Method, device and equipment for detecting remaining water use time of electric water heater and storage medium

Abstract

The invention provides a method, device and equipment for detecting the remaining water use time of an electric water heater and a storage medium. The method comprises the steps that water flow data detected by a water flow sensor are obtained; judging whether the electric water heater is in a water using state or not according to the water flow data; when the electric water heater is in a water using state, the water tank temperature sensed by the temperature probe is obtained, the first timer is reset, and timing is started; when the temperature drop amount of the water tank reaches a firsttemperature threshold value, obtaining the current time of a first timer, recording the current time as first water using duration, obtaining the current water tank temperature sensed by a temperatureprobe, and recording the current water tank temperature as first water tank temperature; according to a preset water outlet temperature threshold value, the first water using time length and the first water tank temperature, the remaining water using time of the electric water heater after the water tank temperature drops by the first temperature threshold value every time is calculated; the method can effectively eliminate the influence of the deviation of the volume of the electric water heater, the deviation of the water inlet flow and the energy loss in the water mixing process, and improves the detection accuracy of the remaining water consumption time.

Description

technical field [0001] The invention relates to the technical field of detection of water usage time of electric water heaters, in particular to a method, device, equipment and storage medium for detection of remaining water usage time of electric water heaters. Background technique [0002] Storage-type electric water heater is a water heater that uses electricity as energy for heating. After the traditional storage-type electric water heater is heated, it is impossible to know the exact length of use of the water heater during the user's use, so the user's bathing process will occur. In the case of washing in cold water, the comfort of bathing will be reduced. [0003] At present, the above problems have not been solved. The conventional method is to combine the water flow sensor, inlet water temperature probe, outlet water temperature probe, and water tank temperature probe installed on the water heater to establish a water discharge system through different cold water in...

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Problems solved by technology

[0002] Storage-type electric water heater is a water heater that uses electricity as energy for heating. After the traditional storage-type electric water heater is heated, it is impossible to know the exact length of use of the water heater during the user's use, so the user's bathing process will occur. In the case of washing in cold water, resulting in a decrease in bathing comfort

[0003] At present, the above problems have not been solved. The conventional method is to combine the water flow sensor, inlet water temperature probe, outlet water temperature probe, and water tank temperature probe installed on the water heater to establish a water discharge system through different cold water inlet flows and cold water inlet temperatures. Model, through the actual water discharge test to get the actual time data, so as to obtain a table of the water discharge model, when the water heater is discharging water, by looking up the table, so as to obtain the remaining water consumption time of the water heater; however, due to the water storage type There are deviations in the volume of the water tank of the water heater and the heat loss of the mixed water. The remaining water use time of the water heater is not accurate enough by using the water discharge model, and each water discharge model is only applicable to one type of water heater, which is poor in versatility

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