Method, device and equipment for determining hydraulic parameters of gas purification equipment

Abstract

The invention provides a method, a device and equipment for determining hydraulic parameters of gas purification equipment. The method comprises the following steps: acquiring inflation flow data, light fraction back pressure data and heavy fraction back pressure data of a gas inlet pipeline; according to the inflation flow data, obtaining pressure data after gas shock wave compression; according to the pressure data after gas shock wave compression, stagnation pressure data after gas isentropic compression is obtained; according to the stagnation pressure intensity data, the light fraction back pressure data and the heavy fraction back pressure data, obtaining an orifice reverse pressure ratio parameter of a light fraction gas receiver and an orifice reverse pressure ratio parameter of a heavy fraction gas receiver; and obtaining the orifice flow parameter of the light fraction gas receiver and the orifice flow parameter of the heavy fraction gas receiver according to the orifice reverse pressure ratio parameter of the light fraction gas receiver and the orifice reverse pressure ratio parameter of the heavy fraction gas receiver. According to the scheme, the change rule of the hydraulic characteristics of the gas purification equipment along with external parameter adjustment can be reflected, and a basis is provided for operation state simulation and performance optimization of the gas purification equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of gas purification equipment, and particularly to a method, device and equipment for determining the hydraulic parameters of a gas purification equipment. Background Art

[0002] When performing gas purification, a high-speed rotating cylinder device is often used for physical purification of gas. This device constructs a dynamic pressure distribution based on a rotating energy field, utilizes the difference in inertial response of substances in the motion field, and through a precisely controlled flow field constraint mechanism, enables gas components with different characteristics to spontaneously migrate in a specific direction, forming a stable material enrichment effect in different regions of the equipment cavity, and ultimately achieving an improvement in the physical purity of the gas composition.

[0003] Specifically, during operation, gas is injected into the high-speed rotating cylinder device through an intake pipe, and gas collection is carried out through a light fraction gas collector and a heavy fraction gas collector; among them, the charging flow rate of the intake pipe, the light fraction back pressure at the outlet of the light fraction gas collector, and the heavy fraction back pressure at the outlet of the heavy fraction gas collector are external parameters of the gas purification equipment; the orifice reverse pressure ratio of the light fraction gas collector, the orifice flow rate of the light fraction gas collector, the orifice reverse pressure ratio of the heavy fraction gas collector, and the orifice flow rate of the heavy fraction gas collector are hydraulic characteristic quantities of the gas purification equipment;

[0004] In order to ensure the separation effect of the gas, it is necessary to determine and study the hydraulic characteristics of the high-speed rotating cylinder device. The hydraulic characteristics of the high-speed rotating cylinder device are affected by changes in external parameters. However, the current method for determining the hydraulic characteristics of gas purification equipment cannot reflect the variation law of the hydraulic characteristics of gas purification equipment with the adjustment of external parameters. Summary of the Invention

[0005] The present invention provides a method, device and equipment for determining the hydraulic parameters of a gas purification equipment, which can reflect the variation law of the hydraulic characteristics of gas purification equipment with the adjustment of external parameters, and provide a basis for simulating the operating state and optimizing the performance of gas purification equipment.

[0006] To solve the above technical problems, the technical solution of the present invention is as follows:

[0007] A method for determining the hydraulic parameters of a gas purification equipment, comprising:

[0008] Obtaining the charging flow rate data of the intake pipe of the gas purification equipment, the light fraction back pressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction back pressure data of the heavy fraction gas collector of the gas purification equipment;

[0009] Obtaining the flow parameters before gas shock compression of the gas purification equipment according to the charging flow rate data of the intake pipe;

[0010] Obtain the pressure data of the gas before shock compression of the gas purification equipment according to the flow parameters of the gas before shock compression;

[0011] Obtain the pressure data of the gas after shock compression of the gas purification equipment according to the pressure data of the gas before shock compression;

[0012] Obtain the stagnation pressure data of the gas after isentropic compression of the gas purification equipment according to the pressure data of the gas after shock compression;

[0013] Obtain the orifice reverse pressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice reverse pressure ratio parameter of the heavy fraction gas collector of the gas purification device according to the stagnation pressure data of the gas after isentropic compression, the light fraction back pressure data of the light fraction gas collector, and the heavy fraction back pressure data of the heavy fraction gas collector;

[0014] Obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device and the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device according to the orifice reverse pressure ratio parameter of the light fraction gas collector and the orifice reverse pressure ratio parameter of the heavy fraction gas collector;

[0015] Optionally, obtain the flow parameters of the gas before shock compression of the gas purification equipment according to the charging flow rate data of the intake pipeline, including:

[0016] According to the charging flow rate data of the intake pipeline, through

[0017]

[0018]

[0019] Obtain the flow parameters of the gas before shock compression of the gas purification equipment;

[0020] Among them, r represents the radial coordinate; z represents the axial coordinate; ρ represents the density of the gas before shock compression; T represents the temperature of the gas before shock compression; u represents the radial component of the velocity of the gas before shock compression; v represents the angular component of the velocity of the gas before shock compression; w represents the axial component of the velocity of the gas before shock compression; E k represents the Ekman number at the side wall of the gas purification equipment, E k =μ / ρ w ωr a 2 , μ is the viscosity coefficient of the gas, ρ w is the pressure at the side wall of the gas purification equipment, ω is the rotational angular velocity of the gas purification equipment, r a is the radius of the gas purification equipment; A represents the dimensionless velocity coefficient, A = Mω 2 r a 2 / 2RT 0 , where M is the molar molecular mass of the gas, R is the gas constant, and T 0 is the average temperature of the side wall of the gas purification equipment; Pr represents the Prandtl number, Pr = μc p / κ, c p is the specific heat at constant pressure of the gas, and κ is the thermal conductivity; ρ 0 represents the density of the gas in the isothermal rigid body state, represents the mass source sink term with the source being the inflation flow rate; D e represents the thermal diffusion term, γ represents the specific heat ratio of the gas.

[0021] Optionally, based on the flow parameters of the gas before shock compression, the pressure data of the gas before shock compression of the gas purification equipment is obtained, including:

[0022] Based on the flow parameters of the gas before shock compression, through

[0023]

[0024] the pressure data of the gas before shock compression of the gas purification equipment is obtained;

[0025] where P represents the pressure of the gas before shock compression.

[0026] Optionally, based on the pressure data of the gas before shock compression, the pressure data of the gas after shock compression of the gas purification equipment is obtained, including:

[0027] Based on the pressure data of the gas before shock compression, through

[0028]

[0029] the pressure data of the gas after shock compression of the gas purification equipment is obtained;

[0030] where P 2 represents the pressure of the gas after shock compression; P represents the pressure of the gas before shock compression; γ represents the specific heat ratio of the gas; Ma represents the Mach number of the gas before shock compression; v represents the angular component of the gas velocity; R represents the gas constant; T represents the temperature of the gas before shock compression.

[0031] Optionally, based on the pressure data of the gas after shock compression, the stagnation pressure data of the gas after isentropic compression of the gas purification equipment is obtained, including:

[0032] Based on the pressure data of the gas after shock compression, through

[0033]

[0034] Obtain the stagnation pressure data after the isentropic compression of the gas in the gas purification equipment;

[0035] Among them, P 3 represents the stagnation pressure after the isentropic compression of the gas; P 2 represents the pressure after the shock compression of the gas; γ represents the specific heat ratio of the gas; Ma 2 represents the Mach number after the shock compression of the gas; Ma represents the Mach number before the shock compression of the gas; v represents the angular component of the velocity before the shock compression of the gas; R represents the gas constant; T represents the temperature before the shock compression of the gas.

[0036] Optionally, according to the stagnation pressure data after the isentropic compression of the gas, the light fraction back pressure data of the light fraction gas collector, and the heavy fraction back pressure data of the heavy fraction gas collector, obtain the orifice reverse pressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice reverse pressure ratio parameter of the heavy fraction gas collector of the gas purification device, including:

[0037] Determine the orifice reverse pressure ratio parameter of the light fraction gas collector of the gas purification device according to the stagnation pressure data after the isentropic compression of the gas, the light fraction back pressure data of the light fraction gas collector, and the sound speed condition;

[0038] Determine the orifice reverse pressure ratio parameter of the heavy fraction gas collector of the gas purification device according to the stagnation pressure data after the isentropic compression of the gas, the heavy fraction back pressure data of the heavy fraction gas collector, and the sound speed condition.

[0039] Optionally, according to the orifice reverse pressure ratio parameter of the light fraction gas collector and the orifice reverse pressure ratio parameter of the heavy fraction gas collector, obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device and the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device, including:

[0040] According to the orifice reverse pressure ratio parameter of the light fraction gas collector, through

[0041]

[0042] Obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device;

[0043] Among them, m 轻 represents the orifice flow rate of the light fraction gas collector; ρ 轻 * represents the orifice upstream density of the light fraction gas collector; a 轻 * represents the orifice upstream sound speed of the light fraction gas collector; S 轻 represents the orifice area of the light fraction gas collector; P 轻 * represents the orifice reverse pressure ratio of the light fraction gas collector; γ represents the specific heat ratio of the gas;

[0044] Based on the orifice backpressure ratio parameter of the heavy fraction gas collector, through

[0045]

[0046] obtain the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device;

[0047] wherein, m 重 represents the orifice flow rate of the heavy fraction gas collector; ρ 重 * represents the density upstream of the orifice of the heavy fraction gas collector; a 重 * represents the speed of sound upstream of the orifice of the heavy fraction gas collector; S 重 represents the orifice area of the heavy fraction gas collector; P 重 * represents the orifice backpressure ratio of the heavy fraction gas collector.

[0048] The present invention also provides a device for determining the hydraulic parameters of a gas purification equipment, including:

[0049] an acquisition module, configured to acquire the charging flow rate data of the intake pipeline of the gas purification equipment, the light fraction backpressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction backpressure data of the heavy fraction gas collector of the gas purification equipment;

[0050] a processing module, configured to obtain the flow parameters before gas shock compression of the gas purification equipment according to the charging flow rate data of the intake pipeline; obtain the pressure data before gas shock compression of the gas purification equipment according to the flow parameters before gas shock compression; obtain the pressure data after gas shock compression of the gas purification equipment according to the pressure data before gas shock compression; obtain the stagnation pressure data after isentropic compression of the gas of the gas purification equipment according to the pressure data after gas shock compression; obtain the orifice backpressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice backpressure ratio parameter of the heavy fraction gas collector of the gas purification device according to the stagnation pressure data after isentropic compression of the gas, the light fraction backpressure data of the light fraction gas collector, and the heavy fraction backpressure data of the heavy fraction gas collector; and obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device and the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device according to the orifice backpressure ratio parameter of the light fraction gas collector and the orifice backpressure ratio parameter of the heavy fraction gas collector.

[0051] The present invention also provides a computing device, including: a processor and a memory storing a computer program, and when the computer program is run by the processor, it executes the method as described above.

[0052] The present invention also provides a computer-readable storage medium storing instructions, which, when running on a computer, cause the computer to execute the method described above.

[0053] The above solution of the present invention has at least the following beneficial effects:

[0054] The above solution of the present invention obtains the inflation flow rate data of the intake pipeline of the gas purification equipment, the light fraction back pressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction back pressure data of the heavy fraction gas collector of the gas purification equipment; according to the inflation flow rate data of the intake pipeline, the flow parameters before the gas shock compression of the gas purification equipment are obtained; according to the flow parameters before the gas shock compression, the pressure data before the gas shock compression of the gas purification equipment are obtained; according to the pressure data before the gas shock compression, the pressure data after the gas shock compression of the gas purification equipment are obtained; according to the pressure data after the gas shock compression, the stagnation pressure data after the isentropic compression of the gas purification equipment are obtained; according to the stagnation pressure data after the isentropic compression of the gas, the light fraction back pressure data of the light fraction gas collector, and the heavy fraction back pressure data of the heavy fraction gas collector, the orifice reverse pressure ratio parameters of the light fraction gas collector of the gas purification device and the orifice reverse pressure ratio parameters of the heavy fraction gas collector of the gas purification device are obtained; according to the orifice reverse pressure ratio parameters of the light fraction gas collector and the orifice reverse pressure ratio parameters of the heavy fraction gas collector, the orifice flow rate parameters of the light fraction gas collector of the gas purification device and the orifice flow rate parameters of the heavy fraction gas collector of the gas purification device are obtained; it can reflect the variation law of the hydraulic characteristics of the gas purification equipment with the adjustment of external parameters, and provide a basis for the operation state simulation and performance optimization of the gas purification equipment. Description of the Drawings

[0055] Figure 1 is a flowchart of a method for determining the hydraulic parameters of the gas purification equipment provided by an embodiment of the present invention;

[0056] Figure 2 is a module diagram of a device for determining the hydraulic parameters of the gas purification equipment provided by an embodiment of the present invention;

[0057] Figure 3 is a schematic structural diagram of the gas purification equipment provided by an embodiment of the present invention;

[0058] Figure 4 is a schematic diagram of the shock wave process inside the gas purification equipment provided by an embodiment of the present invention;

[0059] Figure 5 is a schematic diagram of the isentropic compression process inside the gas purification equipment provided by an embodiment of the present invention;

[0060] Figure 6It is a schematic diagram of the small-hole outflow process inside the gas purification equipment provided by the embodiment of the present invention;

[0061] Figure 7 It is a flowchart of the determination process of the hydraulic parameters of the gas purification equipment provided by the embodiment of the present invention;

[0062] Figure 8 It is a schematic diagram of the change of the orifice backpressure ratio of the heavy fraction gas collector with the change of the heavy fraction backpressure;

[0063] Figure 9 It is a schematic diagram of the change of the orifice backpressure ratio of the light fraction gas collector with the change of the light fraction backpressure.

[0064] The description of the reference numerals is as follows:

[0065] 31, intake pipeline; 32, light fraction gas collector; 33, light fraction partition plate; 34, heavy fraction gas collector; 35, heavy fraction partition plate. Detailed implementation manners

[0066] Hereinafter, the exemplary embodiments of the present invention will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be completely conveyed to those skilled in the art.

[0067] As Figure 1 shown, the embodiment of the present invention proposes a method for determining the hydraulic parameters of a gas purification equipment, including:

[0068] Step 11, obtaining the inflation flow rate data of the intake pipeline of the gas purification equipment, the light fraction backpressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction backpressure data of the heavy fraction gas collector of the gas purification equipment;

[0069] Step 12, obtaining the flow parameters before the gas shock compression of the gas purification equipment according to the inflation flow rate data of the intake pipeline;

[0070] Step 13, obtaining the pressure data before the gas shock compression of the gas purification equipment according to the flow parameters before the gas shock compression;

[0071] Step 14, obtaining the pressure data after the gas shock compression of the gas purification equipment according to the pressure data before the gas shock compression;

[0072] Step 15, obtaining the stagnation pressure data after the isentropic compression of the gas of the gas purification equipment according to the pressure data after the gas shock compression;

[0073] Step 16: Obtain the orifice back-pressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice back-pressure ratio parameter of the heavy fraction gas collector of the gas purification device based on the stagnation pressure data after the isentropic compression of the gas, the light fraction back-pressure data of the light fraction gas collector, and the heavy fraction back-pressure data of the heavy fraction gas collector.

[0074] Step 17: Obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device and the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device based on the orifice back-pressure ratio parameter of the light fraction gas collector and the orifice back-pressure ratio parameter of the heavy fraction gas collector.

[0075] In this embodiment, by obtaining the charging flow rate data of the intake pipeline of the gas purification equipment, the light fraction back-pressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction back-pressure data of the heavy fraction gas collector of the gas purification equipment; based on the charging flow rate data of the intake pipeline, obtain the flow parameters of the gas before the shock wave compression of the gas purification equipment; based on the flow parameters of the gas before the shock wave compression, obtain the pressure data of the gas before the shock wave compression of the gas purification equipment; based on the pressure data of the gas before the shock wave compression, obtain the pressure data of the gas after the shock wave compression of the gas purification equipment; based on the pressure data of the gas after the shock wave compression, obtain the stagnation pressure data of the gas after the isentropic compression of the gas purification equipment; based on the stagnation pressure data of the gas after the isentropic compression, the light fraction back-pressure data of the light fraction gas collector, and the heavy fraction back-pressure data of the heavy fraction gas collector, obtain the orifice back-pressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice back-pressure ratio parameter of the heavy fraction gas collector of the gas purification device; based on the orifice back-pressure ratio parameter of the light fraction gas collector and the orifice back-pressure ratio parameter of the heavy fraction gas collector, obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device and the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device; it can reflect the variation law of the hydraulic characteristics of the gas purification equipment with the adjustment of external parameters, and provide a basis for the operation state simulation and performance optimization of the gas purification equipment.

[0076] In an alternative embodiment of the present invention, step 12 includes:

[0077] Step 121: Based on the charging flow rate data of the intake pipeline, through

[0078]

[0079]

[0080] Obtain the flow parameters of the gas before the shock wave compression of the gas purification equipment.

[0081] Among them, r represents the radial coordinate; z represents the axial coordinate; ρ represents the density before gas shock compression; T represents the temperature before gas shock compression; u represents the radial component of the velocity before gas shock compression; v represents the angular component of the velocity before gas shock compression; w represents the axial component of the velocity before gas shock compression; E k represents the Ekman number at the side wall of the gas purification equipment, E k = μ / ρ w ωr a 2 , μ is the viscosity coefficient of the gas, ρ w is the pressure at the side wall of the gas purification equipment, ω is the rotational angular velocity of the gas purification equipment, r a is the radius of the gas purification equipment; A represents the dimensionless velocity coefficient, A = MΩ 2 r a 2 / 2RT 0 , M is the molar molecular mass of the gas, R is the gas constant, T 0 is the average temperature of the side wall of the gas purification equipment; Pr represents the Prandtl number, Pr = μc p / κ, c p is the specific heat at constant pressure of the gas, κ is the thermal conductivity coefficient; ρ 0 represents the density of the gas in the isothermal rigid body state, represents the mass source sink term with the source being the charging flow rate; D e represents the thermal diffusion term, γ represents the specific heat ratio of the gas.

[0082] In this embodiment, the gas enters the gas purification equipment through the intake pipe 31. The gas contacts the light fraction separator 33 or the heavy fraction separator 35 to form a shock compression process. After shock compression, parameters such as the pressure, density, angular component of the velocity, and temperature of the gas will change. In order to obtain the parameters of the gas after shock compression, it is first necessary to obtain the flow parameters of the gas before shock compression; through the charging flow rate data of the intake pipe and the above formulas, the flow parameters such as the density, angular component of the velocity, and temperature of the gas before shock compression can be obtained, so as to facilitate obtaining the gas-related parameters in the subsequent process.

[0083] In an alternative embodiment of the present invention, step 13 includes:

[0084] Step 131, according to the flow parameters of the gas before shock compression, through

[0085]

[0086] obtain the pressure data of the gas before shock compression in the gas purification equipment;

[0087] Among them, P represents the pressure before the gas shock compression.

[0088] In this embodiment, the pressure before the gas shock compression is mainly determined by the flow parameters before the gas shock compression. Through the flow parameters before the gas shock compression and the above formula, the pressure data before the gas shock compression of the gas purification equipment can be obtained, which is convenient for obtaining the gas-related parameters in the subsequent process.

[0089] In an alternative embodiment of the present invention, step 14 includes:

[0090] Step 141, according to the pressure data before the gas shock compression, through

[0091]

[0092] obtain the pressure data after the gas shock compression of the gas purification equipment;

[0093] Among them, P 2 represents the pressure after the gas shock compression; P represents the pressure before the gas shock compression; γ represents the specific heat ratio of the gas; Ma represents the Mach number before the gas shock compression; v represents the angular component of the gas velocity; R represents the gas constant; T represents the temperature before the gas shock compression.

[0094] In this embodiment, during the shock compression process, the relevant flow parameters and pressure of the gas will change. To obtain the gas-related parameters in the subsequent process, through the pressure data before the gas shock compression and the above formula, the pressure data after the gas shock compression of the gas purification equipment is obtained.

[0095] In an alternative embodiment of the present invention, step 15 includes:

[0096] Step 151, according to the pressure data after the gas shock compression, through

[0097]

[0098] obtain the stagnation pressure data after the isentropic compression of the gas of the gas purification equipment;

[0099] Among them, P 3 represents the stagnation pressure after the isentropic compression of the gas; P 2 represents the pressure after the gas shock compression; γ represents the specific heat ratio of the gas; Ma 2 represents the Mach number after the gas shock compression; Ma represents the Mach number before the gas shock compression; v represents the angular component of the velocity before the gas shock compression; R represents the gas constant; T represents the temperature before the gas shock compression.

[0100] In this embodiment, after the gas compressed by the shock wave undergoes isentropic compression, its flow parameters and pressure will change. Based on the pressure data after the gas is compressed by the shock wave and the above formula, the stagnation pressure data after the isentropic compression of the gas in the gas purification equipment is obtained, which is convenient for obtaining the orifice backpressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice backpressure ratio parameter of the heavy fraction gas collector of the gas purification device subsequently.

[0101] In an alternative embodiment of the present invention, step 16 includes:

[0102] Step 161, determining the orifice backpressure ratio parameter of the light fraction gas collector of the gas purification device according to the stagnation pressure data after the isentropic compression of the gas, the light fraction backpressure data of the light fraction gas collector, and the sonic velocity condition;

[0103] Step 162, determining the orifice backpressure ratio parameter of the heavy fraction gas collector of the gas purification device according to the stagnation pressure data after the isentropic compression of the gas, the heavy fraction backpressure data of the heavy fraction gas collector, and the sonic velocity condition.

[0104] In this embodiment, the orifice backpressure ratio parameter of the light fraction gas collector of the gas purification device is determined according to the stagnation pressure data after the isentropic compression of the gas, the light fraction backpressure data of the light fraction gas collector, and the sonic velocity condition; specifically:

[0105] When the stagnation pressure after the isentropic compression of the gas is greater than the light fraction backpressure of the light fraction gas collector and satisfies the sonic velocity condition, that is

[0106] ρ 轻 * =-ρ 3 , a 轻 * =a 3 ;

[0107] When the stagnation pressure after the isentropic compression of the gas is greater than the light fraction backpressure of the light fraction gas collector and does not satisfy the sonic velocity condition, that is

[0108] ρ 轻 * =-ρ 3 , a 轻 * =a 3 ;

[0109] When the stagnation pressure after the isentropic compression of the gas is less than the light fraction backpressure of the light fraction gas collector and satisfies the sonic velocity condition, that is

[0110] ρ轻 * = ρ 3 , a 轻 * = a 3 ;

[0111] When the stagnation pressure after the isentropic compression of the gas is less than the light fraction back pressure of the light fraction collector and does not satisfy the sonic condition, i.e.,

[0112] ρ 轻 * = ρ 3 , a 轻 * = a 3 ;

[0113] Among them, P 3 represents the stagnation pressure after the isentropic compression of the gas; P P represents the light fraction back pressure of the light fraction collector; γ represents the specific heat ratio of the gas; P 轻 * represents the orifice reverse pressure ratio of the light fraction collector; ρ 轻 * represents the orifice upstream density of the light fraction collector; a 轻 * represents the orifice upstream sonic velocity of the light fraction collector; ρ 3 represents the density after the isentropic compression of the gas; a 3 represents the sonic velocity after the isentropic compression of the gas;

[0114] According to the stagnation pressure data after the isentropic compression of the gas, the heavy fraction back pressure data of the heavy fraction collector and the sonic condition, determine the orifice reverse pressure ratio parameter of the heavy fraction collector of the gas purification device; specifically:

[0115] When the stagnation pressure after the isentropic compression of the gas is greater than the heavy fraction back pressure of the heavy fraction collector and satisfies the sonic condition, i.e.,

[0116] ρ 重 * = -ρ 3 , a 重 * = a 3 ;

[0117] When the stagnation pressure after the isentropic compression of the gas is greater than the heavy fraction back pressure of the heavy fraction collector and does not satisfy the sonic condition, i.e.,

[0118] ρ 重 *= -ρ 3 , a 重 * = a 3 ;

[0119] When the stagnation pressure after the isentropic compression of the gas is less than the heavy fraction back pressure of the heavy fraction gas collector and satisfies the sonic condition, i.e.,

[0120] ρ 重 * = ρ 3 , a 重 * = a 3 ;

[0121] When the stagnation pressure after the isentropic compression of the gas is less than the heavy fraction back pressure of the heavy fraction gas collector and does not satisfy the sonic condition, i.e.,

[0122] ρ 重 * = ρ 3 , a 重 * = a 3 ;

[0123] Among them, P w represents the heavy fraction back pressure of the heavy fraction gas collector; P 重 * represents the orifice back pressure ratio of the heavy fraction gas collector; ρ 重 * represents the density upstream of the orifice of the heavy fraction gas collector; a 重 * represents the sonic velocity upstream of the orifice of the heavy fraction gas collector;

[0124] Among them, by: ρ 3 is obtained;

[0125] By: a 3 is obtained;

[0126] Among them, P 2 represents the pressure after the shock compression of the gas; ρ 2 represents the density after the shock compression of the gas; ρ represents the density before the shock compression of the gas; Ma represents the Mach number before the shock compression of the gas; Ma 2 represents the Mach number after the shock compression of the gas; a 2 represents the sonic velocity after the shock compression of the gas; v 2represents the angular component of the velocity after gas shock compression; v represents the angular component of the velocity before gas shock compression; R represents the gas constant; T represents the temperature before gas shock compression.

[0127] In an alternative embodiment of the present invention, step 17 includes:

[0128] Step 171, according to the orifice backpressure ratio parameter of the light fraction gas collector, through

[0129]

[0130] obtain the orifice flow parameter of the light fraction gas collector of the gas purification device;

[0131] Wherein, m 轻 represents the orifice flow of the light fraction gas collector; ρ 轻 * represents the upstream density of the orifice of the light fraction gas collector; a 轻 * represents the upstream sound velocity of the orifice of the light fraction gas collector; S 轻 represents the orifice area of the light fraction gas collector; P 轻 * represents the orifice backpressure ratio of the light fraction gas collector; γ represents the specific heat ratio of the gas;

[0132] Step 172, according to the orifice backpressure ratio parameter of the heavy fraction gas collector, through

[0133]

[0134] obtain the orifice flow parameter of the heavy fraction gas collector of the gas purification device;

[0135] Wherein, m 重 represents the orifice flow of the heavy fraction gas collector; ρ 重 * represents the upstream density of the orifice of the heavy fraction gas collector; a 重 * represents the upstream sound velocity of the orifice of the heavy fraction gas collector; S 重 represents the orifice area of the heavy fraction gas collector; P 重 * represents the orifice backpressure ratio of the heavy fraction gas collector.

[0136] In this embodiment, when the orifice backpressure ratio satisfies the sonic condition, the orifice flow rate is only affected by the upstream pressure. When the orifice backpressure ratio does not satisfy the sonic condition, the orifice flow rate is jointly regulated by the upstream and downstream pressures. Therefore, after obtaining the orifice backpressure ratio parameters of the light fraction gas collector of the gas purification device and the orifice backpressure ratio parameters of the heavy fraction gas collector of the gas purification device through the stagnation pressure data after the isentropic compression of the gas, the light fraction backpressure data of the light fraction gas collector, and the heavy fraction backpressure data of the heavy fraction gas collector, according to the orifice backpressure ratio parameters of the light fraction gas collector and the orifice backpressure ratio parameters of the heavy fraction gas collector, and in combination with the above formula, the orifice flow rate parameters of the light fraction gas collector of the gas purification device and the orifice flow rate parameters of the heavy fraction gas collector of the gas purification device are obtained.

[0137] Determination process of the hydraulic parameters of the gas purification equipment:

[0138] S1. Obtain the charging flow rate data of the intake pipeline of the gas purification equipment, the light fraction backpressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction backpressure data of the heavy fraction gas collector of the gas purification equipment;

[0139] S2. According to the charging flow rate data of the intake pipeline, through

[0140]

[0141]

[0142] Obtain the flow parameters before the gas shock compression of the gas purification equipment;

[0143] Among them, r represents the radial coordinate; z represents the axial coordinate; ρ represents the density before the gas shock compression; T represents the temperature before the gas shock compression; u represents the radial component of the velocity before the gas shock compression; v represents the angular component of the velocity before the gas shock compression; w represents the axial component of the velocity before the gas shock compression; E k represents the Ekman number at the side wall of the gas purification equipment, E k = μ / ρ w ωr a 2 , μ is the viscosity coefficient of the gas, ρ w is the pressure at the side wall of the gas purification equipment, ω is the rotational angular velocity of the gas purification equipment, r a is the radius of the gas purification equipment; A represents the dimensionless velocity coefficient, A = MΩ 2 r a 2 *2RT 0 , M is the molar molecular mass of the gas, R is the gas constant, T 0 is the average temperature of the side wall of the gas purification equipment; Pr represents the Prandtl number, Pr = μcp / κ, c p is the specific heat at constant pressure of the gas, κ is the thermal conductivity; ρ 0 represents the density of the gas in the isothermal rigid body state, represents the mass source-sink term with the source being the inflation flow rate; D e represents the thermal diffusion term, γ represents the specific heat ratio of the gas;

[0144] S3. According to the flow parameters before the gas shock compression, through

[0145]

[0146] obtain the pressure data of the gas before the gas shock compression of the gas purification equipment;

[0147] wherein, P represents the pressure before the gas shock compression; ρ represents the density before the gas shock compression; R represents the gas constant; T represents the temperature before the gas shock compression; M represents the molar mass of the gas;

[0148] S4. According to the pressure data of the gas before the gas shock compression, through

[0149]

[0150] obtain the pressure data of the gas after the gas shock compression of the gas purification equipment;

[0151] wherein, P 2 represents the pressure after the gas shock compression; P represents the pressure before the gas shock compression; γ represents the specific heat ratio of the gas; Ma represents the Mach number before the gas shock compression; v represents the angular component of the gas velocity; R represents the gas constant; T represents the temperature before the gas shock compression;

[0152] S5. According to the pressure data of the gas after the gas shock compression, through

[0153]

[0154] obtain the stagnation pressure data of the gas after the isentropic compression of the gas purification equipment;

[0155] wherein, P 3 represents the stagnation pressure of the gas after the isentropic compression; P 2 represents the pressure after the gas shock compression; γ represents the specific heat ratio of the gas; Ma 2 represents the Mach number after the gas shock compression; Ma represents the Mach number before the gas shock compression; v represents the angular component of the velocity before the gas shock compression; R represents the gas constant; T represents the temperature before the gas shock compression;

[0156] S6. Determine the orifice back-pressure ratio parameter of the light fraction gas collector of the gas purification device according to the stagnation pressure data after the isentropic compression of the gas, the light fraction back-pressure data of the light fraction gas collector, and the sonic velocity condition. Specifically:

[0157] When the stagnation pressure after the isentropic compression of the gas is greater than the light fraction back-pressure of the light fraction gas collector and satisfies the sonic velocity condition, that is

[0158] ρ 轻 * =-ρ 3 , a 轻 * =a 3 ;

[0159] When the stagnation pressure after the isentropic compression of the gas is greater than the light fraction back-pressure of the light fraction gas collector and does not satisfy the sonic velocity condition, that is

[0160] ρ 轻 * =-ρ 3 , a 轻 * =a 3 ;

[0161] When the stagnation pressure after the isentropic compression of the gas is less than the light fraction back-pressure of the light fraction gas collector and satisfies the sonic velocity condition, that is

[0162] ρ 轻 * =ρ 3 , a 轻 * =a 3 ;

[0163] When the stagnation pressure after the isentropic compression of the gas is less than the light fraction back-pressure of the light fraction gas collector and does not satisfy the sonic velocity condition, that is

[0164] ρ 轻 * =ρ 3 , a 轻 * =a 3 ;

[0165] Among them, P 3 represents the stagnation pressure after the isentropic compression of the gas; P P represents the light fraction back-pressure of the light fraction gas collector; γ represents the specific heat ratio of the gas; P 轻 *Represents the orifice backpressure ratio of the light fraction gas collector; ρ 轻 * Represents the density upstream of the orifice of the light fraction gas collector; a 轻 * Represents the speed of sound upstream of the orifice of the light fraction gas collector; ρ 3 Represents the density of the gas after isentropic compression; a 3 Represents the speed of sound of the gas after isentropic compression;

[0166] Determine the orifice backpressure ratio parameter of the heavy fraction gas collector of the gas purification device according to the stagnation pressure data of the gas after isentropic compression, the heavy fraction backpressure data of the heavy fraction gas collector and the speed of sound condition; Specifically:

[0167] When the stagnation pressure of the gas after isentropic compression is greater than the heavy fraction backpressure of the heavy fraction gas collector and satisfies the speed of sound condition, that is

[0168] ρ 重 * =-ρ 3 , a 重 * =a 3 ;

[0169] When the stagnation pressure of the gas after isentropic compression is greater than the heavy fraction backpressure of the heavy fraction gas collector and does not satisfy the speed of sound condition, that is

[0170] ρ 重 * =-ρ 3 , a 重 * =a 3 ;

[0171] When the stagnation pressure of the gas after isentropic compression is less than the heavy fraction backpressure of the heavy fraction gas collector and satisfies the speed of sound condition, that is

[0172] ρ 重 * =ρ 3 , a 重 * =a 3 ;

[0173] When the stagnation pressure of the gas after isentropic compression is less than the heavy fraction backpressure of the heavy fraction gas collector and does not satisfy the speed of sound condition, that is

[0174] ρ 重 * =ρ3 , a 重 * = a 3 ;

[0175] Among them, P w represents the back pressure of the heavy fraction gas collector; P 重 * represents the orifice back pressure ratio of the heavy fraction gas collector; ρ 重 * represents the density upstream of the orifice of the heavy fraction gas collector; a 重 * represents the speed of sound upstream of the orifice of the heavy fraction gas collector;

[0176] Among them, by: ρ is obtained 3 ;

[0177] By: a is obtained 3 ;

[0178] Among them, P 2 represents the pressure after gas shock compression; ρ 2 represents the density after gas shock compression; ρ represents the density before gas shock compression; Ma represents the Mach number before gas shock compression; Ma 2 represents the Mach number after gas shock compression; a 2 represents the speed of sound after gas shock compression; v 2 represents the angular component of the velocity after gas shock compression; v represents the angular component of the velocity before gas shock compression; R represents the gas constant; T represents the temperature before gas shock compression;

[0179] S7. According to the orifice back pressure ratio parameter of the light fraction gas collector, through

[0180]

[0181] the orifice flow parameter of the light fraction gas collector of the gas purification device is obtained;

[0182] Among them, m 轻 represents the orifice flow rate of the light fraction gas collector; ρ 轻 * represents the density upstream of the orifice of the light fraction gas collector; a 轻 * represents the speed of sound upstream of the orifice of the light fraction gas collector; S 轻 represents the orifice area of the light fraction gas collector; P 轻 * represents the orifice back pressure ratio of the light fraction gas collector; γ represents the specific heat ratio of the gas;

[0183] According to the orifice backpressure ratio parameter of the heavy fraction gas collector, through

[0184]

[0185] obtain the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device;

[0186] wherein, m 重 represents the orifice flow rate of the heavy fraction gas collector; ρ 重 * represents the upstream density of the orifice of the heavy fraction gas collector; a 重 * represents the upstream sound speed of the orifice of the heavy fraction gas collector; S 重 represents the orifice area of the heavy fraction gas collector; P 重 * represents the orifice backpressure ratio of the heavy fraction gas collector;

[0187] Through the above process, the variation law of the hydraulic characteristics of the gas purification equipment with the adjustment of external parameters can be reflected, providing a basis for the operation state simulation and performance optimization of the gas purification equipment.

[0188] Such as Figure 3As shown in the figure, it is a schematic structural diagram of a gas purification equipment. Among them, gas enters the interior of the gas purification equipment through the intake pipeline 31. The high-speed rotating cylinder of the gas purification equipment rotates, constructs a dynamic pressure distribution by using the rotating energy field, and makes the gas components with different characteristics migrate spontaneously along a specific direction by using the inertia response difference of substances in the motion field, forming a stable material enrichment effect in different regions of the equipment cavity, and finally realizing the physical purity improvement of the gas components. The separated gases are discharged from the light fraction gas collector 32 and the heavy fraction gas collector 34 respectively; during the gas discharge process, the gas interacts with the light fraction gas collector 32 or the heavy fraction gas collector 34 to form a shock wave layer for shock wave compression; the gas compressed by the shock wave reaches the inner ports of the light fraction gas collector 32 and the heavy fraction gas collector 34 after isentropic compression and is discharged through the small hole outflow process; the external parameters of the gas purification equipment refer to: the gas filling flow rate of the intake pipeline, the light fraction back pressure at the outer port of the light fraction gas collector, and the heavy fraction back pressure at the outer port of the heavy fraction gas collector; the hydrodynamic parameters of the gas purification equipment refer to: the orifice reverse pressure ratio at the inner port of the light fraction gas collector, the orifice reverse pressure ratio at the outer port of the heavy fraction gas collector, the orifice flow rate of the light fraction gas collector, and the orifice flow rate of the heavy fraction gas collector; among them, the orifice reverse pressure ratio at the inner port of the light fraction gas collector is the ratio of the stagnation pressure to the light fraction back pressure, and the orifice reverse pressure ratio at the outer port of the heavy fraction gas collector is the ratio of the stagnation pressure to the heavy fraction back pressure; the stagnation pressure is the pressure of the gas after isentropic compression; the purpose of the present invention is to reflect the changes in the orifice reverse pressure ratio of the light fraction gas collector, the orifice reverse pressure ratio of the heavy fraction gas collector, the orifice flow rate of the light fraction gas collector, and the orifice flow rate of the heavy fraction gas collector under the conditions of changes in the gas filling flow rate, the light fraction back pressure, and the heavy fraction back pressure.

[0189] The following combines Figures 3 to 9 to illustrate the specific implementation process of the above embodiments of the present invention:

[0190] As Figure 7 shown, first, obtain the external parameter data, including the gas filling flow rate data of the intake pipeline of the gas purification equipment, the light fraction back pressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction back pressure data of the heavy fraction gas collector of the gas purification equipment.

[0191] According to the external parameter data, obtain the stagnation pressure data. In this process, the gas will undergo shock wave compression and isentropic compression in the gas purification equipment, and the pressure of the gas after isentropic compression is the stagnation pressure; after the gas undergoes shock wave compression and isentropic compression, its relevant parameters will change. In order to obtain the stagnation pressure, it is necessary to obtain the relevant parameters before the gas shock wave compression; by combining the gas filling flow rate data of the intake pipeline with the non-linear hydrodynamic equations, the flow parameters before the gas shock wave compression and the pressure before the gas shock wave compression can be obtained.

[0192] As Figure 4For the shock process shown, the gas shock compression process can be regarded as a local one-dimensional problem. Additionally, to simplify the physical process of gas collection, the shock wave is uniformly approximated as a normal shock wave. According to the normal shock R-H relation, the flow parameters after shock compression and those before compression have the following relationships:

[0193]

[0194] where, v 2 represents the angular component of the velocity of the gas after shock compression; v represents the angular component of the velocity of the gas before shock compression; P 2 represents the pressure of the gas after shock compression; P represents the pressure of the gas before shock compression; ρ 2 represents the density of the gas after shock compression; ρ represents the density of the gas before shock compression; T 2 represents the temperature of the gas after shock compression; T represents the temperature of the gas before shock compression; Ma represents the Mach number of the gas before shock compression; Ma 2 represents the Mach number of the gas after shock compression; a represents the speed of sound of the gas before shock compression; R represents the gas constant; γ represents the specific heat ratio of the gas;

[0195] As Figure 5 shown in the isentropic compression process, after shock compression, the gas experiences a process of isentropic deceleration due to being blocked during the process of entering the inlets of the light fraction gas collector 32 and the heavy fraction gas collector 34. The velocity of the gas drops to a very low level, and the stagnation pressure of the gas can be used to approximately represent the inlet pressure of the gas collector. From the isentropic compression process, we know that:

[0196]

[0197] where, P 3 represents the stagnation pressure of the gas after isentropic compression; ρ 3 represents the density of the gas after isentropic compression; T 3 represents the temperature of the gas after isentropic compression; a 3 represents the speed of sound of the gas after isentropic compression;

[0198] By comparing the magnitude relationship between the stagnation pressure and the back pressure of the light fraction or the heavy fraction, and the speed of sound condition, the orifice back pressure ratio of the light fraction gas collector or the heavy fraction gas collector is determined:

[0199] When the stagnation pressure is greater than the back pressure of the light fraction or the heavy fraction and satisfies the speed of sound condition, that is ρ * =-ρ 3 , a * =a 3 ;

[0200] When the stagnation pressure is greater than the back pressure of the light fraction or the back pressure of the heavy fraction and the sonic condition is not satisfied, i.e., ρ * =-ρ 3 , a * =a 3 ;

[0201] When the stagnation pressure is less than the back pressure of the light fraction or the back pressure of the heavy fraction and the sonic condition is satisfied, i.e., ρ * =ρ 3 , a * =a 3 ;

[0202] When the stagnation pressure is less than the back pressure of the light fraction or the back pressure of the heavy fraction and the sonic condition is not satisfied, i.e., ρ * =ρ 3 , a * =a 3 ;

[0203] wherein, P * represents the orifice back pressure ratio, which includes the orifice back pressure ratio of the light fraction gas collector and the orifice back pressure ratio of the heavy fraction gas collector; P W / P represents the back pressure of the heavy fraction of the heavy fraction gas collector or the back pressure of the light fraction of the light fraction gas collector; ρ * represents the density upstream of the orifice, which includes the density upstream of the orifice of the heavy fraction gas collector and the density upstream of the orifice of the light fraction gas collector; a * represents the sonic velocity upstream of the orifice, which includes the sonic velocity upstream of the orifice of the heavy fraction gas collector and the sonic velocity upstream of the orifice of the light fraction gas collector;

[0204] As Figure 6 shown in the small orifice outflow process, the process of the fluid at the gas collection inlet passing through the small orifice at the material taking port to the pressure measurement point is similar to the small orifice outflow. It can be known from gas dynamics that when the orifice back pressure ratio satisfies the sonic condition, the orifice flow rate is only affected by the upstream pressure, and when the orifice back pressure ratio does not satisfy the sonic condition, the orifice flow rate is jointly regulated by the upstream and downstream pressures; the orifice flow rate is expressed by the following formula:

[0205]

[0206] wherein, m represents the orifice flow rate, which includes the orifice flow rate of the heavy fraction gas collector and the orifice flow rate of the light fraction gas collector; S represents the orifice area, which includes the orifice area of the heavy fraction gas collector and the orifice area of the light fraction gas collector;

[0207] The orifice reverse pressure ratio of the light fraction gas collector, the orifice reverse pressure ratio of the heavy fraction gas collector, the orifice flow rate of the light fraction gas collector, and the orifice flow rate of the heavy fraction gas collector can be obtained through the above process;

[0208] The above method of the present invention can be used to simulate the parameter changes of the hydraulic state of the gas purification equipment during the adjustment process of external parameters:

[0209] Such as Figure 8 and Figure 9 As shown, the hydraulic parameters of the gas purification equipment will be affected only when the back pressure of the heavy fraction and the back pressure of the light fraction are adjusted to a certain range;

[0210] The method proposed in the above embodiments of the present invention can reflect the change law of the hydraulic characteristics of the gas purification equipment with the adjustment of external parameters, and provide a basis for the operation state simulation and performance optimization of the gas purification equipment.

[0211] The method proposed by the present invention is equivalent to a hydraulic model of a special equipment that adapts to external parameters, and is used to adaptively adjust the hydraulic characteristics of the special equipment according to the adjustment of external parameters (gas purification equipment);

[0212] This model that adapts to external parameters is applicable to a complete set of special equipment. The external parameters refer to the charging flow rate, the back pressure of the light fraction, and the back pressure of the heavy fraction. The important hydraulic characteristic quantities refer to the split ratio, the retention amount, and the critical pressure of the light and heavy fraction gas collection ports;

[0213] The main physical processes that the present invention associates the special equipment with external parameters include three main physical processes: normal shock wave, isentropic compression, and small orifice outflow. The physical quantities before the normal shock wave are flow field variables, and the back pressure of the small orifice outflow is the P W / P (the back pressure of the light fraction and the back pressure of the heavy fraction) that can be artificially adjusted in the experiment. Through the above three main physical processes, the flow field variables can be associated with the external parameters;

[0214] An important intermediate quantity for the present invention to achieve adaptive adjustment of the flow field by external parameters is the stagnation pressure P3 after isentropic compression. By judging the magnitude between the stagnation pressure and the back pressure, it is determined whether the gas collection port is in the intake process or the gas collection process, and further calculating whether the orifice reverse pressure ratio satisfies the sonic condition determines whether the orifice fluid is sonic flow or subsonic flow;

[0215] The remarkable effect of the present invention is that by using the method of the present invention, it is possible to reflect the adaptive change of the hydraulic characteristic quantities of the special equipment with the adjustment of external parameters, realize the simulation of the relationship between the back pressure and the critical pressure of the special equipment, realize the simulation of the change of the characteristic quantities of the special equipment concerned in the experiment under the full operating state with the external parameters, and further explore the influence of the adjustment of external parameters on the hydraulic characteristics of the special equipment.

[0216] Such as Figure 2As shown in the figure, an embodiment of the present invention further provides a device 20 for determining the hydrodynamic parameters of a gas purification equipment, including:

[0217] An acquisition module 21, configured to acquire the inflation flow rate data of the intake pipeline of the gas purification equipment, the light fraction back pressure data of the light fraction gas collector of the gas purification equipment, and the heavy fraction back pressure data of the heavy fraction gas collector of the gas purification equipment;

[0218] A processing module 22, configured to obtain the flow parameters before the gas shock compression of the gas purification equipment according to the inflation flow rate data of the intake pipeline; obtain the pressure data before the gas shock compression of the gas purification equipment according to the flow parameters before the gas shock compression; obtain the pressure data after the gas shock compression of the gas purification equipment according to the pressure data before the gas shock compression; obtain the stagnation pressure data after the isentropic compression of the gas purification equipment according to the pressure data after the gas shock compression; obtain the orifice inverse pressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice inverse pressure ratio parameter of the heavy fraction gas collector of the gas purification device according to the stagnation pressure data after the isentropic compression of the gas, the light fraction back pressure data of the light fraction gas collector, and the heavy fraction back pressure data of the heavy fraction gas collector; and obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device and the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device according to the orifice inverse pressure ratio parameter of the light fraction gas collector and the orifice inverse pressure ratio parameter of the heavy fraction gas collector.

[0219] Optionally, obtaining the flow parameters before the gas shock compression of the gas purification equipment according to the inflation flow rate data of the intake pipeline includes:

[0220] According to the inflation flow rate data of the intake pipeline, through

[0221]

[0222]

[0223] Obtain the flow parameters before the gas shock compression of the gas purification equipment;

[0224] Wherein, r represents the radial coordinate; z represents the axial coordinate; ρ represents the density before the gas shock compression; T represents the temperature before the gas shock compression; u represents the radial component of the velocity before the gas shock compression; v represents the angular component of the velocity before the gas shock compression; w represents the axial component of the velocity before the gas shock compression; E k Represents the Ekman number at the side wall of the gas purification equipment, E k = μ / ρωr w ωr a 2 , μ is the viscosity coefficient of the gas, ρ wis the pressure at the side wall of the gas purification equipment, ω is the rotational angular velocity of the gas purification equipment, and r a is the radius of the gas purification equipment; A represents the dimensionless velocity coefficient, A = MΩ 2 r a 2 *2RT 0 , M is the molar molecular mass of the gas, R is the gas constant, and T 0 is the average temperature of the side wall of the gas purification equipment; Pr represents the Prandtl number, Pr = μc p / κ, c p is the specific heat at constant pressure of the gas, and κ is the thermal conductivity; ρ 0 represents the density of the gas in the isothermal rigid body state, represents the mass source-sink term with the source being the inflation flow rate; D e represents the thermal diffusion term, γ represents the specific heat ratio of the gas.

[0225] Optionally, based on the flow parameters of the gas before shock compression, the pressure data of the gas before shock compression of the gas purification equipment are obtained, including:

[0226] Based on the flow parameters of the gas before shock compression, through

[0227]

[0228] the pressure data of the gas before shock compression of the gas purification equipment are obtained;

[0229] wherein, P represents the pressure of the gas before shock compression.

[0230] Optionally, based on the pressure data of the gas before shock compression, the pressure data of the gas after shock compression of the gas purification equipment are obtained, including:

[0231] Based on the pressure data of the gas before shock compression, through

[0232]

[0233] the pressure data of the gas after shock compression of the gas purification equipment are obtained;

[0234] wherein, P 2 represents the pressure of the gas after shock compression; P represents the pressure of the gas before shock compression; γ represents the specific heat ratio of the gas; Ma represents the Mach number of the gas before shock compression; b represents the angular component of the gas velocity; R represents the gas constant; and T represents the temperature of the gas before shock compression.

[0235] Optionally, based on the pressure data after gas shock compression, obtain the stagnation pressure data after isentropic compression of the gas in the gas purification equipment, including:

[0236] Based on the pressure data after gas shock compression, through

[0237]

[0238] Obtain the stagnation pressure data after isentropic compression of the gas in the gas purification equipment;

[0239] Among them, P 3 represents the stagnation pressure after isentropic compression of the gas; P 2 represents the pressure after gas shock compression; γ represents the specific heat ratio of the gas; Ma 2 represents the Mach number after gas shock compression; Ma represents the Mach number before gas shock compression; v represents the angular component of the velocity before gas shock compression; R represents the gas constant; T represents the temperature before gas shock compression.

[0240] Optionally, based on the stagnation pressure data after isentropic compression of the gas, the back pressure data of the light fraction gas collector, and the back pressure data of the heavy fraction gas collector, obtain the orifice reverse pressure ratio parameter of the light fraction gas collector of the gas purification device and the orifice reverse pressure ratio parameter of the heavy fraction gas collector of the gas purification device, including:

[0241] Based on the stagnation pressure data after isentropic compression of the gas, the back pressure data of the light fraction gas collector, and the sound speed condition, determine the orifice reverse pressure ratio parameter of the light fraction gas collector of the gas purification device;

[0242] Based on the stagnation pressure data after isentropic compression of the gas, the back pressure data of the heavy fraction gas collector, and the sound speed condition, determine the orifice reverse pressure ratio parameter of the heavy fraction gas collector of the gas purification device.

[0243] Optionally, based on the orifice reverse pressure ratio parameter of the light fraction gas collector and the orifice reverse pressure ratio parameter of the heavy fraction gas collector, obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device and the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device, including:

[0244] Based on the orifice reverse pressure ratio parameter of the light fraction gas collector, through

[0245]

[0246] Obtain the orifice flow rate parameter of the light fraction gas collector of the gas purification device;

[0247] Among them, m 轻 represents the orifice flow rate of the light fraction gas collector; ρ 轻* Denotes the density upstream of the orifice of the light fraction gas collector; a 轻 * Denotes the sonic velocity upstream of the orifice of the light fraction gas collector; S 轻 Denotes the orifice area of the light fraction gas collector; P 轻 * Denotes the orifice backpressure ratio of the light fraction gas collector; γ denotes the specific heat ratio of the gas;

[0248] According to the orifice backpressure ratio parameter of the heavy fraction gas collector, through

[0249]

[0250] Obtain the orifice flow rate parameter of the heavy fraction gas collector of the gas purification device;

[0251] wherein, m 重 Denotes the orifice flow rate of the heavy fraction gas collector; ρ 重 * Denotes the density upstream of the orifice of the heavy fraction gas collector; a 重 * Denotes the sonic velocity upstream of the orifice of the heavy fraction gas collector; S 重 Denotes the orifice area of the heavy fraction gas collector; P 重 * Denotes the orifice backpressure ratio of the heavy fraction gas collector.

[0252] It should be noted that this device is the device corresponding to the above method, and all implementation manners in the above method embodiments are applicable to the embodiments of this device and can also achieve the same technical effects.

[0253] An embodiment of the present invention also provides a computing device, including: a processor and a memory storing a computer program. When the computer program is run by the processor, it executes the method as described in the above embodiments. All implementation manners in the above method embodiments are applicable to this embodiment and can also achieve the same technical effects.

[0254] An embodiment of the present invention also provides a computer-readable storage medium storing instructions. When the instructions are run on a computer, the computer is made to execute the method as described in the above embodiments. All implementation manners in the above method embodiments are applicable to this embodiment and can also achieve the same technical effects.

[0255] The above is the preferred implementation manner of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle described in the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A method for determining hydraulic parameters of gas purification equipment, characterized in that: include: Acquire the charging flow data of the air inlet pipeline of the gas purification equipment, the light fraction back pressure data of the light fraction air receiver of the gas purification equipment, and the heavy fraction back pressure data of the heavy fraction air receiver of the gas purification equipment; According to the air flow data of the air intake pipe, flow parameters of the gas purification equipment before the gas shock wave compression are obtained; Obtaining pressure data of the gas purification equipment before the gas shock wave compression according to the flow parameters before the gas shock wave compression; Obtaining pressure data of the gas purification equipment after the gas shock wave compression according to the pressure data of the gas before the shock wave compression; Obtaining stagnation pressure data of the gas after isentropic compression of the gas purification equipment according to the pressure data of the gas after shock wave compression; Obtaining an orifice reverse pressure ratio parameter of the light fraction gas receiver of the gas purification device and an orifice reverse pressure ratio parameter of the heavy fraction gas receiver of the gas purification device according to the stagnation pressure data after isentropic compression of the gas, the light fraction back pressure data of the light fraction gas receiver and the heavy fraction back pressure data of the heavy fraction gas receiver; According to the orifice reverse pressure ratio parameter of the light fraction gas receiver and the orifice reverse pressure ratio parameter of the heavy fraction gas receiver, the orifice flow parameter of the light fraction gas receiver of the gas purification device and the orifice flow parameter of the heavy fraction gas receiver of the gas purification device are obtained.

2. The method for determining hydraulic parameters of gas purification equipment according to claim 1, characterized in that: According to the gas flow data of the air intake pipe, the flow parameters of the gas purification equipment before the gas shock wave compression are obtained, including: According to the charging flow data of the intake pipe, by Obtaining flow parameters of gas purification equipment before gas shock compression; Where r represents the radial coordinate; z represents the axial coordinate; ρ represents the density of the gas before the shock wave is compressed; T represents the temperature of the gas before the shock wave is compressed; u represents the radial component of the velocity of the gas before the shock wave is compressed; v represents the angular component of the velocity of the gas before the shock wave is compressed; w represents the axial component of the velocity of the gas before the shock wave is compressed; E k represents the Ekman number at the side wall of the gas purification equipment, E k =μ / ρ w ωr a 2 , μ is the viscosity coefficient of the gas, ρ w is the pressure at the side wall of the gas purification equipment, ω is the rotational angular velocity of the gas purification equipment, r a is the radius of the gas purification equipment; A represents the dimensionless velocity coefficient, A = Mω 2 r a 2 / 2RT0, M is the molar molecular mass of the gas, R is the gas constant, T0 is the average temperature of the side wall of the gas purification equipment; Pr represents the Prandtl number, pr = μc p / κ,c p is the specific heat of gas at constant pressure, κ is the thermal conductivity coefficient; ρ0 represents the density of the gas under isothermal rigid body state, The source is the mass source and sink term of the aeration flow; D e represents the heat diffusion term, γ represents the specific heat ratio of the gas.

3. The method for determining hydraulic parameters of gas purification equipment according to claim 1, characterized in that: According to the flow parameters before the gas shock wave compression, the pressure data of the gas purification equipment before the gas shock wave compression is obtained, including: According to the flow parameters before the gas shock wave compression, Obtaining the pressure data of the gas before shock wave compression of the gas purification equipment; Where P represents the pressure of the gas before the shock wave compression.

4. The method for determining hydraulic parameters of gas purification equipment according to claim 1, characterized in that: According to the pressure data of the gas before shock wave compression, the pressure data of the gas purification equipment after shock wave compression is obtained, including: According to the pressure data of the gas before shock wave compression, Obtaining the pressure data of the gas after shock wave compression of the gas purification equipment; Among them, P2 represents the pressure of the gas after shock wave compression; P represents the pressure of the gas before shock wave compression; γ represents the specific heat ratio of the gas; Ma represents the Mach number before shock wave compression of the gas; v represents the angular component of the gas velocity; R represents the gas constant; T represents the temperature of the gas before shock wave compression.

5. The method for determining hydraulic parameters of gas purification equipment according to claim 1, characterized in that: According to the pressure data of the gas after shock wave compression, the stagnation pressure data of the gas after isentropic compression of the gas purification equipment is obtained, including: According to the pressure data of the gas shock wave after compression, Obtaining stagnation pressure data of gas after isentropic compression of gas purification equipment; Among them, P3 represents the stagnation pressure of the gas after isentropic compression; P2 represents the pressure of the gas after shock wave compression; γ represents the specific heat ratio of the gas; Ma2 represents the Mach number after shock wave compression of the gas; Ma represents the Mach number before shock wave compression of the gas; v represents the angular component of the velocity before shock wave compression of the gas; R represents the gas constant; T represents the temperature of the gas before shock wave compression.

6. The method for determining hydraulic parameters of gas purification equipment according to claim 1, characterized in that: According to the stagnation pressure data of the gas after isentropic compression, the light fraction back pressure data of the light fraction gas receiver and the heavy fraction back pressure data of the heavy fraction gas receiver, an orifice reverse pressure ratio parameter of the light fraction gas receiver of the gas purification device and an orifice reverse pressure ratio parameter of the heavy fraction gas receiver of the gas purification device are obtained, including: Determine the orifice back pressure ratio parameter of the light fraction gas receiver of the gas purification device according to the stagnation pressure data of the gas after isentropic compression, the light fraction back pressure data of the light fraction gas receiver and the sonic velocity condition; The orifice back pressure ratio parameter of the heavy fraction gas receiver of the gas purification device is determined according to the stagnation pressure data of the gas after isentropic compression, the heavy fraction back pressure data of the heavy fraction gas receiver and the sonic velocity condition.

7. The method for determining hydraulic parameters of gas purification equipment according to claim 1, characterized in that: According to the orifice reverse pressure ratio parameter of the light fraction gas receiver and the orifice reverse pressure ratio parameter of the heavy fraction gas receiver, an orifice flow parameter of the light fraction gas receiver of the gas purification device and an orifice flow parameter of the heavy fraction gas receiver of the gas purification device are obtained, including: According to the orifice reverse pressure ratio parameter of the light fraction gas receiver, Obtaining the orifice flow rate parameters of the light fraction gas receiver of the gas purification device; Among them, m 轻 represents the orifice flow rate of the light fraction receiver; ρ 轻 * represents the density upstream of the orifice of the light fraction receiver; a 轻 * S represents the sound velocity upstream of the orifice of the light fraction receiver; 轻 represents the orifice area of ​​the light fraction receiver; P 轻 * represents the orifice reverse pressure ratio of the light fraction gas receiver; γ represents the specific heat ratio of the gas; According to the orifice reverse pressure ratio parameter of the heavy fraction gas receiver, Obtaining the orifice flow rate parameters of the heavy fraction gas receiver of the gas purification device; Among them, m 重 represents the orifice flow rate of the heavy fraction receiver; ρ 重 * represents the density upstream of the orifice of the heavy fraction receiver; a 重 * S represents the sound velocity upstream of the orifice of the heavy fraction receiver; 重 represents the orifice area of ​​the heavy fraction receiver; P 重 * It represents the orifice back pressure ratio of the heavy fraction receiver.

8. A device for determining hydraulic parameters of gas purification equipment, characterized in that: include: An acquisition module, used to acquire the charging flow data of the air inlet pipeline of the gas purification equipment, the light fraction back pressure data of the light fraction air receiver of the gas purification equipment, and the heavy fraction back pressure data of the heavy fraction air receiver of the gas purification equipment; A processing module is used to obtain flow parameters of the gas purification equipment before gas shock compression based on the inflation flow data of the air inlet pipeline; to obtain pressure data of the gas purification equipment before gas shock compression based on the flow parameters before the gas shock compression; to obtain pressure data of the gas purification equipment after gas shock compression based on the pressure data before the gas shock compression; to obtain stagnation pressure data of the gas after isentropic compression of the gas purification equipment based on the pressure data after the gas shock compression; to obtain orifice reverse pressure ratio parameters of the light fraction gas collector of the gas purification device and orifice reverse pressure ratio parameters of the heavy fraction gas collector of the gas purification device based on the stagnation pressure data after the gas isentropic compression, the light fraction back pressure data of the light fraction gas collector and the heavy fraction back pressure data of the heavy fraction gas collector; to obtain orifice flow parameters of the light fraction gas collector of the gas purification device and orifice flow parameters of the heavy fraction gas collector of the gas purification device based on the orifice reverse pressure ratio parameters of the light fraction gas collector and the orifice reverse pressure ratio parameters of the heavy fraction gas collector.

9. A computing device, characterized in that include: A processor and a memory storing a computer program, wherein when the computer program is executed by the processor, the method according to any one of claims 1 to 7 is performed.

10. A computer-readable storage medium, characterized in that: Instructions are stored, and when the instructions are executed on a computer, the computer is caused to execute the method according to any one of claims 1 to 7.

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