Kitchen fire extinguishing device adopting thermocouple temperature sensing probe

Abstract

The invention discloses a kitchen fire extinguishing device adopting a thermocouple temperature sensing probe. The kitchen fire extinguishing device comprises a temperature probe, a nozzle and control equipment, wherein the temperature probe is a thermocouple, and is connected with the control equipment through a signal wire; and the temperature probe is arranged above a cooking bench. The kitchen fire extinguishing device disclosed by the invention is high in fire extinguishing accuracy; and the error spraying phenomenon is effectively prevented.

Description

technical field [0001] The invention relates to the technical field of fire protection, in particular to a kitchen fire extinguishing device using a thermocouple temperature sensing probe. Background technique [0002] The detectors of the current kitchen fire extinguishing device and the activation of the fire extinguishing device generally adopt a temperature-sensitive fusible sheet and a mechanical activation method. A certain temperature generated when the kitchen stove is on fire causes the detector (temperature-sensitive fusible sheet) arranged above the stove to melt and disconnect, and then the wire rope connected to the detector is loosened, the automatic mechanical release device operates, and the nitrogen gas passes through the decompression device Enter the medicine tank with a rated pressure of 7bar, press out the medicine from the medicine tank under the action of the liquid surface pressure and spray it to the stove through the fire extinguishing pipe, and at ...

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Problems solved by technology

[0003] Although this technology is feasible abroad, there is a problem with this temperature sensing and starting method under Chinese kitchen conditions and the cooking method of Chinese chefs, that is, the normal open flame on the stove will often cause the kitchen fire extinguishing device to burn. Malfunction, and can not stop spraying, causing unnecessary economic losses

For example, a chef cooks vegetables on a high fire, then lifts the pot out of the stove and puts it in a pot, and then washes the pot. The high temperature of the open flame on the stove for 15-20 seconds makes the temperature at the temperature sensor reach 180°C, and the fusible metal sheet immediately melts and starts spraying to extinguish the fire. As a result, false spraying will occur, and all the cooking pots and fryers on the stove will suffer. Not only will the cooking materials suffer economic losses, but more importantly, the normal operation of the restaurant will be seriously affected; according to Shanghai fire experts and catering industry Statistics show that the misspray rate of existing traditional kitchen fire extinguishing devices in Shanghai is close to 20%, the accuracy of kitchen fire extinguishing devices is very low, and the direct and indirect economic losses are huge

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