CN201972378U

CN201972378U - Variable pressure draught flue

Info

Publication number: CN201972378U
Application number: CN201120033262XU
Authority: CN
Inventors: 冯勋俭
Original assignee: Zibo High & New Technology Industrial Development Zone Jinxia Building Materials Plant
Current assignee: Zibo High & New Technology Industrial Development Zone Jinxia Building Materials Plant
Priority date: 2011-01-30
Filing date: 2011-01-30
Publication date: 2011-09-14
Anticipated expiration: 2021-01-30

Abstract

The utility model relates to a variable pressure draught flue, which comprises a main pipeline. The variable pressure draught flue is characterized in that a variable pressure plate is arranged in the main pipeline and is installed on the pipe wall above an air inlet of the main pipeline, and the air inlet is provided with a semi-open check valve and a guide pipe; the air inlet is surrounded by the guide pipe; and the guide pipe is in a shovel-shaped structure with an upward opening. When the variable pressure draught flue pours smoke and fume, an air door rotates to the inner side of the air inlet of the main pipeline under the action of wind forces, so the smoke and fume enters into the main pipeline through an inner cavity through hole; the guide pipe can play a role of flow guiding, the variable pressure plate can increase the flow velocity of air current near the opening of the guide pipe, and therefore the smoke and fume just expelled from the opening of the guide pipe is taken away; after exhausting is finished, the air door falls back to a barrier under the action of force of gravity, so the inner cavity through hole is closed; and due to the barrier, the smoke and fume can not return into the room of a user. With simple structure, the variable pressure draught flue effectively reduces the air moving phenomena.

Description

The pressure swing type exhaust uptake

Technical field

The utility model relates to a kind of pressure swing type exhaust uptake, particularly a kind ofly is used for the pressure swing type exhaust uptake that all kinds of dwelling houses discharging flue gases are used.

Background technology

At present, usually use exhaust uptake to come flue gas is discharged in all kinds of dwelling houses, each resident family is drained into indoor flue gas in the trunk line respectively by the air inlet port on the trunk line, concentrate by trunk line again and discharge, but in use, may occur that the flue gas on upper strata is counter goes into the indoor phenomenon of resident family of lower floor, when wind is big, flue gas also may occurs and go into the indoor phenomenon of upper strata resident family from lower floor is counter.

The utility model content

According to above deficiency of the prior art, the technical problems to be solved in the utility model is: a kind of above-mentioned defective that solved is provided, can effectively prevents the pressure swing type exhaust uptake of collaborating mutually between the exhaust uptake.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of pressure swing type exhaust uptake, comprise trunk line, it is characterized in that: be provided with variable-pressure plate in the trunk line, variable-pressure plate is installed on the tube wall of air inlet port top of trunk line, the air inlet port place is equipped with the semi-open type flap valve, the air inlet port place also is provided with guide pipe, and guide pipe is enclosed in the air inlet port place, and guide pipe is the scoop structure that opening makes progress.

The opening direction of guide pipe is identical with the smoke evacuation direction of trunk line, helps the discharge of flue gas.

Described variable-pressure plate is that cross section is the variable-pressure plate of arcuate structure.

Described semi-open type flap valve comprises housing and is positioned at the intracavity through hole in housing centre position, be provided with valve block in the intracavity through hole, the both sides of valve block are fixed on the housing on intracavity through hole top by rotating shaft, the first half of valve block is a stator, stator is fixedly connected on the housing, and the latter half of valve block is an air door, and air door flexibly connects by rotating shaft, the periphery of intracavity through hole is provided with catch, and air door is positioned at the side of catch towards the air inlet port inboard.

During the discharging flue gas, under the wind-force effect, air door rotates to the inboard of trunk line air inlet port, make flue gas enter into trunk line by intracavity through hole, guide pipe can play guide functions, variable-pressure plate can be so that near the air-flow velocity the opening of guide pipe strengthens, thereby take away the flue gas of just having discharged by the opening of guide pipe, after exhaust finished, under action of gravity, air door fell after rise to the catch place, make the intracavity through hole closure, and because the existence of catch, make flue gas can not anti-access customer indoor, further reduced the generation of the phenomenon of collaborating.

The beneficial effect that the utility model had is: the pressure swing type exhaust uptake is when the discharging flue gas, under the wind-force effect, air door rotates to the inboard of trunk line air inlet port, make flue gas enter into trunk line by intracavity through hole, guide pipe can play guide functions, variable-pressure plate can be so that near the air-flow velocity the opening of guide pipe strengthens, thereby take away the flue gas of just having discharged, after exhaust finishes, under action of gravity by the opening of guide pipe, air door falls after rise to the catch place, make the intracavity through hole closure, and because the existence of catch, make flue gas can not anti-access customer indoor, simple in structure, effectively reduced the generation of the phenomenon of collaborating.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of semi-open type flap valve.

Among the figure: 1, trunk line; 2, variable-pressure plate; 3, guide pipe; 4, housing; 5, rotating shaft; 6, stator; 7, air door; 8, catch.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described further:

Shown in Fig. 1～2, be provided with variable-pressure plate 2 in the trunk line 1, variable-pressure plate 2 is installed on the tube wall of top of air inlet port, the air inlet port place of trunk line 1 is equipped with the semi-open type flap valve, the air inlet port place of trunk line 1 also is provided with guide pipe 3, guide pipe 3 is enclosed in the air inlet port place, and the scoop structure that guide pipe 3 makes progress for opening, variable-pressure plate 2 are the variable-pressure plate 2 of arcuate structure for cross section.

The semi-open type flap valve comprises housing 4 and is positioned at the intracavity through hole in housing 4 centre positions, be provided with valve block in the intracavity through hole, the both sides of valve block are fixed on the housing 4 on intracavity through hole top by rotating shaft 5, the first half of valve block is a stator 6, stator 6 is fixedly connected on the housing 4, and the latter half of valve block is an air door 7, and air door 7 flexibly connects by rotating shaft 5, the periphery of intracavity through hole is provided with catch 8, and air door 7 is positioned at the side of catch 8 towards the air inlet port inboard.

During the discharging flue gas, under the wind-force effect, air door 7 rotates to the inboard of trunk line 1 air inlet port, make flue gas enter into trunk line 1 by intracavity through hole, guide pipe 3 can play guide functions, variable-pressure plate 2 can be so that near the air-flow velocity the opening of guide pipe 3 strengthens, thereby take away the flue gas of just having discharged by the opening of guide pipe 3, after exhaust finished, under action of gravity, air door 7 fell after rise to catch 8 places, make the intracavity through hole closure, and because the existence of catch 8, make flue gas can not anti-access customer indoor, further reduced the generation of the phenomenon of collaborating.

Claims

1. pressure swing type exhaust uptake, comprise trunk line, it is characterized in that: be provided with variable-pressure plate in the trunk line, variable-pressure plate is installed on the tube wall of air inlet port top of trunk line, the air inlet port place is equipped with the semi-open type flap valve, the air inlet port place also is provided with guide pipe, and guide pipe is enclosed in the air inlet port place, and guide pipe is the scoop structure that opening makes progress.

2. pressure swing type exhaust uptake according to claim 1 is characterized in that: described variable-pressure plate is that cross section is the variable-pressure plate of arcuate structure.

3. pressure swing type exhaust uptake according to claim 1, it is characterized in that: described semi-open type flap valve comprises housing and is positioned at the intracavity through hole in housing centre position, be provided with valve block in the intracavity through hole, the both sides of valve block are fixed on the housing on intracavity through hole top by rotating shaft, the first half of valve block is a stator, stator is fixedly connected on the housing, the latter half of valve block is an air door, air door flexibly connects by rotating shaft, the periphery of intracavity through hole is provided with catch, and air door is positioned at the side of catch towards the air inlet port inboard.