A respirator for transformer double helix channel

Abstract

The application discloses a kind of respirators for transformer double helix channel, it is related to transformer respirator technical field, the respirator includes breathing pipe, rotary valve, first exhaust pipe, second exhaust pipe, main breathing tank, auxiliary breathing tank, heating device, first air inlet pipe, second air inlet pipe, reversing valve, connecting pipe and oil cup, the rotary valve can change the direction of gas entering, the main breathing tank can absorb moisture in air, prevent moisture in air from entering the insulating oil of transformer, the auxiliary breathing tank can protect transformer when main breathing tank maintenance, the heating device can be in main breathing tank and auxiliary breathing tank in silica gel particle moisture absorption capacity reaches upper limit, silica gel particle dehumidification, so that silica gel particle restores dry function, the reversing valve can change the direction of gas going out, the impurities in gas can be filtered out by the insulating oil in oil cup, prevent pollution in transformer insulating oil.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of transformer breather, in particular to a breather for transformer double helix channel. BACKGROUND

[0002] The transformer plays a vital role in the power system, which is used for voltage conversion and power transmission, however, during the operation of the transformer, the conversion of electric energy will generate a large amount of heat, if these heat cannot be effectively dissipated, it will cause the temperature of the transformer to rise, and then affect the stability and service life of the transformer, the double helix channel design is an advanced transformer cooling technology, which improves the flow efficiency and heat exchange effect of the cooling oil through the double helix structure, so as to dissipate heat more effectively. In this cooling system, the role of the breather is also particularly important, not only to adjust the pressure difference between the inside and outside of the transformer, prevent the transformer oil tank from being deformed or damaged due to excessive pressure, but also to filter the air entering the system, protect the cooling oil from external pollutants.

[0003] The existing technology has defects: the existing breather will absorb the insulating oil in the oil cup of the breather into the drying tank when the transformer inhales, if the silica gel particles in the drying tank contact with the insulating oil, the silica gel particles will be contaminated and lose the drying effect; the silica gel particles in the existing breather need to be replaced when the moisture absorption capacity reaches the upper limit, during the replacement process, the breather cannot protect the transformer, which causes the transformer to be out of service; when the existing breather is blocked, the internal pressure of the breather will increase, the gas in the transformer cannot be discharged, which causes the transformer to be seriously damaged. SUMMARY

[0004] The purpose of the present application is to provide a breather for transformer double helix channel to solve the problems in the prior art.

[0005] In order to achieve the above object, the present application provides the following technical scheme: the respirator comprises a breathing tube, one end of the breathing tube is provided with a rotary valve, two sides of the rotary valve are provided with a first exhaust pipe and a second exhaust pipe, one end of the first exhaust pipe is provided with a main breathing tank, one end of the second exhaust pipe is provided with a secondary breathing tank, a heating device is arranged between the main breathing tank and the secondary breathing tank, one end of the main breathing tank is provided with a first air inlet pipe, one end of the secondary breathing tank is provided with a second air inlet pipe, one end of the first air inlet pipe is provided with a reversing valve, one end of the second air inlet pipe is arranged on the reversing valve, one side of the reversing valve is provided with a connecting pipe, one end of the connecting pipe is provided with an oil cup, the rotary valve and the reversing valve are connected to a control system. The rotary valve can change the direction of gas entering, the main breathing tank can absorb moisture in the air, preventing moisture in the air from entering the insulating oil of the transformer, the secondary breathing tank can protect the transformer when the main breathing tank is maintained, the heating device can dehumidify the silica gel particles when the silica gel particles in the main breathing tank and the secondary breathing tank reach the upper limit of the moisture absorption capacity, so that the silica gel particles restore the drying function, the reversing valve can change the direction of gas going out, and the insulating oil in the oil cup can filter out impurities in the gas, preventing impurities in the gas from polluting the insulating oil in the transformer.

[0006] The main breathing tank comprises an upper cover, the first exhaust pipe is arranged on the upper cover, the heating device is arranged on the upper cover, the upper cover is provided with a through slot, a pressure relief valve is arranged in the through slot, a silica gel tank is arranged below the upper cover, a support plate is arranged on the outer wall of the silica gel tank, a first quick release device is arranged below the upper cover, a second quick release device is arranged above the support plate, the first quick release device and the second quick release device cooperate with each other, a pressure sensor is arranged on the inner wall of the silica gel tank, a leak-proof net is arranged on the inner wall of the silica gel tank, the pressure sensor is arranged above the leak-proof net, the secondary breathing tank has the same structure as the main breathing tank, and the pressure sensor is connected to the control system. When air enters the silica gel tank, the silica gel particles on the leak-proof net can absorb the moisture in the air, when the silica gel particles need to be replaced after long-term use, the first quick release device and the second quick release device are manually separated, the upper cover and the silica gel tank can be separated, and the silica gel particles in the silica gel tank can be replaced, when the heating device heats and dehumidifies the silica gel particles in the silica gel tank, the pressure relief valve releases water vapor, when the main breathing tank is blocked, the air pressure in the silica gel tank increases, the gas pushes open the pressure relief valve, the pressure relief valve releases the gas, and the main breathing tank is prevented from being damaged.

[0007] The pressure relief valve comprises a valve shell, which is installed in the through slot of the upper cover, a sealing block is installed on the inner wall of the valve shell, the sealing block is provided with a sealing groove, a limiting plate is installed below the sealing block, the limiting plate is installed on the inner wall of the valve shell, the limiting plate is provided with a sliding groove, a connecting rod is slidably connected in the sliding groove, one end of the connecting rod is connected with a sealing head, the sealing head is installed in the sealing groove, the other end of the connecting rod is connected with a limiting block, one end of the limiting block is provided with a spring, one end of the spring is installed on the limiting block, and the spring is sleeved on the connecting rod. When the air pressure in the silica gel tank increases, the air pushes the limiting block to move upward, the limiting block drives the connecting rod to move upward, the spring contracts, the connecting rod drives the sealing head to slide upward in the sealing groove, a gap is formed between the sealing head and the sealing groove, and the air is released from the gap. When the air pressure in the silica gel tank becomes smaller, the spring is stretched, the spring drives the limiting block to move downward, the limiting block drives the connecting rod to move downward, and the connecting rod drives the sealing head to move downward to the initial position, thereby blocking the gap between the sealing head and the sealing groove.

[0008] The first quick release device comprises a shell, which is installed on one side of the upper cover, one end of the shell is connected with a triangular block, the shell is provided with a triangular groove, a semicircular groove and a groove, an arc-shaped block is connected in the semicircular groove, a semicircular block is rotatably connected in the semicircular groove, the semicircular block is provided with an arc-shaped groove, the arc-shaped block slides in the arc-shaped groove, one end of the semicircular block is connected with an operating rod, the operating rod rotates in the groove, a cylinder is connected in the groove, a tension spring is installed between the cylinder and the operating rod, and the second quick release device has the same structure as the first quick release device. When the silica gel particles need to be replaced, the operating rod is manually pulled away from the cylinder, the operating rod drives the semicircular block to rotate in the semicircular groove, when the bottom edge of the semicircular block is in the same plane as the slot opening of the semicircular groove, the first quick release device and the second quick release device are disengaged, and the tension spring drives the operating rod to return to the initial position, so that the upper cover and the silica gel tank can be separated, when the replacement of the silica gel particles is completed, the triangular block of the first quick release device is inserted into the triangular groove of the second quick release device, the semicircular block of the second quick release device drives the semicircular block of the first quick release device to rotate in the semicircular groove, the semicircular block drives the operating rod to rotate, the operating rod rotates away from the cylinder, the operating rod drives the tension spring to stretch, when the triangular block of the first quick release device completely enters the triangular groove of the second quick release device, the semicircular block rotates to the position that the bottom edge of the semicircular block is in the same plane as the slot opening of the semicircular groove, the tension spring contracts, the tension spring drives the operating rod to rotate towards the cylinder, the operating rod drives the semicircular block to rotate in the semicircular groove, so that the first quick release device and the second quick release device are matched with each other, and the upper cover is installed on the silica gel tank.

[0009] The heating device comprises a mounting plate mounted on the upper cover, a motor mounted on one side of the mounting plate, a rotating shaft mounted at the output end of the motor, a detection device mounted on one side of the rotating shaft, a heat collecting plate mounted on the rotating shaft, a fixing block mounted on one side of the heat collecting plate, an electric heating tube mounted on the fixing block, and the motor and the electric heating tube connected to a control system. When the detection device detects that the silica gel particles in the main breathing tank change from blue to red, the control system controls the rotary valve to start, so that the gas enters the second exhaust pipe, controls the reversing valve to start, so that the gas is discharged from the second air inlet pipe, protects the transformer by the auxiliary breathing tank, controls the motor to start, the motor drives the rotating shaft to rotate, the rotating shaft drives the heat collecting plate to rotate, so that the inner arc surface of the heat collecting plate faces the main breathing tank, controls the electric heating tube to heat, the heat collecting plate can collect the heat radiation emitted by the electric heating tube into the main breathing tank, and the silica gel particles in the main breathing tank are roasted. The air pressure in the main breathing tank will rise, and the water vapor will come out from the pressure relief valve. When the detection device detects that the silica gel particles in the main breathing tank return to blue, the control system controls the electric heating tube to stop heating, controls the motor to reverse, and the motor drives the heat collecting plate to rotate back to the initial position. When the detection device detects that the silica gel particles in the auxiliary breathing tank change from blue to red, the above steps are repeated.

[0010] The detection device comprises an external cover mounted on one side of the mounting plate, an internal cover rotatably mounted in the external cover, the internal cover mounted on the rotating shaft, a photosensitive sensor mounted in the internal cover, a first light transmission hole formed in the external cover, a light shielding tube mounted in the two first light transmission holes, a second light transmission hole and a third light transmission hole formed in the internal cover, the second light transmission hole, the third light transmission hole and the first light transmission hole being the same size, the second light transmission hole, the third light transmission hole and the first light transmission hole being at the same height, the angle between the second light transmission hole and the third light transmission hole being 90°, and the photosensitive sensor connected to the control system. When the detection device is in the initial position, the second light transmission hole communicates with the first light transmission hole, so that the photosensitive sensor can simultaneously collect the color light reflected by the silica gel particles in the main breathing tank and the auxiliary breathing tank. When the motor starts, the motor drives the rotating shaft to rotate, the rotating shaft drives the internal cover to rotate by 90°, the third light transmission hole communicates with the first light transmission hole, and the photosensitive sensor can only detect the color light reflected by the silica gel particles in the main breathing tank or the auxiliary breathing tank.

[0011] The oil cup includes a cup cover, the cup cover is provided with a circular groove, the connecting pipe is installed in the circular groove, a cup body is installed below the cup cover, an exhaust cavity is installed in the cup cover, a breather pipe is installed on one side of the cup cover, the breather pipe is installed outside the cup body, the breather pipe is communicated with the exhaust cavity, a gas hole is formed on one side of the cup cover, the gas hole is communicated with the exhaust cavity, and the gas hole is installed inside the cup body.

[0012] The silica gel tank is made of glass.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] 1、the breather of the present application is designed by lengthening the pipeline, when the transformer inhales, the insulating oil in the oil cup will only be sucked into the pipeline, and will not come into contact with the silica gel particles in the drying tank, so that the silica gel particles are prevented from being contaminated by the insulating oil;

[0015] 2、the quick release device of the present application can quickly and efficiently detach the drying tank when the breather needs to be maintained or the silica gel particles need to be replaced after long-term use, thereby saving labor cost and improving efficiency;

[0016] 3、the breather of the present application has a double-channel structure, when one of the breathers is maintained, it will automatically switch to the other breather, so that the protection of the breather on the transformer is not affected, and the breather has an automatic dehumidification structure, which can dehumidify the silica gel particles after absorbing moisture, so that the silica gel particles restore the drying function, and the two breathers can be used alternately to achieve the effect of maintenance-free;

[0017] 4、when the breather is blocked, the gas in the breather will push open the pressure relief valve to achieve the effect of pressure relief, and after the pressure relief is completed, the pressure relief valve will return to the initial position to seal the breather, thereby avoiding damage to the transformer caused by the blockage of the breather. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the breather of the present application;

[0019] Figure 2 is a perspective view of the main breather tank of the present application;

[0020] Figure 3 is Figure 2 is a sectional view in the A-A direction;

[0021] Figure 4 is a sectional view of the pressure relief valve of the present application;

[0022] Figure 5 Internal view of the pressure relief valve of the present application;

[0023] Figure 6 Perspective view of the first quick release device of the present application;

[0024] Figure 7 Sectional view of the first quick release device and the second quick release device cooperating with each other of the present application;

[0025] Figure 8 Perspective view of the heating device of the present application;

[0026] Figure 9 Exploded view of the detection device of the present application;

[0027] Figure 10 Sectional view of the oil cup of the present application.

[0028] In the figure: 1, breathing pipe; 2, rotary valve; 3, first exhaust pipe; 4, second exhaust pipe; 5, main breathing tank; 51, upper cover; 52, pressure relief valve; 521, valve shell; 522, sealing block; 523, sealing head; 524, connecting rod; 525, limiting block; 526, spring; 527, limiting plate; 53, silica gel tank; 54, support plate; 55, first quick release device; 551, shell; 552, triangular block; 553, triangular groove; 554, semicircular block; 555, operating rod; 556, tension spring; 557, arc-shaped block; 558, cylinder; 559, semicircular groove; 56, second quick release device; 57, pressure sensor; 58, leak-proof net; 6, auxiliary breathing tank; 7, heating device; 71, mounting plate; 72, motor; 73, detection device; 731, external cover; 732, internal cover; 733, light shielding tube; 734, first light transmission hole; 735, second light transmission hole; 736, third light transmission hole; 74, heat collecting plate; 75, fixing block; 76, electric heating tube; 8, first air inlet pipe; 9, second air inlet pipe; 10, reversing valve; 11, connecting pipe; 12, oil cup; 121, cup cover; 122, cup body; 123, exhaust cavity; 124, air pipe; 125, air hole. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0030] Embodiment: as Figures 1-10As shown, the present application provides technical solutions, the respirator includes a breathing tube 1, one end of the breathing tube 1 is provided with a rotary valve 2, the two sides of the rotary valve 2 are provided with a first exhaust pipe 3 and a second exhaust pipe 4, one end of the first exhaust pipe 3 is provided with a main breathing tank 5, one end of the second exhaust pipe 4 is provided with a secondary breathing tank 6, a heating device 7 is installed between the main breathing tank 5 and the secondary breathing tank 6, one end of the main breathing tank 5 is provided with a first air inlet pipe 8, one end of the secondary breathing tank 6 is provided with a second air inlet pipe 9, one end of the first air inlet pipe 8 is provided with a reversing valve 10, one end of the second air inlet pipe 9 is installed on the reversing valve 10, one side of the reversing valve 10 is provided with a connecting pipe 11, one end of the connecting pipe 11 is provided with an oil cup 12, the rotary valve 2 and the reversing valve 10 are connected to a control system.

[0031] The rotary valve 2 can change the direction of gas entering, the main breathing tank 5 can absorb moisture in the air, prevent moisture in the air from entering the insulating oil of the transformer, the secondary breathing tank 6 can protect the transformer when the main breathing tank 5 is maintained, the heating device 7 can dehumidify the silica gel particles when the silica gel particles in the main breathing tank 5 and the secondary breathing tank 6 reach the upper limit of the moisture absorption capacity, the reversing valve 10 can change the direction of gas going out, the insulating oil in the oil cup 12 can filter out impurities in the gas, prevent impurities in the gas from polluting the insulating oil in the transformer.

[0032] The main breathing tank 5 includes an upper cover 51, the first exhaust pipe 3 is installed on the upper cover 51, the heating device 7 is installed on the upper cover 51, the upper cover 51 is provided with a through slot, a pressure relief valve 52 is installed in the through slot, a silica gel tank 53 is installed below the upper cover 51, the silica gel tank 53 is made of glass, a support plate 54 is installed on the outer wall of the silica gel tank 53, a first quick release device 55 is installed below the upper cover 51, a second quick release device 56 is installed above the support plate 54, the first quick release device 55 and the second quick release device 56 cooperate with each other, a pressure sensor 57 is installed on the inner wall of the silica gel tank 53, a leak-proof net 58 is installed on the inner wall of the silica gel tank 53, the pressure sensor 57 is installed above the leak-proof net 58, the secondary breathing tank 6 has the same structure as the main breathing tank 5, and the pressure sensor 57 is connected to the control system. When air enters the silica gel tank 53, the silica gel particles on the leak-proof net 58 can absorb moisture in the air.

[0033] When the silica gel particles need to be replaced after long-term use, the first quick release device 55 and the second quick release device 56 are separated by hand, the upper cover 51 and the silica gel tank 53 can be separated, the silica gel particles in the silica gel tank 53 are replaced, when the heating device 7 heats and dehumidifies the silica gel particles in the silica gel tank 53, the pressure relief valve 52 releases water vapor, when the main breathing tank 5 is blocked, the air pressure in the silica gel tank 53 increases, the gas pushes open the pressure relief valve 52, the pressure relief valve 52 releases the gas, preventing the main breathing tank 5 from being damaged.

[0034] The pressure relief valve 52 comprises a valve shell 521 installed in the through slot of the upper cover 51, a sealing block 522 installed on the inner wall of the valve shell 521, the sealing block 522 being provided with a sealing groove, a limiting plate 527 installed below the sealing block 522, the limiting plate 527 being installed on the inner wall of the valve shell 521, the limiting plate 527 being provided with a sliding groove, a connecting rod 524 slidably connected in the sliding groove, one end of the connecting rod 524 being connected with a sealing head 523, the sealing head 523 being installed in the sealing groove, the other end of the connecting rod 524 being connected with a limiting block 525, one end of the limiting block 525 being installed with a spring 526, one end of the spring 526 being installed on the limiting block 525, the spring 526 being sleeved on the connecting rod 524. When the air pressure in the silica gel tank 53 increases, the limiting block 525 is pushed upward by the air, the limiting block 525 drives the connecting rod 524 to move upward, the spring 526 contracts, the connecting rod 524 drives the sealing head 523 to slide upward in the sealing groove, and an air gap is formed between the sealing head 523 and the sealing groove, and the air is released from the air gap.

[0035] When the air pressure in the silica gel tank 53 decreases, the spring 526 is stretched, the spring 526 drives the limiting block 525 to move downward, the limiting block 525 drives the connecting rod 524 to move downward, the connecting rod 524 drives the sealing head 523 to move downward to the initial position, and the air gap between the sealing head 523 and the sealing groove is blocked.

[0036] The first quick release device 55 comprises an outer shell 551 installed on one side of the upper cover 51, one end of the outer shell 551 being connected with a triangular block 552, the outer shell 551 being provided with a triangular groove 553, a semicircular groove 559 and a recess, an arc-shaped block 557 being connected in the semicircular groove 559, a semicircular block 554 being rotatably connected in the semicircular groove 559, the semicircular block 554 being provided with an arc-shaped groove, the arc-shaped block 557 sliding in the arc-shaped groove, one end of the semicircular block 554 being connected with an operating rod 555, the operating rod 555 rotating in the recess, a cylindrical block 558 being connected in the recess, a tension spring 556 being installed between the cylindrical block 558 and the operating rod 555, and the second quick release device 56 being the same structure as the first quick release device 55. When it is necessary to replace the silica gel particles, the operating rod 555 is manually pulled away from the cylindrical block 558, the operating rod 555 drives the semicircular block 554 to rotate in the semicircular groove 559, when the bottom edge of the semicircular block 554 is in the same plane as the slot opening of the semicircular groove 559, the first quick release device 55 and the second quick release device 56 are disengaged, and the tension spring 556 drives the operating rod 555 to return to the initial position, so that the upper cover 51 and the silica gel tank 53 can be separated.

[0037] When the replacement of silica gel particles is completed, the triangular block 552 of the first quick release device 55 is inserted into the triangular groove 553 of the second quick release device 56 by hand, the semicircular block 554 of the second quick release device 56 drives the semicircular block 554 of the first quick release device 55 to rotate in the semicircular groove 559, the semicircular block 554 drives the operating rod 555 to rotate, the operating rod 555 rotates away from the cylinder 558, the operating rod 555 drives the tension spring 556 to stretch, when the triangular block 552 of the first quick release device 55 is completely inserted into the triangular groove 553 of the second quick release device 56, the semicircular block 554 rotates to the bottom edge of the semicircular block 554 and the slot of the semicircular groove 559 are in the same plane, the tension spring 556 contracts, the tension spring 556 drives the operating rod 555 to rotate towards the cylinder 558, the operating rod 555 drives the semicircular block 554 to rotate in the semicircular groove 559, so that the first quick release device 55 and the second quick release device 56 cooperate with each other to install the upper cover 51 on the silica gel tank 53.

[0038] The heating device 7 includes a mounting plate 71 mounted on the upper cover 51, one side of the mounting plate 71 is provided with a motor 72, the output end of the motor 72 is provided with a rotating shaft, the rotating shaft is provided with a heat collecting plate 74, the heat collecting plate 74 is provided with a fixed block 75 on one side, the fixed block 75 is provided with an electric heating tube 76, and the motor 72 and the electric heating tube 76 are connected to a control system. When the detection device 73 detects that the silica gel particles in the main breathing tank 5 change from blue to red, the control system controls the rotary valve 2 to start, so that the gas enters the second exhaust pipe 4, controls the reversing valve 10 to start, so that the gas is discharged from the second air inlet pipe 9, protects the transformer by the auxiliary breathing tank 6, controls the motor 72 to start, the motor 72 drives the rotating shaft to rotate, the rotating shaft drives the heat collecting plate 74 to rotate by 90°, so that the inner arc surface of the heat collecting plate 74 faces the main breathing tank 5, controls the electric heating tube 76 to heat, and the heat collecting plate 74 can collect the heat radiation of the electric heating tube 76 to the main breathing tank 5, so as to bake the silica gel particles in the main breathing tank 5, and the air pressure in the main breathing tank 5 will rise, and the water vapor will come out from the pressure relief valve 52.

[0039] When the detection device 73 detects that the silica gel particles in the main breathing tank 5 return to blue, the control system controls the electric heating tube 76 to stop heating, controls the motor 72 to reverse, and the motor 72 drives the heat collecting plate 74 to rotate back to the initial position. When the detection device 73 detects that the silica gel particles in the auxiliary breathing tank 6 change from blue to red, the above steps are repeated.

[0040] The detection device 73 comprises an outer cover 731 mounted on one side of the mounting plate 71, an inner cover 732 rotatably mounted in the inner cover 731, the inner cover 732 is mounted on a rotating shaft, a photosensitive sensor is mounted in the inner cover 732, a first light transmission hole 734 is formed in the outer cover 731, a light shielding tube 733 is mounted in the two first light transmission holes 734, a second light transmission hole 735 and a third light transmission hole 736 are formed in the inner cover 732, the second light transmission hole 735, the third light transmission hole 736 and the first light transmission hole 734 are the same size, the second light transmission hole 735, the third light transmission hole 736 and the first light transmission hole 734 are at the same height, the angle between the second light transmission hole 735 and the third light transmission hole 736 is 90°, and the photosensitive sensor is connected to the control system. When the detection device 73 is in the initial position, the second light transmission hole 735 is communicated with the first light transmission hole 734, so that the photosensitive sensor can simultaneously collect the color light reflected by the silica gel particles in the main breathing tank 5 and the auxiliary breathing tank 6, when the motor 72 is started, the motor 72 drives the rotating shaft to rotate, the rotating shaft drives the inner cover 732 to rotate by 90°, so that the third light transmission hole 736 is communicated with the first light transmission hole 734, so that the photosensitive sensor can only detect the color light reflected by the silica gel particles in the main breathing tank 5 or the auxiliary breathing tank 6.

[0041] The oil cup 12 comprises a cup cover 121, a circular groove is formed in the cup cover 121, the connecting pipe 11 is mounted in the circular groove, a cup body 122 is mounted below the cup cover 121, an exhaust cavity 123 is mounted in the cup cover 121, a breather pipe 124 is mounted on one side of the cup cover 121, the breather pipe 124 is mounted outside the cup body 122, the breather pipe 124 is communicated with the exhaust cavity 123, a gas hole 125 is formed in one side of the cup cover 121, the gas hole 125 is communicated with the exhaust cavity 123, and the gas hole 125 is mounted in the cup body 122. When the transformer inhales, the gas in the atmosphere enters the exhaust cavity 123 from the breather pipe 124, enters the cup body 122 through the gas hole 125, and the impurities in the gas are filtered by the insulating oil in the cup body 122, and then the gas enters the connecting pipe 11, when the transformer exhales, the gas enters the cup body 122 from the connecting pipe 11, enters the exhaust cavity 123 from the gas hole 125, and is discharged to the atmosphere from the breather pipe 124.

[0042] The working principle of the present application is as follows:

[0043] When the transformer inhales, the gas in the atmosphere enters the exhaust cavity 123 from the breather pipe 124, enters the cup body 122 through the gas hole 125, and the impurities in the gas are filtered by the insulating oil in the cup body 122, and then the gas enters the connecting pipe 11, when the transformer exhales, the gas enters the cup body 122 from the connecting pipe 11, enters the exhaust cavity 123 from the gas hole 125, and is discharged to the atmosphere from the breather pipe 124.

[0044] When the transformer exhales, the gas enters the rotary valve 2 through the breathing pipe 1, enters the silica gel tank 53 of the main breathing tank 5 through the first exhaust pipe 3, enters the reversing valve 10 through the first gas inlet pipe 8, and the gas enters the cup body 122 from the connecting pipe 11, enters the exhaust cavity 123 from the air hole 125, and is discharged to the atmosphere from the breather pipe 124.

[0045] When the photosensitive sensor detects that the silica gel particles in the silica gel tank 53 of the main breathing tank 5 change from blue to red, the control system controls the rotary valve 2 to start, so that the gas enters the second exhaust pipe 4, controls the reversing valve 10 to start, so that the gas is discharged from the second gas inlet pipe 9, protects the transformer by the auxiliary breathing tank 6, controls the motor 72 to start, the motor 72 drives the rotating shaft to rotate, the rotating shaft drives the internal shade 732 to rotate 90°, so that the third light transmission hole 736 is communicated with the first light transmission hole 734, so that the photosensitive sensor can only detect the color light reflected by the silica gel particles in the main breathing tank 5, the rotating shaft simultaneously drives the heat collecting plate 74 to rotate 90°, so that the inner arc surface of the heat collecting plate 74 faces the main breathing tank 5, controls the electric heating tube 76 to heat, the heat collecting plate 74 can gather the heat radiation emitted by the electric heating tube 76 into the main breathing tank 5, and the silica gel particles in the main breathing tank 5 are roasted, and the air pressure in the main breathing tank 5 will rise.

[0046] When the air pressure in the silica gel tank 53 rises, the gas moves upward against the limiting block 525, the limiting block 525 drives the connecting rod 524 to move upward, the spring 526 contracts, the connecting rod 524 drives the sealing head 523 to slide upward in the sealing groove, and the gap is formed between the sealing head 523 and the sealing groove. The gas is released from the gap.

[0047] When the photosensitive sensor detects that the silica gel particles in the main breathing tank 5 return to blue, the control system controls the electric heating tube 76 to stop heating, the air pressure in the silica gel tank 53 becomes smaller, the spring 526 is stretched, the spring 526 drives the limiting block 525 to move downward, the limiting block 525 drives the connecting rod 524 to move downward, the connecting rod 524 drives the sealing head 523 to move downward to the initial position, and the gap between the sealing head 523 and the sealing groove is blocked, the control system controls the motor 72 to reverse, the motor 72 drives the heat collecting plate 74 to rotate back to the initial position, and when the photosensitive sensor detects that the silica gel particles in the auxiliary breathing tank 6 change from blue to red, the above steps are repeated.

[0048] When the silica gel particles need to be replaced after a long time of use, the operating rod 555 is manually pulled away from the cylinder 558, the operating rod 555 drives the semicircular block 554 to rotate in the semicircular groove 559, when the bottom edge of the semicircular block 554 is in the same plane as the notch of the semicircular groove 559, the first quick release device 55 and the second quick release device 56 will be disengaged, and the tension spring 556 will drive the operating rod 555 to return to the initial position, so that the upper cover 51 and the silica gel tank 53 can be separated, and the silica gel particles in the silica gel tank 53 can be replaced.

[0049] When the silica gel particles are replaced, the triangular block 552 of the first quick release device 55 is inserted into the triangular groove 553 of the second quick release device 56, the semicircular block 554 of the second quick release device 56 drives the semicircular block 554 of the first quick release device 55 to rotate in the semicircular groove 559, the semicircular block 554 drives the operating rod 555 to rotate, the operating rod 555 rotates away from the cylinder 558, the operating rod 555 drives the tension spring 556 to stretch, when the triangular block 552 of the first quick release device 55 is completely inserted into the triangular groove 553 of the second quick release device 56, the semicircular block 554 rotates to the bottom edge of the semicircular block 554 and the slot of the semicircular groove 559 are in the same plane, the tension spring 556 contracts, the tension spring 556 drives the operating rod 555 to rotate towards the cylinder 558, the operating rod 555 drives the semicircular block 554 to rotate in the semicircular groove 559, so that the first quick release device 55 and the second quick release device 56 cooperate with each other to install the upper cover 51 on the silica gel tank 53.

[0050] When the main breathing tank 5 is blocked, the gas pressure in the silica gel tank 53 increases, the limiting block 525 drives the connecting rod 524 to move upward, the spring 526 contracts, the connecting rod 524 drives the sealing head 523 to slide upward in the sealing groove, the gap is formed between the sealing head 523 and the sealing groove, the gas is released from the gap, and the main breathing tank 5 is prevented from being damaged, when the pressure sensor 57 senses that the gas pressure increases and the electric heating tube 76 is not started, the control system controls the rotary valve 2 to start, so that the gas enters the second exhaust pipe 4, and the control reversing valve 10 is started, so that the gas is discharged from the second air inlet pipe 9, and the transformer is protected by the auxiliary breathing tank 6.

[0051] When the pressure relief of the silica gel tank 53 is completed, the gas pressure in the silica gel tank 53 decreases, the spring 526 stretches, the spring 526 drives the limiting block 525 to move downward, the limiting block 525 drives the connecting rod 524 to move downward, the connecting rod 524 drives the sealing head 523 to move downward to the initial position, and the gap between the sealing head 523 and the sealing groove is blocked, so that the silica gel tank 53 is isolated from the outside air.

[0052] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the above description, and it is intended to embrace all changes and modifications that fall within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. A breather for a transformer double-helix channel, characterized in that: The respirator includes a breathing tube (1), a rotary valve (2) is installed at one end of the breathing tube (1), a first exhaust pipe (3) and a second exhaust pipe (4) are installed on both sides of the rotary valve (2), a main breathing canister (5) is installed at one end of the first exhaust pipe (3), a secondary breathing canister (6) is installed at one end of the second exhaust pipe (4), a heating device (7) is installed between the main breathing canister (5) and the secondary breathing canister (6), a first air inlet pipe (8) is installed at one end of the main breathing canister (5), a second air inlet pipe (9) is installed at one end of the secondary breathing canister (6), a reversing valve (10) is installed at one end of the first air inlet pipe (8), a reversing valve (10) is installed at one end of the second air inlet pipe (9), a connecting pipe (11) is installed on one side of the reversing valve (10), an oil cup (12) is installed at one end of the connecting pipe (11), and the rotary valve (2) and the reversing valve (10) are connected to the control system. The main breathing canister (5) includes a top cover (51), the first exhaust pipe (3) is installed on the top cover (51), the heating device (7) is installed on the top cover (51), the top cover (51) has a through groove, a pressure relief valve (52) is installed in the through groove, a silicone canister (53) is installed below the top cover (51), a support plate (54) is installed on the outer wall of the silicone canister (53), a first quick-release device (55) is installed below the top cover (51), a second quick-release device (56) is installed above the support plate (54), the first quick-release device (55) and the second quick-release device (56) cooperate with each other, a pressure sensor (57) is installed on the inner wall of the silicone canister (53), a leak-proof mesh (58) is installed on the inner wall of the silicone canister (53), the pressure sensor (57) is installed above the leak-proof mesh (58), the auxiliary breathing canister (6) has the same structure as the main breathing canister (5), and the pressure sensor (57) is connected to the control system. The pressure relief valve (52) includes a valve housing (521), which is installed in a through groove of the upper cover (51). A sealing block (522) is installed on the inner wall of the valve housing (521). The sealing block (522) has a sealing groove. A limiting plate (527) is installed below the sealing block (522). The limiting plate (527) is installed on the inner wall of the valve housing (521). The limiting plate (527) has a sliding groove. A connecting rod (524) is slidably connected in the moving groove. One end of the connecting rod (524) is connected to a sealing head (523), which is installed in the sealing groove. The other end of the connecting rod (524) is connected to a limit block (525). A spring (526) is installed on one end of the limit block (525), and one end of the spring (526) is installed on the limit block (525). The spring (526) is sleeved on the connecting rod (524). The first quick-release device (55) includes a housing (551), which is installed on one side of the upper cover (51). A triangular block (552) is connected to one end of the housing (551). A triangular groove (553), a semi-circular groove (559), and a recess are provided on the housing (551). An arc-shaped block (557) is connected in the semi-circular groove (559). A semi-circular block (554) is rotatably connected in the semi-circular groove (559). An arc-shaped groove is provided on the semi-circular block (554). The arc-shaped block (557) slides in the arc-shaped groove. An operating rod (555) is connected to one end of the semi-circular block (554). The operating rod (555) rotates in the recess. A cylinder (558) is connected in the recess. A tension spring (556) is installed between the cylinder (558) and the operating rod (555). The second quick-release device (56) has the same structure as the first quick-release device (55).

2. A breather for a transformer double-helix channel according to claim 1, characterized in that: The heating device (7) includes a mounting plate (71), which is mounted on the top cover (51). A motor (72) is mounted on one side of the mounting plate (71). A rotating shaft is mounted on the output end of the motor (72). A detection device (73) is mounted on the rotating shaft. The detection device (73) is mounted on one side of the mounting plate (71). A heat-concentrating plate (74) is mounted on the rotating shaft. A fixing block (75) is mounted on one side of the heat-concentrating plate (74). An electric heating tube (76) is mounted on the fixing block (75). The motor (72) and the electric heating tube (76) are connected to the control system.

3. A breather for a transformer double-helix channel according to claim 2, characterized in that: The detection device (73) includes an outer shield (731) mounted on one side of a mounting plate (71). An inner shield (732) is rotatably mounted inside the outer shield (731). The inner shield (732) is mounted on a rotating shaft. A photosensitive sensor is installed inside the inner shield (732). A first light-transmitting hole (734) is provided on the outer shield (731), and a light-shielding tube (733) is installed in one of the two first light-transmitting holes (734). The inner shield (732) is provided with a second light-transmitting hole (735) and a third light-transmitting hole (736). The second light-transmitting hole (735), the third light-transmitting hole (736) and the first light-transmitting hole (734) are the same size. The second light-transmitting hole (735), the third light-transmitting hole (736) and the first light-transmitting hole (734) are at the same height. The angle between the second light-transmitting hole (735) and the third light-transmitting hole (736) is 90°. The photosensitive sensor is connected to the control system.

4. A breather for a transformer double-helix channel according to claim 3, characterized in that: The oil cup (12) includes a cup lid (121), the cup lid (121) has a circular groove, the connecting pipe (11) is installed in the circular groove, the cup body (122) is installed below the cup lid (121), the cup lid (121) has an exhaust chamber (123), the cup lid (121) has a vent pipe (124) installed on one side of the cup lid (121), the vent pipe (124) is installed outside the cup body (122), the vent pipe (124) is connected to the exhaust chamber (123), the cup lid (121) has an air hole (125) on one side, the air hole (125) is connected to the exhaust chamber (123), and the air hole (125) is installed inside the cup body (122).

5. A breather for a transformer double-helix channel according to claim 4, characterized in that: The silicone container (53) is made of glass.

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