on the flow process, the refrigerant vapour that evaporimeter B1 produces provides to absorber 1, the refrigerant vapour that generator 2 produces to condenser A1 provide and heat release in the heated medium of flowing through in it, cryogen liquid enters evaporimeter B1 after choke valve C1 step-down cooling, become refrigerant vapour to enter absorber 1 after absorbing the heat release of the waste heat medium in it of flowing through; Absorber 1, second absorber 5 and condenser A1 provide the thermic load of different temperatures scope respectively to heated medium, it provides the temperature height of the temperature of thermic load than the single-stage thermic load of being made up of absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A1, evaporimeter B1 and choke valve C1 that heat pump provides, and what therefore obtain after increasing condenser A1, evaporimeter B1 and choke valve C1 on the absorption-generation system that has middle backheat heat supply end is the high temperature modification first kind absorption heat pump that increases the backheat heat supply end on the single-stage heat pump basis.
As Fig. 5, shown in Figure 6, it is such adopting the absorption-generation system that has middle backheat heat supply end, the process that realizes the high temperature modification first kind absorption heat pump on the solution circulation single-stage double-effect heat pump in parallel basis in low pressure absorption-generation side:
1. on the structure,---corresponding diagram 5---the absorption-generation system that has middle backheat heat supply end shown in and Fig. 2---corresponding diagram 6---based on Fig. 1, increase condenser A2, evaporimeter B2, choke valve C2, the 3rd generator D2, the second choke valve E2, the 3rd choke valve F2 and the 3rd solution heat exchanger G2, draw the solution pipeline from solution pump 3 and be communicated with the 3rd generator D2 through the 3rd solution heat exchanger G2, the 3rd generator D2 also has the solution pipeline to be communicated with absorber 1 through the 3rd solution heat exchanger G2, the 3rd generator D2 also has refrigerant vapour pipeline connection generator 2, generator 2 also has the cryogen liquid pipeline to be communicated with condenser A2 through the second choke valve E2 again, and the 3rd generator D2 also has refrigerant vapour pipeline connection second generator 6 backs second generator 6 to have the cryogen liquid pipeline to be communicated with evaporimeter B2 through the 3rd choke valve F2 more again when adopting second generator 6.
2. on the flow process, the refrigerant vapour that evaporimeter B2 produces provides to absorber 1, absorbed also heat release in heated medium by concentrated solution from absorption-generation system and the 3rd generator D2, absorber 1 provides weak solution to the 3rd generator D2, the 3rd generator D2 discharges the driving thermal medium of refrigerant vapour as the generator 2 and second generator 6 under the heating that drives thermal medium, become cryogen liquid to enter condenser A2 and evaporimeter B2 through the second choke valve E2 and the 3rd choke valve F2 respectively after the refrigerant vapour heat release, the refrigerant vapour that generator 2 produces to condenser A2 provide and heat release in the heated medium of flowing through in it, cryogen liquid enters evaporimeter B2 after choke valve C2 step-down cooling, absorption is flowed through and is become refrigerant vapour to enter absorber 1 after the heat release of the waste heat medium in it; Absorber 1, second absorber 5 and condenser A2 provide the thermic load of different temperatures scope respectively to heated medium, its temperature that thermic load is provided is by absorber 1, the 3rd generator D2, generator 2, condenser A2, evaporimeter B2, solution pump 3, choke valve C2, the second choke valve E2, the solution heat exchanger 4 and the second solution heat exchanger G2 form, adopt the temperature height of the single-stage thermic load that double-effect heat pump provides of solution circulation in parallel, therefore in the middle of having, increase condenser A2 on the absorption-generation system of backheat heat supply end, evaporimeter B2, choke valve C2, the 3rd generator D2, the second choke valve E2, behind the 3rd choke valve F2 and the 3rd solution heat exchanger G2, obtain the high temperature modification first kind absorption heat pump on the single-stage double-effect heat pump basis.
In like manner, utilize the absorption-generation system in the absorption-generation system replacement single-stage triple effect heat pump that has middle backheat heat supply end, can obtain increasing on the single-stage triple effect heat pump basis high temperature modification first kind absorption heat pump of backheat heat supply end.
As Fig. 7, shown in Figure 8, it is such adopting the absorption-generation system that has middle backheat heat supply end, the process that realizes the high temperature modification first kind absorption heat pump on the solution circulation single-stage double-effect heat pump in parallel basis in high pressure absorption-generation side:
1. on the structure,---corresponding diagram 7---the absorption-generation system that has middle backheat heat supply end shown in and Fig. 2---corresponding diagram 8---based on Fig. 1, increase condenser A2, evaporimeter B2, choke valve C2, the 3rd generator D2, the second choke valve E2, the 3rd choke valve F2 and the 3rd solution heat exchanger G2, draw the solution pipeline from solution pump 3 and be communicated with the 3rd generator D2 through the 3rd solution heat exchanger G2, the 3rd generator D2 also has the solution pipeline to be communicated with absorber 1 through the 3rd solution heat exchanger G2, the 3rd generator D2 had the cryogen liquid pipeline to be communicated with condenser A2 through the second choke valve E2 again after generator 2 had refrigerant vapour pipeline connection the 3rd generator D2, and the 3rd generator D2 also has refrigerant vapour pipeline connection condenser A2; Condenser A2 has the cryogen liquid pipeline to be communicated with evaporimeter B2 through choke valve C2, and evaporimeter B2 has refrigerant vapour pipeline connection absorber 1, and condenser A2 also has heated medium pipeline and external communications, evaporimeter (B2) also have surplus heat medium pipeline and external communications.
2. on the flow process, the refrigerant vapour that evaporimeter B2 produces provides to absorber 1, absorbed also heat release in heated medium by concentrated solution from absorption-generation system and the 3rd generator D2, absorber 1 provides weak solution to the 3rd generator D2, generator 2 provides refrigerant vapour as driving thermal medium to the 3rd generator D2, become cryogen liquid to enter condenser A2 after the refrigerant vapour heat release through the second choke valve E2, the refrigerant vapour that the 3rd generator D2 produces enters condenser A2, heat release is in heated medium, and cryogen liquid enters evaporimeter B2 after choke valve C2 step-down cooling, absorption is flowed through and is become refrigerant vapour to enter absorber 1 after the heat release of the waste heat medium in it; Absorber 1, second absorber 5 and condenser A2 provide the thermic load of different temperatures scope respectively to heated medium, its temperature that thermic load is provided is by absorber 1, the 3rd generator D2, generator 2, condenser A2, evaporimeter B2, solution pump 3, choke valve C2, the second choke valve E2, solution heat exchanger 4 and the 3rd solution heat exchanger G2 form, adopt the temperature height of the single-stage thermic load that double-effect heat pump provides of solution circulation in parallel, therefore in the middle of having, increase condenser A2 on the absorption-generation system of backheat heat supply end, evaporimeter B2, choke valve C2, the 3rd generator D2, the second choke valve E2, behind the 3rd choke valve F2 and the 3rd solution heat exchanger G2, obtain the high temperature modification first kind absorption heat pump on the single-stage double-effect heat pump basis.
As Fig. 9, shown in Figure 10, it is such adopting the absorption-generation system of backheat heat supply end in the middle of having, the process of the high temperature modification first kind absorption heat pump on the realization series connection solution circulation single-stage double-effect heat pump basis:
1. on the structure,---corresponding diagram 9---the absorption-generation system that has middle backheat heat supply end shown in and Fig. 2---corresponding Figure 10---based on Fig. 1, increase condenser A2, evaporimeter B2, choke valve C2, the 3rd generator D2, the second choke valve E2, the 3rd choke valve F2, the 3rd solution heat exchanger G2 and the 3rd solution pump H2, second absorber 5 there is the solution pipeline through second solution pump 7, second solution heat exchanger, 8 connection generators 2 change second absorber 5 into has the solution pipeline through second solution pump 7, the 3rd generator D2 had the solution pipeline through the 3rd solution heat exchanger G2 after second solution heat exchanger 8 and the 3rd solution heat exchanger G2 were communicated with the 3rd generator D2, the 3rd solution pump H2 is communicated with generator 2, generator 2 also has refrigerant vapour pipeline connection the 3rd generator D2 and the 3rd generator D2 to have the cryogen liquid pipeline to be communicated with condenser A2 through the second choke valve E2 again, condenser A2 has refrigerant vapour pipeline connection the 3rd generator D2 and has the cryogen liquid pipeline to be communicated with evaporimeter B2 through choke valve C2, evaporimeter B2 has refrigerant vapour pipeline connection absorber 1, condenser A2 also has heated medium pipeline and external communications, evaporimeter B2 also have surplus heat medium pipeline and external communications.
2. on the flow process, the refrigerant vapour that evaporimeter B2 produces provides to absorber 1, second absorber 5 is by solution pump 7, second solution heat exchanger 8 and the 3rd solution heat exchanger G2 provide weak solution to the 3rd generator D2, generator 2 provides refrigerant vapour to drive thermal medium as it to the 3rd generator D2, become cryogen liquid to enter condenser A2 after the refrigerant vapour heat release through the second choke valve E2, the refrigerant vapour that the 3rd generator D2 produces enters condenser A2, heat release is in heated medium, and cryogen liquid enters evaporimeter B2 after choke valve C2 step-down cooling, absorption is flowed through and is become refrigerant vapour to enter absorber 1 after the heat release of the waste heat medium in it; Absorber 1, second absorber 5 and condenser A2 provide the thermic load of different temperatures scope respectively to heated medium, its temperature that thermic load is provided is by absorber 1, generator 2, the 3rd generator D2, condenser A2, evaporimeter B2, solution pump 3, choke valve C2, the second choke valve E2, the 3rd solution pump H2, the solution heat exchanger 4 and the second solution heat exchanger G2 form, adopt the temperature height of the single-stage thermic load that double-effect heat pump provides of series connection solution circulation, therefore in the middle of having, increase condenser A2 on the absorption-generation system of backheat heat supply end, evaporimeter B2, choke valve C2, the 3rd generator D2, the second choke valve E2, the 3rd choke valve F2, behind the 3rd solution heat exchanger G2 and the 3rd solution pump H2, obtain the high temperature modification first kind absorption heat pump on the single-stage double-effect heat pump basis.
As Figure 11, shown in Figure 12, adopt backheat heat supply end in the middle of having absorption-generation system, realize that it is such providing the process of the high temperature modification first kind absorption heat pump on the one generator type two levels of thermal pump foundation of refrigerant vapour to absorber by absorption-evaporimeter:
1. on the structure,---corresponding Figure 11---absorption-generation system that has middle backheat heat supply end shown in and Fig. 2---corresponding Figure 12---based on Fig. 1, increase condenser A3, evaporimeter B3, absorption-evaporimeter C3, choke valve D3, the second choke valve E3 or cryogen liquid pump G3 and the 3rd solution heat exchanger F3, absorber 1 there is the solution pipeline through solution pump 3, solution heat exchanger 4 connections second absorber 5 changes absorber 1 into has solution pipeline absorption-evaporimeter C3 after the 3rd solution heat exchanger F3 is communicated with absorption-evaporimeter C3 the solution pipeline to be arranged again through solution pump 3, the 3rd solution heat exchanger F3 and solution heat exchanger 4 are communicated with second absorber 5, generator 2 has refrigerant vapour pipeline connection condenser A3, condenser A3 has the cryogen liquid pipeline to be communicated with evaporimeter B3 through choke valve D3, or condenser A3 also has cryogen liquid pipeline absorption-evaporimeter C3 after the second choke valve E3 is communicated with absorption-evaporimeter C3 that refrigerant vapour pipeline connection absorber 1 is arranged again, or evaporimeter B3 has cryogen liquid pipeline absorption-evaporimeter C3 after cryogen liquid pump G3 is communicated with absorption-evaporimeter C3 that refrigerant vapour pipeline connection absorber 1 is arranged again, evaporimeter B3 also has refrigerant vapour pipeline connection absorption-evaporimeter C3, condenser A3 also has heated medium pipeline and external communications, evaporimeter B3 also have surplus heat medium pipeline and external communications.
2. on the flow process, the refrigerant vapour that evaporimeter B3 produces provides to absorption-evaporimeter C3, being absorbed also by the solution from absorber 1, heat release becomes refrigerant vapour to provide to absorber 1 in another road refrigerant medium of the absorption of flowing through-evaporimeter C3, weak solution provides to second generator 5 through solution pump 3, the refrigerant vapour that generator 2 produces enters condenser A3, heat release is in heated medium, or cryogen liquid enters evaporimeter B3 through choke valve D3 respectively, absorbing heat into refrigerant vapour enters absorption-evaporimeter C3 and enters absorption-evaporimeter C3 through the second choke valve E3 and absorb heat into refrigerant vapour and enter absorber 1, or cryogen liquid enters evaporimeter B3 through choke valve D3 earlier, a part is absorbed heat into refrigerant vapour and is entered absorption-evaporimeter C3 and another part and enter absorption-evaporimeter C3 through cryogen liquid pump G3 again and absorb heat into refrigerant vapour and enter absorber 1, absorber 1, second absorber 5 and condenser A3 provide the heat demand of different temperatures scope respectively to heated medium, its temperature that thermic load is provided is by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A3, evaporimeter B3, absorption-evaporimeter C3, choke valve D3, the second choke valve E3 and the 3rd solution heat exchanger F3 form, provide the temperature height of the one generator type two-stage thermic load that heat pump provides of refrigerant vapour by absorption-evaporimeter C3 to absorber 1, obtain providing high temperature modification first kind absorption heat pump on the one generator type two levels of thermal pump foundation of refrigerant vapour to absorber by absorption-evaporimeter.
As Figure 13, shown in Figure 14, adopt backheat heat supply end in the middle of having absorption-generation system, realize that it is such providing the process of the high temperature modification first kind absorption heat pump on the dual occurrence type two levels of thermal pump foundation of refrigerant vapour to absorber jointly by absorption-evaporimeter and low pressure generator:
1. on the structure,---corresponding Figure 13---absorption-generation system that has middle backheat heat supply end shown in and Fig. 2---corresponding Figure 14---based on Fig. 1, increase condenser A4, evaporimeter B4, absorption-evaporimeter C4, low pressure generator D4, choke valve E4, the second choke valve F4 or cryogen liquid pump I4, the 3rd solution pump G4 and the 3rd solution heat exchanger H4, generator 2 has refrigerant vapour pipeline connection condenser A4, condenser A4 has the cryogen liquid pipeline to be communicated with evaporimeter B4 through choke valve E4, condenser A4 also has cryogen liquid pipeline absorption-evaporimeter C4 after the second choke valve F4 is communicated with absorption-evaporimeter C4 that refrigerant vapour pipeline connection absorber 1 is arranged again, evaporimeter B4 also has refrigerant vapour pipeline connection absorption-evaporimeter C4, low pressure generator D4 also has the solution pipeline solution pipeline to be arranged again through the 3rd solution pump G4 through the 3rd solution heat exchanger H4 connection absorption-evaporimeter C4 and absorption-evaporimeter C4, the 3rd solution heat exchanger H4 is communicated with low pressure generator D4, low pressure generator D4 has refrigerant vapour pipeline connection absorber 1 and the thermal medium pipeline of driving and external communications is arranged, condenser A4 also has heated medium pipeline and external communications, evaporimeter B4 also have surplus heat medium pipeline and external communications.
2. on the flow process, evaporimeter B4 provides refrigerant vapour to absorption-evaporimeter C4, being absorbed also by the solution from low pressure generator D4, heat release becomes refrigerant vapour to provide to absorber 1 in another road refrigerant medium of the absorption of flowing through-evaporimeter C4, weak solution enters low pressure generator D4 through the 3rd solution pump G4 and the 3rd solution heat exchanger H4, discharging refrigerant vapour under the heating that drives thermal medium provides to absorber 1, the refrigerant vapour that generator 2 produces enters condenser A4, heat release is in heated medium, or cryogen liquid enters evaporimeter B4 through choke valve E4 respectively, absorbing heat into refrigerant vapour enters absorption-evaporimeter C4 and enters absorption-evaporimeter C4 through the second choke valve F4 and absorb heat into refrigerant vapour and enter absorber 1, or cryogen liquid enters evaporimeter B4 through choke valve E4 earlier, a part is absorbed heat into refrigerant vapour and is entered absorption-evaporimeter C4 and another part and enter absorption-evaporimeter C4 through cryogen liquid pump I4 again and absorb heat into refrigerant vapour and enter absorber 1, absorber 1, second absorber 5 and condenser A4 provide the heat demand of different temperatures scope respectively to heated medium, its temperature that thermic load is provided is by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A4, evaporimeter B4, absorption-evaporimeter C4, low pressure generator D4, choke valve E4, the second choke valve F4 or cryogen liquid pump I4, the 3rd solution pump G4 and the 3rd solution heat exchanger H4 form, provide the temperature height of the dual occurrence type two levels of thermal thermic load that pump provides of refrigerant vapour jointly to absorber 1 by absorption-evaporimeter C4 and low pressure generator D4, obtain providing high temperature modification first kind absorption heat pump on the dual occurrence type two levels of thermal pump foundation of refrigerant vapour to absorber jointly by absorption-evaporimeter and low pressure generator.
As Figure 15, shown in Figure 16, adopt backheat heat supply end in the middle of having absorption-generation system, realize that it is such providing the process of the high temperature modification first kind absorption heat pump on the dual occurrence type two levels of thermal pump foundation of refrigerant vapour to absorber jointly by low pressure generator:
1. on the structure,---corresponding Figure 15---absorption-generation system that has middle backheat heat supply end shown in and Fig. 2---corresponding Figure 16---based on Fig. 1, increase condenser A5, evaporimeter B5, high pressure absorber C5, high pressure generator D5, choke valve E5, the 3rd solution pump F5 and the 3rd solution heat exchanger H4, high pressure generator D5 has refrigerant vapour pipeline connection condenser A5, condenser A5 has the cryogen liquid pipeline to be communicated with evaporimeter B5 through choke valve E5, evaporimeter B5 also has refrigerant vapour pipeline connection absorber 1, high pressure absorber C5 also has the solution pipeline through the 3rd solution pump F5, the 3rd solution heat exchanger G5 is communicated with high pressure generator D5 and high pressure generator D5 has the solution pipeline to be communicated with high pressure absorber C5 through the 3rd solution heat exchanger G5, high pressure generator D5 drives thermal medium pipeline and external communications in addition, condenser A5 and high pressure absorber C5 also have heated medium pipeline and external communications, evaporimeter B5 also have surplus heat medium pipeline and external communications.
2. on the flow process, evaporimeter B5 provides refrigerant vapour to absorber 1, generator 2 provides refrigerant vapour to high pressure absorber C5, absorbed also heat release in heated medium by solution from high pressure generator D5, weak solution enters high pressure generator D5 through the 3rd solution pump F5, discharging refrigerant vapour under the heating that drives thermal medium provides to condenser A5, refrigerant vapour in condenser A5 heat release in the heated medium of flowing through in it, cryogen liquid enters evaporimeter B5 through choke valve E5, absorb heat into refrigerant vapour and enter absorber 1, absorber 1, second absorber 5, high pressure absorber C5 and condenser A5 provide the heat demand of different temperatures scope respectively to heated medium, its temperature that thermic load is provided is by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A5, evaporimeter B5, high pressure absorber C5, high pressure generator D5, choke valve E5, the 3rd solution pump F5 and the 3rd solution heat exchanger G5 form, provide the temperature height of the dual occurrence type two levels of thermal thermic load that pump provides of refrigerant vapour by generator 2 to high pressure absorber C5, obtain providing high temperature modification first kind absorption heat pump on the dual occurrence type two levels of thermal pump foundation of refrigerant vapour to absorber by generator.
Obviously, above-mentioned by generator in absorber provides high temperature modification first kind absorption heat pump on the dual occurrence type two levels of thermal pump foundation of refrigerant vapour, the absorption-generation system replacement that has centre backheat heat supply end in employing is that the heat supply temperature of heat pump will further improve when leading the absorption-generation system of forming by high pressure absorber C5 and high pressure generator D5.
As Figure 17, shown in Figure 180, the process that increases high-temperature heat supply end at the high temperature modification first kind absorption heat pump that with the single-stage heat pump serves as basis and additional high-temperature heat supply end again is performed such:
1. on the structure, by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A1, increase in the high temperature modification first kind absorption heat pump of backheat heat supply end on the single-stage heat pump basis that evaporimeter B1 and choke valve C1 form, increase by the 3rd absorber D1 again, absorption-evaporimeter E1, the 3rd solution pump F1, the second choke valve G1 or cryogen liquid pump I1 and the 3rd solution heat exchanger H1, second absorber 5 there is the solution pipeline through second solution pump 7, second solution heat exchanger, 8 connection generators 2 change second absorber 5 into has the solution pipeline through second solution pump 7, second solution heat exchanger 8 is communicated with the 3rd absorber D1, the 3rd absorber D1 has the solution pipeline solution pipeline to be arranged again through the 3rd solution pump F1 through the 3rd solution heat exchanger H1 connection absorption-evaporimeter E1 and absorption-evaporimeter E1 again, the 3rd solution heat exchanger H1 is communicated with generator 2, evaporimeter B1 also has refrigerant vapour pipeline connection absorption-evaporimeter E1, or set up the cryogen liquid pipeline by condenser A1 and be communicated with absorption-evaporimeter E1 and absorption-evaporimeter E1 has refrigerant vapour pipeline connection the 3rd absorber D1 again through the second choke valve G1, or set up the cryogen liquid pipeline by evaporimeter B1 and be communicated with absorption-evaporimeter E1 and absorption-evaporimeter E1 has refrigerant vapour pipeline connection the 3rd absorber D1 again through cryogen liquid pump I1, the 3rd absorber D1 also has heated medium pipeline and external communications.
2. on the flow process, evaporimeter B1 is providing refrigerant vapour to absorption-evaporimeter E1 when absorber 1 provides refrigerant vapour, absorbed from the solution of the 3rd absorber D1 and flow through another road refrigerant medium of absorption-evaporimeter E1 of heating becomes refrigerant vapour, second absorber 5 is by second solution pump 7, solution heat exchanger 8 provides solution to the 3rd absorber D1, absorb the refrigerant vapour of self-absorption-evaporimeter E1 and heat release in heated medium, the weak solution of absorption-evaporimeter E1 enters generator 2 by the 3rd solution pump F1, discharging refrigerant vapour under the heating that drives thermal medium provides to condenser A1, refrigerant vapour in condenser A1 heat release in the heated medium of flowing through in it, or cryogen liquid enters evaporimeter B1 through choke valve C1 respectively, absorbing heat into refrigerant vapour enters absorber 1 and enters absorption-evaporimeter E1 through the second choke valve G1, absorbing heat into refrigerant vapour provides to the 3rd absorber D1, or cryogen liquid enters evaporimeter B1 through choke valve C1 earlier, its part is absorbed heat into refrigerant vapour respectively to absorber 1 with absorption-evaporimeter E1 provides and another part enters absorption-evaporimeter E1 through cryogen liquid pump I1 in evaporimeter B1, absorbing heat into refrigerant vapour provides to the 3rd absorber D1, the 3rd absorber D1 becomes new high-temperature heat supply end, obtains by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A1, the high temperature modification first kind absorption heat pump that has backheat heat supply end and additional high-temperature heat supply end on the single-stage heat pump basis that evaporimeter B1 and choke valve C1 form.
Same method is applicable to above-mentioned each high temperature heat pump, obtains the high temperature modification first kind absorption heat pump of additional high-temperature heat supply end accordingly.
As Figure 19, shown in Figure 20, the process that increases high-temperature heat supply end at the high temperature modification first kind absorption heat pump that with the single-stage heat pump serves as basis and additional high temperature heat pump flow process again is performed such:
1. on the structure, at Figure 17---shown in corresponding with Figure 19---and Figure 18---corresponding to Figure 20---by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A1, increase on the single-stage heat pump basis that evaporimeter B1 and choke valve C1 form in the high temperature modification first kind absorption heat pump of backheat heat supply end and additional high-temperature heat supply end, increase by the second condenser J1 again, the 3rd generator K1, the 3rd choke valve L1 and solution control valve M1, to absorb-evaporimeter E1 has the solution pipeline through the 3rd solution pump F1, the 3rd solution heat exchanger H1 connection generator 2 changes absorption-evaporimeter E1 into has the solution pipeline through the 3rd solution pump F1, the 3rd solution heat exchanger H1 is communicated with the 3rd generator K1 and the 3rd generator K1 has the solution pipeline to be communicated with generator 2 through solution control valve M1 again, the 3rd generator K1 drives thermal medium and external communications in addition and has the refrigerant vapour pipeline connection second condenser J1, the second condenser J1 to also have the cryogen liquid pipeline to be communicated with evaporimeter B1 and heated medium pipeline and external communications are arranged through the 3rd choke valve L1.
2. on the flow process, the weak solution of absorption-evaporimeter E1 is by the 3rd solution pump F1, the 3rd solution heat exchanger H1 enters the 3rd generator K1, under the heating that drives thermal medium, discharge refrigerant vapour and enter the second condenser J1, concentrated solution enters generator 2 through solution control valve M1, refrigerant vapour heat release cryogen liquid behind heated medium in the second condenser J1 enters evaporimeter B1 through the 3rd choke valve L1 throttling, absorb heat into refrigerant vapour, or self cooling condenser A1 provides cryogen liquid through the second choke valve G1 to absorption-evaporimeter E1, or flash-pot B1 provides cryogen liquid through cryogen liquid pump I1 to absorption-evaporimeter E1, and the cryogen liquid absorption-evaporimeter E1 that flows through absorbs heat into refrigerant vapour and provides to the 3rd absorber D1; The 3rd absorber D1, absorption-evaporimeter E1, the 3rd solution pump F1, the second choke valve G1 or cryogen liquid pump I1, the 3rd solution heat exchanger H1, the second condenser J1, the 3rd generator K1, the 3rd choke valve L1 and evaporimeter B1 constitute with by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A1, the heat pump flowsheet that has the backheat heat supply end on the single-stage heat pump basis that evaporimeter B1 and choke valve C1 form is adjacent, the heat pump flowsheet that heat supply temperature is higher, thus obtain by absorber 1, generator 2, solution pump 3, solution heat exchanger 4, condenser A1, the high temperature modification first kind absorption heat pump that has backheat heat supply end and additional high temperature heat pump flow process on the single-stage heat pump basis that evaporimeter B1 and choke valve C1 form.
Same method is applicable to above-mentioned each high temperature heat pump, obtains the high temperature modification first kind absorption heat pump of additional high temperature heat pump flow process accordingly.
The effect that the technology of the present invention can realize---a kind of method and high temperature heat pump that improves the first-class absorption type heat pump heat supply temperature proposed by the invention has following effect and advantage:
1. method is simple, practicality, and can be applied to existing source pump.
2. the first-class absorption type heat pump that utilizes the present invention to realize can improve the unit heat supply temperature, can realize the big of waste heat supply temperature Amplitude promotes, and can utilize the waste heat of lower temperature and provide the heat supply of higher temperature to the user, and it is absorption to have enlarged the first kind The temperature work scope of heat pump.
3. the first-class absorption type heat pump that utilizes the present invention to realize has heat supply temperature adjustable range advantage wide, easy to adjust.
4. the unit that utilizes the present invention to realize, simple in structure, flow process is reasonable, can reduce equipment manufacturing cost.
5. can reduce the temperature of concentrated solution in the high-temperature generator, avoid or reduce the corrosion that solution herein may cause equipment, Improve device security.
6. be used for refrigeration, can reduce the temperature requirement to the driving thermal medium, or reduce cooling medium (being heated medium) The temperature requirement, or can produce lower temperature range.
In a word, the present invention can realize the unit kind in conjunction with corresponding high temperature heat pump existing and that utilize the present invention to produce Diversity, realize the simplification of set structure, realize that the high temperature of unit also keeps the superior performance index, realize better The mutual coupling of heat pump heat supply and user's heat demand has good creativeness, novelty and practicality.

Claims (8)

1. method that improves first kind absorption heat pump heat supply temperature, there is the solution pipeline to be communicated with generator (2) with solution heat exchanger (4) at what be applied to first kind absorption heat pump by absorber (1) through solution pump (3), generator (2) has the solution pipeline to be communicated with absorber (1) through solution heat exchanger (4), absorber (1) also has heated medium pipeline and external communications respectively and has the refrigerant vapour pipeline to be communicated with the refrigerant vapour production part, generator (2) also has respectively and drives thermal medium pipeline and external communications and have the refrigerant vapour pipeline to be communicated with formed absorption-generation system with condensate component, introduce second absorber (5), second generator (6), second solution pump (7), second solution heat exchanger (8), the absorption-generation system of backheat heat supply end in the middle of formation has---absorber (1) there is the solution pipeline through solution pump (3), solution heat exchanger (4) connection generator (2) changes absorber (1) into has the solution pipeline through solution pump (3), solution heat exchanger (4) is established the solution pipeline through second solution pump (7) by second absorber (5) after being communicated with second absorber (5) again, second solution heat exchanger (8) is communicated with generator (2), having the solution pipeline to change generator (2) into through solution heat exchanger (4) connection absorber (1) in generator (2) has solution pipeline second generator (6) after second solution heat exchanger (8) is communicated with second generator (6) to have the solution pipeline to be communicated with absorber (1) through solution heat exchanger (4) again, second generator (6) also has refrigerant vapour pipeline connection second absorber (5), absorber (1) has refrigerant vapour pipeline and refrigerant vapour to produce system connectivity and heated medium pipeline and external communications is arranged, second absorber (5) also has heated medium pipeline and external communications, generator (2), second generator (6) also has the thermal medium pipeline of driving and external communications respectively; There is not second generator and when introducing refrigerant vapour pressure regulator valve (9), generator (2) is communicated with absorber (1) through second solution heat exchanger (8), solution heat exchanger (4), and generator (2) has the refrigerant vapour pipeline to be communicated with second absorber (5) through refrigerant vapour pressure regulator valve (9); Or concentrated solution enters second generator (6) after driving weak solution that thermal medium adds heater (2) and discharging refrigerant vapour, driving solution that thermal medium heats second generator (6) discharges refrigerant vapour and provides to second absorber (5), concentrated solution enters absorber (1) and absorbs the refrigerant vapour heat release in heated medium, or drive weak solution that thermal medium adds heater (2) discharge refrigerant vapour and wherein a part provide to second absorber (5), concentrated solution enters absorber (1) and absorbs the refrigerant vapour heat release in heated medium, weak solution enters second absorber (5) and absorbs refrigerant vapour heat release from second generator (6) in heated medium, and the weak solution that concentration further reduces enters generator (2) discharges higher temperature under the heating that drives thermal medium refrigerant vapour and outwards provides.
Claim 1 is described have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser (A1), evaporimeter (B1) and choke valve (C1), condenser (A1) has refrigerant vapour pipeline connection generator (2) and has the cryogen liquid pipeline to be communicated with evaporimeter (B1) through choke valve (C1), evaporimeter (B1) has refrigerant vapour pipeline connection absorber (1), condenser (A1) also has heated medium pipeline and external communications, evaporimeter (B1) also have surplus heat medium pipeline and external communications; Absorber (1), second absorber (5) and condenser (A1) provide the heat demand of different temperatures scope respectively to heated medium, have the high temperature modification first kind absorption heat pump of backheat heat supply end on the single-stage heat pump basis that obtains being made up of absorber (1), generator (2), solution pump (3), solution heat exchanger (4), condenser (A1), evaporimeter (B1) and choke valve (C1).
Claim 1 is described have in the middle of on the absorption-generation system of backheat heat supply end, 1. increase condenser (A2), evaporimeter (B2), choke valve (C2), the 3rd generator (D2), second choke valve (E2), the 3rd choke valve (F2) and the 3rd solution heat exchanger (G2); When the 3rd generator (D2) is used as high pressure generator, draw the solution pipeline from solution pump (3) and be communicated with the 3rd generator (D2) through the 3rd solution heat exchanger (G2), the 3rd generator (D2) also has the solution pipeline to be communicated with absorber (1) through the 3rd solution heat exchanger (G2), the 3rd generator (D2) also has refrigerant vapour pipeline connection generator (2), generator (2) also has the cryogen liquid pipeline to be communicated with condenser (A2) through second choke valve (E2) again, and the 3rd generator (D2) also has refrigerant vapour pipeline connection second generator (6) back second generator (6) to have the cryogen liquid pipeline to be communicated with evaporimeter (B2) through the 3rd choke valve (F2) more again when adopting second generator (6); When the 3rd generator (D2) is used as low pressure generator, draw the solution pipeline from solution pump (3) and be communicated with the 3rd generator (D2) through the 3rd solution heat exchanger (G2), the 3rd generator (D2) also has the solution pipeline to be communicated with absorber (1) through the 3rd solution heat exchanger (G2), generator (2) has refrigerant vapour pipeline connection the 3rd generator (D2) back the 3rd generator (D2) to have the cryogen liquid pipeline to be communicated with condenser (A2) through second choke valve (E2) again, and the 3rd generator (D2) also has refrigerant vapour pipeline connection condenser (A2); Condenser (A2) has refrigerant vapour pipeline connection generator (2) and has the cryogen liquid pipeline to be communicated with evaporimeter (B2) through choke valve (C2), evaporimeter (B2) has refrigerant vapour pipeline connection absorber (1), condenser (A2) also has heated medium pipeline and external communications, evaporimeter (B2) also have surplus heat medium pipeline and external communications; Absorber (1), second absorber (5) and condenser (A2) provide the heat demand of different temperatures scope respectively to heated medium, have the high temperature modification first kind absorption heat pump of backheat heat supply end on the single-stage double-effect heat pump basis that obtains forming, adopt solution in parallel to circulate by absorber (1), the 3rd generator (D2), generator (2), solution pump (3), solution heat exchanger (4), condenser (A2), evaporimeter (B2), choke valve (C2), second choke valve (E2) and second solution heat exchanger (G2); When 2. increasing the 3rd solution pump (H2) again, second absorber (5) there is the solution pipeline through second solution pump (7), second solution heat exchanger (8) connection generator (2) changes second absorber (5) into has the solution pipeline through second solution pump (7), second solution heat exchanger (8) and the 3rd solution heat exchanger (G2) are communicated with the 3rd generator (D2) back the 3rd generator (D2) has the solution pipeline through the 3rd solution heat exchanger (G2), the 3rd solution pump (H2) is communicated with generator (2), generator (2) also has refrigerant vapour pipeline connection the 3rd generator (D2) and the 3rd generator (D2) to have the cryogen liquid pipeline to be communicated with condenser (A2) through second choke valve (E2) again, condenser (A2) has refrigerant vapour pipeline connection the 3rd generator (D2) and has the cryogen liquid pipeline to be communicated with evaporimeter (B2) through choke valve (C2), evaporimeter (B2) has refrigerant vapour pipeline connection absorber (1), condenser (A2) also has heated medium pipeline and external communications, evaporimeter (B2) also have surplus heat medium pipeline and external communications obtain by absorber (1), generator (2), solution pump (3), solution heat exchanger (4), condenser (A2), evaporimeter (B2), choke valve (C2), the 3rd generator (D2), second choke valve (E2), second solution heat exchanger (G2) and the 3rd solution pump (H2) are formed, the high temperature modification first kind absorption heat pump that has the backheat heat supply end on the single-stage double-effect heat pump basis of adopting series connection solution to circulate.
Claim 1 is described have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser (A3), evaporimeter (B3), absorption-evaporimeter (C3), choke valve (D3), second choke valve (E3) or cryogen liquid pump (G3) and the 3rd solution heat exchanger (F3), absorber (1) there is the solution pipeline through solution pump (3), solution heat exchanger (4) connection second absorber (5) changes absorber (1) into has solution pipeline absorption-evaporimeter (C3) after the 3rd solution heat exchanger (F3) is communicated with absorption-evaporimeter (C3) the solution pipeline to be arranged again through solution pump (3), the 3rd solution heat exchanger (F3) and solution heat exchanger (4) are communicated with second absorber (5), generator (2) has refrigerant vapour pipeline connection condenser (A3), condenser (A3) has the cryogen liquid pipeline to be communicated with evaporimeter (B3) through choke valve (D3), or condenser (A3) also has cryogen liquid pipeline absorption-evaporimeter (C3) after second choke valve (E3) is communicated with absorption-evaporimeter (C3) that refrigerant vapour pipeline connection absorber (1) is arranged again, or evaporimeter (B3) has cryogen liquid pipeline absorption-evaporimeter (C3) after cryogen liquid pump (G3) is communicated with absorption-evaporimeter (C3) that refrigerant vapour pipeline connection absorber (1) is arranged again, evaporimeter (B3) also has refrigerant vapour pipeline connection absorption-evaporimeter (C3), condenser (A3) also has heated medium pipeline and external communications, evaporimeter (B3) also have surplus heat medium pipeline and external communications, absorber (1), second absorber (5) and condenser (A3) provide the heat demand of different temperatures scope respectively to heated medium, obtain by absorber (1), generator (2), solution pump (3), solution heat exchanger (4), condenser (A3), evaporimeter (B3), absorption-evaporimeter (C3), choke valve (D3), second choke valve (E3) and the 3rd solution heat exchanger (F3) are formed, the high temperature modification first kind absorption heat pump that has the backheat heat supply end on the one generator type two levels of thermal pump foundation of refrigerant vapour is provided to absorber (1) by absorption-evaporimeter (C3).
Claim 1 is described have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser (A4), evaporimeter (B4), absorption-evaporimeter (C4), low pressure generator (D4), choke valve (E4), second choke valve (F4) or cryogen liquid pump (I4), the 3rd solution pump (G4) and the 3rd solution heat exchanger (H4), generator (2) has refrigerant vapour pipeline connection condenser (A4), condenser (A4) has the cryogen liquid pipeline to be communicated with evaporimeter (B4) through choke valve (E4), condenser (A4) also has cryogen liquid pipeline absorption-evaporimeter (C4) after second choke valve (F4) is communicated with absorption-evaporimeter (C4) that refrigerant vapour pipeline connection absorber (1) is arranged again, evaporimeter (B4) also has refrigerant vapour pipeline connection absorption-evaporimeter (C4), low pressure generator (D4) also has the solution pipeline solution pipeline to be arranged again through the 3rd solution pump (G4) through the 3rd solution heat exchanger (H4) connection absorption-evaporimeter (C4) and absorption-evaporimeter (C4), the 3rd solution heat exchanger (H4) is communicated with low pressure generator (D4), low pressure generator (D4) has refrigerant vapour pipeline connection absorber (1) and the thermal medium pipeline of driving and external communications is arranged, condenser (A4) also has heated medium pipeline and external communications, evaporimeter (B4) also have surplus heat medium pipeline and external communications, absorber (1), second absorber (5) and condenser (A4) provide the heat demand of different temperatures scope respectively to heated medium, obtain by absorber (1), generator (2), solution pump (3), solution heat exchanger (4), condenser (A4), evaporimeter (B4), absorption-evaporimeter (C4), low pressure generator (D4), choke valve (E4), second choke valve (F4) or cryogen liquid pump (I4), the 3rd solution pump (G4) and the 3rd solution heat exchanger (H4) are formed, the high temperature modification first kind absorption heat pump that on absorber (1) provides the dual occurrence type two levels of thermal pump foundation of refrigerant vapour, has the backheat heat supply end by absorption-evaporimeter (C4) and low pressure generator (D4) jointly.
Claim 1 is described have in the middle of on the absorption-generation system of backheat heat supply end, increase condenser (A5), evaporimeter (B5), high pressure absorber (C5), high pressure generator (D5), choke valve (E5), the 3rd solution pump (F5) and the 3rd solution heat exchanger (H4), high pressure generator (D5) has refrigerant vapour pipeline connection condenser (A5), condenser (A5) has the cryogen liquid pipeline to be communicated with evaporimeter (B5) through choke valve (E5), evaporimeter (B5) also has refrigerant vapour pipeline connection absorber (1), generator (2) has refrigerant vapour pipeline connection high pressure absorber (C5), high pressure absorber (C5) also has the solution pipeline through the 3rd solution pump (F5), the 3rd solution heat exchanger (G5) is communicated with high pressure generator (D5) and high pressure generator (D5) has the solution pipeline to be communicated with high pressure absorber (C5) through the 3rd solution heat exchanger (G5), high pressure generator (D5) drives thermal medium pipeline and external communications in addition, condenser (A5) and high pressure absorber (C5) also have heated medium pipeline and external communications, evaporimeter (B5) also have surplus heat medium pipeline and external communications, absorber (1), second absorber (5), high pressure absorber (C5) and condenser (A5) provide the heat demand of different temperatures scope respectively to heated medium, obtain by absorber (1), generator (2), solution pump (3), solution heat exchanger (4), condenser (A5), evaporimeter (B5), high pressure absorber (C5), high pressure generator (D5), choke valve (E5), the 3rd solution pump (F5) and the 3rd solution heat exchanger (G5) are formed, the high temperature modification first kind absorption heat pump that has the backheat heat supply end on the dual occurrence type two levels of thermal pump foundation of refrigerant vapour is provided to high pressure absorber (C5) by generator (2).
7. described by absorber (1) in claim 2, generator (2), solution pump (3), solution heat exchanger (4), condenser (A1), increase in the high temperature modification first kind absorption heat pump of backheat heat supply end on the single-stage heat pump basis that evaporimeter (B1) and choke valve (C1) are formed, increase the 3rd absorber (D1) again, absorption-evaporimeter (E1), the 3rd solution pump (F1), second choke valve (G1) or cryogen liquid pump (I1) and the 3rd solution heat exchanger (H1), second absorber (5) there is the solution pipeline through second solution pump (7), second solution heat exchanger (8) connection generator (2) changes second absorber (5) into has the solution pipeline through second solution pump (7), second solution heat exchanger (8) is communicated with the 3rd absorber (D1), the 3rd absorber (D1) has the solution pipeline solution pipeline to be arranged again through the 3rd solution pump (F1) through the 3rd solution heat exchanger (H1) connection absorption-evaporimeter (E1) and absorption-evaporimeter (E1) again, the 3rd solution heat exchanger (H1) is communicated with generator (2), evaporimeter (B1) also has refrigerant vapour pipeline connection absorption-evaporimeter (E1), or set up the cryogen liquid pipeline by condenser (A1) and be communicated with absorption-evaporimeter (E1) and absorption-evaporimeter (E1) has refrigerant vapour pipeline connection the 3rd absorber (D1) again through second choke valve (G1), or set up the cryogen liquid pipeline by evaporimeter (B1) and be communicated with absorption-evaporimeter (E1) and absorption-evaporimeter (E1) has refrigerant vapour pipeline connection the 3rd absorber (D1) again through cryogen liquid pump (I1), the 3rd absorber (D1) also has heated medium pipeline and external communications, the 3rd absorber (D1) becomes new high-temperature heat supply end, obtains by absorber (1), generator (2), solution pump (3), solution heat exchanger (4), condenser (A1), the high temperature modification first kind absorption heat pump that has backheat heat supply end and additional high-temperature heat supply end on the single-stage heat pump basis that evaporimeter (B1) and choke valve (C1) are formed.
8. described by absorber (1) in claim 7, generator (2), solution pump (3), solution heat exchanger (4), condenser (A1), increasing the backheat heat supply end on the single-stage heat pump basis that evaporimeter (B1) and choke valve (C1) are formed also adds in the high temperature modification first kind absorption heat pump of high-temperature heat supply end again, increase by second condenser (J1) again, the 3rd generator (K1), the 3rd choke valve (L1) and solution control valve (M1), to absorb-evaporimeter (E1) and the solution pipeline be arranged through the 3rd solution pump (F1), the 3rd solution heat exchanger (H1) connection generator (2) changes absorption-evaporimeter (E1) into has the solution pipeline through the 3rd solution pump (F1), the 3rd solution heat exchanger (H1) is communicated with the 3rd generator (K1) and the 3rd generator (K1) has the solution pipeline to be communicated with generator (2) through solution control valve (M1) again, the 3rd generator (K1) drives thermal medium and external communications in addition and refrigerant vapour pipeline connection second condenser (J1) is arranged, second condenser (J1) also has the cryogen liquid pipeline to be communicated with evaporimeter (B1) and heated medium pipeline and external communications are arranged through the 3rd choke valve (L1), obtains by absorber (1), generator (2), solution pump (3), solution heat exchanger (4), condenser (A1), the high temperature modification first kind absorption heat pump that has backheat heat supply end and additional high temperature heat pump flow process on the single-stage heat pump basis that evaporimeter (B1) and choke valve (C1) are formed.
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