JPH0534738Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a gas-liquid separator for separating and removing mist such as oil or water entrained in pressurized gas or the like.

[Conventional technology]

A mist of lubricating oil from the refrigerator is discharged from the compressor together with high-pressure refrigerant into the refrigerant circuit of the refrigerator, but if it enters the heat exchanger and adheres to the inside, it not only reduces the heat exchange efficiency but also damages the compressor. may cause insufficient lubrication. Therefore, an oil separator is often provided to separate oil entrained in a mist form from the high-pressure gas discharged from the compressor and return it to the compressor.

As such an oil separator, for example, the Utility Model No. 61-
As proposed in No. 3374 and Utility Model Application Publication No. 61-106324, an oil separation member such as a filter made of wire mesh is installed in a sealed container to divide the inside of the container into two, and the oil introduced from one side is separated. The entire amount of the gas containing the oil is passed through an oil separation member, and the gas from which the oil has been removed is discharged from the other side.

[Problem to be solved]

In such conventional oil separators, in order to efficiently separate oil, it is necessary to increase the density of the oil separation member installed between the inlet and outlet sides, which not only increases ventilation resistance but also increases the There is a drawback that the oil collected by the separation member is blown away again and directed toward the outlet.

Therefore, an object of the present invention is to provide a gas-liquid separator that can efficiently separate mist from gas without increasing the flow resistance to gas containing oil mist or the like.

[Means to solve the problem]

The gas-liquid separator of the present invention, which can achieve the above-mentioned objects, has a gas-liquid mixed fluid introduction pipe on the upper side wall, a gas discharge pipe on the upper end, and a liquid discharge pipe on the lower end. a partition wall that divides the fluid introduction chamber into a fluid introduction chamber and a gas discharge chamber and changes the direction of introduction of fluid from the fluid introduction pipe downward; A porous partition plate is provided to partition the fluid introduction pipe, and a gas-permeable gas-liquid separator is provided in front of the fluid introduction pipe so that it approaches the end of the fluid introduction pipe at the lower side and is separated from the upper side. be.

Furthermore, an even better effect can be achieved by using, as such a gas-liquid separator, a mesh that is loosely combined into multiple layers so that they do not come into close contact with each other. It can be selected as appropriate.

[Effect]

When trying to collect and separate only oil from a gas containing oil mist using the gas-liquid separator of the present invention, for example, when attempting to collect and separate only oil from a gas containing oil mist, the fluid entering from the introduction pipe on the side wall of the fluid introduction chamber is passed through the multi-layered mesh provided in front of the fluid introduction chamber. The liquid collides with the gas-liquid separator made up of the liquid, and part of it passes through the net, but the other part deviates laterally and eventually flows downward along the partition wall. However, the oil mist is unable to change direction due to inertia, and almost all of it collides with the gas-liquid separator and is captured by it, sequentially flowing down, passing through the porous partition plate, and falling to the bottom of the can body.

The gas from which the oil mist has been separated in this way enters the lower part of the can together with the oil content, where it changes direction by 180 degrees and enters the upper gas outlet chamber, so that only the gas from which the oil content has been almost completely separated is delivered to the outlet pipe. It can be extracted from.

〔Example〕

An example of the gas-liquid separator of the present invention will be explained with reference to FIG.

Reference numeral 1 denotes a cylindrical can body, which is constructed by joining an upper can body 1a and a lower can body 1b.

A fluid inlet pipe 2 is attached to the side wall of the upper can body 1a, and a gas outlet pipe 3 is attached to the top. A liquid discharge pipe 4 is attached to the bottom of the lower can body 1b, and a partition plate 5 is provided at the joint between the upper can body 1a and the lower can body 1b.

The inside of the upper can body 1a is separated into a fluid introduction chamber A and a gas discharge chamber C by a partition wall 6 whose lower end is joined to a partition plate 5, and a separation chamber B and a fluid introduction chamber A in the lower can body 1b. A plurality of slits 5a are provided in the partition plate 5 between the separation chamber B and the gas derivation chamber C.
communicated by.

Gas containing liquid mist flowing into the fluid introduction chamber A from the fluid introduction pipe 2 of the gas-liquid separator main body configured in such a shape collides with the partition wall 6 and once changes its direction vertically and horizontally. The gas flows downward and enters the separation chamber B through the slit 5a of the partition plate 5, but inside the separation chamber B, it is further turned around, faces upward, and is discharged from the gas discharge pipe 3 through the gas discharge chamber C.

By the way, in the gas-liquid separator of the present invention, an air-permeable gas-liquid separator in the form of a plurality of wire meshes is provided in the fluid introduction chamber A. Such a gas-liquid separator allows gas to freely pass through it, but so as not to block the end of the fluid introduction pipe, it is designed so that the lower side is close to the end and the upper side is separated from the end. It is set at an angle. Therefore, most of the fluid flowing in from the fluid introduction pipe 2 rushes toward the gas-permeable gas-liquid separator 7 composed of a wire mesh, and only a portion of the gas adheres to the surface of the gas-liquid separator 7. It can be directed upward or sideways. At this time, the liquid mist contained in the fluid has a large inertia, so it cannot change direction, and most of it rushes into the gas-liquid separator 7 and is captured, flows down due to the action of surface tension and gravity, and then It falls into the separation chamber B through the slit 5a of the plate 5. The droplets that have fallen into the separation chamber B in this manner do not accompany the upward flow of gas, but flow out only from the liquid discharge pipe 4 at the bottom.

The gas-permeable gas-liquid separator in this example is:
A wire mesh (24 mesh) made of stainless steel with a width of about 30 mm is wrapped three times around a core with a diameter of about 15 mm, then the core is removed and only the edges on both sides are crushed, resulting in a bulge in the center. This is a gas-liquid separator consisting of multiple layers of wire mesh, and is fixed so that the center plane is inclined at an angle of 20 degrees with respect to the end surface of the fluid introduction tube.

However, the material, shape, dimensions, etc. of the gas-liquid separator may be freely changed depending on the properties and processing amount of the gas or liquid to be used, as long as the object of the present invention can be achieved.

[Effect of idea]

Since the gas-liquid separator of the present invention is configured as described above, it has low gas flow resistance, and is therefore not only able to be made smaller in relation to the processing flow rate, but also has extremely high separation efficiency. It has its features.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of an example of the gas-liquid separator of the present invention. 1... Can body, 2... Fluid introduction pipe, 3... Gas outlet pipe, 4... Liquid discharge pipe, 5... Partition plate, 6...
Partition wall, 7... Gas-liquid separator, A... Fluid introduction chamber, B
...Separation chamber, C...Gas derivation chamber.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Inside the can, the upper side wall is equipped with a gas-liquid mixed fluid inlet pipe, the upper end is equipped with a gas outlet pipe, and the lower end is equipped with a liquid discharge pipe. a partition wall that divides the fluid into a discharge chamber and changes the direction of fluid introduction from the fluid introduction pipe downward, and a porous partition plate that is connected to a lower end of the partition wall and partitions the fluid introduction chamber from the lower part of the can body. A gas-liquid separator comprising: a gas-permeable gas-liquid separator provided in front of the fluid introduction pipe so as to be close to the lower side of the end of the fluid introduction pipe and spaced apart above the end of the fluid introduction pipe. (2) The gas-liquid separator according to claim (1), wherein the gas-liquid separator is formed of a plurality of layers of mesh.