A substation GIS equipment auxiliary installation device

Abstract

The present invention relates to a substation GIS equipment auxiliary installation device, comprising a box structure, an installation space environment adjustment mechanism, a movable installation mechanism and a main controller, wherein a conductive rod (6) is divided into two parts that can be connected. The box structure comprises an upper box (1) and a lower box (2), both of which are respectively sealed and connected to a fixedly installed GIS air chamber part; the movable installation mechanism comprises an upper guide rail (25), a lower guide rail (18), an upper bracket (27), a lower bracket (19), a telescopic sealing cover (20) and a GIS air chamber moving unit, wherein the upper guide rail (25) is arranged at the top of the upper box (1) inside the box, and the lower guide rail (18) is arranged at the bottom of the lower bracket (19) inside the box, and the upper bracket (27) and the lower bracket (19) can move along the upper guide rail (25) and the lower guide rail (18) respectively, and the upper bracket (27) and the lower bracket (19) are respectively sealed and connected to the upper box (1) and the lower box (2) through the telescopic sealing cover (20).

Description

Technical Field

[0001] The invention relates to the field of auxiliary installation devices for transformer substation equipment, and in particular to an auxiliary installation device and an installation method for transformer substation GIS equipment. Background Art

[0002] Gas-insulated metal-enclosed switchgear (hereinafter referred to as "GIS equipment") is a key equipment in substations and plays a vital role in the safe and stable operation of power grids. Due to its compact structure, small footprint, high operational reliability, small maintenance workload, and long maintenance cycle, it has been widely used in substation projects across the country. GIS equipment is used for high-voltage lines. Due to the small space inside the GIS air chamber, even a small amount of dust, water vapor, metal chips or fiber and other impurities may affect the insulation performance and cause partial discharge. Production practice has proved that most GIS failures are caused by partial discharge caused by tiny particles (dust, fine chips, etc.) and water vapor in the air chamber. Therefore, in order to ensure the insulation performance inside the air chamber, extremely high dust-free requirements are placed on the installation environment and installation process of GIS equipment.

[0003] Since many GIS equipment in substations are located outdoors, the installation process can only be carried out outdoors. To ensure dust-free installation, the existing technical methods are mainly divided into two types: 1) Building a dust-proof environment with a complex structure, such as CN206928716U (a dust-free installation device) and CN205388345U (a local dust-proof purification room for GIS equipment indoors), which has high cost, complex installation links, and low production efficiency; 2) Building a relatively simple installation environment, such as CN209217538U (a sealing device for dust-free installation and docking of GIS equipment) and CN105826845A (a dust-free maintenance device for GIS equipment insulation basin), which has a relatively simple structure and low cost, but the installation space is small and the dust-proof purification effect is poor. In summary, the existing technical means have obvious limitations, and the corresponding technical solutions can only monitor the temperature and humidity in the installation space in real time, and do not achieve a positive pressure environment through air pressure regulation (that is, the air pressure in the installation space is higher than the outside), so it cannot fundamentally ensure that outdoor floating dust enters the installation space.

[0004] In view of the above problems, the present invention provides a substation GIS auxiliary installation device and installation method. Through the environmental adjustment (air pressure, temperature, humidity, etc.) system, retractable installation mechanism, modular box and other technical solutions, the technical challenges faced by the outdoor dust-free installation of substation GIS can be effectively solved. Summary of the invention

[0005] In order to overcome the shortcomings of existing GIS installation technology and equipment, the present invention provides a substation GIS equipment auxiliary installation device. The overall technical solution can ensure the dust-free installation of GIS equipment, and has a simple structure, low cost, and high installation efficiency, which can effectively solve the technical challenges faced by the outdoor installation of substation GIS. The technical solution adopted by the present invention is as follows:

[0006] A substation GIS equipment auxiliary installation device includes a box structure, an installation space environment adjustment mechanism, a movable installation mechanism and a main controller. The conductive rod 6 is divided into two parts that can be docked, one part is located in the GIS air chamber part that has been fixed and installed, and the other part is located in the GIS air chamber part to be installed and docked.

[0007] The box structure includes an upper box 1 and a lower box 2, and the upper box 1 and the lower box 2 are respectively sealed and connected to the GIS air chamber part that has been fixedly installed;

[0008] The movable installation mechanism includes an upper guide rail 25, a lower guide rail 18, an upper bracket 27, a lower bracket 19, a retractable sealing cover 20 and a GIS air chamber moving unit. The upper guide rail 25 is arranged at the top of the upper box body 1 inside the box body, and the lower guide rail 18 is arranged at the bottom of the lower bracket 19 inside the box body. The upper guide rail and the lower guide rail are parallel to the conductive rod 6. The upper bracket 27 and the lower bracket 19 can move along the upper guide rail 25 and the lower guide rail 18 respectively. The upper bracket 27 and the lower bracket 19 are respectively sealed and connected to the upper box body 1 and the lower box body 2 through the retractable sealing cover 20. The upper bracket 27 and the lower bracket 19 are also sealed and connected to the GIS air chamber part to be installed and docked; the GIS air chamber part to be installed and docked moves under the drive of the GIS air chamber moving unit, thereby realizing the docking of the conductive rod 6 part located in the GIS air chamber part to be installed and docked with the conductive rod 6 part located in the GIS air chamber part that has been fixedly installed.

[0009] Furthermore, exhaust ports 11 and air inlets 15 are respectively provided at different positions of the box structure, and a GIS installation isolation door 32 is also provided on the box structure. The GIS installation isolation door 32 is sealed and connected to the air shower room 34 through a retractable sealing channel 33.

[0010] Furthermore, the installation space environment adjustment mechanism includes an exhaust pump 13, an exhaust pipe 12, an air filter 14, and an intake pump 16. The two ends of the exhaust pipe 12 are respectively connected to the exhaust port 11 and the exhaust pump 13. The air filter 14 is placed outside the box, and the intake pump 16 is placed inside the box. The air filter 14 and the intake pump 16 are respectively located at the two ends of the intake port 15.

[0011] Furthermore, the installation space environment adjustment mechanism also includes a sensor group 10, a temperature and humidity adjustment unit 9 and a vacuum cleaner 17. The temperature and humidity adjustment unit 9 and the vacuum cleaner 17 are placed inside the box, and the sensor group 10 is used to test the installation space environment conditions.

[0012] Furthermore, the sensor group 10 is used to test the air pressure, temperature, humidity and dust concentration of the installation space in the box.

[0013] Furthermore, the main controller 31 collects environmental conditions in the installation space based on the sensor group 10, and ensures that the air pressure in the installation space is higher than the external air pressure by controlling the pressure of the exhaust pump 13 and the air intake pump 16. The temperature and humidity are ensured to meet the operating standards through the temperature and humidity adjustment unit 9, and the dust concentration is made to meet the operating standards by adjusting the air pump and using the vacuum cleaner 17.

[0014] Furthermore, the GIS air chamber moving unit includes an external guide rail 21, a support rod 22, an electric push rod 23 and a push rod driving unit 24. The installation direction of the external guide rail 21 is parallel to the conductive rod 6. The upper part of the support rod 22 is tightly connected to the GIS air chamber part to be installed and docked, and the lower part of the support rod 22 can move along the external guide rail 21. One end of the electric push rod 23 is connected to the support rod 22, and the other end is fixed. The electric push rod 23 is driven by the push rod driving unit 24, so that the support rod 22 drives the GIS air chamber part to be installed and docked to move along the external guide rail 21; the main controller 31 controls the movement of the electric push rod 23 through the push rod driving unit 24 until the conductive rod 6 in the fixedly installed GIS air chamber part is tightly connected to the conductive rod 6 in the GIS air chamber part to be installed and docked.

[0015] Furthermore, the lower portion of the support rod 22 can move along the outer guide rail 21 via rollers.

[0016] Furthermore, the upper bracket 27 and the lower bracket 19 can move along the upper guide rail 25 and the lower guide rail 18 respectively through rollers.

[0017] Furthermore, there are more than two rows of conductive rods 6 that need to be connected. For each row of conductive rods 6 that need to be connected, a part is located in the GIS air chamber part that has been fixedly installed, and the other part is located in the GIS air chamber part to be installed and connected. The substation GIS equipment auxiliary installation device also includes an intermediate box plate 28, an intermediate bracket 29 and a side box plate 30. The intermediate box plate 28 is used for fixing and sealing connections between each row of GIS air chamber parts that have been fixedly installed, and the intermediate bracket 29 is used for fixed connections between each row of GIS air chamber parts to be installed and connected; the side box plate 30 is sealed and connected between the upper box body 1 and the lower box body 2. The upper box body, the lower box body, the intermediate box plate 28, the side box plate 30, the upper bracket 27, the lower bracket 19, the intermediate bracket 29 and the retractable sealing cover 20 are sealed and connected to form a sealed installation space.

[0018] The present invention provides a substation GIS auxiliary installation device and installation method. Through the air pressure regulating system, a positive pressure state is maintained in the installation room, effectively ensuring the cleanliness and dust-freeness of the installation environment; the mobile mechanism in the device facilitates the positioning, cleaning operation and mobile docking of the installed GIS air chamber; the box of the device adopts a modular and splicable structure, which is easy to build and disassemble and saves space. The overall technical solution can ensure the dust-free installation of GIS equipment, and has a simple structure, low cost, and high installation efficiency, which can effectively solve the technical challenges faced by the outdoor installation of substation GIS. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Figure 1: Schematic diagram of cleaning and installation structure of single-row GIS air chamber

[0020] Figure 2 Figure 2: AA view of a single-row GIS air chamber installation device

[0021] Figure 3 Figure 1: Schematic diagram of the cleaning and installation structure of the double-row GIS air chamber

[0022] Figure 4 Figure 2: BB side view of the double-row GIS air chamber installation device

[0023] Figure 5 Figure 1: CC view of a single-row GIS air chamber, i.e. the connection method between the installation device and the air shower room 34

[0024] Figure 6 DD view of the double-row GIS air chamber, i.e. the connection method between the installation device and the air shower room 34

[0025] Figure 7 For: Electrical control system architecture diagram of GIS installation device

[0026] The accompanying drawings are as follows:

[0027] 1-upper box; 2-lower box; 3-installation base; 4-fixed GIS air chamber part; 4_1-fixed GIS air chamber part on the upper side; 4_2-fixed GIS air chamber part on the lower side; 5-movable GIS air chamber; 5_1-movable GIS air chamber on the upper side; 5_2-movable GIS air chamber on the lower side; 6-conductive rod; 6_1-conductive rod of upper GIS air chamber; 6_2-conductive rod of lower GIS air chamber; 7-pot insulator; 7_1-pot insulator of upper GIS air chamber; 7_2-pot insulator of lower GIS air chamber; 8-sealing ring; 9-temperature and humidity regulating device; 10-sensor group; 11-exhaust port; 12-exhaust pipe; 13-vacuum pump; 14-air filter;

[0028] 15-air inlet; 16-air intake pump; 17-vacuum cleaner; 18-lower guide rail; 19-lower bracket; 20-retractable sealing cover; 21-external guide rail; 22-support rod; 23-electric push rod; 24-push rod drive unit; 25-upper guide rail; 26-roller; 27-upper bracket; 28-middle box board; 29-middle bracket; 30-side box board; 31-main controller; 32-GIS installation isolation door; 33-retractable sealing channel; 34-air shower room; 35-external support frame. DETAILED DESCRIPTION

[0029] The invention proposes a substation GIS auxiliary installation device, which is composed of a box structure, an installation space environment adjustment mechanism, a movable installation mechanism and a main controller. The improvement of its basic structure can enable it to have multiple application scenarios. The invention is further described in detail below in conjunction with the accompanying drawings and the specific implementation process.

[0030] 1. Example 1: Auxiliary installation device for single-row GIS equipment in a substation

[0031] 1. Overall structure

[0032] The single-row GIS auxiliary installation device for a substation described in the present invention is composed of a box structure, an installation space environment adjustment mechanism, a movable installation mechanism and a main controller. Figure 1 , Figure 2 and Figure 5 shown.

[0033] The box structure is placed on the installation base, and includes an upper box 1 and a lower box 2. The upper box 1 and the lower box 2 are fastened to the fixedly installed GIS air chamber part 4 (i.e., the fixedly installed GIS air chamber, the conductive rod 6 at one end of which has been connected and installed) through a sealing ring 8. An exhaust port 11 and an air inlet 15 are respectively opened on the upper box and the lower box. A door 32 is installed on the box structure, which can be connected to the air shower room 34 through a retractable sealing channel 33;

[0034] The installation space environment adjustment mechanism includes an air pump 13, an exhaust pipe 12, an air filter 14, an air intake pump 16, a sensor group 10, a temperature and humidity adjustment unit 9 and a dust collector 17, wherein the two ends of the exhaust pipe 12 are respectively connected to the exhaust port 11 and the air pump 13, the air filter 14 is installed outside the box, the air intake pump 16, the temperature and humidity adjustment unit 9 and the dust collector 17 are installed inside the box, the air filter 14 and the air intake pump 16 are respectively installed at both ends of the air intake port 15, and the sensor group 10 is installed in the upper box 1, including air pressure, temperature, humidity, dust concentration, etc., for testing the environmental conditions of the installation space;

[0035] The movable installation mechanism includes an upper guide rail 25, a lower guide rail 18, a roller 26, an upper bracket 27, a lower bracket 19, a retractable sealing cover 20, an external guide rail 21, a support rod 22, an electric push rod 23 and a push rod driving unit 24. The upper guide rail 25 is installed on the top of the upper box body 1 inside the box body, and the lower guide rail 18 is installed on the bottom of the lower bracket 19 inside the box body. The installation direction of the upper guide rail and the lower guide rail is parallel to the central axis of the GIS air chamber. The upper bracket and the lower bracket can be moved on the upper guide rail 25 and the lower guide rail 18 respectively through the rollers. The upper bracket 27 and the lower bracket 19 are also connected to the upper box body 1 and the lower box body 2 through the retractable sealing cover 20. The upper bracket 27 and the lower bracket 19 are fastened to the movable GIS air chamber 5 (the GIS air chamber that has not been installed and fastened, and both ends of its conductive rod 6 are not connected) through the sealing ring 8, the external guide rail 21 is installed on the installation base surface 3 outside the box body, and the installation direction of the external guide rail 21 is parallel to the central axis of the movable GIS air chamber 5. The upper part of the support rod 22 is fastened to the movable GIS air chamber 5, and the lower part of the support rod 22 can move on the external guide rail 21 through the roller 26. One end of the electric push rod 23 is connected to the support rod 22, and the other end is fixed. The electric push rod 23 is driven by the push rod driving unit 24 to make the support rod 22 move along the external guide rail 21;

[0036] The main controller 31 is connected to the sensor group 10 , the air extraction pump 13 , the air intake pump 16 , the vacuum cleaner 17 , the temperature and humidity adjustment unit 9 and the push rod driving unit 24 , respectively.

[0037] 2. Device connection method

[0038] When installing a single-row GIS air chamber, the upper box body 1 and the lower box body 2 are fastened to the already fixed GIS air chamber part 4 through the sealing ring 8, the upper bracket 27 and the lower bracket 19 are fastened to the already fixed GIS air chamber part 4 through the sealing ring 8, and the upper bracket 27 and the lower bracket 19 are fastened to the upper box body 1 and the lower box body 2 respectively through the retractable sealing cover 20

[0039] When installing a single-row GIS air chamber, the connection method ensures that a closed and sealed installation space is formed by the upper box body 1, the lower box body 2, the sealing ring 8, the fixedly installed GIS air chamber part 4, the upper bracket 27, the lower bracket 19, the sealing ring 8, the movable GIS air chamber 5, and the retractable sealing cover 20.

[0040] 3. GIS equipment implementation method

[0041] The dust-free installation method of the single-row GIS air chamber proposed by the present invention is:

[0042] 1) When installing a single-row GIS air chamber, assemble the upper box 1, the lower box 2, the sealing ring 8, the fixed GIS air chamber part 4, the upper bracket 27, the lower bracket 19, the sealing ring 8, the movable GIS air chamber 5, the retractable sealing cover 20, the upper guide rail 25, the lower guide rail 18, the suction pump 13, the intake pump 16, the air filter 14, and the sensor group 10 according to the aforementioned connection method to ensure that they form a closed and sealed installation space.

[0043] 2) The main controller 31 collects the air pressure, temperature, humidity and dust concentration in the installation space through the sensor group 10, and controls the pressure of the air pump 13 and the air intake pump 16 to ensure that the air pressure in the installation space is higher than the external air pressure. The temperature and humidity are ensured to meet the operating standards through the temperature and humidity adjustment unit 9, and the dust concentration is made to meet the operating standards by adjusting the air pump 13 and using the vacuum cleaner 17;

[0044] 3) The installer enters the installation space through the air shower room 34 and cleans the conductive rods 6, pot insulators 7 and the inner wall of the GIS air chamber until the corresponding electrical parameters and environmental indicators meet the installation standards;

[0045] 4) The main controller 31 controls the electric push rod 23 to move through the push rod driving unit 24 until the conductive rod 6 in the fixed GIS air chamber part 4 is firmly connected with the conductive rod 6 in the movable GIS air chamber 5;

[0046] 5) Seal and fasten the fixed GIS air chamber part 4 and the movable GIS air chamber 5, and remove the upper box body 1, the lower box body 2, the sealing ring 8, the upper bracket 27, the lower bracket 19, the retractable sealing cover 20, the upper guide rail 25, the lower guide rail 18, the vacuum pump 13, the intake pump 16, the air filter 14, the sensor group 10, the temperature and humidity adjustment unit 9, and the vacuum cleaner 17.

[0047] 2. Example 2: Substation double-row GIS equipment auxiliary installation device

[0048] 1. Overall structure

[0049] The substation double-row GIS auxiliary installation device described in the present invention is composed of a box structure, an installation space environment adjustment mechanism, a movable installation mechanism and a main controller. Figure 3 , Figure 4 and Figure 6 shown.

[0050] The double-row GIS auxiliary installation device for the substation described above is similar in structure to that of Example 1, except that an intermediate box plate 28, an intermediate bracket 29, a side box plate 30, and an external support frame 35 are added.

[0051] 2. Device connection method

[0052] When installing the double-row GIS air chamber, the upper box body 1 and the middle box plate 28 are fastened to the fixedly installed GIS air chamber part 4 located above through the sealing ring 8, the upper bracket 27 and the middle bracket 29 are fastened to the movable GIS air chamber 5_1 located above through the sealing ring 8, the lower box body 2 and the middle box plate 28 are fastened to the fixedly installed GIS air chamber part 4_2 located below through the sealing ring 8, the lower bracket 19 and the middle bracket 29 are fastened to the movable GIS air chamber 5_2 located below through the sealing ring 8, the upper bracket 27, the middle bracket 29, and the lower bracket 19 are fastened to the upper box body 1, the middle box plate 28, the side box plate 30, and the lower box body 2 respectively through the retractable sealing cover 20, and the external support frame is reliably connected to the upper movable GIS air chamber 5_1 and the lower movable GIS air chamber 5_2.

[0053] When installing a double-row GIS air chamber, the connection method ensures that a closed and sealed installation space is formed by the upper box body 1, the middle box plate 28, the side box plate 30, the lower box body 2, the sealing ring 8, the upper fixedly installed GIS air chamber part 4_1, the middle box body 28, the lower fixedly installed GIS air chamber part 4_2, the upper bracket 27, the middle bracket 29, the lower bracket 19, the sealing ring 8, the upper movable GIS air chamber 5_1, the lower movable GIS air chamber 5_2, and the retractable sealing cover 20.

[0054] 3. GIS equipment implementation method

[0055] The dust-free installation method of the double-row GIS air chamber proposed by the present invention is:

[0056] 1) The double-row GIS air chamber dust-free installation method proposed in the present invention is similar to the single-row GIS air chamber dust-free installation method, the difference being that an intermediate box plate 28, an intermediate bracket 29, a side box plate 30, and an external support frame 35 need to be added during installation, while ensuring that they form a closed and sealed installation space with other parts.

[0057] 2) The working content of the main controller is the same as that of the above-mentioned single-row GIS implementation method. At the same time, it should be noted that during the movement of the electric push rod 23 controlled by the main controller 31 through the push rod driving unit 24, the upper movable GIS air chamber 5_1 and the lower movable GIS air chamber 5_2 are kept as synchronized as possible to reduce the pressure on the intermediate bracket 29.

[0058] 3) The installer enters the installation space through the air shower room 34 and cleans the conductive rod 6_1, pot insulator 7_1 in the upper GIS air chamber, the conductive rod 6_2, pot insulator 7_2 and the inner wall of the air chamber in the lower GIS air chamber until the corresponding electrical parameters and environmental indicators meet the installation standards;

[0059] 4) The main controller 31 controls the movement of the electric push rod 23 through the push rod driving unit 24 until the conductive rod 6_1 in the upper fixed GIS air chamber part 4_1 is firmly connected to the conductive rod 6_1 in the upper movable GIS air chamber 5_1, and the conductive rod 6_2 in the lower fixed GIS air chamber part 4_2 is firmly connected to the conductive rod 6_2 in the lower movable GIS air chamber 5_2.

[0060] 5) Seal and fasten the fixed GIS air chamber part 4_1 above and the movable GIS air chamber 5_1 above, and remove the upper box body 1, the middle box plate 28, the lower box body 2, the side box plate 30, the sealing ring 8, the upper bracket 27, the middle bracket 29, the lower bracket 19, the telescopic sealing cover 20, the upper guide rail 25, the lower guide rail 18, the vacuum pump 13, the intake pump 16, the air filter 14, the sensor group 10, the temperature and humidity adjustment unit 9, the vacuum cleaner 17, and the external support frame 35.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any slight modification, equivalent substitution and improvement made to the above embodiment based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A substation GIS equipment auxiliary installation device, comprising a box structure, an installation space environment adjustment mechanism, a movable installation mechanism and a main controller, wherein the conductive rod (6) is divided into two parts that can be docked, one part is located in the GIS air chamber part that has been fixedly installed, and the other part is located in the GIS air chamber part to be installed and docked, wherein: The box structure comprises an upper box (1) and a lower box (2), and the upper box (1) and the lower box (2) are respectively sealed and connected to the GIS air chamber part that has been fixedly installed; The movable installation mechanism comprises an upper guide rail (25), a lower guide rail (18), an upper bracket (27), a lower bracket (19), a telescopic sealing cover (20) and a GIS air chamber moving unit. The upper guide rail (25) is arranged at the top of the upper box body (1) inside the box body, and the lower guide rail (18) is arranged at the bottom of the lower bracket (19) inside the box body. The upper guide rail and the lower guide rail are parallel to the conductive rod (6). The upper bracket (27) and the lower bracket (19) can move along the upper guide rail (25) and the lower guide rail (18) respectively. The upper bracket (27) and the lower bracket (19) are respectively sealedly connected to the upper box body (1) and the lower box body (2) through the retractable sealing cover (20), and the upper bracket (27) and the lower bracket (19) are also sealedly connected to the GIS air chamber part to be installed and docked; the GIS air chamber part to be installed and docked moves under the drive of the GIS air chamber moving unit, thereby achieving the docking of the conductive rod (6) part located in the GIS air chamber part to be installed and docked with the conductive rod (6) part located in the GIS air chamber part that has been fixed and installed; An exhaust port (11) and an air inlet (15) are respectively provided at different positions of the box structure, and a GIS installation isolation door (32) is also provided on the box structure, and the GIS installation isolation door (32) is sealed and connected to the air shower room (34) through a retractable sealing channel (33); The installation space environment adjustment mechanism comprises an air extraction pump (13), an exhaust pipe (12), an air filter (14), and an air intake pump (16); the two ends of the exhaust pipe (12) are respectively connected to the exhaust port (11) and the air extraction pump (13); the air filter (14) is arranged outside the box; the air intake pump (16) is arranged inside the box; the air filter (14) and the air intake pump (16) are respectively located at the two ends of the air intake port (15).

2. The auxiliary installation device for substation GIS equipment according to claim 1, characterized in that: The installation space environment adjustment mechanism further comprises a sensor group (10), a temperature and humidity adjustment unit (9) and a vacuum cleaner (17); the temperature and humidity adjustment unit (9) and the vacuum cleaner (17) are arranged inside the box; and the sensor group (10) is used to test the environment conditions of the installation space.

3. The auxiliary installation device for substation GIS equipment according to claim 2, characterized in that: The sensor group (10) is used to test the air pressure, temperature, humidity and dust concentration of the installation space in the box.

4. The substation GIS equipment auxiliary installation device according to any one of claims 2 or 3, characterized in that: The main controller (31) collects environmental conditions in the installation space according to the sensor group (10), controls the pressure of the air extraction pump (13) and the air intake pump (16), ensures that the air pressure in the installation space is higher than the external air pressure, ensures that the temperature and humidity meet the operating standards through the temperature and humidity adjustment unit (9), and ensures that the dust concentration meets the operating standards by adjusting the air pump and using the vacuum cleaner (17).

5. The substation GIS equipment auxiliary installation device according to claim 1, characterized in that: The GIS air chamber moving unit comprises an external guide rail (21), a support rod (22), an electric push rod (23) and a push rod driving unit (24); the installation direction of the external guide rail (21) is parallel to the conductive rod (6); the upper part of the support rod (22) is tightly connected to the GIS air chamber part to be installed and docked; the lower part of the support rod (22) can move along the external guide rail (21); one end of the electric push rod (23) is connected to the support rod (22) and the other end is fixed; the electric push rod (23) is driven by the push rod driving unit (24) so ​​that the support rod (22) drives the GIS air chamber part to be installed and docked to move along the external guide rail (21); the main controller (31) controls the electric push rod (23) to move through the push rod driving unit (24) until the conductive rod (6) in the fixedly installed GIS air chamber part is tightly connected to the conductive rod (6) in the GIS air chamber part to be installed and docked.

6. The auxiliary installation device for substation GIS equipment according to claim 5, characterized in that: The lower part of the support rod (22) can move along the outer guide rail (21) via rollers.

7. The substation GIS equipment auxiliary installation device according to claim 1 is characterized in that: The upper bracket (27) and the lower bracket (19) can move along the upper guide rail (25) and the lower guide rail (18) respectively via rollers.

8. The auxiliary installation device for substation GIS equipment according to claim 1, characterized in that: There are more than two rows of conductive rods (6) that need to be connected. For each row of conductive rods (6) that need to be connected, a portion is located in a GIS air chamber portion that has been fixedly installed, and the other portion is located in a GIS air chamber portion to be installed and connected. The substation GIS equipment auxiliary installation device also includes an intermediate box plate (28), an intermediate bracket (29) and a side box plate (30). The intermediate box plate (28) is used for fixing and sealing the GIS air chamber portions of each row that have been fixedly installed. The intermediate bracket (29) is used for fixing the connection between the GIS air chamber portions of each row that are to be installed and connected. The side box plate (30) is sealed between the upper box body (1) and the lower box body (2). The upper box body, the lower box body, the intermediate box plate (28), the side box plate (30), the upper bracket (27), the lower bracket (19), the intermediate bracket (29) and the telescopic sealing cover (20) are sealed to form a sealed installation space.

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