CN201028060Y - Petroleum gas energy-saving special valve - Google Patents
Petroleum gas energy-saving special valve Download PDFInfo
- Publication number
- CN201028060Y CN201028060Y CNU2007201040444U CN200720104044U CN201028060Y CN 201028060 Y CN201028060 Y CN 201028060Y CN U2007201040444 U CNU2007201040444 U CN U2007201040444U CN 200720104044 U CN200720104044 U CN 200720104044U CN 201028060 Y CN201028060 Y CN 201028060Y
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- valve
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- seal
- cap
- valve rod
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Abstract
The utility model provides a valve, particularly an energy saving valve used for oil and natural gas. During the production of oil and natural gas, the utility model can solve the inner leakage and accomplish the sealed effect without the necessity to suspend the production. When the first sealing between the valve cover and the valve rod fails, the utility model provided with a movable canister with cone contact can modulate the valve into the sealed status without the necessity to suspend the production. Meanwhile, an inner sealing is arranged between the plug and the valve body, therefore, a double-layer sealing can be accomplished in the fire, and the safety efficacy is improved.
Description
Technical field
The utility model relates to a kind of valve, especially in the natural liquid gas production process of oil, can solve under the situation that does not stop to produce and leak in the conventional valves and the energy-conservation specific valve of petroleum gas of the problem that leaks outside.
Background technique
The conventional valves of using on the every profession and trade pipeline is to use the rotation hand wheel rotation valve rod, drives valve gap end flat and metal valve body inner sealing surface and closely contacts and seal.The very stiff and demanding plane sealing of this metal and metal, wearing and tearing are big, and sealing area is little, easily produces and reveals.
Though adopt the soft above-mentioned defective that the hard radially special formula gate valve of soft seal has been overcome conventional valves of seal ring and Metal Contact at the valve body position, but this valve also has some shortcomings, be mainly and on valve body, only be provided with the leakage-preventing security seal of a cover, after valve is used for a long time, as find to reveal, safety can not guarantee.
A kind of soft seal high temperature specific valve had appearred again in recent years, its structure as shown in Figure 1, mainly include valve body 1, valve gap 10, valve rod 18, rotation hand wheel 23, valve rod 18 drives valve body 1 by a seal arrangement and combines closely with valve gap 10, seal arrangement is by high temperature lower sealing ring 2 and high temperature upper sealing ring 6, hole frame 3, piston 4, piston cap 7 is formed, fixedly connected with piston cap 7 in valve rod 18 lower ends, piston cap 7 flexibly connects with piston 4, hole frame 3 is arranged in the valve body 1, frame 3 upper and lowers in hole are respectively equipped with graphite- seal ring 6 and 2, and graphite- seal ring 6 and 2 internal surface and piston 4 outer surfaces adopt interference fit to combine closely.This valve has installed the leakage-preventing security seal structure of a cover additional on valve body 1 and position that valve gap 10 is connected, stretching to dimpling at the corresponding site of valve body 1, valve gap 10 both outer walls has two step bodies, graphite grazing or elevated-temperature seal filler 9 place between two step bodies, and valve body 1 passes through bolted on connection with valve gap 10.Simultaneously, in order to reach better leak-tight seal effect, also be provided with a closed chamber at the position that valve gap 10 contacts with valve rod 18, graphite-seal ring or elevated-temperature seal filler 11 are placed in the closed chamber bottom, one first movable tube 13 is housed on graphite-seal ring or the elevated-temperature seal filler 11, the long set screw locking of first movable tube 13 usefulness is adjustable valve gap pressure cap 14 on the first movable tube 13.Also add a balance bracket 17 on the valve gap top, balance bracket 17 is connected with valve gap 10 by bolt.Balance bracket 17 tops are provided with rolling bearing, nut, and rotation hand wheel borrows rolling bearing, fastening nut to be positioned on the balance bracket.
The valve rod of conventional valves has only sealing with the valve gap joint, causes to leak or stop production with back seal failure meeting for a long time and keeps in repair.The second road anti-leak security seal that soft seal high temperature specific valve increases in the joint of valve rod and valve gap, though sealing has strengthened sealing effect, but unreasonable part is the first movable tube 13, has only a step (as shown in Figure 3), be difficult to movable tube 13 extruding are lived when first time seal failure, such second road security seal can not guarantee.If soft seal high temperature specific valve for a long time with after reveal, no matter be interior leakage or leak outside, all must be earlier valve closing, the nut of evenly tightening on the valve gap solves leakage problem then.If the pipeline that can not close when running into oil, rock gas ordinary production will in time solve leakage problem.Simultaneously,,, can rottenly become rusty with back locating stud 5 for a long time as Fig. 5, shown in Figure 6 because the valve rod 18 of this kind valve is connected with locating stud 5 by nut with piston cap 7, cause can not switch valve situation.Soft seal high temperature specific valve has only a seal structures in interior sealing, can not guarantee as the breaking out of fire Safety performance.
The model utility content
The purpose of this utility model is in order to overcome the above-mentioned defective of existing valve, to provide a kind of petroleum gas energy-conservation specific valve, and it is strong that this valve has sealing, the advantage of easy to maintenance, long service life.
To achieve these goals, the present invention has taked following technological scheme.Mainly include valve body 1, valve gap 10, valve rod 18, rotation hand wheel 23, rotation hand wheel 23 rotation valve rods 18, valve rod 18 drives valve body 1 by a seal arrangement and combines closely with valve gap 10, the sealing device is made up of high temperature upper sealing ring 6, high temperature lower sealing ring 2, hole frame 3, piston 4, piston cap 7, hole frame 3 is arranged in the valve body 1, the upper and lower of hole frame 3 is respectively equipped with high temperature upper sealing ring 6 and 2, two elevated-temperature seal ring inner surfaces of high temperature lower sealing ring and piston 4 outer surfaces and adopts interference fit to combine closely; Fixedly connected with piston cap 7 in valve rod 18 lower ends, piston cap 7 flexibly connects with piston 4; Be provided with the leakage-preventing sealing configuration of first cover at valve body 1 and valve gap 10 joints, be provided with the second cover leak tight seal in the contacting point of valve gap 10 and valve rod 18; Seal ring or elevated-temperature seal filler 11 are placed in the bottom of the second cover leak tight seal, one movable tube 26 is housed on graphite-seal ring or the elevated- temperature seal filler 11,12 lockings of movable tube 26 usefulness hexagon socket head cap screws, an adjustable valve gap pressure cap 14 is put in the top of movable tube 26, adjustable valve gap pressure cap 14 is fixedlyed connected with valve gap 10, and valve rod 18 passes the centre of seal ring or stuffing box packing 11, movable tube 26, adjustable valve gap pressure cap 14.Described movable tube 26 faces that are used for contacting with hexagon socket head cap screw 12 are taper, and hexagon socket head cap screw 12 is by compressing conical surface locking activity tube 26.
The Placement of described valve rod 18 and piston cap 7 is, is provided with groove on valve rod 18, and piston cap 7 is provided with through hole, places in this groove by through hole piston cap 7.
In the joint of piston 4 with lower sealing ring 2, the interior edge face of the interior edge face of valve body 1 and piston 4 is in same vertical plane, owing between piston 4 and valve body 1, increased a sealing again, be processed into sealing plane and valve body 25 places processing sealing plane in piston 4 lower ends, when breaking out of fire, fasten valve, just can reach sealing effect by valve rod.
The conventional valves valve rod has only sealing with the valve gap joint, can cause leakage during for a long time with the back seal failure, only stops to produce and just can keep in repair.The second road anti-leak security seal that soft seal high temperature specific valve increases, unreasonable part are that movable tube has only a step (as shown in Figure 3), are difficult to movable tube extruding is lived when the first road seal failure, and the second time, security seal can not guarantee like this.The utility model has adopted the movable tube of conical contact, (as shown in Figure 4), need not stop to produce when the first road seal failure, after of the movable tube locking of two hexagon socket head cap screws with conical contact, valve gap pressure cap 14 is unclamped, tighten up the valve gap pressure cap after encrypting the packing material again, so just can safety transfer to sealing state to valve, this technology also can be installed in gate valve, stop valve is on inlet valve and other valve, directly substitute back seal and use, reach prolongation valve working life and Safety performance.If existing soft seal high temperature specific valve leaks at valve body and valve gap joint with the back for a long time, all must evenly tighten the nut on the valve gap then, otherwise can damage lower sealing ring by pressure earlier valve closing, cause leakage, because lower sealing ring adopts the graphite sealing material insufficient strength.Adopt now the lower sealing ring of making by carbon fibre material 2,,,, directly tighten the state that nut on the valve gap just can transfer to sealing all without throttle down regardless of being interior leakage or leaking outside if leak.Simultaneously, owing to adopt locating stud to connect between existing soft seal high temperature specific valve valve rod and the piston cap, for a long time with the rotten rust of back locating stud meeting, causing can not switch valve, and the utility model direct machined grooves on valve rod, piston cap directly is connected with valve rod, the phenomenon that valve rod and piston cap break away from so just can not occur.
The utlity model has following advantage: 1) adopted the movable tube of conical contact owing to the utility model, so when leaking appears in the first road seal failure of valve gap and valve rod, just can transfer to sealing state without throttle down with stopping to produce, handling safety is simple.2) owing to adopted the lower sealing ring of being made by the carbon fiber sealing material, leakage still leaks outside in no matter taking place, and all just can transfer to sealing state without throttle down with stopping to produce, and has improved existing valve and has wanted earlier the defective that could keep in repair behind the valve closing; 3) because valve rod adopts groove to be connected with piston, overcome conventional valves and adopt locating stud to connect the phenomenon that rotten rust takes place; 4) when piston contacts with lower sealing ring 2; owing between piston and valve body, increased a sealing again; be processed into sealing plane and valve body 25 places processing sealing plane in piston 4 lower ends; when breaking out of fire, fasten valve by valve rod; just can reach sealing effect; leakage problem in double shielding is anti-strengthens valve zero leakage security energy.
Description of drawings
The existing valve of Fig. 1 the half sectional view of agent structure
The half sectional view of Fig. 2 the utility model valve body and valve cover structure
The sectional view of the movable tube of the existing valve of Fig. 3
The sectional view of Fig. 4 movable tube of the present utility model
The valve rod of the existing valve of Fig. 5 and the annexation figure of piston cap
The sectional view of the existing valve piston lid of Fig. 6
The annexation of Fig. 7 the utility model valve rod and piston cap
The sectional view of Fig. 8 piston cap of the present utility model
A partial enlarged drawing among Fig. 9 Fig. 2
B partial enlarged drawing among Figure 10 Fig. 2
Among the figure: 1, valve body, 2, the high temperature lower sealing ring, 3, the hole frame, 4, piston, 5, locating stud, 6, the high temperature upper sealing ring, 7, piston cap, 8, bolt, 9, elevated-temperature seal filler or graphite-seal ring, 10, valve gap, 11, graphite-seal ring or elevated-temperature seal filler, 12, hexagon socket head cap screw, 13, the first movable tube, 14, adjustable valve gap pressure cap, 15, bolt, 16, bolt, 17, balanced type support, 18, valve rod, 19, setscrew nut, 20, rolling bearing, 21, copper nut, 22, bearing cap, 23, rotation hand wheel, 24, label, 26, movable tube.
Embodiment
Describe present embodiment in detail below in conjunction with Fig. 2～Fig. 8.
As Fig. 2, Fig. 4, Fig. 7, shown in Figure 8, present embodiment mainly includes valve body 1, valve gap 10, valve rod 18, rotation hand wheel 23, and rotation hand wheel 23 rotation valve rods 18 are provided with the leakage-preventing sealing configuration of first cover at valve body 1 and valve gap 10 joints.In valve body 1, adorn a high temperature lower sealing ring 2 in the flange, lower sealing ring 2 is made by carbon fibre material, put a hole frame 3 on the lower sealing ring 2, adorn a high temperature upper sealing ring 6 on the hole frame 3, the internal surface of two elevated-temperature seal rings adopts interference fit to contact with the intimate of piston 4 up and down.In the joint of piston 4 with lower sealing ring 2, the interior edge face of the interior edge face of valve body 1 and piston 4 is in same vertical plane, owing between piston 4 and valve body 1, increased a sealing again, be processed into the 25 places processing sealing plane of sealing plane and valve body 1 in piston 4 lower ends, when breaking out of fire, fasten valve, just can reach sealing effect by valve rod.
The position that contacts with valve rod 18 at valve gap 10 is provided with a closed chamber, as Fig. 2, shown in Figure 4.Be specially: establish a graphite-seal ring or elevated-temperature seal filler 11 in the bottom of closed chamber, the movable tube of a conical contact is housed on graphite-seal ring or the elevated-temperature seal filler 11, two hexagon socket head cap screws 12 compress the conical surface of movable tube, with 26 lockings of activity tube.Put an adjustable valve gap pressure cap 14 above movable tube 26, valve gap pressure cap 14 usefulness bolts 16 are connected with valve gap 10, and valve rod 18 passes graphite-seal ring or elevated-temperature seal filler 11, activity tins 26, adjustable valve gap pressure cap 14 is middle.
The sealing means that adopts in the present embodiment also is applicable to gate valve, stop valve, inlet valve and other valve.
Claims (4)
1. the energy-conservation specific valve of petroleum gas, mainly include valve body (1), valve gap (10), valve rod (18), rotation hand wheel (23), rotation hand wheel (23) rotation valve rod (18), valve rod (18) drives valve body (1) by a seal arrangement and combines closely with valve gap (10), the sealing device is by high temperature upper sealing ring (6), high temperature lower sealing ring (2), hole frame (3), piston (4), piston cap (7) is formed, hole frame (3) is arranged in the valve body (1), the upper and lower of hole frame (3) is respectively equipped with high temperature upper sealing ring (6) and high temperature lower sealing ring (2), and two elevated-temperature seal ring inner surfaces and piston (4) outer surface adopt interference fit to combine closely; Fixedly connected with piston cap (7) in valve rod (18) lower end, piston cap (7) flexibly connects with piston (4); Be provided with the second cover leak tight seal in the contacting point of valve gap (10) and valve rod (18); Graphite-seal ring or elevated-temperature seal filler (11) are placed in the second cover leak tight seal bottom, one movable tube (26) is housed on graphite-seal ring or the elevated-temperature seal filler (11), movable tube (26) locks with hexagon socket head cap screw (12), an adjustable valve gap pressure cap (14) is put in the top of movable tube (26), adjustable valve gap pressure cap (14) is fixedlyed connected with valve gap (10), it is characterized in that: the face that is used for contacting with hexagon socket head cap screw (12) on the described movable tube (26) is taper.
2. the energy-conservation specific valve of petroleum gas according to claim 1, it is characterized in that: the Placement of described valve rod (18) and piston cap (7) is, be processed with groove on valve rod (18), piston cap (7) is provided with through hole, places in this groove by through hole piston cap (7).
3. the energy-conservation specific valve of petroleum gas according to claim 1, it is characterized in that: in the contacting point of piston (4) with lower sealing ring (2), the interior edge face of the interior edge face of valve body (1) and piston (4) all is processed with sealing plane in the lower end surface of piston (4) and the contacting point (25) of valve body (1) and piston (4) lower end surface in same vertical plane.
4. the energy-conservation specific valve of petroleum gas according to claim 1 is characterized in that: be provided with the lower sealing ring of being made by carbon fibre material (2) in the below of hole frame (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201040444U CN201028060Y (en) | 2007-03-30 | 2007-03-30 | Petroleum gas energy-saving special valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201040444U CN201028060Y (en) | 2007-03-30 | 2007-03-30 | Petroleum gas energy-saving special valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201028060Y true CN201028060Y (en) | 2008-02-27 |
Family
ID=39132272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201040444U Expired - Fee Related CN201028060Y (en) | 2007-03-30 | 2007-03-30 | Petroleum gas energy-saving special valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201028060Y (en) |
-
2007
- 2007-03-30 CN CNU2007201040444U patent/CN201028060Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20110330 |