CN2622501Y - Rigid seal valve with spring double-gate board - Google Patents
Rigid seal valve with spring double-gate board Download PDFInfo
- Publication number
- CN2622501Y CN2622501Y CN 03231898 CN03231898U CN2622501Y CN 2622501 Y CN2622501 Y CN 2622501Y CN 03231898 CN03231898 CN 03231898 CN 03231898 U CN03231898 U CN 03231898U CN 2622501 Y CN2622501 Y CN 2622501Y
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- China
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- valve
- flashboards
- wedge
- flashboard
- rigid seal
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- Expired - Fee Related
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Abstract
The utility model relates to a rigid seal valve with spring double-gate boards comprising a valve body with inlet and outlet, and two flashboards and valve rods slide matched with the inlet and outlet. A rigid wedge shape blocking mechanism is connected with the valve rods between the two valve boards. The utility model achieves rigid seal when the valve is closed and blocks the pipelines thoroughly so as to prevent the flashboards from attrition, leakage, and invalidation caused by the impact of the pressure fluctuation of the pipelines, thereby improving the service life. The utility model is suitable for the dry ash drain-off system pipelines of a power plant.
Description
Technical field
The utility model relates to a kind of pipeline valve, particularly a kind of power station dust removing system elasticity double-flashboard rigid seal valve.
Background technique
Original two kinds of the dust removing system of generation current factory, a kind of is water ash releasing system, the shortcoming of this dust removing system maximum is to cause the secondary pollution at water source.For this reason, the power station all progressively is being transformed into it the dry ash discharging.But bring a problem thus, the flashboard serious wear of promptly ducted Flexible disc valves, life of valve is very short, what have just leaks, lost efficacy less than a month valve, this brings very big trouble to generator operation, increases the maintenance load of equipment, and operating cost increases.Problem is, utilizes the tension force of spring between two Flexible discs of Flexible disc valves, seals the port of pipeline up and down, goes up the circulation of lower channel sand-lime to reach blocking-up.But when ducted instantaneous pressure greater than spring tension the time, flashboard is squeezed leaves a crack, and thin sand-lime lets out from the slit rapidly, and pipeline pressure descended rapidly and made flashboard momentary reset again this moment.Thus, flashboard is certain period, and moment is done axial motion back and forth, and sand-lime also with regard at this moment constantly impacting, wear and tear flashboard, causes the flashboard rapid wearing.
The model utility content
The purpose of this utility model is to provide a kind of elasticity double-flashboard rigid seal valve, reaches rigid seal when valve closing, and thoroughly blocking pipe prevents that flashboard is impacted and frayed by the pipeline pressure surge, and leakage, inefficacy improve working life.
For achieving the above object, the utility model adopts following technical proposals: a kind of elasticity double-flashboard rigid seal valve, comprise the valve body that has import and export, with two flashboards importing and exporting the coupling of sliding and valve rod, it is characterized in that having between two flashboards a rigidity wedge shape locking mechanism to be connected with the casket body of valve rod.
The structure of above-mentioned rigidity wedge shape locking mechanism is: respectively there are outside short tube and two short tube slip couplings that flashboard is inside in the both sides of the inner fixedly connected casket body of valve rod, casket body, respectively there is a fore-set two flashboard inboards, a wedge-shaped blocks is arranged between the inner of two fore-sets, the outer end of two fore-sets has flange to support an end of two preloading springs respectively, and the other end of two preloading springs is supported on the both sides of casket body; Between the upper end of wedge-shaped blocks and the casket body inner top surface back lash spring is set, the lower end of wedge-shaped blocks is stretched out casket body bottom surface and is supported on a pressure releasing mechanism.
The structure of above-mentioned pressure releasing mechanism is: the valve body of the below of aligning wedge-shaped blocks is at interior the end, a little cylinder (or solenoid valve) is arranged, piston in the little cylinder (or solenoid valve) protrudes upward little cylinder by piston rod and supports a pressing spring, the lower end of the last end bearing wedge-shaped blocks of pressing spring; The little cylinder air inlet/outlet of having gone to the bottom is communicated with high pressure pipe line and exhaust duct, and suction valve and bleed valve are arranged respectively on high pressure pipe line and the exhaust duct.
Above-mentioned two flashboards and valve body are in contact with one another on the rubbing surface setting-in wearing plate respectively.
Working principle of the present utility model is: when wanting throttle down, valve rod moves down under the driving of power-driven mechanism, pressing spring is run in the wedge-shaped blocks lower end, under the pressing spring effect, move up and insert between two fore-sets between two flashboards, block until last dirty pipeline, this moment, no matter much ducted pressure also can't be opened flashboard, because two flashboards have been in self-locking state this moment.When needs were opened flashboard, the bleed valve of pressure releasing mechanism was opened release, and then wedge-shaped blocks unclamps two flashboard releases to moving down under the back lash spring effect, and under the driving of power mechanism, valve rod moves up then, and then valve flashboard is opened.
The utility model compared with prior art, have following conspicuous characteristics and advantage: be provided with a rigidity wedge shape locking mechanism between two flashboards of the present utility model, so when valve closing, reach rigid seal, thorough blocking pipe, prevent that flashboard is impacted and frayed by the pipeline pressure surge, leak, lost efficacy, improve working life.Be applicable to power station dry ash releasing system pipeline.
Description of drawings
Fig. 1 is an embodiment's of the utility model a structural representation.
Embodiment
A preferred embodiment of the present utility model is: referring to Fig. 1, this elasticity double-flashboard rigid seal valve, comprise have import and export 27,28 valve body 1, with import and export 27,28 two flashboards 9,24 and the valve rods 4 that slide coupling, it is characterized in that having between two flashboards 9,24 a rigidity wedge shape locking mechanism 2 to be connected with the casket body 3 of valve rod 4.The structure of above-mentioned rigidity wedge shape locking mechanism 2 is: the both sides of valve rod 4 inner fixedly connected casket bodies 3, casket body 3 respectively have 9,24 inside short tubes 7,21 slips of 6,20 and two flashboards of outside short tube to mate, respectively there is a fore- set 10,29 two flashboard 9,24 inboards, a wedge-shaped blocks 26 is arranged between the inner of two fore- sets 10,29, the outer end of two fore- sets 10,29 has flange to support an end of two preloading springs 11,22 respectively, and the other end of two preloading springs 11,22 is supported on the both sides of casket body 3; Between the upper end of wedge-shaped blocks 26 and casket body 3 inner top surfaces back lash spring 5 is set, the lower end of wedge-shaped blocks 26 is stretched out casket body 3 bottom surfaces and is supported on a pressure releasing mechanism 14.The structure of above-mentioned pressure releasing mechanism 14 is: the valve body of the below of aligning wedge-shaped blocks 26 is at 1 the interior end, a stingy cylinder 15 is arranged, piston 16 in the stingy cylinder 15 protrudes upward stingy cylinder 15 by piston rod 19 and supports a pressing spring 13, the lower end of the last end bearing wedge-shaped blocks 26 of pressing spring 13; Stingy cylinder 15 air inlet/outlet of having gone to the bottom is communicated with high pressure pipe line and exhaust duct, and suction valve (17) and bleed valve (18) are arranged respectively on high pressure pipe line and the exhaust duct.Above-mentioned two flashboards 9,24 and valve body 1 are in contact with one another difference setting-in wearing plate 12,8,23,25 on the rubbing surface.
Claims (4)
1. elasticity double-flashboard rigid seal valve, comprise the valve body (1) that has import and export (27,28), with import and export (27,28) slide two flashboards (9,24) and valve rod (4) of coupling, it is characterized in that having between two flashboards (9,24) a rigidity wedge shape locking mechanism (2) to be connected with the casket body (3) of valve rod (4).
2. elasticity double-flashboard rigid seal valve according to claim 1, the structure that it is characterized in that rigidity wedge shape locking mechanism (2) is: the inner fixedly connected casket body (3) of valve rod (4), respectively there is outside short tube (6 both sides of casket body (3), 20) with two flashboards (9,24) inside short tube (7,21) slip coupling, two flashboards (9,24) respectively there is a fore-set (10 inboard, 29), two fore-sets (10, a wedge-shaped blocks (26) is arranged between the inner 29), two fore-sets (10,29) outer end has flange to support two preloading springs (11 respectively, 22) a end, and two preloading springs (11,22) the other end is supported on the both sides of casket body (3); Between the upper end of wedge-shaped blocks (26) and casket body (3) inner top surface back lash spring (5) is set, the lower end of wedge-shaped blocks (26) is stretched out casket body (3) bottom surface and is supported on a pressure releasing mechanism (14).
3. elasticity double-flashboard rigid seal valve according to claim 2, the structure that it is characterized in that pressure releasing mechanism (14) is: the valve body (1) of the below of aligning wedge-shaped blocks (26) is at interior the end, a little cylinder (15) is arranged, piston (16) in the little cylinder (15) protrudes upward little cylinder (15) by piston rod (19) and supports a pressing spring (13), the lower end of the last end bearing wedge-shaped blocks (26) of pressing spring (13); Little cylinder (15) air inlet/outlet of having gone to the bottom is communicated with high pressure pipe line and exhaust duct, and suction valve (17) and bleed valve (18) are arranged respectively on high pressure pipe line and the exhaust duct.
4. elasticity double-flashboard rigid seal valve according to claim 2 is characterized in that, two flashboards (9,24) are in contact with one another difference setting-in wearing plate (12,8,23,25) on the rubbing surface with valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231898 CN2622501Y (en) | 2003-06-05 | 2003-06-05 | Rigid seal valve with spring double-gate board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03231898 CN2622501Y (en) | 2003-06-05 | 2003-06-05 | Rigid seal valve with spring double-gate board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622501Y true CN2622501Y (en) | 2004-06-30 |
Family
ID=34248418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03231898 Expired - Fee Related CN2622501Y (en) | 2003-06-05 | 2003-06-05 | Rigid seal valve with spring double-gate board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622501Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101341359B (en) * | 2005-12-21 | 2012-07-18 | 富士金株式会社 | Fluid impact resistant valve |
| CN105952919A (en) * | 2016-06-01 | 2016-09-21 | 成都格瑞思文化传播有限公司 | Novel leakproof valve |
| CN107023695A (en) * | 2017-05-27 | 2017-08-08 | 江苏龙迈环保设备有限公司 | A kind of operated pneumatic valve of two-way double structure |
| CN108240482A (en) * | 2017-12-14 | 2018-07-03 | 浙江理工大学 | The flute profile double-flashboard gate valve that magnetism opens and closes |
| CN109185488A (en) * | 2018-11-13 | 2019-01-11 | 江苏圣泰阀门有限公司 | A kind of high-pressure seal gate valve |
| CN112112981A (en) * | 2020-10-22 | 2020-12-22 | 重庆磐恒阀门有限公司 | High leakproofness gas solenoid valve |
| CN117985349A (en) * | 2024-04-03 | 2024-05-07 | 山东凯布尔化工有限公司 | Closed tank for durene feeding |
-
2003
- 2003-06-05 CN CN 03231898 patent/CN2622501Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101341359B (en) * | 2005-12-21 | 2012-07-18 | 富士金株式会社 | Fluid impact resistant valve |
| CN105952919A (en) * | 2016-06-01 | 2016-09-21 | 成都格瑞思文化传播有限公司 | Novel leakproof valve |
| CN107023695A (en) * | 2017-05-27 | 2017-08-08 | 江苏龙迈环保设备有限公司 | A kind of operated pneumatic valve of two-way double structure |
| CN107023695B (en) * | 2017-05-27 | 2023-11-07 | 江苏龙迈环保设备有限公司 | Pneumatic valve with two-way double structure |
| CN108240482A (en) * | 2017-12-14 | 2018-07-03 | 浙江理工大学 | The flute profile double-flashboard gate valve that magnetism opens and closes |
| CN108240482B (en) * | 2017-12-14 | 2023-05-09 | 浙江理工大学 | Tooth type double-flashboard gate valve opened and closed magnetically |
| CN109185488A (en) * | 2018-11-13 | 2019-01-11 | 江苏圣泰阀门有限公司 | A kind of high-pressure seal gate valve |
| CN109185488B (en) * | 2018-11-13 | 2019-12-31 | 江苏圣泰阀门有限公司 | High-pressure sealing gate valve |
| CN112112981A (en) * | 2020-10-22 | 2020-12-22 | 重庆磐恒阀门有限公司 | High leakproofness gas solenoid valve |
| CN117985349A (en) * | 2024-04-03 | 2024-05-07 | 山东凯布尔化工有限公司 | Closed tank for durene feeding |
| CN117985349B (en) * | 2024-04-03 | 2024-05-31 | 山东凯布尔化工有限公司 | Closed tank for durene feeding |
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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 |