An automatic continuous monitoring station around a nuclear facility

Abstract

This utility model discloses an automatic continuous monitoring station around a nuclear facility, including a housing, a radiation monitoring device, an air intake mechanism, a support, an air pump, a switching mechanism, and a collection pipe. The switching mechanism and the collection pipe are both located inside the housing, with the collection pipe situated in the middle of the housing. A support and a radiation monitoring device are mounted on the gas supply pipe I. An anemometer and a wind direction sensor are mounted on the support, and an air intake mechanism is located at the upper end of the gas supply pipe I. Gas enters the gas supply pipe I through the air intake mechanism. The radiation monitoring device monitors the incoming gas in real time, and the data collected by the anemometer and wind direction sensor are used to monitor the overall gas condition. The gas is then pumped into the housing via the air pump and the gas supply pipe II. This allows for maintenance of the collection pipe without affecting the collection operation, ensuring the continuity of monitoring. The collection pipe collects radioactive particles from the passing gas through a radioactive aerosol filter membrane, completing the monitoring work.

Description

Technical Field

[0001] This utility model belongs to the field of radiation environment monitoring technology, and specifically relates to an automatic continuous monitoring station around a nuclear facility. Background Technology

[0002] Nuclear energy, as a highly efficient and clean energy source, has many advantages, but it also carries the potential risk of releasing radioactive materials during operation. To ensure the safety of the public and the environment around nuclear facilities, establishing a reliable and efficient automatic continuous radiation monitoring system is an indispensable part of nuclear safety. Traditional environmental radiation monitoring mainly relies on manual sampling and laboratory analysis, which has disadvantages such as poor timeliness, data dispersion, and high risk.

[0003] A search revealed that the prior art, patent number CN212110797U, describes a noise-reducing chamber, aerosol sampling device, and a radiation environment monitoring station. This device samples aerosols in the air using a sampling motor and incorporates a sound-absorbing chamber to reduce noise generated during aerosol sampling. However, this device requires shutdown for maintenance or sample testing, making continuous operation difficult. Another search revealed that patent number CN111221032A describes an easily maintainable integrated fully automatic radiation environment monitoring station, comprising a cabin, a fully automatic radioactive aerosol monitoring instrument located on one side of the cabin, and several detection elements on the side furthest from the instrument. However, this device has a limited sampling range, and the obtained sample data is distorted, exhibiting bias and lag. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an automatic continuous monitoring station around a nuclear facility. Gas enters the gas supply pipe I through the gas inlet mechanism. The radiation monitoring device monitors the incoming gas in real time. The gas condition is monitored by data collected by wind speed and wind direction sensors. The gas is then sent into the housing through the gas pump and gas supply pipe II. The switching mechanism ensures the working status of the collection pipe and allows maintenance of the collection pipe without affecting the collection work, ensuring the continuity of monitoring. The collection pipe collects radioactive aerosols in the passing gas through a radioactive aerosol filter membrane. The gas is then discharged into the housing through the gas outlet, completing the monitoring work.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An automated continuous monitoring station for the perimeter of a nuclear facility includes a housing, a gas supply pipe I, a radiation monitoring device, an air intake mechanism, an air pump, a gas supply pipe II, a switching mechanism, a collection pipe, and an air outlet. The housing is located at the bottom of the overall device. The housing has a maintenance window on its side wall. The housing has two sets of partitions dividing it into three chambers, ensuring airtightness between the chambers. The switching mechanism and the collection pipe are both located inside the housing; the switching mechanism is located at the front end of the housing, and the collection pipe is located in the middle of the housing. The switching mechanism and the collection pipe cooperate with each other. The air outlet is located at the rear end of the housing. The air pump is located at the upper end of the housing and connects to gas supply pipe I and gas supply pipe II. Gas supply pipe II is located at the front end of the housing. A support and a radiation monitoring device are mounted on gas supply pipe I. The radiation monitoring device is a radiation detector. A scintillator is used to measure beta activity or gamma rays, enabling preliminary nuclide identification. The signal is then converted into an electrical signal by a photodiode. An anemometer and wind direction sensor are mounted on the support frame, and an intake mechanism is located at the top of gas delivery pipe I. Gas enters gas delivery pipe I through the intake mechanism. A radiation monitoring device monitors the incoming gas in real time, and the data collected by the anemometer and wind direction sensor are used to monitor the overall gas condition. The gas is then pumped into the chamber via gas delivery pipe II. A switching mechanism ensures the working status of the collection tube, allowing maintenance without affecting the collection process and ensuring continuous monitoring. The collection tube collects radioactive particles from the passing gas through a radioactive aerosol filter membrane. The gas is then discharged from the chamber through the outlet, completing the monitoring process.

[0007] The air intake mechanism includes an air intake pipe I, an air intake pipe II, a U-shaped plate, a motor I, a rotating sleeve, and an air collecting ring. The air intake pipe I is fixed to the upper part of the air supply pipe I, and the lower part of the air intake pipe II is inserted into the air intake pipe I. The air intake pipe I and air intake pipe II are rotatably connected. The U-shaped plate is fixed to the air intake pipe I, and a protective cover is fixed to the outside of the U-shaped plate. The motor I is installed on one side of the U-shaped plate. The output end of the motor I is equipped with a helical gear II. The lower part of the helical gear II meshes with helical gear I, and the upper part of the helical gear II meshes with helical gear III. Helical gears I, II, and III are all rotatably connected to the U-shaped plate. Helical gear I is mounted on the air intake pipe II and fixedly connected to it. Helical gear III is mounted on the rotating sleeve and fixedly connected to it. The rotating sleeve is rotatably connected to the U-shaped plate and simultaneously sleeved on the air intake pipe II, rotatably connected to it. Two sets of air collecting rings are respectively located on the upper part of the rotating sleeve and the upper part of the air inlet pipe II. The air inlet pipe II is provided with air inlet I and air inlet II, which ensure that external gas can enter the air inlet pipe II through the air collecting rings. The air collecting ring includes a positioning ring, an air collecting pipe, and a filter cover. The air collecting pipe has three sets of equidistant circular fixed outside the positioning ring. The top of the air collecting pipe is provided with a filter cover, which filters out large particulate impurities in the air. Motor I drives helical gear II to rotate. Helical gear II simultaneously meshes with helical gear I and helical gear III, so that helical gear I and helical gear III rotate in opposite directions. Helical gear I drives the air inlet pipe II to rotate, and helical gear III drives the rotating sleeve to rotate. The two sets of air collecting rings on the air inlet pipe II and the rotating sleeve perform coaxial reverse rotation, expanding the air intake range and improving the air intake efficiency.

[0008] The switching mechanism includes an angle stepper motor, a drive shaft, a positioning plate I, an electric push rod, a limiting shaft I, and a circular slide groove. The angle stepper motor is mounted on the partition plate, and the output end of the angle stepper motor is provided with a drive shaft. The drive shaft passes through the partition plate and is rotatably connected to the partition plate. The positioning plate I has two sets fixed on the drive shaft, and an electric push rod is provided between the two sets of positioning plates I. The front end of the positioning plate I is provided with a limiting shaft I, which is also set in the circular slide groove and slidably connected to the circular slide groove. The circular slide groove is fixed on the partition plate.

[0009] The collecting tube includes a tube body, an air inlet III, a piston plate, a spring, a mounting plate, a radioactive aerosol filter membrane, an arc-shaped groove, and a locking plate. The air inlet III is located at the front end of the tube body. The positioning plate II is fixed inside the tube body. The limiting shaft II has multiple sets of parts that pass through the positioning plate II and are slidably connected to it. One end of the limiting shaft II has a limiting ring, and the other end has a piston plate. The spring is sleeved on the limiting shaft II and is located between the positioning plate II and the piston plate. The piston plate fits the air inlet III in size. The radioactive aerosol filter membrane is located in the mounting plate, which is located in a slot in the middle of the tube body. Two sets of arc-shaped grooves are fixed to the outside of the tube body. The locking plate is located between the two sets of arc-shaped grooves and is slidably connected to them. The locking plate is also in contact with the mounting plate. The locking plate ensures the mounting plate is properly installed, preventing it from detaching from the radioactive aerosol filter membrane during operation. An angle stepper motor controls the rotation of the drive shaft, which in turn rotates the positioning plate I. The positioning plate I then rotates the electric push rod. When the push rod's ejected end is coaxial with the inlet III of the collection tube, the push rod ejects, pushing the piston plate backward, opening inlet III and allowing gas to enter the collection tube. The radioactive aerosol filter membrane collects radioactive particles from the gas passing through the collection tube. When the radioactive aerosol filter membrane needs to be inspected or replaced, the electric push rod retracts, and the spring pushes out the piston plate to close inlet III. The locking plate is then moved upward along the arc-shaped groove to remove the mounting plate and the radioactive aerosol filter membrane, completing the inspection or replacement work.

[0010] The advantages of this utility model compared with the prior art are as follows:

[0011] The motor I of the air intake mechanism drives the helical gear II to rotate. The helical gear II simultaneously meshes with the helical gear I and the helical gear III. The helical gear I drives the air intake pipe II to rotate, and the helical gear III drives the rotating sleeve to rotate. The two sets of gas collecting rings set on the air intake pipe II and the rotating sleeve perform coaxial reverse rotation, which significantly expands the dynamic air intake range, eliminates detection dead zones, and greatly improves the sampling efficiency and response speed of ambient gas by generating a coordinated disturbance airflow vortex.

[0012] The switching mechanism ensures the working status of the collection tube and can safely and quickly switch the collection tube that needs maintenance out of the workflow without affecting the continuity of monitoring work. This realizes equipment maintenance and continuous monitoring, solves the problem of monitoring data interruption caused by maintenance of traditional equipment, and ensures the integrity and reliability of data.

[0013] By using the mounting plate, radioactive aerosol filter membrane, and locking plate installed in the collection tube, when it is necessary to inspect and maintain the radioactive aerosol filter membrane, the locking plate is pushed upward along the arc-shaped slide groove, and the radioactive aerosol filter membrane is removed by the mounting plate. The operation process is simple and quick, shortening the maintenance time and process, and improving the maintainability of the equipment and the efficiency of maintenance and inspection. Attached Figure Description

[0014] Appendix Figure 1 This utility model discloses a schematic diagram of an automatic continuous monitoring station structure around a nuclear facility. Figure 1 ;

[0015] Appendix Figure 2 It is attached Figure 1 Schematic diagram of the middle air intake mechanism Figure 1 ;

[0016] Appendix Figure 3 It is attached Figure 1 Schematic diagram of the middle air intake mechanism Figure 2 ;

[0017] Appendix Figure 4 This utility model discloses a schematic diagram of an automatic continuous monitoring station structure around a nuclear facility. Figure 2 ;

[0018] Appendix Figure 5 This utility model discloses a schematic diagram of an automatic continuous monitoring station structure around a nuclear facility. Figure 3 ;

[0019] Appendix Figure 6 It is attached Figure 5 Schematic diagram of the switching mechanism;

[0020] Appendix Figure 7 It is attached Figure 5 Schematic diagram of the central collection pipe structure;

[0021] Appendix Figure 8 This is a schematic diagram illustrating the operational status of an automatic continuous monitoring station around a nuclear facility according to this utility model;

[0022] In the diagram: 11. Housing; 12. Gas pipe I; 13. Radiation monitoring device; 14. Air intake mechanism; 15. Support frame; 16. Wind speed sensor; 17. Wind direction sensor; 18. Air pump; 19. Gas pipe II; 20. Switching mechanism; 21. Collection pipe; 22. Air outlet; 23. Partition plate;

[0023] 101. Intake pipe I; 102. Intake pipe II; 103. U-shaped plate; 104. Helical gear I; 105. Helical gear II; 106. Helical gear III; 107. Motor I; 108. Rotating sleeve; 109. Air collecting ring; 110. Protective cover;

[0024] 1021. Air Inlet I; 1022. Air Inlet II;

[0025] 1091. Positioning ring; 1092. Gas collection pipe; 1093. Filter cover;

[0026] 201. Angle stepper motor; 202. Drive shaft; 203. Positioning plate I; 204. Electric actuator; 205. Limiting shaft I; 206. Circular slide groove;

[0027] 301. Tube body; 302. Air inlet III; 303. Piston plate; 304. Spring; 305. Limiting shaft II; 306. Positioning plate II; 307. Mounting plate; 308. Radioactive aerosol filter membrane; 309. Arc-shaped slide groove; 310. Locking plate. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the following is in conjunction with the appendix. Figure 1-8 The technical solution of this utility model will be further described in detail below.

[0029] An automated continuous monitoring station for the perimeter of a nuclear facility includes a housing 11, a gas supply pipe I 12, a radiation monitoring device 13, an air intake mechanism 14, a gas pump 18, a gas supply pipe II 19, a switching mechanism 20, a collection pipe 21, and an air outlet 22. The housing 11 is located at the lower part of the overall device. The side wall of the housing 11 has an inspection window. The interior of the housing 11 has two sets of partitions 23, dividing the interior into three chambers. Airtightness is maintained between the chambers. The switching mechanism 20 and the collection pipe 21 are both equipped with… Inside the housing 11, a switching mechanism 20 is located at the front end of the housing, and a collection pipe 21 is located in the middle of the housing. The switching mechanism 20 and the collection pipe 21 cooperate with each other. An air outlet 22 is located at the rear end of the housing 11. An air pump 18 is located at the upper end of the housing 11. The air pump 18 is connected to air supply pipe I 12 and air supply pipe II 19. Air supply pipe II 19 is located at the front end of the housing 11. A bracket 15 and a radiation monitoring device 13 are mounted on air supply pipe I 12. The radiation monitoring device 13 is a radiation detection scintillator. The device, model BC400, BC404, or BC408, is obtained through private customization or purchase. It is used to measure β activity or γ-rays and can perform preliminary nuclide identification. The signal is then converted into an electrical signal by a photodiode. The bracket 15 is equipped with a wind speed sensor 16 and a wind direction sensor 17. The upper end of the gas supply pipe I 12 is equipped with an air intake mechanism 14. The gas enters the gas supply pipe I 12 through the air intake mechanism 14. The radiation monitoring device 13 monitors the incoming gas in real time. The data collected by the wind speed sensor 16 and the wind direction sensor 17 are used to monitor the overall gas condition. The gas is then sent into the box 11 through the air pump 18 and the gas supply pipe II 19. The switching mechanism 20 ensures the working status of the collection pipe 21 and can maintain the collection pipe 21 without affecting the collection work, ensuring the continuity of the monitoring work. The collection pipe 21 collects the radioactive aerosols in the passing gas through the radioactive aerosol filter membrane 308. The gas is then discharged into the box 11 through the air outlet 22, completing the monitoring work.

[0030] The air intake mechanism 14 includes an air intake pipe I 101, an air intake pipe II 102, a U-shaped plate 103, a motor I 107, a rotating sleeve 108, and an air collecting ring 109. The air intake pipe I 101 is fixed to the upper part of the air supply pipe I 12, and the lower part of the air intake pipe II 102 is inserted into the air intake pipe I 101. The air intake pipe I 101 and the air intake pipe II 102 are rotatably connected. The U-shaped plate 103 is fixed to the air intake pipe I 101, and the protective cover 110 is fixed to the outside of the U-shaped plate 103. The motor I 107 is installed on one side of the U-shaped plate 103, and the output end of the motor I 107 is provided with a helical gear II. 105. Helical gear II 105 meshes with helical gear I 104 at its lower part and with helical gear III 106 at its upper part. Helical gears I 104, II 105, and III 106 are all rotatably connected to U-shaped plate 103. Helical gear I 104 is mounted on intake pipe II 102 and fixedly connected to it. Helical gear III 106 is mounted on rotating sleeve 108 and fixedly connected to it. Rotating sleeve 108 is rotatably connected to U-shaped plate 103 and simultaneously sleeved on intake pipe II 102. The gas collecting ring 109 is dynamically connected, with two sets respectively located on the upper part of the rotating sleeve 108 and the upper part of the air inlet pipe II 102. The air inlet pipe II 102 is provided with air inlet I 1021 and air inlet II 1022, which ensure that external gas can enter the air inlet pipe II 102 through the gas collecting ring 109. The gas collecting ring 109 includes a positioning ring 1091, a gas collecting pipe 1092, and a filter cover 1093. The gas collecting pipe 1092 is provided with three sets of equidistant circular fixed outside the positioning ring 1091, and the top of the gas collecting pipe 1092 is... A filter cover 1093 is provided to filter large particulate impurities in the air. Motor I 107 drives helical gear II 105 to rotate. Helical gear II 105 simultaneously meshes with helical gear I 104 and helical gear III 106, so that helical gear I 104 and helical gear III 106 rotate in opposite directions. Helical gear I 104 drives intake pipe II 102 to rotate, and helical gear III 106 drives rotating sleeve 108 to rotate. The two sets of air collecting rings 109 set on intake pipe II 102 and rotating sleeve 108 perform coaxial reverse rotation, expanding the intake range and improving intake efficiency.

[0031] The switching mechanism 20 includes an angle stepper motor 201, a drive shaft 202, a positioning plate I 203, an electric push rod 204, a limiting shaft I 205, and a circular slide groove 206. The angle stepper motor 201 is mounted on the partition 23. The output end of the angle stepper motor 201 is provided with a drive shaft 202. The drive shaft 202 passes through the partition 23 and is rotatably connected to the partition 23. The positioning plate I 203 has two sets fixed on the drive shaft 202. An electric push rod 204 is provided between the two sets of positioning plates I 203. The front end of the positioning plate I 203 is provided with a limiting shaft I 205. The limiting shaft I 205 is also set in the circular slide groove 206 and is slidably connected to the circular slide groove 206. The circular slide groove 206 is fixed on the partition 23.

[0032] The collecting pipe 21 includes a pipe body 301, an air inlet III 302, a piston plate 303, a spring 304, a mounting plate 307, a radioactive aerosol filter membrane 308, an arc-shaped slide groove 309, and a locking plate 310. The air inlet III 302 is located at the front end of the pipe body 301. The positioning plate II 306 is fixed inside the pipe body 301. The limiting shaft II 305 has multiple sets of sliding connections through the positioning plate II 306. One end of the limiting shaft II 305 is provided with a limiting ring, and the other end of the limiting shaft II 305 is provided with a limiting ring. A piston plate 303 is provided, and a spring 304 is sleeved on the limiting shaft II 305 and positioned between the positioning plate II 306 and the piston plate 303. The piston plate 303 fits snugly to the air inlet III 302. A radioactive aerosol filter membrane 308 is disposed in the mounting plate 307, which is located in a slot in the middle of the tube body 301. Two sets of arc-shaped sliding grooves 309 are fixed to the outside of the tube body 301. A locking plate 310 is disposed between the two sets of arc-shaped sliding grooves 309 and slidably connected to the arc-shaped sliding grooves 309. Simultaneously, the mounting plate 307 is attached to the locking plate 310 to ensure that the mounting plate 307 is installed in place and to prevent the mounting plate 307 from falling off from the radioactive aerosol filter membrane 308 during operation; the angle stepper motor 201 controls the rotation of the transmission shaft 202, which drives the positioning plate I 203 to rotate, and the positioning plate I 203 drives the electric push rod 204 to rotate. When the protruding end of the electric push rod 204 is coaxial with the air inlet III 302 of the collection pipe 21, the protruding end of the electric push rod 204 is pushed out, pushing the piston plate 303 backward. When the inlet Ⅲ302 is opened, gas enters the collection tube 21. The radioactive aerosol filter membrane 308 collects radioactive particles in the gas passing through the collection tube 21. When the radioactive aerosol filter membrane 308 needs to be inspected or replaced, the electric push rod 204 retracts, the spring 304 pushes out the piston plate 303 to close the inlet Ⅲ302, and then the locking plate 310 is pushed upward along the arc-shaped slide groove 309 to remove the mounting plate 307 and the radioactive aerosol filter membrane 308 to complete the inspection or replacement work.

[0033] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0034] In the description of this invention, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0035] In summary, the power systems, including but not limited to motors, angle stepper motors, electric actuators, and their respective transmission systems, are equipped with protective covers according to the actual installation location to prevent wear or damage to the power and transmission systems caused by the external environment, thereby ensuring the normal operation of the power and transmission systems.

[0036] In summary, the components, including but not limited to motors, angle stepper motors, electric actuators, radiation detectors, scintillators, and electronic or electrical components, are existing components that were custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art and are not within the scope of protection of this invention.

[0037] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An automatic continuous monitoring station around a nuclear facility, comprising a housing, a gas supply pipe I, a radiation monitoring device, a gas inlet mechanism, a gas pump, a gas supply pipe II, a switching mechanism, a collection pipe, and a gas outlet; characterized in that... The housing is located at the bottom of the overall device. The side wall of the housing has an inspection window. The housing has two sets of partitions, which divide the housing into three chambers. The chambers are airtight. The switching mechanism and the collection pipe are both located inside the housing. The switching mechanism is located at the front end of the housing, and the collection pipe is located in the middle of the housing. The switching mechanism and the collection pipe cooperate with each other. The air outlet is located at the rear end of the housing. The air pump is located at the upper end of the housing. The air pump is connected to air supply pipe I and air supply pipe II. Air supply pipe II is also located at the front end of the housing. The upper end of air supply pipe I has an air inlet mechanism. Air supply pipe I is equipped with a radiation monitoring device. The collection tube includes a tube body, an air inlet III, a piston plate, a spring, a mounting plate, a radioactive aerosol filter membrane, an arc-shaped groove, and a locking plate. The air inlet III is located at the front end of the tube body. The positioning plate II is fixed inside the tube body. The limiting shaft II has multiple sets of parts that pass through the positioning plate II and are slidably connected to it. One end of the limiting shaft II has a limiting ring, and the other end has a piston plate. The spring is sleeved on the limiting shaft II and is located between the positioning plate II and the piston plate. The piston plate fits the air inlet III in size. The radioactive aerosol filter membrane is located in the mounting plate, which is located in a slot in the middle of the tube body. Two sets of arc-shaped grooves are fixed to the outside of the tube body. The locking plate is located between the two sets of arc-shaped grooves and is slidably connected to them. The locking plate is also in contact with the mounting plate.

2. An automatic continuous monitoring station around a nuclear facility according to claim 1, characterized in that... The switching mechanism includes an angle stepper motor, a drive shaft, a positioning plate I, an electric push rod, a limiting shaft I, and a circular slide groove. The angle stepper motor is mounted on the partition plate, and the output end of the angle stepper motor is provided with a drive shaft. The drive shaft passes through the partition plate and is rotatably connected to the partition plate. The positioning plate I has two sets fixed on the drive shaft, and an electric push rod is provided between the two sets of positioning plates I. The front end of the positioning plate I is provided with a limiting shaft I, which is also set in the circular slide groove and slidably connected to the circular slide groove. The circular slide groove is fixed on the partition plate.

3. An automatic continuous monitoring station around a nuclear facility according to claim 1, characterized in that... The air intake mechanism includes an air intake pipe I, an air intake pipe II, a U-shaped plate, a motor I, a rotating sleeve, and an air collecting ring. The air intake pipe I is fixed to the upper part of the air supply pipe I, and the protective cover is fixed to the outside of the U-shaped plate. The lower part of the air intake pipe II is inserted into the air intake pipe I, and the air intake pipe I and the air intake pipe II are rotatably connected. The U-shaped plate is fixed on the air intake pipe I, and the motor I is installed on one side of the U-shaped plate. The output end of the motor I is provided with a helical gear II. The lower part of the helical gear II meshes with the helical gear I, and the upper part of the helical gear II meshes with the helical gear III. The helical gears I, II, and III are all rotatably connected to the U-shaped plate. The helical gear I is set on the air intake pipe II and fixedly connected to the air intake pipe II. The helical gear III is set on the rotating sleeve and fixedly connected to the rotating sleeve. The rotating sleeve is rotatably connected to the U-shaped plate and is simultaneously sleeved on the air intake pipe II and rotatably connected to the air intake pipe II. Two sets of air collecting rings are respectively set on the upper part of the rotating sleeve and the upper part of the air intake pipe II.

4. An automatic continuous monitoring station around a nuclear facility according to claim 1, characterized in that... The gas pipeline I is equipped with a bracket, and the bracket is equipped with a wind speed sensor and a wind direction sensor.

5. An automatic continuous monitoring station around a nuclear facility according to claim 3, characterized in that... The air intake pipe II is provided with air intake I and air intake II. Through air intake I and air intake II, it is ensured that external gas can enter the air intake pipe II through the air collecting ring. The gas collecting ring includes a positioning ring, a gas collecting pipe, and a filter cover. The gas collecting pipe has three sets of equidistant circular fixed outside the positioning ring, and the top of the gas collecting pipe is provided with a filter cover.

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