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CN201363949Y - Air conditioning system with fixed-frequency compressor - Google Patents

Air conditioning system with fixed-frequency compressor Download PDF

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Publication number
CN201363949Y
CN201363949Y CNU2009200519179U CN200920051917U CN201363949Y CN 201363949 Y CN201363949 Y CN 201363949Y CN U2009200519179 U CNU2009200519179 U CN U2009200519179U CN 200920051917 U CN200920051917 U CN 200920051917U CN 201363949 Y CN201363949 Y CN 201363949Y
Authority
CN
China
Prior art keywords
compressor
heat exchanger
conditioning system
low
pressure end
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
Application number
CNU2009200519179U
Other languages
Chinese (zh)
Inventor
胡余生
陈东锁
钟成堡
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CNU2009200519179U priority Critical patent/CN201363949Y/en
Application granted granted Critical
Publication of CN201363949Y publication Critical patent/CN201363949Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The application discloses an air conditioning system with a fixed-frequency compressor, which comprises the fixed-frequency compressor, a first heat exchanger, a second heat exchanger, a throttling element and a control circuit, wherein the low-pressure end of the compressor, the first heat exchanger, the throttling element, the second heat exchanger and the high-pressure end of the compressor are connected through connecting pipes in sequence to form a main pipeline; a bypass pipe is arranged between the high-pressure end and the low-pressure end of the compressor to form a bypass pipeline, and control valves are arranged on the main pipeline and the bypass pipeline. Under the condition of using the fixed-frequency compressor, after the set temperature is reached, the refrigeration or heating can be stopped without stopping the work of the compressor, so that the idling of the compressor is realized, and the energy-saving effect is good.

Description

The air-conditioning system that has invariable frequency compressor
Technical field
The application relates to a kind of air-conditioning system that has invariable frequency compressor.
Background technology
At present, invariable frequency compressor is usually used in field of air conditioning, but has the air-conditioning system of invariable frequency compressor, and it is higher to consume energy, and mainly is that probably about 84%, the frequency changer efficient that occurs reaches 92% because fixed frequency efficiency of motor is lower, and its efficient exceeds a lot; Another reason be decide the frequency machine the mode of operation in the air-conditioning system be reaching assigned temperature after, need the halt system running, therefore pass on signal by temperature sensor, allow the motor stall, starter motor once more after temperature is elevated to a certain degree again, such frequency is very high, uses the words of air-conditioning will cause the motor frequent start-stop for a long time, and electric motor starting time power consumption is higher, and this is to cause consuming energy and reduce one of principal element of energy level.
Summary of the invention
The application's purpose is to provide a kind of air-conditioning system that has invariable frequency compressor, after using under the situation of invariable frequency compressor, reaching design temperature, can stop to freeze or heats and do not stop the work of compressor, realizes the idle running of compressor, good energy-conserving effect.
Its technical scheme is as follows:
A kind of air-conditioning system that has invariable frequency compressor, comprise invariable frequency compressor, first heat exchanger, second heat exchanger, restricting element and control circuit, compressor low-pressure end, first heat exchanger, restricting element, second heat exchanger, compressor high-voltage end are connected to form main line by tube connector successively; Between compressor high-voltage end, low-pressure end, be provided with bypass pipe and form bypass line, on main line, be provided with by-pass valve control.
Under normal operating condition, invariable frequency compressor starts, heat-exchange working medium is under the effect of compressor, at compressor, first heat exchanger, restricting element, circulate between second heat exchanger, thereby the refrigeration of realization or heat-production functions, when system refrigeration or heat acquire a certain degree after, control circuit sends control signal to by-pass valve control, make between the compressor high-voltage end and first heat exchanger, all disconnect between the compressor low-pressure end and second heat exchanger, conducting between compressor high-voltage end and the low-pressure end, the heat-exchange working medium of discharging from compressor high-voltage end directly flow back into low-pressure end through bypass pipe, the energy consumption in compressor when idle running is extremely low, and compressor does not shut down but institute's consuming electric power is little, avoids frequent starting and the energy consumption that causes, good energy-conserving effect, when compressor also very little from idle running operating mode time that goes to nominal situation institute's consuming electric power.
The application's further structure is:
On described bypass line, also be provided with by-pass valve control.
Described by-pass valve control on the described main line is located between the described compressor high-voltage end and first heat exchanger at least, between compressor low-pressure end and second heat exchanger.Under compressor idle running operating mode, by-pass valve control can effectively disconnect heat-exchange working medium in first heat exchanger, second heat exchanger and compressor.
Described by-pass valve control is triple valve and switch valve, and triple valve is located between described compressor high-voltage end, first heat exchanger, the bypass pipe, and switch valve is located between described second heat exchanger and the bypass pipe.Under nominal situation, connect between the compressor high-voltage end and first heat exchanger, to connect between the compressor low-pressure end and second heat exchanger, bypass pipe can not carry out bypass; After reaching design temperature, under the control of control circuit, switch valve cuts out, triple valve between the compressor high-voltage end and first heat exchanger is closed, triple valve between compressor high-voltage end and the bypass pipe is opened, the heat-exchange working medium of discharging from compressor high-voltage end directly flow back into the compressor low-pressure end through bypass pipe, compressor dallies and does not stop, when freezing once more or heating, bypass pipe cuts out, heat-exchange working medium first heat exchanger of flowing through once more, restricting element, second heat exchanger, because compressor need not restart, avoid the frequent starting of compressor, good energy-conserving effect.
Description of drawings
Fig. 1 is a structure chart of the present utility model;
Description of reference numerals:
1, compressor, 2, triple valve, 3, switch valve, 4, first heat exchanger, 5, second heat exchanger, 6, restricting element, 7, low-pressure end, 8, high-pressure side, 9, bypass pipe, 10, tube connector, 11, suction muffler, 12, the chamber of calming the anger.
The specific embodiment
As shown in Figure 1, a kind of air-conditioning system that has invariable frequency compressor, comprise invariable frequency compressor 1, first heat exchanger 4, second heat exchanger 5, restricting element 6 and control circuit (not shown), compressor 1 low-pressure end 7, first heat exchanger 4, restricting element 6, second heat exchanger 5, compressor 1 high-pressure side 8 are connected to form main line by tube connector 10 successively; Between compressor 1 high-pressure side 8, low-pressure end 7, be provided with bypass pipe 9 and form bypass line, on main line, be provided with by-pass valve control.
Wherein, described by-pass valve control on the described main line is located between described compressor 1 high-pressure side 8 and first heat exchanger 4 at least, between compressor 1 low-pressure end 7 and second heat exchanger 5 (as shown in Figure 1, described by-pass valve control is triple valve 2 and switch valve 3, triple valve 2 is located between described compressor 1 high-pressure side 8, first heat exchanger 4, the bypass pipe 9, and switch valve 3 is located between second heat exchanger 5 and the bypass pipe 9).
What present embodiment adopted is the roller type compressor, roller and slide plate in it are divided into two air cavitys to cylinder: the suction muffler 11 and the chamber 12 of calming the anger, low pressure heat-exchange working medium in the suction muffler 11 forms the chamber 12 of calming the anger after being reached certain pressure by roller rotation compression, the heat-exchange working medium of high pressure makes air bleeding valve open after the compression, heat-exchange working medium is discharged to tube connector 10, under nominal situation, heat-exchange working medium flow back into suction muffler 11 by compressor 1 low-pressure end 7 behind first heat exchanger 4, restricting element 6, second heat exchanger 5; When bypass pipe 9 conductings, directly flow back into the low-pressure end 7 of compressor 1 by bypass pipe 9 from the heat-exchange working medium of compressor 1 high-pressure side 8 discharge high pressure, and enter suction muffler 11, the gas of this moment does not pass through step-down, also be high pressure conditions so enter the heat-exchange working medium of suction muffler 11, so suction muffler 11 that roller bears and the pressure reduction of calming the anger between the chamber 12 are very little, promptly the load of being born is very little, energy consumption during compressor 1 idle running is extremely low, compressor 1 does not shut down but institute's consuming electric power is little, the energy consumption of avoiding frequent starting and causing, good energy-conserving effect, when compressor 1 also very little from idle running operating mode time that goes to nominal situation institute's consuming electric power.
Below only be the application's preferred embodiment, do not limit the application's protection domain with this; Do not violate any replacement and the improvement of being done on the basis of the application design, all belonging to the application's protection domain.

Claims (4)

1, a kind of air-conditioning system that has invariable frequency compressor, comprise invariable frequency compressor, first heat exchanger, second heat exchanger, restricting element and control circuit, compressor low-pressure end, first heat exchanger, restricting element, second heat exchanger, compressor high-voltage end are connected to form main line by tube connector successively, it is characterized in that, between compressor high-voltage end, low-pressure end, be provided with bypass pipe and form bypass line, on main line, be provided with by-pass valve control.
2, have the air-conditioning system of invariable frequency compressor according to claim 1, it is characterized in that, on described bypass line, also be provided with by-pass valve control.
As having the air-conditioning system of invariable frequency compressor as described in the claim 2, it is characterized in that 3, the described by-pass valve control on the described main line is located between the described compressor high-voltage end and first heat exchanger at least, between compressor low-pressure end and second heat exchanger.
4, as having the air-conditioning system of invariable frequency compressor as described in the claim 3, it is characterized in that, described by-pass valve control is triple valve and switch valve, and triple valve is located between described compressor high-voltage end, first heat exchanger, the bypass pipe, and switch valve is located between described second heat exchanger and the bypass pipe.
CNU2009200519179U 2009-03-02 2009-03-02 Air conditioning system with fixed-frequency compressor Expired - Lifetime CN201363949Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009200519179U CN201363949Y (en) 2009-03-02 2009-03-02 Air conditioning system with fixed-frequency compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200519179U CN201363949Y (en) 2009-03-02 2009-03-02 Air conditioning system with fixed-frequency compressor

Publications (1)

Publication Number Publication Date
CN201363949Y true CN201363949Y (en) 2009-12-16

Family

ID=41474617

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2009200519179U Expired - Lifetime CN201363949Y (en) 2009-03-02 2009-03-02 Air conditioning system with fixed-frequency compressor

Country Status (1)

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CN (1) CN201363949Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305505A (en) * 2011-07-22 2012-01-04 武汉市汉立电器有限公司 Constant-temperature cold water unit and control method thereof
US10941955B2 (en) 2017-10-27 2021-03-09 Dometic Sweden Ab Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle
US11254183B2 (en) 2017-08-25 2022-02-22 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102305505A (en) * 2011-07-22 2012-01-04 武汉市汉立电器有限公司 Constant-temperature cold water unit and control method thereof
US11254183B2 (en) 2017-08-25 2022-02-22 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device
US11919363B2 (en) 2017-08-25 2024-03-05 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device
US10941955B2 (en) 2017-10-27 2021-03-09 Dometic Sweden Ab Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle

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Granted publication date: 20091216