CN103398495A - Composite heat pump for injecting generator outlet refrigerant steam - Google Patents
Composite heat pump for injecting generator outlet refrigerant steam Download PDFInfo
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- CN103398495A CN103398495A CN2013102942224A CN201310294222A CN103398495A CN 103398495 A CN103398495 A CN 103398495A CN 2013102942224 A CN2013102942224 A CN 2013102942224A CN 201310294222 A CN201310294222 A CN 201310294222A CN 103398495 A CN103398495 A CN 103398495A
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Abstract
Disclosed is a composite heat pump for injecting generator outlet refrigerant steam. The composite heat pump is composed of a high temperature generator, a condenser, a first throttle valve, an evaporator, an absorber, a solution pump, a first solution heat exchanger, a second solution heat exchanger, a low temperature generator, an injector and a second throttle valve. High-quality driving steam is used for injecting the low-pressure refrigerant steam which enters the injector from the low temperature generator to form medium-pressure and medium-temperature steam, and after entering the high temperature generator, the medium-pressure and medium-temperature steam is used as a driving heat medium. Therefore, the value of the high-quality driving steam and the value of low-temperature driving heat are fully utilized, the defects of an absorbing-type heat pump and a steam-injecting-type heat pump are fully made up, and the application range of the heat pump technology in the energy-saving field is expanded.
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, for guaranteeing source pump safety, stable operation, temperature and concentration to solution have certain requirement, for making absorption heat pump and reach best operating efficiency at rational temperature, concentration section operation, people have developed multiple-effect and multistage absorption heat pump: under identical waste heat supply temperature, after absorption type heat pump efficiency number increases, operating efficiency can improve, but can improve the requirement that drives heat, the upper limit of heat supply temperature can descend; After progression increases, can reduce the requirement that drives heat, the heat supply temperature upper limit can improve, but operating efficiency can descend, the economy variation, so both advantages can not be taken into account.
The operation principle of steam jet heat pump is take the energy difference before and after steam pressure-reducing as power, when passing through nozzle, high steam produces high velocity air, produce low-pressure area at nozzle exit, in this zone with the low-pressure steam inhalation device, high steam is compression and low pressure steam when expanding, improve the grade of low-pressure steam with the abundant pressure of high steam, then well mix by mixing chamber, mixed steam is again by the diffusion chamber recovered part pressure loss, meets the requirements of after steam pressure to supply with hot user and use.Can carry out different structural designs to equipment according to the parameter of high and low pressure steam, obtain the steam of various pressure ratings, meet different hot users' requirement.The low-pressure steam that sucks by steam jet heat pump can be both the exhaust steam of emptying, it can be also the flash steam that condensed water in high temperature produces, because the heat pump of the type can only recovered steam, liquid used heat for low temperature, as the heat that contains in low-temperature water heating, can't directly reclaim, greatly limit its application.
The combined heat-pump of two kinds of heat pump advantages 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 generator exports refrigerant vapour.
a kind of combined heat-pump of injection generator exports refrigerant vapour, by high-temperature generator, condenser, the first throttle valve, evaporimeter, absorber, solution pump, the first solution heat exchanger, the second solution heat exchanger, cryogenerator, injector and the second choke valve form, wherein, cryogenerator has the concentrated solution pipeline to be communicated with absorber through the first solution heat exchanger, absorber has the weak solution pipeline through solution pump, be communicated with high-temperature generator after the first solution heat exchanger and the second solution heat exchanger, high-temperature generator has the solution pipeline to be communicated with cryogenerator through the second solution heat exchanger, cryogenerator also has the refrigerant vapour passage to be communicated with injector injection entrance, after the injector outlet also has the refrigerant vapour passage to be communicated with high-temperature generator, high-temperature generator also has the cryogen liquid pipeline to be communicated with condenser through the second choke valve, high-temperature generator also has the cryogen liquid pipeline directly with outside, to be communicated with, high-temperature generator also has the refrigerant vapour passage to be communicated with condenser, condenser has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve, evaporimeter has the refrigerant vapour passage to be communicated with absorber, the evaporimeter medium pipeline that also has surplus heat is communicated with outside, condenser and absorber also have respectively the heated medium pipeline to be communicated with outside, cryogenerator drives in addition the thermal medium pipeline and is communicated with outside, injector working steam entrance drives in addition steam pipework and is communicated with outside, form a kind of combined heat-pump of injection generator exports refrigerant vapour.
Description of drawings
Accompanying drawing is depicted as the combined heat-pump of a kind of injection generator exports refrigerant vapour provided by the invention.
In figure, 1-high-temperature generator, 2-condenser, 3-first throttle valve, 4-evaporimeter, 5-absorber, 6-solution pump, the 7-the first solution heat exchanger, the 8-the second solution heat exchanger, 9-cryogenerator, 10-injector, the 11-the second choke valve.
The specific embodiment
A kind of combined heat-pump of injection generator exports refrigerant vapour is achieved in that
on structure, by high-temperature generator 1, condenser 2, first throttle valve 3, evaporimeter 4, absorber 5, solution pump 6, the first solution heat exchanger 7, the second solution heat exchanger 8, cryogenerator 9, injector 10 and the second choke valve 11 form, wherein, cryogenerator 9 has the concentrated solution pipeline to be communicated with absorber 5 through the first solution heat exchanger 7, absorber 5 has the weak solution pipeline through solution pump 6, be communicated with high-temperature generator 1 after the first solution heat exchanger 7 and the second solution heat exchanger 8, high-temperature generator 1 has the solution pipeline to be communicated with cryogenerator 9 through the second solution heat exchanger 8, cryogenerator 9 also has the refrigerant vapour passage to be communicated with injector 10 injection entrances, after injector 10 outlets also have the refrigerant vapour passage to be communicated with high-temperature generator 1, high-temperature generator 1 also has the cryogen liquid pipeline to be communicated with condenser 2 through the second choke valve 11, high-temperature generator 1 also has the cryogen liquid pipeline directly with outside, to be communicated with, high-temperature generator 1 also has the refrigerant vapour passage to be communicated with condenser 2, condenser 2 also has the cryogen liquid pipeline to be communicated with evaporimeter 4 through first throttle valve 3, evaporimeter 4 also has the refrigerant vapour passage to be communicated with absorber 5, evaporimeter 4 medium pipeline that also has surplus heat is communicated with outside, condenser 2 and absorber 5 also have respectively the heated medium pipeline to be communicated with outside, cryogenerator 9 drives in addition the thermal medium pipeline and is communicated with outside, injector 10 working steam entrances drive in addition steam pipework and are communicated with outside, form a kind of combined heat-pump of injection generator exports refrigerant vapour.
on technique, drive heat medium flow through cryogenerator 9, the solution that heating enters in it discharges and to injector 10 injection entrances, provides refrigerant vapour, concentrated solution in cryogenerator 9 enters absorber 5 through the first solution heat exchanger 7, absorb refrigerant vapour and heat release in heated medium, weak solution in absorber 5 is through solution pump 6, enter high-temperature generator 1 after the first solution heat exchanger 7 and the second solution heat exchanger 8, driving steam enters injector 10 injections from injector 10 working steam entrances and becomes the refrigerant vapour of intermediate pressure and temperature from the refrigerant vapour of cryogenerator, this part refrigerant vapour is as the driving thermal medium of high-temperature generator 1, the solution that heating enters in high-temperature generator 1 discharges and to condenser 2, provides refrigerant vapour, solution in high-temperature generator enters cryogenerator 9 after the second solution heat exchanger 8, drive as high-temperature generator 1 the cryogen liquid that obtains after the refrigerant vapour heat release condensation of thermal medium, a part provides through the second choke valve 11 backward condensers of throttling, another part with the form of condensate water discharged to the external world, refrigerant medium heat release in condenser 2 becomes cryogen liquid in heated medium, enter evaporimeter 4 after 3 throttlings of first throttle valve, the waste heat MEDIA FLOW is through evaporimeter 4, the cryogen liquid that heating enters in it becomes refrigerant vapour and to absorber 5, provides, form a kind of combined heat-pump of injection generator exports refrigerant vapour.
The effect that the technology of the present invention can realize---The combined heat-pump of a kind of injection generator exports refrigerant vapour proposed by the invention has following effect and advantage:
1. realize low temperature is driven the utilization of thermal medium.The refrigerant vapour of cryogenerator outlet is utilized once again after injection, therefore its temperature and pressure is lower, and traditional absorption technique is to utilize the driving heat of low temperature so under identical condensation temperature, traditional steam jet heat pump also can not directly utilize for the low temperature exhaust heat that exists with liquid form, and visible new invention efficiently solves their limitation;
2. realize the efficient utilization to high-quality driving steam.The way of employing injection exports refrigerant vapour with cryogenerator and improves and be used as the driving thermal medium of high-temperature generator, makes low temperature drive heat and also can play a role, and this has demonstrated fully the value of high-quality driving steam.
In sum, the present invention, with simple structure, gives full play to high-quality driving steam and low temperature and drives the value of heat, has very high energy-saving benefit, fully make up absorption heat pump and steam jet heat pump deficiency separately, expanded the range of application of heat pump techniques in energy-saving field.
Claims (1)
1. the combined heat-pump of an injection generator exports refrigerant vapour, by high-temperature generator, condenser, the first throttle valve, evaporimeter, absorber, solution pump, the first solution heat exchanger, the second solution heat exchanger, cryogenerator, injector and the second choke valve form, wherein, cryogenerator has the concentrated solution pipeline to be communicated with absorber through the first solution heat exchanger, absorber has the weak solution pipeline through solution pump, be communicated with high-temperature generator after the first solution heat exchanger and the second solution heat exchanger, high-temperature generator has the solution pipeline to be communicated with cryogenerator through the second solution heat exchanger, cryogenerator also has the refrigerant vapour passage to be communicated with injector injection entrance, after the injector outlet also has the refrigerant vapour passage to be communicated with high-temperature generator, high-temperature generator also has the cryogen liquid pipeline to be communicated with condenser through the second choke valve, high-temperature generator also has the cryogen liquid pipeline directly with outside, to be communicated with, high-temperature generator also has the refrigerant vapour passage to be communicated with condenser, condenser has the cryogen liquid pipeline to be communicated with evaporimeter through the first throttle valve, evaporimeter has the refrigerant vapour passage to be communicated with absorber, the evaporimeter medium pipeline that also has surplus heat is communicated with outside, condenser and absorber also have respectively the heated medium pipeline to be communicated with outside, cryogenerator drives in addition the thermal medium pipeline and is communicated with outside, injector working steam entrance drives in addition steam pipework and is communicated with outside, form a kind of combined heat-pump of injection generator exports refrigerant vapour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102942224A CN103398495A (en) | 2013-07-15 | 2013-07-15 | Composite heat pump for injecting generator outlet refrigerant steam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102942224A CN103398495A (en) | 2013-07-15 | 2013-07-15 | Composite heat pump for injecting generator outlet refrigerant steam |
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| CN103398495A true CN103398495A (en) | 2013-11-20 |
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| CN2013102942224A Pending CN103398495A (en) | 2013-07-15 | 2013-07-15 | Composite heat pump for injecting generator outlet refrigerant steam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839502A (en) * | 2017-03-30 | 2017-06-13 | 李澎 | Second-kind absorption-type heat pump based on injector |
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2013
- 2013-07-15 CN CN2013102942224A patent/CN103398495A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106839502A (en) * | 2017-03-30 | 2017-06-13 | 李澎 | Second-kind absorption-type heat pump based on injector |
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Application publication date: 20131120 |