KR0142379B1 - Oil separator of a refrigerator - Google Patents

Abstract

The present invention relates to an oil separator of a refrigerator for preventing the mixing of the lubricating oil for the compressor into the piping of the refrigeration cycle of the refrigerator, the configuration is installed on the pipe pipe and bent outwards in the inside of the pipe pipe and the pipe A curved portion having a hollow in communication with the passage of the pipe; A coupling hole formed in a lower portion of the curved portion so as to communicate with the hollow of the curved portion and a female screw formed on an inner wall thereof; A fixed coupling part screwed to the coupling hole to block the coupling hole; A filter net made of a cylindrical wire mesh and having a predetermined length and having one end coupled to an upper surface of the fixed coupling part; First and third valve means for opening and closing the pipe pipe, both sides of which are respectively provided on the pipe pipe integrally formed with the curved part, with the curved part interposed therebetween; A bypass pipe connected in parallel with the pipe pipe; And a second valve means installed on the bypass pipe to open and close the bypass pipe.

Description

Oil Separator in Refrigerator

1 is a schematic diagram showing the installation position of the oil separator of the present invention.

2 is a partially enlarged cross-sectional view showing in detail the oil separator of the present invention.

* Explanation of symbols for main parts of the drawings

1: Compressor 2: Condenser

3: evaporator 4: capillary tube

5: oil separator 10: filtration network

6,7,8: 1st, 2nd, and 3rd valve 11: fixed coupling part

12: coupling hole 13: curved portion

20: piping pipe 21: bypass pipe

The present invention relates to an oil separator of a refrigerator, and more particularly, to an oil separator of a refrigerator for preventing mixing and flowing of lubricant oil for a compressor into a pipe of a refrigeration cycle.

The refrigeration cycle of the conventional refrigerator consists of a cycle such as a compressor → condenser → capillary → evaporator → compressor, so that the lubricating oil for the compressor in the compressor is mixed with the refrigerant and circulated to reduce the heat transfer. There was a problem of blocking the capillary tube.

In view of the above problems, the present invention filters the compressor lubricant contained in the freezing cycle of the refrigerator to circulate only the refrigerant, thereby preventing the heat transfer from deteriorating and preventing clogging due to sludge in the capillary tube when using an alternative refrigerant. An object of the present invention is to provide an oil separator of a refrigerator.

The present invention for achieving the above object is a curved portion which is installed on the pipe pipe and has a hollow that is bent outwardly in the interior of the pipe pipe and communicate with the passage of the pipe pipe; A coupling hole formed in a lower portion of the curved portion in communication with the hollow of the curved portion and having a female screw formed on an inner wall thereof; a fixed coupling portion screwed with the coupling hole to block the coupling hole; A filter net made of a cylindrical mesh and extending in a predetermined length and having one end coupled to an upper surface of the fixed coupling part; First and third valve means for opening and closing the pipe pipe, both sides of which are respectively provided on the pipe pipe integrally formed with the curved part, with the curved part interposed therebetween; A bypass pipe connected in parallel with the pipe pipe; And a second valve means installed on the bypass pipe to open and close the bypass pipe.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention.

In FIG. 2, reference numeral 5 denotes an oil separator of the present invention.

The oil separator 5 includes a curved portion 13, a coupling hole 12, a fixed coupling portion 11, and a filtering network 10.

The curved portion 13 is installed on the pipe pipe 20 and has a hollow communicating with the passage of the pipe pipe 20, and the hollow lower portion is curved outward.

The coupling hole 12 is formed through the lower portion of the curved portion 13 to communicate with the hollow of the curved portion 13, the inner wall portion is formed with a female screw.

The fixed coupling part 11 is formed with a male outer circumference and is screwed with the coupling hole 12 to block the coupling hole 12 and can be released.

The filter net 10 is coupled to the upper surface of the fixed coupling portion 11 is formed in a cylindrical shape is elongated a predetermined length.

In FIG. 1, reference numeral 20 denotes a piping pipe which connects between the compressor 1 and the condenser 2 in communication.

The oil separator 5 of the present invention is installed on the pipe pipe 20 so as to communicate with each other, and the first and the third pipes 20 may open and close the pipe pipe 20 on both sides with the oil separator 5 therebetween. Valve means (6, 8) are provided on the pipe pipe (20).

The bypass pipe 21 is connected to the pipe pipe 20 in parallel communication.

The bypass pipe 21 communicates in parallel with the pipe pipe 20 to bypass the first valve means 6, the oil separator 5, and the third valve means 8 installed on the pipe pipe 20. Is connected.

Hereinafter, the effect of the above configuration will be described.

In normal operation the first and third valve means 6, 8 are open and the second valve means 7 are closed.

Therefore, the refrigerant flowing from the compressor 1 to the condenser 2 through the pipe pipe 20 passes through the oil separator 5 installed on the pipe pipe 20 while the vaporized refrigerant passes through the filter network ( 10. The compressor lubricating oil flowing into the condenser 2 and incorporated in the vaporization refrigerant is filtered by the filtering network 10.

When a large amount of compressor lubricating oil is filtered through the filtering network 10 and the filtering network 10 needs to be replaced, the first and third valve means 6 and 8 are closed and the second valve means 7 is closed. By opening, the refrigerant is circulated through the bypass pipe 21 and the refrigerant does not flow in the pipe pipe 20.

Therefore, the filter net 12 of the contaminated fixed coupling part 11 is separated from the coupling hole 12 and replaced with the filter net 10 of the new fixed coupling part 11 to screw the coupling hole 12. The first and third valve means 6 and 8 are opened, and the second valve means 7 is closed, so that the refrigerant does not flow into the bypass pipe 21 without closing the coupling hole 12. Sludge is generated in the capillary tube 4 by flowing through the pipe 20 so as to continuously filter out the lubricating oil mixed in the refrigerant by the oil separator 5, thereby preventing the lubricating oil from being mixed into the refrigerant and circulating the piping of the refrigeration cycle. Not only can prevent, but also improve the heat transfer action.

Therefore, the present invention can filter the compressor lubricant mixed in the refrigerant by installing the oil separator between the compressor and the condenser in the refrigerating cycle of the refrigerator to prevent sludge generation in the capillary tube and improve the heat transfer action. Even when the filter screen of the separator is replaced, the first, second and third valve means can be opened and closed as described above so that the refrigerant can be circulated through the bypass pipe.

Claims (1)

A curved portion 13 installed on the pipe pipe 20 and having a hollow which is bent downwardly in the pipe pipe 20 and communicates with a passage of the pipe pipe 20; A coupling hole 12 formed in a lower portion of the curved portion 13 to communicate with a hollow of the curved portion 13 and having a female screw formed on an inner wall thereof; A fixed coupling part 11 screwed to the coupling hole 12 to block the coupling hole 12; A filter net 10 having a cylindrical shape and made of a wire mesh and having a predetermined length extended and having one end coupled to an upper surface of the fixed coupling part 11; First and third valve means (6, 8) for opening and closing the pipe pipe (20), both sides of which are respectively provided on the pipe pipe (20) integrally formed with the curved portion (14) with the curved portion (13) interposed therebetween. )Wow; The oil separator of the refrigerator, which is installed on the bypass pipe (21) and is curved by second valve means (7) for opening and closing the bypass pipe (21).