Movable positive pressure dust removal device for field installation of extra-high voltage GIS (Gas Insulated Switchgear) power equipment

Abstract

The utility model provides a movable positive-pressure dust removal device for field installation of extra-high voltage GIS (gas insulated switchgear) power equipment, and belongs to the technical field of GIS installation. Comprising a dust-proof working chamber, a first secondary dust-proof pipeline channel, a second secondary dust-proof pipeline channel and a secondary dust-proof people flow channel, the first secondary dustproof pipeline channel and the second secondary dustproof pipeline channel are oppositely arranged on the two sides of the dustproof operation chamber, and each of the first secondary dustproof pipeline channel and the second secondary dustproof pipeline channel comprises a pipeline channel primary dustproof door and a pipeline channel secondary dustproof door which are oppositely arranged; the secondary dustproof pedestrian flow channel comprises a pedestrian flow channel primary dustproof door and a pedestrian flow channel secondary dustproof door which are oppositely arranged, the pedestrian flow channel secondary dustproof door is arranged on the side face of the first secondary dustproof pipeline channel, and the probability that the closed inner door and the closed outer door are opened at the same time can be greatly reduced by designing the secondary doors. And outdoor tiny dust particles are effectively prevented from entering the operation space along with people flow or material flow, so that the installation quality of the GIS equipment is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of GIS installation technology, specifically to a mobile positive pressure dust removal device for on-site installation of ultra-high voltage GIS power equipment. Background Technology

[0002] GIS, short for Gas Insulated Enclosed Switchgear, boasts numerous advantages such as small footprint, high safety performance, minimal environmental impact, and convenient use and maintenance, making it widely used in substations of various voltage levels. Its complex structure necessitates stringent requirements for air cleanliness, relative humidity, and installation precision during installation. However, GIS installation sites are often in harsh environments with heavy traffic and high dust levels, making environmental control difficult and prone to causing equipment malfunctions due to installation issues. Currently, dustproof sheds are typically erected during GIS installation. These sheds utilize a main frame and plastic film to quickly create a relatively isolated indoor space in the outdoor environment, preventing dust from entering during installation. However, existing dustproof sheds require workers or power line conduits to constantly open the shed doors, allowing outdoor dust particles to enter the work area with the flow of people or materials, thus affecting the installation of the GIS equipment. Summary of the Invention

[0003] In view of this, the present invention provides a mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment, in order to solve the technical problem that outdoor dust particles will enter the work space with the flow of people or materials when using existing GIS installation dustproof sheds.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment includes: a dust-proof work chamber, a first and second secondary dust-proof pipeline channel, a second secondary dust-proof pipeline channel, and a secondary dust-proof personnel flow channel. The first and second secondary dust-proof pipeline channels are arranged opposite each other on both sides of the dust-proof work chamber. Each of the first and second secondary dust-proof pipeline channels includes a primary dust-proof door and a secondary dust-proof door arranged opposite each other, so that the pipeline to be installed can pass through the secondary dust-proof pipeline channel and enter the dust-proof work chamber through the secondary dust-proof door. The secondary dust-proof personnel flow channel includes a primary dust-proof door and a secondary dust-proof door arranged opposite each other, and the secondary dust-proof door is located on the side of the first and second secondary dust-proof pipeline channels, so that the secondary dust-proof personnel flow channel is connected to the first and second secondary dust-proof pipeline channels, for allowing personnel to enter the dust-proof work chamber for equipment installation.

[0006] Preferably, the primary dustproof door of the pipeline channel is provided with a first pipeline elastic sealing ring; the secondary dustproof door of the pipeline channel is provided with a first magnetic curtain, and the first magnetic curtain is provided with a second pipeline elastic sealing ring; the second and secondary dustproof pipeline channels have the same structure as the first and secondary dustproof pipeline channels.

[0007] Preferably, a second magnetic curtain is provided on the primary dustproof door and the secondary dustproof door of the pedestrian passage.

[0008] Preferably, the dustproof work room, the first and second dustproof pipeline channels, the second and third dustproof pipeline channels, and the second dustproof personnel flow channel are each assembled from several frames, pillars, first cover plates, and second cover plates.

[0009] Preferably, the frame includes a frame and a first assembly part, the first assembly part is disposed at the four corners of the frame and is perpendicular to the frame; the interior of the first assembly part is hollow for assembly with the support column; the sides of the first assembly part are symmetrically provided with slots for fixed connection with the support column or other frame by long bolts.

[0010] Preferably, the upper and lower ends of the support column are respectively provided with a second assembly part, the outer diameter of the second assembly part is slightly smaller than the inner diameter of the first assembly part, so that the second assembly part can be inserted into the first assembly part to realize the assembly of the frame and the support column; the side of the second assembly part is provided with a slot corresponding to the first assembly part.

[0011] Preferably, a first magnetic attraction part is provided between two adjacent first assembly parts, a second magnetic attraction part is provided along the length direction of the support column, and magnetic attraction strips are provided around the first cover plate; the magnetic attraction strips on the upper and lower sides of the first cover plate are tightly attached to the first magnetic attraction part under the action of magnetic force, and the magnetic attraction strips on the left and right sides of the first cover plate are tightly attached to the second magnetic attraction part under the action of magnetic force, so as to realize the assembly between the first cover plate and the frame and the support column.

[0012] Preferably, a third assembly part is provided extending inward from the upper surface of the frame, and an assembly hole is provided on the surface of the third assembly part. The second cover plate has the same size as the third assembly part, and the second cover plate has the same assembly hole as the third assembly part, so as to fix the second cover plate to the frame through the assembly hole.

[0013] Preferably, the mobile positive pressure dust removal device is further equipped with an air purifier and an air supply pipe. The air outlet of the air supply pipe is connected to the dustproof work chamber. The air purifier delivers purified air to the dustproof work chamber through the air supply pipe to maintain a positive pressure state inside the dustproof work chamber.

[0014] Preferably, the dustproof work chamber is also equipped with an air microparticle sensor for detecting the air quality inside the dustproof work chamber.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model discloses a mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment. During use, the UHV GIS power equipment to be installed is placed in a dust-proof work chamber. The power lines to be installed pass through the primary and secondary dust-proof conduit channels on both sides of the dust-proof work chamber. As the power lines pass through, the primary dust-proof door and the secondary dust-proof door of the conduit channel are opened sequentially to prevent outdoor dust particles from entering the dust-proof work chamber. Simultaneously, the secondary dust-proof personnel flow channel is connected to the primary and secondary dust-proof conduit channels on one side. During normal operation, personnel only enter the conduit channel and then the dust-proof work chamber through this channel. The secondary door design significantly reduces the probability of the inner and outer sealed doors being opened simultaneously, effectively limiting the entry of outdoor dust particles into the work space with personnel or material flow, thereby effectively improving the installation quality of the GIS equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the mobile positive pressure dust removal device for on-site installation of ultra-high voltage GIS power equipment according to this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the first pipeline elastic sealing ring.

[0019] Figure 3 This is a schematic diagram of the structure of the second pipeline elastic sealing ring.

[0020] Figure 4 This is a schematic diagram of the second magnetic curtain.

[0021] Figure 5 This is a schematic diagram of the framework.

[0022] Figure 6 This is a schematic diagram of the assembly between the frames.

[0023] Figure 7 for Figure 6 Enlarged diagram of point A in the middle.

[0024] Figure 8 This is a structural diagram of a support column.

[0025] Figure 9 This is a schematic diagram of the assembly between the frame and the support.

[0026] Figure 10 This is a structural diagram of the frame from another angle.

[0027] In the diagram: Dustproof work chamber 100, primary and secondary dustproof pipeline channels 210, primary dustproof door of pipeline channel 211, secondary dustproof door of pipeline channel 212, first magnetic curtain 213, first pipeline elastic sealing ring 214, O-ring 2141, elastic part 2142, first spring ring 2143, second pipeline elastic sealing ring 215, first semi-circular sealing ring 2151, second semi-circular sealing ring 2152, third semi-circular sealing ring 2153, fourth semi-circular sealing ring 2154, second spring ring 2155, secondary and secondary dustproof pipeline channels 220, and so on. Secondary dustproof passageway 300, primary dustproof door of passageway 310, secondary dustproof door of passageway 320, second magnetic curtain 330, first curtain 331, second curtain 332, connecting rod 340, frame 400, side frame 410, first assembly part 420, slot 430, long bolt 440, first magnetic part 450, third assembly part 460, support column 500, second assembly part 510, second magnetic part 520, first cover plate 600, second cover plate 700, air purifier 800, air duct 810, air micro particle sensor 900. Detailed Implementation

[0028] The technical solutions and effects of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0029] Please refer to Figure 1 A mobile positive pressure dust removal device for on-site installation of ultra-high voltage GIS power equipment includes: a dust-proof work chamber 100, primary and secondary dust-proof pipeline channels 210, secondary dust-proof pipeline channels 220, and a secondary dust-proof personnel flow channel 300; the primary and secondary dust-proof pipeline channels 210 and 220 are arranged opposite to each other on both sides of the dust-proof work chamber 100, and each of the primary and secondary dust-proof pipeline channels 210 and 220 includes a primary dust-proof door 211 and a secondary dust-proof door 212 arranged opposite to each other. The secondary dustproof door 212 of the pipeline channel is set on one side of the dustproof work room 100 so that the pipeline to be installed can enter the dustproof work room through the secondary dustproof pipeline channel and the secondary dustproof door of the pipeline channel; the secondary dustproof personnel flow channel 300 includes a primary dustproof door 310 and a secondary dustproof door 320 of the personnel flow channel arranged opposite to each other, and the secondary dustproof door 320 of the personnel flow channel is set on the side of the primary and secondary dustproof pipeline channel 210 so that the secondary dustproof personnel flow channel is connected to the primary and secondary dustproof pipeline channel, and is used to allow personnel to enter the dustproof work room to install equipment.

[0030] This utility model discloses a mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment. During use, the UHV GIS power equipment to be installed is placed in a dust-proof work chamber. The power lines to be installed pass through the primary and secondary dust-proof conduit channels on both sides of the dust-proof work chamber. As the power lines pass through, the primary dust-proof door and the secondary dust-proof door of the conduit channel are opened sequentially to prevent outdoor dust particles from entering the dust-proof work chamber. Simultaneously, the secondary dust-proof personnel flow channel is connected to the primary and secondary dust-proof conduit channels on one side. During normal operation, personnel only enter the conduit channel and then the dust-proof work chamber through this channel. The secondary door design significantly reduces the probability of the inner and outer sealed doors being opened simultaneously, effectively limiting the entry of outdoor dust particles into the work space with personnel or material flow, thereby effectively improving the installation quality of the GIS equipment.

[0031] In some implementations, please also refer to Figures 1 to 3 The primary dustproof door 211 of the pipeline channel is equipped with a first pipeline elastic sealing ring 214; the secondary dustproof door 212 of the pipeline channel is equipped with a first magnetic curtain 213, and a second pipeline elastic sealing ring 215 is installed on the first magnetic curtain 213; the second and secondary dustproof pipeline channel 220 has the same structure as the first and secondary dustproof pipeline channel 210. For details, please refer to... Figure 2 The first pipe elastic sealing ring includes O-rings 2141 on both sides and an elastic part 2142 disposed between the two O-rings. The O-rings and the elastic part form a groove for accommodating a first spring ring 2143. The diameter of the first spring ring 2143 is smaller than the diameter of the O-rings in its normal state, causing the elastic part to be compressed inwards when the power line conduit is not inserted. One O-ring is fixed to the primary dustproof door 211 of the conduit channel, while the other O-ring extends outwards. After the mobile positive pressure dust removal device is assembled, the power line conduit to be installed is passed through the first pipe elastic sealing ring 214. While the first spring ring 2143 is stretched, it still provides pre-tightening force to the power line conduit to be installed, ensuring that the O-rings 2141 and the elastic part 2142 are tightly fitted onto the power line conduit, thus guaranteeing a sealing effect and preventing outdoor dust particles from entering the secondary dustproof conduit channel.

[0032] Further, please see Figure 3The second pipe elastic sealing ring 215 is installed on the first magnetic curtain 213 of the secondary dustproof door 212 of the pipeline channel. Since workers enter the secondary dustproof personnel flow channel and then enter the dustproof work room 100 through the first and second dustproof pipeline channels 210, the structure of the second pipe elastic sealing ring 215 must ensure that workers can enter the dustproof work room 100 through the secondary dustproof door of the pipeline channel. Specifically, the second pipe elastic sealing ring 215 includes a first semicircular sealing ring 2151, a second semicircular sealing ring 2152, and elastic parts provided on the first semicircular sealing ring 2151 and the second semicircular sealing ring 2152. The first semicircular sealing ring 2151 is fixed on the left side curtain of the first magnetic curtain. The second pipe elastic sealing ring 215 also includes a third semicircular sealing ring 2153, a fourth semicircular sealing ring 2154, and elastic parts provided on the third semicircular sealing ring 2153 and the fourth semicircular sealing ring 2154. The third semicircular sealing ring is fixed on the right side curtain of the first magnetic curtain. When the left and right side curtains of the first magnetic curtain are closed, the first semi-circular sealing ring 2151 and the third semi-circular sealing ring 2153 on the second pipe elastic sealing ring 215 form a complete O-ring seal, and the second semi-circular sealing ring 2152 and the fourth semi-circular sealing ring 2154 form a complete O-ring seal. Similarly, a second spring ring 2155 is provided on the second pipe elastic sealing ring 215 to ensure its sealing effect. When personnel enter the dustproof work chamber through the secondary dustproof door of the pipeline channel, the semi-circular sealing rings and the second spring ring of the second pipe elastic sealing ring ensure a good seal while facilitating entry and exit from the dustproof work chamber.

[0033] In some implementations, please refer to Figure 4 A second magnetic curtain 330 is installed on the primary dustproof door 310 and the secondary dustproof door 320 of the pedestrian passage. Specifically, the second magnetic curtain includes a first curtain 331 and a second curtain 332 with rectangular structures arranged side by side. Magnetic strips are provided on the left, right and lower sides of the first curtain 331 and the second curtain 332. The magnetic poles of the magnetic strips on the right side of the first curtain 331 and the left side of the second curtain 332 are arranged in opposite directions to attract each other, making it easy to open and close the second magnetic curtain. The magnetic strips along the entire side can tightly fit the first and second curtains together, preventing external dust particles from entering the secondary dustproof pedestrian passage. After the staff enters the secondary dustproof pedestrian passage, the second magnetic curtain can close quickly due to the attraction between the magnets, reducing the amount of dust particles entering the secondary dustproof pedestrian passage with the staff.

[0034] Further, please see Figure 1The dustproof work chamber 100, the primary and secondary dustproof pipeline channels 210, the secondary dustproof pipeline channels 220, and the secondary dustproof personnel flow channel 300 are each assembled from several frames 400, supports 500, first cover plates 600, and second cover plates 700. This utility model's mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment adopts a separate design for the frame, supports, first cover plate, and second cover plate, allowing for on-site assembly, convenient use, and providing a good environment for the assembly of GIS power equipment. In some embodiments, the frame 400 and supports 500 are made of stainless steel, and the first cover plate 600 and second cover plate 700 are made of lightweight PVC tempered glass or PVC glass cloth.

[0035] In some implementations, please refer to Figure 5 The frame 400 includes a side frame 410 and a first assembly part 420. The first assembly part 420 is located at the four corners of the frame 400 and is perpendicular to the side frame 410. The interior of the first assembly part 420 is hollow and is used for assembly with the support column 500. The sides of the first assembly part 420 are symmetrically provided with slot holes 430 for fixed connection with the support column or other frame by long bolts.

[0036] In some implementations, when assembling the frame with other frames, the positions of the frames are first determined, then the slots at the contact points of the two frames are aligned, and finally, the long bolts 440 are passed through the two frames and secured with nuts. This facilitates quick and easy assembly of the frame with other frames. As an example, please also refer to... Figure 6 and Figure 7 The figure shows a schematic diagram of the assembly structure between the top frame 400a of the dustproof work room 100, the top frame 400b of the first and second dustproof pipeline channel 210, and the top frame 400c of the second dustproof personnel flow channel 300. According to the designed installation positions, first position the three frames. Place one side of the top frame 400b of the primary and secondary dustproof pipeline channel against one side of the top frame 400a of the dustproof work chamber. After aligning the slots, pass the long bolts 440 through the two frames and secure them against the lower end of the slots. Place the other side of the top frame 400b of the primary and secondary dustproof pipeline channel against one side of the top frame 400c of the secondary dustproof personnel flow channel. After aligning the slots, pass the long bolts 440 through the two frames and secure them against the upper end of the slots. The two long bolts 440 do not interfere with each other, thus achieving the assembly of the top frame 400a of the dustproof work chamber 100, the top frame 400b of the primary and secondary dustproof pipeline channel 210, and the top frame 400c of the secondary dustproof personnel flow channel 300. The slots allow at least two long bolts 440 to pass through simultaneously, thus accommodating the assembly of multiple frames at the same time.

[0037] In some implementations, the frame size varies for each region, depending on its function. As an example, such as... Figure 1 As shown, the dustproof work chamber 100 is used for the installation of GIS equipment. Since the dustproof work chamber is where the GIS equipment will be placed, it has the largest area. The dimensions of the upper and lower frames of the dustproof work chamber are determined based on the size of the GIS equipment to be placed within it. The first and second dustproof pipe channels 210 and 220 are for the pipes to be installed to pass through. Therefore, the dimensions of the upper and lower frames of the first and second dustproof pipe channels can be determined based on the length of the pipes. The secondary dustproof personnel flow channel 300 is for personnel to enter the dustproof work chamber 100. Therefore, the dimensions of the upper and lower frames of the second dustproof personnel flow channel can be designed to be smaller, as long as it can accommodate personnel. The above description is only an example; different frame dimensions can be determined according to actual needs and are not limited here. However, it is understood that although the frame dimensions differ in different areas, the structure of the frames in different areas is the same, i.e., they all include a frame 410 and a first assembly part 420.

[0038] In some implementations, please refer to Figure 8 The upper and lower ends of the support column 500 are respectively provided with second assembly parts 510. The outer diameter of the second assembly part 510 is slightly smaller than the inner diameter of the first assembly part 420, so that the second assembly part 510 can be inserted into the first assembly part 420 to realize the assembly of the frame 400 and the support column 500. The side of the second assembly part 510 is provided with slots corresponding to the first assembly part 420. Specifically, when assembling the frame and the support column, the second assembly part 510 of the support column is inserted into the first assembly part 420 of the frame, the slots on the second assembly part 510 and the first assembly part 420 are aligned, and a long bolt is passed through the aligned slots to realize the assembly of the frame and the support column. The structure of the frame and the support column is simple and can be easily assembled, thereby improving the assembly efficiency of the mobile positive pressure dust collector.

[0039] As an example, when assembling the dustproof work chamber, the second assembly part 510 at the upper end of the support column is inserted into the first assembly part 420 of the frame at the top of the dustproof work chamber, aligning the slots on the second assembly part 510 and the first assembly part 420. A long bolt is then passed through the aligned slots to securely connect the upper end of the support column to the frame at the top of the dustproof work chamber. Then, the second assembly part 510 at the lower end of the support column is inserted into the first assembly part 420 of the frame at the bottom of the dustproof work chamber, aligning the slots on the second assembly part 510 and the first assembly part 420. A long bolt is then passed through the aligned slots to securely connect the lower end of the support column to the frame at the bottom of the dustproof work chamber. Using the same method, the other three support columns are assembled with the first assembly parts at the other three corners of the frame, thus quickly assembling the overall frame of the dustproof work chamber. Finally, the first and second cover panels complete the construction of the dustproof work chamber.

[0040] Furthermore, as an example, the assembly of the dustproof workroom 100, the primary and secondary dustproof piping channels 210, and the secondary dustproof personnel flow channel 300 involves not only the assembly of the frame and supports, but also the assembly of the frame with other frames. Therefore, during the assembly process, it is necessary to ensure that the slots between the frames and the slots in the supports are aligned simultaneously. A detailed explanation will be given using the assembly between the secondary dustproof personnel flow channel 300 and the primary and secondary dustproof piping channels 210 as an example. Figure 9 As shown, one side of the top frame 400b of the first and secondary dustproof pipeline channels is pressed tightly against one side of the top frame 400c of the secondary dustproof personnel flow channel, and the strip holes of the first mounting part 420a of the top frame 400b and the first mounting part 420b of the top frame 400c that are in contact are aligned; then the second mounting part at the upper end of the support column 500a is inserted into the first mounting part 420a, and the strip holes of the second mounting part at the upper end of the support column 500a and the first mounting part 420a are aligned; the second mounting part at the upper end of the support column 500b is inserted into the first mounting part 420b, and the strip holes of the second mounting part at the upper end of the support column 500b and the first mounting part 420b are aligned. When the corresponding strip holes of the first mounting part 420a, the first mounting part 420b, the second mounting part at the upper end of the support column 500a, and the second mounting part at the upper end of the support column 500b are aligned, the long bolt is passed through the aligned strip holes and fixed. Thus, the top frame 400b of the first and second dustproof pipeline channel 210 can be assembled with the top frame 400c of the second dustproof personnel flow channel 300, the top frame 400b and the support column 500a, and the top frame 400c and the support column 500b using a single long bolt. This allows for convenient and quick assembly, and also reduces the number of assembly parts and lowers assembly costs.

[0041] In some implementations, please refer to Figure 10A first magnetic attraction part 450 is provided between two adjacent first assembly parts 420, and a second magnetic attraction part 520 is provided along the length of the support column 500. Magnetic strips are provided around the perimeter of the first cover plate 600. The magnetic strips on the upper and lower sides of the first cover plate 600 are tightly attached to the first magnetic attraction part 450 under the action of magnetic force, and the magnetic strips on the left and right sides of the first cover plate 600 are tightly attached to the second magnetic attraction part 520 under the action of magnetic force, so as to realize the assembly between the first cover plate 600 and the frame 400 and the support column 500. When assembling the first cover plate, simply place the upper and lower sides of the first cover plate on the first magnetic attraction part, and the left and right sides of the first cover plate on the second magnetic attraction part. Under the action of magnetic force, the first cover plate can automatically adhere to the support column and the frame, thus realizing the assembly between the first cover plate and the frame and the support column with simple operation and improving assembly efficiency. The size of the first cover plate is determined according to the length of the frame and the height of the support column to ensure that the magnetic strip of the first cover plate can correspond to and fit perfectly with the positions of the first magnetic part and the second magnetic part.

[0042] In some implementations, please refer again Figure 10 A third assembly portion 460 extends inward from the upper surface of the frame 410. The surface of the third assembly portion 460 has assembly holes. The second cover plate 700 has the same dimensions as the third assembly portion 460, and the second cover plate 700 also has the same assembly holes as the third assembly portion 460, allowing the second cover plate 700 to be fixedly connected to the frame 400 through these holes. The thickness of the third assembly portion is less than the thickness of the frame 410, facilitating the assembly of the second cover plate and the third assembly portion. Furthermore, the second cover plate has assembly holes of the same size and position as the third assembly portion. After aligning the assembly holes on the second cover plate and the third assembly portion, the second cover plate and the third assembly portion are fixedly connected by bolts. In some embodiments, the second cover plate can be installed on the upper surface or the lower surface of the third assembly portion; this is not limited here.

[0043] In some embodiments, the upper surface of the third assembly may also be provided with a magnetic suction part, thereby abutting the magnetic strips around the first cover plate with the magnetic suction part on the third assembly to achieve a seal on the upper part of the frame 400. As an example, the upper surface of the third assembly of the frame at the top of the dustproof work chamber 100 is provided with a magnetic suction part, and the first cover plate is placed on the upper surface of the third assembly to seal the top of the dustproof work chamber; at the same time, the second cover plate is installed on the lower surface of the third assembly on the bottom frame of the dustproof work chamber 100, and the second cover plate is fixed to the bottom frame by bolts passing through the assembly holes, thereby achieving a seal on the bottom of the dustproof work chamber.

[0044] In some implementations, please refer to Figure 4The left magnetic strip of the first curtain 331 is attached to the second magnetic part of the left support column, and the right magnetic strip of the second curtain 332 is attached to the second magnetic part of the right support column. The lower magnetic strips of the first curtain 331 and the second curtain 332 of the primary dustproof door of the pedestrian passage are attached to the first magnetic part at the front end of the bottom frame. Both the first curtain 331 and the second curtain 332 have cylindrical connecting units and magnetic strips on their upper sides for the connecting rod 340 to pass through. The connecting rod 340 passes through the cylindrical connecting unit, and both ends of the connecting rod are fixed to the first mounting parts at both ends of the top frame, thereby fixing the upper side of the second magnetic curtain to the top frame and ensuring that the second magnetic curtain will not fall when opened. Simultaneously, the upper magnetic curtain is tightly attached to the first magnetic part of the top frame by magnetic force, ensuring the sealing effect of the second magnetic curtain.

[0045] Furthermore, the secondary dustproof passageway 300 also includes a top frame, a bottom frame, four pillars, and a first cover plate. The second magnetic curtain of the primary dustproof door of the passageway is tightly attached to the left front pillar, the right front pillar, and the bottom frame via magnets, and is fixedly attached to the top frame via connecting rods and magnetic strips; the second magnetic curtain of the secondary dustproof door of the passageway is tightly attached to the left rear pillar, the right rear pillar, and the bottom frame via magnets, and is fixedly attached to the top frame via connecting rods and magnetic strips. In some embodiments, such as... Figure 8 As shown, a second magnetic attraction part is provided on each of the two adjacent sides of the pillar. Therefore, the left magnetic strip of the first cover plate on the left side can be tightly attached to the other second magnetic attraction part of the left front pillar. At the same time, the first cover plate on the left side is also tightly attached to the top frame, bottom frame, and left rear pillar through magnets. Similarly, the first cover plate on the right side is tightly attached to the top frame, bottom frame, right front pillar, and right rear pillar through magnets. Thus, the top frame, bottom frame, four pillars, first cover plate, second magnetic curtain of the primary dustproof door of the pedestrian passage, and second magnetic curtain of the secondary dustproof door of the pedestrian passage form a sealed space for the secondary dustproof pedestrian passage.

[0046] Further, please see Figure 1 The mobile positive pressure dust removal device is also equipped with an air purifier 800 and an air duct 810. The air inlet of the air duct 810 is connected to the dust-proof work chamber 100. The air purifier 800 delivers purified air to the dust-proof work chamber 100 through the air duct 810 to maintain a positive pressure state inside the dust-proof work chamber 100. Specifically, the first cover plate at the front of the dust-proof work chamber has an opening at the lower position for the air inlet of the air duct 810 to enter. After being purified and dust-removed by the air purifier 800, the outside air flows into the dust-proof work chamber 100 through the air duct 810. At the same time, an air outlet is provided at the upper position of the first cover plate on the other side of the dust-proof work chamber, and an exhaust fan is installed at the air outlet to exhaust the air inside the dust-proof work chamber.

[0047] Further, please see Figure 1 The dust-proof work chamber is also equipped with an air particle sensor 900 to detect the air quality inside. This allows for real-time monitoring of the air quality and adjustment of the air purifier's airflow. Specifically, the air particle sensor communicates wirelessly with the air purifier, transmitting the detected particle content data wirelessly. The air purifier stores a table mapping different particle contents to varying airflow qualities. It queries this table based on the received particle content data to find the appropriate airflow quality and then re-delivers air to the dust-proof work chamber accordingly. Additionally, a pressure sensor is installed inside the dust-proof work chamber to detect the air pressure. This sensor sends the detected pressure value to the air purifier to adjust its airflow.

[0048] Specifically, after setting up the mobile positive pressure dust removal device, dust removal begins. Simultaneously, air purifiers and exhaust fans are turned on to create a fresh air circulation through the air inlet and outlet, expelling fine dust particles from the dust-proof work chamber. During the dust removal process, air particle sensors monitor the particle content within the dust-proof work chamber in real time. When the particle content reaches a set value, the exhaust fan is turned off, and the airflow at the air inlet is adjusted based on the air pressure value detected by the pressure sensor, thereby maintaining the set positive pressure environment within the dust-proof work chamber.

[0049] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A mobile positive pressure dust removal device for on-site installation of ultra-high voltage GIS power equipment, characterized in that, include: Dust-proof work room, primary and secondary dust-proof pipeline channels, secondary and secondary dust-proof pipeline channels, and secondary dust-proof personnel flow channels; The first and second secondary dustproof pipeline channels are arranged opposite each other on both sides of the dustproof work chamber. Each of the first and second secondary dustproof pipeline channels includes a primary dustproof door and a secondary dustproof door arranged opposite each other, so that the pipeline to be installed can enter the dustproof work chamber through the secondary dustproof pipeline channel and the secondary dustproof door. The secondary dustproof personnel flow channel includes a primary dustproof door and a secondary dustproof door arranged opposite each other, and the secondary dustproof door is located on the side of the first and second secondary dustproof pipeline channels, so that the secondary dustproof personnel flow channel is connected to the first and second secondary dustproof pipeline channels, for the purpose of allowing personnel to enter the dustproof work chamber to install equipment.

2. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 1, characterized in that, The primary dustproof door of the pipeline channel is equipped with a first pipeline elastic sealing ring; the secondary dustproof door of the pipeline channel is equipped with a first magnetic curtain, and the first magnetic curtain is equipped with a second pipeline elastic sealing ring; the second and secondary dustproof pipeline channels have the same structure as the first and secondary dustproof pipeline channels.

3. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 1, characterized in that, A second magnetic curtain is installed on the primary dustproof door and the secondary dustproof door of the pedestrian passage.

4. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 3, characterized in that, The dustproof work room, the first and second dustproof pipeline channels, the second and second dustproof pipeline channels, and the second dustproof personnel flow channel are each assembled from several frames, pillars, first cover plates, and second cover plates.

5. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 4, characterized in that, The frame includes a frame and a first assembly part, which is disposed at the four corners of the frame and perpendicular to the frame. The interior of the first assembly part is hollow for assembly with the support column. The sides of the first assembly part are symmetrically provided with slots for fixed connection with the support column or other frame by long bolts.

6. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 5, characterized in that, The upper and lower ends of the support column are respectively provided with a second assembly part. The outer diameter of the second assembly part is slightly smaller than the inner diameter of the first assembly part, so that the second assembly part can be inserted into the first assembly part to realize the assembly of the frame and the support column. The side of the second assembly part is provided with a slot corresponding to the first assembly part.

7. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 6, characterized in that, A first magnetic attraction part is provided between two adjacent first assembly parts, and a second magnetic attraction part is provided along the length direction of the support column. Magnetic strips are provided around the first cover plate. The magnetic strips on the upper and lower sides of the first cover plate are tightly attached to the first magnetic attraction part under the action of magnetic force, and the magnetic strips on the left and right sides of the first cover plate are tightly attached to the second magnetic attraction part under the action of magnetic force, so as to realize the assembly between the first cover plate and the frame and the support column.

8. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 5, characterized in that, The upper surface of the frame extends inward to form a third assembly part, and the surface of the third assembly part has an assembly hole. The second cover plate has the same size as the third assembly part, and the second cover plate has the same assembly hole as the third assembly part, so as to fix the second cover plate to the frame through the assembly hole.

9. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 1, characterized in that, The mobile positive pressure dust removal device is also equipped with an air purifier and an air supply pipe. The air outlet of the air supply pipe is connected to the dustproof work chamber. The air purifier delivers purified air to the dustproof work chamber through the air supply pipe to maintain a positive pressure state inside the dustproof work chamber.

10. The mobile positive pressure dust removal device for on-site installation of UHV GIS power equipment according to claim 1, characterized in that, The dustproof work chamber is also equipped with an air microparticle sensor to detect the air quality inside the dustproof work chamber.

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