CN2374600Y

CN2374600Y - Double reversing-proof smoke duct for house

Info

Publication number: CN2374600Y
Application number: CN 99228389
Authority: CN
Inventors: 邰志春
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-18
Filing date: 1999-05-18
Publication date: 2000-04-19
Anticipated expiration: 2009-05-18

Abstract

The utility model discloses a double non-return fume gas channel for houses, which is mainly characterized in that a main fume channel is provided with two non-return valves, and an upper and a lower reinforced clamping plates can be added. The utility model with the advantages of simple structure and convenient manufacture can effectively prevent taint of smells and air return and reduce the air pollution of kitchens or toilets.

Description

The dual non-return flue of dwelling house flue gas

The utility model relates to a kind of multilayer or the vertical common exhaust duct of high-rise residential building.

The prefabricated component pipeline that present multilayer of generally using or high residential building building flue gas exhaust pipeline are mainly guide board structure promptly is typical this a kind of structure flue as CN992210281.3 utility model patent disclosed " the prefabricated ventilation stack of a kind of guide type ".The main deficiency of above-mentioned prior art is can not stop flue gas to pour in down a chimney, and easily produces the return air of collaborating, and pollutes kitchen or washroom air.

The purpose of this utility model provides a kind of simple in structure, the dual non-return flue of the return air that can effectively prevent to collaborate.

The utility model is made up of the check (non-return) valve 2 of flue collector 1 and flue collector 1 outer wall, also is provided with check (non-return) valve 4 in the flue collector 1, and the upper sealing panel 3 and the lower seal plate 3 ' that surround enclosure space are arranged between check (non-return) valve 2 and the check (non-return) valve 4.The bottom of check (non-return) valve 4 also can be set up and vertically strengthen clamping plate 5 down.Non-return top and the bottom to valve 4 also can be set up simultaneously and strengthen clamping plate 5 ' and strengthen clamping plate 5 down.

Because flue of the present utility model is provided with two check (non-return) valves, fall the necessary priority of string through in the just possible inlet chamber of two check (non-return) valves in case enter the interior flue gas of flue, pour in down a chimney so can effectively prevent the flue gas in the flue collector, avoid collaborating, reduce the air pollution of kitchen or washroom.

Accompanying drawing 1 is the utility model example structure schematic diagram.

The utility model embodiment is used for kitchen exhaust gas, and flue collector 1 can be with making such as anti-frame network folder cloth and cement, and cross section is 250 * 300mm, and the about 3m of length is decided by story height.Check (non-return) valve 2 is fixed on the outer wall of flue collector 1, can connect the exhaust duct of range hood, and upper sealing panel 3 and lower seal plate 3 ' are formed the space of geometry sealing again in order to fixing check (non-return) valve 4 with two check (non-return) valves.The oil smoke that range hood is extracted out enters flue collector 1 by two superinverse valves, if the taint of odour of lower floor's flue generation is arranged in the flue collector 1 or return cigarette, stops because of managing the dual of interior two check (non-return) valves, can not enter the kitchen through check (non-return) valve 2.Can set in the flue collector 1 and strengthen clamping plate 5 ' and last reinforcement clamping plate 5, to increase flue intensity or convenient old flue transformation.

Claims

1, a kind of dual non-return flue of forming by the check (non-return) valve (2) of flue collector (1) and flue collector (1) outer wall of dwelling house flue gas, it is characterized by and be provided with check (non-return) valve (4) in the flue collector (1), upper sealing panel (3) and the lower seal plate (3 ') that surrounds enclosure space arranged between check (non-return) valve (2) and the check (non-return) valve (4).

2,, it is characterized by check (non-return) valve (4) bottom and be provided with vertically reinforcement clamping plate (5) down by the dual non-return flue of the described a kind of dwelling house flue gas of claim 1.

3,, it is characterized by check (non-return) valve (4) top and be provided with vertically upward reinforcement clamping plate (5 ') by claim 1, the dual non-return flue of 2 described a kind of dwelling house flue gases.