Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, Economic and Technological 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 Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total area of 200,000 square meters, with the main workshop spanning 83,000 square meters. It currently employs 710 staff, including 247 engineers and technicians, and 82 intermediate-level technicians. In December 2016, it was recognized as a "High-tech Enterprise" by the Science and Technology Department. In June 2021, it was named a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology. In June 2022, it was identified as 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.
Common defects in carbon dioxide tanks during use may include deformation. Below are some causes that may lead to tank deformation: Overpressure: When the internal pressure of the tank exceeds its design pressure, it can cause deformation. This could be due to operational errors, system failures, or other reasons. Temperature Changes: Carbon dioxide tanks expand and contract with temperature changes, and if the temperature changes are too extreme or rapid, it may result in tank deformation. Internal Corrosion: If there is internal corrosion in the tank, it can weaken the structural integrity of the tank, leading to deformation. External Damage: External impacts, compressions, or other physical damages can cause tank deformation. Incorrect Installation or Use: Incorrect installation or usage methods can cause uneven stress on the tank, resulting in deformation. Tank deformation can reduce the structural integrity of the tank and even pose risks of leakage or rupture. Therefore, it is important to regularly inspect and maintain the integrity of the tank and to follow proper operation and installation procedures. If tank deformation is detected or other defects are suspected, the tank should be immediately discontinued from use and professional assistance should be sought for inspection and repair. Do not attempt to repair or continue using a defective tank to ensure operational safety.

The safe operation of low-temperature carbon dioxide storage tanks is crucial and primarily involves the following aspects: Design and Manufacturing: The tank's design and construction must comply with relevant standards and regulations to ensure they can withstand working conditions under low temperatures and high pressures. The tank should possess sufficient strength and sealing performance to prevent leaks and ruptures. Safety Valves and Pressure Control: The tank should be equipped with safety valves and pressure control devices to ensure the internal pressure remains within safe limits. Safety valves should be inspected and tested regularly to ensure proper functioning. Temperature Control: Effective temperature control is necessary for low-temperature carbon dioxide storage tanks to prevent freezing or embrittlement due to excessively low temperatures. Appropriate insulation materials and equipment should be used to maintain the tank and pipeline temperatures within safe ranges. Leak Detection and Alarm: The tank should be fitted with leak detection equipment and an alarm system, along with corresponding monitoring devices. These can detect leaks promptly and trigger alarms for appropriate action. Safe Operation and Training: Operators should receive relevant training to understand the safe operation procedures and standards for low-temperature carbon dioxide storage tanks. Operators should be familiar with the tank's characteristics, working principles, and emergency response measures. Regular Inspections and Maintenance: Tanks should be inspected and maintained regularly, including visual inspections, anti-corrosion coating maintenance, and leak detection. Regular inspections can help identify potential issues early and implement necessary repairs. Emergency Preparedness: Establish an emergency response plan and equip with appropriate firefighting and first-aid equipment. Operators should be familiar with emergency procedures and able to respond swiftly to emergencies. Please note that these key points are general recommendations only; specific safe operating procedures should be based on the design and usage requirements of the low-temperature carbon dioxide storage tank. It is recommended to refer to the relevant safety operation manuals and guidelines before using the tank to ensure safety.

在二氧化碳储罐罐区进行安全操作时，需要遵循以下几个关键步骤和注意事项： 储罐区域划定：将储罐区域划定为专门的区域，并设置明确的标识和警示标志，以提醒人员注意安全。 人员培训：确保所有操作人员都接受过相关的培训，了解储罐的特性、操作规程和应急措施。培训内容应包括储罐的安全操作、泄漏处理、火灾应对等。 个人防护装备：所有进入储罐区域的人员都应佩戴适当的个人防护装备，如防护服、安全鞋、、手套等。这些装备可以提供保护，减少潜在的伤害风险。 操作规程：制定和遵守储罐的操作规程，包括储罐的开启、关闭、充装、排空等操作步骤。确保操作人员按照规程进行操作，避免操作失误和事故发生。 泄漏处理：储罐区域应配备适当的泄漏处理设备和材料，以应对可能的泄漏情况。操作人员应熟悉泄漏处理程序，并及时采取措施进行泄漏控制和清理。 火灾安全：储罐区域应配备适当的消防设备和灭火器材，并确保操作人员了解火灾应对程序。禁止在储罐区域内吸烟或使用明火，以防止火灾风险。 定期检查和维护：定期检查储罐的安全阀、压力表、温度传感器等设备的工作状态，并进行必要的维护和修理。确保储罐的正常运行和安全性。 应急预案：制定储罐区域的应急预案，包括事故报警、人员疏散、急救措施等。所有操作人员应熟悉应急预案，并定期进行演练和培训。 需要注意的是，以上是一般的安全操作指导，具体的操作要求可能会因不同的储罐设计和使用场景而有所差异。在进行储罐操作时，应遵循相关的安全操作规程和标准，确保操作的安全性和有效性。好咨询工程师或储罐制造商以获取具体的操作指导。

Prior to using the CO2 storage tank, the following preparations must be made: - Inspect the tank: Check for any visible damage, corrosion, or oil leakage on the tank's exterior. Ensure the structural integrity and safety of the tank. - Check valves and pipelines: Verify that the tank's inlet and outlet valves and pipeline connections are functioning properly with no leaks or loose fittings. Ensure valves operate smoothly and reliably. - Inspect safety accessories: Check that safety accessories such as safety valves, pressure sensors, and temperature sensors are working correctly. Confirm that their set parameters meet requirements. - Check the level measurement system: Verify the accuracy and reliability of the level measurement system. Calibrate the level sensors to ensure accurate level measurement. - Inspect the pressure relief device: Check that the tank's pressure relief device (e.g., safety valve) is functioning properly. Confirm that the set pressure of the pressure relief device meets requirements. - Check the gas quality: Ensure the CO2 gas within the tank meets quality standards with no impurities or contaminants. - Check fire protection facilities: Ensure that fire protection equipment around the tank is in good condition and that fire extinguishers, sprinkler systems, etc., are operating correctly. - Train operators: Operators should receive training on the characteristics, operational requirements, and safety measures of the CO2 storage tank. Training should include safe tank operation, leak handling, emergency procedures, etc. - These preparatory measures ensure that the CO2 storage tank is in good condition prior to use and guarantees the safety and reliability of operation. When performing the preparations, follow relevant safety operating procedures and have personnel carry out the operations.
Our company places a high priority on technological innovation and research and development, boasting 1 city-level enterprise technology center in Heze City. We have established test facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, etc. 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. The key products we have developed, such as welding technology for temperature and pressure vessels, biomass boiler emissions reduction, and waste heat utilization, have successively been included in multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, Shandong key projects, and Heze City innovation and excellence projects. We have cumulatively obtained 27 authorized utility models, 16 authorized inventions, participated in drafting 2 standards, 2 industry standards, and registered 15 trademarks. Our technical team, in collaboration with Professor Yajiang Li from Shandong University, has jointly developed deep cryogenic container processing technology using the internationally recognized plasma arc + flux cored arc welding (PAW-GTAW) technology. The provincial technological achievement evaluation has confirmed that our technology level in the deep cryogenic container manufacturing field has reached international standards. Choose Zhongjie Special Equipment, let's join hands to create brilliance!