Method and apparatus for flowing liquid particle control

Abstract

The application provides a method for controlling flow liquid particles and a device for realizing the method, which takes large-flow liquid as a sample to be collected and takes particles in the large-flow liquid as an object to be observed; an independent observation area with an inlet and an outlet is arranged outside a field environment to be measured, liquid in the observation area keeps flowing, a transparent bottom plate is arranged at the bottom end of the observation area, and a movable baffle is arranged above the transparent bottom plate in the observation area, particles in the large-flow liquid in the observation area are separated and fixed by pressing a tablet between the baffle and the transparent bottom plate, and the separated and fixed particles are returned to the large-flow liquid by phase separation between the baffle and the transparent bottom plate. The application is fast, efficient and convenient, and can realize position control and effective fixation of the particles under the premise that the shape of the particles and the flow of the liquid are less affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical instruments, more particularly to a method and device for controlling particles in flowing liquid. BACKGROUND

[0002] With the increasing population and the gradual improvement of industrial level in China, the discharge of sewage and wastewater increases, which has a greater impact on the ecological environment, especially the water environment. Various forms of water contain a large number of pollutants, and the water quality indicators are complex, among which the particulate matter is one of the main pollutants in water.

[0003] Particulate matter widely exists in natural water. As a research object, particulate matter has no strict definition. Broadly speaking, particulate matter can include mineral particles, organic and inorganic colloids, polymers, bacteria, algae and humus, etc. Generally, particulate matter has a large specific surface area, which can easily cause adsorption and chemical reactions of micro-pollutants on the micro-interface, become the carrier of organic and inorganic micro-pollutants, and further affect the migration and transformation of micro-pollutants in nature.

[0004] The existence of particulate matter in activated sludge and wastewater has also been reported a lot. Activated sludge method plays an important role in the field of wastewater treatment, and has the ability to decompose organic matter in wastewater into inorganic matter, so as to achieve the purpose of purifying wastewater. The main acting substance is activated sludge, which is a flocculation body formed by microorganisms such as bacteria and micro-animals, as well as colloidal and suspended substances attached to them. The composition of particulate matter in activated sludge and wastewater is complex, and may contain various bacterial flora, such as anaerobic ammonia oxidation bacteria, so there is a potential correlation between the performance of the sludge and the particulate matter. It has certain research significance to observe and analyze the spectrum of these particulate matters.

[0005] However, particulate matter in high-flow liquid is difficult to control effectively, which may cause some adverse effects, such as blocking the pipeline, leaving the observation area, interfering with subsequent research, etc. At present, there are few effective solutions to these problems.

[0006] Therefore, it is necessary to invent a suitable method and device to solve the above problems encountered in actual situations, and better realize the control of particulate matter in flowing liquid, which is the key to promoting the research and development of the field. SUMMARY

[0007] The present application aims to at least partially solve the above technical problems. To this end, the present application proposes a method and device for controlling flowing liquid particles, which are fast, efficient and convenient, so as to realize position control and effective fixation of particles under the premise of ensuring that the morphology of particles and the flow of liquid are less affected, while making the device portable, modular and low-cost, so that it can be coupled with imaging devices and spectral instruments and applied to real-time observation scenes.

[0008] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0009] A method for controlling flowing liquid particles:

[0010] The flowing liquid with a large flow rate is used as a sample to be collected, and the particles in the flowing liquid with a large flow rate are used as an object to be observed.

[0011] An independent observation area is provided outside the to-be-tested field environment, which is configured with a water inlet and a water outlet. The flowing liquid with a large flow rate in the to-be-tested field environment can be introduced into the observation area through the water inlet. The liquid in the observation area remains in a flowing state. A transparent bottom plate is provided at the bottom end of the observation area. A movable baffle is provided above the transparent bottom plate in the observation area. The baffle is used to form a tablet by being closely attached to the transparent bottom plate or being separated from the transparent bottom plate.

[0012] The tablet is used to separate and fix the particles in the flowing liquid with a large flow rate in the observation area. The baffle is separated from the transparent bottom plate to make the separated and fixed particles return to the flowing liquid with a large flow rate.

[0013] The method for controlling flowing liquid particles is further provided as follows:

[0014] The to-be-tested field environment is a natural water body, a container or a sewage treatment plant.

[0015] The present application also proposes a device for controlling flowing liquid particles, which is used to implement the above-mentioned method for controlling flowing liquid particles. The structure is provided as follows:

[0016] The internal cavity of the channel also serves as an observation area. The observation area is also provided with a water inlet and a water outlet which are communicated with the observation area. The bottom end of the observation area is packaged by a detachable transparent bottom plate.

[0017] The channel is also provided with a movable baffle and a displacement mechanism. The baffle is built-in in the observation area and located directly above the transparent bottom plate. The upper end of the baffle is provided with a light absorption device. The baffle can be driven by the displacement mechanism, displaced downward to be directly opposite to and closely attached to the transparent bottom plate, isolated from external light by the light absorption device, or displaced upward to be separated from the transparent bottom plate.

[0018] The structural features of this device for controlling particulate matter in flowing liquids are also as follows:

[0019] The main body of the displacement mechanism is a syringe with an open bottom. The piston rod is movably inserted into the syringe and one end is exposed outside the syringe as a handheld end. The light-absorbing device is installed at the end of the syringe that is built into it. The baffle is installed at the bottom of the light-absorbing device. A vertical sleeve protruding upward is provided at the top of the channel, corresponding to the position directly above the transparent base plate. The syringe is vertically set downward and fits through the vertical sleeve to extend into the observation area. The light-absorbing device, the baffle, and the piston rod are synchronous displacement components, which can extend downward to the outside of the syringe as the piston rod moves vertically. The baffle is closely attached to the transparent base plate directly below.

[0020] The displacement mechanism includes a radial magnet and a servo motor externally mounted on the top of the channel, and a rotating shaft, a swing arm, and an axial magnet built into the observation area. The radial magnet is driven by the servo motor and can rotate around the central axis, switching to have one end of its magnetic pole facing the axial magnet, either with the same or different magnetic poles. The axial magnet can be attracted to the lower end of the top wall of the channel by the magnetic force between it and the radial magnet. The swing arm is swung and suspended above the observation area via the rotating shaft. One end of the swing arm is equipped with the axial magnet, and the other end is equipped with the baffle. A light-absorbing device is installed on the upper end of the baffle. As the axial magnet and the radial magnet attract or separate, the swing arm can be swung around the rotating shaft to switch to being close to or separate from the transparent base plate directly below.

[0021] The radial magnet has a horizontal central axis and is positioned transversely at the center of the top of the channel. It is coaxially mounted on the output shaft of the servo motor. The axial magnet has a vertical central axis, and the swing arm is fixed to the outer circumference of the axial magnet through blades.

[0022] The bottom of the channel is provided with a slot, and the transparent base plate is inserted into the slot and encapsulated at the bottom of the observation area.

[0023] The transparent base plate is a glass slide.

[0024] The inner wall of the light-absorbing device is blackened with carbon powder.

[0025] A camera module is disposed below the transparent base plate. The camera module includes a camera and an objective lens. The objective lens is mounted on the lens end of the camera and is adjacent to and directly facing the transparent base plate.

[0026] Compared with existing technologies, the beneficial effects of this invention are reflected in:

[0027] Traditional imaging and spectroscopic methods involve numerous sampling and preprocessing steps, resulting in unsatisfactory imaging quality. This invention, while minimizing the impact on particle morphology and liquid flow, utilizes a displacement mechanism to control the baffle displacement. Through the cooperation of the baffle and the transparent base plate, it achieves better positional control and effective fixation of particles in flowing liquids. This solves the existing defects of particles in large-flow liquids easily causing pipe blockage and particles and other objects of observation not being effectively present in the observation area. At the same time, this invention makes the device portable, modular, and low-cost, and can couple imaging devices and spectroscopic instruments, making it applicable to scenarios such as real-time on-site observation. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention;

[0029] Figure 2 yes Figure 1 Exploded view of the central channel, displacement mechanism and transparent base plate;

[0030] Figure 3 yes Figure 1 Schematic diagram of the intermediate displacement mechanism;

[0031] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0032] Figure 5 yes Figure 3 Schematic diagram of the intermediate displacement mechanism;

[0033] Figure 6 yes Figure 3 A simplified schematic diagram of the structure when the axial magnet and radial magnet of the intermediate displacement mechanism attract each other.

[0034] In the diagram, 1 is the channel, 2 is the observation area, 3 is the inlet, 4 is the outlet, 5 is the slot, 6 is the transparent base plate, 7 is the baffle, 8 is the light absorption device, 9 is the camera, 10 is the camera base, 11 is the objective lens, 12 is the LED light ring, 13 is the injection cylinder, 14 is the piston rod, 15 is the vertical sleeve, 16 is the servo motor, 17 is the radial magnet, 18 is the axial magnet, 19 is the rotating shaft, 20 is the pendulum, and 21 is the blade. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] This invention relates to a method for controlling particulate matter in flowing liquids, and more particularly to the effective manipulation, separation, and fixation of particulate matter in large-flow-rate flowing liquids. The method for controlling particulate matter in flowing liquids according to this embodiment is as follows:

[0037] High-flow-rate liquid is used as the sample to be collected, and particulate matter in the high-flow-rate liquid is used as the object to be observed.

[0038] An independent observation area with an inlet and an outlet is set up outside the test site environment. A large flow of liquid in the test site environment can be introduced into the observation area through the inlet. The liquid in the observation area remains in a flowing state. A transparent base plate is set at the bottom of the observation area. A movable baffle is set in the observation area above the transparent base plate. By utilizing the movement of the baffle, it is closely attached to the transparent base plate to form a pressing plate or phase separation.

[0039] The particle pressing method is used to separate and fix particulate matter in a high-flow-rate liquid within the observation area. A camera module is placed below the transparent base plate to observe the separated and fixed particulate matter. The separation between the baffle and the transparent base plate allows the separated and fixed particulate matter to return to the high-flow-rate liquid.

[0040] In practice, the environment to be tested can be a natural water body, a container, or a sewage treatment plant, etc.

[0041] Example 1:

[0042] Please refer to Figure 1 and Figure 3 The apparatus for controlling particulate matter in flowing liquid in this embodiment is for implementing the above-described method for controlling particulate matter in flowing liquid, and its structure is as follows:

[0043] The channel has an internal cavity that serves as an observation area. It is also equipped with an inlet and an outlet that communicate with the observation area. The bottom of the observation area is enclosed by a detachable transparent base plate. A camera module is set below the transparent base plate. The camera module includes a camera and an objective lens. The objective lens is installed at the lens end of the camera and is adjacent to and directly facing the transparent base plate.

[0044] The passageway is also equipped with movable baffles and displacement mechanisms. The baffles are built into the observation area and are located directly above the transparent base plate. A light-absorbing device is installed at the top. The baffles can be moved by the displacement mechanism, either downwards to face the transparent base plate and be closely attached to it, thus isolating external light from above through the light-absorbing device, or upwards to separate from the transparent base plate.

[0045] The corresponding structural features of the device also include:

[0046] The main body of the displacement mechanism is a syringe with an open bottom. The piston rod is movably inserted into the syringe, with one end protruding outside the syringe as a handheld end. A light-absorbing device is installed at the end of the syringe, and a baffle is installed at the bottom of the light-absorbing device. A vertical sleeve protruding upward is provided at the top of the channel, corresponding to the position directly above the transparent base plate. The syringe is set vertically downward and fits through the vertical sleeve to extend into the observation area. The light-absorbing device, baffle, and piston rod are synchronous displacement components, which can extend downward to the outside of the syringe as the piston rod moves vertically. The baffle is closely attached to the transparent base plate directly below, with a gap between them.

[0047] The bottom of the channel has a slot, into which a transparent base plate is inserted and encapsulated at the bottom of the observation area.

[0048] The transparent base is a glass slide. The baffle is a glass plate.

[0049] The inner wall of the light-absorbing device is blackened with carbon powder to improve the light absorption effect. The purpose is to avoid the observation area being affected by external light. The specific material of the light-absorbing device can be selected as needed.

[0050] In the camera module, the camera is mounted on a camera base, and an LED light ring or other light source is installed around the outer edge of the objective lens. The camera module can be connected to a computer camera program, coupled with imaging devices and spectrometers, for spectral acquisition and imaging.

[0051] When implementing this, the following steps can be taken:

[0052] Step 1: Before starting, insert the syringe into the vertical sleeve at the top of the channel, and then pull the piston rod up to a higher position so that the baffle does not contact the transparent base plate, ensuring that the fluid flow in the observation area is not obstructed.

[0053] Step 2: Introduce a large flow of liquid from the site environment into the observation area of ​​the channel through the inlet;

[0054] Step 3: Push the piston rod down to move the baffle towards the bottom of the observation area, to a small distance from the transparent base plate, thus completing the fixation of particulate matter in a large flow of liquid;

[0055] Step 4: Connect the LED ring power supply; the LED ring will then light up.

[0056] Step 5: Adjust the focus of the camera module and observe the particulate matter;

[0057] Step 6: After observation, pull the piston rod up to a higher position to separate the baffle from the transparent base plate, allowing the previously fixed particles to return to the liquid.

[0058] Step 7: Turn off the power and shut down the camera module.

[0059] Example 2:

[0060] Please refer to Figure 4 and Figure 6 The device for controlling particulate matter in flowing liquid in this embodiment has a structure that is basically similar to that in Embodiment 1, except that it uses a displacement mechanism with a different structural form, as follows:

[0061] The channel has an internal cavity that serves as an observation area. It is also equipped with an inlet and an outlet that communicate with the observation area. The bottom of the observation area is enclosed by a detachable transparent base plate. A camera module is set below the transparent base plate. The camera module includes a camera and an objective lens. The objective lens is installed at the lens end of the camera and is adjacent to and directly facing the transparent base plate.

[0062] The passageway is also equipped with movable baffles and displacement mechanisms. The baffles are built into the observation area and are located directly above the transparent base plate. A light-absorbing device is installed at the top. The baffles can be moved by the displacement mechanism, either downwards to face the transparent base plate and be closely attached to it, thus isolating external light from above through the light-absorbing device, or upwards to separate from the transparent base plate.

[0063] The corresponding structural features of the device also include:

[0064] The displacement mechanism includes a radial magnet and a servo motor externally mounted on the top of the channel, and a rotating shaft, a swing arm, and an axial magnet built into the observation area. The radial magnet is driven by the servo motor and can rotate around the central axis, switching so that the same or different magnetic poles at one end face the axial magnet, causing the radial magnet and the axial magnet to repel or attract each other. During rotation, the magnitude of the magnetic force between them changes. The axial magnet can rely on the magnetic force between it and the radial magnet to be attracted to the lower end of the top wall of the channel. The swing arm is swung and suspended inside the observation area via the rotating shaft. One end is equipped with the axial magnet, and the other end is equipped with a baffle. A light-absorbing device is installed on the upper part of the baffle. It can switch to being closely attached to or separated from the transparent base plate directly below by the swing arm around the rotating shaft as the axial magnet and the radial magnet attract or separate.

[0065] The radial magnet has a horizontal centerline and is placed at the middle of the top of the channel. It is coaxially mounted on the output shaft of the servo motor. The axial magnet has a vertical centerline, and the rocker arm is fixed to the outer circumference of the axial magnet by means of blades.

[0066] When implementing this, the following steps can be taken:

[0067] Step 1: Before starting, use the repulsive force between the radial magnet and the axial magnet to make the shaft rotate until the baffle is separated from the transparent bottom plate. Alternatively, introduce liquid in advance to make the baffle float under the action of buoyancy, so that the fluid flow is not obstructed after the device is turned on.

[0068] Step 2: Introduce a large flow of liquid from the site environment into the observation area of ​​the channel through the inlet;

[0069] Step 3: Start the servo motor. The radial magnet will rotate 180° under the drive of the servo motor, so that the magnetic pole opposite to that of the axial magnet is facing the axial magnet.

[0070] Step 4: Under the action of magnetic force between the axial magnet and the radial magnet, the shaft rotates, causing the swing arm to swing. The axial magnet is attached to the lower end of the top wall of the channel, and the baffle at the other end of the swing arm falls down and is attached to the transparent bottom plate, fixing the particles between the two.

[0071] Step 5: Adjust the focus of the camera module and observe the particulate matter;

[0072] Step 6: Activate the servo motor. The radial magnet rotates 180° under the drive of the servo motor, so that the magnetic pole with the same polarity as the axial magnet faces the axial magnet, causing the baffle to rise and detach from the transparent base plate.

[0073] Step 7: Turn off the power and shut down the camera module.

[0074] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for controlling particulate matter in flowing liquids, characterized in that: This method utilizes a device for controlling particulate matter in flowing liquid. A high-flow-rate liquid is used as the sample to be collected, and the particulate matter within the high-flow-rate liquid is used as the object to be observed. An independent observation area with an inlet and outlet is set up outside the test site environment. The high-flow-rate liquid from the test site environment is introduced into the observation area through the inlet, maintaining the liquid's flow within the observation area. A transparent base plate is installed at the bottom of the observation area, and a movable transparent baffle is installed above the transparent base plate within the observation area. The baffle can be moved, or it can be in close contact with the transparent base plate to form a pressure plate, or it can be separated from the baffle. The pressure plate separates and fixes the particulate matter in the high-flow-rate liquid within the observation area, while the separation between the transparent baffle and the transparent base plate allows the separated and fixed particulate matter to return to the high-flow-rate liquid. In the device for controlling the flow of liquid particles, the internal cavity of the channel serves as the observation area. The channel is also equipped with an inlet and an outlet that communicate with the observation area. The bottom of the observation area is encapsulated by a detachable transparent base plate. The channel is also equipped with a movable transparent baffle and a displacement mechanism. The transparent baffle is built into the observation area and is located directly above the transparent base plate. A light-absorbing device is provided at the top. The transparent baffle can be driven by the displacement mechanism or moved downwards to be directly opposite and closely attached to the transparent base plate, and the light-absorbing device can isolate external light from above, or it can be moved upwards to be separated from the transparent base plate. A camera module is disposed below the transparent base plate. The camera module includes a camera and an objective lens. The objective lens is mounted on the lens end of the camera and is adjacent to and directly facing the transparent base plate. The inner wall of the light-absorbing device is blackened with carbon powder. The main body of the displacement mechanism is a syringe with an open bottom. A piston rod is movably inserted into the syringe, with one end protruding outside the syringe as a handheld end. The light-absorbing device is installed at one end of the syringe, and the transparent baffle is installed at the bottom of the light-absorbing device. A vertical sleeve protruding upwards is provided at the top of the channel, corresponding to the position directly above the transparent base plate. The syringe is vertically positioned downwards, passing through the vertical sleeve and extending into the observation area. The light-absorbing device, transparent baffle, and piston rod are synchronously displaced components, capable of extending downwards outside the syringe as the piston rod moves vertically, so that the transparent baffle is in close contact with the transparent base plate directly below; or, the displacement mechanism includes The system includes a radial magnet and a servo motor externally mounted on the top of the channel, and a rotating shaft, a swing arm, and an axial magnet built into the observation area. The radial magnet is driven by the servo motor and can rotate around the central axis, switching so that one end of its magnetic pole faces the axial magnet, either with the same or different magnetic poles. The axial magnet can be attracted to the lower end of the channel top wall by the magnetic force between it and the radial magnet. The swing arm is swung and suspended above the observation area via the rotating shaft. One end of the swing arm is equipped with the axial magnet, and the other end is equipped with the transparent baffle. The upper end of the transparent baffle is equipped with a light-absorbing device, which can switch to being closely attached to or separated from the transparent base plate directly below by the swing arm around the rotating shaft, depending on the attraction or separation between the axial magnet and the radial magnet.

2. The method for controlling particulate matter in flowing liquids according to claim 1, characterized in that: The test site environment is a natural water body, a container, or a sewage treatment plant.

3. The method for controlling particulate matter in flowing liquids according to claim 1, characterized in that: The radial magnet has a horizontal central axis and is positioned transversely at the center of the top of the channel. It is coaxially mounted on the output shaft of the servo motor. The axial magnet has a vertical central axis, and the swing arm is fixed to the outer circumference of the axial magnet through blades.

4. The method for controlling particulate matter in flowing liquids according to claim 1, characterized in that: The bottom of the channel is provided with a slot, and the transparent base plate is inserted into the slot and encapsulated at the bottom of the observation area.

5. The method for controlling particulate matter in flowing liquids according to claim 1 or 4, characterized in that: The transparent base plate is a glass slide.

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