DE4121543C2 - Submersible pump - Google Patents

Description

The invention relates to an underwater pump for Ab carry large and small amounts of water with little Power requirement.

The use of this submersible pump is essentially contribute to large and small amounts of water with the lowest possible power requirement in a short time to be able to dissipate.

DE-OS 20 52 222 is already one Reciprocating piston pump known, the cylinders in Has the shape of circular sections in which arcuate pistons are reciprocated.

The invention has for its object large and small amounts of water with as little power as possible needs to be able to pay in a short time.

This task is due to the characteristics of claim 1 solved.

The advantages that can be achieved with the invention exist especially in adding large and small amounts of water to be able to dissipate less power in a short time, since the rotation of the movable chambers with a large external pressure compensation can take place, the respectively open Chamber is rotated over the fixed part, which this pushes the water out of the chamber. At the same time arises in the training provided according to claim 2 in the other closed chamber with normal air pressure supply an air-filled room, can be fed into the water at low pressure.

An embodiment is shown in Fig. I and Fig. II and is described in detail below.

Fig. I

The submersible pump consists of a fixed part ( 1 ) and a movable circular cylinder ( 2 ), which is divided by the partition ( 3 ) into the chamber ( 4 ) and ( 5 ) and with a rotation of 30 ° to the left over the fixed part Part ( 1 ) is rotated, the solenoid valves ( 6 ) and ( 7 ) of the inflow line ( 8 ) which leads through the fixed part ( 1 ) are closed. During this rotation, the air valve ( 9 ) of the movable air line must be open and the solenoid valve ( 10 ) of the chamber ( 4 ) must be closed, so that an air-filled space can arise during rotation in the chamber ( 4 ). On the other hand, in the chamber ( 5 ) the air valve ( 11 ) of the movable air line must be closed and the solenoid valve ( 12 ) must be open so that the water is forced out of the chamber ( 5 ) by the stationary part ( 1 ) during rotation . Thus, water can be fed into the chamber ( 4 ) at low pressure when the solenoid valve ( 7 ) opens.

If the rotation of 30 ° with closed solenoid valves ( 6 ) and ( 7 ) back to the right, the air valve ( 11 ) of the movable air line must be open and the solenoid valve ( 12 ) of the chamber ( 5 ) must be closed, so that in the chamber ( 5 ) an air-filled room can arise. On the other hand, in the chamber ( 4 ) the air valve ( 9 ) of the movable air line must be closed and the solenoid valve ( 10 ) must be open, so that the water flows out of the chamber ( 4 ) through the fixed part ( 1 ) to the outside during rotation is pressed. Water can thus be fed into the chamber ( 5 ) when the solenoid valve ( 6 ) opens at low pressure.

Depending on the size of the fixed part ( 1 ) or the movable union cylinder ( 2 ), large and small amounts of water can thus be drained off against the greater external pressure and supplied at low pressure.

Fig. II

The pressure ratios (arrows) are shown when the chamber ( 4 ) rotates from 30 ° to the left with the air and solenoid valves opened and closed. Since the external pressure from the pressure level ( 14 ) on the surfaces of the chamber ( 4 ) is the same and remains the same even when the rotation, if the rotation is not more than 30 °, the rotation takes place with a large pressure equalization on the pivotable circular cylinder.

When the solenoid valve ( 7 ) opens, water can be introduced from the container ( 15 ) into the chamber ( 4 ).

Claims (2)

1. Submersible pump with the following features:

• a) on a stationary, semicircular piston ( 1 ) is arranged a circular cylinder ( 2 ) which can be swiveled to the left and right by approximately 30 degrees, which is divided by a partition ( 3 ) and with the piston two pump chambers ( 4 , 5 ) limited,
• b) each pump chamber ( 4 , 5 ) is provided with an inlet valve ( 6 , 7 ) and an outlet valve ( 10 , 12 ), via which the pump conveys liquid into a pressure chamber during the pressure stroke,
• c) the pivotable circular cylinder is arranged in the pressure chamber of the pump and the outer surface of the pivotable circular cylinder is exposed to the pressure in the pressure chamber of the pump.

2. Underwater pump according to claim 1, characterized in that each pump chamber ( 4 , 5 ) via an air valve ( 9 , 11 ) is additionally connected to an air line.