Device body fixing structure for neutral point reactor

Abstract

The utility model belongs to the field of transformer equipment, and discloses a device body fixing structure for a neutral point reactor, which comprises a steel screw, a positioning ring, a pressing plate and a foot pad, the top of the steel screw is fixed with an oil tank cover, the bottom of the steel screw is fixed in the positioning ring, and the positioning ring is fixed at the bottom of an oil tank. The pressing plate and the foot pad tightly press the neutral point reactor body into a whole under the action of the tensioning force of the steel screw rod, and are fixed in a closed structure formed by the steel screw rod, the oil tank cover and the bottom of the oil tank, so that the neutral point reactor body is prevented from shifting in the transverse direction, the longitudinal direction and the vertical direction in the oil tank; and the neutral point reactor can be prevented from being damaged due to displacement in transportation and earthquake processes.

Description

Technical Field

[0001] The utility model belongs to the field of transformer equipment, and in particular relates to a fixing structure for a neutral point reactor body. Background Art

[0002] The neutral point reactor is connected between the neutral point of the three-phase Y-connected high-voltage shunt reactor and the ground. It is used to extinguish arcs when the single-phase transmission line is disconnected, eliminate the latent power arc generated when the system has a single-phase grounding fault, limit the grounding current when the system fails, and ensure the system's single-phase automatic reclosing.

[0003] When the impact force generated by transportation and earthquake acts on the reactor, static damage, dynamic damage and other forms of damage will occur to the internal body. At the same time, the neutral point reactor usually has a small internal space and is not convenient for on-site inspection. Therefore, improving the reliability of the neutral point reactor body fixation is particularly important to improve its product reliability. Summary of the invention

[0004] The utility model aims to provide a fixing structure for a neutral point reactor body, so as to solve the problem in the prior art that the neutral point reactor body is damaged by impact force during transportation and earthquake.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a fixing structure for a neutral point reactor body, comprising a steel screw, the top of the steel screw is fixed to an oil tank cover, the bottom of the steel screw is fixed in a positioning ring, the positioning ring is fixed to the bottom of the oil tank, and the steel screw, the oil tank cover and the bottom of the oil tank jointly fix the neutral point reactor body.

[0007] A further improvement of the utility model is that a nut is arranged at the bottom of the steel screw.

[0008] A further improvement of the utility model is that glue dispensing is performed after the nut and the steel screw are locked.

[0009] A further improvement of the utility model is that the upper parts of the two steel screw rods in the horizontal position are both provided with pressing plates, and the lower parts are both provided with feet.

[0010] A further improvement of the utility model is that the pad foot is located at the upper end of the nut.

[0011] A further improvement of the utility model is that a pad is fixed on the bottom of the oil tank, and the pad is perpendicular to the pressing plate and the pad foot.

[0012] A further improvement of the utility model is that the oil tank cover is fixed to the steel screw rod through a threaded seat.

[0013] A further improvement of the utility model is that a polyurethane rubber sleeve is arranged inside the positioning ring.

[0014] A further improvement of the utility model is that the pressing plate and the pad foot are fixed on the steel screw rod through nuts.

[0015] A further improvement of the utility model is that the positioning ring is welded to the bottom of the oil tank.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model fixes the top of the steel screw rod to the oil tank cover, fixes the bottom of the steel screw rod in a positioning ring, and fixes the positioning ring to the bottom of the oil tank. The neutral point reactor body is firmly fixed together through the steel screw rod, the bottom of the oil tank and the oil tank cover, thereby ensuring that the neutral point reactor body will not be displaced in the horizontal, longitudinal and vertical directions in the oil tank, and can prevent the neutral point reactor from being displaced and damaged during transportation and earthquakes.

[0018] Furthermore, gluing is performed after the nut and the steel screw are locked, so that the nut and the steel screw can be fixed more firmly.

[0019] Furthermore, a pad is fixed at the bottom of the oil tank, and the pad is perpendicular to the pressure plate and the pad foot, and can be used to support the neutral point reactor body to resist gravity.

[0020] Furthermore, a polyurethane rubber sleeve is arranged inside the positioning ring to offset processing errors and reduce shock.

[0021] Furthermore, the positioning ring is welded to the bottom of the oil tank, so that a strong positioning measure can be taken for the steel screw fixing the neutral point reactor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall fixing of the body of the utility model;

[0023] Figure 2 This is a schematic diagram of the bottom positioning of the oil tank of the body steel screw of the utility model;

[0024] Figure 3 It is a top view of the overall fixing structure of the body of the utility model.

[0025] Among them, 1. Neutral point reactor body; 2. Pressure plate; 3. Foot pad; 4. Steel screw; 5. Oil tank cover; 6. Positioning ring; 7. Nut; 8. Rubber sleeve; 9. Gasket. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to common technical knowledge and conventional means in the field, which should all be included in the protection scope of the present invention.

[0027] See also Figure 1-3 The fixing structure for the neutral point reactor body comprises a neutral point reactor body 1, a pressure plate 2, a foot 3, a steel screw 4, a fuel tank cover 5, a positioning ring 6, a nut 7, a polyurethane rubber sleeve 8 and a pad 9. The steel screw 4 is arranged in the fuel tank, and 4 of them are arranged, and are located on the same straight line in the transverse and longitudinal directions. The tops of the steel screws 4 are fixed to the fuel tank cover 5 through threaded seats. Nuts 7 are arranged at the bottom of the steel screws 4. After the nuts 7 and the steel screws 4 are locked, glue is applied to strengthen the connection between the nuts 7 and the steel screws 4. A positioning ring 6 is welded to the bottom of the fuel tank, and a polyurethane rubber sleeve 8 is arranged in the positioning ring 6. The steel screw rod 4 locked with the thread 7 is fixed in the polyurethane rubber sleeve 8. A pressure plate 2 is arranged on the upper part of the two horizontal steel screw rods 4, and a pad foot 3 is arranged on the lower part. Two pads 9 are respectively fixed on the bottom of the oil tank and are perpendicular to the pressure plate 2 and the pad foot 3, and can be used to support the neutral point inductor body 1. The pad foot 3 is located at the upper end of the nut 7. The pressure plate 2 and the pad foot 3 are fixed on the steel screw rod 4 through the nut 7. Under the action of the tensioning force of the steel screw rod 4, the pressure plate 2 and the pad foot 3 press the neutral point inductor body 1 into a whole, and are fixed in the closed structure composed of the steel screw rod 4, the oil tank cover 5 and the bottom of the oil tank.

[0028] Before the neutral point reactor body 1 is placed in the oil tank, the nut 7 is locked at the bottom of the steel screw 4, and glue is applied after locking. A positioning ring 6 is welded to the bottom of the oil tank, and a polyurethane rubber sleeve 8 is arranged in the positioning ring 6. When the neutral point reactor body 1 is placed in the oil tank, it is ensured that the steel screw 4 locked with the thread 7 slowly falls into the polyurethane rubber sleeve 8, and is fixed to the oil tank cover 5 through the top of the steel screw 4. The bottom of the steel screw 4 is fixed in the polyurethane rubber sleeve 8, and the steel screw 4 is limited, so that the neutral point reactor body 1 is firmly fixed together through the steel screw 4, the bottom of the oil tank and the oil tank cover 5. The pad 9 is located under the neutral point reactor body 1, which can support the body and resist gravity. The neutral point reactor body 1 will not be displaced in the horizontal, longitudinal and vertical directions, and can prevent the neutral point reactor body 1 from displacement during transportation and earthquakes, and can withstand impact force.

[0029] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field can still modify or replace the specific implementation methods of the present invention. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection of the claims of the present invention to be approved.

Claims

1. A fixing structure for a neutral point reactor body, characterized in that: It comprises a steel screw rod (4), the top of the steel screw rod (4) is fixed to the oil tank cover (5), the bottom of the steel screw rod (4) is fixed in a positioning ring (6), the positioning ring (6) is fixed to the bottom of the oil tank, and the steel screw rod (4), the oil tank cover (5) and the bottom of the oil tank jointly fix the neutral point reactor body (1).

2. A neutral point reactor body fixing structure according to claim 1, characterized in that: A nut (7) is arranged at the bottom of the steel screw rod (4).

3. A neutral point reactor body fixing structure according to claim 2, characterized in that: After the nut (7) and the steel screw (4) are locked, glue is dispensed.

4. The neutral point reactor body fixing structure according to claim 1, characterized in that: The upper parts of the two horizontal steel screw rods (4) are both provided with a pressing plate (2), and the lower parts are both provided with a pad foot (3).

5. The neutral point reactor body fixing structure according to claim 1, characterized in that: The foot (3) is located at the upper end of the nut (7).

6. The neutral point reactor body fixing structure according to claim 1, characterized in that: A backing plate (9) is fixed at the bottom of the oil tank, and the backing plate (9) is perpendicular to the pressing plate (2) and the pad foot (3).

7. The neutral point reactor body fixing structure according to claim 1, characterized in that: The oil tank cover (5) is fixed to the steel screw rod (4) via a threaded seat.

8. The neutral point reactor body fixing structure according to claim 1, characterized in that: A polyurethane rubber sleeve (8) is arranged inside the positioning ring (6).

9. A neutral point reactor body fixing structure according to claim 8, characterized in that: The pressing plate (2) and the pad foot (3) are fixed on the steel screw rod (4) through a nut (7).

10. The neutral point reactor body fixing structure according to claim 1, characterized in that: The positioning ring (6) is welded to the bottom of the oil tank.

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