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CN117054299A - On-line real-time monitoring navigation system for suspended particles in water - Google Patents

On-line real-time monitoring navigation system for suspended particles in water Download PDF

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Publication number
CN117054299A
CN117054299A CN202311317499.4A CN202311317499A CN117054299A CN 117054299 A CN117054299 A CN 117054299A CN 202311317499 A CN202311317499 A CN 202311317499A CN 117054299 A CN117054299 A CN 117054299A
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CN
China
Prior art keywords
water
aerosol
particles
navigation
drying
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Granted
Application number
CN202311317499.4A
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Chinese (zh)
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CN117054299B (en
Inventor
张倩华
李梅
裴成磊
李磊
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Guangzhou Ecological Environment Monitoring Center Station Guangdong Province
Jinan University
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Guangzhou Ecological Environment Monitoring Center Station Guangdong Province
Jinan University
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Priority to CN202311317499.4A priority Critical patent/CN117054299B/en
Publication of CN117054299A publication Critical patent/CN117054299A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/02Investigating particle size or size distribution
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001Drying-air generating units, e.g. movable, independent of drying enclosure
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/44Sample treatment involving radiation, e.g. heat
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/64Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/02Devices for withdrawing samples
    • G01N1/10Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1418Depression, aspiration

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The application belongs to the technical field of biological aerosol detection, and particularly relates to an online real-time monitoring navigation system for suspended particles in water, which comprises a navigation carrier and a navigation system, wherein the navigation carrier is arranged on the navigation carrier and can navigate in a water area to be detected along with the navigation system: the water sampling device is used for sampling the water body of the water area to be detected in real time; the atomization device is used for receiving the water body acquired by the water body sampling device in real time, atomizing the water body, and mixing the atomized particles with external environmental gas to convert the particles into aerosol particles; the drying device is used for drying the aerosol particles transmitted by the atomizing device; and the aerosol particle detection device is used for detecting and analyzing the particle size and chemical component information of the aerosol particles. The on-line real-time monitoring and navigation system for the suspended particles in water can realize the on-line real-time monitoring and navigation analysis of the particle size and chemical composition information of suspended particles in water such as rivers, lakes, oceans and the like.

Description

On-line real-time monitoring navigation system for suspended particles in water
Technical Field
The application belongs to the technical field of biological aerosol detection, and particularly relates to an on-line real-time monitoring navigation system for suspended particles in water.
Background
The marine particulate matter goes through a series of processes of formation, transfer, sedimentation, burial and the like in the sea, in which the process records biological activity and information of physical and chemical processes in the sea, and the chemical composition characteristics of the particulate matter can fully reflect the change of natural environment and the influence of human activity on the marine environment, so that the marine particulate matter becomes an important way for researching bio-geochemical action in various disciplines.
At present, the component analysis of suspended particles in water such as rivers, lakes, oceans and the like is mainly performed in an off-line sampling mode by using scanning electron microscope (sem), atomic Emission Spectroscopy (AES), inductively coupled plasma mass spectrometry (ICP-MS), inductively coupled plasma atomic emission spectrometry (ICP-OES) and other instruments, and complicated pretreatment operation is usually required to be performed on the collected suspended particle samples during the analysis. In order to analyze the source composition of suspended particles in water environments such as rivers, lakes, oceans and the like, a plurality of sampling points are required to be arranged in a large-area monitoring area for analysis, time and labor are wasted, the timeliness of samples cannot be guaranteed, and the samples are easy to change in the processes of transferring, preprocessing and the like.
At present, no related research on a method capable of carrying out real-time navigation on-line monitoring on suspended particulate matters in water environment exists.
Disclosure of Invention
In order to solve at least one technical problem in the prior art, the application provides an on-line real-time monitoring navigation system for suspended particles in water.
The application discloses an on-line real-time monitoring navigation system for suspended particles in water, which comprises the following steps:
the water sampling device is used for sampling the water body of the water area to be detected in real time;
the atomization device is used for receiving the water body acquired by the water body sampling device in real time, atomizing the water body, and mixing the atomized particles with external environmental gas to convert the particles into aerosol particles;
the drying device is used for drying the aerosol particles transmitted by the atomizing device;
the aerosol particle detection device is used for receiving the aerosol particles after the drying treatment transmitted by the drying device, and detecting and analyzing to obtain the particle size and chemical component information of the aerosol particles;
the navigation carrier is used for bearing the water sampling device, the atomizing device and the aerosol particle detection device to navigate in the water area to be detected, so that the water sampling device can sample the water body in the water area to be detected in real time.
Optionally, the water sampling device comprises a water inlet pipe, a water pump is arranged on the water inlet pipe, an interception grid is arranged at the water inlet of the water inlet pipe, and the water outlet of the water inlet pipe is connected to the atomizing device.
Optionally, the water sampling device further comprises a pressure gauge and a flowmeter which are arranged on the water sampling tube and close to the water outlet end of the water sampling tube.
Optionally, the atomizing device includes atomizer and atomizer chamber, the atomizer chamber is provided with water import, gas compensation mouth, outlet and aerosol transmission mouth, wherein, the water advance the appearance pipe through its delivery port end follow the water import stretches into the atomizer chamber, just the atomizer sets up the delivery port tip of water advance the appearance pipe, in addition, the aerosol transmission mouth of atomizer chamber pass through aerosol transmission pipe with drying device connects.
Optionally, the atomizing device further comprises:
a gas compensation pipe connected to the gas compensation port, and provided with a high-efficiency filter thereon;
a drain pipe connected to the drain port, and a check valve is provided on the drain pipe.
Optionally, the drying device includes the drying chamber, the drying chamber is provided with dry air inlet and dry gas vent, wherein, dry air inlet with aerosol transmission pipe is connected, dry gas vent is connected with dry blast pipe, set up the air pump on the dry blast pipe, in addition, be in between air pump and the dry gas vent on the dry blast pipe, still be provided with the aerosol sampling port, the aerosol sampling port is connected to through the aerosol sampling tube aerosol particle detection device.
Optionally, the aerosol particle detection device is a single particle mass spectrometer.
Optionally, the single particle mass spectrometer comprises a sample injection system, a calipers system, an ionization system, and a mass analysis system, wherein:
the sample injection system is used for receiving aerosol particles conveyed from the aerosol sampling tube and focusing the aerosol particles by utilizing an aerodynamic lens;
the diameter measuring system is used for determining the particle size and the diameter measuring particle number of the focused aerosol particles;
the ionization system is used for carrying out ablation and ionization on aerosol particles and generating a fluorescent signal;
the mass analysis system is used for simultaneously carrying out positive and negative ion analysis under the action of the bipolar time-of-flight mass analyzer to acquire chemical component information of aerosol particles.
Optionally, the navigation carrier is further provided with:
the sonar is used for positioning the navigation carrier and identifying surrounding topography information;
the camera is used for recording and monitoring surrounding environment information in the navigation process;
the antenna is used for carrying out remote connection and information transmission with the outside;
the hygrothermograph is used for monitoring the environmental temperature and humidity of the navigation carrier;
the host is used for controlling the running state of the whole system of the navigation carrier and collecting data information.
Optionally, the navigation carrier is a navigation ship, and the navigation ship comprises a navigation ship lower layer, a navigation ship upper layer, a propeller for providing navigation power and a power system for providing power for all electric equipment.
The application has at least the following beneficial technical effects:
according to the on-line real-time monitoring navigation system for the suspended particles in water, the suspended particles in water are converted into an aerosol form through the means of real-time water sampling atomization and drying, and the on-line real-time monitoring and navigation analysis for the particle size and chemical component information of suspended particles in water such as rivers, lakes, oceans and the like can be realized by combining a navigation carrier and a single particle mass spectrometer, complicated pretreatment operation on collected suspended particle samples is not needed, a plurality of sampling points are not needed to be arranged for analysis in a large-area monitoring area, the timeliness of analysis objects (samples) can be ensured, and the monitoring result distortion caused by the change in the processes of sample storage, pretreatment and the like is not needed.
Drawings
FIG. 1 is a schematic diagram of the on-line real-time monitoring navigation system for suspended particles in water;
fig. 2 is a schematic structural diagram of a single particle mass spectrometer in the on-line real-time monitoring navigation system for suspended particles in water.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application become more apparent, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the embodiments of the present application.
The application discloses an online real-time monitoring navigation system for suspended particles in water, which can realize online navigation monitoring for real-time analysis of particle size and chemical component information of suspended particles in water.
Specifically, the on-line real-time monitoring navigation system for suspended particles in water comprises a water body sampling device, an atomizing device, a drying device, an aerosol particle detection device and a navigation carrier.
The water sampling device is used for sampling the water body of the water area to be detected in real time; the atomizing device is used for receiving the water body acquired by the water body sampling device in real time, atomizing the water body, and mixing the atomized particles with external environmental gas to convert the particles into aerosol particles; the drying device is used for drying the aerosol particles transmitted by the atomizing device; the aerosol particle detection device is used for receiving the aerosol particles after the drying treatment transmitted by the drying device, and detecting and analyzing to obtain the particle size and chemical component information of the aerosol particles; the navigation carrier is used for bearing a water body sampling device, an atomization device and an aerosol particle detection device to navigate in a water area to be detected, so that the water body sampling device can sample the water body of the water area to be detected in real time.
It will be appreciated that the water sampling device, the atomizing device and the drying device may be any of various suitable devices known to have the same function, or the specific structure thereof may be appropriately set as required, and the structure of each device will be described below with a specific example.
As shown in fig. 1, in the present embodiment, the water sampling device includes a water inlet pipe 202, a water pump 203 is disposed on the water inlet pipe 202, and the water pump 203 is used for providing power for pumping water and sampling; in addition, an interception grating 201 is arranged at the water inlet of the water sampling pipe 202, and the aperture of the interception grating 201 is preferably 100 μm, so that obstacles with the diameter larger than 100 μm in water (also called water samples) can be intercepted; further, a pressure gauge 204 and a flow meter 205 are sequentially arranged on the water inlet pipe 202 and near the water outlet end thereof, and are respectively used for measuring the pressure and the flow of the water body in the water inlet pipe 202 in real time, thereby being convenient for controlling the water pump 203; finally, the water outlet of the water injection tube 202 is connected to an atomizer.
In this embodiment, the atomizing device includes an atomizer 206, an atomizing chamber 207; further, the atomizing chamber 207 is provided with a water inlet, a gas compensation port, a water outlet and an aerosol transmission port; wherein, the water inlet pipe 202 extends into the atomization chamber 207 from the water inlet of the atomization chamber 207 through the water outlet end thereof, and the atomizer 206 is also arranged in the atomization chamber 207 and is arranged at the water outlet end of the water inlet pipe 202, so that the atomizer 206 can carry the water inlet pipe 202 to the water in the atomization chamber 207 for real-time atomization; in addition, an aerosol transfer port of the atomizing chamber 207 is connected to a drying device through an aerosol transfer tube 212.
Further, a gas compensation pipe 208 is connected to a gas compensation port of the atomization chamber 207, and a high-efficiency filter 209 is arranged on the gas compensation pipe 208, so that the filtered external environment gas can be introduced into the atomization chamber 207 through the arrangement of the gas compensation pipe 208 and the high-efficiency filter 209, and the filtered external environment gas and the atomized particles of the water body sample are mixed and converted into an aerosol form.
Further, a drain pipe 211 is connected to a drain port of the atomizing chamber 207, and a check valve 210 is provided on the drain pipe 211, so that the redundant (incompletely atomized) water in the atomizing chamber 207 can be discharged in real time by the arrangement of the drain pipe 211 and the check valve 210.
In this embodiment, the drying device includes a drying chamber 213; specifically, the drying chamber 213 is provided with a drying air inlet and a drying air outlet, wherein the drying air inlet is used for being connected with the aerosol transfer tube 212 (i.e., the atomizing chamber 207 is connected with the drying chamber 213 through the aerosol transfer tube 212); further, a dry exhaust pipe 216 is connected to the dry exhaust port, an air pump 215 is arranged on the dry exhaust pipe 216, and an aerosol sampling port is further arranged on the dry exhaust pipe 216 between the air pump 215 and the dry exhaust port, and is connected to an aerosol particle detection device through an aerosol sampling pipe 214; wherein the drying exhaust pipe 216 and the air pump 215 are provided for providing a transmission power of the aerosol in the atomizing chamber 207, the aerosol transmission pipe 212 and the drying chamber 213, preventing the aerosol from being lost by sedimentation inside.
Furthermore, the aerosol particle detection device can adopt a single particle mass spectrometer or other mass spectrometers, and can also be combined with other on-line aerosol particle detection instruments such as spectrum, mass spectrum and the like.
In this embodiment, the aerosol particle detection device is preferably a single particle mass spectrometer 300. It should be noted that, single Particle Mass Spectrometry (SPMS) is a mass spectrometer that can directly detect the particle size and chemical composition information of aerosol particles in the environment on line without pretreatment, and has been widely used in the aspects of aerosol component research, aerosol particle source analysis, and atmospheric navigation monitoring; i.e. single particle mass spectrometer 300, is a relatively mature device, and therefore only its principle of operation (or course of operation) and only its structure will be reacted by the principle of operation.
The single particle mass spectrometer 300 includes a sample injection system, a calipers system, an ionization system, and a mass analysis system; wherein the sample injection system is used for receiving aerosol particles delivered from the aerosol sampling tube 214 and focusing the aerosol particles by using the aerodynamic lens 304; the diameter measuring system is used for determining the particle size and the diameter measuring particle number of the focused aerosol particles; the ionization system is used for carrying out ablation and ionization on aerosol particles and generating a fluorescent signal; the mass analysis system is used for simultaneously carrying out positive and negative ion analysis under the action of the bipolar time-of-flight mass analyzer to acquire chemical component information of aerosol particles.
Further, the single particle mass spectrometer 300 operates as follows (in conjunction with fig. 2):
the vacuum system inside the single particle mass spectrometer 300 is vacuumized by a first differential chamber molecular pump gas outlet 306, a second differential chamber molecular pump gas outlet 308 and a third differential chamber molecular pump gas outlet 316, and the vacuum environment required by the detection of the internal aerosol is maintained; aerosol particles firstly enter a sample inlet 301, transition to an internal low vacuum environment through a critical hole 302, after the speed of the aerosol particles in a downstream buffer cavity 303 is reduced and stabilized, the aerosol particles enter an aerodynamic lens 304 to be focused into collimated particle beams, then the collimated particle beams are accelerated by supersonic airflow of an acceleration nozzle 305, pass through a differential hole 307, sequentially pass through laser irradiation generated by a first continuous laser 309 and a second continuous laser 312, scattered light generated after particle irradiation is converged to a first photoelectric detector 311 and a second photoelectric detector 314 through a first spherical mirror 310 and a second spherical mirror 313 respectively, the flight time of single aerosol particles is obtained through two photoelectric signal peaks of the first photoelectric detector 311 and the second photoelectric detector 314, and corresponding aerodynamic particle size and flight speed are obtained through conversion; the particles then enter the downstream transport tube 315 into the center of the extraction electrode 318, where the upstream measured particle flight velocity triggers the pulsed ionization laser 317 to produce high energy pulsed laser light that resolute the particles. Positive and negative ions generated after ionization are accelerated and led out by the leading-out electrode 318 in opposite directions, enter a field-free flight zone to fly, are reflected and turned by the first reflecting electrode 319 and the second reflecting electrode 321 respectively, enter the first ion detector 320 and the second ion detector 322 through one field-free flight zone to measure the corresponding ion signal intensity, and are further converted into positive and negative ion mass spectrograms of corresponding particles to obtain corresponding chemical component information.
Further, as shown in fig. 1, the navigation carrier in the present application may be further provided with, for example, a sonar 401, a camera 402, an antenna 403, a hygrothermograph 404 and a host 405 as required.
The sonar 401 is used for positioning a navigation carrier and identifying surrounding topography information; the camera 402 is used for recording and monitoring surrounding environment information during sailing; the antenna 403 is used for remote connection and information transmission with the outside; the hygrothermograph 404 is used for monitoring the environmental temperature and humidity of the navigation carrier; the host 405 is used for controlling the overall system operation state of the navigation carrier and data information acquisition.
Furthermore, the single-navigation carrier of the application is also suitable to be selected according to the needs, for example, the carrier (carrier) can be a navigation ship, a submarine or other forms of carriers (carriers) capable of carrying out on-line real-time monitoring on the navigation of suspended particles in water.
In this embodiment, the preferable navigation carrier is a navigation ship, and the navigation ship includes a lower layer 101 of a navigation ship body (which is partially or completely located in a water body of a water area to be detected during navigation), an upper layer 102 of a navigation ship body (which is located outside the water body of the water area to be detected during navigation), a propeller 103 for providing navigation power, and a power system 104 for providing power to all electric devices in the navigation system. It should be noted that, in the above-mentioned water sampling device, atomizing device, drying device and aerosol particle detecting device, the corresponding power supply device may be separately provided to meet the use requirement, but in this embodiment, in order to improve the stability of the whole navigation system, it is preferable that all the device power is provided by the power system 104 on the navigation ship.
As shown in fig. 1, in addition to the propeller 103, the water sampling device, the atomizing device, the sonar 401, and the power system 104 are preferably located at the lower layer 101 of the hull, and the drying device, the aerosol particle detecting device, the camera 402, the antenna 403, the hygrothermograph 404, and the host 405 are preferably located at the upper layer 102 of the hull.
In summary, the navigation ship can continuously extract the water passing through the navigation ship in the navigation process, suspended particles in the water are in an aerosol form after being atomized and dried, and the single-particle mass spectrometer is used for carrying out real-time detection and analysis on the suspended particles to obtain the particle size and chemical component information of the corresponding particles.
Furthermore, the specific operation mode of the on-line real-time monitoring navigation system for suspended particles in water is as follows:
during the sailing process of the sailing boat, the electric power system 104 supplies power to the whole system of the sailing boat, and the propeller 103 provides sailing power for the sailing boat; the water pump 203 continuously pumps water and samples the bottom of the lower layer 101 of the sailing ship body, the water body sample firstly intercepts an obstacle with the diameter larger than 100 mu m through the water body inlet interception grille 201, sequentially passes through the water inlet pipe 202, the water pump 203, the pressure gauge 204 and the flowmeter 205, and then is atomized in real time by the atomizer 206 and enters the atomization chamber 207; the atomization chamber 207 introduces filtered external ambient gas through the gas compensation pipe 208 and the high-efficiency filter 209, and the filtered external ambient gas is mixed with the atomized particles of the water body sample to be converted into an aerosol form;
further, the aerosol generated in the atomizing chamber 207 is transmitted to a drying chamber 213 through an aerosol transmission pipe 212 to be dried, moisture in the aerosol is removed, and then the dried aerosol is transmitted to a single particle mass spectrometer 300 through an aerosol sampling pipe 214 to perform online detection and analysis of particle size and chemical component information of single particles;
in the course of sailing, sonar 401 can be in the boat location of sailing and discernment topography information around, and camera 402 can record and monitor navigation process surrounding environment information, and antenna 403 can carry out remote connection and information transmission with the outside, and hygrothermograph 404 can monitor boat environment humiture, and host computer 405 can control the overall system operation state of boat and data information acquisition.
According to the on-line real-time monitoring and navigation system for the suspended particles in water, the suspended particles in water are converted into an aerosol form through the means of real-time water sampling atomization and drying, and the particle size and chemical component information of suspended particles in water such as rivers, lakes, oceans and the like can be monitored and analyzed in real time in an on-line manner by combining a navigation detection ship and a single particle mass spectrometer.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. An on-line real-time monitoring navigation system for suspended particles in water, which is characterized by comprising:
the water sampling device is used for sampling the water body of the water area to be detected in real time;
the atomization device is used for receiving the water body acquired by the water body sampling device in real time, atomizing the water body, and mixing the atomized particles with external environmental gas to convert the particles into aerosol particles;
the drying device is used for drying the aerosol particles transmitted by the atomizing device;
the aerosol particle detection device is used for receiving the aerosol particles after the drying treatment transmitted by the drying device, and detecting and analyzing to obtain the particle size and chemical component information of the aerosol particles;
the navigation carrier is used for bearing the water sampling device, the atomizing device and the aerosol particle detection device to navigate in the water area to be detected, so that the water sampling device can sample the water body in the water area to be detected in real time.
2. The on-line real-time monitoring navigation system of suspended particles in water according to claim 1, wherein the water sampling device comprises a water inlet pipe (202), a water pump (203) is arranged on the water inlet pipe (202), an interception grid (201) is arranged at a water inlet of the water inlet pipe (202), and a water outlet of the water inlet pipe (202) is connected to the atomizing device.
3. The on-line real-time monitoring navigation system of suspended particles in water according to claim 2, wherein the water sampling device further comprises a pressure gauge (204) and a flow meter (205) arranged on the water intake pipe (202) near the water outlet end thereof.
4. The on-line real-time monitoring navigation system of suspended particles in water according to claim 2, characterized in that the atomizing device comprises an atomizer (206) and an atomizing chamber (207), the atomizing chamber (207) is provided with a water inlet, a gas compensation port, a water outlet and an aerosol transmission port, wherein the water inlet pipe (202) extends into the atomizing chamber (207) from the water inlet through its water outlet end, and the atomizer (206) is arranged at the water outlet end of the water inlet pipe (202), in addition, the aerosol transmission port of the atomizing chamber (207) is connected with the drying device through an aerosol transmission pipe (212).
5. The on-line real-time monitoring navigation system of suspended particles in water of claim 4, wherein the atomizing device further comprises:
a gas compensation tube (208) connected to the gas compensation port, and a high efficiency filter (209) is provided on the gas compensation tube (208);
a drain pipe (211) connected to the drain port, and a check valve (210) is provided on the drain pipe (211).
6. The on-line real-time monitoring navigation system of suspended particles in water according to claim 4, characterized in that the drying device comprises a drying chamber (213), the drying chamber (213) is provided with a drying air inlet and a drying air outlet, wherein the drying air inlet is connected with the aerosol transmission pipe (212), the drying air outlet is connected with a drying air outlet pipe (216), an air pump (215) is arranged on the drying air outlet pipe (216), and in addition, an aerosol sampling port is arranged on the drying air outlet pipe (216) between the air pump (215) and the drying air outlet, and the aerosol sampling port is connected to the aerosol particle detection device through an aerosol sampling pipe (214).
7. The in-water suspended particle online real-time monitoring navigation system of claim 6, wherein the aerosol particle detection device is a single particle mass spectrometer (300).
8. The in-water suspended particle online real-time monitoring navigation system of claim 7, wherein the single particle mass spectrometer (300) comprises a sample injection system, a calipers system, an ionization system, and a mass analysis system, wherein:
the sample injection system is used for receiving aerosol particles conveyed from the aerosol sampling tube (214) and focusing the aerosol particles by utilizing an aerodynamic lens (304);
the diameter measuring system is used for determining the particle size and the diameter measuring particle number of the focused aerosol particles;
the ionization system is used for carrying out ablation and ionization on aerosol particles and generating a fluorescent signal;
the mass analysis system is used for simultaneously carrying out positive and negative ion analysis under the action of the bipolar time-of-flight mass analyzer to acquire chemical component information of aerosol particles.
9. The in-water suspended particle on-line real-time monitoring navigation system according to any one of claims 1-8, wherein the navigation carrier is further provided with:
the sonar (401) is used for positioning the navigation carrier and identifying surrounding topography and landform information;
a camera (402) for recording and monitoring environmental information around the sailing process;
an antenna (403) for remote connection and information transmission with the outside;
the hygrothermograph (404) is used for monitoring the environmental temperature and humidity of the navigation carrier;
and the host (405) is used for controlling the overall system operation state of the navigation carrier and data information acquisition.
10. The on-line real-time monitoring navigation system of suspended particles in water according to claim 9, wherein the navigation carrier is a navigation vessel comprising a lower navigation hull layer (101), an upper navigation hull layer (102), a propeller (103) for providing navigation power and a power system (104) for providing power to all electrical consumers.
CN202311317499.4A 2023-10-12 2023-10-12 On-line real-time monitoring navigation system for suspended particles in water Active CN117054299B (en)

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