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: boiler, deep-freezing containers, 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 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 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.
The quality of CO2 storage tanks is influenced by several factors: - Material Quality: The quality of the tank's material directly affects its corrosion resistance, strength, and sealing performance. Common materials include carbon steel and stainless steel. Choosing high-quality materials can enhance the tank's quality and lifespan. - Manufacturing Process: The manufacturing process significantly impacts the tank's quality. Welding, heat treatment, and surface treatment during production must comply with relevant standards and regulations to ensure structural integrity and performance stability. - Design Specifications: The tank's design must adhere to applicable design standards and regulations, such as industry standards. A well-designed tank ensures sufficient strength and safety under normal operating conditions. - Safety Accessories: The tank's safety accessories, like safety valves, pressure sensors, and temperature sensors, play a crucial role in quality and safety. Selecting high-quality accessories and ensuring proper installation and tuning can improve the tank's quality and safety. - Inspection and Testing: The tank must undergo inspections and tests during production, such as material inspections, weld inspections, and pressure tests. These checks ensure the tank meets quality requirements and complies with safety standards. - Usage and Maintenance: The tank's usage and maintenance also affect its quality. Proper usage and regular maintenance can extend the tank's lifespan and maintain its optimal operational condition. In summary, the quality of CO2 storage tanks is influenced by material quality, manufacturing process, design specifications, safety accessories, inspections and testing, and usage and maintenance. When selecting and using storage tanks, attention should be given to these factors to ensure quality and safety.

Carbon dioxide tanks are classified as pressure vessels. Pressure vessels are sealed containers capable of withstanding internal pressure, used for storing and transporting gases, liquids, or mixtures. Carbon dioxide tanks are pressure vessels specifically designed for storing and transporting carbon dioxide, featuring unique designs and structures to ensure safe storage and use. Depending on design and application, carbon dioxide tanks can be vertical or horizontal, with varying capacities and pressure ratings. When using carbon dioxide tanks, it is essential to comply with relevant regulations and standards to ensure safe operation and usage.

Technical specifications for carbon dioxide storage tanks can be formulated based on different application fields and/or regional standards. Below are some common technical specifications and standards for reference: - ASME Standards: The American Society of Mechanical Engineers (ASME) has issued a series of standards for pressure vessels, including specifications for carbon dioxide storage tanks, such as ASME BPVC Section VIII Division 1 and ASME BPVC Section VIII Division 2. - ISO Standards: The International Organization for Standardization (ISO) has published some standards related to pressure vessels, such as ISO 9809-1 and ISO 9809-2, covering design, manufacturing, and inspection requirements for steel gas cylinders. - GB Standards: The China National Bureau of Standards has issued a series of standards related to pressure vessels, such as GB 150 "Pressure Vessels" and GB 5099 "Steel Gas Cylinders," including design, manufacturing, and inspection requirements for carbon dioxide storage tanks. - DOT Standards: The United States Department of Transportation (DOT) has issued some standards related to pressure vessels and cylinders, such as DOT-3AA and DOT-4BA, covering design, manufacturing, and transportation requirements for liquefied gas storage tanks. - EN Standards: The European Committee for Standardization (CEN) has published some standards related to pressure vessels, such as EN 13445 and EN 14382, covering design, manufacturing, and inspection requirements for liquefied gas storage tanks. - Additionally, other industry standards and specifications may apply to carbon dioxide storage tanks based on specific application needs, such as those related to the food and beverage industry and industry-specific standards. When using carbon dioxide storage tanks, it is essential to select applicable technical specifications according to specific application requirements and local regulations, ensuring that the design, manufacturing, and use of the tanks comply with the relevant standards and specifications.

Carbon dioxide storage tanks offer the following features and advantages: High storage density: These tanks can compress carbon dioxide gas into a liquid state, significantly increasing storage density. Compared to gas storage, liquid carbon dioxide can store more CO2 in a smaller tank, saving space and costs. Various application fields: Carbon dioxide storage tanks are widely used in multiple industries, including food and beverage, manufacturing, fire suppression, and gas supply. CO2 serves as a preservative, carbonation agent, gas, and fire extinguisher, with broad applications and market demand. Environmental friendly and renewable: Carbon dioxide is an eco-friendly gas, and its increased concentration in the atmosphere can lead to warming and climate change. By storing and utilizing CO2, we can reduce its emissions into the atmosphere, achieving environmental protection and sustainable development. Safe and reliable: During design and manufacturing, carbon dioxide tanks typically use high-strength materials (such as carbon steel or stainless steel) for excellent pressure resistance and safety. The tanks are usually equipped with safety valves, pressure gauges, and level indicators to ensure safe operation. Additionally, CO2 is a non-flammable and non-explosive gas, making it relatively safe. Supply: These tanks provide a stable supply of carbon dioxide. Through tank design and control systems, accurate measurement and supply of CO2 can be achieved, meeting the needs of various businesses and applications. In summary, carbon dioxide storage tanks have high storage density, diverse application fields, environmental friendliness, renewable energy, safety, reliability, and supply. This makes them an important storage and supply equipment, widely used in various industries. However, when using carbon dioxide storage tanks, it is still necessary to follow relevant safety operating procedures.
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 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, and others. The key products and technologies we have developed, such as temperature and pressure vessel welding, biomass boiler emissions 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 a total of 27 authorized utility model patents, 16 authorized invention patents, 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 developed deep cryogenic container processing technology using the internationally recognized plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technique. This technology has been appraised as internationally competitive at the provincial level. Choose Zhongjie Special Equipment, and let's create brilliance together!