CN114518469B - Device and method for monitoring parameters of air duct of mining working face - Google Patents
Device and method for monitoring parameters of air duct of mining working face Download PDFInfo
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- CN114518469B CN114518469B CN202210156249.6A CN202210156249A CN114518469B CN 114518469 B CN114518469 B CN 114518469B CN 202210156249 A CN202210156249 A CN 202210156249A CN 114518469 B CN114518469 B CN 114518469B
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- 238000005065 mining Methods 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000012806 monitoring device Methods 0.000 claims abstract description 14
- 235000012431 wafers Nutrition 0.000 claims description 41
- 238000003754 machining Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Aviation & Aerospace Engineering (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The invention belongs to the technical field of coal exploitation and coal mine safety, and discloses a mining working face wind barrel parameter monitoring device which comprises a wind barrel structure and an ultrasonic wind speed sensor, wherein a self-generating component for supplying power to the ultrasonic wind speed sensor is arranged outside the wind barrel structure through a supporting rod, the self-generating component consists of a spring, a pressing block, a piezoelectric wafer, a fixed wafer and a blunt body, the fixed wafer is arranged in the blunt body and is connected with the supporting rod, the fixed wafer is provided with the piezoelectric wafer, the piezoelectric wafer is provided with the pressing block, the spring is arranged between the pressing block and the blunt body, and the ultrasonic wind speed sensor is connected with the piezoelectric wafer through a lead. The invention solves the power consumption requirement of the wind tunnel parameter monitoring of the mining working face by a self-generating mode while accurately measuring the wind speed and the wind direction of the fluid in the wind tunnel, gets rid of the constraint of cables, and provides a new scheme for monitoring the wind supply system of the working face. The invention also provides a method for monitoring the parameters of the air duct of the mining working face.
Description
Technical Field
The invention belongs to the technical field of coal exploitation and coal mine safety, and particularly relates to a device and a method for monitoring parameters of an air duct of a mining working face.
Background
Coal is used as the most basic energy and industrial production raw material in China, plays the role of energy support all the time, provides energy safety guarantee for national economy and social development, and is always used as the work focus of the energy industry for coal mining production. However, the existing coal mine production technology does not reach the working condition of unmanned mining under the mine, so that in the coal mine production process, an air duct is still required to convey air flow generated by a fan to a coal mine mining working face to provide sufficient air.
In order to ensure the safe production of coal mines, the monitoring of the parameters of the air duct becomes an indispensable work, and the ultrasonic wind speed sensor can be used for measuring the wind speed of fluid in the air duct, but because deep electricity utilization of a mine is an extremely luxury, the parameters of the air duct cannot be monitored in real time. Therefore, in order to improve coal exploitation and coal mine safety production, the defects need to be overcome, and a self-generating air duct parameter monitoring device applied to coal mine safety production is designed.
Disclosure of Invention
Therefore, the invention aims to provide the mining working face wind barrel parameter monitoring device and method which are simple in structure and high in practicability, and aims to solve the problem of electricity consumption requirement of mining working face wind barrel parameter monitoring.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The invention provides an excavating working face wind cylinder parameter monitoring device which comprises a wind cylinder structure, wherein an ultrasonic wind speed sensor is arranged in the wind cylinder structure, a self-generating component for supplying power to the ultrasonic wind speed sensor is arranged outside the wind cylinder structure through a supporting rod, the self-generating component is correspondingly arranged up and down relative to the wind cylinder structure and the ultrasonic wind speed sensor, the self-generating component consists of a spring, a pressing block, a piezoelectric wafer, a fixed wafer and a blunt body, the fixed wafer is in a square structure and is arranged in the blunt body and connected with the supporting rod extending into the blunt body, piezoelectric wafers are arranged on the other sides of the fixed wafer except the side connected with the supporting rod, a pressing block is arranged on the piezoelectric wafer, the spring is arranged between the pressing block and the blunt body, and the ultrasonic wind speed sensor is connected with the piezoelectric wafer through a wire.
Further, the dryer structure includes the barrel, and the axial both ends of barrel all are provided with joint and rings.
Further, both ends of the wind cylinder structure are provided with a self-generating assembly and an ultrasonic wind speed sensor corresponding to the self-generating assembly, the ultrasonic wave transmitting directions of the two ultrasonic wind speed sensors are perpendicular to the cross section of the wind cylinder structure, and the connecting line of the two ultrasonic wind speed sensors is parallel to the axis of the wind cylinder structure.
Further, the dryer structurally is provided with a fixed block, an upper fixed hole and an upper wire guide are formed in the fixed block, the fixed block is fixedly connected with the dryer structurally through the upper fixed hole, and the supporting rod is installed on the fixed block.
Further, the wind cylinder structure is also provided with a middle fixing hole corresponding to the upper fixing hole and a middle wire guide corresponding to the upper wire guide.
Further, the ultrasonic sensor is arranged on the air duct structure through the air speed measuring assembly, the air speed measuring assembly comprises a mounting block, the mounting block is arranged on the fixing block, and a lower fixing hole corresponding to the middle fixing hole and a lower wire guide corresponding to the middle wire guide are formed in the mounting block.
Further, a processing groove is formed in the mounting block and at the position where the lower fixing hole is located.
Further, the piezoelectric wafer is respectively and adhesively connected with the fixed wafer and the pressing block, and the spring is respectively and welded and connected with the pressing block and the blunt body.
Further, both ends of the supporting rod are provided with threads, the pressing block is of a cuboid structure and covers the piezoelectric wafer, the blunt body is of a hollow sphere structure and is provided with a square hole for fixing the placement of the wafer.
The invention also provides a method for monitoring the parameters of the air duct of the mining working face, which is applied to the device for monitoring the parameters of the air duct of the mining working face, and comprises the following steps: the fluid in the air duct structure flows through an ultrasonic wind speed sensor, the moving direction of the ultrasonic wave emitted by the first ultrasonic wind speed sensor is the same as the wind flow direction, and the moving speed of the fluid is the superposition of the moving speed of the ultrasonic wave and the wind flow speed; the moving direction of the ultrasonic wave emitted by the second ultrasonic wind speed sensor is opposite to the wind flow direction, and the fluid moving speed is obtained by subtracting the moving speed of the ultrasonic wave from the wind flow speed; and the wind speed in the wind drum structure is calculated based on the time difference generated by the signals received by the first ultrasonic wind speed sensor and the second ultrasonic wind speed sensor caused by the speed difference, and the wind speed is monitored in real time.
The beneficial effects of the invention are as follows: this excavating working face dryer parameter monitoring device is equipped with the dryer body through the front end along with excavating the working face in order to change fresh air and the interior dirty air of tunnel to guarantee the safe operation of excavating the in-process, and utilize ultrasonic wave transceiver's that possesses in the wind speed measurement subassembly sensor, from blunt body structure, piezoelectricity bimorph and the circuit conversion module in the power generation subassembly, when having realized accurate survey dryer fluid wind speed and wind direction, in order to solve excavating working face dryer parameter monitoring power consumption demand through the self-generating mode, the constraint of cable has been got rid of, propose new scheme for working face air feed system monitoring.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a mining face dryer parameter monitoring device in the present invention;
FIG. 2 is a schematic view of the radial cross-sectional structure of FIG. 1;
FIG. 3 is a schematic axial cross-sectional view of the body of the cartridge of FIG. 1;
FIG. 4 is an exploded view of the self-generating assembly of FIG. 1;
FIG. 5 is a schematic view of the wind speed measurement assembly of FIG. 1;
Reference numerals illustrate: the wind tunnel structure 1, the fixed block 2, the supporting rod 3, the self-generating component 4 and the wind speed measuring component 5; the device comprises a joint 11, a hanging ring 12, a middle fixing hole 13, a cylinder 14 and a middle wire guide hole 15; an upper fixing hole 21 and an upper wire guide hole 22; a spring 41, a pressing block 42, a piezoelectric wafer 43, a fixed wafer 44, and a blunt body 45; an ultrasonic wind speed sensor 51, a mounting block 52, a processing groove 53, a lower fixing hole 54 and a lower wire guide 55.
Detailed Description
The invention is further described below in connection with the following detailed description. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to be limiting of the present patent; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1-5, the device for monitoring the parameters of the wind tunnel on the working surface in the embodiment comprises a wind tunnel structure 1 fixedly arranged on the working surface in the working tunnel, wherein the wind tunnel structure 1 comprises a cylinder 14, two axial ends of the cylinder 14 are provided with a joint 11 and a hanging ring 12, and an ultrasonic wind speed sensor 51 and a self-generating assembly 4 are arranged on the cylinder 14. Like this, be equipped with the barrel with the front end of working face of excavating in order to change fresh air and the interior dirty air of tunnel, guarantee the safe operation in the excavation process, ultrasonic wave wind speed sensor is the sensor that possesses ultrasonic wave transceiver, dryer structure 1 is provided with the self-generating assembly 4 that supplies power to ultrasonic wave wind speed sensor 51 through bracing piece 3 outward, and dryer structure 1's both ends all are provided with one and from self-generating assembly 4 and its ultrasonic wave wind speed sensor 51 that corresponds with it, the ultrasonic wave emission direction of two ultrasonic wave wind speed sensors 51 is perpendicular with dryer structure 1's cross section, and both lines are parallel with dryer structure 1's axis. The self-generating assembly 4 is vertically and correspondingly arranged relative to the wind barrel structure 1 and the ultrasonic wind speed sensor 51, and is composed of a spring 41, a pressing block 42, a piezoelectric wafer 43, a fixed wafer 44 and a blunt body 45, wherein the blunt body 45 is of a hollow sphere structure, square holes for the fixed wafer 44 to be placed in are formed, the fixed wafer 44 is of a square structure and is arranged in the blunt body 45 and is connected with a supporting rod 3 extending into the blunt body 45, two ends of the supporting rod 3 are respectively provided with threads, the fixed wafer 44 and the wind barrel structure 1 are respectively connected through the threads, the piezoelectric wafers 43 are respectively arranged on other sides of the fixed wafer 44 except one side connected with the supporting rod 3, the piezoelectric wafers are mutually perpendicular, a pressing block 42 is arranged on the piezoelectric wafers 43, the piezoelectric wafers 43 are respectively connected with the fixed wafer 44 and the pressing block 42 in an adhesive mode, the pressing block 42 is of a cuboid structure, the largest surface can cover the piezoelectric wafers 43, and the spring 41 is respectively connected with the pressing block 42 and the blunt body 45 in a welding mode.
By adopting the scheme, the wind cylinder parameter monitoring device for the mining working face is provided with the wind cylinder body at the front end of the mining working face so as to replace fresh air with dirty air in a roadway, so that safe operation in the mining process is ensured, and a sensor for receiving and transmitting ultrasonic waves in a wind speed measuring assembly is utilized, so that the wind speed and the wind direction of fluid in the wind cylinder are accurately measured while the blunt body structure, the piezoelectric bimorph and the circuit conversion module in the self-generating assembly are utilized, the power consumption requirement for monitoring the wind cylinder parameter of the mining working face is met in a self-generating mode, the constraint of a cable is eliminated, and a new scheme is provided for monitoring a wind supply system of the working face.
Specifically, a fixed block 2 is arranged on the air duct structure 1 in the embodiment, an upper fixed hole 21 and an upper wire guide 22 are formed in the fixed block 2, the fixed block 2 is fixedly connected with the air duct structure 1 through the upper fixed hole 21, and a supporting rod 3 is arranged on the fixed block 2. And the wind barrel structure 1 is also provided with a middle fixing hole 13 corresponding to the upper fixing hole 21 and a middle wire guide 15 corresponding to the upper wire guide 22. The ultrasonic sensor 51 is disposed on the wind tunnel structure 1 through the wind speed measuring assembly 5, the wind speed measuring assembly 5 includes a mounting block 52, the mounting block 52 is disposed on the fixing block 2, and the mounting block 52 is provided with a lower fixing hole 54 corresponding to the middle fixing hole 13 and a lower wire guide 55 corresponding to the middle wire guide 15. Thus, the ultrasonic sensor and the self-generating assembly can be correspondingly arranged on the cylinder 14 of the air cylinder structure 1 up and down by using the fixing blocks, the fixing blocks are fixed on the cylinder after sequentially penetrating through the upper fixing holes, the middle fixing holes and the lower fixing holes by bolts or screws, and the wires connected to the piezoelectric wafer can be connected with the ultrasonic wind speed sensor after sequentially penetrating through the upper wire guide, the middle wire guide and the lower wire guide, namely, the wires for transmitting the current generated by the self-generating assembly supply working current for the ultrasonic wind speed sensor through the upper wire guide, the middle wire guide and the lower wire guide.
A processing groove 53 is formed on the mounting block 52 and at the position of the lower fixing hole 54 in the present embodiment, so as to install a sealing element or/and an elastic compression element in the processing groove, thereby ensuring the sealing and reliability of the whole connection structure.
The following describes the method for monitoring the parameters of the wind tunnel of the mining working face, which comprises the following steps: when normal ventilation is performed, the wind is introduced into the wind barrel structure from the wind opening of the fan, fluid with working requirements is formed inside the wind barrel structure, and the working face is discharged at the tail end of the wind barrel structure so as to replace fresh air with dirty air in a roadway. The fluid in the wind cylinder structure flows through the ultrasonic wind speed sensor, the blunt body in the self-generating assembly is acted by wind force to promote the spring to deform, and pressure is generated to act on the piezoelectric wafer, so that the charge distribution condition is changed, and current is formed. The ultrasonic wave motion direction emitted by the first ultrasonic wind speed sensor is the same as the wind flow direction, and the fluid motion speed is the superposition of the ultrasonic wave motion speed and the wind flow speed; the moving direction of the ultrasonic wave emitted by the second ultrasonic wind speed sensor is opposite to the wind flow direction, and the fluid moving speed is obtained by subtracting the moving speed of the ultrasonic wave from the wind flow speed; and the wind speed in the wind drum structure is calculated based on the time difference generated by the signals received by the first ultrasonic wind speed sensor and the second ultrasonic wind speed sensor caused by the speed difference, and the wind speed is monitored in real time. Thus, the mining period of the coal mine is long, the ultrasonic wind speed sensor and the monitoring equipment need to be powered for a long time, the self-generating assembly generates power by utilizing wind current outside the wind barrel structure, the pressure is decomposed to springs which are perpendicular to each other by the blunt body structure no matter how the wind current flows, the piezoelectric wafer is stressed to change the charge distribution condition, and the current is transmitted to the ultrasonic wind speed sensor and the monitoring equipment by the lead.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (7)
1. The wind tunnel parameter monitoring device for the mining working face comprises a wind tunnel structure (1), wherein an ultrasonic wind speed sensor (51) is arranged in the wind tunnel structure, and is characterized in that a fixed block (2) is arranged on the wind tunnel structure, an upper fixed hole (21) and an upper wire guide hole (22) are formed in the fixed block, the fixed block is fixedly connected with the wind tunnel structure through the upper fixed hole, and a supporting rod is arranged on the fixed block; the ultrasonic wind speed sensor comprises a wind cylinder structure, a piezoelectric wafer (43), a fixed wafer (44) and a blunt body (45), wherein a self-generating component (4) for supplying power to the ultrasonic wind speed sensor is arranged outside the wind cylinder structure through a supporting rod (3), the self-generating component is correspondingly arranged up and down relative to the wind cylinder structure and is composed of a spring (41), a pressing block (42), the piezoelectric wafer (43), the fixed wafer (44) and the blunt body (45), the fixed wafer is of a square structure, is arranged in the blunt body and is connected with the supporting rod extending into the blunt body, piezoelectric wafers are arranged on the other sides of the fixed wafer except the side connected with the supporting rod, the pressing block is arranged on the piezoelectric wafer, the spring is arranged between the pressing block and the blunt body, and the ultrasonic wind speed sensor is connected with the piezoelectric wafer through a wire; the pressing block is of a cuboid structure and covers the piezoelectric wafer, the blunt body is of a hollow sphere structure and is provided with a square hole for fixing the wafer; the air duct structure is also provided with a middle fixing hole (13) corresponding to the upper fixing hole and a middle wire guide hole (15) corresponding to the upper wire guide hole; the ultrasonic wind speed sensor (51) is arranged on the wind cylinder structure through a wind speed measuring assembly (5), the wind speed measuring assembly comprises a mounting block (52), the mounting block is arranged on the fixing block, and a lower fixing hole (54) corresponding to the middle fixing hole and a lower wire guide hole (55) corresponding to the middle wire guide hole are formed in the mounting block.
2. The mining face wind tunnel parameter monitoring device according to claim 1, characterized in that the wind tunnel structure comprises a drum body (14), and both axial ends of the drum body are provided with connectors (11) and hanging rings (12).
3. The mining face wind tunnel parameter monitoring device according to claim 1 or 2, wherein two ends of the wind tunnel structure are provided with a self-generating component and an ultrasonic wind speed sensor corresponding to the self-generating component, the ultrasonic emission directions of the two ultrasonic wind speed sensors are perpendicular to the cross section of the wind tunnel structure, and the connecting line of the two ultrasonic wind speed sensors is parallel to the axis of the wind tunnel structure.
4. A mining face dryer parameter monitoring device according to claim 3, characterized in that the mounting block is provided with a machining groove (53) at the location of the lower fixing hole.
5. The mining face dryer parameter monitoring device of claim 1, wherein the piezoelectric wafers are respectively bonded with the fixed wafers and the pressing blocks, and the springs are respectively welded with the pressing blocks and the blunt body.
6. The mining face dryer parameter monitoring device of claim 1, wherein threads are provided at both ends of the support bar.
7. A mining working face wind barrel parameter monitoring method is characterized in that: use of a mining face dryer parameter monitoring device according to claim 3, the method comprising: the fluid in the air duct structure flows through an ultrasonic wind speed sensor, the moving direction of the ultrasonic wave emitted by the first ultrasonic wind speed sensor is the same as the wind flow direction, and the moving speed of the fluid is the superposition of the moving speed of the ultrasonic wave and the wind flow speed; the moving direction of the ultrasonic wave emitted by the second ultrasonic wind speed sensor is opposite to the wind flow direction, and the fluid moving speed is obtained by subtracting the moving speed of the ultrasonic wave from the wind flow speed; and the wind speed in the wind drum structure is calculated based on the time difference generated by the signals received by the first ultrasonic wind speed sensor and the second ultrasonic wind speed sensor caused by the speed difference, and the wind speed is monitored in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210156249.6A CN114518469B (en) | 2022-02-21 | 2022-02-21 | Device and method for monitoring parameters of air duct of mining working face |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210156249.6A CN114518469B (en) | 2022-02-21 | 2022-02-21 | Device and method for monitoring parameters of air duct of mining working face |
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| Publication Number | Publication Date |
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| CN114518469A CN114518469A (en) | 2022-05-20 |
| CN114518469B true CN114518469B (en) | 2024-05-10 |
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| CN202210156249.6A Active CN114518469B (en) | 2022-02-21 | 2022-02-21 | Device and method for monitoring parameters of air duct of mining working face |
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| CN104485840A (en) * | 2015-01-07 | 2015-04-01 | 浙江师范大学 | High-performance piezoelectric longitudinal vibration energy harvester |
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| CN107769614A (en) * | 2017-11-02 | 2018-03-06 | 安徽理工大学 | A kind of multi-direction vibrational energy harvester of piezoelectric type |
| CN108459176A (en) * | 2018-04-12 | 2018-08-28 | 常州机电职业技术学院 | Piezoelectric energy collection structure based on wind induced vibration and self-powered wind speed measurement device and method |
| CN108776236A (en) * | 2018-03-30 | 2018-11-09 | 西安科技大学 | A kind of coal mine roadway sectional wind velocity measuring instrument and its measurement method |
| CN109113935A (en) * | 2018-09-29 | 2019-01-01 | 扬州大学 | A kind of spherical shape wind power piezoelectric generation device |
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2022
- 2022-02-21 CN CN202210156249.6A patent/CN114518469B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014077643A (en) * | 2012-10-09 | 2014-05-01 | Fuji Electric Co Ltd | Anemometer device |
| CN203117223U (en) * | 2013-03-19 | 2013-08-07 | 郑州光力科技股份有限公司 | Mine environment parameter measuring device |
| KR101547993B1 (en) * | 2014-03-27 | 2015-08-27 | 진동진 | Apparatus for measuring direction and velocity of wind using ultrasonic by self power generating |
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| CN107769614A (en) * | 2017-11-02 | 2018-03-06 | 安徽理工大学 | A kind of multi-direction vibrational energy harvester of piezoelectric type |
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