KR200157842Y1 - Automatic valve - Google Patents

Abstract

The present invention relates to a valve device that is automatically opened and closed by the unbalanced pressure of the fluid, in particular the valve seat 20, the stopper 21, the guide 33 is formed therein, the top of the port 5 dissipation valve A dissipation pipe 42 having a 43 is provided, and a valve disk 30 connected to the piston 32 and the shaft 31 for opening and closing the valve seat 20 while moving up and down along the guide 33 is provided. A valve body 15 having a bearing brace 34 formed therein so that the bearing 35 protruding by the spring 36 embedded in the piston 32 may be fixed to the guide 33. A pressure regulator 17 connected to the inlet side of the valve 15 and provided with pressure regulators 11a, 11b and orifices 10a, 10b, and an upper portion of the port 5 of the valve body 15; Unbalance of fluid, characterized in that it consists of a pressure equalizing tube 40, which is connected between the pressure regulator 17, and is equipped with a pressure equalizing valve 41. It relates to a valve device that opens and closes automatically by pressure.

Description

Valve device automatically opened and closed by unbalanced pressure of fluid

1 is a cross-sectional view of an automatic valve device according to the present invention.

2 is a schematic view of the piping of the high pressure water tank equipped with the automatic valve device according to the present invention.

* Explanation of symbols for main parts of the drawings

1: high pressure water tank 1a: steam piping

1b: water pipe 2: water gauge

3: 1st manual shutoff valve 4: 2nd manual shutoff valve

5: port 6: automatic shutoff valve

7: chain valve 8: flange

10a, 10b: Orifice 11a, 11b: Pressure regulator

15 valve body 17 pressure adjustment unit

20: valve seat portion 21: stopper

29: opening and closing hole 30: valve disc

31 valve disc shaft 32 piston

33: guide 34: bearing latch

35: bearing 36: spring

40: equalization pipe 41: equalization valve

42: discharge pipe 43: discharge valve

The present invention relates to a valve device that opens and closes automatically by an unbalanced pressure of a fluid, and more particularly, to a valve device that opens and closes automatically by an unbalanced pressure of a fluid that can be opened and closed automatically using an unbalanced pressure of a fluid flowing in a pipe. will be.

Generally, as shown in FIG. 2, a water gauge 2 of a glass product is installed in the high pressure water tank 1 so that the water level in the water tank can be checked on-site at the same pressure of water and steam. First and second manual shut-off valves (3) (4) and valves (7) for maintaining the pressure of the upper and lower parts of the water gauge at the same constant pressure are installed to open and close the fluid (steam, water) flowing from the water tank to the water gauge. do.

Conventionally, when the water gauge (2) made of glass is broken for easy identification, the high temperature and high pressure fluid is dissipated to the outside, and the first and second manual shut-off valves (3) and (4) to block the dissipating fluid. However, there is a risk of a worker's safety accident due to the dissipating fluid, and problems such as breakdown of a pressure temperature gauge and a field surveillance camera, which are close facilities, occur.

The present invention solves the conventional problems as described above to provide a valve device that is automatically opened and closed by the imbalance pressure of the fluid that can automatically block the flow of fluid during water gauge breakage to prevent human safety accidents and damage to physical equipment Has its purpose.

In order to achieve the above object, the present invention has a valve seat, a stopper, and a guide formed therein, and a dissipation pipe having a discharge valve is installed at an upper portion of the port, and the valve seat is opened and closed while moving up and down along the guide. A valve disc connected to the piston and the shaft is built in, and the guide is connected to a valve body having a bearing brace so that a bearing protruding by a spring embedded in the piston is fixed, and an inlet side of the valve body. A valve device that is automatically opened and closed by the unbalanced pressure of the fluid, characterized in that it consists of a pressure adjusting unit provided with an orifice, and the upper part of the port of the valve body and the pressure adjusting unit, and a pressure equalizing tube equipped with a pressure equalizing valve. To provide.

The present invention will be described in detail with reference to the drawings.

The present invention is installed between the secondary manual shut-off valve 4 and the chain valve 7 installed on the steam pipe 1a and the water pipe 1b as shown in FIGS. 1 and 2.

Port (5) is installed in the upper part of the valve for the automatic opening and closing of the valve (6) is connected to the pipe by using the flange (8), the circular plate is formed in the center hole is formed in the portion where the port and the flange is coupled Fix the built-in stopper.

On the other hand, the lower side is fixed to the periphery of the opening and closing hole 29, the upper side of the cylindrical valve seat portion 20 is in contact with the lower surface of the stopper, a pair of holes 22 are formed in the left and right direction at the lower periphery, the inner peripheral portion The valve disk 30 is built in to enable the vertical movement.

The guide 33 of the cylindrical tube which is built in the inner peripheral portion of the port 5 and whose lower surface is attached to the upper surface of the stopper 21 is a bearing latch 34 which is a pair of half moon-shaped grooves which are symmetrically processed in the inner peripheral portion thereof. Is formed.

At this time, the piston 32 is built in the guide 33 so as to be able to move up and down to form a pair of long grooves in the left and right symmetry of the upper peripheral portion therein the spring 36 therein, bearing one end of the spring (35) To make contact with the inner circumference of the bearing and guide.

Here, the valve disc shaft 31 installed through the center hole of the stopper 21 has an upper end coupled with the lower surface of the piston 32, and a lower end coupled with the upper surface of the valve disk 30.

On the other hand, the dissipation pipe 42 in which the valve 43 is installed is coupled to the upper right side of the port 5, and the equalizing pipe 40 in which the valve 41 is installed is one side coupled to the upper left side of the port, and the second manual The other side is coupled to the rear pipe of the pipe (4).

The orifices 10a and 10b embedded in the pipe between the equalization pipe 40 and the opening / closing hole 29 are fixed to be spaced up and down, and the pressure regulators 11a and 11b are symmetrically piped up and down with the orifice. To penetrate through

An operation of the automatic valve device according to the present invention will be described with reference to FIGS. 1 and 2.

The present invention locks the pressure equalizing valve 41 at the time of initial ventilation, opens the dissipation valve 43 to dissipate the pressure in the pot 5, and orifices 10a and 10b for depressurizing the high pressure fluid. The pressure of the fluid passing through the orifice is adjusted by adjusting with (11a) (11b).

At this time, the high pressure fluid passing through the orifices 10a and 10b is pushed up the valve disk 30 to pass through the valve seat 20, and then reaches the water gauge 2 to check the water level of the high pressure water tank 1. It becomes possible.

And the valve disc 30, which is lifted by the high pressure fluid is moved only to the stopper 21, at which time the piston 32 is stopped at the bearing latch 34 of the guide 33.

Here, after the fluid of the high pressure water tank 1 passes through the water gauge 2, the dissipation valve 43 is locked to maintain the pressure in the port 5 equal to the pressure of the high pressure water tank, and the equalization valve 41 is left open. .

On the other hand, if breakage of the water gauge occurs during fluid flow to the water gauge 2, the pressure between the pressure regulator 11 and the water gauge is reduced and eventually the fluid pressure in the port 5 is higher than the pressure of the water gauge, so that the piston 32 is lowered. As a result, the valve disc 30 blocks the pipe to block the flow of the fluid.

At this time, the fluid pressure between the rear portion (11a) of the pressure regulator and the valve disk 30 increases over time but does not exceed the pressure in the port (5), so that the piston maintains its original position so that the valve disk (30) Does not open, and eventually the fluid continues to be blocked.

The present invention can prevent the safety of human safety accidents and damage to physical facilities by automatically blocking the flow of fluid when water gauges break open, it is possible to operate a stable facility.

Claims (1)

The valve seat 20, the stopper 21, and the guide 33 are formed therein, and a dissipation pipe 42 having a dissipation valve 43 is provided above the port 5, and the guide 33 is provided. A valve disk 30 connected to the piston 32 and the shaft 31 to open and close the valve seat 20 while moving up and down along the same is built in, and the guide 33 has a spring 36 embedded in the piston 32. Is connected to the valve main body 15 having the bearing latch 34 formed thereon, and the inlet side of the valve main body 15 so that the bearing 35 protruding by the " A pressure regulator 17 provided with orifices 10a and 10b and an upper portion of the port 5 of the valve body 15 and the pressure regulator 17, and a pressure equalizing valve 41 Valve device that is automatically opened and closed by the unbalanced pressure of the fluid, characterized in that composed of the equalizing pipe (40).