CN113451008B - Oil-immersed transformer based on cooling protection device - Google Patents
Oil-immersed transformer based on cooling protection device Download PDFInfo
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- CN113451008B CN113451008B CN202111009789.3A CN202111009789A CN113451008B CN 113451008 B CN113451008 B CN 113451008B CN 202111009789 A CN202111009789 A CN 202111009789A CN 113451008 B CN113451008 B CN 113451008B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
Abstract
The invention discloses an oil-immersed transformer based on a cooling protection device, which comprises an outer metal shell of the transformer, wherein an upper end plate is fixedly welded at the upper end of the outer metal shell of the transformer, a fixed plate is fixedly welded at one side of the upper end surface of the upper end plate, circular grooves are fixedly formed in two sides of the fixed plate, metal end caps are fixedly placed in the circular grooves, plug pins are fixedly welded at the lower ends of the metal end caps, installation cavities are fixedly formed in two sides below two sides of the plug pins, a small stretching spring is fixedly welded at one end inside the installation cavity, a limiting clamping block is fixedly welded at one side of the small stretching spring, a limiting block is fixedly welded at the outer side inside the installation cavity, and limiting clamping grooves are fixedly formed in the surfaces of two sides of the lower end of the plug pins. The oil-immersed transformer insulating cooling oil can be effectively and quickly replaced, and can be quickly disassembled and assembled when the oil injection metal nozzle is damaged.
Description
Technical Field
The invention relates to the technical field of oil-immersed transformers, in particular to an oil-immersed transformer based on a cooling protection device.
Background
With the rapid development of social economy, a distribution transformer is one of important devices in power supply and distribution systems of industrial and mining enterprises and civil buildings, and an oil immersed transformer is widely popularized due to the characteristics of excellent performance and low price.
However, the inside insulating cooling oil of current oil-immersed transformer can't carry out effective and quick change mostly, and this makes insulating cooling oil be perishable in the transformer is inside for a long time, and its cooling and insulating effect can very big reduction to lead to the reduction of the whole work efficiency of transformer.
Disclosure of Invention
The invention aims to provide an oil-immersed transformer based on a cooling protection device, and the oil-immersed transformer is used for solving the problems that most of insulating cooling oil in the oil-immersed transformer in the background technology cannot be effectively and quickly replaced, so that the insulating cooling oil is easy to deteriorate in the transformer for a long time, the cooling and insulating effects are greatly reduced, and the overall working efficiency of the transformer is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: an oil-immersed transformer based on a cooling protection device comprises an outer metal shell of the transformer, wherein a lower end plate is fixedly welded on the end surface of the lower end of the outer metal shell of the transformer, an oil storage cavity is fixedly arranged in the outer metal shell of the transformer, a cylindrical barrel is fixedly arranged on one side of the lower end plate, a movable sealing cover is movably arranged at the upper end of the cylindrical barrel, a push rod is fixedly arranged at the lower end of the cylindrical barrel, a movable short shaft is fixedly arranged on one side of the lower end of the push rod, a movable connecting rod is movably arranged at the front end outside the movable short shaft, a fixed Z-shaped block is fixedly welded at the lower end of one side of the outer surface of the cylindrical barrel, a fixed connecting plate is fixedly welded at the front side of the lower end of the fixed Z-shaped block, a movable long shaft is movably arranged at the front end of the fixed connecting plate in a penetrating manner, a clamping ring plate is fixedly welded at the upper end in the cylindrical barrel, and a clamping type sealing groove is fixedly arranged outside the clamping ring plate, the periphery of the lower end of the movable sealing cover is fixedly welded with a sealing ring block, and a sealing ring is arranged at the bottom end inside the clamping type sealing groove.
Preferably, promote including connecting to piece, holding post, fixed board, spliced pole, the fixed welding in upper end of connecting to the piece has the holding post, the fixed welding in upper end of holding post has fixed board, the fixed welding in the middle of fixed board upper end has the spliced pole, the fixed welding all around of spliced pole has heavy spring that stretches, the inboard of a cylinder section of thick bamboo is fixed and is provided with the chamber that flows, the fixed welding in the top of the intracavity portion that flows has and supports the clamping ring board, support and pass through heavy spring fixed weld connection that stretches between the board, the spliced pole activity is located the inboard of heavy spring that stretches, pass through welded fixed connection between the lower extreme of sealed movable cover and the spliced pole.
Preferably, the activity connecting rod includes activity handle, connecting block, fly leaf, the fixed welding of rear end of activity handle has the connecting block, the fixed welding of rear end of connecting block has the fly leaf, the centre department of fly leaf rear side runs through and is provided with the activity hole, activity minor axis activity is located the activity hole, through activity hole swing joint between catch bar and the fly leaf, the centre department of connecting block both sides runs through and is provided with the connecting hole, activity major axis activity is located the connecting hole, through activity major axis activity through connection between fixed connection board and the connecting block.
Preferably, the lower end of the movable sealing cover is fixedly connected with the sealing ring block through welding, and the sealing ring block is clamped in the clamping type sealing groove.
Preferably, fixed welding all around of transformer outer metal casing below has rigid plastic support frame, the fixed cooler that is provided with in inboard below of rigid plastic support frame, the fixed force pump that is provided with of middle department of cooler upper end, one side of force pump is fixed and is provided with the oil outlet hose, there is insulating cooling oil storage intracavity portion.
Preferably, the cooler is fixedly connected with the pressure pump through an oil outlet hose, an oil outlet pipe is fixedly arranged on the other side of the pressure pump, and the inner wall of the oil storage cavity in the outer metal shell of the transformer is fixedly connected with the pressure pump through the oil outlet pipe.
Preferably, the upper end of the outer metal shell of the transformer is fixedly welded with an upper end plate, the upper end plate is provided with an oil injection metal nozzle, a fixing plate is fixedly arranged on one side of the upper end face of the upper end plate, the oil injection metal nozzle is fixed in the middle of the fixing plate, an insertion circular groove is arranged in a penetrating mode on one side of the upper end plate, the lower end of the oil injection metal nozzle is inserted into the insertion circular groove, and the fixing plate and the oil injection metal nozzle are fixedly connected through welding.
Preferably, the both sides of fixed plate are all fixed and are provided with round recess, the metal end cap has been placed to round recess internal fixation, the fixed welding of lower extreme of metal end cap has the cartridge round pin, the both sides of the both sides below of cartridge round pin are all fixed and are provided with the installation cavity, the fixed welding of the inside one end of installation cavity has small-size spring that stretches, the fixed welding in one side of small-size spring that stretches has spacing fixture block, the fixed welding in the outside of the inside of installation cavity has the stopper, the both sides surface of cartridge round pin lower extreme is all fixed and is provided with spacing draw-in groove.
Preferably, a round through hole is formed in the middle of the limiting block in a penetrating mode, and the limiting clamping block is movably located in the round through hole.
Preferably, one end face of the limiting clamping block is fixedly welded and connected with one side inside the mounting cavity through a small-sized extension spring, and the other end of the limiting clamping block is clamped into a limiting clamping groove on the plug pin; the middle of the lower end in the circular groove is provided with a cylindrical deep groove in a penetrating mode, and the inserting pin is inserted into the cylindrical deep groove.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention makes one end of the movable connecting rod move downwards by pressing the movable connecting rod, the movable long shaft is movably arranged in the middle of the movable connecting rod and fixedly connected with the fixed connecting plate, the movable connecting rod rotates around the movable long shaft by the rotation and the movement of the movable long shaft, and then the rear end of the movable connecting rod moves upwards to drive the push rod to move upwards, at the moment, the sealing movable cover fixedly welded on the push rod also moves upwards, the sealing ring block at the lower end of the sealing movable cover can be separated from the clamping type sealing groove, so that the sealing effect on the internal insulating cooling oil is relieved, the insulating cooling oil flows out along the flow cavity in the cylindrical barrel, the pressing ring plate is fixedly welded on the inner side of the flow cavity, the lower end of the pressing ring plate is fixedly welded and connected with the fixed pressing plate by a heavy type extension spring, when the movable handle on the movable connecting rod is loosened, the push rod integrally moves downwards due to the stretching elasticity of the heavy stretching spring, so that the sealing ring block at the lower end of the sealing movable cover is inserted into the clamping type sealing groove, the lower end face of the sealing ring block is fixedly matched with the sealing ring, and the insulating cooling oil in the oil storage cavity is automatically sealed again;
2. the invention can lead the oiling metal nozzle to be fixedly welded and connected with the fixing plate through inserting and installing the oiling metal nozzle at one side of the upper end plate, lead the inserting pin to be inserted into the cylindrical deep groove in the cylindrical groove through arranging the circular grooves at the two sides of the fixing plate in a penetrating way, lead the inserting pin to be fixedly matched with the cylindrical deep groove, greatly improve the matching and fixing effect between the fixing plate and the upper end plate, lead one end of the limiting clamping block to be clamped and installed in the limiting clamping groove at the upper end of the inserting pin through fixedly arranging the installing cavity at the two sides of the lower end of the inserting pin and fixedly welding the small-sized stretching spring in the installing cavity, lead the limiting clamping block welded at one side to have the trend of moving outwards through the stretching elasticity of the small-sized stretching spring, lead one end of the limiting clamping block to be clamped and installed in the limiting clamping groove at the upper end of the inserting pin, and fixing effect on the inserting pin can be greatly improved through the abutting and pressing between the two limiting clamping blocks, the problem of can't carry out quick disassembling and installation when oiling metal nozzle damages is solved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged front cut-away view taken at A of FIG. 1 of the present invention as a whole;
FIG. 3 is an enlarged cutaway view of FIG. 2 at B of the present invention;
FIG. 4 is a perspective cutaway view of the present invention;
FIG. 5 is an enlarged perspective view taken at C of FIG. 4 in accordance with the present invention;
FIG. 6 is an enlarged sectional side view taken at C of FIG. 4 in accordance with the present invention;
fig. 7 is an enlarged cutaway view of the invention at D in fig. 6.
In the figure: 1. a transformer outer metal shell; 2. a rigid plastic support frame; 3. an oil outlet hose; 4. a cooler; 5. a fixing plate; 6. an oil storage chamber; 7. a push rod; 701. connecting the resisting blocks; 702. a support post; 703. fixing the abutting plate; 704. connecting columns; 8. sealing the movable cover; 9. a movable connecting rod; 901. a movable handle; 902. connecting blocks; 903. a movable plate; 10. fixing a Z-shaped block; 11. fixing the connecting plate; 12. a movable long shaft; 13. a movable short shaft; 14. a cylindrical barrel; 15. an upper end plate; 16. a flow chamber; 17. a heavy duty extension spring; 18. a clamping type sealing groove; 19. a sealing ring block; 20. a seal ring; 21. clamping a ring plate; 22. pressing the ring plate; 23. oiling a metal nozzle; 24. inserting a pin; 25. a circular groove; 26. a mounting cavity; 27. a small extension spring; 28. a limiting clamping block; 29. a limiting block; 30. a limiting clamping groove; 31. a lower end plate; 32. a pressure pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 7, an embodiment of the present invention includes: an oil-immersed transformer based on a cooling protection device comprises an outer metal shell 1 of the transformer, a lower end plate 31 is fixedly welded on the end face of the lower end of the outer metal shell 1 of the transformer, an oil storage cavity 6 is fixedly arranged in the outer metal shell 1 of the transformer, a cylindrical barrel 14 is fixedly arranged on one side of the lower end plate 31, a movable sealing cover 8 is movably arranged on the upper end of the cylindrical barrel 14, a push rod 7 is fixedly arranged on the lower end of the cylindrical barrel 14, a movable short shaft 13 is fixedly arranged on one side of the lower end of the push rod 7, a movable connecting rod 9 is movably arranged at the front end outside the movable short shaft 13, a fixed Z-shaped block 10 is fixedly welded on the lower end of one side of the outer surface of the cylindrical barrel 14, a fixed connecting plate 11 is fixedly welded on the front side of the lower end of the fixed Z-shaped block 10, a movable long shaft 12 is movably arranged at the front end of the fixed connecting plate 11, a clamping ring plate 21 is fixedly welded on the upper end in the cylindrical barrel 14, and a sealing groove 18 is fixedly arranged on the outer side of the clamping ring plate 21, the periphery of the lower end of the movable sealing cover 8 is fixedly welded with a sealing ring block 19, and the bottom end inside the clamping type sealing groove 18 is fixedly provided with a sealing ring 20.
Further, the push rod 7 comprises a connecting abutting block 701, a connecting column 702, a fixed abutting plate 703 and a connecting column 704, the upper end of the connecting abutting block 701 is fixedly welded with the connecting column 702, the upper end of the connecting column 702 is fixedly welded with the fixed abutting plate 703, the middle of the upper end of the fixed abutting plate 703 is fixedly welded with the connecting column 704, heavy extension springs 17 are fixedly welded around the connecting column 704, a flow cavity 16 is fixedly arranged on the inner side of the cylindrical barrel 14, a pressing ring plate 22 is fixedly welded above the flow cavity 16, the lower end of the pressing ring plate 22 is fixedly welded with the fixed abutting plate 703 through the heavy extension springs 17, the connecting column 704 is movably located on the inner side of the heavy extension springs 17, the lower end of the movable sealing cover 8 is fixedly welded with the connecting column 704, and the heavy extension springs 17 can greatly improve the downward pulling effect of the movable sealing cover 8.
Further, the movable connecting rod 9 comprises a movable handle 901, a connecting block 902 and a movable plate 903, the connecting block 902 is fixedly welded at the rear end of the movable handle 901, the movable plate 903 is fixedly welded at the rear end of the connecting block 902, a movable hole is formed in the middle of the rear side of the movable plate 903 in a penetrating mode, the movable short shaft 13 is movably located in the movable hole, the push rod 7 is movably connected with the movable plate 903 in a penetrating mode through the movable hole, connecting holes are formed in the middle of two sides of the connecting block 902 in a penetrating mode, the movable long shaft 12 is movably located in the connecting hole, the fixed connecting plate 11 is movably connected with the connecting block 902 in a penetrating mode through the movable long shaft 12, and the movable long shaft 12 and the movable short shaft 13 all improve the rotary activity of the movable connecting rod 9.
Further, the lower end of the movable sealing cover 8 is fixedly connected with the sealing ring block 19 through welding, the sealing ring block 19 is clamped in the clamping type sealing groove 18, and the sealing ring block 19 and the clamping type sealing groove 18 are favorable for improving the sealing effect of insulating cooling oil in the oil storage cavity 6.
Further, fixed welding all around of 1 below of transformer outer metal casing has rigid plastic support frame 2, and the fixed cooler 4 that is provided with in 2 inboard belows of rigid plastic support frame, the fixed force pump 32 that is provided with in middle department of the 4 upper ends of cooler, the fixed oil outlet hose 3 that is provided with in one side of force pump 32, there is insulating coolant oil in the 6 inside oil storage chambeies, and force pump 32 can be so that the insulating coolant oil in 6 inside oil storage chambeies flows into in the cooler 4.
Further, the cooler 4 and the pressure pump 32 are fixedly connected through an oil outlet hose 3, an oil outlet pipe is fixedly arranged on the other side of the pressure pump 32, and the inner wall of the oil storage cavity 6 in the transformer outer metal shell 1 and the pressure pump 32 are fixedly connected through the oil outlet pipe.
Further, the upper end of the transformer outer metal shell 1 is fixedly welded with the upper end plate 15, one side of the upper end face of the upper end plate 15 is fixedly welded with the fixing plate 5, the oil injection metal nozzle 23 is fixed in the middle of the fixing plate 5, one side of the upper end plate 15 is provided with a cartridge circular groove in a penetrating mode, the lower end of the oil injection metal nozzle 23 is inserted into the cartridge circular groove, the fixing plate 5 is fixedly connected with the oil injection metal nozzle 23 through welding, and the cartridge circular groove can further improve the fixing performance of the oil injection metal nozzle 23.
The both sides of fixed plate 5 are all fixed and are provided with round recess 25, the metal end cap has been placed to round recess 25 internal fixation, the lower extreme fixed welding of metal end cap has cartridge round pin 24, the both sides of cartridge round pin 24's both sides below are all fixed and are provided with installation cavity 26, the fixed welding of the inside one end of installation cavity 26 has small-size extension spring 27, the fixed welding of one side of small-size extension spring 27 has spacing fixture block 28, the fixed welding in the outside of the inside of installation cavity 26 has stopper 29, the both sides surface of 24 lower extremes of cartridge round pin is all fixed and is provided with spacing draw-in groove 30.
Furthermore, the limiting block 29 is fixedly arranged on one side inside the mounting cavity 26, a circular through hole penetrates through the middle of the limiting block 29, the limiting fixture block 28 is movably arranged in the circular through hole, and the activity of the limiting fixture block 28 can be further improved through the circular through hole in the middle of the limiting block 29.
Furthermore, one end face of the limiting fixture block 28 is fixedly welded to one side inside the mounting cavity 26 through the small-sized extension spring 27, the other end of the limiting fixture block 28 is clamped into the limiting fixture groove 30 on the plug-in pin 24, and the small-sized extension spring 27 is favorable for transverse movement of the limiting fixture block 28.
Further, a cylindrical deep groove is formed in the middle of the lower end of the inner portion of the circular groove 25 in a penetrating mode, the insertion pin 24 is inserted into the cylindrical deep groove, and the cylindrical deep groove can improve the fixing effect on the insertion pin 24.
Furthermore, when in use, if the insulating cooling oil in the oil storage cavity 6 in the metal shell 1 outside the transformer is led out and replaced, the worker presses the movable link 9 first, and by pressing the movable link 9, one end of the movable link 9 moves downward, by movably arranging the movable long shaft 12 in the middle of the movable connecting rod 9, the movable long shaft 12 is fixedly connected with the fixed connecting plate 11, through the rotary movement of the movable long shaft 12, the movable connecting rod 9 rotates around the movable long shaft 12, the rear end of the movable connecting rod 9 moves upwards to drive the push rod 7 to move upwards, at the moment, a sealing ring block 19 on a sealing movable cover 8 fixedly welded on the push rod 7 can be separated from a clamping type sealing groove 18, thereby releasing the sealing function of the internal insulating cooling oil, which enables the insulating cooling oil to rapidly flow out from the flow cavity 16 in the cylindrical barrel 14;
by fixedly welding the abutting ring plate 22 on the inner side of the flow cavity 16 and fixedly welding the lower end of the abutting ring plate 22 and the fixed abutting plate 703 through the heavy type extension spring 17, when the movable handle 901 on the movable connecting rod 9 is loosened, the push rod 7 integrally moves downwards due to the extension elasticity of the heavy type extension spring 17, so that the sealing ring block 19 at the lower end of the sealing movable cover 8 is inserted into the clamping type sealing groove 18, the insulating cooling oil is fixedly matched between the lower end surface of the sealing ring block 19 and the sealing ring 20, the insulating cooling oil in the oil storage cavity 6 is automatically sealed again, and when old insulating cooling oil in the oil storage cavity 6 completely flows out from the flow cavity 16, new insulating cooling oil can be injected from the oil injection metal nozzle 23; an oil injection metal nozzle 23 is inserted into one side of the upper end plate 15, so that the oil injection metal nozzle 23 and the fixing plate 5 can be fixedly welded;
the round grooves 25 are arranged on two sides of the fixing plate 5 in a penetrating manner, so that the plug-in pins 24 can be inserted into the cylindrical deep grooves in the round grooves 25, the fixing and matching between the plug-in pins 24 and the cylindrical deep grooves can be greatly improved, the matching and fixing effects between the fixing plate 5 and the upper end plate 15 can be greatly improved by fixedly arranging the mounting cavities 26 on two sides in the lower end of the plug-in pins 24, the small-sized extension springs 27 are fixedly welded in the mounting cavities 26, the limit fixture blocks 28 welded on one side can move towards the outer side through the extension elasticity of the small-sized extension springs 27, one ends of the limit fixture blocks 28 can be clamped and mounted in the limit clamping grooves 30 at the upper end of the plug-in pins 24, the limit fixing effects on the plug-in pins 24 can be greatly improved by the abutting between the two limit fixture blocks 28, the plug-in pins 24 are pulled out by force, and the plug-in pins 24 can be quickly pulled out from the round grooves 25, thereby quickly releasing the spacing between the fixing plate 5 and the upper end plate 15 by the plug pins 24.
Claims (7)
1. The utility model provides an oil-immersed transformer based on cooling protection device, includes transformer outer metal casing (1), its characterized in that: the end face of the lower end of the outer metal shell (1) of the transformer is fixedly welded with a lower end plate (31), an oil storage cavity (6) is fixedly arranged in the outer metal shell (1) of the transformer, one side of the lower end plate (31) is fixedly provided with a cylindrical barrel (14), the upper end of the cylindrical barrel (14) is movably provided with a sealing movable cover (8), the lower end of the cylindrical barrel (14) is fixedly provided with a push rod (7), one side of the lower end of the push rod (7) is fixedly provided with a movable short shaft (13), the front end of the outer side of the movable short shaft (13) is movably provided with a movable connecting rod (9), the lower end of one side of the outer surface of the cylindrical barrel (14) is fixedly welded with a fixed Z-shaped block (10), the front side of the lower end of the fixed Z-shaped block (10) is fixedly welded with a fixed connecting plate (11), and the front end of the fixed connecting plate (11) is movably provided with a movable long shaft (12) in a penetrating manner, a clamping ring plate (21) is fixedly welded at the upper end inside the cylindrical barrel (14), a clamping type sealing groove (18) is fixedly arranged on the outer side of the clamping ring plate (21), a sealing ring block (19) is fixedly welded around the lower end of the sealing movable cover (8), and a sealing ring (20) is arranged at the bottom end inside the clamping type sealing groove (18);
the push rod (7) comprises a connecting resisting block (701), a bearing column (702), a fixed resisting plate (703) and a connecting column (704), the upper end of the connecting abutting block (701) is fixedly welded with a bearing column (702), the upper end of the bearing column (702) is fixedly welded with a fixed abutting plate (703), a connecting column (704) is fixedly welded in the middle of the upper end of the fixed resisting plate (703), heavy extension springs (17) are fixedly welded around the connecting column (704), a flow cavity (16) is fixedly arranged on the inner side of the cylindrical barrel (14), a pressing ring plate (22) is fixedly welded on the upper part inside the flow cavity (16), the lower end of the pressing ring plate (22) is fixedly welded with the fixed pressing plate (703) through a heavy type extension spring (17), the connecting column (704) is movably positioned at the inner side of the heavy-duty extension spring (17), the lower end of the sealing movable cover (8) is fixedly connected with the connecting column (704) through welding;
the movable connecting rod (9) comprises a movable handle (901), a connecting block (902) and a movable plate (903), the connecting block (902) is fixedly welded at the rear end of the movable handle (901), the movable plate (903) is fixedly welded at the rear end of the connecting block (902), a movable hole is formed in the middle of the rear side of the movable plate (903) in a penetrating mode, the movable short shaft (13) is movably located in the movable hole, the push rod (7) is movably connected with the movable plate (903) through the movable hole, a connecting hole is formed in the middle of two sides of the connecting block (902) in a penetrating mode, the movable long shaft (12) is movably located in the connecting hole, and the fixed connecting plate (11) is movably connected with the connecting block (902) in a penetrating mode through the movable long shaft (12);
the lower end of the sealing movable cover (8) is fixedly connected with the sealing ring block (19) through welding, and the sealing ring block (19) is clamped in the clamping type sealing groove (18).
2. The oil-immersed transformer based on the cooling protection device according to claim 1, characterized in that: fixed welding all around of transformer outer metal casing (1) below has rigid plastic support frame (2), the fixed cooler (4) that is provided with in inboard below of rigid plastic support frame (2), the fixed force pump (32) that is provided with of centre department of cooler (4) upper end, one side of force pump (32) is fixed and is provided with oil outlet hose (3), there is insulating cooling oil storage chamber (6) inside.
3. An oil-filled transformer based on a cooling protection device according to claim 2, characterized in that: through oil outlet hose (3) fixed connection between cooler (4) and force pump (32), the fixed oil pipe that is provided with of opposite side of force pump (32), through oil pipe fixed connection between oil storage chamber (6) inner wall in transformer outer metal casing (1) and force pump (32).
4. The oil-immersed transformer based on the cooling protection device according to claim 1, characterized in that: the fixed welding in upper end of transformer outer metal casing (1) has upper end plate (15), fixed being equipped with fixed plate (5) in one side of upper end plate (15) up end, the fixed welding in middle department of fixed plate (5) has oiling metal nozzle (23) one side of upper end plate (15) upper end is run through and is provided with the cartridge circular slot, the lower extreme of oiling metal nozzle (23) inserts and is located the cartridge circular slot, through welded fastening connection between fixed plate (5) and oiling metal nozzle (23).
5. An oil-filled transformer based on a cooling protection device according to claim 4, characterized in that: the both sides of fixed plate (5) are all fixed and are provided with circle recess (25), the metal end cap has been placed to circle recess (25) internal fixation, the lower extreme fixed weld of metal end cap has cartridge round pin (24), the both sides of the both sides below of cartridge round pin (24) are all fixed and are provided with installation cavity (26), the fixed welding of the inside one end of installation cavity (26) has small-size spring (27) of stretching, the fixed welding in one side of small-size spring (27) of stretching has spacing fixture block (28), the fixed welding in the outside of the inside of installation cavity (26) has stopper (29), the both sides surface of cartridge round pin (24) lower extreme is all fixed and is provided with spacing draw-in groove (30).
6. An oil-filled transformer based on a cooling protection device according to claim 5, characterized in that: the middle of the limiting block (29) is provided with a circular through hole in a penetrating mode, and the limiting clamping block (28) is movably located in the circular through hole.
7. An oil-filled transformer based on a cooling protection device according to claim 6, characterized in that: one end face of the limiting clamping block (28) is fixedly welded and connected with one side inside the mounting cavity (26) through a small-sized extension spring (27), and the other end of the limiting clamping block (28) is clamped into a limiting clamping groove (30) on the plug-in pin (24); the middle of the lower end in the round groove (25) is provided with a cylindrical deep groove in a penetrating mode, and the plug-in pin (24) is inserted into the cylindrical deep groove.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111009789.3A CN113451008B (en) | 2021-08-31 | 2021-08-31 | Oil-immersed transformer based on cooling protection device |
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| CN202111009789.3A CN113451008B (en) | 2021-08-31 | 2021-08-31 | Oil-immersed transformer based on cooling protection device |
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| CN113451008A CN113451008A (en) | 2021-09-28 |
| CN113451008B true CN113451008B (en) | 2021-11-05 |
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| CN113639031B (en) * | 2021-10-14 | 2021-12-14 | 江苏旺宇供应链管理有限公司 | Automobile-used gear box with detachable gears |
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| JPS60192309A (en) * | 1984-03-14 | 1985-09-30 | Toshiba Corp | Pressure releasing device of oil-immersed electric apparatus |
| DE10210396C1 (en) * | 2002-03-08 | 2003-07-10 | Reinhausen Maschf Scheubeck | Oil filter unit for power transformer stepping switch with regulation of feed pump motor for maintaining required volumetric flow rate through filter unit |
| CN110444368A (en) * | 2019-07-28 | 2019-11-12 | 福建安顺变压器有限公司 | A kind of closed type overvoltage protection oil-immersed transformer |
| CN112466618B (en) * | 2020-11-23 | 2021-11-19 | 山东省金曼克电气集团股份有限公司 | Oil-immersed transformer |
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