Shandong Zhongjie Special Equipment (formerly Heze Boiler Factory Co., Ltd.) was established in 2001, located at No. 2218 Jinnan Road, 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 Internet of Things. It has three factory sites on Jinnan Road, East Changjiang Road, and Bohai Road, covering a total of 200,000 square meters, with the main workshop area being 83,000 square meters. It currently employs 710 people, including 247 engineers and technicians 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 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 use of low-temperature liquid storage tanks requires attention to the following matters:
Safe Operation: Operators must undergo training to understand the procedures and safety precautions for handling tanks. Adhere to proper operational steps to ensure safe operation.
Protective Gear: Operators must wear appropriate protective gear, such as thermal suits, gloves, etc., to safeguard themselves from the harm of low-temperature liquids.
Leak Protection: Regularly inspect the tanks and associated pipelines for seal integrity to prevent leakage of low-temperature liquids. Keep the area around the tanks clean to avoid debris obstructing leak detection and handling.
Fire Protection: Low-temperature liquids are highly flammable and fire prevention measures must be taken. Maintain a fire-free environment around storage tanks, prohibit smoking and open flames. Equip with appropriate fire extinguishing equipment to mitigate fire risks.
Pressure Control: Regularly inspect and maintain the pressure control system of the storage tank to ensure that the pressure inside remains within a safe range. Safety valves and pressure sensors, among other equipment, should operate normally, and abnormal pressure conditions should be detected and addressed promptly.
Insulation Protection: Low-temperature liquid storage tanks should be equipped with effective insulation to minimize heat transfer and liquid evaporation. The selection and installation of the insulation should comply with relevant standards and requirements.
Regular inspections and maintenance: Conduct regular checks of the tank's exterior and interior conditions, including checking for leaks, corrosion, wear, or other damage. Pay special attention to inspecting the tank's interfaces, valves, and pipelines to ensure they are functioning properly.
Emergency Preparedness: Develop an emergency response plan including measures for leaks, fires, and other unforeseen incidents. Operators should be familiar with the emergency response plan and be equipped with appropriate emergency equipment and fire fighting tools.

Low-temperature liquid storage tanks are equipment used for storing low-temperature liquids, commonly utilized for liquid oxygen, liquid nitrogen, liquid argon, and other low-temperature liquids. These liquids exist in a gaseous state at room temperature but are cooled to a liquid state at low temperatures for better storage and usage. These storage tanks are typically made of high-strength materials like stainless steel or aluminum alloy to withstand low temperatures and high pressures. They usually have an insulating layer inside to minimize evaporation and maintain the low-temperature state. The applications of low-temperature liquid storage tanks include but are not limited to the following areas: They are widely used in rocket engines and propulsion systems, such as liquid oxygen, liquid nitrogen, and liquid hydrogen storage tanks, for storing and supplying low-temperature liquids as fuel and oxidizers to propel the engines and maintain operation. Industrial Production: Low-temperature liquid storage tanks are used in industrial production for storing and supplying low-temperature liquids like liquid oxygen, liquid nitrogen, and liquid argon. These liquids serve as coolants, raw materials for gas separation, and reactants in chemical reactions. Medical Applications: Low-temperature liquid storage tanks are used in the medical field for storing and supplying liquid oxygen to provide oxygen therapy, oxygen inhalation, and applications in operating rooms. Laboratory Research: In scientific research and laboratories, low-temperature liquid storage tanks are used to supply low-temperature liquids as coolants and cryogenic media. They are employed in cooling laboratory equipment, material research, superconductivity, and low-temperature physics. In summary, low-temperature liquid storage tanks are extensively applied in rocketry, industrial production, and laboratory research for storing and supplying low-temperature liquids to meet the needs of various fields.

To extend the service life of low-temperature liquid storage tanks, the following measures can be taken:
Regular Inspections and Maintenance: Conduct regular visual inspections of the storage tank, including the shell, welds, valves, and fittings. Check for any anomalies such as cracks, corrosion, or deformation, and promptly repair or replace damaged parts.
Maintaining Insulation Layers: Insulation is crucial for the thermal preservation of low-temperature liquid storage tanks. Regularly inspect the integrity and insulating performance of the insulation layer, repair or replace any damaged insulation material to ensure the tank's insulating effectiveness.
Control temperature and pressure: The temperature and pressure of the low-temperature liquid storage tank should be maintained within a safe range. Avoid excessive or low temperatures and pressures that may damage the tank. Implement appropriate cooling or heating measures to ensure stable temperature and pressure of the liquid.
Corrosion Protection: The outer shell and internal structure of the tank should be protected against corrosion and oxidation. Regularly inspect and maintain the protective coating to ensure its integrity.
Avoid excessive pressure and overfilling: Prevent excessive internal pressure or underpressure in the tank, as well as overfilling of liquid. Excessive pressure and overfilling can lead to structural rupture or damage of the tank.
Regular Cleaning and Drainage: Regularly clean the interior of the tank to remove accumulated impurities and dirt. Regularly drain to prevent damage to the tank from the impurities and sediments in the liquid.
Safe Operation and Training: Ensure operators are equipped with knowledge and skills for safe handling of low-temperature liquid storage tanks. Enhance safety training to boost operators' safety awareness and emergency response capabilities.
Manage records and documents: Establish comprehensive management records and documents, including the usage status of storage tanks.

Liquid Argon Storage Tanks are used for storing and transporting liquid argon. Their application scope and characteristics are as follows:
Application Scope:
Industrial Applications: Liquid Argon Storage Tanks are widely used in industrial sectors such as metal processing, electronic manufacturing, semiconductor production, and more.
Application: Liquid argon tanks are used in the field for cryogenic storage of biological samples, cells, tissues, and vaccines.
Lab Applications: Liquid Argon Tanks are used in scientific research labs for low-temperature experiments, cryogenic storage, and sample processing, etc.
Features:
Low-temperature Performance: Liquid argon has a boiling point of -185.7°C, thus the liquid argon storage tank must have excellent low-temperature insulation properties to maintain the low-temperature state of the liquid argon.
High sealing property: Liquid argon storage tanks must have excellent sealing performance to prevent evaporation loss of liquid argon and the entry of external air.
Safety: Liquid argon is a flammable and explosive material; therefore, liquid argon tanks must be equipped with safety valves, leak detectors, and other safety devices to ensure safe operation.
High Capacity: The capacity of liquid argon storage tanks ranges from a few liters to several thousand liters, allowing for the selection of an appropriate capacity based on requirements.
Cautionary Notes:
Protective Gear: When operating liquid argon tanks, it is mandatory to wear appropriate protective gear, including gloves, protective clothing, and non-slip shoes, to safeguard against the low temperature of liquid argon and other hazards.
Ventilation Requirements: At
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 non-destructive testing, physical and chemical testing, welding testing, hydrostatic testing, and other testing facilities. We have over 600 types 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. The key products 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 innovation and excellence 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 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 provincial-level scientific and technological achievement appraisal, the technology level has reached an international standard in the field of deep cryogenic container manufacturing. Choose Zhongjie Special Equipment, and let's create brilliance together!