CN2809525Y - Heat pump system with injector and liquid storing and overcooling device - Google Patents
Heat pump system with injector and liquid storing and overcooling device Download PDFInfo
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- CN2809525Y CN2809525Y CN 200520011585 CN200520011585U CN2809525Y CN 2809525 Y CN2809525 Y CN 2809525Y CN 200520011585 CN200520011585 CN 200520011585 CN 200520011585 U CN200520011585 U CN 200520011585U CN 2809525 Y CN2809525 Y CN 2809525Y
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- injector
- outlet
- subcooler
- liquid storage
- compressor
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Abstract
The utility model relates to a heat pump system with an injector and a liquid-storing subcooler, which comprises a sealed main loop which is composed of a compressor, a condenser, a liquid-storing subcooler, an injector, a throttling element, an evaporator, etc. The overall system is composed of the sealed main loop and an auxiliary loop, wherein the injector is connected between an auxiliary outlet of the liquid-storing subcooler in the main loop and an auxiliary air inlet of the compressor in series; an ejecting port of the injector is connected with an outlet of a vapor-liquid separator or an evaporator; the auxiliary loop is composed of the injector, the compressor, the condenser and the liquid-storing subcooler. High-pressure refrigerant vapour on the upper part of the liquid-storing subcooler is used as operating fluid of the injector for ejecting low pressure refrigerant vapour on the outlet of the vapor-liquid separator and the outlet of the evaporator; the energy utilization efficiency of the heat pump system can be improved by the injector and the throttling element; the liquid-storing subcooler plays the role of a liquid reservoir and a subcooler in the existing heat pump system. The utility model has the advantages of high energy utilization efficiency, high feasibility, extensive operating conditions, simple structure, convenient processing, convenient installation, etc.
Description
Technical field
A kind of heat pump with injector and liquid storage subcooler belongs to technical field of heat pumps.
Background technology
With the heating means of electrically driven (operated) heat pump as building, replace traditional fire coal/fuel oil heating, can increase substantially the energy utilization efficiency of winter heating, and can effectively reduce or stop to the airborne release pollutant.Particularly in the key city in the colder area of weather, this effect of using electric heat pump to bring is especially obvious.Make electrically driven (operated) heat pump can be under the cold climate condition stable and high effective operation, just require heat pump when producing big temperature rise, its caloric value decay delivery temperature less, compressor is stable and lower, energy utilization efficiency is higher.Yet traditional single stage compress heat pump can't satisfy above-mentioned requirements.In order to satisfy above-mentioned requirements, Chinese invention patent 01109633.0 a kind of heat pump air conditioner unit that is applicable to cold district is proposed, see accompanying drawing four.
On the basis of traditional single stage compressing hot pump system, the heat pump that patent 01109633.0 proposes adopts the screw compressor (hereinafter to be referred as compressor) 1 of offering auxilairy air intake, and is exported to subsidiary loop in parallel between compressor 1 auxilairy air intake at magnetic valve 6.Flow into major loop and subsidiary loop from the high pressure liquid refrigerant of condenser 2 respectively in magnetic valve 6 exits.The liquid refrigerant that flows into subsidiary loop enters subcooler 13 behind bypass expansion valve 12, the liquid refrigerant that flows into major loop directly enters subcooler 13.The cold-producing medium of subsidiary loop and major loop produces heat exchange in subcooler 13, sucked by the auxilairy air intake of compressor 1 after the refrigerants vaporize in the subsidiary loop, promptly forces tonifying Qi to compressor 1; And the cold-producing medium in the major loop must be cold after, enter evaporimeter 8 through main road expansion valve 14, cold-producing medium becomes low pressure refrigerant vapor after absorbing external heat in evaporimeter 8, is sucked by the air entry of compressor 1; In compressor 1, after the refrigerant mixed compression of air entry, auxiliary air entry suction, become higher pressure refrigerant gas, discharge compressor 1, enter condenser 2; In condenser 2, the higher pressure refrigerant gas release heat is to the refrigerant liquid that becomes high pressure behind the heat-carrying agent, and the circulation of finishing the work.In the technique scheme, can increase the capacity of compressor 1 to compressor 1 tonifying Qi, increase the heat that condenser 2 discharges by bypass; On the other hand, the liquid before the main road expansion valve 14 is crossed the cold heat absorption capacity that can improve evaporimeter 8.Like this, can stop the heat decay of heat pump under big temperature rise operating mode effectively, and can increase work efficiency and enlarge the operating mode scope.
Technique scheme also has tangible weak point, and at first this heat pump does not reclaim the pressure energy of bypass cold-producing medium step-down process, reduces the energy consumption of system; Its subsystem subcooler 13 and liquid reservoir 15 are provided with respectively, have increased the parts and the cost of system, simultaneously the trouble location of system are increased, and have reduced reliability of operation.
The utility model content
The purpose of this utility model is at above-mentioned problems of the prior art, and a kind of heat pump is provided.
A kind of heat pump with injector and liquid storage subcooler of the present utility model is implemented according to Fig. 1-technical scheme shown in Figure 3.This system includes the working cycles loop that compressor 1, condenser 2, device for drying and filtering 5, magnetic valve 6, main restricting element 7 and evaporimeter 8 constitute sealing; It is characterized in that: this system also includes liquid storage subcooler 3 and injector 4; Whole system is made of the major loop and the subsidiary loop of sealing, major loop is to be joined by the refrigerant inlet of the exhaust outlet of compressor 1 and condenser 2, the import of the refrigerant outlet of condenser 2 and liquid storage subcooler 3 is joined, the import of the outlet of liquid storage subcooler 3 and device for drying and filtering 5 is joined, the outlet of device for drying and filtering 5 is joined by the import of magnetic valve 6 and main restricting element 7, the refrigerant inlet of the outlet of main restricting element 7 and evaporimeter 8 is joined, the air inlet of the refrigerant outlet of evaporimeter 8 by vapour liquid separator 9 and compressor 1 formation of joining; Subsidiary loop is by the bypass of liquid storage subcooler 3 outlet 3 ' join with the import of injector 4, the ejecting port 4 of injector 4 ' be connected with the arbitrary interface that is provided with on the pipeline between compressor 1 import that is exported to of evaporimeter 8, the outlet of injector 4 constitutes by the auxilairy air intake 1 ' back that joins of stop valve 10 with compressor 1.
In described a kind of heat pump with injector and liquid storage subcooler, the bypass outlet 3 that described liquid storage subcooler 3 is provided with import, exports and communicates with liquid storage subcooler 3 upper spaces '.
In described a kind of heat pump with injector and liquid storage subcooler, the ejecting port 4 of injector 4 ' be connected with the outlet of vapour liquid separator 9 or evaporimeter 8.
In described a kind of heat pump with injector and liquid storage subcooler, described injector 4 can not be with ejecting port 4 ', in this is provided with, the bypass of liquid storage subcooler 3 outlet and injector 4) import join, the outlet of injector 4 is joined by the auxiliary air entry of stop valve 10 with compressor 1.
In described a kind of heat pump with injector and liquid storage subcooler, the injector 4 available secondary restricting elements 11 in the described subsidiary loop are replaced; In this was provided with, the outlet of the bypass of liquid storage subcooler 3 was joined with the import of assisting restricting element 11, and the outlet of auxilliary restricting element 11 is joined by the auxiliary air entry of stop valve 10 with compressor 1.
A kind of heat pump of the present utility model with injector and liquid storage subcooler, its operation principle and parts effect are as described below: high temperature, higher pressure refrigerant gas that compressor 1 is discharged, through condenser 2 with the heat transferred heat-carrying agent, as thermal liquid or heat-carrying gas, the heat-carrying agent after the intensification can be used for room heating or as the domestic hot-water.The high pressure refrigerant liquid of coming out from condenser 2 enters liquid storage subcooler 3.Because pressure reduces and absorb the heat of surrounding environment, when refrigerant liquid was detained at liquid storage subcooler 3, partially liq was vaporized into the top that saturated high pressure refrigerant vapor union is stored in liquid storage subcooler 3.These high pressure refrigerant vapor enter injector 4 by the bypass outlet of liquid storage subcooler 3; And, come the low pressure refrigerant vapor of injection vapour liquid separator 9 or evaporimeter 8 outlets as the working fluid of injector 4.From liquid storage subcooler 3, enter into the refrigerant vapour of injector 4 and mixed also reduction of speed to the low pressure refrigerant vapor of injector 4 at injector 4 by injection, compacting refrigerant vapour in the exit of injector 4 becomes, sucked by the auxilairy air intake of compressor 1, like this, effectively utilized the pressure energy of the high-pressure refrigerant that liquid storage subcooler 3 comes out, the energy efficiency of heat pump is improved.In liquid storage subcooler 3, owing to making the refrigerant liquid that accumulates in its underpart, the heat around absorbing obtains cooling during the partially liq vaporization, after becoming the subcooled liquid that has than big supercooling degree, enter main restricting element 7 by device for drying and filtering 5 and magnetic valve 6, in main restricting element 7, cross that cold refrigerant liquid pressure reduces and the liquid-vapor mixture that becomes low pressure enters evaporimeter 8, the cold-producing medium liquid-vapor mixture is evaporated to the refrigerant vapour of low pressure behind the heat by absorption cooling medium (as cooling liquid or refrigerating gas) in evaporimeter 8, after removing free drop by vapour liquid separator 9, sucked by the air inlet of compressor 1.In compressor 1, the low pressure refrigerant vapor that sucks from air inlet through preliminary compression after, with the refrigerant mixed that sucks from auxiliary air entry, further boil down to higher pressure refrigerant gas again, and discharge compressor 1, enter condenser 2.Because refrigerant liquid has bigger degree of supercooling when entering main restricting element 7, increased the heat absorption capacity of cold-producing medium in evaporimeter 8, like this, has further improved the energy utilization efficiency of heat pump.In this system, subsidiary loop is the tonifying Qi loop.Liquid storage subcooler 3 has played the effect of liquid reservoir 15 and 13 two parts of subcooler in the heat pump shown in Figure 4, has simplified the structure of heat pump.
A kind of heat pump with injector and liquid storage subcooler of the present utility model has the energy utilization efficiency height, feasibility height, operating condition broadness; Simple in structure, cost is low, processes advantage easy for installation.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described:
Fig. 1: structural representation of the present utility model (can be used as embodiment 1 of the present utility model);
Fig. 2: in the utility model injector 4 not with ejecting port 4 ' structural representation;
Fig. 3: the structural representation that substitutes injector 4 in the utility model with auxilliary restricting element 11;
Fig. 4: a kind of structural representation that is applicable to the heat pump air conditioner unit of cold district in the prior art;
Label in the above-mentioned accompanying drawing is respectively:
1, compressor, the auxilairy air intake of 1 ' compressor, 2, condenser, 3, liquid storage subcooler, the outlet of the bypass of 3 ' liquid storage subcooler, 4, injector, 4 ', ejecting port, 5, device for drying and filtering, 6, magnetic valve, 7, main restricting element, 8, evaporimeter, 9, vapour liquid separator, 10, stop valve, 11, auxilliary restricting element, 12, the bypass expansion valve, 13, subcooler, 14, the main road expansion valve, 15, liquid reservoir.
The specific embodiment:
The utility model is assembled into one parts commercially available and design processing according to structural representation shown in Figure 1, realizes a kind of heat pump with injector and liquid storage subcooler of the present utility model.
The heat pump of the heat pump of embodiment 3 and embodiment 2 is similar, referring to Fig. 3.Different is to substitute injector 4 with auxilliary restricting element 11.Like this, the high pressure refrigerant vapor on liquid storage subcooler 3 tops directly enters auxilliary restricting element 11, after auxilliary restricting element 11 reduces pressure, is sucked by the auxilairy air intake of compressor 1.Like this, the heat pump effective simplification of having got back, structure are compact more, more help processing and install and reduce cost.
In the above-mentioned embodiment, all adopt routine to be threaded between each parts or weld, seal also all adopts conventional sealing ring.
Claims (5)
1. the heat pump with injector and liquid storage subcooler includes the sealing working cycles loop that compressor (1), condenser (2), device for drying and filtering (5), magnetic valve (6), restricting element (7) and evaporimeter (8) constitute; It is characterized in that: this system also includes liquid storage subcooler (3) and injector (4); Whole system is made of the major loop and the subsidiary loop of sealing, major loop is to be joined by the refrigerant inlet of the exhaust outlet of compressor (1) and condenser (2), the import of the refrigerant outlet of condenser (2) and liquid storage subcooler (3) is joined, the import of the outlet of liquid storage subcooler (3) and device for drying and filtering (5) is joined, the outlet of device for drying and filtering (5) is joined by the import of magnetic valve (6) and restricting element (7), the refrigerant inlet of the outlet of restricting element (7) and evaporimeter (8) is joined, the air inlet of the refrigerant outlet of evaporimeter (8) by vapour liquid separator (9) and compressor (1) formation of joining; Subsidiary loop is to be joined with the import of injector (4) by the bypass outlet (3 ') of liquid storage subcooler (3), the ejecting port (4 ') of injector (4) is connected with the arbitrary interface that is provided with on the pipeline between compressor (1) import that is exported to of evaporimeter (8), and the auxilairy air intake (1 ') of the outlet of injector (4) by stop valve (10) and compressor (1) back that joins constitutes.
2. a kind of heat pump with injector and liquid storage subcooler according to claim 1 is characterized in that: the bypass outlet (3 ') that described liquid storage subcooler (3) is provided with import, outlet and communicates with liquid storage subcooler (3) upper space.
3, a kind of heat pump with injector and liquid storage subcooler according to claim 1 and 2 is characterized in that, the ejecting port (4 ') of injector (4) is connected with the outlet of vapour liquid separator (9) or evaporimeter (8).
4, a kind of heat pump according to claim 1 and 2 with injector and liquid storage subcooler, it is characterized in that, injector (4) can be with ejecting port (4 '), in this is provided with, the bypass outlet and the import of injector (4) of liquid storage subcooler (3) are joined, and the outlet of injector (4) is joined by the auxiliary air entry of stop valve (10) with compressor (1).
5, a kind of heat pump with injector and liquid storage subcooler according to claim 1 and 2 is characterized in that, the injector in the subsidiary loop (4) available secondary restricting element (11) is replaced; In this was provided with, the outlet of the bypass of liquid storage subcooler (3) was joined with the import of assisting restricting element (11), and the outlet of auxilliary restricting element (11) is joined by the auxiliary air entry of stop valve (10) with compressor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520011585 CN2809525Y (en) | 2005-04-11 | 2005-04-11 | Heat pump system with injector and liquid storing and overcooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520011585 CN2809525Y (en) | 2005-04-11 | 2005-04-11 | Heat pump system with injector and liquid storing and overcooling device |
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| Publication Number | Publication Date |
|---|---|
| CN2809525Y true CN2809525Y (en) | 2006-08-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520011585 Expired - Fee Related CN2809525Y (en) | 2005-04-11 | 2005-04-11 | Heat pump system with injector and liquid storing and overcooling device |
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| CN (1) | CN2809525Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041608A (en) * | 2012-12-06 | 2013-04-17 | 温州市日中轻工机械有限公司 | Discharge flash cooling device for evaporator and use method of device |
| CN104121719A (en) * | 2013-04-25 | 2014-10-29 | 珠海格力电器股份有限公司 | heat pump or refrigeration system |
| CN106152582A (en) * | 2016-07-11 | 2016-11-23 | 格力电器（芜湖）有限公司 | Air conditioning system |
| CN106703914A (en) * | 2017-01-19 | 2017-05-24 | 无锡雪浪环境科技股份有限公司 | Device for improving Rankine cycle heat efficiency |
| CN110486981A (en) * | 2019-09-19 | 2019-11-22 | 刘国跃 | A kind of refrigerating plant |
| CN114608215A (en) * | 2022-05-14 | 2022-06-10 | 中国能源建设集团山西省电力勘测设计院有限公司 | High-energy-efficiency transcritical carbon dioxide two-stage compression cold-heat combined supply system |
| CN114608216A (en) * | 2022-05-14 | 2022-06-10 | 中国能源建设集团山西省电力勘测设计院有限公司 | Defrosting method of high-energy-efficiency transcritical carbon dioxide double-stage compression cold-hot combined supply system |
-
2005
- 2005-04-11 CN CN 200520011585 patent/CN2809525Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041608A (en) * | 2012-12-06 | 2013-04-17 | 温州市日中轻工机械有限公司 | Discharge flash cooling device for evaporator and use method of device |
| CN103041608B (en) * | 2012-12-06 | 2015-01-07 | 温州市日中轻工机械有限公司 | Discharge flash cooling device for evaporator and use method of device |
| CN104121719A (en) * | 2013-04-25 | 2014-10-29 | 珠海格力电器股份有限公司 | heat pump or refrigeration system |
| CN104121719B (en) * | 2013-04-25 | 2016-08-10 | 珠海格力电器股份有限公司 | Refrigeration system |
| CN106152582A (en) * | 2016-07-11 | 2016-11-23 | 格力电器（芜湖）有限公司 | Air conditioning system |
| CN106703914A (en) * | 2017-01-19 | 2017-05-24 | 无锡雪浪环境科技股份有限公司 | Device for improving Rankine cycle heat efficiency |
| CN110486981A (en) * | 2019-09-19 | 2019-11-22 | 刘国跃 | A kind of refrigerating plant |
| CN114608215A (en) * | 2022-05-14 | 2022-06-10 | 中国能源建设集团山西省电力勘测设计院有限公司 | High-energy-efficiency transcritical carbon dioxide two-stage compression cold-heat combined supply system |
| CN114608216A (en) * | 2022-05-14 | 2022-06-10 | 中国能源建设集团山西省电力勘测设计院有限公司 | Defrosting method of high-energy-efficiency transcritical carbon dioxide double-stage compression cold-hot combined supply system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |