Automatic dosing adjusting device for waste water neutralization tank of thermal power plant

Abstract

The utility model discloses an automatic dosing adjusting device for a waste water neutralizing tank of a thermal power plant, which is a system for automatically controlling waste water treatment. The system consists of a central controller, a plurality of medicament storage tanks, a water conveying pipeline, a metering pump, a medicament mixing device, a reverse osmosis water tank and a neutralizing tank. Each medicament storage tank is connected to a header pipe through an independent water conveying branch pipe and a metering pump, and then is conveyed to the medicament mixing device, and the mixed medicament is further treated through the reverse osmosis water tank and finally flows into the neutralization tank for pH value adjustment. The pH detector is arranged in the device and is used for monitoring the pH value of the wastewater in real time, and the chemical adding amount is automatically adjusted through the controller, so that the wastewater is ensured to reach the discharge standard. In addition, the number of the agent storage tanks can be set according to actual needs, stirring blades are arranged in the mixing device to improve the mixing efficiency, and a reverse osmosis membrane is arranged in the reverse osmosis water tank to further purify water. According to the device, the wastewater treatment efficiency and accuracy are improved, the manual operation risk is reduced, the environmental pollution is reduced, and meanwhile, the automation level and the operation cost benefit of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to an automatic dosing and regulating device for the neutralization tank of wastewater in a thermal power plant. Background Art

[0002] A large amount of wastewater is generated during the production process of thermal power plants. These wastewaters usually contain acidic or alkaline substances and need to be neutralized before they can meet the discharge standards. However, the traditional neutralization treatment of wastewater mainly relies on manual operation, which has many problems. First of all, the manual adjustment efficiency is low. Operators need to monitor the pH value of the wastewater on-site and manually adjust the dosing amount. This process is time-consuming and laborious, and the reaction speed is slow. Secondly, poor accuracy is an important problem. The errors of human judgment and operation often make it difficult to achieve precise control of chemical dosing, which may lead to excessive or insufficient dosing of chemicals, affecting the treatment effect and possibly causing waste of resources. In addition, operators are directly exposed to chemicals and wastewater, facing potential health and safety risks. Data recording and analysis are also a challenge. Manual recording of treatment data is prone to errors and is not convenient for long-term storage and analysis, making it difficult to optimize the treatment process. Environmental pollution is also an issue that cannot be ignored. Due to inaccurate control of the chemical dosage, it may lead to excessive use of chemical agents, increasing the environmental pollution load. For the storage and use of some special chemicals, the requirements are relatively high, and manual operation is difficult to meet these requirements, affecting the storage and use safety of chemicals. In terms of response speed, when the wastewater flow or composition changes, the manual adjustment method responds slowly, making it difficult to adjust the dosing amount in a timely manner, affecting the stability of the treatment effect. The high labor intensity is an issue that cannot be ignored. The continuous manual monitoring and adjustment work is of high intensity, which easily makes operators fatigued, affecting work efficiency and accuracy. The high operation cost is also a factor that needs to be considered. The manual operation method has low efficiency, and improper use of chemicals may lead to an increase in treatment costs. Finally, the poor system integration makes it difficult for the traditional method to achieve effective integration with other treatment links, affecting the coordination and efficiency of the overall treatment process. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an automatic dosing and regulating device for the neutralization tank of wastewater in a thermal power plant to solve the problems of the existing technology. The following solutions are proposed by the utility model:

[0004] An automatic chemical dosing and regulating device for the neutralization tank of wastewater in a thermal power plant, including a controller, is characterized in that it includes a plurality of chemical storage tanks. The plurality of chemical storage tanks are connected to a water delivery main pipe through water delivery branch pipes. A metering pump is installed on each water delivery branch pipe. The water delivery main pipe is communicated with a chemical mixing device. A water pump is installed on the water delivery main pipe. The chemical mixing device is communicated with a reverse osmosis water tank through an overflow pipe. The reverse osmosis water tank is communicated with the neutralization tank through a water delivery pipeline. A water pump is installed on the water delivery pipeline between the reverse osmosis water tank and the neutralization tank. A pH detector is installed in the neutralization tank.

[0005] Preferably, the number of the chemical storage tanks is set according to the type of chemical agent.

[0006] Preferably, an electromagnetic valve is provided on each chemical storage tank, and the chemical storage tank is connected to the water delivery branch pipe through the electromagnetic valve.

[0007] Preferably, a stirring blade is rotatably installed inside the chemical mixing device.

[0008] Preferably, the reverse osmosis water tank is provided with a reverse osmosis membrane.

[0009] Preferably, the pH detector is electrically connected to the controller, and the controller is also electrically connected to all electromagnetic valves and water pumps.

[0010] Preferably, the controller controls the input amount of various chemical agents according to the pH value data detected by the pH detector.

[0011] Preferably, the control of the input amount is completed by the controller controlling the opening and closing of the electromagnetic valve according to the metering data detected by the metering pump.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. The device realizes automatic chemical dosing and regulation through an integrated controller, reduces manual operation, and improves the treatment efficiency and accuracy.

[0014] 2. The metering pump is used to accurately transport different chemical agents to ensure that the chemical agents are mixed in accordance with the set ratio, avoiding the risks of chemical agent waste and over-dosing.

[0015] 3. The number and types of chemical storage tanks can be adjusted according to actual needs, enabling the device to treat different types and concentrations of wastewater.

[0016] 4. A stirring blade is installed inside the chemical mixing device to promote the full mixing of the chemical agent and the wastewater, improving the effect of the neutralization reaction.

[0017] 5. The pH detector monitors the pH value of the wastewater in real time and transmits the data to the controller, which automatically adjusts the chemical dosage according to the set pH target value.

[0018] 6. The electromagnetic valve and the water pump in the device are both electrically connected to the controller to ensure that the process can be quickly cut off or adjusted in case of abnormalities, guaranteeing the safety of the system.

[0019] 7. Each component and function of the entire device is carefully designed to form a complete and efficient wastewater treatment system, reducing external intervention and achieving a high degree of integration.

[0020] 8. Automation and precise control reduce the waste of chemicals, extend the service life of the equipment, and lower the operation and maintenance costs.

[0021] 9. By precisely controlling the chemical dosage and efficient mixing, the usage of chemical drugs and environmental pollution are reduced, meeting the environmental protection requirements.

[0022] 10. The device can adapt to the wastewater treatment requirements of thermal power plants of different scales and types, and has strong adaptability and expandability.

[0023] 11. The controller can record the key data during the treatment process, facilitating the later analysis and optimization of the wastewater treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an automatic chemical dosing and regulating device for a neutralization tank of wastewater in a thermal power plant of the present utility model.

[0025] In the figure: 1. Controller; 2. Chemical storage tank; 3. Metering pump; 4. Chemical mixing device; 5. Reverse osmosis water tank; 6. Neutralization tank; 7. pH detector; 8. Electromagnetic valve; 9. Stirring blade. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] An automatic chemical dosing and regulating device for a neutralization tank of wastewater in a thermal power plant includes a controller 1 and a plurality of chemical storage tanks 2. The number of the chemical storage tanks 2 is set according to the type of chemicals. The plurality of chemical storage tanks 2 are connected to a water delivery main pipe through water delivery branch pipes, and an electromagnetic valve 8 is provided on each chemical storage tank 2. The chemical storage tank 2 is connected to the water delivery branch pipe through the electromagnetic valve 8.

[0027] A metering pump 3 is installed on each water delivery branch pipe. The main water delivery pipe is connected to the chemical mixing device 4, and a water pump is installed on the main water delivery pipe. A stirring blade 9 is rotatably installed inside the chemical mixing device 4. The chemical mixing device 4 is connected to the reverse osmosis water tank 5 through an overflow pipe, and the reverse osmosis water tank 5 is connected to the neutralization tank 6 through a water delivery pipe. The reverse osmosis water tank 5 is provided with a reverse osmosis membrane. A water pump is installed on the water delivery pipe between the reverse osmosis water tank 5 and the neutralization tank 6, and a pH detector 7 is installed inside the neutralization tank 6.

[0028] The pH detector 7 is electrically connected to the controller 1, and the controller 1 is also electrically connected to all electromagnetic valves and water pumps. The controller 1 controls the input amount of various chemicals based on the pH value data detected by the pH detector 7. The control of the input amount is completed by the controller 1 controlling the opening and closing of the electromagnetic valve through the metering data detected by the metering pump 3.

Claims

1. An automatic chemical dosing and regulating device for the neutralization tank of wastewater in a thermal power plant, comprising a controller (1), characterized in that It includes medicine storage tanks (2), and there are multiple medicine storage tanks (2). The multiple medicine storage tanks (2) are connected to a water delivery main pipe through water delivery branch pipes. A metering pump (3) is installed on each water delivery branch pipe. The water delivery main pipe is communicated with a medicine mixing device (4). A water pump is installed on the water delivery main pipe. The medicine mixing device (4) is communicated with a reverse osmosis water tank (5) through an overflow pipe. The reverse osmosis water tank (5) is communicated with a neutralization tank (6) through a water delivery pipeline. A water pump is installed on the water delivery pipeline between the reverse osmosis water tank (5) and the neutralization tank (6). A pH detector (7) is installed in the neutralization tank (6).

2. The automatic chemical dosing and regulating device for the neutralization tank of the wastewater in a thermal power plant according to claim 1, characterized in that, The number of the medicine storage tanks (2) is set according to the type of medicine.

3. The automatic chemical dosing and regulating device for the neutralization tank of the wastewater in a thermal power plant according to claim 1, characterized in that, An electromagnetic valve (8) is provided on each medicine storage tank (2), and the medicine storage tank (2) is connected to the water delivery branch pipe through the electromagnetic valve (8).

4. The automatic chemical dosing and regulating device for the neutralization tank of wastewater in a thermal power plant according to claim 1, wherein, A stirring blade (9) is rotatably installed inside the medicine mixing device (4).

5. The automatic chemical dosing and regulating device for the neutralization tank of the wastewater in a thermal power plant according to claim 1, characterized in that, The reverse osmosis water tank (5) is provided with a reverse osmosis membrane.

6. The automatic chemical dosing and regulating device for the neutralization tank of the wastewater in a thermal power plant according to claim 1, characterized in that, The pH detector (7) is electrically connected to a controller (1), and the controller (1) is also electrically connected to all electromagnetic valves and water pumps.

7. The automatic chemical dosing adjustment device for the neutralization tank of wastewater in a thermal power plant according to claim 1, wherein, The controller (1) controls the input amount of various medicines according to the pH value data detected by the pH detector (7).

8. The automatic chemical dosing and regulating device for the neutralization tank of the wastewater in a thermal power plant according to claim 7, characterized in that, The control of the input amount is completed by the controller (1) controlling the opening and closing of the electromagnetic valve according to the metering data detected by the metering pump (3).

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