CN203350272U - Automatic zero clearing module used for detecting wind speed and wind direction - Google Patents
Automatic zero clearing module used for detecting wind speed and wind direction Download PDFInfo
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- CN203350272U CN203350272U CN 201320502988 CN201320502988U CN203350272U CN 203350272 U CN203350272 U CN 203350272U CN 201320502988 CN201320502988 CN 201320502988 CN 201320502988 U CN201320502988 U CN 201320502988U CN 203350272 U CN203350272 U CN 203350272U
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Abstract
The utility model discloses an automatic zero clearing module used for detecting a wind speed and a wind direction, comprising an automatic zero clearing assembly and a slight differential pressure element, wherein the slight differential pressure element is provided with a sampling port I and a sampling port II; the automatic zero clearing assembly is provided with an interface I, an interface II and an interface III; the interface I and the interface III are communicated with the interface II in an electronic control drive switching mode or are closed. According to the automatic zero clearing module used for detecting the wind speed and the wind direction, the automatic zero clearing assembly structure is adopted, the module is suitable for measuring the wind speed and the wind direction of occasions with extremely poor conditions, such as a coal mine, the measuring precision and the stability are higher, the function of zero correction is realized, the structure is simple, the machining and assembly are easy, the use cycle is longer, the use cost is reduced, the delaying nonlinear characteristic after a diffused silicon pressure sensor works in full range is eliminated, and the zero variable quantity is smaller than 0.1 Pa within the range of 0-40DEG C after the automatic zero clearing module is used, and stable measurement under 0.1 Pa can be realized.
Description
Technical field
The utility model relates to a kind of safe auxiliary device be applicable under coal mine, particularly a kind of automatic clear module detected for wind speed, wind direction.
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 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 automatic clear module detected for wind speed, wind direction, be applicable to extremely severe occasion measuring wind and the wind directions of condition such as colliery, there is higher measuring accuracy and stability, have the zero point correction function, simple in structure, process and assemble is easy, and life cycle is longer, save use cost.
The utility model content
In view of this, the utility model provides a kind of automatic clear module detected for wind speed, wind direction, be applicable to extremely severe occasion measuring wind and the wind directions of condition such as colliery, there is higher measuring accuracy and stability, have the zero point correction function, simple in structure, process and assemble is easy, and life cycle is longer, save use cost.
The automatic clear module detected for wind speed, wind direction of the present utility model, the automatic clear module is provided with interface I, interface II and interface III, described interface I is communicated in probe high-pressure sampling mouth, the interface II is communicated in the sample tap I of micro-pressure-difference element, and the interface III is communicated in the sample tap II of micro-pressure-difference element; Described sample tap II also is communicated in probe low pressure sample tap, between described interface I and interface III, can be communicated with or close with the interface II by the mode of automatically controlled driving switching.
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 receive external command, slightly the pressure reduction element pressure difference signal and 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, automatic control system also comprises the control command for receiving CPU (central processing unit) and sends the alarm unit of alerting signal;
Further, described CPU (central processing unit), slight pressure reduction 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 probe low pressure sample tap, sample tap II and interface III.
The beneficial effects of the utility model: of the present utility model for wind speed, the automatic clear module that wind direction detects, module adopts the structure of automatic clear assembly, be applicable to extremely severe occasion measuring wind and the wind directions of condition such as colliery, measuring accuracy and stability are higher, there is the zero point correction function, simple in structure, process and assemble is easy, and life cycle is longer, save use cost, Hysteresis Nonlinear characteristic after the work of elimination diffusion silicon pressure sensor full scale, through using, 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.
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 detection method process flow diagram of the present utility model.
Embodiment
Fig. 1 is the utility model theory diagram; As shown in the figure: the automatic clear module detected for wind speed, wind direction of the present utility model, the automatic clear module is provided with interface I 61, interface II 62 and interface III 63, described interface I 61 is communicated in probe 1 high-pressure sampling mouth 11, interface II 62 is communicated in the sample tap I 81 of micro-pressure-difference element 8, and interface III 63 is communicated in the sample tap II 82 of micro-pressure-difference element; Described sample tap II 82 also is communicated in probe 1 low pressure sample tap 12, between described interface I 61 and interface III 63, can be communicated with or close with interface II 62 by the mode of automatically controlled driving switching, micro-pressure-difference element 8 is existing micro-pressure sensor, for measuring wind, the conventional element of wind direction moral, do not repeat them here;
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, realizes automatic clear; Conducting between interface I 61 and interface II 62, sample tap I 81 and sample tap II 82 respectively with probe high-pressure sampling mouth and the conducting of probe low pressure sample tap, 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, and the sample tap I 81 of pressure reduction element 8 is identical with sample tap II 82 pressure slightly, belongs to the state conducting of making zero.
In the present embodiment, 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 receive external command, slightly pressure reduction element 8 pressure difference signal and to the control circuit 7 output control commands of two-bit triplet solenoid valve 6; Slightly the pressure difference signal of pressure reduction 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;
Data output unit 4, for the command signal that receives CPU (central processing unit) 3 and export data message; This data message generally comprises the wind speed of demonstration, display screen of wind direction information etc.
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.
In the present embodiment, described CPU (central processing unit), slight pressure reduction 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.
Fig. 2 is detection method process flow diagram of the present utility model, and the utility model is used for the step of measuring wind:
A. opening device, power on and initialization, and read slight pressure reduction 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 element 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, making the distinguished and admirable differential pressure caused of slight pressure reduction element testing, and differential pressure signal is converted to electric signal delivers to CPU (central processing unit), calculating 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, need pressure be introduced to interface I and interface II by the impulse part.
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 (4)
1. the automatic clear module detected for wind speed, wind direction, it is characterized in that: the automatic clear module is provided with interface I, interface II and interface III, described interface I is communicated in probe high-pressure sampling mouth, the interface II is communicated in the sample tap I of micro-pressure-difference element, and the interface III is communicated in the sample tap II of micro-pressure-difference element; Described sample tap II also is communicated in probe low pressure sample tap, between described interface I and interface III, can be communicated with or close with the interface II by the mode of automatically controlled driving switching.
2. the automatic clear module detected for wind speed, wind direction according to claim 1, 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 receive external command, slightly the pressure reduction element pressure difference signal and 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.
3. the automatic clear module detected for wind speed, wind direction according to claim 2, 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.
4. the automatic clear module detected for wind speed, wind direction according to claim 3, it is characterized in that: described CPU (central processing unit), slight pressure reduction 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320502988 CN203350272U (en) | 2013-08-16 | 2013-08-16 | Automatic zero clearing module used for detecting wind speed and wind direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320502988 CN203350272U (en) | 2013-08-16 | 2013-08-16 | Automatic zero clearing module used for detecting wind speed and wind direction |
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| Publication Number | Publication Date |
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| CN203350272U true CN203350272U (en) | 2013-12-18 |
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| CN 201320502988 Expired - Lifetime CN203350272U (en) | 2013-08-16 | 2013-08-16 | Automatic zero clearing module used for detecting wind speed and wind direction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 201320502988 patent/CN203350272U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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 |
|
| 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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| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
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| CX01 | Expiry of patent term |