CN2262172Y - Fire-proof dust reducing and smoke exhausting device - Google Patents

Abstract

The utility model relates to a smoke exhausting device for a cooking stove, particularly a fire-proof dust reducing and smoke exhausting device. The utility model is composed of an upper and a lower bent plates, a supporting column, smoke exhausting pipes, a rotational flow plate, a smoke blocking bent plate, a bottom plate, etc., wherein, a lower smoke pipe is arranged on the lower part of the bottom plate; the bottom plate is arranged on the bottom of an outer smoke exhausting pipe; a middle smoke exhausting pipe is arranged in the outer smoke exhausting pipe; the smoke blocking bent plate is connected with the middle smoke exhausting pipe; the rotational flow plate is arranged between smoke pipes formed by the middle smoke exhausting pipe and the outer smoke exhausting pipe. The utility model has the advantages that the structure is simple, fabrication is easy, the hidden danger of fire hazard caused by flame in a chimney is eliminated, and pollution is reduced; the utility model is product matched with chimneys of stoves and ranges for industrial and mining establishments and families.

Description

A kind of fire prevention depositing dust fume extractor

The utility model relates to the fume extractor of stove, kitchen range, specifically, is a kind of fire prevention depositing dust fume extractor.

At present, the production of enterprises and institutions and people's lives still have fuel employing coal greatly, timber, careless standing grain etc. with stove.And in the discharging flue gas system, generally lack firebreak device.In fuel combustion process, a large amount of Mars are discharged with flue gas, and especially at northern area, the spring and autumn wind speed is big, and level Four is longer with the windward time, and the fire that splashes and cause because of spark in the flue gas happens occasionally, and cause heavy economic losses for country and individual.Simultaneously, a large amount of flue gas and unburned completely fuel also caused very big pollution to environment.At present, also there is not good product to solve the problems referred to above on the market.

The utility model is exactly to be the solution the deficiencies in the prior art, and provides a kind of simple in structure, the good a kind of fire prevention depositing dust fume extractor of fire prevention dust-laying effect.

The utility model is achieved in that the utility model adopts maze-type structure, flue gas is by flowing to retaining cigarette bent plate in the lower smoke tube, the part soot dust granule crashed diminish, the part soot dust granule will be because the gravity effect will be returned the chimney bottom, the residue flue gas shunting is to the eddy flow plate that certain lift angle is arranged, flue gas stream upwards flows along the rotation of eddy flow plate, increased flue gas stream and arched this moment, make flue gas and outer smoke exhaust pipe friction carrying out heat exchange, cause flue gas stream to reduce exhaust gas temperature, outer smoke exhaust pipe and flows outside air carry out heat exchange, take away the part heat, reduce outer smoke exhaust pipe temperature, degree wind-force then causes flow of flue gas to add the quick-action rotational flow when big, increased heat exchange area, flue gas stream upwelling downward bent plate in cooling back flows to by middle smoke exhaust pipe and to go up behind the smoke exhaust pipe to last, between the following bent plate, flow to space outerpace then, finish cooling, thereby reach the purpose of fire prevention depositing dust.By learning in the aerodynamics, will produce negative pressuren zone at upper and lower curved slab top, form zone of positive pressure in the smoke pipe, add the flow speed and direction negative pressuren zone to cause zone of positive pressure flue gas stream, and produce draft, therefore overcome cigarette resistance in the labyrinth structure, make better burning in the stove and accessory.

The utility model is simple in structure, has overcome chimney and has emitted Mars to cause the hidden danger of fire easily, has reduced flue dust simultaneously, makes fuel combustion more complete, has also reduced the pollution of flue dust to surrounding environment.It is a kind of suitable industrial and mineral enterprises and institutions and civilian and stove, the matching used product of kitchen range chimney.

Below in conjunction with accompanying drawing, describe the utility model in detail.

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

Fig. 2 is the A-A cutaway view of Fig. 1.

Can learn from the following drawings, the utility model is by last bent plate (1), pillar (2), drainpipe (3), following bent plate (4), last smoke exhaust pipe (5), outer smoke exhaust pipe (6), middle smoke exhaust pipe (7), eddy flow plate (8), retaining cigarette bent plate (9), base plate (10), lower smoke tube compositions such as (11), wherein lower smoke tube (11) is in the bottom of base plate (10), base plate (10) is the bottom of smoke exhaust pipe (6) outside, in smoke exhaust pipe (7) outside in the smoke exhaust pipe (6), retaining cigarette bent plate (9) is connected on the middle smoke exhaust pipe (7), eddy flow plate (8) middle smoke exhaust pipe (7) and outside between the formed flue of smoke exhaust pipe (6), following bent plate (4) is connected with outer smoke exhaust pipe (6) with last smoke exhaust pipe (5), the middle upper portion of last smoke exhaust pipe (5) and middle smoke exhaust pipe (7).Last bent plate (1) is connected with following bent plate (4) by 3 pillars (2), and a drainpipe (3) is arranged on the last bent plate (1).

The manufacturing material and can adopt A3 iron plate of this product, or the metal material of other good heat dissipation effect.

Claims (4)

1, a kind of fire prevention depositing dust fume extractor is by last bent plate, pillar, drainpipe, following bent plate, last smoke exhaust pipe, outer smoke exhaust pipe, middle smoke exhaust pipe, eddy flow plate, retaining cigarette bent plate, base plate, compositions such as lower smoke tube, it is characterized in that the bottom of lower smoke tube at base plate, base plate is the bottom of smoke exhaust pipe outside, and middle smoke exhaust pipe is outside in the smoke exhaust pipe, during retaining cigarette bent plate is connected on the smoke exhaust pipe, the eddy flow plate middle smoke exhaust pipe and outside between the formed flue of smoke exhaust pipe, following bent plate is connected with outer smoke exhaust pipe with last smoke exhaust pipe.

2, device according to claim 1 is characterized in that the middle upper portion of smoke exhaust pipe at middle smoke exhaust pipe.

3, device according to claim 1 is characterized in that bent plate is connected with following bent plate by 3 pillars.

4, device according to claim 1 is characterized in that a drainpipe is arranged on the bent plate.

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