CN201434475Y - Supercooling evaporation compound heat exchanger - Google Patents
Supercooling evaporation compound heat exchanger Download PDFInfo
- Publication number
- CN201434475Y CN201434475Y CN2009203059001U CN200920305900U CN201434475Y CN 201434475 Y CN201434475 Y CN 201434475Y CN 2009203059001 U CN2009203059001 U CN 2009203059001U CN 200920305900 U CN200920305900 U CN 200920305900U CN 201434475 Y CN201434475 Y CN 201434475Y
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- heat exchanger
- refrigerant
- condensed water
- subcooler
- finned tube
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Abstract
The utility model discloses a supercooling evaporation compound heat exchanger, which comprises a fin end plate, a finned tube, a refrigerant inlet pipe, a liquid separating capillary tube, a liquid separating capillary tube valve, a refrigerant outlet pipe, a condensed water receiving tray, a condensed water outlet, a condenser and the like; and one end of a supercooler is connected with a refrigerant inlet, while the other end is connected with the liquid separating capillary tube valve. The supercooling evaporation compound heat exchanger adopting the structure does not increase any cost, reduces the throttling loss of a system, improves the refrigeration amount in unit mass of a refrigerant, makes the power of a compressor reduced and the energy efficiency improved, and cannot influence the heating capacity of a split heat pump air conditioner.
Description
Technical field
The utility model relates to a kind of heat exchanger, the cold evaporation composite heat exchanger of particularly a kind of mistake.
Background technology
As shown in Figure 1, be the basic structure of the indoor heat exchanger of existing split cabinet air conditioner, comprise fin end sheet 1a, 1b, finned tube 2, refrigerant entrance pipe 3, separatory capillary 4a, separatory capillary valve 4b, refrigerant exit pipeline 5, condensed water drip tray 6, condensed water discharge outlet 7 assemblies such as grade, indoor heat exchanger is set directly at condensed water drip tray 6 tops, indoor heat exchanger is to tilt to install, reduce gradually from top to bottom with the distance of header board, this will cause also reducing gradually from top to bottom by the air circulation of centrifugal blower forced convertion, very not smooth at foot especially with finned tube 2 heat exchanger airflow near condensed water drip tray 6, air quantity is relatively very little, is unfavorable for very much the heat exchange of heat exchanger bottom.Indoor heat exchanger is in the air-conditioner process of refrigerastion simultaneously, the condensed water gravitate that heat exchanger surface produces is dirty naturally along finned tube 2, more in heat exchanger lower fins pipe 2 place's condensed water aggegations that condensed water drip tray 6 connects, easily form the water bridge, this will increase the heat exchange resistance also can increase flowing resistance, severe exacerbation the heat exchange efficiency of heat exchanger lower fins pipe 2, make the refrigerant evaporation of heat exchanger bottom incomplete, cause whole heat exchanger refrigerating capacity to reduce, Energy Efficiency Ratio descends.
The utility model content
Technical problem to be solved in the utility model provides the cold evaporation composite heat exchanger of a kind of mistake, when using this to cross cold evaporation composite heat exchanger, can improve the refrigerating capacity of heat exchanger, and improve Energy Efficiency Ratio.
The technical scheme that its technical problem that solves the utility model adopts is: this crosses cold evaporation composite heat exchanger, comprise fin end sheet, finned tube, the refrigerant entrance pipe, the separatory capillary, the separatory capillary valve, the refrigerant exit pipeline, the condensed water drip tray, assemblies such as condensed water discharge outlet, it is characterized in that: the finned tube of the heat exchanger bottom of close condensed water drip tray is as the subcooler of refrigerant, one end of this subcooler is connected with the refrigerant inlet, the other end is connected with the separatory capillary valve, refrigerant is carried out cold effectively excessively by utilizing the cryogenic condensation current that evaporimeter produces in the process of refrigerastion through subcooler.
In process of refrigerastion, the air-conditioner indoor heat exchanger is an evaporimeter, the cryogenic condensation water gravitate that produces in the evaporation process is dirty naturally along finned tube, when the finned tube that uses as subcooler through the heat exchanger bottom, will carry out stronger heat exchange with the liquid refrigerants of the relatively-high temperature that flows through subcooler, further improve the degree of supercooling of refrigerant, the refrigerant of crossing after cold enters each stream evaporation and heat-exchange by indoor separatory capillary again, condensed water after the heat exchange confluxes in the condensed water drip tray, and discharges by the condensed water discharge outlet.
In process of refrigerastion, on the one hand the cryogenic condensation current under the forced-convection heat transfer that does not have circulating current, still can make refrigerant further cold excessively when the very high subcooler of thermal conductivity factor, reduce restriction loss, improve the refrigerating capacity of refrigerant unit mass.
In the process of heating, indoor heat exchanger is a condenser, though there is not the generation of condensed water in the condensation process, can not produce effective cold excessively to refrigerant in the subcooler of bottom, but simultaneously because bottom heat exchange poor effect, can not exert an influence by the heating capacity of heat exchanger when heating, so adopt behind the subcooler and previous status heat exchanger heating capacity basically identical yet.
The beneficial effects of the utility model are, adopt the cold evaporating heat exchanger of mistake of this structure, can not increase any cost, and minimizing system restriction loss, improve the refrigerating capacity of refrigerant unit mass, compressor horsepower is reduced, improved efficiency, and can not exert an influence the heating capacity of heat pump split-type air conditioner.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the schematic diagram of existing heat exchanger.
Fig. 2 is the schematic diagram of the cold evaporation composite heat exchanger of mistake of the present utility model.
Fig. 3 is p-h (pressure-enthalpy) the curve comparison diagram of cold evaporation composite heat exchanger of mistake of the present utility model and former heat exchanger.
Parts, toponym and pairing mark: fin end sheet 1a among the figure, 1b, finned tube 2, refrigerant entrance pipe 3, separatory capillary 4a, separatory capillary valve 4b, refrigerant exit pipeline 5, condensed water drip tray 6, condensed water discharge outlet 7, subcooler 8.
The specific embodiment
As shown in Figure 2, the cold evaporation composite heat exchanger of mistake of the present utility model, comprise fin end sheet 1a, 1b, finned tube 2, refrigerant entrance pipe 3, separatory capillary 4a, separatory capillary valve 4b, refrigerant exit pipeline 5, condensed water drip tray 6, condensed water discharge outlet 7, subcooler 8 assemblies such as grade, described subcooler 8 is meant the finned tube near the heat exchanger bottom of condensed water drip tray, one end of this subcooler is connected with refrigerant inlet 3, the other end is connected with separatory capillary valve 4b, carries out cold effectively excessively by utilizing the cryogenic condensation current that evaporimeter produces in the process of refrigerastion through 8 pairs of refrigerants of subcooler; Described fin end sheet 1a, 1b plays fixation.
In process of refrigerastion, indoor heat exchanger is an evaporimeter, the cryogenic condensation water gravitate that evaporation process produces is dirty naturally along finned tube 2, when the finned tube that uses as subcooler 8 by the bottom, can carry out stronger heat exchange with the liquid refrigerants of the relatively-high temperature that flows through subcooler 8, the refrigerant of crossing after cold enters each stream finned tube 2 evaporation and heat-exchange by separatory capillary 4a again, and the condensed water after the heat exchange confluxes in the condensed water drip tray 6, and discharges by condensed water discharge outlet 7.Refrigerant process heat exchange is after 5 outflows of refrigerant exit pipeline.
As shown in Figure 3, refrigerant is flowed through behind the subcooler 8, obtain further cold excessively, circulation becomes 12344 ' 5 ' 51 by original 123451, and as seen, subcooler makes the specific refrigerating effect of refrigerant increase Δ h, therefore under identical refrigerating capacity, required cold medium flux reduces relatively, and compressor horsepower reduces, and refrigeration efficiency is improved; Though the effective subcooler 8 of doing of evaporimeter lower fins on the other hand, cause the evaporimeter heat exchange area to reduce, but because itself heat exchange efficiency is extremely low, almost not influence of exchange capability of heat to whole evaporimeter, simultaneously because evaporimeter lower fins pipe is made subcooler 8, itself does not produce condensed water, can reduce the formation of water bridge to a certain extent, thereby reduces wind resistance and improve exchange capability of heat.
The above is some principles of the cold evaporation composite heat exchanger of mistake of the present utility model, be not be this practicality to be confined to shown in and in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (3)
1. cold evaporation composite heat exchanger of mistake, comprise fin end sheet, finned tube, refrigerant entrance pipe, separatory capillary, separatory capillary valve, refrigerant exit pipeline, condensed water drip tray, condensed water discharge outlet, it is characterized in that: the finned tube of the heat exchanger bottom of close condensed water drip tray is as the subcooler of refrigerant, one end of this subcooler is connected with the refrigerant inlet, and the other end is connected with the separatory capillary valve.
2. the cold evaporation composite heat exchanger of mistake according to claim 1 is characterized in that: described subcooler is " U " type shape.
3. according to the cold evaporation composite heat exchanger of claim 1 described mistake, it is characterized in that: described subcooler is " U " type finned tube of heat exchanger foot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203059001U CN201434475Y (en) | 2009-07-09 | 2009-07-09 | Supercooling evaporation compound heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203059001U CN201434475Y (en) | 2009-07-09 | 2009-07-09 | Supercooling evaporation compound heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434475Y true CN201434475Y (en) | 2010-03-31 |
Family
ID=42053283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203059001U Expired - Lifetime CN201434475Y (en) | 2009-07-09 | 2009-07-09 | Supercooling evaporation compound heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201434475Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046604A (en) * | 2021-11-18 | 2022-02-15 | 深圳职业技术学院 | Two-stage supercooling directly-heated multifunctional heat pump water heater |
-
2009
- 2009-07-09 CN CN2009203059001U patent/CN201434475Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046604A (en) * | 2021-11-18 | 2022-02-15 | 深圳职业技术学院 | Two-stage supercooling directly-heated multifunctional heat pump water heater |
| CN114046604B (en) * | 2021-11-18 | 2024-01-12 | 深圳职业技术学院 | Two-stage supercooling direct heating type multifunctional heat pump water heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100331 |
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| CX01 | Expiry of patent term |