CN2854119Y - Hydraulic intake-butterfly valve of high waterhead hydroturbine - Google Patents
Hydraulic intake-butterfly valve of high waterhead hydroturbine Download PDFInfo
- Publication number
- CN2854119Y CN2854119Y CNU2005201435416U CN200520143541U CN2854119Y CN 2854119 Y CN2854119 Y CN 2854119Y CN U2005201435416 U CNU2005201435416 U CN U2005201435416U CN 200520143541 U CN200520143541 U CN 200520143541U CN 2854119 Y CN2854119 Y CN 2854119Y
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- CN
- China
- Prior art keywords
- valve
- value
- encapsulated
- utility
- model
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
Disclosed is a high waterhead hydraulic turbine hydraulic inlet butterfly valve comprising a body of valve, a valve base and a value board engaging with the value base which is installed inside the flow passage of the body of value. A hydraulic cylinder is arranged outside the body of value, the hydraulic cylinder is connected with the valve-spindles through the crank and controls the movement of the crank, which is characterized in that the value base is of an awl-shape construction on the inner ring table of the value base, the encapsulated ring, which forms a encapsulation with the encapsulated surface of the value base, is fixed on the outer surface of the value board, the encapsulated surface engaging with the encapsulated ring is an inclined awl construction, the value board is double-plate reinforcement overflowing construction. The utility model is based on the conclusion of the low waterhead rubber seal value and the high waterhead ball valve, and the utility model employs a novel hard encapsulated construction, the encapsulated copy is made of non-corrodible steel and alloys, the encapsulated face is an inclined awl face, which make the encapsulated copy a tight awl value. The utility model tights more when closed more, the utility model is encapsulated well and anti-abrasive, makes the butterfly valve act like the ball valve in a high waterhead pressure, thereby reducing one time investment greatly.
Description
Technical field
The utility model relates to valve, particularly relates to a kind of high head hydraulic turbine into water butterfly valve that surges.
Background technique
At present, water turbine inlet butterfly valve commonly used all is under the industrial and mineral that is used for than low water head, and its sealing is rubber seal substantially; Because pressure is bigger, adopt ball valve control hydroturbine water intake both at home and abroad at present mostly, but the ball valve volume is bigger for high head, weight is 2～3 times of same level butterfly valve, particularly the manufacture difficulty of heavy caliber ball valve is bigger, and disposable input is higher, causes product cost higher.Can design a kind of not only adapted to high head pressure, but also can reduce valve manufacture difficulty, reduce cost, these problems have caused relevant designer's concern in the industry.
Summary of the invention
The purpose of this utility model just at above-mentioned existing in prior technology problem and custom-designed a kind of high head hydraulic turbine rational in infrastructure, that fabricating cost is low surges into water butterfly valve, this butterfly valve adopts novel hard sealing structure, can be issued to the using effect of ball valve at high head pressure, significantly reduce one-time investment, had good economic benefit and social benefit.
The purpose of this utility model realizes by following scheme:
This high head hydraulic turbine surges into, and the water butterfly valve comprises valve body, valve seat, and be installed in valve plate in the valve flowing channel, that match with valve seat by valve shaft, in the valve body outer installment hydraulic jack is arranged, hydraulic jack is connected with valve shaft by crank and controls its rotation, wherein: valve seat is the conical ring structure, the seal ring that forms sealing pair with sealing surface of seat is fixed on the valve plate excircle by platen, its matching trim is the tilted conical surface structure, valve plate is two dull and stereotyped reinforcement overflow-type structures, the bulk strength height, flow resistance is little, reduces the pressure loss.
In the utility model, valve seat is directly processing conical ring structure on the ring platform in valve body, and valve seat and seal ring are stainless steel or Hardmetal materials is made, and sealing pair is metal a---metal, can realize zero scratch of switching process, reach reliable sealing effect under the high head.Sealing pair is processed through special process, and is wear-resistant, long service life.
This hydraulic butterfly valve working principle as follows: before driving valve, open the bypass tube valve, water enters spiral case, the outlet valve automatic vent, when treating that high head hydraulic turbine water inlet butterfly valve main valve front and back pressure difference reaches preset value, hydraulic jack drives crank, valve shaft, valve plate rotation, open main valve, after valve plate reached fully open position, the hydraulic locking oil cylinder can lock the valve plate fully open position, closes the bypass tube valve simultaneously.When needs closed valve, hydraulic jack drove crank and rotates, and valve plate rotates, and realized closing valve.
This hydraulic butterfly valve is same as the prior art basic by the working principle and the process of hydraulic jack throttle down, this hydraulic butterfly valve is the valve seat of valve and the sealing configuration of valve plate with the essential distinction of prior art, adopt novel hard sealing structure, make butterfly valve under the high head situation, realize the sealing effect of ball valve.
Advantage of the present utility model is:
1. sealing pair is that stainless steel or Hardmetal materials are made, and sealing surface is a tilted conical surface, and it is tight to make sealing pair form wedge brake, has the tight more performance in pass more, seals sternly, wear-resistant, and under high head pressure, unfailing performance is higher.
2. valve plate cooperates employing three eccentric designs with valve body, makes valve have good closing property.
3. valve plate adopts two dull and stereotyped reinforcement overflow-type designs, and valve shaft is installed between two flat boards, the bulk strength height, and flow resistance is little, can reduce the pressure loss.
4. anti-silt self-fastening sealing structure is adopted in axial seal, and sealing effect improves, and long-term the use if leak can overhaul, change seal ring not taking apart under the valve body situation.
In a word, the utility model is on the basis of summing up low water head rubber sealed valve and high head ball valve, adopts novel hard sealing structure, makes butterfly valve reach the using effect of ball valve under the high head pressure, significantly reduce one-time investment, had good economic benefit and social benefit.
Description of drawings
Fig. 1 is a profile plan view of the present utility model.
Fig. 2 is the side view (fixing state with the basis) of Fig. 1.
Fig. 3 is the higher plan view of sealing pair of the present utility model.
Among the figure: 1 is valve plate, 1 ' be the gusset plate in the through flow valve plate, 2 is seal ring, and 3 is platen, and 4 is valve seat, and 5 is valve body, and 6 is oil cylinder, and 7 is crank, 8 valve shafts, 9 is bypass tube, 10 for taking in the downstream.
Embodiment
The utility model is further described below in conjunction with accompanying drawing:
As Fig. 1,2, shown in 3: this high head hydraulic turbine surges into that the water butterfly valve comprises valve body 5, valve seat 4, and be installed in valve body 5 runners by valve shaft 8, the valve plate 1 that matches with valve seat 4, in valve body 5 outer installment hydraulic jack 6 is arranged, hydraulic jack 6 is connected with valve shaft 8 by crank 7 and controls its rotation, wherein: valve seat 4 is directly processing conical ring structure on the ring platform in valve body 5, the seal ring 2 that forms sealing pair with sealing surface of seat is fixed on valve plate 1 excircle by platen 3, its matching trim is the tilted conical surface structure, valve seat 4 is stainless steel with seal ring 2 or Hardmetal materials is made, sealing pair is metal a---metal, can realize zero scratch of switching process, and sealing pair is processed through special process, wear-resistant, can reach reliable sealing effect under the high head.Valve plate 1 is two dull and stereotyped reinforcement overflow-type structures, and valve shaft 8 is installed on bulk strength height between two flat boards, and flow resistance is little, can reduce the pressure loss.
Claims (2)
1, a kind of high head hydraulic turbine into water butterfly valve that surges, it comprises valve body (5), valve seat (4), and be installed in the valve flowing channel by valve shaft (8), the valve plate (1) that matches with valve seat (4), in valve body (5) outer installment hydraulic jack (6) is arranged, hydraulic jack is connected with valve shaft (8) by crank (7) and controls its rotation, it is characterized in that: valve seat (4) is the conical ring structure, the seal ring (2) that forms sealing pair with sealing surface of seat is fixed on valve plate (1) excircle by platen (3), its matching trim is the tilted conical surface structure, and valve plate (1) is two dull and stereotyped reinforcement overflow-type structures.
2, the high head hydraulic turbine according to claim 1 into water butterfly valve that surges is characterized in that: valve seat (4) encircles conical ring structure on the platform for direct processing valve body (5) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201435416U CN2854119Y (en) | 2005-12-12 | 2005-12-12 | Hydraulic intake-butterfly valve of high waterhead hydroturbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005201435416U CN2854119Y (en) | 2005-12-12 | 2005-12-12 | Hydraulic intake-butterfly valve of high waterhead hydroturbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854119Y true CN2854119Y (en) | 2007-01-03 |
Family
ID=37580750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005201435416U Expired - Fee Related CN2854119Y (en) | 2005-12-12 | 2005-12-12 | Hydraulic intake-butterfly valve of high waterhead hydroturbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854119Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691801A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Method for maintaining butterfly valve sealing mechanism on line |
-
2005
- 2005-12-12 CN CNU2005201435416U patent/CN2854119Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691801A (en) * | 2012-06-11 | 2012-09-26 | 格朗富（苏州）集团有限公司 | Method for maintaining butterfly valve sealing mechanism on line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070103 Termination date: 20100112 |