Connection structure of core tube smoke exhaust system

Abstract

The utility model relates to a connection structure of a core tube smoke exhaust system, which comprises a core tube and a smoke exhaust vertical pipe arranged in the core tube, an annular horizontal smoke exhaust pipe is arranged around the peripheral side of the core tube, a plurality of smoke inlet structures are arranged on the outer side wall of the horizontal smoke exhaust pipe, and the horizontal smoke exhaust pipe is communicated with the smoke exhaust vertical pipe. The core tube building smoke exhaust system can reduce the indoor space occupied by the core tube building smoke exhaust system.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation and smoke exhaust construction, in particular to a connection structure of a core tube smoke exhaust system. Background Art

[0002] According to the requirements of the Technical Standard for Building Smoke Prevention and Exhaust Systems GB51251-2017, rooms that do not meet the conditions for natural ventilation and smoke exhaust need to be equipped with a mechanical smoke exhaust system.

[0003] For buildings with a core tube structure, when a mechanical smoke exhaust system is required in the rooms around each floor, the smoke exhaust duct is often large in size and will occupy more of the aisle area around the core tube and the height of the room. In particular, the horizontal smoke exhaust main pipes of the smoke exhaust duct often require a large width and height due to the large amount of smoke exhaust, and need to occupy a large amount of the net height of the indoor space. Utility Model Content

[0004] Based on the above description, the utility model provides a connection structure of a core tube smoke exhaust system to solve the problem that the setting of the core tube building smoke exhaust system occupies more indoor space.

[0005] The utility model solves the above-mentioned technical problems through the following technical solutions: a connecting structure of a core tube smoke exhaust system comprises a core tube and a smoke exhaust riser arranged in the core tube, an annular horizontal smoke exhaust pipe is arranged around the core tube, a plurality of smoke inlet structures are provided on the outer side wall of the horizontal smoke exhaust pipe, and the horizontal smoke exhaust pipe is connected to the smoke exhaust riser.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the smoke inlet structure comprises a first smoke exhaust branch pipe, on which a louver air outlet, a smoke exhaust valve and a first smoke exhaust fire damper are sequentially arranged in a direction close to the horizontal smoke exhaust pipe.

[0008] Furthermore, a smoke outlet structure is provided between the horizontal smoke exhaust pipe and the smoke exhaust riser for discharging smoke in the horizontal smoke exhaust pipe into the smoke exhaust riser, and the inner wall of the horizontal smoke exhaust pipe is connected to the smoke outlet structure.

[0009] Furthermore, the smoke exhaust structure includes a second smoke exhaust branch pipe, a second smoke exhaust fire damper is installed on the second smoke exhaust branch pipe, and the second smoke exhaust branch pipe is connected to the smoke exhaust riser.

[0010] Furthermore, the horizontal smoke exhaust pipe includes multiple sections of ventilation pipes and multiple three-way pipes, and the three-way pipes are used to connect two adjacent sections of the ventilation pipe and the first smoke exhaust branch pipe or the second smoke exhaust branch pipe.

[0011] Furthermore, the three-way pipe includes a middle pipe head and two side pipe heads for communicating with the ventilation pipe, and the two side pipe heads are symmetrically arranged on both sides of the middle pipe head.

[0012] Furthermore, the edge pipe head is an arc-shaped curved pipe, and the radius of curvature is greater than 1.

[0013] Furthermore, each floor of the building is provided with a plurality of smoke-proof partitions, and each smoke-proof partition is provided with at least one smoke inlet structure.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0015] 1. The present application sets a circular horizontal smoke exhaust pipe, so that after the smoke enters the horizontal smoke exhaust pipe from the smoke inlet structure, it can flow in two directions in the horizontal smoke exhaust pipe and converge into the smoke exhaust riser, so as to improve the exhaust efficiency, thereby reducing the height of the horizontal smoke exhaust pipe and increasing the indoor clearance;

[0016] 2. The three-way pipe of the present application includes a middle pipe head and two symmetrically arranged side pipe heads, which can make the smoke enter the horizontal smoke exhaust pipe from the smoke inlet structure, and then be more evenly dispersed to both sides of the three-way pipe and flow along the horizontal smoke exhaust pipe to converge into the smoke exhaust riser;

[0017] 3. The smoke inlet structure includes louvered vents, which is convenient for interior design and decoration. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic plan view of a connection structure of a core tube smoke exhaust system provided by the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Core tube; 2. Smoke exhaust riser; 3. Horizontal smoke exhaust pipe; 31. Ventilation pipe; 32. Tee pipe; 321. Middle pipe head; 322. Side pipe head; 4. Smoke inlet structure; 41. First smoke exhaust branch pipe; 42. Louver air outlet; 43. Smoke exhaust valve; 44. First smoke exhaust fire damper; 5. Smoke outlet structure; 51. Second smoke exhaust branch pipe; 52. Second smoke exhaust fire damper. DETAILED DESCRIPTION

[0021] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0023] A connection structure of a core tube smoke exhaust system, referring to Figure 1 , including a core tube 1, a smoke exhaust riser 2 is constructed inside the core tube 1, and the smoke exhaust demand of multiple floors of the building is achieved through the smoke exhaust riser 2. Each floor is provided with a circular horizontal smoke exhaust pipe 3, which is arranged around the core tube 1 and hoisted on the top plate of the floor.

[0024] A plurality of smoke inlet structures 4 are arranged on the outer side wall of the horizontal smoke exhaust pipe 3. Specifically, each floor of the building is divided into a plurality of smoke-proof partitions, and each smoke-proof partition is provided with at least one smoke inlet structure 4; a smoke outlet structure 5 is arranged on the inner side wall of the horizontal smoke exhaust pipe 3, and one end of the smoke outlet structure 5 is connected to the horizontal smoke exhaust pipe 3, and the other end is connected to the smoke exhaust riser 2.

[0025] When smoke appears in the building, the smoke can enter the horizontal smoke exhaust pipe 3 through the smoke inlet structure 4, and flow in two directions in the horizontal smoke exhaust pipe 3 and converge to the smoke exhaust riser 2 for discharge. The present application sets up a circular horizontal smoke exhaust pipe 3, so that smoke can flow from two directions and converge to the smoke exhaust riser 2, thereby improving the smoke exhaust efficiency of the horizontal smoke exhaust pipe 3, and making it possible to reduce the setting height of the horizontal smoke exhaust pipe 3, thereby reducing the occupation of the indoor space and increasing the actual net height of the building space.

[0026] In one embodiment, the smoke exhaust volume of the smoke inlet structure 4 in each smoke-proof partition is 15000m 3 / h, the horizontal smoke exhaust pipe 3 usually needs to be set to a size of 1250mmx400mm to meet the smoke exhaust requirements. At this time, the wind speed in the horizontal smoke exhaust pipe 3 is 16.67m / s. After the horizontal smoke exhaust pipe 3 is set around the core tube 1, the size of the horizontal smoke exhaust pipe 3 can be reduced to 1250mmx200mm, which is beneficial to the layout of the internal pipelines of the building and improves the actual net height of the building space.

[0027] Among them, the horizontal smoke exhaust pipe 3 includes multiple sections of ventilation pipes 31 and multiple three-way pipes 32, which are arranged at intervals and assembled to form an integral horizontal smoke exhaust pipe 3. The three-way pipe 32 is used to connect the smoke inlet structure 4 and the horizontal smoke exhaust pipe 3, or to connect the smoke outlet structure 5 and the horizontal smoke exhaust pipe 3.

[0028] Specifically, the smoke inlet structure 4 includes a first smoke exhaust branch pipe 41, the smoke outlet structure 5 includes a second smoke exhaust branch pipe 51, the three-way pipe 32 includes a middle pipe head 321 and two side pipe heads 322 symmetrically arranged on both sides of the middle pipe head 321, the side pipe head 322 is used to connect with the ventilation pipe 31, and the middle pipe head 321 is used to communicate with the first smoke exhaust branch pipe 41 or the second smoke exhaust branch pipe 51.

[0029] By setting two side pipe heads 322 symmetrically arranged along the middle pipe head 321, the smoke can be more evenly diverted to the two sides of the middle pipe head 321 after entering the three-way pipe 32, so that the smoke is evenly divided into two streams flowing in two directions along the horizontal smoke exhaust pipe 3 and converging into the smoke exhaust riser 2, thereby improving the smoke exhaust efficiency.

[0030] Among them, the side pipe head 322 is an arc-shaped curved pipe with a curvature radius greater than 1, thereby providing a smoother flow surface for the flow of smoke, so that the smoke can flow more smoothly along the three-way pipe 32 into the horizontal smoke exhaust pipe 3.

[0031] Furthermore, the first smoke exhaust branch pipe 41 is provided with a louver vent 42, a smoke exhaust valve 43 and a first smoke exhaust fire damper 44 in sequence in the direction close to the horizontal smoke exhaust pipe 3, and the louver vent 42 is a single-layer louver vent 42, which is simplified to only a single-layer louver vent 42 on the indoor ceiling, which is convenient for indoor modeling and decoration. The smoke exhaust valve 43 is usually in a closed state, and is used to automatically open when smoke appears to achieve smoke exhaust. The first smoke exhaust fire damper 44 can be a 280℃ smoke exhaust fire damper, which is used to close the valve when the temperature reaches the set temperature. The second smoke exhaust branch pipe 51 is equipped with a second smoke exhaust fire damper 52, which can also be a 280℃ smoke exhaust fire damper.

[0032] 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 connection structure of a core tube smoke exhaust system, characterized in that: The invention comprises a core tube (1) and a smoke exhaust riser (2) arranged in the core tube (1); an annular horizontal smoke exhaust pipe (3) is arranged around the core tube (1); a plurality of smoke inlet structures (4) are provided on the outer side wall of the horizontal smoke exhaust pipe (3); and the horizontal smoke exhaust pipe (3) is connected to the smoke exhaust riser (2).

2. The connection structure of the core tube smoke exhaust system according to claim 1 is characterized in that: The smoke inlet structure (4) comprises a first smoke exhaust branch pipe (41), on which a louver air outlet (42), a smoke exhaust valve (43) and a first smoke exhaust fire damper (44) are sequentially arranged in a direction close to the horizontal smoke exhaust pipe (3).

3. The connection structure of the core tube smoke exhaust system according to claim 2 is characterized in that: A smoke outlet structure (5) is provided between the horizontal smoke exhaust pipe (3) and the smoke exhaust riser (2) for discharging smoke in the horizontal smoke exhaust pipe (3) into the smoke exhaust riser (2); the inner wall of the horizontal smoke exhaust pipe (3) is connected to the smoke outlet structure (5).

4. The connection structure of the core tube smoke exhaust system according to claim 3 is characterized in that: The smoke exhaust structure (5) comprises a second smoke exhaust branch pipe (51), a second smoke exhaust fire damper (52) is installed on the second smoke exhaust branch pipe (51), and the second smoke exhaust branch pipe (51) is connected to the smoke exhaust riser (2).

5. The connection structure of the core tube smoke exhaust system according to claim 4 is characterized in that: The horizontal smoke exhaust pipe (3) comprises a plurality of sections of ventilation pipes (31) and a plurality of three-way pipes (32), wherein the three-way pipes (32) are used to connect two adjacent sections of ventilation pipes (31) and a first smoke exhaust branch pipe (41) or a second smoke exhaust branch pipe (51).

6. The connection structure of the core tube smoke exhaust system according to claim 5 is characterized in that: The three-way pipe (32) comprises a middle pipe head (321) and two side pipe heads (322) for communicating with the ventilation pipe (31), and the two side pipe heads (322) are symmetrically arranged on both sides of the middle pipe head (321).

7. The connection structure of the core tube smoke exhaust system according to claim 6, characterized in that: The edge pipe head (322) is an arc-shaped curved pipe, and the radius of curvature is greater than 1.

8. The connection structure of the core tube smoke exhaust system according to claim 1 is characterized in that: Each floor of the building is provided with a plurality of smoke-proof partitions, and each smoke-proof partition is provided with at least one smoke inlet structure (4).

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