CN103123183A - Composite heat pump of cryogen steam of outlet of injecting evaporator - Google Patents
Composite heat pump of cryogen steam of outlet of injecting evaporator Download PDFInfo
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- CN103123183A CN103123183A CN2013101037117A CN201310103711A CN103123183A CN 103123183 A CN103123183 A CN 103123183A CN 2013101037117 A CN2013101037117 A CN 2013101037117A CN 201310103711 A CN201310103711 A CN 201310103711A CN 103123183 A CN103123183 A CN 103123183A
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Abstract
A composite heat pump of cryogen steam of an outlet of an injecting evaporator is formed by a generator, a condenser, a first throttle valve, an evaporator, an absorber, a first solution pump, a solution heat exchanger, an ejector and a second throttle valve. Driving steam entering through the work steam inlet of the ejector injects low pressure cryogen steam entering the ejector from the evaporator to form the steam with intermediate pressure and temperature, the steam with the intermediate pressure and temperature enters the generator to be used as driving thermal medium to heat the solution in the generator, cryogen liquid is obtained after the solution condenses, a part of the cryogen liquid is supplied to the condenser through the second throttle valve, and the other part of the cryogen liquid is discharged in the form of condensed water. The composite heat pump of the cryogen steam of the outlet of the injecting evaporator gives full play to the value of high-quality driving steam with a simple structure, has a high performance index, can use waste with low temperature, fully recovers the defect of an absorption heat pump and a steam jet heat pump, and expands the application range of heat pump technology in an energy-saving field.
Description
Technical field
The invention belongs to the Low-temperature heat utilization techniques field.
Background technology
Absorption heat pump is take heat energy as power, adopt contrary Carnot cycle realize heat by low temperature to the high temperature transmission, be particularly suitable for the occasion of a large amount of used heat, the condensed state of used heat can be that gaseous state can be also liquid.For the absorption heat pump right take lithium bromide water solution as working medium, physical property due to working medium itself, make temperature and the concentration of solution self 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 is also 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 with the integrated steam using of different brackets pressure, reach significant energy-saving effect.But can only recovered steam due to the heat pump of the type, for the liquid used heat of low temperature, as the heat that contains in low-temperature water heating, can't directly reclaim, greatly limited its application.
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, the first solution pump, solution heat exchanger, injector and the second choke valve form, wherein, generator, condenser, the first throttle valve, evaporimeter, absorber, the first solution pump, solution heat exchanger consists of classical first kind single-stage single-effective absorption heat pump, flash-pot also has the refrigerant vapour passage to communicate with injector injection entrance, after the injector outlet also has the refrigerant vapour passage to be communicated with generator, generator has the cryogen liquid pipeline to be communicated with condenser through the second choke valve, generator also has the cryogen liquid pipeline to be communicated with outside, injector working steam entrance and driving 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.
In figure, 1-generator, 2-condenser, 3-first throttle valve, 4-evaporimeter, 5-absorber, the 6-the first solution pump, 7-solution heat exchanger, 8-injector, the 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 structure, by generator 1, condenser 2, first throttle valve 3, evaporimeter 4, absorber 5, the first solution pump 6, solution heat exchanger 7, injector 8 and the second choke valve 9 form, wherein, generator 1, condenser 2, first throttle valve 3, evaporimeter 4, absorber 5, the first solution pump 6, solution heat exchanger 7 consists of 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, after injector 8 outlets also have the refrigerant vapour passage to be communicated with generator 1, generator 1 has the cryogen liquid pipeline to be communicated with condenser 2 through the second choke valve 9, generator 1 also has the cryogen liquid pipeline to be communicated with outside, injector 8 working steam entrances and driving vapor communication, form a kind of combined heat-pump of injection evaporator outlet refrigerant vapour.
On technique, 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 the rear driving thermal medium as generator 1 of generator 1, solution in heating generator 1, obtain cryogen liquid after condensation, a cryogen liquid part provides through the second choke valve 9 backward condensers of throttling, 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, the performance index COP of double effect absorption type heat pump is the highest in 2.1 left and right, and adopt technique provided by the invention, according to injector mass ratio of induced-to-inducing air 0.7, single-effective absorption circulation COP is 1.7, 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 evaporimeter is enhanced and is used as the driving thermic load of generator, increase so on the one hand the thermic load of evaporimeter, reduced on the other hand the thermic load that drives steam, improved heat 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 make up 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, the first solution pump, solution heat exchanger, injector and the second choke valve form, wherein, generator, condenser, the first throttle valve, evaporimeter, absorber, the first solution pump, solution heat exchanger consists of classical first kind single-stage single-effective absorption heat pump, flash-pot also has the refrigerant vapour passage to communicate with injector injection entrance, after the injector outlet also has the refrigerant vapour passage to be communicated with generator, generator has the cryogen liquid pipeline to be communicated with condenser through the second choke valve, generator also has the cryogen liquid pipeline to be communicated with outside, injector working steam entrance and driving 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 |
|---|---|---|---|
| CN2013101037117A CN103123183A (en) | 2013-03-28 | 2013-03-28 | Composite heat pump of cryogen steam of outlet of injecting evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101037117A CN103123183A (en) | 2013-03-28 | 2013-03-28 | Composite heat pump of cryogen steam of outlet of injecting evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103123183A true CN103123183A (en) | 2013-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101037117A Pending CN103123183A (en) | 2013-03-28 | 2013-03-28 | Composite heat pump of cryogen steam of outlet of injecting evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103123183A (en) |
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2013
- 2013-03-28 CN CN2013101037117A patent/CN103123183A/en active Pending
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130529 |