1. Project Background

As a key enterprise in the energy sector, Guoneng's Shandong power plant places extremely high demands on the stability and efficiency of its circulating water system in its production operations. The plant's circulating water system features large circulation volumes and uses seawater for make-up water. The high chloride ion content and volatility in seawater pose significant challenges to circulating water treatment. Traditional dosing methods struggle to accurately address complex and variable water quality conditions, often leading to overdosing or underdosing, which not only increases operating costs but may also affect normal equipment operation and shorten equipment lifespan. Against this backdrop, a power plant in Shandong chose to cooperate with Modaodao (Shandong) Measurement and Control Equipment Co., Ltd. to introduce a precise monitoring intelligent dosing control system to solve the challenges of circulating water treatment.

2. Analysis of Project Challenges

(1) Large circulation volume and high monitoring difficulty

The circulating water system at a power plant in Shandong has a large circulation volume, and water quality parameters may vary across different regions and time periods. This requires online monitoring instruments to possess high precision, rapid response, and broad coverage capabilities to accurately capture dynamic changes in water quality and provide reliable data for subsequent dosing control.

(2) Seawater replenishment, prominent chloride ion issues

Seawater, as a water source, has much higher chloride ion content than ordinary freshwater, and is affected by marine environment, tides, and other factors, causing significant fluctuations in chloride ion concentration. High chloride ion environments accelerate equipment corrosion, placing stricter requirements on the selection and dosage of circulating water treatment agents. Traditional dosing methods are difficult to precisely adjust according to real-time changes in chloride ions, which can easily lead to accelerated equipment corrosion or chemical waste.

3. Core Project Solutions

(1) Self-produced online monitoring instruments for comprehensive real-time monitoring

Relying on its strong R&D and production capabilities, Mozhidao Measurement & Control has customized a series of online monitoring instruments suitable for seawater environments for a power plant in Shandong under Guoneng. These instruments cover monitoring of key water quality parameters such as chloride ions, sulfate ions, alkalinity, hardness, calcium hardness, COD, residual chlorine, pH, conductivity, and turbidity, featuring high precision, high stability, and strong anti-interference capability. By reasonably arranging monitoring points at key points in the circulating water system, comprehensive, real-time online monitoring of water quality has been achieved, providing accurate and timely data support for smart dosing regulation.

For example, to address the issue of high and fluctuating chloride ion concentrations in seawater replenishment, a specially developed high-precision chloride ion online monitoring device can quickly and accurately measure chloride ion content, reflecting changes in chloride ion concentration in real time and providing precise reference for dosing regulation.

(2) Intelligent analysis for automatic and precise dosing

Based on water quality data collected by online monitoring instruments, the system's intelligent analysis software employs advanced data processing algorithms and models to predict and analyze water quality trends in real time. Based on preset water quality control standards and equipment anti-corrosion requirements, the system automatically calculates the type and dosage of the currently required chemical, precisely controls the operation of the dosing equipment, and achieves automation and intelligence in dosing.

When an increase in chloride ion concentration is detected, the system automatically increases the amount of corrosion inhibitor added to effectively suppress equipment corrosion; When the pH deviates from the normal range, the system promptly adjusts the dosage of acid-base regulator to quickly restore the pH to the set value, ensuring stable circulating water quality. The entire dosing process requires no manual intervention, greatly improving the precision and timeliness of dosing.

(3) Optimize chemical formulations and reduce chemical dosage

The R&D team at Mozhidao Measurement & Control conducted in-depth research and optimization of the chemical formulation based on the characteristics of seawater circulating water at a power plant in Shandong under Guoneng. Through extensive experiments and hands-on practice, a series of efficient and environmentally friendly chemical combinations have been selected, which can minimize the amount of chemicals added while meeting water quality treatment requirements.

For example, using a new composite corrosion inhibitor increases its corrosion inhibition effect by 30% compared to traditional chemicals, while reducing dosage by 20%; The optimized scale inhibitor dispersant better adapts to seawater quality, effectively prevents equipment scaling, and reduces dosage by 30%. By optimizing the formulation, not only is the cost of the medicine reduced, but the environmental impact of the agent is also decreased.

4. Project Highlights Presented

(1) Customized design to meet actual needs

Taking into account the special working conditions and requirements of the circulating water system at a power plant in Shandong under Guoneng, the design was customized from the selection and installation location of online monitoring instruments to the algorithm models for intelligent analysis software. Ensuring the system can accurately adapt to the seawater environment and the characteristics of high circulation volume, providing the most suitable solution for the power plant.

(2) Advanced technology and outstanding performance

Our self-produced online monitoring instruments use advanced sensor and signal processing technologies, offering high precision, high stability, and strong anti-interference capabilities. Intelligent analysis software utilizes advanced technologies such as big data and artificial intelligence to enable deep mining and precise analysis of water quality data, providing scientific basis for dosing regulation.

(3) Integrated services for worry-free support throughout the process

Mozhidao Measurement & Control provides integrated services for the project, covering everything from solution design, equipment supply, installation and commissioning to after-sales operation and maintenance. During project implementation, professional technical staff follow up throughout, ensuring every step is operated strictly according to standards and specifications. After project delivery, we establish a comprehensive after-sales service system, providing customers with 24×hour technical support and maintenance services, promptly resolving issues encountered during use, ensuring customers have no worries.

5. Project Results and Feedback

(1) Significant Results, Data Speaks for Itself

After the project was implemented, the operating condition of the circulating water system at a power plant in Shandong greatly improved. Water quality indicators are more stable, with chloride ion concentration fluctuation within a reasonable range and pH fluctuation within ±0.2; Dosing volume is reduced by 30% compared to traditional methods, effectively lowering operating costs. At the same time, equipment corrosion rates are significantly reduced, equipment service life is extended, and maintenance and replacement costs are reduced.

(2) Highly recognized by customers and well-known by word of mouth

A power plant in Shandong from Guoneng gave high praise to Mozhidao Measurement and Control's precise monitoring and intelligent dosing control system. A relevant person in charge of the power plant stated: "The project team at Mozhidao Measurement & Control is highly professional and attentive. The solutions they provided us have truly solved our challenges in seawater recycling water treatment." The system operates stably and reliably, with remarkable results, making an important contribution to energy conservation, emission reduction, and safe production at our power plant. "The successful implementation of this project has also established a strong brand image for Modao Measurement & Control in the power industry, winning the trust and recognition of more customers.

Modao Measurement & Control, relying on advanced technology, high-quality products, and attentive service, successfully helped Guoneng Shandong Power Plant achieve an intelligent upgrade in seawater circulating water treatment. In the future, we will continue to uphold the principles of innovation, professionalism, and service, providing high-quality industrial automation solutions to more enterprises and jointly promoting green and sustainable development in the industry.