CN2761939Y - Control alarm device of gas safety valve - Google Patents
Control alarm device of gas safety valve Download PDFInfo
- Publication number
- CN2761939Y CN2761939Y CN 200420013261 CN200420013261U CN2761939Y CN 2761939 Y CN2761939 Y CN 2761939Y CN 200420013261 CN200420013261 CN 200420013261 CN 200420013261 U CN200420013261 U CN 200420013261U CN 2761939 Y CN2761939 Y CN 2761939Y
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- CN
- China
- Prior art keywords
- gas
- safety valve
- chip microcomputer
- output terminal
- alarm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a control alarm device of a gas safety valve, which belongs to the application of a single chip computer technology in the control field. The control alarm device of a gas safety valve comprises a gas safety valve, a gas leakage detecting device and an alarm. The utility model is characterized in that the control alarm device of a gas safety valve is provided with a single chip computer control device; the output end of the gas leakage detecting device is connected with the input end of the single chip computer. The output end of the single chip computer is connected with an electromagnetic coil of the gas safety valve and the alarm. The gas safety valve is connected in series in a gas supply pipeline. The utility model receives a switching signal provided by a gas leakage device when gas leakage exceeds a standard. When a gas leakage phenomenon appears, the gas safety valve is closed, gas supply is cut off, and users are prompted by the alarm. The control alarm device of a gas safety valve is widely applied to gas devices, such as a gas water-heater, a gas range, etc. which use pipeline gas and liquefaction gas. The control alarm device of a gas safety valve is used for avoiding casualty accidents caused by gas poisoning.
Description
Technical field belongs to singlechip technology in the control Application for Field.
Before background technique the invention applying date, do not have monolithic processor controlled high sensitivity controllable alarming device of gas safety valve, this device must be in case cut off supply air line when gas leakage occurring and exceeding standard immediately, and give the alarm, and the sensitivity of general gas safety valve is low and have a defective of misoperation.
The purpose of summary of the invention the invention just provides a kind of controllable alarming device of gas safety valve.
The technological scheme that the invention solves its technical problem employing is: comprise safety valves for gas, gas leakage detection device and alarm, has monolithic processor control device, gas leakage detection device output terminal is connected with the single-chip microcomputer input end, the single-chip microcomputer output terminal is connected with safety valves for gas electromagnetic coil and alarm, and safety valves for gas is serially connected in the gas supply pipeline.The single-chip microcomputer output terminal is connected with gas leakage detection device output terminal, the switching signal when exceeding standard in order to receive gas leakage.The single-chip microcomputer output terminal with the Placement of safety valves for gas is: the switching tube base stage that four I/O output terminals of single-chip microcomputer are opposite in twos with four polarity is connected, and the collector electrode of switching tube is connected with the gas safe valve coil.The single-chip microcomputer output terminal with the connecting means of alarm is: the I/O output terminal of single-chip microcomputer is connected with the switching tube base stage, and the collector electrode of switching tube is connected with buzzer one end, and the other end of buzzer is connected with power cathode.Safety valves for gas is serially connected in the gas supply pipeline.
The beneficial effect of the invention is: the switching signal the when gas leakage that the invention receives the gas leakage device to be provided exceeds standard, and when the gas leakage phenomenon occurring,, cut off gas supply and remind the user by alarm by closing safety valves for gas.Be widely used in using gas combustion apparatus such as the gas water-heater of pipeline gas and liquefaction gas and gas range, in order to avoid combustion gas poisoning casualty accident.
Description of drawings Fig. 1 is the electrical schematic diagram of the invention.Single-chip microcomputer is a 8-bit microcontroller among the figure, and model is PIC16C54, T
1, T
2, T
3, T
4Be switching tube, L is the safety valves for gas electromagnetic valve coil, S
1Be gas leakage detection device output switching signal, T
5Be switching tube, SP is an alarm.
Embodiment is referring to the electrical schematic diagram of Fig. 1 the invention.The input end I/O (1) of single-chip microcomputer PIC16C54 and the output terminal S of gas leakage detection device
1Be connected, in order to receive the gas leakage switching signal.Beginning pipe PNP, NPN that the output terminal I/O (2) of single-chip microcomputer, I/O (3), I/O (4), I/O (5) are opposite in twos with four polarity respectively manage T
1, T
2, T
3, T
4Base stage be connected, the collector electrode of switching tube is connected with the electromagnetic coil of safety valves for gas, single-chip microcomputer is by changing the polarity of output pulse signal, control flows is crossed the current direction of the electromagnetic coil of safety valves for gas, the switching of control safety valves for gas.The output terminal I/O (6) and the switch transistor T of single-chip microcomputer
5Input end is connected, and the switching tube output terminal is connected with an end of buzzer, another termination power cathode of buzzer.When single-chip microcomputer receives the switching signal of gas leakage device, promptly cut off safety valves for gas and report to the police.The single-chip microcomputer that the invention relates to, safety valves for gas, gas leakage device are outsourcing piece.
Claims (5)
1, a kind of controllable alarming device of gas safety valve, comprise safety valves for gas, gas leakage detection device and alarm, it is characterized in that having monolithic processor control device, gas leakage detection device output terminal is connected with the single-chip microcomputer input end, the single-chip microcomputer output terminal is connected with safety valves for gas electromagnetic coil and alarm, and safety valves for gas is serially connected in the gas supply pipeline.
2, a kind of controllable alarming device of gas safety valve according to claim 1 is characterized in that the single-chip microcomputer output terminal is connected with gas leakage detection device output terminal, the switching signal when exceeding standard in order to receive gas leakage.
3, a kind of controllable alarming device of gas safety valve according to claim 1, it is characterized in that the single-chip microcomputer output terminal with the Placement of safety valves for gas is: the switching tube base stage that four I/O output terminals of single-chip microcomputer are opposite in twos with four polarity is connected, and the collector electrode of switching tube is connected with the gas safe valve coil.
4, a kind of controllable alarming device of gas safety valve according to claim 1, it is characterized in that the single-chip microcomputer output terminal with the connecting means of alarm is: the I/O output terminal of single-chip microcomputer is connected with the switching tube base stage, the collector electrode of switching tube is connected with buzzer one end, and the other end of buzzer is connected with power cathode.
5, a kind of controllable alarming device of gas safety valve according to claim 1 is characterized in that safety valves for gas is serially connected in the gas supply pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420013261 CN2761939Y (en) | 2004-12-26 | 2004-12-26 | Control alarm device of gas safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420013261 CN2761939Y (en) | 2004-12-26 | 2004-12-26 | Control alarm device of gas safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2761939Y true CN2761939Y (en) | 2006-03-01 |
Family
ID=36095065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420013261 Expired - Fee Related CN2761939Y (en) | 2004-12-26 | 2004-12-26 | Control alarm device of gas safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2761939Y (en) |
-
2004
- 2004-12-26 CN CN 200420013261 patent/CN2761939Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |