A double-ladder heating method for water purifiers

Abstract

The application discloses a water purifier double-ladder heating method, and belongs to the technical field of heating. The method comprises the following steps: S1: obtaining continuous water inlet temperature of a water inlet channel of the water purifier; S2: setting an outlet water temperature threshold value, and constructing a first heating mode and a second heating mode; S3: determining a heating mode according to the continuous water inlet temperature and the outlet water temperature threshold value; and S4: controlling the water purifier to heat according to the heating mode. The water purifier double-ladder heating method sets the first heating mode and the second heating mode, selects different heating modes according to different temperature requirements, can reduce heating power of the whole water purifier and energy consumption of the water purifier, ensures that the outlet water quantity of the water purifier is normal at low temperature, changes little in water temperature at a water outlet of the water purifier, and improves overall water production rate of the water purifier.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of heating, and particularly relates to a double-ladder heating method for a water purifier. BACKGROUND

[0002] The existing water purifier with a heating function usually uses one-stage heat storage heating to directly heat source water to a specified temperature. This method has the disadvantage of low heating efficiency because a large amount of water needs to be heated, the temperature of the water outlet changes greatly, the water temperature is not suitable, and the energy consumption of the whole machine rises.

[0003] When one-stage instant heating is used, the instant heating is in a closed state when hot water is not used, but the disadvantage is that the instantaneous power is large in this way, and a large number of water heaters simultaneously used will cause a large burden on the power supply network. At the same time, the heating power of the whole water purifier is too large, the energy consumption of the water purifier is high, the water outlet flow of the water purifier decreases at low temperature, and the water temperature at the water outlet of the water purifier changes greatly. SUMMARY

[0004] The application proposes a double-ladder heating method for a water purifier to solve the above problems.

[0005] The technical scheme of the application is as follows:

[0006] S1: Obtain the continuous inlet water temperature of the water purifier;

[0007] S2: Set the outlet water temperature threshold value, and construct a first heating mode and a second heating mode;

[0008] S3: Determine the heating mode according to the continuous inlet water temperature and the outlet water temperature threshold value;

[0009] S4: Control the water purifier to heat according to the heating mode.

[0010] Further, in step S2, the first heating mode is specifically as follows: set a first temperature threshold value and a first heating time; and in the first heating time, control the water purifier to heat to the outlet water temperature threshold value.

[0011] Further, in step S2, the second heating mode is specifically as follows: set a second temperature threshold value, a second heating time and a stabilization time; in the first heating time, control the water purifier to heat to the first temperature threshold value, and after maintaining the first temperature threshold value for the stabilization time, in the second heating time, control the water purifier to heat to the outlet water temperature threshold value.

[0012] Further, step S3 includes the following sub-steps:

[0013] S31: Draw a real-time temperature curve according to the continuous inlet water temperature, and draw an ideal temperature curve according to the outlet water temperature threshold value;

[0014] S32: extracting a reference temperature according to the real-time temperature curve and the ideal temperature curve;

[0015] S33: determining a heating mode according to the reference temperature.

[0016] Further, in step S31, the specific method of drawing the real-time temperature curve is: in a two-dimensional coordinate system, taking the time corresponding to the continuous inlet water temperature as the horizontal coordinate and taking the continuous inlet water temperature as the vertical coordinate, the real-time temperature curve is drawn.

[0017] Further, in step S31, the specific method of drawing the ideal temperature curve is: in a two-dimensional coordinate system, taking the time corresponding to the continuous inlet water temperature as the horizontal coordinate and taking the outlet water temperature threshold as the vertical coordinate, the ideal temperature curve is drawn.

[0018] Further, step S32 includes the following sub-steps:

[0019] S321: in a two-dimensional coordinate system, calculating the vertical coordinate difference between the real-time temperature curve and the ideal temperature curve at each horizontal coordinate to obtain a temperature difference sequence;

[0020] S322: converting the temperature difference sequence into a standard temperature difference sequence conforming to the standard normal distribution;

[0021] S323: determining the reference temperature according to the standard temperature difference sequence.

[0022] Further, in step S322, the calculation formula of each standard temperature difference T i in the standard temperature difference sequence is:

[0023]

[0024] In the formula, t i represents the vertical coordinate difference corresponding to the ith moment in the temperature difference sequence, ave t represents the average value of the continuous inlet water temperature, and stde t represents the standard deviation of the continuous inlet water temperature.

[0025] Further, in step S323, the specific method of determining the reference temperature is: taking the difference between the outlet water temperature threshold and the first temperature threshold as the left endpoint of the temperature interval, taking the difference between the outlet water temperature threshold and the second temperature threshold as the right endpoint of the temperature interval to obtain the temperature interval; eliminating the temperature difference in the standard temperature difference sequence that does not belong to the temperature interval, and taking the average value of the remaining temperature difference as the reference temperature.

[0026] Further, in step S3, if the reference temperature is less than or equal to the first temperature threshold, the first heating mode is adopted; if the reference temperature is greater than the second temperature threshold, the second heating mode is adopted.

[0027] The beneficial effects of the present application are: the water purifier double-ladder heating method sets a first heating mode and a second heating mode, different heating modes are selected according to different temperature requirements, the heating power of the whole water purifier and the energy consumption of the water purifier can be reduced, the water output of the water purifier at low temperature is still normal, the water temperature at the water outlet of the water purifier changes little, and the overall water production rate of the water purifier is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The flowchart of the water purifier double-ladder heating method. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be further described below with reference to the accompanying drawings.

[0030] As shown in the drawings, the present application provides a water purifier double-ladder heating method, comprising the following steps: Figure 1

[0031] S1: obtaining the continuous water inlet temperature of the water inlet channel of the water purifier;

[0032] S2: setting the water outlet temperature threshold and constructing the first heating mode and the second heating mode;

[0033] S3: determining the heating mode according to the continuous water inlet temperature and the water outlet temperature threshold;

[0034] S4: controlling the water purifier to heat according to the heating mode.

[0035] In the embodiment of the present application, in step S2, the first heating mode is specifically: setting a first temperature threshold and a first heating time; in the first heating time, the water purifier is controlled to heat to the water outlet temperature threshold.

[0036] In the embodiment of the present application, in step S2, the second heating mode is specifically: setting a second temperature threshold, a second heating time and a stabilization time; in the first heating time, the water purifier is controlled to heat to the first temperature threshold, and after maintaining the first temperature threshold for the stabilization time, in the second heating time, the water purifier is controlled to heat to the water outlet temperature threshold.

[0037] In the embodiment of the present application, step S3 comprises the following sub-steps:

[0038] S31: drawing a real-time temperature curve according to the continuous water inlet temperature, and drawing an ideal temperature curve according to the water outlet temperature threshold;

[0039] S32: extracting a reference temperature according to the real-time temperature curve and the ideal temperature curve;

[0040] S33: determining the heating mode according to the reference temperature. ​

[0041] In the embodiment of the present application, in step S31, the specific method of drawing the real-time temperature curve is: in a two-dimensional coordinate system, taking the time corresponding to the continuous inlet water temperature as the horizontal coordinate and taking the continuous inlet water temperature as the vertical coordinate, the real-time temperature curve is drawn.

[0042] In the embodiment of the present application, in step S31, the specific method of drawing the ideal temperature curve is: in a two-dimensional coordinate system, taking the time corresponding to the continuous inlet water temperature as the horizontal coordinate and taking the outlet water temperature threshold as the vertical coordinate, the ideal temperature curve is drawn.

[0043] In the embodiment of the present application, step S32 comprises the following sub-steps:

[0044] S321: in a two-dimensional coordinate system, the vertical coordinate difference between the real-time temperature curve and the ideal temperature curve at each horizontal coordinate is calculated to obtain a temperature difference sequence;

[0045] S322: the temperature difference sequence is converted into a standard temperature difference sequence conforming to the standard normal distribution;

[0046] S323: the reference temperature is determined according to the standard temperature difference sequence.

[0047] In the embodiment of the present application, in step S322, the calculation formula of each standard temperature difference T i in the standard temperature difference sequence is:

[0048]

[0049] In the formula, t i represents the vertical coordinate difference corresponding to the i th moment in the temperature difference sequence, ave t represents the average value of the continuous inlet water temperature, and stde t represents the standard deviation of the continuous inlet water temperature.

[0050] In the embodiment of the present application, in step S323, the specific method of determining the reference temperature is: taking the difference between the outlet water temperature threshold and the first temperature threshold as the left end point of the temperature interval, taking the difference between the outlet water temperature threshold and the second temperature threshold as the right end point of the temperature interval to obtain the temperature interval; removing the temperature difference in the standard temperature difference sequence that does not belong to the temperature interval, and taking the average value of the remaining temperature difference as the reference temperature.

[0051] In the embodiment of the present application, in step S3, if the reference temperature is less than or equal to the first temperature threshold, the first heating mode is adopted; if the reference temperature is greater than the second temperature threshold, the second heating mode is adopted.

[0052] Those skilled in the art will appreciate that the embodiments described herein are presented for purposes of illustration and that the inventive principles are not limited to these particular embodiments. Other variations and modifications can be made to the embodiments without departing from the spirit and scope of the inventive principles.

Claims

1. A dual-ladder heating method for a water purifier, characterized by, The method comprises the following steps: S1: obtaining the continuous inlet water temperature of the water purifier; S2: setting the outlet water temperature threshold and constructing a first heating mode and a second heating mode; the first heating mode is specifically setting a first temperature threshold and a first heating time; in the first heating time, the water purifier is controlled to heat to the outlet water temperature threshold; the second heating mode is specifically setting a second temperature threshold, a second heating time and a stabilization time; in the first heating time, the water purifier is controlled to heat to the first temperature threshold, and after maintaining the first temperature threshold for the stabilization time, in the second heating time, the water purifier is controlled to heat to the outlet water temperature threshold; S3: determining the heating mode according to the continuous inlet water temperature and the outlet water temperature threshold; S31: drawing a real-time temperature curve according to the continuous inlet water temperature, and drawing an ideal temperature curve according to the outlet water temperature threshold; in the step S31, the specific method of drawing the real-time temperature curve is that, in a two-dimensional coordinate system, the time corresponding to the continuous inlet water temperature is taken as the horizontal coordinate, and the continuous inlet water temperature is taken as the vertical coordinate, and the real-time temperature curve is drawn; the specific method of drawing the ideal temperature curve is that, in the two-dimensional coordinate system, the time corresponding to the continuous inlet water temperature is taken as the horizontal coordinate, and the outlet water temperature threshold is taken as the vertical coordinate, and the ideal temperature curve is drawn; S32: extracting a reference temperature according to the real-time temperature curve and the ideal temperature curve; The method comprises the following sub-steps: S321: in the two-dimensional coordinate system, the vertical coordinate difference of the real-time temperature curve and the ideal temperature curve under each horizontal coordinate is calculated to obtain a temperature difference sequence; S322: converting the temperature difference sequence into a standard temperature difference sequence conforming to the standard normal distribution; S323: determining the reference temperature according to the standard temperature difference sequence; S33: determining the heating mode according to the reference temperature; S4: controlling the water purifier to heat according to the heating mode.

2. The dual-ladder heating method of a water purifier according to claim 1, characterized in that, In the step S322, each standard temperature difference value in the standard temperature difference value sequence T i The calculation formula is: In the formula, t i Represents the first value in the temperature difference sequence. i The difference in the ordinate at each time point ave t This represents the average value of the continuous influent water temperature. stde t This represents the standard deviation of the continuous influent water temperature.

3. The dual-ladder heating method of claim 1, wherein, In the step S323, the specific method of determining the reference temperature is that the difference between the outlet water temperature threshold and the first temperature threshold is taken as the left end point of a temperature interval, and the difference between the outlet water temperature threshold and the second temperature threshold is taken as the right end point of the temperature interval, so as to obtain the temperature interval; The temperature difference in the standard temperature difference sequence that does not belong to the temperature interval is removed, and the average value of the remaining temperature difference is taken as the reference temperature.

4. The dual-ladder heating method of a water purifier according to claim 1, characterized in that, In the step S3, if the reference temperature is less than or equal to the first temperature threshold, the first heating mode is adopted; if the reference temperature is greater than the second temperature threshold, the second heating mode is adopted.

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