CN202171025U - Gate valve with balanced type valve plate - Google Patents
Gate valve with balanced type valve plate Download PDFInfo
- Publication number
- CN202171025U CN202171025U CN2011203042826U CN201120304282U CN202171025U CN 202171025 U CN202171025 U CN 202171025U CN 2011203042826 U CN2011203042826 U CN 2011203042826U CN 201120304282 U CN201120304282 U CN 201120304282U CN 202171025 U CN202171025 U CN 202171025U
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- CN
- China
- Prior art keywords
- valve
- gate
- utility
- clack
- board
- 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
A gate valve with a balanced type valve plate. The utility model relates to the gate valve manufacturing field, especially to a gate valve with a heavy caliber and relatively large opening and closing torque. The gate valve in the utility model comprises a valve body, a valve stem and a valve seat. A main flashboard is equipped inside the valve body. A medium channel is equipped inside the main flashboard. The lower part of the valve stem is provided with an auxiliary valve clack. The auxiliary valve clack is correspondingly equipped above the medium channel. The valve stem and the auxiliary valve clack are connected through a ferrule which is equipped between the main flashboard and the auxiliary valve clack. A valve clack cover is connected on the upper end of the main flashboard in a threaded way. The gate valve provided in the utility model has the characteristics of simple structure, convenience and practicality. The harm to a valve is reduced. The service lifetime of the valve is prolonged. Small-sized electric fittings can be selected during an electric fitting selection process. Then the cost is reduced.
Description
Technical field
The utility model relates to the making field of gate valve, especially relates to a kind of heavy caliber, opens and closes the bigger gate valve of moment.
Background technique
Large bore valves can be used in a lot of places of fired power generating unit, and like the main steam line gate valve, bore is bigger, and pressure parameter is higher, so switching moment is big, must select bigger Denso, brings bigger load to pipeline virtually, has also increased the cost of power plant.Because switch moment is bigger, do not kill easily after not opening for a long time simultaneously, when opening, need bigger moment; The unlatching of this overburdening tends to bring negative effect to valve, and sealing surface abrades easily, and the valve rod head is stressed bigger; There is potential safety hazard in flexible type.
Summary of the invention
The utility model purpose is to provide a kind of simple in structure, convenient and practical gate valve with balanced type valve plate.
The utility model comprises valve body, valve rod, valve seat, in said valve body, main gate-board is set, at said main gate-board set inside medium runner; Secondary flap is set below said valve rod, and said secondary flap correspondence is arranged on the top of medium runner; Said valve rod is connected through cutting ferrule with secondary flap, and said cutting ferrule is arranged between main gate-board and the secondary flap; The flap lid is threaded in said main gate-board upper end.
The utility model is after Denso is opened, and valve rod begins to rise, and at first drives secondary flap and rises; After secondary flap is opened, medium by main gate-board inner passage flow valves after, make that pressure reduction lowers before and after the main gate-board; When valve rod continuation rising cutting ferrule began to contact with the flap lid, main gate-board began to rise, and this moment is isostasy after and before the valve; Frictional force reduces greatly between main gate-board and the sealing surface of seat, and the required moment of unlatching main gate-board is little a lot.The utility model is simple in structure, and is convenient and practical, and valve injury is reduced, and prolongs valve working life, when selecting Denso, can select small-sized Denso, reduced cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the A portion enlarged view of Fig. 1.
Embodiment
As shown in Figure 1, the utility model is provided with and comprises valve body 1, valve rod 2, valve seat 3, and main gate-board 4 is set in valve body 1, at main gate-board 4 set inside medium runners 5; Secondary flap 6 is set below valve rod 2, and secondary flap 6 correspondences are arranged on the top of medium runner 5; Valve rod 2 is connected through cutting ferrule 7 with secondary flap 6, and cutting ferrule 7 is arranged between main gate-board 4 and the secondary flap 6; The flap that is threaded in main gate-board 4 upper ends lid 8.
Claims (1)
1. the gate valve that has the balanced type valve plate comprises valve body, valve rod, valve seat, it is characterized in that: in said valve body, main gate-board is set, at said main gate-board set inside medium runner; Secondary flap is set below said valve rod, and said secondary flap correspondence is arranged on the top of medium runner; Said valve rod is connected through cutting ferrule with secondary flap, and said cutting ferrule is arranged between main gate-board and the secondary flap; The flap lid is threaded in said main gate-board upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203042826U CN202171025U (en) | 2011-08-19 | 2011-08-19 | Gate valve with balanced type valve plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203042826U CN202171025U (en) | 2011-08-19 | 2011-08-19 | Gate valve with balanced type valve plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171025U true CN202171025U (en) | 2012-03-21 |
Family
ID=45829221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203042826U Expired - Fee Related CN202171025U (en) | 2011-08-19 | 2011-08-19 | Gate valve with balanced type valve plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171025U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062428A (en) * | 2012-11-30 | 2013-04-24 | 上海仪杰自动化设备有限公司 | Self-sealing high-pressure valve |
| CN103671997A (en) * | 2013-12-31 | 2014-03-26 | 北京京诚科林环保科技有限公司 | Pressure relief device |
| CN103925382A (en) * | 2014-03-25 | 2014-07-16 | 南通市电站阀门有限公司 | Pilot plant sluice valve |
| CN111895173A (en) * | 2020-08-06 | 2020-11-06 | 武芳 | Gate valve |
-
2011
- 2011-08-19 CN CN2011203042826U patent/CN202171025U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062428A (en) * | 2012-11-30 | 2013-04-24 | 上海仪杰自动化设备有限公司 | Self-sealing high-pressure valve |
| CN103671997A (en) * | 2013-12-31 | 2014-03-26 | 北京京诚科林环保科技有限公司 | Pressure relief device |
| CN103925382A (en) * | 2014-03-25 | 2014-07-16 | 南通市电站阀门有限公司 | Pilot plant sluice valve |
| CN111895173A (en) * | 2020-08-06 | 2020-11-06 | 武芳 | Gate valve |
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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: 20120321 Termination date: 20180819 |