CN203596260U - Transformer vibration isolation and noise reduction device - Google Patents

Abstract

The utility model discloses a vibration isolation and noise reduction device for a transformer, which comprises a steel rail, a vibration damping spring, a damping layer and a transformer base; the base and the top cover of the steel rail are formed with matching grooves, and the A damping spring is embedded in the groove; a damping layer is laid on the top cover of the rail, and a transformer base is fixedly installed above the damping layer. The beneficial effects are: due to the installation of springs and rubber pads, double vibration isolation and sound insulation are realized, high and low frequency vibrations and solid sound transmission are greatly reduced, echo resonance between substation floors is avoided, and the mechanical capacity of the transformer is reduced. Vibration also prolongs the service life of the equipment, and at the same time makes the noise reduction effect of the underground substation meet the environmental requirements.

Description

Transformer vibration isolation and noise reduction device

technical field

The utility model relates to a noise reduction device, in particular to a vibration isolation and noise reduction device suitable for transformers.

Background technique

The traditional transformer construction process is to place the base of the transformer directly on the floor or concrete foundation without any vibration isolation and noise reduction measures. During the operation of the transformer, the noise produces echo resonance and solid sound transmission between the floors of the underground substation, resulting in huge noise, and the noise pollution seriously affects the lives of the surrounding residents and the normal work of the substation on duty. the

Contents of the invention

The technical problem to be solved by the utility model is to provide a transformer vibration isolation and noise reduction device with simple structure and convenient installation.

The technical scheme adopted by the utility model is: a transformer vibration isolation and noise reduction device, including a steel rail, a vibration damping spring, a shock absorption layer and a transformer base; A groove, in which a vibration-damping spring is inlaid; a shock-absorbing layer is laid on the top cover of the rail, and a transformer base is fixedly installed above the shock-absorbing layer.

There are at least two steel rails, and the steel rails are parallel or perpendicular to the transformer base.

When the rail is parallel to the transformer base, five matching equidistant grooves are formed on the base and top cover of the rail 1, and the damping spring is fixed to the lower part of the rail by connecting bolts, the material is stainless steel, and the diameter is 200mm .

When the rail is perpendicular to the transformer base, three pairs of grooves are matched and evenly distributed on the base and top cover of the rail, and a shock-absorbing layer is laid at the center above each pair of top covers.

The shock-absorbing layer is a rubber pad, and the thickness of the rubber pad is 20mm.

The distance between the bottom of the transformer and the ground is greater than or equal to 150 mm.

The beneficial effects of the utility model are: due to the installation of springs and rubber pads, double vibration and sound insulation are realized, high and low frequency vibrations and solid sound transmission are greatly reduced, and the phenomenon of echo resonance between substation floors is avoided. The mechanical vibration of the transformer is reduced, and the service life of the equipment is also prolonged. At the same time, the noise reduction effect of the underground substation meets the environmental requirements.

Description of drawings

Fig. 1 is the schematic plan view when the steel rail of the utility model is parallel to the transformer base;

Fig. 2 is a schematic plan view of the utility model when the steel rail is perpendicular to the transformer base.

In the picture:

1. Rail 2. Damping spring 3. Damping layer 4. Transformer base.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figures 1 and 2, the transformer vibration isolation and noise reduction device of the present utility model is installed in the power distribution room, including a steel rail 1, a vibration damping spring 2, a shock absorption layer 3 and a transformer base 4; the steel rail 1 is at least There are two, the operator sets the foundation embedded parts corresponding to the rail 1 on the ground of the substation to fix the basic part of the shock absorber; the base and the top cover of the rail 1 are formed with matching grooves , the anti-shear damping damping spring 2 is inlaid in the groove. It is worth pointing out that the elastic strength coefficient k (ie, the Gini coefficient) of the damping spring parts must be completely consistent to ensure that the substation transformer and the noise reduction base The overall force of the seat is balanced and uniform; the self-resonant frequency of the shock-absorbing spring part should be kept different from the frequency generated when the transformer is up and running, so as to ensure that the transformer will not overlap with the frequency of the shock-absorbing spring part itself to cause resonance, resulting in Noisier; damping spring 2 is fixed on the lower part of rail 1 through connecting bolts, the material is stainless steel, the diameter is 200mm, the number of damping springs should be set according to the transformer; the top cover of rail 1 is laid with damping Layer 3, the shock-absorbing layer 3 is a rubber pad, the thickness of the rubber pad is 20mm, and the rubber pad plays a buffering and shock-absorbing role while making the transformer bracket above the silicone rubber layer fit more closely and firmly with the noise reduction base; A transformer base 4 is fixedly installed above the shock-absorbing layer 3, and the mechanical vibration can be effectively reduced when the distance between the bottom surface of the transformer and the ground is greater than or equal to 150 mm.

The steel rail 1 is parallel or perpendicular to the transformer base 4; when the steel rail 1 is parallel to the transformer base 4, five matching equidistant grooves are formed on the base and top cover of the steel rail 1. When the rail 1 is perpendicular to the transformer base 4, three pairs of grooves are matched and evenly distributed on the base and top cover of the rail 1, and a damping layer 3 is laid at the center above each pair of top covers.

Because the utility model is equipped with springs and rubber pads, it realizes double vibration isolation and sound isolation, greatly reduces high and low frequency vibration and solid sound transmission, avoids the phenomenon of echo resonance between substation floors, and reduces the mechanical vibration of the transformer , realize the noise reduction function of underground substations, and at the same time prolong the service life of the equipment to meet the needs of substation construction and operation and maintenance work.

Claims (6)

1. A transformer vibration isolation and noise reduction device, characterized in that it includes a steel rail (1), a vibration damping spring (2), a shock absorption layer (3) and a transformer base (4); the steel rail (1) Matching grooves are formed on the base and the top cover, and damping springs (2) are embedded in the grooves; a shock-absorbing layer (3) is laid on the top cover of the rail (1). A transformer base (4) is fixedly installed above the shock absorbing layer (3). 2. The transformer vibration isolation and noise reduction device according to claim 1, characterized in that there are at least two steel rails (1), and the steel rails (1) are parallel or perpendicular to the transformer base (4). 3. The transformer vibration isolation and noise reduction device according to claim 2, characterized in that, when the rail (1) is parallel to the transformer base (4), there are 5 fittings formed on the base and top cover of the rail 1 Equidistant grooves are provided, and the damping spring (2) is fixed to the lower part of the rail (1) through connecting bolts, the material is stainless steel, and the diameter is 200mm. 4. The transformer vibration isolation and noise reduction device according to claim 2, characterized in that, when the rail (1) is perpendicular to the transformer base (4), there is a corresponding groove formed on the base and top cover of the rail (1). Three pairs of grooves are matched and evenly distributed, and a shock-absorbing layer (3) is laid at the center above each pair of top covers. 5. The transformer vibration isolation and noise reduction device according to claim 1, characterized in that the shock absorbing layer (3) is a rubber pad, and the thickness of the rubber pad is 20mm. 6. The transformer vibration isolation and noise reduction device according to claim 1, wherein the distance between the bottom surface of the transformer and the ground is greater than or equal to 150 mm.

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