A transformer insulating oil dehydration tank

Abstract

The utility model is suitable for insulating oil purification technical field provides a kind of transformer insulating oil dehydration tank, including tank body, the tank body is by two half shell and annular cylinder, the annular cylinder is placed between two the half shell;It is equipped in the tank body for the spray head for spraying insulating oil in tank body;It is equipped in the tank body for the heating pipe for heating insulating oil;A group of filter screens are fixedly installed in the annular cylinder, and adjacent the filter screen is arranged in upper and lower layer stack;Molecular sieve is placed between a group of the filter screen, and the molecular sieve is used to filter the impurity in insulating oil.The dehydration tank of transformer insulating oil provided in the scheme is separated by baffle compartment, and supporting mechanism is conveniently replaced molecular sieve, and sealing structure prevents oil overflow and corrugated pipe flexible adaptation etc. Design, realizes insulating oil efficient dehydration, molecular sieve quick replacement, equipment sealing property enhancement and operation convenience improvement.

Description

Technical Field

[0001] This utility model belongs to the field of insulating oil purification technology, and in particular relates to a transformer insulating oil dehydration tank. Background Technology

[0002] Transformer insulating oil dehydration tanks are key equipment used to remove moisture and gas from insulating oil, ensuring the insulating performance and chemical stability of transformer oil.

[0003] Currently, most existing insulating oil dehydration tanks have a highly sealed structure. When replacing the internal filter material, it is necessary to remove multiple bolts to open the tank, which is a time-consuming operation. Utility Model Content

[0004] This utility model provides a transformer insulating oil dehydration tank, which aims to solve the problem mentioned in the background art that the dehydration tanks currently used are inconvenient for quick replacement of internal filter media.

[0005] To solve the above problems, this utility model is implemented as follows: a transformer insulating oil dehydration tank, comprising: a tank body, the tank body being composed of two half-shells and an annular cylinder, the annular cylinder being placed between the two half-shells; a nozzle disposed within the tank body for spraying insulating oil into the tank body; a heating pipe disposed within the tank body for heating the insulating oil; a set of filter screens fixedly installed within the annular cylinder, adjacent filter screens being stacked vertically; a molecular sieve placed between the set of filter screens, the molecular sieve being used to filter impurities in the insulating oil; a set of fixing plates respectively fixedly installed on one side of the two half-shells, a first hydraulic cylinder being fixedly installed between adjacent fixing plates; and a rotating mechanism disposed on the tank body for increasing the contact area between the insulating oil and the vacuum.

[0006] Preferably, the rotating mechanism includes: an inlet pipe fixedly installed on one side of the tank for supplying liquid to the nozzle; a rotary joint installed between the inlet pipe and the nozzle; a support box fixedly installed on one side of the inner wall of the tank, the support box being rotatably connected to the branch pipe of the nozzle; a motor fixedly installed on one side of the tank, the motor output shaft and the branch pipe being fixedly fitted with sprockets; and a chain fitted on the two sprockets.

[0007] Preferably, one end of the semi-shell is provided with an annular limiting groove, a sealing strip is installed in the annular limiting groove, and an annular limiting block is fixedly installed at one end of the annular cylinder. The annular limiting block is adapted to the annular limiting groove, and the annular limiting block is in close contact with the sealing strip.

[0008] Preferably, an annular hopper is fixedly installed inside the tank, the annular hopper is located above the filter screen, a cover plate is detachably installed on the filter screen located above, a vacuum tube is installed on one side of the tank, and a mesh for isolating steam and insulating oil is fixedly installed on one side of the inner wall of the tank.

[0009] Preferably, a partition is fixedly installed inside the tank, which separates the tank to form a steam condensation chamber and an insulating oil dehydration chamber. The partition is located above the liquid inlet pipe. An exhaust pipe for discharging steam is installed inside the steam condensation chamber, and the exhaust pipe is connected to the insulating oil dehydration chamber. A condenser pipe for condensing steam is installed inside the steam condensation chamber, and a water-separating plate for adsorbing water droplets is fixedly installed inside the steam condensation chamber.

[0010] Preferably, an inclined plate is fixedly installed on the top of the partition, the inclined plate is used to drain wastewater from the steam condensation chamber, and a protective cover for protecting the motor and sprocket is fixedly installed on one side of the tank.

[0011] Preferably, the tank body is provided with a support mechanism for supporting the annular cylinder. The support mechanism includes: a support cylinder fixedly installed at the bottom of the inner wall of the tank body; a support rod slidably disposed on the support cylinder and slidably passing through the bottom of the tank body; a support wheel fixedly installed at the top of the support rod for supporting the filter screen; and a second hydraulic cylinder fixedly installed at the bottom of the tank body for adjusting the height of the support wheel. The second hydraulic cylinder is fixedly connected to the mounting plate of the support rod.

[0012] Preferably, a baffle is fixedly sleeved on the support rod, and a sealing ring is fixedly installed at the bottom of the baffle. The sealing ring is in close contact with the top of the support cylinder and is used to seal the connection gap between the support cylinder and the support rod. A drain pipe is installed at the bottom of the tank, and a corrugated pipe is installed on the drain pipe.

[0013] Compared with related technologies, the transformer insulating oil dehydration tank provided by this utility model has the following beneficial effects:

[0014] Compared with existing technologies, the transformer insulating oil dehydration tank provided by this solution has a structure with a first hydraulic cylinder and an annular cylinder. Only the first hydraulic cylinder needs to be activated to separate the annular cylinder from the half shell, making it convenient and quick to remove the annular cylinder for filter material replacement, which greatly saves operation time. The insulating oil is sprayed into the tank through a nozzle, and the heating tube heats the insulating oil. The rotating mechanism increases the contact area between the insulating oil and the vacuum. Combined with the filter screen and molecular sieve, the moisture, gas and impurities in the insulating oil are removed, effectively ensuring the insulation performance and chemical stability of the transformer oil.

[0015] In summary, the transformer insulating oil dehydration tank of this utility model achieves efficient dehydration of insulating oil, rapid replacement of molecular sieves, enhanced equipment sealing, and improved operational convenience through the design of partitioned chambers, convenient molecular sieve replacement with support mechanism, oil overflow prevention with sealing structure, and flexible adaptation of bellows. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main sectional view of a transformer insulating oil dehydration tank provided by this utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of a transformer insulating oil dehydration tank provided by this utility model;

[0018] Figure 3 for Figure 1 An enlarged structural diagram of part A shown in the figure;

[0019] Figure 4 for Figure 1 The diagram shows an enlarged view of part B.

[0020] Reference numerals: 1. Tank body; 2. Nozzle; 3. Heating tube; 4. Annular cylinder; 5. Filter screen; 6. Molecular sieve; 7. Fixing plate; 8. First hydraulic cylinder; 9. Inlet pipe; 10. Rotary joint; 11. Support box; 12. Motor; 13. Sprocket; 14. Chain; 15. Annular limiting block; 16. Annular hopper; 17. Cover plate; 18. Partition plate; 19. Exhaust pipe; 20. Condenser pipe; 21. Water baffle plate; 22. Inclined plate; 23. Protective cover; 24. Vacuum tube; 25. Partition mesh; 26. Support cylinder; 27. Support rod; 28. Support wheel; 29. ​​Second hydraulic cylinder; 30. Baffle plate; 31. Sealing ring; 32. Bellows. Detailed Implementation

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model embodiment provides a transformer insulating oil dehydration tank, such as Figure 1-4 As shown, the transformer insulating oil dehydration tank includes: a tank body 1, which is composed of two half-shells and an annular cylinder 4, with the annular cylinder 4 placed between the two half-shells; a nozzle 2 disposed inside the tank body 1 for spraying insulating oil into the tank body 1; a heating pipe 3 disposed inside the tank body 1 for heating the insulating oil; a set of filter screens 5 fixedly installed inside the annular cylinder 4, with adjacent filter screens 5 stacked vertically; a molecular sieve 6 placed between the set of filter screens 5, the molecular sieve 6 being used to filter impurities in the insulating oil; a set of fixing plates 7 respectively fixedly installed on one side of the two half-shells, with a first hydraulic cylinder 8 fixedly installed between adjacent fixing plates 7; and a rotating mechanism disposed on the tank body 1 for increasing the contact area between the insulating oil and the vacuum.

[0024] In this embodiment, when the internal filter media (filter screen 5 and molecular sieve 6) need to be replaced, the first hydraulic cylinder 8 is activated. The action of the first hydraulic cylinder 8 causes the lower half-shell to move down, while simultaneously driving the annular cylinder 4 to slide down, separating the annular cylinder 4 from the upper half-shell. Then, the annular cylinder 4 can be removed, and the filter screen 5 and molecular sieve 6 can be replaced. By setting the structure of the first hydraulic cylinder 8 and the annular cylinder 4, only the activation of the first hydraulic cylinder 8 is needed to separate the annular cylinder 4 from the half-shell, making it convenient and quick to remove the annular cylinder 4 for filter media replacement, greatly saving operation time. The insulating oil is sprayed into the tank 1 through the nozzle 2, and the heating tube 3 heats the insulating oil. The rotating mechanism increases the contact area between the insulating oil and the vacuum. Combined with the filter screen 5 and molecular sieve 6, the insulating oil removes moisture, gas and impurities, effectively ensuring the insulating performance and chemical stability of the transformer oil.

[0025] In a further preferred embodiment of the present invention, the rotating mechanism includes: an inlet pipe 9 fixedly installed on one side of the tank 1 for supplying liquid to the nozzle 2; a rotary joint 10 installed between the inlet pipe 9 and the nozzle 2; a support box 11 fixedly installed on one side of the inner wall of the tank 1, the support box 11 being rotatably connected to the branch pipe of the nozzle 2; a motor 12 fixedly installed on one side of the tank 1, the output shaft of the motor 12 and the branch pipe being fixedly fitted with sprockets 13; and a chain 14 fitted on the two sprockets 13.

[0026] In this embodiment, during the dehydration of insulating oil, liquid is supplied to the nozzle 2 through the liquid inlet pipe 9. After starting the motor 12, the sprocket 13 on the output shaft of the motor 12 rotates, which drives the sprocket 13 on the branch pipe of the nozzle 2 to rotate through the chain 14, thereby realizing the rotation of the nozzle 2. The rotating nozzle 2 can evenly spray the insulating oil onto the inner wall of the tank 1. Compared with the fixed spraying method, it can make the insulating oil more fully contact the inner wall of the tank 1, thereby improving the heating efficiency. At the same time, the rotating nozzle 2 makes the insulating oil form a more complex flow path in the tank 1, effectively increasing the contact area with the vacuum, and further improving the dehydration effect.

[0027] In a further preferred embodiment of the present invention, an annular limiting groove is provided at one end of the semi-shell, a sealing strip is installed in the annular limiting groove, and an annular limiting block 15 is fixedly installed at one end of the annular cylinder 4. The annular limiting block 15 is adapted to the annular limiting groove, and the annular limiting block 15 is in close contact with the sealing strip.

[0028] In this embodiment, when the annular cylinder 4 is installed between the two half-shells, the annular limiting block 15 will be embedded in the annular limiting groove and in close contact with the sealing strip in the annular limiting groove, thereby achieving the sealing of the tank 1. Through the cooperation of the annular limiting block 15 with the annular limiting groove and the sealing strip, the leakage of insulating oil in the tank 1 can be effectively prevented, ensuring the stability of the internal environment of the dehydration tank and ensuring the normal operation of the insulating oil dehydration operation.

[0029] In a further preferred embodiment of the present invention, an annular hopper 16 is fixedly installed inside the tank body 1, the annular hopper 16 is located above the filter screen 5, a cover plate 17 is detachably installed on the filter screen 5 located above, a vacuum tube 24 is installed on one side of the tank body 1, and a mesh 25 for isolating steam and insulating oil is fixedly installed on one side of the inner wall of the tank body 1.

[0030] In this embodiment, when the insulating oil is sprayed from the nozzle 2, the annular bucket 16 can guide the insulating oil to a certain extent, so that the insulating oil is more evenly distributed and flows to the filter screen 5, avoiding the insulating oil directly impacting the filter screen 5 and causing excessive local pressure or damage to the filter screen 5. When it is necessary to replace the filter screen 5 or maintain the components above the filter screen 5, the cover plate 17 can be easily removed for easy operation.

[0031] Vacuum tube 24 is used to connect to the vacuum system and create a vacuum environment inside the tank 1, which helps to remove moisture and gas from the insulating oil. The mesh 25 isolates steam and insulating oil. During the heating of the insulating oil, steam is generated. The mesh 25 can prevent steam from entering the vacuum system. The setting of the annular hopper 16 makes the insulating oil flow more evenly, improves the filtration effect and service life of the filter screen 5, and also ensures the stable flow of insulating oil in the tank 1.

[0032] In a further preferred embodiment of this utility model, a partition 18 is fixedly installed inside the tank body 1. The partition 18 separates the tank body 1 to form a steam condensation chamber and an insulating oil dehydration chamber. The partition 18 is located above the liquid inlet pipe 9. An exhaust pipe 19 for discharging steam is installed inside the steam condensation chamber. The exhaust pipe 19 is connected to the insulating oil dehydration chamber. A condenser pipe 20 for condensing steam is installed inside the steam condensation chamber. A water-separating plate 21 for adsorbing water droplets is fixedly installed inside the steam condensation chamber.

[0033] In this embodiment, when steam is generated during the dehydration of insulating oil, the steam can enter the steam condensation chamber through the exhaust pipe 19. Simultaneously, the exhaust pipe 19 is connected to the insulating oil dehydration chamber, ensuring that the steam can be smoothly discharged without affecting the pressure balance within the chamber. Inside the steam condensation chamber, the condenser pipe 20 exchanges heat with an external cooling medium (such as cold water), cooling and liquefying the steam entering the chamber, thus achieving steam condensation. The condensed steam forms water droplets, which are absorbed by the water baffle plate 21, preventing them from re-entering the insulating oil dehydration chamber and ensuring the effective dehydration of the insulating oil.

[0034] In a further preferred embodiment of the present invention, an inclined plate 22 is fixedly installed on the top of the partition 18. The inclined plate 22 is used to discharge wastewater in the steam condensation chamber. A protective cover 23 for protecting the motor 12 and the sprocket 13 is fixedly installed on one side of the tank body 1.

[0035] In this embodiment, after the steam is condensed into water droplets by the condenser tube 20 in the steam condensation chamber, the water droplets gradually accumulate at the bottom of the steam condensation chamber. The inclined plate 22 is installed on the top of the partition plate 18, and its inclined surface can guide the wastewater to flow along the inclined surface, which facilitates the discharge of wastewater in the steam condensation chamber. The protective cover 23 covers the motor 12 and the sprocket 13, which plays a protective role, preventing external objects from damaging the motor 12 and the sprocket 13, and also preventing personnel from accidentally touching the operating parts, thus ensuring the safety of the operators.

[0036] In a further preferred embodiment of the present invention, a support mechanism for supporting the annular cylinder 4 is provided inside the tank body 1. The support mechanism includes: a support cylinder 26 fixedly installed at the bottom of the inner wall of the tank body 1; a support rod 27 slidably disposed on the support cylinder 26 and slidably passing through the bottom of the tank body 1; a support wheel 28 fixedly installed at the top of the support rod 27 for supporting the filter screen 5; and a second hydraulic cylinder 29 fixedly installed at the bottom of the tank body 1 for adjusting the height of the support wheel 28. The second hydraulic cylinder 29 is fixedly connected to the mounting plate of the support rod 27.

[0037] In this embodiment, when replacing the molecular sieve 6, the first hydraulic cylinder 8 is first activated to lower the lower half-shell, making room for subsequent operations. Then, the second hydraulic cylinder 29 is activated, and the extension and retraction of the second hydraulic cylinder 29 drives the support rod 27 to slide upward inside the support cylinder 26, thereby raising the support wheel 28 and supporting the filter screen 5, so that the annular cylinder 4 is suspended between the two half-shells. Then, the handle on one side of the annular cylinder 4 is pulled to pull out the annular cylinder 4 for the replacement of the molecular sieve 6. By setting up a support mechanism, when replacing the molecular sieve 6, the annular cylinder 4 can be suspended first and then easily pulled out, which greatly simplifies the operation process of replacing the molecular sieve 6 and improves the replacement efficiency.

[0038] In a further preferred embodiment of this utility model, a baffle 30 is fixedly sleeved on the support rod 27, and a sealing ring 31 is fixedly installed at the bottom of the baffle 30. The sealing ring 31 is in close contact with the top of the support cylinder 26. The sealing ring 31 is used to seal the connection gap between the support cylinder 26 and the support rod 27. A drain pipe is installed at the bottom of the tank body 1, and a corrugated pipe 32 is installed on the drain pipe.

[0039] In this embodiment, when the support rod 27 slides inside the support cylinder 26, the sealing ring 31 is in close contact with the top of the support cylinder 26 to seal the connection gap between the support cylinder 26 and the support rod 27, preventing insulating oil from overflowing from the connection. The bellows 32 can shrink synchronously when the annular cylinder 4 is removed, which will not affect the replacement of the annular cylinder 4 or the connection with the external pipeline.

[0040] In summary, compared with related technologies, this dehydration tank achieves efficient dehydration of insulating oil, rapid replacement of molecular sieves, enhanced equipment sealing, and improved operational convenience through designs such as partitioned chambers, convenient molecular sieve replacement via support mechanism, oil spill prevention via sealing structure, and flexible bellows adaptation.

[0041] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A transformer insulating oil dehydration tank, characterized in that, include: The tank body (1) is composed of two half-shells and an annular cylinder (4), the annular cylinder (4) being placed between the two half-shells; A nozzle (2) is installed inside the tank (1) for spraying insulating oil into the tank (1); A heating pipe (3) for heating insulating oil is installed inside the tank (1); A set of filter screens (5) are fixedly installed inside the annular cylinder (4), with adjacent filter screens (5) stacked one on top of the other; A molecular sieve (6) is placed between a set of the filter screens (5), the molecular sieve (6) being used to filter impurities in the insulating oil; A set of fixing plates (7) are fixedly installed on one side of the two half-shells respectively, and a first hydraulic cylinder (8) is fixedly installed between adjacent fixing plates (7); A rotating mechanism is provided on the tank (1) to increase the contact area between the insulating oil and the vacuum.

2. The transformer insulating oil dehydration tank as described in claim 1, characterized in that, The rotating mechanism includes: A liquid inlet pipe (9) is fixedly installed on one side of the tank (1) for supplying liquid to the nozzle (2); Rotary joint (10) installed between the inlet pipe (9) and the nozzle (2); A support box (11) is fixedly installed on one side of the inner wall of the tank (1), and the support box (11) is rotatably connected to the branch pipe of the nozzle (2); A motor (12) is fixedly installed on one side of the tank (1), and a sprocket (13) is fixedly sleeved on the output shaft and the branch pipe of the motor (12). Chains (14) fitted onto the two sprockets (13).

3. The transformer insulating oil dehydration tank as described in claim 1, characterized in that, An annular limiting groove is provided at one end of the semi-shell, and a sealing strip is installed in the annular limiting groove. An annular limiting block (15) is fixedly installed at one end of the annular cylinder (4). The annular limiting block (15) is adapted to the annular limiting groove, and the annular limiting block (15) is in close contact with the sealing strip.

4. The transformer insulating oil dehydration tank as described in claim 1, characterized in that, An annular hopper (16) is fixedly installed inside the tank (1). The annular hopper (16) is located above the filter screen (5). A cover plate (17) is detachably installed on the filter screen (5) located above. A vacuum tube (24) is installed on one side of the tank (1). A mesh (25) for isolating steam and insulating oil is fixedly installed on one side of the inner wall of the tank (1).

5. The transformer insulating oil dehydration tank as described in claim 2, characterized in that, A partition (18) is fixedly installed inside the tank (1). The partition (18) separates the tank (1) into a steam condensation chamber and an insulating oil dehydration chamber. The partition (18) is located above the liquid inlet pipe (9). An exhaust pipe (19) for discharging steam is installed inside the steam condensation chamber. The exhaust pipe (19) is connected to the insulating oil dehydration chamber. A condenser pipe (20) for condensing steam is installed inside the steam condensation chamber. A water-blocking plate (21) for adsorbing water droplets is fixedly installed inside the steam condensation chamber.

6. The transformer insulating oil dehydration tank as described in claim 5, characterized in that, An inclined plate (22) is fixedly installed on the top of the partition (18). The inclined plate (22) is used to discharge wastewater from the steam condensation chamber. A protective cover (23) for protecting the motor (12) and sprocket (13) is fixedly installed on one side of the tank (1).

7. The transformer insulating oil dehydration tank as described in claim 1, characterized in that, The tank body (1) is provided with a support mechanism for supporting the annular cylinder (4), the support mechanism including: A support cylinder (26) is fixedly installed at the bottom of the inner wall of the tank (1); A support rod (27) is slidably mounted on the support cylinder (26) and slides through the bottom of the tank body (1). A support wheel (28) is fixedly installed at the top of the support rod (27) to support the filter screen (5); A second hydraulic cylinder (29) is fixedly installed at the bottom of the tank (1) for adjusting the height of the support wheel (28). The second hydraulic cylinder (29) is fixedly connected to the mounting plate of the support rod (27).

8. The transformer insulating oil dehydration tank as described in claim 7, characterized in that, A baffle plate (30) is fixedly sleeved on the support rod (27). A sealing ring (31) is fixedly installed at the bottom of the baffle plate (30). The sealing ring (31) is in close contact with the top of the support cylinder (26). The sealing ring (31) is used to seal the connection gap between the support cylinder (26) and the support rod (27). A drain pipe is installed at the bottom of the tank body (1). A corrugated pipe (32) is installed on the drain pipe.

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