A method for controlling the temperature of a gas water heater

A temperature control method and technology for gas water heaters, which are used in fluid heaters, lighting and heating equipment, etc., can solve the problems of difficulty in ensuring the stability of the outlet water temperature, damage to the proportional valve, and inadequate adjustment, so as to avoid excessive outlet water temperature. , Improve stability and avoid burns

Active Publication Date: 2021-10-29
NINGBO FOTILE KITCHEN WARE CO LTD
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AI Technical Summary

Problems solved by technology

However, in the case of rapid water flow fluctuations, the proportional valve opening adjustment frequency cannot be well adjusted according to the fluctuation frequency of the water flow, and the adjustment may not be in place or the instantaneous temperature may be too high, making it difficult to ensure the stability of the outlet water temperature. , it will also cause damage to the proportional valve

Method used

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  • A method for controlling the temperature of a gas water heater

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Embodiment Construction

[0015] The present invention will be further described in detail below with reference to the accompanying drawings.

[0016] like figure 1 As shown, the gas water heater temperature control method in this embodiment includes the following steps:

[0017] S1, real-time collection of water flow data into the gas water heater, acquire fluctuation frequency m in unit cycle time, wherein the time length of the unit cycle time is specifically set as needed;

[0018] Specifically, according to the water flow data inflection point acquisition fluctuation frequency, the water flow data inflection point is: the water flow data collected at the time of the water flow data abutment point, and after the inflection point relative to the water flow data The water flow data collected at the time of data acquisition time is larger than the water volume data acquired by the water flow data inflection point; or the water flow data collected at the time of the water flow data abstament point and the ...

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Abstract

The invention relates to a temperature control method of a gas water heater, which is characterized in that: real-time collection of water flow data entering the gas water heater, acquisition of the fluctuation frequency M of the water flow within a unit cycle time, and if M≥M0, the maximum operating current of the proportional valve is reduced I=aI0, while controlling the proportional valve current and fan speed to adjust in real time according to the water flow data; where M0 is the high water flow fluctuation frequency threshold, a is a positive number, 0<a<1, and I0 is the standard maximum operating current of the proportional valve. The gas water heater temperature control method in the present invention can limit the maximum operating power of the gas water heater by reducing the maximum operating current of the proportional valve when the frequency of water flow fluctuations is high, that is, the adjustment range of the proportional valve is limited, and the corresponding limit To ensure the temperature of the water outlet, to avoid scalding the user. At the same time, the variation range of the outlet water temperature is also limited, and the stability of the outlet water temperature is improved.

Description

Technical field [0001] The present invention relates to the field of gas water heaters, and in particular, to a temperature control method of gas water heaters. Background technique [0002] The proportional valve in the gas water heaters typically include a gas dual channel having two openings different, corresponding to each channel is set to control the conduction and off, and the air outlet is connected to the gas double channel, and adjust the air opening. The degree opening adjustment component. When the gas water heater is operating, the solenoid valve action is controlled to open the channel with a small outlet. When the combustion load increases, the solenoid valve action is controlled to open the export larger channel. When the full load is burned, The solenoid valve action is controlled to simultaneously open the two channels simultaneously, i.e., through the control of the solenoid valve on the two channels, the adjustment of the gas water heater can be adjusted. Base...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24H9/20
CPCF24H9/2035
Inventor 金晶段裘铭梁稳周高云
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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