Shandong Zhongjie Special Equipment specializes in: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulated cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, complete chemical equipment; central air conditioning and HVAC 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.
After the hot water boiler is shut down, here are some common maintenance measures: * Clean the boiler: After shutdown, the boiler should be cleaned first. Dust, dirt, and sediments inside the boiler can be washed with appropriate cleaning tools and agents. Pay special attention to cleaning the combustion chamber, flue, and heat exchanger, etc. * Drain the water: Empty the water inside the boiler to prevent the accumulation of scale and corrosive substances. Open the drain valve to drain the water until the interior is completely empty. * Anti-corrosion treatment: Before shutdown, anti-corrosion treatment can be performed to prevent corrosion of the metal materials inside the boiler. Suitable anti-corrosion agents or coatings can be applied to the key parts of the boiler. * Inspection and maintenance: During shutdown, regularly inspect the various components and connections of the boiler to ensure there are no loose, damaged, or leaking issues. If problems are found, repair or replacement should be done promptly. * Keep dry: After shutdown, maintain the dryness inside the boiler. Open the ventilation and exhaust openings of the boiler to ensure air circulation and prevent dampness and mold growth. * Regular inspections: Regularly check the condition of the boiler to ensure there are no abnormalities. A corresponding inspection plan can be formulated based on the usage and requirements of the boiler, such as a comprehensive check every quarter or year. * Preparations before startup: Before restarting the boiler, appropriate preparations should be made. This includes cleaning the boiler, checking the connections of equipment and pipelines, and inspecting the fuel supply, etc.

Potential operational issues with the fuel system of a thermal oil furnace include: - Poor fuel quality: Using low-quality or contaminated fuel can cause problems with the fuel system. For instance, the presence of impurities, moisture, or excessive sediment can lead to clogging of fuel pumps, injectors, and burners, affecting fuel supply and combustion efficiency. - Inadequate maintenance of the fuel filter: The fuel filter's purpose is to filter impurities and particulates from the fuel to prevent them from entering the fuel system. If the fuel filter is not regularly cleaned or replaced, it can become clogged, impacting fuel flow and supply. - Improper adjustment of the fuel pump: Proper adjustment of the fuel pump is crucial for maintaining stable fuel supply volume and pressure. Incorrect adjustment can result in either over-supply or under-supply of fuel, leading to incomplete combustion or insufficient fuel supply, affecting the furnace's temperature and thermal efficiency. - Clogging or wear of the fuel injector: The fuel injector is a critical component that atomizes and injects fuel into the furnace. If the injector is clogged or worn, it can cause uneven fuel injection or incorrect spray angles, impacting combustion efficiency and thermal output. - Inadequate fuel preheating: Fuel must be preheated before entering the burner to enhance combustion efficiency. Insufficient preheating can increase fuel viscosity, affecting fluidity 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 instability in fuel supply.

The purpose of deoxygenation in industrial boiler feed water is to reduce oxygen corrosion and bubble formation within the boiler, ensuring the safety and proper operation of the boiler and pipeline system. The main methods of deoxygenation include: 1. Mechanical Deoxygenation: Removing oxygen from water through physical means. Common mechanical deoxygenation equipment includes deaerators and degassers. Deaerators remove oxygen by atomizing water into a film, utilizing the difference in solubility between gases and water. Degassers remove oxygen by atomizing water into tiny droplets, also using the difference in solubility. 2. Thermal Deoxygenation: Removing oxygen from water by heating the water body, taking advantage of the property that oxygen solubility decreases with increasing temperature. Common thermal deoxygenation equipment includes deaerating pots and deaerators. Deaerating pots release oxygen from water by heating it to saturation temperature. Deaerators remove oxygen by heating water, utilizing the decreased solubility of oxygen. 3. Chemical Deoxygenation: Removing oxygen from water by adding chemicals that react with it, thus removing oxygen. Common chemical deoxygenating agents include salts, reducers, etc. Chemical deoxygenation is often used in high-pressure boiler systems and can effectively remove oxygen from water. The choice of deoxygenation method depends on the specific boiler system and water quality. In practical applications, a combination of deoxygenation methods is often used to achieve the desired deoxygenation effect. The selection and operation of deoxygenation equipment should be assessed and adjusted based on actual conditions to ensure the safety and proper operation of the boiler system.

To optimize and improve the planning of gas boiler systems, consider the following aspects: 1. Energy Audit and Evaluation: Conduct a comprehensive energy audit and assessment to understand the energy consumption of the gas boiler system and identify potential energy-saving opportunities. Through data analysis and energy measurement, determine the main sources of energy consumption and bottlenecks to provide a basis for subsequent optimization. 2. Combustion System Optimization: Optimize the combustion system of the gas boiler, including adjustments and cleaning of burners, control of the gas-to-air ratio, and maintenance of the combustion chamber. Ensure high combustion efficiency and high gas utilization, reducing energy waste. 3. Heat Recovery Utilization: Consider installing heat recovery devices such as waste heat recovery units or flue gas heat exchangers. These devices can utilize the excess heat from the flue gas emitted by the gas boiler to heat water or other equipment requiring heat, improving energy utilization efficiency. 4. Pipe Insulation and Leak Inspection: Ensure that the insulation performance of gas and hot water pipes is good to reduce energy loss. Regularly inspect for pipe leaks and make timely repairs to avoid energy waste and safety hazards. 5. Control System Upgrade: Consider upgrading the control system of the gas boiler to adopt automated control technology. Through precise control and adjustment, achieve optimal operation of the gas boiler.
Our company attaches great importance to technological innovation and R&D design. We possess 1 municipal enterprise technology center in Heze City, with facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. We are equipped with 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. Our key products and technologies, such as thermal-pressure vessel welding, biomass boiler emissions reduction, and waste heat recovery, have successively been included in multiple Shandong Provincial Department of Industry and Information Technology science and technology projects, key provincial projects, and Heze City innovative and excellent projects. We have accumulated a total of 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 Li Yajiang of Shandong University, has jointly developed deep cryogenic vessel processing technology, which utilizes the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. The provincial scientific and technological achievement appraisal has confirmed that the technology level in deep cryogenic vessel manufacturing has reached an international standard.
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