Hydrogen-doped fuel gas temperature control method and device, electronic equipment and storage medium

Abstract

The disclosure provides a hydrogen-doped fuel gas temperature control method and device, electronic equipment and storage medium. The method comprises the following steps: detecting a hydrogen volume ratio value of hydrogen fuel in hydrogen-doped fuel gas output from a hydrogen-doped fuel gas mixing pipeline outlet of a hydrogen-doped fuel engine system; determining a corresponding Weibull index design value of the hydrogen-doped fuel engine system; obtaining a first design heat value of hydrogen fuel in hydrogen-doped fuel gas, a second design heat value of natural gas fuel in hydrogen-doped fuel gas and a reference temperature value of hydrogen-doped fuel gas when the hydrogen-doped fuel gas is in a highest hydrogen-doping ratio state; and determining a temperature design value of hydrogen-doped fuel gas according to the hydrogen volume ratio value, the Weibull index design value, the first design heat value, the second design heat value and the reference temperature value. Through the disclosure, the temperature design value of hydrogen-doped fuel gas can be accurately set according to the hydrogen volume ratio in hydrogen-doped mixed fuel gas, the Weibull index of mixed fuel gas is ensured to be within the allowable range of Weibull index variation, and sufficient combustion of hydrogen-doped fuel gas is ensured.

Description

Technical Field

[0001] This disclosure relates to the field of fuel gas temperature control technology, and in particular to a method, apparatus, electronic device and storage medium for temperature control of hydrogen-blended fuel gas. Background Technology

[0002] Currently, hydrogen-blended gas turbines are units that have been modified to use natural gas as the primary fuel. After the gas turbine is connected to the grid, the hydrogen fuel is gradually increased to a set proportion at a certain rate. With the addition of hydrogen fuel, the properties of the blended fuel change, and the temperature value of the blended fuel needs to be adaptively set to ensure that the Weber index of the blended fuel is within the allowable range of Weber index variation.

[0003] In related technologies, a fixed temperature value is typically used as the set value for a single gaseous fuel.

[0004] In this approach, for hydrogen-blended gas turbines, after adding hydrogen fuel to natural gas, the calorific value of the blended fuel decreases as the proportion of hydrogen fuel increases. Using a single fuel temperature setting method can easily cause the Weber index of the blended fuel to deviate from the allowable range of Weber index variation, resulting in incomplete or excessive combustion of the blended fuel. Summary of the Invention

[0005] This disclosure aims to at least partially address one of the technical problems in the related art.

[0006] Therefore, the purpose of this disclosure is to provide a method, apparatus, electronic device, storage medium, and computer program product for temperature control of hydrogen-blended fuel gas.

[0007] The first aspect of this disclosure provides a temperature control method for hydrogen-blended fuel gas, applied to a hydrogen-blended gas turbine system. The method includes: detecting the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system; determining the Weber index design value corresponding to the hydrogen-blended gas turbine system; obtaining a first design calorific value of the hydrogen fuel in the hydrogen-blended fuel gas, a second design calorific value of the natural gas fuel in the hydrogen-blended fuel gas, and a reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the highest hydrogen blending ratio state; and determining the design temperature value of the hydrogen-blended fuel gas based on the hydrogen volume ratio value, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value.

[0008] A second aspect of this disclosure provides a temperature control device for hydrogen-blended fuel gas, applied in a hydrogen-blended gas turbine system. The device includes: a detection module for detecting the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system; a first determination module for determining the Weber index design value corresponding to the hydrogen-blended gas turbine system; a first acquisition module for acquiring the first design calorific value of the hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of the natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the highest hydrogen blending ratio state; and a second determination module for determining the design temperature value of the hydrogen-blended fuel gas based on the hydrogen volume ratio value, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value.

[0009] A third aspect of this disclosure provides an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements a temperature control method for hydrogen-blended fuel gas as proposed in a first aspect of this disclosure.

[0010] The fourth aspect of this disclosure provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the temperature control method for hydrogen-blended fuel gas as proposed in the first aspect of this disclosure.

[0011] The fifth aspect of this disclosure provides a computer program product that, when executed by a processor, performs a temperature control method for hydrogen-blended fuel gas as described in the first aspect of this disclosure.

[0012] The temperature control method, apparatus, electronic device, storage medium, and computer program product for hydrogen-blended fuel gas disclosed herein have at least the following beneficial effects: By detecting the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system, the Weber index design value corresponding to the hydrogen-blended gas turbine system is determined; the first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas are obtained when the hydrogen-blended fuel gas is in the state of maximum hydrogen blending ratio; and the temperature design value of the hydrogen-blended fuel gas is determined based on the hydrogen volume ratio, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value. This allows for accurate setting of the temperature design value of the hydrogen-blended fuel gas based on the hydrogen volume ratio in the hydrogen-blended fuel gas mixture, ensuring that the Weber index of the mixture is within the allowable range of Weber index variation, and ensuring complete combustion of the hydrogen-blended fuel gas.

[0013] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0014] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0015] Figure 1 This is a schematic flowchart of a method for controlling the temperature of hydrogen-blended fuel gas according to an embodiment of this disclosure; Figure 2 This is a schematic flowchart of a method for controlling the temperature of hydrogen-blended fuel gas according to another embodiment of this disclosure; Figure 3 This is a graph showing the variation of the temperature design value of the hydrogen-blended fuel gas in the embodiments of this disclosure; Figure 4 This is a schematic flowchart of a method for controlling the temperature of hydrogen-blended fuel gas according to another embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of the hydrogen-blended gas turbine system in the embodiments of this disclosure; Figure 6 This is a schematic diagram of the hydrogen-blended fuel gas temperature control system proposed in the embodiments of this disclosure; Figure 7 This is a schematic diagram of the structure of a temperature control device for hydrogen-blended fuel gas according to an embodiment of this disclosure; Figure 8 This is a schematic diagram of the structure of a temperature control device for hydrogen-blended fuel gas according to another embodiment of this disclosure; Figure 9 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present disclosure is shown. Detailed Implementation

[0016] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0017] Figure 1 This is a schematic flowchart of a method for controlling the temperature of hydrogen-blended fuel gas according to an embodiment of this disclosure.

[0018] It should be noted that the subject of the temperature control method for hydrogen-blended fuel gas in this embodiment is a temperature control device for hydrogen-blended fuel gas. This device can be implemented by software and / or hardware, and can be configured in electronic devices, without limitation.

[0019] like Figure 1 As shown, this method for controlling the temperature of hydrogen-blended fuel gas is applied to a hydrogen-blended gas turbine system. The method includes: S101: Detects the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system.

[0020] Among them, the hydrogen-blended gas turbine system refers to a gas turbine unit that has been modified from the original fuel of natural gas to be able to use hydrogen-blended fuel. The hydrogen-blended gas turbine system may include: a flow control device for controlling the mixing ratio of hydrogen fuel and natural gas fuel in the hydrogen-blended fuel gas, a detection device for detecting the actual mixing ratio of fuel gas, a speed ratio valve, a controller, and a heating device, etc., or may include any components required for the hydrogen-blended gas turbine system, without limitation.

[0021] Among them, hydrogen-blended fuel gas refers to blended fuel gas obtained by mixing hydrogen fuel with natural gas fuel in a certain proportion.

[0022] The hydrogen volume ratio refers to the actual volume percentage of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system.

[0023] In this embodiment, the hydrogen-blended gas turbine system includes a hydrogen fuel delivery pipeline and a natural gas fuel delivery pipeline. Each pipeline is equipped with a gas flow control valve to control the mixing of hydrogen fuel with natural gas fuel according to a set volumetric flow rate, resulting in hydrogen-blended fuel gas. This hydrogen-blended fuel gas is then output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system. A hydrogen volume ratio detection device is installed at the gas mixing pipeline outlet to detect the volume percentage of hydrogen fuel in the hydrogen-blended fuel gas, thereby obtaining the hydrogen volume ratio value.

[0024] S102: Determine the design value of the Weber index for the hydrogen-blended gas turbine system.

[0025] The Weber index is a data parameter used to represent the calorific value characteristics of fuel gas.

[0026] The Weber index design value refers to the Weber index value determined based on the combustion chamber of the hydrogen-blended gas engine system. The Weber index design value is related to the design attribute parameters of the combustion chamber of the hydrogen-blended gas engine system. Once the combustion chamber of the hydrogen-blended gas engine system is determined, the Weber index design value of the hydrogen-blended gas engine system is determined accordingly.

[0027] In this embodiment of the disclosure, when determining the Weber index design value corresponding to the hydrogen-blended gas turbine system, the upper limit and lower limit of the Weber index of the hydrogen-blended gas turbine system can be determined based on the design attribute parameters of the combustion chamber of the hydrogen-blended gas turbine system. Then, the Weber index design value calculation expression can be introduced, and the upper limit and lower limit of the Weber index can be substituted into the Weber index design value calculation expression for calculation to obtain the corresponding calculation result. The calculation result is used as the Weber index design value corresponding to the hydrogen-blended gas turbine system.

[0028] S103: Obtain the first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the state of maximum hydrogen blending ratio.

[0029] Fuel calorific value refers to the heat released when a unit volume of fuel gas is completely burned and the combustion products are cooled to the temperature before combustion (generally ambient temperature).

[0030] The first design calorific value refers to the calorific value of hydrogen fuel in the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the state of the highest hydrogen blending ratio.

[0031] The second design calorific value refers to the calorific value of natural gas fuel in hydrogen-blended fuel gas when the hydrogen-blended fuel gas is at its highest hydrogen blending ratio.

[0032] The reference temperature value refers to the temperature of the hydrogen-blended fuel gas when it is at its highest hydrogen blending ratio. This reference temperature value is a known value obtained through prior calculation.

[0033] In this embodiment, after the hydrogen-blended fuel gas in the hydrogen-blended gas turbine system is at full speed and unloaded, the pressure of the fuel gas remains at a fixed value. At the highest hydrogen blending ratio, the fuel gas at this highest hydrogen blending ratio is regarded as an ideal gas. Without considering the compression system, the relative density of hydrogen fuel and air can be regarded as a constant. When the temperature deviates, the volumetric calorific value changes. The corresponding hydrogen-blended fuel gas temperature is calculated as a reference temperature value. At the highest hydrogen blending ratio and the reference temperature value, the design value of the calorific value of hydrogen fuel in the hydrogen-blended fuel gas is obtained. This design value of the calorific value of hydrogen fuel is used as the first design calorific value. The design value of the calorific value of natural gas fuel in the hydrogen-blended fuel gas is obtained. This design value of the calorific value of natural gas fuel is used as the second design calorific value.

[0034] S104: Determine the design temperature of the hydrogen-blended fuel gas based on the hydrogen volume ratio, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value.

[0035] In this embodiment of the invention, after determining the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the aforementioned hydrogen-blended gas turbine system, the corresponding Weber index design value of the hydrogen-blended gas turbine system is determined. Furthermore, after obtaining the first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the highest hydrogen blending ratio state, the temperature design value of the hydrogen-blended fuel gas can be determined based on the hydrogen volume ratio value, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value.

[0036] In this embodiment of the disclosure, when determining the design temperature value of the hydrogen-blended fuel gas based on the hydrogen volume ratio, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value, a general calculation expression for the Weber index of the fuel gas can be introduced first. The general calculation expression for the Weber index can be defined as: ,in, The lower heating value of gaseous fuels is expressed in kJ / m³, P is the fuel pressure in kPa, and T is the fuel temperature in degrees Celsius. For gaseous fuel density, air density, The relative density of the real gas is used, and then the general expression for calculating the Weber exponent is modified and defined. When hydrogen is added, let the volume percentage of hydrogen be α. Then the expression for calculating the Weber exponent of a hydrogen-blended gas engine can be defined as: ,in, The Weber index for hydrogen-blended fuels. The low calorific value of hydrogen fuel is expressed in kJ / m³. The low calorific value of natural gas fuel is expressed in kJ / m³. The volume percentage of hydrogen fuel is between 0 and 1. The Weber exponent, as shown in the above expression, is related to temperature, pressure, and volume percentage. Then, based on the Weber exponent design value, the first design calorific value, the second design calorific value, and the reference temperature value, the Weber exponent calculation expression for the hydrogen-blended gas turbine is derived and converted to determine the function of the temperature design value and the hydrogen volume percentage. Substituting the hydrogen volume percentage into this function yields the temperature design value of the hydrogen-blended fuel gas corresponding to the hydrogen volume percentage.

[0037] In other embodiments, the interpolation table between the hydrogen volume ratio and the temperature design value can be determined according to the derivation and calculation process of the above expression. Based on the actual detected hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas, the temperature design value can be obtained by interpolation.

[0038] In this embodiment, by detecting the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system, the Weber index design value corresponding to the hydrogen-blended gas turbine system is determined. The first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas are obtained when the hydrogen-blended fuel gas is at its highest hydrogen blending ratio. Based on the hydrogen volume ratio, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value, the temperature design value of the hydrogen-blended fuel gas is determined. This allows for accurate setting of the temperature design value of the hydrogen-blended fuel gas based on the hydrogen volume ratio in the hydrogen-blended fuel gas mixture, ensuring that the Weber index of the mixture is within the allowable range of Weber index variation, and guaranteeing complete combustion of the hydrogen-blended fuel gas.

[0039] Figure 2 This is a schematic flowchart of a method for controlling the temperature of hydrogen-blended fuel gas according to another embodiment of this disclosure.

[0040] like Figure 2 As shown, this method for controlling the temperature of hydrogen-blended fuel gas is applied to a hydrogen-blended gas turbine system. The method includes: S201: Detect the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system.

[0041] For a detailed description of S201, please refer to the above embodiments, which will not be repeated here.

[0042] S202: Obtain the first and second Weber index thresholds for the hydrogen-blended gas turbine system, wherein the first Weber index threshold is used to indicate the upper limit of the Weber index of the hydrogen-blended gas turbine system, and the second Weber index threshold is used to indicate the lower limit of the Weber index of the hydrogen-blended gas turbine system.

[0043] The first Weber index threshold refers to the upper limit of the Weber index of the hydrogen-blended gas turbine system. After the design coefficient of the combustion chamber of the hydrogen-blended gas turbine system is determined, the first Weber index threshold is determined accordingly.

[0044] The second Weber index threshold refers to the lower limit of the Weber index of the hydrogen-blended gas turbine system. After the design coefficient of the combustion chamber of the hydrogen-blended gas turbine system is determined, the second Weber index threshold is determined accordingly.

[0045] In this embodiment of the disclosure, when obtaining the first and second Weber index thresholds of the hydrogen-blended gas turbine system, data parameters describing the design and manufacturing attributes of the combustion chamber in the hydrogen-blended gas turbine system can be obtained first. Based on these data parameters, the upper limit of the Weber index of the hydrogen-blended gas turbine system is determined as the first upper limit of the Weber index, and the lower limit of the Weber index of the hydrogen-blended gas turbine system is determined as the second Weber index threshold.

[0046] S203: Determine the design value of the Weber exponent based on the first Weber exponent threshold and the second Weber exponent threshold.

[0047] In this embodiment of the present disclosure, after obtaining the first and second Weber index thresholds of the hydrogen-blended gas turbine system as described above, the Weber index design value can be determined based on the first and second Weber index thresholds.

[0048] In this embodiment of the disclosure, when determining the Weber index design value based on the first Weber index threshold and the second Weber index threshold, a Weber index calculation expression for the Weber index design value with respect to the first Weber index threshold and the second Weber index threshold can be introduced. The first Weber index threshold and the second Weber index threshold are substituted into the Weber index calculation expression for calculation to obtain the calculation result, which is then used as the Weber index design value.

[0049] For example, once the combustion chamber of a hydrogen-blended gas turbine system is determined, the upper and lower limits of the Weber exponent are also determined. Therefore, the upper threshold of the Weber exponent can be set as the first Weber exponent threshold W. L Set the lower bound threshold of the Weiber exponent to the second Weiber exponent threshold W. H The upper and lower limits of the Weber index are obtained as [ Then, the expression for calculating the design value of the target Weiber exponent is: The first Weber exponent threshold W L Second Weber index threshold W H Substitute these values ​​into the Weber exponent calculation expression to obtain the designed Weber exponent value.

[0050] S204: Obtain the first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the state of maximum hydrogen blending ratio.

[0051] For a detailed description of S204, please refer to the above embodiments, which will not be repeated here.

[0052] S205: Determine the calorific value of the blended fuel gas containing hydrogen based on the hydrogen volume ratio, the first design calorific value, and the second design calorific value.

[0053] Among them, the calorific value of blended fuels refers to the data related to the calorific value of hydrogen-blended fuel gas used in the calculation of temperature design values.

[0054] In this embodiment of the disclosure, when determining the calorific value of the hydrogen-blended fuel gas mixture based on the hydrogen volume ratio, the first design calorific value, and the second design calorific value, a calorific value calculation expression can be introduced relative to the hydrogen volume ratio, the first design calorific value, and the second design calorific value. The actual detected hydrogen volume ratio, the first design calorific value of the hydrogen fuel, and the second design calorific value of the natural gas fuel are substituted into the calorific value calculation expression for calculation to obtain the calorific value of the hydrogen-blended fuel gas mixture.

[0055] Optionally, in some embodiments, when determining the calorific value of the mixed fuel of hydrogen-blended fuel gas based on the hydrogen volume ratio, the first design calorific value, and the second design calorific value, the natural gas volume ratio of the natural gas fuel in the hydrogen-blended fuel gas can be determined based on the hydrogen volume ratio, the first product result of the first design calorific value and the hydrogen volume ratio can be determined, the second product result of the second design calorific value and the natural gas volume ratio can be determined, and the first product result and the second product result are accumulated to obtain the calorific value of the mixed fuel.

[0056] The natural gas volume ratio refers to the actual volume percentage of natural gas in the hydrogen-blended fuel gas. This natural gas volume ratio can be obtained by subtracting the hydrogen volume ratio from 1.

[0057] The first product result value refers to the calorific value related to the first design calorific value and the hydrogen volume ratio value.

[0058] The second product result value refers to the calorific value related to the calorific value obtained by multiplying the second design calorific value with the natural gas volume ratio.

[0059] In this embodiment of the disclosure, when determining the calorific value of the mixed fuel of hydrogen-blended fuel gas based on the hydrogen volume ratio, the first design calorific value, and the second design calorific value, the natural gas volume ratio of the natural gas fuel in the hydrogen-blended fuel gas can be determined first based on the hydrogen volume ratio. The natural gas volume ratio of the natural gas fuel in the hydrogen-blended fuel gas can be obtained by subtracting the hydrogen volume ratio from 1. For example, let the hydrogen volume ratio be... The volume percentage of natural gas is 10%. Then, the first design calorific value can be multiplied by the hydrogen volume ratio to determine the first product result. Let the first design calorific value be expressed as... Then the value of the first product is determined to be... The second design calorific value can be multiplied by the ratio of the natural gas volume to obtain the second product result. Let the second design calorific value be expressed as... The result of the second product is . Then, the first product result and the second product result can be summed to obtain the calorific value of the mixed fuel. .

[0060] S206: Determine the reference relative density value of the hydrogen-blended fuel gas based on the first gas relative density value of hydrogen fuel, the second gas relative density value of natural gas fuel, and the hydrogen volume ratio value.

[0061] The reference relative density value refers to the data related to the relative density of the fuel gas in the hydrogen-blended fuel gas, which is used in the calculation of the temperature design value.

[0062] In this embodiment of the disclosure, when determining the reference relative density value of the hydrogen-blended fuel gas based on the first gas relative density value of hydrogen fuel, the second gas relative density value of natural gas fuel, and the hydrogen volume ratio value, a relative density calculation expression can be introduced, which is relative to the first gas relative density value, the second gas relative density value, and the hydrogen volume ratio value. The actual detected hydrogen volume ratio value, the first gas relative density value of hydrogen fuel, and the second gas relative density value of natural gas fuel are substituted into the relative density calculation expression for calculation to obtain the reference relative density value of the hydrogen-blended fuel gas.

[0063] Optionally, in some embodiments, when determining the reference relative density value of the hydrogen-blended fuel gas based on the first gas relative density value of hydrogen fuel, the second gas relative density value of natural gas fuel, and the hydrogen volume ratio value, a third product result of the first gas relative density value and the hydrogen volume ratio value can be determined, a fourth product result of the second gas relative density value and the natural gas volume ratio value can be determined, and the reference relative density value can be determined based on the third product result value and the fourth product result value.

[0064] The first gas relative density value refers to the relative density value of hydrogen fuel relative to air, and the first gas relative density value is a fixed value.

[0065] The second gas relative density value refers to the gas relative density value of natural gas fuel relative to air. The second gas relative density value is a fixed value and is related to the gas composition of natural gas fuel. Once the composition of natural gas fuel is determined, the second gas relative density value is also a fixed value.

[0066] The third product result value refers to the result value related to the relative density value of the first gas obtained by multiplying the relative density value of the first gas with the volume ratio of hydrogen.

[0067] The fourth product result value refers to the result value related to the relative density value of the second gas obtained by multiplying the relative density value of the second gas with the volume ratio of natural gas.

[0068] In this embodiment, when determining the reference relative density value of the hydrogen-blended fuel gas based on the first gas relative density value of hydrogen fuel, the second gas relative density value of natural gas fuel, and the hydrogen volume ratio value, the third product result of the first gas relative density value and the hydrogen volume ratio value can be determined, assuming the hydrogen volume ratio is... The volume percentage of natural gas is 10%. Let the relative density of the first gas be d. H Let the relative density of the second gas be d. NG The product of the hydrogen volume value and the relative density value of the first gas is then used to obtain the third product value. The fourth product result of determining the relative density value of the second gas and the volume ratio of natural gas can be obtained by multiplying the relative density value of the second gas and the volume ratio of natural gas. Then, based on the results of the third and fourth products, the reference relative density value can be determined. This can be achieved by first summing the results of the third and fourth products to obtain a cumulative value, and then taking the square root of the cumulative value to obtain the reference relative density value. .

[0069] S207: Determine the temperature design value based on the calorific value of the mixed fuel, the reference relative density value, the Weber index design value, and the reference temperature value.

[0070] In this embodiment of the present disclosure, after determining the calorific value of the mixed fuel gas based on the hydrogen volume ratio, the first design calorific value, and the second design calorific value, and after determining the reference relative density value of the mixed fuel gas based on the first gas relative density value of the hydrogen fuel, the second gas relative density value of the natural gas fuel, and the hydrogen volume ratio, the temperature design value can be determined based on the mixed fuel calorific value, the reference relative density value, the Weber index design value, and the reference temperature value.

[0071] In this embodiment of the disclosure, when determining the temperature design value based on the calorific value of the mixed fuel, the reference relative density value, the Weber index design value, and the reference temperature value, a relationship expression between the Weber index design value and the calorific value of the mixed fuel, the reference relative density value, and the reference temperature value can be established, and the Weber index design value can be expressed as WI. SP The reference temperature value is denoted as T0, and the design temperature value is denoted as T. SP The relational expression is then obtained as follows: The expression is derived to obtain the design temperature value T. SPThe calculation expression can be used to obtain the temperature design value T. SP The actual value and the expression function of the hydrogen volume ratio are used to calculate the temperature design value under the hydrogen volume ratio. The hydrogen volume ratio in the hydrogen-blended fuel gas is substituted into the expression function for calculation.

[0072] Optionally, in some embodiments, when determining the temperature design value based on the calorific value of the mixed fuel, the reference relative density value, the Weber index design value, and the reference temperature value, a first ratio result of the calorific value of the mixed fuel to the reference relative density value can be determined, a second ratio result of the Weber index design value to the first ratio result can be determined, and a third ratio result of the reference temperature value to the second ratio result can be determined, wherein the third ratio result is used as the temperature design value.

[0073] The first ratio result refers to the data result obtained by comparing the calorific value of the mixed fuel with the reference relative density value.

[0074] The second ratio result refers to the data result obtained by comparing the designed value of the Weber index with the first ratio result.

[0075] The third ratio result refers to the data result obtained by comparing the reference temperature value with the second ratio result.

[0076] In this disclosure, when determining the temperature design value based on the calorific value of the mixed fuel, the reference relative density value, the Weber index design value, and the reference temperature value, the relationship expression obtained above can be used. Further derivation and calculations were performed to determine the first ratio of the calorific value of the mixed fuel to the reference relative density value, the second ratio of the Weber index design value to the first ratio, and the third ratio of the reference temperature value to the second ratio, resulting in the derived expression. As can be seen from the formula, the design temperature value T SP It is a function of the hydrogen ratio, i.e. The volumetric calorific value of hydrogen fuel is approximately one-third that of natural gas fuel. As the volumetric proportion of hydrogen increases, the design temperature T... SP It initially shows a downward trend, and then shows an upward trend at the highest hydrogen doping ratio.

[0077] For example, such as Figure 3 As shown, Figure 3 This is a graph showing the variation of the design temperature value of the hydrogen-blended fuel gas in the embodiments of this disclosure. As the hydrogen blending ratio increases, the design temperature value initially shows a decreasing trend, and then shows an increasing trend at high hydrogen blending ratios. It should be noted that... Figure 3 This is only intended to illustrate the trend of temperature design value as the hydrogen doping ratio increases. Figure 3There are no restrictions on the actual application of the temperature design value in real-world scenarios.

[0078] In other embodiments, the hydrogen volume ratio of the hydrogen fuel can be used. Using the above expression as input, the design temperature T of the gas is calculated. SP You can also calculate the interpolation table. The temperature design value is calculated by interpolation.

[0079] In this embodiment, by detecting the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system, the Weber index design value corresponding to the hydrogen-blended gas turbine system is determined. The first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas are obtained when the hydrogen-blended fuel gas is at its highest hydrogen blending ratio. Based on the hydrogen volume ratio, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value, the temperature design value of the hydrogen-blended fuel gas is determined. This allows for accurate setting of the temperature design value of the hydrogen-blended fuel gas based on the hydrogen volume ratio in the hydrogen-blended fuel gas mixture, ensuring that the Weber index of the mixture is within the allowable range of Weber index variation, and guaranteeing complete combustion of the hydrogen-blended fuel gas.

[0080] Figure 4 This is a schematic flowchart of a method for controlling the temperature of hydrogen-blended fuel gas according to another embodiment of this disclosure.

[0081] like Figure 4 As shown, this method for controlling the temperature of hydrogen-blended fuel gas is applied to a hydrogen-blended gas turbine system. The method includes: S401: Detects the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system.

[0082] S402: Determine the design value of the Weber index for the hydrogen-blended gas turbine system.

[0083] S403: Obtain the first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the state of maximum hydrogen blending ratio.

[0084] S404: Determine the design temperature of the hydrogen-blended fuel gas based on the hydrogen volume ratio, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value.

[0085] For a detailed description of S401 to S404, please refer to the above embodiments, which will not be repeated here.

[0086] S405: Obtain the feedback temperature value of the hydrogen-blended fuel gas after passing through the speed ratio valve in the hydrogen-blended gas turbine system.

[0087] The feedback temperature value refers to the actual temperature value measured after the hydrogen-blended fuel gas passes through the speed ratio valve in the hydrogen-blended gas turbine system.

[0088] In this embodiment of the disclosure, the hydrogen-blended gas turbine system may include: a hydrogen flow control device, a natural gas flow control device, a heating device, an emergency shut-off valve, a vent valve, an auxiliary control valve, a speed ratio valve, temperature measuring points, a fuel control valve assembly, and a combustion chamber, etc. Figure 5 As shown, Figure 5 This is a schematic diagram of the structure of the hydrogen-blended gas turbine system in this embodiment. The actual temperature value measured at the temperature measuring point after the hydrogen-blended fuel gas passes through the speed ratio valve in the hydrogen-blended gas turbine system can be obtained, and the obtained actual temperature value is used as the feedback temperature value.

[0089] S406: Transmits the feedback temperature value and the temperature design value to the controller of the hydrogen-blended gas turbine system, so that the controller generates temperature control commands.

[0090] Among them, the temperature control command refers to the information command generated by the controller to control the heater so that the heater controls the temperature of the hydrogen-blended fuel gas.

[0091] In this embodiment of the present disclosure, after determining the temperature design value of the hydrogen-blended fuel gas based on the hydrogen volume ratio value, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value, and obtaining the feedback temperature value of the hydrogen-blended fuel gas after passing through the speed ratio valve in the hydrogen-blended gas turbine system, the feedback temperature value and the temperature design value can be transmitted to the controller of the hydrogen-blended gas turbine system, so that the controller generates a temperature control command.

[0092] In this embodiment of the present disclosure, the feedback temperature value and the temperature design value can be transmitted to the controller of the hydrogen-blended gas turbine system. In the controller, the temperature difference between the feedback temperature value and the temperature design value is calculated. If there is a temperature difference between the feedback temperature value and the temperature design value, the temperature difference is used to generate a corresponding temperature control command. This allows the heater that receives the temperature control command to perform corresponding temperature control and adjustment processing on the temperature of the hydrogen-blended fuel gas according to the temperature difference indicated in the temperature control command.

[0093] S407: Transmits temperature control commands to the heater of the hydrogen-blended gas turbine system so that the heater can perform temperature control processing on the hydrogen-blended fuel gas.

[0094] In this embodiment of the present disclosure, after the feedback temperature value and the temperature design value are transmitted to the controller of the hydrogen-blended gas turbine system, and the controller generates a temperature control command, the temperature control command can be transmitted to the heater of the hydrogen-blended gas turbine system so that the heater can perform temperature control processing on the hydrogen-blended fuel gas.

[0095] In this embodiment, the controller can transmit temperature control commands to the heater of the hydrogen-blended gas turbine system. The heater, based on the temperature difference between the feedback temperature value indicated by the controller and the design temperature value, heats the hydrogen-blended fuel gas or performs other temperature control treatments to ensure that the actual temperature of the hydrogen-blended fuel gas after passing through the heater meets the design temperature value. The mixed gas mixture of hydrogen and natural gas is heated by the heating device and then sent to the fuel gas module. For combined cycle units, this heater is generally a performance heater, using boiler feedwater as the heating medium. For example, ... Figure 6 As shown, Figure 6 This is a schematic diagram of the hydrogen-blended fuel gas temperature control system proposed in this embodiment. First, the design temperature value of the hydrogen-blended fuel gas is determined based on the hydrogen volume ratio of the hydrogen fuel in the hydrogen-blended fuel gas. The design temperature value and the obtained temperature feedback value after the speed ratio valve are transmitted to the controller so that the controller can control the heater, so that the heater can adjust the temperature of the hydrogen-blended fuel gas passing through the heater to the design temperature value, and then deliver the temperature-adjusted hydrogen-blended fuel gas to the fuel system.

[0096] The temperature control method for hydrogen-blended fuel gas proposed in this embodiment requires minimal equipment changes, has simple control logic implementation, and effectively achieves the given temperature design value for hydrogen-blended fuel gas.

[0097] In this embodiment, by detecting the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system, the corresponding Weber index design value of the hydrogen-blended gas turbine system is determined. The first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas are obtained when the hydrogen-blended fuel gas is at its highest hydrogen blending ratio. Based on the hydrogen volume ratio, Weber index design value, first design calorific value, second design calorific value, and reference temperature value, the temperature design value of the hydrogen-blended fuel gas is determined. This allows for accurate setting of the temperature design value of the hydrogen-blended fuel gas based on the hydrogen volume ratio in the hydrogen-blended fuel gas mixture, ensuring that the Weber index of the mixture is within the allowable range of Weber index variation, guaranteeing complete combustion of the hydrogen-blended fuel gas. This hydrogen-blended fuel gas equipment exhibits minimal variation, the control logic is simple to implement, and the temperature design value of the hydrogen-blended fuel gas is effectively achieved.

[0098] Figure 7 This is a schematic diagram of the structure of a temperature control device for hydrogen-blended fuel gas according to an embodiment of this disclosure.

[0099] like Figure 7 As shown, the temperature control device 70 for hydrogen-blended fuel gas is applied in a hydrogen-blended gas turbine system. The device includes: The detection module 701 is used to detect the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system. The first determining module 702 is used to determine the Weber index design value corresponding to the hydrogen-blended gas turbine system; The first acquisition module 703 is used to acquire the first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the state of the highest hydrogen blending ratio. The second determining module 704 is used to determine the temperature design value of the hydrogen-blended fuel gas based on the hydrogen volume ratio value, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value.

[0100] In some embodiments of this disclosure, such as Figure 8 As shown, Figure 8 This is a schematic diagram of a temperature control device for hydrogen-blended fuel gas according to another embodiment of this disclosure, wherein the device further includes: The second acquisition module 705 is used to acquire the feedback temperature value of the hydrogen-blended fuel gas after passing through the speed ratio valve in the hydrogen-blended gas turbine system. The first transmission module 706 is used to transmit the feedback temperature value and the temperature design value to the controller of the hydrogen-blended gas turbine system, so that the controller generates a temperature control command. The second transmission module 707 is used to transmit temperature control commands to the heater of the hydrogen-blended gas turbine system so that the heater can perform temperature control processing on the hydrogen-blended fuel gas.

[0101] In some embodiments of this disclosure, the second determining module 704 is specifically used for: The calorific value of the mixed fuel gas with hydrogen is determined based on the hydrogen volume ratio, the first design calorific value, and the second design calorific value. The reference relative density value of the hydrogen-blended fuel gas is determined based on the first gas relative density value of hydrogen fuel, the second gas relative density value of natural gas fuel, and the hydrogen volume ratio value. The temperature design value is determined based on the calorific value of the mixed fuel, the reference relative density value, the Weber index design value, and the reference temperature value.

[0102] In some embodiments of this disclosure, the second determining module 704 is further configured to: The first ratio result of determining the calorific value of the mixed fuel to the reference relative density value; Determine the second ratio result between the designed value of the Weber exponent and the first ratio result; A third ratio result is determined between the reference temperature value and the second ratio result, wherein the third ratio result is used as the temperature design value.

[0103] In some embodiments of this disclosure, the second determining module 704 is further configured to: The volume ratio of natural gas in the hydrogen-blended fuel gas is determined based on the volume ratio of hydrogen. Determine the first product result of the first design calorific value and the hydrogen volume ratio; Determine the second product result of the second design calorific value and the natural gas volume ratio; The calorific value of the mixed fuel is obtained by summing the first product result and the second product result.

[0104] In some embodiments of this disclosure, the second determining module 704 is further configured to Determine the third product of the relative density of the first gas and the volume ratio of hydrogen. Determine the fourth product of the relative density of the second gas and the volume ratio of natural gas; The reference relative density value is determined based on the results of the third and fourth products.

[0105] In some embodiments of this disclosure, the first determining module 702 is specifically used for: Obtain a first Weber index threshold and a second Weber index threshold for the hydrogen-blended gas turbine system, wherein the first Weber index threshold is used to indicate the upper limit of the Weber index of the hydrogen-blended gas turbine system, and the second Weber index threshold is used to indicate the lower limit of the Weber index of the hydrogen-blended gas turbine system. The design value of the Weber exponent is determined based on the first and second Weber exponent thresholds.

[0106] With the above Figures 1 to 6 Corresponding to the temperature control method for hydrogen-blended fuel gas provided in the embodiments, this disclosure also provides a temperature control device for hydrogen-blended fuel gas. Since the temperature control device for hydrogen-blended fuel gas provided in the embodiments of this disclosure is similar to the one described above... Figures 1 to 6 The temperature control method for hydrogen-blended fuel gas provided in the embodiments corresponds to the temperature control device for hydrogen-blended fuel gas provided in the embodiments of this disclosure, and will not be described in detail in the embodiments of this disclosure.

[0107] In this embodiment, by detecting the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system, the Weber index design value corresponding to the hydrogen-blended gas turbine system is determined. The first design calorific value of hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas are obtained when the hydrogen-blended fuel gas is at its highest hydrogen blending ratio. Based on the hydrogen volume ratio, the Weber index design value, the first design calorific value, the second design calorific value, and the reference temperature value, the temperature design value of the hydrogen-blended fuel gas is determined. This allows for accurate setting of the temperature design value of the hydrogen-blended fuel gas based on the hydrogen volume ratio in the hydrogen-blended fuel gas mixture, ensuring that the Weber index of the mixture is within the allowable range of Weber index variation, and guaranteeing complete combustion of the hydrogen-blended fuel gas.

[0108] To implement the above embodiments, this disclosure also proposes a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the temperature control method for hydrogen-blended fuel gas as proposed in the foregoing embodiments of this disclosure.

[0109] To implement the above embodiments, this disclosure also proposes a computer program product that, when executed by an instruction processor, performs a temperature control method for hydrogen-blended fuel gas as proposed in the foregoing embodiments of this disclosure.

[0110] Figure 9 A block diagram of an exemplary electronic device suitable for implementing embodiments of the present disclosure is shown.

[0111] Figure 9 The electronic device 9 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments disclosed herein.

[0112] like Figure 9 As shown, the electronic device 9 is represented in the form of a general-purpose computing device. The components of the electronic device 9 may include, but are not limited to: one or more processors or processing units 16, memory 28, and bus 18 connecting different system components (including memory 28 and processing unit 16).

[0113] Bus 18 represents one or more of several bus architectures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of the various bus architectures. Examples of these architectures include, but are not limited to, the Industry Standard Architecture (ISA) bus, the Micro Channel Architecture (MAC) bus, the Enhanced ISA bus, the Video Electronics Standards Association (VESA) local bus, and the Peripheral Component Interconnect (PCI) bus.

[0114] Electronic device 9 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by electronic device 9, including volatile and non-volatile media, removable and non-removable media.

[0115] Memory 28 may include computer system readable media in the form of volatile memory, such as Random Access Memory (RAM) 30 and / or cache memory 32. Electronic device 9 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, storage system 34 may be used to read and write non-removable, non-volatile magnetic media (… Figure 9 Not shown; usually referred to as a "hard drive".

[0116] although Figure 9 As not shown, a disk drive for reading and writing to a removable non-volatile disk (e.g., a "floppy disk") and an optical disc drive for reading and writing to a removable non-volatile optical disc (e.g., a compact disc read-only memory (CD-ROM), a digital video disc read-only memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to bus 18 via one or more data media interfaces. Memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the embodiments of this disclosure.

[0117] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in memory 28. Such program modules 42 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data. Each or some combination of these examples may include an implementation of a network environment. Program modules 42 typically perform the functions and / or methods described in the embodiments of this disclosure.

[0118] Electronic device 9 can also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), and with one or more devices that enable human interaction with electronic device 9, and / or with any device that enables electronic device 9 to communicate with one or more other computing devices (e.g., network card, modem, etc.). This communication can be performed via input / output (I / O) interface 22. Furthermore, electronic device 9 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 20. As shown, network adapter 20 communicates with other modules of electronic device 9 via bus 18. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with electronic device 9, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0119] The processing unit 16 executes various functional applications and parameter information determination by running programs stored in the memory 28, such as implementing the temperature control method for hydrogen-blended fuel gas mentioned in the foregoing embodiments.

[0120] It should be noted that in the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0121] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0122] It should be understood that various parts of this disclosure can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0123] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0124] Furthermore, the functional units in the various embodiments of this disclosure can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0125] The storage media mentioned above can be read-only memory, disk, or optical disk, etc.

[0126] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0127] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A method for temperature control of hydrogen-blended fuel gas, applied in a hydrogen-blended gas turbine system, characterized in that, The method includes: The hydrogen volume ratio of the hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system is detected. Determine the design value of the Weber index for the hydrogen-blended gas turbine system; When the hydrogen-blended fuel gas is in the state of maximum hydrogen blending ratio, the first design calorific value of the hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of the natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas are obtained. Based on the first design calorific value and the second design calorific value of the hydrogen-blended fuel gas according to the hydrogen volume ratio, the calorific value of the mixed fuel is determined; based on the first relative density value of the hydrogen fuel, the second relative density value of the natural gas fuel, and the hydrogen volume ratio, a reference relative density value of the hydrogen-blended fuel gas is determined; a first ratio result of the calorific value of the mixed fuel gas and the reference temperature value is determined; a second ratio result of the Weber index design value and the first ratio result is determined; a third ratio result of the reference temperature value and the second ratio result is determined; the third ratio result is determined as the temperature design value of the hydrogen-blended fuel gas; wherein, the formula for determining the third ratio result is: in, For reference temperature value, Design values ​​for the Weiber exponent. The first design calorific value, For the second design calorific value, This refers to the volume ratio of hydrogen. This represents the percentage of natural gas by volume. The relative density value of the first gas. This represents the relative density value of the second gas.

2. The method as described in claim 1, characterized in that, Also includes: Obtain the feedback temperature value of the hydrogen-blended fuel gas after passing through the speed ratio valve in the hydrogen-blended gas turbine system; The feedback temperature value and the temperature design value are transmitted to the controller of the hydrogen-blended gas turbine system, so that the controller generates a temperature control command. The temperature control command is transmitted to the heater of the hydrogen-blended gas turbine system so that the heater performs temperature control processing on the hydrogen-blended fuel gas.

3. The method as described in claim 1, characterized in that, Determining the calorific value of the hydrogen-blended fuel gas based on the hydrogen volume ratio, the first design calorific value, and the second design calorific value includes: The volume ratio of natural gas in the hydrogen-blended fuel gas is determined based on the hydrogen volume ratio value. Determine the first product result of the first design calorific value and the hydrogen volume ratio value; Determine the second product result of the second design calorific value and the natural gas volume ratio; The first product result and the second product result are summed to obtain the calorific value of the mixed fuel.

4. The method as described in claim 3, characterized in that, Determining the reference relative density value of the hydrogen-blended fuel gas based on the first gas relative density value of the hydrogen fuel, the second gas relative density value of the natural gas fuel, and the hydrogen volume ratio value includes: Determine the third product of the relative density of the first gas and the volume ratio of the hydrogen gas; Determine the fourth product result of the relative density value of the second gas and the volume ratio of the natural gas; The reference relative density value is determined based on the third product result value and the fourth product result value.

5. The method as described in claim 1, characterized in that, Determining the Weber index design value corresponding to the hydrogen-blended gas turbine system includes: Obtain a first Weber index threshold and a second Weber index threshold for the hydrogen-blended gas turbine system, wherein the first Weber index threshold is used to indicate the upper limit of the Weber index of the hydrogen-blended gas turbine system, and the second Weber index threshold is used to indicate the lower limit of the Weber index of the hydrogen-blended gas turbine system. The design value of the Weber index is determined based on the first Weber index threshold and the second Weber index threshold.

6. A temperature control device for hydrogen-blended fuel gas, applied in a hydrogen-blended gas turbine system, characterized in that, The device includes: The detection module is used to detect the hydrogen volume ratio of hydrogen fuel in the hydrogen-blended fuel gas output from the gas mixing pipeline outlet of the hydrogen-blended gas turbine system. The first determining module is used to determine the Weber index design value corresponding to the hydrogen-blended gas turbine system; The first acquisition module is used to acquire the first design calorific value of the hydrogen fuel in the hydrogen-blended fuel gas, the second design calorific value of the natural gas fuel in the hydrogen-blended fuel gas, and the reference temperature value of the hydrogen-blended fuel gas when the hydrogen-blended fuel gas is in the state of the highest hydrogen blending ratio. The second determining module is used to determine the calorific value of the hydrogen-blended fuel gas based on the first design calorific value and the second design calorific value of the hydrogen volume ratio; determine a reference relative density value of the hydrogen-blended fuel gas based on the first relative density value of the hydrogen fuel, the second relative density value of the natural gas fuel, and the hydrogen volume ratio; determine a first ratio result of the calorific value of the blended fuel gas and the reference temperature value; determine a second ratio result of the Weber index design value and the first ratio result; determine a third ratio result of the reference temperature value and the second ratio result; and determine the third ratio result as the temperature design value of the hydrogen-blended fuel gas; wherein the formula for determining the third ratio result is: in, For reference temperature value, Design values ​​for the Weiber exponent. The first design calorific value, For the second design calorific value, This refers to the volume ratio of hydrogen. This represents the percentage of natural gas by volume. The relative density value of the first gas. This represents the relative density value of the second gas.

7. An electronic device, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the temperature control method for hydrogen-blended fuel gas according to any one of claims 1-5.

8. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, in, The computer instructions are used to cause the computer to execute the temperature control method for hydrogen-blended fuel gas as described in any one of claims 1-5.

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