Overview
A pH dosing system is a critical component in industries requiring precise pH control. It consists of a dosing pump, chemical storage tank, pH sensor, and control unit. The system automatically injects acids (e.g., sulfuric acid) or alkalis (e.g., sodium hydroxide) to maintain optimal pH levels, ensuring process efficiency and regulatory compliance. These systems are widely used in water treatment plants, chemical manufacturing, and food processing. Advanced models feature programmable logic controllers (PLCs) for seamless integration with SCADA systems, enabling remote monitoring and data logging.
Structure and Working Principle
The core components include a chemical storage tank, metering pump, pH probe, and control panel. The pH sensor continuously measures the solution's acidity/alkalinity and sends data to the controller. If the pH deviates from the setpoint, the pump activates to dose the required chemical. Modern systems use peristaltic or diaphragm pumps for accurate delivery, minimizing overshooting. Some designs incorporate redundant sensors and pumps for fail-safe operation. The control algorithm (e.g., PID) adjusts dosing rates dynamically to maintain stability, even under fluctuating process conditions.
Key Features
1. **Automation**: Reduces manual intervention with real-time feedback loops. 2. **Modularity**: Scalable for small laboratories or large industrial plants. 3. **Compatibility**: Constructed with materials resistant to corrosive chemicals (e.g., PTFE-lined pumps). Additional features may include leak detection alarms, drip trays, and automated calibration routines. High-end systems offer cloud connectivity for predictive maintenance and trend analysis, helping optimize chemical consumption.
Application Areas
1. **Wastewater Treatment**: Neutralizes acidic/alkaline effluents before discharge. 2. **Boiler Water Conditioning**: Prevents scale and corrosion in power plants. 3. **Food Industry**: Controls pH in brewing, dairy, and beverage production. Other applications include swimming pool sanitation, pharmaceutical manufacturing, and metal surface treatment. Custom configurations are available for harsh environments, such as offshore oil rigs or mining operations.
Maintenance and Precautions
Regular maintenance includes pH probe cleaning (using 0.1M HCl for deposits), pump diaphragm inspection, and tank level checks. Always wear PPE when handling chemicals and ensure proper ventilation. Avoid incompatible material pairings (e.g., PVC with concentrated sulfuric acid). Calibrate sensors monthly using buffer solutions (pH 4.0, 7.0, 10.0). Log maintenance activities to comply with ISO 9001 or GMP standards where applicable.
B2B Procurement Guide
When sourcing a pH dosing system, specify: 1. **Flow Range**: 0.1–1,000 L/h typical. 2. **Chemical Type**: Concentrations and viscosities. 3. **Accuracy**: ±0.1 pH is standard; ±0.01 pH for critical processes. Request certifications like ATEX for explosive environments or FDA-compliant materials for food contact. Compare lead times (commonly 4–8 weeks) and after-sales support. Consider total cost of ownership, including spare parts (e.g., pump heads, valves) and energy consumption.
Related Manufacturers
- 主营：溶气气浮机、机械格栅、一体化污水处理设备、全自动加药装置、石英砂过滤器、重力阀过滤器、周边转动刮泥机
- 主营：板式换热器、板式换热机组、容积式换热器、加药装置、壳管式换热器、全程综合水处理、定压补水装置、管壳式换热器、容积式换热机组、定压补水真空脱气装置
- 主营：实验室污水处理设备、口腔污水处理设备、小型医疗污水处理设备、加药箱PE加药装置、PCR核酸检测污水处理设备、医院污水处理设备、学校实验室污水处理设备、医院实验室废水处理设备、诊所污水处理设备、理化污水处理设备、实验室废水处理设备、臭氧发生器、口腔废水处理、化验室污水处理、医学院实验室污水处理设备、学校实验室废水处理设备、污水处理
- 主营：净水器、过滤器、搅拌机、加药机、加药装置、处理加药桶、吸泥机、刮泥机、格栅机、压滤机、脱水机、溶药机、帘式膜、投药机、超滤膜、污泥处理、废水处理、脱水设备、过滤设备、气浮设备、排泥设备、溶药装置、分离设备、水产养殖、立式搅拌桶
- 主营：一体化污水处理设备、气浮机、净水设备、加药设备、过滤器、生活污水处理设备、石灰投加装置、活性炭投加装置
- 主营：流量计、电磁流量计、超声波液位计、在线ph计、物位计、压力变送器、电导率、溶氧仪、浊度仪、液位计、料位仪、超声波流量计、无纸记录仪、在线orp计、污泥浓度计、温度传感器、涡街流量计、雷达液位计、数显表、电压变送器、电流变送器、信号隔离器、冷热量表、热式气体质量流量计
- 主营：纯化水设备、超纯水设备、纯水设备、加药设备、PH自动加药系统、软化水设备、电解水设备、中水回用设备、超滤设备、去离子水设备、单级反渗透设备、反渗透纯水机、0.2吨纯水制备机、模块制水一体机、工业小型制水机、超纯制备制水机、0.2吨制水一体机、200L纯水制水装置、0.2吨模块制水机、0.2吨纯水处理器、工业小型纯水机、0.2t制水一体机、纯水机、200升一体式制水机、工业反渗透设备
- 主营：实验室污水处理设备、实验室废水处理设备、医疗污水处理设备、全自动加药装置、口腔污水处理设备、化学实验室废液处理设备、生物实验室废水处理设备、理化废水处理设备、小型医疗废水处理设备、实验室污水废水处理设备、学校实验室污水处理设备、pcr实验室污水处理设备、污水处理设备、医疗废水处理设备、污水处理、化学实验室废水处理设备、学校实验室废水处理设备、实验室综合污水处理设备、实验室综合废水处理设备、生活污水处理设备、诊所污水处理设备、牙科污水处理设备、一体化污水处理设备
- 主营：压滤机、智能超高压叠层压滤机、污泥脱水机、全自动加药装置、高压带式压滤机、吸泥机、污泥深度处理设备、橡胶带式真空过滤机、皮带输送机、污泥连续深度脱水设备、市政污泥、液压压滤机、刮泥机、超高压叠层脱水机、一体式污泥深度脱水机、真空皮带脱水机、真空过滤机、带式压榨机、带式果汁压榨机、污泥垂直压滤脱水机、污泥协同、带式果蔬压榨生产线、梨苹果压榨机、污水厂、石膏
- 主营：塑料水塔、立式塑料桶、卧式储罐、加药箱、PE圆桶、搅拌罐、塑料储罐、塑料桶、5吨塑料桶、10吨塑料桶、15吨塑料桶、20吨塑料桶、30吨塑料桶、40吨塑料桶、50吨塑料桶、立式储罐、减水剂复配设备
- 主营：刮泥机、压榨机、压滤机、加药装置、吸泥机、污泥料仓、果蔬压榨、尾矿脱水、大型水果榨汁机、带式污泥压滤机、矿山污泥、生活污水厂处理设备、市政污泥脱水、真空皮带脱水机、高压带式压滤机、污泥深度脱水设备、市政污水厂设备、智能超高压叠层压滤机、真空过滤机、立式压滤机、污泥垂直压滤脱水机、一体式污泥深度脱水机、脱硫石膏处理、果蔬压榨生产线、污泥处置中心
- 主营：传感器、水位开关、隔膜法兰、在线PH加药控制器、氧量检测、风机压力、余氯检测仪、防爆水位物、气体报警器、扬尘监测仪、水质检测仪、开关控制器、超声波明渠、检测分析仪、厚度检测仪、定量控制仪、分体式流量计、蒸汽压缩空气、浑浊度检测仪、超声波液位计、音叉液位开关、电导率测试仪、电子数显流量、磁翻板液位计、高温防爆射频、氧浓度检测仪
- 主营：接触室、格栅机、搅拌机、加药装置、气浮机、消毒池、气浮设备、粉碎格栅、气浮装置、提升泵站、预制泵站、一体化气机、一体式泵站、粉碎性格栅、沉淀一体机、环流搅拌器、低速推流器、格栅破碎机、潜水搅拌器、格栅除污机、潜水推流器、水下推流器、玻璃钢泵站、粉碎型格栅、一体化泵站
- 主营：滗水器、吸泥机、气浮机、加药搅拌装置、加药装置、过滤罐、刮吸泥、过滤器、泥沙分离器、刮泥机、沉淀池、滤布滤池、电镀废水处理设备、化学污水处理设备、处理废水设备、溶气气浮机、一体化污水处理设备
- 主营：蒸汽分汽缸、分集水器、锅炉软化水软水器、全自动定压补水机组、磷酸盐加药装置、变频供水机组、无负压供水机组、板式换热器、换热机组(整体式换热、全程综合水处理器、旋流除砂器、反冲洗过滤器、自清洗过滤器、旁流水处理器、高频电子水处理器、无塔供水压力罐、各类非标压力容器、中央空调循环水设备、机械过滤器、毛发聚集器、蓝式过滤器、气压罐(膨胀罐)、变频恒压供水设备、无负压供水设备、浮动盘管换热器、真空脱气机
- 主营：定压补水装置、真空脱气机、螺旋杂质除污器、全自动加药装置、冷凝器胶球在线清洗装置、隔油提升一体化装置、全程水处理器、常压式定压补水排气装置、板式换热器、容积式换热器、污水提升一体化装置、管壳式换热器、全自动软水器、旁流水处理器、多介质过滤器、物化全程水处理器、换热机组、分集水器、石英砂过滤器、紫铜螺旋网、紫铜滤芯、管刷在线清洗装置配件