A water quality analyzer calibration device

Abstract

The utility model embodiment provides a kind of water quality analyser calibration device, comprising: check module, quality control cup group, reagent cabinet, peristaltic pump group, control module;The check module and the peristaltic pump group are electrically connected with the control module;The first inlet of quality control cup in the quality control cup group is connected with the outlet of peristaltic pump in the peristaltic pump group, and the inlet of peristaltic pump in the peristaltic pump group is connected with the outlet of the reagent cabinet;The check module includes: the X-axis linear module of transverse arrangement and the Y-axis linear module of longitudinal arrangement;The X-axis linear module and the Y-axis linear module are slidably connected, and the Y-axis linear module moves on the X-axis linear module;The moving range of the Y-axis linear module includes the quality control cup group;The lower end of the Y-axis linear module is provided with sensor group. Standard solution can be automatically transported to quality control cup by peristaltic pump, and sensor group can be automatically moved to quality control cup group, to realize automatic calibration.

Description

Technical Field

[0001] This utility model relates to the field of instrument testing technology, and in particular to a calibration device for a water quality analyzer. Background Technology

[0002] Currently, online testing instruments frequently require calibration during practical use due to environmental factors and aging. However, calibration is still primarily performed manually. This can lead to errors due to operator unfamiliarity, misoperation, or failure to follow prescribed procedures. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a water quality analyzer calibration device to solve the problem of human error that occurs during manual calibration. The specific technical solution is as follows:

[0004] This utility model provides a water quality analyzer calibration device, the device comprising: a verification module, a quality control cup group, a reagent cabinet, a peristaltic pump group, and a control module; the verification module and the peristaltic pump group are electrically connected to the control module;

[0005] The first inlet of the quality control cup in the quality control cup group is connected to the outlet of the peristaltic pump in the peristaltic pump group, and the inlet of the peristaltic pump in the peristaltic pump group is connected to the outlet of the reagent cabinet.

[0006] The verification module includes: a horizontally arranged X-axis linear module and a vertically arranged Y-axis linear module; the X-axis linear module and the Y-axis linear module are slidably connected, and the Y-axis linear module moves on the X-axis linear module; the movement range of the Y-axis linear module includes the quality control cup group; a sensor group is provided at the lower end of the Y-axis linear module.

[0007] In one possible implementation, the sensor group includes one or more of a pH sensor, a dissolved oxygen sensor, a conductivity sensor, and a turbidity sensor;

[0008] The quality control cup group includes one or more quality control cups, and the number of quality control cups is the same as the number of sensors in the sensor group; when the number of sensors in the sensor group is multiple, the relative positions between the multiple sensors are the same as the relative positions between the quality control cups in the quality control cup group.

[0009] The peristaltic pump assembly includes one or more peristaltic pumps; the inlet of each quality control cup is connected to the outlet of one or more peristaltic pumps.

[0010] In one possible implementation, the device further includes: a solenoid valve assembly and a pressure reducing valve; the solenoid valves are electrically connected to the control module;

[0011] The solenoid valve group includes one or more solenoid valves, and the number of solenoid valves is the same as the number of peristaltic pumps;

[0012] The inlet of the pressure reducing valve is connected to a compressed air pipe, and the outlet of the pressure reducing valve is connected to one end of each solenoid valve; the other end of each solenoid valve is connected to one end of another solenoid valve, and the other end of each solenoid valve is connected to the inlet and outlet of a peristaltic pump through a check valve.

[0013] In one possible implementation, the device further includes: a first single-way solenoid valve and a first three-way solenoid valve; the first single-way solenoid valve and the first three-way solenoid valve are electrically connected to the control module; the number of the first single-way solenoid valve and the first three-way solenoid valve is the same as the number of the quality control cups.

[0014] Each quality control cup is connected to one end of a first single-way solenoid valve; the other end of each first single-way solenoid valve is connected to the first end of a first three-way solenoid valve; the second end of each first three-way solenoid valve is connected to the first end of a second three-way solenoid valve; and the second end of the second three-way solenoid valve is connected to a drain pipe.

[0015] In one possible implementation, the device further includes a booster pump; the booster pump is electrically connected to the control module;

[0016] The third end of each of the first three-way solenoid valves is connected to one end of the first straight-through electric ball valve;

[0017] The other end of the first through-type electric ball valve is connected to the outlet of the booster pump.

[0018] In one possible implementation, the device further includes: a waste liquid tank;

[0019] The third end of the second three-way solenoid valve is connected to the waste liquid tank; the inlet of each peristaltic pump is also connected to the waste liquid tank through a second one-way solenoid valve.

[0020] In one possible implementation, the reagent cabinet includes: one or more standard solution tanks, the number of which is the same as the number of peristaltic pumps in the peristaltic pump assembly;

[0021] The reagent cabinet includes: a refrigerated sub-cabinet; dissolved oxygen zero-point standard solution and turbidity standard solution, with the corresponding standard solution tanks set inside the refrigerated sub-cabinet;

[0022] A magnetic stirrer is installed at the bottom of the refrigerated cabinet.

[0023] In one possible implementation, the device further includes: a cleaning tank, a first three-way electric ball valve, and a second three-way electric ball valve; the first three-way electric ball valve and the second three-way electric ball valve are electrically connected to the control module;

[0024] The first inlet of the cleaning tank is connected to the outlet of the first three-way electric ball valve; the first inlet of the first three-way electric ball valve is connected to the outlet of the second three-way electric ball valve via a booster pump.

[0025] The second inlet of the cleaning tank is connected to the outlet of the second three-way electric ball valve;

[0026] The upper part of the cleaning tank is provided with an overflow outlet, which is connected to a drain pipe;

[0027] The bottom of the cleaning tank is provided with a drain outlet, which is connected to the drain pipe through a second straight-through electric ball valve.

[0028] In one possible implementation, the device further includes: a third three-way electric ball valve; the third three-way electric ball valve is electrically connected to the control module;

[0029] The inlet of the second three-way electric ball valve is connected to the outlet of the third three-way electric ball valve;

[0030] The second inlet of the first three-way electric ball valve is connected to the outlet of the third three-way electric ball valve;

[0031] The first inlet of the third three-way electric ball valve is connected to a tap water pipe; the second inlet of the third three-way electric ball valve is connected to a compressed air pipe.

[0032] In one possible implementation, a temperature sensor is provided on the cleaning tank; the temperature sensor is electrically connected to the control module.

[0033] This utility model provides a water quality analyzer calibration device, comprising: a verification module, a quality control cup group, a reagent cabinet, a peristaltic pump group, and a control module; the verification module and the peristaltic pump group are electrically connected to the control module; the first inlet of the quality control cup in the quality control cup group is connected to the outlet of the peristaltic pump in the peristaltic pump group, and the inlet of the peristaltic pump in the peristaltic pump group is connected to the outlet of the reagent cabinet; the verification module includes: a horizontally arranged X-axis linear module and a vertically arranged Y-axis linear module; the X-axis linear module and the Y-axis linear module are slidably connected, and the Y-axis linear module moves on the X-axis linear module; the movement range of the Y-axis linear module includes the quality control cup group; a sensor group is provided at the lower end of the Y-axis linear module. The solution of this utility model embodiment connects the first inlet of the quality control cup in the quality control cup group to the outlet of the peristaltic pump in the peristaltic pump group, and connects the inlet of the peristaltic pump in the peristaltic pump group to the outlet of the reagent cabinet. The control module controls the peristaltic pump to deliver standard solution to the quality control cup. At the same time, the horizontally arranged X-axis linear module and the vertically arranged Y-axis linear module are used. The control module controls the Y-axis linear module to move the sensor group set at the lower end to the quality control cup group, thereby realizing automatic calibration and solving the problem of human error in manual calibration.

[0034] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0036] Figure 1 A schematic diagram of a water quality analyzer calibration device provided in an embodiment of this utility model;

[0037] Figure 2 A top view of the quality control cup assembly provided in an embodiment of this utility model;

[0038] Figure 3 This is an example diagram of a water quality analyzer calibration device provided in an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Verification module; 2. Quality control cup set; 3. Reagent cabinet; 4. Peristaltic pump set; 5. Control module; 6. Sensor set; 7. Solenoid valve set; 8. Pressure reducing valve; 9. First single-way solenoid valve; 10. First three-way solenoid valve; 11. Booster pump; 12. Waste liquid tank; 13. Cleaning tank; 14. First three-way electric ball valve; 15. Second three-way electric ball valve; 16. Third three-way electric ball valve; 17. First straight-through electric ball valve; 18. Second straight-through electric ball valve; 19. Second three-way solenoid valve. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art based on this application are within the protection scope of the present utility model.

[0042] This utility model provides a water quality analyzer calibration device, see [link]. Figure 1 , Figure 1 This is a schematic diagram of a water quality analyzer calibration device provided in an embodiment of the present invention. The device includes: a verification module 1, a quality control cup group 2, a reagent cabinet 3, a peristaltic pump group 4, and a control module 5; the verification module 1 and the peristaltic pump group 4 are electrically connected to the control module 5.

[0043] The first inlet of the quality control cup in the quality control cup group 2 is connected to the outlet of the peristaltic pump in the peristaltic pump group 4, and the inlet of the peristaltic pump in the peristaltic pump group 4 is connected to the outlet of the reagent cabinet.

[0044] The verification module 1 includes: a horizontally arranged X-axis linear module and a vertically arranged Y-axis linear module; the X-axis linear module and the Y-axis linear module are slidably connected, and the Y-axis linear module moves on the X-axis linear module; the movement range of the Y-axis linear module includes the quality control cup group 2; a sensor group 6 is provided at the lower end of the Y-axis linear module.

[0045] In this embodiment of the invention, the first inlet of the quality control cup in the quality control cup group 2 is connected to the outlet of the peristaltic pump in the peristaltic pump group 4, and the inlet of the peristaltic pump in the peristaltic pump group 4 is connected to the outlet of the reagent cabinet 3. Standard solutions can be stored in the reagent cabinet 3, and the control module 5 can control the peristaltic pump group 4 to transfer the standard solutions from the reagent cabinet 3 to the quality control cup, thus facilitating sensor calibration using the standard solutions. In actual use, the control module 5 can set the running time of the peristaltic pump, thereby controlling the volume of standard solutions delivered to the quality control cup by the peristaltic pump. The sensor in this embodiment of the invention can be one or more of the following: a pH (acidity / alkalinity) sensor, a dissolved oxygen sensor, a conductivity sensor, and a turbidity sensor.

[0046] The verification module 1 can be composed of an X-axis linear module and a Y-axis linear module. The sensor is mounted on the Y-axis linear module and can move back and forth between positions Y0 and Y2 on the verification module 1 (Y-axis). When the sensor is at position Y0 on the verification module 1 (Y-axis), it can move back and forth between positions X0 and X1 on the verification module 1 (X-axis). When the verification module 1 (Y-axis) is at position X0 on the verification module 1 (X-axis), the sensor can move to position Y2 on the verification module 1 (Y-axis), and the sensor test part can be inserted into the center of the quality control cup group 2. When there is standard solution in the quality control cup, the test part can be submerged in the standard solution, which facilitates the calibration or verification of each sensor. In actual use, after the control module 5 receives the sensor's movement into position signal, it controls the peristaltic pump to input standard solution into the quality control cup, and after a preset time, it performs calibration after the sensor value stabilizes, thereby achieving automated calibration.

[0047] As can be seen, through the solution of this utility model embodiment, the first inlet of the quality control cup in the quality control cup group 2 is connected to the outlet of the peristaltic pump in the peristaltic pump group 4, and the inlet of the peristaltic pump in the peristaltic pump group 4 is connected to the outlet of the reagent cabinet 3. The control module 5 controls the peristaltic pump to deliver standard solution to the quality control cup. At the same time, the horizontally arranged X-axis linear module and the vertically arranged Y-axis linear module are used. The control module 5 controls the Y-axis linear module to move the sensor group 6 set at the lower end to the quality control cup group 2, thereby realizing automatic calibration and solving the problem of human error that occurs in manual calibration.

[0048] In one possible implementation, the sensor group 6 includes one or more of a pH sensor, a dissolved oxygen sensor, a conductivity sensor, and a turbidity sensor; the quality control cup group 2 includes one or more quality control cups, and the number of quality control cups is the same as the number of sensors in the sensor group 6; when the number of sensors in the sensor group 6 is multiple, the relative positions between the multiple sensors are the same as the relative positions between the quality control cups in the quality control cup group 2; the peristaltic pump group 4 includes one or more peristaltic pumps; the inlet of each quality control cup is connected to the outlet of one or more peristaltic pumps. The sensor group 6 includes one or more of a pH sensor, a dissolved oxygen sensor, a conductivity sensor, and a turbidity sensor. When the number of sensors in the sensor group 6 is multiple, the relative positions between the multiple sensors are the same as the relative positions between the quality control cups in the quality control cup group 2. See also: Figure 2 , Figure 2 This is a schematic diagram of a sensor structure provided in an embodiment of the present invention. Specifically, it is an end face view of a Y-axis linear module, wherein the end face includes four sensors, located at the four corners. In one example, sensor group 6 includes four sensors: a pH sensor, a dissolved oxygen sensor, a conductivity sensor, and a turbidity sensor. The four sensors can be located at the four corners of the lower end face of the Y-axis linear module, and the spacing between multiple quality control cups can be the same as the spacing between the four sensors. This allows for simultaneous calibration of all four sensors.

[0049] It should also be noted that in this embodiment of the invention, the inlet of each quality control cup is connected to the outlet of one or more peristaltic pumps. One or more standard solutions can be introduced into the quality control cup via the peristaltic pumps, thereby enabling a sensor to be calibrated using one or more standard solutions. For example, the pH sensor can be calibrated using standard solutions with pH values ​​of 9.18, 6.86, and 4.00, respectively. Conversely, the dissolved oxygen sensor can be calibrated using only one standard solution.

[0050] In one possible implementation, the device further includes: a solenoid valve assembly 7 and a pressure reducing valve 8; the solenoid valves are electrically connected to the control module 5; the solenoid valve assembly 7 includes one or more solenoid valves, and the number of solenoid valves is the same as the number of peristaltic pumps; the inlet of the pressure reducing valve 8 is connected to a compressed air pipe, and the outlet of the pressure reducing valve 8 is connected to one end of each solenoid valve; the other end of each solenoid valve is connected to one end of another solenoid valve, and the other end of each solenoid valve is connected to the inlet and outlet of a peristaltic pump via a check valve. In this embodiment, the number of solenoid valves is the same as the number of peristaltic pumps, and the other end of each solenoid valve is connected to one end of another solenoid valve, and the other end of each solenoid valve is connected to the inlet and outlet of a peristaltic pump via a check valve. This allows standard solutions to be input into only one or more control cups, enabling calibration of only one or more specified sensors even when all sensors are moved to the control cups. In one example, when the device in this embodiment includes four sensors, if only three of them are calibrated, then when all four sensors are placed in the control cups, standard solution can be introduced into the three control cups via a peristaltic pump, thereby calibrating only those three sensors. Simultaneously, the one-way valve design prevents the standard solution from flowing back into the standard solution tank and causing contamination.

[0051] In one possible implementation, the device further includes: a first single-way solenoid valve 9 and a first three-way solenoid valve 10; the first single-way solenoid valve 9 and the first three-way solenoid valve 10 are electrically connected to the control module 5; the number of the first single-way solenoid valve 9 and the first three-way solenoid valve 10 is the same as the number of the quality control cups; each quality control cup is connected to one end of a first single-way solenoid valve 9; the other end of each first single-way solenoid valve 9 is connected to the first end of a first three-way solenoid valve 10; the second end of each first three-way solenoid valve 10 is connected to the first end of a second three-way solenoid valve 19; the second end of the second three-way solenoid valve 19 is connected to a drain pipe. In this embodiment of the present invention, after calibration, the first single-way solenoid valve 9, the first three-way solenoid valve 10, and the second three-way solenoid valve 19 can be opened by the control module 5 to automatically discharge wastewater into the drain pipe. In actual use, the wastewater discharged into the drain pipe may include standard solution or wastewater used for cleaning the quality control cups.

[0052] In one example, in this embodiment of the invention, the calibration process of the pH sensor can be performed using various standard solutions, such as standard solutions corresponding to pH 9.18 and pH 6.86. See also... Figure 3It should be noted that the diagram includes eight peristaltic pumps: PH1, PH2, PH3, DO, Cond1, Cond2, Turb1, and Turb2; the corresponding solenoid valves for the same peristaltic pumps are ZV01, ZV02, ZV03, ZV04, ZV05, ZV06, ZV07, and ZV08; and the stirrers include JB1-Turb1, JB2-Turb2, and JB3-DO. The specific calibration process may include: V3 (left-hand pass), V13 open, M4 start, after 10 seconds, V4 close, V3 close, and V13 close. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), the PH sensor is moved to position Y2 of the verification module (Y-axis), peristaltic pump PH3 starts and stops after 30 seconds, ZV17 opens, ZV09 opens, after 60 seconds, ZV17 closes, and ZV09 closes. The peristaltic pump PH3 restarts and stops after 30 seconds. ZV03 opens for 15 seconds, then KT03 opens. After 10 seconds, ZV03 and KT03 close, performing PH9.18 calibration. After completion, ZV17 and ZV09 open, and ZV17 closes after 60 seconds. ZV10 opens, V4 (left-hand pass), and M4 starts. After 16 seconds, M4 closes, V4 closes, ZV09 closes, and ZV10 closes. The PH sensor moves to position Y0 on the verification module (Y-axis), then the verification module (Y-axis) shifts to position X1 on the verification module (X-axis), and the PH sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 opens, and M4 starts. After 10 seconds, M4 closes, V3 closes, and V13 closes. ZV09 opens, and after 60 seconds, ZV09 closes. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), and the pH sensor is moved to position Y2 of the verification module (Y-axis). The peristaltic pump PH2 starts and stops after 30 seconds. ZV17 and ZV09 are turned on, and after 60 seconds, ZV17 and ZV09 are turned off. The peristaltic pump PH2 starts again and stops after 30 seconds. ZV02 is turned on for 15 seconds, then KT02 is turned on. After 10 seconds, ZV02 and KT02 are turned off, and pH 6.86 calibration is performed. After completion, ZV17 and ZV09 are turned on, and after 60 seconds, ZV17 is turned off. ZV10 is turned on, V4 (left-hand pass), and M4 is started. After 16 seconds, M4 is turned off, V4 is turned off, ZV09 is turned off, and ZV10 is turned off. After the pH sensor moves to position Y0 on the verification module (Y-axis), the verification module (Y-axis) moves to position X1 on the verification module (X-axis), and then the pH sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 activated, after 10 seconds, M4 off, V3 off, V13 off. ZV09 on, after 60 seconds, ZV09 off. The automatic calibration process ends. In another example, the pH sensor can also be verified using a pH 9.18 standard solution. The verification process can include: Automatic verification (pH 9.18): V3 (left-hand pass), V13 on, M4 activated, after 10 seconds, M4 off, V3 off, V13 off.The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), the pH sensor is moved to position Y2 of the verification module (Y-axis), the peristaltic pump PH3 starts and stops after 30 seconds, ZV17 and ZV09 open, ZV17 and ZV09 close after 60 seconds. The peristaltic pump PH3 starts again and stops after 30 seconds, ZV03 opens for 15 seconds, KT03 opens, ZV03 and KT03 close after 10 seconds, and the pH9.18 verification is performed. After completion, ZV17 and ZV09 open, ZV17 closes after 60 seconds. ZV10 opens, V4 (left-hand passage) and M4 start, M4 closes after 16 seconds, V4 closes, ZV09 closes, and ZV10 closes. After the pH sensor moves to position Y0 on the verification module (Y-axis), the verification module (Y-axis) shifts to position X1 on the verification module (X-axis), and then the pH sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand flow), V13 open, M4 activated, after 10 seconds, M4 closed, V3 closed, V13 closed. ZV09 open, after 60 seconds, ZV09 closed. The automatic verification process ends. In another example, verification can be performed using a pH 6.86 standard solution. The verification process can include: V3 (left-hand flow), V13 open, M4 activated, after 10 seconds, M4 closed, V3 closed, V13 closed. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), and the pH sensor is moved to position Y2 of the verification module (Y-axis). Peristaltic pump PH2 starts and stops after 30 seconds. ZV17 and ZV09 open, and after 60 seconds, ZV17 and ZV09 close. Peristaltic pump PH2 starts again and stops after 30 seconds. ZV02 opens for 15 seconds, then KT02 opens, and after 10 seconds, ZV02 and KT02 close. A pH 6.86 verification is performed. After completion, ZV17 and ZV09 open, and after 60 seconds, ZV17 closes. ZV10 opens, V4 (left-hand pass), and M4 starts. After 16 seconds, M4 closes, V4 closes, ZV09 closes, and ZV10 closes. After the pH sensor moves to position Y0 on the verification module (Y-axis), the verification module (Y-axis) shifts to position X1 on the verification module (X-axis), and then the pH sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 open, M4 activated, after 10 seconds, M4 closed, V3 closed, V13 closed. ZV09 open, after 60 seconds, ZV09 closed. The automatic verification process ends. In another example, verification can be performed using a pH 4.00 standard solution. The verification process can include: V3 (left-hand pass), V13 open, M4 activated, after 10 seconds, M4 closed, V3 closed, V13 closed. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), the pH sensor is moved to position Y2 of the verification module (Y-axis), the peristaltic pump PH1 starts and stops after 30 seconds, ZV17 and ZV09 turn on, and after 60 seconds, ZV17 and ZV09 turn off.Peristaltic pump PH1 restarts and stops after 30 seconds. ZV01 opens for 15 seconds, then KT01 opens. After 10 seconds, ZV01 and KT01 close, executing PH4.00 verification. After completion, ZV17 and ZV09 open, and ZV17 closes after 60 seconds. ZV10 opens, V4 (left-hand pass), and M4 starts. After 16 seconds, M4 closes, V4 closes, ZV09 closes, and ZV10 closes. The PH sensor moves to position Y0 on the verification module (Y-axis), then the verification module (Y-axis) shifts to position X1 on the verification module (X-axis), and then the PH sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 opens, and M4 starts. After 10 seconds, M4 closes, V3 closes, and V13 closes. ZV09 opens, and after 60 seconds, ZV09 closes. The automatic verification process ends.

[0053] In another example, the calibration process for the turbidity sensor may include: starting the low-turbidity scale stirrer JB1-Turb1, turning on V3 (left-hand), turning on V13, starting M4, and after 10 seconds, turning off M4, turning off V3, and turning off V13. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), the turbidity sensor is moved to position Y2 of the verification module (Y-axis), the peristaltic pump Turb1 is started and stopped after 30 seconds, turning on ZV17 and ZV15, and after 60 seconds, turning off ZV17 and ZV15. The peristaltic pump Turb1 is started again and stopped after 30 seconds, turning on ZV07 for 15 seconds, turning on KT07, and after 10 seconds, turning off ZV07 and KT07, performing the low-turbidity scale calibration. After completion, turning on ZV17 and ZV15, and after 60 seconds, turning off ZV17. ZV16 on, V4 (left-hand pass), M4 started, after 16 seconds, M4 off, V4 off, ZV15 off, ZV16 off. Low-turbidity agitator JB1-Turb1 off, high-turbidity agitator JB2-Turb2 started. After the turbidity sensor moves to Y0 on the verification module (Y-axis), the verification module (Y-axis) moves to X1 on the verification module (X-axis), and then the turbidity sensor moves to Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 started, after 10 seconds, M4 off, V3 off, V13 off. ZV15 on, after 60 seconds, ZV15 off. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), and the turbidity sensor is moved to position Y2 of the verification module (Y-axis). The peristaltic pump Turb2 starts and stops after 30 seconds. ZV17 and ZV15 are turned on, and after 60 seconds, ZV17 and ZV15 are turned off. The peristaltic pump Turb2 starts again and stops after 30 seconds. ZV08 is turned on for 15 seconds, then KT08 is turned on, and after 10 seconds, ZV08 and KT08 are turned off. Turbidity calibration is performed. After completion, ZV17 and ZV15 are turned on, and after 60 seconds, ZV17 is turned off. ZV16 is turned on, V4 (left-hand passage) and M4 are started. After 16 seconds, M4 is turned off, V4 is turned off, ZV15 is turned off, and ZV16 is turned off. The turbidity calibration stirrer JB2-Turb2 is turned off. After the turbidity sensor moves to position Y0 on the verification module (Y-axis), the verification module (Y-axis) shifts to position X1 on the verification module (X-axis), and then the turbidity sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 on, after 10 seconds, M4 off, V3 off, V13 off. ZV15 on, after 60 seconds, ZV15 off. Automatic calibration process ends.

[0054] In another example, the calibration process for the conductivity sensor may include: V3 (left-hand), V13 on, M4 started, after 10 seconds, M4 off, V3 off, V13 off. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), the conductivity sensor is moved to position Y2 of the verification module (Y-axis), the peristaltic pump Cond1 starts and stops after 30 seconds, ZV17 on, ZV13 on, after 60 seconds, ZV17 off, ZV13 off. The peristaltic pump Cond1 starts again and stops after 30 seconds, ZV05 on for 15 seconds, KT05 on, after 10 seconds, ZV05 off, KT05 off, Cond1 calibration is performed, after completion ZV17 on, ZV13 on, after 60 seconds, ZV17 off. ZV14 on, V4 (left-hand pass), M4 started, after 16 seconds, M4 off, V4 off, ZV14 off, ZV14 off. The conductivity sensor moves to Y0 on the verification module (Y-axis), then the verification module (Y-axis) shifts to X1 on the verification module (X-axis), and then the conductivity sensor moves to Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 started, after 10 seconds, M4 off, V3 off, V13 off. ZV13 on, after 60 seconds, ZV13 off. The verification module (Y-axis) shifts to X0 on the verification module (X-axis), the conductivity sensor moves to Y2 on the verification module (Y-axis), peristaltic pump Cond2 starts and stops after 30 seconds, ZV17 on, ZV13 on, after 60 seconds, ZV17 off, ZV13 off. Peristaltic pump Cond2 restarts and stops after 30 seconds. ZV06 opens for 15 seconds, then KT06 opens. After 10 seconds, ZV06 and KT06 close, performing Cond2 calibration. After completion, ZV17 and ZV13 open, and ZV17 closes after 60 seconds. ZV14 opens, V4 (left-hand pass), and M4 starts. After 16 seconds, M4 closes, V4 closes, ZV14 closes, and ZV14 closes again. The conductivity sensor moves to Y0 on the verification module (Y-axis), then the verification module (Y-axis) shifts to X1 on the verification module (X-axis), and then the conductivity sensor moves to Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 opens, and M4 starts. After 10 seconds, M4 closes, V3 closes, and V13 closes. ZV13 opens, and after 60 seconds, ZV13 closes. The automatic calibration process ends. In another example, the low conductivity rating verification process for the conductivity sensor may include: V3 (left-hand open), V13 on, M4 started, and after 10 seconds, M4 off, V3 off, and V13 off. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), the conductivity sensor is moved to position Y2 of the verification module (Y-axis), the peristaltic pump Cond1 is started and then stopped after 30 seconds, ZV17 is on, ZV13 is on, and after 60 seconds, ZV17 is off and ZV13 is off.Peristaltic pump Cond1 restarts and stops after 30 seconds. ZV05 opens for 15 seconds, then KT05 opens. After 10 seconds, ZV05 closes, then KT05 closes, and Cond1 checks. After completion, ZV17 opens, then ZV13 opens, and after 60 seconds, ZV17 closes. ZV14 opens, V4 (left-hand pass), M4 starts, and after 16 seconds, M4 closes, V4 closes, ZV14 closes, and ZV14 closes again. The conductivity sensor moves to Y0 on the verification module (Y-axis), then the verification module (Y-axis) moves to X1 on the verification module (X-axis), and then the conductivity sensor moves to Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 opens, M4 starts, and after 10 seconds, M4 closes, V3 closes, and V13 closes. ZV13 opens, and after 60 seconds, ZV13 closes. The automatic verification process ends. In another example, the high conductivity standard verification process for the conductivity sensor may include: V3 (left-hand), V13 on, M4 started, after 10 seconds, M4 off, V3 off, V13 off. The verification module (Y-axis) moves to position X0 of the verification module (X-axis), the conductivity sensor moves to position Y2 of the verification module (Y-axis), the peristaltic pump Cond2 starts and stops after 30 seconds, ZV17 on, ZV13 on, after 60 seconds, ZV17 off, ZV13 off. The peristaltic pump Cond2 starts again and stops after 30 seconds, ZV06 on, KT06 on, after 15 seconds, ZV06 off, KT06 off, the Cond2 verification is performed, after completion, ZV17 on, ZV13 on, after 60 seconds, ZV17 off. ZV14 on, V4 (left-hand pass), M4 started, after 16 seconds, M4 off, V4 off, ZV14 off, ZV14 off. The conductivity sensor moves to position Y0 on the verification module (Y-axis), then the verification module (Y-axis) shifts to position X1 on the verification module (X-axis), and then the conductivity sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 started, after 10 seconds, M4 off, V3 off, V13 off. ZV13 on, after 60 seconds, ZV13 off. Automatic verification process ends.

[0055] In another example, the dissolved oxygen sensor calibration process may include: V3 (left-hand pass), V13 on, M4 activated, after 10 seconds, M4 off, V3 off, V13 off. The verification module (Y-axis) moves to position X0 of the verification module (X-axis), and the dissolved oxygen sensor moves to position Y0 of the verification module (Y-axis) to perform DO air calibration. After the verification module (Y-axis) moves to position X1 of the verification module (X-axis), the dissolved oxygen sensor moves to position Y2 of the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 activated, after 10 seconds, M4 off, V3 off, V13 off. The automatic calibration process ends. In another example, the dissolved oxygen sensor verification process may include: starting the JB3-DO agitator for oxygen-free water, V3 (left-hand pass), V13 on, M4 activated, after 10 seconds, M4 off, V3 off, V13 off. The verification module (Y-axis) is moved to position X0 of the verification module (X-axis), the dissolved oxygen sensor is moved to position Y2 of the verification module (Y-axis), the peristaltic pump DO starts and stops after 30 seconds, ZV17 and ZV11 are turned on, and after 60 seconds, ZV17 and ZV11 are turned off. The peristaltic pump DO starts again and stops after 30 seconds, ZV04 is turned on for 15 seconds, KT04 is turned on, and after 10 seconds, ZV04 and KT04 are turned off. The dissolved oxygen and anoxic water verification is performed. After completion, ZV17 and ZV11 are turned on, and after 60 seconds, ZV17 is turned off. ZV12 is turned on, V4 (left-hand passage) and M4 are started. After 16 seconds, M4 is turned off, V4 is turned off, ZV11 is turned off, and ZV12 is turned off. The anoxic water agitator JB3-DO is turned off. After the dissolved oxygen sensor moves to position Y0 on the verification module (Y-axis), the verification module (Y-axis) shifts to position X1 on the verification module (X-axis), and then the dissolved oxygen sensor moves to position Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 on, after 10 seconds, M4 off, V3 off, V13 off. ZV11 on, after 60 seconds, ZV11 off. Automatic verification process ends.

[0056] In one possible implementation, the device further includes a booster pump 11; the booster pump 11 is electrically connected to the control module 5; the third end of each of the first three-way solenoid valves 10 is connected to one end of the first straight-through electric ball valve 17; the other end of the first straight-through electric ball valve 17 is connected to the outlet of the booster pump 11. Since the other end of the booster pump 11 is connected to the distilled water tank, distilled water from the distilled water tank can be input into the quality control cup by controlling the booster pump 11, thereby cleaning the quality control cup with distilled water.

[0057] In one possible implementation, the device further includes: a waste liquid tank 12; the third end of the second three-way solenoid valve 19 is connected to the waste liquid tank 12; and the inlet of each peristaltic pump is also connected to the waste liquid tank 12 via a second one-way solenoid valve. This embodiment of the invention, by setting up a waste liquid tank 12 and discharging a portion of the standard liquid into the waste liquid tank 12, avoids pollution caused by directly discharging the standard liquid into a drain pipe.

[0058] In one possible implementation, the reagent cabinet 3 includes: one or more standard solution tanks, the number of which is the same as the number of peristaltic pumps in the peristaltic pump group 4; the reagent cabinet 3 includes: a refrigerated sub-cabinet; dissolved oxygen zero-point standard solution and turbidity standard solution, with the corresponding standard solution tanks disposed inside the refrigerated sub-cabinet; a magnetic stirrer is disposed at the bottom of the refrigerated sub-cabinet. To ensure the special requirements of the conductivity standard solution and turbidity standard solution, a refrigerated cabinet is also provided in this embodiment of the invention, so that the conductivity standard solution and turbidity standard solution can be placed in the refrigerated cabinet. Furthermore, in this embodiment of the invention, by providing a magnetic stirrer below the refrigerated cabinet, the solution can be stirred using the magnetic stirrer before turbidity calibration to meet the requirements of the turbidity standard solution.

[0059] In one possible implementation, the device further includes: a cleaning tank 13, a first three-way electric ball valve 14, and a second three-way electric ball valve 15; the first three-way electric ball valve 14 and the second three-way electric ball valve 15 are electrically connected to the control module 5; the first inlet of the cleaning tank 13 is connected to the outlet of the first three-way electric ball valve 14; the first inlet of the first three-way electric ball valve 14 is connected to the outlet of the second three-way electric ball valve 15 via a booster pump 11; the second inlet of the cleaning tank 13 is connected to the outlet of the second three-way electric ball valve 15; an overflow outlet is provided at the top of the cleaning tank 13, and the overflow outlet is connected to a drain pipe; a drain outlet is provided at the bottom of the cleaning tank 13, and the drain outlet is connected to the drain pipe via a second straight-through electric ball valve 18. In this embodiment of the present invention, the sensor can be located in the cleaning tank 13 before calibration, and the sensor can be cleaned through the cleaning tank 13. Furthermore, distilled water can be introduced into the cleaning tank 13 via the booster pump 11 and the second three-way electric ball valve 15, thereby cleaning the sensor with distilled water.

[0060] In one possible implementation, the device further includes: a third three-way electric ball valve 16; the third three-way electric ball valve 16 is electrically connected to the control module 5; the inlet of the second three-way electric ball valve 15 is connected to the outlet of the third three-way electric ball valve 16; the second inlet of the first three-way electric ball valve 14 is connected to the outlet of the third three-way electric ball valve 16; the first inlet of the third three-way electric ball valve 16 is connected to a tap water pipe; and the second inlet of the third three-way electric ball valve 16 is connected to a compressed air pipe. When the verification module (Y-axis) is located at position X1 of the verification module (X-axis), the sensor can be moved to position Y2 of the verification module (Y-axis), and the test part on the sensor surface is aligned with the cleaning atomizing nozzle position, facilitating cleaning of each sensor. In one example, all components in this embodiment of the present invention are installed in the device cabinet. Before calibration, the sensor can be placed in the cleaning tank 13 for cleaning with distilled water (or pure water), and then moved to the quality control cup group 2 by the verification module (if turbidity verification is performed, the magnetic stirring process is started simultaneously, and the magnetic stirring is turned off after the process is completed). The calibration solution is drawn into the cup by the control of the solenoid valve and the peristaltic pump to rinse the sensor to be calibrated. After rinsing, the verification module lifts the sensor and moves it above the quality control cup group 2. After the calibration solution is drained, the peristaltic pump draws the calibration solution again and re-enters the quality control cup group 2. After the quantification is completed, the calibration solution tube is blown into the verification cup by compressed air. Then the sensor is moved into the quality control cup group 2, and the calibration process is started. After the test data of the sensor to be calibrated is stable, the system automatically records the calibration data signal value into the sensor, completing the calibration process of the sensor. After calibration, the calibration solution in the quality control cup group 2 is drained, and then distilled water (or pure water) is introduced for cleaning. After cleaning, the liquid is drained, and the verification module is moved to the cleaning tank 13 for standby. This completes the automatic calibration process. In another example, the device of this embodiment can also perform automatic verification. Before verification, the sensor is placed in the cleaning tank 13 for cleaning with distilled water (or pure water). Then, it is moved to the quality control cup group 2 by the verification module (if turbidity verification is performed, the magnetic stirring process is started simultaneously, and the magnetic stirring is turned off after the process is completed). The verification liquid is drawn into the cup by the control of the solenoid valve and the peristaltic pump to rinse the sensor. After rinsing, the verification module lifts the sensor and moves it above the quality control cup group 2. After the verification liquid is drained, the peristaltic pump draws the verification liquid again and puts it back into the quality control cup group 2. After the quantification is completed, the verification liquid tube is blown into the verification cup by compressed air. Then, the sensor is moved into the quality control cup group 2, the verification process is started, and after the verification data is stable, the system records the verification data value to complete the verification process of the sensor. After calibration, the calibration solution in the quality control cup group 2 is drained, and then distilled water (or pure water) is introduced for cleaning. After cleaning, the solution is drained, and the verification module is moved to the cleaning tank 13 for standby. At this point, the automatic calibration process is complete.

[0061] In one possible implementation, a temperature sensor is installed on the cleaning tank 13; the temperature sensor is electrically connected to the control module 5. In this embodiment, a temperature detection sensor is also installed at the end of the Y-axis linear module. This temperature detection sensor can be calibrated using the cleaning tank 13 and the temperature sensor. Specifically, before calibration, the temperature detection sensor is placed in the cleaning tank 13. Tap water is introduced into the cleaning tank 13 by controlling an electric ball valve. After the cleaning tank 13 is full, it is left to stand for 3 minutes. Once the temperature measurement of the water body temperature by the temperature detection sensor and the temperature sensor in the cleaning tank 13 is stable, the system automatically records the water temperature calibration data signal value into the sensor, completing the calibration process of the temperature detection sensor, and the automatic calibration process ends. The solution of this embodiment can also be used for verification. Before verification, the sensor is placed in the cleaning tank 13. Tap water is introduced into the cleaning tank 13 by controlling an electric ball valve. After the cleaning tank 13 is full, it is left to stand for 3 minutes. Once the temperature measurement of the water body temperature by the temperature detection sensor and the temperature sensor in the cleaning tank 13 is stable, the system records the verification data value, completing the verification process of the water temperature of the temperature detection sensor.

[0062] In one example, initially, the verification module (Y-axis) is located at position X1 of the verification module (X-axis), and the five-parameter sensor is located at position Y2 of the verification module (Y-axis). The calibration process for the water temperature sensor may include: opening V16 to the right, introducing tap water into the five-parameter cleaning tank, closing V16 after the tank is full, letting it stand for 3 minutes, and performing water temperature calibration after the five-parameter temperature sensor and the PT100 temperature sensor in the cleaning tank have stabilized their measurements of the water temperature. After calibration, opening V13 for 60 seconds and then closing it. The automatic calibration process ends. In another example, the water temperature sensor can also be verified. The specific verification process may include: opening V16 to the right, introducing tap water into the five-parameter cleaning tank, closing V16 after the tank is full, letting it stand for 3 minutes, and performing water temperature verification after the five-parameter temperature sensor and the PT100 temperature sensor in the cleaning tank have stabilized their measurements of the water temperature. After verification, opening V13 for 60 seconds and then closing it. The automatic verification process ends.

[0063] In another example, automatic verification (low turbidity standard): Turbidity low standard agitator JB1-Turb1 starts, V3 (left-hand passage), V13 opens, M4 starts, after 10 seconds, M4 closes, V3 closes, V13 closes. The verification module (Y-axis) moves to position X0 of the verification module (X-axis), the turbidity sensor moves to position Y2 of the verification module (Y-axis), peristaltic pump Turb1 starts and stops after 30 seconds, ZV17 opens, ZV15 opens, after 60 seconds, ZV17 closes, ZV15 closes. Peristaltic pump Turb1 starts again and stops after 30 seconds, ZV07 opens for 15 seconds, KT07 opens, after 10 seconds, ZV07 closes, KT07 closes, low turbidity standard verification is performed, after completion ZV17 opens, ZV15 opens, after 60 seconds, ZV17 closes. ZV16 on, V4 (left-hand pass), M4 started, after 16 seconds, M4 off, V4 off, ZV15 off, ZV16 off. Turbidity low-level stirring JB1-Turb1 off. After the turbidity sensor moves to Y0 on the verification module (Y-axis), the verification module (Y-axis) moves to X1 on the verification module (X-axis), and then the turbidity sensor moves to Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 started, after 10 seconds, M4 off, V3 off, V13 off. ZV15 on, after 60 seconds, ZV15 off. Automatic verification process ends.

[0064] In another example, automatic verification (high turbidity standard): Turbidity standard agitator JB2-Turb2 starts, V3 (left-hand passage), V13 opens, M4 starts, after 10 seconds, M4 closes, V3 closes, V13 closes. The verification module (Y-axis) moves to position X0 of the verification module (X-axis), the turbidity sensor moves to position Y2 of the verification module (Y-axis), peristaltic pump Turb2 starts and stops after 30 seconds, ZV17 opens, ZV15 opens, after 60 seconds, ZV17 closes, ZV15 closes. Peristaltic pump Turb2 starts again and stops after 30 seconds, ZV08 opens for 15 seconds, KT08 opens, after 10 seconds, ZV08 closes, KT08 closes, high turbidity standard verification is performed, after completion ZV17 opens, ZV15 opens, after 60 seconds, ZV17 closes. ZV16 on, V4 (left-hand pass), M4 started, after 16 seconds, M4 off, V4 off, ZV15 off, ZV16 off. Turbidity high-standard stirrer JB2-Turb2 off. After the turbidity sensor moves to Y0 on the verification module (Y-axis), the verification module (Y-axis) moves to X1 on the verification module (X-axis), and then the turbidity sensor moves to Y2 on the verification module (Y-axis). V3 (left-hand pass), V13 on, M4 started, after 10 seconds, M4 off, V3 off, V13 off. ZV15 on, after 60 seconds, ZV15 off. Automatic verification process ends.

[0065] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A calibration device for a water quality analyzer, characterized in that, The device includes: a verification module, a quality control cup set, a reagent cabinet, a peristaltic pump set, and a control module; the verification module and the peristaltic pump set are electrically connected to the control module; The first inlet of the quality control cup in the quality control cup group is connected to the outlet of the peristaltic pump in the peristaltic pump group, and the inlet of the peristaltic pump in the peristaltic pump group is connected to the outlet of the reagent cabinet. The verification module includes: a horizontally arranged X-axis linear module and a vertically arranged Y-axis linear module; the X-axis linear module and the Y-axis linear module are slidably connected, and the Y-axis linear module moves on the X-axis linear module; the movement range of the Y-axis linear module includes the quality control cup group; a sensor group is provided at the lower end of the Y-axis linear module.

2. The water quality analyzer calibration device according to claim 1, characterized in that, The sensor group includes one or more of a pH sensor, a dissolved oxygen sensor, a conductivity sensor, and a turbidity sensor; The quality control cup group includes one or more quality control cups, and the number of quality control cups is the same as the number of sensors in the sensor group; when the number of sensors in the sensor group is multiple, the relative positions between the multiple sensors are the same as the relative positions between the quality control cups in the quality control cup group. The peristaltic pump assembly includes one or more peristaltic pumps; the inlet of each quality control cup is connected to the outlet of one or more peristaltic pumps.

3. The water quality analyzer calibration device according to claim 2, characterized in that, The device further includes: a solenoid valve assembly and a pressure reducing valve; the solenoid valve and the control module are electrically connected. The solenoid valve group includes one or more solenoid valves, and the number of solenoid valves is the same as the number of peristaltic pumps; The inlet of the pressure reducing valve is connected to a compressed air pipe, and the outlet of the pressure reducing valve is connected to one end of each solenoid valve; the other end of each solenoid valve is connected to one end of another solenoid valve, and the other end of each solenoid valve is connected to the inlet and outlet of a peristaltic pump through a check valve.

4. The water quality analyzer calibration device according to claim 2, characterized in that, The device further includes: a first single-way solenoid valve, a first three-way solenoid valve, and a second three-way solenoid valve; the first single-way solenoid valve and the first three-way solenoid valve are electrically connected to the control module; the number of the first single-way solenoid valve and the first three-way solenoid valve are the same as the number of the quality control cups. Each quality control cup is connected to one end of a first single-way solenoid valve; the other end of each first single-way solenoid valve is connected to the first end of a first three-way solenoid valve; the second end of each first three-way solenoid valve is connected to the first end of a second three-way solenoid valve; and the second end of the second three-way solenoid valve is connected to a drain pipe.

5. The water quality analyzer calibration device according to claim 4, characterized in that, The device also includes a booster pump; the booster pump is electrically connected to the control module. The third end of each of the first three-way solenoid valves is connected to one end of the first straight-through electric ball valve; The other end of the first through-type electric ball valve is connected to the outlet of the booster pump.

6. The water quality analyzer calibration device according to claim 4, characterized in that, The device also includes: a waste liquid tank; The third end of the second three-way solenoid valve is connected to the waste liquid tank; the inlet of each peristaltic pump is also connected to the waste liquid tank through a second one-way solenoid valve.

7. The water quality analyzer calibration device according to claim 2, characterized in that, The reagent cabinet includes one or more standard solution tanks, the number of which is the same as the number of peristaltic pumps in the peristaltic pump group; The reagent cabinet includes: a refrigerated sub-cabinet; dissolved oxygen zero-point standard solution and turbidity standard solution, with the corresponding standard solution tanks set inside the refrigerated sub-cabinet; A magnetic stirrer is installed at the bottom of the refrigerated cabinet.

8. The water quality analyzer calibration device according to claim 1, characterized in that, The device further includes: a cleaning tank, a first three-way electric ball valve, and a second three-way electric ball valve; the first three-way electric ball valve and the second three-way electric ball valve are electrically connected to the control module. The first inlet of the cleaning tank is connected to the outlet of the first three-way electric ball valve; the first inlet of the first three-way electric ball valve is connected to the outlet of the second three-way electric ball valve via a booster pump. The second inlet of the cleaning tank is connected to the outlet of the second three-way electric ball valve; The upper part of the cleaning tank is provided with an overflow outlet, which is connected to a drain pipe; The bottom of the cleaning tank is provided with a drain outlet, which is connected to the drain pipe through a second straight-through electric ball valve.

9. The water quality analyzer calibration device according to claim 8, characterized in that, The device further includes: a third three-way electric ball valve; the third three-way electric ball valve is electrically connected to the control module; The inlet of the second three-way electric ball valve is connected to the outlet of the third three-way electric ball valve; The second inlet of the first three-way electric ball valve is connected to the outlet of the third three-way electric ball valve; The first inlet of the third three-way electric ball valve is connected to a tap water pipe; the second inlet of the third three-way electric ball valve is connected to a compressed air pipe.

10. The water quality analyzer calibration device according to claim 8, characterized in that, A temperature sensor is installed on the cleaning tank; the temperature sensor is electrically connected to the control module.

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