Ventilation system for prefabricated cabin of switchgear

Abstract

The utility model belongs to the technical field of prefabricated cabin ventilation equipment, and particularly relates to a ventilation system for a switch equipment prefabricated cabin, which comprises a bottom plate, a mounting groove formed in the bottom plate, a cabin plate mounted on the bottom plate, a top plate mounted on the cabin plate, a ventilation opening formed in the cabin plate, an air inlet pipe fixed in the ventilation opening, a fan assembly arranged in the air inlet pipe and an air outlet pipe fixed in the ventilation opening. The air outlet pipe is provided with a second filtering assembly, the air inlet pipe is clamped with a filtering box, the filtering box is provided with an air guide opening and a clamping groove, a first filtering plate is arranged in the clamping groove, and the filtering box is provided with a limiting assembly; the fan assembly is started firstly to enable air to flow, in the air flowing process, the air is filtered through the first filter plate, then the air cools the electrical equipment, and after the air is heated and floats upwards, the air is discharged from the air outlet pipe, so that dust and impurities can be prevented from entering the prefabricated cabin while the ventilation state is guaranteed, and the service life of the prefabricated cabin is prolonged. And electrical equipment is damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabricated cabin ventilation equipment, and in particular relates to a ventilation system for a prefabricated cabin of a switchgear. Background Art

[0002] The prefabricated cabin is an important embodiment of the new technologies, new materials and new equipment applied in smart substations. It is composed of a prefabricated cabin, secondary equipment cabinets (or racks), cabin auxiliary facilities, etc. The production, assembly, wiring, and debugging are completed in the factory, and it is transported to the project site as a whole. It is located on the installation basis, reducing on-site secondary wiring, reducing design, construction, debugging, and workload, simplifying inspection and maintenance work, shortening the construction period, and effectively supporting the rapid construction of the power grid. Since a variety of electrical equipment are installed in the prefabricated cabin, good ventilation is required, so a ventilation structure needs to be set up in the prefabricated cabin.

[0003] The ventilation structure of the prefabricated cabin in the prior art is mostly achieved by opening vents on the side walls of the cabin body and then arranging exhaust fans in the vents to achieve the effect of ventilation and heat dissipation in the prefabricated cabin. However, since the prefabricated cabin is set in an outdoor environment for a long time, dust, rainwater in the outside air or foreign objects floating in the wind can easily enter the interior of the prefabricated cabin through the vents, and then cause damage to the electrical equipment inside the prefabricated cabin. For this reason, we proposed a ventilation system for a switchgear prefabricated cabin to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a ventilation system for a prefabricated cabin of a switchgear, so as to solve the problems existing in the background technology.

[0005] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] A ventilation system for a switchgear prefabricated cabin comprises a bottom plate, the bottom plate is configured as a rectangular parallelepiped, a mounting groove is provided in the middle of the upper end of the bottom plate, cabin plates spliced ​​to each other are installed on four sides of the upper end of the bottom plate, a top plate is commonly installed on the upper ends of the respective cabin plates, a shielding plate is provided on the upper ends of the top plates, a sealing door is provided on the front cabin plate, two ventilation openings are provided on the lower side of the cabin plate on the right side and on the upper side of the cabin plate on the left side, air inlet pipes are fixed inside the two ventilation openings on the right side, fan assemblies are provided inside the two air inlet pipes, air outlet pipes are fixed inside the two ventilation openings on the left side, a first filter assembly is provided at one end of the two air inlet pipes extending out of the cabin plate, and a second filter assembly is provided at one end of the two air outlet pipes extending out of the cabin plate;

[0007] The first filter assembly includes a first filter plate, a filter box is clamped on the right end of the air inlet pipe, an air guide port connected to the air inlet pipe is formed at the right end of the filter box, a slot passing through the air guide port is formed at the upper end of the filter box, the first filter plate is arranged inside the slot, and a limiting assembly is provided on the upper side of the filter box.

[0008] Furthermore, the second filter assembly includes a second filter plate, and a completely penetrating through groove is formed at an upper end of one side of the air outlet pipe extending out of the cabin plate, and the second filter plate is arranged inside the through groove.

[0009] Furthermore, lower wind guide plates are symmetrically provided on the left and right sides of the upper end of the bottom plate, and an air duct connected to the mounting groove is opened at the right end of the lower wind guide plate on the right side, and an upper wind guide plate is provided between the upper sides of the front and rear cabin plates, and the upper wind guide plate is located directly above the mounting groove.

[0010] Furthermore, the limiting assembly includes a limiting plate, a slide groove is opened at the right end of the filter box, the limiting plate is slidably arranged inside the slide groove, an elastic member is arranged between the left end of the limiting plate and the slide groove, a lifting plate is arranged at the upper end of the first filter plate, and the lifting plate and the lower end of the limiting plate abut against each other.

[0011] Furthermore, a filter cover is clamped on one end of the air inlet pipe extending into the cabin plate.

[0012] Furthermore, a T-shaped wind shield is fixed to one end of the air outlet pipe extending into the cabin plate.

[0013] Furthermore, a clamping ring is provided on the upper end of the second filter plate.

[0014] The beneficial effects of the utility model are:

[0015] 1) By opening a vent with the left side higher and the right side lower, the installed air inlet pipe is lower than the air outlet pipe. In this way, after the cold air takes away the heat of the power equipment, it becomes hot air and can rise, and it is more convenient to be discharged from the air outlet pipe.

[0016] 2) The first filter plate can be directly inserted into the card slot to filter impurities and dust in the air. It has a simple structure and is easy to install and disassemble.

[0017] 3) The lower air guide plate on the right side can divide the air entering the prefabricated cabin into two parts. One part of the cold air blows directly to the power equipment to directly take away the temperature of the surface of the power equipment. The other part of the cold air can enter the installation slot from the air duct and blow upward from the bottom of the power equipment to further take away the temperature generated by the power equipment, thereby increasing the cooling effect on the power equipment. At the same time, the lower air guide plate and the upper air guide plate enable the flowing air to circulate inside the prefabricated cabin, thereby reducing the temperature inside the entire prefabricated cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the ventilation system for the switchgear prefabricated cabin of the utility model;

[0020] Figure 2 It is a schematic cross-sectional structure diagram of a ventilation system for a prefabricated cabin of a switchgear of the utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 for Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0023] Figure 5 for Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0024] The main component symbols are described as follows:

[0025] Bottom plate 100, mounting groove 101, cabin plate 102, top plate 103, baffle plate 104, sealing door 105, vent 106, air inlet pipe 107, fan assembly 108, air outlet pipe 109, first filter plate 200, filter box 201, air guide port 202, slot 203, second filter plate 300, through slot 301, lower air guide plate 400, air duct 401, upper air guide plate 402, limit plate 500, slide slot 501, elastic member 502, lifting plate 503, filter cover 600, T-shaped wind shield plate 601, snap ring 602. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment 1:

[0028] like Figure 1-Figure 5As shown, the ventilation system for the switchgear prefabricated cabin includes a bottom plate 100, which is set as a rectangular parallelepiped. The area of ​​the prefabricated cabin can be determined by the bottom plate 100. A mounting groove 101 is opened in the middle of the upper end of the bottom plate 100. Various power equipment can be installed inside the mounting groove 101. Cabin plates 102 spliced ​​with each other are installed on the four sides of the upper end of the bottom plate 100. A top plate 103 is installed on the upper end of each cabin plate 102. The bottom plate 100, the top plate 103 and each cabin plate 102 can be used together to form a ventilation system. The top plate 103 is provided with a shielding plate 104, which can provide a shielding effect for the top plate 103 of the prefabricated cabin to prevent rainwater from accumulating on the top plate 103 and causing rainwater leakage, thereby causing damage to the power equipment. The front cabin 102 is provided with a sealed door 105. By opening the sealed door 105, various power equipment can be moved into the prefabricated cabin. The lower side of the cabin 102 on the right and the upper side of the cabin 102 on the left are provided with two ventilation holes 106. Intake pipes 107 are fixed inside the two vents 106, and fan assemblies 108 are arranged inside the two intake pipes 107. Outlet pipes 109 are fixed inside the two vents 106 on the left. The vents 106 are arranged with the left higher and the right lower, so that the intake pipes 107 are lower than the outlet pipes 109. After the fan assembly 108 is started, cold air enters the prefabricated cabin through the intake pipes 107. The cold air will cool down the power equipment, and the cold air will also become hot air, so that the hot air will float up, The air is discharged from the upper air outlet pipe 109. One end of the two air inlet pipes 107 extending out of the cabin board 102 is provided with a first filter assembly. The first filter assembly can filter the air entering the interior of the air inlet pipe 107 to prevent external dust and impurities from entering the interior of the prefabricated cabin and affecting the power equipment. One end of the two air outlet pipes 109 extending out of the cabin board 102 is provided with a second filter assembly. When the fan assembly 108 stops, the second filter assembly can prevent external dust and impurities from entering the interior of the prefabricated cabin from the air outlet pipe 109.

[0029] The first filter component includes a first filter plate 200, which can filter dust and impurities in the air. A filter box 201 is connected to the right end of the air inlet pipe 107. An air guide port 202 connected to the air inlet pipe 107 is provided at the right end of the filter box 201. After the fan assembly 108 is started, the air will first pass through the air guide port 202 and then be filtered by the first filter plate 200 to obtain clean air. A slot 203 that passes through the air guide port 202 is provided at the upper end of the filter box 201. The first filter plate 200 is arranged inside the slot 203. The first filter plate 200 can be directly inserted into the slot 203, which is easy to install and more convenient to replace. A limit assembly is provided on the upper side of the filter box 201, which can limit the first filter plate 200 from being separated from the slot 203.

[0030] The second filter component includes a second filter plate 300. The air outlet pipe 109 extends out of the upper end of one side of the cabin plate 102 and is provided with a completely penetrating through groove 301. The second filter plate 300 is arranged inside the through groove 301. When the fan assembly 108 is not started, the second filter plate 300 can prevent external impurities and dust from entering the interior of the prefabricated cabin and affecting the electrical equipment.

[0031] When the ventilation of the prefabricated cabin is turned on: start the fan assembly 108, the fan assembly 108 can suck the outside cold air into the interior of the prefabricated cabin, and in the process of the cold air flowing into the interior of the prefabricated cabin, the cold air will first enter the interior of the air guide port 202. Since the card slot 203 runs through the entire air guide port 202, the filtering area of ​​the first filter plate 200 is larger than the area of ​​the air guide port 202, so that the cold air can be completely filtered. The clean cold air enters the interior of the prefabricated cabin through the fan assembly 108. When the cold air takes away the heat of the power equipment and becomes hot air, the hot air will float up and finally be discharged from the outlet pipe 109, so that it can be ensured that the prefabricated cabin will not bring in external impurities and dust to affect the power equipment when it is in a ventilated state.

[0032] In this embodiment, the air is made to flow by first starting the fan assembly 108. During the air flow, the air is then filtered by the first filter plate 200. The air then cools down the electrical equipment. After the air is heated and floats, it is discharged from the air outlet pipe 109. While ensuring ventilation, it can also prevent dust and impurities from entering the interior of the prefabricated cabin and causing damage to the electrical equipment.

[0033] Embodiment 2:

[0034] Based on the first embodiment, other components of the ventilation system are further described. Figure 2-Figure 5 As shown, lower air guide plates 400 are symmetrically provided on the left and right sides of the upper end of the bottom plate 100, and an air duct 401 connected to the mounting groove 101 is opened at the right end of the lower air guide plate 400 on the right side, and an upper air guide plate 402 is provided between the upper sides of the front and rear cabin plates 102, and the upper air guide plate 402 is located directly above the mounting groove 101.

[0035] The limiting assembly includes a limiting plate 500, a slide groove 501 is opened at the right end of the filter box 201, the limiting plate 500 is slidably arranged inside the slide groove 501, an elastic member 502 is arranged between the left end of the limiting plate 500 and the slide groove 501, and a lifting plate 503 is arranged at the upper end of the first filter plate 200, and the lifting plate 503 and the lower end of the limiting plate 500 are in contact with each other.

[0036] One end of the air inlet pipe 107 extending into the cabin plate 102 is clamped with a filter cover 600 .

[0037] A T-shaped wind shield 601 is fixed to one end of the air outlet pipe 109 extending into the cabin board 102 .

[0038] A snap ring 602 is disposed at the upper end of the second filter plate 300 .

[0039] In this embodiment, when the fan assembly 108 drives the air to start flowing: since the lower air guide plate 400 on the right side blocks the lower side of the inlet of the air inlet pipe 107, the air will be divided into two directions. When the air enters the prefabricated cabin from the upper inlet, it can be blown directly in the direction of the installed power equipment, thereby cooling the power equipment. When the air enters the prefabricated cabin from the lower inlet, it will first enter the air duct 401. Through the guidance of the air duct 401, the flowing air is blown out from the installation groove 101, which can cool the bottom of the power equipment. At the same time, it can also mix with the air flow on the upper side and rise together. Then, relying on the guidance of the upper air guide plate 402, the air on the right side can circulate to clean the dust and impurities inside the prefabricated cabin, while the air on the right side can be discharged from the outlet pipe 109 under the blocking of the T-shaped wind shield 601.

[0040] Pushing the limit plate 500 into the slide groove 501 will compress the elastic member 502. At the same time, the staff can lift the lifting plate 503 to more easily remove the first filter plate 200. After inserting the new first filter plate 200 into the slot 203, release the limit plate 500, and the compressed elastic member 502 will open, so that the limit plate 500 will press the lifting plate 503, thereby limiting the first filter plate 200.

[0041] The filter cover 600 can prevent debris from entering the air intake pipe 107, causing the air intake pipe 107 to be blocked and affecting the air circulation.

[0042] The staff can indirectly remove the second filter plate 300 from the through groove 301 by lifting the snap ring 602 , so that the second filter plate 300 can be quickly replaced.

[0043] In the description of the present invention, it should be understood that the terms "upper end", "one end", "right end", "middle", "inside", "front side", "right side", "left side", "lower side", "upper side", "one side", "both sides" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "setting", "installation", "splicing", "fixing", "clicking", "connection" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0045] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A ventilation system for a prefabricated switchgear cabin, comprising a bottom plate (100), characterized in that: The bottom plate (100) is configured as a rectangular parallelepiped, a mounting groove (101) is provided in the middle of the upper end of the bottom plate (100), and mutually spliced ​​cabin plates (102) are installed on four sides of the upper end of the bottom plate (100), and a top plate (103) is installed on the upper ends of the cabin plates (102), and a shielding plate (104) is provided on the upper ends of the top plates (103). The cabin plate (102) on the front side is provided with a sealing door (105), and the lower side of the cabin plate (102) on the right side and the upper side of the cabin plate (102) on the left side are both Two ventilation openings (106) are provided, an air inlet pipe (107) is fixed inside the two ventilation openings (106) on the right side, a fan assembly (108) is provided inside the two air inlet pipes (107), an air outlet pipe (109) is fixed inside the two ventilation openings (106) on the left side, a first filter assembly is provided at one end of the two air inlet pipes (107) extending out of the cabin plate (102), and a second filter assembly is provided at one end of the two air outlet pipes (109) extending out of the cabin plate (102); The first filter assembly comprises a first filter plate (200); a filter box (201) is clamped at the right end of the air inlet pipe (107); an air guide port (202) communicating with the air inlet pipe (107) is provided at the right end of the filter box (201); a clamping slot (203) passing through the air guide port (202) is provided at the upper end of the filter box (201); the first filter plate (200) is arranged inside the clamping slot (203); and a limit assembly is provided on the upper side of the filter box (201).

2. The ventilation system for a prefabricated switchgear cabin according to claim 1, characterized in that: The second filter assembly comprises a second filter plate (300), and a through groove (301) which completely penetrates the upper end of one side of the air outlet pipe (109) extending out of the cabin plate (102), and the second filter plate (300) is arranged inside the through groove (301).

3. The ventilation system for a prefabricated switchgear cabin according to claim 1, characterized in that: Lower air guide plates (400) are symmetrically arranged on the left and right sides of the upper end of the bottom plate (100); an air duct (401) communicating with the mounting groove (101) is opened at the right end of the lower air guide plate (400) on the right side; an upper air guide plate (402) is arranged between the upper sides of the front and rear cabin plates (102); and the upper air guide plate (402) is located directly above the mounting groove (101).

4. The ventilation system for a prefabricated switchgear cabin according to claim 1, characterized in that: The limiting assembly comprises a limiting plate (500), a slide groove (501) is provided at the right end of the filter box (201), the limiting plate (500) is slidably arranged inside the slide groove (501), an elastic member (502) is arranged between the left end of the limiting plate (500) and the slide groove (501), a lifting plate (503) is arranged at the upper end of the first filter plate (200), and the lifting plate (503) and the lower end of the limiting plate (500) are in contact with each other.

5. The ventilation system for a prefabricated switchgear cabin according to claim 1, characterized in that: One end of the air inlet pipe (107) extending into the cabin plate (102) is clamped with a filter cover (600).

6. The ventilation system for a prefabricated switchgear cabin according to claim 1, characterized in that: A T-shaped wind shield (601) is fixed to one end of the air outlet pipe (109) extending into the cabin plate (102).

7. The ventilation system for a switchgear prefabricated cabin according to claim 2, characterized in that: A snap ring (602) is provided at the upper end of the second filter plate (300).

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