CN211397645U - Tunnel is with parcel formula spraying ventilation unit - Google Patents
Tunnel is with parcel formula spraying ventilation unit Download PDFInfo
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- CN211397645U CN211397645U CN202020099017.8U CN202020099017U CN211397645U CN 211397645 U CN211397645 U CN 211397645U CN 202020099017 U CN202020099017 U CN 202020099017U CN 211397645 U CN211397645 U CN 211397645U
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Abstract
The utility model discloses a tunnel is with parcel formula spraying ventilation unit, including dryer, atomized water shower nozzle positioner and atomized water shower device. The diameter of the wind cylinder is the same as that of the original wind cylinder in the tunnel, and the wind cylinder is sequentially connected with the tail end of the original wind cylinder. The atomized water spray head positioning device is arranged on the hard air duct and is used for fixing the atomized water spray device. The device adopts a wrapping type ventilation principle, and blows the raised dust to the palm surface by using the air in the air duct. The atomized water spraying device is connected into the tunnel and high-pressure water is sprayed to the face of the tunnel, and dust is concentrated near the face of the tunnel. The utility model discloses a conventional dust removal thinking has thoroughly been broken with parcel formula spraying ventilation unit in tunnel, will ventilate and has carried out the combination optimization with the watering. Such design can be with quick dust removal automation to starting from the dust removal speed after the blasting as the target, guarantee to start to reduce the smoke and dust to the within range that the standard requires in the short time after the spraying ventilation removes dust, practice thrift the time cost of construction in a large number.
Description
Technical Field
The utility model belongs to the technical field of civil engineering, concretely relates to parcel formula spraying ventilation unit for tunnel.
Background
The dust removal in the current tunnel construction mainly takes construction ventilation as a main part. The general length in tunnel is longer at present, often can appear the tunnel and only construct the condition of distance overlength, and the smoke and dust is hardly discharged through the construction ventilation fast after the face blasting this moment. Resulting in reduced construction efficiency and increased risk of diseases for workers, so the problem is urgently needed to be solved.
The water spraying and dust falling utilizes the spray head to atomize the pressure water to reduce water consumption, increase the collision probability and speed of dust particles and water drops and improve the dust removal efficiency, thereby achieving the purpose of eliminating dust and purifying the environment. But watering dust fall scheme is mostly using tunnel dust removal car or installs the clean spraying system of tunnel dust removal additional in the present tunnel, and these watering dust fall schemes need purchase expensive dust removal car or extra increase suction pump and water supply pipe, greatly increased the construction cost in tunnel.
Disclosure of Invention
The utility model provides a tunnel is with parcel formula spraying ventilation unit improves the dust fall efficiency of smoke and dust behind the face blasting.
In order to achieve the purpose, the utility model relates to a tunnel is with parcel formula spraying ventilation unit, including dryer and atomized water injection system, dryer one end and ventilation system are connected, and atomized water injection system is installed to the other end, and atomized water injection system includes the water pipe, installs a plurality of atomizer on the water pipe, and the water pipe inserts the water under high pressure through inserting the mouth.
Further, the water pipe is annular.
Further, the atomized water spray device is installed at 2/3 on the whole height of the wind barrel.
Further, the diameter of the atomizing nozzle is 1.5 mm.
Furthermore, the atomized water injection device is fixed in the air duct through a positioning device, the positioning device comprises a fixing ring and a connecting rod, the fixing ring is fixed on the inner wall of the air duct, one end of the connecting rod is fixed with the fixing ring, and the other end of the connecting rod is fixedly connected with the atomized water injection device.
Further, the connecting rod is made of steel wire.
Compared with the prior art, the utility model discloses following profitable technological effect has at least:
(1) the utility model adopts the wrapping type ventilation and dust removal principle, combines ventilation and water spraying, starts from the dust removal speed after blasting, ensures that the smoke dust is reduced to the range required by the specification in a short time after the spraying, ventilation and dust removal are started, and greatly saves the time cost of construction;
(2) the tunnel is internally provided with a ventilation device and high-pressure water, and the spraying ventilation device is designed to combine and optimize the existing ventilation and water spraying according to the wrapping type ventilation principle. The simple device saves cost, effectively reduces ventilation time and improves the efficiency of each cycle.
(3) The utility model discloses can realize semi-automatization dust fall outside the hole again. Stopping water supply and air supply and starting the wrapping type spraying ventilation device before blasting, controlling to recover water supply and power supply outside the tunnel after personnel withdraw and blast, and completely ventilating and dedusting when constructors enter a face, so that the available ventilating and dedusting time is reduced and the working efficiency is improved although the absolute ventilating and dedusting time is not reduced;
(4) the utility model discloses only constitute by dryer, positioner and atomizing water injection system, existing high-pressure water and air pipe in the make full use of tunnel, so its investment is low, and the installation is simple, excellent in use effect.
Further, the water pipe 22 is annular, which has the advantages of smoother water flow and uniform water mist spraying.
Further, the atomized water injection device 2 is arranged at 2/3 of the whole height of the air duct, and the dust fall effect is best when the atomized water injection device is located at 2/3 of the whole height through research.
Furthermore, the diameter of the atomizing nozzle 23 is 1.5mm, and the dust fall effect is best when the diameter is 1.5 mm.
Drawings
Fig. 1 is a schematic structural view of a wrapping type spray ventilation device for a tunnel according to the present invention;
FIG. 2 is a schematic longitudinal section of the wrapping type spray ventilator for tunnel according to the present invention;
FIG. 3 is a schematic view of an atomized water spray device;
fig. 4 is a schematic view of the present invention installed in a tunnel.
In the drawings: 1. the device comprises an air duct, 2, an atomized water spraying device, 3, a positioning device, 21, an access port, 22, a water pipe, 23, an atomized spray head, 31, a steel wire, 4, a press-in type ventilation hose, 5 and a tunnel face.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, the utility model discloses a parcel formula ventilation dust removal principle blows to the palm face after the raise dust that the blasting produced, concentrates the watering dust fall near the palm face, and the direction of ventilating is the tunnel axial, and high-pressure atomized water ejection side is the palm face direction.
The utility model provides a tunnel is with parcel formula spraying ventilation unit, includes dryer 1, atomizing water injection device 2 and positioner 3, and the dryer is the same with former dryer diameter in the tunnel, adopts two meters long stereoplasm air ducts to connect in proper order at former dryer end, uses the wind direction palm face air supply of former ventilation system, and the dryer is the stereoplasm dryer, is made by PVC (polyvinyl chloride). The tail end of the air duct is provided with an atomized water spraying device 2.
The positioning device is made of bent steel wires and comprises a fixing ring and hanging steel wires, the diameter of the fixing ring is the same as that of the air duct, the fixing ring is fixed on the inner wall of the air duct, and 5 hanging steel wires are adopted inside the air duct to position the atomized water spray head at 2/3 of the whole height of the air duct.
The adjustment of spraying direction can be realized to the different angle of buckling of every steel wire of accessible adjustment positioner. The positioning device can adjust the spraying direction as required when positioning the atomized water spray head so as to ensure the full-section watering and dust reduction of the tunnel face.
The atomized water spraying device comprises a water pipe 22, 15 water atomization nozzles 23 with the diameter of 1.5mm are uniformly arranged on the water pipe 22, the water pipe 22 is directly connected into high-pressure water in the tunnel through a connecting port 21, the connecting port 21 is arranged at the lower end of the water pipe 22, and the water pressure is not less than 2 MPa.
Furthermore, along with the tunneling of the tunnel face, the device can be repeatedly used only by increasing the length of the original ventilation pipe.
The utility model discloses a parcel formula spraying ventilation unit for tunnel, the mounting means as follows:
1) the outlet of the air supply pipe in the original tunnel construction is continuously connected with a hard pipe of 2m, the diameter of the hard pipe is the same as that of the original air pipe, the diameter of the hard pipe is 1.8m, and the original air pipe is a press-in type ventilation hose 4 as shown in figure 2;
2) manufacturing a positioning device shown in figure 1 according to the diameter of the ventilation hard pipe;
3) the nozzle of the air duct is provided with an atomized water spraying device by utilizing a positioning device, as shown in figure 3, and is connected with the existing high-pressure water in the tunnel, as shown in figure 1.
4) The atomized water spray head positioning device is made by bending steel wires, the diameter of a binding steel wire ring is the same as that of the hard air pipe, the binding steel wire ring is fixed on the hard air pipe, and the atomized water spray head is positioned at 2/3 of the whole height by adopting 5 suspension steel wires in the atomized water spray head positioning device, as shown in figure 4. When positioned at 2/3 full height, the dust fall effect is best.
The utility model discloses according to parcel formula ventilation dust removal principle, the problem that exists when having solved current construction dust fall with the water under high pressure in using the tunnel existing ventilation equipment. The utility model discloses use dust removal speed after the blasting as the target, guarantee to start reducing the smoke and dust to the within range that the standard required in the 10min after the spray ventilation removes dust, ensure next process fast and orderly's going on, practice thrift the time cost of construction in a large number. Compared with the traditional dust removal mode, the tunnel dust removal device has the advantages that the original ventilation facilities and the high-pressure water system in the tunnel can be fully utilized, and the effect of rapidly removing dust on the tunnel face is achieved. The investment is less and the use is simple. Along with the tunneling of the tunnel face, the tunnel face can be reused only by increasing the length of the hose, and the tunnel face tunneling machine is suitable for large-scale popularization.
The atomized water spray head positioning device is arranged on the hard air duct and is used for fixing the atomized water spray device. The device adopts a wrapping type ventilation principle (after the flying dust generated by blasting is blown to the palm surface, water is intensively sprayed near the palm surface 5 for dust reduction), and the wind in the wind barrel is used for blowing the flying dust to the palm surface. The atomized water spraying device is connected into the tunnel and high-pressure water is sprayed to the face of the tunnel, and dust is concentrated near the face of the tunnel. This parcel formula spraying ventilation unit has thoroughly broken conventional dust removal thinking for the tunnel, carries out the combination optimization with the watering with ventilating.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a tunnel is with parcel formula spraying ventilation unit, its characterized in that, includes dryer (1) and atomized water injection system (2), dryer (1) one end and ventilation system are connected, and atomized water injection system (2) are installed to the other end, atomized water injection system (2) include water pipe (22), install a plurality of atomizer (23) on water pipe (22), and water pipe (22) insert the water under high pressure through inserting mouth (21).
2. A tunnel-wrapping spray-ventilation unit according to claim 1, characterized in that said water pipe (22) is annular.
3. The wraparound spray ventilation device for tunnels according to claim 1, wherein the atomizing water spray device (2) is installed at 2/3 of the height of the air duct (1).
4. A tunnel-wrapping spray-ventilation unit according to claim 1, characterized in that the diameter of the atomizer head (23) is 1.5 mm.
5. The wrapped type spray ventilation device for the tunnel according to claim 1, wherein the atomized water injection device (2) is fixed in the air duct (1) through a positioning device (3), the positioning device (3) comprises a fixing ring (32) and a connecting rod (31), the fixing ring is fixed on the inner wall of the air duct (1), one end of the connecting rod is fixed with the fixing ring (32), and the other end of the connecting rod is fixedly connected with the atomized water injection device (2).
6. A tunnel-wrapping spray-ventilation unit according to claim 5, characterized in that said connecting rods (31) are made of steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099017.8U CN211397645U (en) | 2020-01-16 | 2020-01-16 | Tunnel is with parcel formula spraying ventilation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020099017.8U CN211397645U (en) | 2020-01-16 | 2020-01-16 | Tunnel is with parcel formula spraying ventilation unit |
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| CN211397645U true CN211397645U (en) | 2020-09-01 |
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| CN202020099017.8U Active CN211397645U (en) | 2020-01-16 | 2020-01-16 | Tunnel is with parcel formula spraying ventilation unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012778A (en) * | 2020-09-03 | 2020-12-01 | 广西大学 | Device and method for rapid ventilation and dust fall in tunnel engineering |
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2020
- 2020-01-16 CN CN202020099017.8U patent/CN211397645U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012778A (en) * | 2020-09-03 | 2020-12-01 | 广西大学 | Device and method for rapid ventilation and dust fall in tunnel engineering |
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