CN117760085A

CN117760085A - Heating control method and device, water heater and storage medium

Info

Publication number: CN117760085A
Application number: CN202211136924.5A
Authority: CN
Inventors: 高志强; 郭少波; 陈朋举; 张晓奇; 杜顺祥; 冯晓赟; 王者华; 曹冠忠
Original assignee: Zhengzhou Haier New Energy Technology Co ltd; Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd; Qingdao Haier New Energy Electric Appliance Co Ltd
Current assignee: Zhengzhou Haier New Energy Technology Co ltd; Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd; Qingdao Haier New Energy Electric Appliance Co Ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2024-03-26

Abstract

The invention discloses a heating control method, a device, a water heater and a storage medium, wherein the heating control method is applied to the water heater, the water heater comprises a water tank, a heat pump and a main heating pipe which are acted on the whole water tank, the water heater also comprises an auxiliary heating pipe which is acted on a water outlet of the water tank, and the method comprises the following steps: determining the outflow quantity of water with the temperature in the water tank exceeding the preset water temperature of the water heater; when the outflow exceeds the preset water quantity, controlling the auxiliary heating pipe to heat the water in the water tank; when the outflow quantity is not more than the preset water quantity, the heat pump and the main heating pipe are controlled to heat the water in the water tank. When the outflow quantity is not more than the preset water quantity, the high-temperature water in the water tank is more, and the heat pump and the main heating pipe are started to slowly heat the whole water tank; when the outflow exceeds the preset water quantity, the fact that the high-temperature water in the water tank flows out is indicated, and the auxiliary heating pipe is started to rapidly heat the water in the water tank, so that the user is prevented from being scalded due to the fact that the water temperature is guaranteed, and meanwhile the water outlet temperature is too high.

Description

Heating control method and device, water heater and storage medium

Technical Field

The present invention relates to household electrical appliance control technology, and in particular, to a heating control method and apparatus, a water heater, and a storage medium.

Background

The heat pump water heater generally refers to an air energy water heater, the working principle of the heat pump water heater is very similar to that of an air conditioner, a small amount of electric energy is adopted to drive a compressor to operate, high-pressure liquid working medium is evaporated into a gas state in an evaporator after passing through an expansion valve, and a large amount of heat energy is absorbed from the air; the gaseous working medium is compressed into high-temperature and high-pressure liquid by a compressor, and then enters a condenser to release heat so as to heat water. Compared with the electric water heater, the heat pump water heater is more energy-saving.

The heat pump in the heat pump water heater generally acts on the whole liner of the water heater, and the heating speed is low, so that an electric heater (such as a heating pipe) is generally arranged on the heat pump water heater to assist in heating. However, the water heater provided with the heat pump and the electric heater easily causes excessive water outlet temperature, and user scald is caused.

Disclosure of Invention

The invention provides a heating control method, a heating control device, a water heater and a storage medium, which can prevent users from being scalded due to overhigh water outlet temperature while guaranteeing water temperature.

In a first aspect, the present invention provides a heating control method applied to a water heater, where the water heater includes a water tank, and a heat pump and a main heating pipe acting on the whole water tank, and the water heater further includes an auxiliary heating pipe acting on a water outlet of the water tank, and the method includes:

determining the outflow of water in the water tank at a temperature exceeding a preset water temperature of the water heater;

when the outflow exceeds a preset water amount, controlling the auxiliary heating pipe to heat the water in the water tank;

and when the outflow quantity does not exceed the preset water quantity, controlling the heat pump and the main heating pipe to heat the water in the water tank.

In a second aspect, the present invention provides a heating control device applied to a water heater, the water heater including a water tank, and a heat pump and a main heating pipe acting on the whole water tank, the water heater further including an auxiliary heating pipe acting on a water outlet of the water tank, the device including:

the determining module is used for determining the outflow quantity of water with the temperature in the water tank exceeding the preset water temperature of the water heater;

the first control module is used for controlling the auxiliary heating pipe to heat the water in the water tank when the outflow exceeds a preset water amount;

and the second control module is used for controlling the heat pump and the main heating pipe to heat the water in the water tank when the outflow quantity does not exceed the preset water quantity.

In a third aspect, the present invention also provides a water heater, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the heating control method according to any one of the aspects of the present invention when executing the program.

In a fourth aspect, embodiments of the present invention further provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements a heating control method according to any one of the aspects of the present invention.

In the scheme of the invention, the water heater comprises a water tank, a heat pump and a main heating pipe which are acted on the whole water tank, and an auxiliary heating pipe which is acted on a water outlet of the water tank, wherein whether the auxiliary heating pipe is started or the heat pump and the main heating pipe are started can be determined according to the outflow of water exceeding the preset water temperature in the water tank of the water heater, namely, when the outflow does not exceed the preset water quantity, the heat pump and the main heating pipe are utilized to heat the water in the water tank, and when the outflow exceeds the preset water quantity, the auxiliary heating pipe is utilized to heat the water in the water tank. When the outflow quantity is not more than the preset water quantity, the high-temperature water in the water tank is more, and the heat pump and the main heating pipe are started to slowly heat the whole water tank; when the outflow exceeds the preset water quantity, the fact that the high-temperature water in the water tank flows out is indicated, and the auxiliary heating pipe is started to rapidly heat the water in the water tank, so that the user is prevented from being scalded due to the fact that the water temperature is guaranteed, and meanwhile the water outlet temperature is too high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic flow chart of a heating control method provided by the invention;

FIG. 2 is a schematic view of a water heater according to the present invention;

FIG. 3 is a schematic illustration of one method of determining outflow of water exceeding a preset water temperature provided by the present invention;

FIG. 4 is an exemplary graph of determining outflow of water exceeding a preset water temperature provided by the present invention;

fig. 5 is an exemplary diagram of a heating control method provided by the present invention;

FIG. 6 is a schematic view of a heating control device according to the present invention;

FIG. 7 is a schematic view of another construction of the water heater according to the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.

Fig. 1 is a schematic flow chart of a heating control method provided by the present invention, where the method may be performed by a heating control device provided by an embodiment of the present invention, and the device may be implemented in software and/or hardware. In a specific embodiment, the device may be integrated in a water heater. The following examples will illustrate the integration of the device into a water heater.

Before describing the control method of the embodiment of the present invention, a water heater of the embodiment of the present invention is described first, as shown in fig. 2, where the water heater of the embodiment of the present invention may be a heat pump water heater, and the heat source of the water heater may be an air source, and the water heater may include a water tank, a heat pump and a main heating pipe acting on the whole water tank, an auxiliary heating pipe acting on the water outlet of the water tank, and hot water entering from the bottom of the water tank and hot water exiting from the top of the water tank. The main heating pipe is generally arranged at the middle lower part of the water tank, and the auxiliary heating pipe is generally arranged at the water outlet of the water tank. The heating power of the auxiliary heating pipe can be larger than that of the main heating pipe, the shape of the auxiliary heating pipe can be different from that of the main heating pipe, for example, the shape of the auxiliary heating pipe can be irregular, the contact area between the irregular shape and water can be increased, the effect of local rapid heating of the water is achieved, and the shape of the main heating pipe can be regular. Typically, the primary heating tube may be activated simultaneously with the heat pump and the secondary heating tube may be activated separately.

In addition, the water heater may further include a temperature sensor for measuring the water temperature in the tank, a flow sensor for detecting the current water flow rate, and a water mixing valve for controlling the water mixing. Wherein the temperature sensor may include one or more, and when there is only one temperature sensor for measuring the water temperature in the tank, the one temperature sensor may be disposed at the middle of the tank; when there are a plurality of temperature sensors for measuring the water temperature in the tank, the temperature sensors may be disposed at different positions inside the tank, and the water temperature in the tank may be determined based on an average value of measurement data of the plurality of temperature sensors. For example, when there are two temperature sensors for measuring the water temperature in the tank, one temperature sensor may be provided at the upper middle portion of the tank, and the other sensor may be provided at the lower middle portion of the tank, and the average value of the measured data of the two temperature sensors is determined as the current water temperature in the tank. Because the water heater environment is airtight, the water outlet flow is equal to the water inlet flow, so that the flow sensor can be arranged at the water inlet or at the water outlet, and the flow sensor is arranged on a pipeline of the water outlet as shown in fig. 2. The water mixing valve can be arranged on the water path of the water outlet and used for controlling the mixing quantity or mixing proportion of the cold water and the hot water.

For the auxiliary heating pipe, in the water heater shown in fig. 2, the auxiliary heating pipe is arranged at the position, close to the water outlet, of the top end inside the water tank, and in practical application, the auxiliary heating pipe can also be arranged on a water path of the water outlet outside the water tank, for example, the auxiliary heating pipe can be arranged around a pipeline of the water outlet, or the auxiliary heating pipe can be arranged in a pipeline of the water outlet, and the specific arrangement mode can be determined according to specific requirements.

The structure of the water heater shown in fig. 2 is merely an example, and does not constitute a sole limitation of the structure of the water heater. With continued reference to fig. 1, the control method of the water heater according to the embodiment of the present invention specifically includes the following steps:

step 101, determining the outflow quantity of water with the temperature exceeding the preset water temperature of the water heater in the water tank.

For example, a water quantity sensor may be provided on a waterway of a water outlet of the water tank, and an outflow quantity of water having a temperature exceeding a preset water temperature of the water heater in the water tank, which represents a water quantity, may be expressed in liters (L), may be determined using detection data of the provided water quantity sensor. The preset water temperature can be set according to actual requirements, for example, 45 ℃, 50 ℃ and the like. For example, the water temperature in the water tank, that is, the water temperature in the water tank, may be continuously detected by a temperature sensor provided in the water tank, and the time at which the outflow is started to be recorded may be determined according to the change of the water temperature in the water tank, and the outflow of water exceeding the preset water temperature may be obtained by starting to record the outflow of water from the water heater by a water volume sensor at the time.

And 102, when the outflow exceeds the preset water quantity, controlling the auxiliary heating pipe to heat the water in the water tank.

The preset water quantity can be set according to the setting position of the temperature sensor in the water tank and the volume of the water tank, for example, when only one temperature sensor is arranged in the middle of the water tank, the preset water quantity can be set according to the volume of the water tank above the temperature sensor; when there are two or more temperature sensors, the temperature sensors may be disposed at different positions in the water tank, respectively, and the preset water amount may be set according to the volume of the water tank above the uppermost temperature sensor in the water tank, and the latter embodiment will be described with respect to a case where there is only one temperature sensor.

When the outflow of water with the temperature exceeding the preset water temperature of the water heater exceeds the preset water quantity, the water with the higher temperature in the water tank is indicated to flow out, and at the moment, the whole water temperature in the water tank is lower, so that the water temperature needs to be quickly increased to ensure the water temperature. In the invention, the heat pump and the main heating pipe act on the whole water tank, the volume of the water tank is usually larger, for example, 150 liters and 200 liters can be needed, the time for heating the whole water tank can be longer, for example, 1 hour and 2 hours can be needed, and if hot water is needed suddenly, the heat pump and the main heating pipe can not meet the requirements. The auxiliary heating pipe acts on a part (water outlet) of the water tank, can rapidly heat the local water, and can rapidly meet the requirement if water is needed urgently by starting the auxiliary heating pipe. Therefore, under the condition, the auxiliary heating pipe can be started to rapidly raise the water temperature, and meanwhile, as the integral water temperature in the water tank is low, the starting water temperature of the started auxiliary heating pipe is low, and the situation that the user scalds due to the fact that the water outlet temperature is too high after the auxiliary heating pipe is started is avoided.

Because the heat pump, the main heating pipe and the auxiliary heating pipe are started by a power supply, the power supply is limited by cost, and the power supply circuit is usually a common load circuit, and the three are started simultaneously, the overload of the circuit can be possibly caused. For example, if the maximum load limit of the power supply circuit is 3000 watts, the load for simultaneously opening the heat pump and the main heating pipe is 2800 watts, and the load for opening the auxiliary heating pipe is 2500 watts, the heat pump, the main heating pipe and the auxiliary heating pipe are prevented from being simultaneously started.

And 103, controlling the heat pump and the main heating pipe to heat the water in the water tank when the outflow quantity does not exceed the preset water quantity.

When the outflow of water with the temperature exceeding the preset water temperature of the water heater in the water tank does not exceed the preset water amount, the fact that the water with the higher temperature in the water tank does not flow out completely is indicated, and the water with the higher water temperature in the water tank still exists in the water tank at the moment.

In a specific implementation, the water heater of the present invention may have a first flag bit and a second flag bit, where, initially, the first flag bit and the second flag bit are both set to 0, where the first flag bit is used to record that the water temperature in the tank changes from being lower than a first preset temperature to exceeding the first preset temperature, for example, the first flag bit may be set to 1 when the water temperature in the tank changes from being lower than the first preset temperature to exceeding the first preset temperature, and at this time, the second flag bit is set to 0; the second flag bit is used for recording that the water temperature in the tank drops from exceeding the second preset temperature to the second preset temperature, for example, the second flag bit can be set to 1 when the water temperature in the tank drops from exceeding the second preset temperature to the second preset temperature, and at the moment, the first flag bit is set to 0. The first preset temperature is greater than the second preset temperature, which is greater than the preset water temperature, for example, the preset water temperature is 45 ℃, the second preset temperature is 47 ℃, and the first preset temperature is 48 ℃. The water volume recording time can be determined according to the setting conditions of the two flag bits, so that the water volume of the water tank is recorded at the water volume recording time to obtain the outflow volume of water with the temperature exceeding the preset water temperature of the water heater in the water tank, and the method for specifically determining the outflow volume of water with the temperature exceeding the preset water temperature of the water heater in the water tank can be shown as fig. 3, and comprises the following steps:

in step 1011, the water temperature in the tank is monitored.

In particular, due to the start-stop of the water and the heating device, the water temperature in the tank may fluctuate, such as the water temperature in the tank may rise or fall. The water temperature in the water tank can be continuously monitored by using a temperature sensor arranged in the water tank to obtain a real-time water temperature value, and if the real-time water temperature value is changed from being lower than a first preset temperature to exceeding the first preset temperature, the first mark position is 1 (the first mark position can be 0 at the beginning); if the real-time water temperature value is reduced from a certain temperature exceeding the first preset temperature to the second preset temperature, the second flag position is 1 (the second flag bit may be 0 in the initial stage), and at this time, the first flag position is 0.

Step 1012, determining the water quantity recording moment according to the change condition of the water temperature in the tank.

The time when the water temperature in the tank drops from the first preset temperature to the second preset temperature can be determined according to the record of the first zone bit and the record of the second zone bit, and the time is determined as the water volume record time. For example, in the previous example, the time when the first flag bit is 0 and the second flag bit is 1 may be determined as the water amount recording time.

Step 1013, recording the water output of the water tank from the water output recording time to obtain the outflow of water with the temperature exceeding the preset water temperature of the water heater in the water tank.

Specifically, a water flow sensor is arranged on a waterway of a water outlet of the water tank, and the water yield of the water tank is recorded from the water yield recording moment, so that the outflow is obtained. The logic for determining the outflow is shown in fig. 4, where the first flag bit is denoted by B1, the second flag bit is denoted by B2, the water temperature in the tank is denoted by Tw, the first preset temperature is denoted by T1, the second preset temperature is denoted by T2, and the recorded outflow of water having a temperature in the tank exceeding the preset water temperature of the water heater is denoted by Q. FIG. 4 shows that both B1 and B2 are initially 0, and when the water Wen Chaoguo in the tank is at a first preset temperature (Tw > T1), B1 is set to 1, B2 is set to 0, and Q is cleared; thereafter, the water temperature in the tank is lowered until the water temperature in the tank is lowered to a second preset temperature (Tw is less than or equal to T2), B2 is set to 1, B1 is set to 0, and recording of Q is started.

The water quantity recording time is determined by utilizing the recording conditions of the two zone bits, so that the water quantity recording time can be accurately determined; setting two temperatures higher than the preset water temperature is equivalent to setting double buffer flow for the water heater, avoiding the situation that the water outlet temperature is too high in the follow-up process, combining with recording the water outlet from the water outlet recording moment, the recorded accuracy of the outflow of water exceeding the preset water temperature can be ensured, and the follow-up control accuracy is improved.

In specific implementation, when the outflow volume of water with the temperature in the water tank exceeding the preset water temperature of the water heater does not exceed the preset water volume, controlling the heat pump and the main heating pipe to heat the water in the water tank can include:

when the outflow quantity does not exceed the preset water quantity, acquiring the water temperature in the water tank;

if the water temperature in the water tank does not reach the preset water temperature, controlling the heat pump and the main heating pipe to heat the water in the water tank; and stopping heating if the water temperature in the tank reaches the preset water temperature.

When the water with the over-high temperature in the water tank does not flow out completely, the current water temperature in the water tank is obtained, if the water temperature in the water tank does not reach the preset water temperature, but the water with the over-high temperature is still present in the water tank at the moment, in order to avoid scalding caused by the over-high water temperature when the auxiliary heating pipe is started, the auxiliary heating pipe is not started at the moment, and the heat pump and the main heating pipe are started to slowly heat the water in the water tank so as to ensure the water temperature as much as possible; at this time, if the water temperature in the tank reaches the preset water temperature, all heating devices can be turned off to avoid overhigh water temperature.

In a specific implementation, when the outflow volume of water with the temperature in the water tank exceeding the preset water temperature of the water heater exceeds the preset water volume, controlling the auxiliary heating pipe to heat the water in the water tank may include:

when the outflow exceeds the preset water quantity, detecting the current water flow of the water heater;

when the current water flow exceeds the preset flow and the duration time exceeding the preset flow exceeds the preset time, acquiring the water temperature in the water tank; if the water temperature in the tank reaches the starting temperature threshold value of the auxiliary heating pipe but does not reach the preset water temperature, controlling the auxiliary heating pipe to heat the water in the tank, wherein the starting temperature threshold value is smaller than the preset water temperature; if the water temperature in the tank does not reach the starting temperature threshold value of the auxiliary heating pipe, controlling the heat pump and the main heating pipe to heat the water in the water tank;

when the current water flow does not exceed the preset flow or the current water flow exceeds the preset flow but the duration of exceeding the preset flow does not exceed the preset duration, determining whether the water temperature in the tank exceeds the preset water temperature; if the water temperature in the water tank does not exceed the preset water temperature, controlling the heat pump and the main heating pipe to heat the water in the water tank; if the water temperature in the tank exceeds the preset water temperature, all heating devices are turned off, and heating is stopped.

Specifically, a current water flow rate of the water heater, which may be also referred to as a flow rate, may be detected by a flow sensor provided on the water heater, and may represent an amount of water flowing through the water tank per unit time, for example, the unit of water flow rate may be liters per minute (L/min). The preset flow and the preset duration are mainly set for the auxiliary heating pipe and are mainly used for determining the opening and closing states of the auxiliary heating pipe, and the preset flow can be set according to water requirements and equipment performance of the auxiliary heating pipe. The preset time period may be, for example, 10 seconds, 15 seconds, or the like. The duration refers to a duration in which the state in which the water flow rate exceeds the preset flow rate is continued.

If the current water flow exceeds the preset flow and the duration of the current water flow exceeds the preset duration, the water heater is in a stable water use state, such as a user is bathing, and the like, and timely and sufficient hot water supply is needed at the moment; if the water temperature in the tank does not reach the starting temperature threshold value of the auxiliary heating pipe, the auxiliary heating pipe is not started, and because the water temperature in the tank is lower, the starting of the auxiliary heating pipe can not enable the water temperature to meet the requirement, the heat pump and the main heating pipe can be started to slowly heat the water in the water tank; if the water temperature in the box reaches the starting temperature threshold value of the auxiliary heating pipe but does not reach the preset water temperature, the fact that the water temperature in the box is lower at the moment is indicated that the starting of the auxiliary heating pipe can enable the water temperature to meet the requirements, the fact that the water outlet temperature is too high is avoided, and the auxiliary heating pipe can be started at the moment so that the water outlet temperature meets the requirements of users as soon as possible.

If the current water flow does not exceed the preset flow or the current water flow exceeds the preset flow, but the duration of the current water flow exceeding the preset flow does not exceed the preset duration, the water heater is not in a water consumption state currently or in an unstable water consumption state, for example, a user only turns on water for a few seconds to wash hands, and at the moment, no urgent requirement is provided for supplying hot water to the water heater; the current water temperature in the tank can be continuously judged, and if the water temperature in the tank does not reach the preset water temperature, the heat pump and the main heating pipe can be started to slowly heat the water in the water tank; if the water temperature in the tank reaches the preset water temperature, the water in the tank can be not heated continuously, and all heating devices are turned off, so that the energy consumption is saved.

Let Q denote the outflow of water with a temperature in the tank exceeding the preset water temperature of the water heater, V denote the preset water quantity, Q denote the current water flow, Q1 denote the preset start-up flow of the auxiliary heating pipe, Q2 denote the preset shut-down flow of the auxiliary heating pipe, Q1 is greater than Q2, T denote the duration of the state in which the water flow exceeds the preset flow, T1 denote the preset duration, tw denote the water temperature in the tank, tset denote the preset water temperature, T denote the activation temperature threshold of the auxiliary heating pipe, T is less than Tset, the control logic can be as shown in fig. 5 after determining the outflow of water with a temperature in the tank exceeding the preset water temperature of the water heater:

if Q is more than or equal to V, indicating that the water with higher temperature in the water tank flows out completely, determining whether the current water flow exceeds the preset flow and whether the duration of the current water flow exceeds the preset duration, namely determining whether the condition Q is more than or equal to Q1 and t is more than or equal to t1; if the condition q is more than or equal to q1 and T is more than or equal to T1, the water heater is in a stable water use state, q is more than or equal to q2, timely and sufficient hot water supply is needed, the water temperature Tw in the tank is continuously judged, and if Tw is less than T, namely the water temperature in the tank does not reach the starting temperature threshold value of the auxiliary heating pipe, the heat pump and the main heating pipe are utilized to heat the water in the water tank; if T is less than Tw and less than Tset, namely the water temperature in the tank reaches the starting temperature threshold value of the auxiliary heating pipe and the current water temperature does not reach the required water temperature, the auxiliary heating pipe can be used for heating the water in the water tank, so that the required hot water can be provided for a user timely and quickly; if Tw is more than or equal to Tset, stopping heating; if q is not less than or equal to q1 and t is not less than or equal to t1, the water heater is not in a water use state, or the water heater is in an unstable water use state, whether the water temperature Tw in the tank reaches the preset water use temperature can be judged, if Tw is not less than or equal to Tset, the water temperature Tw in the tank does not reach the preset water use temperature, and the heat pump and the main heating pipe can be used for slowly heating the water in the water tank; if Tw > Tset, heating is stopped. If b1=0 and b2=0, a judgment is made as to whether or not the condition q is equal to or greater than q1 and t is equal to or greater than t1 is satisfied.

If Q < V, it shows that the water with higher temperature in the water tank does not flow out completely, the water temperature in the water tank is higher, the water outlet temperature is easy to be too high when the auxiliary heating pipe is started, the water temperature Tw in the water tank can be continuously judged, if Tw is less than or equal to Tset, the heat pump and the main heating pipe can be utilized to slowly heat the water in the water tank, and if Tw is more than Tset, the heating is stopped.

In this embodiment, the preset flow may be set to two, that is, the preset start flow q1 and the preset close flow q2, where the preset start flow is greater than the preset close flow, for example, the preset start flow may be 2.5L/min and the preset close flow may be 1.5L/min. In principle, when the current water flow exceeds the preset starting flow and the duration exceeding the preset starting flow exceeds the preset duration, the preliminary meeting of the starting condition of the auxiliary heating pipe can be determined; when the current water flow is smaller than the preset closing flow, the preliminary closing condition of the auxiliary heating pipe is determined to be met, so that the influence of frequent start and stop of the auxiliary heating pipe on the service life of the auxiliary heating pipe can be avoided.

Fig. 6 is a schematic structural diagram of a heating control device according to an embodiment of the present invention, where the device is applied to a water heater, the water heater includes a water tank, and a heat pump and a main heating pipe acting on the whole water tank, and the water heater further includes an auxiliary heating pipe acting on a water outlet of the water tank, and the device includes:

a determining module 401 for determining an outflow of water having a temperature in the water tank exceeding a preset water temperature of the water heater;

a first control module 402, configured to control the auxiliary heating pipe to heat water in the water tank when the outflow exceeds a preset amount of water;

and a second control module 403, configured to control the heat pump and the main heating pipe to heat water in the water tank when the outflow does not exceed the preset water amount.

In one embodiment, the determining module 401 is specifically configured to:

monitoring the water temperature in the water tank;

determining water quantity recording time according to the change condition of the water temperature in the tank;

and recording the water outlet quantity of the water tank from the water quantity recording moment to obtain the outflow quantity.

In one embodiment, the determining module 401 determines the water volume recording time according to the change condition of the water temperature in the tank, including:

determining the moment when the water temperature in the tank is reduced from a first preset temperature to a second preset temperature, and obtaining the water quantity recording moment, wherein the first preset temperature is higher than the second preset temperature, and the second preset temperature is higher than the preset water temperature.

In an embodiment, the water heater has a first flag bit and a second flag bit, the first flag bit is used for recording that the water temperature in the tank exceeds the first preset temperature, the second flag bit is used for recording that the water temperature in the tank drops to the second preset temperature, and the determining module 401 determines a time when the water temperature in the tank drops from the first preset temperature to the second preset temperature, including:

and determining the moment when the water temperature in the tank is reduced from the first preset temperature to the second preset temperature according to the record of the first zone bit and the record of the second zone bit.

In an embodiment, a temperature sensor is disposed in the middle of the water tank, water flows into the bottom and out from the top of the water tank, and the determining module 401 monitors the water temperature in the water tank, including:

monitoring the water temperature in the water tank by using the temperature sensor;

wherein the preset water volume is set according to the volume of the water tank above the temperature sensor.

In one embodiment, the second control module 403 is specifically configured to:

and if the water temperature in the water tank does not reach the preset water temperature, controlling the heat pump and the main heating pipe to heat the water in the water tank.

In one embodiment, the first control module 402 is specifically configured to:

detecting the current water flow of the water heater when the outflow exceeds the preset water quantity;

acquiring the water temperature in the water tank when the current water flow exceeds a preset flow and the duration time exceeding the preset flow exceeds a preset duration time;

if the water temperature in the tank reaches the starting temperature threshold value of the auxiliary heating pipe but does not reach the preset water temperature, controlling the auxiliary heating pipe to heat the water in the water tank, wherein the starting temperature threshold value is smaller than the preset water temperature.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional modules is illustrated, and in practical application, the above-described functional allocation may be performed by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to perform all or part of the functions described above. The specific working process of the functional module described above may refer to the corresponding process in the foregoing method embodiment, and will not be described herein.

The water heater comprises a water tank, a heat pump and a main heating pipe which are acted on the whole water tank, and an auxiliary heating pipe which is acted on a water outlet of the water tank, wherein whether the auxiliary heating pipe is started or the heat pump and the main heating pipe are started can be determined according to the outflow of water exceeding the preset water temperature in the water tank of the water heater, namely, when the outflow does not exceed the preset water quantity, the heat pump and the main heating pipe are utilized to heat the water in the water tank, and when the outflow exceeds the preset water quantity, the auxiliary heating pipe is utilized to heat the water in the water tank. When the outflow quantity is not more than the preset water quantity, the high-temperature water in the water tank is more, and the heat pump and the main heating pipe are started to slowly heat the whole water tank; when the outflow exceeds the preset water quantity, the fact that the high-temperature water in the water tank flows out is indicated, and the auxiliary heating pipe is started to rapidly heat the water in the water tank, so that the user is prevented from being scalded due to the fact that the water temperature is guaranteed, and meanwhile the water outlet temperature is too high.

The embodiment of the invention also provides a water heater, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the heating control method provided by any embodiment is realized when the processor executes the program.

The embodiment of the invention also provides a computer readable medium, on which a computer program is stored, which when executed by a processor, implements the heating control method provided in any of the above embodiments.

Referring now to FIG. 7, a schematic diagram of a computer system 500 suitable for use in implementing a water heater in accordance with an embodiment of the present invention is shown. The water heater shown in fig. 7 is only an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

As shown in fig. 7, the computer system 500 includes a Central Processing Unit (CPU) 501, which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 502 or a program loaded from a storage section 508 into a Random Access Memory (RAM) 503. In the RAM503, various programs and data required for the operation of the computer system 500 are also stored. The CPU 501, ROM 502, and RAM503 are connected to each other through a bus 504. An input/output (I/O) interface 505 is also connected to bus 504.

The following components are connected to the I/O interface 505: an input section 506 including a keyboard, a mouse, and the like; an output portion 507 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker, and the like; a storage portion 508 including a hard disk and the like; and a communication section 509 including a network interface card such as a LAN card, a modem, or the like. The communication section 509 performs communication processing via a network such as the internet. The drive 510 is also connected to the I/O interface 505 as needed. A removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 510 as needed so that a computer program read therefrom is mounted into the storage section 508 as needed.

In particular, according to embodiments of the present disclosure, the processes described above with reference to flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable medium, the computer program comprising program code for performing the method shown in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network via the communication portion 509, and/or installed from the removable media 511. The above-described functions defined in the system of the present invention are performed when the computer program is executed by a Central Processing Unit (CPU) 501.

The computer readable medium shown in the present invention may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present invention, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The modules and/or units involved in the embodiments of the present invention may be implemented in software, or may be implemented in hardware. The described modules and/or units may also be provided in a processor, e.g., may be described as: a processor includes a determination module, a first control module, and a second control module. The names of these modules do not constitute a limitation on the module itself in some cases.

As another aspect, the present invention also provides a computer-readable medium that may be contained in the apparatus described in the above embodiments; or may be present alone without being fitted into the device. The computer readable medium carries one or more programs which, when executed by a device, cause the device to include: determining the outflow of water in the water tank at a temperature exceeding a preset water temperature of the water heater; when the outflow exceeds a preset water amount, controlling the auxiliary heating pipe to heat the water in the water tank; and when the outflow quantity does not exceed the preset water quantity, controlling the heat pump and the main heating pipe to heat the water in the water tank.

According to the technical scheme of the embodiment of the invention, the water heater comprises a water tank, a heat pump and a main heating pipe which are acted on the whole water tank, and an auxiliary heating pipe which is acted on a water outlet of the water tank, wherein whether the auxiliary heating pipe is started or the heat pump and the main heating pipe are started can be determined according to the outflow of water exceeding the preset water temperature in the water tank of the water heater, namely, when the outflow does not exceed the preset water quantity, the heat pump and the main heating pipe are utilized to heat the water in the water tank, and when the outflow exceeds the preset water quantity, the auxiliary heating pipe is utilized to heat the water in the water tank. When the outflow quantity is not more than the preset water quantity, the high-temperature water in the water tank is more, and the heat pump and the main heating pipe are started to slowly heat the whole water tank; when the outflow exceeds the preset water quantity, the fact that the high-temperature water in the water tank flows out is indicated, and the auxiliary heating pipe is started to rapidly heat the water in the water tank, so that the user is prevented from being scalded due to the fact that the water temperature is guaranteed, and meanwhile the water outlet temperature is too high.

The above embodiments do not limit the scope of the present invention. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives can occur depending upon design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A heating control method, characterized in that it is applied to a water heater, the water heater includes a water tank, and a heat pump and a main heating pipe acting on the whole water tank, the water heater further includes an auxiliary heating pipe acting on a water outlet of the water tank, the method includes:

2. The method of claim 1, wherein said determining the outflow of water from the tank at a temperature exceeding a preset water temperature of the water heater comprises:

monitoring the water temperature in the water tank;

3. The method according to claim 2, wherein said determining the water volume recording time according to the change of the water temperature in the tank comprises:

4. A method according to claim 3, wherein the water heater has a first flag bit for recording that the in-tank water temperature exceeds the first preset temperature and a second flag bit for recording that the in-tank water temperature falls to the second preset temperature, the determining the time at which the in-tank water temperature falls from the first preset temperature to the second preset temperature comprising:

5. The method according to claim 2, wherein a temperature sensor is arranged in the middle of the water tank, water enters from the bottom of the water tank and water exits from the top of the water tank, and the monitoring of the water temperature in the water tank comprises:

6. The method of claim 1, wherein controlling the heat pump and the main heating pipe to heat the water in the tank when the outflow does not exceed the preset amount of water comprises:

7. The method of claim 1, wherein controlling the auxiliary heating pipe to heat water in the water tank when the outflow exceeds a preset amount of water comprises:

8. A heating control device, characterized in that it is applied to a water heater, said water heater comprising a water tank and a heat pump and a main heating pipe acting on the whole of said water tank, said water heater further comprising an auxiliary heating pipe acting on the water outlet of said water tank, said device comprising:

9. A water heater comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the heating control method of any one of claims 1 to 7 when executing the program.

10. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, implements the heating control method according to any one of claims 1 to 7.