CN105089019A - Gate pressurizing water stopping method and device for ultra-high head - Google Patents
Gate pressurizing water stopping method and device for ultra-high head Download PDFInfo
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- CN105089019A CN105089019A CN201510307271.6A CN201510307271A CN105089019A CN 105089019 A CN105089019 A CN 105089019A CN 201510307271 A CN201510307271 A CN 201510307271A CN 105089019 A CN105089019 A CN 105089019A
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Abstract
The invention discloses a gate pressurizing water stopping method and device for an ultra-high head. When a pressurizing water seal (H) is connected with an upper level of a gate through a pipeline, the gate pressurizing water stopping device for the ultra-high head is arranged between the pressurizing water seal (H) and the upper level of the gate, and meanwhile the device is connected with a downstream side of the gate through a pipeline. Therefore, pressure acting on the pressurizing water seal (H) can be controlled through the device, so that the pressure acting on the pressurizing water seal (H) is kept consistent with system set pressure of the gate pressurizing water stopping device for the ultra-high head. According to the device, pressure control over a back side pressurizing cavity of the gate pressurizing water seal can be carried out; at the initial work stage of the gate water seal, the water filling pressure value can be properly turned down, and the water filing pressure value is properly increased along with prolonging of the work time limit of the gate water seal to slow down the stress relaxation and creep rate of a water seal material and prolong the working life of the pressurizing water seal; and when slight water leakage happens to gate water stopping, the water filling pressure value can be turned up, and the water stopping effect is enhanced.
Description
Technical field
the present invention relates to a kind of gate pressurising water-stopping method for ultrahigh-water head and device, belong to gate sealing technical field in Hydraulic and Hydro-Power Engineering.
Background technology
at present, the pressurising sealing water seal of gate, is in the pressurising sealing water seal under ultrahigh-water head dash state especially for a long time, because water seal dorsal part pressurising cavity pressure is excessive, makes water seal head rubber extruded power excessive; Because rubber itself exists stress relaxation and creep properties, long-term work, under excessive stresses and state of strain, not only can affect its life-span, also can have a negative impact to the stagnant water effect in later stage.
in current Practical Project, pressurising sealing utilizes gate upper pond hydraulic pressure to water seal pressurising chamber pressurising, and pressure changes with reservoir level, not easily adjusts, on life-span of water seal and later stage stagnant water effect impact very unfavorable.
Summary of the invention
the object of the invention is to, a kind of gate pressurising water-stopping method for ultrahigh-water head and device are provided, to slow down water-blocking material stress relaxation and creep process, to extend the stagnant water effect in water seal life-span and later stage, thus overcome the deficiencies in the prior art.
technical scheme of the present invention is achieved in that
a kind of gate pressurising water-stopping method for ultrahigh-water head of the present invention is, the method comprises and being arranged on gate recess by pressurized water seal H that pipeline is connected with gate upper pond level, when pressurized water seal H is connected with gate upper pond level by pipeline, a gate pressurising antipriming for ultrahigh-water head is set between pressurized water seal H and gate upper pond level, the gate pressurising antipriming simultaneously this being used for ultrahigh-water head is connected with gate downstream by pipeline, so namely, carry out the pressure of control action on pressurized water seal H by this device, the pressure acted on pressurized water seal H is consistent with the default pressure for the gate pressurising antipriming of ultrahigh-water head.
aforementioned for the gate pressurising antipriming of ultrahigh-water head in be provided with a high-pressure water tank D, pressurized water seal H is connected with the working interface of high-pressure water tank D by the pipeline being provided with stop valve, the water inlet of high-pressure water tank D is connected with gate upper pond level by the pipeline being provided with stop valve, the delivery port of high-pressure water tank D is connected with gate downstream by the pipeline being provided with stop valve, on high-pressure water tank D, is provided with the sensor F for pressure in detection and control high-pressure water tank D and accumulator E simultaneously, during normal work, high-pressure water tank D controls not to be communicated with gate downstream with gate upper pond level by stop valve, and be communicated with pressurized water seal H, pressure sensor F detects the pressure in high-pressure water tank D simultaneously, when the pressure in high-pressure water tank D is less than setting value, by stop valve, high-pressure water tank D is communicated with gate upper pond level, the upper water of gate upper pond level flows into high-pressure water tank D under pressure makes accumulator E accumulation of energy, make the pressure in high-pressure water tank D raise simultaneously, after high-pressure water tank D pressure is elevated to the pressure limit value of default, by closing stop valve, high-pressure water tank D is not communicated with gate upper pond level, when the pressure in high-pressure water tank D is greater than default value, by opening stop valve, high-pressure water tank D is communicated with gate downstream, at this moment high-pressure water tank D pressure release, accumulator E unloads energy simultaneously, after high-pressure water tank D pressure is reduced to the pressure limit value of setting, by stop valve, high-pressure water tank D is not communicated with gate downstream, the pressure that high-pressure water tank D can be made like this to act on pressure on pressurized water seal H and setting is consistent.
of the present invention a kind of gate pressurising antipriming for ultrahigh-water head according to said method structure is that this device comprises the pressurized water seal H be arranged on gate recess, and pressurized water seal H is connected with the working interface of high-pressure water tank D through stop valve B3 by pipeline; The water inlet of high-pressure water tank D is connected with gate upper pond level with strainer A1 through choke valve C1, stop valve B1 by pipeline; The delivery port of high-pressure water tank D is connected with the water level in gate downstream with strainer A2 through choke valve C2, stop valve B2 by pipeline; High-pressure water tank D is provided with pressure sensor F.
aforementioned in the gate pressurising antipriming of ultrahigh-water head, be provided with lateral between the connecting pipe of described strainer A1 and stop valve B1 and the connecting pipe of pressurized water seal H and stop valve B3, lateral is provided with stop valve B4.
aforementioned in the gate pressurising antipriming of ultrahigh-water head, described high-pressure water tank D is provided with accumulator E.
owing to have employed technique scheme, the present invention compared with prior art, the present invention can carry out Stress control to the dorsal part pressurising chamber of gate pressurized water seal, at the Jeakage through Sluice Sealant work initial stage, can suitably turn water-filling force value down, along with Jeakage through Sluice Sealant work timing lengthens, suitably increase water-filling force value, slow down stress relaxation and the creep rate of water-blocking material with this, extend the working life of pressurized water seal; When gate sealing have slightly leak time, also adjustable height water-filling force value, strengthen stagnant water effect.
Accompanying drawing explanation
fig. 1 is structural representation of the present invention.
Detailed description of the invention
below in conjunction with drawings and Examples, the present invention is described in further detail, but not as any limitation of the invention.
Embodiment
a kind of gate pressurising water-stopping method for ultrahigh-water head of the present invention is, the method comprises and being arranged on gate recess by pressurized water seal H that pipeline is connected with gate upper pond level, when pressurized water seal H is connected with gate upper pond level by pipeline, a gate pressurising antipriming for ultrahigh-water head is set between pressurized water seal H and gate upper pond level, the gate pressurising antipriming simultaneously this being used for ultrahigh-water head is connected with gate downstream by pipeline, so namely, carry out the pressure of control action on pressurized water seal H by this device, the pressure acted on pressurized water seal H is consistent with the default pressure for the gate pressurising antipriming of ultrahigh-water head, a high-pressure water tank D is provided with in for the gate pressurising antipriming of ultrahigh-water head, pressurized water seal H is connected with the working interface of high-pressure water tank D by the pipeline being provided with stop valve, the water inlet of high-pressure water tank D is connected with gate upper pond level by the pipeline being provided with stop valve, the delivery port of high-pressure water tank D is connected with gate downstream by the pipeline being provided with stop valve, on high-pressure water tank D, is provided with the sensor F for pressure in detection and control high-pressure water tank D and accumulator E simultaneously, during normal work, high-pressure water tank D controls not to be communicated with gate downstream with gate upper pond level by stop valve, and be communicated with pressurized water seal H, pressure sensor F detects the pressure in high-pressure water tank D simultaneously, when the pressure in high-pressure water tank D is less than setting value, by stop valve, high-pressure water tank D is communicated with gate upper pond level, the upper water of gate upper pond level flows into high-pressure water tank D under pressure makes accumulator E accumulation of energy, make the pressure in high-pressure water tank D raise simultaneously, after high-pressure water tank D pressure is elevated to the pressure limit value of default, by closing stop valve, high-pressure water tank D is not communicated with gate upper pond level, when the pressure in high-pressure water tank D is greater than default value, by opening stop valve, high-pressure water tank D is communicated with gate downstream, at this moment high-pressure water tank D pressure release, accumulator E unloads energy simultaneously, after high-pressure water tank D pressure is reduced to the pressure limit value of setting, by stop valve, high-pressure water tank D is not communicated with gate downstream, the pressure that high-pressure water tank D can be made like this to act on pressure on pressurized water seal H and setting is consistent.
according to said method build and for of the present invention a kind of gate pressurising antipriming for ultrahigh-water head of said method structural representation as shown in Figure 1, this device comprises the pressurized water seal H be arranged on gate recess, and pressurized water seal H is connected with the working interface of high-pressure water tank D through stop valve B3; The water inlet of high-pressure water tank D is connected with gate upper pond level with strainer A1 through choke valve C1, stop valve B1; The delivery port of high-pressure water tank D is connected with the water level in gate downstream with strainer A2 through choke valve C2, stop valve B2.Be provided with lateral between the connecting pipe of strainer A1 and stop valve B1 and the connecting pipe of pressurized water seal H and stop valve B3, lateral is provided with stop valve B4.High-pressure water tank D is provided with pressure sensor F.High-pressure water tank D is provided with accumulator E.
the course of work of the present invention and principle are described as follows:
during normal work, stop valve B1, B2, B4, choke valve C1 and C2 close, and stop valve B3 opens, and pressure sensor F detects the pressure in high-pressure water tank D; When the pressure in high-pressure water tank D is less than default value, stop valve B1, choke valve C1 open automatically, upper water flows into high-pressure water tank D through filter A1, stop valve B1, choke valve C1 under pressure, accumulator E accumulation of energy, after high-pressure water tank D pressure is elevated to the pressure limit value of default, stop valve B1, choke valve C1 close automatically; When the pressure in high-pressure water tank D is greater than default value, stop valve B2, choke valve C2 open, and the water in high-pressure water tank D enters gate downstream by choke valve C2, stop valve B2, strainer A2, and accumulator E unloads can; When after the default pressure limit value that high-pressure water tank D pressure is reduced to, stop valve B2, choke valve C2 close automatically; Stop valve B3 is in open mode all the time, and make the water pressure in high-pressure water tank D be delivered to the pressurising chamber of pressurized water seal H dorsal part, system is if there is a small amount of leakage, and accumulator E can maintain system pressure.When system parts needs maintenance or changes, can close stop valve B3, be pressurized water seal H pressurising by opening stop valve B4.Then close stop valve B1 and stop valve B2 to safeguard equipment.
accumulator E can adopt gasbag-type accumulator, high-pressure water tank D and accumulator E specification can be determined according to factors such as the total lengths of pressurized water seal H, system pressure setting value can be determined according to the cross section of pressurized water seal H and sealing face material behavior, and is set by the system pressure of pressure sensor F to apparatus of the present invention or regulated.
Claims (5)
1. the gate pressurising water-stopping method for ultrahigh-water head, comprise and being arranged on gate recess by pressurized water seal H that pipeline is connected with gate upper pond level, it is characterized in that: when pressurized water seal H is connected with gate upper pond level by pipeline, a gate pressurising antipriming for ultrahigh-water head is set between pressurized water seal H and gate upper pond level, the gate pressurising antipriming simultaneously this being used for ultrahigh-water head is connected with gate downstream by pipeline, so namely, carry out the pressure of control action on pressurized water seal H by this device, the pressure acted on pressurized water seal H is consistent with the default pressure for the gate pressurising antipriming of ultrahigh-water head.
2. the gate pressurising water-stopping method for ultrahigh-water head according to claim 1, it is characterized in that: described for the gate pressurising antipriming of ultrahigh-water head in be provided with a high-pressure water tank D, pressurized water seal H is connected with the working interface of high-pressure water tank D by the pipeline being provided with stop valve, the water inlet of high-pressure water tank D is connected with gate upper pond level by the pipeline being provided with stop valve, the delivery port of high-pressure water tank D is connected with gate downstream by the pipeline being provided with stop valve, on high-pressure water tank D, be provided with the sensor F for pressure in detection and control high-pressure water tank D and accumulator E simultaneously, during normal work, high-pressure water tank D controls not to be communicated with gate downstream with gate upper pond level by stop valve, and be communicated with pressurized water seal H, pressure sensor F detects the pressure in high-pressure water tank D simultaneously, when the pressure in high-pressure water tank D is less than setting value, by stop valve, high-pressure water tank D is communicated with gate upper pond level, the upper water of gate upper pond level flows into high-pressure water tank D under pressure makes accumulator E accumulation of energy, make the pressure in high-pressure water tank D raise simultaneously, after high-pressure water tank D pressure is elevated to the pressure limit value of default, by closing stop valve, high-pressure water tank D is not communicated with gate upper pond level, when the pressure in high-pressure water tank D is greater than default value, by opening stop valve, high-pressure water tank D is communicated with gate downstream, at this moment high-pressure water tank D pressure release, accumulator E unloads energy simultaneously, after high-pressure water tank D pressure is reduced to the pressure limit value of setting, by stop valve, high-pressure water tank D is not communicated with gate downstream, the pressure that high-pressure water tank D can be made like this to act on pressure on pressurized water seal H and setting is consistent.
3., for a gate pressurising antipriming for ultrahigh-water head, comprise the pressurized water seal H be arranged on gate recess, it is characterized in that: pressurized water seal H is connected with the working interface of high-pressure water tank D through stop valve B3 by pipeline; The water inlet of high-pressure water tank D is connected with gate upper pond level with strainer A1 through choke valve C1, stop valve B1 by pipeline; The delivery port of high-pressure water tank D is connected with the water level in gate downstream with strainer A2 through choke valve C2, stop valve B2 by pipeline, and high-pressure water tank D is provided with pressure sensor F.
4. according to claim 3 for the gate pressurising antipriming of ultrahigh-water head, it is characterized in that: be provided with lateral between the connecting pipe of described strainer A1 and stop valve B1 and the connecting pipe of pressurized water seal H and stop valve B3, and on lateral, be provided with stop valve B4.
5., according to claim 3 for the gate pressurising antipriming of ultrahigh-water head, it is characterized in that: on high-pressure water tank D, be provided with accumulator E.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307271.6A CN105089019A (en) | 2015-06-08 | 2015-06-08 | Gate pressurizing water stopping method and device for ultra-high head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510307271.6A CN105089019A (en) | 2015-06-08 | 2015-06-08 | Gate pressurizing water stopping method and device for ultra-high head |
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| CN105089019A true CN105089019A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510307271.6A Pending CN105089019A (en) | 2015-06-08 | 2015-06-08 | Gate pressurizing water stopping method and device for ultra-high head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127564A (en) * | 2023-10-26 | 2023-11-28 | 华能澜沧江水电股份有限公司 | Pressure maintaining system for gate water seal |
Citations (6)
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| CN201056682Y (en) * | 2007-11-05 | 2008-05-07 | 中国水电顾问集团昆明勘测设计研究院 | Water sealing device of high water head radial gate |
| CN101338556A (en) * | 2008-05-09 | 2009-01-07 | 水利部新疆维吾尔自治区水利水电勘测设计研究院 | High head radial gate pneumatic active water-stopping system |
| CN201627184U (en) * | 2010-02-24 | 2010-11-10 | 中国水电顾问集团华东勘测设计研究院 | Auto-pressure regulating water-stopping sealing structure for gate |
| CN202359536U (en) * | 2011-11-17 | 2012-08-01 | 长江勘测规划设计研究有限责任公司 | Pressurized water stop device of gate |
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2015
- 2015-06-08 CN CN201510307271.6A patent/CN105089019A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201056682Y (en) * | 2007-11-05 | 2008-05-07 | 中国水电顾问集团昆明勘测设计研究院 | Water sealing device of high water head radial gate |
| CN101338556A (en) * | 2008-05-09 | 2009-01-07 | 水利部新疆维吾尔自治区水利水电勘测设计研究院 | High head radial gate pneumatic active water-stopping system |
| CN201627184U (en) * | 2010-02-24 | 2010-11-10 | 中国水电顾问集团华东勘测设计研究院 | Auto-pressure regulating water-stopping sealing structure for gate |
| CN202359536U (en) * | 2011-11-17 | 2012-08-01 | 长江勘测规划设计研究有限责任公司 | Pressurized water stop device of gate |
| KR101507693B1 (en) * | 2014-11-19 | 2015-04-07 | 박기철 | Agricultural hydrology open device |
| CN204715309U (en) * | 2015-06-08 | 2015-10-21 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of gate pressurising antipriming for ultrahigh-water head |
Non-Patent Citations (1)
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| 郭忠武等: "高水头弧型闸门充压伸缩式止水及其系统设计", 《水科学与工程技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127564A (en) * | 2023-10-26 | 2023-11-28 | 华能澜沧江水电股份有限公司 | Pressure maintaining system for gate water seal |
| CN117127564B (en) * | 2023-10-26 | 2024-01-26 | 华能澜沧江水电股份有限公司 | Pressure maintaining system for gate water seal |
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Application publication date: 20151125 |
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