CN204626356U - A kind of power station water inlet main valve - Google Patents
A kind of power station water inlet main valve Download PDFInfo
- Publication number
- CN204626356U CN204626356U CN201520244093.2U CN201520244093U CN204626356U CN 204626356 U CN204626356 U CN 204626356U CN 201520244093 U CN201520244093 U CN 201520244093U CN 204626356 U CN204626356 U CN 204626356U
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- valve
- aqueduct
- water inlet
- air admission
- power station
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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
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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a kind of power station water inlet main valve, comprise controller, vacuum valve, air admission valve and aqueduct, it is characterized in that, the main body of described aqueduct is hunchbacked shape, the height of the water inlet of aqueduct is higher than the height of the delivery port of aqueduct, the top of back of a bow shape is provided with vacuum valve and air admission valve, and vacuum valve is connected with controller with air admission valve simultaneously.Water source, upstream can effectively be opened or be cut off to power station water inlet main valve, also can not leak and cause potential safety hazard, simultaneously water inlet main valve convenient maintenance and replacement after cutting long-time use.
Description
Technical field
The utility model relates to power station technical field, refers in particular to a kind of power station water inlet main valve.
Background technology
At present, conventional gate valve, butterfly valve, ball valve make the main valve of intake of hydropower station, and have a common fault: along with the prolongation of running time, water leakage can be increasing, are difficult to repair, bring very large puzzlement and potential safety hazard to the operation of turbine-generator units and maintenance.China Patent Publication No. CN103603837A, publication date on February 26th, 2014, name is called in the utility model patent of " intake of hydropower station high speed brake hydraulic control system " and discloses a kind of intake of hydropower station high speed brake hydraulic control system, comprises the first water inlet high speed brake control flow, the second water inlet high speed brake control flow and water inlet high speed brake and controls to share screen; Described water inlet high speed brake control to share shield 2, power station pressure oil pump and 1 slippage pump automatic, manual on off control, build pressure valve control, sound is alert to be controlled, oil pressure, oil temperature, filter are blocked up, the monitoring of main fuel tank oil level, oil feeding reservoir oil level, the hot standby switching of double dynamical power supply; First and second water inlet high speed brake control flow described completes the hand automatic operation that first and second water inlet hydraulic pressure high speed brake is opened slowly, closed slowly, stops respectively, express close operation; First and second water inlet high speed brake control flow described is monitored the front and back water level of first and second water inlet hydraulic pressure high speed brake, aperture, completely open and close stroke limit respectively.Weak point is, this control system still not solution can leak and bring the problem of potential safety hazard.
Summary of the invention
The purpose of this utility model overcomes intake of hydropower station main valve use for a long time in prior art can cause and leak, bring the shortcoming of safety risks, a kind of power station water inlet main valve is provided, the object cutting off drinking-water system water source completely can be reached by water inlet main valve, leakage water problem can not be caused.
The purpose of this utility model is achieved by following technical proposals:
A kind of power station water inlet main valve, comprise controller, vacuum valve, air admission valve and aqueduct, it is characterized in that, the main body of described aqueduct is hunchbacked shape, the height of the water inlet of aqueduct is higher than the height of the delivery port of aqueduct, the top of back of a bow shape is provided with vacuum valve and air admission valve, and vacuum valve is connected with controller with air admission valve simultaneously.The main body of aqueduct is the siphon principle that the design of hunchbacked shape make use of liquid, after air in aqueduct is taken away by vacuum valve, the water of upstream has been sucked aqueduct by water inlet and has been discharged by delivery port, after completing this process, vacuum valve just can quit work, and the water of upstream is by aqueduct automatic jet; When needing to cut off the current in aqueduct, air admission valve work is only needed to introduce air in aqueduct, siphon is destroyed, because the top of aqueduct back of a bow shape is higher than level upstream, the water of upstream is made to pass through top, reach the object cutting off current completely, reach the effect of hydrogenerator water inlet main valve.
As a kind of preferred version, aqueduct water inlet is less than the gradient of aqueduct delivery port to hunchbacked shape top to the gradient at hunchbacked shape top.The water of upstream can be introduced aqueduct by this design more easily.
As a kind of preferred version, the section width of water inlet is greater than the section width of delivery port, and the section width of delivery port is consistent with the section width of follow-up aqueduct.This design can further ensure the stability of aqueduct diversion.
As a kind of preferred version, air admission valve comprises cylinder and valve seat, and the piston being provided with axostylus axostyle in cylinder and being socketed with axostylus axostyle, is provided with valve disc in valve seat, and the end of axostylus axostyle is also socketed with valve disc.What the design of cylinder and valve seat can ensure that valve opening can be stable put into aqueduct by air or valve closing can enter aqueduct by stable prevention air.
As a kind of preferred version, be socketed with spring outside axostylus axostyle, top and the cylinder head of spring are fixed, and the bottom of spring and the upper surface of piston are fixed.Spring can assist axostylus axostyle return, and make the cooperation of axostylus axostyle and valve seat more reliable, sealing performance is higher.
An operation method for power station water inlet main valve, comprises the following steps:
Step 1, controller controls vacuum valve and starts working, and diversion inner air tube is extracted out by vacuum valve, and the water of upstream flows to the delivery port of aqueduct by the water inlet of aqueduct; After aqueduct completes diversion function, controller controls vacuum valve and quits work;
Step 2, controller controls air admission valve and starts working, and air admission valve injects air in aqueduct, and the aqueous reflux between air admission valve and water inlet in aqueduct goes back to upstream, and the water between air admission valve and delivery port in aqueduct is flowed out by delivery port;
Step 3, controller controls air admission valve and quits work, and air admission valve stops injecting air in aqueduct, and vacuum valve is started working, and the water inlet that the water of upstream continues through aqueduct flows to the delivery port of aqueduct.
As a kind of preferred version, step 2 also comprises after air admission valve injects air in aqueduct, after the time of setting, if delivery port not there are flowing out, jumps to step 3; If delivery port still there are flowing out, show that the water of upstream still flows to the delivery port of aqueduct by the water inlet of aqueduct, upper pond level exceedes top or the vacuum breaking defective valve of aqueduct, and controller controls vacuum valve and air admission valve quits work and sends warning reminding related personnel.
The beneficial effects of the utility model are, water source, upstream can effectively be opened or be cut off to power station water inlet main valve and operation method thereof, also can not leak and cause potential safety hazard, simultaneously water inlet main valve convenient maintenance and replacement after cutting long-time use.The utility model is practical, is easy to realize.
Accompanying drawing explanation
Fig. 1 is a kind of structure principle chart of the present utility model;
Fig. 2 is the sectional drawing of air admission valve of the present utility model.
Wherein: 1, controller, 2, vacuum valve, 3, air admission valve, 4, aqueduct, 5, water inlet, 6, delivery port, 7, water, 8, cylinder, 9, valve seat, 10, axostylus axostyle, 11, piston, 12, valve disc, 13, spring.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described.
Embodiment: a kind of power station water inlet main valve, its structure principle chart as shown in Figure 1, comprise controller 1, vacuum valve 2, air admission valve 3 and aqueduct 4, the main body of described aqueduct is hunchbacked shape, the height of the water inlet 5 of aqueduct is higher than the height of the delivery port 6 of aqueduct, the top of back of a bow shape is provided with vacuum valve and air admission valve, and vacuum valve is connected with controller with air admission valve simultaneously.Aqueduct water inlet is less than the gradient of aqueduct delivery port to hunchbacked shape top to the gradient at hunchbacked shape top.The section width of water inlet is greater than the section width of delivery port, and the section width of described delivery port is consistent with the section width of follow-up aqueduct.
The theme of aqueduct is the siphon principle that the design of hunchbacked shape make use of liquid, after air in aqueduct is taken away by vacuum valve, the water 7 of upstream has been sucked aqueduct by water inlet and has been discharged by delivery port, after completing this process, vacuum valve just can quit work, and the water of upstream is by aqueduct automatic jet; When needing to cut off the current in aqueduct, air admission valve work is only needed to introduce air in aqueduct, siphon is destroyed, because the top of aqueduct back of a bow shape is higher than level upstream, the water of upstream is made to pass through top, reach the object cutting off current completely, reach the effect of hydrogenerator water inlet main valve.
As shown in Figure 2, air admission valve comprises cylinder 8 and valve seat 9 to the sectional drawing of air admission valve, be provided with in cylinder axostylus axostyle 10 and with the piston 11 that axostylus axostyle is socketed, be provided with valve disc 12 in valve seat, the end of axostylus axostyle is also socketed with valve disc.Be socketed with spring 13 outside axostylus axostyle, top and the cylinder head of spring are fixed, and the bottom of spring and the upper surface of piston are fixed.
An operation method for power station water inlet main valve, is characterized in that, comprise the following steps:
Step 1, controller controls vacuum valve and starts working, and diversion inner air tube is extracted out by vacuum valve, and the water of upstream flows to the delivery port of aqueduct by the water inlet of aqueduct; After aqueduct completes diversion function, controller controls vacuum valve and quits work;
Step 2, controller controls air admission valve and starts working, and air admission valve injects air in aqueduct, and the aqueous reflux between air admission valve and water inlet in aqueduct goes back to upstream, and the water between air admission valve and delivery port in aqueduct is flowed out by delivery port; After air admission valve injects air in aqueduct, after the time of setting, if delivery port not there are flowing out, jump to step 3; If delivery port still there are flowing out, show that the water of upstream still flows to the delivery port of aqueduct by the water inlet of aqueduct, upper pond level exceedes top or the vacuum breaking defective valve of aqueduct, and controller controls vacuum valve and air admission valve quits work and sends warning reminding related personnel.
Step 3, controller controls air admission valve and quits work, and air admission valve stops injecting air in aqueduct, and vacuum valve is started working, and the water inlet that the water of upstream continues through aqueduct flows to the delivery port of aqueduct.
Claims (5)
1. a power station water inlet main valve, it is characterized in that, comprise controller, vacuum valve, air admission valve and aqueduct, it is characterized in that, the main body of described aqueduct is hunchbacked shape, the height of the water inlet of aqueduct is higher than the height of the delivery port of aqueduct, and the top of hunchbacked shape is provided with vacuum valve and air admission valve, and vacuum valve and air admission valve are connected with controller simultaneously.
2. a kind of power station according to claim 1 water inlet main valve, is characterized in that, described aqueduct water inlet is less than the gradient of aqueduct delivery port to hunchbacked shape top to the gradient at hunchbacked shape top.
3. a kind of power station according to claim 1 and 2 water inlet main valve, it is characterized in that, the section width of described water inlet is greater than the section width of delivery port, and the section width of described delivery port is consistent with the section width of follow-up aqueduct.
4. a kind of power station according to claim 3 water inlet main valve, it is characterized in that, described air admission valve comprises cylinder and valve seat, the piston being provided with axostylus axostyle in cylinder and being socketed with axostylus axostyle, be provided with valve disc in valve seat, the end of axostylus axostyle is also socketed with valve disc.
5. a kind of power station according to claim 4 water inlet main valve, it is characterized in that, be socketed with spring outside described axostylus axostyle, top and the cylinder head of spring are fixed, and the bottom of spring and the upper surface of piston are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244093.2U CN204626356U (en) | 2015-04-22 | 2015-04-22 | A kind of power station water inlet main valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520244093.2U CN204626356U (en) | 2015-04-22 | 2015-04-22 | A kind of power station water inlet main valve |
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| Publication Number | Publication Date |
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| CN204626356U true CN204626356U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520244093.2U Active CN204626356U (en) | 2015-04-22 | 2015-04-22 | A kind of power station water inlet main valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846794A (en) * | 2015-04-22 | 2015-08-19 | 杭州富春江水电设备有限公司 | Water inlet main valve for hydropower station and operation method thereof |
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2015
- 2015-04-22 CN CN201520244093.2U patent/CN204626356U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104846794A (en) * | 2015-04-22 | 2015-08-19 | 杭州富春江水电设备有限公司 | Water inlet main valve for hydropower station and operation method thereof |
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