RU2728398C1 - Device for arrangement of ventilation channel and input grid of device for arrangement of ventilation channel - Google Patents

Abstract

FIELD: ventilation.

SUBSTANCE: device for arrangement of ventilation duct and grate for device for arrangement of ventilation duct relates to ventilation, mainly ventilation of living quarters, namely to devices for arrangement of ventilation duct. Invention objective is organization of a ventilation duct. Technical result is achieved in the invention due to the device for organizing a ventilation duct consisting of a pipe and an input grid attached to it, wherein the input grid consists of a housing in the form of a hollow cylinder, slats located inside the housing, and the pipe is made of a polymer porous material, wherein the diameter of the pipe is greater than the diameter of the ventilation duct.

EFFECT: technical result consists in efficient preparation of air coming from the street into the ventilation duct for its further filtration.

18 cl, 7 dwg

Description

Application area

The invention relates to the field of ventilation, mainly ventilation of residential premises, and in particular to devices for organizing a ventilation duct.

State of the art

From the prior art, a solution is known RU2468575 (publ. 09/10/2012), a supply pipe for supply ventilation of livestock buildings, containing an opening for an inlet of outside air, an outlet, an air channel stretching along the longitudinal axis of the pipe and connecting the opening for inlet of external air with an outlet having a first air duct section stretching in the direction of the outside air flow from the outside air inlet to the livestock air inlet. The pipe also includes a second air channel section extending in the direction of flow from the room air inlet to the outlet, an air supply device located inside the second air channel section and designed to supply air from the room air intake opening and the first air channel section to the outlet. The inlet pipe comprises a first throttle device with a throttle valve rotatable between a first position in which it closes the first air channel section and a second position in which it opens the first air channel section.

The pipe contains a second throttle device located in the first section of the air channel in the direction of flow below the first throttle device. The second throttle device contains at least one air guide element installed in the first position for supplying air through the second throttle device in the form of a spiral movement around the longitudinal axis of the pipe. The invention ensures reliable operation of the supply pipe at low ambient temperatures and prevents the formation of snow or ice.

The disadvantages of this technical solution are its large dimensions and the impossibility of its use for the organization of ventilation in ventilation ducts in residential and administrative premises.

Also known is the technical solution UA95015 (publ. 06/25/2011). The invention relates to a ventilation duct or pipe, which are mainly used in buildings for the transfer of hot or cold air, as well as for other applications where air or liquid circulation is required, while the ventilation duct or pipe can be easily stored, transported and prepared for installation, at the same time it has high performance characteristics. The seamless ventilation duct has a plurality of elongated panels and a fully formed hinge between the coextruded panels, allowing appropriate movement between panels around these hinge regions so that the duct can be assembled for transport and / or storage. A ventilation duct or pipe is obtained by preparing a set of panels and a joining area of panels made of a different, resilient material than the material of these extruded panels, this includes the steps of co-extrusion or parallel injection molding or co-extrusion, forming by blowing, cooling the duct and bending the duct in the appropriate connections.

The disadvantages of this technical solution are such points as - the channel section itself implies a rectangular shape, not a round one, which contributes to the appearance of stagnant air zones, and, therefore, negatively affects the movement of the air flow in the channel, as well as this air channel is prefabricated, and therefore, there are joints of elements, which also negatively affects the movement of the air flow in the channel.

Known technical solution GB2400639 (publ. 20.10.2004). The seamless ventilation duct 1, including the integral hinge means 6, allows the duct to be folded for transport and / or storage. Channel 1 may contain a plurality of rigid or semi-rigid panels, each of which is connected to an adjacent panel by means of an integral hinge means to provide relative movement between the panels. The channel can be made of plastic, such as a thermoplastic or thermoplastic elastomer, or polypropylene or PVC. The channel can be formed by extrusion. A method of manufacturing a seamless ventilation duct by extrusion is also described.

The disadvantages of this technical solution include the following points: the channel section itself implies a rectangular shape, and not round, which contributes to the appearance of stagnant air zones, and therefore, negatively affects the movement of the air flow in the channel, as well as this air channel is prefabricated, and consequently, there are joints of elements, which also negatively affects the movement of the air flow in the channel.

In addition, the following solution is known from the prior art - the air distribution grille RU2115867 (publ. 20.07.1998). The device contains a housing with guide vanes located inside it; The guide vanes are made in the form of parallel plates, which are divided on the side of the air outlet, forming sections bent at an angle of 15-30 degrees to the opposite sides. The number of sections bent to opposite sides reaches 10 or 20 for higher efficiency; the length of the edge of these sections along the cut lines is from 0.02 to 0.1 of the maximum size of the slab with air movement. In addition, the portions bent towards opposite sides have a curved surface and their convex sides are directed towards each other. The guide vanes rotate to control the speed and direction of the air flow. The technical result is increased efficiency.

The disadvantages of using such a lattice include the formation of stagnant zones of air in the air channel, which are formed due to the fact that the lamellas have the same length and do not provide a uniform laminar air flow entering the channel.

Short description

The objective of the invention is to organize a ventilation duct.

The technical result consists in the effective preparation of the air coming from the street into the ventilation duct for its subsequent filtration.

The technical result is achieved in the invention due to a device for organizing a ventilation duct, consisting of a pipe, the inner surface of which forms the inner surface of the inlet ventilation duct, and an inlet lattice attached to it, while the inlet lattice consists of a body in the form of a hollow cylinder, lamellas located inside housing, and the pipe is made of a polymeric porous material, while the pipe diameter is greater than the diameter of the ventilation duct.

It is possible to implement a device for organizing a ventilation duct, in which the pipe is made monolithic, that is, it is one-piece and does not have welds.

It is possible to implement a device for organizing a ventilation channel, in which the thickness of the pipe walls is 10-20 mm.

It is possible to implement a device for organizing a ventilation duct in which the pipe is made of expanded polypropylene.

It is possible to implement a device for organizing a ventilation duct in which the pipe is made of foamed polyethylene.

It is possible to implement a device for organizing a ventilation duct, in which the inlet grill is attached to the pipe using self-tapping screws.

It is possible to implement a device for organizing a ventilation duct, in which the diameter of the inlet grille body, made in the form of a hollow cylinder, is less than the outer diameter of the pipe, but greater than the inner diameter of the pipe.

The technical result is achieved in the invention due to the inlet lattice of the device for organizing the ventilation duct, consisting of a housing in the form of a hollow cylinder, inclined lamellas located inside the housing from the outer edge, while at least two inclined lamellae in the lower part of the housing are made with lengthening ...

It is possible to make the inlet lattice of the device for organizing the ventilation channel, in which at least one elongated lamella closest to the edge of the lattice is made with a lower elongation.

It is possible to make the entrance lattice of the device for organizing the ventilation duct, in which the angle of inclination of the inclined lamellas is 30 to 45 degrees.

It is possible to make the entrance lattice of the device for organizing the ventilation duct, in which the inclined lamellas made with lengthening have at least one bend at the place of lengthening

It is possible to make an inlet lattice of the device for organizing a ventilation duct, in which a divider in the form of a vertical plate is made inside the housing in the center of the inclined lamellas.

It is possible to make an inlet lattice of the device for organizing a ventilation duct, in which in the inlet lattice body, made in the form of a hollow cylinder, there are seats for attaching the lattice to the pipe.

It is possible to perform an inlet lattice of the device for organizing a ventilation duct, in which there is an outer ring made of a plate flush with the plane of the outer edge of the body from the outer edge of the body, while the width of the outer ring plate from the outer edge of the body is 10-20 mm, and in the outer ring at least two holes have been made for attaching the grille to the pipe.

The technical result is achieved in the invention in the best possible way due to the combined device for organizing the ventilation duct, consisting of a pipe and an inlet lattice attached to it, while the inlet lattice consists of a housing in the form of a hollow cylinder, lamellas located inside the housing, while at least two inclined lamellas in the lower part of the body are made with elongation, and the pipe is made of polymeric porous material, the pipe diameter being greater than the diameter of the ventilation duct.

Description of drawings

Figure 1 shows a general view of a device for organizing a ventilation duct.

Figures 2 and 3 show the inlet grille of the device for organizing the ventilation duct.

Figure 4 shows the distribution of air flows in the wall channel when installing a standard inlet grill, without elongated inclined lamellas, with the formation of a lower zone of swirling of the air flow.

Figure 5 shows the distribution of air flows in the wall channel when installing the inlet grill, with elongated inclined ones.

Figure 6 shows an inlet grill having an outer ring on the outer edge of the housing, made of a plate flush with the plane of the outer edge of the housing.

Figure 7 shows a general view of a device for organizing a ventilation duct in a natural image.

Position 1 - pipe;

Position 2 - inlet grille of the device for organizing the ventilation duct;

Position 3 - body in the form of a hollow cylinder;

Position 4 - inclined lamella;

Position 5 - inclined lamella with lengthening;

Position 6 - an elongated lamella closest to the edge of the lattice, made with a lower elongation;

Position 7 - divider;

Position 8 - seats for attaching the grating to the pipe;

Position 9 - lower zone of swirl and curvature of the air flow in the air channel;

Position 10 - an outer ring made of a plate flush with the plane of the outer edge of the housing.

Position 11 - holes for attaching the grille to the pipe.

Detailed description of the invention

In the following detailed description of an implementation of the invention, numerous implementation details are set forth to provide a thorough understanding of the present invention. However, it is obvious to those skilled in the art how the present invention can be used, with or without these implementation details. In other instances, well-known techniques, procedures, and components are not described in detail so as not to obscure the details of the present invention.

In addition, it is clear from the foregoing disclosure that the invention is not limited to the foregoing implementation. Numerous possible modifications, changes, variations and substitutions, while retaining the spirit and form of the present invention, will be apparent to those skilled in the art.

Pipe 1 is made of a polymeric porous material, for example, foamed polyethylene can be used, and foamed polypropylene can also be used, while pipe 1 is made monolithic, that is, it does not have welded seams and is solid, and the diameter of the pipe is larger than the diameter of the ventilation duct by 2-10 millimeters, the wall thickness of pipe 1 is 10-20 mm. The pipe 1 can be made of the material of the "Tilit" trademark, as well as the material of the "Energoflex" trademark can be used for its manufacture.

The execution of pipe 1 from a porous material provides thermal insulation, sound insulation and moisture insulation, thus, external factors such as dampness that can form as a result of condensation, dirt that can accumulate and form in the duct, temperature drops do not affect the air flow in the air channel formed as a result of freezing of the walls, which ultimately contributes to the effective preparation of air coming from the street into the ventilation duct for its subsequent filtration. In addition, such a material has sufficient rigidity and elasticity, which allows pipe 1 not to bend during installation and at the same time restore its shape in the channel, which allows pipe 1 to firmly and reliably anchor in the air channel due to the friction force, because the diameter of pipe 1 is larger than the diameter ventilation duct, which ensures high-quality, reliable and tight installation of pipe 1 into the air duct. At the same time, the diameter of pipe 1 is larger than the diameter of the ventilation duct by 2-10 millimeters if the diameter of pipe 1 is less than 2 mm greater than the diameter of the ventilation duct, then the installation of the pipe in the duct may not be sufficiently dense and reliable, if this parameter exceeds the value in 10 mm, then the pipe may not fit into the channel or be very deformed during installation, which will negatively affect the preparation of air for its subsequent filtration and the organization of the air channel as a whole, because in places of deformation, vortices and stagnant zones can occur, for example, with a channel diameter of 132-133 mm, the pipe diameter can be 135-137 mm. The execution of pipe 1 monolithic, that is, one-piece, without welded and brazed seams, ensures its reliability in terms of the influence of external factors, such as temperature, humidity, that is, thus, the pipe has the same properties along the entire length and throughout the entire diameter, as well as the same smooth, smooth inner surface, while the presence of an adhesive seam can change the characteristics of thermal conductivity, moisture permeability in the place of this seam, as well as adversely affect the uniformity of the air flow, which ultimately contributes to the effective preparation of air coming from the street into the ventilation duct for its subsequent filtration. Thus, the inner surface of the pipe made of polymeric porous material forms the inner surface of the inlet ventilation duct partially from the side of the inlet grill, or completely.

In addition, the manufacture of a pipe from a polymeric porous material, for example, foamed polyethylene or foamed polypropylene, provides high resistance to external aggressive factors, to biological effects (mold, fungus, etc.), also, such material is toxic safe - it does not emit harmful substances, in addition, such a material has low hygroscopicity (absorbs little moisture) and low thermal conductivity due to the fact that the pores in such a material are isolated, which certainly contributes to the effective preparation of air coming from the street into the ventilation duct for its subsequent filtration. Also, another advantage of making pipe 1 from a polymeric porous material can be attributed to its manufacturability, it is easily cut with a knife, pliable, that is, when mounted, it is easily trimmed in accordance with the length of the air channel, and it is also light, soft and elastic, and when this is dense enough to hold the self-tapping screws that screw the inlet grille 2, as well as to hold the body 3 of the inlet grill 2, the diameter of which is smaller than the pipe diameter due to the friction force, which contributes to the effective organization of the air channel and effective preparation air coming from the street into the ventilation duct for its subsequent filtration.

The inlet lattice 2, consists of a body 3 in the form of a hollow cylinder, inclined lamellas 4 located inside the body from the outer edge at a distance of 15-20 mm from each other, the angle of inclination of the inclined lamellae in relation to the vertical plane of the section of the body of the inlet lattice is 30 to 45 degrees, while at least two inclined lamellas 5 in the lower part of the body in the form of a hollow cylinder are made with lengthening, the number of inclined lamellas 5 can be increased with an increase in the total number of inclined lamellas in case of an increase in the diameter of the body 3, and at least one near to the edge of the lattice, the elongated lamella 6 is made with a lower elongation, but the number of inclined lamellae 6 can be increased with an increase in the total number of inclined lamellae in the case of an increase in the diameter of the body 3, while the inclined lamellae made with an elongation of 5, 6 have at least one bend in the place of elongation, inside the body 3 in the center of the inclined lamellas 4, the divider 7 is made in the form of a vertical p fins, inside the body 3 in the center of the first from the bottom and from the top of the inclined lamella 4 there are seats 8 for fastening elements. The diameter of the body 3 of the inlet grating 2, made in the form of a hollow cylinder, is less than the diameter of the pipe 1. In addition, an embodiment of the inlet grating is possible, in which from the outer edge of the body there is an outer ring 10 made of a plate flush with the plane of the outer edge of the body, while the width of the plate from which the outer ring 10 is made is 10-20 mm.

The diameter of the intake opening of the standard inlet grille 2 is 96 mm, and the large number of inclined slats 4 (9 pieces) further reduces the usable area of the intake opening. At the same time, for the diameter of the intake hole 126 mm, the number of inclined lamellas 4 is equal to 7 pcs., And the recommended number of inclined lamellae 5 with elongation and at least one bend at the point of elongation is 4, including the elongated lamella 6 closest to the edge of the lattice, with lower elongation and having at least one bend at the elongation point made in the lower part of the body in the form of a hollow cylinder 3. In this case, as a rule, inclined lamellas 5 with elongation have two or three bends at the elongation point, and one close to at the edge of the lattice, an elongated lamella with a lower elongation 6 has 1 bend at the point of elongation, while the place of the bend itself is curved in such a way that it tends to a rounded shape. The entrance grill 2 can be made of composite materials, metal, plastic.

The implementation of the housing 3 of the inlet grille 2 in the form of a hollow cylinder makes it possible to use the device for organizing the ventilation duct, namely the inlet grille 2 attached to the pipe 1, in air ducts with a circular cross-section, in ducts with a circular cross-section, the air flows most naturally, without forming stagnant zones ... In addition, the implementation of the housing 3 of the inlet lattice 2 in the form of a hollow cylinder allows this housing to be installed to the pipe 1 tightly and tightly, since the diameter of the body 3 of the inlet grating 2, made in the form of a hollow cylinder, is less than the outer diameter of pipe 1, but larger than the inner diameter of pipe 1 and is 125-130 mm, body 3 is easily inserted into pipe 1 and grating 2 is held in pipe 1 due to the frictional force tight and airtight.

Implementation of inclined lamellas 4 inside the housing 3 from the outer edge at a distance of 15-20 mm from each other and the angle of inclination of the inclined lamellas in relation to the vertical plane of the section of the inlet lattice body is 30 to 45 degrees, since if the angle of inclination is less than 30 degrees, then the resistance to the passing air flow increases, but if the angle of inclination of the lamellas in relation to the vertical plane of the section of the inlet lattice body is more than 45 degrees, then the lamellas do not effectively retain drip moisture and snowflakes, and at least two inclined lamellas are performed 5 in the lower part of the body in the form of a hollow cylinder with elongation and at least one bend at the point of elongation allows to ensure minimum resistance to air flow, as well as a uniform laminar air flow immediately after entering the case 3 of the inlet grill, and also eliminates the lower zone of swirl and curvature of the air flow 9, which has a positive effect on the preparation of the air coming from the street into the ventilation duct for its subsequent filtration, for example, making inclined lamellas 4 inside the case from the outer edge at a distance of less than 15 mm will not provide a minimum resistance to the air flow, i.e. the resistance to the passing air flow increases, while the execution of inclined lamellas 4 inside the body from the outer edge at a distance of more than 20 mm can contribute to the fact that then the lamellas do not effectively retain dripping moisture and snowflakes and can contribute to the ingress of various objects into the air, ventilation channel, such as leaves of trees, small birds, etc., and adversely affect the flow of air through the channel, disrupting its uniformity or even blocking the air flow.

Execution in the inlet grating 2 close to the edge of the grating of the body 3 in the form of a hollow cylinder of one or more extreme inclined lamellas 6 with lower elongation is necessary for a tight connection of the body 3 of the inlet grating and the pipe 1. Also, this inclined lamella 6 performs the function of a stop, which has a positive effect on the reliability of fastening and, therefore, on the preparation of air coming from the street into the ventilation duct for its subsequent filtration and organization of the ventilation duct as a whole.

Execution in the entrance grating 1 inside the body 3 in the center of the first from below and from the top of the inclined lamella 4 seats 8 for fastening the grating to the pipe makes it possible to more reliably fix the body 3 of the entrance grating to the body of the pipe 1 with the help of fasteners, for example self-tapping screws, which has a positive effect on the convenience of installation and has a positive effect on the reliability of fastening and, therefore, on the preparation of air coming from the street into the ventilation duct for its subsequent filtration and organization of the ventilation duct as a whole.

It is also possible to make the inlet grille 2 of the device for organizing the ventilation duct, in which there is an outer ring 10 from the outer edge of the housing, made of a plate flush with the plane of the outer edge of the housing, while the width of the outer ring plate from the outer edge of the housing is 10-20 mm, which is greater than or equal to the wall thickness of pipe 1, the outer ring 10 serves as a limiter when inserting the body 3 of the inlet grating into pipe 1, so that the grating 2 does not fall into pipe 1, and also protects the end of the pipe 1 from external aggressive factors such as moisture, wind, dust, dirt. In addition, the implementation of the housing 3 of the inlet lattice 2 in the form of a hollow cylinder allows this housing to be installed to the pipe 1 tightly and tightly, since the diameter of the body 3 of the inlet grating 2, made in the form of a hollow cylinder, is less than the outer diameter of pipe 1, but larger than the inner diameter of pipe 1 and is 125-130 mm; body 3 is easily inserted into pipe 1 and grating 2 is held tightly in pipe 1 due to friction force and hermetically, in addition, for a more reliable attachment of the grid 2 to the pipe 1, the outer ring 10 may contain at least two holes for attaching the grid 2 to the pipe 1 using self-tapping screws.

The execution in the inlet grating 2 inside the body 3 in the center of the inclined lamellas 4 of the divider 7 in the form of a vertical plate is necessary for the bodies 3 of the entrance grating of a large diameter and allows to provide the specified flow sections between the inclined lamellas 4 in bad weather and strong wind, which in turn has a positive effect on the efficiency of preparation of air coming from the street into the ventilation duct for its subsequent filtration.

The device for organizing the ventilation duct functions as follows. The inlet grille 2 is attached to the pipe 1 using self-tapping screws, i.e. self-tapping screws, while self-tapping screws attach the inlet grating 2 to the pipe 1 through the seats 8, the porous polymer material of which the pipe 1 is made has sufficient density to hold the self-tapping screws securely and ensure a tight, reliable, hermetic fastening of the inlet grating 2 to the pipe 1. In addition, it is possible to attach the inlet grating 2 to the pipe 1 without using fasteners, in particular self-tapping screws, due to the design of the body 3 of the inlet grating 2 with a diameter less than the outer diameter of the pipe, but greater than the inner diameter of the pipe and due to the presence of the outer edge of the body 3 of an outer ring 10 made of a plate flush with the plane of the outer edge of the housing. Then the device for organizing the ventilation duct is tightly, reliably and hermetically inserted into the air, ventilation duct, after which it is possible to install inside the device for organizing the ventilation duct, namely in pipe 1, for example, a duct filter and other equipment. At the same time, the entrance grill 2 prevents large debris, small birds, small animals from entering the air channel, and also protects against atmospheric precipitation. In addition, the inlet grille 2, due to its design, provides minimal resistance to air flow, and also provides, due to the presence of inclined lamellas 4, inclined lamellae with elongation and bends 5 and 6, a uniform laminar air flow immediately after entering the housing 3 the inlet grill, as well as eliminates the lower zone of swirling and curvature of the air flow 9 in the air, ventilation channel, namely in the pipe 1. The uniform laminar air flow after passing the inlet grill 2 moves through the pipe 1 without swirling and curvature, while thanks to the pipe 1, namely, the properties of the material from which it is made, such as low thermal conductivity, low hygroscopicity, the influence of factors such as humidity, undesirable high and low temperatures on the air flow is excluded, and various molds, fungi (which can form in the ventilation duct) and other biological factors, while the mother himself ial is toxic safe and does not emit harmful substances into the air stream, while ensuring the uniformity of the air, ventilation duct. Then the air flow enters the filter for further filtration.

Thus, the claimed technical solutions provide effective preparation of air coming from the street into the ventilation duct for its subsequent filtration, due to the minimum resistance to the air flow, ensuring smooth, without significant turbulence, air flow from the street through the inlet grill through the air duct and eliminating the impact on stream of various aggressive external factors.

In the present application materials, the preferred disclosure of the implementation of the claimed technical solution is presented, which should not be used as limiting other, particular embodiments of its implementation, which do not go beyond the scope of the claimed scope of legal protection and are obvious to specialists in the relevant field of technology.

Claims (22)

1. A device for organizing a ventilation duct, consisting of a pipe, the inner surface of which forms the inner surface of the inlet ventilation duct, and an inlet lattice attached to it, while the inlet lattice consists of a body in the form of a hollow cylinder, lamellas located inside the body, and the pipe is made made of polymeric porous material, while the pipe diameter is larger than the diameter of the ventilation duct. 2. A device for organizing a ventilation duct according to claim 1, characterized in that the pipe is made in one piece. 3. A device for organizing a ventilation duct according to claim 1, characterized in that the pipe wall thickness is 10-20 mm. 4. A device for organizing a ventilation duct according to claim 1, characterized in that the pipe diameter is 2-10 mm larger than the diameter of the ventilation duct. 5. A device for organizing a ventilation duct according to claim 1, characterized in that the pipe is made of expanded polypropylene. 6. A device for organizing a ventilation duct according to claim 1, characterized in that the pipe is made of foamed polyethylene. 7. A device for organizing a ventilation duct according to claim 1, characterized in that the inlet grill is attached to the pipe using self-tapping screws. 8. A device for organizing a ventilation duct according to claim 1, characterized in that the diameter of the housing of the inlet grille, made in the form of a hollow cylinder, is less than the outer diameter of the pipe, but greater than the inner diameter of the pipe. 9. Entrance lattice of the device for the organization of the ventilation duct, consisting of: - body in the form of a hollow cylinder, - inclined lamellas located inside the body, while at least two inclined lamellae in the lower part of the body are made with an extension. 10. The entrance lattice of the device for organizing the ventilation duct according to claim 9, characterized in that at least one elongated lamella closest to the edge of the lattice is made with a lower elongation. 11. The entrance lattice of the device for organizing the ventilation duct according to claim 9, characterized in that the angle of inclination of the inclined lamellas is from 30 to 45 degrees. 12. The inlet lattice of the device for organizing the ventilation duct according to claim 9, characterized in that the inclined slats made with elongation have at least one bend at the elongation point. 13. The inlet lattice of the device for organizing the ventilation duct according to claim 9, characterized in that a divider in the form of a vertical plate is made inside the housing in the center of the inclined lamellas. 14. The inlet lattice of the device for organizing the ventilation duct according to claim 9, characterized in that in the housing of the inlet lattice, made in the form of a hollow cylinder, there are seats for attaching the lattice to the pipe. 15. The inlet lattice of the device for organizing the ventilation duct according to claim 9, characterized in that it has an outer ring on the outer edge of the body made of a plate flush with the plane of the outer edge of the body. 16. The inlet lattice of the device for organizing the ventilation duct according to claim 15, characterized in that the width of the outer ring plate from the outer edge of the housing is 10-20 mm. 17. The inlet lattice of the device for organizing the ventilation duct according to claim 16, characterized in that the outer ring has at least two holes for attaching the lattice to the pipe. 18. A device for organizing a ventilation duct, consisting of a pipe and an inlet grill attached to it, the inlet grating consists of a body in the form of a hollow cylinder and lamellas located inside the body, while at least two inclined lamellae in the lower part of the body are made with an extension, and the pipe is made of polymeric porous material, the pipe diameter being larger than the diameter of the ventilation duct.

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