CN201202860Y - Low pressure regulating valve of gas meter - Google Patents
Low pressure regulating valve of gas meter Download PDFInfo
- Publication number
- CN201202860Y CN201202860Y CNU2008200635141U CN200820063514U CN201202860Y CN 201202860 Y CN201202860 Y CN 201202860Y CN U2008200635141 U CNU2008200635141 U CN U2008200635141U CN 200820063514 U CN200820063514 U CN 200820063514U CN 201202860 Y CN201202860 Y CN 201202860Y
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- Prior art keywords
- gas meter
- low pressure
- shell body
- upper shell
- pressure regulating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001105 regulatory effect Effects 0.000 title claims description 57
- 238000007789 sealing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 4
- 208000002925 dental caries Diseases 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 14
- 239000003345 natural gas Substances 0.000 abstract description 7
- 239000011258 core-shell material Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 61
- 239000000567 combustion gas Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Abstract
The utility model discloses a natural gas gauge low-pressure adjusting valve which is characterized in that the natural gas gauge low-pressure adjusting valve comprises an outer shell and a valve core encapsulated in the outer shell; the valve core comprises a valve core shell; the valve core also comprises a spring, a shaft, a diaphragm piece, a nut and a signal tube which are encapsulated in the valve core shell; the shaft is arranged in the valve core; a valve plate is arranged on the connection position where the shaft is connected with the outer lower shell; the diaphragm piece is nested on the middle part of the shaft; a spring is arranged on the periphery of the shaft above the diaphragm; the lower end of the spring is clamped on the inner supper shell; the lower end of the spring is clamped on the diaphragm piece nested on the shaft; the nut is arranged under the diaphragm piece; a liner plate is cushioned above the diaphragm piece. The natural gas gauge low-pressure adjusting valve has the advantages of simple and reasonable structure, small volume, light weight, low price, convenient operation, convenient application and effectively adjusting the intake pressure of the natural gas gauge.
Description
Technical field
The utility model relates to the natural gas supply technical field, is specifically related to a kind of gas meter low pressure regulating pressure valve that is used to regulate gas pressure.
Background technique
Along with the development of society, the height of building construction is more and more higher, adopts each Lou Dong unit with an independent main pipe low-pressure fuel gas to be transported to each user of this unit in the past, and this way is not all right.Because along with increasing of floor, an independent standpipe will cause each user's supply gas pressure inhomogeneous.Some gas companies adopt two even many standpipe segmentation air feed in order to address this problem now; The employing that also has increases a building accent compressor in the middle of floor way solves.Adopt above way all can increase the complexity of cost of material, installation cost and installation.
The model utility content
The purpose of this utility model is the deficiency that solves in the above-mentioned background technology, a kind of gas meter low pressure regulating pressure valve is provided, that this gas meter low pressure regulating pressure valve has is simple and reasonable, volume is little, advantage such as cheap, easy to install, and it can regulate the suction pressure of natural gas meter effectively.
For reaching the foregoing invention purpose, the technological scheme that is adopted is: a kind of gas meter low pressure regulating pressure valve is characterized in that: described gas meter low pressure regulating pressure valve comprises frame and is encapsulated in the interior spool of frame; Described frame comprises outer upper shell and outer lower shell body, and outer upper shell and outer lower shell body link together by screw; Described spool comprises the spool housing and is encapsulated in spool housing interior spring, axle, diaphragm, nut and signal tube; Upper shell and interior lower shell body in described spool housing comprises, interior upper shell and interior lower shell body link together by screw; Be provided with axle in the described spool, on the upper shell, lower shell body was connected on the outer lower shell body in the lower end of axle was passed in the upper end of axle was connected to; Described axle is provided with valve block with outer lower shell body joint; The middle part of described axle is socketed with a diaphragm, and described diaphragm is separated into separate two cavitys up and down with spool; The lower shell body bottom has notch in described, and the spool cavity of resorption communicates with valve core inside, and the spool epicoele communicates with gas meter by signal tube; Be provided with spring around the axle of described diaphragm top, on the upper shell, the spring lower end was connected on the diaphragm that is socketed on the axle in the spring lower end was connected to; Described diaphragm below is provided with nut, and diaphragm top pad is provided with a liner plate.
According to gas meter low pressure regulating pressure valve provided by the utility model, it is characterized in that: the outer upper shell of described gas meter low pressure regulating pressure valve is provided with and is used for the screw thread or the flange plate that are connected with admission line, and outer lower shell body is provided with and is used for the screw thread or the flange plate that are connected with gas meter.
According to gas meter low pressure regulating pressure valve provided by the utility model, it is characterized in that: described gas meter low pressure regulating pressure valve is installed in the joint of entrance point of gas meter, outer upper shell is provided with support and the sealing configuration that links into an integrated entity by screw and gas meter, and described outer upper shell is by O type circle and joint sealing.
According to gas meter low pressure regulating pressure valve provided by the utility model, it is characterized in that: described outer upper shell and outer lower shell body adopt metallic material or plastic materials to make.
According to gas meter low pressure regulating pressure valve provided by the utility model, it is characterized in that: described outer upper shell and outer lower shell body joint also are provided with the external sealed pad; The joint of upper shell and interior lower shell body also is provided with interior sealing gasket in described.
By top narration as can be seen, the utlity model has following advantage: this gas meter low pressure regulating pressure valve has simple and reasonable, the little light weight of volume, advantage such as cheap, easy for operation, and it can regulate the suction pressure of natural gas meter effectively.
Description of drawings
Fig. 1 is the gas meter structural drawing that built-in low pressure regulating pressure valve is installed;
Fig. 2 is the stereogram of built-in low pressure regulating pressure valve;
Fig. 3 is the worm's eye view of built-in low pressure regulating pressure valve;
Fig. 4 is the sectional drawing of built-in low pressure regulating pressure valve;
Fig. 5 is the stereogram of external low pressure regulating pressure valve;
Fig. 6 is the worm's eye view of external low pressure regulating pressure valve;
Fig. 7 is the sectional drawing of external low pressure regulating pressure valve;
Fig. 8 is the assembling schematic diagram of built-in low pressure regulating pressure valve.
Wherein, 1, outer upper shell; 2, outer lower shell body; 3, interior upper shell; 4, interior lower shell body; 5, screw; 6, spring; 7, axle; 8, liner plate; 9, diaphragm; 10, nut; 11, signal tube; 12, valve block; 13, screw; 14, interior sealing gasket; 15, external sealed pad; 16, support.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described:
Fig. 1 is the gas meter structural drawing that built-in low pressure regulating pressure valve is installed; Fig. 2 is the stereogram of built-in low pressure regulating pressure valve; Fig. 3 is the worm's eye view of built-in low pressure regulating pressure valve; Fig. 4 is the sectional drawing of built-in low pressure regulating pressure valve; Fig. 8 is the assembling schematic diagram of built-in low pressure regulating pressure valve.As shown in FIG., a kind of gas meter low pressure regulating pressure valve is characterized in that: described gas meter low pressure regulating pressure valve comprises frame and is encapsulated in the interior spool of frame; Described frame comprises outer upper shell 1 and outer lower shell body 2, and outer upper shell 1 and outer lower shell body 2 link together by screw 13; Described spool comprises the spool housing and is encapsulated in the interior spring 6 of spool housing, axle 7, diaphragm 9, nut 10 and signal tube 11; Upper shell 3 and interior lower shell body 4 in described spool housing comprises; Upper shell 3 and interior lower shell body 4 link together by screw 5 in described; Be provided with axle 7 in the described spool, on the upper shell 3, lower shell body 4 was connected on the outer lower shell body 2 in the lower end of axle 7 was passed in the upper end of axle 7 was connected to; Described axle 7 is provided with valve block 12 with outer lower shell body 2 joints; The middle part of described axle 7 is socketed with a diaphragm 9, and described diaphragm 9 is separated into separate two cavitys up and down with spool; Lower shell body 4 bottoms have notch in described, and the spool cavity of resorption communicates with valve core inside, and the spool epicoele communicates with gas meter by signal tube 11; Be provided with spring 6 around the axle 7 of described diaphragm 9 tops, on the upper shell 3, spring 6 lower ends were connected on the diaphragm 9 that is socketed on the axle 7 in spring 6 lower ends were connected to; Described diaphragm 9 belows are provided with nut 10, and diaphragm 9 top pads are provided with a liner plate 8.Described outer upper shell 1 and outer lower shell body 2 joints also are provided with external sealed pad 15; Sealing gasket 14 in the joint of upper shell 3 and interior lower shell body 4 also is provided with in described.
Described gas meter low pressure regulating pressure valve is installed in the joint of entrance point of gas meter, and outer upper shell 1 is provided with support 16 and the sealing configuration that links into an integrated entity by screw and gas meter, and described outer upper shell 1 is by O type circle and joint sealing.Described outer upper shell 1 and outer lower shell body 2 adopt plastic materials to make.
Fig. 5 is the stereogram of external low pressure regulating pressure valve; Fig. 6 is the worm's eye view of external low pressure regulating pressure valve; Fig. 7 is the sectional drawing of external low pressure regulating pressure valve.As shown in FIG., the external low pressure regulating pressure valve is with the difference of built-in low pressure regulating pressure valve: the outer upper shell 1 of external low pressure regulating pressure valve is provided with and is used for the screw thread or the flange plate that are connected with admission line, and outer lower shell body 2 is provided with and is used for the screw thread or the flange plate that are connected with gas meter; Described outer upper shell 1 and outer lower shell body 2 adopt metallic material to make.
Gas meter low pressure regulating pressure valve provided by the utility model both can be installed in the inlet end (external low pressure regulating pressure valve) of gas meter outside, also can be installed in gas meter inside (built-in low pressure regulating pressure valve).The external low pressure regulating pressure valve need be in the erecting bed installation, and built-in low pressure regulating pressure valve does not need on-the-spot the installation by the inside that gas meter manufacturer directly is installed to pressure regulator valve gas meter.
No matter be the external low pressure regulating pressure valve, or built-in low pressure regulating pressure valve, the principle of its pressure regulation all is the same.Be that example is described as follows its operating principle now with built-in low pressure regulating pressure valve:
Built-in low pressure regulating pressure valve is installed in the joint of entrance point of gas meter, the outer upper shell of built-in low pressure regulating pressure valve is by O type circle and joint sealing, thereby guarantees that the inside of built-in low pressure regulating pressure valve and gas meter separate fully.Support and packing ring on the outer upper shell of built-in low pressure regulating pressure valve link into an integrated entity by screw.
If the gas pressure intensity of admission line is P
a, the gas pressure that acts on the diaphragm is F
aThe back pressure of pressure regulation (being the inlet pressure of gas meter) is P
b, the gas pressure that acts on the diaphragm is F
bThe pressure of spring is F
k, the decrement of spring is δ
xThe useful area of diaphragm is S, and valve port area is S
1Then there is following relation:
F
a＝P
a*S
F
b＝P
b*S
F
k＝K*δ
x
The stressed relation of diaphragm is:
(1) when spring is in extreme length, the pre compressed magnitude of spring is δ
X1
F
k+F
b＝F
a (1)
This moment, valve was closed fully.
(2) as the back pressure P of pressure regulator valve
bDuring less than setting (regulation) value:
F
k+F
b<F
a (2)
This moment, valve was opened fully, for gas meter replenishes combustion gas, increased the pressure of combustion gas.
(3) as the back pressure P of pressure regulator valve
bDuring greater than setting (regulation) value:
F
k+F
b>F
a (3)
This moment, valve was closed fully, and pipeline no longer provides combustion gas in gas meter.
(1), this pressure regulator valve reset condition is closed condition, when the gas stream of pipeline fashionable, the gas pressure F of pipeline
aAct on the diaphragm, according to the stressed explanation of formula (1), this moment F
b=0, diaphragm drives valve block and moves upward, and leaves valve port, even opens fully.This moment, the gas of pipeline flowed in the gas meter by valve port, and used for the user by gas meter metering back.Gas in the gas meter also flows into the epicoele of diaphragm by signal tube simultaneously.
(2) because signal tube imports to the epicoele of diaphragm with the gas of gas meter, along with P
bIncrease to gradually more than the setting value by 0, diaphragm drives valve block and moves to valve port gradually, works as F
k+ F
b〉=F
aThe time, valve block closes valve port, stops combustion gas to continue to flow into gas meter.
(3) close valve port when valve block, the pressure P in the gas meter
bLess than after setting pressure, pressure regulator valve repeats the action of (), thereby realizes adjusting the purpose of pressure regulator valve outlet pressure, has also just realized the purpose of automatic pressure regulation gradually.
Above-mentioned promptly is the basic voltage-regulation principle of gas meter low pressure regulating pressure valve provided by the utility model.
Directly with the combustion gas pressure regulation in the standpipe in building to 10KPa, thereby guarantee whole unit user's supply gas pressure stable and uniform, but the pressure of pipeline is greater than the working pressure of gas meter, therefore after external pressure regulator valve or built-in pressure regulator valve pressure regulation being passed through in the combustion gas in the standpipe, entering gas meter inside measures, gas pressure in the gas meter remains the working pressure of gas meter, therefore to gas company with not causing economic loss per family.
Though described mode of execution of the present utility model in conjunction with the accompanying drawings, the protection domain that those of ordinary skills do not need various distortion that creativity work just can make or modification still to belong to this patent within the scope of the appended claims.
Claims (5)
1, a kind of gas meter low pressure regulating pressure valve is characterized in that: described gas meter low pressure regulating pressure valve comprises frame and is encapsulated in the interior spool of frame; Described frame comprises outer upper shell (1) and outer lower shell body (2), and outer upper shell (1) and outer lower shell body (2) link together by screw (13); Described spool comprises the spool housing and is encapsulated in the interior spring (6) of spool housing, axle (7), diaphragm (9), nut (10) and signal tube (11); Described spool housing comprises interior upper shell (3) and interior lower shell body (4); Upper shell (3) and interior lower shell body (4) link together by screw (5) in described; Be provided with axle (7) in the described spool, the upper end of axle (7) is connected on the interior upper shell (3), and the lower end of axle (7) is passed interior lower shell body (4) and is connected on the outer lower shell body (2); Described axle (7) is provided with valve block (12) with outer lower shell body (2) joint; The middle part of described axle (7) is socketed with a diaphragm (9), and described diaphragm (9) is separated into separate two cavitys up and down with spool; Lower shell body (4) bottom has notch in described, and the spool cavity of resorption communicates with valve core inside, and the spool epicoele communicates with gas meter by signal tube (11); Be provided with spring (6) around the axle (7) of described diaphragm (9) top, spring (6) lower end is connected on the interior upper shell (3), and spring (6) lower end is connected on the diaphragm (9) that is socketed on the axle (7); Described diaphragm (9) below is provided with nut (10), and diaphragm (9) top pad is provided with a liner plate (8).
2, gas meter low pressure regulating pressure valve according to claim 1, it is characterized in that: the outer upper shell (1) of described gas meter low pressure regulating pressure valve is provided with and is used for the screw thread or the flange plate that are connected with admission line, and outer lower shell body (2) is provided with and is used for the screw thread or the flange plate that are connected with gas meter.
3, gas meter low pressure regulating pressure valve according to claim 1, it is characterized in that: described gas meter low pressure regulating pressure valve is installed in the joint of entrance point of gas meter, outer upper shell (1) is provided with support (16) and the sealing configuration that links into an integrated entity by screw and gas meter, and described outer upper shell (1) is by O type circle and joint sealing.
4, gas meter low pressure regulating pressure valve according to claim 1 is characterized in that: described outer upper shell (1) and outer lower shell body (2) adopt metallic material or plastic materials to make.
5, gas meter low pressure regulating pressure valve according to claim 1 is characterized in that: described outer upper shell (1) and outer lower shell body (2) joint also are provided with external sealed pad (15); The joint of upper shell (3) and interior lower shell body (4) also is provided with interior sealing gasket (14) in described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200635141U CN201202860Y (en) | 2008-05-26 | 2008-05-26 | Low pressure regulating valve of gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200635141U CN201202860Y (en) | 2008-05-26 | 2008-05-26 | Low pressure regulating valve of gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201202860Y true CN201202860Y (en) | 2009-03-04 |
Family
ID=40425171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200635141U Expired - Fee Related CN201202860Y (en) | 2008-05-26 | 2008-05-26 | Low pressure regulating valve of gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201202860Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913101A (en) * | 2014-02-25 | 2015-09-16 | 费希尔控制国际公司 | Actuator apparatus with internal tubing and anti-rotation mechanism |
| CN111911636A (en) * | 2020-08-03 | 2020-11-10 | 江苏圣泰阀门有限公司 | Three-eccentric hard sealing butterfly valve |
-
2008
- 2008-05-26 CN CNU2008200635141U patent/CN201202860Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913101A (en) * | 2014-02-25 | 2015-09-16 | 费希尔控制国际公司 | Actuator apparatus with internal tubing and anti-rotation mechanism |
| CN111911636A (en) * | 2020-08-03 | 2020-11-10 | 江苏圣泰阀门有限公司 | Three-eccentric hard sealing butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20110526 |