RU2439372C2 - Method of fluid transfer and pump to this effect - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: fluid transfer pump comprises cylindrical housing 1 with intake and discharge branch pipes 2, 3, rotor with spiral membrane fitted in housing 1, two drive motors 6, 7 coupled with rotor shafts 4, 5. Said membrane is made up of Schpadi external propeller 10 with looped vanes and internal reverse rotation propeller 14 with solid vanes. Propellers 10 and 14 revolve at different angular speed. External propeller 19 is fitted on shaft 4 coupled with motor 6 arranged on one side of housing 1 while internal propeller 14 is fitted on shaft 5 coupled with motor 7 on the opposite side of housing 1.

EFFECT: higher pressure, ruling of outlet fluid flow swirling.

4 cl, 2 dwg

Description

The group of inventions relates to the field of pump engineering and can be used for pumping both liquids and gases.

Closest to the invention in terms of the method is a method for pumping liquids implemented in a pump, including pumping liquid in a pipe by means of a spiral diaphragm (see RF patent No. 2256820, class F04D 3/02, publ. July 20, 2005, bull. No. 20).

Closest to the invention in terms of the device is a pump for pumping liquid, comprising a cylindrical housing with inlet and outlet pipelines, a rotor with a spiral diaphragm, a drive connected to the rotor shaft and installed in the housing (see RF patent No. 2256820, class F04D 3 / 02, publ. July 20, 2005, bull. No. 20).

The reasons that impede the achievement of the following technical result when using the known method and device include the fact that this method of pumping fluid leads to a twisting of the fluid flow first in the stator, and then in the discharge pipe, which ultimately leads to the loss of fluid hydrodynamic pressure .

The objective of the invention is to increase the pressure and the exclusion of twisting of the stream leaving the proposed device liquid.

Using the group of inventions provides the following technical result:

- increase in pressure drop due to the use of the Coriolis force acting on the blades of both propellers in addition to the hydrodynamic forces;

- the absence of turbulence and swirling fluid flow through the use of an internal propeller.

The technical result is achieved in that in the method for pumping liquids, including pumping liquid in a pipe by means of a spiral diaphragm, according to the invention, the liquid is pumped by means of an elastic diaphragm made in the form of two propellers inserted into each other and rotating relative to each other at different angular speeds .

The technical result is also achieved by the fact that in the pump for pumping liquid, including a cylindrical body with inlet and outlet pipelines, a rotor with a spiral diaphragm, a drive connected to the rotor shaft and installed in the case, according to the invention, the spiral diaphragm is made in the form of a “Spadi” propeller ( see RF patent No. 2330791 C2, 08/10/2008) - as an external propeller with loop blades, in the middle of which on the coaxial shaft there is an internal reverse rotation propeller with solid blades, while the propellers rotate come at different angular velocities.

The external propeller can be connected via a shaft to an electric motor located on one side of the casing, and the internal propeller can be connected to another electric motor located on the opposite side of the casing, and the propellers rotate relative to each other at different angular speeds.

The external propeller can be made three-bladed, and the internal propeller - four-bladed.

The design of the pump that implements the method of pumping liquids is presented in the drawings, where:

figure 1 shows a longitudinal section of a pump for pumping liquid;

figure 2 is an isometric image of the location of the two propellers.

The pump for pumping liquid includes a cylindrical housing 1 with inlet and outlet pipelines 2, 3, a rotor with a spiral diaphragm and a drive in the form of two electric motors 6, 7, each of which is connected to the rotor shaft 4 or 5 and installed in the housing 8 or 9 The spiral diaphragm is made in the form of a “Spadi” propeller - as an external propeller 10 with three loop blades, each blade consisting of an input part 11, an output part 12 and an arcuate central peripheral part 13. In the middle of the external propeller 10 on a coaxial shaft 5 is an inner propeller 14, the reverse rotation solid with four blades.

The method of pumping fluid during pump operation is as follows.

The fluid through the inlet pipe 2 is fed into a cylindrical pump housing 1, where, under the action of an external propeller 10 and an internal propeller 14, it is distilled to the output pipe 3 and sent to the consumer.

The pump operates on the principle of coaxial screws located on the same axis one after the other. Moreover, the created two-propeller assembly is equivalent to three coaxial propellers in series: the first is the input part 12 of the external propeller 10, the second is the solid blades of the internal propeller 14, the third is the output part 12 of the external propeller 10. Moreover, the arcuate central peripheral part 13 of the external propeller 10 is under the influence of the Coriolis force from the influence of the fluid flow created by the blades of the internal propeller 14, rotating in the opposite direction. As a result of such interaction of the blades of both propellers 10, 14, the hydrodynamic forces acting on the pumped liquid and pushing it along the pipe - body 1 are amplified by the Coriolis force, which leads to an increase in pressure drop without axial and vortex swirling of the fluid flow.

Claims (4)

1. A method of pumping liquids, including pumping liquid in a pipe by means of a spiral diaphragm, characterized in that the liquid is pumped by means of an elastic diaphragm made in the form of two propellers inserted into each other and rotating relative to each other at different angular speeds. 2. A pump for pumping liquid, including a cylindrical housing with inlet and outlet pipelines, a rotor with a spiral diaphragm, a drive connected to the rotor shaft and installed in the housing, characterized in that the spiral diaphragm is made in the form of a “Spadi” propeller - as an external propeller with loop blades, in the middle of which on the coaxial shaft there is an internal reverse-rotation propeller with solid blades, while the propellers rotate at different angular speeds. 3. The pump according to claim 2, characterized in that the external propeller via a shaft is connected to an electric motor located on one side of the housing, and the internal propeller is connected to another electric motor located on the opposite side of the housing, the propellers rotating relative to each other in different directions different angular velocity. 4. The pump according to claim 2, characterized in that the external propeller is made of a three-blade, and the internal propeller is a four-blade.

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