CN105846329A - Substation GIS installation dustless construction method - Google Patents

Abstract

The invention relates to the technical field of GIS installation, in particular to a dust-free construction method for substation GIS installation. The protective clothing and shoe covers enter the air shower room, which quickly cleans the sundries carried by the staff, enters the GIS equipment room, and sprays and wipes the ground of the GIS equipment room in advance; the third step is to clean the ground of the GIS equipment room. Install a partial purification dustproof room indoors, use the partial purification dustproof room to carry out dust removal and purification treatment on its indoor environment, and install an environmental detector in the partial purification dustproof room to detect the indoor dust concentration of GIS equipment; the fourth step is to partially purify the dustproof indoor dust After the concentration reaches the required purification level, the GIS equipment will be installed. The invention can ensure the dust-free installation of the GIS equipment and provide guarantee for the reliable operation of the substation.

Description

Dust-free construction method for substation GIS installation

technical field

The invention relates to the technical field of GIS installation, in particular to a dust-free construction method for GIS installation in a substation.

Background technique

The full name of GIS equipment is gas-insulated fully-enclosed combined electrical equipment. Due to its small footprint, compact structure, and reliable operation, it has become an important equipment in current substations. During the construction, due to poor working conditions and insufficient cleanliness on the construction site, the degree of fine dust and fine water in the environment is high; and when the staff enters the GIS room, there are no corresponding measures to remove the pollutants carried on their bodies, causing environmental damage Secondary pollution leads to poorer environmental cleanliness, which cannot meet the requirements of the standard construction. Open installation will easily lead to air dust entering the equipment, causing GIS to have air leakage, discharge and other faults, affecting the reliability of substation operation and burying potential safety hazards.

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a dust-free construction method for GIS installation in a substation, to ensure the dust-free installation of GIS equipment, and to provide guarantee for the reliable operation of the substation.

The technical scheme that the present invention adopts for solving its technical problem is:

The dust-free construction method for installing GIS in the substation includes the following steps:

In the first step, the staff install dust-proof and rodent-proof windows for the GIS equipment room;

In the second step, the staff wear protective clothing and shoe covers and enter the air shower room. The air shower room quickly cleans the debris carried by the staff, enters the GIS equipment room, and sprays and wipes the ground of the GIS equipment room in advance. ;

The third step is to install a partial purification and dustproof room in the GIS equipment room, use the partial purification and dustproof room to perform dust removal and purification treatment on its indoor environment, and install an environmental detector in the partial purification and dustproof room to detect the indoor dust concentration;

The fourth step is to install the GIS equipment after the dust concentration in the dust-proof room reaches the required purification level.

In the above second step, the protective clothing worn by the installer is a double-layer one-piece front opening structure with a protective cap of the same material. The outer layer is made of high-quality microporous film material, and the inner layer is made of spunbonded polypropylene non-woven fabric. , spun-bonded polypropylene non-woven fabric is soft, comfortable, and has excellent air permeability. The protective clothing is a full-body piece, which can completely isolate the dust that the staff may carry from the indoor environment, and ensure the cleanliness of the environment. It is durable, tear-resistant and Abrasion, comfortable to wear, soft, light, breathable, lint-free, anti-pollution, anti-static; can permeate air and water vapor, but can repel water-based liquids and aerosols; the surface is smooth to repel inorganic liquids and prevent chemical substances from splashing, At the same time, the solid dust is not easy to adhere.

The air shower room is the necessary purification equipment for personnel to enter the dust-free place. It uses strong clean air to spray from all directions on the person's body through the rotatable nozzle, and quickly removes dust, dandruff and other sundries attached to the clothes to prevent work. Personnel bring hair, dust into the installation site. The two doors of the air shower are electronically interlocked to prevent external pollution and unpurified air from entering the construction area, so that the workplace can meet strict dust-free purification standards.

Among them, the preferred scheme is:

When installing the GIS equipment in the fourth step, it is necessary to check whether the surface and contacts of the GIS buses are rusted, oxidized, scratched and uneven. If there is, use a scouring pad or fine sandpaper to clean it and make it smooth , and wipe the inside of the contacts with lint-free paper dipped in absolute alcohol. Before installing the GIS main busbar, apply a layer of electric compound grease evenly on the main busbar contacts. Operators use lint-free paper and a vacuum cleaner to clean the inner wall of the busbar barrel and For the butt joint surface, check the flange surface, sealing groove and sealing ring. The flange surface and sealing groove should be smooth and free of damage.

After the surface of the sealing ring is evenly coated with silicone grease, put it into the sealing groove, confirm that the specifications are correct, and then apply the sealant evenly on the air side, and be careful not to let the sealant flow into the inside of the sealing ring.

The dust-proof and rodent-proof window includes a window frame, and a dust-proof net is installed in the window frame, and a breathable film is arranged on the side of the window frame facing the outside. The dust-proof net can prevent outdoor dust and sundries on the one hand, and prevent mice from , snakes and other small animals invade, the air-permeable membrane can effectively absorb the dust in the outdoor air, and can effectively reduce the dust concentration in the indoor air.

A safety lock is set between the window frame and the dust-proof net. The dust-proof net after dust collection can be opened for disassembly and cleaning. The key of the safety lock is held by a fixed person to prevent other operators from disassembling at will.

The window frame is made of stainless steel, the edge of the air-permeable film corresponds to the magnet embedded in the window frame, and the air-permeable film is adsorbed on the window frame by the magnet.

The surface of the window frame is sprayed with fluorocarbon paint for anti-aging.

The partial purification and dustproof room includes a support frame, a visible diaphragm is arranged on the outer periphery of the support frame, a purification fan is fixed on the top of the support frame, an air inlet and a return air port are set on the visible diaphragm corresponding to the purification fan, a dehumidification mechanism is arranged at the air inlet, and the return air outlet passes through the pipe The road is connected to the purification fan, and the visible diaphragm on the side of the support frame corresponds to the GIS equipment. The interface is provided with an elastic belt. The ambient temperature and humidity in the local purification and dustproof room meet the requirements of the equipment technical documents. In order to enhance the purification effect, a three-stage filter can be installed at the air inlet to filter the air layer by layer to filter out dust particles. At the same time, the purification fan maintains local purification and anti The air pressure in the dust chamber is positive relative to the indoor air pressure of the GIS equipment, preventing the indoor air of the GIS equipment from directly entering the local purification dustproof room without being purified by the purification fan. When docking, the docking position of the GIS equipment enters the local purification dustproof room through the docking port. The elastic belt is set so that the docking port and the docking position of the equipment fit perfectly without leaving any gaps, preventing external impurities from entering the local purification and dustproof room through the docking port.

Turn on the purification fan before working, and wait for a few minutes until the dust concentration becomes stable and reaches the required purification level before personnel can enter the local purification and dustproof room to work. Arrange special personnel to monitor and record environmental parameters to ensure that the environment during the entire GIS installation process meets the dust-free standard.

The support frame includes four telescopic columns, and the visible diaphragm includes a top film, a bottom film and a surrounding film, the top film is fixed on the top of the support frame, the bottom film is fixed on the bottom of the support frame, and the height of the surrounding film is the same as that of the stretched post. The two ends of the surrounding membrane are respectively fixed on the top and bottom of the supporting frame. The part of the surrounding membrane in contact with the telescopic column is provided with several fixing rings corresponding to the telescopic column. The fixing ring is sleeved on the telescopic column. When the exit door is closed, the side of the surrounding membrane is sealed. The entrance and exit doors include two layers, which are respectively arranged on both sides of the surrounding membrane. Several pairs of magnetic buckles are correspondingly arranged on the surrounding membrane and the entrance and exit doors. The operator enters the local purification and dustproof room through the entrance and exit door. There are two floors at the door to prevent the indoor dust of GIS equipment from entering the local purification and dustproof room through the entrance and exit doors. When docking different parts of the equipment, the height of the docking interface is different, and the height of the docking interface can be adjusted through the cooperation of the telescopic column and the visible diaphragm. , the top film, the bottom film and the surrounding film are combined with the telescopic column to form a partial purification and dustproof room. The surrounding film is fixed on the telescopic column through the fixing ring to prevent the surrounding film from twisting during the expansion of the telescopic column. The visible diaphragm can be made of transparent plastic film. For example, PVC anti-static mesh plastic cloth, the material itself does not generate static electricity and does not stick to dust, so as to avoid static electricity damage to the work site. One or more layers of floor leather or other smooth pads are laid on the top layer of the base film.

Silent universal wheels are arranged at the bottom of the telescopic column, and the dust-proof room can be partially purified by moving the silent universal wheels.

Compared with the prior art, the present invention has the following beneficial effects:

The invention provides a dust-free construction method for GIS in a substation, which ensures the dust-free installation of GIS equipment and provides guarantee for the reliable operation of the substation. A series of work measures, the 110 kV GIS in the station can be quickly installed in accordance with the dust-free construction quality requirements, and passed the test items such as pressure test, air leakage test, and micro-water measurement at one time, and all inspection data are in line with the equipment handover According to the standard, the dust content in the installation operation area is only 10,000 grades, which is far lower than the million grades required by the standard, which greatly improves the GIS equipment installation process level and reduces the equipment accident rate.

Description of drawings

Fig. 1 flow chart of the present invention.

Fig. 2 is the front view of the dust-proof and mouse-proof window of the present invention.

Fig. 3 is the rear view of the dustproof and mouseproof window of the present invention.

Fig. 4 is a structural diagram of the local purification and dustproof room of the present invention.

In the figure: 1. Window frame; 2. Dustproof net; 3. Breathable membrane; 4. Safety lock; 5. Magnet; 6. Purification fan; 10. Surrounding film; 11. Fixed ring; 12. Access door.

detailed description

Embodiments of the present invention are further described below in conjunction with the accompanying drawings:

Example 1:

As shown in Figure 1, the dust-free construction method for substation GIS installation of the present invention comprises the following steps:

In the first step, the staff install dust-proof and rodent-proof windows for the GIS equipment room;

In the second step, the staff wear protective clothing and shoe covers and enter the air shower room. The air shower room quickly cleans the debris carried by the staff, enters the GIS equipment room, and sprays and wipes the ground of the GIS equipment room in advance. ;

The third step is to install a partial purification and dustproof room in the GIS equipment room, use the partial purification and dustproof room to perform dust removal and purification treatment on its indoor environment, and install an environmental detector in the partial purification and dustproof room to detect the indoor dust concentration;

The fourth step is to install the GIS equipment after the dust concentration in the dust-proof room reaches the required purification level.

Wherein, when the GIS equipment is installed in the fourth step, it is necessary to check whether the surface and contacts of the GIS buses are rusted, oxidized, scratched and uneven. If there is, use a scouring pad or fine sandpaper to deal with it Clean and flat, and wipe the inside of the contact with lint-free paper dipped in absolute alcohol. Before installing the GIS main busbar, apply a layer of electric compound grease evenly on the main busbar contacts. Operators use lint-free paper and a vacuum cleaner to clean the busbar barrel Inner wall and butt joint surface, check the flange surface, sealing groove and sealing ring. The flange surface and sealing groove should be smooth and free of damage; after the surface of the sealing ring is evenly coated with silicone grease, put it into the sealing groove to confirm The specifications are correct, and then apply the sealant evenly on the air side, and be careful not to let the sealant flow into the inside of the sealing ring.

Among them, when installing the GIS equipment in the fourth step, it is necessary to check whether the surface and contacts of the GIS busbars are rusted, oxidized, scratched and uneven. If there is, use a scouring pad or fine sandpaper to clean it up , and wipe the inside of the contacts with lint-free paper dipped in absolute alcohol. Before installing the GIS main busbar, apply a layer of electric compound grease evenly on the main busbar contacts. Operators use lint-free paper and a vacuum cleaner to clean the inner wall of the busbar barrel and For the butt joint surface, check the flange surface, sealing groove and sealing ring. The flange surface and sealing groove should be smooth and free of damage; after the surface of the sealing ring is evenly coated with silicone grease, put it into the sealing groove to confirm that the specifications are correct, and then Apply sealant evenly on the air side, and be careful not to let the sealant flow into the inner side of the sealing ring. The butt joints mainly include busbar butt, branch butt, voltage transformer butt and arrester butt.

In the above second step, the protective clothing worn by the installer is a double-layer one-piece front opening structure with a protective cap of the same material. The outer layer is made of high-quality microporous film material, and the inner layer is made of spunbonded polypropylene non-woven fabric. , spun-bonded polypropylene non-woven fabric is soft, comfortable, and has excellent air permeability. The protective clothing is a full-body piece, which can completely isolate the dust that the staff may carry from the indoor environment, and ensure the cleanliness of the environment. It is durable, tear-resistant and Abrasion, comfortable to wear, soft, light, breathable, lint-free, anti-pollution, anti-static; can permeate air and water vapor, but can repel water-based liquids and aerosols; the surface is smooth to repel inorganic liquids and prevent chemical substances from splashing, At the same time, the solid dust is not easy to adhere.

The air shower room is the necessary purification equipment for personnel to enter the dust-free place. It uses strong clean air to spray from all directions on the person's body through the rotatable nozzle, and quickly removes dust, dandruff and other sundries attached to the clothes to prevent work. Personnel bring hair, dust into the installation site. The two doors of the air shower are electronically interlocked to prevent external pollution and unpurified air from entering the construction area, so that the workplace can meet strict dust-free purification standards.

Turn on the purification unit before working, and wait for a few minutes until the dust concentration becomes stable and reaches the required purification level before personnel can enter the local purification and dustproof room to work. Arrange special personnel to monitor and record environmental parameters to ensure that the environment during the entire GIS installation process meets the dust-free standard.

Example 2:

As shown in Figure 2-3, on the basis of Embodiment 1, this embodiment details the structure of the dust-proof and mouse-proof window. The dust-proof and mouse-proof window includes a window frame 1, and a dust-proof net is installed in the window frame 1 2. The side of the window frame 1 facing the outdoors is provided with a breathable membrane 3. The dust-proof net 2 can prevent outdoor dust and debris on the one hand, and on the other hand can prevent the invasion of small animals such as mice and snakes. The breathable membrane 3 installed can effectively absorb outdoor dust. The dust in the air can effectively reduce the indoor air dust concentration; a safety lock 4 is set between the window frame 1 and the dust-proof net 2, and the dust-proof net 2 after dust collection can be disassembled and cleaned by opening the safety lock 4. Hold by fixed personnel to prevent other operators from disassembling at will; the window frame 1 is made of stainless steel, the edge of the breathable film 3 corresponds to the embedded magnet 5 of the window frame 1, and the breathable film 3 is adsorbed on the window frame 1 through the magnet 5; The surface of frame 1 is sprayed with fluorocarbon paint for anti-aging.

Example 3:

As shown in Figure 4, on the basis of Embodiment 1, the present embodiment details the structure of the local purification and dustproof room, which includes a support frame, a visible diaphragm is arranged on the outer periphery of the support frame, a purification fan 6 is fixed on the top of the support frame, and the visible diaphragm Corresponding to the purification fan 6, an air inlet and a return air outlet are provided, and a dehumidification mechanism is arranged at the air inlet. The purification fan 6 returns to its interior after purification, the visible diaphragm on the side of the support frame corresponds to the GIS equipment and the docking port 7 is set, and the docking port 7 corresponds to the elastic belt 8. After the purification fan 6 is turned on, the air in the dust-proof room is partially purified. Purification, a dehumidification mechanism is installed at the air inlet to ensure that the ambient temperature and humidity in the dust-proof room for partial purification meet the requirements of the equipment technical documents. In order to strengthen the purification effect, a three-stage filter can be installed at the air inlet to filter the air layer by layer to filter out dust Particles, at the same time, the purification fan 6 keeps the air pressure in the local purification dust-proof room as a positive pressure relative to the GIS equipment indoor air pressure, preventing the gas in the GIS equipment room from directly entering the local purification dust-proof room without purification by the purification fan 6. When docking, the GIS equipment docking position Enter the local purification and dustproof room through the docking port 7, and set the elastic belt 8 on the docking port 7, so that the docking port 7 and the docking position of the equipment fit perfectly, leaving no gaps, preventing external impurities from entering the local purification and dustproof room through the docking port 7 .

The support frame includes four telescopic columns 9, and the visible diaphragm includes a top film, a bottom film and a surrounding film 10, the top film is fixed on the top of the support frame, the bottom film is fixed on the bottom of the support frame, and the height of the surrounding film 10 is extended with the telescopic column 9. The back height is the same, the two ends of the surrounding membrane 10 are respectively fixed on the top and bottom of the support frame, and the part of the surrounding membrane 10 in contact with the telescopic column 9 is provided with several fixed rings 11 corresponding to the telescopic column 9, and the fixed ring 11 is sleeved on the telescopic column 9 On one side of the surrounding film 10, an access door 12 is set. When the access door 12 is closed, the side of the surrounding film 10 is sealed. The access door 12 includes two layers, which are respectively arranged on both sides of the surrounding film 10. A number of pairs of magnetic buckles are set, and the operator enters the local purification and dustproof room through the entrance and exit door 12. The entrance and exit door 12 is provided with two layers to prevent the dust in the GIS equipment room from entering the local purification and dustproof room through the entrance and exit door 12. When docking different parts of the equipment, The height of the docking port 7 is not the same, and the height adjustment of the docking port 7 can be realized through the cooperation of the telescopic column 9 and the visible diaphragm. 10 is fixed on the telescopic column 9 through the fixing ring 11 to prevent the surrounding film 10 from twisting during the stretching process of the telescopic column 9. The visible diaphragm can be a transparent plastic film, such as PVC anti-static grid plastic cloth. The friction of the material itself does not generate static electricity. Sticky dust, to avoid electrostatic damage to the work site, in order to facilitate the local cleaning of the dust-proof room and avoid scratching the base film by the GIS equipment during the installation process, one or more layers of floor leather or other smooth lining can be laid on the top layer of the base film Pad; telescopic column 9 bottoms are provided with silent universal wheels, which can move the local purification dustproof room by silent universal wheels.

Claims (10)

1. a transformer station GIS installs dustlessization construction method, it is characterised in that comprise the following steps:

The first step, staff installs dust-proof protection against rodents window for GIS device room；

Second step, staff has dressed protective garment and shoe cover and has entered Airshower chamber, the Airshower chamber foreign material to carrying with staff Carry out rapid cleaning, enter GIS device room, in advance GIS device room floor is carried out watering cleaning and cleans；

3rd step, at GIS device indoor location Local Purification dustproof room, uses Local Purification dustproof room voluntarily to its indoor environment Carry out udst separation process, dust concentration in Local Purification dust-proof indoor installation environments detector sensing chamber；

4th step, after dust concentration reaches the purification rank of requirement in Local Purification dustproof room, carries out GIS device installation.

Transformer station GIS the most according to claim 1 installs dustlessization construction method, it is characterised in that in described 4th step Carry out GIS device when installing, need to check GIS each bus surface and contact with or without getting rusty, oxide, cut and uneven, If it has, use scouring pad or fine sandpaper to be processed to the most smooth, and clean inside contact with dipping in anhydrous alcohol without hair paper, GIS Before main bus-bar is installed, should be coated with one layer of electric force compounded grease on main bus-bar contact equably, operating personnel uses without hair paper and vacuum cleaner Cleaning bus bar canister inwall and interface, checks flange face, seal groove and sealing ring, flange face and seal groove should bright and clean, Not damaged.

Transformer station GIS the most according to claim 2 installs dustlessization construction method, it is characterised in that described sealing ring table After the uniform application silicone grease of face, put it in seal groove, confirm that specification is correct, be then uniformly coated with sealant in air side, and Must not note and make sealant flow into inside sealing ring.

Transformer station GIS the most according to claim 1 installs dustlessization construction method, it is characterised in that described dust-proof protection against rodents Window includes window frame (1), installs Air Filter (2) in described window frame (1), and window frame (1) arranges ventilated membrane towards outdoor side (3)。

Transformer station GIS the most according to claim 4 installs dustlessization construction method, it is characterised in that described window frame (1) And safety lock (4) is set between Air Filter (2).

Transformer station GIS the most according to claim 4 installs dustlessization construction method, it is characterised in that described window frame (1) Employing stainless steel is made, described ventilated membrane (3) edge correspondence window frame (1) embedded Magnet (5).

Transformer station GIS the most according to claim 1 installs dustlessization construction method, it is characterised in that described Local Purification Dustproof room includes that support frame, support frame periphery arrange visual barrier film, and purification fan (6) is fixed at support frame top, visually Barrier film correspondence purification fan (6) arranges air inlet and return air inlet, and air inlet arranges desiccant body, and return air inlet passes through pipeline connection Purification fan (6), the visual barrier film correspondence GIS device of support frame side arranges docking port (7), and docking port (7) correspondence sets Put elastic banding edge band (8).

Transformer station GIS the most according to claim 7 installs dustlessization construction method, it is characterised in that described support frame Including four telescopic columns (9), visual barrier film includes teleblem, counterdie and surrounding film (10), and teleblem is fixed on support frame top, Counterdie is fixed on bottom support frame, and surrounding film (10) height is the most identical after stretching with telescopic column (9), surrounding film (10) Two ends are individually fixed in support frame top and bottom, and surrounding film (10) is corresponding with the part that telescopic column (9) contacts flexible Column (9) arranges several retainer ring (11), and retainer ring (11) is socketed on telescopic column (9), surrounding film (10) Arranging inlet/outlet (12) on side, when inlet/outlet (12) is closed, surrounding film (10) this side seals.

Transformer station GIS the most according to claim 8 installs dustlessization construction method, it is characterised in that described inlet/outlet (12) Including two-layer, be respectively arranged on be correspondingly arranged on surrounding film (10) both sides, surrounding film (10) and inlet/outlet (12) some to magnetic Button.

Transformer station GIS the most according to claim 8 installs dustlessization construction method, it is characterised in that described telescopic vertical Post (9) bottom arranges quiet universal wheel.