Improved connecting structure for ascending flanged base and oil tank of reactor or transformer
By setting a communication pipe and a pull rod on the side of the fuel tank of the reactor or transformer, and combining the support, the problem of the bolts bearing too much shear force at high voltage in the connecting structure of the lift seat and the oil tank is solved, and the balance and manufacturing of the lift seat are achieved The reduction in costs meets the needs of use under different harsh conditions.
Patent Information
- Application Number
- CN202421194423.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The connecting structure of the existing reactor or transformer to the oil tank is likely to cause the bolt to bear too much shear force under high voltage, resulting in the bolt damage and oil leakage.
Adopt an improved connection structure. By setting a communication pipe and a tie rod on the side of the fuel tank, the tie rod is fixed on the lifting seat, and the tension is applied to balance the lifting seat. Combined with the support, the pressure is equalized, and the center of gravity is avoided and the bolt damage is reduced, and the manufacturing is reduced. cost.
It effectively protects the bolts, avoids the shift of the center of gravity of the raised seat, reduces manufacturing costs, and meets the needs of use under different conditions.
Smart Images
Figure CN222319922U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of reactors and transformers, and in particular to an improved connection structure between a raised seat of a reactor or a transformer and an oil tank. Background Art
[0002] At present, the installation form of the riser for the indirect outlet reactor or transformer bushing outlet is generally to weld a flange with screw holes on the oil tank wall, weld a flange with light holes on the riser, and fix the riser to the tank wall with bolts. When the voltage is high, the total weight of the bushing, the riser body, the mutual inductor, insulation, and oil therein is very large, the center of gravity of the riser shifts, resulting in a tendency to tilt, and the connecting bolts between the riser and the tank flange are subject to a large shear force. In particular, the vibration of the reactor is a long-term periodic dynamic load, which makes these bolts more severely sheared. The actual running product is prone to bolt damage and oil leakage at the connection. Utility Model Content
[0003] The purpose of the present application is to provide an improved connection structure between a raised seat of a reactor or transformer and an oil tank, so as to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above objectives, the present application provides an improved connection structure between a reactor or transformer's raised base and an oil tank, which adopts the following technical solution:
[0005] An improved connection structure between a raised seat and an oil tank of a reactor or transformer, comprising an oil tank and a raised seat, wherein a connecting pipe is integrally formed at a position where the side of the oil tank is connected to the raised seat, a tank body flange is welded and fixed on the end surface of the connecting pipe close to the raised seat, and a seat body flange is fixed on the position of the raised seat corresponding to the oil tank flange;
[0006] A pull rod is fixed on one side of the top of the oil tank close to the lifting seat, and one side of the pull rod is fixed on the lifting seat through a stud.
[0007] By adopting the above technical solution, a pulling force can be applied to the side of the lifting seat by providing a pull rod. The pulling force can balance the lifting seat, so that a good balance can be maintained between the seat flange and the box flange, and the center of gravity of the lifting seat can be avoided from shifting, thereby effectively protecting the bolts between the box flange and the seat flange.
[0008] Preferably, a support member is provided on the side wall of the oil tank around the connecting pipe, the support member is fixed on the connecting pipe, one side of the support member abuts against the side wall of the oil tank, and one side of the support member abuts against the tank flange.
[0009] By adopting the above technical solution, a support member is provided, and the support member is used to support between the box body and the box body flange. The pressure of the lifting seat on the connecting pipe will be evenly distributed to the support member, so that the thickness of the connecting pipe does not need to be thickened during the production of the oil tank, which greatly reduces the manufacturing cost.
[0010] Preferably, the cross-section of the connecting tube is square, two screw holes are provided on each side of the connecting tube, the positions corresponding to the screw holes on the support member are fixed on the screw rod, the support member is fixed to the connecting tube by a nut, and a sealing gasket is installed at the connection.
[0011] In order to reduce the weight of the tie rod without reducing the strength of the tie rod, the cross section of the tie rod is L-shaped.
[0012] A sealing ring is installed between the box body flange and the seat body flange.
[0013] In summary, the present application includes at least one of the following beneficial technical effects:
[0014] 1. The improved connection structure between the lifting seat of the reactor or transformer and the oil tank can reduce the overall height of the reactor or transformer by arranging the lifting seat on the side of the oil tank, which can meet the use of different harsh conditions;
[0015] 2. By providing a pull rod, a pulling force can be applied to the side of the lifting seat, and the pulling force can balance the lifting seat, so that the seat flange and the box flange can maintain a good balance, avoiding the center of gravity of the lifting seat from shifting, thereby effectively protecting the bolts between the box flange and the seat flange;
[0016] 3. By providing a support member, which is used to support between the box body and the box body flange, the pressure of the lifting seat on the connecting pipe will be evenly distributed to the support member, so that the thickness of the connecting pipe does not need to be thickened during the production of the oil tank, which greatly reduces the manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the front cross-sectional structure of an embodiment of the present application.
[0018] Figure 2 yes Figure 1 Enlarged view of part A in the middle.
[0019] Figure 3 It is a side view structural schematic diagram of an embodiment of the present application.
[0020] Figure 4 It is a schematic diagram of the top structure of an embodiment of the present application.
[0021] Explanation of the reference numerals: 1. oil tank; 2. lifting seat; 21. seat body flange; 3. connecting pipe; 31. box body flange; 4. pull rod; 5. support member; 6. nut. DETAILED DESCRIPTION
[0022] The following is combined with Figure 1-4 This application is described in further detail.
[0023] The embodiment of the present application discloses an improved connection structure between a raised seat 2 of a reactor or a transformer and an oil tank 1, referring to Figure 1-4 , including an oil tank 1 and an elevated seat 2, a connecting pipe 3 is integrally formed at the position where the side of the oil tank 1 is connected to the elevated seat 2, a box flange 31 is welded and fixed to the connecting pipe 3 near the end surface of the elevated seat 2, a seat flange 21 is fixed to the position of the elevated seat 2 corresponding to the flange of the oil tank 1, the box flange 31 and the seat flange 21 are connected by bolts, and a sealing ring is installed between the box flange 31 and the seat flange 21, a pull rod 4 is fixed to the top of the oil tank 1 near the side of the elevated seat 2, and one side of the pull rod 4 is fixed to the elevated seat 2 by a stud, by providing the pull rod 4, a pulling force can be applied to the side of the elevated seat 2, the pulling force can balance the elevated seat 2, so that the seat flange 21 and the box flange 31 can maintain a good balance, the center of gravity of the elevated seat 2 can be avoided from shifting, thereby effectively protecting the bolts between the box flange 31 and the seat flange 21, in order to reduce the weight of the pull rod 4, but not reduce the strength of the pull rod 4, the cross-section of the pull rod 4 is L-shaped.
[0024] Reference Figure 1-3 A support member 5 is provided on the side wall of the oil tank 1 around the connecting pipe 3. The support member 5 is fixed on the connecting pipe 3. One side of the support member 5 abuts on the side wall of the oil tank 1. One side of the support member 5 abuts on the box flange 31. The cross section of the connecting pipe 3 is square. Two screw holes are provided on each side of the connecting pipe 3. The positions corresponding to the screw holes on the support member 5 are fixed to the screw rods. The support member 5 is fixed to the connecting pipe 3 by nuts 6, and a sealing gasket is installed at the connection.
[0025] By providing a support member 5 and utilizing the support member 5 to rest between the box body and the box body flange 31, the pressure of the lifting seat 2 on the connecting pipe 3 will be evenly distributed to the support member 5, so that when the oil tank 1 is produced and manufactured, the thickness of the connecting pipe 3 does not need to be thickened, and only the support member 5 needs to be manufactured separately. The manufacturing cost of the support member 5 is relatively low, thereby greatly reducing the manufacturing cost.
[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An improved connection structure between a reactor or transformer riser (2) and an oil tank (1), comprising an oil tank (1) and a riser (2), characterized in that: A connecting pipe (3) is integrally formed at the position where the side of the oil tank (1) is connected to the elevated seat (2); a box body flange (31) is welded and fixed to the end surface of the connecting pipe (3) close to the elevated seat (2); and a seat body flange (21) is fixed to the position of the elevated seat (2) corresponding to the flange of the oil tank (1). A pull rod (4) is fixed to one side of the top of the oil tank (1) close to the lifting seat (2), and one side of the pull rod (4) is fixed to the lifting seat (2) via a stud.
2. The improved connection structure between the reactor or transformer riser (2) and the oil tank (1) according to claim 1, characterized in that: A support member (5) is provided on the side wall of the oil tank (1) and is located on the peripheral side of the connecting pipe (3). The support member (5) is fixed on the connecting pipe (3), one side of the support member (5) abuts against the side wall of the oil tank (1), and one side of the support member (5) abuts against the box body flange (31).
3. The improved connection structure between the reactor or transformer's raised base (2) and the oil tank (1) according to claim 2, characterized in that: The cross section of the connecting pipe (3) is square. Two screw holes are provided on each side of the connecting pipe (3). The positions corresponding to the screw holes on the supporting member (5) are fixed on the screw rod. The supporting member (5) is fixed on the connecting pipe (3) by means of a nut (6), and a sealing gasket is installed at the connection.
4. The improved connection structure between the reactor or transformer's raised base (2) and the oil tank (1) according to claim 1, characterized in that: The cross section of the pull rod (4) is L-shaped.
5. The improved connection structure between the reactor or transformer's raised base (2) and the oil tank (1) according to claim 1, characterized in that: A sealing ring is installed between the box body flange (31) and the seat body flange (21).