An adjustable assembled transformer

Abstract

The application belongs to the technical field of transformers, and discloses an adjustable assembly type transformer, which comprises a transformer main body, the top of the transformer main body is provided with an oil pillow in communication, and further comprises a supporting assembly which is fixed to the side of the transformer main body and is in communication with the oil pillow. The exhaust channel of the receiving pipe is in communication with the connecting pipe. When the weight of the drying agent in the receiving pipe in communication with the connecting pipe reaches a set value, the magnetic force of the first magnet cannot satisfy the adsorption and fixation of the receiving pipe, the receiving pipe rotates around the fixed shaft rod as the central axis, the saturated silica gel drying agent rotates to the bottom end of the fixed shell, the next receiving pipe is adsorbed by the first magnet and is in communication with the connecting pipe through the exhaust channel, and the drying agent in the next receiving pipe can dry the inhaled gas. In this process, the frequency of replacing the drying agent in the respirator can be reduced, and the cost of maintaining the respirator can be reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transformers, and particularly relates to an adjustable assembly type transformer. BACKGROUND

[0002] A transformer is a kind of static electrical equipment working on the principle of electromagnetic induction, mainly used for voltage conversion (voltage increase or decrease) of alternating current and keeping the frequency unchanged, and its core functions include power transmission and voltage level matching, and is widely used in power systems, electronic devices and industrial fields. The main structure of the transformer includes a core, a winding, an insulation cooling system, an oil tank, an oil pillow, a breather and a gas relay and the like. In the running process, the oil temperature of the transformer will change with the load change and the environmental temperature fluctuation (such as day and night temperature difference or overload), resulting in the expansion or contraction of the insulating oil. The function of the oil pillow is to provide a buffer space to balance the internal pressure of the oil tank, so as to prevent oil leakage or oil tank deformation. The breather, as a key component of the oil pillow, has the functions of air pressure balance and air filtration, which can not only adjust the air pressure inside and outside the oil pillow, but also prevent impurities such as moisture and dust from entering the oil system, so as to avoid oil quality deterioration and insulation performance decline.

[0003] The Chinese invention patent with the publication number CN107240483B discloses a transformer breather, which comprises a flange plate, a breather top cover, a connecting rod, a breather shell, a transparent bottom cover and an oil cup. The flange plate is integrally connected with the breather top cover, the breather top cover is provided with a charging port, the charging port is provided with a detachable plug, the breather shell is fixedly installed with the breather top cover, the lower end of the breather shell is provided with a horizontal baffle, the outer edge of the horizontal baffle is sleeved with a sleeve, the bottom of the horizontal baffle is fixedly installed with a breathing sleeve, the bottom of the breathing sleeve is wrapped with a separation net with a circular hole in the middle, the separation net is detachably fixed on the breathing sleeve along the circumference, and the oil cup is fixedly installed on the inner wall of the lower part of the sleeve. The present application has reasonable and compact structure, and the use of the buckle structure does not need to disassemble the whole transformer breather, effectively shortens the time for replacing silica gel, reduces the main transformer gas protection exit time, and improves the safe operation condition of the main transformer.

[0004] At present, silica gel is generally used as a drying agent in the breather to ensure that the air entering the oil pillow is dry. When the silica gel is saturated after absorbing moisture, the buckle structure is used to replace the new silica gel without disassembling the whole transformer breather. The oil cup, the transparent bottom cover and the separation net are sequentially taken down, the damp silica gel falls from the breathing sleeve due to the action of gravity, the separation net, the transparent bottom cover and the oil cup are sequentially installed, and finally the dry silica gel is put into the charging port, and the silica gel replacement work is completed. In this process, the transformer breather still needs to be manually disassembled and replaced, which increases the maintenance cost of the transformer breather. Therefore, the present application proposes an adjustable assembly type transformer. SUMMARY

[0005] To solve the problems in the background art, the application provides an adjustable assembly type transformer, which solves the problem that the existing transformer breather needs to be disassembled and replaced with new silica gel without using a buckle structure after the silica gel is saturated.

[0006] To achieve the above object, the application provides the following technical scheme: an adjustable assembly type transformer, comprising a transformer main body, an oil pillow communicated with the top of the transformer main body, and

[0007] a support assembly fixed to the side of the transformer main body, the support assembly being communicated with the oil pillow;

[0008] a drying assembly movably arranged in the support assembly;

[0009] a transmission assembly fixed to the drying assembly;

[0010] The support assembly comprises a fixed shell fixed to the side of the transformer main body, the outside of the fixed shell being communicated with the oil pillow through a connecting pipe, and the outside of the fixed shell being communicated with the outside through an oil seal glass cylinder;

[0011] The middle part of the fixed shell is fixed with a fixed shaft;

[0012] The drying assembly comprises a cross support frame sleeved on the outside of the fixed shaft, four ends of the cross support frame being fixed with receiving pipes, the outside of the receiving pipes being provided with exhaust grooves and air inlet grooves, and the inside of the receiving pipes being provided with silica gel desiccants;

[0013] The inner wall of the fixed shell is provided with a first magnet, the receiving pipe is adsorbed with the first magnet, and the receiving pipe is communicated with the connecting pipe through the exhaust grooves.

[0014] Preferably, the periphery of the receiving pipe is in contact with the inner wall of the fixed shell;

[0015] When the receiving pipe is rotated and communicated with the connecting pipe, the outside air enters the fixed shell through the oil seal glass cylinder, contacts the silica gel desiccants in the storage mesh cylinder through the air inlet grooves, and enters the oil pillow through the exhaust grooves and the connecting pipe.

[0016] Preferably, one end of the connecting pipe is fixed with an electromagnetic valve, and when the desiccants in the receiving pipe are adsorbed and saturated, the desiccants are separated from the connecting pipe, and at this time, the electromagnetic valve is powered off, and the connecting pipe is disconnected from the fixed shell.

[0017] Preferably, the transmission assembly comprises an arc-shaped sealing plate hinged in the air inlet groove, and one end of the air inlet groove is fixed with a second magnet;

[0018] The arc-shaped blocking plate is made of iron material;

[0019] When the receiving pipe is rotated to communicate with the connecting pipe, the arc-shaped blocking plate is separated from the second magnet under the action of its own weight, so that the air inlet channel is in an open state.

[0020] Preferably, the four corners of the cross-shaped support frame are each provided with a stabilizing frame, and the stabilizing frame is further provided with a baffle.

[0021] When the receiving pipe communicates with the connecting pipe, the arc-shaped blocking plate is supported by the baffle, so that the air inlet channel is in an open state, and with the continuous rotation of the receiving pipe to a vertical state, the arc-shaped blocking plate is adsorbed to the second magnet under the action of the baffle to block the air inlet channel.

[0022] Preferably, the inner wall of the receiving pipe is provided with a guide groove, and the receiving pipe is provided with a storage mesh cylinder, and the storage mesh cylinder is slidably arranged in the guide groove through a guide rod.

[0023] The silica gel desiccant is arranged in the inside of the storage mesh cylinder.

[0024] Preferably, the side of the cross-shaped support frame is provided with a connecting piece, the connecting piece is movably arranged on the inner wall of the fixed shell, and the connecting piece is provided with an electric heating device.

[0025] One end of the storage mesh cylinder is provided with a circular hole, and the electric heating device is arranged in the inside of the storage mesh cylinder through the circular hole.

[0026] Preferably, the bottom of the fixed shaft rod is provided with a rectangular through hole, and the fixed shaft rod and the cross-shaped support frame are both hollow structures.

[0027] One end of the fixed shaft rod is provided with a one-way valve in communication with the outside.

[0028] When the two receiving pipes are in a vertical state, the receiving pipes are in communication with the fixed shaft rod through the cross-shaped support frame and the rectangular through hole.

[0029] Compared with the prior art, the present application has the following advantages:

[0030] The application realizes the pressure balance in the oil tank by the exhaust channel of the receiving pipe and the connecting pipe, the gas enters the receiving pipe through the air inlet channel and contacts the silica gel desiccant, the moisture in the gas is adsorbed by the silica gel desiccant, and the dried gas enters the oil pillow through the exhaust channel and the connecting pipe, so that the pressure in the oil tank is balanced, with the continuous passing of external gas through the silica gel desiccant, the moisture adsorbed by the silica gel desiccant gradually increases, and with the gradual increase of the weight, when the weight of the desiccant in the receiving pipe communicated with the connecting pipe reaches the set value, the magnetic force of the first magnet cannot satisfy the adsorption and fixation of the receiving pipe, the receiving pipe will rotate around the fixed shaft as the central axis, and the saturated silica gel desiccant will rotate to the bottom end of the fixed shell, the next receiving pipe is adsorbed by the first magnet and communicated with the connecting pipe through the exhaust channel, so that the next receiving pipe can dry the inhaled gas through the desiccant in the next receiving pipe, and the frequency of replacing the desiccant in the respirator can be reduced, and the cost of respirator maintenance is reduced;

[0031] When the desiccant is saturated and in a vertical state, the receiving pipe is communicated with the fixed shaft through the cross support frame and the rectangular through hole, at this time, the exhaust channel is in contact with the inner wall of the fixed shell in a closed state, and the arc-shaped plugging plate plugs the air inlet channel, at this time, the electric heating device is powered on to heat the desiccant in the storage net cylinder, the temperature of the desiccant continues to rise, the adsorbed moisture gradually vaporizes and floats into the fixed shaft through the cross support frame, and with the gradual increase of the water vapor, the internal pressure continues to increase, so that the one-way valve is in an open state, and the water vapor can be discharged, and the dried desiccant can continue to be used, so that the frequency of replacing the desiccant is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall appearance structure of the application;

[0033] Figure 2 It is a schematic diagram of the appearance structure of the support assembly of the application;

[0034] Figure 3 It is a schematic diagram of the internal structure of the support assembly of the application;

[0035] Figure 4 It is a schematic diagram of the internal structure of the support assembly of the application; Figure 3 It is a schematic diagram of the enlarged structure at A in the application;

[0036] Figure 5 It is a schematic diagram of the enlarged structure at B in the application; Figure 3

[0037] Figure 6 It is a schematic diagram of the cross-sectional structure of the support assembly and the drying assembly of the application;

[0038] Figure 7 It is a schematic diagram of the appearance structure of the drying assembly and the transmission assembly of the application; ​

[0039] Figure 8 This is a disassembled structural diagram of the support component, drying component, and transmission component of the present invention;

[0040] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C;

[0041] Figure 10 This is a schematic diagram showing the disassembled structure of the drying component and transmission component of the present invention.

[0042] In the diagram: 1. Transformer body; 2. Oil conservator; 3. Support assembly; 31. Fixed housing; 32. Cover plate; 33. Oil seal glass cylinder; 34. Connecting pipe; 35. Solenoid valve; 36. Fixed shaft; 37. Rectangular through hole; 38. One-way valve; 4. Drying assembly; 41. Cross support frame; 42. Receiving pipe; 43. Storage mesh cylinder; 44. Guide rod; 45. Exhaust duct; 46. Guide duct; 47. First magnet; 48. Second magnet; 49. Inlet duct; 411. Connector; 412. Heating element; 5. Transmission assembly; 51. Stabilizer; 52. Baffle; 53. Arc-shaped sealing plate. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] like Figures 1 to 10 As shown, the present invention provides an adjustable assembled transformer, including a transformer body 1, an oil conservator 2 connected to the top of the transformer body 1, and further including:

[0045] Support component 3 is fixedly installed on the side of transformer body 1 and is connected to oil tank 2;

[0046] Drying component 4 is movably disposed inside the support component 3;

[0047] Transmission assembly 5 is fixedly mounted on drying assembly 4;

[0048] Among them, the support component 3 includes a fixed housing 31 fixed to the side of the transformer body 1. The outside of the fixed housing 31 is connected to the oil tank 2 through a connecting pipe 34, and the outside of the fixed housing 31 is connected to the outside through an oil-sealed glass cylinder 33.

[0049] A fixed shaft 36 is fixedly mounted in the middle of the fixed housing 31;

[0050] The drying assembly 4 includes a cross support frame 41 sleeved on the outside of the fixed shaft 36. Each of the four ends of the cross support frame 41 is fixed with a receiving pipe 42. The outside of the receiving pipe 42 is provided with an exhaust groove 45 and an intake groove 49. The inside of the receiving pipe 42 is provided with silica gel desiccant.

[0051] The inner wall of the fixed housing 31 is provided with a first magnet 47, the receiving pipe 42 is attracted to the first magnet 47, and is connected to the connecting pipe 34 through the exhaust groove 45;

[0052] The outer periphery of the receiving pipe 42 contacts the inner wall of the fixed housing 31;

[0053] When the receiving pipe 42 rotates and connects with the connecting pipe 34, the outside gas enters the fixed housing 31 through the oil-sealed glass cylinder 33, contacts the silica gel desiccant in the storage mesh cylinder 43 through the air inlet groove 49, and enters the oil conservator 2 through the exhaust groove 45 and the connecting pipe 34.

[0054] A solenoid valve 35 is fixedly installed at one end of the connecting pipe 34. After the desiccant in the receiving pipe 42 is saturated, it disconnects from the connecting pipe 34. At this time, the solenoid valve 35 is de-energized, the connecting pipe 34 is disconnected, and it is connected to the fixed housing 31.

[0055] Initially, the exhaust channel 45 of one of the bearing pipes 42 is connected to the connecting pipe 34. When the transformer oil changes from high temperature expansion to normal pressure, the outside gas enters the fixed housing 31 through the oil seal glass cylinder 33 and is located in the sealed cavity formed by the two bearing pipes 42, the cross support frame 41, and the fixed housing 31. The gas enters the bearing pipe 42 through the air inlet channel 49 and comes into contact with the silica gel desiccant. The silica gel desiccant adsorbs the moisture in the gas. The dried gas enters the oil tank 2 through the exhaust channel 45 and the connecting pipe 34, thereby balancing the pressure in the oil tank. As the outside gas continues to pass through the silica gel desiccant, the water adsorbed by the silica gel desiccant... As the weight gradually increases, once the weight of the desiccant in the receiving pipe 42 connected to the connecting pipe 34 reaches the set value, the magnetic force of the first magnet 47 is no longer sufficient to attract and fix the receiving pipe 42. The receiving pipe 42 will rotate around the fixed shaft 36 as the central axis, and the saturated silica gel desiccant will rotate to the bottom of the fixed housing 31. The next receiving pipe 42 will be attracted by the first magnet 47 and connected to the connecting pipe 34 through the exhaust channel 45. In this way, the desiccant in the next receiving pipe 42 can be used to dry the inhaled gas. In this process, the frequency of replacing the desiccant in the respirator can be reduced, thereby reducing the maintenance cost of the respirator.

[0056] like Figures 7-9 As shown, the transmission assembly 5 includes an arc-shaped sealing plate 53 hinged in the air intake channel 49, and a second magnet 48 is fixedly installed at one end of the air intake channel 49.

[0057] The arc-shaped blocking plate 53 is made of iron;

[0058] When the receiving pipe 42 is rotated to communicate with the connecting pipe 34, the arc-shaped blocking plate 53 is separated from the second magnet 48 under the action of its own weight, so that the air inlet channel 49 is in an open state;

[0059] The four corners of the cross-shaped support frame 41 are each fixedly provided with a stabilizing frame 51, and the stabilizing frame 51 is each fixedly provided with a baffle 52;

[0060] When the receiving pipe 42 communicates with the connecting pipe 34, the arc-shaped blocking plate 53 is rotated and supported by the baffle 52, so that the air inlet channel 49 is in an open state. With the continuous rotation of the receiving pipe 42 to a vertical state, the arc-shaped blocking plate 53 is adsorbed to the second magnet 48 under the action of the baffle 52 to block the air inlet channel 49.

[0061] Initially, one receiving pipe 42 is in a horizontal state and in contact with the first magnet 47 for adsorption, and communicates with the connecting pipe 34 through the air outlet channel 45. The arc-shaped blocking plate 53 rotates around the hinge of the receiving pipe 42 as the center axis under the action of its own weight, and the arc-shaped blocking plate 53 is in contact with the baffle 52, so that the air inlet channel 49 is in an open state. The gas in the outside world that enters the fixed housing 31 through the oil-sealed glass cylinder 33 can enter the receiving pipe 42 through the air inlet channel 49 and contact the drying agent, and the moisture in the gas is adsorbed by the drying agent;

[0062] When the drying agent in the receiving pipe 42 that communicates with the connecting pipe 34 is saturated, the weight increases, causing the cross-shaped support frame 41 and the receiving pipe 42 to rotate around the fixed shaft 36 as the center axis, and the receiving pipe 42 is lowered to communicate with the connecting pipe 34. The saturated drying agent is in a vertical state. During the rotation process, the arc-shaped blocking plate 53 is limited by the baffle 52, and the arc-shaped blocking plate 53 gradually rotates in the opposite direction and is in contact with the second magnet 48 for adsorption to block the air inlet channel 49.

[0063] As shown in Figures 6-10 The inner wall of the receiving pipe 42 is provided with a guide groove 46, and the receiving pipe 42 is sleeved with a storage mesh cylinder 43, and the storage mesh cylinder 43 slides in the guide groove 46 through a guide rod 44;

[0064] The silica gel drying agent is located in the inside of the storage mesh cylinder 43;

[0065] The side of the cross-shaped support frame 41 is fixedly provided with a connecting piece 411, and the connecting piece 411 is movable in the inner wall of the fixed housing 31. The connecting piece 411 is provided with an electric heating device 412;

[0066] One end of the storage mesh cylinder 43 is provided with a circular hole, and the electric heating device 412 passes through the circular hole and is located in the inside of the storage mesh cylinder 43;

[0067] The bottom of the fixed shaft rod 36 is provided with a rectangular through hole 37, and the fixed shaft rod 36 and the cross support frame 41 are both hollow structures.

[0068] One end of the fixed shaft rod 36 is provided with a one-way valve 38 in communication with the outside;

[0069] When the two opposite receiving pipes 42 are in a vertical state, the receiving pipe 42 is in communication with the fixed shaft rod 36 through the cross support frame 41 and the rectangular through hole 37.

[0070] When the desiccant is saturated and in a vertical state, the receiving pipe 42 is in communication with the fixed shaft rod 36 through the cross support frame 41 and the rectangular through hole 37, at this time, the exhaust groove 45 is in a closed state in contact with the inner wall of the fixed shell 31, and the arc-shaped sealing plate 53 seals the air inlet groove 49, at this time, the electric heating device 412 is powered on to heat the desiccant in the storage mesh cylinder 43, the temperature of the desiccant continues to rise, the absorbed water gradually vaporizes and floats through the cross support frame 41 into the fixed shaft rod 36, and as the water vapor gradually increases, the internal pressure continues to increase, so that the one-way valve 38 is in an open state, that is, the water vapor can be discharged, and the dried desiccant continues to be used in circulation, thereby reducing the frequency of replacing the desiccant.

[0071] It is explained that the most common blue or orange silica gel, the drying temperature is recommended to be controlled at 120-150 DEG C, and the time is about 2-4 hours until the original color is restored, the blue silica gel changes from pink to blue, and the orange silica gel changes from transparent to orange.

[0072] The working principle and use process of the present application are as follows:

[0073] The exhaust channel 45 of the initial state one receiving pipe 42 is in communication with the connecting pipe 34, and when the transformer oil is expanded at high temperature and converted to normal pressure, the gas from the outside enters the fixed housing 31 through the oil seal glass cylinder 33 and is located in the sealed cavity formed by the two receiving pipes 42, the cross support frame 41 and the fixed housing 31. The gas enters the receiving pipe 42 and contacts the silica gel desiccant through the air inlet channel 49, and the moisture in the gas is adsorbed by the silica gel desiccant. The dried gas enters the oil pillow 2 through the exhaust channel 45 and the connecting pipe 34, thereby balancing the pressure in the oil tank. As the outside gas continues to pass through the silica gel desiccant, the moisture adsorbed by the silica gel desiccant gradually increases, and as the weight gradually increases, when the weight of the desiccant in the receiving pipe 42 connected with the connecting pipe 34 reaches a set value, the magnetic force of the first magnet 47 cannot satisfy the adsorption and fixation of the receiving pipe 42. The receiving pipe 42 will rotate around the fixed shaft 36 as the center axis, and the saturated silica gel desiccant will rotate to the bottom end of the fixed housing 31. The next receiving pipe 42 is adsorbed by the first magnet 47 and connected with the connecting pipe 34 through the exhaust channel 45. In this way, the next receiving pipe 42 can dry the inhaled gas through the desiccant in the receiving pipe 42. In this process, the frequency of replacing the desiccant in the respirator can be reduced, thereby reducing the cost of respirator maintenance.

[0074] One receiving pipe 42 is in contact with the first magnet 47 and is adsorbed in a horizontal state, and is connected with the connecting pipe 34 through the exhaust channel 45. The arc-shaped blocking plate 53 rotates around the hinge with the receiving pipe 42 as the center axis under the action of its own weight, and is in contact with the baffle 52, so that the air inlet channel 49 is in an open state. The gas entering the fixed housing 31 from the outside through the oil seal glass cylinder 33 can enter the receiving pipe 42 through the air inlet channel 49 and contact the desiccant, and the moisture in the gas is adsorbed by the desiccant.

[0075] When the desiccant in the receiving pipe 42 connected with the connecting pipe 34 is saturated, the cross support frame 41 and the receiving pipe 42 rotate around the fixed shaft 36 as the center axis, and the receiving pipe 42 is connected with the connecting pipe 34, and the saturated desiccant is in a vertical state. During the rotation process, the arc-shaped blocking plate 53 is limited by the baffle 52, and the arc-shaped blocking plate 53 gradually reverses and is in contact with the second magnet 48 to block the air inlet channel 49.

[0076] When the desiccant is saturated and in vertical state, the receiving pipe 42 is communicated with the fixed shaft 36 through the cross support frame 41 and the rectangular through hole 37, at this time, the exhaust groove 45 is in closed state with the inner wall of the fixed shell 31, and the arc-shaped sealing plate 53 seals the air inlet groove 49, at this time, the electric heating device 412 is powered on to heat the desiccant in the storage mesh cylinder 43, the temperature of the desiccant continues to rise, the absorbed water gradually vaporizes and floats through the cross support frame 41 into the fixed shaft 36, and with the gradual increase of the water vapor, the internal pressure continues to increase, so that the one-way valve 38 is in open state, that is, the water vapor can be discharged, and the dried desiccant continues to be used, thereby reducing the frequency of replacing the desiccant.

[0077] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0078] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, alternatives, and variations can be made in the embodiments without departing from the spirit and scope of the present application as defined by the appended claims and their equivalents.

Claims

1. An adjustable assembled transformer comprising a transformer body (1), the top of which is provided with an oil conservator (2) in communication, characterized in that, Also includes: Supporting assembly (3), the supporting assembly (3) is fixed to the side of the transformer body (1), the supporting assembly (3) is communicated with the oil pillow (2); Drying assembly (4), the drying assembly (4) is movably arranged in the inside of the supporting assembly (3); Transmission assembly (5), the transmission assembly (5) is fixed to the drying assembly (4); Wherein, the supporting assembly (3) includes a fixed housing (31) fixed to the side of the transformer body (1), the outside of the fixed housing (31) is communicated with the oil pillow (2) through the connecting pipe (34), the outside of the fixed housing (31) is communicated with the outside through the oil seal glass cylinder (33); The middle part of the fixed housing (31) is fixed with a fixed shaft (36); The drying assembly (4) includes a cross support frame (41) sleeved on the outside of the fixed shaft (36), the four ends of the cross support frame (41) are fixed with a receiving pipe (42), the outside of the receiving pipe (42) is provided with an exhaust passage (45) and an air inlet passage (49), and the inside of the receiving pipe (42) is provided with silica gel desiccant; The inner wall of the fixed housing (31) is provided with a first magnet (47), the receiving pipe (42) is adsorbed with the first magnet (47), and is communicated with the connecting pipe (34) through the exhaust passage (45).

2. The tunable packaged transformer of claim 1, wherein: The periphery of the receiving pipe (42) is in contact with the inner wall of the fixed housing (31); When the receiving pipe (42) rotates and is communicated with the connecting pipe (34), the outside air enters the fixed housing (31) through the oil seal glass cylinder (33) at this time, contacts the silica gel desiccant in the storage net cylinder (43) through the air inlet passage (49), and enters the oil pillow (2) through the exhaust passage (45) and the connecting pipe (34).

3. The tunable packaged transformer of claim 1, wherein: One end of the connecting pipe (34) is fixed with an electromagnetic valve (35), after the desiccant in the receiving pipe (42) is saturated and separated from the connecting pipe (34), the electromagnetic valve (35) is deenergized to disconnect the connecting pipe (34) and the fixed housing (31).

4. The tunable packaged transformer of claim 1, wherein: The transmission assembly (5) includes an arc-shaped sealing plate (53) hinged in the air inlet passage (49), one end of the air inlet passage (49) is fixed with a second magnet (48); The arc-shaped sealing plate (53) is made of iron material; When the receiving pipe (42) rotates to be communicated with the connecting pipe (34), the arc-shaped sealing plate (53) is separated from the second magnet (48) under the action of its own weight, so that the air inlet passage (49) is in an open state.

5. The tunable packaged transformer of claim 4, wherein: Four corners of the cross support frame (41) are fixed with a stabilizing frame (51), and the stabilizing frame (51) is fixed with a baffle (52); When the receiving pipe (42) is communicated with the connecting pipe (34), the arc-shaped sealing plate (53) rotates and is supported by the baffle (52), so that the air inlet passage (49) is in an open state, and as the receiving pipe (42) continuously rotates to be vertical, the arc-shaped sealing plate (53) is adsorbed with the second magnet (48) under the action of the baffle (52) to block the air inlet passage (49).

6. The tunable packaged transformer of claim 1, wherein: The inner wall of the receiving pipe (42) is provided with a guide groove (46), the inside of the receiving pipe (42) is sleeved with a storage mesh cylinder (43), the storage mesh cylinder (43) is slidably arranged in the guide groove (46) through a guide rod (44); The silica gel desiccant is located in the inside of the storage mesh cylinder (43).

7. The tunable packaged transformer of claim 6, wherein: The side of the cross support frame (41) is fixedly connected with a connecting piece (411), the connecting piece (411) is movably arranged in the inner wall of the fixed shell (31), and the connecting piece (411) is provided with an electric heating device (412); One end of the storage mesh cylinder (43) is provided with a circular hole, and the electric heating device (412) is located in the inside of the storage mesh cylinder (43) through the circular hole.

8. The tunable packaged transformer of claim 7, wherein: The bottom of the fixed shaft rod (36) is provided with a rectangular through hole (37), and the fixed shaft rod (36) and the cross support frame (41) are both hollow structures; One end of the fixed shaft rod (36) is provided with a one-way valve (38) in communication with the outside; When the two receiving pipes (42) are in a vertical state, the receiving pipes (42) are in communication with the fixed shaft rod (36) through the cross support frame (41) and the rectangular through hole (37).

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