CN211854079U

CN211854079U - Biomass boiler air preheating device

Info

Publication number: CN211854079U
Application number: CN201922029552.6U
Authority: CN
Inventors: 徐立荣
Original assignee: Harbin Youhuan Technology Equipment Co Ltd
Current assignee: Harbin Youhuan Technology Equipment Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-11-03
Anticipated expiration: 2029-11-22

Abstract

The utility model relates to a biomass boiler air preheating device, include the box and preheat the mechanism, one side of box is provided with the intake pipe, the other end of intake pipe is provided with the rose box, the rose box is kept away from intake pipe one side and is provided with the air inlet, the inside one side that is close to the air inlet of rose box is provided with the filter screen, the rose box is kept away from air inlet one side at the filter screen and is provided with the activated carbon plate, one side of keeping away from the intake pipe on the box is provided with the outlet duct, preheat the mechanism and comprise gas-supply pipe, first connecting box, a plurality of heat exchange tube, second connecting box and blast pipe, the upper end that is close to. The utility model discloses simple structure, reasonable in design can make exhaust gas and the abundant contact of leading-in air, guarantees that leading-in air can preheat fast, improves thermal utilization ratio and preheats the effect, and device overall structure is simple simultaneously, and the cost is with low costs, and the smoke and dust treatment effect is good, accords with actual demand more.

Description

Biomass boiler air preheating device

Technical Field

The utility model relates to a biomass boiler equipment technical field specifically is a biomass boiler air preheating device.

Background

The biomass boiler is a kind of boiler, namely a boiler taking biomass energy as fuel is called as a biomass boiler and is divided into a biomass steam boiler, a biomass hot water boiler, a biomass hot air furnace, a biomass heat-conducting oil furnace, a vertical biomass boiler, a horizontal biomass boiler and the like, the boiler adopts combustion equipment most suitable for biomass fuel combustion and a reciprocating grate, the boiler has larger space compared with the hearth of the traditional boiler in structural design, simultaneously arranges very reasonable secondary air, is favorable for full combustion of a large amount of volatile components separated instantly during biomass fuel combustion, and a gas heat exchanger is an important and indispensable part in the boiler and mainly has the functions of recovering heat in smoke, reducing smoke exhaust temperature and leading high-temperature smoke at the tail part of the boiler to be in heat exchange with air through a smoke pipe, but the waste gas in the existing device is not fully contacted with the entering air, the heat transfer efficiency is lower, and current device structure is complicated simultaneously, and the cost is higher, and the inside dust that adheres easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a biomass boiler air preheating device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an air preheating device of a biomass boiler comprises a box body and a preheating mechanism, wherein an air inlet pipe is arranged on one side of the box body, a filter box is arranged at the other end of the air inlet pipe, an air inlet is arranged on one side, away from the air inlet pipe, of the filter box, a filter screen is arranged on one side, close to the air inlet, of the interior of the filter box, an activated carbon plate is arranged on one side, away from the air inlet, of the filter box, an air outlet pipe is arranged on one side, away from the air inlet pipe, of the box body, the preheating mechanism is arranged on the box body and consists of a gas pipe, a first connecting box, a plurality of heat exchange pipes, a second connecting box and an exhaust pipe, the upper end, close to one side of the air inlet pipe, of the box body is provided with the gas pipe, the lower, the other end of the heat exchange tube is provided with a second connecting box, the lower end of the second connecting box is provided with an exhaust pipe, and the lower end of the exhaust pipe is arranged on the box body.

Preferably, flanges are arranged at one end of the air outlet pipe, one end of the air delivery pipe and one end of the exhaust pipe, which are far away from the box body, and the other end of the exhaust pipe are far away from the box body.

Preferably, telescopic pipes are arranged on the gas conveying pipe and the exhaust pipe.

Preferably, the lower end of the first connecting box and the upper end of the second connecting box are both provided with supporting blocks, and the other ends of the supporting blocks are arranged on the box body.

Preferably, the outside diameter of first connecting box and second connecting box all is less than the diameter of box inner wall, all be provided with the through-hole on the first connecting box and on the second connecting box.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a be provided with preheating mechanism, preheating mechanism sets up on the box, and preheating mechanism comprises gas-supply pipe, first connecting box, a plurality of heat exchange tube, second connecting box and blast pipe, through the effect of preheating mechanism, can make exhaust gas and the abundant contact of leading-in air, guarantees that the air of leading-in can preheat fast, improves thermal utilization ratio and preheating effect;

2. the utility model discloses a keep away from intake pipe one side at the rose box and be provided with the air inlet, the inside one side that is close to the air inlet of rose box is provided with the filter screen, and the rose box is kept away from air inlet one side at the filter screen and is provided with the activated carbon plate, through the effect of rose box, can filter the smoke and dust in the exhaust waste gas effectively, and overall structure is simple simultaneously, and the cost is with low costs, accords with actual demand more.

Drawings

FIG. 1 is an overall front view of an air preheating device of a biomass boiler according to the present invention;

FIG. 2 is a schematic diagram of the internal structure of the air preheating device of the biomass boiler of the present invention;

FIG. 3 is a schematic view of the internal structure of the filtering box of the air preheating device of the biomass boiler of the present invention;

fig. 4 is a cross-sectional view of the first connecting box of the air preheating device of the biomass boiler of the utility model.

In the figure: 1. a box body; 101. an air inlet pipe; 102. an air outlet pipe; 2. a preheating mechanism; 21. a gas delivery pipe; 211. a telescopic pipe; 22. a first connection box; 221. a through hole; 23. a heat exchange pipe; 24. a second connecting box; 25. an exhaust pipe; 3. a filter box; 31. an air inlet; 4. filtering with a screen; 5. an activated carbon plate; 6. a flange; 7. and (7) a supporting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an air preheating device of a biomass boiler comprises a box body 1 and a preheating mechanism 2, wherein one side of the box body 1 is hermetically communicated with an air inlet pipe 101, the other end of the air inlet pipe 101 is hermetically communicated with a filter box 3, one side of the filter box 3, which is far away from the air inlet pipe 101, is provided with an air inlet 31, one side, which is close to the air inlet 31, in the filter box 3 is provided with an activated carbon plate 5, one side, which is far away from the air inlet 31, of the filter box 4 is provided with an air outlet pipe 102, the preheating mechanism 2 is arranged on the box body 1, the preheating mechanism 2 comprises an air conveying pipe 21, a first connecting box 22, a plurality of heat exchange pipes 23, a second connecting box 24 and an air exhaust pipe 25, the upper end, which is close to one side of the air inlet pipe 101, in the box body 1 is hermetically communicated with the air conveying pipe 21, the lower end of the air conveying pipe 21 is internally provided with the first connecting box, the other end of the heat exchange pipe 23 is provided with a second connection box 24, the lower end of the second connection box 24 is provided with an exhaust pipe 25, and the lower end of the exhaust pipe 25 is arranged on the box body 1.

The heat preservation is installed on the inside wall of box 1, is favorable to preventing the heat loss, plays certain guard action.

Flanges 6 are welded to one end, away from the box body 1, of the outlet pipe 102, one end, away from the box body 1, of the air pipe 21 and one end, away from the box body 1, of the exhaust pipe 25, so that the outlet pipe 102, the air pipe 21 and the exhaust pipe 25 can be connected with external pipelines.

The air conveying pipe 21 and the exhaust pipe 25 are both provided with telescopic pipes 211, which is beneficial to adjusting the angles of the air conveying pipe 21 and the exhaust pipe 25 when being connected with an external pipeline.

Supporting blocks 7 are welded at the lower end of the first connecting box 22 and the upper end of the second connecting box 24, the other ends of the supporting blocks 7 are welded on the box body 1, and the stability of the first connecting box 22 and the stability of the second connecting box 24 are increased.

The outside diameter of first connecting box 22 and second connecting box 24 all is less than the diameter of 1 inside wall of box, has all seted up through-hole 221 on first connecting box 22 and on the second connecting box 24, is favorable to guaranteeing the normal circulation of waste gas.

The working principle is as follows: in this device, be provided with and preheat mechanism 2, preheat mechanism 2 and set up on box 1, preheat mechanism 2 by gas-supply pipe 21, first connecting box 22, a plurality of heat exchange tube 23, second connecting box 24 and blast pipe 25 are constituteed, be connected exhaust gas outlet pipe and the air inlet 31 on the rose box 3 when using, be connected the admission line of blast pipe 25 and boiler simultaneously, effect through heat exchange tube 23, can make the abundant contact of exhaust gas and leading-in air, guarantee that leading-in air can preheat fast, improve thermal utilization ratio and preheat the effect, simultaneously through filter screen 4 and active carbon plate 5's effect, can filter the smoke and dust in the exhaust gas effectively, overall structure is simple simultaneously, the cost is with low costs, accord with actual demand more.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a biomass boiler air preheating device, includes box (1) and preheats mechanism (2), its characterized in that: an air inlet pipe (101) is arranged on one side of the box body (1), a filter box (3) is arranged at the other end of the air inlet pipe (101), an air inlet (31) is arranged on one side, away from the air inlet pipe (101), of the filter box (3), a filter screen (4) is arranged on one side, close to the air inlet (31), of the interior of the filter box (3), an activated carbon plate (5) is arranged on one side, away from the air inlet (31), of the filter screen (4), of the filter box (3), an air outlet pipe (102) is arranged on one side, away from the air inlet pipe (101), of the box body (1), a preheating mechanism (2) is arranged on the box body (1), the preheating mechanism (2) is composed of an air conveying pipe (21), a first connecting box (22), a plurality of heat exchange pipes (23), a second connecting box (24) and an air exhausting pipe (25), the air conveying pipe, the lower extreme of gas-supply pipe (21) is provided with first connecting box (22) in the inside of box (1), first connecting box (22) are kept away from and are provided with a plurality of heat exchange tube (23) on the side of intake pipe (101) one side, the other end of heat exchange tube (23) is provided with second connecting box (24), the lower extreme of second connecting box (24) is provided with blast pipe (25), the lower extreme setting of blast pipe (25) is on box (1).

2. The air preheating device of the biomass boiler according to claim 1, wherein: and a heat-insulating layer is arranged on the inner side wall of the box body (1).

3. The air preheating device of the biomass boiler according to claim 1, wherein: flanges (6) are arranged at one end, far away from the box body (1), of the air outlet pipe (102), one end, far away from the box body (1), of the air conveying pipe (21) and one end, far away from the box body (1), of the exhaust pipe (25).

4. The air preheating device of the biomass boiler according to claim 1, wherein: the air delivery pipe (21) and the exhaust pipe (25) are both provided with telescopic pipes (211).

5. The air preheating device of the biomass boiler according to claim 1, wherein: the lower end of the first connecting box (22) and the upper end of the second connecting box (24) are both provided with supporting blocks (7), and the other ends of the supporting blocks (7) are arranged on the box body (1).

6. The air preheating device of the biomass boiler according to claim 1, wherein: the outside diameter of first connecting box (22) and second connecting box (24) all is less than the diameter of box (1) inside wall, all be provided with through-hole (221) on first connecting box (22) and on second connecting box (24).