Salt mist solid particle concentration monitoring system for coastal environment

Abstract

The invention provides a salt mist solid particle concentration monitoring system for a coastal environment, which adopts a salt mist solid particle concentration monitoring device and an external processing system, and the device comprises a hard enclosure, and two valve assemblies, a self-adaptive jacking system and two monitoring mechanisms which are arranged in the hard enclosure, an air flow channel penetrating front and back is formed in the hard fence, the two air valve assemblies divide the air flow channel into three spaces in the longitudinal direction of the air flow channel, each air valve assembly comprises an air inlet mechanism and an air outlet mechanism, and when the air flow reaches the preset wind power level, the air flow opens the air inlet mechanism on the windward side and the air outlet mechanism on the windward side; the air flow enters the middle space to drive the self-adaptive jacking system, so that the self-adaptive jacking system closes the air outlet mechanism on the windward side, meanwhile, the air flow continues to advance and flows through the monitoring mechanism on the leeward side, and the salt mist solid particle concentration of the flowing air flow is monitored through the monitoring mechanism.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to a salt fog solid particle concentration monitoring system for a coastal environment. Background Art

[0002] With the increase of service life, reinforced concrete structures in coastal cities often exhibit phenomena such as steel bar corrosion and concrete cracking, resulting in a decline in durability. The main reason is that in the coastal environment, due to the influence of factors such as sea breeze and tide, the air contains a large amount of salts and solid particles, forming salt fog. These substances gradually penetrate into the concrete under the action of wind, inducing the corrosion of steel bars in the concrete, which in turn leads to the expansion, cracking, and loosening of the concrete volume. Therefore, establishing a salt fog solid particle concentration monitoring system for the coastal environment is of great significance for analyzing the safety status of reinforced concrete structures in coastal cities. The main corrosive component of salt fog is the chloride salt in the ocean - sodium chloride. Under the action of wave beating, tides, etc., a large amount of salts and solid particles in the air move towards the reinforced concrete structures in coastal cities and erode the passive oxide film on the surface of the steel bars, triggering steel bar corrosion, and then causing cracks in the concrete, reducing the structural durability.

[0003] At present, the research work of relevant domestic personnel mainly focuses on the research of concrete erosion. The common practice is to establish salt spray protection facilities to prevent salt spray from eroding reinforced concrete structures. For example, the domestic invention patent "A method for three-dimensional greening of coastal ecological protection windbreak forests with Ipomoea pes-caprae (CN118355840A)" adopts the method of using the native plant Ipomoea pes-caprae for three-dimensional greening of coastal ecological protection windbreak forests to improve the adaptability of building structures to salt spray environments; or in the work of preparing erosion-resistant concrete, the common practice is to add corrosion-resistant admixtures, and the secondary hydration of the admixtures fills the internal structural voids of the concrete. For example, the domestic invention patent "A high-performance corrosion-resistant concrete for coastal environments and its preparation method (CN202411565470.2)" adds a large amount of concrete corrosion-resistant admixtures during concrete preparation, and the secondary hydration of the concrete corrosion-resistant admixtures fills the internal structural voids of the concrete, thereby improving the impermeability and chloride ion permeability of the concrete. The domestic invention patent "A high-durability inorganic steel rust inhibitor coating material for salt lake environments and its construction process (CN202410955365.3)" improves the anti-rust performance of the structure by adding a rust inhibitor coating on the surface of the steel bars. The idea of improving concrete erosion resistance from the perspective of changing raw materials does not involve revealing the analysis of chloride ion content, and it cannot adapt in time when the chloride ion content inside and outside the concrete changes, and can only meet the use requirements under specific working conditions. The above patent ideas mainly focus on taking measures to deal with salt spray erosion from the structure itself. The premise of these measures is to have a judgment on whether salt spray will affect the building structure, and to be able to intelligently monitor different salt spray particle concentrations in the face of different wind levels, so as to provide data assistance for designers. Summary of the Invention

[0004] The present invention aims to provide a salt spray solid particle concentration monitoring system for coastal environments, which can real-time monitor the concentration of salt spray solid particles in the environment, and is of great significance for evaluating the corrosion resistance of reinforced concrete structures in coastal cities, formulating protection measures, and ensuring the safe operation of facilities.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: A salt spray solid particle concentration monitoring system for a coastal environment, comprising a salt spray solid particle concentration monitoring device and an external processing system. The salt spray solid particle concentration monitoring device includes a rigid enclosure, and two valve assemblies, an adaptive tightening system, and two monitoring mechanisms arranged inside the rigid enclosure. The monitoring mechanisms are communicatively connected to the external processing system. The rigid enclosure is horizontally arranged, and there is an air flow channel running through from front to back inside the rigid enclosure. The two valve assemblies divide the air flow channel into three spaces along the longitudinal direction of the air flow channel. The three spaces include a middle space and outer spaces on both sides of the middle space. The adaptive tightening system is arranged in the middle space and at the middle of the bottom plate of the rigid enclosure. Each valve assembly includes a one-way air intake mechanism and a two-way air outlet mechanism. The air intake mechanism can only introduce the air flow in the outer space into the middle space. The upper end of the air intake mechanism is installed on the top plate of the rigid enclosure, and the lower end of the air outlet mechanism is installed on the bottom plate of the rigid enclosure. The air intake mechanism and the air outlet mechanism are arranged vertically corresponding to each other. When the air intake mechanisms and the air outlet mechanisms of the two valve assemblies are both in the closed state, the lower end of the air intake mechanism and the upper end of the corresponding air outlet mechanism can abut against each other, making the middle space a closed space. The two monitoring mechanisms are respectively arranged outside the air outlet mechanisms of the corresponding valve assemblies. The opening resistance of the air intake mechanism and the air outlet mechanism is the same. When the air flow reaches a predetermined wind force level, the air flow can open the air intake mechanism and the air outlet mechanism on the windward side, enter the middle space, drive the adaptive tightening system, so that the adaptive tightening system closes the air outlet mechanism on the windward side. At the same time, the air flow continues to move forward, flows through the monitoring mechanism on the leeward side, and the monitoring mechanism can collect the salt spray solid particles in the air flow flowing through the monitoring mechanism. The external processing system uses the salt spray solid particles collected by the monitoring mechanism to judge the salt spray solid particle concentration in the coastal environment.

[0006] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environment, the monitoring mechanism includes a monitoring chamber and a water tank. The water tank is arranged in the monitoring chamber. A weight sensor is arranged between the bottom of the water tank and the bottom plate of the rigid enclosure. The weight sensor is connected to an external processing system by wire or wirelessly. The water tank contains liquid pure water. A horizontal partition is arranged above the water tank at a distance. One end of the horizontal partition is arranged on the outer side where the lower end of the air inlet mechanism abuts against the upper end of the air outlet mechanism and can abut against both the lower end of the air inlet mechanism and the upper end of the air outlet mechanism at the same time. The other end of the horizontal partition is connected to the upper end of the side wall of the water tank far away from the adaptive tightening system through the vertical filter plate. The monitoring chamber is enclosed by the air outlet mechanism, the horizontal partition, the vertical filter plate, the side wall of the water tank far away from the adaptive tightening system and the rigid enclosure. The air flow entering the monitoring mechanism flows out of the monitoring mechanism through the vertical filter plate. The salt spray solid particles in the air flow flowing through the vertical filter plate are blocked by the vertical filter plate and fall into the liquid pure water in the water tank. The weight change of the liquid pure water is monitored by the weight sensor to obtain the weight change of the salt spray solid particles in the liquid pure water.

[0007] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environment, the adaptive tightening system includes a bracket, a plurality of pneumatic plates, an upper horizontal support member, a reverse transmission mechanism and a lower horizontal support member. The plurality of pneumatic plates are fixedly arranged on the upper horizontal support member at equal intervals. Both the upper horizontal support member and the lower horizontal support member are arranged horizontally. The pneumatic plates are arranged vertically and are perpendicular to the longitudinal direction of the rigid enclosure. The bracket includes two vertical support plates and a horizontal support portion. Each vertical support plate extends along the transverse direction of the rigid enclosure. A through hole for the lower horizontal support member to pass through is formed on each vertical support plate. The widths of both the upper horizontal support member and the lower horizontal support member are smaller than the width of the vertical support plate. The lower ends of the two vertical support plates are arranged on the bottom plate of the rigid enclosure at intervals. The upper ends of the two vertical support plates are respectively vertically connected to both ends of the horizontal support portion. The reverse transmission mechanism is arranged on the horizontal support portion of the bracket. The upper horizontal support member is arranged above the reverse transmission mechanism. The lower horizontal support member is arranged parallel to the horizontal support portion below. When the air flow enters the middle space, the air flow pushes the pneumatic plates to move, thereby driving the upper horizontal support member to move. The upper horizontal support member drives the lower horizontal support member to move in the opposite direction through the reverse transmission mechanism, so that the air outlet mechanism on the windward side is in a closed state.

[0008] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environment, the heights of the two pneumatic plates in the middle of the upper horizontal support member are the highest, and the heights of the plurality of pneumatic plates gradually decrease from the center of the upper horizontal support member to both sides.

[0009] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environments, the upper horizontal support member is an upper top plate, the lower horizontal support member is a lower top plate, the reverse transmission mechanism includes a number of hollow rollers and two elastic cables. The horizontal support portion is provided with elongated through holes for the number of hollow rollers to pass through. The hollow rollers are respectively installed on the horizontal support portion. The lower top plate is arranged parallel to the lower side of the horizontal support portion, and both ends of the lower top plate are connected to both ends of the horizontal support portion through corresponding elastic cables. The number of hollow rollers are sequentially arranged on the lower top plate, and the upper top plate is arranged on the number of hollow rollers. When air flow enters the intermediate space, the air flow pushes the pneumatic plate to move, thereby driving the upper top plate to move. The movement of the upper top plate drives the hollow rollers to rotate, and the rotation of the hollow rollers drives the lower top plate to move in the opposite direction, so that the air outlet mechanism on the windward side is in a closed state.

[0010] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environments, the upper horizontal support member is an upper rack, the lower horizontal support member is a lower rack, the reverse transmission mechanism includes a number of two gears and two elastic cables. The two gears are respectively installed on the horizontal support portion. The horizontal support portion is provided with through holes for accommodating the gears, and both ends of the lower rack are connected to both ends of the horizontal support portion through corresponding elastic cables. The lower rack and the upper rack are respectively located on the upper and lower sides of the gears, and both gears mesh with the upper rack and the lower rack. When air flow enters the intermediate space, the air flow pushes the pneumatic plate to move, thereby driving the upper rack to move. The movement of the upper rack drives the gears to rotate, and the rotation of the gears drives the lower rack to move in the opposite direction, so that the air outlet mechanism on the windward side is in a closed state.

[0011] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environments, the adaptive tightening system further includes a gear drive motor and two infrared laser timers. The gear drive motor and the two infrared laser timers are respectively connected to an external processing system. The infrared laser timers are respectively arranged in the middle space. Through the infrared laser timers, it is possible to monitor whether the corresponding monitoring mechanism is turned on. When the air inlet mechanism on the windward side is opened by the air flow, the infrared laser timer sends the information that the air inlet mechanism on the windward side is opened by the air flow to the external processing system. After receiving the information, the external processing system notifies the gear drive motor to work. The gear drive motor drives the gear to rotate, and the gear drives the lower rack to move towards the air outlet mechanism on the windward side to close the air outlet mechanism on the windward side.

[0012] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environments, the upper horizontal support member is an upper top plate, the lower horizontal support member is a lower top plate, the reverse transmission mechanism includes a number of two transmission wheels and a transmission belt. The two transmission wheels are respectively installed on the horizontal support portion, the transmission belt is installed on the two transmission wheels, and a through hole for accommodating the reverse transmission mechanism is provided on the horizontal support portion. The upper top plate is fixedly connected to the upper center of the transmission belt through a connecting member, and the lower top plate is fixedly connected to the lower center of the transmission belt through a connecting member. When the airflow enters the intermediate space, the airflow pushes the pneumatic plate to move, thereby driving the upper top plate to move. The movement of the upper top plate drives the transmission belt to move, thereby driving the lower top plate to move in the opposite direction, so that the air outlet mechanism on the windward side is in a closed state.

[0013] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environments, the air intake mechanism includes an air intake fixed seat, an air intake arc-shaped end plate, an air intake movable door plate, and an air intake check valve plate. The air intake fixed seat and the air intake movable door plate are both arranged along the transverse length of the rigid enclosure. The air intake fixed seat is an air intake semi-circular groove body with an upward opening. The two ends of the top of the air intake semi-circular groove body are respectively fixedly connected to the top plate of the rigid enclosure. A through hole is provided at the bottom of the air intake semi-circular groove body. The air intake arc-shaped end plate is located in the groove of the air intake semi-circular groove body. The outer surface of the air intake arc-shaped end plate matches and adheres to the inner surface of the air intake semi-circular groove body. The upper end of the air intake movable door plate passes through the through hole at the bottom of the air intake semi-circular groove body and is vertically connected to the middle of the convex surface of the air intake arc-shaped end plate. The air intake check valve plate is fixedly arranged in the air intake fixed seat. The air intake check valve plate is located outside the end of the air intake arc-shaped end plate away from the middle space. The air intake check valve plate can limit the rotation of the air intake movable door plate in the direction away from the middle space.

[0014] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environment, the air outlet mechanism includes an air outlet fixed seat, an air outlet arc-shaped end plate, an air outlet movable door plate and an air outlet top plate. The air outlet fixed seat and the air outlet movable door plate are both arranged along the transverse length of the rigid enclosure. The air outlet fixed seat is an air outlet semi-circular groove body with an opening downward. The two ends of the bottom of the air outlet semi-circular groove body are respectively fixedly connected to the bottom plate of the rigid enclosure. A through hole is opened at the top of the air outlet semi-circular groove body. The air outlet arc-shaped end plate is located in the groove of the air outlet semi-circular groove body. The outer surface of the air outlet arc-shaped end plate matches and adheres to the inner surface of the air outlet semi-circular groove body. The upper end of the air outlet movable door plate passes through the through hole at the bottom of the air outlet semi-circular groove body and is vertically connected to the middle part of the convex surface of the air outlet arc-shaped end plate. The air outlet top plate is vertically and fixedly arranged in the middle of the air outlet fixed seat. The lower end of the air outlet top plate is fixedly connected to the bottom plate of the rigid enclosure. The air outlet top plate and the air outlet movable door plate in the closed state are in the same plane. A horizontally arranged cylinder is provided at the top of the air outlet top plate. The concave surface of the air outlet arc-shaped end plate is supported by the air outlet top plate and the air outlet arc-shaped end plate can freely rotate around the cylinder at the top of the air outlet top plate.

[0015] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environment, it further includes two anemometers and two infrared laser timers. The two anemometers and two infrared laser timers are respectively in communication connection with an external processing system. The anemometers are respectively arranged in the corresponding outer spaces and are spaced above the corresponding monitoring mechanisms. The anemometers are respectively installed on the rigid enclosure. The infrared laser timers are respectively arranged in the middle spaces. Through the infrared laser timers, it can be monitored whether the corresponding monitoring mechanism is opened, the opening and closing time points of the corresponding air inlet mechanism can be recorded, and timing starts when the corresponding air inlet mechanism is opened and stops when the corresponding air inlet mechanism is closed.

[0016] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environment, the salt fog solid particle concentration is obtained by the following method: When the air inlet mechanism is opened by the wind, the corresponding infrared laser timer starts timing. The opening moment of the air inlet mechanism is recorded as t0, and the weight m0 of the liquid pure water when the air inlet mechanism is opened is measured by the weight sensor; When the air inlet mechanism is closed, the corresponding infrared laser timer stops timing. The closing moment of the air inlet mechanism is recorded as t1; the weight m1 of the liquid pure water when the air inlet mechanism is closed is measured by the weight sensor; The wind speed is measured in real time by the anemometer, and the average wind speed v during the period from the opening to the closing of the air inlet mechanism is obtained. Calculate the wind flow rate Q, where Q = dhv. Here, d is the width of the rigid enclosure, and h is the distance from the top of the monitoring mechanism to the top plate of the rigid enclosure; Calculate the total volume of air passing through the salt mist solid particle concentration monitoring device during the opening to closing of the air intake mechanism, denoted as V. V = Q(t1 - t0); Calculate the salt mist solid particle concentration W, where W = (m1 - m0) / V. The unit of the salt mist solid particle concentration W is g / L.

[0017] Preferably, in the above salt mist solid particle concentration monitoring system for a coastal environment, the salt mist solid particle concentration is obtained by the following method: monitor the weight change of liquid pure water every day through the monitoring mechanism to obtain the weight change amount of salt mist solid particles every day, and use the weight change amount of salt mist solid particles measured every day as the salt mist solid particle concentration in the air, with the unit of grams per day.

[0018] It can be seen from the above disclosed technical solutions that, compared with the prior art, the beneficial effects of the present invention are as follows: In summary, the present invention provides a salt fog solid particle concentration monitoring system for a coastal environment, including a salt fog solid particle concentration monitoring device and an external processing system. The salt fog solid particle concentration monitoring device includes a rigid enclosure, and two valve assemblies, an adaptive tightening system, and two monitoring mechanisms disposed inside the rigid enclosure. The monitoring mechanisms are communicatively connected to the external processing system. The rigid enclosure is horizontally arranged, and there is an air flow channel penetrating through the front and back inside the rigid enclosure. The two valve assemblies divide the air flow channel into three spaces along the longitudinal direction of the air flow channel. The three spaces include a middle space and outer spaces on both sides of the middle space. The adaptive tightening system is disposed in the middle space and at the middle of the bottom plate of the rigid enclosure. Each valve assembly includes a unidirectional air intake mechanism and a bidirectional air outlet mechanism. The air intake mechanism can only introduce the air flow in the outer space into the middle space. The upper end of the air intake mechanism is installed on the top plate of the rigid enclosure, and the lower end of the air outlet mechanism is installed on the bottom plate of the rigid enclosure. The air intake mechanism and the air outlet mechanism are arranged in an up-and-down corresponding manner. When the air intake mechanisms and the air outlet mechanisms of the two valve assemblies are both in the closed state, the lower end of the air intake mechanism and the upper end of the corresponding air outlet mechanism can abut against each other, so that the middle space becomes a closed space. The two monitoring mechanisms are respectively disposed outside the air outlet mechanisms of the corresponding valve assemblies. The opening resistance of the air intake mechanism and the air outlet mechanism is the same. When the air flow reaches a predetermined wind force level, the air flow can open the air intake mechanism and the air outlet mechanism on the windward side, enter the middle space, drive the adaptive tightening system, so that the adaptive tightening system closes the air outlet mechanism on the windward side. At the same time, the air flow continues to move forward, flows through the monitoring mechanism on the leeward side, and the monitoring mechanism can collect the salt fog solid particles in the air flow flowing through the monitoring mechanism. The external processing system uses the salt fog solid particles collected by the monitoring mechanism to judge the salt fog solid particle concentration in the coastal environment. Once the salt fog solid particle concentration exceeds the standard, the reinforced concrete structure can be protected in time, and the risk of salt fog erosion of the reinforced concrete structure can be reduced, which is of great significance for evaluating the corrosion resistance of reinforced concrete structures in coastal cities, formulating protection measures, and ensuring the safe operation of facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a schematic structural diagram of Embodiment 1 of a salt fog solid particle concentration monitoring system for a coastal environment.

[0020] Figure 2 FIG. 7 is a schematic structural diagram of the adaptive tightening system in Embodiment 1 when not affected by the wind.

[0021] Figure 3 FIG. Figure 2 is a side view of FIG.

[0022] Figure 4 FIG. 8 is a schematic structural diagram of the adaptive tightening system in Embodiment 1 when affected by the wind.

[0023] Figure 5 It is a schematic structural diagram of the monitoring mechanism.

[0024] Figure 6 It is a schematic structural diagram of Embodiment 2 of a salt spray solid particle concentration monitoring system for a coastal environment according to the present invention.

[0025] Figure 7 It is a schematic structural diagram when the wind enters the external space on the windward side in Embodiment 2 of a salt spray solid particle concentration monitoring system for a coastal environment.

[0026] Figure 8 It is a schematic structural diagram when the wind enters the middle space in Embodiment 2 of a salt spray solid particle concentration monitoring system for a coastal environment.

[0027] Figure 9 It is a schematic structural diagram when the wind enters the middle space and drives the adaptive top-tightening system to act in Embodiment 2 of a salt spray solid particle concentration monitoring system for a coastal environment.

[0028] Figure 10 It is a schematic structural diagram when the wind enters the monitoring mechanism on the leeward side in Embodiment 2 of a salt spray solid particle concentration monitoring system for a coastal environment.

[0029] Figure 11 It is a schematic structural diagram when the wind flows out of the monitoring mechanism through the vertical filter plate in Embodiment 2 of a salt spray solid particle concentration monitoring system for a coastal environment.

[0030] Figure 12 It is a schematic structural diagram when the wind stops in Embodiment 2 of a salt spray solid particle concentration monitoring system for a coastal environment.

[0031] Figure 13 It is a schematic structural diagram of Embodiment 3 of a salt spray solid particle concentration monitoring system for a coastal environment.

[0032] Figure 14 It is a schematic structural diagram when the adaptive top-tightening system is not affected by the wind in Embodiment 3.

[0033] Figure 15 It is Figure 14 a side view of.

[0034] Figure 16 It is a schematic structural diagram when the adaptive top-tightening system is affected by the wind in Embodiment 3.

[0035] Figure 17 It is a schematic structural diagram when the adaptive top-tightening system is not affected by the wind in Embodiment 4.

[0036] Figure 18 It is a schematic structural diagram of the adaptive tightening system in Embodiment 4 when affected by wind.

[0037] In the figure: 1 - rigid enclosure, 2 - adaptive tightening system, 21 - bracket, 211 - vertical support plate, 212 - horizontal support part, 22 - pneumatic plate, 23 - upper horizontal support member, 24 - hollow roller, 24' - gear, 24'' - driving wheel, 25 - lower horizontal support member, 26 - elastic cable, 26'' - transmission belt, 27'' - connecting member, 3 - monitoring mechanism, 31 - monitoring chamber, 32 - water tank, 33 - weight sensor, 34 - liquid pure water, 35 - horizontal partition, 36 - vertical filter plate, 4 - air intake mechanism, 41 - air intake fixing seat, 42 - air intake arc-shaped end plate, 43 - air intake movable door plate, 44 - air intake check valve plate, 5 - air outlet mechanism, 51 - air outlet fixing seat, 52 - air outlet arc-shaped end plate, 53 - air outlet movable door plate, 54 - air outlet top plate, 6 - infrared laser timer, 7 - anemometer. Specific Embodiment

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The technical content and features of the present invention will be described in detail below by way of the listed embodiments in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present invention. For the sake of convenience of description, the "upper" and "lower" mentioned below are in the same direction as the upper and lower of the accompanying drawings, but this cannot be a limitation to the technical solution of the present invention.

[0039] Embodiment 1

[0040] Please refer to Figures 1 to 5, this embodiment provides a salt fog solid particle concentration monitoring system for a coastal environment, including a salt fog solid particle concentration monitoring device and an external processing system (not shown). The salt fog solid particle concentration monitoring device includes a rigid enclosure 1 and two valve components, an adaptive tightening system 2, and two monitoring mechanisms 3 disposed inside the rigid enclosure 1. The monitoring mechanisms 3 are communicatively connected to the external processing system. The rigid enclosure 1 is horizontally arranged, and the inside of the rigid enclosure 1 has an air flow channel that penetrates from front to back. The two valve components divide the air flow channel into three spaces along the longitudinal direction of the air flow channel. The three spaces include a middle space and outer spaces on both sides of the middle space. The adaptive tightening system 2 is disposed in the middle space and at the middle of the bottom plate of the rigid enclosure 1. Each valve component includes a unidirectional air intake mechanism 4 and a bidirectional air outlet mechanism 5. The air intake mechanism 4 can only introduce the air flow in the outer space into the middle space. The upper end of the air intake mechanism 4 is installed on the top plate of the rigid enclosure 1, and the lower end of the air outlet mechanism 5 is installed on the bottom plate of the rigid enclosure 1. The air intake mechanism 4 and the air outlet mechanism 5 are arranged vertically corresponding to each other. When both the air intake mechanisms 4 and the air outlet mechanisms 5 of the two valve components are in the closed state, the lower end of the air intake mechanism 4 and the upper end of the corresponding air outlet mechanism 5 can abut against each other, making the middle space a closed space. The two monitoring mechanisms 3 are respectively disposed outside the air outlet mechanisms 5 of the corresponding valve components. The opening resistance of the air intake mechanism 4 and the air outlet mechanism 5 is the same. When the air flow reaches a predetermined wind force level, the air flow can open the air intake mechanism 4 and the air outlet mechanism 5 on the windward side, enter the middle space, drive the adaptive tightening system 2, so that the adaptive tightening system 2 closes the air outlet mechanism 5 on the windward side. At the same time, the air flow continues to move forward, flows through the monitoring mechanism 3 on the leeward side. The monitoring mechanism 3 can collect the salt fog solid particles in the air flow flowing through the monitoring mechanism 3. The external processing system judges the salt fog solid particle concentration in the coastal environment by using the salt fog solid particles collected by the monitoring mechanism 3. Once the salt fog solid particle concentration exceeds the standard, the reinforced concrete structure can be protected in time, and the risk of salt fog eroding the reinforced concrete structure can be reduced, which is of great significance for evaluating the corrosion resistance of reinforced concrete structures in coastal cities, formulating protection measures, and ensuring the safe operation of facilities.

[0041] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environments, the monitoring mechanism 3 includes a monitoring chamber 31 and a water tank 32. The water tank 32 is arranged inside the monitoring chamber 31. A weight sensor 33 is provided between the bottom of the water tank 32 and the bottom plate of the rigid enclosure 1. The weight sensor 33 is connected to an external processing system by wired or wireless means. Inside the water tank 32 is liquid pure water 34. A horizontal partition 35 is arranged above the water tank 32 at a distance. One end of the horizontal partition 35 is arranged on the outer side where the lower end of the air inlet mechanism 4 abuts against the upper end of the air outlet mechanism 5 and can abut against both the lower end of the air inlet mechanism 4 and the upper end of the air outlet mechanism 5 at the same time. The other end of the horizontal partition 35 is connected to the upper end of the side wall of the water tank 32 far away from the adaptive tightening system 2 through the vertical filter plate 36. The monitoring chamber 31 is enclosed by the air outlet mechanism 5, the horizontal partition 35, the vertical filter plate 36, the side wall of the water tank 32 far away from the adaptive tightening system 2, and the rigid enclosure 1. The air flow entering the monitoring mechanism 3 flows out of the monitoring mechanism 3 through the vertical filter plate 36. The salt fog solid particles in the air flow flowing through the vertical filter plate 36 are blocked by the vertical filter plate 36 and fall into the liquid pure water 34 in the water tank 32. By monitoring the weight change of the liquid pure water 34 by the weight sensor 33, the weight change of the salt fog solid particles in the liquid pure water 34 is obtained.

[0042] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environments, the vertical filter plate 36 is made of a stainless steel filter plate. The vertical filter plate 36 made of a stainless steel filter plate is resistant to corrosion by chloride ions, sulfides, etc., is suitable for high-salt or strongly corrosive environments, has a smooth surface, and can, to a certain extent, prevent salt fog solid particles from adhering to the vertical filter plate 36, improving the accuracy of salt fog solid particle concentration monitoring.

[0043] Preferably, in the above salt fog solid particle concentration monitoring system for coastal environments, a vibrator (not shown) is provided on the vertical filter plate 36. By vibrating, the remaining salt fog solid particles on the vertical filter plate can fall into the lower water tank 32, further improving the accuracy of salt fog solid particle concentration monitoring.

[0044] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environments, the adaptive tightening system 2 includes a bracket 21, a plurality of pneumatic plates 22, an upper horizontal support member 23, a reverse transmission mechanism, and a lower horizontal support member 25. The plurality of pneumatic plates 22 are fixedly arranged at equal intervals on the upper horizontal support member 23. The upper horizontal support member 23 and the lower horizontal support member 25 are both horizontally arranged. The pneumatic plates 22 are vertically arranged and perpendicular to the longitudinal direction of the rigid enclosure 1. The bracket 21 includes two vertical support plates 211 and a horizontal support portion 212. Each vertical support plate 211 extends along the transverse direction of the rigid enclosure 1. A through hole for the lower horizontal support member 25 to pass through is formed on each vertical support plate 211. The widths of the upper horizontal support member 23 and the lower horizontal support member 25 are both smaller than the width of the vertical support plate 211. The lower ends of the two vertical support plates 211 are spaced apart on the bottom plate of the rigid enclosure 1. The upper ends of the two vertical support plates 211 are respectively perpendicularly connected to both ends of the horizontal support portion 212. The reverse transmission mechanism is arranged on the horizontal support portion 212 of the bracket 21. The upper horizontal support member 23 is arranged above the reverse transmission mechanism. The lower horizontal support member 25 is arranged in parallel below the horizontal support portion 212. When air flow enters the intermediate space, the air flow pushes the pneumatic plates 22 to move, thereby driving the upper horizontal support member 23 to move. The upper horizontal support member 23 drives the lower horizontal support member 25 to move in the reverse direction through the reverse transmission mechanism, so that the air outlet mechanism 5 on the windward side is in a closed state.

[0045] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environments, the heights of the two pneumatic plates 22 located in the middle of the upper horizontal support member 23 are the highest, and the heights of the plurality of pneumatic plates 22 gradually decrease from the center of the upper horizontal support member 23 to both sides to facilitate the air flow to push the pneumatic plates 22 to move.

[0046] In this embodiment, the upper horizontal support member 23 is an upper top plate, the lower horizontal support member 25 is a lower top plate, the reverse transmission mechanism includes a plurality of hollow rollers 24 and two elastic cables 26. A long through hole for the plurality of hollow rollers 24 to pass through is formed in the horizontal support portion 212. The hollow rollers 24 are respectively installed on the horizontal support portion 212. The lower top plate is arranged parallel to the lower part of the horizontal support portion, and both ends of the lower top plate are connected to both ends of the horizontal support portion 212 through corresponding elastic cables 26. The plurality of hollow rollers 24 are sequentially arranged on the lower top plate, and the upper top plate is arranged on the plurality of hollow rollers 24. When air flow enters the intermediate space, the air flow pushes the pneumatic plate 22 to move, thereby driving the upper top plate to move. The movement of the upper top plate drives the hollow rollers 24 to rotate, and the rotation of the hollow rollers 24 drives the lower top plate to move in the opposite direction, so that the air outlet mechanism 5 on the windward side is in a closed state. Since the salt spray solid particles in the air flow entering the middle space through the air outlet mechanism 5 on the windward side will be filtered out by the vertical filter plate 36 of the monitoring mechanism 3 on the windward side, which will reduce the accuracy of the measurement of the salt spray solid particle concentration. Therefore, by setting the adaptive tightening system 2, the air outlet mechanism 5 on the windward side can be closed, thereby improving the accuracy of the salt spray solid particle concentration.

[0047] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environments, all the hollow rollers 24 are respectively installed on the horizontal support portion 212 through a connecting mechanism. The connecting mechanism includes two connecting plates (not shown) and a central shaft (not shown). Central holes for the central shaft to pass through are respectively formed in the hollow rollers 24. The hollow rollers 24 are respectively sleeved on the corresponding central shafts. Both ends of the central shaft are respectively fixedly connected to one end of the corresponding connecting plate, and the other ends of the corresponding connecting plates are respectively fixedly connected to the horizontal support portion 212. The hollow rollers 24 can respectively rotate freely relative to the corresponding central shafts.

[0048] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environments, the air intake mechanism 4 includes an air intake fixing base 41, an air intake arc-shaped end plate 42, an air intake movable door plate 43, and an air intake check valve plate 44. The air intake fixing base 41 and the air intake movable door plate 43 are both arranged longitudinally along the width of the rigid enclosure 1. The air intake fixing base 41 is an air intake semi-circular groove body with an upward opening. The two ends of the top of the air intake semi-circular groove body are respectively fixedly connected to the top plate of the rigid enclosure 1. A through hole is provided at the bottom of the air intake semi-circular groove body. The air intake arc-shaped end plate 42 is located in the groove of the air intake semi-circular groove body. The outer surface of the air intake arc-shaped end plate 42 matches and adheres to the inner surface of the air intake semi-circular groove body. The upper end of the air intake movable door plate 43 passes through the through hole at the bottom of the air intake semi-circular groove body and is vertically connected to the middle part of the convex surface of the air intake arc-shaped end plate 42. The air intake check valve plate 44 is fixedly arranged in the air intake fixing base 41. The air intake check valve plate 44 is located outside the end of the air intake arc-shaped end plate 42 that is far from the middle space. The air intake check valve plate 44 can limit the rotation of the air intake movable door plate 43 in the direction away from the middle space. When the airflow does not reach the wind level capable of opening the air intake mechanism 4 on the windward side, the air intake mechanism 4 is in a closed state. At this time, the air intake movable door plate 43 presents a vertical state.

[0049] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environment, the air outlet mechanism 5 includes an air outlet fixed seat 51, an air outlet arc-shaped end plate 52, an air outlet movable door plate 53 and an air outlet top plate 54. The air outlet fixed seat 51 and the air outlet movable door plate 53 are both arranged along the transverse length of the rigid enclosure 1. The air outlet fixed seat 51 is an air outlet semi-circular groove body with an opening downward. The two ends of the bottom of the air outlet semi-circular groove body are respectively fixedly connected to the bottom plate of the rigid enclosure 1. A through hole is opened at the top of the air outlet semi-circular groove body. The air outlet arc-shaped end plate 52 is located in the groove of the air outlet semi-circular groove body. The outer surface of the air outlet arc-shaped end plate 52 matches and adheres to the inner surface of the air outlet semi-circular groove body. The upper end of the air outlet movable door plate 53 passes through the through hole at the bottom of the air outlet semi-circular groove body and is vertically connected to the middle part of the convex surface of the air outlet arc-shaped end plate 52. The air outlet top plate 54 is vertically and fixedly arranged in the middle of the air outlet fixed seat 51. The lower end of the air outlet top plate 54 is fixedly connected to the bottom plate of the rigid enclosure 1. The air outlet top plate 54 and the air outlet movable door plate 53 in the closed state are in the same plane. A horizontally arranged cylinder is provided at the top of the air outlet top plate 54. The concave surface of the air outlet arc-shaped end plate 52 is supported by the air outlet top plate 54 and the air outlet arc-shaped end plate 52 can freely rotate around the cylinder at the top of the air outlet top plate 54. When the air flow does not reach the wind level capable of opening the air outlet mechanism 5 on the windward side, the air outlet mechanism 5 is in the closed state. At this time, the air outlet movable door plate 53 presents a vertical state, and the upper end of the air outlet movable door plate 53 can abut against the lower end of the corresponding air inlet movable door plate 43, making the middle space a closed space.

[0050] Preferably, in the above salt spray solid particle concentration monitoring system for coastal environment, the salt spray solid particle concentration in the coastal environment can be simply obtained by the following method: By monitoring the weight change of the daily liquid pure water 34 by the monitoring mechanism 3, the weight change amount of the daily salt spray solid particles can be obtained, and the weight change amount of the daily measured salt spray solid particles is used as the air salt spray solid particle concentration, and the unit is recorded as grams per day. By monitoring the weight change of the daily salt spray solid particles, the concentration change of the salt spray solid particles in the coastal environment can be known. The specific method can be as follows: (1) At 0 o'clock, record the weight m of the liquid pure water 34 monitored by the weight sensor 33 a ; (2) At 24 o'clock (that is, after 24 hours), record the weight m of the liquid pure water 34 monitored by the weight sensor 33 b ; (3) Calculate the weight m of the salt spray solid particles in one day as m = m a - m b ; (4) Calculate the salt spray particle concentration W = m / day (g / day); The concentration here is not the concentration in the traditional sense. The concentration here represents the weight of salt spray solid particles within 1 day. After continuously monitoring for 30 days, there are 30 data, namely: , by calculating the average and median to describe the central tendency of the weight of salt spray solid particles every day during this period, which provides important reference and help for the corrosion resistance of building structures, formulating protective measures, and ensuring the safe operation of facilities.

[0051] Example Two

[0052] Please refer to with emphasis Figures 6 to 12 , and please also refer to Figures 1 to 5 , the difference between this embodiment and Embodiment One is that: it further includes two anemometers 7 and two infrared laser timers 6. The two anemometers 7 and two infrared laser timers 6 are respectively communicatively connected to an external processing system. The anemometers 7 are respectively arranged in the corresponding outer spaces and are spaced above the corresponding monitoring mechanisms 3. The anemometers 7 are respectively installed on the rigid enclosure 1. The infrared laser timers 6 are respectively arranged in the middle spaces. Through the infrared laser timers 6, it is possible to monitor whether the corresponding air intake mechanisms 4 are opened, and to record the opening and closing time points of the corresponding air intake mechanisms 4, and start timing when the corresponding air intake mechanisms 4 are opened and stop timing when the corresponding air intake mechanisms 4 are closed. Specifically, the infrared laser timers 6 are arranged on the lower end surfaces of the air intake fixing seats 41. When the air intake movable door panel 43 is closed, the infrared laser timers 6 can receive the infrared rays emitted by themselves and reflected by surrounding objects. When the air intake movable door panel 43 is opened, the air intake movable door panel 43 blocks the infrared laser timers 6 from receiving the infrared rays emitted by themselves and reflected by surrounding objects. The salt spray solid particle concentration monitoring system for coastal environments provided by this embodiment can obtain the salt spray solid particle concentration more accurately and efficiently.

[0053] When in use, the salt spray solid particle concentration monitoring system for coastal environments can be set on the top of a building. In order to allow the wind to pass through as much as possible, the front-to-back through-flow air channels inside the rigid enclosure 1 can be parallel to the common wind direction in the current season; or four or eight salt spray solid particle concentration monitoring systems for coastal environments can be used. The front-to-back through-flow air channels inside the rigid enclosures 1 of the four salt spray solid particle concentration monitoring systems for coastal environments are respectively parallel to the four directions of east, south, west, and north, or the front-to-back through-flow air channels inside the rigid enclosures 1 of the eight salt spray solid particle concentration monitoring systems for coastal environments are respectively parallel to the eight directions of east, west, south, north, southeast, southwest, northeast, and northwest. When the wind blows, please refer to Figure 7 , the air flow enters the outer space on the windward side; when the air flow reaches a predetermined wind force level, please refer to Figure 8, the air flow opens the intake mechanism 4 on the windward side and the air outlet mechanism 5 on the windward side, and enters the middle space. Due to the guiding effect of the intake movable door panel 43 of the intake mechanism 4 on the windward side, the air flow first flows downward. After being blocked by the corresponding vertical support plate, the air flow moves upward. After being blocked by the top plate of the rigid enclosure 1 and the intake mechanism 4 on the windward side, the air flow blows towards the pneumatic plate of the adaptive tightening system 2, thereby driving the upper top plate to move. The movement of the upper top plate drives the hollow roller 24 to rotate. The rotation of the hollow roller 24 drives the lower top plate to move reversely to the air outlet mechanism 5 on the windward side, so that the air outlet mechanism 5 on the windward side is in a closed state, as Figure 9 shown; the air flow continues to move forward, please refer to Figure 10 , the air flow opens the air outlet mechanism on the leeward side and enters the interior of the monitoring mechanism 3 on the leeward side; the air flow continues to move forward, please refer to Figure 11 , the air flow flows out of the monitoring mechanism 3 on the leeward side through the vertical filter plate 36. The monitoring mechanism 3 collects the salt spray solid particles in the air flow flowing through the monitoring mechanism 3 through the vertical filter plate and the water tank 32. Then, the air flow continuously enters the middle space from the external space on the windward side through the intake mechanism 4 on the windward side (at this time, the air outlet mechanism on the windward side is closed by the adaptive tightening system 2 and the air flow cannot pass through), then enters the monitoring mechanism on the leeward side through the air outlet mechanism on the leeward side, and finally flows out of the monitoring mechanism 3 on the leeward side through the vertical filter plate 36 until the air flow stops as Figure 12 shown. It should be noted that the air flow path in the second embodiment is the same as the air flow path in the first embodiment. Subsequently, the external processing system uses the salt spray solid particles collected by the monitoring mechanism 3 to judge the concentration of salt spray solid particles in the coastal environment. Once the concentration of salt spray solid particles exceeds the standard, the reinforced concrete structure can be protected in time, reducing the risk of salt spray erosion of the reinforced concrete structure, which is of great significance for evaluating the corrosion resistance of reinforced concrete structures in coastal cities, formulating protection measures, and ensuring the safe operation of facilities.

[0054] Preferably, in the above-mentioned salt spray solid particle concentration monitoring system for coastal environment, the salt spray solid particle concentration is obtained by the following method: When the intake mechanism 4 is opened by the wind, the corresponding infrared laser timer 6 starts timing. The opening moment of the intake mechanism 4 is recorded as t0, and the weight m0 of the liquid pure water 34 when the intake mechanism 4 is opened is measured by the weight sensor 33; When the intake mechanism 4 is closed, the corresponding infrared laser timer 6 stops timing. The closing moment of the intake mechanism 4 is recorded as t1; the weight m1 of the liquid pure water 34 when the intake mechanism 4 is closed is measured by the weight sensor 33; The wind speed is measured in real time by the anemometer 7, and the average wind speed v during the period from the opening to the closing of the intake mechanism 4 is obtained, Calculate the wind flow rate Q, where Q = dhv. Here, d is the width of the rigid enclosure 1, and h is the distance from the top of the monitoring mechanism 3 to the top plate of the rigid enclosure 1; Calculate the total volume of air passed by the salt spray solid particle concentration monitoring device during the opening to closing of the air intake mechanism 4, denoted as V, where V = Q(t1 - t0); Calculate the salt spray solid particle concentration W, where W = (m1 - m0) / V. The unit of the salt spray solid particle concentration W is g / L. Here, according to the law of conservation of mass, that is, in a chemical reaction or physical change, the sum of the masses of all substances participating in the reaction (or mixing) is equal to the total mass of the substances formed (or formed) after the reaction (or mixing). At this time, the surface evaporation of the liquid pure water 34 is ignored, or a water replenishing device is used to keep the liquid pure water 34 in the water tank 32 at the original water level all the time.

[0055] The salt spray solid particle concentration monitoring system for the coastal environment provided by this embodiment can more accurately and automatically measure the salt spray solid particle concentration in the coastal environment. Once the salt spray solid particle concentration exceeds the standard, it can timely protect the reinforced concrete structure and reduce the risk of salt spray erosion on the reinforced concrete structure, which is of great significance for evaluating the corrosion resistance of reinforced concrete structures in coastal cities, formulating protection measures, and ensuring the safe operation of facilities.

[0056] Embodiment Three

[0057] Please refer to with emphasis Figures 13 to 16 and refer to Figures 1 to 12, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that: in the adaptive tightening system 2, the upper horizontal support member 23 adopts an upper rack, the lower horizontal support member 25 adopts a lower rack, the reverse transmission mechanism includes several two gears 24' and two elastic cables 26. The two gears 24' are respectively installed on the horizontal support portion 212. Through holes for accommodating the gears 24' are provided on the horizontal support portion 212. The lower rack is arranged in parallel below the horizontal support portion 212, and both ends of the lower rack are connected to both ends of the horizontal support portion 212 through corresponding elastic cables 26. The lower rack and the upper rack are respectively located on the upper and lower sides of the gears 24', and both gears 24' are meshed with the upper rack and the lower rack. When air flow enters the intermediate space, the air flow pushes the pneumatic plate 22 to move, thereby driving the upper rack to move. The movement of the upper rack drives the gears 24' to rotate, and the rotation of the gears 24' drives the lower rack to move in the reverse direction, so that the air outlet mechanism on the windward side is in a closed state. Since the salt spray solid particles in the air flow entering the middle space through the air outlet mechanism 5 on the windward side will be filtered out by the vertical filter plate 36 of the monitoring mechanism 3 on the windward side, which will reduce the accuracy of the measurement of the salt spray solid particle concentration. Therefore, by setting the adaptive tightening system 2, the air outlet mechanism 5 on the windward side can be closed, thereby improving the accuracy of the salt spray solid particle concentration.

[0058] Preferably, the adaptive tightening system further includes a gear driving motor (not shown) and two infrared laser timers 6. The gear driving motor and the two infrared laser timers 6 are respectively connected to an external processing system. The infrared laser timers 6 are respectively arranged in the middle space. Through the infrared laser timers 6, it can be monitored whether the corresponding air inlet mechanism 4 is opened. When the air inlet mechanism 4 on the windward side is opened by the air flow, the infrared laser timer sends the information that the air inlet mechanism 4 on the windward side is opened by the air flow to the external processing system. After receiving the information, the external processing system notifies the gear driving motor to work. The gear driving motor drives the gears 24' to rotate, and the gears 24' drive the lower rack to move towards the air outlet mechanism 5 on the windward side, closing the air outlet mechanism 5 on the windward side, so as to ensure that the lower rack can timely close the air outlet mechanism 5 on the windward side.

[0059] Embodiment 4

[0060] Please refer to Figures 17 to 18 for emphasis, and please also refer to Figures 1 to 12, the difference between this embodiment and other embodiments lies in that: in the adaptive tightening system 2, the upper horizontal support member 23 adopts an upper top plate, the lower horizontal support member adopts a lower top plate, the reverse transmission mechanism includes a number of two transmission wheels 24'', and a transmission belt 26'', the two transmission wheels 24'' are respectively installed on the horizontal support portion, the transmission belt 26'' is installed on the two transmission wheels 24'', a through hole for accommodating the reverse transmission mechanism is opened on the horizontal support portion 212, the upper top plate is fixedly connected to the upper center of the transmission belt 26'' through a connecting member 27'', the lower top plate is fixedly connected to the lower center of the transmission belt 26'' through a connecting member 27'', when the air flow enters the intermediate space, the air flow pushes the pneumatic plate 22 to move, thereby driving the upper top plate to move, the movement of the upper top plate drives the transmission belt 26'' to move, thereby driving the lower top plate to move in the reverse direction, so that the air outlet mechanism on the windward side is in a closed state.

[0061] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the field of the present invention based on the above disclosure are within the scope of protection of the claims.

Claims

1. A salt spray solid particle concentration monitoring system for a coastal environment, characterized in that, It includes a salt fog solid particle concentration monitoring device and an external processing system. The salt fog solid particle concentration monitoring device includes a rigid enclosure, and two valve components, an adaptive tightening system and two monitoring mechanisms arranged inside the rigid enclosure. The monitoring mechanisms are communicatively connected to the external processing system. The rigid enclosure is horizontally arranged, and there is an air flow channel running through from front to back inside the rigid enclosure. The two valve components divide the air flow channel into three spaces longitudinally along the air flow channel. The three spaces include a middle space and outer spaces on both sides of the middle space. The adaptive tightening system is arranged in the middle space and at the middle of the bottom plate of the rigid enclosure. Each valve component includes a unidirectional air intake mechanism and a bidirectional air outlet mechanism. The air intake mechanism can only introduce the air flow in the outer space into the middle space. The air intake mechanism and the air outlet mechanism are arranged vertically corresponding to each other. When the air intake mechanisms and air outlet mechanisms of the two valve components are both in the closed state, the lower end of the air intake mechanism and the upper end of the corresponding air outlet mechanism can abut against each other, so that the middle space becomes a closed space. The two monitoring mechanisms are respectively arranged outside the air outlet mechanisms of the corresponding valve components. The opening resistance of the air intake mechanism and the air outlet mechanism is the same. When the air flow reaches a predetermined wind force level, the air flow can open the air intake mechanism and the air outlet mechanism on the windward side, enter the middle space, drive the adaptive tightening system, so that the adaptive tightening system closes the air outlet mechanism on the windward side. At the same time, the air flow continues to move forward, flows through the monitoring mechanism on the leeward side, and the monitoring mechanism can collect the salt fog solid particles in the air flow flowing through the monitoring mechanism. The external processing system judges the salt fog solid particle concentration in the coastal environment by using the salt fog solid particles collected by the monitoring mechanism.

2. The salt spray solid particle concentration monitoring system for coastal environment according to claim 1, characterized in that, The monitoring mechanism includes a monitoring chamber and a water tank. The water tank is arranged inside the monitoring chamber. A weight sensor is arranged between the bottom of the water tank and the bottom plate of the rigid enclosure. The weight sensor is connected to the external processing system by wire or wirelessly. There is liquid pure water inside the water tank. A horizontal partition is arranged above the water tank at a distance. One end of the horizontal partition is arranged on the outer side where the lower end of the air intake mechanism abuts against the upper end of the air outlet mechanism and can abut against both the lower end of the air intake mechanism and the upper end of the air outlet mechanism at the same time. The other end of the horizontal partition is connected to the upper end of the side wall of the water tank far away from the adaptive tightening system through a vertical filter plate. The monitoring chamber is enclosed by the air outlet mechanism, the horizontal partition, the vertical filter plate, the side wall of the water tank far away from the adaptive tightening system and the rigid enclosure. The air flow entering the monitoring mechanism flows out of the monitoring mechanism through the vertical filter plate. The salt fog solid particles in the air flow flowing through the vertical filter plate are blocked by the vertical filter plate and fall into the liquid pure water in the water tank. The weight change of the liquid pure water is monitored by the weight sensor to obtain the weight change of the salt fog solid particles in the liquid pure water.

3. The salt fog solid particle concentration monitoring system for coastal environment according to claim 1, characterized in that, The adaptive pressing system includes a bracket, a plurality of pneumatic plates, an upper horizontal support member, a reverse transmission mechanism, and a lower horizontal support member. The plurality of pneumatic plates are fixedly arranged on the upper horizontal support member at equal intervals. The upper horizontal support member and the lower horizontal support member are both horizontally arranged. The pneumatic plates are vertically arranged and perpendicular to the longitudinal direction of the rigid enclosure. The bracket includes two vertical support plates and a horizontal support portion. Each vertical support plate extends along the transverse direction of the rigid enclosure. Each vertical support plate is provided with a through hole for the lower horizontal support member to pass through. The widths of the upper horizontal support member and the lower horizontal support member are both smaller than the width of the vertical support plate. The lower ends of the two vertical support plates are spaced apart on the bottom plate of the rigid enclosure. The upper ends of the two vertical support plates are respectively vertically connected to the two ends of the horizontal support portion. The reverse transmission mechanism is arranged on the horizontal support portion of the bracket. The upper horizontal support member is arranged above the reverse transmission mechanism. The lower horizontal support member is arranged in parallel below the horizontal support portion. When air flow enters the intermediate space, the air flow pushes the pneumatic plate to move, thereby driving the upper horizontal support member to move. The upper horizontal support member drives the lower horizontal support member to move in the reverse direction through the reverse transmission mechanism, so that the air outlet mechanism on the windward side is in a closed state.

4. The salt fog solid particle concentration monitoring system for coastal environment according to claim 3, characterized in that The heights of the two pneumatic plates located in the middle of the upper horizontal support member are the highest, and the heights of the plurality of pneumatic plates gradually decrease from the center of the upper horizontal support member to both sides.

5. The salt fog solid particle concentration monitoring system for coastal environment according to claim 3, characterized in that, The upper horizontal support member is an upper top plate, and the lower horizontal support member is a lower top plate. The reverse transmission mechanism includes a plurality of hollow rollers and two elastic cables. The horizontal support portion is provided with a long strip through hole for the plurality of hollow rollers to pass through. The hollow rollers are respectively installed on the horizontal support portion. The lower top plate is arranged in parallel below the horizontal support portion, and the two ends of the lower top plate are connected to the two ends of the horizontal support portion through the corresponding elastic cables. The plurality of hollow rollers are sequentially arranged on the lower top plate. The upper top plate is arranged on the plurality of hollow rollers. When air flow enters the intermediate space, the air flow pushes the pneumatic plate to move, thereby driving the upper top plate to move. The movement of the upper top plate drives the hollow rollers to rotate, and the rotation of the hollow rollers drives the lower top plate to move in the reverse direction, so that the air outlet mechanism on the windward side is in a closed state.

6. The salt fog solid particle concentration monitoring system for coastal environment according to claim 1, characterized in that, The intake mechanism includes an intake fixed seat, an intake arc-shaped end plate, an intake movable door plate, and an intake check valve plate. The intake fixed seat and the intake movable door plate are both arranged longitudinally along the horizontal direction of the rigid enclosure. The intake fixed seat is in the form of an intake semi-circular groove body with an upward opening. The two ends of the top of the intake semi-circular groove body are respectively fixedly connected to the top plate of the rigid enclosure. A through hole is opened at the bottom of the intake semi-circular groove body. The intake arc-shaped end plate is located in the groove of the intake semi-circular groove body. The outer surface of the intake arc-shaped end plate matches and adheres to the inner surface of the intake semi-circular groove body. The upper end of the intake movable door plate passes through the through hole at the bottom of the intake semi-circular groove body and is vertically connected to the middle part of the convex surface of the intake arc-shaped end plate. The intake check valve plate is fixedly arranged in the intake fixed seat. The intake check valve plate is located outside the end of the intake arc-shaped end plate away from the middle space. The intake check valve plate can limit the rotation of the intake movable door plate in the direction away from the middle space.

7. The salt spray solid particle concentration monitoring system for coastal environment according to claim 1, characterized in that, The exhaust mechanism includes an exhaust fixed seat, an exhaust arc-shaped end plate, an exhaust movable door plate, and an exhaust top plate. The exhaust fixed seat and the exhaust movable door plate are both arranged longitudinally along the horizontal direction of the rigid enclosure. The exhaust fixed seat is in the form of an exhaust semi-circular groove body with a downward opening. The two ends of the bottom of the exhaust semi-circular groove body are respectively fixedly connected to the bottom plate of the rigid enclosure. A through hole is opened at the top of the exhaust semi-circular groove body. The exhaust arc-shaped end plate is located in the groove of the exhaust semi-circular groove body. The outer surface of the exhaust arc-shaped end plate matches and adheres to the inner surface of the exhaust semi-circular groove body. The upper end of the exhaust movable door plate passes through the through hole at the bottom of the exhaust semi-circular groove body and is vertically connected to the middle part of the convex surface of the exhaust arc-shaped end plate. The exhaust top plate is vertically fixedly arranged in the middle of the exhaust fixed seat. The lower end of the exhaust top plate is fixedly connected to the bottom plate of the rigid enclosure. The exhaust top plate and the exhaust movable door plate in the closed state are in the same plane. A horizontally arranged cylinder is provided at the top of the exhaust top plate. The concave surface of the exhaust arc-shaped end plate is supported by the exhaust top plate and the exhaust arc-shaped end plate can freely rotate around the cylinder at the top of the exhaust top plate.

8. The salt spray solid particle concentration monitoring system for coastal environment according to claim 1, characterized in that, It also includes two anemometers and two infrared laser timers. The two anemometers and the two infrared laser timers are respectively in communication connection with an external processing system. The anemometers are respectively arranged in the corresponding outer spaces and are spaced above the corresponding monitoring mechanisms. The anemometers are respectively installed on the rigid enclosure. The infrared laser timers are respectively arranged in the middle space. Through the infrared laser timers, it is possible to monitor whether the corresponding intake mechanism is opened, record the opening and closing time points of the corresponding intake mechanism, start timing when the corresponding intake mechanism is opened, and stop timing when the corresponding intake mechanism is closed.

9. The salt fog solid particle concentration monitoring system for coastal environment according to claim 8, characterized in that, The salt spray solid particle concentration is obtained by the following method: When the intake mechanism is opened by the wind, the corresponding infrared laser timer starts timing. The opening moment of the intake mechanism is recorded as t0. The weight m0 of the liquid pure water at the opening of the intake mechanism is measured by a weight sensor; When the intake mechanism is closed, the corresponding infrared laser timer stops timing, and the closing moment of the intake mechanism is recorded as t1; the weight sensor measures the weight m1 of the liquid pure water when the intake mechanism is closed. The anemometer is used to measure the wind speed in real time and obtain the average wind speed v during the period from the opening to the closing of the intake mechanism. Calculate the wind flow Q, Q = dhv, where d is the width of the rigid enclosure and h is the distance from the top of the monitoring mechanism to the top plate of the rigid enclosure. Calculate the total volume of air passing through the salt spray solid particle concentration monitoring device during the period from the opening to the closing of the intake mechanism, denoted as V, V = Q (t1 - t0). Calculate the salt spray solid particle concentration W, W = (m1 - m0) / V, and the unit of the salt spray solid particle concentration W is g / L.

10. The salt spray solid particle concentration monitoring system for coastal environment according to claim 1, characterized in that, The salt spray solid particle concentration is obtained by the following method: the monitoring mechanism monitors the weight change of the liquid pure water every day to obtain the weight change amount of the salt spray solid particles every day, and the weight change amount of the salt spray solid particles measured every day is used as the salt spray solid particle concentration in the air, and the unit is grams per day.

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