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Vacuum tank

A vacuum tank and vacuum heat insulation technology, which is applied in the direction of tank trucks, packaging, large containers, etc., can solve problems such as large pressure on the shell, air leakage in the vacuum heat insulation cavity, deformation of the vacuum tank, etc.

Pending Publication Date: 2021-05-14
SHANGHAI XINGYE MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the vacuum tank with traditional structure is used for small tonnage water storage, the inner shell can be suspended and connected to the outer shell through its top, while for large tonnage water storage, the strength of the suspension connection between the inner shell and the top of the outer shell is not enough to support the inner shell and the outer shell. weight of water
[0006] Although the above-mentioned problems can be solved by fixedly connecting the inner shell and the outer shell at the bottom of the tank, such problems have been brought about: when the temperature of one of the inner shell or the outer shell changes significantly, thermal expansion and contraction, expansion or contraction The inner shell (or outer shell) of the vacuum chamber will exert a large force on the outer shell with no significant change in temperature and size, and this force will cause the vacuum tank to deform, and this deformation will easily lead to air leakage in the vacuum insulation chamber and loss of heat preservation ability

Method used

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Experimental program
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Effect test

Embodiment 1

[0116] Figure 1 to Figure 6A specific embodiment of the vacuum tank of the present application is shown, the vacuum tank is a water tank for storing water, which includes some traditional vacuum tanks: an outer shell 1, an inner shell 2 arranged in the outer shell, forming The tank cavity 4 inside the inner shell, and the vacuum heat insulation cavity 3 formed between the outer shell and the inner shell. Both the outer shell 1 and the inner shell 2 are made of stainless steel.

[0117] If the inner shell 2 of the vacuum tank is suspended in the outer shell 1 as in the traditional solution, when the volume of the tank cavity is large and stores tens of tons or even hundreds of tons of water, the inner shell 2 is easy to fall and deform under the action of water gravity , and a large area of ​​close contact with the outer shell 1, so that the heat is quickly transferred between the inner shell and the outer shell, reducing the thermal insulation of the tank. Moreover, the fal...

Embodiment 2

[0148] Figure 7 to Figure 10It shows the second specific embodiment of the vacuum tank of the present application. The structure of the vacuum tank is similar to the structure of the vacuum tank in the first embodiment, the main difference is that: in this embodiment, the shell wall of the inner shell 2 and Deformation folds for absorbing / releasing deformation are not provided, but ring-shaped deformation folds surrounding the periphery of the inner shell 2 are integrally provided on the shell wall of the outer shell 1 . In order to illustrate the technical solution, the deformed folds on the shell 1 are now referred to as shell deformed folds 1a.

[0149] When the temperature of the outer shell 1 rises, the outer shell deformation folds 1a on the shell wall shrink to absorb the expansion deformation of the outer shell, thereby preventing the expansion stress of the outer shell from concentrating on the connection between the inner shell and the outer shell, causing deformati...

Embodiment 3

[0159] Figure 11 to Figure 14 It shows the third specific embodiment of the vacuum tank of the present application. The structure of the vacuum tank is similar to that of the vacuum tank in Embodiment 1 and Embodiment 2. The main difference is that not only the inner shell 2 is integrally arranged on the shell wall Annular deformation folds 2a surrounding the periphery of the tank chamber 4 are provided, and ring-shaped deformation folds 1a surrounding the periphery of the inner shell 1 are integrally provided on the shell wall of the outer shell 1 . That is, deformation folds are provided on both the shell wall of the inner shell 2 and the shell wall of the outer shell 1 .

[0160] The vacuum tank of this embodiment is very suitable for such a situation: both ends of the vacuum tank are fixed, and the heights of the inner shell and the outer shell are limited and fixed. For example, the two ends of the vacuum tank are fastened to the outer support frame.

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Abstract

The invention relates to a vacuum tank. The vacuum tank comprises an outer shell, an inner shell arranged in the outer shell, a tank cavity formed in the inner shell, and a vacuum heat insulation cavity formed between the outer shell and the inner shell. The outer shell and the inner shell are fixedly connected at the bottom and the top of the vacuum tank, and annular deformation wrinkles surrounding the periphery of the tank cavity are integrally arranged on the shell wall of the inner shell. The vacuum tank can contain liquid in a large-capacity mode and has quite high temperature change adaptability.

Description

technical field [0001] The present application relates to a tank, especially a vacuum tank. Background technique [0002] The vacuum tank is mainly composed of an outer shell, an inner shell, and a vacuum insulation cavity formed between the outer shell and the inner shell. It has excellent heat insulation performance and can store high-temperature or low-temperature liquids, especially water, for a long time. [0003] Generally speaking, the weak part of the insulation of the vacuum tank lies in its filling mouth. When the size of the filling opening is constant, the larger the volume of the vacuum tank, the slower the heat loss rate. Compared with a small-volume vacuum tank full of hot water (or cold water), a large-volume vacuum tank also full of hot water (or cold water) has obvious advantages in terms of heat preservation. [0004] However, the volume of traditional vacuum tanks is generally small, because the inner shell of traditional tanks is suspended and fixed in ...

Claims

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Application Information

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IPC IPC(8): B65D88/74B65D88/54B65D90/02
CPCB65D88/74B65D88/54B65D90/02
Inventor 高峰刘在祥陈艳凤蔡园丰王兵牛争艳
Owner SHANGHAI XINGYE MATERIALS TECH CO LTD
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