CN219974545U - Pressure air supply and pressure relief system for connecting channel between overlapping sections - Google Patents
Pressure air supply and pressure relief system for connecting channel between overlapping sections Download PDFInfo
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- CN219974545U CN219974545U CN202321360925.8U CN202321360925U CN219974545U CN 219974545 U CN219974545 U CN 219974545U CN 202321360925 U CN202321360925 U CN 202321360925U CN 219974545 U CN219974545 U CN 219974545U
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- 238000009423 ventilation Methods 0.000 claims abstract description 33
- 239000000779 smoke Substances 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to the technical field of rail transit, in particular to a pressurized air supply and pressure relief system for a connecting channel in a line overlapping section. The line overlapping section connecting channel pressurizing air supply and pressure relief system comprises a first closed chamber, a second closed chamber, an evacuation chamber, an air feeder, an air pipe and a controller; the first airtight chamber is provided with a first air port and a first ventilation channel; the second airtight chamber is provided with a second air port and a second air ventilation channel; the evacuation cavity is communicated with the first air port and the second air port, is also provided with a first evacuation door and a second evacuation door, and is internally provided with evacuation facilities; the blower is respectively communicated with the first closed chamber and the second closed chamber; the air pipe is respectively communicated with the first closed chamber and the second closed chamber; electric air valves connected with the controller are arranged in the first air port, the second air port, the first ventilation channel, the second ventilation channel and the air pipe. The utility model can reduce the smoke quantity in the evacuation channel and ensure the evacuation safety of personnel.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to a pressurized air supply and pressure relief system for a connecting channel in a line overlapping section.
Background
In urban subway construction, due to the influence of urban underground space arrangement, underground pipelines and existing building/structure space, more large-height-difference overlapping tunnels are inevitably generated in subway construction, people are always communicated through vertical communication channels under the condition of interval accident, and when accidents happen to the overlapping tunnels, no facility for guaranteeing personnel evacuation safety and preventing smoke from diffusing vertically due to a chimney effect exists in the vertical communication channels. Meanwhile, for a long section, piston wind is generated due to high-speed running of the train, and huge air pressure waves affect surrounding civil engineering structures and operation environments.
Disclosure of Invention
The utility model provides a pressurizing, air supplying and pressure releasing system for a connecting channel in a line overlapping section, which is characterized in that a wind direction guiding structure is arranged in the line overlapping section, so that air flow in an evacuation channel in the line overlapping section is guided according to a preset route, and a smoke drifting path and a personnel evacuation path are opposite to each other when a fire disaster occurs, so that personnel evacuation safety is ensured, and meanwhile, the wind direction guiding structure can also keep air pressure balance between two tunnels in the line overlapping section, so that adverse influence of train air pressure waves on a civil engineering structure or an operation environment is reduced.
The utility model is realized by the following technical scheme:
a pressure air supply and pressure relief system for a connecting channel between overlapping lines comprises:
the first airtight chamber is provided with a first air port and a first ventilation channel, wherein the first air port is provided with a first electric air valve, the first ventilation channel is provided with a second electric air valve, and the first ventilation channel is used for communicating with a first tunnel;
the second airtight chamber is provided with a second air port and a second air ventilation channel, wherein the second air port is provided with a third electric air valve, the second air ventilation channel is provided with a fourth electric air valve, and the second air ventilation channel is used for communicating with a second tunnel;
the evacuation cavity is communicated with the first air port and the second air port, is also provided with a first evacuation door used for being communicated with a first tunnel and a second evacuation door used for being communicated with a second tunnel, and is internally provided with evacuation facilities for people to reach the second evacuation door/the first evacuation door from the first evacuation door/the second evacuation door;
a blower in communication with the first and second closed chambers, respectively, to deliver an air flow from the first/second closed chambers to the second/first closed chambers;
the air pipe is respectively communicated with the first closed chamber and the second closed chamber, and a fifth electric air valve is arranged in the air pipe;
and the controller is respectively connected with the first electric air valve, the second electric air valve, the third electric air valve, the fourth electric air valve and the fifth electric air valve.
In some embodiments, the first and second evacuation doors are each provided with a smoke sensor connected to the controller.
In some embodiments, the blower is configured as a bi-directional pressurized blower.
In some embodiments, the air duct communicates with outlets at both ends of the bi-directional pressurized blower.
In some embodiments, the system further comprises a mounting chamber located between and respectively connected to the first and second closed chambers, and the blower is located within the mounting chamber.
In some embodiments, the mounting chamber is configured with an access door.
In some embodiments, the first tuyere is arranged directly opposite to the first evacuation door.
In some embodiments, the second tuyere is arranged directly opposite to the second evacuation door.
In some embodiments, the evacuation facility is a stair.
In some embodiments, the first and second evacuation doors are configured as fire doors.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
according to the pressurized air supply and pressure relief system for the communication channel between the overlapping lines, provided by the utility model, the first electric air valve, the second electric air valve, the third electric air valve, the fourth electric air valve and the fifth electric air valve can be selectively controlled through the controller, so that air flow in the first tunnel or the second tunnel can reach the second tunnel or the first tunnel through the first airtight chamber, the air feeder and the second airtight chamber, and the smoke amount entering the evacuation channel from the first evacuation door or the second evacuation door can be reduced when a fire disaster occurs, and the evacuation safety of personnel is ensured; simultaneously, after closing the forced draught blower and opening the electronic blast gate of fifth, can communicate first tunnel and second tunnel through first ventilation channel, first airtight cavity, tuber pipe, airtight cavity of second and second ventilation channel to the atmospheric pressure in balanced first tunnel and second tunnel, and then reduce the adverse effect that train air wave caused civil engineering environment and operational environment.
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 a system for pressurizing, supplying and releasing air through a communication channel between stacked wire sections according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a connection structure between a blower and an air duct according to an embodiment of the present utility model.
In the drawings, the reference numerals and corresponding part names:
1-first airtight chamber, 2-second airtight chamber, 3-evacuation chamber, 4-evacuation facility, 5-forced draught blower, 6-tuber pipe, 7-first electronic blast gate, 8-second electronic blast gate, 9-third electronic blast gate, 10-fourth electronic blast gate, 11-first evacuation door, 12-second evacuation door, 13-first tunnel, 14-second tunnel, 15-installation cavity, 16-access door, 17-fifth electronic blast gate.
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, circuits, materials, or methods have not been described in detail in order not to obscure the 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.
As shown in fig. 1-2, an embodiment of the present utility model provides a system for pressurizing, blowing and depressurizing a communication channel between stacked sections, where the system for pressurizing, blowing and depressurizing a communication channel between stacked sections includes a first closed chamber 1, a second closed chamber 2, an evacuation chamber 3, a blower 5, an air pipe 6 and a controller; the first closed chamber 1 is provided with a first air port and a first ventilation channel, wherein the first air port is provided with a first electric air valve 7, the first ventilation channel is provided with a second electric air valve 8, and the first ventilation channel is used for communicating with a first tunnel 13; the second closed chamber 2 is provided with a second air port and a second air passage, wherein the second air port is provided with a third electric air valve 9, the second air passage is provided with a fourth electric air valve 10, and the second air passage is used for communicating with a second tunnel 14; the evacuation chamber 3 is communicated with the first air port and the second air port, the evacuation chamber 3 is also provided with a first evacuation door 11 used for being communicated with a first tunnel 13 and a second evacuation door 12 used for being communicated with a second tunnel 14, and the evacuation chamber 3 is internally provided with an evacuation facility 4 for people to reach the second evacuation door 12/the first evacuation door 11 from the first evacuation door 11/the second evacuation door 12; the blower 5 is respectively communicated with the first closed chamber 1 and the second closed chamber 2 to convey air flow from the first closed chamber 1/the second closed chamber 2 to the second closed chamber 2/the first closed chamber 1; the air pipe 6 is respectively communicated with the first closed chamber 1 and the second closed chamber 2, and a fifth electric air valve 17 is arranged in the air pipe 6; the controller is connected with the first electric air valve 7, the second electric air valve 8, the third electric air valve 9, the fourth electric air valve 10 and the fifth electric air valve 17 respectively.
In the specific implementation, the case where the first evacuation door 11 and the second evacuation door 12 are vertically overlapped is taken as an example. The first airtight chamber 1 and the second airtight chamber 2 can be located at one side of the evacuation channel, namely, the first airtight chamber 1 and the second airtight chamber 2, the first tunnel 13 and the second tunnel 14 are located at two sides of the evacuation channel respectively, the first evacuation door 11 and the second evacuation door 12 communicate the first tunnel 13 and the second tunnel 14 with the evacuation channel respectively, the first evacuation door 11 and the second evacuation door 12 can be configured as fireproof doors to achieve a fireproof function, and the evacuation channel can be provided with evacuation facilities 4 such as stairs. The position of the first air port on the first closed chamber 1 corresponds to the position of the first evacuation door 11, and the position of the second air port on the second closed chamber 2 corresponds to the position of the second evacuation door 12, so that air flow circulation among the first air port, the evacuation channel, the second air port, the second closed chamber 2 and the second closed chamber 2 can be avoided; preferably, the first air port and the first evacuation door 11 are arranged opposite to each other, and the second air port and the second evacuation door 12 are arranged opposite to each other, so that the air flow of the first air port or the second air port can reach the first evacuation door 11 or the second evacuation door 12 quickly, and meanwhile, the shortest path is formed between the first air port and the first evacuation door 11 and between the second air port and the second evacuation door 12, the interference of other received air flows is small, the effective air flow can be ensured as much as possible, namely, the flue gas can be blown back into the first tunnel 13 or the second tunnel 14, the smoke amount in the evacuation channel is reduced, and the safety of people is ensured. The first ventilation channel and the second ventilation channel on the first closed chamber 1 and the second closed chamber 2 are respectively and directly communicated with the first tunnel 13 and the second tunnel 14, and the air flow in the first tunnel 13 reaches the second tunnel 14 through the first ventilation channel, the first closed chamber 1, the air pipe 6, the second closed chamber 2 and the second ventilation channel and forms unidirectional circulation.
When the system operates, if a fire disaster occurs in the first tunnel 13 above, the first evacuation door 11 and the second evacuation door 12 are opened, and meanwhile, the second electric air valve 8, the fourth electric air valve 10 and the fifth electric air valve 17 are closed, namely, the first ventilation channel and the airflow unidirectional circulation channel of the second ventilation channel are disconnected, the first electric air valve 7 and the third electric air valve 9 are opened, the blower 5 rotates clockwise to suck clean air at the second evacuation door 12 into the second closed chamber 2 through the second air port, the clean air reaches the first evacuation door 11 through the blower 5, the first closed chamber 1 and the first air port, and the clean air extrudes smoke so that part of the smoke flows back into the first tunnel 13, thereby reducing smoke in the evacuation channel and ensuring the evacuation safety of personnel; if a fire disaster occurs in the second tunnel 14 below, the first evacuation door 11 and the second evacuation door 12 are opened, and the second electric air valve 8, the fourth electric air valve 10 and the fifth electric air valve 17 are closed at the same time, namely, the first ventilation channel and the airflow unidirectional circulation channel of the second ventilation channel are disconnected, the first electric air valve 7 and the third electric air valve 9 are opened, the blower 5 rotates anticlockwise to suck clean air at the first evacuation door 11 into the first closed chamber 1 through the first air port, the clean air reaches the second conveying and containing state through the blower 5, the second closed chamber 2 and the second air port, and part of smoke is returned into the second tunnel 14 by extrusion of the clean air to the smoke, so that the smoke in the evacuation channel is reduced, and the evacuation safety of personnel is ensured; if no fire disaster occurs in the first tunnel 13 and the second tunnel 14, the first evacuation door 11 and the second evacuation door 12 are closed, the first electric air valve 7 and the third electric air valve 9 are closed, the second electric air valve 8, the fourth electric air valve 10 and the fifth electric air valve 17 are opened, and the air flow in the first tunnel 13 can reach the second tunnel 14 through the first ventilation channel, the first closed chamber 1, the air pipe 6, the second closed chamber 2 and the second ventilation channel, so that the pressure release of the first tunnel 13 is realized and the pressurization of the second tunnel 14 is realized; of course, if the air pressure in the first tunnel 13 and the air pressure in the second tunnel 14 are in the opposite relationship, the pressurization of the first tunnel 13 and the depressurization of the second tunnel 14 may be automatically realized.
In the embodiment of the utility model, the start and stop of the blower 5 can be controlled by the controller receiving the fire alarm signal from the train operation system. Of course, the place where the fire disaster may occur is far away from the evacuation door, that is, the smoke does not reach the evacuation door in the evacuation process, and then the resource is wasted if the blower 5 is started, so in some embodiments, smoke sensors may be installed on the first evacuation door 11 and the second evacuation door 12, and when the smoke sensors detect that smoke exists in a certain range and the controller receives the fire alarm signal, the controller controls the blower 5 to start.
In the embodiment of the utility model, when the train is normally operated, the first evacuation door 11 and the second evacuation door 12 are closed, that is, the circulation effect of the air flow in the evacuation channel is poor, and the air pressure of the first tunnel 13 and the air pressure of the second tunnel 14 can be balanced through the arrangement of the first ventilation channel and the second ventilation channel.
In the embodiment of the present utility model, the number of blowers 5 may be plural, wherein several are used for conveying the air flow of the first closed chamber 1 to the second closed chamber 2, and the other several are used for conveying the air flow of the second closed chamber 2 to the first closed chamber 1, but the air flow only needs to flow unidirectionally between the first closed chamber 1 and the second closed chamber 2, and no circulation is needed, i.e. a part of the blowers 5 will always be in idle state, so that in order to reduce the waste in resources and reduce the installation workload, in some embodiments, the blowers 5 may be configured as bi-directional pressurizing blowers 5. That is, the blower 5 can be controlled to be turned forward and backward by the controller according to the air flow direction to effect the change of the conveying direction.
Both the blower 5 and the air duct 6 are optional, and in order to reduce the construction strength and simplify the installation process, in some embodiments, the air duct 6 may communicate with outlets at both ends of the bi-directional pressure blower 5.
In some embodiments, the pressurized air supply and pressure relief system of the communication channel between the stacked wire sections may further include a mounting chamber 15, the mounting chamber 15 is located between the first closed chamber 1 and the second closed chamber 2 and is connected to the first closed chamber 1 and the second closed chamber 2 respectively, and the air blower 5 is located in the mounting chamber 15.
The setting of installation cavity 15 can play the guard action to forced draught blower 5 for forced draught blower 5 can be located relatively airtight environment, guarantees forced draught blower 5's life, can set up the vent that is provided with the air filter screen on the chamber wall of installation cavity 15 in order to guarantee installation cavity 15 dry, reduces the corrosion that forced draught blower 5 related structure takes place. Of course, the mounting chamber 15 may be provided with an access door 16 for maintenance personnel to repair the blower 5, the duct 6, and the like.
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 utility model provides a fold line interval connection passageway pressurization air supply and pressure release system which characterized in that includes:
a first closed chamber (1), wherein the first closed chamber (1) is provided with a first air port and a first ventilation channel, the first air port is provided with a first electric air valve (7), the first ventilation channel is provided with a second electric air valve (8), and the first ventilation channel is used for communicating with a first tunnel (13);
a second closed chamber (2), wherein the second closed chamber (2) is provided with a second air port and a second ventilation channel, the second air port is provided with a third electric air valve (9), the second ventilation channel is provided with a fourth electric air valve (10), and the second ventilation channel is used for communicating with a second tunnel (14);
the evacuation cavity (3), the evacuation cavity (3) is communicated with the first air port and the second air port, the evacuation cavity (3) is further provided with a first evacuation door (11) used for being communicated with a first tunnel (13) and a second evacuation door (12) used for being communicated with a second tunnel (14), and the evacuation cavity (3) is internally provided with an evacuation facility (4) for people to reach the second evacuation door (12)/the first evacuation door (11) from the first evacuation door (11)/the second evacuation door (12);
a blower (5), the blower (5) being in communication with the first and second closed chambers (1, 2) respectively to convey an air flow from the first closed chamber (1)/second closed chamber (2) to the second closed chamber (2)/first closed chamber (1);
the air pipe (6) is respectively communicated with the first closed chamber (1) and the second closed chamber (2), and a fifth electric air valve (17) is arranged in the air pipe (6);
and the controller is respectively connected with the first electric air valve (7), the second electric air valve (8), the third electric air valve (9), the fourth electric air valve (10) and the fifth electric air valve (17).
2. The system for pressurized air supply and pressure relief of a communication channel between stacked wires according to claim 1, wherein the first evacuation door (11) and the second evacuation door (12) are each provided with a smoke sensor connected to the controller.
3. The stacking block communication channel pressurized air supply and relief system according to claim 1, wherein said air blower (5) is configured as a bi-directional pressurized air blower (5).
4. A system for pressurized air supply and pressure relief for a connection channel between stacked wires according to claim 3, wherein said air duct (6) is connected to outlets at both ends of said bi-directional pressurized air blower (5).
5. The system for pressurized air supply and pressure relief of a communication channel between stacked wires according to claim 1, further comprising a mounting chamber (15), wherein the mounting chamber (15) is located between the first closed chamber (1) and the second closed chamber (2) and is connected with the first closed chamber (1) and the second closed chamber (2), respectively, and the air feeder (5) is located in the mounting chamber (15).
6. The system for pressurized air supply and pressure relief for inter-stack communication channels according to claim 5, characterized in that said mounting chamber (15) is provided with an access door (16).
7. The system for pressurized air supply and pressure relief of a line stacking block communication channel according to claim 1, characterized in that said first air port is arranged opposite to said first evacuation door (11).
8. The system for pressurized air supply and pressure relief for inter-stack communication channels according to claim 1 or claim 7, characterized in that said second air port is arranged opposite to said second evacuation door (12).
9. The system for pressurized air supply and pressure relief of a line stacking section connecting channel according to claim 1, characterized in that said evacuation means (4) are stairs.
10. The stacking block communication channel pressurized air supply and relief system of claim 1, wherein the first (11) and second (12) evacuation doors are configured as fire doors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321360925.8U CN219974545U (en) | 2023-05-31 | 2023-05-31 | Pressure air supply and pressure relief system for connecting channel between overlapping sections |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321360925.8U CN219974545U (en) | 2023-05-31 | 2023-05-31 | Pressure air supply and pressure relief system for connecting channel between overlapping sections |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219974545U true CN219974545U (en) | 2023-11-07 |
Family
ID=88595657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321360925.8U Active CN219974545U (en) | 2023-05-31 | 2023-05-31 | Pressure air supply and pressure relief system for connecting channel between overlapping sections |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219974545U (en) |
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2023
- 2023-05-31 CN CN202321360925.8U patent/CN219974545U/en active Active
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