CN104832970A - Absorption type heat exchanger unit - Google Patents
Absorption type heat exchanger unit Download PDFInfo
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- CN104832970A CN104832970A CN201510202867.XA CN201510202867A CN104832970A CN 104832970 A CN104832970 A CN 104832970A CN 201510202867 A CN201510202867 A CN 201510202867A CN 104832970 A CN104832970 A CN 104832970A
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 92
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 160
- 239000006096 absorbing agent Substances 0.000 claims abstract description 34
- 230000008676 import Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 description 5
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229940059936 lithium bromide Drugs 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention provides an absorption heat exchange unit, which comprises a boiler, an absorption heat pump, a heat exchanger and a pipeline system, wherein the pipeline system passes through the boiler, the absorption heat pump and the heat exchanger; the absorption heat pump comprises a generator, an evaporator, an absorber and a condenser, the pipeline system comprises a primary side pipeline and a secondary side pipeline, the primary side pipeline passes through the boiler, the generator and the heat exchanger in series, and primary water in the primary side pipeline flows out of the absorption heat exchanger unit after sequentially passing through the boiler and the generator and then passing through the heat exchanger; the secondary side pipeline is connected in parallel to pass through the evaporator, the absorber, the condenser and the heat exchanger, so that the resistance of primary water can be greatly reduced, the flow rate of the primary side pipeline in the generator and the flow rate of the secondary side pipeline in the evaporator are increased, the heat exchange coefficients of the generator and the evaporator are further improved, the heat supply cost is reduced, and the size of the absorption unit is reduced.
Description
Technical field
The present invention relates to heat exchanger technology field, particularly relate to a kind of absorption heat exchange unit be combined with boiler.
Background technology
Along with the continuous increase of concentrated supply of heating in the city scale, central heat source produces high-temperature-hot-water often to be needed could arrive heat user place through the conveying of longer distance.When identical heating demand, the water supply of increase hot water and backwater temperature difference can reduce the hot water flow of conveying, thus reduce the initial cost of transmission and distribution pipeline, and reduce the power consumption of water pump in system operation, therefore, it is possible to save for thermal energy consumption, reduce heat cost.
At present, thermal substation adopts plate type heat exchanger to carry out heat exchange usually, owing to being subject to the restriction of the heat-exchange end temperature difference, causes a secondary net return water temperature inevitable higher than secondary network inflow temperature.To heat capacity be improved like this, can only heating network be set up, and then cause increasing heat cost.
Thermal substation also adopts the structure of heat exchanger and boiler combination to carry out heat exchange, but when adopting said structure to carry out heat exchange, primary side water resistance is larger, in generator and evaporator tube, the flow velocity of water is lower, the coefficient of heat transfer is not high, and then causes unit volume comparatively large, increases heat cost.
Summary of the invention
Based on this, be necessary for when adopting the structure of existing heat exchanger and boiler combination to carry out heat exchange, there is the problem that primary side water resistance is comparatively large, the coefficient of heat transfer is not high, a kind of absorption heat exchange unit that can reduce primary side water resistance, improve the coefficient of heat transfer is provided.Above-mentioned purpose is achieved through the following technical solutions:
A kind of absorption heat exchange unit, comprise boiler, absorption heat pump, heat exchanger and pipe-line system, described pipe-line system is through described boiler, described absorption heat pump and described heat exchanger;
Wherein, described absorption heat pump comprises generator, evaporimeter, absorber and condenser, described pipe-line system comprises primary side pipeline and secondary side pipeline, described primary side pipeline series connection is through described boiler, described generator and described heat exchanger, and a water of described primary side pipeline flows out described absorption heat exchange unit successively after described boiler and described generator flow through described heat exchanger again; Described secondary side pipeline is in parallel through described evaporimeter, described absorber, described condenser and described heat exchanger.
Wherein in an embodiment, the quantity of described heat exchanger is n, is respectively first order heat exchanger, second level heat exchanger, n-th grade of heat exchanger, described secondary side pipeline comprises n+1 parallel branch, is respectively secondary side first order branch road, secondary side second level branch road, secondary side third level branch road, secondary side n-th grade of branch road and secondary side (n+1)th grade of branch road, wherein n is positive integer, described secondary side first order branch road, described secondary side second level branch road, described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road separate in the import department of described absorption heat pump, described secondary side second level branch road and described secondary side (n+1)th grade of branch road merge in the exit of described n-th grade of heat exchanger, merge in the exit of described (n-1)th grade of heat exchanger with described secondary side n-th grade of branch road again after described secondary side second level branch road and described secondary side (n+1)th grade of branch road merge,, described secondary side second level branch road, merge in the exit of second level heat exchanger with described secondary side third level branch road again after described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road merge, described secondary side second level branch road, described secondary side third level branch road, merge in the exit of described first order heat exchanger with described secondary side first order branch road again after described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road merge.
Wherein in an embodiment, described secondary side first order branch road is through described absorber and described condenser, described secondary side second level branch road is through described evaporimeter and described n-th grade of heat exchanger, through described (n-1)th grade of heat exchanger after described secondary side (n+1)th grade of branch road and described secondary side second level branch road merge, described secondary side second level branch road, described secondary side n-th grade of branch road, through described second level heat exchanger after described secondary side (n+1)th grade of branch road and described secondary side third level branch road merge, described secondary side second level branch road, described secondary side third level branch road, described secondary side n-th grade of branch road, through described first order heat exchanger after described secondary side (n+1)th grade of branch road and described secondary side first order branch road merge,
The intermediate water of described secondary side pipeline flows into described secondary side first order branch road respectively, described secondary side second level branch road, described secondary side third level branch road, described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road, the intermediate water of described secondary side second level branch road flows through described evaporimeter and described n-th grade of heat exchanger, described (n-1)th grade of heat exchanger is flowed through after the intermediate water of described secondary side (n+1)th grade of branch road mixes with the intermediate water of described secondary side second level branch road, the intermediate water of described secondary side second level branch road, the intermediate water of described secondary side n-th grade of branch road, described second level heat exchanger is flowed through after the intermediate water of described secondary side (n+1)th grade of branch road mixes with the intermediate water of described secondary side third level branch road, the intermediate water of described secondary side second level branch road, the intermediate water of described secondary side third level branch road, the intermediate water of described secondary side n-th grade of branch road, described first order heat exchanger is flowed through after the intermediate water of described secondary side (n+1)th grade of branch road mixes with the intermediate water of described secondary side first order branch road, described absorption heat exchange unit is flowed out after mixing with the intermediate water of the described secondary side first order branch road flowing through described absorber and described condenser successively again.
Wherein in an embodiment, the quantity of described heat exchanger is one, and described secondary side pipeline comprises two parallel branches, and described two parallel branches are separated from the import department of described absorption heat pump, and merge in the exit of described heat exchanger.
Wherein in an embodiment, parallel branch described in one of them is through described absorber and described condenser, and parallel branch described in another is through described evaporimeter and described heat exchanger;
The intermediate water of described secondary side pipeline flows into parallel branch described in one of them and parallel branch described in another respectively, the intermediate water of parallel branch described in one of them flows through described absorber and described condenser successively, then with flow through successively described evaporimeter and described heat exchanger another described in the intermediate water of parallel branch mix after flow out described absorption heat exchange unit.
Wherein in an embodiment, the quantity of described heat exchanger is two, be respectively First Heat Exchanger and the second heat exchanger, described secondary side pipeline comprises three parallel branches, be respectively secondary side first branch road, secondary side second branch road and secondary side the 3rd branch road, described secondary side first branch road, described secondary side second branch road and described secondary side the 3rd branch road are in the porch of described suction-type heat pump separately, described secondary side the 3rd branch road and described secondary side second branch road merge in the exit of described second heat exchanger, merge in the exit of described First Heat Exchanger with described secondary side first branch road again after described secondary side the 3rd branch road and described secondary side second branch road merge.
Wherein in an embodiment, described secondary side first branch road is through described absorber and described condenser, described secondary side second branch road through described evaporimeter and described second heat exchanger, through described First Heat Exchanger after described secondary side second branch road and described secondary side the 3rd branch road merge;
The intermediate water of described secondary side pipeline flows into described secondary side first branch road, described secondary side second branch road and described secondary side the 3rd branch road respectively, after the intermediate water of described secondary side second branch road flows through described evaporimeter and described second heat exchanger successively, mix with the intermediate water of described secondary side the 3rd branch road flowing through described First Heat Exchanger, then flow out described absorption heat exchange unit after mixing with the intermediate water of described secondary side first branch road flowing through described absorber and described condenser successively.
Wherein in an embodiment, described generator is provided with bypass line, described bypass line and described primary side pipeline pass through.
The invention has the beneficial effects as follows:
Absorption heat exchange unit of the present invention, structural design advantages of simple, the primary side pipeline series connection of pipe-line system can reduce the resistance of a water greatly through the generator of boiler, absorption heat pump and heat exchanger, the resistance that water need overcome is the resistance of the generator of absorption heat pump and the resistance sum of heat exchanger.Simultaneously, the primary side pipeline series connection of pipe-line system is through generator and the heat exchanger of boiler, absorption heat pump and the secondary side pipeline of pipe-line system is in parallel can ensure that the lift being supplied to generator and evaporimeter improves greatly through evaporator, absorber, condenser and heat exchanger, the flow velocity of the primary side pipeline in generator and the secondary side pipeline in evaporimeter is increased, and then improve the coefficient of heat transfer of generator and evaporimeter, reduce heat cost, reduce the volume of absorption installation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the absorption heat exchange unit of one embodiment of the invention;
Fig. 2 is the schematic diagram of the absorption heat exchange unit of another embodiment of the present invention;
Wherein:
100-absorption heat exchange unit;
110-boiler;
120-absorption heat pump; 121-generator; 122-evaporimeter; 123-absorber; 124-condenser;
130-heat exchanger; 131-First Heat Exchanger; 132-second heat exchanger;
140-pipe-line system; 141-primary side pipeline; 142-secondary side pipeline.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, by the following examples, and by reference to the accompanying drawings, absorption heat exchange unit of the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
See Fig. 1 and Fig. 2, the absorption heat exchange unit 100 of one embodiment of the invention, comprise boiler 110, absorption heat pump 120, heat exchanger 130 and pipe-line system 140, pipe-line system 140, through boiler 110, absorption heat pump 120 and heat exchanger 130, improves heat capacity by absorption heat pump 120.Wherein, absorption heat pump 120 comprises generator 121, evaporimeter 122, absorber 123 and condenser 124, pipe-line system 140 comprises primary side pipeline 141 and secondary side pipeline 142, primary side pipeline 141 is connected through boiler 110, generator 121 and heat exchanger 130, and a water of primary side pipeline 141 flows out absorption heat exchange unit 100 successively after boiler 110 and generator 121 flow through heat exchanger 130 again; Secondary side pipeline 142 parallel connection is through evaporator 122, absorber 123, condenser 124 and heat exchanger 130.Primary side water inlet and primary side delivery port is provided with at the two ends of primary side pipeline 141, one time water flows into primary side pipeline 141 from primary side water inlet, and flow through boiler 110, generator 121 and heat exchanger 130 successively, flow out a water from primary side delivery port and flow primary side pipeline 141.Secondary side water inlet and secondary side delivery port is provided with at the two ends of secondary side pipeline 142, intermediate water flows into secondary side pipeline 142 from secondary side water inlet, and flow through evaporimeter 122, absorber 123, condenser 124 and heat exchanger 130 respectively, flow out from secondary side delivery port, intermediate water flows in secondary side pipeline 142.Ensure the temperature difference between the return water temperature of a water and the inflow temperature of intermediate water by absorption heat pump 120, make the inflow temperature of return water temperature lower than intermediate water of a water.Wherein, heat exchanger 130 is water-water heat exchanger, certainly, also can adopt cooling fluid-water-to-water heat exchanger.The direction of arrow shown in Fig. 1 and Fig. 2 is respectively the flow direction of a water and intermediate water.
The primary side pipeline 141 of pipe-line system 140 is connected through the generator 121 of boiler 110, absorption heat pump 120 and heat exchanger 130, and secondary side pipeline 142 parallel connection of pipe-line system 140 is through evaporimeter 122, the absorber 123 of absorption heat pump 120, condenser 124 and the heat exchanger 130 of absorption heat pump 120 of absorption heat pump 120.Water releases heat after flowing through the generator 121 of absorption heat pump 120 and heat exchanger 130 successively, one of them parallel branch of intermediate water is lowered the temperature by the evaporimeter 122 of absorption heat pump 120, heat is absorbed again by heat exchanger 130, a water and intermediate water carry out heat exchange in heat exchanger 130, namely when through heat exchanger 130, a water is cooled, and intermediate water is heated.Intermediate water absorbs heat by the absorber 123 of the absorption heat pump 120 of another parallel branch, the condenser 124 of absorption heat pump 120, flows out absorption heat exchange unit 100 after the intermediate water of another parallel branch mixes with the intermediate water of one of them parallel branch again.The temperature that current can be made like this to go out absorption heat exchange unit 100 flows to the temperature of absorption heat exchange unit 100 lower than intermediate water, ensure the temperature difference between the leaving water temperature of a water and the inflow temperature of intermediate water, improve the heat capacity of absorption heat exchange unit 100.
In absorption heat exchange unit 100 of the present invention, the primary side pipeline 141 of pipe-line system 140 is connected through the generator 121 of boiler 110, absorption heat pump 120 and heat exchanger 130, greatly can reduce a water resistance.A water flows through generator 121 and the heat exchanger 130 of absorption heat pump 120 successively, and now, a water required resistance overcome when flowing is the resistance of the generator 121 of absorption heat pump 120 and the resistance sum of heat exchanger 130.For the structure of existing heat exchanger and boiler combination, can by the resistance of a water from 15mH
2more than O is down to 8mH
2below O, does not need to increase by a secondary net water pump in addition, saves for thermal energy consumption, reduces heat cost, reduce the volume of absorption heat exchange unit 100.
Due to one time, water only needs the resistance of the generator 121 overcoming absorption heat pump 120 and the resistance of heat exchanger 130, can ensure that the lift being supplied to generator 121 improves greatly like this.Meanwhile, the lift that the resistance due to evaporimeter 122 is provided by the water pump of intermediate water overcomes, and the lift being supplied to evaporimeter 122 is also improved greatly.Therefore, under enough lifts, generator 121 and evaporimeter 122 can design more flow process number, flow velocity in water primary side pipeline 141 in generator 121 is improved, flow velocity in the secondary side pipeline 142 of intermediate water in evaporimeter 122 improves, and flow velocity can bring up to 1m/s in the present invention.Along with the increase of flow velocity, the coefficient of heat transfer of generator 121 and evaporimeter 122 also can increase accordingly, and then reduces the volume of absorption heat exchange unit 100.In the present invention, the coefficient of heat transfer of generator 121 and evaporimeter 122 can increase by more than 20%, and then makes the volume of absorption heat exchange unit 100 reduce 10%.
At present, thermal substation adopts plate type heat exchanger to carry out heat exchange usually, owing to being subject to the restriction of the heat-exchange end temperature difference, causing a secondary net return water temperature inevitable higher than secondary network inflow temperature, and then causes increasing heat cost.Meanwhile, thermal substation also adopts the structure of heat exchanger and boiler combination to carry out heat exchange, but when adopting said structure to carry out heat exchange, primary side water resistance is comparatively large, and in generator and evaporator tube, the flow velocity of water is lower, and the coefficient of heat transfer is not high, and then cause unit volume comparatively large, increase heat cost.The primary side pipeline 141 of absorption heat exchange unit 100 pipe-line system 140 of the present invention is connected through boiler 110, the generator 121 of absorption heat pump 120 is in parallel through evaporator 122 with the secondary side pipeline 142 of heat exchanger 130 and pipe-line system 140, absorber 123, condenser 124 and heat exchanger 130 ensure the temperature difference between the leaving water temperature of a water and the inflow temperature of intermediate water, the temperature making current go out absorption heat exchange unit 100 flows to the temperature of absorption heat exchange unit 100 lower than intermediate water, also make the flow velocity of the primary side pipeline 141 in generator 121 and the secondary side pipeline 142 in evaporimeter 122 increase simultaneously, and then improve the coefficient of heat transfer of generator 121 and evaporimeter 122, reduce heat cost, reduce the volume of absorption installation.
Further, generator 121 is provided with bypass line, bypass line and primary side pipeline 141 pass through.In absorption heat pump 120, because a water is only by generator 121, when absorption heat exchange unit 100 of the present invention is in crystallization-preventive, when the guard modes such as anti-hypertonia need to shut down, in order to ensure that absorption heat exchange unit 100 of the present invention still can ensure to have certain heat capacity, only need generator 121 a water that bypass line is set, bypass line is through primary side pipeline 141, make a water walk around generator 121 by bypass line through primary side pipeline 141 and carry out heat exchange with the intermediate water in heat exchanger 130, and the intermediate water that evaporimeter 122 passes through can to maintain flow constant, simple to operate, user-friendly.
As a kind of embodiment, the quantity of heat exchanger 130 is n, is respectively first order heat exchanger, second level heat exchanger, n-th grade of heat exchanger, secondary side pipeline 142 comprises n+1 parallel branch, is respectively secondary side first order branch road, secondary side second level branch road, secondary side third level branch road, secondary side n-th grade of branch road and secondary side (n+1)th grade of branch road, wherein n is positive integer, secondary side first order branch road, secondary side second level branch road, secondary side n-th grade of branch road and secondary side (n+1)th grade of branch road separate in the import department of absorption heat pump 120, secondary side second level branch road and secondary side (n+1)th grade of branch road merge in the exit of n-th grade of heat exchanger, merge in the exit of (n-1)th grade of heat exchanger with secondary side n-th grade of branch road again after secondary side second level branch road and secondary side (n+1)th grade of branch road merge,, secondary side second level branch road, merge in the exit of second level heat exchanger with secondary side third level branch road again after secondary side n-th grade of branch road and secondary side (n+1)th grade of branch road merge, secondary side second level branch road, secondary side third level branch road, merge in the exit of first order heat exchanger with secondary side first order branch road again after secondary side n-th grade of branch road and secondary side (n+1)th grade of branch road merge.Improve the temperature difference between the leaving water temperature of a water and the inflow temperature of intermediate water by n heat exchanger, ensure the heat capacity of absorption heat exchange unit 100 of the present invention.
Further, secondary side first order branch road is through absorber 123 and condenser 124, secondary side second level branch road is through evaporator 122 and n-th grade of heat exchanger, through (n-1)th grade of heat exchanger after secondary side (n+1)th grade of branch road and secondary side second level branch road merge, secondary side second level branch road, secondary side n-th grade of branch road, through second level heat exchanger after secondary side (n+1)th grade of branch road and secondary side third level branch road merge, secondary side second level branch road, secondary side third level branch road, secondary side n-th grade of branch road, through first order heat exchanger after secondary side (n+1)th grade of branch road and secondary side first order branch road merge,
The intermediate water of secondary side pipeline 142 flows into secondary side first order branch road respectively, secondary side second level branch road, secondary side third level branch road, secondary side n-th grade of branch road and secondary side (n+1)th grade of branch road, the intermediate water of secondary side second level branch road flows through evaporimeter 122 and n-th grade of heat exchanger, (n-1)th grade of heat exchanger is flowed through after the intermediate water of secondary side (n+1)th grade of branch road mixes with the intermediate water of secondary side second level branch road,, the intermediate water of secondary side second level branch road, the intermediate water of secondary side n-th grade of branch road, second level heat exchanger is flowed through, the intermediate water of secondary side second level branch road after the intermediate water of secondary side (n+1)th grade of branch road mixes with the intermediate water of secondary side third level branch road, the intermediate water of secondary side third level branch road, the intermediate water of secondary side n-th grade of branch road, flow through first order heat exchanger after the intermediate water of secondary side (n+1)th grade of branch road mixes with the intermediate water of secondary side first order branch road, then flow out absorption heat exchange unit 100 after mixing with the intermediate water of the secondary side first order branch road flowing through absorber 123 and condenser 124 successively.
See Fig. 1, in one embodiment of this invention, the quantity of heat exchanger 130 is one, secondary side pipeline 142 comprises two parallel branches, two parallel branches are respectively A and B shown in Fig. 1, two parallel branches are separated from the import department of absorption heat pump 120, and merge at the exit a of heat exchanger 130.Further, one of them parallel branch A is through absorber 123 and condenser 124, and another parallel branch B is through evaporator 122 and heat exchanger 130.The intermediate water of secondary side pipeline 142 flows into one of them parallel branch A and another parallel branch B respectively, the intermediate water of one of them parallel branch A flows through absorber 123 and condenser 124 successively, then flows out absorption heat exchange unit 100 after mixing with the intermediate water of another the parallel branch B flowing through evaporimeter 122 and heat exchanger 130 successively.One time water flows in primary side pipeline 141, and a water, after boiler 110 heats, enters in absorption heat pump 120, one time first water carry out heat exchange with generator 121, the rare lithium-bromide solution in heating generator 121, now, a water heat release, temperature declines, then flows out after carrying out heat exchange by heat exchanger 130 and intermediate water, now, a water heat release again, temperature declines again, and intermediate water absorbs heat, and temperature rises.Intermediate water flows in secondary side pipeline 142, intermediate water is divided into two parallel branches after entering absorption heat pump 120, an intermediate water wherein A branch road in parallel absorbs heat through absorber 123 and condenser 124 successively, intermediate water passes through evaporimeter 122 release heat at another parallel branch B, absorb heat through heat exchanger 130 again, two parallel branches are user's heat supply after the exit a of heat exchanger 130 mixes.
See Fig. 2, in another embodiment of the invention, the quantity of heat exchanger 130 is two, be respectively First Heat Exchanger 131 and the second heat exchanger 132, secondary side pipeline 142 comprises three parallel branches, be respectively secondary side first branch road L, secondary side second branch road M and secondary side the 3rd branch road N, secondary side first branch road L, secondary side second branch road M and secondary side the 3rd branch road N in the porch of suction-type heat pump separately, secondary side the 3rd branch road N and secondary side second branch road M merges at the exit e of the second heat exchanger 132, merge at the exit d of First Heat Exchanger 131 with secondary side first branch road L again after secondary side the 3rd branch road N and secondary side second branch road M merges.Further, secondary side first branch road L through absorber 123 and condenser 124, secondary side second branch road M through evaporator 122 and the second heat exchanger 132, through First Heat Exchanger 131 after secondary side second branch road M and secondary side the 3rd branch road N merges.The intermediate water of secondary side pipeline 142 flows into secondary side first branch road L, secondary side second branch road M and secondary side the 3rd branch road N respectively, after the intermediate water of secondary side second branch road M flows through evaporimeter 122 and the second heat exchanger 132 successively, mix with the intermediate water of secondary side the 3rd branch road N flowing through First Heat Exchanger 131, then flow out absorption heat exchange unit 100 after mixing with the intermediate water of the secondary side first branch road L flowing through absorber 123 and condenser 124 successively.
One time water flows in primary side pipeline 141, and a water, after boiler 110 heats, enters in absorption heat pump 120, one time first water carry out heat exchange with generator 121, the rare lithium-bromide solution in heating generator 121, now, a water heat release, temperature declines, then flows out after carrying out heat exchange by First Heat Exchanger 131 and the second heat exchanger 132 with intermediate water, now, a water heat release again, temperature declines again, and intermediate water absorbs heat, and temperature rises.Intermediate water flows in secondary side pipeline 142, and intermediate water is divided into three parallel branches after entering absorption heat pump 120, and intermediate water absorbs heat through absorber 123 and condenser 124 successively at secondary side first branch road L, intermediate water passes through evaporimeter 122 release heat at secondary side second branch road M, heat is absorbed again after the second heat exchanger 132, secondary side second branch road M and secondary side the 3rd branch road M merges at the exit e of the second heat exchanger 132, intermediate water enters First Heat Exchanger 131 after secondary side second branch road M mixes with secondary side the 3rd branch road N, merge at the exit d of First Heat Exchanger with secondary side first branch road L again after secondary side second branch road M and secondary side the 3rd branch road N merges, from First Heat Exchanger 131 flow out intermediate water with after the intermediate water of condenser 124 mixes be user's heat supply.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. an absorption heat exchange unit, it is characterized in that, comprise boiler (110), absorption heat pump (120), heat exchanger (130) and pipe-line system (140), described pipe-line system (140) is through described boiler (110), described absorption heat pump (120) and described heat exchanger (130);
Wherein, described absorption heat pump (120) comprises generator (121), evaporimeter (122), absorber (123) and condenser (124), described pipe-line system (140) comprises primary side pipeline (141) and secondary side pipeline (142), described primary side pipeline (141) series connection is through described boiler (110), described generator (121) and described heat exchanger (130), a water of described primary side pipeline (141) flows out described absorption heat exchange unit (100) successively after described boiler (110) and described generator (121) flow through described heat exchanger (130) again, described secondary side pipeline (142) is in parallel through described evaporimeter (122), described absorber (123), described condenser (124) and described heat exchanger (130).
2. absorption heat exchange unit according to claim 1, is characterized in that, the quantity of described heat exchanger (130) is n, is respectively first order heat exchanger, second level heat exchanger, n-th grade of heat exchanger, described secondary side pipeline (142) comprises n+1 parallel branch, is respectively secondary side first order branch road, secondary side second level branch road, secondary side third level branch road, secondary side n-th grade of branch road and secondary side (n+1)th grade of branch road, wherein n is positive integer, described secondary side first order branch road, described secondary side second level branch road, described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road separate in the import department of described absorption heat pump (120), described secondary side second level branch road and described secondary side (n+1)th grade of branch road merge in the exit of described n-th grade of heat exchanger, merge in the exit of described (n-1)th grade of heat exchanger with described secondary side n-th grade of branch road again after described secondary side second level branch road and described secondary side (n+1)th grade of branch road merge,, described secondary side second level branch road, merge in the exit of second level heat exchanger with described secondary side third level branch road again after described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road merge, described secondary side second level branch road, described secondary side third level branch road, merge in the exit of described first order heat exchanger with described secondary side first order branch road again after described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road merge.
3. absorption heat exchange unit according to claim 2, it is characterized in that, described secondary side first order branch road is through described absorber (123) and described condenser (124), described secondary side second level branch road is through described evaporimeter (122) and described n-th grade of heat exchanger, through described (n-1)th grade of heat exchanger after described secondary side (n+1)th grade of branch road and described secondary side second level branch road merge, described secondary side second level branch road, described secondary side n-th grade of branch road, through described second level heat exchanger after described secondary side (n+1)th grade of branch road and described secondary side third level branch road merge, described secondary side second level branch road, described secondary side third level branch road, described secondary side n-th grade of branch road, through described first order heat exchanger after described secondary side (n+1)th grade of branch road and described secondary side first order branch road merge,
The intermediate water of described secondary side pipeline (142) flows into described secondary side first order branch road respectively, described secondary side second level branch road, described secondary side third level branch road, described secondary side n-th grade of branch road and described secondary side (n+1)th grade of branch road, the intermediate water of described secondary side second level branch road flows through described evaporimeter (122) and described n-th grade of heat exchanger, described (n-1)th grade of heat exchanger is flowed through after the intermediate water of described secondary side (n+1)th grade of branch road mixes with the intermediate water of described secondary side second level branch road, the intermediate water of described secondary side second level branch road, the intermediate water of described secondary side n-th grade of branch road, described second level heat exchanger is flowed through after the intermediate water of described secondary side (n+1)th grade of branch road mixes with the intermediate water of described secondary side third level branch road, the intermediate water of described secondary side second level branch road, the intermediate water of described secondary side third level branch road, the intermediate water of described secondary side n-th grade of branch road, described first order heat exchanger is flowed through after the intermediate water of described secondary side (n+1)th grade of branch road mixes with the intermediate water of described secondary side first order branch road, described absorption heat exchange unit (100) is flowed out after mixing with the intermediate water of the described secondary side first order branch road flowing through described absorber (123) and described condenser (124) successively again.
4. absorption heat exchange unit according to claim 3, it is characterized in that, the quantity of described heat exchanger (130) is one, described secondary side pipeline (142) comprises two parallel branches, described two parallel branches are separated from the import department of described absorption heat pump (120), and merge in the exit of described heat exchanger (130).
5. absorption heat exchange unit according to claim 4, it is characterized in that, parallel branch described in one of them is through described absorber (123) and described condenser (124), and parallel branch described in another is through described evaporimeter (122) and described heat exchanger (130);
The intermediate water of described secondary side pipeline (142) flows into parallel branch described in one of them and parallel branch described in another respectively, the intermediate water of parallel branch described in one of them flows through described absorber (123) and described condenser (124) successively, then with flow through successively described evaporimeter (122) and described heat exchanger (130) another described in the intermediate water of parallel branch mix after flow out described absorption heat exchange unit (100).
6. absorption heat exchange unit according to claim 3, it is characterized in that, the quantity of described heat exchanger (130) is two, be respectively First Heat Exchanger (131) and the second heat exchanger (132), described secondary side pipeline (142) comprises three parallel branches, be respectively secondary side first branch road, secondary side second branch road and secondary side the 3rd branch road, described secondary side first branch road, described secondary side second branch road and described secondary side the 3rd branch road are in the porch of described suction-type heat pump (120) separately, described secondary side the 3rd branch road and described secondary side second branch road merge in the exit of described second heat exchanger (132), merge in the exit of described First Heat Exchanger (131) with described secondary side first branch road again after described secondary side the 3rd branch road and described secondary side second branch road merge.
7. absorption heat exchange unit according to claim 6, it is characterized in that, described secondary side first branch road is through described absorber (123) and described condenser (124), described secondary side second branch road through described evaporimeter (122) and described second heat exchanger (132), through described First Heat Exchanger (131) after described secondary side second branch road and described secondary side the 3rd branch road merge;
The intermediate water of described secondary side pipeline (142) flows into described secondary side first branch road respectively, described secondary side second branch road and described secondary side the 3rd branch road, after the intermediate water of described secondary side second branch road flows through described evaporimeter (122) and described second heat exchanger (132) successively, mix with the intermediate water of described secondary side the 3rd branch road flowing through described First Heat Exchanger (131), described absorption heat exchange unit (100) is flowed out after mixing with the intermediate water of described secondary side first branch road flowing through described absorber (123) and described condenser (124) successively again.
8. absorption heat exchange unit according to claim 1, is characterized in that, described generator (121) is provided with bypass line, and described bypass line and described primary side pipeline (141) pass through.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425143A (en) * | 2017-08-21 | 2019-03-05 | 荏原冷热***株式会社 | Absorption type heat exchange system |
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| CN103512075A (en) * | 2013-09-25 | 2014-01-15 | 清华大学 | Absorption heat exchanger unit combined with boiler |
| CN203704109U (en) * | 2014-02-28 | 2014-07-09 | 烟台荏原空调设备有限公司 | Absorption type heat exchange unit |
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