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 seven business centers: boilers, 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 area of 200,000 square meters, with the main workshop spanning 83,000 square meters. Currently, there are 710 employees, including 247 engineering and technical personnel 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 of Shandong Province" by the Industrial and Information Technology Department. In June 2022, it was recognized as a "Gazelle Enterprise of 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.
Design requirements for carbon dioxide storage tanks typically include the following aspects: - Pressure Vessel Design: Carbon dioxide storage tanks are generally designed as high-pressure vessels capable of withstanding high pressures. The design must comply with relevant standards and regulations, such as Standard GB150 "Steel Pressure Vessels." - Material Selection: The choice of materials for the tank should consider the properties of carbon dioxide, such as high pressure, high oxidizability, and corrosiveness. Common materials include carbon steel and stainless steel, selected based on specific working conditions and requirements. - Safety Valves and Pressure Control: The tank should be equipped with safety valves and pressure control devices to ensure the internal pressure of the tank remains within a safe range. Safety valves should be selected according to design requirements and checked and tested regularly to ensure proper operation. - Insulation Performance: As carbon dioxide needs to be maintained in a liquid state at low temperatures, the tank should have good insulation properties to prevent excessive evaporation of liquid carbon dioxide and energy loss. The selection and design of insulation materials and layers should take into account working temperatures and environmental conditions. - Leak Detection and Alarm: The tank should be fitted with leak detection devices and an alarm system, as well as corresponding monitoring equipment. These devices can detect leaks in a timely manner and trigger alarms, allowing for appropriate measures to be taken. - Structural Strength and Stability: The structural design of the tank should be sufficiently strong and stable to withstand internal pressure and external loads. The structural design must comply with relevant standards and regulations, such as Standard GB12337 "Pressure Vessel Design Specifications." - Safe Operation and Maintenance: The design of the tank should consider the ease of safe operation and maintenance, such as the placement of manholes, inspection ports, and drainage outlets.

Zhongjie Special Equipment is a company specializing in the manufacturing of low-temperature liquid storage tanks. They offer design, manufacturing, and installation services for low-temperature liquid carbon dioxide storage tanks. Here is an introduction to the low-temperature liquid carbon dioxide storage tanks produced by Zhongjie Special Equipment: Tank Type: The low-temperature liquid carbon dioxide storage tanks produced by Zhongjie Special Equipment typically come in vertical or horizontal designs, chosen based on customer needs and site conditions. Material: The tanks are primarily made of low-temperature steel, offering 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 multi-layer structures, 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 explosions. Level Indicator: The tanks are fitted with level indicators to monitor the liquid level inside, ensuring controlled and managed storage volume. Safety Measures: Zhongjie Special Equipment's low-temperature liquid carbon dioxide storage tanks comply with relevant safety regulations and standards, implementing various safety measures such as fire and explosion prevention, leak detection, and alarm systems. Customized Design: Based on customer requirements and application scenarios, Zhongjie Special Equipment can provide customized design and manufacturing services to meet the specific needs of different customers.

The filling process for carbon dioxide storage tanks typically includes the following steps: Preparation: Ensure the tank and filling equipment are in good working condition. Inspect the tank's appearance and valves for any damage or leaks. Check the filling equipment's connection pipes and valves for looseness or leaks. Prepare liquid carbon dioxide: Extract liquid carbon dioxide from the supply source and transfer it to the tank of the filling equipment. Ensure the quality and purity of the liquid carbon dioxide meet the requirements. Connect filling equipment: Attach the outlet pipe of the filling equipment to the tank's inlet valve. Ensure the connection is secure and there are no leaks. Open valves: Activate the corresponding valves on the filling equipment and the tank to allow liquid carbon dioxide to flow into the tank. Adjust the valves as needed to control the filling speed and pressure. Monitor liquid level: Use a liquid level sensor or other level measurement devices to monitor the liquid carbon dioxide level in the tank in real-time. Ensure the level is within a safe range and avoid over-filling. Filling complete: Once the liquid level in the tank reaches the predetermined filling amount, close the corresponding valves on the filling equipment and the tank to stop the filling of liquid carbon dioxide. Inspection and cleaning: Check the valves and pipe connections during the filling process for any leaks. Clean up any remaining liquid carbon dioxide around the filling equipment and tank. Documentation and reporting: Record relevant information about the filling process, including the filling date, filling amount, and level monitoring results. Submit filling reports to relevant departments or management as needed. The above is a general carbon dioxide storage tank filling process. Specific operations should be carried out according to the characteristics and requirements of the tank. When performing filling operations, follow relevant safety operating procedures and have trained professionals handle the tasks.

CO2 flooding is a commonly used增产 technique for enhancing oil recovery in oilfields. It involves injecting CO2 gas into the reservoir to alter its physical and chemical properties, thereby promoting fluid flow and increasing recovery rates. The working principle of CO2 flooding is as follows: Dissolution Principle: CO2 has a high solubility in oil. When CO2 gas is injected into the reservoir, it dissolves in the oil, reducing viscosity and surface tension, making it more fluid. Expulsion Drive Principle: After CO2 gas is injected into the reservoir, it expands to form a gas phase, increasing the reservoir pressure and pushing the oil towards the wellbore. Additionally, CO2's high permeability can improve the reservoir's permeability and enhance fluid flow. Chemical Reaction Principle: CO2 reacts with certain components in the oil, producing soluble substances that further reduce viscosity and improve fluidity. CO2 flooding technology offers certain advantages in oilfield development, such as: Environmental Friendliness: CO2 is a clean, non-toxic, and renewable gas. Using CO2 flooding can reduce environmental pollution. Economic Viability: CO2 flooding can increase oil recovery rates and production, thereby enhancing economic benefits. Sustainability: CO2 can be separated from air or captured and stored from industrial flue gases, allowing for the recycling of CO2 and ensuring sustainability. It is important to note that the application of CO2 flooding technology requires consideration of reservoir characteristics, geological conditions, and economic feasibility factors. A comprehensive reservoir evaluation and engineering design must be conducted before implementing CO2 flooding to ensure the effectiveness and safety of the technology.
Our company places great importance on technological innovation and research and development, boasting 1 municipal-level enterprise technology center in Heze City. We have established testing facilities for non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and more. Equipped with over 600 pieces of 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, we have developed key products such as temperature-pressure vessels for welding, biomass boiler emissions reduction, and waste heat recovery. These technologies have successively been shortlisted for multiple Shandong Provincial Department of Industry and Information Technology scientific and technological innovation projects, Shandong Provincial key projects, and Heze City innovation and excellence projects. We have cumulatively obtained 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 Li Yajiang of Shandong University, has developed deep cryogenic container processing technology using the international plasma arc + filler wire argon arc welding (PAW-GTAW) technology, which has been appraised as reaching an international level in the field of deep cryogenic container manufacturing by the provincial-level scientific and technological achievement assessment. Choose Zhongjietech, let's create brilliance together!