Vertical separation type air supply pipe system capable of pre-distributing air volume

Abstract

The utility model discloses a vertical separation type air supply pipe system capable of pre-distributing air volume, which comprises a main air pipe integrally in an inverted 'L' shape, a vertical section of the main air pipe vertically penetrates through an overground staircase and an underground staircase, an overground staircase air supply outlet corresponding to a floor needing ventilation is arranged on one side of the main air pipe facing the overground staircase, and the underground staircase air supply outlet is arranged on the other side of the main air pipe facing the underground staircase. An underground staircase air supply outlet corresponding to a floor needing ventilation is formed in the face, facing the underground staircase, of the main air pipe, a partition plate dividing the vertical section of the main air pipe into a first partition type cavity and a second partition type cavity is arranged in the main air pipe in the longitudinal direction, the first partition type cavity is communicated with the underground staircase air supply outlet, and the second partition type cavity is communicated with the underground staircase air supply outlet. And the second separated cavity is communicated with an air supply outlet of an overground staircase. The utility model can effectively solve the problem that the pressurized air supply system respectively meets the air supply quantity requirements of the overground staircase and the underground staircase, and can be widely applied to the field of building air supply.

Description

Technical Field

[0001] The utility model relates to the field of building air supply, in particular to a vertically separated air supply pipe system capable of pre-distributing air volume. Background Art

[0002] Building above-ground and underground stairwells are typically located in the same location. According to national standards, fire separation measures must be implemented to separate the above-ground and underground stairwells into two independent stairwells. If natural ventilation is not possible in a stairwell, a separate pressurized air supply system must be installed for each. According to current regulations, if the number of underground stairwells is small, a shared pressurized air supply system can be used for both stairwells. The air volume of the shared pressurized air supply system is the sum of the calculated pressurized air volume for the above-ground and underground stairwells, but effective measures must be taken to meet the air volume requirements for each stairwell.

[0003] Conventional designs, lacking effective and reasonable measures to meet airflow requirements for both above- and underground stairwells, abandon the option of a combined pressurized air supply system for both above- and underground stairwells. Instead, they opt for separate pressurized air supply systems for both the above- and underground stairwells. This requires two pressurized air supply systems, increasing equipment and electrical equipment investment and occupying a larger area of ​​the machine room. Utility Model Content

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned background technology and to provide a vertically separated air supply duct system that can pre-distribute the air volume, so that it can effectively solve the problem of the pressurized air supply system meeting the air supply volume requirements of the above-ground stairwell and the underground stairwell respectively.

[0005] The utility model provides a vertically separated air supply duct system that can pre-distribute air volume, including a main air duct that is an inverted "L" shape as a whole, the vertical section of the main air duct vertically passes through the above-ground stairwell and the underground stairwell, the side of the main air duct facing the above-ground stairwell is provided with above-ground stairwell air supply outlets corresponding to the floors that need to be ventilated, and the side of the main air duct facing the underground stairwell is provided with underground stairwell air supply outlets corresponding to the floors that need to be ventilated, and a partition plate is provided in the main air duct along the longitudinal direction, which divides the vertical section of the main air duct into a first separated cavity and a second separated cavity, wherein the first separated cavity is connected to the underground stairwell air supply outlet, and the second separated cavity is connected to the above-ground stairwell air supply outlet.

[0006] In the above technical solution, the bottom of the second partitioned cavity is flush with the ground of the first floor, the first partitioned cavity extends into each floor of the underground stairwell, and the underground stairwell air supply vents and the ground stairwell air supply vents face the stairwell.

[0007] In the above technical solution, the horizontal depth of the first partitioned cavity is smaller than the horizontal depth of the second partitioned cavity.

[0008] In the technical scheme, the top of the partition plate is located at a turning position of the top of the main air pipe, the top of the partition plate is provided with a rotating shaft, a rotating cylinder coaxially arranged is sleeved on the rotating shaft, and an adjustable partition plate is arranged on the outer wall of the rotating cylinder in the axial direction.

[0009] In the technical scheme, the rotating cylinder is provided with an angle scale.

[0010] In the technical scheme, the floors between adjacent ground stairwell air supply outlets are spaced apart by one floor.

[0011] The utility model discloses a vertical partition type air supply pipe system capable of pre-distributing air volume, which has the following beneficial effects:

[0012] The utility model provides a vertical partition type air supply pipe system capable of pre-distributing air volume, through adjustable partition plate and the main air pipe is divided into two cavities, realizes the air volume pre-distribution of two partition type cavities of main air pipe, to satisfy the air supply amount requirement of ground stairwell and underground stairwell respectively. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is structural front view of vertical partition type air supply pipe system capable of pre-distributing air volume of the utility model;

[0014] Fig. 2 It is structural isometric view of vertical partition type air supply pipe system capable of pre-distributing air volume of the utility model. DETAILED DESCRIPTION

[0015] The utility model will be further described in detail in combination with the drawings and examples, but the example should not be understood as the limitation of the utility model.

[0016] Reference Figs. 1-2 Vertical partition type air supply pipe system capable of pre-distributing air volume of the utility model, including whole " L " type main air pipe 1, the vertical section of main air pipe 1 is vertically through ground stairwell 10 and underground stairwell 11, in one or more embodiments, ground stairwell 10 respectively has ground one layer 101, ground two layers 102, ground three layers 103 …… Ground N layer 10N of ground stairwell 10;The side of main air pipe 1 facing ground stairwell 10 is provided with ground stairwell air supply outlet 8 corresponding to the floor needing ventilation, the side of main air pipe 1 facing underground stairwell 11 is provided with underground stairwell air supply outlet 9 corresponding to the floor needing ventilation, the first partition plate 2 of the vertical section of main air pipe 1 is divided into first partition type cavity 6 and second partition type cavity 7 along the longitudinal direction, wherein, first partition type cavity 6 is communicated with underground stairwell air supply outlet 9, second partition type cavity 7 is communicated with ground stairwell air supply outlet 8.

[0017] The bottom of the second partitioned cavity 7 is flush with the ground of the first floor 101, and the first partitioned cavity 6 extends into each floor of the underground stairwell 11. The underground stairwell air supply vents 9 and the ground stairwell air supply vents 8 face the stairwell. In one or more embodiments, the horizontal depth of the first partitioned cavity 6 is smaller than the horizontal depth of the second partitioned cavity 7.

[0018] The top of the partition plate 2 is located at the turning point of the top of the main air duct 1. A rotating shaft 5 is provided on the top of the partition plate 2. A coaxially arranged rotating cylinder 4 is sleeved on the rotating shaft 5. In one or more embodiments, an angle scale is provided on the rotating cylinder 4; an adjustable partition 3 is provided on the outer wall of the rotating cylinder 4 along the axial direction.

[0019] There is one floor between the floors where the air outlets 8 of the adjacent ground stairwells are located. Figs. 1-2 As shown, the air supply vents 8 in the above-ground stairwell are respectively arranged on the first floor 101, the third floor 103, ... the Nth floor 10N.

[0020] The size of the main air duct 1 is determined by the sum of the pressurized air supply volume of the above-ground stairwell 10 and the underground stairwell 11. The first partitioned cavity 6 serves the underground stairwell 11, and the size of the first partitioned cavity 6 is determined by the pressurized air supply volume of the underground stairwell 11. The second partitioned cavity 7 serves the above-ground stairwell 10, and the size of the second partitioned cavity 7 is determined by the pressurized air supply volume of the above-ground stairwell 11. The width of the first partitioned cavity 6 and the second partitioned cavity 7 is the same as the width of the main air duct 1. The sum of the overall heights of the first partitioned cavity 6 and the second partitioned cavity 7 superimposed together is the same as the height of the main air duct 1. In order to achieve the initial pre-distribution of the air volume of each cavity in accordance with industry specifications, the horizontal depth of the first partitioned cavity 6 is smaller than the horizontal depth of the second partitioned cavity 7. Adjustable baffle 3 is fixed to a rotating drum 4 with an angle scale, which is connected to a rotating shaft 5. Rotating the drum 4 drives the adjustable baffle 3 to adjust the flow path of airflow through the two cavities, achieving initial pre-distribution of airflow between the two separated cavities to meet the airflow requirements of the above-ground stairwell 10 and the underground stairwell 11. The number and size of air outlets in the above-ground stairwell 10 and the underground stairwell 11 are set according to regulatory requirements.

[0021] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

[0022] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A vertically divided air supply duct system capable of pre-distributing air volume, comprising a main air duct (1) in an inverted "L" shape as a whole, wherein a vertical section of the main air duct (1) vertically passes through a ground stairwell (10) and an underground stairwell (11), wherein a side of the main air duct (1) facing the ground stairwell (10) is provided with a ground stairwell air supply outlet (8) corresponding to a floor requiring ventilation, and a side of the main air duct (1) facing the underground stairwell (11) is provided with an underground stairwell air supply outlet (9) corresponding to a floor requiring ventilation, characterized in that: A partition plate (2) is provided in the main air duct (1) along the longitudinal direction, which divides the vertical section of the main air duct (1) into a first partitioned cavity (6) and a second partitioned cavity (7), wherein the first partitioned cavity (6) is connected to the air supply outlet (9) of the underground stairwell, and the second partitioned cavity (7) is connected to the air supply outlet (8) of the above-ground stairwell.

2. The vertically divided air supply duct system capable of pre-distributing air volume according to claim 1, characterized in that: The bottom of the second partitioned cavity (7) is flush with the ground of the first floor (101), the first partitioned cavity (6) extends into each floor of the underground stairwell (11), and the underground stairwell air supply vent (9) and the above-ground stairwell air supply vent (8) face the stairwell.

3. The vertically divided air supply duct system capable of pre-distributing air volume according to claim 2, characterized in that: The horizontal depth of the first partitioned cavity (6) is smaller than the horizontal depth of the second partitioned cavity (7).

4. The vertically divided air supply duct system capable of pre-distributing air volume according to claim 3, characterized in that: The top of the partition plate (2) is located at the turning point of the top of the main air duct (1). A rotating shaft (5) is provided on the top of the partition plate (2). A coaxially arranged rotating cylinder (4) is sleeved on the rotating shaft (5). An adjustable partition plate (3) is provided on the outer wall of the rotating cylinder (4) along the axial direction.

5. The vertically divided air supply duct system capable of pre-distributing air volume according to claim 4, characterized in that: An angle scale is provided on the rotating cylinder (4).

6. The vertically divided air supply duct system capable of pre-distributing air volume according to claim 5, characterized in that: The floors where the air supply vents (8) of adjacent ground stairwells are located are separated by one floor.

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