CN212719693U

CN212719693U - Horizontal biomass-fired steam boiler

Info

Publication number: CN212719693U
Application number: CN202021345417.9U
Authority: CN
Inventors: 戴金波; 伍敏; 周承顺
Original assignee: Hengyang Hengguo Boiler Co ltd
Current assignee: Hengyang Hengguo Boiler Co ltd
Priority date: 2020-07-10
Filing date: 2020-07-10
Publication date: 2021-03-16
Anticipated expiration: 2030-07-10

Abstract

The utility model discloses a horizontal biomass-fired steam boiler, which belongs to the technical field of steam boilers and comprises a biomass burner, a boiler body and an economizer which are sequentially connected by pipelines, wherein one side of the biomass burner is connected with the boiler body, the other side of the biomass burner is provided with a feed inlet, a feed connecting pipe is fixed on the feed inlet, one end of the feed connecting pipe is communicated with the biomass burner, and the other end of the feed connecting pipe is connected with a biomass fuel hopper for throwing biomass fuel by a flange; a wind shield is fixed on the inner wall of the feeding connecting pipe, the wind shield is positioned above the feeding connecting pipe, one side of the wind shield close to the feeding hole is arc-shaped and concave, so that the inner arc surface of the wind shield faces the feeding hole, and a space for biomass fuel to pass through is arranged between the bottom of the wind shield and the lower part of the inner part of the feeding connecting pipe; the wind shield is made of heat insulating materials, heat flow transmission can be effectively resisted, heat loss is reduced, biomass fuel is combusted in the biomass combustion engine, steam is produced, so that water in the boiler is heated up quickly, and the energy-saving and environment-friendly effects are achieved.

Description

Horizontal biomass-fired steam boiler

Technical Field

The utility model relates to a steam boiler technical field, in particular to horizontal biomass-fired steam boiler.

Background

In the 21 st century, energy shortage and environmental pollution problems have been the focus of global attention. The non-renewable energy sources such as petroleum, coal, natural gas and the like are increasingly tense in supply and demand due to limited reserves, and the price is high. The biomass energy is a clean energy which takes plants and agricultural and forestry wastes as raw materials, is environment-friendly, can be regenerated and recycled, has wide and inexhaustible raw material sources, and has the name of green coal. The biomass fuel has low operation cost, is about half of a fuel oil and gas boiler, and is lower than an electric heating boiler.

The biomass steam boiler is one kind of biomass boiler, and is a steam boiler which takes biomass fuel as raw material and is specially burned. The biomass steam boiler is environment-friendly in operation, fuel-saving, capable of automatically feeding and discharging slag, frequency-conversion adjustment of the air blower and the induced draft fan, full-automatic operation of the boiler, capability of automatically adjusting fuel quantity according to load change and stable in steam output.

Biomass steam boiler mainly includes boiler body and the biomass burning machine of connection in boiler body one side, all can be provided with the feed inlet that is used for biomass fuel to get into on the biomass burning machine, however current feed inlet adopts simple connecting pipe structure usually, makes things convenient for the feed inlet tip to all be the opening generally for the feeding, and therefore, the inside heat of biomass burning machine just gives off through the feed inlet outwards easily, leads to fuel calorific value utilization ratio lower.

In view of this, the utility model provides a horizontal biomass-fired steam boiler that can reduce heat and leak.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a horizontal biomass-fired steam boiler.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a horizontal biomass-fired steam boiler comprises a biomass burner, a boiler body and an economizer which are sequentially connected through pipelines, wherein one side of the biomass burner is connected with the boiler body, the other side of the biomass burner is provided with a feed inlet, a feed connecting pipe is fixed on the feed inlet, one end of the feed connecting pipe is communicated with the biomass burner, and the other end of the feed connecting pipe is connected with a biomass fuel hopper for throwing biomass fuel through a flange;

a wind shield is fixed on the inner wall of the feeding connecting pipe and is positioned above the feeding connecting pipe, one side of the wind shield close to the feeding hole is arc-shaped and concave, so that the inner arc surface of the wind shield faces the feeding hole, and a space for biomass fuel to pass through is arranged between the bottom of the wind shield and the lower part of the inner part of the feeding connecting pipe;

the wind deflector is made of heat insulating materials.

By adopting the structure, the heat flow in the biomass burner is blocked by the wind shield when passing through the feeding connecting pipe, so that the heat flow forms a vortex at the inner side of the wind shield, and the wind shield is made of a heat insulating material, so that the heat flow transmission can be effectively resisted, and the heat loss is reduced. Biomass fuel burns in biomass burning machine, produces steam and boiler intercommunication, because steam temperature is very high, enables the water rapid heating up in the boiler, makes the boiler reach operating pressure fast, has shortened the time, and is energy-concerving and environment-protective.

More preferably: the feeding connecting pipe is obliquely arranged, the lower end of the feeding connecting pipe is connected with the biomass burner, and the upper end of the feeding connecting pipe is connected with the biomass fuel hopper.

Adopt above-mentioned structure, the slope setting is taken over in the feeding, can accelerate biomass fuel's entering on the one hand, reduces and blocks up, and on the other hand can cooperate the deep bead, plays certain wind-break effect, reduces the heat and leaks.

More preferably: the bottom of the feeding connecting pipe is provided with a vibrator which is a bin wall vibrator and is close to the lower part of the wind shield.

By adopting the structure, the biomass fuel can rapidly pass through the distance between the wind shield and the feeding connecting pipe, and the blockage is reduced.

More preferably: the wind shield is a silicate heat insulation plate.

By adopting the structure, the raw material source is wide, and the heat insulation effect is good.

More preferably: a fire outlet is formed in the biomass burner, a connecting pipeline is connected between the biomass burner and the boiler body, and the connecting pipeline is communicated with the biomass burner through the fire outlet;

the biomass burner is connected with a secondary air pipe, the air inlet end of the secondary air pipe is connected with a fan, the air outlet end of the secondary air pipe is communicated with the biomass burner, and the air outlet end of the secondary air pipe is close to the fire outlet.

By adopting the structure, the combustion-supporting function is achieved, the fire is good, and the fuel can reach the burnout state as far as possible.

More preferably: the outside of the boiler body is provided with a platform protection ladder.

To sum up, the utility model discloses following beneficial effect has: biomass fuel burns in biomass burning machine, produces steam and boiler intercommunication, because steam temperature is very high, enables the water rapid heating up in the boiler, makes the boiler reach operating pressure fast, has shortened the time, and is energy-concerving and environment-protective. When biomass fuel passes through biomass fuel fill feeding, biomass fuel will take over along the feeding of slope setting and enter into the biomass burning machine, for accelerating biomass fuel's entering, prevent that biomass fuel from blockking up in the feeding takes over, but start the vibrator during the feeding. The heat flow in the biomass burner is blocked by the wind shield when passing through the feeding connecting pipe, so that the wind shield forms a vortex at the inner side of the wind shield, and the arrangement of the wind shield is matched with the inclined feeding connecting pipe, so that the heat flow transmission can be effectively resisted, and the heat loss is reduced.

Drawings

FIG. 1 is a schematic front view of an embodiment, which is mainly used for embodying the overall structure of a horizontal biomass-fired steam boiler;

FIG. 2 is a schematic top view of an embodiment, which is mainly used for embodying the overall structure of a horizontal biomass-fired steam boiler;

FIG. 3 is a schematic side view of an embodiment, primarily for embodying the structure of the boiler body;

fig. 4 is a schematic sectional view of an embodiment, which is mainly used for embodying the structure of the feeding connection pipe.

In the figure, 1, a biomass burner; 2. a boiler body; 3. a smoke exhaust duct; 4. a coal economizer; 5. a platform protection ladder; 6. a vibrator; 7. connecting a pipeline; 8. a biomass fuel hopper; 9. a feeding pipe connection; 10. a secondary air duct; 11. a fan; 12. a wind deflector.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a horizontal biomass-fired steam boiler is shown in figures 1-4 and comprises a biomass burner 1, a boiler body 2 and an economizer 4 which are sequentially connected through pipelines, wherein the economizer 4 is used for being connected with a chimney. One side of the biomass burner 1 is connected with the boiler body 2, the other side of the biomass burner is provided with a feed inlet for biomass fuel to enter, and a feed connecting pipe 9 is fixed on the feed inlet. One end of the feeding connecting pipe 9 is communicated with the biomass burner 1, and the other end of the feeding connecting pipe is connected with a biomass fuel hopper 8 for throwing biomass fuel through a flange.

Referring to fig. 1 to 4, the feeding connection pipe 9 is disposed in an inclined manner, and has a lower end connected to the biomass burner 1 and an upper end connected to the biomass fuel hopper 8. Preferably, the included angle between the feeding connecting pipe 9 and the biomass burner 1 is 120-. A wind shield 12 is fixed on the inner wall of the feeding connecting pipe 9, and the wind shield 12 is positioned above the inner part of the feeding connecting pipe 9. The deep bead 12 is the arc and is sunken form on the side of being close to the feed inlet to make deep bead 12 intrados towards the feed inlet, so, the hot current wind direction that distributes out from biomass combustion engine 1 will change in deep bead 12 depressed part, thereby produces the adverse current. The bottom of the wind shield 12 and the inner lower part of the feeding connecting pipe 9 are provided with a distance for biomass fuel to pass through. Preferably, the wind deflector 12 is curved on the side away from the feed inlet, and the outer curved surface faces the biomass fuel hopper 8, so that the biomass fuel can rapidly pass through the space between the wind deflector 12 and the feed connection pipe 9.

Referring to fig. 1-4, the wind deflector 12 is made of a thermally insulating material, and specifically, the wind deflector 12 is a silicate insulation panel. In order to prevent biomass fuel from blocking below the wind shield 12 and being unable to enter the biomass burner 1, it is preferable that the bottom of the feeding connecting pipe 9 is provided with a vibrator 6, and the vibrator 6 is a bin wall vibrator and is close to the lower part of the wind shield 12.

Referring to fig. 1-4, a fire outlet is arranged on one side of the biomass burner 1 far away from the discharge port, a connecting pipeline 7 is connected between the biomass burner 1 and the boiler body 2, and the connecting pipeline 7 is communicated with the biomass burner 1 through the fire outlet. Be connected with secondary tuber pipe 10 on the biomass burning machine 1, secondary tuber pipe 10 air inlet end is connected with fan 11, and the air-out end communicates with biomass burning machine 1, and secondary tuber pipe 10's air-out end is close to out the burner. In order to facilitate maintenance and operation, a platform protection ladder 5 is arranged outside the boiler body 2. Boiler body 2 has seted up the gas port keeping away from biomass combustion machine 1 one side, is connected with exhaust pipe 3 between economizer 4 and the boiler body 2, and exhaust pipe 3 passes through the gas port and communicates with boiler body 2.

When biomass fuel passes through biomass fuel fill 8 feeding, biomass fuel will follow the feeding takeover 9 of slope setting and enter into biomass combustion machine 1, for accelerating biomass fuel's entering, prevent that biomass fuel from blockking up in feeding takeover 9, but start vibrator 6 during the feeding. The heat flow in the biomass burner 1 is blocked by the wind shield 12 when passing through the feeding connecting pipe 9, so that the vortex is formed on the inner side of the wind shield 12, and the arrangement of the wind shield 12 is matched with the inclined feeding connecting pipe 9, so that the heat flow transmission can be effectively resisted, and the heat loss is reduced.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a horizontal biomass-fired steam boiler, includes biomass burning machine (1), boiler body (2) and economizer (4) of pipe connection in proper order, characterized by: one side of the biomass burner (1) is connected with the boiler body (2), the other side of the biomass burner is provided with a feed inlet, a feed connecting pipe (9) is fixed on the feed inlet, one end of the feed connecting pipe (9) is communicated with the biomass burner (1), and the other end of the feed connecting pipe is connected with a biomass fuel hopper (8) for throwing biomass fuel through a flange;

a wind shield (12) is fixed on the inner wall of the feeding connecting pipe (9), the wind shield (12) is positioned above the inner part of the feeding connecting pipe (9), one side, close to the feeding hole, of the wind shield (12) is arc-shaped and concave, so that the inner arc surface of the wind shield (12) faces the feeding hole, and a space for biomass fuel to pass through is arranged between the bottom of the wind shield (12) and the lower part of the inner part of the feeding connecting pipe (9);

the wind deflector (12) is made of heat-insulating materials.

2. The horizontal biomass-fired steam boiler according to claim 1, wherein: the feeding connecting pipe (9) is obliquely arranged, the lower end of the feeding connecting pipe is connected with the biomass burner (1), and the upper end of the feeding connecting pipe is connected with the biomass fuel hopper (8).

3. The horizontal biomass-fired steam boiler according to claim 2, wherein: the bottom of the feeding connecting pipe (9) is provided with a vibrator (6), and the vibrator (6) is a bin wall vibrator and is close to the lower part of the wind shield (12).

4. The horizontal biomass-fired steam boiler according to claim 1, wherein: the wind shield (12) is a silicate heat insulation plate.

5. The horizontal biomass-fired steam boiler according to claim 1, wherein: a fire outlet is formed in the biomass burner (1), a connecting pipeline (7) is connected between the biomass burner (1) and the boiler body (2), and the connecting pipeline (7) is communicated with the biomass burner (1) through the fire outlet;

be connected with secondary tuber pipe (10) on biomass burning machine (1), secondary tuber pipe (10) air inlet end is connected with fan (11), the air-out end with biomass burning machine (1) intercommunication, the air-out end of secondary tuber pipe (10) is close to go out the burner.

6. The horizontal biomass-fired steam boiler according to claim 1, wherein: the boiler is characterized in that a platform protection ladder (5) is arranged outside the boiler body (2).