SU417670A1 - - Google Patents

Description

one

The invention relates to means and devices for preventing icing of personal hygiene equipment.

Devices for preventing icing of pneumohydraulic apparatus having inlet and outlet manifolds are known by exposing the frosting organs to a medium with a temperature higher than the icing point.

The proposed device differs from the known ones in that it is made in the form of a filled heated medium, such as alcohol, a closed tank, the lower and upper parts of which are connected by channels to the outlet of the heated apparatus.

The drawing shows the proposed device.

The switching element 1 is placed in the housing 2, having inlet and outlet connections. The tank 3 with an oil-freezing fluid is connected to the inlet pipe 4 by a tube 5 with a shut-off valve 6. The inlet 4 in the area of the tube entering it has a narrowing (reduced bore). The portion of the tube 5 located inside the nozzle is bent in the direction of the movement of the gas flow. The upper part of the tank 3 is connected to the wide part of the nozzle 4 by a tube 7 with a throttle device, for example, a tongue 8,

to ensure the required flow of low-freezing liquid.

The operation of the device is as follows. A working mixture-gas with a certain concentration of water vapor (humidity) passes through the highway with a switching device.

Since tank 3 is in communication with the line, the pressure in the tank is equal to the pressure in the line. The gas flow creates a vacuum at the cut of the tube 5, and when the valve 6 is open, the liquid from the tank 3 is supplied to the main. To ensure a certain expense

the fluid pipe 4, at the points where the pipes 5 and 7 are inserted, has a different flow cross-section, and the pipe 7 is equipped with a throttle.

With noniepine, the temperature of the line walls on the surfaces of the parts falls out

dew.

The loss of dew on the internal surfaces and in the gaps between the moving elements in known devices leads to the formation of ice from the deposited dew, and the mechanism stops.

In the presence of low-freezing liquid

type of alcohol ice formation occurs

at a lower temperature than in known devices. Therefore, the proposed device will work well at sub-zero temperatures.

Subject invention

Claims (2)

1. A device for preventing icing of pneumohydraulic apparatus having inlet and outlet nozzles by exposing frosting organs with a medium with a temperature higher than the formation point of Icing, characterized in that it is made in the form of a closed tank filled with a heated medium, such as alcohol, the upper parts of which are connected by channels with the inlet of the heated apparatus. 2. A device according to claim 1, characterized in that a choke is installed in the channel connecting the upper part of the tank to the inlet pipe.