CN117108334B - Ventilation device for urban rail transit tunnel construction - Google Patents
Ventilation device for urban rail transit tunnel construction Download PDFInfo
- Publication number
- CN117108334B CN117108334B CN202311337426.1A CN202311337426A CN117108334B CN 117108334 B CN117108334 B CN 117108334B CN 202311337426 A CN202311337426 A CN 202311337426A CN 117108334 B CN117108334 B CN 117108334B
- Authority
- CN
- China
- Prior art keywords
- air
- pipe
- rotating shaft
- humidifying box
- homogenizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 51
- 238000010276 construction Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 120
- 238000003756 stirring Methods 0.000 claims description 37
- 238000004140 cleaning Methods 0.000 claims description 25
- 238000005192 partition Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 description 19
- 239000012535 impurity Substances 0.000 description 5
- 230000001376 precipitating effect Effects 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 210000003437 trachea Anatomy 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
-
- 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
-
- 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
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- 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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a ventilation device for urban rail transit tunnel construction, which comprises: an air inlet pipe; a humidification case; an air outlet pipe; a driving device; one end of the first rotating shaft is connected with the driving device, the other end of the first rotating shaft penetrates through one end of the humidifying box and one end of the air inlet pipe and extends into the air inlet pipe, a fan is arranged at the part of the first rotating shaft positioned in the air inlet pipe, and a driving gear is arranged at the part of the first rotating shaft positioned outside the humidifying box and the air inlet pipe; the air homogenizing pipe is sleeved outside the first rotating shaft, one end of the air homogenizing pipe is fixed on the inner side wall of the humidifying box, the other end of the air homogenizing pipe is separated from the inner side wall of the humidifying box by a certain distance, and a plurality of first air outlet holes are formed in the lower portion of the air homogenizing pipe at intervals; one end of the air duct is communicated with one end of the air inlet pipe, and the other end of the air duct passes through the humidifying box and is communicated with the air homogenizing pipe; an exhaust pipe; and one end of the second rotating shaft is provided with a driven gear, the other end of the second rotating shaft is positioned in the exhaust pipe, and a fan is arranged on the second rotating shaft. The invention can save cost and does not need to add water into the humidifying box frequently.
Description
Technical Field
The invention relates to the field of urban rail transit construction. More particularly, the invention relates to a ventilation device for urban rail transit tunnel construction.
Background
When the tunnel is excavated, ventilation devices are often needed to input fresh air on the ground into the tunnel and discharge dirty air in the tunnel in order to ensure the air quality in the tunnel and the construction safety of workers in the tunnel.
The ventilation unit for tunnel construction now, like the ventilation unit for track traffic subway construction of application number 202211674607.9, can realize ventilation, the exhaust of subway tunnel and stir the water in the humidification case, prevent that absorptive impurity from taking place to precipitate and being inconvenient for the discharge in the water, but realize ventilation, the exhaust of subway tunnel and prevent that impurity in the humidification case from precipitating need use a double-end motor and a driver, can increase use cost like this. And because the venthole sets up on the shunt tubes, stirring leaf and shunt tubes are in the rotation in-process, need maintain enough high water level in the humidification case, otherwise can make the venthole on the shunt tubes unable submergence, lead to the air not by the humidification get into in the tunnel promptly.
Disclosure of Invention
The invention aims to provide the ventilation device for urban rail transit tunnel construction, and ventilation and exhaust of tunnels and stirring of water in a humidifying box can be realized through one driving device, so that the cost can be saved. Through setting up even trachea, can make the air evenly get into in the water, and because of first venthole setting is in even tracheal lower part, consequently only need even tracheal lower part dip in water, can realize absorbing the tiny dust in the air simultaneously and humidify the air, need not to add water to the humidification incasement frequently like this.
To achieve these objects and other advantages and in accordance with the purpose of the invention, there is provided a ventilation device for urban rail transit tunnel construction, comprising:
an air inlet pipe, one end of which is closed, and the other end of which is open and forms an air inlet;
the humidifying box is hollow in the interior and is provided with a first water inlet and a first water outlet;
an air outlet pipe which is communicated with the upper part of the humidifying box;
a driving device;
one end of the first rotating shaft is connected with the driving device, the other end of the first rotating shaft penetrates through the lower part of the humidifying box and one end of the air inlet pipe and extends into the air inlet pipe, the first rotating shaft is rotationally connected with the humidifying box and one end of the air inlet pipe, a fan is arranged on the part, located in the air inlet pipe, of the first rotating shaft, a driving gear is arranged on the part, located outside the humidifying box and the air inlet pipe, of the first rotating shaft, a stirring rod is arranged on the first rotating shaft, and one end of the stirring rod is fixed on the first rotating shaft;
the air homogenizing pipe is arranged in the lower part of the humidifying box, extends along the length direction of the first rotating shaft, is sleeved outside the first rotating shaft, one end of the air homogenizing pipe is fixed on the inner side wall of the humidifying box, the other end of the air homogenizing pipe is separated from the inner side wall of the humidifying box by a certain distance, one end of the stirring rod is positioned between the inner side wall of the humidifying box and the other end of the air homogenizing pipe, the other end of the stirring rod extends to be opposite to the outer side wall of the air homogenizing pipe, the first rotating shaft is in rotating connection with the air homogenizing pipe, and a plurality of first air outlet holes are formed in the lower part of the air homogenizing pipe at intervals;
one end of the air duct is communicated with one end of the air inlet pipe, and the other end of the air duct passes through the middle part or the upper part of the humidifying box and is communicated with the air homogenizing pipe, and the height of the highest part on the air duct is higher than the height of the top of the air homogenizing pipe; when the stirring rod rotates along with the first rotating shaft, the air guide pipe does not limit the rotation of the stirring rod;
an exhaust pipe;
and one end of the second rotating shaft is provided with a driven gear meshed with the driving gear, the other end of the second rotating shaft is positioned in the exhaust pipe, and a fan is arranged on the second rotating shaft.
Preferably, in the ventilation device for urban rail transit tunnel construction, the air homogenizing pipe is cylindrical and is coaxially arranged with the first rotating shaft.
Preferably, in the ventilation device for urban rail transit tunnel construction, the stirring rod is L-shaped and comprises a vertical part and a horizontal part, the tail end of the vertical part is fixed on the first rotating shaft, and the horizontal part is opposite to the air homogenizing pipe and is separated by a certain distance.
Preferably, in the ventilation device for urban rail transit tunnel construction, the ventilation device further comprises:
the brush is arranged in the air homogenizing pipe, is fixed on the first rotating shaft and extends along the length direction of the first rotating shaft, and bristles of the brush are attached to the inner side wall of the air homogenizing pipe.
Preferably, in the ventilation device for urban rail transit tunnel construction, the top of the humidifying box is detachably connected with the side wall of the humidifying box, and the humidifying box is also provided with a second water inlet and a second water outlet;
the ventilation device for urban rail transit tunnel construction further comprises:
the separator is arranged in the humidifying box and divides the interior of the humidifying box into an upper cavity and a lower cavity, the air homogenizing pipe is positioned in the lower cavity, and a through hole is formed in the separator and is communicated with the upper cavity and the lower cavity; the first water inlet and the first water outlet are communicated with the upper cavity, and the second water inlet and the second water outlet are communicated with the lower cavity;
the first upper water level gauge is arranged in the lower cavity, and the height of the highest part of the air duct is higher than the height of the bottom of the first upper water level gauge;
the first lower water level gauge is arranged in the lower cavity, the bottom of the first lower water level gauge is lower than the top of the first upper water level gauge and higher than the air homogenizing pipe, and the first lower water level gauge is always positioned above the stirring rod in the rotation process of the stirring rod;
the air guide cylinder is vertically arranged and is positioned in the upper cavity, the bottom of the air guide cylinder is fixedly connected with the partition plate, and the inside of the air guide cylinder is communicated with the through hole;
the air homogenizing disc is arranged in the upper cavity and is close to the partition plate, the air homogenizing disc is annular, hollow in the inside and sleeved outside the air guide cylinder, and a plurality of second air outlet holes are formed in the top of the air homogenizing disc at intervals;
the lower part of the connecting cylinder is inserted into the top of the air guide cylinder, the top of the connecting cylinder is closed, and the bottom of the connecting cylinder is open;
the connecting pipes are arranged at intervals along the circumferential direction of the gas homogenizing disc, two ends of each connecting pipe are respectively connected with the upper part of the connecting cylinder and the outer edge of the top of the gas homogenizing disc, and the inside of each connecting pipe is communicated with the inside of the connecting cylinder and the inside of the gas homogenizing disc;
the second upper water level gauge is arranged in the upper cavity, and the top of the air guide cylinder is lower than the air outlet pipe and higher than the bottom of the second upper water level gauge;
the second water level gauge down, the height of its bottom is less than the height of the bottom of second water level gauge on, is higher than the height at the top of even gas dish, and the second is gone up water level gauge and second water level gauge down all do not restrict even gas dish, the whole that many connecting pipes and connecting cylinder constitute upwards.
Preferably, in the ventilation device for urban rail transit tunnel construction, the humidifying box is cuboid, the air homogenizing disc is square annular, the air guide cylinder and the connecting cylinder are cuboid, and the air guide cylinder, the connecting cylinder and the air homogenizing disc are coaxially arranged with the humidifying box.
Preferably, in the ventilation device for urban rail transit tunnel construction, a filter screen is respectively arranged in the air inlet pipe and the exhaust pipe, and the filter screens in the air inlet pipe and the exhaust pipe are respectively opposite to the other end of the first rotating shaft and the other end of the second rotating shaft.
Preferably, in the ventilation device for urban rail transit tunnel construction, one side of each of the two filter screens is provided with a cleaning brush, the first rotating shaft penetrates through the filter screen in the air inlet pipe and is connected with the cleaning brush in the air inlet pipe, the cleaning brush in the exhaust pipe is positioned between the second rotating shaft and the filter screen in the exhaust pipe, the second rotating shaft is connected with the cleaning brush in the exhaust pipe, when the first rotating shaft and the second rotating shaft rotate, the two cleaning brushes respectively rotate along the filter screens corresponding to the first rotating shaft and the second rotating shaft, and do not seal meshes on the filter screens corresponding to the first rotating shaft and the second rotating shaft, the bottoms of the air inlet pipe and the exhaust pipe are respectively provided with an ash receiving frame, the bottoms of the two ash receiving frames are respectively provided with an opening, and two ash receiving frames are respectively opposite to the two cleaning brushes.
Preferably, in the ventilation device for urban rail transit tunnel construction, an exhaust fan is arranged in the air outlet pipe.
Preferably, in the ventilation device for urban rail transit tunnel construction, one end of the air inlet pipe is connected to the outer wall of the humidifying box and forms a closed end.
The invention at least comprises the following beneficial effects:
according to the invention, the first rotating shaft is driven to rotate by the driving device, so that the first rotating shaft can rotate to drive the second rotating shaft and the stirring rod to rotate, the fan in the air inlet pipe and the fan in the air outlet pipe can rotate, ventilation and air exhaust of a tunnel are further realized, the water in the humidifying box can be stirred by the rotation of the stirring rod, and impurities absorbed by the water are prevented from precipitating and are inconvenient to discharge, so that the cost can be saved.
The invention can make air evenly enter into water by arranging the air homogenizing pipe, which is beneficial to improving the absorption efficiency of water to fine dust, and only needs to dip the lower part of the air homogenizing pipe into water, thereby absorbing the fine dust in the air and humidifying the air, thus the water does not need to be added into the humidifying box frequently, and only a small amount of water needs to be discharged when the sewage in the humidifying box needs to be discharged.
The invention firstly removes larger particle dust in the external fresh air through the filter screen, then removes fine dust in the air through the water in the lower cavity, finally evenly guides the air into clean water in the upper cavity through the air homogenizing disc, and the air enters the tunnel through the air outlet pipe after being further humidified and purified, thus ensuring that clean and moist fresh air is introduced into the tunnel.
The brush is arranged in the air homogenizing pipe and can rotate along with the first rotating shaft, so that sewage in the lower cavity can be prevented from precipitating in the air homogenizing pipe, and fine dust in the air can be prevented from accumulating in the air homogenizing pipe when the air does not need to be humidified.
The top of the humidifying box can be opened, and the whole formed by the air homogenizing disc, the plurality of connecting pipes and the connecting cylinder can be taken out upwards, so that when air is not required to be humidified, the air is filtered through the filter screen, the air homogenizing pipe and the air homogenizing disc, and when more fine dust is accumulated in the air homogenizing disc, the plurality of connecting pipes and the connecting cylinder, the whole formed by the air homogenizing disc, the plurality of connecting pipes and the connecting cylinder can be taken out for cleaning, so that the humidifying box is more convenient to use.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic view of a ventilation device according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating the structure of an air inlet duct and an air outlet duct according to an embodiment of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
It should be noted that, in the description of the present invention, the terms "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 and 2, the present invention provides a ventilation device for urban rail transit tunnel construction, comprising:
an air inlet pipe 1, one end of which is closed, and the other end of which is open and forms an air inlet;
a humidifying box 2, the interior of which is hollow and is provided with a first water inlet and a first water outlet;
an air outlet pipe 3 which communicates with the upper part of the humidification tank 2;
a driving device 4;
the first rotating shaft 5, one end of which is connected with the driving device 4, the other end passes through the lower part of the humidifying box 2 and one end of the air inlet pipe 1 and extends into the air inlet pipe 1, the first rotating shaft 5 is rotationally connected with the humidifying box 2 and one end of the air inlet pipe 1, a fan 501 is arranged on the part of the first rotating shaft 5 positioned in the air inlet pipe 1, a driving gear 502 is arranged on the part of the first rotating shaft 5 positioned outside the humidifying box 2 and the air inlet pipe 1, a stirring rod 503 is arranged on the first rotating shaft 5, and one end of the stirring rod 503 is fixed on the first rotating shaft 5, so that the stirring rod 503 can rotate along with the first rotating shaft 5;
the air homogenizing pipe 6 is arranged in the lower part of the humidification tank 2, extends along the length direction of the first rotating shaft 5, is sleeved outside the first rotating shaft 5, one end of the air homogenizing pipe 6 is fixed on the inner side wall of the humidification tank 2, the other end of the air homogenizing pipe is separated from the inner side wall of the humidification tank 2 by a certain distance, one end of the stirring rod 503 is positioned between the inner side wall of the humidification tank 2 and the other end of the air homogenizing pipe 6, the other end of the stirring rod extends to be opposite to the outer side wall of the air homogenizing pipe 6, the first rotating shaft 5 is rotationally connected with the air homogenizing pipe 6, and a plurality of first air outlet holes are formed in the lower part of the air homogenizing pipe 6 at intervals;
one end of the air duct 7 is communicated with one end of the air inlet pipe 1, the other end of the air duct 7 passes through the middle part or the upper part of the humidifying box 2 and then is communicated with the air homogenizing pipe 6, and the highest part on the air duct 7 is higher than the top part of the air homogenizing pipe 6; when the stirring rod 503 rotates along with the first rotating shaft 5, the air duct 7 does not limit the stirring rod 503 to rotate, i.e. the air duct 7 is not positioned on the rotating path of the stirring rod 503;
an exhaust duct 8;
and a second rotating shaft 9, one end of which is provided with a driven gear 901 meshed with the driving gear 502, and the other end of which is positioned in the exhaust pipe 8 and is provided with a fan. The rotation directions of the driving gear 502 and the driven gear 901 are opposite, so that the rotation directions of the first rotating shaft 5 and the second rotating shaft 9 are opposite, and the rotation directions of fans on the first rotating shaft 5 and the second rotating shaft 9 are opposite, so that fresh air is pumped into a tunnel through the air inlet pipe 1, and meanwhile, the air in the tunnel can be discharged through the exhaust pipe 8. The direction indicated by the arrow in fig. 1 and 2 is the flow direction of the gas.
This scheme provides a ventilation unit for urban rail transit tunnel construction, when using, introduce water in to humidification case 2 through first water inlet, make even trachea 6 submerge, and make the water level be less than the height of the highest part in position on the air duct 7, afterwards drive first pivot 5 through drive arrangement 4 and rotate, can make first pivot 5 rotate and drive second pivot 9 and puddler 503 rotation, first pivot 5 and second pivot 9 rotate, enable the fan rotation in air-supply line 1 and the exhaust pipe 8, and then realize ventilation, the exhaust in tunnel, puddler 503 rotation can stir the water in the humidification case 2, prevent that absorptive impurity from taking place to precipitate and being inconvenient for the discharge in the water. Fresh air is pumped into the air inlet pipe 1 under the action of a fan in the air inlet pipe 1, is led into the air homogenizing pipe 6 through the air guide pipe 7, the air homogenizing pipe 6 can disperse the air and enable the air to uniformly enter water, fine dust in the air is absorbed by the water, and meanwhile, the air is humidified and then enters a tunnel through the air outlet pipe 3. Air in the tunnel is discharged outside the tunnel through the exhaust pipe 8 under the action of a fan in the exhaust pipe 8. When the water in the humidifying box 2 absorbs more dust or the water in the humidifying box 2 is insufficient, the water in the humidifying box 2 can be discharged through the first water outlet, and then clean water is introduced through the first water inlet.
In another aspect, in the ventilation device for urban rail transit tunnel construction, the air homogenizing pipe 6 is cylindrical and is coaxially arranged with the first rotating shaft 5.
In another aspect, in the ventilation device for urban rail transit tunnel construction, the stirring rod 503 is L-shaped and includes a vertical portion and a horizontal portion, the end of the vertical portion is fixed on the first rotating shaft 5, and the horizontal portion is opposite to the air homogenizing pipe 6 and is spaced a certain distance apart.
In another aspect, the ventilation device for urban rail transit tunnel construction further includes:
and a brush 504 disposed in the air homogenizing pipe 6, fixed to the first rotating shaft 5, and extending in a longitudinal direction of the first rotating shaft 5, wherein bristles of the brush 504 are attached to an inner side wall of the air homogenizing pipe 6. Thus, the sewage in the humidification tank 2 can be prevented from precipitating in the air homogenizing pipe 6, and fine dust in the air can be prevented from accumulating in the air homogenizing pipe 6 when the air does not need to be humidified.
In another scheme, in the ventilation device for urban rail transit tunnel construction, the top of the humidifying box 2 is detachably connected with the side wall of the humidifying box, the top of the humidifying box 2 is a sealing cover, the sealing cover can be opened, and a second water inlet and a second water outlet are further formed in the humidifying box 2;
the ventilation device for urban rail transit tunnel construction further comprises:
a partition board 10, which is arranged in the humidification tank 2 and divides the interior of the humidification tank 2 into an upper cavity and a lower cavity, wherein the air homogenizing pipe 6 is positioned in the lower cavity, and a through hole is arranged on the partition board 10 and is communicated with the upper cavity and the lower cavity; the first water inlet and the first water outlet are communicated with the upper cavity, and the second water inlet and the second water outlet are communicated with the lower cavity;
a first upper water level gauge 11 provided in the lower chamber, the height of the highest portion of the air duct 7 being higher than the height of the bottom of the first upper water level gauge 11; this can prevent water in the humidification chamber 2 from flowing into the air inlet pipe 1 through the air duct 7 by making the water level in the lower chamber lower than the highest position on the air duct 7.
The first lower water level gauge 12 is arranged in the lower cavity, the bottom of the first lower water level gauge 12 is lower than the top of the first upper water level gauge 11 and higher than the air homogenizing pipe 6, so that the air homogenizing pipe 6 is always immersed in water, and the first lower water level gauge 12 is always positioned above the stirring rod 503 in the rotation process of the stirring rod 503, so that the stirring rod 503 is prevented from being influenced by the first lower water level gauge 12;
the air guide cylinder 13 is vertically arranged and is positioned in the upper cavity, the bottom of the air guide cylinder 13 is fixedly connected with the partition plate 10, and the inside of the air guide cylinder 13 is communicated with the through hole;
the air homogenizing disc 14 is arranged in the upper cavity and is close to the partition plate 10, the air homogenizing disc 14 is annular, is hollow in the inside and sleeved outside the air guide cylinder 13, and a plurality of second air outlet holes are formed in the top of the air homogenizing disc 14 at intervals;
a connecting cylinder 15, the lower part of which is inserted into the top of the air guide cylinder 13, the top of the connecting cylinder 15 is closed, and the bottom is open; the lower portion of the connecting cylinder 15 may be screw-coupled with the top of the gas cylinder 13 such that the connecting cylinder 15 is easily fixed to the top of the gas cylinder 13 and also easily removed.
A plurality of connecting pipes 16 arranged at intervals along the circumferential direction of the gas distribution plate 14, wherein two ends of each connecting pipe 16 are respectively connected with the upper part of the connecting cylinder 15 and the outer edge of the top of the gas distribution plate 14, and the inside of each connecting pipe 16 is communicated with the connecting cylinder 15 and the inside of the gas distribution plate 14;
a second upper water level gauge 17 disposed in the upper chamber, the top of the air tube 13 having a height lower than the height of the air outlet tube 3 and higher than the bottom of the second upper water level gauge 17, such that the water level in the upper chamber does not exceed the top of the air tube 13 and the air outlet tube 3;
the bottom of the second lower water level gauge 18 is lower than the bottom of the second upper water level gauge 17 and higher than the top of the gas homogenizing disc 14, so that the gas homogenizing disc 14 is always immersed in water, and the second upper water level gauge 17 and the second lower water level gauge 18 do not limit the whole body formed by the gas homogenizing disc 14, the plurality of connecting pipes 16 and the connecting cylinder 15 to be upward.
This scheme provides a ventilation unit for urban rail transit tunnel construction, when using, respectively through first water inlet and second water inlet to upper portion cavity and lower part cavity in leading-in water, make the water level in the upper portion cavity be located between the bottom of second upper water level gauge 17 and second lower water level gauge 18, and be close to the bottom of second upper water level gauge 17, the water level in the lower part cavity is located between the bottom of first upper water level gauge 11 and first lower water level gauge 12, and be close to the bottom of first upper water level gauge 11, treat even trachea 6 and even gas dish 14 after submergence, drive first pivot 5 through drive arrangement 4 and rotate, can make first pivot 5 rotate and drive second pivot 9 and puddler 503 rotate, first pivot 5 and second pivot 9 rotate, can make the fan in air-supply line 1 and the exhaust pipe 8 rotate, and then realize ventilation, exhaust in the puddler 503 rotates and can stir the water in the humidification case 2, prevent that the absorptive impurity from taking place to precipitate and being inconvenient for discharging. Fresh air is pumped into the air inlet pipe 1 under the action of a fan in the air inlet pipe 1, then is led into the air homogenizing pipe 6 through the air guide pipe 7, the air homogenizing pipe 6 can disperse the air and enable the air to uniformly enter water, fine dust in the air is absorbed by the water, meanwhile, the air is humidified, finally, the air is led into the air homogenizing disc 14 through the air guide pipe 13, the connecting cylinder 15 and the connecting pipes 16, then the air is uniformly led into clean water in the upper cavity by the air homogenizing disc 14, and after the air is further humidified and purified, the air enters a tunnel through the air outlet pipe 3. Air in the tunnel is discharged outside the tunnel through the exhaust pipe 8 under the action of a fan in the exhaust pipe 8. When the water in the upper cavity and the lower cavity absorbs more dust or the water quantity is insufficient, the rest water can be discharged through the first water outlet and the second water outlet, and then clean water is introduced through the first water inlet and the second water inlet.
In another scheme, in the ventilation device for urban rail transit tunnel construction, the humidifying box 2 is cuboid, the air homogenizing disc 14 is square annular, the air guide cylinder 13 and the connecting cylinder 15 are cuboid, and the air guide cylinder 13, the connecting cylinder 15 and the air homogenizing disc 14 are coaxially arranged with the humidifying box 2.
In another scheme, in the ventilation device for urban rail transit tunnel construction, a filter screen 19 is respectively arranged in the air inlet pipe 1 and the exhaust pipe 8, and the filter screens in the air inlet pipe 1 and the exhaust pipe 8 are respectively opposite to the other end of the first rotating shaft 5 and the other end of the second rotating shaft 9. Through setting up the filter screen in air-supply line 1 for fresh air passes through the filter screen earlier and gets rid of the dust of wherein great granule, and the tiny dust is got rid of to the water in the rethread humidification case 2, finally gets into in the tunnel through air-out pipe 3, can guarantee like this to let in clean moist fresh air to the tunnel. Through setting up the filter screen in exhaust pipe 8 for the air in the tunnel is discharged outside the tunnel after being prefiltered.
In another scheme, in the ventilation device for urban rail transit tunnel construction, one side of each of the two filter screens is provided with a cleaning brush 20, the first rotating shaft 5 penetrates through the filter screen in the air inlet pipe 1 and is connected with the cleaning brush in the air inlet pipe 1, the cleaning brush in the exhaust pipe 8 is located between the second rotating shaft 9 and the filter screen in the second rotating shaft, the second rotating shaft 9 is connected with the cleaning brush in the exhaust pipe 8, when the first rotating shaft and the second rotating shaft rotate, the two cleaning brushes respectively rotate along the filter screen corresponding to the two cleaning brushes, and the mesh holes on the filter screen corresponding to the two cleaning brushes are not completely sealed, the bottoms of the air inlet pipe 1 and the exhaust pipe 8 are respectively provided with an ash receiving frame, the bottoms of the two ash receiving frames are respectively provided with an opening, and the two openings are respectively provided with a sealing cover, and the two ash receiving frames are respectively opposite to the two cleaning brushes. When the first rotating shaft 5 and the second rotating shaft 9 rotate, the corresponding cleaning brushes are respectively driven to rotate, and the two cleaning brushes can respectively brush dust on the corresponding filter screens, so that the filter screens are prevented from being blocked. When the dust in the dust receiving frame needs to be guided out, the sealing cover is opened, and the dust can be guided out through the opening.
In another scheme, in the ventilation device for urban rail transit tunnel construction, an exhaust fan is arranged in the air outlet pipe 3, and fresh air after dust removal and humidification in the humidification tank 2 is pumped into the tunnel through the exhaust fan.
In another scheme, in the ventilation device for urban rail transit tunnel construction, one end of the air inlet pipe 1 is connected to the outer wall of the humidifying box 2 and forms a closed end. Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. Ventilation unit is used in urban rail transit tunnel construction, its characterized in that includes:
an air inlet pipe, one end of which is closed, and the other end of which is open and forms an air inlet;
the humidifying box is hollow in the interior and is provided with a first water inlet and a first water outlet;
an air outlet pipe which is communicated with the upper part of the humidifying box;
a driving device;
one end of the first rotating shaft is connected with the driving device, the other end of the first rotating shaft penetrates through the lower part of the humidifying box and one end of the air inlet pipe and extends into the air inlet pipe, the first rotating shaft is rotationally connected with the humidifying box and one end of the air inlet pipe, a fan is arranged on the part, located in the air inlet pipe, of the first rotating shaft, a driving gear is arranged on the part, located outside the humidifying box and the air inlet pipe, of the first rotating shaft, a stirring rod is arranged on the first rotating shaft, and one end of the stirring rod is fixed on the first rotating shaft;
the air homogenizing pipe is arranged in the lower part of the humidifying box, extends along the length direction of the first rotating shaft, is sleeved outside the first rotating shaft, one end of the air homogenizing pipe is fixed on the inner side wall of the humidifying box, the other end of the air homogenizing pipe is separated from the inner side wall of the humidifying box by a certain distance, one end of the stirring rod is positioned between the inner side wall of the humidifying box and the other end of the air homogenizing pipe, the other end of the stirring rod extends to be opposite to the outer side wall of the air homogenizing pipe, the first rotating shaft is in rotating connection with the air homogenizing pipe, and a plurality of first air outlet holes are formed in the lower part of the air homogenizing pipe at intervals;
one end of the air duct is communicated with one end of the air inlet pipe, and the other end of the air duct passes through the middle part or the upper part of the humidifying box and is communicated with the air homogenizing pipe, and the height of the highest part on the air duct is higher than the height of the top of the air homogenizing pipe; when the stirring rod rotates along with the first rotating shaft, the air guide pipe does not limit the rotation of the stirring rod;
an exhaust pipe;
and one end of the second rotating shaft is provided with a driven gear meshed with the driving gear, the other end of the second rotating shaft is positioned in the exhaust pipe, and a fan is arranged on the second rotating shaft.
2. The ventilation device for construction of urban rail transit tunnel according to claim 1, wherein the air homogenizing pipe is cylindrical and is coaxially disposed with the first rotating shaft.
3. The ventilation device for construction of urban rail transit tunnel according to claim 1, wherein the stirring rod is L-shaped and comprises a vertical portion and a horizontal portion, the end of the vertical portion is fixed on the first rotating shaft, and the horizontal portion is opposite to the air homogenizing pipe and is spaced apart from the air homogenizing pipe by a certain distance.
4. The ventilation device for construction of urban rail transit tunnel according to claim 2, further comprising:
the brush is arranged in the air homogenizing pipe, is fixed on the first rotating shaft and extends along the length direction of the first rotating shaft, and bristles of the brush are attached to the inner side wall of the air homogenizing pipe.
5. The ventilation device for urban rail transit tunnel construction according to claim 3, wherein the top of the humidifying box is detachably connected with the side wall thereof, and a second water inlet and a second water outlet are further arranged on the humidifying box;
the ventilation device for urban rail transit tunnel construction further comprises:
the separator is arranged in the humidifying box and divides the interior of the humidifying box into an upper cavity and a lower cavity, the air homogenizing pipe is positioned in the lower cavity, and a through hole is formed in the separator and is communicated with the upper cavity and the lower cavity; the first water inlet and the first water outlet are communicated with the upper cavity, and the second water inlet and the second water outlet are communicated with the lower cavity;
the first upper water level gauge is arranged in the lower cavity, and the height of the highest part of the air duct is higher than the height of the bottom of the first upper water level gauge;
the first lower water level gauge is arranged in the lower cavity, the bottom of the first lower water level gauge is lower than the top of the first upper water level gauge and higher than the air homogenizing pipe, and the first lower water level gauge is always positioned above the stirring rod in the rotation process of the stirring rod;
the air guide cylinder is vertically arranged and is positioned in the upper cavity, the bottom of the air guide cylinder is fixedly connected with the partition plate, and the inside of the air guide cylinder is communicated with the through hole;
the air homogenizing disc is arranged in the upper cavity and is close to the partition plate, the air homogenizing disc is annular, hollow in the inside and sleeved outside the air guide cylinder, and a plurality of second air outlet holes are formed in the top of the air homogenizing disc at intervals;
the lower part of the connecting cylinder is inserted into the top of the air guide cylinder, the top of the connecting cylinder is closed, and the bottom of the connecting cylinder is open;
the connecting pipes are arranged at intervals along the circumferential direction of the gas homogenizing disc, two ends of each connecting pipe are respectively connected with the upper part of the connecting cylinder and the outer edge of the top of the gas homogenizing disc, and the inside of each connecting pipe is communicated with the inside of the connecting cylinder and the inside of the gas homogenizing disc;
the second upper water level gauge is arranged in the upper cavity, and the top of the air guide cylinder is lower than the air outlet pipe and higher than the bottom of the second upper water level gauge;
the second water level gauge down, the height of its bottom is less than the height of the bottom of second water level gauge on, is higher than the height at the top of even gas dish, and the second is gone up water level gauge and second water level gauge down all do not restrict even gas dish, the whole that many connecting pipes and connecting cylinder constitute upwards.
6. The ventilation device for urban rail transit tunnel construction according to claim 5, wherein the humidifying box is rectangular, the air homogenizing disc is square annular, the air guide tube and the connecting tube are rectangular, and the air guide tube, the connecting tube and the air homogenizing disc are arranged coaxially with the humidifying box.
7. The ventilation device for construction of urban rail transit tunnels according to claim 1, wherein one filter screen is respectively arranged in the air inlet pipe and the exhaust pipe, and the filter screens in the air inlet pipe and the exhaust pipe are respectively opposite to the other end of the first rotating shaft and the other end of the second rotating shaft.
8. The ventilation device for construction of urban rail transit tunnels according to claim 7, wherein one side of each of the two filter screens is provided with a cleaning brush, the first rotating shaft penetrates through the filter screen in the air inlet pipe and is connected with the cleaning brush in the air inlet pipe, the cleaning brush in the exhaust pipe is positioned between the second rotating shaft and the filter screen in the air inlet pipe, the second rotating shaft is connected with the cleaning brush in the exhaust pipe, when the first rotating shaft and the second rotating shaft rotate, the two cleaning brushes respectively rotate against the filter screens corresponding to the two cleaning brushes and do not completely seal meshes on the filter screens corresponding to the two cleaning brushes, the bottoms of the air inlet pipe and the exhaust pipe are respectively provided with an ash receiving frame, the bottoms of the two ash receiving frames are respectively provided with an opening, the two openings are respectively provided with a sealing cover, and the two ash receiving frames are respectively opposite to the two cleaning brushes.
9. The ventilation device for construction of urban rail transit tunnels according to claim 1, wherein an exhaust fan is arranged in the air outlet pipe.
10. The ventilation apparatus for construction of urban rail transit tunnel according to claim 1, wherein one end of the air inlet pipe is connected to an outer wall of the humidifying box and forms a closed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311337426.1A CN117108334B (en) | 2023-10-17 | 2023-10-17 | Ventilation device for urban rail transit tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311337426.1A CN117108334B (en) | 2023-10-17 | 2023-10-17 | Ventilation device for urban rail transit tunnel construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117108334A CN117108334A (en) | 2023-11-24 |
| CN117108334B true CN117108334B (en) | 2023-12-19 |
Family
ID=88800425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311337426.1A Active CN117108334B (en) | 2023-10-17 | 2023-10-17 | Ventilation device for urban rail transit tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117108334B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0842300A (en) * | 1994-07-27 | 1996-02-13 | Fujita Corp | Dust elimination treatment method and dust elimination treatment device in tunnel work |
| JP2007278022A (en) * | 2006-04-11 | 2007-10-25 | Sakamoto Shokai:Kk | Air duct device and ventilator in tunnel gallery |
| CN207102181U (en) * | 2017-08-22 | 2018-03-16 | 包头智茂元生态农业科技有限公司 | A kind of uniform dedusting ventilation unit of Mining Environment Conservation |
| CN109113783A (en) * | 2018-08-25 | 2019-01-01 | 许明 | A kind of gas extraction device for an upper corner of a coal mining working face |
| CN213807740U (en) * | 2020-09-09 | 2021-07-27 | 招远市灵山金矿 | A dust collector for gold mine exploitation |
| CN217312729U (en) * | 2022-05-13 | 2022-08-30 | 中交一公局厦门工程有限公司 | Mobilizable ventilation equipment in tunnel bituminous paving |
| CN217681831U (en) * | 2022-07-11 | 2022-10-28 | 圆源(威海)动力机械有限公司 | Ventilation and dust removal device for mining |
| CN217897953U (en) * | 2021-07-05 | 2022-11-25 | 煤炭工业太原设计研究院集团有限公司 | Mine removes dust collector |
| CN115929378A (en) * | 2022-12-26 | 2023-04-07 | 中建安装集团有限公司 | Ventilation unit is used in track traffic subway construction |
-
2023
- 2023-10-17 CN CN202311337426.1A patent/CN117108334B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0842300A (en) * | 1994-07-27 | 1996-02-13 | Fujita Corp | Dust elimination treatment method and dust elimination treatment device in tunnel work |
| JP2007278022A (en) * | 2006-04-11 | 2007-10-25 | Sakamoto Shokai:Kk | Air duct device and ventilator in tunnel gallery |
| CN207102181U (en) * | 2017-08-22 | 2018-03-16 | 包头智茂元生态农业科技有限公司 | A kind of uniform dedusting ventilation unit of Mining Environment Conservation |
| CN109113783A (en) * | 2018-08-25 | 2019-01-01 | 许明 | A kind of gas extraction device for an upper corner of a coal mining working face |
| CN213807740U (en) * | 2020-09-09 | 2021-07-27 | 招远市灵山金矿 | A dust collector for gold mine exploitation |
| CN217897953U (en) * | 2021-07-05 | 2022-11-25 | 煤炭工业太原设计研究院集团有限公司 | Mine removes dust collector |
| CN217312729U (en) * | 2022-05-13 | 2022-08-30 | 中交一公局厦门工程有限公司 | Mobilizable ventilation equipment in tunnel bituminous paving |
| CN217681831U (en) * | 2022-07-11 | 2022-10-28 | 圆源(威海)动力机械有限公司 | Ventilation and dust removal device for mining |
| CN115929378A (en) * | 2022-12-26 | 2023-04-07 | 中建安装集团有限公司 | Ventilation unit is used in track traffic subway construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117108334A (en) | 2023-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108284936A (en) | A kind of ship inner air-cleaning device | |
| CN106524314A (en) | Air purification unit | |
| CN117108334B (en) | Ventilation device for urban rail transit tunnel construction | |
| CN112915757B (en) | Internal and external air exchange type formaldehyde purification treatment system and purification method thereof | |
| CN213706576U (en) | Modified ABS plastic granules storage tank | |
| CN206880632U (en) | A kind of dust catcher | |
| CN203857654U (en) | Humidification and ventilation device and air conditioning system | |
| CN212171863U (en) | Automobile air conditioner filtering device | |
| CN111735144A (en) | Air purification device for elevator | |
| CN111467916A (en) | Welding fume purifier | |
| CN214581658U (en) | Air moisture purifier | |
| CN107551731B (en) | Haze clearing device and window | |
| CN209695894U (en) | A kind of UV photodissociation air cleaning decontamination equipment | |
| CN216023769U (en) | Smoke and dust purifier of adjustable amount of wind | |
| CN115899920A (en) | Environment-friendly energy-saving type air interchanger | |
| CN212523620U (en) | Closed waste gas treatment device for livestock and poultry farm | |
| CN211311183U (en) | Sewage treatment filter equipment | |
| CN211400218U (en) | Fan equipment for fresh air system | |
| CN210320399U (en) | Automatic change textile machinery workshop and use air degassing unit | |
| CN109176316B (en) | A kind of finishing cutting dust environment protection movable collecting box | |
| CN206604638U (en) | A kind of haze air cleaner | |
| CN108421350B (en) | Environment-friendly dust removal device | |
| CN214813484U (en) | Dust absorbing device suitable for rostone cutting machine | |
| CN205699891U (en) | Water curtain shutter | |
| CN207024854U (en) | Air purification cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |