A downhole wind direction measuring instrument with fluorescent powder

Abstract

The utility model provides a kind of underground wind direction measuring instrument with fluorescent powder, including wind measuring pole and fluorescent powder storage tank;The fluorescent powder storage tank is movably connected to the wind measuring pole by hinged connector, the hinged connector makes the storage tank rotate freely around connecting point and can be stably positioned at any angle, the storage tank is equipped with powder release mechanism, for controlling the release rate of fluorescent powder.The utility model combines fluorescent powder with controllable pouring structure, directly displays low wind speed airflow direction through fluorescent trajectory in dark tunnel;Solve the industry problem that airflow direction cannot be identified under ultra-low wind speed;Fluorescent powder actively emits light in dark environment, form high-contrast visible trajectory, overcome the defect that traditional lightweight object is invisible under low wind speed and easy to stick;At the same time, fluorescent powder adds anti-caking agent, ensure the powder fluidity in high-humidity environment underground, avoid tracer failure due to caking.

Description

Technical Field

[0001] This utility model belongs to the field of underground mining operation technology, specifically an underground wind direction measuring instrument with fluorescent powder. Background Technology

[0002] In the field of underground ventilation safety in mines, airflow direction identification is a core technical aspect of ensuring safe production. Ventilation system failure is classified as a major accident hazard, but the determination of airflow direction in low-velocity roadways with wind speeds less than 0.5 m / s has long been a technological gap.

[0003] Traditional wind flow identification relies on two methods: when the wind speed is >0.5m / s, people can sense the direction of the airflow through their skin; or they can use materials such as feathers or smoke bombs to trace the airflow through their drifting trajectory.

[0004] The aforementioned technologies are practically applicable in high-wind-speed scenarios, but when the wind speed is <0.5m / s, the sensitivity of human perception drops sharply, and lightweight tracers cannot form effective movement trajectories due to insufficient kinetic energy. Simultaneously, the high humidity environment underground causes tracers such as feathers to easily stick together and clump; traditional tracers are invisible in dark tunnels. Furthermore, existing methods require carrying separate tools, resulting in low operational efficiency and safety hazards in narrow tunnels.

[0005] In mining operations involving multiple sections and multiple mining areas simultaneously, wind speeds in areas such as connecting roadways and blind shafts are often below 0.5 m / s. Existing technologies have the following drawbacks in such scenarios: the lack of actively luminescent tracers in dark environments prevents the formation of high-contrast visible tracks; high humidity causes powder agglomeration, leading to uncontrollable release of tracer materials; and the need for repeated tool positioning and adjustments results in poor operability and prolonged accident investigation time. Utility Model Content

[0006] The main objective of this invention is to provide an underground wind direction measuring instrument with fluorescent powder that is suitable for use in low wind speed roadways and is easy to operate.

[0007] The downhole wind direction measuring instrument with fluorescent powder provided by this utility model includes a wind measuring rod and a fluorescent powder storage tank; the fluorescent powder storage tank is movably connected to the wind measuring rod through a hinged connector, the hinged connector allows the storage tank to rotate freely around the connection point and be stably positioned at any angle, and the storage tank is provided with a powder release mechanism to control the release rate of the fluorescent powder.

[0008] In one embodiment of the aforementioned measuring instrument, the wind measuring rod is a telescopic structure.

[0009] In one embodiment of the above-mentioned measuring instrument, a wind probe is provided at the top of the wind measuring rod.

[0010] In one embodiment of the aforementioned measuring instrument, a handle is provided at the bottom of the anemometer rod.

[0011] In one embodiment of the above measuring instrument, the fluorescent powder storage tank is made of an opaque material.

[0012] In one embodiment of the above measuring instrument, the phosphor includes a long-afterglow phosphor and an anti-caking agent.

[0013] In one embodiment of the above measuring instrument, the powder release mechanism includes a plurality of powder pouring holes disposed at the mouth of the storage tank and a bottle cap rotatably connected to the mouth of the tank, wherein the number of powder pouring holes opened is adjusted by rotating the bottle cap.

[0014] In one embodiment of the above measuring instrument, the hinged connector adopts a spherical hinge mechanism, with its ball end fixed to a predetermined position on the wind measuring rod and its snap-fit ​​end connected to the side wall of the storage tank.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. By combining phosphor with a controllable pouring structure, the direction of airflow at low wind speeds can be directly displayed through fluorescent trajectories in dark tunnels; solving the industry problem of indistinguishable airflow direction at ultra-low wind speeds; the phosphor actively emits light in the dark environment, forming a high-contrast visible trajectory, overcoming the defects of traditional lightweight objects being invisible and prone to sticking at low wind speeds; at the same time, an anti-caking agent is added to the phosphor to ensure the fluidity of the powder in the high humidity environment underground, avoiding tracer failure due to clumping;

[0017] 2. The phosphor storage tank and the wind measuring rod are movably connected by a hinged connector, which allows the storage tank to rotate freely and be quickly positioned with the tank opening facing down. When the wind measuring rod is extended, the storage tank can be rotated to the working position with one hand without secondary positioning. The modular design avoids carrying additional independent tools and improves the efficiency of working in narrow underground spaces. The opaque tank protects the energy storage characteristics of the phosphor and ensures the stability of luminescence.

[0018] 3. The bottle cap is equipped with a rotatable and adjustable powder pouring hole. The number of openings can be controlled by rotating the cap, and the release rate of fluorescent powder can be precisely adjusted. It can adapt to the dust consumption requirements of different roadway heights. Each opening releases a small amount of powder, avoiding excessive dust pollution of the environment or obstruction of vision. The screw cap operation can be performed even when wearing gloves, improving the convenience and reliability of operation in harsh underground working conditions. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of one embodiment of the present utility model.

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of a medium-sized fluorescent powder storage tank.

[0021] Figure 3 for Figure 2 A diagram illustrating the use of the storage tank cap from opening to closing. Detailed Implementation

[0022] The relevant technical solutions will now be clearly and completely described with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments, and not all of the embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0023] like Figure 1 As shown, the downhole wind direction measuring instrument with fluorescent powder disclosed in this embodiment includes a wind measuring rod 1 and a fluorescent powder storage tank 2.

[0024] The wind measuring rod 1 is a telescopic, slender rod used to support and position the device in the downhole environment. The top of the wind measuring rod is equipped with a wind measuring probe 6, which has a wind speed measurement function; the bottom of the wind measuring rod is a handle 7, which is convenient for the user to grip and stabilize.

[0025] like Figure 2 As shown, the fluorescent powder storage tank 2 is movably connected to the upper part of the wind measuring rod 1 via a hinged connector 5. The storage tank 2 is used to store and release fluorescent powder. The tank has a diameter of about 6 cm and a height of about 15 cm. It is made of opaque material to prevent external light from affecting the energy storage characteristics of the fluorescent powder.

[0026] The phosphor is selected from the calcium aluminate system with long afterglow phosphor, and an anti-caking agent is added to ensure that the powder maintains its fluidity in a high-humidity downhole environment.

[0027] like Figure 3 As shown, the tank 2 has a closed opening, and multiple circular powder discharge holes 3 are evenly distributed on one side of the opening. The cap 4 is a circular cap with a notch on one side, which is concentrically and rotatably connected to the opening of the tank. By rotating the cap, the number of powder discharge holes that open can be adjusted, thereby precisely controlling the release rate of the phosphor.

[0028] When the opening of storage tank 2 is facing downwards, the fluorescent powder is discharged through the powder pouring hole 4 under the action of gravity, forming a free-falling powder stream.

[0029] The hinged connector 5 adopts a spherical hinge mechanism. Its ball end is fixed to the predetermined position of the wind measuring rod 1, and the snap-on end is connected to the side wall of the tank body of the storage tank 2, so that the storage tank 2 can rotate freely 360 degrees around the connection point and can be stably positioned at any angle.

[0030] The purpose of this measuring instrument is to directly display the airflow direction in a low-wind-speed downhole environment.

[0031] Specifically, the calcium aluminate system's long-afterglow phosphor pre-absorbs and stores light energy, releasing high-contrast fluorescence in the dark to form a visible trajectory; an anti-caking agent ensures smooth powder pouring, preventing clumping and failure. Through the hinged connector 5, the operator can rotate the storage tank 2 to the downward-facing working position with one hand, and combined with the screw-on adjustment of the cap 3, precisely control the powder release amount. The trace amounts of powder disperse in the airflow, and their fluorescent trajectory directly indicates the airflow direction, solving the problem of airflow direction identification at ultra-low wind speeds.

[0032] The operating instructions for this measuring instrument are as follows:

[0033] 1. Phosphor Pretreatment and Loading: In a well-lit environment, the phosphor with added anti-caking agent is fully exposed to the light source for energy storage. This ensures that the phosphor absorbs enough light energy to achieve optimal luminescence performance. The stored phosphor is then loaded into a phosphor powder storage tank. The tank cap is then rotated to completely cover the powder pouring hole on the surface of the tank opening, thus ensuring a fully closed state and preventing phosphor leakage.

[0034] 2. Downhole work site positioning and equipment preparation: Carry the measuring instrument to the specific location downhole where airflow direction identification is required; the operator holds the handle at the bottom of the measuring rod, extends the measuring rod to a suitable length according to the needs of the site space, supports the device and positions it in the target area.

[0035] 3. Tank working position orientation: Rotate the tank to the working position where the tank opening is completely facing downwards. The hinged connector ensures that the tank is stably positioned in this location.

[0036] 4. Adjustment of Phosphor Release Rate: Rotate the cap of the storage tank. The rotation gradually adjusts the number of powder discharge orifices opening. Adjust the number of orifices to the required level based on factors such as the height of the tunnel, the expected observation distance, and the ambient humidity. This step aims to control the phosphor release rate, ensuring a small, clear, and continuous powder flow, and avoiding excessive release that could cause dust pollution or visual interference. The screw cap design facilitates operation while wearing gloves.

[0037] 5. Phosphor Release and Airflow Direction Tracing: With the tank opening facing downwards and the powder discharge orifice open, the phosphor is freely released through the open orifice under gravity, forming a downward-flowing powder stream. The underground environment is typically dark or under low-light conditions. Due to its long afterglow characteristic, the released phosphor actively releases high-brightness fluorescence in the dark. Low-speed airflow acts on the dispersed phosphor particles, causing them to move along the airflow direction. Against the dark background, this forms a clear, high-contrast fluorescent trail.

[0038] 6. Airflow Direction Interpretation: The operator directly observes the direction of the fluorescence trail formed by the phosphor. The direction of the extension of this fluorescence trail directly and accurately indicates the downhole airflow direction at that measuring point.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A downhole wind direction measuring instrument with fluorescent powder, characterized in that: It includes a wind measuring rod and a fluorescent powder storage tank; The fluorescent powder storage tank is movably connected to the anemometer rod via a hinged connector. The hinged connector allows the storage tank to rotate freely around the connection point and be stably positioned at any angle. The storage tank is equipped with a powder release mechanism to control the release rate of the fluorescent powder.

2. The downhole wind direction measuring instrument with fluorescent powder as described in claim 1, characterized in that: The wind measuring rod is a telescopic structure.

3. The downhole wind direction measuring instrument with fluorescent powder as described in claim 1, characterized in that: The top of the anemometer rod is equipped with an anemometer probe.

4. The downhole wind direction measuring instrument with fluorescent powder as described in claim 1, characterized in that: The bottom of the anemometer rod is equipped with a handle.

5. The downhole wind direction measuring instrument with fluorescent powder as described in claim 1, characterized in that: The fluorescent powder storage tank is made of opaque material.

6. The downhole wind direction measuring instrument with fluorescent powder as described in claim 1, characterized in that: The phosphor includes a long-afterglow phosphor and an anti-caking agent.

7. The downhole wind direction measuring instrument with fluorescent powder as described in claim 1, characterized in that: The powder release mechanism includes a plurality of powder pouring holes disposed at the mouth of the storage tank and a cap rotatably connected to the mouth of the tank. The number of powder pouring holes opened can be adjusted by rotating the cap.

8. The downhole wind direction measuring instrument with fluorescent powder as described in claim 1, characterized in that: The hinged connector adopts a spherical hinge mechanism, with its ball end fixed to a predetermined position on the wind measuring rod and its snap-fit ​​end connected to the side wall of the storage tank.

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