CN201021718Y - Well mouth sampling and pressure measurement freezing and theft preventive valve - Google Patents
Well mouth sampling and pressure measurement freezing and theft preventive valve Download PDFInfo
- Publication number
- CN201021718Y CN201021718Y CNU2006200941542U CN200620094154U CN201021718Y CN 201021718 Y CN201021718 Y CN 201021718Y CN U2006200941542 U CNU2006200941542 U CN U2006200941542U CN 200620094154 U CN200620094154 U CN 200620094154U CN 201021718 Y CN201021718 Y CN 201021718Y
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- Prior art keywords
- valve
- valve body
- well
- pressure measurement
- proof
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- Expired - Fee Related
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- Safety Valves (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to an oil well sampling and pressure testing valve, in particular to a well opening sampling and pressure testing frostbite prevention and anti-theft valve. The utility model is composed of a cylinder, as well as a valve seat, nut, meter seat, and protecting hood connected through the thread; the valve seat is embedded and welded on the pipeline of the well opening, the center of the valve body has a through-hole, the underside of the valve body has three liquid entering holes, the liquid entering holes are communicated with the dent groove on the inner wall of the valve body, a piston is arranged inside the valve seat, a protecting hood is arranged out of the meter seat, the device integrates the functions of sampling, pressure testing, frostbite prevention and anti-theft as a whole, so as to overcome the shortcomings that the traditional brake valve and needle valve are easily cracked and the hand-wheel pressure meter is easy to be lost. The piston valve body of the device is made of stainless steel, and is corrosion-resist and non-leaking, apart from being used in oil extraction input well; the utility model can also be installed on the pipeline of the filter for liquid intake and outtake, as well as can also provide data for the replacement of the filter element.
Description
Technical field:
The utility model relates to oil well sampling pressure valve, especially wellhead sampling pressure measurement freezing-proof theft-proof valve.
Background technique:
Oil-extracting and water-injecting well injection well wellhead sampling pressure measurement in the oil field is an important step of carrying out dynamic monitoring in the production process, gate valve or needle value and the pressure gauge at well head pipeline location mounting strap handwheel all adopted in existing technology wellhead sampling pressure measurement, palpus closed shutter when sample thief, take off pressure gauge, dock sampling with valve with sample collector again, because gate and pipeline are by being connected the side pipe transition, the side pipe of exposed welding is as easy as rolling off a log in the winter time by bursting by freezing, needle value uses repeatedly at high-pressure well in addition, need often change in addition the pressure gauge valve loses in the open air easily, make troubles not only for the management of oil/water well, can have a strong impact on the normal operation of oil/water well again.
The model utility content:
The utility model purpose is in order to overcome above-mentioned shortcoming, and the wellhead sampling pressure measurement freezing-proof theft-proof valve that provides, can be implemented in oil recovery well, water injection well, the pressure measurement of injection well wellhead sampling, also can on the well head that filter is installed, use, have sampling pressure measurement freezing-proof theft-proof function.
Technological scheme:
For reaching above-mentioned target, the utility model comprises by cylinder barrel and forms by valve seat, nut, gauge stand, the guard shield of screwed connection; Described valve seat welding-on is on the well head pipeline, the whole valve body axis direction has one to connect circular hole, on the valve body lower end sidewall, be evenly equipped with three inlet openings, the angle of duct center line is 120 degree, inlet opening communicates with the valve interior wall groove, and the valve body shaft core position is packed into and had the piston of two groups of seal rings between valve seat and cylinder barrel.
Described this valve and piston adopt the 1Crl8Ni9T stainless steel to make.
Described guard shield sidewall has an eyelet, and the bottom, hole is provided with screw thread, after being screwed into screw rod, can be fastened in the cylinder barrel sidewall notches of valve body.
The utility model compared with prior art has distinguishing feature:
The sampling pressure measurement is antitheft because the utility model structure has adopted, antifreeze function squeezes one.Cancel the connection side pipe in addition and overcome traditional gate valve, the easy bursting by freezing drawback of needle value long term exposure, thereby can prevent that the handwheel pressure gauge from losing easily, and when long-term the use shortcoming of easy seepage, described valve body and piston are the stainless steel making and have anti-corrosion function, and using for a long time can not seepage.
Description of drawings:
Fig. 1 is the utility model structural representation.Fig. 2 is the shroud structure schematic representation.
Among the figure by 1, valve seat, 2, cylinder barrel, 3, piston, 4, nut, 5, gauge stand, 6, guard shield, 7, seal ring, 8, the well head pipeline forms.
Embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
Among Fig. 1, valve seat 1 welding-on is in well head pipeline 8 top valves, the center circle through hole is convenient to pressure measurement in the seat, piston 3 in the valve relies on pipeline liquid pressure to return the envelope valve body, base center circle through hole, and respectively there is inlet opening both sides, be distributed on the body wall, inlet opening center line angle is 120 degree, and liquid-inlet when this hole is pressure measurement also can play antifreeze effect.Cylinder barrel 2 is fixed on above the valve seat 1 by screw thread, there is rubber seal 7 at the screw thread place, cylinder barrel 2 sidewall bottom positions have two inlet openings to communicate with the concave side wall groove, during sampling, when piston was retreated to the sidewall notches below by the supreme seal ring in liquid stream top, liquid just entered in sample collector or the pressure gauge, after the pressure measurement of waiting to take a sample finishes, hydraulic coupling is returned envelope automatically in the piston dependence pipeline, and piston is pushed on the water inlet groove of two cushion rubber tops.
In the cylinder sleeve of piston 3 between valve seat 1 and cylinder barrel 2, bottom sides has two groups of seal rings 7, this piston bottom surface is a flat shape, its center hole communicates with sidewall two ducts and is liquid inflow sample collector and manometric important channel, the seal ring of being located between piston and the cylinder barrel makes the liquid that enters cylinder barrel, can only enter in sample collector or the pressure gauge from the piston side wall duct.
Described nut 4 links together gauge stand 5 and cylinder barrel 2 by screw thread, gauge stand 5 is screwed in above the screw thread of cylinder barrel 2 after being inserted by internal thread button center hole, gauge stand 5 is pushed ahead piston 3 along with the nut propelling, when the two seals circle of piston bottom side falls back on cylinder barrel sidewall notches below, the expression pressure measurement is finished, pressure measurement finishes, and this nut is return again, and piston moves and relies on the thrust of manifold pressure to finish.
The front end of gauge stand 5 communicates with piston 3, in sidewall locations a leakproof seal circle 7 is arranged, and tail end has screw thread and is used to connect pressure gauge or sample collector.
Claims (3)
1. wellhead sampling pressure measurement freezing-proof theft-proof valve comprises by cylinder barrel (2) and forms by valve seat (1), nut (4), gauge stand (5), the guard shield (6) of screwed connection; It is characterized in that: described valve seat (1) welding-on is on well head pipeline (8), the whole valve body axis direction has one to connect circular hole, on the valve body lower end sidewall, be evenly equipped with three inlet openings, the angle of this duct center line is 120 degree, inlet opening communicates with the valve interior wall groove, the piston (3) that the valve body shaft core position is packed into and had two groups of seal rings between described valve seat (1) and the cylinder barrel (2).
2. wellhead sampling pressure measurement freezing-proof theft-proof valve according to claim 1 is characterized in that: described this valve and piston (3) adopt the 1Cr18Ni9T stainless steel to be made.
3. wellhead sampling pressure measurement freezing-proof theft-proof valve according to claim 1 is characterized in that: described guard shield (6) sidewall has an eyelet, and the bottom, hole is provided with screw thread, after being screwed into screw rod, can be fastened within valve body cylinder barrel (2) sidewall notches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200941542U CN201021718Y (en) | 2006-11-13 | 2006-11-13 | Well mouth sampling and pressure measurement freezing and theft preventive valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200941542U CN201021718Y (en) | 2006-11-13 | 2006-11-13 | Well mouth sampling and pressure measurement freezing and theft preventive valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021718Y true CN201021718Y (en) | 2008-02-13 |
Family
ID=39089127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200941542U Expired - Fee Related CN201021718Y (en) | 2006-11-13 | 2006-11-13 | Well mouth sampling and pressure measurement freezing and theft preventive valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021718Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291242A (en) * | 2013-06-18 | 2013-09-11 | 王冬生 | Antifreezing anti-theft fast connecting pressure taking device |
-
2006
- 2006-11-13 CN CNU2006200941542U patent/CN201021718Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291242A (en) * | 2013-06-18 | 2013-09-11 | 王冬生 | Antifreezing anti-theft fast connecting pressure taking device |
| CN103291242B (en) * | 2013-06-18 | 2015-06-03 | 王冬生 | Antifreezing anti-theft fast connecting pressure taking device |
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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: 20080213 Termination date: 20101113 |