Shandong Zhongjie Special Equipment specializes in products such as fuel (gas) boilers, organic heat carrier boilers, biomass boilers, waste heat recovery boilers, and other boiler products; vacuum insulation cryogenic pressure vessels like LNG, oxygen/nitrogen/argon tanks, and CO2 tanks; pressure vessel products including denitrification engineering equipment, heat storage equipment, and complete chemical equipment sets; central air conditioning and HVAC equipment like ground (water) source heat pumps, air source units, water-cooled screw units, and air-cooled modules. Planned products include large-scale energy centers, LNG transport vehicles, LNG tank containers, and other green energy equipment.
Carbon dioxide storage tanks offer several advantages: - High storage density: These tanks can compress carbon dioxide gas into a liquid, significantly increasing storage density. Compared to gas storage, liquid CO2 can hold more carbon dioxide in a smaller tank, saving space and costs. - Multiple applications: Carbon dioxide tanks are widely used in various fields, including food and beverage industries, manufacturing, fire suppression, and gas supply. CO2 serves as a preservative, carbonation agent, gas, and fire extinguisher, with extensive uses and market demand. - Environmental 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 CO2, we can reduce its emissions into the atmosphere, promoting environmental protection and sustainable development. - Safe and reliable: Storage tanks are typically made of high-strength materials (such as carbon steel or stainless steel) during design and manufacturing, ensuring excellent pressure resistance and safety. The tanks are usually equipped with safety valves, pressure gauges, level indicators, and other accessories to ensure safe operation. Moreover, CO2 is a non-flammable and non-explosive gas, making it relatively safe. - Supply: Carbon dioxide tanks provide a stable supply of CO2. Through tank design and control systems, precise measurement and supply of CO2 can be achieved, meeting various industrial and application needs. These benefits make carbon dioxide storage tanks a crucial storage and supply equipment, widely used across multiple industries. However, it is essential to follow relevant safety operating procedures and standards when using carbon dioxide storage tanks to ensure safe operation and use.

There are several types of carbon dioxide storage tanks: - Atmospheric Pressure 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 Tanks: High-pressure tanks are used for storing carbon dioxide at pressures above atmospheric pressure. They are commonly employed in industrial sectors like chemical processing and refrigeration. - Liquid Storage Tanks: These tanks are designed for liquefying and storing carbon dioxide at temperatures below room temperature. They are typically used for large-scale storage needs of liquid carbon dioxide, such as in food freezing and pharmaceutical manufacturing. - Vapor Storage Tanks: Vapor storage tanks are used to store gaseous carbon dioxide at temperatures and pressures suitable for vaporization. They are often used in situations where liquid carbon dioxide needs to be vaporized for supply, like carbonation in beverages and welding. - Insulated Tanks: Insulated tanks have excellent thermal insulation properties to reduce heat transfer and liquid evaporation. They are commonly used for long-term storage of liquid carbon dioxide, such as in scientific research and refrigeration. It is essential to select the appropriate type of carbon dioxide storage tank based on specific application requirements and scenarios, and to operate and manage them in accordance with relevant regulations and standards.

Carbon dioxide level gauges are devices used to measure and monitor the liquid level of CO2 within storage tanks. Common types of CO2 level gauges, based on different working principles and application needs, include: - Buoy Level Gauges: Utilize the floating and sinking of a buoy to indicate level highs and lows, measured through a mechanical device or electrical signal sensor connected to the gauge. - Pressure Level Gauges: Measure level by the relationship between liquid pressure and level. The liquid's pressure on the sensor is measured to calculate the level height. - Ultrasonic Level Gauges: Measure level using the propagation time of ultrasound. An ultrasonic transmitter emits waves, and when the beam hits the liquid surface, part of it is reflected back. The level height is calculated by measuring the reflection time. - Capillary Level Gauges: Measure level using the capillary principle. Liquid rises in a thin tube, and the level height is calculated based on the liquid's rise. - Wave Reflective Level Gauges: Measure level by reflecting waves. A transmitter emits waves, and when the beam hits the liquid surface, part is reflected back. The level height is calculated by measuring the reflection time. The application of these level gauges in CO2 storage tanks can be chosen based on specific requirements and tank design. When selecting and installing level gauges, factors such as liquid properties, working environment, and precision requirements should be considered, ensuring compatibility with the tank's safe operation and monitoring system.

Common drawbacks of corrosion in pressure vessels during use include: Chemical Media: Certain chemical media are corrosive, such as acids, bases, salts, etc. When these media come into contact with the vessel material, corrosion may occur. Humidity and Moisture: High humidity environments or long-term exposure to moisture can cause corrosion on the vessel surface. Particularly in the presence of oxygen, the corrosion rate may increase. Rusting: When the protective layer on the vessel surface (such as coatings or plating) is damaged or destroyed, rusting may occur. Rusting can damage the vessel surface and may lead to further corrosion. Electrochemical Corrosion: When different metals or metals and non-metals come into contact, electrochemical corrosion batteries may form. This type of corrosion can cause localized corrosion on the vessel surface. Welding Defects: Defects such as weld porosity and cracks may be introduced during the welding process. These defects may become starting points for corrosion. Corrosion weakens the structural strength of the vessel, increasing the risk of leakage or rupture. Therefore, regular inspection and maintenance of the corrosion prevention layer, coating, or plating on pressure vessels are important. If corrosion issues are found, immediate measures should be taken to repair or replace damaged parts. In addition, choosing appropriate materials and corrosion prevention measures, as well as proper operation and maintenance methods, can reduce the risk of corrosion in pressure vessels. Adhering to relevant safety operating procedures and standards ensures the safe operation of pressure vessels.
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