SU67736A1 - Pneumatic folding device - Google Patents

Description

As is well known, in existing methods of supplying water under pressure of compressed air, hermetically closed tanks are used, part of the space of which is filled with water, and the rest part is filled with compressed air. When disassembling water from a tank and mixing its quantity, compressed air expands and reduces the water level in the tank to the lower permissible limit, at which it is necessary to close the drain valve due to the danger of escaping compressed air from the tank. On the other hand, when pumping water back into the tank and increasing its quantity in it, there is a danger of pumping water into the tank and: there is a need to close the pressure valve in time |

The invention relates to pneumatic fittings consisting of two tanks arranged one above the other and interconnected by a pipe for balancing air pressure: the lower tank is used as a compressed air accumulator and the top one as a water tank.

In the proposed device, the open end of the pipe coming out of

water tank, connected to a reservoir that is partially filled with air and fitted with a valve that lets air in.

To obtain an automatic interruption in the supply of water from the water tank and its discharge, the end of the pipe adjacent to the diverting network removes the upper part of the tank at a height that ensures the permissible decrease of the water level in the water tank in order to create a water gate tank and tank.

The schematic drawing shows the proposed water folding device.

The device consists of two cylindrical tanks arranged one above the other and interconnected by an E-pipe; of these, the upper one serves as a water tank, and the lower one as a battery of compressed air. The water tank B is in turn connected by a pipe A with a tank B having an air inlet G. In a tank B a pipe D is inserted, connected to a distributing network.

When the tank B is filled with water, the air in it is compressed as in the lower tank, and the elasticity

this air is used to create pressure in the water supply system.

To obtain an automatic interruption in the supply of water from the water tank B and its discharge, the upper end of the pipe D is brought to the upper part of the reservoir B to a height H, which ensures the permissible decrease of the water horizon in the water tank B.

The air inlet valve G is designed to discharge the air collected in the upper part of tank B and to communicate tank B with the atmosphere at the lowest water level in tank B.

The operation of the device is as follows.

When parsing water from water tank B and reducing its quantity in it, the compressed air will still produce the necessary pressure on the water, lowering it to the lower permissible limit in tank B.

At this moment, pipes A, D of reservoir B will be completely filled with water, and further analysis of water due to the reserve in pipe A will lead to a decrease in the level of water in pipe A. As a result, the difference in height of water columns will be N - / g , which will balance the pressure of the charge air in the battery.

After this, water cannot be disassembled, since the pressure in the upper part of tank B at this moment will be equal to atmospheric, and water flowing out of pipe D will create a negative pressure in the upper part of tank B, which will open valve D and atmospheric air, getting into tank B will interrupt the water jet, thereby disconnecting the battery from the pressure distribution network.

In the event of air leakage from the accumulator, the pressure corresponding to the upper water level will be lower than the valve adjustment pressure. As a result of this, the pumped water, having reached the upper level, will begin to overflow along the central pipe E into the lower part of the tank and the pressure will be restored.

Thus, the described water-mounting device during operation will provide the basic necessary conditions:

prevent the lowering of the water level in the battery below the calculated one in order to avoid air flowing into the discharge network and the associated discharge of the battery;

It will not allow the accumulator to generate a pressure higher than the calculated one in the case of pumping the upper tank with water.

Subject invention

A pneumatic dispenser consisting of two tanks arranged one above the other and connected by a pipe, the lower of which tanks is a compressed air accumulator, and the upper one is a water tank, characterized in that the open end of the pipe A coming out of the water tank B, connected to a pipe or tank B, partially filled with air and equipped with an air inlet valve D, moreover, to obtain an automatic interruption in the water supply from the water tank and its discharge, the end of the pipe D to the distributing network yveden the top of the pipe or tank B at a height that ensures the permissible reduction in the water level in the water tank or tube A in order to produce Nogo shutter water between the tank and the tank B. In