SU614206A1 - Vertical cylindrical reservoir - Google Patents

Description

one

This invention relates to a reservoir construction, in particular, to structures of vertical cypinaric reservoirs.

Known vertical cylindrical tank, comprising a housing, krpiku and bottom.

The bottom is fixed to a ring of rigidity located along the perimeter of the wall of the reservoir From its inner side ij.

The disadvantage of such a tank is the difficulty of fastening the wall to the bottom.

The closest technical solution to this invention is a vertical tank comprising a body, a lid

2

and day with okrayka

The disadvantage of this technical solution is the unreliability of operation, due to the fact that, due to the uneven deformation from temperature and force effects, the edges of the edges of the edges of the ridges appear, which then spread to the inner part of the tank, thereby violating its tightness .

The phenomenon of cracking can be described as follows.

After filling the tank with the product under the action of internal pressure, the tank body expands, which causes annular tensile stresses in the bottom 5 around the circumference. As the heat of the incoming product inside the bottom heats up and expands, a significant part of the load is perceived by the protruding portion of the bottom of the tank having a much lower temperature.

In wintertime, when the protruding part of the bottom cools down sharply, the stresses in it in particular develop, which often leads to the appearance of radially directed cracks. Since there is a large concentration of stresses in the tip of a crack, the fracture freely spreads to the inside of the bottom during operation, which leads to a disruption in the working capacity of the reservoir.

The aim of the invention is to improve the reliability of the tank.

This goal is achieved by the fact that in a vertical cylindrical tank that includes a housing, a roof, and a bottom with an open edge, the edge is located on the outer side of the outlet. They are very deafed, and their deaf part has a curvilinear center ().

 Fig, 1 shows the proposed f) c zervuar, vertical section; on fit- 2 plan okrayki znishcha.

In the rounds 1, the edges of the bottom 2 of the bottom of the tank 3 are made of steps 4, having a smooth transition in the inner part.

The tank works as follows.

In the process of filling the tank under the action of the pressure of the product, the tank body 3 expands, which causes annular tension in the bottom 2 of the tank. The cuts made on the bottom edge cuts allow redistributing the stresses, namely, they relieve the stresses arising from the temperature difference in the outer areas of the bottom 1a, thereby significantly reducing the likelihood of cracking.

Unlike cracks, which appear without the intervention of people, they remove those. peraturian stresses on the protrusions of the Iumiiin edge, ntlrezy not imeggg areas with large kpntssntraypryn1P1YY, which removes the impact of the spread of destruction in the inner bottom region.

The proposed invention allows to increase the operation of the first reliability of the reservoir.

Claims (2)

Invention Formula A vertical cylindrical tank comprising a body, a cap and a bottom with a collar, characterized in that, in order to improve the reliability of the reservoir, the edge of the reservoir on the outside of the reservoir is solid with deaf cuts, and their deaf part has a curvilinear outline, Sources of information taken into account in the examination: 1, US Patent N ° 35O5769, class, E 04 H 7/02, 1970. 2. Safar and L. K. and Ivantsov O. M, Design and construction of steel tanks. Gostoptekhiztsat, 1961, p. 69