What is the primary purpose of an accumulation test on a boiler?

The primary purpose of an accumulation test on a boiler is to assess the relieving capacity of a safety valve. This test is crucial in verifying that the safety valve will operate correctly under conditions of overpressure. During the test, the boiler is heated to a specific pressure, and the safety valve is allowed to lift in order to release steam. The amount of steam that can be discharged over a defined period is measured, ensuring that the valve can relieve pressure effectively to prevent dangerous overpressure situations.

This test is fundamental in maintaining safety standards within boiler operations and is often required by regulations. Understanding the relieving capacity is vital as it ensures that the safety valve can handle the maximum pressure that the boiler may produce in abnormal conditions, thus preventing potential accidents or malfunctions.