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 cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, CO2 tanks; pressure vessel products such as denitrification engineering equipment, heat storage and energy storage equipment, complete chemical equipment sets; central air conditioning and ventilation 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.
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 tank, transport 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 safety 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 matchstick, igniter, etc. Ensure these tools function normally 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 with experts or the boiler manufacturer for advice.

Common problems and solutions for gas boiler burners are as follows: 1. No flame or unstable flame: Check if the gas supply is normal and ensure the gas valve is open. Clean the burner nozzle to ensure the passage is clear. Check if the ignition electrode is clean and free of carbon deposits or dirt. Adjust the ratio of gas to air for proper mixture. 2. Incomplete combustion or black smoke: Check if the gas supply is sufficient and adjust the gas pressure. Clean the burner nozzle and combustion chamber to ensure the passage is clear. Adjust the ratio of gas to air for proper mixture. Check for carbon deposits or dirt in the burner and clean or replace damaged parts. 3. Difficulty or failure to ignite: Check if the ignition electrode is clean and free of carbon deposits or dirt. Adjust the position and gap of the ignition electrode to ensure normal spark generation. Check if the ignition transformer or controller is functioning properly, and repair or replace damaged parts. 4. Abnormal noise from the burner: Check if the gas supply is normal and ensure the gas valve is open. Check for loose parts in the burner and combustion chamber and tighten or replace damaged parts. Clean the burner and combustion chamber to ensure there are no carbon deposits or dirt. If the above methods do not resolve the issue, it is recommended to contact a gas boiler maintenance professional for inspection and maintenance. Additionally, to ensure safety, follow the relevant safety operating procedures when using a gas boiler.

Industrial boilers, during long-term operation, can accumulate scale and deposits, affecting heat exchange efficiency and the normal operation of the boiler. Here are some effective descaling methods: 1. Mechanical Cleaning: This involves using cleaning equipment and tools to wash away scale and deposits inside the boiler with high-pressure water or mechanical brushes. This method is suitable for lighter scale and deposits. 2. Chemical Cleaning: Utilizing chemical cleaning agents to dissolve scale and deposits through chemical reactions. Select the appropriate cleaning agent based on the composition and nature of the scale, and follow the instructions for use. Chemical cleaning requires safe operation to avoid damage to equipment and the environment. 3. Acid Cleaning: A common descaling method for difficult-to-dissolve scale and deposits. Common acid cleaning agents include various types, and the appropriate agent and concentration should be selected based on the specific situation. Acid cleaning requires safe operation to prevent harm to equipment and personnel. 4. Alkaline Cleaning: A descaling method for specific types of scale, suitable for alkaline scale. Common alkaline cleaning agents include various types, and the appropriate agent and concentration should be selected based on the specific situation. Alkaline cleaning requires safe operation to prevent harm to equipment and personnel. 5. Physical Descaling: Physical descaling methods include ultrasonic cleaning and electro-dissolution. Ultrasonic cleaning uses the vibration effect of ultrasound to vibrate and break up scale. Electro-dissolution uses the principle of electrolysis to dissolve scale through the action of electricity. These physical descaling methods are suitable for special situations and specific types of scale. When selecting a descaling method, it is necessary to consider the specific conditions of the boiler.

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 gas, avoiding 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 debris, maintaining heat exchange efficiency, and preventing overheating and energy loss. Check water level and pressure: Regularly inspect the boiler's water level and pressure to ensure safe operation within the 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 operation and safe boiler 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 detect and repair faults in a timely manner. Regular maintenance: Regularly perform maintenance, including lubricating components, replacing worn parts, and checking electrical connections, to extend the boiler's lifespan and stability. Keep records: Document the boiler's operating parameters, maintenance records, and fault conditions to help promptly identify issues and analyze operating status. Train operators: Ensure operators have adequate
Our company highly values technological innovation and research and development. We have 1 city-level enterprise technology center in Heze City, with testing facilities for non-destructive testing, physical and chemical tests, welding tests, hydrostatic tests, etc. We 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. The key products we have developed, such as welding of temperature and pressure vessels, emission reduction of biomass boilers, and waste heat recovery, have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, Shandong Provincial key projects, and Heze City innovative and excellent projects. We have累计 obtained 27 authorized utility model patents, 16 authorized invention patents, participated in drafting 2 standards, 2 industrial standards, and registered 15 trademarks. The technical team, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + wire-filled tungsten inert gas arc welding (PAW-GTAW) technique, which has been appraised as reaching international standards in deep cryogenic container manufacturing by the provincial-level science and technology achievement assessment.
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