CN2485641Y - Dual safety damped pressure sensor - Google Patents
Dual safety damped pressure sensor Download PDFInfo
- Publication number
- CN2485641Y CN2485641Y CN 01228478 CN01228478U CN2485641Y CN 2485641 Y CN2485641 Y CN 2485641Y CN 01228478 CN01228478 CN 01228478 CN 01228478 U CN01228478 U CN 01228478U CN 2485641 Y CN2485641 Y CN 2485641Y
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- Prior art keywords
- pressure
- utility
- model
- wall
- tensimeter
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- Expired - Fee Related
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Abstract
The utility model relates to a dual-protection cushion pressure tapping device used for pressure tapping of oil field and oil water wellhead pressure gauge. The utility model is characterized in that the outer wall of a pressure transmitting tube(3) is provided with a plurality of convex edges to make the space between the adjacent convex edges is provided with a seal ring(13); the cavity of the pressure transmitting tube(3) is provided with a piston(7) which moves inside the cavity; and the upper part of the convex edge of the outer wall of the pressure transmitting tube(3) is fixed by a pressure transmitting sleeve(2) which is provided with a fixing screw(14) and is positioned at the bottom end of the inner wall, after being winded with a spring(4). The utility model has the advantages of having cushion function, avoiding the impact on the meter form high voltage, and accurate detected data. The utility model is suitable to be widely used in oil filed.
Description
The utility model relates to a kind of oil-water well mouth pressure table pressure obtaning device, and particularly antitheft antifreeze two anti-pressure gauge with fast quick-acting cushions pressure obtaning device.
The PRESSURE DATA of the oil-water well in oil field is that matter analysis and research in oil supply field provide reliable and crucial data by the pressure in the well head admission well mostly.But tensimeter commonly used is to transmit pressure by piston, and demonstrates wellhead pressure on tensimeter.Can be difficult to make the data of enrolling to conform to the actual pressure data owing to the pressure transmission link, error be bigger, creates a false impression and influences production to actual production situation.Moreover pressure obtaning device commonly used now adopts Bourdon tube pressure gauge mostly, this tensimeter is in use opened in a flash, high pressure (generally all more than 15Mpa) has great impact power to instrument, every day, instrument all will be born tens impacts, table inner spring pipe is easy to distortion, causes the inaccurate or damage of pressure measurement.Increase labour intensity to the workman, cause the goods and materials waste.
The purpose of this utility model is to avoid the deficiency of above-mentioned technology, and provides a kind of pressure measurement the accurate and on-deformable dual safety damped pressure obtaning device of table inner spring.
The purpose of this utility model can reach by the following technical programs: this dual safety damped pressure obtaning device is made up of tensimeter, pressure transmission cover, pressure tube, piston, the tensimeter pressure transmission cover that links to each other, it is characterized in that: the pressure tube outer wall has the feasible groove that has O-ring seal to fill between fin that faces mutually of some fins, the pressure tube inner chamber has piston to move, and is had the pressure transmission cover of fixed screw fixing by the inwall bottom after pressure tube outer wall fin top is wound with spring.
Above-mentioned pressure tube outer wall fin has 3.
The utility model has following advantage than above-mentioned prior art: because this pressure obtaning device can make measured medium directly be delivered on the tensimeter from the pressure transmission siphunculus by piston, and not loss midway, measured data is accurate; Because spring exists, and can make this device that pooling feature is arranged, and has avoided the impact of high pressure to instrument, the spring in the tensimeter is not yielding; Moreover be connected with well head pressure measurement seat by pressure cap, be convenient for carrying, stop stolen and by being frozen phenomenon, applicability is very strong, is convenient to promote the use of.
Accompanying drawing 1 is that structure of the present utility model is cutd open figure;
Accompanying drawing 2 is the conventional structure graphs when pressure measurement not.
Below in conjunction with accompanying drawing the utility model is further described:
In conjunction with shown in Figure 2, this pressure obtaning device is made up of tensimeter 1, pressure transmission cover 2, pressure tube 3, piston 8 as Fig. 1, the tensimeter 1 pressure transmission cover 2 that links to each other, and 2 bottom outer walls are overlapped in pressure transmission boss, is that pressure cap 5 overlaps on 6 at switch pressure transmission cover 2 covers are solid; As shown in Figure 2, switch overlaps 6 external thread firm bankings 12, and the gap of switch plunger 8 usefulness O-ring seal (9,10) enclosed switchs cover 6 with the piston 8 of through hole 11 is axially arranged, wherein the last axle base of switch cover 6 is a positive number with following distance between axles deviation, makes medium to enter pressure tube 3 from through hole 11.Pressure tube 3 outer walls have 3 fins to make to face mutually between fin fluted sealed circle 13 fill, and are wound with spring 4 on the fin of top, and spring 4 is seated on the fin; There is piston 7 to move at pressure tube 3 inner chambers, tight in order to seal, add O-ring seal 7 at piston 7 and pressure tube 3 inwalls, there are pressure transmission cover 2 covers of fixed screw 14 fixing by the inwall bottom afterwards.
This pressure obtaning device is welded on the well head pipeline by the base 12 of switch cover 6 under the regular situation.When needs pressure power, following aims at the groove of pistons 8 pressure tube in the pressure transmission cover 2 of dress tensimeter 13, pushes down the boss of pressure transmission cover 2 then with pressure cap 5, and screw thread precession switch cover 6 dwindles pressure transmission cover 2 this moment gradually and overlaps 6 gap with switch simultaneously.Piston 8 is temporarily motionless under the effect of pressure, and impels pressure tube 3 up, and spring 4 is progressively compressed, and is marked with non-congealable oil in tensimeter 1, pressure transmission cover 2 and pressure transmission through rod 3 cavitys.Also be compressed simultaneously, impel the table internal pressure also slowly to rise, played the buffering purpose, when " table internal pressure "+" spring pressure " is higher than by measuring pressure, after piston 8 went downwards to certain position, the well medium entered pressure tube 3 directly to tensimeter 1 by through hole 11, and measured data is accurate.
After pressure measurement finishes, with pressure cap 4 opposite spins, and then be separated from headgear 6, piston 8 is return under pressure, and through hole 11 is in the top of switch cover 6, and sealing is tight.Pressure tube 3 is under spring 4 effect and return, and pressure tube 3 and pressure transmission are overlapped 2 internal pressures and be released, and tensimeter 1 makes zero.Tensimeter 1 can be taken back keeping by the people, has stopped thoroughly that tensimeter is stolen to be frozen phenomenon.As seen this tensimeter pressure and fitting operation are very convenient quick, are fit to promote the use of.
Claims (2)
1, a kind of dual safety damped pressure obtaning device that relates to the pressure of oil field oil water wellhead pressure table, form by tensimeter (1), pressure transmission cover (2), pressure tube (3), piston (8), tensimeter (1) the pressure transmission cover (2) that links to each other, it is characterized in that: pressure tube (3) outer wall has the feasible groove that has O-ring seal (13) to fill between fin that faces mutually of some fins, pressure tube (3) inner chamber has piston (7) to move, and being wound with spring (4) back is had the pressure transmission cover (2) of fixed screw (14) fixing on pressure tube (3) outer wall fin top by the inwall bottom.
2, dual safety damped pressure obtaning device according to claim 1 is characterized in that: pressure tube (3) outer wall fin has 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228478 CN2485641Y (en) | 2001-07-08 | 2001-07-08 | Dual safety damped pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228478 CN2485641Y (en) | 2001-07-08 | 2001-07-08 | Dual safety damped pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2485641Y true CN2485641Y (en) | 2002-04-10 |
Family
ID=33643570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01228478 Expired - Fee Related CN2485641Y (en) | 2001-07-08 | 2001-07-08 | Dual safety damped pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2485641Y (en) |
-
2001
- 2001-07-08 CN CN 01228478 patent/CN2485641Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |