Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) holds an A-grade boiler manufacturing license, an A2-grade pressure vessel manufacturing license, an A2-grade pressure vessel design license, B-grade boiler installation and GB2, GC2 class pressure pipeline installation licenses, as well as a qualification for electromechanical equipment installation contracting. It is a member of the China Boiler and Water Treatment Association, the China Chemical Equipment Association, and a director unit of the Shandong Equipment Manufacturing Association. The company has also passed the ISO9001 Quality Management System, ISO14001 Environmental Management System, OHSAS18001 Occupational Health and Safety Management System certifications, and the American ASME/U2 certification.
In the event of a CO2 cylinder leak, immediate action should be taken as follows: Ensure personnel safety: First, ensure that people evacuate the leak area quickly and move away from potential hazards. If necessary, use appropriate personal protective equipment, such as respirators and protective suits. Cut off the gas source: As soon as possible, shut off the CO2 supply source to stop further leakage. Close related valves or switches, or disconnect from the cylinder. Prevent ignition sources: Ensure there are no open flames or other potential heat sources that could cause a fire in the leak area. If there is a fire risk, take appropriate fire-fighting measures immediately. Ventilation: Activate ventilation equipment to increase air circulation, which helps dilute and expel the leaked CO2 gas. Ensure that the ventilation equipment is operating properly and that the ventilation system does not introduce CO2 gas into other areas. Seal the leak point: If possible, attempt to seal the leak point using suitable materials or methods to reduce or stop the leakage. This may require assistance from personnel. Notify relevant departments: Promptly inform emergency, environmental protection, or other relevant agencies of the leak situation and act according to their instructions. Please note that handling a CO2 cylinder leak is a dangerous task and should only be performed by trained and experienced personnel. Always follow relevant safety operating procedures and guidelines during the process.

For the maintenance and care of low-temperature liquid storage tanks, here are some tips and precautions: - Regular Inspections: Regularly check the tank's exterior, internal lining, valves, and pipe connections for corrosion, cracks, or oil leaks. - Cleaning and Drainage: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, regularly drain the tank to remove liquid and gas impurities. - Corrosion Prevention: The exterior and inner lining of low-temperature liquid storage tanks should be treated with corrosion prevention measures. Regularly inspect and maintain the integrity and effectiveness of the protective layer or coating. - Temperature and Pressure Control: Maintain the tank's temperature and pressure within the design specifications to avoid damage from extreme temperatures or pressures. - Safety Equipment Checks: Inspect the tank's safety equipment, such as safety valves, pressure and temperature sensors, to ensure they are functioning properly and their set parameters meet requirements. - Level Measurement System Maintenance: Regularly check and calibrate the level measurement system for accuracy and reliability. Clean or replace level sensors as needed. - Fire Prevention Measures: Fire prevention is crucial for low-temperature liquid storage tanks. Ensure that fire protection equipment around the tank is in good condition and conduct regular fire drills. - Regular Assessments and Monitoring: Regularly assess and monitor the tank for structural integrity, corrosion, and safety. Take appropriate maintenance and repair actions based on assessment results. - Operator Training: Operators should be trained to understand the characteristics, operational requirements, and safety measures of low-temperature liquid storage tanks. Training should include safe operation, leak handling, and emergency procedures.

In everyday use, CO2 storage tanks require protection and maintenance to ensure proper operation and safety. Here are some common protection and maintenance methods: - Visual Inspection: Regularly check the tank's exterior for corrosion, wear, cracks, and other issues. If any anomalies are found, take prompt repair actions. - Seal Integrity Check: Regularly inspect the tank's sealing performance, especially at valve and pipe connections, and the tank's own seal. Ensure no leaks, and fix any that occur. - Temperature Control: Maintain a suitable ambient temperature around the tank and implement insulation measures to ensure the tank's internal low-temperature state. - Pressure Relief Device Inspection: Regularly check the tank's pressure relief devices, such as safety valves, to ensure they function correctly. Verify that the set pressure of the relief devices meets requirements and perform regular maintenance and replacements. - Level Monitoring: Regularly monitor the tank's liquid level to ensure accurate measurements. If an abnormal level is detected, promptly investigate the cause and take appropriate actions. - Regular Cleaning: Regularly clean the tank's interior to remove accumulated impurities and dirt. Be cautious during cleaning to avoid flammable and corrosive substances. - Regular Testing: Regularly conduct pressure tests and leak inspections on the tank to ensure safety performance meets standards. The frequency and methods should comply with relevant regulations and standards. - Storage Capacity Control: Control the tank's storage capacity to prevent exceeding the rated capacity. Overfilling can lead to excessive pressure and increased safety risks. Note: Specific protection and maintenance methods may vary depending on the type of tank and its application.

Carbon dioxide cylinder hydrostatic testing is a common quality inspection method used to verify the cylinder's sealing and pressure resistance. Below are the general steps for conducting hydrostatic testing on a carbon dioxide cylinder: Preparation: Ensure the cylinder interior is clean and the cylinder is emptied. Check the cylinder's valves, pipes, and joints to ensure they are well-sealed. Fill with Water: Fill the cylinder with water using tap water or other clean sources. Ensure even water distribution to avoid bubbles or dead spots. Apply Pressure: Use a pressure pump or other pressure equipment to gradually increase the water pressure until reaching the predetermined test pressure. The test pressure is typically determined based on the cylinder's design requirements and relevant standards. Maintain Pressure: After reaching the test pressure, hold it for a period, usually 15-30 minutes. During this time, observe for any leakage in the cylinder and check if the valves and joints are leaking. Pressure Release: Release the cylinder's water pressure, ensuring a slow and even release to avoid sudden pressure spikes. Inspection and Evaluation: After pressure release, inspect the cylinder's exterior and interior for leakage. Evaluate the test results to ensure the cylinder's sealing and pressure resistance meet the requirements. It should be noted that when conducting hydrostatic testing, safety operation procedures and standards should be followed to ensure the safety and reliability of the testing process. Depending on the cylinder's design and usage requirements, other types of tests can be conducted, such as pneumatic testing and ultrasonic inspections, to comprehensively assess the cylinder's quality and performance. Seek advice and guidance from consulting experts.
Our company attaches great importance to technological innovation and R&D design. 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, and more. 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 we have developed, such as temperature and pressure vessel welding, biomass boiler emissions reduction, and waste heat utilization, have been selected for multiple Shandong Provincial Department of Industry and Information Technology science and technology innovation projects, key provincial 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. Our technical team, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technique. The provincial-level scientific and technological achievement assessment has determined that our technology level in deep cryogenic container manufacturing has reached international standards. Choose Zhongjie Special Equipment, and let's create brilliance together!