CN204346498U - A kind of Mine Ventilator wind speed, total head monitoring device - Google Patents
A kind of Mine Ventilator wind speed, total head monitoring device Download PDFInfo
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- CN204346498U CN204346498U CN201520013350.1U CN201520013350U CN204346498U CN 204346498 U CN204346498 U CN 204346498U CN 201520013350 U CN201520013350 U CN 201520013350U CN 204346498 U CN204346498 U CN 204346498U
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- flexible pipe
- wind speed
- total head
- blower fan
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 12
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 abstract description 21
- 238000012544 monitoring process Methods 0.000 abstract description 16
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000008676 import Effects 0.000 description 4
- 230000008595 infiltration Effects 0.000 description 4
- 238000001764 infiltration Methods 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The utility model discloses a kind of Mine Ventilator wind speed, total head monitoring device, is combined by differential pressure pick-up (1), air velocity transducer (2), positive section pilot flexible pipe (4), negative section pilot flexible pipe (4 ＇) and PLC control system (3) to form; Air velocity transducer (2) is arranged on the air inlet of blower fan (5), and differential pressure pick-up (1) is arranged on air-blower control chamber or roadway's sides; Differential pressure pick-up (1), containing positive and negative two sensing holes, connects the exit port both sides static pressure that positive and negative two sections of pilot flexible pipes (4,4 ＇) gather conduction blower fan (5) respectively; By PLC control system (3), wind speed, total head data are recorded, store and processed, wind speed, the total head of monitoring blower fan (5).The utility model has simple and practical, convenient for installation and maintenance, measure data precision advantages of higher, directly can read total head, the wind speed of Mine Ventilator, and can record Monitoring Data, store, process, overcome the problem that manual measurement error is large, workload is large.
Description
Technical field
The utility model relates to that a kind of Mine Ventilator is distinguished and admirable, blast supervising device, be specifically related to a kind of containing wind pressure sensor, the Mine Ventilator wind speed of air velocity transducer, total head supervising device, belong to mine safety, technical field of environment protection equipment, the monitoring and measurement of underground mine ventilation blower wind speed, total head can be widely used in.
Background technology
" Underground metal & nonmetal mines monitoring and controlling system construction specification " (AQ 2031-2011) and " Underground metal & nonmetal mines aeration technology specification-ventilating system detects " (AQ 2013.3-2008) requires that main fan in mine must install wind pressure sensor, air velocity transducer.At present, be, at air inlet or air outlet, wind pressure sensor is installed for the way that the monitoring of Mine Ventilator blast is common.Blast parameter comprises static pressure, dynamic pressure; static pressure can just can be born; dynamic pressure perseverance is just; total head equals static pressure and dynamic pressure sum; wind pressure sensor Monitoring Data is air inlet or the air outlet static pressure of blower fan, and by the distinguished and admirable flow characteristics of blower fan, fan outlet side static pressure is malleation; on the suction side is negative pressure, can be judged the indirect judgement parameter of wind direction and blower fan whether startup-shutdown by positive negative hydrostatic pressure.According to Bernoulli equation, the wind pressure monitoring point ventilation section before and after blower fan is identical and with under absolute altitude, the static pressure that the static pressure that outlet side measuring point is monitored deducts the monitoring of import survey measuring point equals blower press, and blower press is the basic parameter describing fan performance.Therefore, existing wind pressure monitoring cloth point mode can carry out improving the direct total head obtaining blowing machine, as arranged wind pressure signal sensor at fan inlet in main fan for mines on-line monitoring and trouble-shooter (license number: CN 201517493 U), the static pressure being only fan inlet of monitoring.In addition, during mine ventilation system measures, the method generally adopted adopts anemometry instrument to measure wind speed at air inlet, adopts blast detecting instrument to import and export position finding total head at blower fan, obtain blower press by total head difference.And measure experience according to underground site, especially the ventilation section of point position little and wind speed is large when, labor measurement is very difficult and there is security risk, and single-time measurement and artificial reading error large.
Summary of the invention
The purpose of this utility model is exactly the problems referred to above of existing for prior art and provides a kind of simple and practical, convenient for installation and maintenance, Mine Ventilator wind speed, total head monitoring device that measure data precision is high.
For realizing above-mentioned purpose of the present utility model, a kind of Mine Ventilator wind speed of the utility model, total head monitoring device by the following technical solutions:
A kind of Mine Ventilator wind speed of the utility model, total head monitoring device, containing air velocity transducer, described air velocity transducer is arranged on the tunnel centre-height at distance air inlet 5-10m place, installation site to avoid drift section irregular and infiltration position, with the serviceable life of the accuracy and air velocity transducer that improve Monitoring Data.It is also containing differential pressure pick-up, PLC control system, and differential pressure pick-up, air velocity transducer are all connected with PLC control system; Described differential pressure pick-up is arranged on two of air-blower control chamber or tunnel and helps, and infiltration position, tunnel will be avoided in installation site as far as possible.Differential pressure pick-up contains positive and negative two sensing holes, connects positive section pilot flexible pipe, negative section pilot flexible pipe respectively, and positive section pilot flexible pipe, negative section pilot flexible pipe are for gathering the exit port side static pressure of conduction blower fan; 5-10m place tunnel centre-height before negative section pilot hose end is placed in the air inlet of blower fan is also fixed, positive section pilot flexible pipe is along tunnel by brattice, and the terminal position of positive section pilot flexible pipe is placed in the tunnel centre-height at the air outlet 10-15m place of blower fan and is fixed.PLC control system records wind speed, total head data, store and processes, and according to the mean value of differential static pressure in the blower fan parallel-adder settle-out time total head as blower fan, according to the mean value of wind speed in the blower fan parallel-adder settle-out time wind speed as blower fan.
The end of described positive section pilot flexible pipe, negative section pilot flexible pipe all fixedly makes it vertical with distinguished and admirable with finer wire, and positive section pilot flexible pipe is in order to gather the distinguished and admirable static pressure of conduction fan outlet, and negative section pilot flexible pipe is in order to gather the distinguished and admirable static pressure of conduction air inlet.
According to Bernoulli equation principle, when the measuring point place drift section of positive and negative two sections of pilot flexible pipes is identical and absolute altitude is the same, exit static pressure deducts the total head that namely import static pressure obtains blower fan, is directly read by differential pressure pick-up; In order to improve the serviceable life of pilot flexible pipe, the flexible pipe of corrosion-resistant, resistance to greasy dirt selected by pilot flexible pipe; Differential pressure pick-up, air velocity transducer are all connected with PLC control system, PLC control system records wind speed, total head data, store and processes, in parallel-adder settle-out time, the mean value of differential static pressure is as the total head of blower fan, and in parallel-adder settle-out time, the mean value of wind speed is as the wind speed of blower fan.
Compared with prior art, a kind of Mine Ventilator wind speed of the utility model, total head monitoring device beneficial effect are: have simple and practical, convenient for installation and maintenance, that measure data precision is high advantage, and can record Monitoring Data, store, process, directly can read total head, the wind speed of Mine Ventilator, overcome the problem that manual measurement error is large, workload is large.
Accompanying drawing explanation
Fig. 1 is a kind of Mine Ventilator wind speed of the utility model, total head monitoring apparatus structure schematic diagram.
Reference numeral is: 1-differential pressure pick-up; 2-air velocity transducer; 3-PLC control system; 4-positive section pilot flexible pipe; 4 ＇-negative section pilot flexible pipe; 5-blower fan; 6-thin wire; 7-brattice.
Embodiment
For further describing the utility model, below in conjunction with drawings and Examples, a kind of Mine Ventilator wind speed of the utility model, total head monitoring device are described in further details.
A kind of Mine Ventilator wind speed of the utility model the utility model as shown in Figure 1, total head monitoring apparatus structure schematic diagram are found out, a kind of Mine Ventilator wind speed of the utility model, total head monitoring device are combined formed by differential pressure pick-up 1, air velocity transducer 2, PLC control system 3, positive section pilot flexible pipe 4, negative section pilot flexible pipe 4 ＇;
Air velocity transducer 2 is arranged on the tunnel centre-height at the air inlet 5-10m place of distance blower fan 5, and adopt finer wire 6 to fix, irregular and the infiltration position, tunnel of drift section will be avoided in installation site, with the serviceable life of the accuracy and air velocity transducer 2 that improve Monitoring Data; Differential pressure pick-up 1 is arranged on air-blower control chamber or roadway's sides, avoids infiltration position, tunnel as far as possible, and differential pressure pick-up 1 is containing positive and negative two sensing holes, and positive and negative sensing hole is connected with positive section pilot flexible pipe 4, negative section pilot flexible pipe 4 ＇ respectively.Positive section pilot flexible pipe 4 is along tunnel by brattice 7, and terminal position is placed in the tunnel centre-height at the air outlet 10-15m place of blower fan 5 and fixes with finer wire 6, makes the end of positive section pilot flexible pipe 4 vertical with wind direction, gathers the distinguished and admirable static pressure of conduction blower fan 5 air outlet; Negative section pilot flexible pipe 4 ＇ is along roadway layout, and before terminal position is placed in the air inlet of blower fan 5, the tunnel centre-height at 5-10m place is also fixed with finer wire 6, makes the end of negative section pilot flexible pipe 4 ＇ vertical with wind direction, gathers the distinguished and admirable static pressure of air inlet of conduction blower fan 5; According to Bernoulli equation principle, when the measuring point place drift section of positive section pilot flexible pipe 4, negative section pilot flexible pipe 4 ＇ is identical, and when absolute altitude is the same, exit static pressure deducts the total head that namely import static pressure obtains blower fan 5, is directly read by differential pressure pick-up 1; In order to improve the serviceable life of pilot flexible pipe, positive section pilot flexible pipe 4, negative section pilot flexible pipe 4 ＇ all select the flexible pipe of corrosion-resistant material, resistance to greasy dirt; Differential pressure pick-up 1, air velocity transducer 2 are all connected with PLC control system 3, PLC control system 3 pairs of wind speed, total head data record, store and process, and according to the mean value of differential static pressure in the parallel-adder settle-out time total head as blower fan 5, in parallel-adder settle-out time, the mean value of wind speed is as the wind speed of blower fan 5.
Claims (3)
1. Mine Ventilator wind speed, a total head monitoring device, containing air velocity transducer (2), is characterized in that: described air velocity transducer (2) is arranged on the tunnel centre-height at distance blower fan (5) air inlet 5-10m place; It is also containing differential pressure pick-up (1), PLC control system (3), and differential pressure pick-up (1), air velocity transducer (2) are all connected with PLC control system (3); Described differential pressure pick-up (1) is arranged on two of air-blower control chamber or tunnel and helps, differential pressure pick-up (1) is containing positive and negative two sensing holes, connect positive section pilot flexible pipe (4), negative section pilot flexible pipe (4 ＇) respectively, 5-10m place tunnel centre-height before negative section pilot flexible pipe (4 ＇) end is placed in the air inlet of blower fan is also fixed, positive section pilot flexible pipe (4) is along tunnel by brattice (7), and the terminal position of positive section pilot flexible pipe (4) is placed in the tunnel centre-height at the air outlet 10-15m place of blower fan (5) and is fixed.
2. a kind of Mine Ventilator wind speed as claimed in claim 1, total head monitoring device, is characterized in that: the end of described positive section pilot flexible pipe (4), negative section pilot flexible pipe (4 ＇) all uses finer wire (6) fixedly to make it vertical with distinguished and admirable.
3. a kind of Mine Ventilator wind speed as claimed in claim 1 or 2, total head monitoring device, is characterized in that: described positive section pilot flexible pipe (4), negative section pilot flexible pipe (4 ＇) all select the flexible pipe of corrosion-resistant material, resistance to greasy dirt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013350.1U CN204346498U (en) | 2015-01-09 | 2015-01-09 | A kind of Mine Ventilator wind speed, total head monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520013350.1U CN204346498U (en) | 2015-01-09 | 2015-01-09 | A kind of Mine Ventilator wind speed, total head monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN204346498U true CN204346498U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520013350.1U Expired - Fee Related CN204346498U (en) | 2015-01-09 | 2015-01-09 | A kind of Mine Ventilator wind speed, total head monitoring device |
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| CN (1) | CN204346498U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870000A (en) * | 2016-12-31 | 2017-06-20 | 姬松涛 | A kind of mining impact wave buffer unit and method |
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
| CN107859527A (en) * | 2017-11-20 | 2018-03-30 | 枣庄矿业(集团)付村煤业有限公司 | The method that wind is surveyed in mine pressure measurement wind measuring device and its pressure measurement |
| CN113550927A (en) * | 2021-09-01 | 2021-10-26 | 镇江市丹徒区粮机厂有限公司 | Visual industrial fan of wind speed |
-
2015
- 2015-01-09 CN CN201520013350.1U patent/CN204346498U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870000A (en) * | 2016-12-31 | 2017-06-20 | 姬松涛 | A kind of mining impact wave buffer unit and method |
| CN106870000B (en) * | 2016-12-31 | 2019-09-27 | 姬松涛 | A kind of mining impact wave buffer unit and method |
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
| CN107014444B (en) * | 2017-05-27 | 2023-08-29 | 山东罗泰风机有限公司 | Fan dynamic performance parameter measurement system |
| CN107859527A (en) * | 2017-11-20 | 2018-03-30 | 枣庄矿业(集团)付村煤业有限公司 | The method that wind is surveyed in mine pressure measurement wind measuring device and its pressure measurement |
| CN113550927A (en) * | 2021-09-01 | 2021-10-26 | 镇江市丹徒区粮机厂有限公司 | Visual industrial fan of wind speed |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20190109 |