CN202158692U - Oil supply mechanism of multi-connected air-conditioning system - Google Patents
Oil supply mechanism of multi-connected air-conditioning system Download PDFInfo
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- CN202158692U CN202158692U CN2011202220489U CN201120222048U CN202158692U CN 202158692 U CN202158692 U CN 202158692U CN 2011202220489 U CN2011202220489 U CN 2011202220489U CN 201120222048 U CN201120222048 U CN 201120222048U CN 202158692 U CN202158692 U CN 202158692U
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Abstract
The utility model provides an oil supply mechanism of a multi-connected air-conditioning system, wherein each compressor is provided with an oil separator; the compressor is communicated with the oil separator through an exhaust pipe; each oil separator is communicated with an oil collector through a throttling capillary; the oil collector is communicated with the suction pipe of each compressor through an oil return pipe; and each compressor is communicated with a system gas-liquid separator through the suction pipe. The oil supply mechanism of the multi-connected air-conditioning system evenly distributes the oil amount of each compressor in the integrated operation process of the system; oil deflection is effectively prevented in the process of even oil distribution; and the system is low in oil pickup rate, simple in structure, low in cost, and safe and reliable.
Description
Technical field
The utility model relates to a kind of technological improvement of air-conditioning unit, and the equal oily fuel feeding control of air-conditioning unit belongs to the air-conditioning production technical field specifically.
Background technology
At present, multi-connected air conditioning system generally adopts a plurality of module parallel forms, and this form combination has good transportation advantage flexibly, has progressively become the main force's product on the business air conditioner market.The core technology that a plurality of module parallel connection uses need to solve is exactly stable between a plurality of compressors in a plurality of modules, reliable all oil tech.
Existing a plurality of module combinations unit is oil all; For the circulation oil mass between balance module; Usually intermodule realizes that through one group of oil balance tube road is set need the refrigerating circulation field Welding of each module be got up, this certainly will increase the installation exercise amount of engineering site; Exist pipe blocking to cause the intermodule oil mass unbalance simultaneously, the hidden danger of compressor abrasion.
A kind of in addition mode is to carry out equal oil through the mode that increases system's injection flow; That is: each compressor assembly is discharged to unnecessary oil mass in the middle of the system; Again distribute, so not only increased system's injection flow, increase cost; And system's rate that oils is higher, obviously influences the heat exchanger heat exchange property.
And existing equal EFM Electronic Fuel Management all is that a plurality of module combinations units have occurred after the oily partially phenomenon, could be through the adjustment of control system to realize equal oil.Therefore, in the process of entire system operation, through reasonable structural design, the oil mass of each compressor of uniform distribution, effectively the appearance of the oily partially phenomenon of prevention is the technical problem that needs to be resolved hurrily in equal oil.
The utility model content
Deficiency to prior art; The utility model technical problem to be solved is a kind of multi-connected air conditioning system oil supply mechanism to be provided, in the process of entire system operation; The oil mass of each compressor of uniform distribution; The effectively appearance of the oily partially phenomenon of prevention in equal oil, and system oils that rate is low, simple in structure, cost is low, safe and reliable.
For solving the problems of the technologies described above; The technical scheme that the utility model is taked is that multi-connected air conditioning system oil supply mechanism, every compressor all dispose a table oil separator; Compressor is communicated with oil eliminator through blast pipe; Its each oil eliminator all is communicated with oil catcher through throttle capillary tube, and oil catcher is through the air intake duct of each compressor of oil return pipe connection, and each compressor is all through air intake duct connected system gas-liquid separator.
Above-mentioned multi-connected air conditioning system oil supply mechanism, its oil catcher are the tubular structure of set inside cavity, and the cavity top is provided with hydraulic fluid port, and the cavity below is provided with down hydraulic fluid port.
Above-mentioned multi-connected air conditioning system oil supply mechanism, its each oil eliminator all are communicated with the last hydraulic fluid port of oil catcher through throttle capillary tube, each oil return pipe all is communicated with the following hydraulic fluid port of oil catcher.
Above-mentioned multi-connected air conditioning system oil supply mechanism, the oil return point position that its each oil return pipe is communicated with air intake duct is lower than the air entry position that compressor is connected with air intake duct.
The utlity model has following advantage and useful technique effect:
1, the technical scheme of the utility model is that every press is joined a table oil separator; Oil catcher is set simultaneously; Oil eliminator circulates after the oil of returning mixes through oil catcher earlier, returns each compressor again, realizes the oil mass uniform distribution; Effectively prevent inclined to one side oil, all oil control of more effective realization simultaneously;
2, when unit integral body stops, the oil in each oil eliminator flows back to get in the system gas liquid/gas separator behind the compressor through throttle capillary tube and stores, also can be through system gas liquid/gas separator mean allocation to each compressor when starting once more.
3, oil eliminator inner and and compressor between gases at high pressure also can return in the compressor through throttle capillary tube; Realize the rapid balance of compressor high-low pressure; Guarantee that compressor does not have pressure reduction when starting once more, reduce compressor start moment, ensure the compressor reliability service.
4, the oil return point position of each oil return pipe connection air intake duct is lower than the air entry position that compressor is connected with air intake duct; When making compressor shutdown; The liquid of internal system all is back in the gas-liquid separator; Inside does not have liquid when making compressor start, can effectively prolong the service life and the operating efficiency of compressor, and operation is more safe and reliable simultaneously.
5, the entire system rate that oils is low, saves production cost energy-conserving and environment-protective.
Description of drawings
Fig. 1 is the structural representation of the utility model;
In the above-mentioned accompanying drawing, 1-compressor, 2-oil eliminator, 3-blast pipe, 4-throttle capillary tube, 5-oil catcher, 6-oil return pipe, 7-air intake duct, 8-system gas liquid/gas separator, the last hydraulic fluid port of 9-, hydraulic fluid port under the 10-, 11-oil return point, 12-air entry.
The specific embodiment
As shown in the figure; The every compressor 1 of the multi-connected air conditioning system oil supply mechanism of present embodiment all disposes a table oil separator 2; Compressor 1 is communicated with oil eliminator 2 through blast pipe 3, and oil catcher 5 is the tubular structure of set inside cavity, and the cavity top is provided with hydraulic fluid port 9; The cavity below is provided with down hydraulic fluid port 10; Each oil eliminator 2 all is communicated with the last hydraulic fluid port 9 of oil catcher 5 through throttle capillary tube 4, the following hydraulic fluid port 10 of oil catcher 5 is through the air intake duct 7 of oil return pipe 6 each compressors 1 of connection, and each compressor 1 is all through air intake duct 7 connected system gas-liquid separators 8.The oil return that each oil return pipe 6 is communicated with air intake duct 7 is put 11 positions and is lower than the air entry 12 that compressor 1 is connected with air intake duct 7.
When unit is worked, after the oil elder generation that oil eliminator 2 is returned is mixed through oil catcher 5, return each compressor 1 again, make effectively all oil of the many and oily few part of oil; The gas and oil mixture that compressor 1 is discharged separates into refrigerant gas and refrigerator oil in each oil eliminator 2; Refrigerant gas is discharged through oil eliminator 2 blast pipes 3; Refrigerator oil is stored in oil eliminator 2 bottoms; Return other compressors through throttle capillary tube 4, make each compressor 1 oil mass balance in the same module.
When unit quits work; Oil in the oil eliminator 2 flows back to compressor 1 air intake duct 7 through throttle capillary tube 4 and gets into storage in the gas-liquid separator 8; Also can be when start next time through gas-liquid separator 8 mean allocation to each compressor 1, simultaneously, oil eliminator 2 inner and and compressor 1 between gases at high pressure also can return compressor suction duct 7 through throttle capillary tube 4; Realize compressor 1 high-low pressure balance; Guarantee that next compressor 1 does not have pressure reduction when starting and starts, reduce the staring torque of compressor 1, ensure reliability service.
The above; It only is preferred embodiment to the utility model; Be not to be that the utility model is done other forms of restriction, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model scheme content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of the utility model according to the technical spirit of the utility model.
Claims (4)
1. multi-connected air conditioning system oil supply mechanism; Every compressor all disposes a table oil separator; Compressor is communicated with oil eliminator through blast pipe; It is characterized in that: said each oil eliminator all is communicated with oil catcher through throttle capillary tube, and oil catcher is through the air intake duct of each compressor of oil return pipe connection, and each compressor is all through air intake duct connected system gas-liquid separator.
2. multi-connected air conditioning system oil supply mechanism according to claim 1 is characterized in that: said oil catcher is the tubular structure of set inside cavity, and the cavity top is provided with hydraulic fluid port, and the cavity below is provided with down hydraulic fluid port.
3. multi-connected air conditioning system oil supply mechanism according to claim 2 is characterized in that: said each oil eliminator all is communicated with the last hydraulic fluid port of oil catcher through throttle capillary tube, each oil return pipe all is communicated with the following hydraulic fluid port of oil catcher.
4. according to claim 1,2 or 3 described multi-connected air conditioning system oil supply mechanisms, it is characterized in that: the oil return point position that said each oil return pipe is communicated with air intake duct is lower than the air entry position that compressor is connected with air intake duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202220489U CN202158692U (en) | 2011-06-28 | 2011-06-28 | Oil supply mechanism of multi-connected air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202220489U CN202158692U (en) | 2011-06-28 | 2011-06-28 | Oil supply mechanism of multi-connected air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158692U true CN202158692U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202220489U Expired - Lifetime CN202158692U (en) | 2011-06-28 | 2011-06-28 | Oil supply mechanism of multi-connected air-conditioning system |
Country Status (1)
| Country | Link |
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| CN (1) | CN202158692U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853585A (en) * | 2011-06-28 | 2013-01-02 | 青岛海信日立空调系统有限公司 | Oil supply mechanism of multi-split air conditioning system |
| CN103968608A (en) * | 2013-01-30 | 2014-08-06 | 同方人工环境有限公司 | Air source heat pump unit with parallel double compressors |
| CN104048453A (en) * | 2013-03-12 | 2014-09-17 | 珠海格力电器股份有限公司 | Oil-equalizing control method for compressor system and multi-compressor parallel system |
| CN106402052A (en) * | 2016-11-21 | 2017-02-15 | 天津尚吉液压设备有限公司 | Gas-liquid separation oil supply system |
-
2011
- 2011-06-28 CN CN2011202220489U patent/CN202158692U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102853585A (en) * | 2011-06-28 | 2013-01-02 | 青岛海信日立空调系统有限公司 | Oil supply mechanism of multi-split air conditioning system |
| CN103968608A (en) * | 2013-01-30 | 2014-08-06 | 同方人工环境有限公司 | Air source heat pump unit with parallel double compressors |
| CN104048453A (en) * | 2013-03-12 | 2014-09-17 | 珠海格力电器股份有限公司 | Oil-equalizing control method for compressor system and multi-compressor parallel system |
| CN104048453B (en) * | 2013-03-12 | 2016-01-06 | 珠海格力电器股份有限公司 | The equal oily control method of compressor assembly and Multi-compressor parallel system |
| CN106402052A (en) * | 2016-11-21 | 2017-02-15 | 天津尚吉液压设备有限公司 | Gas-liquid separation oil supply system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120307 |