CN114427757A - Vapor compression absorption combined cycle system - Google Patents
Vapor compression absorption combined cycle system Download PDFInfo
- Publication number
- CN114427757A CN114427757A CN202210023954.9A CN202210023954A CN114427757A CN 114427757 A CN114427757 A CN 114427757A CN 202210023954 A CN202210023954 A CN 202210023954A CN 114427757 A CN114427757 A CN 114427757A
- Authority
- CN
- China
- Prior art keywords
- generator
- heat exchanger
- evaporator
- lithium bromide
- absorber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
- F25B25/02—Compression-sorption machines, plants, or systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention discloses a vapor compression absorption type combined cycle system, which comprises an evaporator, an absorber, a generator and a compressor, wherein a first heat exchanger is arranged in the generator, a vapor discharge end of the generator is communicated with an inlet end of the compressor, an outlet end of the compressor is communicated with one end of the first heat exchanger, and the other end of the first heat exchanger is communicated with the evaporator; gaseous steam discharged from the generator enters the compressor, is compressed and then enters the first heat exchanger, and is condensed to form liquid and enters the evaporator for heat exchange; the absorber is filled with a lithium bromide concentrated solution, the lithium bromide concentrated solution absorbs water vapor evaporated from the evaporator to form a lithium bromide dilute solution, the lithium bromide dilute solution enters the generator to exchange heat with steam in the first heat exchanger, and the lithium bromide dilute solution is concentrated into a lithium bromide concentrated solution and returns to the absorber. The compression type refrigeration and the compression type heat pump are realized under the condition that refrigeration working media such as Freon are not needed, and the reverse Carnot cycle is replaced to generate the refrigeration and heat pump effects; the system operation maintenance cost is reduced and the system operation is stable.
Description
Technical Field
The invention relates to a vapor compression absorption combined cycle system.
Background
The waste heat resources in China are quite rich, a large amount of low-temperature circulating cooling water can be generated in the industrial production process, and a low-temperature waste heat source cannot be utilized due to low temperature, so that not only is huge energy waste caused, but also the thermal pollution to the environment is caused. The absorption heat pump can convert low-grade waste heat into high-grade heat energy, and plays an important role in energy conservation, consumption reduction and carbon emission reduction.
The traditional compression type refrigeration and heat pump uses refrigeration working medium such as Freon to carry out reverse Carnot circulation, so as to generate refrigeration or heating effect.
Disclosure of Invention
In view of the above problems, it is an object of the present invention to provide a vapor compression absorption combined cycle system that is less expensive to operate and maintain.
The technical scheme for realizing the invention is as follows
The vapor compression absorption type combined cycle system comprises an evaporator, an absorber, a generator and a compressor, wherein a first heat exchanger is arranged in the generator, a vapor discharge end of the generator is communicated with an inlet end of the compressor, an outlet end of the compressor is communicated with one end of the first heat exchanger, and the other end of the first heat exchanger is communicated with the evaporator; gaseous steam discharged from the generator enters the compressor, is compressed and then enters the first heat exchanger, and is condensed to form liquid and enters the evaporator for heat exchange;
the absorber is filled with a lithium bromide concentrated solution, the lithium bromide concentrated solution absorbs water vapor evaporated from the evaporator to form a lithium bromide dilute solution, the lithium bromide dilute solution enters the generator to exchange heat with steam in the first heat exchanger, and the lithium bromide dilute solution is concentrated into a lithium bromide concentrated solution and returns to the absorber.
Furthermore, a second heat exchanger is arranged in the evaporator, one end of the second heat exchanger in the evaporator is connected with a low-temperature heat source to enter, and the other end of the second heat exchanger in the evaporator is used for discharging cold water;
the first heat exchanger in the generator is communicated with the bottom in the evaporator through a first pipeline, a first sprayer is arranged at the top in the evaporator, the bottom in the evaporator is communicated with the first sprayer through a second pipeline, a refrigerant pump is installed on the second pipeline, liquid water in the evaporator is conveyed to the first sprayer through the refrigerant pump, and the liquid water is sprayed onto the second heat exchanger from top to bottom through the first sprayer.
Furthermore, a third heat exchanger is arranged in the absorber, one end of the third heat exchanger in the absorber is a low-temperature water inlet end, and the other end of the third heat exchanger in the absorber is a high-temperature water outlet end;
the top is provided with the second spray thrower in the absorber, forms the intercommunication through the third pipeline between bottom and the second spray thrower in the generator, and the lithium bromide concentrated solution in the generator gets into the second spray thrower through the third pipeline, sprays in the absorber, carries out the heat exchange with the low temperature water in the third heat exchanger.
Furthermore, a third sprayer is arranged at the top in the generator, the bottom in the absorber is communicated with the third sprayer through a fourth pipeline, a solution pump is installed on the fourth pipeline, the lithium bromide dilute solution at the bottom in the absorber is conveyed to the third sprayer through the solution pump, the third sprayer sprays the solution into the generator, and the water vapor in the first heat exchanger is condensed into liquid water.
Furthermore, an electric heater for heating the lithium bromide concentrated solution in the generator is arranged at the bottom in the generator.
By adopting the technical scheme, the novel vapor compression absorption combined cycle system realizes compression type refrigeration and compression type heat pumps without refrigeration working media such as Freon, replaces reverse Carnot cycle and generates refrigeration and heat pump effects; the system operation and maintenance cost is reduced, and the system operation is stable.
Drawings
FIG. 1 is a schematic view of the present invention;
in the drawing, 100 is an evaporator, 101 is an absorber, 102 is a generator, 103 is a compressor, 104 is a first heat exchanger, 105 is a second heat exchanger, 106 is a first pipe, 107 is a first shower, 108 is a second pipe, 109 is a refrigerant pump, 110 is a third heat exchanger, 111 is a second shower, 112 is a third shower, 113 is a fourth pipe, 114 is a solution pump, 115 is an electric heater, and 116 is a baffle plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.
Referring to fig. 1, a vapor compression absorption combined cycle system includes an evaporator 100, an absorber 101, a generator 102, and a compressor 103, wherein a first heat exchanger 104 is disposed in the generator 102, a vapor discharge end of the generator 102 is communicated with an inlet end of the compressor 103 through a pipeline, an outlet end of the compressor 103 is communicated with one end of the first heat exchanger 104 through a pipeline, and the other end of the first heat exchanger 104 is communicated with the evaporator 100; gaseous steam discharged from the generator 102 enters the compressor 103, is compressed by the compressor 103, enters the first heat exchanger 104 of the generator 102 as a high-temperature heat source, exchanges heat with the lithium bromide dilute solution conveyed by the absorber 101, is condensed into a liquid state, and enters the evaporator 100 for heat exchange. The strong lithium bromide solution is contained at the bottom of the absorber 101, absorbs the water vapor evaporated from the evaporator 100 to form a weak lithium bromide solution, enters the generator 102 to exchange heat with the steam in the first heat exchanger 104, and is concentrated into the strong lithium bromide solution to return to the absorber 101.
In the present application, the second heat exchanger 105 is disposed in the evaporator 100, one end of the second heat exchanger 105 in the evaporator 100 is connected to the low-temperature heat source to enter, and the other end is used for discharging cold water, so as to reduce the temperature of the cold water in the second heat exchanger 105 and generate a refrigeration effect. The first heat exchanger 104 in the generator 102 is communicated with the bottom in the evaporator 100 through a first pipe 106, and water in the first heat exchanger 104 can enter the bottom in the evaporator 100 through the first pipe 106; a first sprayer 107 is arranged at the top in the evaporator 100 to spray the introduced water; the bottom in the evaporator 100 is communicated with the first sprayer 107 through a second pipeline 108, a refrigerant pump 109 is installed on the second pipeline 108, the refrigerant pump 109 conveys liquid water in the evaporator 100 to the first sprayer 107, the liquid water is sprayed into the evaporator 100 from top to bottom through the first sprayer 107, and the heat exchange is carried out between the liquid water and cold water in the second heat exchanger 105.
In the present application, a third heat exchanger 110 is disposed in the absorber 101, one end of the third heat exchanger in the absorber 101 is a low-temperature water inlet end, and the other end is a high-temperature water outlet end; the low temperature water entering from the low temperature water inlet end passes through the third heat exchanger 110 to form high temperature water, and the high temperature water is discharged from the high temperature water outlet end, so that the heating effect is generated. The second sprayer 111 is arranged at the top in the absorber 101, the bottom in the generator 102 is communicated with the second sprayer 111 through a third pipeline 112, and the lithium bromide concentrated solution in the generator 102 enters the second sprayer through the third pipeline and is sprayed in the absorber 101 to exchange heat with the low-temperature water in the third heat exchanger, so that the temperature of the low-temperature water is increased. A baffle 116 is arranged between the absorber 101 and the evaporator 100, so that water vapor in the evaporator 100 enters the absorber 101 and is absorbed by the lithium bromide solution at the bottom.
In the application, the top is provided with third spray thrower 112 in generator 102, forms the intercommunication through fourth pipeline 113 between bottom and the third spray thrower 112 in the absorber, installs solution pump 114 on fourth pipeline 113, carries the third spray thrower with the lithium bromide weak solution of bottom in the absorber through solution pump 114, sprays in the generator by third spray thrower 112, with the vapor condensation in the first heat exchanger 104 for liquid water.
In this application, the bottom in the generator is provided with an electric heater 115 that heats the lithium bromide concentrated solution in the generator. The first heat exchanger 104, the second heat exchanger 105, and the third heat exchanger employ heat exchange coils.
The working process of the application is as follows: vapor evaporated from the lithium bromide solution in the generator is compressed by the compressor and then enters the coil pipe in the generator as a high-temperature heat source, condensed liquid water enters the evaporator 100, and is circulated and sprayed by the refrigerant pump to absorb heat for evaporation, and the evaporated vapor enters the absorber to be absorbed by the lithium bromide solution and emit heat. And the lithium bromide dilute solution absorbing the water vapor enters the generator through a solution pump, and is concentrated into a concentrated solution to return to the absorber.
The application has the advantages over the prior art:
1. steam is used as a refrigerant working medium to replace the traditional organic refrigeration working medium such as Freon and the like, so that the operation and maintenance cost is reduced.
2. A condenser is omitted in the lithium bromide absorption heat pump, a compressor is added, the lithium bromide solution is evaporated to steam, the steam is compressed by the compressor and then enters a coil pipe in a generator to serve as a high-temperature heat source, and after condensation, liquid water enters an evaporator to absorb heat and evaporate to enter an absorber to be absorbed by the lithium bromide solution to release heat.
3. An electric heater is added in the generator and used as a starting heat source, so that the system runs stably.
Claims (5)
1. A vapor compression absorption combined cycle system comprises an evaporator, an absorber, a generator and a compressor, wherein a first heat exchanger is arranged in the generator,
the steam discharge end of the generator is communicated with the inlet end of the compressor, the outlet end of the compressor is communicated with one end of the first heat exchanger, and the other end of the first heat exchanger is communicated with the evaporator; gaseous steam discharged from the generator enters the compressor, is compressed and then enters the first heat exchanger, and is condensed to form liquid and enters the evaporator for heat exchange;
the absorber is filled with a lithium bromide concentrated solution, the lithium bromide concentrated solution absorbs water vapor evaporated from the evaporator to form a lithium bromide dilute solution, the lithium bromide dilute solution enters the generator to exchange heat with steam in the first heat exchanger, and the lithium bromide dilute solution is concentrated into a lithium bromide concentrated solution and returns to the absorber.
2. The vapor compression absorption combined cycle system of claim 1 wherein a second heat exchanger is disposed within the evaporator, the second heat exchanger being fed by a low temperature heat source at one end and cold water at the other end.
A first heat exchanger in the generator is communicated with the bottom in the evaporator through a first pipeline, a first sprayer is arranged at the top in the evaporator, the bottom in the evaporator is communicated with the first sprayer through a second pipeline, a refrigerant pump is installed on the second pipeline, liquid water in the evaporator is conveyed to the first sprayer through the refrigerant pump, and the liquid water is sprayed into the evaporator from top to bottom through the first sprayer.
3. The vapor compression absorption combined cycle system of claim 1, wherein a third heat exchanger is disposed in the absorber, one end of the third heat exchanger in the absorber being a low temperature water inlet end and the other end being a high temperature water outlet end;
the top is provided with the second spray thrower in the absorber, forms the intercommunication through the third pipeline between bottom and the second spray thrower in the generator, and the lithium bromide concentrated solution in the generator gets into the second spray thrower through the third pipeline, sprays in the absorber, carries out the heat exchange with the low temperature water in the third heat exchanger.
4. The vapor compression absorption combined cycle system as set forth in claim 1, wherein a third spray thrower is provided at an inner top portion of the generator, the inner bottom portion of the absorber is communicated with the third spray thrower through a fourth pipe, a solution pump is installed on the fourth pipe, the dilute lithium bromide solution at the inner bottom portion of the absorber is delivered to the third spray thrower through the solution pump, and the third spray thrower sprays the dilute lithium bromide solution into the generator to condense the water vapor in the first heat exchanger into liquid water.
5. The vapor compression absorption combined cycle system of claim 1 wherein the bottom of the generator is provided with an electric heater for heating the concentrated lithium bromide solution in the generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210023954.9A CN114427757A (en) | 2022-01-11 | 2022-01-11 | Vapor compression absorption combined cycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210023954.9A CN114427757A (en) | 2022-01-11 | 2022-01-11 | Vapor compression absorption combined cycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114427757A true CN114427757A (en) | 2022-05-03 |
Family
ID=81311679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210023954.9A Pending CN114427757A (en) | 2022-01-11 | 2022-01-11 | Vapor compression absorption combined cycle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114427757A (en) |
-
2022
- 2022-01-11 CN CN202210023954.9A patent/CN114427757A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103411347B (en) | Coupling type heat pump waste heat recovery system | |
| US20180172320A1 (en) | Multi-stage plate-type evaporation absorption cooling device and method | |
| CN103322724B (en) | Heat pump circulating system and drying system and method | |
| CN202521938U (en) | Heat pump system and drying system | |
| CN103090593B (en) | Heat pump circulating system and heat pump cycle method and vapo(u)rization system | |
| CN101135511A (en) | Compression-absorption mixed refrigerating device | |
| CN2913969Y (en) | Compression type and absorption type associated refrigerating plant | |
| CN103322725A (en) | Heat pump system, drying system, and respective method | |
| US9239177B2 (en) | Hybrid absorption-compression chiller | |
| CN201100780Y (en) | Compression-absorption mixed refrigerator | |
| CN102080898A (en) | Lithium bromide absorbing evaporative condensing water chilling unit | |
| CN201949793U (en) | Absorption-type freeze drying machine driven by waste heat of air compressor | |
| CN102052801B (en) | Refrigeration and heat pump device driven by using high-temperature flue gas | |
| CN114322354A (en) | Absorption type circulating refrigeration system and process thereof | |
| CN102809144A (en) | Device and method for using two-stage jet absorption heat pump to improve thermal cycle efficiency | |
| CN100570241C (en) | The double-effect lithium bromide absorption type refrigerating plant that fume afterheat utilizes | |
| CN201973952U (en) | Lithium bromide absorption evaporative condensation water chiller | |
| US20120324925A1 (en) | Triple-effect vapor absorption refrigeration system | |
| CN217154591U (en) | Vapor compression absorption combined cycle system | |
| CN217178934U (en) | Efficient lithium bromide compression absorption type combined circulation system | |
| CN105066502A (en) | Direct burning absorption refrigeration method and device for recovering phase change heat | |
| CN114427757A (en) | Vapor compression absorption combined cycle system | |
| CN201706769U (en) | Lithium bromide central air conditioner for fully recycling vaporization heat | |
| CN202521939U (en) | Heat pump system and drying system | |
| CN112815576A (en) | Comprehensive energy-saving system for solar energy utilization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220516 Address after: 213000 No. 5, Qinling Road, Xinbei District, Changzhou City, Jiangsu Province Applicant after: JIANGSU HEHAI NEW ENERGY Co.,Ltd. Address before: 213000 No. 5, Qinling Road, Xinbei District, Changzhou City, Jiangsu Province Applicant before: Yang Jiahua |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220623 Address after: 213022 No.5 Qinling Road, Xinbei District, Changzhou City, Jiangsu Province Applicant after: Jiangsu Hehai New Energy Technology Development Co.,Ltd. Address before: 213000 No. 5, Qinling Road, Xinbei District, Changzhou City, Jiangsu Province Applicant before: JIANGSU HEHAI NEW ENERGY Co.,Ltd. |