JP5489564B2 - Gas-liquid separator - Google Patents

Description

The present invention relates to a gas-liquid separator that separates liquids such as condensate and condensed water mixed in gas such as steam, compressed air, and various gases by centrifugal force by causing a swirling flow in a casing.

A conventional gas-liquid separator is disclosed in Patent Document 1, for example. This is because a double substantially cylindrical partition member is disposed in the casing, a swirl vane is disposed between the inner cylinder and the outer cylinder of the partition member, the upper part of the swirl blade is connected to the inlet, and the inner side of the partition member The upper part is connected to the outlet through the exhaust hole inside the cylinder, the swirl chamber is formed below the partition member and the liquid reservoir is formed below the swirl chamber, and the lower part of the liquid reservoir is connected to the drain port, A partition member is arranged between the swirl chamber and the liquid reservoir chamber, and a bypass pipe serving as a liquid passage communicating with the lower portion of the inlet and the liquid reservoir chamber below the partition member is connected to the outside of the casing. It is.

JP-A-2005-864

The above conventional gas-liquid separator allows the gas-liquid to flow directly through the bypass pipe as a liquid passage to the liquid storage chamber even when the amount of liquid flowing into the inlet is large. The separation efficiency can be increased. However, it is troublesome because a bypass pipe as a liquid passage has to be piped outside the casing, and it is difficult to ensure that the liquid flowing through the lower part of the inlet flows into the bypass pipe. There was a problem that could not be raised.

Therefore, the problem to be solved by the present invention is to provide a gas-liquid separator capable of reliably flowing the liquid flowing in the lower portion of the inlet into the liquid passage with a simple structure.

In order to solve the above problems, the gas-liquid separator of the present invention has a double substantially cylindrical partition member disposed in a casing, and swirl vanes disposed between an inner cylinder and an outer cylinder of the partition member. The upper part of the swirl vane is connected to the inlet, the upper part is connected to the outlet through the exhaust hole inside the inner cylinder of the partition member, and a swirl chamber is formed below the partition member and a liquid reservoir chamber is formed below the swirl chamber. The lower part of the liquid storage chamber is connected to the drainage port, and a partition member is disposed between the swirl chamber and the liquid storage chamber, and a liquid passage is formed between the outer side of the outer cylinder of the partition wall member and the inner side of the casing. A liquid passage space is formed, the upper portion of the liquid passage space is connected to the inlet, a protrusion protruding above the lower end of the inlet is formed at the upper end of the outer cylinder of the partition member, and the lower end of the liquid passage space is connected to the partition member. It is characterized by being opened in the lower liquid reservoir.

According to the present invention, a liquid passage space as a liquid passage is formed between the outer side of the outer cylinder of the partition member and the inner side of the casing, the upper part of the liquid passage space is connected to the inlet, and the upper end of the outer cylinder of the partition member A protrusion protruding upward from the lower end of the inlet is formed on the inner surface of the casing, and the lower end of the liquid passage space is opened in the liquid reservoir chamber below the partition member, thereby forming a liquid passage space as a liquid passage inside the casing. The liquid flowing through the lower part of the inlet can be surely flowed into the liquid passage space as the liquid passage by the protrusion, and the liquid flowing down to the liquid storage chamber through the liquid passage space is discharged together with the gas. It has an excellent effect that it can be prevented from being carried out.

It is sectional drawing of the steam-water 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 joining the cylindrical main body 1 and the entrance / exit member 2 with a clamp joint 3 and attaching a bottom lid 6 to the lower portion of the main body 1 by welding. The inlet / outlet member 2 is provided with an inlet 4 and an outlet 5 that extend horizontally on the left and right coaxial lines, and a plug hole 7 at the center of the upper end. The bottom lid 6 is provided with a drainage port 8 at the center of the lower end. The male screw member 16 having the communication port 9 opened in the doorway member 2 is screwed. The partition member 10 is fixed to the entrance / exit member 2 by sandwiching an inward flange at the upper end of the inner cylinder 10 a of the double substantially cylindrical partition member 10 between the entrance / exit member 2 and the male screw member 16. The inner cylinder 10a of the partition member 10 has upper and lower ends that are widened toward the end. A protrusion 10 c is formed at the upper end of the outer cylinder 10 b of the partition wall member 10 so as to protrude above the lower end of the inlet 4. A swirl vane 12 is formed integrally with the partition member 10 between the inner cylinder 10 a and the outer cylinder 10 b of the partition member 10.

The upper part of the swirl vane 12 is connected to the inlet 4, and the upper part thereof is connected to the outlet 5 through the communication port 9 of the male screw member 16 from the exhaust hole 11 inside the inner cylinder 10 a of the partition member 10. A liquid passage space 13 is formed as a liquid passage between the outside of the outer cylinder 10 b of the partition member 10 and the inside of the lower part of the entrance / exit member 2, the inside of the main body 1, and the inside of the upper part of the bottom cover 6. The swirl chamber 14 is formed inside the outer cylinder 10 b below the inner cylinder 10 a of the partition member 10, the liquid reservoir chamber 15 partitioned by the partition member 17 is formed below the swirl chamber 14, and the lower end of the liquid reservoir 15 Is connected to the drainage port 8. The partition member 17 has a disc shape and has four protrusions 18 on the outer periphery, and the outer ends of the protrusions 18 are fixed to the outer cylinder 10b of the partition wall member 10 by welding. A liquid passage gap 19 is formed between the outer peripheral edge of the partition member 17 between the protrusions 18 and the inner peripheral wall of the outer cylinder 10 b of the partition wall member 10. The upper part of the liquid passage space 13 is connected to the inlet 4, and the lower end of the liquid passage space 13 opens into the liquid reservoir chamber 14 below the partition member 17.

A long cylindrical hollow filter 22 is disposed inside the swirl chamber 14 and the inner cylinder 10 a of the partition member 10. The filter 22 is closed by fixing the upper end to the male screw member 16 by welding and fixing the plug 23 to the lower end by welding. The filter 22 has a large number of fine through holes, and filters out foreign matters such as rust flowing down from the inlet 4 together with the fluid to discharge only the fluid to the outlet 5 side. The particle size of the filter 22 is preferably about 2 to 10 microns. About half of the total length of the filter 22 is located in the partition member 10, and the other half is located in the swirl chamber 14.

The operation of the above embodiment will be described. Foreign matter such as liquid and rust flowing under the inlet 4 is guided by the protrusion 10c of the partition member 10, flows into the liquid storage chamber 15 from the liquid passage space 13, and is discharged out of the system through the drainage port 8. A gas containing liquid or rust and other foreign substances flowing in the middle or upper part of the inlet 4 is swirled by swirl vanes 12 when flowing between the inner cylinder 10a and the outer cylinder 10b of the partition wall member 10. Liquid or foreign matter having a large mass is swung out and separated by the action of centrifugal force, flows down along the inner peripheral wall of the outer cylinder 10 b of the partition member 10, and accumulates through the 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. Droplets and foreign matters having a small mass contained in the swirling flow are filtered and separated when passing through the filter 22, flow down along the outer periphery of the filter 22, flow into the lower liquid storage chamber 15, and are discharged from the drainage port. 8 is discharged out of the system. The gas that has passed to the inside of the filter 22 flows out from the outlet 5 through the communication port 9.

INDUSTRIAL APPLICATION This invention can be utilized for the gas-liquid separator which raise | generates the swirl | vortex flow in a casing and isolate | separates it by centrifugal force in the gas.

DESCRIPTION OF SYMBOLS 1 Main body 2 Entrance / exit member 4 Inlet 5 Outlet 6 Bottom cover 8 Drain outlet 10 Partition member 10a Inner cylinder 10b Outer cylinder 10c Protrusion 11 Exhaust hole 12 Swirling blade 13 Liquid passage space 14 Swivel chamber 15 Reservoir chamber 17 Partition member

Claims (1)

The partition member dual generally cylindrical and disposed in the casing, the swirl vanes between the inner cylinder and the outer cylinder of the partition member is arranged, connecting the upper side of the swirl vanes in the inlet, of the partition member connecting the upper to the outlet through the inside of the exhaust holes of the inner cylinder, said forming a swirl chamber inside the outer cylinder of the lower of the inner cylindrical partition wall member, forming a liquid reservoir chamber below the swirl chamber and by connecting the lower portion of the Ekitamarishitsu the drain port, a partition member disposed between said liquid reservoir and said swirling chamber, between the inside of the outer cylinder of the outer and the casing of the partition member to form a liquid passage space as a liquid passage, said upper liquid passing space connected to the inlet, to form the projection projecting upward from the inlet at the lower end to the upper end of the outer cylinder of the partition wall member, below the partition member a lower end of the liquid passing space Gas-liquid separator which is characterized in that is opened to the liquid reservoir chamber.

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