CN109506720B - Device and method for accurately measuring air quantity of large-section roadway - Google Patents
Device and method for accurately measuring air quantity of large-section roadway Download PDFInfo
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- CN109506720B CN109506720B CN201811534391.XA CN201811534391A CN109506720B CN 109506720 B CN109506720 B CN 109506720B CN 201811534391 A CN201811534391 A CN 201811534391A CN 109506720 B CN109506720 B CN 109506720B
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 52
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 238000005192 partition Methods 0.000 claims abstract description 29
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 54
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
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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
- G01P11/00—Measuring average value of speed
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention provides a large-section tunnel air quantity accurate measurement device and a method, wherein the device adopts a bidirectional groove rail, the bidirectional groove rail is divided into a track groove above the groove rail and a track groove below the groove rail through a groove rail partition board, a chain circularly moves in the two track grooves, meanwhile, a driving wheel and a driven wheel are arranged at two end parts of a groove rail unit, the driving wheel drives the chain to rotate, the chain further drives a clamping seat to rotate, an air meter is arranged on the clamping seat, the air meter circularly moves on the section of a tunnel, and the movement track of the air meter can cover a larger area of the section of the tunnel; the device can be conveniently recovered and detached after the measurement is finished. Compared with the prior art, the invention has the advantages of accurate measurement of air quantity, convenient operation, no influence on normal operation and passing functions of a roadway, lower overall manufacturing cost, common materials used by the device in mine enterprises, and easy manufacture and processing.
Description
Technical Field
The invention belongs to the technical field of coal mining, and particularly relates to a device and a method for accurately measuring the air quantity of a large-section roadway.
Background
In the safety production of coal mines, the work of 'three-way one prevention' plays an important role, wherein the ventilation work in the tunnel is of great importance, and in order to master whether the wind speed and the wind quantity in the tunnel accord with the production design and the requirements of 'coal mine safety regulations', the work of wind measurement in the tunnel needs to be carried out in the tunnel.
The current wind measuring principle of the roadway is that the roadway is divided into a plurality of parts, wind speed of each part is tested by a wind meter held by a wind measurer, the wind meter is generally moved from one section of the roadway to the other end at a constant speed within one minute, the wind meter held by the wind measurer is moved in the roadway according to M type in the measuring process, the wind speed of the roadway is calculated according to average wind speed, the maximum height which can be measured by the method is the height of a human body plus the length of a single arm is generally not more than 2.5M, the measurement cannot be carried out for an area above 2.5M, meanwhile, along with the gradual lifting of the productivity of an advanced mine, the section of the roadway is enlarged along with the gradual lifting, the wind quantity of entering and returning wind of the roadway is also increased continuously, the wind flow in the roadway is in a turbulent state, the wind speed in the middle part of the roadway is the maximum, the wind speed of the roadway is the lowest, and for the roadway with the wind speed above 2.5M high roadway, the wind speed in the area above 2.5M cannot be measured, the measurement result with larger error cannot be obtained, and the technical defect that the measurement error is larger the higher the roadway is avoided.
In order to reduce the measurement error, when measuring the area with the height of more than 2.5m, the current solutions mostly use a handheld extension bar, and the wind meter is fixed on the handheld extension bar to perform measurement, namely, the wind meter is used in a manner of being held when measuring the area with the height of less than 2.5m, and the wind meter is used in a manner of being held when measuring the area with the height of more than 2.5 m; however, the two modes cannot ensure measurement continuity during the reciprocating switching, the time spent in measurement is increased, measurement errors are inevitably increased, and in addition, the measurement habit, the body shape and the movement speed of each anemometer are different, and all factors have influence on the measurement result.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The invention aims to overcome the technical defects that the air quantity cannot be measured or the measurement result is not accurate enough when the roadway with higher roadway height is manually measured in the prior art, and simultaneously can overcome the problems that the measurement result cannot guarantee the continuity of the test, the test time is longer, the measurement error is larger and the like in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a big section tunnel amount of wind accurate measurement device and method, measuring device sets up on the fracture surface in tunnel, measuring device includes:
The fixing mechanism is positioned on the section of the roadway, and is arranged on the roadway wall of the section through a connecting ring and used for providing fixing and supporting;
the driving mechanism is positioned on the fixing mechanism and used for providing rotary power;
the measuring mechanism is positioned on the fixing mechanism, and is driven by the driving mechanism to move on the fixing mechanism and used for measuring the air quantity at the section of the roadway.
As described above, the accurate measuring device for the air volume of the large-section roadway, preferably, the fixing mechanism includes:
The bidirectional groove rail is arranged on the roadway wall of the section of the roadway through the connecting ring, is circuitously distributed on the section of the roadway, comprises a groove rail partition plate and a track groove, and comprises an upper track groove positioned above the track partition plate and a lower track groove positioned below the track partition plate;
and one side of the connecting ring is connected to the side wall of the bidirectional grooved rail, and the other side of the connecting ring is connected to the roadway wall.
As described above, the accurate measuring device for the air volume of the large-section roadway, preferably, the driving mechanism includes:
the driving motor is positioned at one end of the bidirectional grooved rail and is used for providing power;
The driving wheel is positioned on the bidirectional grooved rail at one end of the driving motor, and the driving wheel rotates under the drive of the driving motor;
The driven wheel is positioned at the other end of the bidirectional grooved rail;
The chain is located in the track groove of the bidirectional groove rail, the chain is circularly arranged in the upper track groove and the lower track groove of the bidirectional groove rail, the chain comprises a chain below the groove rail partition plate and a chain above the groove rail partition plate, the chain above the groove rail partition plate winds the driving wheel and the driven wheel and then enters the lower track groove, the chain below the groove rail partition plate winds the driving wheel and the driven wheel and then enters the upper track groove, and the chain above the groove rail partition plate and the chain below the groove rail partition plate are driven by the driving wheel and the driven wheel to circularly move in the bidirectional groove rail.
As described above, the accurate measuring device for the air volume of the large-section roadway, preferably, the measuring mechanism includes:
The clamping seat is arranged on a single chain unit of the chain and is positioned in the track groove;
the bottom end of the connecting rod is connected to the clamping seat, and the upper part of the connecting rod extends out of the track groove;
the wind meter is connected to the top end of the connecting rod and used for measuring the air quantity on the section of the roadway.
As described above, the accurate measuring device for the air volume of the large-section roadway, preferably, the fixing mechanism includes: the bidirectional grooved rail comprises a plurality of grooved rail units, the grooved rail units are distributed in an S shape on the section, the head and the tail of two adjacent grooved rail units are hinged through a rotating shaft, the rotating shaft is positioned between the head and the tail of the two adjacent grooved rail units, and a chain above the grooved rail partition plate is wound on the rotating shaft.
As described above, the accurate measurement device for the air volume of the large-section roadway, preferably, the fixing mechanism further includes:
The connecting piece comprises an upper connecting piece and a lower connecting piece, the upper connecting piece is connected to the top plate of the roadway, and the lower connecting piece is connected to the middle part of the lowest grooved rail unit;
and the upper end and the lower end of the lifting rope are respectively connected with the upper connecting piece and the lower connecting piece.
As described above, the accurate measuring device for the air volume of the large-section roadway is characterized in that the slot rail unit comprises a straight rail part and a bent rail part, the bent rail part is connected to the straight rail part, the bent rail part is positioned at the joint between two adjacent slot rail units, the connecting ring is arranged on the inner side wall of the bent rail part, and the rotating shaft is arranged at the bent rail parts of the two slot rail units which are adjacent end to end.
As described above, in the accurate measuring device for the air volume of the large-section roadway, preferably, a hook is arranged on one side of the connecting ring, and the connecting ring is arranged on the roadway through the hook.
The air volume measuring method of the large-section roadway air volume accurate measuring device comprises the following steps:
s1, mounting a fixing mechanism: the fixing mechanism is arranged on the section of the roadway;
S2, starting a driving mechanism: starting a driving motor, and driving the measuring mechanism to run on the fixed mechanism by the driving motor;
s3, measuring the air quantity: the wind meter is driven by the chain to circularly move in the track groove of the bidirectional groove rail, the wind meter records the relevant data of the wind quantity in the movement track, and after the measurement is finished, the average wind speed on the section of the roadway is calculated or read according to the relevant data of the wind quantity recorded by the wind meter.
As described above, the air volume measurement method of the accurate measurement device for large-section tunnel air volume, preferably, the step S1 specifically includes the following steps:
s101, expanding a groove rail unit of a bidirectional groove rail;
s102, fixing the grooved rail unit on the inner wall of a roadway by using a hanging ring;
s103, connecting an upper connecting piece to a roadway top plate, and then connecting a lower connecting piece to a lowest grooved rail unit of the bidirectional grooved rail;
and in the step S3, the movement track of the wind meter covers the S-shaped area of the section of the whole roadway.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
According to the invention, the bidirectional groove rail is arranged on the section of the roadway, the chain capable of circularly moving is arranged in the bidirectional groove rail, the clamping seat with the air meter is arranged on the chain, the driving motor drives the clamping seat to circularly move, and the air meter can accurately measure the section of the roadway.
Compared with the prior art, the invention has at least the following technical effects:
1) The measurement of the air quantity is accurate: because the wind meter moves along the track groove of the bidirectional groove rail, the bidirectional groove rail is distributed in an S shape or a zigzag shape on the section of the roadway, the wind meter can cover the section of the whole roadway during measurement, and meanwhile, the wind meter does not rely on manual movement during movement, so that the accuracy of the measurement data of the wind meter is ensured;
2) The operation is convenient: when in connection, the connecting piece is directly hung on the wall of the roadway through the connecting ring, and the upper connecting piece is directly hung on the top plate of the roadway, so that the arrangement is quick and convenient;
3) The normal operation and the passing function of the roadway are not affected: the device is unfolded and fixed when the measurement is needed, and can be quickly disassembled and recovered when the measurement is finished, and meanwhile, more space is not needed to be occupied when the device is placed;
4) The whole cost of manufacture is lower, and the material that this device used is the comparatively common material in the enterprise in ore deposit, and is comparatively easy preparation and processing.
Drawings
FIG. 1 is a schematic diagram of a measuring device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is a schematic view showing the positional relationship between a grooved rail partition and a rotating shaft and a chain in an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a positional relationship between a clamping seat and a grooved rail unit according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a positional relationship between a cassette and a chain unit in an embodiment of the invention.
In the figure: 1. roadway; 2. a lower connecting piece; 3. driven wheel; 4. a driving wheel; 5. a driving motor; 6. A wind meter; 7. an upper connecting piece; 8. a halyard; 9. a bidirectional grooved rail; 901. a grooved rail partition; 10. a rotating shaft; 11. a connecting ring; 12. a chain; 1201. a chain below the grooved rail partition; 1202. a chain above the grooved rail partition; 13. a connecting rod; 14. a clamping seat; 15. and a chain unit.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
As shown in fig. 1 to 6, the present invention provides a device and a method for accurately measuring the air volume of a large-section tunnel, wherein the measuring device is arranged on the section of the tunnel 1, and the measuring device comprises:
As shown in fig. 1, the fixing mechanism is located on the section of the roadway 1, and the fixing mechanism is arranged on the roadway wall of the section through a connecting ring 11, so as to provide fixing and supporting, and the connecting ring mainly plays a role in fixing in specific implementation, and the connecting ring can meet the requirements as long as being hung on the roadway due to the light weight of the bidirectional grooved rail; in this embodiment, preferably, the fixing mechanism includes: the bidirectional groove rail 9 is arranged on the roadway wall of the roadway section through the connecting ring 11, the bidirectional groove rail 9 is distributed on the section of the roadway 1 in a roundabout way, namely the bidirectional groove rail 9 is distributed on the section of the roadway 1 in a zigzag or S-like shape, namely the bidirectional groove rail 9 is sequentially connected with the roadway walls on two sides from the uppermost end of the bidirectional groove rail 9 downwards, so long as the bidirectional groove rail 9 can fully cover the S-shaped area or the zigzag area of the section of the roadway 1, when a measuring point is selected, the bidirectional groove rail 9 with a more representative measuring point can be selected, the bidirectional groove rail 9 comprises a groove rail partition 901 and a track groove, and the track groove comprises an upper track groove above the track partition and a lower track groove below the track partition.
The connecting ring 11, connecting ring 11 position one side is connected on the lateral wall of two-way grooved rail 9, the opposite side of connecting ring 11 is connected on the roadway 1 wall, preferably, one side of connecting ring 11 is provided with the couple, connecting ring 11 sets up on roadway 1 through the couple, or keep away from the connecting ring 11 opening setting of one end of two-way grooved rail 9, the opening part of connecting ring 11 is provided with the couple, the couple can hang on the anchor net of roadway 1 or the roadway 1 wall that has the anchor eye, because two-way grooved rail 9 adds the quality of measuring device itself lighter, connecting ring 11 only can hang on roadway 1 wall fix.
As shown in fig. 2, further, the bidirectional grooved rail 9 includes a plurality of grooved rail units, the plurality of grooved rail units are S-shaped or zigzag distributed on the section, the head and the tail between two adjacent grooved rail units are hinged through a rotating shaft 10, the rotating shaft 10 can be arranged at the end of two adjacent grooved rail units through bearings, the rotating shaft 10 is located between the head and the tail of two adjacent grooved rail units, and the chain 1201 above the grooved rail partition is wound on the rotating shaft 10. The grooved rail unit comprises a straight rail part and a bent rail part, the bent rail part is connected to the straight rail part, the bent rail part is positioned at the joint between two adjacent grooved rail units, the connecting ring 11 is arranged on the inner side wall of the bent rail part, and the rotating shaft 10 is arranged at the bent rail parts of two grooved rail units which are adjacent end to end.
Further, the fixing mechanism further includes: the connecting piece comprises an upper connecting piece 7 and a lower connecting piece 2, wherein the upper connecting piece 7 is connected to the top plate of the roadway 1, and the lower connecting piece 2 is connected to the middle part of the lowest grooved rail unit; the lifting rope 8, the upper end and the lower end of the lifting rope 8 are respectively connected on the upper connecting piece 7 and the lower connecting piece 2, the combination of the upper connecting piece 7, the lower connecting piece 2 and the lifting rope 8 can assist in fixing the bidirectional grooved rail 9, the upper connecting piece 7 can be hung on an anchor net of a top plate of the roadway 1 or in an anchor hole of the roadway 1, as long as the upper connecting piece 7 can be fixed on the top plate of the roadway, the lifting rope 8 can also be a telescopic rod consisting of telescopic joints, the upper end and the lower end of the telescopic rod are respectively connected on the upper connecting piece 7 and the lower connecting piece 2, a knob or a valve body capable of being locked is arranged on the telescopic rod, and the lifting rope or the telescopic rod and other telescopic mechanisms can meet the requirement of assisting in fixing the fixing mechanism due to the light weight of the whole device.
The driving mechanism is positioned on the fixing mechanism and used for providing rotary power. In this embodiment, preferably, the driving mechanism includes: the driving motor 5, driving motor 5 is located the one end of two-way grooved rail 9 for provide power, driving motor 5 can be located the lateral wall of two-way grooved rail 9 of action wheel 4 one side, driving motor 5's drive shaft is connected with the axis of rotation transmission of action wheel 4, driving motor 5 can drive the driving wheel 4 and rotate, simultaneously in order to conveniently control driving motor 5, driving motor 5 can select the model that has wireless control button when selecting, also can select driving motor 5 that has control circuit, control circuit down extends to the operator and can touch the height of operation, and the control wire can not influence measuring mechanism's normal operating simultaneously.
The driving wheel 4, the driving wheel 4 is located on the bidirectional grooved rail 9 at one end of the driving motor 5, the driving wheel 4 rotates under the driving of the driving motor 5, the driving wheel is provided with gear teeth matched with the chain unit, and the chain 12 can be wound on the driving wheel.
The driven wheel 3, the driven wheel 3 is located the other end of two-way grooved rail 9, and action wheel 4 and driven wheel 3 all rotate through the bearing and set up on two-way grooved rail 9, are also provided with the teeth of a cogwheel that chain 12 can wind the design on the driven wheel 3 simultaneously.
As shown in fig. 3 and 4, the chain 12 is located in the track groove of the bidirectional groove rail 9, the chain 12 is circularly arranged in the track groove above the bidirectional groove rail 9 and the track groove below the bidirectional groove rail 9, the chain 12 comprises a chain 1201 below the groove rail baffle and a chain 1202 above the groove rail baffle, the chain 1202 above the groove rail baffle is wound around the driving wheel 4 and the driven wheel 3 and then enters the lower track groove, the chain 1201 below the groove rail baffle is wound around the driving wheel 4 and the driven wheel 3 and then enters the upper track groove, the chain 1202 above the groove rail baffle and the chain 1201 below the groove rail baffle are circularly moved in the bidirectional groove rail 9 under the driving of the driving wheel 4 and the driven wheel 3, namely the chain 12 enters the track groove above the groove rail baffle 901, then the upper end and the lower end of the bidirectional groove rail 9 are provided with the driving wheel 4 and the driven wheel 3, the chain 12 firstly moves in the track groove above the groove baffle 901, then moves in the track groove above the groove 12, then moves in the groove 10, and the adjacent to the groove 12 groove is formed, and then moves in the groove 10 groove, and the groove is formed by the adjacent groove 12, and the chain is completely.
The measuring mechanism is located fixed establishment, and the measuring mechanism moves on fixed establishment under actuating mechanism's drive for the measurement of tunnel 1 section department amount of wind, preferably, in this embodiment, measuring mechanism includes: the clamping seat 14 is arranged on a single chain 12 unit of the chain 12, as shown in fig. 6, the clamping seat 14 is positioned in the track groove, the bottom of the clamping seat 14 can be provided with a connecting hole, then the chain 12 unit is connected with the clamping seat 14 through bolts or other connecting bodies which can be fixedly connected by the connecting hole, and the clamping seat 14 can not influence the normal operation of the chain 12 and the rotation around the rotating shaft 10 or the driving wheel 4 and the driven wheel 3 because the clamping seat 14 is arranged on the single chain 12 unit.
As shown in fig. 5, the connecting rod 13, the bottom of the connecting rod 13 is connected to the clamping seat 14, the upper portion of the connecting rod 13 extends out of the track groove, the connecting rod 13 can also select a telescopic connecting rod 13 with a locking mechanism, so that the height of the connecting rod 13 can be adjusted, when the distance between two adjacent groove rail units is too small after being unfolded, the length of the connecting rod 13 can be adjusted to carry out adaptive adjustment, and the contact between the wind meter 6 at the upper end of the connecting rod 13 and the groove rail units above is avoided.
The air meter 6 is connected to the top end of the connecting rod 13 and is used for measuring the air quantity on the section of the roadway 1.
The measuring method comprises the following steps: s1, mounting a fixing mechanism: the fixing mechanism is arranged on the section of the roadway 1;
s2, starting a driving mechanism: and starting the driving motor 5, and driving the measuring mechanism to run on the fixing mechanism by the driving motor 5.
And S101, expanding the groove rail units of the bidirectional groove rail 9.
S102, fixing the grooved rail unit on the inner wall of the roadway 1 by using a hanging ring.
S103, connecting the upper connecting piece 7 to the top plate of the roadway 1, and then connecting the lower connecting piece 2 to the lowest grooved rail unit of the bidirectional grooved rail 9.
S3, measuring the air quantity: in the specific measurement, the current wind meter 6 is generally of two types, one is a mechanical wind meter 6 similar to a stopwatch and the other is an electronic wind meter 6, so that the measurement of the wind volume can be performed by adopting the following two methods, namely, the first method: when the air meter 6 is of an electronic type, the air meter 6 is driven by a chain to circularly move in a track groove of the bidirectional groove rail, the air meter automatically records air volume data in the moving track, and after measurement is finished, the air volume data is directly read on the air meter 6, so that the air volume data in a tunnel section is obtained.
The second method is as follows: when the air meter 6 is of a mechanical type, the air meter 6 is driven by a chain to circularly move in a track groove of the bidirectional groove rail, the air meter 6 records air volume data in a movement track, and after the measurement is finished, the average air speed on the section of the roadway is calculated according to the air volume related data recorded by the air meter 6 and a calculation formula attached to a specification of the air meter. Wherein the movement track of the stroke table in the step S3 covers the S-shaped area or the zigzag area of the section of the whole roadway 1. The air volume value thus measured is representative.
Specifically when the measurement of amount of wind, at first fix two-way grooved rail 9 on the section of tunnel 1 through go up connecting piece 7 and lower connecting piece 2 and connect respectively on tunnel 1 roof and the grooved rail unit of lower extreme, then start driving motor 5, the tuber flee 6 carries out cyclic motion on two-way grooved rail 9 under the drive of cassette 14, the amount of wind of measuring point is recorded to the in-process of motion, after the side face work is finished, can be comparatively convenient withdraw whole measuring device, can not influence the normal passing function of tunnel 1. To sum up, this measuring device's whole measurement process need not manual intervention, avoids manual operation error, can realize the measurement of once only full tunnel section, and the distribution is comparatively even, and the test procedure is continuous at uniform velocity, can cover all regions of tunnel section for measuring result's precision can be guaranteed, and this device has the contractibility simultaneously, and normal expansion is fixed when using, also can comparatively quick dismantlement is retrieved after measuring, can not influence the normal operation and the function of passing through in tunnel.
Furthermore, after the device is rotated for 90 degrees in the section of the roadway, the air quantity can be accurately measured by adopting the measuring method, and the mode is simply to replace the position of the device, so that the mode is also within the protection scope of the invention.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. Accurate measuring device of big section tunnel amount of wind, measuring device sets up on the section in tunnel, its characterized in that, measuring device includes:
The fixing mechanism is positioned on the section of the roadway, and is arranged on the roadway wall of the section through a connecting ring and used for providing fixing and supporting;
the driving mechanism is positioned on the fixing mechanism and used for providing rotary power;
the measuring mechanism is positioned on the fixing mechanism, and driven by the driving mechanism to move on the fixing mechanism and used for measuring the air quantity at the section of the roadway;
The fixing mechanism includes: the bidirectional groove rail is arranged on the roadway wall of the section of the roadway through the connecting ring, is circuitously distributed on the section of the roadway, comprises a groove rail partition plate and a track groove, and comprises an upper track groove positioned above the track partition plate and a lower track groove positioned below the track partition plate;
One side of the connecting ring is connected to the side wall of the bidirectional grooved rail, and the other side of the connecting ring is connected to the roadway wall;
the driving mechanism includes: the driving motor is positioned at one end of the bidirectional grooved rail and is used for providing power;
The driving wheel is positioned on the bidirectional grooved rail at one end of the driving motor and is driven by the driving motor to rotate;
The driven wheel is positioned at the other end of the bidirectional grooved rail;
The chain is positioned in the track groove of the bidirectional groove rail, the chain is circularly arranged in the upper track groove and the lower track groove of the bidirectional groove rail, the chain comprises a chain below a groove rail partition plate and a chain above the groove rail partition plate which are integrally structured, the chain above the groove rail partition plate winds a driving wheel and a driven wheel and then enters the lower track groove, the chain below the groove rail partition plate winds the driving wheel and the driven wheel and then enters the upper track groove, and the chain above the groove rail partition plate and the chain below the groove rail partition plate are driven by the driving wheel and the driven wheel to circularly move in the bidirectional groove rail;
The fixing mechanism includes: the bidirectional grooved rail comprises a plurality of grooved rail units, the grooved rail units are distributed in an S shape on the section, the head and the tail of each two adjacent grooved rail units are hinged through a rotating shaft, the rotating shaft is positioned between the head and the tail of each two adjacent grooved rail units, and a chain above the grooved rail partition plate is wound on the rotating shaft;
the fixing mechanism further includes: the connecting piece comprises an upper connecting piece and a lower connecting piece, the upper connecting piece is connected to the top plate of the roadway, and the lower connecting piece is connected to the middle part of the lowest grooved rail unit;
The upper end and the lower end of the lifting rope are respectively connected to the upper connecting piece and the lower connecting piece;
The groove rail unit comprises a straight rail part and a bent rail part, the bent rail part is connected to the straight rail part, the bent rail part is positioned at the joint between two adjacent groove rail units, the connecting ring is arranged on the inner side wall of the bent rail part, and the rotating shaft is arranged at the bent rail parts of the two groove rail units which are adjacent end to end;
A hook is further arranged on one side of the connecting ring, and the connecting ring is fixed on a roadway through the hook;
the measuring mechanism includes: the clamping seat is arranged on a single chain unit of the chain and is positioned in the track groove;
the bottom end of the connecting rod is connected to the clamping seat, and the upper part of the connecting rod extends out of the track groove;
the wind meter is connected to the top end of the connecting rod and used for measuring the air quantity on the section of the roadway.
2. The air volume measuring method of the accurate measuring device for the air volume of the large-section roadway according to claim 1, wherein the air volume measuring method comprises the following steps:
s1, mounting a fixing mechanism: the fixing mechanism is arranged on the section of the roadway;
S2, starting a driving mechanism: starting a driving motor, and driving the measuring mechanism to operate on the fixing mechanism by the driving motor;
S3, measuring the air quantity: the wind meter is driven by the chain to circularly move in the track groove of the bidirectional groove rail, the wind meter records relevant wind quantity data in the movement track, and after the measurement is finished, the average wind speed on the section of the roadway is calculated or read according to the relevant wind quantity data in the wind meter.
3. The method for measuring the air volume of the accurate measuring device for the air volume of the large-section roadway according to claim 2, wherein the step S1 specifically comprises the following steps:
s101, expanding a groove rail unit of a bidirectional groove rail;
s102, fixing the grooved rail unit on the inner wall of a roadway by using a hanging ring;
S103, connecting an upper connecting piece to a roadway top plate, and then connecting a lower connecting piece to a lowest grooved rail unit of the bidirectional grooved rail;
preferably, the movement track of the wind meter in the step S3 covers an S-shaped area of the whole roadway section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811534391.XA CN109506720B (en) | 2018-12-14 | 2018-12-14 | Device and method for accurately measuring air quantity of large-section roadway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113605978A (en) * | 2021-08-23 | 2021-11-05 | 中煤科工集团重庆研究院有限公司 | Return airway gas emission monitoring method |
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| CN107328549A (en) * | 2017-06-26 | 2017-11-07 | 西南交通大学 | A kind of quick measure wind field is across the test aircraft device to correlation |
| CN209102152U (en) * | 2018-12-14 | 2019-07-12 | 李�杰 | A kind of large section roadway air quantity device for accurately measuring |
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