Circulation control method and system for gas water heater, electronic device and storage medium

Abstract

The application discloses a circulating control method and system of a gas water heater, an electronic device and a storage medium, wherein the circulating control method of the gas water heater comprises the following steps: determining a heat preservation parameter of a backwater branch; wherein the heat preservation parameter represents the heat preservation performance of a zero-cold-water circulation branch of the gas water heater; and according to a water outlet temperature, the heat preservation parameter and a set temperature, the opening condition of the zero-cold-water circulation of the gas water heater is determined again; wherein the water outlet temperature is the water temperature at the water outlet of the gas water heater, and the set temperature is the ideal water outlet temperature. According to the water outlet temperature, the heat preservation parameter and the set temperature, the opening condition of the zero-cold-water circulation of the gas water heater is determined, so that the influence of the heat preservation performance of the zero-cold-water circulation branch on the water temperature is reduced, more suitable water temperature is provided for users, and the experience of using the gas water heater of the users is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water circulation, and in particular to a circulation control method and system for a gas water heater, an electronic device and a storage medium. BACKGROUND

[0002] A gas water heater with a cold water function on the market generally detects the water temperature at the inlet and outlet of the water heater through the water inlet temperature sensor and the water outlet temperature sensor built-in the water heater, and then determines whether to start or stop the cold water circulation function. However, due to inconsistent heat preservation effects of the circulation pipeline in the user's home, there are two states of good heat preservation effect and poor heat preservation effect. When the heat preservation effect is good, the water temperature in the circulation pipeline of the water heater decreases slowly, and the temperature sensor inside the water heater detects low water temperature, and the cold water circulation function is started, but the actual water temperature in the circulation pipeline is high, which causes waste of heat energy and makes the water flow in the circulation pipeline circulate, accelerating heat dissipation; when the heat preservation effect is poor, the water temperature in the circulation pipeline decreases quickly, and the temperature sensor inside the water heater detects high water temperature, which does not meet the starting condition of the cold water circulation function, but at this time the user feels that the water temperature is not enough when using hot water. Therefore, the existing control method of starting or stopping the cold water circulation function is not flexible enough to adjust according to the heat preservation effect of the circulation pipeline, thereby reducing the comfort of the user using the cold water circulation function and the "zero cold water" experience. SUMMARY

[0003] The present application aims to solve the technical problem of the prior art that the control method of the cold water circulation function cannot adjust according to the heat preservation effect of the circulation pipeline, and provides a circulation control method and system for a gas water heater, an electronic device and a storage medium.

[0004] The present application solves the above technical problems by the following technical solutions:

[0005] The present application provides a circulation control method for a gas water heater, which comprises:

[0006] determining a heat preservation parameter of a backwater branch;

[0007] wherein the heat preservation parameter represents the heat preservation performance of the cold water circulation branch of the gas water heater;

[0008] re-determining the starting condition of the cold water circulation of the gas water heater according to the outlet water temperature, the heat preservation parameter and a set temperature;

[0009] wherein the outlet water temperature is the water temperature at the outlet of the gas water heater, and the set temperature is the ideal outlet water temperature.

[0010] Preferably, the step of determining the heat preservation parameter of the backwater branch comprises:

[0011] determining the heat preservation parameter of the return water branch according to at least one of the return water temperature, the set temperature and the return water flow rate;

[0012] The return water temperature is the temperature of the outlet of the zero-cold-water circulation branch of the gas water heater, and the return water flow rate is the water flow rate in the zero-cold-water circulation branch of the gas water heater.

[0013] Preferably, the step of determining the heat preservation parameter of the return water branch according to at least one of the return water temperature, the set temperature and the return water flow rate comprises:

[0014] When the return water temperature does not fall within the preset temperature range, if the return water temperature is less than the minimum end value of the preset temperature range, the first threshold value is determined as the heat preservation parameter; if the return water temperature is greater than the maximum end value of the preset temperature range, the second threshold value is determined as the heat preservation parameter.

[0015] The first threshold value is less than the second threshold value.

[0016] Preferably, the step of determining the heat preservation parameter of the return water branch according to at least one of the return water temperature, the set temperature and the return water flow rate comprises: collecting the return water temperature for a preset number of times within a preset time interval; and determining the return water average temperature according to the ratio of the return water temperature to the preset number of times.

[0017] When the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the return water average temperature is greater than or equal to a first preset temperature difference, the third threshold value is determined as the heat preservation parameter; if the temperature difference between the set temperature and the return water average temperature is less than the first preset temperature difference, the fourth threshold value is determined as the heat preservation parameter.

[0018] The third threshold value is greater than the first threshold value and less than the fourth threshold value; and the fourth threshold value is less than the second threshold value.

[0019] Preferably, the step of determining the heat preservation parameter of the return water branch according to at least one of the return water temperature, the set temperature and the return water flow rate comprises:

[0020] When the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the return water average temperature is greater than or equal to a second preset temperature difference, and the return water flow rate is greater than or equal to a preset flow rate, the fifth threshold value is determined as the heat preservation parameter.

[0021] When the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the return water average temperature is greater than or equal to a second preset temperature difference, and the return water flow rate is less than a preset flow rate, the sixth threshold value is determined as the heat preservation parameter.

[0022] Wherein, the fifth threshold is less than the sixth threshold but greater than the first threshold; the sixth threshold is less than the second threshold.

[0023] Preferably, the step of determining the insulation parameters of the return water branch based on at least one of the return water temperature, set temperature, and return water flow rate includes:

[0024] When the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the average return water temperature is less than the second preset temperature difference, and the return water flow rate is greater than or equal to the preset flow rate, then the sixth threshold is determined as the heat preservation parameter.

[0025] When the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the average return water temperature is less than the second preset temperature difference, and the return water flow rate is less than the preset flow rate, then the seventh threshold is determined as the heat preservation parameter.

[0026] The seventh threshold is greater than the sixth threshold and less than the second threshold.

[0027] Preferably, the circulation control method for the gas water heater further includes:

[0028] When the return water temperature is greater than or equal to the first preset temperature, the zero-cold water circulation stops.

[0029] The present invention also provides a circulation control system for a gas water heater, the circulation control system comprising:

[0030] The determination module is used to determine the insulation parameters of the return water branch; it is also used to redetermine the start-up conditions of the zero cold water circulation of the gas water heater based on the outlet water temperature, the insulation parameters and the set temperature.

[0031] The insulation parameter characterizes the insulation performance of the zero cold water circulation branch of the gas water heater, the outlet water temperature is the water temperature at the outlet of the gas water heater, and the set temperature is the ideal outlet water temperature.

[0032] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the aforementioned circulating control method for a gas water heater.

[0033] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the aforementioned circulating control method for a gas water heater.

[0034] The positive and progressive effects of this invention are as follows:

[0035] The application determines the opening condition of the zero-cold-water circulation of the gas water heater according to the outlet water temperature, the heat preservation parameter and the set temperature, thereby reducing the influence of the heat preservation performance of the zero-cold-water circulation branch on the water temperature, providing more suitable water temperature for the user and improving the user's experience of using the gas water heater. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 The first flowchart of the circulation control method of the gas water heater of embodiment 1 of the application;

[0037] Figure 2 The second flowchart of the circulation control method of the gas water heater of embodiment 1 of the application;

[0038] Figure 3 The third flowchart of the circulation control method of the gas water heater of embodiment 1 of the application;

[0039] Figure 4 The first example scheme flowchart of the circulation control method of the gas water heater of embodiment 1 of the application;

[0040] Figure 5 The second example scheme flowchart of the circulation control method of the gas water heater of embodiment 1 of the application;

[0041] Figure 6 The structure diagram of the circulation control method of the gas water heater of embodiment 1 of the application;

[0042] Figure 7 The structure diagram of the circulation control system of the gas water heater of embodiment 2 of the application;

[0043] Figure 8 The structure diagram of the electronic equipment of embodiment 3 of the application. DETAILED DESCRIPTION

[0044] The application will be further described below by way of examples, but the application is not limited in the scope of the examples.

[0045] Embodiment 1

[0046] The embodiment provides a circulation control method of a gas water heater, which is applied to a gas water heater with a zero-cold-water circulation function, mainly for identifying the heat preservation performance of the zero-cold-water circulation branch in advance, then intelligently adjusting the opening and closing conditions of the zero-cold-water circulation, realizing the target of providing comfortable water temperature for the user and saving energy and reducing consumption.

[0047] Referring to Figure 1 , the circulation control method of the gas water heater comprises:

[0048] S1, determining the heat preservation parameter of the backwater branch.

[0049] The heat preservation parameter represents a heat preservation performance of the zero-cold-water circulation branch of the gas water heater.

[0050] In an optional embodiment, referring to Figure 2 , the step S1 comprises:

[0051] S11, determining the heat preservation parameter of the backwater branch according to at least one of the backwater temperature, the set temperature and the backwater flow.

[0052] The set temperature is an ideal outlet water temperature set according to user demand.

[0053] The backwater temperature is the temperature at the outlet of the zero-cold-water circulation branch of the gas water heater, and the backwater flow is the water flow in the zero-cold-water circulation branch of the gas water heater.

[0054] In an optional embodiment, the step S11 comprises:

[0055] S111, when the backwater temperature does not fall within the preset temperature range, if the backwater temperature is less than the minimum end value of the preset temperature range, determining the first threshold value as the heat preservation parameter; if the backwater temperature is greater than the maximum end value of the preset temperature range, determining the second threshold value as the heat preservation parameter.

[0056] The first threshold value is less than the second threshold value.

[0057] In an optional embodiment, the step S11 further comprises:

[0058] S112, collecting the backwater temperature for a preset number of times within a preset time interval; determining the backwater average temperature according to the ratio of the backwater temperature to the preset number of times.

[0059] S113, when the backwater temperature falls within the preset temperature range, if the temperature difference between the set temperature and the backwater average temperature is greater than or equal to a first preset temperature difference, determining the third threshold value as the heat preservation parameter; if the temperature difference between the set temperature and the backwater average temperature is less than the first preset temperature difference, determining the fourth threshold value as the heat preservation parameter.

[0060] The third threshold value is greater than the first threshold value and less than the fourth threshold value; the fourth threshold value is less than the second threshold value.

[0061] In an optional embodiment, the step S11 further comprises:

[0062] S114, when the backwater temperature falls within the preset temperature range, if the temperature difference between the set temperature and the backwater average temperature is greater than or equal to a second preset temperature difference, and the backwater flow is greater than or equal to a preset flow, determining the fifth threshold value as the heat preservation parameter.

[0063] S115, when the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the average return water temperature is greater than or equal to the second preset temperature difference, and the return water flow is less than the preset flow, the sixth threshold value is determined as the heat preservation parameter.

[0064] The fifth threshold value is less than the sixth threshold value and greater than the first threshold value, and the sixth threshold value is less than the second threshold value.

[0065] In an optional embodiment, step S11 further includes:

[0066] S116, when the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the average return water temperature is less than the second preset temperature difference, and the return water flow is greater than or equal to the preset flow, the sixth threshold value is determined as the heat preservation parameter.

[0067] S117, when the return water temperature falls within the preset temperature range, if the temperature difference between the set temperature and the average return water temperature is less than the second preset temperature difference, and the return water flow is less than the preset flow, the seventh threshold value is determined as the heat preservation parameter.

[0068] The seventh threshold value is greater than the sixth threshold value and less than the second threshold value.

[0069] It should be noted that the values of the first threshold value, the second threshold value, the third threshold value, the fourth threshold value, the fifth threshold value, the sixth threshold value, and the seventh threshold value are set according to actual conditions.

[0070] S2, according to the outlet water temperature, the heat preservation parameter, and the set temperature, the start condition of the gas water heater zero-cold-water circulation is determined again.

[0071] The outlet water temperature is the water temperature at the outlet of the gas water heater, and the set temperature is the ideal outlet water temperature.

[0072] The embodiment determines the start condition of the gas water heater zero-cold-water circulation according to the outlet water temperature, the heat preservation parameter, and the set temperature, thereby reducing the influence of the heat preservation performance of the zero-cold-water circulation branch on the water temperature, providing more suitable water temperature for the user, and improving the user's experience of using the gas water heater.

[0073] In an optional embodiment, referring to Figure 3 , the circulation control method of the gas water heater further includes:

[0074] S3, when the return water temperature is greater than or equal to the first preset temperature, the zero-cold-water circulation is stopped.

[0075] The first preset temperature is set according to actual conditions.

[0076] The embodiment determines the stop condition of the zero-cold-water circulation of the gas water heater according to the backwater temperature and the first preset temperature, so that the zero-cold-water circulation is more suitable for actual life, and the energy consumption is effectively reduced.

[0077] Two examples of the circulation control scheme of the gas water heater are introduced below to further illustrate the content of embodiment 1.

[0078] Figure 4 The flowchart of the first scheme is shown in the following table, and the specific steps are as follows:

[0079] First, if the outlet water temperature t' is less than or equal to the difference between the set temperature ts and the heat preservation parameter (i.e., a), the zero-cold-water circulation heating is started.

[0080] Secondly, the backwater temperature t is collected every 1 second (i.e., the preset time interval), and the average backwater temperature is calculated every 10 times (i.e., the preset number of times).

[0081] Then, according to the average backwater temperature and the temperature difference between the average backwater temperature and the set temperature, a new heat preservation parameter (i.e., b) is generated, and the heat preservation parameter is stored in the main control board of the gas water heater.

[0082] The preset temperature range is set to [18 degrees Celsius-28 degrees Celsius].

[0083] If b=a-2 is generated, it is because the average backwater temperature is less than 18 degrees Celsius (i.e., the minimum end value of the preset temperature range); a-2 is the first threshold value.

[0084] If b=a+2 is generated, it is because the average backwater temperature is greater than 28 degrees Celsius (i.e., the maximum end value of the preset temperature range); a+2 is the second threshold value.

[0085] If b=a-1 is generated, it is because the backwater temperature is within the preset temperature range, and the temperature difference is greater than or equal to 12 degrees Celsius (i.e., the first preset temperature difference); a-1 is the third threshold value.

[0086] If b=a+1 is generated, it is because the backwater temperature is within the preset temperature range, and the temperature difference is less than 12 degrees Celsius (i.e., the first preset temperature difference); a+1 is the fourth threshold value.

[0087] Finally, if the backwater temperature is greater than or equal to the difference between the set temperature and the first preset temperature, the zero-cold-water circulation is ended, and the gas water heater enters the heat preservation state; if the outlet water temperature is less than or equal to the difference between the set temperature and the heat preservation parameter, the zero-cold-water circulation function is restarted.

[0088] Figure 5 The flowchart of the second scheme is shown in the following table, and the specific steps are as follows:

[0089] Firstly, if the outlet water temperature t' is less than or equal to the difference between the set temperature ts and the insulation parameter (i.e. a), the zero-cold-water circulation heating is started.

[0090] Secondly, the return water temperature t is collected every 1 second (i.e. preset time interval), and the average return water temperature is calculated every 10 times (i.e. preset number of times).

[0091] Then, according to the average return water temperature and the temperature difference between the average return water temperature and the set temperature, a new insulation parameter (i.e. b) is generated, and the insulation parameter is stored in the main control board of the gas water heater.

[0092] The preset temperature range is set to [18 degrees Celsius-28 degrees Celsius].

[0093] If b=a-2 is generated, it is because the average return water temperature is less than 18 degrees Celsius (i.e. the minimum end value of the preset temperature range); a-2 is the first threshold value.

[0094] If b=a+2 is generated, it is because the average return water temperature is greater than 28 degrees Celsius (i.e. the maximum end value of the preset temperature range); a+2 is the second threshold value.

[0095] If b=a-1 is generated, it is because the return water temperature is within the preset temperature range, and the temperature difference is greater than or equal to 12 degrees Celsius (i.e. the first preset temperature difference); in addition, the return water flow is greater than or equal to 4 liters / minute (i.e. the preset flow); a-1 is also the fifth threshold value.

[0096] If b=a is generated, it may be because the return water temperature is within the preset temperature range, and the temperature difference is greater than or equal to 12 degrees Celsius (i.e. the first preset temperature difference); in addition, the return water flow is less than 4 liters / minute (i.e. the preset flow); or it may be because the return water temperature is within the preset temperature range, and the temperature difference is less than 12 degrees Celsius (i.e. the first preset temperature difference); in addition, the return water flow is greater than or equal to 4 liters / minute (i.e. the preset flow); a is the sixth threshold value.

[0097] If b=a+1 is generated, it is because the return water temperature is within the preset temperature range, and the temperature difference is less than 12 degrees Celsius (i.e. the first preset temperature difference); in addition, the return water flow is less than 4 liters / minute (i.e. the preset flow); a+1 is the seventh threshold value.

[0098] Finally, if the return water temperature is greater than or equal to the difference between the set temperature and the first preset temperature, the zero-cold-water circulation is ended, and the gas water heater enters the insulation state; if the outlet water temperature is less than or equal to the difference between the set temperature and the insulation parameter, the zero-cold-water circulation function is restarted.

[0099] Figure 6The structure schematic diagram of the gas water heater applying the circulation control of the embodiment, wherein the outlet water temperature sensor 61 can detect the water temperature at the outlet 66 of the gas water heater, the outlet faucet 62 is arranged on the cold water circulation branch 63, and the user can receive the outlet water by opening the outlet faucet 62, the inlet water temperature sensor 64 is arranged at the interface between the inlet 67 of the gas water heater and the outlet of the cold water circulation branch 63, so as to collect the water temperature at the inlet 67 of the gas water heater and the temperature (i.e. the backwater temperature) at the outlet of the cold water circulation branch 63. The water amount valve assembly 65 is also arranged at the interface between the inlet 67 of the gas water heater and the outlet of the cold water circulation branch 63, for collecting the backwater flow of the cold water circulation branch 63, so as to further accurately determine the heat preservation performance of the cold water circulation branch 63 by the backwater flow.

[0100] In addition, Figure 6 The inlet 68, the proportional valve 69, the fan 610, the gas distribution system 611, the combustion chamber 612, the heat exchanger 613, the fume hood 614, the electric controller 615 and the circulation pump 616 in the gas water heater are conventional devices, which will not be described here.

[0101] Embodiment 2

[0102] The embodiment provides a circulation control system of a gas water heater, referring to Figure 7 The circulation control system of the gas water heater comprises:

[0103] A determination module 1 is configured to determine a heat preservation parameter of a backwater branch, and to determine an opening condition of a cold water circulation of the gas water heater again according to an outlet water temperature, the heat preservation parameter and a set temperature.

[0104] The heat preservation parameter represents the heat preservation performance of the cold water circulation branch of the gas water heater, the outlet water temperature is the water temperature at the outlet of the gas water heater, and the set temperature is an ideal outlet water temperature.

[0105] In an optional implementation, the determination module 1 is further configured to determine the heat preservation parameter of the backwater branch according to at least one of a backwater temperature, the set temperature and a backwater flow.

[0106] The backwater temperature is the temperature at the outlet of the cold water circulation branch of the gas water heater, and the backwater flow is the water flow in the cold water circulation branch of the gas water heater.

[0107] In an optional implementation, the determination module 1 is further configured to, when the backwater temperature does not fall within a preset temperature range, determine a first threshold value as the heat preservation parameter if the backwater temperature is less than the minimum end value of the preset temperature range, and determine a second threshold value as the heat preservation parameter if the backwater temperature is greater than the maximum end value of the preset temperature range.

[0108] The first threshold value is less than the second threshold value.

[0109] In an optional implementation, referring to Figure 7 , the circulation control system of the gas water heater further comprises:

[0110] The collection module 2 is configured to collect a preset number of return water temperatures at a preset time interval, and determine a return water mean temperature according to a ratio of the return water temperature to the preset number.

[0111] The determination module 1 is further configured to, when the return water temperature falls within the preset temperature range, determine a third threshold value as the heat preservation parameter if a temperature difference between the set temperature and the return water mean temperature is greater than or equal to a first preset temperature difference, or determine a fourth threshold value as the heat preservation parameter if the temperature difference between the set temperature and the return water mean temperature is less than the first preset temperature difference.

[0112] The third threshold value is greater than the first threshold value and less than the fourth threshold value, and the fourth threshold value is less than the second threshold value.

[0113] In an optional implementation, the determination module 1 is further configured to, when the return water temperature falls within the preset temperature range, determine a fifth threshold value as the heat preservation parameter if the temperature difference between the set temperature and the return water mean temperature is greater than or equal to a second preset temperature difference and the return water flow is greater than or equal to a preset flow.

[0114] The determination module 1 is further configured to, when the return water temperature falls within the preset temperature range, determine a sixth threshold value as the heat preservation parameter if the temperature difference between the set temperature and the return water mean temperature is greater than or equal to the second preset temperature difference and the return water flow is less than the preset flow.

[0115] The fifth threshold value is less than the sixth threshold value and greater than the first threshold value, and the sixth threshold value is less than the second threshold value.

[0116] In an optional implementation, the determination module 1 is further configured to, when the return water temperature falls within the preset temperature range, determine the sixth threshold value as the heat preservation parameter if the temperature difference between the set temperature and the return water mean temperature is less than the second preset temperature difference and the return water flow is greater than or equal to the preset flow.

[0117] The determination module 1 is further configured to, when the return water temperature falls within the preset temperature range, determine a seventh threshold value as the heat preservation parameter if the temperature difference between the set temperature and the return water mean temperature is less than the second preset temperature difference and the return water flow is less than the preset flow.

[0118] The seventh threshold value is greater than the sixth threshold value and less than the second threshold value.

[0119] In an optional implementation, referring to Figure 7 , the circulation control system of the gas water heater further comprises:

[0120] The stop module 3 is configured to stop the zero-cold-water circulation when the return water temperature is greater than or equal to a first preset temperature.

[0121] It should be noted that the implementation principles and technical effects of each module of the embodiment can refer to the corresponding part of embodiment 1, which will not be described here.

[0122] Embodiment 3

[0123] The embodiment provides an electronic device, Figure 8 The schematic diagram of the modules of the electronic device. The electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor implements the cycle control method of the gas water heater of embodiment 1 when executing the program. Figure 8 The electronic device 30 shown is merely an example and should not limit the functions and use range of the embodiment of the application.

[0124] As Figure 8 The electronic device 30 can be in the form of a general computing device, for example, it can be a server device. The components of the electronic device 30 can include but are not limited to: the above-mentioned at least one processor 31, the above-mentioned at least one memory 32, the bus 33 connecting different system components including the memory 32 and the processor 31.

[0125] The bus 33 includes a data bus, an address bus and a control bus.

[0126] The memory 32 can include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and can further include read-only memory (ROM) 323.

[0127] The memory 32 can also include programs / utilities 325 with a set of (at least one) program modules 324, such as operating systems, one or more application programs, other program modules, and program data, each of which or some combination of which can include the implementation of a network environment.

[0128] The processor 31 performs various function applications and data processing by running the computer program stored in the memory 32, such as the cycle control method of the gas water heater of embodiment 1 of the application.

[0129] The electronic device 30 can also communicate with one or more external devices 34 (such as a keyboard, a pointing device, etc.). Such communication can be through an input / output (I / O) interface 35. Furthermore, the model generated device 30 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) through a network adapter 36. As Figure 8As shown, network adapter 36 communicates with other modules of model-generated device 30 over bus 33. It should be appreciated that other hardware and / or software modules can be used in conjunction with model-generated device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (redundant array of independent disks) systems, tape drives, and data backup storage systems, etc.

[0130] It should be noted that, although in the above detailed description reference is made to several units / modules or sub-units / modules of the electronic device, such division is merely exemplary and not mandatory. Indeed, according to embodiments of the present application, features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, features and functions of one unit / module described above can be further divided into embodied by a plurality of units / modules.

[0131] Embodiment 4

[0132] The embodiment provides a computer readable storage medium, and a computer program is stored on the computer readable storage medium. The program is executed by a processor to implement the cycle control method of the gas water heater in embodiment 1.

[0133] More specifically, the readable storage medium can include, but is not limited to: a portable disc, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0134] In a possible implementation, the present application can also be implemented in the form of a program product, which includes program codes for causing a terminal device to execute the cycle control method of the gas water heater in embodiment 1 when the program product is run on the terminal device.

[0135] The program codes for executing the present application can be written in any combination of one or more programming languages, and can be executed completely on a user device, partially on a user device, as a separate software package, partially on a user device and partially on a remote device, or completely on a remote device.

[0136] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A circulation control method of a gas water heater, characterized by, The circulating control method of the gas water heater comprises: determining a heat preservation parameter of the backwater branch; wherein the heat preservation parameter represents the heat preservation performance of the zero-cold-water circulation branch of the gas water heater; re-determining the opening condition of the zero-cold-water circulation of the gas water heater according to the outlet water temperature, the heat preservation parameter and a set temperature; wherein the outlet water temperature is the water temperature at the outlet of the gas water heater, and the set temperature is the ideal outlet water temperature; the step of determining the heat preservation parameter of the backwater branch comprises: determining the heat preservation parameter of the backwater branch according to at least one of the backwater temperature, the set temperature and the backwater flow; wherein the backwater temperature is the temperature at the outlet of the zero-cold-water circulation branch of the gas water heater, and the backwater flow is the water flow in the zero-cold-water circulation branch of the gas water heater; the step of determining the heat preservation parameter of the backwater branch according to at least one of the backwater temperature, the set temperature and the backwater flow comprises: when the backwater temperature does not fall within a preset temperature range, if the backwater temperature is less than the minimum end value of the preset temperature range, determining a first threshold value as the heat preservation parameter; if the backwater temperature is greater than the maximum end value of the preset temperature range, determining a second threshold value as the heat preservation parameter; the first threshold value is less than the second threshold value; the step of determining the heat preservation parameter of the backwater branch according to at least one of the backwater temperature, the set temperature and the backwater flow comprises: collecting backwater temperatures for a preset number of times within a preset time interval, and determining a backwater average temperature according to the ratio of the backwater temperatures to the preset number of times; when the backwater temperature falls within the preset temperature range, if the temperature difference between the set temperature and the backwater average temperature is greater than or equal to a first preset temperature difference, determining a third threshold value as the heat preservation parameter; if the temperature difference between the set temperature and the backwater average temperature is less than the first preset temperature difference, determining a fourth threshold value as the heat preservation parameter; wherein the third threshold value is greater than the first threshold value and less than the fourth threshold value, and the fourth threshold value is less than the second threshold value; the step of determining the heat preservation parameter of the backwater branch according to at least one of the backwater temperature, the set temperature and the backwater flow comprises: when the backwater temperature falls within the preset temperature range, if the temperature difference between the set temperature and the backwater average temperature is greater than or equal to a second preset temperature difference, and the backwater flow is greater than or equal to a preset flow, determining a fifth threshold value as the heat preservation parameter; when the backwater temperature falls within the preset temperature range, if the temperature difference between the set temperature and the backwater average temperature is greater than or equal to the second preset temperature difference, and the backwater flow is less than the preset flow, determining a sixth threshold value as the heat preservation parameter; wherein the fifth threshold value is less than the sixth threshold value and greater than the first threshold value, and the sixth threshold value is less than the second threshold value.

2. The circulation control method of a gas water heater according to claim 1, wherein the step of determining the heat preservation parameter of the backwater branch according to at least one of the backwater temperature, the set temperature and the backwater flow comprises: when the backwater temperature falls within the preset temperature range, if the temperature difference between the set temperature and the backwater average temperature is less than the second preset temperature difference, and the backwater flow is greater than or equal to the preset flow, determining the sixth threshold value as the heat preservation parameter; When the return water temperature falls within the preset temperature range, if a temperature difference between the set temperature and the return water average temperature is less than the second preset temperature difference, and the return water flow is less than the preset flow, the seventh threshold is determined as the heat preservation parameter. The seventh threshold is greater than the sixth threshold and less than the second threshold.

3. The circulation control method of a gas water heater according to claim 1, wherein The circulation control method of the gas water heater further comprises: When the return water temperature is greater than or equal to the first preset temperature, the zero cold water circulation is stopped.

4. A circulation control system for a gas water heater, the system comprising: The circulation control system of the gas water heater comprises: The determining module is configured to determine a heat preservation parameter of the return water branch, and to re-determine an opening condition of the zero cold water circulation of the gas water heater according to an outlet water temperature, the heat preservation parameter and a set temperature. The heat preservation parameter represents a heat preservation performance of the zero cold water circulation branch of the gas water heater, the outlet water temperature is a water temperature at an outlet of the gas water heater, and the set temperature is an ideal outlet water temperature. The determining module is further configured to determine the heat preservation parameter of the return water branch according to at least one of a return water temperature, a set temperature and a return water flow. The return water temperature is a temperature at an outlet of the zero cold water circulation branch of the gas water heater, and the return water flow is a water flow in the zero cold water circulation branch of the gas water heater. The determining module is further configured to, when the return water temperature does not fall within the preset temperature range, if the return water temperature is less than a minimum end value of the preset temperature range, determine the first threshold as the heat preservation parameter, and if the return water temperature is greater than a maximum end value of the preset temperature range, determine the second threshold as the heat preservation parameter. The first threshold is less than the second threshold. The collecting module is configured to collect a preset number of return water temperatures in a preset time interval, and to determine a return water average temperature according to a ratio of the return water temperatures to the preset number. The determining module is further configured to, when the return water temperature falls within the preset temperature range, if a temperature difference between the set temperature and the return water average temperature is greater than or equal to a first preset temperature difference, determine the third threshold as the heat preservation parameter, and if the temperature difference between the set temperature and the return water average temperature is less than the first preset temperature difference, determine the fourth threshold as the heat preservation parameter. The third threshold is greater than the first threshold and less than the fourth threshold, and the fourth threshold is less than the second threshold. The determining module is further configured to, when the return water temperature falls within the preset temperature range, if a temperature difference between the set temperature and the return water average temperature is greater than or equal to a second preset temperature difference, and the return water flow is greater than or equal to a preset flow, determine the fifth threshold as the heat preservation parameter. The determining module is further configured to, when the return water temperature falls within the preset temperature range, if a temperature difference between the set temperature and the return water average temperature is greater than or equal to the second preset temperature difference, and the return water flow is less than the preset flow, determine the sixth threshold as the heat preservation parameter. The fifth threshold is less than the sixth threshold and greater than the first threshold, and the sixth threshold is less than the second threshold.

5. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor implements the circulation control method of the gas water heater according to any one of claims 1-3 when executing the computer program.

6. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the circulation control method of the gas water heater according to any one of claims 1-3.

Images