MENU

Home
About Us
Products
News
Application
HR
Contact Us



语言版本

Blog

Some key points about autoclaves, as explained by a core‑preparation manufacturer.

Shenjia Hydraulics

Release Date:

2022-11-11

Core‑preparation manufacturers consider the high‑pressure reactor, also known as a pressure vessel, to be a commonly used reaction vessel in high‑pressure processes. A working pressure generally ranging from above 10 MPa to below 100 MPa is classified as high pressure, while pressures exceeding 100 MPa are designated as ultra‑high pressure.

　　 Core‑preparation manufacturers consider the high‑pressure reactor, also known as a pressure vessel, to be a commonly used reaction vessel in high‑pressure processes. A working pressure generally ranging from greater than 10 MPa to less than 100 MPa is classified as high pressure, while pressures exceeding 100 MPa are designated as ultra‑high pressure.

Core Preparation

　　Core‑preparation manufacturers note that autoclaves—particularly ultra‑high‑pressure autoclaves—typically require specific installation conditions, such as adequate ventilation and lighting. When in use, autoclaves should be operated only at designated locations. The use of ultra‑high‑pressure autoclaves within campus buildings is not recommended. Operators must undergo safety training and education. During operation, they should strictly adhere to the design‑specified process parameters, wear appropriate personal protective equipment, and master the relevant safety procedures. Over‑temperature and over‑pressure operations are strictly prohibited. After completing an experiment, the autoclave must be allowed to cool down before it can be opened. When measuring instruments on steam‑autoclaves are damaged, most failures occur on both sides of the glass surface; therefore, operators should avoid standing in these hazardous areas.

　　Core‑preparation manufacturers recommend that safety devices on the reactor vessel, such as pressure gauges and thermometers, be used within their specified operating ranges. During operation, the thermometer should be inserted accurately into the reaction solution, and the pressure gauge should be calibrated regularly. Safety valves and pressure gauges must undergo periodic calibration. Oxygen pressure gauges should be kept separate from other gas pressure gauges to avoid confusion. Ensure that the interior of the autoclave and its gaskets remain clean. For autoclaves containing flammable, toxic, or asphyxiating media, special measures—such as purging, neutralization, and thorough cleaning—must be implemented after use to guarantee safety. Before each use, inspect the equipment’s condition; if any abnormalities are detected, such as thread wear, immediately cease operation and arrange for prompt repair or replacement with new equipment.

　　Core‑preparation manufacturers consider autoclaves with a working pressure exceeding 0.1 MPa and a volume greater than 30 L to be subject to special‑equipment regulations. Such equipment must be registered and undergo periodic inspections, and operators are required to hold the appropriate certification. Autoclaves shall be installed in explosion‑proof high‑pressure operating rooms. When multiple autoclaves are installed, they must be arranged separately, with a structurally sound wall separating each pair. Each operating room must have an exit that leads directly outdoors or to a passageway. Autoclaves must be reliably grounded.

　　Core‑preparation manufacturers recommend that, when installing the kettle lid, a gasket should be placed first, after which the lid is carefully positioned over the vessel body and pressed into its designated location. A stainless‑steel spiral wound gasket is installed between the vessel body and the lid, employing surface‑to‑surface sealing. Tightening the main bolts presses the two components together, achieving a seal. Particular attention must be paid to the sealing surfaces. When tightening the main bolts, the specified torque must not be exceeded to avoid crushing or prematurely degrading the sealing surfaces. If the sealing surfaces are damaged, rework and repair are required to restore proper sealing performance. During bolt tightening, proceed in a diagonal, symmetrical sequence over several passes, applying even force; the lid must remain level and free from lateral tilt to ensure an effective seal.