CN203926809U - The stop valve of valve with changeable valve seat, flap - Google Patents
The stop valve of valve with changeable valve seat, flap Download PDFInfo
- Publication number
- CN203926809U CN203926809U CN201420305185.2U CN201420305185U CN203926809U CN 203926809 U CN203926809 U CN 203926809U CN 201420305185 U CN201420305185 U CN 201420305185U CN 203926809 U CN203926809 U CN 203926809U
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- flap
- clack
- pressure ring
- 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
Links
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 210000004907 gland Anatomy 0.000 claims abstract description 4
- 239000000945 filler Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 9
- 210000003746 feather Anatomy 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to the stop valve of a kind of valve with changeable valve seat, flap, comprises valve body, valve seat and flap assembly, and flap assembly upper end connects valve rod, and valve rod stretches out valve gap by self-energized seal device, and is connected with the manual operating device of valve body top; Wherein the structure of flap assembly is, at main valve clack endoporus sealing bottom surface, be connected with auxiliary-seat, lower end at valve rod is connected with secondary flap by attachment cap, secondary flap is landed on auxiliary-seat, at the excircle of valve rod and be positioned at attachment cap top and be provided with convex shoulder, endoporus circumference at main valve clack is combined with pressure ring, and pressure ring inner circumference coordinates with convex shoulder, and the valve rod gland that pressure ring upper surface is threaded with main valve clack compresses; Excircle at main valve clack is evenly distributed with radial hole and communicates with endoporus, and radial hole is between auxiliary-seat and pressure ring; Main valve clack is landed on valve seat.This stop valve adopts manual operating device to drive, and on flap, adopts Double-clack structure, has reduced valve opening force, operates light.
Description
Technical field
The utility model relates to the stop valve of a kind of valve with changeable valve seat, flap, for the opening and closing device of pipeline.
Background technique
In oil extraction in oil field Water Injection Engineering, in medium, contain sometimes sandstone foreign material, when reducing foreign material, in valve, accumulate, user requires the passage of invention to change the flow direction of high in and low out into, and such valve, when open and close valve, is opened valve pulling force very large, is difficult to operation.
Summary of the invention
The technical problems to be solved in the utility model is to provide the stop valve of a kind of valve with changeable valve seat, flap, and this stop valve adopts manual operating device to drive, and on flap, adopts Double-clack structure, has reduced valve opening force, operates light; Valve seat and flap on it is replaceable simultaneously, has increased the whole service life of valve.
For overcoming the above problems, concrete technological scheme of the present utility model is as follows: the stop valve of a kind of valve with changeable valve seat, flap, comprise valve body, valve seat and flap assembly, and flap assembly upper end connects valve rod, valve rod stretches out valve gap by self-energized seal device, and is connected with the manual operating device of valve body top; Wherein the structure of flap assembly is, at main valve clack endoporus sealing bottom surface, be connected with auxiliary-seat, lower end at valve rod is connected with secondary flap by attachment cap, secondary flap is landed on auxiliary-seat, at the excircle of valve rod and be positioned at attachment cap top and be provided with convex shoulder, endoporus circumference interference fit at main valve clack has pressure ring, and pressure ring inner circumference coordinates with convex shoulder, and the valve rod gland that pressure ring upper surface is threaded with main valve clack compresses; Excircle at main valve clack is evenly distributed with radial hole and communicates with endoporus, and radial hole is between auxiliary-seat and pressure ring; Main valve clack is landed on valve seat.
Described self-energized seal apparatus structure is, at the bottom of the valve gap inner circumference filler volution that is threaded, filler volution upper surface is provided with packing press ring, filler and Packing seat successively, and Packing seat is spacing in valve gap, and the inside and outside circumference of filler is fitted with valve rod and valve gap respectively.
The upper end of described valve rod is outside thread, is provided with the nut being connected with outside thread in manual operating device, and this nut is connected with the driving mechanism in manual operating device.
Described valve gap is provided with feather key, is provided with rectangular groove on valve rod, and feather key is horizontally through valve gap and is inserted in rectangular groove.
The fluid input at the two ends of described valve body is high, and fluid output is low, and is respectively the parallel oblique through hole of axis, and at valve end welding center, has the end flange of horizontal through hole, and the horizontal through hole of end flange is corresponding with the oblique lead to the hole site of valve body.
The stop valve of this valve with changeable valve seat, flap adopts Double-clack structure, more laborsaving when opening, operate light, reliable, for ease of maintenaince.
Self-energized seal apparatus structure is set on valve gap, and its sealing force is directly proportional to the pressure in valve, needn't force to compress, and during stem movement, frictional force is little, and lifting is laborsaving, and sealing is reliable.
Valve rod adopts external manual operating device to control, not only easy to operate, and highly versatile.The feather key sliding at valve gap setting and rectangular groove, to guarantee that valve rod only does axial motion; Valve body adopts two ends to process oblique through hole in the structure of welding ends flange, not only easy to process, and valve body structure is firm, long service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the stop valve of valve with changeable valve seat, flap.
Fig. 2 is the structural representation of flap assembly part.
Embodiment
As depicted in figs. 1 and 2, a stop valve for valve with changeable valve seat, flap, comprises valve body 1, valve seat 2 and flap assembly 3, and flap assembly 3 upper ends connect valve rod 10, valve rod 10 stretches out valve gap 8 by self-energized seal device, and is connected with the manual operating device 11 of valve body top; Wherein the structure of flap assembly 3 is, at main valve clack 31 endoporus sealing bottom surfaces, be connected with auxiliary-seat 32, lower end at valve rod 10 is connected with secondary flap 33 by attachment cap 34, secondary flap 33 is landed on auxiliary-seat 32, at the excircle of valve rod 10 and be positioned at attachment cap 34 tops and be provided with convex shoulder, endoporus circumference at main valve clack 31 is combined with pressure ring 35, and pressure ring 35 inner circumferences coordinate with convex shoulder, and the valve rod gland 36 that pressure ring 35 upper surfaces are threaded with main valve clack 31 compresses; Excircle at main valve clack 31 is evenly distributed with radial hole and communicates with endoporus, and radial hole is between auxiliary-seat 32 and pressure ring 35; Main valve clack 31 is landed on valve seat 2.
Described self-energized seal apparatus structure is, at the bottom of the valve gap 8 inner circumference filler volution 4 that is threaded, filler volution 4 upper surfaces are provided with packing press ring 5, filler 6 and Packing seat 7 successively, and Packing seat 7 is spacing in valve gap 8, and the inside and outside circumference of filler 6 is fitted with valve rod 10 and valve gap 8 respectively.
The upper end of described valve rod 10 is outside thread, is provided with the nut being connected with outside thread in manual operating device 11, and this nut is connected with the driving mechanism in manual operating device.
Described valve gap 8 is provided with feather key 9, is provided with rectangular groove on valve rod 10, and feather key 9 is horizontally through valve gap 8 and is inserted in rectangular groove.
The fluid input at the two ends of described valve body 1 is high, and fluid output is low, and is respectively the parallel oblique through hole of axis, and at valve body 1 welding center, end, has the end flange 12 of horizontal through hole, and the horizontal through hole of end flange 12 is corresponding with the oblique lead to the hole site of valve body 1.
The working procedure of the application's valve with changeable valve seat, the stop valve of flap is: 1) this valve is that high in and low out flows to, medium flows downward through valve seat orifice from valve seat 1 top, because media flow direction is identical with flap closing direction, medium is downward to flap active force, therefore the power of closing is very little, but valve opening force is very large; Once after valve complete shut-down, the pressure of medium compresses flap downwards, this power reaches maximum value;
2) while driving valve, first valve rod rises, and secondary flap rises thereupon, and secondary flap is opened.Medium, through main valve clack, the outlet of main valve clack side radial hole d0 flow valves, makes to export end pressure and improves, and main valve clack is reduced by medium down pressure, opens main valve laborsaving;
3) when valve rod continues to rise, when gap L=0, valve rod convex shoulder place, main valve clack starts to rise, and now outlet end pressure rises, and main valve clack just can be opened easily;
4) because auxiliary-seat aperture d much smaller than main valve seat aperture D, so valve opening force is very little, operates lightly, this structure can will be opened the valve opening force of main valve D, is converted to out the valve opening force of paying valve d, first open and pay a valve, after open main valve and open at twice.
Claims (5)
1. the stop valve of a valve with changeable valve seat, flap, comprise valve body (1), valve seat (2) and flap assembly (3), it is characterized in that: flap assembly (3) upper end connects valve rod (10), valve rod (10) stretches out valve gap (8) by self-energized seal device, and is connected with the manual operating device (11) of valve body top; Wherein the structure of flap assembly (3) is, at main valve clack (31) endoporus sealing bottom surface, be connected with auxiliary-seat (32), lower end at valve rod (10) is connected with secondary flap (33) by attachment cap (34), secondary flap (33) is landed on auxiliary-seat (32), at the excircle of valve rod (10) and be positioned at attachment cap (34) top and be provided with convex shoulder, endoporus circumference interference fit at main valve clack (31) has pressure ring (35), pressure ring (35) inner circumference coordinates with convex shoulder, and the valve rod gland (36) that pressure ring (35) upper surface is threaded with main valve clack (31) compresses; Excircle at main valve clack (31) is evenly distributed with radial hole and communicates with endoporus, and radial hole is positioned between auxiliary-seat (32) and pressure ring (35); Main valve clack (31) is landed on valve seat (2).
2. the stop valve of valve with changeable valve seat as claimed in claim 1, flap, it is characterized in that: described self-energized seal apparatus structure is, at the bottom inner circumference of valve gap (8) the filler volution (4) that is threaded, filler volution (4) upper surface is provided with packing press ring (5), filler (6) and Packing seat (7) successively, Packing seat (7) is spacing in valve gap (8), and the inside and outside circumference of filler (6) is fitted with valve rod (10) and valve gap (8) respectively.
3. the stop valve of valve with changeable valve seat as claimed in claim 1, flap, it is characterized in that: the upper end of described valve rod (10) is outside thread, in manual operating device (11), be provided with the nut being connected with outside thread, this nut is connected with the driving mechanism in manual operating device.
4. the stop valve of valve with changeable valve seat as claimed in claim 1, flap, is characterized in that: described valve gap (8) is provided with feather key (9), and on valve rod (10), be provided with rectangular groove, feather key (9) is horizontally through valve gap (8) and is inserted in rectangular groove.
5. the stop valve of valve with changeable valve seat as claimed in claim 1, flap, it is characterized in that: the fluid input at the two ends of described valve body (1) is high, fluid output is low, and be respectively the parallel oblique through hole of axis, and at welding center, valve body (1) end, thering is the end flange (12) of horizontal through hole, the horizontal through hole of end flange (12) is corresponding with the oblique lead to the hole site of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305185.2U CN203926809U (en) | 2014-06-10 | 2014-06-10 | The stop valve of valve with changeable valve seat, flap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305185.2U CN203926809U (en) | 2014-06-10 | 2014-06-10 | The stop valve of valve with changeable valve seat, flap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926809U true CN203926809U (en) | 2014-11-05 |
Family
ID=51822620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305185.2U Expired - Fee Related CN203926809U (en) | 2014-06-10 | 2014-06-10 | The stop valve of valve with changeable valve seat, flap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926809U (en) |
-
2014
- 2014-06-10 CN CN201420305185.2U patent/CN203926809U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |