Transformer oil tank

Abstract

The utility model discloses a transformer oil tank which comprises a transformer body, the transformer body is installed on external equipment, a pressure regulating mechanism is arranged on the transformer body, and the pressure regulating mechanism comprises a box body, a threaded pipe, a pressure relief pipe, a bearing disc, a sealing mechanism, a guide rod, a threaded block, a push spring, a guide sleeve, a rotating disc and a bearing mechanism. The threaded pipe is connected to the box body in a threaded mode, the pressure relief pipe is installed on the threaded pipe, the bearing disc is installed on the threaded pipe, the sealing mechanism is connected to the bearing disc and the guide rod in a matched mode, and when internal pressure exceeds a set value, thrust of the push spring is overcome, sealing between the one-way plate and the bearing groove is relieved, and the annular sleeve is unfastened accordingly. By arranging the pressure regulating mechanism, internal high-pressure gas is exhausted through the pressure relief pipe and the gas outlet pipe, so that the pressure relief process is completed, the design of the pressure regulating mechanism enables the transformer oil tank to keep stable internal pressure under different working conditions, and the safety and reliability of the transformer are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer oil tanks, and more specifically, to a transformer oil tank. Background Art

[0002] In the existing technology, the transformer oil tank may encounter harsh conditions in the surrounding environment during use, especially in high temperature environments. Since the transformer generates a lot of heat during operation, if the oil in the oil tank is insufficient, the cavity at the top of the oil tank may increase internal pressure due to the expansion of hot air. This excessive pressure will not only threaten the structural integrity of the oil tank, but also may affect the normal operation of the transformer.

[0003] Since the oil tank is usually not full, if the temperature of the upper cavity is too early, it will cause excessive pressure and affect the use of the oil tank. This is because there is usually a certain amount of space in the oil tank so that the oil volume can expand or contract when the oil temperature changes. However, if the cavity at the top of the oil tank is overheated in a high temperature environment, the expansion of the hot air will cause the internal pressure to increase. This excessive pressure may cause damage to the sealing performance and structural integrity of the oil tank, and may even cause the oil tank to deform or rupture. In addition, the increase in pressure may also affect the cooling effect of the transformer, because excessive pressure may hinder the flow of oil in the tank, thereby affecting the heat dissipation effect of the transformer. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides a transformer oil tank to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transformer oil tank, comprising a transformer body, the transformer body is mounted on external equipment, a voltage regulating mechanism is arranged on the transformer body, the voltage regulating mechanism comprises a box body, a threaded pipe, a pressure relief pipe, a receiving plate, a sealing mechanism, a guide rod, a threaded block, a push spring, a guide sleeve, a rotating plate and a receiving mechanism, the threaded pipe is threadedly connected to the box body, the pressure relief pipe is mounted on the threaded pipe, the receiving plate is mounted on the threaded pipe, the sealing mechanism is cooperatively connected to the receiving plate and the guide rod, the threaded block is threadedly connected in the pressure relief pipe, the guide rod is slidably connected in the threaded block, the guide sleeve is mounted on the threaded block, the rotating plate is mounted on the guide sleeve, one end of the push spring abuts against the rotating plate, the other end of the push spring is fixedly mounted on the guide rod, and the receiving mechanism is mounted on the rotating plate.

[0008] The utility model is further configured that the sealing mechanism comprises a one-way plate and an annular sleeve, the one-way plate is mounted on the guide rod, and the annular sleeve is mounted on the one-way plate, and the design of the sealing mechanism ensures the sealing effect.

[0009] The utility model is further configured that a receiving groove is provided on the receiving plate, a plurality of annular sleeves abut against the receiving groove, a groove is provided on the receiving plate, the one-way plate abuts against the groove, and the design of the receiving groove ensures a sealing effect.

[0010] The utility model is further configured that a plurality of air outlet pipes are provided on the side wall of the pressure relief pipe, and the plurality of air outlet pipes are respectively connected to the pressure relief pipe at equal distances, and the design of the air outlet pipes ensures the continuity of air outlet.

[0011] The utility model is further configured that a bracket is provided on the transformer body, a box body is mounted on the bracket, an oil pipe is connected to the box body, and the oil pipe is connected to the transformer body, and the design of the bracket ensures the stability of the box body.

[0012] The utility model is further configured that the receiving mechanism includes a sealing sleeve and an intermediate sleeve, the sealing sleeve is threadedly connected to the pressure relief pipe, the intermediate sleeve is coaxially installed on the sealing sleeve, and the guide sleeve is slidably connected in the intermediate sleeve. The design of the receiving mechanism ensures the stability of the threaded block.

[0013] The utility model is further configured that a plurality of sealing springs are arranged on the rotating disk, a plurality of sealing springs are provided with a resistance sleeve, the resistance sleeve is fitted on the sealing sleeve, and the design of the sealing spring ensures the stability of the threaded connection.

[0014] The utility model is further configured that the rotating disk is provided with a hexagonal groove and a vent hole, the vent hole is connected to the guide sleeve, a plurality of anti-skid grooves are equidistantly provided on the side wall of the rotating disk, and the design of the vent hole ensures the pressure connection.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a transformer oil tank, which has the following beneficial effects:

[0017] 1. The pressure regulating mechanism realizes the effective regulation of the internal pressure of the transformer oil tank through the coordinated action of the threaded tube, pressure relief tube, receiving plate, sealing mechanism, guide rod, threaded block, push spring, guide sleeve, rotating plate and receiving mechanism inside. When the internal pressure exceeds the set value, the thrust of the push spring is overcome, the seal between the one-way plate and the receiving groove is released, and the annular sleeve is also unlocked, so that the internal high-pressure gas is discharged through the pressure relief tube and the air outlet pipe, thereby completing the pressure relief process. The design of the pressure regulating mechanism enables the transformer oil tank to maintain a stable internal pressure under different working conditions, thereby improving the safety and reliability of the transformer.

[0018] 2. The sealing mechanism consists of a one-way plate and an annular sleeve, which are connected between the receiving plate and the guide rod. When the internal pressure is normal, the seals between the one-way plate and the receiving groove and between the annular sleeve and the receiving groove remain closed to prevent oil leakage in the oil tank. When the internal pressure exceeds the set value, the seal between the one-way plate and the receiving groove is released, and the annular sleeve is also released, so that the internal high-pressure gas can be discharged through the pressure relief pipe. The design of the sealing mechanism ensures the sealing performance of the transformer tank under normal working conditions, and can respond quickly when the pressure is abnormal, release the over-pressure gas, and protect the structural integrity of the transformer tank.

[0019] 3. The receiving mechanism includes a sealing sleeve and an intermediate sleeve, which are connected to the pressure relief pipe and interact with the guide sleeve and the rotating disk. The sealing sleeve is threadedly connected to the pressure relief pipe. When the pressure of the pressure relief is adjusted, the threaded adjustment of the threaded block and the pressure relief pipe may cause the connection between the threaded block and the pressure relief pipe to be unstable. At this time, the sealing spring can drive the guide sleeve to have an upward force, thereby ensuring the stable adjustment of the threaded block and the pressure relief pipe, and then ensuring the continuity and stability of the adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a transformer oil tank in the utility model;

[0021] Figure 2 It is a structural schematic diagram of the pressure regulating mechanism in the utility model;

[0022] Figure 3 For the utility model Figure 2 Schematic diagram of the cross-section structure;

[0023] Figure 4 It is a structural schematic diagram of the guide rod in the utility model;

[0024] Figure 5 It is a structural schematic diagram of the threaded block in the utility model.

[0025] In the figure: 1. Transformer body; 2. Box body; 3. Threaded pipe; 4. Pressure relief pipe; 5. Receiver plate; 6. Guide rod; 7. Threaded block; 8. Push spring; 9. Guide sleeve; 10. Rotating plate; 11. One-way plate; 12. Annular sleeve; 13. Receiver groove; 14. Bevel; 15. Air outlet pipe; 16. Bracket; 17. Oil pipe; 18. Sealing sleeve; 19. Intermediate sleeve; 20. Sealing spring; 21. Contact sleeve; 22. Hexagonal groove; 23. Vent hole; 24. Anti-skid groove. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 A transformer oil tank comprises a transformer body 1, the transformer body 1 is mounted on an external device, a voltage regulating mechanism is arranged on the transformer body 1, the voltage regulating mechanism comprises a box body 2, a threaded pipe 3, a pressure relief pipe 4, a receiving plate 5, a sealing mechanism, a guide rod 6, a threaded block 7, a push spring 8, a guide sleeve 9, a rotating disk 10 and a receiving mechanism, the threaded pipe 3 is threadedly connected to the box body 2, the pressure relief pipe 4 is mounted on the threaded pipe 3, the receiving plate 5 is mounted on the threaded pipe 3, the sealing mechanism is cooperatively connected to the receiving plate 5 and the guide rod 6, the threaded block 7 is threadedly connected in the pressure relief pipe 4, the guide rod 6 is slidably connected in the threaded block 7, the guide sleeve 9 is mounted on the threaded block 7, the rotating disk 10 is mounted on the guide sleeve 9, and one end of the push spring 8 abuts against the rotating disk 10. On the rotating disk 10, the other end of the push spring 8 is fixedly mounted on the guide rod 6, the receiving mechanism is mounted on the rotating disk 10, the sealing mechanism includes a one-way plate 11 and an annular sleeve 12, the one-way plate 11 is mounted on the guide rod 6, the annular sleeve 12 is mounted on the one-way plate 11, a receiving groove 13 is provided on the receiving disk 5, and multiple annular sleeves 12 abut against the receiving groove 13, a groove 14 is provided on the receiving disk 5, and the one-way plate 11 abuts against the groove 14, a plurality of air outlet pipes 15 are provided on the side wall of the pressure relief pipe 4, and the plurality of air outlet pipes 15 are respectively and equidistantly connected to the pressure relief pipe 4, a bracket 16 is provided on the transformer body 1, the box body 2 is mounted on the bracket 16, an oil pipe 17 is connected to the box body 2, and the oil pipe 17 is connected to the transformer body 1.

[0030] In this embodiment, when the weather is hot and the internal temperature rises and the pressure increases, when the pressure exceeds the thrust of the push spring 8, the seal between the one-way plate 11 and the receiving groove 13 will be released, and the annular sleeve 12 will also be released. Then the high-pressure gas will be discharged through the pressure relief pipe 4 and the air outlet pipe 15, thereby completing the pressure relief process. When the pressure of the pressure relief needs to be adjusted, the rotation of the spiral disk can drive the rotation of the threaded block 7. Since the threaded block 7 is threadedly connected to the pressure relief pipe 4, the push spring 8 can be compressed, thereby changing the thrust of the push spring 8, thereby ensuring the pressure regulation of the one-way plate 11 and completing the pressure relief regulation.

[0031] See also Figure 2 and Figure 3 As an implementation method of the receiving mechanism: the receiving mechanism includes a sealing sleeve 18 and an intermediate sleeve 19, the sealing sleeve 18 is threadedly connected to the pressure relief pipe 4, the intermediate sleeve 19 is coaxially installed on the sealing sleeve 18, the guide sleeve 9 is slidably connected in the intermediate sleeve 19, a plurality of sealing springs 20 are provided on the rotating disk 10, a plurality of sealing springs 20 are provided with a resistance sleeve 21, the resistance sleeve 21 is attached to the sealing sleeve 18, a hexagonal groove 22 and a vent 23 are opened on the rotating disk 10, the vent 23 is connected to the guide sleeve 9, and a plurality of anti-slip grooves 24 are equidistantly opened on the side wall of the rotating disk 10.

[0032] More specifically, when the pressure of the pressure relief is adjusted, the connection becomes unstable when the threaded block 7 and the pressure relief pipe 4 are moved to the middle position due to the threaded adjustment. The sealing spring 20 can drive the guide sleeve 9 to have an upward force, thereby ensuring the stable adjustment of the threaded block 7 and the pressure relief pipe 4, and further ensuring the continuity of the adjustment.

[0033] In summary, when the overall equipment is in use or running: when the weather is hot and the internal temperature rises and the pressure becomes larger, when the pressure exceeds the thrust of the push spring 8, the seal between the one-way plate 11 and the receiving groove 13 will be released, and the annular sleeve 12 will also be released, and then the higher-pressure gas will be discharged through the pressure relief pipe 4 and the outlet pipe 15, thereby completing the pressure relief process. When the pressure of the pressure relief needs to be adjusted, the rotation of the spiral disk can drive the rotation of the threaded block 7. Since the threaded block 7 is threadedly connected to the pressure relief pipe 4, the push spring 8 can be compressed, thereby changing the thrust of the push spring 8, thereby ensuring the pressure regulation of the one-way plate 11 and completing the pressure relief regulation.

[0034] When the pressure of the pressure relief is adjusted, the connection becomes unstable when the threaded block 7 and the pressure relief pipe 4 are moved to the middle position due to the threaded adjustment. The sealing spring 20 can drive the guide sleeve 9 to have an upward force, thereby ensuring the stable adjustment of the threaded block 7 and the pressure relief pipe 4, and further ensuring the continuity of the adjustment.

[0035] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A transformer oil tank, comprising a transformer body (1), the transformer body (1) being mounted on an external device, characterized in that: The transformer body (1) is provided with a voltage regulating mechanism, which comprises a box body (2), a threaded pipe (3), a pressure relief pipe (4), a receiving plate (5), a sealing mechanism, a guide rod (6), a threaded block (7), a push spring (8), a guide sleeve (9), a rotating plate (10) and a receiving mechanism. The threaded pipe (3) is threadedly connected to the box body (2), the pressure relief pipe (4) is mounted on the threaded pipe (3), the receiving plate (5) is mounted on the threaded pipe (3), the sealing mechanism is cooperatively connected to the receiving plate (5) and the guide rod (6), the threaded block (7) is threadedly connected in the pressure relief pipe (4), the guide rod (6) is slidably connected in the threaded block (7), the guide sleeve (9) is mounted on the threaded block (7), the rotating plate (10) is mounted on the guide sleeve (9), one end of the push spring (8) abuts against the rotating plate (10), the other end of the push spring (8) is fixedly mounted on the guide rod (6), and the receiving mechanism is mounted on the rotating plate (10).

2. A transformer oil tank according to claim 1, characterized in that: The sealing mechanism comprises a one-way plate (11) and an annular sleeve (12); the one-way plate (11) is mounted on the guide rod (6), and the annular sleeve (12) is mounted on the one-way plate (11).

3. A transformer oil tank according to claim 2, characterized in that: The receiving plate (5) is provided with a receiving groove (13), a plurality of annular sleeves (12) abut against the receiving groove (13), a groove (14) is provided on the receiving plate (5), and the one-way plate (11) abuts against the groove (14).

4. A transformer oil tank according to claim 3, characterized in that: A plurality of air outlet pipes (15) are provided on the side wall of the pressure relief pipe (4), and the plurality of air outlet pipes (15) are respectively connected to the pressure relief pipe (4) at equal distances.

5. A transformer oil tank according to claim 4, characterized in that: The transformer body (1) is provided with a bracket (16), the box body (2) is mounted on the bracket (16), the box body (2) is connected with an oil pipe (17), and the oil pipe (17) is connected with the transformer body (1).

6. A transformer oil tank according to claim 1, characterized in that: The receiving mechanism comprises a sealing sleeve (18) and an intermediate sleeve (19); the sealing sleeve (18) is threadedly connected to the pressure relief pipe (4); the intermediate sleeve (19) is coaxially mounted on the sealing sleeve (18); and the guide sleeve (9) is slidably connected in the intermediate sleeve (19).

7. A transformer oil tank according to claim 6, characterized in that: The rotating disk (10) is provided with a plurality of sealing springs (20), and the plurality of sealing springs (20) are provided with a resisting sleeve (21), and the resisting sleeve (21) is attached to the sealing sleeve (18).

8. A transformer oil tank according to claim 7, characterized in that: The rotating disk (10) is provided with a hexagonal groove (22) and a vent hole (23), the vent hole (23) is connected to the guide sleeve (9), and a plurality of anti-slip grooves (24) are equidistantly provided on the side wall of the rotating disk (10).

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