Gas combustion equipment and target gas flow determination method thereof, readable storage medium, computer program product and server

Abstract

The invention provides gas combustion equipment, a target gas flow determination method thereof, a readable storage medium, a computer program product and a server. The method comprises the following steps: acquiring installation place information used for representing an installation area where the gas combustion equipment is located; and gas proportional valve control parameters are determined according to the installation place information. The gas proportional valve control parameters suitable for the installation area where the equipment is located are correspondingly determined by recognizing the installation area of the gas combustion equipment, so that normal combustion of the equipment is guaranteed, and the situation that due to different installation areas, the combustion efficiency is reduced, and smoke emissions exceed the standard is avoided.

Description

Technical Field

[0001] The present disclosure relates to the field of gas combustion equipment control, and in particular to a gas combustion equipment and a method for determining a target gas flow rate thereof, a readable storage medium, a computer program product and a server. Background Art

[0002] Gas combustion equipment, such as gas water heaters, gas boilers, gas stoves, etc., usually obtain the required heat for utilization by burning a mixture of air and gas. In order to achieve the best combustion efficiency and combustion state, air and gas will be mixed in a certain ratio, namely the air-fuel ratio. The best air-fuel ratio of the equipment is usually measured under standard working conditions in the laboratory, and the relevant parameters are calibrated before the product leaves the factory. However, when the product is sold to different regions, due to the influence of altitude or gas composition, the actual combustion environment deviates from the standard working conditions in the laboratory, resulting in the equipment being unable to burn according to the predetermined air-fuel ratio, thereby affecting the combustion efficiency, and the smoke emissions exceed the standard due to incomplete combustion. Summary of the invention

[0003] In order to overcome the problems existing in the background technology, the present disclosure provides a gas combustion device and a method for determining a target gas flow rate thereof, a readable storage medium, a computer program product and a server.

[0004] A first aspect of an embodiment of the present disclosure provides a method for determining a target gas flow rate of a gas combustion device, wherein the gas combustion device includes a gas proportional valve for adjusting the gas flow rate, and the method includes:

[0005] Acquire installation site information for characterizing the installation area where the gas combustion equipment is located;

[0006] Determine the gas proportional valve control parameters based on the installation site information.

[0007] In some embodiments, the installation location information includes: administrative division information of the region where the device is installed, or a network IP address of the device installation location.

[0008] In some embodiments, the step of determining the gas proportional valve control parameter includes obtaining a corrected gas proportional valve control parameter according to installation site information.

[0009] In some embodiments, the gas flow V2 represented by the calibrated gas proportional valve control parameter is determined based on the standard gas flow V measured under standard working conditions and is calibrated according to the atmospheric pressure and gas Wobbe number of the area where the equipment is installed.

[0010] In some embodiments, the gas flow represented by the corrected gas proportional valve control parameter is Where K is the ratio of the Wobbe number of the gas in the installation area of ​​the equipment to the Wobbe number of the reference gas, Pa is the atmospheric pressure under standard working conditions, Pa2 is the atmospheric pressure in the installation area of ​​the equipment, and P g It is the gas pressure before the equipment measured under standard working conditions.

[0011] In some embodiments, the calibrated gas proportioning valve control parameters are pre-stored and correspond to several installation sites with similar altitudes and similar gas Wobbe numbers.

[0012] In some embodiments, the step of determining the gas proportional valve control parameters also includes: obtaining the air temperature and humidity of the installation area where the equipment is installed based on the installation site information, and correcting the calibrated gas proportional valve control parameters based on the air temperature and humidity to further determine the gas proportional valve control parameters.

[0013] A second aspect of an embodiment of the present disclosure provides a computer-readable storage medium having instructions stored thereon, which implement the above-mentioned method steps when executed by a processor.

[0014] A third aspect of an embodiment of the present disclosure provides a computer program product, which includes a computer program, and the computer program implements the above-mentioned method steps when executed by a processor.

[0015] A fourth aspect of the embodiments of the present disclosure provides a gas combustion device, which includes a burner for burning a mixture of gas and air, a gas proportional valve for controlling the flow of gas supplied to the burner, a controller connected to the gas proportional valve, and a communication unit connected to the controller; wherein the controller is configured to

[0016] Acquiring, via the communication unit, installation location information for characterizing an installation area where the gas combustion device is located;

[0017] Determine the gas proportional valve control parameters based on the installation site information;

[0018] Adjust the opening of the gas proportional valve accordingly according to the control parameters.

[0019] In some embodiments, the installation location information includes: administrative division information of the region where the device is installed, or a network IP address of the device installation location.

[0020] In some embodiments, the controller determines the gas proportional valve control parameter including obtaining a corrected gas proportional valve control parameter according to the installation site information.

[0021] In some embodiments, the gas flow V2 represented by the calibrated gas proportional valve control parameter is determined based on the standard gas flow V measured under standard working conditions and is calibrated according to the atmospheric pressure and gas Wobbe number of the area where the equipment is installed.

[0022] In some embodiments, the gas flow represented by the corrected gas proportional valve control parameter is Where K is the ratio of the Wobbe number of the gas in the area where the equipment is installed to the Wobbe number of the reference gas, Pa is the atmospheric pressure under standard working conditions, Pa2 is the atmospheric pressure in the area where the equipment is installed, and P g It is the gas pressure before the equipment measured under standard working conditions.

[0023] In some embodiments, the calibrated gas proportioning valve control parameters are pre-stored and correspond to several installation sites with similar altitudes and similar gas Wobbe numbers.

[0024] In some embodiments, the controller determines the gas proportional valve control parameters further including: acquiring the air temperature and humidity of the installation area where the equipment is installed based on the installation site information, and correcting the calibrated gas proportional valve control parameters based on the air temperature and humidity to further determine the gas proportional valve control parameters.

[0025] In some embodiments, the gas combustion device further comprises a fan for supplying air required for combustion to the burner; the controller is configured to determine a fan speed control parameter corresponding to the corrected gas proportional valve control parameter according to a predetermined air-fuel ratio.

[0026] In some embodiments, the controller is also configured to obtain the air temperature and humidity of the installation area where the equipment is installed based on the installation site information, and to correct the fan speed control parameters based on the air temperature and humidity to further determine the fan speed control parameters, and adjust the fan speed accordingly based on the parameters.

[0027] In some embodiments, the communication unit includes a communication interface, or a wireless communication module.

[0028] A fifth aspect of the embodiments of the present disclosure provides a server for communicating with a gas combustion device to determine a target gas flow rate of a gas proportional valve of the device, the server comprising a controller and a communication unit connected to the controller; wherein the controller is configured as

[0029] Acquiring, via the communication unit, installation site information for characterizing an installation area where the gas combustion device is located;

[0030] Determining a gas proportional valve control parameter according to the installation site information;

[0031] The gas proportional valve control parameter is output via a communication unit.

[0032] The technical solution provided by one or more embodiments of the present disclosure may include the following beneficial effects: by identifying the installation location of the gas combustion equipment to determine the gas proportional valve control parameters suitable for the installation area of ​​the equipment, the normal combustion of the equipment is ensured, and the combustion efficiency will not decrease or the smoke emissions will not exceed the standard due to the different installation areas. In some embodiments, the gas proportional valve control parameters corrected according to the atmospheric pressure and gas Wobbe number of the installation area of ​​the equipment can be obtained, thereby ensuring that the equipment is fully burned at a better air-fuel ratio. In other embodiments, the corrected gas proportional valve control parameters can be further modified according to the air temperature and humidity of the installation area of ​​the equipment, so that the equipment can reach the optimal combustion state close to the standard working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 It is a principle block diagram of a gas combustion device connected to a communication system in one embodiment of the present disclosure;

[0035] Figure 2 is a flow chart of a method for determining a target gas flow rate in one embodiment of the present disclosure;

[0036] Figure 3 is a flow chart of a method for determining a target gas flow rate in another embodiment of the present disclosure;

[0037] Figure 4 is a schematic diagram of determining a parameter curve by dividing different cities into regions according to altitude and Wobbe number in one embodiment of the present disclosure;

[0038] Figure 5 It is a schematic diagram of correcting the proportional valve current curve and the fan current curve in one embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] The embodiments shown will be described in detail below in conjunction with the accompanying drawings. However, these embodiments do not represent all embodiments consistent with the present disclosure, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all included in the protection scope requested by the attached claims.

[0040] Gas combustion equipment uses combustible gas as fuel, such as natural gas, city gas, liquefied gas, biogas, etc., and provides heat to meet the user's living needs by burning combustible gas, for example, a dual-purpose gas boiler that can provide domestic hot water and heating needs at the same time. The following will take the gas boiler as an example to illustrate the method and device of the present disclosure, but it is obvious that the method and device of the present disclosure are not limited to this.

[0041] like Figure 1 The communication system in one embodiment of the present disclosure shown includes a gas combustion device, a gateway 40 , a wireless router 50 , a server 60 , and a terminal 70 .

[0042] Taking a gas boiler as an example, the equipment includes a shell 10, a burner 11, a main heat exchanger 12, a smoke exhaust device 13, a fan 14, a gas valve assembly 15, and a water channel module, etc., which are accommodated in the shell 10. The shell 10 can be installed on the wall, and its back plate faces the wall. The burner 11 can be an atmospheric burner, which usually includes a burner unit, such as a plurality of fire row pieces arranged side by side (not shown). Each fire row piece will be provided with a gas-air mixing channel, and the gas and primary air transported by the gas transmission pipeline are mixed in the mixing channel and transferred to the fire hole located at the top of the fire row piece to burn and generate hot smoke. Since the structure and arrangement of the fire row piece are well known to those skilled in the art, the applicant will not repeat them here. The main heat exchanger 12 is usually arranged above the burner 11, and it can adopt a fin-tube heat exchanger, that is, a plurality of fins are arranged in the heat exchanger shell, and a hot water absorption pipe (not shown) passes through these fins in a circuitous manner. The heat carried by the hot flue gas generated by the burner 11 is absorbed by the fins and further transferred to the water flowing through the heat absorbing water pipe, and the heated water is output through the corresponding pipeline. The smoke exhaust device 13 is usually installed on the main heat exchanger 12, which includes a smoke hood and a smoke exhaust pipe arranged on the top of the smoke hood. The smoke generated by the combustion (including waste gas such as carbon monoxide and nitrogen oxides) will be collected by the smoke hood and discharged to the outside through the smoke exhaust pipe.

[0043] The gas valve assembly 15 is arranged on the gas supply pipeline, which generally includes a gas valve and a gas proportional valve integrated together. Both the gas valve and the gas proportional valve can be electrically controllable valves. The gas valve is used to connect or disconnect the gas supply channel, and the gas proportional valve is used to control the gas flow supplied to the burner. The working principle of the gas proportional valve is to adjust the output pressure of the proportional valve by controlling the valve opening, thereby controlling the output gas flow. In some embodiments, the valve opening can be controlled by changing the control parameters of the gas proportional valve, such as the input current of the gas proportional valve, or the voltage applied to both ends of the valve body. The fan 14 can be arranged below the burner 12 to drive the air flow, thereby providing the air required for combustion, and causing the smoke generated by combustion to be collected by the smoke hood of the smoke exhaust device. The speed of the fan can represent the air flow required for the combustion of the burner, thereby determining the ratio of the air flow to the gas flow according to the predetermined air-fuel ratio (air to gas ratio). In some embodiments, the fan speed can be controlled by changing the control parameters of the fan speed, such as the input current of the fan, or the voltage applied to both ends of the fan.

[0044] The water circuit module is usually installed on the bottom plate of the shell, and includes a heating return pipe and a heating outlet pipe extending out of the bottom plate of the shell 10. Among them, a heating return port 21 is formed at the end of the heating return pipe, and a heating outlet 24 is formed at the end of the heating outlet pipe. The heating return port 21 and the heating outlet 24 can be connected to an external radiator or a floor heating pipeline (not shown) through a pipeline to form a heating water circuit. The water circuit module also includes a bathroom water inlet 22 and a bathroom outlet 23 protruding from the bottom plate of the shell 10, so as to be connected to an external water point, such as a mixing valve, through a pipeline to form a bathroom water circuit. The water circuit module also includes a circulating pump 16, a three-way valve 17, and an auxiliary heat exchanger 18. The auxiliary heat exchanger 18 can adopt a traditional plate heat exchanger. A circulating water circuit flows through the circulating pump 16, the main heat exchanger 12, the auxiliary heat exchanger 18 in sequence, and returns to the circulating pump 16. The auxiliary heat exchanger 18 is connected to the bathroom water circuit and the circulating water circuit, so as to realize heat exchange between the two water circuits. The three-way valve 17 is arranged in the heating water circuit and the circulating water circuit, so as to connect the heating water circuit and the circulating water circuit with a water flow that can be selected.

[0045] A control assembly is arranged in the housing 10 for detecting and controlling the operation of various components and circuit devices in the gas combustion equipment. The control assembly can be a circuit board provided with several circuit devices, which includes a controller 31 and a communication unit 32. In some embodiments, the controller 31 can be a control circuit including a processor and a memory, and several electronic components connected in a certain wiring manner. The processor can be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor. In this embodiment, the processor is the control center of the gas combustion equipment, which uses various interfaces and lines to connect various parts of the equipment. For example, the controller 12 is wired electrically connected or wirelessly communicated with the gas valve assembly 15, the fan 14, the water pump 16, and the three-way valve 17.

[0046] The memory can be used to store instructions of any application or method operated on the processor, as well as various types of data. The above-mentioned processor implements various functions of the gas combustion equipment by running or executing programs or instructions stored in the memory, and calling data stored in the memory. The memory can include any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (PROM), magnetic memory, flash memory, solid-state memory, magnetic disk or optical disk, etc.

[0047] The communication unit 32 is connected to the controller 31 for communicating with external devices. In some embodiments, the communication unit 32 includes a communication interface, such as an electrical connector provided on a circuit board, which can be wiredly connected to an external device through a communication bus that complies with a specific industrial communication protocol, such as eBUS, RS232, RS422, or RS485; in other embodiments, the communication unit 32 includes a wireless communication module, which can be wirelessly connected to an external device through a short-range wireless communication technology, such as WIFI, ZigBee, or Bluetooth. For example, the wireless communication module can communicate with the wireless router 50 through a wireless LAN communication protocol such as 802.11n (i.e., WIFI), or communicate with the terminal 70 through a Bluetooth communication protocol.

[0048] The gateway 40 is a device for interconnecting different devices within the home, and interconnecting the home network with the external network. In this embodiment, the gateway 40 is connected to the communication unit 32 of the gas combustion device by wire through the above-mentioned communication bus, and is wirelessly connected to the wireless router 50 through WIFI. The wireless router 50 is connected to the server 60 via the Internet. The server 60 can be a single server or a cloud platform, which also includes a controller 62 and a communication unit 61. Since the controller 62 and the communication unit 61 are similar to the above-mentioned controller 31 and the communication unit 32, the applicant will not repeat them. The server 60 can communicate with the gas combustion device through the wireless router 50. The terminal 70 can be a smart phone, a laptop, a personal computer, a tablet computer, etc., which can communicate with the server 60 through the Internet, and can also communicate with the wireless router 50 through WIFI, thereby realizing communication with the gas combustion device. In some embodiments, the gas combustion device whose communication unit 32 includes a wireless communication module can also be directly connected to the terminal 70. The terminal 70 can be installed with an application for controlling the operation of the gas combustion device, such as an APP installed on a smart phone.

[0049] Figure 2 The steps of a method for determining a target gas flow rate in one embodiment are shown, and the execution of these method steps by the controllers 31 and 62 is described in detail below.

[0050] First, the installation location information of the device is obtained (step 201). The installation location information may be the network IP address of the device installation location. In some embodiments, the controller 31 requests the wireless router 50 to obtain a legal IP address via the communication unit 32. In other embodiments, after obtaining the IP address, the actual geographical location of the installation area of ​​the gas combustion device can be further obtained according to the mapping relationship between the IP address and the geographical location in the pre-stored IP address database. This actual geographical location does not need to be too accurate, and can be the administrative division information of the installation area, which can reach the city level, such as prefecture-level cities, counties, districts, etc. In some embodiments, the controller 31 can also bind with the application (such as APP) of the terminal 70 via the communication unit 32, and obtain the device installation location information through the automatic positioning function of the terminal 70, or the address information manually input by the user through the application interface. In the above embodiments, the acquisition of the installation location information is realized at the gas combustion device end. In other embodiments, the acquisition of the installation location information can also be realized at the server 60 end, that is, the controller 62 obtains the IP address of the wireless router 50 or the administrative division information of the installation area of ​​the gas combustion device via the communication unit 61. The administrative division information can be obtained by the controller 62 by querying the IP address database, or by accessing the application of the terminal 70. The IP address database can be stored in the memory of the gas combustion device, or in the memory of the server 60.

[0051] Subsequently, the controller 31, 62 determines the gas proportional valve control parameter according to the obtained installation site information (step 202). In some embodiments, the controller obtains the corrected gas proportional valve control parameter according to the installation site information, and the gas flow V2 represented by the corrected gas proportional valve control parameter is determined based on the standard gas flow V measured under the standard working conditions during the test and corrected according to the atmospheric pressure and gas Wobbe number of the installation area where the equipment is located.

[0052] Taking gas boiler as an example, according to the national standard GB6932-2015, Section 7.6, Table 12, the calculation formula for the measured heat load under the standard working conditions in the laboratory is:

[0053]

[0054] in

[0055] The measured heat load at -15℃, atmospheric pressure 101.3kPa, and dry gas condition;

[0056] Q1-15℃, atmospheric pressure 101.3kPa reference gas (such as natural gas code 12T) lower calorific value;

[0057] v Externally measured gas flow meter flow;

[0058] P a - atmospheric pressure during the test;

[0059] P m -Measure the gas pressure passing through the gas flow meter;

[0060] P g -Measure the gas pressure before the water heater;

[0061] t g - The temperature of the gas passing through the gas flow meter during measurement;

[0062] d-relative density of dry test gas;

[0063] dr - relative density of reference gas.

[0064] The above formula can be further transformed into

[0065]

[0066] in, The Huabai number is the benchmark gas.

[0067] It is well known to those skilled in the art that the Wobbe number is a parameter that characterizes the combustion characteristics of gas, also known as the Wobbe index, which means that when the pressure in front of the burner nozzle remains unchanged, the heat load of the gas is proportional to the calorific value of the gas and inversely proportional to the square root of the relative density of the gas. In gas engineering, the Wobbe number is mainly used to measure the interchangeability between different gases. Gases with the same Wobbe number can release the same heat load under the same combustion pressure. The composition of gas in different cities or regions may be different, which will lead to differences in the Wobbe number; in addition, due to the different altitudes of different cities or regions, the atmospheric pressure will also change. In some embodiments, assuming that the ratio of the Wobbe number of the gas in the installation area of ​​the equipment to the Wobbe number of the reference gas is K, and the atmospheric pressure in the installation area of ​​the equipment is Pa2, then the formula for the heat load Φ2 in the area is equivalent to:

[0068]

[0069] If we want to ensure the same efficient combustion state as in the test, that is, let Φ2 = Φ, the gas flow rate should be adjusted to

[0070]

[0071] It can also be seen from the formula that the adjustment of the gas flow rate is related to the atmospheric pressure and gas Wobbe number of the area where the equipment is installed. Therefore, the adjusted gas flow rate V2 can be determined by correcting the gas proportional valve control parameters, such as input current, voltage, etc.

[0072] The corrected gas proportional valve control parameters can be pre-calculated and stored in the memory of the gas combustion device or server. In some embodiments, in order to reduce the calculation complexity and storage capacity, several installation sites with similar altitudes and similar gas Wobbe numbers can be divided into one area, and the area only needs to correspond to one gas proportional valve control parameter. Figure 4 As shown, the gas Wobbe number is defined as the X-axis, and the altitude is defined as the Y-axis. The region can be divided according to the change of every 500 meters of altitude and every 2% of the gas Wobbe number. For example, the average altitudes of cities such as Shanghai, Suzhou, Wuxi, Changzhou, and Nantong are all within 10 meters, and the gas Wobbe numbers of these cities are close, so these cities can be divided into one region, corresponding to the parameter curve L; in addition, the average altitudes of Chengdu, Mianyang, Nanchong, Suining, Leshan, and Luzhou are all 500 meters, and the gas Wobbe numbers of these cities are close, so these cities can also be divided into one region, corresponding to the parameter curve M. Among them, the address in each region can be administrative division information, such as a prefecture-level city, county, or district, or it can be a network IP address of a city in the region. Accordingly, after obtaining the installation location information of the equipment according to step 201, the corresponding corrected gas proportional valve control parameter can be determined. The control parameter can be one or a group; in some embodiments, the control parameter can be, for example Figure 5 The gas proportional valve current curve V1 shown in , that is, the gas proportional valve current is gradually adjusted according to the required heat load. In some embodiments, step 202 is performed on the combustion equipment side, and the above-mentioned corrected control parameters are to be determined, and the controller 31 adjusts the opening of the gas proportional valve accordingly according to the control parameters, so that the gas proportional valve can adjust the gas flow according to the optimal combustion state. In other embodiments, step 202 is performed on the server side, and the above-mentioned corrected control parameters are to be determined, and the controller 62 outputs the control parameters via the communication unit 61, and finally transmits them to the gas combustion equipment, and then the controller 31 adjusts the opening of the gas proportional valve accordingly according to the control parameters.

[0073] Figure 3 The steps of a method for determining a target gas flow rate in another embodiment are shown, and the execution of these method steps by the controllers 31 and 62 is described in detail below.

[0074] First, obtain the installation site information of the equipment (step 301); then, determine the corrected gas proportional valve control parameters based on the obtained installation site information (step 302). Since steps 301 and 302 are the same as steps 201 and 202 in the above embodiment, the applicant will not repeat them here. In some embodiments, since the optimal air-fuel ratio, that is, the ratio of air volume to gas volume is predetermined, the corresponding fan speed control parameters can be determined based on the corrected gas proportional valve control parameters, wherein the corrected gas proportional valve control parameters represent the gas flow rate, and the fan speed represents the air flow rate. In some embodiments, the fan speed control parameters can be as follows Figure 5 As shown in the fan current curve F1, when the proportional valve opening is adjusted according to the gas proportional valve current curve V1, the fan speed can be adjusted accordingly according to the fan current curve F1 to ensure that the equipment burns according to the predetermined air-fuel ratio.

[0075] Next, the controller further obtains the air temperature and humidity data of the installation area where the device is installed according to the installation site information (step 303). In some embodiments, the controller 31 may send a weather information query request of the device installation site to the weather server via the communication unit 32, and the weather server may retrieve the weather information of the corresponding area according to the query request and feed the result back to the controller 31. The weather information includes the air temperature and humidity data of the installation area where the device is installed on that day or at the current moment. Similarly, the controller 62 may obtain the air temperature and humidity data of the installation area where the device is installed in the same way, and the applicant will not elaborate on it.

[0076] Subsequently, the controller corrects the corrected gas proportional valve control parameters according to the obtained air temperature and humidity data (step 304) to further determine the gas proportional valve control parameters. The relationship table between air temperature, humidity and correction coefficient can be pre-stored in the memory of the gas combustion device or server. Figure 5 As shown in the figure, in this embodiment, both the gas proportional valve control parameter and the fan speed control parameter need to be corrected. Assuming that the air temperature is 20°C and the humidity is 60%, by querying the following relationship table between air temperature, humidity and correction coefficient, the correction coefficient of the proportional valve current can be obtained as K GV66 , the correction factor of fan current is K Fan66 , then multiply the gas proportional valve current curve V1 and the fan current curve F1 by the corresponding coefficient K GV66 and K Fan66, thus obtaining the corrected gas proportional valve control parameters and fan speed control parameters, namely the gas proportional valve current curve V2 and the fan current curve F2. These correction coefficients in the table are obtained through experiments and calculations in the laboratory in the following way: when the air temperature-humidity deviates from the air temperature-humidity under standard working conditions, the proportional valve opening and the fan speed are adjusted accordingly to achieve the same heat load under standard working conditions.

[0077]

[0078] In some embodiments, the above steps are all performed on the device side, and the controller 31 adjusts the opening of the gas proportional valve and the fan speed according to the corrected control parameters, so that the device can achieve an optimal combustion state close to the standard working conditions. In other embodiments, the above steps are all performed on the server side, and the controller 62 outputs the corrected control parameters via the communication unit 61, and finally transmits them to the gas combustion device, and the controller 31 adjusts the opening of the gas proportional valve and the fan speed according to the corrected control parameters.

[0079] By identifying the installation location of the gas combustion equipment, the gas proportional valve control parameters suitable for the area where the equipment is installed are determined accordingly, thereby ensuring normal combustion of the equipment, and not causing a decrease in combustion efficiency or excessive smoke emissions due to different installation areas. In some embodiments, the gas proportional valve control parameters corrected according to the atmospheric pressure and gas Wobbe number of the area where the equipment is installed can be obtained, thereby ensuring that the equipment is fully burned at a better air-fuel ratio. In other embodiments, the corrected gas proportional valve control parameters can be further modified according to the air temperature and humidity of the area where the equipment is installed, so that the equipment can reach an optimal combustion state close to the standard working conditions.

[0080] In some embodiments, the correction of the gas proportional valve control parameter according to the atmospheric pressure and the gas Wobbe number and the correction according to the air temperature-humidity can be performed selectively or in different orders. That is, the gas proportional valve control parameter determined according to the equipment installation location information is obtained by correcting according to the atmospheric pressure and the gas Wobbe number of the equipment installation area and / or correcting according to the air temperature and humidity of the equipment installation area.

[0081] All or part of the steps in the method of the above disclosed embodiment can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of each of the above method embodiments can be implemented. Among them, the computer program includes computer program code, which can be in source code form, object code form, executable file or some intermediate form. The readable storage medium can include any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (PROM), magnetic memory, flash memory, solid-state memory, magnetic disk or optical disk, etc.

[0082] It should be understood that the methods and devices disclosed in the above disclosure can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units in the controller is only a division of logical functions. There may be other division methods in actual implementation. For example, multiple units can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the connection between the components, components, and units discussed above can be electrical, mechanical, or other connection forms; it can be a direct connection or an indirect connection through some interfaces, etc.; it can be a wired connection or a wireless communication.

[0083] In addition, the units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; some or all of the units may be selected according to actual needs to achieve the purpose of the disclosed embodiment scheme. In addition, the functional units in the above embodiments may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0084] It should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A method for determining a target gas flow rate of a gas combustion device, wherein the gas combustion device comprises a gas proportional valve for adjusting the gas flow rate, characterized in that: The method includes: Acquire installation site information for characterizing the installation area where the gas combustion equipment is located; The gas proportional valve control parameters are determined according to the installation site information.

2. The method for determining the target gas flow rate of a gas combustion device according to claim 1, characterized in that: The installation location information includes the administrative division information of the area where the device is installed, or the network IP address of the device installation location.

3. The method for determining the target gas flow rate of a gas combustion device according to claim 1, characterized in that: The step of determining the control parameters of the gas proportional valve includes obtaining the corrected control parameters of the gas proportional valve according to the installation site information.

4. The method for determining the target gas flow rate of a gas combustion device according to claim 3, characterized in that: The gas flow V2 represented by the corrected gas proportional valve control parameter is determined based on the standard gas flow V measured under standard working conditions and corrected according to the atmospheric pressure and gas Wobbe number of the area where the equipment is installed.

5. The method for determining the target gas flow rate of a gas combustion device according to claim 4, characterized in that: The gas flow represented by the corrected gas proportional valve control parameter Where K is the ratio of the gas Wobbe number in the area where the equipment is installed to the Wobbe number of the reference gas, P a is the atmospheric pressure under standard working conditions, P a2 P is the atmospheric pressure in the area where the equipment is installed. g It is the gas pressure before the equipment measured under standard working conditions.

6. The method for determining the target gas flow rate of a gas combustion device according to claim 3, characterized in that: The corrected gas proportional valve control parameters are pre-stored and correspond to a number of installation sites with similar altitudes and similar gas Wobbe numbers.

7. The method for determining a target gas flow rate of a gas combustion device according to claim 3, characterized in that: The step of determining the gas proportional valve control parameters also includes obtaining the air temperature and humidity of the installation area of ​​the equipment according to the installation site information, and correcting the corrected gas proportional valve control parameters according to the air temperature and humidity to further determine the gas proportional valve control parameters.

8. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

9. A computer program product comprising a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A gas combustion device, comprising a burner for burning a mixture of gas and air, a gas proportional valve for controlling the flow of gas supplied to the burner, a controller connected to the gas proportional valve, and a communication unit connected to the controller; wherein: The controller is configured to Acquiring, via the communication unit, installation location information for characterizing an installation area where the gas combustion device is located; Determining a gas proportional valve control parameter according to the installation site information; The opening of the gas proportional valve is adjusted accordingly according to the control parameters.

11. The gas combustion device according to claim 10, characterized in that: The installation location information includes the administrative division information of the area where the device is installed, or the network IP address of the device installation location.

12. The gas combustion device according to claim 10, characterized in that: The controller determines the control parameter of the gas proportional valve, including obtaining a corrected control parameter of the gas proportional valve according to the installation site information.

13. The gas combustion device according to claim 12, characterized in that: The gas flow V2 represented by the corrected gas proportional valve control parameter is determined based on the standard gas flow V measured under standard working conditions and corrected according to the atmospheric pressure and gas Wobbe number of the area where the equipment is installed.

14. The gas combustion device according to claim 13, characterized in that: The gas flow represented by the corrected gas proportional valve control parameter Where K is the ratio of the gas Wobbe number in the area where the equipment is installed to the Wobbe number of the reference gas, P a is the atmospheric pressure under standard working conditions, P a2 P is the atmospheric pressure in the area where the equipment is installed. g It is the gas pressure before the equipment measured under standard working conditions.

15. The gas combustion device according to claim 12, characterized in that: The corrected gas proportional valve control parameters are pre-stored and correspond to a number of installation sites with similar altitudes and similar gas Wobbe numbers.

16. The gas combustion device according to claim 12, characterized in that: The controller determines the gas proportional valve control parameters and further includes obtaining the air temperature and humidity of the installation area where the equipment is installed according to the installation site information, and correcting the corrected gas proportional valve control parameters according to the air temperature and humidity to further determine the gas proportional valve control parameters.

17. The gas combustion device according to claim 12, characterized in that: The gas combustion device further comprises a fan for supplying air required for combustion to the burner; the controller is configured to determine a fan speed control parameter corresponding to the corrected gas proportional valve control parameter according to a predetermined air-fuel ratio.

18. The gas combustion device according to claim 17, characterized in that: The controller is also configured to obtain the air temperature and humidity of the installation area where the equipment is installed according to the installation site information, and to correct the fan speed control parameter according to the air temperature and humidity to further determine the fan speed control parameter, and adjust the fan speed accordingly according to the parameter.

19. The gas combustion device according to claim 10, characterized in that: The communication unit includes a communication interface or a wireless communication module.

20. A server, used for communicating with a gas combustion device to determine a target gas flow rate of a gas proportional valve of the device, comprising a controller and a communication unit connected to the controller; wherein: The controller is configured to Acquiring, via the communication unit, installation location information for characterizing an installation area where the gas combustion device is located; Determining a gas proportional valve control parameter according to the installation site information; The gas proportional valve control parameter is output via a communication unit.

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