KR101354920B1 - High velocity pressure valve - Google Patents

Abstract

The present invention relates to a high-speed pressure valve, and more particularly, to install and increase the closing speed increasing means so that the elastic force acts in the direction of closing the high-speed pressure valve to the disk and the shaft to move up and down in accordance with the pressure in the storage tank By setting the set pressure (valve opening setting) in the tank using only the magnetic force of the first and second magnetic force generating members, the valve opens very quickly compared with the structure of setting the valve opening setting depending on the magnetic force and the separate weight (weight) member. Therefore, it is possible to reduce the risk of explosion due to excessive rise of pressure in the storage tank, and in particular, when the valve is closed after opening, a large amount of VOC gas (volatile organic compound) is discharged to the outside as it is quickly closed by the closing speed increasing means. It can prevent the environmental pollution, and through the pressure control means for adjusting the gap of the first and second magnetic force generating member Group relates to a high-speed pressure valves that can be adjusted easily by setting the pressure in the storage tank.

Description

High velocity pressure valve

The present invention relates to a high-speed pressure valve, and more particularly, to provide a closing speed increasing means so that the elastic force acts in the direction of closing the valve with respect to the disk and the shaft to move up and down in accordance with the pressure in the storage tank, It relates to a high speed pressure valve in which a set pressure (valve opening setting) is set using only the magnetic force of the first and second magnetic force generating members.

Generally, the pressure inside the storage tank in which toxic and flammable liquids are stored continues to fluctuate even when all the facilities included in the tank are operating normally. When an emergency such as a fire occurs, the internal pressure fluctuates rapidly And there is a danger such as tank explosion.

A normally functioning tank system is a system in which liquid is supplied to a storage tank or liquid is discharged from a storage tank. When the internal pressure fluctuates and the storage tank receives heat from the surroundings, such as the radiant heat of the sun, The pressure fluctuates.

When the liquid is discharged, a vacuum is generated inside the storage tank. In addition, when the storage tank receives heat, the pressure rises due to the evaporation of the liquid or the like, and when the heat is taken away, the internal pressure is lowered due to condensation of the gas or the like.

In addition to the normal pressure fluctuation described above, sudden pressure fluctuations may occur due to the following factors in the above-described tank system.

That is, a fire around the storage tank, an equipment failure such as a pump connected to the storage tank, an interruption of power supply to drive the equipment, a deficiency of the fluid level control device, a failure of the control valve connected to the storage tank, Defects in the exchanger and the occurrence of chemical reactions inside the storage tank affect the pressure fluctuations.

The high-speed pressure valve keeps the pressure inside the tank constant in the oil tanker or chemical tank vessel transporting crude oil and chemicals, prevents the outside flame from entering the tank, prevents large fire explosion accident, (Volatile organic compounds) generated in the VOC gas.

If the Korean Patent Publication No. 10-2004-0012859 is disclosed as an example of the pressure valve, it will be briefly described with reference to FIG.

The pressure valve includes a valve housing (1) connected to a storage tank, a connecting member (6) installed in the valve housing (1) so as to be able to move up and down, A magnetic body 9 coupled to the lower end of the connecting member 6 and a valve body 7 connected to an upper end of the connecting member 6 and opening and closing the upper opening of the valve housing 1, A lifting plate 21 formed on the connecting member 6 and a weight member 12 formed on the connecting member 6 on the lifting plate 21.

An actuator unit 4 is provided in the valve housing 1 below the magnet 8 and connected to a handle (not shown) provided outside the valve housing 1 . The actuator unit 4 actuates the magnetic body 9 and the connecting member 6 and the valve body 14 by the actuating unit 4 so as to move the actuator unit 4 upward at a predetermined angle. So that the valve housing 1 is opened. In other words, the operator can directly open the valve housing 1 to prevent the pressure in the storage tank from rising sharply.

When the pressure in the storage tank rises above a preset value, the valve body 14 is lifted to open the valve housing 1. At this time, the pressure exerted from the storage tank is applied to the lifting plate 21, So that the valve body 14 can be opened quickly, and the flow rate (gas) in the storage tank is quickly discharged.

However, in the conventional pressure valve, the valve body 14 is quickly opened by the lifting plate 21 to rapidly discharge a large amount of gas. On the other hand, The VOC gas (volatile organic compound) in the storage tank is discharged to the outside of the valve body 14 if the valve body 14 is not closed quickly, . ≪ / RTI >

In addition, the pressure valve is to set the set pressure in the storage tank by the magnetic force between the magnet (8) and the magnetic body (9) and the weight (load) of the weight member 12, that is, the magnetic force and the separate weight The member (load) 12 is set to open the valve, in which the weight member 12 has the same force at any height, so that the magnet 8 and the magnet 8 are finally opened in the process of opening the valve body 14. Even if the magnetic body 9 is spaced apart and the magnetic force is suddenly dissipated, the weight of the weight member 12 continuously acts, so that the valve body 14 slowly rises to the maximum opening position, which takes a long time until the maximum opening. There is a problem, and in this process, the pressure in the storage tank can rise excessively, there is a problem that the risk of explosion remains.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide a closing speed increasing means so that an elastic force acts in a direction of closing a high speed pressure valve with respect to a disk and a shaft which is raised and lowered according to the pressure in the storage tank. By setting the set pressure (valve opening setting) using only the magnetic force of the first and second magnetic generating members, the valve is opened very quickly compared to the structure in which the valve opening setting is made depending on the magnetic force and the separate weight (weight) member. Reduces the risk of explosion due to excessive rise in pressure in the tank, and prevents large amounts of VOC gas (volatile organic compounds) from being released to the outside as it is quickly closed by the closing speed increasing means, especially when the valve is closed after opening. Environmental storage can be reduced, the storage tank through the pressure control means for adjusting the gap between the first and second magnetic force generating member It is to provide a high speed pressure valve that can easily adjust the set pressure in the tank.

The present invention for achieving the above object, in the high-speed pressure valve is connected to one side of the storage tank in which the various fluids are stored to control the pressure in the storage tank, connected to the storage tank and the gas discharge at the top An additionally formed body, a first magnetic force generating member installed on a first support portion formed on an inner surface of the body and generating a magnetic force, a shaft mounted on a second support portion formed on an inner surface of the body and capable of lifting up and down; A second magnetic force generating member which is installed at a lower end of the shaft and generates mutual magnetic force with respect to the first magnetic force generating member, and is mounted on the upper end of the body and is connected to the shaft and ascends and descends together with the shaft. Installed so that the elastic force acts on the disk to open and close the gas discharge portion of the body, and the disk and the shaft to move up and down Air, characterized by consisting, including closing speed increasing means for the disc to be quickly closed by the spring force when closing the gas discharge portion.

The present invention provides a closed pressure increasing means (coil spring) so that the elastic force acts in the direction of closing the high speed pressure valve with respect to the disk and the shaft which is raised and lowered according to the pressure in the storage tank, and the set pressure setting in the storage tank (valve By setting the opening setting using only the magnetic force of the first and second magnetic force generating members, the valve is opened very quickly compared to the structure of setting the valve opening setting depending on the magnetic force and the separate weight (weight) member, so that the pressure in the storage tank Reduces the risk of explosion due to excessive rise, and reduces the environmental pollution by preventing the large amount of VOC gas (volatile organic compounds) to be released to the outside, especially as the valve is quickly closed by the closing speed increasing means when the valve is opened and then closed. Can be.

In addition, by providing a pressure adjusting means for adjusting the gap between the first and second magnetic force generating member, it is possible to easily adjust the set pressure in the storage tank.

1 is a cross-sectional view showing a conventional pressure valve,
2 is a cross-sectional view showing a closed state of the high speed pressure valve according to the present invention;
3 is a cross-sectional view showing an open state of a high speed pressure valve according to the present invention;
4 is a cross-sectional view illustrating a case where a gap between the first and second magnetic force generating members is spaced through the pressure adjusting means in the high speed pressure valve according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown, the high-speed pressure valve 100 according to the present invention is connected to the opening of one side of the storage tank 101 in which various fluids are stored to efficiently solve the pressure or vacuum in the storage tank 101 to the storage tank 101 is a device for safely protecting.

The high speed pressure valve 100, the body 110, the first magnetic force generating member 120, the shaft 140, the second magnetic force generating member 130, the disk 150, the closed speed increase Means 160.

The body 110 is formed in a hollow shape, is connected in communication with the upper opening of the storage tank 101, the lower end of the body 110 is coupled to the opening of the storage tank 101, the sea of The gas discharge unit 111 is formed at the upper end.

In addition, the body 110 may be formed as a single body, but a plurality of bodies may be assembled as shown in the drawing.

On the other hand, the communication hole 112 is formed on the side of the body 110, the vacuum hole (not shown) is installed in the communication hole 112 for releasing the vacuum when a vacuum occurs in the storage tank 101 do.

The vacuum valve is a valve that operates to maintain a closed state when a pressure occurs in the storage tank 101 and to open only when a vacuum occurs.

In addition, the first magnetic force generating member 120 is installed on the first support part 115 formed on the inner surface of the body 110 to generate magnetic force.

The first support portion 115 is formed to extend from the inner surface of the body 110 toward the center of the body 110, the first magnetic force generating member 120 is located in the center of the body 110 and In addition, it is fixedly coupled to the upper side of the first support (115).

Here, the first magnetic force generating member 120 and the second magnetic force generating member 130 to be described later may be all composed of a permanent magnet to generate a magnetic force attracted to each other, or the first magnetic force generating member 120 and the first One of the two magnetic force generating member 130 may be composed of a permanent magnet and the other may be composed of a magnetic material.

The shaft 140 is installed on the second support portion 116 formed on the inner surface of the body 110 so as to be vertically movable.

The second support part 116 is formed at a position spaced apart at a predetermined interval above the first support part 115 and is disposed at the center of the body 110 to support the shaft 140 to be lifted up and down. It consists of a support member 116a and a plurality of connection members 116b connecting the support member 116a and the inner surface of the body 110.

On the other hand, the shaft 140 and the first magnetic force generating member 120 is installed concentrically.

In addition, a predetermined portion of the outer peripheral surface of the shaft 140, the thread portion 141 is formed so that the elastic force adjustment nut 165 to be described later can be screwed.

In addition, the upper end of the shaft 140 passes through the center of the disk 150 and the regulator 181 which will be described later to protrude to the upper side of the regulator 181.

The second magnetic force generating member 130 is fixedly installed at the lower end of the shaft 140 and generates magnetic force attracted to each other with respect to the first magnetic force generating member 120.

The second magnetic force generating member 130 is disposed above the vertical direction of the first magnetic force generating member 120 and is disposed concentrically with the first magnetic force generating member 120.

In addition, the disk 150 is seated on the upper end of the body 110 and is connected to the shaft 140, while lifting up and down with the shaft 140, the gas discharge portion 111 of the body 110 ) Will be opened and closed.

The disk 150 has an upper end seated on the upper end of the body 110, the lower end is reduced in diameter is inserted into the gas discharge portion 111 to close the gas discharge portion 111.

In addition, the closing speed increasing unit 160 is installed so that an elastic force acts on the elevating disk 150 and the shaft 140 so that the disk 150 closes the gas discharge unit 111. It is to be quickly closed by the elastic force.

The closed speed increasing means 160 is provided between the elastic force adjusting nut 165 which is screwed to the threaded portion 141 of the outer circumferential surface of the shaft 140, and the elastic force adjusting nut 165 between the second supporting portion 116. The coil spring 161 is installed.

At this time, the coil spring 161 is composed of a compression coil spring is installed to be fitted to the outer peripheral surface of the shaft 140.

Therefore, when the shaft 140 and the disk 150 are raised to open the high speed pressure valve 100, the coil spring 161 is compressed and the high pressure pressure valve 100 is closed. When the shaft 140 and the disk 150 are lowered, the coil spring 161 is restored so that the elastic force acts in the closing direction (lower direction) and closes quickly.

Here, the coil spring 161 is preferably installed to be in an uncompressed state when the disk 150 is in a state in which the gas discharge unit 111 is closed. That is, in the present invention, when the set pressure in the storage tank 101 is set (valve open setting), the magnetic force between the first and second magnetic force generating members 120 and 130 is set to the maximum, so that the high pressure valve 100 may be set. Is not compressed when the coil spring 161 is in a closed state, the elastic force does not work, which is when the valve opening setting using the magnetic force between the first and second magnetic generating members (120,130) of the coil spring (161) It is not affected.

In addition, the coil spring 161, so that the high-speed pressure valve 100 can be opened quickly, it is preferable that the elastic force does not significantly act when the shaft 140 and the disk 150 is raised. To this end, the elastic force of the coil spring 161 may be considerably smaller than the magnetic force between the first and second magnetic force generating members 120 and 130.

In other words, the coil spring 161 may only perform a role of closing the high speed pressure valve 100 after the high speed pressure valve 100 is opened so that an elastic force is applied to the coil spring 161.

That is, the coil spring 161 is the shaft until the magnetic force that is attracted to each other between the first and second magnetic force generating members 120 and 130 when the high-speed pressure valve 100 is opened and starts the closing operation. Push 140 to the elastic force to be closed quickly.

In the above description, only the case where the compression coil spring is installed between the elastic force adjusting nut 165 coupled to the shaft 140 as the closed speed increasing means 160 and the second support part 116 is described. Not limited to this, since the closing speed increasing means 160 only needs to act on the elastic force that allows the high-speed pressure valve 100 to close quickly, it may be installed inside or outside the body 110, and also installed. Depending on the location, a variety of springs can be used to exert elastic forces as well as compression coil springs or tension coil springs.

Meanwhile, in the case of the conventional pressure valve, although the set pressure in the storage tank is set (valve opening setting) by using a magnetic force and a separate weight member (load), in the present invention, the magnetic force between the first and second magnetic force generating members 120 and 130 is used. It is easy to set because it uses only the maximum setting. Of course, the shaft 140 and the disk 150, but there is its own load, which is difficult to adjust the load freely, so the present invention does not have a substantial weight member for the valve opening setting.

As described above, the present invention is to set the set pressure (valve opening setting) in the storage tank 101 by the magnetic force between the first and second magnetic force generating members 120 and 130.

In addition, when the pressure in the storage tank 101 rises above a set value, the high-speed pressure valve 100 is opened, so that the disk 150 can quickly open the gas discharge section 111, The shaft 140 is coupled to the lifting plate 170 to help the lift of the disk 150.

That is, the lifting plate 170 is assembled to be in close contact with the lower side of the elastic force adjustment nut 165 screwed to the outer peripheral surface of the shaft 140, in this case, the shaft 140 of the lower side of the lifting plate 170 Fixing nut 171 for fixing the steel plate 170 is screwed.

Therefore, when the pressure in the storage tank 101 rises above the set value, the shaft 140 and the disk 150 rise and start to open the gas discharge portion 111, wherein the storage tank 101 The pressure is discharged from the lifting plate 170 is to push upward to help to open more quickly.

On the other hand, in order to secure the disadvantage that the closing of the high speed pressure valve 100 due to the elevating plate 170, the coil spring 161 which is the closed speed increasing means 160 is installed, the high speed pressure valve When the closing of the 100 is used because the elastic force of the coil spring 161 is to be quickly closed.

Then, the disk 150, the pressure to adjust the set pressure in the storage tank 101 by adjusting the gap (S) between the first magnetic force generating member 120 and the second magnetic force generating member 130. The adjusting means 180 is provided.

The pressure regulating means 180 is provided with a screw portion 181a formed on an outer circumferential surface of the regulator 181, which is screwed to an upper surface of the disk 150, and an upper side of the disk 150 of the regulator 181. The first lock nut 182 is screwed to the outer circumferential surface to prevent loosening of the regulator 181, and disposed above the regulator 181 and penetrates the disk 150 and the regulator 181 to pass through the regulator 181. A second lock nut 183 is screwed to the upper end of the shaft 140 protruding upward of the shaft 140 to fix the shaft 140, and the shaft 140 is rotated through the rotation of the regulator 181. It is made to adjust the gap (S) between the first magnetic force generating member 120 and the second magnetic force generating member 130.

That is, when the regulator 181 is rotated, the regulator 181 is raised or lowered in the axial direction on the disk 150. At this time, when the regulator 181 is raised, the shaft 140 is also accompanied. Since the gap (S) between the first and second magnetic force generating members (120,130) is increased, and if the regulator 181 is lowered, the shaft (140) is also lowered together. The gap S between the generating members 120 and 130 is reduced.

As shown in FIG. 2, when the regulator 181 is completely lowered, the first and second magnetic force generating members 120 and 130 are in close contact with each other, and the first and second magnetic force generating members 120 and 130 are pulled out. The pulling force is the largest.

As such, when the first and second magnetic force generating members 120 and 130 are in close contact with each other, the set pressure in the storage tank 101 may be set to the greatest value, and the regulator 181 may be adjusted as shown in FIG. 4. By adjusting the gap (S) between the first and second magnetic force generating members (120, 130) through it can adjust the set pressure in the storage tank (101). For example, as the gap S between the first and second magnetic force generating members 120 and 130 is gradually increased, the magnetic force attracted between the first and second magnetic force generating members 120 and 130 is gradually decreased, and thus the inside of the storage tank 101 may be reduced. The set pressure is gradually set smaller.

Meanwhile, after adjusting the regulator 181 and setting the set pressure in the storage tank 101 (valve opening setting), the first lock nut 182 is screwed to prevent loosening of the regulator 181. do.

As described above, the coil spring 161 is installed in an uncompressed state when the high speed pressure valve 100 is closed, but the coil spring 161 is adjusted by adjusting the elastic force adjusting nut 165. When the coil is installed in a compressed state, the coil spring 161 keeps pushing the shaft 140 and the disk 150 downward (close direction), so that the first and second magnetic force generating members ( Only when the set pressure in the storage tank 101 is set by the magnetic force between 120 and 130, the set pressure of the storage tank 101 can be set larger.

As such, the regulation of the regulator 181 is used when the set pressure in the storage tank 101 is to be largely adjusted, and the adjustment of the elastic force adjusting nut 165 finely sets the set pressure in the storage tank 101. It can be used when you want to adjust it.

In addition, a protective cover 195 is seated and installed on the upper side of the disk 150 to protect the regulator 181, and the protective cover 195 may be fixed to an outer circumferential surface of the regulator 181. Guide member 190 is screwed.

In this case, a guide 191 penetrating the protective cover 195 is formed at an upper end of the guide member 190, and a nut 192 is formed at an upper end of the guide 191 at an outer side of the protective cover 195. Is coupled to prevent the departure of the protective cover 195.

Hereinafter, the operation of the high speed pressure valve 100 according to the present invention will be described.

end. When the high speed pressure valve 100 is opened,

First, when the pressure in the storage tank 101 is increased above the set value, the first and second magnetic force generating members 120 and 130 which are in close contact with each other by magnetic force are spaced apart, and the shaft 140 and the disc ( 150 rises, and the disc 150 quickly opens the gas exhaust 111 of the body 110.

In addition, since the lifting plate 170 is pushed up when the pressure in the storage tank 101 is discharged, the high speed pressure valve 100 is opened more quickly.

As such, when the high speed pressure valve 100 is opened quickly, the VOC gas (volatile organic compound) generated in the storage tank 101 is quickly discharged to the outside through the gas discharge unit 111, The pressure in the storage tank 101 is dropped to prevent an explosion accident.

On the other hand, when the shaft 140 and the disk 150 are raised to open the high speed pressure valve 100, the coil spring 161 is in a compressed state.

I. When closing the high speed pressure valve 100,

When the high speed pressure valve 100 is opened and the pressure in the storage tank 101 drops, the high speed pressure valve 100 is quickly closed to prevent a large amount of VOC gas from being discharged to the outside.

That is, when the high speed pressure valve 100 is opened, the coil spring 161 is in a compressed state. When the pressure in the storage tank 101 drops below a set value, the coil spring 161 is depressed. The shaft 140 is pushed downward by the elastic force generated while being restored. At this time, the shaft 140 is pushed to the extent that the magnetic force applied between the first and second magnetic force generating members 120 and 130 acts.

In other words, the shaft 140 and the disk 150 are quickly lowered by the elastic force of the coil spring 161, and the second magnetic force generating member 130 descending together with the shaft 140 is the first When the first magnetic force generating member 120 is lowered to within the range of the magnetic force acting, the first and second magnetic force generating members 120 and 130 are attracted to each other quickly and close contact with the disk 150 gas The outlet 111 is to be closed quickly.

100: high speed pressure valve 110: body
111: gas discharging portion 115: first supporting portion
116: second support portion 120: first magnetic force generating member
130: second magnetic force generating member 140: shaft
150: disc 160: closing speed increase means
161: coil spring 165: elastic force adjusting nut
170: lifting plate 171: fixing nut
180: pressure regulating means 181: regulator
182: first lock nut 183: second lock nut
190: guide member 191: guide
192: nut 195: protective cover

Claims (7)

In the high-speed pressure valve is connected to one side of the storage tank 101 in which various fluids are stored to control the pressure in the storage tank 101,
The body 110 is connected to communicate with the storage tank 101 and the gas discharge part 111 is formed at the upper end thereof.
A first magnetic force generating member 120 installed on the first support portion 115 formed on the inner surface of the body 110 to generate magnetic force;
A shaft 140 installed on the second support portion 116 formed on the inner surface of the body 110 so as to be vertically movable,
A second magnetic force generating member 130 installed at a lower end of the shaft 140 and generating magnetic forces attracted to each other with respect to the first magnetic force generating member 120;
The disk 150 is mounted on the upper end of the body 110 and connected to the shaft 140, the disk 150 for opening and closing the gas discharge portion 111 of the body 110 while moving up and down with the shaft 140; ,
Closed speed increasing means is installed so that the elastic force acts on the elevating disk 150 and the shaft 140, so that the disk 150 is quickly closed by the elastic force when closing the gas discharge portion 111 Consisting of 160,
The disk 150, the pressure control means to adjust the set pressure in the storage tank 101 by adjusting the gap (S) between the first magnetic force generating member 120 and the second magnetic force generating member 130 180 is provided,
The pressure adjusting means 180, the regulator 181 is screwed to the upper side of the disk 150, and the regulator 181 is screwed to the outer peripheral surface of the regulator 181 from the upper side of the disk 150 The first lock nut 182 to prevent loosening of the shaft 140 and the shaft 140 which is disposed above the regulator 181 and protrudes upward of the regulator 181 through the disk 150 and the regulator 181. It consists of a second lock nut 183 is screwed to the top of the fixed to the shaft 140, the first magnetic force generating member by moving the shaft 140 in the axial direction through the rotation of the regulator 181 High speed pressure valve, characterized in that to adjust the gap (S) between the 120 and the second magnetic force generating member (130). The method of claim 1,
The closure speed increasing means 160 includes an elastic force adjusting nut 165 screwed on the outer circumferential surface of the shaft 140 and a coil spring 167 provided between the elastic force adjusting nut 165 and the second support portion 116. [ (161). ≪ / RTI > 3. The method of claim 2,
The coil spring 161 is made of a compressed coil spring and the compression coil spring is installed to be in an uncompressed state when the disk 150 is closed in the gas discharge unit 111. High speed pressure valve. The method of claim 1,
When the pressure in the storage tank 101 rises above a set value, the disk 150 helps the disk 150 to rise so that the disk 150 can quickly open the gas discharge part 111. The high speed pressure valve, characterized in that the lifting plate 170 is coupled. delete delete The method of claim 1,
A protective cover 195 is mounted on the upper side of the disk 150 to protect the regulator 181, and a guide member to fix the protective cover 195 to the outer circumferential surface of the regulator 181. High speed pressure valve, characterized in that 190 is screwed.

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