CN203365459U - Bidirectional wind speed and wind direction monitoring system - Google Patents
Bidirectional wind speed and wind direction monitoring system Download PDFInfo
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- CN203365459U CN203365459U CN 201320504535 CN201320504535U CN203365459U CN 203365459 U CN203365459 U CN 203365459U CN 201320504535 CN201320504535 CN 201320504535 CN 201320504535 U CN201320504535 U CN 201320504535U CN 203365459 U CN203365459 U CN 203365459U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 238000005070 sampling Methods 0.000 claims abstract description 46
- 239000000523 sample Substances 0.000 claims abstract description 40
- 238000012545 processing Methods 0.000 claims description 14
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Abstract
The utility model discloses a bidirectional wind speed and wind direction monitoring system, which comprises a micro differential pressure sampling probe and a micro differential pressure element, wherein the micro differential pressure sampling probe comprises a pressure guiding pipe I and a pressure guiding pipe II for sampling, and the pressure guiding pipe I and the pressure guiding pipe II are provided with division grooves. The bidirectional wind speed and wind direction monitoring system adopts two pressure guiding pipes, can measure bidirectionally when used, and is flexible and convenient, applicable to wind speed and wind direction measurement in occasions with extremely severe conditions such as coal mines and the like, and simple in structure. Meanwhile, the system enables a condensate liquid not to form surface tension easily, avoids blocking, and is high in capacity of resisting dust and water vapor influences, high in measurement precision and stability, simple in structure, easy to process and assemble and long in service cycle, and saves the use cost. The bidirectional wind speed and wind direction monitoring system is further provided with a zero clearing assembly, thereby eliminating delaying non-linear characteristics after full-range operation of a defused silicon pressure sensor. When the bidirectional wind speed and wind direction monitoring system is used, the zero point variation amount within a range of 0-40 DEG C is less than 0.1Pa, thereby being capable of realizing stable measurement of 0.1Pa.
Description
Technical field
The utility model relates to a kind of safe auxiliary device be applicable under coal mine, particularly a kind of Bidirectional wind speed, wind direction monitoring system.
Background technology
Mine ventilation continuously is sent to down-hole to ground air exactly, continuously the down-hole vitiated air is discharged outside well simultaneously.Mine ventilation is the basis of Safety of Coal Mine Production, it not only has to the conveying of Ge Yongfeng place, down-hole fresh distinguished and admirable, ensure the critical function that underground operators is breathed, simultaneously, also there is dilution, get rid of the functions such as cooling between mine gas and dust and operation area.Reasonably ventilating is the important means that suppresses coal nature and fire development, if but ventilating system is arranged unreasonable or miscarriage, by the main cause that causes exactly methane accumulation and spontaneous fire and cause gas, fire failure further to enlarge.Therefore the aeration technology and the level monitoring that improve mine are the bases that guarantees mine normal production and safety case, and wind speed, wind transducer are the Main Means of wind speed size and wind direction situation under monitor well, for guarantee work safety of coal mine production provides strong technical guarantee.The air velocity transducer of prior art adopts ultrasound wave vortex street principle mostly, and measurement means is comparatively single, and equipment is used comparatively constraint, underaction, and can not realize Bidirectional wind speed, wind direction measurement, long-term work is subject to the dust influence of moisture, affects measuring accuracy; The rear sensor that the differential pressure type measuring principle occurs, such as shrinking the tubular type air velocity transducer, still can not realize Bidirectional wind speed, wind direction Measurement accuracy; And the sensor does not have the automatic clear ability, but Hysteresis Nonlinear characteristic and the zero temperature drift characteristic of intrinsic unconventional, the many-valued correspondence of pressure transducer itself have limited its measuring accuracy.
In prior art, the pressure difference sensor that automatically controlled automatic zero point correcting occurred, valve member as disclosed as patented claim 201180032464.5, function with automatic zero point correcting, but its complex structure, process and assemble is extremely difficult, and, this product is because quality of fit between each kinematic pair is had relatively high expectations, thereby sealing property that need to be high, otherwise can lose efficacy for the occasion of the inclement conditions such as colliery.
Therefore, need a kind of Bidirectional wind speed, wind direction monitoring system, be applicable to extremely severe occasion measuring wind and the wind directions of condition such as colliery, have higher measuring accuracy and stability, simple in structure, process and assemble is easy, and life cycle is longer, saves use cost.
The utility model content
In view of this, the utility model provides a kind of Bidirectional wind speed, wind direction monitoring system, is applicable to extremely severe occasion measuring wind and the wind directions of condition such as colliery, have higher measuring accuracy and stability, simple in structure, process and assemble is easy, and life cycle is longer, save use cost.
Bidirectional wind speed of the present utility model, wind direction monitoring system, comprise differential pressure sampling probe and micro-pressure-difference element;
Described differential pressure sampling probe comprises for pressure guiding pipe I and the pressure guiding pipe II of sampling, on the runner of described pressure guiding pipe I and pressure guiding pipe II, is respectively equipped with diversion trench.
Further, between pressure guiding pipe I and pressure guiding pipe II, be symmetrical arranged and diversion trench arranges respectively vertically;
Further, also comprise the automatic clear assembly, described micro-pressure-difference element has sample tap I and sample tap II, and corresponding connection of described pressure guiding pipe I and pressure guiding pipe II is provided with gas outlet I and gas outlet II;
The automatic clear assembly is provided with interface I, interface II and interface III, and described interface I is communicated in the gas outlet I, and the interface II is communicated in the sample tap I, and the interface III is communicated in the sample tap II; Described gas outlet II is communicated in the sample tap II, switchablely between described interface I and interface III with the interface II, is communicated with or closes;
Further, also comprise automatic control system; Described automatic clear assembly comprise there is the interface I, the two-bit triplet solenoid valve of interface II and interface III;
Described automatic control system comprises:
Command input unit, for inputting external command;
CPU (central processing unit), for the pressure difference signal that receives external command, micro-pressure-difference element with to the control circuit output control command of two-bit triplet solenoid valve;
The data output unit, for the command signal that receives CPU (central processing unit) and export data message;
Further, the differential pressure sampling probe also comprises the sampling bolster, this sampling bolster comprises sampling cushion chamber I and the sampling cushion chamber II be separated to form in cushion chamber shell and buffering chamber enclosure, and pressure guiding pipe I and pressure guiding pipe II and gas outlet I and gas outlet II are by sampling cushion chamber I and corresponding connection of sampling cushion chamber II;
Further, between pressure guiding pipe I and pressure guiding pipe II, be symmetrical arranged and tube wall on be provided with vertically respectively diversion trench, it is open-ended that this diversion trench is positioned at the air inlet of the air inlet end of pressure guiding pipe I and pressure guiding pipe II;
Further, described pressure guiding pipe I and pressure guiding pipe II all adopt the pitot tube structure, radially opposing setting between opposing bending and diversion trench between the end of the end of pressure guiding pipe I and pressure guiding pipe II; Described diversion trench radially runs through tube wall along pressure guiding pipe;
Further, automatic control system also comprises the control command for receiving CPU (central processing unit) and sends the alarm unit of alerting signal; Described CPU (central processing unit), micro-pressure-difference element and two-bit triplet solenoid valve and control circuit plastic packaging thereof are in a housing, and described command input unit and data output unit are positioned at this surface of shell;
Further, described automatic clear assembly also comprises the three-way piece that is communicated in gas outlet II, sample tap II and interface III; Described pressure guiding pipe I is fixedly connected with or is integrally formed in same pressure guiding pipe flange with the pressure guiding pipe II, and this pressure guiding pipe flange is connected in the cushion chamber shell with the form detachable-type sealed of end cap;
Further, described sampling cushion chamber I is directly formed by the cushion chamber shell, and sampling cushion chamber II is formed by the pipe nipple inner chamber that is positioned at the cushion chamber shell, and this pipe nipple is sealed and axially is pressed in the cushion chamber shell along it with extraneous by a flange.
The beneficial effects of the utility model: Bidirectional wind speed of the present utility model, wind direction monitoring system, adopt two pressure guiding pipes, but bidirectional measurement during use, flexibly and easily, be applicable to extremely severe occasion measuring wind and the wind directions of condition such as colliery, the simplicity of structure, simultaneously, pressure guiding pipe has diversion trench, make condensed fluid be difficult for forming surface tension, avoid stopping up, anti-dust steam capability of influence is strong, measuring accuracy and stability are higher, have the zero point correction function, simple in structure, process and assemble is easy, and life cycle is longer, save use cost.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is the utility model theory diagram;
Fig. 2 is structural representation of the present utility model;
The structural representation that Fig. 3 is the differential pressure sampling probe;
The side view that Fig. 4 is Fig. 3;
Fig. 5 is detection method process flow diagram of the present utility model.
Embodiment
Fig. 1 is the utility model theory diagram, figure, and 2 is structural representation of the present utility model, the structural representation that Fig. 3 is the differential pressure sampling probe, the side view that Fig. 4 is Fig. 3; As shown in the figure: Bidirectional wind speed of the present utility model, wind direction monitoring system comprise differential pressure sampling probe 1 and micro-pressure-difference element 8; Micro-pressure-difference element 8 is general adopts existing pressure transducer to make, and does not repeat them here;
Described differential pressure sampling probe 1 comprises for the pressure guiding pipe I 16 of sampling and two pressure guiding pipe structures of pressure guiding pipe II 17 employings, can realize bidirectional sample, easy to use; During sampling, can set pressure guiding pipe I 16 for the high pressure pressure guiding pipe, pressure guiding pipe II 17 is the low pressure pressure guiding pipe; Be respectively equipped with diversion trench on the runner of described pressure guiding pipe I 16 and pressure guiding pipe II 17, the surface tension produced for eliminating condensed fluid, avoid stopping up.
In the present embodiment, between pressure guiding pipe I 16 and pressure guiding pipe II 17, be symmetrical arranged and diversion trench respectively arranges (shown in figure vertically, diversion trench 19 on pressure guiding pipe I 16 and the diversion trench 18 on pressure guiding pipe II 17), it is open-ended that this diversion trench (diversion trench 19 and diversion trench 18) is positioned at the air inlet of the air inlet end of pressure guiding pipe I 16 and pressure guiding pipe II 17; Be symmetrical arranged and be more conducive to two-way detection, and this diversion trench makes tube wall be interrupted, condensate water can't form continuous surface tension, thereby can flow out with diversion trench, avoids occurring that condensate water or dust latch up phenomenon occur; What axially indication was pressure guiding pipe is axial, and namely air-flow is along the runner direction of pressure guiding pipe.
In the present embodiment, also comprise the automatic clear assembly, described micro-pressure-difference element 8 has sample tap I 81 and sample tap II 82, described pressure guiding pipe I 16 and corresponding connection of pressure guiding pipe II 17 are provided with gas outlet I 11 and gas outlet II 12, be that pressure guiding pipe I 16 is communicated in gas outlet I 11, pressure guiding pipe II 17 is communicated in gas outlet II 12; ; The automatic clear assembly is provided with interface I 61, interface II 62 and interface III 63, and described interface I 61 is communicated in gas outlet I 11, and interface II 62 is communicated in sample tap I 81, and interface III 63 is communicated in sample tap II 82; Described gas outlet II 12 is communicated in sample tap II 82, switchablely between described interface I 61 and interface III 63 with interface II 62, is communicated with or closes; According to said structure, the switching between interface I 61 and interface III 63 can realize by solenoid valve, also can adopt other electric drives structure, even manually also can realize; Conducting between interface I 61 and interface II 62, sample tap I 81 and sample tap II 82 respectively with gas outlet I 11 and 12 conductings of gas outlet II, belong to the testing state; Conducting between interface III 63 and interface II 62, sample tap I 81 and sample tap II 82 are communicated with, the sample tap I 81 of micro-pressure-difference element 8 is identical with sample tap II 82 pressure, belong to the state conducting of making zero, have the zero point correction function, Hysteresis Nonlinear characteristic after the work of the utility model elimination diffusion silicon pressure sensor full scale, through being used, in 0～40 ℃ of scope of the utility model, the Zero change amount is less than 0.1Pa, can realize the stably measured of 0.1Pa.
In the present embodiment, also comprise automatic control system; Described automatic clear assembly comprise there is interface I 61, the two-bit triplet solenoid valve 6 of interface II 62 and interface III 63;
Described automatic control system comprises:
Command input unit 10, for inputting external command; This external command has referred to the general instruction of detection, generally comprises startup, automatic clear, warning starts or stops and data are preserved etc.
CPU (central processing unit) 3, for the pressure difference signal that receives external command, micro-pressure-difference element 8 with to the control circuit 7 output control commands of two-bit triplet solenoid valve 6; The pressure difference signal of micro-pressure-difference element 8 is basic datas that two-bit triplet solenoid valve 6 opens and closes, according to this signal deciding two-bit triplet solenoid valve in detecting position or zero clearing position;
In the present embodiment, differential pressure sampling probe 1 also comprises the sampling bolster, this sampling bolster comprises sampling cushion chamber I 13 and the sampling cushion chamber II 14 be separated to form in cushion chamber shell 15 and buffering chamber enclosure 15, and pressure guiding pipe I 16 and pressure guiding pipe II 17 and gas outlet I 11 and gas outlet II 12 are by sampling cushion chamber I 13 and 14 corresponding connections of sampling cushion chamber II; Be provided with the sampling buffer unit, avoid pressure jump in sampling process, can suitably obtain cushioning the impact that the impulse medium causes, avoid condensate water and dust to directly act on pressure transducer, strengthen anti-dust steam capability of influence strong, guaranteed measuring accuracy and the stability of wind speed, wind direction pick-up unit.
In the present embodiment, described pressure guiding pipe I 16 and pressure guiding pipe II 17 all adopt the pitot tube structure, radially opposing setting between opposing bending and diversion trench between the end of the end of pressure guiding pipe I 16 and pressure guiding pipe II 17 (diversion trench 19 and diversion trench 18); Described diversion trench radially runs through tube wall along pressure guiding pipe; Adopt the pressure guiding pipe of this structure, make diversion trench not only there is the anti-blocking effect of water conservancy diversion, but also there is the impulse effect, further guarantee the accuracy of measurement result.
In the present embodiment, automatic control system also comprises the control command for receiving CPU (central processing unit) 3 and sends the alarm unit 5 of alerting signal, alarm unit generally comprises acoustic alarm, light and reports to the police or sound and light alarm, surpasses the upper limit in air speed value, rolls off the production line or wind direction can be reported to the police when contrary; Described CPU (central processing unit), micro-pressure-difference element and two-bit triplet solenoid valve and control circuit plastic packaging thereof are in a housing 2, and described command input unit and data output unit 4 are positioned at this housing 2 surfaces; Plastic packaging generally adopts epoxy resin or other plastic injection-moulded fixing modes, adopts the structure of plastic packaging to make this structural integrity strong, has water proof and dust proof preferably, and the ability of opposing external force is stronger.
In the present embodiment, described automatic clear assembly also comprises the three-way piece that is communicated in gas outlet II 12, sample tap II 82 and interface III 63; Adopt the syndeton of threeway, whole gas circuit is arranged neatly, easy installation and removal.
In the present embodiment, described pressure guiding pipe I 16 and pressure guiding pipe II 17 are integrally formed in same flange pressure guiding pipe flange 20, and this pressure guiding pipe flange 20 is connected in cushion chamber shell 15 with the form detachable-type sealed of end cap; The mode of sealing adopts the form of sealing gasket 21, simple in structure, and sealing is reliable; This Demountable makes whole bolster globality strong, easy to maintenance.
In the present embodiment, described sampling cushion chamber I 13 is directly formed by cushion chamber shell 15, sampling cushion chamber II 14 is formed by the pipe nipple inner chamber that is positioned at cushion chamber shell 15, this pipe nipple is sealed and axially is pressed in cushion chamber shell 15 along it with extraneous by pressure guiding pipe flange 20, be that pressure guiding pipe flange 20 is connected in cushion chamber shell 15, pipe nipple is formed to axle pressure, and this axle pressure makes short circuit be fixed in cushion chamber shell 15 and compresses and extraneous sealing; This structure makes to sample cushion chamber I 13 and sample cushion chamber II 13 and consists of different parts, and sealing is better relatively, not there will be the phenomenon of collaborating, and guarantees the accurate of result; As shown in the figure, two sections of short circuits form the shrinking neck type steps, and step is because pressure guiding pipe flange 20 pushes against the bolster inner walls, necking down respectively correspondence stretch out bolster shell 15 for connect pressure guiding pipe II 17 and by pipeline communication in three-way piece 9; Certainly, sampling cushion chamber I 13 directly is communicated in pressure guiding pipe I 16 by pressure guiding pipe flange 20, and is positioned at gas outlet I 11 and is provided with joint.
Fig. 5 is detection method process flow diagram of the present utility model, and the utility model is for detection of the step of wind speed and direction:
A. opening device, power on and initialization, and read micro-pressure-difference element pressure difference data, determines whether device is cleared condition; Otherwise that connects the automatic clear assembly is provided with interface II and interface III, the both positive and negative polarity that makes the differential pressure element is in same pressure environment and reach the zero clearing time of setting; Reach the zero clearing time or start first original paper and complete zero clearing;
B. cut off the on-state between interface II and interface III and connect the interface I and the interface II, introduce high pressure and low pressure by pressure guiding pipe I and pressure guiding pipe II, make the distinguished and admirable differential pressure caused of micro-pressure-difference element testing, and differential pressure signal is converted to electric signal delivers to CPU (central processing unit), calculate the air speed data signal;
C. CPU (central processing unit) exports the electric signal in step b to the data output unit and, controls alarm unit and report to the police when reverse higher than higher limit or wind direction lower than lower limit according to the air speed value that detects;
In step b, pressure guiding pipe I and pressure guiding pipe II can be according to setting low pressure and high-pressure sampling port each other.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not breaking away from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. a Bidirectional wind speed, wind direction monitoring system, is characterized in that: comprise differential pressure sampling probe and micro-pressure-difference element;
Described differential pressure sampling probe comprises for pressure guiding pipe I and the pressure guiding pipe II of sampling, on the runner of described pressure guiding pipe I and pressure guiding pipe II, is respectively equipped with diversion trench.
2. Bidirectional wind speed according to claim 1, wind direction monitoring system, is characterized in that: between pressure guiding pipe I and pressure guiding pipe II, be symmetrical arranged and diversion trench setting vertically respectively.
3. Bidirectional wind speed according to claim 2, wind direction monitoring system, it is characterized in that: also comprise the automatic clear assembly, described micro-pressure-difference element has sample tap I and sample tap II, and corresponding connection of described pressure guiding pipe I and pressure guiding pipe II is provided with gas outlet I and gas outlet II;
The automatic clear assembly is provided with interface I, interface II and interface III, and described interface I is communicated in the gas outlet I, and the interface II is communicated in the sample tap I, and the interface III is communicated in the sample tap II; Described gas outlet II is communicated in the sample tap II, switchablely between described interface I and interface III with the interface II, is communicated with or closes.
4. Bidirectional wind speed according to claim 3, wind direction monitoring system, is characterized in that: also comprise automatic control system; Described automatic clear assembly comprise there is the interface I, the two-bit triplet solenoid valve of interface II and interface III;
Described automatic control system comprises:
Command input unit, for inputting external command;
CPU (central processing unit), for the pressure difference signal that receives external command, micro-pressure-difference element with to the control circuit output control command of two-bit triplet solenoid valve;
The data output unit, for the command signal that receives CPU (central processing unit) and export data message.
5. Bidirectional wind speed according to claim 4, wind direction monitoring system, it is characterized in that: the differential pressure sampling probe also comprises the sampling bolster, this sampling bolster comprises sampling cushion chamber I and the sampling cushion chamber II be separated to form in cushion chamber shell and buffering chamber enclosure, and pressure guiding pipe I and pressure guiding pipe II and gas outlet I and gas outlet II are by sampling cushion chamber I and corresponding connection of sampling cushion chamber II.
6. Bidirectional wind speed according to claim 5, wind direction monitoring system is characterized in that: it is open-ended that described diversion trench is positioned at the air inlet of the air inlet end of pressure guiding pipe I and pressure guiding pipe II.
7. Bidirectional wind speed according to claim 6, wind direction monitoring system, it is characterized in that: described pressure guiding pipe I and pressure guiding pipe II all adopt the pitot tube structure, radially opposing setting between opposing bending and diversion trench between the end of the end of pressure guiding pipe I and pressure guiding pipe II; Described diversion trench radially runs through tube wall along pressure guiding pipe.
8. Bidirectional wind speed according to claim 7, wind direction monitoring system, it is characterized in that: automatic control system also comprises the control command for receiving CPU (central processing unit) and sends the alarm unit of alerting signal; Described CPU (central processing unit), micro-pressure-difference element and two-bit triplet solenoid valve and control circuit plastic packaging thereof are in a housing, and described command input unit and data output unit are positioned at this surface of shell.
9. Bidirectional wind speed according to claim 8, wind direction monitoring system, it is characterized in that: described automatic clear assembly also comprises the three-way piece that is communicated in gas outlet II, sample tap II and interface III; Described pressure guiding pipe I is fixedly connected with or is integrally formed in same pressure guiding pipe flange with the pressure guiding pipe II, and this pressure guiding pipe flange is connected in the cushion chamber shell with the form detachable-type sealed of end cap.
10. Bidirectional wind speed according to claim 9, wind direction monitoring system, it is characterized in that: described sampling cushion chamber I is directly formed by the cushion chamber shell, sampling cushion chamber II is formed by the pipe nipple inner chamber that is positioned at the cushion chamber shell, and this pipe nipple is sealed and axially is pressed in the cushion chamber shell along it with extraneous by the pressure guiding pipe flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320504535 CN203365459U (en) | 2013-08-16 | 2013-08-16 | Bidirectional wind speed and wind direction monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320504535 CN203365459U (en) | 2013-08-16 | 2013-08-16 | Bidirectional wind speed and wind direction monitoring system |
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| CN203365459U true CN203365459U (en) | 2013-12-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000741A (en) * | 2018-06-06 | 2018-12-14 | 胡国勇 | Voltage data acquisition device and method are prevented and treated for FSS engineering fire |
| CN109884341A (en) * | 2019-03-25 | 2019-06-14 | 中煤科工集团重庆研究院有限公司 | Method and system for automatically calibrating differential pressure zero value of wind speed measurement |
-
2013
- 2013-08-16 CN CN 201320504535 patent/CN203365459U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000741A (en) * | 2018-06-06 | 2018-12-14 | 胡国勇 | Voltage data acquisition device and method are prevented and treated for FSS engineering fire |
| CN109884341A (en) * | 2019-03-25 | 2019-06-14 | 中煤科工集团重庆研究院有限公司 | Method and system for automatically calibrating differential pressure zero value of wind speed measurement |
| CN109884341B (en) * | 2019-03-25 | 2021-08-13 | 中煤科工集团重庆研究院有限公司 | Method and system for automatically calibrating differential pressure zero value of wind speed measurement |
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| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE |
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| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: CCTEG CHONGQING RESEARCH INSTITUTE Co.,Ltd. Address before: 400039 Chongqing Jiulongpo Erlang Branch City Road No. 6 Patentee before: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. |
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