CN112557694A - Wind speed monitoring device and method for large-section tunnel - Google Patents

Wind speed monitoring device and method for large-section tunnel Download PDF

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Publication number
CN112557694A
CN112557694A CN202011424519.4A CN202011424519A CN112557694A CN 112557694 A CN112557694 A CN 112557694A CN 202011424519 A CN202011424519 A CN 202011424519A CN 112557694 A CN112557694 A CN 112557694A
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CN
China
Prior art keywords
anemometer
tunnel
wind speed
section
frame
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Pending
Application number
CN202011424519.4A
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Chinese (zh)
Inventor
黄飞
李树清
李波
袁志刚
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Application filed by Hunan University of Science and Technology filed Critical Hunan University of Science and Technology
Priority to CN202011424519.4A priority Critical patent/CN112557694A/en
Publication of CN112557694A publication Critical patent/CN112557694A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D63/00—Motor vehicles or trailers not otherwise provided for
    • B62D63/02—Motor vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28—Undercarriages for supports with one single telescoping pillar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
    • F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments

Abstract

The invention discloses a large-section tunnel wind speed monitoring device which comprises a frame, a power device for driving the frame to move, an anemometer arranged on the frame and a lifting device for driving the anemometer to lift relative to the frame, wherein the lifting device is used for driving the anemometer to lift in a reciprocating mode when the frame moves along a tunnel. The invention also discloses a method for monitoring the wind speed of the large-section tunnel, which moves the wind speed monitoring device of the large-section tunnel from one side of the tunnel to the other side of the tunnel and simultaneously moves the wind speed monitoring device of the large-section tunnel from one side of the tunnel to the other side of the tunnelThe lifting device on the wind speed monitoring device of the large-section tunnel drives the anemometer to lift and descend in a reciprocating manner until the anemometer reaches the other side of the tunnel; recording the reading n measured by the anemometer and the time t required by the reciprocating lifting of the anemometer, and calculating the average wind speed V of the large-section tunnel according to a corresponding formulaAverage. The device and the method for monitoring the wind speed of the large-section tunnel have the advantage that the obtained data are more accurate.

Description

Wind speed monitoring device and method for large-section tunnel
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of tunnel wind speed monitoring, in particular to a large-section tunnel wind speed monitoring device and method.
[ background of the invention ]
The tunnel construction is a controllable project for traffic construction in mountain areas in China, and plays an important role in construction period and safety construction of the whole traffic construction project. At present, the tunnel construction in mountain areas mainly adopts a blasting method, namely, firstly blasting face surrounding rocks in a blasting mode, then excavating the rocks by adopting an excavator to form a naked tunnel contour line, then installing a steel arch frame and spraying concrete on the naked face by adopting a grouting machine to form the tunnel contour line with a certain shape. The tunnel construction method has been widely adopted due to the advantages of simple construction procedure, low cost, high tunneling speed and the like. However, the blast tunneling method has many disadvantages in tunnel construction. Firstly, a large amount of dust can be generated in blasting, dredging and guniting construction processes, and serious dust harm is caused to the tunnel construction environment. In order to prevent the dust problem in tunnel construction, ventilation is the most effective and widely adopted measure at present. Except for the division generated by the normal construction of the tunnel, toxic, harmful, flammable and explosive gases generated when the tunnel passes through a special section also need to be eliminated by increasing the ventilation mode.
In view of the special circumstances of tunnel construction, tunnel ventilation must satisfy two conditions: (1) the ventilation wind speed is suitable for the breathing of workers; (2) the ventilation air quantity can effectively remove dust and toxic and harmful gases. How to judge whether the ventilation of the tunnel can meet the two conditions is an important task of monitoring the ventilation of the tunnel. At present, an automatic wind speed sensor is mostly adopted for monitoring wind speed in real time in tunnel construction, namely a monitoring point is arranged on a certain section of a tunnel, and in order to not influence the access of a slag car and the like in the tunnel construction process, the wind speed monitoring point is usually arranged at the arch top of the tunnel; and then, calculating the air volume by taking the air speed at the point as the average air speed and taking the cross-sectional area of the tunnel at the point as the ventilation area. The method for monitoring the wind speed and the wind volume has an obvious defect that: the area of the cross section of the tunnel can reach more than one hundred square meters, and the wind speed at a certain point of the tunnel is obviously unreasonable as the average wind speed. Therefore, it is necessary to design a self-moving continuous automatic average wind speed detection device and method for large-section tunnels.
[ summary of the invention ]
The invention aims to provide a large-section tunnel wind speed monitoring device and method, which solve the problem of inaccurate wind speed data caused by monitoring wind speed by a single measuring point in the prior art.
In order to solve the above problems, the present invention provides the following technical solutions:
the large-section tunnel wind speed monitoring device comprises a frame, a power device for driving the frame to move, an anemometer arranged on the frame and a lifting device for driving the anemometer to lift relative to the frame, wherein the lifting device is used for driving the anemometer to lift in a reciprocating mode when the frame moves along a tunnel.
According to the wind speed monitoring device for the large-section tunnel, the anemometer is provided with the sensor for detecting the distance between the anemometer and the top of the tunnel.
The wind speed monitoring device for the large-section tunnel further comprises a timing device for detecting the time required by the reciprocating lifting of the anemometer.
According to the wind speed monitoring device for the large-section tunnel, the lifting device comprises the first connecting rod, the second connecting rod sleeved on the first connecting rod and the driving device used for driving the second connecting rod to move relative to the first connecting rod, and the anemometer is arranged on the second connecting rod.
According to the wind speed monitoring device for the large-section tunnel, the first connecting rod is hinged with the frame and can turn over relative to the frame.
According to the wind speed monitoring device for the large-section tunnel, the second connecting rod is provided with the tray for fixing the anemometer.
According to the wind speed monitoring device for the large-section tunnel, the driving device comprises a hydraulic system which drives the second connecting rod to reciprocate at a constant speed relative to the first connecting rod.
According to the wind speed monitoring device for the large-section tunnel, the touch screen and the microprocessor for man-machine interaction are arranged on the frame, and the microprocessor is electrically connected with the touch screen, the anemometer and the sensor.
A wind speed monitoring method for a large-section tunnel comprises the following steps:
step 1: moving the large-section tunnel wind speed monitoring device from one side of the tunnel to the other side of the tunnel, and driving the anemometer to reciprocate to lift by the lifting device on the large-section tunnel wind speed monitoring device until the anemometer reaches the other side of the tunnel;
step 2: recording a reading n measured by the anemometer and the time t required by the reciprocating lifting of the anemometer, and calculating the test speed v of the anemometer according to the value v which is n/t; then calculating A correction coefficient k according to the k ═ S-A)/S, wherein S is the cross section areA of the section of the tunnel, and A is the cross section areA of all barriers on the wind speed test section; finally according to formula VAverageCalculating to obtain the average wind speed V of the large-section tunnelAverage。
According to the method for monitoring the wind speed of the large-section tunnel, when the sensor detects that the distance between the anemometer and the top of the tunnel is smaller than the preset distance, the lifting device drives the anemometer to descend, and when the anemometer descends to the preset position, the lifting device drives the anemometer to ascend.
Compared with the prior art, the invention has the following advantages:
according to the large-section tunnel wind speed monitoring device and method provided by the invention, the frame is driven by the power device to drive the anemometer to move, and the lifting device drives the anemometer to reciprocate, so that the anemometer moves along the tunnel end surface in a zigzag track under the combined action of the power device and the lifting device, and thus data are obtained through continuous movement to calculate the average wind speed of the large-section tunnel.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is a schematic diagram of the motion trajectory of an anemometer according to an embodiment of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Referring to fig. 1 to 2, the present embodiment provides a wind speed monitoring device for a large cross-section tunnel.
The wind speed measuring device comprises a frame 1, a power device 2 for driving the frame 1 to move, an anemometer 3 arranged on the frame 1, and a lifting device 4 for driving the anemometer 3 to lift relative to the frame 1, wherein the lifting device 4 is used for driving the anemometer 3 to lift in a reciprocating mode when the frame 1 moves along a tunnel. According to the wind speed monitoring device for the large-section tunnel, the power device 2 drives the frame 1 to drive the anemometer 3 to move, and the lifting device 4 drives the anemometer 3 to reciprocate, so that the anemometer 3 moves along the tunnel end face in a zigzag track under the combined action of the power device 2 and the lifting device 4, and accordingly data are obtained through continuous movement to calculate the average wind speed of the large-section tunnel.
Further, the lifting device 4 includes a first connecting rod 41, a second connecting rod 42 sleeved on the first connecting rod 41, and a driving device 43 for driving the second connecting rod 42 to move relative to the first connecting rod 41, and the anemometer 3 is disposed on the second connecting rod 42, so that the structure is simple, and the operation is convenient.
Further, a tray 44 for fixing the anemometer 3 is arranged on the second connecting rod 42, so that the anemometer 3 is more stably installed.
Further, the first link 41 is hinged to the frame 1 and can be turned relative to the frame 1. When the detection is needed, the first connecting rod 41 is turned to be perpendicular to the frame 1, and when the detection is not needed, the first connecting rod 41 can be turned to be parallel to the top of the frame 1, so that the occupied space is greatly reduced, and the use is more convenient and practical.
Further, the driving device 43 includes a hydraulic system for driving the second connecting rod 42 to reciprocate at a constant speed relative to the first connecting rod 41. Of course, the driving device 43 may be an electric driving device, and the embodiment uses a hydraulic system to drive, so that the reciprocating lifting speed of the anemometer 3 is more uniform, which is beneficial to improving the accuracy of data.
Furthermore, a sensor 31 for detecting the distance between the anemometer 3 and the top of the tunnel is arranged on the anemometer 3, a touch screen 6 and a microprocessor 7 for man-machine interaction are arranged on the frame 1, and the microprocessor 7 is electrically connected with the touch screen 6, the anemometer 3 and the sensor 31. When the test is started, an operator can input parameters such as the speed of the power device 2 driving the frame 1 to move and the speed of the lifting device 4 driving the anemoscope 3 to reciprocate through the touch screen 6, the parameters are transmitted to the microprocessor 7, so that the power device 2 and the lifting device 4 are driven to move according to the specified speed, more accurate data are obtained, in the moving process, the sensor 31 feeds back signals to the microprocessor 7, the microprocessor 7 sends out corresponding instructions to drive the lifting device 4 to switch to drive the anemoscope 3 to ascend or descend, the process of monitoring the wind speed is more automatic, the operation is more convenient, and the obtained data are more accurate.
Further, a timing device 5 for detecting the time required by the reciprocating lifting of the anemometer 3 is also included. Of course, the timing device 5 can be measured by a hand of a tester, in this embodiment, the timing device 5 is installed on the frame 1 and electrically connected with the power device 2 and the lifting device 4, when the power device 2 and the lifting device 4 are started, the timing device 5 starts timing, and when the power device 2 and the lifting device 4 are stopped, the timing device 5 stops timing, so as to improve the accuracy of data.
The embodiment also provides a wind speed monitoring method for the large-section tunnel, which comprises the following steps:
step 1: moving the large-section tunnel wind speed monitoring device from one side of the tunnel to the other side of the tunnel, and simultaneously driving the anemometer 3 to reciprocate by the lifting device 4 on the large-section tunnel wind speed monitoring device until the anemometer reaches the other side of the tunnel;
step 2: recording a reading n measured by the anemometer 3, wherein the unit is m, and the time t required by the reciprocating lifting of the anemometer 3, and calculating the test speed v of the anemometer 3 according to the value of v-n/t; then calculating A correction coefficient k according to the k ═ S-A)/S, wherein S is the cross-sectional areA of the tunnel section and the unit is m2And A is the cross-sectional area of all obstacles on the wind speed test section, including the detection device and other deposits, and is expressed in m2(ii) a Finally according to formula VAverageCalculating to obtain the average wind speed V of the large-section tunnelAverage。
Specifically, when the sensor 31 detects that the distance between the anemometer 3 and the top of the tunnel is less than the preset distance, the lifting device 4 drives the anemometer 3 to descend, and when the anemometer 3 descends to the preset position, the lifting device 4 drives the anemometer 3 to ascend.
As shown in fig. 2, the vehicle frame 1 drives the anemometer 3 to move forward along the tunnel road base surface 81, the lifting device 4 drives the anemometer 3 to ascend, when the sensor 31 on the anemometer 3 detects that the distance between the anemometer 3 and the tunnel top wall surface 82 is smaller than the preset distance, a signal is sent to the microprocessor 7, the microprocessor 7 receives the signal and sends a command to drive the lifting device 4 to drive the anemometer 3 to descend, when the anemometer 3 descends to the preset position, the microprocessor 7 receives the signal and sends a command to drive the lifting device 4 to ascend, and the reciprocating is carried out in the zigzag track 9 shown in fig. 2 until the anemometer reaches the other side of the tunnel. In this embodiment, the preset distance is 10cm to 15cm, the preset position is the position of the anemometer 3 when the second connecting rod 42 moves to the lowest point relative to the first connecting rod 41, and the preset position can be measured by a photoelectric switch or a travel switch.
In this embodiment, when the wind speed monitoring device for a large cross-section tunnel reaches the other side of the tunnel, the anemometer 3 feeds back a reading n to the microprocessor 7, and the timing device 5 feeds back a time t to the microprocessor 7, and the tester inputs S as the cross-sectional area of the tunnel cross-section and the cross-sectional areas a of all barriers on the wind speed testing cross-section, and finally the micro-pointThe processor 7 calculates the final average wind speed VAverageAnd show for the tester through touch-sensitive screen 6, the simple operation need not artifical calculation, and the data accuracy is high.
According to the wind speed monitoring method for the large-section tunnel, the power device 2 drives the frame 1 to drive the anemometer 3 to move, and the lifting device 4 drives the anemometer 3 to reciprocate, so that the anemometer 3 moves along the tunnel end face in a zigzag track under the combined action of the power device 2 and the lifting device 4, and accordingly data are obtained through continuous movement to calculate the average wind speed of the large-section tunnel.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a big section tunnel wind speed monitoring devices which characterized in that: the wind speed measurement device comprises a frame (1), a power device (2) for driving the frame (1) to move, an anemometer (3) arranged on the frame (1), and a lifting device (4) for driving the anemometer (3) to lift relative to the frame (1), wherein the lifting device (4) is used for driving the anemometer (3) to lift in a reciprocating manner when the frame (1) moves along a tunnel.
2. The large-section tunnel wind speed monitoring device according to claim 1, wherein: and a sensor (31) for detecting the distance between the anemometer (3) and the top of the tunnel is arranged on the anemometer (3).
3. The large-section tunnel wind speed monitoring device according to claim 1, wherein: the wind meter also comprises a timing device (5) for detecting the time required by the reciprocating lifting of the anemometer (3).
4. The large-section tunnel wind speed monitoring device according to claim 1, wherein: the lifting device (4) comprises a first connecting rod (41), a second connecting rod (42) sleeved on the first connecting rod (41) and a driving device (43) used for driving the second connecting rod (42) to move relative to the first connecting rod (41), and the anemometer (3) is arranged on the second connecting rod (42).
5. The large-section tunnel wind speed monitoring device according to claim 4, wherein: the first connecting rod (41) is hinged with the frame (1) and can turn relative to the frame (1).
6. The large-section tunnel wind speed monitoring device according to claim 4, wherein: and a tray (44) for fixing the anemometer (3) is arranged on the second connecting rod (42).
7. The large-section tunnel wind speed monitoring device according to claim 4, wherein: the driving device (43) comprises a hydraulic system which drives the second connecting rod (42) to reciprocate at a constant speed relative to the first connecting rod (41).
8. The large-section tunnel wind speed monitoring device according to claim 2, wherein: the wind power generation vehicle is characterized in that a touch screen (6) for man-machine interaction and a microprocessor (7) are arranged on the vehicle frame (1), and the microprocessor (7) is electrically connected with the touch screen (6), the anemometer (3) and the sensor (31).
9. A method for monitoring the wind speed of a large-section tunnel is characterized by comprising the following steps:
step 1: moving the large-section tunnel wind speed monitoring device from one side of the tunnel to the other side of the tunnel, and simultaneously driving the anemometer (3) to reciprocate by the lifting device (4) on the large-section tunnel wind speed monitoring device until the anemometer reaches the other side of the tunnel;
step 2: recording the reading n measured by the anemometer (3) and the time t required by the reciprocating lifting of the anemometer (3), and calculating the test of the anemometer (3) according to v-n/tA speed v; then calculating A correction coefficient k according to the k ═ S-A)/S, wherein S is the cross section areA of the section of the tunnel, and A is the cross section areA of all barriers on the wind speed test section; finally according to formula VAverageCalculating to obtain the average wind speed V of the large-section tunnelAverage。
10. The method for monitoring the wind speed of the large-section tunnel according to claim 9, wherein the method comprises the following steps: when the sensor (31) detects that the distance between the anemometer (3) and the top of the tunnel is smaller than the preset distance, the lifting device (4) drives the anemometer (3) to descend, and when the anemometer (3) descends to the preset position, the lifting device (4) drives the anemometer (3) to ascend.
CN202011424519.4A 2020-12-08 2020-12-08 Wind speed monitoring device and method for large-section tunnel Pending CN112557694A (en)

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Application Number Priority Date Filing Date Title
CN202011424519.4A CN112557694A (en) 2020-12-08 2020-12-08 Wind speed monitoring device and method for large-section tunnel

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Application Number Priority Date Filing Date Title
CN202011424519.4A CN112557694A (en) 2020-12-08 2020-12-08 Wind speed monitoring device and method for large-section tunnel

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06149363A (en) * 1992-10-30 1994-05-27 Shinryo Corp Blown air inspecting robot for air conditioning
CN105334345A (en) * 2015-11-10 2016-02-17 中国安全生产科学研究院 Subway tunnel section wind speed measurement device
CN207675783U (en) * 2018-01-18 2018-07-31 湖南科技大学 A kind of tunnel wind speed measuring device
CN109931977A (en) * 2019-01-02 2019-06-25 孔维强 A kind of equipment that automatic moving detects air parameter and generates 3-D image
CN210427617U (en) * 2019-11-06 2020-04-28 云南省公路科学技术研究院 Highway tunnel section wind speed detection auxiliary device
CN210894399U (en) * 2019-11-16 2020-06-30 广东中交纵横建设咨询有限公司 Portable ventilation wind speed detection device for tunnel

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06149363A (en) * 1992-10-30 1994-05-27 Shinryo Corp Blown air inspecting robot for air conditioning
CN105334345A (en) * 2015-11-10 2016-02-17 中国安全生产科学研究院 Subway tunnel section wind speed measurement device
CN207675783U (en) * 2018-01-18 2018-07-31 湖南科技大学 A kind of tunnel wind speed measuring device
CN109931977A (en) * 2019-01-02 2019-06-25 孔维强 A kind of equipment that automatic moving detects air parameter and generates 3-D image
CN210427617U (en) * 2019-11-06 2020-04-28 云南省公路科学技术研究院 Highway tunnel section wind speed detection auxiliary device
CN210894399U (en) * 2019-11-16 2020-06-30 广东中交纵横建设咨询有限公司 Portable ventilation wind speed detection device for tunnel

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