Pneumatic valve action pressure boiler safety and installation considerations

as an important security boiler accessories, pneumatic valve action of high and low pressure boiler safety related to the intensity of the boiler design. Once the improper selection pressure, will inevitably leave hidden trouble, so we should pay more attention when installation. Below small make up to introduce the boiler safety pneumatic valve installation considerations and boiler safety pressure pneumatic valve movement.
the boiler safety pneumatic valve installation note
( L evaporation capacity is greater than the rating. T/h boiler, pneumatic valve installed at least two security: less than or equal to the rated evaporation. T/h boiler, at least with a pneumatic valve safety. Split the economizer exit, steam superheater outlet pneumatic valve must be installed security.
( Security pneumatic valve should be installed vertically in the drum, the header of a higher position. In the security between pneumatic valve and the drum or header, shall not be equipped with access steam outlet pipe and the pneumatic valve.
( Pneumatic valve lever type safety to prevent heavy hammer to mobile devices and on its own limitation lever deviant guide frame, spring loaded safety pneumatic valve to have raise a hand and prevent twisted casually adjusting screw of the device.
( For the steam pressure is less than or equal to the rated. MPa boiler, safety pneumatic valve throat diameter should not less than the mm: for steam pressure is greater than the rating. MPa boiler, safety pneumatic valve throat diameter should not less than the mm.
( Safety of pneumatic valve and connecting pipe of boiler, its cross-sectional area should not be less than the safety import cross-sectional area of pneumatic valve. If several security pneumatic valve installed on a common attached directly to the drum on the spool, spool of cross-sectional area shall not be less than all safe access pneumatic valve exhaust area. Times.
( Safety exhaust pipe of pneumatic valve should be installed commonly exhaust steam pipe should be road safety, and have enough area, ensure the exhaust steam flow. Security at the bottom of the exhaust pipe pneumatic valve shall be provided with a safety place to drain pipe, on the exhaust pipe and drain pipe, are not allowed to furnish the pneumatic valve.
pneumatic valve action pressure boiler safety is how much
'steam boiler safety technology supervision regulation article of the rules on the steam boiler safety pneumatic valve setting pressure: drum ( Pot shell and the safety of the superheater pneumatic valve setting pressure should be adjusted in accordance with the table below and check. Pneumatic valve, boiler must have a safety in the table according to the low pressure adjusting setting. For boiler superheater, according to the low pressure to adjust security pneumatic valve, must be for security on the superheater pneumatic valve, pneumatic valve to ensure the safety of the superheater to open it. Economizer, reheater, safety of once-through boiler start-up separator, pneumatic valve setting pressure for installing location of work pressure. Times.
the hot water boiler safety technology supervision regulation article of the rules on the pneumatic valve setting pressure hot water boiler safety:. Times the working pressure but not less than + work pressure. 吗? MPa。 Times the working pressure but not less than + work pressure. 吗? MPa。 Note: (1) the boiler must have a safety pneumatic valve according to the ShiQi pressure low in the table setting. (2) in this case, the working pressure is with security work pressure pneumatic valve directly connected components.