CN204512585U - A kind of water turbine extended type water inlet butterfly valve - Google Patents
A kind of water turbine extended type water inlet butterfly valve Download PDFInfo
- Publication number
- CN204512585U CN204512585U CN201420861925.0U CN201420861925U CN204512585U CN 204512585 U CN204512585 U CN 204512585U CN 201420861925 U CN201420861925 U CN 201420861925U CN 204512585 U CN204512585 U CN 204512585U
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- Prior art keywords
- butterfly valve
- valve
- bypass
- valve body
- tube
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Abstract
A kind of water turbine extended type water inlet butterfly valve, comprise valve body, valve body arranges electric butterfly valve, valve body is divided into upstream side connecting tube and downstream side connecting tube by the valve of electric butterfly valve, it is characterized in that: the length L of described valve body is 600-800mm, the tube wall being positioned at upstream side connecting tube at valve body opens upstream bypass hole, the tube wall that valve body is positioned at downstream side connecting tube opens downstream bypass hole, upstream and downstream by-pass hole, through being welded to connect bypass tube, bypass tube is installed bypass butterfly valve.Before electric butterfly valve is opened, first open bypass butterfly valve, through bypass tube and bypass butterfly valve to electric butterfly valve valve rear portion water-filling, after valve body both sides reach concora crush, just electric butterfly valve can be opened in hydrostatic, thus reduce valve load, extend water inlet butterfly valve working life, water inlet butterfly valve structure is simpler, reduce manufacture cost, and make, into water butterfly valve shorten length, to save installing space, manpower and materials spent during minimizing excavation foundation.
Description
Technical field
The utility model relates to water turbine inlet butterfly valve, particularly relates to a kind of water turbine extended type water inlet butterfly valve.
Background technique
Water turbine inlet butterfly valve is arranged on spiral case inlet, and its effect is when water turbine set accident flies ease, and urgent dynamic water closes inlet valve; protection unit safety, set speed adjustment systematic failures, under generating unit speed is elevated to setting valve situation; dynamic water emergency cut-off, in case fault spread.In the water power plant of one pipe multimachine, when a unit fault need be overhauled, closing the inlet valve before this unit can carry out service work, and can not affect the normal work of other units.The structure of existing water turbine inlet butterfly valve is (as Fig. 3, shown in Fig. 4) generally comprise electric butterfly valve 1 ', electric butterfly valve body length is 300mm, telescopic pipe 2 ' and upstream short tube 3 ' is connected in the valve body side of electric butterfly valve, opposite side connects downstream short tube 4 ', the outer side wall of upstream short tube is shaped with upstream bypass pipe 5 ', the outer side wall of downstream short tube is shaped with downstream bypass pipe, on, downstream bypass pipe is connected through bypass butterfly valve 6 ', the shortcoming that this water turbine inlet butterfly valve exists is: 1, because the valve body of electric butterfly valve is shorter, need at connection upstream, both sides short tube, telescopic pipe and downstream short tube, such could upper, the sidewall connecting bypass pipe of downstream short tube, thus cause the structure length of whole water inlet butterfly valve very long, water power plant needs to expend very large manpower when excavation foundation unable, and old water power plant undergoes technological transformation, when upgrading water inlet butterfly valve, will excavation foundation again, waste time and energy equally, 2, this structure water inlet butterfly valve structure is complicated, and manufacture cost is high.
Summary of the invention
The purpose of this utility model is the shortcoming existed to overcome prior art, and provide a kind of overall volume little, structure is simple, reduce manufacture cost, installing space is economized, and can effectively cut down pipeline stress, a kind of water turbine extended type water inlet butterfly valve of water inlet butterfly valve long service life.
The technological scheme of a kind of water turbine extended type water inlet of the utility model butterfly valve is: comprise valve body, valve body arranges electric butterfly valve, valve body is divided into upstream side connecting tube and downstream side connecting tube by the valve of electric butterfly valve, it is characterized in that: the length L of described valve body is 600-800mm, the tube wall being positioned at upstream side connecting tube at valve body opens upstream bypass hole, the tube wall that valve body is positioned at downstream side connecting tube opens downstream bypass hole, upstream and downstream by-pass hole, through being welded to connect bypass tube, bypass tube is installed bypass butterfly valve.
The utility model discloses a kind of water turbine extended type water inlet butterfly valve, major character the length of valve body is increased (body length L mentioned here is that 600-800mm refers to that caliber is the valve body of 800mm, for different calibers, the length that valve body increases is also different, be generally 2-3 times of the identical caliber body length of existing structure), so just, upstream bypass hole and downstream bypass hole directly can be opened on valve body, and upper, hole is welded to connect bypass tube to downstream bypass, bypass tube is installed bypass butterfly valve, because the valve of electric butterfly valve can be closed in dynamic water, but can not open under dynamic regimen condition, so install bypass tube and bypass butterfly valve on valve body, can before electric butterfly valve be opened, first open bypass butterfly valve, through bypass tube and bypass butterfly valve to electric butterfly valve valve rear portion water-filling, after valve body both sides reach concora crush, just electric butterfly valve can be opened in hydrostatic, thus reduce the load of valve, extend the working life of whole water inlet butterfly valve, and simplify upstream short tube, telescopic pipe and these parts of downstream short tube, make into water butterfly valve structure simpler, reduce manufacture cost, and make whole water inlet butterfly valve shorten length, save the space of installation, during particularly the inlet valve in some old water power plants is transformed, do not need again to change factory building foundation, manpower and materials spent during minimizing excavation foundation.
A kind of water turbine extended type water inlet of the utility model butterfly valve, the length L of described valve body is 700mm.Body length L mentioned here is that 700mm refers to that caliber is the valve body of 800mm, and for different calibers, the length that valve body increases is also different.
Accompanying drawing explanation
Fig. 1 is the schematic front view of a kind of water turbine extended type water inlet of the utility model butterfly valve;
Fig. 2 is A-A direction schematic partial cross-sectional view of Fig. 1;
Fig. 3 is the schematic front view of existing water turbine inlet butterfly valve;
Fig. 4 is the structural representation of existing water turbine inlet butterfly valve.
Embodiment
The utility model relates to a kind of water turbine extended type water inlet butterfly valve, as shown in Fig. 1-Fig. 2, comprise valve body 1, valve body is arranged electric butterfly valve 2, valve body is divided into upstream side connecting tube 3 and downstream side connecting tube 4 by the valve of electric butterfly valve, it is characterized in that: the length L of described valve body 1 is 600-800mm, the tube wall being positioned at upstream side connecting tube 3 at valve body opens upstream bypass hole 5, the tube wall that valve body is positioned at downstream side connecting tube 4 opens downstream bypass hole 6, upstream and downstream by-pass hole, through being welded to connect bypass tube 7, bypass tube is installed bypass butterfly valve 8.Major character is that (body length L mentioned here is that 600-800mm refers to that caliber is the valve body of 800mm by the growth of the length of valve body 1, for different calibers, the length that valve body increases is also different, be generally 2-3 times of the identical caliber body length of existing structure), so just, directly upstream bypass hole 5 and downstream bypass hole 6 can be opened on valve body 1, and upper, downstream bypass hole is welded to connect bypass tube 7, bypass tube is installed bypass butterfly valve 8, because the valve of electric butterfly valve 2 can be closed in dynamic water, but can not open under dynamic regimen condition, so install bypass tube 7 and bypass butterfly valve 8 on valve body 1, can before electric butterfly valve be opened, first open bypass butterfly valve 8, through bypass tube 7 and bypass butterfly valve to electric butterfly valve 2 valve rear portion water-filling, after valve body 1 both sides reach concora crush, just electric butterfly valve can be opened in hydrostatic, thus reduce the load of valve, extend the working life of whole water inlet butterfly valve, and simplify upstream short tube, telescopic pipe and these parts of downstream short tube, make into water butterfly valve structure simpler, reduce manufacture cost, and make whole water inlet butterfly valve shorten length, save the space of installation, during particularly the inlet valve in some old water power plants is transformed, do not need again to change factory building foundation, manpower and materials spent during minimizing excavation foundation.The length L of described valve body 1 is 700mm.Valve body 1 length L mentioned here is that 700mm refers to that caliber is the valve body of 800mm, and for different calibers, the length that valve body increases is also different.
Claims (2)
1. a water turbine extended type water inlet butterfly valve, comprise valve body (1), valve body is arranged electric butterfly valve (2), valve body is divided into upstream side connecting tube (3) and downstream side connecting tube (4) by the valve of electric butterfly valve, it is characterized in that: the length L of described valve body (1) is 600-800mm, the tube wall being positioned at upstream side connecting tube (3) at valve body opens upstream bypass hole (5), the tube wall that valve body is positioned at downstream side connecting tube (4) opens downstream bypass hole (6), upstream and downstream by-pass hole, through being welded to connect bypass tube (7), bypass tube is installed bypass butterfly valve (8).
2. a kind of water turbine extended type water inlet butterfly valve as claimed in claim 1, is characterized in that: the length L of described valve body (1) is 700mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861925.0U CN204512585U (en) | 2014-12-31 | 2014-12-31 | A kind of water turbine extended type water inlet butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420861925.0U CN204512585U (en) | 2014-12-31 | 2014-12-31 | A kind of water turbine extended type water inlet butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512585U true CN204512585U (en) | 2015-07-29 |
Family
ID=53710563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420861925.0U Expired - Fee Related CN204512585U (en) | 2014-12-31 | 2014-12-31 | A kind of water turbine extended type water inlet butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204512585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230704A (en) * | 2019-06-20 | 2019-09-13 | 武汉百耐流体控制设备有限公司 | A kind of damping butterfly valve |
-
2014
- 2014-12-31 CN CN201420861925.0U patent/CN204512585U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110230704A (en) * | 2019-06-20 | 2019-09-13 | 武汉百耐流体控制设备有限公司 | A kind of damping butterfly valve |
| CN110230704B (en) * | 2019-06-20 | 2024-05-24 | 武汉百耐流体控制设备有限公司 | Damping butterfly 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: 20150729 Termination date: 20161231 |