CN203216147U - Composite heat pump for ejecting refrigerant steam at outlet of evaporator - Google Patents
Composite heat pump for ejecting refrigerant steam at outlet of evaporator Download PDFInfo
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- CN203216147U CN203216147U CN2013201472250U CN201320147225U CN203216147U CN 203216147 U CN203216147 U CN 203216147U CN 2013201472250 U CN2013201472250 U CN 2013201472250U CN 201320147225 U CN201320147225 U CN 201320147225U CN 203216147 U CN203216147 U CN 203216147U
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Abstract
The utility model relates to a composite heat pump for ejecting refrigerant steam at an outlet of an evaporator. The composite heat pump is composed of a generator, a condenser, a first throttle valve, the evaporator, an absorber, a first solution pump, a solution heat exchanger, an ejector and a second throttle valve, wherein for driving steam entering from a working steam inlet of the ejector, the lower-pressure refrigerant steam entering the ejector from the evaporator is ejected to form an intermediate-pressure and intermediate-temperature steam which serves as a driving heat medium after entering the generator, so that a solution in the generator is heated; and a refrigerant solution is obtained after the solution is condensed, wherein one part of the refrigerant solution is supplied into the condenser after being throttled by the second throttle valve while the other part of the refrigerant solution is discharged as condensed water through a refrigerant solution pipeline. Based on the simple structure, the value of the driving steam with high quality is exerted fully, so that the high performance index is obtained; and the waste heat at the low temperature can be utilized. Thus, the defects of an absorption heat pump and a steam-jet heat pump are overcome fully. As a result, the application range of a heat pump technology in the field of energy conservation is expanded.
Description
Technical field
The invention belongs to low temperature exhaust heat and utilize technical field.
Background technology
Absorption heat pump is power with heat energy, and the contrary Carnot cycle realization of employing heat to the high temperature transmission, is particularly suitable for the occasion of a large amount of used heat by low temperature, and the condensed state of used heat can be that gaseous state also can be liquid.For with the lithium bromide water solution being the right absorption heat pump of working medium, because the rerum natura of working medium itself, make that temperature and the concentration of solution self are all restricted, can and reach best operating efficiency at rational temperature, concentration section operation for making absorption heat pump, people have developed multiple-effect and multistage absorption heat pump, under identical waste heat supply temperature, after absorption type heat pump efficiency number increased, heat supply temperature can descend, after progression increases, operating efficiency can descend, so make both not take into account.
Steam jet heat pump also is the effective technology means of utilizing low-temperature steam exhaust, waste vapour, it is widely used in weaving, papermaking, oil, thermoelectricity etc. is with in the industry of steam as power, it can utilize the available energy of high steam throttling, improve the pressure of low-pressure steam, reclaim the low-pressure steam of emptying or the flash steam of condensed water in high temperature etc. with the high steam energy, thereby the integrated steam using with different brackets pressure reaches obvious energy-saving effect.But because the heat pump of the type can only recovered steam, for the liquid used heat of low temperature, as the heat that contains in the low-temperature water heating, then can't directly reclaim, limit its application greatly.
The combined heat-pump of the advantage gained of two kinds of heat pumps of invention collection will help to solve above-mentioned two kinds of insoluble problems of heat pump.
Summary of the invention
The invention provides a kind of combined heat-pump of injection evaporator outlet refrigerant vapour.
A kind of combined heat-pump of injection evaporator outlet refrigerant vapour, by generator, condenser, the first throttle valve, evaporimeter, absorber, first solution pump, solution heat exchanger, injector and second choke valve are formed, wherein, generator, condenser, the first throttle valve, evaporimeter, absorber, first solution pump, solution heat exchanger constitutes classical first kind single-stage single-effective absorption heat pump, flash-pot also has the refrigerant vapour passage to communicate with injector injection entrance, the injector outlet also has the refrigerant vapour passage to be communicated with the back generator with generator has the cryogen liquid pipeline to be communicated with condenser through second choke valve, generator also has cryogen liquid pipeline and external communications, injector working steam entrance with drive vapor communication, form a kind of combined heat-pump of injection evaporator outlet refrigerant vapour.
Description of drawings
Accompanying drawing is depicted as the combined heat-pump of a kind of injection evaporator outlet refrigerant vapour provided by the invention.
Among the figure, 1-generator, 2-condenser, 3-first throttle valve, 4-evaporimeter, 5-absorber, 6-the first solution pump, 7-solution heat exchanger, 8-injector, 9-the second choke valve.
The specific embodiment
A kind of combined heat-pump of injection evaporator outlet refrigerant vapour is achieved in that
On the structure, by generator 1, condenser 2, first throttle valve 3, evaporimeter 4, absorber 5, first solution pump 6, solution heat exchanger 7, injector 8 and second choke valve 9 are formed, wherein, generator 1, condenser 2, first throttle valve 3, evaporimeter 4, absorber 5, first solution pump 6, solution heat exchanger 7 constitutes classical first kind single-stage single-effective absorption heat pump, flash-pot 4 also has the refrigerant vapour passage to communicate with injector 8 injection entrances, injector 8 outlets also have the refrigerant vapour passage to be communicated with back generator 1 with generator 1 has the cryogen liquid pipeline to be communicated with condenser 2 through second choke valve 9, generator 1 also has cryogen liquid pipeline and external communications, injector 8 working steam entrances with drive vapor communication, form a kind of combined heat-pump of injection evaporator outlet refrigerant vapour.
On the technology, enter the driving steam of injector 8 from injector 8 working steam entrances, the low pressure refrigerant vapour that the injection flash-pot enters injector 8 through injector 8 injection entrances becomes the steam of intermediate pressure and temperature, enter generator 1 back as the driving thermal medium of generator 1, add the solution in the heater 1, obtain cryogen liquid after the condensation, a cryogen liquid part provides to condenser after 9 throttlings of second choke valve, another part is discharged with the form of condensate water through the cryogen liquid pipeline, forms a kind of combined heat-pump of injection evaporator outlet refrigerant vapour.
The effect that the technology of the present invention can realize---The combined heat-pump of a kind of injection evaporator outlet refrigerant vapour proposed by the invention has following effect and advantage:
1. realize the efficient utilization to high-quality driving steam, it is very high being used for its grade of driving steam of the low-pressure steam in the injection evaporimeter, if allow it drive double effect absorption type heat pump, then the performance index COP of double effect absorption type heat pump is the highest about 2.1, and adopt technology provided by the invention, according to injector mass ratio of induced-to-inducing air 0.7, single-effective absorption circulation COP is 1.7, then comprehensive COP is 2.89, far above double effect absorption type heat pump;
2. can reclaim the heat of low temperature liquid thermal source, solve the problem that steam jet heat pump can not directly not utilize the low temperature liquid thermal source.Cryogen liquid in evaporimeter obtains refrigerant vapour thereby the low temperature liquid heat source stream is through evaporimeter and heat release, and refrigerant vapour is to be utilized by steam jet heat pump;
3. under the effect that drives steam, its temperature of a part of thermic load in the evaporimeter is enhanced and is used as the driving thermic load of generator, increase the thermic load of evaporimeter so on the one hand, reduced the thermic load that drives steam on the other hand, improved the heat energy utilization rate from two aspects;
4. combined heat-pump is simple in structure, when heating demand changes, only need change the flow that drives steam and get final product, and is easy to adjust.
In sum, the present invention gives full play to the value of high-quality driving steam with simple structure, has very high performance index, can utilize the waste heat of lower temperature.Fully remedy the deficiency of absorption heat pump and steam jet heat pump, expanded the range of application of heat pump techniques in energy-saving field, had practicality, creativeness and novelty.
Claims (1)
1. the combined heat-pump of an injection evaporator outlet refrigerant vapour, by generator, condenser, the first throttle valve, evaporimeter, absorber, first solution pump, solution heat exchanger, injector and second choke valve are formed, wherein, generator, condenser, the first throttle valve, evaporimeter, absorber, first solution pump, solution heat exchanger constitutes classical first kind single-stage single-effective absorption heat pump, flash-pot also has the refrigerant vapour passage to communicate with injector injection entrance, the injector outlet also has the refrigerant vapour passage to be communicated with the back generator with generator has the cryogen liquid pipeline to be communicated with condenser through second choke valve, generator also has cryogen liquid pipeline and external communications, injector working steam entrance with drive vapor communication, form a kind of combined heat-pump of injection evaporator outlet refrigerant vapour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201472250U CN203216147U (en) | 2013-03-28 | 2013-03-28 | Composite heat pump for ejecting refrigerant steam at outlet of evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201472250U CN203216147U (en) | 2013-03-28 | 2013-03-28 | Composite heat pump for ejecting refrigerant steam at outlet of evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203216147U true CN203216147U (en) | 2013-09-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201472250U Expired - Fee Related CN203216147U (en) | 2013-03-28 | 2013-03-28 | Composite heat pump for ejecting refrigerant steam at outlet of evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203216147U (en) |
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2013
- 2013-03-28 CN CN2013201472250U patent/CN203216147U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140328 |