Smoke control system air velocity monitoring device and method

Abstract

The application discloses a kind of smoke exhaust system wind speed monitoring device and method, it is related to ventilation equipment technical field, comprising: air pipe, further comprising: detection pipe, wind speed detection component, position adjusting component, driving component and control unit;The detection pipe one end is fixedly installed in the one end of the air pipe;The wind speed detection component is arranged in the detection pipe, to detect the wind speed and air volume of gas discharged from the air pipe;The position adjusting component is arranged in the detection pipe, to adjust the position of the wind speed detection component in the detection pipe by the position adjusting component;The driving component is installed in the one side outer wall of the detection pipe;The beneficial effects of the application: the monitoring position of wind wheel sensor is dynamically adjusted, the air volume and wind speed of smoke exhaust are detected in real time, without manual disassembly adjustment, reduce the air volume calculation error, convenient operation.

Description

Technical Field

[0001] This application relates to the field of ventilation equipment technology, and in particular to a wind speed monitoring device and method for smoke extraction systems. Background Technology

[0002] Mechanical smoke control systems are core facilities for blocking the spread of fire smoke and ensuring the safety of evacuation routes. Accurate monitoring of wind speed and volume is crucial for the system's efficient operation. The system consists of two main components: pressurized air supply and mechanical smoke exhaust. During fire and routine maintenance, differentiated wind speed control is required based on duct material and vent type: In pressurized air supply systems, the wind speed in metal ducts should not exceed 20 m / s, and in non-metallic ducts, it should not exceed 15 m / s. The wind speed at pressurized air supply outlets should not exceed 7 m / s to maintain positive pressure in evacuation routes and ensure personnel safety. In mechanical smoke exhaust systems, the wind speed in metal ducts should not exceed 20 m / s, and in non-metallic ducts, it should not exceed 15 m / s. The wind speed at pressurized air supply outlets and smoke exhaust outlets should not exceed 10 m / s to avoid excessive intake of surrounding air, which could affect the actual smoke exhaust volume. During routine maintenance, the airflow must be stably controlled to balance system energy consumption and smoke control performance. As modern buildings upgrade to high-rise buildings and industrial workshops expand their production scale, the pipe specifications of mechanical smoke control systems become more complex and the airflow distribution within the pipes becomes uneven. Traditional monitoring devices are no longer suitable for the needs of intelligent fire protection and dynamic working condition monitoring.

[0003] Traditional mechanical smoke extraction systems typically use wind speed and air volume monitoring devices that directly fix the impeller sensor at multiple monitoring points to measure the wind speed and air volume at each point. However, when testing other monitoring points, each device must be manually disassembled, adjusted, and re-fixed. A limited number of fixed points can lead to significant errors in air volume calculation, failing to reflect the true smoke extraction effect. Conversely, a large number of fixed points necessitates frequent manual adjustments to the detection positions, making it impossible to dynamically reflect the air volume and wind speed during smoke extraction. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a wind speed monitoring device and method for smoke extraction systems. Its advantages include: dynamically adjusting the monitoring position of the impeller sensor, real-time detection of smoke extraction airflow and wind speed, elimination of manual disassembly and adjustment, reduced airflow calculation errors, and convenient operation.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a wind speed monitoring device for a smoke exhaust system, comprising: a duct, and further comprising: a detection tube, a wind speed detection component, an adjustment component, a drive component, and a control unit; one end of the detection tube is fixedly installed at one end of the duct; the wind speed detection component is disposed inside the detection tube for detecting the wind speed and air volume of the gas discharged from the duct; the adjustment component is disposed inside the detection tube for adjusting the position of the wind speed detection component within the detection tube; the drive component is installed on one outer wall of the detection tube for driving the adjustment component to adjust the position of the wind speed detection component; the control unit is electrically connected to the wind speed detection component and the drive component respectively.

[0006] Preferably, the adjustment assembly includes: a first mounting frame, a second mounting frame, a plurality of mounting rods, a plurality of rotating rollers, and a plurality of baffles. Both the first and second mounting frames are arranged in a ring. The top and bottom outer walls of the first mounting frame are slidably mounted to the top and bottom inner walls of the detection tube via sliding components, respectively. The second mounting frame is rotatably mounted to the inner circumference of the first mounting frame via bearings. The plurality of mounting rods are respectively arranged and fixedly mounted to one side of the outer circumference of the second mounting frame. The plurality of rotating rollers are rotatably mounted to the plurality of mounting rods away from the second mounting frame. At one end, the bottom and top ends of the baffle are both arc-shaped, while the other ends of the top and bottom of the baffle are both straight. The edges between the straight and arc-shaped segments of the baffle are smooth curved surfaces. Several baffles are equidistantly arranged and rotatably mounted on the inner wall of the detection tube near the mounting rod via torsion spring shafts at their middle positions on one side. Several rotating rollers are used in conjunction with several baffles. The wind speed detection assembly includes several wind turbine sensors, which are equidistantly arranged and fixedly mounted on the inner circumference of the mounting frame two.

[0007] Preferably, the drive assembly includes: a rotary motor, two mounting plates, a threaded rod, a sliding sleeve, and two gears. A support frame is fixedly mounted on the bottom outer wall of the detection tube. The rotary motor is fixedly mounted on one side of the top of the support frame. The two mounting plates are respectively vertically fixedly mounted on both ends of one side of the inner wall of the detection tube. The threaded rod is horizontally rotatably mounted between the two mounting plates at their close ends. The sliding sleeve is fixedly mounted on one side outer wall of the mounting frame and slides on the threaded rod. The inner circumference of the sliding sleeve has a thread that meshes with the threaded rod. One gear is fixedly mounted on one end of the threaded rod, and the other gear is fixedly mounted on the output shaft of the rotary motor. The two gears are meshed.

[0008] Preferably, a locking clamp is fixedly installed on the outer side of the connection between the detection tube and the air duct, and a high-temperature resistant sealing gasket is fixedly installed on the inner wall of the locking clamp. A plurality of reserved holes are opened at one end of the locking clamp, and fastening bolts are fixedly installed in each of the plurality of reserved holes.

[0009] Preferably, the control unit includes: a data processing module, a parameter input interface, and a data storage module. The input terminal of the data processing module is electrically connected to the output terminal of the wind turbine sensor, and the data storage module is electrically connected to the data processing module.

[0010] Preferably, an audible and visual alarm is fixedly installed on the top outer wall of the detection tube, and the audible and visual alarm is electrically connected to the data processing module.

[0011] Preferably, the sliding assembly includes: a slide rail and a slider, the two slide rails are respectively fixedly installed on the top inner wall and the bottom inner wall of the detection tube, the two sliders are respectively slidably installed on the two slide rails, and the two sliders are respectively fixedly installed on the top outer wall and the bottom outer wall of the mounting frame.

[0012] A method for monitoring wind speed in a smoke control system includes the following steps: S1: Start the control unit and start the rotating motor. Its output shaft drives the gear to rotate. The threaded rod rotates through the gear meshing transmission, thereby driving the sliding sleeve to slide along the axial direction of the threaded rod. At the same time, the mounting bracket 1 slides stably in the detection tube along the slide rail through the slider, adjusting the axial position of the mounting bracket 1. S2: When the first mounting bracket moves axially, the second mounting bracket moves synchronously. The rotating roller at the end of the mounting rod contacts the arc-shaped surface of the baffle and slides along it. The circumferential component force drives the second mounting bracket to rotate around the bearing, so that the wind turbine sensor adjusts the circumferential angle synchronously. If the movement continues, the rotating roller pushes the baffle to rotate around the torsion spring shaft to avoid jamming. When moving in the opposite direction, the rotating roller contacts the top of the baffle, driving the second mounting bracket to rotate in the opposite direction. S3: After the wind turbine sensor is adjusted to the correct position, the wind turbine sensor is activated to detect the wind speed and air volume of the gas discharged from the duct and entering the detection tube. If fine-tuning is required during the detection, the control unit controls the drive assembly and the adjustment assembly to adjust their positions again. S4: Input parameters such as the size of the smoke exhaust outlet (or pressurized air supply outlet), the building area of ​​the smoke control zone, the standard threshold, and the detection interval through the parameter input interface. The wind turbine sensor transmits the real-time wind speed data to the data processing module. After verifying the data, the data processing module calculates the maximum, minimum, and average wind speed, and calculates the total smoke exhaust volume for a single smoke exhaust outlet (or pressurized air supply outlet) and the total smoke exhaust volume for the smoke control zone in combination with the area of ​​the smoke exhaust outlet (or pressurized air supply outlet). S5: The data processing module transmits the raw data and calculation results to the data storage module and stores them in chronological order. The data processing module compares the calculation results with the standard threshold. If there is an anomaly, the audible and visual alarm is triggered to issue a warning, and the abnormal data is stored at the same time. If there is no anomaly, the data is displayed on the display device, and the audible and visual alarm remains in standby mode.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: (1) This invention proposes a wind speed monitoring device for a smoke extraction system. It comprises a duct, a detection tube, a wind turbine sensor, a mounting frame one, a mounting frame two, several mounting rods, several rotating rollers, several baffles, a drive assembly, and a control unit. The control unit drives the drive assembly to move the mounting frame one axially along the detection tube, while the mounting frame two moves synchronously. The rotating rollers gradually contact the bottom arc-shaped surface of the baffles. Upon initial contact, the rotating rollers slide along the arc-shaped surface, and the mounting rods drive the mounting frame two to rotate around the bearing, causing the wind turbine sensor to synchronously adjust its circumferential angle. Subsequently... As the axial movement continues, when the thrust of the rotating roller exceeds the elastic force of the torsion spring shaft, the baffle rotates towards the inner wall of the detection tube, providing a buffer for the rotating roller to avoid jamming, allowing it to continuously drive the second mounting frame to rotate. When the first mounting frame moves axially in the opposite direction, the rotating roller contacts the top of the baffle, and the thrust drives the baffle to rotate. The rotating roller moves axially and vertically, thereby driving the second mounting frame to rotate in the opposite direction. During this process, air volume and wind speed are detected, realizing dynamic adjustment of the monitoring position of the impeller sensor and real-time detection of the air volume and wind speed of the exhaust smoke. No manual disassembly and adjustment are required, reducing the error in air volume calculation and making the operation convenient.

[0014] (2) This invention proposes a method for monitoring wind speed in a smoke control system. The method includes a data processing module, a parameter input interface, and a data storage module. Parameters are input through the parameter input interface, including the size of the smoke exhaust outlet (or pressurized air supply outlet), the building area of ​​the smoke control zone, standard thresholds (e.g., the wind speed at the smoke exhaust outlet of the pressurized air supply outlet is not greater than 10 m / s, and the smoke exhaust volume of the smoke control zone is not less than 60 m³ / (h・m²) and not less than 15000 m³ / h when the net height of the building space is ≤6m), and the second-level wind speed detection interval. The wind turbine sensor transmits the wind speed data (V1, V2…V…) at each test point. nThe data is transmitted to the data processing module, which verifies and calculates the maximum (Vmax), minimum (Vmin), and average (Vavg) wind speeds. Combined with the area of ​​the smoke exhaust (or pressurized air supply) outlet, it calculates the smoke exhaust volume (Ln) of a single smoke exhaust (or pressurized air supply) outlet and the total smoke exhaust (supply) volume (S) of the smoke control zone using a formula. The data processing module then transmits the data to the data storage module, storing it by time and supporting retrieval and export. The data processing module compares the results with thresholds; if an anomaly is detected, an alarm is triggered and information is marked; otherwise, the data is displayed. The stored data can also serve as a basis for fire protection maintenance records, achieving automation, data accuracy, and traceability of the testing process for the wind speed and air volume monitoring of the smoke control system, and facilitating viewing by testing personnel and fire protection maintenance records. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a perspective view highlighting the threaded rod in this invention.

[0017] Figure 3 For the present invention Figure 2 The 3D image highlighting point A is shown in the image.

[0018] Figure 4 This is a perspective view highlighting the baffle in this invention.

[0019] Figure 5 For the present invention Figure 4 The 3D diagram highlighting point B is shown in the image.

[0020] Figure 6 This is a perspective view highlighting the air duct in this invention.

[0021] Figure 7 For the present invention Figure 6 The 3D image highlighting point C is shown in the image.

[0022] Figure 8 This is a connection logic diagram of the control unit in this invention.

[0023] In the diagram: 1. Air duct; 2. Detection tube; 201. Mounting bracket one; 202. Mounting bracket two; 203. Wind turbine sensor; 204. Mounting rod; 205. Rotating roller; 206. Baffle; 301. Rotating motor; 302. Mounting plate; 303. Support frame; 304. Threaded rod; 305. Sliding sleeve; 306. Gear; 401. Data processing module; 402. Parameter input interface; 403. Data storage module; 501. Locking clamp; 601. Audible and visual alarm; 701. Slide rail; 702. Slider. Detailed Implementation

[0024] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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 should not be construed as limiting the specific protection scope of this application.

[0026] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] One preferred embodiment of this application, such as Figures 1 to 8 As shown, a wind speed monitoring device for a smoke extraction system includes: a duct 1, and further includes: a detection tube 2, a wind speed detection component, an adjustment component, a drive component, and a control unit; one end of the detection tube 2 is fixedly installed at one end of the duct 1; the wind speed detection component is disposed inside the detection tube 2 to detect the wind speed and air volume of the gas discharged from the duct 1; the adjustment component is disposed inside the detection tube 2 to adjust the position of the wind speed detection component within the detection tube 2; the drive component is installed on one outer wall of the detection tube 2 to drive the adjustment component to adjust the position of the wind speed detection component; the control unit is electrically connected to the wind speed detection component and the drive component respectively.

[0028] The control unit is activated, which first activates the drive component, which then drives the adjustment component to adjust the wind speed detection component to a suitable detection position within the detection tube 2. Once the wind speed detection component is in position, the control unit activates it to detect the wind speed and airflow of the gas exiting from duct 1 and entering the detection tube 2. If further optimization of the detection position is needed during the detection process, the control unit can again control the drive component and the adjustment component to fine-tune the position of the wind speed detection component to ensure accurate detection data. After the detection is completed, the wind speed detection component transmits the data to the control unit, completing the entire wind speed and airflow monitoring operation. This achieves dynamic adjustment of the impeller sensor's monitoring position, real-time detection of the exhaust airflow and wind speed, eliminating the need for manual disassembly and adjustment, reducing airflow calculation errors, and providing convenient operation.

[0029] Further reference Figures 2-5 and Figure 7 The adjustment assembly includes: mounting frame one 201, mounting frame two 202, several mounting rods 204, several rotating rollers 205, and several baffles 206. Mounting frame one 201 and mounting frame two 202 are both arranged in a ring. The top and bottom outer walls of mounting frame one 201 are slidably mounted to the top and bottom inner walls of the detection tube 2 via sliding components, respectively. Mounting frame two 202 is rotatably mounted to the inner circumference of mounting frame one 201 via bearings. Several mounting rods 204 are arranged and fixedly mounted on one side of the outer wall of the circumference of mounting frame two 202. Several rotating rollers 205 are rotatably mounted on the mounting rods 204 away from the mounting frame. At one end of the second 202, the bottom and top ends of the baffle 206 are both arc-shaped, while the other ends of the top and bottom of the baffle 206 are both straight. The edges between the straight and arc-shaped segments of the baffle 206 are smooth curved surfaces. The middle positions of one side of several baffles 206 are equidistantly arranged and rotatably installed on the inner wall of the detection tube 2 near the mounting rod 204 via torsion spring shafts. Several rotating rollers 205 are used in conjunction with several baffles 206. The wind speed detection component includes several wind turbine sensors 203, which are equidistantly arranged and fixedly installed on the inner circumference of the second mounting frame 202.

[0030] After the control unit is started, when the drive assembly moves the first mounting bracket 201 along the axial direction of the detection tube 2, the second mounting bracket 202 moves axially synchronously with the first mounting bracket 201. At this time, the rotating roller 205 at the end of the mounting rod 204 will gradually contact the arc-shaped surface at the bottom of the baffle 206. Taking the cooperation between one of the rotating rollers 205 and the corresponding baffle 206 as an example: at the initial contact, the rotating roller 205 slides along the arc-shaped surface at the bottom of the baffle 206. Because the arc-shaped surface has curvature, the axial force will be decomposed into a circumferential component. This component force is transmitted to the second mounting bracket 202 via the mounting rod 204, forcing the second mounting bracket 202 to rotate relative to the first mounting bracket 201 around the bearing. This, in turn, drives the wind turbine sensor 203 on the inner circumference of the second mounting bracket 202 to rotate synchronously, achieving circumferential angle adjustment. If axial movement continues, the thrust of the rotating roller 205 on the baffle 206 gradually increases. When the thrust exceeds the elastic force of the torsion spring shaft, the baffle 206 will rotate around the torsion spring shaft towards the inner wall of the detection tube 2. This design avoids the baffle 206 from rotating due to the force of the torsion spring shaft. Excessive bottom curvature causes the rotating roller 205 to become stuck. If the baffle 206 cannot rotate, the rotating roller 205 will be blocked by the curved surface, unable to continue axial movement or drive the mounting bracket 202 to rotate. It may even cause the mounting rod 204 or the rotating roller 205 to break due to excessive force. The rotation of the baffle 206 provides a buffer space for the rotating roller 205, allowing it to continue axial movement while maintaining contact with the curved surface, continuously driving the mounting bracket 202 to rotate through the circumferential component force. When the mounting bracket... When the first 201 moves axially in the opposite direction, the rotating roller 205 contacts the top of the baffle 206, and the thrust on the baffle 206 causes the baffle 206 to rotate. The rotating roller 205 moves axially and vertically, thereby causing the second mounting bracket 202 to rotate in the opposite direction. During this process, the air volume and wind speed are detected at the corresponding positions, realizing the dynamic adjustment of the monitoring position of the impeller sensor, and real-time detection of the air volume and wind speed of the exhaust smoke. There is no need for manual disassembly and adjustment, which reduces the error of air volume calculation and makes the operation convenient.

[0031] Further reference Figures 1-3 The drive assembly includes: a rotary motor 301, two mounting plates 302, a threaded rod 304, a sliding sleeve 305, and two gears 306. A support frame 303 is fixedly installed on the bottom outer wall of the detection tube 2. The rotary motor 301 is fixedly installed on one side of the top of the support frame 303. The two mounting plates 302 are respectively vertically fixed at both ends of one side of the inner wall of the detection tube 2. The threaded rod 304 is horizontally rotatably installed between the two mounting plates 302 at their close ends. The sliding sleeve 305 is fixedly installed on one side of the outer wall of the mounting frame 201 and slides on the threaded rod 304. The inner circumference of the sliding sleeve 305 is provided with threads that mesh with the threaded rod 304. One gear 306 is fixedly installed at one end of the threaded rod 304, and the other gear 306 is fixedly installed on the output shaft of the rotary motor 301. The two gears 306 are meshed.

[0032] After the rotating motor 301 is started, its output shaft begins to rotate, driving the gear 306 fixed on the output shaft to rotate synchronously. Since the two gears 306 mesh with each other, another gear 306 fixed at one end of the threaded rod 304 rotates accordingly, thereby driving the threaded rod 304, which is horizontally installed between the two mounting plates 302, to rotate. Since the sliding sleeve 305 is fixed on one side of the outer wall of the mounting bracket 201, and the inner circumference of the sliding sleeve 305 is provided with threads that mesh with the threaded rod 304, when the threaded rod 304 rotates, it will drive the sliding sleeve 305 to slide along the axial direction of the threaded rod 304, thereby driving the mounting bracket 201 to slide synchronously on the top inner wall and bottom inner wall of the detection tube 2 through the sliding assembly, realizing the adjustment of the axial position of the mounting bracket 201 in the detection tube 2.

[0033] Further reference Figure 1 A locking clamp 501 is fixedly installed on the outside of the joint between the detection tube 2 and the air duct 1. A high-temperature resistant sealing gasket is fixedly installed on the inner wall of the locking clamp 501. Several reserved holes are opened at one end of the locking clamp 501, and fastening bolts are fixedly installed in each of the reserved holes.

[0034] The high-temperature resistant sealing gasket is completely fitted into the gap where the exhaust pipe 1 and the detection pipe 2 meet, ensuring that the sealing gasket covers the entire joint area. Then, several fastening bolts are inserted into the reserved holes of the locking clamp 501. First, the bolts are turned by hand to initially tighten the locking clamp 501. Then, the bolts are tightened gradually and evenly in a diagonal sequence using a tool to avoid deformation of the locking clamp 501 or misalignment of the sealing gasket due to excessive local force. During the tightening process, it is necessary to observe whether the high-temperature resistant sealing gasket is tightly attached to the outer wall of the two pipes to ensure that there are no wrinkles or gaps, until the locking clamp 501 firmly holds the joint of the two pipes. Finally, check that the tightness of all bolts is consistent to complete the installation and fixation of the locking clamp 501. In this way, the cooperation between the locking clamp 501 and the high-temperature resistant sealing gasket enhances the sealing performance and connection strength at the joint between the detection pipe 2 and the air duct 1, preventing gas leakage from affecting the accuracy of wind speed detection.

[0035] Further reference Figure 8 The control unit includes a data processing module 401, a parameter input interface 402, and a data storage module 403. The input terminal of the data processing module 401 is electrically connected to the output terminal of the wind turbine sensor 203, and the data storage module 403 is electrically connected to the data processing module 401.

[0036] During the operation of the control unit, the initial parameter input operation is completed through the parameter input interface 402. The input content includes: the actual dimensions of each smoke exhaust outlet (or pressurized air supply outlet), length and width, used for subsequent calculation of the ventilation area F = length × width of the smoke exhaust outlet (or pressurized air supply outlet); the building area of ​​the corresponding smoke control zone; the standard thresholds set according to the "Technical Standard for Building Smoke Control and Exhaust Systems", such as the wind speed of the pressurized air supply exhaust outlet not exceeding 10m / s, and the smoke exhaust volume of the smoke control zone not less than 60m³ / (h・m²) and not less than 15000m³ / h when the net height of the building space is ≤6m; and the wind speed detection interval time set according to the test accuracy requirements, in seconds, used to obtain wind speed data at multiple time points during the test. After the wind turbine sensor 203 completes the wind speed detection, its output terminal will output the real-time wind speed data V1, V2...V at each test point accurate to two decimal places. n The data is transmitted to the input terminal of the data processing module 401. The data processing module 401 first performs preliminary verification on the received multiple sets of wind speed data to ensure that there are no abnormalities in the data transmission. Then, it performs calculations according to the preset algorithm: first, it calculates the maximum wind speed Vmax of the smoke exhaust outlet pressurized air supply outlet using the MAX function, Vmax = MAX (V1, V2...V...). n The minimum wind speed Vmin is calculated using the MIN function: Vmin = MIN(V1, V2, ..., V) n The average wind speed Vavg is calculated by summing and averaging: Vavg = (V1 + V2 + ... + V...). nNext, combining the ventilation area F of the smoke exhaust vent and pressurized air supply vent already entered through the parameter input interface 402, the smoke exhaust volume Ln of a single smoke exhaust vent and pressurized air supply vent is calculated according to the formula Ln=Vavg×F×3600, where 3600 is the conversion factor between hours and seconds, in m³ / h. Then, the smoke exhaust volumes of all smoke exhaust vents and pressurized air supply vents within the same smoke control zone are summed to obtain the total smoke exhaust volume S=L1+L2+……+Ln of the smoke control zone. Subsequently, the data processing module 401 will synchronously transmit the original wind speed data, the calculated wind speed statistics Vmax, Vmin, Vavg, the smoke exhaust volume of a single smoke exhaust vent and pressurized air supply vent, and the total smoke exhaust volume of the smoke control zone to the data storage module 403. The data storage module 403 categorizes and stores these data in chronological order, saving both real-time detection data and accumulating historical detection data. This allows for subsequent viewing of historical records or data export by time dimension. Simultaneously, the data processing module 401 automatically compares the calculation results with the standard thresholds entered through the parameter input interface 402. If the detected air velocity at a certain smoke exhaust outlet pressurized air supply outlet exceeds 10 m / s, or if the total smoke exhaust volume of the smoke control zone does not meet the standard requirements (e.g., in the patent example, the total smoke exhaust volume of the dance hall smoke control zone must be no less than 12000 m³ / h), the module will process the data. The actual calculated value of 15154.56 m³ / h meets the requirement and should not be less than 15000 m³ / h. If it does, an alarm signal will be triggered immediately, and the non-compliant smoke control zone number and specific parameters exceeding the standard will be clearly marked on the associated display device, such as "smoke exhaust outlet pressurized air supply outlet 1 wind speed 7.2 m / s, meets the requirement; smoke exhaust outlet pressurized air supply outlet 2 wind speed 10.5 m / s, exceeds the standard." If all parameters meet the specifications, the wind speed, statistical values, and smoke exhaust volume data of each test point will be clearly displayed on the display device for the test personnel to view intuitively. At the same time, the test data stored in the data storage module 403 can be used as the basis for fire protection technical service agencies to record periodic tests and maintenance, ensuring that the test process is traceable.

[0037] Further reference Figure 1 An audible and visual alarm 601 is fixedly installed on the top outer wall of the detection tube 2, and the audible and visual alarm 601 is electrically connected to the data processing module 401.

[0038] The wind turbine sensor 203 transmits the wind speed data detected at each test point of the smoke exhaust and pressurized air supply outlet to two decimal places to the data processing module 401. The data processing module 401 calculates the maximum, minimum, and average wind speeds and corresponding smoke exhaust volumes of each smoke exhaust and pressurized air supply outlet according to a preset algorithm. This is combined with relevant threshold values ​​from the "Technical Standard for Smoke Control and Exhaust Systems in Buildings" GB51251-2017, which are entered through the parameter input interface 402. For example, the wind speed at the smoke exhaust and pressurized air supply outlet should not exceed 10 m / s, and the smoke exhaust volume of the smoke control zone should not be less than 60 m³ / (h・m²) when the building's net height is ≤6m. The calculation results are automatically compared with the standard thresholds, and the calculation results are not less than 15,000 m³ / h. If any abnormality is found after comparison, such as the wind speed at a pressurized air supply and smoke exhaust outlet exceeding 10 m / s, or the total smoke exhaust volume of the smoke control zone not meeting the standard requirements, the data processing module 401 will immediately generate an alarm trigger signal and transmit the signal to the audible and visual alarm 601 electrically connected to it. After receiving the signal, the audible and visual alarm 601 will quickly activate and emit a clear sound warning and a light warning to visually remind the on-site testing personnel or the fire control room staff. If the current smoke control system has issues with wind speed or smoke exhaust volume that do not meet specifications, and the data processing module 401 confirms that all parameters meet the specifications after comparison, no alarm signal will be generated, and the audible and visual alarm 601 will remain in standby mode without issuing a warning. In addition, when the audible and visual alarm 601 triggers the alarm, the data processing module 401 will simultaneously transmit the abnormal data, including the specific parameters exceeding the standard, the corresponding pressurized air supply outlet, smoke exhaust outlet, or smoke control zone information, to the data storage module 403 for recording and storage, so as to facilitate subsequent review of the cause of the abnormality and traceability of the monitoring process.

[0039] Further reference Figure 5 The sliding assembly includes a slide rail 701 and a slider 702. The two slide rails 701 are fixedly installed on the top inner wall and bottom inner wall of the detection tube 2, respectively. The two sliders 702 are slidably installed on the two slide rails 701, respectively. The two sliders 702 are fixedly installed on the top outer wall and bottom outer wall of the mounting bracket 201, respectively.

[0040] When the drive assembly drives the mounting bracket 201 to adjust its position along the axial direction of the detection tube 2 via the threaded rod 304 and the sliding sleeve 305, the slider 702 will slide stably along the slide rail 701 in sync. The slide rail 701 provides a fixed axial guide trajectory for the slider 702, preventing the mounting bracket 201 from shifting laterally, shaking, or getting stuck during movement.

[0041] like Figures 1 to 8 As shown, a method for monitoring wind speed in a smoke control system is characterized by comprising the following steps: Step 1: Start the control unit and start the rotating motor 301. Its output shaft drives the gear 306 to rotate. Through the meshing transmission of the gear 306, the threaded rod 304 rotates, which in turn drives the sliding sleeve 305 to slide along the axial direction of the threaded rod 304. At the same time, the mounting bracket 201 slides stably in the detection tube 2 along the slide rail 701 via the slider 702, adjusting the axial position of the mounting bracket 201. Step 2: When mounting bracket 1 201 moves axially, mounting bracket 202 moves synchronously. The rotating roller 205 at the end of mounting rod 204 contacts the arc surface of baffle 206 and slides along it. Through the circumferential component force, mounting bracket 202 rotates around the bearing, so that the wind turbine sensor 203 adjusts the circumferential angle synchronously. If the movement continues, the rotating roller 205 pushes the baffle 206 to rotate around the torsion spring shaft to avoid jamming. When moving in the opposite direction, the rotating roller 205 contacts the top of the baffle 206, causing mounting bracket 202 to rotate in the opposite direction. Step 3: After the position of the wind turbine sensor 203 is adjusted to the correct position, start the wind turbine sensor 203 to detect the wind speed and air volume of the gas discharged from the air duct 1 and entering the detection tube 2. If fine adjustment is required during the detection, the control unit controls the drive component and the adjustment component to adjust the position again. Step 4: Input parameters such as the size of the smoke exhaust outlet (or pressurized air supply outlet), the building area of ​​the smoke control zone, the standard threshold, and the detection interval through the parameter input interface 402. The wind turbine sensor 203 transmits the real-time wind speed data to the data processing module 401. After verifying the data, the data processing module 401 calculates the maximum, minimum, and average wind speed, and calculates the total smoke exhaust volume of a single outlet and the smoke control zone based on the area of ​​the pressurized air supply outlet. Step 5: The data processing module 401 transmits the raw data and calculation results to the data storage module 403, which stores them in chronological order. The data processing module 401 compares the calculation results with the standard threshold. If there is an anomaly, the audible and visual alarm 601 is triggered to issue a warning, and the abnormal data is stored at the same time. If there is no anomaly, the data is displayed on the display device, and the audible and visual alarm 601 remains in standby mode.

[0042] Working Principle: Before monitoring the wind speed and air volume of the mechanical smoke control system, first, completely adhere the high-temperature resistant sealing gasket on the inner wall of the locking clamp 501 to the gap where the duct 1 and the detection tube 2 meet, ensuring that the high-temperature resistant sealing gasket covers the entire joint area. Then, insert several fastening bolts into the pre-drilled holes at one end of the locking clamp 501. First, manually tighten the fastening bolts to initially tighten the locking clamp 501. Then, use a tool to gradually and evenly tighten the fastening bolts in a diagonal sequence to avoid deformation of the locking clamp 501 or misalignment of the high-temperature resistant sealing gasket due to excessive local stress. During the tightening process, observe whether the high-temperature resistant sealing gasket is tightly attached to the outer wall of the duct 1 and the detection tube 2, ensuring there are no wrinkles or gaps. Finally, check that the tightness of all fastening bolts is consistent to complete the installation and fixing of the locking clamp 501. Next, the control unit is activated. The control unit first activates the drive assembly. After starting the rotary motor 301, the output shaft of the rotary motor 301 begins to rotate, driving the gear 306 fixed on the output shaft of the rotary motor 301 to rotate synchronously. Since the two gears 306 mesh with each other, another gear 306 fixed to one end of the threaded rod 304 rotates accordingly, thereby driving the threaded rod 304, which is horizontally mounted between the two mounting plates 302 at their closest ends, to rotate. Because the sliding sleeve 305 is fixedly mounted on one side of the outer wall of the mounting bracket 201, and the inner circumference of the sliding sleeve 305 has threads that mesh with the threaded rod 304, when the threaded rod 304 rotates, it drives the sliding sleeve 305 to slide along the axial direction of the threaded rod 304. Simultaneously, the mounting bracket 201... The sliders 702, fixed to the top and bottom outer walls of the 201 mounting bracket, will synchronously slide stably along the slide rails 701 fixed to the top and bottom inner walls of the detection tube 2, thereby adjusting the axial position of the mounting bracket 201 within the detection tube 2. During the axial movement of the mounting bracket 201, the mounting bracket 202 will move axially synchronously with the mounting bracket 201. At this time, several mounting rods 204 mounted on one side of the outer wall of the circumference of the mounting bracket 202, and the rotating rollers 205 rotatably mounted at the ends away from the mounting bracket 202, will gradually contact the arc-shaped surface of the baffle 206 on the inner wall of the detection tube 2 near the mounting rods 204, which is equidistantly mounted via a torsion spring shaft. Upon initial contact, the rotating rollers 205 slide along the arc-shaped surface of the baffle 206, and the force of axial movement is decomposed into A circumferential force is transmitted to the second mounting bracket 202 via the mounting rod 204, forcing the second mounting bracket 202 to rotate relative to the first mounting bracket 201 around the bearing. This, in turn, drives several wind turbine sensors 203, which are equidistantly arranged and fixed to the inner circumference of the second mounting bracket 202, to rotate synchronously, thereby adjusting the circumferential angle of the wind turbine sensors 203. If axial movement continues, the thrust of the rotating roller 205 on the baffle 206 gradually increases. When the thrust exceeds the elastic force of the torsion spring shaft, the baffle 206 rotates around the torsion spring shaft towards the inner wall of the detection tube 2, providing a buffer space for the rotating roller 205 to avoid jamming. When the first mounting bracket 201 moves axially in the opposite direction, the rotating roller 205 contacts the top of the baffle 206, and the thrust on the baffle 206 causes the baffle 206 to rotate.While the rotating roller 205 moves axially, it drives the mounting bracket 202 to rotate in the opposite direction. After the impeller sensor 203 is adjusted to a suitable detection position by the adjustment component, the impeller sensor 203 is activated by the control unit. The impeller sensor 203 detects the wind speed and air volume of the gas discharged from the air duct 1 and entering the detection tube 2. If further optimization of the detection position is required during the detection process, the position of the impeller sensor 203 can be finely adjusted by controlling the drive component and the adjustment component again by the control unit. At the same time, during the operation of the control unit, the preliminary parameter input operation is completed through the parameter input interface 402. The input content includes the pressurization of each smoke exhaust port (or pressurized air supply port). The actual length and width of the air supply outlet are used for subsequent calculations of the ventilation area F of the smoke exhaust outlet (or pressurized air supply outlet), the building area of ​​the corresponding smoke control zone, the standard thresholds set according to the "Technical Standard for Building Smoke Control and Exhaust Systems" (e.g., the wind speed of the smoke exhaust outlet and pressurized air supply outlet is not greater than 10 m / s, and the smoke exhaust volume of the smoke control zone is not less than 60 m³ / (h·m²) and not less than 15000 m³ / h when the net height of the building space is ≤6m), and the wind speed detection interval time is set in seconds according to the test accuracy requirements. After the wind turbine sensor 203 completes the wind speed detection, its output terminal will output the real-time wind speed data V1, V2...V at each test point accurate to two decimal places. n The data is transmitted to the input terminal of the data processing module 401. The data processing module 401 first performs preliminary verification on the received multiple sets of wind speed data to ensure that there are no abnormalities in the data transmission. Then, it calculates according to the preset algorithm: the maximum wind speed at the pressurized air outlet is obtained by using the MAX function, Vmax = MAX(V1, V2, ..., V...). n The minimum wind speed, Vmin, is obtained using the MIN function: Vmin = MIN(V1, V2, ..., V). n The average wind speed Vavg is obtained by summing and averaging: Vavg = (V1 + V2 + ... + V...). nNext, combining the ventilation area F of the smoke exhaust vent (or pressurized air supply vent) entered through the parameter input interface 402, the smoke exhaust volume Ln of a single pressurized air supply vent is calculated according to the formula Ln=Vavg×F×3600, where 3600 is the conversion factor between hours and seconds, in m³ / h. Then, the smoke exhaust volumes of all pressurized air supply vents within the same smoke control zone are summed to obtain the total smoke exhaust volume S=L1+L2+……+Ln of that smoke control zone. Subsequently, the data processing module 401 processes the original wind speed data and the calculated wind speed statistics V. The max, Vmin, Vavg values, smoke exhaust volume of a single pressurized air supply outlet, and total smoke exhaust volume of the smoke control zone are synchronously transmitted to the data storage module 403. The data storage module 403 stores these data in chronological order, supporting subsequent viewing of historical records or data export by time dimension. At the same time, the data processing module 401 automatically compares the calculation results with the standard thresholds entered through the parameter input interface 402. If any abnormalities are found, such as the air velocity at a pressurized air supply outlet exceeding 10m / s or the total smoke exhaust volume of the smoke control zone failing to meet the standard requirements, the module will process the data. The data processing module 401 immediately generates an alarm trigger signal and transmits it to the audible and visual alarm 601, which is fixedly installed on the top outer wall of the detection tube 2. Upon receiving the signal, the audible and visual alarm 601 quickly activates, emitting a clear audible and visual warning. If the data processing module 401 confirms that all parameters meet the specifications after comparison, no alarm signal is generated, and the audible and visual alarm 601 remains in standby mode. The data processing module 401 will clearly display the wind speed, wind speed statistics, and smoke exhaust volume data at each test point on the associated display device for intuitive viewing by the test personnel. When the audible and visual alarm 601 triggers an alarm, the data processing module 401 will also synchronously transmit the abnormal data, including specific parameters exceeding the standard and the corresponding pressurized air supply outlet or smoke prevention zone information, to the data storage module 403 for recording and storage. This facilitates subsequent review of the cause of the abnormality and tracing of the monitoring process, ultimately completing the entire wind speed and air volume monitoring operation. This achieves dynamic adjustment of the monitoring position of the impeller sensor, real-time detection of smoke exhaust air volume and wind speed, and eliminates the need for manual disassembly and adjustment, reducing air volume calculation errors and making operation convenient.

[0043] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A wind speed monitoring device for a smoke control system, comprising: The air duct (1) is characterized in that it further includes: The detection tube (2) is fixedly installed at one end of the air duct (1); A wind speed detection component is disposed inside the detection tube (2) to detect the wind speed and air volume of the gas discharged from the air duct (1); Adjustment component: The adjustment component is disposed inside the detection tube (2) for the wind speed detection component to adjust its position inside the detection tube (2) by means of the adjustment component; Drive component: The drive component is installed on one side of the outer wall of the detection tube (2) to drive the adjustment component to adjust the position of the wind speed detection component; The control unit is electrically connected to both the wind speed detection component and the drive component.

2. The wind speed monitoring device for a smoke extraction system as described in claim 1, characterized in that, The adjustment assembly includes: mounting frame one (201), mounting frame two (202), several mounting rods (204), several rotating rollers (205), and several baffles (206). Mounting frame one (201) and mounting frame two (202) are both arranged in a ring. The top outer wall and bottom outer wall of mounting frame one (201) are slidably mounted on the top inner wall and bottom inner wall of the detection tube (2) respectively via sliding components. Mounting frame two (202) is rotatably mounted on the circumferential inner wall of mounting frame one (201) via bearings. Several mounting rods (204) are arranged and fixedly mounted on one side of the circumference of mounting frame two (202). Each of the rotating rollers (205) is rotatably mounted on one end of each of the mounting rods (204) away from the mounting frame (202). The bottom and top ends of the baffle (206) are both arc-shaped, and the other ends of the top and bottom of the baffle (206) are both straight. The edges between the straight and arc segments of the baffle (206) are smooth curved surfaces. The middle positions of one side of each of the baffles (206) are rotatably mounted on the inner wall of the detection tube (2) near the mounting rod (204) by means of torsion spring shafts. Each of the rotating rollers (205) is used in conjunction with the baffles (206). The wind speed detection component includes: a plurality of wind turbine sensors (203), which are arranged at equal intervals and fixedly installed on the inner circumference of the mounting frame (202).

3. The wind speed monitoring device for a smoke extraction system as described in claim 2, characterized in that, The drive assembly includes: a rotary motor (301), two mounting plates (302), a threaded rod (304), a sliding sleeve (305), and two gears (306). A support frame (303) is fixedly installed on the bottom outer wall of the detection tube (2). The rotary motor (301) is fixedly installed on one side of the top of the support frame (303). The two mounting plates (302) are respectively vertically fixedly installed at both ends of the inner wall of one side of the detection tube (2). The threaded rod (304) is horizontally rotatably installed on the two mounting plates (302). Between the two ends that are close to each other, the sliding sleeve (305) is fixedly installed on one side of the outer wall of the mounting bracket (201). The sliding sleeve (305) is slidably sleeved on the threaded rod (304). The inner circumference of the sliding sleeve (305) is provided with a thread that meshes with the threaded rod (304). One of the gears (306) is fixedly installed on one end of the threaded rod (304), and the other gear (306) is fixedly installed on the output shaft of the rotating motor (301). The two gears (306) are meshed.

4. The wind speed monitoring device for a smoke extraction system as described in claim 1, characterized in that, A locking clamp (501) is fixedly installed on the outside of the connection between the detection tube (2) and the air duct (1). A high-temperature resistant sealing gasket is fixedly installed on the inner wall of the locking clamp (501). Several reserved holes are opened at one end of the locking clamp (501), and fastening bolts are fixedly installed in each of the reserved holes.

5. The wind speed monitoring device for a smoke extraction system as described in claim 3, characterized in that, The control unit includes a data processing module (401), a parameter input interface (402), and a data storage module (403). The input terminal of the data processing module (401) is electrically connected to the output terminal of the wind turbine sensor (203), and the data storage module (403) is electrically connected to the data processing module (401).

6. The wind speed monitoring device for a smoke extraction system as described in claim 5, characterized in that, An audible and visual alarm (601) is fixedly installed on the top outer wall of the detection tube (2), and the audible and visual alarm (601) is electrically connected to the data processing module (401).

7. The wind speed monitoring device for a smoke extraction system as described in claim 2, characterized in that, The sliding assembly includes a slide rail (701) and a slider (702). The two slide rails (701) are fixedly installed on the top inner wall and the bottom inner wall of the detection tube (2), respectively. The two sliders (702) are slidably installed on the two slide rails (701), respectively. The two sliders (702) are fixedly installed on the top outer wall and the bottom outer wall of the mounting bracket (201), respectively.

8. A method for monitoring wind speed in a smoke control and exhaust system, characterized in that, Includes the following steps: S1: Start the control unit and start the rotating motor (301). Its output shaft drives the gear (306) to rotate. Through the meshing transmission of the gear (306), the threaded rod (304) rotates, thereby driving the sliding sleeve (305) to slide along the axial direction of the threaded rod (304). At the same time, the mounting bracket (201) slides stably in the detection tube (2) along the slide rail (701) through the slider (702), adjusting the axial position of the mounting bracket (201). S2: When the first mounting bracket (201) moves axially, the second mounting bracket (202) moves synchronously. The rotating roller (205) at the end of the mounting rod (204) contacts the arc surface of the baffle (206) and slides along it. The second mounting bracket (202) is driven to rotate around the bearing by the circumferential component force, so that the wind turbine sensor (203) adjusts the circumferential angle synchronously. If it continues to move, the rotating roller (205) pushes the baffle (206) to rotate around the torsion spring shaft to avoid jamming. When moving in the opposite direction, the rotating roller (205) contacts the top of the baffle (206), driving the second mounting bracket (202) to rotate in the opposite direction. S3: After the position of the wind turbine sensor (203) is adjusted to the correct position, the wind turbine sensor (203) is activated to detect the wind speed and air volume of the gas discharged from the air duct (1) and entering the detection tube (2). If fine adjustment is required during the detection, the position of the drive component and the adjustment component is adjusted again by the control unit. S4: Input parameters such as the size of the smoke exhaust outlet (or pressurized air supply outlet), the building area of ​​the smoke prevention zone, the standard threshold and the detection interval through the parameter input interface (402). The wind turbine sensor (203) transmits the real-time wind speed data to the data processing module (401). After verifying the data, the data processing module (401) calculates the maximum, minimum and average wind speed, and calculates the total smoke exhaust volume of a single smoke exhaust outlet (or pressurized air supply outlet) and the total smoke exhaust volume of the smoke prevention zone in combination with the area of ​​the pressurized air supply outlet. S5: The data processing module (401) transmits the raw data and calculation results to the data storage module (403) and stores them in chronological order. The data processing module (401) compares the calculation results with the standard threshold. If there is an abnormality, the sound and light alarm (601) is triggered to issue a warning and the abnormal data is stored at the same time. If there is a normality, the data is displayed on the display device and the sound and light alarm (601) remains in standby mode.

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