RU2797624C1 - Linear air distribution assembly of diffuser type with turbulence reducing hexagonal mesh diffuser - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: devices used in ventilation systems, in particular flush-mounted linear air distribution units. The use of a turbulence reducing hexagonal mesh diffuser as part of a linear diffuser makes it possible to obtain the effect of turbulence reduction and ordering of flat supply air jets. The claimed technical result is achieved through the use of a special fixation unit for a turbulence reducing hexagonal mesh diffuser equipped with a polymer damper, which solves the existing problem of the occurrence of noise and vibration of the structure under operational loads. An additional effect of the present invention is the use of frame load-bearing elements in the form of special lamella-bridges, having a triangular profile in cross section with the apex facing downstream, which is a more aerodynamically advantageous option in contrast to standard orthogonal cross-section bars, and the use of special grooves for fastening power lamellas-jumpers using standard threaded products with a more complete contact area of the head of the self-tapping screw or bolt, and the head is seated flush.

EFFECT: significant reduction in noise and vibration of the structure under operational loads.

5 cl, 7 dwg

Description

The invention relates to devices used in ventilation systems, in particular to diffuser-type linear air distribution units for flush mounting.

Linear slot diffusers of various designs are known from the prior art, usually made of two identical metal profiles containing a platform attached to different frame elements of a standard shape. Examples of such solutions are air distribution devices known from sources: RU 142080, EP 3406985 A1, KR 101377611 B1, US 3962960, US 5194042, US 20120052790 A1, RU 90882 U1, RU 2716291 C1, US 453734 7, U 7384168, ES 1064231 U, RU 2751963 C1, RU 142080 U1, RU 206706 U1, RU 207241 U1, RU 20735 U1.

The closest to the claimed invention can be attributed to the design of the slot diffuser proposed in the patent RU 2751963, "Profile of a linear slot diffuser for flush mounting (options) and a linear slot diffuser for flush mounting".

The main disadvantages of the above devices include the method of fastening a decorative plate (metal sheet) into a groove using rivets, which, as a result of various operational influences, leads to the appearance of extraneous noise, which significantly reduces comfort parameters. Also, the disadvantages include the complete absence of damping elements of the structural components and sealing.

The problem to be solved by the present invention is the creation of a linear diffuser design with the elimination of the disadvantages inherent in analogues.

The technical result of the claimed invention is a significant reduction in noise and vibration of the structure under operational loads.

The technical result is achieved through the use of a special fixation unit for a deturbulent hexagonal mesh divider equipped with a polymer damper, which solves the existing problem of noise and vibrations during operating loads.

Also, an additional effect of the present invention is the use of frame strength elements in the form of special lamellas-lintels, having a triangular profile in cross section with the apex facing downstream, which is a more aerodynamically advantageous option in contrast to standard orthogonal section lintels, also to the additional effect includes the use of special grooves for fastening power lamellas-jumpers using standard threaded products with a more complete contact area of the head of the self-tapping screw or screw, and the head is seated flush.

The device consists of a linear diffuser (1) as part of a ventilation air distribution device, formed using two identical orthogonal metal profiles (2) connected by power bridges-lamellas (3) as frame bridges, which in turn form the air flow part. At the same time, on orthogonal metal profiles (2), the air receiver body (4) with the inlet pipe of the supply air (5) is fixed. On orthogonal metal profiles (2) there are damper units (6) in which a deturbulent hexagonal mesh divider (7) is installed in tightness. In addition, in the lower part of the orthogonal metal profiles (2) there are outlet edges (9) of the air distribution device, implemented as flat stop units (202) for the ceiling covering (8), which in turn form a flat air flooded jet.

At the same time, the trailing edges (9) of the orthogonal metal profiles (2) are implemented in several versions of the trailing edges, representing the attachment point for joining the air distribution device with various standard solutions for ceiling coverings (fabric ceiling cloth, PVC stretch ceiling, standard-shaped plaster assembly, etc. .).

The deturbulent hexagonal mesh divider (7) is, as a rule, a flat sheet, consisting of hexagonal through holes over the entire area of the sheet. The impact on the flow is to break up large-scale vortices and equalize the transverse distribution of the air flow velocity. Turbulence scales are distributed over a range of linear dimensions - from the largest eddies interacting with the average flow to the smallest eddies dissipating under the action of viscous forces. Installing a directing device in the flow path makes it possible to reduce the scale of turbulence to a value proportional to the characteristic size of the cell, thereby making a forced transition along the turbulence energy spectrum to the region of small vortices.

The claimed invention is illustrated in Fig. 1-4.

In FIG. 1 shows the version of a linear diffuser (1) with a deturbulent hexagonal mesh divider (7), the claimed design of which contains the following main elements: two identical orthogonal metal profiles (2) interconnected by power lamella bridges (3). Also, in FIG. 1 schematically shows the ceiling covering (8).

In FIG. 2 shows the general design of the air distribution unit, equipped with a linear diffuser (1), which also includes an air receiver housing (4) with an inlet pipe for supply air (5).

In FIG. 3 shows particular design features of the orthogonal metal profiles (2) of the linear diffuser (1), such as: a longitudinal groove (201) for fitting the head of standard threaded fasteners, a thrust assembly (202) of a plasterboard ceiling sheet, a damper assembly (6) with partial examples of installation of polymeric damping tapes of round (601) and square (602) sections into the tightness, the principle of landing a deturbulizing hexagonal mesh divider (7) in a damper assembly (6) with subsequent sealing with a polymeric tape is revealed, and also, the shape and location of structural elements are shown deturbulizing hexagonal mesh divider (7).

In FIG. 4 in the section of the power jumper-lamella (3) shows a structural element of the grooved lodgement (301), replacing the threaded mounting hole for standard threaded fasteners.

In FIG. Figure 5 shows a version of the trailing edges (9) of orthogonal metal profiles (2) for a fabric stretch ceiling.

In FIG. 6 shows a version of the trailing edges (9) of orthogonal metal profiles (2) for a PVC stretch ceiling.

In FIG. Figure 7 shows a version of the trailing edges (9) of orthogonal metal profiles (2) for a ceiling finishing system (plaster, putty).

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 illustrates a general view of a linear diffuser with a deturbulent hexagonal mesh diffuser

Fig. 2 illustrates a general view of a flush-mounted in-line air outlet

Fig. 3 illustrates particular design features of a linear diffuser.

Fig. 4 illustrates the cross section and shape of the power lamella-bridge

Fig. 5 illustrates an embodiment of trailing edges for a fabric ceiling covering.

Fig. 6 illustrates a version of the trailing edges for a PVC stretch ceiling.

Fig. 7 illustrates the version of the trailing edges for the ceiling finishing system (plaster, putty).

Claims (6)

1. A linear diffuser with a deturbulent hexagonal mesh divider as part of a ventilation air distribution unit for supply air, consisting of two identical orthogonal metal profiles connected to each other in an interference fit by power lamellas-bridges with a triangular cross section and a deturbulizing hexagonal mesh divider, while a deturbulizing hexagonal mesh divider atelier fixed in damper units using a sealing polymer tape of square or round cross section. 2. A linear diffuser according to claim 1, characterized in that the power lamellas-bridges are made with a triangular cross section, the smallest angle of which is oriented down the air flow. 3. Linear diffuser according to claim 1, characterized in that the orthogonal metal profiles are made with a longitudinal groove for fitting the head of the threaded fastener flush with the profile surface. 4. Linear diffuser according to claim 1, characterized in that the trailing edges of the orthogonal metal profiles can be made in the form of a mount for a stretch PVC ceiling. 5. Linear diffuser according to claim 1, characterized in that the trailing edges of the orthogonal metal profiles can be made in the form of an attachment point for a fabric ceiling cloth. 6. Linear diffuser according to claim 1, characterized in that the trailing edges of the orthogonal metal profiles can be made for a ceiling finishing system.

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