Gas water heater gas consumption determination method and device, gas water heater and storage medium

Abstract

The invention discloses a gas water heater gas consumption determination method and device, a gas water heater and a storage medium. The method for determining the gas consumption of the gas water heater comprises the steps that the incrustation generation amount of the gas water heater within the set detection time duration is obtained, and the corresponding incrustation thickness and the current gas heat efficiency are determined according to the incrustation generation amount; the heat efficiency decline rate of the gas water heater is determined according to the scale thickness, and the gas consumption increment of the gas water heater is determined according to the heat efficiency decline rate; the first gas consumption of the gas water heater is determined according to the current gas heat efficiency, and the second gas consumption of the gas water heater is determined according to the first gas consumption and the gas consumption increment. According to the method, the more accurate heat efficiency value is matched through the scale degree of the gas water heater, the calculated consumed gas heat is closer to the reality, and then the accurate gas consumption is obtained.

Description

Technical Field

[0001] This invention relates to the field of gas water heater technology, and in particular to a method, apparatus, gas water heater and storage medium for determining the gas consumption of a gas water heater. Background Technology

[0002] Gas water heaters heat domestic water by burning gas, offering advantages such as instant hot water and high flow rate. Gas consumption is a key concern for users. In addition to a gas water heater, most households also have a gas stove, making it difficult for users to know the exact gas consumption of each appliance.

[0003] Currently, gas consumption is estimated by calculating the energy consumed by a water heater to heat a certain amount of water and then dividing that energy by the calorific value of the gas. However, as usage time increases, scale accumulates on the inner walls of the heat exchanger pipes inside the water heater, reducing heat exchange efficiency. This means that heating the same amount of water actually consumes more gas than theoretically estimated. Furthermore, besides heat exchange efficiency, factors such as the calorific value of the gas itself, the energy efficiency rating of the water heater, and the accuracy of the accumulated water volume statistics can all deviate from theoretical assumptions. These accumulated deviations can lead to a significant discrepancy between the final calculated result and the actual gas consumption. Summary of the Invention

[0004] This invention provides a method, apparatus, gas water heater, and storage medium for determining the gas consumption of a gas water heater, in order to solve the problem that the thermal efficiency varies due to different levels of scale on the inner wall of the heat exchanger under different water qualities during long-term use, which in turn leads to inaccurate calculations of the gas consumption of the gas water heater.

[0005] According to one aspect of the present invention, a method for determining the gas consumption of a gas water heater is provided, the method comprising:

[0006] The amount of scale generated in the gas water heater within a set detection time period is obtained, and the corresponding scale thickness and current gas thermal efficiency are determined based on the amount of scale generated.

[0007] The rate of decrease in thermal efficiency of the gas water heater is determined based on the thickness of the scale, and the increase in gas consumption of the gas water heater is determined based on the rate of decrease in thermal efficiency.

[0008] The first gas consumption of the gas water heater is determined based on the current gas thermal efficiency, and the second gas consumption of the gas water heater is determined based on the first gas consumption and the increase in gas consumption.

[0009] Optionally, the amount of scale generated by the gas water heater within a set detection time period can be obtained, including:

[0010] The amount of scale buildup in a gas water heater within a set detection time period is determined using the following formula:

[0011]

[0012] Where W is the amount of scale formed; t is the set detection time length; The total hardness of the raw water; denoted as residual hardness after heating; V represents the daily water consumption of the gas water heater; and f is the scaling efficiency factor.

[0013] Optionally, before determining the corresponding scale thickness based on the amount of scale formation, the method further includes:

[0014] Obtain the surface area of ​​the heat exchanger and the density of scale in the gas water heater;

[0015] The corresponding scale thickness is determined based on the amount of scale formed, including:

[0016] The corresponding scale thickness is determined based on the amount of scale formation, the surface area of ​​the heat exchanger, and the scale density.

[0017] Optionally, the rate of decrease in thermal efficiency of the gas water heater can be determined based on the thickness of the scale, including:

[0018] The rate of decrease in thermal efficiency of a gas water heater is determined using the following formula:

[0019]

[0020] in, The rate of decrease in thermal efficiency; The thickness of the scale; ρ is the thermal conductivity of scale; A is the surface area of ​​the heat exchanger; k0 is the heat transfer coefficient.

[0021] Optionally, the heat transfer coefficient is determined according to the following formula:

[0022]

[0023] in, The convective heat transfer coefficient of the hot fluid; The convective heat transfer coefficient of the cold fluid; For dirt resistance.

[0024] Optionally, before determining the increase in gas consumption of the gas water heater based on the rate of decrease in thermal efficiency, the method may also include:

[0025] Obtain the baseline gas consumption of the gas water heater;

[0026] The increase in gas consumption for a gas water heater is determined using the following formula:

[0027]

[0028] in, This represents an increase in gas consumption. This is the baseline gas consumption. This represents the rate of decrease in thermal efficiency.

[0029] Optionally, the initial gas consumption of the gas water heater is determined based on the current gas thermal efficiency, including:

[0030] The gas water heater obtains the gas heat and gas source calorific value within a set detection time period, and determines the first gas consumption of the gas water heater based on the current gas thermal efficiency, gas heat, and gas source calorific value.

[0031] According to another aspect of the present invention, a gas consumption determination device for a gas water heater is provided, the gas consumption determination device for a gas water heater comprising:

[0032] The parameter acquisition module is used to acquire the amount of scale generated by the gas water heater within a set detection time period, and determine the corresponding scale thickness and the current gas thermal efficiency based on the amount of scale generated.

[0033] The consumption increase determination module is used to determine the rate of decrease in thermal efficiency of the gas water heater based on the scale thickness, and to determine the increase in gas consumption of the gas water heater based on the rate of decrease in thermal efficiency.

[0034] The gas consumption determination module is used to determine the first gas consumption of the gas water heater based on the current gas thermal efficiency, and to determine the second gas consumption of the gas water heater based on the first gas consumption and the increase in gas consumption.

[0035] According to another aspect of the present invention, a gas water heater is provided, the gas water heater comprising:

[0036] At least one processor; and,

[0037] A memory that is communicatively connected to at least one processor; wherein,

[0038] The memory stores a computer program that can be executed by at least one processor, such that the at least one processor is able to perform the gas consumption determination method for a gas water heater according to any embodiment of the present invention.

[0039] According to another aspect of the present invention, a computer-readable storage medium is provided, which stores computer instructions for causing a processor to execute the gas consumption determination method for a gas water heater according to any embodiment of the present invention.

[0040] The technical solution of this invention involves obtaining the amount of scale generated in a gas water heater within a set detection time period, determining the corresponding scale thickness and current gas thermal efficiency based on the scale generation amount, and considering the different degrees of scale buildup on the inner wall of the heat exchanger when the gas water heater is used for a long time under different water qualities. Further, the thermal efficiency reduction rate of the gas water heater is determined based on the scale thickness, and the increase in gas consumption is determined based on the thermal efficiency reduction rate. That is, the corresponding thermal efficiency is matched according to the degree of scale buildup, thereby calculating the accurate increase in gas consumption. Finally, the first gas consumption of the gas water heater is determined based on the current gas thermal efficiency, and the second gas consumption is determined based on the first gas consumption and the increase in gas consumption, thus obtaining the accurate gas consumption.

[0041] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a flowchart of a method for determining the gas consumption of a gas water heater according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of a gas consumption determination device for a gas water heater according to an embodiment of the present invention;

[0045] Figure 3 This is a schematic diagram of the structure of a gas water heater that implements the gas consumption determination method of the gas water heater according to an embodiment of the present invention. Detailed Implementation

[0046] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0047] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0048] Figure 1 This invention provides a flowchart of a method for determining the gas consumption of a gas water heater. This embodiment is applicable to situations where the gas consumption of a gas water heater needs to be accurately determined during long-term use under different water qualities. This method for determining the gas consumption of a gas water heater can be executed by a gas water heater consumption determining device, which can be implemented in hardware and / or software and can be configured within the gas water heater. Figure 1 As shown, the method for determining the gas consumption of this gas water heater includes:

[0049] S110. Obtain the amount of scale generated by the gas water heater within the set detection time period, and determine the corresponding scale thickness and current gas thermal efficiency based on the amount of scale generated.

[0050] The set detection time can be the length of time the gas water heater is used in the current water quality environment. That is, the gas water heater uses water with the same water quality environment within the set detection time. The statistical unit of the set detection time can be a day or other time units. This embodiment does not impose any special restrictions on it.

[0051] The total amount of scale buildup in the heat exchanger of the gas water heater is calculated within a set testing time period. Specifically, the amount of scale buildup within the set testing time period is determined using the following formula:

[0052]

[0053] Where W represents the amount of scale formed, in kg; and t represents the set detection time, in days. The total hardness of the raw water is expressed in mg / L. The value represents the residual hardness after heating, expressed in mg / L; V represents the daily water consumption of the gas water heater, expressed in m³ / day; and f represents the scaling efficiency factor.

[0054] Understandably, limescale is composed of calcium carbonate. If calcium carbonate is the primary component, then the total hardness of the raw water is mainly determined by calcium carbonate. The main focus is on statistical analysis; residual hardness after heating. It needs to be experimentally determined or estimated through solubility product; the scaling efficiency factor f usually takes a value between 0 and 1, which is related to temperature, flow rate and material. This embodiment does not impose special restrictions on its specific value. Optionally, the scaling efficiency factor f can take a value between 0.5 and 0.8.

[0055] As we know, scale adheres to the inner wall surface of the heat exchanger. Therefore, the corresponding scale thickness can be determined based on the amount of scale formed, the surface area of ​​the heat exchanger, and the scale density. That is, before determining the corresponding scale thickness based on the amount of scale formed, we need to obtain the surface area of ​​the gas water heater's heat exchanger and the scale density. The heat exchanger surface area can be obtained in advance based on the gas water heater's property information, while the scale density mainly considers the calcium carbonate and calcium sulfate components. Approximately 2710 kg / m³, calcium sulfate Approximately 2300 kg / m³.

[0056] Specifically, the corresponding scale thickness is determined according to the following formula:

[0057]

[0058] in, denoted as scale thickness; W represents scale formation amount; A represents heat exchanger surface area. This refers to the density of scale.

[0059] Gas thermal efficiency of gas water heater External factors may influence the gas water heater's performance, including but not limited to its rated heat load, water quality, and usage time. Specifically: Gas thermal efficiency of gas water heater The settings can be determined according to the actual situation of the gas water heater. This embodiment does not impose any special restrictions on the determination method or specific values.

[0060] In this embodiment, considering that the amount of scale formation varies under different water quality environments, the water quality can be divided into several grades. Different grades correspond to different amounts of scale formation after setting a detection time. A table is created showing the water quality, set detection time, and amount of scale formation. If there is a direct correspondence, then based on the set detection time, local water quality, and scale formation amount, the corresponding [function name] will be invoked. Furthermore, according to Substituting into the above formula, we obtain the current gas thermal efficiency.

[0061] It should be noted that in this embodiment, the water quality applicable to the gas water heater is preset on the control panel of the gas water heater. This can be done manually by those skilled in the art or by the user of the gas water heater, or the gas water heater can be connected to the network to provide feedback on its location and automatically determine the water quality corresponding to the location. This embodiment does not impose any special restrictions on the method of obtaining the water quality.

[0062] S120. Determine the rate of decrease in thermal efficiency of the gas water heater based on the scale thickness, and determine the increase in gas consumption of the gas water heater based on the rate of decrease in thermal efficiency.

[0063] As is known, as scale accumulates on the inner wall of the heat exchanger's water pipes, it adheres to the surface of the heat exchanger to form an insulation layer, which reduces heat transfer efficiency, severely reduces hot water production efficiency, and increases gas consumption. Different thermal efficiencies will directly affect the accuracy of gas consumption.

[0064] In this embodiment, the thermal efficiency reduction rate of the gas water heater is defined based on the scale thickness. The thermal efficiency reduction rate of the gas water heater is then determined according to the following formula:

[0065] The rate of decrease in thermal efficiency of a gas water heater is determined using the following formula:

[0066]

[0067] in, The rate of decrease in thermal efficiency; The thickness of the scale is measured in mm. ρ is the thermal conductivity of scale, in W / (m×K); A is the surface area of ​​the heat exchanger, in m²; k0 is the heat transfer coefficient, in W / (m²×K).

[0068] The heat transfer coefficient k0 represents the heat transfer rate per unit area and per unit temperature difference. It takes into account factors such as thermal conductivity, convection, and fouling resistance. The heat transfer coefficient is determined according to the following formula:

[0069]

[0070] in, The convective heat transfer coefficient of the hot fluid; The convective heat transfer coefficient of the cold fluid; For dirt resistance.

[0071] Convection heat transfer coefficient of hot fluid convective heat transfer coefficient of cold fluid and dirt resistance The selection can be made based on the actual usage of the gas water heater; this embodiment does not impose any special restrictions on its specific values.

[0072] Based on the above, after the thermal efficiency decreases, the gas consumption needs to increase to maintain the same heating power. Before determining the increase in gas consumption for the gas water heater based on the rate of thermal efficiency decrease, a baseline gas consumption for the gas water heater is obtained. The baseline gas consumption is the gas consumption under scale-free conditions. Furthermore, the increase in gas consumption for the gas water heater is determined based on the following formula:

[0073]

[0074] in, The increase in gas consumption is expressed in m³ or kg. This is the baseline gas consumption. This represents the rate of decrease in thermal efficiency.

[0075] S130. Determine the first gas consumption of the gas water heater based on the current gas thermal efficiency, and determine the second gas consumption of the gas water heater based on the first gas consumption and the increase in gas consumption.

[0076] Specifically, the gas heat value and gas source calorific value are obtained within a set detection time period. Based on the current gas thermal efficiency, gas heat value, and gas source calorific value, the initial gas consumption of the gas water heater is determined. ,in, E represents the initial gas consumption of the gas water heater; E represents the heat output of the gas. This refers to the current gas thermal efficiency of the gas water heater; This represents the calorific value of the gas source.

[0077] In one embodiment, in order to more accurately detect the gas consumption of the gas water heater, the water consumption statistics are refined as much as possible, the set detection time length is divided into the smallest possible water consumption detection time periods, the unit gas heat of each water consumption detection time period is calculated, and further, the unit gas heat of each water consumption detection time period is added together to obtain the gas heat, where the gas heat E is the total gas heat of the gas water heater during the entire set detection time length.

[0078] The calorific value of gas sources varies greatly in different regions. The calorific value of gas sources is directly related to the gas source composition and gas pressure. Different calorific values ​​of gas sources will directly affect the accuracy of gas consumption. The calorific value of gas sources can be selected and set according to the gas consumption requirements of the gas water heater. This embodiment does not impose any special restrictions on this.

[0079] Based on the above, the second gas consumption of the gas water heater is determined according to the first gas consumption and the increase in gas consumption, specifically as follows: .

[0080] The technical solution of this invention involves obtaining the amount of scale formed in a gas water heater within a set detection time period, and determining the corresponding scale thickness and current gas thermal efficiency based on the scale formation amount; determining the rate of decrease in the gas water heater's thermal efficiency based on the scale thickness, and determining the increase in gas consumption based on the rate of decrease in thermal efficiency; determining the first gas consumption of the gas water heater based on the current gas thermal efficiency, and determining the second gas consumption of the gas water heater based on the first gas consumption and the increase in gas consumption. This invention solves the problem that different degrees of scale buildup on the inner wall of the heat exchanger under different water qualities during long-term use leads to different thermal efficiencies, resulting in inaccurate calculations of gas water heater consumption. By matching the scale level of the gas water heater to a more accurate thermal efficiency value, the calculated gas heat consumption is closer to the actual value, thus obtaining an accurate gas consumption.

[0081] Based on the same inventive concept Figure 2 This is a schematic diagram of a gas consumption determination device for a gas water heater provided in an embodiment of the present invention. Figure 2 As shown, the gas consumption determination device for the gas water heater includes:

[0082] The parameter acquisition module 210 is used to acquire the amount of scale generated by the gas water heater within a set detection time period, and determine the corresponding scale thickness and the current gas thermal efficiency based on the amount of scale generated.

[0083] The consumption increase determination module 220 is used to determine the rate of decrease in thermal efficiency of the gas water heater based on the scale thickness, and to determine the increase in gas consumption of the gas water heater based on the rate of decrease in thermal efficiency.

[0084] Gas consumption determination module 230 is used to determine the first gas consumption of the gas water heater based on the current gas thermal efficiency, and to determine the second gas consumption of the gas water heater based on the first gas consumption and the increase in gas consumption.

[0085] Optionally, the amount of scale formed in the gas water heater within a set detection time period can be obtained, specifically for:

[0086] The amount of scale buildup in a gas water heater within a set detection time period is determined using the following formula:

[0087]

[0088] Where W is the amount of scale formed; t is the set detection time length; The total hardness of the raw water; denoted as residual hardness after heating; V represents the daily water consumption of the gas water heater; and f is the scaling efficiency factor.

[0089] Optionally, the gas consumption determination device for the gas water heater also includes:

[0090] The density and surface area determination module is used to obtain the surface area of ​​the heat exchanger and the density of scale in the gas water heater.

[0091] The corresponding scale thickness is determined based on the amount of scale formed, specifically for:

[0092] The corresponding scale thickness is determined based on the amount of scale formation, the surface area of ​​the heat exchanger, and the scale density.

[0093] Optionally, the rate of decrease in thermal efficiency of the gas water heater can be determined based on the thickness of the scale, specifically for:

[0094] The rate of decrease in thermal efficiency of a gas water heater is determined using the following formula:

[0095]

[0096] in, The rate of decrease in thermal efficiency; The thickness of the scale; ρ is the thermal conductivity of scale; A is the surface area of ​​the heat exchanger; k0 is the heat transfer coefficient.

[0097] Optionally, the heat transfer coefficient is determined according to the following formula:

[0098]

[0099] in, The convective heat transfer coefficient of the hot fluid; The convective heat transfer coefficient of the cold fluid; For dirt resistance.

[0100] Optionally, the gas consumption determination device for the gas water heater also includes:

[0101] The baseline gas consumption determination module is used to obtain the baseline gas consumption of the gas water heater.

[0102] The increase in gas consumption for a gas water heater is determined using the following formula:

[0103]

[0104] in, This represents an increase in gas consumption. This is the baseline gas consumption. This represents the rate of decrease in thermal efficiency.

[0105] Optionally, the initial gas consumption of the gas water heater is determined based on the current gas thermal efficiency, specifically for:

[0106] The gas water heater obtains the gas heat and gas source calorific value within a set detection time period, and determines the first gas consumption of the gas water heater based on the current gas thermal efficiency, gas heat, and gas source calorific value.

[0107] The gas consumption determination device for gas water heaters provided in this embodiment of the invention can execute the gas consumption determination method for gas water heaters provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of executing the gas consumption determination method for gas water heaters.

[0108] Based on the same inventive concept Figure 3 A schematic diagram of the structure of a gas water heater 310 that can be used to implement an embodiment of the present invention is shown. Figure 3 As shown, the gas water heater 310 includes at least one processor 311 and a memory, such as a read-only memory (ROM 312) or a random access memory (RAM 313), communicatively connected to the at least one processor 311. The memory stores computer programs executable by the at least one processor. The processor 311 can perform various appropriate actions and processes based on the computer program stored in the ROM 312 or loaded from storage unit 318 into the RAM 313. The RAM 313 can also store various programs and data required for the operation of the gas water heater 310. The processor 311, ROM 312, and RAM 313 are interconnected via a bus 314. An I / O (input / output) interface 315 is also connected to the bus 314.

[0109] Multiple components in the gas water heater 310 are connected to the I / O interface 315, including: an input unit 316, such as a keyboard, mouse, etc.; an output unit 317, such as various types of displays, speakers, etc.; a storage unit 318, such as a disk, optical disk, etc.; and a communication unit 319, such as a network card, modem, wireless transceiver, etc. The communication unit 319 allows the gas water heater 310 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0110] Processor 311 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 311 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 311 performs the various methods and processes described above, such as the gas consumption determination method for a gas water heater.

[0111] In some embodiments, the gas consumption determination method for a gas water heater may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 318. In some embodiments, part or all of the computer program may be loaded into and / or installed on the gas water heater 310 via ROM 312 and / or communication unit 319. When the computer program is loaded into RAM 313 and executed by processor 311, one or more steps of the gas consumption determination method for a gas water heater described above may be performed. Alternatively, in other embodiments, processor 311 may be configured to perform the gas consumption determination method for a gas water heater by any other suitable means (e.g., by means of firmware).

[0112] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0113] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0114] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0115] To provide interaction with the user, the systems and techniques described herein can be implemented on a gas water heater having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the gas water heater. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0116] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or middleware components (e.g., application servers), or frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0117] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0118] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0119] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for determining the gas consumption of a gas water heater, characterized in that, include: The amount of scale generated in the gas water heater within a set detection time period is obtained, and the corresponding scale thickness and current gas thermal efficiency are determined based on the amount of scale generated. The rate of decrease in thermal efficiency of the gas water heater is determined based on the scale thickness, and the increase in gas consumption of the gas water heater is determined based on the rate of decrease in thermal efficiency. The first gas consumption of the gas water heater is determined based on the current gas thermal efficiency, and the second gas consumption of the gas water heater is determined based on the first gas consumption and the increase in gas consumption.

2. The method for determining the gas consumption of a gas water heater according to claim 1, characterized in that, The amount of scale buildup in the gas water heater within a set detection time period is obtained, including: The amount of scale buildup in a gas water heater within a set detection time period is determined using the following formula: Wherein, W represents the amount of scale formed; t represents the set detection time length; The total hardness of the raw water; V represents the residual hardness after heating; V represents the daily water consumption of the gas water heater; and f represents the scaling efficiency factor.

3. The method for determining the gas consumption of a gas water heater according to claim 1, characterized in that, Before determining the corresponding scale thickness based on the scale formation amount, the process also includes: The surface area of ​​the heat exchanger and the density of scale in the gas water heater were obtained. Determining the corresponding scale thickness based on the amount of scale formation includes: The corresponding scale thickness is determined based on the scale formation amount, the heat exchanger surface area, and the scale density.

4. The method for determining the gas consumption of a gas water heater according to claim 1, characterized in that, Determining the rate of decrease in thermal efficiency of the gas water heater based on the scale thickness includes: The thermal efficiency reduction rate of the gas water heater is determined according to the following formula: in, The rate of decrease in thermal efficiency; The thickness of the scale; ρ is the thermal conductivity of scale; A is the surface area of ​​the heat exchanger; k0 is the heat transfer coefficient.

5. The method for determining the gas consumption of a gas water heater according to claim 4, characterized in that, The heat transfer coefficient is determined according to the following formula: in, The convective heat transfer coefficient of the hot fluid; The convective heat transfer coefficient of the cold fluid; For dirt resistance.

6. The method for determining the gas consumption of a gas water heater according to claim 1, characterized in that, Before determining the increase in gas consumption of the gas water heater based on the rate of decrease in thermal efficiency, the method further includes: Obtain the baseline gas consumption of the gas water heater; The increase in gas consumption of the gas water heater is determined based on the following formula: in, The increase in gas consumption; The reference gas consumption; The rate of decrease in thermal efficiency is denoted as .

7. The method for determining the gas consumption of a gas water heater according to claim 1, characterized in that, Determining the first gas consumption of the gas water heater based on the current gas thermal efficiency includes: The gas water heater obtains the gas heat and gas source calorific value within the set detection time period, and determines the first gas consumption of the gas water heater based on the current gas thermal efficiency, the gas heat, and the gas source calorific value.

8. A device for determining the gas consumption of a gas water heater, characterized in that, include: The parameter acquisition module is used to acquire the amount of scale generated by the gas water heater within a set detection time period, and determine the corresponding scale thickness and the current gas thermal efficiency based on the amount of scale generated. The consumption increase determination module is used to determine the thermal efficiency reduction rate of the gas water heater based on the scale thickness, and to determine the gas consumption increase of the gas water heater based on the thermal efficiency reduction rate. The gas consumption determination module is used to determine the first gas consumption of the gas water heater based on the current gas thermal efficiency, and to determine the second gas consumption of the gas water heater based on the first gas consumption and the increase in gas consumption.

9. A gas water heater, characterized in that, The gas water heater includes: At least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the gas consumption determination method for a gas water heater as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the gas consumption determination method for a gas water heater as described in any one of claims 1-7.

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