CN204226685U - A kind of modified model choke stop evacuation valve flap assembly - Google Patents
A kind of modified model choke stop evacuation valve flap assembly Download PDFInfo
- Publication number
- CN204226685U CN204226685U CN201420691183.1U CN201420691183U CN204226685U CN 204226685 U CN204226685 U CN 204226685U CN 201420691183 U CN201420691183 U CN 201420691183U CN 204226685 U CN204226685 U CN 204226685U
- Authority
- CN
- China
- Prior art keywords
- flap
- valve
- pressure ring
- modified model
- stop evacuation
- 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
- 239000002893 slag Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims abstract description 5
- 238000010030 laminating Methods 0.000 claims abstract description 3
- 210000004907 gland Anatomy 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 3
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a kind of modified model choke stop evacuation valve flap assembly, belong to valve field.This modified model choke stop evacuation valve flap assembly comprises flap, valve pocket, valve seat, pressure ring, soft seal circle, and flap contacts circumferential surface and has at least two and place the annular groove sealing O shape and enclose with tubular valve pocket, be provided with storage slag chute between two annular grooves; Under described flap, excircle is also provided with and scrapes slag cutting edge, and scrape slag cutting edge laminating tubular valve pocket, flap lower end surface has tapped blind hole; Described pressure ring screw and flap are fixed, and are provided with soft seal circle between pressure ring and flap.The utility model is adopted effectively to solve the problem of self function and protecting.
Description
Technical field
The utility model relates to valve field, specifically a kind of modified model choke stop evacuation valve flap assembly.
Background technique
Choke stop evacuation valve is a kind of double seal valve, plays in the conveyance conduit being mainly used in oil, rock gas, coal gas, blau gas etc., uses usually used as regulable control or cut-out.Such valve is a kind of novel throttling, cut-off, emptying product, has multistage throttle effect, the features such as restriction effect is obvious, sealing is reliable, convenient operating maintenance.
At existing choke stop evacuation valve in the throttling of valve, cut-out, equalizing orifice arranges to alleviate in operation torsion, combination seal etc. all very much progress.But in actual conditions application, still there are distinct issues: be mainly reflected in the valve good operation period not long, bad working environments occurs that quality problems are many.Particularly when High Pressure Difference, operating mode medium unholiness (such as, dust, body refuse etc.), general valve seal easily damages and occurs that the situation of interior leakage is more, and even serious jam appears in some valve.Tracing it to its cause, it is not exclusively reasonable to be mainly structural design: although valve design function all has configuration, and in fact its Functional Design structure can not extensively be suitable for, and its structure exists wretched insufficiency in self function and protecting.
Model utility content
The utility model aims to provide a kind of modified model choke stop evacuation valve flap assembly, to solve the problem of self function and protecting.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of modified model choke stop evacuation valve flap assembly, it is characterized in that: described flap assembly comprises flap, valve pocket, valve seat, pressure ring, soft seal circle, flap contacts circumferential surface and has at least two and place the annular groove sealing O shape and enclose with tubular valve pocket, be provided with storage slag chute between two annular grooves; Under described flap, excircle is also provided with and scrapes slag cutting edge, and scraping slag cutting edge is arc-shaped, laminating tubular valve pocket, and flap lower end surface has tapped blind hole; Described pressure ring is provided with the conical surface, and the conical surface of pressure ring is divided into two sections, is also provided with boss between two sections of conical surfaces, and the pressure ring conical surface and the flap conical surface form step conic, adaptive with the step conical surface on valve seat; Described pressure ring screw and flap are fixed, and are provided with soft seal circle between pressure ring and flap.
Further, described valve clack sealing surface is taper, built-up welding or be coated with wear-resisting, anticorrosive hard alloy layer or Tungsten carbite hardstanding.
Further, described flap flap gland is relative with valve rod fixing, is provided with thrust bearing between flap and valve rod, also has the equalizing orifice connecting valve body upper cavity and lower chamber in flap.
Further, described soft seal circle is explosion-proof triangle fluorine rubber ring, and sealing surface is taper.
The beneficial effects of the utility model are:
One, soft, the hard sealing surface of flap soft seal circle is conical seal (contact) face, and conical seal (contact) face is beneficial to purging, the foul easily on removal sealing surface, is unfavorable for that foreign material are piled up or deposition, and is very easy to purge totally, prevent sealing surface extruded by hard object or scratch.
two,adopt pressure ring to coordinate with valve seat thus form slow nip structural design.Valve opening moment, hard, soft sealing face that flap, soft seal circle and valve seat are formed successively are thrown off, and in this process, the boss of pressure ring forms slow nip with the segment length that coordinates of the interior step of valve seat.Slow nip structural design, prevent valve open/close moment soft seal from being torn by high pressure, prevent high pressure valve from opening and closing moment simultaneously, easily the problem in damage soft seal face, ensure that this structure is applicable to the reliability of high, medium and low voltage simultaneously.
Be provided with storage slag chute between two O-ring seals three, on flap cylindrical, sliding seal ring can be put by Protective valve, under setting up flap, scrape slag cutting edge simultaneously, remove medium foul and be attached to bottom, valve pocket chamber, when can prevent flap from closing, produce the situation of jam downwards.
Accompanying drawing explanation
Fig. 1 is the structural representation of the modified model choke stop evacuation valve flap assembly that the utility model provides.
Fig. 2 adopts modified model choke stop evacuation valve of the present utility model.
Mark in figure: 3 for valve seat, 7 for screw, 8 for pressure ring, 9 for soft seal circle, 10 for flap, 12 for tubular valve pocket, 13 for flap gland, 14 for valve rod, 30 for flap annular groove, 32 for the pressure ring conical surface, 33 for the flap conical surface, 37 for scraping slag cutting edge, 40 equalizing orifices.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of modified model choke stop evacuation valve flap assembly, it is characterized in that: described flap assembly comprises flap 10, valve pocket 12, valve seat 3, pressure ring 8, soft seal circle 9, flap 10 contacts circumferential surface and has at least two and place to seal between annular groove 30, two annular grooves 30 that O shape encloses and be provided with storage slag chute with tubular valve pocket 12; Described flap 10 times excircles are also provided with scrapes slag cutting edge 37, and scrape slag cutting edge 37 and to fit tubular valve pocket 12, flap 10 lower end surface has tapped blind hole; Described pressure ring 8 screw 7 and flap 10 are fixed, and are provided with soft seal circle 9 between pressure ring 8 and flap 10.Described flap 10 sealing surface is taper, built-up welding or be coated with wear-resisting, anticorrosive hard alloy layer or Tungsten carbite hardstanding.Described flap 10 is relative with valve rod 14 fixing with flap gland 13, is provided with thrust bearing between flap 10 and valve rod 14, also has the equalizing orifice 40 connecting valve body upper cavity and lower chamber in flap 10.Described pressure ring 8 is also provided with the conical surface, and the conical surface of pressure ring 8 is divided into two sections, is also provided with boss between two sections of conical surfaces, and the pressure ring conical surface 32 and the flap conical surface 33 form step conic, adaptive with the step conical surface on valve seat 3.Described soft seal circle 9 is explosion-proof triangle fluorine rubber ring, and sealing surface is taper.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a modified model choke stop evacuation valve flap assembly, it is characterized in that: described flap assembly comprises flap, valve pocket, valve seat, pressure ring, soft seal circle, flap contacts circumferential surface and has at least two and place the annular groove sealing O shape and enclose with tubular valve pocket, be provided with storage slag chute between two annular grooves; Under described flap, excircle is also provided with and scrapes slag cutting edge, and scraping slag cutting edge is arc-shaped, laminating tubular valve pocket, and flap lower end surface has tapped blind hole; Described pressure ring is provided with the conical surface, and the conical surface of pressure ring is divided into two sections, is also provided with boss between two sections of conical surfaces, and the pressure ring conical surface and the flap conical surface form step conic, adaptive with the step conical surface on valve seat; Described pressure ring screw and flap are fixed, and are provided with soft seal circle between pressure ring and flap.
2. modified model choke stop evacuation valve flap assembly according to claim 1, is characterized in that: described valve clack sealing surface is taper, built-up welding or be coated with wear-resisting, anticorrosive hard alloy layer or Tungsten carbite hardstanding.
3. modified model choke stop evacuation valve flap assembly according to claim 1, it is characterized in that: described flap flap gland is relative with valve rod fixing, be provided with thrust bearing between flap and valve rod, in flap, also have the equalizing orifice connecting valve body upper cavity and lower chamber.
4. modified model choke stop evacuation valve flap assembly according to claim 1, is characterized in that: described soft seal circle is explosion-proof triangle fluorine rubber ring, and sealing surface is taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420691183.1U CN204226685U (en) | 2014-11-18 | 2014-11-18 | A kind of modified model choke stop evacuation valve flap assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420691183.1U CN204226685U (en) | 2014-11-18 | 2014-11-18 | A kind of modified model choke stop evacuation valve flap assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226685U true CN204226685U (en) | 2015-03-25 |
Family
ID=52924784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420691183.1U Expired - Fee Related CN204226685U (en) | 2014-11-18 | 2014-11-18 | A kind of modified model choke stop evacuation valve flap assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226685U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405906A (en) * | 2014-11-18 | 2015-03-11 | 自贡自高阀门有限公司 | Improved valve clack component for throttling cut-off emptying valve |
| CN108591483A (en) * | 2017-03-13 | 2018-09-28 | 丹佛斯有限公司 | Low friction valve |
| WO2021007879A1 (en) * | 2019-07-16 | 2021-01-21 | 深圳华星恒泰泵阀有限公司 | Throttle valve of miniature electromagnetic water pump |
-
2014
- 2014-11-18 CN CN201420691183.1U patent/CN204226685U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405906A (en) * | 2014-11-18 | 2015-03-11 | 自贡自高阀门有限公司 | Improved valve clack component for throttling cut-off emptying valve |
| CN108591483A (en) * | 2017-03-13 | 2018-09-28 | 丹佛斯有限公司 | Low friction valve |
| WO2021007879A1 (en) * | 2019-07-16 | 2021-01-21 | 深圳华星恒泰泵阀有限公司 | Throttle valve of miniature electromagnetic water pump |
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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: 20151118 |
|
| EXPY | Termination of patent right or utility model |