CN107327860A - A kind of flue dustproof device and its method of work - Google Patents

Abstract

The invention discloses a kind of flue dustproof device and its method of work, including end cover, net gas intake valve, net gas venthole, separation frame, outer barrel and inner cylinder；Inner cylinder, which is placed in outer barrel, forms cylindrical drum, and end cover is arranged on the both sides connection inner cylinder and outer barrel of cylindrical drum；A plurality of net gas intake valves are arranged on outer barrel, and a plurality of net gas ventholes are arranged on inner cylinder；Net gas intake valve is connected with net gas venthole；Division rack is arranged on and a plurality of air chambers is formed between outer barrel and inner cylinder, and each air chamber includes a net gas intake valve and a plurality of net gas ventholes, and net gas venthole is the aperture of trapezoidal cone shape.The present invention passes through the inner surface one layer of air diaphragm of formation in inner cylinder so that the inner surface that will not touch inner cylinder by the dust among the flue gas of flue causes ash deposit and slag buildup, to reach the purpose of anti-gray deashing.

Description

A kind of flue dustproof device and its method of work

Technical field

Servicing unit is machined the present invention relates to one kind, especially a kind of flue dustproof device and its method of work.

Background technology

With expanding economy, country is also to advocate energetically to energy-saving and emission-reduction, therefore to prevent that dust is in flue in flue gas Middle deposition, typically require flue flue gas flow rate be 10 ~ 15 meter per seconds because cause specific must reduce flue gas flow rate to 7 meters/ Second or so, inevitably dust stratification is caused in flue, and if ash can be in cigarette when smoke moisture is big and cigarette temperature is less than acid dew point Fouling on road wallboard.Easy cleaning is not allowed after product fouling, service life is shortened, under operating efficiency.

Therefore, the present inventor makes further research to this, develops a kind of flue dustproof device and its method of work, this case Thus produce.

The content of the invention

The technical problems to be solved by the invention are to provide a kind of flue dustproof device and its method of work, can solve the problem that Problems of the prior art.

In order to solve the above technical problems, the technical solution of the present invention is：

A kind of flue dustproof device, including end cover, net gas intake valve, net gas venthole, separation frame, outer barrel and inner cylinder；It is interior Cylinder, which is placed in outer barrel, forms cylindrical drum, and end cover is arranged on the both sides connection inner cylinder and outer barrel of cylindrical drum；A plurality of net gas Intake valve is arranged on outer barrel, and a plurality of net gas ventholes are arranged on inner cylinder；Net gas intake valve is connected with net gas venthole；Point Frame is cut installed in a plurality of air chambers are formed between outer barrel and inner cylinder, each air chamber includes a net gas intake valve and a plurality of net Gas venthole, net gas venthole is the aperture of trapezoidal cone shape.

Further, net gas intake valve has appendix connection end, and appendix connection end exposes to the outer wall of outer barrel.

Further, in addition to seal washer, seal washer is arranged on the junction of net gas intake valve and outer barrel.

Further, aperture and inner cylinder are in 15 ° ~ 30 ° of angle.

Further, end cover is fixed with outer barrel by the way of seamless welding, is bolted with inner cylinder.

Further, the net gas air inlet valve position in each air chamber has tapered gas diffusion piece.

A kind of method of work of flue dustproof device, comprises the following steps:

Step one, when flue gas is flowed into from flue one end, clean gas is blown into by the net gas intake valve on outer barrel, Air pressure is formed in each air chamber；

Step 2, clean gas flows to inner cylinder by a plurality of net gas ventholes in air chamber, by trapezoidal cone shape aperture Act on the inner surface one layer of air diaphragm of formation of inner cylinder.

After such scheme, because the present invention by the net gas intake valve gathered in outer barrel sprays net gas into cylindrical drum, Because net gas venthole uses the small pore size distribution of trapezoidal cone shape, net gas is dissipated by the effect of net gas venthole to be caused entirely Inner cylindrical surface can form a layer of air diaphragm so that ash will not the fouling on wall panel, effectively improve operating efficiency, prolong The long products life-span.

Brief description of the drawings

Fig. 1 is the internal structure schematic diagram of the present invention；

Fig. 2 is the surface texture schematic diagram of the present invention；

Fig. 3 is the stomata shape and outlet schematic diagram of the net gas venthole of the present invention；

Fig. 4 is Fig. 2 partial enlarged drawing；

Fig. 5 is the schematic diagram of the tapered gas diffusion piece of the present invention.

Label declaration

The net gas intake valve 2 of 1 bolt hole of end cover 11

The net outer barrel 4 of gas venthole 3 of the tapered gas diffusion piece 22 in appendix connection end 21

The separation frame 7 of 5 seal washer of inner cylinder 6.

Embodiment

The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.Disclosed is a kind of flue Dustproof device, is presently preferred embodiments of the present invention as depicted in figs. 1 and 2, including end cover 1, net gas intake valve 2, net gas go out Stomata 3, outer barrel 4, separation frame 7 and inner cylinder 5.

Inner cylinder 5, which is placed in outer barrel 4, forms cylindrical drum, and end cover 1 is arranged on the both sides of cylindrical drum, and is symmetrically distributed in Both sides, so that inner cylinder 5 and outer barrel 4 are connected.Simultaneously, it is ensured that cylindrical drum will not gas leakage.

A plurality of net gas intake valves 2 are arranged on outer barrel 4, and a plurality of net gas ventholes 3 are arranged on inner cylinder 5；Net gas enters Air valve 2 is connected with net gas venthole 3.Net gas is sprayed into cylindrical drum by the net gas intake valve 2 gathered in outer barrel 4.

Division rack 7 is arranged between outer barrel 4 and inner cylinder 5, and forms a plurality of air chambers between outer barrel 4 and inner cylinder 5, each Individual air chamber includes net a gas intake valve 2 and a plurality of net gas ventholes 3.The main function of air chamber is：First, rise in support The effect of wall punching net, second, after net gas intake valve 2 blows into gas, prevent from, because air pressure everywhere is different, excessively disperseing to blow into The effect of gas, reduces effect.As shown in figure 5, having gas diffusion piece 22, gas at net gas intake valve 2 in each air chamber Body diffusion sheet 22 helps each indoor gas to be uniformly dispersed, and is unlikely to fiercely to cause gas directly to blow from part mesh because blowing Go out, this ensure that the inwall pressure of flue is everywhere relative to stable and uniform.

Further, as shown in figure 3, net gas venthole 3 is the aperture of trapezoidal cone shape, there is hair to the clean gas blown into Dissipate effect.Aperture has certain gradient, i.e. aperture and the angle that inner cylinder is in 15 ° ~ 30 °, rather than is put down with the wall of flue OK, the purpose for the arrangement is that because having a large amount of dusts in flue, dust is easier precipitation because flue be horizontal positioned without It is vertical placement, so the gas that the hole with certain gradient is produced by boasting contributes to gas flow in the horizontal direction, radially Direction helps to offset the gravity of dust, it is to avoid dust contacts wall.

Further, net gas intake valve 2 has appendix connection end 21, and appendix connection end 21 exposes to the outer wall of outer barrel 4. Clean gas is blown into by the tracheae being connected on appendix connection end 21.

Further, as shown in figure 4, also including seal washer 6, in order to prevent gas leakage, seal washer 6 is arranged on net gas air inlet The junction of valve 2 and outer barrel 4.

Further, end cover 1 is fixed with outer barrel 4 by the way of seamless welding, is bolted with inner cylinder 5. Inner side is distributed the corresponding bolt hole 11 of fixing bolt on end cover 1.

Interference in air flow dustproof device operation principle of the present invention is as follows：First, when flue gas is flowed into from flue one end, clean gas Body is blown into clean gas by the net gas intake valve 2 on outer barrel 4, connects in this embodiment by appendix is connected to The tracheae connect on end 21 is blown into, and air pressure is formed in each air chamber.Furthermore, because net gas venthole 3 is trapezoidal cone shape Aperture, inner surface of the gas by net gas venthole 3 in inner cylinder 5 forms a layer of air diaphragm so that pass through the flue gas of flue The inner surface that central dust will not touch inner cylinder 5 causes ash deposit and slag buildup, to reach the purpose of anti-gray deashing.

The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention, Therefore the change or modification that claim under this invention and specification are done in every case, it should all belong to the scope that patent of the present invention covers Within.

Claims (7)

1. a kind of flue dustproof device, it is characterised in that：Including end cover, net gas intake valve, net gas venthole, separation frame, Outer barrel and inner cylinder；Inner cylinder, which is placed in outer barrel, forms cylindrical drum, and the both sides that end cover is arranged on cylindrical drum connect inner cylinder and outer Cylinder；A plurality of net gas intake valves are arranged on outer barrel, and a plurality of net gas ventholes are arranged on inner cylinder；Net gas intake valve and net gas Venthole is connected；Division rack is arranged on and a plurality of air chambers is formed between outer barrel and inner cylinder, and each air chamber enters comprising a net gas Air valve and a plurality of net gas ventholes, net gas venthole are the aperture of trapezoidal cone shape.

2. a kind of flue dustproof device according to claim 1, it is characterised in that：Net gas intake valve has appendix connection End, appendix connection end exposes to the outer wall of outer barrel.

3. a kind of flue dustproof device according to claim 1, it is characterised in that：Also include seal washer, seal washer Installed in the junction of net gas intake valve and outer barrel.

4. a kind of flue dustproof device according to claim 1, it is characterised in that：Aperture and the angle that inner cylinder is in 15 ° ~ 30 ° Degree.

5. a kind of flue dustproof device according to claim 1, it is characterised in that：End cover is used without seam weld with outer barrel The mode connect is fixed, and is bolted with inner cylinder.

6. a kind of flue dustproof device according to claim 1, it is characterised in that：Net gas intake valve in each air chamber There is tapered gas diffusion piece at place.

7. a kind of method of work of flue dustproof device as claimed in claim 1, comprises the following steps:

Step one, when flue gas is flowed into from flue one end, clean gas is blown into by the net gas intake valve on outer barrel, Air pressure is formed in each air chamber；

Step 2, clean gas flows to inner cylinder by a plurality of net gas ventholes in air chamber, by trapezoidal cone shape aperture Act on the inner surface one layer of air diaphragm of formation of inner cylinder.