CN111594472A - Tunnel ventilation system - Google Patents

Abstract

The invention relates to the technical field of ventilation equipment. Disclosed is a ventilation system for tunnels, which includes a box body with openings on both sides. The box body is provided with an exhaust fan, a dust removal mechanism, and a filter layer in sequence from left to right. The dust removal mechanism includes a groove seat fixed on the inner wall of the box, and the groove seat The pipeline that is slidingly connected, the lifting block that is slidingly connected to the outside of the pipeline, the power part that drives the vertical reciprocating movement of the lifting block, and the movable door that opens and closes with the vertical movement of the lifting block. A ring groove for dust on the outer wall, the movable door is located between the exhaust fan and the groove seat; the side wall of the box body is provided with a side port and a sealing plate for sealing the side port, and the sealing plate and the side port are detachably connected. The solution mainly solves the problem that the existing ventilation device cannot deal with the dust in the air in the tunnel, which causes the discharged air to pollute the nature.

Description

Tunnel ventilation system

technical field

The invention relates to the technical field of ventilation equipment.

Background technique

Tunnels are engineering structures buried in the ground, and it is a form of human utilization of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mine tunnels, and military tunnels.

At present, the tunnels continue to extend to the mountainous and hilly areas, and the number and scale of the tunnels continue to increase; during the tunnel construction process, ventilation devices are usually used to ventilate the interior of the tunnels, mainly to remove dust in the air, and then Improve the air quality inside the tunnel to ensure that the construction personnel can work normally; in the actual use process, the existing ventilation device is relatively simple, and can only discharge the air inside the tunnel, but cannot deal with the dust in the air. The air pollutes nature.

SUMMARY OF THE INVENTION

The present invention is intended to provide a ventilation system for tunnels, so as to solve the problem that the existing ventilation devices cannot handle the dust in the air in the tunnel, and the discharged air pollutes the nature.

In order to achieve the above purpose, the basic scheme of the present invention is as follows: a ventilation system for tunnels, including a box body with openings on both sides, the box body is provided with an exhaust fan, a dust removal mechanism, and a filter layer in sequence from left to right, and the dust removal mechanism It includes a groove seat fixed on the inner wall of the box, a pipe slidably connected to the groove seat, a lifting block slidingly connected to the outside of the pipe, a power part that drives the vertical reciprocating movement of the lifting block, and an activity that opens and closes with the vertical movement of the lifting block Door, the groove seat is provided with a ring groove for collecting the lifting block to scrape the dust on the outer wall of the pipeline, the movable door is located between the exhaust fan and the groove seat; the side wall of the box body is provided with a side port and is used for A sealing plate for sealing the side port, and the sealing plate and the side port are detachably connected.

Advantages of the basic plan:

1. In this scheme, the exhaust fan and motor are started. The exhaust fan draws the air in the tunnel into the box, and the air flows to the right through the air inlet. The air flow can be divided through the pipe, and part of the dust in the air can be adhered to the pipe. On the outer wall of the filter, the airflow continues to move to the right, and the remaining dust in the air can be filtered through the filter layer, so that the air passing through the filter layer is purer. It naturally causes pollution and protects the environment; in addition, by pulling out the dusty air and discharging it out of the tunnel, fresh air is allowed to enter the tunnel, and the air quality of the working environment of the construction workers is improved.

2. This scheme can realize the vertical reciprocating movement of the lifting block through the power part, and then scrape the dust on the outer wall of the pipeline through the lifting block and push it into the ring groove for collection; in addition, it can also add clean water in the ring groove to improve the efficiency of the pipeline. Dust collection effect.

3. This scheme can also drive the opening and closing of the movable door through the vertical movement of the lifting block. When the movable door is opened, the air in the tunnel can be introduced into the pipeline; Avoid dust flying and improve dust collection effect.

4. The side wall of this scheme is provided with a side port and a sealing plate for sealing the side port, which is convenient for cleaning and processing the dust in the outer wall of the pipe and the ring groove.

Further, the power part includes a first rotating shaft, a second rotating shaft on the rotatable connection box, and a motor fixed on the inner wall of the box, the first rotating shaft and the second rotating shaft are respectively rotatably connected with the filter layer; the pipeline is located at Between the first rotating shaft and the second rotating shaft, the pipes are respectively arranged perpendicular to the first rotating shaft and the second rotating shaft; a torsion spring is arranged between the first rotating shaft and the box body, and a torsion spring is fixed on the first rotating shaft. The first steel wire rope on the first rotating shaft, and the first steel wire rope is fixed with the top of the lifting block; the second rotating shaft is fixed with a first gear and a second steel wire rope wound on the second rotating shaft, and the second steel wire rope is connected to the second rotating shaft. The bottom of the lifting block is detachably connected; the height of the pipe is smaller than the distance between the slot seat and the first rotating shaft; the output shaft of the motor is fixedly connected with a sector gear that meshes with the first gear.

Through the above arrangement, the output shaft of the motor drives the fan gear to rotate, so that the fan gear meshes with the first gear intermittently; when the fan gear meshes with the first gear, the first gear rotates counterclockwise, which in turn drives the second shaft to rotate counterclockwise; The rotation of the two rotating shafts makes the second wire rope wound on the second rotating shaft, and then the second wire rope pulls the lifting block to move down, and at the same time, the lifting block pulls the first wire rope to move downward. The first rotating shaft is driven to rotate counterclockwise, and the torsion spring is deformed.

When the fan gear does not mesh with the first gear, the force of the first rotating shaft on the torsion spring disappears; the torsion spring drives the first rotating shaft to rotate clockwise, the first wire rope is wound on the first rotating shaft, and the first wire rope drives the lifting block upward Moving, the lifting block also moves upward on the second wire rope. Since the second wire rope is wound on the second rotating shaft, the second rotating shaft rotates clockwise, so as to realize the reset of the second rotating shaft and wait for the next work.

Further, both sides of the lifting block are provided with hanging loops, and the free end of the second wire rope is provided with a hook.

Through the above arrangement, the hook is hung on the hanging ring, so as to realize the connection between the lifting block and the second wire rope, and the structure is simple and practical.

Further, the bottom of the lifting block is provided with a bottom groove, and the width of the bottom groove is gradually expanded from top to bottom; the bottom of the lifting block is gap-fitted with the ring groove.

Through the above arrangement, the bottom groove can temporarily collect and collect dust, thereby preventing the dust from being raised.

Further, the inner wall of the ring groove is provided with a sponge block for extending into the bottom groove, and the sponge block is located on the movement track of the bottom of the lifting block.

Through the above arrangement, clean water in the ring groove, and the sponge block is in contact with the clean water, so that the sponge block has moisture; the bottom of the lifting block extends into the ring groove, and the sponge block is used to clean the dust in the bottom groove and collect the dust into the ring groove In addition, since the sponge block has moisture, the bottom of the lifting block is stained with moisture through the contact between the sponge block and the bottom of the lifting block; when the lifting block moves upward, the moisture can be adhered to the outer wall of the pipe, thereby making more dust It adheres to the outer wall of the pipe, thereby enhancing the dust collection effect.

Further, a water tank and a sponge layer are arranged in the pipeline, and the water tank is located above the sponge layer; the top of the water tank is provided with a top port and a sealing cover for sealing the top port, and the sealing cover and the top port are detachable connection; the top of the sponge layer is provided with a cotton rope, and the cotton rope extends into the water tank through the sealing cover; the pipe is provided with a number of through holes, the sponge layer is provided with a number of sponge protrusions, and the sponge The protrusion is in contact with the inner wall of the through hole, and the free end of the sponge protrusion is flush with the outer wall of the pipe.

Through the above arrangement, remove the sealing cover from the top opening, add a sufficient amount of water to the water tank, and then connect the sealing cover and the opening, so that the cotton rope extends into the water in the water tank; because the cotton rope is connected with the sponge layer, the sponge layer is Keeping moisture at all times, the sponge layer transfers moisture to the sponge protrusions so that the sponge protrusions also have moisture.

Since the sponge protrusions have moisture, the dust on the sponge protrusions also has moisture. Therefore, when the lifting block scrapes the dust on the outer wall of the pipe, the dust with moisture and ordinary dust can be collected to avoid dust flying.

Further, the movable door includes a partition plate and a fixed block fixed in the box, the partition plate is provided with an air inlet, and the first rotating shaft and the second rotating shaft are both rotatably connected with the partition plate; A vertical slot is arranged on the top, and a rack is slidably connected in the vertical slot, a spring is arranged between the rack and the vertical slot, and a baffle for sealing the air inlet is arranged on the top of the rack; A second gear meshed with the rack is fixedly connected to the second rotating shaft.

Through the above arrangement, the second shaft drives the second gear to rotate counterclockwise, the second gear drives the rack to move upward, the rack drives the baffle to move upward, and the spring stretches; The scraping effect of dust on the outer wall of the pipe.

Further, the width of the air inlet gradually decreases from left to right.

Through the above arrangement, the amount of air entering the right side of the partition plate is increased through the air inlet, so as to speed up the dust removal efficiency of the air.

Further, the box body includes a front box section and a rear box section, the front box section and the rear box section are detachably connected, and the exhaust fan is located in the front box section.

Through the above arrangement, after the front box section and the rear box section are separated, it is convenient to clean them separately, which is convenient for better use next time.

Further, both the sealing cover and the sealing plate are provided with handles.

Through the above arrangement, the handle is used to pick up the sealing cover and the sealing plate, so the design is more user-friendly and the operation is more convenient.

Description of drawings

1 is a front view of the first embodiment of the ventilation system for tunnels according to the present invention

Fig. 2 is the sectional view of Fig. 1;

Figure 3 is a cross-sectional view of the pipe being placed in the slot seat.

Detailed ways

The following is further described in detail by specific embodiments:

Reference numerals in the accompanying drawings include: box body 1, exhaust fan 2, filter layer 3, groove base 4, pipeline 5, lifting block 6, ring groove 7, sealing plate 8, first rotating shaft 9, second rotating shaft 10 , motor 11, first wire rope 12, first gear 13, second wire rope 14, sector gear 15, hanging ring 16, bottom groove 17, sponge block 18, water tank 19, cotton rope 20, sponge protrusion 21, partition 22 , Fixed block 23 , air inlet 24 , rack 25 , spring 26 , baffle 27 , second gear 28 .

Example 1

Basically as shown in Figure 1, Figure 2 and Figure 3: a ventilation system for tunnels, including a box body 1 with openings on both sides, the box body 1 is sequentially provided with an exhaust fan 2, a dust removal mechanism, a filter from left to right Layer 3, the exhaust fan 2 is fixed on the inner wall of the box body 1 by bolts, and the filter layer 3 is fixed on the inner wall of the box body 1 by bolts. A filter screen is fixedly connected to the left end of the box body 1 .

The dust removal mechanism includes a groove seat 4 fixed on the inner wall of the box body 1, a pipe 5 slidably connected to the groove seat 4, a lifting block 6 slidably connected to the outside of the pipe 5, a power part that drives the vertical reciprocating movement of the lifting block 6, and a lifting block 6. The movable door that the block 6 moves vertically and is opened and closed, the top of the groove seat 4 is provided with a ring groove 7 for collecting the lifting block 6 to scrape the dust on the outer wall of the pipe 5, and the movable door is located between the exhaust fan 2 and the groove seat 4; The side wall of 1 is provided with a side port and a sealing plate 8 for sealing the side port, and the sealing plate 8 is clamped with the side port.

The power part includes a first rotating shaft 9, a second rotating shaft 10 and a motor 11 fixed on the inner wall of the casing 1, and the first rotating shaft 9 and the second rotating shaft 10 are respectively connected with the filter layer 3 in rotation; the pipeline 5 It is located between the first rotating shaft 9 and the second rotating shaft 10, and the pipe 5 is arranged vertically with the first rotating shaft 9 and the second rotating shaft 10 respectively; a torsion spring is fixed between the first rotating shaft 9 and the box 1, and the first rotating shaft 9 A first wire rope 12 wound on the first rotating shaft 9 is fixedly connected to it. The number of the first steel wire rope 12 is two, and the first steel wire rope 12 is fixed to the top of the lifting block 6; A gear 13 and a second wire rope 14 wound on the second rotating shaft 10, the number of the second wire rope 14 is two, and the second wire rope 14 is detachably connected to the bottom of the lifting block 6; in this embodiment, the lifting block 6 Both sides of the wire rope 14 are fixed with hanging loops 16, and the free end of the second wire rope 14 is connected with a hook. The height of the pipe 5 is smaller than the distance between the slot seat 4 and the first rotating shaft 9 ;

The bottom of the lifting block 6 is provided with a bottom groove 17, and the width of the bottom groove 17 gradually expands from top to bottom; the inner wall of the ring groove 7 is bonded with a sponge block 18 for extending into the bottom groove 17, and the sponge block 18 is located in the lifting block. The bottom of the lifting block 6 is in clearance fit with the ring groove 7, that is, the bottom of the lifting block 6 can extend into the ring groove 7, so that the inner wall of the bottom groove 17 is in contact with the sponge block 18.

A water tank 19 and a sponge layer are arranged in the pipeline 5, the water tank 19 is located above the sponge layer, the water tank 19 is fixed on the pipeline 5 by bolts, and the sponge layer is bonded on the inner wall of the pipeline 5; The sealing cover that seals the top opening, and the sealing cover is threadedly connected to the top opening; the top of the sponge layer is connected with a cotton rope 20, and the cotton rope 20 extends through the sealing cover into the water tank 19; a number of through holes are opened on the pipe 5, and the sponge layer A plurality of sponge protrusions 21 are integrally formed on the upper part, the sponge protrusions 21 are in contact with the inner wall of the through hole, and the free end of the sponge protrusion 21 is flush with the outer wall of the pipe 5 .

The movable door includes a partition plate 22 and a fixed block 23 fixed in the box body 1, and the partition plate 22 and the fixed plate are both fixed on the inner wall of the box body 1 by bolts; the partition plate 22 is provided with an air inlet 24, and the air inlet The width of 24 gradually decreases from left to right; the left end of the first rotating shaft 9 and the left end of the second rotating shaft 10 are both rotatably connected with the partition plate 22; the top of the fixing block 23 is provided with a vertical groove, and the vertical groove is slidably connected There is a rack 25, a spring 26 is fixed between the rack 25 and the vertical groove, the top of the rack 25 is fixed with a baffle 27 for sealing the air inlet 24 by bolts, and the baffle 27 is attached to the partition 22; A second gear 28 meshing with the rack 25 is fixed on the second rotating shaft 10 .

The specific implementation process is as follows:

Put the box 1 on the existing cart, and then push the cart into the tunnel, so that the box 1 is located in the tunnel; remove the sealing cover from the top opening, add enough water to the water tank 19, and then Connect the sealing cover and the opening, so that the cotton rope 20 extends into the water of the water tank 19; because the cotton rope 20 is connected with the sponge layer, the cotton rope 20 can transfer moisture to the sponge layer, so that the sponge layer always retains moisture, and the sponge layer transmits moisture The sponge protrusions 21 are given so that the sponge protrusions 21 also have moisture. Remove the sealing plate 8 from the side port, put the pipe 5 into the groove seat 4, and limit the position of the pipe 5 through the groove seat 4; put the lifting block 6 on the outer wall of the pipe 5, so that the lifting block 6 can be The pipe 5 slides vertically; the hook is hung on the hanging ring 16, so as to realize the connection between the lifting block 6 and the second wire rope 14, and the second wire rope 14 is in a straight state at this time; add a sufficient amount of water, so that the water surface is located at the sponge block 18, the sponge block 18 is in contact with the water surface, and the sponge block 18 has moisture. At this time, the water tank 19 and the ring groove 7 are in a vertical state with the ground, and the water will not be poured out. Finally, connect the sealing plate 8 to the side port.

Start the exhaust fan 2, the exhaust fan 2 draws the air in the tunnel into the box 1, and the large air debris can be isolated through the filter screen to prevent the debris from entering the box 1 and causing damage. The air flows to the right through the air inlet 24, and the air flow can be divided through the duct 5, and part of the dust in the air can also be adhered to the outer wall of the duct 5, and the air flow continues to move to the right. The remaining dust is filtered, so that the air passing through the filter layer 3 is purer, and the discharged air will not pollute the nature; and, because the sponge protrusions 21 have moisture, the dust on the sponge protrusions 21 adheres well. More.

The motor 11 is started, and the output shaft of the motor 11 drives the fan gear 15 to rotate, so that the fan gear 15 intermittently meshes with the first gear 13; when the fan gear 15 meshes with the first gear 13, the first gear 13 rotates counterclockwise, thereby driving the first gear 13. The second rotating shaft 10 rotates counterclockwise; the second rotating shaft 10 drives the second gear 28 to rotate counterclockwise, the second gear 28 drives the rack 25 to move upward, the rack 25 drives the baffle 27 to move upward, and the spring 26 stretches; The air inlet 24 is sealed.

The second rotating shaft 10 rotates so that the second wire rope 14 is wound on the second rotating shaft 10, and then the second wire rope 14 pulls the lifting block 6 to move downward, and at the same time, the lifting block 6 pulls the first wire rope 12 to move downward. 12 is wound on the first rotating shaft 9, and then drives the first rotating shaft 9 to rotate counterclockwise, and the torsion spring is deformed; during the downward movement of the lifting block 6, the lifting block 6 is used to scrape the dust on the outer wall of the pipe 5 and drive the dust to move to the ring. Since the bottom of the lifting block 6 is provided with a bottom groove 17, the bottom groove 17 can temporarily collect and collect dust, thereby preventing the dust from rising; the bottom of the lifting block 6 extends into the ring groove 7, and the use of The sponge block 18 cleans the dust in the bottom groove 17 and collects the dust in the ring groove 7; and because the sponge block 18 has moisture, the sponge block 18 contacts the bottom of the lifting block 6, so that the bottom of the lifting block 6 is stained. Moisture.

In addition, since the sponge protrusions 21 have moisture, the dust on the sponge protrusions 21 also has moisture. Therefore, when the lifting block 6 scrapes off the dust on the outer wall of the pipe 5, the dust with moisture and ordinary dust can be collected, which can be further avoided. In addition, due to the shielding of the air inlet 24 by the baffle 27, the right side of the partition 22 in the duct 5 does not have air flow, thereby avoiding the flying of dust on the outer wall of the duct 5.

When the sector gear 15 does not mesh with the first gear 13, the force of the second gear 28 on the rack 25 disappears, and the force of the first shaft 9 on the torsion spring disappears; the rack 25 moves downward under the action of the spring 26 , and then drive the baffle 27 to move downward, so that the air inlet 24 communicates with the interior of the pipe 5, and can also drive the second gear 28 to rotate clockwise; at the same time, the torsion spring drives the first shaft 9 to rotate clockwise, and the first wire rope 12 is wound. On the first rotating shaft 9, the first wire rope 12 drives the lifting block 6 to move upward, and the lifting block 6 also moves upward on the second wire rope 14. Since the second wire rope 14 is wound on the second rotating shaft 10, the second rotating shaft 10 moves along the Clockwise rotate to realize the reset of the second rotating shaft 10 and wait for the next work; during the upward movement of the lifting block 6, since the bottom of the lifting block 6 contains moisture, the lifting block 6 adheres the moisture to the outer wall of the pipe 5 , thereby facilitating the adhesion of dust on the outer wall of the pipe 5 .

Using the above method, a large amount of dust can be collected into the ring groove 7; after use, the sealing plate 8 is removed from the side port, and then separated and hooked on the hanging ring 16, so that the second wire rope 14 is separated from the lifting block 6; Remove the lifting block 6 from the outer wall of the pipe 5, then take the pipe 5 out of the groove base 4, clean the pipe 5, and remove the sewage in the ring groove 7, which is convenient for the next use.

Embodiment 2

The structure and implementation of the second embodiment are basically the same as those of the first embodiment, and the difference lies in that: the box body 1 includes a front box section and a rear box section, and the front box section and the rear box section are detachably connected. The box section and the rear box section are connected together by bolts, the threaded connection structure is convenient for installation and disassembly, and the threaded connection structure is self-locking, thereby improving the stability of the connection between the front box section and the rear box section; After being separated from the rear box section, it is convenient to clean separately, which is convenient for better use next time. The exhaust fan 2 is located in the front box section.

A handle is integrally formed on the sealing cover and the sealing plate 8; the handle is used to take the sealing cover and the sealing plate 8, which is more user-friendly in design and more convenient in operation.

The above descriptions are only examples of the present invention, and common knowledge such as well-known specific structures and/or characteristics in the solutions are not described too much here. It should be pointed out that for those skilled in the art, some modifications and improvements can be made without departing from the structure of the present invention. These should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effectiveness and utility of patents. The scope of protection claimed in this application shall be based on the content of the claims, and the descriptions of the specific implementation manners in the description can be used to interpret the content of the claims.

Claims (10)

1. The ventilation system for tunnels is characterized in that: it includes a box body with openings on both sides, and the box body is sequentially provided with an exhaust fan, a dust removal mechanism, and a filter layer from left to right. The groove seat on the inner wall, the pipeline slidably connected to the groove seat, the lifting block slidably connected to the outside of the pipeline, the power part that drives the vertical reciprocating movement of the lifting block, and the movable door that opens and closes with the vertical movement of the lifting block. There is a ring groove for collecting the lifting block to scrape the dust on the outer wall of the pipe, the movable door is located between the exhaust fan and the groove seat; the side wall of the box is provided with a side port and a sealing plate for sealing the side port , and the sealing plate is detachably connected with the side port. 2 . The ventilation system for tunnels according to claim 1 , wherein the power part comprises a first rotating shaft, a second rotating shaft rotatably connected to the box body, and a motor fixed on the inner wall of the box body, and the first A rotating shaft and a second rotating shaft are respectively rotatably connected with the filter layer; the pipe is located between the first rotating shaft and the second rotating shaft, and the pipe is perpendicular to the first rotating shaft and the second rotating shaft respectively; the first rotating shaft and the box body There is a torsion spring in between, the first rotating shaft is fixed with a first wire rope wound on the first rotating shaft, and the first wire rope is fixed with the top of the lifting block; the second rotating shaft is fixed with a first gear and the second wire rope wound on the second rotating shaft, and the second wire rope is detachably connected to the bottom of the lifting block; the height of the pipe is less than the distance between the slot seat and the first rotating shaft; the output shaft of the motor is fixed with a The first gear meshes with the sector gear. 3 . The ventilation system for tunnels according to claim 2 , wherein hanging rings are provided on both sides of the lifting block, and hooks are provided at the free end of the second wire rope. 4 . 4. The ventilation system for tunnels according to claim 3, characterized in that: the bottom of the lifting block is provided with a bottom groove, and the width of the bottom groove is gradually enlarged from top to bottom; the bottom of the lifting block and the ring Slot clearance fit. 5 . The ventilation system for tunnels according to claim 4 , wherein the inner wall of the annular groove is provided with a sponge block for extending into the bottom groove, and the sponge block is located on the movement track of the bottom of the lifting block. 6 . 6. The ventilation system for tunnels according to claim 5, characterized in that: a water tank and a sponge layer are arranged in the pipeline, and the water tank is located above the sponge layer; A sealing cover for sealing the top opening, the sealing cover and the top opening are detachably connected; a cotton rope is arranged on the top of the sponge layer, and the cotton rope extends into the water tank through the sealing cover; The sponge layer is provided with a plurality of sponge protrusions, the sponge protrusions are in contact with the inner wall of the through hole, and the free ends of the sponge protrusions are flush with the outer wall of the pipe. 7 . The ventilation system for tunnels according to claim 6 , wherein the movable door comprises a partition plate and a fixed block fixed in the box, the partition plate is provided with an air inlet, and the first The rotating shaft and the second rotating shaft are both rotatably connected with the partition; the top of the fixing block is provided with a vertical groove, and a rack is slidably connected in the vertical groove, and a spring is arranged between the rack and the vertical groove, so The top of the rack is provided with a baffle plate for sealing the air inlet; the second rotating shaft is fixedly connected with a second gear that meshes with the rack. 8 . The ventilation system for a tunnel according to claim 7 , wherein the width of the air inlet gradually decreases from left to right. 9 . 9. The ventilation system for tunnels according to claim 8, wherein the box body comprises a front box section and a rear box section, the front box section and the rear box section are detachably connected, and the exhaust fan is located in the Inside the front box section. 10 . The ventilation system for tunnels according to claim 9 , wherein the sealing cover and the sealing plate are provided with handles. 11 .

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