In high-end sectors such as aerospace propulsion, frontier scientific research, semiconductor manufacturing, and advanced medical imaging, liquid helium serves as an indispensable core medium for ensuring the stable operation of superconducting systems and supporting precision processes. However, liquid helium storage requires extreme cryogenic conditions—specifically -269°C (4.2 K), approaching absolute zero. Conventional storage tanks often fall short in simultaneously guaranteeing both precise temperature control and sealing reliability, frequently leading to issues such as medium evaporation and system operational instability. Addressing this industry-wide technical bottleneck, Tianmiao Chemical Machinery—drawing upon a decade of experience in cryogenic tank R&D—has introduced an ultra-large liquid helium storage tank measuring 4.5 meters in diameter and 10 meters in length. Custom-engineered for the long-term, stable storage of high-purity liquid helium, this tank provides a low-loss, high-reliability cryogenic storage solution for cutting-edge application scenarios.
Core Specifications and Cryogenic Structural Design
This liquid helium storage tank strictly follows GB150 and ASME standards in design and production. First, it centers on advanced cryogenic insulation and high-purity medium compatibility. Besides, it adopts double-layer vacuum insulation plus multi-layer thermal shielding to block external heat efficiently. Moreover, real tests prove its heat loss rate hits 0.03 W/L, keeping industry-leading performance. It maintains liquid helium purity above 99.9999% steadily for long-term storage. Meanwhile, we precisely control its working pressure at 0.1–0.5 MPa slight positive pressure. This setup guarantees safe operation, cuts medium fluctuation risks, and prevents impurities from entering the tank effectively.
Large-Capacity Specifications Meet Scaled Helium Demand
Our new ultra-large liquid helium storage tank features a 4.5-meter diameter and 10-meter length, making it a high-capacity domestic cryogenic device. Firstly, it fully meets massive helium demands for aerospace bases, large labs and semiconductor factories. Secondly, its large volume cuts refilling frequency and lowers daily operation and maintenance workload greatly. Moreover, we optimize both lightweight design and structural strength for the tank. Meanwhile, it keeps huge storage capacity while supporting easy on-site hoisting and pipeline connection. It fits new construction projects perfectly, and also adapts flexibly to the upgrading and renovation of existing system scenarios.
Materials for Extreme Conditions and Comprehensive Quality Control for Liquid Helium Storage Tanks
To meet strict material demands at -269°C, Tianmiao makes tank inner vessels from ultra-low-temperature austenitic stainless steel. First, we adopt dedicated cryogenic welding materials and processes to keep great toughness and structural stability, and avoid low-temperature brittle fracture fundamentally. Besides, we run strict raw material rechecks, covering chemical analysis, mechanical tests and cryogenic impact checks. Moreover, we conduct full radiographic detection on key welds and apply overall stress-relief heat treatment. Meanwhile, we scan the whole tank with helium leak detectors to ensure zero leakage. We build a full-process quality traceability system from raw materials to finished products.
Systemic Technological Breakthroughs in Liquid Helium Storage Tanks Address Key Industry Challenges
To tackle the four core challenges associated with liquid helium—thermal insulation, purity preservation, pressure maintenance, and safety assurance—Tianmiao’s R&D team has undertaken a systemic technological initiative focusing on three key dimensions: structural design, sealing mechanisms, and monitoring systems. This comprehensive approach effectively resolves the critical pain points facing the industry.
In thermal insulation, the liquid helium storage tank adopts a high-vacuum multi-layer composite structure. Paired with high-efficiency adsorbents and gas barrier layers, it cuts ambient heat ingress, lowers liquid helium natural evaporation and reduces medium loss. For sealing reliability, professional ultra-low-temperature sealing parts maintain stable elasticity in cryogenic environments. They resist hardening and long-term leakage to secure steady equipment operation. In intelligent monitoring, it features a real-time data acquisition system to track temperature, pressure, vacuum and other key parameters. It supports remote diagnosis, data traceability and anomaly alarms, enabling reliable unattended running.
Liquid Helium Storage Tanks: Diverse Applications and Customer Value
Currently, Tianmiao’s liquid helium storage tanks see mature use across multiple fields. First, they serve aerospace, scientific research, semiconductors and high-end medical equipment, winning wide recognition from top institutions. Furthermore, in aerospace, the tanks support rocket propellant storage and back deep-space exploration steadily. Moreover, for scientific research, they deliver stable ultra-low temperature environments for superconducting facilities and secure reliable experimental data. Besides, they stabilize high-purity liquid helium supply in semiconductor production and avoid temperature impacts on wafer yield. Meanwhile, they guarantee helium supply for MRI devices and ensure long-term stable operation of medical imaging systems.
Customization Services and Full-Lifecycle Technical Support for Liquid Helium Storage Tanks
Tianmiao Chemical Machinery holds the Class A2 Special Equipment Manufacturing License, and meanwhile boasts mature R&D and delivery strength for ultra-low temperature equipment. Besides, we deliver full customized lifecycle services for liquid helium storage tanks, covering design, material selection, manufacturing, installation guidance and after-sales maintenance. Moreover, we tailor storage solutions to match your demands on capacity, pressure, temperature and interface parameters. In addition, our professional after-sales team supports remote commissioning and on-site maintenance, fitting new project needs and existing system upgrades. Feel free to contact our engineering team for technical consultation or site visits; we provide integrated, reliable ultra-low temperature storage solutions.