KR101548457B1 - Smart valve for lpg cylinder - Google Patents

Abstract

The present invention relates to a method for controlling the flow of gas by opening and closing operation between a circular sheet formed in a middle portion of a vertical hole formed to pass through a central axis of a smart body and a disk packing, It is molded into an integral plastic injection structure to ensure light weight and stability of rotational strength,
In addition, it reduces the flow loss during the inflow and outflow of gas through the outflow inlet of the smart valve, ensures the safety by automatically shutting off the outflow of the rubber when the rubber lake fastened to the outflow inlet is released,
In addition, the pressure boiler space of the smart safety device screwed into the smart body is equipped with a pressure sensor and a gas remaining amount display window, and atmospheric pressure boom space includes an electronic tag, a propane gas sensor, a butane gas sensor, a temperature sensor, A measurement sensor, and an antenna, respectively, and the information measured here is transmitted by an external reader.

Description

Smart valve for liquefied petroleum gas containers {SMART VALVE FOR LPG CYLINDER}

[0001] The present invention relates to a smart valve for a liquefied petroleum gas container, and more particularly to a smart valve for a liquefied petroleum gas container that controls the flow of gas by opening and closing operations between a circular sheet and a disk packing provided in a middle portion of a vertical hole, And the brass stem and the handle for the opening and closing action of the smart valve are molded into an integral plastic injection structure to ensure light weight and stability of rotation strength,

In addition, it reduces the flow loss during the inflow and outflow of gas through the outflow inlet of the smart valve, ensures the safety by automatically shutting off the outflow of the rubber when the rubber lake fastened to the outflow inlet is released,

In addition, the pressure boiler space of the smart safety device screwed into the body is equipped with a pressure sensor and a gas remaining amount display window, and atmospheric pressure boom space includes electronic tag, propane gas sensor, butane gas sensor, temperature sensor, Sensor, and an antenna, respectively, and the measured information is transmitted to the outside by a reader.

In order to open and close a valve for a conventional liquefied petroleum gas container, a brass stem and a plastic handle are screwed together. Therefore, if the screw is loosened or loosened for a certain period of time, the sealing sealing force between the circular seat and the disk packing is weakened, And the two pins are punched in the body in the lateral direction so that the upper and lower reciprocating movements of the brass stem can be controlled by the upper and lower stoppers. Therefore, the complicated assembling process increases the cost burden, , And since the disk is packed in one place when the circular sheet is in contact with the disk packing, the long-used disk packing has insufficient elastic restoring force, and the permanent durability such as the circular mark is rapidly progressed, To prevent gas leakage through the stem, a cylindrical hanger Two O-rings installed in the cervix increases the installation space and had sealed pressure falls durability problems.

In addition, the flow gap formed in the sliding space between the cylindrical slider and the bolt-type stopper is structurally narrow in order to automatically shut off the gas outflow when the rubber hose fastened to the outflow inlet is secured to secure safety, The flow loss due to the flow of gas through the two rectangular holes formed in the circumferential direction of the stopper is high and the length of the entire O ring is increased due to the installation of the two O rings.

In addition, since the conventional pressure vessel can not measure the remaining amount of charged gas, the dangerous situation such as gas leak and overflow through the pressure vessel and the valve, rapid temperature rise, conduction and theft of the pressure vessel can not be easily known by the user Gas safety accidents.

Accordingly, the present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method of manufacturing a brass cylinder by injecting a brass stem and a plastic handle into an integral handle structure to reduce weight, And a circular groove formed in the contact surface between the circular sheet and the disk packing to be compressed. The circular groove is formed by replacing the two circular O- To provide a smart valve having a structure in which the sealing endurance safety is ensured.

It is also possible to secure a wide flow path through the gap between the cylindrical slider and the bolt-like stopper provided at the outflow inlet and the radial passage through the bolt-type stopper to reduce the flow loss as much as possible and to replace the two O- And to provide a smart valve having such a structure that the sealing pressure and the sealing durability are secured.

The present invention also provides a smart valve capable of remotely providing information such as gas remaining amount information of a pressure vessel, gas information leaking through a pressure vessel and a valve, unnecessary swirling phenomenon and temperature rise information, and conduction and theft of a pressure vessel. There is a purpose.

In order to accomplish the object of the present invention, a brass plastic stem and a plastic handle are injected into a single body to inject a cylindrical male screw of a brass into an insert at the lower end of the plastic stem, Safety and reduced assembly process effect, and a double lip o-ring is provided on the circumference of the cylindrical hanger which is connected to the lower end of the plastic stem by a cylinder ring to secure the overall length shortening and sealing property, Circular groove securing property The circular groove is formed on one contact surface of the built-in disk packing to increase the resilience and sealing force of the elastic behavior, and the electronic stick is provided in the hole formed in the center of the plastic stem to provide safety management information Thereby providing a valve.

In addition, a plurality of rectangular slots are formed along the circumferential direction of the cylindrical slider provided at the outflow inlet, and a plurality of small holes are formed in the bolt-type stopper along the circumferential direction to sufficiently secure the flow gap between the cylindrical slider and the bolt- The present invention provides a smart valve having a structure in which the flow loss of a gas is reduced by providing a double lip o-ring and deformed double lip o-rings on the circumferential surface of a cylindrical slider to shorten the length and ensure sealing property.

In addition, the smart safety device is equipped with a pressure boom equipped with a pressure sensor and a gas remaining amount display window, an atmospheric pressure porbar with an electronic tag, a propane gas sensor, a butane gas sensor, a temperature sensor, an angle sensor, The present invention relates to a smart valve having a structure in which safety information such as gas remaining amount, temperature, gas leakage, overflow, conduction, and theft of a pressure vessel is provided wirelessly.

Since the brass stem and the plastic handle are both formed into the integrated handle structure of the plastic, the weight reduction, the stability of the rotary strength, and the elimination of the assembly process effect can be expected, thereby contributing to the cost reduction. O-ring can be installed to shorten length and sealability. Circular groove is formed on one contact surface of disk packing with circular groove to improve resilience of elastic behavior and durability of sealing, and electronic tag is inserted in the center hole of plastic stem The safety management information can be wirelessly provided to secure safety.

In addition, a plurality of rectangular slots are formed along the circumferential direction of the cylindrical slider, and a plurality of small holes are formed along the circumferential direction in the bolt-type stopper to reduce the flow loss due to gas inflow and outflow. On the circumferential surface of the cylindrical slider, The double lip o-ring can be provided to secure the shortening of the length and the sealing property.

In addition, the smart safety device includes a pressure boom with a pressure sensor and a gas remaining amount display window, an atmospheric pressure boiler equipped with an electronic tag, a propane gas sensor, a butane gas sensor, a temperature sensor, an angle sensor, It is possible to provide safety and ease of use by providing safety information such as gas remaining amount, temperature, gas leakage, overflow, conduction and theft of a pressure vessel wirelessly.

1 is a perspective view of a conventional valve for a liquefied petroleum gas container;
2 is a perspective view of a smart valve for a liquefied petroleum gas container of the present invention.
3 is a perspective view of the smart safety device of the present invention.

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

1, a male screw 11 is formed on the outer peripheral surface of the lower end of the valve body 10 in order to store the gas in the pressure vessel and fasten the upper end of the pressure vessel so that the stored gas can be safely used. A vertical hole 12 or 12 'penetrating along the central axis of the body 10 is formed to allow the gas to flow in and out and a lower horizontal hole 13 penetrating in the right direction of the vertical hole 12 is formed There is provided a safety valve (100) for preventing the explosion of the pressure vessel, which occurs when the pressure of the pressure vessel rises abnormally,

A disk packing 15 which is pressed onto the circular sheet 14 having a circular end at the upper side of the lower horizontal hole 13 is provided and a cylindrical hanger 15 for fixing the disk packing 15 with a bonding agent And two O-ring grooves 18 for vertically mounting a pair of O-rings 17 are formed on the outer circumferential surface of the cylindrical hanger 16, A brass stem (20) is provided on the upper end of the cylindrical hanger (16) so as to be fitted and connected by a pair of cylindrical rings (19, 19 '), The lower end stopper 21 and the upper stopper 22 are formed at the middle portion of the stem 20 so as to be spaced apart from each other by a predetermined distance so that the upward and downward movement of the brass stem 20 causes the body 10 to move in the lateral direction (23), and the brass stem When the plastic handle 26 assembled to be fastened by the screw 25 rotates, the female hanger 24 formed at the upper center portion of the upper body 20 is reciprocated upward and downward by the separated and connected cylindrical hanger 16, Or closed.

As the cylindrical hanger 16 reciprocates in the vertical direction, the outer surface of the cylindrical hanger 16 opens or closes the passage of the upper horizontal hole 27 formed to penetrate in the left direction of the vertical hole 12 ' A female thread 24 'is provided on the inner diameter portion of the circular tube 28 protruding from the outer extension of the upper horizontal hole 27 for normal inflow and outflow of gas, and a spring 29 And a hole 31 closed at one side along the center axis of the stopper bolt 30 fastened to the female screw 24 'is formed, and a hole 31 is formed at a portion where the hole 31 is clogged And the pair of rectangular holes 32 are symmetrically formed along the radial direction to allow the radially flowing gas to flow in the axial direction, and the outflow gas is supplied to the cylindrical slider 33) Two o-ring grooves 18 "for installing a pair of O-rings 17 'are provided on the outer circumferential surface of the cylindrical slider 33 so that the inner diameter of the outflow inlet 34 And the cylindrical slider 33 is structured to permit operation by the spring 29 so as to be able to move along the inner diameter portion of the outflow inlet 34. [

FIG. 2 shows a smart valve for a liquefied petroleum gas container according to the present invention. As shown therein, the present invention is characterized in that a male screw 11 is formed on the outer peripheral surface of a lower end of a smart body 40 for fastening to a top end of a pressure vessel A vertical hole 12 or 12 'passing through the central axis of the smart body 40 is formed to allow the gas to flow in and out and a lower horizontal hole 13 penetrating in the right direction of the vertical hole 12 (100) for preventing the explosion of the pressure vessel, which is generated when the pressure of the pressure vessel rises,

The circular groove built-in disk packing 41 is press-fitted to the end of the circular sheet 14 having a circular end at the upper side of the lower horizontal hole 13, The circular groove 42 is formed so that the portion pressed by the end portion of the circular sheet 14 is separated into two portions to increase the elastic behavior sealing property and the circular groove built-in disk packing 41 is fixed An O-ring groove 18 for providing a double lip O-ring 43 is formed on the circumferential surface of the cylindrical hanger 16 so as to form an O-ring groove 18 on the circumferential surface of the vertical hole 12 ' Circular grooves 42 'are formed in the intermediate portion of the cut surface along the circumferential surface of the double lip O-ring 43 along the inner and outer diameters to form axial grooves 42' The ribs 44 and 44 'are formed into one double lip The cylindrical hanger 16 has a structure in which a seal function is performed at least two times as compared with the case where two O-rings 17 are provided by the O-ring 43. At the upper end of the cylindrical hanger 16, A cylindrical male thread 47 is inserted into the upper portion of the cylindrical ring 19 and the outer peripheral surface of the lower end of the plastic stem 46 by inserting a cylindrical male thread 47 into the cylindrical stem 19, And an electronic tag 48 is inserted into the inner diameter portion of the hole 31 'formed at one end of the central shaft of the integral handle 45 so that the female thread 45 formed at the inner diameter of the upper end of the integral handle 45 A circular protrusion 50 is formed on the inner side of the integral handle 45 so as to block foreign substances flowing inward on the outer circumferential surface of the plastic stem 46 by using a screw plug 49, And at the same time, A stopper bolt 30 '' provided with an O-ring 17 is provided to secure the stability of rotation and to block foreign substances from entering the outside. When the integral handle 45 is rotated, the cylindrical male screw 47 is inserted into the smart body The upper end stopper 22 provided at the lower end of the stopper bolt 30 "is reciprocated in the vertical direction, so that the smart valve < RTI ID = 0.0 & Is opened or closed.

The outer diameter of the cylindrical hanger 16 serves to open or close the passage of the upper horizontal hole 27 as the cylindrical hanger 16 reciprocates up and down. A female thread 24 'is formed on the inner diameter portion of the circular tube 28 formed on the outer extension of the upper horizontal hole 27 and a spring 29 is provided on the outer diameter portion of the circular tube 28. The female thread 24' A packing groove 52 is formed at a portion where the hole 31 is closed and a packing groove 52 is formed at a portion where the hole 31 is closed to form a packing 52, And the plurality of small holes 53 and 53 'are symmetrically formed along the radial direction so that the gas introduced in the axial direction flows out in the radial direction without flowing loss, and the discharged gas flows through the cylindrical slider 33' A plurality of < RTI ID = 0.0 > And an O-ring groove 18 'for installing a double lip O-ring 43' is formed on the outer circumferential surface of the end portion of the cylindrical slider 33 'to the inside of the cylindrical slider 33', without flowing loss through the rectangular slots 54 and 54 ' And the cylindrical slider 33 'is operated by a spring 29 so as to be able to move along the inner diameter portion of the outflow inlet 34. The cylindrical slider 33' To a smart valve having a structure that permits a small amount of fluid.

FIG. 3 shows a smart safety device for a smart valve according to the present invention. As shown in FIG. 3, the smart valve according to the present invention includes a smart valve, The smart safety device 200 is provided with a pressure poromer 61 to which the pressure of the pressure vessel is directly supplied and an atmospheric pressure poroma 62 to be exposed to the atmospheric pressure, And the pressure chambers 61 are provided with two independent separated spaces, and the converted data obtained by measuring the fluctuation pressure of the gas stored in the pressure vessel by the pressure sensor 63 indicates information indicating that the remaining gas amount is sufficient, insufficient, or exhausted A gas remaining amount display window 64 is provided and the atmospheric pressure pyrometer 62 is provided with a propane gas sensor 65 and a butane gas sensor 66 for checking the gas leaking from the pressure vessel, An angle sensor 68 for monitoring the conduction state of the pressure vessel, an overcurrent shutoff sensor 69, a distance measurement sensor 70 for indicating the moving state of the pressure vessel, a smart safety device 200 An antenna 71 and an electronic tag 48 'for wirelessly transmitting information measured in the smart security device 200 are installed respectively and a reader 72 for reading information stored in the smart security device 200 is installed outside And to a smart safety device of a smart valve for preventing the pressure vessel from being turned or stolen.

In the present invention, the shape and number of double lip o-rings, the number and number of openings, the shape and number of outlets used to reduce flow losses in a cylindrical slider, the arrangement and type of smart safety devices, And can be variously changed by the method.

The present invention described above is not limited to the structure and operation as shown and described. In other words, the present invention is susceptible to various changes and modifications within the spirit and scope of the appended claims.

10: Body 11: male thread
12, 12 ': vertical hole 13: lower horizontal hole
14: Circular sheet 15: Disk packing
16: cylindrical hanger 17, 17 ': O-ring
18, 18 ', 18 ": O-ring groove 19, 19': Cylindrical ring
20: brass stem 21: lower stopper
22, 22 ': upper stopper 23: pin
24, 24 ', 24 ": female thread 25: screw
26: plastic handle 27: upper horizontal hole
28: circular tube 29: spring
30,30 ": Stopper bolt 31,31 ': Hole
32: Square holes 33, 33 ': Cylindrical slider
34: Outflow inlet 35: Bolt-type stopper
40: Smart body 41: Circular groove Internal disk packing
42, 42 ': Circular groove 43, 43': Double lip o-ring
44, 44 ': Lip 45:
46: Plastic stem 47: Cylindrical male thread
48, 48 ': Electronic tag 49: Screw plug
50: circular protrusion 51: packing groove
52: packing 53, 53 ': small hole
54,54 ': Rectangular slot 60: Rear horizontal hole
61: Pressure boiler 62: Atmospheric pressure boiler
63: pressure sensor 64: gas remaining amount display window
65: Propane gas sensor 66: Butane gas sensor
67: temperature sensor 68: angle sensor
69: overcurrent cut-off sensor 70: distance measuring sensor
71: antenna 72: reader
100: Safety side 200: Smart safety device

Claims (3)

One of the O-ring grooves 18 is formed on the circumferential surface of the cylindrical hanger 16 which is joined to the upper side of the circular groove built-in disk packing 41 having the circular grooves 42 on the lower surface thereof, A double lip O-ring 43 having a structure in which ribs 44 and 44 'are formed on both sides of the cut surface by forming circular grooves 42' along the center of the inner and outer diameters,
The integral handle 45 formed by molding the plastic handle 46 and the plastic handle 26 into a single plastic body is connected to the cylindrical hanger 16 by a brass cylindrical male screw The electronic tag 48 is inserted into a hole 31 'formed at one end of the central shaft of the integral handle 45 so as to be clogged with one end, and the female screw 47, which is formed at the uppermost central axis of the integral handle 45, And a stopper bolt 30 "having an O-ring 17 so as to be in contact with the outer peripheral surface of the upper end of the plastic stem 46 is fixed to the upper end of the smart valve 40 by a screw plug 49, A smart valve with a structure that is fastened to a female thread. The method according to claim 1,
A packing groove 51 is formed at the uppermost end of a bolt-type stopper 35 screwed into a round tube 28 protruding leftward from the center of the smart valve 40 to insert the packing 52 A plurality of small holes 53 and 53 'are formed along the radial direction and a plurality of rectangular slots 33' are formed along the circumferential surface of the cylindrical slider 33 'assembled to surround the outer diameter portion of the bolt- And a double lip o-ring (43 ') is formed by forming an O-ring groove (18') on the outer peripheral surface of the inner end of the cylindrical slider (33 '). . The method according to claim 1,
The smart valve 40 is provided with a rear horizontal hole 60 formed at the middle portion of the vertical hole 12, which penetrates the central portion of the intermediate portion of the middle portion in the vertical direction to allow fluid to flow in and out, A pressure sensor 63 and a gas remaining amount display window 64 are provided in the pressure boom 61 formed in the gas inlet of the smart safety device 200,
A propane gas sensor 65, a butane gas sensor 66, a temperature sensor 67, an angle sensor 68, an overflow shutoff sensor (not shown) 69, a distance measuring sensor 70, an antenna 71, and an electronic tag 48 '.

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