Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, a B-grade boiler installation license, and GB2/Class, GC2/Class pressure pipeline installation licenses, as well as a mechanical and electrical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and the council member of the Shandong Equipment Manufacturing Association. The company has also passed certifications for ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System, and the American ASME/U2 certification.
The inspection of heat-conducting oil boiler tube plates is to ensure the safe operation of the boiler and prevent potential issues. Here 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 surface of the tube plates. Pay special attention to checking for cracks or leaks at the welds and joints. Cleaning the Tube Plates: Clean the surface of the tube plates thoroughly, removing dirt and deposits to facilitate inspection. Ultrasound Inspection: Use an ultrasound inspection device to examine the tube plates to detect any possible cracks or other defects. Ultrasound inspection helps determine the integrity and reliability of the tube plates. Pressure Test: Perform a pressure test to verify the sealing and pressure resistance of the tube plates. Gradually increase the pressure during the test, observe for any leakage, and ensure the tube plates can withstand the designed pressure. Tube Plate Thickness Measurement: Use an ultrasonic thickness gauge to measure the thickness of the tube plates to determine if the thickness meets design requirements. Pay particular attention to the corrosion of the tube plates, ensuring they are within a safe range. Weld Inspection: Inspect the welds of the tube plates to ensure the quality of the welds meets relevant standards and specifications. Check the integrity of the welds, the quality of the welding, and whether the welding process meets requirements. Documentation and Reporting: Document and report the inspection results of the tube plates, including any issues found, corrective measures, and recommendations. These records and reports can serve as references for subsequent maintenance and management. It is important to note that the inspection of heat-conducting oil boiler tube plates should be carried out by qualified personnel and strictly in accordance with relevant standards and specifications. If any issues or anomalies are found, appropriate repair and maintenance measures should be taken promptly to ensure the safe operation of the boiler.

Before ignition, the preparation of the steam boiler involves the following steps: 1. Clean the boiler: First, clean the internal and external dirt and impurities from the boiler. Remove ash, sediment, and dirt to ensure the efficiency of combustion and heat exchange. 2. Check fuel supply: Inspect the fuel supply system to ensure a smooth fuel supply. Check the fuel storage, transmission pipelines, and filters, clearing blockages and replacing damaged parts. 3. Inspect the burner: Check the operational status and cleanliness of the burner. Clean the burner's nozzle and flame detector to ensure normal operation. 4. Check the gas system: If it's a gas boiler, inspect the gas supply system. Check the gas pipelines, valves, and pressure regulators to ensure safe and stable gas supply. 5. Check water level and pressure: Inspect the boiler's water level and pressure. Ensure the water level is within the normal range, and pressure is stable and meets requirements. Add water and adjust pressure if necessary. 6. Check safety devices: Inspect the boiler's safety devices, such as safety valves, pressure switches, and water level controllers. Ensure these devices operate normally to guarantee the safe operation of the boiler. 7. Prepare ignition tools: Prepare the tools and equipment needed for ignition, such as a lighter rod, igniter, and matches. Ensure these tools work properly and are safe. 8. During the above preparation tasks, follow relevant operational procedures and safety requirements to ensure the safety and effectiveness of the work. If unsure about the preparation process, consult an expert or the boiler manufacturer for advice.

The primary benefits of installing expansion slots in a heat transfer oil furnace include: - Alleviating thermal expansion and contraction: During operation, the temperature changes in a heat transfer oil furnace can cause thermal expansion and contraction of the oil. The expansion slots provide space for the oil to expand, mitigating the impact of thermal expansion and contraction on equipment and pipelines, and avoiding stress concentration and equipment deformation caused by it. - Protecting equipment and pipelines: The expansion slots can absorb the expansion and contraction of the heat transfer oil, reducing the shock and vibration on equipment and pipelines. This helps extend the lifespan of equipment and pipelines, and decrease the frequency of maintenance and replacements. - Reducing leakage risks: The expansion slots provide a sealed space, minimizing the risk of heat transfer oil leakage. When the oil expands, excess oil can be accommodated through the expansion slots, preventing leaks and environmental pollution. - Facilitating maintenance and repair: The presence of expansion slots makes maintenance and repair of the heat transfer oil furnace system more convenient. When equipment or pipelines need to be repaired or replaced, the flow and shutdown of the heat transfer oil can be controlled through the expansion slots, reducing downtime and the difficulty of maintenance. -In summary, the expansion slots play a role in alleviating thermal expansion and contraction, protecting equipment and pipelines, reducing leakage risks, and facilitating maintenance and repair in the heat transfer oil furnace system. They are an important design element that contributes to the safety and reliability of the system.

Excessive exhaust gas temperature in a thermal oil boiler may be due to several reasons: Incomplete combustion: If the fuel is not fully combusted during the boiler's combustion process, it leads to a high concentration of unburned fuel and harmful substances in the flue gas, raising the exhaust gas temperature. Possible causes include insufficient fuel supply, improper burner adjustment, and burner wear. Excessive air: Excess air can lower the combustion temperature, making the heat in the flue gas insufficient to reduce the gas temperature to a reasonable level. Causes may include improper burner adjustment and excessively open air doors. Flue blockage: Accumulated ash, slag, or other impurities in the flue can obstruct flue gas flow, increasing the gas's residence time and raising the exhaust gas temperature. Abnormal thermal oil flow: Abnormal thermal oil flow, whether too high or too low, can lead to uneven heat transfer, increasing the flue gas temperature. Boiler overheating: Improper temperature control in the thermal oil boiler can cause overheating, raising the exhaust gas temperature. Design issues: Design problems, such as a small flue or poor flue gas flow, may also cause excessive exhaust gas temperature. To address the issue of high exhaust gas temperature, a comprehensive inspection and analysis of the thermal oil boiler is required. Solutions may include adjusting burner parameters, cleaning the flue, checking thermal oil flow and temperature control. In severe cases, boiler system modification or repair may be necessary. Additionally, regular maintenance and inspections are crucial preventive measures against high exhaust gas temperature.
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