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How to prevent boiler overpressure during hydraulic test?

2020-08-24 09:48    page view:

Guide: The water pressure test is a major operation related to the safety of the boiler and must be carried out carefully. (1) The input status of the pressure gauge should be carefully checked before the hydraulic test. (2) The power supply of the steam exhaust to the empty and the accident water discharge valve is turned on, the switch is flexible, and the steam and water discharge pipe system is unblocked. (3) During the test, the chief engineer or his designated professional personnel should be in charge of the site, and a special person should control the boost speed, and no substitutions should be made midway.

  The water pressure test is a major operation related to the safety of the boiler and must be carried out carefully.

  (1) The input of the pressure gauge should be carefully checked before the hydraulic test.

  (2) Turn on the power to the empty steam and accident drain valve, the switch is flexible, and the steam and water drain pipe system is unblocked.

  (3) During the test, the chief engineer or his designated professional should be in charge of the site, and a special person should control the boost speed, and no substitutions should be made midway.

  (4) After the boiler is pressurized, close the water inlet regulating door and control the pressurization speed to not exceed 0.3MPa/min.

  (5) When the pressure is increased to 70% of the working pressure of the boiler, the pressure increase speed should be appropriately slowed down and safety measures should be taken to prevent overpressure.

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