Gas water heater with CH4, CO and fire monitoring device and alarm function

Abstract

The invention discloses a gas water heater with a CH4, CO and fire monitoring device and an alarm function. The gas water heater comprises a control processor and an information detection device in communication with the control processor. The information detection device at least comprises a gas sensor and a smoke sensor, the gas sensor is used for detecting gas concentration information, and the smoke sensor is used for detecting fire information; the control processor is respectively connected with a gas valve and a relay and used for controlling the gas valve to be off when concentration of gas detected by the gas sensor is out of limits and controlling the gas valve and the relay to be off when receiving fire information detected by the smoke sensor. The gas water heater is capable of not only effectively dealing with conditions of gas leakage, insufficient combustion and overhigh CO concentration and alarming but also timely alarming dangerous conditions of environmental fires and self burning through.

Description

technical field [0001] The present invention relates to the field of gas water heaters, more specifically, to a 4 , CO, fire monitoring device and alarm function gas water heater. Background technique [0002] Ordinary gas water heaters generally have harmful gas alarm devices. By detecting the combustible gas CH 4 When the concentration of harmful gas exceeds the standard, it will alarm in time and remove the harmful gas, so as to prevent gas leakage and insufficient combustion, which will cause CO poisoning. [0003] There are two main ways for gas water heaters to detect and alarm harmful gases: one is that the water heater detects CO, CH in the air through a gas detection and alarm device. 4 When the concentration exceeds the standard, an alarm will be issued and the air valve will be cut off. The fan will keep blowing at the maximum wind speed, and the CO, CH 4 Exhaust chamber; the other is a gas detection alarm device to detect CO, CH in the air 4 When the concentr...

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Problems solved by technology

[0007] 2. The above-mentioned harmful gas detection and alarm device is installed on the roof or the side plate of the water heater host, although it can detect CH 4 , CO concentration, but this detection alarm has a certain delay, the longer the delay time, the greater the harmful gas hazard in the environment where the water heater is located

[0008] For the first problem, there are currently gas water heaters that integrate harmful gas detection alarms and other monitoring alarms such as excessive temperature and leakage, but these detection alarms can only alarm and protect harmful gases and the hazards of the water heater itself.

The problem of fire in the environment is still unsolvable, but the fire hazard in the external environmental hazards is the most serious threat to water heaters and life and property

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