Transformer oil conservator
By using stainless steel material and limit rail strip structure in the transformer oil pillow, the rotary assist roller is fixed to reduce friction, and combined with the cooperation of the clamp seat and the positioning rod, the stable compression and reset of the corrugated inner core is achieved, and the external oil corrugated oil is solved The false oil problem caused by the wear of the pillow ensures the oil sealing and the stable operation of the equipment.
Patent Information
- Application Number
- CN202420681266.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-02
AI Technical Summary
When the external oil corrugated oil pillow is used for a long time, due to frequent contact between the roller and the cylinder wall, it will cause astringent as the temperature rises, resulting in serious wear of the roller, which will cause false oil in the inner cavity of the oil pillow.
A transformer oil pillow is designed, with the main oil seal, secondary oil seal and oil storage pipe made of stainless steel material. Combined with reinforcement pads, limit rail strips and auxiliary rollers, the reinforcement pads and limit rail strips are fixed by bolts. , the rotary roller is clamped on the inside of the limit track strip to reduce friction resistance, and through the coordination of the clamp seat and the positioning rod, the corrugated inner core can be achieved to avoid twisting and wear.
It effectively avoids corrugated inner core twisting and roller wear caused by rising oil temperature, prevents false oil problems in the inner cavity of the oil pillow, and ensures the sealing of the oil and the stable operation of the equipment.
Smart Images
Figure CN222281740U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to a transformer oil pillow. Background Art
[0002] The transformer oil pillow is used to create conditions for the thermal expansion and contraction of transformer oil. There are corrugated, capsule and diaphragm types. The main body of the oil pillow is a cylindrical container welded from steel plates, and its volume is about 10% of the oil tank volume. The oil pillow is installed horizontally on the top of the oil tank, and the oil inside is connected to the transformer oil tank through the connecting pipe of the gas relay, so that the oil level can rise and fall freely with the change of temperature.
[0003] At present, when the external oil corrugated oil pillow is used for a long time, as the oil temperature rises, the roller installed on the corrugated inner core frequently contacts the cylinder wall, and the roller will become stuck with the cylinder wall as the temperature rises. As the sticking problem worsens, it will cause greater wear of the roller. In severe cases, it will cause false oil problem in the inner cavity of the external oil corrugated oil pillow.
[0004] For the external oil corrugated oil pillow, how to avoid the problem of false oil in the inner cavity of the oil pillow due to roller wear is a technical difficulty that needs to be solved. Utility Model Content
[0005] The utility model aims to solve one of the technical problems existing in the prior art or related technology.
[0006] To this end, the technical solution adopted in this utility model is:
[0007] A transformer oil pillow comprises an oil pillow mechanism and a core mechanism installed in the oil pillow mechanism, wherein the oil pillow mechanism comprises a main oil seal cover, an oil storage pipe located at one end of the main oil seal cover, an auxiliary oil seal cover located at the other end of the oil storage pipe, a reinforcing pad installed in the inner cavity of the oil storage pipe, and two limit track bars fixedly installed on both sides of the reinforcing pad, and the core mechanism comprises a corrugated inner core installed in the auxiliary oil seal cover, a sealing end installed on the corrugated inner core and extending through the rod body outside the auxiliary oil seal cover, a telescopic mother tube installed in the corrugated inner core, a telescopic sub-rod movably installed in the telescopic mother tube, a clamp seat fixedly installed at the other end of the corrugated inner core, a positioning rod installed in the clamp seat, and two rotation-assisting rollers installed at both ends of the positioning rod.
[0008] In a preferred example, the utility model can be further configured as follows: the main oil seal cover, the auxiliary oil seal cover and the oil storage pipe are all made of stainless steel, and two rubber sealing rings are respectively connected to the annular grooves of the main oil seal cover and the auxiliary oil seal cover near the inner end of the oil storage pipe.
[0009] By adopting the above technical solution and utilizing the compressive strength of the combined main oil seal, auxiliary oil seal and oil storage pipe, the oil body can expand safely in the sealed cavity when the temperature rises, while the high-strength shell can also resist the pressure from the outside.
[0010] In a preferred example, the utility model can be further configured as follows: the inner wall of the oil storage pipe is provided with a rectangular groove adapted to fit the combined reinforcing pad and the two limiting track bars, and bolts are connected to the holes at both ends of the reinforcing pad.
[0011] By adopting the above technical solution, the reinforcing pad is fixedly installed in the rectangular groove of the inner wall of the oil storage pipe by bolts, and two limiting track bars are fixedly installed on both sides of the reinforcing pad. When the two auxiliary rollers are clamped on the inner sides of the two limiting track bars, when the oil expands due to temperature increase, the corrugated inner core constrained by multiple sets of clamps can be stably compressed and reset.
[0012] In a preferred example, the utility model can be further configured as follows: two slots are opened at one end of the corrugated inner core away from the clamping seat, and positioning bolts are connected in the slots.
[0013] By adopting the above technical solution, one end of the telescopic mother tube is fixedly installed in the corrugated inner core by using two positioning bolts. When the rod body at one end of the corrugated inner core passes through the auxiliary oil seal cover and is fixed by the sealing end head, the auxiliary oil seal cover and the sealing end head in a sealed state can detect the oil pressure.
[0014] In a preferred example, the utility model can be further configured as follows: a screw hole is provided at one end of the telescopic sub-rod away from the telescopic mother tube, and a gasket and a reinforcing bolt are connected to the middle of the corrugated inner core near one end of the telescopic sub-rod.
[0015] By adopting the above technical solution, the gasket is movably installed on the outside of the reinforcing bolt, and the reinforcing bolt is passed through the inside of the corrugated inner core until the reinforcing bolt is fixedly installed in the screw hole at one end of the telescopic sub-rod away from the telescopic mother tube.
[0016] In a preferred example, the utility model can be further configured as follows: the auxiliary rotation roller is made of solid stainless steel material, and an annular protrusion is provided on one end of the auxiliary rotation roller close to the inner side of the limiting track bar.
[0017] By adopting the above technical solution, two assisting rollers are installed at both ends of the positioning rod. When the two assisting rollers are clamped on the inner sides of the two limiting track bars and moved under pressure, the two adjacent limiting track bars can reduce the friction resistance for the two assisting rollers.
[0018] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:
[0019] 1. The utility model installs the corrugated inner core inside the auxiliary oil seal cover. At this time, the combined telescopic mother tube and telescopic sub-rod can provide correction for the compression and reset of the corrugated inner core. At the same time, multiple clamping seats fixedly installed on the end of the corrugated inner core away from the auxiliary oil seal cover can cooperate with the positioning rod and the auxiliary roller to stably stretch along the inner side of multiple groups of limit track strips, thereby avoiding the problem of distortion of the end of the corrugated inner core away from the auxiliary oil seal cover due to the increase of oil temperature, and further avoiding the problem of false oil inside the outer oil corrugated oil pillow. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the utility model when in use;
[0021] Figure 2 It is a dispersion schematic diagram of the utility model;
[0022] Figure 3 It is a dispersed schematic diagram of the oil pillow mechanism of the utility model;
[0023] Figure 4 It is a partial dispersed schematic diagram of the oil pillow mechanism of the utility model;
[0024] Figure 5 For this utility model Figure 4 The enlarged schematic diagram of point A in the middle;
[0025] Figure 6 It is a schematic diagram of the core mechanism of the utility model;
[0026] Figure 7 For this utility model Figure 6 A magnified schematic diagram of point B in the middle.
[0027] Reference numerals:
[0028] 100, oil pillow mechanism; 110, main oil seal cover; 120, auxiliary oil seal cover; 130, oil storage pipe; 140, reinforcement pad; 150, limit track strip;
[0029] 200, core body mechanism; 210, corrugated inner core; 220, sealing end; 230, telescopic mother tube; 240, telescopic sub-rod; 250, clamping seat; 260, positioning rod; 270, auxiliary roller. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.
[0031] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.
[0032] A transformer oil conservator provided by some embodiments of the utility model is described below in conjunction with the accompanying drawings.
[0033] Embodiment 1:
[0034] Combination Figure 1-Figure 7 As shown, the utility model provides a transformer oil pillow, which includes an oil pillow mechanism 100 and a core mechanism 200 installed in the oil pillow mechanism 100 .
[0035] The oil pillow mechanism 100 includes a main oil seal cover 110, a secondary oil seal cover 120, an oil storage pipe 130, a reinforcing pad 140 and a limiting track bar 150, and the core mechanism 200 includes a corrugated inner core 210, a sealing end 220, a telescopic mother tube 230, a telescopic sub-rod 240, a clamp seat 250, a positioning rod 260 and an auxiliary roller 270.
[0036] Specifically, the oil storage pipe 130 is located at one end of the main oil seal cover 110, the auxiliary oil seal cover 120 is located at the other end of the oil storage pipe 130, the reinforcing pad 140 is installed in the inner cavity of the oil storage pipe 130, two limiting track bars 150 are fixedly installed on both sides of the reinforcing pad 140, the corrugated inner core 210 is installed in the auxiliary oil seal cover 120, the sealing end head 220 is installed on the rod body of the corrugated inner core 210 that penetrates to the outside of the auxiliary oil seal cover 120, the telescopic mother tube 230 is installed inside the corrugated inner core 210, the telescopic sub-rod 240 is movably installed in the telescopic mother tube 230, the clamp seat 250 is fixedly installed at the other end of the corrugated inner core 210, the positioning rod 260 is installed in the clamp seat 250, and two auxiliary rollers 270 are installed at both ends of the positioning rod 260.
[0037] The combined reinforcing pad 140 and the limiting track bar 150 are fixedly installed in the grooves of the inner wall of the oil storage pipe 130 by using multiple sets of bolts, and the two limiting track bars 150 fixedly installed on both sides of the reinforcing pad 140 can provide a stable bearing platform for the two auxiliary rollers 270. Then, the outer end of the telescopic sub-rod 240 is fixedly installed on the inner wall of one end of the corrugated inner core 210 by using a sealing gasket and bolts. When the corrugated inner core 210 is installed in the auxiliary oil seal cover 120, the combined telescopic mother tube 230 and the telescopic sub-rod 240 can provide correction for the compression and resetting of the corrugated inner core 210 to avoid the problem of twisting of the end of the corrugated inner core 210 away from the auxiliary oil seal cover 120 due to the increase in oil temperature. At the same time, the multiple clamp seats 250 fixedly installed on the end of the corrugated inner core 210 away from the auxiliary oil seal cover 120 can cooperate with the positioning rod 260 and the auxiliary roller 270 to stably extend along the inner side of the multiple sets of limiting track bars 150. At this time, the device can avoid the problem of false oil appearing inside the outer oil corrugated oil pillow due to wear of the existing rollers.
[0038] Embodiment 2:
[0039] Combination Figure 2-Figure 7 As shown, on the basis of Example 1, the main oil seal cover 110, the auxiliary oil seal cover 120 and the oil storage pipe 130 are all made of stainless steel, and two rubber sealing rings are respectively connected to the annular grooves of the main oil seal cover 110 and the auxiliary oil seal cover 120 near the inner end of the oil storage pipe 130, and the inner wall of the oil storage pipe 130 is provided with a rectangular groove suitable for the combined reinforcing pad 140 and the two limiting track bars 150, and bolts are connected to the holes at both ends of the reinforcing pad 140.
[0040] By utilizing the compressive strength of the combined main oil seal cover 110, the auxiliary oil seal cover 120 and the oil storage pipe 130, the reinforcing pad 140 is fixedly installed in the rectangular groove of the inner wall of the oil storage pipe 130 with bolts, and two limiting track bars 150 are fixedly installed on both sides of the reinforcing pad 140. When the two auxiliary rollers 270 are clamped on the inner sides of the two limiting track bars 150, when the temperature rises, the oil body will expand safely in the sealed cavity. At the same time, the high-strength shell can also resist the pressure brought by the outside world, thereby ensuring the safety of equipment operation. At the same time, the corrugated inner core 210 constrained by multiple sets of clamps 250 can be stably compressed and reset, thereby avoiding the problem of jamming caused by wear of the existing roller guide.
[0041] Embodiment three:
[0042] Combination Figure 4-Figure 7 As shown, on the basis of Example 1, two slots are opened at the end of the corrugated inner core 210 away from the clamp seat 250, and positioning bolts are connected in the slots, a screw hole is opened at the end of the telescopic sub-rod 240 away from the telescopic mother tube 230, and a gasket and a reinforcing bolt are connected to the middle of the end of the corrugated inner core 210 close to the telescopic sub-rod 240, the auxiliary roller 270 is made of solid stainless steel material, and an annular protrusion is opened on the end of the auxiliary roller 270 close to the inner side of the limiting track bar 150.
[0043] One end of the telescopic mother tube 230 is fixedly installed in the corrugated inner core 210 by two positioning bolts. When the rod body at one end of the corrugated inner core 210 penetrates into the auxiliary oil seal cover 120 and is fixed by the sealing end head 220, the auxiliary oil seal cover 120 and the sealing end head 220 in a sealed state can detect the oil pressure, and the reinforcing bolt is penetrated into the interior of the corrugated inner core 210 until the reinforcing bolt is fixedly installed at the end of the telescopic sub-rod 240 away from the telescopic mother tube 230. In the screw hole, when the oil body expands and squeezes the corrugated inner core 210, the horizontally placed telescopic mother tube 230 and the telescopic sub-rod 240 can provide stability support for the compression and extension of the corrugated inner core 210. As the two auxiliary rotation rollers 270 are clamped on the inner sides of the two limiting track bars 150 and move under pressure, the two adjacent limiting track bars 150 can reduce the friction resistance of the two auxiliary rotation rollers 270 while correctly guiding the compression and extension of the corrugated inner core 210.
[0044] The working principle and use process of the utility model are as follows: a plurality of clamping seats 250 are fixedly installed at one end of the corrugated inner core 210 in advance, and a positioning rod 260 is installed inside the clamping seat 250, and two auxiliary rotation rollers 270 are installed at both ends of the positioning rod 260, and then the outer end of the telescopic sub-rod 240 is fixed in the corrugated inner core 210 by bolts and gaskets, and the end of the telescopic mother tube 230 away from the telescopic sub-rod 240 will penetrate into the hole at the other end of the corrugated inner core 210, at this time, the end of the telescopic mother tube 230 that penetrates into the corrugated inner core 210 is fixed by two bolts, at this time, the combined corrugated inner core 210 will cooperate with the sealing end head 220 to be fixedly installed in the auxiliary oil seal cover 120, and the main oil seal cover 110 and the auxiliary oil seal cover 120 will be fixedly installed at both ends of the oil storage pipe 130 by multiple groups of bolts, and the combined plurality of auxiliary rotation rollers 270 will be adapted to be clamped on the inner side of the limiting track bar 150;
[0045] During use, as the oil heats up and expands in volume, the corrugated inner core 210 will be compressed and then move toward the inner cavity of the auxiliary oil seal cover 120. When the oil level is too high, the corrugated inner core 210 will be compressed to a certain extent and an alarm will be sounded, which will be displayed by an oil level gauge installed on the outside of the auxiliary oil seal cover 120. At the same time, multiple clamping seats 250 installed at the other end of the corrugated inner core 210 can cooperate with the positioning rod 260 and multiple auxiliary rollers 270 to clamp the multiple groups of limit track strips 150. As the corrugated inner core 210 is compressed and reset, the multiple groups of auxiliary rollers 270 will move stably along the inner side of the multiple groups of limit track strips 150, thereby avoiding the existing rollers from wearing out due to frequent rolling on the cylinder wall, which will lead to the problem of false oil and jamming between the inner wall of the oil storage pipe 130 and the corrugated inner core 210 due to roller wear.
[0046] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A transformer oil conservator, characterized in that: It comprises an oil pillow mechanism (100) and a core mechanism (200) installed in the oil pillow mechanism (100); The oil pillow mechanism (100) comprises a main oil seal cover (110), an oil storage pipe (130) located at one end of the main oil seal cover (110), a secondary oil seal cover (120) located at the other end of the oil storage pipe (130), a reinforcing pad (140) installed in the inner cavity of the oil storage pipe (130), and two limiting track bars (150) fixedly installed on both sides of the reinforcing pad (140); The core mechanism (200) comprises a corrugated inner core (210) installed in the auxiliary oil seal cover (120), a sealing end head (220) installed on the corrugated inner core (210) and extending through the corrugated inner core (210) to the outer rod body of the auxiliary oil seal cover (120), a telescopic mother tube (230) installed inside the corrugated inner core (210), a telescopic sub-rod (240) movably installed in the telescopic mother tube (230), a clamping seat (250) fixedly installed at the other end of the corrugated inner core (210), a positioning rod (260) installed in the clamping seat (250), and two rotation-assisting rollers (270) installed at both ends of the positioning rod (260).
2. A transformer oil conservator according to claim 1, characterized in that: The main oil seal cover (110), the auxiliary oil seal cover (120) and the oil storage pipe (130) are all made of stainless steel, and two rubber sealing rings are respectively connected to the annular grooves of the main oil seal cover (110) and the auxiliary oil seal cover (120) near the inner end of the oil storage pipe (130).
3. The transformer oil conservator according to claim 1, characterized in that: The inner wall of the oil storage pipe (130) is provided with a rectangular groove adapted to fit the combined reinforcing pad (140) and the two limiting track bars (150), and bolts are connected to the holes at both ends of the reinforcing pad (140).
4. The transformer oil conservator according to claim 1, characterized in that: Two slots are formed at one end of the corrugated inner core (210) away from the clamping seat (250), and positioning bolts are connected in the slots.
5. The transformer oil conservator according to claim 1, characterized in that: A screw hole is provided at one end of the telescopic sub-rod (240) away from the telescopic mother tube (230), and a gasket and a reinforcing bolt are connected to the middle of the corrugated inner core (210) close to one end of the telescopic sub-rod (240).
6. The transformer oil conservator according to claim 1, characterized in that: The rotation-assisting roller (270) is made of solid stainless steel material, and an annular protrusion is provided on one end of the rotation-assisting roller (270) close to the inner side of the limiting track bar (150).