CN102494445A - Start method for quickly discharging pressure of compressor of refrigeration system - Google Patents
Start method for quickly discharging pressure of compressor of refrigeration system Download PDFInfo
- Publication number
- CN102494445A CN102494445A CN2011104103018A CN201110410301A CN102494445A CN 102494445 A CN102494445 A CN 102494445A CN 2011104103018 A CN2011104103018 A CN 2011104103018A CN 201110410301 A CN201110410301 A CN 201110410301A CN 102494445 A CN102494445 A CN 102494445A
- Authority
- CN
- China
- Prior art keywords
- compressor
- expansion valve
- refrigeration system
- control device
- aperture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005057 refrigeration Methods 0.000 title claims abstract description 23
- 238000007599 discharging Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000012423 maintenance Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
Images
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The invention provides a start method for quickly discharging pressure of a compressor of a refrigeration system. The start method comprises the following step of: opening an expansion valve to a preset opening for preset time when the compressor is stopped and/or started. The expansion valve is opened to the preset opening for the preset time when the compressor is stopped and/or started, so a high pressure area and a low pressure area at both sides of the expansion valve are quickly communicated, the pressure difference between the high pressure area and the low pressure area of the refrigeration system is quickly reduced, and even the pressure is balanced; and the compressor can be normally started when restarted after waiting for a short time, so that the compressor is quickly started. The method has the advantages of simpleness, easy use and low cost, is particularly suitable for application occasions such as a heat pump water heater and the like in which the compressor is needed to be frequently started.
Description
Technical field:
The present invention relates to a kind of fast pressure relief startup method of refrigeration system compressor, belong to refrigeration technology field.
Background technology:
Compression-type refrigerating system generally includes compressor, condenser, capillary or parts such as expansion valve and evaporimeter; Its weak point is that after compressor shutdown the pressure that needs to wait for higher-pressure region and low-pressure area reaches after the natural equilibrium, i.e. could restart compressor once more after the release; For example in the control system of family expenses air-conditioner; Usually set compressor shutdown and can restart compressor afterwards in 3 minutes, still, under some application scenario; People need restart compressor after compressor shutdown, at this moment exist the compressor band to press the problem that starts difficulty at once.As shown in Figure 1; In order to address the above problem, common way is between the blast pipe at compressor 101 two ends and air intake duct, special release bypass to be set in this area, and magnetic valve 105 is set in the release bypass; When compressor shutdown; This magnetic valve 105 is opened conducting release bypass, makes the exhaust end and the suction end conducting of compressor, realizes the fast pressure relief function.Yet,, will increase the manufacturing and the maintenance cost of refrigerating plant undoubtedly owing to need to increase a special release bypass and adopt the expensive magnetic valve of cost.
Summary of the invention:
The fast pressure relief startup method and the device thereof that the purpose of this invention is to provide a kind of refrigeration system compressor, it need not increase extra accessory on the basis of original refrigeration system, have to be simple and easy to, advantage with low cost.
The technical scheme of the fast pressure relief startup method of refrigeration system compressor of the present invention is following:
Refrigeration system of the present invention comprises compressor, condenser, expansion valve and evaporimeter, and this method comprises the steps:
When said compressor shutdown and/or startup, said expansion valve is opened into predetermined aperture, and lasting preset time.
Because when compressor shutdown and/or startup; Expansion valve is opened into predetermined aperture and continues preset time; The quick conducting of the higher-pressure region of expansion valve both sides and low-pressure area makes between higher-pressure region and the low-pressure area of refrigeration system pressure differential reduce fast and even reaches pressure balance, when compressor starts again, only need wait for the of short duration time; Can normally start, thereby realize the quick startup of compressor.
Description of drawings:
Fig. 1, the refrigeration system of release bypass is set
The refrigeration system of Fig. 2, employing compressor fast pressure relief startup method of the present invention
The heat pump water heater system of Fig. 3, employing compressor fast pressure relief startup method of the present invention
Reference numeral: 10,20: refrigeration system; 101,201,301: compressor; 102,202,302: condenser; 103,203,303: expansion valve; 104,204,304: evaporimeter; 105: magnetic valve; 205,305: control device; 306: water flow switch; 307: boiler
The specific embodiment:
Below in conjunction with concrete embodiment the fast pressure relief startup method of a kind of refrigeration system compressor provided by the present invention is described in further detail, but the present invention is not limited thereto.
Embodiment 1; As shown in Figure 2, refrigerating plant 20 comprises compressor 201, condenser 202, electric expansion valve 203 and evaporimeter 204, and refrigerating plant 20 also comprises control device 205; The output of control device 205 is electrically connected with the input of compressor 201, electric expansion valve 203; Shut down or start-up command the time, control device 203 sends control instruction to electric expansion valve 203 when control device 203 sends to compressor 201, the aperture of electric expansion valve 203 is opened to certain aperture between 50%～100%; And at least 10～20 seconds time of maintenance, be preferably the 10 second time of maintenance under 80% aperture.
Embodiment 2, and is as shown in Figure 2, and Teat pump boiler 30 comprises compressor 301, condenser 302, electric expansion valve 303, evaporimeter 304 and boiler 307; Heat pump water-heating machine 30 also comprises control device 305 and water flow switch 306; Water flow switch 306 is arranged on the output end of hot water of Teat pump boiler 30, and the output of control device 305 is electrically connected with the input of compressor 301, electric expansion valve 303 respectively, and the output of water flow switch 306 is electrically connected with the input of control device 305; Water flow switch 306 and compressor 301 interlocks; When water flow switch 306 1 detected the water outlet current, control device 305 control compressors 301 started operation, when water flow switch 306 1 detects current and stops; Control device 305 control compressors 301 are out of service; Shut down or start-up command the time, control device 303 sends control instruction to electric expansion valve 303 when control device 103 sends to compressor 101, the aperture of electric expansion valve 303 is opened to certain aperture between 50%～100%; And at least 10～20 seconds time of maintenance, be preferably the 10 second time of maintenance under 80% aperture.
The present invention is because when compressor shutdown and/or startup; Expansion valve is opened into predetermined aperture and continues preset time; The quick conducting of the higher-pressure region of expansion valve both sides and low-pressure area makes between higher-pressure region and the low-pressure area of refrigeration system pressure differential reduce fast and even reaches pressure balance, when compressor starts again, only need wait for the of short duration time; Can normally start, thereby realize the quick startup of compressor.Owing to do not need special release bypass; Need not the expensive magnetic valve of extra use; Reduced the production and the maintenance cost of system, had and be simple and easy to, be particularly useful for the application scenario that Teat pump boiler etc. needs the frequent starting compressor with, advantage with low cost.
Claims (10)
1. the fast pressure relief startup method of a refrigeration system compressor, said refrigeration system comprises compressor, condenser, expansion valve and evaporimeter, it is characterized in that, this method comprises the steps:
When said compressor shutdown and/or startup, said expansion valve is opened into predetermined aperture, and said predetermined aperture is kept preset time.
2. the fast pressure relief startup method of refrigeration system compressor as claimed in claim 1 is characterized in that, said predetermined aperture is 50%～100% aperture, and said preset time is 10～20 seconds.
3. the fast pressure relief startup method of refrigeration system compressor as claimed in claim 2 is characterized in that, said predetermined aperture is preferably 80% aperture, and said preset time is preferably 10 seconds.
4. the fast pressure relief startup method of refrigeration system compressor as claimed in claim 1 is characterized in that, said refrigeration system also comprises control device, and the output of said control device is electrically connected with the input of said compressor, said expansion valve respectively.
5. the fast pressure relief startup method of refrigeration system compressor as claimed in claim 4; It is characterized in that; When sending to compressor, said control device shuts down or start-up command the time; Said control device sends control instruction to said expansion valve, and said expansion valve is opened to said predetermined aperture, and said predetermined aperture is kept preset time.
6. the control method of a Teat pump boiler, said Teat pump boiler comprises compressor, condenser, expansion valve and evaporimeter, it is characterized in that, this method comprises the steps:
When said compressor shutdown and/or startup, said expansion valve is opened into predetermined aperture, and said predetermined aperture is kept preset time.
7. the control method of Teat pump boiler as claimed in claim 6 is characterized in that, said predetermined aperture is 50%～100% aperture, and said preset time is 10～20 seconds.
8. the control method of Teat pump boiler as claimed in claim 7 is characterized in that, said predetermined aperture is preferably 80% aperture, and said preset time is preferably 10 seconds.
9. the control method of Teat pump boiler as claimed in claim 6; It is characterized in that; Said Teat pump boiler also comprises control device and water flow switch; Said water flow switch is arranged on the output end of hot water of Teat pump boiler, and the output of said control device is electrically connected with the input of said compressor, said expansion valve respectively, and the output of said water flow switch is electrically connected with the input of control device.
10. the control method of Teat pump boiler as claimed in claim 9 is characterized in that, said water flow switch and the interlock of said compressor, and when said water flow switch detects the water outlet current, the operation of said control device control compressor start.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104103018A CN102494445A (en) | 2011-12-12 | 2011-12-12 | Start method for quickly discharging pressure of compressor of refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104103018A CN102494445A (en) | 2011-12-12 | 2011-12-12 | Start method for quickly discharging pressure of compressor of refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102494445A true CN102494445A (en) | 2012-06-13 |
Family
ID=46186289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104103018A Pending CN102494445A (en) | 2011-12-12 | 2011-12-12 | Start method for quickly discharging pressure of compressor of refrigeration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102494445A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258301A (en) * | 2015-11-17 | 2016-01-20 | 广东美的制冷设备有限公司 | Air-conditioner and control method and device for compressor in air-conditioner |
| CN106288404A (en) * | 2015-05-19 | 2017-01-04 | Tcl空调器(中山)有限公司 | Hot water machine method for heating and controlling and device |
| CN106595155A (en) * | 2016-11-28 | 2017-04-26 | 青岛海尔股份有限公司 | Pressure maintaining system and method of refrigerating system and refrigerating household appliance capable of maintaining pressure |
| CN106958948A (en) * | 2016-01-12 | 2017-07-18 | 青岛海尔新能源电器有限公司 | A kind of heat-pump water heater control method, controller and Teat pump boiler |
| CN107990482A (en) * | 2017-11-28 | 2018-05-04 | 宁波奥克斯电气股份有限公司 | A kind of explosion prevention controlling process and air-conditioning |
| CN109595842A (en) * | 2018-10-17 | 2019-04-09 | 中山市恒乐电器有限公司 | A kind of steam compression system and its starting method |
| CN112665239A (en) * | 2020-12-08 | 2021-04-16 | 珠海格力电器股份有限公司 | Water chilling unit starting method and device and water chilling unit |
| CN113932335A (en) * | 2021-11-01 | 2022-01-14 | 宁波奥克斯电气股份有限公司 | Compressor starting control method and device, air conditioner and computer storage medium |
| US11371763B2 (en) | 2015-08-03 | 2022-06-28 | Carrier Corporation | Thermostatic expansion valves and methods of control |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808023A (en) * | 2005-01-20 | 2006-07-26 | 松下电器产业株式会社 | Refrigeration circulating system and control method thereof |
| CN101338961A (en) * | 2008-08-18 | 2009-01-07 | 南京天加空调设备有限公司 | Automatic oil return control method and device for refrigeration system |
| CN101469915A (en) * | 2007-12-24 | 2009-07-01 | Lg电子株式会社 | Air conditioning system |
-
2011
- 2011-12-12 CN CN2011104103018A patent/CN102494445A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808023A (en) * | 2005-01-20 | 2006-07-26 | 松下电器产业株式会社 | Refrigeration circulating system and control method thereof |
| CN101469915A (en) * | 2007-12-24 | 2009-07-01 | Lg电子株式会社 | Air conditioning system |
| CN101338961A (en) * | 2008-08-18 | 2009-01-07 | 南京天加空调设备有限公司 | Automatic oil return control method and device for refrigeration system |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288404A (en) * | 2015-05-19 | 2017-01-04 | Tcl空调器(中山)有限公司 | Hot water machine method for heating and controlling and device |
| US11874038B2 (en) | 2015-08-03 | 2024-01-16 | Carrier Corporation | Thermostatic expansion valves and methods of control |
| US11371763B2 (en) | 2015-08-03 | 2022-06-28 | Carrier Corporation | Thermostatic expansion valves and methods of control |
| CN105258301A (en) * | 2015-11-17 | 2016-01-20 | 广东美的制冷设备有限公司 | Air-conditioner and control method and device for compressor in air-conditioner |
| CN106958948B (en) * | 2016-01-12 | 2019-10-01 | 青岛海尔新能源电器有限公司 | A kind of heat-pump water heater control method, controller and Teat pump boiler |
| CN106958948A (en) * | 2016-01-12 | 2017-07-18 | 青岛海尔新能源电器有限公司 | A kind of heat-pump water heater control method, controller and Teat pump boiler |
| CN106595155A (en) * | 2016-11-28 | 2017-04-26 | 青岛海尔股份有限公司 | Pressure maintaining system and method of refrigerating system and refrigerating household appliance capable of maintaining pressure |
| CN107990482A (en) * | 2017-11-28 | 2018-05-04 | 宁波奥克斯电气股份有限公司 | A kind of explosion prevention controlling process and air-conditioning |
| CN107990482B (en) * | 2017-11-28 | 2020-07-03 | 宁波奥克斯电气股份有限公司 | Explosion-proof control method and air conditioner |
| CN109595842A (en) * | 2018-10-17 | 2019-04-09 | 中山市恒乐电器有限公司 | A kind of steam compression system and its starting method |
| CN109595842B (en) * | 2018-10-17 | 2021-01-12 | 中山市恒乐电器有限公司 | Vapor compression system and starting method thereof |
| CN112665239A (en) * | 2020-12-08 | 2021-04-16 | 珠海格力电器股份有限公司 | Water chilling unit starting method and device and water chilling unit |
| CN113932335A (en) * | 2021-11-01 | 2022-01-14 | 宁波奥克斯电气股份有限公司 | Compressor starting control method and device, air conditioner and computer storage medium |
| CN113932335B (en) * | 2021-11-01 | 2023-01-24 | 宁波奥克斯电气股份有限公司 | Compressor starting control method and device, air conditioner and computer storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102494445A (en) | Start method for quickly discharging pressure of compressor of refrigeration system | |
| CN101191686B (en) | Air conditioner for implementing high and low pressure side pressure balancing | |
| KR101698261B1 (en) | Air conditioner and control method thereof | |
| CN102353189B (en) | Quick startup control method of air conditioner | |
| CA2890701C (en) | Liquid line charge compensator | |
| CN107356006B (en) | Air conditioning system and air conditioner | |
| CN101619906A (en) | Air-conditioning system and method for restarting air conditioner | |
| CN204730502U (en) | A kind of cryogenic refrigeration machine room air-conditioner | |
| CN201569077U (en) | Heat pump air conditioner | |
| CN105221421A (en) | Compressor and air conditioner | |
| CN107763887B (en) | Energy level control method and control device for dual-system heat pump unit | |
| KR101635701B1 (en) | Air Conditioner and method for controlling the same | |
| US20110289961A1 (en) | Enhanced liquid pressure cycle having an ejector | |
| JP2012127518A (en) | Air conditioner | |
| JP2017150689A (en) | Air conditioner | |
| WO2015192629A1 (en) | Capacity-variable compressor and control method thereof, capacity-variable unit and air conditioner | |
| US11841150B2 (en) | Method for controlling power-on or power-off of air conditioner | |
| JP7448775B2 (en) | Refrigeration cycle equipment | |
| JP7311756B2 (en) | air conditioning system | |
| CN202350399U (en) | Non-delay starting control device of compressor | |
| JP7174936B2 (en) | air conditioner | |
| CN100449214C (en) | Integrated geo-source heat pump air conditioning unit | |
| CN203719269U (en) | Refrigerating unit and heat pump unit | |
| CN110542228A (en) | Air conditioner, control method and device thereof, and computer-readable storage medium | |
| CN106288404B (en) | Hot water machine method for heating and controlling and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: LI HEYI Effective date: 20130712 Owner name: BEIJING QINGLUAN SHENGCHANG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: GONG WENHAO Effective date: 20130712 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100084 HAIDIAN, BEIJING TO: 100029 CHAOYANG, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20130712 Address after: 100029 Beijing city Chaoyang District Shaoyaoju North Austrian international center block B room 2705 Applicant after: Beijing Qingluan Shengchang Technology Co., Ltd. Address before: 100084, No. 563, building 16, Northwest Community, Tsinghua University, Beijing Applicant before: Gong Wenhao Applicant before: Li Heyi |
|
| DD01 | Delivery of document by public notice |
Addressee: Beijing Qingluan Shengchang Technology Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120613 |