High pressure digestion tank

Abstract

A high-pressure digestion tank belongs to the technical field of pressure containers. The high-pressure digestion tank comprises an outer tank, an inner tank arranged inside the outer tank, an inner tank cover and an outer tank cover, and is characterized in that the outer tank cover is tightly screwed onto an opening of the outer tank and tightly presses the inner tank cover onto an opening of the inner tank, the inner tank cover comprises an inner tank cover top wall and an inner tank cover skirt wall, and the inner tank cover skirt wall droops from the bottom of the inner tank cover top wall, so that a sensor insert tube is screwed in through threads. The high-pressure digestion tank provided by the invention not only can realize relatively high work pressure, but also is small in size and easy to machine.

Description

technical field [0001] The invention relates to a high-pressure digestion tank, in particular to a high-pressure digestion tank capable of automatically releasing pressure under high pressure. Background technique [0002] The structural design of the digestion tanks on the market is mostly achieved by combining inner and outer tanks. The inner tank is made of fluorine plastic for acid and alkali resistance, and the outer tank is made of high-strength plastic for horizontal support, but the vertical support is mostly provided in the form of a tank frame. The bulky operation and large volume are not conducive to high-throughput digestion; the combination of inner and outer tanks has a sealing aspect, and the inner skirt seal of the upper cover can reach 500 psi, but it cannot automatically release the pressure safely. Also have a kind of mode that adopts plug to make inner cover, shortcoming is just pressure release when pressure is less. Contents of the invention [0003]...

AI Technical Summary

Problems solved by technology

[0002] The structural design of the digestion tanks on the market is mostly achieved by combining inner and outer tanks. The inner tank is made of fluorine plastic for acid and alkali resistance, and the outer tank is made of high-strength plastic for horizontal support, but the vertical support is mostly provided in the form of a tank frame. The operation is heavy and the volume is large, which is not conducive to high-throughput digestion; the combination of inner and outer tanks has a sealing aspect, and the inner skirt seal of the upper cover can reach 500 psi, but it cannot automatically release the pressure safely

There is also a way to use the plug as the inner cover, the disadvantage is that the pressure will be released when the pressure is small

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