High-wind-resistance control method for gas water heating equipment and gas water heating equipment
A gas-fired hot water and control method technology, which is applied to lighting and heating equipment, fluid heaters, etc., can solve the problem of limited wind pressure resistance of single-speed AC fans, insufficient wind pressure resistance of fans, and difficulty in ensuring gas combustion flames in water heaters Stability and other issues, to achieve the effect of improving accuracy and high wind pressure resistance
Pending Publication Date: 2021-10-26
GUANGDONG MACRO GAS APPLIANCE
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Problems solved by technology
The setting winding of the existing single-speed AC fan is to adapt to the best wind speed for the combustion of the whole machine, which leads to the limited wind pressure resistance of the single-speed AC fan; Adding a low-speed winding on the basis of a single-speed AC fan increases the wind pressure resistance of the water heater, so the wind pressure resistance of the fan is insufficient; adding a high-speed winding on the basis of a single-speed AC fan improves the wind pressure resistance of the water heater, but it is difficult to ensure that the gas burns when the water heater is running under a low load. stability of the flame
Method used
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Embodiment 2
[0044] A gas-fired water heater, comprising the high wind resistance control method of the gas-fired water heater described in Embodiment 1.
[0045] It should be noted that the gas water heating equipment is a gas water heater with hot water supply function or a gas wall-hung boiler with both hot water supply and heating functions.
[0046] The gas-fired hot water equipment provided in this embodiment has all the beneficial effects of Embodiment 1, which will not be repeated here. As for the specific structure of the gas hot water equipment, existing or future structures can be adopted, and no detailed description will be given here.
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The invention discloses a high-wind-resistance control method for gas-fired hot water equipment and the gas-fired hot water equipment. The invention discloses the high-wind-resistance control method for the gas-fired hot water, which is characterized in that a main controller of a gas water heater acquires a sampling negative pressure value P of a double-speed alternating current fan with a low-speed gear and a high-speed gear and proportional valve current I fed back by a gas proportional valve; when a wind reducing reference value P3 is larger than or equal to the sampling negative pressure value P and larger than or equal to a wind adding reference value P2 or the proportional valve current I is larger than or equal to a current reference value I0, the working state of the double-speed alternating current fan is kept unchanged; when the sampling negative pressure value P is larger than the wind reducing reference value P3 or the proportional valve current I is smaller than the current reference value I0, the main controller regulates and controls the double-speed alternating current fan to work at a low gear; and when the sampling negative pressure value P is smaller than or equal to the wind adding reference value P2, the main controller regulates and controls the double-speed alternating current fan to work at a high gear. Therefore, flame stability during low-load combustion of the gas-fired hot water is guaranteed, high wind pressure resistance is achieved, and operation of the gas-fired hot water in a severe environment is guaranteed.
Description
technical field [0001] The invention relates to the technical field of gas water heaters, in particular to a high wind resistance control method for gas water heaters and the gas water heaters. Background technique [0002] In current water heaters with an AC fan, the AC fan has two types of single-speed operation and two-speed operation. The setting winding of the existing single-speed AC fan is to adapt to the best wind speed for the combustion of the whole machine, which leads to the limited wind pressure resistance of the single-speed AC fan; Adding a low-speed winding on the basis of a single-speed AC fan increases the wind pressure resistance of the water heater, so the wind pressure resistance of the fan is insufficient; adding a high-speed winding on the basis of a single-speed AC fan improves the wind pressure resistance of the water heater, but it is difficult to ensure that the gas burns when the water heater is running under a low load. The stability of the flam...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F24H9/20
CPCF24H9/2035Y02B10/70
Inventor 艾穗江苏达勇邓海燕何永豪江健
Owner GUANGDONG MACRO GAS APPLIANCE