CN204225842U - Valve discharging gas under certain pressure - Google Patents
Valve discharging gas under certain pressure Download PDFInfo
- Publication number
- CN204225842U CN204225842U CN201420596236.1U CN201420596236U CN204225842U CN 204225842 U CN204225842 U CN 204225842U CN 201420596236 U CN201420596236 U CN 201420596236U CN 204225842 U CN204225842 U CN 204225842U
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- spring
- seat
- pressure
- fixed
- main body
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- Expired - Fee Related
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- Safety Valves (AREA)
Abstract
Problem to be solved in the utility model is: provide a kind of valve discharging gas under certain pressure, comprises inlet duct, air-out apparatus, exhaust plant and level pressure adjusting device.Described inlet duct comprises valve body connector; Described air-out apparatus comprises nut seat, pipe regulating screw nut, return spring, spring base, pressure bearing, valve body gland; Described pipe regulating screw nut is arranged on nut seat, and described nut seat is fixed in main body; Described return spring is fixed on spring base, described spring base is fixed in main body, and one end of described return spring is connected with pipe regulating screw nut, and the other end is connected with one end of pressure bearing, the other end of pressure bearing is connected with valve body gland, and described valve body gland is fixed in main body.Described exhaust plant comprises excretion connector.The beneficial effects of the utility model are: the discharge value being controlled casing gas by the utility model, maintain the security and stability of process pressure and flow, guarantee outer defeated smooth enforcement.
Description
Technical field
The utility model relates to valve technology field, particularly relates to a kind of valve discharging gas under certain pressure.
Background technology
Petroleum casing pipe is the steel pipe for supporting oil, the gas well borehole wall, with ensure drilling process carry out with completion after the normal operation of whole oil well.Which floor sleeve pipe every a bite well, according to different drilling depths and geological condition, use.Sleeve pipe will adopt well cementing of cement after going into the well, it from oil pipe, drilling rod is different, cannot reuse, belong to disposable consumable material.So the consumption of sleeve pipe accounts for more than 70% of whole oil well pipe.Sleeve pipe can be divided into by service condition: conduit, surface pipe, protective casing and production string.
Vent valve is mainly used in the discharge value controlling casing gas, maintains the security and stability of process pressure and flow, guarantees outer defeated smooth enforcement.
Vent valve is generally divided into manually and automatic two kinds.Be exactly manually then carry out deflation operations by the mode of manual adjustment by observing pressure meter; Automatic blow off valve valve air relief is divided into several, be exactly briefly by wherein one or more in the factors such as the time in monitoring sleeve, pressure, flow, flow velocity, after reaching threshold values wherein, realized the deflation operations of valve by pure machinery or automatically controlled mode.
Utility model content
Problem to be solved in the utility model is: provide a kind of valve discharging gas under certain pressure.
The technical solution of the utility model is as follows: a kind of valve discharging gas under certain pressure, comprises inlet duct, air-out apparatus, exhaust plant and level pressure adjusting device, it is characterized in that:
Described inlet duct comprises valve body connector;
Described air-out apparatus comprises nut seat, pipe regulating screw nut, return spring, spring base, pressure bearing, valve body gland; Described pipe regulating screw nut is arranged on nut seat, and described nut seat is fixed in main body; Described return spring is fixed on spring base, described spring base is fixed in main body, and one end of described return spring is connected with pipe regulating screw nut, and the other end is connected with one end of pressure bearing, the other end of pressure bearing is connected with valve body gland, and described valve body gland is fixed in main body;
Described exhaust plant comprises excretion connector;
Described level pressure adjusting device comprises sealed ball seat, sealed steel ball, spring lower seat, pressure adjustment spring, the spring seat of honour, spring fixed seat, pressure adjustment push rod; Described sealed ball seat and main body are fixed, and sealed steel ball is flexibly connected with sealed ball seat; The two ends that pressure regulates spring are seat and the spring seat of honour under linking springs respectively, and spring lower seat is connected with sealed steel ball, and the spring seat of honour to be arranged on spring fixed seat and to be connected with pressure adjusting lever, and spring fixed seat is fixed in main body.
Further, described main body is provided with pressure tapping, for fixedly mounting pressure meter near inlet duct place.
Further, described main body is provided with location adjusting rod, for adjusting the position of installation near air-out apparatus place.
Further, described main body is provided with box cupling near level pressure adjusting device place.
The beneficial effects of the utility model are: the discharge value being controlled casing gas by the utility model, maintain the security and stability of process pressure and flow, guarantee outer defeated smooth enforcement.
Accompanying drawing explanation
Fig. 1 of the present utility modelly partly cuts open structural representation.
Wherein: 1, valve body connector, 2, pressure tapping,
3, sealed ball seat, 4, sealed steel ball,
5, spring lower seat, 6, box cupling,
7, pressure regulates spring, and 8, the spring seat of honour,
9, spring fixed seat, 10, pressure regulate push rod,
11, connector is drained, 12, nut seat,
13, pipe regulating screw nut, 14, return spring,
15, spring base, 16, pressure bearing,
17, valve body gland, 18, location adjusting rod.
Detailed description of the invention
Below in conjunction with accompanying drawing, brief description is made to detailed description of the invention of the present utility model.
As shown in Figure 1, a kind of valve discharging gas under certain pressure, main body, described main body is provided with inlet duct, air-out apparatus, exhaust plant and level pressure adjusting device, and described main body is provided with pressure tapping 2, for fixedly mounting pressure meter near inlet duct place; Described main body is provided with location adjusting rod 18 near air-out apparatus place, for adjusting the position of installation; Described main body is provided with box cupling 6 near level pressure adjusting device place.Described inlet duct comprises valve body connector 1.Described air-out apparatus comprises nut seat 12, pipe regulating screw nut 13, return spring 14, spring base 15, pressure bearing 16, valve body gland 17; Described pipe regulating screw nut 13 is arranged on nut seat 12, and described nut seat 12 is fixed in main body; Described return spring 14 is fixed on spring base 15, described spring base 15 is fixed in main body, one end of described return spring 14 is connected with pipe regulating screw nut 13, the other end is connected with one end of pressure bearing 16, the other end of pressure bearing 16 is connected with valve body gland 17, and described valve body gland 17 is fixed in main body, and air-out apparatus is by rotational pressure adjusting nut 13, and then the elastic force of adjustment return spring 14, realize the Stress control to petroleum casing pipe Exhaust Gas.Described exhaust plant comprises excretion connector 1.Described level pressure adjusting device comprises sealed ball seat 3, sealed steel ball 4, spring lower seat 5, pressure adjustment spring 7, the spring seat of honour 8, spring fixed seat 9, pressure adjustment push rod 10; Described sealed ball seat 3 is fixed with main body, and sealed steel ball 4 is flexibly connected with sealed ball seat 3; The two ends that pressure regulates spring 7 are seat 5 and the spring seat of honour 8 under linking springs respectively, and spring lower seat 5 is connected with sealed steel ball 4, and the spring seat of honour 8 to be arranged on spring fixed seat 9 and to be connected with pressure adjusting lever 10, and spring fixed seat 9 is fixed in main body.In described level pressure adjusting device, the weight of sealed steel ball 4 itself and be applied to its pressure with it and regulate the elastic force of spring 7 jointly to constitute the specified blowdown presssure of this patent, by the distance between adjustment spring lower seat 5 and the spring seat of honour 8, elastic force can also be adjusted further, realize the regulation and control to blowdown presssure.
Working method: valve discharging gas under certain pressure is arranged on wellhead casing pipe outlet manifold.Casing gas enters sealed ball seat 3 by manifold, and when air accumulation reaches vent valve setting pressure, air pressure backs down sealed steel ball 4, and casing gas outwards discharges, overlap drops; When pressure drops to below vent valve setting value, sealed steel ball 4 slowly closes under spring force, and sealed steel ball 4 and sealed ball seat 3 reseal.When casing gas reassembles and pressure is elevated to setting pressure again, sealed steel ball 4 repeats said process.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (4)
1. a valve discharging gas under certain pressure, comprises inlet duct, air-out apparatus, exhaust plant and level pressure adjusting device, it is characterized in that:
Described inlet duct comprises valve body connector (1);
Described air-out apparatus comprises nut seat (12), pipe regulating screw nut (13), return spring (14), spring base (15), pressure bearing (16), valve body gland (17); Described pipe regulating screw nut (13) is arranged on nut seat (12), and described nut seat (12) is fixed in main body; Described return spring (14) is fixed on spring base (15), described spring base (15) is fixed in main body, one end of described return spring (14) is connected with pipe regulating screw nut (13), the other end is connected with the one end of pressure bearing (16), the other end of pressure bearing (16) is connected with valve body gland (17), and described valve body gland (17) is fixed in main body;
Described exhaust plant comprises excretion connector (1);
Described level pressure adjusting device comprises sealed ball seat (3), sealed steel ball (4), spring lower seat (5), pressure adjustment spring (7), the spring seat of honour (8), spring fixed seat (9), pressure adjustment push rod (10); Described sealed ball seat (3) and main body are fixed, and sealed steel ball (4) is flexibly connected with sealed ball seat (3); Seat (5) and the spring seat of honour (8) under the two ends difference linking springs of pressure adjustment spring (7), spring lower seat (5) is connected with sealed steel ball (4), the spring seat of honour (8) is arranged on spring fixed seat (9) and goes up and be connected with pressure adjusting lever (10), and spring fixed seat (9) is fixed in main body.
2. valve discharging gas under certain pressure according to claim 1, is characterized in that: described main body is provided with pressure tapping (2) near inlet duct place.
3. valve discharging gas under certain pressure according to claim 1, is characterized in that: described main body is provided with location adjusting rod (18) near air-out apparatus place.
4. valve discharging gas under certain pressure according to claim 1, is characterized in that: described main body is provided with box cupling (6) near level pressure adjusting device place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596236.1U CN204225842U (en) | 2014-10-16 | 2014-10-16 | Valve discharging gas under certain pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420596236.1U CN204225842U (en) | 2014-10-16 | 2014-10-16 | Valve discharging gas under certain pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204225842U true CN204225842U (en) | 2015-03-25 |
Family
ID=52923951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420596236.1U Expired - Fee Related CN204225842U (en) | 2014-10-16 | 2014-10-16 | Valve discharging gas under certain pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204225842U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD804653S1 (en) | 2015-06-12 | 2017-12-05 | Emd Millipore Corporation | Pressure vessel |
| US10088398B2 (en) | 2015-02-11 | 2018-10-02 | Emd Millipore Corporation | Stirred cell and method of using same |
| CN115506751A (en) * | 2022-10-09 | 2022-12-23 | 中国石油天然气股份有限公司 | Series anti-freezing and anti-blocking constant-pressure air release device and sleeve air recovery method |
-
2014
- 2014-10-16 CN CN201420596236.1U patent/CN204225842U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10088398B2 (en) | 2015-02-11 | 2018-10-02 | Emd Millipore Corporation | Stirred cell and method of using same |
| US10656060B2 (en) | 2015-02-11 | 2020-05-19 | Emd Millipore Corporation | Stirred cell and method of using same |
| USD804653S1 (en) | 2015-06-12 | 2017-12-05 | Emd Millipore Corporation | Pressure vessel |
| CN115506751A (en) * | 2022-10-09 | 2022-12-23 | 中国石油天然气股份有限公司 | Series anti-freezing and anti-blocking constant-pressure air release device and sleeve air recovery method |
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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 |
Granted publication date: 20150325 Termination date: 20151016 |
|
| EXPY | Termination of patent right or utility model |