JPH07150816A - Dust prevention assembling house - Google Patents

Abstract

PURPOSE:To make it possible to open or close the ceiling part of a tent and increase the assembling and disassembling work efficiency of a gas isolation opening device and also easily assemble and disassemble a dust prevention house. CONSTITUTION:A dust prevention assembling house 20 is constituted of a house body 21 and a roof 22. In this roof 22, a pair of guide rails 31 are arranged parallelly and horizontally and also with a level difference. And a plurality of support beams for the ceiling part of the tent are placed so as to cross in right angles with the guide rails 31 and to be parallel with each other and transferable between the pair of guide rails 31. The ceiling part 28 is attached to these ceiling part support beams. And the ceiling part support beams are guided by the guide rails 31 and transferred to open or close the ceiling part 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled dustproof house used for assembling and disassembling a gas-insulated switchgear, for example.

[0002]

2. Description of the Related Art Conventionally, electric power generated by a power plant is transmitted to a substation, transformed, and supplied to a factory or the like. Here, in constructing a substation, along with responding to social situations such as effective utilization of land and harmony with the surrounding environment, improvement of reliability of electric power equipment itself, labor saving of maintenance and inspection, safety and environmental resistance There are active movements to construct high substations. Therefore, in the past, instead of the atmospheric insulation method, a gas insulated switchgear (GIS) using SF ₆ (sulfur hexafluoride) gas, which has excellent insulation characteristics, and a compound switchgear (GCS) that is an application device of a gas circuit breaker are used. ) Etc. have come to be used. The gas-insulated switchgear and the composite switch are composed of gas-insulated electrical equipment in which devices such as circuit breakers and disconnectors are housed in a grounded metal container and SF ₆ gas is sealed and sealed in the space. When assembling and disassembling, since the presence of dust and water reduces the insulation performance, an assembly dustproof house is attached to carry out the assembly and disassembly work.

FIGS. 16 (a) and 16 (b) are schematic views showing an example of an assembling method of a conventional gas-insulated switchgear, respectively.
7 is a perspective view showing an example of an assembling method of a conventional assembled dustproof house, FIG. 17 (a) shows a frame state of the assembled dustproof house, and FIG. 17 (b) shows a completed state of the assembled dustproof house. ing. In the figure, reference numeral 1 denotes a device such as a circuit breaker or a disconnector which is housed in a grounded metal container, and SF is provided in the space.
A gas-insulated electric device in which ₆ gas is sealed and hermetically sealed, a busbar 2 is stored while being insulated and supported, and a space in which SF ₆ gas is sealed and hermetically sealed is a crane 3.
Reference numeral 4 denotes an assembled dust-proof house composed of a house body 5 and a roof 6 detachably attached to the house body 5. Reference numeral 7 is a main body frame constituting the frame of the house main body 5, 8 is a side curtain attached so as to cover the four side faces of the house main body 5, 9 is a roof frame constituting the frame of the roof 6, and 10 is A roof curtain attached so as to cover the framework of the roof part 3, 11 is a device through hole provided in the side curtain 8, 12 is a magic tape for binding the device through hole 11, 13 is a rope, and 14 is provided in the side curtain 8. It is a doorway. Reference numeral 15 is a caster attached to the bottom of the main body frame 4, and 16 is an air conditioner attached to the assembled dustproof house 4.

Next, a method of assembling the above-mentioned conventional gas-insulated switchgear will be described. The gas-insulated electric device 1 and the tank 2 are assembled at the factory and are transported to the site with the inside being cleaned. Then, first, the gas-insulated electric device 1 is laid at a desired position.

Therefore, the frame of the house body 5 is assembled using the body frame 7, and the side curtain 8 is attached so as to cover the four side surfaces of the house body 5 to assemble the house body 5. Next, the frame of the roof portion 6 is assembled using the roof portion frame 9, the roof curtain 10 is attached, and the roof portion 6 is assembled. Then, the roof portion 6 is lifted by the crane 3, the roof portion 3 is positioned on the house main body portion 5, and fixed by bolts or the like to assemble the assembled dustproof house 4. At this time, the suspended roof part 6 becomes unstable, and mounting work such as bolt tightening becomes difficult. Therefore, auxiliary ropes (not shown) are hung from the four corners of the roof part 6 and the operator pulls these auxiliary ropes. The roof 6 is prevented from swinging. Then, the assembled dustproof house 4 is moved to a desired position while inserting the tank 2 connected to the gas insulated electric device 1 through the device through hole 11. Then, the tank 2 to be connected is lifted by the crane 3 and inserted into the assembled dustproof house 4 through the device through hole 11 as shown in FIG. Then, the device through hole 11 is bound with the Velcro tape 12 and the rope 13, and the outer peripheral portions of the tanks 2 and 2 are sealed,
As shown in FIG. 17B, the installation of the assembled dustproof house 4 is completed.

Therefore, an air conditioner 16 is connected to the assembled dustproof house 4 to air-condition the inside of the assembled dustproof house 4 so as to meet the assembly environmental standard. Then, the worker enters the assembled dust-proof house 4 through the doorway 14 and enters the blind plates 2a of the tanks 2 and 2.
Then, the busbars and the tanks 2 and 2 are connected. After that, the assembled dustproof house 4 is partially or completely disassembled, transported to the next adjacent connecting place, and the above connecting work is repeated to connect all the gas insulated electric devices 1. Then, SF ₆ gas is sealed in the connected gas-insulated electrical equipment 1, tank 2, etc., and the installation of the gas-insulated switchgear is completed.

If the tank 2 to be connected has a short length, even if the tank 2 is lifted by the crane 3 and inserted through the device through hole 11, the tank 2 connected to the gas-insulated electric device 1 is connected. Does not reach. Therefore, the bolts and the like connecting the house body 5 and the roof 6 are removed, and the crane 6 suspends the roof 6. After that, the tank 2 to be connected is lifted by the crane 3, and as shown in FIG. 16B, the tank 2 is hung from the ceiling of the house body 5 into the assembled dust-proof house 4 to perform the above-mentioned connecting work. .

[0008]

Since the conventional assembled dust-proof house is constructed as described above, when the short tank 2 is to be connected, for example, the roof portion 6 is lifted by the crane 3 and hung to lower the roof portion. Work to remove 6 is required,
There was a problem that the work efficiency of assembling and disassembling the gas insulated switchgear was reduced. Also, when installing the roof portion 6,
The roof 6 needs to be lifted by the crane 3. Therefore, since the suspended roof portion 6 becomes unstable, it is necessary to hang auxiliary ropes from the four corners of the roof portion 6 and the operator pulls these auxiliary ropes to stabilize the roof portion 6. There is also a problem in that the number of persons required is increased and the assembling property of the assembled dustproof house is deteriorated.

The present invention has been made in order to solve the above problems, and has a structure capable of opening and closing the roof curtain of the roof portion to improve the work efficiency of assembling and disassembling the gas insulated switchgear. The purpose is to obtain an assembled dustproof house that can be easily assembled and disassembled.

[0010]

According to a first aspect of the present invention, there is provided an assembled dustproof house in which a side surface of a box-shaped frame is covered with a side curtain of a main body of the house and a side curtain of the main body of the house. Equipment through-holes provided on both side parts of the, and each side surface is covered by the roof side curtain, and the ceiling part is covered by the ceiling curtain, and a box-shaped roof part attached to the main body of the house, And a means for opening and closing the ceiling curtain of the roof portion.

Further, an assembled dustproof house according to a second invention of the present invention is the assembled dustproof house according to the first invention, wherein the roof part is detachably attached to the house main body part.

Further, an assembled dustproof house according to a third aspect of the present invention is the assembled dustproof house according to the first aspect, wherein the roof portions are orthogonal to the pair of guide rails arranged in parallel with each other, Also, a plurality of ceiling curtain support beams, which are movably installed between the pair of guide rails in parallel to each other and to which the ceiling curtain is attached, and ceiling curtain support beam movements for moving the ceiling curtain support beams along the pair of guide rails. And means.

Further, an assembled dust-proof house according to a fourth aspect of the present invention is the assembled dust-proof house according to the third aspect, wherein the pair of guide rails are arranged horizontally with a step therebetween.
A plurality of ceiling curtain support beams installed between a pair of guide rails are inclined.

Also, in the assembled dustproof house according to the fifth invention of the present invention, in the third invention, the ceiling curtain support beam moving means is attached to both ends of each of the plurality of ceiling curtain support beams. Rollers that engage with the guide rails, pulleys that are arranged at both ends or below each of the pair of guide rails, and a ceiling curtain support whose one end is located at one side end of the plurality of ceiling curtain support beams. A rope attached to each end of the beam, hung on each of the pulleys, and hung at the other end.

Also, in the assembled dustproof house according to the sixth invention of the present invention, in the second invention, the box-shaped frame of the house main body is adjacent to the vertical frames which are erected at each of the four corners. The vertical frame has a horizontal frame connected to each upper end side of the vertical frame so as to be orthogonal to each other, and the vertical frame is configured to be foldable.

Also, in the assembled dust-proof house according to the seventh invention of the present invention, in the second invention, the box-shaped frame of the house main body portion is adjacent to the vertical frames provided upright at each of the four corners. The vertical frame has a horizontal frame connected to each upper end side of the vertical frame so as to be orthogonal to each other, and the vertical frame is configured to be expandable and contractable.

Also, in the assembled dustproof house according to the eighth invention of the present invention, in the second invention, the box-shaped frame of the house main body is adjacent to the vertical frames which are erected at each of the four corners. The vertical frame and the horizontal frame have a horizontal frame connected to each upper end side of the vertical frame so as to be orthogonal to each other, and the vertical frame and the horizontal frame are configured to be disassembled.

[0018]

According to the first aspect of the present invention, when assembling a gas-insulated switchgear or a compound switch composed of gas-insulated electric equipment, the assembled dust-proof house is installed in the gas-insulated electric equipment. It is moved to the vicinity and installed. At this time, the tank connected to the gas-insulated electric device is inserted into the house through the one device through hole.
When the tanks to be connected are long, the tanks are lifted by a crane and inserted into the house from the outside of the house through the other device through hole, and the tanks are connected to each other. When the tanks to be connected are short, the ceiling curtain of the roof is opened, the tanks are lifted by a crane, and the tanks are hung from the open ceiling to connect the tanks. On the other hand, when disassembling the gas insulated switchgear and the composite switch, the assembled dustproof house is installed so as to surround the disassembly place.
When the tank to be disassembled is long, the tank is suspended from the crane, disconnected, and discharged to the outside of the house through the equipment through hole. If the tank to be disassembled is short, the ceiling curtain on the roof is opened, the tank is suspended from the crane, the connection is released, and the tank is hung outside the house from the opened ceiling.

According to the second aspect of the present invention,
When assembling the dustproof house, the house body and the roof are separately assembled, and then the roof is connected to the house body. Therefore, the assembly work position is lowered, the work at a high place is reduced, and the assembling workability is improved. Also, when moving the assembled dustproof house from one assembly (or disassembly) position of the gas insulated switchgear and the compound switch to the next assembly (or disassembly) position, without completely disassembling the assembled dustproof house, The house body and the roof can be moved in a separated state, and the work efficiency is improved.

In the third invention of the present invention,
The plurality of ceiling curtain support beams to which the ceiling curtain is attached are movably installed between a pair of guide rails. Therefore,
The plurality of ceiling curtain support beams are moved to one side along the guide rails by the ceiling curtain support beam means. Then, with the movement of the plurality of ceiling curtain support beams to one side, the ceiling curtain is opened.

According to the fourth aspect of the present invention,
Since the pair of guide rails are arranged horizontally with a step, the plurality of ceiling curtain support beams installed between the pair of guide rails are inclined. Therefore, the ceiling curtain attached to the ceiling curtain support beam also has an inclination, and in the case of rain, the rain quickly flows down. Therefore,
The ceiling curtain will not be damaged by the weight of rainwater collected on the ceiling curtain.

In the fifth aspect of the present invention,
The ceiling curtain support beam moving means is provided on both ends of each of the plurality of ceiling curtain support beams and engaged with the pair of guide rails, and the pulleys arranged on both ends of the pair of guide rails or below the rollers. And a rope whose one end is attached to both ends of the ceiling curtain support beam located at one end of the plurality of ceiling curtain support beams, and which is hung on each of the pulleys and hung at the other end. I have it. Therefore, when the other end of the rope on one side is pulled, the rope runs smoothly on the pulley and acts so as to pull the ceiling curtain support beam. Then, the ceiling curtain support beams move in the guide rails while the rollers rotate to open the ceiling curtain. If you pull the other end of the rope on the other side,
Similarly, the ceiling curtain is closed.

In the sixth aspect of the present invention,
The box-shaped framework of the house main body has vertical frames that are erected at each of the four corners, and horizontal frames that are connected so as to be orthogonal to the upper ends of the adjacent vertical frames,
The vertical frame is foldable. Therefore,
In the assembling work of the assembling dustproof house, the assembling work position can be lowered in a state where the vertical frame is folded to assemble the house main body, and finally the house body can be extended to complete the assembling. In the disassembling work of the assembled dustproof house, first, the vertical frame is folded and the disassembly work position is lowered to disassemble the house main body.

In the seventh aspect of the present invention,
The box-shaped framework of the house main body has vertical frames that are erected at each of the four corners, and horizontal frames that are connected so as to be orthogonal to the upper ends of the adjacent vertical frames,
Since the vertical frame is configured to expand and contract,
The same function as the invention of. Furthermore, when the work environment has a height limit during the assembly / disassembly work of the gas insulated switchgear and the composite switch, the height of the assembled dustproof house can be adjusted by expanding and contracting the vertical frame.

In the eighth aspect of the present invention,
The box-shaped framework of the house main body has vertical frames that are erected at each of the four corners, and horizontal frames that are connected so as to be orthogonal to the upper ends of the adjacent vertical frames,
Since the vertical frame and horizontal frame can be disassembled, the assembled dust-proof house can be disassembled into each component, the volume is small, and transportation to the site is easy.

[0026]

Embodiments of the present invention will be described below with reference to the drawings. Example 1. 1 is a perspective view showing an assembled state of an assembled dustproof house according to Embodiment 1 of the present invention, and FIG.
The same or corresponding parts as those of the conventional assembled dustproof house shown in FIG.

In the figure, 20 is an assembled dust-proof house comprising a house body 21 and a roof 22. The house main body 21 is formed by stretching four house main body side curtains 23 so as to cover the four side surfaces of the frame. The house main body side curtains 23 are connected to each other by fasteners 24, and a slack portion 25 of the house main body side curtain 23 is provided at each corner of the house main body 21.
In addition, the device through-holes 11 are provided in the pair of opposing house body portion side curtains 23 of the house body portion 21, and the fastener 2 is provided on the house body portion side curtain 23 on one side surface of the house body portion 21.
A doorway 14 that can be opened and closed by 6 is provided. On the other hand, the roof part 22 is constructed by stretching four roof part side curtains 27 so as to cover the four side surfaces of the frame, and further attaching a ceiling curtain 28 so as to cover the ceiling. The roof side curtains 27 are connected to each other by fasteners 29. The ceiling curtain 28 is configured to be opened and closed by being guided by a guide rail 31 by operating a rope 30. Further, the guide rail 31 is provided with a pulley 32 for smoothly operating the rope 30. In this way, the assembled dustproof house 20 is configured so that the inside thereof is isolated from the outside by the house body side curtain 23, the roof side curtain 27, and the ceiling curtain 28.

Next, the structure of the house body 21 will be described in detail. FIG. 2 is a perspective view showing a skeleton structure of the house main body portion in the assembled dustproof house according to the first embodiment of the present invention. In the figure, 35 is a vertical frame of the house main body 21, and this vertical frame 35 is a pin joint 36.
It is configured to be foldable by means of which a connection portion 37 for connecting to the roof portion 22 is provided on one end side, two columns 38 are provided vertically, and casters 39 are attached on the other end side. Reference numeral 40 is an auxiliary beam that is provided between the vertical frame 35 and the column 38 to reinforce the strength of the column 38. Reference numeral 41 is a horizontal frame detachably attached between the columns 38 of the pair of vertical frames 35, and 42 is the column 38.
And the side curtain 2 of the main body of the house provided on the horizontal frame 41
3 is a side curtain mounting rail, 43 is a turnbuckle, and 44 is a metal beam.

In order to assemble the house main body 21 thus constructed, the four vertical frames 35 are first folded and the horizontal frames 41 are mounted between the columns 38. Then, using the mounting bracket 45, as shown in FIG.
As shown in, the house main body side curtain 23 is mounted on the side curtain mounting rails 42 provided on the column 38 and the horizontal frame 41. At this time, the mounting bracket 45, as shown in FIG.
The valve body 45a is configured to be openable and closable, and by pressing the valve body 45a against the side curtain mounting rail 42,
It is installed. In the corner portion, the slack portion 25 is provided on the house main body side curtain 23, and the house main body side curtain 2 is further provided.
The three members are connected to each other by fasteners 24. afterwards,
As shown in FIG. 5, the vertical frame 35 is rotated and extended by the pin joint 36, and fixed and connected by the bolts 46 and the like. Next, the metal beam 44 is bridged, the metal beam 44 is tensioned by the turnbuckle 43, and the house main body 21
Is completed.

Next, the structure of the roof portion 22 will be described in detail. FIG. 6 is a perspective view showing the skeleton of the roof portion of the assembled dustproof house according to the first embodiment of the present invention. In the figure, reference numeral 50 is a vertical frame of two pairs of roof portions 22 having different lengths. These vertical frames 50 are provided with a connection portion 51 for connecting to the house main body portion 21 at their lower ends, respectively, and a beam 52.
Are assembled parallel to each other. The assembly of the vertical frame 50 is formed with a step in the height direction, and the guide rails 31 are provided between the upper ends of the pair of short vertical frames 50 and between the upper ends of the pair of long vertical frames 50, respectively.
Are laid horizontally, parallel to each other and with a step. Reference numeral 53 is a ceiling curtain support beam. As shown in FIG. 7, the ceiling curtain support beam 53 engages the pair of guide rails 31 with the rollers 54 mounted on both ends thereof to form a pair of guide rails. Plural erections are provided so as to be movable orthogonal to 31. Then, one end side of the rope 30 is fixed to both ends of the ceiling curtain support beam 53 located at one end of the ceiling curtain support beam 53 that is erected, and one end side of the rope 30 is fixed to the ceiling curtain support beam 53 located at the other side end. Is roller 5
4 is not attached and is locked to the guide rail 31.

Here, as shown in FIGS. 7 and 8, the guide rail 31 has a U-shaped cross section with both ends closed, and the opening side thereof is for preventing the ceiling curtain 28 from being entangled. Rubber pieces 55 are attached, and U-shaped guides 56 for guiding the ropes 30 and pulleys 32 for smoothly operating the ropes 30 are attached to the side surfaces on both ends thereof, respectively. In addition, the roller 54, the rope 30, and the pulley 3
2 constitutes the ceiling curtain support beam moving means.

Then, the roof side curtain 27 is attached to the assembly of the vertical frame 50 so as to cover the four side surfaces thereof in the same manner as the above-mentioned house main body side curtain 23 attachment method. Further, each of the plurality of ceiling curtain support beams 53 provided between the pair of guide rails 31 has a structure shown in FIG.
As shown in FIG. 10 and FIG. 10, the ceiling curtain 28 is sandwiched by the iron plates 57 from above, and the ceiling curtain 28 is attached by tightening the bolts 58 and the nuts 59 to form the roof portion 22. In addition, when the ceiling curtain 28 is closed, the ceiling curtain 28 attached to the ceiling curtain support beam 53 is
The auxiliary side curtain 60 for closing the gap between the roof side curtain 27 and the roof side curtain 27 is attached to the ceiling curtain 28 in the vertical direction.

The main body 2 of the house assembled in this way
As shown in FIG. 11, 1 and the roof part 22 are connected and fixed by fitting the connection part 51 of the roof part 22 to the connection part 37 of the house main body part 21 and tightening the bolt 61 and the nut 62. Assembly of the assembled dustproof house 20 is completed. At this time, in order to lower the connecting work position of the house main body 21 and the roof portion 21, during the connecting work, it is folded by the pin joint 36, and after the work, the vertical frame 3 is connected by the pin joint 36.
5 is rotated to extend it.

Here, the ceiling curtain 28 of the assembled dustproof house 20
The opening / closing operation will be described with reference to FIG. First, the ropes 30 respectively hanging from the left side of the pair of guide rails 31 in the figure are pulled. Then, the pair of guide rails 3
The ceiling support beam 53 located at the right end in the figure of the plurality of ceiling curtain support beams 53 that are installed perpendicular to each other moves in the guide rail 31 to the left side in the figure while the roller 54 rotates. Along with the movement of the ceiling curtain support beam 53 located at the right end to the left side in the figure, the adjacent ceiling curtain support beams 53 are sequentially moved to the left side in the figure. Then, when all the ceiling curtain support beams 53 move to the left side in the figure, the rope 30 is fixed, and as shown in FIG. 12, the opening of the ceiling portion of the roof portion 22 is completed. Then, when the ropes 30 respectively hanging from the right side of the pair of guide rails 31 in the drawing are pulled, the ceiling support beams 53 located at the right end in the figure of the ceiling curtain support beams 53 erected orthogonally between the pair of guide rails 31. Moves in the guide rail 31 to the right in the figure while the roller 54 rotates. With the movement of the ceiling curtain support beam 53 located at the right end to the right side in the figure, the adjacent ceiling curtain support beams 53 are sequentially moved to the right side in the figure. And the ceiling curtain support beam 5 located at the right end
When 3 is completely moved to the right end in the figure, the rope 30 is fixed, and as shown in FIG. 1, the closing of the ceiling portion of the roof portion 22 is completed.

Next, a method of assembling the gas insulated switchgear using the assembled dustproof house 20 according to the first embodiment will be described. First, the gas-insulated electric device 1 is laid at a desired position. Therefore, the house main body 21 and the roof 22 are respectively assembled. Then, the roof portion 22 is lifted on the house main body portion 21 by the crane 3 and the roof portion 22 is connected to the house main body portion 21. Then, the roof part 22 is lifted by the crane 3 and the vertical frame 35 of the house main body part 21 is extended to assemble the assembled dustproof house 20. After that, while inserting the tank 2 connected to the gas insulated electric device 1 through the device through hole 11, the assembled dustproof house 20 is moved to a desired position and installed. Then, the tank 2 to be connected is lifted by the crane 3,
As shown in (a) of FIG. 3, it is inserted into the assembled dustproof house 20 through the device through hole 11. Then, the device through hole 11
Is bound, the outer peripheral portions of the tanks 2 and 2 are sealed, and the air conditioner 16
Thus, the interior of the assembled dustproof house 20 is air-conditioned so as to meet the assembly environment standard. Then, the worker enters the assembled dustproof house 20 through the entrance / exit 14, and enters the blind plates 2a of the tanks 2 and 2.
Then, the busbars and the tanks 2 and 2 are connected.

After that, the assembled dustproof house 20 is partially or completely disassembled and transported to the next adjacent connecting place,
Repeat the above-mentioned connection work, and all gas-insulated electrical equipment 1
Connect. Then, SF ₆ gas is sealed in the connected gas-insulated electrical equipment 1, tank 2, etc., and the installation of the gas-insulated switchgear is completed.

Here, when the length of the tank 2 to be connected is short, the ceiling portion of the roof portion 22 is opened, and the tank 2 is lifted by the crane 3 to open the tank 2 as shown in FIG. 13 (b). The roof 22 is suspended from the ceiling of the roof 22 and the connection work described above is performed.

Next, the disassembling work of the gas insulated switchgear will be described. First, the skeleton of the house body 21 is assembled and the roof 22 is assembled. Then, the roof portion 22 is lifted up on the frame of the house main body portion 21 by a crane to connect the two. Then, the assembled dustproof house 20 is installed by moving to the disassembly work position, extending the vertical frame 35 while attaching the house main body side curtain 23 through the tank 2 through the device through hole 11. After that, when the tank 2 to be disassembled is long, the connection releasing work is performed while suspending the tank 2 to be disassembled by the crane 3, and the tank 2 is discharged to the outside of the house through the device through hole 11. If the tank 2 to be disassembled is short, the ceiling curtain 28 is opened, and the tank 2 to be disassembled from the opened ceiling by a crane.
While suspending, the disconnection work is performed to suspend the tank 2 from the ceiling.

As described above, according to the first embodiment, since the ceiling curtain 28 of the roof portion 22 of the assembled dustproof house 20 is configured to be openable and closable, the gas insulated switchgear is assembled (disassembled).
The ceiling curtain 28 can be opened and closed according to the length of the tank 2 or the like to be handled. Therefore, even if the length of the tank 2 to be assembled (disassembled) is changed, it is not necessary to remove the roof part 6 by using the crane 3 each time and re-assemble as in the conventional assembled dustproof house 4, so that the safety is ensured. Moreover, the gas-insulated switchgear can be easily assembled and disassembled, and the work efficiency and work safety thereof can be greatly improved.

A connecting portion 51 is provided on the lower end side of the vertical frame 50 of the roof portion 22, while a connecting portion 37 is provided on the upper end side of the vertical frame 35 of the house main body portion 21, and the connecting portion 51 of the roof portion 22 is provided. Is configured to be fitted to the connection portion 37 of the house body portion 21 and can be connected by the bolt 61 and the nut 62, so that the house body portion 21 and the roof portion 22 can be attached and detached. Therefore, when assembling the assembled dust-proof house 20, the house body 21 and the roof 22 can be assembled separately, the assembly work position is lowered, the work at high places is reduced, and the assembling workability is improved. be able to. Further, when the assembled dustproof house 20 is moved, the house body 21 and the roof 22 are usually moved in an integrated state. However, in a place where height is restricted, the house body 21 and the roof 22 are integrated. The part 22 and the part 22 can be moved separately, and the work efficiency of the move can be improved.

A pair of guide rails 31 are arranged in parallel with each other between the vertical frames 50, and a plurality of ceiling curtain support beams 53 to which the ceiling curtain 28 is attached are orthogonal to and parallel to each other between the pair of guide rails 31. Rollers 54 that engage with the guide rails 31 are attached to both ends of the plurality of ceiling curtain support beams 53, one end of which is attached to the ceiling curtain support beams 53, and the rope 30 is hung over the pulley 32 and hung down. Therefore, the ceiling curtain 28 can be opened and closed by pulling the rope 30. Therefore, the opening / closing operation of the ceiling curtain 28 can be easily performed with a simple opening / closing mechanism.

The pair of guide rails 31 are horizontal,
Moreover, since the steps are arranged with a step, the plurality of ceiling curtain support beams 53 provided between the pair of guide rails 31 are inclined. Therefore, the ceiling curtain 28 attached to the ceiling curtain support beam 53 also has an inclination, and in the case of rainy weather, rainwater flows down without collecting, and damage to the ceiling curtain 28 due to the own weight of the collected rainwater is prevented.

The vertical frame 35 of the house body 21
Since the pin joint 36 is provided in the housing, the house main body 21 can be assembled with the vertical frame 35 folded. Then, after the roof 22 is attached to the house body 21, the vertical frame 35 is extended to assemble the assembled dustproof house 20. Further, the house frame 21 and the roof 22 can be disassembled by folding the vertical frame 35. Therefore, the work position is lowered, the work at high places is reduced, and
Workability of disassembly can be improved.

Further, since the vertical frame 35 and the horizontal frame 41 constituting the framework of the house main body 21 are disassembleable, the assembled dustproof house 20 is disassembled into the respective constituent parts, and the assembled dustproof house 20 is installed in a small volume on site. Can be transported to.

Further, since the house main body side curtain 23 is attached to the skeleton of the house main body portion 21 so that the slack portion 25 is formed at the corner portion, the slack portion 25 has a margin of the house main body portion 23 so that the tank 2 can be accommodated. Device through hole 11 in position
The position of can be easily adjusted and the assembled dustproof house 2
0 can be easily installed.

Further, since the guide rail 31 is provided with the rubber plate 55, when the ceiling curtain support beam 53 is moved, the ceiling curtain 28 can be reliably opened and closed without being entangled with the ceiling curtain 28. .

Example 2. FIG. 14 is a perspective view showing the structure of the roof portion of the assembled dustproof house according to the second embodiment of the present invention. In the second embodiment, a pair of guide rails 31 are installed between the upper ends of the short vertical frame 50 and the long vertical frame 50 in parallel with each other with an inclination. Then, the plurality of ceiling curtain support beams 5 to which the ceiling curtain 28 is attached
3 is installed between a pair of guide rails 31 so as to be orthogonal to the guide rails 31. Here, the ceiling curtain support beam 53 located at one end (upper side in the drawing) of the plurality of ceiling curtain support beams 53.
Does not attach the roller 54 and is the locking portion 6 of the guide rail 31.
1 is engaged. Note that the other configurations are the same as those in the first embodiment
Is configured similarly to.

According to the second embodiment, like the first embodiment, the operation of opening and closing the ceiling curtain 28 can be performed by manually operating the rope 60. Further, since the ceiling curtain support beams 53 are arranged in a direction orthogonal to the inclination direction of the ceiling curtain 28, rainwater may collect if the ceiling curtain 28 is loosened, and the ceiling curtain 28 may be damaged. Except for the above, the same effect as that of the first embodiment is obtained.

Example 3. In the first embodiment, the pin joint 36 is provided on the vertical frame 35 of the house body 21,
Although the vertical frame 35 is configured to be foldable, in the third embodiment, as shown in FIG.
The hollow support frame 63 and the support frame 63
The movable frame 64 is movably inserted into the movable frame 64 so that it can be expanded and contracted. The support frame 63 has a through hole 65.
Further, a plurality of through holes 66 are formed in the moving frame 64 at predetermined intervals.

In order to extend and contract the vertical frame 62 constructed as described above, the moving frame 64 is moved to a position where the through hole 65 and the through hole 66 coincide with each other, and the stopper 67 is inserted through the through holes 65 and 66. The moving frame 64 to the supporting frame 6
Fix to 3. Therefore, in the assembling / disassembling work of the assembled dustproof house 20 and the house body 21, the vertical frame 62 can be reduced to lower the working position, and the same effect as that of the first embodiment can be obtained. Further, the height of the assembled dustproof house 20 can be adjusted by the expansion and contraction of the vertical frame 62, and even if the working environment for assembling and disassembling the gas insulated switchgear is restricted in height, it can be sufficiently dealt with.

In each of the above embodiments, the guide rail 3
Although the opening / closing operation of the ceiling curtain 28 is performed by the manual operation of the rope 60 attached to one end side of 1, the opening / closing operation of the ceiling curtain 28 may be performed electrically.

In each of the above embodiments, the pulleys 32 are attached to both ends of each of the pair of guide rails 31, but the pulleys 32 are not limited to the guide rails 31, but may be, for example, the vertical frame 50 or the beams 52. May be attached. In this case, the attachment position of the pulley 32 is preferably below both end portions of the guide rail 31.

[0053]

Since the present invention is constituted as described above, it has the following effects.

In the first aspect of the present invention, means for opening and closing the ceiling curtain of the roof portion is provided, and since the ceiling curtain can be opened and closed, especially when the length of the tank or the like to be connected or disassembled is short. It is possible to open the ceiling curtain and suspend the crane from the open ceiling for connection or disassembly work. Therefore, it is not necessary to disassemble and reassemble the house each time the length of the tank or the like to be connected or disassembled changes, and the work efficiency of assembling and disassembling the gas insulated switchgear and the composite switch can be improved.

Further, in the second invention of the present invention, in the first invention, the roof portion is detachably attached to the house body portion, so that the house body portion and the roof portion can be separately assembled. . Therefore, the position for assembling the house is lowered, the work at a high place is reduced, and in addition to the effect of the first invention, the workability for assembling the house can be improved.

According to a third aspect of the present invention, in the first aspect of the present invention, a ceiling curtain support beam is provided between the pair of guide rails arranged in parallel with each other so as to be orthogonal to the guide rails and parallel to each other. It is possible to open and close the ceiling curtain because it is movably installed, the ceiling curtain is attached to the ceiling curtain support beams, and the ceiling curtain support beam moving means for moving the ceiling curtain support beams along the guide rails is provided. Can be done easily.

Further, in the fourth invention of the present invention, in the above-mentioned third invention, since the pair of guide rails are arranged horizontally to each other with a step, the ceiling curtain support beams are installed so as to be inclined, The ceiling curtain also has a slope. Therefore, the rainwater flows down quickly without collecting, and in addition to the effect of the third invention, it is possible to prevent damage to the ceiling curtain due to the accumulation of rainwater.

According to a fifth aspect of the present invention, in the third aspect of the invention, rollers that engage a pair of guide rails are attached to both ends of the ceiling curtain support beam, and both ends of each of the pair of guide rails are attached. Alternatively, a pulley is arranged below it, and one end of the rope is attached to both ends of the ceiling curtain support beam located at one end of the ceiling curtains, and the other end is hung on each pulley. The ceiling curtain can be opened and closed by moving the ceiling curtain support beam by manually operating the rope. Therefore, in addition to the effect of the third aspect of the invention, the opening / closing mechanism for the ceiling curtain can be made to have a simple structure to reduce the cost.

Further, in the sixth aspect of the present invention, in the second aspect of the present invention, since the vertical frame of the house main body is configured to be foldable, when assembling and disassembling the house and the house main body, You can fold the vertical frame and lower the work position to reduce work in high places. Therefore, the workability of assembling the house can be further improved.

Further, in the seventh aspect of the present invention, in the second aspect of the invention, since the vertical frame of the house main body is configured to be expandable and contractible, when assembling and disassembling the house and the house main body, The vertical frame can be reduced to lower the work position, reduce the work at high places, and further improve the assembling workability of the house. Also, when installing the house, the vertical frame can be expanded and contracted to adjust the height of the house, and it is sufficient to cope with height restrictions on the working environment of the gas-insulated switchgear and compound switchgear. You can

Further, in the eighth invention of the present invention, in the second invention, since the vertical frame and the horizontal frame of the house main body are disassembled, the assembling / disassembling work of the house is simple. At the same time, the house is disassembled into its constituent parts to have a small volume and can be easily transported.

[Brief description of drawings]

FIG. 1 is a perspective view showing an assembled state of an assembled dustproof house according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a skeleton of a house main body portion in the assembled dustproof house according to the first embodiment of the present invention.

FIG. 3 is a perspective view showing a mounted state of a side curtain of a main body of the assembled dustproof house according to the first embodiment of the present invention.

FIG. 4 is a side view for explaining the operation of the mounting member of the side curtain of the main body of the house in the assembled dustproof house according to the first embodiment of the present invention.

FIG. 5 is a perspective view for explaining the folding operation of the vertical frame of the house body of the assembled dustproof house according to the first embodiment of the invention.

FIG. 6 is a perspective view showing a skeleton of a roof portion in the assembled dustproof house according to the first embodiment of the present invention.

FIG. 7 is a perspective view showing an engaged state of a ceiling curtain support beam and a guide rail in the assembled dustproof house according to the first embodiment of the present invention.

FIG. 8 is a perspective view showing an end portion of the guide rail in the assembled dustproof house according to the first embodiment of the present invention.

FIG. 9 is a perspective view showing a mounted state of the ceiling curtain in the assembled dustproof house according to the first embodiment of the present invention.

10 is a cross-sectional view taken along the line XX of FIG.

FIG. 11 is a perspective view showing a connected state of the house body and the roof in the assembled dustproof house according to the first embodiment of the present invention.

FIG. 12 is a perspective view showing a released state of the ceiling curtain in the assembled dustproof house according to the first embodiment of the present invention.

FIG. 13 is a schematic view showing an assembling method of the gas insulated switchgear using the assembled dustproof house according to the first embodiment of the present invention.

FIG. 14 is a perspective view showing a structure of a roof portion in the assembled dustproof house according to the second embodiment of the present invention.

FIG. 15 is a perspective view for explaining the expansion and contraction operation of the vertical frame of the house body of the assembled dustproof house according to the third embodiment of the present invention.

FIG. 16 is a schematic view showing a method of assembling a gas insulated switchgear using a conventional assembled dustproof house.

FIG. 17 is a perspective view showing an example of a conventional assembled dustproof house, (a) showing its skeleton, and (b) showing a completed state.

[Explanation of symbols]

 11 Equipment Through Hole 20 Assembly Dustproof House 21 House Main Body 22 Roof Part 23 House Main Part Side Curtain 27 Roof Side Curtain 28 Ceiling Curtain 30 Rope (Ceiling Curtain Support Beam Moving Means) 31 Guide Rail 32 Pulley (Ceiling Curtain Support Beam Movement) Means) 35 Vertical frame 41 Horizontal frame 53 Ceiling curtain support beam 54 Roller (ceiling curtain support beam moving means) 62 Vertical frame

Claims (8)

[Claims] 1. A house main body in which each side of a box-shaped frame is covered by a side curtain of the main body of the house, a device through hole provided in both side portions of the side curtain of the house main body, and each side is A box-shaped roof part, which is covered by the roof side curtain and whose ceiling part is covered by the ceiling curtain, is attached to the house main body part, and means for opening and closing the ceiling curtain of the roof part. Assembly dustproof house characterized by. 2. The assembled dust-proof house according to claim 1, wherein the roof part is detachably attached to the house body part. 3. The roof portion includes a pair of guide rails arranged in parallel with each other, and the roof rail is orthogonal to the pair of guide rails.
Also, a plurality of ceiling curtain support beams movably installed between the pair of guide rails in parallel to each other and having ceiling curtains attached, and a ceiling curtain for moving the ceiling curtain support beams along the pair of guide rails. The assembled dust-proof house according to claim 1, further comprising a support beam moving means. 4. The pair of guide rails are horizontal to each other,
4. The assembled dust-proof house according to claim 3, wherein a plurality of ceiling curtain support beams, which are arranged with a step and are installed between the pair of guide rails, are inclined. 5. The ceiling curtain support beam moving means includes rollers that are attached to both ends of each of the plurality of ceiling curtain support beams and that engage with a pair of guide rails, and both ends of each of the pair of guide rails. The pulleys arranged below and one end of each of the plurality of ceiling curtain support beams are attached to both ends of the ceiling curtain support beam located at one end of the plurality of ceiling curtain support beams, and the pulleys are hung on each of the pulleys and connected to the other end. The assembled dust-proof house according to claim 3, wherein the part is provided with a hanging rope. 6. The box-shaped skeleton of the main body of the house has vertical frames that are erected at each of the four corners, and horizontal frames that are connected so as to be orthogonal to the upper ends of the adjacent vertical frames. The assembled dust-proof house according to claim 2, wherein the vertical frame is configured to be foldable. 7. The box-shaped skeleton of the main body of the house has vertical frames that are erected at each of the four corners, and horizontal frames that are connected so as to be orthogonal to the upper ends of the adjacent vertical frames. The assembled dustproof house according to claim 2, wherein the vertical frame is configured to be expandable and contractible. 8. The box-shaped frame of the house body has vertical frames that are erected at each of the four corners, and horizontal frames that are connected so as to be orthogonal to the upper ends of the adjacent vertical frames. The assembled dustproof house according to claim 2, wherein the vertical frame and the horizontal frame are configured to be disassembled.