CN216077192U - A soft economical wind channel for tunnel long distance construction ventilation - Google Patents
A soft economical wind channel for tunnel long distance construction ventilation Download PDFInfo
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- CN216077192U CN216077192U CN202122721852.8U CN202122721852U CN216077192U CN 216077192 U CN216077192 U CN 216077192U CN 202122721852 U CN202122721852 U CN 202122721852U CN 216077192 U CN216077192 U CN 216077192U
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- tunnel
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- air duct
- soft
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- 238000009423 ventilation Methods 0.000 title claims abstract description 38
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 5
- 229920000728 polyester Polymers 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 2
- 238000003908 quality control method Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 3
- 238000005516 engineering process Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Classifications
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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
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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- 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)
- Duct Arrangements (AREA)
Abstract
The utility model relates to the technical field of tunnel engineering, and provides a soft economical air duct for long-distance tunnel construction ventilation, which comprises a tunnel body, wherein a partition piece is axially arranged in the tunnel body and divides the tunnel body into a first channel and a second channel, the tail end of the first channel is provided with a blocking plate which completely covers the first channel, one side of the blocking plate, which is close to the first channel, is provided with an axial flow fan, and one side of the blocking plate, which is far away from the first channel, is provided with a pressed-in air duct; the upper air duct is made into the negative pressure large air duct, the friction loss of ventilation is reduced by increasing the diameter of the air duct and reducing the air flow speed, and meanwhile, the quality control is separated by the partition piece, so that the air leakage rate is reduced, the comprehensive resistance of the conventional pressed ventilation air duct is reduced, the ventilation electric charge can be saved, the ventilation problem of construction of a long tunnel and a single hole of an extra-long tunnel can be solved, and the ventilation efficiency of the tunnel face can be improved.
Description
Technical Field
The utility model relates to the technical field of tunnel engineering, in particular to a soft economical air duct for long-distance construction ventilation of a tunnel.
Background
The existing tunnel construction ventilation technology comprises the following steps: one is a forced-in ventilation technology (including a mixed ventilation technology assisted with pumping drainage), namely, an axial flow fan is pressed into a tunnel face in front of a tunnel through a ventilation pipeline from a tunnel portal, and the ventilation technology is generally applied to a single-head tunneling tunnel within 4 km; the second type is a tunnel ventilation technology, namely, under the condition of two or more parallel construction tunnels, one tunnel is taken as a fresh air introduction (introduced through a jet fan) channel, an axial flow fan is installed at the tail end of the fresh air introduction channel to press fresh air into each construction working face, and dirty air is introduced and exhausted (generally assisted by the jet fan) to the outside of a tunnel through other channels (logistics transportation channels) except the fresh air tunnel.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a soft economical air duct for long-distance tunnel construction ventilation, which is characterized in that an upper air duct is made into a negative pressure large air duct, the air duct diameter is increased, the air flow speed is reduced, the friction loss of ventilation is reduced, meanwhile, the quality control is separated by a partition piece, the air leakage rate is reduced, the bulging energy consumption of the conventional pressed ventilation air duct is eliminated, the ventilation electric charge is saved, the difficult problem of ventilation in long tunnels and special long tunnel single-hole construction is solved, and the ventilation efficiency of a tunnel face is improved.
The embodiment of the utility model is realized by the following technical scheme: the utility model provides a soft economical wind channel for ventilation of tunnel long distance construction, includes the tunnel body, and the inside axial that is equipped with of tunnel body is equipped with the separator, and the separator divide into first passageway and second passageway with the tunnel body, and the end of first passageway is equipped with the baffle that seals of full coverage first passageway, and one side that the baffle is close to first passageway is equipped with axial fan, and one side that first passageway was kept away from to the baffle is equipped with the tuber pipe of impressing.
Further, the head end of the first channel is located inside or outside the tunnel body.
Further, the isolating piece is PVC polyester filament reinforced coating cloth.
Furthermore, the both sides of separator are equipped with a plurality of folding portion, and the edge of folding portion is equipped with the sealing, and the folding portion can be dismantled with the tunnel body for folding mechanism and folding portion and be connected, sealing and the lateral wall sealing connection of tunnel body.
Furthermore, a hanging ring hole is formed in the folding portion, an expansion bolt is arranged on the tunnel body, and the expansion bolt is connected with the hanging ring hole.
Further, one side of keeping away from the tunnel body of sealing portion is equipped with sealed billet, and the length of sealed billet is unanimous with the isolator, and sealed billet passes through screw connection with the tunnel body.
Furthermore, the bottom of the isolating piece is also provided with a supporting piece, and the supporting piece and the isolating piece are arranged in parallel and have the same direction; the support is used for supporting the isolation piece.
Further, support piece includes first support piece and second support piece, and first support piece is connected with the separator through self-sticking buckle, and the both ends setting of second support piece is on the lateral wall of tunnel body both sides, and first support piece sets up the top at second support piece.
Further, the first supporting member and the second supporting member are one of a steel wire rope, a rectangular pipe, a round pipe, a steel bar, a steel plate and a truss.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
1. an air inlet channel and an air outlet channel are constructed by arranging the partition pieces to solve the difficult problem of construction ventilation of a long tunnel without parallel holes;
2. only one independent tunnel is needed, and additional tunnel cooperation or independent excavation of a ventilation tunnel is not needed, so that the problem of high ventilation energy consumption of a long tunnel with parallel holes is solved;
3. the tail end of the first channel is provided with the axial flow fan and the press-in air pipe, so that the problem that fresh air quantity is insufficient when the underground cave depot engineering main body cavern is pressed in is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a first schematic structural diagram of a soft economical air duct for tunnel long-distance construction ventilation according to the present invention;
FIG. 2 is a schematic structural diagram of a second soft economical air duct for long-distance tunnel construction ventilation according to the present invention;
FIG. 3 is a schematic cross-sectional view of a soft economical air duct for ventilation in long-distance tunnel construction according to the present invention;
FIG. 4 is an enlarged view A of FIG. 3;
icon: 1-a first channel, 2-a second channel, 3-a partition, 4-an axial flow fan, 5-a pressed-in air pipe, 6-a support surface, 31-a folding part, 32-a hanging ring hole, 33-an expansion bolt, 34-a sealing part, 35-a sealing steel bar and 36-a first support piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the products of the present invention are used, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element which is referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
As shown in fig. 1 and 2, a soft economical air duct for tunnel long-distance construction ventilation comprises a tunnel body, wherein a partition 3 is axially arranged in the tunnel body, the partition 3 divides the tunnel body into a first channel 1 and a second channel 2, the first channel 1 and the second channel 2 are further vertically arranged, and the second channel 2 is kept as high as 430cm as possible for logistics; the tail end of the first channel 1 is provided with a sealing baffle plate which completely covers the first channel 1, one side of the sealing baffle plate, which is close to the first channel 1, is provided with an axial flow fan 4, one side of the sealing baffle plate, which is far away from the first channel 1, is provided with a pressed-in air duct 5, the axial flow fan 4 can be manufactured and sold by Texas Siyuan air-conditioning technology Limited company, and the air inlet amount is increased by utilizing the axial flow fan 4; specifically, the flow direction of wind is as shown in fig. 1, flows in from first passageway 1, and contact strut face 6, then flows out from second passageway 2, takes away foul gas, and whole structure does not need a plurality of tunnel cooperations, also need not be alone excavating the air intake, and convenient and fast and easy construction have improved the intake in tunnel when guaranteeing to hand over the end cost.
Further, as shown in fig. 1, the air inlet of the first passage 1 may be provided inside the tunnel body, or as shown in fig. 2, may be provided outside the tunnel body, depending on the site.
Further, in order to further ensure the construction efficiency and the cost of bottom crossing, in this embodiment, the spacer 3 is made of PVC polyester filament reinforced coating cloth; it should be noted that, in other embodiments, a steel plate may be used as the spacer 3, so that the cost is high; the PVC polyester filament reinforced coating cloth in this example is explained as follows: specifically, in this embodiment, as shown in fig. 3 and 4, two sides of the partition 3 are provided with a plurality of folding portions 31, the edge of the folding portion 31 is provided with a sealing portion 34, the folding portion 31 is a folding mechanism, and the folding portion 31 is detachably connected to the tunnel body, and the detachable connection mode includes: binding, screwing or clamping; in this embodiment, the expansion bolts 33 and the hanging ring holes 32 are matched, specifically, the folding portion 31 is provided with a plurality of hanging ring holes 32, the tunnel body is provided with a plurality of expansion bolts 33, the end portions of the expansion bolts 33 are provided with hanging buckles, and the hanging ring holes 32 are hung on the expansion bolts 33, wherein it should be noted that the more the hanging ring holes 32 are, the better the strength of the supporting surface of the whole isolation piece 3 can be ensured, and the hanging ring holes 32 are generally arranged at intervals of 1-3 m; the sealing portion 34 is connected to the side wall of the tunnel body in a sealing manner, further, the sealing portion 34 is a folding portion 31, and at the edge after folding, as shown in fig. 3, the sealing portion 34 is used for connecting the whole partition 3 to the wall of the tunnel body in a sealing manner, so as to ensure the isolation effect between the first channel 1 and the second channel 2, specifically, a sealing steel bar 35 is arranged on one side of the sealing portion 34 away from the tunnel body, the length of the sealing steel bar 35 is the same as that of the partition 3, and the sealing steel bar 35 is connected to the tunnel body through screws; the sealing portion 34 is entirely pressed against the side wall of the tunnel body by the sealing steel bar 35 for sealing.
Adopt above-mentioned PVC polyester filament reinforcing coating cloth to carry out the cover setting of separator 3, the effectual air inlet blowdown problem of solving when having guaranteed the cost, but to some great tunnels, the connected mode of single hanging ring hole 32 and expansion bolts 33 can not play sufficient support, for this reason, as shown in fig. 3, 4, still adopt following setting: the bottom of the isolating piece 3 is also provided with a supporting piece, and the supporting piece and the isolating piece 3 are arranged in parallel and have the same direction; the support is used for supporting the isolation piece 3; the supporting pieces comprise a first supporting piece 36 and a second supporting piece, the first supporting piece 36 is connected with the isolating piece 3 through a self-adhesive buckle, two ends of the second supporting piece are arranged on the side walls of two sides of the tunnel body, the first supporting piece 36 is arranged above the second supporting piece, and the second supporting piece is used for supporting the first supporting piece 36; the first support member 36 and the second support member are one of a steel wire rope, a rectangular pipe, a round pipe, a steel bar, a steel plate and a truss; preferably, the second support is a rectangular pipe, the second support is arranged at an interval of 5m, the first support 36 is a steel wire rope, the length of the steel wire rope is consistent with that of the spacer 3, the rectangular pipe is used for supporting the steel wire rope, and the steel wire rope is used for supporting the spacer 3.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a soft economical wind channel for tunnel long distance construction ventilation, includes the tunnel body, its characterized in that: the tunnel body is internally provided with a partition (3) along the axial direction, the partition (3) divides the tunnel body into a first channel (1) and a second channel (2), the tail end of the first channel (1) is provided with a baffle plate which completely covers the first channel (1), one side of the baffle plate, which is close to the first channel (1), is provided with an axial flow fan (4), and one side of the baffle plate, which is far away from the first channel (1), is provided with an air pipe (5) which is pressed in.
2. The soft economy tunnel for ventilation in long distance construction of tunnels according to claim 1, wherein the head end of the first channel (1) is located inside or outside the tunnel body.
3. The soft economical air duct for long-distance construction ventilation of tunnels according to claim 1, characterized in that the partition (3) is PVC polyester filament reinforced coating cloth.
4. The soft economical air duct for long-distance construction ventilation of tunnel according to claim 3, characterized in that, the two sides of the partition (3) are provided with a plurality of folding parts, the edge of the folding part is provided with a sealing part (34), the folding part is of a folding structure and is detachably connected with the tunnel body, and the sealing part (34) is connected with the side wall of the tunnel body in a sealing way.
5. The soft economical air duct for long-distance construction ventilation of tunnel according to claim 4, characterized in that said folded portion (31) is provided with a hanging ring hole (32), said tunnel body is provided with an expansion bolt (33), said expansion bolt (33) is connected with said hanging ring hole (32).
6. The soft economy type air duct for long distance construction ventilation of a tunnel according to claim 4, wherein a side of the sealing portion (34) away from the tunnel body is provided with a sealing steel bar (35), the sealing steel bar (35) having a length corresponding to the spacer (3), and the sealing steel bar (35) is screw-coupled to the tunnel body.
7. The soft and economical air duct for long-distance construction and ventilation of tunnel according to any of claims 5-6, characterized in that the bottom of said partition (3) is further provided with a support; the support is used for supporting the spacer (3).
8. The soft and economical air duct for long-distance construction ventilation of tunnel according to claim 7, characterized in that said support member comprises a first support member (36) and a second support member, said first support member (36) is connected with said partition member (3) by self-adhesive button, both ends of said second support member are disposed on the side wall of both sides of said tunnel body, said first support member (36) is disposed above said second support member.
9. The soft, economical air duct for long-distance construction ventilation of tunnels according to claim 8, wherein said first support member (36) and said second support member are each one of a steel wire rope, a rectangular pipe, a round pipe, a steel bar, a steel plate and a truss.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122721852.8U CN216077192U (en) | 2021-11-08 | 2021-11-08 | A soft economical wind channel for tunnel long distance construction ventilation |
| DE202022105283.2U DE202022105283U1 (en) | 2021-11-08 | 2022-09-20 | Soft, economical air duct for ventilation in long-distance construction of a tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122721852.8U CN216077192U (en) | 2021-11-08 | 2021-11-08 | A soft economical wind channel for tunnel long distance construction ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216077192U true CN216077192U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122721852.8U Active CN216077192U (en) | 2021-11-08 | 2021-11-08 | A soft economical wind channel for tunnel long distance construction ventilation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN216077192U (en) |
| DE (1) | DE202022105283U1 (en) |
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2021
- 2021-11-08 CN CN202122721852.8U patent/CN216077192U/en active Active
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2022
- 2022-09-20 DE DE202022105283.2U patent/DE202022105283U1/en active Active
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| Publication number | Publication date |
|---|---|
| DE202022105283U1 (en) | 2022-09-30 |
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