CN218563787U - Hydraulic turbine stator shear pin monitoring devices - Google Patents
Hydraulic turbine stator shear pin monitoring devices Download PDFInfo
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- CN218563787U CN218563787U CN202220450170.XU CN202220450170U CN218563787U CN 218563787 U CN218563787 U CN 218563787U CN 202220450170 U CN202220450170 U CN 202220450170U CN 218563787 U CN218563787 U CN 218563787U
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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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Abstract
The utility model provides a hydraulic turbine stator pin monitoring devices that cuts, establish the casing of cavity in locating it on the barrel, set up the pole that cuts in the barrel, be equipped with wireless transmitter and the built-in iron core's that links to each other coil in its characterized in that casing cavity, coil one side is equipped with the magnet slider that connects with it mutually, and the magnet slider is connected with the pole that cuts through drive mechanism. When the cutting rod is cut, the push rod moves under the action of the energy storage spring to extrude the arc-shaped spring piece, 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 to enable the arc-shaped spring piece to drive the magnet slider to move upwards, and therefore magnetic lines of force are cut, induction current is generated inside the coil, a wireless transmitter is enabled to send a cutting signal to an external receiver, the problems that the space is limited, the cable is difficult to lay, the cable is prone to being affected with damp and damaged, and the installation, maintenance, replacement and the like are inconvenient are solved.
Description
Technical Field
The utility model relates to a hydraulic turbine stator pin of cuting, especially a hydraulic turbine stator pin of cuting of taking alarming function belongs to hydropower station automation control technical field.
Background
The existing water turbine guide vane shear pin annunciators are various, and have a travel switch type, a bar type, a pneumatic type and the like, and the acquisition and transmission of shear pin shear signals are all performed 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 hydroelectric power station water turbine chamber belongs to a high-humidity environment, a cable is easy to corrode and damage, and the joints of the annunciator and the cable joint are difficult to prevent water, so that the short circuit of the joints is easy to cause, and the signal is mistakenly reported; thirdly, the instantaneous action information of the annunciator cannot be recorded, the indicator lamp is immediately turned off after the action signal of the annunciator is reset, and the specific fault position cannot be displayed, so that the maintenance difficulty is high, and the time consumption is long. There is therefore a need for improvements in the prior art.
Disclosure of Invention
For solving a great deal of problem that current hydraulic turbine stator shear pin exists, the utility model provides a hydraulic turbine stator shear pin monitoring devices.
The utility model discloses a following technical scheme accomplishes: a monitoring device for a shear pin of a guide vane of a water turbine comprises a shell and a shear rod, wherein the shell is arranged on a cylinder body, a cavity is formed in the shell, the shear rod is arranged in the cylinder body, a wireless transmitter and a coil of a built-in iron core are arranged in the cavity of the shell, the coil is connected with a coil, a magnet sliding block is matched and connected with the coil, and 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 action, the magnet sliding block is driven to move through the transmission mechanism, magnetic lines of force are cut, and induced current is generated in the coil to enable the wireless transmitter to send a shearing signal.
The transmission mechanism comprises an arc-shaped spring piece, 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 and protrudes outwards, the outward protrusion 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 cutting rod, an energy storage spring is sleeved at the other end of the push rod, a push pin is arranged at one end of the push rod and is matched and connected with the lower portion 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 portion of the other end of the lever is matched and connected with the outward protrusion of the arc-shaped spring piece, so that after the cutting rod is cut, the push rod moves under the action of the energy storage spring to extrude the arc-shaped spring piece, meanwhile, the push pin at one end of the push rod drives the lever to extrude the arc-shaped spring piece together, so that the arc-shaped spring piece drives the magnet sliding block to move upwards, thereby cutting magnetic force lines are cut, the induced current is generated in the coil, and the wireless transmitter sends a cutting signal to an external receiver.
The shell is designed to be a vertical cylinder or a polygonal cylinder, the shape of a cavity in the shell is matched with that of the shell, the top of the shell is provided with an upper cover, the bottom of the shell is provided with an open slot which is in threaded connection with the cylinder, and the top of the open slot at the bottom of the shell is provided with a through hole which is matched and connected with the push rod and communicated with the cavity, so that parts in the cavity are protected through the shell.
The barrel is a vertical cylinder or a polygonal cylinder, the bottom end of the barrel is closed, the top end of the barrel is connected with a sleeve, the top of the sleeve is provided with an opening, and the sleeve is internally provided with a cavity.
The cylinder and the shearing rod are made of non-metal parts so as to be capable of shearing under the action of shearing force.
The coil is wound on the iron core, two ends of the coil are connected with the corresponding ends of the wireless transmitter arranged in the cavity of the shell, and the magnet sliding block is matched and connected with the sliding rail arranged on the iron core on one side of the coil, so that the magnet sliding block can move along the sliding rail to cut magnetic lines of force, the coil generates induced current, and the wireless transmitter is enabled to transmit signals through the induced current.
The utility model has the advantages of the following and the effect: by adopting the scheme, after the cutting rod is cut, the push rod can be conveniently moved under the action of the energy storage spring to extrude the arc-shaped spring piece, meanwhile, the promotion on the push rod drives the lever to extrude the arc-shaped spring piece together, so that enough driving force is provided to enable the arc-shaped spring piece to drive the magnet slider to move upwards, thereby cutting magnetic lines of force, enabling the coil to generate induced current and enabling the wireless transmitter to send a cutting signal to an external receiver, thoroughly solving the problems of limited space of a hydraulic turbine chamber of a hydropower station, difficulty in cable laying, inconvenience in installation, maintenance and replacement, avoiding the problems of cable corruption damage and difficult waterproof cable joints caused by overhigh humidity of the hydraulic turbine chamber of the hydropower station, solving the problems of incapability of displaying specific fault positions, long time and the like by using the wireless transmitter, and the monitoring device is not only practical and reliable, but also has good monitoring precision and effect and is an ideal hydraulic turbine cutting pin monitoring device.
Drawings
Fig. 1 is a structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The utility model provides a hydraulic turbine stator pin monitoring devices that cuts establishes the casing 10 of cavity in it on locating barrel 19, has in this barrel 19 to cut pole 1, wherein: a wireless transmitter 11 and a coil 8 of a built-in iron core 7 connected with the wireless transmitter are arranged in the cavity of the shell 10, a magnet sliding block 5 matched with the coil 8 is arranged on the left side of the coil 8, and the magnet sliding block 5 is connected with the shearing rod 1 through a transmission mechanism;
the transmission mechanism comprises an arc-shaped spring leaf 12, one end of the arc-shaped spring leaf 12 is connected with the magnet sliding block 5, the other end of the arc-shaped spring leaf is connected with the iron core 7 and protrudes downwards, the downward protrusion of the arc-shaped spring leaf 12 is connected with the upper end of a push rod 14, the lower end of the push rod 14 penetrates through a through hole 15 in the bottom of the shell 10 to be connected with the upper end of the shearing rod 1, an energy storage spring 2 is sleeved at the lower end of the push rod 14, a push pin 13 is arranged on one side of the upper end of the push rod 14, the push pin 13 is matched and connected with the lower portion of the inner end of a lever 4 in the cavity of the shell 10, the outer end of the lever 4 is hinged to the bottom of the cavity of the shell 10 through a hinge shaft 3, and the upper portion of the inner end of the lever 4 is matched and connected with the downward protrusion of the arc-shaped spring leaf 12 in a matching mode, so that after the shearing rod 1 is sheared, the push rod 14 moves upwards under the action of the energy storage spring 2 to extrude the arc-shaped spring leaf 12, meanwhile, the push pin 13 on one side of the upper end of the push rod 14 drives the lever 4 to extrude the arc-shaped spring leaf 12 together to provide enough driving force to drive the arc-shaped spring leaf 12 to drive the magnet sliding block 5 to move upwards, thereby cutting magnetic line, and generate induced current in the coil, and enable the coil to enable the radio transmitter to send out a shearing signal to the 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 screwed with the cylinder 19, and the top of the open slot is provided with a through hole 15 which is matched and connected with the push rod 14 and is communicated with the cavity so as to protect components in the cavity 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, the top of the sleeve is provided with an opening, the sleeve 16 is internally provided with a cavity, 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 shearing rod 1 is arranged in the axial cavity 18, the lower end of the shearing rod 1 is connected with the bottom end of the axial cavity 18, and the upper end of the shearing rod passes through a corresponding through hole 17 on the sleeve 16 at the top end of the cylinder 19 and extends upwards to be connected with the lower end of the push rod 14; the cylinder 19 and the shearing rod 1 are made of non-metal parts so that the cylinder 19 and the shearing 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 slider 5 is matched and connected with the slide rail 6 arranged on the iron core 7 on the left side of the coil 8, so that the magnet slider 5 moves along the slide rail 6 to cut magnetic lines of force, the coil 8 generates induction current, and the wireless transmitter 11 is enabled to transmit signals through the induction current.
Claims (3)
1. A hydraulic turbine stator shear pin monitoring device comprises a shell arranged on a cylinder body and internally provided with a cavity, and a shear rod arranged in the cylinder body, and is characterized in that a wireless transmitter and a coil of an internally-arranged iron core connected with the wireless transmitter are arranged in the cavity of the shell, a magnet sliding block matched and connected with the coil is arranged on one side of the coil, and the magnet sliding block is connected with the shear rod through a transmission mechanism;
the transmission mechanism comprises an arc-shaped spring piece, one end of the arc-shaped spring piece is connected with the magnetic body sliding block, the other end of the arc-shaped spring piece is connected with the iron core and protrudes outwards, the outward protrusion of the arc-shaped spring piece is connected with one end of a push rod, the other end of the push rod penetrates through a corresponding through hole in the shell to be connected with one end of a shearing rod, an energy storage spring is sleeved at the other end of the push rod, a push pin is arranged at one end of the push rod and 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 hinged shaft, and the upper part of the other end of the lever is matched and connected with the outward protrusion of the arc-shaped spring piece;
the coil is wound on the iron core, two ends of the coil are connected with the corresponding ends of the wireless transmitter arranged in the cavity of the shell, and the magnet sliding block is matched and connected with the sliding rail arranged on the iron core on one side of the coil.
2. The monitoring device for the shear pin of the guide vane of the water turbine as claimed in claim 1, wherein the casing is a vertical cylinder or a polygonal cylinder, the shape of a cavity in the casing is adapted to the shape of the casing, the top of the casing is provided with an upper cover, the bottom of the casing is provided with an open slot screwed with the cylinder, and the top of the open slot at the bottom of the casing is provided with a through hole which is matched and connected with the push rod and communicated with the cavity.
3. The monitoring device for the shear pin of the guide vane of the water turbine as claimed in claim 1, wherein the cylinder is a vertical cylinder or a polygonal cylinder, the bottom end of the cylinder is closed, the top end of the cylinder is connected with a sleeve with an opening at the top and a cavity inside, the sleeve is in threaded connection with the opening groove at the bottom of the casing, an axial cavity is arranged in the cylinder, the shear rod is arranged in the axial cavity, the lower end of the shear rod is connected with the bottom end of the axial cavity, and the upper end of the shear rod penetrates through a corresponding through hole in the sleeve at the top end of the cylinder and extends upwards to be connected with the lower end of the push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220450170.XU CN218563787U (en) | 2022-03-03 | 2022-03-03 | Hydraulic turbine stator shear pin monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220450170.XU CN218563787U (en) | 2022-03-03 | 2022-03-03 | Hydraulic turbine stator shear pin monitoring devices |
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| Publication Number | Publication Date |
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| CN218563787U true CN218563787U (en) | 2023-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220450170.XU Active CN218563787U (en) | 2022-03-03 | 2022-03-03 | Hydraulic turbine stator shear pin monitoring devices |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753958A (en) * | 2022-03-03 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Hydraulic turbine stator shear pin monitoring devices |
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2022
- 2022-03-03 CN CN202220450170.XU patent/CN218563787U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753958A (en) * | 2022-03-03 | 2022-07-15 | 华能澜沧江水电股份有限公司 | Hydraulic turbine stator shear pin monitoring devices |
| CN114753958B (en) * | 2022-03-03 | 2023-11-17 | 华能澜沧江水电股份有限公司 | Monitoring device for shear pin of guide vane of water turbine |
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