CN217996027U - Suction-resistant relay reversing device for tunnel - Google Patents
Suction-resistant relay reversing device for tunnel Download PDFInfo
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- CN217996027U CN217996027U CN202222215011.4U CN202222215011U CN217996027U CN 217996027 U CN217996027 U CN 217996027U CN 202222215011 U CN202222215011 U CN 202222215011U CN 217996027 U CN217996027 U CN 217996027U
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Abstract
The application provides a suction-blocking-preventing relay reversing device for a tunnel, which comprises a reversing air box, wherein the reversing air box comprises a reversing cavity, an air inlet, an air outlet and an air outlet, wherein the air inlet, the air outlet and the air outlet are communicated with the reversing cavity; the reversing air box is also provided with a pressure relief opening, and the reversing device also comprises an air inlet channel communicated with the air inlet and a pressure relief channel communicated with the pressure relief opening; the reversing device comprises an air inlet state, a pressure relief state and an exhaust state, wherein the air inlet channel is communicated with the reversing cavity in the air inlet state, the pressure relief channel is communicated with the reversing cavity in the pressure relief state, and the air inlet channel and the exhaust channel are communicated with the reversing cavity in the exhaust state. The air supply reversing device can realize reversing of air flow, can effectively prevent the device from being sucked and held or cracked, reduces manufacturing difficulty and manufacturing cost, and improves air supply efficiency.
Description
Technical Field
The application relates to the technical field of equipment for tunnels, in particular to a suction-resistant and suffocating-resistant relay reversing device for tunnels.
Background
With the continuous development of tunnel engineering technology, tunnels tend to be longer and larger. Meanwhile, the requirement on the air supply device in the tunnel is higher and higher, and the problem of difficult air supply for the long tunnel is more and more obvious. The air pressure loss of long-distance ventilation in the tunnel is large, a high-power fan is required to work to meet the requirement of fresh air flow in the tunnel, but the air pressure loss is increased along with continuous propulsion of a working face and inevitably meets a turning part, so that the ventilation power is insufficient, the problem of poor quality of an operation environment in the tunnel is caused, a series of potential safety hazards and occupational disease hazards can be caused, and the construction efficiency and the construction safety are influenced, and therefore, the problem of insufficient power caused by overlong ventilation lines can be relieved by adopting relay ventilation; in addition, in order to improve the dust fall effect, some tunnels are provided with air purification devices, and the purified air is partially recycled. Therefore, the reversing device can be used for connecting the pipelines, but the pipeline pressure is different due to the overlong length of the conveying pipeline, so that the problem of suction and blocking caused by different pipeline pressures before and after the pipeline pressure is easy to occur, the service life of the air supply device is influenced, and the tunnel operation is also influenced.
Among the prior art, the mode of mostly adopting through seting up the pressure relief hole that is fixed with the shielding piece carries out the release and adopts independent switching-over device, clean air and the interior air of tunnel can't be distinguished to this kind of release mode, when normal operating condition, the dead weight of shielding piece is less, open by mistake easily, and then pollute the clean air in the transfer passage easily, the clean air that the air feed device provided fuses together with the interior air in the tunnel, reduce the cleanliness factor of transfer air, the conveying efficiency has also been reduced, simultaneously the release device separates with the switching-over device, manufacturing cost has been increased.
It will thus be seen that the prior art is susceptible to further improvement and enhancement.
SUMMERY OF THE UTILITY MODEL
The application provides a suction-blocking-preventing relay reversing device for a tunnel, which aims to solve at least one technical problem in the technical problems.
The technical scheme adopted by the application is as follows:
the application provides an anti-suction holding relay reversing device for a tunnel,
the reversing air box comprises a reversing cavity, an air inlet, an air outlet and an air outlet, wherein the air inlet, the air outlet and the air outlet are communicated with the reversing cavity;
the reversing air box is also provided with a pressure relief opening, and the reversing device also comprises an air inlet channel communicated with the air inlet, a pressure relief channel communicated with the pressure relief opening and an exhaust channel communicated with the exhaust opening; the reversing device comprises an air inlet state, a pressure relief state and an exhaust state, wherein in the air inlet state, the air inlet channel is communicated with the reversing cavity, in the pressure relief state, the pressure relief channel is communicated with the reversing cavity, and in the exhaust state, the air inlet channel and the exhaust channel are communicated with the reversing cavity. The suction-blocking-prevention relay reversing device for the tunnel further has the following additional technical characteristics:
the reversing air box further comprises a pressure relief box communicated with the reversing cavity, an air inlet cylinder is arranged in the pressure relief box and communicated with the air inlet to form an air inlet channel, the pressure relief port is formed in the pressure relief box, the pressure relief box is further provided with an adjusting plate rotatably connected with the pressure relief box, the adjusting plate can rotate to a first position and a second position, the first position is that the adjusting plate can be communicated with the air inlet cylinder and the air inlet to enable the reversing device to form an air inlet state, and the second position is that the adjusting plate can be communicated with the pressure relief port and the air inlet to enable the reversing device to form a pressure relief state.
The regulating plate comprises a rotating end and a movable end, the pressure relief box is provided with a rotating shaft connected with the rotating end, and a magnetic assembly is arranged on the movable end and can adsorb the regulating plate.
The magnetic assembly comprises a magnetic adsorption plate and an electromagnet connected with the adsorption plate, the air inlet state is realized, and the movable end of the adjusting plate is adsorbed on the magnetic adsorption plate.
The air inlet cylinder is made of flexible materials, and the adjusting plate is located above the air inlet cylinder.
The magnetic assembly further comprises a first induction piece arranged at the air inlet and a second induction piece arranged at the air outlet; the first sensing piece is used for identifying the pressure of the air inlet, and the second sensing piece is used for identifying the pressure of the air outlet.
The exhaust port is arranged on the opposite side wall of the air inlet. The air outlet is provided with a first baffle, the air outlet is provided with a second baffle, the air outlet and the two side walls of the air outlet are provided with baffle cavities with openings, and the openings are communicated with the air outlet and the air outlet respectively. The first baffle and the second baffle are located in the baffle cavity and can move relative to the baffle cavity, so that the first baffle and the second baffle can open/close the air outlet and the air outlet.
The air inlet department still is provided with the third response piece, the third response piece can discernment gas mass.
Due to the adoption of the technical scheme, the beneficial effects obtained by the application are as follows:
according to the suction-blocking-preventing relay reversing device for the tunnel, the air inlet, the air outlet and the air outlet are located on the side walls of the air box in different directions so as to be capable of switching the ventilation direction; the arrangement of the pressure relief port and the pressure relief channel communicated with the pressure relief port can relieve pressure when the pressure of the air outlet is smaller than that of the air inlet, thereby effectively preventing the reversing air box from being sucked and suppressed, reducing the manufacturing difficulty and the manufacturing cost and improving the air supply efficiency; and the reversing device comprises an air inlet state, a pressure relief state and an exhaust state, wherein the air inlet can ventilate in the air inlet state, clean air is conveyed to the air outlet by the air inlet channel at the moment, the pressure relief port can relieve the air which cannot be absorbed by the relay fan in the pressure relief state, the burst accident of the relay air box or the air duct is avoided, and the purified air which does not meet the use requirement of the air quality standard can be directly discharged into the tunnel through the exhaust port in the exhaust state, so that the harmful gas is prevented from being sucked into the working face. The device can realize the free conversion of wind direction, has effectively avoided the emergence of accident, and the switching-over convenient and fast has improved air feed efficiency greatly, has also improved the environmental quality in the tunnel.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a ventilation state of an anti-suction relay reversing device for a tunnel according to an embodiment of the present application;
fig. 2 is a schematic partial structural diagram of a ventilation state of an anti-suction relay reversing device for a tunnel according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a pressure relief state of an anti-suction relay reversing device for a tunnel according to an embodiment of the present application;
fig. 4 is a schematic partial structural diagram of a pressure relief state of the suction resistance relay reversing device for a tunnel according to an embodiment of the present application.
Reference numerals
The air-conditioning device comprises a reversing air box 1, a reversing cavity 11, an air inlet 12, an air outlet 13, a pressure relief opening 14, a pressure relief box 15, an adjusting plate 151, a magnetic component 152, a fixed frame 16, an air outlet 17, a sealing part 18, an air inlet barrel 2, an air inlet channel 21, a pressure relief channel 3, a first baffle 4 and a second baffle 5.
Detailed Description
In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.
In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like refer to orientations or positional relationships illustrated in the drawings, which are used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the present application.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the present application, as shown in fig. 1 to 4, a suction-blocking-prevention relay reversing device for a tunnel is provided, which includes a reversing air box 1, where the reversing air box 1 includes a reversing cavity 11, and an air inlet 12, an air outlet 13, and an air outlet 17 that communicate with the reversing cavity 11, and the air inlet 12, the air outlet 13, and the air outlet 17 are located on side walls of the air box in different directions so as to be capable of switching a ventilation direction;
the reversing air box 1 is also provided with a pressure relief opening 14, and the reversing device also comprises an air inlet channel 21 communicated with the air inlet 12, a pressure relief channel 3 communicated with the pressure relief opening 14 and an exhaust channel communicated with the exhaust opening 17; the reversing device comprises an air inlet state, a pressure relief state and an air exhaust state, wherein in the air inlet state, the air inlet channel 21 is communicated with the reversing cavity 11, in the pressure relief state, the pressure relief channel 3 is communicated with the reversing cavity 11, and in the air exhaust state, the air inlet channel 21 and the air exhaust channel are communicated with the reversing cavity 11. Specifically, when the reversing device is in an air inlet state, the pressure relief port 14 is closed, the pressure relief channel 3 is not communicated with the reversing cavity 11, the cleaned air enters the reversing cavity 11 through the air inlet channel 21, and enters the collecting air box through the air inlet 12 and the air outlet 13 to be collected, and the air can be used as supplementary air of the whole ventilation system; when the reversing device is in a pressure relief state, the air outlet 13 needs to suck or exhaust a large amount of air, at the moment, the air inlet 12 is closed under the action of the self weight and/or suction force of the adjusting plate 151, the air is sucked or exhausted from the pressure relief port 14, at the moment, the pressure of the air inlet 12 is equal to that of the air outlet 13, the suction and suppression problem does not exist, and the suction and suppression or expansion problem of the air collecting box is also avoided; when the reversing device is in an air exhaust state, the pressure relief port 14 and the air outlet 13 are closed, the air outlet 17 of the air outlet 13 is opened, and purified air which does not meet the quality requirement is exhausted through the air outlet 17.
It should be noted that the reversing box except for the openings such as the pressure relief opening 14, the air inlet 12 and the air outlet 13 is closed to ensure that air does not enter the reversing air box 1 from other positions except for the above openings, the reversing air box 1 may further include a fixed frame 16 and a sealing portion 18 (not shown), the fixed frame 16 may be made of a hard material such as wood or an alloy, and the sealing portion 18 may be made of a flexible material such as canvas or plastic, which is not limited in this application and can be selected by a skilled person according to actual conditions; in addition, the specific shape of the reversing air box 1 is not limited in the application, and can be selected according to the specific situation in the tunnel, for example, the reversing air box can be arranged into a square body, a cylinder body and the like.
As a preferred embodiment of the present application, as shown in fig. 2 and fig. 4, the reversing air box 1 may further include a pressure relief box 15 communicating with the reversing cavity 11, an air inlet barrel 2 is disposed in the pressure relief box 15, the air inlet barrel 2 communicates with the air inlet 12 to form an air inlet passage, the pressure relief port 14 is disposed in the pressure relief box 15, the pressure relief box 15 is further provided with an adjusting plate 151 rotatably connected to the pressure relief box 15, the adjusting plate 151 is rotatable to a first position and a second position, in the first position, the adjusting plate 151 can conduct the air inlet barrel 2 and the air inlet 12, so that the reversing device forms an air inlet state, in the second position, the adjusting plate 151 can conduct the pressure relief port 14 and the air inlet 12, so that the reversing device forms a pressure relief state.
As a preferred embodiment of the present application, as shown in fig. 2 and 4, the adjusting plate 151 may include a rotating end and a movable end, the pressure relief box 15 is provided with a rotating shaft (not shown) connected to the rotating end, and a magnetic assembly 152 is further provided opposite to the movable end, and the magnetic assembly 152 can attract the adjusting plate 151.
As a preferred embodiment of the present application, the magnetic assembly 152 may include a magnetic adsorption plate and an electromagnet connected to the adsorption plate, in which the movable end of the adjustment plate 151 is adsorbed on the magnetic adsorption plate in the air intake state.
As a preferred embodiment of the present application, the air inlet drum 2 is made of a flexible material, and the adjustment plate 151 is located above the air inlet drum 2.
Specifically, in an embodiment as shown in fig. 2 and 4, the pressure relief box 15 is located at one side of the air inlet 12, the air inlet barrel 2 passes through the pressure relief box 15 to communicate with the air inlet 12 and form an air inlet channel, the pressure relief port 14 is arranged at the top of the pressure relief box 15, an adjusting plate 151 for opening/closing the pressure relief port 14 is further arranged at the top of the pressure relief box 15, and the adjusting plate 151 can also be used for controlling the conduction of the air inlet channel 21; as shown in fig. 2, when the electromagnet is energized, the magnetic adsorption plate adsorbs the adjustment plate 151, so that the adjustment plate 151 and the top of the pressure relief box 15 are located on the same plane, at this time, the adjustment plate 151 is located at a first position, the adjustment plate 151 seals the pressure relief opening 14, the air inlet channel 21 is communicated, the reversing device is in an air inlet state, clean air enters the reversing air box 1 through the air inlet channel, and flows out of the reversing air box 1 through the air outlet 13 after the circulation direction is switched; as shown in fig. 4, when the electromagnet is powered off, the magnetic adsorption plate no longer adsorbs the adjustment plate 151, the movable end of the adjustment plate 151 falls to the bottom of the pressure relief box 15, that is, the adjustment plate 151 is in the second position, at this time, the air inlet barrel 2 is collapsed by the adjustment plate 151, and is no longer ventilated, the air inlet channel 21 is in a non-conducting state, the pressure relief opening 14 is opened, the pressure relief channel 3 is conducting, the reversing device is in a pressure relief state, and unclean air in the tunnel enters the reversing air box 1 and flows out through the air outlet 13.
It should be noted that in an embodiment as shown in fig. 1-4, the air inlet 12 can be communicated with both the air inlet channel 21 and the pressure relief channel 3, i.e. the air entering the reversing air box 1 passes through the air inlet 12 in any state of the reversing device, which makes the reversing device simple in structure and achieves various technical effects of reversing, pressure relief, relay, etc. through the simple structure. In addition, air inlet section of thick bamboo 2 should choose flexible material for use, and this application does not do the restriction to this, and materials such as plastics, canvas are specifically can be selected for use and make.
As a preferred embodiment of the present application, the magnetic assembly 152 further includes a first sensing member disposed at the air inlet 12 and a second sensing member disposed at the air outlet 13; the first sensing member is used for identifying the pressure of the air inlet 12, and the second sensing member is used for identifying the pressure of the air outlet 13.
Specifically, when the pressure of the air outlet 13 is substantially the same as the pressure of the air inlet 12, the reversing device has no pressure difference, the reversing device is in the air inlet state, the electromagnet is powered on, the adjusting plate 151 is located at the first position, and the suction problem does not exist; when the pressure of the air outlet 13 is lower than the pressure of the air inlet 12, the reversing device has a pressure difference, and the reversing device has a possibility of being sucked, the reversing device should be converted into a pressure relief state, that is, the electromagnet is powered off, the adjusting plate 151 is shifted to the second position, the air inlet channel 21 is closed, the pressure relief channel 3 is switched on, and the pressure relief efficiency is improved.
As a preferred embodiment of the present application, the exhaust port 17 is provided at an opposite side wall of the intake port 12.
As a preferred embodiment of this application, air outlet 13 department is provided with first baffle 4, gas vent 17 department is provided with second baffle 5, air outlet 13 with gas vent 17 place both sides wall still is including having open-ended baffle chamber, and the opening communicates respectively air outlet 13 and gas vent 17.
As a preferred embodiment of the present application, as shown in fig. 1, the first baffle 4 and the second baffle 5 are located in the baffle cavity and can move relative to the baffle cavity, so that the first baffle 4 and the second baffle 5 can open/close the air outlet 13 and the air outlet 17. Specifically, the air outlet 13 and the air outlet 17 are provided with a first baffle 4 and a second baffle 5 to open/close the air outlet 13 and the air outlet 17. When the reversing device is not in a pressure relief state, the air inlet channel 21 is conducted, air enters the reversing device through the air inlet 12, the third sensing piece identifies the air, if the air quality meets the requirement, the air outlet 13 is opened, the air flows out of the reversing device through the air outlet 13, if the air quality does not meet the requirement, the air outlet 17 is opened, the air is discharged through the air outlet 17 until the quality of the inflowing air meets the requirement, the air outlet 17 is closed, the air outlet 13 is opened, and then the clean air flows out of the reversing device.
As a preferred embodiment of the present application, a third sensing member is further disposed at the air inlet 12, and the third sensing member can identify the gas quality. Where not mentioned in this application, this may be achieved using or taking advantage of existing technology.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The anti-suction-blocking relay reversing device for the tunnel is characterized by comprising a reversing air box, wherein the reversing air box comprises a reversing cavity, an air inlet, an air outlet and an air outlet, the air inlet, the air outlet and the air outlet are communicated with the reversing cavity, and the air inlet, the air outlet and the air outlet are positioned on the side walls of the air box in different directions so as to be capable of switching the ventilation direction;
the reversing air box is also provided with a pressure relief opening, and the reversing device also comprises an air inlet channel communicated with the air inlet, a pressure relief channel communicated with the pressure relief opening and an exhaust channel communicated with the exhaust opening; the reversing device comprises an air inlet state, a pressure relief state and an air exhaust state, wherein in the air inlet state, the air inlet channel is communicated with the reversing cavity, in the pressure relief state, the pressure relief channel is communicated with the reversing cavity, and in the air exhaust state, the air inlet channel and the air exhaust channel are communicated with the reversing cavity.
2. The apparatus according to claim 1, wherein the reversing air box further comprises a pressure relief box communicating with the reversing chamber, an air inlet cylinder is disposed in the pressure relief box, the air inlet cylinder communicates with the air inlet to form an air inlet passage, the pressure relief port is disposed in the pressure relief box, the pressure relief box further comprises an adjusting plate rotatably connected to the pressure relief box, the adjusting plate is capable of rotating to a first position and a second position, the adjusting plate is capable of communicating the air inlet cylinder with the air inlet to enable the reversing apparatus to form an air inlet state, and the adjusting plate is capable of communicating the pressure relief port with the air inlet to enable the reversing apparatus to form a pressure relief state in the second position.
3. The apparatus according to claim 2, wherein the adjusting plate comprises a rotating end and a moving end, the pressure relief box has a rotating shaft connected to the rotating end, and a magnetic assembly is disposed opposite to the moving end, and the magnetic assembly can attract the adjusting plate.
4. The apparatus according to claim 3, wherein the magnetic assembly comprises a magnetic adsorption plate and an electromagnet connected to the adsorption plate, and the movable end of the adjustment plate is adsorbed to the magnetic adsorption plate in the air intake state.
5. The apparatus according to claim 3, wherein the air inlet drum is made of a flexible material, and the adjusting plate is located above the air inlet drum.
6. The apparatus according to claim 3, wherein the magnetic assembly further comprises a first sensing member disposed at the air inlet and a second sensing member disposed at the air outlet; the first sensing piece is used for identifying the pressure of the air inlet, and the second sensing piece is used for identifying the pressure of the air outlet.
7. The apparatus according to claim 1, wherein the air outlet is disposed at an opposite side wall of the air inlet.
8. The apparatus according to claim 7, wherein a first baffle is disposed at the air outlet, a second baffle is disposed at the air outlet, and baffle cavities having openings are disposed on two sidewalls of the air outlet and the air outlet, and the openings are respectively connected to the air outlet and the air outlet.
9. The apparatus according to claim 8, wherein the first and second shutters are disposed in the shutter cavity and movable relative to the shutter cavity, so that the first and second shutters can open/close the outlet and the outlet.
10. The apparatus according to claim 8, wherein a third sensor is further disposed at the air inlet, and the third sensor is capable of recognizing the gas quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222215011.4U CN217996027U (en) | 2022-08-22 | 2022-08-22 | Suction-resistant relay reversing device for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222215011.4U CN217996027U (en) | 2022-08-22 | 2022-08-22 | Suction-resistant relay reversing device for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217996027U true CN217996027U (en) | 2022-12-09 |
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ID=84326693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222215011.4U Active CN217996027U (en) | 2022-08-22 | 2022-08-22 | Suction-resistant relay reversing device for tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217996027U (en) |
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2022
- 2022-08-22 CN CN202222215011.4U patent/CN217996027U/en active Active
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