CN103574957A - Multi-split modular system - Google Patents
Multi-split modular system Download PDFInfo
- Publication number
- CN103574957A CN103574957A CN201210274439.4A CN201210274439A CN103574957A CN 103574957 A CN103574957 A CN 103574957A CN 201210274439 A CN201210274439 A CN 201210274439A CN 103574957 A CN103574957 A CN 103574957A
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- oil
- compressor
- oil return
- modular system
- connected machine
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- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000000446 fuel Substances 0.000 claims description 7
- 230000009183 running Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000009977 dual effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 69
- 239000003507 refrigerant Substances 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 235000003642 hunger Nutrition 0.000 description 5
- 230000037351 starvation Effects 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000010725 compressor oil Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a multi-split modular system, which comprises a compressor single-machine system, an indoor unit, a condenser and a gas-liquid separator, wherein the compressor single-machine system comprises a plurality of compressors which are operated in parallel; the compressor is a dual rotor compressor; the compressor single-machine system comprises an oil storage device, wherein the oil storage device is used for storing oil discharged from the compressor, the oil storage device is provided with an oil inlet connected with an oil discharge pipe led out from the side face of the compressor, the side face of the oil storage device is provided with a first oil outlet connected with one end of a first oil return pipe, and the other end of the first oil return pipe is connected with a suction end of the compressor. The invention adopts two or more than two double-rotor compressors to replace the scroll compressors to be connected in parallel, can reduce the production cost of the system, and is provided with an oil return loop formed by an oil reservoir and an oil return pipeline to ensure the balanced oil return reliability of the compressors.
Description
Technical field
The present invention relates to the multi-connected machine technical field of air-conditioning, in particular to a kind of multi-connected machine modular system.
Background technology
Multi-connected machine system is by modes such as Multi-compressor parallel and modularizations, makes the advantages such as its capacity independent assortment, system are simple, flexible design, simple installation particularly outstanding, at field of central air-conditioning, obtains application more and more widely.
At present, the multi-connected machine system of Multi-compressor parallel adopts screw compressor more.Screw compressor possess efficiency high, vibrate little, quality is light, when simple in structure, high reliability also due to its intrinsic design feature, there is the shortcoming that difficulty of processing is large, manufacturing cost is high.Adopt screw compressor as the core component of multi-connected machine system, reduced to a certain extent Cost Competition advantage when the especially large capacity multi-connected machine of multi-connected machine system is compared with the central air-conditioning of other type.
In addition, VRF Air Conditioning System is because the features such as pipeline is long, drop is large and elbow is many cause compressor oil return difficulty, and oil return problem becomes the critical problem of its reliability service.
Summary of the invention
The present invention aims to provide a kind of multi-connected machine modular system, to solve the higher problem of production cost of the multi-connected machine system of using screw compressor in prior art.Further, solve the problem of multi-connected machine system compresses machine oil return difficulty.
To achieve these goals, the invention provides a kind of multi-connected machine modular system, comprise compressor one-of-a-kind system, indoor set, condenser and gas-liquid separator, compressor one-of-a-kind system comprises the multiple compressors of parallel running, the exhaust end of compressor one-of-a-kind system connects the first end of condenser, the second end of condenser connects the first end of the heat exchanger in indoor set, the second end of heat exchanger connects the entrance point of gas-liquid separator, and the outlet side of gas-liquid separator connects the suction end of compressor one-of-a-kind system; Compressor is two-spool compressor; Compressor one-of-a-kind system comprises oil conservator, for storing the oil of discharging from compressor, oil conservator arranges the oil exit pipe that oil-in draws with compressor side and is connected, oil conservator side arranges one end that the first oil-out connects the first oil return pipe, and the other end of the first oil return pipe connects the suction end of compressor.
Further, also comprise, oil eliminator, the inlet end of oil eliminator is connected with the exhaust end of compressor, and oil eliminator oil return pipe is drawn in oil eliminator bottom, and the other end of oil eliminator oil return pipe connects the suction end of compressor.
Further, oil conservator bottom arranges one end that the second oil-out connects the second oil return pipe, and the other end of the second oil return pipe connects the suction end of compressor.
Further, the exhaust end of compressor arranges exhaust temperature-sensitive bag, and equal oily temperature-sensitive bag is set on oil exit pipe.
Further, the oil return pipe of oil eliminator is by filter, magnetic valve and capillary.
Further, oil exit pipe is by filter, magnetic valve and capillary.
Further, the first oil return pipe is by check valve, filter and magnetic valve.
Further, the second oil return pipe is by filter and magnetic valve.
Further, multi-connected machine modular system comprises a plurality of compressor one-of-a-kind systems of parallel running.
Further, between a plurality of compressor one-of-a-kind systems, by equal fuel tap pipeline, connect.
The multi-connected machine modular system of Multi-compressor parallel provided by the invention, adopts two or more two-spool compressors to replace screw compressor in parallel, can reduce system production cost, has improved product competitiveness.Further, the present invention is except oil eliminator, and the oil return loop that the oil conservator of setting and return line form, guarantees the balanced oil return reliability of compressor.
Accompanying drawing explanation
The Figure of description that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the annexation schematic diagram of an embodiment of multi-connected machine system of the present invention.
The specific embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
The multi-connected machine modular system of Multi-compressor parallel provided by the invention, its unit adopts two or more two-spool compressors in parallel, in parallel between unit and unit, composition module unit; Except oil eliminator, special oil conservator and return line are set, form three rebalancing method back oil ring roads, guarantee the balanced oil return reliability of compressor.
Figure 1 shows that the system flow chart of first embodiment of the invention.This figure has shown the multiple one-of-a-kind system of two two-spool compressor parallel runnings.The multiple one-of-a-kind system of two above two-spool compressor parallel runnings and the modular system that multi-and single-machine system composes in parallel all belong to content of the present invention, and embodiment is identical with the first embodiment shown in Fig. 1.
The first two-spool compressor 1 shown in Fig. 1 and the second two-spool compressor 2 are arranged in parallel, during refrigeration, from two compressor blast pipes high-temperature exhaust air out, after check valve D1 and D2, converge respectively, enter oil eliminator 3, the gaseous coolant being separated enters condenser 5 and is condensed into liquid refrigerants after cross valve 4, this liquid refrigerants is divided into main flow and secondary flow two-way after check valve D5, secondary flow refrigerant enters subcooler 7 and is used for cooling main flow refrigerant after electric expansion valve 8 throttlings, main flow refrigerant enters subcooler 7 by excessively cold, after liquid valve 9 enters indoor set reducing pressure by regulating flow, participate in heat exchange again and evaporate, gaseous coolant after evaporation is got back to gas-liquid separator 11 successively after air valve 10 and cross valve 4, a small amount of gaseous coolant wherein flows to other one-of-a-kind system in module in parallel with it through check valve D4 and equal fuel tap 16, play balance low pressure, the suction side that a large amount of gaseous coolants are got back to respectively compressor 1 and compressor 2 after distributor 12, complete refrigerant circulation.While heating, cross valve 4 commutations, electric expansion valve 6 is opened, and unloader 15 moves when inlet pressure is too high, and pressure release after opening, works to prevent fluid-tight.Condenser 5 porch are provided with maintenance port 14, detect low pressure etc. for coolant adding, while heating.
The high-temperature exhaust air of the first two-spool compressor 1 and the second two-spool compressor 2 enters respectively oil eliminator 3 after check valve D1 and D2, the oil return pipe that the oil being separated is drawn by oil eliminator 3 bottoms flows out, after filter F6, magnetic valve SV6, capillary C3 and distributor 12, return to successively the suction side of compressor 1 and 2, form article one oil return loop.The oil exit pipe that in the first two-spool compressor 1 and the second two-spool compressor 2, oil more than needed is drawn by compressor side flows out, pass through successively filter F 1(F2), magnetic valve SV1(SV2) and capillary C1(C2), entering oil conservator 13 is stored, the oil return pipe that oil in oil conservator 13 is drawn by its side flows out, pass through successively check valve D3, filter F 3, magnetic valve SV3, after SV4 and distributor 12, return to the suction side of compressor 1 and 2, or pass through successively check valve D3, filter F 3, magnetic valve SV3 and all fuel tap 16 flow to the compressor of other one-of-a-kind system in module in parallel with it, form second oil return loop, the oil return pipe that oil in oil conservator 13 is drawn by its bottom flows out, and returns to successively the suction side of compressor 1 and 2 after filter F 5, magnetic valve SV5 and distributor 12, forms the 3rd oil return loop.
The default conditions of described magnetic valve SV1～SV6, for closing, are opened according to oil return demand; Described equal fuel tap 16 is often opened.
Exhaust temperature-sensitive bag T1(T2 is set) on the exhaust end pipeline of described compressor, the oil exit pipe end of described compressor arranges equal oily temperature-sensitive bag T3(T4), according to the exhaust temperature-sensitive bag T1(T2 that detects) and equal oily temperature-sensitive bag T3(T4) between the temperature difference judge compressor 1(2) oil starvation whether.When compressor 1(or compressor 2) during oil starvation, open magnetic valve SV6, SV1(or SV2), SV3 and SV4, conducting article one and second oil return loop carry out oil return; As compressor 1(2) oil starvation is when serious, except conducting article one and second oil return loop, opens magnetic valve SV5 simultaneously, and the 3rd oil return loop of conducting, accelerates oil return; In module in parallel with it, during the compressor oil starvation of other system, open magnetic valve SV3, the oil return pipe that the oil in oil conservator 13 is drawn by its side, flows to the compressor in oil starvation operating condition of other system in module in parallel with it through equal fuel taps 16.
From above description, can find out, the above embodiments of the present invention have realized following technique effect: the multi-connected machine modular system of Multi-compressor parallel provided by the invention, adopt two or more two-spool compressors to replace screw compressor in parallel, greatly reduce system production cost, improved product competitiveness; Except oil eliminator, system arranges special oil conservator, forms three rebalancing method back oil ring roads, balanced oil return demand when the long tube connector of fully assurance system is installed, and compared with prior art, reliability is higher.
Description of reference numerals shown in figure:
1, the first two-spool compressor, the 2, second two-spool compressor, 3, oil eliminator, 4, cross valve, 5, condenser, 6,8, electric expansion valve, 7, subcooler, 9, liquid valve, 10, air valve, 11, gas-liquid separator, 12, distributor, 13, middle pressure oil conservator, 14, maintenance port, 15, unloader, 16, equal fuel tap, D1～D5, check valve, C1～C4, capillary, F1～F9, filter, SV1～SV6, magnetic valve, P1～P2, high-voltage switch gear, P3～P4, pressure sensor, T1～T8, temperature-sensitive bag.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a multi-connected machine modular system, comprise compressor one-of-a-kind system, indoor set, condenser (5) and gas-liquid separator (11), it is characterized in that, described compressor one-of-a-kind system comprises the multiple compressors of parallel running, the exhaust end of described compressor one-of-a-kind system connects the first end of condenser (5), the second end of described condenser (5) connects the first end of the heat exchanger in indoor set, the second end of described heat exchanger connects the entrance point of gas-liquid separator (11), the outlet side of described gas-liquid separator (11) connects the suction end of described compressor one-of-a-kind system, described compressor is two-spool compressor (1,2), described compressor one-of-a-kind system comprises oil conservator (13), for storing the oil of discharging from described compressor, described oil conservator (13) arranges the oil exit pipe that oil-in draws with described compressor side and is connected, described oil conservator (13) side arranges one end that the first oil-out connects the first oil return pipe, and the other end of described the first oil return pipe connects the suction end of described compressor.
2. multi-connected machine modular system according to claim 1, it is characterized in that, also comprise, oil eliminator (3), the inlet end of described oil eliminator (3) is connected with the exhaust end of described compressor, oil eliminator oil return pipe is drawn in described oil eliminator (3) bottom, and the other end of described oil eliminator oil return pipe connects the suction end of described compressor.
3. multi-connected machine modular system according to claim 2, is characterized in that, described oil conservator (13) bottom arranges one end that the second oil-out connects the second oil return pipe, and the other end of described the second oil return pipe connects the suction end of described compressor.
4. multi-connected machine modular system according to claim 3, is characterized in that, the exhaust end of described compressor arranges exhaust temperature-sensitive bag, and equal oily temperature-sensitive bag is set on described oil exit pipe.
5. multi-connected machine modular system according to claim 2, is characterized in that, the oil return pipe of described oil eliminator is by filter (F6), magnetic valve (SV6) and capillary (C3).
6. multi-connected machine modular system according to claim 1, is characterized in that, described oil exit pipe is by filter (F1, F2), magnetic valve (SV1, SV2) and capillary (C1, C2).
7. multi-connected machine modular system according to claim 1, is characterized in that, described the first oil return pipe is by check valve (D3), filter (F3) and magnetic valve (SV3, SV4).
8. multi-connected machine modular system according to claim 3, is characterized in that, described the second oil return pipe is by filter (F5) and magnetic valve (SV5).
9. according to the multi-connected machine modular system described in any one in claim 1 to 8, it is characterized in that, described multi-connected machine modular system comprises a plurality of described compressor one-of-a-kind system of parallel running.
10. multi-connected machine modular system according to claim 9, is characterized in that, between a plurality of described compression one-of-a-kind systems, by equal fuel tap pipeline, connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274439.4A CN103574957A (en) | 2012-08-02 | 2012-08-02 | Multi-split modular system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274439.4A CN103574957A (en) | 2012-08-02 | 2012-08-02 | Multi-split modular system |
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| Publication Number | Publication Date |
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| CN103574957A true CN103574957A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210274439.4A Pending CN103574957A (en) | 2012-08-02 | 2012-08-02 | Multi-split modular system |
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| Country | Link |
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| CN (1) | CN103574957A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501437A (en) * | 2014-11-25 | 2015-04-08 | 珠海格力电器股份有限公司 | Heat pump system and method for operating the same |
| CN105299956A (en) * | 2015-10-16 | 2016-02-03 | 珠海格力电器股份有限公司 | Compressor oil return control device and method and air conditioner with device |
| WO2016179884A1 (en) * | 2015-01-16 | 2016-11-17 | 北京恒通绿建节能科技有限公司 | Variable-refrigerant-flow radiant air-conditioning system |
| CN106440564A (en) * | 2016-11-11 | 2017-02-22 | 珠海格力电器股份有限公司 | integrated block type pipeline device and throttling device |
| CN106482391A (en) * | 2016-11-02 | 2017-03-08 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning equipment and its reducing pressure by regulating flow control device |
| CN111256379A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Refrigerating device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501437A (en) * | 2014-11-25 | 2015-04-08 | 珠海格力电器股份有限公司 | Heat pump system and method for operating the same |
| WO2016179884A1 (en) * | 2015-01-16 | 2016-11-17 | 北京恒通绿建节能科技有限公司 | Variable-refrigerant-flow radiant air-conditioning system |
| CN105299956A (en) * | 2015-10-16 | 2016-02-03 | 珠海格力电器股份有限公司 | Compressor oil return control device and method and air conditioner with device |
| CN106482391A (en) * | 2016-11-02 | 2017-03-08 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning equipment and its reducing pressure by regulating flow control device |
| CN106482391B (en) * | 2016-11-02 | 2019-05-21 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning equipment and its reducing pressure by regulating flow control device |
| CN106440564A (en) * | 2016-11-11 | 2017-02-22 | 珠海格力电器股份有限公司 | integrated block type pipeline device and throttling device |
| CN106440564B (en) * | 2016-11-11 | 2022-04-15 | 珠海格力电器股份有限公司 | Integrated block piping device and throttling device |
| CN111256379A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Refrigerating device |
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Application publication date: 20140212 |