Monitoring control device capable of automatically adjusting dosage in high-density water

Abstract

The utility model relates to a monitoring control device capable of automatically adjusting the dosage in high-density water. River water is discharged to the outside after being treated step by step by a coagulation tank, a flocculation tank and a sedimentation tank; a first dosing pump communicated with the first medicament storage tank and a second dosing pump communicated with the second medicament storage tank are arranged on the coagulation tank; a water quality monitoring module is arranged on the water outlet of the sedimentation tank; a flow meter is arranged on the water inlet of the coagulation tank; the first dosing pump, the second dosing pump, the flow meter and the water quality monitoring module are electrically connected with the PLC. The water quality monitoring module and the flow meter respectively monitor the water quality of a water outlet of the sedimentation tank and the flow of water flowing into the high-density water production system in real time and transmit data to the PLC, and the PLC calculates the chemical dosage required under the current working condition according to the received data and controls the first chemical feeding pump and the second chemical feeding pump to operate; the dosage of the medicament is automatically adjusted so as to meet the treatment requirement of the sedimentation tank; the automation degree is high, and timely problem finding and adjustment are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a monitoring and control device that can automatically adjust the dosage of chemicals in high-density water treatment. Background Technology

[0002] The raw water pretreatment system uses two 150m³ sets. 3 The treatment is carried out in a steel high-density sedimentation tank, and is equipped with one set each of automatic dosing systems for coagulants and coagulant aids, and one set of fully automatic chlorination system.

[0003] The amount of chemicals added to the existing steel high-density sedimentation tank cannot be accurately controlled. The amount of chemicals added can only be adjusted based on previous trial operation and operational experience, resulting in a large waste of chemical chemicals. In addition, the original operation and control were mainly manual, with a low degree of automation, which is not conducive to timely detection and adjustment of problems. Utility Model Content

[0004] The technical problem to be solved by this invention is to develop a monitoring and control device that can automatically adjust the dosage of chemicals in high-density water treatment, so as to automatically add chemicals.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment includes a first chemical storage tank, a second chemical storage tank, a first dosing pump, a second dosing pump, a PLC, a flow meter, and a water quality monitoring module. River water is discharged to the outside after being treated in stages through a coagulation tank, a flocculation tank, and a sedimentation tank. The coagulation tank is equipped with a first dosing pump connected to the first chemical storage tank and a second dosing pump connected to the second chemical storage tank. The sedimentation tank outlet is equipped with a water quality monitoring module. The coagulation tank inlet is equipped with a flow meter. The first dosing pump, the second dosing pump, the flow meter, and the water quality monitoring module are all electrically connected to the PLC.

[0007] The beneficial effects of this utility model are: the water quality monitoring module and the flow meter monitor the water quality at the outlet of the sedimentation tank and the water flow into the high-density water treatment system in real time, and transmit the data to the PLC. Based on the received data, the PLC calculates the required dosage of the reagent under the current operating conditions, and controls the operation of the first and second dosing pumps; automatically adjusts the dosage of the reagent to meet the treatment requirements of the sedimentation tank; has a high degree of automation, which facilitates timely detection and adjustment of problems.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the water quality monitoring module includes a CQ1 pH meter, a CQ2 conductivity meter, a CQ3 turbidity meter, and a PT temperature sensor, which are sequentially arranged at the outlet of the sedimentation tank.

[0010] Furthermore, a network transmission module is installed on the PLC.

[0011] Furthermore, the first reagent storage tank is used to store sodium hypochlorite solution, and the second reagent storage tank is used to store PACPAM solution.

[0012] Furthermore, the PLC is equipped with a touch screen or human-machine interface.

[0013] Furthermore, the PLC is electrically connected to an external application management module. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment according to the present invention.

[0015] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0016] 1. First reagent storage tank; 2. Second reagent storage tank; 3. First dosing pump; 4. Second dosing pump; 5. PLC; 6. CQ1 pH meter; 7. CQ2 conductivity meter; 8. CQ3 turbidity meter; 9. Temperature sensor; 10. Flow meter; 11. Coagulation tank; 12. Flocculation tank; 13. Sedimentation tank. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0018] like Figure 1 As shown in Embodiment 1 of this utility model, a monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment includes a first chemical storage tank 1, a second chemical storage tank 2, a first dosing pump 3, a second dosing pump 4, a PLC 5, a flow meter 10, and a water quality monitoring module. River water is discharged to the outside after being treated in stages through a coagulation tank 11, a flocculation tank 12, and a sedimentation tank 13. The coagulation tank 11 is equipped with a first dosing pump 3 connected to the first chemical storage tank 1 and a second dosing pump 4 connected to the second chemical storage tank 2. A water quality monitoring module is installed at the outlet of the sedimentation tank 13. A flow meter 10 is installed at the inlet of the coagulation tank 11. The first dosing pump 3, the second dosing pump 4, the flow meter 10, and the water quality monitoring module are all electrically connected to the PLC 5.

[0019] The water quality monitoring module and flow meter 10 monitor the water quality at the outlet of sedimentation tank 13 and the water flow into the high-density water treatment system in real time, and transmit the data to PLC5. Based on the received data, PLC5 calculates the required dosage of chemicals under the current operating conditions. PLC5 controls the operation of the first dosing pump 3 and the second dosing pump 4; automatically adjusts the dosage of chemicals to meet the treatment requirements of sedimentation tank 13; has a high degree of automation, which is conducive to timely detection and adjustment of problems.

[0020] This utility model, Embodiment 2, discloses a monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment. Based on Embodiment 1, the water quality monitoring module includes a CQ1 pH meter 6, a CQ2 conductivity meter 7, a CQ3 turbidity meter 8, and a PT temperature sensor 9. These components are sequentially arranged at the outlet of the sedimentation tank 13. The device is used to monitor the water quality parameters in the sedimentation tank 13 in real time: pH value, conductivity, turbidity, and temperature, thereby accurately adjusting the dosage of chemicals to meet the treatment requirements of the sedimentation tank 13.

[0021] This utility model, in its third embodiment, provides a monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment. Based on embodiment 1, a network transmission module is added to the PLC5. This allows for real-time transmission of field data to a remote server or central control room, enabling remote monitoring and fault diagnosis.

[0022] This utility model, in embodiment 4, discloses a monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment. Based on embodiment 1, the first chemical storage tank 1 stores sodium hypochlorite solution, and the second chemical storage tank 2 stores PACPAM solution (polyaluminum chloride and polyacrylamide solution). Polyaluminum chloride is used as a coagulant, polyacrylamide as a coagulant aid, and sodium hypochlorite as a bactericide and algaecide, respectively used for raw water clarification, sedimentation, and sterilization / algae removal. The pretreated effluent is used for industrial water applications.

[0023] This utility model, in Embodiment 5, discloses a monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment. Based on Embodiment 1, the PLC5 is equipped with a touchscreen or human-machine interface. This interface displays the current operating status, parameter settings, alarm information, etc., facilitating monitoring and debugging by operators.

[0024] Embodiment 6 of this utility model discloses a monitoring and control device that can automatically adjust the dosage of chemicals in high-density water treatment. Based on Embodiment 1, the PLC5 is electrically connected to an external application management module. Data is stored, analyzed, and alarm processed on a remote server or in a central control room, supporting remote parameter setting and fault diagnosis.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment, characterized in that, The system includes a first chemical storage tank (1), a second chemical storage tank (2), a first dosing pump (3), a second dosing pump (4), a PLC (5), a flow meter (10), and a water quality monitoring module. River water is discharged to the outside after being treated in stages through a coagulation tank (11), a flocculation tank (12), and a sedimentation tank (13). The coagulation tank (11) is equipped with a first dosing pump (3) connected to the first chemical storage tank (1) and a second dosing pump (4) connected to the second chemical storage tank (2). The water quality monitoring module is installed at the outlet of the sedimentation tank (13). The flow meter (10) is installed at the inlet of the coagulation tank (11). The first dosing pump (3), the second dosing pump (4), the flow meter (10), and the water quality monitoring module are all electrically connected to the PLC (5).

2. The monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment according to claim 1, characterized in that, The water quality monitoring module includes a CQ1 pH meter (6), a CQ2 conductivity meter (7), a CQ3 turbidity meter (8), and a PT temperature sensor (9). The CQ1 pH meter (6), the CQ2 conductivity meter (7), the CQ3 turbidity meter (8), and the PT temperature sensor (9) are arranged sequentially at the outlet of the sedimentation tank (13).

3. The monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment according to claim 1, characterized in that, A network transmission module is installed on the PLC (5).

4. The monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment according to claim 1, characterized in that, The first reagent storage tank (1) is used to store sodium hypochlorite solution, and the second reagent storage tank (2) is used to store PAC PAM solution.

5. The monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment according to claim 1, characterized in that, The PLC (5) is equipped with a touch screen or human-machine interface.

6. A monitoring and control device for automatically adjusting the dosage of chemicals in high-density water treatment according to any one of claims 1 to 5, characterized in that, The PLC (5) is electrically connected to the external application management module.

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