Gas water heater temperature control method

A temperature control method and technology for gas water heaters, which are used in fluid heaters, lighting and heating equipment, etc., can solve problems such as insufficient adjustment, difficulty in ensuring the stability of water temperature, proportional valve damage, etc., so as to avoid burns and avoid water The effect of high temperature and improved stability

Active Publication Date: 2020-07-17
NINGBO FOTILE KITCHEN WARE CO LTD
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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 adjustm

Method used

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  • Gas water heater temperature control method

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[0015] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.

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

[0017] S1. Collect the water flow data entering the gas water heater in real time, and obtain the fluctuation frequency M of the water flow within the unit cycle time. The duration of the unit cycle time is specifically set according to the needs;

[0018] Specifically, the fluctuation frequency of the water flow within a unit period can be obtained according to the inflection point of the water flow data. The inflection point of the water flow data is: the water flow data collected at the time of data collection relative to the water flow data inflection point and relative to the water flow data after the inflection point The water flow data collected at a data collection time are all greater than the water flow data collected ...

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Abstract

The invention relates to a gas water heater temperature control method which is characterized by comprising the following steps: collecting the data of the water flow rate entering a gas water heaterin real time, obtaining the fluctuating frequency M of the water flow rate within unit periodic time, if M is equal to or greater than M0, reducing the maximum working current I=aI0 of a proportionalvalve, and at the same time, controlling the current of the proportional valve and the rotating speed of a fan to be adjusted in real time according to the data of the water flow rate, wherein M0 is the high water flow rate fluctuating frequency threshold value, a is a positive number and is greater than 0 and less than 1, and I0 is the standard maximum working current of the proportional valve. According to the gas water heater temperature control method, on the condition that the water flow rate fluctuating frequency is high, the maximum working power of the gas water heater can be limited through reducing the maximum working current of the proportional valve, so that the adjusting amplitude of the proportional valve is limited, the water-out temperature is also limited, a user is prevented from being scalded, and at the same time, the variation amplitude of the water-out temperature is also limited, and the stability of the water-out temperature is improved.

Description

technical field [0001] The invention relates to the technical field of gas water heaters, in particular to a method for controlling the temperature of a gas water heater. Background technique [0002] The proportional valve in a gas water heater usually includes two gas double channels with different opening diameters, a solenoid valve set corresponding to each channel to control the conduction and closing of the channel, a gas outlet connected to the gas double channel, and adjusting the opening of the gas outlet. degree of opening adjustment components. When the gas water heater is working, when the combustion load is small, the solenoid valve is controlled to open the channel with a small outlet; when the combustion load increases, the solenoid valve is controlled to open the channel with a large outlet; Control the action of the solenoid valve to open the two channels at the same time, that is, the adjustment of different load segments of the gas water heater can be rea...

Claims

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Application Information

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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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