Valve control method, device and equipment of combustion equipment, combustion equipment and medium

Abstract

The invention provides a valve control method, device and equipment of combustion equipment, the combustion equipment and a medium, fuel of the combustion equipment enters the combustion equipment through a pipeline and a valve, target supply pressure and to-be-treated supply pressure of the pipeline are obtained, and a combustion efficiency mean value of the combustion equipment within a first preset time period under the action of the to-be-treated supply pressure is obtained; based on the target supply pressure, the initial combustion power upper limit of the combustion equipment is obtained, and based on the initial combustion power upper limit, the initial opening degree of a valve is determined; the combustion equipment is controlled to operate according to the initial opening degree, and in the operation process, current supply pressure information of the pipeline is determined based on the operation combustion efficiency and the combustion efficiency mean value of the combustion equipment; on the basis of the current supply pressure information, the opening degree of the valve is controlled, so that fuel entering the combustion equipment through the valve meets the requirement for the preset mixing proportion of air, and the situation that the combustion equipment cannot obtain enough fuel from the pipeline to be mixed with air for combustion due to the fact that the current supply pressure of the pipeline is reduced is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of combustion equipment, and in particular to a valve control method for combustion equipment, a valve control device for combustion equipment, an electronic device, a combustion equipment and a computer-readable medium. Background Art

[0002] In the related technology, water heaters are widely used in daily life, and water heaters can quickly supply sanitary hot water to users. Premixed gas water heaters can mix air and gas in advance to ensure that the gas can fully contact with oxygen during the combustion process, making the fuel burn more thoroughly and improving the fuel combustion efficiency, which not only saves fuel but also reduces the emissions generated by combustion.

[0003] However, premixed gas water heaters require precise control of the mixing ratio of air and gas. In related technologies, the air intake of premixed gas water heaters per unit time is fixed, while the gas intake is related to the intake pressure of the gas pipeline. If the intake pressure of the gas pipeline is low, the intake pressure of the water heater in the user's home will also decrease accordingly, which may make it impossible to extract enough gas and air to mix by adjusting the opening and closing degree of the proportional valve of the premixed gas water heater to meet the combustion power requirements of the combustion equipment. When the gas volume is insufficient, flame separation may occur, that is, the flame will deviate from the normal combustion area of ​​the burner during the combustion process, making it impossible to maintain stable combustion. Summary of the invention

[0004] The embodiments of the present invention provide a valve control method, device, electronic device, combustion device and computer-readable storage medium for a combustion device to solve the problem that a premixed gas water heater needs to accurately control the mixing ratio of air and gas. The air intake volume of the premixed gas water heater per unit time is fixed, while the gas intake volume is related to the intake pressure of the gas pipeline. If the intake pressure of the gas pipeline is low, the intake pressure of the water heater in the user's home will also be reduced accordingly, which may lead to the problem that sufficient gas cannot be extracted by adjusting the opening and closing degree of the proportional valve of the premixed gas water heater.

[0005] The embodiment of the present invention discloses a valve control method for a combustion device, which is applied to the combustion device, wherein the combustion device is used to mix and burn a preset fuel and air, and the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, and the method includes:

[0006] Obtaining a target supply pressure of the pipeline and at least one supply pressure to be processed, and obtaining an average value of the combustion efficiency of the combustion equipment within a first preset time period under the supply pressure to be processed;

[0007] Based on the target supply pressure, obtaining an initial combustion power upper limit of the combustion device, and based on the initial combustion power upper limit, determining an initial opening degree of a valve of the combustion device;

[0008] Controlling the combustion device to operate according to the initial opening and closing degree, and during the operation, determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion device and the combustion efficiency average; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed;

[0009] Based on the current supply pressure information of the pipeline, the opening and closing degree of the valve is controlled so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air.

[0010] Optionally, the supply pressure to be processed includes a first supply pressure to be processed and a second supply pressure to be processed; the target supply pressure is greater than the second supply pressure to be processed, and the second supply pressure to be processed is greater than the first supply pressure to be processed;

[0011] Under the action of the first pending supply pressure, the combustion device has a first fuel inlet pressure upper limit; under the action of the second pending supply pressure, the combustion device has a second fuel inlet pressure upper limit; under the action of the target supply pressure, the fuel inlet pressure of the combustion device includes the first fuel inlet pressure upper limit, the second fuel inlet pressure upper limit and a preset target fuel inlet pressure; the target fuel inlet pressure is greater than the second fuel inlet pressure upper limit, and the second fuel inlet pressure upper limit is greater than the first fuel inlet pressure upper limit.

[0012] Optionally, obtaining an initial combustion power upper limit of the combustion device based on the target supply pressure includes:

[0013] Acquire a first relationship between a fuel inlet pressure of the combustion device and a combustion power of the combustion device under the target supply pressure;

[0014] Based on the first relationship, the combustion power corresponding to the first fuel admission pressure upper limit is determined, and the combustion power corresponding to the first fuel admission pressure upper limit is used as the initial combustion power upper limit.

[0015] Optionally, determining the initial opening and closing degree of the valve of the combustion device based on the initial combustion power upper limit includes:

[0016] Acquire a second relationship between the combustion power of the combustion device and the opening degree of the valve under the target supply pressure;

[0017] Based on the second relationship, an initial opening / closing degree corresponding to the initial combustion power upper limit is determined.

[0018] Optionally, the combustion efficiency mean value includes a first combustion efficiency mean value corresponding to a first supply pressure to be processed of the supply pressure to be processed; and determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion equipment and the combustion efficiency mean value includes:

[0019] Obtaining the operating combustion efficiency of the combustion equipment at at least one moment;

[0020] If the operating combustion efficiency in the second preset time period is greater than the first combustion efficiency average value, determining that the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure;

[0021] If the operating combustion efficiency within the third preset time period is less than the first combustion efficiency average value, the current supply pressure of the pipeline is determined to be the first supply pressure to be processed.

[0022] Optionally, controlling the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets a preset mixing ratio requirement with the air includes:

[0023] If the current supply pressure of the pipeline is the first supply pressure to be processed, maintaining the opening and closing degree of the valve at the initial opening and closing degree;

[0024] If the current supply pressure of the pipeline is greater than the first supply pressure to be processed, determining the combustion power corresponding to a second upper limit of the fuel inlet pressure of the second supply pressure to be processed based on a first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device, and using the combustion power corresponding to the second upper limit of the fuel inlet pressure as an updated combustion power upper limit;

[0025] Based on the second relationship, an updated opening / closing degree corresponding to the updated combustion power upper limit is determined.

[0026] Optionally, the combustion efficiency mean value includes a second combustion efficiency mean value corresponding to the second to-be-processed supply pressure; after determining the updated opening / closing degree corresponding to the updated combustion power upper limit based on the second relationship, the method further includes:

[0027] Controlling the combustion device to operate according to the updated opening and closing degree, and obtaining the updated operating combustion efficiency of the combustion device at at least one moment in the process of operating according to the updated opening and closing degree;

[0028] If the updated operating combustion efficiency within a fourth preset time period is greater than the second combustion efficiency average, determining the current supply pressure of the pipeline as the target supply pressure;

[0029] If the updated operating combustion efficiency within the fifth preset time period is less than the second combustion efficiency average value, the current supply pressure of the pipeline is determined to be the second to-be-processed supply pressure.

[0030] Optionally, controlling the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets a preset mixing ratio requirement with the air includes:

[0031] If the current supply pressure of the pipeline is the second supply pressure to be processed, maintaining the opening and closing degree of the valve at the updated opening and closing degree;

[0032] If the current supply pressure of the pipeline is the target supply pressure, the combustion power corresponding to the target fuel entry pressure is determined based on the first relationship, and the combustion power corresponding to the target fuel entry pressure is used as the target combustion power.

[0033] Optionally, controlling the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets a preset mixing ratio requirement with the air includes:

[0034] Based on the second relationship, determining a target opening / closing degree corresponding to the target combustion power;

[0035] The opening and closing degree of the valve is adjusted to the target opening and closing degree.

[0036] The embodiment of the present invention further discloses a valve control device for a combustion device, which is applied to the combustion device, wherein the combustion device is used to mix and burn a preset fuel and air, wherein the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, and the device comprises:

[0037] A pressure acquisition module, used to acquire a target supply pressure of the pipeline and at least one supply pressure to be processed, and to acquire a combustion efficiency average of the combustion equipment within a first preset time period under the supply pressure to be processed;

[0038] an initial combustion power upper limit acquisition module, used to acquire the initial combustion power upper limit of the combustion device based on the target supply pressure, and determine the initial opening degree of the valve of the combustion device based on the initial combustion power upper limit;

[0039] an operation control module, used for controlling the combustion device to operate according to the initial opening and closing degree, and during the operation, determining the current supply pressure information of the pipeline based on the operation combustion efficiency of the combustion device and the combustion efficiency mean; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed;

[0040] The opening and closing degree control module is used to control the opening and closing degree of the valve based on the current supply pressure information of the pipeline, so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air.

[0041] Optionally, the supply pressure to be processed includes a first supply pressure to be processed and a second supply pressure to be processed; the target supply pressure is greater than the second supply pressure to be processed, and the second supply pressure to be processed is greater than the first supply pressure to be processed;

[0042] Under the action of the first pending supply pressure, the combustion device has a first fuel inlet pressure upper limit; under the action of the second pending supply pressure, the combustion device has a second fuel inlet pressure upper limit; under the action of the target supply pressure, the fuel inlet pressure of the combustion device includes the first fuel inlet pressure upper limit, the second fuel inlet pressure upper limit and a preset target fuel inlet pressure; the target fuel inlet pressure is greater than the second fuel inlet pressure upper limit, and the second fuel inlet pressure upper limit is greater than the first fuel inlet pressure upper limit.

[0043] Optionally, the initial combustion power upper limit acquisition module includes:

[0044] A first relationship acquisition submodule, used for acquiring a first relationship between a fuel inlet pressure of the combustion device and a combustion power of the combustion device under the target supply pressure;

[0045] The initial combustion power upper limit acquisition submodule is used to determine the combustion power corresponding to the first fuel entry pressure upper limit based on the first relationship, and use the combustion power corresponding to the first fuel entry pressure upper limit as the initial combustion power upper limit.

[0046] Optionally, the initial combustion power upper limit acquisition module includes:

[0047] A second relationship acquisition submodule, used to acquire a second relationship between the combustion power of the combustion device and the opening degree of the valve under the target supply pressure;

[0048] The initial opening / closing degree determining submodule is used to determine the initial opening / closing degree corresponding to the initial combustion power upper limit based on the second relationship.

[0049] Optionally, the combustion efficiency mean value includes a first combustion efficiency mean value corresponding to a first supply pressure to be processed of the supply pressure to be processed; and the operation control module includes:

[0050] An operating combustion efficiency acquisition submodule, used to acquire the operating combustion efficiency of the combustion equipment at at least one moment;

[0051] a first current supply pressure determination submodule, configured to determine that the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure if the operating combustion efficiency within a second preset time period is greater than the first combustion efficiency average value;

[0052] The second current supply pressure determination submodule is used to determine the current supply pressure of the pipeline as the first to-be-processed supply pressure if the operating combustion efficiency within a third preset time period is less than the first combustion efficiency average value.

[0053] Optionally, the opening and closing degree control module includes:

[0054] a first maintaining submodule, configured to maintain the opening and closing degree of the valve at the initial opening and closing degree if the current supply pressure of the pipeline is the first supply pressure to be processed;

[0055] The updating combustion power upper limit is used as a submodule for determining the combustion power corresponding to the second upper limit of the fuel inlet pressure of the second to-be-processed supply pressure of the to-be-processed supply pressure based on the first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device if the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure, and using the combustion power corresponding to the second upper limit of the fuel inlet pressure as the updated combustion power upper limit;

[0056] The updated opening / closing degree determining submodule is used to determine the updated opening / closing degree corresponding to the updated combustion power upper limit based on the second relationship.

[0057] Optionally, the combustion efficiency mean value includes a second combustion efficiency mean value corresponding to the second supply pressure to be processed; and the opening and closing degree control module includes:

[0058] An operation control submodule, used to control the combustion device to operate according to the updated opening and closing degree, and in the process of operating according to the updated opening and closing degree, obtain the updated operation combustion efficiency of the combustion device at at least one moment;

[0059] a third current supply pressure determination submodule, configured to determine the current supply pressure of the pipeline as the target supply pressure if the updated operating combustion efficiency within a fourth preset time period is greater than the second combustion efficiency average;

[0060] The fourth current supply pressure determination submodule is configured to determine the current supply pressure of the pipeline as the second to-be-processed supply pressure if the updated operating combustion efficiency within a fifth preset time period is less than the second combustion efficiency average.

[0061] Optionally, the opening and closing degree control module includes:

[0062] a second maintaining submodule, configured to maintain the opening and closing degree of the valve at the updated opening and closing degree if the current supply pressure of the pipeline is the second supply pressure to be processed;

[0063] The target combustion power is used as a submodule to determine the combustion power corresponding to the target fuel entry pressure based on the first relationship if the current supply pressure of the pipeline is the target supply pressure, and use the combustion power corresponding to the target fuel entry pressure as the target combustion power.

[0064] Optionally, the opening and closing degree control module includes:

[0065] a target opening / closing degree determining submodule, configured to determine a target opening / closing degree corresponding to the target combustion power based on the second relationship;

[0066] The adjustment submodule is used to adjust the opening and closing degree of the valve to the target opening and closing degree.

[0067] The embodiment of the present invention further discloses an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus;

[0068] The memory is used to store computer programs;

[0069] The processor is used to implement the method described in the embodiment of the present invention when executing the program stored in the memory.

[0070] The embodiment of the present invention further discloses one or more computer-readable media on which instructions are stored. When executed by one or more processors, the processors are enabled to execute the method described in the embodiment of the present invention.

[0071] The embodiment of the present invention further discloses a combustion device for mixing and burning a preset fuel and air, wherein the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, so that the combustion device executes the method described in the embodiment of the present invention.

[0072] The embodiments of the present invention include the following advantages:

[0073] In an embodiment of the present invention, the combustion device is used to mix and burn a preset fuel and air, and the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device. The combustion device obtains a target supply pressure of the pipeline and at least one supply pressure to be processed, and obtains the average value of the combustion efficiency of the combustion device within a first preset time period under the effect of the supply pressure to be processed. Based on the target supply pressure, the combustion device obtains the initial combustion power upper limit of the combustion device, and determines the initial opening and closing degree of the valve of the combustion device based on the initial combustion power upper limit. The combustion device controls the combustion device to operate according to the initial opening and closing degree, and during the operation, determines the current supply pressure information of the pipeline based on the operating combustion efficiency and the average value of the combustion efficiency of the combustion device; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed. Based on the current supply pressure information of the pipeline, the combustion device controls the opening and closing degree of the valve so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air. In an embodiment of the present invention, the current supply pressure information of the pipeline is determined based on the operating combustion efficiency and the average combustion efficiency of the combustion equipment, and based on the current supply pressure information of the pipeline, the combustion equipment controls the opening and closing degree of the valve so that the fuel entering the combustion equipment through the valve meets the preset mixing ratio requirement with the air, thereby avoiding the situation where the combustion equipment is unable to obtain sufficient fuel and air for mixed combustion from the pipeline when the current supply pressure of the pipeline is reduced from the target supply pressure to the supply pressure to be processed, and the combustion power of the combustion equipment is unable to reach the target combustion power corresponding to the target supply pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 is a flow chart of steps of a valve control method for a combustion device provided in an embodiment of the present invention;

[0075] Figure 2 is a structural schematic diagram of a fuel inlet of a combustion device provided in an embodiment of the present invention;

[0076] Figure 3 It is a schematic diagram of the relationship between the valve opening and closing degree of a combustion device and the fuel inlet pressure of the combustion device provided in an embodiment of the present invention;

[0077] Figure 4 It is a schematic diagram of the relationship between the valve opening and closing degree of a combustion device and the combustion power of the combustion device provided in an embodiment of the present invention;

[0078] Figure 5 is a flowchart of steps of another valve control method for combustion equipment provided in an embodiment of the present invention;

[0079] Figure 6 is a structural block diagram of a valve control device for a combustion device provided in an embodiment of the present invention;

[0080] Figure 7 is a block diagram of an electronic device provided in an embodiment of the present invention;

[0081] Figure 8 is a schematic diagram of a computer-readable medium provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0082] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0083] To facilitate understanding of the technical solutions and technical effects of the embodiments of the present invention, the prior art of the present invention is briefly described below.

[0084] In the related technology, premixed gas water heaters need to precisely control the mixing ratio of air and gas. If there is too little gas, it will cause flame separation; if there is too much gas, it may cause flashback. Flame separation refers to the process in which the flame deviates from the normal combustion area of ​​the burner during the combustion process and cannot maintain stable combustion. Flashback refers to the process in which the flame flows back into the gas supply system during the combustion process, causing equipment damage and even safety accidents.

[0085] Reference Figure 1 , shows a flow chart of the steps of a valve control method for a combustion device provided in an embodiment of the present invention, which is applied to a combustion device, wherein the combustion device is used to mix and burn a preset fuel and air, and the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, and specifically may include the following steps:

[0086] Step 101, obtaining a target supply pressure of the pipeline and at least one supply pressure to be processed, and obtaining an average value of the combustion efficiency of the combustion equipment within a first preset time period under the effect of the supply pressure to be processed;

[0087] In the embodiment of the present invention, the combustion device can mix and burn a preset fuel and air. Specifically, the combustion device can be a premixed gas water heater, and the fuel can be gas, natural gas, etc.

[0088] The fuel of the combustion device enters the combustion device through a preset pipeline and a valve of the combustion device, wherein the valve can be a proportional valve.

[0089] For fuel, the pipeline has a fuel supply pressure; the pressure of the fuel when it enters the combustion equipment can be called the fuel entry pressure. Among them, the fuel supply pressure can also be called the primary pressure, and the fuel entry pressure can also be called the secondary pressure. It should be noted that the size of the fuel supply pressure will affect the size of the fuel entry pressure. The greater the fuel supply pressure, the greater the fuel entry pressure.

[0090] Reference Figure 2 , showing a schematic structural diagram of a fuel inlet of a combustion device provided in an embodiment of the present invention.

[0091] The fuel inlet of the combustion equipment includes a proportional valve, a safety valve, a primary pressure detection port and a secondary pressure detection port. The fuel enters the combustion equipment through the pipeline, the primary pressure detection port, the proportional valve and the secondary pressure detection port. Among them, the primary pressure detection port is used to detect the fuel supply pressure of the pipeline, and the secondary pressure detection port is used to detect the fuel inlet pressure when the fuel enters the combustion equipment.

[0092] In an embodiment of the present invention, the combustion device can obtain the fuel supply pressure of the pipeline, and the fuel supply pressure includes a target supply pressure and at least one supply pressure to be processed. When the fuel supply pressure of the pipeline is the supply pressure to be processed, the combustion efficiency average of the combustion device in the first preset time period can be obtained.

[0093] In some embodiments of the present invention, the supply pressure to be processed includes a first supply pressure to be processed and a second supply pressure to be processed; the target supply pressure is greater than the second supply pressure to be processed, and the second supply pressure to be processed is greater than the first supply pressure to be processed;

[0094] Under the action of the first pending supply pressure, the combustion device has a first fuel inlet pressure upper limit; under the action of the second pending supply pressure, the combustion device has a second fuel inlet pressure upper limit; under the action of the target supply pressure, the fuel inlet pressure of the combustion device includes the first fuel inlet pressure upper limit, the second fuel inlet pressure upper limit and a preset target fuel inlet pressure; the target fuel inlet pressure is greater than the second fuel inlet pressure upper limit, and the second fuel inlet pressure upper limit is greater than the first fuel inlet pressure upper limit.

[0095] In an embodiment of the present invention, the fuel supply pressure includes a target supply pressure and at least one supply pressure to be processed. The supply pressure to be processed includes a first supply pressure to be processed and a second supply pressure to be processed, the target supply pressure is greater than the second supply pressure to be processed, and the second supply pressure to be processed is greater than the first supply pressure to be processed.

[0096] Under the action of the first supply pressure to be processed, the combustion device has a first upper limit of the fuel inlet pressure; under the action of the second supply pressure to be processed, the combustion device has a second upper limit of the fuel inlet pressure; under the action of the target supply pressure, the fuel inlet pressure of the combustion device includes the first upper limit of the fuel inlet pressure, the second upper limit of the fuel inlet pressure and the preset target fuel inlet pressure. The target fuel inlet pressure is greater than the second upper limit of the fuel inlet pressure, and the second upper limit of the fuel inlet pressure is greater than the first upper limit of the fuel inlet pressure.

[0097] It should be noted that the combustion equipment has a target combustion power. The target combustion power of the combustion equipment has a corresponding target fuel entry pressure. When designing the combustion equipment, it usually has a target combustion power. In order to achieve the target combustion power, the fuel entry pressure required by the combustion equipment usually does not exceed the target fuel entry pressure. Therefore, under the action of the fuel supply pressure of the pipeline, as long as the fuel entry pressure of the combustion equipment is not lower than the target fuel entry pressure, the combustion equipment can operate normally and achieve the target combustion power; and at this time, by controlling the opening and closing degree of the valve, the fuel entering the combustion equipment through the valve can meet the preset mixing ratio requirements with the air.

[0098] If the fuel supply pressure of the pipeline is the target supply pressure, then under the action of the target supply pressure, the fuel inlet pressure of the combustion equipment can reach the target fuel inlet pressure, and the combustion equipment can operate normally. By controlling the opening and closing degree of the valve, the fuel entering the combustion equipment through the valve can also meet the preset mixing ratio requirements with the air. However, if the combustion equipment is located in an area with a high altitude or there are special circumstances in which the combustion equipment is partially installed (such as unstable air pressure in the area, non-compliant installation of the gas nozzle, etc.), the fuel supply pressure of the pipeline will be reduced from the target supply pressure to the first pending supply pressure or the second pending supply pressure.

[0099] Under the first supply pressure to be processed, the combustion device has a first upper limit of the fuel inlet pressure; under the second supply pressure to be processed, the combustion device has a second upper limit of the fuel inlet pressure; the target fuel inlet pressure is greater than the second upper limit of the fuel inlet pressure, and the second upper limit of the fuel inlet pressure is greater than the first upper limit of the fuel inlet pressure. Therefore, when the fuel supply pressure of the pipeline is reduced from the target supply pressure to the first supply pressure to be processed or the second supply pressure to be processed, the fuel inlet pressure of the combustion device cannot reach the target fuel inlet pressure, and it is impossible to extract enough fuel and air to mix by adjusting the valve opening of the combustion device to achieve the target combustion power of the combustion device.

[0100] In a specific example, the target supply pressure of the pipeline is 2kPa (kilopascals). Under the target supply pressure of 2kPa, the fuel entry pressure of the combustion equipment is generally between 1.6kPa and 2kPa. The target combustion power of the combustion equipment is 30kw (kilowatts). In order to achieve the target combustion power, the fuel entry pressure required by the combustion equipment will usually not exceed 1.6kPa. Therefore, under the action of the fuel supply pressure of the pipeline, as long as the fuel entry pressure of the combustion equipment is not lower than 1.6kPa, the combustion equipment can operate normally and achieve the target combustion power. And at this time, by controlling the opening and closing degree of the valve, the fuel entering the combustion equipment through the valve can meet the preset mixing ratio requirements with the air.

[0101] The first supply pressure to be processed of the pipeline is 1kpa, and the second supply pressure to be processed is 1.5kpa. Under the first supply pressure to be processed of 1kpa, the combustion equipment has a first fuel inlet pressure upper limit of 0.9kpa; under the second supply pressure to be processed of 1.5kpa, the combustion equipment has a second fuel inlet pressure upper limit of 1.4kpa. When the fuel supply pressure of the pipeline is reduced from 2kpa to 1kpa or 1.5kpa, the fuel inlet pressure of the combustion equipment cannot reach the target fuel inlet pressure of 1.6kpa, and it is impossible to extract enough fuel and air to mix by adjusting the valve opening of the combustion equipment to achieve the target combustion power of the combustion equipment.

[0102] In the embodiment of the present invention, the combustion device can calculate the combustion power required by the combustion device according to the temperature difference between the set target water outlet temperature and the current water outlet temperature and the water flow rate. When the fuel supply pressure of the pipeline is the target supply pressure, the actual output power of the combustion device is substantially close to the calculated required combustion power. The calculation formula of the actual combustion power is:

[0103] P Act =C×(T 出 -T 进 )×F;

[0104] Among them, P Act is the actual combustion power; C is the specific heat capacity of water, which can be 4.2×10 3 J / (kg·℃), J is joule, kg is kilogram; T 出 、T 进 They are the outlet and inlet water temperatures of the combustion equipment, in degrees Celsius, and F is the water flow rate, in L / min (liters / minute).

[0105] The formula for calculating combustion efficiency is:

[0106] n=P Act / P Cal

[0107] Where n is the combustion efficiency, P Cal is the calculated required combustion power.

[0108] Step 102, based on the target supply pressure, obtaining an initial combustion power upper limit of the combustion device, and based on the initial combustion power upper limit, determining an initial opening degree of a valve of the combustion device;

[0109] In an embodiment of the present invention, when the fuel supply pressure of the pipeline is reduced from the target supply pressure to the first supply pressure to be processed or the second supply pressure to be processed, the fuel inlet pressure of the combustion device cannot reach the target fuel inlet pressure, and it is impossible to extract enough fuel and mix with air by adjusting the valve opening of the combustion device to achieve the target combustion power of the combustion device. Therefore, it is necessary to limit the combustion power of the combustion device and adjust the valve opening to ensure that the fuel obtained by the combustion device from the pipeline meets the preset mixing ratio requirement with the air, and the combustion power of the combustion device can reach the limited combustion power. In an embodiment of the present invention, the combustion device can obtain the initial combustion power upper limit of the combustion device based on the target supply pressure. Since the valve opening is associated with the combustion power of the combustion device, the combustion device can determine the initial opening of the valve of the combustion device based on the initial combustion power upper limit.

[0110] In some embodiments of the present invention, obtaining the initial combustion power upper limit of the combustion device based on the target supply pressure includes:

[0111] Acquire a first relationship between a fuel inlet pressure of the combustion device and a combustion power of the combustion device under the target supply pressure;

[0112] Based on the first relationship, the combustion power corresponding to the first fuel admission pressure upper limit is determined, and the combustion power corresponding to the first fuel admission pressure upper limit is used as the initial combustion power upper limit.

[0113] In the embodiment of the present invention, under the effect of the target supply pressure, there is a first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device.

[0114] Reference Figure 3 , which shows a schematic diagram of the relationship between the valve opening and closing degree of a combustion device provided in an embodiment of the present invention and the fuel inlet pressure of the combustion device. Figure 4 , showing a schematic diagram of the relationship between the valve opening and closing degree of a combustion device provided in an embodiment of the present invention and the combustion power of the combustion device. Figure 3 A schematic diagram of the relationship between the valve opening and closing degree of the combustion equipment and the fuel inlet pressure of the combustion equipment under the action of a target supply pressure of 2 kPa is provided. Figure 3 A schematic diagram of the relationship between the valve opening and closing degree of the combustion equipment and the fuel inlet pressure of the combustion equipment under the effect of the supply pressure to be treated of 1 kPa is also provided. Figure 4 A schematic diagram of the relationship between the valve opening and closing degree of the combustion equipment and the combustion power of the combustion equipment under the action of a target supply pressure of 2 kPa is provided.

[0115] Based on the relationship between the valve opening and closing degree of the combustion equipment and the fuel entering pressure of the combustion equipment under the action of the target supply pressure, and the relationship between the valve opening and closing degree of the combustion equipment and the combustion power of the combustion equipment, the combustion equipment can obtain a first relationship between the fuel entering pressure of the combustion equipment and the combustion power of the combustion equipment under the action of the target supply pressure.

[0116] In an embodiment of the present invention, it is necessary to limit the combustion power of the combustion equipment, adjust the valve opening and closing degree, ensure that the fuel obtained by the combustion equipment from the pipeline meets the preset mixing ratio requirement with the air, and the combustion power of the combustion equipment can reach the limited combustion power. Since the first supply pressure to be processed is less than the second supply pressure to be processed, the amount of fuel that the combustion equipment can obtain from the pipeline under the action of the first supply pressure to be processed is less than the amount of fuel that the combustion equipment can obtain from the pipeline under the action of the second supply pressure to be processed. Therefore, under the action of the first supply pressure to be processed, the combustion power that the combustion equipment can achieve is less than the combustion power that the combustion equipment can achieve under the action of the second supply pressure to be processed. Therefore, in an embodiment of the present invention, the combustion equipment first determines the combustion power that the combustion equipment can achieve corresponding to the first supply pressure to be processed, and then determines the combustion power that the combustion equipment can achieve corresponding to the second supply pressure to be processed.

[0117] In the embodiment of the present invention, the combustion device can obtain the first fuel inlet pressure upper limit according to the first supply pressure to be processed. Then, based on the first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device, the combustion power corresponding to the first fuel inlet pressure upper limit can be determined, and the combustion power corresponding to the first fuel inlet pressure upper limit is used as the initial combustion power upper limit.

[0118] In some embodiments of the present invention, determining the initial opening and closing degree of the valve of the combustion device based on the initial combustion power upper limit includes:

[0119] Acquire a second relationship between the combustion power of the combustion device and the opening degree of the valve under the target supply pressure;

[0120] Based on the second relationship, an initial opening / closing degree corresponding to the initial combustion power upper limit is determined.

[0121] In an embodiment of the present invention, after determining the initial combustion power upper limit, it is necessary to adjust the valve opening and closing degree to ensure that the fuel obtained by the combustion equipment from the pipeline meets the preset mixing ratio requirement with the air, and the combustion power of the combustion equipment can reach the initial combustion power upper limit.

[0122] In an embodiment of the present invention, Figure 4A schematic diagram of the relationship between the valve opening and closing degree of a combustion device and the combustion power of the combustion device under the action of a target supply pressure of 2 kpa is provided. Under the action of a target supply pressure of 2 kpa, the relationship between the valve opening and closing degree of a combustion device and the combustion power of the combustion device is a second relationship. According to the second relationship, the combustion device can determine the initial opening and closing degree corresponding to the upper limit of the initial combustion power.

[0123] Step 103, controlling the combustion device to operate according to the initial opening and closing degree, and during the operation, determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion device and the combustion efficiency average; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed;

[0124] In the embodiment of the present invention, the combustion efficiency average value includes a first combustion efficiency average value corresponding to the first supply pressure to be processed.

[0125] When the fuel supply pressure of the pipeline is the first supply pressure to be processed, the initial combustion power upper limit can be used as the combustion power upper limit of the combustion device, and the valve opening and closing degree of the combustion device is adjusted to the initial opening and closing degree, and the combustion device is controlled to operate. During the operation, the first combustion efficiency average value of the combustion device in the first preset time period is obtained. The first preset time period can be 2s (seconds).

[0126] In a specific example, under the action of the first to-be-processed supply pressure of 1 kpa, the combustion power upper limit of the combustion device is the initial combustion power upper limit, and the valve opening and closing degree of the combustion device is the initial opening and closing degree, the change curve of the combustion efficiency during the ignition process of the combustion device is collected, and it can be seen from the curve that the combustion efficiency changes after t seconds of ignition. The first combustion efficiency mean can be calculated using the combustion efficiency of t seconds and t+2 seconds.

[0127] In an embodiment of the present invention, the combustion device can control the combustion device to operate according to the initial opening and closing degree and the combustion power upper limit being the initial combustion power upper limit, and during the operation, the combustion device can determine the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion device and the first combustion efficiency average. The current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed.

[0128] In some embodiments of the present invention, the combustion efficiency mean value includes a first combustion efficiency mean value corresponding to a first supply pressure to be processed of the supply pressure to be processed; and determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion equipment and the combustion efficiency mean value includes:

[0129] Obtaining the operating combustion efficiency of the combustion equipment at at least one moment;

[0130] If the operating combustion efficiency in the second preset time period is greater than the first combustion efficiency average value, determining that the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure;

[0131] If the operating combustion efficiency within the third preset time period is less than the first combustion efficiency average value, the current supply pressure of the pipeline is determined to be the first supply pressure to be processed.

[0132] In an embodiment of the present invention, the combustion efficiency mean value includes the first combustion efficiency mean value corresponding to the first supply pressure to be processed. The combustion device can control the combustion device to operate according to the initial opening and closing degree and the combustion power upper limit as the initial combustion power upper limit, and during the operation, obtain the operating combustion efficiency of the combustion device at at least one moment. If the operating combustion efficiency within the second preset time period is greater than the first combustion efficiency mean value, it is determined that the current supply pressure of the pipeline is greater than the first supply pressure to be processed. If the operating combustion efficiency within the third preset time period is less than the first combustion efficiency mean value, it is determined that the current supply pressure of the pipeline is the first supply pressure to be processed. Among them, the second preset time period can be 1 second, and the third preset time period can be 3 seconds.

[0133] Step 104: Based on the current supply pressure information of the pipeline, the opening and closing degree of the valve is controlled so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air.

[0134] In an embodiment of the present invention, the combustion device can adjust the combustion power upper limit of the combustion device based on the current supply pressure information of the pipeline, and control the opening and closing degree of the valve to be the opening and closing degree corresponding to the combustion power upper limit, so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air, and the combustion power of the combustion device can reach the combustion power upper limit.

[0135] In some embodiments of the present invention, the control of the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes:

[0136] If the current supply pressure of the pipeline is the first supply pressure to be processed, maintaining the opening and closing degree of the valve at the initial opening and closing degree;

[0137] If the current supply pressure of the pipeline is greater than the first supply pressure to be processed, determining the combustion power corresponding to a second upper limit of the fuel inlet pressure of the second supply pressure to be processed based on a first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device, and using the combustion power corresponding to the second upper limit of the fuel inlet pressure as an updated combustion power upper limit;

[0138] Based on the second relationship, an updated opening / closing degree corresponding to the updated combustion power upper limit is determined.

[0139] In an embodiment of the present invention, if the current supply pressure of the pipeline is the first supply pressure to be processed, the opening degree of the valve is maintained at the initial opening degree, the combustion power upper limit of the combustion equipment is maintained at the initial combustion power upper limit, and operation continues.

[0140] If the current supply pressure of the pipeline is greater than the first supply pressure to be processed, the combustion device needs to determine whether the current supply pressure of the pipeline is the second supply pressure to be processed or the target supply pressure. The combustion device determines the combustion power corresponding to the second fuel inlet pressure upper limit based on the first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device under the target supply pressure, and uses the combustion power corresponding to the second fuel inlet pressure upper limit as the updated combustion power upper limit. Based on the second relationship between the combustion power of the combustion device and the opening and closing degree of the valve under the target supply pressure, the updated opening and closing degree corresponding to the updated combustion power upper limit is determined.

[0141] In some embodiments of the present invention, the combustion efficiency mean value includes a second combustion efficiency mean value corresponding to the second to-be-processed supply pressure; after determining the updated opening / closing degree corresponding to the updated combustion power upper limit based on the second relationship, the method includes:

[0142] Controlling the combustion device to operate according to the updated opening and closing degree, and obtaining the updated operating combustion efficiency of the combustion device at at least one moment in the process of operating according to the updated opening and closing degree;

[0143] If the updated operating combustion efficiency within a fourth preset time period is greater than the second combustion efficiency average, determining the current supply pressure of the pipeline as the target supply pressure;

[0144] If the updated operating combustion efficiency within the fifth preset time period is less than the second combustion efficiency average value, the current supply pressure of the pipeline is determined to be the second to-be-processed supply pressure.

[0145] In the embodiment of the present invention, the combustion efficiency mean value includes a second combustion efficiency mean value corresponding to the second supply pressure to be processed.

[0146] When the fuel supply pressure of the pipeline is the second supply pressure to be processed, the updated combustion power upper limit can be used as the combustion power upper limit of the combustion device, and the valve opening and closing degree of the combustion device is adjusted to the updated opening and closing degree to control the combustion device to operate. During the operation, the second combustion efficiency average value of the combustion device in the first preset time period is obtained. The first preset time period can be 6s (seconds).

[0147] In a specific example, under the effect of the second to-be-processed supply pressure of 1.5 kpa, the combustion power upper limit of the combustion device is the updated combustion power upper limit, and the valve opening and closing degree of the combustion device is the updated opening and closing degree, the change curve of the combustion efficiency during the ignition process of the combustion device is collected, and it can be seen from the curve that the combustion efficiency changes after t seconds of ignition. The second combustion efficiency mean can be calculated using the combustion efficiency of t seconds and t+6 seconds.

[0148] The combustion device can control the combustion device to operate according to the updated opening and closing degree and the combustion power upper limit as the updated combustion power upper limit, and in the process of operating according to the updated opening and closing degree, obtain the updated operation combustion efficiency of the combustion device at at least one moment. If the updated operation combustion efficiency in the fourth preset time period is greater than the second combustion efficiency average, the current supply pressure of the pipeline is determined to be the target supply pressure. If the updated operation combustion efficiency in the fifth preset time period is less than the second combustion efficiency average, the current supply pressure of the pipeline is determined to be the second supply pressure to be processed. Among them, the fourth preset time period can be 1 second, and the fifth preset time period can be 3 seconds.

[0149] In some embodiments of the present invention, the control of the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes:

[0150] If the current supply pressure of the pipeline is the second supply pressure to be processed, maintaining the opening and closing degree of the valve at the updated opening and closing degree;

[0151] If the current supply pressure of the pipeline is the target supply pressure, the combustion power corresponding to the target fuel entry pressure is determined based on the first relationship, and the combustion power corresponding to the target fuel entry pressure is used as the target combustion power.

[0152] In an embodiment of the present invention, if the current supply pressure of the pipeline is the second supply pressure to be processed, the opening and closing degree of the valve is maintained at the updated opening and closing degree, the combustion power upper limit of the combustion equipment is the updated combustion power upper limit, and operation continues.

[0153] If the current supply pressure of the pipeline is the target supply pressure, the combustion power corresponding to the target fuel entering pressure is determined based on the first relationship between the fuel entering pressure of the combustion equipment and the combustion power of the combustion equipment under the action of the target supply pressure, and the combustion power corresponding to the target fuel entering pressure is used as the target combustion power.

[0154] In some embodiments of the present invention, the control of the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes:

[0155] Based on the second relationship, determining a target opening / closing degree corresponding to the target combustion power;

[0156] The opening and closing degree of the valve is adjusted to the target opening and closing degree.

[0157] In an embodiment of the present invention, the combustion device can determine the target opening degree corresponding to the target combustion power based on the second relationship between the combustion power of the combustion device and the opening degree of the valve under the target supply pressure. The combustion device can adjust the opening degree of the valve to the target opening degree and continue to operate.

[0158] In an embodiment of the present invention, the combustion device is used to mix and burn a preset fuel and air, and the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device. The combustion device obtains a target supply pressure of the pipeline and at least one supply pressure to be processed, and obtains the average value of the combustion efficiency of the combustion device within a first preset time period under the effect of the supply pressure to be processed. Based on the target supply pressure, the combustion device obtains the initial combustion power upper limit of the combustion device, and determines the initial opening and closing degree of the valve of the combustion device based on the initial combustion power upper limit. The combustion device controls the combustion device to operate according to the initial opening and closing degree, and during the operation, determines the current supply pressure information of the pipeline based on the operating combustion efficiency and the average value of the combustion efficiency of the combustion device; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed. Based on the current supply pressure information of the pipeline, the combustion device controls the opening and closing degree of the valve so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air. In an embodiment of the present invention, the current supply pressure information of the pipeline is determined based on the operating combustion efficiency and the average combustion efficiency of the combustion equipment, and based on the current supply pressure information of the pipeline, the combustion equipment controls the opening and closing degree of the valve so that the fuel entering the combustion equipment through the valve meets the preset mixing ratio requirement with the air, thereby avoiding the situation where the combustion equipment is unable to obtain sufficient fuel and air for mixed combustion from the pipeline when the current supply pressure of the pipeline is reduced from the target supply pressure to the supply pressure to be processed, and the combustion power of the combustion equipment is unable to reach the target combustion power corresponding to the target supply pressure.

[0159] In the embodiment of the present invention, during the operation of the combustion device, the operating combustion efficiency is calculated in real time, and the current supply pressure of the pipeline is determined according to the operating combustion efficiency. Under different current supply pressures, different combustion power upper limits and valve openings are set for the combustion device to avoid the situation where the combustion device obtains less fuel from the pipeline due to low current supply pressure, and the wind blows the fire away from the flame and the flame is extinguished.

[0160] Reference Figure 5 , shows a flow chart of steps of another valve control method for combustion equipment provided in an embodiment of the present invention, which may specifically include the following steps:

[0161] Step 501, start.

[0162] Step 502: The power upper limit is limited to P1, and the judgment is made after t+2s.

[0163] When the fuel supply pressure of the pipeline is the first supply pressure to be processed, the initial combustion power upper limit P1 can be used as the combustion power upper limit of the combustion device, and the valve opening and closing degree of the combustion device is adjusted to the initial opening and closing degree to control the combustion device to operate. During the operation, the combustion efficiency changes after ignition for t seconds, and the first combustion efficiency average F1 can be calculated using the combustion efficiency of t seconds and t+2 seconds.

[0164] Step 503, determine whether n is greater than F1. If n is greater than F1, proceed to step 504; if n is not greater than F1, proceed to step 507.

[0165] The combustion device can control the combustion device to operate according to the initial opening and closing degree and the combustion power upper limit being the initial combustion power upper limit P1, and during the operation, obtain the operating combustion efficiency n of the combustion device at at least one moment. If the operating combustion efficiency n in the second preset time period is greater than the first combustion efficiency average F1, it is determined that the current supply pressure of the pipeline is greater than the first supply pressure to be processed.

[0166] If the operating combustion efficiency n within the third preset time period is not greater than the first combustion efficiency average value, the current supply pressure of the pipeline is determined to be the first supply pressure to be processed.

[0167] Step 504: the power upper limit is relaxed to P2, and a determination is made after t+6s.

[0168] When the fuel supply pressure of the pipeline is the second supply pressure to be processed, the updated combustion power upper limit P2 can be used as the combustion power upper limit of the combustion device, and the valve opening and closing degree of the combustion device is adjusted to the updated opening and closing degree to control the combustion device to operate. During the operation, the combustion efficiency changes after ignition for t seconds, and the second combustion efficiency average F2 can be calculated using the combustion efficiency of t seconds and t+6 seconds.

[0169] Step 505, determine whether n is greater than F2. If n is greater than F2, proceed to step 506; if n is not greater than F2, proceed to step 507.

[0170] The combustion device can control the combustion device to operate according to the updated opening and closing degree and the combustion power upper limit is the updated combustion power upper limit P2, and in the process of operating according to the updated opening and closing degree, obtain the updated operation combustion efficiency n of the combustion device at at least one moment. If the updated operation combustion efficiency n in the fourth preset time period is greater than the second combustion efficiency average F2, the current supply pressure of the pipeline is determined to be the target supply pressure. If the updated operation combustion efficiency n in the fifth preset time period is less than the second combustion efficiency average F2, the current supply pressure of the pipeline is determined to be the second supply pressure to be processed.

[0171] Step 506: relax the power upper limit to the maximum.

[0172] If the current supply pressure of the pipeline is the target supply pressure, the combustion power corresponding to the target fuel inlet pressure is determined based on the first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device under the target supply pressure, and the combustion power corresponding to the target fuel inlet pressure is used as the target combustion power. The opening and closing degree of the valve is adjusted to the target opening and closing degree corresponding to the target combustion power, and the operation continues.

[0173] Step 507, locking combustion according to the current upper power limit.

[0174] If the current supply pressure of the pipeline is the first supply pressure to be processed, the opening and closing degree of the valve is maintained at the initial opening and closing degree, the combustion power upper limit of the combustion equipment is maintained at the initial combustion power upper limit, and the operation continues.

[0175] If the current supply pressure of the pipeline is the second supply pressure to be processed, the opening and closing degree of the valve is maintained at the updated opening and closing degree, the combustion power upper limit of the combustion equipment is maintained at the updated combustion power upper limit, and the operation continues.

[0176] Step 508, end.

[0177] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0178] Reference Figure 6, shows a structural block diagram of a valve control device for a combustion device provided in an embodiment of the present invention, which is applied to a combustion device, wherein the combustion device is used to mix and burn a preset fuel and air, and the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, and specifically may include the following modules:

[0179] The pressure acquisition module 601 is used to acquire the target supply pressure of the pipeline and at least one supply pressure to be processed, and acquire the average value of the combustion efficiency of the combustion equipment within a first preset time period under the effect of the supply pressure to be processed;

[0180] An initial combustion power upper limit acquisition module 602 is used to acquire an initial combustion power upper limit of the combustion device based on the target supply pressure, and determine an initial opening degree of a valve of the combustion device based on the initial combustion power upper limit;

[0181] The operation control module 603 is used to control the combustion device to operate according to the initial opening and closing degree, and during the operation, determine the current supply pressure information of the pipeline based on the operation combustion efficiency of the combustion device and the combustion efficiency mean; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed;

[0182] The opening and closing degree control module 604 is used to control the opening and closing degree of the valve based on the current supply pressure information of the pipeline, so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air.

[0183] In an optional embodiment of the present invention, the supply pressure to be processed includes a first supply pressure to be processed and a second supply pressure to be processed; the target supply pressure is greater than the second supply pressure to be processed, and the second supply pressure to be processed is greater than the first supply pressure to be processed;

[0184] Under the action of the first pending supply pressure, the combustion device has a first fuel inlet pressure upper limit; under the action of the second pending supply pressure, the combustion device has a second fuel inlet pressure upper limit; under the action of the target supply pressure, the fuel inlet pressure of the combustion device includes the first fuel inlet pressure upper limit, the second fuel inlet pressure upper limit and a preset target fuel inlet pressure; the target fuel inlet pressure is greater than the second fuel inlet pressure upper limit, and the second fuel inlet pressure upper limit is greater than the first fuel inlet pressure upper limit.

[0185] In an optional embodiment of the present invention, the initial combustion power upper limit acquisition module includes:

[0186] A first relationship acquisition submodule, used for acquiring a first relationship between a fuel inlet pressure of the combustion device and a combustion power of the combustion device under the target supply pressure;

[0187] The initial combustion power upper limit acquisition submodule is used to determine the combustion power corresponding to the first fuel entry pressure upper limit based on the first relationship, and use the combustion power corresponding to the first fuel entry pressure upper limit as the initial combustion power upper limit.

[0188] In an optional embodiment of the present invention, the initial combustion power upper limit acquisition module includes:

[0189] A second relationship acquisition submodule, used to acquire a second relationship between the combustion power of the combustion device and the opening degree of the valve under the target supply pressure;

[0190] The initial opening / closing degree determining submodule is used to determine the initial opening / closing degree corresponding to the initial combustion power upper limit based on the second relationship.

[0191] In an optional embodiment of the present invention, the combustion efficiency mean value includes a first combustion efficiency mean value corresponding to a first supply pressure to be processed of the supply pressure to be processed; and the operation control module includes:

[0192] An operating combustion efficiency acquisition submodule, used to acquire the operating combustion efficiency of the combustion equipment at at least one moment;

[0193] a first current supply pressure determination submodule, configured to determine that the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure if the operating combustion efficiency within a second preset time period is greater than the first combustion efficiency average value;

[0194] The second current supply pressure determination submodule is used to determine the current supply pressure of the pipeline as the first to-be-processed supply pressure if the operating combustion efficiency within a third preset time period is less than the first combustion efficiency average value.

[0195] In an optional embodiment of the present invention, the opening and closing degree control module includes:

[0196] a first maintaining submodule, configured to maintain the opening and closing degree of the valve at the initial opening and closing degree if the current supply pressure of the pipeline is the first supply pressure to be processed;

[0197] The updating combustion power upper limit is used as a submodule for determining the combustion power corresponding to the second upper limit of the fuel inlet pressure of the second to-be-processed supply pressure of the to-be-processed supply pressure based on the first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device if the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure, and using the combustion power corresponding to the second upper limit of the fuel inlet pressure as the updated combustion power upper limit;

[0198] The updated opening / closing degree determining submodule is used to determine the updated opening / closing degree corresponding to the updated combustion power upper limit based on the second relationship.

[0199] In an optional embodiment of the present invention, the combustion efficiency mean value includes a second combustion efficiency mean value corresponding to the second supply pressure to be processed; and the opening and closing degree control module includes:

[0200] An operation control submodule, used to control the combustion device to operate according to the updated opening and closing degree, and in the process of operating according to the updated opening and closing degree, obtain the updated operation combustion efficiency of the combustion device at at least one moment;

[0201] a third current supply pressure determination submodule, configured to determine the current supply pressure of the pipeline as the target supply pressure if the updated operating combustion efficiency within a fourth preset time period is greater than the second combustion efficiency average;

[0202] The fourth current supply pressure determination submodule is configured to determine the current supply pressure of the pipeline as the second to-be-processed supply pressure if the updated operating combustion efficiency within a fifth preset time period is less than the second combustion efficiency average.

[0203] In an optional embodiment of the present invention, the opening and closing degree control module includes:

[0204] a second maintaining submodule, configured to maintain the opening and closing degree of the valve at the updated opening and closing degree if the current supply pressure of the pipeline is the second supply pressure to be processed;

[0205] The target combustion power is used as a submodule to determine the combustion power corresponding to the target fuel entry pressure based on the first relationship if the current supply pressure of the pipeline is the target supply pressure, and use the combustion power corresponding to the target fuel entry pressure as the target combustion power.

[0206] In an optional embodiment of the present invention, the opening and closing degree control module includes:

[0207] a target opening / closing degree determining submodule, configured to determine a target opening / closing degree corresponding to the target combustion power based on the second relationship;

[0208] The adjustment submodule is used to adjust the opening and closing degree of the valve to the target opening and closing degree.

[0209] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0210] In addition, an embodiment of the present invention also provides a combustion device for mixing and burning preset fuel and air, wherein the fuel enters the combustion device through a preset pipeline and a valve of the combustion device, so that the combustion device executes a valve control method for a combustion device described in the above embodiment.

[0211] In addition, an embodiment of the present invention further provides an electronic device, such as Figure 7 As shown, it includes a processor 701, a communication interface 702, a memory 703 and a communication bus 704, wherein the processor 701, the communication interface 702, and the memory 703 communicate with each other through the communication bus 704.

[0212] Memory 703, used for storing computer programs;

[0213] The processor 701 is used to execute the program stored in the memory 703 to implement the following steps:

[0214] Obtaining a target supply pressure of the pipeline and at least one supply pressure to be processed, and obtaining an average value of the combustion efficiency of the combustion equipment within a first preset time period under the supply pressure to be processed;

[0215] Based on the target supply pressure, obtaining an initial combustion power upper limit of the combustion device, and based on the initial combustion power upper limit, determining an initial opening degree of a valve of the combustion device;

[0216] Controlling the combustion device to operate according to the initial opening and closing degree, and during the operation, determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion device and the combustion efficiency average; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed;

[0217] Based on the current supply pressure information of the pipeline, the opening and closing degree of the valve is controlled so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air.

[0218] In an optional embodiment of the present invention, the supply pressure to be processed includes a first supply pressure to be processed and a second supply pressure to be processed; the target supply pressure is greater than the second supply pressure to be processed, and the second supply pressure to be processed is greater than the first supply pressure to be processed;

[0219] Under the action of the first pending supply pressure, the combustion device has a first fuel inlet pressure upper limit; under the action of the second pending supply pressure, the combustion device has a second fuel inlet pressure upper limit; under the action of the target supply pressure, the fuel inlet pressure of the combustion device includes the first fuel inlet pressure upper limit, the second fuel inlet pressure upper limit and a preset target fuel inlet pressure; the target fuel inlet pressure is greater than the second fuel inlet pressure upper limit, and the second fuel inlet pressure upper limit is greater than the first fuel inlet pressure upper limit.

[0220] In an optional embodiment of the present invention, obtaining the initial combustion power upper limit of the combustion device based on the target supply pressure includes:

[0221] Acquire a first relationship between a fuel inlet pressure of the combustion device and a combustion power of the combustion device under the target supply pressure;

[0222] Based on the first relationship, the combustion power corresponding to the first fuel admission pressure upper limit is determined, and the combustion power corresponding to the first fuel admission pressure upper limit is used as the initial combustion power upper limit.

[0223] In an optional embodiment of the present invention, determining the initial opening and closing degree of the valve of the combustion device based on the initial combustion power upper limit includes:

[0224] Acquire a second relationship between the combustion power of the combustion device and the opening degree of the valve under the target supply pressure;

[0225] Based on the second relationship, an initial opening / closing degree corresponding to the initial combustion power upper limit is determined.

[0226] In an optional embodiment of the present invention, the combustion efficiency mean value includes a first combustion efficiency mean value corresponding to a first supply pressure to be processed of the supply pressure to be processed; and determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion equipment and the combustion efficiency mean value includes:

[0227] Obtaining the operating combustion efficiency of the combustion equipment at at least one moment;

[0228] If the operating combustion efficiency in the second preset time period is greater than the first combustion efficiency average value, determining that the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure;

[0229] If the operating combustion efficiency within the third preset time period is less than the first combustion efficiency average value, the current supply pressure of the pipeline is determined to be the first supply pressure to be processed.

[0230] In an optional embodiment of the present invention, the control of the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes:

[0231] If the current supply pressure of the pipeline is the first supply pressure to be processed, maintaining the opening and closing degree of the valve at the initial opening and closing degree;

[0232] If the current supply pressure of the pipeline is greater than the first supply pressure to be processed, determining the combustion power corresponding to a second upper limit of the fuel inlet pressure of the second supply pressure to be processed based on a first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device, and using the combustion power corresponding to the second upper limit of the fuel inlet pressure as an updated combustion power upper limit;

[0233] Based on the second relationship, an updated opening / closing degree corresponding to the updated combustion power upper limit is determined.

[0234] In an optional embodiment of the present invention, the combustion efficiency mean value includes a second combustion efficiency mean value corresponding to the second to-be-processed supply pressure; after determining the updated opening / closing degree corresponding to the updated combustion power upper limit based on the second relationship, the method includes:

[0235] Controlling the combustion device to operate according to the updated opening and closing degree, and obtaining the updated operating combustion efficiency of the combustion device at at least one moment in the process of operating according to the updated opening and closing degree;

[0236] If the updated operating combustion efficiency within a fourth preset time period is greater than the second combustion efficiency average, determining the current supply pressure of the pipeline as the target supply pressure;

[0237] If the updated operating combustion efficiency within the fifth preset time period is less than the second combustion efficiency average value, the current supply pressure of the pipeline is determined to be the second to-be-processed supply pressure.

[0238] In an optional embodiment of the present invention, the control of the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes:

[0239] If the current supply pressure of the pipeline is the second supply pressure to be processed, maintaining the opening and closing degree of the valve at the updated opening and closing degree;

[0240] If the current supply pressure of the pipeline is the target supply pressure, the combustion power corresponding to the target fuel entry pressure is determined based on the first relationship, and the combustion power corresponding to the target fuel entry pressure is used as the target combustion power.

[0241] In an optional embodiment of the present invention, the control of the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes:

[0242] Based on the second relationship, determining a target opening / closing degree corresponding to the target combustion power;

[0243] The opening and closing degree of the valve is adjusted to the target opening and closing degree.

[0244] The communication bus mentioned in the above terminal can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0245] The communication interface is used for communication between the above terminal and other devices.

[0246] The memory may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0247] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0248] like Figure 8 As shown, in another embodiment provided by the present invention, a computer-readable storage medium 801 is also provided, in which instructions are stored. When the computer-readable storage medium is run on a computer, the computer executes a valve control method for a combustion device described in the above embodiment.

[0249] In another embodiment of the present invention, a computer program product including instructions is provided. When the computer program product is run on a computer, the computer executes the valve control method for a combustion device described in the above embodiment.

[0250] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk Solid State Disk (SSD)), etc.

[0251] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0252] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0253] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A valve control method for a combustion device, characterized in that: Applied to a combustion device, the combustion device is used to mix and burn a preset fuel and air, the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, and the method includes: Obtaining a target supply pressure of the pipeline and at least one supply pressure to be processed, and obtaining an average value of the combustion efficiency of the combustion equipment within a first preset time period under the supply pressure to be processed; Based on the target supply pressure, obtaining an initial combustion power upper limit of the combustion device, and based on the initial combustion power upper limit, determining an initial opening degree of a valve of the combustion device; Controlling the combustion device to operate according to the initial opening and closing degree, and during the operation, determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion device and the combustion efficiency average; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed; Based on the current supply pressure information of the pipeline, the opening and closing degree of the valve is controlled so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air.

2. The method according to claim 1, characterized in that The supply pressure to be processed includes a first supply pressure to be processed and a second supply pressure to be processed; the target supply pressure is greater than the second supply pressure to be processed, and the second supply pressure to be processed is greater than the first supply pressure to be processed; Under the action of the first to-be-processed supply pressure, the combustion device has a first upper limit of fuel inlet pressure; Under the effect of the second to-be-processed supply pressure, the combustion device has a second upper limit of fuel inlet pressure; Under the target supply pressure, the fuel inlet pressure of the combustion device includes the first fuel inlet pressure upper limit, the second fuel inlet pressure upper limit and a preset target fuel inlet pressure; The target fuel admission pressure is greater than the second fuel admission pressure upper limit, and the second fuel admission pressure upper limit is greater than the first fuel admission pressure upper limit.

3. The method according to claim 2, characterized in that The obtaining, based on the target supply pressure, an upper limit of the initial combustion power of the combustion device comprises: Acquire a first relationship between a fuel inlet pressure of the combustion device and a combustion power of the combustion device under the target supply pressure; Based on the first relationship, the combustion power corresponding to the first fuel admission pressure upper limit is determined, and the combustion power corresponding to the first fuel admission pressure upper limit is used as the initial combustion power upper limit.

4. The method according to claim 1, characterized in that: The determining the initial opening and closing degree of the valve of the combustion device based on the initial combustion power upper limit includes: Acquire a second relationship between the combustion power of the combustion device and the opening degree of the valve under the target supply pressure; Based on the second relationship, an initial opening / closing degree corresponding to the initial combustion power upper limit is determined.

5. The method according to claim 4, characterized in that The combustion efficiency mean value includes a first combustion efficiency mean value corresponding to a first supply pressure to be processed of the supply pressure to be processed; and determining the current supply pressure information of the pipeline based on the operating combustion efficiency of the combustion equipment and the combustion efficiency mean value includes: Obtaining the operating combustion efficiency of the combustion equipment at at least one moment; If the operating combustion efficiency in the second preset time period is greater than the first combustion efficiency average value, determining that the current supply pressure of the pipeline is greater than the first to-be-processed supply pressure; If the operating combustion efficiency within the third preset time period is less than the first combustion efficiency average value, the current supply pressure of the pipeline is determined to be the first supply pressure to be processed.

6. The method according to claim 5, characterized in that The step of controlling the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes: If the current supply pressure of the pipeline is the first supply pressure to be processed, maintaining the opening and closing degree of the valve at the initial opening and closing degree; If the current supply pressure of the pipeline is greater than the first supply pressure to be processed, determining the combustion power corresponding to a second upper limit of the fuel inlet pressure of the second supply pressure to be processed based on a first relationship between the fuel inlet pressure of the combustion device and the combustion power of the combustion device, and using the combustion power corresponding to the second upper limit of the fuel inlet pressure as an updated combustion power upper limit; Based on the second relationship, an updated opening / closing degree corresponding to the updated combustion power upper limit is determined.

7. The method according to claim 6, characterized in that The combustion efficiency mean value includes a second combustion efficiency mean value corresponding to the second to-be-processed supply pressure; after determining the updated opening / closing degree corresponding to the updated combustion power upper limit based on the second relationship, the method includes: Controlling the combustion device to operate according to the updated opening and closing degree, and obtaining the updated operating combustion efficiency of the combustion device at at least one moment in the process of operating according to the updated opening and closing degree; If the updated operating combustion efficiency within a fourth preset time period is greater than the second combustion efficiency average, determining the current supply pressure of the pipeline as the target supply pressure; If the updated operating combustion efficiency within the fifth preset time period is less than the second combustion efficiency average value, the current supply pressure of the pipeline is determined to be the second to-be-processed supply pressure.

8. The method according to claim 7, characterized in that The step of controlling the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes: If the current supply pressure of the pipeline is the second supply pressure to be processed, maintaining the opening and closing degree of the valve at the updated opening and closing degree; If the current supply pressure of the pipeline is the target supply pressure, the combustion power corresponding to the target fuel entry pressure is determined based on the first relationship, and the combustion power corresponding to the target fuel entry pressure is used as the target combustion power.

9. The method according to claim 8, characterized in that The step of controlling the opening and closing degree of the valve based on the current supply pressure information of the pipeline so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air includes: Based on the second relationship, determining a target opening / closing degree corresponding to the target combustion power; The opening and closing degree of the valve is adjusted to the target opening and closing degree.

10. A valve control device for a combustion device, characterized in that: Applied to a combustion device, the combustion device is used to mix and burn a preset fuel and air, the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, and the device includes: A pressure acquisition module, used to acquire a target supply pressure of the pipeline and at least one supply pressure to be processed, and to acquire a combustion efficiency average of the combustion equipment within a first preset time period under the supply pressure to be processed; an initial combustion power upper limit acquisition module, used to acquire the initial combustion power upper limit of the combustion device based on the target supply pressure, and determine the initial opening degree of the valve of the combustion device based on the initial combustion power upper limit; an operation control module, used for controlling the combustion device to operate according to the initial opening and closing degree, and during the operation, determining the current supply pressure information of the pipeline based on the operation combustion efficiency of the combustion device and the combustion efficiency mean; the current supply pressure information is used to indicate that the current supply pressure of the pipeline is the target supply pressure or the supply pressure to be processed; The opening and closing degree control module is used to control the opening and closing degree of the valve based on the current supply pressure information of the pipeline, so that the fuel entering the combustion device through the valve meets the preset mixing ratio requirement with the air.

11. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; The memory is used to store computer programs; The processor is used to implement the method according to any one of claims 1 to 9 when executing the program stored in the memory.

12. One or more computer-readable media having instructions stored thereon, which when executed by one or more processors cause the processors to perform the method according to any one of claims 1 to 9.

13. A combustion device, characterized in that: Used to mix and burn a preset fuel and air, the fuel is used to enter the combustion device through a preset pipeline and a valve of the combustion device, so that the combustion device executes the method according to any one of claims 1-9.

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