SU879177A1 - In-flow apparatus - Google Patents

Description

The invention relates to the field of ventilation.

It is known garittovoe device containing an air intake pipe attached to the chamber, having in the lower part of Oina with rotary valves placed in them (1.

In a known device, there are large aerodynamic losses resulting from the turning of the air stream.

The purpose of the invention is to reduce aerodynamic loss of npnTOHiHoro devices.

The goal is achieved by the fact that the device additionally contains baffles, placed in the chamber with the formation of a bypass channel, and an exhaust pipe, reported lately.

The drawing shows the device, the overall appearance.

The intake device contains an air intake pipe 1 attached to the chamber 2, which has windows with rotating shutters 3 in the inner part. The device additionally contains deflection partitions 4, 5 and 6 placed in the chamber 2 with the channel bypass channel 7 and outlet pipe 8 communicated with the latter. In the air cooler and bar tube 1 is installed. Calorifer 9.

The device works as follows.

The created wind is the main ventilation air, the vacuum promotes the intake of fresh air into the air intake pipe I. During the winter period, the backplates 3 open the air heaters 9. The air flow in this case runs parallel to the axis of the air intake pipe 1 through the air heater 9 to the exhaust pipe 8, at the same time, aerodynamic losses in the inflow chamber are minimal and correspond to the resistance of the heater 9.

In the summer, when air is not required to be heated, valve 3 is lowered (in the drawing, the position of clone 3 corresponds to puncture lithium), and the air flow through the air intake pipe 1 is separated by two, skirting the heater 9 through bypass. 7. Since the sum of the 20 marne area of the section of the bypass channel 7 is larger than the section of the section and the intake pipe 1, the air flow rate decreases and, consequently, the aerodynamic resistance decreases

25 (quadratic dependence) when turning the air flow, which compensates for the loss. On the air flow turn. The bypass channels 7 are expanded,

30 which creates a smoothness (approach of the air flow (with a decrease in its speed) to the exhaust gr. 8. The described technical) significantly reduces the aerodynamic efficiency; Opening of the inlet chamber improves the work of the heaters due to more uniform removal of heat from their surfaces. The first air intake device containing an air intake pipe, connected to the “amer”, which has windows with spacers in the lower throttle valves at the bottom, is perfect: those that aim at aerodynamic losses; The device additionally contains a double-sided (partition walls and, 1 mixing in the chamber with a water channel) and an exhaust pipe communicated from the last M. The source of information, lijpjiHHfkfi in the high direction during the examination: 1. 1. / 06. M ° 24 F 7/02 .1978. ± g // i,

Claims (1)

Claim An inflow device containing an intake pipe attached to the chamber, having at the bottom of the window with rotary dampers located 879177 located in them, characterized in that, in order to reduce aerodynamic losses) the device further comprises ⁵ baffle plates placed in the chamber with the formation of a bypass channel, and an exhaust pipe communicated with the latter. Source of information taken into account in the examination: 1. USSR author's certificate on application No. 2629160/06; class F 24 F 7/02 .1978.