Self-cleaning intelligent maintenance-free moisture absorber

Abstract

The application discloses a self-cleaning intelligent maintenance-free moisture absorber, which comprises an upper end part, a lower end part and a condensing shell, a dehumidifying and drying chamber is arranged in the condensing shell, the upper end part is provided with a secondary chamber, the secondary chamber comprises a first chamber, a second chamber and a bidirectional non-return mechanism, the secondary chamber is provided with a breathing mechanism communicating with the first chamber and an exhaust mechanism communicating with the second chamber, and a heating mechanism is arranged in the dehumidifying and drying chamber; the lower end part is provided with an air inlet and outlet pipe, the air inlet and outlet pipe is provided with a wind supply mechanism and a filter, the filter is arranged in a conical shape, the air inlet and outlet pipe is provided with an ash accumulation groove, the wind supply mechanism is provided with a cleaning assembly for cleaning opposite sides of the filter, the upper end surface of the lower end part is provided with a drainage channel communicating with the ash accumulation groove, and the pipe wall of the air inlet and outlet pipe is provided with a water outlet channel communicating with the ash accumulation groove. The application realizes dehydration and drying of the dehumidifying and drying chamber and impurity removal of the ash accumulation groove, and effectively reduces the frequency of shutdown maintenance.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of transformers, in particular to a self-cleaning intelligent maintenance-free moisture absorber. BACKGROUND

[0002] During operation of power equipment, condensation is easily generated inside due to environmental humidity, which leads to a decrease in insulation performance and even causes equipment failure. At present, moisture-proof of electronic equipment is mainly realized through a moisture absorber. The traditional moisture absorber needs to be replaced with a moisture absorbent or manually maintained at regular intervals, and has the problems of high maintenance cost and low efficiency. With the development of smart grids, the demand for maintenance-free and intelligent power equipment is increasing, and a moisture absorber technology capable of automatic cleaning and without manual intervention is urgently needed.

[0003] In the prior art, common moisture absorber solutions include silica gel moisture absorbers, molecular sieve moisture absorbers and heating type moisture absorbers. The silica gel moisture absorber absorbs moisture through silica gel, and the silica gel needs to be dehydrated by heating after saturation, and the silica gel can absorb moisture again after dehydration.

[0004] The common moisture absorber is provided with a metal filter screen at the lower end for filtering impurities in the gas during the inhalation and exhalation of the transformer, but the impurities will accumulate and adhere to the metal filter screen after long-term use, thereby affecting the flow of the gas, and therefore the metal filter screen of the moisture absorber needs to be replaced or cleaned at regular intervals, which needs to stop air supply and has certain intermittent disadvantages. SUMMARY

[0005] The application aims to provide a self-cleaning intelligent maintenance-free moisture absorber, and solves the problem that the metal filter screen of the moisture absorber needs to be replaced or cleaned, which needs to stop air supply and has certain intermittent disadvantages.

[0006] The self-cleaning intelligent maintenance-free moisture absorber provided by the application adopts the following technical scheme:

[0007] The utility model provides a kind of self-cleaning intelligent maintenance-free moisture absorber, including upper end, lower end and be provided between the condensing shell of the upper end and the lower end, the condensing shell is provided with dehumidification drying chamber inside, the upper end is provided with with the secondary chamber that communicates with the dehumidification drying chamber, the secondary chamber includes first chamber, second chamber and control the two-way non-return mechanism that the first chamber and the second chamber communicate or cut off, the secondary chamber is provided with breathing mechanism that communicates the first chamber, exhaust mechanism that communicates the second chamber, the dehumidification drying chamber is provided with heating mechanism inside;The lower end is provided with inlet and outlet air pipe that communicates the dehumidification drying chamber, the inlet and outlet air pipe is provided with air supply mechanism and filter piece covering gas flow range inside, the filter piece is arranged in conical shape and radius gradually decreases towards the direction of the dehumidification drying chamber, the pipe wall of the inlet and outlet air pipe is provided with with the edge corresponding of filter piece ash groove, the air supply mechanism is provided with cleaning assembly for cleaning the opposite sides of the filter piece, the upper end surface of the lower end is provided with with the drainage channel that communicates the ash groove, the pipe wall of the inlet and outlet air pipe is provided with with the water outlet channel that communicates the ash groove.

[0008] By adopting the above technical scheme, when the transformer inhales, the breathing mechanism is opened, the exhaust mechanism and the heating mechanism are closed, the two-way non-return mechanism communicates the first chamber and the second chamber, the air supply mechanism introduces air from the inlet and outlet air pipe into the dehumidification drying chamber, and the dry air after dehumidification enters the second chamber of the secondary chamber, and then enters the transformer through the two-way non-return mechanism, the first chamber and the breathing mechanism.

[0009] When the transformer exhales, the breathing mechanism is opened, the exhaust mechanism and the heating mechanism are closed, the two-way non-return mechanism communicates the first chamber and the second chamber, the gas enters the first chamber of the secondary chamber through the breathing mechanism, and then enters the dehumidification drying chamber through the two-way non-return mechanism and the second chamber, and finally enters the dehumidification drying chamber, and the air supply mechanism discharges the gas after dehumidification and drying from the dehumidification drying chamber through the inlet and outlet air pipe, realizing the effect of dehumidification and drying of the maintenance-free moisture absorber during the inhaling and exhaling of the transformer.

[0010] The filter piece is arranged in conical shape, and the surface of the filter piece can be cleaned under the action of the cleaning assembly. The dust on the upper side of the filter piece falls into the ash groove along the inclined surface, and the dust is also blown into the ash groove under the action of gas flow during the breathing process. The dust on the lower side of the filter piece is discharged from the inlet and outlet air pipe during the exhaling of the transformer. In this way, the filter piece is self-cleaning, and the frequency of stopping work for replacing or cleaning the filter piece is reduced.

[0011] Meanwhile, when the dehumidifying and drying chamber is dehydrated and dried, the bidirectional check mechanism cuts off the communication between the first chamber and the second chamber, the breathing mechanism is closed, the exhaust mechanism and the heating mechanism are opened, the dehumidifying and drying chamber is heated and then dehydrated to generate water vapor, because the temperature outside the condensing shell is lower than the inside, the water vapor meets the inner wall of the condensing shell and condenses into water and flows downward along the inner wall of the condensing shell, the water flows into the drainage channel at the lower end, the water washes the dust in the dust collecting groove, and finally is discharged from the water outlet channel. Moreover, part of the water vapor enters the second chamber and is discharged from the exhaust mechanism, effectively reducing the damage of the transformer caused by the water vapor entering the transformer, realizing the dehydration and drying of the dehumidifying and drying chamber and the impurity removal of the dust collecting groove, and effectively reducing the frequency of shutdown maintenance.

[0012] Optionally, the filter member comprises a fixed ring fixedly arranged on the circumferential wall of the air inlet and outlet pipe, a connecting ring arranged axially inside the fixed ring, and a tapered mesh surface arranged between the fixed ring and the connecting ring.

[0013] By adopting the above technical scheme, the fixed ring is fixedly connected to the circumferential wall of the air inlet and outlet pipe, and the tapered mesh surface is connected between the fixed ring and the connecting ring, so as to ensure the structural strength of the filter member.

[0014] Optionally, the cleaning assembly comprises a rotating shaft axially rotatably connected to the connecting ring, two shaft sleeves axially fixedly arranged on the rotating shaft, and a cleaning rod circumferentially and obliquely arranged on the shaft sleeves, the cleaning rod being in contact with the side surface of the corresponding tapered mesh surface, the two shaft sleeves being symmetrically arranged on both sides of the connecting ring, and the air supply mechanism being provided with a first driving member for driving the rotating shaft to rotate.

[0015] By adopting the above technical scheme, the first driving member drives the rotating shaft to rotate, the rotating shaft drives the two shaft sleeves to rotate, and the shaft sleeves drive the cleaning rod to move circumferentially on the corresponding tapered mesh surface, so as to realize the cleaning effect of the filter member.

[0016] Optionally, the upper end surface of the lower end is provided with a deposition groove, one end of the drainage channel penetrates through the groove wall of the deposition groove, a water collecting block with a water collecting groove is slidably arranged in the deposition groove, a first reset member for driving the water collecting block to slide back is arranged in the deposition groove, and a first water outlet hole corresponding to one end of the drainage channel is formed through the groove wall of the water collecting groove.

[0017] By adopting the above technical scheme, when the dehumidification and drying chamber is dehydrated and dried, water flows into the water collecting groove, and only a proper amount of water can drive the water collecting block to slide into the sediment groove under the action of gravity, the first reset member is elastically deformed under the action of force and has a tendency to be elastically reset, and after the action of force is reduced, the first reset member drives the water collecting block to reset. When the first water outlet hole is aligned with one end of the drainage channel, water flows into the drainage channel, and the accumulated water amount can increase the flow and speed of water flowing into the drainage channel, thereby ensuring the flushing effect on the dust in the dust collecting groove. At the same time, when the dehumidification and drying chamber is not dehydrated and dried, the water collecting block resets to block one end of the drainage channel, thereby reducing the flow of gas into the drainage channel, and thus reducing the situation that the dust in the dust collecting groove is blown out of the dust collecting groove by the flow of gas.

[0018] Optionally, a lower end groove wall of the dust collecting groove is provided with a movable groove, a dust collecting block is slidably arranged in the movable groove, the dust collecting block is provided with a dust collecting groove, one end of the drainage channel penetrates through an upper end groove wall of the dust collecting groove and corresponds to a groove opening of the dust collecting groove, and one end of the water outlet channel penetrates through a groove wall of the movable groove.

[0019] By adopting the above technical scheme, when the dehumidification and drying chamber is dehydrated and dried, water flowing into the dust collecting groove drives the dust collecting block to move towards the inside of the movable groove, the second reset member is elastically deformed under the action of force and has a tendency to be elastically reset, and after the action of force is reduced, the second reset member drives the dust collecting block to reset. After the second water outlet hole is aligned with one end of the water outlet channel, water and dust are discharged, and the situation that water splashes out of the dust collecting groove and flows out of the dust collecting groove is reduced.

[0020] Optionally, a groove wall of the dust collecting groove is provided with a sliding groove, a stop block is slidably arranged in the sliding groove, the stop block and the dust collecting block are linked through a connecting rope, the stop block can open and close the groove opening of the dust collecting groove, and the sliding groove is provided with a third reset member for driving the stop block to reset and slide.

[0021] By adopting the above technical scheme, when the dust collecting block moves towards the inside of the movable groove, the dust collecting block drives the stop block to close the groove opening of the dust collecting groove through the connecting rope, at this time, the third reset member is elastically deformed under the action of force and has a tendency to be elastically reset, and after the action of force is reduced, the third reset member drives the stop block to reset and open the groove opening of the dust collecting groove.

[0022] Optionally, the bidirectional non-return mechanism comprises a partition plate arranged between the first chamber and the second chamber, an intermediate plate arranged in the partition plate and rotating axially, and a second driving member arranged on an outer wall of the second chamber and used for driving the intermediate plate to rotate, a first air guide hole is arranged at an eccentric position of the partition plate, and the intermediate plate is provided with a second air guide hole capable of being aligned with the first air guide hole.

[0023] By adopting the technical scheme, when the transformer exhales and inhales, the second driving member drives the intermediate plate to rotate, so that the first air guide hole is aligned with the second air guide hole, the first chamber and the second chamber are communicated, and gas flow is realized; when the dehumidification drying chamber is dehydrated and dried, the second driving member drives the intermediate plate to rotate, so that the first air guide hole is misaligned with the second air guide hole, the other part of the intermediate plate blocks the first air guide hole, and the first chamber and the second chamber are cut off, thereby reducing the flow of water vapor to the transformer.

[0024] Optionally, the partition plate is provided with a transmitting sensor at the first air guide hole, the intermediate plate is provided with a receiving sensor at the second air guide hole, one side of the upper end portion is provided with a control mechanism, and the control mechanism is in communication with the air supply mechanism, the transmitting sensor, the receiving sensor, the exhaust mechanism and the heating mechanism.

[0025] By adopting the technical scheme, when the first air guide hole is aligned with the second air guide hole, the transmitting sensor is aligned with the receiving sensor for sensing, a signal is transmitted to the control mechanism, and the control mechanism controls the air supply mechanism to start; when the first air guide hole is misaligned with the second air guide hole, the transmitting sensor is misaligned with the receiving sensor, and the dehumidification drying chamber needs to be dehydrated and dried, the control mechanism controls the exhaust mechanism and the heating mechanism to start.

[0026] Optionally, the exhaust mechanism comprises an exhaust pipe and an exhaust control valve arranged on the upper end portion, one end of the exhaust pipe is in communication with the second chamber, and the exhaust control valve controls the opening and closing of the exhaust pipe; the breathing mechanism comprises a breathing pipe and a breathing control valve arranged on the upper end portion, the breathing pipe is in communication with the first chamber, the breathing control valve controls the opening and closing of the breathing pipe, and the exhaust control valve and the breathing control valve are connected with the control mechanism.

[0027] By adopting the technical scheme, the control mechanism controls the starting or closing of the exhaust control valve and the breathing control valve.

[0028] Optionally, the heating mechanism comprises a heater and a heating switch arranged at the bottom of the dehumidification drying chamber, and the heating switch is connected with the heater and the control mechanism.

[0029] By adopting the technical scheme, the control mechanism controls the heating switch, so that the starting and stopping of the heater are realized, the temperature in the condensing shell is increased, and the dehumidification drying chamber is dehydrated and dried.

[0030] In summary, the present application has at least one of the following beneficial technical effects:

[0031] 1、The filter is conical, and can be cleaned under the action of the cleaning assembly. The dust on the upper side of the filter will gradually fall into the dust collecting groove along the inclined surface, and the dust on the lower side of the filter will be discharged from the air inlet and outlet pipe during the breathing process of the transformer. Thus, the filter is self-cleaning, and the frequency of stopping work for replacing or cleaning the filter is reduced. When the dehumidifying and drying chamber is dehydrated and dried, the two-way check mechanism separates the first chamber and the second chamber, the breathing mechanism is closed, the exhaust mechanism and the heating mechanism are opened, the dehumidifying and drying chamber is heated and then dehydrated to generate water vapor, the water vapor condenses into water when meeting the inner wall of the condensing shell and flows downward along the inner wall of the condensing shell, the water flows into the drainage channel at the lower end, the water washes the dust in the dust collecting groove, and finally is discharged from the water outlet channel. In addition, part of the water vapor enters the second chamber and is discharged from the exhaust mechanism, effectively reducing the damage of the water vapor entering the transformer, realizing the dehydration and drying of the dehumidifying and drying chamber and the impurity removal of the dust collecting groove, and effectively reducing the frequency of shutdown maintenance.

[0032] 2、When the dehumidifying and drying chamber is dehydrated and dried, the water flows into the water collecting groove, the gravity drives the water collecting block to slide into the deposition groove, the first reset member is elastically deformed under the force and tends to be elastically reset, and after the force decreases, the first reset member drives the water collecting block to reset. When the first water outlet hole is aligned with one end of the drainage channel, the water flows into the drainage channel, the accumulated water increases the flow and speed of the water flowing into the drainage channel, and the washing effect on the dust in the dust collecting groove is ensured. When the dehumidifying and drying chamber is dehydrated and dried, the water flowing into the dust collecting groove drives the dust collecting block to move towards the inner side of the movable groove, the second reset member is elastically deformed under the force and tends to be elastically reset, and after the force decreases, the second reset member drives the dust collecting block to reset. After the second water outlet hole is aligned with one end of the water outlet channel, the water and dust are discharged, and the water splashing out of the dust collecting groove and flowing out of the dust collecting groove is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0034] Figure 2 is a schematic diagram of the cross section of the embodiment of the present application;

[0035] Figure 3 is an enlarged schematic diagram of A of the embodiment of the present application;

[0036] Figure 4 is an enlarged schematic diagram of B of the embodiment of the present application;

[0037] Figure 5 is a schematic diagram of the structure of the lower end of the embodiment of the present application;

[0038] Figure 6is an internal schematic view of the lower end part and the air inlet and outlet pipe of the application embodiment;

[0039] Figure 7 is an exploded schematic view of the filter part and the cleaning assembly of the application embodiment.

[0040] BRIEF DESCRIPTION OF THE DRAWINGS: 1, upper end part; 11, first chamber; 12, second chamber; 2, condensation shell; 21, dehumidifying and drying chamber; 3, lower end part; 31, air inlet and outlet pipe; 311, dust accumulation groove; 3111, movable groove; 3112, sliding groove; 3113, stop block; 3114, connecting rope; 3115, third reset part; 312, water outlet passage; 32, water drainage passage; 33, air supply mechanism; 34, sediment groove; 35, water collecting block; 351, water collecting groove; 352, first water outlet hole; 36, first reset part; 37, dust collecting block; 371, dust collecting groove; 372, second water outlet hole; 38, second reset part; 4, bidirectional non-return mechanism; 41, partition plate; 42, intermediate plate; 43, second driving part; 44, first air guide hole; 45, second air guide hole; 5, breathing mechanism; 51, breathing pipe; 52, breathing control valve; 6, exhaust mechanism; 61, exhaust pipe; 62, exhaust control valve; 7, heating mechanism; 8, filter part; 81, fixing ring; 82, connecting ring; 83, conical mesh surface; 9, cleaning assembly; 91, rotating shaft; 92, shaft sleeve; 93, cleaning rod. DETAILED DESCRIPTION

[0041] The application will be further described below with reference to the accompanying drawings. Figure 1 - the drawings Figure 7 The application will be further described below with reference to the accompanying drawings.

[0042] The application embodiment discloses a self-cleaning intelligent maintenance-free moisture absorber.

[0043] Reference Figure 1 , Figure 2 and Figure 3The utility model provides a kind of self-cleaning intelligent maintenance-free moisture absorber, including upper end 1, condensing shell 2 and lower end 3 from top to bottom, three are fixedly connected by flange between each other.The inside of condensing shell 2 is provided with dehumidification drying chamber 21, and upper end 1 is provided with two-stage chamber communicated with dehumidification drying chamber 21, and two-stage chamber includes first chamber 11, second chamber 12 and the two-way check mechanism 4 of control first chamber 11 and second chamber 12 communication or cut off, and first chamber 11 and second chamber 12 are arranged in top and bottom.Two-stage chamber is provided with breathing mechanism 5 communicated with first chamber 11, exhaust mechanism 6 communicated with second chamber 12, and dehumidification drying chamber 21 is silica gel drying ring axially arranged in the inside of condensing shell 2, gas enters from the outside of silica gel ring to inside, and then from the upper end opening of condensing shell 2 into second chamber 12.The cooperation between the components of the maintenance-free moisture absorber in the application also relates to line connection and sealing structure, which is not embodied in the text and drawings of the application due to being conventional means or not being the main technical solution of the application.

[0044] Referring to Figure 1 、 Figure 2 and Figure 3 , one side of upper end 1 is provided with control mechanism, and the control mechanism is a control box, a processor and other circuit control devices arranged in the control box.Breathing mechanism 5 includes breathing pipe 51 arranged in upper end 1 and breathing control valve 52, and breathing pipe 51 is communicated with first chamber 11, and breathing control valve 52 controls the on-off of breathing pipe 51.Exhaust mechanism 6 includes exhaust pipe 61 arranged in upper end 1 and exhaust control valve 62, one end of exhaust pipe 61 is communicated with second chamber 12, and exhaust control valve 62 controls the on-off of exhaust pipe 61.Heating mechanism 7 is arranged in dehumidification drying chamber 21, and heating mechanism 7 includes a heater and a heating switch arranged at the bottom of dehumidification drying chamber 21.

[0045] Referring to Figure 1 、 Figure 2 and Figure 3 , lower end 3 is provided with air inlet and outlet pipe 31 communicated with dehumidification drying chamber 21, air inlet and outlet pipe 31 is provided with air supply mechanism 33 and filter element 8 covering the gas flow range, filter element 8 is arranged in a conical shape and the radius gradually decreases towards dehumidification drying chamber 21, and the pipe wall of air inlet and outlet pipe 31 is provided with ash groove 311 corresponding to the edge of filter element 8.Air supply mechanism 33 is provided with cleaning assembly 9 for cleaning the opposite sides of filter element 8, and the upper end surface of lower end 3 is provided with drainage channel 32 communicated with the ash groove 311, and the pipe wall of air inlet and outlet pipe 31 is provided with water outlet channel 312 communicated with ash groove 311.

[0046] Referring to Figure 3 、 Figure 4 and Figure 5The air supply mechanism 33 comprises a shell, a fan and a motor arranged in the shell, and a heat dissipation device for dissipating heat of the motor. The control mechanism is connected with corresponding power supply and electrical signal control components of the breathing air mechanism 5, the air supply mechanism 33, the exhaust mechanism 6 and the heating mechanism 7, such as the exhaust control valve 62, the breathing control valve 52, the motor and the heat dissipation device.

[0047] With reference to Figure 6 , Figure 7 The filter 8 comprises a fixed ring 81 fixedly arranged on the circumferential wall of the air inlet and outlet pipe 31, a connecting ring 82 arranged axially inside the fixed ring 81, and a conical mesh surface 83 fixedly connected to the circumferential inner wall of the fixed ring 81 and the circumferential inner wall of the connecting ring 82. The conical mesh surface 83 is made of corrosion-resistant metal.

[0048] With reference to Figure 6 , Figure 7 The cleaning assembly 9 comprises a rotating shaft 91 axially rotatably connected to the connecting ring 82 through a bearing, two shaft sleeves 92 axially fixedly connected to the rotating shaft 91 through a bearing, and cleaning rods 93 circumferentially and obliquely fixedly connected to the shaft sleeves 92. The cleaning rods 93 are in contact with the side surface of the corresponding conical mesh surface 83, and the cleaning rods 93 are provided with bristles at the positions in contact with the conical mesh surface 83. The two shaft sleeves 92 are symmetrically arranged on both sides of the connecting ring 82. The air supply mechanism 33 is provided with a first driving member for driving the rotating shaft 91 to rotate. The first driving member is a motor integratedly arranged in the shell of the air supply mechanism 33, and the heat dissipation device can also dissipate heat of the motor as needed.

[0049] With reference to Figure 6 , Figure 7 The upper end surface of the lower end portion 3 is provided with a deposition groove 34. One end of the drainage channel 32 penetrates the groove wall of the deposition groove 34. A water collecting block 35 with a water collecting groove 351 is slidably connected in the deposition groove 34. A first reset member 36 for driving the water collecting block 35 to reset and slide is arranged in the deposition groove 34. The first reset member 36 is a spring, one end of which is fixedly connected to the lower end of the water collecting block 35, and the other end is fixedly connected to the groove bottom of the deposition groove 34. The groove wall of the water collecting groove 351 is provided with a first water outlet hole 352 corresponding to one end of the drainage channel 32.

[0050] With reference to Figure 6 , Figure 7The lower wall of the ash trough 311 is provided with a movable groove 3111 and an ash collecting block 37 that is slidably connected to the movable groove 3111. The upper end of the ash collecting block 37 is provided with an ash collecting groove 371. One end of the drainage channel 32 penetrates the upper wall of the ash trough 311 and corresponds to the notch of the ash collecting trough 371. One end of the water outlet channel 312 penetrates the wall of the movable groove 3111. A second return member 38 is provided in the movable groove 3111 to drive the ash collecting block 37 to return to its original position and slide. The second return member 38 is a spring with one end fixedly connected to the lower end of the ash collecting block 37 and the other end fixedly connected to the bottom of the movable groove 3111. A second water outlet hole 372 is formed through the wall of the ash collecting trough 371, corresponding to one end of the water outlet channel 312.

[0051] Reference Figure 6 、 Figure 7 The wall of the ash trough 311 is provided with a sliding groove 3112, into which a stopper 3113 is slidably connected. The stopper 3113 and the ash collecting block 37 are linked by a connecting rope 3114, which is threaded through the wall of the air inlet and outlet pipes 31. The stopper 3113 can open and close the notch of the ash trough 311. A third return member 3115 is provided within the sliding groove 3112 to drive the stopper 3113 to return to its original position. The third return member 3115 is a spring with one end fixedly connected to the stopper 3113 and the other end fixedly connected to the bottom of the sliding groove 3112.

[0052] Reference Figure 2 、 Figure 3 The bidirectional check mechanism 4 includes a partition 41 disposed between the first chamber 11 and the second chamber 12, an intermediate plate 42 axially rotatably disposed within the partition 41, and a second drive member 43 disposed on the outer wall of the secondary chamber and used to drive the intermediate plate 42 to rotate. The upper inner wall of the first chamber 11 is connected to the upper end surface of the partition 41 via a hollow connecting pipe. A connecting shaft is passed through the connecting pipe. One end of the connecting shaft is axially fixedly connected to the intermediate plate 42 and the other end is connected to the second drive member 43. The second drive member 43 is connected to one end of the connecting shaft via a coupling. A first air guide hole 44 is formed at an eccentric point on the partition 41, and a second air guide hole 45 is formed on the intermediate plate 42, which can be aligned with the first air guide hole 44. The second drive member 43 is a rotary cylinder disposed on the outer wall of the secondary chamber. By setting two fixed rotational positions, the first air guide hole 44 and the second air guide hole 45 can be aligned or completely misaligned.

[0053] Reference Figure 2 、 Figure 3 A transmitting sensor located at the first air guide hole 44 is provided in the partition 41, and a receiving sensor located at the second air guide hole 45 is provided in the middle plate 42. The control mechanism is connected to the transmitting sensor and the receiving sensor.

[0054] The implementation principle of the self-cleaning intelligent maintenance-free moisture absorber is as follows:

[0055] When the transformer inhales, the breathing mechanism 5 is opened, the exhaust mechanism 6 and the heating mechanism 7 are closed, the bidirectional check mechanism 4 connects the first chamber 11 and the second chamber 12, the air supply mechanism 33 introduces air from the air inlet and outlet pipe 31 into the dehumidification and drying chamber 21, the dry air after dehumidification enters the second chamber 12 of the secondary chamber, and then enters the transformer through the bidirectional check mechanism 4, the first chamber 11 and the breathing mechanism 5.

[0056] When the transformer exhales, the breathing mechanism 5 is opened, the exhaust mechanism 6 and the heating mechanism 7 are closed, the bidirectional check mechanism 4 connects the first chamber 11 and the second chamber 12, the gas enters the first chamber 11 of the secondary chamber through the breathing mechanism 5, and then enters the dehumidification and drying chamber 21 through the bidirectional check mechanism 4 and the second chamber 12, and finally enters the dehumidification and drying chamber 21. The air supply mechanism 33 discharges the gas after dehumidification and drying from the dehumidification and drying chamber 21 through the air inlet and outlet pipe 31, so that the maintenance-free moisture absorber can dehumidify and dry during the inhaling and exhaling processes of the transformer.

[0057] The filter 8 is conical and can be cleaned under the action of the cleaning assembly 9. The dust on the upper side of the filter 8 falls into the dust groove 311 along the inclined surface, and the dust on the lower side of the filter 8 is discharged from the air inlet and outlet pipe 31 during the exhaling process of the transformer. In this way, the filter 8 is self-cleaning, and the frequency of stopping work for replacing or cleaning the filter 8 is reduced.

[0058] Meanwhile, when the dehumidification and drying chamber 21 is dehydrated and dried, the bidirectional check mechanism 4 disconnects the first chamber 11 and the second chamber 12, the breathing mechanism 5 is closed, the exhaust mechanism 6 and the heating mechanism 7 are opened, the dehumidification and drying chamber 21 is heated and produces water vapor, the water vapor condenses into water along the inner wall of the condensation shell 2 and flows downward, the water flows into the drainage channel 32 of the lower end 3, and the water washes away the dust in the dust groove 311 and is finally discharged from the water outlet channel 312. In addition, part of the water vapor enters the second chamber 12 and is discharged from the exhaust mechanism 6, effectively reducing the damage to the transformer caused by the water vapor entering the transformer, realizing the dehydration and drying of the dehumidification and drying chamber 21 and the impurity removal of the dust groove 311, and effectively reducing the frequency of stopping work for replacing or cleaning the filter 8.

[0059] The first air guide hole 44 is aligned with the second air guide hole 45, the transmitting sensor is aligned with the receiving sensor, the signal is transmitted to the control mechanism, and the control mechanism controls the air supply mechanism 33 to start; the first air guide hole 44 is misaligned with the second air guide hole 45, the transmitting sensor is misaligned with the receiving sensor, and the dehumidification and drying chamber 21 needs to be dehydrated and dried, the control mechanism controls the exhaust mechanism 6 and the heating mechanism 7 to start.

[0060] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, and thus: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A self-cleaning intelligent maintenance-free moisture absorber, characterized in that: The application relates to a condensing casing, which comprises an upper end part (1), a lower end part (3) and a condensing casing (2) arranged between the upper end part (1) and the lower end part (3), wherein a dehumidifying and drying chamber (21) is arranged in the condensing casing (2), the upper end part (1) is provided with a secondary chamber which is communicated with the dehumidifying and drying chamber (21), the secondary chamber comprises a first chamber (11), a second chamber (12) and a bidirectional non-return mechanism (4) for controlling the communication or separation of the first chamber (11) and the second chamber (12), the secondary chamber is provided with a breathing mechanism (5) communicated with the first chamber (11) and an exhaust mechanism (6) communicated with the second chamber (12), and a heating mechanism (7) is arranged in the dehumidifying and drying chamber (21); the lower end part (3) is provided with an air inlet and outlet pipe (31) communicated with the dehumidifying and drying chamber (21), the air inlet and outlet pipe (31) is provided with a wind supply mechanism (33) and a filter (8) covering the gas flow range, the filter (8) is arranged in a conical shape and the radius gradually decreases towards the dehumidifying and drying chamber (21), the pipe wall of the air inlet and outlet pipe (31) is provided with an ash accumulation groove (311) corresponding to the edge of the filter (8), the wind supply mechanism (33) is provided with a cleaning assembly (9) for cleaning the opposite sides of the filter (8), the upper end surface of the lower end part (3) is provided with a drainage channel (32) communicated with the ash accumulation groove (311), and the pipe wall of the air inlet and outlet pipe (31) is provided with a water outlet channel (312) communicated with the ash accumulation groove (311). The upper end surface of the lower end part (3) is provided with a deposition groove (34), one end of the drainage channel (32) penetrates through the groove wall of the deposition groove (34), a water collecting block (35) with a water collecting groove (351) is slidably arranged in the deposition groove (34), a first reset member (36) is arranged in the deposition groove (34) and drives the water collecting block (35) to slide and reset, and the groove wall of the water collecting groove (351) is provided with a first water outlet hole (352) corresponding to one end of the drainage channel (32). The lower end groove wall of the ash accumulation groove (311) is provided with a movable groove (3111) and a dust collecting block (37) slidably arranged in the movable groove (3111), the dust collecting block (37) is provided with a dust collecting groove (371), one end of the drainage channel (32) penetrates through the upper end groove wall of the ash accumulation groove (311) and corresponds to the groove opening of the dust collecting groove (371), one end of the water outlet channel (312) penetrates through the groove wall of the movable groove (3111), a second reset member (38) is arranged in the movable groove (3111) and drives the dust collecting block (37) to slide and reset, and the groove wall of the dust collecting groove (371) is provided with a second water outlet hole (372) corresponding to one end of the water outlet channel (312). The groove wall of the ash accumulation groove (311) is provided with a sliding groove (3112), a stop block (3113) is slidably arranged in the sliding groove (3112), the stop block (3113) is linked with the ash collecting block (37) through a connecting rope (3114), the stop block (3113) can open and close the slot of the ash accumulation groove (311), and a third reset member (3115) for driving the stop block (3113) to slide back is arranged in the sliding groove (3112).

2. The self-cleaning smart maintenance-free moisture wick of claim 1, wherein: The filter member (8) comprises a fixed ring (81) fixedly arranged on the circumferential pipe wall of the air inlet and outlet pipe (31), a connecting ring (82) arranged axially on the inner side of the fixed ring (81), and a tapered mesh surface (83) arranged between the fixed ring (81) and the connecting ring (82).

3. The self-cleaning smart maintenance-free moisture wick of claim 2, wherein: The cleaning assembly (9) comprises a rotating shaft (91) rotationally connected to the connecting ring (82), two shaft sleeves (92) fixedly arranged axially on the rotating shaft (91), and a cleaning rod (93) arranged circumferentially and obliquely on the shaft sleeve (92), the cleaning rod (93) is in contact with the side surface of the corresponding tapered mesh surface (83), and the two shaft sleeves (92) are symmetrically arranged on both sides of the connecting ring (82), and the air supply mechanism (33) is provided with a first driving member for driving the rotating shaft (91) to rotate.

4. The self-cleaning smart maintenance-free moisture wick of claim 1, wherein: The bidirectional non-reversing mechanism (4) comprises a partition plate (41) arranged between the first chamber (11) and the second chamber (12), an intermediate plate (42) arranged axially and rotationally in the partition plate (41), a second driving member (43) arranged on the outer wall of the second chamber and used for driving the intermediate plate (42) to rotate, and a first air guide hole (44) arranged at the eccentric position of the partition plate (41), wherein the intermediate plate (42) is provided with a second air guide hole (45) capable of being aligned with the first air guide hole (44).

5. The self-cleaning smart maintenance-free moisture wick of claim 4, wherein: The partition plate (41) is provided with a transmitting sensor located at the first air guide hole (44), the intermediate plate (42) is provided with a receiving sensor located at the second air guide hole (45), one side of the upper end portion (1) is provided with a control mechanism, and the control mechanism is in communication with the air supply mechanism (33), the transmitting sensor, the receiving sensor, the air exhaust mechanism (6) and the heating mechanism (7).

6. The self-cleaning smart maintenance-free moisture wick of claim 5, wherein: The air exhaust mechanism (6) comprises an air exhaust pipe (61) and an air exhaust control valve (62) arranged on the upper end portion (1), one end of the air exhaust pipe (61) is in communication with the second chamber (12), and the air exhaust control valve (62) controls the on-off of the air exhaust pipe (61); the respiratory air mechanism (5) comprises a respiratory pipe (51) and a respiratory control valve (52) arranged on the upper end portion (1), the respiratory pipe (51) is in communication with the first chamber (11), and the respiratory control valve (52) controls the on-off of the respiratory pipe (51), and the air exhaust control valve (62) and the respiratory control valve (52) are connected with the control mechanism.

7. The self-cleaning smart maintenance-free moisture wick of claim 5, wherein: The heating mechanism (7) comprises a heater arranged at the bottom of the dehumidifying drying chamber (21) and a heating switch connected with the heater and the control mechanism.

Images