Ignition control method for gas water heater and wall-hung boiler adaptive to flue pressure change

Abstract

The invention discloses an ignition control method for a gas water heater and a wall-hanging stove with adaptive flue pressure change. The ignition control method for the water heater and the wall-hanging stove with the adaptive flue pressure change includes the following steps that S1, when the gas water heater or the wall-hanging stove is on standby, a hot water tap is turned on, a fan is started, and an actual fan rotation speed is obtained; S2, a size relation between the actual fan rotation speed and a theoretical fan rotation speed is judged, and the theoretical fan rotation speed is a fan rotation speed when external pressure of the flue of the gas water heater or the wall-hanging stove is equal to internal pressure of the flue, the actual fan rotation speed is the fan rotation speed when the external pressure of the flue of the gas water heater or the wall-hanging stove is not equal to the internal pressure of the flue; and S3, the fan rotation speed and ignition logic of the gas water heater or the wall-hanging stove are adjusted according to the judgment result of S2, so that the gas water heater or the wall-hanging stove can be ignited and operated normally; and the rotation speed of the fan can be compensated quickly according to blockage of the flue or the external wind pressure and a high and reliable ignition success rate is realized.

Description

technical field [0001] The invention relates to the technical field of water heaters and wall-hung boilers, in particular to an ignition control method for gas water heaters and wall-hung boilers adaptive to flue pressure changes and a control method for wall-hung boilers to adapt to flue pressure changes. Background technique [0002] Gas water heaters or wall-hung boilers have become necessary heating equipment for families and have been widely used. With more and more high-rise residential buildings, gas water heaters or wall-hung boilers are generally installed on living balconies, and gas water heaters or wall-hung boilers are increasingly affected by floor wind pressure during use. [0003] The ignition logic of existing gas water heaters or wall-hung boilers has only one switch value, and there is no compensation for the fan speed. Therefore, when the external wind pressure is too large, the air is poured back, or the flue is blocked, it will cause non-combustible fir...

AI Technical Summary

Problems solved by technology

[0003] The ignition logic of existing gas water heaters or wall-hung boilers has only one switch value, and there is no compensation for the fan speed. Therefore, when the external wind pressure is too large, the air is poured back, or the flue is blocked, it will cause non-combustible fire, ignition and flameout, ignition difficulty, ignition and deflagration, etc. Problems, causing users to be unable to use water heaters or wall-hung boilers, reducing the adaptability of gas water heaters or wall-hung boilers

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