SU1423867A1 - Apparatus for creating hot-air screen in room vestibule - Google Patents

Abstract

The invention relates to a technique of ventilation and allows to increase the efficiency of the device by heat recovery. In the lower part of the vestibule 1 there is a supply nozzle, made in the form of a disk 5, its outlets 6 are placed in concentric circles and have a diameter increasing from the center of the disk to the periphery. The exhaust nozzle is made in the form of a ring 7, covering the disk. Its inlets are made in the form of radial slots 8. A supply duct 3 is installed in exhaust duct 4 with the formation of a pipe-like heat exchanger in the tube, which provides thermal protection of duct 3 from heat losses and utilization of heat from the exhaust air. to split the heated air into streams having the same temperature and speed. 2 Il. (/) WITH

Description

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The invention relates to a valve - and can be used to create an air-heat curtain in the vestibule of a room.

The purpose of the invention is to increase the eco-efficiency by utilizing heat.

Figure 1 shows the device, a cross-section; fig 2 - section

-A in figure 1 about

Device for creating an air-air curtain in the vestibule of the 1st room

contains 1 frietny and exhaust nozzles connected to the vestibule, exhaust ports and inlets, respectively, connected to the additional air ducts 3 and 4, the inlet nozzle is located at the bottom

As part of the vestibule 1 and is made in the form of | 5, its outlets 6 are arranged in concentric circles and have a variable diameter, crowning from the center of the disk 5 to the periphery, the exhaust nozzle is made in the direction of the disk 5 of the ring 7, go the inlets are made in the ide of the radial slots 8, and let the inlet duct 3 be installed in the exhaust duct 4 to form a heat exchanger of the type pipe in the duct. The unit is equipped with an air heater 9 and fans 10 and 11.

1The device operates as follows.

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The supply air, heated to a certain temperature in the air heater 9, is injected into the supply air inlet 3, from which the supply air jfB flows. The heated air is exhausted from the outlet openings 6 of the disk 5 to the vestibule 1, cuts the holes through the vestibule 1 into the room

2cold outside air, reflected from the ceiling of vestibule 1, rushes

from the bottom to the inlet for

The circular slots 8 of the ring 7 are removed and removed through the exhaust duct A by an exhaust fan 11, which delivers a removable stream of air to the heater 9. The cycle repeats

The execution of the outlet openings in the variable diameter disk 5, which increases from the center of the disk 5 to the periphery, allows the exhausting heated air flow to be divided into trickles having the same temperature and speed.

Placing the intake duct 3 in the exhaust duct 4 to form a pipe-in-tube heat exchanger allows thermal protection of the inlet duct 3 from heat losses and utilization of the heat of the exhaust air of the exhaust duct 4,

Claims (1)

Invention Formula A device for creating an air-thermal curtain in a vestibule, containing inlet and exhaust nozzles connected to the vestibule, having outlet and inlet openings and connected to the duct of the same name, respectively, characterized in that, in order to increase efficiency by heat recovery, the inlet nozzle is located in the lower part of the vestibule and is made in the form of a disk; its outlet openings are arranged in concentric circles and have a variable diameter increasing from the center of the disk to the periphery, extending asadok ohvatshayuschego formed as a disk ring, its inlets are designed as radial slots, and the air intake duct installed in a fume tanloobmennika to form a double pipe type. L X