CN103697616A - Branch circulation type II absorption heat pump - Google Patents
Branch circulation type II absorption heat pump Download PDFInfo
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- CN103697616A CN103697616A CN201310755681.8A CN201310755681A CN103697616A CN 103697616 A CN103697616 A CN 103697616A CN 201310755681 A CN201310755681 A CN 201310755681A CN 103697616 A CN103697616 A CN 103697616A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
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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
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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
- 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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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides a branch circulation type II absorption heat pump and belongs to the technical field of absorption heat pumps. A generator, a second generator, an absorber, a third absorber, a solution pump, a third solution pump, a solution heat exchanger and a third solution heat exchanger form a double-temperature-drop circulation loop. The absorber, a second absorber, a second solution pump, a solution throttling valve, a second solution heat exchanger and a steam bleeding chamber realize temperature drop and temperature rise of waste heat resources. The generator supplies coolant steam to a condenser, the second generator supplies coolant steam to the third absorber, the condenser supplies coolant liquid to an evaporator, the evaporator respectively supplies coolant steam to the absorber and the second absorber, the second absorber supplies heat, the generator, the second generator and the evaporator acquires waste heat, the condenser and the third absorber emit heat to the environment, and the branch circulation type II absorption heat pump is formed.
Description
Technical field:
The invention belongs to UTILIZATION OF VESIDUAL HEAT IN and absorption heat pump technical field.
Background technology:
In residual heat resources, compared with the occasion of horn of plenty, adopting second-kind absorption-type heat pump to be used to waste heat, is effective energy saving means.Residual heat resources abundant and and between environment the temperature difference less, and hot user's demand temperature is when higher, needs to realize the effective temperature-reducing of more unnecessary thermal resource.
For improving utilization rate of waste heat, also to consider the type of residual heat resources, multiple situations such as the interval of waste heat temperature drop, coolant temperature height and hot user's heated medium temperature height, be necessary to invent and provide the shunt circulation second-kind absorption-type heat pump of different idiographic flows.
Summary of the invention:
Main purpose of the present invention is that second-kind absorption-type heat pump will be provided, and concrete summary of the invention subitem is described below:
1. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger and a minute steam chest, generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger, absorber also has weak solution pipeline to be communicated with generator through solution heat exchanger, generator also has refrigerant vapour passage to be communicated with condenser, divide steam chest to have concentrated solution pipeline to be communicated with the second absorber through the second solution pump and the second solution heat exchanger, the second absorber also has weak solution pipeline through the second solution heat exchanger, solution choke valve and absorber are communicated with a minute steam chest, divide steam chest to also have refrigerant vapour passage to be communicated with condenser, condenser also has cryogen liquid pipeline to be communicated with evaporimeter through cryogen liquid pump, evaporimeter also has refrigerant vapour passage to be communicated with absorber and the second absorber respectively, generator and the evaporimeter medium pipeline that also has surplus heat is respectively communicated with outside, condenser also has cooling medium pipeline to be communicated with outside, the second absorber also has heated medium pipeline to be communicated with outside, absorber or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
2. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second condenser and the second cryogen liquid pump, generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger, absorber also has weak solution pipeline to be communicated with generator through solution heat exchanger, generator also has refrigerant vapour passage to be communicated with condenser, condenser also has cryogen liquid pipeline to be communicated with evaporimeter through cryogen liquid pump, divide steam chest to have concentrated solution pipeline to be communicated with the second absorber through the second solution pump and the second solution heat exchanger, the second absorber also has weak solution pipeline through the second solution heat exchanger, solution choke valve and absorber are communicated with a minute steam chest, divide steam chest to also have refrigerant vapour passage to be communicated with the second condenser, the second condenser also has cryogen liquid pipeline to be communicated with evaporimeter through the second cryogen liquid pump, evaporimeter also has refrigerant vapour passage to be communicated with absorber and the second absorber respectively, generator and the evaporimeter medium pipeline that also has surplus heat is respectively communicated with outside, condenser and the second condenser also have respectively cooling medium pipeline to be communicated with outside, the second absorber also has heated medium pipeline to be communicated with outside, absorber or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
3. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second cryogen liquid pump and the second evaporimeter, generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger, absorber also has weak solution pipeline to be communicated with generator through solution heat exchanger, generator also has refrigerant vapour passage to be communicated with condenser, divide steam chest to have concentrated solution pipeline to be communicated with the second absorber through the second solution pump and the second solution heat exchanger, the second absorber also has weak solution pipeline through the second solution heat exchanger, solution choke valve and absorber are communicated with a minute steam chest, divide steam chest to also have refrigerant vapour passage to be communicated with condenser, condenser also has cryogen liquid pipeline to be communicated with evaporimeter through cryogen liquid pump, evaporimeter also has refrigerant vapour passage to be communicated with the second absorber, condenser also has cryogen liquid pipeline to be communicated with the second evaporimeter through the second cryogen liquid pump, the second evaporimeter also has refrigerant vapour passage to be communicated with absorber, generator, evaporimeter and the second evaporimeter medium pipeline that also has surplus heat is respectively communicated with outside, condenser also has cooling medium pipeline to be communicated with outside, the second absorber also has heated medium pipeline to be communicated with outside, absorber or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
4. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second condenser, the second cryogen liquid pump and the second evaporimeter; Generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger, absorber also has weak solution pipeline to be communicated with generator through solution heat exchanger, generator also has refrigerant vapour passage to be communicated with condenser, condenser also has cryogen liquid pipeline to be communicated with the second evaporimeter through cryogen liquid pump, and the second evaporimeter also has refrigerant vapour passage to be communicated with absorber; Divide steam chest to have concentrated solution pipeline to be communicated with the second absorber through the second solution pump and the second solution heat exchanger, the second absorber also has weak solution pipeline to be communicated with a minute steam chest through the second solution heat exchanger, solution choke valve and absorber, divide steam chest to also have refrigerant vapour passage to be communicated with the second condenser, the second condenser also has cryogen liquid pipeline to be communicated with evaporimeter through the second cryogen liquid pump, and evaporimeter also has refrigerant vapour passage to be communicated with the second absorber; Generator, evaporimeter and the second evaporimeter medium pipeline that also has surplus heat is respectively communicated with outside, condenser and the second condenser also have cooling medium pipeline to be communicated with outside, the second absorber also has heated medium pipeline to be communicated with outside, absorber or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
5. second-kind absorption-type heat pump along separate routes circulates, in the shunt circulation second-kind absorption-type heat pump described in the 1st, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber and to be adjusted into generator and to have concentrated solution pipeline to be communicated with the second generator through the 3rd solution heat exchanger through solution pump and solution heat exchanger in generator, the second generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger again, absorber is had weak solution pipeline to be communicated with generator through solution heat exchanger to be adjusted into absorber has weak solution pipeline to be communicated with the 3rd absorber through solution heat exchanger, the 3rd absorber has weak solution pipeline to be communicated with generator through the 3rd solution pump and the 3rd solution heat exchanger again, the second generator also has refrigerant vapour passage to be communicated with the 3rd absorber, the second generator medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
6. second-kind absorption-type heat pump along separate routes circulates, in the shunt circulation second-kind absorption-type heat pump described in the 2nd, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber and to be adjusted into generator and to have concentrated solution pipeline to be communicated with the second generator through the 3rd solution heat exchanger through solution pump and solution heat exchanger in generator, the second generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger again, absorber is had weak solution pipeline to be communicated with generator through solution heat exchanger to be adjusted into absorber has weak solution pipeline to be communicated with the 3rd absorber through solution heat exchanger, the 3rd absorber has weak solution pipeline to be communicated with generator through the 3rd solution pump and the 3rd solution heat exchanger again, the second generator also has refrigerant vapour passage to be communicated with the 3rd absorber, the second generator medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
7. second-kind absorption-type heat pump along separate routes circulates, in the shunt circulation second-kind absorption-type heat pump described in the 3rd, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber and to be adjusted into generator and to have concentrated solution pipeline to be communicated with the second generator through the 3rd solution heat exchanger through solution pump and solution heat exchanger in generator, the second generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger again, absorber is had weak solution pipeline to be communicated with generator through solution heat exchanger to be adjusted into absorber has weak solution pipeline to be communicated with the 3rd absorber through solution heat exchanger, the 3rd absorber has weak solution pipeline to be communicated with generator through the 3rd solution pump and the 3rd solution heat exchanger again, the second generator also has refrigerant vapour passage to be communicated with the 3rd absorber, the second generator medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
8. second-kind absorption-type heat pump along separate routes circulates, in the shunt circulation second-kind absorption-type heat pump described in the 4th, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber and to be adjusted into generator and to have concentrated solution pipeline to be communicated with the second generator through the 3rd solution heat exchanger through solution pump and solution heat exchanger in generator, the second generator has concentrated solution pipeline to be communicated with absorber through solution pump and solution heat exchanger again, absorber is had weak solution pipeline to be communicated with generator through solution heat exchanger to be adjusted into absorber has weak solution pipeline to be communicated with the 3rd absorber through solution heat exchanger, the 3rd absorber has weak solution pipeline to be communicated with generator through the 3rd solution pump and the 3rd solution heat exchanger again, the second generator also has refrigerant vapour passage to be communicated with the 3rd absorber, the second generator medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
Accompanying drawing explanation:
Fig. 1 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 1st kind of structure and schematic flow sheet.
Fig. 2 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 2nd kind of structure and schematic flow sheet.
Fig. 3 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 3rd kind of structure and schematic flow sheet.
Fig. 4 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 4th kind of structure and schematic flow sheet.
Fig. 5 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 5th kind of structure and schematic flow sheet.
Fig. 6 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 6th kind of structure and schematic flow sheet.
Fig. 7 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 7th kind of structure and schematic flow sheet.
Fig. 8 is according to shunt circulation second-kind absorption-type heat pump provided by the present invention the 8th kind of structure and schematic flow sheet.
In figure, 1-generator, 2-absorber, 3-the second absorber, 4-evaporimeter, 5-condenser, 6-cryogen liquid pump, 7-solution pump, 8-the second solution pump, 9-solution choke valve, 10-solution heat exchanger, 11-the second solution heat exchanger, 12-divides steam chest, 13-the second condenser, 14-the second cryogen liquid pump, 15-the second evaporimeter, 16-the second generator, 17-the 3rd absorber, 18-the 3rd solution pump, 19-the 3rd solution heat exchanger.
Here also have 2 explanations:
(1) setting of solution choke valve 9---in actual device, available solution gravitational pressure drop or pipe resistance replace it.
(2) the external heat supply of absorber 2---absorber 2 completes the heating to the solution in it of flowing through, and also can externally provide thermic load simultaneously.
The specific embodiment:
First be noted that in the statement of structure and flow process, in inessential situation, do not repeat; Apparent flow process is not explained.Below in conjunction with accompanying drawing and example, describe the present invention in detail.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 1 is achieved in that
(1), in structure, it is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger and a minute steam chest, generator 1 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10, absorber 2 also has weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10, generator 1 also has refrigerant vapour passage to be communicated with condenser 5, divide steam chest 12 to have concentrated solution pipeline to be communicated with the second absorber 3 through the second solution pump 8 and the second solution heat exchanger 11, the second absorber 3 also has weak solution pipeline through the second solution heat exchanger 11, solution choke valve 9 and absorber 2 are communicated with a minute steam chest 12, divide steam chest 12 to also have refrigerant vapour passage to be communicated with condenser 5, condenser 5 also has cryogen liquid pipeline to be communicated with evaporimeter 4 through cryogen liquid pump 6, evaporimeter 4 also has refrigerant vapour passage to be communicated with absorber 2 and the second absorber 3 respectively, generator 1 and evaporimeter 4 medium pipeline that also has surplus heat is respectively communicated with outside, and condenser 5 also has cooling medium pipeline to be communicated with outside, and the second absorber 3 in addition heated medium pipeline is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters absorber 2, absorption refrigerant vapour heat release in solution through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters generator 1 through solution heat exchanger 10, and the solution that waste heat MEDIA FLOW enters in it through generator 1, heating discharges and provides refrigerant vapour to condenser 5; Divide the concentrated solution of steam chest 12 to enter the second absorber 3, absorption refrigerant vapour heat release in heated medium through the second solution pump 8 and the second solution heat exchanger 11, the weak solution of the second absorber 3 after the second solution heat exchanger 11 decrease temperature and pressure again through solution choke valve 9 reducing pressure by regulating flows, weak solution after throttling is flowed through after the vaporization of absorber 2, heat absorbing part and is entered minute steam chest 12, and 12 releases of minute steam chest also provide refrigerant vapour to condenser 5; The refrigerant vapour heat release of condenser 5 becomes cryogen liquid in cooling medium, the cryogen liquid of condenser 5 pressurizes through cryogen liquid pump 6 and enters evaporimeter 4, absorption waste heat becomes refrigerant vapour and to absorber 2 and the second absorber 3, provides respectively, forms the second-kind absorption-type heat pump that circulates along separate routes.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 2 is achieved in that
(1), in structure, it is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second condenser and the second cryogen liquid pump, generator 1 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10, absorber 2 also has weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10, generator 1 also has refrigerant vapour passage to be communicated with condenser 5, condenser 5 also has cryogen liquid pipeline to be communicated with evaporimeter 4 through cryogen liquid pump 6, divide steam chest 12 to have concentrated solution pipeline to be communicated with the second absorber 3 through the second solution pump 8 and the second solution heat exchanger 11, the second absorber 3 also has weak solution pipeline through the second solution heat exchanger 11, solution choke valve 9 and absorber 2 are communicated with a minute steam chest 12, divide steam chest 12 to also have refrigerant vapour passage to be communicated with the second condenser 13, the second condenser 13 also has cryogen liquid pipeline to be communicated with evaporimeter 4 through the second cryogen liquid pump 14, evaporimeter 4 also has refrigerant vapour passage to be communicated with absorber 2 and the second absorber 3 respectively, generator 1 and evaporimeter 4 medium pipeline that also has surplus heat is respectively communicated with outside, and condenser 5 and the second condenser 13 also have respectively cooling medium pipeline to be communicated with outside, and the second absorber 3 in addition heated medium pipeline is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters absorber 2, absorption refrigerant vapour heat release in solution through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters generator 1 through solution heat exchanger 10, the solution that waste heat MEDIA FLOW enters in it through generator 1, heating discharges and provides refrigerant vapour to condenser 5, the refrigerant vapour heat release of condenser 5 becomes cryogen liquid in cooling medium, and the cryogen liquid of condenser 5 enters evaporimeter 4 through 6 pressurizations of cryogen liquid pump, divide the concentrated solution of steam chest 12 to enter the second absorber 3 through the second solution pump 8 and the second solution heat exchanger 11, absorb refrigerant vapour heat release in heated medium, the weak solution of the second absorber 3 after the second solution heat exchanger 11 decrease temperature and pressure again through solution choke valve 9 reducing pressure by regulating flows, weak solution after the throttling absorber 2 of flowing through, after heat absorbing part vaporization, enter minute steam chest 12, divide steam chest 12 discharge and provide refrigerant vapour to the second condenser 13, the refrigerant vapour heat release of the second condenser 13 becomes cryogen liquid in cooling medium, the cryogen liquid of the second condenser 13 enters evaporimeter 4 through the second cryogen liquid pump 14 pressurizations, the cryogen liquid of evaporimeter 4 absorbs waste heat and becomes refrigerant vapour and to absorber 2 and the second absorber 3, provide respectively, forms the second-kind absorption-type heat pump that circulates along separate routes.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 3 is achieved in that
(1), in structure, it is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second cryogen liquid pump and the second evaporimeter, generator 1 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10, absorber 2 also has weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10, generator 1 also has refrigerant vapour passage to be communicated with condenser 5, divide steam chest 12 to have concentrated solution pipeline to be communicated with the second absorber 3 through the second solution pump 8 and the second solution heat exchanger 11, the second absorber 3 also has weak solution pipeline through the second solution heat exchanger 11, solution choke valve 9 and absorber 2 are communicated with a minute steam chest 12, divide steam chest 12 to also have refrigerant vapour passage to be communicated with condenser 5, condenser 5 also has cryogen liquid pipeline to be communicated with evaporimeter 4 through cryogen liquid pump 6, evaporimeter 4 also has refrigerant vapour passage to be communicated with the second absorber 3, condenser 5 also has cryogen liquid pipeline to be communicated with the second evaporimeter 15 through the second cryogen liquid pump 14, the second evaporimeter 15 also has refrigerant vapour passage to be communicated with absorber 2, generator 1, evaporimeter 4 and the second evaporimeter 15 medium pipeline that also has surplus heat is respectively communicated with outside, and condenser 5 also has cooling medium pipeline to be communicated with outside, and the second absorber 3 in addition heated medium pipeline is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters absorber 2, absorption refrigerant vapour heat release in solution through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters generator 1 through solution heat exchanger 10, and the solution that waste heat MEDIA FLOW enters in it through generator 1, heating discharges and provides refrigerant vapour to condenser 5; Divide the concentrated solution of steam chest 12 to enter the second absorber 3, absorption refrigerant vapour heat release in heated medium through the second solution pump 8 and the second solution heat exchanger 11, the weak solution of the second absorber 3 after the second solution heat exchanger 11 decrease temperature and pressure again through solution choke valve 9 reducing pressure by regulating flows, weak solution after throttling is flowed through after the vaporization of absorber 2, heat absorbing part and is entered minute steam chest 12, and 12 releases of minute steam chest also provide refrigerant vapour to condenser 5; The refrigerant vapour heat release of condenser 5 becomes cryogen liquid in cooling medium, the cryogen liquid of condenser 5 is divided into two-way---and the first via is pressurizeed through cryogen liquid pump 6 and is entered evaporimeter 4, absorption waste heat becomes refrigerant vapour and provides to the second absorber 3, second tunnel the second cryogen liquid pump 14 pressurizations enter the second evaporimeter 15, absorption waste heat becomes refrigerant vapour and provides to absorber 2, forms the second-kind absorption-type heat pump that circulates along separate routes.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 4 is achieved in that
(1), in structure, it is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second condenser, the second cryogen liquid pump and the second evaporimeter; Generator 1 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10, absorber 2 also has weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10, generator 1 also has refrigerant vapour passage to be communicated with condenser 5, condenser 5 also has cryogen liquid pipeline to be communicated with the second evaporimeter 15 through cryogen liquid pump 6, and the second evaporimeter 15 also has refrigerant vapour passage to be communicated with absorber 2; Divide steam chest 12 to have concentrated solution pipeline to be communicated with the second absorber 3 through the second solution pump 8 and the second solution heat exchanger 11, the second absorber 3 also has weak solution pipeline to be communicated with a minute steam chest 12 through the second solution heat exchanger 11, solution choke valve 9 and absorber 2, divide steam chest 12 to also have refrigerant vapour passage to be communicated with the second condenser 13, the second condenser 13 also has cryogen liquid pipeline to be communicated with evaporimeter 4 through the second cryogen liquid pump 14, and evaporimeter 4 also has refrigerant vapour passage to be communicated with the second absorber 3; Generator 1, evaporimeter 4 and the second evaporimeter 15 medium pipeline that also has surplus heat is respectively communicated with outside, and condenser 5 and the second condenser 13 also have cooling medium pipeline to be communicated with outside, and the second absorber 3 in addition heated medium pipeline is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters absorber 2, absorption refrigerant vapour heat release in solution through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters generator 1 through solution heat exchanger 10, the solution that waste heat MEDIA FLOW enters in it through generator 1, heating discharges and provides refrigerant vapour to condenser 5, the refrigerant vapour heat release of condenser 5 becomes cryogen liquid in cooling medium, and the cryogen liquid of condenser 5 pressurizes through cryogen liquid pump 6 and enters the second evaporimeter 15, absorption waste heat becomes refrigerant vapour and provides to absorber 2, divide the concentrated solution of steam chest 12 to enter the second absorber 3 through the second solution pump 8 and the second solution heat exchanger 11, absorb refrigerant vapour heat release in heated medium, the weak solution of the second absorber 3 after the second solution heat exchanger 11 decrease temperature and pressure again through solution choke valve 9 reducing pressure by regulating flows, weak solution after the throttling absorber 2 of flowing through, after heat absorbing part vaporization, enter minute steam chest 12, divide steam chest 12 discharge and provide refrigerant vapour to the second condenser 13, the refrigerant vapour heat release of the second condenser 13 becomes cryogen liquid in cooling medium, the cryogen liquid of the second condenser 13 enters evaporimeter 4 through the second cryogen liquid pump 14 pressurizations, absorbing waste heat becomes refrigerant vapour and provides to the second absorber 3, form the second-kind absorption-type heat pump that circulates along separate routes.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 5 is achieved in that
(1) in structure, in the shunt circulation second-kind absorption-type heat pump shown in Fig. 1, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber 2 and to be adjusted into generator 1 and to have concentrated solution pipeline to be communicated with the second generator 16 through the 3rd solution heat exchanger 19 through solution pump 7 and solution heat exchanger 10 in generator 1, the second generator 16 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10 again, absorber 2 is had weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10 to be adjusted into absorber 2 has weak solution pipeline to be communicated with the 3rd absorber 17 through solution heat exchanger 10, the 3rd absorber 17 has weak solution pipeline to be communicated with generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19 again, the second generator 16 also has refrigerant vapour passage to be communicated with the 3rd absorber 17, the second generator 16 medium pipeline that also has surplus heat is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters the second generator 16 through the 3rd solution heat exchanger 19, waste heat MEDIA FLOW is through the second generator 16, the solution that heating enters in it discharges and provides refrigerant vapour to the 3rd absorber 17, the concentrated solution of the second generator 16 enters absorber 2 through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters the 3rd absorber 17 through solution heat exchanger 10, absorb refrigerant vapour heat release in cooling medium, the weak solution of the 3rd absorber 17 enters generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19, form the second-kind absorption-type heat pump that circulates along separate routes.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 6 is achieved in that
(1) in structure, in the shunt circulation second-kind absorption-type heat pump shown in Fig. 2, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber 2 and to be adjusted into generator 1 and to have concentrated solution pipeline to be communicated with the second generator 16 through the 3rd solution heat exchanger 19 through solution pump 7 and solution heat exchanger 10 in generator 1, the second generator 16 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10 again, absorber 2 is had weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10 to be adjusted into absorber 2 has weak solution pipeline to be communicated with the 3rd absorber 17 through solution heat exchanger 10, the 3rd absorber 17 has weak solution pipeline to be communicated with generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19 again, the second generator 16 also has refrigerant vapour passage to be communicated with the 3rd absorber 17, the second generator 16 medium pipeline that also has surplus heat is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters the second generator 16 through the 3rd solution heat exchanger 19, waste heat MEDIA FLOW is through the second generator 16, the solution that heating enters in it discharges and provides refrigerant vapour to the 3rd absorber 17, the concentrated solution of the second generator 16 enters absorber 2 through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters the 3rd absorber 17 through solution heat exchanger 10, absorb refrigerant vapour heat release in cooling medium, the weak solution of the 3rd absorber 17 enters generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19, form the second-kind absorption-type heat pump that circulates along separate routes.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 7 is achieved in that
(1) in structure, in the shunt circulation second-kind absorption-type heat pump shown in Fig. 3, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber 2 and to be adjusted into generator 1 and to have concentrated solution pipeline to be communicated with the second generator 16 through the 3rd solution heat exchanger 19 through solution pump 7 and solution heat exchanger 10 in generator 1, the second generator 16 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10 again, absorber 2 is had weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10 to be adjusted into absorber 2 has weak solution pipeline to be communicated with the 3rd absorber 17 through solution heat exchanger 10, the 3rd absorber 17 has weak solution pipeline to be communicated with generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19 again, the second generator 16 also has refrigerant vapour passage to be communicated with the 3rd absorber 17, the second generator 16 medium pipeline that also has surplus heat is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters the second generator 16 through the 3rd solution heat exchanger 19, waste heat MEDIA FLOW is through the second generator 16, the solution that heating enters in it discharges and provides refrigerant vapour to the 3rd absorber 17, the concentrated solution of the second generator 16 enters absorber 2 through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters the 3rd absorber 17 through solution heat exchanger 10, absorb refrigerant vapour heat release in cooling medium, the weak solution of the 3rd absorber 17 enters generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19, form the second-kind absorption-type heat pump that circulates along separate routes.
Shunt circulation second-kind absorption-type heat pump shown in Fig. 8 is achieved in that
(1) in structure, in the shunt circulation second-kind absorption-type heat pump shown in Fig. 4, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber 2 and to be adjusted into generator 1 and to have concentrated solution pipeline to be communicated with the second generator 16 through the 3rd solution heat exchanger 19 through solution pump 7 and solution heat exchanger 10 in generator 1, the second generator 16 has concentrated solution pipeline to be communicated with absorber 2 through solution pump 7 and solution heat exchanger 10 again, absorber 2 is had weak solution pipeline to be communicated with generator 1 through solution heat exchanger 10 to be adjusted into absorber 2 has weak solution pipeline to be communicated with the 3rd absorber 17 through solution heat exchanger 10, the 3rd absorber 17 has weak solution pipeline to be communicated with generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19 again, the second generator 16 also has refrigerant vapour passage to be communicated with the 3rd absorber 17, the second generator 16 medium pipeline that also has surplus heat is communicated with outside.
(2) in flow process, the concentrated solution of generator 1 enters the second generator 16 through the 3rd solution heat exchanger 19, waste heat MEDIA FLOW is through the second generator 16, the solution that heating enters in it discharges and provides refrigerant vapour to the 3rd absorber 17, the concentrated solution of the second generator 16 enters absorber 2 through solution pump 7 and solution heat exchanger 10, the weak solution of absorber 2 enters the 3rd absorber 17 through solution heat exchanger 10, absorb refrigerant vapour heat release in cooling medium, the weak solution of the 3rd absorber 17 enters generator 1 through the 3rd solution pump 18 and the 3rd solution heat exchanger 19, form the second-kind absorption-type heat pump that circulates along separate routes.
The effect that the technology of the present invention can realize---shunt circulation second-kind absorption-type heat pump proposed by the invention has following effect and advantage:
(1) residual heat resources thermic load realizes effective temperature-reducing twice, makes to be utilized residual heat resources thermic load and promotes higher temperature, is conducive to the degree of depth of residual heat resources and makes full use of.
(2) solution circulates along separate routes, is conducive to the parameter allotment of working media, to rationally utilizing residual heat resources and rationally heat supply to offer convenience.
(3) two condensers of configuration, are conducive to reduce residual heat resources temperature requirement, improve residual heat resources utilization rate.
(4) two evaporimeters of configuration, higher temperature value and raising residual heat resources utilization rate partly in the resource that is conducive to bring extra power into play.
(5) different working solutions circulates respectively with corresponding refrigerant medium, can expand working range, can increase effective temperature drop amplitude of residual heat resources, improves heat supply temperature.
(6) configuration the second generator and the 3rd absorber, can further realize the degree of depth of residual heat resources and make full use of.
(7) enriched the type of second-kind absorption-type heat pump, expanded the range of application of second-kind absorption-type heat pump, be conducive to adopt better second-kind absorption-type heat pump to improve heat utilization rate.
Claims (8)
1. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger and a minute steam chest, generator (1) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10), absorber (2) also has weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10), generator (1) also has refrigerant vapour passage to be communicated with condenser (5), divide steam chest (12) to have concentrated solution pipeline to be communicated with the second absorber (3) through the second solution pump (8) and the second solution heat exchanger (11), the second absorber (3) also has weak solution pipeline through the second solution heat exchanger (11), solution choke valve (9) and absorber (2) are communicated with a minute steam chest (12), divide steam chest (12) to also have refrigerant vapour passage to be communicated with condenser (5), condenser (5) also has cryogen liquid pipeline to be communicated with evaporimeter (4) through cryogen liquid pump (6), evaporimeter (4) also has refrigerant vapour passage to be communicated with absorber (2) and the second absorber (3) respectively, generator (1) and evaporimeter (4) medium pipeline that also has surplus heat is respectively communicated with outside, condenser (5) also has cooling medium pipeline to be communicated with outside, the second absorber (3) also has heated medium pipeline to be communicated with outside, absorber (2) or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
2. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second condenser and the second cryogen liquid pump, generator (1) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10), absorber (2) also has weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10), generator (1) also has refrigerant vapour passage to be communicated with condenser (5), condenser (5) also has cryogen liquid pipeline to be communicated with evaporimeter (4) through cryogen liquid pump (6), divide steam chest (12) to have concentrated solution pipeline to be communicated with the second absorber (3) through the second solution pump (8) and the second solution heat exchanger (11), the second absorber (3) also has weak solution pipeline through the second solution heat exchanger (11), solution choke valve (9) and absorber (2) are communicated with a minute steam chest (12), divide steam chest (12) to also have refrigerant vapour passage to be communicated with the second condenser (13), the second condenser (13) also has cryogen liquid pipeline to be communicated with evaporimeter (4) through the second cryogen liquid pump (14), evaporimeter (4) also has refrigerant vapour passage to be communicated with absorber (2) and the second absorber (3) respectively, generator (1) and evaporimeter (4) medium pipeline that also has surplus heat is respectively communicated with outside, condenser (5) and the second condenser (13) also have respectively cooling medium pipeline to be communicated with outside, the second absorber (3) also has heated medium pipeline to be communicated with outside, absorber (2) or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
3. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second cryogen liquid pump and the second evaporimeter, generator (1) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10), absorber (2) also has weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10), generator (1) also has refrigerant vapour passage to be communicated with condenser (5), divide steam chest (12) to have concentrated solution pipeline to be communicated with the second absorber (3) through the second solution pump (8) and the second solution heat exchanger (11), the second absorber (3) also has weak solution pipeline through the second solution heat exchanger (11), solution choke valve (9) and absorber (2) are communicated with a minute steam chest (12), divide steam chest (12) to also have refrigerant vapour passage to be communicated with condenser (5), condenser (5) also has cryogen liquid pipeline to be communicated with evaporimeter (4) through cryogen liquid pump (6), evaporimeter (4) also has refrigerant vapour passage to be communicated with the second absorber (3), condenser (5) also has cryogen liquid pipeline to be communicated with the second evaporimeter (15) through the second cryogen liquid pump (14), the second evaporimeter (15) also has refrigerant vapour passage to be communicated with absorber (2): generator (1), evaporimeter (4) and the second evaporimeter (15) medium pipeline that also has surplus heat is respectively communicated with outside, condenser (5) also has cooling medium pipeline to be communicated with outside, the second absorber (3) also has heated medium pipeline to be communicated with outside, absorber (2) or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
4. the second-kind absorption-type heat pump that circulates along separate routes, is mainly comprised of generator, absorber, the second absorber, evaporimeter, condenser, cryogen liquid pump, solution pump, the second solution pump, solution choke valve, solution heat exchanger, the second solution heat exchanger, minute steam chest, the second condenser, the second cryogen liquid pump and the second evaporimeter; Generator (1) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10), absorber (2) also has weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10), generator (1) also has refrigerant vapour passage to be communicated with condenser (5), condenser (5) also has cryogen liquid pipeline to be communicated with the second evaporimeter (15) through cryogen liquid pump (6), and the second evaporimeter (15) also has refrigerant vapour passage to be communicated with absorber (2); divide steam chest (12) to have concentrated solution pipeline to be communicated with the second absorber (3) through the second solution pump (8) and the second solution heat exchanger (11), the second absorber (3) also has weak solution pipeline through the second solution heat exchanger (11), solution choke valve (9) and absorber (2) are communicated with a minute steam chest (12), divide steam chest (12) to also have refrigerant vapour passage to be communicated with the second condenser (13), the second condenser (13) also has cryogen liquid pipeline to be communicated with evaporimeter (4) through the second cryogen liquid pump (14), evaporimeter (4) also has refrigerant vapour passage to be communicated with the second absorber (3), generator (1), evaporimeter (4) and the second evaporimeter (15) medium pipeline that also has surplus heat is respectively communicated with outside, condenser (5) and the second condenser (13) also have cooling medium pipeline to be communicated with outside, the second absorber (3) also has heated medium pipeline to be communicated with outside, absorber (2) or in addition heated medium pipeline are communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
5. second-kind absorption-type heat pump along separate routes circulates, in shunt circulation second-kind absorption-type heat pump claimed in claim 1, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber (2) and to be adjusted into generator (1) and to have concentrated solution pipeline to be communicated with the second generator (16) through the 3rd solution heat exchanger (19) through solution pump (7) and solution heat exchanger (10) in generator (1), the second generator (16) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10) again, absorber (2) is had weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10) to be adjusted into absorber (2) has weak solution pipeline to be communicated with the 3rd absorber (17) through solution heat exchanger (10), the 3rd absorber (17) has weak solution pipeline to be communicated with generator (1) through the 3rd solution pump (18) and the 3rd solution heat exchanger (19) again, the second generator (16) also has refrigerant vapour passage to be communicated with the 3rd absorber (17), the second generator (16) medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
6. second-kind absorption-type heat pump along separate routes circulates, in shunt circulation second-kind absorption-type heat pump claimed in claim 2, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber (2) and to be adjusted into generator (1) and to have concentrated solution pipeline to be communicated with the second generator (16) through the 3rd solution heat exchanger (19) through solution pump (7) and solution heat exchanger (10) in generator (1), the second generator (16) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10) again, absorber (2) is had weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10) to be adjusted into absorber (2) has weak solution pipeline to be communicated with the 3rd absorber (17) through solution heat exchanger (10), the 3rd absorber (17) has weak solution pipeline to be communicated with generator (1) through the 3rd solution pump (18) and the 3rd solution heat exchanger (19) again, the second generator (16) also has refrigerant vapour passage to be communicated with the 3rd absorber (17), the second generator (16) medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
7. second-kind absorption-type heat pump along separate routes circulates, in shunt circulation second-kind absorption-type heat pump claimed in claim 3, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber (2) and to be adjusted into generator (1) and to have concentrated solution pipeline to be communicated with the second generator (16) through the 3rd solution heat exchanger (19) through solution pump (7) and solution heat exchanger (10) in generator (1), the second generator (16) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10) again, absorber (2) is had weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10) to be adjusted into absorber (2) has weak solution pipeline to be communicated with the 3rd absorber (17) through solution heat exchanger (10), the 3rd absorber (17) has weak solution pipeline to be communicated with generator (1) through the 3rd solution pump (18) and the 3rd solution heat exchanger (19) again, the second generator (16) also has refrigerant vapour passage to be communicated with the 3rd absorber (17), the second generator (16) medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
8. second-kind absorption-type heat pump along separate routes circulates, in shunt circulation second-kind absorption-type heat pump claimed in claim 4, increase by the second generator, the 3rd absorber, the 3rd solution pump and the 3rd solution heat exchanger, there is concentrated solution pipeline to be communicated with absorber (2) and to be adjusted into generator (1) and to have concentrated solution pipeline to be communicated with the second generator (16) through the 3rd solution heat exchanger (19) through solution pump (7) and solution heat exchanger (10) in generator (1), the second generator (16) has concentrated solution pipeline to be communicated with absorber (2) through solution pump (7) and solution heat exchanger (10) again, absorber (2) is had weak solution pipeline to be communicated with generator (1) through solution heat exchanger (10) to be adjusted into absorber (2) has weak solution pipeline to be communicated with the 3rd absorber (17) through solution heat exchanger (10), the 3rd absorber (17) has weak solution pipeline to be communicated with generator (1) through the 3rd solution pump (18) and the 3rd solution heat exchanger (19) again, the second generator (16) also has refrigerant vapour passage to be communicated with the 3rd absorber (17), the second generator (16) medium pipeline that also has surplus heat is communicated with outside, form the second-kind absorption-type heat pump that circulates along separate routes.
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