CN115355629A - Third/fourth absorption heat pump - Google Patents
Third/fourth absorption heat pump Download PDFInfo
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- CN115355629A CN115355629A CN202110233241.0A CN202110233241A CN115355629A CN 115355629 A CN115355629 A CN 115355629A CN 202110233241 A CN202110233241 A CN 202110233241A CN 115355629 A CN115355629 A CN 115355629A
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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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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention provides a third/fourth absorption heat pump, belonging to the technical field of absorption heat pumps. The absorber is communicated with a second absorber through a solution heat exchanger, the second absorber is communicated with a generator through a solution pump and a second solution heat exchanger, the generator is communicated with a second generator through the second solution heat exchanger, the second generator is communicated with the absorber through the second solution pump and the solution heat exchanger, the generator is also communicated with a condenser through a refrigerant steam channel, the second generator is also communicated with the second absorber through a refrigerant steam channel, the condenser is also communicated with an evaporator through a spray pipe, the evaporator is also communicated with the absorber through a diffuser pipe, the generator is communicated with the outside through a high-temperature heat medium pipeline, the absorber and the condenser are respectively communicated with the outside through heated medium pipelines, the second generator and the evaporator are respectively communicated with the outside through low-temperature heat medium pipelines, and the second absorber is communicated with the outside through a cooling medium pipeline to form a third-type absorption heat pump.
Description
The technical field is as follows:
the invention belongs to the technical field of absorption heat pumps.
Background art:
the requirements of cold, heat, power and the like are common in human life and production; in reality, people often need to use high-temperature heat energy to realize refrigeration, heat supply or power conversion, and also need to use power to refrigerate or use power and combine low-temperature heat energy to supply heat, or use heat energy and mechanical energy to refrigerate. In achieving the above objects, various considerations or conditional limitations are faced, including the type, grade and quantity of energy sources, the type, grade and quantity of user demands, ambient temperature, the type of working medium, the flow, structure and manufacturing cost of the equipment, and so on.
A heat energy (temperature difference) utilization technology represented by an absorption heat pump technology utilizes a high-temperature heat load to realize heat supply or refrigeration, and a single machine has larger load generally; the condensate depressurization process not only relates to the recovery of the pressure difference energy of the condensate, but also is related to the acquisition of the low-temperature heat load, and influences the requirement on the latent heat of the refrigerant liquid to a certain extent, so that the problem of the recovery of the condensed hydraulic pressure difference energy is more and more an important factor which is worthy of attention in the technical field of absorption heat pumps. According to the invention, by adopting a technical measure of combining the spray pipe and the diffuser pipe, the high-efficiency recovery of the condensed hydraulic pressure difference energy is realized, and the effect of multiple purposes, namely simple technology and high recovery efficiency, is achieved, the low-temperature heat load acquisition amount is increased, the latent heat influence of a refrigerant medium is reduced, and the system performance index is improved.
The invention content is as follows:
the invention mainly aims to provide a third/fourth absorption heat pump, and the specific contents of the invention are explained in terms of:
1. the third kind of absorption heat pump mainly comprises a generator, a second generator, an absorber, a second absorber, a condenser, an evaporator, a spray pipe, a diffuser pipe, a solution pump, a second solution pump, a solution heat exchanger and a second solution heat exchanger; the absorber is provided with a dilute solution pipeline which is communicated with a second absorber through a solution heat exchanger, the second absorber is also provided with a dilute solution pipeline which is communicated with a generator through a solution pump and a second solution heat exchanger, the generator is also provided with a concentrated solution pipeline which is communicated with a second generator through the second solution heat exchanger, the second generator is also provided with a concentrated solution pipeline which is communicated with the absorber through the second solution pump and the solution heat exchanger, the generator is also provided with a refrigerant steam channel which is communicated with a condenser, the second generator is also provided with a refrigerant steam channel which is communicated with the second absorber, the condenser is also provided with a refrigerant liquid pipeline which is communicated with an evaporator through a spray pipe, the evaporator is also provided with a refrigerant steam channel which is communicated with the absorber through a diffuser pipe, the generator is also provided with a high-temperature heat medium pipeline which is communicated with the outside, the absorber and the condenser are also respectively communicated with the outside through heated medium pipelines, the second generator and the evaporator are also respectively communicated with the outside through low-temperature heat medium pipelines, and the second absorber is also provided with a cooling medium pipeline which is communicated with the outside to form a third type absorption heat pump.
2. The fourth type absorption heat pump mainly comprises a generator, a second generator, an absorber, a second absorber, a condenser, an evaporator, a spray pipe, a diffuser pipe, a solution pump, a second solution pump, a solution heat exchanger and a second solution heat exchanger; the absorber is provided with a dilute solution pipeline communicated with a second absorber through a solution heat exchanger, the second absorber is also provided with a dilute solution pipeline communicated with a generator through a solution pump and a second solution heat exchanger, the generator is also provided with a concentrated solution pipeline communicated with a second generator through the second solution heat exchanger, the second generator is also provided with a concentrated solution pipeline communicated with the absorber through the second solution pump and the solution heat exchanger, the generator is also provided with a refrigerant steam channel communicated with a condenser, the second generator is also provided with a refrigerant steam channel communicated with the second absorber, the condenser is also provided with a refrigerant liquid pipeline communicated with the second generator, then the second generator is further provided with a refrigerant liquid pipeline communicated with an evaporator through a spray pipe, the evaporator is also provided with a refrigerant steam channel communicated with the absorber through a diffuser pipe, the generator is also provided with a high-temperature heat medium pipeline communicated with the outside, the absorber and the condenser are also respectively communicated with the outside through heated medium pipelines, the evaporator is also provided with the outside through a low-temperature heat medium pipeline, the second absorber is also provided with a cooling medium pipeline communicated with the outside, and a fourth-type absorption heat pump is formed.
Description of the drawings:
fig. 1 is a schematic diagram of a third type absorption heat pump according to the present invention.
Fig. 2 is a schematic diagram of a fourth type absorption heat pump according to the present invention.
In the figure, 1-generator, 2-second generator, 3-absorber, 4-second absorber, 5-condenser, 6-evaporator, 7-spray pipe, 8-diffuser pipe, 9-solution pump, 10-second solution pump, 11-solution heat exchanger, 12-second solution heat exchanger.
The specific implementation mode is as follows:
it is to be noted that, in the description of the structure and the flow, the description is not repeated if necessary; obvious procedures are not described. The invention is described in detail below with reference to the figures and examples.
The third type absorption heat pump shown in fig. 1 is realized by the following steps:
(1) Structurally, the system mainly comprises a generator, a second generator, an absorber, a second absorber, a condenser, an evaporator, a spray pipe, a diffuser pipe, a solution pump, a second solution pump, a solution heat exchanger and a second solution heat exchanger; the absorber 3 is provided with a dilute solution pipeline which is communicated with the second absorber 4 through a solution heat exchanger 11, the second absorber 4 is also provided with a dilute solution pipeline which is communicated with the generator 1 through a solution pump 9 and a second solution heat exchanger 12, the generator 1 is also provided with a concentrated solution pipeline which is communicated with the second generator 2 through a second solution heat exchanger 12, the second generator 2 is also provided with a concentrated solution pipeline which is communicated with the absorber 3 through a second solution pump 10 and the solution heat exchanger 11, the generator 1 is also provided with a refrigerant steam channel which is communicated with the condenser 5, the second generator 2 is also provided with a refrigerant steam channel which is communicated with the second absorber 4, the condenser 5 is also provided with a refrigerant liquid pipeline which is communicated with the evaporator 6 through a spray pipe 7, the evaporator 6 is also provided with a refrigerant steam channel which is communicated with the absorber 3 through a diffuser pipe 8, the generator 1 is also provided with a high-temperature heat medium pipeline which is communicated with the outside, the absorber 3 and the condenser 5 are also provided with a heated medium pipeline which is communicated with the outside respectively, the second generator 2 and the evaporator 6 are also provided with a low-temperature heat medium pipeline which is communicated with the outside, and the second absorber 4 is also provided with a cooling medium pipeline which is communicated with the outside.
(2) In the process, dilute solution in the absorber 3 enters the second absorber 4 through the solution heat exchanger 11, absorbs refrigerant vapor and releases heat to a cooling medium, dilute solution in the second absorber 4 enters the generator 1 through the solution pump 9 and the second solution heat exchanger 12, a high-temperature heat medium flows through the generator 1, heats the solution entering the generator 1 to release the refrigerant vapor and provides the refrigerant vapor to the condenser 5, concentrated solution in the generator 1 enters the second generator 2 through the second solution heat exchanger 12, a low-temperature heat medium flows through the second generator 2, heats the solution entering the generator to release the refrigerant vapor and provides the refrigerant vapor to the second absorber 4, and concentrated solution in the second generator 2 enters the absorber 3 through the second solution pump 10 and the solution heat exchanger 11, absorbs the refrigerant vapor and releases heat to a heated medium; the refrigerant steam of the condenser 5 releases heat to a heated medium to form refrigerant liquid, the refrigerant liquid flows through the spray pipe 7 to be depressurized and accelerated, enters the evaporator 6 to absorb heat to form the refrigerant steam, and the refrigerant steam released by the evaporator 6 flows through the diffuser pipe 8 to be depressurized and pressurized and then is provided for the absorber 3 to form a third-type absorption heat pump.
The fourth type absorption heat pump shown in fig. 2 is realized by the following steps:
(1) Structurally, the system mainly comprises a generator, a second generator, an absorber, a second absorber, a condenser, an evaporator, a spray pipe, a diffuser pipe, a solution pump, a second solution pump, a solution heat exchanger and a second solution heat exchanger; the absorber 3 is provided with a dilute solution pipeline which is communicated with the second absorber 4 through a solution heat exchanger 11, the second absorber 4 is also provided with a dilute solution pipeline which is communicated with the generator 1 through a solution pump 9 and a second solution heat exchanger 12, the generator 1 is also provided with a concentrated solution pipeline which is communicated with the second generator 2 through a second solution heat exchanger 12, the second generator 2 is also provided with a concentrated solution pipeline which is communicated with the absorber 3 through a second solution pump 10 and the solution heat exchanger 11, the generator 1 is also provided with a refrigerant steam channel which is communicated with the condenser 5, the second generator 2 is also provided with a refrigerant steam channel which is communicated with the second absorber 4, the condenser 5 is also provided with a refrigerant liquid pipeline which is communicated with the outside after being communicated with the second generator 2, the evaporator 2 is also provided with a refrigerant liquid pipeline which is communicated with the evaporator 6 through a spray pipe 7, the evaporator 6 is also provided with a refrigerant steam channel which is communicated with the absorber 3 through a diffuser pipe 8, the generator 1 is also provided with a high-temperature heat medium pipeline which is communicated with the outside, the absorber 3 and the condenser 5 are also provided with a heated medium pipeline which is communicated with the outside, the evaporator 6 is also provided with a low-temperature heat medium pipeline which is communicated with the outside, and the second absorber 4.
(2) In the process, dilute solution in the absorber 3 enters the second absorber 4 through the solution heat exchanger 11, absorbs refrigerant vapor and releases heat to a cooling medium, dilute solution in the second absorber 4 enters the generator 1 through the solution pump 9 and the second solution heat exchanger 12, a high-temperature heat medium flows through the generator 1, heats the solution entering the generator 1, releases the refrigerant vapor and provides the refrigerant vapor to the condenser 5, concentrated solution in the generator 1 enters the second generator 2 through the second solution heat exchanger 12, absorbs heat, releases the refrigerant vapor and provides the refrigerant vapor to the second absorber 4, and concentrated solution in the second generator 2 enters the absorber 3 through the second solution pump 10 and the solution heat exchanger 11, absorbs the refrigerant vapor and releases heat to the heated medium; the refrigerant steam of the condenser 5 releases heat to the heated medium to form refrigerant liquid, the refrigerant liquid flows through the second generator 2 for heat release and temperature reduction, then enters the evaporator 6 through the spray pipe 7 for pressure reduction and speed increase, absorbs heat to form the refrigerant steam, the refrigerant steam released by the evaporator 6 flows through the diffuser pipe 8 for speed reduction and pressure increase and then is provided for the absorber 3, and a fourth-type absorption heat pump is formed.
The effect that the technology of the invention can realize-the third and fourth absorption heat pumps provided by the invention have the following effects and advantages:
(1) Provides a new idea and a new technology for utilizing the refrigerant hydraulic pressure difference in the absorption heat pump technology.
(2) The utilization equipment of the refrigerant hydraulic pressure difference is simplified and efficient.
(3) The adverse effect on low-temperature heat load acquisition after the pressure of the refrigerant liquid is reduced, and the low-temperature heat load acquisition amount is improved.
(4) The refrigerant hydraulic pressure difference is converted into low-pressure refrigerant steam for boosting, and the technology is simple and efficient.
(5) The pressure difference energy is utilized, the low-temperature heat load acquisition amount is increased, the external mechanical energy input is reduced, and the performance index is improved.
(6) The requirement on latent heat of refrigerant media is reduced, and the selection of working media is facilitated.
(7) The heat pump technology is expanded, the types of the absorption heat pumps are enriched, and the efficient utilization of heat energy is favorably realized.
Claims (2)
1. The third type absorption heat pump mainly comprises a generator, a second generator, an absorber, a second absorber, a condenser, an evaporator, a spray pipe, a diffuser pipe, a solution pump, a second solution pump, a solution heat exchanger and a second solution heat exchanger; the absorber (3) is provided with a dilute solution pipeline which is communicated with the second absorber (4) through a solution heat exchanger (11), the second absorber (4) is also provided with a dilute solution pipeline which is communicated with the generator (1) through a solution pump (9) and a second solution heat exchanger (12), the generator (1) is also provided with a concentrated solution pipeline which is communicated with the second generator (2) through the second solution heat exchanger (12), the second generator (2) is also provided with a concentrated solution pipeline which is communicated with the absorber (3) through a second solution pump (10) and the solution heat exchanger (11), the generator (1) is also provided with a refrigerant steam channel which is communicated with the condenser (5), the second generator (2) is also provided with a refrigerant steam channel which is communicated with the second absorber (4), the condenser (5) is also provided with a refrigerant liquid pipeline which is communicated with the evaporator (6) through a spray pipe (7), the evaporator (6) is also provided with the absorber (3) through a diffuser pipe (8), the generator (1) is also provided with a high-temperature heat medium pipeline which is communicated with the outside, the condenser (3) and the second absorber (5) are also provided with a heating medium pipeline which is communicated with the second absorber (2) and a low-temperature heat pump, and the third absorber (6) are also communicated with the absorption medium absorption pipeline which are respectively communicated with the absorption absorber (2).
2. The fourth type absorption heat pump mainly comprises a generator, a second generator, an absorber, a second absorber, a condenser, an evaporator, a spray pipe, a diffuser pipe, a solution pump, a second solution pump, a solution heat exchanger and a second solution heat exchanger; the absorber (3) is provided with a dilute solution pipeline which is communicated with the second absorber (4) through a solution heat exchanger (11), the second absorber (4) is also provided with a dilute solution pipeline which is communicated with the generator (1) through a solution pump (9) and a second solution heat exchanger (12), the generator (1) is also provided with a concentrated solution pipeline which is communicated with the second generator (2) through the second solution heat exchanger (12), the second generator (2) is also provided with a concentrated solution pipeline which is communicated with the absorber (3) through a second solution pump (10) and the solution heat exchanger (11), the generator (1) is also provided with a refrigerant steam channel which is communicated with the condenser (5), the second generator (2) is also provided with a refrigerant steam channel which is communicated with the second absorber (4), the condenser (5) is also provided with a refrigerant liquid pipeline which is communicated with the second generator (2) after being communicated with the second generator (2) through a spray pipe (7) and is communicated with the evaporator (6), the evaporator (6) is also provided with a refrigerant steam channel which is communicated with the absorber (3) through a diffuser pipe (8), the generator (1) is also provided with a high-temperature medium pipeline which is also communicated with the external heat medium, the absorber (3) and the external heat medium, the external heat exchanger (6) are also communicated with the external heat exchanger (6), forming a fourth type absorption heat pump.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020101423189 | 2020-02-21 | ||
| CN202010142318 | 2020-02-21 |
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| CN115355629A true CN115355629A (en) | 2022-11-18 |
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| CN202110233241.0A Pending CN115355629A (en) | 2020-02-21 | 2021-02-19 | Third/fourth absorption heat pump |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105346A (en) * | 2007-08-23 | 2008-01-16 | 广东西屋康达空调有限公司 | Frequency conversion magnetic levitation compression expansion engine set |
| CN202630243U (en) * | 2012-03-27 | 2012-12-26 | 中南大学 | Domestic and commercial air conditioner return-air pressurization energy-saving device |
| CN104729136A (en) * | 2015-03-02 | 2015-06-24 | 无锡雪浪环境科技股份有限公司 | Circulating refrigerating method and refrigerating circulating system thereof |
| CN104807239A (en) * | 2014-03-27 | 2015-07-29 | 李华玉 | Absorption heat pump of fourth class and absorption heat pump of fifth class |
| CN106225307A (en) * | 2015-11-27 | 2016-12-14 | 李华玉 | First kind thermal drivers compression absorption heat pump |
| CN106766352A (en) * | 2016-11-12 | 2017-05-31 | 浙江理工大学 | Steam jet type cooling device and its refrigerating method that heat/work(joint drives |
-
2021
- 2021-02-19 CN CN202110233241.0A patent/CN115355629A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105346A (en) * | 2007-08-23 | 2008-01-16 | 广东西屋康达空调有限公司 | Frequency conversion magnetic levitation compression expansion engine set |
| CN202630243U (en) * | 2012-03-27 | 2012-12-26 | 中南大学 | Domestic and commercial air conditioner return-air pressurization energy-saving device |
| CN104807239A (en) * | 2014-03-27 | 2015-07-29 | 李华玉 | Absorption heat pump of fourth class and absorption heat pump of fifth class |
| CN104729136A (en) * | 2015-03-02 | 2015-06-24 | 无锡雪浪环境科技股份有限公司 | Circulating refrigerating method and refrigerating circulating system thereof |
| CN106225307A (en) * | 2015-11-27 | 2016-12-14 | 李华玉 | First kind thermal drivers compression absorption heat pump |
| CN106766352A (en) * | 2016-11-12 | 2017-05-31 | 浙江理工大学 | Steam jet type cooling device and its refrigerating method that heat/work(joint drives |
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