Respirator for double-spiral channel of transformer

Abstract

The invention discloses a respirator for double spiral channels of a transformer, and relates to the technical field of transformer respirators, the respirator comprises a breathing tube, a rotary valve, a first exhaust pipe, a second exhaust pipe, a main breathing tank, an auxiliary breathing tank, a heating device, a first air inlet pipe, a second air inlet pipe, a reversing valve, a connecting pipe and an oil cup, the rotary valve can change the gas inlet direction, the main breathing tank can absorb moisture in air and prevent the moisture in the air from entering insulating oil of the transformer, and the auxiliary breathing tank can protect the transformer when the main breathing tank is maintained. The heating device can dehumidify the silica gel particles when the moisture absorption capacity of the silica gel particles in the main breathing tank and the auxiliary breathing tank reaches the upper limit, so that the silica gel particles recover the drying function, the reversing valve can change the gas outlet direction, insulating oil in the oil cup can filter out impurities in gas, and the silica gel particles in the main breathing tank and the auxiliary breathing tank can recover the drying function. And insulating oil in the transformer is prevented from being polluted.

Description

Technical Field

[0001] The invention relates to the technical field of transformer respirators, in particular to a respirator used for a double helix channel of a transformer. Background Art

[0002] Transformers play a vital role in power systems, used for voltage conversion and power transmission. However, during the operation of transformers, the conversion of power will generate a lot of heat. If this heat cannot be effectively dissipated, the temperature of the transformer will rise, which will affect the stability and service life of the transformer. The double helix channel design is an advanced transformer cooling technology. The double helix structure improves the flow efficiency and heat exchange effect of the cooling oil, thereby dissipating heat more effectively. In this cooling system, the role of the respirator is also particularly important. It not only adjusts the pressure difference between the inside and outside of the transformer, and prevents the transformer oil tank from being deformed or damaged due to excessive pressure, but also filters the air entering the system to protect the cooling oil from external pollutants.

[0003] The existing technology has defects: when the existing respirator inhales air in the transformer, the insulating oil in the oil cup of the respirator will be sucked into the drying tank. If the silica gel particles in the drying tank come into contact with the insulating oil, the silica gel particles will be contaminated and lose their drying function; when the moisture absorption capacity of the silica gel particles in the existing respirator reaches the upper limit, the silica gel particles need to be replaced. During the replacement process, the respirator cannot protect the transformer, causing the transformer to fail; when the existing respirator is blocked, the internal pressure of the respirator will increase, and the gas in the transformer cannot be discharged, causing serious damage to the transformer. Summary of the invention

[0004] The object of the present invention is to provide a respirator for a double helix channel of a transformer to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the respirator includes a breathing tube, a rotary valve is installed at one end of the breathing tube, a first exhaust pipe and a second exhaust pipe are installed on both sides of the rotary valve, a main breathing tank is installed at one end of the first exhaust pipe, a secondary breathing tank is installed at one end of the second exhaust pipe, a heating device is installed between the main breathing tank and the secondary breathing tank, a first air intake pipe is installed at one end of the main breathing tank, a second air intake pipe is installed at one end of the secondary breathing tank, a reversing valve is installed at one end of the first air intake pipe, one end of the second air intake pipe is installed on the reversing valve, a connecting pipe is installed on one side of the reversing valve, an oil cup is installed at one end of the connecting pipe, and the rotary valve and the reversing valve are connected to a control system. The rotary valve can change the direction of gas entry, the main breathing tank can absorb moisture in the air to prevent moisture in the air from entering the insulating oil of the transformer, the auxiliary breathing tank can protect the transformer when the main breathing tank is maintained, and the heating device can dehumidify the silica gel particles when the moisture absorption capacity of the silica gel particles in the main breathing tank and the auxiliary breathing tank reaches the upper limit to restore the drying function of the silica gel particles. The reversing valve can change the direction of gas exit, and the insulating oil in the oil cup can filter out impurities in the gas to prevent impurities in the gas from contaminating the insulating oil in the transformer.

[0006] The main breathing tank includes an upper cover, the first exhaust pipe is installed on the upper cover, the heating device is installed on the upper cover, the upper cover is provided with a through groove, a pressure relief valve is installed in the through groove, a silicone tank is installed below the upper cover, a support plate is installed on the outer wall of the silicone tank, a first quick-release device is installed below the upper cover, a second quick-release device is installed above the support plate, the first quick-release device and the second quick-release device cooperate with each other, a pressure sensor is installed on the inner wall of the silicone tank, an anti-leakage net is installed on the inner wall of the silicone tank, the pressure sensor is installed above the anti-leakage net, the auxiliary 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 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 can be 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, and the pressure relief valve releases the gas to prevent damage to the main breathing tank.

[0007] The pressure relief valve includes a valve housing, which is installed in the through groove of the upper cover, a sealing block is installed on the inner wall of the valve housing, 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 housing, 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 to a sealing head, the sealing head is installed in the sealing groove, the other end of the connecting rod is connected to the 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 silicone can increases, the gas moves upward against the limit block, the limit 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 gas is released from the gap; when the air pressure in the silicone can decreases, the spring stretches, the spring drives the limit block to move downward, the limit block drives the connecting rod to move downward, the connecting rod drives the sealing head to move downward to the initial position, blocking the gap between the sealing head and the sealing groove.

[0008] The first quick-release device includes a shell, which is installed on one side of the upper cover, one end of the shell is connected to a triangular block, the shell is provided with a triangular groove, a semicircular groove and a groove, an arc block is connected to the semicircular groove, a semicircular block is rotatably connected to the semicircular groove, an arc groove is provided on the semicircular block, the arc block slides in the arc groove, one end of the semicircular block is connected to an operating rod, the operating rod rotates in the groove, a cylinder is connected to 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 silicone particles need to be replaced, the operating rod is manually pulled in a direction away from the cylinder, and the operating rod drives the semicircular block to rotate in the semicircular groove. When the semicircular block rotates until the bottom edge of the semicircular block and the notch of the semicircular groove are in the same plane, the first quick-release device and the second quick-release device will be disengaged, and the tension spring will drive the operating rod back to the initial position, so that the upper cover and the silicone tank can be separated. When the silicone particles are replaced, the triangular block of the first quick-release device is manually inserted into the triangular groove of the second quick-release device, and the semicircular block of the second quick-release device will drive the first quick-release device to rotate. The semicircular block of the device rotates in the semicircular groove, the semicircular block will drive the operating rod to rotate, the operating rod rotates in the direction away from the cylinder, the operating rod will drive 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 will rotate until the bottom edge of the semicircular block and the notch of the semicircular groove are in the same plane, the tension spring contracts, the tension spring drives the operating rod to rotate in the direction close to 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 cooperate with each other, and the upper cover is installed on the silicone tank.

[0009] The heating device includes a mounting plate, which is mounted on the upper cover. A motor is mounted on one side of the mounting plate. A rotating shaft is mounted on the output end of the motor. A detection device is mounted on the rotating shaft. The detection device is mounted on one side of the mounting plate. A heat collecting plate is mounted on the rotating shaft. A fixing block is mounted on one side of the heat collecting plate. An electric heating pipe is mounted on the fixing block. The motor and the electric heating pipe are 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, allowing the gas to enter the second exhaust pipe, controls the reversing valve to start, allowing the gas to be discharged from the second intake pipe, and the auxiliary breathing tank protects the transformer, controls the motor to start, the motor drives the shaft to rotate, and the shaft drives the heat collecting plate to rotate °, so that the inner arc of the heat collecting plate faces the main breathing tank, controls the electric heating tube to heat up, and the heat collecting plate can gather the heat radiation emitted by the electric heating tube into the main breathing tank to bake the silica gel particles in the main breathing tank. The air pressure in the main breathing tank will increase, and water vapor will come out of 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 return to the initial position. When the detection device detects that the silica gel particles in the auxiliary breathing tank change from blue to red, repeats the above steps.

[0010] The detection device includes an external shield, which is installed on one side of the mounting plate, an internal shield is rotatably installed inside the external shield, the internal shield is installed on a rotating shaft, a photosensor is installed inside the internal shield, a first light-transmitting hole is opened on the external shield, light-shielding tubes are installed in the two first light-transmitting holes, a second light-transmitting hole and a third light-transmitting hole are opened on the internal shield, the second light-transmitting hole, the third light-transmitting hole and the first light-transmitting hole are of the same size, the second light-transmitting hole, the third light-transmitting hole and the first light-transmitting hole are at the same height, the angle between the second light-transmitting hole and the third light-transmitting hole is 90°, and the photosensor is connected to the control system. When the detection device is in the initial position, the second light-transmitting hole is connected with the first light-transmitting hole, so that the photosensor can simultaneously collect the colored light reflected by the silica gel particles in the main breathing tank and the auxiliary breathing tank; when the motor is started, the motor drives the rotating shaft to rotate, and the rotating shaft drives the internal mask to rotate 90°, so that the third light-transmitting hole is connected with the first light-transmitting hole, so that the photosensor can only detect the colored 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 vent pipe is installed on one side of the cup cover, the vent pipe is installed on the outside of the cup body, the vent pipe is connected with the exhaust cavity, an air hole is provided on one side of the cup cover, the air hole is connected with the exhaust cavity, and the air hole is installed inside the cup body. When the transformer inhales, the gas in the atmosphere enters the exhaust cavity from the vent pipe, enters the cup body through the air hole, and the insulating oil in the cup body filters the impurities in the gas, and then the gas enters the connecting pipe. When the transformer exhales, the gas enters the cup body from the connecting pipe, enters the exhaust cavity from the air hole, and is discharged to the atmosphere from the vent pipe.

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

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The respirator of the present invention is designed with a lengthened pipeline. When the transformer inhales air, 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, thereby preventing the silica gel particles from being contaminated by the insulating oil. 2. The quick-release device of the present invention can quickly and efficiently remove the drying tank when the respirator needs maintenance or the silica gel particles need to be replaced after long-term use, saving labor costs and improving efficiency; 3. The respirator of the present invention has a dual-channel structure. When one of the respirators is maintained, it will automatically switch to the other respirator, which will not affect the protective effect of the respirator on the transformer. At the same time, the present invention has an automatic dehumidification structure, which can dehumidify the silica gel particles after moisture absorption, so that the silica gel particles can restore the drying function. The two respirators can be used alternately to achieve a maintenance-free effect; 4. When the respirator of the present invention is blocked, the gas in the respirator will push open the pressure relief valve to achieve the pressure relief effect. After the pressure relief is completed, the pressure relief valve will return to the initial position to seal the respirator, thereby avoiding damage to the transformer caused by blockage of the respirator. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a perspective view of a respirator of the present invention; Figure 2 A perspective view of the main breathing tank of the present invention; Figure 3 for Figure 2 Sectional view in the AA direction; Figure 4 is a cross-sectional view of the pressure relief valve of the present invention; Figure 5 is an internal schematic diagram of a pressure relief valve of the present invention; Figure 6 is a three-dimensional diagram of a first quick-release device of the present invention; Figure 7 A cross-sectional view of the first quick-release device and the second quick-release device of the present invention cooperating with each other; Figure 8 is a three-dimensional diagram of a heating device of the present invention; Fig. 9 An exploded view of the detection device of the present invention; Fig.10 It is a cross-sectional view of the oil cup of the present invention.

[0015] In the figure: 1. breathing tube; 2. rotary valve; 3. first exhaust pipe; 4. second exhaust pipe; 5. main breathing tank; 51. upper cover; 52. pressure relief valve; 521. valve housing; 522. sealing block; 523. sealing head; 524. connecting rod; 525. limit block; 526. spring; 527. limit plate; 53. silicone tank; 54. support plate; 55. first quick release device; 551. housing; 552. triangular block; 553. triangular groove; 554. semicircular block; 555. operating rod; 556. tension spring; 557. arc block; 558. cylinder; 559. semicircular groove; 56. second quick release Device; 57, pressure sensor; 58, anti-leakage net; 6, auxiliary breathing tank; 7, heating device; 71, mounting plate; 72, motor; 73, detection device; 731, external shield; 732, internal shield; 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 chamber; 124, ventilation pipe; 125, air hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] Example: Figure 1-Figure 10As shown, the present invention provides a technical solution, 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 tank 5 is installed at one end of the first exhaust pipe 3, an auxiliary breathing tank 6 is installed at one end of the second exhaust pipe 4, a heating device 7 is installed between the main breathing tank 5 and the auxiliary breathing tank 6, a first air intake pipe 8 is installed at one end of the main breathing tank 5, a second air intake pipe 9 is installed at one end of the auxiliary breathing tank 6, a reversing valve 10 is installed at one end of the first air intake pipe 8, one end of the second air intake pipe 9 is installed on the reversing valve 10, 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.

[0018] The rotary valve 2 can change the direction of gas entry, the main breathing tank 5 can absorb moisture in the air to prevent moisture in the air from entering the insulating oil of the transformer, the auxiliary breathing tank 6 can protect the transformer when the main breathing tank 5 is maintained, and the heating device 7 can dehumidify the silica gel particles when the moisture absorption capacity of the silica gel particles in the main breathing tank 5 and the auxiliary breathing tank 6 reaches the upper limit, so that the silica gel particles can restore the drying function, the reversing valve 10 can change the direction of gas exit, and the insulating oil in the oil cup 12 can filter out impurities in the gas to prevent impurities in the gas from contaminating the insulating oil in the transformer.

[0019] 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 groove, a pressure relief valve 52 is installed in the through groove, 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, an anti-leakage net 58 is installed on the inner wall of the silica gel tank 53, and the pressure sensor 57 is installed above the anti-leakage net 58. The auxiliary 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 anti-leakage net 58 can absorb moisture in the air.

[0020] 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 manually separated, 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. 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, and the gas pushes open the pressure relief valve 52, which releases the gas to prevent the main breathing tank 5 from being damaged.

[0021] The pressure relief valve 52 includes a valve housing 521, which is installed in the 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 is provided with 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 is provided with a sliding groove. A connecting rod 524 is slidably connected in the sliding 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 limiting block 525. One end of the limiting block 525 is provided with a spring 526. One end of the spring 526 is installed on the limiting block 525, and the spring 526 is sleeved on the connecting rod 524. When the air pressure in the silicone tank 53 increases, the gas moves upward against the limit block 525, and the limit block 525 drives the connecting rod 524 to move upward. The spring 526 contracts, and the connecting rod 524 drives the sealing head 523 to slide upward in the sealing groove. A gap is formed between the sealing head 523 and the sealing groove, and the gas is released from the gap.

[0022] When the air pressure in the silicone tank 53 decreases, the spring 526 stretches, and the spring 526 drives the limit block 525 to move downward, and the limit block 525 drives the connecting rod 524 to move downward, and the connecting rod 524 drives the sealing head 523 to move downward to the initial position, blocking the gap between the sealing head 523 and the sealing groove.

[0023] The first quick-release device 55 includes a shell 551, which is installed on one side of the upper cover 51. A triangular block 552 is connected to one end of the shell 551. A triangular groove 553, a semicircular groove 559 and a groove are provided on the shell 551. An arc block 557 is connected to the semicircular groove 559. A semicircular block 554 is rotatably connected to the semicircular groove 559. An arc groove is provided on the semicircular block 554. The arc block 557 slides in the arc groove. An operating rod 555 is connected to one end of the semicircular block 554. The operating rod 555 rotates in the groove. A cylinder 558 is connected to the groove. 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. When the silicone particles need to be replaced, the operating rod 555 is manually pulled away from the cylinder 558, and the operating rod 555 drives the semicircular block 554 to rotate in the semicircular groove 559. When the semicircular block 554 rotates until the bottom edge of the semicircular block 554 and the notch of the semicircular groove 559 are in the same plane, the first quick-release device 55 and the second quick-release device 56 will disengage, and the tension spring 556 will drive the operating rod 555 back to the initial position, so that the upper cover 51 and the silicone tank 53 can be separated.

[0024] When the replacement of the silica gel particles is completed, the triangular block 552 of the first quick-release device 55 is manually inserted into the triangular groove 553 of the second quick-release device 56, and 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, and the semicircular block 554 drives the operating rod 555 to rotate, and the operating rod 555 rotates in the direction away from the cylinder 558, and the operating rod 555 drives the tension spring 556 to stretch. When block 552 completely enters the triangular groove 553 of the second quick-release device 56, the semicircular block 554 will rotate until the bottom edge of the semicircular block 554 and the notch of the semicircular groove 559 are in the same plane, the tension spring 556 contracts, and the tension spring 556 drives the operating rod 555 to rotate in the direction close to 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 silicone tank 53.

[0025] The heating device 7 includes a mounting plate 71, which is mounted on the upper 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 collecting plate 74 is mounted on the rotating shaft. A fixing block 75 is mounted on one side of the heat collecting plate 74. An electric heating pipe 76 is mounted on the fixing block 75. The motor 72 and the electric heating pipe 76 are connected to the 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 intake pipe 9, and the transformer is protected by the auxiliary breathing tank 6, and controls the motor 72 to start. The motor 72 drives the shaft to rotate, and the shaft drives the heat collecting plate 74 to rotate 90°, so that the inner arc of the heat collecting plate 74 faces the main breathing tank 5, and controls the electric heating tube 76 to heat up. The heat collecting plate 74 can gather the heat radiation emitted by the electric heating tube 76 into the main breathing tank 5, and bake the silica gel particles in the main breathing tank 5. The air pressure in the main breathing tank 5 will increase, and water vapor will come out from the pressure relief valve 52.

[0026] 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 and controls the motor 72 to reverse, and the motor 72 drives the heat collecting plate 74 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.

[0027] The detection device 73 includes an external shield 731, which is installed on one side of the mounting plate 71. An internal shield 732 is rotatably installed inside the external shield 731, and the internal shield 732 is installed on a rotating shaft. A photosensitive sensor is installed in the internal shield 732. A first light-transmitting hole 734 is opened on the external shield 731, and a light-shielding tube 733 is installed in the two first light-transmitting holes 734. A second light-transmitting hole 735 and a third light-transmitting hole 736 are opened on the internal shield 732. The second light-transmitting hole 735, the third light-transmitting hole 736 and the first light-transmitting hole 734 are of the same size, and 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°, and the photosensitive sensor is connected to the control system. When the detection device 73 is in the initial position, the second light-transmitting hole 735 is connected with the first light-transmitting hole 734, so that the photosensor can simultaneously collect the colored 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, and the rotating shaft drives the internal mask 732 to rotate 90°, so that the third light-transmitting hole 736 is connected with the first light-transmitting hole 734, so that the photosensor can only detect the colored light reflected by the silica gel particles in the main breathing tank 5 or the auxiliary breathing tank 6.

[0028] The oil cup 12 includes a cup cover 121, which has a circular groove, in which the connecting pipe 11 is installed, a cup body 122 is installed below the cup cover 121, an exhaust cavity 123 is installed in the cup cover 121, a vent pipe 124 is installed on one side of the cup cover 121, the vent pipe 124 is installed on the outside of the cup body 122, the vent pipe 124 is connected to the exhaust cavity 123, an air hole 125 is opened on one side of the cup cover 121, the air hole 125 is connected to the exhaust cavity 123, and the air hole 125 is installed inside the cup body 122. When the transformer inhales, the gas in the atmosphere enters the exhaust chamber 123 from the vent pipe 124, and enters the cup body 122 through the air hole 125. After the insulating oil in the cup body 122 filters the impurities in the gas, 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 chamber 123 from the air hole 125, and is discharged into the atmosphere from the vent pipe 124.

[0029] Working principle of the present invention: When the transformer inhales, the gas in the atmosphere enters the exhaust chamber 123 from the ventilation pipe 124, and enters the cup body 122 through the air hole 125. After the insulating oil in the cup body 122 filters the impurities in the gas, the gas enters the reversing valve 10 through the connecting pipe 11, and the gas enters the silica gel tank 53 of the main breathing tank 5 through the first air inlet pipe 8. After the silica gel particles in the silica gel tank 53 absorb the moisture in the gas, the gas enters the rotary valve 2 through the first exhaust pipe 3, and finally enters the transformer through the breathing tube 1.

[0030] When the transformer exhales, the gas enters the rotary valve 2 through the breathing tube 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 air 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 into the atmosphere from the ventilation pipe 124.

[0031] When the photosensor 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 intake pipe 9, and the transformer is protected by the auxiliary breathing tank 6, and the motor 72 is controlled to start. The motor 72 drives the shaft to rotate, and the shaft drives the internal mask 732 to rotate 90°, so that the third light-transmitting hole 736 is connected to the first light-transmitting hole 734, so that the photosensor can only detect the color light reflected by the silica gel particles in the main breathing tank 5. The shaft also drives the heat collecting plate 74 to rotate 90°, so that the inner arc of the heat collecting plate 74 faces the main breathing tank 5, and controls the electric heating tube 76 to heat up. The heat collecting plate 74 can gather the heat radiation emitted by the electric heating tube 76 into the main breathing tank 5, bake the silica gel particles in the main breathing tank 5, and the air pressure in the main breathing tank 5 will increase.

[0032] When the air pressure in the silicone tank 53 increases, the gas moves upward against the limit block 525, and the limit block 525 drives the connecting rod 524 to move upward. The spring 526 contracts, and the connecting rod 524 drives the sealing head 523 to slide upward in the sealing groove. A gap is formed between the sealing head 523 and the sealing groove, and the gas is released from the gap.

[0033] When the photosensor 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 decreases, the spring 526 stretches, the spring 526 drives the limit block 525 to move downward, the limit 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, blocking the gap between the sealing head 523 and the sealing groove, the control system controls the motor 72 to reverse, the motor 72 drives the heat collecting plate 74 to return to the initial position, and when the photosensor detects that the silica gel particles in the auxiliary breathing tank 6 turn from blue to red, the above steps are repeated.

[0034] When the silicone particles need to be replaced after being used for a long time, the operating rod 555 is manually pulled in the direction away from the cylinder 558, and the operating rod 555 drives the semicircular block 554 to rotate in the semicircular groove 559. When the semicircular block 554 rotates until the bottom edge of the semicircular block 554 and the notch of the semicircular groove 559 are in the same plane, the first quick-release device 55 and the second quick-release device 56 will disengage, and the tension spring 556 will drive the operating rod 555 back to the initial position, so that the upper cover 51 and the silicone tank 53 can be separated, and the silicone particles in the silicone tank 53 can be replaced.

[0035] When the replacement of the silica gel particles is completed, the triangular block 552 of the first quick-release device 55 is manually inserted into the triangular groove 553 of the second quick-release device 56, and 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, and the semicircular block 554 drives the operating rod 555 to rotate, and the operating rod 555 rotates in the direction away from the cylinder 558, and the operating rod 555 drives the tension spring 556 to stretch. When block 552 completely enters the triangular groove 553 of the second quick-release device 56, the semicircular block 554 will rotate until the bottom edge of the semicircular block 554 and the notch of the semicircular groove 559 are in the same plane, the tension spring 556 contracts, and the tension spring 556 drives the operating rod 555 to rotate in the direction close to 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 silicone tank 53.

[0036] When the main breathing tank 5 is blocked, the air pressure in the silica gel tank 53 increases, and the gas moves upward against the limit block 525. The limit block 525 drives the connecting rod 524 to move upward, the spring 526 contracts, and the connecting rod 524 drives the sealing head 523 to slide upward in the sealing groove. A gap is formed between the sealing head 523 and the sealing groove, and the gas is released from the gap to prevent the main breathing tank 5 from being damaged. When the pressure sensor 57 senses that the air 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 controls the reversing valve 10 to start, so that the gas is discharged from the second intake pipe 9, and the transformer is protected by the auxiliary breathing tank 6.

[0037] When the pressure relief of the silicone tank 53 is completed, the air pressure in the silicone tank 53 decreases, the spring 526 stretches, the spring 526 drives the limit block 525 to move downward, the limit 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, blocking the gap between the sealing head 523 and the sealing groove, so that the silicone tank 53 is isolated from the outside air.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A respirator for a transformer double helix channel, characterized in that: The respirator comprises 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 tank (5) is installed at one end of the first exhaust pipe (3), an auxiliary breathing tank (6) is installed at one end of the second exhaust pipe (4), a heating device (7) is installed between the main breathing tank (5) and the auxiliary breathing tank (6), a first air intake pipe (8) is installed at one end of the main breathing tank (5), a second air intake pipe (9) is installed at one end of the auxiliary breathing tank (6), a reversing valve (10) is installed at one end of the first air intake pipe (8), one end of the second air intake pipe (9) is installed on the reversing valve (10), 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 a control system.

2. A respirator for a transformer double helix channel according to claim 1, characterized in that: The main breathing tank (5) comprises an upper cover (51), the first exhaust pipe (3) is mounted on the upper cover (51), the heating device (7) is mounted on the upper cover (51), the upper cover (51) is provided with a through groove, a pressure relief valve (52) is mounted in the through groove, a silica gel tank (53) is mounted below the upper cover (51), a support plate (54) is mounted on the outer wall of the silica gel tank (53), a first quick-release device (55) is mounted below the upper cover (51), a second quick-release device (56) is mounted 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 mounted on the inner wall of the silica gel tank (53), an anti-leakage net (58) is mounted on the inner wall of the silica gel tank (53), the pressure sensor (57) is mounted above the anti-leakage net (58), the auxiliary breathing tank (6) has the same structure as the main breathing tank (5), and the pressure sensor (57) is connected to a control system.

3. A respirator for a transformer double helix channel according to claim 2, characterized in that: The pressure relief valve (52) comprises a valve housing (521), the valve housing (521) being mounted in a through groove of an upper cover (51), a sealing block (522) being mounted on an inner wall of the valve housing (521), the sealing block (522) being provided with a sealing groove, a limiting plate (527) being mounted below the sealing block (522), the limiting plate (527) being mounted on an inner wall of the valve housing (521), the limiting plate (527) being provided with a sliding groove, the sliding groove A connecting rod (524) is slidably connected in the movable groove, one end of the connecting rod (524) is connected to a sealing head (523), the sealing head (523) is installed in the sealing groove, the other end of the connecting rod (524) is connected to a limiting block (525), one end of the limiting block (525) is installed with a spring (526), ​​one end of the spring (526) is installed on the limiting block (525), and the spring (526) is sleeved on the connecting rod (524).

4. A respirator for a transformer double helix channel according to claim 3, characterized in that: The first quick-release device (55) comprises a shell (551), the shell (551) being mounted on one side of the upper cover (51), one end of the shell (551) being connected to a triangular block (552), the shell (551) being provided with a triangular groove (553), a semicircular groove (559) and a groove, an arc block (557) being connected to the semicircular groove (559), a semicircular block (554) being rotatably connected to the semicircular groove (559), an arc groove being formed on the semicircular block (554), the arc block (557) sliding in the arc groove, one end of the semicircular block (554) being connected to an operating rod (555), the operating rod (555) rotating in the groove, a cylinder (558) being connected to the groove, a tension spring (556) being installed between the cylinder (558) and the operating rod (555), and the second quick-release device (56) having the same structure as the first quick-release device (55).

5. A respirator for a transformer double helix channel according to claim 4, characterized in that: The heating device (7) comprises a mounting plate (71), the mounting plate (71) being mounted on the upper cover (51), a motor (72) being mounted on one side of the mounting plate (71), a rotating shaft being mounted on the output end of the motor (72), a detection device (73) being mounted on the rotating shaft, the detection device (73) being mounted on one side of the mounting plate (71), a heat collecting plate (74) being mounted on the rotating shaft, a fixing block (75) being mounted on one side of the heat collecting plate (74), an electric heating pipe (76) being mounted on the fixing block (75), and the motor (72) and the electric heating pipe (76) being connected to a control system.

6. A respirator for a transformer double helix channel according to claim 5, characterized in that: The detection device (73) comprises an external shield (731), the external shield (731) being mounted on one side of the mounting plate (71), an internal shield (732) being rotatably mounted inside the external shield (731), the internal shield (732) being mounted on a rotating shaft, a photosensitive sensor being mounted inside the internal shield (732), a first light-transmitting hole (734) being formed on the external shield (731), and light-shielding tubes (733) being mounted in two of the first light-transmitting holes (734). ), a second light-transmitting hole (735) and a third light-transmitting hole (736) are provided on the internal mask (732), the second light-transmitting hole (735), the third light-transmitting hole (736) and the first light-transmitting hole (734) are of 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°, and the light-sensitive sensor is connected to a control system.

7. A respirator for a transformer double helix channel according to claim 6, characterized in that: The oil cup (12) comprises a cup cover (121), the cup cover (121) being provided with a circular groove, the connecting pipe (11) being installed in the circular groove, a cup body (122) being installed below the cup cover (121), an exhaust cavity (123) being installed in the cup cover (121), a vent pipe (124) being installed on one side of the cup cover (121), the vent pipe (124) being installed outside the cup body (122), the vent pipe (124) being communicated with the exhaust cavity (123), and an air hole (125) being provided on one side of the cup cover (121), the air hole (125) being communicated with the exhaust cavity (123), and the air hole (125) being installed inside the cup body (122).

8. A respirator for a transformer double helix channel according to claim 7, characterized in that: The silica gel tank (53) is made of glass.

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