JP5774334B2 - 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 a gas such as steam, compressed air, and various gases by a swirling flow in a casing and centrifugal force.

A conventional gas-liquid separator is disclosed in Patent Document 1, for example. This is because the swirl vane is arranged in the annular space formed by the casing and the exhaust pipe, the upper part of the annular space 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 liquid reservoir chamber is formed below the chamber and the swirl chamber, the lower end of the liquid reservoir chamber is connected to the drainage port, a partition member is disposed between the swirl chamber and the liquid reservoir chamber, In this embodiment, a liquid passage gap is formed between the inner peripheral wall of the casing and a partition wall member is connected to the other end of the coil spring having one end connected to the exhaust pipe.

JP 2008-95893 A

The conventional gas-liquid separator collides a minute liquid swirling from the center of the swirl chamber with a coil spring disposed between the exhaust pipe and the partition member and separates it from the gas, along the coil spring. By letting it flow down, it is prevented from being re-engaged in the gas and carried out to the outlet. However, it is difficult for the minute liquid reaching the upper surface of the partition member to flow into the liquid storage chamber through the liquid passage gap, so that it is easily taken up by the gas and carried out to the outlet, leaving room for improvement. It was a thing.

Therefore, the problem to be solved by the present invention is to prevent the minute liquid from being re-entrained in the gas and carried out to the outlet.

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 an upper portion of the annular space is connected to an inlet, and a hole inside the exhaust pipe. The swirl chamber and the liquid reservoir chamber are connected to the outlet, the swirl chamber is formed below the annular space, the liquid reservoir chamber is formed below the swirl chamber, and the lower end of the liquid reservoir chamber is coupled to the drainage port. A partition member is disposed between the outer peripheral edge of the partition member and the inner peripheral wall of the casing, and a liquid passage gap is formed between the other end side of the coil spring having one end connected to the exhaust pipe. In this embodiment, the coil spring is a conical coil spring having a coil radius that increases toward the partition member below.

According to the present invention, the coil spring having one end connected to the exhaust pipe and the other end connected to the partition member is a conical coil spring having a coil radius increased toward the lower partition member. The lower end can be provided close to the liquid passage gap, so that the minute liquid reaching the upper surface of the partition member can easily flow into the liquid storage chamber through the liquid passage gap, and the minute liquid becomes a gas. The excellent effect of being caught up again and not carried out to the outlet is produced.

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

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. The casing is formed by welding the inlet / outlet member 2 and the bottom lid 3 to the main body 1. The inlet / outlet member 2 has an inlet 4 and an outlet 5 on the left and right sides, and an inlet flange 6 is welded to the inlet 4 and an outlet flange 7 is welded to the outlet 5. The bottom cover 3 has a drain port 8 at the center of the lower end, and a drain tube 9 is welded to the drain port 8. The main body 1 is cylindrical and has a large diameter on the upper inner surface. A double substantially cylindrical exhaust pipe 10 is placed on an annular step between the upper inner surface and the lower inner surface of the main body 1, and the exhaust pipe 10 is fixed between the inlet / outlet member 2. The outer cylinder of the exhaust pipe 10 is straight and formed lower than the inner cylinder. The outer cylinder can be omitted, and the main body 1 can also be used. The inner cylinder of the exhaust pipe 10 has a shape in which the upper part is gently expanded. 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 inner side of the inner cylinder of the exhaust pipe 10 is connected to the upper outlet 5. A swirl chamber 14 is formed between the lower inner surface of the main body 1 and the inner surface of the bottom lid 3, 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 drainage port 8. The lower end of the inner cylinder of the exhaust pipe 10 is welded with the upper end of the conical coil spring 16 whose coil radius is increased toward the lower partition wall member 17, and the swirl chamber 14 and the liquid reservoir chamber 15 are connected to the lower end of the conical coil spring 16. The separating partition member 17 is welded. The partition member 17 has a disk shape and has four protrusions 18 on the outer periphery. 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 main body 1. The partition member 17 is displaced downward by overcoming the elastic force of the conical coil spring 16 when the flow velocity is high, and is displaced upward by the elastic force of the conical coil spring 16 when the flow velocity is slow. The lower end of the conical coil spring 16 is provided close to the liquid passage gap 19.

The gas containing liquid entering from the inlet 4 is swirled by the swirl vanes 12. The liquid is swung out and separated by the action of centrifugal force, flows down along the inner peripheral wall of the main body 1, and flows into the liquid reservoir 15 through the liquid passage gap 19 between the protrusions 18. The liquid that has flowed into the liquid storage chamber 15 is discharged out of the system from the liquid discharge port 8. The gas that has passed through the lower end of the exhaust pipe 10 flows out from the outlet 5 through the inside of the inner cylinder of the exhaust pipe 10.

The minute liquid swirling from the center of the swirl chamber 14 is separated by colliding with the conical coil spring 16 disposed between the exhaust pipe 10 and the partition wall member 17, and flows down along the conical coil spring 16. Since it flows into the liquid reservoir chamber 15 through the liquid passage gap 19, it can be prevented that the liquid is entrained again and carried to the outlet 5. In addition, when the flow velocity is high, the partition member 17 is displaced downward by overcoming the elastic force of the coil spring 16, so that the flow velocity of the gas that collides with the upper surface of the partition member 17 and rebounds can be reduced. It is possible to prevent the minute liquid flowing down near the upper surface of the partition wall member 17 from being re-wound into the gas and carried out to the outlet 5. When the flow rate is low, the partition member 17 is displaced upward by the elastic force of the coil spring 16, so that the liquid reservoir 15 can be widened.

INDUSTRIAL APPLICABILITY The present invention is used for 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 causing a swirl flow in the casing and centrifugal force. Can do.

DESCRIPTION OF SYMBOLS 1 Main body 2 Entrance / exit member 3 Bottom cover 4 Inlet 5 Outlet 8 Drain outlet 10 Exhaust pipe 11 Annular space 12 Swivel blade 14 Swivel chamber 15 Reservoir chamber 16 Conical coil spring 17 Partition member 18 Protrusion 19 Liquid passage gap

Claims (1)

The swirl vanes in the annular space formed by the casing and the exhaust pipe is arranged, connecting the upper side of the annular space at the entrance, connecting the upper to the outlet through the inner hole of the exhaust pipe, pivoted downwardly of the annular space forming a liquid reservoir chamber to lower chamber and said pivot chamber connecting the lower end of the liquid reservoir chamber to drain port, a partition member disposed between said liquid reservoir and said swirling chamber, said partition member be one obtained by forming a gap for the liquid passage between the inner wall of the outer periphery and said casing, at one end a concatenation of the partition wall member to the other end of the coil spring coupled to the exhaust pipe, liquid, wherein the coil spring is a conical coil spring coil radius is increased toward the gap direction of the liquid passage between the inner wall of the outer edge and the casing of the partition member of the lower Separator.

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