Where is the safe place for the safety valve to discharge?
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The drawings of the design institute indicate that the safety valve of the saturated steam boiler discharges to a safe place. Can any experienced people tell me where the safe place is? The boiler room is a fully underground boiler room, and the discharge to the ground affects safety. Is the basement safe?
More than 2.5m above the operating surface
It is a safety valve on the boiler. It discharges steam. It should be discharged to a safe place so as not to hurt people. Generally, it should be more than 2.5 meters above the platform or the ground and try not to face the pedestrian passage.
Generally, it should be more than 4 meters above the platform or the ground and try not to face pedestrian passages, other buildings, high and low voltage power lines, and densely populated areas, and the diagonal opening should face the sky.
Safety valves are generally above the operating surface! ! Prevent threats to operating personnel! !
The general principle is that when steam is discharged, it will not cause harm to people (not just the operator).
It cannot be discharged directly towards structures, equipment and pedestrian passages. It is usually empty discharge. Reduce the number of 90° elbows in the exhaust pipe as much as possible to avoid blowing and causing leakage of the elbows; and regular inspections and tests are required.
Just face the leader's office.……
The general principle is that there will be no casualties. Steam emissions are generally at a certain height above the operating platform and away from the crowd. The specific placement and how to discharge depends on each enterprise.
Sir, your furnace is underground. The safety valve must be emptied not only at least 2.5m away, but also in a direction where there are few people moving and with a protective barrier to avoid bumps and burns.
For the discharge of all underground boiler factory safety valves, a steam expansion vessel should be designed to quickly reduce the pressure of the discharged steam to normal pressure. In this way, the outlet direction can be determined based on the actual conditions on site, as long as it is not on the sidewalk or operating plane.
Everyone above mentioned that the safety valve steam discharge pipe should be connected to a safe place. Similarly, the safety valve condensate drain pipe should also be connected to a safe place to avoid harm to the operator and other personnel.
It should be more than 2.5 meters above the ground and cannot face the sidewalk or operating room. In short, it should be placed in an uninhabited place as much as possible to avoid safety accidents.
The location of the safety valve discharge port is generally determined based on the on-site conditions. The main reason is to avoid steam injuring people. Just grasp this principle.
It is best to add a regular sewage expansion tank. The above suggestions are all correct. In addition, it must be noted that the safety valve relief pipe needs to be equipped with a drain pipe.
The steam must be discharged above the ground and away from places where people pass by. It is best to set up isolation fences and warning signs to prevent people from entering and causing accidents.
The outlet of the steam safety valve is directly connected to the elbow where the air flows upward. In this case, my water pipe will be difficult to install. It will be directly planted at the root of the elbow and flange?
What a waste of a design institute, there is something wrong with this statement during design, they should be allowed to confirm on site!
What a waste of a design institute, there is a problem with this statement during the design, they should be allowed to be on site