Hydrochloric Acid Tank

Hydrochloric acid storage tanks are special containers for highly corrosive liquids such as hydrochloric acid and sulfuric acid. They are mainly made of plastic or fiberglass. Plastic storage tanks are mostly made of polypropylene (PP) and are formed in one step through the rotational molding process. They are suitable for short-term storage (1-2 years) and small-sized packaging. Fiberglass storage tanks have been verified for stability through resin selection and hanging plate tests. They have corrosion resistance of more than 30 years and are the mainstream choice in chemical production.
This storage tank has high strength and corrosion resistance and can withstand high concentrations of acid, alkali and various solvents. Its lightweight and high strength characteristics (density is 1/4-1/5 of carbon steel) and flexible customized design (high temperature resistance, complex structure one-step molding) enable it to gradually replace metal materials [1]. Use must strictly follow the design concentration range. If it exceeds the limit, it needs to be re-customized. The maintenance cycle is divided into medium repair (60-120 days to check for leaks) and major repair (12 months of integrity inspection and anti-corrosion treatment). Repairs are mostly made using non-welding technology of polymer composite materials.

Structural Features

Hydrochloric acid tank

Tank Shape: Primarily vertical cylindrical, with a flat bottom (suitable for indoor use) or conical bottom (facilitating discharge and cleaning). Large tanks require annular reinforcing ribs to enhance wind and negative pressure resistance.
Interface Configuration: Standard configuration includes inlet, outlet, overflow, drain, and manhole. Some tanks may require additional level gauge, pressure gauge, and ventilation ports (hydrochloric acid is volatile; pressure must be balanced to prevent negative pressure from collapsing the tank).
Anti-Volatilization Design: When storing concentrated hydrochloric acid, an acid mist absorption device is required. The volatilized HCl gas is directed to an absorption tower via ventilation pipes to prevent environmental pollution.
Installation Requirements: Must be placed on acid-resistant flooring, surrounded by a containment dike (to prevent leakage). Vertical tanks require bottom supports for secure installation.

Application Areas

Primarily used in the chemical, electroplating, and metallurgical industries, these tank farms require anti-seepage cofferdams, rain shelters, and emergency pools. Storage capacity must be kept below 80% to ensure safety. Hot work operations require gas detection and isolation measures to prevent explosions caused by hydrogen accumulation. Product specifications range from 0.5 to 200 cubic meters, including vertical, horizontal, and transport tank configurations. These tanks comply with multiple national standards for corrosion protection equipment.

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