KR20120094328A

KR20120094328A - Burying type gas pressure regulator

Info

Publication number: KR20120094328A
Application number: KR1020110013766A
Authority: KR
Inventors: 박화서
Original assignee: 주식회사화성인더스트리
Priority date: 2011-02-16
Filing date: 2011-02-16
Publication date: 2012-08-24

Abstract

PURPOSE: A buried gas pressure regulator is provided to easily recognize the pressure values of a manometer or a differential pressure gauge, locating in a gas pressure regulator, in the outside and to easily obtain an installation space by miniaturizing the gas pressure regulator buried under the ground. CONSTITUTION: A buried gas pressure regulator comprises a filtering part(2), a pressure regulating part(3), a transferring pipe(8), and a stand(9). The filtering part comprises a gas inflow port(4), a partition wall for separating an emergency shut-off valve chamber and a filter chamber, a cylindrical housing(5), an entrance vent, a cylindrical filter, an inflow gas manometer(28), a differential pressure guage(29), a sealing palte(27), an emergency shut-off valve(20), and an anti-separation ring(25). The pressure regulating part comprises a gas discharge port(7), a cylindrical housing(6), an exit vent, a discharged gas manometer(70), a regulator(60), and a transparent cover(50). The transferring pipe is connected while passing through the lower part of the filtering part and a pressure regulating part to transfer gas. The stand provides a space, through which the transferring pipe is passed, at the lower part of the filtering part and the pressure regulating part and fixes the filtering part and the pressure regulating part on the ground to support.

Description

Buried Type Gas Pressure Regulator

The present invention relates to a gas pressure regulator buried underground to maintain a constant supply gas pressure, and more particularly, to a buried gas pressure regulator that improves the function and convenience of maintenance of the gas pressure regulator.

In general, the gas constant pressure regulator is to provide the city gas consumer with a suitable pressure for the use of the consumer's gas equipment for a stable gas supply. That is, the pressure of the gas supplied through the gas pipe is divided into high pressure, medium pressure, and low pressure, and a pressure regulator is applied to increase the gas transportation capacity and to efficiently operate the supply facilities such as piping. To this end, it is a city gas facility that supplies gas at an appropriate pressure for gas equipment by reducing the gas from high pressure to medium pressure and from medium pressure to low pressure. The constant pressure unit is installed in the proper place of the gas pipe, and maintains the secondary pressure corresponding to the working pressure at the outlet side at a constant pressure regardless of the primary pressure corresponding to the supply pressure at the inlet side and the load capacity according to the usage amount. . In addition, a pressure reducing device, a safety device, a monitoring device and the like are included in order to reduce the supply pressure to the working pressure according to the fluctuation of gas demand over time.

Conventionally, there is a pressure regulator including a separation cover of Korean Utility Model No. 20-0448053 as a gas pressure regulator. This is the separation cover is installed on the top of the pressure regulator cover to easily check whether the gas pressure control and pressure control. In addition, the separation cover is configured to be transparent so that the internal pressure gauge can be easily recognized.

In addition, there is a buried type pressure regulator of Korean Utility Model No. 20-0442170 as a prior art. This makes the overall size small to improve space utilization, simplify assembly / disassembly, transparent cover, automatic gas shutoff when gas pressure rises abnormally, and noise reduction. .

However, in the prior art, the structure is complicated, which is disadvantageous in miniaturization, and a gas transfer pipe of a certain distance is installed between the filtering unit and the constant pressure unit, which occupies a lot of installation space, and has a weak structure inherent in the risk of gas leakage due to external impact. consist of. In addition, there are many components according to the manufacture of the pressure regulator, and the assembly and separation time takes a lot, resulting in an increase in manufacturing cost and a weakness in maintenance and management.

An object of the present invention is to solve the above-mentioned problems of the prior art, it is easy to check the gas pressure inside the pressure regulator from the outside, easy to remove and combine, to reduce the maintenance and management costs by making small The purpose is to.

The present invention, in order to achieve the above object, in the gas constant pressure regulator to control the pressure of the introduced gas is constant, the inlet for the gas flow is formed on the lower side, the emergency shut-off valve chamber and the filter chamber in the inner center A partition wall having a central portion separated therethrough is formed, the cylindrical housing having an open top, an inlet vent for discharging gas inside the filter chamber to the outside of the partition wall at an upper part mounted through the partition wall, and a bottom of the housing under the partition wall. Cylindrical filter is fixed to the surface to filter the foreign matter contained in the inlet gas, screwed to the top of the partition, the inlet is formed through the center, the inlet gas pressure gauge to detect and display the pressure of the gas introduced through the inlet And a differential pressure gauge for detecting and displaying a difference between the gas pressure in the filter chamber and the gas pressure passing through the filter. The ring-shaped sealing plate combined with a pair of handles for mounting and dismounting, and the lower part penetrates through the center of the sealing plate to maintain the inside of the sealing plate and airtightness, the bottom surface is in close contact with the filter top, Located on the partition wall, the pressure transfer hose connected to the pressure from the constant pressure portion is coupled to the top, the pressure adjustment knob for pressure control at the top is provided with an emergency shut-off valve for automatically blocking the gas flowing into the inlet, and the upper position of the sealing plate And an anti-separation ring having protrusions formed on an outer circumference thereof, and a ring-shaped frame screwed to the housing upper flange with a fixing member, and an inner side of the frame including a transparent cover for hermetically fixing the upper part of the housing in a transparent dome shape. ; An outlet through which gas is discharged is formed at the lower side, and a partition wall is formed at the inner center through a central portion separating the pilot chamber and the cartridge chamber, and a cylindrical housing having an open upper portion and an upper portion mounted through the partition wall. An outlet vent for discharging the gas inside the cartridge chamber to the outside of the partition wall, an exhaust gas pressure gauge for sensing and displaying the gas pressure discharged to the outlet through the cartridge chamber, and screwed to an upper end of the partition wall, and transported from the filtering unit to the lower part The diaphragm and the orifice are opened and closed by the elastic force and the discharged gas pressure is coupled, and a pilot is mounted on one side to sense the gas pressure transferred from the filtering unit and amplify the driving pressure. Combined, a pair of handles for mounting and dismounting on one side is combined, pressure adjustment at the top A pressure adjusting knob is provided to adjust the gas discharged to the outlet, and a ring-shaped frame is screwed to the housing upper flange with a fixing member, and the inside of the frame is a transparent dome shape, which transparently fixes the upper part of the housing. Positive pressure unit including a cover; A conveying tube connected to each of the lower part of the filtering part and the constant pressure part to transfer gas; It provides a buried type gas pressure regulator comprising a; providing a space for the transport pipe passes under the filtering unit and the constant pressure unit, and a stand for holding and supporting the filtering unit and the constant pressure unit on the ground.

According to the present invention, by the above-mentioned solution, it is easy to secure the installation space by miniaturizing the gas constant pressure installed under the ground, the pressure value of the pressure gauge or the differential pressure gauge inside the pressure regulator can be easily recognized from the outside, the coupling of the lid It is easy to separate from, and the structure is simple, and maintenance and management of the pressure regulator is easy to reduce the maintenance cost.

1 is a perspective view showing a buried gas pressure regulator according to the present invention.
Figure 2 is an exploded perspective view showing a buried gas pressure regulator according to the present invention.
3 is a cross-sectional view showing a buried gas constant pressure regulator according to the present invention.
Figure 4 is a perspective view showing a state in which the lid of the filtering portion and the constant pressure portion of the investment-type gas pressure regulator according to the present invention.
5 is a perspective view showing an adjuster of the present invention.
6 is a plan view illustrating a state in which the emergency shutoff valve and the regulator are separated from the static pressure regulator of the present invention.
7 is a perspective view showing the housing in which the investment-type gas pressure regulator of the present invention is installed.

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

In FIG. 1, the investment-type gas pressure regulator 1 includes a filtering unit 2 for filtering and blocking a gas introduced through an inlet 4 from an external gas pipe, and a transfer pipe 8 in the filtering unit 2. After depressurizing the pressure of the gas introduced through the predetermined constant pressure, the pressure regulator 1 for discharging to the consumer through the outlet 7 is integrally provided. The filtering part 2 and the positive pressure part 3 are cylindrical shape and the upper part is open shape. The filtering unit 2 and the positive pressure unit 3 are connected to the spaced frame 80 at regular intervals. In addition, a lower portion of the filtering unit 2 and the positive pressure unit 3 is connected to the transfer pipe 8. Below the filtering unit 2 and the constant pressure unit 3 is fixedly coupled to the stand (9). The stand 9 can be fixed to the bottom surface, and the transfer pipe 8 is located inside the stand 9.

2 and 3, in the cylindrical housing 5 in which the upper part of the filtering part 2 is opened, an inlet 4 through which gas is introduced from the outside is formed at the lower side. In the center of the housing 5, a partition wall having a through hole 36 having a predetermined diameter is formed in a center of separating the Slam Shut Valve (SSV) chamber 41 and the filter chamber 40. 35) is formed. The partition wall 35 is provided with an inlet vent 37 mounted through the partition wall and discharging gas inside the filter chamber 40 to the outside of the partition wall 35. The inlet vent 37 is provided with an on-off valve to discharge the gas present in the filter chamber 40 to the outside. The inlet vent 37 makes it possible to discharge the gas in the filter chamber 40 at the time of abnormal occurrence or maintenance of the constant pressure regulator.

A cylindrical filter 32 is installed below the partition 35. The cylindrical filter 32 is installed on the outer periphery of the feed pipe 8 connected to the bottom of the partition wall 35 of the housing 5. The filter 32 is fixed to the bottom surface of the housing 5 under the partition 35 to filter foreign substances contained in the introduced gas. The filter 32 is a double metal mesh having a plurality of holes formed therein. There is a built-in filtering member that can filter out various foreign substances contained in the gas, such as synthetic resin or natural fibers.

A ring-shaped sealing plate 27 is screwed to the top of the partition 35. The sealing plate 27 has a central portion penetrated therethrough, and is provided with an inflow gas pressure gauge 28 for sensing and displaying the pressure of the gas introduced through the inlet 4 of the filtering unit 2. The inlet gas pressure gauge 28 is installed to detect the gas pressure of the filter chamber 40 through the through-hole formed in the sealing plate 27 and the partition wall 35. In addition, a differential pressure gauge 29 is installed on the sealing plate 27, and the differential pressure gauge 29 detects and displays a difference between the gas pressure in the filter chamber 40 and the gas pressure passing through the filter 32. The differential pressure gauge 29 detects and displays a pressure difference between the inside and the outside of the filter 32 when a large amount of foreign matter is attached to the filter 32 through the through hole formed in the sealing plate 27 and the partition wall 35. Therefore, the differential pressure gauge 29 is installed to detect the gas pressure of the filter chamber 40 and the gas pressure passing through the filter 32, respectively. In addition, a pair of handles 30 are mounted to the sealing plate 27 to the partition wall 35. The handle 30 is mounted at a corresponding position where the operator can lift the sealing plate 27 with both hands. Handle 30 is screwed to the sealing plate 27 is mounted to facilitate separation.

The sealing plate 27 is mounted on the separation preventing ring 25 above. The separation prevention ring 25 is formed with a plurality of protrusions 26 on the outer circumference. The position of the projection 26 is located at a plurality of screw positions for fixing the sealing plate 27 on the partition wall 35.

The emergency shutoff valve (SSV) 20 is to automatically shut off the gas flowing from the inlet 4 of the filtering unit 2, and the emergency shutoff valve 20 has a lower portion penetrating the center of the sealing plate 27. The sealing plate 27 is installed to maintain airtightness with the inside of the O-ring and the like. The upper part is located above the partition 35 position, and the pressure transfer hose 23 connected from the constant pressure part 3 is coupled to the upper part. The pressure shutoff knob 20 is provided at the top of the emergency shutoff valve 20. The emergency shutoff valve 20 is operated according to the gas pressure transmitted from the pressure transfer hose 23 connected to the positive pressure part 3 to block the gas supplied through the transfer pipe 8. The gas pressure value for the operation of the emergency shutoff valve 20 can be set by the pressure regulating knob 21.

The transparent cover 10 is screwed to the flange 5a formed on the housing 5 of the filtering unit 2 by the fixing member 12. The transparent cover 10 is provided with a frame 11 at the edge thereof in a ring shape, and a dome-shaped transparent material is applied to the inside of the frame 11. The transparent cover 10 fixes the upper part of the housing 5 to be hermetically fixed, and the fixing member 12 is coupled to the frame 11 so that an operator can easily separate and combine the tool without a separate tool. In addition, a groove 5b in which an O-ring 13 is inserted is formed on a surface of the flange 5a of the housing 5 of the filtering unit 2 to provide airtightness between the frames 11 provided at the edge of the transparent cover 10. Keep it. The o-ring 13 is coupled to the groove 5b formed in the flange 5a, which is such that the o-ring 13 is not easily separated from the groove 5b. This provides the convenience of the operation so that the O-ring 13 is not easily separated from the transparent cover 10 when the transparent cover 10 is separated from the housing 5.

The constant pressure part 3, which is installed side by side at a predetermined interval with the filtering part 2 and the spaced frame 80, is formed as a cylindrical housing 6 having an open top, and the gas supplied through the pipe to the receiver is discharged. An outlet 7 is formed on the lower side. A partition wall 75 having through holes 67 and 68 is formed in the center of the positive pressure part 3 separated by the pilot chamber 44 and the cartridge chamber 43.

The partition wall 75 includes an outlet vent 78 mounted through the partition wall and discharging gas inside the cartridge chamber 43 to the outside of the partition wall 75. The outlet vent 78 is provided with an on / off valve to discharge the gas present in the cartridge chamber 43 to the outside. The outlet vent 78 is for discharging the gas in the cartridge chamber 43 at the time of abnormal occurrence or maintenance of the pressure regulator.

One side of the partition wall 75 is provided with an exhaust gas pressure gauge 70 for detecting and displaying the pressure of the gas discharged from the cartridge chamber 43 through the outlet 7 of the positive pressure unit 3. Exhaust gas pressure gauge 70 is installed to detect the gas pressure of the cartridge chamber 43 through the through-hole formed in the partition wall (75).

The regulator 60 screwed to the top of the partition wall 75 has a diaphragm 64 and an orifice 65 for opening and closing the gas pressure transferred along the transfer pipe 8 from the filtering unit 2 by an elastic force at the lower portion thereof. ) Are combined. In FIG. 5, the diaphragm 64 is coupled to the center of the bottom surface of the adjuster 60, and the orifice 65 is coupled to the outer circumference of the diaphragm 64. The diaphragm 64 is elastically supported by a spring or the like. Orifice 65 has a disk-like radial groove. O-rings 67 and 68 are respectively coupled to grooves formed between the diaphragm 64 and the orifice 65 and the outer circumferential side of the orifice 65 on the lower surface of the adjuster 60. O-rings 67 and 68 are in close contact with the partition wall 75 to maintain airtightness. In FIG. 6, referring to the plan view of the partition wall 75 of the positive pressure part 3, a through hole 76 is formed in the center of the partition wall 75, and an arc-shaped through hole is formed outside the through hole 76. A plurality of 77 are formed. The diaphragm 64 is positioned to coincide with the through hole 76 formed at the center of the partition wall 75, and the orifice 65 is positioned to coincide with the through hole 77 formed at the outer circumference of the center through hole 76. Therefore, the diaphragm 64 is connected to the end of the transfer pipe 8 so that the gas supplied along the transfer pipe 8 flows in, and the gas passing through the diaphragm 64 passes through the orifice 65 to the cartridge chamber 43. Is discharged. The o-ring 67 is therefore located between the diaphragm 64 and the orifice 65 and the o-ring 68 is located between the orifice 65 and the outside.

One side of the regulator 60 is equipped with a pilot 63 for amplifying the driving pressure by sensing the gas pressure transferred from the filtering unit 2, the pressure transfer hose 23 connected to the filtering unit 2 is coupled to the upper portion do. And a pair of handles 62 for mounting and detachment is coupled to one side of the regulator 60, the pressure control knob 61 for pressure control is provided at the top. The handle 62 is mounted at a corresponding position where the operator can lift the adjuster 60 with both hands. Handle 62 is screwed to the adjuster 60 is mounted to facilitate separation.

The transparent cover 50 is screwed to the flange 6a formed in the housing 6 of the positive pressure part 3 by the fixing member 52. The transparent cover 50 is provided with a frame 51 at the edge thereof in a ring shape, and a dome-shaped transparent material is applied to the inside of the frame 51. Transparent cover 50 is to fix the upper portion of the housing 6, the fixing member 52 is coupled to the frame 51 so that the operator can easily separate and coupled without a separate tool. In addition, a groove 5b in which an O-ring 53 is inserted is formed on the surface of the flange 6a of the housing 6 of the positive pressure part 3 to maintain airtightness between the frames 51 provided at the edge of the transparent cover 50. Let's do it. The o-ring 53 is coupled to the groove 6b formed in the flange 6a, which is such that the o-ring 53 is not easily separated from the groove 6b. This provides the convenience of the operation so that the O-ring 53 is not easily separated from the transparent cover 50 when the transparent cover 50 is separated from the housing 6.

According to the present invention, the gas introduced through the inlet 4 provided in the housing 5 of the filtering unit 2 is filtered by the foreign matter contained in the gas in the filter 32 of the filter chamber 40, and the filter 32. The gas passed through the delivery pipe 8 is delivered to the cartridge chamber 43 after the gas pressure is positively pressured through the diaphragm 64 and the orifice 65 in the regulator 60 of the positive pressure section 3 through the transfer pipe 8, and the cartridge chamber Gas delivered to 43 is to be supplied through the pipe to the customer through the outlet 7 of the constant pressure section (3).

In the inlet and outlet of the gas, the inlet gas pressure gauge 28, the differential pressure gauge 29 and the exhaust gas pressure gauge 70 respectively detect and display the gas pressure. In addition, the gas pressure adjusted under reduced pressure in the regulator 60 is transmitted to the pressure transfer hose 23 connected between the regulator 60 and the emergency shutoff valve 20. At this time, the emergency shut-off valve 20 blocks the inlet of the transfer pipe 8 when the pressure of the pressure-reduced gas pressure is higher or higher than the set pressure, so that gas is not supplied from the filtering part 2 to the positive pressure part 3. Block it.

In FIG. 7, the pressure regulator 1 of the present invention is installed in a housing 90 buried under the ground, and a control box including an operation or sensing device of various valves including the pressure regulator 1 on the enclosure 90 ( 91) is installed. Therefore, the installation of the pressure regulator 1 does not appear on the ground.

Furthermore, the gas pressure and the differential pressure of the filtering unit 2 through the transparent covers 10 and 50 respectively coupled to the upper end of the filtering unit 2 and the constant pressure unit 3 of the investment-type gas pressure regulator 1 according to the present invention, and The gas pressure in the constant pressure section 3 can be easily monitored and checked.

Therefore, the investment-type gas pressure regulator 1 of the present invention has the advantage that it can be miniaturized and easy to maintain and manage.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it will be readily apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit and scope of the invention. It is obvious that all modifications fall within the scope of the appended claims.

DESCRIPTION OF SYMBOLS 1 Constant pressure machine 2: Filtering part 3: Positive pressure part 4: Inlet 5, 6: Housing 7: Outlet 8: Transfer pipe 9: Stand 10, 50: Cover 11, 51: Frame 12. 52: Fixing member 13, 53, 67 , 68: O-ring 20: emergency shutoff valve 21, 61: pressure regulating valve 23: pressure transfer hose 25: separation prevention ring 26: projection 27: sealing plate 28: inlet gas pressure gauge 29: differential pressure gauge 30, 62: knob 32: filter 35 , 75: bulkhead 36, 76, 77: through hole 37: inlet vent 40: filter chamber 41: emergency shutoff valve chamber 43: cartridge chamber 44: pilot chamber 60: regulator 63: pilot 64: diaphragm 65: orifice 70: Exhaust gas pressure gauge 78: Outlet vent 80: Spaced frame 90: Enclosure 91: Control box

Claims

In the gas constant pressure regulator to supply a constant control the pressure of the introduced gas,
An inlet 4 through which gas is introduced is formed at the lower side, and a partition wall 35 through which a central portion separating the emergency shutoff valve chamber 41 and the filter chamber 40 is formed is formed at the inner center thereof. A cylindrical housing 5, an inlet vent 37 for discharging gas inside the filter chamber 40 to the outside of the partition wall 35 mounted through the partition wall 35, and under the partition wall 35. The cylindrical filter 32 fixed to the bottom of the housing 5 to filter out foreign substances contained in the introduced gas, and screwed to the upper end of the partition 35, the central portion is formed through, the inlet (4) An inlet gas pressure gauge 28 is installed to sense and display the pressure of the gas introduced through the differential pressure gauge 29, which detects and displays a difference between the gas pressure in the filter chamber 40 and the gas pressure passing through the filter 32. ) Is installed, ring-shaped mill combined with a pair of handles 30 for mounting and detachment The closing plate 27 and the lower part penetrate the center of the sealing plate 27 to maintain airtightness with the inside of the sealing plate 27, and the lower surface is in close contact with the upper end of the filter 32, and the upper part is positioned above the partition 35. And, the pressure transfer hose 23 is coupled to the upper portion from the constant pressure unit 3, the pressure control knob 21 for pressure control is provided at the upper end of the emergency shutoff to automatically shut off the gas flowing into the inlet (4) The valve 20, the separation preventing ring 25 positioned on the sealing plate 27 and the protrusion 26 formed on the outer circumference thereof, and the ring-shaped frame 11 include the upper flange 5a of the housing 5. A filtering part 2 including a transparent cover 10 which is screwed to the fixing member 12, and the frame 11 inside the frame 11 to seal the upper part of the housing 5 in a transparent dome shape;
An outlet 7 through which gas is discharged is formed at the lower side, and a partition wall 75 through which a center portion separating the pilot chamber 44 and the cartridge chamber 43 is formed is formed at the inner center, and the cylinder is open at the top. Through the housing 6, the outlet vent 78 for discharging the gas inside the cartridge chamber 43 to the outside of the partition wall 75 mounted through the partition wall 75, and through the cartridge chamber 43 A gas pressure gauge 70 for sensing and displaying a gas pressure discharged to the outlet 7 and a screw coupled to an upper end of the partition wall 75 and opening and closing the gas pressure transferred from the filtering unit 2 to the lower part by an elastic force. The diaphragm 64 and the orifice 65 are coupled to each other, and a pilot 63 for amplifying the driving pressure by detecting the gas pressure transferred from the filtering unit 2 is mounted on one side thereof, and the filtering unit ( 2) is connected to the pressure transfer hose (23) connected to, and the mounting and separation on one side A pair of handles 62 are coupled to each other, and a pressure control knob 61 is provided at the top to adjust the gas discharged to the outlet 7 and the ring-shaped frame 51. ) Is screwed to the upper flange (6a) of the housing (6) with a fixing member (52), and the inside of the frame (51) includes a transparent cover (50) for hermetically fixing the upper part of the housing (6) in a transparent dome shape. Positive pressure section 3 to be;
A conveying pipe 8 connected through the filtering part 2 and the lower part of the constant pressure part 3 to transfer gas;
A stand 9 which provides a space for the transfer pipe 8 to pass under the filtering unit 2 and the static pressure unit 3 and fixes and supports the filtering unit 2 and the static pressure unit 3 on the ground; Buried gas constant pressure comprising a.

The method according to claim 1, buried gas constant pressure coupled to the separation frame 80 for spaced apart at regular intervals on the filtering unit (2) and the constant pressure unit (3).

The frame 11 of claim 1, wherein a groove 5b in which an O-ring 13 is inserted is formed on a surface of the flange 5a of the housing 5 of the filtering unit 2, and is provided at an edge of the transparent cover 10. ) To maintain airtightness, and a groove 5b having an O-ring 53 inserted therein is formed on a surface of the flange 6a of the housing 6 of the positive pressure part 3 and is provided at the edge of the transparent cover 50. A buried gas constant pressure regulator for maintaining the airtight between the 51 and the plurality of O-rings (67, 68) integrally coupled to the bottom surface of the regulator (60) to maintain the airtight between the surface of the partition wall (75).