CN102032725A - Supercooling device, air conditioner with device and method for controlling refrigerant flow of air conditioner - Google Patents
Supercooling device, air conditioner with device and method for controlling refrigerant flow of air conditioner Download PDFInfo
- Publication number
- CN102032725A CN102032725A CN2010105786370A CN201010578637A CN102032725A CN 102032725 A CN102032725 A CN 102032725A CN 2010105786370 A CN2010105786370 A CN 2010105786370A CN 201010578637 A CN201010578637 A CN 201010578637A CN 102032725 A CN102032725 A CN 102032725A
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- supercooling
- expansion valve
- air
- conditioning
- 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
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a supercooling device, which comprises a shell and tube type condenser comprising a supercooling tube area, an electronic expansion valve and a supercooler, wherein a refrigerant outlet of the shell and tube type condenser is communicated with an inlet of a first refrigerant channel through the electronic expansion valve, and is directly communicated with an inlet of a second refrigerant channel. In addition, the invention also provides an air conditioner comprising any supercooling device. Furthermore, the invention provides a method for controlling refrigerant flow in any air conditioner, which comprises the following steps of: detecting temperature and pressure of a gaseous refrigerant at the outlet of the first refrigerant channel of the supercooler; calculating superheat degree according to the detected temperature and pressure; and comparing the calculated superheat degree with the preset suction superheat degree, and determining whether to adjust the opening of the electronic expansion valve in the supercooling device according to the compared result. The supercooling degree of the refrigerant is improved and the refrigerating capacity of unit refrigerant is improved by means of the supercooling tube area and the supercooler.
Description
Technical field
The method that the present invention relates to a kind of supercooling apparatus, has the air-conditioning of this supercooling apparatus and control cold medium flux in this air-conditioning.
Background technology
Prior art scheme condenser only has condenser pipe and does not have a notion of supercooling tube, the condensation of refrigerant and cross and coldly all finish by condenser pipe, and the bottom condenser pipe is immersed in the liquid refrigerants, can't carry out condensing heat-exchange, cause condensation effect to descend, cause the power of the assembling unit to rise, efficiency descends.The top condenser pipe plays the super cooling effect copper pipe to the bottom and impacts and caused cold effect to descend, and degree of supercooling is generally at the 1-2 degree.Consider the resistance loss of pipeline influence, cause expansion valve forward part liquid shwoot, cause refrigerating capacity to descend and the increase of coolant injection amount.A large amount of condenser pipes can not effectively reduce condensation temperature and improve degree of supercooling, causes the lot of materials waste.
The centrifugal unit of tradition is because a variety of causes (no secondary interface, absorbing gas belt liquid etc.), can not adopt multistage supercooling apparatus, the basic condenser that adopts is crossed cold mode, can only adopt condenser a large amount of condenser pipes of arranging to carry out cold to refrigerant, fill the part refrigerant for improving effect, it is limited that it crosses cold effect, can only be at the 1-2 degree more.For example, publication number is 2654403 Chinese utility application, a kind of condenser technology of car air-conditioner is disclosed, comprise cooling fin, drier, reservoir, expansion valve that the plurality of U-shaped pipe is formed, above-mentioned cooling fin is divided into three groups, and every group is connected in series mutually, and first group of cooling fin outlet joined with the import of reservoir, second group of cooling fin of serial connection between reservoir outlet and drier import, the 3rd group of cooling fin of serial connection between dryer export and expansion valve.Refrigerant earlier successively by first group of cooling fin, reservoir, second group of cooling fin, drier, the 3rd group of cooling fin, enters expansion valve again, realizes that condensation combines with the cold secondary of mistake, and it is cold excessively that the condensator outlet refrigerant is carried out secondary, the condenser of equal volume.
Along with the progress in epoch and the development of society, energy supply growing tension; The mankind are fully recognized that the importance of environmental protection and energy saving.In the epoch of advocating the low-carbon (LC) life, utilize the magnetic suspension central air-conditioning of every new technology to arise at the historic moment.Because of the performance brilliance, energy-efficient, environment friendly and pollution-freely dominate the market rapidly.Adopting repeatedly supercooling apparatus in conjunction with magnetic suspension central air-conditioning technical characterstic is to improve the effective method of unit refrigerant refrigerating capacity, under energy supply growing tension background, the technical advantage of utilizing repeatedly supercooling apparatus to improve refrigerant degree of supercooling higher refrigerating capacity of acquisition and efficiency will obtain extensive use.
Summary of the invention
At the problem that exists in the correlation technique, the method that the object of the present invention is to provide a kind of supercooling apparatus, has the air-conditioning of this supercooling apparatus and control cold medium flux in this air-conditioning to improve the degree of supercooling of refrigerant, increases unit refrigerant refrigerating capacity.
For achieving the above object, on the one hand,, comprising according to the invention provides a kind of supercooling apparatus: shell and tube condenser, have the condensation area under control and the supercooling tube district that are separated into by dividing plate, dividing plate is located at the refrigerant inlet of shell and tube condenser and the position between the refrigerant exit; And electric expansion valve, has the subcooler of first refrigerant passage and second refrigerant passage, wherein, the refrigerant exit of shell and tube condenser is communicated with via the inlet of electric expansion valve with first refrigerant passage, and directly is communicated with the inlet of second refrigerant passage via the refrigerant pipe.
Preferably, in shell and tube condenser, condensation area under control, dividing plate, supercooling tube district set gradually along the direction of the refrigerant exit that enters the mouth from refrigerant.
On the other hand, the present invention also provides a kind of air-conditioning, has aforementioned any supercooling apparatus.
Preferably, air-conditioning also has evaporimeter, compressor, compressor is the magnetic suspension centrifugal compressor with air entry, secondary air entry, exhaust outlet, wherein, the refrigerant of shell and tube condenser inlet is communicated with the exhaust outlet of compressor in the supercooling apparatus, the outlet of first refrigerant passage of subcooler is communicated with the secondary air entry of compressor in the supercooling apparatus, and the outlet of second refrigerant passage of subcooler is communicated with the air entry of compressor via another electric expansion valve, evaporimeter successively in the supercooling apparatus.
Preferably, the outlet of first refrigerant passage of subcooler and the secondary air entry of compressor by the first refrigerant pipeline connection, wherein, on the first refrigerant pipeline, are in series with the temperature sensor that detects refrigerant temperature, the pressure sensor that detects refrigerant pressure successively.
Preferably, air-conditioning is the centrifugal central air-conditioning of magnetic suspension.
Another aspect, the present invention also provides the method for cold medium flux in aforementioned any air-conditioning of a kind of the present invention of control, comprises the steps: the temperature and pressure of the gaseous coolant in the first refrigerant passage exit of subcooler is detected; Calculate the degree of superheat according to detected temperature and pressure value; And the degree of superheat and the default suction superheat that calculates compared, and determine whether to regulate the aperture of electric expansion valve in the supercooling apparatus according to comparative result.
Preferably, before the temperature and pressure that detects gaseous coolant, the operation of air conditioner scheduled time, wherein, at whole predetermined time period, the aperture of electric expansion valve remains unchanged in the supercooling apparatus.
Preferably, when the degree of superheat that calculates is not equal to default suction superheat, the aperture of regulating the electric expansion valve in the supercooling apparatus; When the degree of superheat that calculates equals to preset suction superheat, keep the aperture of electric expansion valve in the supercooling apparatus constant.
Than prior art, beneficial effect of the present invention is: because supercooling apparatus of the present invention has the supercooling tube district that is located in the shell and tube condenser, and the subcooler that is communicated with the supercooling tube district, adopt supercooling apparatus of the present invention, it is for the first time cold excessively to make that refrigerant produces in the supercooling tube district, when flowing through subcooler, produce for the second time cold excessively, therefore, the present invention can improve the degree of supercooling of refrigerant, increase unit refrigerant refrigerating capacity, reduce the coolant injection amount, heat exchanger copper pipe use amount improves the unit efficiency and reaches energy-conservation purpose; Further, supercooling apparatus of the present invention is applied in can give full play to the air-breathing Interface design advantage of magnetic suspension centrifugal compressor secondary in the centrifugal central air-conditioning of magnetic suspension, adopt electric expansion valve to cooperate suction superheat control to guarantee that secondary is air-breathing and have enough degrees of superheat, under different operating modes, can both prevent absorbing gas belt liquid, preferably, than prior art, the present invention can obtain 10 spend cold, improve refrigerating capacity more than 5%, efficiency improves more than 4%.
Description of drawings
Fig. 1 is the structural representation that supercooling apparatus of the present invention is used for air-conditioning;
Fig. 2 is the flow chart of the method for cold medium flux in the control air-conditioning of the present invention;
Fig. 3 is the schematic diagram that is provided with the condenser in supercooling tube district among the present invention.
The specific embodiment
Below referring to accompanying drawing the specific embodiment of the present invention is described.
Referring to Fig. 1, supercooling apparatus of the present invention is described, supercooling apparatus of the present invention comprises: shell and tube condenser 1, electric expansion valve 5, subcooler 3, wherein, shell and tube condenser 1 is divided into condensation area under control and supercooling tube district by dividing plate (crossing cold baffle) 7, subcooler 3 has independently first coolant path and second cold matchmaker's path, and inlet 37, the inlet 31 of outlet 33, the second coolant paths, the outlet 35 of first coolant path have been shown among Fig. 1; 13 fens two branch roads of the refrigerant exit of shell and tube condenser 1 are communicated with subcooler 3, and particularly, refrigerant exit 13 is communicated with the inlet 37 of first coolant path via electric expansion valve 5, directly are communicated with the inlet 31 of the second refrigerant pipeline via the refrigerant pipeline simultaneously.Because the step-down throttling of electric expansion valve 5, the refrigerant temperature in first coolant path is lower than the refrigerant temperature in second coolant path, thereby between the refrigerant in two refrigerant passages heat exchange can take place.
Continuation is referring to Fig. 1, the flow path of refrigerant in supercooling apparatus is: refrigerant is from the refrigerant of the shell and tube condenser 1 inlet 11 refrigerant area under control of flowing through successively, dividing plate 7, the supercooling tube district, when flowing through the supercooling tube district, take place for the first time cold excessively, refrigerant flows out through the refrigerant exit 13 of shell and tube condenser 1 then, be further divided into two refrigerant branch roads and flow into subcooler 3, wherein a refrigerant branch road is via electric expansion valve 5 back first coolant paths that flow into subcoolers 3, another refrigerant branch road flows directly into second coolant path of subcooler 3, as previously mentioned, because the step-down throttling action of electric expansion valve 5, in first coolant path in the refrigerant and second coolant path refrigerant heat exchange can take place, thereby when flowing through subcooler 3, realized cold excessively from the refrigerant of shell and tube condenser 1.That is, supercooling apparatus of the present invention, make refrigerant take place twice cold excessively, the cold excessively supercooling tube district that occurs in, cold excessively occurring in when flowing through subcooler 3 for the second time for the first time.
In addition, Fig. 1 also shows, and in shell and tube condenser 1, dividing plate 7 is arranged on the position between refrigerant inlet 11 and the refrigerant exit 13, and the condensation area under control and shows the condenser pipe 15 in the condensation area under control, the supercooling tube 17 in the supercooling tube district on the supercooling tube district.In other words, in shell and tube condenser 1, condensation area under control, dividing plate 7, supercooling tube district are along setting gradually from refrigerant inlet 11 directions to refrigerant exit 13.
On the other hand, the present invention also provides a kind of air-conditioning, referring to Fig. 1, air-conditioning of the present invention has aforementioned any supercooling apparatus of the present invention, and evaporimeter 6, compressor 9, wherein, compressor 9 is for having the magnetic suspension centrifugal compressor of air entry 93, secondary air entry 95, exhaust outlet 91.Refrigerant inlet 11 is communicated with the exhaust outlet 91 of compressor, the outlet 33 of first refrigerant passage of subcooler 3 is communicated with the secondary air entry 95 of compressor 9, and the outlet 35 of second refrigerant passage of subcooler 3 is communicated with the air entry 93 of compressor via electric expansion valve 41, evaporimeter 6 successively.Electric expansion valve shown in Fig. 1 41 is arranged on the refrigerant pipeline 4 between subcooler 3 and the evaporimeter 6.
Further, illustrated among Fig. 1 on the first refrigerant pipeline 2 between the secondary air entry 95 of the outlet 33 of first refrigerant passage of subcooler 3 and compressor 9, be in series with temperature sensor 21, pressure sensor 23 successively, to detect the temperature and pressure of refrigerant respectively.
It may be noted that, as optimal way, air-conditioning of the present invention is the centrifugal central air-conditioning of magnetic suspension, the central air-conditioning that promptly has the magnetic suspension centrifugal compressor, during now with its refrigerating operaton is example, produce the gas of HTHP by compressor 9 consumed powers, the pipe 15 that is condensed in condenser 1 is condensed into the saturated liquid of temperature in the high pressure, passing through cold baffle 7 back then, to continue cold acquisition by supercooling tube 17 once cold excessively, and once cross cold functional flow diagram: compressor 9-condenser 1-condenser pipe 15-crosses cold baffle 7-supercooling tube 17; The liquid refrigerants of once crossing after cold is flowed out by the refrigerant exit of condenser 1, be divided into two-way through refrigerant pipe (liquid pipe), 5 throttlings of one tunnel process electric expansion valve are forced down the inlet 37 that geothermal liquid enters subcooler in being, force down the wet body in subcooler 3, fully being evaporated to after export the 33 secondary air entries 95 (middle air entry) that enter compressor 9, electric expansion valve 5 controls adopt temperature sensor 21 (T) and pressure sensor 23 (P) to control, other one the tunnel 31 enters subcooler 3 through entering the mouth, emitting heat, to produce secondary cold excessively, crosses liquid after cold and flow out subcooler 3 through the back and arrive electric expansion valve 41.
Air-conditioning of the present invention is owing to adopted the above-mentioned supercooling apparatus of the present invention, in the centrifugal central air-conditioning of magnetic suspension, can give full play to the air-breathing Interface design advantage of magnetic suspension centrifugal compressor secondary, adopt electric expansion valve to cooperate suction superheat control to guarantee that secondary is air-breathing and have enough degrees of superheat, under different operating modes, can both prevent absorbing gas belt liquid, further again, than prior art, air-conditioning of the present invention can obtain 10 spend cold, improve refrigerating capacity more than 5%, efficiency improves more than 4%.
Again on the one hand, the present invention also provides a kind of method of controlling cold medium flux in the air-conditioning, at air-conditioning be the aforesaid air-conditioning of the present invention, method of the present invention comprises: first refrigerant passage of subcooler 3 is exported the temperature and pressure of the gaseous coolant at 33 places, detect; Calculate the degree of superheat according to detected temperature and pressure value; And the degree of superheat and the default degree of superheat that calculates compared, and determine whether to regulate the aperture of electric expansion valve 5 in the supercooling apparatus according to comparative result.When the degree of superheat that calculates is not equal to the default degree of superheat, the aperture of regulating the electric expansion valve 5 in the supercooling apparatus; When the degree of superheat that calculates equals to preset the degree of superheat, keep the aperture of electric expansion valve 5 in the supercooling apparatus constant.That is, regulate the aperture of electric expansion valve in response to suction superheat, thus the cold medium flux in the control air-conditioning.By this, method of the present invention obtains to improve unit refrigerant refrigerating capacity than conventional method high supercooling degree more, reduces coolant injection amount and heat exchanger copper pipe use amount, improves air-conditioning unit efficiency, reaches energy-conservation purpose.
Below, in conjunction with Fig. 1 and Fig. 2 method of the present invention is described in more detail.Delay predetermined time after the start, start supercooling apparatus then, the aperture A of electric expansion valve 5 in the default again supercooling apparatus, maintenance aperture A is constant and make the air-conditioning continuous service scheduled time, afterwards according to the aperture A that is judged whether needs adjusting electric expansion valve 5 by temperature sensor 21 detected temperature signals, pressure sensor 23 detected pressure signals.If determine to need regulate aperture A, then aperture A is regulated and continue deterministic process until regulate the result satisfy pre-conditioned till, the aperture after keeping then regulating is constant.In brief, as long as do not satisfy the condition that default suction superheat limits, the aperture of just regulating electric expansion valve in the supercooling apparatus, so circulation is until satisfying condition.
Further describe as follows about the condenser that is provided with the supercooling tube district that relates among the present invention, specifically referring to Fig. 3, Fig. 3 showed cold baffle 7, and the supercooling tube 17, subcooler deflection plate 81, distance sink tube 83, pull bar 85, the nut 87 that constitute subcooler deflection plate assembly, wherein, subcooler deflection plate assembly and condenser bottom spot welding weld together, two the side welding of cold baffle 7 with the cylindrical shell of shell and tube condenser, the saturated liquid heat exchange in subcooler deflection plate assembly that enters the supercooling tube district will be crossed.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a supercooling apparatus is characterized in that, comprising:
Shell and tube condenser (1) has the condensation area under control and the supercooling tube district that are separated into by dividing plate (7), and described dividing plate (7) is located at the refrigerant inlet (11) of described shell and tube condenser and the position between the refrigerant exit (13); And
Electric expansion valve (5), have the subcooler (3) of first refrigerant passage and second refrigerant passage,
Wherein, the refrigerant exit of described shell and tube condenser (13) is communicated with the inlet (37) of described first refrigerant passage via described electric expansion valve (5), and directly is communicated with the inlet (31) of described second refrigerant passage via the refrigerant pipe.
2. supercooling apparatus according to claim 1 is characterized in that, in described shell and tube condenser (1), described condensation area under control, dividing plate (7), supercooling tube district set gradually along the direction from described refrigerant inlet (11) to refrigerant exit (13).
3. an air-conditioning is characterized in that, has the described supercooling apparatus of aforementioned each claim.
4. air-conditioning according to claim 3 is characterized in that, also has evaporimeter (6), compressor (9), and described compressor (9) is the magnetic suspension centrifugal compressor with air entry (93), secondary air entry (95), exhaust outlet (91),
Wherein, the refrigerant of shell and tube condenser inlet (11) is communicated with the exhaust outlet (91) of described compressor in the described supercooling apparatus, the outlet (33) of first refrigerant passage of subcooler is communicated with the secondary air entry (95) of described compressor in the described supercooling apparatus, and the outlet (35) of second refrigerant passage of subcooler is communicated with the air entry (93) of described compressor via another electric expansion valve (41), described evaporimeter (6) successively in the described supercooling apparatus.
5. air-conditioning according to claim 4 is characterized in that, the outlet (33) of first refrigerant passage of described subcooler and the secondary air entry (95) of described compressor are communicated with by the first refrigerant pipeline (2),
Wherein, on the described first refrigerant pipeline (2), be in series with the temperature sensor (21) that detects refrigerant temperature, the pressure sensor (23) that detects refrigerant pressure successively.
6. according to each described air-conditioning among the claim 3-5, it is characterized in that described air-conditioning is the centrifugal central air-conditioning of magnetic suspension.
7. control among the claim 3-6 method of cold medium flux in each described air-conditioning for one kind, it is characterized in that, comprise the steps:
The temperature and pressure of the gaseous coolant that first refrigerant passage of described subcooler (3) outlet (33) is located detects;
Calculate the degree of superheat according to detected temperature and pressure value; And
The described degree of superheat and the default suction superheat that calculate are compared, and determine whether to regulate the aperture of electric expansion valve in the described supercooling apparatus (5) according to comparative result.
8. method according to claim 7 is characterized in that, before the temperature and pressure that detects described gaseous coolant, and the described operation of air conditioner scheduled time,
Wherein, at whole described predetermined time period, the aperture of electric expansion valve in the described supercooling apparatus (5) remains unchanged.
9. according to claim 7 or 8 described methods, it is characterized in that,
When the described degree of superheat that calculates is not equal to described default suction superheat, the aperture of regulating the electric expansion valve (5) in the described supercooling apparatus;
When the described degree of superheat that calculates equals described default suction superheat, keep the aperture of electric expansion valve in the described supercooling apparatus (5) constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105786370A CN102032725A (en) | 2010-12-08 | 2010-12-08 | Supercooling device, air conditioner with device and method for controlling refrigerant flow of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105786370A CN102032725A (en) | 2010-12-08 | 2010-12-08 | Supercooling device, air conditioner with device and method for controlling refrigerant flow of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102032725A true CN102032725A (en) | 2011-04-27 |
Family
ID=43885946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105786370A Pending CN102032725A (en) | 2010-12-08 | 2010-12-08 | Supercooling device, air conditioner with device and method for controlling refrigerant flow of air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102032725A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090599A (en) * | 2011-11-03 | 2013-05-08 | 上海瀚艺冷冻机械有限公司 | High energy efficiency dry shell and tube condensing heat exchanger with tube for subcooling |
| CN103175276A (en) * | 2013-04-12 | 2013-06-26 | 南京佳力图空调机电有限公司 | Air-cooling direct-current frequency-conversion magnetic levitation nature cold source water chilling unit |
| CN103206814A (en) * | 2013-04-12 | 2013-07-17 | 南京佳力图空调机电有限公司 | Supercooling device for magnetic suspension refrigerating system with natural cold source |
| CN103438544A (en) * | 2013-09-04 | 2013-12-11 | 深圳麦克维尔空调有限公司 | Method and system for controlling superheat degree of air-conditioning equipment |
| CN104990230A (en) * | 2015-07-28 | 2015-10-21 | 广东美的暖通设备有限公司 | Air-conditioning system and control method thereof |
| CN105299771A (en) * | 2015-10-14 | 2016-02-03 | 珠海格力电器股份有限公司 | Water-cooled air conditioning unit and control method of supercooling degree thereof |
| CN106091209A (en) * | 2016-08-18 | 2016-11-09 | 黄国和 | A kind of electromagnetic levitation type steam energy heat pump type air conditioning system |
| CN106196367A (en) * | 2016-07-15 | 2016-12-07 | 珠海格力电器股份有限公司 | Air conditioning system with gas-liquid separator for recooling and control method thereof |
| CN106247648A (en) * | 2015-06-05 | 2016-12-21 | 通用汽车环球科技运作有限责任公司 | Ac refrigerant loop |
| CN107421176A (en) * | 2017-06-28 | 2017-12-01 | 珠海格力电器股份有限公司 | Control method of electronic expansion valve and heat pump system |
| CN108375237A (en) * | 2018-02-28 | 2018-08-07 | 四川长虹空调有限公司 | A kind of air-conditioning system and economizer control method for electronic expansion valve |
| CN110296518A (en) * | 2019-07-12 | 2019-10-01 | 宁波奥克斯电气股份有限公司 | The multi-joint interior machine control method for electronic expansion valve of one kind, device and air conditioner |
| CN111271814A (en) * | 2019-07-22 | 2020-06-12 | 宁波奥克斯电气股份有限公司 | Refrigerant flow control method and device and air conditioner |
| CN107655164B (en) * | 2017-09-07 | 2020-08-04 | 三菱重工海尔(青岛)空调机有限公司 | Method for controlling opening degree of electronic expansion valve of indoor unit of air conditioner of water system |
| CN112113364A (en) * | 2019-06-22 | 2020-12-22 | 青岛海尔空调电子有限公司 | Water chilling unit and control method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998009118A1 (en) * | 1996-08-27 | 1998-03-05 | Daikin Industries, Ltd. | Air conditioner |
| CN2529164Y (en) * | 2002-03-19 | 2003-01-01 | 清华同方股份有限公司 | Heat Pump air conditioning machine set for cold area |
| DE10250384A1 (en) * | 2001-10-30 | 2003-05-15 | Denso Corp | Coolant or refrigerant condenser for vehicle air conditioning system, has condensing region, container for separating condensed coolant into gas, liquid, storing liquid, filter, supercooling region in one piece with condensing region |
| CN200940968Y (en) * | 2006-08-07 | 2007-08-29 | 北京市京科伦冷冻设备有限公司 | Refrigeration unit structure |
| CN100365357C (en) * | 2004-11-24 | 2008-01-30 | 株式会社大宇电子 | Heat pump and structure of extraction heat exchanger thereof |
| JP2009257706A (en) * | 2008-04-18 | 2009-11-05 | Daikin Ind Ltd | Refrigerating apparatus |
| CN201440016U (en) * | 2009-08-06 | 2010-04-21 | 珠海格力电器股份有限公司 | Built-in subcooler structure of horizontal shell and tube condenser |
| CN201463390U (en) * | 2009-07-30 | 2010-05-12 | 天津商业大学 | Two-stage Compression Vapor Refrigeration System with Low-pressure Stage Supplementary Air |
| JP2010117072A (en) * | 2008-11-12 | 2010-05-27 | Mitsubishi Heavy Ind Ltd | Refrigerating device |
| CN202057120U (en) * | 2010-12-08 | 2011-11-30 | 海尔集团公司 | Supercooling device and air-conditioner employing same |
-
2010
- 2010-12-08 CN CN2010105786370A patent/CN102032725A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998009118A1 (en) * | 1996-08-27 | 1998-03-05 | Daikin Industries, Ltd. | Air conditioner |
| DE10250384A1 (en) * | 2001-10-30 | 2003-05-15 | Denso Corp | Coolant or refrigerant condenser for vehicle air conditioning system, has condensing region, container for separating condensed coolant into gas, liquid, storing liquid, filter, supercooling region in one piece with condensing region |
| CN2529164Y (en) * | 2002-03-19 | 2003-01-01 | 清华同方股份有限公司 | Heat Pump air conditioning machine set for cold area |
| CN100365357C (en) * | 2004-11-24 | 2008-01-30 | 株式会社大宇电子 | Heat pump and structure of extraction heat exchanger thereof |
| CN200940968Y (en) * | 2006-08-07 | 2007-08-29 | 北京市京科伦冷冻设备有限公司 | Refrigeration unit structure |
| JP2009257706A (en) * | 2008-04-18 | 2009-11-05 | Daikin Ind Ltd | Refrigerating apparatus |
| JP2010117072A (en) * | 2008-11-12 | 2010-05-27 | Mitsubishi Heavy Ind Ltd | Refrigerating device |
| CN201463390U (en) * | 2009-07-30 | 2010-05-12 | 天津商业大学 | Two-stage Compression Vapor Refrigeration System with Low-pressure Stage Supplementary Air |
| CN201440016U (en) * | 2009-08-06 | 2010-04-21 | 珠海格力电器股份有限公司 | Built-in subcooler structure of horizontal shell and tube condenser |
| CN202057120U (en) * | 2010-12-08 | 2011-11-30 | 海尔集团公司 | Supercooling device and air-conditioner employing same |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090599A (en) * | 2011-11-03 | 2013-05-08 | 上海瀚艺冷冻机械有限公司 | High energy efficiency dry shell and tube condensing heat exchanger with tube for subcooling |
| CN103206814B (en) * | 2013-04-12 | 2015-12-23 | 南京佳力图空调机电有限公司 | A kind of supercooling apparatus being applied to natural cooling source magnetic suspension refrigeration system |
| CN103175276A (en) * | 2013-04-12 | 2013-06-26 | 南京佳力图空调机电有限公司 | Air-cooling direct-current frequency-conversion magnetic levitation nature cold source water chilling unit |
| CN103206814A (en) * | 2013-04-12 | 2013-07-17 | 南京佳力图空调机电有限公司 | Supercooling device for magnetic suspension refrigerating system with natural cold source |
| CN103438544A (en) * | 2013-09-04 | 2013-12-11 | 深圳麦克维尔空调有限公司 | Method and system for controlling superheat degree of air-conditioning equipment |
| CN103438544B (en) * | 2013-09-04 | 2015-11-11 | 深圳麦克维尔空调有限公司 | A kind of control method for overheat of air-conditioning equipment and system |
| CN106247648A (en) * | 2015-06-05 | 2016-12-21 | 通用汽车环球科技运作有限责任公司 | Ac refrigerant loop |
| CN104990230B (en) * | 2015-07-28 | 2018-04-06 | 广东美的暖通设备有限公司 | Air-conditioning system and its control method |
| CN104990230A (en) * | 2015-07-28 | 2015-10-21 | 广东美的暖通设备有限公司 | Air-conditioning system and control method thereof |
| CN105299771A (en) * | 2015-10-14 | 2016-02-03 | 珠海格力电器股份有限公司 | Water-cooled air conditioning unit and control method of supercooling degree thereof |
| CN105299771B (en) * | 2015-10-14 | 2017-12-19 | 珠海格力电器股份有限公司 | Water-cooled air conditioning unit and control method of supercooling degree thereof |
| CN106196367A (en) * | 2016-07-15 | 2016-12-07 | 珠海格力电器股份有限公司 | Air conditioning system with gas-liquid separator for recooling and control method thereof |
| CN106196367B (en) * | 2016-07-15 | 2019-08-20 | 珠海格力电器股份有限公司 | Air conditioning system with gas-liquid separator for recooling and control method thereof |
| CN106091209A (en) * | 2016-08-18 | 2016-11-09 | 黄国和 | A kind of electromagnetic levitation type steam energy heat pump type air conditioning system |
| CN107421176A (en) * | 2017-06-28 | 2017-12-01 | 珠海格力电器股份有限公司 | Control method of electronic expansion valve and heat pump system |
| CN107421176B (en) * | 2017-06-28 | 2019-07-23 | 珠海格力电器股份有限公司 | Control method of electronic expansion valve and heat pump system |
| CN107655164B (en) * | 2017-09-07 | 2020-08-04 | 三菱重工海尔(青岛)空调机有限公司 | Method for controlling opening degree of electronic expansion valve of indoor unit of air conditioner of water system |
| CN108375237A (en) * | 2018-02-28 | 2018-08-07 | 四川长虹空调有限公司 | A kind of air-conditioning system and economizer control method for electronic expansion valve |
| CN112113364A (en) * | 2019-06-22 | 2020-12-22 | 青岛海尔空调电子有限公司 | Water chilling unit and control method |
| CN110296518A (en) * | 2019-07-12 | 2019-10-01 | 宁波奥克斯电气股份有限公司 | The multi-joint interior machine control method for electronic expansion valve of one kind, device and air conditioner |
| CN111271814A (en) * | 2019-07-22 | 2020-06-12 | 宁波奥克斯电气股份有限公司 | Refrigerant flow control method and device and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102032725A (en) | Supercooling device, air conditioner with device and method for controlling refrigerant flow of air conditioner | |
| CN107575971B (en) | Evaporative water chilling unit and control method | |
| CN201844484U (en) | Air-conditioning system for direct type ground source heat pump | |
| CN201331214Y (en) | Heat pump type air conditioning system | |
| CN111251802A (en) | Thermal management system of vehicle and vehicle | |
| CN102252361A (en) | Hot water supply device associated with heat pump and method for controlling the same | |
| CN202675719U (en) | Air-cooled heat pump air conditioner | |
| CN202057120U (en) | Supercooling device and air-conditioner employing same | |
| CN111251804A (en) | Thermal management system of vehicle and vehicle | |
| CN111251801A (en) | Thermal management system of vehicle and vehicle | |
| CN112361668A (en) | Supercooling device, shell and tube condenser and water cooling unit | |
| CN209240827U (en) | Mounted air conditioner system and vehicle | |
| CN103604237A (en) | Air conditioner and method for controlling same | |
| CN106394183A (en) | CO2 heat pump air conditioner system and control method thereof | |
| CN101153760A (en) | Air conditioner back-heating device and its control method | |
| CN109682127B (en) | High-efficiency energy-saving multi-loop evaporator | |
| CN104896587B (en) | Air conditioner | |
| CN200986276Y (en) | Composite multiple controlled cold and warm air conditioner hot-water center | |
| CN202928225U (en) | Plate-type integrated refrigerant thermal recovery circulation system | |
| CN111251803A (en) | Thermal management system of vehicle and vehicle | |
| CN204717867U (en) | Air-conditioner | |
| CN202928175U (en) | Air conditioning system | |
| CN202188703U (en) | Air-cooling spillover type cold water machine set | |
| CN202581554U (en) | Pipeline system of single-refrigeration air conditioner | |
| CN207501480U (en) | A kind of low temperature frequency conversion increasing enthalpy air-cooled heat pump unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110427 |