CN202101481U

CN202101481U - Liquid accumulator of compressor

Info

Publication number: CN202101481U
Application number: CN201120136701XU
Authority: CN
Inventors: 曲阳
Original assignee: Guangdong Meizhi Compressor Co Ltd
Current assignee: Guangdong Meizhi Compressor Co Ltd
Priority date: 2011-05-03
Filing date: 2011-05-03
Publication date: 2012-01-04
Anticipated expiration: 2021-05-03

Abstract

A liquid accumulator of a compressor comprises a shell, an inlet pipe and a gas-liquid separation pipe are arranged on the shell, a first oil return hole and a second oil return hole are arranged at one end of the gas-liquid separation pipe, which extends into the shell, and the first oil return hole is arranged above the second oil return hole. The height difference between the first oil return hole and the second oil return hole is more than 5mm. The distance of the second oil return hole away from the bottom of the shell is larger than 0mm and smaller than 30mm. The aperture of an open pore of the first oil return hole is more than or equal to two times that of the open pore of the second oil return hole. A filtering device is arranged in the shell. The liquid accumulator of the compressor has the advantages of being simple and reasonable in structure, flexible to operate, low in manufacturing cost, and capable of meeting oil return requirement and ensuring the reliable running of the compressor.

Description

The reservoir of compressor

Technical field

The utility model relates to the reservoir of a kind of reservoir, particularly a kind of compressor.

Background technology

The effect of reservoir is storage refrigerator oil and liquid refrigerant, and generally, the density of liquid refrigerant is greater than the density of refrigerator oil, and during compressor operation, the most of liquid that is in the bottom of reservoir is liquid cold-producing medium.

The reservoir of existing compressor sees shown in the accompanying drawing 1 that comprise housing 11, refrigerant inlet pipe 12, filter 13 and gas-liquid separator tube 14, gas-liquid separation pipe 14 is provided with single spill port 8.The short transverse of the gas-liquid separation pipe that reservoir is inner receives the restriction of the diameter of reservoir, and the height of the liquid of reservoir storage inside also is restricted, and the spill port 8 on the gas-liquid separation pipe is generally one, and this spill port 8 is arranged on the bottom of reservoir.

Compressor operating is in unsteady state following time, and the operative liquid cold-producing medium can arrive compressors by spill port 8, make the bottom temp of compressor reduce.When liquid refrigerant enters into the flow-rate ratio of compressor when big, the bottom temp of compressor even be lower than the temperature of evaporimeter, thus influence the performance of air-conditioning system and the life-span of compressor.If with the aperture of this spill port 8 offer hour, satisfied not the requirement of oil return again.

The utility model content

The purpose of the utility model aim to provide a kind of simple and reasonable, flexible operation, cost of manufacture low, can satisfy the reservoir that oil return requires, can guarantee the reliable compressor of compressor operating again, to overcome weak point of the prior art.

Press the reservoir of a kind of compressor of this purpose design; Comprise housing; Housing is provided with inlet tube and gas-liquid separator tube, and its architectural feature is that the end that the gas-liquid separation pipe stretches in the housing is provided with first spill port and second spill port, and first spill port is arranged on the top of second spill port.

Difference in height＞5mm between said first spill port and second spill port.

Distance＞0 of said second spill port and housing bottom and＜30mm.

The twice in the perforate aperture of the perforate aperture of said first spill port >=second spill port.

Be provided with filter in the said housing.

After the utility model adopts above-mentioned technical scheme, the liquid storage amount in reservoir more after a little while, it is above and when first spill port is following that liquid level is in second spill port; Has only the second spill port work; The liquid refrigerant of leaving in the reservoir freely volatilize, owing to the second spill port area is little, prevents by a large amount of refrigerant liquid of this second spill port inflow; Guarantee that simultaneously under the shutdown situation, refrigerator oil can return in the compressor.

Liquid storage amount in reservoir more for a long time; Liquid level is in first spill port when above, and then first spill port and second spill port are worked simultaneously, at this moment; Because get back to the inner refrigerator oil that is mostly to be positioned at the upper strata of compressor from first spill port, then the oil return property of more existing single spill port is superior.

Suppose this moment by first spill port get into compressor be not refrigerator oil but liquid refrigerant the time, the situation of existing single spill port is identical, does not worsen the phenomenon that present compressor sucks liquid refrigerant.In the process that the liquid storage amount in reservoir that so just guaranteed rises, the upper strata refrigerator oil that at first arrives first spill port is inhaled into compressor, has guaranteed that again under the shutdown situation, the refrigerator oil in the reservoir is got back to compressor by second spill port.

The utlity model has simple and reasonable, flexible operation, cost of manufacture low, can satisfy the oil return requirement, can guarantee the compressor operating reliable characteristics again.

Description of drawings

Fig. 1 is the broken section structural representation of the reservoir of existing compressor.

Fig. 2 is the broken section structural representation of the utility model one embodiment.

Fig. 3 is the local structure for amplifying sketch map among Fig. 2.

Among the figure: 8 is spill port, and 9 is first spill port, and 10 is second spill port, and 11 is housing, and 12 is inlet tube, and 13 is filter, and 14 are the gas-liquid separation pipe,

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Referring to Fig. 2-Fig. 3; The reservoir of this compressor comprises housing 11, and housing 11 is provided with inlet tube 12 and gas-liquid separator tube 14; Gas-liquid separation pipe 14 stretches into ends in the housing 11 and is provided with the top that first spill port 9 and second spill port, 10, the first spill ports 9 are arranged on second spill port 10.Height difference H＞5mm between first spill port 9 and second spill port 10.Distance h＞0 of second spill port 10 and housing 11 bottoms and＜30mm.The twice in the perforate aperture of the perforate aperture of first spill port 9 >=second spill port 10.

Be provided with filter in the housing 11.One end of inlet tube 12 stretches into the reservoir inner opening in filter 13 tops.One end of gas-liquid separation pipe 14 extend in the reservoir, and its opening is positioned at the rear of filter 13 and tries one's best near the inwall of reservoir, but does not contact, and the other end of gas-liquid separation pipe 14 connects the air entry that directly or indirectly is connected to compressor.Certainly, if when in system pipeline, being provided with other filter, the filter in the reservoir can omit.

During work; When the mixture of refrigerator oil and cold-producing medium enters in the housing 11 of reservoir through inlet tube 12; The cold-producing medium of gaseous state will get into compressor by the port of gas-liquid separation pipe 14; The liquid cold-producing medium and the mixture of refrigerator oil will remain in reservoir inner and under the effect of gravity near the bottom of reservoir, the cold-producing medium volatilization back of most of liquid state sucks compressor by the port of gas-liquid separation pipe.A small amount of not in time the cold-producing medium of the liquid state of evaporation will remain in reservoir the bottom with refrigerator oil under air-breathing differential pressure action, be inhaled into compressor by the spill port that is arranged on the gas-liquid separation pipe 14.

When the amount of the mixture of the cold-producing medium of liquid state and refrigerator oil more after a little while; Be that liquid level is higher than second spill port 10 but when not being higher than first spill port 9; The liquid refrigerator oil and the mixture of cold-producing medium then are inhaled into compressor inside by second spill port 10; At this moment, the amount of liquid refrigerant that is inhaled into compressor is less, and its reason is that the perforate aperture of second spill port 10 is smaller.When the amount of the mixture of the cold-producing medium of liquid state and refrigerator oil more for a long time; Be that liquid level rises when being higher than first spill port 9, what at first get into first spill port 9 is refrigerator oil, and refrigerator oil is inhaled into compressor inside by first spill port 9; Therefore, guaranteed the security of operation of compressor.Under the shutdown situation, the refrigerator oil that is positioned at the lower floor of reservoir is got back to compressor by second spill port 10, has guaranteed the security of operation of compressor equally.

Therefore, in the process that the liquid storage amount in reservoir that guaranteed rises, the upper strata refrigerator oil that arrives first spill port 9 earlier is inhaled into compressor, has guaranteed again that under the shutdown situation refrigerator oil in the reservoir is got back to compressor by second spill port 10.

First spill port 9 in the present embodiment and the hole shape of second spill port 10 can like circular, oval, square, rectangle, triangle or the like, receive any restriction hardly for multiple.

The total perforated area of first spill port 9 in the present embodiment and second spill port 10 should equate with the perforated area of existing single spill port.

More than be to be the explanation that example is carried out with horizontal reservoir, for vertical reservoir, above-mentioned technical scheme can be suitable for too, and can obtain same technique effect.

Claims

1. the reservoir of a compressor; Comprise housing (11); Housing (11) is provided with inlet tube (12) and gas-liquid separator tube (14); It is characterized in that the end that gas-liquid separation pipe (14) stretches in the housing (11) is provided with first spill port (9) and second spill port (10), first spill port (9) is arranged on the top of second spill port (10).

2. the reservoir of compressor according to claim 1 is characterized in that difference in height (the H)＞5mm between said first spill port (9) and second spill port (10).

3. the reservoir of compressor according to claim 1, it is characterized in that said second spill port (10) and housing (11) bottom distance (h)＞0 and＜30mm.

4. the reservoir of compressor according to claim 1 is characterized in that the twice in perforate aperture of perforate aperture >=second spill port (10) of said first spill port (9).

5. according to the reservoir of the arbitrary described compressor of claim 1 to 4, it is characterized in that being provided with filter in the said housing (11).