CN111594472A - Ventilation system for tunnel - Google Patents
Ventilation system for tunnel Download PDFInfo
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- CN111594472A CN111594472A CN202010476208.6A CN202010476208A CN111594472A CN 111594472 A CN111594472 A CN 111594472A CN 202010476208 A CN202010476208 A CN 202010476208A CN 111594472 A CN111594472 A CN 111594472A
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- rotating shaft
- lifting block
- pipeline
- box body
- groove
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- 238000009423 ventilation Methods 0.000 title claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 56
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000005192 partition Methods 0.000 claims description 13
- 229920000742 Cotton Polymers 0.000 claims description 10
- 238000003915 air pollution Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/705—Adding liquids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ventilation (AREA)
Abstract
The invention relates to the technical field of ventilation equipment. The air exchange system for the tunnel comprises a box body with openings at two sides, wherein an exhaust fan, a dust removal mechanism and a filter layer are sequentially arranged in the box body from left to right, the dust removal mechanism comprises a groove seat fixedly connected to the inner wall of the box body, a pipeline in sliding connection with the groove seat, a lifting block in sliding connection with the outside of the pipeline, a power part driving the lifting block to vertically reciprocate and a movable door which is opened and closed along with the vertical movement of the lifting block, an annular groove used for collecting dust on the outer wall of the pipeline scraped by the lifting block is arranged on the groove seat, and the movable door is positioned between the exhaust fan and the; the side wall of the box body is provided with a side opening and a sealing plate used for sealing the side opening, and the sealing plate is detachably connected with the side opening. This scheme has mainly solved current breather and can not handle the dust in the air in the tunnel, leads to the problem of exhaust air pollution nature.
Description
Technical Field
The invention relates to the technical field of ventilation equipment.
Background
Tunnels are engineering structures buried in the ground and are a form of human use of underground space. The tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel and a military tunnel.
At present, a tunnel continuously extends to a mountainous heavy hill area, and the number and scale of the tunnel are continuously increased; in the process of tunnel construction, a ventilation device is usually used for ventilating the interior of a tunnel, so that dust in air is mainly removed, the air quality in the tunnel is further improved, and normal construction of constructors is guaranteed; in the actual use process, the existing ventilation device is simple, only air in the tunnel can be discharged, and dust in the air cannot be treated, so that the discharged air can pollute the nature.
Disclosure of Invention
The invention aims to provide a ventilation system for a tunnel, which aims to solve the problem that the discharged air pollutes the nature because the conventional ventilation device cannot treat dust in the air in the tunnel.
In order to achieve the above object, the basic scheme of the invention is as follows: the tunnel ventilation system comprises a box body with openings at two sides, wherein an exhaust fan, a dust removal mechanism and a filter layer are sequentially arranged in the box body from left to right, the dust removal mechanism comprises a groove seat fixedly connected to the inner wall of the box body, a pipeline in sliding connection with the groove seat, a lifting block in sliding connection with the outside of the pipeline, a power part for driving the lifting block to vertically reciprocate and a movable door which is opened and closed along with the vertical movement of the lifting block, an annular groove for collecting dust on the outer wall of the pipeline scraped by the lifting block is arranged on the groove seat, and the movable door is positioned between the exhaust fan and the groove seat; the side wall of the box body is provided with a side opening and a sealing plate used for sealing the side opening, and the sealing plate is detachably connected with the side opening.
The advantages of the basic scheme are:
1. according to the scheme, the exhaust fan and the motor are started, the exhaust fan sucks air in the tunnel into the box body, the air flows rightwards through the air inlet, the air flow can be divided through the pipeline, part of dust in the air can be adhered to the outer wall of the pipeline, the air flow continues to move rightwards, and the rest dust in the air can be filtered through the filter layer, so that the air passing through the filter layer is purer, compared with the prior art, the air exhausted by the scheme cannot pollute the nature, and the environment is protected; and, through taking out the air that has the dust and leaving and discharging the tunnel for fresh air gets into in the tunnel, improves constructor operational environment's air quality.
2. According to the scheme, the vertical reciprocating movement of the lifting block can be realized through the power part, so that dust on the outer wall of the pipeline is scraped through the lifting block and pushed into the annular groove for collection; in addition, clear water can be added into the annular groove, so that the dust collecting effect is improved.
3. According to the scheme, the lifting block can also drive the movable door to open and close through vertical movement, and when the movable door is opened, air in the tunnel can be introduced into the pipeline; when the movable door is closed, the lifting block can move vertically to scrape off dust, so that the dust is prevented from flying, and the dust collecting effect is improved.
4. This scheme lateral wall is provided with the side mouth and is used for the closing plate of sealed side mouth, makes things convenient for the dust in clean processing pipeline outer wall and the annular.
Further, the power part comprises a first rotating shaft and a second rotating shaft which are rotatably connected with the box body and a motor fixedly connected to the inner wall of the box body, and the first rotating shaft and the second rotating shaft are respectively and rotatably connected with the filter layer; the pipeline is positioned between the first rotating shaft and the second rotating shaft and is respectively and vertically arranged with the first rotating shaft and the second rotating shaft; a torsion spring is arranged between the first rotating shaft and the box body, a first steel wire rope wound on the first rotating shaft is fixedly connected to the first rotating shaft, and the first steel wire rope is fixedly connected with the top of the lifting block; the first gear and a second steel wire rope wound on the second rotating shaft are fixedly connected to the second rotating shaft, and the second steel wire rope is detachably connected with the bottom of the lifting block; the height of the pipeline is smaller than the distance between the groove seat and the first rotating shaft; and the output shaft of the motor is fixedly connected with a sector gear meshed with the first gear.
Through the arrangement, the output shaft of the motor drives the sector gear to rotate, so that the sector gear is intermittently meshed with the first gear; when the sector gear is meshed with the first gear, the first gear rotates anticlockwise so as to drive the second rotating shaft to rotate anticlockwise; the second pivot rotates and makes the winding of second wire rope in the second pivot, and then through second wire rope pulling elevator downstream, simultaneously, the first wire rope of elevator pulling downstream, because first wire rope winding is in first pivot, and then drives first pivot anticlockwise rotation, the deformation takes place for the torsional spring.
When the sector gear is not meshed with the first gear, the acting force of the first rotating shaft on the torsion spring disappears; the torsional spring drives the first rotating shaft to rotate clockwise, the first steel wire rope is wound on the first rotating shaft, the lifting block is driven to move upwards through the first steel wire rope, the lifting block also moves upwards at the second steel wire rope, and the second rotating shaft rotates clockwise due to the fact that the second steel wire rope is wound on the second rotating shaft, so that the second rotating shaft is reset, and next work is waited.
Furthermore, hanging rings are arranged on two sides of the lifting block, and a hook is arranged at the free end of the second steel wire rope.
Through the arrangement, the hook is hung on the hanging ring, so that the connection between the lifting block and the second steel wire rope is realized, 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 enlarged from top to bottom; the bottom of the lifting block is in clearance fit with the annular groove.
Through the arrangement, the bottom groove can play a role in temporarily collecting and collecting dust, so that the dust is prevented from being raised outwards.
Further, be equipped with the sponge piece that is used for stretching into the kerve on the inner wall of annular, and the sponge piece is located the movement track of elevator bottom.
Through the arrangement, clear water is filled in the annular groove, and the sponge block is contacted with the clear water, so that the sponge block has moisture; the bottom of the lifting block extends into the annular groove, and the sponge block is used for cleaning dust in the bottom groove and collecting the dust into the annular groove; moreover, because the sponge block has moisture, the bottom of the lifting block is stained with the moisture through the contact of the sponge block and the bottom of the lifting block; when going up and down to move upwards, can be with moisture adhesion on the outer wall of pipeline, and then let on the outer wall of the more adhesion pipeline of dust, and then strengthen the collection effect to the dust.
Further, a water tank and a sponge layer are arranged in the pipeline, and the water tank is positioned above the sponge layer; the top of the water tank is provided with a top opening and a sealing cover for sealing the top opening, and the sealing cover is detachably connected with the top opening; a cotton rope is arranged at the top of the sponge layer and penetrates through the sealing cover to extend into the water tank; the pipeline is provided with a plurality of through holes, the sponge layer is provided with a plurality of sponge protrusions, the sponge protrusions are attached to the inner walls of the through holes, and the free ends of the sponge protrusions are flush with the outer wall of the pipeline.
Through the arrangement, the sealing cover is taken down from the top opening, sufficient water is added into the water tank, and then the sealing cover and the opening are connected, so that the cotton rope extends into the water in the water tank; because the cotton rope is connected with the sponge layer for the sponge layer remains moisture throughout, and the sponge layer transmits moisture to the sponge arch, makes the sponge arch also have moisture.
Because the sponge bulge has moisture, the dust on the sponge bulge also has moisture, so when the lifting block scrapes off the dust on the outer wall of the pipeline, the dust with the moisture is converged with the common dust, and the flying of the dust can be avoided.
Further, the movable door comprises a partition plate and a fixed block which are fixedly connected in the box body, 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; the top of the fixed block is provided with a vertical groove, a rack is connected in the vertical groove in a sliding mode, a spring is arranged between the rack and the vertical groove, and the top of the rack is provided with a baffle plate used for sealing the air inlet; and a second gear meshed with the rack is fixedly connected to the second rotating shaft.
Through the arrangement, the second rotating shaft drives the second gear to rotate anticlockwise, the second gear drives the rack to move upwards, the rack drives the baffle to move upwards, and the spring is stretched; the air inlet is sealed through the baffle, and then the scraping effect of the lifting block on dust on the outer wall of the pipeline is guaranteed.
Further, the width of the air inlet is gradually reduced from left to right.
Through the arrangement, the air quantity entering the right side of the partition plate is increased through the air inlet, and the dust removing efficiency of the air is improved.
Further, the box includes front box section and back box section, front box section can dismantle with the back box section and be connected, the air exhauster is located the front box section.
Through the arrangement, after the front box section and the rear box section are split, the front box section and the rear box section are convenient to clean respectively, and the next better use is facilitated.
Further, handles are arranged on the sealing cover and the sealing plate.
Through the arrangement, the sealing cover and the sealing plate are taken by the handle, so that the design is more humanized, and the operation is more convenient.
Drawings
FIG. 1 is a front view of a ventilation system for tunnel according to a first embodiment of the present invention
FIG. 2 is a cross-sectional view of FIG. 1;
figure 3 is a cross-sectional view of a pipe placed in a bowl.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a box body 1, an exhaust fan 2, a filter layer 3, a groove seat 4, a pipeline 5, a lifting block 6, a ring groove 7, a sealing plate 8, a first rotating shaft 9, a second rotating shaft 10, a motor 11, a first steel wire rope 12, a first gear 13, a second steel wire rope 14, a sector gear 15, a hanging ring 16, a bottom groove 17, a sponge block 18, a water tank 19, a cotton rope 20, a sponge bulge 21, a partition plate 22, a fixing block 23, an air inlet 24, a rack 25, a spring 26, a baffle plate 27 and a second gear 28.
Example one
Substantially as shown in figures 1, 2 and 3: air exchange system for tunnel, including both sides open-ended box 1, air exhauster 2, dust removal mechanism, filter layer 3 have set gradually from a left side to the right side in the box 1, and air exhauster 2 passes through the bolt fastening on the inner wall of box 1, and filter layer 3 passes through the bolt fastening on the inner wall of box 1. The left end of the box body 1 is fixedly connected with a filter screen.
The dust removal mechanism comprises a groove seat 4 fixedly connected to the inner wall of the box body 1, a pipeline 5 connected with the groove seat 4 in a sliding manner, a lifting block 6 connected with the outside of the pipeline 5 in a sliding manner, a power part driving the lifting block 6 to vertically reciprocate and a movable door opened and closed along with the vertical movement of the lifting block 6, wherein the top of the groove seat 4 is provided with a ring groove 7 used for collecting dust on the outer wall of the pipeline 5 scraped by the lifting block 6, and the movable door is positioned between the exhaust fan 2 and the groove seat 4; the lateral wall of the box body 1 is provided with a side opening and a sealing plate 8 for sealing the side opening, and the sealing plate 8 is clamped with the side opening.
The power part comprises a first rotating shaft 9 and a second rotating shaft 10 which are rotatably connected with the box body 1 and a motor 11 fixedly connected on the inner wall of the box body 1, and the first rotating shaft 9 and the second rotating shaft 10 are respectively and rotatably connected with the filter layer 3; the pipeline 5 is positioned between the first rotating shaft 9 and the second rotating shaft 10, and the pipeline 5 is respectively and vertically arranged with the first rotating shaft 9 and the second rotating shaft 10; a torsion spring is fixedly connected between the first rotating shaft 9 and the box body 1, first steel wire ropes 12 wound on the first rotating shaft 9 are fixedly connected to the first rotating shaft 9, the number of the first steel wire ropes 12 is two, and the first steel wire ropes 12 are fixedly connected with the top of the lifting block 6; a first gear 13 and second steel wire ropes 14 wound on the second rotating shaft 10 are fixedly connected to the second rotating shaft 10, the number of the second steel wire ropes 14 is two, and the second steel wire ropes 14 are detachably connected with the bottom of the lifting block 6; in this embodiment, the two sides of the lifting block 6 are both fixedly connected with hanging rings 16, and the free end of the second steel wire rope 14 is connected with a hook. The height of the pipeline 5 is less than the distance between the groove seat 4 and the first rotating shaft 9; a sector gear 15 meshed with the first gear 13 is fixed to an output shaft of the motor 11.
A bottom groove 17 is formed at the bottom of the lifting block 6, and the width of the bottom groove 17 is gradually enlarged from top to bottom; a sponge block 18 extending into the bottom groove 17 is bonded on the inner wall of the ring groove 7, and the sponge block 18 is positioned on the motion trail of the bottom of the lifting block 6; the bottom of the lifting block 6 is in clearance fit with the annular groove 7, namely the bottom of the lifting block 6 can extend into the annular 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 positioned above the sponge layer, the water tank 19 is fixed on the pipeline 5 through bolts, and the sponge layer is bonded on the inner wall of the pipeline 5; the top of the water tank 19 is provided with a top opening and a sealing cover for sealing the top opening, and the sealing cover is in threaded connection with the top opening; the top of the sponge layer is connected with a cotton rope 20, and the cotton rope 20 penetrates through the sealing cover and extends into the water tank 19; a plurality of through holes are formed in the pipeline 5, a plurality of sponge protrusions 21 are integrally formed on the sponge layer, the sponge protrusions 21 are attached to the inner walls of the through holes, and the free ends of the sponge protrusions 21 are flush with the outer wall of the pipeline 5.
The movable door comprises a partition plate 22 and a fixed block 23 which are fixedly connected in the box body 1, and the partition plate 22 and the fixed plate are fixed on the inner wall of the box body 1 through bolts; the partition 22 is provided with an air inlet 24, and the width of the air inlet 24 from left to right is gradually reduced; the left end of the first rotating shaft 9 and the left end of the second rotating shaft 10 are both rotationally connected with the partition plate 22; the top of the fixed block 23 is provided with a vertical groove, a rack 25 is connected in the vertical groove in a sliding manner, a spring 26 is fixedly connected between the rack 25 and the vertical groove, the top of the rack 25 is fixedly provided with a baffle 27 for sealing the air inlet 24 through a bolt, and the baffle 27 is attached to the partition plate 22; a second gear 28 engaged with the rack 25 is fixed on the second rotating shaft 10.
The specific implementation process is as follows:
placing the box body 1 on an existing cart, and then pushing the cart into a tunnel to enable the box body 1 to be located in the tunnel; the sealing cover is taken down from the top opening, sufficient water is added into the water tank 19, and then the sealing cover and the opening are connected, so that the cotton rope 20 extends into the water in the water tank 19; because cotton rope 20 is connected with the sponge layer, cotton rope 20 can transmit moisture for the sponge layer remains moisture throughout, and the sponge layer transmits moisture for sponge arch 21, makes sponge arch 21 also have moisture. Taking the sealing plate 8 down from the side opening, then placing the pipeline 5 into the groove seat 4, and limiting the pipeline 5 through the groove seat 4; sleeving the lifting block 6 on the outer wall of the pipeline 5, so that the lifting block 6 can vertically slide on the pipeline 5; the hook is hung on the hanging ring 16, so that the connection between the lifting block 6 and the second steel wire rope 14 is realized, and the second steel wire rope 14 is in a stretched state; sufficient water is added to the annular groove 7 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 both vertical to the ground, and water cannot be poured out. Finally, the sealing plate 8 is connected to the side port.
Start air exhauster 2, in air suction box 1 in air exhauster 2 will the tunnel, can completely cut off the great debris of air through the filter screen, avoid debris to get into 1 inside damages that cause of box. The air flows rightwards through the air inlet 24, the air flow can be divided through the pipeline 5, part of dust in the air can be adhered to the outer wall of the pipeline 5, the air flow continues to move rightwards, the residual dust in the air can be filtered through the filter layer 3, the air passing through the filter layer 3 is enabled to be purer, and the discharged air cannot pollute the nature; also, since the sponge protrusion 21 has moisture, dust on the sponge protrusion 21 adheres more.
Starting the motor 11, wherein an output shaft of the motor 11 drives the sector gear 15 to rotate, so that the sector gear 15 is intermittently meshed with the first gear 13; when the sector gear 15 is meshed with the first gear 13, the first gear 13 rotates anticlockwise, so that the second rotating shaft 10 is driven to rotate anticlockwise; the second rotating shaft 10 drives the second gear 28 to rotate anticlockwise, the second gear 28 drives the rack 25 to move upwards, the rack 25 drives the baffle 27 to move upwards, and the spring 26 is stretched; the air inlet 24 is sealed by a baffle 27.
The second rotating shaft 10 rotates to enable the second steel wire rope 14 to be wound on the second rotating shaft 10, the lifting block 6 is further pulled to move downwards through the second steel wire rope 14, meanwhile, the lifting block 6 pulls the first steel wire rope 12 to move downwards, and the first steel wire rope 12 is wound on the first rotating shaft 9 to further drive the first rotating shaft 9 to rotate anticlockwise, so that the torsion spring deforms; during the downward movement of the lifting block 6, the lifting block 6 is utilized to scrape off dust on the outer wall of the pipeline 5 and drive the dust to move into the annular groove 7; because the bottom of the lifting block 6 is provided with the bottom groove 17, the bottom groove 17 can play a role in temporarily collecting and converging dust, thereby preventing the dust from flying outwards; the bottom of the lifting block 6 extends into the annular groove 7, and the sponge block 18 is used for cleaning dust in the bottom groove 17 and collecting the dust into the annular groove 7; moreover, because the sponge block 18 has moisture, the bottom of the lifting block 6 is stained with moisture through the contact of the sponge block 18 and the bottom of the lifting block 6.
In addition, because the sponge bulge 21 has moisture, dust on the sponge bulge 21 also has moisture, when the lifting block 6 scrapes off the dust on the outer wall of the pipeline 5, the dust with moisture is converged with general dust, so that the dust can be further prevented from flying; in addition, due to the shielding of the baffle 27 on the air inlet 24, the right side of the baffle 22 in the pipeline 5 does not have air flow, and further, the dust on the outer wall of the pipeline 5 can be prevented from flying.
When the sector gear 15 is not meshed with the first gear 13, the acting force of the second gear 28 on the rack 25 disappears, and the acting force of the first rotating shaft 9 on the torsion spring disappears; the rack 25 moves downwards under the action of the spring 26, and then drives the baffle 27 to move downwards, so that the air inlet 24 is communicated with the inside of the pipeline 5, and the second gear 28 can be driven to rotate clockwise; meanwhile, the torsion spring drives the first rotating shaft 9 to rotate clockwise, the first steel wire rope 12 is wound on the first rotating shaft 9, the lifting block 6 is driven to move upwards through the first steel wire rope 12, the lifting block 6 also moves upwards on the second steel wire rope 14, and the second rotating shaft 10 rotates clockwise due to the fact that the second steel wire rope 14 is wound on the second rotating shaft 10, so that the second rotating shaft 10 is reset to wait for next work; in the upward movement process of the lifting block 6, because the bottom of the lifting block 6 is provided with moisture, the lifting block 6 adheres the moisture to the outer wall of the pipeline 5, and then the dust is favorably adhered to the outer wall of the pipeline 5.
By adopting the mode, a large amount of dust can be collected into the annular groove 7; after the use is finished, the sealing plate 8 is taken down from the side opening, and then the hook is separated from the hanging ring 16, so that the second steel wire rope 14 is separated from the lifting block 6; the lifting block 6 is taken down from the outer wall of the pipeline 5, the pipeline 5 is taken out from the groove seat 4, the pipeline 5 is cleaned, and the sewage in the annular groove 7 is cleared, so that the next use is facilitated.
Example two
The structure and implementation of the second embodiment are substantially the same as those of the first embodiment, and the difference is that: the box body 1 comprises a front box section and a rear box section, the front box section is detachably connected with the rear box section, in the embodiment, the front box section is connected with the rear box section through bolts, the threaded connection structure is convenient to mount and dismount, and the threaded connection structure has self-locking performance, so that the connection stability of the front box section and the rear box section is improved; and after the front box section and the rear box section are separated, the front box section and the rear box section are convenient to clean respectively, and are convenient to use better 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 sealing cover and the sealing plate 8 are taken by the handle, so that the design is more humanized and the operation is more convenient.
The foregoing is merely an example of the present invention and common general knowledge in the art of specific structures and/or features of the invention has not been set forth herein in any way. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Ventilation system for tunnel, its characterized in that: the dust removal device comprises a box body with openings at two sides, wherein an exhaust fan, a dust removal mechanism and a filter layer are sequentially arranged in the box body from left to right, the dust removal mechanism comprises a groove seat fixedly connected to the inner wall of the box body, a pipeline in sliding connection with the groove seat, a lifting block in sliding connection with the outside of the pipeline, a power part for driving the lifting block to vertically reciprocate and a movable door which is opened and closed along with the vertical movement of the lifting block, an annular groove for collecting dust on the outer wall of the pipeline scraped by the lifting block is arranged on the groove seat, and the movable door is positioned between the exhaust fan and the; the side wall of the box body is provided with a side opening and a sealing plate used for sealing the side opening, and the sealing plate is detachably connected with the side opening.
2. The ventilation system for a tunnel according to claim 1, wherein: the power part comprises a first rotating shaft and a second rotating shaft which are rotatably connected with the box body and a motor fixedly connected on the inner wall of the box body, and the first rotating shaft and the second rotating shaft are respectively and rotatably connected with the filter layer; the pipeline is positioned between the first rotating shaft and the second rotating shaft and is respectively and vertically arranged with the first rotating shaft and the second rotating shaft; a torsion spring is arranged between the first rotating shaft and the box body, a first steel wire rope wound on the first rotating shaft is fixedly connected to the first rotating shaft, and the first steel wire rope is fixedly connected with the top of the lifting block; the first gear and a second steel wire rope wound on the second rotating shaft are fixedly connected to the second rotating shaft, and the second steel wire rope is detachably connected with the bottom of the lifting block; the height of the pipeline is smaller than the distance between the groove seat and the first rotating shaft; and the output shaft of the motor is fixedly connected with a sector gear meshed with the first gear.
3. The ventilation system for a tunnel according to claim 2, wherein: hanging rings are arranged on two sides of the lifting block, and a hook is arranged at the free end of the second steel wire rope.
4. The ventilation system for a tunnel according to claim 3, wherein: a bottom groove is formed in the bottom of the lifting block, and the width of the bottom groove is gradually enlarged from top to bottom; the bottom of the lifting block is in clearance fit with the annular groove.
5. The ventilation system for a tunnel according to claim 4, wherein: the inner wall of the ring groove is provided with a sponge block which is used for extending into the bottom groove, and the sponge block is positioned on the motion trail of the bottom of the lifting block.
6. The ventilation system for a tunnel according to claim 5, wherein: a water tank and a sponge layer are arranged in the pipeline, and the water tank is positioned above the sponge layer; the top of the water tank is provided with a top opening and a sealing cover for sealing the top opening, and the sealing cover is detachably connected with the top opening; a cotton rope is arranged at the top of the sponge layer and penetrates through the sealing cover to extend into the water tank; the pipeline is provided with a plurality of through holes, the sponge layer is provided with a plurality of sponge protrusions, the sponge protrusions are attached to the inner walls of the through holes, and the free ends of the sponge protrusions are flush with the outer wall of the pipeline.
7. The ventilation system for a tunnel according to claim 6, wherein: the movable door comprises a partition plate and a fixed block which are fixedly connected in the box body, 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; the top of the fixed block is provided with a vertical groove, a rack is connected in the vertical groove in a sliding mode, a spring is arranged between the rack and the vertical groove, and the top of the rack is provided with a baffle plate used for sealing the air inlet; and a second gear meshed with the rack is fixedly connected to the second rotating shaft.
8. The ventilation system for a tunnel according to claim 7, wherein: the width of the air inlet is gradually reduced from left to right.
9. The ventilation system for a tunnel according to claim 8, wherein: the box includes front box section and back box section, front box section can dismantle with the back box section and be connected, the air exhauster is located the front box section.
10. The ventilation system for a tunnel according to claim 9, wherein: handles are arranged on the sealing cover and the sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010476208.6A CN111594472A (en) | 2020-05-29 | 2020-05-29 | Ventilation system for tunnel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010476208.6A CN111594472A (en) | 2020-05-29 | 2020-05-29 | Ventilation system for tunnel |
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| CN111594472A true CN111594472A (en) | 2020-08-28 |
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| CN202010476208.6A Pending CN111594472A (en) | 2020-05-29 | 2020-05-29 | Ventilation system for tunnel |
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Application publication date: 20200828 |