Dynamic monitoring device for nutritive salt concentration in river and lake water system communication

Abstract

The utility model provides a nutritive salt concentration dynamic monitoring device in river and lake water system communication, which comprises a box body, the bottom of the box body is provided with an opening, the inner top of the box body is provided with a winding mechanism and a control box, an in-situ liquid nutritive salt on-line analyzer is arranged below the winding mechanism, and the in-situ liquid nutritive salt on-line analyzer is arranged below the control box. The top end of the in-situ liquid nutritive salt online analyzer is connected with the winding mechanism through a pull rope; a coding mechanism arranged on the outer side of the pull rope in a sleeving mode is arranged in the box body, the coding mechanism is provided with a guide wheel connected with the pull rope in a matched mode, and the guide wheel is in transmission connection with a coder. The encoder, the in-situ liquid nutritive salt online analyzer and the winding mechanism are electrically connected with the control box; according to the utility model, the concentration of nutritive salt at different depths can be monitored periodically, meanwhile, the external abrasion can be reduced, and the longer service life can be ensured.

Description

Technical Field

[0001] This utility model belongs to the field of hydrological monitoring technology, specifically relating to a dynamic monitoring device for nutrient concentration in interconnected river and lake systems. Background Technology

[0002] In recent years, with the rapid advancement of industrialization and agriculture, eutrophication of water has become an increasingly serious problem, posing a major challenge to water environment supervision. The excessive accumulation of nutrients such as nitrogen and phosphorus in water bodies not only disrupts the aquatic ecological balance but also poses a serious threat to human health and the sustainable use of water resources. Therefore, eutrophication monitoring has become an important means of protecting the water environment and maintaining ecological balance.

[0003] Traditional methods for monitoring nutrients in aquatic systems often require on-site sampling and subsequent laboratory analysis. This process is not only time-consuming and labor-intensive, but may also lead to data distortion due to sample transportation and preservation.

[0004] In the prior art, Chinese utility model patent document with authorization announcement number CN208999401U discloses an in-situ liquid nutrient online analyzer, which can be immersed in water to monitor the concentration of nutrients. However, its immersion depth is usually fixed and cannot periodically monitor the concentration of nutrients at different depths. Furthermore, when the in-situ liquid nutrient online analyzer is immersed in water for a long time, the impurities in the water will rub against its outer surface under the drive of the water flow, which will accelerate its external wear and affect its service life.

[0005] Therefore, it is necessary to design a dynamic nutrient concentration monitoring device for river and lake water system connections that can periodically monitor nutrient concentration at different depths, while reducing external wear and ensuring a long service life, in order to solve the current technical problems. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, this utility model provides a dynamic monitoring device for nutrient concentration in river and lake water system connections that can periodically monitor the nutrient concentration at different depths, while reducing external wear and ensuring a long service life.

[0007] The technical solution of this utility model is as follows: a dynamic monitoring device for nutrient concentration in river and lake water systems, comprising a housing with an opening at the bottom, a winding mechanism and a control box at the top inside the housing, an in-situ liquid nutrient online analyzer below the winding mechanism, and the top of the in-situ liquid nutrient online analyzer connected to the winding mechanism via a pull rope; an encoding mechanism fitted onto the outside of the pull rope is provided inside the housing, the encoding mechanism having a guide wheel that cooperates with the pull rope, and an encoder being drivenly connected to the guide wheel; the encoder, the in-situ liquid nutrient online analyzer, and the winding mechanism are all electrically connected to the control box.

[0008] The winding mechanism has a rotating shaft rotatably mounted on the top of the housing. One end of the rotating shaft is equipped with a winding motor that drives its rotation. A winding roller is fixedly mounted on the outside of the rotating shaft. One end of the pull rope is connected to the winding roller.

[0009] Both ends of the rotating shaft are rotatably provided with bearing seats, and the bearing seats are fixedly connected to the inner top of the box.

[0010] The encoding mechanism has a support rod fixedly installed inside the housing. The two ends of the support rod are fixedly connected to the two sides of the inside of the housing, respectively. The guide wheel is rotatably mounted on the support rod. The encoder is fixedly mounted on one side of the support rod and is connected to the guide wheel for transmission.

[0011] A cleaning mechanism is provided inside the box below the coding mechanism. The cleaning mechanism has a first arc plate and a second arc plate fixedly mounted inside the box. The first arc plate and the second arc plate are fitted on the outside of the pull rope. The inner sides of the first arc plate and the second arc plate are provided with bristles for cleaning the outside of the pull rope.

[0012] A cleaning support plate is fixedly installed inside the box. One end of the cleaning support plate has a mounting hole that matches the first arc plate and the second arc plate. The first arc plate and the second arc plate are detachably assembled and fixed inside the mounting hole by bolts.

[0013] A ventilation duct connected to the interior is provided on one side of the bottom of the housing, and a fan is installed inside the ventilation duct.

[0014] A door panel is provided on one side of the box, and louvers are provided on the upper part of the door panel.

[0015] A bottom cover is provided at the bottom opening of the box body. One side of the bottom cover is hinged to the bottom of the box body. An electric actuator is hinged to one side of the box body. The end of the electric actuator is hinged to one side of the bottom cover.

[0016] The beneficial effects of this utility model are:

[0017] (1) In this utility model, the pull rope is released by the winding mechanism, which can lower the in-situ liquid nutrient online analyzer and immerse it in the river and lake water to monitor the concentration of nutrients. During the release of the pull rope, the guide wheel is driven to rotate, the encoder encodes the guide wheel, and the descent depth of the pull rope is detected, which can monitor the position of the in-situ liquid nutrient online analyzer at different depths in the river and lake water.

[0018] (2) The winding mechanism periodically lowers the in-situ liquid nutrient online analyzer to different depths in the river and lake water to monitor the concentration of nutrients. After the monitoring is completed, it can be lifted into the interior of the box by the winding mechanism to avoid the in-situ liquid nutrient online analyzer being submerged in water for a long time and being worn by debris in the water, thus ensuring its long service life. Attached Figure Description

[0019] Figure 1 This is one of the structural schematic diagrams of the dynamic nutrient concentration monitoring device in the interconnection of river and lake systems of this utility model.

[0020] Figure 2 This is the second schematic diagram of the dynamic monitoring device for nutrient concentration in the interconnected river and lake systems of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the dynamic nutrient concentration monitoring device in the river and lake water system of this utility model. Detailed Implementation

[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0023] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" 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.

[0024] like Figures 1 to 3 As shown, the dynamic monitoring device for nutrient concentration in the interconnected river and lake system includes a housing 1 with an opening at the bottom. A winding mechanism 6 and a control box 7 are installed inside the top of the housing 1. An in-situ liquid nutrient online analyzer 4 is installed below the winding mechanism 6, and its top is connected to the winding mechanism 6 via a pull rope 41. Inside the housing 1, an encoding mechanism 8 is fitted around the pull rope 41. The encoding mechanism 8 has a guide wheel 82 that connects to the pull rope 41, and an encoder 83 is driven onto the guide wheel 82. The encoder 83, the in-situ liquid nutrient online analyzer 4, and the winding mechanism 6 are all electrically connected to the control box 7. In this embodiment, releasing the pull rope 41 via the winding mechanism 6 allows the in-situ liquid nutrient online analyzer 4 to be lowered and submerged in the river or lake water, achieving... For monitoring nutrient concentration, the pull rope 41 drives the guide wheel 82 to rotate during release. The encoder 83 encodes the guide wheel 82 and detects the descent depth of the pull rope 41, enabling monitoring at different depths in the river or lake water. The winding mechanism 6 periodically lowers the in-situ liquid nutrient online analyzer 4 to different depths in the river or lake water as needed to monitor nutrient concentration. After monitoring, the winding mechanism 6 can lift the analyzer 4 into the housing 1, preventing it from being submerged in water for extended periods and being worn by debris, thus ensuring a longer service life. The control box 7 contains a PLC controller, which is electrically connected to the winding mechanism 6, the encoder 83, and the in-situ liquid nutrient online analyzer 4.

[0025] In some embodiments, the winding mechanism 6 has a rotating shaft 62 rotatably disposed at the top of the housing 1. One end of the rotating shaft 62 is provided with a winding motor 63 that drives it to rotate. A winding roller 61 is fixedly mounted on the outer side of the rotating shaft 62. One end of the pull rope 41 is connected to the winding roller 61. The winding motor 63 drives the rotating shaft 62 to rotate the winding roller 61. When the winding roller 61 rotates, it winds up or releases the pull rope 41, thereby realizing the lifting or lowering of the in-situ liquid nutrient online analyzer 4.

[0026] In some embodiments, both ends of the rotating shaft 62 are rotatably provided with bearing seats 64, the bearing seats 64 are fixedly connected to the inner top of the housing 1, and the rotating shaft 62 is rotatably mounted inside the housing 1 through the bearing seats 64.

[0027] In some embodiments, the encoding mechanism 8 has a support rod 81 fixedly installed inside the housing 1. The two ends of the support rod 81 are fixedly connected to the two sides of the inside of the housing 1, respectively. The guide wheel 82 is rotatably installed on the support rod 81. The encoder 83 is fixedly installed on one side of the support rod 81 and is connected to the guide wheel 82 in a transmission manner. When the pull rope 41 moves up and down, it drives the guide wheel 82 to rotate. The rotation of the guide wheel 82 drives the encoder 83 to rotate. The rotation angle is obtained by the output pulse of the encoder 83. Combined with the diameter of the guide wheel 82, the distance that the pull rope 41 moves up and down can be calculated.

[0028] In some embodiments, a cleaning mechanism 9 is provided inside the housing 1 below the coding mechanism 8. The cleaning mechanism 9 has a first arc plate 91 and a second arc plate 92 fixedly mounted inside the housing 1. The first arc plate 91 and the second arc plate 92 are fitted onto the outside of the pull rope 41. The inner sides of the first arc plate 91 and the second arc plate 92 are provided with bristles for cleaning the outside of the pull rope 41. Through the bristles on the inner sides of the first arc plate 91 and the second arc plate 92, when the pull rope 41 is lifted, the pull rope 41 moves relative to the first arc plate 91 and the second arc plate 92. The bristles can brush away the impurities adhering to the outside of the pull rope 41, preventing impurities from entering the coding mechanism 8 and the winding mechanism 6 and affecting the operation of the mechanism.

[0029] In some embodiments, a cleaning support plate 93 is fixedly installed inside the housing 1. One end of the cleaning support plate 93 has a mounting hole that matches the first arc plate 91 and the second arc plate 92. The first arc plate 91 and the second arc plate 92 are detachably assembled and fixed inside the mounting hole by bolts. After the cleaning mechanism 9 has been used for a period of time, the bristles inside the first arc plate 91 and the second arc plate 92 will wear out. At this time, the first arc plate 91 and the second arc plate 92 can be removed from the mounting hole at one end of the cleaning support plate 93 for replacement. Specifically, the outer sides of the first arc plate 91 and the second arc plate 92 are provided with internal threaded holes. The end of the cleaning support plate 93 has a through hole corresponding to the internal threaded hole. A bolt is installed inside the through hole, and the first arc plate 91 and the second arc plate 92 are detachably and fixedly connected to the cleaning support plate 93 by bolts.

[0030] In some embodiments, a ventilation duct 5 is provided on one side of the bottom of the housing 1 and is connected to the interior of the ventilation duct 5. A fan is provided inside the ventilation duct 5, which can accelerate the air circulation inside the housing 1. During the process of the winding mechanism 6 lifting the in-situ liquid nutrient online analyzer 4 upward, the fan is started at the same time to accelerate the evaporation of moisture on the pull rope 41 and the in-situ liquid nutrient online analyzer 4.

[0031] In some embodiments, a door panel 3 is provided on one side of the housing 1, and a louver 31 is provided on the upper part of the door panel 3; when the fan is started, the internal pressure of the housing 1 increases, pushing the louver 31 to open and expelling the water vapor inside the housing 1 to the outside.

[0032] In some embodiments, a bottom cover 2 is provided at the bottom opening of the housing 1. One side of the bottom cover 2 is hinged to the bottom of the housing 1. An electric push rod 21 is hinged to one side of the housing 1, and the end of the electric push rod 21 is hinged to one side of the bottom cover 2. Before the in-situ liquid nutrient online analyzer 4 is lowered by the winding mechanism 6, the bottom cover 2 is opened by the electric push rod 21. After the in-situ liquid nutrient online analyzer 4 is lifted into the housing 1, the bottom cover 2 is closed by the electric push rod 21.

[0033] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0034] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for dynamic monitoring of nutrient concentration in interconnected river and lake systems, characterized in that: The device includes a housing with an opening at the bottom. A winding mechanism and a control box are installed at the top inside the housing. An in-situ liquid nutrient online analyzer is installed below the winding mechanism. The top of the in-situ liquid nutrient online analyzer is connected to the winding mechanism via a pull rope. The housing is equipped with an encoding mechanism that is fitted onto the outside of the pull rope. The encoding mechanism has a guide wheel that is connected to the pull rope, and an encoder is driven onto the guide wheel. The encoder, the in-situ liquid nutrient online analyzer, and the winding mechanism are all electrically connected to the control box.

2. The dynamic monitoring device for nutrient concentration in river and lake interconnections according to claim 1, characterized in that: The winding mechanism has a rotating shaft rotatably mounted on the top of the housing. One end of the rotating shaft is equipped with a winding motor that drives its rotation. A winding roller is fixedly mounted on the outside of the rotating shaft. One end of the pull rope is connected to the winding roller.

3. The dynamic monitoring device for nutrient concentration in river and lake interconnections according to claim 2, characterized in that: Both ends of the rotating shaft are rotatably provided with bearing seats, and the bearing seats are fixedly connected to the inner top of the box.

4. The dynamic monitoring device for nutrient concentration in river and lake interconnections according to claim 1, characterized in that: The encoding mechanism has a support rod fixedly installed inside the housing. The two ends of the support rod are fixedly connected to the two sides of the inside of the housing, respectively. The guide wheel is rotatably mounted on the support rod. The encoder is fixedly mounted on one side of the support rod and is connected to the guide wheel for transmission.

5. The dynamic monitoring device for nutrient concentration in river and lake interconnection according to claim 1, characterized in that: A cleaning mechanism is provided inside the box below the coding mechanism. The cleaning mechanism has a first arc plate and a second arc plate fixedly mounted inside the box. The first arc plate and the second arc plate are fitted on the outside of the pull rope. The inner sides of the first arc plate and the second arc plate are provided with bristles for cleaning the outside of the pull rope.

6. The dynamic monitoring device for nutrient concentration in river and lake interconnection according to claim 5, characterized in that: A cleaning support plate is fixedly installed inside the box. One end of the cleaning support plate has a mounting hole that matches the first arc plate and the second arc plate. The first arc plate and the second arc plate are detachably assembled and fixed inside the mounting hole by bolts.

7. The dynamic monitoring device for nutrient concentration in river and lake interconnection according to claim 1, characterized in that: A ventilation duct connected to the interior is provided on one side of the bottom of the housing, and a fan is installed inside the ventilation duct.

8. The dynamic monitoring device for nutrient concentration in river and lake interconnection according to claim 7, characterized in that: A door panel is provided on one side of the box, and louvers are provided on the upper part of the door panel.

9. The dynamic monitoring device for nutrient concentration in river and lake interconnections according to claim 1, characterized in that: A bottom cover is provided at the bottom opening of the box body. One side of the bottom cover is hinged to the bottom of the box body. An electric actuator is hinged to one side of the box body. The end of the electric actuator is hinged to one side of the bottom cover.

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