Water temperature heating control method and device, water temperature control equipment and water temperature heating equipment

Abstract

The invention relates to a water temperature heating control method and device, water temperature control equipment and water temperature heating device.The water temperature heating control method comprises the steps that water inlet parameters are obtained, gas heating power of a gas heating device is determined according to the water inlet parameters and the set temperature, and medium-range parameters of a water outlet of the gas heating device are obtained; and controlling the working voltage of the ohm heating device according to the medium range parameter and the set temperature. The water inlet parameters are detected by the detection device at the water inlet of the gas heating device, the water outlet of the gas heating device is connected with the water inlet of the ohmic heating device, and the ohmic heating device is used for heating water output by the water outlet of the gas heating device. The fuel gas heating device and the ohm heating device are respectively controlled according to detected parameters, flowing water is heated, and the water heater is suitable for various water temperature heating conditions. Particularly, under the condition that heating of the gas heating device is not in place, secondary heating can be conducted through the ohm heating device, so that the water temperature is matched with the set temperature, and control over the water temperature is more accurate.

Description

Technical Field

[0001] The present application relates to the technical field of water heaters, and in particular to a water temperature heating control method, device, water temperature control equipment, water temperature heating equipment, computer equipment, computer-readable storage medium and computer program product. Background Art

[0002] Gas water heaters can consume gas to heat the water used, improving user experience. As the laying of gas pipelines becomes more and more popular, the use of gas water heaters is also increasing.

[0003] Current gas water heaters usually control the release of gas heat energy by controlling the gas flow rate, thereby controlling the degree of water temperature rise and achieving target water output temperature. When controlling the gas flow rate, it is difficult for the gas water heater to achieve stable operation when the gas flow rate is too small, so the gas water heater usually has a relatively large minimum heating power.

[0004] However, when the water temperature is slightly different from the target temperature, the water temperature obtained by the gas water heater at the minimum heating power will still be higher than the target water temperature, resulting in the water outlet temperature of the gas water heater not matching the set target temperature. Therefore, the current gas water heater has defects in water temperature control and low accuracy. Summary of the invention

[0005] Based on this, it is necessary to provide a water temperature heating control method, device, water temperature control equipment, water temperature heating equipment, computer equipment, computer-readable storage medium and computer program product that can improve the accuracy of water temperature control in response to the above technical problems.

[0006] In a first aspect, the present application provides a water temperature heating control method, the method comprising:

[0007] Obtaining water inlet parameters; the water inlet parameters are detected by a detection device at the water inlet of the gas heating device;

[0008] Determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature;

[0009] Obtaining mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of an ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device;

[0010] The operating voltage of the ohmic heating device is controlled according to the mid-range parameter and the set temperature.

[0011] In one embodiment, before determining the gas heating power of the gas heating device according to the water inlet parameter and the set temperature, the method further includes:

[0012] Determine the target heating power according to the water inlet parameter and the set temperature;

[0013] When the target heating power reaches the basic heating power, determining the heating power of the gas heating device according to the water inlet parameter and the set temperature is performed;

[0014] When the target heating power does not reach the basic heating power, the step of obtaining the mid-range parameters of the water outlet of the gas heating device is performed.

[0015] In one embodiment, after acquiring the water inlet parameter and before determining the target heating power according to the water inlet parameter and the set temperature, the method further includes:

[0016] In the case where the water inlet parameter meets the heating start condition, the step of determining the target heating power according to the water inlet parameter and the set temperature is performed.

[0017] In one embodiment, controlling the working voltage of the ohmic heating device according to the mid-range parameter and the set temperature includes:

[0018] determining the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature;

[0019] The operating voltage of the ohmic heating device is determined based on the structural parameters of the ohmic heating device and the electrical heating power.

[0020] In one embodiment, before determining the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature, the method further includes:

[0021] When the deviation value between the mid-range parameter and the set temperature is less than a preset deviation range, controlling the ohmic heating device to stop working;

[0022] In the case where the deviation value between the mid-range parameter and the set temperature is greater than or equal to the preset deviation range, the step of determining the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature is performed.

[0023] In one embodiment, after controlling the working voltage of the ohmic heating device according to the mid-range parameter and the set temperature, the method further includes:

[0024] Obtaining water outlet parameters of the water outlet of the ohmic heating device;

[0025] In the case where the water outlet parameter does not match the set temperature, the operating voltage of the ohmic heating device is adjusted based on the water outlet parameter and the set temperature.

[0026] In a second aspect, the present application also provides a water temperature heating control device, the device comprising:

[0027] A water inlet detection module is used to obtain water inlet parameters; the water inlet parameters are detected by a detection device at the water inlet of the gas heating device;

[0028] A gas heating module, used for determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature;

[0029] A mid-range detection module, used to obtain mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of an ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device;

[0030] The ohmic heating module is used to control the working voltage of the ohmic heating device according to the mid-range parameter and the set temperature.

[0031] In the third aspect, the present application also provides a water temperature control device, which includes a detection device and a controller, the detection device is connected to the controller, the controller is connected to the water heater, the detection device is arranged on the water heater, and is used to collect water inlet parameters and mid-range parameters, and transmit them to the controller, and the controller is used to control the water temperature heating of the water heater based on the above method.

[0032] In a fourth aspect, the present application also provides a water temperature heating device, which includes a water heater and a water temperature control device as described above, wherein the water heater includes a gas heating device and an ohmic heating device, the water outlet of the gas heating device is connected to the water inlet of the ohmic heating device, the detection device of the water temperature control device is arranged at the water inlet of the gas heating device and the water outlet of the gas heating device, and the controller of the water temperature control device is connected to the gas heating device and the ohmic heating device.

[0033] In one of the embodiments, the detection device is also disposed at the water outlet of the ohmic heating device, for collecting water outlet parameters of the water outlet of the ohmic heating device and transmitting them to the controller.

[0034] In one embodiment, the ohmic heating device includes a water tank, a first electrode plate and a second electrode plate, the water tank has a water inlet and a water outlet, the water inlet of the water tank is connected to the water outlet of the gas heating device; the first electrode plate and the second electrode plate are arranged at relative positions in the water tank, and are both connected to the controller for heating the water between the first electrode plate and the second electrode plate.

[0035] In a fifth aspect, the present application further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0036] Obtaining water inlet parameters; the water inlet parameters are detected by a detection device at the water inlet of the gas heating device;

[0037] Determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature;

[0038] Obtaining mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of an ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device;

[0039] The operating voltage of the ohmic heating device is controlled according to the mid-range parameter and the set temperature.

[0040] In a sixth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0041] Obtaining water inlet parameters; the water inlet parameters are detected by a detection device at the water inlet of the gas heating device;

[0042] Determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature;

[0043] Obtaining mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of an ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device;

[0044] The operating voltage of the ohmic heating device is controlled according to the mid-range parameter and the set temperature.

[0045] In a seventh aspect, the present application further provides a computer program product, including a computer program, which implements the following steps when executed by a processor:

[0046] Obtaining water inlet parameters; the water inlet parameters are detected by a detection device at the water inlet of the gas heating device;

[0047] Determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature;

[0048] Obtaining mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of an ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device;

[0049] The operating voltage of the ohmic heating device is controlled according to the mid-range parameter and the set temperature.

[0050] The above-mentioned water temperature heating control method, device, water temperature control equipment, water temperature heating equipment, computer equipment, computer-readable storage medium and computer program product include obtaining water inlet parameters, determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature, obtaining the mid-range parameters of the water outlet of the gas heating device, and controlling the working voltage of the ohmic heating device according to the mid-range parameters and the set temperature. Among them, the water inlet parameters are detected by the detection device at the water inlet of the gas heating device, the water outlet of the gas heating device is connected to the water inlet of the ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device. By controlling the gas heating device and the ohmic heating device respectively according to the detected parameters, the water flowing through is heated, which is suitable for various water temperature heating situations. In particular, when the heating of the gas heating device is not in place, the ohmic heating device can be used for secondary heating to match the water temperature with the set temperature, and the water temperature can be controlled more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments of the present application or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 It is a structural schematic diagram of a water temperature heating device in one embodiment;

[0053] Figure 2 A schematic flow chart of a water temperature heating control method in one embodiment;

[0054] Figure 3 A schematic flow chart of a water temperature heating control method in another embodiment;

[0055] Figure 4 A schematic flow chart of a water temperature heating control method in another embodiment;

[0056] Figure 5 A schematic flow chart of a water temperature heating control method in yet another embodiment;

[0057] Figure 6 A schematic flow chart of a water temperature heating control method in another embodiment;

[0058] Figure 7 It is a structural schematic diagram of a water temperature heating device in another embodiment;

[0059] Figure 8 is a schematic structural diagram of an ohmic heating device in one embodiment;

[0060] Fig. 9 is a structural block diagram of a water temperature heating control device in one embodiment;

[0061] Fig.10 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment.

[0062] Explanation of the reference numerals: 110 detection device, 120 controller, 130 gas heating device, 140 ohm heating device; 01 water flow sensor, 02 water inlet temperature sensor, 03 circulating water pump, 04 water inlet pipeline, 05 heat exchanger, 06 gas heating (system), 07 water outlet pipeline, 08 intermediate temperature sensor, 09 controller, 10 ohm heating device (system), 11 water outlet temperature sensor; 1001 tank body, 10011 water outlet, 1002 electrode plate 1, 10021 electrode plate 1 terminal, 1003 sealing ring 1, 1004 locking nut 1, 1005 sealing ring 2, 1006 tank cover, 10061 water inlet, 1007 electrode plate 2, 10071 electrode plate 2 terminal, 1008 sealing ring 3, 1009 locking nut 1. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0064] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0065] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0066] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the relevant listed items.

[0067] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0068] The water temperature heating control method provided in the embodiment of the present application can be applied to various water temperature heating devices that can heat water. For example, the water temperature heating device can be a wall-mounted boiler or a water heater. Figure 1 As shown, the present application provides a water temperature control device, which includes a detection device 110 and a controller 120. The detection device 110 is connected to the controller 120, and the controller 120 is connected to the water heater. The detection device 110 is arranged on the water heater to collect water inlet parameters and mid-range parameters and transmit them to the controller 120. The controller 120 is used to perform water temperature heating control on the water heater based on the water temperature heating control method described in each embodiment of the present application.

[0069] The 110 detection device can be a sensor capable of detecting different positions in the water heater, such as a temperature sensor, a flow sensor, etc. When the 110 detection device is set at different positions of the water heater, different data is collected accordingly, including but not limited to water inlet parameters and mid-range parameters. For example, when the 110 detection device is set at the water inlet of the water heater for detection, the data collected at this time is the water inlet parameter; when the 110 detection device is set at the water outlet of the water heater for detection, the data collected at this time is the water outlet parameter. The 110 detection device is connected to the 120 controller and can transmit the collected data to the 120 controller. The 120 controller controls the water heater based on the water temperature heating control method described in each embodiment of the present application to achieve water temperature heating control.

[0070] Specifically, the present application also provides a water temperature heating device. In one embodiment, Figure 1 As shown, the water temperature heating device includes a water heater and a water temperature control device as described in the above embodiment. The water heater and the water temperature control device are connected, and the water temperature control device controls the operation of the water heater to achieve heating control of the temperature of water flowing through the water heater. In this case, the water heater may also include a main control chip, and the 120 controller controls the water heater by interacting with the main control chip. In one embodiment, the main control chip of the water heater may be the 120 controller, and the 120 controller coordinates the control of the 110 detection device and the water heater.

[0071] The water heater includes a 130 gas heating device and a 140 ohm heating device, both of which include pipes for water flow, and the pipes of the two are connected, the water outlet of the 130 gas heating device is connected to the water inlet of the 140 ohm heating device, the water inlet of the 130 gas heating device is equivalent to the water inlet of the water heater, and the water outlet of the 140 ohm heating device is equivalent to the water outlet of the water heater. The 110 detection device of the water temperature control device is arranged at the water inlet of the 130 gas heating device and the water outlet of the 130 gas heating device, which is equivalent to the water inlet of the water heater and the water inlet of the 140 ohm heating device. When the 110 detection device is arranged at the water inlet of the 130 gas heating device, the water inlet parameters of the water heater can be collected; when the 110 detection device is arranged at the water outlet of the 130 gas heating device, the mid-range parameters of the water heater can be collected. The controller 120 of the water temperature control device is connected to the gas heating device 130 and the ohm heating device 140. The controller 120 can control the gas heating devices 130 respectively and adjust the corresponding working states to achieve water temperature heating control of the water heater.

[0072] 130 A gas heating device is a device that uses gas as energy to achieve heating, and may include an ignition device and a heat exchange device. The ignition device may be provided with a combustion chamber, and gas is input into the combustion chamber and ignited to achieve heat release. The released heat is transferred to the water in the pipe through the heat exchange device, and the water can be heated.

[0073] The 140 ohm heating device is an electrical structural device that can convert electrical energy into thermal energy by utilizing the electrical conductivity of a medium. In one embodiment, the 140 ohm heating device includes a water tank, a first electrode plate and a second electrode plate. The water tank has a water inlet and a water outlet. The water inlet of the water tank is connected to the water outlet of the 130 gas heating device. The water tank is used to store water flowing through. The diameter of the water tank can be larger than the diameter of the pipeline to reduce the flow rate of water in the 140 ohm heating device, which is conducive to fully heating the water. The first electrode plate and the second electrode plate are arranged at relative positions in the water tank and are both connected to the 120 controller to heat the water between the first electrode plate and the second electrode plate. The two electrode plates and the water between the electrode plates are equivalent to forming a resistor. By applying opposite voltages to the two electrode plates or connecting them to both ends of a power supply, it can be equivalent to forming a circuit loop with the above-mentioned resistor, accumulating heat on the resistor to achieve heating of the water.

[0074] In an exemplary embodiment, Figure 2 As shown, a water temperature heating control method is provided, which is applied to Figure 1 The controller 120 in the example is used to illustrate the method, which includes the following steps 202 to 208. Among them:

[0075] Step 202, obtaining water inlet parameters.

[0076] The water inlet parameters are detected by the detection device at the water inlet of the gas heating device. The detection device is arranged at the water inlet of the gas heating device, and can collect the water inlet parameters and transmit them to the controller. The controller is connected to the detection device and can obtain the water inlet parameters by interacting with the detection device.

[0077] Optionally, the controller can also obtain the start and stop status of the water heater. In this case, the controller can control the start and stop status of the detection device according to the start and stop status of the water heater. That is, when the water heater is started, the controller controls the detection device set at the water inlet of the gas heating device to start, collect water inlet parameters, and transmit them to the controller; when the water heater stops working, the controller controls the detection device to stop working, so as to reduce energy consumption and improve the degree of intelligence.

[0078] Furthermore, the water inlet parameters may include water inlet temperature and water inlet flow rate, and correspondingly, the detection device may include a temperature sensor and a flow rate sensor.

[0079] Step 204, determining the gas heating power of the gas heating device according to the water inlet parameter and the set temperature.

[0080] The controller stores a set temperature, which may be a set outlet water temperature of the water heater, which may be selected by the user or obtained by the water heater according to the working mode, operating status or historical usage data. The controller interacts with the water heater to obtain the set temperature and stores it, or the controller directly interacts with the user to obtain the set temperature and stores it.

[0081] Specifically, after obtaining the water inlet parameters, the controller calls the set temperature and the water inlet parameters for analysis, for example, comparing the water inlet temperature in the water inlet parameters with the set temperature, and determining the gas heating power of the gas heating device according to the temperature difference between the two. The gas heating power can be determined by the gas rate. When the gas rate in the gas heating device is higher, the corresponding ignition releases more heat, and the heating temperature of the water flowing through the gas heating device is higher, thereby achieving heating control of the water.

[0082] Exemplarily, the controller determines the gas heating power of the gas heating device according to the difference between the inlet water temperature and the set temperature in the inlet water parameter, combined with the inlet water flow rate in the inlet water parameter. The formula for the gas heating power is (Ts-Tj)×C×F, where Ts is the set temperature, Tj is the inlet water temperature, C is the specific heat capacity of water, and F is the inlet water flow rate. The controller adjusts the gas rate of the gas heating device accordingly, so that the gas heating device can heat the water with the calculated gas heating power.

[0083] Step 206, obtaining mid-range parameters of the water outlet of the gas heating device.

[0084] The water outlet of the gas heating device is connected to the water inlet of the ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device. The gas heating device and the ohmic heating device heat the water flowing through in turn, that is, the water heated by the gas heating device flows into the ohmic heating device for secondary heating. The detection device is also arranged at the water outlet of the gas heating device, that is, the water inlet of the ohmic heating device, and can collect mid-range parameters, that is, mid-range parameters of the water between the gas heating device and the ohmic heating device, such as mid-range temperature or mid-range flow rate.

[0085] Specifically, the controller is connected to the detection device, and can obtain mid-range parameters through the detection device arranged at the water outlet of the gas heating device. Furthermore, the controller can also control the start and stop state of the detection device according to the start and stop state of the water heater. That is to say, when the water heater is started, the controller controls the detection device arranged at the water outlet of the gas heating device to start, collect mid-range parameters, and transmit them to the controller; when the water heater stops working, the controller controls the detection device to stop working.

[0086] It should be noted that since the gas heating device, the ohmic heating device and even the pipelines in the entire water heater all have the characteristic of equal flow rates, when the detection device is arranged at the water inlet and outlet of the gas heating device, temperature sensors can be arranged at the water inlet and outlet of the gas heating device, and a flow sensor can be arranged at at least one of the water inlet and outlet of the gas heating device, thereby completing the detection of water inlet parameters and mid-range parameters.

[0087] Step 208, controlling the operating voltage of the ohmic heating device according to the mid-range parameter and the set temperature.

[0088] Specifically, after obtaining the mid-range parameters, the controller calls the set temperature and mid-range parameters for analysis, for example, comparing the water inlet temperature in the mid-range parameters with the set temperature, and determining the working voltage of the ohmic heating device according to the temperature difference between the two. By applying different voltages to the ohmic heating device, the heating control of the water in the ohmic heating device is achieved.

[0089] By setting up an ohmic heating device, water is heated secondary on the basis of the gas heating device. Since the ohmic heating device is based on electric drive, it can achieve stepless adjustment by controlling the working voltage. The minimum heating power can reach 0, thereby filling the heating vacuum zone between the minimum value of the gas heating power of the gas heating device and 0, which is beneficial to improve the heating accuracy of the water temperature heating equipment and is suitable for various water temperature heating situations.

[0090] The above-mentioned water temperature heating control method includes obtaining water inlet parameters, determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature, obtaining the mid-range parameters of the water outlet of the gas heating device, and controlling the working voltage of the ohmic heating device according to the mid-range parameters and the set temperature. Among them, the water inlet parameters are detected by the detection device at the water inlet of the gas heating device, the water outlet of the gas heating device is connected to the water inlet of the ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device. By controlling the gas heating device and the ohmic heating device respectively according to the detected parameters, the water flowing through is heated, which is suitable for various water temperature heating situations. In particular, when the heating of the gas heating device is not in place, the ohmic heating device can be used for secondary heating to match the water temperature with the set temperature, and the water temperature can be controlled more accurately.

[0091] In an exemplary embodiment, Figure 3 As shown, before step 204, the water temperature heating control method further includes step 302: determining the target heating power according to the water inlet parameters and the set temperature.

[0092] Specifically, the target heating power determined according to the water inlet parameters and the set temperature and the gas heating power of the gas heating device determined according to the water inlet parameters and the set temperature can be the same power, and both can represent the power required to output water at the set temperature based on the water inlet parameters. Specifically, after obtaining the water inlet parameters, the controller does not control the gas heating device first, but calls the set temperature and water inlet parameters for analysis, for example, compares the water inlet temperature in the water inlet parameters with the set temperature, and determines the target heating power according to the temperature difference between the two, and the target heating power can also be applied to step 204 as the gas heating power.

[0093] Exemplarily, the controller determines the target heating power according to the difference between the inlet water temperature and the set temperature in the inlet water parameter, combined with the inlet water flow rate in the inlet water parameter. Then, the formula for the target heating power is the same as the formula for the gas heating power in the above embodiment, which is (Ts-Tj)×C×F, where Ts is the set temperature, Tj is the inlet water temperature, C is the specific heat capacity of water, and F is the inlet water flow rate.

[0094] The controller then compares the target heating power with the basic heating power, and determines the subsequent water temperature heating control steps according to the comparison result. Specifically, when the target heating power reaches the basic heating power, step 204 is executed to determine the heating power of the gas heating device according to the water inlet parameters and the set temperature; when the target heating power does not reach the basic heating power, step 206 is executed to obtain the mid-range parameters of the water outlet of the gas heating device.

[0095] The controller stores the basic heating power, which represents the minimum heating power of the gas heating device. It can be selected by the user according to the needs, or it can be obtained based on the analysis of the gas flow rate, gas pipeline structure, operating status or historical usage data of the gas heating device. The controller can interact with the main control chip of the water heater to obtain the basic heating power and store it, or the controller can directly interact with the user to obtain the basic heating power and store it.

[0096] Specifically, when the target heating power reaches the basic heating power, that is, the target heating power is greater than or equal to the basic heating power, it indicates that the temperature of the water at the water inlet of the current gas heating device is a certain distance from the set temperature, and the gas heating device can heat the water by adjusting the gas heating power to raise the temperature of the water in the pipeline to the set temperature. Therefore, in this case, the controller will execute the control of step 204, adjust the power of the gas heating device, and control the gas heating device to heat the water with the calculated gas heating power.

[0097] When the target heating power does not reach the basic heating power, that is, the target heating power is less than the basic heating power, it indicates that the water temperature at the water inlet of the current gas heating device is close to the set temperature. If the gas heating device is used to heat the water, the heated water temperature will be too high and will not match the set temperature. Therefore, in this case, the controller will skip step 204 and execute step 206, control the gas heating device not to work, and directly obtain the mid-range parameters of the water outlet of the gas heating device, so as to facilitate the subsequent control of the ohmic heating device to heat the water.

[0098] In this embodiment, by calculating the target heating power and comparing it with the basic heating power, it is possible to effectively avoid the problem of the gas heating device heating the water at too high a temperature, resulting in a poor user experience. This is beneficial to ensuring that the water outlet temperature of the water heater matches the set temperature and improves the accuracy of water temperature heating control.

[0099] In an exemplary embodiment, Figure 3 As shown, after step 202 and before step 302, the water inlet parameters and the heating start conditions need to be analyzed. When the water inlet parameters meet the heating start conditions, step 302 is executed to determine the target heating power according to the water inlet parameters and the set temperature.

[0100] Specifically, the heating start condition is a set start condition of the heater, and is also a self-test condition of the heater. The heating start condition can be stored in the controller, including the conditional limitation of the water temperature and / or the conditional limitation of the water flow rate. The heating start condition can be selected by the user independently, or it can be obtained by analyzing the water heater according to the working mode, operating status or historical usage data. Exemplarily, the heating start condition can be that the water flow rate of the water inlet parameter is greater than or equal to the default flow threshold, and the water inlet temperature of the water inlet parameter is less than or equal to the default temperature threshold. The default temperature threshold is determined based on the set temperature, for example, the default temperature threshold is obtained by subtracting 0.2°C from the set temperature.

[0101] When the water inlet parameters meet the heating start condition, that is, the water inlet flow rate of the water inlet parameters is greater than or equal to the default flow rate threshold, and the water inlet temperature of the water inlet parameters is less than or equal to the default temperature threshold, the controller may execute step 302 to determine the target heating power according to the water inlet parameters and the set temperature.

[0102] Optionally, when the water inlet parameters do not meet the heating start condition, the water temperature at the water inlet of the gas heating device may match the default temperature threshold, and the water inlet temperature of the water inlet parameters may be greater than the default temperature threshold. At this time, the water inlet temperature is very close to the set temperature and does not need to be heated. In this case, the gas heating device and the ohmic heating device may not be controlled, and the water at the water inlet of the gas heating device may flow directly in the pipeline until the water outlet of the ohmic heating device is output, that is, the water outlet of the water heater is output.

[0103] It should be noted that when the water inlet parameters do not meet the heating start conditions, it is also possible that the flow data in the water inlet parameters does not meet the flow required by the heating start conditions, that is, the water inlet flow of the water inlet parameters is less than the default flow threshold. At this time, the flow rate at the water inlet of the gas heating device is too small, and the amount of water in the pipeline is too small. The controller can determine that there is an abnormality in the water heater pipeline, or the connected water source input is abnormal, and it may be an abnormality in the flow sensor of the detection device. On the basis of stopping the control of the gas heating device and the ohmic heating device, the controller can also generate an abnormal prompt information for the water heater display, prompting the user that the current water temperature heating equipment has an abnormality and needs to be repaired in time.

[0104] In this embodiment, by limiting the starting conditions of the water heater and obtaining the water inlet parameters, it is accurately determined whether the water inlet parameters at this time require starting the gas heating device or the ohmic heating device in the water heater for heating. On the one hand, the operating reliability of the water heater is guaranteed, and on the other hand, the water temperature heating can be more accurately controlled.

[0105] In an exemplary embodiment, Figure 4 As shown, step 208 includes steps 402 to 404 .

[0106] Step 402, determining the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature.

[0107] Specifically, after obtaining the mid-range parameters, the controller calls the set temperature and mid-range parameters for analysis, for example, comparing the mid-range temperature in the mid-range parameters with the set temperature, and determining the electric heating power of the ohmic heating device according to the temperature difference between the two. The electric heating power represents the heat energy converted from the electric energy of the ohmic heating device. The higher the electric energy applied to the ohmic heating device and the higher the voltage, the more heat is released between the two electrode plates of the corresponding ohmic heating device, and the higher the heating temperature of the water flowing through the ohmic heating device, that is, the water in the water tank of the ohmic heating device, is achieved.

[0108] Exemplarily, the controller determines the electric heating power of the ohmic heating device based on the difference between the mid-range temperature and the set temperature in the mid-range parameter, combined with the mid-range flow in the mid-range parameter, which is equivalent to the water inlet flow. The formula for the electric heating power is (Ts-T1)×C×F, where Ts is the set temperature, T1 is the mid-range temperature, C is the specific heat capacity of water, and F is the water inlet flow. The controller adjusts the power of the ohmic heating device accordingly, so that the ohmic heating device can heat the water with the calculated electric heating power and the corresponding working voltage applied to the electrode plate.

[0109] Step 404: determining the operating voltage of the ohmic heating device based on the structural parameters of the ohmic heating device and the electric heating power.

[0110] Specifically, since the controller controls the ohmic heating device by adjusting the working voltage on the two electrode plates of the ohmic heating device to adjust the heating power, that is, the controller needs to convert the calculated electric heating power into the corresponding working voltage to control the ohmic heating device.

[0111] Based on the different structural parameters of the ohmic heating device, the conversion relationship between the electric heating power and the working voltage is also different. For example, the distance between the first electrode plate and the second electrode plate of the ohmic heating device is different, the relative area of ​​the first electrode plate and the second electrode plate is different, and the conductivity coefficient of the two electrode plates is different, which will lead to different structural parameters of the ohmic heating device. In this embodiment, the structural parameters of the above-mentioned ohmic heating device can be converted into resistance indicators, that is, the structural parameters of the ohmic heating device are the resistance of the ohmic heating device. As the resistance is different, the corresponding conversion relationship between the electric heating power and the working voltage is also different.

[0112] Therefore, according to the circuit relationship P=V 2 / R, the working voltage of the ohmic heating device can be calculated. Where P is the electric heating power, R is the resistance of the ohmic heating device, and V is the voltage applied between the two electrode plates of the ohmic heating device.

[0113] In this embodiment, by calculating the electric heating power of the ohmic heating device and obtaining the working voltage based on the structural parameters of the ohmic heating device, the controller can directly control the voltage applied between the two electrode plates of the ohmic heating device to be the working voltage, thereby achieving accurate heating of the water.

[0114] In an exemplary embodiment, Figure 5 As shown, before step 402, the water temperature heating control method further includes step 502: when the deviation value between the mid-range parameter and the set temperature is less than a preset deviation range, controlling the ohmic heating device to stop working.

[0115] Specifically, before the controller controls the ohmic heating device to heat water, the deviation value between the mid-range parameter and the set temperature and the preset deviation range can be compared, and the operation of the ohmic heating device can be controlled accordingly according to the comparison result. The deviation value between the mid-range parameter and the set temperature is the difference obtained by subtracting the mid-range parameter from the set value, and the preset deviation range is the set deviation value, for example, 0.2°C.

[0116] When the deviation value between the mid-range parameter and the set temperature is less than the preset deviation range, that is, the deviation between the mid-range temperature of the mid-range parameter and the set temperature is small, indicating that the water temperature at the water inlet of the ohmic heating device is close to the set temperature, the ohmic heating device does not need to heat the water, and the water output by the water heater can meet the user's needs. Therefore, the controller can control the ohmic heating device to stop working and directly output water.

[0117] Optionally, when the deviation value between the mid-range parameter and the set temperature is greater than or equal to the preset deviation range, that is, there is still a certain distance between the mid-range temperature of the mid-range parameter and the set temperature, indicating that the water temperature at the water inlet of the ohmic heating device is lower than the set temperature, the ohmic heating device needs to heat the water so that the temperature of the water outlet of the ohmic heating device can match the set temperature. Then the controller controls the execution of step 402 to determine the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature.

[0118] In this embodiment, before controlling the ohmic heating device to heat the water, the relationship between the deviation value between the mid-range parameter and the set temperature and the preset deviation range is determined, and the ohmic heating device is controlled accordingly to facilitate accurate heating of the water and improve control accuracy.

[0119] In an exemplary embodiment, Figure 6 As shown, after step 208 , the water temperature heating control method further includes steps 602 to 604 .

[0120] Step 602, obtaining water outlet parameters of the water outlet of the ohmic heating device.

[0121] In one embodiment, the detection device is also arranged at the water outlet of the ohmic heating device, that is, the water outlet of the water heater, and the detection device can collect the water outlet parameters of the water outlet of the ohmic heating device and transmit them to the controller. The water outlet parameters may include the water outlet temperature and the water outlet flow rate.

[0122] Specifically, the controller is connected to the detection device, and can obtain the water outlet parameters through the detection device arranged at the water outlet of the ohmic heating device. Furthermore, the controller can also control the start and stop state of the detection device according to the start and stop state of the water heater. That is to say, when the water heater is started, the controller controls the detection device arranged at the water outlet of the ohmic heating device to start, collect the water outlet parameters, and transmit them to the controller; when the water heater stops working, the controller controls the detection device to stop working.

[0123] It should be noted that since the gas heating device, the ohmic heating device and even the pipelines in the entire water heater all have the characteristic of equal flow rates, when the detection device is arranged at the water inlet of the gas heating device, the water outlet of the gas heating device and the water outlet of the ohmic heating device, temperature sensors can be arranged at the water inlet of the gas heating device, the water outlet of the gas heating device and the water outlet of the ohmic heating device, and a flow sensor can be arranged at at least one of the water inlet of the gas heating device, the water outlet of the gas heating device and the water outlet of the ohmic heating device, thereby completing the detection of water inlet parameters, mid-range parameters and water outlet parameters.

[0124] Step 604: When the water outlet parameter does not match the set temperature, adjust the operating voltage of the ohmic heating device based on the water outlet parameter and the set temperature.

[0125] Specifically, the controller compares the water outlet parameters with the set temperature, and when the water outlet parameters do not match the set temperature, the controller adjusts the working voltage of the ohmic heating device based on the water outlet temperature and the set temperature according to the comparison result feedback, so that the working voltage of the ohmic heating device can be adjusted according to the water outlet parameters, mid-range parameters and the set temperature, forming a feedback regulation loop to ensure that the ohmic heating device heats the water accurately.

[0126] Optionally, when the water outlet parameter matches the set temperature, it indicates that the water outlet temperature of the ohmic heating device matches the set temperature, that is, it can meet the user's needs. In this case, the controller does not need to adjust the working voltage of the ohmic heating device based on the water outlet parameter and the set temperature, and does not need to perform feedback adjustment. The ohmic heating device only needs to control the operation of the ohmic heating device based on the mid-range parameter and the set temperature.

[0127] In this embodiment, when controlling the ohmic heating device, mid-range parameters are obtained at the water inlet of the ohmic heating device, water outlet parameters are obtained at the water outlet of the ohmic heating device, and the water outlet parameters are compared with the set temperature to form a feedback control loop, so that the ohmic heating device is adjusted and controlled to make the heating effect of the ohmic heating device accurate, which is beneficial to the matching of the output water temperature with the set temperature and improves the accuracy of water temperature heating control.

[0128] Based on the same technical concept, the present application provides a water temperature control device, such as Figure 1 As shown, the water temperature control device includes a detection device 110 and a controller 120, the detection device 110 is connected to the controller 120, the controller 120 is connected to the water heater, the detection device 110 is arranged on the water heater, and is used to collect water inlet parameters and mid-range parameters, and transmit them to the controller 120. The controller 120 is used to perform water temperature heating control on the water heater based on the water temperature heating control method described in each embodiment of the present application.

[0129] The 110 detection device can be a sensor capable of detecting different positions in the water heater, such as a temperature sensor, a flow sensor, etc. When the 110 detection device is set at different positions of the water heater, different data is collected accordingly, including but not limited to water inlet parameters and mid-range parameters. For example, when the 110 detection device is set at the water inlet of the water heater for detection, the data collected at this time is the water inlet parameter; when the 110 detection device is set at the water outlet of the water heater for detection, the data collected at this time is the water outlet parameter. The 110 detection device is connected to the 120 controller and can transmit the collected data to the 120 controller. The 120 controller controls the water heater based on the water temperature heating control method described in each embodiment of the present application to achieve water temperature heating control.

[0130] Specifically, the present application also provides a water temperature heating device. In one embodiment, Figure 1 As shown, the water temperature heating device includes a water heater and a water temperature control device as described in the above embodiment. The water heater and the water temperature control device are connected, and the water temperature control device controls the operation of the water heater to achieve heating control of the temperature of water flowing through the water heater. In this case, the water heater may also include a main control chip, and the 120 controller controls the water heater by interacting with the main control chip. In one embodiment, the main control chip of the water heater may be the 120 controller, and the 120 controller coordinates the control of the 110 detection device and the water heater.

[0131] The water heater includes a 130 gas heating device and a 140 ohm heating device, both of which include pipes for water flow, and the pipes of the two are connected, the water outlet of the 130 gas heating device is connected to the water inlet of the 140 ohm heating device, the water inlet of the 130 gas heating device is equivalent to the water inlet of the water heater, and the water outlet of the 140 ohm heating device is equivalent to the water outlet of the water heater. The 110 detection device of the water temperature control device is arranged at the water inlet of the 130 gas heating device and the water outlet of the 130 gas heating device, which is equivalent to the water inlet of the water heater and the water inlet of the 140 ohm heating device. When the 110 detection device is arranged at the water inlet of the 130 gas heating device, the water inlet parameters of the water heater can be collected; when the 110 detection device is arranged at the water outlet of the 130 gas heating device, the mid-range parameters of the water heater can be collected. The controller 120 of the water temperature control device is connected to the gas heating device 130 and the ohm heating device 140. The controller 120 can control the gas heating devices 130 respectively and adjust the corresponding working states to achieve water temperature heating control of the water heater.

[0132] 130 A gas heating device is a device that uses gas as energy to achieve heating, and may include an ignition device and a heat exchange device. The ignition device may be provided with a combustion chamber, and gas is input into the combustion chamber and ignited to achieve heat release. The released heat is transferred to the water in the pipe through the heat exchange device, and the water can be heated.

[0133] The 140 ohm heating device is an electrical structural device that can convert electrical energy into thermal energy by utilizing the electrical conductivity of a medium. In one embodiment, the 140 ohm heating device includes a water tank, a first electrode plate and a second electrode plate. The water tank has a water inlet and a water outlet. The water inlet of the water tank is connected to the water outlet of the 130 gas heating device. The water tank is used to store water flowing through. The diameter of the water tank can be larger than the diameter of the pipeline to reduce the flow rate of water in the 140 ohm heating device, which is conducive to fully heating the water. The first electrode plate and the second electrode plate are arranged at relative positions in the water tank and are both connected to the 120 controller to heat the water between the first electrode plate and the second electrode plate. The two electrode plates and the water between the electrode plates are equivalent to forming a resistor. By applying opposite voltages to the two electrode plates or connecting them to both ends of a power supply, it can be equivalent to forming a circuit loop with the above-mentioned resistor, accumulating heat on the resistor to achieve heating of the water.

[0134] In one of the embodiments, the detection device 110 is also disposed at the water outlet of the 140-ohm heating device, for collecting water outlet parameters of the water outlet of the 140-ohm heating device and transmitting them to the controller 120 .

[0135] Since the 130 gas heating device and the 140 ohm heating device and even the pipelines in the entire water heater all have the characteristic of equal flow, when the 110 detection device is arranged at the water inlet of the 130 gas heating device, the water outlet of the 130 gas heating device and the water outlet of the 140 ohm heating device, temperature sensors can be arranged at the water inlet of the 130 gas heating device, the water outlet of the 130 gas heating device and the water outlet of the 140 ohm heating device, and a flow sensor is arranged at at least one of the water inlet of the 130 gas heating device, the water outlet of the 130 gas heating device and the water outlet of the 140 ohm heating device, thereby completing the detection of water inlet parameters, mid-range parameters and water outlet parameters.

[0136] In order to better understand the above solution, a detailed explanation is given below in conjunction with a specific embodiment.

[0137] In an exemplary embodiment, the water temperature heating device includes a water heater and a water temperature control device, the water temperature control device includes a detection device and a controller, and the water heater includes a gas heating device and an ohmic heating device.

[0138] Among them, the water temperature heating equipment can be Figure 7 As shown, 01 water flow sensor, 02 water inlet temperature sensor, 03 circulating water pump, 04 water inlet pipeline, 05 heat exchanger, 06 gas heating (system), 07 water outlet pipeline, 08 intermediate temperature sensor, 09 controller, 10 ohm heating device (system), 11 water outlet temperature sensor. 01 water flow sensor detects water flow F, water flows through 04 water inlet pipeline, and 02 water inlet temperature sensor installed thereon detects water inlet temperature Tj. 03 circulating water pump is an optional accessory, which is configured according to the specific functional requirements of the water heater, and can be set in front of 01 water flow sensor or 02 water inlet temperature sensor. Water flows through the 04 water inlet pipe and enters the 05 heat exchanger. When the water flows through the 05 heat exchanger, it may be heated by the 06 gas heating (system) with a power of Qr (the actual gas heating power) according to the actual situation, and then flows through the 07 water outlet pipe. The 08 intermediate temperature sensor installed on the 07 water outlet pipe will detect the water temperature T1 (mid-range temperature). The water flows through the 07 water outlet pipe and flows into the 10-ohm heating device (system). In the 10-ohm heating device (system), the electric heating power is determined according to the actual situation. The water may be heated by the 10-ohm heating device (system) with a power of Qe (the actual electric heating power). The 11 water outlet temperature sensor installed at the bottom of the 10-ohm heating device (system) will detect the water temperature Tc (outlet water temperature). The set temperature of the water heater is Ts, and the goal of the water heater to control the outlet water temperature Tc is Tc=Ts.

[0139] The internal structure of the ohmic heating device (system) is shown in the figure below: Figure 8As shown, the tank body 1001 is made of insulating material and is in a square shape. The electrode plate installation positions are reserved on the left and right sides. A water outlet 10011 is provided in the center of the bottom. The water outlet is provided with a pipe thread for convenient connection to a hot water pipe. A water outlet temperature sensor 11 is provided at the bottom of the tank body 1001 for testing the water temperature Tc. A 1002 electrode plate 1 is installed on one side of the tank body 1001. The material used includes but is not limited to titanium, stainless steel or its alloy. A 10021 electrode plate 1 terminal is provided in the middle thereof, extending out of the tank body 1001. The 10021 electrode plate 1 terminal is provided with a connecting thread, and is covered with a 1003 sealing ring 1, and is fastened with a 1004 locking nut 1 to prevent water leakage. Similarly, the other side of the tank 1001 is equipped with an electrode plate 2 1007, made of materials including but not limited to titanium, stainless steel or alloys thereof, with a terminal 10071 of the electrode plate 2 extending out of the tank 1001 in the middle, with a connecting thread on the terminal 10071 of the electrode plate 2, and a sealing ring 1008 3, and a locking nut 1009 1 is used to tighten to prevent water leakage. On the top of the tank 1001, there is a tank cover 1006, which is made of insulating material, with a water inlet 10061 in the middle of the top, which is provided with a pipe thread for connecting the 07 water outlet pipe, and a sealing ring 1005 2 is provided between the tank cover 1006 and the tank 1001 to prevent water leakage. According to P=V 2 / R, where V is the voltage applied between the 1002 electrode plate 1 and the 1007 electrode plate 2, P is the power, i.e. Qe, and its size can be controlled by controlling the size of V, and R is the resistance applied between the 1002 electrode plate 1 and the 1007 electrode plate 2.

[0140] F is the water flow rate detected by the 01 water flow sensor; let F1 be the minimum limited water flow rate of the water heater of the present invention, and the recommended value is F1≥1L / min; Ts is the water inlet temperature value detected by the 02 water inlet temperature sensor; C is the water specific heat coefficient; Qrmin is the minimum power of the gas heating (system); Qr is the power of the gas heating (system); Qrmax is the maximum power of the gas heating (system); Ts is the user-set temperature; T1 is the water temperature value detected by the 08 intermediate temperature sensor; Qe is the power of the ohmic heating device (system); Qemin is the minimum power of the ohmic heating device (system), which is 1.8kW; Qemax is the maximum power of the ohmic heating device (system); 11 The water temperature value detected by the outlet water temperature sensor is Tc. The 09 controller is electrically connected with the 01 water flow sensor, the 02 water inlet temperature sensor, the 03 circulating water pump, the 06 gas heating (system), the 08 intermediate temperature sensor, the 10 ohmic heating (system) and the 11 outlet water temperature sensor.

[0141] According to the above settings, when the 01 water flow sensor detects F≥F1 (minimum limited water flow) and Ts≥Tj+0.2, the required water heater power is judged. If (Ts-Tj)×C×F≥Qrmin, the gas heating (system) is started, heating is performed with the power of Qr, and Qr is limited between Qrmin and Qrmax, and the gas heating (system) is controlled with the target of T1=Ts. If the 08 intermediate temperature sensor detects the temperature T1≤Ts-0.2, the 10-ohm heating device (system) is started, the 10-ohm heating device (system) runs with Qe, and Qe is limited between Qemin and Qemax, and the ohm heating device (system) is controlled with the target Tc=Ts.

[0142] When judging the required water heater power, if the required (Ts-Tj)×C×F<Qrmin, the 10-ohm heating device (system) is directly started, the 10-ohm heating device (system) runs with Qe, and limits Qe between Qemin and Qemax, and controls the ohmic heating device (system) with the target Tc=Ts.

[0143] In this embodiment, the gas heating device and the ohmic heating device are controlled separately according to the detected parameters to heat the water flowing through, so that the power of the entire gas water heater can be expanded downward to cover the heating power range of 0-1.8kW, thereby solving the problem of excessively high water temperature obtained by heating under specific conditions, making the water temperature match the set temperature, and controlling the water temperature more accurately.

[0144] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0145] Based on the same inventive concept, the embodiment of the present application also provides a water temperature heating control device for implementing the water temperature heating control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more water temperature heating control device embodiments provided below can refer to the limitations of the water temperature heating control method above, and will not be repeated here.

[0146] In an exemplary embodiment, Fig. 9 As shown, a water temperature heating control device is provided, including: a water inlet detection module 920, a gas heating module 940, a mid-range detection module 960 and an ohmic heating module 980, wherein:

[0147] The water inlet detection module 920 is used to obtain water inlet parameters; the water inlet parameters are detected by the detection device at the water inlet of the gas heating device;

[0148] The gas heating module 940 is used to determine the gas heating power of the gas heating device according to the water inlet parameters and the set temperature;

[0149] The mid-range detection module 960 is used to obtain the mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of the ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device;

[0150] The ohmic heating module 980 is used to control the working voltage of the ohmic heating device according to the mid-range parameters and the set temperature.

[0151] In one embodiment, the water temperature heating control device further includes a mode selection module, which is used to determine the target heating power according to the water inlet parameters and the set temperature before the gas heating module 940 determines the gas heating power of the gas heating device according to the water inlet parameters and the set temperature. When the target heating power reaches the basic heating power, the gas heating module 940 determines the heating power of the gas heating device according to the water inlet parameters and the set temperature; when the target heating power does not reach the basic heating power, the mid-range detection module 960 obtains the mid-range parameters of the water outlet of the gas heating device.

[0152] In one embodiment, the water temperature heating control device also includes a start judgment module, which is used to determine the target heating power according to the water inlet parameters and the set temperature after the water inlet detection module 920 obtains the water inlet parameters and before the mode selection module determines the target heating power according to the water inlet parameters and the set temperature, when the water inlet parameters meet the heating start conditions.

[0153] In one embodiment, the ohmic heating module 980 is further used to determine the electric heating power of the ohmic heating device according to the mid-range parameters and the set temperature, and to determine the working voltage of the ohmic heating device based on the structural parameters of the ohmic heating device and the electric heating power.

[0154] In one embodiment, the ohmic heating module 980 is also used to control the ohmic heating device to stop working when the deviation value between the mid-range parameter and the set temperature is less than a preset deviation range; when the deviation value between the mid-range parameter and the set temperature is greater than or equal to the preset deviation range, the electric heating power of the ohmic heating device is determined according to the mid-range parameter and the set temperature.

[0155] In one embodiment, the water temperature heating control device further includes a feedback adjustment module, which is used to obtain the water outlet parameters of the water outlet of the ohmic heating device after the ohmic heating module 980 controls the working voltage of the ohmic heating device according to the mid-range parameters and the set temperature. When the water outlet parameters do not match the set temperature, the working voltage of the ohmic heating device is adjusted based on the water outlet parameters and the set temperature.

[0156] Each module in the above water temperature heating control device can be implemented in whole or in part by software, hardware and a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0157] In an exemplary embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be as shown in FIG. Fig.10 As shown. The computer device includes a processor, a memory, an input / output interface, a communication interface, a display unit and an input device. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface, the display unit and the input device are connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be implemented through WIFI, a mobile cellular network, near field communication (NFC) or other technologies. When the computer program is executed by the processor, a water temperature heating control method is implemented. The display unit of the computer device is used to form a visually visible picture, which can be a display screen, a projection device or a virtual reality imaging device. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device shell, or an external keyboard, touchpad or mouse.

[0158] Those skilled in the art will understand that Fig.10 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0159] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0160] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0161] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0162] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, an artificial intelligence (AI) processor, etc., but are not limited to this.

[0163] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0164] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A water temperature heating control method, characterized in that: The method comprises: Obtaining water inlet parameters; the water inlet parameters are detected by a detection device at the water inlet of the gas heating device; Determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature; Obtaining mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of an ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device; The operating voltage of the ohmic heating device is controlled according to the mid-range parameter and the set temperature.

2. The method according to claim 1, characterized in that Before determining the gas heating power of the gas heating device according to the water inlet parameter and the set temperature, the method further includes: Determine the target heating power according to the water inlet parameter and the set temperature; When the target heating power reaches the basic heating power, determining the heating power of the gas heating device according to the water inlet parameter and the set temperature is performed; When the target heating power does not reach the basic heating power, the step of obtaining the mid-range parameters of the water outlet of the gas heating device is performed.

3. The method according to claim 2, characterized in that After acquiring the water inlet parameter and before determining the target heating power according to the water inlet parameter and the set temperature, the method further includes: In the case where the water inlet parameter meets the heating start condition, the step of determining the target heating power according to the water inlet parameter and the set temperature is performed.

4. The method according to claim 1, characterized in that The step of controlling the working voltage of the ohmic heating device according to the mid-range parameter and the set temperature comprises: determining the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature; The operating voltage of the ohmic heating device is determined based on the structural parameters of the ohmic heating device and the electrical heating power.

5. The method according to claim 4, characterized in that Before determining the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature, the method further includes: When the deviation value between the mid-range parameter and the set temperature is less than a preset deviation range, controlling the ohmic heating device to stop working; In the case where the deviation value between the mid-range parameter and the set temperature is greater than or equal to the preset deviation range, the step of determining the electric heating power of the ohmic heating device according to the mid-range parameter and the set temperature is performed.

6. The method according to claim 1, characterized in that After controlling the working voltage of the ohmic heating device according to the mid-range parameter and the set temperature, the method further includes: Obtaining water outlet parameters of the water outlet of the ohmic heating device; In the case where the water outlet parameter does not match the set temperature, the operating voltage of the ohmic heating device is adjusted based on the water outlet parameter and the set temperature.

7. A water temperature heating control device, characterized in that: The device comprises: A water inlet detection module is used to obtain water inlet parameters; the water inlet parameters are detected by a detection device at the water inlet of the gas heating device; A gas heating module, used for determining the gas heating power of the gas heating device according to the water inlet parameters and the set temperature; A mid-range detection module, used to obtain mid-range parameters of the water outlet of the gas heating device; the water outlet of the gas heating device is connected to the water inlet of an ohmic heating device, and the ohmic heating device is used to heat the water output from the water outlet of the gas heating device; The ohmic heating module is used to control the working voltage of the ohmic heating device according to the mid-range parameter and the set temperature.

8. A water temperature control device, characterized in that: The device includes a detection device and a controller, the detection device is connected to the controller, the controller is connected to the water heater, the detection device is arranged on the water heater, and is used to collect water inlet parameters and mid-range parameters, and transmit them to the controller, and the controller is used to control the water temperature heating of the water heater based on the method described in any one of claims 1-6.

9. A water heating device, characterized in that: The device includes a water heater and a water temperature control device as described in claim 8, the water heater includes a gas heating device and an ohmic heating device, the water outlet of the gas heating device is connected to the water inlet of the ohmic heating device, the detection device of the water temperature control device is arranged at the water inlet of the gas heating device and the water outlet of the gas heating device, and the controller of the water temperature control device is connected to the gas heating device and the ohmic heating device.

10. The water heating device according to claim 9, characterized in that: The detection device is also arranged at the water outlet of the ohmic heating device, and is used to collect water outlet parameters of the water outlet of the ohmic heating device and transmit them to the controller.

11. The water heating device according to claim 9, characterized in that: The ohmic heating device includes a water tank, a first electrode plate and a second electrode plate. The water tank has a water inlet and a water outlet. The water inlet of the water tank is connected to the water outlet of the gas heating device. The first electrode plate and the second electrode plate are arranged at relative positions in the water tank and are both connected to the controller for heating the water between the first electrode plate and the second electrode plate.

Images