Modular integrated assembly structure of a box-type distribution substation

Abstract

The application discloses a kind of modular integrated assembly structure of box-type power distribution substation, including base, high voltage box, transformer box, low voltage box, three exhaust components, humidity sensor, controller, first dryer and reversing piece, three box bodies are installed on base.Three exhaust components are respectively installed on high voltage box, transformer box, low voltage box.Base is provided with first air passage, second air passage, third air passage, fourth air passage, first air passage penetrates base, second air passage and third air passage are communicated with fourth air passage respectively, fourth air passage is communicated with high voltage box, transformer box, low voltage box, and first dryer is installed on third air passage.Humidity sensor is installed in external environment, controller is electrically connected with humidity sensor and reversing piece, and based on the signal sent by humidity sensor, the operation of reversing piece is controlled, so that first air passage is communicated with second air passage, or first air passage is communicated with third air passage.The application solves the problem that box-type substation is difficult to consider heat dissipation and waterproofing.

Description

Technical Field

[0001] This invention relates to the field of prefabricated substation technology, and particularly to a modular integrated assembly structure for a prefabricated distribution substation. Background Technology

[0002] A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor / outdoor power distribution unit that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution equipment according to a specific wiring scheme. It organically combines transformer voltage reduction and low-voltage power distribution functions, all housed in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, theft-proof, heat-insulated, fully enclosed, and movable steel structure box. It is particularly suitable for urban power grid construction and renovation, and represents a new type of substation that has emerged after traditional civil engineering substations. Prefabricated substations are suitable for mines, factories, oil and gas fields, and wind power stations, replacing traditional civil engineering substations and becoming a new type of complete power distribution system.

[0003] Existing prefabricated substations are mostly integrated structures, not modular. If a separate control unit needs to be disassembled, the entire substation enclosure must be removed, the individual control unit disassembled, and then the enclosure reassembled – a cumbersome and costly process. Furthermore, existing prefabricated substations typically rely on natural cooling through ventilation louvers, which is relatively inefficient. Moreover, existing prefabricated substations generally struggle to balance heat dissipation and waterproofing. Summary of the Invention

[0004] The main objective of this invention is to provide a modular integrated assembly structure for a prefabricated substation to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a modular integrated assembly structure for a box-type power distribution substation, including a base, a high-voltage box, a transformer box, a low-voltage box, a three-stage exhaust assembly, a humidity sensor, a controller, a first dryer, and a commutator, wherein the high-voltage box, the transformer box, and the low-voltage box are all mounted on the base; Each exhaust assembly includes an exhaust pipe, an air pump, and a second dryer. The air pump and the second dryer are respectively installed inside the exhaust pipe. The three exhaust pipes are respectively connected to the high-voltage box, the transformer box, and the low-voltage box. The base has a first air passage, a second air passage, a third air passage, and a fourth air passage. The first air passage passes through the base. The second air passage and the third air passage are respectively connected to the fourth air passage. The fourth air passage is connected to the high-voltage box, the transformer box, and the low-voltage box. The first dryer is installed on the third air passage. The humidity sensor is installed on the outside of the high-voltage box, transformer box, and low-voltage box. The controller is electrically connected to the humidity sensor and the commutator, and controls the operation of the commutator based on the signal transmitted by the humidity sensor, so that the first air passage is connected to the second air passage, or the first air passage is connected to the third air passage.

[0006] In an optional embodiment, the base includes a base and a mounting block. The base has a receiving cavity, the reversing member is disposed in the receiving cavity, the mounting block is disposed in the receiving cavity and blocks the receiving cavity, and the first air passage is opened on the mounting block.

[0007] In an optional embodiment, the reversing component is a three-position three-way solenoid valve, wherein the air inlet of the three-position three-way solenoid valve is connected to the first air passage, and the two air outlets are respectively connected to the second air passage and the third air passage.

[0008] In an optional embodiment, the base is further provided with a fifth air passage, a sixth air passage, and a seventh air passage that are respectively connected to the fourth air passage. One end of the fifth air passage, the sixth air passage, and the seventh air passage relative to the fourth air passage is respectively connected to the high-voltage box, the transformer box, and the low-voltage box. The modular integrated assembly structure of the box-type power distribution substation also includes three temperature sensors and three electromagnetic gate valves, all of which are electrically connected to the controller. The three temperature sensors are respectively installed in the high-voltage box, the transformer box, and the low-voltage box. The three electromagnetic gate valves are respectively installed in the fifth, sixth, and seventh air passages. The three air pumps are respectively electrically connected to the controller.

[0009] In an optional embodiment, the base has a limiting groove, the high-voltage box, the transformer box, and the low-voltage box are arranged side by side in the limiting groove and abut against the side wall of the limiting groove, and adjacent boxes abut against each other, so that the high-voltage box, the transformer box, and the low-voltage box are securely installed on the base, and the second air passage, the third air passage, and the fourth air passage are opened on the base.

[0010] In an optional embodiment, the modular integrated assembly structure of the box-type power distribution substation further includes several connecting blocks and bolt groups. Several connecting blocks are provided on the outside of the high-voltage box, the transformer box, and the low-voltage box, and the connecting blocks on adjacent boxes are fastened together by bolt groups.

[0011] In an optional embodiment, the modular integrated assembly structure of the box-type power distribution substation further includes an installation frame disposed inside the low-voltage box. The installation frame includes two vertical beams and several first horizontal beams. The two vertical beams are respectively installed on the inner wall of the low-voltage box, and the two ends of the several first horizontal beams are respectively connected to the two vertical beams. Each first horizontal beam has several first mounting parts.

[0012] In an optional embodiment, the modular integrated assembly structure of the box-type power distribution substation further includes a support plate disposed inside the high-voltage box. The support plate is installed on the inner wall of the high-voltage box and is provided with a plurality of second mounting parts.

[0013] In an optional embodiment, the modular integrated assembly structure of the box-type substation further includes a second crossbeam, which is installed on the inner wall of the high-voltage box, and the first crossbeam and the second crossbeam have approximately the same structural dimensions.

[0014] In an optional embodiment, the modular integrated assembly structure of the box-type power distribution substation further includes a protective net, which is disposed inside the first air duct.

[0015] Compared with the prior art, the present invention has the following technical effects: 1. In this application, a second and a third air duct are provided. The second air duct is a conventional air duct, and the cooling air entering from the second air duct does not require drying treatment. The third air duct is equipped with a first dryer, allowing the cooling air entering from the third air duct to undergo drying treatment. When the cooling air passes through the third air duct, the first dryer absorbs the vast majority of the moisture, thus drying the cooling air and preventing excessive moisture from being carried into the high-voltage box, transformer box, and low-voltage box. A humidity sensor, controller, and commutation element (three-position three-way solenoid valve) are used to automatically determine and control whether the cooling air enters the high-voltage box, transformer box, or low-voltage box from the second or third air duct. That is, the system automatically determines whether the cooling air needs to be dried and automatically controls whether the cooling air undergoes drying treatment.

[0016] When the high-voltage box, transformer box, and low-voltage box are not being ventilated for heat dissipation, the controller keeps the commutator (three-position three-way solenoid valve) in a de-energized state. The valve core of the commutator (three-position three-way solenoid valve) is in the "neutral position". The air inlet and the two air outlets of the three-position three-way solenoid valve are closed to each other. That is, the first air passage, the second air passage, and the third air passage are all in a "broken circuit" state to prevent water vapor, dust, small animals, etc. from entering the high-voltage box, transformer box, and low-voltage box.

[0017] 2. This application also employs three electromagnetic gate valves and three temperature sensors. The three temperature sensors are used to detect the temperatures of the high-voltage box, transformer box, and low-voltage box, respectively. The three electromagnetic gate valves are used to control the opening and closing of the air passages in the high-voltage box, transformer box, and low-voltage box, respectively. Together with the controller, they can automatically determine and control the exhaust ventilation and heat dissipation of the high-voltage box, transformer box, and low-voltage box. This allows the high-voltage box, transformer box, and low-voltage box to exhaust ventilation and heat dissipation simultaneously, or to exhaust ventilation and heat dissipation individually.

[0018] The aforementioned technical measures enhance the intelligence and automation of ventilation and heat dissipation operations in the modular integrated assembly structure of prefabricated substations, and solve the problem that existing prefabricated substations generally struggle to balance heat dissipation and waterproofing.

[0019] 3. The modular integrated assembly structure of the box-type substation in this application adopts high-voltage box, transformer box and low-voltage box modularly assembled on the base, so that the substation can be modularized. The high-voltage switchgear, transformer and low-voltage power distribution equipment can be in a separate position and can be separated and installed at any time. It has the advantages of simple structure and convenient assembly and use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a modular integrated assembly structure for a prefabricated substation according to this application; Figure 2 This is a front view of a modular integrated assembly structure for a prefabricated substation according to this application; Figure 3 This is a top view of a modular integrated assembly structure for a prefabricated substation according to this application; Figure 4 This is a schematic diagram of a modular integrated assembly structure of a prefabricated substation according to this application.

[0022] Explanation of icon numbers: 1 base 503 Second dryer 101 First airway 6 Humidity sensor 102 Second airway 7 controller 103 Third airway 8 First dryer 104 Fourth airway 9 Commutator 105 base 10 Solenoid gate valve 106 Mounting Block 11 Connecting block 107 Containment cavity 12 Bolt assembly 108 Fifth airway 13 Mounting rack 109 Sixth airway 1301 vertical beam 1010 Seventh airway 1302 First crossbeam 1011 Limiting groove 1303 First Installation Department 2 High-voltage box 14 support plate 3 Transformer box 1401 Second Installation Department 4 Low-pressure box 15 Second crossbeam 5 Exhaust components 16 protective net 501 exhaust pipe 17 Temperature sensor The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention 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 the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0025] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0026] Please refer to Figures 1-4 This invention proposes a modular integrated assembly structure 100 for a box-type power distribution substation.

[0027] In this embodiment of the invention, the modular integrated assembly structure 100 of the box-type power distribution substation includes a base 1, a high-voltage box 2, a transformer box 3, a low-voltage box 4, a three-stage exhaust assembly 5, a humidity sensor 6, a controller 7, a first dryer 8, and a commutator 9. The high-voltage box 2, the transformer box 3, and the low-voltage box 4 are all mounted on the base 1.

[0028] Each exhaust assembly 5 includes an exhaust pipe 501, an air pump 502, and a second dryer 503. The air pump 502 and the second dryer 503 are respectively installed inside the exhaust pipe 501. The three exhaust pipes 501 are respectively connected to the high-voltage box 2, the transformer box 3, and the low-voltage box 4. The second dryer 503 is used to prevent moisture from entering the high-voltage box 2, the transformer box 3, and the low-voltage box 4 when they are not being ventilated for heat dissipation.

[0029] The base 1 has a first air passage 101, a second air passage 102, a third air passage 103, and a fourth air passage 104. The first air passage 101 passes through the base 1. The second air passage 102 and the third air passage 103 are respectively connected to the fourth air passage 104. The fourth air passage 104 is connected to the high-voltage box 2, the transformer box 3, and the low-voltage box 4. The first dryer 8 is installed on the third air passage 103.

[0030] Humidity sensor 6 is installed on the outside of high-voltage box 2, transformer box 3, and low-voltage box 4. Controller 7 is electrically connected to humidity sensor 6 and commutator 9, and controls commutator 9 to operate based on the signal transmitted by humidity sensor 6, so that the first air passage 101 is connected to the second air passage 102, or the first air passage 101 is connected to the third air passage 103.

[0031] The high-voltage box 2, transformer box 3, and low-voltage box 4 are all rectangular boxes, each with an openable and closable door on its front side. The first dryer 8 and the second dryer 503 are conventional dryers containing one or more combinations of silica, crystalline aluminosilicate, and alumina. In the exhaust assembly 5, one end of the exhaust pipe 501 connects to the box body, and the other end connects to the external environment. The second dryer 503 is located at the inner end of the exhaust pipe 501, and the suction pump 502 is located at the outer end of the exhaust pipe 501.

[0032] The controller 7 can be located inside the low-voltage box 4, or outside the high-voltage box 2, transformer box 3, and low-voltage box 4, such as mounted on the base 1, with a rain shield to cover the controller 7. The controller 7 can be a microcontroller, microprocessor, or other data processing chip, which will not be elaborated here. The humidity sensor 6 is mounted on the base 1, with a rain shield to cover the humidity sensor 6. The humidity sensor 6 is used to detect the humidity of the external environment and transmit the detected humidity information to the controller 7.

[0033] When the external ambient humidity does not reach the preset value, the controller 7 controls the reversing component to operate, so that the first air duct 101 and the second air duct 102 are connected. When the exhaust pump 502 of the exhaust assembly of the high-voltage box 2, transformer box 3, and low-voltage box 4 draws air out of the box, the exhaust assembly starts to exhaust air. Fresh cooling air enters the high-voltage box 2, transformer box 3, and low-voltage box 4 from the first air duct 101, the second air duct 102, and the fourth air duct 104 to dissipate heat from the electrical equipment in the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0034] When the external ambient humidity reaches a preset value, the controller 7 controls the commutator to operate, connecting the first air duct 101 and the third air duct 103. When the exhaust assemblies of the high-voltage box 2, transformer box 3, and low-voltage box 4 begin exhausting, fresh cooling air enters the high-voltage box 2, transformer box 3, and low-voltage box 4 from the first air duct 101, third air duct 103, and fourth air duct 104, dissipating heat from the electrical equipment within these boxes. Specifically, when the cooling air passes through the third air duct 103, it passes through the first dryer 8, which absorbs the vast majority of the moisture, thus drying the cooling air and preventing excessive moisture from being carried into the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0035] In order to realize the installation and application of the commutator, the base 1 includes a base 105 and a mounting block 106. The base 1 has a receiving cavity 107, the commutator 9 is disposed in the receiving cavity 107, the mounting block 106 is disposed in the receiving cavity 107 and blocks the receiving cavity 107, and the first air passage 101 is opened on the mounting block 106.

[0036] Among them, the reversing component 9 is a dual-electrically controlled three-position three-way solenoid valve. The air inlet of the three-position three-way solenoid valve is connected to the first air passage 101, and the two air outlets are connected to the second air passage 102 and the third air passage 103, respectively. When the high-voltage box 2, transformer box 3, and low-voltage box 4 do not require exhaust ventilation, the controller 7 controls the three-position three-way solenoid valve to be de-energized. The valve core of the three-position three-way solenoid valve is in the "neutral position". The air inlet and the two air outlets of the three-position three-way solenoid valve are closed to each other. That is, the first air passage 101, the second air passage 102, and the third air passage 103 are all in the "open circuit" state, preventing water vapor, dust, small animals, etc. from entering the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0037] When the high-voltage box 2, transformer box 3, and low-voltage box 4 require ventilation and heat dissipation, and the external ambient humidity does not reach the preset value, the controller 7 controls the three-position three-way solenoid valve to be energized in the "left position." The valve core of the three-position three-way solenoid valve shifts, and the air inlet of the three-position three-way solenoid valve is connected to the air outlet of the second air passage 102, thereby connecting the first air passage 101 to the second air passage 102. The ventilation components of the high-voltage box 2, transformer box 3, and low-voltage box 4 begin to exhaust air. Fresh cooling air enters the high-voltage box 2, transformer box 3, and low-voltage box 4 from the first air passage 101, the second air passage 102, and the fourth air passage 104, dissipating heat from the electrical equipment inside the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0038] When the high-voltage box 2, transformer box 3, and low-voltage box 4 require ventilation and heat dissipation, and the external ambient humidity reaches a preset value, the controller 7 controls the three-position three-way solenoid valve to be energized in the right position. The valve core of the three-position three-way solenoid valve shifts, and the air inlet of the three-position three-way solenoid valve is connected to the air outlet of the third air passage 103, thereby connecting the first air passage 101 to the third air passage 103. The ventilation components of the high-voltage box 2, transformer box 3, and low-voltage box 4 begin to exhaust air. Fresh cooling air enters the high-voltage box 2, transformer box 3, and low-voltage box 4 from the first air passage 101, the third air passage 103, and the fourth air passage 104 to dissipate heat from the electrical equipment inside the high-voltage box 2, transformer box 3, and low-voltage box 4. Among them, when the cooling air passes through the third air passage 103, it passes through the first dryer 8 to absorb most of the moisture, thus drying the cooling air and preventing excessive moisture from being carried into the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0039] Please refer to Figure 4 and Figure 2In one embodiment of this application, the base 105 is further provided with a fifth air passage 108, a sixth air passage 109, and a seventh air passage 1010, which are respectively connected to the fourth air passage 104. Through holes are provided on the bottom sides of the high-voltage box 2, the transformer box 3, and the low-voltage box 4. One end of the fifth air passage 108, the sixth air passage 109, and the seventh air passage 1010 relative to the fourth air passage 104 is connected to the high-voltage box 2, the transformer box 3, and the low-voltage box 4 respectively through the through holes.

[0040] The modular integrated assembly structure 100 of the box-type power distribution substation also includes three temperature sensors 17 and three electromagnetic gate valves 10, all of which are electrically connected to the controller 7. The three temperature sensors 17 are respectively installed in the high-voltage box 2, the transformer box 3, and the low-voltage box 4. The three electromagnetic gate valves 10 are respectively installed in the fifth air passage 108, the sixth air passage 109, and the seventh air passage 1010. The three air pumps 502 are respectively electrically connected to the controller 7.

[0041] The three temperature sensors 17 are used to detect the temperature inside the high-voltage box 2, the transformer box 3, and the low-voltage box 4, respectively, and transmit the detected temperature information to the controller 7.

[0042] When the temperature inside the high-pressure chamber 2 does not reach the preset value, the controller 7 controls the solenoid valve 10 in the fifth air passage 108 to close, so that the fifth air passage 108 is in an "open circuit" state, and the fourth air passage 104 is not connected to the high-pressure chamber 2. When the temperature inside the high-pressure chamber 2 reaches the preset value, the controller 7 controls the exhaust pump 502 of the exhaust assembly of the high-pressure chamber 2 to draw air out of the high-pressure chamber 2, and the exhaust assembly of the high-pressure chamber 2 begins to exhaust air. The controller 7 simultaneously controls the three-position three-way solenoid valve to be "right position energized" or "left position energized", so that the first air passage 101 is connected to the second air passage 102, or the first air passage 101 is connected to the third air passage 103. The controller 7 also simultaneously controls the solenoid valve 10 in the fifth air passage 108 to open, so that the fifth air passage 108 is connected to the fourth air passage 104 and the high-pressure chamber 2.

[0043] When the temperature inside the transformer box 3 does not reach the preset value, the controller 7 controls the solenoid valve 10 in the sixth air passage 109 to close, so that the sixth air passage 109 is in an "open circuit" state, and the fourth air passage 104 is not connected to the transformer box 3. When the temperature inside the transformer box 3 reaches the preset value, the controller 7 controls the exhaust pump 502 of the exhaust assembly of the transformer box 3 to draw air out of the transformer box 3, and the exhaust assembly of the transformer box 3 begins to exhaust air. The controller 7 simultaneously controls the three-position three-way solenoid valve to be "right position energized" or "left position energized", so that the first air passage 101 is connected to the second air passage 102, or the first air passage 101 is connected to the third air passage 103. The controller 7 also simultaneously controls the solenoid valve 10 in the sixth air passage 109 to open, so that the sixth air passage 109 is connected to the fourth air passage 104 and the transformer box 3.

[0044] When the temperature inside the low-pressure chamber 4 does not reach the preset value, the controller 7 controls the solenoid valve 10 in the seventh air passage 1010 to close, so that the seventh air passage 1010 is in an "open circuit" state, and the fourth air passage 104 is not connected to the low-pressure chamber 4. When the temperature inside the low-pressure chamber 4 reaches the preset value, the controller 7 controls the air pump 502 of the exhaust assembly of the low-pressure chamber 4 to draw air out of the low-pressure chamber 4, and the exhaust assembly of the low-pressure chamber 4 begins to exhaust air. The controller 7 simultaneously controls the three-position three-way solenoid valve to be "right position energized" or "left position energized", so that the first air passage 101 is connected to the second air passage 102, or the first air passage 101 is connected to the third air passage 103. The controller 7 also simultaneously controls the solenoid valve 10 in the seventh air passage 1010 to open, so that the sixth air passage 109 is connected to the fourth air passage 104 and the low-pressure chamber 4.

[0045] When the temperatures inside the high-voltage box 2, transformer box 3, and low-voltage box 4 do not reach the preset values, the controller 7 does not control the three-position three-way solenoid valve to be "energized in the right position" or "energized in the left position". The three-position three-way solenoid valve is in the de-energized state, the valve core of the three-position three-way solenoid valve is in the "neutral position", and the air inlet and the two air outlets of the three-position three-way solenoid valve are closed to each other. That is, the first air passage 101, the second air passage 102, and the third air passage 103 are all in the "open circuit" state to prevent water vapor, dust, small animals, etc. from entering the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0046] In this application, by setting a second air duct 102 and a third air duct 103, the second air duct 102 is a conventional air duct, and the cooling air entering from the second air duct 102 does not need to undergo drying treatment. The third air duct 103 is equipped with a first dryer 8, so the cooling air entering from the third air duct 103 can undergo drying treatment. When the cooling air passes through the third air duct 103, the first dryer 8 absorbs the vast majority of the moisture, thus drying the cooling air and preventing excessive moisture from being carried into the high-voltage box 2, transformer box 3, and low-voltage box 4. A humidity sensor 6, a controller 7, and a three-position three-way solenoid valve are used to automatically determine and control whether the cooling air enters the high-voltage box 2, transformer box 3, or low-voltage box 4 from the second air duct 102 or the third air duct 103, that is, automatically determine whether the cooling air needs to be dried and automatically control whether the cooling air undergoes drying treatment.

[0047] When the high-voltage box 2, transformer box 3, and low-voltage box 4 are not being ventilated for heat dissipation, the controller 7 controls the three-position three-way solenoid valve to be in the de-energized state. The valve core of the three-position three-way solenoid valve is in the "neutral position". The air inlet and the two air outlets of the three-position three-way solenoid valve are closed to each other. That is, the first air passage 101, the second air passage 102, and the third air passage 103 are all in the "open circuit" state to prevent water vapor, dust, small animals, etc. from entering the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0048] This application also employs three electromagnetic gate valves 10 and three temperature sensors 17. The three temperature sensors 17 are used to detect the temperature of the high-voltage box 2, transformer box 3, and low-voltage box 4, respectively. The three electromagnetic gate valves 10 are used to control the opening and closing of the air passages of the high-voltage box 2, transformer box 3, and low-voltage box 4, respectively. Together with the controller 7, they can automatically determine and control the exhaust ventilation and heat dissipation of the high-voltage box 2, transformer box 3, and low-voltage box 4. This allows the high-voltage box 2, transformer box 3, and low-voltage box 4 to exhaust ventilation and heat dissipation simultaneously, or to exhaust ventilation and heat dissipation individually.

[0049] The aforementioned technical measures enhance the intelligence and automation of the 100% exhaust ventilation and heat dissipation operation of the modular integrated assembly structure of the prefabricated substation, and solve the problem that existing prefabricated substations generally cannot simultaneously achieve heat dissipation and waterproofing.

[0050] Please refer to Figure 4 and Figure 1 In one embodiment of this application, the base 105 is provided with a limiting groove 1011. The high-voltage box 2, the transformer box 3, and the low-voltage box 4 are arranged side by side in the limiting groove 1011 and abut against the side wall of the limiting groove 1011 respectively. The adjacent boxes abut against each other so that the high-voltage box 2, the transformer box 3, and the low-voltage box 4 are securely installed on the base 105. The second air passage 102, the third air passage 103, and the fourth air passage 104 are provided on the base 105.

[0051] The high-voltage box 2, transformer box 3, and low-voltage box 4 are arranged side by side from right to left within the limiting groove 1011. The left and right sides of the transformer box 3 abut against the low-voltage box 4 and the high-voltage box 2, respectively. The left side of the low-voltage box 4 and the right side of the high-voltage box 2 abut against the side wall of the limiting groove 1011. Furthermore, the front and rear sides of the high-voltage box 2, transformer box 3, and low-voltage box 4 abut against the side wall of the limiting groove 1011, thereby improving the installation stability of the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0052] The modular integrated assembly structure 100 of the prefabricated substation also includes several connecting blocks 11 and bolt groups 12 (bolts and nuts). Several connecting blocks 11 are provided on the outer sides of the high-voltage box 2, transformer box 3, and low-voltage box 4. The connecting blocks 11 on adjacent boxes are fastened together by bolt groups 12. To ensure a balanced force distribution during the fastening connection of the high-voltage box 2, transformer box 3, and low-voltage box 4, connecting blocks 11 are provided on both the front and rear sides of the high-voltage box 2, transformer box 3, and low-voltage box 4. The connecting blocks 11 on adjacent boxes are fastened together by bolt groups 12, improving the installation stability of the high-voltage box 2, transformer box 3, and low-voltage box 4.

[0053] The modular integrated assembly structure 100 of the box-type substation adopts high-voltage box 2, transformer box 3, and low-voltage box 4 modularly assembled on base 1, which enables the substation to be modular. The high-voltage switchgear, transformer and low-voltage power distribution equipment can be located in their own positions and can be separated and installed at any time. It has the advantages of simple structure and convenient assembly and use.

[0054] Please refer to Figure 2 The modular integrated assembly structure 100 of the box-type power distribution substation also includes a mounting frame 13 installed inside the low-voltage box 4. The mounting frame 13 includes two vertical beams 1301 and several first horizontal beams 1302. The two vertical beams 1301 are respectively installed on the inner wall of the low-voltage box 4. The two ends of the several first horizontal beams 1302 are respectively connected to the two vertical beams 1301. Each first horizontal beam 1302 is provided with several first mounting parts 1303.

[0055] The two vertical beams 1301 are respectively installed on the rear inner wall of the low-voltage box 4 by screw connection, and are arranged opposite to each other in the left-right direction of the low-voltage box 4. The two ends of each first horizontal beam 1302 are respectively connected to the two vertical beams 1301 by bolt connection (bolt and nut). The first mounting part 1303 is designed in the form of one of the following: threaded hole, bolt hole (through hole), through groove or groove, for installing electrical equipment in the low-voltage box, such as low-voltage main switch, feeder switch, current transformer, compensation capacitor, etc.

[0056] Similarly, the modular integrated assembly structure 100 of the prefabricated substation also includes a support plate 14 installed inside the high-voltage box 2. The support plate 14 is mounted on the inner wall of the high-voltage box 2 and has several second mounting parts 1401. The support plate 14 is installed on the left and right inner side walls of the high-voltage box 2 by means of screw connections and is used to support and install large electrical equipment such as high-voltage vacuum circuit breakers and disconnector switch operating mechanisms. The second mounting parts 1401 are designed to accommodate connections such as screw holes, bolt holes (through holes), or clips at the connection points of large electrical equipment such as high-voltage vacuum circuit breakers and disconnector switch operating mechanisms.

[0057] The modular integrated assembly structure 100 of the prefabricated substation also includes a second crossbeam 15, which is installed on the inner wall of the high-voltage box 2. The first crossbeam 1302 and the second crossbeam 15 have approximately the same structural dimensions. The second crossbeam 15 is installed on the left and right inner side walls of the high-voltage box 2 by means of screw connection, and is used to install small electronic components such as relays, current / voltage transformers, measuring instruments, control switches and indicator lights.

[0058] In one embodiment of this application, the modular integrated assembly structure 100 of the box-type power distribution substation further includes a protective net 16, which is disposed inside the first airway 101 to prevent small animals such as mice and snakes from crawling into the first airway 101.

[0059] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A modular integrated assembly structure for a prefabricated substation, characterized in that, It includes a base, a high-voltage box, a transformer box, a low-voltage box, a three-exhaust assembly, a humidity sensor, a controller, a first dryer, and a commutator. The high-voltage box, the transformer box, and the low-voltage box are all mounted on the base. Each exhaust assembly includes an exhaust pipe, an air pump, and a second dryer. The air pump and the second dryer are respectively installed inside the exhaust pipe. The three exhaust pipes are respectively connected to the high-voltage box, the transformer box, and the low-voltage box. The base has a first air passage, a second air passage, a third air passage, and a fourth air passage. The first air passage passes through the base. The second air passage and the third air passage are respectively connected to the fourth air passage. The fourth air passage is connected to the high-voltage box, the transformer box, and the low-voltage box. The first dryer is installed on the third air passage. The humidity sensor is installed on the outside of the high-voltage box, transformer box, and low-voltage box. The controller is electrically connected to the humidity sensor and the commutator, and controls the operation of the commutator based on the signal transmitted by the humidity sensor, so that the first air passage is connected to the second air passage, or the first air passage is connected to the third air passage.

2. The modular integrated assembly structure of a prefabricated substation as described in claim 1, characterized in that, The base includes a base and a mounting block. The base has a receiving cavity. The reversing component is disposed in the receiving cavity. The mounting block is disposed in the receiving cavity and blocks the receiving cavity. The first air passage is opened on the mounting block.

3. The modular integrated assembly structure of a prefabricated substation as described in claim 2, characterized in that, The reversing component is a three-position three-way solenoid valve. The air inlet of the three-position three-way solenoid valve is connected to the first air passage, and the two air outlets are connected to the second air passage and the third air passage, respectively.

4. The modular integrated assembly structure of a prefabricated substation as described in claim 3, characterized in that, The base is also provided with a fifth, a sixth, and a seventh air passage that are respectively connected to the fourth air passage. One end of the fifth, sixth, and seventh air passages relative to the fourth air passage is respectively connected to the high-voltage box, the transformer box, and the low-voltage box. The modular integrated assembly structure of the box-type power distribution substation also includes three temperature sensors and three electromagnetic gate valves, all of which are electrically connected to the controller. The three temperature sensors are respectively installed in the high-voltage box, the transformer box, and the low-voltage box. The three electromagnetic gate valves are respectively installed in the fifth, sixth, and seventh air passages. The three air pumps are respectively electrically connected to the controller.

5. The modular integrated assembly structure of a prefabricated substation as described in claim 4, characterized in that, The base has a limiting groove, and the high-voltage box, the transformer box, and the low-voltage box are arranged side by side in the limiting groove and abut against the side wall of the limiting groove respectively. Adjacent boxes abut against each other so that the high-voltage box, the transformer box, and the low-voltage box are securely installed on the base. The second air passage, the third air passage, and the fourth air passage are opened on the base.

6. The modular integrated assembly structure of a prefabricated substation as described in claim 5, characterized in that, The modular integrated assembly structure of the box-type power distribution substation also includes several connecting blocks and bolt groups. Several connecting blocks are provided on the outside of the high-voltage box, the transformer box, and the low-voltage box. The connecting blocks on adjacent boxes are fastened together by bolt groups.

7. The modular integrated assembly structure of a prefabricated substation as described in claim 6, characterized in that, The modular integrated assembly structure of the box-type power distribution substation also includes an installation frame installed inside the low-voltage box. The installation frame includes two vertical beams and several first horizontal beams. The two vertical beams are respectively installed on the inner wall of the low-voltage box, and the two ends of the several first horizontal beams are respectively connected to the two vertical beams. Each first horizontal beam has several first mounting parts.

8. The modular integrated assembly structure of a prefabricated substation as described in claim 7, characterized in that, The modular integrated assembly structure of the box-type power distribution substation also includes a support plate installed inside the high-voltage box. The support plate is installed on the inner wall of the high-voltage box and has several second mounting parts.

9. The modular integrated assembly structure of a prefabricated substation as described in claim 8, characterized in that, The modular integrated assembly structure of the box-type power distribution substation also includes a second crossbeam, which is installed on the inner wall of the high-voltage box. The first crossbeam and the second crossbeam have approximately the same structural dimensions.

10. The modular integrated assembly structure of a prefabricated substation as described in claim 9, characterized in that, The modular integrated assembly structure of the box-type power distribution substation also includes a protective net, which is located inside the first air duct.

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