Transformer breathing drying device

Abstract

The present invention relates to the field of electric power auxiliary apparatuses. Disclosed is a transformer breathing drying device, comprising a drying mechanism which comprises a bottom plate, a silica gel tank located on one side of the surface of the bottom plate, a heating plate located on the inner wall of the silica gel tank, an air inlet pipe passing through one side of the silica gel tank, an air exhaust pipe passing through the other side of the silica gel tank, a dehumidification pipe passing through the top portion of the silica gel tank, a condensation pipe communicated with one end of the dehumidification pipe, and a collection box located at one end of the condensation pipe. On the basis of the switching between the air drying state and the silica gel drying state, and in combination with pressure changes in the silica gel tank during heating, the present invention can achieve automatic opening of an opening and closing member and automatic closing of an air inlet partition member and an exhaust partition member, thereby enabling heating and drying of water vapor in silica gel particles, and enabling smooth discharge of the evaporated water vapor. This process eliminates the need for disassembly of the silica gel tank and replacement of the silica gel particles, allowing the silica gel particles to be recycled and reused.

Description

Transformer breathing drying device TECHNICAL FIELD

[0001] The present application relates to the field of power auxiliary equipment, in particular to a transformer breathing drying device. BACKGROUND

[0002] Due to the change of the temperature of the transformer, the air in the transformer oil tank expands or shrinks with the volume of the transformer oil, so that the air can enter or exit the transformer oil tank, and the air discharged or sucked is filtered by the breather, and the desiccant in the breather absorbs the moisture in the air, thereby keeping the insulating oil in the transformer tank clean to ensure the insulation strength of the transformer oil. The main material of the desiccant in the breather is silica gel particles. According to the operation and management regulations of the transformer substation, the silica gel needs to be replaced when the color of the silica gel changes by more than 2 / 3, so as to ensure the filtering and breathing of the transformer breather. However, when the silica gel is replaced, the silica gel tank needs to be disassembled and opened, and the silica gel needs to be replaced. This processing method is complicated to operate, and the non-renewable use of silica gel increases the daily cost of users and causes waste of materials. Therefore, a transformer breathing drying device is provided, which can dry the silica gel without opening the silica gel tank, and realize the secondary renewable use of the silica gel.

[0003] SUMMARY

[0004] In view of the problems existing in the prior art, the present application is proposed.

[0005] Therefore, the present application solves the problem of inconvenient drying of the silica gel particles after absorbing moisture in the prior art.

[0006] To solve the above technical problems, the present application provides the following technical scheme: a transformer breathing drying device, comprising a drying mechanism, a silica gel tank located on one side of the surface of the bottom plate, a heating plate located on the inner wall of the silica gel tank, an air inlet pipe penetrating one side of the silica gel tank, an air outlet pipe penetrating the other side of the silica gel tank, a dehumidification pipe penetrating the top of the silica gel tank, a condensation pipe connected to one end of the dehumidification pipe, and a collection box located at one end of the condensation pipe; and

[0007] A switching mechanism is provided, which comprises an isolation cover inside the silica gel tank, a moisture separator is provided on the inner side of the isolation cover, an opening and closing piece is provided on the outer side of the moisture separator, a torsional spring piece is connected between the opening and closing piece and the moisture separator, a downward spring is provided on the top of the opening and closing piece, a transmission piece is provided on the outside of the isolation cover, an air inlet separator and an air outlet separator are respectively connected on both sides of the transmission piece, a control rod is further provided on the top of the opening and closing piece, and the control rod penetrates to the outside of the silica gel tank.

[0008] As a preferred scheme of the transformer breathing drying device, the inner wall of the isolation cover is provided with a connecting groove at the lower part, and a vertical groove is further provided on the inner wall of the isolation cover, and one end of the vertical groove is connected with a rotating groove.

[0009] As a preferred scheme of the transformer breathing drying device, the humidity separator comprises a bottom disc, a connecting block is fixedly arranged on the outer side of the bottom disc, a guide groove is formed on the surface of the bottom disc, and a locking groove is further formed on the outer wall of the bottom disc.

[0010] The connecting block is movably arranged in the connecting groove.

[0011] As a preferred scheme of the transformer breathing drying device, the opening and closing piece comprises a rotating disc, a rotating block is fixedly arranged on the outer wall of the rotating disc, the rotating block is in sliding fit with the vertical groove and the rotating groove, a pushing groove is formed on the bottom surface of the rotating disc, a sliding column is slidably arranged in the pushing groove, a partition plate is connected to the bottom of the sliding column, and a guide block is fixedly arranged on the bottom of the partition plate.

[0012] The pushing groove is arranged in an elliptical arc shape, and two pushing grooves are arranged in an annular array about the rotating disc.

[0013] The guide block is in sliding fit with the guide groove.

[0014] As a preferred scheme of the transformer breathing drying device, the transmission piece comprises an outer tooth ring arranged on the bottom of the isolation cover, a right transmission tooth is in meshing fit with one side of the outer tooth ring, a left transmission tooth is in meshing fit with the other side of the outer tooth ring, and a locking block is further fixedly arranged on the inner wall of the outer tooth ring.

[0015] The locking block is in fit arrangement with the locking groove.

[0016] As a preferred scheme of the transformer breathing drying device, the air inlet separator comprises an air inlet separator sheet, air inlet connecting heads are integrally arranged on the two sides of the air inlet separator sheet, protruding blocks are integrally arranged on the outer walls of the air inlet connecting heads, and push springs are arranged outside the protruding blocks.

[0017] As a preferred scheme of the transformer breathing drying device, the air outlet separator comprises an air outlet separator sheet, air outlet connecting heads are integrally arranged on the two sides of the air outlet separator sheet.

[0018] As a preferred scheme of the transformer breathing drying device, the right transmission tooth and the left transmission tooth are fixedly arranged with the air inlet separator sheet and the air outlet separator sheet, respectively.

[0019] As a preferred scheme of the transformer breathing drying device, the air inlet connector is movably embedded in the air inlet pipe, and the push spring is located between the protrusion and the air inlet pipe.

[0020] As a preferred scheme of the transformer breathing drying device, the air inlet partition and the air outlet partition are respectively arranged in the air inlet pipe and the air outlet pipe.

[0021] The inner wall of the air inlet pipe is fixed with an air inlet fairing, and the inner wall of the air inlet pipe is further provided with a blocking edge.

[0022] The beneficial effects of the present application are as follows: through the cooperation of the heating plate, the moisture partition, the opening and closing member and the transmission member, according to the switching of the air drying or the silica gel drying state, the automatic opening of the opening and closing member and the automatic closing of the air inlet and outlet partitions are realized in cooperation with the pressure change in the silica gel tank during heating, so that the heating and drying treatment of the water vapor in the silica gel particles can be carried out, and the evaporated water vapor can be smoothly discharged. This process realizes the disassembly-free of the silica gel tank and the replacement-free of the silica gel particles, so that the silica gel particles can be regenerated and used twice, which ensures the safe and reliable operation of the transformer, reduces the workload of the user, and makes the drying of the silica gel particles more convenient and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0024] Fig. 1 is a structural schematic view of the transformer breathing drying device according to an embodiment of the present application;

[0025] Fig. 2 is a partial cross-sectional structural schematic view of the transformer breathing drying device according to an embodiment of the present application;

[0026] Fig. 3 is a partial exploded structural schematic view of the switching mechanism in the transformer breathing drying device according to an embodiment of the present application;

[0027] Fig. 4 is an exploded structural schematic view of the partition plate and the rotating disc in the transformer breathing drying device according to an embodiment of the present application;

[0028] Fig. 5 is a partial exploded structural schematic view of the transmission member, the air inlet partition and the air outlet partition in the transformer breathing drying device according to an embodiment of the present application;

[0029] Figure 6 is a schematic view of the cooperation structure between the air inlet partition and the air inlet pipe in the transformer breathing drying device according to an embodiment of the present application.

[0030] In the figure: 100, drying mechanism; 101, bottom plate; 102, silica gel tank; 103, heating plate; 104, air inlet pipe; 104a, air inlet fairing; 104b, edge blocking; 105, air outlet pipe; 106, moisture removal pipe; 107, condensing pipe; 108, collection box; 200, switching mechanism; 201, isolation cover; 201a, connecting groove; 201b, vertical groove; 201c, rotating groove; 202, moisture partition; 202a, bottom plate; 202b, connecting block; 202c, guide groove; 202d, locking groove; 203, opening and closing piece; 203a, rotating disc; 203b, rotating block; 203c, push groove; 203d, sliding column; 203e, partition plate; 203f, guide block; 204, torsional spring piece; 205, downward spring; 206, transmission piece; 206a, outer tooth ring; 206b, right transmission tooth; 206c, left transmission tooth; 206d, locking block; 207, air inlet partition; 207a, air inlet partition piece; 207b, air inlet connecting head; 207c, protruding block; 207d, push spring; 208, air outlet partition; 208a, air outlet partition piece; 208b, air outlet connecting head; 209, control rod; DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0032] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] Secondly, the present application is described in detail in combination with the schematic view, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure will be partially enlarged without the general proportion for the convenience of description, and the schematic view is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual manufacture.

[0034] Thirdly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or selectively excludes other embodiments.

[0035] Example 1

[0036] With reference to Figure 1, the embodiment provides a transformer breathing drying device.

[0037] The transformer breathing drying device comprises a drying mechanism 100.

[0038] Specifically, the drying mechanism 100 comprises a bottom plate 101, a silica gel tank 102 is installed on one side of the surface of the bottom plate 101, silica gel particles are stored in the silica gel tank 102, the silica gel particles can dry and filter the air entering and exiting the transformer oil tank, thereby keeping the transformer oil tank clean, ensuring the insulation strength of the transformer oil, and meanwhile, a heating plate 103 is installed on the inner wall of the silica gel tank 102, and an air inlet pipe 104 and an air outlet pipe 105 are respectively penetrated through two sides of the silica gel tank 102. The external air enters the silica gel tank 102 for treatment through the air inlet pipe 104 and is then discharged through the air outlet pipe 105, and a moisture discharge pipe 106 is also penetrated through the top of the silica gel tank 102, one end of the moisture discharge pipe 106 is communicated with a condenser pipe 107, the outlet end of the condenser pipe 107 is connected with a collection box 108, and the collection box 108 is also fixed on the bottom plate 101.

[0039] Embodiment 2

[0040] With reference to Figures 1-5, the second embodiment of the present application is based on the previous embodiment, and the difference between the two embodiments is that:

[0041] The transformer breathing drying device further comprises a switching mechanism 200.

[0042] Specifically, the switching mechanism 200 includes a shield 201 fixed to the upper part of the inner wall of the silica gel tank 102, the shield 201 is tubular at the center and its top is communicated with the dehumidification pipe 106, a moisture separator 202 is installed at the center of the shield 201, an opening and closing piece 203 is connected to the outside of the moisture separator 202, a torsion spring piece 204 is connected between the moisture separator 202 and the opening and closing piece 203, a downward spring 205 is further arranged at the top of the opening and closing piece 203, the downward spring 205 is located between the opening and closing piece 203 and the shield 201, and can support and limit the axial movement of the opening and closing piece 203 and the moisture separator 202 by elastic force, to ensure the normal working use of the moisture separator 202 and the opening and closing piece 203, and at the same time, the outside of the shield 201 is provided with a transmission piece 206, the two sides of the transmission piece 206 are respectively connected with an air inlet separator 207 and an air outlet separator 208, the air inlet separator 207 and the air outlet separator 208 are respectively arranged inside the air inlet pipe 104 and the air outlet pipe 105, and can be linked through the transmission piece 206, the two separators can respectively control the on-off of the air inlet pipe 104 and the air outlet pipe 105, to realize the switching between the air flow state and the silica gel particle drying state, and a control rod 209 is further arranged at the top of the opening and closing piece 203, the control rod 209 penetrates to the outside of the silica gel tank 102.

[0043] Further, the moisture separator 202 includes a bottom disc 202a arranged at the center hole of the shield 201, a through hole is left at the center of the bottom disc 202a, and a connecting block 202b is symmetrically and fixedly arranged outside the bottom disc 202a, a connecting groove 201a is left at the lower part of the inner wall of the shield 201, the connecting block 202b is movably embedded in the connecting groove 201a, so that the relative connection between the bottom disc 202a and the shield 201 can be ensured through the embedding cooperation between the connecting block 202b and the connecting groove 201a, and the rotation of the bottom disc 202a can be limited by the connecting groove 201a, so that the bottom disc 202a can only move axially, and two guide grooves 202c are symmetrically arranged on the surface of the bottom disc 202a.

[0044] The opening and closing member 203 comprises a rotating disc 203a rotatably connected with the bottom disc 202a, the rotating disc 203a is annularly arranged, and a rotating block 203b is fixed to the circumferential outer wall of the rotating disc 203a, and the inner wall of the isolation cover 201 is further provided with a vertical groove 201b, one end of the vertical groove 201b is communicated with a rotating groove 201c, so that the rotating block 203b can be slidably connected with the vertical groove 201b and the rotating groove 201c to meet the rotating requirement of the rotating disc 203a, and the bottom surface of the rotating disc 203a is annularly provided with two push grooves 203c, the two push grooves 203c are both slidably provided with a sliding column 203d, the bottom of the sliding column 203d is integrally connected with a semicircular partition plate 203e, and the bottom of the partition plate 203e is fixed with a guide block 203f, the guide block 203f is slidably connected with a guide groove 202c, and the guide groove 202c can limit the movement of the partition plate 203e, so that the partition plate 203e can only move horizontally when the rotating disc 203a rotates.

[0045] Further, the push groove 203c is arranged in an elliptical arc shape, so that through the sliding connection between the push groove 203c and the sliding column 203d, when the rotating disc 203a rotates, the two partition plates 203e can move under the pushing of the push groove 203c to the sliding column 203d, and because the partition plate 203e is limited by the sliding of the guide block 203f at the bottom and the guide groove 202c, the two partition plates 203e can only move in the horizontal direction along the guide groove 202c when the rotating disc 203a rotates, and because the two partition plates 203e are arranged in a semicircular shape, when the inner sides of the two partition plates 203e contact, a complete circular surface can be formed by splicing, which can close the center circular hole of the bottom disc 202a to realize the closing of the moisture separation piece 202, at this time, the silica gel tank 102 can normally dry the air entering and leaving the transformer oil storage tank, and when the two partition plates 203e are separated, the moisture separation piece 202 is opened, and the drying operation of the silica gel particles in the silica gel tank 102 can be performed.

[0046] In the air drying process, the air in and out of the transformer oil tank enters the silica gel tank 102 through the air inlet pipe 104 or the air outlet pipe 105, at this time the moisture separator 202 is in the closed state, the air is dried by the silica gel particles in the silica gel tank 102, and then enters or exits through the air outlet pipe 105 or the air inlet pipe 104, thereby completing the drying of the air in and out, when the silica gel particles are affected by long-term moisture absorption and affect their drying effect on the air, the silica gel particles can be heated and dried to evaporate the water vapor inside the silica gel particles, in the drying process of the silica gel particles, the air inlet pipe 104 and the air outlet pipe 105 can be closed through the air inlet separator 207 and the air outlet separator 208, at this time the silica gel tank 102 is in a sealed state, then the heating plate 103 can be opened, the heating plate 103 emits heat to heat and dry the silica gel particles, at this time as the temperature inside the silica gel tank 102 rises, the internal pressure increases, so that the bottom plate 202a can move upwards along the connecting groove 201a under the action of the pressure to overcome the elastic force of the downward spring 205, and the rotating block 203b on the outside of the rotating disc 203a moves to the intersection of the vertical groove 201b and the rotating groove 201c through the vertical groove 201b, at this time the restriction of the torsional spring piece 204 disappears, so that it can drive the rotating disc 203a to rotate according to its own elastic force, so that the two separator plates 203e move towards the outside of the two sides along the guide groove 202c under the cooperation of the push groove 203c and the slide column 203d, thereby opening the center circular hole of the bottom plate 202a, at this time the water vapor evaporated from the silica gel particles can enter the condensing pipe 107 through the isolation cover 201, and then enter the collection box 108 after being condensed in the condensing pipe 107 for collection, after the silica gel isolation drying is completed, the moisture separator 202 and the opening and closing piece 203 are reset through the control rod 209, the moisture separator 202 is closed again, the air inlet pipe 104 and the air outlet pipe 105 are opened, and the breathing drying device is used normally. Through the cooperation of the heating plate 103, the moisture separator 202 and the opening and closing piece 203, the opening and closing piece 203 can be automatically opened according to the pressure change during heating, the heating and drying treatment of the water vapor in the silica gel particles is realized, and the evaporated water vapor is smoothly discharged, at the same time, this process realizes the disassembly-free of the silica gel tank 102 and the replacement-free of the silica gel particles, which ensures the safe and reliable operation of the transformer, reduces the workload of the user, and makes the drying of the silica gel particles more convenient and efficient.

[0047] Example 3

[0048] Referring to FIGS. 1-6, the third embodiment of the present application is based on the previous embodiment, and differs from the previous embodiment in that:

[0049] The transmission member 206 comprises an outer tooth ring 206a rotatably arranged at the bottom of the isolation cover 201, one side of the outer tooth ring 206a is engaged with a right transmission tooth 206b, and the other side of the outer tooth ring 206a is engaged with a left transmission tooth 206c, meanwhile, the outer tooth ring 206a, the right transmission tooth 206b and the left transmission tooth 206c are all arranged in the form of bevel gears, and the inner wall of the outer tooth ring 206a is further fixed with a locking block 206d.

[0050] The air inlet separator 207 comprises an air inlet separator plate 207a rotatably arranged inside the air inlet pipe 104, both sides of the air inlet separator plate 207a are integrally provided with cylindrical air inlet connecting heads 207b, both sides of the air inlet connecting heads 207b are movably embedded inside the air inlet pipe 104, meanwhile, the outer wall of the air inlet connecting head 207b is integrally provided with a protrusion 207c, the connecting position between the air inlet pipe 104 and the air inlet connecting head 207b is provided with a groove matched with the protrusion 207c, meanwhile, the outer part of the protrusion 207c is further connected with a push spring 207d, the push spring 207d is located inside the groove, and the air inlet separator plate 207a can be assisted to turn over through the elastic force of the push spring 207d, when the external air stops entering, at this time, the air flow thrust received by the air inlet separator plate 207a disappears, and then the air inlet separator plate 207a can be turned to a horizontal state under the elastic force of the push spring 207d, so as to realize the automatic closing of the air inlet pipe 104, and the exhaust pipe 105 can be closed at the same time under the transmission of the transmission member 206.

[0051] The exhaust separator 208 comprises an exhaust separator plate 208a rotatably arranged inside the exhaust pipe 105, and both sides of the exhaust separator plate 208a are also integrally provided with exhaust connecting heads 208b, and the exhaust separator plate 208a can be rotated through the exhaust connecting heads 208b movably arranged inside the exhaust pipe 105.

[0052] Further, the right transmission tooth 206b and the left transmission tooth 206c are respectively fixed with the air inlet separator plate 207a and the exhaust separator plate 208a, so that when the air inlet separator plate 207a rotates, the right transmission tooth 206b can rotate synchronously, and under the combined engagement of the outer tooth ring 206a and the left transmission tooth 206c, the left transmission tooth 206c can rotate synchronously with the right transmission tooth 206b under the transmission of the outer tooth ring 206a, so that the movements of the air inlet separator plate 207a and the exhaust separator plate 208a can be kept consistent, and the synchronous opening and closing between the air inlet pipe 104 and the exhaust pipe 105 can be realized.

[0053] The inner wall of the air inlet pipe 104 is fixed with an air inlet fairing 104a, and the opposite side of the air inlet fairing 104a is also fixed with a blocking edge 104b. The air inlet fairing 104a can guide the air entering the air inlet pipe 104, so that the air entering the air inlet pipe 104 only acts on one side of the air inlet partition 207a, thereby driving the air inlet partition 207a to flip through air thrust, and under the cooperation of the transmission teeth and the external tooth ring 206a, the exhaust partition 208a is linked with the air inlet partition 207a, realizing the automatic opening of the air inlet pipe 104 and the exhaust pipe 105 when the air is introduced. The blocking edge 104b can limit the flipped air inlet partition 207a, so that the air inlet partition 207a can be accurately rotated to a horizontal state to close the air inlet pipe 104, and the exhaust partition 208a can also be synchronously rotated to a horizontal state through the bevel gear transmission.

[0054] The outer wall of the chassis 202a is also provided with a locking groove 202d, which is arranged in a straight angle folding groove type, and the locking block 206d is matched with the locking groove 202d. The locking groove 202d is formed by the communication between the horizontal groove and the vertical groove. When the air inlet pipe 104 and the exhaust pipe 105 are in the open state, the locking block 206d on the inner side of the external tooth ring 206a is located on the horizontal groove of the locking groove 202d, so that the locking block 206d and the locking groove 202d are matched to limit the upward movement of the moisture partition 202, avoiding the opening of the moisture partition 202 under the action of air flow when the air is dry, which affects the normal flow path of the air. When the air inlet pipe 104 and the exhaust pipe 105 are closed, the external tooth ring 206a rotates synchronously during the closing process, and the locking block 206d rotates to the vertical groove of the locking groove 202d, thereby releasing the locking of the moisture partition 202 by the locking block 206d, so that the moisture partition 202 can be freely opened under the action of air pressure.

[0055] It is important to note that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review the present disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Thus, the foregoing description is by way of example only, and is not intended to be limiting. The application is limited only as defined in the following claims and equivalents thereto. The sequence of any process or method steps, or the order in which they are carried out, can be altered or re-ordered without departing from the scope of the application. Any "articles of manufacture" or "manufacturing" as described herein are intended to encompass structures constructed of a multitude of different physical elements or components. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and also cover structures yet to be invented which perform the recited function but operate in a different manner. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the application as expressed in the appended claims.

[0056] Also, to provide a concise description of the exemplary embodiments, not all features of an actual implementation can be described (that is, not all implementations can include all of the features described or optional implementations can include only a subset of the features described).

[0057] It should be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts might be complex and time-consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0058] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application but not to limit the present application, and although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A transformer breathing drying apparatus, characterized by: The utility model relates to a drying device, which comprises a bottom plate (101), a silica gel tank (102) located on one side of the surface of the bottom plate (101), a heating plate (103) located on the inner wall of the silica gel tank (102), an air inlet pipe (104) penetrating through one side of the silica gel tank (102), an air outlet pipe (105) penetrating through the other side of the silica gel tank (102), a moisture removal pipe (106) penetrating through the top of the silica gel tank (102), a condensation pipe (107) connected to one end of the moisture removal pipe (106), and a collection box (108) located at one end of the condensation pipe (107). The utility model relates to a drying device, which comprises a bottom plate (101), a silica gel tank (102) located on one side of the surface of the bottom plate (101), a heating plate (103) located on the inner wall of the silica gel tank (102), an air inlet pipe (104) penetrating through one side of the silica gel tank (102), an air outlet pipe (105) penetrating through the other side of the silica gel tank (102), a moisture removal pipe (106) penetrating through the top of the silica gel tank (102), a condensation pipe (107) connected to one end of the moisture removal pipe (106), and a collection box (108) located at one end of the condensation pipe (107). The inner wall of the isolation cover (201) is provided with a connecting groove (201a) at the lower part, and the inner wall of the isolation cover (201) is also provided with a vertical groove (201b), one end of the vertical groove (201b) is communicated with a rotating groove (201c).

2. The transformer breather drying apparatus of claim 1, wherein: The humidity separator (202) comprises a bottom disc (202a), the outer side of the bottom disc (202a) is fixedly provided with a connecting block (202b), the surface of the bottom disc (202a) is provided with a guide groove (202c), and the outer wall of the bottom disc (202a) is also provided with a locking groove (202d).

3. Breathing dry apparatus for transformers according to claim 1 or 2, characterized in that: The connecting block (202b) is movably embedded in the connecting groove (201a). The opening and closing piece (203) comprises a rotating disc (203a), the outer wall of the rotating disc (203a) is fixedly provided with a rotating block (203b), the rotating block (203b) is in sliding fit with the vertical groove (201b) and the rotating groove (201c), the bottom surface of the rotating disc (203a) is provided with a pushing groove (203c), the inside of the pushing groove (203c) is slidably provided with a sliding column (203d), the bottom of the sliding column (203d) is connected with a partition plate (203e), and the bottom of the partition plate (203e) is fixedly provided with a guide block (203f).

4. The transformer breather drying apparatus of claim 3, wherein: The pushing groove (203c) is arranged in an elliptical arc shape, and two pushing grooves (203c) are arranged in an annular array about the rotating disc (203a). The guide block (203f) is in sliding fit with the guide groove (202c). ​ 5. The transformer breather drying apparatus of claim 4, wherein: The transmission member (206) comprises an outer tooth ring (206a) arranged at the bottom of the isolation cover (201), one side of the outer tooth ring (206a) is engaged with a right transmission tooth (206b), the other side of the outer tooth ring (206a) is engaged with a left transmission tooth (206c), and the inner wall of the outer tooth ring (206a) is further fixed with a locking block (206d); The locking block (206d) and the locking groove (202d) are cooperatively arranged.

6. The transformer breather drying apparatus of claim 5, wherein: The air inlet partition (207) comprises an air inlet partition plate (207a), both sides of the air inlet partition plate (207a) are integrally provided with an air inlet connector (207b), the outer wall of the air inlet connector (207b) is integrally provided with a protruding block (207c), and the outer part of the protruding block (207c) is provided with a push spring (207d).

7. The transformer breather drying apparatus of claim 6, wherein: The exhaust partition (208) comprises an exhaust partition plate (208a), both sides of the exhaust partition plate (208a) are integrally provided with an exhaust connector (208b).

8. The transformer breather drying apparatus of claim 7, wherein: The right transmission tooth (206b) and the left transmission tooth (206c) are respectively fixed with the air inlet partition plate (207a) and the exhaust partition plate (208a).

9. A transformer breather drying apparatus as claimed in any one of claim 8, characterised in that: The air inlet connector (207b) is movably embedded in the air inlet pipe (104), and the push spring (207d) is located between the protruding block (207c) and the air inlet pipe (104).

10. The transformer breather drying apparatus of claim 9, wherein: The air inlet partition (207) and the exhaust partition (208) are respectively arranged in the air inlet pipe (104) and the exhaust pipe (105). The inner wall of the air inlet pipe (104) is fixed with an air inlet flow guide cover (104a), and the inner wall of the air inlet pipe (104) is further provided with a blocking edge (104b).

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