DE8003910U1 - SPIRAL OUTLET FROM AN EXTERNAL PIPE AND A CORE PIPE CONCENTRICALLY ARRANGED IN IT - Google Patents

Description

The invention relates to a swirl outlet composed of an outer tube and a in it concentrically arranged core tube with a ring cross-section between the outer diameter of the core tube and the inner diameter of the outer tube radially extending swirl blades.

There are radial air outlets known whose supply air jets as a result of the swirl component blow in a highly turbulent manner along the outlet axis. Radial air outlets have also proven themselves in many individual cases, whose supply air jets exit twisted, but not along the outlet axis, but at an angle to it. The Coanda effect is used here. The supply air jets that are at an angle exit to the outlet axis, an air jet blowing along the outlet axis can be superimposed. The proportion of this air volume flow is fixed by the construction of the outlet and cannot be varied afterwards.

The invention is based on the object of creating a swirl outlet, with which both heating processes and cooling load situations can be optimally managed.

Starting from the twist outlet described above, the solution The proposed task proposed to store a valve plate outside the core tube, which can be introduced into the core tube on the inflow side and the outer diameter of which corresponds to the inner diameter of the core tube in the inflow area.

With the swirl outlet according to the invention, swirled air jets can be created Blow into the room at an angle to the outlet axis, with an adjustable air jet blowing along the axis as the core jet is superimposed. The portion of the core beam can be through a

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Change in the position of the valve disk according to the invention varies will. The adjustment of the valve plate can be done automatically or manually.

According to one embodiment of the invention, the core tube has a Rounding increasing the diameter towards the upstream pipe end and the outer pipe has a diameter to the pipe end on the outflow side towards enlarging rounding.

Finally, one embodiment of the invention also provides that the inflow side About the ring cross section between the outer tube and the Core tube an annular disk-shaped perforated plate is arranged.

With the outlet according to the invention, heating processes can be managed optimally, since the heating is carried out with a vertically downwardly directed Core beam can be accelerated significantly, which leads to direct energy savings. However, the outlet according to the invention dominates also ideal for cooling load situations in which a vertical core jet would cause drafts in the occupied zone. For cooling load situations, therefore, the proportion of the air volume flow in the core stream is reduced, the more so the lower the Outlet height is.

With the twist outlet according to the invention, the possibility is created to automatically regulate the proportion of the core jet depending on the temperature difference between the room and supply air.

In the drawing, a swirl outlet according to the invention is shown as an exemplary embodiment

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Show it:

Fig. 1 t the swirl outlet in a vertical cross section;

Fig. 2 to 4: the swirl outlet with differently positioned valve disc

The swirl outlet consists essentially of an outer tube 1, which increasing the diameter at the inlet and outlet end of the pipe Has roundings 2 and 3, respectively. Rounding 2 is not absolutely necessary for the desired function.

A core tube 4 is arranged concentrically in the outer tube 1, on '' the outer circumference of which eight twisted blades 5 extend radially over the

between the outer tube 1 and the core tube 4 remaining annular space |;

extend. |

The core tube 4 is on the outflow side with a lower cover plate 6; and has the same diameter as the pipe fc on the outflow side end enlarging rounding 7. f

A valve disk 8 is arranged in the inlet area of the core tube 4,

which enters the core tube 4 on the inflow side through a servomotor 9:

is feasible.

An annular disk-shaped perforated plate 10 sits on the inflow side above the Ring cross-section between the outer tube 1 and the core tube 4 and creates the prerequisite for a sufficient support jet volume flow. It goes without saying that the perforated plate also has the ring cross-section

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closing slide valve or diaphragm may be associated to require U
%, if necessary, the back-up jet volume flow to 100 % of the supply air

:: 'to be able to increase the share.

The swirl outlet according to the invention can either be equipped with an air inlet duct directly connected or connected to a duct network with the help of an air distribution box and, for example, a flexible pipe will.

Depending on the type of connection selected, the air flows into the outlet from the connection box or directly from the supply air duct. If the cross section of the core tube 4 is blocked by the valve disk 8, the supply air flows exclusively over the ring cross section between the outer tube 1 and the core tube 4 and is twisted by the blades 5. The air jets generated are highly inductive and subject to pronounced turbulence. Due to the rounding 3, the Coanda effect and thus an additional radial beam deflection is achieved. The horizontal radial beams thus generated cause a strong admixture of the ambient air and thus a rapid adjustment of the supply air temperature to the room air temperature.

Depending on the position of the valve disk, a partial volume flow has a different flow Size through the core tube 4. In this way, a vertical support jet is formed, which is the twisted air jets

Superimposed from the ring cross-section and the jet penetration depth in { increases the space.

Claims (3)

Claim to protection 1. Swirl outlet from an outer tube and one concentric in it arranged core tube with a ring cross-section between the outer diameter of the core tube and the inner diameter of the outer tube radially extending twist blades, characterized by one mounted outside the core tube (4), valve disk (8) that can be introduced into the core tube on the inflow side, the outside diameter of which corresponds to the inside diameter of the core tube (4) in the inflow area. 2. Swirl outlet according to claim 1, characterized in that the core tube (4) has a diameter to the tube end on the inflow side towards enlarging rounding (7) and the outer tube (1) an enlarging the diameter towards the outflow-side tube end Has rounding (3). 3. swirl outlet according to claims 1 and 2, characterized in that that on the inflow side a perforated plate extending over the ring cross-section between the outer tube (1) and the core tube (4) is arranged is.