CN202646759U - High water head full bore pump station ball valve - Google Patents
High water head full bore pump station ball valve Download PDFInfo
- Publication number
- CN202646759U CN202646759U CN 201220310930 CN201220310930U CN202646759U CN 202646759 U CN202646759 U CN 202646759U CN 201220310930 CN201220310930 CN 201220310930 CN 201220310930 U CN201220310930 U CN 201220310930U CN 202646759 U CN202646759 U CN 202646759U
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- valve
- valve body
- sealing pair
- barrel
- full bore
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- Expired - Fee Related
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Abstract
The utility model discloses a high water head full bore pump station ball valve which comprises a valve and a bib arranged in the valve body. The bib is connected with a valve shaft and is controlled to rotate through an operation mechanism, a sealing device is arranged on the valve body, the valve body is composed of a left valve body and a right valve body, the operation mechanism is arranged outside the valve body, and a left sealing pair and a right sealing pair which are same in structure are symmetrically arranged on the left valve body and the right valve body. The high water head full bore pump station ball valve has the advantages that the drift diameter is full bore, the flow resistance coefficient is about zero when the ball valve is completely opened, and water delivery efficiency is high. Two sets of movable sealing pairs of the same structure are respectively arranged on the water inlet side and the water outlet side of the valve body. In working, only a working sealing pair is in use. In overhaul, the overhaul sealing pair is put into use without discharging water in a pressure steel tube. The operation mechanism is arranged outside the valve body. When the valve is opened or closed, the operation mechanism drives the valve shaft and the bib to rotate in a 90-degree range to achieve the purpose of cutting off or communicating media.
Description
Technical field
The utility model relates to ball valve, especially relates to a kind of high head full-bore pumping plant ball valve.
Background technique
The pump station engineering of low water head extensively adopts butterfly valve as the protecting valve of exit of pump, but working pressure is lower, generally below 2.5MPa, for the higher high head pumping plant engineering of pressure, use butterfly valve both uneconomical also dangerous, also because there are the parts that block water in butterfly valve inside, not only flow resistance is large, the medium fluidised form is also bad, has had a strong impact on the emptying effectiveness of pumping plant.
Summary of the invention
The purpose of this utility model is to provide that a kind of emptying effectiveness is high, the high head full-bore pumping plant ball valve of safety economy.
For achieving the above object, the utility model can be taked following technical proposals:
High head full-bore pumping plant ball valve described in the utility model comprises valve body and places the interior valve of valve body that described valve is connected with valve shaft, controls its rotation by operating device, is provided with seal arrangement at valve body; Described valve body is comprised of left valve barrel and right valve barrel, and described operating device is arranged on the outside of valve body; Be symmetrically arranged with the identical left sealing pair of structure and right sealing pair at described left valve barrel and right valve barrel.
Be fixed with the valve seal ring by adjusting screw on the described valve, right sealing pair wherein comprises the end cap that is connected on the right valve barrel, and be movably placed in valve seals between right valve barrel and the end cap, valve seal ring and end cap, the right valve barrel suitable with the conical surface of valve seals have consisted of the space of placing valve seals, and the oil duct A and the oil duct B that are opened in respectively on described end cap and the right valve barrel are connected with the space of this placement valve seals.
The utility model has the advantage of that latus rectum is full-bore, the flow resistance coefficient during standard-sized sheet is zero substantially, and emptying effectiveness is high.At the influent side of valve body and water outlet side the identical movable type sealed of two nested structures being set respectively, secondary (influent side can be set as the maintenance sealing pair, water outlet side is set as the working seal pair), during normal operation, only the working seal pair comes into operation, when working seal or the maintenance of diameter of axle sealing needs, for the water in the not emptying penstock, do not affect the normal operation of other units simultaneously, will overhaul sealing pair and devote oneself to work.Because the two structure is identical and full symmetric, so can exchange each other.Operating device is arranged on the outside of valve body, and when valve need to open and close, operating device drove valve shaft and valve rotates in 90 ° of scopes, can reach the purpose of blocking or being communicated with medium.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the side view of Fig. 1.
Structural representation when Fig. 3 is the sealing pair input.
Structural representation when Fig. 4 is the sealing pair releasing.
Embodiment
As shown in Figure 1, 2, high head full-bore pumping plant ball valve described in the utility model, comprise left valve barrel 4 and right valve barrel 5, be provided with valve 1 between the left and right valve body, valve 1 is connected with valve shaft 2, then controlling it by the operating device 3 of valve body outside rotates in 90 ° of scopes, left valve barrel 4 is feed-water end, the left sealing pair that is arranged on the left valve barrel 4 is the maintenance sealing pair, right valve barrel 5 is the waterexit end, being arranged on right sealing pair on the right valve barrel 5 is that working seal is secondary, and maintenance sealing pair and working seal pair are symmetrical arranged, and structure is identical, can exchange.When valve need to open and close, operating device 3 drives valve shaft 2 and valve 1 rotates in 90 ° of scopes, can reach the purpose of blocking or being communicated with medium.Be fixed on the aperture that speed on the oil cylinder on the ground closes modulating valve by adjusting; change oil cylinder in the speed of dwell period; thereby can realize requirement (the first quick closing valve several angle that two stages of valve close; slowly close again the residue angle); it is the ideal equipment of eliminating water hammer, protection water pump and pipe network; can be installed on the exit of pump of all kinds of High head Pumping Station such as water conservancy, electric power, plumbing, as the protecting valve of exit of pump.
Be fixed with valve seal ring 7 by adjusting screw 6 on the valve 1, left sealing pair and right sealing pair are the movable differential-pressure type metal hard sealing structure, and full symmetric, can exchange each other.Its right sealing pair comprises the end cap 8 that is connected on the right valve barrel 5, and be movably placed in valve seals 9 between right valve barrel 5 and the end cap 8, valve seal ring 7 and end cap 8, the right valve barrel 5 suitable with the conical surface of valve seals 9 have consisted of the space of placing valve seals 9, and the oil duct A and the oil duct B that are opened in respectively on end cap 8 and the right valve barrel 5 are connected with the space of this placement valve seals 9.
When sealing pair need to drop into, oil-feed the oil duct A from end cap 8, the oil duct B from right valve barrel 5 is fuel-displaced, pressure oil promotes valve seals 9 and does straight line motion, until valve seals 9 contacts with valve seal ring 7, produces enough seal pressures, this moment, valve formed sealing, as shown in Figure 3.The seal pressure of sealing pair can be adjusted, to guarantee good sealability.When sealing pair need to be removed, pressure oil advanced from oil duct B, went out from oil duct A, promoted valve seals 9 reverse moving linearlies, and two sealing surfaces break away from fully, and can carry out normal open and close valve this moment again, as shown in Figure 4.
Claims (2)
1. a high head full-bore pumping plant ball valve comprises valve body and places the interior valve (1) of valve body, and described valve (1) is connected with valve shaft (2), controls its rotation by operating device (3), is provided with seal arrangement at valve body; It is characterized in that: described valve body is comprised of left valve barrel (4) and right valve barrel (5), and described operating device (3) is arranged on the outside of valve body; Be symmetrically arranged with the identical left sealing pair of structure and right sealing pair at described left valve barrel (4) and right valve barrel (5).
2. high head full-bore pumping plant ball valve according to claim 1, it is characterized in that: described valve (1) is upper to be fixed with valve seal ring (7) by adjusting screw (6), right sealing pair wherein comprises the end cap (8) that is connected on the right valve barrel (5), and be movably placed in valve seals (9) between right valve barrel (5) and the end cap (8), with suitable valve seal ring (7) and the end cap (8) of the conical surface of valve seals (9), right valve barrel (5) has consisted of the space of placement valve seals (9) together, and the oil duct A and the oil duct B that are opened in respectively on described end cap (8) and the right valve barrel (5) are connected with the space of this placement valve seals (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310930 CN202646759U (en) | 2012-06-29 | 2012-06-29 | High water head full bore pump station ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220310930 CN202646759U (en) | 2012-06-29 | 2012-06-29 | High water head full bore pump station ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646759U true CN202646759U (en) | 2013-01-02 |
Family
ID=47415868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220310930 Expired - Fee Related CN202646759U (en) | 2012-06-29 | 2012-06-29 | High water head full bore pump station ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332331A (en) * | 2019-07-29 | 2019-10-15 | 中阀科技(长沙)阀门有限公司 | A kind of eccentric full-path ball valve of asymmetric sealing structure |
-
2012
- 2012-06-29 CN CN 201220310930 patent/CN202646759U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332331A (en) * | 2019-07-29 | 2019-10-15 | 中阀科技(长沙)阀门有限公司 | A kind of eccentric full-path ball valve of asymmetric sealing structure |
| CN110332331B (en) * | 2019-07-29 | 2024-04-26 | 中阀科技(长沙)阀门有限公司 | Eccentric full-bore ball valve with asymmetric sealing structure |
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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: 20130102 Termination date: 20180629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |