CN201748724U

CN201748724U - Gas-liquid separator

Info

Publication number: CN201748724U
Application number: CN 201020279414
Authority: CN
Inventors: 叶圣陶; 刘志胜
Original assignee: Ningbo Aux Electric Co Ltd
Current assignee: Ningbo Aux Electric Co Ltd
Priority date: 2010-07-29
Filing date: 2010-07-29
Publication date: 2011-02-16
Anticipated expiration: 2020-07-29

Abstract

The utility model discloses a gas-liquid separator, which comprises a shell (1), a gas outlet pipe (2) and a gas inlet pipe (3). The shell (1) is a sealed shell. The gas inlet end of the gas inlet pipe (3) is arranged outside the shell (1). The gas outlet end of the gas inlet pipe (3) is arranged on the upper part inside the shell (1). The gas inlet end of the gas outlet pipe (2) is arranged inside the top part of the shell (1). The gas outlet end of the gas outlet pipe (2) is arranged outside the shell (1). The gas outlet pipe (2) which is arranged inside the top part of the shell (1) is a straight pipe. The lower part of the shell (1) is provided with a filtering device (4). An oil return pipe (5) is communicated between the filtering device (4) and the gas outlet pipe (2). According to the gas-liquid separator, the diameter of the shell can be reduced, and the liquid return quantity can be conveniently controlled.

Description

Gas-liquid separator

Technical field

The utility model relates to a kind of gas-liquid separator, relates to a kind of suction side in the air-conditioning system that is installed in or rather, is used for the gas-liquid separator that refrigerant air-liquid separates.

Background technology

The ambient temperature range of air-conditioner work is bigger, if worst cold case evaporimeter steam scarce capacity, perhaps the reaction of the controlling organization of air-conditioner is untimely, all may cause a large amount of liquid refrigerants to return suction side.Enter compressor in a large number for fear of liquid refrigerant, the air-conditioning system that refrigerant charge is bigger mostly disposes gas-liquid separator in suction side.The main effect of gas-liquid separator is the intrasystem part cold-producing medium of interim storage, prevents that running total compressor suction liquid is too much, causes the wearing and tearing of compressor moving component, even the compressor liquid hammer.In addition, gas-liquid separator also must be carried back compressor with the refrigeration oil in the separator, keeps the proper lubrication of compressor.

See also shown in Figure 1 in the Figure of description, the gas-liquid separator of prior art comprises housing 1 ', air inlet pipe 3 ' and escape pipe 2 ', and described housing 1 ' is a seal casinghousing, and described escape pipe 2 ' is the U-shaped escape pipe.The inlet end of described air inlet pipe 3 ' places outside the described housing 1 ', and the outlet side of described air inlet pipe 3 ' places housing 1 ' internal upper part.The inlet end of described U-shaped escape pipe 2 ' places in the described housing 1 ' top, and the outlet side of described U-shaped escape pipe 2 ' places outside the described housing 1 '.Described U-shaped escape pipe 2 ' is provided with balancing orifice 4 ' and spill port 5 ', and described balancing orifice 4 ' places in the described housing 1 ', and the outlet side of close described U-shaped escape pipe 2 '.Described spill port 5 ' is installed in the pipe bent position of described U-shaped escape pipe 2 ', and places in the described housing 1 ' bottom.There is following defective in this kind prior art: described escape pipe 2 ' is designed to U-shaped, deploy greatly in described housing 1 ', and U-shaped escape pipe 2 ' size big or small to caliber and bend pipe all has certain requirement, thereby make that the diameter of housing 1 ' can not be too little, must guarantee to hold U-shaped escape pipe 2 '.In addition, the size of spill port 5 ' directly influences back liquid measure, and the definite of spill port 5 ' size need do a large amount of verification experimental verifications according to different refrigeration systems, and spill port 5 ' is installed on the escape pipe 2 ', change inconvenient, thereby be not easy to carry out verification experimental verification, thereby just be difficult to control back liquid measure.

The utility model content

The technical problems to be solved in the utility model is, provides a kind of and can dwindle diameter of the housing, controls back liquid measure gas-liquid separator easily.

Technical solution of the present utility model is, a kind of gas-liquid separator with following structure is provided, it comprises housing, escape pipe and air inlet pipe, described housing is a seal casinghousing, the inlet end of described air inlet pipe places outside the described housing, and the outlet side of described air inlet pipe places the top in the described housing, and the inlet end of described escape pipe places in the case top, the outlet side of described escape pipe places outside the described housing, and described escape pipe places the straight tube that is in the case top; Described lower part of frame is provided with filter, is communicated with oil return pipe between described filter and the described escape pipe.

After adopting above structure, the utility model gas-liquid separator compared with prior art has the following advantages:

Because the inlet end of described escape pipe places in the case top, the outlet side of described escape pipe places outside the described housing, described escape pipe places the straight tube that is in the case top, therefore, with respect to prior art, can dwindle diameter of the housing, as long as place part in the housing and escape pipe to place the straight tube in the case top can just can hold air inlet pipe.Because the bottom in the described housing is provided with filter, described filter is communicated with oil return pipe between described escape pipe, therefore, can return liquid, control back liquid measure by length and the internal diameter size of changing oil return pipe by filter and oil return pipe.Thereby need not control back liquid measure by changing the spill port size, thereby also avoid doing definite experiment of spill port size, make and control back liquid measure conveniently.

As a kind of improvement of the present utility model, described filter comprises screen pack and flowline, described screen pack places in the described housing, and be fixed on the top of described flowline, described screen pack is communicated with described flowline, is communicated with oil return pipe between described flowline and the described escape pipe.Because filter comprises screen pack, screen pack can stop the impurity in the housing to enter into oil return pipe with oil and liquid refrigerant, thereby avoids causing oil return pipe to stop up.

Description of drawings

Fig. 1 is the structural representation of the gas-liquid separator of prior art.

Fig. 2 is the structural representation of the utility model gas-liquid separator.

Shown in the figure:

Prior art: 1 ', housing, 2 ', escape pipe, 3 ', air inlet pipe, 4 ', balancing orifice, 5 ', spill port.

The utility model: 1, housing, 2, escape pipe, 2.1, transverse tube, 2.2, vertical tube, 3, air inlet pipe, 4, filter, 4.1 screen packs, 4.2 flowlines, 5, oil return pipe.

The specific embodiment

The utility model is described in further detail below in conjunction with the drawings and specific embodiments.

See also shown in Figure 2ly, the utility model gas-liquid separator comprises housing 1, escape pipe 2 and air inlet pipe 3, and described housing 1 is a seal casinghousing.The inlet end of described air inlet pipe 3 places outside the described housing 1, and the outlet side of described air inlet pipe 3 places the top in the described housing 1.Described escape pipe 2 is fixedlyed connected with a vertical tube 2.2 by a transverse tube 2.1, and the end of described vertical tube 2.2 is that inlet end places in described housing 1 top, and described transverse tube 2.1 places outside the described housing 1.The bottom of described housing 1 is provided with filter 4, and described filter 4 comprises screen pack 4.1 and flowline 4.2, and described screen pack 4.1 places in the described housing 1, and is fixed on the top of described flowline 4.2.Described screen pack 4.1 is communicated with described flowline 4.2.Be communicated with oil return pipe 5 between described flowline 4.2 and the described escape pipe 2.

During work, gas-liquid mixture enters in the gas-liquid separator housing 1 from air inlet pipe 3, under the effect of gravity, carries out gas-liquid separation in gas-liquid separator housing 1.The gaseous refrigerant that density is little is discharged from the escape pipe 2 on housing 1 top, and the mixture of liquid refrigerant that density is big and oil sinks to the bottom of gas-liquid separator housing 1.The mixture of liquid refrigerant and oil enters into flowline 4.2 through screen pack 4.1.Because gaseous refrigerant flows in the escape pipe 2, cause the static pressure in the escape pipe 2 lower than the pressure in the flowline 4.2, the mixture of operative liquid cold-producing medium and oil can be under the effect of pressure reduction, enter in the escape pipe 2 through oil return pipe 5, flow out with refrigerant gas, enter in the compressor suction duct.

Claims

1. gas-liquid separator, it comprises housing (1), escape pipe (2) and air inlet pipe (3), described housing (1) is a seal casinghousing, the inlet end of described air inlet pipe (3) places outside the described housing (1), the outlet side of described air inlet pipe (3) places the top in the described housing (1), it is characterized in that: the inlet end of described escape pipe (2) places in housing (1) top, the outlet side of described escape pipe (2) places outside the described housing (1), and described escape pipe (2) places the straight tube that is in housing (1) top; The bottom of described housing (1) is provided with filter (4), is communicated with oil return pipe (5) between described filter (4) and the described escape pipe (2).

2. gas-liquid separator according to claim 1, it is characterized in that: described filter (4) comprises screen pack (4.1) and flowline (4.2), described screen pack (4.1) places in the described housing (1), and be fixed on the top of described flowline (4.2), described screen pack (4.1) is communicated with described flowline (4.2), is communicated with oil return pipe (5) between described flowline (4.2) and the described escape pipe (2).

3. gas-liquid separator according to claim 1, it is characterized in that: described escape pipe (2) is fixedlyed connected with a vertical tube (2.2) by a transverse tube (2.1), the end of described vertical tube (2.2) places in described housing (1) top, and described transverse tube (2.1) places outside the described housing (1).