CN210068224U - Unpowered ventilation device and tunnel - Google Patents
Unpowered ventilation device and tunnel Download PDFInfo
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- CN210068224U CN210068224U CN201920088475.9U CN201920088475U CN210068224U CN 210068224 U CN210068224 U CN 210068224U CN 201920088475 U CN201920088475 U CN 201920088475U CN 210068224 U CN210068224 U CN 210068224U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to the technical field of ventilation of mines or tunnels, and provides an unpowered ventilation device and a tunnel which comprise a ventilation pipeline and a blast component, wherein the ventilation pipeline is provided with a first air port and a second air port; the air blowing assembly comprises a first rotating fan and a second rotating fan, the first rotating fan is arranged in an inner cavity of the ventilation pipeline, the fan direction of the first rotating fan is along the extending direction of the ventilation pipeline, the second rotating fan is arranged outside the ventilation pipeline, and the first rotating fan is in transmission connection with the second rotating fan; a one-way mechanism is arranged in a transmission link from the first rotating fan to the second rotating fan. Under one-way mechanism's restriction, the fan wind direction of first rotating fan is fixed, makes the air pipe's air current flow direction unified then, avoids the air current direction in the air pipe to appear relapseing, guarantees that the air current direction in the air pipe is stable, is favorable to increasing the air current flow in the air pipe in the unit interval, and then promotes air pipe's air exchange capacity.
Description
Technical Field
The utility model belongs to the technical field of the ventilation technique in mine or tunnel and specifically relates to a unpowered ventilation unit and tunnel are related to.
Background
The air quality in the inner cavity of the tunnel body can be seriously influenced by the air retention in the tunnel body, the health of passing personnel is unfavorable, especially some long and narrow tunnel bodies go deeper into the inner cavity of the tunnel body, the less the air exchange between the air in the inner cavity of the tunnel body and the atmosphere outside the tunnel body is, and the worse the air quality in the inner cavity of the tunnel body is.
In order to solve the problems, various ventilation devices are provided in the prior art, however, most of the existing ventilation devices rely on an external electric power driven fan to ventilate a tunnel body, and the ventilation mode has huge power consumption all the year round, improves the expense on traffic operation, and has poor economical efficiency; and some ventilation devices are not additionally provided with external force drive, and the ventilation capability of the ventilation devices is very weak, so that the ventilation requirements of the tunnel body cannot be met.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide an unpowered ventilation device with good economical efficiency and excellent ventilation performance.
In order to achieve the purpose, the unpowered ventilation device provided by the utility model comprises a ventilation pipeline and a blowing component, wherein the ventilation pipeline is provided with a first air port and a second air port; the air blowing assembly comprises a first rotating fan and a second rotating fan, the first rotating fan is arranged in an inner cavity of the ventilation pipeline, the fan direction of the first rotating fan is along the extending direction of the ventilation pipeline, the second rotating fan is arranged outside the ventilation pipeline, and the first rotating fan is in transmission connection with the second rotating fan; a one-way mechanism is arranged in a transmission link from the first rotating fan to the second rotating fan, and limits the fan direction of the first rotating fan.
Therefore, the utility model discloses a to unpowered ventilation unit's setting and structural design, through locating the first rotating fan in air pipe and locating the transmission connection of the second rotating fan outside air pipe, the second rotating fan is rotatory under the drive of air current outside air pipe like this, then drives the rotation of first rotating fan, and the gas in the air pipe flows under the rotatory fanning of first rotating fan, then realizes the purpose that the gas in the air pipe is flowed just to the promotion of no external power; however, since both the magnitude and direction of the airflow outside the ventilation duct may be unstable, the second rotary fan may sometimes rotate in the forward direction and sometimes rotate in the reverse direction; the first rotating fan is sometimes fanned in the forward direction and sometimes fanned in the reverse direction; therefore, the one-way mechanism is arranged, the fan direction of the first rotating fan is fixed under the limitation of the one-way mechanism, then the airflow direction of the ventilation pipeline is unified, the repetition of the airflow direction in the ventilation pipeline is avoided, the stability of the airflow direction in the ventilation pipeline is ensured, the airflow flow in the ventilation pipeline in unit time is favorably increased, and the ventilation capacity of the ventilation pipeline is improved.
Preferably, the one-way mechanism includes a ratchet mechanism or a one-way bearing, and the ratchet mechanism or the one-way bearing is mounted on the rotating shaft in the transmission link from the first rotating fan to the second rotating fan.
Therefore, the rotating shaft provided with the ratchet mechanism or the one-way bearing can limit the rotating direction of the rotating shaft through the ratchet mechanism or the one-way bearing, and then limit the rotating direction of the first rotating fan through the transmission of the transmission link, so that the function of limiting the fan direction of the first rotating fan is realized.
Another preferred scheme is that the air blowing assembly further comprises a transmission shaft, the transmission shaft can rotatably penetrate through the side wall of the ventilation pipeline along the extending direction perpendicular to the ventilation pipeline, a first bevel gear is arranged on a rotating shaft of the first rotating fan, a second bevel gear is arranged at one end of the transmission shaft, which is positioned in the inner cavity of the ventilation pipeline, and the first bevel gear and the second bevel gear are in meshing transmission; one end of the transmission shaft, which is positioned outside the ventilation pipeline, is in transmission connection with the second rotating fan.
It is from top to bottom visible, the transmission shaft rotationally wears to locate on the lateral wall of air pipe along the extending direction of perpendicular to air pipe, is convenient for will install the rotatory fan of first in air pipe and install the rotatory fan transmission connection of second outside air pipe through the transmission shaft.
Still preferably, the fan further comprises a ventilation protection cover, and the second rotary fan is located in the ventilation protection cover.
As can be seen from the above, if the second rotary fan is exposed outside the ventilation duct, the second rotary fan may be damaged by a bird or a floating object colliding with the second rotary fan under the influence of the airflow; therefore, the ventilation protective cover is arranged, and the second rotating fan can be protected from being hit by flying birds or floaters through the ventilation protective cover.
Still another preferred scheme is that the unpowered ventilation device further comprises a first filter screen, and the first filter screen covers the first air opening; and/or the unpowered ventilation device further comprises a second filter screen, and the second filter screen covers the second air opening.
It is from top to bottom visible, the setting of first filter screen and second filter screen can effectively avoid the solid-state debris of great volume to enter into air pipe through first wind gap and second wind gap in, avoid these solid-state debris to influence the operation of first rotating fan, also avoid these solid-state debris to block up air pipe.
Still another preferred scheme is that the air blowing assemblies are arranged into at least two groups, each group of air blowing assemblies is distributed along the extending direction of the ventilating duct, and the fan directions of the first rotating fans are the same along the extending direction of the ventilating duct under the action of the one-way mechanism.
It is thus clear that the fan wind direction of first rotating fan is the same among each group of air-blast subassembly, makes each first rotating fan form the stack effect to the air current in the air pipe, and the group number that sets up the air-blast subassembly is more, is favorable to promoting the circulation rate of air current in the air pipe more, is favorable to promoting air pipe's air exchange efficiency.
In order to solve the above problem, another object of the present invention is to provide a tunnel with good economical efficiency and excellent ventilation performance.
In order to realize the above object, the utility model provides a tunnel includes tunnel body and aforementioned unpowered ventilation unit, and air pipe arranges along the extending direction of tunnel body, and first wind gap is located the tunnel body outside, and the second wind gap is located the inner chamber of tunnel body, and the second rotating fan is located the inner chamber of tunnel body, and the wind direction of second rotating fan is along the extending direction of tunnel body.
As can be seen from the above, since the tunnel body is generally a long and narrow space, the more the position in the long and narrow space of the tunnel body near the exit of the tunnel body, the more the exchange between the gas and the gas outside the tunnel body, and the more the position away from the exit of the tunnel body, the less the exchange between the gas and the gas outside the tunnel body; resulting in poorer gas quality at locations in the lumen of the tunnel body further from the outlet; under the influence of temperature difference, traffic flow and air flow outside the tunnel body, air flow along the extension direction of the tunnel body is easily formed in the inner cavity of the tunnel body, but the air flow is not enough to drive the air in the deep part of the tunnel body to exchange with the air outside the tunnel body; in the prior art, an external electric power driving fan is adopted for ventilating the tunnel body, so that the exchange of external gas in the inner cavity of the tunnel body can be effectively promoted, and the quality of gas in the inner cavity of the tunnel body can be effectively improved, however, the mode has huge power consumption, is easy to cause the damage of electric equipment after long-term use, and has limited application range; therefore, the unpowered ventilation device is arranged for the tunnel body, the first rotating fan is arranged in the ventilation pipeline, the second rotating fan is arranged outside the ventilation pipeline but positioned in the inner cavity of the tunnel body, the first rotating fan is in transmission connection with the second rotating fan, the second rotating fan is driven by the airflow in the inner cavity of the tunnel body to rotate so as to drive the first rotating fan to rotate, the first rotating fan fans the air in the ventilation pipeline to form airflow, so that the air in the inner cavity of the tunnel body can be exchanged with the air outside the tunnel body through the ventilation pipeline, the wind receiving direction of the second rotating fan is along the extending direction of the tunnel body, the second rotating fan can better rotate along the airflow in the extending direction of the tunnel body, the rotating speeds of the second rotating fan and the first rotating fan are convenient to increase, and the fan speed of the first rotating fan is increased, promote the air current rate in the air pipe, promote the gaseous exchange rate in the inner chamber of tunnel body, and under one-way mechanism's restriction, the fan wind direction of first rotating fan is fixed, then make air pipe's air current flow direction unified, avoid the air current direction in the air pipe to appear relapseing, guarantee that the air current direction in the air pipe is stable, be favorable to increasing the air current flow in the air pipe in the unit interval, and then promote air pipe's air exchange capacity.
The air inlet of the first rotating fan is communicated with the air inlet of the second rotating fan, and the air inlet of the first rotating fan is communicated with the air inlet of the second rotating fan.
Therefore, the utility model discloses in mainly come the exchange of external gas in the inner chamber of acceleration tunnel body through two kinds of modes, realize the purpose that the air current improves in the inner chamber of tunnel body, one kind is for the gas that the quality is relatively poor that gathers tunnel body inner chamber is bloated out of tunnel body through the air-blast subassembly, another kind is for the fresh air outside tunnel body is bloated into tunnel body inner chamber through the air-blast subassembly; the technical proposal adopts a mode of blowing the gas with poor quality in the inner cavity of the tunnel body out of the tunnel body, the air flow in the ventilation pipeline is limited to flow towards the direction outside the tunnel body to extract the gas with poor quality at the outlet of the tunnel body far away from the tunnel body in real time, so that the quality of the gas in the tunnel body is improved, however, the air flow outside the tunnel body can blow the gas into the ventilation pipeline through the first air port, the collision is formed between the gas blown from the outside of the tunnel body and the gas led out from the inner cavity of the tunnel body, and the gas is not beneficial to the discharge of the gas in the inner cavity of the tunnel body, consequently set up the deep bead, the deep bead can avoid this external air current of tunnel directly to blow to first wind gap, reduces this external air current of tunnel and to the influence of the air current in the air pipe, is favorable to unpowered ventilation unit smoothly with the relatively poor gas outgoing of quality in the inner chamber of tunnel body.
Another preferred scheme is that the air blowing assemblies are arranged into at least two groups, each group of air blowing assemblies is distributed along the extending direction of the ventilating duct, and the fan directions of the first rotating fans are the same along the extending direction of the ventilating duct under the action of the one-way mechanism; the extending direction of the tunnel body comprises a first direction and a second direction which are opposite to each other, one part of the second rotating fans rotate along with the airflow in the first direction, and the other part of the second rotating fans rotate along with the airflow in the second direction.
It is from top to bottom visible, set up partly second rotating fan to the air current rotation of following the first direction, set up the second rotating fan of another part to the air current rotation of following the second direction, no matter what direction of the air current in the inner chamber of tunnel body like this, the air current direction in the air pipe can not change, be convenient for air pipe continuously for supplying fresh air in the inner chamber of tunnel body or continuously take out the gas of the relatively poor quality in the inner chamber of tunnel body outside the tunnel body, be convenient for realize the stable improvement of air quality in the inner chamber of tunnel body.
In order to solve the above problems, it is a third object of the present invention to provide a tunnel with good economical efficiency and excellent ventilation performance.
In order to achieve the above object, the tunnel provided by the present invention comprises a tunnel body and at least two sets of the above unpowered ventilation devices, each ventilation duct is arranged along the extending direction of the tunnel body, and each ventilation duct communicates the inner cavity of the tunnel body with the external environment of the tunnel body; each second rotating fan is positioned in the inner cavity of the tunnel body, and the fan direction of each second rotating fan is along the extending direction of the tunnel body; in one part of the unpowered ventilation device, a first rotating fan fans air from the outside of the tunnel body to the direction in the inner cavity of the tunnel body; in the other part of the unpowered ventilation device, the first rotating fan fans the air from the inner cavity of the tunnel body to the direction outside the tunnel body.
As can be seen from the above, by adopting the unpowered ventilation device, the fan direction of the first rotating fan is fixed under the limitation of the one-way mechanism, so that the airflow direction of the ventilation duct is uniform, the airflow direction in the ventilation duct is prevented from being repeated, the airflow direction in the ventilation duct is ensured to be stable, the airflow flow in the ventilation duct in unit time is increased, and the ventilation capability of the ventilation duct is improved; in addition, the unpowered ventilation device of a part takes out the gas of the relatively poor quality in the inner chamber of tunnel body outside this body of tunnel, the unpowered ventilation device of another part supplements this external fresh air of tunnel to the inner chamber of tunnel body, can discharge the relatively poor gas of quality in real time in the inner chamber of messenger's tunnel body, can supplement fresh air in real time again, the gaseous exchange that can realize with this external gas of tunnel through the ventilation device of difference in the inner chamber that makes the tunnel body, be favorable to promoting the air quality in the inner chamber of tunnel body more.
Drawings
FIG. 1 is a schematic view of the unpowered ventilation device of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a schematic view of the tunnel of the present invention.
Detailed Description
Unpowered ventilation unit embodiment:
referring to fig. 1 and 2, the unpowered ventilation device of the present embodiment includes a ventilation duct 1 and a blower assembly 2, wherein the ventilation duct 1 is provided with a first air opening 101 and a second air opening 102; the blowing assembly 2 comprises a first rotating fan 201 and a second rotating fan 202, the first rotating fan 201 is installed in the inner cavity of the ventilation duct 1, the fan direction of the first rotating fan 201 faces the extending direction of the ventilation duct 1, the second rotating fan 202 is installed outside the ventilation duct 1, and the first rotating fan 201 is in transmission connection with the second rotating fan 202; a one-way mechanism (not shown) is disposed in a transmission link from the first rotary fan 201 to the second rotary fan 202, and the one-way mechanism limits a fan direction of the first rotary fan 201. The first rotating fan 201 arranged in the ventilation pipeline 1 is in transmission connection with the second rotating fan 202 arranged outside the ventilation pipeline 1, so that the second rotating fan 202 is driven by airflow outside the ventilation pipeline 1 to rotate, the first rotating fan 201 is driven to rotate, the air in the ventilation pipeline 1 flows under the rotating fan action of the first rotating fan 201, and the purpose of blowing the air in the ventilation pipeline 1 without external power is achieved; however, since both the magnitude and direction of the airflow outside the ventilation duct 1 may be unstable, the second rotating fan 202 may sometimes rotate in the forward direction and sometimes rotate in the reverse direction; this in turn causes the first rotary fan 201 to sometimes fan in a forward direction and sometimes in a reverse direction; therefore, the one-way mechanism is arranged, the fan direction of the first rotating fan 201 is fixed under the limitation of the one-way mechanism, then the airflow direction in the ventilation pipeline 1 is unified, the repetition of the airflow direction in the ventilation pipeline 1 is avoided, the stability of the airflow direction in the ventilation pipeline 1 is ensured, the airflow flow in the ventilation pipeline 1 in unit time is favorably increased, and the ventilation capacity of the ventilation pipeline 1 is improved.
Regarding the fan direction of the first rotating fan 201, the fan direction is set to be along the extending direction of the ventilation duct 1, the extending direction of the ventilation duct 1 includes two specific directions, and it is only necessary that the fan direction of the first rotating fan 201 faces one of the two directions and deviates from the other direction.
It should be noted that the direction of the fan of the first rotating fan 201 along the extending direction of the ventilation duct 1 does not mean that the direction of the fan of the first rotating fan 201 needs to be parallel to the extending direction of the ventilation duct 1, but means that the airflow can flow along the extending direction of the ventilation duct 1 when the first rotating fan 201 fans; of course, it is preferable that the fan direction of the first rotating fan 201 is parallel to the extending direction of the ventilation duct 1, that is, the rotation axis of the first rotating fan 201 is parallel to the extending direction of the ventilation duct 1, so that the airflow can more rapidly flow along the extending direction of the ventilation duct 1 when the first rotating fan 201 is fanned.
With regard to the driving connection of the first rotating fan 201 and the second rotating fan 202 of the blower assembly 2, it can be provided as follows: the air blowing component 2 is additionally provided with a first bevel gear 207, a second bevel gear 208, a third bevel gear 209, a fourth bevel gear 210 and a transmission shaft 205, the transmission shaft 205 is rotatably arranged on the side wall of the ventilation duct 1 in a penetrating way along the extending direction vertical to the ventilation duct 1, the first bevel gear 207 is arranged on a rotating shaft 204 of a first rotating fan 201, the second bevel gear 208 is arranged at one end of the transmission shaft 205 positioned in the inner cavity of the ventilation duct 1, and the first bevel gear 207 and the second bevel gear 208 are in meshing transmission; the third bevel gear 209 is disposed on the rotating shaft 206 of the second rotating fan 202, the fourth bevel gear 210 is disposed at one end of the transmission shaft 205 outside the ventilation duct 1, and the third bevel gear 209 and the fourth bevel gear 210 are in gear engagement transmission, so that the second rotating fan 202 can be driven to rotate when the second rotating fan 202 rotates. The transmission shaft 205 is rotatably disposed through the sidewall of the ventilation duct 1 along the extending direction perpendicular to the ventilation duct 1, so that the first rotating fan 201 installed inside the ventilation duct 1 and the second rotating fan 202 installed outside the ventilation duct 1 are connected in a transmission manner through the transmission shaft 205.
As for the specific structure of the one-way mechanism, a ratchet mechanism or a one-way bearing may be employed, which is mounted on the rotating shaft in the transmission link of the first rotating fan 201 to the second rotating fan 202. The rotation shaft provided with the ratchet mechanism or the one-way bearing can limit the rotation direction of the rotation shaft through the ratchet mechanism or the one-way bearing, and then limit the rotation direction of the first rotating fan 201 through the transmission of the transmission link, thereby realizing the function of limiting the fan direction of the first rotating fan 201.
As for the specific installation position of the one-way mechanism, the one-way mechanism may be installed on the rotation shaft of the first rotating fan 201, may be installed on the rotation shaft of the second rotating fan 202, or may be installed on the transmission shaft 205, and as long as the one-way mechanism can limit one of the rotation shaft of the first rotating fan 201, the rotation shaft of the second rotating fan 202, or the transmission shaft 205, the one-way mechanism can limit the rotation direction of the first rotating fan 201, and thus, the fan direction of the first rotating fan 201 is limited.
Regarding the installation of the first rotating fan 201, a bracket 203 arranged along the cross section may be connected to the inner wall of the ventilation duct 1, the bracket 203 is composed of two spokes, the two spokes cross each other on the center of the cross section of the ventilation duct 1, and the first rotating fan 201 is rotatably installed at the crossing position of each spoke. The first rotating fan 201 is installed by spokes crossing the cross section of the ventilation duct 1, so that the first rotating fan 201 can be installed in the ventilation duct 1; each spoke crosses the center of the cross section of the ventilation duct 1, and the first rotating fan 201 is installed at the crossing position of each spoke, so that the distance from the first rotating fan 201 to each position of the ventilation duct wall is equivalent, the first rotating fan 201 is convenient to install and use, and the first rotating fan 201 with larger size is also convenient to adopt; in addition, the arrangement of the spokes has little influence on the ventilation performance of the ventilation duct 1. Of course, the number of spokes may be more than two or less than two.
Preferably, a ventilation protection cover 211 is further included, and the second rotary fan 202 is located within the ventilation protection cover 211. Since the second rotating fan 202 is located outside the ventilation duct 1, if the second rotating fan 202 is exposed to the environment outside the ventilation duct 1, birds or floating objects may collide with the second rotating fan 202 under the influence of the airflow, thereby damaging the second rotating fan 202; therefore, the ventilation protector 211 is provided, and the second rotating fan 202 can be protected from the collision of flying birds or floating objects by the ventilation protector 211.
Preferably, the unpowered ventilation device further comprises a first filter screen 3, and the first filter screen 3 covers the first air port 101; the unpowered ventilation device further comprises a second filter 4, and the second filter 4 covers the second air opening 102. The arrangement of the first filter screen 3 and the second filter screen 4 can effectively prevent solid impurities with large volume from entering the ventilation duct 1 through the first air opening 101 and the second air opening 102, prevent the solid impurities from influencing the operation of the first rotating fan 201, and prevent the solid impurities from blocking the ventilation duct 1.
Preferably, the air blowing assemblies 2 are provided in at least two groups, each group of air blowing assemblies 2 is distributed along the extending direction of the ventilation duct 1, and the fan direction of each first rotating fan 201 is the same along the extending direction of the ventilation duct 1 under the action of the one-way mechanism. The fan direction of the first rotating fans 201 in each group of the air blowing assemblies 2 is the same, so that the first rotating fans 201 form a superposition effect on the air flow in the ventilation pipeline 1, and the more groups of the air blowing assemblies 2 are arranged, the better the circulation rate of the air flow in the ventilation pipeline 1 is promoted, and the better the ventilation efficiency of the ventilation pipeline 1 is promoted. It should be noted that the same fan direction of the first rotating fans 201 does not necessarily mean that the first rotating fans 201 fan in the same direction, but means that the airflow in the ventilation duct 1 that the first rotating fans 201 fan flows in the same direction along the ventilation duct 1.
It should be noted that, in the same blower assembly 2, one first rotating fan 201 may be correspondingly installed with one second rotating fan 202, and also multiple second rotating fans 202 may be correspondingly installed, and since the airflow direction outside the ventilation duct 1 may be unstable, multiple second rotating fans 202 with different wind receiving directions are provided, so that the blower assembly 2 can normally operate in different wind directions. For example, two second rotating fans 202 with opposite wind directions are installed in the same blower assembly 2, and the two second rotating fans 202 can rotate along with the airflows in two different directions, so that the blower assembly 2 can operate normally under the airflows in the two different directions.
Certainly, the wind receiving directions of the second rotating fans 202 in the air blowing assemblies 2 can also be set to be different, so that the corresponding second rotating fans 202 can rotate along with the airflow outside the ventilation duct 1 in various wind directions, and the airflow inside the ventilation duct 1 can be driven to flow rapidly in the same direction through the different air blowing assemblies 2 no matter where the airflow outside the ventilation duct 1 faces, thereby being beneficial to the continuous and stable operation of an unpowered device.
The first embodiment of the tunnel:
referring to fig. 3, the tunnel of the present embodiment includes a tunnel body 6 and the unpowered ventilation device described above, the ventilation duct 1 is arranged along the extending direction of the tunnel body 6, the first air opening 101 is located outside the tunnel body 6, the second air opening 102 is located in the inner cavity of the tunnel body 6, the second rotating fan 202 is located in the inner cavity of the tunnel body 6, and the wind receiving direction of the second rotating fan 202 is along the extending direction of the tunnel body 6. Since the tunnel body 6 is generally a long and narrow space, the more the position in the long and narrow space of the tunnel body 6 near the exit of the tunnel body 6, the more the gas exchanges with the gas outside the tunnel body 6, and the more the position away from the exit of the tunnel body 6, the less the gas exchanges with the gas outside the tunnel body 6; resulting in poorer gas quality at locations in the inner cavity of the tunnel body 6 further from the outlet; under the influence of temperature difference, traffic flow and air flow outside the tunnel body 6, air flow along the extending direction of the tunnel body 6 is easily formed in the inner cavity of the tunnel body 6, however, the air flow is not enough to drive the air in the inner cavity of the tunnel body 6 to exchange with the atmosphere outside the tunnel body 6; in the prior art, an external electric power driving fan is adopted to ventilate the tunnel body 6, so that the exchange of external gas in the inner cavity of the tunnel body 6 can be effectively promoted, and the quality of gas in the inner cavity of the tunnel body 6 can be effectively improved, however, the mode has huge power consumption, is easy to cause the damage of electric equipment after long-term use, and has limited application range; therefore, the unpowered ventilation device is provided for the tunnel body 6, the first rotating fan 201 is installed in the ventilation duct 1, the second rotating fan 202 is installed in the inner cavity of the tunnel body 6, and the first rotating fan 201 is in transmission connection with the second rotating fan 202, the second rotating fan 202 is driven by the airflow in the inner cavity of the tunnel body 6 to rotate, so as to drive the first rotating fan 201 to rotate, the first rotating fan 201 fans the air in the ventilation duct 1 to form airflow, so that the air far away from the outlet of the tunnel body 6 can be exchanged with the air outside the tunnel body 6 through the ventilation duct 1, the wind receiving direction of the second rotating fan 202 is set to be the extending direction of the tunnel body 6, the second rotating fan 202 can rotate along with the airflow in the extending direction of the tunnel body 6, the rotating speeds of the second rotating fan 202 and the first rotating fan 201 are convenient to increase the fan speed of the first rotating fan 201, the air flow rate in the ventilation pipeline 1 is improved, and the exchange rate of the outside air in the inner cavity of the tunnel body 6 is improved.
As for the wind receiving direction of the second rotating fan 202, that is, the direction of the airflow that the second rotating fan 202 can follow to rotate, the direction of the airflow that the second rotating fan 202 can rotate should not be a specific direction but should be a range of directions. Preferably, the rotation axis of the second rotating fan 202 is parallel to the extending direction of the tunnel body 6, so that the second rotating fan 202 can better follow the rotation of the airflow along the extending direction of the tunnel body 6, and the second rotating fan 202 can rotate faster when facing the airflow passing through the tunnel body 6, thereby driving the first rotating fan 201 to fan the airflow in the ventilation duct 1 faster.
Regarding the location where the unpowered ventilation device is provided in the tunnel body 6, for convenience of arrangement, the unpowered ventilation device may be provided in an inner cavity of the tunnel body 6, for example, suspended from the top of the tunnel body 6; it is of course also possible to embed the ventilation duct 1 in the entity forming the tunnel body 6 and to place the second rotary fan 202 in the inner cavity of the tunnel body 6, for example, digging the tunnel body 6 under a mountain, the ventilation duct 1 may be embedded in the mountain, and the second rotary fan 202 is placed in the inner cavity of the tunnel body 6.
Preferably, the fan direction of the first rotating fan 201 is from the second air opening 102 to the first air opening 101, a wind shield is arranged outside the first air opening 101, a ventilation channel is left between the ventilation duct 1 and the wind shield, and the wind shield covers the first air opening 101 along the extending direction of the ventilation duct 1. In the utility model, the exchange of the external gas in the inner cavity of the tunnel body 6 is accelerated mainly by two modes, so as to realize the purpose of improving the air flow in the inner cavity of the tunnel body 6, one mode is that the gas with poor quality in the inner cavity of the tunnel body 6 is blown out of the tunnel body 6 by the air blowing component 2, and the other mode is that the fresh air outside the tunnel body 6 is blown into the inner cavity of the tunnel body 6 by the air blowing component 2; the technical proposal adopts a mode of blowing the gas with poor quality in the inner cavity of the tunnel body 6 out of the tunnel body 6, the poor quality gas at the outlet far away from the tunnel body 6 in the tunnel body 6 is extracted in real time by limiting the air flow in the ventilation pipeline 1 to flow towards the direction outside the tunnel body 6, so as to improve the quality of the gas in the tunnel body 6, however, the air flow outside the tunnel body 6 can blow the gas into the ventilation pipeline 1 through the first air opening 101, the collision between the gas blown from the outside of the tunnel body 6 and the gas led out from the inner cavity of the tunnel body 6 is formed, and the discharge of the gas in the inner cavity of the tunnel body 6 is not facilitated, consequently, set up the deep bead, the deep bead can avoid the outer air current of tunnel body 6 directly to blow to first wind gap 101, reduces the influence of the outer air current of tunnel body 6 to the air current in the air pipe 1, is favorable to unpowered ventilation unit smoothly with the relatively poor gas outgoing of quality in the inner chamber of tunnel body 6.
Preferably, the air blowing assemblies 2 are arranged in at least two groups, each group of air blowing assemblies 2 is distributed along the extending direction of the ventilation duct 1, and the fan directions of the first rotating fans 201 are the same along the extending direction of the ventilation duct 1 under the action of the one-way mechanism; the extending direction of the tunnel body 6 includes a first direction and a second direction opposite to each other, a part of the second rotating fans 202 rotates following the airflow in the first direction, and another part of the second rotating fans 202 rotates following the airflow in the second direction. Set up partly second rotating fan 202 to follow the air current of first direction and rotate, set up the second rotating fan 202 of another part to follow the air current of second direction and rotate, no matter what direction the air current in the inner chamber of tunnel body 6 is towards like this, the air current direction in ventilation pipe 1 can not change, be convenient for ventilation pipe 1 continuously for supplying fresh air in the inner chamber of tunnel body 6 or continuously take out the gas of the relatively poor quality in the inner chamber of tunnel body 6 outside tunnel body 6, be convenient for realize the stable improvement of gas quality in the inner chamber of tunnel body 6. It should be noted that the same fan direction of the first rotating fans 201 does not necessarily mean that the first rotating fans 201 fan in the same direction, but means that the airflow in the ventilation duct 1 that the first rotating fans 201 fan flows in the same direction along the ventilation duct 1.
Of course, the number of the second air ports 102 arranged in the inner cavity of the tunnel body 6 can be dispersedly set to be a plurality, and the plurality of second air ports 102 can exchange air for a plurality of positions in the inner cavity of the tunnel body 6 through the same ventilation pipeline 1, so that the improvement of the air quality of a plurality of positions in the inner cavity of the tunnel body 6 is facilitated, and the improvement of the air quality of each position in the inner cavity of the tunnel body 6 by the ventilation pipeline 1 is more uniform.
Tunnel embodiment two:
the tunnel provided by the embodiment comprises a tunnel body 6 and two sets of the unpowered ventilation devices, wherein each ventilation pipeline 1 is arranged along the extending direction of the tunnel body 6, and each ventilation pipeline 1 is communicated with the inner cavity of the tunnel body 6 and the external environment of the tunnel body 6; each second rotating fan 202 is located in the inner cavity of the tunnel body 6, and the fan direction of each second rotating fan 202 is along the extending direction of the tunnel body 6; in some unpowered ventilation devices, a first rotating fan 201 fans air from the outside of the tunnel body 6 to the inside of the inner cavity of the tunnel body 6; in the other unpowered ventilation device, the first rotary fan 201 fans air from the inner cavity of the tunnel body 6 in the direction outside the tunnel body 6. One part of unpowered ventilation device takes out the gas of the poor quality in the inner chamber of the tunnel body 6 to the outside of the tunnel body 6, the other part of unpowered ventilation device supplements the fresh air outside the tunnel body 6 to the inner chamber of the tunnel body 6, so that the gas of the poor quality can be discharged in real time in the inner chamber of the tunnel body 6, and the fresh air can be supplemented in real time, so that the gas in the inner chamber of the tunnel body 6 can be exchanged with the gas outside the tunnel body 6 through different ventilation devices, and the air quality in the inner chamber of the tunnel body 6 can be improved more favorably.
Certainly, the number of the unpowered ventilation devices arranged on the tunnel body 6 is not limited to two, and as long as at least one unpowered ventilation device supplies fresh air to the middle part of the tunnel body 6, and at least one unpowered ventilation device extracts the gas with poor quality in the middle part of the tunnel body 6 out of the tunnel body 6, the exchange between the gas in the middle part of the tunnel body 6 and the gas outside the tunnel body 6 can be realized, and the quality of the air in the middle part of the tunnel body 6 can be effectively improved.
Of course, the air port of the unpowered ventilation device located in the inner cavity of the tunnel body 6 is not necessarily arranged in the middle of the tunnel body 6, and the air port of the unpowered ventilation device located in the inner cavity of the tunnel body 6 can be arranged at any position with poor ventilation, so that the air quality of the position with poor ventilation in the inner cavity of the tunnel body 6 is improved.
The rest of the tunnel embodiment two is the same as the tunnel embodiment one.
Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.
Claims (10)
1. The unpowered ventilation device comprises a ventilation pipeline, wherein a first air port and a second air port are arranged on the ventilation pipeline;
the method is characterized in that:
the fan-shaped air conditioner further comprises a blowing assembly, wherein the blowing assembly comprises a first rotating fan and a second rotating fan, the first rotating fan is installed in the inner cavity of the ventilation pipeline, the fan direction of the first rotating fan is along the extending direction of the ventilation pipeline, the second rotating fan is installed outside the ventilation pipeline, and the first rotating fan is in transmission connection with the second rotating fan;
a one-way mechanism is arranged in a transmission link from the first rotating fan to the second rotating fan, and the one-way mechanism limits the fan direction of the first rotating fan.
2. The unpowered ventilation device of claim 1, wherein:
the one-way mechanism comprises a ratchet mechanism or a one-way bearing, and the ratchet mechanism or the one-way bearing is arranged on a rotating shaft in a transmission link from the first rotating fan to the second rotating fan.
3. The unpowered ventilation device of claim 1, wherein:
the air blowing assembly further comprises a transmission shaft, the transmission shaft can be rotatably arranged on the side wall of the ventilation pipeline in a penetrating manner along the extending direction perpendicular to the ventilation pipeline, a first bevel gear is arranged on a rotating shaft of the first rotating fan, a second bevel gear is arranged at one end of the transmission shaft, which is positioned in the inner cavity of the ventilation pipeline, and the first bevel gear and the second bevel gear are in meshing transmission;
and one end of the transmission shaft, which is positioned outside the ventilation pipeline, is in transmission connection with the second rotating fan.
4. The unpowered ventilation device of claim 1, wherein:
still include the ventilation safety cover, the rotatory fan blade of second is located in the ventilation safety cover.
5. The unpowered ventilation device of claim 1, wherein:
the unpowered ventilation device further comprises a first filter screen, and the first filter screen covers the first air port; and/or the presence of a gas in the gas,
the unpowered ventilation device further comprises a second filter screen, and the second filter screen covers the second air port.
6. An unpowered ventilation device according to any one of claims 1 to 5, wherein:
the air blowing assemblies are arranged into at least two groups, the air blowing assemblies of each group are distributed along the extending direction of the ventilating duct, and the fan directions of the first rotating fans are the same along the extending direction of the ventilating duct under the action of the one-way mechanism.
7. The tunnel, including the tunnel body, its characterized in that:
the unpowered ventilation device of any one of claims 1 to 6 further comprising the ventilation duct arranged along the direction of extension of the tunnel body, the first air opening being located outside the tunnel body, the second air opening being located in the inner cavity of the tunnel body, the second rotary fan being located in the inner cavity of the tunnel body, the fan direction of the second rotary fan being along the direction of extension of the tunnel body.
8. The tunnel of claim 7, wherein:
the fan direction of the first rotating fan is from the second air port to the first air port, a wind shield is arranged on the outer side of the first air port, a ventilation channel is reserved between the ventilation pipeline and the wind shield, and the wind shield covers the first air port along the extending direction of the ventilation pipeline.
9. The tunnel of claim 7, wherein:
the air blowing assemblies are arranged into at least two groups, the air blowing assemblies of each group are distributed along the extending direction of the ventilating duct, and the fan directions of the first rotating fans are the same along the extending direction of the ventilating duct under the action of the one-way mechanism;
the extending direction of the tunnel body comprises a first direction and a second direction which are opposite to each other, one part of the second rotating fans rotate along with the airflow in the first direction, and the other part of the second rotating fans rotate along with the airflow in the second direction.
10. The tunnel, including the tunnel body, its characterized in that:
the unpowered ventilation device further comprises at least two sets of unpowered ventilation devices as claimed in any one of claims 1 to 6, wherein each ventilation pipeline is arranged along the extending direction of the tunnel body, and each ventilation pipeline is communicated with the inner cavity of the tunnel body and the external environment of the tunnel body; each second rotating fan is positioned in the inner cavity of the tunnel body, and the fan direction of each second rotating fan is along the extending direction of the tunnel body; in some of the unpowered ventilation devices, the first rotary fan fans air from outside the tunnel body in a direction into the interior cavity of the tunnel body; in another part of the unpowered ventilation device, the first rotary fan fans air from the inner cavity of the tunnel body to the direction outside the tunnel body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920088475.9U CN210068224U (en) | 2019-01-18 | 2019-01-18 | Unpowered ventilation device and tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920088475.9U CN210068224U (en) | 2019-01-18 | 2019-01-18 | Unpowered ventilation device and tunnel |
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| Publication Number | Publication Date |
|---|---|
| CN210068224U true CN210068224U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920088475.9U Expired - Fee Related CN210068224U (en) | 2019-01-18 | 2019-01-18 | Unpowered ventilation device and tunnel |
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| CN (1) | CN210068224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630183A (en) * | 2019-01-18 | 2019-04-16 | 中铁十九局集团第七工程有限公司 | Powerless ventilation device and tunnel |
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2019
- 2019-01-18 CN CN201920088475.9U patent/CN210068224U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109630183A (en) * | 2019-01-18 | 2019-04-16 | 中铁十九局集团第七工程有限公司 | Powerless ventilation device and tunnel |
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