CN103574958A - Multi-split modular system - Google Patents
Multi-split modular system Download PDFInfo
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- CN103574958A CN103574958A CN201210274597.XA CN201210274597A CN103574958A CN 103574958 A CN103574958 A CN 103574958A CN 201210274597 A CN201210274597 A CN 201210274597A CN 103574958 A CN103574958 A CN 103574958A
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- compressor
- modular system
- connected machine
- condenser
- machine modular
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- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000003507 refrigerant Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 7
- 230000009183 running Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 39
- 239000002826 coolant Substances 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 3
- 235000003642 hunger Nutrition 0.000 description 3
- 230000037351 starvation Effects 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
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 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
- 238000012545 processing Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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, and is characterized in that the compressor single-machine system comprises a plurality of compressors which are operated in parallel, the exhaust end of the compressor single-machine system is connected with the first end of the condenser, the second end of the condenser is connected with the first end of a heat exchanger in the indoor unit, the second end of the heat exchanger is connected with the inlet end of the gas-liquid separator, the gas outlet end of the gas-liquid separator is connected with the gas suction end of the compressor single-machine system, and the compressor is. The invention adopts two or more than two double-rotor compressors to replace the scroll compressors to be connected in parallel, and the double-rotor compressors are easy to process and low in cost relative to the scroll compressors, thereby reducing the production cost of a multi-compressor parallel system and improving the product competitiveness.
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 is due to its intrinsic design feature, possess efficiency high, vibrate little, quality is light, in simple in structure, high reliability, also have 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 the Cost Competition advantage of the especially large capacity multi-connected machine of multi-connected machine system when comparing with the central air-conditioning of other type.
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.
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, it is characterized in that, 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, the outlet side of gas-liquid separator connects the suction end of compressor one-of-a-kind system, and compressor is two-spool compressor.
Further, each two-spool compressor comprises that compressor main body and lateral opening hole draw oil exit pipe, Base top contact blast pipe, and oil exit pipe and blast pipe are connected in parallel.
Further, also comprise, oil eliminator, the inlet end of oil eliminator is connected with the exhaust end of compressor.
Further, also comprise, cross valve, four valve ports of cross valve connect respectively the second end of the outlet side of oil eliminator, the entrance point of the first end of condenser, gas-liquid separator and heat exchanger, the exhaust end of compressor one-of-a-kind system is connected the first end of condenser or the second end of heat exchanger with cross valve by oil eliminator, the entrance point of gas-liquid separator connects the second end of heat exchanger or the first end of condenser by cross valve.
Further, the second end of condenser flows out two branch roads, and primary flow branch connects heat exchanger after by subcooler, and secondary flow branch road connects subcooler after electric expansion valve, for the refrigerant of cooling primary flow branch.
Further, the outlet side of gas-liquid separator connects the suction end of compressor through distributor.
Further, the first oil return pipe is drawn in the bottom of oil eliminator, is connected with the suction end of compressor.
Further, the second oil return pipe is drawn in the side of oil eliminator, is connected with the suction end of compressor.
Further, the first end of condenser connects maintenance port.
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, connect equal fuel tap.
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, the relative scroll compression machined of two-spool compressor is simple and easy, cost is low, thereby the production cost that is minimized Multi-compressor parallel system, has improved product competitiveness.
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.
Description of reference numerals:
1, the first two-spool compressor; 2, the 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, maintenance port; 14, unloader; 15, equal fuel tap; D1, D2, D3, D4, check valve; C1, C2, C3, capillary; F1, F2, F3, F4, F5, F6, F7, F8, filter; SV1, SV2, SV3, magnetic valve; P1, P2, high-voltage switch gear; P3, P4, pressure sensor; T1, T2, T3, T4, T5, T6, temperature-sensitive bag
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.
Figure 1 shows that system flow and the annexation figure of first embodiment of the invention.This figure has shown the multiple one-of-a-kind system of 2 two-spool compressor parallel runnings, and the multiple one-of-a-kind system of 2 above two-spool compressor parallel runnings and the modular system that a plurality of multiple one-of-a-kind system composes in parallel all belong to content of the present invention.
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 respectively through check valve D1, after D2, converge, 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 D4, 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 D3 and equal fuel tap 15, 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 14 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 13, detect low pressure etc. for coolant adding, while heating.
As shown in Figure 1, compressor 1 and 2 lateral opening hole are drawn oil exit pipe, be connected in parallel with blast pipe separately respectively, the oil content that exceeds oil exit pipe position respectively through check valve D1 and D2 after does not enter oil eliminator 3 with together with exhaust in blast pipe through filter F1 after F2, and isolated oil is stored.The oil return pipe that oil in oil eliminator 3 is drawn by its bottom flows out, and returns to successively the suction side of compressor 1 and 2 after filter F3, magnetic valve SV1, capillary C1 and distributor 12, forms article one oil return loop; The oil return pipe that oil in oil eliminator 3 is drawn by its side flows out, after filter F4, magnetic valve SV2, capillary C2, magnetic valve SV3 and distributor 12, return to the suction side of compressor 1 and 2, or successively through filter F4, magnetic valve SV2, capillary C2 and all fuel tap 15 flow to the compressor of other one-of-a-kind system in module in parallel with it, form second oil return loop.
The default conditions of described magnetic valve SV1～SV3, for closing, are opened according to oil return demand; Described equal fuel tap 15 is often opened.。
When compressor 1 or 2 oil starvation, open magnetic valve SV1, SV2 and SV3, conducting article one and second oil return loop carry out oil return to compressor 1 or 2 simultaneously; In module in parallel with it, during the compressor oil starvation of other system, open magnetic valve SV2, the oil return pipe that the oil in oil eliminator 3 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 15.
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 production costs, improved product competitiveness; Outside the dual oil return loop forming centered by oil eliminator, the oil exit pipe that draw compressor side makes to enter oil eliminator higher than the oil of outage height, guarantees that compressor oil mass is suitable all the time, and compared with prior art, the reliability of system equalization oil return is higher.
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 (11)
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 described condenser (5), the second end of described condenser (5) connects the first end of the heat exchanger in described 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).
2. multi-connected machine modular system according to claim 1, is characterized in that, two-spool compressor described in each (1,2) comprises that compressor main body and lateral opening hole draw oil exit pipe, Base top contact blast pipe, and described oil exit pipe and described blast pipe are connected in parallel.
3. multi-connected machine modular system according to claim 2, is characterized in that, also comprise, and oil eliminator (3), the inlet end of described oil eliminator (3) is connected with the exhaust end of described compressor.
4. multi-connected machine modular system according to claim 3, it is characterized in that, also comprise, cross valve (4), four valve ports of described cross valve (4) connect respectively the outlet side of described oil eliminator (3), the first end of described condenser (5), the entrance point of described gas-liquid separator (11) and the second end of described heat exchanger, the exhaust end of described compressor one-of-a-kind system is connected the first end of described condenser (5) or the second end of described heat exchanger with described cross valve (4) by described oil eliminator (3), the entrance point of described gas-liquid separator (11) connects the second end of described heat exchanger or the first end of described condenser (5) by described cross valve (5).
5. multi-connected machine modular system according to claim 4, it is characterized in that, the second end of described condenser (5) flows out two branch roads, primary flow branch is by connecting described heat exchanger after subcooler (7), secondary flow branch road connects described subcooler (7) after electric expansion valve (8), for the refrigerant of cooling described primary flow branch.
6. multi-connected machine modular system according to claim 5, is characterized in that, the outlet side of described gas-liquid separator (11) connects the suction end of described compressor through distributor (12).
7. multi-connected machine modular system according to claim 3, is characterized in that, the first oil return pipe is drawn in the bottom of described oil eliminator (3), is connected with the suction end of described compressor.
8. multi-connected machine modular system according to claim 7, is characterized in that, the second oil return pipe is drawn in the side of described oil eliminator (3), is connected with the suction end of described compressor.
9. multi-connected machine modular system according to claim 4, is characterized in that, the first end of described condenser (5) connects maintenance port (13).
10. according to the multi-connected machine modular system described in any one in claim 1 to 9, 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.
11. multi-connected machine modular systems according to claim 10, is characterized in that, between a plurality of described compressor one-of-a-kind systems, connect equal fuel tap (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274597.XA CN103574958A (en) | 2012-08-02 | 2012-08-02 | Multi-split modular system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274597.XA CN103574958A (en) | 2012-08-02 | 2012-08-02 | Multi-split modular system |
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| Publication Number | Publication Date |
|---|---|
| CN103574958A true CN103574958A (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210274597.XA Pending CN103574958A (en) | 2012-08-02 | 2012-08-02 | Multi-split modular system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222383A (en) * | 2015-10-09 | 2016-01-06 | 珠海格力电器股份有限公司 | Heat pump system and control method for heat pump system |
| CN106801942A (en) * | 2017-02-27 | 2017-06-06 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN111811112A (en) * | 2020-07-13 | 2020-10-23 | 南京天加环境科技有限公司 | Intelligent oil return multi-split air conditioner system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242833A (en) * | 2001-02-15 | 2002-08-28 | Toshiba Kyaria Kk | Refrigerating cycle device |
| JP2006170521A (en) * | 2004-12-15 | 2006-06-29 | Toshiba Kyaria Kk | Refrigerator |
| CN202692268U (en) * | 2012-08-02 | 2013-01-23 | 珠海格力电器股份有限公司 | Multi-split modular system |
-
2012
- 2012-08-02 CN CN201210274597.XA patent/CN103574958A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242833A (en) * | 2001-02-15 | 2002-08-28 | Toshiba Kyaria Kk | Refrigerating cycle device |
| JP2006170521A (en) * | 2004-12-15 | 2006-06-29 | Toshiba Kyaria Kk | Refrigerator |
| CN202692268U (en) * | 2012-08-02 | 2013-01-23 | 珠海格力电器股份有限公司 | Multi-split modular system |
Non-Patent Citations (1)
| Title |
|---|
| 蒋宗传，高志刚，郭忠: "双转子空调压缩机的性能研究", 《西安交通大学学报》, vol. 30, no. 5, 31 May 1996 (1996-05-31) * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222383A (en) * | 2015-10-09 | 2016-01-06 | 珠海格力电器股份有限公司 | Heat pump system and control method for heat pump system |
| CN105222383B (en) * | 2015-10-09 | 2018-02-02 | 珠海格力电器股份有限公司 | Heat pump system and control method for heat pump system |
| CN106801942A (en) * | 2017-02-27 | 2017-06-06 | 广东美的暖通设备有限公司 | The control method of air-conditioning system and air-conditioning system |
| CN106801942B (en) * | 2017-02-27 | 2020-11-13 | 广东美的暖通设备有限公司 | Air conditioning system and control method thereof |
| CN111811112A (en) * | 2020-07-13 | 2020-10-23 | 南京天加环境科技有限公司 | Intelligent oil return multi-split air conditioner system |
| CN111811112B (en) * | 2020-07-13 | 2021-11-16 | 南京天加环境科技有限公司 | Intelligent oil return multi-split air conditioner system |
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Application publication date: 20140212 |