KR101305473B1 - Liquefied gas pressure regulator - Google Patents

Abstract

PURPOSE: A liquefied gas pressure regulator is provided to stably decompress high-pressure liquefied gas stored in a gas container to a set pressure. CONSTITUTION: A liquefied gas pressure regulator comprises a body (20), a first cover (48), a seat member (33), an opening and closing member, a first spring (54), a diaphragm, a second cover (72), and a second spring (76). The body has first and second chambers (22, 23), a connection hole (29), an inlet path (26), and an outlet path (27). The first cover is coupled to the body to cover the first chamber and has a first spring housing groove (49). The seat member is installed in the first chamber to cover the connection hole and has an orifice (36) and a seat part (39). The opening and closing member has a pin part (45) and a head (44). The first spring is installed in the first spring housing groove and applies elastic force to the head. The diaphragm is installed on the second chamber to be elastically deformable.

Description

Liquefied gas pressure regulator

The present invention relates to a liquefied gas pressure regulator, and more particularly, to a liquefied gas pressure regulator that can be provided by vaporizing a liquefied high-pressure liquefied gas to a low pressure coupled to the gas container in which the liquefied gas is stored.

In general, the pressure regulator reduces or shuts off the inflow of fluid when the output pressure reaches a set maximum, and maintains or increases the inflow of fluid when the output pressure decreases below a certain pressure. Such a pressure regulator is used to supply a high pressure storage gas such as a liquefied gas supply device or an automobile fuel supply device to reduce the pressure to an appropriate pressure.

The pressure regulator is generally elastically supported by a spring to open and close the orifice formed on the valve seat, and when the outlet pressure reaches the set maximum value when the outlet pressure reaches the set maximum value, the valve member is brought into close contact with the valve seat. It includes an opening and closing control device to be closed. The schematic operation of the pressure regulator is as follows.

When the outlet pressure increases, the valve member approaches the valve seat and restricts the flow of fluid due to the action of a spring that exerts an elastic force on the valve control member and the valve member. And when the outlet pressure reaches the set maximum value, the valve member is in close contact with the valve seat to close the orifice to block the flow of fluid. On the other hand, when the outlet pressure drops below a predetermined predetermined pressure, the fluid flows again while the valve member is separated from the valve seat by the action of a spring for applying an elastic force to the opening and closing control device and the valve member. This opening and closing operation of the valve member is quickly repeated to keep the output pressure constant at the required set value.

Pressure regulators have been developed in a variety of structures have been utilized in a variety of fields, such as Republic of Korea Patent Publication No. 0224470 (published on July 26, 1997), Republic of Korea Patent Publication No. 2005-0062203 (published on June 23, 2005) A conventional pressure regulator is disclosed. At present, various studies are being conducted to improve the operation stability and structure of the pressure regulator.

The present invention has been made in view of this point, and an object of the present invention is a liquefied gas of a new structure with improved durability while providing a liquefied high-pressure liquefied gas is reliably reduced to a set pressure to the liquefied gas container is stored It is to provide a pressure regulator.

The liquefied gas pressure regulator according to the present invention for achieving the above object is to provide a low-pressure vaporized liquefied gas liquefied gas is coupled to the gas container in which the liquefied gas is stored, arranged to face each other across the partition wall A first chamber and a second chamber, each end of which is open to the outside, a connection hole formed in the partition wall to connect the first chamber and the second chamber, and a gas supplied from the gas container may be introduced. A regulator having one side open to the outside and connected to the first chamber, and one side connected to the second chamber to discharge the gas introduced into the second chamber to the outside and one side opened to the outside A first spring number coupled to the regulator body to cover the body and the first chamber and open at one side to be connected to the first chamber A sheet member having a first cover having a molten groove, an orifice installed in the first chamber to cover the connecting hole and connecting the first chamber and the connecting hole, and a seat disposed around an end of the orifice; A pin part movably installed in the first chamber to open and close an orifice, having a width smaller than that of the orifice, inserted into the orifice, and having an end protruding into the second chamber, coupled with the pin part to open or close the orifice; An opening and closing member having a head wider than the orifice so as to be provided, and a first spring installed in the first spring receiving groove of the first cover to apply an elastic force in a direction in which the head contacts the seat portion with respect to the opening and closing member; And pushing the end of the pin portion protruding into the second chamber toward the first chamber to move the head from the seat portion. A diaphragm provided elastically deformable in the second chamber so that the second chamber may be coupled to the second chamber, and a second spring receiving groove coupled to the regulator body to cover the second chamber and open at one side thereof to be connected to the second chamber. And a second spring installed in the second spring receiving groove of the second cover and applying an elastic force in the direction in which the pin portion is pressed against the diaphragm.

The diaphragm is a hard plate having a pressing surface for pressing the end of the pin portion, and the hard plate so as to be interposed between the locking jaw provided around the inner side of the second chamber of the regulator body and the second cover. And a soft pad disposed around an edge of the soft pad, the soft pad may be elastically deformed to movably support the hard plate.

One surface of the hard plate may be provided with a protrusion protruding toward the end of the pin portion larger than the width of the pin portion, the pressing surface may be provided in the protrusion.

The discharge passage is provided to extend from the partition wall to the outer surface of the regulator body, and the partition chamber is installed in the second chamber, and the second chamber connects the connection hole and the discharge passage with the partition member therebetween. The guide chamber and the diaphragm chamber for accommodating the diaphragm, the guide chamber and the diaphragm chamber may be connected to the gas flow through the through-hole provided in the partition member.

The pin part of the opening / closing member passes through the guide chamber, and an end thereof protrudes toward the diaphragm chamber through a through hole of the partition member, and one side of the partition member carries the gas of the guide chamber together with the through hole. A through flow path for entering the fram chamber may be provided to be spaced apart from the through hole.

A sheet member cover portion is provided at an end of the first cover to cover the sheet portion in contact with one surface of the sheet member, and the sheet member cover portion directs gas introduced into the first chamber toward the orifice inside the sheet member cover portion. Connection flow paths for flowing may be provided.

The sheet member may include a plate part provided to contact the partition wall of the regulator body to cover the connection hole and having the sheet part provided on one surface thereof, and a neck part coupled to the other surface of the plate part so as to be inserted into the connection hole of the partition wall. A connection passage extending from the seat portion of the plate portion to the inside of the neck portion, the neck portion having a connection passage extending from the orifice to the outer surface of the neck portion, and the orifice for guiding the pin portion inserted into the orifice into the second chamber; A guide hole extending to the end of the neck portion is provided, the gas flowing into the orifice can flow into the second chamber through the gap between the outer surface of the neck portion and the inner surface of the partition wall through the connecting passage. have.

The liquefied gas pressure regulator according to the present invention may further include an adjustment bolt screwed through the second cover to the end of the second cover to compress the second spring to adjust the elastic force of the second spring. have.

The liquefied gas pressure regulator according to the present invention is coupled to the gas container in which the liquefied gas is stored can be provided to reliably reduce the liquefied gas of liquefied high pressure to the set pressure, easy to assemble, and excellent durability.

1 shows a state in which a liquefied gas pressure regulator according to an embodiment of the present invention is coupled to a gas container.
2 is an exploded perspective view showing a liquefied gas pressure regulator according to an embodiment of the present invention.
3 is a cross-sectional view showing a liquefied gas pressure regulator and a coupler coupled thereto according to an embodiment of the present invention.
Figure 4 shows the gas supply state of the liquefied gas pressure regulator according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, a liquefied gas pressure regulator according to the present invention will be described in detail.

In describing the present invention, the sizes and shapes of the components shown in the drawings may be exaggerated or simplified for clarity and convenience of explanation. In addition, terms that are specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. These terms are to be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the contents throughout the present specification.

1 is a view illustrating a state in which a liquefied gas pressure regulator is coupled to a gas container according to an embodiment of the present invention, FIG. 2 is an exploded perspective view illustrating a liquefied gas pressure regulator according to an embodiment of the present invention, and FIG. Sectional view showing a liquefied gas pressure regulator and a coupler coupled thereto according to an embodiment of the present invention.

1 to 3, the liquefied gas pressure regulator 10 according to an embodiment of the present invention is a regulator body 20, the first cover 48 is coupled to one surface of the regulator body 20 And a second cover 72 coupled to the other side of the regulator body 20. Inside the regulator body 20, components such as a seat member 33, an opening and closing member 42, a partition member 56, a diaphragm 64, and the like are provided, and the first cover 48 and the second cover ( 72 is provided with a first spring 54 and a second spring 76, respectively. The liquefied gas pressure regulator 10 according to the present invention is coupled to the gas container 90 in which the high pressure liquefied gas is stored through the coupler 95, and vaporizes the high pressure liquefied gas stored in the gas container 90 to a constant low pressure. Can be provided.

The regulator body 20 includes the first chamber 22 and the second chamber 23 disposed to face each other with the partition wall 21 therebetween, and the gas supplied from the gas container 90 to the first chamber 22. An inflow passage 26 for introducing the gas into the furnace, and a discharge passage 27 for discharging the gas introduced into the second chamber 23 to the outside. A ridge 28 protrudes toward the second chamber 23 on one surface of the barrier 21 facing the second chamber 23, and the ridge 28 has a first chamber 22 and a second chamber ( A connecting hole 29 for connecting 23 is formed.

One side of each of the first chamber 22 and the second chamber 23 is opened to the outside, and is sealed by the first cover 48 and the second cover 72 coupled to the regulator body 20. A thread is provided around the edge of the first chamber 22 of the regulator body 20 and a corresponding thread is provided in the first cover 48 so that the first cover 48 is screwed to the regulator body 20. Can be. In addition, a thread is provided around the edge of the second chamber 23 of the regulator body 20, and a corresponding thread is provided in the second cover 72, so that the second cover 72 is screwed to the regulator body 20. Can be. Of course, the first cover 48 and the second cover 72 may be coupled to the regulator body 20 in a manner other than screwing as shown.

The inflow passage 26 of the regulator body 20 extends from the outer surface of the regulator body 20 to the first chamber 22. The inflow passage 26 may be divided into several sections having different diameters. That is, the portion 26a disposed on the outer surface of the regulator body 20 of the inflow passage 26 has a relatively large diameter so that the coupler 95 may be coupled thereto, and the first chamber 22 of the inflow passage 26 may be coupled thereto. The diameter of the portion 26b connected with is relatively small. In the middle of the inflow passage 26, a strainer 30 for filtering foreign substances in the gas introduced thereto is installed.

The discharge passage 27 of the regulator body 20 extends from the outer surface of the regulator body 20 to the partition wall 21 inside the regulator body 20. The discharge flow path 27 may be divided into several parts having different diameters, and the path is bent inside the regulator body 20. The portion 27a disposed on the outer surface of the regulator body 20 of the discharge passage 27 has a relatively large diameter, and various devices or pipes to which gas is supplied may be connected. The diameter of the portion 27b connected to the second chamber 23 of the discharge passage 27 is relatively small.

Looking at the flow path of the gas inside the regulator body 20, the gas flowing into the inlet passage 26 through the coupler 95 in the gas container 90 is the first chamber 22, the connection hole 29, Passed through the second chamber 23 and the discharge passage 27 in order to be discharged to the outside of the regulator body (20). When the gas flows along the gas path inside the regulator body 20, the high-pressure gas flowing into the inflow passage 26 is reduced to a constant low pressure and then passes through the discharge passage 27.

2 and 3, the seat member 33 and the opening and closing member 42 are installed in the first chamber 22 of the regulator body 20. The sheet member 33 includes a plate portion 34 which contacts the partition wall 21 of the regulator body 20 and covers the connection hole 29, and a neck portion protruding into the connection hole 29 at the center of the plate portion 34 ( 35 and an orifice 36 for connecting the first chamber 22 and the connecting hole 29. The orifice 36 extends from one surface of the plate portion 34 to an inner portion of the neck portion 35, and the connecting portion 37 connected to the orifice 36 has an outer circumferential surface of the neck portion 35 at the neck portion 35. It is formed to extend to. At the end portion of the orifice 36 inside the neck 35, a guide hole 38 into which the pin 45 of the opening and closing member 42 to be described later is inserted extends to the end of the neck 35. The pin portion 45 of the opening and closing member 42 may protrude toward the second chamber 23 through the guide hole 38.

The width of the neck portion 35 is smaller than the width of the connection hole 29 so that the connection hole 29 is not blocked even when the neck portion 35 is inserted into the connection hole 29. Accordingly, the gas introduced into the first chamber 22 passes through the orifice 36 and the connection passage 37 to block the unblocked portion of the connection hole 29, that is, the outer surface of the neck portion 35 and the partition wall 21. It may flow to the second chamber 23 through the gap therebetween.

The sheet portion 39 is provided at the inlet side of the orifice 36 on one surface of the plate portion 34 of the sheet member 33. The seat portion 39 is formed recessed inward of the plate portion 34 surrounding the inlet side of the orifice 36. The seat 39 is a portion in which the opening and closing member 42 is in close contact. When the opening and closing member 42 is in close contact with the seat 39, the orifice 36 is sealed, and the opening and closing member 42 is closed at the seat 39. When spaced apart, the orifice 36 is open.

The opening and closing member 42 is installed in the first chamber 22 to be movable to open and close the orifice 36 of the sheet member 33. The opening and closing member 42 is composed of a body 43, a head 44 and a pin part 45. The body 43 and the head 44 are accommodated in the first cover 48, a part of which is inserted into the first chamber 22, and the pin part 45 is inserted into the sheet member 33. The head 44 is a portion in contact with the seat portion 39 of the seat member 33. When the head 44 is spaced apart from the seat portion 39, the orifice 36 of the seat member 33 is opened, and the head 44 is opened. ) Is in contact with the seat 39, the orifice 36 is sealed. The portion of the head 44 in contact with the sheet portion 39 is formed in a shape corresponding to the shape of the sheet portion 39 so that the sheet portion 39 can be stably adhered to the sheet portion 39 without generating a gap.

The pin part 45 of the opening / closing member 42 is smaller than the orifice 36 and is inserted into the orifice 36 and the guide hole 38 of the seat member 33 so that the end thereof protrudes toward the second chamber 23. . Since the width of the pin part 45 is smaller than the width of the orifice 36, even when the pin part 45 is inserted into the orifice 36, the orifice 36 is not completely blocked, and the outer surface of the pin part 45 and the opening / closing member 42 are fixed. Gas can flow through the gap between the inner surfaces of the shell. Accordingly, when the head 44 of the opening and closing member 42 is spaced apart from the seat portion 39 of the seat member 33, the gas in the first chamber 22 is not blocked, that is, the pin portion 45 of the orifice 36. It may flow toward the connecting passage 37 through the gap between the outer surface of the and the inner surface of the opening and closing member 42.

The opening and closing member 42 has an elastic force in the direction in which the head 44 is in contact with the seat portion 39 by the first spring 54 provided in the first spring receiving groove 49 of the first cover 48. Receive. Accordingly, when no external force is applied to the opening and closing member 42, the opening and closing member 42 is pressed toward the seat portion 39 by the first spring 54 to maintain the orifice 36 closed.

The first spring 54 is installed in the first spring receiving groove 49 of the first cover 48 to surround the outer surface of the body 43 of the opening and closing member 42. One end of the first spring 54 is in contact with the inner surface of the first cover 48, and the other end of the first spring 54 is in contact with the outer surface of the head 44 of the opening and closing member 42.

The sheet member cover portion 50 is provided at the end of the first cover 48, and the sheet member cover portion 50 is in contact with one surface of the sheet member 33 while covering the sheet portion 39 to cover the sheet member 33. Is in close contact with the partition wall 21 of the regulator body (20). The sheet member cover part 50 is provided with a connection flow path 51, and the gas introduced into the first chamber 22 through the connection flow path 51 toward the orifice 36 inside the sheet member cover part 50. It can flow. A sealing member 52 is interposed between the first cover 48 and the regulator body 20 to close the gap therebetween. When the sheet member cover portion 50 having the connection flow path 51 is provided in the first cover 48, the sheet member cover portion 50 is seated when the first cover 48 is coupled to the regulator body 20. The member 33 is in close contact with the partition wall 21 of the regulator body 20. Therefore, the sheet member 33 can be easily assembled to the regulator body 20, and the sheet member 33 can be stably fixed in the first chamber 22.

2 and 3, a partition member 56 and a diaphragm 64 are installed in the second chamber 23 of the regulator body 20. The partition member 56 is disposed on the partition wall 21 side of the regulator body 20, and the diaphragm 64 is disposed on the side of the second cover 72 covering the second chamber 23. The partition member 56 partitions the second chamber 23 into a guide chamber 24 and a diaphragm chamber 25. The guide chamber 24 is provided between the partition wall 21 and the partition member 56 of the regulator body 20 and connects the connection hole 29 and the discharge passage 27. Therefore, the gas passing through the connection hole 29 can flow through the guide chamber 24 to the discharge passage 27.

The partition member 56 includes a partition plate 57 having a through hole 58, a first fence portion 59 projecting toward the partition wall 21 around an edge of one surface of the partition plate 57, and a partition plate 57. It includes a second fence portion 60 protruding toward the diaphragm 64 around the other side edge of the (). The receiving groove 61 in which the ridge 28 of the partition 21 is accommodated is provided in the part in which the through-hole 58 of the partition plate 57 was formed. The first fence part 59 is in contact with the partition wall 21 to be spaced apart from the partition wall 21 and the partition plate 57, and a guide chamber 24 is formed between the partition wall 21 and the partition plate 57. The through hole 58 is disposed on the same line as the connection hole 29 of the partition wall 21, and connects the guide chamber 24 and the diaphragm chamber 25 to enable gas flow. The pin portion 45 of the opening and closing member 42 inserted into the sheet member 33 through the through hole 58 may protrude toward the diaphragm chamber 25.

The partition member 56 has a through flow path 62 connecting the guide chamber 24 and the diaphragm chamber 25 in addition to the through hole 58. The through flow path 62 is formed at one side of the partition plate 57 so as to be spaced apart from the through hole 58. The gas flowing into the guide chamber 24 through the through passage 62 may smoothly flow into the diaphragm chamber 25, thereby changing the diaphragm chamber 25 from the dynamic pressure state to the static pressure state.

The chattering phenomenon of the diaphragm 64 installed in the diaphragm chamber 25 is prevented by the action of the through passage 62. And when the chattering phenomenon of the diaphragm 64 is eliminated, the pressure for operating the diaphragm 64 can be adjusted accurately so that the diaphragm 64 can operate more accurately and stably, and the noise caused by vibration is reduced. You can. Although the drawing shows that one is formed at the edge of the partition plate 57 of the through passage 62, the shape, arrangement structure, and number of formation of the through passage 62 may be variously changed.

The diaphragm 64 is disposed in the diaphragm chamber 25 so as to be spaced apart from the partition member 56 to move the opening / closing member 42 toward the first cover 48. The diaphragm 64 includes a hard plate 65 for pressing the end of the pin portion 45 of the opening and closing member 42, and a ring-shaped soft pad 69 disposed around the edge of the hard plate 65. . An insertion groove 66 is provided around the edge of the hard plate 65, and the soft pad 69 may be coupled to the hard plate 65 by inserting an inner portion thereof into the insertion groove 66. One surface of the hard plate 65 of the diaphragm 64 includes a protrusion 67 protruding toward the end of the pin portion 45, and the protrusion 67 is configured to press the pin portion 45 of the opening / closing member 42. A flat pressing surface 68 is provided. The width of the pressing surface 68 is larger than the width of the tip of the pin portion 45.

The diaphragm 64 is partitioned between the latching jaw 31 and the second cover 72, the soft pad 69 of which is provided around the inside of the second chamber 23 of the regulator body 20. 56) in a spaced apart state. The hard plate 65 is made of a hard material such as metal or plastic, and the soft pad 69 is made of a soft material which is elastically deformable such as rubber to support the hard plate 65 to be movable. The diaphragm 64 may push the pin part 45 toward the first cover 48 by the hard plate 65 moving in the diaphragm chamber 25 while the soft pad 69 is elastically deformed.

The diaphragm 64 according to the present invention has a structure in which the hard plate 65 moves by elastic deformation of the soft pad 69 that supports the hard plate 65 so as to be movable, and thus, a thin metal plate or a thin synthetic resin plate. Compared to the integral one-piece diaphragm, it is more sensitive to pressure changes and can operate quickly. In addition, compared to the conventional integrated diaphragm, the pin portion 45 can be stably pushed, there is less risk of fatigue destruction, and durability is excellent.

The diaphragm 64 receives an elastic force in the direction in which the pin portion 45 is pressed from the second spring 76 provided inside the second cover 72. The second spring 76 is installed in the second spring receiving groove 73 provided in the second cover 72. In the second spring receiving groove 73, the first spring supporting member 77 and the second spring supporting member 78 together with the second spring 76 are disposed to face each other with the second spring 76 interposed therebetween. One end of the second spring 76 is in contact with the first spring support member 77, and the other end of the second spring 76 is in contact with the second spring support member 78. The first spring support member 77 is in contact with the hard plate 65 of the diaphragm 64 so that the pressing force of the second spring 76 is transmitted to the diaphragm 64 through the first spring support member 77. do.

The second spring support member 78 may move in the direction of pressing the second spring 76 by an adjustment bolt 79 screwed into the coupling hole 74 provided at the end of the second cover 72. That is, when the user tightens the adjustment bolt 79, the adjustment bolt 79 pushes the second spring support member 78 toward the second spring 76, thereby compressing the second spring 76 and tightening the adjustment bolt 79. When released, the second spring 76 may be elastically restored while the second spring support member 78 is pushed out of the second spring 76. In this way, by compressing or decompressing the second spring 76 with the adjusting bolt 79, the elastic force of the second spring 76 applied to the diaphragm 64 can be adjusted.

In the liquefied gas pressure regulator 10 according to the present invention, as shown in FIG. 4, when the pressure in the diaphragm chamber 25 drops below a predetermined pressure, the diaphragm 64 may have an elastic force of the second spring 76. By moving toward the opening and closing member 42 by pushing the end of the pin portion 45 of the opening and closing member 42 toward the first cover 48. At this time, the opening and closing member 42 is pushed while compressing the first spring 54 so that the head 44 is spaced apart from the seat portion 39 of the sheet member 33 to open the orifice 36 of the opening and closing member 42. do.

When the orifice 36 is open, the gas flowing through the inflow passage 26 flows through the connecting passage 51 of the first cover 48 from the first chamber 22 and into the first cover 48. do. In addition, the gas introduced into the first cover 48 flows along the orifice 36, passes through the connection passage 37 of the sheet member 33, and guides through the connection hole 29 around the sheet member 33. Flows into the chamber 24. The gas introduced into the guide chamber 24 is discharged to the outside of the regulator body 20 through the discharge passage 27 connected to the guide chamber 24, and some of the gas in the guide chamber 24 passes through the through passage 62 of the partition member 56. By flowing through the diaphragm chamber 25, the pressure in the diaphragm chamber 25 becomes equal to the pressure in the guide chamber 24.

On the other hand, when the discharge of the gas through the discharge passage 27 is blocked, the pressure of the discharge passage 27, the guide chamber 24 connected to the discharge passage 27, the diaphragm chamber 25 connected to the guide chamber 24 is Will rise. When the pressure in the guide chamber 24 and the diaphragm chamber 25 rises above a certain pressure, the pressure causes the hard plate 65 of the diaphragm 64 to compress the second spring 76 while the second spring 76 is pressed. Go to (76).

When the hard plate 65 of the diaphragm 64 moves while compressing the second spring 76, as shown in FIG. 3, the hard plate 65 is spaced apart from the end of the pin portion 45 of the opening and closing member 42. In addition, the opening and closing member 42 moves toward the second chamber 23 by the elastic force of the first spring 54 and is in close contact with the sheet portion 39 of the sheet member 33. When the head 44 of the opening / closing member 42 is in close contact with the seat 39, the orifice 36 is sealed to block the flow of gas through the orifice 36, so that the gas flows inside the regulator body 20. This is stopped.

As described above, the liquefied gas pressure regulator 10 according to the present invention may be coupled to the gas container 90 in which the liquefied gas is stored, thereby stably reducing and providing a high pressure liquefied gas to a set pressure. It is easy to assemble and has excellent durability.

Meanwhile, in the present invention, the regulator body 20, the first cover 48, the second cover 72, the sheet member 33, the opening and closing member 42, the partition member 56, the diaphragm 64 The specific structure of the components constituting the liquefied gas pressure regulator 10 is not limited to the illustrated and may be variously changed. In addition, some components may be omitted by restructuring some of the components constituting the liquefied gas pressure regulator 10.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art can improve and modify the technical idea of the present invention in various forms. Accordingly, these modifications and variations are intended to fall within the scope of the present invention as long as it is obvious to those skilled in the art.

10: liquefied gas pressure regulator 20: regulator body
21: bulkhead 22, 23: first and second chamber
24: guide chamber 25: diaphragm chamber
26: inflow passage 27: discharge passage
29: connection hole 30: sieve
33: sheet member 34: plate portion
35: tube 36: orifice
37: connection passage 38: guide hole
39: seat portion 42: opening and closing member
43: body 44: head
45: pin part 48, 72: first and second cover
49, 73: first and second spring receiving groove 50: seat member cover portion
51: connection flow path 54, 76: first, second spring
56 partition member 57 partition plate
58: through hole 59, 60: first and second fence parts
64: diaphragm 65: hard plate
67: protrusion 69: soft pad
77, 78: first, second spring support member 79: adjustment bolt

Claims (8)

In the liquefied gas pressure regulator for providing a liquefied gas is liquefied gas is liquefied high pressure liquefied gas to low pressure,
A first chamber and a second chamber disposed to face each other with the partitions interposed therebetween, the ends of which are open to the outside; a connection hole formed in the partition wall to connect the first chamber and the second chamber; One side is opened to the outside so that the gas supplied from the container can be introduced to the outside and connected to the first chamber, and one side is connected to the second chamber to discharge the gas introduced into the second chamber to the outside A regulator body having an outlet passage open to the outside;
A first cover coupled to the regulator body to cover the first chamber and having a first spring receiving groove open at one side to be connected to the first chamber;
A sheet member installed in the first chamber to cover the connection hole, the sheet member having an orifice connecting the first chamber and the connection hole and a seat portion disposed around an end of the orifice;
A pin portion movably installed in the first chamber to open and close the orifice, having a width smaller than that of the orifice and inserted into the orifice, the end of which protrudes into the second chamber, and is coupled to the pin portion and connects the orifice An opening and closing member having a head wider than the orifice to open and close;
A first spring installed in the first spring receiving groove of the first cover to apply an elastic force to the opening / closing member in a direction in which the head contacts the seat;
A diaphragm elastically deformable in the second chamber so as to push the end of the fin portion protruding into the second chamber toward the first chamber to separate the head from the seat portion;
A second cover coupled to the regulator body to cover the second chamber, the second cover having a second spring receiving groove open at one side to be connected to the second chamber; And
And a second spring installed in the second spring receiving groove of the second cover to apply an elastic force in the direction in which the pin portion is pressed against the diaphragm.
The discharge passage is provided to extend from the partition wall to the outer surface of the regulator body,
A partition member is installed in the second chamber, and the second chamber is partitioned into a guide chamber connecting the connection hole and the discharge passage with the partition member interposed therebetween, and a diaphragm chamber for accommodating the diaphragm.
The guide chamber and the diaphragm chamber are liquefied gas pressure regulator, characterized in that the gas flow is connected through the through-hole provided in the partition member.
The method of claim 1,
The diaphragm is a hard plate having a pressing surface for pressing the end of the pin portion, and the hard plate so as to be interposed between the locking jaw provided around the inner side of the second chamber of the regulator body and the second cover. A soft pad disposed around the edge of the
The soft pad is a liquefied gas pressure regulator characterized in that the elastic plate is movable so as to support the hard plate.
3. The method of claim 2,
One surface of the hard plate is provided with a projection projecting toward the end of the fin portion larger than the width of the fin portion, the pressure surface is a liquefied gas pressure regulator, characterized in that provided in the projection.
delete The method of claim 1,
The pin portion of the opening and closing member passes through the guide chamber and the end thereof protrudes toward the diaphragm chamber through the through hole of the partition member.
Liquefied gas pressure regulator on one side of the partition member is provided so that the through passage for introducing the gas of the guide chamber into the diaphragm chamber together with the through hole is spaced apart from the through hole.
The method of claim 1,
A sheet member cover portion is provided at an end of the first cover to cover the sheet portion in contact with one surface of the sheet member, and the sheet member cover portion directs gas introduced into the first chamber toward the orifice inside the sheet member cover portion. Liquefied gas pressure regulator characterized in that the connection passage for flowing.
The method of claim 1,
The sheet member includes a plate portion which contacts the partition wall of the regulator body to cover the connection hole and has the sheet portion provided on one surface thereof, and a neck portion coupled to the other surface of the plate portion so as to be inserted into the connection hole of the partition wall.
The orifice extends from the sheet portion of the plate portion to the inside of the neck portion,
The neck portion is provided with a connection passage extending from the orifice to the outer surface of the neck portion, a guide hole extending from the orifice to the end of the neck portion to guide the pin portion inserted into the orifice to the second chamber,
The gas flowing into the orifice flows through the connecting passage to the second chamber through a gap between the outer surface of the neck portion and the inner surface of the partition wall.
The method of claim 1,
Liquefied gas pressure regulator characterized in that it further comprises a control bolt screwed through the second cover to the end of the second cover to compress the second spring to adjust the elastic force of the second spring.

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