CN103852210A - Anti-blocking apparatus for piezometer tube of water turbine - Google Patents
Anti-blocking apparatus for piezometer tube of water turbine Download PDFInfo
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- CN103852210A CN103852210A CN201210505680.3A CN201210505680A CN103852210A CN 103852210 A CN103852210 A CN 103852210A CN 201210505680 A CN201210505680 A CN 201210505680A CN 103852210 A CN103852210 A CN 103852210A
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Abstract
The invention provides an anti-blocking apparatus for a piezometer tube. The anti-blocking apparatus comprises a piezometer tube, a branch piezometer tube, a pressure measuring device and a flushing device, wherein the pressure measuring device and the flushing device are respectively arranged on the branch piezometer tube, the pressure measuring device comprises a pressure gage, the flushing device comprises a branch flushing pipe and a valve installed on the branch flushing pipe. In a measuring state, the valve on the branch flushing pipe is closed, and the pressure gage can measure pressure of water in the branch piezometer tube; in a dredging state, the valve on the branch flushing pipe is opened, and high pressure water is introduced into the branch flushing pipe and flushes the piezometer tube under the guidance of the branch flushing pipe so as to allow slush in the piezometer tube to be flushed out to prevent deposition of the slush. The anti-blocking apparatus provided by the invention has the advantages of simple structure and capacity of preventing blocking of the piezometer tube.
Description
technical field
Invention relates to hydraulic turbine piezometric tube, relates in particular to hydraulic turbine piezometric tube preventing clogging up device.
Background technology
The parameter of the hydraulic turbine, comprises that the stability parameter-pressure fluctuation of net head (spiral case inlet and draft tube top hole pressure participate in calculating), unit flow (spiral case differential pressure method) and the unit of unit is all to be measured and calculated by piezometric tube (being generally the stainless-steel tube of φ 32).
In Practical Project, piezometric tube current are very little, particularly after compressor emergency shutdown, piezometric tube current are static, due to the deposition of silt in water, As time goes on, to cause piezometric tube to stop up, between non-turn(a)round of unit, can not carry out the cleaning of silt, can only be in the time of unit maintenance, in the situation of spiral case/draft tube draining, could remove the mud in piezometric tube; On the other hand, piezometric tube is long and general strike is tortuous, once sedimentation is more, silt is removed extremely difficult, sometimes pipeline is stopped up completely, and piezometric tube buries completely in concrete, after stopping up completely, piezometric tube can not change, can only discard, the corresponding parameter of measuring of this piezometric tube will forever can not again obtain (unless blowing up concrete rearranges piezometric tube, casting concrete again) within the whole cycle of power plant, can not understand in time the running status of unit, bring hidden danger to the safe and stable operation of unit.
summary of the invention
The object of this invention is to provide one and can prevent that piezometric tube from stopping up, and in the non-stop-machine situation of unit, check, the hydraulic turbine piezometric tube preventing clogging up device of maintenance pressure table.
The object of the present invention is achieved like this: piezometric tube preventing clogging up device comprises pressure measurement arm and at described pressure measurement arm, pressure tester and flushometer is installed, pressure tester comprises tensimeter, and flushometer comprises bath arm and the valve of installing on described bath arm, shows stream signalling means.
All right, pressure tester also comprises the valve on pressure measurement arm, and valve can close or open and lead to manometric current.
All right, flushometer also comprises and shows stream signalling means, shows that stream signalling means is arranged on bath arm.
All right, piezometric tube preventing clogging up device also comprises controller, and controller can control the unlatching of the valve on valve, the bath arm on pressure measurement arm or cut out.
All right, controller is intelligent controller, and intelligent controller can automatically be controlled the unlatching of the valve on valve, the bath arm on pressure measurement arm or be closed by setup parameter.
The advantage of this full mold is: use above structure, under measuring state, open the valve on pressure measurement arm, close the valve on bath arm, tensimeter can be measured the pressure of water in piezometric tube; Under desilting state, close the valve on pressure measurement arm, open the valve on bath arm, water under high pressure is introduced to bath arm, water under high pressure rinses piezometric tube under the guiding of bath arm, and the muddy water in piezometric tube is rushed out, and prevents its deposition, realizes anti-blocking.
Pressure tester also comprises the valve on pressure measurement arm, closes the valve on pressure measurement arm under inspecting state, can, in the non-stop-machine situation of unit, realize tensimeter is changed; Under measuring state, open the valve on pressure measurement arm, close the valve on bath arm; Under desilting state, open the valve of bath on arm, close the valve on pressure measurement arm, the water under high pressure that prevents from washing by water in arm damages tensimeter and impact on measuring accuracy.
Flushometer also comprises and shows stream signalling means, can clearly show the whether conducting of state of bath arm and piezometric tube, shows that stream signalling means shows cutoff high water after conducting, completes silt and rinses under bath state.
Piezometric tube preventing clogging up device also comprises controller, can realize piezometric tube preventing clogging up device different operating state by the switching of closing/open to valve sets.
Controller is intelligent controller, and intelligent controller can automatically be controlled the unlatching of the valve on valve, the bath arm on pressure measurement arm or be closed by setup parameter, can realize the automatic control under piezometric tube preventing clogging up device different operating state.
Brief description of the drawings
Below in conjunction with drawings and Examples, invention is described further.
Fig. 1 is structural representation of the present invention.
Fig. 2 is an embodiment of the present invention logic diagram.
Embodiment
As shown in Figure 1, piezometric tube preventing clogging up device comprises aqueduct 10, pressure measurement arm 1, controller 8, and at piezometric tube 10, threeway 9 is installed respectively, pressure tester, flushometer, pressure tester comprises tensimeter 2, valve 5 on pressure measurement arm, flushometer comprises bath arm 3, show stream signalling means 7, and the valve 4 of installing on bath arm 3, the current that lead to tensimeter 2 can be closed or be opened to valve 5 on pressure measurement arm, controller 8 is intelligent controller, intelligent controller can be single-chip microcomputer or PLC, intelligent controller can be controlled the valve 5 on pressure measurement arm automatically, the unlatching of the valve 4 of bath on arm or close, show that stream signalling means 7 is arranged on bath arm 4, piezometric tube 10 passes from concrete 6.
As shown in Figure 2, controller 8 is intelligent controller, and intelligent controller is arranged on guide vanes of water turbine, stator standard-sized sheet, and intelligent controller is opened the valve 5 on pressure measurement arm, closes the valve 4 on bath arm, measures the hydraulic pressure in pressure measurement arm 1; When stator is closed, intelligent controller is closed the valve 5 on pressure measurement arm, opens the valve 4 on bath arm, utilizes water under high pressure, removes the mud in piezometric tube 10; When tensimeter 2 need to be overhauled, close the valve 5 on pressure measurement arm.
Principle of work: by introducing stator off-position signal in intelligent controller, realize the valve 4 on the valve 5 on pressure measurement arm, bath arm is controlled, under measuring state, close the valve 4 on bath arm, open the valve 5 on pressure measurement arm, tensimeter 2 detects the pressure of pressure measurement arm 1 interior water; Under desilting state, close the valve 5 on pressure measurement arm, open the valve 4 on bath arm, bath arm 3 connects high pressure water, and guides it to rinse the mud in piezometric tube 10, prevents that silt settling from stopping up piezometric tube 10; Inspecting state, closes the valve 5 on pressure measurement arm, can be in the non-shutdown situation of water wheels unit, realize to tensimeter 2 running repairs or replacing.
Claims (6)
1. a hydraulic turbine piezometric tube preventing clogging up device, it is characterized in that: described piezometric tube preventing clogging up device comprises pressure measurement arm (1) and at described pressure measurement arm (1), pressure tester, flushometer is installed respectively, described dress pressure tester comprises tensimeter (2), and described flushometer comprises bath arm (3) and the valve (4) in the upper installation of described bath arm (3).
2. a kind of hydraulic turbine piezometric tube preventing clogging up device according to claim 1, it is characterized in that: described pressure tester also comprises the valve (5) on pressure measurement arm, the current that lead to tensimeter (2) can be closed or be opened to the valve (5) on described pressure measurement arm.
3. a kind of hydraulic turbine piezometric tube preventing clogging up device according to claim 1, is characterized in that: described flushometer also comprises and show stream signalling means (7), described in show that stream signalling means (7) is arranged in bath arm (4).
4. a kind of hydraulic turbine piezometric tube preventing clogging up device according to claim 2, it is characterized in that: described piezometric tube preventing clogging up device also comprises controller (8), described controller (8) can control the unlatching of the valve (4) on valve (5), the bath arm on pressure measurement arm or cut out.
5. a kind of hydraulic turbine piezometric tube preventing clogging up device according to claim 2, it is characterized in that: described controller (8) is intelligent controller, can automatically control the unlatching of the valve (4) on valve (5), the bath arm on pressure measurement arm or close by setup parameter.
6. a kind of hydraulic turbine piezometric tube preventing clogging up device according to claim 2, is characterized in that: between the valve (5) on described pressure measurement arm and tensimeter (2), be provided with sensor (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505680.3A CN103852210A (en) | 2012-12-03 | 2012-12-03 | Anti-blocking apparatus for piezometer tube of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210505680.3A CN103852210A (en) | 2012-12-03 | 2012-12-03 | Anti-blocking apparatus for piezometer tube of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103852210A true CN103852210A (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210505680.3A Pending CN103852210A (en) | 2012-12-03 | 2012-12-03 | Anti-blocking apparatus for piezometer tube of water turbine |
Country Status (1)
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| CN (1) | CN103852210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807802A (en) * | 2014-12-04 | 2016-07-27 | 熊达煜 | Automatic-control dam water pressure detecting device and monitoring method |
| CN113898426A (en) * | 2021-09-28 | 2022-01-07 | 广东韶钢松山股份有限公司 | Hydrophobic flash tank |
Citations (6)
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| CN2077123U (en) * | 1990-10-10 | 1991-05-15 | 煤炭科学研究总院唐山分院 | Pipe thick liquid-delivery pressure-surveying device |
| CN1252523A (en) * | 1999-12-06 | 2000-05-10 | 谢心良 | Choke preventing method and device for pressure measurement |
| CN2465165Y (en) * | 2001-02-26 | 2001-12-12 | 电站锅炉煤清洁燃烧国家工程研究中心 | Blocking-proof static pressure measurer |
| CN2541832Y (en) * | 2002-04-30 | 2003-03-26 | 张店钢铁总厂 | Hot gas manograph for gas producer |
| CN200982904Y (en) * | 2006-11-27 | 2007-11-28 | 肖立新 | Automatic blockage prevention and reverse blow device for pressure measurement |
| CN202974555U (en) * | 2012-12-03 | 2013-06-05 | 中国长江电力股份有限公司 | Anti-blocking apparatus for piezometer tube of water turbine |
-
2012
- 2012-12-03 CN CN201210505680.3A patent/CN103852210A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2077123U (en) * | 1990-10-10 | 1991-05-15 | 煤炭科学研究总院唐山分院 | Pipe thick liquid-delivery pressure-surveying device |
| CN1252523A (en) * | 1999-12-06 | 2000-05-10 | 谢心良 | Choke preventing method and device for pressure measurement |
| CN2465165Y (en) * | 2001-02-26 | 2001-12-12 | 电站锅炉煤清洁燃烧国家工程研究中心 | Blocking-proof static pressure measurer |
| CN2541832Y (en) * | 2002-04-30 | 2003-03-26 | 张店钢铁总厂 | Hot gas manograph for gas producer |
| CN200982904Y (en) * | 2006-11-27 | 2007-11-28 | 肖立新 | Automatic blockage prevention and reverse blow device for pressure measurement |
| CN202974555U (en) * | 2012-12-03 | 2013-06-05 | 中国长江电力股份有限公司 | Anti-blocking apparatus for piezometer tube of water turbine |
Non-Patent Citations (1)
| Title |
|---|
| 孙飞: "浅谈测压管的淤积清理", 《人民长江》, vol. 42, 31 October 2011 (2011-10-31), pages 91 - 92 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807802A (en) * | 2014-12-04 | 2016-07-27 | 熊达煜 | Automatic-control dam water pressure detecting device and monitoring method |
| CN105973526A (en) * | 2014-12-04 | 2016-09-28 | 熊达煜 | Water pressure detection device for automatically control dam and monitoring method thereof |
| CN105973526B (en) * | 2014-12-04 | 2018-11-13 | 长乐智睿恒创节能科技有限责任公司 | One kind automatically controlling dam hydraulic pressure force checking device and its monitoring method |
| CN105807802B (en) * | 2014-12-04 | 2018-11-20 | 东阳市天杨建筑工程设计有限公司 | A kind of automatic control dam hydraulic pressure force checking device and its monitoring method |
| CN113898426A (en) * | 2021-09-28 | 2022-01-07 | 广东韶钢松山股份有限公司 | Hydrophobic flash tank |
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Application publication date: 20140611 |