Fully-closed natural ester insulating oil storage structure

Abstract

The utility model belongs to the technical field of totally-closed natural ester insulating oil storage, and particularly relates to a totally-closed natural ester insulating oil storage structure which comprises an oil storage tank, an opening is formed in the upper end of the oil storage tank and is in threaded connection with a sealing cover, and a sealing assembly is arranged between the sealing cover and the oil storage tank. The sealing assembly comprises a sealing protruding block which is integrally annular, the sealing protruding block is fixedly arranged at the lower end of the sealing cover, the oil storage tank is provided with a sealing groove matched with the sealing protruding block, the inner ring and the outer ring of the sealing protruding block are each provided with a sealing ring, and the sealing protruding block and the sealing groove are directly provided with a liquid sealing component. According to the utility model, the opening is effectively sealed, and the opening is further sealed through the liquid sealing component, so that the natural ester insulating oil stored in the oil storage tank can be effectively ensured to be in a dry and sealed storage state.

Description

Technical Field

[0001] The utility model belongs to the technical field of the storage of fully enclosed natural ester insulating oil, and particularly relates to an oil storage structure for fully enclosed natural ester insulating oil. Background Art

[0002] Natural ester insulating oil, also known as vegetable insulating oil, is an insulating liquid extracted from the seeds of natural oil plants or other biological materials and used in transformers or similar electrical equipment. Natural ester insulating oil has the advantages of safety, environmental protection, high flash point, easy degradation, good moisture resistance, etc. As an insulating and heat dissipating medium, it is widely used in the power field;

[0003] Natural ester insulating oil needs to be stored in a dry, ventilated place away from fire sources and heat sources during daily storage, cannot be stored mixed with oxidants, acids and other dangerous substances, and needs to be effectively sealed for storage. Therefore, we propose an oil storage structure for fully enclosed natural ester insulating oil. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an oil storage structure for fully enclosed natural ester insulating oil. The utility model effectively seals the opening, and at the same time further seals the opening through a liquid sealing member, so as to effectively ensure that the natural ester insulating oil stored in the oil storage tank is in a dry and sealed storage state.

[0005] To achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0006] An oil storage structure for fully enclosed natural ester insulating oil, comprising an oil storage tank, an opening is provided at the upper end of the oil storage tank, the opening is threadedly connected with a sealing cover, and a sealing assembly is provided between the sealing cover and the oil storage tank;

[0007] The sealing assembly includes a sealing convex block integrally in a ring shape, the sealing convex block is fixedly arranged at the lower end of the sealing cover, the oil storage tank is provided with a sealing groove matching with the sealing convex block, sealing rings are arranged on both the inner circle and the outer circle of the sealing convex block, and a liquid sealing member is further arranged between the sealing convex block and the sealing groove.

[0008] The liquid sealing member includes a sliding plate, a plurality of springs and a plurality of support rods. A sealing cavity is arranged inside the sealing convex block, the sliding plate is hermetically slidably arranged up and down in the sealing cavity, a plurality of the springs are uniformly distributed between the lower end of the sliding plate and the sealing cavity, one end of a plurality of the support rods is uniformly distributed at the lower end of the sliding plate, the other ends of a plurality of the support rods all hermetically penetrate through the sealing cavity downward, liquid outlet holes are arranged at the lower ends of half of a plurality of the support rods, liquid inlet holes are arranged at the lower ends of the other half of the support rods, and the liquid outlet holes and the liquid inlet holes are both communicated with the sealing cavity above the sliding plate.

[0009] An inlet check valve is provided in the liquid inlet hole, and an outlet check valve is provided in the liquid outlet hole.

[0010] The cover is provided with an annular gasket.

[0011] A rubber gasket is provided on the circumferential side of the cover.

[0012] By effectively sealing the opening of the present utility model and further sealing the opening through the liquid sealing member, it can effectively ensure that the natural ester insulating oil stored in the storage tank is in a dry and sealed storage state. Description of the Drawings

[0013] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings.

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the fully enclosed natural ester insulating oil storage structure of the present utility model;

[0015] Figure 2 It is a schematic partial structural diagram of an embodiment of the fully enclosed natural ester insulating oil storage structure of the present utility model;

[0016] Figure 3 It is a schematic cross-sectional structural diagram of the cover of an embodiment of the fully enclosed natural ester insulating oil storage structure of the present utility model;

[0017] Figure 4 For Figure 3 The enlarged schematic diagram at A in

[0018] The main element symbols are explained as follows:

[0019] Storage tank 1, opening 11, cover 12, sealing bump 2, sealing groove 21, slide plate 3, spring 31, support rod 32, sealing cavity 33, liquid outlet hole 34, liquid inlet hole 35. Detailed Embodiments

[0020] In order to enable those skilled in the art to better understand the present utility model, the technical solutions of the present utility model will be further described below with reference to the drawings and embodiments.

[0021] As Figures 1-4 shown, the fully enclosed natural ester insulating oil storage structure of the present utility model includes a storage tank 1, an opening 11 is provided at the upper end of the storage tank 1, the opening 11 is threadedly connected with a cover 12, and a sealing assembly is provided between the cover 12 and the storage tank 1;

[0022] The sealing assembly includes a sealing bump 2 which is integrally annular. The sealing bump 2 is fixedly arranged at the lower end of the cover 12. The oil storage tank 1 is provided with a sealing groove 21 which matches the sealing bump 2. Sealing rings are arranged on both the inner and outer circles of the sealing bump 2. A liquid sealing member is also provided between the sealing bump 2 and the sealing groove 21.

[0023] When storing natural ester insulating oil, first clamp the natural ester insulating oil into the oil storage tank 1 through the opening 11, and then rotate the cover 12 into the opening 11. At this time, the sealing bump 2 will gradually enter the sealing groove 21. When the sealing bump 2 completely enters the sealing groove 21, the sealing rings on the inner and outer circles of the sealing bump 2 will contact the two side walls of the sealing groove 21, and the deformation of the sealing rings will play a sealing role. Finally, the liquid sealing member will provide a better sealing effect for the entire opening 11.

[0024] The utility model effectively seals the opening, and at the same time further seals the opening through the liquid sealing member, so as to effectively ensure that the natural ester insulating oil stored in the oil storage tank is in a dry and sealed storage state.

[0025] The liquid sealing member includes a sliding plate 3, a number of springs 31 and a number of support rods 32. A sealing cavity 33 is arranged inside the sealing bump 2. The sliding plate 3 is hermetically and slidably arranged up and down inside the sealing cavity 33. A number of springs 31 are evenly distributed between the lower end of the sliding plate 3 and the sealing cavity 33. One end of a number of support rods 32 is evenly distributed at the lower end of the sliding plate 3, and the other end of a number of support rods 32 all hermetically penetrate downward through the sealing cavity 33. Liquid outlet holes 34 are arranged at the lower ends of half of a number of the support rods 32, and liquid inlet holes 35 are arranged at the lower ends of the other half of the support rods 32. The liquid outlet holes 34 and the liquid inlet holes 35 are both communicated with the sealing cavity 33 above the sliding plate 3. Sealing oil is stored in the sealing cavity 33 above the sliding plate 3. When the sealing bump 2 gradually enters the sealing groove 21, the lower ends of the support rods 32 will contact the sealing groove 21. When the sealing bump 2 continues to enter the sealing groove 21, the support rods 32 will push the sliding plate 3 to move upward relatively. The upward movement of the sliding plate 3 will squeeze the sealing oil in the sealing cavity 33 to flow out through the liquid outlet holes 34 of the support rods 32, and the upward movement of the sliding plate 3 will simultaneously pull a number of springs 31 to stretch. At this time, the sealing oil will gradually flow into the sealing groove 21 until the cover 12 is completely screwed into the opening 11. At this time, the lower end of the sealing bump 2 will be immersed in the sealing oil, which can play a very good sealing role. When the cover 12 is screwed out of the opening 11, the sealing bump 2 gradually screws out of the sealing groove 21. At this time, a number of springs 31 will pull the sliding plate 3 to move downward relatively through their own springs. Since the sliding plate 3 is hermetically slidable with the sealing cavity 33, a negative pressure will be relatively formed at the upper end of the sealing cavity 33 at this time, that is, when the sliding plate 3 moves downward relatively, the sealing oil will be gradually sucked back into the sealing cavity 33 through the liquid inlet holes 35 on the support rods 32, so as to achieve the effect of recovering the sealing oil.

[0026] An inlet check valve is provided in the liquid inlet hole 35, and an outlet check valve is provided in the liquid outlet hole 34. The discharge and recovery of the sealing oil are realized through the inlet check valve and the outlet check valve. At the same time, both the outlet check valve and the inlet check valve are opening pressure valves. Therefore, when the slide plate 3 is stationary, the sealing oil will not flow out from the liquid inlet hole 35 or the liquid outlet hole 34.

[0027] The cover 12 is provided with an annular gasket. By contacting the outer surface of the oil storage tank 1 outside the opening 11 through the annular gasket, the overall sealing effect of the cover 12 is increased.

[0028] A rubber pad is provided on the circumferential side of the cover 12. The friction between people's hands and the cover 12 can be increased through the rubber pad, thereby facilitating people to rotate the cover 12.

[0029] The above embodiments only exemplarily illustrate the principles and effects of the present invention, rather than limiting the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A fully enclosed natural ester insulating oil storage structure, including an oil storage tank, characterized in that: The upper end of the oil storage tank is provided with an opening, the opening is threadedly connected with a sealing cover, and a sealing component is provided between the sealing cover and the oil storage tank; The sealing assembly includes a sealing protrusion which is annular as a whole. The sealing protrusion is fixedly arranged at the lower end of the sealing cover. The oil storage tank is provided with a sealing groove which matches the sealing protrusion. The inner ring and the outer ring of the sealing protrusion are both provided with sealing rings. The sealing protrusion and the sealing groove are also directly provided with a liquid sealing component.

2. The fully enclosed natural ester insulating oil storage structure according to claim 1, characterized in that: The liquid sealing component includes a slide plate, a plurality of springs and a plurality of support rods. A sealing cavity is provided inside the sealing protrusion. The slide plate is sealed and slidably arranged in the sealing cavity up and down. A plurality of springs are evenly distributed between the lower end of the slide plate and the sealing cavity. One ends of a plurality of support rods are evenly distributed at the lower end of the slide plate. The other ends of a plurality of support rods are sealed downward and penetrate the sealing cavity. A plurality of half of the support rods are provided with a liquid outlet at the lower end, and a plurality of the other half of the support rods are provided with a liquid inlet at the lower end. The liquid outlet and the liquid inlet are both connected to the sealing cavity located on the upper side of the slide plate.

3. The fully enclosed natural ester insulating oil storage structure according to claim 2, characterized in that: A water inlet one-way valve is arranged in the liquid inlet hole, and a water outlet one-way valve is arranged in the liquid outlet hole.

4. The fully enclosed natural ester insulating oil storage structure according to claim 1, characterized in that: The sealing cover is provided with an annular sealing gasket.

5. The fully enclosed natural ester insulating oil storage structure according to claim 1, characterized in that: A rubber pad is provided on the side of the sealing ring.

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