Fire-fighting non-return ventilation pipeline

Abstract

The utility model relates to a fire-fighting non-return ventilation pipeline, which comprises an air supply component, a ventilation component and a control component, and is characterized in that the air supply component comprises an air supply pipe and an air port baffle; the two opposite sides of the bottom end of the air supply pipe are each provided with a protruding part in a downwards-protruding mode. The tuyere baffle comprises a baffle main body and side wings; the inner side of the baffle main body is matched and connected with the lug boss; an air supply outlet is formed between the side wings and the bottom end of the air supply pipe; the tuyere baffle is wider than the bottom end of the blast pipe; the connection assembly is connected to one end of the air supply assembly; the connection assembly comprises a connection pipe and an electric shutter; the pipe diameter of the connection pipe is smaller than that of the air supply pipe. The fire-fighting non-return ventilation pipeline is simple in structure and convenient to use, the air port baffle is connected to the bottom end of the air supply pipe, the electric louver is embedded in one end of the connection pipe, reverse airflow can be hindered through the synergistic effect of the air port baffle, the connection pipe and the electric louver, and the non-return effect of the pipeline is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting ventilation ducts, in particular to a fire-fighting backflow ventilation duct. Background Art

[0002] Ventilation ducts are metal or non-metallic pipes used in ventilation and air conditioning projects in industrial and residential buildings. Their primary function is to circulate air and reduce the concentration of harmful gases. They are a crucial component of ventilation systems, and different types of ventilation ducts can be designed and manufactured to achieve optimal ventilation, depending on the specific needs and usage environment.

[0003] However, if typical ventilation ducts lack a non-return function, they can become the primary pathway for fire spread during a fire. Smoke and hazardous gases generated by the fire can quickly spread through the ducts to other areas, severely impacting evacuation and firefighters' rescue efforts. Furthermore, these hazardous substances can pose a threat to personnel safety. Utility Model Content

[0004] Based on this, the utility model provides a fire-fighting backflow prevention ventilation duct with a simple structure and easy use. The bottom end of the air supply pipe is connected to an air outlet baffle, and an electric shutter is embedded in one end of the connecting pipe. Through the synergistic effect of the air outlet baffle, the connecting pipe and the electric shutter, the reverse airflow can be hindered, greatly improving the backflow prevention effect of the pipe.

[0005] In order to achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] A fire-fighting backflow prevention ventilation duct, comprising:

[0007] An air supply assembly includes an air supply pipe and an air outlet baffle connected to the bottom end of the air supply pipe; the bottom end of the air supply pipe is provided with a downwardly protruding protrusion on opposite sides thereof; the air outlet baffle includes a baffle body and side wings extending outwardly from opposite sides of the baffle body; the inner side of the baffle body is used to match the protrusion, and an air supply port is formed between the side wings and the bottom end of the air supply pipe; the width of the air outlet baffle is greater than the width of the bottom end of the air supply pipe; and

[0008] A connecting assembly connected to one end of the air supply assembly; the connecting assembly includes a connecting pipe connected to the top of the air supply pipe, and an electric blind embedded in the connecting pipe near one end of the air supply pipe; the diameter of the connecting pipe is smaller than the diameter of the air supply pipe.

[0009] The above-mentioned fire-fighting backflow prevention ventilation duct has a simple structure and is easy to use. The bottom end of the air supply pipe is connected to an air outlet baffle, and an electric shutter is embedded in one end of the connecting pipe. Through the synergistic effect of the air outlet baffle, the connecting pipe and the electric shutter, the reverse airflow can be hindered, greatly improving the backflow prevention effect of the pipeline.

[0010] In one embodiment, the side wings are arranged along a horizontal plane.

[0011] In one embodiment, the air supply assembly includes a partition plate installed inside the air supply pipe, and a plurality of adapter plates connected to opposite sides of the air supply pipe.

[0012] In one embodiment, the protrusion is arranged in a triangular shape.

[0013] In one embodiment, the baffle body is arranged in a V shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of a fire-fighting backflow ventilation duct according to an embodiment of the present invention;

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram of the fire protection return ventilation duct from another perspective is shown;

[0016] Figure 3 for Figure 1 The exploded diagram of the fire protection return ventilation duct shown;

[0017] Figure 4 for Figure 3 An exploded schematic diagram of the fire protection return ventilation duct from another perspective is shown;

[0018] Figure 5 for Figure 1 A cross-sectional view of the fire protection return ventilation duct shown;

[0019] Figure 6 for Figure 1 A side view of the fire protection return ventilation duct is shown.

[0020] Description of the accompanying drawings:

[0021] 10-air supply assembly, 11-air supply pipe, 110-protrusion, 12-partition plate, 13-air outlet baffle, 131-baffle body, 132-side wings, 14-adapter;

[0022] 20-Connecting assembly, 21-Connecting pipe, 22-Electric blinds. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0024] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0026] See also Figures 1 to 6 , which is a fire-fighting return ventilation duct according to an embodiment of the present invention, includes an air supply component 10 and a connecting component 20 connected to one end of the air supply component 10; the connecting component 20 is used to connect the main ventilation duct of the entire building.

[0027] The air supply assembly 10 includes an air supply pipe 11 , a partition plate 12 installed inside the air supply pipe 11 , an air outlet baffle 13 connected to the bottom end of the air supply pipe 11 , and a plurality of adapter plates 14 connected to opposite sides of the air supply pipe 11 .

[0028] Therein, two opposite sides of the bottom end of the air supply pipe 11 are respectively provided with triangular raised portions 110 protruding downwards, and the raised portions 110 are used to match and connect with the air outlet baffle 13 .

[0029] Specifically, the air outlet baffle 13 includes a V-shaped baffle body 131 and side wings 132 extending outward from opposite sides of the baffle body 131. The side wings 132 are arranged along a horizontal plane. The inner side of the baffle body 131 is designed to mate with the protrusion 110, and the air outlet is formed between the side wings 132 and the bottom end of the air supply pipe 11.

[0030] In this embodiment, if Figure 6 As shown, the width of the air vent baffle 13 is greater than the width of the bottom end of the air supply pipe 11, forcing the airflow to flow along the edge of the air vent baffle 13, changing the airflow path and causing it to flow out in a specific direction (i.e., the air supply port). This design plays a crucial role in preventing smoke from flowing backward into the interior of the air supply pipe 11. When a fire occurs, smoke attempting to reversely enter the air supply pipe 11 will be blocked by the air vent baffle 13, greatly enhancing the smoke's anti-return effect and effectively preventing the spread and diffusion of smoke.

[0031] The connecting assembly 20 includes a connecting pipe 21 connected to the top of the air supply pipe 11 and an electric shutter 22 embedded in the end of the connecting pipe 21 near the air supply pipe 11. The electric shutter 22 is used to open or close the connection between the connecting pipe 21 and the air supply pipe 11. In the event of a fire, the backend can immediately control the electric shutter 22 to close, thereby cutting off the connection between the connecting pipe 21 and the air supply pipe 11 and preventing the influx of smoke. This active control method not only improves pipeline safety, but also makes the entire system more flexible and efficient in responding to fires.

[0032] Specifically, if Figure 3 As shown, in this embodiment, the diameter of the connecting pipe 21 is smaller than that of the air supply pipe 11, resulting in greater resistance for the reverse-flowing smoke airflow as it passes through the connecting pipe 21. This resistance not only limits the reverse flow speed of the smoke airflow but also enhances the passive non-return effect of the pipe. Even without active control of the electric blinds, it can still provide a certain barrier to the reverse flow of the smoke airflow.

[0033] The above-mentioned fire-fighting backflow prevention ventilation duct has a simple structure and is easy to use. The bottom end of the air supply pipe 11 is connected to the air outlet baffle 13, and one end of the connecting pipe 21 is embedded with an electric shutter 22. Through the coordinated action of the air outlet baffle 13, the connecting pipe 21 and the electric shutter 22, the reverse airflow can be hindered, thereby greatly improving the non-return effect of the pipeline.

[0034] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A fire-fighting backflow ventilation duct, characterized in that: include: An air supply assembly includes an air supply pipe and an air outlet baffle connected to the bottom end of the air supply pipe; the bottom end of the air supply pipe is provided with a downwardly protruding protrusion on opposite sides thereof; the air outlet baffle includes a baffle body and side wings extending outwardly from opposite sides of the baffle body; the inner side of the baffle body is used to match the protrusion, and an air supply port is formed between the side wings and the bottom end of the air supply pipe; the width of the air outlet baffle is greater than the width of the bottom end of the air supply pipe; and A connecting assembly connected to one end of the air supply assembly; the connecting assembly includes a connecting pipe connected to the top of the air supply pipe, and an electric blind embedded in the connecting pipe near one end of the air supply pipe; the diameter of the connecting pipe is smaller than the diameter of the air supply pipe.

2. The fire-fighting return ventilation duct according to claim 1, characterized in that: The flanks are arranged along a horizontal plane.

3. The fire-fighting return ventilation duct according to claim 1, characterized in that: The air supply assembly includes a partition plate installed inside the air supply pipe and a plurality of adapter plates connected to opposite sides of the air supply pipe.

4. The fire-fighting return ventilation duct according to claim 1, characterized in that: The raised portion is arranged in a triangle shape.

5. The fire-fighting return ventilation duct according to claim 1, characterized in that: The baffle body is arranged in a V shape.

Images