JPS6244140Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compressor characterized in that it is provided with a mechanism for separating liquid components in gas on the suction side within a housing housing the compression mechanism.

As an example of a conventional electric hermetic compressor, as shown in FIG.
The compression mechanism is arranged at the lower part of the housing 2 by rotationally driving the compressor.
Refrigerant gas is supplied into the housing 2 from the suction pipe 1, and is sucked into the compression cylinder 5 from the air gap 3 of the electric motor through the suction cavity 4, where it becomes high temperature and high pressure gas, and is then transferred to the discharge cavity 6,
After passing through the discharge muffler 7 and being taken out of the housing 2 from the discharge pipe, the gas is converted into a low-temperature, low-pressure gas after heat exchange and is supplied into the housing 2 from the suction pipe 1 in a circulation cycle.

Therefore, in the compressor described above, the suction side gas of the low temperature, low pressure refrigerant flowing into the housing 2 from the suction pipe 1 is mixed with a portion of the lubricating oil a circulated for lubrication of the compressor and a portion of the liquid refrigerant. Mixing may result in a gas-liquid mixed state, and if the suction side gas is directly led into the compression mechanism and compressed, there is a problem that it may cause valve cracking, abnormal noises, etc.

The present invention relates to an idea to solve the above-mentioned difficulties in conventional compressors, and includes a porous disk rotated by a compressor shaft in a gas flow path on the suction side in a housing housing a compression mechanism. The feature is that the disc is used to separate the liquid component of the suction side gas, and its purpose is to separate the refrigerant from the suction side before it is introduced into the motor and compression mechanism. The object of the present invention is to provide a compressor that prevents valve cracking and abnormal noise caused by gas-liquid mixed refrigerant by separating and removing the liquid component in the side gas.

The present invention has the above-mentioned structure, and a porous disk rotated by the compressor shaft is provided in the suction side gas flow path in the housing, and the liquid content in the suction side gas is controlled by the disk. Since the structure is such that the suction side gas flow before flowing into the motor and compressor in the housing is affected by the porous disk rotated by the compressor shaft, the suction side gas flow is After the liquid in the gas flow enters the porous structure of the disk, it is separated laterally by centrifugal force and is separated very efficiently.
The suction side gas after liquid separation is directly introduced into the compressor via the air gap of the electric motor.
Valve cracking and abnormal noise can be effectively eliminated, and compression performance can be significantly improved.

In addition, this proposal has an extremely simple configuration in which a porous disk is arranged to be rotated by a compressor shaft driven by an electric motor, so it can be easily installed in an existing narrow housing. It has versatility and practicality because it can be attached and can bring about extremely efficient effects as described above.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 2 shows an embodiment of the present invention, in which 1 is a refrigerant gas suction pipe arranged at the upper part of the housing 2, 2 is a housing containing an electric motor and a compressor, 3 is an air gap for the electric motor, and 4 is an air gap for the electric motor. is the suction cavity on the compressor side, 5 is the compression cylinder, 6
7 is a discharge cavity from the compressor side, 7 is a discharge muffler, and 8 is a compressor shaft rotationally driven by an electric motor, and a porous disk 10 is fixed to the upper end of the compressor shaft. , the same disk 10
As shown in the figure, is located almost directly above the air gap 3 of the electric motor and below the suction pipe 1, and is arranged in the suction side gas flow path of the low-temperature, low-pressure refrigerant so that it can be rotated. .

The illustrated embodiment of the present invention has the above-described structure, so that the gas flow of the refrigerant suction side gas supplied from the suction pipe 1 into the housing 2 is sucked into the air gap 3 of the electric motor. It is acted upon by a porous disk 10 placed in the same gas flow path before the gas flow.

Since the lower surface side of the disk 10 faces the air gap 3 side, it receives negative pressure from the compression mechanism side, and the disk 10
causes a gas flow in the pores shown above and below, so that
The liquid content in the gas sucked into the disc 10 is accumulated, and the liquid content flows toward the outer circumference and is blown to the side by the centrifugal force caused by the rotation of the disc 10, so that the liquid content in the flow path is The liquid component of the suction side gas is separated and removed. Since this disc 10 adsorbs liquid through its pores and then discharges it to the side, its liquid separating action can be achieved at an extremely high rate.

Furthermore, since the suction side gas after the liquid separation by the disk 10 is directly introduced into the compression cylinder 5 of the compression mechanism via the air gap 3 and the suction cavity 4, mixing of liquid during the introduction is extremely difficult. Valve cracks and abnormal noises in the compression mechanism, discharge cavity 6, and discharge muffler 7 are eliminated or minimized, and the compression function is significantly improved.

It also has a simple structure in which a porous disk 10 is attached to the compressor shaft 8 as shown in the figure.
It has the advantage of versatility and practicality, allowing it to be easily attached to existing compressors.

In the embodiment, the disc 10 is provided directly on the drive shaft, but its interlocking structure is not limited to the mechanism and various designs are possible. Also, the porous shape of the disc is suitable for gas absorption as described above. It is not specified as long as it has a structure that allows some of the liquid to pass through and adsorb the liquid. Further, in the above embodiments, an electric hermetic compressor is exemplified, but the present invention can be applied to various types of compressors that can achieve the purpose of the present invention.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing the structure of a conventional compressor (electric sealed type), and FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention. 1: Suction pipe, 2: Housing, 3: Air gap, 4: Suction cavity, 5: Compression cylinder, 6: Discharge cavity, 7: Discharge muffler,
8: Compressor shaft, 10: Disc.

Claims (1)

[Scope of utility model registration request] A porous disk rotated by a compressor shaft is provided in the suction side gas flow path in the housing housing the compression mechanism, and the liquid separation of the suction side gas is performed by the disk. A compressor with special features.