CN202709314U - Multi-online modular system - Google Patents

Multi-online modular system Download PDF

Info

Publication number
CN202709314U
CN202709314U CN 201220382697 CN201220382697U CN202709314U CN 202709314 U CN202709314 U CN 202709314U CN 201220382697 CN201220382697 CN 201220382697 CN 201220382697 U CN201220382697 U CN 201220382697U CN 202709314 U CN202709314 U CN 202709314U
Authority
CN
China
Prior art keywords
oil
compressor
compressors
connects
oil return
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.)
Active
Application number
CN 201220382697
Other languages
Chinese (zh)
Inventor
沈军
胡强
王永立
邹云霞
王少山
王瑞强
陈振松
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 CN 201220382697 priority Critical patent/CN202709314U/en
Application granted granted Critical
Publication of CN202709314U publication Critical patent/CN202709314U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model provides a multi-online modular system which comprises a compressor stand-alone system, an indoor machine, a condenser and a gas-liquid separator. The compressor stand-alone system comprises a plurality of compressors which are operated in parallel. A venting end of the compressor stand-alone system is connected with the condenser, and the condenser is connected with a heat exchanger in the indoor machine. The heat exchanger is connected with the gas-liquid separator which is connected with a suction end of the compressor stand-alone system. The compressors are birotor compressors. The compressor stand-alone system comprises an oil storage machine which is used for storing oil which is discharged from the compressors. Oil inlets which are arranged on the oil storage machine are connected with oil discharging tubes which are drawn from lateral faces of the compressors. Oil outlets which are arranged on the lateral face of the oil storage machine are connected with one ends of oil return tubes, and the other ends of the oil return tubes are connected with suction ends of the compressors. Two or more than two birotor compressors are adopted to replace scroll compressors which are in parallel, so that production cost of the system can be reduced. An oil return loop circuit which is formed by the oil storage machine and the oil return pipeline can guarantee reliability of balanced oil returning of the compressors.

Description

The multi-connected machine modular system
Technical field
The utility model relates to the multi-connected machine technical field of air-conditioning, in particular to a kind of multi-connected machine modular system.
Background technology
The multi-connected machine system is by modes such as Multi-compressor parallel and modularizations, so that the advantages such as its capacity independent assortment, system are simple, flexible design, simple installation are particularly outstanding, obtains to use more and more widely at field of central air-conditioning.
At present, the multi-connected machine system of Multi-compressor parallel adopts screw compressor more.Screw compressor possesses the efficient height, vibration is little, quality is light, when simple in structure, high reliability also because its intrinsic design feature has 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 when the especially large capacity multi-connected machine of multi-connected machine system compares with the central air-conditioning of other type.
In addition, VRF Air Conditioning System is because pipeline is long, drop reaches greatly the characteristics such as elbow is many and causes compressor oil return difficulty, and the oil return problem becomes the critical problem of its reliability service.
The utility model content
The utility model aims to provide a kind of multi-connected machine modular system, to solve the higher problem of production cost of using the multi-connected machine system of screw compressor in the prior art.Further, solve multi-connected machine system compresses machine oil return hard problem.
To achieve these goals, the utility model provides a kind of multi-connected machine modular system, comprise compressor one-of-a-kind system, indoor set, condenser and gas-liquid separator, the 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 the 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; The compressor one-of-a-kind system comprises oil conservator, be used for storing the oil of discharging from compressor, oil conservator arranges oil-in and links to each other with the oil exit pipe that draw the compressor side, the oil conservator side arranges the 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 the oil eliminator oil return pipe is drawn in the oil eliminator bottom, and the other end of oil eliminator oil return pipe connects the suction end of compressor.
Further, the oil conservator bottom arranges the 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 the 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, the multi-connected machine modular system comprises a plurality of compressor one-of-a-kind systems of parallel running.
Further, connect by equal fuel tap pipeline between a plurality of compressor one-of-a-kind systems.
The multi-connected machine modular system of the Multi-compressor parallel that the utility model provides adopts two or more two-spool compressors to replace screw compressor in parallel, can reduce system's production cost, has improved product competitiveness.Further, the utility model is except oil eliminator, and the oil return loop that the oil conservator of setting and return line consist of guarantees the balanced oil return reliability of compressor.
Description of drawings
The Figure of description that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the annexation schematic diagram of an embodiment of multi-connected machine of the present utility model system.
The specific embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
The multi-connected machine modular system of the Multi-compressor parallel that the utility model provides, its unit adopt two or more two-spool compressors in parallel, and be in parallel between unit and the unit, the composition module unit; Except oil eliminator, special oil conservator and return line are set, consist of three rebalancing method back oil ring roads, guarantee the balanced oil return reliability of compressor.
Figure 1 shows that the system flow chart of the utility model the first embodiment.This figure has showed the multiple one-of-a-kind system of two two-spool compressor parallel runnings.The multiple one-of-a-kind system of the two-spool compressor parallel running more than two and the modular system that multi-and single-machine system composes in parallel all belong to content of the present utility model, and embodiment is identical with the first embodiment shown in Figure 1.
The first two-spool compressor 1 and the second two-spool compressor 2 shown in Figure 1 are arranged in parallel, during refrigeration, behind check valve D1 and D2, converge respectively from two compressor blast pipes high-temperature exhaust air out, enter oil eliminator 3, the gaseous coolant that is separated enters condenser 5 and is condensed into liquid refrigerants behind cross valve 4, be divided into main flow and secondary flow two-way behind this liquid refrigerants process check valve D5, the secondary flow refrigerant enters subcooler 7 and is used for cooling off the main flow refrigerant after electric expansion valve 8 throttlings, the main flow refrigerant enters subcooler 7 by excessively cold, after liquid valve 9 enters the indoor set reducing pressure by regulating flow, participate in again heat exchange and evaporate, gaseous coolant after the evaporation is got back to gas-liquid separator 11 successively behind air valve 10 and cross valve 4, a small amount of gaseous coolant wherein flows to other one-of-a-kind system in the module in parallel with it through check valve D4 and equal fuel tap 16, play balance low pressure, a large amount of gaseous coolants are got back to respectively compressor 1 and compressor 2 behind distributor 12 suction side is finished refrigerant circulation.When 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, are used for coolant adding, detect low pressure etc. when 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 behind check valve D1 and D2, the oil return pipe that the oil that is separated is drawn by oil eliminator 3 bottoms flows out, through returning the suction side of compressor 1 and 2 behind filter F6, magnetic valve SV6, capillary C3 and the distributor 12, consist of article one oil return loop successively.The oil exit pipe that oil more than needed is drawn by the compressor side in the first two-spool compressor 1 and the second two-spool compressor 2 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 the oil conservator 13 is drawn by its side flows out, pass through successively check valve D3, filter F 3, magnetic valve SV3, return the suction side of compressor 1 and 2 behind SV4 and the distributor 12, or pass through successively check valve D3, filter F 3, magnetic valve SV3 and equal fuel tap 16 flow to the compressor of other one-of-a-kind system in the module in parallel with it, consist of second oil return loop; The oil return pipe that oil in the oil conservator 13 is drawn by its bottom flows out, and through returning the suction side of compressor 1 and 2 behind filter F 5, magnetic valve SV5 and the distributor 12, consists of the 3rd oil return loop successively.
The default conditions of described magnetic valve SV1~SV6 are opened according to the oil return demand for closing; 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) when oil starvation is serious, except conducting article one and second oil return loop, open simultaneously magnetic valve SV5, the 3rd oil return loop of conducting accelerates oil return; When the compressor oil starvation of other system in the module in parallel with it, open magnetic valve SV3, the oil return pipe that the oil in the oil conservator 13 are drawn by its side flows to the compressor that is in the oil starvation operating condition of other system in the module in parallel with it through equal fuel taps 16.
From above description, can find out, the utility model the above embodiments have realized following technique effect: the multi-connected machine modular system of the Multi-compressor parallel that the utility model provides, adopt two or more two-spool compressors to replace screw compressor in parallel, greatly reduce system's production cost, improved product competitiveness; Except oil eliminator, system arranges special oil conservator, consists of three rebalancing method back oil ring roads, the 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 the 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 above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (10)

1. multi-connected machine modular system, comprise the 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 the indoor set, the second end of described heat exchanger connects the entrance point of gas-liquid separator (11), and 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), be used for storing the oil of discharging from described compressor, described oil conservator (13) arranges oil-in and links to each other with the oil exit pipe that draw described compressor side, described oil conservator (13) side arranges the 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, the 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 the 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 the 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. the described multi-connected machine modular system of any one in 8 according to claim 1 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, connects by equal fuel tap pipeline between a plurality of described compression one-of-a-kind systems.
CN 201220382697 2012-08-02 2012-08-02 Multi-online modular system Active CN202709314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220382697 CN202709314U (en) 2012-08-02 2012-08-02 Multi-online modular system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220382697 CN202709314U (en) 2012-08-02 2012-08-02 Multi-online modular system

Publications (1)

Publication Number Publication Date
CN202709314U true CN202709314U (en) 2013-01-30

Family

ID=47589610

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220382697 Active CN202709314U (en) 2012-08-02 2012-08-02 Multi-online modular system

Country Status (1)

Country Link
CN (1) CN202709314U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103574957A (en) * 2012-08-02 2014-02-12 珠海格力电器股份有限公司 Multiplex modular system
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103574957A (en) * 2012-08-02 2014-02-12 珠海格力电器股份有限公司 Multiplex modular system
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

Similar Documents

Publication Publication Date Title
CN202692268U (en) Multi-connected machine modularization system
CN103574957A (en) Multiplex modular system
CN203550042U (en) Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine
CN103776119A (en) Multi-split air conditioner heat pump system, refrigeration control method thereof and heating control method thereof
CN203550068U (en) Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine
CN102809255B (en) Air conditioner defrosting system and defrosting method
CN107449173B (en) A kind of control method of domestic multi-connection formula frequency changer oil return control system
CN103115452B (en) A kind of multi-compressor heavy duty detergent unit
CN203375758U (en) Refrigerating cycle system
CN105849498A (en) Heat exchanger and air conditioning device
CN103954067A (en) Refrigerating device
CN202709314U (en) Multi-online modular system
CN102466376A (en) Screw-type refrigerating system and control method thereof
CN202792279U (en) Multiple on-line air-conditioning system
CN204329177U (en) Carry the indoor set of supercooling apparatus
CN201122034Y (en) Air conditioner circulating load control device and multi-gang air conditioner circulating load control device
CN103574958A (en) Multiplex modular system
CN101451781A (en) Air conditioner circulation control device and multi-connection air conditioner circulation control device
CN103851830B (en) Oil balancing unit and refrigeration plant
CN104315744A (en) Air source heat pump system with parallel flow heat exchanger
CN104896808A (en) Multiple-online system
CN201935482U (en) Multi-connected air conditioning unit and oil circuit system thereof
CN203586612U (en) Multi-online system and outdoor unit module thereof
CN109737621B (en) Self-cascade refrigeration system
CN203083190U (en) Multi-compressor efficient set

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant