CN117054299B - 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 PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 239000002245 particle Substances 0.000 title claims abstract description 140
- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 239000000443 aerosol Substances 0.000 claims abstract description 96
- 238000005070 sampling Methods 0.000 claims abstract description 49
- 238000001035 drying Methods 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000000889 atomisation Methods 0.000 claims abstract description 20
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 239000000126 substance Substances 0.000 claims abstract description 16
- 230000007613 environmental effect Effects 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000012876 topography Methods 0.000 claims description 4
- 238000002679 ablation Methods 0.000 claims description 3
- 150000002500 ions Chemical class 0.000 description 7
- 238000012546 transfer Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000013618 particulate matter Substances 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000001095 inductively coupled plasma mass spectrometry Methods 0.000 description 2
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 2
- 238000010223 real-time analysis Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000001636 atomic emission spectroscopy Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000005755 formation reaction Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 238000001819 mass spectrum Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating 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
- G01N27/64—Investigating 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
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Abstract
The application belongs to the technical field of biological aerosol detection, and in particular relates to an aquatic suspended particle on-line real-time monitoring navigation system, which comprises a navigation carrier and a detection water area navigation device, wherein the navigation carrier is arranged on the navigation carrier and can follow the navigation device together to navigate in the water area to be detected: 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 in-water suspended particle on-line real-time monitoring and navigation system can realize real-time on-line real-time monitoring and navigation analysis on particle size and chemical component information of in-water suspended particles such as rivers, lakes, oceans and the like.
Description
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 existing in the prior art, the application provides an on-line real-time monitoring navigation system for suspended particles in water.
The application discloses aquatic suspended particle on-line real-time monitoring system of going by plane includes:
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 in-water suspended particle on-line real-time monitoring navigation system, through means of real-time water sampling atomization and drying, in-water suspended particles are converted into aerosol forms, and in-water suspended particle size and chemical component information on-line real-time monitoring and navigation analysis of rivers, lakes, oceans and the like can be achieved 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 in a large-area monitoring area for analysis, timeliness of analysis objects (samples) can be guaranteed, and monitoring result distortion is avoided because of changes in sample storage, pretreatment and other processes.
Drawings
FIG. 1 is a schematic structural diagram of an 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 in-water suspended particle on-line real-time monitoring navigation system of the present application.
Detailed Description
In order to make the purposes, technical solutions and advantages of the implementation of the present application more clear, 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 aquatic suspended particle on-line real-time monitoring navigation system can realize the on-line navigation monitoring to the particle diameter and the chemical composition information real-time analysis of aquatic suspended particle.
Specifically, the aquatic suspended particle on-line real-time monitoring navigation system 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 in the application can adopt a single particle mass spectrometer or other mass spectrometers, and the single particle mass spectrometer can be combined with other on-line aerosol particle detection instruments such as spectrum and mass spectrum.
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 further include, 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.
Further, the single-navigation carrier is also selected appropriately according to the requirement, and can be, for example, a navigation ship, a submarine or other forms of carriers (carriers) capable of performing online real-time monitoring on the navigation of suspended particulate matters 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 sailing boat can continuously extract the water passing through the sailing boat, suspended particles in the water are in an aerosol form after being atomized and dried, and the suspended particles are subjected to real-time detection and analysis by the single-particle mass spectrometer to obtain the particle size and chemical component information of the corresponding particles.
Further, the specific operation mode of the in-water suspended particle on-line real-time monitoring navigation system 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 in-water suspended particle on-line real-time monitoring navigation system, through means of real-time water sampling atomization and drying, in-water suspended particles are converted into aerosol forms, and in combination with a navigation detection ship and a single particle mass spectrometer, the particle size and chemical component information of in-water suspended particles such as rivers, lakes and oceans can be monitored in real time on line and analyzed in navigation.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
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 water sampling device, the atomizing device and the aerosol particle detection device are borne 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, the navigation carrier is a navigation ship, the navigation ship comprises a navigation ship body lower layer (101), a navigation ship body upper layer (102), a propeller (103) for providing navigation power and a power system (104) for providing power for all electric equipment, wherein the water sampling device, the atomizing device and the power system (104) are positioned on the navigation ship body lower layer (101), and the drying device and the aerosol particle detection device are positioned on the navigation ship body upper layer (102);
the water sampling device comprises a water inlet pipe (202), a water pump (203) is arranged on the water inlet pipe (202), a water inlet of the water inlet pipe (202) penetrates through the bottom of the lower layer (101) of the sailing ship body from inside to outside, an interception grid (201) is arranged at the water inlet, and a water outlet of the water inlet pipe (202) is connected to the atomizing device;
the atomization device comprises an atomizer (206) and an atomization chamber (207), the atomization 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 through the water outlet end of the water inlet pipe, the atomizer (206) is arranged at the water outlet end of the water inlet pipe (202), and in addition, the aerosol transmission port of the atomization chamber (207) is connected with the drying device through the aerosol transmission pipe (212);
the atomizing device further includes:
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).
2. The on-line real-time monitoring navigation system of suspended particles in water according to claim 1, 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.
3. The in-water suspended particle on-line real-time monitoring navigation system according to claim 1, wherein 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).
4. The in-water suspended particle online real-time monitoring navigation system of claim 3, wherein the aerosol particle detection device is a single particle mass spectrometer (300).
5. The in-water suspended particle online real-time monitoring navigation system of claim 4, 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.
6. The on-line real-time monitoring navigation system of suspended particles in water according to any one of claims 1-5, 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.
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