Multi-environmental-factor monitoring device for marine atmospheric environment

Abstract

The invention discloses a multi-environmental-factor monitoring device for a marine atmospheric environment. A temperature and humidity sensor, an air pressure sensor, a wind speed and direction sensor, a solar radiation and rainfall sensor and a salt mist deposition rate monitoring module are arranged on a base; a through hole is formed in a top plate of a trapping pool of the salt mist deposition rate monitoring module, a wet candle is arranged in the through hole, water for collecting chloride ions is arranged in the trapping pool, a liquid supplementing mechanism is arranged on the trapping pool, and an electrode type liquid level sensor is arranged on the top plate of the trapping pool; the electrode type liquid level sensor comprises a positive electrode probe, a negative electrode probe, a sensor control part and a sensor power supply. According to the invention, factors of temperature, humidity, solar radiation, air pressure, wind speed and wind direction, rainfall and salt mist borne by a vessel can be monitored, the problem that the measurement result of a salt mist deposition rate monitoring device used on a mobile platform such as an ocean vessel drastically drifts is effectively solved, and the salt mist deposition rate can be monitored more accurately.

Description

Technical Field

[0001] The invention belongs to the technical field of environmental monitoring equipment, and in particular relates to a multi-environmental factor monitoring device for marine atmospheric environment. Background Art

[0002] Equipment and facilities serving in the marine environment are subject to harsh marine atmospheric environmental influences such as high temperature, high humidity, strong wind, high salt, and strong solar radiation, which can cause equipment and facilities to fail and degrade. Real-time observation of environmental factors in the marine atmospheric environment and understanding of the level of environmental factors and environmental change laws in which equipment and facilities are located are of great significance to the design, assessment, and maintenance of the environmental adaptability of equipment and facilities serving in the marine environment.

[0003] In order to realize the real-time online monitoring of salt spray deposition rate, a companion type salt spray deposition rate automatic monitoring device (document CN116698723A) was developed in the early stage, including a wet candle method salt spray deposition rate acquisition unit, a single chip microcomputer, a D / A conversion circuit and a data acquisition module, the single chip microcomputer is connected to the D / A conversion circuit, the D / A conversion circuit is connected to the control electrode of the wet candle method salt spray deposition rate acquisition unit, the single chip microcomputer is used to send digital signal instructions, the D / A conversion circuit is used to convert the digital signal instructions into analog signal instructions, and send them to the wet candle method salt spray deposition rate acquisition unit; the wet candle method salt spray deposition rate acquisition unit is fixed on the base of the device, and the gauze used to deposit the salt spray in the environment into the solution in the wet candle method salt spray deposition rate acquisition unit is exposed to the environment through the through hole set on the upper cover of the device. However, the salt spray deposition rate automatic monitoring device developed in the early stage is only suitable for use in a static state, such as being installed in a test station. In actual situations, many equipment (such as ships) are constantly moving. If the above-mentioned device is used directly, one of the main problems is that the measurement results are very likely to drift significantly (sometimes large, sometimes small). The deviation of the measurement results at different locations at the same similar time (time difference no more than two minutes) can even be as high as more than 50%. Therefore, for this type of navigation equipment, a mobile (moving with the equipment) salt spray deposition rate monitoring device is required to carry out salt spray deposition rate monitoring more accurately.

[0003] In addition to salt spray, ships and equipment serving in the marine atmosphere are also subject to harsh marine atmospheric environmental influences such as high temperature, high humidity, strong winds, and strong solar radiation, which can also cause the failure and degradation of ship equipment and facility components. Therefore, it is necessary to integrate the monitoring of environmental factors such as salt spray, temperature, humidity, solar radiation, and air pressure to comprehensively evaluate their environmental impact on equipment, but there is currently no integrated monitoring device that can meet this requirement. Summary of the invention

[0004] At least in order to solve the technical problems mentioned in the background technology, the present invention aims to provide a multi-environmental factor monitoring device for marine atmospheric environment.

[0005] The present invention adopts the following technical solution.

[0006] A multi-environmental factor monitoring device for marine atmospheric environment comprises a base on which are arranged temperature and humidity sensors, air pressure sensors, wind speed and direction sensors, solar radiation sensors, rainfall sensors and a salt spray deposition rate monitoring module. Furthermore, the salt spray deposition rate monitoring module includes a capture tank, a through hole is provided on the top plate of the capture tank, a wet candle is inserted in the through hole, gauze is wrapped on the wet candle, water for collecting chloride ions is contained in the capture tank, the shell of the capture tank is made of insulating material, a liquid replenishing mechanism is provided on the capture tank, and an electrode type liquid level sensor is provided on the top plate of the capture tank; the electrode type liquid level sensor includes a positive probe, a negative probe, a sensor control component and a sensor power supply, and the lower ends of the positive probe and the negative probe are both 0~1mm higher than the lower end surface of the top plate of the capture tank; when the positive probe and the negative probe are in contact with water at the same time, a current loop is formed by the positive probe, the negative probe, the water in the capture tank and the sensor power supply, and the sensor control component sends a signal A that senses the liquid; conversely, when the positive probe and the negative probe are not in contact with water at the same time, the sensor control component sends a signal B that does not sense the liquid.

[0007] In order to further improve the accuracy of the measurement results, multiple sets of positive and negative probes are arranged side by side. The positive and negative probes are needle-shaped structures. All positive and negative probes are arranged linearly in the width direction of the capture tank top plate, and the spacing between adjacent probes is no more than 8mm.

[0008] As a preferred solution, at least two groups of positive pole probes and negative pole probes are provided, wherein the two groups of positive pole probes and negative pole probes are located on the same side of the wet candle.

[0009] In order to further improve the accuracy of the measurement results, the cross-section of the capture tank top plate is arc-shaped, and the highest point of the capture tank top plate is arranged in the center.

[0010] Furthermore, the horizontal center line of the inner cavity of the capture tank forms an angle of 2 to 5 degrees with the horizontal plane, and the positive probe and the negative probe are located on a relatively high side, with the horizontal plane of the bottom plate of the capture tank as the reference, and one group of positive probes and negative probes are located at the top corner of the relatively high side. With such a solution, the liquid level state in the capture tank can be monitored more accurately.

[0011] Furthermore, the fluid replenishment mechanism includes a syringe, the sleeve of the syringe is fixedly mounted on the top plate of the capture tank, a liquid filling port is also provided on the sleeve of the syringe, the needle body of the syringe is inserted into the inner cavity of the capture tank from the top plate of the capture tank, the piston rod of the syringe is connected to the lifting rod assembly, the lifting rod of the lifting rod assembly is mounted on the end of the output shaft of the servo motor, and the lifting rod assembly is controlled to move up and down by the operation of the servo motor, thereby driving the piston rod to move up and down.

[0012] Furthermore, the servo motor and the sensor control component are connected to a control system, and the control system includes a memory, a processor, and a program stored in the memory and executable on the processor, and the processor implements the following steps when executing the program: S1, when the signal A fed back by all the probes and the sensor control components is always obtained within the target time period, the servo motor is controlled to be turned off, indicating that the capture tank is full of water in this state; S2, whenever the signal B fed back by the sensor control component is recognized, the servo motor is first controlled to start and run according to the preset parameters, so that the piston rod of the syringe moves down to the target length, and in this process, the pure water in the sleeve of the syringe is replenished into the capture tank; S3, repeat steps S1 and S2.

[0013] In the present invention, the multi-environmental factor monitoring device is mainly suitable for installation on ships during navigation, and can also be installed in marine atmospheric environment test stations, test points, etc.

[0014] Furthermore, the wet candle wrapped with gauze is fitted with the through hole in an interference fit, and the through hole is a threaded hole. Such a solution can not only prevent the loss of liquid in the capture tank as much as possible without affecting the deposition of chloride ions, but also prevent the wet candle itself from moving and shaking.

[0015] As a preferred solution, in step S2, 5 to 10 ml of pure water is added each time.

[0016] Beneficial effects: The scheme of the present invention can not only monitor factors such as marine atmospheric environment temperature, humidity, solar radiation, air pressure, wind speed and direction, rainfall, and chloride ions, but also effectively solve the problem of large drift of measurement results of salt spray deposition rate monitoring devices used for mobile equipment platforms such as marine ships, and realize the follow-up monitoring of salt spray deposition rate on mobile equipment platforms such as ships, so as to monitor the salt spray deposition rate more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of the multi-environmental factor monitoring device in Example 1; Figure 2 Schematic cross-sectional view of the multi-environmental factor monitoring device in Example 1; Figure 3 This is a top view schematic diagram of the multi-environmental factor monitoring device in Example 1; Figure 4 This is a schematic diagram of the capture tank in Example 1. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that the other main structures (structures other than the capture tank and the rehydration mechanism) of the salt spray deposition rate monitoring module in the present invention and its working principle refer to the previously developed products, see document CN116698723A for details. Example 1

[0019] Combination Figures 1 to 4 As shown, a multi-environmental factor monitoring device for marine atmospheric environment is installed on a ship during travel. The device includes a base, on which are arranged temperature and humidity sensors, air pressure sensors, wind speed and wind direction sensors, solar radiation sensors, rainfall sensors and salt spray deposition rate monitoring modules. The layout of each sensor is arranged by technicians in this field according to actual conditions. Among them, the temperature and humidity sensors can adopt CS215, HMP60, HC2A-S3 and other series of integrated temperature and humidity sensors, the air pressure sensors can adopt PTB110, PTB330, PTU300 series, the wind speed and wind direction sensors can adopt V200A-UMB, Ventus-UMB and other ultrasonic wind speed and wind direction sensors, the solar radiation sensors can adopt kipp&zonenSMP12, kipp&zonen CMP22 and the like, and the rainfall sensor can adopt TS PPS-01 ultrasonic rainfall sensor.

[0020] In this embodiment, the salt spray deposition rate monitoring module includes a capture tank 1, the bottom plate and four side plates of the capture tank 1 are flat plates, the top plate 19 of the capture tank 1 is an arc-shaped plate, the highest point of the top plate of the capture tank 1 is arranged in the center, and a chloride ion selective electrode 13 is arranged on the bottom plate of the capture tank 1; a through hole 15 is arranged on the top plate of the capture tank 1, a wet candle 2 is inserted in the through hole 15, and gauze is wrapped around the wet candle 2. The wet candle 2 wrapped with gauze and the through hole 15 are fitted in an interference fit, and the through hole 15 is a threaded hole; water for collecting chloride ions is filled in the capture tank 1, the shell of the capture tank 1 is made of insulating material, a liquid replenishing mechanism is arranged on the capture tank 1, and an electrode type liquid level sensor is arranged on the top plate of the capture tank 1; the electrode type liquid level sensor includes a positive The positive probe 10, the negative probe 11, the sensor control component and the sensor power supply, the positive probe 10 and the negative probe 11 are both silver needles with a diameter not greater than 3 mm, the positive probe 10 and the negative probe 11 are inserted from the pinhole 14 on the top plate 19, and the lower ends of the positive probe 10 and the negative probe 11 are 0-1 mm higher than the lower end surface of the top plate of the capture tank 1; when the positive probe 10 and the negative probe 11 are in contact with water at the same time, the positive probe 10, the negative probe 11, the water in the capture tank 1 and the sensor power supply jointly form a current loop, and the sensor control component sends a signal A that senses the liquid; conversely, when the positive probe 10 and the negative probe 11 are not in contact with water at the same time, the sensor control component sends a signal B that the liquid is not sensed.

[0021] In this embodiment, multiple sets of positive probes 10 and negative probes 11 are arranged side by side, and a matching positive probe 10 and negative probe 11 are defined as a group (as shown in the figure, numbers A1, A10, B1, and C5 respectively represent a group of positive probes 10 and negative probes 11). The figure schematically shows 11 groups of positive probes 10 and negative probes 11 (in the length direction of the capture tank 1), and each group contains 10 sets of positive probes 10 and negative probes 11 (in the width direction of the capture tank 1). The positive probes 10 and negative probes 11 are needle-shaped structures, and all positive probes 10 and negative probes 11 are linearly arranged in the width direction of the top plate of the capture tank 1, and the spacing between adjacent probes is 6 mm.

[0022] In this embodiment, all positive probes 10 and negative probes 11 are located on the same side of the wet candle 2 ( Figure 1The horizontal center line 17 of the inner cavity of the capture tank 1 forms an angle of 3° with the horizontal plane 18. Taking the horizontal plane where the bottom plate of the capture tank 1 is located (the plane is parallel to the horizontal plane 18) as the reference, the positive probe 10 and the negative probe 11 are located on the relatively higher side, and one set of the positive probe 10 and the negative probe 11 is located at the top corner 9 on the relatively higher side. Since the horizontal center line 17 of the inner cavity of the capture tank 1 forms an angle of 3° with the horizontal plane 18, the inner cavity of the capture tank 1 is slightly lower on the left and higher on the right, so that the initially generated bubbles 21 will preferentially stay in the right area of ​​the wet candle 2, so that the corresponding signal (i.e., the feedback signal B) can be quickly and timely monitored; in addition, the top plate 19 is an arc plate, so that the initially generated bubbles 21 will preferentially exist in the area on the right side of the wet candle 2. The corresponding position in the middle of the top plate 19 can effectively prevent the bubbles 21 from appearing in the dead corner area (such as the corner of the inner cavity of the capture tank 1), further ensuring the timeliness, precision and accuracy of the monitoring process.

[0023] In this embodiment, the liquid replenishing mechanism includes a syringe 3, a sleeve 7 of the syringe 3 is fixedly mounted on the top plate of the capture tank 1, and a liquid filling port 20 is also provided on the sleeve 7 of the syringe 3, through which pure water can be poured into the sleeve 7, a needle body 4 of the syringe 3 is inserted from the top plate of the capture tank 1 into the inner cavity of the capture tank 1, a piston rod 5 of the syringe 3 is connected to a lifting rod assembly 6, and a lifting rod 16 of the lifting rod assembly 6 is mounted on the end of the output shaft of the servo motor 8. When in use, the lifting rod assembly 6 is controlled to move up and down by the operation of the servo motor 8, thereby driving the piston rod 5 to move up and down (the lifting rod assembly 6 and the servo motor 8 are essentially a screw lifting mechanism).

[0024] In this embodiment, the servo motor 8 and the sensor control component are connected to a control system, and the control system includes a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: S1, when the signal A fed back by all the probes and the sensor control components is always obtained within the target time period, the servo motor is controlled to be turned off, indicating that the capture tank 1 is full of water in this state; In this step: when the collection tank 1 is completely filled with water, there are no bubbles in the inner cavity of the collection tank 1 (similar to the bubbles in the level), then each set of positive probe 10, negative probe 11, water, and sensor power supply can form a current loop (that is, the circuit is conductive), and the sensor control component sends a signal A sensing the liquid, and the signal A indicates that the collection tank 1 is full of water; S2, whenever the signal B fed back by the sensor control component is recognized, the servo motor is controlled to start and run according to the preset parameters, so that the piston rod 5 of the syringe 3 moves down to the target length. During this process, the pure water in the sleeve 7 of the syringe 3 is replenished into the capture tank 1, and the pure water replenished each time is 6 ml; In this step: when part of the water in the capture tank 1 evaporates, bubbles will be generated in the inner cavity of the capture tank 1, and then part of the positive probe 10, the negative probe 11, the water, and the sensor power supply cannot form a current loop (that is, part of the circuit is non-conductive), and the sensor control component sends a feedback signal B, which indicates that the capture tank 1 is not full of water; for example, Figure 3 It schematically shows that when bubbles 21 appear at the positive probe 10 and the negative probe 11 of the C5 group, the current loop corresponding to the positive probe 10 and the negative probe 11 of the C5 group is disconnected, and the signal B is fed back at this time; S3, repeat the steps S1 and S2.

[0025] The salt spray deposition rate monitoring device in use is installed on the ship equipment during the driving process. The ship will shake significantly when driving, which will cause the salt spray deposition rate monitoring device to swing significantly. On the one hand: when part of the water in the capture tank 1 evaporates, bubbles or even cavities will be generated in the inner cavity of the capture tank 1, and the liquid in the capture tank 1 will intermittently collide with the wet candle 2 and the chloride ion sensing probe in the capture tank. This state seriously affects the chloride ions collected by the exposed part of the wet candle 2 from moving downward into the liquid in the capture tank 1, adding The intermittent sensing state of the chloride ion sensing probe makes the real-time measurement results prone to repeated jumps (sometimes large, sometimes small) and instability; on the other hand: when part of the water in the capture tank 1 evaporates (actual measurements show that the capture tank 1 with a volume of 500ml has only about 320ml left after continuous use in Hainan for half a month, and the liquid volatilization amount at different monitoring points and in different seasons varies by as much as about 30-60ml), the amount of liquid in the capture tank 1 decreases, which is quite different from the amount of liquid theoretically used to calculate the salt spray deposition rate, seriously affecting the accuracy of the measurement results. After adopting the scheme in the embodiment, as long as bubbles with a diameter greater than 6mm are generated in the inner cavity of the capture tank 1, water replenishment can be monitored in time (the corresponding water loss is less than 3ml), and the remaining water replenishment is used to soak the gauze on the wet candle 2, and the accuracy of the original monitoring data (water loss) can be controlled within 3ml, fundamentally avoiding the problems of liquid sloshing and insufficient water in the capture tank 1. With the traditional solution, even with the current very precise liquid level sensor, it can only be monitored after about 20 ml of water evaporates in the capture tank 1 (because the current width of the capture tank must be no less than 15 cm to meet the requirements). The multi-environmental factor monitoring device was installed on the deck of a certain type of ship and monitored in the sea area around the Hainan test station. The four monitoring values ​​at the same similar time (in the absence of wind, each time interval is 10 seconds) were 1.011 (mg / 100cm 2 .d))、1.010(mg / 100cm 2 .d))、1.010(mg / 100cm 2.d)、1.010(mg / 100cm 2 .d)). It can be seen that the measurement results do not show significant drift.

[0026] The scheme of the embodiment can not only monitor the factors such as temperature, humidity, solar radiation, air pressure, wind speed and direction, rainfall, and salt spray to which the ship is subjected, but also effectively solve the problem of large drift of measurement results of salt spray deposition rate monitoring devices used on mobile platforms such as marine ships, realize the follow-up monitoring of salt spray deposition rate on mobile platforms such as ships, and can monitor the salt spray deposition rate more accurately.

Claims

1. A multi-environmental factor monitoring device for marine atmospheric environment, characterized in that: The device comprises a base, on which are arranged temperature and humidity sensors, air pressure sensors, wind speed and direction sensors, solar radiation and rainfall sensors and a salt spray deposition rate monitoring module.

2. The multi-environmental factor monitoring device according to claim 1, characterized in that: The salt spray deposition rate monitoring module includes A capture tank (1), wherein a through hole is provided on the top plate of the capture tank (1), a wet candle (2) is inserted in the through hole, gauze is wound around the wet candle (2), water for collecting chloride ions is contained in the capture tank (1), a shell of the capture tank (1) is made of insulating material, a liquid replenishing mechanism is provided on the capture tank (1), and an electrode type liquid level sensor is provided on the top plate of the capture tank (1); the electrode type liquid level sensor comprises a positive electrode probe (10), a negative electrode probe (11), a sensor control component and a sensor power supply, the positive electrode probe (1 The lower ends of the positive probe (10) and the negative probe (11) are both 0 to 1 mm higher than the lower end surface of the top plate of the collection tank (1); when the positive probe (10) and the negative probe (11) are in contact with water at the same time, a current loop is formed by the positive probe (10), the negative probe (11), the water in the collection tank (1) and the sensor power supply, and the sensor control component sends a signal A indicating that liquid is sensed; conversely, when the positive probe (10) and the negative probe (11) are not in contact with water at the same time, the sensor control component sends a signal B indicating that liquid is not sensed.

3. The multi-environmental factor monitoring device according to claim 2, characterized in that: The positive electrode probes (10) and negative electrode probes (11) are arranged in multiple sets side by side. The positive electrode probes (10) and negative electrode probes (11) are needle-shaped structures. All positive electrode probes (10) and negative electrode probes (11) are arranged linearly in the width direction of the top plate of the capture tank (1), and the spacing between adjacent probes is no more than 8 mm.

4. The multi-environmental factor monitoring device according to claim 3, characterized in that: At least two groups of the positive electrode probes (10) and the negative electrode probes (11) are provided, and at least two groups of the positive electrode probes (10) and the negative electrode probes (11) are located on the same side of the wet candle (2).

5. The multi-environmental factor monitoring device according to claim 4, characterized in that: The cross section of the top plate of the capture tank (1) is arc-shaped, and the highest point of the top plate of the capture tank (1) is arranged in the center.

6. The multi-environmental factor monitoring device according to claim 5, characterized in that: The horizontal center line of the inner cavity of the capture tank (1) forms an angle of 2 to 5 degrees with the horizontal plane. Taking the horizontal plane where the bottom plate of the capture tank (1) is located as a reference, the positive probe (10) and the negative probe (11) are located on a relatively high side, wherein a group of the positive probe (10) and the negative probe (11) are located at the top corner (9) of the relatively high side.

7. The multi-environmental factor monitoring device according to any one of claims 2 to 6, characterized in that: The fluid replenishing mechanism comprises a syringe (3), a sleeve (7) of the syringe (3) being fixedly mounted on a top plate of a capture tank (1), a liquid filling port being further provided on the sleeve (7) of the syringe (3), a needle body (4) of the syringe (3) being inserted from the top plate of the capture tank (1) into the inner cavity of the capture tank (1), a piston rod (5) of the syringe (3) being connected to a lifting rod assembly (6), and a lifting rod (16) of the lifting rod assembly (6) being mounted on the end of an output shaft of a servo motor.

8. The multi-environmental factor monitoring device according to claim 7, characterized in that: The servo motor and the sensor control component are connected to a control system, which includes a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are implemented: S1, when the signal A fed back by all the probes and the sensor control components is always obtained within the target time period, the servo motor is controlled to be turned off, indicating that the capture tank (1) is full of water in this state; S2, whenever a signal B fed back by the sensor control component is identified, the servo motor is first controlled to start and operate according to preset parameters, so that the piston rod (5) of the syringe (3) moves down to a target length, and in this process, the pure water in the sleeve (7) of the syringe (3) is replenished into the capture tank (1); S3, repeat steps S1 and S2.

9. The multi-environmental factor monitoring device according to claim 8, characterized in that: The salt spray deposition rate monitoring device is installed on a ship during traveling.

10. The multi-environmental factor monitoring device according to claim 9, characterized in that: The wet candle (2) wrapped with gauze is fitted with the through hole in an interference fit manner, and the through hole is a threaded hole.

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