Shandong Zhongjie Special Equipment Co., Ltd. specializes in: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulated cryogenic pressure vessels such as LNG storage tanks, oxygen-nitrogen-argon storage tanks, CO2 storage tanks, etc.; pressure vessel products including denitration engineering equipment, heat storage and energy storage equipment, and complete chemical equipment sets; central air conditioning and ventilation equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modules. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
During the production welding of thermal oil boilers, the following points should be noted: - Welder Qualification: Ensure that the welders involved in the welding work have appropriate qualifications and experience, and are familiar with welding processes and operational procedures. - Welding Material Selection: Choose welding materials suitable for thermal oil boilers, ensuring their compatibility with thermal oil and high-temperature resistance. - Welding Process Control: Select the appropriate welding process, such as manual arc welding or gas shielded welding, based on the material and design requirements of the thermal oil boiler. Control welding parameters like current, voltage, and welding speed to ensure the quality and strength of the weld. - Welding Area Protection: During the welding process, the welding area must be protected to prevent contamination from thermal oil and welding materials. Use welding barriers, welding shields, and other equipment to ensure the cleanliness and safety of the welding area. - Post-Welding Treatment: After welding, post-treatment of the weld is required, such as slag removal, grinding, and cleaning, to ensure the flatness and surface quality of the weld. - Welding Quality Inspection: Conduct welding quality inspections, including visual inspections of the weld, dimensional measurements, and non-destructive testing, to ensure the welding quality meets requirements. - Safety Measures: Pay attention to safety measures during the welding process, such as wearing protective eyewear, gloves, and fire-resistant clothing, to ensure the safety of welding operations. - It is important to follow relevant standards and specifications during the welding process to ensure welding quality and safety. If unsure about how to proceed with welding or if there are safety hazards, seek the advice of a welding engineer or consult relevant agencies.

In case the thermal oil circulating pump encounters issues, follow these steps for troubleshooting: 1. Shutdown and Inspect: First, halt the thermal oil heater's operation and disconnect the power supply. Check for any evident fault signs in the pump, such as unusual noises, oil leaks, or seepages. Verify that the motor operates normally and doesn't generate excessive heat. 2. Clean the Pump: If sediment or debris is found in the pump body, clean it. Use appropriate tools and cleaning agents to remove dirt and blockages from within the pump. Exercise safety precautions to avoid damaging the pump. 3. Inspect Pump Connections: Check the pump's connections, including inlet and outlet pipes, valves, and seals. Ensure they are securely fastened, valves operate smoothly, and seals are intact. Repair or replace if loose or damaged. 4. Examine the Pump Motor: Check if the pump motor is operating correctly, looking for any unusual noises or overheating. Inspect the power lines and control system of the motor to ensure normal power supply and correct control signals. 5. Inspect the Lubrication and Cooling Systems: Ensure the pump's lubrication and cooling systems are functioning properly. Check the supply of lubricating oil or grease and the circulation and temperature control of cooling water or coolant. 6. Adjust Pump Parameters: Depending on the situation, adjust pump parameters like flow rate and lift. Modify the pump speed or valve opening according to the equipment's requirements and operating conditions to meet the thermal oil heater's energy needs. 7. Seek Repair if Necessary: If the above steps don't resolve the issue or more extensive repairs are needed, consider seeking professional repair services. Contact a repair technician or manufacturer's technical support for further fault diagnosis and repair. 8. Prioritize Safety: When dealing with issues in the thermal oil heater circulating pump, always prioritize safe operation and follow relevant operational procedures and safety requirements. If unsure about the process or safety concerns exist, seek assistance promptly.

WNS Low-Nitrogen Condensing Hot Water Boilers offer the following advantages: - Low Nitrogen Emissions: Utilizing low-nitrogen combustion technology, these boilers significantly reduce NOx emissions by optimizing the combustion process and burner design. This helps to minimize environmental pollution. - High Thermal Efficiency: With condensing technology, these boilers enhance energy utilization by recovering heat from flue gases. The thermal efficiency of condensing hot water boilers typically exceeds 90%, surpassing traditional hot water boilers. This aids in energy conservation and cost reduction. - Safety and Reliability: Equipped with advanced control systems and safety devices, these boilers offer excellent safety performance. They come with multiple safety features such as overheat protection, overpressure protection, and water level protection, which automatically monitor and control the boiler's operation to ensure safe operation. - Flexibility: Suitable for various applications including industrial, commercial, and residential settings, these boilers can adapt to different thermal load demands, offering strong flexibility. They can also be integrated with other systems like solar hot water systems and ground-source heat pump systems to further improve energy efficiency. - Easy Operation and Maintenance: The operation and maintenance of WNS Low-Nitrogen Condensing Hot Water Boilers are straightforward and user-friendly.

Potential operational issues with the fuel system of a thermal oil furnace include: - Inadequate fuel quality: Using low-quality or contaminated fuel can cause problems with the fuel system. For instance, the presence of impurities, water, or excessive residue can lead to clogs in the fuel pump, nozzle, and burner, affecting fuel supply and combustion efficiency. - Unregular cleaning or replacement of the fuel filter: The fuel filter's purpose is to filter out impurities and particles from the fuel to prevent them from entering the fuel system. If the fuel filter is not cleaned or replaced regularly, it can become clogged, affecting fuel flow and supply. - Improper adjustment of the fuel pump: Proper adjustment of the fuel pump is crucial for maintaining stable fuel supply volume and pressure. Incorrect adjustment can result in either too much or too little fuel supply, leading to incomplete combustion or insufficient fuel supply, affecting the furnace's temperature and thermal efficiency. - Clogging or wear of the fuel nozzle: The fuel nozzle is a critical component that atomizes and injects fuel into the furnace. If the nozzle is clogged or worn, it can cause uneven fuel injection or incorrect spray angle, affecting combustion efficiency and thermal output. - Inadequate fuel preheating: Fuel must be preheated before entering the burner to enhance combustion. Insufficient preheating can increase fuel viscosity, affecting its flow and injection performance. - Fuel system oil leakage: The sealing integrity of the fuel system is essential for stable fuel supply. Any oil leakage in the fuel system can lead to fuel supply instability.
Our company attaches great importance to technological innovation and R&D, boasting 1 municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical tests, welding tests, hydrostatic tests, etc. Equipped with over 600 pieces of various equipment such as CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, and plasma welding machines. Our key products and technologies, including temperature-pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology innovation projects, key projects in Shandong Province, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. The technical team, in collaboration with Professor Yajiang Li from Shandong University, has developed deep cryogenic vessel processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technique. The provincial-level scientific and technological achievement identification confirms that our technology level in deep cryogenic vessel manufacturing has reached international standards.
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