Case 1: Shandong Lubei Wanrun Intelligent Energy Co., Ltd.

Customer Requirements:
Lubei Wanrun produces new energy materials and generates high-humidity, highly corrosive fluoride-containing exhaust gas (containing HF, HCl, dust, etc.) during its processes. The original fans suffered from corrosion-induced leakage, rapid efficiency degradation, and high maintenance costs. The upgrade requirements were:

1. Adaptability to extreme corrosive environments

2. High energy efficiency and low maintenance

3. Intelligent management and control

Our Advantages:
In response to the customer’s needs, we collaborated with our technical team to develop a tailored solution, overcoming the challenges of treating high-humidity, highly corrosive exhaust gas in the new energy materials industry. We helped the customer achieve operational goals of "zero leakage, ultra-low energy consumption, and smart operation", establishing this project as a benchmark case for exhaust gas treatment in the lithium battery materials supply chain. It provides a comprehensive model for similar projects, covering reliable design for extreme conditions, full-process energy efficiency optimization, and digitalized operation and maintenance.

Solution:

Customer Feedback:
"The FRP fans demonstrate exceptional corrosion resistance in fluoride-containing exhaust gas environments. Since commissioning, there have been zero leaks, and maintenance costs have been reduced by 60%. The variable frequency system saves us over ￥800,000 annually in electricity costs, and the exhaust gas emission concentration consistently meets the Integrated Emission Standard of Air Pollutants (GB 16297-1996), laying a solid foundation for the project’s environmental compliance approval."

Case 2: Shandong Luxi Chemical Group Co., Ltd.

Customer Requirements:
Shandong Luxi Chemical Group Co., Ltd. is one of China’s large comprehensive chemical enterprises, primarily engaged in the production of fertilizers, advanced chemical materials, and fine chemicals. Their production processes involve multiple corrosive gases and particulate matter, demanding high standards for equipment materials. With large-scale production lines and high total exhaust emissions, fluctuating production loads lead to frequent changes in airflow demand, requiring explosion-proof design to mitigate gas combustion risks.

Our Advantages:
To address the exhaust treatment system requirements, our team developed a customized fan solution:

• Designed for high-pressure scenarios (e.g., front-end of catalytic combustion systems), featuring high-temperature and corrosion-resistant properties.

• Capable of diluting and conveying VOCs in low-oxygen environments, equipped with explosion-proof motors and sealed structures.

Solution:

Customer Feedback:
"After installation, your company’s leadership conducted on-site tests and expressed satisfaction with the fans. Since adopting your variable frequency control, the overall energy consumption of the fan system has decreased, significantly reducing electricity usage. From installation to date, the equipment has operated continuously with a malfunction rate below 1%."

Case 3: Chongqing Renyuan Environmental Protection Project – High-Efficiency Deodorization System

Client Needs:
Chongqing Renyuan undertook a malodorous gas treatment project for a chemical industrial park. The goal was to address composite high-concentration malodorous gases generated in storage tank areas, wastewater treatment stations, and temporary solid waste storage facilities. The existing system suffered from low treatment efficiency, rapid equipment corrosion, and high operational costs.

Our Advantages:

1. Chemical-Grade Customized Technology:
   Developed corrosion-resistant centrifugal fans capable of withstanding harsh environments (pH 0-14, temperatures below 200°C).

2. Intrinsic Safety Design:
   Fans equipped with LEL (Lower Explosive Limit) real-time monitoring and an emergency dilution system. Automatically injects nitrogen when combustible gas concentrations exceed limits to prevent explosion risks.

Solution:

Client Feedback:
"After commissioning the XDG system, the odor concentration at the park boundary dropped from 8,000 AU/m³ to 50 AU/m³, establishing a safe and low-carbon benchmark for odor treatment in chemical industrial parks!"

Site Photos: [Attached]

Notes:

• FRP: Fiberglass Reinforced Plastic.

• LEL: Lower Explosive Limit monitoring ensures operational safety in volatile environments.

• IP55 Protection: Dust-tight and protected against water jets.

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Case 4: Taizhou Futong Chemistry Co., Ltd.

Customer Requirements:
Futong Chemistry Co., Ltd. is a high-tech enterprise specializing in the R&D and production of dye intermediates, pharmaceutical intermediates, and high-end fine chemicals. Their processes generate strong acidic gases and organic acidic compounds, demanding extremely high corrosion resistance from equipment materials.

Our Advantages:
To address Futong Chemistry’s exhaust gas characteristics, the project adopted a "multi-stage treatment + intelligent regulation" technical approach. The fan configuration included the following features:

Solution:

Customer Feedback:

• Technological Integration and Innovation: Deep integration of corrosion-resistant materials with intelligent control systems effectively addresses challenges in chemical exhaust treatment.

• Circular Economy Extension: Exploration of waste heat recovery for plant heating or steam supply further enhances resource utilization efficiency.

• Digital Empowerment: Implementation of equipment condition monitoring and big data analytics drives full lifecycle health management of equipment.

Case 5 Shanghai University of Applied Sciences Fengxian Campus Laboratory

Customer demands:

The laboratory of Shanghai University of Applied Sciences Fengxian Campus requires 68 high-efficiency, low-noise, low-vibration fiberglass centrifugal fans. The fan equipment is 2-3 meters away from the laboratory. The indoor decibel level is no more than 35 decibels during the experiment.

Our company's advantages:

Bringing the customer's demands back to the company to organize departments to discuss (R&D Department) (Project Department) (Technical Department) (Sales Department). After discussing the internal simulation of the factory, the decibel requirements were finally met. Invite the general contractor and school leaders to the factory for inspection and testing. After the project managers of both parties confirmed the details, they went through the bidding process and finally won the bid. The delivery was delivered to the site in advance at the time required by the school, and the final on-site commissioning was completed.

Solution:

Product serial number Product name Product model Fan configuration Remarks

1 FRP centrifugal fan GFB800C with FRP soundproof box and variable frequency speed regulation

2 FRP centrifugal fan GFB630C with FRP soundproof box and variable frequency speed regulation

Customer praise:

After installation, the school leaders conducted on-site testing and the fan noise met the above conditions.

Case 6 Suzhou Sko Semiconductor Co., Ltd.

Customer demands:

Organic waste gas (VOCs): isopropyl alcohol (IPA), propylene glycol methyl ether acetate (PGMEA), etc. generated in the photoresist coating and development process, with a concentration of about 80-150mg/m³ and an air volume of 60,000m³/h35;

Acidic waste gas: sulfuric acid mist and hydrofluoric acid (HF) gas in the etching and cleaning process, with large pH fluctuations (1.5-3.0), requiring neutralization treatment;

Special gas: ammonia (NH₃) and silane (SiH₄) residues generated in the CMP (chemical mechanical polishing) process.

Our company's advantages:

Collaborative engineering company established a project team for organic waste gas: using the "zeolite rotor adsorption concentration + regenerative thermal incineration (RTO)" combined process, the concentration multiple is 20 times, and the VOCs removal rate is ≥97%35.

Technical highlights: The rotor uses hydrophobic zeolite, which can withstand humidity fluctuations; RTO heat recovery efficiency is ≥95%, and natural gas consumption is reduced by 40%5.

Acidic waste gas: Vertical double-layer PP scrubber (diameter 2.5m), equipped with pH automatic dosing system, sulfuric acid mist removal rate ≥98%24.

Ammonia treatment: Exclusive water scrubber + sodium hypochlorite oxidation process, NH₃ emission concentration ≤15mg/m³.

Solution:

Product serial number Product name Product model Fan configuration Remarks

1 FRP centrifugal fan GFB560C Variable frequency motor Variable frequency speed regulation

Customer praise:

Third-party testing shows that the emission concentration of non-methane total hydrocarbons is ≤45mg/m³ and sulfuric acid mist is ≤25mg/m³, which is better than the DB32/4041-2021 limit;

Factory boundary noise is ≤55dB (A), meeting the "Environmental Noise Emission Standards for Factory Boundaries of Industrial Enterprises" (GB12348-2008)

Case 7: Jiangsu Zhongxinhua Electronic Industrial Park (Huai'an)

Customer Requirements:

• Acidic Waste Gas: Sulfuric acid mist and hydrogen chloride gas generated from electroplating processes, with significant pH fluctuations (1.5-3.0) and high corrosiveness (Note 16).

• Organic Waste Gas (VOCs): Volatile solvents such as isopropanol (IPA) and toluene released during solder mask and legend printing processes, with concentrations ranging from 50-200 mg/m³.

• Particulate Matter: Metal dust from drilling and edge milling processes, featuring a wide particle size distribution (0.1-10μm), where traditional filtration technologies proved inefficient.

Our Advantages:

• A dedicated project team collaborated with engineering partners to address acidic waste gas using a two-stage vertical PP scrubber (diameter 2.2m) equipped with an automatic pH dosing system. By neutralizing sulfuric acid mist with NaOH solution, a removal rate of ≥98% was achieved (Note 26).

Solution:

Customer Feedback:
The Huai’an Municipal Ecological Environment Bureau remarked during a 2024 inspection:
"Zhongxinhua’s waste gas treatment system seamlessly integrates with production line equipment, offering a replicable technical model for the electronic circuit industry."

Case 3: AVIC Xi'an Aircraft Industry Group Co., Ltd.

Customer Requirements:
AVIC Xi'an Aircraft Industry Group raised the following concerns:

1. Insufficient Vibration Resistance: Heavy-duty equipment on the aircraft assembly line (e.g., riveting machines, landing gear test benches) generated intense vibrations during operation. Traditional fans were prone to resonance effects, leading to blade deformation and reduced lifespan.

2. Poor Adaptability to Extreme Environments: Large temperature variations in the workshop (-20°C to 50°C) and low air pressure at high-altitude locations caused a sharp decline in the efficiency of existing fans, resulting in unstable air supply.

Our Advantages:
Upon receiving the requirements, our company quickly formed a specialized team (R&D, Technical, Project, and After-Sales Departments) and proposed the following solutions:

1. Active Vibration Damping Technology: Reduced vibration amplitude by 80%, ensuring compatibility with high-impact environments.

2. All-Climate Design: Incorporated wide temperature range (-40°C to 60°C) and high-pressure differential adaptive technology, improving plateau performance by 30%.

Solution:

Customer Feedback:
"The fans operated stably in extreme high-altitude environments, and the vibration control technology significantly extended equipment lifespan, providing reliable support for national defense equipment production."
—AVIC Xi'an Aircraft Industry Group Co., Ltd.

Key Features of the Translation:

1. Technical Accuracy: Terms like "抗振性" (vibration resistance), "变频调速" (variable frequency speed control), and "高压差自适应技术" (high-pressure differential adaptive technology) are translated with industry-specific precision.

2. Clarity in Extreme Conditions: Highlights temperature ranges (-40°C to 60°C) and performance improvements (30% plateau efficiency) to emphasize adaptability.

3. Structured Presentation: Maintains the original tabular format for product specifications, ensuring readability.

4. Customer Testimonial: Preserves the client’s voice while ensuring grammatical fluency in English.

This translation ensures the technical and operational strengths of the solution are clearly communicated to international stakeholders.

Case 9: Comprehensive Waste Gas Treatment Project for Hebei Fengmei Coking Plant

Customer Requirements:
Hebei Fengmei Coking Co., Ltd. faced challenges in managing high-concentration sulfur- and nitrogen-containing malodorous gases generated during coking, gas purification, and wastewater treatment processes. The original system suffered from low treatment efficiency, severe equipment corrosion, and excessive energy consumption, necessitating an upgrade to a high-efficiency, energy-saving deodorization system.

Our Advantages:

• Customized corrosion-resistant centrifugal fans capable of withstanding strongly corrosive environments (pH 0-14, temperatures below 200°C).

• Fans equipped with LEL (Lower Explosive Limit) real-time monitoring and nitrogen dilution systems. Upon detecting excessive combustible gas concentrations, nitrogen is automatically injected with an explosion-proof response time ≤3 seconds.

Solution:

Customer Feedback:
"After commissioning the XDG system, the odor concentration at the plant boundary dropped from 10,000 AU/m³ to 80 AU/m³, and RTO waste heat recovery achieved an annual carbon reduction of 150 metric tons! The explosion-proof design and intelligent O&M reduced safety incidents to zero, setting a benchmark for green transformation in the coking industry!"

Case 10

: Shandong Shida Shenghua Chemical Group Co., Ltd.

Customer Requirements:
Shandong Shida Shenghua Chemical Group Co., Ltd., a national high-tech enterprise controlled by China University of Petroleum (East China), specializes in the R&D and production of new energy materials (e.g., lithium-ion battery electrolyte solvents) and high-end fine chemicals. The company required comprehensive collection and treatment of gases (e.g., hydrofluoric acid, sulfuric acid, hydrogen chloride) generated in its fluoromaterial production workshops.

Our Advantages:
Collaborating with the general contractor, we proposed the following tailored waste gas treatment system design:

1. Customized Selection as Core: Selected explosion-proof materials and sealing structures based on gas characteristics (flammable, corrosive) to eliminate safety risks.

2. Intelligent Control for Efficiency: Enabled precise air volume matching and energy optimization through dynamic frequency conversion and IoT monitoring.

3. Integrated Process Design: Ensured seamless coordination between the fan system and auxiliary equipment (e.g., scrubbers, RTOs), enhancing overall treatment efficiency.

Solution:
Adopting a "graded treatment + intelligent control" technical approach tailored to Shida Shenghua’s waste gas characteristics, the fan system was configured as follows:

• Utilized domestically renowned explosion-proof motors.

• Specialized treatments: Resistance to hydrofluoric acid, organic solvents, and high temperatures.

Customer Feedback:

• Safety Benefits: Operational stability since January 2021.

• Economic Benefits: Integrated energy consumption reduced, lowering operating costs by ~25%.

• Environmental Benefits:

  • VOCs removal rate ≥98%.

  • Particulate emissions ≤10 mg/m³.

  • H₂S emission concentration <10 mg/m³, exceeding national standards.

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