CN209727981U - Air flow system is surveyed in mine air duct - Google Patents
Air flow system is surveyed in mine air duct Download PDFInfo
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- CN209727981U CN209727981U CN201920220894.3U CN201920220894U CN209727981U CN 209727981 U CN209727981 U CN 209727981U CN 201920220894 U CN201920220894 U CN 201920220894U CN 209727981 U CN209727981 U CN 209727981U
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- mounting rack
- latticed
- air duct
- metallic rod
- pitot tube
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Abstract
The utility model relates to a kind of mine air ducts to survey air flow system, belong to monitoring equipment for mine.The technical solution adopted in the utility model is: including the latticed mounting rack being made of metallic rod, latticed mounting rack one week is encircled a city frame by metallic rod, centre sets more metallic rod connections, latticed mounting rack is mounted on the section of air duct identical with its section, latticed mounting rack presses more parts of area equal part, and Pitot tube is set in the latticed mounting rack position of centre of gravity of every part of homalographic, Pitot tube is divided into equal number of three groups, the forward voltage diode of every group of Pitot tube is connected after coming together in a pipeline connection with the positive pressure mouth of digital pressure gauge, the negative tube of every group of Pitot tube is connected after coming together in a pipeline connection with the negative pressure mouth of digital pressure gauge.The utility model is to arrange Pitot tube by the way that drift section is divided into several homalographics in the position of centre of gravity of each homalographic, after Pitot tube is connect with micro computer digital pressure gauge, measure the ram compression in air duct, the wind speed in the tunnel is calculated by ram compression.
Description
Technical field
The present invention relates to a kind of mine air ducts to survey air flow system, belongs to monitoring equipment for mine.
Background technique
Underground mine underworkings must survey wind, and wind is mainly surveyed using artificial in mine at present, and part mine is installed in underground
Air velocity transducer, but manually survey wind repeated work and take time and effort, air velocity transducer surveys wind since sensor mounting location is bad
It determines, causes test error bigger than normal.
Summary of the invention
The present invention provides a kind of mine air duct survey air flow system, solves the problems, such as that wind speed is surveyed in long-range mine air duct.
To achieve the above object, the technical solution adopted by the present invention is that:
Air flow system is surveyed in mine air duct, including the latticed mounting rack being made of metallic rod, latticed mounting rack one week by
Metallic rod besieged city frame, centre set more metallic rods connections, and latticed mounting rack is mounted on air duct identical with its section section
On, latticed mounting rack is by more parts of area equal part, the multiple that number is 3, and in the latticed mounting rack center of gravity of every part of homalographic
Pitot tube is arranged in position, and Pitot tube is divided into equal number of three groups, after the forward voltage diode of every group of Pitot tube comes together in a pipeline connection
Be connected with the positive pressure mouth of digital pressure gauge, the negative tube of every group of Pitot tube come together in after a pipeline connection with digital pressure gauge
Negative pressure mouth is connected.
Preferably, the latticed mounting rack shape is the Semicircular arched or rectangle for matching air duct section configuration.
Preferably, the edge of the latticed mounting rack is equipped with fixed plate forward or backward, fixed plate with it is latticed
It is vertical between mounting rack, fixation hole is opened in fixed plate, installation swell fixture is fixed on the inner wall of air duct in fixation hole.
Preferably, the metallic rod of the latticed mounting rack is 16mm spiral.
Further preferred, the latticed mounting rack shape is Semicircular arched, the square of semicircle and lower part including top
Shape, the semicircle on top are equipped with three groups of metallic rods and are arranged in radius, in three metallic rods one it is vertical, in addition two metallic rods with
30 degree of the horizontal line angle two sides for being arranged in vertical metallic rod, the semicircle on top are divided into concentric three annulus of homalographic, and concentric three
Annulus is divided into nine parts by three root radius lines again, and the annulus position of centre of gravity of above-mentioned nine parts of homalographics is arranged in nine Pitot tubes, i.e., often
Root metallic rod sets three Pitot tubes；Horizontal metal bar is equipped among the rectangle of lower part, six Pitot tubes are equidistantly uniformly arranged at this
In horizontal metallic rod, above-mentioned six Pitot tubes are long for horizontal metal bar apart from lower rectangular edge in the Pitot tube of marginal position
Ten halfs of degree.
Further preferably the latticed mounting rack shape is rectangle, and centre sets metallic rod, and metallic rod is using laterally three
Root, it is vertical three or laterally it is vertical respectively three be crossed as one of latticed mode and arrange, nine groups of Pitot tubes are arranged upper
State on metal tube and be located at the position of centre of gravity of nine equal part area of place.
The present invention is to arrange skin support in the position of centre of gravity of each homalographic by the way that drift section is divided into several homalographics
Pipe after connecting Pitot tube with micro computer digital pressure gauge, measures the ram compression in air duct, the wind in the tunnel is calculated by ram compression
Speed.The present apparatus is set up directly in air duct, can remotely measure, potential error component caused by avoiding people from surveying.It has saved artificial
In turn ensure the accuracy of data.
Detailed description of the invention
Fig. 1 is that latticed mounting rack of the invention is the location drawing that Semicircular arched installs Pitot tube,
Fig. 2 is that latticed mounting rack of the invention is the location drawing that rectangle installs Pitot tube,
Fig. 3 is the installation diagram of latticed mounting rack of the invention in tunnel.
Appended drawing reference:
15 digital pressure gauge of latticed 2 metallic rod of mounting rack 3 Pitot tube, 4 pipeline, 6 fixed plate.
Specific embodiment
Specific structure of the invention is further detailed below: air flow system structure packet is surveyed in mine air duct of the present invention
Include the latticed mounting rack being made of metallic rod, latticed mounting rack one week is encircled a city frame by metallic rod, and centre sets more metals
Bar connection, latticed mounting rack are mounted on the section of air duct identical with its section, and the latticed mounting rack shape of the present apparatus is
Semicircular arched or rectangle with air duct section configuration.The metallic rod of latticed mounting rack is 16mm spiral.
Latticed mounting rack presses more parts of area equal part, and the multiple that number is 3, multiple Pitot tubes are arranged in latticed mounting rack
The position of centre of gravity of the above-mentioned area divided equally, Pitot tube are divided into equal number of three groups, and the forward voltage diode of every group of Pitot tube comes together in one
Be connected after pipeline connection with the positive pressure mouth of digital pressure gauge, the negative tube of every group of Pitot tube come together in after a pipeline connection with number
The negative pressure mouth of word pressure gauge is connected.
The edge of the latticed latticed mounting rack of installation is equipped with fixed plate forward or backward, fixed plate and latticed installation
It is vertical between frame, fixation hole is opened in fixed plate, installation swell fixture is fixed on the inner wall of air duct in fixation hole, as shown in Figure 3.
Embodiment 1
Latticed mounting rack shape is Semicircular arched, as shown in Figure 1, including the semicircle on top and the rectangle of lower part, top
Semicircle be equipped with three groups of metallic rods and be arranged in radius, vertical, in addition two metallic rods and a horizontal line in three metallic rods
30 degree of the angle two sides for being arranged in vertical metallic rod, the semicircle on top are divided into concentric three annulus of homalographic, and concentric three annulus is again
It is divided into nine parts by three root radius lines, the annulus position of centre of gravity of above-mentioned nine parts of homalographics, i.e. every metal is arranged in nine Pitot tubes
Bar sets three Pitot tubes；Horizontal metal bar is equipped among the rectangle of lower part, six Pitot tubes are equidistantly uniformly arranged in the level
In metallic rod, above-mentioned six Pitot tubes are the ten of horizontal metal pole length apart from lower rectangular edge in the Pitot tube of marginal position
Half.
The following table 1 is distributing position of the Pitot tube on latticed mounting rack, RN(N=1-9 in table) indicate measuring point opposite semicircle
The distance in the center of circle, 30 ° and 90 ° of ∠ of the ∠ angles for opposite semicircle bottom sides, A indicate the length of bottom rectangle, and B indicates bottom rectangle
Height.
Table 1 is distributing position of the Pitot tube on latticed mounting rack
The positive pressure mouth and negative pressure mouth of A1- A5 is connected to the first digital pressure gauge after collecting respectively, the positive pressure mouth of B1- B5 and
Negative pressure mouth is connected to the second digital pressure gauge after collecting respectively, the positive pressure mouth and negative pressure mouth of C1- C5 is connected to after collecting respectively
Three digital pressure gauge
Embodiment 2
Latticed mounting rack shape is rectangle, as shown in Fig. 2, centre sets metallic rod, metallic rod is using laterally three, or erects
Xiang Sangen, or laterally it is vertical respectively three be crossed as one of latticed mode and arrange, nine groups of Pitot tubes are arranged in above-mentioned gold
Belong to pipe above and is located at the position of centre of gravity of nine equal part area of place.
Specially laterally three metallic rods when, three metallic rods are equally spaced, and apart from top and bottom frame edge away from
From 1/6th for height, three Pitot tubes are arranged at the trisection posistion of a metallic rod, three Pitot tube positive pressures
Interface is connected to number after collecting.
Table 2 is distributing position of the Pitot tube on latticed mounting rack
The positive pressure mouth and negative pressure mouth of A1- A3 is connected to the first digital pressure gauge after collecting respectively, the positive pressure mouth of A4- A6 and
Negative pressure mouth is connected to the second digital pressure gauge after collecting respectively, the positive pressure mouth and negative pressure mouth of A7- A9 is connected to after collecting respectively
Three digital pressure gauge
The method for carrying out surveying wind using above-mentioned two embodiment.
When surveying wind, the upper registration of micro- digital pressure gauge, the i.e. dynamic pressure of measuring point are first read, wind is then calculated according to following equation
Speed:
In formula:
--- survey wind section measuring point wind speed, m/s；
--- atmospheric density, kg/m3 take 1.2kg/m3；
--- the dynamic pressure that measuring point measures, Pa.
Pitot tube new model used in the present apparatus is AFP-6B, and the digital pressure machine model SYT-2000V used is micro-
Computer numeral pressure gauge.
Claims (6)
1. air flow system is surveyed in a kind of mine air duct, characterized in that including the latticed mounting rack (1) being made of metallic rod, grid
Shape mounting rack (1) one week is encircled a city frame by metallic rod, and centre sets more metallic rods connections, latticed mounting rack (1) be mounted on
On the identical air duct section in its section, latticed mounting rack (1) is by more parts of area equal part, the multiple that number is 3, and at every part etc.
Pitot tube (3) are arranged in latticed mounting rack (1) position of centre of gravity of area, and Pitot tube (3) is divided into equal number of three groups, every group of skin support
The forward voltage diode of pipe (3) is connected after coming together in pipeline (4) connection with the positive pressure mouth of digital pressure gauge (5), every group of Pitot tube (3)
Negative tube come together in pipeline (4) connection after be connected with the negative pressure mouth of digital pressure gauge (5).
2. air flow system is surveyed in mine air duct according to claim 1, characterized in that latticed mounting rack (1) shape
For the Semicircular arched or rectangle for matching air duct section configuration.
3. air flow system is surveyed in mine air duct according to claim 1, characterized in that the side of the latticed mounting rack (1)
Edge is equipped with fixed plate (6) forward or backward, vertical between fixed plate (6) and latticed mounting rack (1), opens in fixed plate (6) solid
Determine hole, installation swell fixture is fixed on the inner wall of air duct in fixation hole.
4. air flow system is surveyed in mine air duct according to claim 1, characterized in that the gold of the latticed mounting rack (1)
Category bar is 16mm spiral.
5. air flow system is surveyed in mine air duct according to claim 2, characterized in that latticed mounting rack (1) shape
For Semicircular arched, the rectangle of semicircle and lower part including top, the semicircle on top is equipped with three groups of metallic rods and is arranged in radius,
In three metallic rods one it is vertical, in addition the two sides of vertical metallic rod, top are arranged in 30 degree of horizontal line angle for two metallic rods
Semicircle be divided into concentric three annulus of homalographic, concentric three annulus is divided into nine parts by three root radius lines again, and nine Pitot tubes (3) set
The annulus position of centre of gravity in above-mentioned nine parts of homalographics is set, i.e. every metallic rod sets three Pitot tubes (3)；It is set among the rectangle of lower part
There is horizontal metal bar, six Pitot tubes (3) are equidistantly uniformly arranged in the metallic rod of the level, above-mentioned six Pitot tubes (3) In
The Pitot tube (3) of marginal position is ten halfs of horizontal metal pole length apart from lower rectangular edge.
6. air flow system is surveyed in mine air duct according to claim 2, characterized in that latticed mounting rack (1) shape
For rectangle, centre sets metallic rod, metallic rod using laterally three, it is vertical three or laterally it is vertical respectively three be crossed as it is latticed
One of mode arrange that nine groups of Pitot tubes (3) are arranged in above-mentioned metallic rod and are located at the center of gravity position of nine equal part area of place
It sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220894.3U CN209727981U (en) | 2019-02-21 | 2019-02-21 | Air flow system is surveyed in mine air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920220894.3U CN209727981U (en) | 2019-02-21 | 2019-02-21 | Air flow system is surveyed in mine air duct |
Publications (1)
| Publication Number | Publication Date |
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| CN209727981U true CN209727981U (en) | 2019-12-03 |
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ID=68683514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201920220894.3U Active CN209727981U (en) | 2019-02-21 | 2019-02-21 | Air flow system is surveyed in mine air duct |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782017A (en) * | 2019-02-21 | 2019-05-21 | 山东公信安全科技有限公司 | Air flow system is surveyed in mine air duct |
| CN111679094A (en) * | 2020-06-19 | 2020-09-18 | 湖南有色冶金劳动保护研究院 | Wind speed detection equipment for roadway |
-
2019
- 2019-02-21 CN CN201920220894.3U patent/CN209727981U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109782017A (en) * | 2019-02-21 | 2019-05-21 | 山东公信安全科技有限公司 | Air flow system is surveyed in mine air duct |
| CN109782017B (en) * | 2019-02-21 | 2024-03-29 | 中检集团公信安全科技有限公司 | Wind speed measuring device for mine air duct |
| CN111679094A (en) * | 2020-06-19 | 2020-09-18 | 湖南有色冶金劳动保护研究院 | Wind speed detection equipment for roadway |
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