KR20060094210A - Valve apparatus for a gas storage tank with overflow-cutting off and returning device - Google Patents

Abstract

The present invention relates to a valve for a gas storage container provided with an overflow blocking and returning device, and more particularly, a constant pressure regulator (not shown) due to carelessness of a worker in a process of opening a stem by an opening / closing handle and forming a flow path. When damaged or separated from the discharge and filling port of the valve body, the discharge and filling port is at atmospheric pressure, thereby preventing the gas charged in the storage container from being instantaneously discharged due to the pressure difference and artificially returning to the original state. The present invention relates to a valve for a gas storage container having an overload blocking and returning device capable of preventing a human life caused by a gas explosion, fire, or gas poisoning by enabling it to be reused.

The present invention has a cross-shaped valve body formed through each other through the body integrally, the handle body flowing into the valve body to open and close the gas flow path, and flows into the valve body when the overflow occurs automatically generated by the pressure of the gas A gas storage container valve comprising: an overflow blocking device for blocking a flow path by a flow path; and a return device for artificially returning the overflow blocking device to an original state. An inlet hole is formed in the center thereof, and a blocking device mounting unit in which a plurality of flow path holes are formed by a radial support formed around the inlet hole is integrally formed. A screw coupling part is formed on the other side of the valve body. Is, the coupling hole is formed in the longitudinal direction of the stem center portion, the return device is screwed in some section of the coupling hole A screw coupling portion is formed, and the overflow blocking device includes a flow path forming member formed at a central portion and installed in the screw coupling portion, a horizontal portion for opening and closing the opening, and a vertical portion flowing into the inflow hole. It is made of T 'shape and flows up and down during overflow and return to open and close the flow path, and flows into the outside of the vertical portion and is placed on the upper surface of the support portion to maintain a constant distance between the horizontal portion and the blocking device installation portion The return device includes a shaft for fastening the horizontal portion through the through hole, the screw coupling part being fastened to the coupling hole, and a seal installed at one outer circumference of the shaft to prevent outflow of gas. The upper end of the shaft is characterized by consisting of a handle for raising and lowering the entire return device.

Gas, open, close, valve, overflow, prevent, shut off, return

Description

Valve apparatus for a gas storage tank with overflow-cutting off and returning device}

1 is a cross-sectional view of a conventional gas storage valve.

Figure 2 is a cross-sectional view of the overflow blocking and return device of the valve for the gas storage container according to the present invention.

Figure 3 is an exploded perspective view of the overflow blocking device of the valve for a gas storage container according to the present invention.

Figure 4 is a plan sectional view of the blocking device installation portion in the overflow blocking device of the valve for gas storage container according to the present invention.

5a and 5b is an operational state diagram of the overflow block device in the valve for a gas storage container according to the present invention.

Figure 6a to 6c is an operating state of the return device in the valve for the gas storage container according to the present invention.

<Explanation of symbols for main parts of drawing>

1 gas passage 2 discharge and filling port 3 container coupling portion

4: Handle body coupling part 6: Safety valve installation part 7: Safety valve

8: block device installation part 9: screw connection part 10: valve body

20: handle body 21: opening and closing handle 22: stem

23: coupling hole 24: screw coupling portion 30: overflow blocking device

31: through hole 32: flow path forming member 33: packing

34: flow member 34a: horizontal portion 34b: vertical portion

35: spring 40: return device 41: handle

42: sealing 43: screw connection 44: shaft

The present invention relates to a valve for a gas storage container provided with an overflow blocking and returning device, and more particularly, a constant pressure regulator (not shown) due to carelessness of a worker in a process of opening a stem by an opening / closing handle and forming a flow path. When damaged or separated from the discharge and filling port of the valve body, the discharge and filling port is at atmospheric pressure, thereby preventing the gas charged in the storage container from being instantaneously discharged due to the pressure difference and artificially returning to the original state. The present invention relates to a valve for a gas storage container having an overload blocking and returning device capable of preventing a human life caused by a gas explosion, fire, or gas poisoning by enabling it to be reused.

In general, liquefied petroleum gas is easily liquefied when pressure is applied at room temperature and is used as fuel by gasification under reduced pressure in use, and is stored and transported and used in a conventional storage container in such a characteristic, such a storage container of liquefied petroleum gas safety Safety valves are installed at the inlet to prevent gas leaks and to limit the maximum pressure of the vessel.

That is, a valve for a gas storage container, which is generally used, has a valve body 10 formed in a cross shape and integrally penetrated with each other as shown in FIG. 1, and a gas flow path being introduced into one side of the valve body 10. The handle body 20 which opens and closes each is provided.

A handle body coupling part 4 is formed at an upper side of the valve body 10 to install a handle body 20 for opening and closing a gas flow path, and at the lower side of the valve body 10, a screw and a storage container are not shown. A container coupling part 3 is formed, and a discharge and filling port 2 through which gas is discharged and filled is formed on the left side of the valve body 10, and the right side of the valve body 10 is not shown. When the gas is charged to the storage container is configured by the safety valve installation portion 6 is installed is a safety valve (7) which is operated when the internal pressure is over a certain value due to overcharge.

The handle body 20 is integrally formed with the opening and closing handle 21 and the stem 22, the stem 22 is screwed into the handle body engaging portion 4 of the valve body 10 to open and close the handle 21 ), The stem 22 is lifted and lowered by the operation of).

The gas filling and using process in a state in which a valve for a gas storage container having such a configuration is screwed with a storage container not shown in the container coupling part 3 will be described below.

First, in the case of filling the gas into the storage container 30, by operating the opening and closing handle 21 of the handle body 20 to raise the stem 22 to open the flow path, the discharge and filling port (2) and gas passage Through (1), the filling is made to the storage container not shown, and when the filling is completed, the opening and closing handle 21 is operated to lower the stem 22 to close the flow path, and then discharge and filling port (2). The charging of the gas is completed by disconnecting the charger, not shown.

At this time, when the gas is overcharged in the storage container not shown, the pressure inside the storage container is rapidly increased, and when the pressure is higher than the set pressure of the safety valve 7 installed in the valve body 10, the safety valve 7 is opened. By discharging to the outside to prevent the explosion of the storage container due to overcharge.

When using the gas filled in the storage container not shown as described above, after installing the constant pressure machine (not shown) in the discharge and filling port (2) formed in the valve body 10, the handle body 20 is When the flow path is opened by manipulating, the gas filled in the storage container is discharged through the gas passage 1 and the discharge port and the filling port 2, and the discharged gas is discharged by maintaining a constant low pressure in a non-illustrated pressure regulator. I can use it stably.

Such a gas storage container valve is damaged due to the carelessness of the operator in the process of the flow path is formed by the rise of the stem 22 by the operation of opening and closing handle 21 of the handle body 20 or the valve body 10 When it is separated from the discharge and filling port (2) of the discharge and the filling port (2) is at atmospheric pressure and the gas charged into the storage container by the pressure difference is instantaneously discharged and the life of the gas explosion or fire and gas poisoning There is a problem that damage is caused, and the countermeasure is urgent.

The present invention is to solve the above problems, in the valve for the gas storage vessel, the stem is opened by the operation of the opening and closing handles in the process of forming a flow path due to the careless handling of the operator not shown or damaged When the valve body is separated from the discharge port and the filling port, the discharge and filling port becomes atmospheric pressure, thereby preventing the gas charged in the storage container from being instantaneously discharged due to the pressure difference, and at the same time, it is possible to artificially return to the original state. It is a technical task to make it possible to prevent the death of a person due to gas explosion, fire and gas poisoning by reusing it.

The present invention has a cross-shaped valve body formed through each other through the body integrally, the handle body flowing into the valve body to open and close the gas flow path, and flows into the valve body when the overflow occurs automatically generated by the pressure of the gas A gas storage container valve comprising: an overflow blocking device for blocking a flow path by a flow path; and a return device for artificially returning the overflow blocking device to an original state. An inlet hole is formed in the center thereof, and a blocking device mounting unit in which a plurality of flow path holes are formed by a radial support formed around the inlet hole is integrally formed. A screw coupling part is formed on the other side of the valve body. Is, the coupling hole is formed in the longitudinal direction of the stem center portion, the return device is screwed in some section of the coupling hole A screw coupling portion is formed, and the overflow blocking device includes a flow path forming member formed at a central portion and installed in the screw coupling portion, a horizontal portion for opening and closing the opening, and a vertical portion flowing into the inflow hole. It is made of T 'shape and flows up and down during overflow and return to open and close the flow path, and flows into the outside of the vertical portion and is placed on the upper surface of the support portion to maintain a constant distance between the horizontal portion and the blocking device installation portion The return device includes a shaft for fastening the horizontal portion through the through hole, the screw coupling part being fastened to the coupling hole, and a seal installed at one outer circumference of the shaft to prevent outflow of gas. It is formed on the upper end of the shaft, characterized in that consisting of a handle for raising and lowering the entire return device.

Hereinafter, the gas storage container provided with the overflow blocking and return device according to the present invention will be described in detail with reference to FIGS. 2 to 6C.

Figure 2 is a cross-sectional view of the overflow blocking and return device of the gas storage container valve according to the present invention, Figure 3 is an exploded perspective view of the overflow storage device of the valve for gas storage container according to the present invention, Figure 4 is Figure 5a and 5b is a plan sectional view of the blocking device installation portion in the overflow blocking device of the valve for the gas storage container according to the present invention, Figures 6a to 6c The operation state of the return device in the valve for a gas storage container according to the present invention.

That is, the overflow blocking and returning device of the valve for the gas storage container according to the present invention includes a valve body 10 integrally formed by penetrating each other in a cross shape as shown in FIGS. 2 and 3, and the valve body 10. A handle body 20 flowing into one side to open and close a gas flow path, an overflow blocking device 30 flowing into the valve body 10 and automatically blocking a flow path by a gas pressure when an overflow occurs, and the overflow It consists of a return device 40 which artificially returns the interruption device 30 to its original state.

The valve body 10 is formed with a handle body coupling portion 4 which is installed inlet the handle body 20 for opening and closing the gas flow path on the upper side, the lower side of the valve body 10 is screw coupling with the storage container not shown A container coupling part 3 is formed, and a discharge and filling port 2 through which gas is discharged and filled is formed on the left side of the valve body 10, and the right side of the valve body 10 is not shown. The safety valve installation part 6 is formed in which the safety valve 7 which is operated when the internal pressure becomes higher than a predetermined value due to overcharging when the gas is charged into the storage container is formed.

In addition, the one side of the gas passage (1) of the valve body 10 is formed integrally with the blocking device mounting portion 8 is provided with the overflow blocking device 30, and at the same time the end of the gas passage (1) A screw coupling part 9 for screwing a part of the blocking device 30 is formed, and the blocking device installation part 8 has an inlet 51 formed in the center thereof, as shown in FIG. The radial support 53 is integrally connected to the valve body 10 around the inflow hole 51 to form a structure in which a plurality of flow path holes 52 are formed.

The overflow blocking device 30 has a through hole 31 formed at a central portion thereof, and has a flow path forming member 32 installed at the screw coupling portion 9 of the valve body 10 and a lower portion of the flow path forming member 32. The horizontal portion 34a, which is installed and the packing 33 is installed on the upper surface, and the vertical portion 34b, which flows into the inlet hole 51 of the blocking device mounting portion 8, has a 'T' shape and rises during overflow and return. It is lowered and flows to open and close the flow path 34, the vertical portion (34b) is introduced into the outer surface of the blocking device mounting portion 8 is placed between the horizontal portion 34a and the blocking device mounting portion (8) It is composed of a spring 35 for maintaining a constant gap.

In this case, the vertical portion 34b may be curved in a cross shape or surface to expand the flow path.

The handle body 20 is formed with a coupling hole 23 having a constant diameter in the longitudinal direction of the center portion of the stem 22, and the return device 40 can be screwed to some sections of the coupling hole 23 Coupling portion 24 is formed.

The return device 40 is a through-hole formed in the flow path forming member 32 of the overflow blocking device 30 is formed with a screw coupling portion 43 is formed in some section to be fastened to the coupling hole 23 of the handle body 20 A shaft 44 for pressing and returning the horizontal portion 34a of the flow member 34 through the 31 and a seal 42 installed at one outer circumference of the shaft 44 to prevent outflow of gas; It is formed on the upper end of the shaft 44 is composed of a handle 41 for raising and lowering the entire return device (40).

Referring to the assembling process of the valve for gas storage container provided with the overflow blocking and return device according to the present invention having such a configuration as follows.

First, the assembly process of the overflow blocking device 30 will be described. After the packing 33 is adhesively fixed to the upper surface of the horizontal portion 34a of the flow member 34, the spring 35 may be vertically attached to the flow member 34. 34b) After flowing into the outer circumference, when the vertical portion 34b flows into the inlet hole 51 of the shutoff device mounting portion 8 formed in the valve body 10, the spring 35 rests on the support portion 53. By the thickness of the spring 35, the horizontal portion 34a and the blocking device installation portion 8 maintain a constant interval, and in this state, the flow path forming member 32 is formed inside the valve body 10 with the screw. By fastening to the coupling part 9, the assembly of the overflow blocking device 30 is completed.

Next, assembling the return device 40 to the handle body 20, first, the sealing 42 is installed on the outer circumferential side of the shaft 44, and then the coupling hole formed in the stem 22 of the handle body 20. (23) The return device 40 is assembled to the handle body 20 by flowing into the inside and screwing by two screwing portions 24 and 43.

As described above, the overflow block 30 is installed on the valve body 10, and the handle body 20 is formed on the valve body 10 with the return device 40 installed on the handle body 20. By screwing into the coupling portion 4 is to complete the assembly process of the valve for the gas storage container according to the present invention.

Referring to the operation relationship of the valve for the gas storage container according to the present invention assembled as described above in detail with reference to Figures 5a to 6c as follows.

Figure 5a and 5b is an operating state diagram of the overflow block device in the valve for the gas storage container according to the present invention, first Figure 5a shows a state in which the gas flow is completely open and the normal gas discharge and filling is possible. That is, when the stem 22 is raised by the operation of the handle body 20, the gas of the storage container is not shown in the gas passage 1 of the valve body 10 and the shutoff device mounting part 8. A flow path is formed through the flow path hole 52 formed in the through hole and the through hole 31 formed in the flow path forming member 32, and is discharged to the discharge hole and the filling hole 2.

On the other hand, in the filling process of the gas in FIG. 5A, when the stem 22 is raised by the manipulation of the handle body 20, the filling gas is discharged and the filling gas flowing from the filling port 2 is in the reverse order of the discharge flow path, that is, the flow path. A flow path through the inlet hole 51 formed in the forming member 32 and the inlet hole 51 formed in the blocking device installation unit 8 and the gas passage 1 is formed and filled in the storage container not shown.

At this time, when filling the gas in the storage container not shown or normally discharged by the height of the spring 35, the flow member 34 maintains a constant distance from the blocking device mounting portion 8 by the blocking device mounting portion (8) Do not block the flow path 52 of the gas is made to be discharged smoothly.

FIG. 5B illustrates an operation state of the overflow blocking device 30, in which a flow path is formed due to the rise of the stem 22 of the handle body 20, as in FIG. 5A, in a state in which the gas stored in the storage container is normally used. Due to the negligence of the handler, when the unillustrated hydrostatic pressure installed in the discharge and filling port 2 is broken or is separated from the discharge and filling hole 2 of the valve body, the discharge and filling port becomes atmospheric pressure, The gas filled in the storage container is instantaneously discharged through the formed flow path.

At this time, the discharged pressure is transmitted to the horizontal portion 34a and the vertical portion 34b of the flow member 34 constituting the overflow blocking device 30, as shown in FIG. When the flow member 34 is raised, the horizontal portion 34a blocks the through hole 31 formed in the flow path forming member 32 to block the flow path so that the gas filled in the storage container is no longer discharged. Will be.

6a to 6c show the operating state of the return device in the valve for the gas storage container according to the present invention, in the discharge and filling port (2) in the state that the gas flow path is blocked by the process of FIG. After installing the pressure regulator or taking suitable measures, in order to use the gas filled in the gas container again, the flow member 34 must be returned to its original state to form the flow path.

That is, when the shaft 44 is lowered by rotating the handle 41 of the return device 40 artificially to return the flow member 34 of the overflow blocking device 30 to its original state as shown in FIG. 6A. 44 is introduced into the through hole 31 of the flow path forming member 32 forcibly pushes the horizontal portion 34a of the flow member 34, the horizontal portion 34a by continuous pressure as shown in Figure 6b When separated from the through-hole (31), the gas flowing into the gas passage (1) is discharged through the gap between the flow path forming member 32 and the horizontal portion (34a), by which the pressure of the storage vessel is lowered do.

When the pressure of the storage container is lowered through the above process, as shown in FIG. 6C, the pressure is lowered by the load of the flow member 34 to return to the initial state as shown in FIG. 5A to maintain a normal state.

As described above, the present invention, in the process of forming the flow path by opening the stem by the operation of the opening and closing handle in the valve for the gas storage container, due to the carelessness of the operator not shown damage or discharge of the valve body and When it is separated from the filling port, the discharge port and the filling port become atmospheric pressure, thereby preventing the gas charged in the storage container from being instantaneously discharged due to the pressure difference, and at the same time, it is possible to artificially return to the original state so that it can be reused. It is effective to prevent human injury due to gas explosion or fire and gas poisoning.

Claims (1)

The valve body 10 which is integrally formed through the inside of each other in a cross shape, the handle body 20 which flows into one side of the valve body 10 to open and close a gas flow path, and flows into the valve body 10. And an overflow blocking device 30 which automatically shuts off the flow path by the pressure of the gas when overflow occurs, and a return device 40 which artificially returns the overflow blocking device 30 to its original state. In the gas storage valve equipped with the device, An inlet hole 51 is formed at the center of one side of the valve body 10, and a blocking device in which a plurality of flow path holes 52 are formed by a radial support 53 formed around the inlet hole 51. The installation part 8 is integrally formed, and the screw coupling part 9 is formed at the other inner side of the valve body 10, The handle body 20, the coupling hole 23 is formed in the longitudinal direction of the center portion of the stem 22, the screwing portion that can be screwed to the return device 40 in some section of the coupling hole 23 A portion 24 is formed, The overflow blocking device 30 has a through hole 31 formed at a central portion thereof, and has a flow path forming member 32 installed at the screw coupling portion 9, and a horizontal portion 34a for opening and closing the through hole 31. And a vertical portion 34b flowing into the inflow hole 51 is formed in a 'T' shape and is moved up and down during overflow and return to open and close the flow path, and flows into the outside of the vertical portion 34b. It is made of a spring 35 is placed on the upper surface of the support portion 53 to maintain a constant gap between the horizontal portion 34a and the blocking device installation portion 8, The return device 40, the screw engaging portion 43 for fastening to the coupling hole 23 is formed and the shaft 44 for pressing the horizontal portion 34a through the through hole 31 to return; Sealing 42 is installed on one side outer periphery of the shaft 44 to prevent the outflow of gas, and a handle 41 formed on the upper end of the shaft 44 to raise and lower the entire return device 40 Gas storage container valve with a flow blocking and return device, characterized in that made.

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