SU1442795A1 - Shaft air heating installation - Google Patents

Abstract

The invention makes it possible to increase the efficiency of the installation by controlling the heating of the air. Around the circumference around opening 1 in the ceiling 2 of the shaft 3 of the shaft there are vertical groups of heaters (K) 4, the space under which is blocked by the umbrella 5. The shell 7 is tightly fixed to the lower K with a gap relative to the overlap. channel 9 is equipped with an annular casing 6, tightly fastened with ends with overlapping 2 and umbrella 5 and provided in the side surface at the level of the shell 7 with an inlet opening. In the channel 9, in the horizontal plane, the guide disk 8 is mounted with the possibility of vertical movement. By moving the disk 8 in height relative to the opening, the air load K is regulated, the ratio of the flow rates of the mixed air flows and the temperature of the air entering the shaft shaft. 6 Il. S

Description

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The invention relates to the field of heat exchange technology and can be used to heat mines.

The purpose of the invention is to increase work efficiency by controlling the heating of the air.

FIG. I shows the heater unit, a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 is a diagram of the movement of air only through the heaters; in fig. 5 is a diagram of the movement of air; mine heaters; in fig. b - scheme of movement of air through the heaters and their mine.

The mine heater installation contains vertical groups of heaters 4 located circumferentially around opening 1 in the ceiling 2 of the shaft 3 of the mine, the space above which is covered by an umbrella 5. In addition, the installation contains an annular casing 6, a shell 7 and a guide disk 8, and the shell 7 is located the gap relative to the overlap 2 under the heaters 4 and tightly fastened to the bottom of them. The casing 6 is installed with the formation of an annular channel 9 outside the heaters 4, is tightly fastened with ends overlapping 2 and an umbrella 5 and provided in the side surface at the level of the shell 7 with an inlet 10 with a branch pipe 11, and the guide disk 8 is installed in the horizontal plane in the said channel 9 with vertical movement. Inside the space between the heaters, an air duct 12 is installed with an adjusting movable pipe 13 fitted with an actuator 14 at its mouth. The shell 7 is installed on the ceiling 2 through the supports 15. The disk 8 is equipped with an actuator 16.

The installation works as follows.

By means of an actuator 14, the pipe 13 is set to a height that allows air to pass through the heaters 4 with the prescribed velocity distribution. With the help of the actuator 16, the disk 8 is set to a position corresponding to either the passage of all air through the heaters 4 into the opening 1 of the barrel, 3, or the passage of air to bypass the heaters 4 directly into the opening 1, or to the movement of air along both specified paths with their displacement at the bottom of the casing 6 when entering the shaft 3 mines. Thus, at the lower position of the disk 8 (Fig. 4), the air moves (indicated by arrows) along the path of the impeller — nozzle 11 — inlet 10 — annular channel 9 —

Heaters 4 - telescopic duct 12 - opening 1 in the trunk 3 of the shaft. At the upper position of the disk 8 (Fig. 5), the air passes the path of the fan - pipe 11 - opening 10 - annular channel 9 - opening 1 in the shaft 3 of the shaft.

0 When the intermediate position of the disk 8

(Fig. 6) the air moving out of the fan is divided into two streams, the flow of which is determined depending on the height of the disk 8, and

after exiting the pipe 11, it moves along the way the upper part of the flow opening 10 - annular channel 9 - heaters 4 - telescopic duct 12 - opening 1; the lower part of the flow - by way of the opening; iO - annular channel 9 - opening I; and the displacement of both parts of the flow occurs in the lower part of the casing 6 before the opening M. 1. Thus, by moving the disk 8 in height relative to the opening 10, the air load of the heaters 4 is controlled, the ratio of the flow rates of the mixed air flows and, finally, the temperature ratio air entering the shaft of the mine, which increases the efficiency of the installation.

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Claims (1)

Invention Formula The mine heater unit contains vertical groups of heaters located circumferentially around the opening in the shaft overlap of the shaft, the space under which is blocked by an umbrella, characterized in that. in order to increase efficiency by regulating the heating of the air, it additionally contains an annular casing, a shell and a guide disk, the shell is located with a gap relative to the overlap under the heaters and tightly fastened to the lower one, the casing is installed to form an annular channel outside the heaters, tightly sealed with  an overlap and an umbrella and is provided in the side surface at the level of the shell with an entrance opening, and the guide disc is installed in a horizontal plane in said channel with the possibility of vertical movement. Fig.z