KR101559863B1

KR101559863B1 - Emergency steam discharge apparatus for storage tank

Info

Publication number: KR101559863B1
Application number: KR1020150065494A
Authority: KR
Inventors: 정화직
Original assignee: (주) 한국철력
Priority date: 2015-05-11
Filing date: 2015-05-11
Publication date: 2015-10-13

Abstract

The present invention relates to an emergency depressurization device for a storage tank. The emergency depressurization device for a storage tank comprises: a coupling body installed in the upper part of a storage tank to be communicated and having an outlet formed in the upper part and a hinge part formed in one side of the outer circumference; a sealing packing installed in the outlet of the coupling body; a disk mounted on the top of the sealing packing; a fixing ring fixed to the disk; a fixing plate fixed to the fixing ring; a compression member having one end coupled to the hinge part of the coupling body by a hinge shaft and being attached to the top surface of the fixing plate; and a fixing unit to fix the compression member and the fixing plate. The disk has a mounting groove curved upward at a position corresponding to the sealing packing. The present invention prevents a gap between the disk and the outlet caused when the disk is shaken by the compression force continuously received in a process of opening the outlet and the internal pressure of the tank by installing the compression member on one side surface of the coupling body coupled to the upper part of the tank to be communicated by a hinge and mounting the fixing unit to firmly fixate the compression member and the disk, thereby constantly maintaining the internal pressure and preventing accidents like an explosion, a fire, and the like beforehand by quickly discharging oil mist when the internal pressure is rapidly changed.

Description

Technical Field [0001] The present invention relates to an emergency pressure discharge apparatus for a storage tank,

The present invention relates to an emergency pressure discharge device for a storage tank, and more particularly, to an emergency pressure discharge device for a storage tank, which is installed in a tank in which various fluids or chemicals are stored, The present invention relates to an emergency pressure discharge device for a storage tank capable of preventing a safety accident such as an explosion accident or a fire due to a sudden pressure change by controlling a pressure state in a storage tank.

Generally, tanks that store flammable materials with high risk of fire are equipped with pressure control valves that maintain the internal pressure of the tank at a constant pressure at all times and emergency discharge valves that can discharge a large amount of gas from the tank into the atmosphere in case of fire or other emergency. Are respectively installed at the upper ends of the tanks.

At this time, the construction of the emergency discharge valve will be briefly described. First, Teflon, which can maintain the airtightness, is seated on the upper surface of the body having the normal cylindrical shape. A cover is installed on the upper surface of the Teflon, and a weight capable of supporting the pressure inside the tank is seated on the cover.

A guide plate is installed to intersect the inside of the body. The guide plate is bolted to the weight so as to prevent the weight from being biased to one side due to the pressure inside the tank. Further, a horizontal bar passes through the guide plate and is inserted into the above-mentioned body. The horizontal bar serves to prevent the weight from being lifted above a certain height.

However, in the case of the emergency discharge valve constructed as described above, there is a problem that the gas flows out due to the pressure inside the tank.

In order to solve the above-mentioned problem, there has been introduced, as prior art, a registered utility model No. 0125817 "valve device for air intake and exhaust of oil and chemical material transfer tanks".

The valve device is provided with a cover which is hinged to the upper part of the pressure valve casing and which is pressed against the cover, an operating body which is fixedly coupled to the guide bar, A gasket for opening and closing the internal pressure discharge portion is provided on the pressure valve.

However, in the above-described structure, when adjusting the internal pressure of the pressure valve, there is a gap in a portion where the internal pressure discharge portion and the gasket come into contact with each other due to a pressure change therein, In addition, sudden pressure changes cause safety accidents such as explosion and fire.

Registration Utility Model No. 0125817 "Valve unit for air intake and exhaust of oil and chemical material transfer tanks"

SUMMARY OF THE INVENTION In order to solve the above-described problems, an object of the present invention is to provide a hinge-type pressure member on one side of a coupling connected to an upper portion of a tank, and fixing means for firmly connecting and fixing the pressing member to the disk, The disk is shaken according to the internal pressure by the hinge action by the hinge action and a gap is formed between the disk and the discharge port to prevent the discharge of the vapor into the gap, When the disk is brought into tight contact with the sealed packing at a constant pressure, it is possible to completely prevent the discharge port from being opened and closed and maintain the internal pressure constant when the oil vapor pressure is within the set range of the internal vapor pressure. By discharging vapor, emergency pressure discharge can be prevented to prevent explosion and fire safety accidents. To provide value.

To achieve the above object, according to the present invention, there is provided a storage tank, comprising: a coupling body formed with a discharge port at an upper portion communicating with an upper portion of a storage tank and having a hinge at one side of an outer circumferential surface thereof; a sealing packing provided at a discharge port of the coupling body; A fixing ring fixedly installed on the upper portion of the fixing ring; a pressing member having one end joined to the hinge portion of the coupling body by a hinge shaft and closely attached to the upper surface of the fixing plate; And a fixing means for connecting and fixing the pressing member and the fixing plate, wherein the disc further comprises a seating groove formed at a position corresponding to the sealing packing, the seating groove being bent upward.

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In addition, the disc may further include a cut-off portion formed in a vertical bending connection with the outer circumferential surface.

The pressing member may further include a horizontal bar hinged to the hinge portion of the coupling at one end thereof, and a wing portion formed at the other end of the horizontal bar.

The apparatus may further include a pressing body formed with a fixing hole on the upper surface of the horizontal bar and fixed to the fixing hole.

Further, the fixing hole is formed as a long hole.

The fixing means may include a fixing piece which is in close contact with the upper surface of the horizontal bar and has an adjusting hole formed at the center of the upper surface thereof and has fixing holes formed on both sides of the adjusting hole, And a bolt.

In addition, the through hole formed through the adjusting hole and the fixing bolt through the horizontal bar is formed as a long hole.

As described above, according to the present invention, a pressing member is provided on one side of a coupling connected to an upper portion of a tank in a hinge manner, and fixing means for firmly connecting and fixing the pressing member to the disk are installed. It is possible to prevent the gap from being generated between the disc and the discharge port due to the disc swinging due to the pressing force and the pressure inside the tank, so that the internal pressure can be kept constant, It is possible to prevent a safety accident such as an explosion and a fire by discharging the vapor.

Brief Description of the Drawings Fig. 1 is an installation view showing that an emergency pressure discharge device of the present invention is installed on a storage tank.
2 is a perspective view showing an emergency pressure discharge device according to the present invention;
3 is an exploded perspective view showing the emergency pressure discharge device according to the present invention.
4 is a partially enlarged view showing the structure of the fixing means of the emergency pressure discharge device according to the present invention.
FIG. 5 is a process diagram showing an operation process of the emergency pressure discharge device according to the present invention. FIG.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

A coupling body 10 having an outlet 11 formed at an upper portion communicating with the upper portion of the storage tank 1 and having a hinge portion 12 formed on one side of the outer peripheral surface thereof, A disk 30 which is seated on the upper part of the sealing packing 20; a fixing ring 40 fixedly installed on the disk 30; A pressing member 60 whose one end is joined to the hinge portion 12 of the coupling body 10 by a hinge shaft 2 and is brought into close contact with the upper surface of the fixing plate 50, And a fixing means 70 connecting and fixing the fixing plate 50. The disc 30 further includes a seating groove 31 formed at a position corresponding to the hermetic packing 20 so as to bend upward, .

Hereinafter, the components and operation of the present invention will be described in detail.

The present invention is largely composed of a coupling 10, a sealing packing 20, a disk 30, a fixing ring 40, a fixing plate 50, a pressing member 60 and fixing means 70.

The coupling body 10 is connected to the upper end of the opening of the storage tank 1 and has a circular outlet 11 at the center and has an engagement hole 71b formed on the upper surface thereof, And the hinge portion 12 is formed so that the pressing member 60 is hinged to one side of the outer circumferential surface.

The hermetically sealed packing 20 is ring-shaped and is provided on the discharge port 11 of the coupling body 10 to perform a sealing function by preventing leakage of gases, liquids, and the like.

The disc 30 is formed in a disc shape and has a plurality of coupling holes 71b arranged around the origin and is vertically bent on the outer circumferential surface to form a blocking portion 32 for blocking external air, A seating groove 31 is formed at a position corresponding to the upper surface of the packing 20 so as to be hermetically sealed so as to prevent the internal pressure from escaping more effectively and the sealing packing 20 is press- , The pressure state inside the storage tank (1), and the air flow.

The fixing plate 50 is formed in the form of a disk and corresponds to a coupling hole 71b formed in the disk 30 in a circular shape and has a coupling hole 71b formed between the coupling holes 71b, Further includes a through hole formed at the center so that the fixing bolt 72 is inserted through the through hole.

The fixing ring 40 has a ring shape having a predetermined thickness and is provided with a coupling hole 71b circularly arranged on the disk 30 and a coupling hole 71b circularly arranged on the fixing plate 50, The fixing plate 50 and the disk 30 are fixed to each other by fixing the respective engaging holes 71b through the fixing member.

The pressing member 60 includes a horizontal bar 61 formed in the horizontal length direction and one end of which is coupled to the hinge portion 12 of the coupling body 10 by a hinge shaft 2, A wing portion 62 is formed on both sides to provide a constant pressing force in the downward direction and a fixing member and a fixing bolt 72 are firmly fixed to the center of the upper surface of the horizontal bar 61 in correspondence with the fixing means 70 And a coupling hole 71b is formed on both sides of the adjustment hole 71a.

By providing the fixing hole 61a on the upper surface of the other end of the horizontal bar 61 and the pressing member 63 having various weights provided by the fixing member on the fixing hole 61a, 1) According to the change in the inner pressure, the weight is selectively installed, thereby providing the advantage that the pressure inside the storage tank (1) can be kept constant.

The fixing means 70 is located in the adjusting hole 71a and the engaging hole 71b formed on the upper surface of the horizontal bar 61 and the adjusting hole 71a and the engaging hole 71b of the horizontal bar 61 And a fixing piece 71 having a control hole 71a and a coupling hole 71b formed at corresponding positions are provided on the upper surface of the horizontal bar 61. The fixing piece 71 surrounds one side of the horizontal bar 61, The fixing hole 71a of the fixing piece 71, the adjusting hole 71a of the horizontal bar 61 and the through hole of the fixing plate 50 are fixed to each other. And a bolt (72).

The adjustment hole 71a of the fixing means 70 and the adjustment hole 71a of the horizontal bar 61 are elongated so that the disc 30 can be precisely fixed to the upper surface of the sealing packing 20 provided at the discharge port 11, Thereby providing an advantage that the airtightness can be maintained more effectively.

As described above, the combining process of the present invention is as follows.

First, in order to fix the fixing ring 40 to the upper portion of the disk 30, bolts are inserted into the engaging holes 71b formed at mutually corresponding positions. Then, both ends of the bolts are fastened with nuts, The fixing ring 40 is fixed and the engaging holes 71b formed at positions corresponding to the fixing plate 50 and the fixing ring 40 are passed through with bolts and then the both ends of the bolts are fastened with nuts, And the fixing ring 40 are fixed.

The through holes formed at the center of the fixing plate 50, the adjusting holes 71a of the horizontal bar 61 and the adjusting holes 71a of the fixing pieces 71 are passed through the fixing bolts 72, respectively, The fixing plate 50, the horizontal bar 61 and the fixing piece 71 are fixed by using a plurality of nuts and the adjusting holes 71a of the fixing pieces 71 and the adjusting holes 71a of the horizontal bars 61 The bolts 71b are inserted through the bolts and then the bolts 71 and the horizontal bars 61 are completely fixed using a plurality of nuts.

The fixing bolts 72 are fixed by using the bolts and the nuts on both sides of the fixed bolts 72 fixedly installed as described above. As the fixing bolts 72 are continuously moved in the process of opening and closing the discharge ports 11, And the hermetic packing 20, so that a certain pressure can not be maintained in the storage tank 1 because the vapor is discharged little by little into the gap.

Hereinafter, the operation of the emergency pressure discharge device for a storage tank constructed as described above will be described.

As shown in Figs. 4 to 5,

When the oil vapor pressure is formed in the storage tank (1) (1) within the set range,

The horizontal bar 61 is rotated upward by the oil vapor pressure around the hinge shaft 2 and the disk 30 on which the upper surface of the hermetic packing 20 is tightly pressed is released and the storage tank 1 , The oil vapor pressure in the storage tank 1 falls below the set range as the oil vapor pressure escapes through the discharge port 11. [

After the above operation, when the vapor pressure is sufficiently exhausted and the oil vapor pressure of the storage tank 1 is lowered, the horizontal bar 61, which has been raised upward about the hinge shaft 2, is restored, The oil vapor pressure in the storage tank 1 can be maintained within the set range by pressing the upper surface of the packing 20 in close contact.

Particularly, in the above-described repeated process,

In the conventional case, the disk 30 is fixedly connected to the lower end of the shaft fixed to cover the disk 30 so that the disk 30 is biased to one side by the rotation of the disk 30 And the sealed packing 20, the vapor is finely recoiled through the gap, and the oil vapor pressure inside the storage tank 1 can not be maintained within the set range. On the other hand, in the present invention The disk 30 is primarily supported by fastening the fixing pieces 71 to the upper surface of the horizontal bar 61 and then fixed to each other by the fixing bolts 72. The bolts and nuts The fixing member 71 is firmly fixed to the horizontal bar 61 and the fixing bolt 72 is fixed again to fix the disc 30 securely in the secondary position so as to open and close the discharge port 11 In the process, a large shaft which can completely prevent the shaft from shaking Provide points.

In addition, by forming the adjusting holes 71a of the fixing means 70 and the horizontal bars 61 as elongated holes, the fixing bolts 72 provided on the adjusting holes 71a can be moved to the left or right and then fixed The disc 30 is precisely adjusted to the upper surface of the hermetic packing 20 provided at the discharge port 11 so that the airtightness can be maintained more effectively.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those of ordinary skill in the art that various changes and modifications may be made without departing from the scope of the present invention.

1: Storage tank
2: Hinge shaft
10: Coupling
11: Outlet
12: Hinge section
20: Seal packing
30: Disk
31: seat groove
32:
40: Fixing ring
50: Fixed plate
60: pressing member
61: Horizontal bar
62: wing portion
70: Fixing means
71:
72: Fixing bolt

Claims

A coupling body 10 having an outlet 11 formed at an upper portion communicating with the upper portion of the storage tank 1 and having a hinge portion 12 formed at one side of the outer peripheral surface thereof,
A sealing packing (20) provided at an outlet (11) of the coupling body (10)
A disc 30 seated on top of the hermetic packing 20,
A stationary ring 40 fixedly installed on the disc 30,
A fixing plate 50 fixedly installed on the fixing ring 40,
A pressing member 60 whose one end is joined to the hinge portion 12 of the coupling body 10 by the hinge shaft 2 and is brought into close contact with the upper surface of the fixing plate 50,
And a fixing means (70) for connecting and fixing the pressing member (60) and the fixing plate (50)
Wherein the disk (30) further comprises a seating groove (31) formed at a position corresponding to the hermetic packing (20) and bent upward.

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The method according to claim 1,
Wherein the disc (30) further comprises a blocking portion (32) formed to be perpendicularly bent and connected to an outer circumferential surface of the disc (30).

In Section 1,
The pressing member 60 further includes a horizontal bar 61 whose one end is hinged to the hinge 12 of the coupling 10 and a wing 62 formed on the other end of the horizontal bar 61 Wherein the storage tank is provided with an emergency pressure discharge device.

5. The method of claim 4,
Further comprising a presser body (63) formed with a fixing hole (61a) on the upper surface of the other end of the horizontal bar (61) and fixed to the upper portion of the fixing hole (61a) .

6. The method of claim 5,
Wherein the fixing hole (61a) is formed as a long hole.

The method according to claim 1,
The fixing means 70 is in close contact with the upper surface of the horizontal bar 61. The fixing hole 71a is formed at the center of the upper surface of the horizontal bar 61. The fixing hole 71 is formed with fixing holes 71b on both sides of the adjusting hole 71a, And a fixing bolt (72) which passes through the adjusting hole (71a), the horizontal bar (61), and the fixing plate (50) of the fixing piece (71) and fixes them to each other.

8. The method of claim 7,
Wherein the through hole formed by the adjusting hole (71a) and the fixing bolt (72) through the horizontal bar (61) is formed as a long hole.