Guide changing exhausting channel

A technology of exhaust ducts and changing guide plates, applied in vertical pipes, building components, buildings, etc., can solve the problems of poor smoke exhaust, large system resistance, easy to be put on construction waste, etc., to ensure smoke exhaust performance, The effect of reducing internal static pressure and facilitating flue gas emission

Active Publication Date: 2013-10-16
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.

Method used

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  • Guide changing exhausting channel

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] Variable conduction exhaust duct structure, such as figure 1 , 2 5, it includes an exhaust duct 1 and a 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 arranged in the bottomless guide pipe 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 provided in the fire check valve 2. A valve disc 22 is provided in the fire check valve 2, and the valve disc 22 is connected to the valve body of the fire check valve 2 through a rebound device 4. The rebound device 4 is a tension spring 23. 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, and the connecting buckle 24 is connected to the valve body by a tension spring 23.

[0035] The bottom end of the valve plate 22 is hing...

Example Embodiment

[0039] Example 2

[0040] Variable conduction exhaust duct structure, such as figure 1 , 3 , 6, 8, 9, including an exhaust duct 1 and a 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 in the bottomless guide Inside the 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 provided in the fire check valve 2. When the valve plate 22 is opened, it blocks the lower opening of the bottomless guide tube 3. A valve disc 22 is provided in the fire check valve 2, and the valve disc 22 is connected to the valve body of the fire check valve 2 through a rebound device 4. The rebound device 4 includes a connecting rod 42 connected to the connecting buckle 24 provided on the valve plate 22, the connecting rod 42 is connected to the angular force spring 43 on the valve body of the fire check valv...

Example Embodiment

[0044] Example 3

[0045] Variable conduction exhaust duct structure, such as figure 1 , 4 7 shows an exhaust duct 1 and a fire check valve 2. The exhaust duct 1 is provided with a bottomless guide tube 3, and the air outlet of the fire check valve 2 is arranged in the bottomless guide tube 3.

[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 provided in the fire check valve 2. When the valve plate 22 is opened, it blocks the lower opening of the bottomless guide tube 3.

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

[0049] The bottomless guide tube 3 incl...

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Abstract

The invention relates to a residence kitchen toilet exhausting channel structure, and discloses a guide changing exhausting channel. The guide changing exhausting channel comprises an exhausting channel (1) and fireproofing back-pressure valves (2), wherein the exhausting channel (1) is internally provided with bottom-free guide pipes (3), and air outlets of the fireproofing back-pressure valves (2) are formed in the bottom-free guide pipes (3). The guide changing exhausting channel provided by the invention has the advantages that the bottom-free guide pipes are arranged on the guide changing exhausting channel, when the valve pieces of the fireproofing back-pressure valves of a starting floor are blew out so as to lean on bottom-free inverted trapezoidal guide pipes, the bottom-free guide pipes are changed with the guide pipe with the bottom, the flow area of the position smoke is effectively reduced, the smoke from the lower part floor can rise along the periphery of the guide pipe, a Venturi effect is generated, the interior static pressure of an air inlet is reduced, and the guide changing exhausting channel is beneficial for smoke discharge of the starting layer.

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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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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