Elliptical Head

Elliptical Head is a kind of boiler part in the pressure vessel. The elliptical head adopts medium frequency induction heating to heat the pipe locally while carrying on mechanical transmission and bending the pipe. The elliptical head can reach 120KW with the highest power, and can heat pipes of various sizes and specifications.

 

Elliptical Head is a kind of boiler part in the pressure vessel. The elliptical head adopts medium frequency induction heating to heat the pipe locally while carrying on mechanical transmission and bending the pipe. The elliptical head can reach 120KW with the highest power, and can heat pipes of various sizes and specifications. Easy to operate and maintain. The head applies external force to the metal blank, causing it to undergo plastic deformation, change the size, shape and improve the performance of the forming process for the manufacture of mechanical parts, workpieces, tools or blanks.

 

The Elliptical Head is a head consisting of half an elliptical shell and a straight side (cylinder stub). Because the radius of curvature of the elliptic curve changes continuously, only bovine film stress is produced in the overall part of the elliptic shell after compression, and the discontinuous stress is small at the joint of the elliptic shell and the straight edge because of the common tangent. The edge stress at the joint of the elliptic shell and the straight edge of the standard elliptic head whose ratio of the long and short axes is equal to 2 is small and can not be considered.

 

 

Elliptical Head characteristic

It is composed of half an elliptic sphere and a cylindrical straight edge segment, which absorbs the advantages of good force on the hemispherical head and shallow dish head. Because the curvature of the ellipse is smooth and continuous, the stress distribution in the head is uniform. The bt of Elliptical Head depends on the ratio of the long and short axes of the elliptical head, that is, the inner diameter of the head I): twice as much as the L kos (IJ,I2h) of the head. The smaller the ratio, the larger the head will be, with uniform load and thin wall, but it is difficult to process and manufacture. The higher the ratio, the smaller the head, the easier to manufacture, but the stress state is poor, the wall thickness increases. Therefore, the general value of D,I2h is not greater than? When I),}2 is 1, 2, it is the standard oval head, which is a commonly used head in pressure vessels.

Elliptical Head Its head is elliptical, so it can also be called elliptical head, it is widely used in a variety of low voltage vessels, the effect is particularly large. The head is the bearing end cap on the pressure vessel, which is the key pressure bearing component on the pressure vessel, and mainly has the effect of sealing. First, the left and right bottom of the canister pressure vessel is made, and the second is that the pipeline stops and does not need to be widened further, so a head is used to seal the pipeline in the form of electric welding.

Elliptical Head execution standards are GB/T12459-2005, GB/T13401-2005, DL/T695-1999, D-GD87-0607, etc.

Elliptical Head is one of the boiler parts in pressure vessels. The elliptical head is currently used in a variety of container equipment, such as storage tanks, heat exchangers, towers, reactors, boilers, and separation equipment.

 

 

The Elliptical Head is an indispensable part in all kinds of pressure vessel equipment used in many industries, from petrochemical and atomic energy to food and pharmaceutical industries. In fact, the part is the end cap on the pressure vessel, and it is a main pressure part of the pressure vessel, so its quality is directly related to the long-term safe and reliable operation of the pressure vessel.

In practical applications, as users, we need to consider some details. First of all, the outer circumference of the Elliptical Head should be measured according to the requirements, and then marked on the cylinder and head, and then positioned and welded according to the sequence shown. After position welding is complete, weld. In this process, attention should be paid to surface protection measures.

In addition, after the Elliptical Head and cylinder are welded, it is also necessary to clean up the weld slag, splash, contaminants, etc. existing in and around the weld, and carry out PT inspection and surface pickling. Remember, do not cause bumps and scratches on the surface of the head. At the time of storage, it shall not be stored in the open air, rainproof. The chloride ion content of water used for hydraulic test shall not be greater than 25mg/L, and it shall be blown dry in time after the test.

In addition, the working environment of the Elliptical Head should be considered. Because the carbon steel Elliptical Head will crack in the environment of nitrate, ammonia, alkaline sodium, etc., the user should explain the removal of residual stress when ordering. And in the design also need to choose the right material.

 

 

What is the difference between an Elliptical Head and a Dished Head

1. Different shapes: Elliptical Head, also known as elliptical head, is composed of half an elliptical sphere and a cylindrical straight side segment, which absorbs the advantages of good force of hemispherical head and shallow depth of dished head. Because the curvature of the ellipse is smooth and continuous, the stress distribution in the head is uniform.

Dished Head, also known as a band edge spherical Head, also known as Dished Head. It consists of a sphere, a straight edge of a cylinder of a certain height, and a transition part connecting the two parts with a radius of curvature smaller than the radius of the sphere.

2, the force is different: the Elliptical Head is better than the dish-shaped head on the force, but the elliptical head of the same diameter is deeper than the dish-shaped head, the manufacturing difficulty is slightly larger than the dish-shaped head, the consumption of more materials, the wood is higher, and the difference in volume is still small.
That's what the Elliptical Head is all about. We welcome you to learn more about Elliptical Head and further understand it. We also welcome you to buy this product, its quality is guaranteed, the Elliptical Head stress distribution is more uniform, is able to help you complete the work more quickly, an effective tool.