KR100255379B1 - Over current stopper of high pressure gas bottle and valve for remaining gas - Google Patents

Abstract

PURPOSE: A valve device for stopping retrieving and recovering remaining gas for a high pressure gas bottle is provided to effectively stop the overflow by perfectly closing a nozzle hole of a valve under the state of overflow, thereby enhancing the safety in usage. CONSTITUTION: The valve device comprises an overflow stopper(20) and a nozzle switch(40). The overflow stopper(20) comprises a nozzle stopper(25) forming a gas flow groove and having an overflow sensing disk(22) and a plunger(24). The disk(22) is upwardly moved only when overflow gas flows. The plunger(24) blocks a nozzle hole(15) by the upward movement of the disk(22). The nozzle switch(40) has a control thread part(46) and a transport thread part(47) on a spindle(45). The control thread part(46) is fastened to a screw hole(51) of a fixing cap(50) mounted on a body(10). The transport thread part(47) is fastened to an operating piston(55), which is lifted by the rotation of the spindle(45) to close/open the nozzle hole(15). A projection push pin(59) is formed on the piston(55) to push the nozzle stopper(25) and open the nozzle hole(15).

Description

Overflow shutoff and balance recovery valve device for high pressure gas container

The present invention relates to a valve device that is used to control the supply and shut-off of the gas because the gas such as LPG is coupled to the high-pressure gas container filled in a high pressure state, in particular, when the gas in the high-pressure gas container is discharged overflow It is provided with the overflow blocking operation which automatically cuts off this, gas balance recovery operation to recover residual gas in the container, and opening / closing operation of the nozzle hole, so that the convenience of use is excellent and the safety and economic efficiency are maximized. The present invention relates to an over-current cutoff and residual liquid recovery valve device for a high pressure gas container.

In general, liquefied petroleum gas such as LPG is filled in a container under high pressure and widely used in a home or factory.

While such high pressure gas provides a number of useful advantages in use, it contains risks such as explosion, and thus has an absolute safety problem in its handling and use.

In particular, the container filled with the high-pressure gas is used to supply the gas to a predetermined position in the state of connecting the connection hose to the valve by installing a valve device that opens and closes the connection hose, the connection hose is damaged or temporarily If a large amount of high pressure gas leaks or if the pressure in the vessel is rapidly increased, there is a risk of explosion.

Therefore, due to the risk factors associated with handling and using these high pressure gas containers, the government has established the safety standards by the High Pressure Gas Safety Management Act.

The valve device coupled to the high-pressure gas container is to prevent the risk of explosion because the supply of excess gas is automatically cut off due to breakage of a specific part.

At this time, the overflow blocking criterion of the gas is that when the pressure in the high-pressure gas container is 1 kg / cm 2, the gas flows through the valve to block the valve at 2 m 3 / h or more and 2.7 m 3 / h or less, and the pressure in the container is 10 kg / cm 2. When the gas volume passing through the valve is blocked at 4.3㎥ / h or more than 6.3㎥ / h,

In addition, the high-pressure gas container in the city shown in the gas pressure passing through the valve when the pressure is 1kg / ㎠ cut off the valve below 2.7m 3 / h, the amount of gas passing through the valve when the pressure in the container is 10㎏ / ㎠ It is required to shut off the valve below this 6.3m3 / h.

Meanwhile, the valve for a high pressure gas container according to the related art has a gas induction path having a nozzle hole in a longitudinal direction inside a body, and moves up and down by a rotation operation of a handle on the upper portion thereof, while opening and closing the nozzle hole at the tip to supply and block gas. It is formed by integrally forming the opening and closing means for controlling the nozzle is provided with a nozzle blocking port for automatically blocking the nozzle hole when the excess gas is supplied to the nozzle hole.

However, in the case of such a valve, the opening and closing means for opening and closing the nozzle hole is integrally formed and integrally provided on the body, so that the opening and closing adjustment operation of the opening and closing means is made in response to the rotation operation of the handle. In order to open and close the opening and closing means must be enough to operate the opening and closing of the nozzle hole was made inconvenient control operation.

In addition, when the overflow gas is supplied through the nozzle hole of the valve, the nozzle blocking hole simply closes the nozzle hole, and thus, when the nozzle blocking hole and the nozzle hole interlock with each other, it is difficult to completely shut off the gas supply. You have an element.

In addition, when the nozzle blocking port is to be used to remove the dangerous elements while the nozzle blocking port is closed by the overflow gas supply, the nozzle blocking hole in the nozzle slot is in close contact with the gas pressure in the container. There is an inconvenience that becomes difficult.

In the above case, there is an inconvenience of removing the nozzle blocking hole blocking the nozzle hole, and in this process, economic losses due to leakage of gas are generated.

In addition, if the high-pressure gas container is used for a certain period of time to replace it as a safety problem, at this time to recover the remaining gas remaining in the container.

In order to recover the residual gas in such a container, the pressure is low and it is difficult to collect the valve completely by opening the valve. Therefore, it is collected by inhalation or the like. In this process, the nozzle blocking hole of the nozzle hole blocks the nozzle hole by suction force. As a result, the work of collecting the gas becomes inconvenient and thus, the complete collection of the gas is difficult, resulting in economic loss and safety problems.

The present invention was created to fundamentally solve all the problems of the prior art, the nozzle hole of the valve is operated in a state that completely prevents the leakage of gas when the gas in the high-pressure gas container flows in the overflow state, the overflow blocking Since it is effectively performed, the purpose of providing excellent safety and economical use.

In addition, the present invention is easy to operate to completely collect the remaining gas in the container to replace the high-pressure gas container is effective to perform the gas balance recovery effectively provides an excellent safety and economics.

In another aspect, the present invention is to provide an operation for effectively opening and closing the nozzle hole to provide excellent convenience in use.

The object of the present invention is formed so that the gas flow path and the operating chamber is connected to the nozzle hole in the body coupled to the high-pressure gas container filled with the high-pressure gas, blocking the nozzle hole when the excess gas above the set value is supplied on the gas flow path. The overflow blocking means for operation, and the nozzle opening and closing means for controlling the supply and shut-off of the gas by opening and closing the nozzle hole on the operation chamber, respectively, wherein the overflow blocking means is controlled to increase the operation only when passing the overflow gas And a nozzle blocking hole having a plunger for blocking the overflow detection disk and the nozzle hole, the nozzle blocking hole being configured to move up and down constantly by a guide means,

The nozzle opening and closing means is installed by screwing the adjustment screw portion and the transfer screw portion formed on the spindle so that the direction of the screw is opposite to each other in the fixed cap and the operation piston fixed to the body, but the operation piston is supported to prevent rotation by the rotation operation of the spindle The high pressure gas container is configured to open and close the nozzle hole by pressing the nozzle blocking port which blocks the nozzle hole by the protruding mill pin formed to protrude to the lower part of the operating piston while the operating piston performs the lifting and lowering operation. This is achieved by means of an overflow shutoff and a residual liquid return valve device.

1 is a cross-sectional configuration of the present invention,

2 is a cross-sectional view showing an exploded state of the present invention,

3 is a cross-sectional view taken along the line A-A of FIG.

4 is a perspective view showing part “F” of FIG. 1;

5, 6, 7 is a cross-sectional view showing the operating state of the present invention,

5 is a state in which the valve is used to open;

6 is a state of use at the time of blocking the overflow of the valve,

Fig. 7 is a state in which the valve is reopened in the overflow blocking state or the balance is recovered in the container.

<Description of the symbols for the main parts of the drawings>

10. Body 12. Gas guide 14. Operation chamber

15. Nozzle hole 20. Overflow blocking means 22. Overflow detection disc

22a. Gas Distribution Groove 24. Plunger 25. Nozzle Block

27.Guide pin 30.Guide hole 40.Nozzle opening and closing means

45. Spindle 46. Adjusting screw part 47. Feeding screw part

50. Retaining cap 55. Working piston 59. Protruding mill pin

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

That is, the present invention is a gas flow path formed in the longitudinal direction at the bottom in the body 10 coupled to the high-pressure gas container 5 is filled with a high-pressure gas, such as LPG as shown in Figures 1, 2 and 3 12 and the operating chamber 14 formed in the longitudinal direction in the upper portion is formed to communicate with the nozzle hole 15, the connection hose 7 is connected to one side of the operating chamber to supply gas to a predetermined position The furnace 17 is formed in communication,

On the gas flow path 12 of the body 10 is provided with a flow blocking means 20 for blocking the nozzle hole 15 when the excess gas of the set value or more is supplied, the handle 60 on the operating chamber (14) It is provided with a nozzle opening and closing means 40 for controlling the supply and blocking of gas by opening and closing the nozzle hole 15 by the rotation operation of the).

The overflow blocking means 20 has a nozzle blocking port having an overflow detecting disk 22 for controlling the rising operation when passing the overflow gas and a plunger 24 for opening and closing the nozzle hole 15 by the raising operation of the overflow detecting disk. It is provided with a (25), the nozzle block is to be moved up and down constantly by the guide means (26).

The guide means 26 is coupled to the guide pin 27 at the lower end of the nozzle block 25, the guide pin is guided to the guide hole 31 in the guide sphere 30 to the nozzle block 25 Will move up and down constantly.

At this time, the nozzle block 25 may be installed to be operated to guide the guide pin (27) by installing a guide (30) at the bottom.

In addition, the overflow detection disk 22 is made of a flexible material (for example, a rubber material) to form a gas distribution groove 22a for smooth gas distribution on the circumference.

The nozzle opening and closing means 40 forms an adjustment screw portion 46 and a transfer screw portion 47 in which upper and lower sides of the spindle 45 face the screw direction, respectively, so that the adjustment screw portion 46 is fixed to the body 5. Screwed into the screw hole 51 of the fixed cap 50 to be installed, the transfer screw portion 47 is screwed into the operating piston 55 for opening and closing the nozzle hole 15, the operating piston 55 is Since the support surface 57 is formed on the upper circumference, and the support surface 57 is formed at the lower portion of the fixing cap 50 to form an assembly groove 52 to be assembled to prevent rotation, the spindle 45 is assembled. By the rotation operation of the operation piston 55 is to perform only the lifting operation.

At this time, when the spindle 45 is rotated upward, the operation piston 55 is operated to descend, and when the rotation is lowered, the operation piston 55 is operated to rise.

In addition, the spindle 45 has a larger pitch of the feed screw 47 than the adjusting screw 46, so that the lifting height of the operating piston 55 is higher than the lifting height by the one-turn operation of the spindle 45. Works great.

In addition, the front end of the operation piston 55 is installed to protrude toward the pressure pad 58 and the center of the elastic material for maintaining the air tightness of the nozzle hole 15 during the closing operation to block the nozzle by the lowering operation of the operation piston (55). The ball 25 is provided with a protruding mill pin 50 to open the nozzle hole 15 by pressing.

At this time, the length of the protruding mill pin 59 is variable so that the timing of pressing the nozzle blocking port 25 during the lowering operation of the operating piston 55 can be adjusted.

Reference numeral 35 denotes a support for supporting the guide tool 30 together with the fixing nut 37, 38 for a ballistic spring for elastically pressing the support tool 35, and 42 for the handle 60. Fixing nut for fixing the spindle 45 to the shaft, 56 is the oil ring, 70 is the gas pressure on the gas flow path 12 of the body 10 is formed more than the set value maintained by the container, the automatic opening operation to reduce the pressure Each of them represents a safety measure that prevents the risk of an explosion.

Next will be described with respect to the operation of the present invention configured as described above.

First, the valve device of the present invention is installed in a high pressure gas container 5 filled with liquefied petroleum gas such as LPG in a high pressure state, and a connection hose 7 is connected to the gas supply path 17 of the valve body 10. ) Will be installed to supply gas to a certain position.

At this time, since the valve device is in a state of supplying gas as shown in FIG. 1, since the nozzle hole 15 is closed by being pressed by the pressure pad 58 of the operation piston 55, leakage of gas is prevented.

To open the nozzle hole 15 to provide the gas supply in such a state, as shown in FIG. 5, the nozzle hole 15 is rotated in the opening direction in the locking direction of the handle 60.

When the adjustment screw 46 is lowered along the screw hole 51 of the fixing cap 50 while the spindle 45 fixed to the handle is rotated by the rotation operation of the handle 60, the adjustment screw portion 46 is fixed. ) And the operation piston 55 screwed to the feed screw portion 47 formed to face the screw direction is raised.

At this time, the spindle 45 is formed at least the screw pitch of the feed screw portion 47 than the adjustment screw portion 46, so that the lifting operation of the piston (55) than the lifting height by the one-turn operation of the spindle 45 Since the height is largely operated, that is, the opening and closing operation of the nozzle hole 15 is performed while reducing the rotational operation of the handle 60 compared with the conventional valve, thereby providing convenience in use.

As described above, the pressure pad 58 at its tip is spaced apart from the nozzle hole 15 by the upward operation of the operation piston 55 by the rotation operation of the handle 60 to open the nozzle hole.

At this time, the opening time of the nozzle hole 15 is not opened in the range of turning the handle 60 at least one rotation for safety reasons.

When the nozzle hole 15 is opened due to the rise of the working piston 55 in this manner, the high pressure gas in the container 5 passes through the gas flow path 12, the nozzle hole 15, and the gas supply path 17. It is supplied through (7).

At this time, when the amount of gas supplied to the connection hose 7 through the valve body 10 is less than the set value compared to the pressure in the container as described above, the overflow detection disk of the nozzle block 25 installed in the gas flow path 12 It is not possible to raise the 22 to pass only the gas through the gas distribution groove (22a).

In this state, if the connection hose 7 is damaged by an accident or a large amount of gas leaks through the gas body 10 at one time, the nozzle is blocked as shown in FIG. 6. As the overflow detection disk 22 of the sphere 25 is raised by the overflow gas passing therethrough, the plunger 24 at the tip automatically blocks the nozzle hole 15 so that the supply of gas is stopped.

At this time, the nozzle block 25 is a guide pin (27) coupled to the lower end of the guide hole (30) to move up and down uniformly so that the plunger 24 of the front end nozzle hole (15) ) Is closed precisely so that the gas supply is completely shut off automatically, providing safety.

In addition, in the state where the nozzle hole 15 is blocked by the overflow gas as described above, and the gas supply is stopped, the nozzle blocking hole 25 blocking the nozzle hole 15 is pressurized by the gas pressure in the container. 15) is blocked.

Therefore, when resolving the damaged factor and supplying the gas again, the nozzle hole 15 needs to be opened again. As shown in FIG. 7, when the handle 60 is reversely rotated in the locking direction, the spindle ( As the working piston 55 is lowered by the rotation raising operation of 45, the protruding mill pin 59 at the tip presses the plunger 24 of the nozzle blocking port 25 closing the nozzle hole 15, so that the nozzle hole ( 15) to open.

At this time, the nozzle blocking hole 25 is lowered to the original position in the state in which the guide pin 27 is guided to the guide tool 30, and the pressure pad 58 of the working piston 55 is spaced apart from the nozzle hole 58. In this state, the gas is supplied to the connection hose 7 through the nozzle hole 15.

In addition, since the protruding mill pin 59 pressurizes the nozzle blocking hole 25, the opening point of the nozzle hole 15 is a safety issue within a range in which the handle 60 is rotated at least one rotation from the fully released direction to the locked direction. The opening operation is not made.

On the other hand, there is a safety risk by using the high-pressure gas container for a certain period of time, when the disposal process is to discard the remaining gas remaining in the high-pressure gas container to the inhaler to be disposed of in a completely exhausted state.

At this time, the high-pressure gas container is connected to the suction hose (not shown) by the suction hose (not shown), the suction detection disk 22 of the nozzle shut-off port 25 is sucked up by the suction force when the suction is lifted by the plunger 24 As described above, since the nozzle hole 15 is closed, suction of gas becomes difficult.

Therefore, when the operating piston 55 is lowered by rotating the handle 60 in the locking direction as described above, the protruding mill pin 59 plunger 24 of the nozzle blocking port 25 to close the nozzle hole 15. Since pressurizes to maintain the open state of the nozzle hole (15).

In this state, if the residual gas in the high pressure gas container 5 is sucked by the inhaler, the nozzle hole 25 is caught by the protruding mill pin 59 of the working piston 55 even if the nozzle blocking port 25 is raised by the suction force. Since it becomes difficult to close (15), the residual gas in the container is easily and completely recovered.

Therefore, in the replacement process of the gas container, since the residual gas in the container is recovered without recycling, the safety and economic efficiency are excellent.

As described in detail above, the valve device of the present invention effectively blocks the nozzle hole of the valve by a nozzle shutoff hole that constantly lifts and operates the gas in the vessel filled with the high pressure gas in the overflow state, thereby preventing the leakage of gas. Prevents overflow effectively

When operating in accordance with the reopening of the nozzle hole or to collect the residual gas in the container to replace the high-pressure gas container, the nozzle blocking hole is separated from the nozzle hole by a protruding mill pin provided at the lower part of the opening means to reopen the nozzle hole or It will have the effect of effectively recovering the balance of the gas in the container.

Claims (4)

Inside the body 10 coupled to the high pressure gas container 5 filled with the high pressure gas, the operation chamber 14 in which the gas supply passage 17 is connected to the gas flow path 12 is connected to the nozzle hole 15. It is formed in communication with the gas flow path 12, the excess flow blocking means 20 for blocking the operation of the nozzle hole 15 when the excess gas of the set value or more is supplied, the nozzle hole 15 in the operating chamber 14 opening and closing In that the nozzle opening and closing means 40 is provided to operate to control the supply and blocking of gas, respectively, The overflow blocking means 20 forms a gas flow groove 22a for distributing the gas and controls the flow detection disc 22 and the nozzle hole by the upward movement of the flow detection disk to control the lift operation only when passing the flow gas. 15 is provided with a nozzle blocking opening 25 having a plunger 24 for blocking the nozzle blocking opening is configured by the guide means 26 to move up and down constantly, The nozzle opening and closing means 40 forms an adjustment screw portion 46 and a transfer screw portion 47 in which upper and lower sides of the spindle 45 face the screw direction, respectively, so that the adjustment screw portion 46 is fixed to the body 10. Screwed into the screw hole 51 of the fixed cap 50 to be installed, the transfer screw portion 47 is screwed into the operating piston 55, but the operating piston is supported to prevent rotation to rotate the spindle 45 The operation piston 55 performs only the lifting and lowering operation by the operation, thereby opening and closing the nozzle hole 15, and protruding the protruding mill pin 59 into the lower center of the operation piston 55 to protrude the nozzle hole 15. Overflow cutoff and residual liquid recovery valve device for a high-pressure gas container, characterized in that the pressurizing the nozzle blocking port 25 to block the opening to operate the nozzle hole (15). The method of claim 1, The guide means 26 is coupled to the guide pin 27 at the lower end of the nozzle block 25, the guide pin is guided to the guide hole 31 in the guide sphere 30 to the nozzle block 25 Overflow shutoff and balance recovery valve device for a high-pressure gas container, characterized in that the constant lifting operation. The method of claim 1, The spindle 45 of the nozzle opening and closing means 40 has a larger pitch of the screw thread of the feed screw portion 47 than the adjusting screw portion 46, so that the operating piston 55 is higher than the raising and lowering height by one rotation of the spindle 45. Overflow shutoff and balance recovery valve device for a high-pressure gas container, characterized in that made to operate largely the height of the lifting operation. The method of claim 1, Since the working piston 55 forms a support surface 57 on the upper circumference and forms an assembly groove 52 in which the support surface 57 is fitted into the lower side of the fixing cap 50 to be assembled together. Overflow cutoff and residual liquid recovery valve device for a high-pressure gas container, characterized in that to prevent the rotation of the operation piston (55).