CN215808387U

CN215808387U - Environment-friendly biomass steam boiler

Info

Publication number: CN215808387U
Application number: CN202121943589.0U
Authority: CN
Inventors: 于祥瑞; 李树志; 李广志
Original assignee: Tangshan Haorui New Energy Co ltd
Current assignee: Tangshan Haorui New Energy Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-11
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to the technical field of boilers, in particular to an environment-friendly biomass steam boiler. Comprises a combustion device, a steam generator and a smoke exhaust device. The steam generator is internally provided with a steam generating body for generating steam, and the lower part of the steam generator is provided with an ash storage chamber. The middle part of the smoke exhaust device is provided with a filtering device. The combustion device is adopted to generate hot gas, the hot gas enters from the upper part of the steam generator and is discharged from the lower part of the steam generator, ash in the hot gas can be fully settled and then is discharged by the smoke discharging device provided with the filtering device, and the ash is basically not contained when the hot gas is discharged into the atmosphere, so that the combustion device is environment-friendly; the structure that the filtering device is obliquely arranged relative to the side wall of the smoke exhaust device is adopted, so that the filtering area is increased, and the filtering flow of the filtering device is improved; the structure that a plurality of concave platforms and bosses are respectively arranged on two sides of the steam generating body is adopted, and the heat exchange efficiency is improved.

Description

Environment-friendly biomass steam boiler

Technical Field

The utility model relates to the technical field of boilers, in particular to an environment-friendly biomass steam boiler.

Background

The biomass fuel has low harmful contents of sulfur and the like, and is a very clean renewable energy source. Biomass-fueled steam boilers, which utilize the energy of biomass to produce steam, are a very good way to utilize biomass fuels. However, when biomass fuel such as straw is burned, ash generated by the biomass fuel is easy to be changed into smoke along with the rise of hot air, and the environment is polluted.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an environment-friendly biomass steam boiler aiming at the technical defects, wherein a combustion device is adopted to generate hot gas, the hot gas enters from the upper part and is discharged from the lower part of the steam generator, ash in the hot gas can be fully settled and then is discharged by a smoke exhaust device provided with a filtering device, and the steam boiler does not contain ash basically when being discharged into the atmosphere and is environment-friendly; the structure that the filtering device is obliquely arranged relative to the side wall of the smoke exhaust device is adopted, so that the filtering area is increased, and the filtering flow of the filtering device is improved; the structure that a plurality of concave platforms and bosses are respectively arranged on two sides of the steam generating body is adopted, and the heat exchange efficiency is improved.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: an environment-friendly biomass steam boiler comprises a combustion device, a steam generator and a smoke exhaust device. The combustion device is characterized in that a cavity is formed in the combustion device, a fire grate is arranged in the cavity, a first ash discharge port and an air blower interface are arranged at the position of the combustion device below the fire grate, a fuel inlet is arranged at the position of the combustion device above the fire grate, and a hot air pipe is arranged at the top of the combustion device. The steam generator is characterized in that a cavity is formed in the steam generator, a plurality of steam generators are arranged in the cavity, an exhaust pipe is arranged at the upper part of the side surface of each steam generator, a second water inlet pipe is arranged at the lower part of the side surface of each steam generator, the exhaust pipe penetrates through the shell of the steam generator and is connected with a steam pipe, and the second water inlet pipe penetrates through the shell of the steam generator and is connected with a first water inlet pipe; the steam generator is characterized in that a hot air inlet is formed in the upper portion of the steam generating body and is connected with a hot air pipe, an air outlet is formed in one side of the lower portion of the steam generating body, an ash storage chamber is formed in the portion, below the air outlet, of the inner cavity of the steam generator, a slidable partition plate is arranged on the upper portion of the ash storage chamber, and a second ash discharge port is formed in one side of the ash storage chamber. One side of the smoke exhaust device is communicated with the air outlet through a pipeline, a third ash discharge port is formed in the bottom of one side of the smoke exhaust device, and a detachable filtering device is arranged in the middle of the smoke exhaust device.

Further optimize this technical scheme, filter equipment sets up for fume extractor's lateral wall slope.

Further optimizes the technical proposal that the part playing the role of filtration on the filtration device is high temperature resistant filter cloth.

Further optimize this technical scheme, one side of the steam generating body is provided with a plurality of concave stations, the opposite side of the steam generating body is provided with a plurality of bosss, the width of boss is less than the width of concave station.

Compared with the prior art, the utility model has the following advantages: 1. the combustion device is adopted to generate hot gas, the hot gas enters from the upper part of the steam generator and is discharged from the lower part of the steam generator, ash in the hot gas can be fully settled and then is discharged by the smoke exhaust device provided with the filtering device, and the ash is basically not contained when the hot gas is discharged into the atmosphere, so that the environment is protected; 2. the mode that the filtering device is obliquely arranged relative to the side wall of the smoke exhaust device is adopted, so that the filtering area is increased, and the filtering flow of the filtering device is improved; 3. the structure that a plurality of concave platforms and bosses are respectively arranged on two sides of the steam generating body is adopted, so that the contact area of the steam generating body and hot flue gas is increased, and the heat exchange efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of an environment-friendly biomass steam boiler.

FIG. 2 is a schematic view of a combustion apparatus of an environmental biomass steam boiler.

FIG. 3 is a schematic diagram of the steam generator and the smoke exhaust of an environmental biomass steam boiler.

FIG. 4 is a schematic view of a steam generator of an environmental biomass steam boiler.

In the figure: 1. a combustion device; 11. a first ash discharge port; 12. a blower interface; 13. a hot air pipe; 14. a grate; 15. a fuel inlet; 2. a steam generator; 21. a partition plate; 22. a second ash discharge port; 23. a steam generator; 231. a first water inlet pipe; 232. a steam pipe; 233. a concave platform; 234. a boss; 235. an exhaust pipe; 236. a second water inlet pipe; 24. a hot air inlet; 25. an air outlet; 3. a fume extractor; 31. a third ash discharge port; 32. and (4) a filtering device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The specific implementation mode is as follows: referring to fig. 1 to 4, an environment-friendly biomass steam boiler comprises a combustion device 1, a steam generator 2 and a smoke exhaust device 3. The combustion device 1 is internally provided with a cavity, a fire grate 14 is arranged in the cavity, a first ash discharge port 11 and an air blower interface 12 are arranged at the position of the combustion device 1 below the fire grate 14, a fuel inlet 15 is arranged at the position of the combustion device 1 above the fire grate 14, and a hot air pipe 13 is arranged at the top of the combustion device 1. The steam generator 2 has a cavity therein, and a plurality of steam generators 23 are disposed in the cavity. An exhaust pipe 235 is arranged at the upper part of the side surface of the steam generating body 23, a second water inlet pipe 236 is arranged at the lower part of the side surface of the steam generating body 23, the exhaust pipe 235 penetrates through the shell of the steam generator 2 to be connected with the steam pipe 232, and the second water inlet pipe 236 penetrates through the shell of the steam generator 2 to be connected with the first water inlet pipe 231. And a hot air inlet 24 is arranged above the steam generating body 23, and the hot air inlet 24 is connected with the hot air pipe 13. One side of steam generator 23 below is provided with air outlet 25, the position of the inside cavity of steam generator 2 below air outlet 25 is for depositing the ash room, the upper portion of depositing the ash room is provided with slidable baffle 21, it is provided with second row ash mouth 22 to deposit one side of ash room. In normal times, the partition plate 21 is in a pulled-out state, and when the ash in the ash storage chamber needs to be cleaned, the partition plate 21 is inserted, and then the ash can be taken out from the second ash discharge port 22. The height of the ash storage chamber can be designed to be higher, the partition plate 21 is located in the middle of the ash storage chamber, and then the partition plate 21 can be located in the ash storage chamber during operation, when ash is cleaned, the partition plate 21 only needs to be pulled out to enable the ash on the partition plate to fall into the lower portion of the ash storage chamber, then the partition plate 21 is pushed in, and then the ash can be taken out from the second ash discharge port 22. One side of the smoke exhaust device 3 is communicated with the air outlet 25 through a pipeline, the bottom of one side of the smoke exhaust device 3 is provided with a third ash discharge port 31, and the middle part of the smoke exhaust device 3 is provided with a detachable filtering device 32. In order to obtain a better filtering effect, the cross-sectional area of the smoke evacuation device 3 is relatively large, preferably more than four times the cross-sectional area of the air outlet 25, so that the flow rate of the smoke is slowed, the ash can settle at the bottom of the smoke evacuation device 3 under the action of gravity, and when the ash accumulates to a certain extent, the ash is manually taken out from the third ash discharge port 31. When the filter assembly 32 becomes clogged, it can be removed and replaced.

The filter device 32 is disposed obliquely with respect to the side wall of the smoke exhaust device 3, which increases the filtering area and improves the filtering flow rate of the filter device 32.

The components playing a role in filtering on the filtering device 32 are high-temperature-resistant filter cloth, so that the filtering effect is good and the safety is high.

One side of the steam generator 23 is provided with a plurality of concave stages 233, and the other side of the steam generator 23 is provided with a plurality of convex stages 234, wherein the width of the convex stages 234 is smaller than that of the concave stages 233. The structure increases the contact area of the steam generating body 23 and the hot flue gas, and improves the heat exchange efficiency.

The working principle is as follows: referring to fig. 1-4, the hot flue gas generated by the combustion device 1 enters from the top of the steam generator 2 and then flows downward, because the space inside the steam generator 2 is large, the flow speed of the flue gas is slow, the heat exchange between the flue gas and the steam generator 23 is sufficient, and the ash in the flue gas can be sufficiently settled under the action of gravity and falls into the ash storage chamber. The water is introduced into the steam generating body 23 through the first water inlet pipe 231 and heated to be steam, and discharged through the steam pipe 232. Since the temperature of the upper part of the steam generator 2 is high, the steam generated in the steam generating body 23 is located at the upper part thereof, and thus, the steam can be heated to a high temperature to provide high-temperature steam. The fine ash which is not settled in the steam generator 2 is fully filtered when passing through the smoke exhaust device 3, so the emission basically does not contain the ash, and the environment is protected.

The control mode of the utility model is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the utility model belongs to the common knowledge in the field, and the utility model is mainly used for protecting the mechanical arrangement, so the control mode and the circuit connection are not explained in detail in the utility model.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. An environment-friendly biomass steam boiler is characterized in that: comprises a combustion device (1), a steam generator (2) and a smoke exhaust device (3);

the combustion device (1) is internally provided with a cavity, a fire grate (14) is arranged in the cavity, a first ash discharge port (11) and an air blower interface (12) are arranged at the position of the combustion device (1) below the fire grate (14), a fuel inlet (15) is arranged at the position of the combustion device (1) above the fire grate (14), and a hot air pipe (13) is arranged at the top of the combustion device (1);

the steam generator (2) is internally provided with a cavity, a plurality of steam generating bodies (23) are arranged in the cavity, an exhaust pipe (235) is arranged at the upper part of the side surface of each steam generating body (23), a second water inlet pipe (236) is arranged at the lower part of the side surface of each steam generating body (23), the exhaust pipe (235) penetrates through the shell of the steam generator (2) and is connected with a steam pipe (232), and the second water inlet pipe (236) penetrates through the shell of the steam generator (2) and is connected with a first water inlet pipe (231); a hot air inlet (24) is formed above the steam generating body (23), the hot air inlet (24) is connected with a hot air pipe (13), an air outlet (25) is formed in one side below the steam generating body (23), an ash storage chamber is arranged below the air outlet (25) in the cavity of the steam generator (2), a slidable partition plate (21) is arranged at the upper part of the ash storage chamber, and a second ash discharge port (22) is formed in one side of the ash storage chamber;

one side of the smoke exhaust device (3) is communicated with the air outlet (25) through a pipeline, a third ash discharge port (31) is formed in the bottom of one side of the smoke exhaust device (3), and a detachable filtering device (32) is arranged in the middle of the smoke exhaust device (3).

2. An environmental biomass steam boiler according to claim 1, wherein: the filter device (32) is arranged obliquely relative to the side wall of the smoke exhaust device (3).

3. An environmental biomass steam boiler according to claim 1, wherein: the filtering part of the filtering device (32) is high temperature resistant filter cloth.

4. An environmental biomass steam boiler according to claim 1, wherein: a plurality of concave platforms (233) are arranged on one side of the steam generating body (23), a plurality of convex platforms (234) are arranged on the other side of the steam generating body (23), and the width of each convex platform (234) is smaller than that of each concave platform (233).