Shandong Zhongjie Special Equipment Co., Ltd. (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Development Zone, Heze City. With a registered capital of 50 million yuan and total assets of 500 million yuan, the company has 7 business centers: boilers, deep-freezing vessels, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three manufacturing sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters. The main workshop spans 83,000 square meters. It currently employs 710 staff, including 247 engineers and technicians, and 82 intermediate-level technical personnel. In December 2016, it was recognized as a "High-Tech Enterprise" by the Science and Technology Department. In June 2021, it was identified as a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was recognized as a "Gazelle Enterprise in Shandong Province," and in August 2022, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
The importance of energy-saving in steam boilers is significant, mainly due to the following reasons: Energy Costs: Steam boilers typically use fuels (such as coal, gas, oil, etc.) to generate steam, with energy costs accounting for a significant portion of the boiler's operating expenses. Energy-saving can reduce energy consumption and lower energy costs. Environmental Protection: The combustion process of steam boilers produces exhaust gases and dust, causing environmental pollution. Energy-saving can decrease fuel usage, lower emissions, and have a positive impact on environmental protection. Sustainable Development: Energy-saving is one of the key 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: Enhancing the boiler's combustion system, optimizing combustion parameters, and increasing heat exchange efficiency can raise the boiler's thermal efficiency and reduce energy waste. Heat Recovery Utilization: Using waste heat recovery systems, the excess heat in the flue gas emitted by the boiler can be recovered and used to heat water or other processes requiring heat, improving energy utilization efficiency. Application of Energy-Saving Equipment: The use of energy-saving equipment, such as variable frequency drives, energy-saving burners, and heat pumps, can reduce energy consumption and improve the overall efficiency of the boiler.

The main benefits of installing an expansion trough in a heat transfer oil furnace are as follows: - Alleviates thermal expansion and contraction: During operation, the heat transfer oil furnace experiences thermal expansion and contraction due to temperature changes. The expansion trough provides space for the expansion of heat transfer oil, mitigating the impact of thermal expansion and contraction on equipment and pipelines, and preventing stress concentration and equipment deformation caused by it. - Protects equipment and pipelines: The expansion trough absorbs the expansion and contraction of heat transfer oil, reducing the impact and vibration on equipment and pipelines. This helps extend the service life of equipment and pipelines, reducing the frequency of maintenance and replacement. - Reduces leakage risk: The expansion trough provides a sealed space, reducing the risk of heat transfer oil leakage. When the heat transfer oil expands, excess oil can be accommodated through the expansion trough, preventing leaks and environmental pollution. - Facilitates maintenance and repair: The presence of an expansion trough makes it easier to maintain and repair the heat transfer oil furnace system. When maintenance or replacement of equipment and pipelines is required, the flow and shutdown of heat transfer oil can be controlled through the expansion trough, reducing downtime and repair complexity. In summary, the expansion trough plays a role in alleviating thermal expansion and contraction, protecting equipment and pipelines, reducing leakage risk, and facilitating maintenance and repair in the heat transfer oil furnace system. It is an important design element that contributes to the safety and reliability of the heat transfer oil furnace system.

The flow rate standard for the thermal oil in the oil pipes of a thermal oil furnace is typically determined by the specific application and equipment requirements, with no unified fixed value. Generally, the flow rate of the thermal oil in the pipes should be maintained within a reasonable range to ensure the normal operation of the equipment and the effectiveness of heat transfer. Excessive flow rate of thermal oil may lead to the following issues: increased pressure loss in the system, higher energy consumption by the pump. Increased friction loss in the pipes, leading to energy loss. Increased noise and vibration in the system. Low flow rate of thermal oil may result in the following problems: insufficient heat transfer, affecting the thermal efficiency of the equipment. Extended residence time of thermal oil in the pipes, prone to oxidation and thermal decomposition, affecting the service life of the thermal oil. Accumulation of carbon 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, properties of the thermal oil, and pipeline layout, among other factors, to determine an appropriate flow rate. Generally, the flow rate of thermal oil should be within the range of 0.5-2.0 m/s, but the specific figures need to be adjusted and optimized based on actual conditions. In practice, the flow rate of thermal oil can be controlled by monitoring and adjusting the pump flow and pipeline resistance to meet the thermal energy and operational requirements of the equipment.

Prior to 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, sediments, and dirt to ensure combustion and heat exchange efficiency. 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 proper functioning. 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, with stable pressure meeting 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 are functioning properly to guarantee the safe operation of the boiler. 7. Prepare ignition tools: Prepare the tools and equipment needed for ignition, such as matchsticks, igniters, etc. Ensure these tools are in good working order and safe to use. While performing these preparation tasks, follow relevant operational procedures and safety requirements to ensure safety and effectiveness. If unsure about the preparation process, consult with an expert or seek advice from the boiler manufacturer.
Our company attaches great importance to technological innovation and research and development, 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 pieces of various 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. The key products and technologies we have developed, such as temperature-pressure vessels for welding, biomass boiler emission reduction, and waste heat utilization, have successively been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, key provincial projects, and Heze City innovative and excellent projects. We have accumulated a total of 27 authorized utility models, 16 authorized inventions, 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 jointly developed deep cryogenic vessel processing technology using the internationally recognized plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technique. After being appraised by the provincial-level scientific and technological achievement evaluation, the technology level has reached an international standard in the field of deep cryogenic vessel manufacturing.
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