Intelligent quality control system for water quality monitoring

Abstract

The invention provides an intelligent quality control system for water quality monitoring, and is applied to the technical field of water quality monitoring. The system comprises a group A standard sample measuring area, a group B standard sample measuring area and a group C standard sample measuring area, wherein the group A standard sample measuring area comprises a first pH standard sample measuring bottle, a first dissolved oxygen standard sample measuring bottle, a first conductivity standard sample measuring bottle, a first turbidity standard sample measuring bottle and a first U-shaped frame; the group B standard sample measuring area comprises a second pH standard sample measuring bottle, a dissolved oxygen standard sample measuring bottle, a second conductivity standard sample measuring bottle, a second turbidity standard sample measuring bottle and a second U-shaped frame; the sensor transfer comprises a guide plate, a guide chain, an X-axis sliding table, a Y-axis sliding table, a top plate, a sensor fixing plate, an X-axis stepping motor and a Y-axis stepping motor; the sensor assembly comprises a pH sensor, a dissolved oxygen sensor, a conductivity sensor and a turbidity sensor. In this way, the water quality monitoring efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the field of water quality monitoring, and in particular to an intelligent quality control system for water quality monitoring. Background Art

[0002] Ecological and environmental monitoring is fundamental to protecting the ecological environment and a crucial pillar for advancing ecological civilization. Environmental monitoring data provides the fundamental basis for objectively evaluating environmental quality, reflecting pollution control effectiveness, and implementing environmental management and decision-making. my country's surface water quality monitoring network has achieved near-complete coverage of key areas, important river basins, and lakes and reservoirs, and has established a comprehensive "technology, quality control, and management" system that spans the entire monitoring lifecycle. To ensure the accuracy and validity of online monitoring data, the China National Environmental Monitoring Center has implemented a series of quality control measures to ensure the stable and reliable operation of monitoring equipment. These measures include weekly quality control sample verification of five water quality parameters (pH, dissolved oxygen, conductivity, turbidity, and water temperature, which is often measured using the temperature element built into the pH sensor). Weekly quality control of these five parameters requires at least two standard sample verifications of varying concentrations each month. If the weekly quality control sample verification fails to meet technical requirements, the monitoring data for the previous week will be invalidated, demonstrating the importance of weekly quality control sample verification of these five parameters.

[0003] However, the weekly quality control of the five water quality parameters at traditional water stations mainly relies on on-site operation and maintenance personnel to visit the water station at least once a week to perform operations. The degree of automation application is low, and there is a strong dependence on manual labor. There is a risk of human interference, which leads to low efficiency of water quality monitoring and increased operation and maintenance costs. Summary of the Invention

[0004] The purpose of the present invention is to provide an intelligent quality control system for water quality monitoring in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] An intelligent quality control system for water quality monitoring, comprising:

[0007] A group standard sample measurement area (1), a group standard sample measurement area (2), a sensor transport component (4), a sensor component (6) and a bottom plate (45),

[0008] One side end of the bottom plate (45) is fixedly connected to the bottom end of the vertical plate (46); the top end of the vertical plate (46) is fixedly connected to one side end of the horizontal plate (47);

[0009] The group A standard sample measurement area (1) comprises: a first pH standard sample measurement bottle (7), a first dissolved oxygen standard sample measurement bottle (8), a first conductivity standard sample measurement bottle (9), a first turbidity standard sample measurement bottle (10), and a first U-shaped frame (55); the first pH standard sample measurement bottle (7), the first dissolved oxygen standard sample measurement bottle (8), the first conductivity standard sample measurement bottle (9), and the first turbidity standard sample measurement bottle (10) are all fixedly mounted on the first U-shaped frame (55);

[0010] The group B standard sample measurement area (2) includes: a second pH standard sample measurement bottle (11), a dissolved oxygen standard sample measurement bottle (12), a second conductivity standard sample measurement bottle (13), a second turbidity standard sample measurement bottle (14), and a second U-shaped rack (56);

[0011] The sensor transport assembly (4) comprises: a guide plate (53), one side end of the guide plate (53) is fixedly connected to one end of the guide chain (39); the top end of the guide plate (53) is fixedly connected to the X-axis slide (40); the outer end of the X-axis slide (40) is fixedly connected to the Y-axis slide (41); the top end of the Y-axis slide (41) is fixedly connected to one end of the top plate (54); the other end of the top plate (54) is fixedly connected to the other end of the guide chain (39); the Y-axis slide (41) is fixedly connected to one end of the sensor fixing plate (44); one side end of the X-axis slide (40) is fixedly connected to the output shaft of the X-axis stepping motor (42); and one side end of the Y-axis slide (41) is fixedly connected to the Y-axis stepping motor (43).

[0012] The sensor assembly (6) comprises: a pH sensor (15), a dissolved oxygen sensor (16), a conductivity sensor (17), and a turbidity sensor (18); the bottom ends of the pH sensor (15), the dissolved oxygen sensor (16), the conductivity sensor (17), and the turbidity sensor (18) are all fixedly mounted on the fixing plate (44);

[0013] One end of the connecting column (48) is fixedly mounted on the vertical plate (46); the symmetry axis of the connecting column (48) is parallel to the horizontal plane; the other end of the connecting column (48) is fixedly connected to the rear end of the water sample measuring box (3);

[0014] The left end of the water sample measuring box (3) is fixedly connected to the right end of the first U-shaped frame (55); the left end of the first U-shaped frame (55) is fixedly connected to the first left connecting plate (50); the bottom end of the first left connecting plate (50) is fixedly connected to the top end of the first tube clamping solenoid valve (25) and the second tube clamping solenoid valve (26); the side end of the first left connecting plate (50) is fixedly connected to the right end of the second left connecting plate (51) and the third left connecting plate (52); the left ends of the second left connecting plate (51) and the third left connecting plate (52) are fixedly connected to the third peristaltic pump (24);

[0015] One end of the fourth left connecting plate (49) is fixedly mounted on the vertical plate (46), and the other end of the fourth left connecting plate (49) is fixedly connected to the bottom end of the first four-way peristaltic pump (23).

[0016] Furthermore, the measuring box (3) is provided with a pH sensor positioning hole (19), a dissolved oxygen sensor positioning hole (20), a conductivity sensor positioning hole (21), and a turbidity sensor positioning hole (22).

[0017] Furthermore, the first output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first pH standard measurement bottle (7) through a pipeline; the second output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first dissolved oxygen standard measurement bottle (8) through a pipeline; the third output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first conductivity standard measurement bottle (9) through a pipeline; and the fourth output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first turbidity standard measurement bottle (10) through a pipeline.

[0018] Furthermore, one end of the third peristaltic pump (24) is connected to the bottom input ports of the first pH standard measurement bottle (7), the first dissolved oxygen standard measurement bottle (8), the first conductivity standard measurement bottle (9), and the first turbidity standard measurement bottle (10) respectively through a five-way valve.

[0019] Furthermore, the first input port of the first four-way peristaltic pump (23) is connected to the first pH standard storage bottle (31) through the first left pipe; the second input port of the first four-way peristaltic pump (23) is connected to the first dissolved oxygen standard storage bottle (32) through the second left pipe; the third input port of the first four-way peristaltic pump (23) is connected to the first conductivity standard storage bottle (33) through the third left pipe; and the fourth input port of the first four-way peristaltic pump (23) is connected to the first turbidity standard storage bottle (34) through the fourth left pipe.

[0020] Furthermore, the first tube clamping solenoid valve (25) is connected to the first left pipeline via the first left three-way valve; the first tube clamping solenoid valve (25) is connected to the second left pipeline via the second left three-way valve; the second tube clamping solenoid valve (26) is connected to the third left pipeline via the third left three-way valve; and the second tube clamping solenoid valve (26) is connected to the fourth left pipeline via the fourth left three-way valve.

[0021] Furthermore, the first pH standard storage bottle (31), the first dissolved oxygen standard storage bottle (32), the first conductivity standard storage bottle (33), and the first turbidity standard storage bottle (34) are all placed in a standard storage box (5); and the bottom end of the standard storage box (5) is fixedly connected to the bottom plate (45).

[0022] Furthermore, the right end of the water sample measuring box (3) is fixedly connected to the left end of the first right U-shaped frame; the right end of the first right U-shaped frame is fixedly connected to the first right connecting plate; the bottom end of the first right connecting plate is fixedly connected to the top of the first tube clamping solenoid valve (25) and the second tube clamping solenoid valve (26); the side end of the first right connecting plate is fixedly connected to the left end of the second right connecting plate and the third right connecting plate; the right ends of the second right connecting plate and the third right connecting plate are fixedly connected to the fourth peristaltic pump (28);

[0023] One end of the fourth right connecting plate is fixedly mounted on the vertical plate (46), and the other end of the fourth right connecting plate is fixedly connected to the bottom end of the second four-way peristaltic pump (27);

[0024] The first output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second pH standard measurement bottle (11) through a pipeline; the second output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second dissolved oxygen standard measurement bottle (12) through a pipeline; the third output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second conductivity standard measurement bottle (13) through a pipeline; and the fourth output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second turbidity standard measurement bottle (14) through a pipeline.

[0025] One end of the fourth peristaltic pump (28) is connected to the bottom input ports of the second pH standard measurement bottle (11), the second dissolved oxygen standard measurement bottle (12), the second conductivity standard measurement bottle (13), and the second turbidity standard measurement bottle (14) respectively through a five-way valve;

[0026] The first input port of the second four-way peristaltic pump (27) is connected to the second pH standard storage bottle (38) through the first right pipe; the second input port of the second four-way peristaltic pump (27) is connected to the second dissolved oxygen standard storage bottle (37) through the second right pipe; the third input port of the second four-way peristaltic pump (27) is connected to the second conductivity standard storage bottle (36) through the third right pipe; the fourth input port of the second four-way peristaltic pump (27) is connected to the second turbidity standard storage bottle (35) through the fourth right pipe;

[0027] The third tube clamping solenoid valve (29) is connected to the first right pipeline through the first right three-way valve; the third tube clamping solenoid valve (29) is connected to the second right pipeline through the second right three-way valve; the fourth tube clamping solenoid valve (30) is connected to the third right pipeline through the third right three-way valve; the fourth tube clamping solenoid valve (30) is connected to the fourth right pipeline through the fourth right three-way valve;

[0028] The second pH standard sample storage bottle (38), the dissolved oxygen standard sample storage bottle (37), the second conductivity standard sample storage bottle (36), and the second turbidity standard sample storage bottle (35) are all placed in the standard sample storage box (5).

[0029] Compared with the existing technology, the beneficial effect of the present invention is that by controlling the mutual conversion between standard sample measurements of different types and concentrations and water sample measurements of water quality parameter sensors, remote automatic weekly quality control of online water quality monitoring is realized. The automatic weekly quality control leaves traces throughout the process and is traceable, reducing manual operations, improving risk prevention, and ensuring that the monitoring data is "true, accurate, and complete."

[0030] According to an embodiment of the present invention, by adopting a modular structural design, it can be easily embedded in a traditional water quality online monitoring system, has strong compatibility, improves the online monitoring data quality control system, realizes remote automatic weekly quality control function, improves operation and maintenance efficiency, reduces the workload of operation and maintenance personnel for weekly maintenance, reduces operation and maintenance costs, and thus improves the efficiency of water quality monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 A first perspective view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding a bottom plate 45, a vertical plate 46, a horizontal plate 47, a connecting column 48, a fourth connecting plate 49, a first connecting plate 50, a second connecting plate 51, a third connecting plate 52, a guide plate 53, a top plate 54, a first U-shaped frame 55, and a second U-shaped frame 56; Figure 10 Shown Figure 1 Corresponding physical picture;

[0033] Figure 2 A second perspective view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding the bottom plate 45, vertical plate 46, horizontal plate 47, connecting column 48, fourth connecting plate 49, first connecting plate 50, second connecting plate 51, third connecting plate 52, guide plate 53, top plate 54, first U-shaped frame 55, and second U-shaped frame 56; Figure 11 Shown Figure 2 Corresponding physical picture;

[0034] Figure 3A third perspective view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding the bottom plate 45, vertical plate 46, horizontal plate 47, connecting column 48, fourth connecting plate 49, first connecting plate 50, second connecting plate 51, third connecting plate 52, guide plate 53, top plate 54, first U-shaped frame 55, and second U-shaped frame 56; Figure 12 Shown Figure 3 Corresponding physical picture;

[0035] Figure 4 A fourth perspective view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding the bottom plate 45, vertical plate 46, horizontal plate 47, connecting column 48, fourth connecting plate 49, first connecting plate 50, second connecting plate 51, third connecting plate 52, guide plate 53, top plate 54, first U-shaped frame 55, and second U-shaped frame 56; Figure 13 Shown Figure 4 Corresponding physical picture;

[0036] Figure 5 1 shows a front view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention, excluding a bottom plate 45, a vertical plate 46, a horizontal plate 47, a connecting column 48, a fourth connecting plate 49, a first connecting plate 50, a second connecting plate 51, a third connecting plate 52, a guide plate 53, a top plate 54, a first U-shaped frame 55, and a second U-shaped frame 56;

[0037] Figure 6 A left side view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding a bottom plate 45, a vertical plate 46, a horizontal plate 47, a connecting column 48, a fourth connecting plate 49, a first connecting plate 50, a second connecting plate 51, a third connecting plate 52, a guide plate 53, a top plate 54, a first U-shaped frame 55, and a second U-shaped frame 56;

[0038] Figure 7 A right side view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding the bottom plate 45, vertical plate 46, horizontal plate 47, connecting column 48, fourth connecting plate 49, first connecting plate 50, second connecting plate 51, third connecting plate 52, guide plate 53, top plate 54, first U-shaped frame 55, and second U-shaped frame 56;

[0039] Figure 8 1. A top view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding a bottom plate 45, a vertical plate 46, a horizontal plate 47, a connecting column 48, a fourth connecting plate 49, a first connecting plate 50, a second connecting plate 51, a third connecting plate 52, a guide plate 53, a top plate 54, a first U-shaped frame 55, and a second U-shaped frame 56.

[0040] Figure 9A bottom view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown, excluding a bottom plate 45, vertical plates 46, horizontal plates 47, connecting columns 48, a fourth connecting plate 49, a first connecting plate 50, a second connecting plate 51, a third connecting plate 52, a guide plate 53, a top plate 54, a first U-shaped frame 55, and a second U-shaped frame 56;

[0041] Figure 14 A fifth perspective view of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown; Figure 15 Shown Figure 14 Corresponding physical picture;

[0042] Figure 16 Shown Figure 14 A partial enlarged view of part C in the middle; Figure 17 Shown Figure 16 Corresponding physical picture;

[0043] Figure 18 A schematic diagram of a circuit design of an intelligent quality control system for water quality monitoring provided by an embodiment of the present invention is shown;

[0044] The following are the descriptions of the reference numerals:

[0045] 1. Group A standard sample measurement area; 2. Group B standard sample measurement area; 3. Water sample measurement box; 4. Sensor transport assembly; 5. Standard sample storage box; 6. Sensor assembly; 7. First pH standard sample measurement bottle; 8. First dissolved oxygen standard sample measurement bottle; 9. First conductivity standard sample measurement bottle; 10. First turbidity standard sample measurement bottle; 11. Second pH standard sample measurement bottle; 12. Second dissolved oxygen standard sample measurement bottle; 13. Second conductivity standard sample measurement bottle; 14. Second turbidity standard sample measurement bottle; 15. pH sensor; 16. Dissolved oxygen sensor; 17. Conductivity sensor; 18. Turbidity sensor; 19. pH sensor positioning hole; 20. Dissolved oxygen sensor positioning hole; 21. Conductivity sensor positioning hole; 22. Turbidity sensor positioning hole; 23. First four-way peristaltic pump; 24. Third peristaltic pump; 25. First pinch solenoid valve; 26. Second pinch solenoid valve; 27 , second four-way peristaltic pump; 28, fourth peristaltic pump; 29, third clamp solenoid valve; 30, fourth clamp solenoid valve; 31, first pH standard storage bottle; 32, first dissolved oxygen standard storage bottle; 33, first conductivity standard storage bottle; 34, first turbidity standard storage bottle; 35, second turbidity standard storage bottle; 36, second conductivity standard storage bottle; 37, second dissolved oxygen standard storage bottle; 38, second pH standard storage bottle Bottle storage; 39. Guide chain; 40. X-axis slide; 41. Y-axis slide; 42. X-axis stepper motor; 43. Y-axis stepper motor; 44. Sensor fixing plate; 45. Bottom plate; 46. Vertical plate; 47. Horizontal plate; 48. Connecting column; 49. Fourth connecting plate; 50. First connecting plate; 51. Second connecting plate; 52. Third connecting plate; 53. Guide plate; 54. Top plate; 55. First U-shaped frame; 56. Second U-shaped frame. DETAILED DESCRIPTION

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features limited to "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on specific circumstances.

[0048] The present invention will be further described below in conjunction with the accompanying drawings:

[0049] like Figures 1-18 As shown, an intelligent quality control system for water quality monitoring includes: a group A standard sample measurement area 1, a group B standard sample measurement area 2, a sensor transport component 4, a sensor component 6 and a bottom plate 45,

[0050] One side of the bottom plate 45 is fixedly connected to the bottom end of the vertical plate 46; the top of the vertical plate 46 is fixedly connected to one side of the horizontal plate 47;

[0051] The standard sample measurement area 1 of group A includes: a first pH standard sample measurement bottle 7, a first dissolved oxygen standard sample measurement bottle 8, a first conductivity standard sample measurement bottle 9, a first turbidity standard sample measurement bottle 10, and a first U-shaped rack 55; the first pH standard sample measurement bottle 7, the first dissolved oxygen standard sample measurement bottle 8, the first conductivity standard sample measurement bottle 9, and the first turbidity standard sample measurement bottle 10 are all fixedly mounted on the first U-shaped rack 55;

[0052] The standard sample measurement area 2 of group B includes: a second pH standard sample measurement bottle 11, a dissolved oxygen standard sample measurement bottle 12, a second conductivity standard sample measurement bottle 13, a second turbidity standard sample measurement bottle 14, and a second U-shaped rack 56;

[0053] The sensor transport assembly 4 includes: a guide plate 53, one side end of the guide plate 53 is fixedly connected to one end of the guide chain 39; the top end of the guide plate 53 is fixedly connected to the X-axis slide 40; the outer end of the X-axis slide 40 is fixedly connected to the Y-axis slide 41; the top end of the Y-axis slide 41 is fixedly connected to one end of the top plate 54; the other end of the top plate 54 is fixedly connected to the other end of the guide chain 39; the Y-axis slide 41 is fixedly connected to one end of the sensor fixing plate 44; one side end of the X-axis slide 40 is fixedly connected to the output shaft of the X-axis stepper motor 42; and one side end of the Y-axis slide 41 is fixedly connected to the Y-axis stepper motor 43.

[0054] The sensor assembly 6 includes: a pH sensor 15, a dissolved oxygen sensor 16, a conductivity sensor 17, and a turbidity sensor 18; the bottom ends of the pH sensor 15, the dissolved oxygen sensor 16, the conductivity sensor 17, and the turbidity sensor 18 are all fixedly mounted on the fixing plate 44;

[0055] One end of the connecting column 48 is fixedly mounted on the vertical plate 46; the symmetry axis of the connecting column 48 is parallel to the horizontal plane; the other end of the connecting column 48 is fixedly connected to the rear end of the water sample measuring box 3;

[0056] The left end of the water sample measuring box 3 is fixedly connected to the right end of the first U-shaped frame 55; the left end of the first U-shaped frame 55 is fixedly connected to the first left connecting plate 50; the bottom end of the first left connecting plate 50 is fixedly connected to the top of the first tube clamping solenoid valve 25 and the second tube clamping solenoid valve 26 respectively; the side ends of the first left connecting plate 50 are fixedly connected to the right ends of the second left connecting plate 51 and the third left connecting plate 52 respectively; the left ends of the second left connecting plate 51 and the third left connecting plate 52 are fixedly connected to the third peristaltic pump 24;

[0057] One end of the fourth left connecting plate 49 is fixedly mounted on the vertical plate 46 , and the other end of the fourth left connecting plate 49 is fixedly connected to the bottom end of the first four-way peristaltic pump 23 .

[0058] In some embodiments, the measurement box 3 is provided with a pH sensor positioning hole 19 , a dissolved oxygen sensor positioning hole 20 , a conductivity sensor positioning hole 21 , and a turbidity sensor positioning hole 22 .

[0059] In some embodiments, the first output port of the first four-way peristaltic pump 23 is connected to the bottom input port of the first pH standard measurement bottle 7 through a pipeline; the second output port of the first four-way peristaltic pump 23 is connected to the bottom input port of the first dissolved oxygen standard measurement bottle 8 through a pipeline; the third output port of the first four-way peristaltic pump 23 is connected to the bottom input port of the first conductivity standard measurement bottle 9 through a pipeline; and the fourth output port of the first four-way peristaltic pump 23 is connected to the bottom input port of the first turbidity standard measurement bottle 10 through a pipeline.

[0060] In some embodiments, one end of the third peristaltic pump 24 is connected to the bottom input ports of the first pH standard measurement bottle 7, the first dissolved oxygen standard measurement bottle 8, the first conductivity standard measurement bottle 9, and the first turbidity standard measurement bottle 10 through a five-way valve.

[0061] In some embodiments, the first input port of the first four-way peristaltic pump 23 is connected to the first pH standard storage bottle 31 through the first left pipe; the second input port of the first four-way peristaltic pump 23 is connected to the first dissolved oxygen standard storage bottle 32 through the second left pipe; the third input port of the first four-way peristaltic pump 23 is connected to the first conductivity standard storage bottle 33 through the third left pipe; and the fourth input port of the first four-way peristaltic pump 23 is connected to the first turbidity standard storage bottle 34 through the fourth left pipe.

[0062] In some embodiments, the first tube clamping solenoid valve 25 is connected to the first left pipeline through the first left three-way valve; the first tube clamping solenoid valve 25 is connected to the second left pipeline through the second left three-way valve; the second tube clamping solenoid valve 26 is connected to the third left pipeline through the third left three-way valve; the second tube clamping solenoid valve 26 is connected to the fourth left pipeline through the fourth left three-way valve.

[0063] In some embodiments, the first pH standard storage bottle 31 , the first dissolved oxygen standard storage bottle 32 , the first conductivity standard storage bottle 33 , and the first turbidity standard storage bottle 34 are all placed in the standard storage box 5 ; the bottom end of the standard storage box 5 is fixedly connected to the bottom plate 45 .

[0064] In some embodiments, the right end of the water sample measuring box 3 is fixedly connected to the left end of the first right U-shaped frame; the right end of the first right U-shaped frame is fixedly connected to the first right connecting plate; the bottom end of the first right connecting plate is fixedly connected to the top of the first tube clamping solenoid valve 25 and the second tube clamping solenoid valve 26 respectively; the side ends of the first right connecting plate are fixedly connected to the left ends of the second right connecting plate and the third right connecting plate respectively; the right ends of the second right connecting plate and the third right connecting plate are fixedly connected to the fourth peristaltic pump 28;

[0065] One end of the fourth right connecting plate is fixedly mounted on the vertical plate 46, and the other end of the fourth right connecting plate is fixedly connected to the bottom end of the second four-way peristaltic pump 27;

[0066] The first output port of the second four-way peristaltic pump 27 is connected to the bottom input port of the second pH standard measurement bottle 11 through a pipe; the second output port of the second four-way peristaltic pump 27 is connected to the bottom input port of the second dissolved oxygen standard measurement bottle 12 through a pipe; the third output port of the second four-way peristaltic pump 27 is connected to the bottom input port of the second conductivity standard measurement bottle 13 through a pipe; and the fourth output port of the second four-way peristaltic pump 27 is connected to the bottom input port of the second turbidity standard measurement bottle 14 through a pipe.

[0067] One end of the fourth peristaltic pump 28 is connected to the bottom input ports of the second pH standard measurement bottle 11, the second dissolved oxygen standard measurement bottle 12, the second conductivity standard measurement bottle 13, and the second turbidity standard measurement bottle 14 respectively through a five-way valve;

[0068] The first input port of the second four-way peristaltic pump 27 is connected to the second pH standard storage bottle 38 through the first right pipe; the second input port of the second four-way peristaltic pump 27 is connected to the second dissolved oxygen standard storage bottle 37 through the second right pipe; the third input port of the second four-way peristaltic pump 27 is connected to the second conductivity standard storage bottle 36 through the third right pipe; and the fourth input port of the second four-way peristaltic pump 27 is connected to the second turbidity standard storage bottle 35 through the fourth right pipe.

[0069] The third tube clamp solenoid valve 29 is connected to the first right pipeline through the first right three-way valve; the third tube clamp solenoid valve 29 is connected to the second right pipeline through the second right three-way valve; the fourth tube clamp solenoid valve 30 is connected to the third right pipeline through the third right three-way valve; and the fourth tube clamp solenoid valve 30 is connected to the fourth right pipeline through the fourth right three-way valve.

[0070] The second pH standard sample storage bottle 38 , the dissolved oxygen standard sample storage bottle 37 , the second conductivity standard sample storage bottle 36 , and the second turbidity standard sample storage bottle 35 are all placed in the standard sample storage box 5 .

[0071] In some embodiments, the intelligent quality control system for water quality monitoring is an intelligent management of weekly quality control standard sample verification of water quality parameter sensors used in the online water quality monitoring system. The remote automatic weekly quality control standard sample verification function of online water quality monitoring is realized through the PLC (Programmable Controllers) program to intelligently control the operating status between the sensor, peristaltic pump, sensor transport assembly and clamping tube solenoid valve.

[0072] In some embodiments, the standard sample measuring bottles are respectively provided with an air compressor access port, and the one-way check valve can be activated to blow air to dry them, thereby preventing the retention of water samples and pure water from affecting the standard sample measurement results.

[0073] In some embodiments, group A standard sample measurement area 1 and group B standard sample measurement area 2 are two different groups with equal functions. In order to meet the requirements of weekly quality control standard sample verification of the five conventional water quality parameters (pH value, dissolved oxygen, conductivity and turbidity, etc.), at least two standard sample verifications of different concentrations should be performed every month.

[0074] In some embodiments, the standard sample storage box 5 has a 4°C constant temperature refrigeration function.

[0075] In some embodiments, a magnetic stirring device is provided at the bottom of the first turbidity standard storage bottle 34 and the second turbidity standard storage bottle 35 to stir and mix the first turbidity standard (or the second turbidity standard) before drawing it into the first turbidity standard measurement bottle 10 (or the second turbidity standard measurement bottle 14) to avoid measurement errors caused by uneven concentration.

[0076] In some embodiments, when the sensor fixing plate 44 is transported, the X-axis stepper motor 42 drives the X-axis slide 40 to perform horizontal linear motion, the Y-axis stepper motor 43 drives the Y-axis slide 41 to perform vertical linear motion, and the guide chain 39 pulls the power and signal lines of the water quality parameter sensor.

[0077] In some embodiments, the water sample measuring box 3 is provided with a water sample inlet, a water sample drain port, and a cleaning liquid inlet at the bottom, an overflow port at the side, and a liquid level sensor is installed to monitor the water sample status in real time.

[0078] In some embodiments, one end of the third peristaltic pump 24 is connected to pure water, and the other end is connected to the upper ends of the first pH standard measurement bottle 7, the dissolved oxygen standard measurement bottle 8, the first conductivity standard measurement bottle 9, and the first turbidity standard measurement bottle 10 through a five-way valve.

[0079] In some embodiments, one end of the fourth peristaltic pump 28 is connected to pure water, and the other end is connected to the upper ends of the second pH standard measurement bottle 11, the dissolved oxygen standard measurement bottle 12, the second conductivity standard measurement bottle 13, and the second turbidity standard measurement bottle 14 through a five-way valve.

[0080] In some embodiments, the circuit design of the intelligent quality control system for water quality monitoring has 22 switching input signals, 6 of which are used for the limit feedback input of each top and origin, 10 of which are used for the flow feedback signal input of pure water and the first pH standard measurement bottle 7, the dissolved oxygen standard measurement bottle 8, the first conductivity standard measurement bottle 9, the first turbidity standard measurement bottle 10, the second pH standard measurement bottle 11, the dissolved oxygen standard measurement bottle 12, the second conductivity standard measurement bottle 13, and the second turbidity standard measurement bottle 14, and 8 of which are spare; 8 high-speed pulse output signals are designed, 4 of which are used to control the X-axis stepper motor. The X-axis stepper motor 42 is responsible for the horizontal lateral motion control of the sensor transfer component 4, and the Y-axis stepper motor 43 is responsible for the vertical motion control of the sensor transfer component 4, with 4 channels in reserve. 8-channel 24V switch control signal is designed, of which 2 channels control the first tube clamping solenoid valve 25, the second tube clamping solenoid valve 26, the third tube clamping solenoid valve 29, and the fourth tube clamping solenoid valve 30, 2 channels switch relays, and 4 channels are in reserve.

[0081] In some embodiments, the pH standards in the first pH standard storage bottle 31 and the second pH standard storage bottle 38 have different concentrations.

[0082] In some embodiments, the dissolved oxygen standard concentrations in the dissolved oxygen standard storage bottle 32 and the dissolved oxygen standard storage bottle 37 are the same (the dissolved oxygen is checked monthly for oxygen-free water and saturated dissolved oxygen in the air).

[0083] In some embodiments, the first conductivity standard storage bottle 33 and the second conductivity standard storage bottle 36 have different conductivity standard solution concentrations.

[0084] In some embodiments, the turbidity standard concentrations in the first turbidity standard storage bottle 34 and the second turbidity standard storage bottle 35 are different.

[0085] According to an embodiment of the present invention, a water quality parameter sensor is controlled by PLC to convert between standard sample measurements of different types and concentrations and water sample measurements, thereby realizing remote automatic weekly quality control of online water quality monitoring. The automatic weekly quality control leaves traces throughout the process and is traceable, thereby reducing manual operations, improving risk prevention, and ensuring that the monitoring data is "true, accurate, and complete."

[0086] According to an embodiment of the present invention, by adopting a modular structural design, it can be easily embedded in a traditional water quality online monitoring system, has strong compatibility, improves the online monitoring data quality control system, realizes remote automatic weekly quality control function, improves operation and maintenance efficiency, reduces the workload of operation and maintenance personnel for weekly maintenance, reduces operation and maintenance costs, and thus improves the efficiency of water quality monitoring.

[0087] Working principle 1: During the weekly quality control standard sample verification, according to the weekly quality control standard sample verification requirements, the water quality parameter sensors (pH sensor 15, dissolved oxygen sensor 16, conductivity sensor 17, turbidity sensor 18) in the sensor transport component 4 are lifted out of the water sample measurement box 3 through the sensor positioning holes (pH sensor positioning hole 19, dissolved oxygen sensor positioning hole 20, conductivity sensor positioning hole 21, turbidity sensor positioning hole 22), and the sensor transport component 4 is controlled to move the water quality parameter sensors to the left above the group A standard sample measurement area 1, and the sensor transport component 4 is controlled to lower the water quality parameter sensors through the sensor positioning holes into the standard sample measurement bottle (the first pH standard sample measurement bottle). The measuring bottle 7, the dissolved oxygen standard measuring bottle 8, the first conductivity standard measuring bottle 9, and the first turbidity standard measuring bottle 10 are placed in the measuring bottle; the third peristaltic pump 24 is started to clean the water quality parameter sensor for 30 seconds; the first clamping solenoid valve 25 and the second clamping solenoid valve 26 are started for 30 seconds to drain the cleaning liquid; the magnetic stirring device provided at the bottom of the first turbidity standard storage bottle 34 in the standard storage box 5 is started to run for 30 seconds to fully mix the turbidity standard, and then the first four-way peristaltic pump 23 is started. The pH standard, dissolved oxygen standard, conductivity standard and the turbidity standard after stirring and mixing are transported to the standard measurement area 1 of group A. At this time, the first clamping solenoid valve 25 and the second clamping solenoid valve 26 are started. The electromagnetic valve 26 and the third peristaltic pump 24 are all in the closed state, thereby maintaining the integrity of the seal of the standard sample measurement area 1 of group A; the water quality parameter sensor after cleaning and drying is in contact with the corresponding standard sample in the standard sample measurement bottle. After stabilizing for 20 seconds, the monitoring data is automatically read and uploaded to the platform, and the first clamping tube electromagnetic valve 25 and the second clamping tube electromagnetic valve 26 are started for 150 seconds to empty the measured standard sample; at this time, the weekly quality control standard sample verification work is completed. If the verification data is unqualified, the above process is repeated. The flow switch installed in the standard sample measurement bottle and the water quality parameter sensor value change are used to determine whether the liquid is empty. After confirming that the measured standard sample is empty, the first clamping tube electromagnetic valve 25 and the second clamping tube electromagnetic valve 26 are closed. At the same time, start the third peristaltic pump 24 to clean the water quality parameter sensor for 30 seconds, start the first clamping solenoid valve 25 and the second clamping solenoid valve 26 for 30 seconds, and drain the cleaning liquid. After confirming that the cleaning liquid is empty, close the first clamping solenoid valve 25 and the second clamping solenoid valve 26. The standard sample measuring bottles are all provided with air compressor access ports. Start the one-way check valve to blow dry them to avoid affecting the water sample measurement results due to the retention of standard samples and pure water; control the sensor transport component 4 to lift the water quality parameter sensor from the standard sample measurement area 1 of group A and move it to the right to the top of the sensor positioning hole of the water sample measurement box 3 and descend. Then the water quality parameter sensor contacts the water sample to be tested and monitors the water quality data in real time.

[0088] Working principle 2: During the weekly quality control standard sample verification, according to the set weekly quality control standard sample verification requirements, the water quality parameter sensors (pH sensor 15, dissolved oxygen sensor 16, conductivity sensor 17, turbidity sensor 18) in the sensor transport component 4 are lifted out of the water sample measurement box 3 through the sensor positioning holes (pH sensor positioning hole 19, dissolved oxygen sensor positioning hole 20, conductivity sensor positioning hole 21, turbidity sensor positioning hole 22); the sensor transport component 4 is controlled to move the water quality parameter sensors to the right above the group B standard sample measurement area 2, and the sensor transport component 4 is controlled to lower the water quality parameter sensors through the sensor positioning holes into the standard sample measurement bottles (the second pH standard sample measurement bottle 11, the dissolved oxygen standard sample measurement bottle 12, the second conductivity standard sample measurement bottle 13, the second turbidity standard sample measurement bottle 14); the fourth peristaltic pump 28 is started to clean the water quality parameter sensors for 30 seconds; the third clamping solenoid valve 29 and the fourth clamping solenoid valve 30 are started for 3 seconds. 0s, empty the cleaning liquid, and the standard sample measuring bottles are respectively provided with an air compressor access port. The one-way check valve can be started to blow dry to avoid affecting the standard sample measurement results due to the retention of water sample and pure water; start the magnetic stirring device set at the bottom of the second turbidity standard storage bottle 35 in the standard sample storage box 5 and run it for 30s to fully mix the turbidity standard, then start the second four-way peristaltic pump 27, and the above pH standard, dissolved oxygen standard, conductivity standard and the turbidity standard after stirring and mixing are transported to the B group standard measuring bottle In measurement area 2, the third and fourth clamp solenoid valves 29, 30, and 28 are all closed, maintaining the seal of Group B standard sample measurement area 2. The cleaned and dried water quality parameter sensor is placed in contact with the corresponding standard sample in the standard sample measurement bottle. After stabilizing for 20 seconds, the monitoring data is automatically read and uploaded to the platform. The third and fourth clamp solenoid valves 29, 30 are activated for 150 seconds to drain the measured standard sample. At this point, the weekly quality control standard sample verification is complete. If the verification data fails, the above process is repeated. Whether the liquid is empty is determined by the flow switch installed on the standard sample measuring bottle and the value change of the water quality parameter sensor. After determining that the measured standard sample is empty, the third clamping tube solenoid valve 29 and the fourth clamping tube solenoid valve 30 are closed, and the fourth peristaltic pump 28 is started at the same time to clean the water quality parameter sensor for 30 seconds, and the third clamping tube solenoid valve 29 and the fourth clamping tube solenoid valve 30 are started for 30 seconds to empty the cleaning liquid; after determining that the cleaning liquid is empty, the third clamping tube solenoid valve 29 and the fourth clamping tube solenoid valve 30 are closed, and the standard sample measuring bottles are all provided with an air compressor access port. The one-way check valve is started to blow dry to avoid affecting the water sample measurement results due to the retention of standard samples and pure water; the sensor transport component 4 is controlled to lift the water quality parameter sensor from the group B standard sample measurement area 2 and move it to the left to the top of the sensor positioning hole of the water sample measurement box 3 and descend. Then the water quality parameter sensor contacts the water sample to be tested and monitors the water quality data in real time.

[0089] The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and these changes and improvements shall fall within the scope of the invention claimed for protection.

Claims

1. An intelligent quality control system for water quality monitoring, comprising a group A standard sample measurement area (1), a group B standard sample measurement area (2), a sensor transport component (4), a sensor component (6) and a bottom plate (45), characterized in that: One side end of the bottom plate (45) is fixedly connected to the bottom end of the vertical plate (46); the top end of the vertical plate (46) is fixedly connected to one side end of the horizontal plate (47); The group A standard sample measurement area (1) comprises: a first pH standard sample measurement bottle (7), a first dissolved oxygen standard sample measurement bottle (8), a first conductivity standard sample measurement bottle (9), a first turbidity standard sample measurement bottle (10), and a first U-shaped frame (55); the first pH standard sample measurement bottle (7), the first dissolved oxygen standard sample measurement bottle (8), the first conductivity standard sample measurement bottle (9), and the first turbidity standard sample measurement bottle (10) are all fixedly mounted on the first U-shaped frame (55); The group B standard sample measurement area (2) includes: a second pH standard sample measurement bottle (11), a dissolved oxygen standard sample measurement bottle (12), a second conductivity standard sample measurement bottle (13), a second turbidity standard sample measurement bottle (14), and a second U-shaped rack (56); The sensor transport assembly (4) comprises: a guide plate (53), one side end of the guide plate (53) is fixedly connected to one end of the guide chain (39); the top end of the guide plate (53) is fixedly connected to the X-axis slide (40); the outer end of the X-axis slide (40) is fixedly connected to the Y-axis slide (41); the top end of the Y-axis slide (41) is fixedly connected to one end of the top plate (54); the other end of the top plate (54) is fixedly connected to the other end of the guide chain (39); the Y-axis slide (41) is fixedly connected to one end of the sensor fixing plate (44); one side end of the X-axis slide (40) is fixedly connected to the output shaft of the X-axis stepping motor (42); and one side end of the Y-axis slide (41) is fixedly connected to the Y-axis stepping motor (43). The sensor assembly (6) comprises: a pH sensor (15), a dissolved oxygen sensor (16), a conductivity sensor (17), and a turbidity sensor (18); the bottom ends of the pH sensor (15), the dissolved oxygen sensor (16), the conductivity sensor (17), and the turbidity sensor (18) are all fixedly mounted on the fixing plate (44); One end of the connecting column (48) is fixedly mounted on the vertical plate (46); the symmetry axis of the connecting column (48) is parallel to the horizontal plane; the other end of the connecting column (48) is fixedly connected to the rear end of the water sample measuring box (3); The left end of the water sample measuring box (3) is fixedly connected to the right end of the first U-shaped frame (55); the left end of the first U-shaped frame (55) is fixedly connected to the first left connecting plate (50); the bottom end of the first left connecting plate (50) is fixedly connected to the top end of the first tube clamping solenoid valve (25) and the second tube clamping solenoid valve (26); the side end of the first left connecting plate (50) is fixedly connected to the right end of the second left connecting plate (51) and the third left connecting plate (52); the left ends of the second left connecting plate (51) and the third left connecting plate (52) are fixedly connected to the third peristaltic pump (24); One end of the fourth left connecting plate (49) is fixedly mounted on the vertical plate (46), and the other end of the fourth left connecting plate (49) is fixedly connected to the bottom end of the first four-way peristaltic pump (23).

2. The intelligent quality control system for water quality monitoring according to claim 1, characterized in that: The measuring box (3) is provided with a pH sensor positioning hole (19), a dissolved oxygen sensor positioning hole (20), a conductivity sensor positioning hole (21), and a turbidity sensor positioning hole (22).

3. The intelligent quality control system for water quality monitoring according to claim 2, characterized in that: The first output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first pH standard measurement bottle (7) through a pipeline; the second output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first dissolved oxygen standard measurement bottle (8) through a pipeline; the third output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first conductivity standard measurement bottle (9) through a pipeline; and the fourth output port of the first four-way peristaltic pump (23) is connected to the bottom input port of the first turbidity standard measurement bottle (10) through a pipeline.

4. The intelligent quality control system for water quality monitoring according to claim 3, characterized in that: One end of the third peristaltic pump (24) is connected to the bottom input ports of the first pH standard measurement bottle (7), the first dissolved oxygen standard measurement bottle (8), the first conductivity standard measurement bottle (9), and the first turbidity standard measurement bottle (10) respectively through a five-way valve.

5. The intelligent quality control system for water quality monitoring according to claim 4, characterized in that: The first input port of the first four-way peristaltic pump (23) is connected to the first pH standard storage bottle (31) through the first left pipeline; the second input port of the first four-way peristaltic pump (23) is connected to the first dissolved oxygen standard storage bottle (32) through the second left pipeline; the third input port of the first four-way peristaltic pump (23) is connected to the first conductivity standard storage bottle (33) through the third left pipeline; and the fourth input port of the first four-way peristaltic pump (23) is connected to the first turbidity standard storage bottle (34) through the fourth left pipeline.

6. The intelligent quality control system for water quality monitoring according to claim 5, characterized in that: The first tube clamping solenoid valve (25) is connected to the first left pipeline through the first left three-way valve; the first tube clamping solenoid valve (25) is connected to the second left pipeline through the second left three-way valve; the second tube clamping solenoid valve (26) is connected to the third left pipeline through the third left three-way valve; and the second tube clamping solenoid valve (26) is connected to the fourth left pipeline through the fourth left three-way valve.

7. The intelligent quality control system for water quality monitoring according to claim 6, characterized in that: The first pH standard storage bottle (31), the first dissolved oxygen standard storage bottle (32), the first conductivity standard storage bottle (33), and the first turbidity standard storage bottle (34) are all placed in a standard storage box (5); the bottom end of the standard storage box (5) is fixedly connected to the bottom plate (45).

8. The intelligent quality control system for water quality monitoring according to claim 7, characterized in that: The right end of the water sample measuring box (3) is fixedly connected to the left end of the first right U-shaped frame; the right end of the first right U-shaped frame is fixedly connected to the first right connecting plate; the bottom end of the first right connecting plate is fixedly connected to the top of the first tube clamping solenoid valve (25) and the second tube clamping solenoid valve (26); the side ends of the first right connecting plate are fixedly connected to the left ends of the second right connecting plate and the third right connecting plate; the right ends of the second right connecting plate and the third right connecting plate are fixedly connected to the fourth peristaltic pump (28); One end of the fourth right connecting plate is fixedly mounted on the vertical plate (46), and the other end of the fourth right connecting plate is fixedly connected to the bottom end of the second four-way peristaltic pump (27); The first output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second pH standard measurement bottle (11) through a pipeline; the second output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second dissolved oxygen standard measurement bottle (12) through a pipeline; the third output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second conductivity standard measurement bottle (13) through a pipeline; and the fourth output port of the second four-way peristaltic pump (27) is connected to the bottom input port of the second turbidity standard measurement bottle (14) through a pipeline. One end of the fourth peristaltic pump (28) is connected to the bottom input ports of the second pH standard measurement bottle (11), the second dissolved oxygen standard measurement bottle (12), the second conductivity standard measurement bottle (13), and the second turbidity standard measurement bottle (14) respectively through a five-way valve; The first input port of the second four-way peristaltic pump (27) is connected to the second pH standard storage bottle (38) through the first right pipe; the second input port of the second four-way peristaltic pump (27) is connected to the second dissolved oxygen standard storage bottle (37) through the second right pipe; the third input port of the second four-way peristaltic pump (27) is connected to the second conductivity standard storage bottle (36) through the third right pipe; the fourth input port of the second four-way peristaltic pump (27) is connected to the second turbidity standard storage bottle (35) through the fourth right pipe; The third tube clamping solenoid valve (29) is connected to the first right pipeline through the first right three-way valve; the third tube clamping solenoid valve (29) is connected to the second right pipeline through the second right three-way valve; the fourth tube clamping solenoid valve (30) is connected to the third right pipeline through the third right three-way valve; the fourth tube clamping solenoid valve (30) is connected to the fourth right pipeline through the fourth right three-way valve; The second pH standard sample storage bottle (38), the dissolved oxygen standard sample storage bottle (37), the second conductivity standard sample storage bottle (36), and the second turbidity standard sample storage bottle (35) are all placed in the standard sample storage box (5).

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