CN203443752U - Device for dynamically detecting the sealing of gas meter valve - Google Patents
Device for dynamically detecting the sealing of gas meter valve Download PDFInfo
- Publication number
- CN203443752U CN203443752U CN201320508127.5U CN201320508127U CN203443752U CN 203443752 U CN203443752 U CN 203443752U CN 201320508127 U CN201320508127 U CN 201320508127U CN 203443752 U CN203443752 U CN 203443752U
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- China
- Prior art keywords
- valve
- liquid level
- shaped liquid
- sealed cavity
- seal chamber
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- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 239000000919 ceramic Substances 0.000 claims abstract description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 7
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 3
- 239000010931 gold Substances 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 3
- 238000006011 modification reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Abstract
The utility model relates to a device for dynamically detecting the sealing of a gas meter valve. One end of an air switch is externally connected with a gas source through a pressure adjusting valve, and the other end of the air switch is connected with a sealed cavity cap through a pressure meter. The head of the sealed cavity is in screw thread fit with the sealed cavity cap which is equipped with a valve bracket and a ceramic wiring terminal. The ceramic wiring terminal is connected to an outside program controller through a gold-plated copper needle. The sealed cavity is supported by a sealed cavity bracket. The tail of the sealed cavity is communicated with one end of a three-way distributor through a fast loading clamping chuck. The other end of the three-way distributor is connected with one end of a U-shaped liquid level pressure gauge through a ball valve and a rubber tube. The other end of the U-shaped liquid level pressure gauge is opened. A mobile P-V rule is arranged at one side of the U-shaped liquid level pressure gauge in a parallel way. The device has the advantages that the operation is simple, and the detected small leakage amount is rapid and visual to view.
Description
Technical field
The utility model belongs to detection technique field, is specifically related to a kind of detection of dynamic gas meter valve sealing device.
Background technology
According to CJ/T112-2008 IC-card diaphragm gas meter standard, the sealing of gas meter, flow meter Inner valve has been proposed to following requirement: " when valve is in closed condition, when admission pressure is 5kpa, the permission leakage rate of valve should not be greater than 0.55L/h.This is Static Detection valve seal, is equivalent to per minute leakage rate and should be greater than 9ML/min.And gas meter, flow meter actual operating mode is: when in gas meter, flow meter, valve need to be closed, it is to close gradually pressed under (admission pressure) state by top.Be that valve drives the valve plug sealing gasket that is assembled in valve rod top to move axially by micromotor, in then gradually close to valve rack sealing surface, valve plug sealing gasket surface is subject to from rightabout top power (admission pressure) with inch, therefore the sealing property (static sealing) under the pressure situation of its overall sealing performance (dynamic airtightness) Ying Yuwu top is distinguished to some extent.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of detection of dynamic gas meter valve sealing device.
The utility model comprises portable P-V chi, U-shaped liquid level manometer, pressure-regulating valve, air switch, tensimeter, programming controller, annular seal space block, ceramic wiring terminal, seal chamber support, seal chamber, Quick-mounting clamp head and threeway divider.
One end of air switch is by pressure-regulating valve external gas source, the other end is connected with annular seal space block by tensimeter, seal chamber head and annular seal space block threaded engagement, on annular seal space block, valve rack and ceramic wiring terminal are housed, ceramic wiring terminal is connected to outside programming controller by gold plated copper pin, seal chamber bracket supports seal chamber, seal chamber afterbody is by one end UNICOM of Quick-mounting clamp head and threeway divider, the other end of threeway divider is connected with one end of U-shaped liquid level manometer with sebific duct by ball valve, the U-shaped liquid level manometer other end is open, portable P-V chi is arranged side by side in U-shaped liquid level manometer one side.
The beneficial effects of the utility model: the utility model is to simulate on the basis of gas meter, flow meter actual operating mode, conventional sense instrument is made an adjustment and increased, and testing process has been done to improvement, to reach easy and simple to handle, quick, the directly perceived visible object of institute's micrometer leakage rate.If the leakage rate detecting by this device reaches in the critical field of CJ/T112-2008 simultaneously, can be considered detected another parts are further improved to internal control detection quality.
Accompanying drawing explanation
Fig. 1 is the utility model structural drawing.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.
As shown in Figure 1, the utility model comprises portable P-V chi 1, U-shaped liquid level manometer 2, pressure-regulating valve 3, air switch 4, tensimeter 5, programming controller 6, annular seal space block 7, ceramic wiring terminal 8, valve rack 10, seal chamber support 12, seal chamber 13, Quick-mounting clamp head 14, threeway divider 15, the first ball valve 16 and the second ball valve 17.
One end of air switch is by pressure-regulating valve external gas source, the other end is connected with annular seal space block by tensimeter, seal chamber head and annular seal space block threaded engagement, on annular seal space block, valve rack and ceramic wiring terminal are housed, ceramic wiring terminal is connected to outside programming controller by gold plated copper pin, seal chamber bracket supports seal chamber, seal chamber afterbody is by one end UNICOM of Quick-mounting clamp head and threeway divider, the other end of threeway divider is connected with one end of U-shaped liquid level manometer with sebific duct by the first ball valve, the U-shaped liquid level manometer other end is open, portable P-V chi is arranged side by side in U-shaped liquid level manometer one side.
The utility model course of work:
1. fixing after portable P-V chi 1 basal plane line being alignd with U-shaped liquid manometer liquid level.
2. the first ball valve A in threeway divider 15 is closed, the second ball valve B opens.
3. first open air switch 4, then by the requirement of different gas meter, flow meter working pressures, with pressure-regulating valve 3, adjust admission pressures, close again air switch after making admission pressure demonstrate desired force value in tensimeter 5 by air switch.
4. must detect valve on annular seal space block 7 fixing (now valve sealing face is in opening), and micromotor lead-out wire is inserted on ceramic wiring terminal 8 sockets.
5. after seal chamber 13 and block being screwed, be put on seal chamber support 12 and the Quick-mounting clamp head 14 that closes.
6. open air switch, start-up routine controller 6, valve Inner micromotor 11 rotates, by gear drive valve rod, move axially, now be assembled in 9 resistances that are subject to from gas inlet rubber tube Inner admission pressure of valve plug sealing gasket at valve rod top, valve plug sealing gasket is in the situation that constantly overcoming this resistance, to move closer to valve rack sealing surface, reaches the object (dynamic seal (packing)) that stops gas to continue to enter seal chamber.
7. the mensuration of valve sealing face leak pressure, leakage rate:
A. close the second ball valve B, open the first ball valve A, if now tightly there is not leakage sealing surface pass, gas leakage will enter U-shaped liquid level manometer 2 by the first ball valve A, to managing the liquid level of an interior side, there is a downward pressure, by the poor leak pressure that calculates of liquid level of two side pipe Inner.
B. a side that does not connect sebific duct at U-shaped liquid manometer is equipped with portable P-V chi 1, the height that observation is risen along P-V basal plane line at one minute inner tube Inner liquid level, this highly corresponding P-V chi volume scale mark is the gas volume that valve sealing face leaks at one minute Inner.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technology thereof, the utility model is also intended to comprise these changes and modification interior.
Claims (1)
1. a detection of dynamic gas meter valve sealing device, comprise portable P-V chi, U-shaped liquid level manometer, pressure-regulating valve, air switch, tensimeter, programming controller, annular seal space block, ceramic wiring terminal, seal chamber support, seal chamber, Quick-mounting clamp head and threeway divider, it is characterized in that:
One end of air switch is by pressure-regulating valve external gas source, the other end is connected with annular seal space block by tensimeter, seal chamber head and annular seal space block threaded engagement, on annular seal space block, valve rack and ceramic wiring terminal are housed, ceramic wiring terminal is connected to outside programming controller by gold plated copper pin, seal chamber bracket supports seal chamber, seal chamber afterbody is by one end UNICOM of Quick-mounting clamp head and threeway divider, the other end of threeway divider is connected with one end of U-shaped liquid level manometer with sebific duct by ball valve, the U-shaped liquid level manometer other end is open, portable P-V chi is arranged side by side in U-shaped liquid level manometer one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508127.5U CN203443752U (en) | 2013-08-20 | 2013-08-20 | Device for dynamically detecting the sealing of gas meter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320508127.5U CN203443752U (en) | 2013-08-20 | 2013-08-20 | Device for dynamically detecting the sealing of gas meter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443752U true CN203443752U (en) | 2014-02-19 |
Family
ID=50094790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320508127.5U Expired - Fee Related CN203443752U (en) | 2013-08-20 | 2013-08-20 | Device for dynamically detecting the sealing of gas meter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203443752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720550A (en) * | 2021-11-01 | 2021-11-30 | 新乡市天瑞液压设备有限公司 | Air tightness detection device for filter element production |
-
2013
- 2013-08-20 CN CN201320508127.5U patent/CN203443752U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720550A (en) * | 2021-11-01 | 2021-11-30 | 新乡市天瑞液压设备有限公司 | Air tightness detection device for filter element production |
| CN113720550B (en) * | 2021-11-01 | 2022-02-18 | 新乡市天瑞液压设备有限公司 | Air tightness detection device for filter element production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20210820 |