SU808489A1 - Heating section - Google Patents

Description

one

This invention relates to proiz. the development of building products and constructions, namely, devices for the heat treatment of concrete and reinforced concrete products and structures.

A device for heat treatment of concrete and reinforced concrete products is known, comprising a form with a sealed jacket filled with a heating liquid medium, a liquid heating unit and a pressure compensator, made in the form of a sealed container with pressure reducing valves 1.

The closest to the proposed technical essence and the achieved result is thermal; a compartment containing a hermetic capacitance, heaters in the layer of light boiling liquid, made in the form of two-phase thermosyphons and vertical partitions with apertures 2,

A disadvantage of the known devices is unevenness and insufficient heating efficiency.

The purpose of the invention is to increase equality and intensification - warming up.

This goal is achieved by the fact that the thermal compartment of the device for

heat treatment of predominantly volumetric elements containing a hermetic container and heaters and helical partitions placed in a layer of light boiling liquid are provided with a removable horizontal screen placed above the partitions with a gap from the side walls of the tank and partitions and a connecting pipe

0 vacuum pump mounted at the top of the tank.

FIG. 1 shows a thermal compartment, a cross section; in fig. 2 - the same,. lengthwise cut.

five

The heat compartment contains a tank 1, welded from five metal shields, vertical partitions forming channels 3, located in the bottom and filled with water, heated 4, and the channels are closed with a removable horizontal metal screen 5 installed with a gap b from the side walls of the tank. In the upper part of the vessel, on the end wall, which is not participating in the process of molding and heat treatment, a pipe 7 is installed for evacuating the air from the vacuum box. catfish (not shown).

The device operates as follows 0.

The capacity tank 1, containing vertical partitions 2 and channels 3 filled with water, is installed in the molding machine, includes a heater 4 that heats and evaporates water, the generated steam washes away the removable horizontal metal screen 5 and through the gaps b enters the core cavity, condenses on its walls gravity flows through the gaps b into the channels 3.

The proposed device makes it possible to create an intense heat and mass transfer in the evaporation and condensation zone, which proceeds at almost equal temperatures, which makes it possible to evenly heat the surfaces of the core and virtually eliminate temperature differences in height, automatically adjust the heat treatment process. supplied to the heat source and to intensify the heating.

Claims (2)

1. USSR author's certificate No. 336321, cl. From 04 to 41/30, 1972. 2. USSR author's certificate in application number 2591415 / 29-33, cl. From 04/41/30 ,, 03/20/78. 1 dpp S3i ai R 0 0 2