CN112461488A - Tunnel high-pressure air curtain test device, method and system - Google Patents
Tunnel high-pressure air curtain test device, method and system Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title abstract description 13
- 239000000779 smoke Substances 0.000 claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 7
- 239000004509 smoke generator Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
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- 238000010998 test method Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 12
- 230000000903 blocking effect Effects 0.000 abstract description 8
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention discloses a tunnel high-pressure air curtain test device, a method and a system, wherein the tunnel high-pressure air curtain test device comprises: the air curtain is arranged in the tunnel model, and the air supply mechanism is used for enabling the air curtain to generate a high-pressure air curtain so as to divide the tunnel model into at least two test areas, wherein the at least two test areas are respectively provided with a plurality of sections which are arranged at intervals along the length direction of the tunnel model; the data acquisition instrument comprises a temperature collector and/or a smoke concentration collector, wherein the temperature collector and/or the smoke concentration collector are respectively arranged on the sections of at least two test areas to measure temperature values and/or smoke concentration values at different sections, so that temperature fields and/or smoke concentration fields in the at least two test areas are obtained through tests. The invention is used for simulating, researching and analyzing the blocking effect of the high-pressure air curtain of the tunnel on low-temperature air and smoke dust under different wind pressure, air flow, high-pressure air pipe length and other influence factors.
Description
Technical Field
The invention relates to the technical field of tunnel testing devices and methods, in particular to a tunnel high-pressure air curtain testing device and method.
Background
High-pressure air curtains, also called air curtains, are widely used in the coal mine industry, are a stream of flat jet flow, are mostly ejected out in a certain direction at a high wind speed through an air feeder by utilizing a ventilator arranged on a tunnel boring machine, and are used for cutting off the air flow in a tunnel or adjusting the air volume in the tunnel. When the airflow direction of the air curtain is vertical to the peripheral section of the roadway, the air curtain can block the airflow. Therefore, the air curtain can prevent air leakage, control wind direction, control air intake and prevent toxic and harmful gas from invading the working place under the condition of not hindering transportation, and the operation is reliable.
Because the coal mine tunnel is narrow and small, the high-pressure air curtain is applied to the coal mine industry and is diffused to the peripheral surface of the tunnel through an air supply device on the tunneling machine to form the high-pressure air curtain. The tunnel is often large in section, and the air curtain arrangement can only spray high-pressure air from the upper part to the lower part of the section of the tunnel to form the air curtain, so that the air curtain is greatly different from the formation of the high-pressure air curtain in a coal mine. The effect of the high-pressure air curtain of the tunnel on the diffusion of low-temperature air and smoke dust can not come according to the coal mine tunnel, and the research on the high-pressure air curtain of the tunnel is favorable for weakening the freeze injury of the tunnel lining in the alpine region and can effectively prevent the tunnel face construction from diffusing polluted air.
Disclosure of Invention
The invention mainly aims to provide a tunnel high-pressure air curtain test device and method, which are used for simulating, researching and analyzing the blocking effect of a high-pressure air curtain on low-temperature air and smoke dust.
In order to achieve the above object, the present invention provides a tunnel high-pressure air curtain test device, which comprises:
the model of the tunnel is a model of the tunnel,
an air curtain disposed within the tunnel model,
the air supply mechanism is used for enabling the air curtain to generate a high-pressure air curtain so as to divide the tunnel model into at least two test areas, and the at least two test areas are provided with a plurality of sections which are arranged at intervals along the length direction of the tunnel model;
the data acquisition instrument comprises a temperature collector and/or a smoke concentration collector, wherein the temperature collector and/or the smoke concentration collector are respectively arranged on monitoring sections of the at least two test areas so as to measure temperature values and/or smoke concentration values at different monitoring sections, and thus temperature fields and/or smoke concentration fields in the at least two test areas are obtained through tests.
Optionally, the data acquisition instrument further comprises an anemoscope, and the anemoscope is arranged at the air curtain section to measure the wind speed values and the distribution rules of different positions of the air curtain section. .
Optionally, the air curtain includes the main tuber pipe and a plurality of spouts the tuber pipe, a plurality of spout the tuber pipe with the main tuber pipe intercommunication, the main tuber pipe is the arch, a plurality of spouts the tuber pipe and follows the width direction interval arrangement of tunnel model is in the main tuber pipe.
Optionally, the main air pipe and the plurality of air injection pipes are detachably connected.
Optionally, the air curtain comprises a first air curtain and a second air curtain; the first air curtain and one part of the tunnel model construct a first test area under the condition of generating a high-pressure air curtain, and a temperature regulator and the temperature collector are arranged in the first test area; and constructing a second test area by the second air curtain and the other part of the tunnel model under the condition of generating the high-pressure air curtain, wherein a smoke generator and the smoke concentration collector are arranged in the second test area.
Optionally, the second test area is transparent.
Optionally, air feed mechanism includes that air compressor machine, air compressor machine are responsible for, air compressor machine branch pipe, high-pressure gas holder and high-pressure air feed pipe, the air compressor machine loops through the air compressor machine is responsible for the air compressor machine branch pipe high-pressure gas holder with high-pressure air feed pipe to the air curtain provides the air, the pressure range of air is 0.2Mpa ~1.0 Mpa.
Optionally, the air compressor main pipe is provided with a valve, a pressure gauge and a flow meter.
In order to achieve the above object, the present invention further provides a method for testing a high-pressure air curtain of a tunnel, wherein the method for testing a high-pressure air curtain of a tunnel comprises:
making a tunnel model;
arranging an air curtain device in the tunnel model;
enabling the air curtain device to generate a high-pressure air curtain through an air supply mechanism so as to divide the tunnel model into at least two test areas, wherein the at least two test areas are provided with a plurality of monitoring sections which are arranged at intervals along the length direction of the tunnel model;
and respectively arranging a temperature collector and/or a smoke concentration collector on the monitoring sections of the at least two test areas to measure temperature values and/or smoke concentration values at different sections, so as to obtain temperature fields and/or smoke concentration fields in the at least two test areas through tests.
In order to achieve the above purpose, the invention further provides a tunnel high-pressure air curtain test system, which comprises a processor and the tunnel high-pressure air curtain test device, wherein the processor is in communication connection with the data acquisition instrument.
According to the technical scheme, a data acquisition instrument is arranged on the section, not provided with the air curtain, of the tunnel model, and the section provided with the data acquisition instrument is a monitoring section; the monitoring sections are multiple and are arranged at intervals along the length direction of the tunnel model. One type of data collector is arranged on one monitoring section, the data collector comprises a temperature collector and/or a smoke concentration collector, namely: the temperature collectors are arranged on the cross section of one test area, or the smoke concentration collectors are arranged on the cross section of the other test area, so that temperature data collected by the temperature collectors on different cross sections of the same test area can form a temperature field, smoke concentration data collected by the smoke concentration collectors on different cross sections of the same test area can form a smoke concentration field, and the blocking effect of the high-pressure air curtain on low-temperature air and smoke dust can be researched and analyzed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a preferred embodiment of the high-pressure air curtain test device for a tunnel according to the present invention;
FIG. 2 is a schematic view of the layout of the air curtain of the present invention;
FIG. 3 is a schematic view of the connection of the air curtain tube of the present invention;
FIG. 4 is another schematic view of the connection of the air curtain tube of the present invention;
FIG. 5 is a schematic view of the layout of the temperature data acquisition site of the present invention;
FIG. 6 is a schematic view of the layout of temperature data acquisition sites according to the present invention;
FIG. 7 is a schematic flow chart of a preferred method of the tunnel high-pressure air curtain test method of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 100 | Tunnel |
300b | Main pipe of |
|
| 200 | |
300c | Air |
|
| 200a | |
300d | High-pressure |
|
| 200b | |
300e | High-pressure |
|
| 200c | |
| Temperature collector | |
| 200d | |
400b | |
|
| 200e | Nozzle with a |
| Temperature regulator | |
| | Air compressor | 500b | Smoke generator |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a tunnel high-pressure air curtain test device which is used for simulating, researching and analyzing the blocking effect of a tunnel high-pressure air curtain on low-temperature air and smoke dust under different influence factors such as air pressure, air flow and high-pressure air pipe length.
Fig. 1 is a tunnel high-pressure air curtain test device provided by the invention, and as shown in fig. 1, the tunnel high-pressure air curtain test device includes:
the tunnel model (100) is shown,
an air curtain 200 disposed within the tunnel model 100,
the air supply mechanism 300 is used for enabling the air curtain 100 to generate a high-pressure air curtain so as to divide the tunnel model 100 into at least two test areas, and the at least two test areas are respectively provided with a plurality of monitoring sections which are arranged at intervals along the length direction of the tunnel model 100;
the data acquisition instrument comprises a temperature collector 400a and/or a smoke concentration collector 400b, wherein the temperature collector and/or the smoke concentration collector are respectively arranged on the sections of the at least two test areas to measure temperature values and/or smoke concentration values at different sections, so that temperature fields and/or smoke concentration fields in the at least two test areas are obtained through tests.
It should be noted that the tunnel model 100 includes an annular arched steel frame and a longitudinal connecting steel frame, which are fixed to each other to construct a steel frame structure of the tunnel model; glass or hard transparent films are arranged between the adjacent arched steel frames so as to observe test results. The air curtain 200 is disposed in the tunnel model 100, and specifically, the tunnel model further includes a reinforcing steel frame to fix the air curtain on the top of the tunnel model 100. The air supply mechanism 300 enables the air curtain to generate a high-pressure air curtain, so that the tunnel model 100 is divided into at least two test areas based on the air curtain; for example, one test area may be subjected to a temperature test and another test area may be simultaneously subjected to a smoke test.
It should be noted that, the two ends of the tunnel model 100 are provided with the closing mechanisms, and in the test process, the tunnel model 100 is a closed space, so as to prevent the influence of heat and mass transfer between the inside of the tunnel model 100 and the external space on the test effect. For example, the closing mechanism may be canvas with a zipper in the middle, a heat-insulating curtain with a zipper, a sliding door, or the like.
It should be noted that a data acquisition instrument is arranged on the section of the tunnel model in which the air curtain is arranged, and the section provided with the data acquisition instrument is a monitoring section; the monitoring sections are a plurality of and are arranged at intervals along the length direction of the tunnel model 100. One type of data collector is arranged on one monitoring section, and the data collector comprises a temperature collector 400a and/or a smoke concentration collector 400b, namely: the temperature collector 400a is arranged on the section of one test area, or the smoke concentration collector 400b is arranged on the section of the other test area, so that temperature data collected by the temperature collectors 400a on different sections of the same test area can form a temperature field, smoke concentration data collected by the smoke concentration collectors 400b on different sections of the same test area can form a smoke concentration field, and the blocking effect of the air curtain on low-temperature air and smoke dust is analyzed in a test.
The test forming temperature field and the test forming smoke concentration field may be performed simultaneously or separately.
Optionally, the data acquisition instrument further includes an anemoscope, and the anemoscope is disposed at the wind curtain cross section to measure the wind speed value and the distribution rule at the cross section. Namely: according to the invention, the wind speed measuring instruments can be arranged at the sections of the two air curtains, so that the air curtain wind speed field can be obtained while a temperature field and/or a smoke concentration field is formed in a simulation mode, and the performance of the air curtain can be analyzed.
Optionally, referring to fig. 2, the air curtain 200 includes a main air duct 200a and a plurality of air ducts 200b, the plurality of air ducts 200b are communicated with the main air duct 200a, the main air duct 200a is arched, and the plurality of air ducts 200b are arranged in the main air duct 200a at intervals along the width direction of the tunnel model. The main air duct 200a is fixed to the reinforcing steel frame, and may be bound by iron wires, welded or adhered by high-strength glue, for example. Referring to fig. 2, a plurality of air injection pipes 200b are arranged at intervals in the width direction of the tunnel model on the main air pipe 200a to form a high-pressure air curtain during air injection; in the specific implementation process, the air spraying direction of the air spraying pipe 200b is approximately vertical downwards or vertical to the ground, and the air is diffused towards two sides.
Preferably, as shown in fig. 3, a nozzle 200e is further connected to the air spout pipe 200b, and the air spout pipe 200b guides the air in the main air pipe 200a to the nozzle 200e and then spouts out to form a high-pressure air curtain. In the specific implementation process, the number of the nozzles 200e is two, the included angle between the two nozzles 200e is 5-15 degrees, and the two nozzles 200e are symmetrically arranged along the axis of the air spraying pipe 200 b. The nozzle 200e may be welded to the blowout nozzle 200b, or may be bonded to the blowout nozzle 200b by high-strength glue. The diameter of the nozzle 200e is smaller than that of the air injection pipe 200b, so that the pressurization effect is achieved, and the air curtain condition under the real environment is simulated.
Optionally, the main air duct 200a and the plurality of air ducts 200b are detachably connected. For example, a plurality of blast ducts 200b are connected to the main duct 200a by screw threads so that the blast ducts 200b can be replaced. From this, the device can change the blast pipe 200b of different length to simulation blast pipe 200b length is convenient for make the blast pipe length of preferred when practical application according to the test result to the separation effect of tunnel high pressure air curtain to low temperature air and smoke and dust.
Alternatively, as shown with reference to FIG. 1, the air curtain 200 includes a first air curtain 200c and a second air curtain 200 d; under the condition of generating a high-pressure air curtain, the first air curtain 200c and a part of the tunnel model 100 construct a first test area, and a temperature regulator 500a and the temperature collector are arranged in the first test area; under the condition of generating the high-pressure air curtain, the second air curtain 200d and the other part of the tunnel model 100 construct a second test area, and a smoke generator 500b and the smoke concentration collector are arranged in the second test area. Because the gushing pressure of air curtain, gushing flow and gushing pipe have different influence mechanism to temperature field and smog concentration field, therefore this test device is provided with two air curtains (first air curtain 200c and second air curtain 200 d), operation that two air curtains can be independent to can carry out different experiments simultaneously respectively, acquire temperature field and smog concentration field to the experiment and formulate different test schemes, thereby can do not disturb each other ground analysis gushing pressure, gushing flow and gushing pipe to the influence mechanism in temperature field and smog concentration field.
In a specific implementation, the thermostat 500a is activated to regulate the temperature in the first test zone after the first air curtain 200c is opened to form a high pressure air curtain. The temperature regulator 500a may be an air conditioner and used to create a low temperature environment; meanwhile, ice blocks can be arranged in the first test area to achieve the purpose of better cooling. Therefore, the first test area is a cold air simulation room which is used for simulating a tunnel in a high-cold area and testing the condition that the high-pressure air curtain resists the invasion of cold air at the tunnel entrance.
In a specific implementation, after the second air curtain 200d is opened to form the high pressure air curtain, the smoke generator 500b is activated to form smoke in the second test area. The smoke generator 500b may be a fan, and the environment-friendly color smoke is used to simulate smoke dust in actual tunnel construction. Therefore, the second test area is a smoke simulation chamber and is used for simulating the diffusion condition of smoke in the tunnel, and the implementation effect of blocking the diffusion of the smoke in the tunnel by the test air curtain is achieved. Since the second test area is transparent, the effect of the air curtain on blocking the diffusion of smoke dust can be qualitatively evaluated in combination with observation.
Optionally, the air supply mechanism includes an air compressor 300a, an air compressor main pipe 300b and an air compressor branch pipe 300c, the air compressor sequentially passes through the air compressor main pipe 300b and the air compressor branch pipe 300c to provide air to the air curtain, and the pressure range of the air is: 0.2 to 1.0 MPa. As shown in fig. 1, since the air curtain is two, the compressor branch duct 300c is connected to the compressor main duct 300b in parallel. As shown in fig. 1, the air supply mechanism further includes a high-pressure air tank 300 d. The number of the high-pressure air storage tanks is 2, and the high-pressure air storage tanks are connected to the air compressor branch pipe 300a in parallel and used for supplying air to the first air curtain 200c and the second air curtain 200d respectively. The high-pressure air tank 300d is connected between the air compressor branch pipe 300c and the high-pressure air supply pipe 300 e. The high pressure air supply duct 300e communicates with the main duct 200 a. In the specific implementation process, air is compressed by the air compressor 300a, and the compressed air flows to the main air duct 200a through the main air compressor pipe 300b, the branch air compressor pipes 300c, the high-pressure air storage tank 300d and the high-pressure air supply duct 300 e.
Optionally, the high-pressure air supply pipe 300e is provided with a valve, a pressure gauge and a flow meter. The valve comprises a flow regulating valve and/or a pressure regulating valve, wherein the flow regulating valve is used for regulating the air volume entering a main air pipe, and the pressure regulating valve is used for regulating the air pressure so as to simulate the separation effect of different air volumes and different air pressures on low-temperature air and smoke dust.
The manometer is used for the record test pressure, and the flowmeter is used for the record test flow. In addition, the air compressor, the main pipe of the air compressor, the branch pipe of the air compressor, the high-pressure air storage tank and the like can be provided with a valve, a pressure gauge and a flowmeter.
A preferred tunnel high-pressure air curtain test device of the invention is as follows: a test device for simulating a high-pressure air curtain of a tunnel mainly comprises an air supply mechanism, a first air curtain 200c, a second air curtain 200d, a cold air simulation chamber, a smoke dust simulation chamber (dirty air) and the like. The air supply mechanism includes an air compressor 300a, an air compressor main pipe 300b, air compressor branch pipes 300c (two), and high-pressure air storage tanks 300d (two), and high-pressure air supply pipes 300 e. The two high-pressure air tanks are connected in parallel, and supply high-pressure air to the first air curtain 200c and the second air curtain 200d through respective high-pressure air supply pipes 300 e. Without loss of generality, the high pressure air tank 300d may also be supplied with high pressure air using a separate air compressor. The main pipe of the air compressor is provided with a valve, a pressure gauge and a flowmeter. The branch pipe of the air compressor is provided with a valve, a pressure gauge and a flowmeter. And the high-pressure air supply pipe is provided with a valve, a pressure gauge and a flowmeter. The tunnel model 100 is composed of an annular arched steel frame and a longitudinal connecting steel frame, and is fixed on the bottom surface, and glass or a hard transparent film is laid outside, so that the test effect can be observed conveniently. The middle of the air curtain is provided with a reinforcing steel frame, so that the first air curtain 200c and the second air curtain 200d can be fixedly supported. The mould is closed at both ends, for example by a canvas with a zip in the middle. The size of the tunnel model may be chosen according to the situation, e.g. 4m x 5 m. The air curtain comprises a first air curtain 200c and a second air curtain 200d which are consistent in structural form and respectively comprise a main air pipe 200a and a jet air pipe 200 e. The air spraying pipes 200e are vertically arranged in the arch part, the upper ends of the air spraying pipes are circular and are connected with the main air pipe 200a through threads, the lower ends of the air spraying pipes are oval, two thin pipe nozzles 200e are connected, welding or high-strength glue bonding can be achieved, the included angle of the nozzles is 5-15 degrees, and the length of the nozzles can be selected to be 10-20 cm. The cold wind simulation room is the first test area between model tip and the first air curtain, and inside is provided with the air conditioner and is convenient for make the low temperature, and its inside accessible increases arranges the purpose that the ice-cube reaches better cooling. The smoke simulation chamber is an area between the end part of the model and the second air curtain 200d, a fan is arranged in the smoke simulation chamber, smoke in actual construction of the tunnel is simulated by using environment-friendly colored smoke, and the dust blocking effect of the high-pressure air curtain can be conveniently and visually observed. A plurality of monitoring sections can be arranged in front of and behind the air curtain, the probe type thermometer is used for testing temperature change, and monitoring elements are used for testing corresponding data of the measuring points. In the test, the influence of factors such as air pressure, air quantity, the length of an air curtain spray pipe, the size of a nozzle and the like on the effect of the high-pressure air curtain of the tunnel can be researched.
The invention discloses a tunnel high-pressure air curtain test method, which comprises the following steps:
s01: making a tunnel model;
s02: arranging an air curtain device in the tunnel model;
s03: enabling the air curtain device to generate high-pressure air flow through an air supply mechanism to form a high-pressure air curtain so as to divide the tunnel model into at least two test areas, wherein the at least two test areas are respectively provided with a plurality of sections which are arranged at intervals along the length direction of the tunnel model;
s04: and respectively arranging a temperature collector and/or a smoke concentration collector on the sections of the at least two test areas to measure temperature values and/or smoke concentration values at different sections, so as to obtain temperature fields and/or smoke concentration fields in the at least two test areas through tests.
The invention also discloses a tunnel high-pressure air curtain test system which comprises a processor and a tunnel high-pressure air curtain test device, wherein the processor is in communication connection with the data acquisition instrument. The tunnel high-pressure air curtain test device has the structure of the above embodiment.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a tunnel high pressure air curtain test device which characterized in that, tunnel high pressure air curtain test device includes:
the model of the tunnel is a model of the tunnel,
an air curtain disposed within the tunnel model,
the air supply mechanism is used for enabling the air curtain to generate a high-pressure air curtain so as to divide the tunnel model into at least two test areas, and the at least two test areas are provided with a plurality of monitoring sections which are arranged at intervals along the length direction of the tunnel model;
the data acquisition instrument comprises a temperature collector and/or a smoke concentration collector, wherein the temperature collector and/or the smoke concentration collector are respectively arranged on monitoring sections of the at least two test areas so as to measure temperature values and/or smoke concentration values at different monitoring sections, and thus temperature fields and/or smoke concentration fields in the at least two test areas are obtained through tests.
2. The tunnel high-pressure air curtain test device as claimed in claim 1, wherein the data acquisition instrument further comprises an anemoscope, and the anemoscope is disposed at the air curtain section to measure the wind speed value at the air curtain section and obtain the distribution rule of the wind speed.
3. The tunnel high-pressure air curtain test device as claimed in claim 1 or 2, wherein the air curtain comprises a main air pipe and a plurality of air injection pipes, the air injection pipes are communicated with the main air pipe,
the main air pipe is in an arch shape,
and the plurality of air spraying pipes are arranged on the main air pipe at intervals along the width direction of the tunnel model.
4. The high-pressure air curtain testing device for the tunnel according to claim 3, wherein the main air pipe and the plurality of air injection pipes are detachably connected.
5. The tunnel high pressure air curtain test apparatus of claim 1 or 2, wherein the air curtain comprises a first air curtain and a second air curtain;
the first air curtain and one part of the tunnel model construct a first test area under the condition of generating a high-pressure air curtain, and a temperature regulator and the temperature collector are arranged in the first test area;
and constructing a second test area by the second air curtain and the other part of the tunnel model under the condition of generating the high-pressure air curtain, wherein a smoke generator and the smoke concentration collector are arranged in the second test area.
6. The tunnel high pressure air curtain test apparatus of claim 5, wherein the second test area is transparent.
7. The tunnel high-pressure air curtain test device according to claim 1 or 2, wherein the air supply mechanism comprises an air compressor, an air compressor main pipe, an air compressor branch pipe, a high-pressure air storage tank and a high-pressure air supply pipe, the air compressor sequentially passes through the air compressor main pipe, the air compressor branch pipe, the high-pressure air storage tank and the high-pressure air supply pipe to provide air for the air curtain, and the pressure range of the air is 0.2 Mpa-1.0 Mpa.
8. The high-pressure air curtain testing device for the tunnel according to claim 7, wherein the high-pressure air supply pipe is provided with a valve, a pressure gauge and a flow meter.
9. A tunnel high-pressure air curtain test method is characterized by comprising the following steps:
making a tunnel model;
arranging an air curtain device in the tunnel model;
enabling the air curtain device to generate a high-pressure air curtain through an air supply mechanism so as to divide the tunnel model into at least two test areas, wherein the at least two test areas are provided with a plurality of monitoring sections which are arranged at intervals along the length direction of the tunnel model;
and respectively arranging a temperature collector and/or a smoke concentration collector on the monitoring sections of the at least two test areas to measure temperature values and/or smoke concentration values at different monitoring sections, so as to obtain temperature fields and/or smoke concentration fields in the at least two test areas through tests.
10. A tunnel high-pressure air curtain test system, which is characterized by comprising a processor and the tunnel high-pressure air curtain test device as claimed in any one of claims 1 to 8, wherein the processor is in communication connection with the data acquisition instrument.
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