CN218991661U - Be used for underground tunnel construction to supplement ventilation equipment - Google Patents
Be used for underground tunnel construction to supplement ventilation equipment Download PDFInfo
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- CN218991661U CN218991661U CN202320156772.9U CN202320156772U CN218991661U CN 218991661 U CN218991661 U CN 218991661U CN 202320156772 U CN202320156772 U CN 202320156772U CN 218991661 U CN218991661 U CN 218991661U
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Abstract
The utility model discloses a supplementary ventilation device for underground tunnel construction, which comprises an exhaust mechanism, a gas transmission mechanism and a supporting mechanism; the exhaust mechanism comprises a connecting pipe, and a plurality of communicated air suction pipes are arranged on the outer wall of the connecting pipe; the end part of the connecting pipe is connected with an exhaust pipe, and a first exhaust fan is arranged in the exhaust pipe; the air conveying mechanism comprises an air conveying pipe, and a first air conveying fan is arranged in the air conveying pipe; the supporting mechanism comprises a supporting frame and a hydraulic device, wherein the hydraulic device is arranged on the upper surface of the supporting frame. According to the utility model, the relay main ventilation equipment is operated together by the exhaust mechanism and the fans in the air conveying mechanism, fresh air is supplemented and input to the construction working face and the polluted air in the narrow space, and the fresh air is supplemented and discharged, so that the air in the working face and the narrow space in the tunnel circularly flows, the cleaning of the construction working face and the air in the narrow space is effectively ensured, and the ventilation device has the characteristics of high ventilation working efficiency, flexible and convenient use and good working face air cleaning effect.
Description
Technical Field
The utility model relates to the technical field of underground tunnel ventilation equipment, in particular to supplementary ventilation equipment for underground tunnel construction.
Background
The construction of long and large tunnels relates to a plurality of fields, is particularly common when a new Olympic method, a shallow buried and underground excavation method and a shield method are used for carrying out underground operation, and the quality of underground air seriously affects the life and health of constructors, so that when the long and large tunnels are constructed, fresh air is continuously supplied into the tunnels to remove polluted air, sufficient oxygen is supplied, harmful gas is diluted and diluted, dust content in the air in the tunnels is reduced, the temperature and humidity in the tunnels are regulated, and the harmful substances in the tunnels are reduced to be within an allowable range harmless to human bodies, so that the ventilation equipment for underground tunnel construction is a common ventilation tool.
However, the existing known ventilation equipment for underground tunnel construction is mainly provided with ventilation equipment with enough capacity outside the tunnel, and the ventilation is carried out in the tunnel by using the air duct, so that the ventilation equipment has a certain underground ventilation effect, but in the actual working process, the air duct is a certain distance away from the tunnel face due to the blasting influence, the ventilation work efficiency of parts such as a component, a tunnel drilling working face, a narrow working face and the like is low, the ventilation effect is poor, the use is inconvenient and the like, and the physical health of civilized construction and on-site constructors is directly influenced.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The utility model aims to provide a device for supplementing ventilation in underground tunnel construction, which is characterized in that fresh air is supplemented and input to a construction working face and dirty air in a narrow space by a plurality of fans in an exhaust mechanism and a gas transmission mechanism through the common working relay main ventilation device, so that the air in the construction working face and the narrow space circularly flows, the cleaning of the air in the construction working face and the narrow space is effectively ensured, and the device has the characteristics of high ventilation working efficiency, flexible and convenient use and good cleaning effect of the air in the working face.
The utility model is realized by the following technical scheme:
a supplementary ventilation equipment for underground tunnel construction comprises an exhaust mechanism, a gas transmission mechanism and a supporting mechanism; the exhaust mechanism comprises a connecting pipe, a plurality of communicated air suction pipes are arranged on the outer wall of the connecting pipe, and the air suction pipes are fixedly connected with the connecting pipe; the end part of the connecting pipe is connected with an exhaust pipe, a first exhaust fan is arranged in the exhaust pipe, and the first exhaust fan is fixedly connected with the exhaust pipe; the air conveying mechanism comprises an air conveying pipe, a first air conveying fan is arranged in the air conveying pipe, and the outer surface of the first air conveying fan is fixedly connected with the inner surface of the air conveying pipe; the supporting mechanism comprises a supporting frame and a hydraulic device, wherein the hydraulic device is arranged on the upper surface of the supporting frame, and the upper surface of the supporting frame is fixedly connected with the lower surface of one end of the hydraulic device.
Further, the end of the connecting pipe is spliced with the end of the exhaust pipe, and the inner surface of the end of the exhaust pipe is connected with the outer surface of the end of the connecting pipe.
According to the utility model, the relay main ventilation equipment is operated together by the exhaust mechanism and the fans in the air conveying mechanism, fresh air is supplemented and input to the construction working face and the polluted air in the narrow space, and the fresh air is supplemented and discharged, so that the air in the working face and the narrow space in the tunnel circularly flows, the cleaning of the construction working face and the air in the narrow space is effectively ensured, and the ventilation device has the characteristics of high ventilation working efficiency, flexible and convenient use and good working face air cleaning effect.
According to the utility model, the first exhaust fan of the exhaust mechanism pushes ambient air to move when rotating, and according to the Bernoulli principle, the pressure intensity at the position with high flow speed is small, so that pressure difference is formed between the ambient air and the ambient air, and the ambient air is sucked into the exhaust pipe from the air suction pipe on the connecting pipe, so that dirty air in the tunnel can be sucked, the underground dirty air removal efficiency is improved, and the working efficiency is improved; in addition, fresh air is continuously input into the tunnel working area through the air conveying mechanism, the used air can be discharged through the exhaust mechanism, and underground air can flow in a circulating mode under the combined action of the air conveying mechanism and the exhaust mechanism, so that air quality is effectively guaranteed.
When the utility model is used, firstly, the height of the hydraulic press is regulated according to the actual condition of the ground of the working surface of the underground tunnel, so that the elevation of the top of the upper end of the hydraulic press is on the same horizontal plane, then, the exhaust pipe and the connecting pipe are installed, the connecting pipe is inserted into the exhaust pipe to connect each section of exhaust pipe, meanwhile, the air suction pipe on the connecting pipe is used for absorbing the external polluted air, and the air suction pipes are respectively arranged in four directions of the circumference of the connecting pipe so as to improve the efficiency of absorbing the polluted air, and then, the air delivery pipes are sequentially installed. When the device is installed and works, air with a certain flow speed is formed in the exhaust pipe, the air is communicated with outside air to form a negative pressure area, the outside air is sucked into the exhaust pipe, one end of the connecting pipe is spaced apart and is arranged in a through length mode, dirty air is effectively absorbed, the inside of the air conveying pipe is a closed space, fresh air is directly input into a working area after being sucked from the outside, the air quality of a working face is guaranteed, and the exhaust pipe and the air conveying pipe are discharged and input to achieve the air circulation flowing effect in the basement.
Further, a second exhaust fan is arranged in the exhaust pipe, and the outer surface of the second exhaust fan is fixedly connected with the inner surface of the exhaust pipe. The second exhaust fan can accelerate the air in the exhaust pipe, so that the air absorption efficiency of the air suction pipe is higher.
Further, be equipped with the blend stop on the tip inner wall of blast pipe, the blend stop can prevent that the connecting pipe from excessively inserting the blast pipe and touching the second air discharge fan and leading to the device damage.
Further, the inside second gas transmission fan that still is equipped with of gas-supply pipe, the one end of gas-supply pipe is connected with the spigot and socket pipe, spigot and socket pipe tip is pegged graft in the gas-supply pipe tip, fixedly connected with stationary blade on the second gas transmission fan makes things convenient for the installation between gas-supply pipe and the gas-supply pipe.
Further, the upper end of hydraulic pressure ware is equipped with the hydraulic stem, the upper end of hydraulic stem links there is the bearing plate, still link to have the crank on the hydraulic pressure ware, through shaking the crank, the hydraulic stem can extend, and then with bearing plate jacking one section height, realize high regulatory function.
Furthermore, the lower surface of the support frame is provided with a universal wheel, the upper surface of one end of the universal wheel is fixedly connected with the lower surface of the support frame, and further, the universal wheel is provided with a brake block.
According to the utility model, the number of the exhaust pipes and the number of the air pipes can be selected according to the actual construction condition, the exhaust pipes and the air pipes are connected in a socket connection mode, the installation and the disassembly are simple, meanwhile, the universal wheels facilitate the movement of the device, the labor intensity of workers is reduced, and after the installation position is determined, the device can be fixed by using the brake block.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. according to the auxiliary ventilation equipment for underground tunnel construction, disclosed by the embodiment of the utility model, the working face and the polluted air in the narrow space of the auxiliary ventilation equipment are subjected to auxiliary input of fresh air and external discharge through the auxiliary ventilation equipment which is operated by the exhaust mechanism and the fans in the air conveying mechanism, so that the working face and the air in the narrow space in the tunnel circularly flow, the cleaning of the working face and the air in the narrow space is effectively ensured, and the auxiliary ventilation equipment has the characteristics of high ventilation working efficiency, flexible and convenient use and good working face air cleaning effect;
2. according to the supplementary ventilation equipment for underground tunnel construction, provided by the embodiment of the utility model, when the first exhaust fan of the exhaust mechanism rotates, ambient air is pushed to move to form pressure difference, dirty air in a tunnel can be sucked and discharged, and meanwhile, the first exhaust fan and the second exhaust fan can jointly act, so that the underground dirty air discharging efficiency is improved, and the working efficiency is improved;
3. according to the supplementary ventilation equipment for underground tunnel construction, provided by the embodiment of the utility model, the air conveying mechanism continuously inputs fresh air into the working area, the used air is discharged through the exhaust mechanism, and the air conveying mechanism and the exhaust mechanism work together to enable underground air to flow circularly, so that the air quality is effectively ensured;
4. the supplementary ventilation equipment for underground tunnel construction provided by the embodiment of the utility model has the advantages of high ventilation work efficiency, convenience in use and good ventilation effect of the working face.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the exhaust mechanism according to the first aspect of the present utility model;
FIG. 3 is a schematic view of the exhaust mechanism of the present utility model from a second perspective;
FIG. 4 is a schematic view of a first view of a gas delivery mechanism according to the present utility model;
FIG. 5 is a schematic diagram of a second view of the gas delivery mechanism according to the present utility model;
fig. 6 is a schematic structural view of the supporting mechanism in the present utility model.
In the drawings, the reference numerals and corresponding part names:
100-exhaust mechanism, 101-connecting pipe, 102-air suction pipe, 103-exhaust pipe, 104-first exhaust fan, 105-second exhaust fan, 106-barrier strip, 200-gas transmission mechanism, 201-gas transmission pipe, 202-first gas transmission fan, 203-second gas transmission fan, 204-socket pipe, 205-stationary blade, 300-supporting mechanism, 301-supporting frame, 302-hydraulic press, 303-hydraulic rod, 304-crank, 305-universal wheel, 306-brake block, 307-bearing plate.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, it will be apparent to one of ordinary skill in the art that: no such specific details are necessary to practice the utility model. In other instances, well-known structures have not been described in detail in order to avoid obscuring the present utility model.
Throughout the specification, references to "one embodiment," "an embodiment," "one example," or "an example" mean: a particular feature, structure, or characteristic described in connection with the embodiment or example is included within at least one embodiment of the utility model. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present utility model, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.
Examples
As shown in fig. 1 to 6, the embodiment of the utility model provides a supplementary ventilation device for underground tunnel construction, which comprises an exhaust mechanism 100, a gas transmission mechanism 200 and a supporting mechanism 300; the exhaust mechanism 100 comprises a connecting pipe 101, wherein a plurality of communicated air suction pipes 102 are arranged on the outer wall of the connecting pipe 101 and are fixedly connected with the connecting pipe; an exhaust pipe 103 is connected to the end of the connecting pipe 101, a first exhaust fan 104 is arranged in the exhaust pipe 103, and the first exhaust fan is fixedly connected with the exhaust pipe; the gas transmission mechanism 200 comprises a gas transmission pipe 201, wherein a first gas transmission fan 202 is arranged in the gas transmission pipe 201, and the outer surface of the first gas transmission fan is fixedly connected with the inner surface of the gas transmission pipe; the supporting mechanism 300 comprises a supporting frame 301 and a hydraulic device 302, wherein the hydraulic device 302 is arranged on the upper surface of the supporting frame 301, the upper surface of the supporting frame 301 is fixedly connected with the lower surface of one end of the hydraulic device 302, the end of the connecting pipe 101 is inserted into the end of the exhaust pipe 103, and the inner surface of the end of the exhaust pipe 103 is connected with the outer surface of the end of the connecting pipe 101.
According to the utility model, the relay main ventilation equipment is operated together by the exhaust mechanism and the fans in the air conveying mechanism, fresh air is supplemented and input to the construction working face and the polluted air in the narrow space, and the fresh air is supplemented and discharged, so that the air in the working face and the narrow space in the tunnel circularly flows, the cleaning of the construction working face and the air in the narrow space is effectively ensured, and the ventilation device has the characteristics of high ventilation working efficiency, flexible and convenient use and good working face air cleaning effect.
According to the utility model, the first exhaust fan of the exhaust mechanism pushes ambient air to move when rotating, and according to the Bernoulli principle, the pressure intensity at the position with high flow speed is small, so that pressure difference is formed between the ambient air and the ambient air, and the ambient air is sucked into the exhaust pipe from the air suction pipe on the connecting pipe, so that dirty air in the tunnel can be sucked, the underground dirty air removal efficiency is improved, and the working efficiency is improved; in addition, fresh air is continuously input into the tunnel working area through the air conveying mechanism, the used air can be discharged through the exhaust mechanism, and underground air can flow in a circulating mode under the combined action of the air conveying mechanism and the exhaust mechanism, so that air quality is effectively guaranteed.
Further, a second exhaust fan 105 is further disposed inside the exhaust pipe 103, and an outer surface of the second exhaust fan is fixedly connected with an inner surface of the exhaust pipe. The second exhaust fan can accelerate the air in the exhaust pipe, so that the air absorption efficiency of the air suction pipe is higher.
Further, a barrier strip 106 is disposed on the inner wall of the end portion of the exhaust pipe 103, and the barrier strip can prevent the connection pipe from being excessively inserted into the exhaust pipe to touch the second exhaust fan, so that the device is damaged.
Further, a second air-conveying fan 203 is further arranged inside the air-conveying pipe 201, one end of the air-conveying pipe 201 is connected with a spigot and socket pipe 204, the end of the spigot and socket pipe 204 is inserted into the end of the air-conveying pipe 201, and a fixing piece 205 is fixedly connected to the second air-conveying fan 203, so that installation between the air-conveying pipe 201 and the air-conveying pipe 201 is facilitated.
Further, the upper end of the hydraulic device 302 is provided with a hydraulic rod 303, the upper end of the hydraulic rod 303 is connected with a bearing plate 307, the hydraulic device 302 is also connected with a crank 304, and the hydraulic rod can extend through shaking the crank, so that the bearing plate is lifted by one height, and the height adjusting function is realized.
Further, the lower surface of the supporting frame 301 is provided with a universal wheel 305, an upper surface of one end of the universal wheel 305 is fixedly connected with the lower surface of the supporting frame 301, and further, a brake pad 306 is installed on the universal wheel 305.
According to the utility model, the number of the exhaust pipes and the number of the air pipes can be selected according to the actual construction condition, the exhaust pipes and the air pipes are connected in a socket connection mode, the installation and the disassembly are simple, meanwhile, the universal wheels facilitate the movement of the device, the labor intensity of workers is reduced, and after the installation position is determined, the device can be fixed by using the brake block.
When the utility model is used, firstly, the height of a hydraulic rod 303 on a hydraulic device 302 is adjusted according to the actual condition of the ground of an underground tunnel working surface, so that the top elevation of the hydraulic rod 303 is on the same horizontal plane, then an exhaust pipe 103 and a connecting pipe 101 are installed, the connecting pipe 101 is inserted into the exhaust pipe 103, each section of the exhaust pipe 103 is connected in sequence, meanwhile, an air suction pipe 102 on the connecting pipe 101 is used for absorbing external polluted air, the air suction pipe 102 is arranged in four directions in the circumferential direction of the connecting pipe 101 so as to improve the efficiency of absorbing polluted air, and then an air delivery pipe is installed in sequence; when the device is installed and works, air with a certain flow rate is formed inside the exhaust pipe 103, the air is communicated with outside air to form a negative pressure area, the outside air is sucked into the exhaust pipe, the connecting pipe 101 is arranged at one end at intervals and in a through length mode, dirty air is effectively absorbed, the inside of the air conveying pipe 201 is a closed space, fresh air is directly input into a working area after being sucked from the outside, the air quality of a working surface is guaranteed, and the exhaust pipe 103 and the air conveying pipe 201 are discharged and input to achieve an air circulation flow effect in a basement.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The supplementary ventilation equipment for the construction of the underground tunnel is characterized by comprising an exhaust mechanism (100), a gas transmission mechanism (200) and a supporting mechanism (300);
the exhaust mechanism (100) comprises a connecting pipe (101), and a plurality of communicated air suction pipes (102) are arranged on the outer wall of the connecting pipe (101); an exhaust pipe (103) is connected to the end part of the connecting pipe (101), and a first exhaust fan (104) is arranged in the exhaust pipe (103);
the gas transmission mechanism (200) comprises a gas transmission pipe (201), and a first gas transmission fan (202) is arranged in the gas transmission pipe (201);
the supporting mechanism (300) comprises a supporting frame (301) and a hydraulic device (302), wherein the hydraulic device (302) is arranged on the upper surface of the supporting frame (301), and the upper surface of the supporting frame (301) is fixedly connected with the lower surface of one end of the hydraulic device (302) and used for installing and supporting the exhaust mechanism (100) and the gas transmission mechanism (200).
2. The supplementary ventilation device for underground tunnel construction according to claim 1, wherein the exhaust pipe (103) is further provided with a second exhaust fan (105) inside.
3. The supplementary ventilation device for underground tunnel construction according to claim 1, wherein the end of the connection pipe (101) is inserted into the end of the exhaust pipe (103), and the inner surface of the end of the exhaust pipe (103) is connected to the outer surface of the end of the connection pipe (101).
4. A supplemental ventilation device for underground tunnel construction according to claim 3, characterized in that the end inner wall of the exhaust pipe (103) is provided with a barrier strip (106).
5. The supplementary ventilation device for underground tunnel construction according to claim 1, wherein the second air conveying fan (203) is further arranged inside the air conveying pipe (201), one end of the air conveying pipe (201) is connected with a socket pipe (204), and the end part of the socket pipe (204) is inserted into the end part of the air conveying pipe (201).
6. The supplementary ventilation device for underground tunnel construction according to claim 5, wherein the second air-conveying fan (203) is provided with a fixing piece (205).
7. The supplementary ventilation device for underground tunnel construction according to claim 1, wherein the hydraulic rod (303) is disposed at the upper end of the hydraulic device (302), and the bearing plate (307) is connected to the upper end of the hydraulic rod (303).
8. The supplementary ventilation device for underground tunnel construction according to claim 7, wherein a crank (304) is further connected to the hydraulic device (302).
9. The supplementary ventilation device for underground tunnel construction according to claim 1, wherein the lower surface of the supporting frame (301) is provided with a universal wheel (305), and the upper surface of one end of the universal wheel (305) is fixedly connected with the lower surface of the supporting frame (301).
10. A supplemental ventilation device for underground tunnel construction according to claim 9, characterized in that the universal wheel (305) is provided with a brake pad (306).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156772.9U CN218991661U (en) | 2023-02-08 | 2023-02-08 | Be used for underground tunnel construction to supplement ventilation equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320156772.9U CN218991661U (en) | 2023-02-08 | 2023-02-08 | Be used for underground tunnel construction to supplement ventilation equipment |
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| CN218991661U true CN218991661U (en) | 2023-05-09 |
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| CN202320156772.9U Active CN218991661U (en) | 2023-02-08 | 2023-02-08 | Be used for underground tunnel construction to supplement ventilation equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117345317A (en) * | 2023-10-25 | 2024-01-05 | 中交一公局集团有限公司 | High-efficiency oxygen supply ventilation system based on high-altitude tunnel construction and use method |
-
2023
- 2023-02-08 CN CN202320156772.9U patent/CN218991661U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117345317A (en) * | 2023-10-25 | 2024-01-05 | 中交一公局集团有限公司 | High-efficiency oxygen supply ventilation system based on high-altitude tunnel construction and use method |
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