Underground pipe gallery ventilation and dehumidification device and underground pipe gallery

Abstract

The invention relates to the technical field of underground pipe galleries, and discloses an underground pipe gallery ventilation and dehumidification device and an underground pipe gallery. The underground pipe gallery ventilation and dehumidification device comprises a fan unit, a dehumidification unit, a stirring unit, an overturning unit and an ash removal unit; wherein the fan unit comprises a fan outer frame, an air inlet, a fan motor, a rotating seat and a plurality of axial flow blades, the air inlet is formed in the back of the fan outer frame, the fan motor is installed in the fan outer frame, the rotating seat is fixed to an output shaft of the fan motor, and the axial flow blades are all fixed to the rotating seat. The silica gel desiccant is used for dehumidifying air in the pipe gallery, the silica gel desiccant can effectively adsorb moisture in the air, the humidity of the air in the pipe gallery is remarkably reduced, the superficial area of the silica gel desiccant in the stirring state is more fully exposed in the air, the contact opportunity of the silica gel desiccant and the moisture is increased, and therefore the dehumidification efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground pipe corridors, and in particular to an underground pipe corridor ventilation and dehumidification device and an underground pipe corridor. Background Art

[0002] As an important part of urban infrastructure, underground pipeline corridors have complex environments and limited ventilation conditions. In addition, factors such as underground water vapor infiltration and pipeline leakage make it very easy for a high-humidity environment to form inside the pipeline corridor. Long-term high-humidity environment will lead to accelerated corrosion of metal components and reduced insulation performance of electrical equipment. It may also cause safety hazards such as short circuits and fires, seriously affecting the normal operation of urban infrastructure. Therefore, ventilation and dehumidification devices in underground pipeline corridors are crucial.

[0003] After searching, the Chinese patent with the announcement number CN218833415U discloses a ventilation device for a pipe gallery, including a ventilation booth, a pipe gallery body is fixed at the bottom of the ventilation booth, shutters are inlaid on the surfaces of both sides of the ventilation booth, a fixed frame is blown at the top position of the pipe gallery body, and an induced draft fan is installed inside the fixed frame through a support frame, a rapid escape mechanism is arranged on the surface of the ventilation booth and the pipe gallery body, and the interior of the rapid escape mechanism includes a second escape part and a first escape part, a dehumidification mechanism is arranged on the surface of the fixed frame, and the dehumidification mechanism is composed of a drainage component, a filter screen and a dehumidification membrane, an air guide mechanism is arranged at the bottom of the fixed frame, and an installation component and a diffuser are arranged inside the air guide mechanism. The above scheme is not only easier to promote and apply, but also improves the ventilation effect when the ventilation device is used, and avoids the phenomenon that the metal components are rusted due to humid air when the ventilation device is used. However, the above scheme still has the following shortcomings when it is actually used: The above scheme mainly relies on the dehumidification membrane to dehumidify the air. Although it can effectively reduce humidity to a certain extent, it has significant disadvantages. Specifically, the water absorption performance of the dehumidification membrane is limited, which means that its dehumidification capacity will gradually weaken over time until it reaches saturation. Once the dehumidification membrane reaches saturation, it will not only be unable to continue to dehumidify effectively, but may also hinder air circulation and affect the ventilation effect in the tunnel. What is more troublesome is that due to the limited performance of the dehumidification membrane, staff need to frequently inspect and replace it, which not only increases maintenance costs, but may also cause interruptions in tunnel operations and affect the normal operation of urban infrastructure.

[0004] Therefore, it is necessary to design an underground pipe gallery ventilation and dehumidification device and an underground pipe gallery to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an underground pipe gallery ventilation and dehumidification device and an underground pipe gallery.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: An underground pipe gallery ventilation and dehumidification device comprises a fan unit, a dehumidification unit, a stirring unit, a turning unit and a dust cleaning unit; Wherein, the fan unit comprises a fan outer frame, an air inlet and a fan motor, the air inlet is opened at the back of the fan outer frame, and the fan motor is installed inside the fan outer frame; Wherein, the dehumidification unit includes an external structure and an internal structure, the external structure includes a tailstock, the tailstock is fixed to the back of the fan outer frame through a plurality of connecting blocks, and there is a gap between the tailstock and the fan outer frame, the tailstock is provided with two first openings, and the two first openings are arranged opposite to the air inlet, the internal structure includes a dehumidification seat, the dehumidification seat is arranged inside the tailstock, a silica gel desiccant is arranged inside the dehumidification seat, the dehumidification seat is provided with two second openings, the two second openings are arranged opposite to the two first openings respectively, and an arc-shaped electric heating plate is installed inside the dehumidification seat; Wherein, the stirring unit includes a stirring structure, a driving structure and a transmission structure. When the fan motor is running, the driving structure and the transmission structure cooperate to drive the stirring structure to rotate; Wherein, the flip unit is arranged on the side of the tail seat away from the fan outer frame, and is used to control the flipping of the dehumidification seat; Wherein, the dust cleaning unit comprises a dust cleaning structure and a dust collecting structure, and the dust cleaning structure and the dust collecting structure are both arranged on the side of the tail seat away from the fan outer frame.

[0007] As a preferred technical solution of the present invention, the stirring structure includes a rotating rod and a plurality of stirring rods. The rotating rod is rotatably installed on the back of the fan outer frame, one end of the rotating rod extends to the interior of the dehumidifier seat, and the plurality of stirring rods are fixed at one end of the rotating rod located inside the dehumidifier seat.

[0008] As a preferred technical solution of the present invention, the external structure also includes a dustproof net, a first hole position and a second hole position, the dustproof net is fixed in a first opening away from the fan outer frame, the first hole position is opened on the side of the tail seat close to the fan outer frame, the second hole position is opened on the side of the tail seat away from the fan outer frame, the rotating rod passes through the first hole position, and there is no contact between the rotating rod and the first hole position.

[0009] As a preferred technical solution of the present invention, the driving structure is arranged inside the fan outer frame, and the driving structure includes a fixed plate, a rotating shaft, a first eccentric wheel, a first gear, a second gear and an air supply member. The fixed plate is fixed inside the fan outer frame, and the rotating shaft is rotatably assembled on the fixed plate. The first eccentric wheel is fixedly sleeved on the rotating shaft, and the first eccentric wheel and the rotating shaft are eccentrically arranged. The first gear is fixedly sleeved on the output shaft of the fan motor, and the second gear is fixedly sleeved on the rotating shaft. The first gear and the second gear are meshed with each other. The air supply member is arranged inside the fan outer frame, and the air supply member includes a first sealing cylinder, a first sliding plug and a first connecting rod. The first sealing cylinder is fixed inside the fan outer frame, and the first sliding plug is sealingly and slidingly connected to the inside of the first sealing cylinder. One end of the first connecting rod is fixedly connected to the first sliding plug, and the other end extends to the outside of the first sealing cylinder. The first connecting rod is arranged opposite to the first eccentric wheel, and the first sliding plug is connected to the inner surface of the first sealing cylinder by a first spring.

[0010] As a preferred technical solution of the present invention, the transmission structure is arranged on the side of the tail seat close to the fan outer frame, and the transmission structure includes a side plate, a second sealing cylinder, a second sliding plug, a second connecting rod, a connecting plate, a rack and a third gear. The side plate is fixed to the side of the tail seat, the second sealing cylinder is fixed to the side of the side plate, the second sealing cylinder is connected to the first sealing cylinder through an air guide pipe, the second sliding plug is sealingly slidably connected to the inside of the second sealing cylinder, one end of the second connecting rod is fixedly connected to the second sliding plug, and the other end extends to the outside of the second sealing cylinder, the second sliding plug is connected to the inner surface of the second sealing cylinder by a second spring, one end of the connecting rod is fixed to one end of the second connecting rod located outside the second sealing cylinder, and the other end is fixedly connected to the rack, the third gear is rotatably assembled on the end of the rotating rod located outside the tail seat through a one-way bearing, and the rack and the third gear are meshed with each other.

[0011] As a preferred technical solution of the present invention, the flipping unit includes a driving motor, a rotating rod, a fourth gear and a fifth gear. The driving motor is installed on the side of the tail stock. The rotating rod passes through the second hole and is rotatably installed in the second hole. One end of the rotating rod located inside the tail stock is fixedly connected to the dehumidifier seat, and the rotating rod and the dehumidifier seat are coaxially arranged. The fourth gear is fixedly sleeved on the rotating rod, and the fifth gear is fixedly sleeved on the output shaft of the driving motor, and the fourth gear and the fifth gear are meshed with each other.

[0012] As a preferred technical solution of the present invention, the cleaning structure includes a cleaning plate, bristles and a cleaning comb. The cleaning plate is fixedly mounted on a rotating rod, the bristles are arranged on the cleaning plate, the cleaning comb is fixed on the side of the tail seat, and a plurality of comb teeth are arranged on the cleaning comb. A tooth groove is formed between two adjacent comb teeth, and each of the tooth grooves is located on the rotation path of the bristles.

[0013] As a preferred technical solution of the present invention, the dust collection structure includes a dust suction pipe, a second eccentric wheel, a third sealing cylinder, a third sliding plug, a third connecting rod, two mounting tubes, two one-way valves and a dust collecting box, the third sealing cylinder is fixed to the side of the tail seat through two connecting rods, the dust suction pipe is fixed on the third sealing cylinder, a plurality of dust suction holes are opened on the dust suction pipe, each of the dust suction holes is arranged toward the cleaning comb, the second eccentric wheel is fixedly sleeved on the rotating rod, the third sliding plug is sealingly and slidably connected to the inside of the third sealing cylinder, one end of the third connecting rod is fixedly connected to the third sliding plug, and the other end extends to the outside of the third sealing cylinder, the third connecting rod is arranged opposite to the second eccentric wheel, the third sliding plug is connected to the inner surface of the third sealing cylinder by a third spring, the two mounting tubes are connected to the third sealing cylinder, the two one-way valves are respectively installed on the two mounting tubes, the dust collecting box is arranged on the side of the tail seat, one end of one of the mounting tubes away from the third sealing cylinder is connected to the dust suction pipe, and the other end of the mounting tube away from the third sealing cylinder is connected to the dust collecting box.

[0014] As a preferred technical solution of the present invention, the fan unit also includes a rotating seat and a plurality of axial flow blades, the rotating seat is fixed on the output shaft of the fan motor, and the plurality of axial flow blades are fixed on the rotating seat, a tail cover is fixed on the side of the tail seat away from the fan outer frame, and a mounting opening is provided on the tail cover that is opposite to the first opening, the flip unit and the cleaning unit are both inside the tail cover, and partition nets are fixed in the two second openings.

[0015] An underground pipe gallery, wherein a plurality of the above-mentioned underground pipe gallery ventilation and dehumidification devices are arranged inside the underground pipe gallery.

[0016] The present invention has the following beneficial effects: 1. When air flows through the area filled with silica gel desiccant, the silica gel desiccant can effectively absorb moisture in the air and significantly reduce the humidity of the air inside the pipe gallery. The surface area of ​​the silica gel desiccant in the agitated state is more fully exposed to the air, increasing the chance of contact with moisture, thereby improving the dehumidification efficiency. In addition, the agitation design avoids the problem of uneven dehumidification caused by local saturation of the silica gel desiccant, ensuring that the air can be dried evenly and quickly in the entire dehumidification seat. Secondly, the agitation of the agitation rod can break up the silica gel desiccant lumps formed by long-term standing and keep them loose, thereby extending the service life of the silica gel desiccant and maintaining its efficient dehumidification performance; 2. The drive structure and transmission structure transmit the power of the fan motor to the rotating rod to support the rotation of the stirring rod. There is no need to set up a separate power source for the stirring unit, which reduces the complexity and cost of the equipment. The fan motor drives the stirring rod to rotate while driving the fan unit, realizing the sharing and efficient use of the power source, avoiding the energy consumption of additional power sources, reducing the overall energy consumption of the equipment, and complying with the environmental protection concept of energy saving and emission reduction; 3. The function of heating and desorption of silica gel desiccant is designed to achieve many significant benefits. This function can not only restore the water absorption performance of silica gel desiccant, thereby extending its service life and reducing the number of times the staff replaces the desiccant, but also through the precise mechanical linkage design, the dehumidification seat can be flipped 180°, allowing the silica gel desiccant to fall directly on the electric heating plate for heating treatment. The heating action is synchronized with the flipping action of the stirring rod, ensuring that the silica gel desiccant can be heated evenly and comprehensively, greatly improving the desorption effect of the electric heating plate on the silica gel desiccant; 4. The present invention realizes automatic cleaning of the dustproof net and effective collection and treatment of dust generated during the cleaning process. When the rotating rod drives the dehumidification seat to flip, the cleaning unit is also started accordingly, and the bristles on the cleaning plate are used to effectively brush off the dust attached to the dustproof net, thereby ensuring that the dustproof net is unobstructed and avoiding performance degradation caused by dust clogging. In addition, by introducing the design of a cleaning comb, not only the dust on the bristles is further cleaned, but also the flow principle of gas is cleverly utilized. Through the reciprocating movement of the third sliding plug and the cooperation of the one-way valve, the collection and transfer of dust on the cleaning comb is realized. During the movement of the third sliding plug, the third sealing cylinder alternately performs exhaust and suction actions. The dust suction hole absorbs the dust on the cleaning comb under the action of negative pressure, and discharges it into the dust collecting box through the dust suction pipe, thereby avoiding secondary adhesion and pollution of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an underground pipe gallery ventilation and dehumidification device proposed by the present invention; Figure 2 This is a structural schematic diagram of an underground pipe gallery ventilation and dehumidification device proposed by the present invention from another perspective; Figure 3 is a structural schematic diagram of a fan unit; Figure 4 It is a schematic diagram of the structure of the driving structure; Figure 5 is a schematic diagram of the cross-sectional structure of the fan outer frame; Figure 6 It is a schematic diagram of the structure of the tailstock, the turning unit and the cleaning unit; Figure 7 It is a structural diagram of the tailstock and the transmission structure; Figure 8 is a schematic cross-sectional structural diagram of the second sealing cylinder; Fig. 9 is a schematic cross-sectional structural diagram of the third sealing cylinder; Fig.10 It is a schematic diagram of the cross-sectional structure of the tailstock and the dehumidification seat; Fig.11 for Figure 4 A magnified view of the structure at A; Fig.12 for Figure 6 A magnified view of the structure at B; Fig.13 This is a structural schematic diagram of the tailstock, the turning unit and the cleaning unit from another perspective; Fig.14 This is a schematic diagram of the structure of the underground pipe gallery and several ventilation and dehumidification devices.

[0018] In the figure: 11, fan frame; 12, air inlet; 13, fan motor; 14, rotating seat; 15, axial flow blade; 21, tail seat; 22, first opening; 23, dust net; 24, first hole; 25, second hole; 26, tail cover; 27, installation port; 31, dehumidification seat; 32, second opening; 33, partition net; 34, electric heating plate; 41, rotating rod; 42, stirring rod; 51, fixed plate; 52, rotating shaft; 53, first eccentric wheel; 54, first gear; 55, second gear; 56, first sealing cylinder; 57, first sliding plug; 58, first connecting rod; 59, first spring ; 61. side plate; 62. second sealing cylinder; 63. second sliding plug; 64. second connecting rod; 65. second spring; 66. connecting plate; 67. rack; 68. third gear; 69. one-way bearing; 71. driving motor; 72. rotating rod; 73. fourth gear; 74. fifth gear; 81. cleaning plate; 82. bristles; 83. cleaning comb; 84. tooth groove; 91. dust suction pipe; 92. dust suction hole; 93. second eccentric wheel; 94. third sealing cylinder; 95. third sliding plug; 96. third connecting rod; 97. third spring; 98. mounting tube; 99. one-way valve; 910. dust collecting box. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] The present invention discloses an underground pipe gallery ventilation and dehumidification device, referring to Figure 1-13 A ventilation and dehumidification device for an underground pipe gallery comprises a fan unit, a dehumidification unit, a stirring unit, a turning unit and a cleaning unit.

[0021] Among them, the fan unit includes a fan frame 11, an air inlet 12, a fan motor 13, a rotating seat 14 and a plurality of axial flow blades 15. The air inlet 12 is opened on the back of the fan frame 11, the fan motor 13 is installed inside the fan frame 11, the rotating seat 14 is fixed on the output shaft of the fan motor 13, and the plurality of axial flow blades 15 are all fixed on the rotating seat 14.

[0022] Among them, the dehumidification unit includes an external structure and an internal structure. The external structure includes a tail seat 21. The tail seat 21 is fixed to the back of the fan outer frame 11 through a plurality of connecting blocks, and there is a gap between the tail seat 21 and the fan outer frame 11. Two first openings 22 arranged opposite to each other are opened on the tail seat 21, and the two first openings 22 are arranged opposite to the air inlet 12. The external structure also includes a dustproof net 23, a first hole 24 and a second hole 25. The dustproof net 23 is fixed in the first opening 22 away from the fan outer frame 11. The first hole 24 is opened on the side of the tail seat 21 close to the fan outer frame 11, and the second hole 25 is opened on the side of the tail seat 21 away from the fan outer frame 11. The rotating rod 41 passes through the first hole 24, and there is no contact between the rotating rod 41 and the first hole 24. A tail cover 26 is fixed on the side of the tail seat 21 away from the fan outer frame 11. The tail cover 26 is provided with an installation port 27 arranged opposite to the first opening 22, and the flip unit and the cleaning unit are both inside the tail cover 26. The internal structure includes a dehumidification seat 31, which is arranged inside the tail seat 21. A silica gel desiccant is arranged inside the dehumidification seat 31. Two second openings 32 arranged opposite to each other are opened on the dehumidification seat 31. The two second openings 32 are arranged opposite to the two first openings 22. A partition net 33 is fixed in the two second openings 32. An arc-shaped electric heating plate 34 is installed inside the dehumidification seat 31.

[0023] The fan motor 13 runs, driving the rotating seat 14 to rotate, and the multiple axial flow blades 15 arranged on the rotating seat 14 rotate accordingly and perform the wind-inducing action. Under the wind-inducing action of the multiple axial flow blades 15, the air inside the duct corridor enters the dehumidification seat 31, and then enters the fan outer frame 11 through the air inlet 12, and finally is discharged from the fan outer frame 11 under the action of the multiple axial flow blades 15. The installation port 27, the two first openings 22, the two second openings 32 and the air inlet 12 are set to provide an air duct for the flow of air.

[0024] The stirring unit includes a stirring structure, a driving structure and a transmission structure. The stirring structure includes a rotating rod 41 and a plurality of stirring rods 42. The rotating rod 41 is rotatably installed on the back of the fan outer frame 11. One end of the rotating rod 41 extends to the inside of the dehumidifier seat 31. The plurality of stirring rods 42 are all fixed to one end of the rotating rod 41 located inside the dehumidifier seat 31. The driving structure is arranged inside the fan outer frame 11. The transmission structure is arranged on the side of the tail seat 21 close to the fan outer frame 11. When the fan motor 13 is running, the driving structure and the transmission structure cooperate to drive the rotating rod 41 to rotate. The present invention is designed with a stirring unit, the purpose of which is to use a stirring rod 42 to stir the silica gel desiccant so that the silica gel desiccant is always in a stirred state. Compared with the silica gel desiccant in a static state, the silica gel desiccant in a stirred state can more effectively absorb moisture in the air. Since the silica gel desiccant particles are constantly turning, their surface area can be more fully exposed to the flowing air, thereby increasing the chance of contact with moisture in the air, which not only improves the dehumidification efficiency, but also ensures that the silica gel desiccant can absorb moisture evenly and quickly.

[0025] The driving structure includes a fixed plate 51, a rotating shaft 52, a first eccentric wheel 53, a first gear 54, a second gear 55 and an air supply component. The fixed plate 51 is fixed inside the fan outer frame 11, the rotating shaft 52 is rotatably assembled on the fixed plate 51, the first eccentric wheel 53 is fixedly mounted on the rotating shaft 52, and the first eccentric wheel 53 and the rotating shaft 52 are eccentrically arranged, the first gear 54 is fixedly mounted on the output shaft of the fan motor 13, the second gear 55 is fixedly mounted on the rotating shaft 52, the first gear 54 and the second gear 55 are meshed with each other, and the air supply component is arranged inside the fan outer frame 11. The air supply component includes a first sealing cylinder 56, a first sliding plug 57 and a first connecting rod 58. The first sealing cylinder 56 is fixed inside the fan outer frame 11. The first sliding plug 57 is sealingly and slidingly connected inside the first sealing cylinder 56. One end of the first connecting rod 58 is fixedly connected to the first sliding plug 57, and the other end extends to the outside of the first sealing cylinder 56. The first connecting rod 58 is arranged opposite to the first eccentric wheel 53. The first sliding plug 57 and the inner surface of the first sealing cylinder 56 are connected by a first spring 59.

[0026] The transmission structure includes a side plate 61, a second sealing cylinder 62, a second sliding plug 63, a second connecting rod 64, a connecting plate 66, a rack 67 and a third gear 68. The side plate 61 is fixed to the side of the tailstock 21, the second sealing cylinder 62 is fixed to the side of the side plate 61, the second sealing cylinder 62 is connected to the first sealing cylinder 56 through an air guide pipe, the second sliding plug 63 is sealingly and slidably connected to the inside of the second sealing cylinder 62, one end of the second connecting rod 64 is fixedly connected to the second sliding plug 63, and the other end extends to the outside of the second sealing cylinder 62, the second sliding plug 63 is connected to the inner surface of the second sealing cylinder 62 through a second spring 65, one end of the connecting rod is fixed to one end of the second connecting rod 64 located outside the second sealing cylinder 62, and the other end is fixedly connected to the rack 67, the third gear 68 is rotatably assembled on one end of the rotating rod 41 located outside the tailstock 21 through a one-way bearing 69, and the rack 67 and the third gear 68 are meshed with each other.

[0027] The flipping unit is arranged on the side of the tail stock 21 away from the fan outer frame 11, and is used to control the flipping of the dehumidifier seat 31. The flipping unit includes a driving motor 71, a rotating rod 72, a fourth gear 73 and a fifth gear 74. The driving motor 71 is installed on the side of the tail stock 21. The rotating rod 72 passes through the second hole 25 and is rotatably installed in the second hole 25. One end of the rotating rod 72 located inside the tail stock 21 is fixedly connected to the dehumidifier seat 31, and the rotating rod 72 and the dehumidifier seat 31 are coaxially arranged. The fourth gear 73 is fixedly sleeved on the rotating rod 72, and the fifth gear 74 is fixedly sleeved on the output shaft of the driving motor 71, and the fourth gear 73 and the fifth gear 74 are meshed with each other.

[0028] The present invention also has a function of heating and desorbing the silica gel desiccant. By heating and desorbing the desiccant, the water absorption performance of the desiccant can be restored, thereby extending the service life of the desiccant and reducing the number of times the staff replaces the desiccant. Specifically, when the silica gel desiccant needs to be desorbed, the staff controls the driving motor 71 to operate and energizes the electric heating plate 34. When the driving motor 71 operates, it can drive the rotating rod 72 to rotate through the fourth gear 73 and the fifth gear 74. When the rotating rod 72 rotates, it will drive the dehumidification seat 31 to rotate until the dehumidification seat 31 flips 180°. In the initial state, the electric heating plate 34 is located at the top of the tailstock 21. When the dehumidification seat 31 flips 180°, the electric heating plate 34 flips to the bottom of the tailstock 21, so that the silica gel desiccant can fall on the electric heating plate 34. In this case, when the electric heating plate 34 is energized and heated, the silica gel desiccant can be heated to make the water absorbed in the silica gel desiccant escape, thereby restoring the water absorption performance of the silica gel desiccant.

[0029] The dust cleaning unit includes a dust cleaning structure and a dust collecting structure, both of which are arranged on the side of the tail seat 21 away from the fan outer frame 11. The dust cleaning structure includes a dust cleaning plate 81, a brush 82 and a dust cleaning comb 83. The dust cleaning plate 81 is fixedly sleeved on the rotating rod 72, the brush 82 is arranged on the dust cleaning plate 81, and the dust cleaning comb 83 is fixed on the side of the tail seat 21. When the rotating rod 72 drives the dehumidification seat 31 to perform a flipping action, the dust cleaning unit operates accordingly and cleans the dust attached to the dustproof net 23 to prevent the dust from clogging the dustproof net 23. Specifically, when the rotating rod 72 rotates, it can drive the dust cleaning plate 81 to rotate. In the initial state, the dust cleaning plate 81 is in a horizontal state. When the dust cleaning plate 81 rotates 180°, the dust cleaning plate 81 will sweep the dustproof net 23. The brush 82 arranged on the dust cleaning plate 81 can brush off the dust attached to the surface of the dustproof net 23, so as to clean and dredge the dustproof net 23.

[0030] A number of comb teeth are arranged on the cleaning comb 83, and tooth grooves 84 are formed between two adjacent comb teeth. Each tooth groove 84 is located on the rotation path of the bristles 82. When the cleaning plate 81 rotates, the bristles 82 thereon will pass through the number of tooth grooves 84 on the cleaning comb 83. In this process, the cleaning comb 83 can scrape off the dust attached to the bristles 82 and transfer the dust on the bristles 82 to the cleaning comb 83.

[0031] The dust collection structure includes a dust suction pipe 91, a second eccentric wheel 93, a third sealing cylinder 94, a third sliding plug 95, a third connecting rod 96, two mounting tubes 98, two one-way valves 99 and a dust collecting box 910. The third sealing cylinder 94 is fixed to the side of the tailstock 21 by two connecting rods. The dust suction pipe 91 is fixed to the third sealing cylinder 94. A plurality of dust suction holes 92 are provided on the dust suction pipe 91. Each dust suction hole 92 is arranged toward the cleaning comb 83. The second eccentric wheel 93 is fixedly sleeved on the rotating rod 72. The third sliding plug 95 is sealingly and slidably connected to the inside of the third sealing cylinder 94. One end of the third connecting rod 96 is fixedly connected to the third sliding plug 95. The third connecting rod 96 is arranged opposite to the second eccentric wheel 93. The third sliding plug 95 is connected to the inner surface of the third sealing cylinder 94 by a third spring 97. The two mounting tubes 98 are connected to the third sealing cylinder 94. The two one-way valves 99 are respectively installed on the two mounting tubes 98. The limiting directions of the two one-way valves 99 are opposite. The dust collecting box 910 is arranged on the side of the tail seat 21. One end of one mounting tube 98 away from the third sealing cylinder 94 is connected to the dust suction pipe 91, and the other end of the mounting tube 98 away from the third sealing cylinder 94 is connected to the dust collecting box 910.

[0032] When the third sliding plug 95 moves under the squeezing action of the second eccentric wheel 93, the third sealing cylinder 94 performs an exhaust action. At this time, the gas in the third sealing cylinder 94 is discharged into the dust collecting box 910. When the third sliding plug 95 is reset, the third sealing cylinder 94 performs a vacuum action and extracts the gas in the dust suction pipe 91. During the vacuum process, a number of dust suction holes 92 can absorb the airflow under the action of negative pressure. The dust attached to the cleaning comb 83 will be sucked into the dust suction pipe 91 by the number of dust suction holes 92, and discharged into the dust collecting box 910 during the subsequent movement of the third sliding plug 95. This design can collect the dust on the cleaning comb 83, avoid the dust from attaching to the bristles 82 again, and thereby avoid the dust from causing secondary pollution to the dustproof net 23.

[0033] The present invention also discloses an underground pipe gallery, referring to Fig.14 Several of the above-mentioned underground pipe gallery ventilation and dehumidification devices are arranged inside the underground pipe gallery.

[0034] The specific working principle of the present invention is as follows: The underground pipe gallery ventilation and dehumidification device proposed in the present invention is installed at the top of the underground pipe gallery. When the ventilation and dehumidification device is working, the fan motor 13 runs, driving the rotating seat 14 to rotate, and the multiple axial flow blades 15 arranged on the rotating seat 14 rotate accordingly and perform wind-inducing action. Under the wind-inducing action of the multiple axial flow blades 15, the air inside the pipe gallery enters the dehumidification seat 31, and then enters the inside of the fan outer frame 11 through the air inlet 12, and is finally discharged from the inside of the fan outer frame 11 under the action of the multiple axial flow blades 15. The installation port 27, the two first openings 22, the two second openings 32 and the air inlet 12 are arranged to provide an air duct for the flow of air.

[0035] Silica gel desiccant is stored inside the dehumidification seat 31, and the silica gel desiccant occupies at least one-half of the internal space of the dehumidification seat 31, so that the area inside the dehumidification seat 31 facing the two second openings 32 is completely filled with silica gel desiccant. In this case, when the air flows through the dehumidification seat 31 through the two second openings 32, the air will inevitably pass through the silica gel desiccant. In this process, the silica gel desiccant can absorb the moisture mixed in the air, and play a role in dehumidifying and drying the air. The dried air is then discharged through the fan unit. The present invention uses silica gel desiccant to dehumidify the air inside the pipe gallery, which can effectively reduce the humidity of the air inside the pipe gallery. In the present invention, in order to make the air and the silica gel desiccant fully contact, the present invention designs a stirring unit, the purpose of which is to use the stirring rod 42 to stir the silica gel desiccant, so that the silica gel desiccant is always in a flipped state. Compared with the silica gel desiccant in a static state, the silica gel desiccant in the stirred state can more effectively absorb moisture in the air. Since the silica gel desiccant particles are constantly turning over, their surface area is more fully exposed to the flowing air, thereby increasing the chance of contact with moisture in the air, which not only improves the dehumidification efficiency, but also ensures that the silica gel desiccant can absorb moisture evenly and quickly, avoiding the problem of uneven dehumidification caused by local saturation. In addition, the stirring design also helps to prevent the silica gel desiccant from agglomerating or hardening. When left standing for a long time, the silica gel desiccant may gradually stick together due to the absorption of moisture, forming lumps that are difficult to disperse, and the stirring of the stirring rod 42 can break up these lumps and keep the silica gel desiccant in a loose state, thereby extending its service life and maintaining its efficient dehumidification performance.

[0036] Specifically, for the stirring unit, when the fan motor 13 is running, the rotating shaft 52 can be driven to rotate through the first gear 54 and the second gear 55 that mesh with each other. When the rotating shaft 52 rotates, the first eccentric wheel 53 is driven to rotate. When the first eccentric wheel 53 rotates, the first connecting rod 58 is continuously squeezed. When the first eccentric wheel 53 squeezes the first connecting rod 58, the first connecting rod 58 drives the first sliding plug 57 to move. When the first sliding plug 57 moves, the gas in the first sealing cylinder 56 can be pressed into the second sealing cylinder 62 through the air guide tube. When the gas enters the second sealing cylinder 62, the gas pushes the second sliding plug 63 to move, so that the second connecting rod 64 moves. When the first eccentric wheel 53 is separated from the first connecting rod 58, the first sliding plug 57 will be reset under the elastic force of the first spring 59. When the first sliding plug 57 is reset, the gas in the second sealing cylinder 62 can be extracted through the air guide tube. When the gas in the second sealing cylinder 62 is extracted, the second sliding plug 63 will be reset under the elastic force of the second spring 65, and the second connecting rod 64 will also be reset accordingly. Based on the above process, along with the operation of the fan motor 13, the second connecting rod 64 will continuously extend and retract, which makes the rack 67 reciprocate. When the second connecting rod 64 is extended, the rack 67 drives the third gear 68 to rotate forward. At this time, the rotation direction of the third gear 68 is the same as the locking direction of the one-way bearing 69, and the third gear 68 can drive the rotating rod 41 to rotate through the one-way bearing 69. When the second connecting rod 64 retracts, the rack 67 drives the third gear 68 to rotate in the opposite direction. At this time, the rotation direction of the third gear 68 is opposite to the locking direction of the one-way bearing 69. The third gear 68 cannot drive the rotating rod 41 to rotate through the one-way bearing 69, that is, the third gear 68 rotates in the opposite direction and the rotating rod 41 is stationary. Therefore, under the action of the one-way bearing 69, when the third gear 68 rotates forward and reversely, the rotating rod 41 can periodically rotate in one direction, and the several stirring rods 42 arranged on the rotating rod 41 also periodically rotate in one direction, thereby realizing the flipping effect on the silica gel desiccant.

[0037] The present invention also has a function of heating and desorbing the silica gel desiccant. By heating and desorbing the desiccant, the water absorption performance of the desiccant can be restored, thereby extending the service life of the desiccant and reducing the number of times the staff replaces the desiccant. Specifically, when the silica gel desiccant needs to be desorbed, the staff controls the drive motor 71 to operate and energizes the electric heating plate 34. When the drive motor 71 is operating, it can drive the rotating rod 72 to rotate through the fourth gear 73 and the fifth gear 74. When the rotating rod 72 rotates, it will drive the dehumidification seat 31 to rotate until the dehumidification seat 31 flips 180°. In the initial state, the electric heating plate 34 is located at the top of the tailstock 21. When the dehumidification seat 31 flips 180 degrees, the electric heating plate 34 flips to the bottom of the tailstock 21, which allows the silica gel desiccant to fall on the electric heating plate 34. In this case, the electric heating plate 34 can heat the silica gel desiccant when it is powered on to generate heat, so that the moisture adsorbed in the silica gel desiccant escapes, thereby restoring the water absorption performance of the silica gel desiccant. At the same time, the heating action is synchronized with the flipping action of the plurality of stirring rods 42, so that the silica gel desiccant can be heated evenly and comprehensively, thereby improving the desorption effect of the electric heating plate 34 on the silica gel desiccant.

[0038] When the rotating rod 72 drives the dehumidifying seat 31 to turn over, the cleaning unit operates accordingly and cleans the dust attached to the dustproof net 23 to prevent the dust from clogging the dustproof net 23. Specifically, when the rotating rod 72 rotates, it can drive the cleaning plate 81 to rotate. In the initial state, the cleaning plate 81 is in a horizontal state. When the cleaning plate 81 rotates 180°, the cleaning plate 81 will sweep over the dustproof net 23. The bristles 82 arranged on the cleaning plate 81 can brush off the dust attached to the surface of the dustproof net 23, thereby cleaning and unblocking the dustproof net 23. Furthermore, a cleaning comb 83 is fixed on the side of the tailstock 21. When the cleaning plate 81 rotates, the bristles 82 thereon will pass through a number of tooth grooves 84 on the cleaning comb 83. In this process, the cleaning comb 83 can scrape off the dust attached to the bristles 82, so that the dust on the bristles 82 is transferred to the cleaning comb 83. In addition, the rotating rod 72 can also drive the second eccentric wheel 93 to rotate when it rotates. When the second eccentric wheel 93 rotates, it will squeeze the third connecting rod 96. When the second eccentric wheel 93 squeezes the third connecting rod 96, the third connecting rod 96 will drive the third sliding plug 95 to move. When the second eccentric wheel 93 is separated from the third connecting rod 96, the third sliding plug 95 will be reset under the action of the third spring 97. Therefore, the rotation action of the second eccentric wheel 93 is converted into the reciprocating movement of the third sliding plug 95. In the 180° rotation stroke of the eccentric wheel, the third sliding plug 95 just makes a complete reciprocating movement. The third sealing cylinder 94 is connected to two mounting tubes 98, and both mounting tubes 98 are equipped with one-way valves 99, and the flow limiting directions of the two one-way valves 99 are opposite. Specifically, the one-way valve 99 restricts the gas to flow out of the third sealing cylinder 94, and the other one-way valve 99 restricts the gas to flow into the third sealing cylinder 94. Therefore, when the third sliding plug 95 moves under the squeezing action of the second eccentric wheel 93, the third sealing cylinder 94 performs an exhaust action. At this time, the gas in the third sealing cylinder 94 is discharged into the dust collecting box 910. When the third sliding plug 95 is reset, the third sealing tube 94 performs a vacuum action and extracts the gas in the dust suction pipe 91. During the vacuum process, the plurality of dust suction holes 92 can absorb the airflow under the action of negative pressure. The dust attached to the cleaning comb 83 will be sucked into the dust suction pipe 91 by the plurality of dust suction holes 92, and discharged into the dust collecting box 910 during the subsequent movement of the third sliding plug 95. This design can collect the dust on the cleaning comb 83, prevent the dust from attaching to the bristles 82 again, and further prevent the dust from causing secondary pollution to the dustproof net 23.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An underground pipe gallery ventilation and dehumidification device, characterized in that: It includes a fan unit, a dehumidification unit, a stirring unit, a turning unit and a dust cleaning unit; The fan unit comprises a fan outer frame (11), an air inlet (12) and a fan motor (13); the air inlet (12) is provided at the back of the fan outer frame (11), and the fan motor (13) is installed inside the fan outer frame (11); The dehumidification unit comprises an external structure and an internal structure, the external structure comprising a tail seat (21), the tail seat (21) being fixed to the back of the fan outer frame (11) through a plurality of connecting blocks, and a gap being provided between the tail seat (21) and the fan outer frame (11), the tail seat (21) being provided with two first openings (22), the two first openings (22) being arranged facing the air inlet (12), the internal structure comprising a dehumidification seat (31), the dehumidification seat (31) being arranged inside the tail seat (21), a silica gel desiccant being arranged inside the dehumidification seat (31), the dehumidification seat (31) being provided with two second openings (32), the two second openings (32) being arranged facing the two first openings (22) respectively, and an arc-shaped electric heating plate (34) being installed inside the dehumidification seat (31); The stirring unit comprises a stirring structure, a driving structure and a transmission structure. When the fan motor (13) is running, the driving structure and the transmission structure cooperate to drive the stirring structure to rotate. The flipping unit is arranged on a side of the tail seat (21) facing away from the fan outer frame (11) and is used to control the flipping of the dehumidification seat (31); The dust cleaning unit comprises a dust cleaning structure and a dust collecting structure, and the dust cleaning structure and the dust collecting structure are both arranged on the side of the tail seat (21) facing away from the fan outer frame (11).

2. The underground pipe gallery ventilation and dehumidification device according to claim 1, characterized in that: The stirring structure comprises a rotating rod (41) and a plurality of stirring rods (42); the rotating rod (41) is rotatably mounted on the back of the fan outer frame (11); one end of the rotating rod (41) extends to the interior of the dehumidification seat (31); and the plurality of stirring rods (42) are fixed to one end of the rotating rod (41) located inside the dehumidification seat (31).

3. The underground pipe gallery ventilation and dehumidification device according to claim 2 is characterized in that: The external structure further comprises a dust screen (23), a first hole (24) and a second hole (25); the dust screen (23) is fixed in a first opening (22) away from the fan outer frame (11); the first hole (24) is provided on a side of the tail seat (21) close to the fan outer frame (11); the second hole (25) is provided on a side of the tail seat (21) away from the fan outer frame (11); the rotating rod (41) passes through the first hole (24), and the rotating rod (41) does not contact the first hole (24).

4. The underground pipe gallery ventilation and dehumidification device according to claim 3 is characterized in that: The drive structure is arranged inside the fan outer frame (11), and comprises a fixed plate (51), a rotating shaft (52), a first eccentric wheel (53), a first gear (54), a second gear (55) and an air supply member. The fixed plate (51) is fixed inside the fan outer frame (11), the rotating shaft (52) is rotatably mounted on the fixed plate (51), the first eccentric wheel (53) is fixedly sleeved on the rotating shaft (52), and the first eccentric wheel (53) and the rotating shaft (52) are eccentrically arranged, the first gear (54) is fixedly sleeved on the output shaft of the fan motor (13), the second gear (55) is fixedly sleeved on the rotating shaft (52), and the first gear (54) and the second gear (55) are fixedly sleeved on the rotating shaft (52). The gears (55) are meshed with each other. The air supply component is arranged inside the fan outer frame (11). The air supply component includes a first sealing cylinder (56), a first sliding plug (57) and a first connecting rod (58). The first sealing cylinder (56) is fixed inside the fan outer frame (11). The first sliding plug (57) is sealingly and slidably connected inside the first sealing cylinder (56). One end of the first connecting rod (58) is fixedly connected to the first sliding plug (57), and the other end extends to the outside of the first sealing cylinder (56). The first connecting rod (58) is arranged opposite to the first eccentric wheel (53). The first sliding plug (57) is connected to the inner surface of the first sealing cylinder (56) via a first spring (59).

5. The underground pipe gallery ventilation and dehumidification device according to claim 4, characterized in that: The transmission structure is arranged on a side of the tailstock (21) close to the fan outer frame (11), and comprises a side plate (61), a second sealing cylinder (62), a second sliding plug (63), a second connecting rod (64), a connecting plate (66), a rack (67) and a third gear (68); the side plate (61) is fixed to a side of the tailstock (21); the second sealing cylinder (62) is fixed to a side of the side plate (61); the second sealing cylinder (62) is connected to the first sealing cylinder (56) via an air guide pipe; the second sliding plug (63) is sealingly and slidably connected to the inside of the second sealing cylinder (62); the second One end of the connecting rod (64) is fixedly connected to the second sliding plug (63), and the other end extends to the outside of the second sealing cylinder (62). The second sliding plug (63) is connected to the inner surface of the second sealing cylinder (62) via a second spring (65). One end of the connecting rod is fixed to an end of the second connecting rod (64) located outside the second sealing cylinder (62), and the other end is fixedly connected to the rack (67). The third gear (68) is rotatably assembled on an end of the rotating rod (41) located outside the tailstock (21) via a one-way bearing (69), and the rack (67) and the third gear (68) are meshed with each other.

6. The underground pipe gallery ventilation and dehumidification device according to claim 5, characterized in that: The turning unit comprises a driving motor (71), a rotating rod (72), a fourth gear (73) and a fifth gear (74); the driving motor (71) is mounted on a side of the tailstock (21); the rotating rod (72) passes through the second hole (25) and is rotatably mounted in the second hole (25); one end of the rotating rod (72) located inside the tailstock (21) is fixedly connected to the dehumidifying seat (31), and the rotating rod (72) and the dehumidifying seat (31) are coaxially arranged; the fourth gear (73) is fixedly sleeved on the rotating rod (72); the fifth gear (74) is fixedly sleeved on the output shaft of the driving motor (71), and the fourth gear (73) and the fifth gear (74) are meshed with each other.

7. The underground pipe gallery ventilation and dehumidification device according to claim 6, characterized in that: The cleaning structure comprises a cleaning plate (81), bristles (82) and a cleaning comb (83); the cleaning plate (81) is fixedly sleeved on the rotating rod (72); the bristles (82) are arranged on the cleaning plate (81); the cleaning comb (83) is fixed on the side of the tailstock (21); a plurality of comb teeth are arranged on the cleaning comb (83); tooth grooves (84) are formed between two adjacent comb teeth; each tooth groove (84) is located on the rotation path of the bristles (82).

8. The underground pipe gallery ventilation and dehumidification device according to claim 7, characterized in that: The dust collection structure comprises a dust suction pipe (91), a second eccentric wheel (93), a third sealing cylinder (94), a third sliding plug (95), a third connecting rod (96), two mounting tubes (98), two one-way valves (99) and a dust collecting box (910); the third sealing cylinder (94) is fixed to the side of the tailstock (21) via two connecting rods; the dust suction pipe (91) is fixed to the third sealing cylinder (94); a plurality of dust suction holes (92) are provided on the dust suction pipe (91); each of the dust suction holes (92) is arranged toward the cleaning comb (83); the second eccentric wheel (93) is fixedly sleeved on the rotating rod (72); the third sliding plug (95) is sealingly and slidably connected to the inside of the third sealing cylinder (94); one end of the third connecting rod (96) is The third connecting rod (96) is arranged opposite to the second eccentric wheel (93). The third connecting rod (96) is arranged opposite to the second eccentric wheel (93). The third connecting rod (96) is connected to the inner surface of the third sealing cylinder (94) via a third spring (97). The two mounting tubes (98) are both connected to the third sealing cylinder (94). The two one-way valves (99) are respectively mounted on the two mounting tubes (98). The dust collecting box (910) is arranged on the side of the tailstock (21). One end of one of the mounting tubes (98) away from the third sealing cylinder (94) is connected to the dust collecting tube (91), and the other end of the mounting tube (98) away from the third sealing cylinder (94) is connected to the dust collecting box (910).

9. The underground pipe gallery ventilation and dehumidification device according to claim 8, characterized in that: The fan unit further comprises a rotating seat (14) and a plurality of axial flow blades (15); the rotating seat (14) is fixed on the output shaft of the fan motor (13); the plurality of axial flow blades (15) are fixed on the rotating seat (14); a tail cover (26) is fixed on the side of the tail seat (21) facing away from the fan outer frame (11); a mounting opening (27) is provided on the tail cover (26) and is arranged opposite to the first opening (22); the flip unit and the dust cleaning unit are both located inside the tail cover (26); and a partition net (33) is fixed inside each of the two second openings (32).

10. An underground pipe gallery, characterized in that: Several underground pipe gallery ventilation and dehumidification devices as described in any one of claims 1 to 9 are arranged inside the underground pipe gallery.

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