Exhaust system for 110kV oil-immersed transformer chamber

Abstract

The utility model relates to the technical field of ventilation and heat dissipation of transformer substations, and discloses an exhaust system for a 110kV oil-immersed transformer room, which is characterized in that a ventilation fan is mounted at a pipe orifice of a ventilation pipeline, and a plurality of groups of hoop positioning components in sliding connection with track sliding strips are sleeved on the outer side of the pipeline of the ventilation pipeline; and a sealing gasket assembly which is in sliding connection with the rail sliding strip and is close to the ventilation fan sleeves the outer side of the pipeline of the ventilation pipeline. When the exhaust system is installed and used, the ventilation pipeline is arranged at the top of the transformer chamber, the pipeline penetrates through the transformer chamber and extends to the outside, the ventilation fan is arranged externally, then the hoop positioning assembly and the sealing gasket assembly are sequentially installed and positioned, installation of the pipeline is completed, and then the ventilation pipeline and the ventilation fan are combined subsequently, so that the ventilation system is formed. Hot air generated by ventilation and heat dissipation at the top of the transformer chamber is timely discharged to the outside, the operation reliability of transformer equipment is improved, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation and heat dissipation of transformer substations, in particular to an exhaust system for a 110kV oil-immersed transformer room. Background Art

[0002] Oil-immersed transformer is a new type of high-performance transformer with a more reasonable structure and better performance. Among them, 110kV oil-immersed transformer, due to its high voltage and current characteristics, is widely used in urban and rural areas, industrial and mining enterprises power grid transformation, hydropower stations and other large power supply places. 110kV oil-immersed transformer is generally installed indoors. Since it generates a lot of heat during operation, it needs to use a corresponding radiator to dissipate heat.

[0003] The radiator is generally composed of a fan and a heat sink. The fan blows cold air in from the bottom of the heat sink. The cold air passes through the heat sink and takes away the heat of the transformer, and becomes hot air and blows out from the top of the heat sink. Since the transformer room is indoors, its internal space configuration is small, and the indoor wall is usually closed on three sides and semi-closed on the front, resulting in poor air circulation in the transformer room, and hot air cannot be discharged to the outside in time. The ambient temperature is very high. If the transformer is placed in a high temperature environment for a long time, it will accelerate the aging of the insulation cardboard and the seal, the deterioration speed of the insulating oil, and easily cause insulation breakdown, oil seepage and leakage, etc. To this end, those skilled in the art provide an exhaust system for a 110kV oil-immersed transformer room to solve the problems raised in the above background technology. Utility Model Content

[0004] The main purpose of the utility model is to provide an exhaust system for a 110kV oil-immersed transformer room, which can effectively solve the problem of poor heat dissipation efficiency of the existing 110kV oil-immersed transformer in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an exhaust system for a 110kV oil-immersed transformer room, comprising a ventilation duct;

[0006] The ventilation duct wall is provided with a plurality of ventilation windows, and the ventilation duct opening is provided with a ventilation fan;

[0007] The ventilation duct is symmetrically provided with track slides at the upper and lower ends of the pipeline, and the guide surface of the track slides is arranged with multiple groups of alignment holes;

[0008] The outer side of the ventilation duct is sleeved with a plurality of sets of hoop positioning components slidably connected to the track slide bar, and the outer side of the ventilation duct is sleeved with a sealing gasket component slidably connected to the track slide bar and close to the ventilation fan.

[0009] As a further solution of the utility model: the hoop positioning assembly includes a hoop frame, the middle part of the hoop frame is symmetrically provided with a first positioning socket opposite to the calibration hole, and the upper and lower ends of the hoop frame are symmetrically provided with arm lever components.

[0010] As a further solution of the utility model: the mating ends of the first positioning socket and the alignment holes are screwed and adapted to be matched with the first fastening bolt.

[0011] As a further solution of the utility model: the arm lever component includes a telescopic screw sleeve, one end of the sleeve of the telescopic screw sleeve is screwed with a first telescopic screw fixedly connected to the ring hoop frame, and the other end of the sleeve of the telescopic screw sleeve is screwed with a second telescopic screw, the top end of the second telescopic screw is installed with a mounting plate seat, and the threads of the second telescopic screw and the first telescopic screw are arranged symmetrically in forward and reverse directions.

[0012] As a further solution of the utility model: the sealing gasket assembly includes a clamping frame, the middle part of the frame of the clamping frame is symmetrically provided with a second positioning hole opposite to the calibration hole, and a sealing gasket is arranged on one side of the frame of the clamping frame.

[0013] As a further solution of the present invention: the mating ends of the second positioning socket and the alignment hole are screwed and adapted to be fitted with the second fastening bolt.

[0014] As a further solution of the utility model: the ventilating opening of the ventilation fan is equipped with a ventilation mask.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] When the exhaust system of the utility model is installed and used, the ventilation duct is placed on the top of the transformer room, and the pipeline is extended through the transformer room to the outside, so that the ventilation fan is externally placed, and then the exhaust system is flexibly and conveniently installed and fixed on the top of the transformer room by utilizing the horizontal sliding alignment of the hoop positioning component and the front and rear telescopic adjustable arm support of the arm lever component, and the gap between the ventilation duct and the transformer room is sealed by utilizing the sealing pad component to complete the installation of the pipeline, and subsequently the combination of the ventilation duct and the ventilation fan is utilized to timely exhaust the hot air generated by ventilation and heat dissipation on the top of the transformer room to the outside, thereby improving the operating reliability of the transformer equipment and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the exhaust system for a 110kV oil-immersed transformer room according to the utility model;

[0018] Figure 2 This is a left view of the exhaust system of the utility model for a 110kV oil-immersed transformer room;

[0019] Figure 3 The utility model is used for the exhaust system of 110kV oil-immersed transformer room Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 This is a structural schematic diagram of a hoop positioning assembly in an exhaust system for a 110kV oil-immersed transformer room according to the utility model;

[0021] Figure 5 The utility model is a schematic structural diagram of a sealing gasket assembly in an exhaust system for a 110kV oil-immersed transformer room.

[0022] In the figure: 1, ventilation duct; 2, track slide; 3, hoop positioning assembly; 31, hoop frame; 32, first positioning hole; 33, first fastening bolt; 34, telescopic screw sleeve; 35, first telescopic screw; 36, second telescopic screw; 37, mounting plate seat; 4, ventilation window; 5, ventilation fan; 6, ventilation mask; 7, sealing gasket assembly; 71, tightening frame; 72, second positioning hole; 73, second fastening bolt; 74, sealing gasket; 8, alignment hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Please refer to Figure 1-5As shown, an exhaust system for a 110 kV oil-immersed transformer room includes a ventilation duct 1, wherein a track slide bar 2 is symmetrically arranged at the upper and lower ends of the pipeline of the ventilation duct 1, and a plurality of groups of alignment holes 8 are arranged on the guide surface of the track slide bar 2, and a plurality of groups of hoop positioning components 3 slidably connected to the track slide bar 2 are sleeved on the outer side of the pipeline of the ventilation duct 1, and the hoop positioning components 3 include a hoop frame 31, and a first positioning plug hole 32 opposite to the alignment hole 8 is symmetrically opened in the middle of the frame of the hoop frame 31, and the first The mating ends of the positioning socket 32 ​​and the alignment holes 8 are screwed and adapted with the first fastening bolt 33. Based on the sliding of the guide rail of the track slide 2, the hoop positioning assembly 3 is pushed to slide along the direction of the track slide 2, and the installation spacing between adjacent hoop positioning assemblies 3 is flexibly adjusted to flexibly adapt to the on-site environment. After the adjustment is completed, the matching first fastening bolt 33 is screwed into the mating ends of the first positioning socket 32 ​​and the alignment holes 8, so that the hoop positioning assembly 3 maintains a suitable orientation to perform hoop frame support work.

[0027] The upper and lower ends of the frame of the hoop frame 31 are symmetrically provided with arm lever components, and the arm lever components include a telescopic screw sleeve 34, one end of the sleeve of the telescopic screw sleeve 34 is screwed with a first telescopic screw 35 fixedly connected to the hoop frame 31, and the other end of the sleeve of the telescopic screw sleeve 34 is screwed with a second telescopic screw 36, a mounting plate seat 37 is installed on the top of the second telescopic screw 36, and the threads of the second telescopic screw 36 and the first telescopic screw 35 are symmetrically arranged in positive and reverse directions. By utilizing the thread adaptation of the telescopic screw sleeve 34 and the two groups of telescopic screws, the first telescopic screw 35 and the second telescopic screw 36 can be pushed to telescope in a symmetrical manner by rotating the telescopic screw sleeve 34, and the overall arm support rod length can be adjusted to better adapt to the on-site installation environment.

[0028] The outer side of the ventilation duct 1 is sleeved with a sealing gasket assembly 7 which is slidably connected with the track slider 2 and is close to the ventilation fan 5. The sealing gasket assembly 7 includes a clamping frame 71. The middle part of the frame of the clamping frame 71 is symmetrically provided with a second positioning hole 72 opposite to the calibration hole 8, and a sealing gasket 74 is provided on one side of the frame of the clamping frame 71. The mating ends of the second positioning hole 72 and the calibration hole 8 are screwed and adapted with the second fastening bolt 73. Based on the sliding of the guide rail of the track slider 2, the sealing gasket assembly 7 is pushed to slide along the direction of the track slider 2, so that the sealing gasket 74 is tightly pressed in the gap between the transformer chamber and the ventilation duct 1 to seal the gap. At the same time, the matching second fastening bolt 73 is screwed into the second positioning hole 72 and the calibration hole 8 to keep the sealing gasket 74 in a firmly pressed state, seal the gap port, and prevent overflow of external rainwater from entering the transformer chamber.

[0029] The pipe wall of the ventilation duct 1 is arranged with multiple groups of ventilation windows 4, and the pipe mouth of the ventilation duct 1 is installed with a ventilation fan 5, and the ventilation opening of the ventilation fan 5 is installed with a ventilation mask 6. By controlling the operation of the ventilation fan 5, an adsorption force is formed, and the ventilation combination of the ventilation duct 1 and the ventilation windows 4 is utilized to extract the mechanical hot air on the top of the transformer room, and the hot air is promptly extracted to the outside through the ventilation duct 1.

[0030] The working principle of the utility model is as follows: when the indoor hot air of a 110kV oil-immersed transformer is ventilated and cooled, an installation slot of the same size as the ventilation duct 1 is opened at the top of the transformer room according to the size of the ventilation duct 1 in advance, and then the ventilation duct 1 is assembled in the installation slot, and the ventilation fan 5 is placed outside, and then the guide rail sliding of the track slide bar 2 pushes the hoop positioning assembly 3 to slide along the direction of the track slide bar 2, and the installation spacing between adjacent hoop positioning assemblies 3 is flexibly adjusted to flexibly adapt to the on-site environment. After the adjustment is completed, the matching first fastening bolt 33 is screwed into the mating end of the first positioning socket 32 ​​and the calibration row hole 8, and the telescopic screw sleeve 34 is synchronously adapted to the thread of the two sets of telescopic screws by rotating the telescopic screw sleeve 34, and the first telescopic screw 35 and the second telescopic screw 36 are pushed to telescope symmetrically, so that the whole The length of the arm force support rod is adjusted to better adapt to the on-site installation environment. After the overall structure is installed, based on the sliding of the guide rail of the track slide bar 2, the sealing gasket assembly 7 is pushed to slide along the direction of the track slide bar 2, so that the sealing gasket 74 is tightly pressed in the gap between the transformer room and the ventilation duct 1, and the gap is sealed, and the matching second fastening bolt 73 is screwed into the second positioning socket 72 and the calibration hole 8, so that the sealing gasket 74 remains in a firmly pressed state to prevent overflow of external rainwater and the like from entering the transformer room. Later, when the hot air in the transformer room is ventilated and dissipated, the ventilation fan 5 is controlled to work to form an adsorption force, and the ventilation combination of the ventilation duct 1 and the ventilation window 4 is used to extract the mechanical hot air on the top of the transformer room, and the hot air is promptly extracted to the outside through the ventilation duct 1, thereby improving the operating reliability of the transformer equipment and reducing safety hazards.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. The exhaust system for 110kV oil-immersed transformer room is characterized by: comprising a ventilation duct (1); The ventilation duct (1) has a plurality of ventilation windows (4) arranged on the wall thereof, and a ventilation fan (5) is installed at the pipe opening of the ventilation duct (1); The ventilation duct (1) is symmetrically provided with track slides (2) at the upper and lower ends of the pipeline, and the guide surface of the track slides (2) is arranged with a plurality of groups of alignment holes (8); The ventilation duct (1) is sleeved on the outside of the pipe with a plurality of sets of hoop positioning components (3) which are slidably connected to the track slide bar (2), and the ventilation duct (1) is sleeved on the outside of the pipe with a sealing gasket component (7) which is slidably connected to the track slide bar (2) and is located near the ventilation fan (5).

2. The exhaust system for a 110kV oil-immersed transformer room according to claim 1, characterized in that: The hoop positioning assembly (3) comprises a hoop frame (31), a first positioning insertion hole (32) opposite to the alignment hole (8) is symmetrically provided in the middle of the frame of the hoop frame (31), and arm lever components are symmetrically provided at the upper and lower ends of the frame of the hoop frame (31).

3. The exhaust system for a 110kV oil-immersed transformer room according to claim 2, characterized in that: The mating ends of the first positioning insertion hole (32) and the alignment hole (8) are screwed and adapted to the first fastening bolt (33).

4. The exhaust system for a 110kV oil-immersed transformer room according to claim 2, characterized in that: The arm lever component comprises a telescopic screw sleeve (34), one end of the sleeve of the telescopic screw sleeve (34) is screwed with a first telescopic screw rod (35) fixedly connected to the hoop frame (31), and the other end of the sleeve of the telescopic screw sleeve (34) is screwed with a second telescopic screw rod (36), a mounting plate seat (37) is installed at the top end of the second telescopic screw rod (36), and the threads of the second telescopic screw rod (36) and the first telescopic screw rod (35) are arranged symmetrically in positive and negative directions.

5. The exhaust system for a 110kV oil-immersed transformer room according to claim 1, characterized in that: The sealing gasket assembly (7) comprises a tightening frame (71), a second positioning insertion hole (72) opposite to the alignment hole (8) is symmetrically provided in the middle of the frame of the tightening frame (71), and a sealing gasket (74) is provided on one side of the frame of the tightening frame (71).

6. The exhaust system for a 110 kV oil-immersed transformer room according to claim 5, characterized in that: The mating ends of the second positioning insertion hole (72) and the alignment hole (8) are screwed and adapted to the second fastening bolt (73).

7. The exhaust system for a 110kV oil-immersed transformer room according to claim 1, characterized in that: A ventilation mask (6) is installed at the ventilation opening of the ventilation fan (5).

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