Shandong Zhongjie Special Equipment (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 seven business centers: boilers, cryogenic containers, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three manufacturing sites at 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 people, 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 named a "Gazelle Enterprise in Shandong Province" and in August 2022, it was recognized as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Safety requirements for steam boiler valves primarily include the following aspects: Valve Selection: Choose the appropriate type and specification of valves for steam boilers. Valves must comply with relevant standards and specifications, and possess characteristics such as high-temperature resistance, pressure resistance, and corrosion resistance. Valve Installation: Install valves correctly at the corresponding positions on the steam boiler. Ensure that the connections are secure and the seals are reliable to prevent leaks and loosening during installation. Valve Operation: The operation of valves should be easy and flexible, allowing for accurate control of steam flow and pressure. Handles or devices should be clearly marked with the direction of opening and closing, as well as the corresponding operation methods. Valve Sealing: The sealing performance of valves is crucial. Valves should have good sealing properties to prevent steam leakage and energy loss. The sealing surfaces should be flat and smooth, and able to withstand high temperatures and wear. Valve Maintenance: Regularly inspect and maintain valves to ensure their normal operation and safety performance. This includes cleaning valves, inspecting sealing surfaces, lubricating moving parts, and promptly repairing or replacing damaged components. Safety Valves: Safety valves must be installed on steam boilers to protect the safe operation of the boiler. Safety valves must comply with relevant standards and specifications and should automatically open to release excess pressure steam when over the set pressure, preventing boiler explosions. Valve Identification: Valves should be marked with their type, specification, working pressure, and flow rate information. This helps operators correctly identify and operate valves, avoiding incorrect operations and accidents. It should be noted that the above safety requirements are general guidelines, and specific safety requirements should be determined based on the type, scale, and operating environment of the steam boiler. When using valves, follow relevant laws, regulations, and safety operation procedures to ensure the safe and effective operation of the valves.

Steam boiler equipment water treatment refers to the process of treating water in steam boilers to ensure normal boiler operation and extend the lifespan of the equipment. Below is some basic knowledge about steam boiler equipment water treatment: Water Quality Requirements: The water quality in steam boilers requires high standards, typically necessitating the removal of impurities, dissolved oxygen, and hardness substances. Impurities and hardness substances can lead to scaling and corrosion on the interior walls of the boiler, while dissolved oxygen can cause corrosion and the formation of bubbles. Removal of Impurities: Common methods for removing impurities from water include sedimentation, filtration, and ion exchange. Sedimentation involves adding chemicals to make impurities settle, filtration removes impurities through a filtering medium, and ion exchange uses resin to adsorb and exchange ions to remove impurities from the water. Adjusting Hardness: The hardness substances in water are mainly salts of calcium and magnesium, which can cause scaling on the interior walls of the boiler. Hardness can be adjusted by adding chemicals or using water softening equipment to prevent scaling issues. Removing Dissolved Oxygen: Dissolved oxygen can cause corrosion and the formation of bubbles. It can be removed by adding oxidizing agents or using deaeration equipment. Controlling pH: The pH of the water in steam boilers affects equipment corrosion and scaling. It is usually necessary to control the pH within an appropriate range, using buffers or regulators to adjust the pH. Regular Testing and Maintenance: Regular water quality testing of the steam boiler equipment should be conducted, including measuring hardness, dissolved oxygen, and pH levels. Appropriate water treatment measures and maintenance should be carried out based on the test results. Steam boiler equipment water treatment is a crucial aspect for ensuring normal boiler operation and extending the lifespan of the equipment. Rational water treatment measures can effectively prevent scaling, corrosion, and malfunctions on the interior walls of the boiler.

To ensure safe operations of industrial boilers, attention should be given to the following aspects: - Comply with laws and regulations: Understand and comply with relevant laws, regulations, and standards, including those for boiler safety management and standards for boiler use and maintenance. Ensure compliance with legal requirements throughout the operation process. - Establish a comprehensive management system: Develop a robust industrial boiler safety management system, clarify responsibilities and authorities, and standardize operational procedures and safety measures. Draft operational guidelines and emergency response plans to ensure orderly safe operations. - Training and education: Provide training and education for personnel involved in industrial boiler safety operations to enhance their safety awareness and skill levels. This includes operators, maintenance staff, and management personnel, all of whom should receive appropriate training. - Regular inspections and maintenance: Conduct regular inspections and maintenance of industrial boilers to ensure proper operation and safety performance. This includes checking and maintaining critical components such as the combustion system, water level control, safety valves, and pressure gauges. - Safety equipment and tools: Equip necessary safety equipment and tools, such as safety valves, pressure gauges, water level indicators, and burners, ensuring their proper operation and effectiveness. - Regular inspections and assessments: Conduct regular inspections and assessments of industrial boilers to ensure compliance with safety requirements. This includes regular pressure tests, water quality inspections, and combustion efficiency evaluations. - Safety records and documentation: Establish a comprehensive safety records and documentation management system, recording operational status, maintenance records, and accident reports for industrial boilers. Update and preserve relevant safety information promptly. - Regular drills and emergency response training: Organize regular safety drills and emergency response training to improve the ability to respond to emergencies and the efficiency of emergency handling. The above are basic points for ensuring safe operations of industrial boilers. Specific operations should be conducted based on actual conditions and relevant requirements.

During the operation of a thermal oil furnace, several important points should be noted: - Temperature Control: Throughout the operation of the thermal oil furnace, close attention and control of the thermal oil temperature are required. Ensure the temperature remains within a safe range to avoid decomposition of the oil at high temperatures or condensation and scaling at low temperatures. Regularly inspect and calibrate the temperature sensors to ensure accurate temperature measurement. - Pressure Control: Maintain an appropriate working pressure during the operation of the thermal oil furnace. Excessive pressure can lead to equipment damage or leaks, while insufficient pressure can reduce heat transfer efficiency. Regularly inspect and maintain the pressure gauge and safety valve to ensure accurate and safe pressure control. - Oil Quality and Cleanliness: The quality and cleanliness of the thermal oil are crucial for the normal operation of the furnace. Regularly inspect and replace the thermal oil to ensure it meets quality and performance requirements. Regularly clean and maintain heat exchangers, burners, and flues to prevent the accumulation of dust and dirt, which can affect heat transfer efficiency. - Regular Maintenance and Inspection: Regular maintenance and inspection of the thermal oil furnace are necessary to ensure its proper operation and extend its service life. Regularly inspect and clean burners, flues, and heat exchangers; check and replace seals and valves; inspect and calibrate safety devices to ensure equipment safety and reliability. - Safe Operation: Strict adherence to operational procedures and safety protocols is required during the operation of the thermal oil furnace. Operators must possess the relevant skills and knowledge.
Our company attaches great importance to technological innovation and research and development. 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 utilization, 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 accumulated 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 of Shandong University, has developed deep cryogenic vessel processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. The provincial-level scientific and technological achievement identification has confirmed that the technology level in the field of deep cryogenic vessel manufacturing has reached an international standard.
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