A box-type oil filling tool

Abstract

The invention discloses a box transformer oil injection tool, comprising: an oil storage tank, a vacuum oil filter box, a box transformer, a pair of check valves, a condenser, a vacuum gauge, a vacuum pump and a pair of butterfly valves; the invention has the beneficial effect that the oil inside the oil storage tank is filtered through an oil filtering structure, the vacuum oil filter box mainly filters out the air in the oil, and has a poor filtering effect on particles and water in the oil, thereby avoiding the occurrence of poor filtering effect, and at the same time, the water and particles in the oil are quickly filtered through the effects of siphoning and pressure difference, and at the same time, air will not enter the oil, thereby reducing the pressure of the vacuum oil filter, and at the same time, the vacuum filtering structure avoids the emission of particles such as metal dust in the discharged gas into the air.

Description

Technical Field

[0001] The invention relates to the technical field of oil injection for a box-type transformer, in particular to an oil injection tool for a box-type transformer. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components are primary coil, secondary coil and iron core. Its main functions include voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization, etc. According to its use, it can be divided into power transformers and special transformers. Special transformers include furnace transformers, rectifier transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, medium frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.

[0003] With the development of science and technology, vacuum oil injection has replaced traditional direct oil injection. However, the existing vacuum oil injection system has a complex structure, cumbersome process, very troublesome oil injection, and low efficiency. In addition, the existing vacuum oil injection system, the oil storage tank is generally directly connected to the vacuum oil filter without preliminary filtration, which makes the vacuum oil filter work under a relatively high pressure and reduces the oil filtration efficiency. In view of this, in-depth research was conducted on the above-mentioned problems, resulting in this case. Summary of the invention

[0004] The technical solution of the present invention for achieving the above-mentioned purpose is: a box transformer oil injection tool, comprising: an oil storage tank, a vacuum oil filter tank, a box transformer, a pair of check valves, a condenser, a vacuum gauge, a vacuum pump and a pair of butterfly valves, wherein the pair of check valves are respectively installed on both sides of the box transformer, a pair of butterfly valves are respectively installed on the oil storage tank and the vacuum pump, the vacuum oil filter tank is installed on the check valve on the oil storage tank, the vacuum oil filter tank is connected to the butterfly valve through an oil filtering structure, the condenser is installed on another butterfly valve, and the condenser is connected to the check valve on one side of the vacuum oil filter tank through a vacuum filtering structure, and the vacuum gauge is installed on the condenser;

[0005] The oil filtering structure comprises: an S-shaped filter drainage box, a filter bracket, a plurality of filter cylindrical tubes, a plurality of filter element tubes, a stirring driver, a stirring support plate, a stirring drainage shaft tube, a stirring membrane, a stirring gear box, a rotating support cylindrical tube, a plurality of concave limit blocks, a plurality of convex limit blocks, a plurality of round limit blocks, a plurality of metal filter screens, a pair of rotating bearing blocks, a feeding valve, a discharging valve, a temperature control component and an auxiliary diversion component;

[0006] The stirring support plate is installed on the inner side of the S-type filter drainage box, the stirring drainage shaft tube is inserted into the S-type filter drainage box and the stirring support plate through a bearing, the loading valve and the unloading valve are respectively installed on the upper and lower ends of the stirring drainage shaft tube in the S-type filter drainage box, the loading valve is connected to the butterfly valve, the S-type filter drainage box is connected to the vacuum oil filter, the filter bracket is installed on the inner side of the S-type filter drainage box, a number of the filter cylindrical tubes are evenly inserted into the filter bracket, a number of the filter filter tubes are respectively mounted on a number of the filter cylindrical tubes, the stirring gear box is mounted on the stirring drainage shaft tube, and the stirring drive The machine is installed on the stirring gear box, the stirring membrane is sleeved on the inner side of the stirring and drainage shaft tube, the rotating support cylindrical tube is installed on the inner side of the S-type filter drainage box through a pair of rotating bearing blocks, and a number of concave limit blocks are evenly installed on the rotating support cylindrical tube and the stirring and drainage shaft tube respectively, a number of convex limit blocks are respectively installed on both sides of a number of circular limit blocks, and a number of convex limit blocks are respectively movably inserted on the inner sides of a number of concave limit blocks, a number of metal filter screens are respectively installed on a number of circular limit blocks, the auxiliary diversion assembly is installed on the S-type filter box, and the temperature control assembly is installed on the inner side of the S-type filter box.

[0007] Preferably, the vacuum filtration structure comprises: a W-shaped filter box, a filter inner box, filter carbon, filter cotton and a plurality of filter limit plates;

[0008] Several filter limit plates are evenly installed on the inner side of the W-shaped filter box, several filter limit plates are respectively provided with several filter holes, and the filter holes on several filter limit plates are cross-arranged, the filter inner box is installed on the inner side of the W-shaped filter box, and the filter carbon and the filter cotton are installed on the inner side of the filter inner box.

[0009] Preferably, the temperature control component comprises: a well-shaped electric heating network, a temperature sensor and a plurality of drainage heating tubes;

[0010] A plurality of drainage heating tubes are respectively and evenly inserted on the filter bracket, the temperature sensor is installed at the connection between the S-type filter drainage box and the vacuum oil filter, and the well-shaped electric heating net is sleeved on a plurality of the drainage heating tubes.

[0011] Preferably, the auxiliary flow diversion component comprises: a concave water collecting block, a flow unloading valve and a liquid level sensor;

[0012] The concave water collecting block is inserted into the S-shaped filter drainage box, the unloading valve is installed on the concave water collecting block, and the liquid level sensor is installed on the concave water collecting block.

[0013] Preferably, an alarm is provided on the concave water collecting block.

[0014] Preferably, a liquid level meter is provided on the S-shaped filter drainage box.

[0015] Preferably, pressure sensors are provided inside the S-type filter drainage box and the W-type filter box.

[0016] Preferably, an electrostatic emitter is provided on the stirring and drainage shaft tube.

[0017] Preferably, an electrostatic drainage rod is provided on the S-shaped filter drainage box.

[0018] Preferably, the spacing between the plurality of filtering limit plates is 0.1 mm.

[0019] The box-type transformer oil filling tool manufactured by utilizing the technical solution of the present invention filters the oil inside the oil storage tank through the oil filtering structure. The vacuum oil filter box mainly filters out the air in the oil, but has a poor filtering effect on particles and water in the oil, thereby avoiding the occurrence of poor filtering effect. At the same time, the water and particles in the oil are quickly filtered through the effects of siphoning and pressure difference, and air will not enter the oil, thereby reducing the pressure of the vacuum oil filter. At the same time, the vacuum filtering structure prevents the discharge of particles such as metal dust in the discharged gas into the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of a box-type transformer oil injection tool described in the present invention.

[0021] Figure 2 The figure is a side structural schematic diagram of a box-type transformer oil injection tool according to the present invention.

[0022] Figure 3 The figure is a schematic diagram of the structure of a box-type transformer oil injection tool according to the present invention from a top view.

[0023] Figure 4 for Figure 1 A partial enlarged view of "A".

[0024] Figure 5 for Figure 1 A partial enlarged view of "B".

[0025] In the figure: 1. oil storage tank; 2. vacuum filter oil tank; 3. box transformer; 4. condenser; 5. vacuum gauge; 6. vacuum pump; 7. S-type filter drainage box; 8. filter bracket; 9. filter cylindrical tube; 10. filter element tube; 11. stirring drive; 12. stirring support plate; 13. stirring drainage shaft tube; 14. stirring membrane; 15. stirring gear box; 16. rotating support cylindrical tube; 17. concave limit block; 18. Convex limit block; 19. Round limit block; 20. Metal filter screen; 21. Rotating bearing block; 22. Loading valve; 23. Discharging valve; 24. W-type filter box; 25. Filter inner box; 26. Filter carbon; 27. Filter cotton; 28. Filter limit plate; 29. ​​Well-shaped electric heating net; 30. Temperature sensor; 31. Drainage heating tube; 32. Concave water collection block; 33. Unloading valve; 34. Liquid level sensor. DETAILED DESCRIPTION

[0026] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0027] Example

[0028] like Figure 1-5 As shown, a pair of the check valves are respectively installed on both sides of the box-type transformer 3, a pair of the butterfly valves are respectively installed on the oil storage tank 1 and the vacuum pump 6, the vacuum oil filter box 2 is installed on the check valve, the vacuum oil filter box 2 is connected to the butterfly valve through an oil filtering structure, the condenser 4 is installed on another butterfly valve, and the condenser 4 is connected to the other check valve through a vacuum filtering structure, and the vacuum meter 5 is installed on the condenser 4;

[0029] Specifically, the oil filtering structure includes: an S-shaped filter drainage box 7, a filter bracket 8, a plurality of filter cylindrical tubes 9, a plurality of filter element tubes 10, a stirring driver 11, a stirring support plate 12, a stirring drainage shaft tube 13, a stirring membrane 14, a stirring gear box 15, a rotating support cylindrical tube 16, a plurality of concave limit blocks 17, a plurality of convex limit blocks 18, a plurality of round limit blocks 19, a plurality of metal filter screens 20, a pair of rotating bearing blocks 21, a feeding valve 22, a discharging valve 23, a temperature control component and an auxiliary diversion component;

[0030] Specifically, the stirring support plate 12 is installed on the inner side of the S-type filter drainage box 7, the stirring drainage shaft tube 13 is inserted into the S-type filter drainage box 7 and the stirring support plate 12 through a bearing, the loading valve 22 and the unloading valve 23 are respectively installed on the upper and lower ends of the stirring drainage shaft tube 13 in the S-type filter drainage box 7, the loading valve 22 is connected to the butterfly valve, the S-type filter drainage box 7 is connected to the vacuum oil filter, the filter bracket 8 is installed on the inner side of the S-type filter drainage box 7, a plurality of the filter cylindrical tubes 9 are evenly inserted into the filter bracket 8, a plurality of the filter element tubes 10 are respectively mounted on a plurality of the filter cylindrical tubes 9, the stirring gear box 15 is mounted on the stirring drainage shaft tube 13, and the stirring drive The motor 11 is installed on the stirring gear box 15, the stirring membrane 14 is sleeved on the inner side of the stirring and drainage shaft tube 13, the rotating support cylindrical tube 16 is installed on the inner side of the S-type filter drainage box 7 through a pair of rotating bearing blocks 21, and a number of concave limit blocks 17 are evenly installed on the rotating support cylindrical tube 16 and the stirring and drainage shaft tube 13 respectively, a number of convex limit blocks 18 are respectively installed on both sides of a number of circular limit blocks 19, and a number of convex limit blocks 18 are movably inserted on the inner sides of a number of concave limit blocks 17 respectively, a number of metal filter meshes 20 are respectively installed on a number of circular limit blocks 19, the auxiliary diversion assembly is installed on the S-type filter box, and the temperature control assembly is installed on the inner side of the S-type filter box.

[0031] When in use, the inside of the S-type filter drainage box 7 is pumped through the vacuum oil filter box 2, so that negative pressure is generated inside the S-type filter drainage box 7, and the lubricating oil inside the oil storage tank 1 is drained to the inside of the S-type filter drainage box 7 through the negative pressure, and the lubricating oil is drained to the inside of the stirring and drainage shaft tube 13 inside the S-type filter drainage tube by opening the feeding valve 22, and the stirring driving machine 11 on the S-type filter drainage box 7 is operated to drive the stirring gear box 15 on the driving end of the stirring driving machine 11, and the stirring gear box 15 drives the stirring and drainage shaft tube 13 inside it, and the concave limiting block 17 on the stirring and drainage shaft tube 13 is driven, and the convex limiting block 18 on the round limiting block 19 is limited by the rotating support cylindrical tube 16 and the concave limiting block 17 on the stirring and drainage shaft tube 13, and the oil is drained to the S-type filter drainage box 7 through the metal filter mesh 20 inside the round limiting block 19 through the stirring and drainage shaft tube 13. The inner side of the oil filter 10 is filtered out by the metal filter 20 on the inner side of several rotating circular limit blocks 19, and the oil on the inner side of the stirring and drainage shaft tube 13 is preliminarily filtered through the stirring membrane 14 to filter out large particles, and the particles on the inner side of the stirring and drainage shaft tube 13 are filtered out through the discharge valve 23, and the oil is secondary filtered through the auxiliary diversion component, and the temperature of the secondary filtered oil is controlled by the temperature control component, and the convex limit block 18 and the concave limit block 17 are cooperated to achieve the rapid replacement of several circular limit blocks 19, so as to clean the metal filter 20, and the air on the inner side of the S-type filter drainage tube is drained through several filter cylindrical tubes 9 on the filter bracket 8, and the gas discharged from the filter cylindrical tube 9 is secondary filtered through the filter element tubes 10 on several filter cylindrical tubes 9, and the gas is discharged to the inner side of the filter bracket 8.

[0032] like Figure 1-5 As shown, the vacuum filtration structure includes: a W-shaped filter box 24, a filter inner box 25, filter carbon 26, filter cotton 27 and a plurality of filter limit plates 28;

[0033] Specifically, several of the filter limit plates 28 are evenly installed on the inner side of the W-shaped filter box 24, several of the filter limit plates 28 are respectively provided with several filter holes, and the filter holes on the several filter limit plates 28 are cross-arranged, the filter inner box 25 is installed on the inner side of the W-shaped filter box 24, and the filter carbon 26 and the filter cotton 27 are installed on the inner side of the filter inner box 25.

[0034] When in use, the dust in the air is filtered out through the cooperation of several filter limit plates 28 on the inner side of the W-shaped filter box 24, and the metal scraps in the air are filtered through the gap size between the several filter limit plates 28, and the dust and oil in the processing gas are filtered through the filter carbon 26 and filter cotton 27 on the inner side of the filter inner box 25.

[0035] like Figure 1-5 As shown, the temperature control component includes: a well-shaped electric heating network 29, a temperature sensor 30 and a plurality of drainage heating tubes 31;

[0036] Specifically, a plurality of drainage heating tubes 31 are evenly inserted into the filter bracket 8 , the temperature sensor 30 is installed at the connection between the S-type filter drainage box 7 and the vacuum oil filter, and the well-shaped electric heating network is mounted on a plurality of the drainage heating tubes 31 .

[0037] When in use, the oil filtered out of the auxiliary diversion component is heated by the well-shaped electric heating net 29, and the well-shaped electric heating net 29 is mounted on a plurality of drainage heating tubes 31, so that the well-shaped electric heating net 29 heats the plurality of drainage heating tubes 31, and the exhaust gas is heated and monitored by the temperature sensor 30.

[0038] like Figure 1-5 As shown, the auxiliary flow diversion component includes: a concave water collecting block 32, a flow unloading valve 33 and a liquid level sensor 34;

[0039] Specifically, the concave water collecting block 32 is inserted into the S-shaped filter drainage box 7 , the unloading valve 33 is installed on the concave water collecting block 32 , and the liquid level sensor 34 is installed on the concave water collecting block 32 .

[0040] When in use, the high-density liquid is collected into the concave water collecting block 32 through the density of the mixed liquid, and the density of the liquid inside the concave water collecting block 32 is monitored by the liquid level sensor 34 inside the concave water collecting block 32. The liquid level sensor 34 measures through buoyancy. At the same time, the liquid level sensor 34 is higher than the density of oil and lower than the density of water, thereby monitoring the liquid level of the water inside the concave water collecting block 32.

[0041] As a preferred solution, further, an alarm is provided on the concave water collecting block 32, and the optimization benefit is that the water inside the concave water collecting block 32 can be discharged through the alarm.

[0042] As a preferred solution, further, a liquid level meter is provided on the S-shaped filter drainage box 7.

[0043] As a preferred solution, further, pressure sensors are provided inside the S-type filter drainage box 7 and the W-type filter box 24 , and the optimization benefit is: monitoring the pressure inside the S-type filter drainage box 7 and the W-type filter box 24 .

[0044] As a preferred solution, further, an electrostatic emitter is provided on the stirring and drainage shaft tube 13, and the optimization benefit is that the particles inside the oil are magnetically adsorbed by the electrostatic emitter.

[0045] As a preferred solution, further, the S-shaped filter drainage box 7 is provided with an electrostatic drainage rod, and the optimization benefit is that the static electricity inside the oil is discharged through the electrostatic drainage rod.

[0046] As a preferred solution, further, the spacing between the plurality of filtering limiting plates 28 is 0.1 mm.

[0047] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A box-type transformer oil filling tool, comprising: An oil storage tank, a vacuum oil filter tank, a box-type transformer, a pair of check valves, a condenser, a vacuum gauge, a vacuum pump and a pair of butterfly valves, characterized in that a pair of the check valves are respectively installed on both sides of the box-type transformer, a pair of the butterfly valves are respectively installed on the oil storage tank and the vacuum pump, the vacuum oil filter tank is installed on the check valve on the oil storage tank, the vacuum oil filter tank is connected to the butterfly valve through an oil filtering structure, the condenser is installed on another butterfly valve, and the condenser is connected to the check valve on one side of the vacuum oil filter tank through a vacuum filtering structure, and the vacuum gauge is installed on the condenser; The oil filtering structure comprises: an S-shaped filter drainage box, a filter bracket, a plurality of filter cylindrical tubes, a plurality of filter element tubes, a stirring driver, a stirring support plate, a stirring drainage shaft tube, a stirring membrane, a stirring gear box, a rotating support cylindrical tube, a plurality of concave limit blocks, a plurality of convex limit blocks, a plurality of round limit blocks, a plurality of metal filter screens, a pair of rotating bearing blocks, a feeding valve, a discharging valve, a temperature control component and an auxiliary diversion component; The stirring support plate is installed on the inner side of the S-type filter drainage box, the stirring drainage shaft tube is inserted into the S-type filter drainage box and the stirring support plate through a bearing, the loading valve and the unloading valve are respectively installed on the upper and lower ends of the stirring drainage shaft tube in the S-type filter drainage box, the loading valve is connected to the butterfly valve, the S-type filter drainage box is connected to the vacuum filter oil box, the filter bracket is installed on the inner side of the S-type filter drainage box, a number of the filter cylindrical tubes are evenly inserted into the filter bracket, a number of the filter filter tubes are respectively mounted on a number of the filter cylindrical tubes, the stirring gear box is mounted on the stirring drainage shaft tube, and the stirring drive motor is installed on the inner side of the S-type filter drainage box. It is installed on the stirring gear box, the stirring membrane is sleeved on the inner side of the stirring and drainage shaft tube, the rotating support cylindrical tube is installed on the inner side of the S-type filter drainage box through a pair of rotating bearing blocks, and several concave limit blocks are evenly installed on the rotating support cylindrical tube and the stirring and drainage shaft tube respectively, several convex limit blocks are respectively installed on both sides of several round limit blocks, and several convex limit blocks are respectively movably inserted on the inner sides of several concave limit blocks, several metal filter meshes are respectively installed on several round limit blocks, the auxiliary diversion assembly is installed on the S-type filter drainage box, and the temperature control assembly is installed on the inner side of the S-type filter drainage box.

2. A box-change oil injection tool according to claim 1, characterized in that: The vacuum filtration structure comprises: a W-shaped filter box, a filter inner box, filter carbon, filter cotton and a plurality of filter limit plates; Several filter limit plates are evenly installed on the inner side of the W-shaped filter box, several filter limit plates are respectively provided with several filter holes, and the filter holes on several filter limit plates are cross-arranged, the filter inner box is installed on the inner side of the W-shaped filter box, and the filter carbon and the filter cotton are installed on the inner side of the filter inner box.

3. A box-change oil injection tool according to claim 2, characterized in that: The temperature control component includes: a well-shaped electric heating network, a temperature sensor and a plurality of drainage heating tubes; A plurality of drainage heating tubes are respectively and evenly inserted on the filter bracket, the temperature sensor is installed at the connection between the S-shaped filter drainage box and the vacuum oil filter box, and the well-shaped electric heating net is sleeved on a plurality of the drainage heating tubes.

4. A box-change oil injection tool according to claim 3, characterized in that: The auxiliary flow diversion component includes: a concave water collecting block, a flow unloading valve and a liquid level sensor; The concave water collecting block is inserted into the S-shaped filter drainage box, the unloading valve is installed on the concave water collecting block, and the liquid level sensor is installed on the concave water collecting block.

5. A box-change oil injection tool according to claim 4, characterized in that: An alarm is arranged on the concave water collecting block.

6. A box-change oil injection tool according to claim 5, characterized in that: The S-shaped filter drainage box is provided with a liquid level meter.

7. A box-change oil injection tool according to claim 6, characterized in that: Pressure sensors are arranged inside the S-type filter drainage box and the W-type filter box.

8. A box-change oil injection tool according to claim 7, characterized in that: The stirring and drainage shaft tube is provided with an electrostatic emitter.

9. A tank change oil injection tool according to claim 8, characterized in that: The S-shaped filtering and drainage box is provided with an electrostatic drainage rod.

10. A tank change oil injection tool according to claim 9, characterized in that: The spacing between the plurality of filtering limiting plates is 0.1 mm.

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