LH₂ High Vacuum Storage Tank

• Function: Storage Cryogenic liquid
• Type: Vertical or Horizontal
• Storage Medium: Liquid Hydrogen

1. The design, manufacturing and inspection of vacuum storage tank mainly according to T/CATSI 0506-2021 "Special Technical Requirements for Fixed Vacuum Insulated Liquid Hydrogen Pressure Vessels", and can also follow international standards such as ASME.
2. The inner vessel is used to store liquid hydrogen, and the shell material is austenitic stainless steel, which has good low temperature resistance. The shell plays a protective role and provides reliable protection for the interlayer insulation material and vacuum degree.
3. The interlayer adopts high vacuum multi-layer insulation, and the interlayer space is equipped with multi-layer alternately combined spacer materials and reflective screens, which greatly reduces heat intrusion, reduces the evaporation rate of liquid hydrogen, and ensures long-term storage.
4. The storage tank is equipped with stainless steel cryogenic globe valve, combined vacuum valve (including vacuum gauge to measure the vacuum degree of the insulation layer at any time), safety valve, relief device, pressure gauge, liquid level gauge and other valve instruments;
5. The inner vessel is equipped with two sets of independent over-pressure relief devices to effectively ensure the safety of the tank. In addition, the safety explosion-proof devices installed on the outer vessel further ensure the safety and reliability of the entire equipment.
6. For the inner vessel of the storage tank, 100% Radiographic Testing (RT) is first performed on Category A and Category B welded joints. This is followed by 100% Penetrant Testing (PT) on all welded joints. After ensuring that the non-destructive testing results are qualified, a pneumatic test is conducted on the inner vessel. Finally, each weld and joint is subjected to a leak test using a helium mass spectrometer leak detector.
7. The finished paint film on the outer surface of the storage tank is dense, firm and reliable, and the dry film thickness of the paint is greater than 200 µm.
8. The tank needs to be replaced with nitrogen before leaving the factory. Fill the interior of the liquid container with 0.03~ 0.05Mpa pressure nitrogen gas for protection.
9. The liquid hydrogen high vacuum storage tank is easy to install and has low maintenance costs. It is mainly used in the aerospace field, hydrogen refueling stations, hydrogen fuel cell industry, etc.

Application Scope of Stationary Liquid Hydrogen Storage Tank

Core Storage for LH2 Refueling Stations

Providing high-efficiency refueling services for fuel cell vehicles (heavy-duty trucks, passenger vehicles) to support urban transportation and logistics hydrogenization.

Hydrogen Pipeline Network Peak Shaving

Large-scale storage of renewable energy (wind/solar)-produced hydrogen and cross-regional peak regulation.

Electronics & Semiconductor Manufacturing

Ultra-high purity hydrogen (≥99.999%) for wafer processing and chemical vapor deposition (CVD)

Petroleum & Chemical Industry

Hydrogen source reserves for hydrocracking units in refineries (such as diesel hydrorefining and residue oil hydroprocessing).

Rocket Fuel Storage

Liquid hydrogen storage at space launch centers.

Military Equipment Hydrogen Supply

Modular hydrogen supply systems for military equipment including UAVs and submarines.

Green Hydrogen Energy Storage Systems

Long-term energy storage for hydrogen production from renewable power (cross-seasonal peak regulation).

Liquid Ammonia-Hydrogen Conversion Hub

Liquid ammonia transportation to end-user sites→Catalytic cracking for hydrogen production→Interim storage in liquid hydrogen tanks→Power generation via fuel cells.

Suzhou Doer Gas & Chemical Equipment Co.,Ltd. is a high-tech enterprise, whose businesscovers R&D, design, manufacture, installation, complete engineering and industrial servicesof cryogenic equipment. Doer's total factoryarea is 135,000㎡ and the company has morethan 600 employees, including over 90 designand research & development professionals. Dedicated to becoming a leader in the field ofcryogenic liquid storage and transportation, DOER strives to provide clients with one-stopprofessional services.

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