CN202929051U - Underground calibrator of air velocity transducer for mine - Google Patents
Underground calibrator of air velocity transducer for mine Download PDFInfo
- Publication number
- CN202929051U CN202929051U CN 201220670031 CN201220670031U CN202929051U CN 202929051 U CN202929051 U CN 202929051U CN 201220670031 CN201220670031 CN 201220670031 CN 201220670031 U CN201220670031 U CN 201220670031U CN 202929051 U CN202929051 U CN 202929051U
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- China
- Prior art keywords
- fan
- mine
- coal mine
- wind speed
- mass flowmeter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model relates to a sensor calibration technology, specifically to an underground calibrator of an air velocity transducer for mine. According to the utility model, the problem that a present calibration method for air velocity transducers for mine is not convenient to operate and has low calibration efficiency is solved. The underground calibrator of the air velocity transducer for mine comprises a fan, a fan speed regulator, a mass flowmeter and a power supply. A control signal input end of the fan is connected with a control signal output end of the fan speed regulator. An air outlet of the fan sealingly communicates with an air intake of the mass flowmeter. A power input end of the fan, a power input end of the fan speed regulator and a power input end of the mass flowmeter are all connected with an output end of the power supply. The utility model is suitable for calibration of the air velocity transducer for mine.
Description
Technical field
The utility model relates to sensor calibration technique, specifically a kind of wind speed sensor for coal mine down-hole prover.
Background technology
According to the relative national standards regulation, in order to guarantee not produce safety problem because in-line meter loses efficacy under mine, wind speed sensor for coal mine must be the pressure calibration of 7-10 days in the cycle of carrying out.Under the prior art condition, when wind speed sensor for coal mine is calibrated, the calibration steps that adopts is as follows: at first wind speed sensor for coal mine is disassembled from Coal Mine Safety Monitoring System, then utilize mining wind-tunnel that wind speed sensor for coal mine is calibrated in the laboratory.The shortcoming of above-mentioned calibration steps is: need frequently to dismantle wind speed sensor for coal mine in calibration process, cause thus inconvenient operation, and then affect calibration efficiency.Based on this, be necessary to invent a kind of brand-new calibrating installation for wind speed sensor for coal mine, to solve existing wind speed sensor for coal mine calibration steps inconvenient operation and the low problem of calibration efficiency.
Summary of the invention
The utility model is in order to solve existing wind speed sensor for coal mine calibration steps inconvenient operation and the low problem of calibration efficiency, and a kind of wind speed sensor for coal mine down-hole prover is provided.
The utility model is to adopt following technical scheme to realize: wind speed sensor for coal mine down-hole prover comprises blower fan, fan speed regulation device, mass flowmeter and power supply; The control signal input end of blower fan is connected with the control signal output terminal of fan speed regulation device; The air outlet of blower fan is communicated with the sealing of the air inlet of mass flowmeter; The power input of the power input of blower fan, fan speed regulation device, the power input of mass flowmeter all are connected with the output terminal of power supply.
During work, the air inlet sealing of the air outlet of blower fan and the on-the-spot wind speed sensor for coal mine to be calibrated of moving is communicated with, power supply is powered to blower fan, fan speed regulation device, mass flowmeter respectively.When wind speed sensor for coal mine to be calibrated is calibrated, at first start blower fan, blower fan inputs to respectively mass flowmeter and wind speed sensor for coal mine to be calibrated by air outlet with standard wind speed.Then, the output valve of mass flowmeter and the output valve of wind speed sensor for coal mine to be calibrated are compared.If the output valve of the output valve of mass flowmeter and wind speed sensor for coal mine to be calibrated is consistent, illustrate that wind speed sensor for coal mine to be calibrated is qualified.If the output valve of the output valve of mass flowmeter and wind speed sensor for coal mine to be calibrated is inconsistent, illustrate that wind speed sensor for coal mine to be calibrated is defective, thus wind speed sensor for coal mine is carried out on-line calibration.In this process, can regulate the standard wind speed of blower fan by the fan speed regulation device.Based on said process, compare with existing wind speed sensor for coal mine calibration steps, when adopting wind speed sensor for coal mine described in the utility model down-hole prover that wind speed sensor for coal mine is calibrated, need not to dismantle wind speed sensor for coal mine, just can realize wind speed sensor for coal mine is carried out on-line calibration, make thus more convenient operation, calibration efficiency higher, thereby efficiently solve existing wind speed sensor for coal mine calibration steps inconvenient operation and the low problem of calibration efficiency.
The utility model is simple in structure, reasonable in design, efficiently solves existing wind speed sensor for coal mine calibration steps inconvenient operation and the low problem of calibration efficiency, is applicable to the calibration of wind speed sensor for coal mine.
Description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1-blower fan, 2-fan speed regulation device, 3-mass flowmeter, 4-power supply, 5-wind speed sensor for coal mine to be calibrated.
Embodiment
Wind speed sensor for coal mine down-hole prover comprises blower fan 1, fan speed regulation device 2, mass flowmeter 3 and power supply 4; The control signal input end of blower fan 1 is connected with the control signal output terminal of fan speed regulation device 2; The air outlet of blower fan 1 is communicated with the air inlet sealing of mass flowmeter 3; The power input of the power input of the power input of blower fan 1, fan speed regulation device 2, mass flowmeter 3 all is connected with the output terminal of power supply 4;
During concrete enforcement, blower fan 1 is high-speed centrifugal fan.Mass flowmeter 3 is thermal type gas quality flow meter.Power supply 4 is the explosion-proof direct supply of 24VDC.Between the air inlet of the air outlet of blower fan 1 and wind speed sensor for coal mine 5 to be calibrated, all be communicated with by rubber sealing boot between the air inlet of the air outlet of blower fan 1 and mass flowmeter 3, with the sealing that guarantees to be communicated with, and then guarantee the accuracy of calibration.
Claims (1)
1. a wind speed sensor for coal mine down-hole prover, is characterized in that: comprise blower fan (1), fan speed regulation device (2), mass flowmeter (3) and power supply (4); The control signal input end of blower fan (1) is connected with the control signal output terminal of fan speed regulation device (2); The air outlet of blower fan (1) is communicated with the air inlet sealing of mass flowmeter (3); The power input of the power input of the power input of blower fan (1), fan speed regulation device (2), mass flowmeter (3) all is connected with the output terminal of power supply (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670031 CN202929051U (en) | 2012-12-07 | 2012-12-07 | Underground calibrator of air velocity transducer for mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220670031 CN202929051U (en) | 2012-12-07 | 2012-12-07 | Underground calibrator of air velocity transducer for mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202929051U true CN202929051U (en) | 2013-05-08 |
Family
ID=48219000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220670031 Expired - Lifetime CN202929051U (en) | 2012-12-07 | 2012-12-07 | Underground calibrator of air velocity transducer for mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202929051U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907659A (en) * | 2019-11-25 | 2020-03-24 | 华北科技学院 | Mining wind speed sensor and correction method thereof |
| CN113125804A (en) * | 2019-12-30 | 2021-07-16 | 山东省气象局大气探测技术保障中心 | Method and device for calibrating starting wind speed based on frequency timing |
-
2012
- 2012-12-07 CN CN 201220670031 patent/CN202929051U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110907659A (en) * | 2019-11-25 | 2020-03-24 | 华北科技学院 | Mining wind speed sensor and correction method thereof |
| CN113125804A (en) * | 2019-12-30 | 2021-07-16 | 山东省气象局大气探测技术保障中心 | Method and device for calibrating starting wind speed based on frequency timing |
| CN113125804B (en) * | 2019-12-30 | 2022-08-02 | 山东省气象局大气探测技术保障中心 | Method and device for calibrating starting wind speed based on frequency timing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130508 |