CN202974555U - Anti-blocking apparatus for piezometer tube of water turbine - Google Patents
Anti-blocking apparatus for piezometer tube of water turbine Download PDFInfo
- Publication number
- CN202974555U CN202974555U CN 201220651962 CN201220651962U CN202974555U CN 202974555 U CN202974555 U CN 202974555U CN 201220651962 CN201220651962 CN 201220651962 CN 201220651962 U CN201220651962 U CN 201220651962U CN 202974555 U CN202974555 U CN 202974555U
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- valve
- arm
- piezometric tube
- pressure measurement
- bath
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Abstract
The utility model 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 guiding 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 utility model has the advantages of a simple structure and capacity of preventing blocking of the piezometer tube.
Description
Technical field
The utility model 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 measure by piezometric tube (being generally the stainless-steel tube of φ 32) to calculate.
In Practical Project, the piezometric tube current are very little, particularly after compressor emergency shutdown, the piezometric tube current are static, due to the deposition of silt in water, As time goes on, to cause piezometric tube to stop up, unit can not carry out the cleaning of silt between non-turn(a)round, can only be when unit maintenance, could remove the mud in piezometric tube in the situation of spiral case/draft tube draining; On the other hand, piezometric tube is long and general strike is tortuous, in case sedimentation is more, silt is removed extremely difficult, sometimes pipeline is stopped up fully, and piezometric tube buries fully in concrete, after stopping up fully, piezometric tube can not change, can only discard, the corresponding parameter of measuring of this piezometric tube will can not obtain (unless blowing up concrete rearranges piezometric tube, casting concrete) again forever again in the whole cycle in power plant, can not in time understand the running status of unit, bring hidden danger for the safe and stable operation of unit.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly can prevents that piezometric tube from stopping up, and check in the non-stop-machine situation of unit, the hydraulic turbine piezometric tube preventing clogging up device of maintenance pressure table.
The purpose of this utility model is achieved in that the piezometric tube preventing clogging up device comprises the pressure measurement arm, reaches in described pressure measurement arm installation pressure tester, reaches flushometer, pressure tester comprises tensimeter, and flushometer comprises the bath arm, and the valve installed, shows the stream signalling means on described bath arm.
All right, pressure tester also comprises the valve on the pressure measurement arm, and valve can close or open and lead to manometric current.
All right, flushometer also comprises and shows the stream signalling means, shows that the stream signalling means is arranged on the bath arm.
All right, the piezometric tube preventing clogging up device also comprises controller, and controller can control the unlatching of the valve on valve on the pressure measurement arm, bath arm or cut out.
All right, controller is intelligent controller, and intelligent controller can automatically be controlled the unlatching of the valve on valve on the pressure measurement arm, bath arm or close by setup parameter.
The advantage of this full mold is: use above structure, under measuring state, open the valve on the pressure measurement arm, close the valve on the bath arm, tensimeter can be measured the pressure of water in piezometric tube; Under the desilting state, close the valve on the pressure measurement arm, open the valve on the bath arm, water under high pressure is introduced the 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 the pressure measurement arm, closes the valve on the 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 the pressure measurement arm, close the valve on the bath arm; Opening the valve of bath on arm under the desilting state, close the valve on the pressure measurement arm, the water under high pressure in the arm that prevents from washing by water damages tensimeter and on the impact of measuring accuracy.
Flushometer also comprises and shows the stream signalling means, can clearly show the whether conducting of state of bath arm and piezometric tube, shows under the bath state that the stream signalling means shows cutoff high water after conducting, completes silt and rinses.
The 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 on the pressure measurement arm, bath arm or close by setup parameter, can realize the automatic control under piezometric tube preventing clogging up device different operating state.
Description of drawings
Below in conjunction with drawings and Examples, invention is described further.
Fig. 1 is the utility model structural representation.
Fig. 2 is a kind of embodiment logic diagram of the utility model.
Embodiment
as shown in Figure 1, the 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 the 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 the 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 the 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 3, 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, the stator standard-sized sheet, and intelligent controller is opened the valve 5 on the pressure measurement arm, closes the valve 4 on the bath arm, measures the hydraulic pressure in pressure measurement arm 1; When stator was closed, intelligent controller was closed the valve 5 on the pressure measurement arm, opened the valve 4 on the bath arm, utilized water under high pressure, removed the mud in piezometric tube 10; When needing maintenance tensimeter 2, close the valve 5 on the pressure measurement arm.
Principle of work: by introducing stator off-position signal in intelligent controller, realization is controlled the valve 4 on the valve 5 on the pressure measurement arm, bath arm, under measuring state, close the valve 4 on the bath arm, open the valve 5 on the pressure measurement arm, tensimeter 2 detects the pressure of pressure measurement arm 1 interior water; Under the desilting state, close the valve 5 on the pressure measurement arm, open the valve 4 on the bath arm, bath arm 3 connects high pressure water, and guides it to rinse the interior mud of piezometric tube 10, prevents that silt settling from stopping up piezometric tube 10; Inspecting state is closed the valve 5 on the 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. 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), reaches and at described pressure measurement arm (1), pressure tester, flushometer are installed respectively, described pressure tester comprises tensimeter (2), and described flushometer comprises bath arm (3), reaches at the upper valve (4) of installing 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 the pressure measurement arm, and 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 shows stream signalling means (7), describedly shows that stream signalling means (7) is arranged on bath arm (3).
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), and described controller (8) can control the unlatching of the valve (4) on valve (5) on the pressure measurement arm, bath arm (3) or cut out.
5. a kind of hydraulic turbine piezometric tube preventing clogging up device according to claim 4, it is characterized in that: described controller (8) is intelligent controller, can automatically control the unlatching of the valve (4) on valve (5) on the pressure measurement arm, bath arm or close by setup parameter.
6. a kind of hydraulic turbine piezometric tube preventing clogging up device according to claim 4, is characterized in that: be provided with sensor (9) between the valve (5) on described pressure measurement arm and tensimeter (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651962 CN202974555U (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 |
|---|---|---|---|
| CN 201220651962 CN202974555U (en) | 2012-12-03 | 2012-12-03 | Anti-blocking apparatus for piezometer tube of water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974555U true CN202974555U (en) | 2013-06-05 |
Family
ID=48515614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651962 Expired - Fee Related CN202974555U (en) | 2012-12-03 | 2012-12-03 | Anti-blocking apparatus for piezometer tube of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202974555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852210A (en) * | 2012-12-03 | 2014-06-11 | 中国长江电力股份有限公司 | Anti-blocking apparatus for piezometer tube of water turbine |
| CN114659699A (en) * | 2022-02-14 | 2022-06-24 | 广东清泉建设工程有限公司 | Quick water pressure check out test set of running water |
-
2012
- 2012-12-03 CN CN 201220651962 patent/CN202974555U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852210A (en) * | 2012-12-03 | 2014-06-11 | 中国长江电力股份有限公司 | Anti-blocking apparatus for piezometer tube of water turbine |
| CN114659699A (en) * | 2022-02-14 | 2022-06-24 | 广东清泉建设工程有限公司 | Quick water pressure check out test set of running water |
| CN114659699B (en) * | 2022-02-14 | 2024-01-30 | 广东清泉建设工程有限公司 | Tap water rapid water pressure detection equipment |
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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 |
Granted publication date: 20130605 Termination date: 20171203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |