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 7 business centers: boilers, deep-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three factory areas on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters, with the main workshop area being 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 recognized as a "Gazelle Enterprise in Shandong Province" and in August 2022, it was identified as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology.
Common defects in carbon dioxide storage tanks may include deformation during use. Below are some causes that could lead to tank deformation: Overpressure: When the internal pressure of the tank exceeds its design pressure, it may cause deformation. This could be due to operational errors, system failures, or other reasons. Temperature Fluctuations: 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 use methods can lead to uneven stress on the tank, causing 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, as well as to follow proper operational and installation procedures. If tank deformation or other defects are detected, use of the tank should be immediately stopped, and professional assistance should be sought for inspection and repair. Do not attempt to repair or continue using a defective tank yourself to ensure operational safety.

For the maintenance and care of low-temperature liquid storage tanks, here are some tips and precautions: Regular Inspections: Conduct regular checks of the tank's exterior, internal lining, valves, and pipe connections. Pay attention to signs of corrosion, cracks, or oil leaks. Cleaning and Draining: Regularly clean the interior of the tank to remove accumulated impurities and sediments. Also, drain the tank regularly to remove liquid and gas impurities. Corrosion Prevention Measures: The outer shell and inner lining of low-temperature liquid storage tanks should be treated for corrosion resistance. Regularly inspect and maintain the corrosion-resistant layer or coatings to ensure their integrity and effectiveness. Temperature and Pressure Control: Maintain the temperature and pressure of the low-temperature liquid storage tank within the design limits. Avoid extremes that could damage the tank. Safety Equipment Inspection: Check the tank's safety equipment, such as safety valves, pressure sensors, and temperature sensors, to ensure they are functioning properly. Verify that their set parameters meet requirements. Maintenance of Level Measurement Systems: Regularly inspect and calibrate the level measurement system to ensure accuracy and reliability. Clean or replace level sensors as needed. Fire Protection Measures: Fire protection for low-temperature liquid storage tanks is crucial. Ensure that fire protection equipment around the tank is in good condition and conduct fire drills regularly. Regular Assessments and Monitoring: Regularly assess and monitor the tank, including structural integrity, corrosion, and safety aspects. 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 for low-temperature liquid storage tanks. Training should include safe operation, leak handling, and emergency procedures.

In the event of a carbon dioxide cylinder leak, immediate action should be taken as follows: Ensure personnel safety: First, ensure people evacuate the leak area quickly and move away from any potential dangers. If necessary, use appropriate personal protective equipment, such as respirators and protective suits. Cut off the gas supply: As soon as possible, shut off the carbon dioxide supply to stop further leakage. Close the relevant valves or switches, or disconnect the cylinder. Prevent fire sources: Ensure there are no open flames or other potential heat sources that could ignite in the leak area. If there's a fire risk, take immediate appropriate fire-fighting measures. Ventilation: Activate ventilation equipment to increase air circulation, which helps dilute and remove the leaked carbon dioxide gas. Ensure the ventilation equipment is functioning properly and that the ventilation system does not introduce the gas to 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 follow their instructions. Please note that handling a carbon dioxide cylinder leak is a dangerous task and should only be performed by trained and experienced personnel. Always adhere to relevant safety operating procedures and guidelines during the process.

Key measures to ensure the quality of CO2 storage tanks include the following aspects: Selecting Qualified Suppliers: Choose suppliers with a good reputation and experience, ensuring that the tanks they provide meet relevant quality standards and regulations. This can be achieved by evaluating the supplier's qualifications, referencing customer reviews, and conducting on-site inspections to select the right supplier. Strict Quality Control: Implement rigorous quality control measures during the manufacturing process of the tanks. This includes selecting and inspecting raw materials, controlling production processes, monitoring process parameters, product testing, and ensuring the tanks meet quality requirements. Compliance with Standards and Regulations: The design, manufacturing, and installation of the tanks should comply with relevant standards and regulations, such as industry standards and specifications. These include structural design, material selection, welding processes, corrosion prevention measures, safety valves, and pressure sensor configurations. Regular Inspections and Maintenance: Regular inspections and maintenance are required during the use of the tanks to ensure safety and reliability. This involves checking the tank's appearance, seals, valves, and pipeline connections, conducting regular pressure tests and leak detection, and promptly addressing any anomalies. Establishing a Quality Management System: Establish a comprehensive quality management system, including quality control processes, documentation, quality training, and internal audits. By establishing a quality management system, tank quality control and continuous improvement can be ensured. Third-party Testing and Certification: Entrust third-party institutions to conduct testing and certification of the tanks to verify their quality and compliance. Third-party testing and certification bodies are typically independent and objective, providing impartial assessment and certification results. By implementing these measures, the quality of CO2 storage tanks can be effectively ensured, enhancing their safety and reliability.
Our company attaches great importance to technological innovation and research and development, with 1 city-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 various 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, etc. The key products and technologies we have developed, such as welding of temperature-pressure vessels, emission reduction of biomass boilers, and waste heat utilization, have successively been included in multiple Shandong Provincial Department of Industry and Information Technology Science and Technology Innovation Projects, key projects in Shandong Province, and Heze City Innovation and Excellence Projects, among other provincial and municipal science and technology projects. We have cumulatively obtained 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 Li Yajiang of Shandong University, has developed deep cryogenic container processing technology, utilizing the international plasma arc + wire-in-tube argon arc welding (PAW-GTAW) technology, and has been appraised as internationally competitive at the provincial level of scientific and technological achievements. Choose Zhongjie Special Equipment, and let's create brilliance together!