DE19531937A1 - Device for moving fluids in pipelines, e.g. for natural gas etc. - Google Patents

Abstract

The device has motorised rotation elements formed by rotor blades (1) set inclined to the conveying direction (2) of the fluid. The angle between the conveying direction and transverse axis of the rotor blades is between 20 and 60 degrees. The pipe line has, in the installation area of the rotor blades, expansions (4a) which form a housing chamber (4d) with a practically flow-neutral core. The upper pipe part and lower pipe part with the expansions inbetween holding the rotor blades form a separate component which can be installed in the pipe line. The motor for the rotor blades is set perpendicular to the transverse axis.

Description

The invention relates to a device for transportation of fluids in pipelines with engine power driven rotation elements and is applicable in particular others in ventilation technology and for the transport of Gases and liquids, for example for transportation of natural gas in pipelines. Other possible application areas are the use as turbochargers for combustion motors, in vacuum cleaners or pumps.

It is mostly common to transport gases to use so-called cross-flow fans. Here is a turbine wheel at right angles to the suction direction Turbine blades arranged by rotation the gas sucks in and is offset by approx. 90 ° Ejects direction of suction again. The original is replaced by bends in the pipeline Flow direction restored. The disadvantage of this solution is that the gas molecules undergo multiple changes of direction and due to the constructive structure considerable energy and Frictional losses occur.  

The invention is therefore based on the object Device for conveying fluids in tubing to create solutions that are simple and economical producible, retrofittable as well as repair and maintenance is friendly and the energy loss in fluid trans port significantly minimized.

This object is achieved by the features in the characterizing part of main claim 1 in conjunction with the features in the preamble. Appropriate embodiments of the invention are contained in the subclaims.

A major advantage of the invention is that low fluid mechanical resistances, which of the throughput volume of the fluids can be overcome have to.

Because the rotating elements are rotor blades, which is oblique to the direction of transport of the fluid are arranged is the linear deflection of the conveying fluids only very low.

Another advantage of the invention is that for retrofitting, for example in air technical pipeline the space requirement due to the Bow loop no longer required significantly reduced can be decorated. The blower can be quick and cost Saving in a new system or in existing air technical management can be integrated.

The replacement of the motor-blower unit can be done in one Fraction of the time compared to conventional cross-flow blowing can be accomplished. Also a separate engine change is easy via the mounting flaps on the housing feasible because the blower motor during assembly  design-related in horizontal and vertical Installation is intercepted by the housing.

No separate foundation is required for the blower unit To be created, the pipe ends are held with intercepted ropes or the like.

Furthermore, the use of low-noise propellers possible and resonance vibrations are better manageable.

The invention is based on one in the Figures at least partially shown execution example will be explained in more detail.

Show it:

Fig. 1 shows the functional principle of a conventional cross-flow fan according to the prior art,

Fig. 2 shows a sectional view through the housing chamber with indicated rotor and electric motor.

As can be seen from Fig. 1, a convenli ches cross-flow fan has a suction line 6 and a pressure line 7th A turbine wheel 8 with turbine blades 9 is arranged in a fan housing 10 and sucks the gas out of the suction line 6 and presses it across a total of three 90 ° tube angles into the pressure line 7 . The resulting energy losses are obvious.

In contrast to the principle of the cross-flow fan, FIG. 2 shows the novel principle of an oblique-current fan.

Integrated into a pipeline 4 and connected between the upper pipe part 4 b and the lower pipe part 4 c, a housing chamber 4 d is arranged, which has extensions 4 a and in which the rotor blades arranged at an angle α of 45 ° to the conveying direction 2 are arranged 1 are located. The rotor blades 1 are driven by the electric motor 5 . The change in direction, that is, the linear deflection which the fluid to be transported has to perform from the upper pipe part 4 b to the lower pipe part 4 c, is extremely slight and is 15 ° in the present exemplary embodiment. The fluid is passed through the rotor blades 1 into the expanded aerodynamically optimally designed housing chamber 4 d with an almost flow-neutral core, parts of the electric motor 5 and the fan being flowed around in an almost tubular path. The rotor blades 1 are adjustable and can therefore be adapted to the respective specific operating conditions.

The invention is not based on that described here Embodiment limited. Rather it is possible by combining the means and characteristics to implement further design variants without the Leave the scope of the invention. This also includes a reversal of the described suction principle of Fan in a pushing principle.

Reference list

1 rotor blades
2 Direction of transport
3 transverse axis
4 pipeline
4 b upper tube part
4 c lower tube part
4 d housing chamber
5 electric motor
6 suction line
7 pressure line
8 turbine wheel
9 turbine blade
10 fan housing.

Claims (8)

1. Device for conveying fluids in pipelines with rotating elements driven by motor power, characterized in that the rotating elements are rotor blades ( 1 ) which are arranged obliquely to the conveying direction ( 2 ) of the fluid. 2. Device according to claim 1, characterized in that the angle (α) between the direction of conveyance ( 2 ) and the transverse axis ( 3 ) of the rotor blades ( 1 ) is in the range between 20 ° and 60 °. 3. Device according to claim 2, characterized, that the angle (α) is 45 °. 4. The device according to claim 1, characterized in that the pipeline ( 4 ) in the installation area of the rotor blades ( 1 ) has extensions ( 4 a) which form a housing chamber ( 4 d) with an almost flow-neutral core. 5. The device according to claim 1, characterized in that the upper tube part ( 4 b) and the lower tube part ( 4 c) with the intermediate the rotor blades ( 1 ) receiving extensions ( 4 a) form a separate component, which in the pipeline ( 4 ) is inserted. 6. The device according to claim 1, characterized in that the rotor blades ( 1 ) are driven by a motor ( 5 ), which is arranged perpendicular to the transverse axis ( 3 ). 7. The device according to claim 6, characterized, that the motor is an electric motor. 8. The device according to claim 1, characterized in that the rotor blades ( 1 ) are adjustable in their aerodynamic parameters.