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variable guide exhaust

A technology of exhaust duct and variable guide plate, which is applied in the direction of vertical pipes, building components, buildings, etc., can solve the problems of large system resistance, poor smoke exhaust, easy to be placed in construction waste, etc., to reduce internal static pressure, Guaranteed smoke exhaust performance, beneficial to the effect of smoke emission

Active Publication Date: 2016-08-24
HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the shortcomings of the public exhaust duct system in the prior art, such as large system resistance, easy to be placed in construction waste, poor smoke exhaust, etc., and provides a reasonable structure, simple and convenient installation, smooth smoke exhaust, and is not easy to be exhausted. Variable conduction exhaust duct structure for storing construction waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Variable guide exhaust structure, such as figure 1 , 2 , shown in 5, comprise exhaust channel 1 and fire check valve 2, described exhaust channel 1 is provided with bottomless guide tube 3, and the air outlet of fire check valve 2 is arranged in bottomless guide tube 3.

[0034] The bottomless guide pipe 3 is fixedly connected with the fire check valve 2. The fire check valve 2 includes an air inlet 21 , and a valve plate 22 is arranged inside the fire check valve 2 . The fire check valve 2 is provided with a valve plate 22, and the valve plate 22 is connected with the valve body of the fire check valve 2 through the rebound device 4. The rebound device 4 is a tension spring 23, and the bottom end of the valve plate 22 is hinged with the valve body of the fire check valve 2. The valve plate 22 is provided with a connecting buckle 24, which is connected by the tension spring 23 between the connecting buckle 24 and the valve body.

[0035] The bottom end of the valve p...

Embodiment 2

[0040] Variable guide exhaust structure, such as figure 1 , 3 , 6, 8, and 9, including the exhaust duct 1 and the fire check valve 2, the exhaust duct 1 is provided with a bottomless guide pipe 3, and the air outlet of the fire check valve 2 is set on the bottomless guide Inside tube 3.

[0041] The bottomless guide pipe 3 is fixedly connected with the fire check valve 2. The fire check valve 2 includes an air inlet 21 , and a valve plate 22 is arranged inside the fire check valve 2 . When the valve plate 22 is opened, the lower opening of the bottomless guide pipe 3 is blocked. The fire check valve 2 is provided with a valve plate 22, and the valve plate 22 is connected with the valve body of the fire check valve 2 through the rebound device 4. The rebound device 4 includes a connecting rod 42 connected with the connecting buckle 24 provided on the valve plate 22, the connecting rod 42 is connected with the angle spring 43 on the valve body of the fire check valve 2, and ...

Embodiment 3

[0045] Variable guide exhaust structure, such as figure 1 , 4 As shown in .

[0046] The bottomless guide pipe 3 is fixedly connected with the fire check valve 2.

[0047] The fire check valve 2 includes an air inlet 21 , and a valve plate 22 is arranged inside the fire check valve 2 . When the valve plate 22 is opened, the lower opening of the bottomless guide pipe 3 is blocked.

[0048] The bottom end of the valve plate 22 is hinged with the valve body of the fire check valve 2, and the valve plate 22 is provided with a connecting buckle 24, which is connected by a tension spring 23 between the connecting buckle 24 and the valve body. The valve plate 22 is an arc plate. The connecting buckle 24 is arranged in the middle of the valve plate 22 .

[0049] The bottomless guide pipe 3 includes two symmetrically arranged side plates 31, and a variable guide plate 32 arranged between the two side plates 31. The two side plates 31, the variable guide plate 32 and the inner wall...

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Abstract

The invention relates to an exhaust channel structure in a residential kitchen and bathroom, and discloses a variable conduction exhaust channel structure, which includes an exhaust channel (1) and a fireproof check valve (2). The exhaust channel (1) is equipped with There is a bottomless guide pipe (3), and the air outlet of the fire check valve (2) is arranged in the bottomless guide pipe (3). In the present invention, by setting the bottomless guide pipe, when the fire prevention check valve plate on the start-up floor is blown away and leans against the bottomless inverted trapezoidal guide pipe, the bottomless guide pipe is changed into a bottomed guide pipe, so that the smoke at this position The cross-section of the air flow is effectively reduced, so the smoke from the lower floors can only rise along the periphery of the guide pipe, resulting in a Venturi effect, which reduces the internal static pressure at the air inlet, and is conducive to the discharge of smoke from the start-up floor.

Description

technical field [0001] The invention relates to the structure of an exhaust duct in a residential kitchen and toilet, in particular to a structure of a variable conduction exhaust duct. Background technique [0002] The exhaust duct system of the residential kitchen and bathroom, during the peak cooking time, the actual operating condition is that multiple or even dozens of range hoods work in parallel. Since the 1990s, public exhaust ducts have been designed in residential buildings, and many standard design atlases have been released successively, ranging from national standards, ministry standards, and local standards. Some provinces even implement many design atlases with different specifications and models at the same time. Based on these standard atlases, it can be mainly divided into two types: variable pressure exhaust duct with internal components and straight exhaust duct. The variable pressure exhaust duct is fixed with a variable pressure plate and guide pipe, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04F17/02
Inventor 王启定叶如岳罗国伟
Owner HANGZHOU XIAOMI ENVIRONMENTAL SCI & TECH
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