CN2702090Y - Connection structure in parallel condition of compressor - Google Patents
Connection structure in parallel condition of compressor Download PDFInfo
- Publication number
- CN2702090Y CN2702090Y CN 200320117611 CN200320117611U CN2702090Y CN 2702090 Y CN2702090 Y CN 2702090Y CN 200320117611 CN200320117611 CN 200320117611 CN 200320117611 U CN200320117611 U CN 200320117611U CN 2702090 Y CN2702090 Y CN 2702090Y
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- China
- Prior art keywords
- compressor
- way valve
- constant speed
- compressors
- pipeline
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- Expired - Lifetime
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Abstract
The utility model relates to a connection structure in parallel condition of compressors, which comprises a rotary frequency conversion compressor and a constant speed compressor which are communicated with the interior of a low pressure liquid tank at an air return end. Pipes in parallel connection of an exhaust end are provided with a one-way valve and an air exhaust temperature-sensing bulb. The place between the one-way valve and a four way valve is provided with an oil eliminator which is connected with the cross valve. An oil balance pipe and control magnetic valves SV1, SV2 at both ends of the oil balance pipe can also be arranged between two compressors. The constant speed compressor is connected with a load-off actuate pipe and a magnetic valve SV3 in parallel. The utility model has the advantages of simple structure, convenient accomplishment and various modes of accomplishment. Not only a scheme is provided for overcoming the technical problem of the parallel connection of a double rotary compressor, but also an approach is provided for the parallel connection of the multi-rotary compressor. The connection structure in parallel condition of compressors effectively solves the technical problem which is confronted with the application of a small central air-conditioner assembly used for the rotary compressor at home or a particular situation.
Description
Technical field
The utility model relates to the linkage structure of a kind of compressor under state in parallel, refers in particular to connection and control structure thereof under a kind of a plurality of rotor-type compressors that adopt in aircondition state in parallel.
Background technique
In the existing commercially available domestic air conditioning and small-sized household central air conditioning plant, multi-compressor parallel running technology has obtained using widely.Operate to example (can by that analogy) with wherein double-compressor parallel, utilize scroll compressor and realize that the Balance Control technology in oil, the gas equalizing line is ripe, but because the monomer power of scroll compressor, causes power height behind the double-compressor parallel generally more than 4; In addition, the cavity of scroll compressor communicates with compressor return air, so belong to low-pressure cavity compressor, technical difficulty was less when two-shipper was in parallel.To rising and have the rotor-type compressor of the gesture of alternative scroll compressor gradually, above-mentioned scroll compressor parallel technology is inapplicable.Because the rotor compressor price is lower, a large amount of uses in aircondition; More less because of the monomer output capability of rotor-type compressor, adopt the aircondition that is combined into after two above rotor-type compressor parallel connections the complete machine refrigerating capacity also less, therefore can satisfy specific occasion uses such as family expenses, but rotor-type compressor cavity and compression mobility exhaust communicate, so belong to the hyperbaric chamber compressor, the technical difficulty of double-compressor parallel is big, is mainly reflected in the oil between the rotor-type compressor of how realizing after the parallel connection, the Balance Control in the gas equalizing line.
Summary of the invention
The purpose of this utility model provides a kind ofly can reduce the complete machine cost, satisfy the small-power use occasion, can realize the rotor-type compressor linkage structure of back in parallel compressor chamber oil, gas balance again.
Designed the linkage structure of a kind of rotor-type compressor under state in parallel according to above-mentioned purpose, comprise two compressors, the air return end of compressor all feeds low-pressure liquid storing tank, the parallel pipeline of exhaust end is provided with one-way valve and exhaust bulb, on the pipeline between one-way valve and the four-way valve, be connected to oil separator with four-way valve UNICOM, in described two compressors, one is the rotator type frequency-changeable compressor, and one is the rotator type constant speed compressor.Be provided with the oil balance tube road between two compressors, the oil balance tube road is arranged on two solenoid valve SV of serial connection mutually
1, SV
2Between, solenoid valve is connected with compressor.Also can be provided with the gas equalizing line between two compressors, the gas equalizing line is arranged on two solenoid valve SV of serial connection mutually
4, SV
5Between, solenoid valve is connected with compressor.At the two ends of constant speed compressor and the solenoid valve SV that is connected to constant speed compressor unloading primer liner and is connected in series with this pipeline
3, this solenoid valve is positioned at exhaust side, and constant speed compressor unloading primer liner is positioned at the muffler side.Air return end at constant speed compressor is communicated with the pipeline connection between this other end capillaceous and four-way valve and the oil separator with an end of a capillary.By pipeline connection, this section pipeline starts from oil separator between described oil separator tail end and low-pressure liquid storing tank, is followed successively by filter screen and capillary tube then, and capillary tube is communicated with the import of low-pressure liquid storing tank.
The utility model is simple in structure, enforcement is convenient, mode of execution is various, the scheme that solves the technical problem that the dual-rotator compressor parallel connection need overcome both was provided, for the parallel connection of many rotor-type compressors provides approach, efficiently solve rotor-type compressor and in the small central air conditioning device of family expenses or specific occasion use, use the technical barrier that is faced again.
Description of drawings
Specific embodiments
Each accompanying drawing has provided the signal of using each component annexation in the outdoor unit of air conditioner of the present utility model.In Fig. 1 gives the embodiment one who shows, enter low-pressure liquid storing tank 10 from the cold media air of indoor set after by four-way valve 1, by the sucked back compressor of muffler, illustrated compressor has two again, and one is that 5, one of frequency-changeable compressors are constant speed compressors 7.Be connected with oil balance tube road 6 between two compressors, this oil balance tube road is positioned at solenoid valve SV
1With SV
2Between.On the outlet pipe of frequency-changeable compressor, be provided with exhaust bulb 3, be connected with one-way valve 4, be parallel with solenoid valve SV at the two ends that flow back to of constant speed compressor at the exhaust end of constant speed compressor
3With constant speed compressor unloading primer liner 8, this solenoid valve and primer liner are connected mutually and solenoid valve is positioned at exhaust end.There is pipeline to communicate between the tail end of one-way valve and oil separator 2, pipeline connection between the head end of oil separator and four-way valve; Also be communicated with an end of capillary tube 9 with pipeline between the four-way valve at head end, this other end capillaceous is communicated with the muffler of constant speed compressor; Its tail end is connected with filter screen 12, the capillary tube 11 of connecting successively mutually by pipeline, and the other end capillaceous is communicated to the pipeline between four-way and low-pressure liquid storing tank.
From above-mentioned explanation to Fig. 1 as seen, design has the oil balance tube road between two rotor-type compressors, controls and realize lubricant oil balance between two compressors by the switch electromagnetic valve in this pipeline, guarantees the safe and reliable of operation.Design is useful on the constant speed rotor-type compressor unloading that guarantees clean boot and starts the loop between the outlet pipe of constant speed rotor-type compressor and muffler.In start-up course, open the solenoid valve in the relief circuit, constant speed rotor compressor high low pressure is communicated, pressure balance has guaranteed its clean boot.And rotator type constant speed compressor machine oil control loop mainly is made up of the capillary tube 9 of a Gent measured length, and its effect is to prevent that the high pressure of constant speed rotor-type compressor is higher than low pressure when the state that the frequency conversion rotor-type compressor starts, the constant speed rotor compressor stops; When this state occurred, the machine oil of constant speed rotor-type compressor was promoted to flow to by low voltage side in the cavity of compressor the return-air side of frequency conversion rotor compressor by pressure.
Fig. 2 gives and has shown the annexation between interior each component of outdoor unit among the embodiment two, and present embodiment and embodiment's one difference is the solenoid valve SV that makes usefulness that starts to control that does not have oil balance tube road and two ends thereof between two compressors
1, SV
2, that is to say that two compressors are the parallel connection relations of a kind of " purely ".The control of lubricant oil balance is by frequency and the opening, stop realizing of constant speed rotor-type compressor of control circuit by regulating the frequency conversion rotor-type compressor, reaches the purpose of regulating output thus.In start-up course,, realize the clean boot of two rotor-type compressors and guarantee lubricating between the compressor by the frequency of control frequency conversion rotor-type compressor and the combination of opening, stopping of constant speed rotor-type compressor.
Fig. 3 gives and has shown the annexation between interior each component of outdoor unit among the embodiment three, and present embodiment and embodiment's one difference is to remove the solenoid valve SV that makes usefulness that starts to control that oil balance tube road and two ends thereof are arranged between two compressors
1, SV
2, also be provided with the solenoid valve SV that starting to control of gas equalizing line 13 and two ends thereof made usefulness
4, SV
5When compressor operation, by opening the solenoid valve on the gas equalizing line, the pressure between balance two compressors is worked two machines under identical pressure; After the pressure of two machines reaches balance, open the oil balance tube road, make the lubricant oil of compressor chamber be more prone to reach balance, guaranteed maintainability.
At this; the utility model is given two kinds of embodiments when having shown by two rotor-type compressors parallel connections; described embodiment can be expanded easily according to the number change of compressor, in view of the above the innovation and creation made of thinking and improve and all belong to protection domain of the present utility model.
Claims (5)
1, the linkage structure under a kind of compressor parallel state, comprise two compressors, it is characterized in that in described two compressors, one is the rotator type frequency-changeable compressor, one is the rotator type constant speed compressor, the air return end of compressor all feeds low-pressure liquid storing tank, has access to one-way valve and exhaust bulb on the parallel pipeline of exhaust end, is connected to the oil separator that is communicated with four-way valve on the pipeline between one-way valve and the exhaust bulb.
2, the linkage structure under the compressor parallel state according to claim 1 is characterized in that being provided with the oil balance tube road between two compressors, the oil balance tube road is arranged on two solenoid valve SV of serial connection mutually
1, SV
2Between, solenoid valve is connected with compressor.
3, the linkage structure under the compressor parallel state according to claim 1 and 2 is characterized in that at the two ends of constant speed compressor and the solenoid valve SV that is connected to constant speed compressor unloading primer liner and is connected in series with this pipeline
3, this solenoid valve is positioned at exhaust side, and constant speed compressor unloading primer liner is positioned at the muffler side.
4, the linkage structure under the compressor parallel state according to claim 1 and 2 is characterized in that being communicated with the pipeline connection between this other end capillaceous and four-way valve and the oil separator with an end of a capillary at the air return end of constant speed compressor.
5, the linkage structure under the compressor parallel state according to claim 4, it is characterized in that pipeline between described oil separator and four-way valve and low-pressure liquid storing tank is by pipeline connection, this section pipeline starts from oil separator, be followed successively by filter screen and capillary tube then, the pipeline connection between capillary tube and four-way valve and low-pressure liquid storing tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117611 CN2702090Y (en) | 2003-11-03 | 2003-11-03 | Connection structure in parallel condition of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320117611 CN2702090Y (en) | 2003-11-03 | 2003-11-03 | Connection structure in parallel condition of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2702090Y true CN2702090Y (en) | 2005-05-25 |
Family
ID=34762334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320117611 Expired - Lifetime CN2702090Y (en) | 2003-11-03 | 2003-11-03 | Connection structure in parallel condition of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2702090Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165478A (en) * | 2014-08-01 | 2014-11-26 | 广东美芝制冷设备有限公司 | Multiple on-line system |
-
2003
- 2003-11-03 CN CN 200320117611 patent/CN2702090Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104165478A (en) * | 2014-08-01 | 2014-11-26 | 广东美芝制冷设备有限公司 | Multiple on-line system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20131103 Granted publication date: 20050525 |