CN202659990U - Adjustable swing check valve - Google Patents
Adjustable swing check valve Download PDFInfo
- Publication number
- CN202659990U CN202659990U CN 201220274385 CN201220274385U CN202659990U CN 202659990 U CN202659990 U CN 202659990U CN 201220274385 CN201220274385 CN 201220274385 CN 201220274385 U CN201220274385 U CN 201220274385U CN 202659990 U CN202659990 U CN 202659990U
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- valve
- flap
- valve body
- swing check
- adjustment type
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- Expired - Lifetime
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Abstract
The utility model relates to an adjustable swing check valve, which comprises a valve body, a valve seat, a valve flap and pin shafts. A bracket is arranged above the valve body. The adjustable swing check valve is characterized in that the valve flap is hinged with the pin shafts arranged on the two sides of a middle cavity of the valve body, the valve seat is arranged at the upper and lower edges of the middle cavity of the valve body and matched with the valve flap to realize opening and closing of the valve, an adjusting mechanism for controlling the opening degree of the valve flap is arranged on the bracket, and the adjusting mechanism is provided with a limiting piece moving vertically in the middle cavity of the valve body. By adopting the technical scheme, the utility model aims to provide the adjustable swing check valve which is adjustable in opening degree, good in sealing performance, quick in opening and closing, low in flow resistance and low in pressure drop, and impact on sealing faces of the valve flap and the valve seat when the valve is closed is low.
Description
Technical field
The utility model relates to a kind of safety check, particularly a kind of adjustment type Swing check valve.
Background technique
The Swing check valve that traditional petrochemical industry operating mode is normally formed by Assembly of the parts such as valve body, valve seat, flap, rocking bar, bearing pin and valve gaps with safety check, be installed in and automatically prevent the purposes that working medium flows backwards in the pipeline on the transmission pipeline of petrochemical equipment, its switch relies on working medium promotion flap to rotate to open along bearing pin through rocking bar, working medium begins normal circulation, flowing backwards appears in working medium in case pipeline breaks down, the refluence medium can promote flap and close voluntarily, can block medium fully and continue to flow backwards.This Swing check valve in use common problem is: because the switch of this valve needs finish along bearing pin through rocking bar, because of its Lift uncontrollable, cause and can't satisfy the operating mode that need are regulated flow, this kind operating mode must be finished at other valves such as pipeline installation modulating valve; Simultaneously because of its completely open and close normally, the motion arm of force is longer, its closing impact is larger under the pressure medium effect when closing, clashing between the flap of plane sealing structure and its sealing surface of valve seat very easily occurs, clash into frequently not only noise large but also sealing surface can be destroyed and cause serious leakage, powerful impact force also can make the surface of contact rapid wearing that rotatablely moves between rocking bar and the bearing pin simultaneously, and this is unfavorable for using the operating mode not needing standard-sized sheet.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of Lift to regulate, flap and sealing surface of seat clash into little and good seal performance, switch is rapid, the little pressure drop of flow resistance is low adjustment type Swing check valve when closing.
For achieving the above object, the utility model provides following technological scheme: comprise valve body, valve seat, flap and bearing pin, the valve body top is provided with support, it is characterized in that: described flap is hinged with the bearing pin that is installed in valve body lumen both sides, lower limb is provided with valve seat and cooperates with flap and realize valve open and close on the described valve body lumen, described support is provided with the controlling mechanism of control flap aperture, and described controlling mechanism is provided with the bounding means that moves up and down at the valve body lumen.
By adopting technique scheme, the bearing pin that flap is articulated in valve body lumen both sides can be regulated the aperture of lumen, the valve seat of lower limb setting can make flap realize opening and closure of valve on the valve body lumen, and controlling mechanism then can be controlled the concrete size of aperture.
The utility model further is set to: described controlling mechanism comprises valve rod and drive unit thereof, described drive unit control valve rod is done straight line motion up and down, described valve rod passes valve body and stretches into lumen and be butted on the flap, described flap is provided with the structure suitable with valve stem end, and the scale that the part of described valve rod outside valve body is provided with on pointer and the support forms indicator of opening.
By adopting technique scheme, drive unit control valve rod is done straight line motion up and down with the uninterrupted of control lumen, indicator of opening then makes the aperture size that clear and definite sign is arranged, easilier regulate as required, drive unit can be hydraulic pressure, air pressure, here preferred rocking bar, be convenient to control, save the energy.
The utility model further is set to: described bearing pin center and valve rod center line, lumen center line form two eccentric settings.
By adopting technique scheme, the eccentric setting of bearing pin center and lumen center line makes liquid preferential and flap closure when refluxing prevent refluence, and the eccentric setting of bearing pin center and valve rod center line makes valve rod can regulate the flap aperture.
The utility model further is set to: described flap two ends are provided with multi-level inserted Sealing, described inlaying at many levels for inlaying layer flexible graphite in the stainless steel sheets, the conical elastic structure sealing surface on the described valve seat cooperates the formation sealing configuration with the multi-level inserted sealing surface on the flap.
By adopting technique scheme, conical elastic structure sealing surface on the valve seat cooperates the formation sealing configuration with the multi-level inserted Sealing on the flap, make valve seat and flap when closure, without bump, good seal performance, inlay at many levels for inlaying flexible material in the hard material, wherein better for inlaying layer flexible graphite effect in the stainless steel sheets.
The utility model further is set to: valve body is left and right sides two-part setting, and described valve seat is located between left valve barrel and the right valve barrel and compresses by compress gasket.
By adopting technique scheme, make valve seat be easy to dismounting between valve seat sandwiched and left valve barrel and the right valve barrel, easily to repair, compress gasket has played better seal action.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is the closed schematic diagram of the utility model embodiment;
Fig. 2 is the enlarged view of A among Fig. 1;
Fig. 3 is the schematic diagram of opening of the utility model embodiment.
Embodiment
As depicted in figs. 1 and 2, the utility model discloses a kind of adjustment type Swing check valve, comprise valve body 1, valve seat 3, flap 2 and bearing pin 4, valve body 1 top is provided with support 5, flap 2 is hinged with the bearing pin 4 that is installed in valve body 1 lumen 11 both sides, lower limb is provided with valve seat 3 and cooperates with flap 2 and realize valve open and close on valve body 1 lumen 11, support 5 is provided with the controlling mechanism of control flap 2 apertures, the bearing pin 4 that flap 2 is articulated in valve body 1 lumen 11 both sides can be regulated the aperture of lumen 11, the valve seat 3 of lower limb setting can make flap 2 realize opening and closure of valve on valve body 1 lumen 11, controlling mechanism then can be controlled the concrete size of aperture, controlling mechanism comprises valve rod 6 and drive unit 61 thereof, drive unit 61 control valve rods 6 move up and down, valve rod 6 passes valve body 1 and stretches into lumen 11 and be butted on the flap 2, flap 2 is provided with and valve rod 6 terminal suitable structures, the scale 51 that the part of valve rod 6 outside valve body 1 is provided with on pointer 62 and the support forms indicator of openings, drive unit 61 control valve rods 6 are done straight line motion up and down with the uninterrupted of control lumen, indicator of opening then makes the aperture size that clear and definite sign is arranged, easilier regulate as required, drive unit 61 can be hydraulic pressure, air pressure, here preferred rocking bar, be convenient to control, save the energy, bearing pin 4 centers and valve rod 6 center lines, lumen 11 center lines form two eccentric settings, the eccentric setting of bearing pin 4 centers and lumen 11 center lines makes that liquid is preferential when refluxing to prevent refluence with flap 2 closures, the eccentric setting of bearing pin 4 centers and valve rod 6 center lines makes valve rod can regulate the flap aperture, flap 2 two ends are provided with multi-level inserted Sealing 21, multi-level inserted Sealing 21 is fixed in flap 2 by compressing tablet 22 and compressing tablet screw 23, inlay at many levels for inlaying layer flexible graphite in the stainless steel sheets, conical elastic structure sealing surface on the valve seat 3 cooperates with multi-level inserted Sealing 21 on the flap and forms sealing configuration, conical elastic structure sealing surface on the valve seat 3 cooperates the formation sealing configuration with the multi-level inserted Sealing on the flap 2, make valve seat and flap when closure, without bump, good seal performance, inlay at many levels for inlaying flexible material in the hard material, wherein better for inlaying layer flexible graphite effect in the stainless steel sheets, valve body 1 arranges for left and right sides two-part, left valve barrel 12 is connected with right valve barrel by screw 15 connections, valve seat 3 is located between left valve barrel 12 and the right valve barrel 13 and compresses by compress gasket 14, make valve seat be easy to dismounting between valve seat 2 sandwicheds and left valve barrel 12 and the right valve barrel 13, easily repair, compress gasket 14 has played better seal action.
As shown in figures 1 and 3, when normal operation medium drag flow, the flap 2 that is installed on the bearing pin 4 can be rotated counterclockwise unlatching along bearing pin 4 under working medium pressure, when the bottom plane of flap 2 is parallel with the fluid passage of right valve barrel 13 with left valve barrel 12, valve is in fully open position, this moment, the valve flow resistance was minimum, pressure drop is minimum, when working medium flows backwards, flap 2 is along automatically clockwise revolution of bearing pin 4, multi-level inserted Sealing 21 on the flap 2 of two eccentric structure designs can progressively contact with the conical elastic structure sealing surface of valve seat 3, form the multilayer linear sealing with high leak tightness secondary, because multi-level inserted Sealing 21 sealing surfaces and bearing pin 4 gyration center distance is short on the flap 2, flywheel moment is little, impact force is little when therefore closing, flap 2 and valve seat 3 are that progressively cut-in type is closed elastic force effect with valve seat 3 conical elastic structure sealing surfaces in addition, thereby wear and tear little without bump and movement parts in the time of can realizing closing.When working condition requirement is regulated pipeline flow, the controlling mechanism that is comprised of drive unit 61, valve rod 6, support 5 etc. can make valve rod 6 rise or descend with manual operation drive unit 61, valve rod 6 underparts play the positioning action of flap 2 enable possitions, the Lift of the scale 51 indication adjustable valve lobes 2 on the valve rod 6 on pointer 62 and the support 5, thereby the effect that realization is regulated by working condition requirement pipeline flow.
Claims (8)
1. adjustment type Swing check valve, comprise valve body, valve seat, flap and bearing pin, the valve body top is provided with support, it is characterized in that: described flap is hinged with the bearing pin that is installed in valve body lumen both sides, lower limb is provided with valve seat and cooperates with flap and realize valve open and close on the described valve body lumen, described support is provided with the controlling mechanism of control flap aperture, and described controlling mechanism is provided with the bounding means that moves up and down at the valve body lumen.
2. adjustment type Swing check valve according to claim 1, it is characterized in that: described controlling mechanism comprises valve rod and drive unit thereof, described drive unit control valve rod moves up and down, described valve rod passes valve body and stretches into lumen and be butted on the flap, described flap is provided with the structure suitable with valve stem end, and the scale that the part of described valve rod outside valve body is provided with on pointer and the support forms indicator of opening.
3. adjustment type Swing check valve according to claim 1 and 2 is characterized in that: described bearing pin center and valve rod center line, lumen center line form two eccentric settings.
4. adjustment type Swing check valve according to claim 1 and 2, it is characterized in that: described flap two ends are provided with multi-level inserted Sealing, described inlaying at many levels for inlaying layer flexible graphite in the stainless steel sheets, the conical elastic structure sealing surface on the described valve seat cooperates the formation sealing configuration with the multi-level inserted Sealing on the flap.
5. adjustment type Swing check valve according to claim 3, it is characterized in that: described flap two ends are provided with multi-level inserted Sealing, described inlaying at many levels for inlaying layer flexible graphite in the stainless steel sheets, the conical elastic structure sealing surface on the described valve seat cooperates the formation sealing configuration with the multi-level inserted Sealing on the flap.
6. adjustment type Swing check valve according to claim 1 and 2, it is characterized in that: described valve body is left and right sides two-part setting, and described valve seat is located between left valve barrel and the right valve barrel and compresses by compress gasket.
7. adjustment type Swing check valve according to claim 3, it is characterized in that: described valve body is left and right sides two-part setting, and described valve seat is located between left valve barrel and the right valve barrel and compresses by compress gasket.
8. adjustment type Swing check valve according to claim 4, it is characterized in that: described valve body is left and right sides two-part setting, and described valve seat is located between left valve barrel and the right valve barrel and compresses by compress gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274385 CN202659990U (en) | 2012-06-11 | 2012-06-11 | Adjustable swing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274385 CN202659990U (en) | 2012-06-11 | 2012-06-11 | Adjustable swing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659990U true CN202659990U (en) | 2013-01-09 |
Family
ID=47454899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220274385 Expired - Lifetime CN202659990U (en) | 2012-06-11 | 2012-06-11 | Adjustable swing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659990U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697200A (en) * | 2013-12-12 | 2014-04-02 | 保一集团有限公司 | Large-caliber inclined check valve |
| CN103836238A (en) * | 2014-02-21 | 2014-06-04 | 武汉圣禹排水***有限公司 | Lifting type closure check valve with rubber clack |
| CN103851240A (en) * | 2012-12-04 | 2014-06-11 | 张金茂 | Tap capable of controlling flow |
| CN106051235A (en) * | 2016-08-09 | 2016-10-26 | 杭州小米环境科技有限公司 | Fireproof check valve |
| CN106678399A (en) * | 2016-12-29 | 2017-05-17 | 凯喜姆阀门有限公司 | Multi-functional gate-check valve |
| CN107642637A (en) * | 2017-09-28 | 2018-01-30 | 上海阀门厂股份有限公司 | The flow and flow resistance characteristic experimental rig of a kind of swing check valve |
-
2012
- 2012-06-11 CN CN 201220274385 patent/CN202659990U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851240B (en) * | 2012-12-04 | 2016-06-22 | 张金茂 | A kind of faucet of controllable flow rate |
| CN103851240A (en) * | 2012-12-04 | 2014-06-11 | 张金茂 | Tap capable of controlling flow |
| CN103697200A (en) * | 2013-12-12 | 2014-04-02 | 保一集团有限公司 | Large-caliber inclined check valve |
| CN103697200B (en) * | 2013-12-12 | 2016-05-25 | 保一集团有限公司 | A kind of heavy caliber tilting check-valves |
| CN103836238B (en) * | 2014-02-21 | 2017-01-04 | 武汉圣禹排水***有限公司 | Lift dams rubber flap check valve |
| CN103836238A (en) * | 2014-02-21 | 2014-06-04 | 武汉圣禹排水***有限公司 | Lifting type closure check valve with rubber clack |
| CN106051235A (en) * | 2016-08-09 | 2016-10-26 | 杭州小米环境科技有限公司 | Fireproof check valve |
| CN110425313A (en) * | 2016-08-09 | 2019-11-08 | 杭州小米环境科技有限公司 | Fire-preventing check valve |
| CN106051235B (en) * | 2016-08-09 | 2020-12-22 | 杭州小米环境科技有限公司 | Fireproof check valve |
| CN110425313B (en) * | 2016-08-09 | 2021-09-10 | 杭州小米环境科技有限公司 | Fireproof check valve |
| CN106678399A (en) * | 2016-12-29 | 2017-05-17 | 凯喜姆阀门有限公司 | Multi-functional gate-check valve |
| CN106678399B (en) * | 2016-12-29 | 2019-03-05 | 凯喜姆阀门有限公司 | A kind of multi-functional lock stops valve |
| CN107642637A (en) * | 2017-09-28 | 2018-01-30 | 上海阀门厂股份有限公司 | The flow and flow resistance characteristic experimental rig of a kind of swing check valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |