New energy prefabricated substation structure

Abstract

The invention provides a new energy prefabricated substation structure, and relates to the technical field of prefabricated substations. The new energy preassembled transformer substation structure comprises a transformer substation shell, an inner shell is arranged on the inner wall of the transformer substation shell, and an air outlet hole is formed in the inward side of the bottom end of the inner shell; a double-layer air inlet cylinder is arranged at the top of the inner shell, a first-stage filtering mechanism is arranged in the double-layer air inlet cylinder, the first-stage filtering mechanism comprises a flow uniformizing assembly, a flow converging assembly, a filtering cabin, a storage cabin, a water absorption part and a dehumidification part, the double effects of dust removal and dehumidification on air flow are achieved, and the air flow enters the inner shell; the air flow is discharged from the air outlet holes in the bottom end of the inner shell, so that the whole inner shell is filled with the air flow, heat exchange dead angles are avoided, the heat exchange effect of the air flow is improved, the air flow exchanges heat from the transformer substation shell and then exchanges heat from the interior of the transformer substation shell, and the heat exchange efficiency is improved. And the airflow is prevented from directly entering the interior of the transformer substation shell and generating a large temperature difference between electrical elements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prefabricated substations, in particular to a new energy prefabricated substation structure. BACKGROUND

[0002] In the normal use process of the existing new energy prefabricated substation, water vapor or condensation may be generated on the internal electrical elements due to environmental penetration or temperature difference, which seriously affects the normal work of the substation. In order to prevent or reduce the generation of water vapor and condensation, mechanical ventilation or natural ventilation, which is not high in cost, is often used.

[0003] However, in the ventilation process, the external moisture and dust in the atmosphere are easy to enter and cause new influence on the internal electrical elements of the substation. Although the substation may take certain purification measures on the entering air flow during the ventilation process, the purification effect is limited, and the path of the air flow circulating in the substation is relatively single, which may cause air flow dead angle in local area and the efficiency of eliminating water vapor or condensation in the substation needs to be improved. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a new energy prefabricated substation structure, which comprises a substation shell, a plurality of substation air inlet and exchange ends are arranged at the top end of the substation shell, an air outlet and an air inlet are arranged in the substation air inlet and exchange end, the air outlet adopts mechanical ventilation, an inner shell is arranged on the inner wall of the substation shell, and an air outlet hole is arranged on the inner side of the bottom end of the inner shell; a double-layer air inlet cylinder is arranged on the top of the inner shell, the inner layer of the double-layer air inlet cylinder is communicated with the air inlet, and the outer layer of the double-layer air inlet cylinder is communicated with the inner shell; a first-stage filtering mechanism is arranged in the double-layer air inlet cylinder, the first-stage filtering mechanism comprises a uniform flow assembly, a flow convergence assembly, a filtering cabin, a storage cabin, a water absorbing element and a dehumidifying element, the uniform flow assembly is arranged on the inner top of the double-layer air inlet cylinder and disperses the air flow entering from the air inlet direction uniformly, the flow convergence assembly is arranged on the bottom side of the uniform flow assembly and converges and pressurizes the air flow from the uniform flow assembly direction, the filtering cabin is sleeved in the flow convergence assembly and adopts wet dust removal on the air flow, the storage cabin is arranged in the bottom of the filtering cabin and is communicated with the filtering cabin through the water absorbing element, the water absorbing element is used for absorbing the rising water in the filtering cabin and inputting the storage cabin, the dehumidifying element is embedded in the inner side of the filtering cabin, the storage cabin and the water absorbing element and is used for dehumidifying the dust-removed air flow, the air flow escapes from the bottom side of the dehumidifying element, enters the outer layer of the double-layer air inlet cylinder and enters the inner shell, and finally escapes from the air outlet hole at the bottom end of the inner shell and is discharged from the air outlet.

[0005] Preferably, the inner shell comprises a top cavity and a plurality of side vertical cavity, the plurality of side vertical cavities are respectively communicated with the top cavity, the top cavity is located at the inner top of the substation shell, and the plurality of side vertical cavities are located at the inner side of the side vertical of the substation shell.

[0006] Preferably, the double-layer air inlet cylinder comprises an inner cylinder and an outer cylinder, the inner cylinder is fixedly sleeved in the outer cylinder, the inner cylinder penetrates the top cavity and is communicated with the air inlet, the outer cylinder is communicated with the top cavity, and a plurality of partition strips are fixedly connected between the inner cylinder and the outer cylinder, the plurality of partition strips are arranged at intervals and form airflow passages between the inner cylinder and the outer cylinder.

[0007] Preferably, the uniform flow assembly comprises a top flow resistance block, a tapered body is arranged at the center of the top end of the top flow resistance block, a plurality of uniform flow plates are uniformly arranged on the circumferential side of the tapered body, the plurality of uniform flow plates are fixedly connected to the top flow resistance block, and a plurality of through holes are arranged at the bottom end of the top flow resistance block.

[0008] Preferably, the uniform flow assembly comprises a middle flow convergence cylinder embedded at the bottom end of the top flow resistance block, a plurality of arc-shaped strips are uniformly arranged on the circumferential side of the top end of the middle flow convergence cylinder, gradually converging arc-shaped passages are formed between adjacent two arc-shaped strips, airflow passages are formed between the outer wall of the middle flow convergence cylinder and the inner wall of the top flow resistance block, the airflow passages are communicated with the plurality of arc-shaped passages, the middle flow convergence cylinder is fixedly connected to the inner layer of the double-layer air inlet cylinder, and a hollow cavity is arranged in the middle flow convergence cylinder.

[0009] Preferably, the filter cabin comprises an outer cabin fixedly plugged in the hollow cavity, the outer cabin is a ring-shaped cylinder, a sealing plate is fixedly connected coaxially on the side of the outer cabin facing the axis, a ring-shaped inner cabin with an open bottom end is arranged on the bottom side of the sealing plate, a plurality of radial passages are uniformly arranged on the side wall of the inner cabin on the side facing the axis, the inner cabin is communicated with the outer cabin, a flow stabilizing plate is fixedly connected coaxially at the communication position, and a plurality of holes are uniformly arranged on the flow stabilizing plate.

[0010] Preferably, the outer diameter of the flow stabilizing plate is not less than the outer diameter of the inner cabin.

[0011] Preferably, the storage cabin is coaxially arranged on the inner side of the bottom of the outer cabin, the water absorbing element is coaxially arranged between the inner cabin and the storage cabin, the top of the water absorbing element is hung on the inner cabin, the opening at the top of the water absorbing element extends downward and out of the inner cabin, and the bottom end of the water absorbing element extends to the storage cabin.

[0012] Preferably, a plurality of capillary channels are uniformly arranged on the inner side of the water absorbing element, and the plurality of capillary channels are used for absorbing and conveying the water gradually rising in the outer cabin to the storage cabin.

[0013] Preferably, the dehumidifying member comprises filter cotton coaxially arranged inside the inner cabin and the storage cabin, and a mesh plate is arranged at the bottom end of the filter cotton, and the mesh plate is arranged on the side of the storage cabin facing the shaft.

[0014] The present application has the following advantages: The uniform flow assembly makes the incoming airflow uniformly dispersed to the converging flow assembly, the converging flow assembly accelerates the airflow and forms a rotating airflow, the rotating airflow enters the filter cabin and forms a certain disturbance to the water body in the filter cabin, a certain elimination of dust in the airflow is performed, and then the airflow enters the dehumidifying member for dehumidification, and then escapes from the outer layer of the double-layer air inlet cylinder, realizing the dual effects of dust removal and dehumidification of the airflow. The water absorbing member can guide the gradually rising water body in the filter cabin into the storage cabin, avoiding the rising water level in the filter cabin from blocking the airflow passage. The inner shell guides the clean airflow discharged from the double-layer air inlet cylinder to the inner side of the entire substation shell, and discharges from the bottom end of the inner side of the substation shell, which can make the airflow first exchange heat at the substation shell, and then exchange heat inside the substation shell, avoiding a large temperature difference between the airflow and the electrical elements when the airflow directly enters the substation shell, thereby reducing the generation probability of water vapor and condensation. The flat shape of the inner shell can make the airflow fill the entire inner shell, avoid heat exchange dead angles, and improve the heat exchange effect of the airflow and the temperature uniformity of the electrical elements inside the inner shell of the substation.

[0015] Additional aspects and advantages of the application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and other related drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a schematic diagram of the overall structure of a new energy pre-installed substation structure according to an embodiment of the present application; Figure 2 is a schematic diagram of the local structure of a new energy pre-installed substation structure according to an embodiment of the present application; Figure 3 is a schematic diagram of the local structure of an inner shell according to an embodiment of the present application; Figure 4 is a schematic diagram of the position of a double-layer air inlet cylinder according to an embodiment of the present application; Figure 5 is a position diagram of a primary filtering mechanism according to an embodiment of the application; Figure 6 is a diagram of the internal structure of a double-layer air inlet cylinder according to an embodiment of the application; Figure 7 is a sectional view of a double-layer air inlet cylinder and a primary filtering mechanism according to an embodiment of the application; Figure 8 is an exploded view of a double-layer air inlet cylinder and a primary filtering mechanism according to an embodiment of the application; Figure 9 is an enlarged view of A in FIG. 5; Figure 7 Figure 10 is a position and structure diagram of a secondary filtering mechanism according to an embodiment of the application; Figure 11 is an exploded view of a secondary filtering mechanism according to an embodiment of the application; Figure 12 is a bottom view of a secondary filtering mechanism according to an embodiment of the application.

[0018] Figure: 1, substation shell; 2, substation air inlet; 21, air outlet; 22, air inlet; 3, inner shell; 31, top cavity; 32, side vertical cavity; 4, double-layer air inlet cylinder; 41, inner cylinder; 42, outer cylinder; 43, partition strip; 5, primary filtering mechanism; 51, flow uniformizing assembly; 511, top flow blocking block; 512, conical body; 513, flow uniformizing plate; 514, through hole; 52, flow converging assembly; 521, middle flow converging cylinder; 522, arc-shaped strip; 523, hollow cavity; 53, filtering cabin; 531, outer cabin; 532, sealing plate; 533, inner cabin; 534, flow stabilizing plate; 535, hole; 54, storage cabin; 55, water absorbing element; 551, capillary pipeline; 56, dehumidifying element; 561, filter cotton; 562, mesh plate; 6, secondary filtering mechanism; 61, rotating assembly; 611, impeller body; 612, spiral channel; 613, protruding block; 614, positioning ring; 62, disturbing assembly; 621, connecting rod; 622, disturbing plate; 623, limiting plate; 624, elastic element; 625, ball; 7, compression assembly; 71, support; 72, telescopic element. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the application will be described below with reference to the drawings in the embodiments of the application.

[0020] ​To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Example 1, as Figures 1-4 As shown, a new energy prefabricated substation structure according to an embodiment of this application includes a substation shell 1. The top of the substation shell 1 is provided with a plurality of substation air inlets and outlets 2. The air inlets and outlets 2 are provided with air outlets 21 and air inlets 22. The air outlets 21 adopt mechanical ventilation, specifically by means of motor-driven exhaust fans, so that the internal airflow is discharged to the outside of the substation shell 1.

[0022] It is understandable that when the air outlet 21 exhausts air outward, a negative pressure will be formed inside the entire substation shell 1. Therefore, the air inlet 22 will input airflow from the outside to the inside to ensure stable air pressure.

[0023] like Figure 3 and Figure 4 As shown, an inner shell 3 is provided on the inner wall of the substation housing 1. An air outlet is provided on the inward side of the bottom end of the inner shell 3. It should be noted that the inner shell 3 is installed on all the inner walls of the substation housing 1 except the bottom end. The air outlet is located inward, which facilitates the airflow to enter the interior of the substation housing 1 from the bottom.

[0024] Specifically, the inner shell 3 includes a top cavity 31 and multiple side cavities 32. The multiple side cavities 32 are respectively connected to the top cavity 31. The top cavity 31 is located at the inner top of the substation shell 1, and the multiple side cavities 32 are located on the inner side of the side facade of the substation shell 1.

[0025] like Figure 4 As shown, a double-layer air inlet cylinder 4 is provided on the top of the inner shell 3. The inner layer of the double-layer air inlet cylinder 4 is connected to the air inlet 22, and the outer layer of the double-layer air inlet cylinder 4 is connected to the inner shell 3. It can be understood that the inner layer of the double-layer air inlet cylinder 4 is the air inlet end, and the outer layer is the air outlet end.

[0026] Specifically, such as Figures 5-8 As shown, the double-layer air intake 4 includes an inner cylinder 41 and an outer cylinder 42. The inner cylinder 41 is fixedly sleeved inside the outer cylinder 42. The inner cylinder 41 passes through the top cavity 31 and is connected to the air inlet 22. The outer cylinder 42 is connected to the top cavity 31. A plurality of spacers 43 are fixedly connected between the inner cylinder 41 and the outer cylinder 42. The plurality of spacers 43 are spaced apart and form an airflow channel between the inner cylinder 41 and the outer cylinder 42.

[0027] The double-layer air inlet cylinder 4 is provided with a first filtering mechanism 5, which includes a uniform flow assembly 51, a flow convergence assembly 52, a filtering cabin 53, a storage cabin 54, a water suction element 55, and a dehumidifying element 56. The uniform flow assembly 51 is arranged at the inner top of the double-layer air inlet cylinder 4 and disperses the airflow entering from the air inlet 22 uniformly. The flow convergence assembly 52 is arranged at the bottom side of the uniform flow assembly 51 and converges and accelerates the airflow from the uniform flow assembly 51. The filtering cabin 53 is sleeved in the flow convergence assembly 52 and uses a wet dust removal method for the airflow. The storage cabin 54 is arranged at the inner bottom of the filtering cabin 53 and is connected to the filtering cabin 53 through the water suction element 55. The water suction element 55 is used to adsorb and input the rising water in the filtering cabin 53 into the storage cabin 54. The dehumidifying element 56 is embedded in the inner side of the filtering cabin 53, the storage cabin 54, and the water suction element 55 and is used to dehumidify the dust-removed airflow. After the airflow escapes from the bottom side of the dehumidifying element 56, it enters the outer layer of the double-layer air inlet cylinder 4 and enters the inner shell 3. Finally, it escapes from the air outlet hole at the bottom end of the inner shell 3 and is discharged from the air outlet 21.

[0028] Specifically, as shown in FIG. 4, the uniform flow assembly 51 includes a top flow resistance block 511, a tapered body 512 arranged at the center of the top of the top flow resistance block 511, a plurality of uniform flow plates 513 uniformly arranged on the circumferential side of the tapered body 512, and a plurality of through holes 514 arranged at the bottom end of the top flow resistance block 511. Figures 6-8

[0029] It can be understood that after the airflow enters from the air inlet 22, it enters the inner top of the inner cylinder 41. At this time, the airflow is dispersed to the four directions under the action of the tapered body 512. Then, the airflow is guided and divided by the uniformly distributed plurality of uniform flow plates 513, forms uniform dispersion, and flows downward along the gap between the top flow resistance block 511 and the inner cylinder 41. The airflow enters the inner bottom of the top flow resistance block 511 from the plurality of through holes 514 under the obstruction of the flow convergence assembly 52.

[0030] The flow convergence assembly 52 includes a middle flow convergence cylinder 521 embedded at the bottom end of the top flow resistance block 511. A plurality of arc-shaped strips 522 are uniformly arranged on the top end of the middle flow convergence cylinder 521. The arc-shaped channels gradually shrink between any two adjacent arc-shaped strips 522. The outer wall of the middle flow convergence cylinder 521 and the inner wall of the top flow resistance block 511 form an airflow channel, which is communicated with the plurality of arc-shaped channels. The middle flow convergence cylinder 521 is fixedly connected to the inner layer of the double-layer air inlet cylinder 4. The middle flow convergence cylinder 521 is provided with a hollow cavity 523.

[0031] ​Thus, after the air flow enters into the bottom of the top blocking block 511, the air flow can only flow along the arc-shaped channel formed by the arc-shaped strip 522, and the arc-shaped channel is designed to be gradually tapered, so that the air flow is affected by the smaller volume of the channel during the process, and the effect of pressurization and acceleration is formed, and finally the air flow is converged at the hollow cavity 523 and forms a certain rotating effect due to the influence of the arc-shaped channel.

[0032] Further, the filter cabin 53 includes an outer cabin 531 fixedly plugged into the hollow cavity 523, the outer cabin 531 is a ring-shaped cylinder, and a sealing plate 532 is coaxially fixed to the side of the outer cabin 531 facing the axis, the bottom side of the sealing plate 532 is provided with a ring-shaped inner cabin 533 with an open bottom end, and a plurality of radial channels are uniformly arranged on the side wall of the inner cabin 533 facing the axis, the inner cabin 533 and the outer cabin 531 are communicated, and a flow stabilizing plate 534 is coaxially fixed at the communication position, and a plurality of holes 535 are uniformly arranged on the flow stabilizing plate 534.

[0033] It should be noted that the outer cabin 531 is a straight cylinder, and a ring-shaped notch is arranged on the inner side of the outer cabin 531, and the ring-shaped notch forms a communication between the inner cabin 533 and the outer cabin 531, wherein the outer cabin 531 stores water, and the liquid level of the water is lower than the bottom end of the inner cabin 533 but higher than the bottom end of the ring-shaped notch.

[0034] Further, the outer diameter of the flow stabilizing plate 534 is not less than the outer diameter of the inner cabin 533.

[0035] It can be understood that the air flow affected by pressurization and acceleration and forming rotation enters the outer cabin 531 from the hollow cavity 523 and impacts the water surface, so that the water surface forms a certain fluctuation, and in this process, the dust in the air flow is adsorbed by the fluctuating water, and the air flow is redirected by the liquid surface and enters the inner cabin 533 from the ring-shaped notch and escapes from the plurality of radial channels at the top end of the inner cabin 533.

[0036] In this process, the flow stabilizing plate 534 can form a certain stabilizing effect on the side of the water facing the axis, so as to avoid the water on the side from shaking too much, and the plurality of holes 535 on the flow stabilizing plate 534 can also form a scattering and mixing effect during the shaking process, so as to enhance the adsorption effect of the water on the dust and water carried in the air flow.

[0037] Further, the storage cabin 54 is coaxially arranged on the inner side of the bottom of the outer cabin 531, the water absorbing member 55 is coaxially arranged between the inner cabin 533 and the storage cabin 54, and the top of the water absorbing member 55 is hung on the inner cabin 533, the opening at the top of the water absorbing member 55 extends downward and out of the inner cabin 533, and the bottom end of the water absorbing member 55 extends to the storage cabin 54, a plurality of capillary channels 551 are uniformly arranged on the inner side of the water absorbing member 55 in a circumferential direction, and the plurality of capillary channels 551 are used to adsorb and transport the water in the outer cabin 531 rising gradually to the storage cabin 54.

[0038] It can be understood that when the water body increases with the increase of the amount of dust in the adsorbed air flow and the amount of water vapor, the liquid level will gradually rise, and when the liquid level rises to the top end of the water absorbing part 55, the capillary phenomenon caused by the capillary channel 551 will cause the water body to be sucked and transported into the storage cabin 54 below. Thus, the liquid level can be ensured not to exceed the bottom opening of the inner cabin 533, that is, the liquid level is prevented from plugging the inner cabin 533, and the normal flow of air flow is ensured.

[0039] It should be noted that the outer cabin 531 and the inner cabin 533 are respectively provided with independent drainage channels, so as to drain the accumulated dust in the outer cabin 531 and the water body stored in the inner cabin 533. The specific control mode and the monitoring mode of the liquid level and the height of the accumulated dust are mature in the prior art. In addition, it should be noted that the water body in the outer cabin 531 can be input from the outside in the initial stage, and can be supplemented by the water body stored in the inner cabin 533 in the subsequent stage (the water body in the outer cabin 531 will be lost when the sewage is discharged).

[0040] Further, the dehumidifying part 56 includes filter cotton 561 coaxially arranged inside the inner cabin 533 and the storage cabin 54. The bottom end of the filter cotton 561 is provided with a mesh plate 562, and the mesh plate 562 is arranged on the side of the storage cabin 54 facing the axis.

[0041] Therefore, after the air flow escapes from the plurality of radial channels at the top end of the inner cabin 533, it will directly enter the filter cotton 561 and finally drill out from the mesh plate 562. In this process, the moisture in the air flow (although some moisture can be removed when the air flow passes through the liquid level in the outer cabin 531, but some moisture will also be carried due to the fluctuation of the water body) will be adsorbed by the filter cotton 561, so as to reduce the moisture content in the air flow as much as possible. After the air flow drills out of the filter cotton 561, it enters the inner bottom of the outer cylinder 42, passes through the channels between the plurality of partition strips 43 between the inner cylinder 41 and the outer cylinder 42, and enters the top cavity 31 between the outer cylinder 42 and the inner cylinder 41, and under the action of the flat top cavity 31, the air flow is dispersed into all side vertical cavities 32 as much as possible, and then is discharged from the exhaust hole at the bottom end of the side vertical cavity 32 towards the inside to the inside of the transformer station shell 1, and heats the electrical elements.

[0042] It should be noted that the side vertical cavity 32 and the top cavity 31 can adopt a sliding abutting mode, and the two are connected when the door of the transformer station shell 1 is closed, and are disconnected when the door is opened.

[0043] It can be understood that after the air flow is purified by the first filtering mechanism 5, it enters the top cavity 31 and the side vertical cavity 32, first of all, it exchanges heat with the transformer station shell 1 from the periphery, which greatly reduces the air flow dead angle formed by the air flow directly entering the inside of the transformer station shell 1, and secondly, this way makes the air flow form a "preheating" effect, when the air flow finally enters the inside of the transformer station shell 1, the temperature difference between the air flow and the inside of the transformer station shell 1 will be reduced, so that even if the air flow still contains water, it will also reduce the generation of water vapor or condensation on the electrical elements, and also reduce the damage to the electrical elements caused by the temperature difference.

[0044] In the related art, the new energy pre-installed transformer station structure, in the first filtering mechanism 5, although the air flow can make the water in the outer cabin 531 form a certain fluctuation by accelerating and rotating itself, the fluctuation is affected by the speed of the air flow, the fluctuation amplitude of the liquid surface is relatively small, and the dust treatment effect in the air flow is relatively weak.

[0045] In some embodiments of the present application, as shown in Figure 6 、 Figures 10-12 The inside of the current collection assembly 52 is coaxially provided with a second filtering mechanism 6, the second filtering mechanism 6 includes a rotating assembly 61 and a plurality of disturbance assemblies 62, the rotating assembly 61 is coaxially and rotationally arranged in the hollow cavity 523, the plurality of disturbance assemblies 62 are circumferentially and uniformly arranged at the bottom side of the rotating assembly 61, the plurality of disturbance assemblies 62 are sealingly and slidingly penetrated through the inner cabin 533 and extend to the outer cabin 531, the disturbance assemblies 62 are elastically connected with the sealing plate 532, and the disturbance assemblies 62 are elastically abutted against the rotating assembly 61.

[0046] The rotating assembly 61 includes an impeller body 611 rotationally connected to the outer cabin 531, the outer diameter of the impeller body 611 is not less than the inner diameter of the outer cabin 531, a plurality of spiral channels 612 are circumferentially and uniformly arranged in the impeller body 611, the inlet end of the spiral channel 612 is at the top end of the impeller body 611, and the outlet end of the spiral channel 612 is at the side wall of the impeller body 611.

[0047] It should be noted that the inlet end to the outlet end of the spiral channel 612 is also designed to be gradually converging.

[0048] It can be understood that after the air flow has formed a first pressurization and acceleration through the arc-shaped channels formed by the plurality of arc-shaped strips 522, when the rotating air flow enters the plurality of spiral channels 612 again, the air flow will form pressurization and acceleration again, so that the air flow will drive the impeller body 611 to rotate at this time, and after the air flow is discharged from the outlet end of the impeller body 611, a stronger rotating air flow will be formed.

[0049] Specifically, the bottom end of the impeller body 611 is circumferentially and fixedly connected with a plurality of semispherical protrusions 613.

[0050] Further, the bottom end of the impeller body 611 is coaxially fixed with a positioning ring 614, and the positioning ring 614 is rotationally embedded in the top end of the inner wall of the outer cabin 531.

[0051] Since the impeller body 611 is driven to rotate by the airflow, the plurality of semispherical protrusions 613 at the bottom end of the impeller body 611 will rotate synchronously.

[0052] Further, the disturbance assembly 62 comprises a connecting rod 621 slidingly penetrating the sealing plate 532, the connecting rod 621 is arranged in a Z shape, the bottom end of the connecting rod 621 extends to the bottom side of the flow stabilizing plate 534 and is fixed with a disturbance plate 622, a plurality of through holes are arranged on the disturbance plate 622, the top of the connecting rod 621 is fixed with a limiting plate 623, the part of the connecting rod 621 between the limiting plate 623 and the flow stabilizing plate 534 is sleeved with an elastic member 624, and the top end of the connecting rod 621 is fixed with a ball 625.

[0053] It should be noted that in the initial state, the ball 625 abuts against the bottom end of the impeller body 611.

[0054] It should be further noted that the disturbance plate 622 is located at the outer bottom side of the flow stabilizing plate 534, that is, the inner diameter of the disturbance plate 622 is greater than the outer diameter of the flow stabilizing plate 534, and the displacement stroke of the disturbance plate 622 in the initial state needs to satisfy the up and down displacement across the liquid surface.

[0055] The plurality of connecting rods 621 and the plurality of protrusions 613 are arranged one by one and are spaced apart.

[0056] Therefore, in specific use, the impeller body 611 driven to rotate by the airflow will sequentially abut against the plurality of balls 625 through the plurality of semispherical protrusions 613 at the bottom end of the impeller body 611, in the abutting process, the connecting rod 621 is pressed downward, at this time, the elastic member 624 is extruded, and the connecting rod 621 will drive the disturbance plate 622 at the bottom end to displace downward when the connecting rod 621 displaces downward, and with the rotation of the impeller body 611, the protrusion 613 will be separated from the ball 625, at this time, the connecting rod 621 loses the pressure, and under the elastic force of the elastic member 624, the connecting rod 621 will reset upward, so as to make the disturbance plate 622 reciprocatingly displace upward and downward on the liquid surface, so as to intensify the amplitude of the water body fluctuation, wherein it should be noted that a plurality of through holes are arranged on the disturbance plate 622, which can further improve the scattering effect of the water body in the process of upward and downward displacement of the disturbance plate 622, and it can be understood that the water body will form a splashing effect after being frequently “patted” upward and downward, so as to improve the dust removal effect of the water body on the airflow and reduce the content of dust in the airflow.

[0057] In the related art, the new energy pre-installed transformer substation structure, because the airflow from the outer cabin 531 into the inner cabin 533 is subjected to wet dust removal operation, so a certain amount of moisture will be carried in the airflow, and the moisture will be adsorbed by the filter cotton 561 in the subsequent link, with the increase of the use time, the moisture content in the filter cotton 561 will be more and more, which will cause the blockage phenomenon in the tiny gap in the filter cotton 561, affecting the normal circulation of the airflow.

[0058] In some embodiments of the present application, as shown in Figure 5 and Figure 6 The double-layer air inlet cylinder 4 is further provided with a compression assembly 7, the compression assembly 7 includes a support 71 corresponding to the mesh plate 562, two extension plates are symmetrically arranged on the support 71, the two extension plates respectively extend out of the double-layer air inlet cylinder 4 and are slidingly connected to the double-layer air inlet cylinder 4, two telescopic members 72 are symmetrically and fixedly connected to the outer wall of the double-layer air inlet cylinder 4, and the telescopic ends of the telescopic members 72 are fixedly connected to the extension plates on the support 71.

[0059] Further, the support 71 is annularly arranged, a plurality of support rods are uniformly fixedly connected to the annular support 71 in the circumferential direction, and the other ends of the support rods are fixedly connected to the mesh plate 562.

[0060] It should be noted that the outer cylinder 42 is communicated with a drain pipe, the liquid level of the water body can be monitored by using the liquid level alarm or related sensors in the prior art, and the valve on the drain pipe can be opened in time by using the control device to drain the accumulated water. The specific prior art is mature and will not be described here.

[0061] It should be further noted that the telescopic member 72 can be a hydraulic cylinder or the like in the prior art.

[0062] It should be further noted that a plurality of springs can be arranged in the filter cotton 561, the two ends of the springs are respectively connected to the sealing plate 532 and the mesh plate 562, and the springs are uniformly arranged in the circumferential direction in the filter cotton 561.

[0063] Therefore, during specific use, the telescopic member 72 can be controlled by the control device to drive the annular support 71 to displace upward and downward by elongation and shortening of the piston end of the telescopic member 72. It can be understood that when the support 71 displaces upward, the mesh plate 562 will displace upward, thereby extruding the filter cotton 561. When the mesh plate 562 displaces downward, the filter cotton 561 will be reset by the spring reset action. In this way, the moisture in the filter cotton 561 can be drained to the inner bottom of the outer cylinder 42 in time through repeated extrusion, the absorption effect of the filter cotton 561 on the moisture in the airflow is maintained, and the gas passing property of the filter cotton 561 is ensured.

[0064] In the fourth embodiment, the control system in the control device includes a monitoring management end, a heat dissipation control end and a safety monitoring end. The monitoring management end includes a master control unit and a data recording and analysis unit. The heat dissipation control end includes a temperature detection unit and a heat dissipation execution unit. The safety monitoring end includes a smoke and fire detection unit and an emergency processing unit.

[0065] The master control unit is responsible for receiving, processing and distributing data and instructions from various subsystems. The data recording and analysis unit is used to record various data during the operation of the substation. The temperature detection unit is used to monitor the temperature distribution inside the substation housing 1 in real time. The heat dissipation execution unit is used to control the operation of the ventilation system (air outlet 21) according to the instructions of the master control unit. The smoke and fire detection unit is used to monitor the smoke concentration and temperature anomaly inside the substation housing 1 in real time. The emergency processing unit is used to automatically or manually start the emergency processing program after receiving the alarm of fire or emergency. The heat dissipation execution unit uses model predictive control, and its specific algorithm is as follows: min J = ∑_{k=1}^{N} [ (T_k - T_ref)^T Q (T_k - T_ref) + Δu_k^T R Δu_k ] u s.t. T_{k+1} = A * T_k + B * u_k + W * d_k T_min ≤ T_k ≤ T_max u_min ≤ u_k ≤ u_max Where J is the objective function; N is the prediction time domain; T_k is the internal temperature distribution vector of the substation housing 1 at the kth step of prediction; T_ref is the expected temperature reference value; Q and R are weight matrices; Δu_k is the control increment (such as the fan speed adjustment amount of the air outlet 21); A and B are state space matrices of the system thermal dynamics model; W * d_k is the external thermal disturbance (such as ambient temperature, equipment heat); the solution of the optimization problem is the optimal heat dissipation control sequence {u_1, u_2,..., u_N} in the future period of time; The posterior probability of the fire event of the smoke and fire detection unit is calculated by the following formula: P(Fire | S, T) = [ P(S | Fire) * P(T | Fire) * P_0(Fire) ] / [ P(S) *P(T) ] Wherein, P(Fire | S, T) is the probability of fire occurring under the condition of observing smoke concentration signal S and temperature anomaly signal T; P(S | Fire) and P(T | Fire) are conditional probabilities of generating corresponding signals when fire occurs (obtained by statistical history fire data); P_0(Fire) is the prior probability of fire occurrence; when P(Fire | S, T) exceeds a preset threshold, the emergency processing unit starts fire alarm.

[0066] As can be seen from the above, the main control unit coordinates the work between the units, realizes centralized management of data and execution of control strategy, provides a man-machine interface to facilitate the operation personnel to monitor the running state of the substation and set parameters, the data recording and analysis unit stores, analyzes data, generates reports and early warning information, provides basis for operation and maintenance decision, optimizes the operation strategy of the substation through data analysis, improves the operation efficiency, the temperature detection unit transmits the temperature data to the main control unit, so as to timely adjust the heat dissipation strategy, the heat dissipation execution unit controls the air circulation speed inside the substation shell 1 by adjusting the rotating speed of the exhaust fan in the variable air outlet 21, controls the extension frequency of the telescopic member 72, and controls the liquid level of the water in the outer cabin 531, the inner cabin 533 and the outer cylinder 42, effectively reducing the temperature inside the substation shell 1; the smoke and fire detection unit finds smoke or fire signs immediately, triggers the alarm mechanism, and transmits information to the main control unit, the emergency processing unit includes cutting off the power supply of non-critical load, starting the fire extinguishing device, opening the emergency lighting, etc., to ensure personnel safety and reduce property loss, through the control system, the new energy prefabricated substation structure can realize more intelligent and automatic operation and management, improve the power supply reliability, economy and environmental protection; The heat dissipation execution unit adopts a model predictive control algorithm based on a model, which does not satisfy the current temperature set point, but looks forward (prediction). In each control cycle, it will predict the temperature change trajectory of the future N steps based on an internal thermodynamic model (A, B, W matrix description).

[0067] At the same time, it solves an optimization problem, the goal of which is to find a series of control actions (such as fan speed) that make the predicted temperature trajectory as close as possible to the desired value (objective function first term), while the control actions themselves are as smooth and energy-efficient as possible (objective function second term). After solving, only the first control action in the sequence is executed, and measurement and optimization are performed again in the next cycle. This rolling optimization strategy makes MPC extremely robust to model errors and external disturbances (d_k), and can achieve precise, gentle and efficient temperature control; The smoke and fire detection unit adopts a multi-sensor information fusion algorithm based on Bayesian inference. This algorithm does not rely solely on the threshold alarm of a certain sensor, but rather integrates the smoke and temperature signals to support the probability of the fire hypothesis.

[0068] P(S|Fire) and P(T|Fire) are likelihoods based on a large number of historical fire experiment data statistics. P_0(Fire) is a prior probability, which can be set according to the risk level of the place (for example, this value in the substation can be appropriately higher than that in the ordinary room). The prior probability is updated to the posterior probability P(Fire|S, T) through the Bayesian formula. This method greatly reduces the false alarm rate (for example, dust alone causes the smoke sensor to alarm, but the temperature is normal, and the posterior probability will not be high), and improves the confidence of the early warning. Only when multiple evidences support together, the highest level alarm will be triggered, which provides a more reliable decision basis for emergency response.

[0069] It should be noted that the specific model specifications of the substation shell 1, the filter cotton 561, the mesh plate 562, the elastic member 624 and the telescopic member 72 need to be determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0070] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A prefabricated substation structure for new energy, comprising a substation shell (1), wherein a plurality of substation air inlets / exchange ends (2) are provided at the top of the substation shell (1), and each substation air inlet / exchange end (2) is provided with an air outlet (21) and an air inlet (22), wherein the air outlet (21) adopts mechanical ventilation, characterized in that: The substation housing (1) has an inner shell (3) on its inner wall, and an air outlet is provided on the inner shell (3) with its bottom end facing inward. The inner shell (3) is provided with a double-layer air inlet cylinder (4) at the top. The inner layer of the double-layer air inlet cylinder (4) is connected to the air inlet (22), and the outer layer of the double-layer air inlet cylinder (4) is connected to the inner shell (3). The double-layer air inlet cylinder (4) is equipped with a primary filtration mechanism (5). The primary filtration mechanism (5) includes a flow equalization component (51), a flow convergence component (52), a filter chamber (53), a storage chamber (54), a water absorption component (55), and a dehumidification component (56). The flow equalization component (51) is located at the top inner part of the double-layer air inlet cylinder (4) and evenly disperses the airflow entering from the direction of the air inlet (22). The flow convergence component (52) is located at the bottom side of the flow equalization component (51) and gathers and pressurizes the airflow coming from the direction of the flow equalization component (51). The filter chamber (53) is fitted inside the flow convergence component (52) and uses wet dust removal for the airflow. The storage chamber (54) is located at the bottom of the filter chamber (53) and is connected to the filter chamber (53) through the water absorption component (55). The water absorption component (55) is used to absorb the water rising in the filter chamber (53) and input it into the storage chamber (54). The dehumidifying component (56) is embedded in the filter chamber (53), the storage chamber (54) and the water absorption component (55) and is used to dehumidify the airflow after dust removal. The airflow escapes from the bottom side of the dehumidifying component (56) and enters the outer layer of the double-layer air inlet cylinder (4) and enters the inner shell (3). Finally, it escapes from the air outlet at the bottom of the inner shell (3) and is discharged from the air outlet (21).

2. The structure of a prefabricated new energy substation as described in claim 1, characterized in that, The inner shell (3) includes a top cavity (31) and multiple side cavities (32), the multiple side cavities (32) are respectively connected to the top cavity (31), the top cavity (31) is located at the inner top of the substation shell (1), and the multiple side cavities (32) are located on the inner side of the side facade of the substation shell (1).

3. The structure of a prefabricated new energy substation as described in claim 2, characterized in that, The double-layer air inlet cylinder (4) includes an inner cylinder (41) and an outer cylinder (42). The inner cylinder (41) is fixedly sleeved inside the outer cylinder (42). The inner cylinder (41) passes through the top cavity (31) and is connected to the air inlet (22). The outer cylinder (42) is connected to the top cavity (31). A plurality of spacers (43) are fixedly connected between the inner cylinder (41) and the outer cylinder (42). The plurality of spacers (43) are spaced apart and form an airflow channel between the inner cylinder (41) and the outer cylinder (42).

4. The structure of a prefabricated new energy substation as described in claim 1, characterized in that, The flow equalization component (51) includes a top flow obstruction block (511), a cone (512) is provided at the center of the top of the top flow obstruction block (511), a plurality of flow equalization plates (513) are uniformly arranged around the cone (512), the plurality of flow equalization plates (513) are fixed to the top flow obstruction block (511), and a plurality of through holes (514) are provided at the bottom of the top flow obstruction block (511).

5. The structure of a new energy prefabricated substation as described in claim 4, characterized in that, The merging assembly (52) includes a central merging cylinder (521) embedded at the bottom of the top flow blocking block (511). The top of the central merging cylinder (521) is uniformly provided with multiple arc-shaped strips (522) in the circumferential direction. A gradually narrowing arc-shaped channel is formed between two adjacent arc-shaped strips (522). An airflow channel is formed between the outer wall of the central merging cylinder (521) and the inner wall of the top flow blocking block (511). The airflow channel is connected to the multiple arc-shaped channels. The central manifold (521) is fixed to the inner layer of the double-layer air inlet (4), and a hollow cavity (523) is provided inside the central manifold (521).

6. The structure of a new energy prefabricated substation as described in claim 5, characterized in that, The filter chamber (53) includes an outer chamber (531) fixedly inserted into the hollow cavity (523). The outer chamber (531) is an annular cylindrical shape. A sealing plate (532) is coaxially fixed to the side of the outer chamber (531) facing the axis. An annular inner chamber (533) with an open bottom is provided on the bottom side of the sealing plate (532). Multiple radial channels are uniformly arranged on the side wall of the top of the inner chamber (533) facing the axis. The inner chamber (533) and the outer chamber (531) are connected, and a flow stabilizing plate (534) is coaxially fixed at the connection. Multiple holes (535) are uniformly arranged on the flow stabilizing plate (534).

7. The new energy prefabricated substation structure as described in claim 6, characterized in that, The outer diameter of the flow stabilizer (534) is not less than the outer diameter of the inner compartment (533).

8. The structure of a new energy prefabricated substation as described in claim 6, characterized in that, The storage compartment (54) is coaxially disposed on the inner side of the bottom of the outer compartment (531). The water-absorbing component (55) is coaxially disposed between the inner compartment (533) and the storage compartment (54), with the top of the water-absorbing component (55) hanging on the inner compartment (533). The opening at the top of the water-absorbing component (55) faces downward and extends out of the inner compartment (533), and the bottom of the water-absorbing component (55) extends to the storage compartment (54).

9. The structure of a new energy prefabricated substation as described in claim 8, characterized in that, The water-absorbing component (55) has multiple capillary channels (551) evenly arranged in the circumferential direction inside. The multiple capillary channels (551) are used to absorb the water that gradually rises in the outer compartment (531) and transport it to the storage compartment (54).

10. The structure of a new energy prefabricated substation as described in claim 6, characterized in that, The dehumidification component (56) includes a filter cotton (561) coaxially disposed inside the inner chamber (533) and the storage chamber (54). A mesh plate (562) is disposed at the bottom end of the filter cotton (561), and the mesh plate (562) is disposed on the side of the storage chamber (54) facing the axis.

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