阅读说明：本技术 一种防止燃气泄漏自动保护装置 (Automatic protection device for preventing gas leakage ) 是由 侯钢 于 2019-09-25 设计创作，主要内容包括：一种防止燃气泄漏自动保护装置,包括控制处理器、燃气检测器、燃气流量检测器和切断阀,其要点是所述的燃气检测器装设在燃气具上燃气燃烧器一侧,用于检测燃气是否燃烧,燃气检测器与控制处理器内的接收模块连接。所述的燃气流量检测器装设在燃气管路上,燃气表前阀后,切断阀装设在燃气流量检测器外端的燃气管路上,燃气流量检测器与控制处理器内的燃气流量接收模块连接,切断阀与控制处理器内的执行模块通过导线连接。本发明具有准确性好,无过流、过压、欠压保护阀门&智能燃气计量装置的误报、漏报,具有反应迅速,第一时间切断燃气供应,大大提高了安全性。(The utility model provides a prevent that gas from leaking automatic safety device, includes control treater, gas detector, gas flow detector and trip valve, its main points are the gas detector install gas burner one side on the gas utensil for whether detect the gas and burn, the gas detector is connected with the receiving module in the control treater. Gas flow detector install on the gas pipeline, behind the gas table front valve, the trip valve is installed on the gas pipeline of gas flow detector outer end, gas flow detector is connected with the gas flow receiving module in the control processor, the trip valve passes through the wire with the execution module in the control processor and is connected. The intelligent gas metering device has the advantages of good accuracy, no false alarm and missed alarm of an over-current, over-voltage and under-voltage protection valve and the intelligent gas metering device, quick response, capability of cutting off gas supply at the first time and great improvement on safety.)

1. An automatic protection device for preventing gas leakage comprises a control processor (1), a gas detector (2), a gas flow detector (3) and a cut-off valve (4), and is characterized in that the gas detector (2) is arranged on one side of a gas burner (6) of a gas appliance (5), and the gas detector (2) is connected with a receiving module (7) in the control processor (1); gas flow detector (3) install on gas pipeline (8) of gas utensil (5) gas import, trip valve (4) are installed on gas pipeline (8) of gas flow detector (3) outer end, gas flow detector (3) are connected with gas flow receiving module (9) in control processor (1), execution module (10) in control processor (1) are connected with trip valve (4) through the wire, trip valve (4) are located the inner of gas pipeline (8) upper meter front valve (15).

2. An automatic protection device against gas leakage according to claim 1, characterized in that said control processor (1) incorporates a memory module (11).

3. The automatic protection device for preventing gas leakage according to claim 1, wherein the gas detector (2), the gas flow detector (3) and the control processor (1) are respectively provided with a wireless communication module (12).

4. An automatic gas leakage protection device according to claim 1, wherein said gas detector (2) is mounted on the gas burner (14) side of the gas water heater (13).

Technical Field

The invention belongs to the field of gas safety, and particularly relates to a gas leakage safety automatic protection device.

Background

Because of the convenience and rapidness of the gas, the gas becomes a necessary living article for each household, but the gas brings convenience to people and has potential safety hazards. Once the gas leaks and the explosion accident happens, huge economic loss is brought to the family, and even more serious threat is brought to the life safety of people. Therefore, people develop intelligent gas leakage safety protection devices, and the existing gas leakage safety protection devices mainly comprise the following three types:

1. gas alarm + trip valve. The alarm utilizes gas sensitive probes/elements to respond to single or multiple combustible gas concentrations. The combustible gas detector is of a catalytic type, an infrared optical type or a semiconductor type. When the gas leaks, the stop valve cuts off the gas supply;

2. overcurrent, overvoltage and undervoltage protection valves. By utilizing a built-in over-current, over-voltage and under-voltage protection device, when the gas leaks to generate over-current and over-voltage or the gas in the pipeline is under-voltage, the gas supply is automatically cut off;

3. intelligent gas metering device. The intelligent chip is arranged in the gas metering device, the maximum and minimum gas flow limit values are set, and when the gas flow exceeds or is lower than the set value, the gas metering device acts with a cut-off valve to cut off the gas supply.

The gas leakage safety protection device has the defects of short service life of a gas sensitive element of an alarm, 3 ~ 5 years, poor effectiveness, only suitability for rubber tube falling, setting of upper and lower limits of a gas meter, no setting of a flow range, and cut-off of a valve in the meter, different gas consumption of different household burners, large deviation of the setting range, built-in valves, difficulty in maintenance and the like.

Disclosure of Invention

The invention aims to provide an automatic protection device for preventing gas leakage, which has a simple and reasonable structure and good safety performance and can effectively and timely automatically cut off a combustible gas source when gas leakage occurs.

The technical scheme adopted by the invention is as follows:

an automatic protection device for preventing gas leakage comprises a control processor, a gas detector, a gas flow detector and a cut-off valve, and is characterized in that the gas detector is arranged on one side of a gas burner on a gas appliance and used for detecting whether gas is burnt or not, and the gas detector is connected with a detection receiving module in the control processor; the gas flow detector is arranged on the gas pipeline, and the stop valve is arranged on the gas pipeline at the outer end of the gas flow detector. The gas flow detector is connected with a flow receiving module in the control processor, an execution module in the control processor is connected with the stop valve through a lead, and the stop valve is positioned at the inner end of the front valve on the gas pipeline.

The gas detector can be arranged at one side of a gas burner of the gas water heater and used for detecting whether gas is burnt or not.

And a storage module is arranged in the control processor and used for storing related data.

The gas detector, the gas flow detector and the processor are respectively provided with a wireless communication module.

The working principle of the invention is as follows: the gas flow detector is used for detecting the front end conveying state of gas, the gas detector is used for collecting state signals of a rear end combustion appliance, the control processor is used for comparing/analyzing the front end signals and the rear end signals, judging the gas leakage condition, driving the actuator/the stop valve to cut off gas conveying, and sending out sound and light alarm signals.

The invention has the advantages and effects that:

1. the invention has long service life, the effective service life is 8 ~ 10 years, and the condition that the service life of the core detection element of the gas alarm is 3 ~ 5 years is avoided;

2. the invention has the advantages of good accuracy, no false alarm and no missing alarm of the over-current, over-voltage and under-voltage protection valve and the intelligent gas metering device. The safety of users is protected under the condition of gas leakage;

3. the invention has the advantages that the data can be stored and traced;

4. the intelligent network monitoring system has the advantages that the control processor can be intelligently networked and monitored in a centralized manner;

5. the invention has the advantages of quick response and gas supply cut-off (only manual recovery) at the first time.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another embodiment of the present invention.

Detailed Description