CN200979172Y

CN200979172Y - Wind power smoke exhauster

Info

Publication number: CN200979172Y
Application number: CN 200620119594
Authority: CN
Inventors: 黄贞秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-16
Filing date: 2006-07-16
Publication date: 2007-11-21
Anticipated expiration: 2016-07-16

Abstract

The utility model relates to a pneumatic smoke discharging device which utilizes the wind power for preventing the smoke gas regorging of a flue water heater and a combustor, which is caused by wind. The device comprises a discharge flue (1), a lower flow guiding ring (2), a cone cartridge with the upper mouth smaller than the lower mouth (3), a support rod (4) and an upper flow guiding plate (5). When the wind is blowing, the air flow enters the space between the upper flow guiding plate and the lower flow guiding ring and forms an upwardly inclining angle with the horizon to flow forward due to the guide of the cone cartridge (3). A negative pressure area is formed above the smoke flue mouth due to the quickened velocity of flow caused by the reduction of the sectional area, the resistance for the rising of the smoke gas is reduced, and the adhesion among the gas molecules enables the air flow to take away the smoke gas, thereby avoiding the smoke gas regorging caused by wind.

Description

The wind-force fume extractor

Under technology neck or

The utility model is a device about utilizing wind-force to discharge fume.

Background technology

At present, the water heater of known using gases fuel, liquid fuel and the fume exhausting type of burner are divided into two kinds: a kind of is forced-ventilated, the air of burning usefulness boosts with pressure fan and gas fume after burning is boosted with air exhauster, thereby make gas fume after burning obtain the energy of discharging, the shortcoming of this mode is to want consumed power.Another kind is chimney flue type smoke evacuation, does not use blower fan, and flue gas directly enters atmosphere by flue, and the shortcoming of this mode is to run into the weather of blowing counter blow and strong wind flue gas can take place flow backwards, and causes that combustion flame extinguishes with personnel to poison.

Summary of the invention

In order to economize on electricity and to overcome the water heater of chimney flue type smoke evacuation and burner because of blowing the problem that counter blow and strong wind cause that flue gas flows backwards, the utility model provides a kind of wind-force fume extractor, and it can utilize wind-force to help to discharge fume, needn't consumed power.

The technical scheme that the utility model adopted is: the big awl tube that tapering is arranged of young end opening on overlapping in the end of smoke exhaust pipe, an awl size suitable for reading is identical with smoke exhaust pipe end physical dimension.Fix a baffle upper plate in smoke exhaust pipe end upper horizontal, the following baffle liner of a horizontal positioned of cover on smoke exhaust pipe, and the plane is close to an awl tin end opening and is fixed on the smoke exhaust pipe outer wall it on.When blowing, no matter air-flow enters space between baffle upper plate and the following baffle liner from that direction level, air-flow forms angular flow upwards through smoke exhaust pipe end superjacent air space through the guiding and the horizontal direction of baffle upper plate, following baffle liner and awl tube curved surface, can not flow backwards downwards along smoke exhaust pipe, and, because flow area reduces flow velocity and increases, above the smoke exhaust pipe outlet, form a negative pressuren zone, thereby reduce the resistance that flue gas rises, add the adhesive attraction between the gas molecule, flue gas is just taken away by air.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a profilograph of the present utility model.

1. smoke exhaust pipes among the figure 2. descend baffle liner, 3. awl tube, 4. support bar, 5. baffle upper plate, 6. flue gas, 7. wind direction.

The specific embodiment

Among Fig. 1, one in the upper end cover of vertical smoke exhaust pipe (1) is gone up the big awl tube (3) that tapering is arranged of young end opening, the upper port plane of awl tube (3) is parallel with bed, awl tube size suitable for reading is identical with smoke exhaust pipe end physical dimension, smoke evacuation mouth of pipe top is inserted in smoke exhaust pipe (1) and is close to the end opening of awl tube (3) with support bar (a 4) baffle upper plate of horizontal fixed (5), following baffle liner (2) level.Smoke exhaust pipe (1), following baffle liner (2), awl tube (3), support bar (4) and baffle upper plate (5) are fixing as a whole.

The high H of awl tube is preferably 0.5 to 2 times of smoke exhaust pipe diameter.Crossing the plane of smoke exhaust pipe central axis and the straight line of awl tube surface intersection and the angle theta on following baffle liner (2) plane, place is preferably between 15 ° to 60 °.The size of baffle upper plate should and equal and less than the following size of baffle liner outer rim greater than the size of the smoke evacuation mouth of pipe, the vertical range N on baffle upper plate and smoke evacuation plane, mouth of pipe place preferably equals 0.5 to 2 times of smoke exhaust pipe diameter, awl tube end opening outer rim under the distance L of baffle liner outer rim be preferably 0.2 to 2 times of smoke exhaust pipe diameter.

The utility model also can be used for the smoke evacuation of other gases, liquid and solid-fuelled chimney flue type combustion furnace.

Claims

1. wind-force fume extractor, smoke exhaust pipe (1), down baffle liner (2), awl tube (3), a support bar (4), baffle upper plate (5) connects along preface Even and fixing as a whole, it is characterized in that:

A. awl tube (3) has tapering, and it is big to go up young end opening, and size suitable for reading is identical with smoke evacuation mouth of pipe physical dimension, is placed in the end of vertical smoke exhaust pipe (1);

B. descend baffle liner (2) level to be inserted in smoke exhaust pipe (1), and be close to fixing with the end opening of awl tube (3);

C. baffle upper plate (5) is horizontally fixed on the top of smoke exhaust pipe (1) outlet.

2. wind-force fume extractor according to claim 1, the size that it is characterized by baffle upper plate (5) should and equal and less than the following size of baffle liner outer rim greater than the size of the smoke evacuation mouth of pipe.

3. wind-force fume extractor according to claim 1, the angle theta that it is characterized by the straight line of the plane of smoke exhaust pipe central axis and awl tube surface intersection and following baffle liner (2) plane, place is between 15 ° to 60 °.

4. wind-force fume extractor according to claim 1, the high H that it is characterized by the awl tube is 0.5 to 2 times of smoke exhaust pipe diameter.

5. wind-force fume extractor according to claim 1, the vertical range N that it is characterized by baffle upper plate and smoke evacuation plane, mouth of pipe place is 0.5 to 2 times of smoke exhaust pipe diameter.