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-nitrogenargon tanks, and CO2 tanks; pressure vessel products such as denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment; 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.
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 detergents. Pay special attention to cleaning the combustion chamber, flue, and heat exchanger, among other critical areas. Drain the water: Empty the water from the boiler to prevent the accumulation of scale and corrosive substances. Open the drain valve to expel the water until the interior of the boiler is completely drained. Corrosion prevention: Before shutdown, apply corrosion prevention treatments to the internal metal materials of the boiler to prevent corrosion. Use suitable corrosion inhibitors or coatings and apply them to the key areas inside the boiler. Inspection and maintenance: During shutdown, regularly check the various components and connections of the boiler to ensure there are no loose, damaged, or leaking issues. If problems are found, repair or replace them promptly. Keep dry: After shutdown, maintain the dryness inside the boiler. Open the ventilation and exhaust openings of the boiler to ensure air circulation, preventing dampness and mold growth. Regular inspections: Conduct regular checks on the boiler's condition to ensure there are no anomalies. Develop a corresponding inspection schedule based on the boiler's usage and requirements, such as a comprehensive check every quarter or year. Preparation before startup: Before restarting the boiler, perform the necessary preparatory work. This includes cleaning the boiler, checking the connections of equipment and pipes, and inspecting the fuel supply.

A gas thermal oil boiler is a device that uses gas as fuel to heat thermal oil through the heat energy generated by combustion. Here are some basic facts about gas thermal oil boilers: Working Principle: The working principle of a gas thermal oil boiler involves mixing gas with air, burning it to produce high-temperature flue gas. This flue gas is then passed through the flue and heat exchanger to exchange heat with the thermal oil, transferring heat energy to the oil and raising its temperature. The thermal oil circulates within the boiler, transferring heat energy to the equipment or process that requires heating. Thermal Oil: The thermal oil used in gas thermal oil boilers is typically an organic heat carrier, such as mineral oil or synthetic oil. It has high thermal conductivity and stability, allowing it to operate stably at high temperatures and transfer heat energy to the heated equipment. Gas Combustion System: Gas thermal oil boilers are equipped with a gas combustion system, including burners, gas supply systems, and control systems. The burners mix gas with air and burn it to produce heat. The gas supply system provides gas and adjusts the supply amount as needed. The control system monitors and controls the combustion process to maintain a stable operating state. Safety Protection Devices: Gas thermal oil boilers are equipped with various safety protection devices to ensure safe operation of the equipment. Common safety devices include overheat protection, overpressure protection, and water level protection. They monitor and control the boiler's operating status to prevent equipment damage and safety accidents. Application Fields: Gas thermal oil boilers are widely used in industrial sectors such as chemicals, textiles, food processing, and papermaking. They can provide stable high temperatures for various applications.

Hot water boilers and steam boilers are two common types of boilers, differing in working principles, application scenarios, and operating parameters: Working Principle: Hot water boilers provide heat energy by heating water, which is then distributed to the heating system. Steam boilers generate steam by heating water, which is then distributed to the heating system. Operating Temperature and Pressure: Hot water boilers typically operate at temperatures between 60°C and 100°C, with lower pressure. Steam boilers usually operate at temperatures between 100°C and 200°C, with higher pressure, generally between 0.7MPa and 2.5MPa. Heating Methods: Hot water boilers distribute hot water through a circulating pump to the heating system, primarily through conduction and convection. Steam boilers distribute steam through steam pipes to the heating system, primarily through steam conduction. Application Scenarios: Hot water boilers are suitable for heating, bathing, swimming pool heating, and other scenarios where hot water is needed in industrial production. Steam boilers are used in industrial production processes requiring steam, such as power plants, chemical factories, and textile mills. Equipment Structure: Hot water boilers are generally simpler and have a smaller structure and footprint. Steam boilers are typically more complex, with a larger structure and footprint. It is important to note that hot water and steam boilers may overlap in some special application scenarios, such as industrial processes that require both hot water and steam. Therefore, when selecting a boiler type, it is necessary to consider specific needs and application scenarios comprehensively.

If a gas boiler gas leak is detected, the following measures must be taken immediately to address the situation: 1. Immediately shut off the gas supply: First, quickly close the gas supply valve to cut off the gas supply. This prevents further leakage and reduces safety risks. 2. Ventilate the area: Open windows and doors to ensure proper indoor air circulation and expel any remaining gas. This lowers the indoor gas concentration, reducing the risk of explosion and poisoning. 3. Avoid open flames and electrical appliances: In the event of a gas leak, avoid using open flames and electrical equipment to prevent fires or sparks that could cause an explosion. 4. Do not operate electrical switches: Do not operate electrical switches, including lights, televisions, computers, etc., to avoid causing sparks that might lead to an accident. 5. Contact the gas company or personnel: Promptly contact the local gas company or personnel to report the gas leak and request them to inspect and handle the situation. 6. Do not use a phone or make calls: Do not use a phone or make calls in case of a suspected gas leak to avoid static electricity causing an explosion. 7. Keep away from the leak area: Stay as far away from the leak area as possible to ensure your safety. Avoid approaching the gas boiler and the leak point to prevent injury. Remember, handling a gas boiler gas leak is a dangerous task that requires caution. It is best handled by professionals to ensure safety.
Our company places great emphasis on technological innovation and R&D, boasting 1 municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing,理化 testing, welding testing, hydrostatic testing, and more, equipped with over 600 pieces 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 R&D of key products such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat recovery has successively been included in multiple Shandong Province Department of Industry and Information Technology scientific and technological innovation projects, Shandong Province key projects, and Heze City innovation and excellence 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, in collaboration with Professor Li Yajiang of Shandong University, has developed deep cryogenic vessel processing technology using the internationally recognized plasma arc + filler wire argon arc welding (PAW-GTAW) technology. After provincial-level scientific and technological achievement evaluation, the technology level has reached international standards in the field of deep cryogenic vessel manufacturing.
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