Water quality monitoring equipment for water resource environmental protection

By designing automated lifting and cleaning components, the problem of sensor contamination in traditional water quality monitoring equipment is solved, automatic cleaning of sensors and monitoring accuracy are achieved, and manual maintenance costs are reduced.

CN120629522AInactive Publication Date: 2025-09-12滦平县抗旱服务中心站
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Patent Information

Application Number
CN202510832697.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2025-09-12
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the use of traditional water quality monitoring equipment, the sensors are easily contaminated by water debris, resulting in inaccurate monitoring results and time-consuming and labor-intensive manual cleaning.

Method used

A water quality monitoring device for water resources and environmental protection was designed. It adopts a double-layer sealing structure and is equipped with a lifting component and a cleaning component. The sensor is automatically cleaned by a circular rotating brush and a micro nozzle, and the filter component is combined to preliminarily filter impurities. The drive component and control component are used to achieve automatic cleaning.

Benefits of technology

It realizes automatic cleaning of sensors, improves monitoring accuracy, reduces manual maintenance time, reduces maintenance costs, and improves cleaning efficiency.

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Abstract

The invention discloses water quality monitoring equipment for water resource environmental protection, and belongs to the technical field of monitoring equipment. The water quality monitoring equipment for water resource environmental protection comprises a shell, the bottom and the top are open, a detection module is arranged in the shell and comprises a bearing column, a pH sensor, a dissolved oxygen sensor and a turbidity sensor, a lifting assembly is arranged in an interlayer of the shell, the lifting end of the lifting assembly is fixedly connected with a bearing table, and a cleaning assembly is arranged at the top of the shell. The cleaning assembly comprises an annular rotating brush, a micro spray head and a cleaning liquid storage tank, a driving assembly is arranged on the outer side of the shell and used for driving the annular rotating brush to rotate, the outer diameter of the bearing column is smaller than the inner diameter of the annular rotating brush, and a water body is monitored in real time through the detection module; and the driving assembly drives the annular rotating brush to rotate and is matched with the micro spray head to clean the surface of the detection module, so that the influence of impurities attached to the detection module on the detection work of the detection module is avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of monitoring equipment, and in particular to a water quality monitoring device for water resources and environmental protection. Background Art

[0002] Water quality monitoring is the process of monitoring and measuring the types, concentrations, and changing trends of pollutants in water bodies to evaluate water quality. The main monitoring items can be divided into two categories: comprehensive indicators reflecting water quality, and the other is the presence of toxic substances. In addition to the aforementioned monitoring items, flow velocity and flow rate measurements are sometimes required to objectively evaluate water quality.

[0003] When monitoring, traditional monitoring equipment uses a floating plate to carry the integrated sensor, and uses the integrated sensor to monitor the water body in real time. However, as the monitoring time goes by, the debris in the water body will adhere to the monitoring probe of the sensor, causing the sensor to be contaminated and affecting the monitoring results. When cleaning the sensors in the monitoring equipment, it is necessary to remove the entire equipment and clean it manually, but manual cleaning takes a lot of time. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problems in the prior art and provide a water quality monitoring device for water resources and environmental protection, so as to clean the detection module in time and improve the accuracy of the detection module.

[0005] The present invention provides a water resource environmental protection water quality monitoring device, including a shell configured as a double-layer sealing structure, with both the bottom and the top being open, a detection module being provided in the shell, the detection module comprising a bearing column, a pH sensor, a dissolved oxygen sensor and a turbidity sensor, the bearing plate being configured as a cylindrical shape, the pH sensor, the dissolved oxygen sensor and the turbidity sensor being uniformly arranged on the bearing column in a circumferential direction, a lifting assembly being provided in the shell interlayer, the lifting end of the lifting assembly being fixedly connected to the bearing column, a cleaning assembly being provided on the top of the shell, the cleaning assembly comprising an annular rotating brush, a micro nozzle and a cleaning liquid The annular rotating brush is rotatably connected to the top of the shell through a ball bearing, a plurality of micro nozzles are provided, and the plurality of micro nozzles are evenly circumferentially arranged on the top of the annular rotating brush. The plurality of micro nozzles are all inclined and the nozzles are facing the center of the annular rotating brush. The cleaning liquid storage tank is fixedly provided on the annular rotating brush, and the annular rotating brush is provided with an inner cavity. The bottom of the cleaning liquid storage tank is connected to the inner cavity through an infusion tube, and the plurality of micro nozzles are connected to the inner cavity. A driving assembly is provided on the outside of the shell for driving the annular rotating brush to rotate, and the outer diameter of the supporting column is smaller than the inner diameter of the annular rotating brush.

[0006] Preferably, a filter assembly is provided at the bottom of the shell, and the filter assembly includes a filter screen, a connecting sleeve, a high-pressure nozzle and a pump body. The connecting sleeve is vertically arranged and threadedly connected to the bottom of the shell, the filter screen is fixedly arranged at the bottom of the connecting sleeve, a number of high-pressure nozzles are provided, and the several high-pressure nozzles are arranged obliquely in a circular manner at the bottom of the filter screen. A bearing ring is fixedly provided on the shell, and the pump body is fixedly provided on the bearing ring. The bearing ring is hollow inside, and a number of delivery pipes are circumferentially arranged at the bottom of the bearing ring. The several delivery pipes are arranged in a one-to-one correspondence with the several high-pressure nozzles.

[0007] Preferably, the lifting assembly includes a first motor, a rotating screw, a connecting rod and a guide rail, the first motor is vertically arranged in the interlayer, the first motor is fixedly connected to the rotating screw, the bottom of the rotating screw is rotatably connected to the shell, the connecting rod is horizontally arranged and threadedly sleeved on the rotating screw, the guide rail is vertically arranged and fixedly connected to the shell, one end of the connecting rod is slidably connected to the guide rail, and the other end is fixedly connected to a side of the supporting column that passes through the interlayer.

[0008] Preferably, the driving assembly includes a second motor, a transmission gear and a ring gear, a supporting plate is horizontally fixedly connected to the outside of the shell, the second motor is vertically fixedly connected to the supporting plate, the output shaft of the second motor is fixedly connected to the transmission gear, and the ring gear is fixedly sleeved on the annular rotating brush and meshes with the transmission gear.

[0009] Preferably, a control component is provided on the outside of the shell, and the control component includes: a timer, a wireless unit and a controller. The timer is electrically connected to the controller, the controller is electrically connected to the first motor, and the controller is electrically connected to the second motor. The timer is used to limit the time. When the predetermined time is reached, the controller will control the first motor to rotate to move the supporting column upward so that it is located in the annular rotating brush, and control the second motor to rotate so that the annular rotating brush rotates to clean the detection module on the supporting column.

[0010] Preferably, the nozzle direction of the micro nozzle forms an angle of 30 to 45 degrees with the normal line of the surface of the supporting column.

[0011] Preferably, a pair of floats are horizontally welded to the outside of the shell, and an independent air chamber is provided inside the float. The air chamber is connected to an air pressure regulating valve through an air pipe, and the air pressure regulating valve is embedded in the side wall of the shell.

[0012] Preferably, a heat dissipation grille is provided on the shell, the opening direction of the heat dissipation grille is consistent with the direction of water flow, and a waterproof and breathable membrane is provided on the inner side of the grille.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: a water resource environmental protection water quality monitoring device of the present invention, under normal circumstances the detection module is located in the water body, after a period of time, the debris in the water body will adhere to the detection module and block the detection module, which will have a certain impact on the monitoring accuracy of the detection module, at this time the detection module is lifted above the water surface by the lifting component, and the supporting column is located between the annular rotating brushes, at this time the annular rotating brush is driven by the driving component to rotate, and cooperates with the inclined micro-sprinkler to comprehensively clean the pH sensor, dissolved oxygen sensor and turbidity sensor detection end on the supporting column, after cleaning is completed, the detection module is lowered back into the water body by the lifting component to monitor the water body in real time, it is convenient and quick to use, and the cleaning of the detection module can be completed without the staff taking the entire device out of the water body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall first-perspective structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall second viewing angle structure of the present invention.

[0016] Figure 3 It is a schematic structural diagram of the cleaning component of the present invention.

[0017] Figure 4 It is a schematic structural diagram of the lifting assembly of the present invention.

[0018] Figure 5 It is a schematic diagram of the connection structure of the connecting rod and the detection module of the present invention.

[0019] Explanation of the accompanying drawings: 1. Shell; 2. Detection module; 3. Lifting assembly; 31. First motor; 32. Rotating screw; 33. Connecting rod; 34. Guide rail; 4. Driving assembly; 41. Second motor; 42. Transmission gear; 43. Ring gear; 5. Cleaning assembly; 51. Ring rotating brush; 52. Micro nozzle; 53. Cleaning liquid storage tank; 6. Filter assembly; 61. Filter screen; 62. Connecting sleeve; 63. High-pressure nozzle; 64. Pump body; 7. Control assembly; 71. Timer; 72. Wireless unit; 73. Controller; 8. Float; 9. Air pipe; 10. Air pressure regulating valve; 11. Heat dissipation grille. DETAILED DESCRIPTION

[0020] The following is combined with Figures 1 to 5In order to make the purpose, 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 drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the common meanings understood by people with ordinary skills in the field to which the present invention belongs.

[0021] The words "first", "second" and similar words used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects. "Inside", "outside", "upper", "lower", "far", "near", "front", "back" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in the present invention are not drawn strictly according to the actual scale. The specific size and quantity of each structure can be determined according to actual needs. The drawings described in the present invention are only structural schematic diagrams.

[0022] The present invention provides a water quality monitoring device for water resources environmental protection, such as Figures 1 to 5 As shown, the shell 1 is set as a double-layer sealing structure, and the bottom and the top are both opened. A detection module 2 is set in the shell 1, and the detection module 2 includes a bearing column, a pH sensor, a dissolved oxygen sensor and a turbidity sensor. The bearing plate is set to a cylindrical shape, and the pH sensor, the dissolved oxygen sensor and the turbidity sensor are evenly arranged on the bearing column in the circumferential direction. A lifting component 3 is set in the interlayer of the shell 1, and the lifting end of the lifting component 3 is fixedly connected to the bearing column. A cleaning component 5 is set on the top of the shell 1, and the cleaning component 5 includes an annular rotating brush 51, a micro nozzle 52 and a cleaning liquid storage tank 53. The annular rotating brush 5 1 is rotatably connected to the top of the housing 1 via a ball bearing. A plurality of micro-sprayers 52 are provided. The micro-sprayers 52 are evenly arranged circumferentially on the top of the annular rotating brush 51. The micro-sprayers 52 are all inclined and their nozzles are oriented toward the center of the annular rotating brush 51. A cleaning liquid storage tank 53 is fixedly mounted on the annular rotating brush 51. The annular rotating brush 51 has an inner cavity. The bottom of the cleaning liquid storage tank 53 is connected to the inner cavity of the infusion tube. The micro-sprayers 52 are all connected to the inner cavity. A driving assembly 4 is provided on the outside of the housing 1 for driving the annular rotating brush 51 to rotate. The outer diameter of the bearing column is smaller than the inner diameter of the annular rotating brush 51.

[0023] Under normal circumstances, the detection module 2 is located in the water body. After a period of time, the debris in the water body will adhere to the detection module 2 and block the detection module 2, which will have a certain impact on the detection accuracy of the detection module 2. At this time, the detection module 2 is lifted above the water surface by the lifting component 3, and the supporting column is located between the annular rotating brushes 51. At this time, the annular rotating brush 51 is driven by the driving component 4 to rotate, and cooperates with the inclined micro-sprinkler 52 to comprehensively clean the pH sensor, dissolved oxygen sensor and turbidity sensor detection end on the supporting column. After cleaning, the detection module 2 is lowered into the water body again through the lifting component 3 to monitor the water body in real time. It is convenient and quick to use, and the staff does not need to remove the entire device from the water body to complete the cleaning of the detection module 2.

[0024] Preferably, Figures 1 and 2 As shown, a filter assembly 6 is provided at the bottom of the shell 1, and the filter assembly 6 includes a filter screen 61, a connecting sleeve 62, a high-pressure nozzle 63 and a pump body 64. The connecting sleeve is vertically arranged and threadedly connected to the bottom of the shell 1, the filter screen 61 is fixedly arranged at the bottom of the connecting sleeve 62, a number of high-pressure nozzles 63 are provided, and the several high-pressure nozzles 63 are obliquely arranged in a circular manner at the bottom of the filter screen 61. A bearing ring is fixedly provided on the shell 1, and the pump body 64 is fixedly provided on the bearing ring. The interior of the bearing ring is hollow, and a number of delivery pipes are circumferentially arranged at the bottom of the bearing ring. The several delivery pipes are arranged in a one-to-one correspondence with the several high-pressure nozzles 63.

[0025] In this embodiment, a filter assembly 6 is provided at the bottom of the shell 1 to perform preliminary filtration of impurities in the water body. The connecting sleeve 62 is screwed to the shell 1 for easy disassembly and timely disassembly of the filter screen 61 to prevent debris from accumulating on the filter screen 61 and clogging the filter screen 61. A high-pressure nozzle 63 is provided at the filter screen 61, and the pump body 64 can directly draw water from the water body and then transport the water to the high-pressure nozzle 63, thereby extending the clogging period of the filter screen 61 to 120 days.

[0026] Preferably, Figures 1 to 4 As shown, the lifting assembly 3 includes a first motor 31, a rotating screw rod 32, a connecting rod 33 and a guide rail 34. The first motor 31 is vertically arranged in the interlayer, the first motor 31 is fixedly connected to the rotating screw rod 32, the bottom of the rotating screw rod 32 is rotatably connected to the shell 1, the connecting rod 33 is horizontally arranged and threadedly sleeved on the rotating screw rod 32, the guide rail 34 is vertically arranged and fixedly connected to the shell 1, one end of the connecting rod 33 is slidably connected to the guide rail 34, and the other end is fixedly connected to the side of the supporting column that passes through the interlayer.

[0027] In this embodiment, the lifting assembly 3 is used to lift or lower the supporting column. There is a distance between the guide rail 34 and the rotating screw 32 to avoid lifting and lowering deviation. The first motor 31 drives the rotating screw 32 to rotate, so that the connecting rod 33 moves up or down in the vertical direction under the limitation of the guide rail 34, thereby moving the supporting column connected thereto in the vertical direction.

[0028] Preferably, Figures 1 to 3 As shown, the driving assembly 4 includes a second motor 41, a transmission gear 42 and a ring gear 43. A supporting plate is horizontally fixedly connected to the outside of the shell 1, and the second motor 41 is vertically fixedly connected to the supporting plate. The output shaft of the second motor 41 is fixedly connected to the transmission gear 42, and the ring gear 43 is fixedly sleeved on the annular rotating brush 51 and meshes with the transmission gear 42.

[0029] In this embodiment, the second motor 41 drives the transmission gear 42 to rotate, and the transmission gear 42 engages with the ring gear 43, and drives the annular rotating brush 51 to rotate through the ring gear 43, and works together with the tilted micro nozzle 52 to clean the detection module 2.

[0030] Preferably, Figures 1 to 4 As shown, a control component 7 is provided on the outside of the shell 1, and the control component 7 includes: a timer 71, a wireless unit 72 and a controller 73. The timer 71 is electrically connected to the controller 73, the controller 73 is electrically connected to the first motor 31, and the controller 73 is electrically connected to the second motor 41. The timer 71 is used to limit the time. When the predetermined time is reached, the controller 73 will control the first motor 31 to rotate to move the supporting column upward so that it is located in the annular rotating brush 51, and control the second motor 41 to rotate, so that the annular rotating brush 51 rotates to clean the detection module 2 on the supporting column.

[0031] In this embodiment, a timer 71 is set to set the timing, and a signal is transmitted to the controller 73 every 6 hours. The controller 73 controls the first motor 31 and the second motor 41 to rotate, so as to clean the pH sensor, dissolved oxygen sensor and turbidity sensor on the supporting column. The annular rotating brush 51 and the tilted micro nozzle 52 work together to improve the cleaning efficiency by 50%. LoRa wireless transmission supports 5km remote monitoring, which comprehensively reduces the manual maintenance cost by 70%.

[0032] Preferably, Figures 1 to 3 As shown, the nozzle direction of the micro nozzle 52 forms an angle of 30 to 45 degrees with the normal line of the surface of the supporting column.

[0033] In this embodiment, the micro nozzle 52 sprays at an angle of 30 to 45 degrees to penetrate the electrode gaps of the detection module 2, thereby improving the surface cleaning rate of the detection module 2.

[0034] Preferably, Figure 1 As shown, a pair of floats 8 are horizontally welded to the outside of the shell 1 , and an independent air chamber is provided inside the float 8 . The air chamber is connected to an air pressure regulating valve 10 through an air pipe 9 , and the air pressure regulating valve 10 is embedded in the side wall of the shell 1 .

[0035] In this embodiment, the air chamber of the float 8 has an independent adjustment function, which enables the device to be stably suspended in waters with a flow rate of 0.5-3m / s, with an inclination angle of ≤5°, ensuring that the measurement data is not affected by the shaking of the device.

[0036] Preferably, Figure 1 As shown, a heat dissipation grille 11 is provided on the housing 1 , the opening direction of the heat dissipation grille 11 is consistent with the direction of water flow, and a waterproof and breathable membrane is provided on the inner side of the grille.

[0037] In this embodiment, the directional heat dissipation grille 11 and the breathable membrane work together to reduce the temperature rise inside the device to ≤5° C., thereby preventing sensor drift caused by high temperature.

[0038] The method of using the water quality monitoring device for water resource environmental protection of the present invention is as follows:

[0039] The float 8 is filled with gas, and the float 8 and the housing 1 are placed in the water body to be monitored, and the supporting column, pH sensor, dissolved oxygen sensor and turbidity sensor are located in the water body. When the time set by the timer 71 is reached, a signal is transmitted to the controller 73, and the controller 73 controls the first motor 31 and the second motor 41 to rotate;

[0040] The controller 73 controls the first motor 31 to rotate, and the first motor 31 drives the rotating screw 32 to rotate, so that the connecting rod 33 moves upward in the vertical direction under the limit of the guide rail 34, thereby lifting the supporting column connected thereto to coincide with the center of the annular rotating brush 51;

[0041] The controller 73 simultaneously controls the second motor 41 to rotate, and the second motor 41 drives the transmission gear 42 to rotate. The transmission gear 42 engages with the ring gear 43, and drives the annular rotating brush 51 to rotate through the ring gear 43, and works together with the tilted micro nozzle 52 to clean the detection module 2 to ensure the accuracy of the monitoring data.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A water quality monitoring device for water resources and environmental protection, characterized by: include: The housing (1) is configured as a double-layer sealing structure, with both the bottom and the top being open; A detection module (2) comprises a supporting column, a pH sensor, a dissolved oxygen sensor and a turbidity sensor, wherein the supporting plate is arranged in a cylindrical shape, and the pH sensor, the dissolved oxygen sensor and the turbidity sensor are evenly arranged on the supporting column in a circumferential direction; A lifting assembly (3) is arranged in the interlayer of the shell (1), and a lifting end of the lifting assembly (3) is fixedly connected to the bearing column; A cleaning assembly (5) comprises an annular rotating brush (51), a micro nozzle (52) and a cleaning liquid storage tank (53), wherein the annular rotating brush (51) is rotatably connected to the top of the housing (1) via a ball bearing, a plurality of micro nozzles (52) are provided, and the plurality of micro nozzles (52) are evenly circumferentially arranged on the top of the annular rotating brush (51), and the plurality of micro nozzles (52) are all inclined and their nozzles are oriented toward the center of the annular rotating brush (51), and the cleaning liquid storage tank (53) is fixedly provided on the annular rotating brush (51), and the annular rotating brush (51) is provided with an inner cavity, and the bottom of the cleaning liquid storage tank (53) is connected to the inner cavity via a liquid infusion tube, and the plurality of micro nozzles (52) are all connected to the inner cavity; A driving assembly (4) is arranged outside the housing (1) and is used to drive the annular rotating brush (51) to rotate. The outer diameter of the supporting column is smaller than the inner diameter of the annular rotating brush (51).

2. A water quality monitoring device for water resources and environmental protection according to claim 1, characterized in that: The bottom of the housing (1) is provided with a filter assembly (6), the filter assembly (6) comprising a filter screen (61), a connecting sleeve (62), a high-pressure nozzle (63) and a pump body (64), the connecting sleeve being vertically arranged and threadedly connected to the bottom of the housing (1), the filter screen (61) being fixedly arranged at the bottom of the connecting sleeve (62), a plurality of high-pressure nozzles (63) being provided, and the plurality of high-pressure nozzles (63) being obliquely arranged in a circular pattern at the bottom of the filter screen (61), a bearing ring being fixedly provided on the housing (1), the pump body (64) being fixedly provided on the bearing ring, the bearing ring being hollow in its interior, a plurality of delivery pipes being circumferentially arranged at the bottom of the bearing ring, and the plurality of delivery pipes being arranged in a one-to-one correspondence with the plurality of high-pressure nozzles (63).

3. The water quality monitoring device for water resources and environmental protection according to claim 1 is characterized in that: The lifting assembly (3) includes a first motor (31), a rotating screw rod (32), a connecting rod (33) and a guide rail (34), wherein the first motor (31) is vertically arranged in the interlayer, the first motor (31) is fixedly connected to the rotating screw rod (32), the bottom of the rotating screw rod (32) is rotatably connected to the shell (1), the connecting rod (33) is horizontally arranged and threadedly sleeved on the rotating screw rod (32), the guide rail (34) is vertically arranged and fixedly connected to the shell (1), one end of the connecting rod (33) is slidably connected to the guide rail (34), and the other end is fixedly connected to a side of the supporting column that passes through the interlayer.

4. A water quality monitoring device for water resources and environmental protection as claimed in claim 3, characterized in that: The driving assembly (4) comprises a second motor (41), a transmission gear (42) and a ring gear (43); a supporting plate is horizontally fixedly connected to the outside of the housing (1); the second motor (41) is vertically fixedly connected to the supporting plate; an output shaft of the second motor (41) is fixedly connected to the transmission gear (42); and the ring gear (43) is fixedly sleeved on the annular rotating brush (51) and meshes with the transmission gear (42).

5. A water quality monitoring device for water resources and environmental protection as claimed in claim 4, characterized in that: A control component (7) is provided on the outside of the housing (1), and the control component (7) includes: a timer (71), a wireless unit (72) and a controller (73). The timer (71) is electrically connected to the controller (73), the controller (73) is electrically connected to the first motor (31), and the controller (73) is electrically connected to the second motor (41). The timer (71) is used to limit time. When the predetermined time is reached, the controller (73) controls the first motor (31) to rotate to move the bearing column upward so that it is located in the annular rotating brush (51), and controls the second motor (41) to rotate so that the annular rotating brush (51) rotates to clean the detection module (2) on the bearing column.

6. The water quality monitoring device for water resources and environmental protection according to claim 1 is characterized in that: The nozzle direction of the micro nozzle (52) forms an angle of 30 to 45 degrees with the normal line of the surface of the supporting column.

7. The water quality monitoring device for water resource environmental protection according to claim 1 is characterized in that: A pair of floats (8) are horizontally welded to the outside of the shell (1), and an independent air chamber is provided inside the float (8). The air chamber is connected to an air pressure regulating valve (10) through an air pipe (9), and the air pressure regulating valve (10) is embedded in the side wall of the shell (1).

8. The water quality monitoring device for water resources and environmental protection according to claim 1 is characterized in that: A heat dissipation grille (11) is provided on the housing (1), the opening direction of the heat dissipation grille (11) is consistent with the direction of water flow, and a waterproof and breathable membrane is provided on the inner side of the heat dissipation grille (11).

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