CN218269117U

CN218269117U - Shock wave ash blower for boiler

Info

Publication number: CN218269117U
Application number: CN202222775948.7U
Authority: CN
Inventors: 倪继伟
Original assignee: Deqing Wangneng Environmental Protection Energy Co ltd
Current assignee: Deqing Wangneng Environmental Protection Energy Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-10
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a boiler shock wave soot blower, which comprises a gas pulse soot blower main body (1), wherein the gas pulse soot blower main body (1) is connected with a pulse tank (2), the pulse tank (2) is connected with a soot blowing spray pipe (3), and a connecting elbow (4) is arranged between the pulse tank (2) and the soot blowing spray pipe (3); the soot blowing spray pipe (3) comprises an inner pipe (301) positioned in the boiler (5) and an outer pipe (302) positioned outside the boiler (5) and connected with the connecting elbow (4), and the inner pipe (301) is provided with a gas nozzle (303); the outer pipe (302) and the connecting elbow (4) are provided with a heat insulation component (6); the boiler air curtain structure is characterized by further comprising a protective air curtain component (7) fixed in the boiler (5), and the protective air curtain component (7) is matched with the inner pipe (301). The utility model has the characteristics of can effectively reduce in soot blowing spray tube and the pulse tank ponding and stifled grey.

Description

Shock wave ash blower for boiler

Technical Field

The utility model relates to a pulse soot blower, especially a boiler shock wave soot blower.

Background

The gas pulse soot blower (shock wave soot blower) removes the surface ash on the heated surface of the boiler through the impact kinetic energy, sound energy and heat energy, so as to achieve the purpose of improving the efficiency of the boiler. Because the outside straight tube section of soot blowing spray tube and the inside straight tube section of boiler's cold, hot bonding to can produce the comdenstion water, the ash content in the soot blowing spray tube is easily brought the boiler flue gas into in the soot blowing spray tube, the pulse generator, long-term the use can produce ponding, stifled grey phenomenon, and the corrosivity damage to equipment such as soot blowing spray tube, pulse tank is more serious. Therefore, the prior art has the problems of easy water accumulation and ash blockage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler shock wave soot blower. The utility model has the characteristics of can effectively reduce in soot blowing spray tube and the pulse tank ponding and stifled grey.

The technical scheme of the utility model: the boiler shock wave soot blower comprises a gas pulse soot blower main body, wherein the gas pulse soot blower main body is connected with a pulse tank, the pulse tank is connected with a soot blowing spray pipe, and a connecting elbow is arranged between the pulse tank and the soot blowing spray pipe; the soot blowing spray pipe comprises an inner pipe positioned in the boiler and an outer pipe positioned outside the boiler and connected with the connecting elbow, and the inner pipe is provided with a gas nozzle; the outer pipe and the connecting elbow are provided with heat insulation components; the boiler also comprises a protective air curtain component fixed in the boiler, and the protective air curtain component is matched with the inner pipe.

In the aforementioned boiler shock wave soot blower, the heat preservation subassembly is equipped with the aerogel carpet veneer including the insulating layer, the cotton layer of heat preservation and the protective cover body of cover establishing outside outer tube and connecting elbow, the internal wall of protective cover.

In the aforementioned shock wave soot blowing device for a boiler, the protective air curtain component includes an annular base located outside the inner tube, the upper and lower sides of the inner end surface of the annular base are provided with arc-shaped air outlets, the rear end of the annular base is provided with an induced draft housing matched with the arc-shaped air outlets, and the induced draft housing is connected with a fan located outside the boiler through a pipeline.

Compared with the prior art, the utility model has the advantages that the heat preservation components are sleeved outside the connecting elbow and the outer pipe to preserve heat of the connecting elbow and the outer pipe, so that the condensation of the connecting elbow and the outer pipe is prevented from producing ponding; the protective air curtain component corresponding to the inner pipe is arranged in the boiler, so that the smoke is prevented from entering the soot blowing spray pipe; through the mutual cooperation between the above-mentioned structure, effectual effect that plays heat preservation, prevents that the flue gas from getting into and producing the vortex. The problems of water accumulation and dust deposition are effectively solved, the corrosion to equipment is reduced, and the service life of the equipment is prolonged. To sum up, the utility model has the characteristics of can effectively reduce the ponding and the stifled ash in soot blowing spray tube and the pulse tank.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a structural view of the insulating assembly.

The labels in the figures are: 1-a gas pulse soot blower main body, 2-a pulse tank, 3-a soot blowing spray pipe, 4-a connecting elbow, 5-a boiler, 6-a heat preservation component, 7-a protection air curtain component, 301-an inner pipe, 302-an outer pipe, 303-an air jet, 601-an insulation heat insulation layer, 602-a heat insulation cotton layer, 603-a protection cover body, 604-an aerogel felt layer, 701-an annular base, 702-an arc air outlet, 703-an induced air cover and 704-a fan.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. The boiler shock wave soot blower is formed as shown in figures 1-3 and comprises a gas pulse soot blower main body 1, wherein the gas pulse soot blower main body 1 is connected with a pulse tank 2, the pulse tank 2 is connected with a soot blowing spray pipe 3, and a connecting elbow 4 is arranged between the pulse tank 2 and the soot blowing spray pipe 3; the soot blowing spray pipe 3 comprises an inner pipe 301 positioned in the boiler 5 and an outer pipe 302 positioned outside the boiler 5 and connected with the connecting elbow 4, and the inner pipe 301 is provided with a gas nozzle 303; the outer pipe 302 and the connecting elbow 4 are provided with a heat insulation component 6; the boiler also comprises a protective air curtain component 7 fixed in the boiler 5, and the protective air curtain component 7 is matched with the inner pipe 301.

The heat insulation assembly 6 comprises an insulation layer 601, a heat insulation cotton layer 602 and a protection cover body 603, wherein the insulation layer 601, the heat insulation cotton layer 602 and the protection cover body 603 are sleeved outside the outer pipe 302 and the connecting elbow 4, and an aerogel felt layer 604 is arranged on the inner wall surface of the protection cover body 603.

The protective air curtain component 7 comprises an annular base 701 positioned outside the inner pipe 301, the upper side and the lower side of the inner end surface of the annular base 701 are provided with arc-shaped air outlets 702, the rear end of the annular base 701 is provided with an induced draft cover 703 matched with the arc-shaped air outlets 702, and the induced draft cover 703 is connected with a fan 704 positioned outside the boiler 5 through a pipeline.

The utility model discloses a use: the gas pulse soot blower main body supplies gas into the pulse tank, deflagrates in the pulse tank, and shock waves formed after deflagration are discharged from an air jet of the inner pipe through the connecting elbow, the outer pipe and the inner pipe, so that accumulated ash in the boiler is impacted and cleaned, and the accumulated ash is separated from a heated surface and falls off. In the process, the heat insulation component plays a role in heat insulation of the connecting elbow and the outer pipe, so that the temperature of the outer pipe is consistent with that of the inner pipe, and condensation cannot occur; simultaneously, the work of protection air curtain subassembly, protective gas follow the arc gas outlet and flow out, form one air curtain in the jet orifice outside to can prevent that the flue gas from flowing into in soot blowing spray tube and the pulse jar through the jet orifice.

Claims

1. Boiler shock wave soot blower, including gas pulse soot blower main part (1), gas pulse soot blower main part (1) is connected with pulse tank (2), and pulse tank (2) are connected with soot blowing spray tube (3), its characterized in that: a connecting elbow (4) is arranged between the pulse tank (2) and the soot blowing spray pipe (3); the soot blowing spray pipe (3) comprises an inner pipe (301) positioned in the boiler (5) and an outer pipe (302) positioned outside the boiler (5) and connected with the connecting elbow (4), and the inner pipe (301) is provided with a gas nozzle (303); the outer pipe (302) and the connecting elbow (4) are provided with a heat insulation component (6); the boiler air curtain protection device is characterized by further comprising a protection air curtain component (7) fixed in the boiler (5), and the protection air curtain component (7) is matched with the inner pipe (301).

2. The boiler shock wave soot blowing device of claim 1, wherein: the heat insulation assembly (6) comprises an insulation heat insulation layer (601), a heat insulation cotton layer (602) and a protection cover body (603), wherein the insulation heat insulation layer (601), the heat insulation cotton layer and the protection cover body (603) are sleeved outside the outer pipe (302) and the connecting elbow (4), and an aerogel felt layer (604) is arranged on the inner wall surface of the protection cover body (603).

3. The boiler shock wave soot blowing device of claim 1, wherein: the protective air curtain component (7) comprises an annular base (701) located outside the inner pipe (301), arc-shaped air outlets (702) are formed in the upper side and the lower side of the inner end face of the annular base (701), an air induction cover (703) matched with the arc-shaped air outlets (702) is arranged at the rear end of the annular base (701), and the air induction cover (703) is connected with a fan (704) located outside the boiler (5) through a pipeline.