Transformer oil conservator

Abstract

The utility model discloses a transformer oil conservator, which relates to the technical field of transformer protection equipment, and comprises a conservator body and conservator legs for supporting the conservator body, a breathing tube is arranged on the side surface of the conservator body, the breathing tube is a bent tube and is bent along the outer diameter of the conservator body, and one end of the breathing tube is connected to the top of the conservator body through a mounting flange. The other end of the breathing tube extends to the bottom of the side face of the conservator body and is connected with a moisture absorber, the moisture absorber is connected with the breathing tube through a sealing ring, the breathing tube is adjusted to the outside of the conservator from the inside of the conservator, and the breathing tube is installed at the highest point of the top of the conservator. And when the volume swelling amount of the transformer oil is maximum, the situation that the moisture absorber loses efficacy due to the fact that the transformer oil enters the moisture absorber through the breathing tube from the top of the oil conservator is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer protection equipment, in particular to a transformer oil storage cabinet. Background Art

[0002] The transformer oil conservator is commonly known as the oil pillow. It is a cylindrical container placed horizontally above the oil tank and connected to the transformer oil tank with a pipe. When the transformer oil expands with heat, the oil flows from the oil tank to the oil conservator; when the transformer oil contracts with cold, the oil flows from the oil conservator to the oil tank. The oil filling amount of the oil conservator is generally 10% of the total oil volume of the transformer.

[0003] The traditional transformer oil conservator is mainly composed of a cabinet body, a breathing tube, a desiccant and cabinet feet. The upper part of the breathing tube is connected to the oil conservator, and the desiccant is installed at the lower part. The moisture in the air is absorbed by the breathing tube and the desiccant, thereby reducing the moisture and oxidation of the transformer oil. The air above the oil surface of the oil conservator is connected to the external atmosphere through the breathing tube. A desiccant is placed in the breathing tube to reduce the moisture in the air from entering the oil conservator. A sedimentator is provided at the bottom of the oil conservator to precipitate the moisture and dirt that invade the oil conservator and remove them regularly. An oil level gauge is also installed at one end of the oil conservator to observe the height of the oil level. When the oil is insufficient due to leakage or other reasons, oil should be added in time to replenish it.

[0004] However, the breathing tube of the existing transformer oil storage cabinet is generally a straight tube, which extends from the bottom of the cabinet to a certain length. When the transformer oil inside the transformer expands significantly or bumps during transportation, the transformer oil will flow back into the breathing tube and the desiccant. After the oil enters the desiccant, the internal silica gel fails and loses its original function, affecting the acceptance and operation of the transformer. Utility Model Content

[0005] In order to overcome the defect in the prior art that the oil of the medium pressure device flows back into the breathing tube and the desiccant, thereby affecting the original functions, the utility model provides a transformer oil storage cabinet.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a transformer oil storage cabinet, comprising a cabinet body and cabinet feet for supporting the cabinet body, a breathing tube is arranged on the side of the cabinet body, the breathing tube is a curved tube and is bent along the outer diameter of the cabinet body, one end of the breathing tube is connected to the top of the cabinet body through a mounting flange, the other end of the breathing tube extends to the bottom of the side of the cabinet body and is connected to a desiccant, and the desiccant is connected to the breathing tube through a sealing ring.

[0007] As a further improvement of the utility model, a shock-absorbing pad is provided at the bottom of the cabinet foot.

[0008] As a further improvement of the utility model, a rib plate capable of fixing the breathing tube is provided on the side of the cabinet.

[0009] As a further improvement of the utility model, arc grooves are provided on the cabinet feet.

[0010] As a further improvement of the utility model, side wings are provided on both sides of the arc-shaped groove.

[0011] As a further improvement of the utility model, an oil level gauge is provided in the cabinet.

[0012] Compared with the prior art, the utility model has the beneficial effects: in this solution, a breathing tube is provided on the side of the cabinet, the breathing tube is a curved tube and is bent along the outer diameter of the cabinet, one end of the breathing tube is connected to the top of the cabinet through a mounting flange, the other end of the breathing tube extends to the bottom of the side of the cabinet and is connected to a desiccant, the desiccant is connected to the breathing tube through a sealing ring, the breathing tube is adjusted from the inside of the oil storage cabinet to the outside of the oil storage cabinet, the breathing tube is installed at the highest point on the top of the oil storage cabinet, even when the weather changes to the highest temperature in summer and the volume expansion of the transformer oil is the largest, it will not enter the desiccant from the top of the oil storage cabinet through the breathing tube, thereby causing the desiccant to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 This is a front view of a transformer oil storage cabinet of the utility model.

[0015] Figure 2 The utility model is a side view of a transformer oil storage cabinet.

[0016] In the figure: 1. cabinet body; 2. cabinet feet; 3. desiccant; 4. breathing tube; 5. mounting flange; 6. sealing ring; 7. shock-absorbing pad; 8. rib plate; 9. arc groove; 10. side wing. DETAILED DESCRIPTION

[0017] In order to make the technical solution and beneficial effects of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0018] Reference Figure 1 and Figure 2 The utility model embodiment discloses a transformer oil storage cabinet, including a cabinet body 1 and a cabinet foot 2 for supporting the cabinet body 1, a breathing tube 4 is provided on the side of the cabinet body 1, the breathing tube 4 is a curved tube and is bent along the outer diameter of the cabinet body 1, one end of the breathing tube 4 is connected to the top of the cabinet body 1 through a mounting flange 5, the other end of the breathing tube 4 extends to the bottom of the side of the cabinet body 1 and is connected to a desiccant 3, and the desiccant 3 is connected to the breathing tube 4 through a sealing ring 6.

[0019] The side of the cabinet 1 is provided with a rib plate 8 which can fix the breathing tube 4 , thereby improving the stability of the breathing tube 4 .

[0020] A breathing tube 4 is provided on the side of the cabinet 1. The breathing tube 4 is a curved tube and is bent along the outer diameter of the cabinet 1. The breathing tube 4 is adjusted from the inside of the oil storage cabinet to the outside of the oil storage cabinet. The breathing tube is installed at the highest point on the top of the oil storage cabinet. One end of the breathing tube 4 is connected to the top of the cabinet 1 through a mounting flange 5. The other end of the breathing tube 4 extends to the bottom of the side of the cabinet 1 and is connected to a desiccant 3. The desiccant 3 is connected to the breathing tube 4 through a sealing ring 6. An oil level gauge is provided in the cabinet 1. It is used to observe the oil level position of the transformer oil storage cabinet. The oil filling amount of the oil storage cabinet is generally only 10% of the total oil volume of the transformer. Even when the temperature is the highest in summer with the weather change and the volume expansion of the transformer oil is the largest, it will not enter the desiccant 3 from the top of the oil storage cabinet through the breathing tube 4, thereby causing the desiccant 3 to fail. The breathing tube 4 and the desiccant 3 can absorb moisture in the air for a long time, reduce the moisture and oxidation of the transformer oil, and ensure the operation of the transformer.

[0021] A shock-absorbing pad 7 is provided at the bottom of the cabinet foot 2 to reduce noise, vibration and increase the life of the oil storage cabinet. An arc groove 9 is provided on the cabinet foot 2, and the oil storage cabinet is placed on the arc groove 9 on the cabinet foot 2. Side wings 10 are provided on both sides of the arc groove 9 to improve the stability of the installation.

[0022] It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A transformer oil conservator, characterized in that: The cabinet comprises a cabinet body (1) and a cabinet foot (2) for supporting the cabinet body (1). A breathing tube (4) is arranged on the side of the cabinet body (1). The breathing tube (4) is a curved tube and is bent along the outer diameter of the cabinet body (1). One end of the breathing tube (4) is connected to the top of the cabinet body (1) through a mounting flange (5). The other end of the breathing tube (4) extends to the bottom of the side of the cabinet body (1) and is connected to a dehumidifier (3). The dehumidifier (3) is connected to the breathing tube (4) through a sealing ring (6).

2. A transformer oil conservator according to claim 1, characterized in that: A shock-absorbing pad (7) is provided at the bottom of the cabinet foot (2).

3. A transformer oil conservator according to claim 2, characterized in that: A rib plate (8) capable of fixing the breathing tube (4) is provided on the side of the cabinet (1).

4. A transformer oil conservator according to claim 3, characterized in that: The cabinet foot (2) is provided with an arc groove (9).

5. The transformer oil conservator according to claim 4, characterized in that: Side wings (10) are arranged on both sides of the arc-shaped groove (9).

6. A transformer oil conservator according to claim 5, characterized in that: An oil level gauge is arranged inside the cabinet (1).

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