Shandong Zhongjie Special Equipment's main products include: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat boilers, and other boiler products; vacuum insulation deep-freeze pressure vessels such as LNG tanks, oxygen-nitrogen-argon tanks, and CO2 tanks; pressure vessel products such as denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment sets; central air conditioning and HVAC 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.
For the maintenance of industrial gas-fired boilers, here are some common methods and precautions: * Clean the burner: Regularly clean the interior and nozzle of the burner to ensure normal combustion of the gas, and avoid carbon buildup and blockages. * Inspect the gas supply system: Regularly check the gas supply system, including gas pipes, valves, and pressure regulators, to ensure normal supply, no leaks, or blockages. * Clean the flue and heat exchanger: Regularly clean the flue and heat exchanger to remove dust and dirt, maintain heat exchange efficiency, and avoid overheating and energy loss. * Check water level and pressure: Regularly inspect the boiler's water level and pressure to ensure safe operation within the specified range. Refill water and adjust pressure to avoid issues caused by low or high water levels. * Inspect safety devices: Regularly check the boiler's safety devices, including safety valves, pressure switches, and water level controllers, to ensure proper functioning and safe operation. * Check the control system: Regularly inspect the boiler's control system, including automatic controllers, sensors, and instruments, to ensure accuracy and reliability, and to promptly detect and repair faults. * Regular maintenance: Conduct regular maintenance, including lubricating parts, replacing worn components, and checking electrical connections, to extend the boiler's lifespan and stability. * Keep records: Record the boiler's operating parameters, maintenance records, and fault situations to help identify problems and analyze operational conditions. * Train operators: Ensure that operators have sufficient

The inspection of the heat-conducting oil boiler tube plates is crucial for ensuring the safe operation of the boiler and preventing potential issues. Below are the general steps for inspecting heat-conducting oil boiler tube plates: - Visual Inspection: Conduct a visual inspection to check for any obvious corrosion, cracks, deformation, or other anomalies on the tube plate surface. Pay special attention to cracks or leaks at the welds and joints. - Clean the Tube Plate: Clean the surface of the tube plate thoroughly to remove dirt and deposits for a proper inspection. - Ultrasonic Testing: Use an ultrasonic testing device to inspect the tube plate to detect any potential cracks or other defects. Ultrasonic testing helps determine the integrity and reliability of the tube plate. - Pressure Test: Perform a pressure test to verify the sealing and pressure-bearing capabilities of the tube plate. Gradually increase pressure during the test, observe for any leakage, and ensure the tube plate can withstand the designed pressure. - Tube Plate Thickness Measurement: Use an ultrasonic thickness gauge to measure the thickness of the tube plate to ensure it meets design requirements. Pay particular attention to the corrosion status, ensuring it remains within safe limits. - Weld Inspection: Inspect the welds on the tube plate to ensure the quality meets relevant standards and specifications. Check for the integrity of the welds, the quality of the welding, and whether the welding process meets requirements. - Record and Report: Record and report the inspection results of the tube plates, including any issues found, corrective measures, and recommendations. These records and reports serve as references for future maintenance and management. Note that the inspection of heat-conducting oil boiler tube plates should be carried out by qualified personnel and performed strictly in accordance with relevant standards and regulations. If any issues or anomalies are detected, appropriate repair and maintenance measures should be taken promptly to ensure the safe operation of the boiler.

Fuel-gas boiler combustion safety and explosion-proofing are crucial. The following are some relevant safety measures: 1. Burner Selection and Adjustment: Choose burners that meet standard and specification requirements and ensure they are installed correctly. The burner parameters and adjustments should align with design requirements to ensure a stable and safe combustion process. 2. Fuel Supply System: The fuel supply system of fuel-gas boilers must have safe and reliable characteristics. Equipment such as fuel storage tanks, transport pipelines, and filters should be regularly inspected and maintained to prevent leaks and blockages. 3. Combustion Control System: The combustion control system of fuel-gas boilers should have the ability to control. The control system should be capable of monitoring and adjusting combustion parameters such as fuel supply volume and combustion air volume to ensure a stable and safe combustion process. 4. Safety Valves and Pressure Switches: Safety valves and pressure switches should be installed on fuel-gas boilers to protect their safe operation. Safety valves can automatically open when exceeding the set pressure, releasing over-pressurized gas or steam to prevent boiler explosion. 5. Gas Leak Detection: For gas boilers, gas leak detection devices should be installed. These devices can detect gas leaks in a timely manner and trigger alarms to prevent gas accumulation and explosion. 6. Regular Inspection and Maintenance: Regularly inspect and maintain fuel-gas boilers, including cleaning burners, checking the combustion system, and adjusting combustion parameters. Promptly repair and replace damaged parts to ensure normal operation and safety performance of the equipment. 7. Training and Operating Procedures: Train operators to...

During the production welding of thermal oil boilers, the following points should be noted: - Welder Qualifications: Ensure that the welders involved have appropriate qualifications and experience, familiar with welding techniques and procedures. - Welding Material Selection: Choose welding materials suitable for thermal oil boilers, ensuring compatibility with thermal oil and high-temperature resistance. - Welding Process Control: Select the appropriate welding process based on the material and design requirements of the thermal oil boiler, such as manual arc welding, gas shielded welding, etc. Control welding parameters such as 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 that the welding quality meets requirements. - Safety Measures: Pay attention to safety measures during welding, such as wearing protective goggles, gloves, fire-resistant clothing, etc., to ensure the safety of the welding operation. - It is important to follow relevant standards and specifications during the welding process to ensure the quality and safety of welding. If unsure about the welding process or if there are potential safety hazards, seek advice from a welding engineer or consult relevant agencies.
Our company highly values technological innovation and R&D, boasting one municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc., and are equipped with over 600 instruments and equipment, including CNC machine tools, X-ray flaw detectors, digital ultrasonic flaw detectors, mechanical property testing machines, chemical analyzers, spectrometers, tensile testing machines, plasma welding machines, and more. Our key products and technologies, such as thermal-pressure vessel welding, biomass boiler emission reduction, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, Shandong Provincial key 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 Yajiang Li from Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire argon arc welding (PAW-GTAW) technique, which has been appraised at the provincial level for its scientific and technological achievements, reaching an international level in the field of deep cryogenic container manufacturing.
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