CN201954710U - Air conditioner - Google Patents
Air conditioner Download PDFInfo
- Publication number
- CN201954710U CN201954710U CN2011200964954U CN201120096495U CN201954710U CN 201954710 U CN201954710 U CN 201954710U CN 2011200964954 U CN2011200964954 U CN 2011200964954U CN 201120096495 U CN201120096495 U CN 201120096495U CN 201954710 U CN201954710 U CN 201954710U
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- Prior art keywords
- compressor
- air
- pressure sensor
- conditioner
- temperature
- 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.)
- Expired - Lifetime
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- 238000005057 refrigeration Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 description 13
- 238000004378 air conditioning Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The utility model discloses an air conditioner. The air conditioner comprises a controller, a refrigerating system and a temperature sensing system, wherein the refrigerating system consists of a compressor, a condenser, an evaporator, an electronic expansion valve and a four-way valve; the condenser is provided with an external fan; and the air conditioner also comprises a high pressure sensor arranged on the exhaust pipeline of the compressor and a low pressure sensor arranged on the air return pipeline of the compressor.
Description
Technical field
The utility model relates to the air-conditioner technical field, specifically, relates to a kind of air-conditioner that has pressure sensor.
Background technology
The air-conditioner cooling cycle system is made of condenser, evaporimeter, compressor, these four big parts of throttle part, circulates in these four big parts as the cold-producing medium of energy transmission medium.Temperature value when refrigerant is worked in each parts and force value then are the major parameters of the whole air-conditioning refrigeration system operation of control.Common control method is to utilize the temperature value of refrigerant in each parts to control at present, such as muffler temperature, off-premises station heat exchanger coils middle part temperature and the indoor set heat exchanger coils middle part temperature etc. of the Tail Pipe Temperature that compressor is arranged, compressor.Because of temperature sensor is not that refrigerant direct and in the system pipeline contacts, refrigerant temperature just can pass to temperature sensor by the heat conduction of pipeline outer wall and the two-layer copper wall of temperature-sensitive sleeve, and temperature sensor directly contacts with environment temperature, and this is not the true temperature of refrigerant with regard to the temperature value that has caused temperature sensor to experience.In addition, the temperature parameter hysteresis effect in the air-conditioning system is apparent in view, can not embody by temperature parameter when running state of air conditioner changes at once.
Though existing this to utilize the control method of temperature sensor be simple, cost is low, because its exists and detects inaccurately, drawback such as hysteresis effect is obvious is difficult to satisfy the control requirement of complicated air-conditioning system, particularly connected machine system.
The utility model content
The utility model purpose is intended to overcome above-mentioned the deficiencies in the prior art; a kind of refrigerant pressure that transmits refrigeration system by pressure sensor is provided; thereby make controller in time, the air-conditioner of exactly operation of refrigeration system being made adjustment; realization system quick adjustment, the function of protecting have fast guaranteed the high efficient and reliable operation of system.
The technical solution adopted in the utility model is: a kind of air-conditioner, comprise controller, refrigeration system, temperature-sensing system, described refrigeration system is made up of compressor, condenser, evaporimeter, electric expansion valve, cross valve, described condenser is provided with outer blower fan, also comprises the high-pressure sensor on the gas exhaust piping that is located at described compressor and is located at low-pressure sensor on the return line of described compressor.
Above-mentioned air-conditioner, described low-pressure sensor is located between compressor and the fluid reservoir.
Compared with prior art, the utlity model has following advantage:
1, pressure sensor directly contacts with refrigerant in the pipeline, can be in time, high pressure, the low pressure value of accurately detection system operation, and accurate fast control and the protection of implementing air-conditioning system.
2, according to system loading, detection system height pressure is regulated outer blower fan rotating speed, and system's operation is more reliable, and Energy Efficiency Ratio is higher.
3, according to system requirements, detection system height pressure cooperates the accurate quick adjustment of electric expansion valve enforcement to refrigerant, and system's operation is more reliable, and Energy Efficiency Ratio is higher.
4, according to system requirements, detection system height pressure, the control that the output of function power is regulated outside implementing in the varying capacity system makes system more efficient, and seasonal energy efficiency ratio (seer) is better, and system's operation is more reliable.
5, pressure control faster than temperature control, can realize the quick protection of system far away
Description of drawings
Fig. 1 is an air-conditioner refrigerating system structural representation of the present utility model.
The specific embodiment
Embodiment one
Fig. 1 is the refrigerant system configurations figure of air-conditioner of the present utility model, refrigeration system is made up of several big critical pieces: compressor 1, condenser 4, evaporimeter 7, electric expansion valve 6, cross valve 3 are formed, condenser 4 is provided with outer blower fan 5, and evaporimeter 7 is provided with inner blower 8.Fluid reservoir 9 is connected on the return line of compressor 1.High-pressure sensor 2 is located on the gas exhaust piping of compressor 1 and is provided with before four-way 3 valves, and low-pressure sensor 10 is located between compressor 1 and the fluid reservoir 9.In Fig. 1, controller, the temperature-sensing system of air-conditioner are not shown.
Air-conditioner has refrigeration and heats two kinds of mode of operations, when air-conditioner during at refrigeration mode, the refrigerant flow direction of refrigeration system is a compressor 1---cross valve 3---condenser 4---electric expansion valve 6---evaporimeter 7---cross valve 3---fluid reservoir 9---compressor 1.When air-conditioner during at heating mode, the refrigerant flow direction of refrigeration system is a compressor 1---cross valve 3---evaporimeter 7---electric expansion valve 6---condenser 4---cross valve 3---fluid reservoir 9---compressor 1.
During refrigeration mode, the controller of air-conditioner is regulated according to the external blower fan 5 of system high pressure pressure, and controller is according to the pressure value P of high-pressure sensor 2
2With pressure set points P
20Relatively, work as P
2＞P
20The time, the revolution of the outer blower fan 5 of controller control raises, as high-pressure P
2＜P
20The time, the revolution of the outer blower fan 5 of controller control reduces.During air conditioner heat-production work, then regulate according to the rotating speed of the external blower fan 5 of low pressure, controller reads the pressure value P of low-pressure sensor 10
10, and with force value and pressure set points P
100Relatively, work as P
10＞P
100The time, controller reduces the revolution of outer blower fan 5, and wind speed is reduced.Work as P
10＜P
100The time, then promote outer blower fan revolution, air-conditioner can be worked in normally-pressured neighbor, effectively improve reliability of system operation and stability.
The control of refrigerant flow realizes by the aperture of electric expansion valve is controlled.This control method detects refrigeration system low pressure value by low-pressure sensor 10, the temperature of low pressure correspondence is system's evaporating temperature, computing system degree of superheat A (degree of superheat A=suction temperature-evaporating temperature) is by control system degree of superheat regulating system cold medium flux.When the degree of superheat of actual degree of superheat A＞setting, transfer the aperture of big electric expansion valve 6, increase flow system flow; As actual degree of superheat A＜degree of superheat A
0, the aperture of minimizing electric expansion valve 6 reduces flow system flow.
Embodiment two
The utility model is equally applicable in the air-conditioning system of varying capacity, and controller reads the pressure value P of high-pressure sensor 2
2, and with force value and capacity high power setting value P
21With low-pressure setting value P
22Relatively, work as P
2＞P
21The time, controller output reduces the control signal of off-premises station capacity, works as P
10＜P
22The time, controller output increases the control signal of off-premises station capacity.Reduce the ability output of outdoor machine of air-conditioner when system high pressure pressure is too high, makes high-voltage value drop to OK range, the variation of system loading is satisfied in the ability output of machine outside increasing when system high pressure is lower than setting value, and system's operation is more safe and reliable.
In the present embodiment, the rotating speed control of air-conditioner refrigeration mode and the following outer blower fan of heating mode and the control of air conditioner refrigerant flow are identical with embodiment one, no longer are repeated in this description at this.The description that should be appreciated that above-mentioned embodiment should not be considered as the restriction to the utility model claim, and change that need not creative work or the displacement made on the basis of the foregoing description still belong to protection domain of the present utility model.
Claims (2)
1. air-conditioner, comprise controller, refrigeration system, temperature-sensing system, described refrigeration system is made up of compressor (1), condenser (4), evaporimeter (7), electric expansion valve (6), cross valve (3), described condenser is provided with outer blower fan (5), it is characterized in that: also comprise the high-pressure sensor (2) on the gas exhaust piping that is located at described compressor (1) and be located at low-pressure sensor (10) on the return line of described compressor (1).
2. air-conditioner according to claim 1 is characterized in that: described low-pressure sensor (10) is located between compressor (1) and the fluid reservoir (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200964954U CN201954710U (en) | 2011-04-03 | 2011-04-03 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200964954U CN201954710U (en) | 2011-04-03 | 2011-04-03 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954710U true CN201954710U (en) | 2011-08-31 |
Family
ID=44498820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200964954U Expired - Lifetime CN201954710U (en) | 2011-04-03 | 2011-04-03 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954710U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135295A (en) * | 2011-04-03 | 2011-07-27 | Tcl空调器(中山)有限公司 | Air conditioner and control method thereof |
| CN104613609A (en) * | 2014-12-22 | 2015-05-13 | 曙光信息产业(北京)有限公司 | Air conditioning system |
| CN105485861A (en) * | 2016-01-06 | 2016-04-13 | 珠海格力电器股份有限公司 | Method and device for controlling opening of heat expansion valve of multi-split air conditioner |
-
2011
- 2011-04-03 CN CN2011200964954U patent/CN201954710U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135295A (en) * | 2011-04-03 | 2011-07-27 | Tcl空调器(中山)有限公司 | Air conditioner and control method thereof |
| CN104613609A (en) * | 2014-12-22 | 2015-05-13 | 曙光信息产业(北京)有限公司 | Air conditioning system |
| CN105485861A (en) * | 2016-01-06 | 2016-04-13 | 珠海格力电器股份有限公司 | Method and device for controlling opening of heat expansion valve of multi-split air conditioner |
| CN105485861B (en) * | 2016-01-06 | 2018-09-18 | 珠海格力电器股份有限公司 | Method and device for controlling opening of heat expansion valve of multi-split air conditioner |
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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: 20110831 |
|
| CX01 | Expiry of patent term |