CN2511918Y - Low temperature moisture eliminator with four way valve to defrost by switching - Google Patents
Low temperature moisture eliminator with four way valve to defrost by switching Download PDFInfo
- Publication number
- CN2511918Y CN2511918Y CN 01272445 CN01272445U CN2511918Y CN 2511918 Y CN2511918 Y CN 2511918Y CN 01272445 CN01272445 CN 01272445 CN 01272445 U CN01272445 U CN 01272445U CN 2511918 Y CN2511918 Y CN 2511918Y
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- Prior art keywords
- cross valve
- low temperature
- way valve
- condenser
- defrosting
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Abstract
The utility model discloses a low temperature moisture eliminator with four way valve to defrost by switching and comprises a cold compressor, a condenser, a throttling gear and an evaporator; the utility model is characterized by comprising a four way valve; the cold compressor passes through the four way valve, the condenser, the throttling gear, the evaporator and the four way valve in turn and then returns to the cold compressor to form a cooling circuit; the cold compressor passes through the four way valve, the evaporator, the throttling gear, the condenser and the four way valve in turn and then returns to the cold compressor to form a switch defrosting circuit. As the utility model adopts the four way valve and the corresponding optimal configuration of refrigeration system, the moisture eliminator can be used in a low-temperature environment and is reliable and stable in performance.
Description
One, technical field
The utility model relates to a kind of dehumidifier, particularly a kind of low temperature dehumidification machine with cross valve commutation defrosting.
Two, background technology
The main application of dehumidifier is the water capacity that is used for reducing pending air.When humid air process evaporimeter, because cold-producing medium makes the evaporator surface temperature be lower than the air dew point temperature, the moisture content of air is just separated out in the evaporator surface dewfall, thereby reaches the dehumidifying purpose.But the operating ambient temperature of dehumidifier mostly is 18 ℃～32 ℃ at present, and when environment temperature was lower than 18 ℃, unit then can't move because of evaporimeter frosting, so some traditional defrosting methods occurred, commonly used has following three kinds:
1, shuts down defrosting.Promptly stop the refrigeration system operation, keep fan operation, lean on air the evaporimeter defrosting.Like this defrosting time long, the refrigeration system start-stop is frequent, and the water droplet that is melted into of frost brought into the interior space again, influences effect on moisture extraction.
2, electrical heating defrosting.By stopping the refrigeration system operation, carry out defrosting for the electric heating tube energising heating in the evaporimeter.Like this, refrigeration system still start-stop is frequent, and the evaporation structure complexity, cost height, the extra simultaneously power consumption that increases.
3, hot gas bypass defrosting.Promptly high-temperature high-pressure refrigerant is directly introduced evaporimeter and carry out defrosting, but through a large amount of practices, magnetic valve performance is extremely unstable by magnetic valve, needle damages easily, and the control system complexity, cold-producing medium does not pass through complete kind of refrigeration cycle simultaneously, causes the refrigeration system operation unreliable.
Three, summary of the invention
1, goal of the invention: the purpose of this utility model provides a kind of multiway valve that utilizes cooling cycle system is automaticallyed switch to realize the low temperature dehumidification machine of defrosting purpose.
2, technical scheme: for achieving the above object, the low temperature dehumidification machine with cross valve commutation defrosting described in the utility model comprises refrigeration compressor, condenser, throttling arrangement and evaporimeter, it is characterized in that it also comprises cross valve; Refrigeration compressor returns refrigeration compressor successively and constitutes refrigerating circuit behind cross valve, condenser, throttling arrangement, evaporimeter, cross valve; Refrigeration compressor returns refrigeration compressor successively and constitutes commutation defrosting loop behind cross valve, evaporimeter, throttling arrangement, condenser, cross valve.On the loop between cross valve and the refrigeration compressor, can be provided with vapour liquid separator.On the loop between condenser and the throttling arrangement, can be parallel with defrosting check valve and refrigeration check valve.On the loop of refrigeration check valve, can be in series with device for drying and filtering.Throttling arrangement is capillary or expansion valve.Air through after the evaporator cools dehumidifying, is sent into the destination earlier again during work after condenser heats up.When the frosting of unit evaporator surface is arrived to a certain degree, the cross valve action, unit automatically switches to commutation defrosting circulation, and automatically restores to the refrigerated dehumidification circulation.
Endless form switching of the present utility model adopts microcomputer program to control automatically.When unit moves in low temperature environment, the easy frosting of evaporator surface, when the temperature of the sensor impression that is embedded in evaporator surface is lower than design temperature (defrosting point), the cross valve action, unit is automatically converted to commutation defrosting circulation; When the temperature of sensor impression is higher than the temperature (refrigeration point) of setting, the cross valve action, unit returns to the refrigerated dehumidification circulation again.
3, beneficial effect: the utility model has overcome the deficiency of traditional defrosting method.Because adopted the corresponding of cross valve and refrigeration system to distribute rationally, thereby this unit can be used in low temperature environment, and dependable performance is stable, defrosting effect is good, system is simple.
Four, description of drawings
Fig. 1 is a theory structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the specific embodiment.
Wherein: 1, refrigeration compressor; 2, condenser; 3, throttling arrangement; 4, evaporimeter; 5, cross valve; 6, vapour liquid separator; 7, defrosting check valve; 8, refrigeration check valve; 9, device for drying and filtering.Solid arrow direction indication refrigerated dehumidification circulation time refrigerant flow direction among the figure; Dotted arrow direction indication commutation defrosting circulation time refrigerant flow direction.
Five, the specific embodiment
Example 1:
With CFQ6.3B type low temperature dehumidification machine is example, and it mainly seals refrigeration compressor 1 entirely by " Chunlan " (Q3.2S type); Heat exchange area is 25.5m
2Air-cooled condenser 2; Capillary 3; Heat exchange area is 16.4m
2Evaporimeter 4; Cross valve 5; Vapour liquid separator 6, defrosting check valve 7, refrigeration check valve 8 and device for drying and filtering 9 are formed.They connect as shown in Figure 2, and have microcomputer program to control automatically.This low temperature dehumidification machine name moisture removal is 6.3kg/h, and nominal refrigerating capacity is 8.7KW, the environment for use temperature range: 5 ℃～32 ℃, use humidity range: 40%～90%.
Example 2: with CFQ10B type low temperature dehumidification machine is example, and structure is with example 1, but is 30.5m with area respectively with air-cooled condenser 2 and evaporimeter 4
2And 20.2m
2Substitute, capillary 3 changes to 4 (length is constant) by 3, the full envelope of the refrigeration compressor 1 usefulness U.S. " Tai Kang " (TAG5568E type) substitutes, this low temperature dehumidification machine name moisture removal is 10kg/h, the name refrigerating capacity is 17.5KW, environment for use temperature range: 5 ℃～32 ℃, use humidity range: 40%～90%.
Claims (5)
1, a kind of low temperature dehumidification machine with cross valve commutation defrosting comprises refrigeration compressor (1), condenser (2), throttling arrangement (3) and evaporimeter (4), it is characterized in that it also comprises cross valve (5); Refrigeration compressor returns refrigeration compressor (1) successively and constitutes refrigerating circuit behind cross valve (5), condenser (2), throttling arrangement (3), evaporimeter (4), cross valve (5); Refrigeration compressor (1) returns refrigeration compressor (1) successively and constitutes commutation defrosting loop behind cross valve (5), evaporimeter (4), throttling arrangement (3), condenser (2), cross valve (5).
2, the low temperature dehumidification machine with cross valve commutation defrosting according to claim 1 is characterized in that being provided with vapour liquid separator (6) on the loop between cross valve (5) and the refrigeration compressor (1).
3, the low temperature dehumidification machine with cross valve commutation defrosting according to claim 1 and 2 is characterized in that being parallel with defrosting check valve (7) and refrigeration check valve (8) on the loop between condenser (2) and the throttling arrangement (3).
4, the low temperature dehumidification machine with cross valve commutation defrosting according to claim 1 is characterized in that being in series with device for drying and filtering (9) on the loop of refrigeration check valve (8).
5, the low temperature dehumidification machine with cross valve commutation defrosting according to claim 1 is characterized in that described throttling arrangement (3) is capillary or expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01272445 CN2511918Y (en) | 2001-11-26 | 2001-11-26 | Low temperature moisture eliminator with four way valve to defrost by switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01272445 CN2511918Y (en) | 2001-11-26 | 2001-11-26 | Low temperature moisture eliminator with four way valve to defrost by switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2511918Y true CN2511918Y (en) | 2002-09-18 |
Family
ID=33677604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01272445 Expired - Fee Related CN2511918Y (en) | 2001-11-26 | 2001-11-26 | Low temperature moisture eliminator with four way valve to defrost by switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2511918Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245008A (en) * | 2012-02-07 | 2013-08-14 | Lg电子株式会社 | Air conditioner for electric vehicle |
| CN104006451A (en) * | 2014-05-30 | 2014-08-27 | 广东美的集团芜湖制冷设备有限公司 | Freezing type dehumidifier |
| CN104235388A (en) * | 2014-09-30 | 2014-12-24 | 贾培育 | Large-capacity defrosting valve |
| CN104807264A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Heat pump unit frosting inhibition method and heat pump unit |
| CN105365525A (en) * | 2015-09-24 | 2016-03-02 | 珠海格力电器股份有限公司 | Refrigerator car and refrigerating system thereof |
| CN106091179A (en) * | 2016-06-20 | 2016-11-09 | 珠海格力电器股份有限公司 | Method for continuously dehumidifying and defrosting and dehumidifier |
| CN106482286A (en) * | 2015-08-28 | 2017-03-08 | 青岛海尔空调器有限总公司 | For controlling method and the apparatus of air conditioning of the apparatus of air conditioning |
| CN108131357A (en) * | 2017-11-28 | 2018-06-08 | 江苏金荣森制冷科技有限公司 | The tubing type industrial constant-temperature machine of hydraulic pressure bypass with adjustable relief valve |
-
2001
- 2001-11-26 CN CN 01272445 patent/CN2511918Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245008A (en) * | 2012-02-07 | 2013-08-14 | Lg电子株式会社 | Air conditioner for electric vehicle |
| CN103245008B (en) * | 2012-02-07 | 2016-03-02 | Lg电子株式会社 | For the air-conditioning of electric motor car |
| CN104807264A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Heat pump unit frosting inhibition method and heat pump unit |
| CN104807264B (en) * | 2014-01-23 | 2017-05-24 | 珠海格力电器股份有限公司 | Heat pump unit frosting inhibition method and heat pump unit |
| CN104006451A (en) * | 2014-05-30 | 2014-08-27 | 广东美的集团芜湖制冷设备有限公司 | Freezing type dehumidifier |
| CN104235388A (en) * | 2014-09-30 | 2014-12-24 | 贾培育 | Large-capacity defrosting valve |
| CN104235388B (en) * | 2014-09-30 | 2016-05-25 | 贾培育 | A kind of large capacity defrosting valve |
| CN106482286A (en) * | 2015-08-28 | 2017-03-08 | 青岛海尔空调器有限总公司 | For controlling method and the apparatus of air conditioning of the apparatus of air conditioning |
| CN105365525A (en) * | 2015-09-24 | 2016-03-02 | 珠海格力电器股份有限公司 | Refrigerator car and refrigerating system thereof |
| CN106091179A (en) * | 2016-06-20 | 2016-11-09 | 珠海格力电器股份有限公司 | Method for continuously dehumidifying and defrosting and dehumidifier |
| CN106091179B (en) * | 2016-06-20 | 2018-11-13 | 珠海格力电器股份有限公司 | Method for continuously dehumidifying and defrosting and dehumidifier |
| CN108131357A (en) * | 2017-11-28 | 2018-06-08 | 江苏金荣森制冷科技有限公司 | The tubing type industrial constant-temperature machine of hydraulic pressure bypass with adjustable relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |