A parameterized design method and system of a substation accident oil pool

Abstract

The present application belongs to the technical field of transformer substation accident oil pool, and particularly relates to a parameterized design method and system for transformer substation accident oil pool. The method constructs an accident oil pool model, and the two ends of the accident oil pool along the length direction are respectively provided with an oil inlet and a water outlet. The transformer oil volume corresponding to the transformer with the maximum capacity of the transformer substation is obtained, and the volume of the accident oil pool is designed accordingly. The height, estimated length and estimated cross-sectional area of the accident oil pool are calculated. A plurality of baffle units are arranged along the length direction at intervals in the accident oil pool, and the two ends of the baffle unit along the height direction are both provided with a movable part. According to the size of the oil inlet and the flow rate of the medium containing transformer oil sent by the oil inlet, the spacing of the plurality of baffle units and the extension length of the movable part are adjusted. The final designed accident oil pool model is output. The present application is suitable for the parameterized design of transformer substation accident oil pools for transformers of different specifications, and has good oil-water separation effect.

Description

Technical Field

[0001] This invention belongs to the field of substation accident oil tank technology, specifically relating to a parametric design method and system for substation accident oil tanks. Background Technology

[0002] Oil-immersed transformers are widely used in substations, relying on transformer oil as their cooling medium. After long-term operation, leaks and even oil sprays can occur due to the failure of sealing devices, causing environmental pollution and posing a significant fire hazard. Transformer oil contains toxic components such as polycyclic aromatic hydrocarbons, benzene, and heavy metals; direct discharge would severely pollute soil and water bodies, necessitating reliable collection and harmless treatment. Substation emergency oil pools are specialized devices for collecting and storing transformer oil leaks. The structural design of the emergency oil pool is crucial for its storage effectiveness. The pool relies on gravity settling to separate transformer oil and water of different densities. After the water is drained, the transformer oil is reliably stored. Once the stored transformer oil is recovered, the emergency oil pool can be reused.

[0003] To improve the stratification of oil-water mixtures in substation emergency oil pools and reduce the possibility of environmental pollution, a parametric design method for substation emergency oil pools is proposed. This method is used to improve the separation effect of transformer oil and water and is applicable to transformers of different specifications, making it essential. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a parametric design method and system for accident oil pools in transformer substations that improves the separation effect of transformer oil and water through parametric design of the dimensions of key components of the accident oil pool, and is applicable to accident oil pools of different specifications.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] In a first aspect, the present invention provides a parametric design method for a substation emergency oil tank, the parametric design method comprising the following steps:

[0007] S1. Construct an accident oil tank model; the accident oil tank model is a rectangular structure, with an oil inlet at one end extending along its length and a water outlet at the other end extending along its length. The height of the oil inlet is greater than the height of the water outlet, and the oil inlet is connected to the oil tank below the transformer through a pipeline.

[0008] S2. Obtain the transformer oil volume corresponding to the transformer with the maximum capacity of the substation, and design the volume of the emergency oil pool model based on the transformer oil volume.

[0009] S3, obtaining the estimated height, estimated length and estimated cross-sectional area of the accident oil pool model based on the accident oil pool model;

[0010] S4, configuring a plurality of baffle units inside the accident oil pool model; the plurality of baffle units are arranged at intervals along the length direction of the accident oil pool model, and both ends of the height extension direction of the plurality of baffle units are provided with movable parts, which are arranged in an extension mode relative to the baffle units;

[0011] S5, according to the size of the oil inlet and the flow rate of the medium containing transformer oil sent by the oil inlet, the spacing between the plurality of baffle units and the extension length of the movable parts of the plurality of baffle units are calculated, and the final accident oil pool model is output.

[0012] The bottom of the accident oil pool model is provided with a first boss and a second boss, the first boss and the second boss are respectively arranged at both ends of the accident oil pool model along the length direction of the accident oil pool model, and the second boss is in communication with the inside of the accident oil pool model; the accident oil pool is also provided with a water supplement port at one end extending along its length direction, the height of the water outlet is greater than that of the water supplement port, and the water supplement port is in communication with the water source through a pipeline.

[0013] The S3 includes the following steps:

[0014] S31, calculating the average oil droplet diameter d avg of the transformer oil:

[0015]

[0016] In the above formula, d i is the i-th oil droplet diameter, n is the total number of oil droplet types; p i is the percentage of the number of the i-th oil droplet in the total number of oil droplets;

[0017] According to the average oil droplet diameter d avg , the estimated height H of the accident oil pool model is calculated:

[0018]

[0019] In the above formula, d max is the maximum oil droplet diameter; is the upward rounding operation;

[0020] S32, according to the average oil droplet diameter d avg , the upward floating speed v h of the oil droplet in the accident oil pool model is calculated:

[0021]

[0022] ρ oil (T) = ρ oil(T ref )[1-β(T-T ref );

[0023]

[0024] In the above formula, ρw ate is the density of water; g is the acceleration of gravity; ρ oil (T) is the function of oil droplet density with respect to temperature; β is the volume expansion coefficient of the oil droplet; T is the current temperature of the oil droplet; T ref is the reference temperature; ρ oil (T ref ) is the density of the oil droplet at the reference temperature; μ(T) is the function of oil droplet viscosity with respect to temperature; μ(T ref ) is the viscosity of the oil droplet at the reference temperature; E a is the activation energy; R is the gas constant;

[0025] S33, calculating the horizontal initial velocity v v of the oil droplet of the transformer oil:

[0026]

[0027] In the above formula, V oil is the transformer oil volume of the transformer with the maximum capacity of the substation; α is the volume adjustment coefficient; D is the diameter of the oil inlet;

[0028] S34, calculating the estimated cross-sectional area S of the accident oil pool model:

[0029]

[0030] In the above formula, V c is the volume of the accident oil pool model; H is the estimated height of the accident oil pool model; W is the theoretical width of the accident oil pool model; L is the estimated length of the accident oil pool model, and the estimated length L satisfies L≥W.

[0031] The S5 comprises:

[0032] S51, the accident oil pool model has a first end face and a second end face arranged oppositely in the width direction, the actual length of the accident oil pool model is L0, and the actual width of the accident oil pool model is W0;

[0033] S52, sequentially arrange the first baffle unit, the second baffle unit and the third baffle unit along the length direction in the accident oil pool model, the first baffle unit is arranged at one end close to the oil inlet inside the accident oil pool model, and the two ends of the horizontal extension direction of the first baffle unit are respectively in abutment with the first end face and the second end face, the horizontal distance between the first baffle unit and the end face where the oil inlet of the accident oil pool model is located is L1, the first window is formed between the upper surface of the first baffle unit and the inner surface of the accident oil pool model, the height of the first window is H1, the second window is formed between the lower surface of the first baffle unit and the inner surface of the accident oil pool model, the height of the second window is H2, the movable part of the first baffle extends in the vertical direction to adjust the height H1 of the first window or the height H2 of the second window; the spacing between the second baffle unit and the first baffle unit is L2, one end of the second baffle unit is fixedly connected with the first end face, and the other end extends towards the second end face, the horizontal spacing between the second baffle and the second end face is W1, the third window is formed between the upper surface of the second baffle unit and the inner surface of the accident oil pool model, the height of the third window is H3, the fourth window is formed between the lower surface of the second baffle unit and the inner surface of the accident oil pool model, the height of the fourth window is H4, the movable part of the second baffle unit extends in the vertical direction to adjust the height H3 of the third window or the height H4 of the fourth window; the spacing between the third baffle unit and the second baffle unit is L3, one end of the third baffle unit is fixedly arranged with the second end face, and the other end extends towards the first end face, the horizontal spacing between the third baffle unit and the first end face is W2, the fifth window is formed between the upper surface of the third baffle unit and the inner surface of the accident oil pool model, the height of the fifth window is H5, the sixth window is formed between the lower surface of the third baffle unit and the inner surface of the accident oil pool model, the height of the sixth window is H6, the movable part of the third baffle unit extends in the vertical direction to adjust the height H5 of the fifth window or the height H6 of the sixth window;

[0034] S53, the height H1 of the first window is 0.5D, and the height relationship of the first window, the fifth window and the third window satisfies H1≥H5≥H3; the height H2 of the second window is D, and the height relationship of the second window, the sixth window and the fourth window satisfies H2>H4>H6;

[0035] S54, the size of the first baffle unit along the width direction of the accident oil pool model is W0, the size of the second baffle unit and the third baffle unit along the width direction of the accident oil pool model is equal, and the value range is [85%W0, 90%W0];

[0036] S55, the total distance of the horizontal movement of the oil droplets in the accident oil pool model is not less than the estimated length L of the accident oil pool model.

[0037] The horizontal distance L1 between the first baffle unit and the end face of the oil inlet of the oil tank model is calculated according to the following formula:

[0038]

[0039] In the above formula, v v represents the horizontal initial speed of the oil droplets of the transformer oil corresponding to the diameter D of the oil inlet; v vmax is the maximum value of v v .

[0040] In a second aspect, the present application provides a parameterized design system of an oil tank of a transformer substation, which comprises an oil tank model construction module, an oil tank model volume acquisition module, a model parameter estimation module, a baffle unit configuration module, a baffle unit parameter estimation module, and a model output module.

[0041] The oil tank model construction module is configured to construct an oil tank model. The oil tank model is of a rectangular structure, one end of which extends along the length direction and is provided with an oil inlet, and the other end of which extends along the length direction and is provided with a water outlet. The height of the oil inlet is greater than that of the water outlet, and the oil inlet is communicated with an oil tank below the transformer through a pipeline.

[0042] The oil tank model volume acquisition module is configured to acquire the volume of transformer oil corresponding to the maximum capacity of the transformer of the transformer substation, and to design the volume of the oil tank model according to the volume of the transformer oil.

[0043] The model parameter estimation module is configured to acquire the estimated height, the estimated length, and the estimated cross-sectional area of the oil tank model based on the volume of the oil tank model.

[0044] The baffle unit configuration module is configured to configure a plurality of baffle units inside the oil tank model. The plurality of baffle units are arranged at intervals along the length direction of the oil tank model, and both ends of the height extension direction of the plurality of baffle units are provided with movable parts, which are arranged in an extendable and retractable manner relative to the baffle units.

[0045] The baffle unit parameter estimation module is configured to calculate the spacing between the plurality of baffle units and the extension length of the movable parts of the plurality of baffle units according to the size of the oil inlet and the flow rate of the medium containing transformer oil fed into the oil inlet.

[0046] The model output module is configured to output the final oil tank model.

[0047] The bottom of the accident oil pool model is provided with a first boss and a second boss, the first boss and the second boss are respectively arranged at two ends of the accident oil pool model along the length direction of the accident oil pool model, the second boss is communicated with the inside of the accident oil pool model; the accident oil pool is further provided with a water supplement port at one end extending along the length direction of the accident oil pool, the height of the water outlet is greater than the height of the water supplement port, and the water supplement port is communicated with a water source through a pipeline.

[0048] The model parameter estimation module obtains the estimated height, the estimated length and the estimated cross-sectional area of the accident oil pool model through the following steps:

[0049] S31, the average oil droplet diameter d of the transformer oil is calculated avg :

[0050]

[0051] In the above formula, d i is the diameter of the i-th oil droplet, n is the total number of oil droplet types; p i is the percentage of the number of the i-th oil droplet in the total number of oil droplets;

[0052] The estimated height H of the accident oil pool model is calculated according to the average oil droplet diameter d avg :

[0053]

[0054] In the above formula, d max is the maximum oil droplet diameter; is a rounding up operation;

[0055] S32, the floating speed v avg of the oil droplet in the accident oil pool model is calculated according to the average oil droplet diameter d h :

[0056]

[0057] ρ oil (T) = ρ oil (T ref )[1-β(T-T ref );

[0058]

[0059] In the above formula, ρ water is the density of water; g is the acceleration of gravity; ρ oil (T) is the function of the oil droplet density with respect to temperature; β is the volume expansion coefficient of the oil droplet; T is the current temperature of the oil droplet; T ref is the reference temperature; ρ oil (T ref) is the density of the oil droplet at the reference temperature; μ (T) is the viscosity of the oil droplet as a function of temperature; μ (T ref ) is the viscosity of the oil droplet at the reference temperature; E a is the activation energy; R is the gas constant;

[0060] S33, calculating the horizontal initial velocity v of the oil droplet of the transformer oil v

[0061]

[0062] In the above formula, V oil is the volume of the transformer oil of the transformer with the maximum capacity of the substation; a is the volume adjustment coefficient; D is the diameter of the oil inlet 1;

[0063] S34, calculating the estimated cross-sectional area S of the accident oil pool model:

[0064]

[0065] In the above formula, V c is the volume of the accident oil pool model; H is the estimated height of the accident oil pool model; W is the theoretical width of the accident oil pool model; L is the estimated length of the accident oil pool model, and the estimated length L satisfies

[0066] The partition plate unit parameter estimation module calculates the distance between a plurality of partition plate units and the extension length of the movable part of the plurality of partition plate units according to the following steps:

[0067] S51, the accident oil pool model has a first end face and a second end face arranged oppositely in the width direction, the actual length of the accident oil pool model is L0, and the actual width is W0;

[0068] ​S52, sequentially arrange the first baffle unit, the second baffle unit and the third baffle unit along the length direction in the accident oil pool model, the first baffle unit is arranged at one end close to the oil inlet inside the accident oil pool model, and the two ends of the horizontal extension direction of the first baffle unit are respectively in abutment with the first end face and the second end face, the horizontal distance between the first baffle unit and the end face where the oil inlet of the accident oil pool model is located is L1, the first window is formed between the upper surface of the first baffle unit and the inner surface of the accident oil pool model, the height of the first window is H1, the second window is formed between the lower surface of the first baffle unit and the inner surface of the accident oil pool model, the height of the second window is H2, the movable part of the first baffle extends in the vertical direction to adjust the height H1 of the first window or the height H2 of the second window; the spacing between the second baffle unit and the first baffle unit is L2, one end of the second baffle unit is fixedly connected with the first end face, and the other end extends towards the second end face, the horizontal spacing between the second baffle and the second end face is W1, the third window is formed between the upper surface of the second baffle unit and the inner surface of the accident oil pool model, the height of the third window is H3, the fourth window is formed between the lower surface of the second baffle unit and the inner surface of the accident oil pool model, the height of the fourth window is H4, the movable part of the second baffle unit extends in the vertical direction to adjust the height H3 of the third window or the height H4 of the fourth window; the spacing between the third baffle unit and the second baffle unit is L3, one end of the third baffle unit is fixedly arranged with the second end face, and the other end extends towards the first end face, the horizontal spacing between the third baffle unit and the first end face is W2, the fifth window is formed between the upper surface of the third baffle unit and the inner surface of the accident oil pool model, the height of the fifth window is H5, the sixth window is formed between the lower surface of the third baffle unit and the inner surface of the accident oil pool model, the height of the sixth window is H6, the movable part of the third baffle unit extends in the vertical direction to adjust the height H5 of the fifth window or the height H6 of the sixth window;

[0069] S53, the height H1 of the first window is 0.5D, and the height relationship of the first window, the fifth window and the third window satisfies H1≥H5≥H3; the height H2 of the second window is D, and the height relationship of the second window, the sixth window and the fourth window satisfies H2>H4>H6;

[0070] S54, the size of the first baffle unit along the width direction of the accident oil pool model is W0, the size of the second baffle unit and the third baffle unit along the width direction of the accident oil pool model is equal, and the value range is [85%W0, 90%W0];

[0071] S55, the total distance of the horizontal movement of the oil droplets in the accident oil pool model is not less than the estimated length L of the accident oil pool model.

[0072] The horizontal distance L1 between the first baffle unit and the end face of the oil inlet of the accident oil pool model is calculated according to the following formula:

[0073]

[0074] In the above formula, v v represents the horizontal movement initial speed of the oil droplet of the transformer oil corresponding to the oil inlet diameter D; v vmax is the maximum value of v v .

[0075] Compared with the prior art, the present application has the following beneficial effects:

[0076] The present application parameterizes the modeling of the accident oil pool, gives the constraint relationship, obtains the theoretical volume of the accident oil pool model, then estimates the height of the accident oil pool model according to the average particle size distribution of the oil droplet, and further estimates the estimated length and the theoretical width of the accident oil pool model according to the floating speed and the horizontal movement initial speed of the oil droplet in the accident oil pool model; finally, the position of each baffle unit in the accident oil pool model is planned, and the height of the window formed by the baffle unit and the inner surface of the accident oil pool is further adjusted, so as to change the moving path and the collision times of the mixture of the oil droplet and water, which is beneficial to the reduction of the volume of the oil droplet after multiple collisions, and improves the oil-water separation effect and reduces the possibility of pollutant discharge with water. BRIEF DESCRIPTION OF DRAWINGS

[0077] Figure 1 It is a flow chart of the parameterized design method of the present application.

[0078] Figure 2 It is a structural schematic diagram of the accident oil pool model in the present application.

[0079] Figure 3 It is a top view of the accident oil pool model in the present application.

[0080] Figure 4 It is a structural schematic diagram of the first baffle unit in the present application.

[0081] Figure 5 It is a structural schematic diagram of the second baffle unit in the present application.

[0082] Figure 6 It is a structural schematic diagram of the third baffle unit in the present application.

[0083] Figure 7 It is a structural schematic diagram of the parameterized design system of the present application.

[0084] In the above figure, 1, oil inlet; 2, water outlet; 11, first boss; 12, second boss; 13, water supplement port; 14, first end face; 15, second end face; 100, first partition unit; 200, second partition unit; 300, third partition unit. DETAILED DESCRIPTION

[0085] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0086] Example 1

[0087] At present, when oil-immersed transformers leak or spray oil, it is necessary to recover the transformer oil in time to avoid environmental pollution or fire caused by transformer oil leakage. It is necessary to simplify the design process of the accident oil tank, improve the universality of the design process of the accident oil tank, and improve the delamination effect of the accident oil tank on the oil-water mixture. In view of this, as shown in Figure 1 The parameterized design method of the substation accident oil tank provided by the present embodiment is performed in the following steps:

[0088] S1, construct an accident oil tank model as shown in Figure 2 Figure 3 The accident oil tank model is a rectangular structure, one end of which extends along the length direction and is provided with an oil inlet 1, and the other end of which extends along the length direction and is provided with a water outlet 2. The height of the oil inlet 1 is greater than the height of the water outlet 2, and the oil inlet 1 is communicated with the oil tank below the transformer through a pipeline;

[0089] In order to improve the position stability of the accident oil tank in the preset foundation pit, the bottom of the accident oil tank model is provided with a first boss 11 and a second boss 12, and the first boss 11 and the second boss 12 are respectively arranged at both ends of the accident oil tank model along the length direction of the accident oil tank model. The second boss 12 is communicated with the inside of the accident oil tank model, which can improve the height of the oil-water delamination interface at the end of the pipeline corresponding to the water outlet 2, thereby improving the oil-water separation effect. One end of the accident oil tank extending along the length direction is also provided with a water supplement port 13, and the height of the water outlet 2 is greater than the height of the water supplement port 13. The water supplement port 13 is communicated with a water source through a pipeline. Generally, a certain amount of water needs to be stored in the accident oil tank, which is mainly supplemented by precipitation. If the water level in the accident oil tank is low, the water supplement port 13 can be opened for active water supplement until the water supplement height reaches the lower edge of the water outlet 2;

[0090] ​The accident oil pool is buried underground, and the buried depth of the accident oil pool is not less than 1 meter. A manhole and an exhaust hole are arranged on the model of the accident oil pool, and the manhole and the exhaust hole are in communication with the inside of the accident oil pool. The manhole is arranged to facilitate personnel to enter the accident oil pool for maintenance and repair, and the exhaust hole is arranged to facilitate the exhaust of harmful gas in the accident oil pool, so as to avoid the accumulation of dangerous gas in the accident oil pool to cause a safety accident.

[0091] S2, obtaining the transformer oil volume corresponding to the transformer with the maximum capacity of the transformer substation, and designing the volume of the accident oil pool model according to the transformer oil volume; specifically, the volume of the accident oil pool is 1.3-1.5 times the transformer oil volume corresponding to the transformer with the maximum capacity of the transformer substation; usually, when the transformer oil used by the transformer leaks, in order to cool the transformer, the auxiliary fire-fighting means may be started, and the medium sent into the inlet 1 may be transformer oil or a mixture of transformer oil and water, so a certain amount of excess is needed to avoid the mixture of transformer oil and water flowing in quickly, causing incomplete stratification, making the water quality of the water outlet poor, and eliminating the risk of environmental pollution;

[0092] S3, obtaining the estimated height, estimated length and estimated cross-sectional area of the accident oil pool model by the following steps:

[0093] S31, determining the oil droplet size distribution of the transformer oil, and calculating the average oil droplet diameter d avg of the transformer oil:

[0094]

[0095] In the above formula, d i is the diameter of the i-th oil droplet, and n is the total number of oil droplet types; p i is the percentage of the number of the i-th oil droplet in the total number of oil droplets;

[0096] The estimated height H of the accident oil pool model is calculated according to the average oil droplet diameter d avg :

[0097]

[0098] In the above formula, d max is the maximum oil droplet diameter; is the upward rounding operation; in this embodiment, the value range of d max is [100, 1300] microns; and the value range of the estimated height H is [2, 4] meters;

[0099] S32, since the average oil droplet diameter d avg determines the initial motion state of the transformer oil entering the accident oil pool, that is, the upward floating speed, the upward floating speed v avg of the oil droplet in the accident oil pool model is calculated according to the average oil droplet diameter d h :

[0100]

[0101] ρ oil (T)=ρ oil (T ref )[1-β(TT ref );

[0102]

[0103] In the above formula, ρ water ρ is the density of water; g is the acceleration due to gravity; ρ is the density of water. oil (T) is the oil droplet density as a function of temperature; β is the volume expansion coefficient of the oil droplet; T is the current temperature of the oil droplet; T ref For reference temperature; ρ oil (T ref ) represents the density of the oil droplet at the reference temperature; μ(T) represents the viscosity of the oil droplet as a function of temperature; μ(T) ref E represents the oil droplet viscosity at the reference temperature. a is the activation energy; R is the gas constant;

[0104] Since transformer oil is used for cooling transformers, the current temperature T of the oil droplets can be found in a table to be within the range of [35℃, 75℃]. T affects both the density and viscosity of the oil droplets. A higher T results in a lower density, thus increasing the droplet's rising velocity. Conversely, the viscosity of the oil droplets decreases with increasing temperature, also increasing their rising velocity. Therefore, the effect of temperature on the oil droplets must be considered. For example, a reference temperature T... ref The value is set to 26℃;

[0105] S33. Calculate the initial horizontal velocity v of the transformer oil droplets. v :

[0106]

[0107] In the above formula, V oil 1200 represents the transformer oil volume of the transformer with the largest capacity in the substation; D is the diameter of oil inlet 1, for example, the value range of D is [0.2, 0.4]; 1200 represents the number of seconds corresponding to 20 minutes; α is the cross-sectional area of ​​oil inlet 1; α is the volume adjustment coefficient, α∈[1,1.5]; if only transformer oil is fed into the oil inlet, the volume adjustment coefficient is 1; if a mixture of transformer oil and water is fed into the oil inlet, the volume adjustment coefficient is adjusted appropriately according to the proportion of water in the medium.

[0108] S34. Calculate the estimated cross-sectional area S of the accident oil pool model:

[0109]

[0110] In the formula, V c is the volume of the accident oil pool model; H is the estimated height of the accident oil pool model; W is the theoretical width of the accident oil pool model; L is the estimated length of the accident oil pool model, and the estimated length L satisfies

[0111] S4, a plurality of baffle units are arranged inside the accident oil pool model; the plurality of baffle units are arranged at intervals along the length direction of the accident oil pool model, and both ends of the height extension direction of the plurality of baffle units are provided with movable parts, and the movable parts are arranged in extension relative to the baffle units;

[0112] S5, the distance between the appropriate first baffle unit 100 and the oil inlet 1 is set to enable the oil droplets to collide with the surface of the first baffle unit 100 as much as possible, which is beneficial to the breaking and stratification of large-diameter oil droplets; if the flow of the oil inlet 1 is fixed and unchanged, the horizontal initial velocity v v of the oil droplets will gradually decrease with the change of the diameter of the oil inlet 1, in order to adapt to the horizontal initial velocity of different oil droplets, the spacing of the first baffle unit 100, the second baffle unit 200 and the third baffle unit 300 in the length direction of the accident oil pool is adjustable, such as adjusting the position of each baffle unit in the accident oil pool through a straight line adjustment mechanism; therefore, the spacing between the plurality of baffle units and the extension length of the movable part of the plurality of baffle units need to be calculated according to the size of the oil inlet 1 and the flow rate of the medium containing transformer oil sent by the oil inlet 1; the specific steps are as follows:

[0113] S41, under the premise that the volume of the accident oil pool model is unchanged, the estimated length L and the theoretical width W are fine-tuned for the purpose of saving land, and the actual length L0 and the actual width W0 of the accident oil pool model are determined; the accident oil pool model has a first end face 14 and a second end face 15 arranged relatively in the width direction;

[0114] S42, as Figures 4 to 6 shown, the first baffle unit 100, the second baffle unit 200 and the third baffle unit 300 are sequentially arranged in the length direction inside the accident oil pool model, the first baffle unit 100 is arranged near one end of the oil inlet 1 inside the accident oil pool model, and the two ends of the horizontal extension direction of the first baffle unit 100 are respectively in abutment with the first end face 14 and the second end face 15, and the horizontal distance L1 between the first baffle unit 100 and the end face of the oil inlet 1 of the accident oil pool model is calculated according to the following formula:

[0115]

[0116] In the formula, v vrepresents the initial velocity of horizontal movement of the oil droplet of transformer oil corresponding to the diameter D of the oil inlet 1; v vmax is the maximum value of v v ;

[0117] A first window is formed between the upper surface of the first partition unit 100 and the inner surface of the accident oil pool model, the height of the first window is H1, a second window is formed between the lower surface of the first partition unit 100 and the inner surface of the accident oil pool model, the height of the second window is H2, the movable part of the first partition extends in the vertical direction to adjust the height H1 of the first window or the height H2 of the second window; the distance between the second partition unit 200 and the first partition unit 100 is L2, one end of the second partition unit 200 is fixedly connected with the first end surface 14, and the other end extends towards the second end surface 15, the horizontal distance between the second partition unit 200 and the second end surface 15 is W1, a third window is formed between the upper surface of the second partition unit 200 and the inner surface of the accident oil pool model, the height of the third window is H3, a fourth window is formed between the lower surface of the second partition unit 200 and the inner surface of the accident oil pool model, the height of the fourth window is H4, the movable part of the second partition unit 200 extends in the vertical direction to adjust the height H3 of the third window or the height H4 of the fourth window; the distance between the third partition unit and the second partition unit 200 is L3, one end of the third partition unit 300 is fixedly arranged with the second end surface 15, and the other end extends towards the first end surface 14, the horizontal distance between the third partition unit 300 and the first end surface 14 is W2, a fifth window is formed between the upper surface of the third partition unit 300 and the inner surface of the accident oil pool model, the height of the fifth window is H5, a sixth window is formed between the lower surface of the third partition unit 300 and the inner surface of the accident oil pool model, the height of the sixth window is H6, and the movable part of the third partition unit 300 extends in the vertical direction to adjust the height H5 of the fifth window or the height H6 of the sixth window;

[0118] S43, the height H1 of the first window is 0.5D, and the height relationship of the first window, the fifth window and the third window satisfies H1≥H5≥H3; the height H2 of the second window is D, and the height relationship of the second window, the sixth window and the fourth window satisfies H2>H4>H6;

[0119] S44, the size of the first partition unit 100 along the width direction of the accident oil pool model is W0, the size of the second partition unit 200 and the third partition unit 300 along the width direction of the accident oil pool model is equal, and is [85% W0, 90% W0];

[0120] S45, the total distance of the horizontal movement of the oil droplet in the accident oil pool model is not less than the estimated length L of the accident oil pool model.

[0121] Specifically, the thickness of the first, second and third baffle units 100, 200 and 300 is ≥0.05H; the distance L3 between the third baffle unit and the second baffle unit is ≥0.4H; the distance L3 between the second baffle unit and the first baffle unit is equal to the distance L3 between the third baffle unit and the second baffle unit; here, the equal distance refers to the equal center distance;

[0122] Specifically, the second baffle unit 200 and the third baffle unit 300 can be arranged at a certain inclination angle with the first end face 14 of the accident oil pool model, of course, the second baffle unit 200 can also be arranged perpendicular to the first end face 14, and the third baffle unit 300 is perpendicular to the second end face. The purpose is to prolong the residence time of oil droplets in the horizontal direction of the accident oil pool as much as possible through the first, second and third baffle units 100, 200 and 300, and fully meet the time requirement of oil droplets floating up

[0123] S6, output the final accident oil pool model.

[0124] Embodiment 2:

[0125] Referring to Figure 7 A parameterized design system of a transformer substation accident oil pool, the parameterized design system comprises an accident oil pool model construction module, an accident oil pool model volume acquisition module, a model parameter estimation module, a baffle unit configuration module, a baffle unit parameter estimation module, and a model output module. The accident oil pool model construction module is used to construct an accident oil pool model. The accident oil pool model is of a rectangular structure, one end of which extends along the length direction and is provided with an oil inlet 1, and the other end of which extends along the length direction and is provided with a water outlet 2. The height of the oil inlet 1 is greater than the height of the water outlet 2. The oil inlet 1 is communicated with an oil tank below a transformer through a pipeline. The bottom of the accident oil pool model is provided with a first boss 11 and a second boss 12. The first boss 11 and the second boss 12 are respectively arranged at the two ends of the accident oil pool model along the length direction of the accident oil pool model. The second boss 12 is communicated with the inside of the accident oil pool model. One end of the accident oil pool extending along the length direction is also provided with a water supplement inlet 13. The height of the water outlet 2 is greater than the height of the water supplement inlet 13. The water supplement inlet 13 is communicated with a water source through a pipeline. The accident oil pool model volume acquisition module is used to acquire the volume of transformer oil corresponding to a transformer with the maximum capacity of a transformer substation, and to design the volume of the accident oil pool model according to the volume of the transformer oil. The model parameter estimation module is used to acquire the estimated height, the estimated length and the estimated cross-sectional area of the accident oil pool model based on the volume of the accident oil pool model. Specifically, the following steps are performed:

[0126] S31, calculate the average oil droplet diameter d of the transformer oil avg :

[0127]

[0128] In the above formula, d i is the diameter of the i-th oil droplet, and n is the total number of oil droplet types; p i is the percentage of the number of the i-th oil droplet in the total number of oil droplets;

[0129] According to the average oil droplet diameter d avg , the estimated height H of the oil pool model is calculated:

[0130]

[0131] In the above formula, d max is the maximum oil droplet diameter; is a rounding-up operation;

[0132] S32, the upward floating speed v avg of the oil droplet in the oil pool model is calculated according to the average oil droplet diameter d h :

[0133]

[0134] ρ oil (T) = ρ oil (T ef )[1-β(T-T ref )];

[0135]

[0136] In the above formula, ρ water is the density of water; g is the acceleration of gravity; ρ oil (T) is a function of the density of the oil droplet with respect to temperature; β is the volume expansion coefficient of the oil droplet; T is the current temperature of the oil droplet; T ref is the reference temperature; ρ oil (T ref ) is the density of the oil droplet at the reference temperature; μ(T) is a function of the viscosity of the oil droplet with respect to temperature; μ(T ref ) is the viscosity of the oil droplet at the reference temperature; E a is the activation energy; R is the gas constant;

[0137] S33, the horizontal initial speed v v of the oil droplet of the transformer oil is calculated:

[0138]

[0139] In the above formula, V oil is the volume of the transformer oil of the transformer with the maximum capacity of the substation; α is a volume adjustment coefficient; D is the diameter of the oil inlet 1;

[0140] S34, calculate the estimated cross-sectional area S of the accident oil pool model:

[0141]

[0142] In the above formula, V c is the volume of the accident oil pool model; H is the estimated height of the accident oil pool model; W is the theoretical width of the accident oil pool model; L is the estimated length of the accident oil pool model, and the estimated length L satisfies

[0143] The partition unit configuration module is configured to configure a plurality of partition units inside the accident oil pool model; the plurality of partition units are arranged at intervals along the length direction of the accident oil pool model, and both ends of the height extension direction of the plurality of partition units are provided with movable parts, and the movable parts are arranged in extension relative to the partition units;

[0144] The partition unit parameter estimation module is configured to calculate the spacing between the plurality of partition units and the extension length of the movable parts of the plurality of partition units according to the size of the oil inlet 1 and the flow rate of the medium containing transformer oil sent by the oil inlet 1; and the calculation is specifically performed according to the following steps:

[0145] S51, the accident oil pool model has a first end face 14 and a second end face 15 arranged oppositely in the width direction, and the actual length of the accident oil pool model is L0 and the actual width is W0;

[0146] S52, sequentially configure a first partition unit 100, a second partition unit 200 and a third partition unit 300 inside the accident oil pool model along the length direction, the first partition unit 100 is arranged near one end of the oil inlet 1 inside the accident oil pool model, and both ends of the horizontal extension direction of the first partition unit 100 are respectively in abutment with the first end face 14 and the second end face 15, and the horizontal distance of the first partition unit 100 from the end face of the oil inlet 1 of the accident oil pool model is L1, which is calculated according to the following formula:

[0147]

[0148] In the above formula, v v represents the initial horizontal velocity of the oil droplets of the transformer oil corresponding to the diameter D of the oil inlet 1; v vmax is the maximum value of v v ;

[0149] A first window is formed between the upper surface of the first partition unit 100 and the inner surface of the accident oil pool model, the height of the first window is H1, a second window is formed between the lower surface of the first partition unit 100 and the inner surface of the accident oil pool model, the height of the second window is H2, the movable part of the first partition extends along the vertical direction to adjust the height H1 of the first window or the height H2 of the second window; the distance between the second partition unit 200 and the first partition unit 100 is L2, one end of the second partition unit 200 is fixedly connected with the first end surface 14, and the other end extends towards the second end surface 15, the horizontal distance between the second partition unit 200 and the second end surface 15 is W1, a third window is formed between the upper surface of the second partition unit 200 and the inner surface of the accident oil pool model, the height of the third window is H3, a fourth window is formed between the lower surface of the second partition unit 200 and the inner surface of the accident oil pool model, the height of the fourth window is H4, the movable part of the second partition unit 200 extends along the vertical direction to adjust the height H3 of the third window or the height H4 of the fourth window; the distance between the third partition unit and the second partition unit 200 is L3, one end of the third partition unit 300 is fixedly arranged with the second end surface 15, and the other end extends towards the first end surface 14, the horizontal distance between the third partition unit 300 and the first end surface 14 is W2, a fifth window is formed between the upper surface of the third partition unit 300 and the inner surface of the accident oil pool model, the height of the fifth window is H5, a sixth window is formed between the lower surface of the third partition unit 300 and the inner surface of the accident oil pool model, the height of the sixth window is H6, and the movable part of the third partition unit 300 extends along the vertical direction to adjust the height H5 of the fifth window or the height H6 of the sixth window.

[0150] S53, the height H1 of the first window is 0.5D, and the height relationship of the first window, the fifth window and the third window satisfies H1≥H5≥H3; the height H2 of the second window is D, and the height relationship of the second window, the sixth window and the fourth window satisfies H2>H4>H6;

[0151] S54, the size of the first partition unit 100 along the width direction of the accident oil pool model is W0, the size of the second partition unit 200 and the third partition unit 300 along the width direction of the accident oil pool model is equal, and is [85% W0, 90% W0];

[0152] S55, the total distance of the horizontal movement of the oil droplets in the accident oil pool model is not less than the estimated length L of the accident oil pool model.

[0153] The model output module is used to output the final accident oil pool model.

[0154] It should be noted that the present application is illustrated by taking the cuboid structure accident oil pool as an example, but is also applicable to the cylindrical structure accident oil pool. The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A parameterized design method of a substation emergency oil pool, characterized in that: the parameterized design method comprises the following steps: S1, constructing an emergency oil pool model; the emergency oil pool model is a rectangular structure, one end of which extends along the length direction and is provided with an oil inlet (1), the other end of which extends along the length direction and is provided with a water outlet (2), the height of the oil inlet (1) is greater than the height of the water outlet (2), and the oil inlet (1) is communicated with an oil tank below the transformer through a pipeline; S2, obtaining the volume of transformer oil corresponding to the transformer with the maximum capacity of the substation, and designing the volume of the emergency oil pool model according to the volume of the transformer oil; S3, obtaining the estimated height, estimated length and estimated cross-sectional area of the emergency oil pool model based on the volume of the emergency oil pool model; S4, configuring a plurality of baffle units inside the emergency oil pool model; the plurality of baffle units are arranged at intervals along the length direction of the emergency oil pool model, and the two ends of the height extension direction of the plurality of baffle units are provided with movable parts, and the movable parts are arranged in extension relative to the baffle units; S5, calculating the spacing between the plurality of baffle units and the extension length of the movable parts of the plurality of baffle units according to the size of the oil inlet (1) and the flow rate of the medium containing transformer oil fed into the oil inlet (1), and outputting the final emergency oil pool model.

2. The parameterized design method of a substation emergency oil pool according to claim 1, characterized in that: the bottom of the emergency oil pool model is provided with a first boss (11) and a second boss (12), the first boss (11) and the second boss (12) are respectively arranged at the two ends of the emergency oil pool model along the length direction of the emergency oil pool model, and the second boss (12) is communicated with the inside of the emergency oil pool model; one end of the emergency oil pool extending along the length direction is also provided with a water supplement port (13), the height of the water outlet (2) is greater than the height of the water supplement port (13), and the water supplement port (13) is communicated with a water source through a pipeline.

3. The parameterized design method of a substation emergency oil pool according to claim 1, characterized in that: S3 comprises the following steps: S34, calculating the estimated cross-sectional area S of the emergency oil pool model:

4. The parameterized design method of a substation emergency oil pool according to claim 3, characterized in that: S31, calculating the average oil droplet diameter d of the transformer oil avg : In the above formula, d i is the diameter of the i-th oil droplet, n is the total number of oil droplet types; p i is the percentage of the number of the i-th oil droplet in the total number of oil droplets; According to the average oil droplet diameter d avg Calculate the estimated height H of the accident oil pool model: In the above formula, d max is the maximum oil droplet diameter; is a rounding up operation; S32、According to the average oil droplet diameter d avg The floating velocity v of the oil droplet in the accident oil pool model is calculated h : p oil (T) = p oil (T ref )[1 - β(T - T ref ) ; in the above formula, p water is the density of water; g is the acceleration of gravity; p oil (T) is the function of the oil droplet density with respect to temperature; β is the volume expansion coefficient of the oil droplet; T is the current temperature of the oil droplet; T ref is the reference temperature; p oil (T ref ) is the density of the oil droplet at the reference temperature; μ(T) is the function of the oil droplet viscosity with respect to temperature; μ(T ref ) is the oil droplet viscosity at the reference temperature; E a is the activation energy; and R is the gas constant. S33, calculate the horizontal movement initial velocity v of the oil droplets of the transformer oil v : In the above formula, V oil is the transformer oil volume of the transformer with the maximum capacity of the substation; a is the volume adjustment coefficient; and D is the diameter of the oil inlet (1). S4 comprises: In the above formula, V c is the volume of the spill basin model; H is the estimated height of the spill basin model; W is the theoretical width of the spill basin model; and L is the estimated length of the spill basin model, the estimated length L satisfying L≥W. S41, making the emergency oil pool model have a first end face (14) and a second end face (15) arranged oppositely in the width direction, the actual length of the emergency oil pool model is L0, and the actual width is W0; ​ ​ S42, sequentially arrange the first baffle unit (100), the second baffle unit (200) and the third baffle unit (300) along the length direction in the accident oil pool model, the first baffle unit (100) is arranged at one end of the accident oil pool model close to the oil inlet (1), and the two ends of the horizontal extension direction of the first baffle unit (100) are respectively in abutment with the first end face (14) and the second end face (15), the horizontal distance between the first baffle unit (100) and the end face of the oil inlet (1) of the accident oil pool model is L1, the upper surface of the first baffle unit (100) and the inner surface of the accident oil pool model form a first window, the height of the first window is H1, the lower surface of the first baffle unit (100) and the inner surface of the accident oil pool model form a second window, the height of the second window is H2, the movable part of the first baffle extends along the vertical direction to adjust the height H1 of the first window or the height H2 of the second window; the spacing between the second baffle unit (200) and the first baffle unit (100) is L2, one end of the second baffle unit (200) is fixedly connected with the first end face (14), and the other end extends towards the second end face (15), the horizontal spacing between the second baffle and the second end face (15) is W1, the upper surface of the second baffle unit (200) and the inner surface of the accident oil pool model form a third window, the height of the third window is H3, the lower surface of the second baffle unit (200) and the inner surface of the accident oil pool model form a fourth window, the height of the fourth window is H4, the movable part of the second baffle unit (200) extends along the vertical direction to adjust the height H3 of the third window or the height H4 of the fourth window; the spacing between the third baffle unit and the second baffle unit (200) is L3, one end of the third baffle unit (300) is fixedly arranged with the second end face (15), and the other end extends towards the first end face (14), the horizontal spacing between the third baffle unit (300) and the first end face (14) is W2, the upper surface of the third baffle unit (300) and the inner surface of the accident oil pool model form a fifth window, the height of the fifth window is H5, the lower surface of the third baffle unit (300) and the inner surface of the accident oil pool model form a sixth window, the height of the sixth window is H6, the movable part of the third baffle unit (300) extends along the vertical direction to adjust the height H5 of the fifth window or the height H6 of the sixth window; S43, the height H1 of the first window is 0.5D, and the height relationship of the first window, the fifth window and the third window satisfies H1≥H5≥H3; the height H2 of the second window is D0, and the height relationship of the second window, the sixth window and the fourth window satisfies H2>H4>H6; S44, the first partition unit (100) along the width direction of the accident oil pool model size is W0, the second partition unit (200) and the third partition unit (300) along the width direction of the accident oil pool model size is equal, all are [85%W0, 90%W0]; S45, the total distance of the horizontal movement of the oil droplets in the accident oil pool model is not less than the estimated length L of the accident oil pool model.

5. The parameterized design method of the transformer substation accident oil pool according to claim 4, characterized in that: The horizontal distance L1 between the first partition unit (100) and the end face of the oil inlet (1) of the accident oil pool model is calculated according to the following formula: In the above formula, v v represents the horizontal initial velocity of the oil droplets of the transformer oil corresponding to the diameter D of the oil inlet (1); v vmax is the maximum value of v v .

6. A parameterized design system of a transformer substation accident oil pool, characterized in that: The parameterized design system comprises an accident oil pool model construction module, an accident oil pool model volume acquisition module, a model parameter estimation module, a partition unit configuration module, a partition unit parameter estimation module and a model output module. The accident oil pool model construction module is configured to construct an accident oil pool model. The accident oil pool model is of a rectangular structure, has an oil inlet (1) at one end extending along the length direction and has a water outlet (2) at the other end extending along the length direction. The height of the oil inlet (1) is greater than that of the water outlet (2). The accident oil pool model volume acquisition module is configured to acquire the volume of transformer oil corresponding to the transformer with the maximum capacity of the transformer substation and to design the volume of the accident oil pool model according to the volume of the transformer oil. The model parameter estimation module is configured to acquire the estimated height, the estimated length and the estimated cross-sectional area of the accident oil pool model based on the volume of the accident oil pool model. The partition unit configuration module is configured to configure a plurality of partition units inside the accident oil pool model. The plurality of partition units are arranged at intervals along the length direction of the accident oil pool model. The height extension direction of the plurality of partition units is provided with movable parts at both ends. The movable parts are arranged in an extendable manner relative to the partition units. The partition unit parameter estimation module is configured to calculate the spacing between the plurality of partition units and the extension length of the movable parts of the plurality of partition units according to the size of the oil inlet (1) and the flow rate of the medium containing transformer oil fed into the oil inlet (1). The model output module is configured to output the final accident oil pool model.

7. The parameterized design system of the transformer substation accident oil pool according to claim 6, characterized in that: The bottom of the accident oil pool model is provided with a first boss (11) and a second boss (12). The first boss (11) and the second boss (12) are arranged at both ends of the accident oil pool model along the length direction of the accident oil pool model. The second boss (12) is in communication with the inside of the accident oil pool model. One end of the accident oil pool extending along the length direction is further provided with a water replenishing port (13). The height of the water outlet (2) is greater than that of the water replenishing port (13). The water replenishing port (13) is in communication with a water source through a pipeline.

8. The parameterized design system of the transformer substation accident oil pool according to claim 6, characterized in that: The model parameter estimation module obtains the estimated height, the estimated length and the estimated cross-sectional area of the accident oil pool model by the following steps: S31, calculating the average oil droplet diameter d of the transformer oil avg : In the above formula, d i is the diameter of the i-th oil droplet, n is the total number of oil droplet types; p i is the percentage of the number of the i-th oil droplet in the total number of oil droplets; According to the average oil droplet diameter d avg Calculate the estimated height H of the accident oil pool model: In the above formula, d max is the maximum oil droplet diameter; is a ceiling operation; S32、According to the average oil droplet diameter d avg The floating velocity v of the oil droplet in the accident oil pool model is calculated h : p oil (T) = p oil (T ref )[1 - β(T - T ref ) ; in the above formula, p water is the density of water; g is the acceleration of gravity; p oil (T) is the function of the oil droplet density with respect to temperature; β is the volume expansion coefficient of the oil droplet; T is the current temperature of the oil droplet; T ref is the reference temperature; p oil (T ref ) is the density of the oil droplet at the reference temperature; μ(T) is the function of the oil droplet viscosity with respect to temperature; μ(T ref ) is the oil droplet viscosity at the reference temperature; E a is the activation energy; and R is the gas constant. S33, calculate the horizontal movement initial velocity v of the oil droplets of the transformer oil v : In the above formula, V oil is the transformer oil volume of the transformer with the maximum capacity of the substation; a is the volume adjustment coefficient; and D is the diameter of the oil inlet (1). S34, calculate the estimated cross-sectional area S of the accident oil pool model: In the above formula, V c is the volume of the spill basin model; H is the estimated height of the spill basin model; W is the theoretical width of the spill basin model; and L is the estimated length of the spill basin model, the estimated length L satisfying L≥W.

9. The parameterized design system of the transformer substation accident oil pool according to claim 8, characterized in that: The baffle unit parameter estimation module calculates the spacing between the baffle units and the extension length of the movable part of the baffle units according to the following steps: S41, let the accident oil pool model have a first end face (14) and a second end face (15) arranged oppositely in the width direction, and the actual length of the accident oil pool model is L0 and the actual width is W0; S42, sequentially arrange the first baffle unit (100), the second baffle unit (200) and the third baffle unit (300) along the length direction in the accident oil pool model, the first baffle unit (100) is arranged at one end of the accident oil pool model close to the oil inlet (1), and the two ends of the horizontal extension direction of the first baffle unit (100) are respectively in abutment with the first end face (14) and the second end face (15), the horizontal distance between the first baffle unit (100) and the end face of the oil inlet (1) of the accident oil pool model is L1, the upper surface of the first baffle unit (100) and the inner surface of the accident oil pool model form a first window, the height of the first window is H1, the lower surface of the first baffle unit (100) and the inner surface of the accident oil pool model form a second window, the height of the second window is H2, the movable part of the first baffle extends along the vertical direction to adjust the height H1 of the first window or the height H2 of the second window; the spacing between the second baffle unit (200) and the first baffle unit (100) is L2, one end of the second baffle unit (200) is fixedly connected with the first end face (14), and the other end extends towards the second end face (15), the horizontal spacing between the second baffle and the second end face (15) is W1, the upper surface of the second baffle unit (200) and the inner surface of the accident oil pool model form a third window, the height of the third window is H3, the lower surface of the second baffle unit (200) and the inner surface of the accident oil pool model form a fourth window, the height of the fourth window is H4, the movable part of the second baffle unit (200) extends along the vertical direction to adjust the height H3 of the third window or the height H4 of the fourth window; the spacing between the third baffle unit and the second baffle unit (200) is L3, one end of the third baffle unit (300) is fixedly arranged with the second end face (15), and the other end extends towards the first end face (14), the horizontal spacing between the third baffle unit (300) and the first end face (14) is W2, the upper surface of the third baffle unit (300) and the inner surface of the accident oil pool model form a fifth window, the height of the fifth window is H5, the lower surface of the third baffle unit (300) and the inner surface of the accident oil pool model form a sixth window, the height of the sixth window is H6, the movable part of the third baffle unit (300) extends along the vertical direction to adjust the height H5 of the fifth window or the height H6 of the sixth window; S43, the height H1 of the first window is 0.5D, and the height relationship of the first window, the fifth window and the third window satisfies H1≥H5≥H3; the height H2 of the second window is D, and the height relationship of the second window, the sixth window and the fourth window satisfies H2>H4>H6; S44、the first partition unit (100) has a size of W0 along the width direction of the accident oil pool model, and the second partition unit (200) and the third partition unit (300) have equal sizes along the width direction of the accident oil pool model, both of which are [85% W0, 90% W0]; S45、the total distance of the horizontal movement of the oil droplets in the accident oil pool model is not less than the estimated length L of the accident oil pool model.

10. The parameterized design system of the substation accident oil pool according to claim 9, characterized in that: the horizontal distance L1 between the first partition unit (100) and the end face of the oil inlet (1) of the accident oil pool model is calculated according to the following formula: In the above formula, v v represents the horizontal initial velocity of the oil droplets of the transformer oil corresponding to the diameter D of the oil inlet (1); v vmax is the maximum value of v v .

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