Shandong Zhongjie Special Equipment Co., Ltd. specializes in the following products: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products including denitrification 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 modular units. 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 Qualifications: Ensure that the welders involved in the welding work have appropriate qualifications and experience, and are familiar with welding techniques and 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 an 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 needs to be protected to prevent contamination from thermal oil and welding materials. Use welding screens, welding hoods, and other equipment to ensure the cleanliness and safety of the welding area. - Post-Welding Treatment: After welding, post-treatment of the weld should be performed, 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 examination of the weld, dimension measurements, and non-destructive testing, to ensure that the welding quality meets the requirements. - Safety Measures: Pay attention to safety measures during the welding process, such as wearing protective goggles, gloves, and fire-resistant clothing, to ensure the safety of the welding operation. - It is crucial 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 potential safety hazards, seek the assistance of a welding engineer or consult relevant agencies.

If the thermal oil furnace circulating pump encounters issues, follow these steps for troubleshooting: 1. Shutdown and inspection: First, stop the thermal oil furnace and disconnect the power. Check for any obvious signs of failure in the pump, such as unusual noises, oil leaks, or leaks. Inspect the motor for proper operation and any abnormal heat generation. 2. Clean the pump body: If sediment or impurities are found in the pump body, clean them. Use appropriate tools and cleaning agents to remove dirt and obstructions from inside the pump. Ensure safe operation to avoid damaging the pump body. 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 any loose or damaged parts promptly. 4. Check the pump motor: Verify the motor's proper operation and for any abnormal sounds 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 system: Ensure the pump's lubrication and cooling systems are functioning correctly. 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, you may need to adjust the pump's parameters, such as flow rate and head. Adjust the pump speed or valve opening according to the equipment's requirements and operating conditions to meet the thermal oil furnace's energy needs. 7. Seek repair if necessary: If the above steps do not resolve the issue or if more extensive repair and maintenance are required, it is recommended to seek repair services. Contact a repair technician or manufacturer's technical support for further troubleshooting and repair. It is crucial to prioritize safety when dealing with thermal oil furnace circulating pump issues and adhere to relevant operational procedures and safety requirements. If unsure of how to proceed or if there are safety concerns, seek assistance promptly.

WNS Low-Nitrogen Condensing Hot Water Boilers offer the following advantages: Low Nitrogen Emissions: The WNS Low-Nitrogen Condensing Hot Water Boilers utilize low-nitrogen combustion technology, optimizing the combustion process and burner design to significantly reduce nitrogen oxide (NOx) emissions. This helps to minimize environmental pollution. High Thermal Efficiency: With condensing technology, the WNS Low-Nitrogen Condensing Hot Water Boilers recover heat from flue gases, enhancing thermal energy utilization efficiency. The thermal efficiency of condensing hot water boilers typically exceeds 90%, higher than traditional hot water boilers. This aids in energy conservation and cost reduction. Safety and Reliability: The WNS Low-Nitrogen Condensing Hot Water Boilers are equipped with a control system and safety devices that offer excellent safety performance. They come with multiple safety features like overheat protection, overpressure protection, and water level protection, which automatically monitor and control the boiler's operation to ensure safe operation. Versatility: The WNS Low-Nitrogen Condensing Hot Water Boilers are suitable for various applications, such as industrial, commercial, and residential. They can accommodate different heat load requirements, demonstrating strong flexibility. Moreover, they can be integrated with other systems, such as solar hot water systems and ground source heat pump systems, to further improve energy efficiency. Easy Operation and Maintenance: The operation and maintenance of the WNS Low-Nitrogen Condensing Hot Water Boilers are straightforward.

Operational issues with the fuel system of a thermal oil furnace may include: - Inadequate fuel quality: Using low-quality or contaminated fuel can lead to problems in the fuel system. For instance, the presence of impurities, moisture, or excessive residue can cause fuel pumps, injectors, and burners to clog, affecting fuel supply and combustion efficiency. - Neglecting regular 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, impeding fuel flow and supply. - Improper adjustment of the fuel pump: Proper adjustment of the fuel pump is crucial for maintaining stable fuel supply and pressure. Incorrect adjustment can lead to excessive or insufficient fuel supply, resulting in incomplete combustion or inadequate fuel supply, affecting the furnace's temperature and thermal efficiency. - Clogged or worn fuel injectors: Fuel injectors are key components that atomize and inject fuel into the furnace. Clogging or wear can cause uneven fuel喷射 or incorrect喷射 angles, affecting combustion efficiency and heat output. - Insufficient fuel preheating: Fuel needs to be preheated before entering the burner to enhance combustion. Insufficient preheating can increase fuel viscosity, affecting its flow and injection performance. - Fuel system oil leaks: The seal integrity of the fuel system is essential for stable fuel supply. Oil leaks in the fuel system can lead to fuel supply instability.
Our company places great importance on technological innovation and research and development, with one city-level technical center in Heze City. We have established test facilities for non-destructive testing,理化 analysis, welding tests, hydrostatic tests, etc. Equipped with over 600 instruments and equipment such as CNC machines, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property test machines, chemical analyzers, spectrometers, tensile testing machines, and plasma welding machines, we have developed key products and technologies such as welding for temperature and pressure vessels, emission reduction for biomass boilers, and waste heat utilization. These have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology Science and Technology Innovation Projects, key provincial projects, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Li Yajiang of Shandong University, has jointly developed deep cryogenic vessel processing technology using the international plasma arc + wire-filled argon arc welding (PAW-GTAW) technology, which has reached an international level in the deep cryogenic vessel manufacturing field, as certified by the provincial scientific and technological achievement assessment.
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