CN203118173U - Gas leak hunting detection device - Google Patents
Gas leak hunting detection device Download PDFInfo
- Publication number
- CN203118173U CN203118173U CN 201220724253 CN201220724253U CN203118173U CN 203118173 U CN203118173 U CN 203118173U CN 201220724253 CN201220724253 CN 201220724253 CN 201220724253 U CN201220724253 U CN 201220724253U CN 203118173 U CN203118173 U CN 203118173U
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- solenoid valve
- chip microcomputer
- gas
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Abstract
The utility model discloses a gas leak hunting detection device. The gas leak hunting detection device comprises a single-chip microcomputer, a gas-sensitive sensor, an alarm unit, a solenoid valve driving unit, a solenoid valve, a driver and an LED display, wherein the gas-sensitive sensor is connected with an input end of the single-chip microcomputer, an output end of the single-chip microcomputer is respectively connected with the alarm unit, the driver and the solenoid valve driving unit, an output end of the driver is connected with the LED display, and the solenoid valve driving unit is connected with the solenoid valve. By utilizing the semiconductor gas-sensitive sensor, indoor gas concentration can be detected in real time through adsorption of inflammable gas in a surrounding environment, and the gas concentration is displayed through the LED display in real time; when the gas concentration in the environment reaches to a safety threshold value, acousto-optic alarm is carried out, simultaneously, the single-chip microcomputer sends a signal to the solenoid valve driving unit to close a gas pipeline through the solenoid valve.
Description
Technical field
The utility model relates to applied technical field, is specifically related to a kind of coal gas side leakage pick-up unit.
Background technology
Coal gas has become people's energy commonly used of living, and the gas leak event happens occasionally, and has brought a lot of hidden danger for people's personal safety and property safety, becomes pressing for of people so how to guard against gas poisoning with exploding.At present, general gas leak detector function singleness, or necessary hand-reset valve system, stability is low; And large-scale supervisory system is expensive, needs special technician to manage, and is not suitable for medium-sized and small enterprises and family.
Summary of the invention
At defective and the deficiency of prior art, the purpose of this utility model is to provide a kind of coal gas side leakage pick-up unit.
In order to realize above-mentioned task, the utility model is taked following technical solution:
A kind of coal gas side leakage pick-up unit, comprise single-chip microcomputer, gas sensor, alarm unit, solenoid-driven unit, solenoid valve, driver and light-emitting diode display, wherein, gas sensor connects the input end of single-chip microcomputer, the output terminal of single-chip microcomputer connects alarm unit, driver and solenoid-driven unit respectively, output end of driver connects light-emitting diode display, and the solenoid-driven unit connects solenoid valve.
Other technologies characteristics of the present utility model:
Described single-chip microcomputer adopts the AT89C51 single-chip microcomputer.
Described gas sensor adopts MQ306A type semiconductor gas sensor.
Described driver adopts the MAX7219 driver.
Described solenoid-driven unit comprises the ULN2003 chip.
Described solenoid valve adopts BZS-1K type solenoid valve.
Described alarm unit comprises hummer and LED lamp.
The utility model utilizes semiconductor gas sensor, by the absorption to the surrounding environment inflammable gas, detects gas concentration in the room in real time, and by light-emitting diode display gas concentration is shown in real time.When gas concentration reaches safe threshold values in the environment, carry out sound and light alarm, the while single-chip microcomputer sends signal and gives the solenoid-driven unit by the closed electromagnetic valve gas piping.
Description of drawings
Fig. 1 is annexation synoptic diagram of the present utility model.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Embodiment
Defer to technique scheme, as shown in Figure 1, a kind of coal gas side leakage pick-up unit, comprise single-chip microcomputer, gas sensor, alarm unit, solenoid-driven unit, solenoid valve, driver and light-emitting diode display, wherein, gas sensor connects the input end of single-chip microcomputer, and the output terminal of single-chip microcomputer connects alarm unit, driver and solenoid-driven unit respectively, output end of driver connects light-emitting diode display, and the solenoid-driven unit connects solenoid valve.
In the utility model, single-chip microcomputer adopts the AT89C51 single-chip microcomputer, and this single-chip microcomputer is a kind of low-voltage with 4K byte FLASH storer, high-performance CMOS 8-bit microprocessor, and the erasable read-only memory in this single-chip microcomputer can repetitive erasing 1000 times.This device adopts ATMEL high density nonvolatile memory manufacturing technology to make, and compatible mutually with MCS-51 instruction set and the output pin of industrial standard, single-chip microcomputer is mainly for the treatment of sensor signal, control output and warning etc.
Described gas sensor adopts MQ306A type semiconductor gas sensor, this sensor utilization makes physical propertys such as semi-conductive conductance change to detect composition and the concentration of gas to be measured when contacting with its gas, inflammable gas had high sensitivity and fast-response, for detection of the concentration information of coal gas in the environment.
Described driver adopts the MAX7219 driver, is a kind of integrated serial I/O common cathode display driver, and its connects the 7 piece of digital LED demonstration of microprocessor and 8 bit digital, also can connection strap line chart display or 64 LED independently.
Described solenoid-driven unit comprises the ULN2003 chip, this chip is a kind of high withstand voltage, big electric current Darlington array, characteristics such as have current gain height, operating voltage height, temperature range is wide, carrying load ability is strong, be adapted to each generic request at a high speed, powerful drive unit.
Described solenoid valve adopts BZS-1K type solenoid valve, and this solenoid valve is installed on the coal gas delivery outlet, is used for cutting off gas supply under dangerous situation.
Described alarm unit comprises hummer and LED lamp.
During the work of this device, sensor detects the gas concentration of current environment, and detected gas concentration information passed to single-chip microcomputer, single-chip microcomputer compares the safe threshold values of this data value and setting, when the gas concentration that collects during less than setting value, device is in normal mode, and light-emitting diode display shows current gas concentration; When the gas concentration of sampling during greater than setting value, single-chip microcomputer sends instruction to alarm unit, carries out sound and light alarm; Simultaneously single-chip microcomputer cuts out solenoid valve by the solenoid-driven unit, has so just realized under coal gas side leakage situation instant alarming and closes coal gas and export to guarantee user security.
Claims (7)
1. coal gas side leakage pick-up unit, it is characterized in that, comprise single-chip microcomputer, gas sensor, alarm unit, solenoid-driven unit, solenoid valve, driver and light-emitting diode display, wherein, gas sensor connects the input end of single-chip microcomputer, the output terminal of single-chip microcomputer connects alarm unit, driver and solenoid-driven unit respectively, and output end of driver connects light-emitting diode display, and the solenoid-driven unit connects solenoid valve.
2. coal gas side leakage pick-up unit as claimed in claim 1 is characterized in that, described single-chip microcomputer adopts the AT89C51 single-chip microcomputer.
3. coal gas side leakage pick-up unit as claimed in claim 1 is characterized in that, described gas sensor adopts MQ306A type semiconductor gas sensor.
4. coal gas side leakage pick-up unit as claimed in claim 1 is characterized in that, described driver adopts the MAX7219 driver.
5. coal gas side leakage pick-up unit as claimed in claim 1 is characterized in that, described solenoid-driven unit comprises the ULN2003 chip.
6. coal gas side leakage pick-up unit as claimed in claim 1 is characterized in that, described solenoid valve adopts BZS-1K type solenoid valve.
7. coal gas side leakage pick-up unit as claimed in claim 1 is characterized in that, described alarm unit comprises hummer and LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724253 CN203118173U (en) | 2012-12-25 | 2012-12-25 | Gas leak hunting detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724253 CN203118173U (en) | 2012-12-25 | 2012-12-25 | Gas leak hunting detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118173U true CN203118173U (en) | 2013-08-07 |
Family
ID=48898497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724253 Expired - Fee Related CN203118173U (en) | 2012-12-25 | 2012-12-25 | Gas leak hunting detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089983A (en) * | 2014-07-22 | 2014-10-08 | 苏州南斗专利服务有限公司 | Coal gas concentration monitoring system based on single chip microprocessor |
-
2012
- 2012-12-25 CN CN 201220724253 patent/CN203118173U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089983A (en) * | 2014-07-22 | 2014-10-08 | 苏州南斗专利服务有限公司 | Coal gas concentration monitoring system based on single chip microprocessor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20131225 |