Mine wind speed measuring system and working method thereof

Abstract

The present application belongs to the technical field of measurement, and particularly relates to a mine-used wind speed measurement system and a working method thereof, wherein the mine-used wind speed measurement system adjusts the temperature of a first thermocouple in a temperature measurement mechanism through a temperature adjusting mechanism controlled by a control module according to the ambient temperature, so as to improve the response speed of the temperature measurement mechanism when detecting the temperature, and further realize the adjustment of the temperature difference between the first thermocouple and a second thermocouple according to the ambient temperature, so as to improve the response speed of the temperature measurement mechanism when detecting the temperature and improve the detection accuracy of the wind speed.

Description

Technical Field

[0001] This invention belongs to the field of measurement technology, specifically relating to the measurement of fluid velocity, and more particularly to a mine wind speed measurement system and its working method. Background Technology

[0002] Wind speed monitoring is necessary in mines. Common technologies include: wind cup or propeller methods: these involve high-speed rotating parts, and bearing friction and collisions can generate mechanical sparks; dust accumulation can cause jamming, leading to a high failure rate; and their use is restricted and non-compliant in environments with methane or flammable / explosive gases. Hot-wire methods require electrical heating, posing risks of overheating, short circuits, and sparking; the high surface temperature can also ignite flammable gases, making their use strictly prohibited in high-risk explosion-proof areas. Ultrasonic methods have complex circuitry with drive and receiver circuits; although they have no mechanical parts, they still require complex explosion-proof certification, significantly increasing the overall cost. Thermal difference wind measurement relies on the response range of a temperature sensor, resulting in slow detection speeds that can affect the accuracy of the results.

[0003] Therefore, due to the slow speed of thermal temperature difference wind measurement, which affects the accuracy of the test results, a new mine wind speed measurement system and its working method need to be designed.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0005] This disclosure provides at least one mining wind speed measurement system and its working method.

[0006] In a first aspect, embodiments of this disclosure provide a mine wind speed measurement system, comprising:

[0007] A control module, and a temperature regulating mechanism electrically connected to the control module;

[0008] Temperature measuring mechanisms are provided on both the top and bottom surfaces of the temperature regulating mechanism;

[0009] The control module is configured to control the temperature adjustment mechanism to work according to the ambient temperature, so as to adjust the temperature of the first thermocouple in the temperature measuring mechanism, thereby improving the response speed of the temperature measuring mechanism when detecting temperature.

[0010] In one optional embodiment, the temperature measuring mechanism includes: a first mounting plate;

[0011] The first mounting plate of one temperature measuring mechanism is set on the top surface of the temperature regulating mechanism, and the first mounting plate of the other temperature measuring mechanism is set on the bottom surface of the temperature regulating mechanism.

[0012] The first mounting plate has several first thermocouples electrically connected to the control module on the side away from the temperature regulation mechanism.

[0013] In one alternative embodiment, the first mounting plate is connected to the second mounting plate via a serpentine connecting strip, thereby creating a gap between the first mounting plate and the second mounting plate;

[0014] A second thermocouple corresponding to the first thermocouple is provided on the side of the second mounting plate facing the first mounting plate. The second thermocouple is electrically connected to the first thermocouple and is also electrically connected to the control module.

[0015] In one alternative implementation, both the first thermocouple and the second thermocouple are hemispherical.

[0016] In one optional implementation, the control module is electrically connected to a communication module to establish communication with a host computer.

[0017] In one optional implementation, when wind blows into the gap between the first mounting plate and the second mounting plate, it causes a change in the temperature detected by several sets of first thermocouples and second thermocouples. The control module is configured to send the temperature detected by each set of first thermocouples and second thermocouples to a host computer via a communication module. The host computer is configured to obtain the wind speed based on the temperature changes detected by each set of first thermocouples and second thermocouples.

[0018] In one optional implementation, the host computer is configured to acquire the temperature changes of each group of first thermocouples and second thermocouples at the same time point based on the temperature changes detected by each group of first thermocouples and second thermocouples, mark the groups of first thermocouples and second thermocouples that show temperature changes at different time points, and acquire the wind direction based on the time point and the direction of the temperature change.

[0019] In one alternative implementation, the host computer is configured to acquire the tilt direction of the wind direction based on the temperature changes of the two temperature measuring devices.

[0020] Secondly, this disclosure also provides a method for operating the above-mentioned mine wind speed measurement system, including:

[0021] The control module controls the temperature adjustment mechanism to work according to the ambient temperature, so as to adjust the temperature of the first thermocouple in the temperature measuring mechanism, thereby improving the response speed of the temperature measuring mechanism when detecting temperature.

[0022] In one optional implementation, when wind blows into the gap between the first mounting plate and the second mounting plate, it causes a change in the temperature detected by several sets of first thermocouples and second thermocouples. The control module is configured to send the temperature detected by each set of first thermocouples and second thermocouples to a host computer via a communication module. The host computer is configured to obtain the wind speed based on the temperature changes detected by each set of first thermocouples and second thermocouples.

[0023] The beneficial effect of this invention is that the mine wind speed measurement system controls the operation of the temperature adjustment mechanism according to the ambient temperature through the control module, so as to adjust the temperature of the first thermocouple in the temperature measuring mechanism, thereby improving the response speed of the temperature measuring mechanism when detecting temperature. This achieves the adjustment of the temperature difference between the first thermocouple and the second thermocouple according to the ambient temperature, thereby improving the response speed of the temperature measuring mechanism when detecting temperature and improving the accuracy of wind speed detection.

[0024] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a mine wind speed measurement system provided in an embodiment of the present disclosure;

[0028] Figure 2 A schematic diagram of fitted wind direction provided for an embodiment of this disclosure;

[0029] Figure 3 This is a schematic diagram of a mine wind speed measurement system provided in an embodiment of the present disclosure.

[0030] In the picture:

[0031] Temperature regulation mechanism 1;

[0032] Temperature measuring mechanism 2, first mounting plate 21, first thermocouple 22, second mounting plate 23, second thermocouple 24, serpentine connecting strip 25, connecting column 26. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0035] Wind speed monitoring is necessary in mines. Common technologies include: wind cup or propeller methods: these involve high-speed rotating parts, and bearing friction and collisions can generate mechanical sparks; dust accumulation can cause jamming, leading to a high failure rate; and their use is restricted and non-compliant in environments with methane or flammable / explosive gases. Hot-wire methods require electrical heating, posing risks of overheating, short circuits, and sparking; the high surface temperature can also ignite flammable gases, making their use strictly prohibited in high-risk explosion-proof areas. Ultrasonic methods have complex circuitry with drive and receiver circuits; although they have no mechanical parts, they still require complex explosion-proof certification, significantly increasing the overall cost. Thermal difference wind measurement relies on the response range of a temperature sensor, resulting in slow detection speeds that can affect the accuracy of the results.

[0036] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] like Figure 1 and Figure 3As shown, at least one disclosed embodiment provides a mine wind speed measurement system, including: a control module and a temperature adjustment mechanism 1 electrically connected to the control module; temperature measuring mechanisms 2 are provided on both the top and bottom surfaces of the temperature adjustment mechanism 1; the control module is configured to control the operation of the temperature adjustment mechanism 1 according to the ambient temperature to adjust the temperature of the first thermocouple 22 in the temperature measuring mechanism 2, so as to improve the response speed of the temperature measuring mechanism 2 when detecting temperature, thereby realizing the adjustment of the temperature difference between the first thermocouple 22 and the second thermocouple 24 according to the ambient temperature, thereby improving the response speed of the temperature measuring mechanism 2 when detecting temperature and improving the accuracy of wind speed detection.

[0038] In this embodiment, the temperature regulating mechanism 1 can be composed of a combination of a semiconductor refrigeration device and a heating device, which can achieve both heating and cooling.

[0039] like Figure 1 As shown, in an optional embodiment, the temperature measuring mechanism 2 includes: a first mounting plate 21; the first mounting plate 21 of one temperature measuring mechanism 2 is disposed on the top surface of the temperature regulating mechanism 1, and the first mounting plate 21 of the other temperature measuring mechanism 2 is disposed on the bottom surface of the temperature regulating mechanism 1; a plurality of first thermocouples 22 electrically connected to the control module are disposed on the side of the first mounting plate 21 away from the temperature regulating mechanism 1.

[0040] In this embodiment, the first thermocouple 22 can be fixed by the mounting plate and heat can be transferred, causing the temperature of the first thermocouple 22 to change.

[0041] In this embodiment, the first thermocouple 22 can be heated in winter to make its temperature higher than the ambient temperature; in summer, the first thermocouple 22 can be cooled to make its temperature lower than the ambient temperature.

[0042] In this embodiment, by increasing the temperature difference between the first thermocouple 22 and the second thermocouple 24, the same set of first thermocouple 22 and second thermocouple 24 respond faster when detecting temperature.

[0043] In this embodiment, the top surface of the second mounting plate 23 of the temperature measuring mechanism 2 located at the top is provided with a connecting column 26, which can be connected to the top surface of the mine tunnel.

[0044] like Figure 1As shown, in an optional embodiment, the first mounting plate 21 is connected to the second mounting plate 23 via a serpentine connecting strip 25, so that a gap is formed between the first mounting plate 21 and the second mounting plate 23; a second thermocouple 24 corresponding to the first thermocouple 22 is provided on the side of the second mounting plate 23 facing the first mounting plate 21, the second thermocouple 24 is electrically connected to the first thermocouple 22, and the second thermocouple 24 is electrically connected to the control module.

[0045] In this embodiment, the length of the serpentine connecting strip 25 is kept as short as possible to reduce the obstruction of the wind by the serpentine connecting strip 25.

[0046] like Figure 1 As shown, in an optional embodiment, both the first thermocouple 22 and the second thermocouple 24 are hemispherical.

[0047] In this embodiment, the hemispherical shape can avoid obstructing the wind.

[0048] In one optional implementation, the control module is electrically connected to a communication module to establish communication with a host computer.

[0049] In one optional implementation, when wind blows into the gap between the first mounting plate 21 and the second mounting plate 23, it causes a change in the temperature detected by several sets of first thermocouples 22 and second thermocouples 24. The control module is configured to send the temperature detected by each set of first thermocouples 22 and second thermocouples 24 to a host computer via a communication module. The host computer is configured to obtain the wind speed based on the temperature changes detected by each set of first thermocouples 22 and second thermocouples 24.

[0050] In this embodiment, when a gust of wind blows through the interval, it triggers the thermocouples in each group to detect the temperature. Based on the principle of thermal difference-based anemometer measurement, the host computer determines that when wind blows, the fluid carries away heat. The heat loss upstream of the wind is always greater than the heat loss downstream, causing the temperature field to deviate from a symmetrical distribution. This results in a temperature difference between the upstream and downstream measurements, which is a function of wind speed. When the wind speed is low, the anemometer has high sensitivity, resulting in a large temperature difference. As the wind speed increases, the sensitivity gradually decreases until it reaches a saturation value at very high wind speeds. Therefore, the corresponding wind speed can be deduced simply by detecting the difference between the upstream and downstream values.

[0051] In one optional implementation, the host computer is configured to acquire the temperature changes of each group of first thermocouples 22 and second thermocouples 24 at the same time point based on the temperature changes detected by each group of first thermocouples 22 and second thermocouples 24, mark the groups of first thermocouples 22 and second thermocouples 24 that show temperature changes at different time points, and acquire the wind direction based on the time point and the direction of the temperature change.

[0052] In this embodiment, based on the time sequence of temperature detection triggered by each group of thermocouples and the position of each group of thermocouples, the wind direction is fitted from the first group of thermocouples triggered to the group of thermocouples triggered later, as shown below. Figure 2 As shown, in one case, the fitted wind direction is as shown in F. That is, when the wind blows over the first thermocouple 22 of the first mounting plate 21, if the first thermocouple 22 and the corresponding second thermocouple 24 in region I are triggered first, then the first thermocouple 22 and the corresponding second thermocouple 24 in region II are triggered, and finally the first thermocouple 22 and the corresponding second thermocouple 24 in region III are triggered, then the fitted wind direction is as shown in F.

[0053] In this embodiment, a first thermocouple 22 and a second thermocouple 24 constitute a thermocouple group, that is, form a temperature sensor.

[0054] In one alternative implementation, the host computer is configured to acquire the tilt direction of the wind direction based on the temperature changes of the two temperature measuring devices 2.

[0055] In this embodiment, for example, if the upper temperature measuring mechanism 2 is triggered before the lower temperature measuring mechanism 2, the direction of the wind tilt is approximately downward.

[0056] At least one other disclosed embodiment also provides a method of operating the above-described mine wind speed measurement system, comprising: controlling the operation of the temperature regulating mechanism 1 according to the ambient temperature through a control module to adjust the temperature of the first thermocouple 22 in the temperature measuring mechanism 2, so as to improve the response speed of the temperature measuring mechanism 2 when detecting temperature.

[0057] In one optional implementation, when wind blows into the gap between the first mounting plate 21 and the second mounting plate 23, it causes a change in the temperature detected by several sets of first thermocouples 22 and second thermocouples 24. The control module is configured to send the temperature detected by each set of first thermocouples 22 and second thermocouples 24 to a host computer via a communication module. The host computer is configured to obtain the wind speed based on the temperature changes detected by each set of first thermocouples 22 and second thermocouples 24.

[0058] In summary, this mine wind speed measurement system controls the operation of the temperature adjustment mechanism 1 based on the ambient temperature through the control module, thereby adjusting the temperature of the first thermocouple 22 in the temperature measuring mechanism 2. This improves the response speed of the temperature measuring mechanism 2 when detecting temperature, and thus realizes the adjustment of the temperature difference between the first thermocouple 22 and the second thermocouple 24 according to the ambient temperature, thereby improving the response speed of the temperature measuring mechanism 2 when detecting temperature and improving the accuracy of wind speed detection.

[0059] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0060] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0061] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0062] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A mine wind speed measurement system, characterized in that, include: A control module, and a temperature regulating mechanism (1) electrically connected to the control module; Temperature measuring mechanisms (2) are provided on both the top and bottom surfaces of the temperature regulating mechanism (1). The control module is configured to control the operation of the temperature regulating mechanism (1) according to the ambient temperature, so as to adjust the temperature of the first thermocouple (22) in the temperature measuring mechanism (2) and improve the response speed of the temperature measuring mechanism (2) when detecting temperature; The temperature measuring mechanism (2) includes: a first mounting plate (21); The first mounting plate (21) of one of the temperature measuring mechanisms (2) is set on the top surface of the temperature regulating mechanism (1), and the first mounting plate (21) of the other temperature measuring mechanism (2) is set on the bottom surface of the temperature regulating mechanism (1); The first mounting plate (21) has several first thermocouples (22) that are electrically connected to the control module on the side away from the temperature regulation mechanism (1). The first mounting plate (21) is connected to the second mounting plate (23) by a serpentine connecting strip (25) so that a gap is formed between the first mounting plate (21) and the second mounting plate (23); The second mounting plate (23) is provided with a second thermocouple (24) corresponding to the first thermocouple (22) on the side facing the first mounting plate (21). The second thermocouple (24) is electrically connected to the first thermocouple (22) and is also electrically connected to the control module. The control module is electrically connected to a communication module to establish communication with the host computer. When wind blows into the gap between the first mounting plate (21) and the second mounting plate (23), it causes a change in the temperature detected by several sets of first thermocouples (22) and second thermocouples (24). The control module is configured to send the temperature detected by each set of first thermocouples (22) and second thermocouples (24) to the host computer through the communication module. The host computer is configured to obtain the wind speed based on the temperature change detected by each set of first thermocouples (22) and second thermocouples (24).

2. The mine wind speed measurement system as described in claim 1, characterized in that, Both the first thermocouple (22) and the second thermocouple (24) are hemispherical.

3. The mine wind speed measurement system as described in claim 1, characterized in that, The host computer is configured to acquire the temperature changes of each group of first thermocouples (22) and second thermocouples (24) at the same time point based on the temperature changes detected by each group of first thermocouples (22) and second thermocouples (24), mark the groups of first thermocouples (22) and second thermocouples (24) that show temperature changes at different time points, obtain the wind direction based on the time point and the direction of temperature change, and obtain the wind direction by fitting from the first thermocouple group to the later thermocouple group based on the time sequence of temperature detection triggered by each group of thermocouples and the position of each group of thermocouples.

4. The mine wind speed measurement system as described in claim 1, characterized in that, The host computer is configured to obtain the tilt direction of the wind direction according to the temperature change sequence of the two temperature measuring devices (2).

5. A method for operating the mine wind speed measurement system as described in any one of claims 1-4, characterized in that, include: The control module controls the operation of the temperature regulating mechanism (1) according to the ambient temperature to adjust the temperature of the first thermocouple (22) in the temperature measuring mechanism (2) so as to improve the response speed of the temperature measuring mechanism (2) when detecting temperature.

6. The working method as described in claim 5, characterized in that, When wind blows into the gap between the first mounting plate (21) and the second mounting plate (23), it causes a change in the temperature detected by several sets of first thermocouples (22) and second thermocouples (24). The control module is configured to send the temperature detected by each set of first thermocouples (22) and second thermocouples (24) to the host computer through the communication module. The host computer is configured to obtain the wind speed based on the temperature change detected by each set of first thermocouples (22) and second thermocouples (24).

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