An on-line monitoring device for alum concentration based on ultrasonic wave
By combining a non-contact high-frequency narrow-pulse ultrasonic sensor probe with a contact turbidimeter probe, multi-angle, dead-zone-free monitoring of alum concentration is achieved, solving the problems of external influence and decreased accuracy of existing equipment and improving monitoring results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU WATER QUALITY TESTING CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-14
AI Technical Summary
Existing online monitoring equipment for alum concentration is easily affected by external factors such as temperature, and the accuracy of a single monitoring probe decreases after prolonged use, resulting in poor monitoring results.
An online monitoring device for alum floc concentration based on ultrasound is adopted, which combines a non-contact high-frequency narrow-pulse ultrasonic sensor probe with a contact turbidimeter probe. By transmitting ultrasonic signals through the air medium and detecting infrared light, multi-angle monitoring without dead zones is achieved.
This improved the accuracy and comprehensiveness of alum concentration monitoring, ensuring the precision and coverage of monitoring results.
Smart Images

Figure CN224500528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of online monitoring technology for alum flower concentration, specifically an online monitoring device for alum flower concentration based on ultrasound. Background Technology
[0002] Sedimentation tanks are a common water treatment facility. Their function is to remove suspended solids and pollutants from water through natural sedimentation. Floc concentration usually refers to the density of flocs or the concentration of suspended solids formed in wastewater treatment. Its typical characteristics are flocs with a diameter of 0.5-3 mm, and the color varies from milky white to dark brown depending on the impurity content. In sedimentation tanks, a substance called floc is widely used. However, sometimes we find that the floc in the sedimentation tank does not seem to be as effective as expected and cannot achieve the ideal sedimentation effect.
[0003] Existing online monitoring structures for alum concentration typically operate in a non-contact manner. However, non-contact methods are easily affected by external factors such as temperature, and the accuracy of a single monitoring probe may decrease after prolonged use.
[0004] Therefore, it is particularly important to design an ultrasonic-based online monitoring device for alum floc concentration to overcome the above-mentioned technical defects and improve overall practicality. Utility Model Content
[0005] The purpose of this invention is to provide an online monitoring device for alum flower concentration based on ultrasound, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An ultrasonic-based online monitoring device for alum floc concentration includes a sedimentation tank. Side plates are fixed to the top of the sedimentation tank along its four sides. Fixed supports are installed on the top of the side plates on both the front and rear sides. A slide rail extending along the length direction is installed on the top of the fixed support on the front side, and a sliding seat is slidably connected to the outer side of the slide rail. A support crossbar extending along the length direction is installed on the top of the fixed support on the rear side. A transverse groove is formed inside the support crossbar. Drive pulleys are rotatably connected to both ends of the support crossbar. A drive belt connects the two sets of drive pulleys. A drive motor is installed on the left side of the top of the support crossbar. A movable seat is fixedly clamped on the outer side of the moving belt. A transverse sliding groove extends from the outer side of the movable seat and is connected to a connecting bracket. A monitoring top plate is fixed between the sliding seat and the connecting bracket. Multiple sets of equally spaced non-contact ultrasonic sensor probes are installed at the bottom of the monitoring top plate. Fixed uprights are installed at the middle position of the top of the side plates on both the left and right sides. A forward and reverse motor is installed at the top of the fixed upright. The output end of the forward and reverse motor passes through the interior of the fixed upright and is connected to a rotating screw. A screw sleeve is threaded onto the outer side of the rotating screw. A zigzag bracket extending to the inner wall of the sedimentation tank is installed on the outer side of the screw sleeve. A contact sensor probe is installed at the bottom of the zigzag bracket.
[0008] As a preferred embodiment of this utility model, a signal processing controller is provided on the outside of the sedimentation tank. The signal processing controller is connected to the drive motor and the forward and reverse motors by wires, and the connection is electrical. The signal processing controller is wirelessly connected to the central monitoring station via a local area network.
[0009] As a preferred embodiment of this utility model, the drive end of the drive motor passes through the interior of the support crossbar and is connected to the transmission pulley at the left end. Both sets of transmission pulleys are rotatably connected to both ends inside the support crossbar through bearing seats.
[0010] The above technical solution enables the drive motor to start, causing the transmission belt and pulley to rotate, which in turn drives the connecting bracket to move laterally. With the assistance of the slide rail and sliding seat, the monitoring top plate moves above the sedimentation tank. Multiple sets of non-contact ultrasonic sensor probes can perform monitoring, thus ensuring no blind spots in monitoring and accurate monitoring results.
[0011] As a preferred embodiment of this utility model, the non-contact ultrasonic sensing probe is a high-frequency narrow pulse probe, and a signal transmitter is provided on the non-contact ultrasonic sensing probe, wherein a signal receiver is provided on the signal processing controller.
[0012] Through the above technical solution, the values detected by the non-contact ultrasonic sensor probe are sent to the signal processing controller via the signal transmitter, and then received and processed by the signal receiver of the signal processing controller.
[0013] As a preferred embodiment of this utility model, the fixed upright is fixedly installed at the middle position of the top of the side plate by bolts, and both ends of the rotating screw are rotatably connected to the inside of the fixed upright through bearing seats. The inside of the fixed upright is provided with a slot for the screw sleeve to move up and down.
[0014] As a preferred embodiment of this utility model, the contact sensing probe is a turbidimeter probe, and a signal transmitter is provided on the contact sensing probe.
[0015] Through the above technical solution, the values detected by the contact sensor probe are sent to the signal processing controller via the signal transmitter, and then received and processed by the signal receiver of the signal processing controller.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. In this utility model, an online monitoring device for alum floc concentration based on ultrasound is provided. This device utilizes a non-contact ultrasonic sensor probe with a high-frequency narrow-pulse probe to perform non-contact detection on water based on the principle of transmitting ultrasonic signals through air or an insulating medium. The probe is fixed above the sedimentation tank, and the ultrasonic waves are projected onto the liquid surface through the air medium. The propagation characteristics of the sound waves in the alum floc suspension (such as attenuation and echo delay) are measured. Furthermore, the drive motor activates the transmission belt and pulley, causing the transmission belt to move laterally along the connecting bracket. With the assistance of the slide rail and sliding seat, the monitoring top plate moves above the sedimentation tank. Multiple sets of non-contact ultrasonic sensor probes can perform monitoring, ensuring comprehensive coverage and accurate results.
[0018] 2. In this utility model, an online monitoring device for alum floc concentration based on ultrasound is provided. Fixed uprights are set on both the left and right sides of the sedimentation tank. Under the action of forward and reverse motors, the rotating screw and the screw sleeve are threadedly engaged, causing the folding support to move downwards, ensuring that the contact sensing probe is inserted into the tank. The contact sensing probe adopts a turbidimeter probe, which emits infrared light through the water body and detects the concentration of alum floc suspended particles through a 90° scattering angle. The combination of contact and non-contact structures can greatly improve the monitoring effect of alum floc concentration. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a partial structural diagram of the present invention;
[0021] Figure 3 This is a diagram showing the internal structure of the fixed crossbar of this utility model;
[0022] Figure 4 This is a structural diagram of the fixed pole part of this utility model.
[0023] In the diagram: 1. Sedimentation tank; 2. Side plate; 3. Fixed bracket; 4. Slide rail; 401. Sliding seat; 5. Support crossbar; 501. Transverse chute; 502. Transmission pulley; 503. Transmission belt; 504. Drive motor; 505. Moving seat; 506. Connecting bracket; 6. Monitoring top plate; 7. Non-contact ultrasonic sensor probe; 8. Fixed pole; 801. Forward and reverse motor; 802. Rotating screw; 803. Screw sleeve; 804. Folding bracket; 9. Contact sensor probe. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.
[0026] For examples, please refer to Figure 1-4 This utility model provides a technical solution:
[0027] An ultrasonic-based online monitoring device for alum floc concentration includes a sedimentation tank 1. Side plates 2 are fixed to the top of the sedimentation tank 1 along all four sides. Fixed supports 3 are installed on the top of the side plates 2 on both the front and rear sides. A slide rail 4 extending along the length direction is installed on the top of the front fixed support 3, and a sliding seat 401 is slidably connected to the outer side of the slide rail 4. A support crossbar 5 extending along the length direction is installed on the top of the rear fixed support 3. A transverse groove 501 is formed inside the support crossbar 5, and both the left and right ends of the support crossbar 5 are rotatably connected to... A drive belt 503 is connected between two sets of drive pulleys 502. A drive motor 504 is installed on the left side of the top of the support crossbar 5. A movable seat 505 is fixedly clamped on the outside of the drive belt 503. A transverse sliding groove 501 extends from the outside of the movable seat 505 and is connected to a connecting bracket 506. A monitoring top plate 6 is fixed between the sliding seat 401 and the connecting bracket 506. Multiple sets of non-contact ultrasonic sensor probes 7 with the same spacing are installed at the bottom of the monitoring top plate 6. Fixed uprights 8 are installed at the middle position of the top of the side plates 2 on both the left and right sides.
[0028] The drive end of the drive motor 504 passes through the interior of the support crossbar 5 and is connected to the transmission pulley 502 at the left end. Both sets of transmission pulleys 502 are rotatably connected to both ends inside the support crossbar 5 through bearing seats. When the drive motor is started, the transmission belt and transmission pulleys rotate in coordination, thereby causing the transmission belt to drive the connecting bracket to move laterally. With the assistance of the slide rail and sliding seat, the monitoring top plate is driven to move above the sedimentation tank. Multiple sets of non-contact ultrasonic sensor probes can perform monitoring, thereby ensuring no blind spots in monitoring and accurate monitoring results. The non-contact ultrasonic sensor probe 7 adopts a high-frequency narrow pulse probe. A signal transmitter is set on the non-contact ultrasonic sensor probe 7, and a signal receiver is set on the signal processing controller. The values detected by the non-contact ultrasonic sensor probe are sent to the signal processing controller through the signal transmitter, and are received and processed by the signal receiver of the signal processing controller.
[0029] In this embodiment, a forward and reverse motor 801 is installed on the top of the fixed pole 8. The output end of the forward and reverse motor 801 passes through the interior of the fixed pole 8 and is connected to a rotating screw 802. A screw sleeve 803 is threaded onto the outer side of the rotating screw 802. A folding bracket 804 extending to the inner wall of the sedimentation tank 1 is installed on the outer side of the screw sleeve 803. A contact sensor probe 9 is installed at the bottom of the folding bracket 804.
[0030] A signal processing controller is installed on the outside of the sedimentation tank 1. The signal processing controller is connected to the drive motor 504 and the forward and reverse motor 801 by wires, and the connection is electrical. The signal processing controller is wirelessly connected to the main monitoring station via a local area network. The fixed pole 8 is fixedly installed at the middle position of the top of the side plate 2 by bolts. Both ends of the rotating screw 802 are rotatably connected to the inside of the fixed pole 8 through bearing seats. The inside of the fixed pole 8 has a slot for the screw sleeve 803 to move up and down. The contact sensor probe 9 is a turbidimeter probe and a signal transmitter is installed on the contact sensor probe 9.
[0031] The working process of this utility model is as follows: When the ultrasonic-based online monitoring device and structure for alum floc concentration designed in this scheme are in operation, the non-contact ultrasonic sensing probe 7, employing a high-frequency narrow-pulse probe, can perform non-contact detection on water based on the principle of transmitting ultrasonic signals through air or an isolated medium. The probe is fixed above the sedimentation tank, and the ultrasonic waves are projected onto the liquid surface through the air medium. The propagation characteristics of the sound waves in the alum floc suspension (such as attenuation and echo delay) are measured. Furthermore, the drive motor 504 starts, causing the transmission belt 503 and the transmission pulley 502 to rotate, thereby causing the transmission belt 503 to drive the connecting bracket 506 to move laterally. This movement occurs between the slide rail 4 and the sliding seat. With the assistance of 401, the monitoring top plate 6 is driven to move above the sedimentation tank 1. Multiple sets of non-contact ultrasonic sensor probes 7 can perform monitoring, thus ensuring no blind spots in monitoring and accurate monitoring results. Fixed uprights 8 are set on both the left and right sides of the sedimentation tank 1. Under the action of the forward and reverse motors 801, the rotating screw 802 is driven to engage with the screw sleeve 803, causing the folding support 804 to move downward, ensuring that the contact sensor probe 9 is inserted into the tank. The contact sensor probe 9 uses a turbidimeter probe, which emits infrared light through the water body and detects the concentration of alum floc suspended particles through a 90° scattering angle. The combination of contact and non-contact structures can greatly improve the monitoring effect of alum floc concentration.
[0032] The signal processing controller, drive motor, and forward / reverse motor used in this utility model are all existing known electrical devices, and can all be purchased and used directly on the market. Their structure, circuit, and control principle are all existing known technologies. Therefore, the structure, circuit, and control principle of the signal processing controller, drive motor, and forward / reverse motor will not be described in detail here.
[0033] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An online monitoring device for floc concentration based on ultrasound, comprising a sedimentation tank (1), characterized in that: The sedimentation tank (1) has side plates (2) fixed to its top and along its four sides. Fixed brackets (3) are installed on the top of the side plates (2) on both the front and rear sides. A slide rail (4) extending along the length direction is installed on the top of the fixed bracket (3) on the front side. A sliding seat (401) is slidably connected to the outside of the slide rail (4). A support crossbar (5) extending along the length direction is installed on the top of the fixed bracket (3) on the rear side. A transverse groove (501) is opened inside the support crossbar (5). Drive pulleys (502) are rotatably connected to both the left and right ends of the support crossbar (5). A drive belt (503) is connected between the two sets of drive pulleys (502). A drive motor (504) is installed on the left side of the top of the support crossbar (5). A movable seat (505) is fixedly clamped to the outside of the drive belt (503). A transverse sliding groove (501) extends from the outside of (505) and is connected to a connecting bracket (506). A monitoring top plate (6) is fixed between the sliding seat (401) and the connecting bracket (506). Multiple sets of non-contact ultrasonic sensor probes (7) with the same spacing are installed at the bottom of the monitoring top plate (6). Fixed poles (8) are installed at the middle position of the top of the side plates (2) on both the left and right sides. A forward and reverse motor (801) is installed at the top of the fixed pole (8). The output end of the forward and reverse motor (801) passes through the interior of the fixed pole (8) and is connected to a rotating screw (802). A screw sleeve (803) is threaded on the outside of the rotating screw (802). A folding bracket (804) extending to the inner wall of the sedimentation tank (1) is installed on the outside of the screw sleeve (803). A contact sensor probe (9) is installed at the bottom of the folding bracket (804).
2. The ultrasonic-based online monitoring device for alum floc concentration according to claim 1, characterized in that: A signal processing controller is provided on the outside of the sedimentation tank (1). The signal processing controller is connected to the drive motor (504) and the forward and reverse motor (801) by wires, and the connection is electrical. The signal processing controller is wirelessly connected to the main monitoring station via a local area network.
3. The ultrasonic-based online monitoring device for alum floc concentration according to claim 2, characterized in that: The drive end of the drive motor (504) passes through the interior of the support crossbar (5) and is connected to the transmission pulley (502) at the left end. Both sets of transmission pulleys (502) are rotatably connected to both ends inside the support crossbar (5) through bearing seats.
4. The ultrasonic-based online monitoring device for alum floc concentration according to claim 2, characterized in that: The non-contact ultrasonic sensor probe (7) is a high-frequency narrow pulse probe. The non-contact ultrasonic sensor probe (7) is equipped with a signal transmitter and a signal receiver on the signal processing controller.
5. The ultrasonic-based online monitoring device for alum floc concentration according to claim 2, characterized in that: The fixed pole (8) is fixedly installed at the middle position of the top of the side plate (2) by bolts. Both ends of the rotating screw (802) are rotatably connected to the inside of the fixed pole (8) through bearing seats. The inside of the fixed pole (8) is provided with a slot for the screw sleeve (803) to move up and down.
6. The ultrasonic-based online monitoring device for alum floc concentration according to claim 2, characterized in that: The contact sensing probe (9) is a turbidimeter probe, and a signal transmitter is provided on the contact sensing probe (9).