CN201363949Y - Air-conditioning system with fixed-frequency compressor - Google Patents
Air-conditioning system with fixed-frequency compressor Download PDFInfo
- 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
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- China
- Prior art keywords
- compressor
- heat exchanger
- air
- conditioning system
- pressure end
- Prior art date
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- Expired - Lifetime
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Abstract
The utility model 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. A low-pressure end of the compressor, the first heat exchanger, the throttling element, the second heat exchanger and a 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 lower-pressure end of the compressor to form a bypass pipeline; and control valves are arranged on both the main pipeline and the bypass pipeline. When the fixed-frequency compressor is used, refrigeration or heating can be stopped while the operation of the compressor is not stopped after the setting temperature is reached, so as to realize the idling of the compressor. Therefore, the utility model has a good energy-saving effect.
Description
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.
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)
| Country | Link |
|---|---|
| CN (1) | CN201363949Y (en) |
Cited By (3)
| 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 |
-
2009
- 2009-03-02 CN CNU2009200519179U patent/CN201363949Y/en not_active Expired - Lifetime
Cited By (4)
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |