CN-121976700-A - Assembled accident oil pool structure of transformer substation and mounting mode thereof

Abstract

The utility model provides an assembled accident oil pool structure of transformer substation and mounting means thereof, this structure includes leveling bottom plate, mounting panel, oil baffle and tight strake, and through draw-in groove grafting, bolted connection and tight strake are embraced fixedly and are formed assembled structure, cooperation filler strip adjustable braced system and dual joint strip design, realize high accuracy installation and reliable impervious leak performance. The installation mode comprises the steps of foundation pit excavation leveling, prefabricated component laying, secondary leveling grouting, oil baffle plugging and fixing, oil level sensor installation, system detection maintenance and the like, and the laser level instrument positioning and mechanical hoisting are adopted to ensure component installation accuracy. The invention changes the traditional in-situ pouring mode into a 'factory prefabrication-in-situ assembly' mode, obviously shortens the construction period, greatly improves the installation precision, reduces the construction safety risk, realizes zero emission of construction waste, realizes intelligent monitoring through the oil level sensor, and is suitable for green construction and efficient operation and maintenance of an accident oil pool of a transformer substation.

Inventors

• YANG ZHI
• WANG ZHEN
• WEN YI
• LI QUAN
• QUAN TINGTING
• HAN TIAN
• WANG FANG
• ZHU BANGSHENG
• TU GUOBIN
• LU JUN
• YANG PENG
• QIN SEN
• LI TONGBIN
• GONG ZHENGANG
• HUANG XIANG

Assignees

• 国网湖北省电力有限公司宜昌供电公司
• 宜昌三峡送变电工程有限责任公司

Dates

Publication Date

20260505

Application Date

20251009

Claims (10)

1. 1. The transformer substation assembled accident oil pool structure comprises a leveling base plate (1), a mounting plate (2), a tightening strip (4) and an oil baffle (3), and is characterized in that the leveling base plate (1) is laid in a foundation pit dug in advance, the mounting plate (2) is fixedly mounted on the upper end face of the leveling base plate (1), the oil baffle (3) is inserted into the upper end face of the mounting plate (2), and the tightening strip (4) is connected to the outer wall of the oil baffle (3).
2. 2. The transformer substation assembled accident oil pool structure according to claim 1, wherein the bottom surface of the leveling base plate (1) is inserted with filler strips (6), and the filler strips (6) with different thicknesses are inserted with different positions of the leveling base plate (1) so that the leveling base plate (1) is in a horizontal state after being laid.
3. 3. The transformer substation assembled accident oil pool structure according to claim 2, wherein the bottom surface of the leveling base plate (1) is provided with base plate clamping grooves (101) at equal intervals, the upper end surface of the base plate (6) is correspondingly provided with base plate clamping rails (601), and the base plate (6) is spliced with the corresponding base plate clamping grooves (101) through the base plate clamping rails (601).
4. 4. The transformer substation assembled accident oil pool structure according to claim 1, wherein threaded holes (203) are correspondingly formed at edges of the mounting plate (2) and the leveling base plate (1), and connecting bolts (204) are in threaded connection with the threaded holes (203) to connect the mounting plate (2) and the leveling base plate (1) into a whole.
5. 5. The transformer substation assembled accident oil pool structure according to claim 4, wherein the upper end surface of the mounting plate (2) is provided with an annular fixing ring (201), the upper end surface of the fixing ring (201) is provided with a clamping groove (202), and the oil baffle (3) is vertically inserted into the clamping groove (202) and forms a surrounding structure.
6. 6. The transformer substation assembled accident oil pool structure according to claim 5, wherein the joint of the oil baffle plate (3) is provided with a sealing rubber strip (5), the bottom surface of the sealing rubber strip (5) is inserted in the clamping groove (202), the side surface of the sealing rubber strip (5) is provided with a sealing clamping rail (501), the inner side surface of the oil baffle plate (3) is correspondingly provided with a sealing groove (301), and the sealing rubber strip (5) is clamped with the sealing groove (301) through the sealing clamping rail (501) at the side part of the sealing rubber strip.
7. 7. The transformer substation assembled accident oil pool structure according to claim 1, wherein the outer wall of the oil baffle plate (3) is sleeved with a tightening strap (4), the end part of the tightening strap (4) is connected with an ear plate (401), a connecting hole (402) is formed in the ear plate (401), and a connecting screw (403) penetrates through the connecting hole (402) and then is in threaded connection with a locking nut (404), so that the tightening strap (4) is in encircling clamping fixation with the oil baffle plate (3).
8. 8. The transformer substation assembled accident oil pool structure according to claim 1, wherein the inner wall of the oil baffle (3) is provided with an oil level sensor (7), and the oil level sensor (7) is close to the upper end of the oil baffle (3).
9. 9. The substation-mounted accident oil pool structure according to any one of claims 1 to 8, wherein the mounting manner of the substation-mounted accident oil pool comprises the steps of: S1, excavating a foundation pit at an installation site of the transformer according to the specification of the transformer, filling the foundation pit with concrete and carrying out preliminary leveling; S2, after the bottom surface of the concrete foundation pit is solidified, laying a leveling base plate (1) on the upper end surface of the concrete foundation pit, and mutually splicing the leveling base plates (1) to form an integral plane; S3, splicing filler strips (6) with different thicknesses on the bottom surface of the leveling base plate (1), enabling the spliced leveling base plate (1) to be in an integral horizontal state, and filling concrete between the leveling base plate (1) and the bottom surface of the foundation pit after secondary leveling; S4, vertically inserting the oil baffle (3) into the clamping groove (202), and mutually surrounding the oil baffle (3) to form a surrounding structure; s5, inserting a sealing adhesive tape (5) between the splicing surfaces of the oil baffle plates (3); S6, sleeving a tightening strap (4) on the outer side surface of the oil baffle (3), connecting the tightening strap (4) end to end through a connecting screw (403) and a locking nut (404), and tightening and fixing the oil baffle (3); S7, arranging an oil level sensor (7) on the inner side surface of the oil baffle plate (3), and connecting the oil level sensor (7) with a remote control center through a signal line; s8, detecting and maintaining the installed accident oil pool.
10. 10. The substation-assembled accident oil pool structure according to claim 9, wherein step S8 comprises the following sub-steps: S8.1, injecting water into the oil pool until the upper end of the oil baffle plate (3) is at a reasonable height, recording water level at regular time, checking the joint of the leveling base plate (1) and the foundation pit, the joint of the oil baffle plate (3) and the joint of the sealing rubber strip (5), and detecting whether the water level falls to reach the standard and no water seepage trace is qualified within the monitoring period, otherwise, replacing the sealing rubber strip (5) or filling micro-expansive concrete, and detecting again until the water level is qualified; S8.2, checking a connecting screw (403) at an ear plate (401) at the end part of the tightening strap (4) by using a torque wrench to ensure that the tightening torque reaches the standard, detecting the perpendicularity of the oil baffle plate (3) by using a laser line projector to ensure the deviation compliance, checking the installation firmness of the oil level sensor (7), ensuring that a light-dialing signal line is not loosened, and ensuring that a sensor signal received by a remote control center is normal; S8.3, emptying clear water after the concrete is detected to be qualified, performing moisture preservation and maintenance on the concrete filled in the S3, covering soaked geotechnical cloth and regularly sprinkling water to ensure compliance of maintenance time; And S8.4, after maintenance is finished, spraying an epoxy coal tar pitch anti-corrosion layer on the inner wall of the oil baffle plate (3) and the upper surface of the leveling base plate (1), controlling the thickness of the coating, standing until the coating is completely solidified, checking the installation record, and confirming that the appearance of the oil pool is free from deformation and the joint is free from damage on site, so that inspection and acceptance are finished.

Description

Assembled accident oil pool structure of transformer substation and mounting mode thereof Technical Field The invention relates to the technical field of construction of electrical equipment, in particular to a transformer substation assembly type accident oil pool structure and an installation mode thereof. Background The accident oil pool is used as a key structure of a transformer substation and has the function of storing discharged transformer oil when the main transformer fails. The traditional accident oil pool of the transformer substation generally adopts an on-site pouring construction mode, mainly comprises two types of a round shape and a rectangular shape, is limited by the occupied area of the transformer substation, and the rectangular shape gradually replaces the round shape due to the fact that the field can be utilized more efficiently. However, the conventional construction mode has significant drawbacks: 1. the method comprises a plurality of working procedures such as large-area excavation of a deep foundation pit, on-site formwork supporting, steel bar binding, concrete pouring and the like, wherein each working procedure needs to wait for the solidification of the previous working procedure, so that the whole construction period is long; 2. the hidden danger of slope collapse exists in deep foundation pit excavation, the falling risk is increased in high-altitude formwork supporting operation, and the field wet operation environment is complex; 3. the levelness and the verticality are controlled by manual operation, so that the consistency of component installation is difficult to ensure; 4. dust and noise pollution are generated by on-site stirring of concrete, and environmental pollution is easily caused by construction wastewater discharge. With the development of the fabricated building technology, the conventional on-site wet operation mode cannot meet the green construction requirement. In the prior art, although an attempt is made to apply the prefabricated component to the construction of an accident oil pool, the problems of poor component connection tightness, insufficient installation positioning precision, unstable leakage resistance and the like generally exist, and particularly, an assembly type structure system and a matched installation process suitable for a special environment of a transformer substation are lacking. Disclosure of Invention Aiming at the problems in the prior art, the invention provides a modularized assembly type accident oil pool structure, which solves the technical bottleneck of the traditional accident oil pool in the aspects of structural design and installation process by matching with an installation position device positioned by a laser level through an adjustable supporting system of a leveling bottom plate and a filler strip, a clamping groove inserting structure of an oil baffle and an installation plate and a clamping strip encircling type fixing device. In order to solve the technical problems, the invention adopts the following technical scheme: The utility model provides an assembled accident oil pool structure of transformer substation, this structure includes leveling bottom plate, mounting panel, tight strake and oil baffle, and the leveling bottom plate lays in the foundation ditch of having dug in advance, the up end fixed mounting of leveling bottom plate has the mounting panel, the up end grafting of mounting panel has the oil baffle, and the outer wall department of oil baffle is connected with tight strake. In the preferable effect, the bottom surface of the leveling base plate is inserted with the filler strips, and the filler strips with different thicknesses are inserted with different positions of the leveling base plate, so that the leveling base plate is in a horizontal state after being laid. In the preferred effect, the backing plate draw-in groove has been seted up to the bottom surface equidistance of leveling bottom plate, and the up end of backing strip corresponds and is provided with backing strip card rail, the backing strip passes through backing strip card rail and the grafting of backing plate draw-in groove that corresponds. In the preferred effect, the edge of mounting panel and leveling bottom plate corresponds to offer threaded hole, and connecting bolt and threaded hole threaded connection are as an organic whole with mounting panel and leveling bottom plate connection. In the preferable effect, the up end of mounting panel is provided with annular solid fixed ring, the draw-in groove has been seted up to gu fixed ring's up end, and the oil baffle is pegged graft perpendicularly with the draw-in groove and is constituted and enclose the fender structure. In the preferred effect, the junction of oil baffle is provided with joint strip, joint strip's bottom surface is pegged graft in the draw-in groove, and joint strip's lateral surface is provided with sealed card rail, and the seal groove has been seted