SU1539065A1 - Autoclave for hydraulic thermal treatment of building materials - Google Patents

Abstract

This invention relates to the building materials industry. The aim of the invention is to increase the service life of the autoclave. In an autoclave for hydrothermal processing of building products, there is a housing with covers supplying and discharging pipes on the flanges. The deaeration chamber, located inside the autoclave, is formed by a cylindrical shell, an autoclave body and end walls. In the upper part of the cylindrical shell is a grid-deturbulizer. A steam distribution manifold is located in the lower part of the deaeration chamber. Here are two pipes for separate condensate bypass from the working space of the autoclave and the deaeration chamber. 2 Il.

Description

This invention relates to the building materials industry.

The purpose of the invention is to increase the service life of the autoclave.

Fig, 1 shows an autoclave, a longitudinal section; in fig. 2 is a section A-A in FIG. one.

The autoclave consists of a housing 1, a lid 2, a flange 3, a supply pipe 4, a flange 5, a drain pipe 6 for draining condensate from the deaeration chamber 7, a flange 8, a drain pipe 9 for air release and draining the condensate from the working space 10 of the autoclave , steam distribution manifold 11 from perforated pipe.

The deaeration chamber 7 is formed by a cylindrical shell 12 with a mesh deturbulizer 13 in the upper part and end walls 14. The discharge pipes b and 9 are equipped with valves 15 and 16. In addition, the autoclave

equipped with any known device that protects the housing and the shell from corrosion (not shown).

The cylindrical shell can be made collapsible from thin-sheet material, non-corrosive, lightweight, vapor-proof, and can withstand elevated temperatures and pressures or film material tensioned on the frame.

The autoclave works as follows.

In an open autoclave load products. Close the lid 2 autoclave. From the inlet pipe 4, through the steam distribution manifold 11, with the valves 15 and 16 open, the outlets of the pipelines 6 and 9 supply steam to the autoclave. The last exit from both ends of the steam distribution is the PERMANENT collector 11 (or through the holes in the perforated steam dispenser /

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tube) and the apolysis chamber 7, rising along the walls of the autoclave from the bottom up to the deturbing grid 13, through which it evenly enters the working space 10 of the autoclave.

With the passage of steam through the deaeration chamber 7, the walls of the body 1 of the autoclave are heated uniformly, therefore, no bending loads occur on the body. Due to the low rate of steam release to the working space 10 of the autoclave through the deturbulizer grid 13 and the difference in the specific gravities of steam and air, air is quickly expelled from the autoclave with a small amount of steam. The condensate formed in the deaeration chamber 7 is removed through line 6 and valve 15, and air is forced out of the working space 10 of the autoclave through line 9 and valve 16.

The advantage of the proposed autoclave is that the presence of a de-aeration chamber of an annular type with a steam distribution manifold in the lower part and a deturbulator grid in the upper part of the autoclave provides steam from the bottom of the autoclave along its walls upwards, thus avoiding the temperature difference between the top and the bottom of the autoclave and the resulting significant bending

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loads on the body, and eventually increase the service life of the autoclave. The supply of steam to the working space of the autoclave from the top through the deturbulator mesh ensures that air is removed from the autoclave before the pressure in it rises in 5–20 min, which reduces steam consumption.

Claims (1)

Invention Formula An autoclave for hydrothermal processing of building products, comprising a housing with covers, flanges for inlet and outlet pipelines, a steam distribution manifold, a deaeration chamber with a detrusion mesh located inside the autoclave, and a nozzle for draining condensate from the working space, characterized in that In order to increase the service life of the autoclave, the de-aeration chamber is formed by a cylindrical shell, an autoclave body and end walls, the deturbulizer grid being located in the upper part The parts of the cylindrical shell and the steam distribution manifold are located in the lower part of the deaeration chamber, while the connections for the separate removal of condensate from the working space of the autoclave and the deaeration chamber are installed in the lower part of the autoclave. 1 2