A device for supplying air with balanced air volume

Abstract

The utility model relates to the field of indoor ventilation technology, and in particular discloses a balanced air supply device, including a balanced air supply plate installed at an air outlet, the balanced air supply plate including a plate body, the plate body thickness is 0.7-2mm, the plate body edge is formed with 3-6 fixing holes, the plate body middle part is formed with a plurality of throttling holes in an array, the diameter of the throttling holes does not exceed 10mm, each throttling hole is integrally formed with a partition, the thickness of the partition does not exceed half of the thickness of the plate body. The beneficial effects are: the structure is simple, there is no requirement for the shape of the air outlet, and all can be used, and the adjustment of the air volume of multiple air outlets can be completed by controlling the opening rate, which is convenient for the balanced air volume design of the ventilation system with multiple air outlets, and no later maintenance is required; the thickness is small, which greatly saves the installation space; the throttling hole has a small diameter, which can play a certain throttling role, and will not destroy the effect of the static pressure box while achieving balanced air supply, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of indoor ventilation, in particular to an air volume balanced air supply device. Background Art

[0002] Ventilation devices need to be installed in cinemas, theaters, auditoriums, gymnasiums and clean rooms to achieve low wind speed, low turbulence and small temperature difference displacement ventilation. Therefore, ventilation devices connected to static pressure boxes are generally installed in these places.

[0003] Traditional indoor air supply devices generally have multiple air outlets, and grilles are installed at the air outlets to adjust the air supply volume. Due to process reasons, most ordinary fixed non-adjustable grille air outlets are more than 10mm thick, which requires a high installation space. The necessary condition for balanced air supply is to use the static pressure difference to supply air. The opening rate of ordinary grille air outlets is too high, and the opening rate is consistent. When a large number of air outlets are designed, the wind pressure of different air outlets is different due to the inconsistent distance between the air outlet and the static pressure box, which will cause the static pressure to re-form dynamic pressure at the air outlet, destroying the original static pressure effect. The role of the static pressure box loses its meaning, resulting in turbulence, affecting the air volume, and uncontrollable wind speed attenuation. Utility Model Content

[0004] The utility model proposes an air volume balanced air supply device in order to solve the above problems.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A balanced air supply device includes a balanced air supply plate installed at an air outlet, wherein the balanced air supply plate includes a plate body with a thickness of 0.7-2 mm, 3-6 fixing holes are formed on the edge of the plate body, and a plurality of throttling holes are formed in an array in the middle of the plate body.

[0007] Furthermore, the diameter of the throttling hole does not exceed 10 mm.

[0008] Furthermore, a partition is integrally formed in each throttling hole, and the thickness of the partition does not exceed half of the thickness of the plate body.

[0009] Furthermore, the throttle hole completely penetrates the plate body, and a blocking cap is fixed to one end of each throttle hole away from the air outlet through a detachable connection.

[0010] Furthermore, the blocking cap includes a limiting cap head and a column, the diameter of the limiting cap head is larger than the diameter of the throttling hole, and the column is installed in a transitional fit with the throttling hole.

[0011] Furthermore, it also includes an air supply diffuser cover, which includes a flange and a cylindrical cover. The flange is fixed to the balanced air supply plate by bolts, the cylindrical cover and the flange are integrally formed, and a mesh plate is formed at one end of the cylindrical cover away from the flange.

[0012] Furthermore, a plurality of completely penetrating ventilation slots are formed on the side wall of the cylindrical cover.

[0013] By adopting the above technical scheme, the beneficial effects of the utility model are as follows: the structure is simple, there is no requirement for the shape of the air outlet, and it can be used. The air volume of multiple air outlets can be adjusted by controlling the opening rate, which is convenient for the balanced design of the air volume of the ventilation system with multiple air outlets and eliminates the need for later maintenance; the thickness is small, which greatly saves the installation space; the throttling hole has a small diameter, which can play a certain throttling role, and will not destroy the effect of the static pressure box while achieving balanced air supply, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of the balanced air supply plate of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the air supply diffuser cover of the utility model;

[0018] Figure 4 It is a cross-sectional view of the balanced air supply plate of the first embodiment of the utility model;

[0019] Figure 5 This is a cross-sectional view of a balanced air supply plate in Embodiment 2 of the present utility model;

[0020] Figure 6 It is a schematic diagram of the blocking cap structure of the second embodiment of the utility model.

[0021] The following are the descriptions of the reference numerals:

[0022] 1. Balanced air supply plate; 11. Plate body; 12. Throttle hole; 13. Fixing hole; 2. Air supply diffuser; 21. Flange; 22. Cylindrical cover; 23. Mesh plate; 24. Air vent; 3. Blocking cap; 31. Limiting cap head; 32. Column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figure 1-Figure 4 As shown, an air volume balanced air supply device includes a balanced air supply plate 1 installed at an air outlet, the balanced air supply plate 1 includes a plate body 11, the plate body 11 has a thickness of 0.7-2mm, the plate body 11 can be made of a stainless steel plate or a galvanized steel plate, has high strength, is not easy to rust, and has a long service life, 3-6 fixing holes 13 are formed on the edge of the plate body 11, which are used to install bolts / screws to fix the plate body 11 to the air outlet, and a plurality of throttling holes 12 are formed in an array in the middle of the plate body 11.

[0026] In this embodiment, the diameter of the throttle hole 12 does not exceed 10 mm, and the area of ​​the throttle hole 12 is not large, and is used to control the air volume of a single throttle hole 12 to reduce the air volume difference between different balanced air supply plates 1.

[0027] In the present embodiment, a partition is integrally formed in each throttling hole 12, and the thickness of the partition does not exceed half of the thickness of the plate body 11. Preferably, the thickness of the partition does not exceed 0.5 mm. A groove with the same size as the throttling hole 12 is pre-formed on the plate body 11, so that the number of throttling holes 12 to be opened can be selected according to the required air flow rate when in use. When in use, the corresponding partition can be punched open and knocked off by bolts and a hammer, so as to facilitate on-site production of the balanced air supply plate 1.

[0028] In this embodiment, an air supply diffuser hood 2 is also included. The air supply diffuser hood 2 includes a flange 21 and a cylindrical hood 22. The flange 21 is fixed to the balanced air supply plate 1 by bolts. The cylindrical hood 22 is integrally formed with the flange 21. A mesh plate 23 is formed at one end of the cylindrical hood 22 away from the flange 21. The air supply diffuser hood 2 is fixed to the outside of the balanced air supply plate 1 to prevent debris and lint from clogging the throttling hole 12 and affecting the air supply volume.

[0029] In this embodiment, a plurality of completely penetrating ventilation slots 24 are formed on the side wall of the cylindrical cover 22 to facilitate the wind to blow from the side wall of the cylindrical cover 22 into the room and adjust the direction of the wind.

[0030] Embodiment 2:

[0031] like Figure 5 , Figure 6As shown, the content of this embodiment is substantially the same as that of the first embodiment, except that:

[0032] In this embodiment, the throttle holes 12 completely penetrate the plate body 11, and a blocking cap 3 is fixed to the end of each throttle hole 12 away from the air outlet through a detachable connection. The detachable blocking caps 3 are used to block all the throttle holes 12. When installation is required, the corresponding number of blocking caps 3 can be removed as needed, which is easier to use.

[0033] In this embodiment, the blocking cap 3 includes a limiting cap head 31 and a column 32. The diameter of the limiting cap head 31 is larger than the diameter of the throttle hole 12. The column 32 is installed in a transitional manner with the throttle hole 12. The blocking cap 3 is made of rubber material and is easy to install and disassemble. When installing, the limiting cap head 31 faces the side where the wind blows, which can prevent the wind from blowing the blocking cap 3 off.

[0034] The working principle of the utility model is as follows: when in use, one end of the air supply duct is connected to the static pressure box, and the other end of the air supply duct is connected to a plurality of air outlets, each air outlet is fixed with a balanced air supply plate 1 by a detachable connection, and a plurality of throttling holes 12 are opened on the balanced air supply plate 1 as needed, and the number of throttling holes 12 can be opened or adjusted on site. Since the throttling holes 12 have a small aperture and the number of openings can be controlled, it is convenient to adjust the air supply volume and achieve the throttling effect without damaging the effect of the static pressure box, thereby ensuring that the air volume deviation blown out from each air outlet is within 15%, and the air outlet speed is lower than 0.3m / s, so as to achieve the effect of balanced air supply from multiple air outlets in the room.

[0035] Components not described in detail herein are prior art.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for supplying air with balanced air volume, characterized in that: The invention comprises a balanced air supply plate (1) installed at an air outlet, wherein the balanced air supply plate (1) comprises a plate body (11), the plate body (11) has a thickness of 0.7-2 mm, 3-6 fixing holes (13) are formed on the edge of the plate body (11), a plurality of throttling holes (12) are formed in an array in the middle of the plate body (11), the diameter of the throttling holes (12) does not exceed 10 mm, and a partition is integrally formed in each throttling hole (12), the thickness of the partition does not exceed half the thickness of the plate body (11).

2. A device for supplying air with balanced air volume, characterized in that: The invention comprises a balanced air supply plate (1) installed at an air outlet, wherein the balanced air supply plate (1) comprises a plate body (11), the plate body (11) has a thickness of 0.7-2 mm, 3-6 fixing holes (13) are formed on the edge of the plate body (11), a plurality of throttling holes (12) are formed in an array in the middle of the plate body (11), the diameter of the throttling holes (12) does not exceed 10 mm, the throttling holes (12) completely penetrate the plate body (11), and a blocking cap (3) is fixed to the end of each throttling hole (12) away from the air outlet through a detachable connection.

3. The air volume balanced air supply device according to claim 2, characterized in that: The blocking cap (3) comprises a limiting cap head (31) and a column (32); the diameter of the limiting cap head (31) is larger than the diameter of the throttling hole (12); and the column (32) is installed in a transitional manner with the throttling hole (12).

4. The air volume balanced air supply device according to any one of claims 1 to 3, characterized in that: It also includes an air supply diffuser cover (2), the air supply diffuser cover (2) including a flange (21) and a cylindrical cover (22), the flange (21) being fixed to the balanced air supply plate (1) by means of bolts, the cylindrical cover (22) and the flange (21) being integrally formed, and a mesh plate (23) being formed at one end of the cylindrical cover (22) away from the flange (21).

5. The air volume balanced air supply device according to claim 4, characterized in that: A plurality of completely penetrating ventilation slots (24) are formed on the side wall of the cylindrical cover (22).

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