CN114753958B - Monitoring device for shear pin of guide vane of water turbine - Google Patents
Monitoring device for shear pin of guide vane of water turbine Download PDFInfo
- Publication number
- CN114753958B CN114753958B CN202210203679.9A CN202210203679A CN114753958B CN 114753958 B CN114753958 B CN 114753958B CN 202210203679 A CN202210203679 A CN 202210203679A CN 114753958 B CN114753958 B CN 114753958B
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- Prior art keywords
- shell
- cavity
- arc
- rod
- shaped spring
- Prior art date
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 6
- 238000010008 shearing Methods 0.000 claims abstract description 17
- 238000004146 energy storage Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000006698 induction Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention provides a monitoring device for a shear pin of a guide vane of a water turbine, which comprises a shell, a shear rod and a coil, wherein the shell is arranged on a cylinder body and is internally provided with a cavity, and the shear rod is arranged in the cylinder body. When the shearing rod is sheared, the push rod moves under the action of the energy storage spring to extrude the arc-shaped spring piece, and meanwhile, the push pin on the push rod drives the lever to extrude the arc-shaped spring piece together, so that enough driving force is provided, the arc-shaped spring piece drives the magnet sliding block to move upwards, magnetic force lines are cut, induced current is generated inside the coil, the wireless transmitter is caused to send a shearing signal to an external receiver, the problems that the space is limited, the cable laying is difficult, the cable is easy to wet and break, the installation, the maintenance and the replacement are inconvenient and the like are solved, and the practical and reliable monitoring effect is good.
Description
Technical Field
The invention relates to a hydraulic turbine guide vane shear pin, in particular to a hydraulic turbine guide vane shear pin with an alarm function, and belongs to the technical field of automatic control of hydropower stations.
Background
The signal devices of the existing hydraulic turbine guide vane shear pins are of various types, such as travel switch type, rod type, pneumatic type and the like, and the shear pin shear signals are collected and transmitted in a wired mode. These shear pins have the following problems due to the structure and the like: firstly, the space of a hydraulic turbine chamber of a hydropower station is limited, the cable is difficult to lay, and the installation, maintenance and replacement are inconvenient; secondly, the hydropower station hydraulic turbine room belongs to a high-humidity environment, cables are easy to be decomposed and damaged, the joints of the annunciators and the cable joints are difficult to be waterproof, the joints are easy to be short-circuited, and signals are wrongly reported; thirdly, the instantaneous action information of the annunciator cannot be recorded, the indicator lamp is turned off immediately after the action signal of the annunciator is reset, the specific fault position cannot be displayed, the maintenance difficulty is high, and the time is long. There is therefore a need for improvements in the art.
Disclosure of Invention
The invention provides a monitoring device for a guide vane shear pin of a water turbine, which aims to solve a plurality of problems of the guide vane shear pin of the existing water turbine.
The invention is completed by the following technical scheme: a monitoring device for shear pins of guide vanes of a water turbine comprises a shell provided with a cavity in the shell and a shear rod arranged in the shell, and is characterized in that a wireless transmitter and a coil of an inner iron core connected with the wireless transmitter are arranged in the cavity of the shell, one side of the coil is provided with a magnet sliding block connected with the coil in a matched mode, the magnet sliding block is connected with the shear rod through a transmission mechanism, so that after the shear rod is sheared under the shearing force, the transmission mechanism drives the magnet sliding block to move, magnetic force lines are cut, and induction current is generated in the coil to enable the wireless transmitter to send shear signals.
The transmission mechanism comprises an arc-shaped spring piece, wherein one end of the arc-shaped spring piece is connected with the magnet sliding block, the other end of the arc-shaped spring piece is connected with the iron core, the outward bulge of the arc-shaped spring piece is connected with one end of the push rod, the other end of the push rod penetrates through a corresponding through hole in the shell and is connected with one end of the shearing rod, the other end of the push rod is sleeved with an energy storage spring, one end of the push rod is provided with a push pin, the push pin is matched with the lower part of one end of a lever in the cavity of the shell, the other end of the lever is hinged in the cavity of the shell through a hinge shaft, the upper part of the other end of the lever is matched with the outward bulge of the arc-shaped spring piece, so that after the shearing rod is sheared, the push rod moves under the action of the energy storage spring to squeeze the arc-shaped spring piece, and meanwhile the push pin at one end of the push rod drives the lever to squeeze the arc-shaped spring piece together to provide enough driving force to enable the arc-shaped spring piece to drive the magnet sliding block to move upwards, so as to cut magnetic force lines, and the coil generates induction current to enable the wireless transmitter to send shearing signals to an external receiver.
The shell is a vertical cylinder or a polygonal cylinder, the shape of a cavity in the shell is matched with that of the shell, an upper cover is arranged at the top of the shell, an open slot which is in threaded connection with the cylinder is arranged at the bottom of the shell, and a through hole which is matched with the push rod and communicated with the cavity is arranged at the top of the open slot at the bottom of the shell so as to protect components in the cavity through the shell.
The cylinder body is a vertical cylinder or a polygonal cylinder, the bottom end of the cylinder body is closed, the top end of the cylinder body is connected with a sleeve with an opening at the top and a cavity in the cylinder body, the sleeve is in threaded connection with an opening groove at the bottom of the shell, an axial cavity is arranged in the cylinder body, the shearing rod is arranged in the axial cavity, the lower end of the shearing rod is connected with the bottom end of the axial cavity, and the upper end of the shearing rod is connected with the lower end of the push rod after penetrating through a corresponding through hole in the sleeve at the top end of the cylinder body and extending upwards.
The cylinder and the shear bar are made of nonmetallic materials so that the cylinder and the shear bar can be sheared under the shearing force.
The coil is wound on the iron core, two ends of the coil are connected with corresponding ends of the wireless transmitter arranged in the cavity of the shell, and the magnet sliding block is matched with the sliding rail arranged on the iron core on one side of the coil, so that the magnet sliding block moves along the sliding rail, and then magnetic force lines are cut, the coil generates induction current, and the wireless transmitter is driven to transmit signals through the induction current.
The invention has the following advantages and effects: by adopting the scheme, after the shearing rod is sheared, the push rod can conveniently move under the action of the energy storage spring to extrude the arc-shaped spring piece, and meanwhile, the push pin on the push rod drives the lever to jointly extrude the arc-shaped spring piece, so that enough driving force is provided, the arc-shaped spring piece drives the magnet sliding block to move upwards, thereby cutting magnetic force lines, the coil generates induced current, the wireless transmitter is promoted to send shearing signals to an external receiver, the problems of limited space of a hydraulic turbine chamber of a hydropower station, difficult cable laying, inconvenient installation, maintenance and replacement are thoroughly solved, the problems of cable decomposition damage and difficult cable joint waterproof caused by overhigh humidity of the hydraulic turbine chamber of the hydropower station are avoided, the problems of incapability of displaying the defect of a specific fault position, long time consumption and the like are solved through the use of the wireless transmitter, and the hydraulic turbine guide vane shearing pin monitoring device is practical, reliable, and has good monitoring precision and good effect.
Drawings
FIG. 1 is a block diagram of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention provides a hydraulic turbine guide vane shear pin monitoring device, which comprises a shell 10 which is arranged on a cylinder 19 and is internally provided with a cavity, wherein a shear rod 1 is arranged in the cylinder 19, and the device comprises the following components: a wireless transmitter 11 and a coil 8 of an internal iron core 7 connected with the wireless transmitter are arranged in a cavity of the shell 10, a magnet sliding block 5 connected with the coil 8 in a matching way is arranged on the left side of the coil 8, and the magnet sliding block 5 is connected with the shear bar 1 through a transmission mechanism;
the transmission mechanism comprises an arc-shaped spring piece 12, one end of which is connected with the magnet sliding block 5, the other end of which is connected with the iron core 7 and protrudes downwards, the downward protrusion of the arc-shaped spring piece 12 is connected with the upper end of a push rod 14, the lower end of the push rod 14 passes through a through hole 15 at the bottom of the shell 10 and is connected with the upper end of the shear rod 1, an energy storage spring 2 is sleeved at the lower end of the push rod 14, a push pin 13 is arranged at one side of the upper end of the push rod 14 and is matched with the lower part of the inner end of a lever 4 in a cavity of the shell 10, the outer end of the lever 4 is hinged at the bottom of the cavity of the shell 10 through a hinge shaft 3, the upper part of the inner end of the lever 4 is matched with the downward protrusion of the arc-shaped spring piece 12, so that after the shear rod 1 is sheared, the push rod 14 moves upwards under the action of the energy storage spring 2 to squeeze the arc-shaped spring piece 12, and meanwhile, the push pin 13 at one side of the upper end of the push rod 14 drives the lever 4 to squeeze the arc-shaped spring piece 12 together to provide enough driving force to drive the arc-shaped spring piece 12 to drive the magnet sliding block 5 to move upwards, thereby cutting magnetic force lines, the coil generates induction current, and a wireless transmitter is promoted to send shear signals to an external receiver;
the shell 10 is a vertical cylinder, the shape of a cavity in the shell is matched with that of the shell 10, the top of the shell 10 is provided with an upper cover 9, the bottom of the shell is provided with an open slot which is in threaded connection with the cylinder 19, and the top of the open slot is provided with a through hole 15 which is matched with the push rod 14 and is communicated with the cavity, so that the components in the cavity are protected through the shell 10;
the cylinder 19 is a vertical cylinder, the bottom end of the cylinder is closed, the top end of the cylinder is connected with a sleeve 16 with an opening at the top and a cavity in the cylinder, the sleeve 16 is in threaded connection with an opening groove at the bottom of the shell 10, an axial cavity 18 is arranged in the cylinder 19, the cutting rod 1 is arranged in the axial cavity 18, the lower end of the cutting rod 1 is connected with the bottom end of the axial cavity 18, and the upper end of the cutting rod passes through a corresponding through hole 17 on the sleeve 16 at the top end of the cylinder 19, extends upwards and is then connected with the lower end of the push rod 14; the cylinder 19 and the shear rod 1 are made of nonmetallic materials so that the cylinder 19 and the shear rod 1 can be sheared under the shearing force;
the coil 8 is wound on the iron core 7, two ends of the coil 8 are connected with corresponding ends of the wireless transmitter 11 arranged in the cavity of the shell 10, and the magnet sliding block 5 is matched with the sliding rail 6 arranged on the left iron core 7 of the coil 8, so that the magnet sliding block 5 moves along the sliding rail 6 to cut magnetic force lines, the coil 8 generates induction current, and the wireless transmitter 11 is driven to transmit signals through the induction current.
Claims (2)
1. The utility model provides a hydraulic turbine stator shear pin monitoring devices, includes the casing that sets up cavity in it on locating the barrel, sets up the shear bar in the barrel, and characterized in that the casing cavity is equipped with wireless transmitter and the coil of the built-in iron core that links to each other with it, and coil one side is equipped with the magnet slider that matches with it, and the magnet slider is connected with the shear bar through drive mechanism;
the transmission mechanism comprises an arc-shaped spring piece, wherein one end of the arc-shaped spring piece is connected with the magnet sliding block, the other end of the arc-shaped spring piece is connected with the iron core, the outward bulge of the arc-shaped spring piece is connected with one end of the push rod, the other end of the push rod penetrates through a corresponding through hole in the shell and is connected with one end of the shear rod, the other end of the push rod is sleeved with an energy storage spring, one end of the push rod is provided with a push pin, the push pin is matched and connected with the lower part of one end of a lever in the cavity of the shell, the other end of the lever is hinged in the cavity of the shell through a hinge shaft, and the upper part of the other end of the lever is matched and connected with the outward bulge of the arc-shaped spring piece;
the shell is a vertical cylinder or a polygonal cylinder, the shape of a cavity in the shell is matched with that of the shell, an upper cover is arranged at the top of the shell, an open slot which is in threaded connection with the cylinder is arranged at the bottom of the shell, and a through hole which is matched with the push rod and communicated with the cavity is arranged at the top of the open slot at the bottom of the shell;
the cylinder body is a vertical cylinder or a polygonal cylinder, the bottom end of the cylinder body is closed, the top end of the cylinder body is connected with a sleeve with an opening at the top and a cavity in the cylinder body, the sleeve is in threaded connection with an opening groove at the bottom of the shell, an axial cavity is arranged in the cylinder body, the shearing rod is arranged in the axial cavity, the lower end of the shearing rod is connected with the bottom end of the axial cavity, and the upper end of the shearing rod is connected with the lower end of the push rod after penetrating through a corresponding through hole in the sleeve at the top end of the cylinder body and extending upwards.
2. The hydraulic turbine vane shear pin monitoring device of claim 1, wherein the coil is wound on the iron core, two ends of the coil are connected with corresponding ends of a wireless transmitter arranged in the cavity of the shell, and the magnet slider is matched and connected with a slide rail arranged on the iron core at one side of the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210203679.9A CN114753958B (en) | 2022-03-03 | 2022-03-03 | Monitoring device for shear pin of guide vane of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210203679.9A CN114753958B (en) | 2022-03-03 | 2022-03-03 | Monitoring device for shear pin of guide vane of water turbine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114753958A CN114753958A (en) | 2022-07-15 |
| CN114753958B true CN114753958B (en) | 2023-11-17 |
Family
ID=82325290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210203679.9A Active CN114753958B (en) | 2022-03-03 | 2022-03-03 | Monitoring device for shear pin of guide vane of water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114753958B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074796A (en) * | 2009-09-29 | 2011-04-14 | Toto Ltd | Faucet hydroelectric generator |
| CN203114507U (en) * | 2013-03-07 | 2013-08-07 | 重庆云河水电股份有限公司 | Annunciator of shearing pin of water turbine |
| CN103707045A (en) * | 2013-12-03 | 2014-04-09 | 国家电网公司 | Device and method for dismantling shear pins of jacks |
| CN105308659A (en) * | 2013-07-16 | 2016-02-03 | Kfv卡尔弗利特有限责任两合公司 | Device for monitoring the bolt position of a locking device |
| CN107152368A (en) * | 2017-07-13 | 2017-09-12 | 国家电网公司 | A kind of guide vanes of water turbine break pin cuts signal detection system |
| CN206945040U (en) * | 2017-06-01 | 2018-01-30 | 哈尔滨电机厂有限责任公司 | A kind of hydraulic turbine break pin state on_line monitoring element |
| CN108831104A (en) * | 2018-08-22 | 2018-11-16 | 国网黑龙江省电力有限公司牡丹江水力发电总厂 | A kind of gravity triggering break pin signal measurement alarm element |
| CN109931203A (en) * | 2019-04-24 | 2019-06-25 | 南京峡谷能源科技有限公司 | A kind of hydraulic turbine of cooling tower of the permanent magnet powered compensation device of band |
| CN214464630U (en) * | 2021-03-04 | 2021-10-22 | 西安江河电站技术开发有限责任公司 | Shear pin signal monitoring device |
| CN218563787U (en) * | 2022-03-03 | 2023-03-03 | 华能澜沧江水电股份有限公司 | Hydraulic turbine stator shear pin monitoring devices |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160084218A1 (en) * | 2011-05-16 | 2016-03-24 | Henry Obermeyer | Systems and Methods for Hydromotive Machines |
| EP3170158A4 (en) * | 2014-07-16 | 2018-08-01 | InVue Security Products, Inc. | Security system with kill switch functionality |
-
2022
- 2022-03-03 CN CN202210203679.9A patent/CN114753958B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011074796A (en) * | 2009-09-29 | 2011-04-14 | Toto Ltd | Faucet hydroelectric generator |
| CN203114507U (en) * | 2013-03-07 | 2013-08-07 | 重庆云河水电股份有限公司 | Annunciator of shearing pin of water turbine |
| CN105308659A (en) * | 2013-07-16 | 2016-02-03 | Kfv卡尔弗利特有限责任两合公司 | Device for monitoring the bolt position of a locking device |
| CN103707045A (en) * | 2013-12-03 | 2014-04-09 | 国家电网公司 | Device and method for dismantling shear pins of jacks |
| CN206945040U (en) * | 2017-06-01 | 2018-01-30 | 哈尔滨电机厂有限责任公司 | A kind of hydraulic turbine break pin state on_line monitoring element |
| CN107152368A (en) * | 2017-07-13 | 2017-09-12 | 国家电网公司 | A kind of guide vanes of water turbine break pin cuts signal detection system |
| CN108831104A (en) * | 2018-08-22 | 2018-11-16 | 国网黑龙江省电力有限公司牡丹江水力发电总厂 | A kind of gravity triggering break pin signal measurement alarm element |
| CN109931203A (en) * | 2019-04-24 | 2019-06-25 | 南京峡谷能源科技有限公司 | A kind of hydraulic turbine of cooling tower of the permanent magnet powered compensation device of band |
| CN214464630U (en) * | 2021-03-04 | 2021-10-22 | 西安江河电站技术开发有限责任公司 | Shear pin signal monitoring device |
| CN218563787U (en) * | 2022-03-03 | 2023-03-03 | 华能澜沧江水电股份有限公司 | Hydraulic turbine stator shear pin monitoring devices |
Non-Patent Citations (1)
| Title |
|---|
| 远程电站活动导叶破断剪断销的检测;张利民;;东方电机(第01期);第76-78页 * |
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| Publication number | Publication date |
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| CN114753958A (en) | 2022-07-15 |
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