JP5112644B2 - Steam separator - Google Patents

Description

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

  In the conventional gas-liquid separator, 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, and the upper part is connected to the outlet through a hole inside the exhaust pipe, A liquid storage chamber is formed below the space, a lower end of the liquid storage chamber is connected to a drainage port, and a filter for filtering a fluid is disposed between the exhaust pipe and the liquid storage chamber.

In the above conventional gas-liquid separator, when the operation of the fluid piping system in which the gas-liquid separator is installed is stopped, the fluid piping system is in a vacuum state, and the gas-liquid separator or the outlet of the gas-liquid separator There was a problem that the fluid equipment connected to the side was damaged.
JP2004-340452A

  Therefore, the technical problem of the present invention is to provide a gas-liquid separator capable of breaking the vacuum state by introducing the atmosphere when the fluid piping system in which the gas-liquid separator is installed is in a vacuum state. .

The technical means of the present invention devised to solve the above technical problem is that 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 an inlet, and the inside of the exhaust pipe The upper part is connected to the outlet through the hole, and a liquid storage chamber is formed below the annular space, the lower end of the liquid storage chamber is connected to the drainage port, and the fluid is filtered between the exhaust pipe and the liquid storage chamber. An air port that opens to the atmosphere is formed between the exhaust pipe and the outlet, and normally rises to close the air port, and descends when the fluid piping system is in a vacuum state. The valve body that opens the air opening is disposed below the air opening so as to face the air opening .

  Since the present invention can break the vacuum state by introducing the atmosphere when the fluid piping system in which the gas-liquid separator is installed is in a vacuum state, it can be connected to the gas-liquid separator or the outlet side of the gas-liquid separator. This produces an excellent effect of preventing damage to the fluid-using device.

The present invention forms an atmospheric opening that opens to the atmosphere between the exhaust pipe and the outlet, and normally rises to close the atmospheric opening and descends to open the atmospheric opening when the fluid piping system is in a vacuum state. The valve body to be disposed is arranged below the atmospheric opening so as to face the atmospheric opening . For this reason, when the fluid piping system is in a vacuum state, for example, when the operation of the fluid piping system in which the gas-liquid separator is installed is stopped, the atmosphere is introduced from the atmosphere port, so that the vacuum state can be broken.

  An embodiment showing a specific example of the above technical means will be described (see FIG. 1). The casing is formed by connecting the cylindrical main body 1 and the entrance / exit member 2 with a clamp joint 3. A bottom cover 6 is attached to the lower part of the main body 1 by welding, and a drainage port 8 is provided at the center of the lower end of the bottom cover 6. The inlet / outlet member 2 is provided with an inlet 4 and an outlet 5 on the left and right coaxial axes, and an air outlet 7 is provided at the center of the upper end.

  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 is closed by fixing the upper end to the valve seat 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 from the fluid flowing down the inlet 4 and the annular space 11 and discharges it 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 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 communication port 9 is located between the exhaust pipe 10 and the outlet 5, and the atmosphere port 7 communicates between the communication port 9 and the outlet 5 to the atmosphere. Opposite to the atmosphere port 7, the atmosphere port 7 is normally closed, and a valve body 20 that opens the atmosphere port 7 when the exhaust pipe 10 and the outlet 5 are in a vacuum state is disposed. Four ribs are formed at the upper end of the communication port 9 so that the valve body 20 does not block the communication port 9.

  A gas containing foreign matter such as liquid and rust entering from the inlet 4 is swirled by swirl vanes 12. A 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 main body 1, passes through the liquid passage gap 19 between the protrusions 18, and enters the liquid storage chamber 15. It flows in 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 valve body 20 disposed between the communication port 9 and the atmosphere port 7 normally closes the atmosphere port 7. The gas that has passed to the inside of the filter 22 flows out from the outlet 5 through the communication port 9. When the exhaust pipe 10 and the outlet 5 are in a vacuum state, the valve body 20 opens the atmosphere port 7 and introduces the atmosphere from the atmosphere port 7 to the exhaust pipe 10 and the outlet 5 to break the vacuum state.

It is sectional drawing of the steam separator of the Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Entrance / exit member 3 Clamp joint 4 Inlet 5 Outlet 6 Bottom cover 7 Atmospheric port 8 Drainage port 9 Communication port 10 Exhaust pipe 11 Annular space 12 Swirling blade 14 Swivel chamber 15 Reservoir chamber 16 Valve seat 17 Partition member 20 Valve body 22 Filter

Claims (1)

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 liquid storage chamber is formed below the annular space. An atmosphere that is formed and connected to the drainage port at the lower end of the liquid reservoir, and a filter that filters the fluid is disposed between the exhaust pipe and the liquid reservoir, and that opens to the atmosphere between the exhaust pipe and the outlet. forming a mouth, usually raised by closing the air inlet, arranged the valve element to open the atmospheric air port and drops when the fluid piping system becomes a vacuum state so as to face the air outlet below the atmospheric air port A gas-liquid separator characterized by that.

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