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 containers, pressure vessels, central air conditioning, engineering installation, international trade, and the Internet of Things. It has three manufacturing sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters. The main workshop spans 83,000 square meters. The company currently employs 710 people, including 247 engineering and technical staff and 82 intermediate-level technical personnel. It was recognized as a "High-tech Enterprise" by the Science and Technology Department in December 2016, as a "Specialized and New Enterprise in Shandong Province" by the Ministry of Industry and Information Technology in June 2021, as a "Gazelle Enterprise in Shandong Province" by the Ministry of Industry and Information Technology in June 2022, and as a "Specialized and New Small Giant Enterprise" by the Ministry of Industry and Information Technology in August 2022.
Urea synthesis from carbon dioxide is a significant chemical reaction with several applications: - Urea Production: Urea is a crucial nitrogen fertilizer and chemical, widely used in both agricultural and industrial sectors. Carbon dioxide synthesis is one of the commonly used methods for urea production. In this process, carbon dioxide reacts under high temperature and pressure to form urea. This method utilizes carbon dioxide resources, reducing reliance on fossil fuels used in traditional urea production. - Urea Fuel: Urea can also serve as a urea fuel for internal combustion engines and combustion equipment. By heating and decomposing urea, it releases energy that reacts with oxygen in the air to produce combustion heat. This combustion process only produces water vapor and nitrogen as by-products, minimizing environmental pollution. - Chemical Synthesis: Urea is an essential raw material for the synthesis of many chemicals. The carbon dioxide synthesis of urea provides a sustainable supply for the chemical industry, used in the production of other chemicals such as plastics, resins, paints, etc. - Energy Storage: Urea can also act as a medium for energy storage. By synthesizing urea from carbon dioxide, energy can be stored in the form of chemical bonds. When energy is needed, it can be released by decomposing urea, which then reacts with oxygen in the air to produce combustion heat and release stored energy. The development of carbon dioxide synthesis urea technology aims to reduce dependence on fossil fuels used in traditional urea production methods, lower greenhouse gas emissions, and promote the development of sustainable agriculture and chemical industries. However, this technology is still under development and research, requiring further technical breakthroughs and practical verification for large-scale application.

Carbon dioxide (CO2) and liquid oxygen (LOX) storage tanks are equipment designed for storing different gases, with some differences in their physical properties: - Physical State: Carbon dioxide is a gas at room temperature and requires low temperatures and high pressure to liquefy. Liquid oxygen is a liquid at room temperature and can remain in liquid form without special conditions. - Storage Temperature: The liquid storage temperature for carbon dioxide typically ranges from -40°C to -78.5°C, whereas for liquid oxygen, it is usually between -183°C and -183.15°C. Liquid oxygen has a lower storage temperature and requires more stringent insulation measures. - Storage Pressure: The liquid storage pressure for carbon dioxide usually falls between 5-20 MPa, while for liquid oxygen, it is typically between 0.2-2 MPa. Liquid oxygen has a lower storage pressure. - Density: The density of liquid carbon dioxide is approximately 0.8 g/cm³, while that of liquid oxygen is about 1.14 g/cm³. Liquid oxygen has a higher density. - Safety: Liquid oxygen has a high oxygen content, making it highly flammable and oxidizing, necessitating stricter safety measures. Carbon dioxide is relatively safe but can still be harmful to humans at high concentrations.

When planning a CO2 storage tank, the following requirements should be considered: - Safety Distance: The tank should maintain an adequate distance from surrounding buildings, equipment, and personnel to prevent injuries and losses in case of accidents. Specific requirements for safety distance may vary according to local regulations and standards. - Tank Capacity: Determine the tank's capacity based on actual needs and usage. The choice of capacity should consider the amount of CO2 used, storage cycle, and supply requirements, among other factors. - Tank Layout: The layout of the tank should take into account ease of operation and maintenance, as well as safety and environmental protection requirements. There should be sufficient spacing between tanks for ease of operation and maintenance. - Tank Material: Choose appropriate materials for manufacturing the tank to ensure its corrosion and pressure resistance. Common materials include carbon steel, stainless steel, etc. - Safety Equipment: The tank should be equipped with necessary safety equipment such as safety valves, pressure sensors, temperature sensors, etc., to ensure safe operation. - Leak Protection: Measures should be taken to prevent CO2 leaks, such as sealed valves and leak detection systems. Corresponding leak handling measures and emergency response plans should also be in place. - Environmental Impact Assessment: An environmental impact assessment should be conducted when planning the tank to evaluate its impact on the surrounding environment and implement appropriate measures for environmental protection. - Regulations and Standards: Compliance with local regulations and standards, including building codes, safety specifications, and environmental protection requirements, is essential when planning the tank. Note that planning a CO2 storage tank should be carried out by engineers or relevant institutions to ensure compliance with safety and environmental protection requirements. Consulting with local authorities for advice and guidance is also necessary.

Carbon dioxide storage tanks offer several advantages: 1. High storage density: These tanks can compress carbon dioxide gas into a liquid state, significantly increasing storage density. Compared to storing in gas form, liquid carbon dioxide can be stored in smaller tanks, saving space and costs. 2. Multiple application areas: Carbon dioxide storage tanks are widely used in various fields, including the food and beverage industry, manufacturing, firefighting, and gas supply. Carbon dioxide serves as a preservative, carbonation agent, gas, and extinguishing agent, with extensive applications and market demand. 3. 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 carbon dioxide, we can reduce its emissions into the atmosphere, achieving environmental protection and sustainable development. 4. Safe and reliable: During design and manufacturing, carbon dioxide storage tanks typically use high-strength materials (such as carbon steel or stainless steel) with good pressure resistance and safety. The tanks are usually equipped with safety valves, pressure gauges, and level gauges to ensure safe operation. Additionally, carbon dioxide is a non-flammable and non-explosive gas, making it relatively safe. 5. Supply: Carbon dioxide storage 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. These advantages make carbon dioxide storage tanks an essential storage and supply equipment, widely used in multiple industries. However, safety operation procedures and standards must still be followed when using carbon dioxide storage tanks to ensure safe operation and use.
Our company highly values technological innovation and R&D design. We possess 1 municipal-level enterprise technology center in Heze City, equipped with non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and other testing facilities. 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, etc. The key products and technologies we have developed, such as welding for temperature and pressure vessels, 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 projects, Shandong Provincial key projects, and Heze City innovative and excellent 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 from Shandong University, has developed deep cryogenic vessel processing technology using the internationally recognized plasma arc + filler wire tungsten inert gas arc welding (PAW-GTAW) technique. After provincial-level scientific and technological achievement appraisal, our technology level in deep cryogenic vessel manufacturing has reached an international standard. Choose ZJ Special Equipment, and let's create brilliance together!