Use method, system and equipment of quenching device and storage medium

Abstract

The invention discloses a using method, system and equipment of a quenching device and a storage medium, and the using method of the quenching device comprises the following steps: constructing a cooling medium flow numerical model based on a to-be-quenched workpiece and the quenching device; based on a cooling medium flow numerical model and preset inlet average speed boundary values corresponding to all the inlets of the quenching tank, a first inlet flow rate set is determined through analogue simulation of flow field distribution, and under the condition that a second inlet flow rate set corresponding to all the inlets of the quenching device is set based on the first inlet flow rate set and a preset flow rate proportion value, the first inlet flow rate set is determined; acquiring a third inlet flow rate set of the target working area, and determining a flow rate deviation value based on the first inlet flow rate set and the third inlet flow rate set; and under the condition that the flow velocity deviation value is smaller than or equal to the preset deviation threshold value, the to-be-quenched workpiece heated to the preset temperature is placed in the target working area of the quenching tank, so that the to-be-quenched workpiece is quenched, and the quenching quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of quenching apparatus, and in particular to a method, system, equipment and storage medium for using a quenching apparatus. Background Technology

[0002] Quenching is a commonly used strengthening process in metal heat treatment. It involves rapidly cooling a heated workpiece to induce a phase transformation in the material's microstructure, thereby improving the workpiece's hardness, strength, and wear resistance. The heat exchange state between the cooling medium and the surface of the workpiece directly affects the cooling rate and final properties during quenching. In actual production and experimental research, quenching oil is a commonly used cooling medium, and its flow state has a significant impact on the heat exchange intensity and cooling uniformity of the workpiece surface. However, existing quenching devices often use a single inlet or a single flow rate to supply the cooling medium, which can easily lead to local high-speed scouring zones and low-speed stagnant zones. This results in uneven cooling of the workpiece surface, leading to differences in microstructure and properties, quenching deformation, and even cracking. Summary of the Invention

[0003] This application aims to at least address the technical problems existing in the prior art. To this end, this application proposes a method, system, equipment, and storage medium for using a quenching device, which enables the use of a multi-inlet, multi-flow-rate cooling medium supply method in the quenching device, solving the problem of uneven distribution of the quenching cooling medium flow field, improving the quenching consistency and stability of the workpiece to be quenched, and enhancing the quenching quality.

[0004] A first aspect of this application provides a method of using a quenching apparatus, the quenching apparatus including a quenching tank, comprising the following steps: Based on the workpiece to be quenched and the quenching device, a numerical model of the cooling medium flow is constructed. Based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, the first inlet velocity set is determined through the simulation of the flow field distribution. The first inlet velocity set includes the inlet velocities of all inlets of the quenching tank. Based on the first inlet velocity set and a preset velocity ratio value, and setting the second inlet velocity set corresponding to all inlets of the quenching device, a third inlet velocity set for the target working area is obtained, wherein the third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. Based on the first inlet velocity set and the third inlet velocity set, the velocity deviation value is determined; When the flow rate deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed in the target working area of ​​the quenching tank to perform quenching treatment on the workpiece.

[0005] The method of using the quenching apparatus according to the embodiments of this application has at least the following beneficial effects: This application, based on the workpiece to be quenched and the quenching device, constructs a numerical model of the cooling medium flow. Then, based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, it determines a first inlet velocity set through flow field distribution simulation. The first inlet velocity set includes the inlet velocities corresponding to all inlets of the quenching tank. Based on the first inlet velocity set and a preset velocity ratio, it sets a second inlet velocity set corresponding to all inlets of the quenching device, and obtains a third inlet velocity set for the target working area. The third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. Based on the first and third inlet velocity sets, it determines a velocity deviation value. If the velocity deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed within the target working area of ​​the quenching tank for quenching treatment. This allows for the use of a multi-inlet, multi-velocity cooling medium supply method in the quenching device, solving the problem of uneven distribution of the quenching cooling medium flow field, improving the quenching consistency and stability of the workpiece, and enhancing the quenching quality.

[0006] According to some embodiments of this application, before determining the first inlet velocity set through flow field distribution simulation based on the numerical model of the cooling medium flow and the preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank, the process includes: The basic governing equation expression is constructed using the following formula:

[0007] in, For the inlet velocity vector of all inlets; Given the mass density and kinematic viscosity of the quenching oil, the Navier-Stokes equation expression is constructed based on the mass density and kinematic viscosity using the following formula:

[0008] in, Let be the mass density, and t be the time t. For Hamiltonian operators, The velocity vector is the flow velocity. For the Laplace operator, For kinematic viscosity, For pressure; With a three-dimensional Cartesian coordinate system in place, the turbulence model expression is constructed based on this system using the following formula:

[0009] in, For turbulent kinetic energy, In a three-dimensional rectangular coordinate system Flow velocity in the axial direction, In a three-dimensional rectangular coordinate system Coordinates along the axial direction, In a three-dimensional rectangular coordinate system Coordinates along the axial direction, In a three-dimensional rectangular coordinate system Flow velocity in the axial direction, For turbulent viscosity, The first model constant value is set in advance. For turbulent dissipation rate, The second model constant value is set in advance. The pre-set constant values ​​for the third model. For buoyancy turbulent kinetic energy, The turbulent kinetic energy generated by the velocity gradient, The pre-set constant value for the fourth model. The pre-set constant value for the fifth model; The flow field distribution is simulated based on the numerical model of the cooling medium flow and several sets of preset inlet velocity sets to obtain the first inlet velocity set, including: Based on the basic control equation expression, the NS equation expression, the turbulence model expression, the cooling medium flow numerical model, and the preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank, the first inlet velocity set is determined through flow field distribution simulation.

[0010] According to some embodiments of this application, the step of determining the first inlet velocity set through flow field distribution simulation based on the basic control equation expression, the NS equation expression, the turbulence model expression, the cooling medium flow numerical model, and the preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank includes: Having obtained the inlet cross-sectional area for each inlet, and based on the inlet cross-sectional area and the preset inlet average velocity boundary value, the following formula is used to construct an expression for the relationship between flow rate and velocity:

[0011] in, This represents the preset inlet average velocity boundary value corresponding to the nth inlet. Let n be the cross-sectional area of ​​the entrance corresponding to the nth entrance. The inlet volume flow rate corresponding to the nth inlet. This represents the total number of inlets to the quenching tanks. Total inbound traffic, For pump output flow rate, For the pre-acquired pump displacement parameter values, For the pre-acquired pump speed, For actual effective traffic, The volumetric efficiency value is obtained in advance; Based on the basic control equation expression, the NS equation expression, the turbulence model expression, the cooling medium flow numerical model, and the flow rate and velocity relationship expression, the flow field distribution is simulated to obtain the simulated inlet velocity set, wherein the simulated inlet velocity set includes the simulated inlet velocities corresponding to all inlets of the quenching tank; Based on the basic control equation expression, the NS equation expression, the turbulence model expression, and the cooling medium flow numerical model, the flow field distribution is simulated to obtain the simulated inlet velocity set, wherein the simulated inlet velocity set includes the simulated inlet velocities corresponding to all inlets of the quenching tank; If the simulated inlet velocity satisfies the residual function and parameter update equation expressions, the simulated inlet velocity is taken as the first inlet velocity set, wherein the residual function and parameter update equation expressions are:

[0012] in, Let n be the simulated inlet velocity corresponding to the nth inlet at time t. The measured inlet velocity corresponds to the m-th inlet at time t, which was measured in advance. The weighting coefficient for the s-th monitoring point is set in advance. For the pre-set target threshold, For a pre-set set of steady-state time samples, The objective function value is given by the preset inlet average velocity boundary value of b. The threshold for the pre-set residual function.

[0013] According to some embodiments of this application, the method further includes: Based on the simulated inlet velocity and the measured inlet velocity corresponding to each inlet of the quenching tank, the average residual value is determined; Given that the flow distribution coefficient for the first iteration is set for each inlet of the quenching tank, and the simulated inlet flow velocity does not satisfy the residual function and parameter update equation expression, and the current iteration number is k, the flow distribution coefficient for the kth iteration is updated using the following formula:

[0014] in, The flow allocation coefficient for the nth inlet in the kth iteration. For the nth entry point The flow allocation coefficient for k iterations For the preset step size, Let be the average residual of the k-th iteration. The sensitivity weight value for the nth input is preset; The preset inlet average velocity boundary value is updated using the following formula to obtain the first... The preset inlet average velocity boundary value for the next iteration is:

[0015] in, For the nth entry point The preset inlet average velocity boundary value for the next iteration; All the entries corresponding to the first The preset inlet average velocity boundary value of the next iteration is used as the expression for the relationship between flow rate and velocity. , obtained the The expression for the flow rate versus velocity relationship in the next iteration, based on the fundamental governing equation, the Navier-Stokes equation, the turbulence model, the cooling medium flow numerical model, and the first iteration... The expression for the relationship between flow rate and velocity in the next iteration is used to simulate the flow field distribution and obtain the updated simulated inlet velocity set. If the updated simulated inlet velocity set satisfies the expression of the residual function and the parameter update equation, the updated simulated inlet velocity set shall be used as the first inlet velocity set.

[0016] According to some embodiments of this application, the step of obtaining a third inlet velocity set for the target working area, based on the first inlet velocity set and a preset velocity ratio value, and setting a second inlet velocity set corresponding to all inlets of the quenching device, includes: When the first inlet velocity set is multiplied by the preset velocity ratio to obtain the second inlet velocity set corresponding to all inlets of the quenching device, the third inlet velocity set of the target working area is collected by a probe installed in advance.

[0017] According to some embodiments of this application, determining the velocity deviation value based on the first inlet velocity set and the third inlet velocity set includes: Calculate the average of all first inlet velocities in the first inlet velocity set, and use it as the simulated inlet velocity average. Calculate the average of all third inlet velocities in the third inlet velocity set, and use it as the average of the measured inlet velocities; The velocity deviation value is obtained by subtracting the measured average inlet velocity from the simulated average inlet velocity.

[0018] According to some embodiments of this application, the method further includes: If the flow velocity deviation value is greater than the preset deviation threshold, the average measured inlet flow velocity is divided by the average simulated inlet flow velocity to obtain the correction ratio value. Multiply the correction ratio value by the first inlet velocity set to obtain the updated first inlet velocity set; Based on the updated first inlet velocity set and the preset velocity ratio value, and setting the fourth inlet velocity set corresponding to all inlets of the quenching device, the fifth inlet velocity set of the target working area is measured by a carbon rod. Based on the updated first inlet velocity set and the fifth inlet velocity set, the updated velocity deviation value is determined; If the updated flow rate deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed in the target working area of ​​the quenching tank to perform quenching treatment on the workpiece.

[0019] A second aspect of this application provides a system for using a quenching apparatus, applied to a quenching apparatus including a quenching tank, and the system for using the quenching apparatus includes: The first inlet velocity set determination module is used to determine the first inlet velocity set by simulation of the flow field distribution based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, when a numerical model of the cooling medium flow is constructed based on the workpiece to be quenched and the quenching device. The first inlet velocity set includes the inlet velocities corresponding to all inlets of the quenching tank. The third inlet velocity set acquisition module is used to acquire the third inlet velocity set of the target working area when the second inlet velocity set corresponding to all inlets of the quenching device is set based on the first inlet velocity set and a preset velocity ratio value. The third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. The velocity deviation value determination module is used to determine the velocity deviation value based on the first inlet velocity set and the third inlet velocity set; The quenching module is used to place the workpiece to be quenched, heated to a preset temperature, into the target working area of ​​the quenching tank when the flow rate deviation value is less than or equal to a preset deviation threshold, so as to perform quenching treatment on the workpiece to be quenched.

[0020] This system, based on the workpiece to be quenched and the quenching device, constructs a numerical model of the cooling medium flow. Then, based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, it determines the first inlet velocity set through flow field distribution simulation. The first inlet velocity set includes the inlet velocities corresponding to all inlets of the quenching tank. Based on the first inlet velocity set and a preset velocity ratio, it sets a second inlet velocity set corresponding to all inlets of the quenching device, and obtains a third inlet velocity set for the target working area. The third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. Based on the first and third inlet velocity sets, it determines the velocity deviation value. If the velocity deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed within the target working area of ​​the quenching tank for quenching treatment. This system enables the use of a multi-inlet, multi-velocity cooling medium supply method in the quenching device, solving the problem of uneven distribution of the quenching cooling medium flow field, improving the quenching consistency and stability of the workpiece, and enhancing the quenching quality.

[0021] A third aspect of this application provides an electronic device for using a quenching apparatus, including at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor, which, when executed by the at least one control processor, enables the at least one control processor to perform the above-described method of using the quenching apparatus.

[0022] A fourth aspect of this application provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the above-described method of using the quenching apparatus.

[0023] It should be noted that the beneficial effects of the second to fourth aspects of this application with respect to the prior art are the same as the beneficial effects of the above-described quenching device system with respect to the prior art, and will not be described in detail here.

[0024] Additional aspects and advantages of this application 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 application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic flowchart illustrating an embodiment of the method of using the quenching apparatus provided in this application; Figure 2 This is a schematic diagram of a quenching apparatus according to an embodiment of the method of using the quenching apparatus provided in this application; Figure 3 This is a schematic diagram of the flow velocity cloud in the quenching tank of an embodiment of the method of using the quenching device provided in this application; Figure 4 This is a schematic diagram of the flow velocity in the quenching tank along the y-axis and z-axis at different inlet flow velocities in the quenching device provided in this application. Figure 5 This is a schematic diagram of the structure of an embodiment of the quenching apparatus used in this application; Figure 6 This is a schematic diagram of the structure of an embodiment of the electronic device provided in this application. Detailed Implementation

[0026] The embodiments of this application are described in detail below. Examples of the embodiments are shown 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 only used to explain this application, and should not be construed as limiting this application.

[0027] In the description of this application, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0028] In the description of this application, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] In the description of this application, it should be noted that, unless otherwise explicitly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0030] Quenching is a commonly used strengthening process in metal heat treatment. It involves rapidly cooling a heated workpiece to induce a phase transformation in the material's microstructure, thereby improving the workpiece's hardness, strength, and wear resistance. The heat exchange state between the cooling medium and the surface of the workpiece directly affects the cooling rate and final properties during quenching. In actual production and experimental research, quenching oil is a commonly used cooling medium, and its flow state has a significant impact on the heat exchange intensity and cooling uniformity of the workpiece surface. However, existing quenching devices often use a single inlet or a single flow rate to supply the cooling medium, which can easily lead to local high-speed scouring zones and low-speed stagnant zones. This results in uneven cooling of the workpiece surface, leading to differences in microstructure and properties, quenching deformation, and even cracking.

[0031] To address the aforementioned technical deficiencies, embodiments of this application provide a method, system, device, and storage medium for using a quenching apparatus.

[0032] Please see Figure 1 This is a flowchart illustrating a method of using a quenching apparatus according to an embodiment of this application. The method is applied to a quenching apparatus, which includes a quenching tank. Figure 1 As shown, the method of using this quenching device includes: Step S101: Based on the workpiece to be quenched and the quenching device, a numerical model of the cooling medium flow is constructed. Based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, the first inlet velocity set is determined through the simulation of the flow field distribution. The first inlet velocity set includes the inlet velocities of all inlets of the quenching tank. Step S102: Based on the first inlet velocity set and the preset velocity ratio value, and setting the second inlet velocity set corresponding to all inlets of the quenching device, obtain the third inlet velocity set of the target working area, wherein the third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. The above-mentioned preset flow rate ratio value can be a value that can be preset according to actual needs.

[0033] Step S103: Determine the velocity deviation value based on the first inlet velocity set and the third inlet velocity set; Step S104: When the flow rate deviation value is less than or equal to the preset deviation threshold, place the workpiece to be quenched, heated to the preset temperature, in the target working area of ​​the quenching tank for quenching treatment.

[0034] The aforementioned quenching apparatus may also include an oil tank and a fixed-displacement hydraulic pump.

[0035] The preset temperature can be a value set in advance according to actual needs.

[0036] Reference Figure 2 , Figure 2 In The diameter is measured in millimeters. Specifically, the main principle of the above-mentioned quenching device is as follows: a quantitative hydraulic pump extracts oil from the oil tank and distributes it to four branch pipes through the main pipeline. The four oil streams are injected from below the quenching tank at a set flow rate. They converge and interlock in the working area (where the probe is located) within the tank, forming a uniform flow field with low turbulence. The hot oil after heat exchange flows back to the oil tank through the overflow pipe above, completing the circulation.

[0037] The oil tank is located on the far left (or bottom) of the device and is used to hold the quenching oil. An oil outlet is located at the bottom of the tank, which is connected to the inlet of a fixed-displacement hydraulic pump (model YB-1-50) via a suction pipe. This hydraulic pump has a rated speed of 960 rpm, a displacement of 50 ml per rpm, and an inlet / outlet diameter of 30 mm, providing a stable main flow rate for the system.

[0038] The quenching tank has a radius of 50mm and a height of 180mm. To reduce the impact of single-stream fluid and improve uniformity, four small inlet holes (i.e., four inlets) are evenly opened circumferentially below the side wall (or bottom) of the quenching tank. An overflow pipe (oil return pipe) is installed above the quenching tank, and the outlet of the overflow pipe extends into the oil tank to form a closed loop circulation.

[0039] The outlet of the fixed-displacement hydraulic pump is connected to a main oil supply pipe. At the end of the main supply pipe is a four-way distributor (or distributor), dividing the main oil circuit into four independent branches. Each branch is connected to a small inlet orifice on the quenching tank via a separate pipe. To achieve "multi-velocity" and "uniformity adjustment," a flow regulating valve (or throttle valve) and a flow meter (not shown in the diagram, but necessary for the implementation) are connected in series on each inlet pipe. By adjusting the opening of each branch valve, in conjunction with adjusting the speed of the fixed-displacement hydraulic pump, independent or coordinated control of the four inlet flow velocities can be achieved. The oil pipes are connected to the oil tank, pump, and valves using common threads, seals, and bolts.

[0040] In step S104, the aforementioned process of placing the workpiece to be quenched, heated to a preset temperature, within the target working area of ​​the quenching tank when the flow rate deviation is less than or equal to a preset deviation threshold, for quenching the workpiece, can be described as follows: The workpiece to be quenched is placed within the target working area of ​​the quenching tank when the flow rate deviation is less than or equal to a preset deviation threshold, and quenching is performed under preset multi-flow rate conditions, so that the surface of the workpiece to be quenched completes the cooling process under the action of a uniformly flowing cooling medium. Specifically: The workpiece to be quenched is heated to a preset temperature and removed after the holding time reaches the preset process requirements; the transfer time is controlled during the transfer process to ensure that the temperature of the workpiece to be quenched is within the preset allowable range before entering the quenching tank.

[0041] Once it is confirmed that a stable and uniform multi-velocity flow field has been formed in the quenching tank, the workpiece to be quenched is quickly placed into the target working area of ​​the quenching tank, so that the workpiece to be quenched is located in the mainstream area formed by the synergistic effect of multiple cooling medium inlets, and interference between the workpiece to be quenched and the wall or inlet structure of the quenching tank is avoided.

[0042] The above-mentioned confirmation that a stable and uniform multi-velocity flow field has been formed in the quenching tank can be achieved as follows: Before placing the workpiece to be quenched into the tank, the flow field status is confirmed through a dual mechanism of real-time monitoring and mechanical positioning device: the flow velocity data collected by the probe in the target working area is read in real time, and the time stability index is continuously calculated. When the index is lower than the preset threshold (e.g., 5%) set according to actual needs for a preset period of time (e.g., 10 seconds), it is determined that a stable and uniform multi-velocity flow field has been formed in the quenching tank, and a "load allowed" control signal is output.

[0043] During the quenching process, the flow rate parameters of each cooling medium inlet are kept at the set state so that the quenching oil with different flow rates forms a continuous and uniform scouring flow on the surface of the workpiece to be quenched, so as to ensure that each surface of the workpiece to be quenched obtains basically consistent heat exchange conditions under the action of the cooling medium.

[0044] During the cooling process of the workpiece to be quenched, the flow rate of the cooling medium in the target working area is continuously monitored by a probe. When the flow rate fluctuation exceeds the preset range set according to actual needs, the flow rate of each inlet is finely adjusted according to the preset adjustment amount set according to actual needs in order to maintain the stability of the flow field in the working area.

[0045] Once the workpiece to be quenched has cooled to the predetermined termination temperature or reached the preset cooling time, it is removed from the quenching tank to complete the quenching process. The cooling medium circulation system continues to run for a preset time to eliminate flow field disturbances and provide stable initial conditions for subsequent quenching of workpieces.

[0046] This application, based on the workpiece to be quenched and the quenching device, constructs a numerical model of the cooling medium flow. Then, based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, it determines a first inlet velocity set through flow field distribution simulation. The first inlet velocity set includes the inlet velocities corresponding to all inlets of the quenching tank. Based on the first inlet velocity set and a preset velocity ratio, it sets a second inlet velocity set corresponding to all inlets of the quenching device, and obtains a third inlet velocity set for the target working area. The third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. Based on the first and third inlet velocity sets, it determines a velocity deviation value. If the velocity deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed within the target working area of ​​the quenching tank for quenching treatment. This allows for the use of a multi-inlet, multi-velocity cooling medium supply method in the quenching device, solving the problem of uneven distribution of the quenching cooling medium flow field, improving the quenching consistency and stability of the workpiece, and enhancing the quenching quality.

[0047] In some embodiments, steps S201 to S203 may be included before step S101: Step S201: Construct the basic governing equation expression using the following formula:

[0048] in, For the inlet velocity vector of all inlets; Step S202: Given the mass density and kinematic viscosity of the quenching oil, construct the Navier-Stokes equation expression based on the mass density and kinematic viscosity using the following formula:

[0049] in, Let be the mass density, and t be the time t. For Hamiltonian operators, The velocity vector is the flow velocity. For the Laplace operator, For kinematic viscosity, For pressure; Step S203: With a three-dimensional rectangular coordinate system in place, construct the turbulence model expression based on the three-dimensional rectangular coordinate system using the following formula:

[0050] in, For turbulent kinetic energy, In a three-dimensional rectangular coordinate system Flow velocity in the axial direction, In a three-dimensional rectangular coordinate system Coordinates along the axial direction, In a three-dimensional rectangular coordinate system Coordinates along the axial direction, In a three-dimensional rectangular coordinate system Flow velocity in the axial direction, For turbulent viscosity, The first model constant value is set in advance. For turbulent dissipation rate, The second model constant value is set in advance. The pre-set constant values ​​for the third model. For buoyancy turbulent kinetic energy, The turbulent kinetic energy generated by the velocity gradient, The pre-set constant value for the fourth model. The pre-set constant value for the fifth model; Step S101 may include step S204: Step S204: Based on the basic control equation expression, NS equation expression, turbulence model expression, cooling medium flow numerical model, and preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank, determine the first inlet velocity set through flow field distribution simulation.

[0051] This application determines the first inlet velocity set by simulating the flow field distribution based on the basic control equation expression, NS equation expression, turbulence model expression, cooling medium flow numerical model and preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank. This enables the rational distribution and coordinated operation of momentum at multiple inlets, thereby improving the utilization rate and efficiency of the cooling medium.

[0052] In some embodiments, step S204 may include steps S301 to S304: Step S301: After obtaining the inlet cross-sectional area for each inlet, construct the expression for the relationship between flow rate and velocity based on the inlet cross-sectional area and the preset inlet average velocity boundary value using the following formula:

[0053] in, This represents the preset inlet average velocity boundary value corresponding to the nth inlet. Let n be the cross-sectional area of ​​the entrance corresponding to the nth entrance. The inlet volume flow rate corresponding to the nth inlet. This represents the total number of inlets to the quenching tanks. Total inbound traffic, For pump output flow rate, For the pre-acquired pump displacement parameter values, For the pre-acquired pump speed, For actual effective traffic, The volumetric efficiency value is obtained in advance; The aforementioned preset inlet average velocity boundary value is a value pre-set according to actual needs.

[0054] Step S302: Based on the basic control equation expression, NS equation expression, turbulence model expression, cooling medium flow numerical model and flow rate and velocity relationship expression, perform flow field distribution simulation to obtain the simulation inlet velocity set, wherein the simulation inlet velocity set includes the simulation inlet velocity corresponding to all inlets of the quenching tank; Step S303: Based on the basic control equation expression, NS equation expression, turbulence model expression and cooling medium flow numerical model, perform flow field distribution simulation to obtain the simulation inlet velocity set, wherein the simulation inlet velocity set includes the simulation inlet velocity corresponding to all inlets of the quenching tank; Step S304: If the simulated inlet velocity satisfies the expressions of the residual function and the parameter update equation, the simulated inlet velocity is taken as the first inlet velocity set, wherein the expressions of the residual function and the parameter update equation are:

[0055] in, Let n be the simulated inlet velocity corresponding to the nth inlet at time t. The measured inlet velocity corresponds to the m-th inlet at time t, which was measured in advance. The weighting coefficient for the s-th monitoring point is set in advance. For the pre-set target threshold, For a pre-set set of steady-state time samples, The objective function value is given by the preset inlet average velocity boundary value of b. The threshold for the pre-set residual function.

[0056] This application determines the first inlet velocity set by simulating the flow field distribution based on the basic control equation expression, NS equation expression, turbulence model expression, cooling medium flow numerical model and preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank. This enables the rational distribution and coordinated operation of momentum at multiple inlets, thereby improving the utilization rate and efficiency of the cooling medium.

[0057] Reference Figures 3 to 4 In some embodiments, the method may further include steps S401 to S405: Step S401: Determine the average residual value based on the simulated inlet velocity and the measured inlet velocity corresponding to each inlet of the quenching tank; In step S401, the residual average value can be determined by calculating the residual average value of the simulated inlet flow rate and the measured inlet flow rate corresponding to each inlet of the quenching tank.

[0058] Step S402: Given the flow distribution coefficients for the first iteration at each inlet of the quenching tank, and assuming the simulated inlet flow velocity does not satisfy the residual function and parameter update equation expressions, and the current iteration number is k, update the flow distribution coefficients for the kth iteration using the following formula:

[0059] in, The flow allocation coefficient for the nth inlet in the kth iteration. For the nth entry point The flow allocation coefficient for k iterations For the preset step size, Let be the average residual of the k-th iteration. The sensitivity weight value for the nth input is preset; Step S403: Update the preset inlet average velocity boundary value using the following formula to obtain the first... The preset inlet average velocity boundary value for the next iteration is:

[0060] in, For the nth entry point The preset inlet average velocity boundary value for the next iteration; Step S404: For all entries corresponding to the first... The preset inlet average velocity boundary value of the next iteration is used as the expression for the relationship between flow rate and velocity. , obtained the The expression for the flow rate versus velocity relationship in the next iteration is derived, based on the expressions for the basic governing equations, the Navier-Stokes equations, the turbulence model, the numerical model of the cooling medium flow, and the first iteration. The expression for the relationship between flow rate and velocity in the next iteration is used to simulate the flow field distribution and obtain the updated simulated inlet velocity set. Step S405: If the updated simulated inlet velocity set satisfies the residual function and parameter update equation expression, the updated simulated inlet velocity set is taken as the first inlet velocity set.

[0061] This application achieves self-consistent convergence of flow field simulation and physical control equations by using the updated simulated inlet velocity as the first inlet velocity set, provided that the updated simulated inlet velocity set satisfies the residual function and parameter update equation expressions. This ensures the physical rationality and numerical reliability of the flow field calculation.

[0062] In some embodiments, step S102 may include step S501: Step S501: After multiplying the first inlet velocity set with a preset velocity ratio value to obtain the second inlet velocity set corresponding to all inlets of the quenching device, the third inlet velocity set of the target working area is collected by the probe of the pre-installed device.

[0063] This application, by multiplying the first inlet velocity set with a preset velocity ratio to obtain the second inlet velocity set corresponding to all inlets of the quenching device, and then collecting the third inlet velocity set of the target working area through a pre-installed probe, can achieve multi-inlet velocity coordination and matching, mutual verification between simulation and actual measurement, improve flow field control accuracy and cooling uniformity, enhance process stability and traceability, and reduce debugging costs and quenching defect rate.

[0064] In some embodiments, step S103 may include steps S601 to S603: Step S601: Calculate the average value of all first inlet velocities in the first inlet velocity set, and use it as the average value of the simulated inlet velocity; Step S602: Calculate the average value of all third inlet velocities in the third inlet velocity set, and use it as the average value of the measured inlet velocity; Step S603: Subtract the measured average inlet velocity from the simulated average inlet velocity to obtain the velocity deviation value.

[0065] This application obtains the flow velocity deviation value by subtracting the average inlet flow velocity from the average simulated inlet flow velocity, providing more accurate data for subsequent processing and thus improving the quenching quality.

[0066] In some embodiments, the method may further include steps S701 to S705: Step S701: If the flow velocity deviation value is greater than the preset deviation threshold, divide the average measured inlet flow velocity by the average simulated inlet flow velocity to obtain the correction ratio value. Step S702: Multiply the correction ratio value by the first inlet velocity set to obtain the updated first inlet velocity set; Step S703: Based on the updated first inlet velocity set and the preset velocity ratio value, and setting the fourth inlet velocity set corresponding to all inlets of the quenching device, the fifth inlet velocity set of the target working area is measured by carbon rod. Step S704: Based on the updated first inlet velocity set and the fifth inlet velocity set, determine the updated velocity deviation value; Step S705: If the updated flow rate deviation value is less than or equal to the preset deviation threshold, place the workpiece to be quenched, heated to the preset temperature, in the target working area of ​​the quenching tank for quenching treatment.

[0067] This application improves quenching quality by placing the workpiece to be quenched, heated to a preset temperature, within the target working area of ​​the quenching tank when the updated flow rate deviation value is less than or equal to a preset deviation threshold. This ensures that the quenching cooling conditions are consistent with the preset target.

[0068] Specifically, after the quenching process is completed, the method may also include the following sub-steps: The performance or condition of the workpiece after quenching is evaluated. The evaluation includes at least the cooling consistency characterization results of the surface or different positions of the workpiece to be quenched. The cooling consistency characterization results are used to reflect the differences in cooling conditions in different areas during the actual quenching process.

[0069] The above-mentioned cooling consistency characterization results may include: selecting several symmetrically distributed test points (for example, one point every 90 degrees along the circumference) on the characteristic surfaces (such as the front surface, back surface, and side surface) and the core section of the workpiece, measuring the hardness value (HRC or HV) of each point using a Rockwell hardness tester or Vickers hardness tester, and calculating the range (maximum difference) or standard deviation of the hardness values ​​of all test points. This statistical value is the "cooling consistency characterization result", and the smaller the value, the more uniform the cooling.

[0070] If the cooling consistency characterization result exceeds the preset hardness tolerance threshold, it is determined that the workpiece has significant cooling unevenness, and this unevenness is caused by local flow field deviation.

[0071] Based on the spatial distribution characteristics of cooling differences (cooling consistency characterization results) on the workpiece, the inlet flow rate parameters that need to be corrected are determined.

[0072] After completing the correction of the inlet velocity parameters, the numerical model of the cooling medium flow that has been established is directly called, and only the inlet velocity boundary conditions in the model are updated (that is, the determined corrected velocity parameters are input into the model), while keeping the control equations unchanged.

[0073] When the corrected numerical simulation results and the actual quenching effect both meet the consistency and stability requirements preset according to actual needs, the corresponding inlet flow velocity parameter will be used as the recommended parameter for this working condition.

[0074] Additionally, refer to Figure 5One embodiment of this application provides a system for using a quenching apparatus, applied to a quenching apparatus. The quenching apparatus includes a quenching tank and comprises a first inlet flow velocity set determination module 1100, a third inlet flow velocity set acquisition module 1200, a flow velocity deviation value determination module 1300, and a quenching processing module 1400, wherein: The first inlet velocity set determination module 1100 is used to determine the first inlet velocity set by simulation of the flow field distribution based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, when a numerical model of the cooling medium flow is constructed based on the workpiece to be quenched and the quenching device. The first inlet velocity set includes the inlet velocities corresponding to all inlets of the quenching tank. The third inlet velocity set acquisition module 1200 is used to acquire the third inlet velocity set of the target working area when the second inlet velocity set corresponding to all inlets of the quenching device is set based on the first inlet velocity set and the preset velocity ratio value. The third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. The velocity deviation value determination module 1300 is used to determine the velocity deviation value based on the first inlet velocity set and the third inlet velocity set; The quenching module 1400 is used to place the workpiece to be quenched, heated to a preset temperature, into the target working area of ​​the quenching tank when the flow rate deviation value is less than or equal to a preset deviation threshold, so as to perform quenching treatment on the workpiece to be quenched.

[0075] This system, based on the workpiece to be quenched and the quenching device, constructs a numerical model of the cooling medium flow. Then, based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, it determines the first inlet velocity set through flow field distribution simulation. The first inlet velocity set includes the inlet velocities corresponding to all inlets of the quenching tank. Based on the first inlet velocity set and a preset velocity ratio, it sets a second inlet velocity set corresponding to all inlets of the quenching device, and obtains a third inlet velocity set for the target working area. The third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. Based on the first and third inlet velocity sets, it determines the velocity deviation value. If the velocity deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed within the target working area of ​​the quenching tank for quenching treatment. This system enables the use of a multi-inlet, multi-velocity cooling medium supply method in the quenching device, solving the problem of uneven distribution of the quenching cooling medium flow field, improving the quenching consistency and stability of the workpiece, and enhancing the quenching quality.

[0076] It should be noted that the system embodiments described above are based on the same inventive concept as the method embodiments described above. Therefore, the relevant content of the method embodiments described above is also applicable to the system embodiments described above, and will not be repeated here.

[0077] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of related data must comply with relevant regulations. The acquisition, storage, use and processing of data in the technical solution of this application all comply with the relevant provisions of national laws and regulations.

[0078] Figure 6 A schematic diagram of the hardware structure of the quenching device provided in the embodiments of this application is shown.

[0079] The equipment used in the quenching apparatus may include a processor 301 and a memory 302 storing computer program instructions.

[0080] Specifically, the processor 301 may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement the embodiments of this application.

[0081] Memory 302 may include mass storage for data or instructions. For example, and not limitingly, memory 302 may include a hard disk drive (HDD), floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 302 may include removable or non-removable (or fixed) media. Where appropriate, memory 302 may be internal or external to the integrated gateway disaster recovery device. In a particular embodiment, memory 302 is non-volatile solid-state memory.

[0082] In some embodiments, memory 302 may include read-only memory (ROM), random access memory (RAM), disk storage media device, optical storage media device, flash memory device, electrical, optical, or other physical / tangible memory storage device. Thus, generally, memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of this disclosure.

[0083] The processor 301 reads and executes computer program instructions stored in the memory 302 to implement any of the quenching apparatus usage methods in the above embodiments.

[0084] In one example, the equipment using the quenching apparatus may also include a communication interface 303 and a bus 310. For example, Figure 6 As shown, the processor 301, memory 302, and communication interface 303 are connected through bus 310 and complete communication with each other.

[0085] The communication interface 303 is mainly used to realize communication between various modules, devices, units and / or equipment in the embodiments of this application.

[0086] Bus 310 includes hardware, software, or both, that couples components of the device using the hardening apparatus together. For example, and not limitingly, the bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, bus 310 may include one or more buses. Although specific buses are described and illustrated in embodiments of this application, any suitable bus or interconnect is contemplated herein.

[0087] The equipment using this quenching device can execute the quenching device usage method in the embodiments of this application based on a three-dimensional design model, thereby achieving a combination Figure 1 and Figure 5 The method of using the quenching apparatus and the system described.

[0088] Furthermore, in conjunction with the usage method of the quenching apparatus in the above embodiments, this application embodiment can provide a computer storage medium for implementation. This computer storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement the usage method of any of the quenching apparatuses in the above embodiments.

[0089] It should be clarified that this application is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of this application is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of this application.

[0090] The functional blocks shown in the above block diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this application are programs or code segments used to perform the required tasks. Programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried on a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0091] It should also be noted that the exemplary embodiments mentioned in this application describe methods or systems based on a series of steps or apparatus. However, this application is not limited to the order of the above steps; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0092] The aspects of this disclosure have been described above with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block in the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that these instructions, executable via the processor of the computer or other programmable data processing apparatus, enable the implementation of the functions / actions specified in one or more blocks of the flowchart illustrations and / or block diagrams. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It is also understood that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can also be implemented by special-purpose hardware performing the specified functions or actions, or can be implemented by a combination of special-purpose hardware and computer instructions.

[0093] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. A method of using a quenching device, characterized in that, Applied to a quenching apparatus, the quenching apparatus including a quenching tank, the method of using the quenching apparatus includes: Based on the workpiece to be quenched and the quenching device, a numerical model of the cooling medium flow is constructed. Based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, the first inlet velocity set is determined through the simulation of the flow field distribution. The first inlet velocity set includes the inlet velocities of all inlets of the quenching tank. Based on the first inlet velocity set and a preset velocity ratio value, and setting the second inlet velocity set corresponding to all inlets of the quenching device, a third inlet velocity set for the target working area is obtained, wherein the third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. Based on the first inlet velocity set and the third inlet velocity set, the velocity deviation value is determined; When the flow rate deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed in the target working area of ​​the quenching tank to perform quenching treatment on the workpiece.

2. The method of using the quenching device according to claim 1, characterized in that, Before determining the first inlet velocity set through flow field distribution simulation based on the numerical model of the cooling medium flow and the preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank, the following steps are included: The basic governing equation expression is constructed using the following formula: in, For the inlet velocity vector of all inlets; Given the mass density and kinematic viscosity of the quenching oil, the Navier-Stokes equation expression is constructed based on the mass density and kinematic viscosity using the following formula: in, Let be the mass density, and t be the time t. For Hamiltonian operators, The velocity vector is the flow velocity. For the Laplace operator, For kinematic viscosity, For pressure; With a three-dimensional Cartesian coordinate system in place, the turbulence model expression is constructed based on this system using the following formula: in, For turbulent kinetic energy, In a three-dimensional rectangular coordinate system Flow velocity in the axial direction, In a three-dimensional rectangular coordinate system Coordinates along the axial direction, In a three-dimensional rectangular coordinate system Coordinates along the axial direction, In a three-dimensional rectangular coordinate system Flow velocity in the axial direction, For turbulent viscosity, The first model constant value is set in advance. For turbulent dissipation rate, The second model constant value is set in advance. The pre-set constant values ​​for the third model. For buoyancy turbulent kinetic energy, The turbulent kinetic energy generated by the velocity gradient, The pre-set constant value for the fourth model. The pre-set constant value for the fifth model; The flow field distribution is simulated based on the numerical model of the cooling medium flow and several sets of preset inlet velocity sets to obtain the first inlet velocity set, including: Based on the basic control equation expression, the NS equation expression, the turbulence model expression, the cooling medium flow numerical model, and the preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank, the first inlet velocity set is determined through flow field distribution simulation.

3. The method of using the quenching device according to claim 2, characterized in that, The first inlet velocity set is determined through simulation of the flow field distribution based on the basic control equation expression, the NS equation expression, the turbulence model expression, the cooling medium flow numerical model, and the preset inlet average velocity boundary values ​​corresponding to all inlets of the quenching tank, including: Having obtained the inlet cross-sectional area for each inlet, and based on the inlet cross-sectional area and the preset inlet average velocity boundary value, the following formula is used to construct an expression for the relationship between flow rate and velocity: in, This represents the preset inlet average velocity boundary value corresponding to the nth inlet. Let n be the cross-sectional area of ​​the entrance corresponding to the nth entrance. The inlet volume flow rate corresponding to the nth inlet. This represents the total number of inlets to the quenching tanks. Total inbound traffic, For pump output flow rate, For the pre-acquired pump displacement parameter values, For the pre-acquired pump speed, For actual effective traffic, The volumetric efficiency value is obtained in advance; Based on the basic control equation expression, the NS equation expression, the turbulence model expression, the cooling medium flow numerical model, and the flow rate and velocity relationship expression, the flow field distribution is simulated to obtain the simulated inlet velocity set, wherein the simulated inlet velocity set includes the simulated inlet velocities corresponding to all inlets of the quenching tank; Based on the basic control equation expression, the NS equation expression, the turbulence model expression, and the cooling medium flow numerical model, the flow field distribution is simulated to obtain the simulated inlet velocity set, wherein the simulated inlet velocity set includes the simulated inlet velocities corresponding to all inlets of the quenching tank; If the simulated inlet velocity satisfies the expressions for the residual function and the parameter update equation, the simulated inlet velocity is taken as the first inlet velocity set, wherein the expressions for the residual function and the parameter update equation are: in, Let n be the simulated inlet velocity corresponding to the nth inlet at time t. The measured inlet velocity corresponds to the m-th inlet at time t, which was measured in advance. The weighting coefficient for the s-th monitoring point is set in advance. For the pre-set target threshold, For a pre-set set of steady-state time samples, The objective function value is given by the preset inlet average velocity boundary value of b. The threshold for the pre-set residual function.

4. The method of using the quenching device according to claim 3, characterized in that, The method further includes: Based on the simulated inlet velocity and the measured inlet velocity corresponding to each inlet of the quenching tank, the average residual value is determined; Given that the flow distribution coefficient for the first iteration is set for each inlet of the quenching tank, and the simulated inlet flow velocity does not satisfy the residual function and parameter update equation expression, and the current iteration number is k, the flow distribution coefficient for the kth iteration is updated using the following formula: in, The flow allocation coefficient for the nth inlet in the kth iteration. For the nth entry point The flow allocation coefficient for k iterations For the preset step size, The average residual of the k-th iteration. The sensitivity weight value for the nth input is preset; The preset inlet average velocity boundary value is updated using the following formula to obtain the first... The preset inlet average velocity boundary value for the next iteration is: in, For the nth entry point The preset inlet average velocity boundary value for the next iteration; All the entries corresponding to the first The preset inlet average velocity boundary value of the next iteration is used as the expression for the relationship between flow rate and velocity. , obtained the The expression for the flow rate versus velocity relationship in the next iteration, based on the fundamental governing equation, the Navier-Stokes equation, the turbulence model, the cooling medium flow numerical model, and the first iteration... The expression for the relationship between flow rate and velocity in the next iteration is used to simulate the flow field distribution and obtain the updated simulated inlet velocity set. If the updated simulated inlet velocity set satisfies the expression of the residual function and the parameter update equation, the updated simulated inlet velocity set shall be used as the first inlet velocity set.

5. The method of using the quenching device according to claim 4, characterized in that, The step of obtaining the third inlet velocity set of the target working area, based on the first inlet velocity set and a preset velocity ratio value, and setting a second inlet velocity set corresponding to all inlets of the quenching device, includes: When the first inlet velocity set is multiplied by the preset velocity ratio to obtain the second inlet velocity set corresponding to all inlets of the quenching device, the third inlet velocity set of the target working area is collected by a probe installed in advance.

6. The method of using the quenching device according to claim 5, characterized in that, The step of determining the velocity deviation value based on the first inlet velocity set and the third inlet velocity set includes: Calculate the average of all first inlet velocities in the first inlet velocity set, and use it as the simulated inlet velocity average. Calculate the average of all third inlet velocities in the third inlet velocity set, and use it as the average of the measured inlet velocities; The velocity deviation value is obtained by subtracting the measured average inlet velocity from the simulated average inlet velocity.

7. The method of using the quenching device according to claim 6, characterized in that, The method further includes: If the flow velocity deviation value is greater than the preset deviation threshold, the average measured inlet flow velocity is divided by the average simulated inlet flow velocity to obtain the correction ratio value. Multiply the correction ratio value by the first inlet velocity set to obtain the updated first inlet velocity set; Based on the updated first inlet velocity set and the preset velocity ratio value, and setting the fourth inlet velocity set corresponding to all inlets of the quenching device, the fifth inlet velocity set of the target working area is measured by a carbon rod. Based on the updated first inlet velocity set and the fifth inlet velocity set, the updated velocity deviation value is determined; If the updated flow rate deviation value is less than or equal to a preset deviation threshold, the workpiece to be quenched, heated to a preset temperature, is placed in the target working area of ​​the quenching tank to perform quenching treatment on the workpiece.

8. A system for using a quenching device, characterized in that, It is applied to a quenching device, the quenching device including a quenching tank, and the system for using the quenching device includes: The first inlet velocity set determination module is used to determine the first inlet velocity set by simulation of the flow field distribution based on the numerical model of the cooling medium flow and the preset average velocity boundary values ​​of all inlets of the quenching tank, when a numerical model of the cooling medium flow is constructed based on the workpiece to be quenched and the quenching device. The first inlet velocity set includes the inlet velocities corresponding to all inlets of the quenching tank. The third inlet velocity set acquisition module is used to acquire the third inlet velocity set of the target working area when the second inlet velocity set corresponding to all inlets of the quenching device is set based on the first inlet velocity set and a preset velocity ratio value. The third inlet velocity set is the measured velocity of the target working area obtained by measuring with a carbon rod. The velocity deviation value determination module is used to determine the velocity deviation value based on the first inlet velocity set and the third inlet velocity set; The quenching module is used to place the workpiece to be quenched, heated to a preset temperature, into the target working area of ​​the quenching tank when the flow rate deviation value is less than or equal to a preset deviation threshold, so as to perform quenching treatment on the workpiece to be quenched.

9. A device for using a quenching apparatus, characterized in that, It includes at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform a method of using a quenching apparatus as described in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions for causing a computer to perform a method of using a quenching apparatus as described in any one of claims 1 to 7.

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