CN219863500U - Detachable partition wall structure of underground main transformer room - Google Patents
Detachable partition wall structure of underground main transformer room Download PDFInfo
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- CN219863500U CN219863500U CN202320760259.0U CN202320760259U CN219863500U CN 219863500 U CN219863500 U CN 219863500U CN 202320760259 U CN202320760259 U CN 202320760259U CN 219863500 U CN219863500 U CN 219863500U
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- explosion
- main transformer
- fire
- partition wall
- proof
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- 238000005192 partition Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims abstract description 16
- 239000004567 concrete Substances 0.000 claims abstract description 6
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 6
- 239000008397 galvanized steel Substances 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 239000002360 explosive Substances 0.000 abstract 1
- 238000004880 explosion Methods 0.000 description 17
- 230000006378 damage Effects 0.000 description 6
- 239000011455 calcium-silicate brick Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a detachable partition wall structure of an underground main transformer chamber, wherein the detachable partition wall is arranged at an opening of the underground main transformer chamber and comprises an installation framework, an explosion-proof plate and a small door, the installation framework comprises a plurality of steel columns vertically arranged and a plurality of rows of connecting beams horizontally arranged between the steel columns, the steel columns are fixed with concrete at the opening of the underground main transformer chamber by bolts, and the connecting beams are also fixed with the steel columns by bolts; the explosion-proof plate arranged on the surface of the installation framework is connected with the connecting beam by adopting bolts, and the small door is arranged at the lower part of the installation framework. When the transformer needs to be overhauled, the partition wall structure can be disassembled step by step. When the main transformer indoor transformer explodes, the main transformer indoor pressure becomes large, and the explosion-proof plate is destroyed because of the shock wave, and the explosion-proof plate can open by oneself or drop, can let out the explosive power promptly and scatter, can aim at fire part for the fire gun and put out a fire, provide the space of putting out a fire, increase the accuracy and the efficiency of putting out a fire.
Description
Technical Field
The utility model relates to an underground main transformer room of a hydropower station, in particular to a detachable partition wall structure of the underground main transformer room with fireproof and explosion-proof functions.
Background
An oil-immersed transformer is one of the important electromechanical devices in a hydropower station, and causes significant losses once a failure occurs, although the failure rate of the main transformer is not high. Light weight may cause equipment failure; heavy fire and even explosion can occur. When a fire accident occurs, the main transformer room needs to have a fireproof function, so that the safety of patrol and operation personnel is ensured. According to the related specifications, the oil immersed transformer needs to be separated from other parts by a fireproof partition wall with the fire resistance limit not lower than 3.0h and a floor slab with the fire resistance limit not lower than 1.5h, and a door on the fireproof partition wall needs to be a fire-proof door of class A. When an explosion accident occurs, the main transformer chamber needs to have a corresponding explosion-proof function, so as to ensure the safety of the main structure of the building. According to the related specifications, the pressure relief facilities are arranged at the positions with explosion danger, and the pressure relief facilities are preferably made of materials such as light roof plates, light walls, doors and windows which are easy to relieve pressure and the like, and do not generate sharp fragments during explosion. The quality of the light roof board and the light wall body used as the pressure relief facilities is not more than 60 kg/square meter. Therefore, taking the corresponding countermeasure has a very important meaning.
In the current engineering practice, a main transformer chamber opening is usually separated from other parts by using a 240mm thick autoclaved sand-lime brick masonry wall as a fireproof partition wall, and a fire door is adopted as a door on the fireproof partition wall. The concrete method is that 240 autoclaved sand-lime bricks (strength is not less than MU 10) are used for masonry, phi 6@200 (bidirectional) steel bars are arranged on two sides of a wall body, phi 6 pull-joint ribs@600 plum blossom-shaped arrangement is arranged for fixing the wall body, and cement mortar with the thickness of 20:2.5 is smeared. The technical scheme has the following defects:
(1) The mass of the autoclaved sand-lime brick masonry wall with the thickness of 240mm is about 440 kg/square meter, which is far greater than 60 kg/square meter, and the pressure release requirement cannot be met. When the main transformer indoor transformer is in fire or explosion, the autoclaved sand-lime brick masonry wall with the thickness of 240mm does not effectively release pressure, so that the safety risk is extremely high, and the fire control and fire extinguishing control dangerous case can not be carried out on site in time. (2) The anti-explosion pressure value of the autoclaved sand-lime brick masonry wall with the thickness of 240mm cannot be calculated and measured, so that the method can only be calculated as an anti-explosion measure and cannot be used as an anti-explosion wall. (3) When large-scale equipment needs to be installed, maintained and replaced, the autoclaved gray sand brick masonry wall with the thickness of 240mm needs to be dismantled, so that the defects of pollution to the operation environment, difficulty in construction organization and the like are overcome.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a detachable partition wall structure of an underground main transformer room, which reduces the damage to the inside and the outside when an underground main transformer room transformer explodes, and ensures that the underground main transformer room has fireproof and explosion-proof functions when a fire disaster and an explosion occur in the main transformer room. The anti-explosion and explosion venting capabilities are required. When the transformer needs to be overhauled, the environmental pollution is reduced, and a simple and convenient maintenance scheme is provided.
In order to solve the technical problems, the utility model adopts the following technical scheme: the detachable partition wall structure of the underground main transformer chamber is arranged at an opening of the underground main transformer chamber, the detachable partition wall comprises an installation framework, an explosion-proof plate and a small door, the installation framework comprises a plurality of steel columns which are vertically arranged and a plurality of rows of connecting beams which are horizontally arranged and connected between the steel columns, the steel columns are fixed with the concrete of the opening of the underground main transformer chamber by bolts, and the connecting beams are also fixed with the steel columns by bolts; the explosion-proof plate arranged on the surface of the installation framework is connected with the connecting beam by adopting bolts, and the small door is arranged at the lower part of the installation framework.
The explosion-proof plate is made of a fireproof plate formed by forcibly pressing an upper perforated galvanized steel plate with the thickness of 0.5mm and a lower perforated galvanized steel plate on fiber cement with the thickness of 8.5 mm. The explosion-proof plate (5) has technical performance indexes, the mass is less than or equal to 25 kg/square meter, and the explosion-proof pressure value can reach 1400KPa.
The surface of the explosion-proof plate is brushed with fireproof paint, and the requirement that the fireproof limit is not lower than 3.0 hours is met.
The small door adopts a fire door class A.
The beneficial effects of the utility model are as follows: (1) When the transformer needs to be overhauled, the structure can be disassembled step by step, and after the transformer is overhauled, the structure can be reinstalled and restored. Has the advantages of light weight, easy assembly, easy disassembly, recycling, and the like. (2) When the main transformer indoor transformer is in fire, the explosion-proof plate can resist the harm generated by the fire to a certain extent, so that the damage of the underground main transformer room to external inspection and operation personnel is reduced. (3) When the transformer is exploded, the pressure in the main transformer chamber is increased, the explosion-proof plate is destroyed by shock waves, the explosion-proof plate can be opened or fallen off by itself, and the explosion force can be rapidly dissipated; can put out a fire for the fire portion is aimed at to the fire gun, provides the space of putting out a fire, increases the accuracy and the efficiency of putting out a fire.
Drawings
Fig. 1 is a schematic view of a detachable partition wall structure of an underground main transformer room of the present utility model.
Fig. 2 is an enlarged view of a in fig. 1.
Fig. 3 is an enlarged view of B in fig. 1.
Fig. 4 is a detail of the node of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1, the detachable partition wall structure of the underground main transformer chamber of the utility model is arranged at the hole of the underground main transformer chamber, the detachable partition wall comprises an installation framework, an explosion-proof plate 5 and small doors 8, the installation framework comprises a plurality of steel columns 1 which are vertically arranged and a plurality of rows of connecting beams 2 which are horizontally arranged and are connected between the steel columns, the steel columns 1 and the concrete of the hole of the underground main transformer chamber are fixed by bolts 7, and the connecting beams 2 and the steel columns 1 are also fixed by bolts 7; the explosion-proof plate 5 arranged on the surface of the installation framework is connected with the connecting beam 2 by adopting a bolt 6, and the small door 8 is arranged at the lower part of the installation framework.
The explosion-proof plate 5 is made of a fireproof plate formed by forcibly pressing an upper perforated galvanized steel plate with the thickness of 0.5mm and a lower perforated galvanized steel plate with the thickness of 8.5mm on fiber cement. The explosion-proof plate 5 has technical performance index, the quality is less than or equal to 25 kg/square meter, and the explosion-proof pressure value can reach 1400KPa.
The surface of the explosion-proof plate 5 is coated with fireproof paint, and the requirement that the fireproof limit is not lower than 3.0 hours is met.
The small door 8 adopts a fire door class A.
Specifically, as shown in fig. 2-4, in this embodiment, the steel column 1 and the steel plate 4 are welded and fixed on the concrete floor of the underground main transformer chamber opening by bolts 7. The contact beam 2 and the steel plate 3 are welded and fixed on the steel column 1 through bolts 7. And the welding parts are coated with antirust paint.
The steel column 1 adopts [14# hot dip galvanized channel steel, and the connecting beam 2 adopts [8# hot dip galvanized channel steel. The steel plate 3 adopts 58×160×8 bearing steel plates, the steel plate 4 adopts 200×200×10 bearing steel plates, the bolt 6 adopts M8×60 bolts, and the bolt 7 adopts M12×100 bolts. The specification of the explosion-proof board 5 is 2440 multiplied by 1220 multiplied by 9.5mm, the surface is brushed with fireproof paint, the fire-proof limit is not lower than 3.0 hours, and the explosion-proof board is produced by a manufacturer with a production license approved by the country, and the product belongs to a first grade product.
When the transformer needs to be overhauled, the structure can be disassembled step by step, and after the transformer is overhauled, the structure can be reinstalled and restored. Has the advantages of light weight, easy assembly, easy disassembly, recycling, and the like. When the main transformer indoor transformer is in fire, the explosion-proof plate can resist the harm generated by the fire to a certain extent, so that the damage of the underground main transformer room to external inspection and operation personnel is reduced. When the transformer is exploded, the pressure in the main transformer chamber is increased, the explosion-proof plate is destroyed by shock waves, the explosion-proof plate can be opened or fallen off by itself, and the explosion force can be rapidly dissipated; can put out a fire for the fire portion is aimed at to the fire gun, provides the space of putting out a fire, increases the accuracy and the efficiency of putting out a fire.
The utility model reduces the damage of the underground main transformer room to outside inspection and operation personnel on the premise of meeting the pressure relief function, and ensures that the main transformer room has the functions of fire prevention and explosion prevention when fire and explosion occur in the main transformer room. The anti-explosion and explosion venting capabilities are required. When the transformer needs to be overhauled, the structure can be disassembled step by step, and after the transformer is overhauled, the structure can be reinstalled and restored. Has the advantages of light weight, easy assembly, easy disassembly, recycling, and the like. Reduces the environmental pollution and provides a simple and convenient maintenance scheme.
The above-described embodiments are only for illustrating the technical spirit and features of the present utility model, and it is intended to enable those skilled in the art to understand the content of the present utility model and to implement it accordingly, and the scope of the present utility model is not limited to the embodiments, i.e. equivalent changes or modifications to the spirit of the present utility model are still within the scope of the present utility model.
Claims (4)
1. The detachable partition wall structure of the underground main transformer chamber is characterized in that the detachable partition wall comprises an installation framework, explosion-proof plates (5) and small doors (8), the installation framework comprises a plurality of steel columns (1) which are vertically arranged and a plurality of rows of connecting beams (2) which are horizontally arranged between the steel columns, the steel columns (1) are fixed with the concrete of the hole of the underground main transformer chamber by bolts, and the connecting beams (2) are also fixed with the steel columns (1) by bolts; the explosion-proof plate (5) arranged on the surface of the installation framework is connected with the connecting beam (2) by bolts, and the small door (8) is arranged at the lower part of the installation framework.
2. The detachable partition wall structure of an underground main transformer room according to claim 1, wherein the explosion-proof plate (5) is made of a fireproof plate formed by forcibly pressing an upper perforated galvanized steel sheet and a lower perforated galvanized steel sheet on a fiber cement with the thickness of 8.5mm, the mass of the explosion-proof plate (5) is less than or equal to 25 kg/square meter, and the explosion-proof pressure value reaches 1400KPa.
3. The detachable partition wall structure of an underground main transformer room according to claim 2, wherein the surface of the explosion-proof plate (5) is painted with a fire-proof paint and meets the requirement that the fire-proof limit is not less than 3.0 hours.
4. The detachable partition wall structure of an underground main transformer room according to claim 1, wherein the small door (8) adopts a fire door class a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320760259.0U CN219863500U (en) | 2023-04-07 | 2023-04-07 | Detachable partition wall structure of underground main transformer room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320760259.0U CN219863500U (en) | 2023-04-07 | 2023-04-07 | Detachable partition wall structure of underground main transformer room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219863500U true CN219863500U (en) | 2023-10-20 |
Family
ID=88338870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320760259.0U Active CN219863500U (en) | 2023-04-07 | 2023-04-07 | Detachable partition wall structure of underground main transformer room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219863500U (en) |
-
2023
- 2023-04-07 CN CN202320760259.0U patent/CN219863500U/en active Active
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