Welding between mechanical equipment components of pressure vessels

Time2024-04-12

Due to the characteristics of pressure vessels and the chemical process properties of the internal media, it is often necessary to set up safety devices and measurement and control instruments on the vessel to monitor the parameters of the working medium, in order to ensure the safe use of the pressure vessel and the normal progress of the process.

Due to the usage characteristics of pressure vessels and the chemical process characteristics of the internal media, it is often necessary to set up some safety devices and measurement and control instruments on the vessel to monitor the parameters of the working medium, ensuring the safe use of the pressure vessel and the normal progress of the process.

The main safety accessories for pressure vessels include safety valves, rupture disc devices, emergency shut-off valves, safety interlock devices, pressure gauges, level gauges, and temperature measuring instruments.

The six major components (cylinder, head, sealing device, opening connection pipe, support, and safety accessories) constitute the shell of a pressure vessel. For storage containers, this shell is the container itself; for containers used in chemical reactions, heat transfer, separation, and other process operations, it is necessary to install the internal components required by the process within the shell to form a complete product.

Welding between mechanical components of pressure vessels.

The six major components of the pressure vessel shell have been introduced above, and the connections between these components mostly require welding, making quality control of welding an extremely important part of the entire container quality system. Although welding quality control also involves many welding process issues, the main tasks in the design phase are the design of the welding structure and determining the non-destructive testing methods, proportions, and requirements.

Welding structure design involves the form of joints (such as butt, lap, corner joints), the form of joint grooves, geometric dimensions, etc. Due to the specificity of pressure vessels, it can be said that the requirements for welding quality are the highest among all welding equipment. Therefore, pressure vessel design engineers must understand the characteristics of welding structure design in the vessel and the basic requirements for inspecting welding quality.

Keyword： Welding between mechanical equipment components of pressure vessels

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