CN202485852U - Negative pressure sensor for coal mine pipelines - Google Patents
Negative pressure sensor for coal mine pipelines Download PDFInfo
- Publication number
- CN202485852U CN202485852U CN2011205160225U CN201120516022U CN202485852U CN 202485852 U CN202485852 U CN 202485852U CN 2011205160225 U CN2011205160225 U CN 2011205160225U CN 201120516022 U CN201120516022 U CN 201120516022U CN 202485852 U CN202485852 U CN 202485852U
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- negative pressure
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- Measuring Fluid Pressure (AREA)
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Abstract
The utility model relates to equipment for coal mines and provides a negative pressure sensor for coal mine pipelines. The negative pressure sensor for the coal mine pipelines comprises a central processing unit (CPU), a power supply circuit for supplying electric power to the sensor, a key control circuit, a signal output circuit, an amplifying circuit, an infrared connector remote control circuit, an acousto-optic alarm circuit and a digital display circuit. The negative pressure sensor for the coal mine pipelines is characterized in that the CPU is connected with the acousto-optic alarm circuit, the digital display circuit and the signal output circuit; the infrared connector remote control circuit is connected with the key control circuit, reverts various key instructions from the key control circuit to serial infrared coding signals, and sends out the serial infrared coding signals; a receiver converts the serial infrared coding signals to serial electrical signals and transmits the serial electrical signals to the CPU for processing; and various control functions can be completed. By utilizing a novel single chip microcomputer and the high integrated digital circuit, the negative pressure sensor for the coal mine pipelines has a simple circuit structure and reliable performance, and is convenient to maintain and debug.
Description
Technical field
The utility model relates to the colliery and uses device, is specifically related to a kind of colliery pipeline and uses negative pressure transducer.
Background technology
Mine safety is China's problem demanding prompt solution all the time, and Coal Production is faced with many difficulties, and, MP imperfection low like mechanization degree, technical merit are low etc.; These all are the hidden danger of mine safety, and can there be flammable explosive gas in the colliery in process of production, and these flammable explosive gas are main threats of mine safety problem; In recent years; The mine safety explosion accident frequently takes place, and when having caused huge economy and personal casualty loss, has also caused the pollution of environment; Along with gas detection sensor applies in the Coal Production, Safety of Coal Mine Production gets a new look to a certain extent.Under coal mine, wind can either provide enough fresh airs to mine, creates necessary condition of work, guarantees the needs of personnel in the pit to oxygen, can water down various harmful gases such as methane, CO again, reduces downhole temperature, guarantees Safety of Coal Mine Production.Grasp the situation of change that the down-hole wind speed is an air quantity timely and accurately, to trouble-saving generation with guarantee that Safety of Coal Mine Production has crucial meaning.During the harmful gas robotization detected under coal mine, the ventilation negative pressure also was one of important detected parameters.
The utility model content
The utility model technical matters to be solved is to provide a kind of intellectuality, the accurate colliery of measurement pipeline to use negative pressure transducer.
The utility model technical matters to be solved adopts following technical scheme to realize,
A kind of colliery pipeline is used negative pressure transducer; Comprise CPU, be the infrared joint circuit of feed circuit, key control circuit, signal output apparatus, amplifying circuit, remote control, sound light alarming circuit and the digital display circuit of sensor power supply; It is characterized in that: described central processing unit controls connects sound light alarming circuit, digital display circuit and signal output apparatus; The infrared joint circuit of described remote control is connected with key control circuit; The infrared joint circuit of remote control converts the various key commands of key control circuit to serial infrared light coded signal and sends; Receiver converts serial infrared light coded signal to serial electric signal and send CPU to handle, and accomplishes various control function;
Described amplifying circuit comprises a probe; Described probe is made up of pressure drag diffuse si full-bridge circuit; The blast variation converts analog voltage signal into through bridge circuit, after amplifier is amplified, directly sends into central processing unit for processing, and CPU is with the signal that collects numeral demonstration on the spot after treatment; And convert standard signal into and be transferred to associate device through signal output apparatus, realize remote centralized control;
Described CPU is made up of single-chip microcomputer.
The pressure detection of the utility model adopts piezoresistive strain dynamometry principle; Probe is made up of pressure drag diffuse si full-bridge circuit; The blast variation converts analog voltage signal into through bridge circuit, after amplifier is amplified, directly sends into single-chip microcomputer and handles, and single-chip microcomputer is with the signal that collects numeral demonstration on the spot after treatment; And convert standard signal into and be transferred to associate device, realize remote centralized control; The sensor construction design has taken into full account the environmental baseline of rugged surroundings, is all taking effective measures aspect structural strength and the water resistance, guarantees the work that sensor can be reliable and stable.
The beneficial effect of the utility model is:
(1), the probe that adopts diffuse si technology to process, precision is high, long service life, anti-instantaneous pressure impact capacity is strong, moistureproof dustproof anticorrosive erosion, instrument performance is more stable;
(2), adopt new single chip microcomputer and high integrated digital circuit, make circuit structure simple, dependable performance is convenient to maintenance and debugging;
(3), adopt functions such as infrared remote control adjustment zero point, sensitivity, and possess the fault self-checking function, adjustment is easy;
(4), shell adopts the stainless steel material design, strengthened the shock resistance and the resistance to corrosion of sensor.
Description of drawings
Fig. 1 is the utility model functional-block diagram;
Fig. 2 is the utility model CPU circuit theory diagrams;
Fig. 3 is the utility model amplifying circuit schematic diagram;
Fig. 4 is the infrared joint circuit theory diagrams of the utility model remote control;
Fig. 5 is the utility model key control circuit schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
Extremely shown in Figure 5 like Fig. 1; The colliery pipeline is used negative pressure transducer; Comprise CPU, be the infrared joint circuit of feed circuit, key control circuit, signal output apparatus, amplifying circuit, remote control, sound light alarming circuit and the digital display circuit of sensor power supply; Central processing unit controls connects sound light alarming circuit, digital display circuit and signal output apparatus; The infrared joint circuit of remote control is connected with key control circuit; The infrared joint circuit of remote control converts the various key commands of key control circuit to serial infrared light coded signal and sends, and receiver converts serial infrared light coded signal to serial electric signal and send CPU to handle, and accomplishes various control function;
Amplifying circuit comprises a probe; Probe is made up of pressure drag diffuse si full-bridge circuit, and the blast variation converts analog voltage signal into through bridge circuit, after amplifier is amplified, directly sends into central processing unit for processing; CPU is with the signal that collects numeral demonstration on the spot after treatment; And convert standard signal into and be transferred to associate device through signal output apparatus, realizing remote centralized control, CPU is made up of single-chip microcomputer.
The pressure detection of the utility model adopts piezoresistive strain dynamometry principle; Probe is made up of pressure drag diffuse si full-bridge circuit; The blast variation converts analog voltage signal into through bridge circuit, after amplifier is amplified, directly sends into single-chip microcomputer and handles, and single-chip microcomputer is with the signal that collects numeral demonstration on the spot after treatment; And convert standard signal into and be transferred to associate device, realize remote centralized control; The sensor construction design has taken into full account the environmental baseline of rugged surroundings, is all taking effective measures aspect structural strength and the water resistance, guarantees the work that sensor can be reliable and stable.
More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (3)
1. the colliery pipeline is used negative pressure transducer; Comprise CPU, be the infrared joint circuit of feed circuit, key control circuit, signal output apparatus, amplifying circuit, remote control, sound light alarming circuit and the digital display circuit of sensor power supply; It is characterized in that: described central processing unit controls connects sound light alarming circuit, digital display circuit and signal output apparatus; The infrared joint circuit of described remote control is connected with key control circuit; The infrared joint circuit of remote control converts the various key commands of key control circuit to serial infrared light coded signal and sends; Receiver converts serial infrared light coded signal to serial electric signal and send CPU to handle, and accomplishes various control function.
2. colliery according to claim 1 pipeline is used negative pressure transducer; It is characterized in that: described amplifying circuit comprises a probe, and described probe is made up of pressure drag diffuse si full-bridge circuit, and the blast variation converts analog voltage signal into through bridge circuit;, amplifier directly sends into central processing unit for processing after amplifying; CPU with the signal that collects after treatment on the spot numeral show, and convert standard signal into and be transferred to associate device through signal output apparatus, realize remote centralized control.
3. colliery according to claim 1 pipeline is used negative pressure transducer, it is characterized in that: described CPU is made up of single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205160225U CN202485852U (en) | 2011-12-12 | 2011-12-12 | Negative pressure sensor for coal mine pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205160225U CN202485852U (en) | 2011-12-12 | 2011-12-12 | Negative pressure sensor for coal mine pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485852U true CN202485852U (en) | 2012-10-10 |
Family
ID=46960267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205160225U Expired - Fee Related CN202485852U (en) | 2011-12-12 | 2011-12-12 | Negative pressure sensor for coal mine pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202485852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649125A (en) * | 2020-01-02 | 2021-04-13 | 青雀(苏州)信息技术有限公司 | Negative pressure sensor system and negative pressure control method thereof |
-
2011
- 2011-12-12 CN CN2011205160225U patent/CN202485852U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112649125A (en) * | 2020-01-02 | 2021-04-13 | 青雀(苏州)信息技术有限公司 | Negative pressure sensor system and negative pressure control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |