Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, A2-grade pressure vessel manufacturing license, A2-grade pressure vessel design license, B-grade boiler installation, and GB2/Class, GC2/Class pressure pipeline installation licenses, as well as a machinery and electrical equipment installation contracting qualification. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and a council member of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
The flow rate standard for the heat transfer oil in the oil tubes of a thermal oil furnace typically varies based on specific applications and equipment requirements, without a unified fixed value. Generally, the flow rate of the heat transfer oil within the oil tubes should be maintained within a reasonable range to ensure the normal operation of the equipment and the effectiveness of heat transfer. Excessive flow rates of heat transfer oil can lead to issues such as increased pressure loss in the system, higher power consumption by the pump, increased friction losses in the pipes leading to energy loss, and increased noise and vibration in the system. Low flow rates of heat transfer oil can cause problems such as inadequate heat transfer, affecting the thermal efficiency of the equipment, prolonged residence time of the oil in the pipes, which can lead to oxidation and thermal decomposition, reducing the lifespan of the heat transfer oil, and the formation of scale in the pipes, increasing resistance and affecting fluid flow. Therefore, when designing and operating a thermal oil furnace system, it is necessary to consider specific equipment parameters, the properties of the heat transfer oil, and pipe layout, among other factors, to determine the appropriate flow rate. Typically, the flow rate of heat transfer oil should be within the range of 0.5-2.0 m/s, but the specific figures should be adjusted and optimized based on actual conditions. In practice, the flow rate of heat transfer oil can be controlled by monitoring and adjusting the pump flow rate and pipe resistance to meet the thermal energy needs and operational requirements of the equipment.

Energy-saving of steam boilers is crucial for the following reasons: Energy Costs: Steam boilers typically use fuels (such as coal, gas, oil, etc.) to produce steam, with energy costs forming a significant part of the boiler's operating expenses. Energy-saving can reduce energy consumption and lower energy costs. Environmental Protection: The combustion process of steam boilers generates waste gases and dust, causing environmental pollution. Energy-saving can decrease fuel consumption and reduce emissions, having a positive impact on environmental protection. Sustainable Development: Energy-saving is one of the important aspects of sustainable development. By reducing energy consumption and extending the boiler's lifespan, resources can be conserved and waste minimized, achieving sustainable development. Measures for energy-saving include: Improving Boiler Thermal Efficiency: By enhancing the boiler's combustion system, optimizing combustion parameters, and increasing heat exchange efficiency, the boiler's thermal efficiency can be raised, reducing energy waste. Heat Recovery and Utilization: Using waste heat recovery devices, the excess heat in the flue gas emitted by the boiler can be recovered and utilized for heating water or other processes requiring heat energy, improving energy utilization efficiency. Application of Energy-saving Equipment: Using energy-saving equipment such as variable frequency drives, energy-saving burners, heat pumps, etc., can reduce energy consumption and improve the efficiency of the boiler.

The inspection content and requirements for gas-fired boilers typically include the following aspects: Safety valve and pressure gauge: Check the installation and fastening of the safety valve and pressure gauge to ensure proper operation and accurate pressure display. Combustion system: Inspect the operational status of the burner, including ignition, combustion, and combustion stability. Check the connection of the gas supply pipeline and valves to ensure no leaks. Chimney and heat exchanger: Inspect the cleanliness of the chimney and heat exchanger, including accumulated dust and dirt, to ensure heat exchange efficiency and smoke emissions meet requirements. Water level control system: Check the operational status of the water level controller and gauge to ensure accurate and reliable water level control, preventing excessive or low water levels. Gas supply system: Inspect the installation and connection of the gas supply pipeline and valves to ensure normal gas supply and no leaks. Electrical system: Check the wiring and connection of the electrical system, including power supply, controllers, and sensors, to ensure normal operation of electrical equipment and avoid electrical faults. Safety devices: Inspect the operational status of safety devices, including safety valves, pressure switches, and temperature controllers, to ensure proper operation and ensure safe boiler operation. Records and documents: Review the boiler's operating records, maintenance records, and inspection reports, ensuring the completeness and accuracy of the operating and maintenance records. Inspections of gas-fired boilers should be conducted by qualified institutions or personnel, adhering to relevant laws, regulations, and standards. The frequency and specific requirements for inspections can be determined based on the boiler's usage and local regulations. Timely inspections and maintenance ensure safe and efficient operation of gas-fired boilers.

Converting a standard boiler to a gas boiler can significantly enhance energy utilization efficiency and energy-saving effects. Here's some insight into the energy-saving efficiency of switching to a gas boiler: High combustion efficiency: Gas boilers, fueled by gas, generally have higher combustion efficiency. Compared to traditional coal or oil-fired boilers, gas boilers can achieve a higher level of combustion efficiency, reducing energy waste. Low emissions: Gas boilers produce relatively fewer exhaust emissions during combustion, causing less environmental pollution. The combustion technology and emission control devices used in gas boilers typically effectively reduce the emissions of harmful substances like nitrogen oxides. Fast start and stop: Gas boilers can start and stop quickly, allowing for flexible adjustments based on actual needs. Compared to coal-fired boilers, gas boilers have shorter start-up and shutdown times, avoiding prolonged preheating and cooling processes, and reducing energy waste. High thermal efficiency: Gas boilers usually have higher thermal efficiency, achieving a higher heat conversion efficiency. The heat exchange technology and energy-saving design of gas boilers maximize the utilization of the heat energy from gas, enhancing heating performance. Smart control and management: Gas boilers are often equipped with smart control systems that can automatically adjust operating states based on actual needs. Through precise control and regulation, gas boilers can ensure stable heating and avoid unnecessary energy waste. It's important to note that when converting to a gas boiler, factors such as the reliability and safety of the gas supply, as well as the suitability and installation requirements of the gas boiler, should be considered. It is recommended to consult with engineers or relevant agencies before proceeding with the conversion.
Our company attaches great importance to technological innovation and R&D design. We have one municipal-level enterprise technology center in Heze City, equipped with testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. We have over 600 types of 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. The key products and technologies we have developed, such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat recovery, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology 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. The technical team of our company, in collaboration with Professor Yajiang Li from Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire filling argon arc welding (PAW-GTAW) technology. The provincial-level scientific and technological achievement appraisal has determined that the technology level in the field of deep cryogenic container manufacturing has reached an international standard.
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