JP5754809B2 - Gas-liquid separator - Google Patents

Description

The present invention relates to a gas-liquid separator that generates a swirling flow in a casing and separates the liquid such as condensate or condensed water mixed in a gas such as steam, compressed air, or various gases by centrifugal force, and particularly in the casing. And a filter for filtering fluid.

A conventional gas-liquid separator is disclosed in Patent Document 1, for example. This is because the swirl vane is arranged in an annular space formed by the casing and the exhaust pipe, the upper part of the swirl vane is connected to the inlet, the upper part is connected to the outlet through the hole inside the exhaust pipe, and the lower part of the annular space is swirled. A fluid reservoir is formed below the chamber and the swirl chamber, the lower end of the reservoir is connected to the drainage port, and a filter for fluid filtration with a valve seat fixed at the upper end is connected to the upper end. In the exhaust pipe, the lower part is arranged in the swirl chamber.

Japanese Patent Laid-Open No. 2004-340552

In the above conventional gas-liquid separator, since most of the fluid flows down to the outlet through the lower part of the filter, there is a problem that the filter must be cleaned or replaced if foreign matter accumulates in the lower part of the filter. It was.

Therefore, the problem to be solved by the present invention is to provide a gas-liquid separator that can be reused without cleaning or replacing the filter even if foreign matter accumulates in the lower part of the filter.

In order to solve the above problems, the gas-liquid separator of the present invention has a swirl vane disposed in an annular space formed by a casing and an exhaust pipe, and the upper part of the swirl vane is connected to an inlet, and a hole inside the exhaust pipe. A valve having an opening connected to the outlet, a swirling chamber formed below the annular space, a liquid reservoir chamber formed below the swirling chamber, a lower end of the liquid reservoir chamber connected to a drainage port, and a communication port opened. A filter for fluid filtration with a seat fixed at the upper end, with the upper part located in the exhaust pipe and the lower part located in the swirl chamber, the second valve seat with the second communication port opened is fixed to the lower end of the filter, The second valve seat can be disposed in the exhaust pipe with the filter turned upside down, and the valve seat can be disposed in the swirl chamber.

According to the present invention, the second valve seat having the second communication port opened can be fixed to the lower end of the filter, the filter can be turned upside down, the second valve seat can be placed in the exhaust pipe, and the valve seat can be positioned in the swirl chamber. Therefore, if foreign matter accumulates on the second valve seat side of the filter, the filter is turned upside down and the second valve seat is placed in the exhaust pipe with the valve seat positioned in the swirl chamber to clean or replace the filter. There is an effect that it can be reused without having to.

It is sectional drawing of the gas-liquid separator concerning embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to FIG. The casing is formed by connecting the cylindrical main body 1 and the entrance / exit member 2 with a clamp joint 3 and connecting the bottom lid 4 to the lower part of the main body 1 by welding. The inlet / outlet member 2 is provided with an inlet 6 and an outlet 7 on the left and right coaxial axes, and a plug hole 5 is provided at the center of the upper end. The plug hole 5 is used for connecting a fluid pipe for backwashing or connecting a pressure gauge. The bottom lid 4 is provided with a drainage port 8 at the center of the lower end. By rotating the large-diameter portion of the second valve seat 23 described below, the valve seat 16 having the communication port 9 opened is connected to the doorway member 2 by screws. The exhaust pipe 10 is fixed to the entrance / exit member 2 by sandwiching an inward flange at the upper end of the exhaust pipe 10 between the entrance / exit member 2 and the valve seat 16. The exhaust pipe 10 has a double, substantially cylindrical shape, and the upper and lower end portions of the inner cylinder are formed so as to spread outwardly. The outer cylinder of the exhaust pipe 10 can be omitted, and the main body 1 can also be used. A swirl vane 12 is formed integrally with the exhaust pipe 10 in an annular space 11 formed between the inner and outer cylinders of the exhaust pipe 10.

The inlet 4 is connected to the lower annular space 11 through the communication hole 13, and the inside of the exhaust pipe 10 is connected to the upper outlet 5 through the communication port 9 of the valve seat 16. A swirl chamber 14 is formed between the lower inner surface of the main body 1 and the inner surface of the bottom lid 6, and a liquid reservoir chamber 15 is formed below the swirl chamber 14, and the lower end of the liquid reservoir chamber 15 is connected to the drain port 8. A long cylindrical hollow filter 22 is disposed inside the swirl chamber 14 and the exhaust pipe 10. The filter 22 fixes the valve seat 16 to the upper end by welding, and fixes the second valve seat 23 having the second communication port 24 to the lower end by welding. The second valve seat 23 has the same shape as the valve seat 16 and is fixed to the filter 22 so as to be upside down with respect to the valve seat 16. When the filter 22 is mounted upside down, the large-diameter portion of the valve seat 16 is rotated with an inward flange at the upper end of the exhaust pipe 10 interposed between the inlet / outlet member 2 and the second valve seat 23. Thus, the second valve seat 23 is screwed to the inlet / outlet member 2. The filter 22 has a large number of fine through holes, captures foreign matters such as dust and scale from the fluid flowing down the inlet 4 and the annular space 11, and discharges the fluid to the outlet 5 side. The filtration particle size of the filter 22 is preferably about 0.5 to 10 microns. About half of the total length of the filter 22 is located in the exhaust pipe 10, and the other half is located in the swirl chamber 14.

A partition member 17 is disposed between the swirl chamber 14 and the liquid reservoir chamber 15. The partition member 17 has a disk shape and has four protrusions 18 on the outer periphery, and the outer ends of the protrusions 18 are fixed to the bottom lid 6 by welding. A liquid passage gap 19 is formed between the outer peripheral edge of the partition wall member 17 between the protrusions 18 and the inner peripheral wall of the bottom cover 6.

The operation of the gas-liquid separator is as follows. A gas containing foreign matter such as liquid, dust or scale entering from the inlet 6 is swirled by swirl vanes 12. A liquid having a large mass or a foreign substance having a large particle size is swung out by the action of centrifugal force and separated, flows down along the inner peripheral wall of the main body 1, and accumulates through a liquid passage gap 19 between the protrusions 18. It flows into the chamber 15 and is discharged out of the system through the drainage port 8. Foreign matter with a small particle size contained in the swirling flow is captured and separated when passing through the filter 22. The gas that has passed to the inside of the filter 22 flows out from the outlet 5 through the communication port 9.

When foreign matter accumulates on the second valve seat 23 side of the filter 22, the filter 22 is turned upside down so that the second valve seat 23 is positioned in the exhaust pipe 10 and the valve seat 16 is positioned in the swirl chamber 14. The filter 22 can be reused without being cleaned or replaced.

INDUSTRIAL APPLICABILITY The present invention can be used for all types of gas-liquid separators in which a liquid that is mixed in gas is swirled in the casing and separated by centrifugal force and a filter for filtering the fluid is disposed in the casing. .

DESCRIPTION OF SYMBOLS 1 Main body 2 Entrance / exit member 3 Clamp joint 4 Bottom cover 5 Plug hole 6 Inlet 7 Outlet 8 Drainage port 9 Communication port 10 Exhaust pipe 11 Annular space 12 Swirling blade 13 Communication hole 14 Swivel chamber 15 Reservoir chamber 16 Valve seat 17 Partition member 18 Protrusion 19 Liquid passage gap 22 Filter 23 Second valve seat 24 Second communication port

Claims (1)

A swirl vane is arranged in an annular space formed by a casing and an exhaust pipe, the upper part of the swirl vane is connected to the inlet, the upper part is connected to the outlet through a hole inside the exhaust pipe, and the swirl chamber and the lower part are connected to the lower part of the annular space. A liquid storage chamber is formed below the swirl chamber, the lower end of the liquid storage chamber is connected to the drainage port, and a filter for fluid filtration in which the valve seat with the communication port opened is fixed to the upper end is placed in the exhaust pipe. In the case where the lower part is located in the swirl chamber, the second valve seat with the second communication port opened is fixed to the lower end of the filter, the filter is turned upside down and the second valve seat is placed in the exhaust pipe. A gas-liquid separator characterized in that it can be placed in a swirl chamber.

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