CN2288314Y - High-temp high-pressure stop valve - Google Patents
High-temp high-pressure stop valve Download PDFInfo
- Publication number
- CN2288314Y CN2288314Y CN 96248524 CN96248524U CN2288314Y CN 2288314 Y CN2288314 Y CN 2288314Y CN 96248524 CN96248524 CN 96248524 CN 96248524 U CN96248524 U CN 96248524U CN 2288314 Y CN2288314 Y CN 2288314Y
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- CN
- China
- Prior art keywords
- valve
- flap
- valve seat
- valve rod
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a high-temperature and high-pressure stop valve, which comprises a valve seat, a valve body, a valve clack, a valve rod, a valve sleeve, a stuffing box, a press cover, and a bracket. The valve seat is welded on the valve body; a tapered fitting sealing surface is arranged between the valve clack and the valve seat; the valve sleeve and the valve body are in threaded connection; an inter-hole between the valve rod and the valve sleeve is the stuffing box; the valve clack is connected with the valve rod via a ball bearing; a pair of stop valves is formed on the upper parts of the valve rod and the valve sleeve via the tapered fit; two regulating bolts are arranged on the upper part of the press cover; the other ends of the bolts are positioned inside the bracket and are connected with nuts. The utility model has the advantages that the sealing effect is good, the tapered fitting sealing surface between the valve clack and the valve seat is not easily damaged, a sealing pad is easily changed and is not easily damaged, and the operation is convenient at the time of the regulation of the pressing force of the press cover.
Description
The utility model relates to the control valve unit of a kind of well or well, the High Temperature High Pressure novel cutoff valve that particularly a kind of oil thermal recovery is used.
Existing stop valve comprises valve seat, valve body, flap, valve rod, valve pocket, Stuffing box, gland, support, fuse by pivot pin between flap and the valve rod, when rotary valve rod, flap is along with together rotation, make the taper fit sealing surface of flap and the valve seat frictional force that rotates, when abrasion is serious, produce seepage from sealing surface.Flap also easily cracks on sealing surface under the operating conditions of High Temperature High Pressure, causes seepage.Valve pocket and gland are screwed connections, when rotating gland, sealing gasket are compressed the top seal effect that plays valve, are subjected to the rotation friction effect, and it is bad easily sealing gasket to be turned round; Cause the top seepage.When sealing gasket is changed, must stop production and repair, influence oil recovery amount.In the small space of gland in support, when adjusting the impacting force size, operate very inconvenient.Existing valve body body all is a flat, and endoporus is made by mechanical processing tools, and volume is big, and manufacture cost height, manufacturing process complexity, difficulty are big.
Above-mentioned the deficiencies in the prior art part when the purpose of this utility model is pin provides a kind of High Temperature High Pressure novel cutoff valve, and the tapering sealing surface of flap and valve seat is not influenced by rotation friction, and is not fragile; The top seal of valve rod and valve pocket has increased sealing configuration again except sealing gasket, strengthened sealing effect; Gland vertically compresses sealing gasket, can reduce sealing material and turn round and bad cause seepage, increase the service life, and easy to operate when adjusting the gland impacting force; This valve manufacturing process is simple.
The purpose of this utility model is achieved through the following technical solutions: a kind of High Temperature High Pressure novel cutoff valve, comprise valve seat, valve body, flap, valve rod, valve pocket, Stuffing box, gland, support, valve seat is welded on the valve body, the taper fit sealing surface is arranged between flap and the valve seat, valve pocket and valve body are screwed connection, the hole is a Stuffing box between between valve rod and the valve pocket, and support and copper sheathing are screwed connection.For ball bearing is connected, has 60 ° of-90 ° of taper angles to cooperate with 60 ° of-90 ° of tapered holes on the valve pocket on the valve rod and form one pair of stop valve between flap and the valve rod, gland top has two to regulate bolts, and the bolt the other end is positioned at support and links to each other with nut.Rotation valve rod makes flap move along the centerline direction of valve seat, flap is pressed on the sealing cone of valve seat, plays the lower seal effect, and during open and close valve, valve seat only is subjected to impacting force, is not subjected to rotation friction, avoids damaging the matching trim of valve seat and flap.Valve rod cooperates the stop valve of paying that forms with valve pocket by 60 ° of-90 ° of tapered holes, has strengthened the sealing on top, when sealing gasket damages, only needs airtight pair of stop valve, with regard to replaceable seal, does not influence field produces.Gland top has two to regulate bolts, regulates bolt and can make gland vertically compress sealing gasket, turns round and badly causes seepage thereby reduce sealing gasket, increases the service life, and when adjusting the gland impacting force, only needs to adjust and regulates bolt and get final product, and is easy to operate.
The utility model compared with prior art has following advantage: be connected with ball bearing between valve rod and the flap, valve seat is not subjected to the rotation friction effect, and the tapering sealing surface of flap and valve seat is not fragile; Valve rod and valve pocket form by taper fit and pay stop valve, have strengthened the top seal effect; Gland can vertically compress sealing gasket by the adjusting bolt of adjusting its top, reduced the sealing gasket damage and caused seepage, and the sealing gasket replacing easily, and is easy to operate when adjusting the gland impacting force.
Accompanying drawing 1 is a kind of structural representation of High Temperature High Pressure novel cutoff valve; Accompanying drawing 2 is valve rod and valve pocket annexation schematic representation.
Below in conjunction with accompanying drawing in detail embodiment of the present utility model is described in detail: this High Temperature High Pressure novel cutoff valve, comprise valve seat 1, flap 2, valve rod 3, valve body 4, valve pocket 5, Stuffing box 6, gland 7, support 8, valve seat 1 is to be welded on the valve body 4, one taper fit sealing is arranged and 15 between flap 2 and the valve seat 1, valve pocket 5 and valve body 4 screwed connections, the hole is a Stuffing box 6 between between valve rod 3 and the valve pocket 5, sealing gasket 11 is arranged in the Stuffing box 6, for ball bearing is connected, there is 60 ° of-90 ° of taper angles to cooperate on the valve rod 3 and forms one pair of stop valve 12 between flap 2 and the valve rod 3 with 60 ° of-90 ° of tapered holes on the valve pocket.Gland 7 tops have two to regulate bolt 13, and bolt 13 the other ends are positioned at support 8, and link to each other with nut 14.Rotation valve rod 3 makes flap 2 move along the centerline direction of valve seat 1, flap 2 is pressed on the sealing cone 15 of valve seat 1, plays the lower seal effect.During open and close valve, 1 of valve seat is subjected to impacting force, be not subjected to rotation friction, avoid damaging the matching trim 15 of valve seat 1 and flap 2, the taper angle of tapering sealing surface 15 is 25 °-30 ° between flap 2 and the valve seat 1, valve seat 1 tapered hole is 50 °-60 °, and roughness will reach more than 0.2, and the annular wire width of taper hole face is 2.5-3mm.When this taper angle is big more, the tapering surface of contact is just more little, its sealability is good more, and taper angle is too small, then can seal incessantly, the best angle of taper angle is 25 °-30 °, and the width of the ball grooves 16 in the flap 2 is greater than the diameter 1.5-3mm of ball, and the diameter of the ball runway groove 17 on the valve rod 3 is greater than ball diameter 0.3-0.5mm.The axial motion gap of flap 2 on valve rod 3 is 1-1.5mm, and the coaxality between adjustable valve seat 1, valve rod 3, copper nut 14 and the Stuffing box 6 is poor.The roughness of 60 ° of-90 ° of tapered holes will reach more than 0.2 on the valve pocket 5, pair stop valve 12 good sealing effects that valve pocket 5 and valve rod 3 taper fit are formed.Valve body 4 is a circular body, and the center line in hole and horizontal line angle at 45 on it can make this stop valve stressed evenly, the intensity height, and volume is little, and is in light weight, and the manufacturing process performance is good.
This High Temperature High Pressure novel cutoff valve is when opening, application impact handwheel 10 hits and bumps the collision block 18 that is contained in several times on the valve rod 3, flap 2 and valve seat 1 contact seal face 15 are left, rotation valve rod 3 then, flap 2 is moved up along the centerline direction of valve seat 1, at this moment could connect ducted saturated vapor, valve rod 3 is turned to top pay the position that stop valve 12 is closed, hit with impact pistol 10 again and bump collision block 18 several times, make top pay stop valve 12 sealings firmly.
When closing stop valve, application impact handwheel 10 hits and bumps the collision block on valve rod 3 18 several times, and the sealing contact surface of paying stop valve 12 is left.Rotation valve rod 3 then, flap 2 is moved along the center line downward direction of valve seat 1, flap 2 is contacted with valve seat 1 sealing surface 15, hit the collision block 18 that bumps on the valve rod 3 with impacting handwheel 10, hit and bump several times, make lower valve seat 1 firm, like this, could cut off ducted saturated vapor with sealing contact surface 15 sealings of flap 2.This High Temperature High Pressure novel cutoff valve two is welded on the pipeline, saturated vapor in the pipeline flows into above flap 2, when stop valve is closed, because the factor of saturated vapor active force, with less axial force, just can guarantee the sealing between flap 2 and the valve seat 1.When stop valve is opened; Along with paying closing of flap 12, because the factor of inlet outlet pressure differential balance can be opened the sealing between flap 2 and the valve seat 1 smoothly, so unlatching moment is little easy to operate.
When changing sealing gasket 11, firmly the pass is firm at first top to be paid stop valve 12, regulates spiral shell inspection 13 with two and unclamps, and takes out gland 7, gets final product from the bad sealing gasket 11 of Stuffing box 6 interior taking-ups.When easily damaged parts copper nut 14 damages, the tight screw 20 that gives on the support 8 need only be unclamped runing rest 8, support 8 is unloaded, check and change copper nut 14, then support 8 is gone up on copper sheathing 19 again, tighten and give tight screw 20, adjust again and regulate bolt 13, till adjustment top is non-leakage.
Claims (5)
1, a kind of High Temperature High Pressure novel cutoff valve, comprise valve seat, valve body, flap, valve rod, valve pocket, Stuffing box, gland, support, valve seat is to be welded on the valve body, one taper fit sealing surface is arranged between flap and the valve seat, valve pocket and valve body are screwed connection, valve rod and valve pocket ask between the hole be Stuffing box, sealing gasket is arranged in the Stuffing box, support and copper sheathing screwed connection, it is characterized in that being connected for ball bearing between flap and the valve rod, have one 60 ° of-90 ° of taper angles to cooperate with 60 ° of-90 ° of tapered holes on the valve pocket on the valve rod and form one pair of stop valve, gland top has two to regulate bolt, and the bolt the other end is positioned at support and links to each other with nut.
2, a kind of High Temperature High Pressure novel cutoff valve according to claim 1 is characterized in that valve body is a circular body, the center line in hole and horizontal line angle at 45 on it.
3, a kind of High Temperature High Pressure novel cutoff valve according to claim 1, the taper angle that it is characterized in that tapering sealing surface between flap and the valve seat is 25 °-30 °, the valve seat tapered hole is 50 °-60 °, and roughness will reach more than 0.2, and the annular wire width of taper hole face is 2.5-3mm.
4, a kind of High Temperature High Pressure novel cutoff valve according to claim 1, the width that it is characterized in that the ball grooves in the flap is greater than rolling different diameter 1.5-2mm, and the diameter of the ball runway groove on the valve rod is greater than ball diameter 0.3-0.5mm.
5, a kind of High Temperature High Pressure novel cutoff valve according to claim 1 is characterized in that the roughness of 60 ° of-90 ° of tapered holes on the valve pocket will reach more than 0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96248524 CN2288314Y (en) | 1996-11-22 | 1996-11-22 | High-temp high-pressure stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96248524 CN2288314Y (en) | 1996-11-22 | 1996-11-22 | High-temp high-pressure stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2288314Y true CN2288314Y (en) | 1998-08-19 |
Family
ID=33920361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96248524 Expired - Fee Related CN2288314Y (en) | 1996-11-22 | 1996-11-22 | High-temp high-pressure stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2288314Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062419A (en) * | 2012-08-27 | 2013-04-24 | 常州埃姆基冷冻设备有限公司 | Steel forged refrigeration valve |
-
1996
- 1996-11-22 CN CN 96248524 patent/CN2288314Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062419A (en) * | 2012-08-27 | 2013-04-24 | 常州埃姆基冷冻设备有限公司 | Steel forged refrigeration valve |
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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 |