Shandong Zhongjie Special Equipment Co., Ltd. (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-freeze containers, pressure vessels, central air conditioning, engineering installation, international trade, and the 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 people, including 247 engineering and technical personnel and 82 middle-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 material directly affects its corrosion resistance, strength, and sealing performance. Common materials include carbon steel and stainless steel, etc. Selecting 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 specifications and standards, such as industry standards. A well-designed tank ensures sufficient strength and safety under normal operating conditions. Safety Accessories: The tank's safety accessories, such as safety valves, pressure sensors, and temperature sensors, play a crucial role in quality and safety. Selecting high-quality accessories and ensuring proper installation and adjustment can improve the tank's quality and safety. Inspection and Testing: The tank must undergo inspections and tests during production, including material inspections, weld inspections, and pressure tests. These tests ensure the tank meets quality requirements and complies with safety standards. Use and Maintenance: The tank's use and maintenance also impact its quality. Proper use and regular maintenance can extend the tank's lifespan and maintain its good working condition. In summary, the quality of CO2 storage tanks is affected by material quality, manufacturing process, design specifications, safety accessories, inspections and testing, and use and maintenance. When selecting and using tanks, attention should be given to these factors to ensure quality and safety.

Carbon dioxide storage tanks are classified as pressure vessels. Pressure vessels are sealed containers designed to withstand internal pressure, used for storing and transporting gases, liquids, or mixtures. A carbon dioxide storage tank is a pressure vessel specifically designed for storing and transporting carbon dioxide, featuring unique design and structure to ensure safe storage and usage of carbon dioxide. Depending on design and application, carbon dioxide storage tanks can be vertical or horizontal, with varying capacities and pressure ratings. When using carbon dioxide storage 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 established 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, like 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, like EN 13445 and EN 14382, covering design, manufacturing, and inspection requirements for liquefied gas storage tanks. Additionally, there may be other industry standards and specifications applicable to carbon dioxide storage tanks based on specific application needs, such as standards related to the food and beverage industry, and industry-specific standards. When using carbon dioxide storage tanks, it is necessary to select applicable technical specifications based on specific application requirements and local regulations, ensuring that the design, manufacturing, and use of the tanks comply with the corresponding 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 storing it in gas form, liquid carbon dioxide can be stored in a smaller tank, saving space and costs. Multiple application fields: Carbon dioxide storage tanks are widely used in various industries, including food and beverage, manufacturing, fire suppression, and gas supply. Carbon dioxide serves as a preservative, beverage effervescent 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 contributes to warming and climate change. By storing and utilizing carbon dioxide, we can reduce its emissions into the atmosphere, achieving environmental protection and sustainable development. Safe and reliable: During design and manufacturing, carbon dioxide storage tanks typically use high-strength materials (such as carbon steel or stainless steel) with excellent pressure resistance and safety. The tanks are usually equipped with safety valves, pressure gauges, level indicators, and other accessories to ensure safe operation. Additionally, carbon dioxide 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, precise measurement and supply of carbon dioxide can be achieved, meeting the needs of various industries and applications. In summary, carbon dioxide storage tanks offer high storage density, multiple 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, etc. We possess over 600 pieces of various 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 innovative and excellent projects. We have accumulated a total of 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 container processing technology using the international plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technology. After the provincial-level scientific and technological achievement appraisal, the technology level has reached the international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!