The manhole in the vertical pressure vessel on the normal drawing is of Angle, inclined, not knowing what reason, how to decorate oneself. If be the "vertical" container of constant pressure, what type of people's hole is open on the head, in the next one, ask the expert to give directions, thank!
The vertical pressure vessel manhole arrangement is as follows: It is convenient to go in and out of the room and check for convenience. Small diameter vertical containers are set on top and large diameter vertical containers are allowed in the cylinder. When the container sets 2 or more manholes, it is set on top and barrel. When a horizontal container sets two holes, it is placed at the ends of the cylinder. When the liquid medium is in full, it is not recommended for the position of the manhole in the head or in the liquid. Vertical container is a container that is either vertical or vertical in the center line of the container. The vertical container, which is larger than 5, and which is larger than 10m, is called a tower container. A horizontal container is a container that has a horizontal or basic level of the main axis of the container. According to the different structure of the pedestal, the common horizontal container can be divided into two saddles, three saddles, and the seat type.
In general, the human aperture of the vertical container should still be opened on the barrel. If you have to set up a seal on the head because of the special needs, you usually have a top end. For small diameter containers, if no center is taken over, the manhole is usually in the center. You can't choose anywhere near the center when you can't be in the center. The manhole in the large diameter container is generally chosen to open on the edge of the seal head, mainly considering the proximity of the inside of the device and the convenience of the personnel in and out. Actually manhole is tilted (that is, whether with head surface vertical) I personally think that no special significance, the tilted manhole facilitate opening and welding, but not too convenient pass in and out of persons, should be each have advantages and disadvantages. If you design the manhole in the container for the service, you can simply use the normal pressure manhole. If it is an operation, it is necessary for personnel to enter (such as cleaning, replacement, etc.) to choose the normal pressure manhole of the fast open structure.
The tilt device is designed to be perpendicular to the head surface. You download: GB150 steel pressure vessel and HG/T 21514-2005 steel manhole and hand hole type and technical condition HG 21515-2005, the permanent pressure manhole cast (carbon steel, low alloy steel).
