Shandong Zhongjie Special Equipment Co., Ltd. specializes in the following products: fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels such as LNG tanks, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage and energy storage equipment, and complete chemical equipment sets; central air conditioning and HVAC equipment such as ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modular units. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Changjie Special Equipment is a company engaged in the manufacturing of low-temperature liquid storage tanks. They offer design, manufacturing, and installation services for low-temperature liquid carbon dioxide storage tanks. Below is an introduction to the low-temperature liquid carbon dioxide storage tanks produced by Changjie Special Equipment: Tank Type: The low-temperature liquid carbon dioxide storage tanks produced by Changjie Special Equipment are typically vertical or horizontal in design, chosen based on customer needs and site conditions. Material: The tanks are mainly made of low-temperature steel, which offers excellent corrosion and low-temperature resistance. Insulation Layer: The tanks are internally insulated to reduce heat transfer and liquid evaporation. The insulation layer usually consists of multiple layers, including thermal insulation materials and an external protective layer. Safety Valve and Pressure Relief Device: The tanks are equipped with safety valves and pressure relief devices to control internal pressure, preventing overpressure and explosion. Level Indicator: The tanks are fitted with level indicators to monitor the liquid level within the tank, ensuring controlled and managed storage of liquid volumes. Safety Measures: Changjie Special Equipment's low-temperature liquid carbon dioxide storage tanks comply with relevant safety regulations and standards. They have implemented various safety measures, such as fire and explosion prevention measures, leak detection, and alarm systems. Customized Design: Based on customer needs and application scenarios, Changjie Special Equipment can provide customized design and manufacturing services to meet the specific requirements of different customers.

Carbon dioxide synthesis is a chemical reaction that utilizes carbon dioxide to create compounds. This process has several applications: - Fertilizer production: It is an essential raw material for manufacturing fertilizers, and carbon dioxide synthesis offers a sustainable production method. By reacting with carbon dioxide, it can synthesize compounds used in nitrogen fertilizers, such as urea. This approach reduces reliance on fossil fuels used in traditional production methods and decreases greenhouse gas emissions. - Energy storage: Carbon dioxide synthesis can also serve as a form of energy storage. By reacting carbon dioxide, energy can be stored in the form of chemical bonds. When energy is needed, the reverse reaction can decompose the compounds into carbon dioxide and, releasing the stored energy. - Fuel cells: It can act as a clean fuel for fuel cells. By synthesizing carbon dioxide with the reaction and then using it in fuel cells, electricity can be generated, with only water and nitrogen as byproducts, reducing environmental pollution. - Chemical synthesis: It is an important raw material for the synthesis of many chemicals. Carbon dioxide synthesis can provide a sustainable supply for the chemical industry, used to synthesize other chemicals, such as etc. The development of carbon dioxide synthesis technology aims to reduce dependence on fossil fuels used in traditional production methods, decrease greenhouse gas emissions, and promote the development of sustainable energy and the chemical industry. However, this technology is still in continuous development and research, requiring further technological breakthroughs and practical verification to achieve large-scale application.

Carbon dioxide tanks possess the following characteristics: - High-pressure Vessel: Carbon dioxide tanks are typically designed as high-pressure vessels, capable of withstanding high pressures. This is because carbon dioxide requires a high pressure at room temperature to remain in a liquid state. - High Oxidizing Property: Carbon dioxide has a high oxidizing property, which can support combustion. Therefore, when using and storing carbon dioxide, precautions should be taken to prevent contact to avoid the risk of fire and explosion. - Low-Temperature Storage: Carbon dioxide is in a gaseous state at room temperature but can be compressed into a liquid at lower temperatures. As such, carbon dioxide tanks usually need to have excellent insulation to maintain the low-temperature liquid state of the stored carbon dioxide. - High Density: Liquid carbon dioxide has a high density, allowing for the storage of large amounts of carbon dioxide in a relatively small volume. This makes carbon dioxide tanks useful in scenarios requiring substantial carbon dioxide supply. - Safety Valve and Pressure Control: To ensure the internal pressure of the tank remains within a safe range, carbon dioxide tanks are usually equipped with safety valves and pressure control devices. These devices monitor and control the internal pressure of the tank to prevent excessive pressure from causing the tank to burst. - Corrosiveness: Carbon dioxide has some corrosive properties, particularly in high-humidity environments. Therefore, the materials and corrosion prevention measures for the tank should consider the corrosiveness of carbon dioxide to ensure the tank's durability and safety. These characteristics make carbon dioxide tanks widely applicable in many industries, such as the food and beverage industry, fire suppression, and the gas industry. When using carbon dioxide tanks, it is necessary to follow relevant safety operating procedures and standards to ensure the safety of operations.

There are several types of carbon dioxide storage tanks: Atmospheric Storage Tanks: These are containers designed for storing carbon dioxide at pressures close to atmospheric pressure. They are suitable for low-pressure applications such as the beverage industry and gas fire suppression systems. High-Pressure Storage Tanks: High-pressure storage tanks are used for storing carbon dioxide at pressures above atmospheric pressure. They are commonly used in industrial sectors like chemicals and refrigeration. Liquid Storage Tanks: These tanks are designed to store liquid carbon dioxide at temperatures below ambient. They are typically used in scenarios requiring large quantities of liquid carbon dioxide, such as food freezing and pharmaceutical manufacturing. Gas Storage Tanks: Gas storage tanks are for storing gaseous carbon dioxide, with temperatures and pressures suitable for the vaporization process. They are often used in applications that require vaporizing liquid carbon dioxide, like beverage carbonation and welding. Insulated Storage Tanks: Insulated storage tanks have excellent thermal insulation properties, reducing heat transfer and liquid evaporation. They are usually used for long-term storage of liquid carbon dioxide, such as in scientific research and refrigeration. It's essential to select the appropriate carbon dioxide storage tank type based on specific application needs and scenarios, and to operate and manage them in accordance with relevant regulations and standards.
Our company highly values technological innovation and R&D, boasting one municipal enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical tests, welding tests, hydrostatic tests, etc. We are 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, and more. Our developed key products such as temperature and pressure vessel welding, biomass boiler emission reduction, and waste heat utilization have successively been selected for multiple Shandong Province Department of Industry and Information Technology innovation projects, Shandong Province key projects, and Heze City innovation and excellence 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, in collaboration with Professor Yajiang Li of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire argon arc welding (PAW-GTAW) technology. After provincial scientific and technological achievement identification, the technology level has reached international standards in the field of deep cryogenic container manufacturing. Choose ZJ Special Equipment, let's create brilliance together!