CN211374804U - Wind speed monitoring system - Google Patents
Wind speed monitoring system Download PDFInfo
- Publication number
- CN211374804U CN211374804U CN201922261689.4U CN201922261689U CN211374804U CN 211374804 U CN211374804 U CN 211374804U CN 201922261689 U CN201922261689 U CN 201922261689U CN 211374804 U CN211374804 U CN 211374804U
- Authority
- CN
- China
- Prior art keywords
- wind speed
- transceiver
- mine
- monitoring system
- location
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 58
- 238000005259 measurement Methods 0.000 claims abstract description 24
- 238000007664 blowing Methods 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 6
- 239000000523 sample Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004171 remote diagnosis Methods 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
Images
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The wind speed monitoring system suitable for monitoring the wind speed in the mine passage comprises a plurality of groups of wind speed measuring devices. Each group of wind speed measuring devices comprises: a first transceiver mounted at a first location of the mine passage; a second transceiver mounted at a second location of the mine passage, the second location being downstream of the first location in a blowing direction of wind within the mine passage; and an anemometer connected to the first transceiver and the second transceiver and configured to determine a wind speed between the first location and the second location based on an upwind response time of the first transceiver to receive the ultrasonic signal transmitted by the second transceiver and a downwind response time of the second transceiver to receive the ultrasonic signal transmitted by the first transceiver. The wind speed monitoring system for the wind speed can measure the wind speed in the mine channel by utilizing an ultrasonic wind measurement technology in a larger distance range, and improves the accuracy and the real-time performance of the wind speed measurement of the mine channel.
Description
Technical Field
The utility model relates to a wind speed monitoring system especially relates to a wind speed monitoring system suitable for control colliery is wind speed in the mine passageway in the pit.
Background
Comprehensive, timely and accurate wind speed data is the basis for solving a series of ventilation problems in mine channels (such as coal mine channels). The existing wind speed acquisition modes mainly comprise two modes: monitoring wind speed measuring point data and manual measuring data in the monitoring system. Both of these measurements are essentially "point wind speed" measurements. Conventional anemometry probes are installed 20cm below the roof of the roadway and it is apparent that the average wind speed for the entire roadway is inaccurate by measuring the "point wind speed" there. The manual wind measurement has low efficiency and large error, the problems are not found and solved in time, and the mine safety production is not facilitated and the working efficiency is improved.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to solve at least one of the above problems and drawbacks existing in the prior art.
The utility model provides a wind speed monitoring system can measure the wind speed in the mine passageway at great distance within range.
According to the utility model discloses an aspect provides a wind speed monitoring system suitable for monitor wind speed in the mine passageway, including multiunit wind speed measuring device. Each group of wind speed measuring devices comprises: a first transceiver mounted at a first location of the mine passage; a second transceiver mounted at a second location of the mine passage, the second location being downstream of the first location in a blowing direction of wind within the mine passage; and an anemometer connected to the first transceiver and the second transceiver and configured to determine a wind speed between the first location and the second location based on an upwind response time of the first transceiver to receive the ultrasonic signal transmitted by the second transceiver and a downwind response time of the second transceiver to receive the ultrasonic signal transmitted by the first transceiver.
According to another embodiment of the present invention, the first and second transceivers are mounted on opposite first and second side walls of the mine passage, respectively.
According to another embodiment of the present invention, each of the first transceiver and the second transceiver is located at a distance of not less than 300 millimeters from the bottom of the mine passage.
According to another embodiment of the invention, the line between the first position and the second position forms an angle with the direction of extension of the mine passage in the range of 30-60 degrees.
According to another embodiment of the invention, the line between the first position and the second position has an angle of about 45 degrees with the direction of extension of the mine passage.
According to the utility model discloses a further embodiment, every group wind speed measurement device still including be applicable to first transceiver, second transceiver and anemograph provide the explosion-proof power supply of electric energy.
According to the utility model discloses a wind speed monitoring system still includes the monitoring host computer, configures to accept the wind speed that every group wind speed measurement device measured.
According to the utility model discloses a wind speed measuring device of every group is still including installing respectively the forced draught blower of first position upper reaches, the monitoring host computer according to the corresponding forced draught blower of wind speed control that every wind speed measuring device of group's anemograph to air output in the mine passageway.
According to the utility model discloses a another kind of embodiment, every wind speed measurement device of group is still including installing gas sensor between primary importance and the second place, the monitoring host computer according to the corresponding forced draught blower of content control of gas and/or carbon monoxide that gas sensor measured to air supply volume in the mine passageway.
According to the utility model discloses a further embodiment, every group wind speed measurement device still including be applicable to with the communication interface of monitoring host communication.
In according to the utility model discloses a preceding each exemplary embodiment, according to the upwind speed response time that the ultrasonic wave signal that the second transceiver was transmitted was accepted to first transceiver, and the downwind speed response time that the ultrasonic wave signal that the first transceiver was transmitted was accepted to the second transceiver confirms the wind speed between first position and the second position, can utilize the wind speed in the ultrasonic anemometry technique measurement mine passageway in great distance range, improved mine passageway wind speed measurement's accuracy and real-time.
Other objects and advantages of the present invention will become apparent from the following description of the invention, which is made with reference to the accompanying drawings, and can help to provide a thorough understanding of the present invention.
Drawings
FIG. 1 shows a block diagram of a wind speed monitoring system according to an exemplary embodiment of the present invention;
FIG. 2 is a schematic diagram showing a group of wind speed measuring devices of the wind speed monitoring system shown in FIG. 1 measuring wind speed in a section of a mine passageway;
FIG. 3 shows a cross-sectional view of FIG. 2;
FIG. 4 shows a schematic view of the installation of a transceiver in a wall of a mine passageway; and
fig. 5 shows a schematic diagram of wind speed measurement in a section of a mine shaft passageway using two successive sets of wind speed measuring devices according to another exemplary embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote the same or similar components. The following description of the embodiments of the present invention with reference to the drawings is intended to explain the general inventive concept and should not be construed as limiting the invention.
Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in schematic form in order to simplify the drawing.
According to the utility model discloses a general technical concept provides a wind speed monitoring system suitable for monitor wind speed in the mine passageway, including multiunit wind speed measuring device. Each group of wind speed measuring devices comprises: a first transceiver mounted at a first location of the mine passage; a second transceiver mounted at a second location of the mine passage, the second location being downstream of the first location in a blowing direction of wind within the mine passage; and an anemometer connected to the first transceiver and the second transceiver and configured to determine a wind speed between the first location and the second location based on an upwind response time of the first transceiver to receive the ultrasonic signal transmitted by the second transceiver and a downwind response time of the second transceiver to receive the ultrasonic signal transmitted by the first transceiver.
FIG. 1 shows a block diagram of a wind speed monitoring system according to an exemplary embodiment of the present invention; FIG. 2 is a schematic diagram showing a group of wind speed measuring devices of the wind speed monitoring system shown in FIG. 1 measuring wind speed in a section of a mine passageway; fig. 3 shows a schematic cross-sectional view of fig. 2.
As shown in fig. 1-3, according to an exemplary embodiment of the present invention, a wind speed monitoring system adapted to monitor wind speed within a mine shaft passageway 100 is provided, comprising a plurality of sets of wind speed measuring devices 10. Each set of wind speed measuring devices 10 is adapted to measure wind speed in a section of mine shaft passageway 100 and comprises: a first transceiver 1 mounted at a first location in the mine passage 100; a second transceiver 2 mounted at a second location of the mine passage 100; and an anemometer 3 connected to the first transceiver 1 and the second transceiver 2. The second position is located downstream of the first position in the blowing direction of the wind within the mine passage 100 (the direction of extension of the mine passage), i.e. the wind flows from the first position to the second position. As shown in fig. 2, if the distance between the first position and the second position is L, and the angle between the line between the first position and the second position and the blowing direction of the wind is α, the distance in the blowing direction of the wind between the first position and the second position is L (cos α). Further, the anemometer 3 is configured to determine the wind speed between the first and second positions from the upwind response time of said first transceiver 1 to receive the ultrasonic signal transmitted by the second transceiver 2 and the downwind response time of said second transceiver 2 to receive the ultrasonic signal transmitted by the first transceiver 1.
According to the utility model discloses a wind speed measuring device adopts time difference ultrasonic velocity measurement principle, and the ultrasonic wave exists the time difference when following current, adverse current propagation same distance in the fluid such as air, and the difference of propagation time has the relation with the flow velocity of the fluid that is surveyed, measures the difference of propagation time from this and obtains fluidic velocity of flow. Each group of wind speed measuring devices 10 respectively transmit ultrasonic signals to each other and receive the ultrasonic signals from each other through the first transceiver 1 and the second transceiver 2 which are used as ultrasonic probes, and the anemoscope 3 collects the received ultrasonic signals representing the wind speed and obtains the specific wind speed through analysis, processing and calculation.
Utilize the utility model discloses a formula that wind speed measuring device 10 calculated the wind speed is as follows:
where V is the measured wind speed, L is the distance between the first and second positions where the first and second transceivers 1 and 2 are installed, i.e., the length of the ultrasonic propagation path, α is the angle between the ultrasonic signal propagation direction and the blowing direction of the wind, tabThe downwind speed response time of the second transceiver 2 for receiving the ultrasonic signal transmitted by the first transceiver 1; t is tbaThe upwind response time of the first transceiver 1 to receive the ultrasonic signal transmitted by the second transceiver 2 is provided.
According to the utility model discloses a wind speed monitoring system's wind speed measuring device 10 adopts the time difference ultrasonic velocity measurement principle, has changed traditional "with the monitoring mode of point instead of face", has realized accurate, true, the reliable measurement of data such as wind speed in the ventilation system of mine passageway to the real-time ventilation state of mine has objectively been reflected. For example, by selecting different measuring points, the accurate wind speed and wind volume of the tunneling head, the working face, the key roadway and the wind using place can be measured in real time, so that a mine passage accurate wind direction, wind speed and wind volume monitoring system is constructed.
According to an exemplary embodiment of the present invention, the first transceiver 1 and the second transceiver 2 are mounted on the opposing first side wall 20 and second side wall of the mine passage 100, respectively. Thus, the ultrasonic waves can traverse the cross-section of the mine passage 100 while passing through a section of the mine passage 100 in the direction of extension of the mine passage 100, thereby enabling the measured wind speed to more objectively reflect the real-time ventilation status of the mine.
According to an exemplary embodiment of the present invention, each of the first and second transceivers 1, 2 is located at a distance H of no less than 300 millimeters from the bottom 30 of the mine passageway 100. For example, the first transceiver 1 and the second transceiver 2 have the same mounting height.
According to an exemplary embodiment of the invention, the connection between the first position (first transceiver 1) and the second position (second transceiver 2) is at an angle in the range of 30-60 degrees to the direction of extension of the mine passage 100. For example, a line drawn between the first and second positions may be angled at about 45 degrees to the direction of extension of the mine passage 100.
Fig. 4 shows a schematic view of the installation of the transceiver in the wall of the mine passageway.
The manner of mounting the transceiver will be described below by taking as an example mounting the first transceiver 1, and as shown in fig. 4, a mounting groove 201 is formed at a first position of the first sidewall 20. The first transceiver 1 as an ultrasonic probe is mounted in the mounting groove 201 using the mounting bracket 31. The first transceiver 1 may be mounted on the mounting bracket 31 by a pivot 32 to adjust the transmission or reception angle of the first transceiver 1 so that the first transceiver 1 is aligned with the second transceiver 2. An electromagnetic shielding material 33 is disposed inside the mounting groove 201 to reduce electromagnetic interference of external electromagnetic radiation to the first transceiver 1. A transparent cover 34, for example, made of tempered glass, is installed at an opening of the mounting groove 201 to increase protection of the first transceiver 1 and prevent dust from entering into the mounting groove 201.
In an exemplary embodiment, the wind speed measurement device 10 may be an YFC15 type anemometer, which has data collection, temporary storage, display and transmission functions and includes an anemometer main body and two ultrasonic wind probes serving as a first transceiver and a second transceiver, respectively.
Fig. 5 shows a schematic diagram of wind speed measurement in a section of a mine shaft passageway using two successive sets of wind speed measuring devices according to another exemplary embodiment of the present invention.
In an exemplary embodiment, as shown in fig. 5, two sets of wind speed measuring devices are provided in series within the mine passageway 100. Two first transceivers 1 are mounted on one side wall (the lower side wall in the figure) of the mine passage and two adjacent second transceivers 2 are mounted on the other side wall (the upper side wall in the figure). In this way, the wind speed measurement path can be enlarged.
In an exemplary embodiment, as shown in fig. 1, each set of wind speed measuring devices further comprises an explosion-proof power supply 6 adapted to supply electrical energy to said first transceiver 1, second transceiver 2 and anemometer 3. The explosion-proof power supply 6 can use a mining explosion-proof and intrinsic safety uninterrupted power supply (for example, model KDW28-18) so as to facilitate subsequent maintenance. The explosion-proof power supply 6 can provide direct current of about 18 volts.
In an exemplary embodiment, as shown in fig. 1, the wind speed monitoring system further comprises a monitoring host 301, and the monitoring host 301 is configured to accept the wind speed measured by each group of wind speed measuring devices 10. The staff can call up the wind speed measured by each group of wind speed measuring devices 10 on the monitoring host 301 according to the requirement.
Generally, as shown in fig. 1, a control room 300 is provided above the ground 40, a monitoring host 301 is provided in the control room 300, and the monitoring host 301 is connected to a downhole ring network 400 provided below the ground 40 through a general communication interface 302 as a system front-end processor. The desktop system of the monitoring host 301 is composed of a C/S module and a network publishing module, wherein the C/S module has the functions of data acquisition, data processing, data analysis, user and system management and the like; the network version system comprises functions of data browsing, chart browsing, three-dimensional model and animation browsing and the like. The monitoring host 301 receives the wind speeds measured by the groups of wind speed measuring devices 10 in the mine passage 100. A printer 303 connected to the monitoring host 301, a monitoring system web server 304, and a scheduling room display screen 305 for displaying various data or a three-dimensional image of the on-site wind speed measuring device are also provided in the control room 300. A monitoring system backup system 306 is also provided in the control room 300 to prevent data loss due to system failure. A client host 307 is also provided in the control room 300 to remotely transmit measurement data through a network for remote diagnosis, analysis and control.
In an exemplary embodiment, as shown in fig. 1, each set of wind speed measuring devices 10 further includes a blower 7 installed upstream of the first position, respectively, and the monitoring host 301 controls the amount of air supplied into the mine passage 100 by the corresponding blower 7, for example, by adjusting the rotation speed of the blower 7 according to the wind speed measured by the anemometer 3 of each set of wind speed measuring devices 10, so that the wind speed at each measuring point can be controlled.
In an exemplary embodiment, as shown in fig. 1, each set of wind speed measuring devices 10 further includes a gas sensor 4 installed between the first and second positions, and the monitoring host 301 controls the amount of air supplied from the corresponding blower 7 into the mine passage 100 according to the content of gas (mainly containing methane gas) and/or carbon monoxide measured by the gas sensor 4. Thus, the safety of the mine passage operation can be further improved.
In an exemplary embodiment, as shown in FIG. 1, each set of wind speed measurement devices 10 further comprises a communication interface 5 adapted to communicate with the monitoring host. Each group of wind speed measuring devices 10 is connected with the downhole ring network 400 through the communication interface 5. The communication interface 5 is installed in the mine passage and may comprise, for example, an RS485 interface. In this way, the monitoring host 301 can communicate with each group of wind speed measuring devices 10 individually through the communication interface 5. The explosion-proof power supply 6 can supply power to the blower 7, the first transceiver 1, the second transceiver 2, the anemometer 3, and the gas sensor 4.
In order to ensure that each working place in the mine channel has enough air volume and ensure safe production, ensure that the actual air speed of each mine channel meets the requirement, and facilitate the detection of air leakage and the like, the arrangement principle of the surface group air speed measuring device is as follows: the total air intake and the total air return of the mine can be monitored in real time; the total amount of air inlet and air return of each mining area of the mine can be dynamically monitored; the wind condition of each stoping and tunneling working face can be dynamically monitored; the wind condition of the key part can be dynamically monitored. For example, in one embodiment, the wind measuring points 21+1 (1 maneuvering point) are initially set based on the principle of minimum measuring points, global management and control and minimum investment.
According to the utility model discloses a wind speed monitoring system can realize the record to mine fan data, tunnel windage and section data, ventilation structures data, amount of wind and wind speed actual measurement data, gas monitoring data, ground survey data, monitoring data, adopt worker's picture, design drawing etc. through the historical data who excavates ventilation system, finds out the ventilation law, guides reasonable ventilation. The wind speed monitoring system establishes a mine ventilation system database based on historical statistics and actual measurement data, and automatically analyzes attributes and ventilation system parameters of the mine ventilation system, ventilation efficiency of a mine, and stability, rationality and economy of the ventilation system.
It will be appreciated by those skilled in the art that the embodiments described above are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle.
Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify preferred embodiments of the present invention, and should not be construed as limiting the present invention.
Although a few embodiments of the present general inventive concept have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.
It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Additionally, any element numbers of the claims should not be construed as limiting the scope of the invention.
Claims (10)
1. The utility model provides a wind speed monitoring system suitable for monitor wind speed in the mine passageway, includes multiunit wind speed measuring device, its characterized in that, every group wind speed measuring device includes:
a first transceiver mounted at a first location of the mine passage;
a second transceiver mounted at a second location of the mine passage, the second location being downstream of the first location in a blowing direction of wind within the mine passage; and
an anemometer coupled to the first transceiver and the second transceiver and configured to determine a wind speed between the first location and the second location based on a upwind response time of the first transceiver to receive the ultrasonic signal transmitted by the second transceiver and a downwind response time of the second transceiver to receive the ultrasonic signal transmitted by the first transceiver.
2. The wind speed monitoring system of claim 1, wherein the first and second transceivers are mounted on first and second opposing sidewalls of the mine passageway, respectively.
3. The wind speed monitoring system of claim 2, wherein each of the first and second transceivers is no less than 300 millimeters from the bottom of the mine shaft passageway.
4. The wind speed monitoring system according to claim 1, wherein a line drawn between the first and second positions is at an angle in the range of 30-60 degrees to the direction of extension of the mine passageway.
5. The wind speed monitoring system of claim 4, wherein a line drawn between the first and second positions is angled at about 45 degrees to the direction of extension of the mine passageway.
6. The wind speed monitoring system according to claim 1, wherein each set of wind speed measurement devices further comprises an explosion-proof power supply adapted to provide electrical energy to the first transceiver, the second transceiver and the anemometer.
7. The wind speed monitoring system according to any one of claims 1-6, further comprising a monitoring host configured to accept wind speeds measured by each set of wind speed measuring devices.
8. The wind speed monitoring system according to claim 7, wherein each set of wind speed measuring devices further comprises a blower respectively mounted upstream of the first position, and the monitoring host controls the amount of air supplied by the respective blower into the mine passageway in accordance with the wind speed measured by the anemometer of each set of wind speed measuring devices.
9. The wind speed monitoring system according to claim 8, wherein each set of wind speed measuring devices further comprises a gas sensor installed between the first and second locations, and the monitoring host controls the amount of air supplied by the corresponding blower into the mine passageway according to the amount of gas and/or carbon monoxide measured by the gas sensor.
10. The wind speed monitoring system according to claim 7, wherein each set of wind speed measurement devices further comprises a communication interface adapted to communicate with the monitoring host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261689.4U CN211374804U (en) | 2019-12-16 | 2019-12-16 | Wind speed monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922261689.4U CN211374804U (en) | 2019-12-16 | 2019-12-16 | Wind speed monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211374804U true CN211374804U (en) | 2020-08-28 |
Family
ID=72154990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922261689.4U Active CN211374804U (en) | 2019-12-16 | 2019-12-16 | Wind speed monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211374804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377260A (en) * | 2020-10-22 | 2021-02-19 | 中国矿业大学 | Roadway full-section air quantity measuring system and method |
| CN114660324A (en) * | 2022-03-16 | 2022-06-24 | 国家能源集团宁夏煤业有限责任公司 | Coal mine wind measuring system, method and equipment based on Internet of things |
-
2019
- 2019-12-16 CN CN201922261689.4U patent/CN211374804U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377260A (en) * | 2020-10-22 | 2021-02-19 | 中国矿业大学 | Roadway full-section air quantity measuring system and method |
| CN112377260B (en) * | 2020-10-22 | 2021-07-02 | 中国矿业大学 | Roadway full-section air quantity measuring system and method |
| CN114660324A (en) * | 2022-03-16 | 2022-06-24 | 国家能源集团宁夏煤业有限责任公司 | Coal mine wind measuring system, method and equipment based on Internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211374804U (en) | Wind speed monitoring system | |
| CN112377260B (en) | Roadway full-section air quantity measuring system and method | |
| CN203298807U (en) | Roadway air volume measuring instrument | |
| CN109061219A (en) | Actual measurement device and method with reference to static pressure, wind speed and direction is provided under typhoon environment | |
| CN104005974B (en) | A kind of Coal Mine Ventilator flow-measuring method based on pressure correlation method | |
| CN104792372A (en) | Wind measuring method for complex flow field roadway | |
| CN209117086U (en) | One kind being used for mine ventilation pressure-measuring pipe | |
| CN204630622U (en) | A kind of critical speed flowmeters amount system | |
| CN201335843Y (en) | Double-throat-diameter venturi air-velocity measuring pipe | |
| CN203717034U (en) | Intelligent mine ventilation monitoring and adjusting device | |
| CN114526109A (en) | Mine ventilation parameter real-time monitoring system and monitoring method thereof | |
| CN217521187U (en) | Ultrasonic accurate wind measuring system | |
| CN208334405U (en) | Actual measurement device with reference to static pressure, wind speed and direction is provided under typhoon environment | |
| WO2022193342A1 (en) | High-precision mine tunnel air flow measurement method | |
| CN208537202U (en) | A kind of type aircraft ground air conditioner unit air outlet refrigeration performance test load case | |
| CN2473596Y (en) | Standard multiple probe blowing rate measuring sensor | |
| CN216285364U (en) | Mining crossing type ultrasonic real-time wind measuring device | |
| CN107654341A (en) | The vertical axis wind power generation monitoring device of survey is sentenced based on power observation and data exception | |
| CN220269160U (en) | Water pressure detection device for water supply pipeline | |
| CN221198601U (en) | Water level flow monitoring device applied to intelligent water service system | |
| CN111273055B (en) | Single-point measurement and control device and method for average wind speed of mine roadway | |
| CN216348870U (en) | High-precision flowmeter suitable for chimney flow monitoring | |
| CN116298380A (en) | Device and method for intelligently measuring air quantity of irregular roadway in high precision | |
| CN214011165U (en) | Big data-based device for predicting air quality trend | |
| CN215403069U (en) | Gas flowmeter for collecting second-stage closed-loop refueling return air quantity of gas station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210913 Address after: 201505 No. 5, Lane 9299, Tingwei Road, Tinglin Town, Jinshan District, Shanghai Patentee after: Shanghai Yuanyun Industrial Co.,Ltd. Address before: 200122 53J, unit 4, building 2, Shimao Binjiang garden, Lane 1, Weifang West Road, Pudong New Area, Shanghai Patentee before: Shao Qinrong Patentee before: Zhang Yiping |