Single-pin ion extinction safety protection system for commercial gas kitchenware and control method

Abstract

The invention discloses a single-pin ion extinction safety protection system for commercial gas kitchenware and a control method. The system comprises an MCU as well as an ignition pin and a high-pressure igniter which are connected, and further comprises a flame detection circuit which is connected between the high-pressure igniter and the MCU and capable of allowing the ignition pin to detect whether flames exist, wherein the common end of the flame detection circuit and the high-pressure igniter is a flame detection signal input terminal a, and an ion generation circuit is in bypass connection with the common end; the high-pressure igniter comprises a high-pressure pack, and a secondary low-pressure end of the high-pressure pack is connected between the ignition pin and the flame detection signal input terminal a. The control method comprises an ignition step and a flame detection step. According to the single-pin ion extinction safety protection system for the commercial gas kitchenware and the control method, safety of the gas kitchenware can be effectively ensured, the ignition pin has the flame detection function, and the system has simple structure, is very convenient to assemble and avoids tingling electricity when a cook uses the gas kitchenware.

Description

technical field [0001] The invention relates to the field of gas ignition, in particular to a safety protection system and control method for single-needle ion flameout of commercial gas kitchen utensils. Background technique [0002] At present, the flameout protection technology of commercial gas cooker ignition controllers and commercial gas steam cabinet ignition controllers on the market is a simple application of ion detection technology for household gas appliances, and is not suitable for commercial use environments. [0003] The high-voltage ignition energy of the commercial gas kitchen appliance ignition controller is two or three times larger than that of the household one, and the probability of damage and interference to the controller is much greater; the commercial gas kitchen appliance is used in a humid environment, and the ion current is easy to leak, resulting in low flame detection sensitivity and false flame signals. ;The flame detection needle and the h...

AI Technical Summary

Problems solved by technology

[0003] The high-voltage ignition energy of the commercial gas kitchen appliance ignition controller is two or three times larger than that of the household one, and the probability of damage and interference to the controller is much greater; the commercial gas kitchen appliance is used in a humid environment, and the ion current is easy to leak, resulting in low flame detection sensitivity and false flame signals. ;The flame detection needle and the high-voltage ignition needle are separated independently, and there must be a large separation distance during installation, otherwise the ignition high-voltage creepage to the flame detection needle will cause damage to or interference with the ignition control circuit, resulting in a large amount of gas leakage and safety accidents ; or the flame detection needle and the high-voltage ignition point form a flame detection circuit, instead of forming a detection return with the burner shell ground, the ignition high pressure is not well released during ignition, so that the high pressure is transmitted to the cook along the combustion flame through the frying pan, causing numbness electric feeling

[0004] The flame detection circuit of commercial gas ignition controllers in the market is transplanted from the flame detection circuit of household gas appliances, resulting in unstable or damaged control circuit control, which affects the normal use of commercial kitchen utensils, so that current commercial kitchen utensils are unwilling to use ion flameout This will bring serious safety problems to commercial kitchen utensils, and local gas associations cannot enforce the national safety management of gas kitchen utensils in the hotel industry.

[0005] Therefore, it is necessary to design a single-pin ion flameout safety protection circuit for commercial kitchen utensils to solve problems such as troublesome installation, high voltage damage to the ignition controller, chef hemp electric and gas kitchen utensils, etc.

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