CN214426037U - Biomass fuel boiler's waste heat from flue gas device - Google Patents
Biomass fuel boiler's waste heat from flue gas device Download PDFInfo
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- CN214426037U CN214426037U CN202022805536.4U CN202022805536U CN214426037U CN 214426037 U CN214426037 U CN 214426037U CN 202022805536 U CN202022805536 U CN 202022805536U CN 214426037 U CN214426037 U CN 214426037U
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- waste heat
- heat recovery
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model relates to a flue gas waste heat recovery device, in particular to a flue gas waste heat recovery device of a biomass fuel boiler, which belongs to the technical field of flue gas waste heat recovery devices and comprises a boiler body, wherein the boiler body comprises a fuel boiler and a chimney, the chimney is arranged above the fuel boiler, the outer surface of the chimney is provided with a first waste heat recovery mechanism, the first waste heat recovery mechanism comprises a first waste heat recovery box, the first waste heat recovery mechanism is arranged to facilitate the recovery of the heat in the chimney due to the flue gas heat exchange, and the second waste heat recovery mechanism is arranged to facilitate the recovery of the heat in the discharged flue gas, therefore, the utility model has better waste heat recovery effect, and simultaneously, the effect of washing the flue gas is achieved through the reaction of the flue gas and water, thereby preventing the harmful gas mixed in the flue gas or the particles which are not completely combusted from being directly discharged to the outside to cause pollution, thereby making the utility model discloses better ground environmental protection performance has.
Description
Technical Field
The utility model relates to a flue gas waste heat recovery device specifically is a biomass fuel boiler's flue gas waste heat recovery device, belongs to flue gas waste heat recovery device technical field.
Background
Biomass refers to various organisms produced by photosynthesis using the atmosphere, water, land, and the like, that is, all living organic substances that can grow are generally called biomass, and biomass includes all plants, microorganisms, animals that feed on plants and microorganisms, and wastes produced by the same. Representative biomass materials include crops, crop wastes, wood wastes, and animal wastes. The narrow concept: the biomass mainly refers to lignocellulose (lignin for short) such as straws and trees except grains and fruits in the production process of agriculture and forestry, leftovers in the processing industry of agricultural products, agricultural and forestry wastes, livestock and poultry manure and wastes in the production process of animal husbandry, and the like.
The flue gas waste heat recovery device of the existing biomass fuel boiler has the following defects when in use: firstly, the heat in the chimney is mostly recovered by carrying out heat exchange on the heat in the chimney when the flue gas is recovered at the present stage, but only one part of the heat in the flue gas carries out heat exchange through the chimney, and the rest of the heat in the flue gas can not be effectively recovered and is directly discharged to the outside, so the recovery efficiency is low, and secondly, particles which are mixed in the flue gas and are not completely combusted and harmful gas are directly discharged to the outside, so the pollution is easily generated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a biomass fuel boiler's flue gas waste heat recovery device just lies in order to solve above-mentioned problem, through being provided with first waste heat recovery mechanism to be convenient for retrieve because the heat in flue gas heat exchange to the chimney, through being provided with second waste heat recovery mechanism, thereby be convenient for retrieve the heat in the exhaust flue gas, consequently the utility model discloses a waste heat recovery effect is better, simultaneously, through flue gas and water reaction, thereby reaches the effect of washing flue gas, consequently prevents thoughtlessly in the flue gas harmful gas or the granule of complete combustion not, directly discharges the external world and causes the pollution, thereby makes the utility model discloses better environmental protection performance has.
The utility model realizes the above purpose by the following technical proposal, a flue gas waste heat recovery device of a biomass fuel boiler, which comprises a boiler body, wherein the boiler body comprises a fuel boiler and a chimney, the chimney is arranged above the fuel boiler, the outer surface of the chimney is provided with a first waste heat recovery mechanism, the first waste heat recovery mechanism comprises a first waste heat recovery box, one side of the first waste heat recovery box is provided with a water feeding pipe, the other side of the first waste heat recovery box is provided with a first drainage pipe, the outer surface of the first drainage pipe is provided with a first valve, the end part of the chimney is provided with a second waste heat recovery mechanism, the second waste heat recovery mechanism comprises a second waste heat recovery box, the inner wall of the second waste heat recovery box is provided with a filter screen, one side of the second waste heat recovery box is provided with a smoke discharging pipe, the lower extreme of second waste heat recovery case is provided with the second drain pipe, the surface of second drain pipe is provided with the second valve, one side of second waste heat recovery case is provided with the filler pipe.
Preferably, in order to reduce the occupied area and reduce the heat loss, the waste heat is better recovered, and the chimney is of a U-shaped structure.
Preferably, in order to better control the opening and closing of the first valve and the second valve, both the first valve and the second valve are solenoid valves.
Preferably, in order to facilitate heat exchange between the waste heat in the flue gas and water, and simultaneously wash away harmful gases and incompletely combusted particles in the flue gas through reaction with water, water is arranged in the second waste heat recovery tank, and the liquid level of the water is lower than the horizontal plane where the smoke exhaust pipe is located.
Preferably, in order to allow the flue gases to react sufficiently with the water, the chimney is located below the level of the water.
Preferably, in order to prevent heat loss, a cavity is arranged on the inner side of the first waste heat recovery mechanism, and a heat insulation material is filled in the cavity.
Preferably, in order to improve the heat preservation effect, the heat preservation material is rock wool.
The utility model has the advantages that: the utility model discloses a be provided with first waste heat recovery mechanism to be convenient for retrieve because the heat of flue gas heat exchange to the chimney, through being provided with second waste heat recovery mechanism, thereby be convenient for retrieve the heat in the exhaust flue gas, consequently the utility model discloses a waste heat recovery effect is better, simultaneously, through flue gas and water reaction, thereby reaches the effect of washing flue gas, consequently prevents thoughtlessly in the flue gas harmful gas or the granule of complete combustion not, directly discharges the external world and causes the pollution, thereby makes the utility model discloses better environmental protection performance has.
Drawings
FIG. 1 is a sectional view of the overall structure of the present invention;
fig. 2 is an overall structure front view of the present invention;
fig. 3 is a schematic view of the structure of the filter screen of the present invention.
In the figure: 1. boiler body, 2, fuel boiler, 3, chimney, 4, first waste heat recovery case, 5, filler pipe, 6, first drain pipe, 7, first valve, 8, second waste heat recovery case, 9, filter screen, 10, exhaust pipe, 11, second drain pipe, 12, second valve, 13, water, 14, insulation material.
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. 1-3, a flue gas waste heat recovery device of a biomass fuel boiler 2 comprises a boiler body 1, the boiler body 1 comprises a fuel boiler 2 and a chimney 3, the chimney 3 is arranged above the fuel boiler 2, a first waste heat recovery mechanism is arranged on the outer surface of the chimney 3, the first waste heat recovery mechanism comprises a first waste heat recovery box 4, a water feeding pipe 5 is arranged on one side of the first waste heat recovery box 4, a first water discharging pipe 6 is arranged on the other side of the first waste heat recovery box 4, a first valve 7 is arranged on the outer surface of the first water discharging pipe 6, a second waste heat recovery mechanism is arranged at the end of the chimney 3, the second waste heat recovery mechanism comprises a second waste heat recovery box 8, a filter screen 9 is arranged on the inner wall of the second waste heat recovery box 8, a smoke discharging pipe 10 is arranged on one side of the second waste heat recovery box 8, a second water discharging pipe 11 is arranged at the lower end of the second waste heat recovery box 8, the outer surface of the second drain pipe 11 is provided with a second valve 12, and one side of the second waste heat recovery tank 8 is provided with a water adding pipe 5.
As a technical optimization scheme of the utility model, chimney 3 is U type structure to reduce area, reduce thermal loss.
As a technical optimization scheme of the utility model, first valve 7 and second valve 12 are the solenoid valve to control opening and close of first valve 7 and second valve 12.
As a technical optimization scheme of the utility model, be provided with water 13 in the second waste heat recovery case 8, the horizontal plane is less than the horizontal plane at the pipe 10 places of discharging fume to be convenient for carry out the heat exchange with waste heat in the flue gas and water 13, simultaneously through reacting with water 13, thereby water 13 washes away the harmful gas in the flue gas and the granule of complete combustion not.
As a technical optimization scheme of the utility model, the chimney 3 is located below the horizontal plane to make flue gas and water 13 fully react.
As a technical optimization scheme of the utility model, the inboard of first waste heat recovery mechanism is provided with the cavity, and the cavity intussuseption is filled with insulation material 14 to prevent that the heat from scattering and disappearing.
As a technical optimization scheme of the utility model, insulation material 14 is the rock wool to be convenient for improve the heat preservation effect.
When the utility model is used, firstly, a part of heat in the flue gas is exchanged heat through the chimney 3, the utility model is provided with a first waste heat recovery mechanism, the first waste heat recovery box 4 in the first waste heat recovery mechanism is coated on the outer surface of the chimney 3, so that the heat in the chimney 3 can be injected with water 13 in the first waste heat recovery box 4, thereby recovering the waste heat through the heat exchange with the water 13, the heat in the flue gas can be discharged below the liquid level in the second waste heat recovery box 8 through the smoke discharge pipe 10 in the second waste heat recovery mechanism, and the heat is fully exchanged with the water 13 in the flue gas, thereby being convenient for recovering the waste heat mixed in the flue gas, the water 13 heated after the heat exchange can be discharged to a designated container through the first water discharge pipe 6 and the second water discharge pipe 11 respectively by opening the first valve 7 and the second valve 12, and simultaneously, through flue gas and 13 reactions of water to reach the effect that 13 washes the flue gas of water, consequently prevent thoughtlessly in the flue gas harmful gas or the granule of complete combustion not, directly discharge the external world and cause the pollution, thereby make the utility model discloses have better ground environmental protection performance, filter screen 9 can filter the impurity of thoughtlessly in the flue gas, thereby improved the cleanliness factor of water 13, convenient to use more.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a biomass fuel boiler's flue gas waste heat recovery device, includes boiler body (1), its characterized in that: the boiler body (1) comprises a fuel boiler (2) and a chimney (3), the chimney (3) is arranged above the fuel boiler (2), a first waste heat recovery mechanism is arranged on the outer surface of the chimney (3), the first waste heat recovery mechanism comprises a first waste heat recovery box (4), a water adding pipe (5) is arranged on one side of the first waste heat recovery box (4), a first water discharging pipe (6) is arranged on the other side of the first waste heat recovery box (4), a first valve (7) is arranged on the outer surface of the first water discharging pipe (6), a second waste heat recovery mechanism is arranged at the end part of the chimney (3), the second waste heat recovery mechanism comprises a second waste heat recovery box (8), a filter screen (9) is arranged on the inner wall of the second waste heat recovery box (8), a smoke discharging pipe (10) is arranged on one side of the second waste heat recovery box (8), the lower extreme of second waste heat recovery case (8) is provided with second drain pipe (11), the surface of second drain pipe (11) is provided with second valve (12), one side of second waste heat recovery case (8) is provided with filler pipe (5).
2. The flue gas waste heat recovery device of the biomass fuel boiler according to claim 1, characterized in that: the chimney (3) is of a U-shaped structure.
3. The flue gas waste heat recovery device of the biomass fuel boiler according to claim 1, characterized in that: the first valve (7) and the second valve (12) are both solenoid valves.
4. The flue gas waste heat recovery device of the biomass fuel boiler according to claim 1, characterized in that: and water (13) is arranged in the second waste heat recovery tank (8), and the horizontal plane is lower than the horizontal plane where the smoke exhaust pipe (10) is located.
5. The flue gas waste heat recovery device of the biomass fuel boiler according to claim 4, characterized in that: the chimney (3) is located below the water level.
6. The flue gas waste heat recovery device of the biomass fuel boiler according to claim 1, characterized in that: the inner side of the first waste heat recovery mechanism is provided with a cavity, and a heat insulation material (14) is filled in the cavity.
7. The flue gas waste heat recovery device of the biomass fuel boiler according to claim 6, characterized in that: the heat insulation material (14) is rock wool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022805536.4U CN214426037U (en) | 2020-11-26 | 2020-11-26 | Biomass fuel boiler's waste heat from flue gas device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022805536.4U CN214426037U (en) | 2020-11-26 | 2020-11-26 | Biomass fuel boiler's waste heat from flue gas device |
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| Publication Number | Publication Date |
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| CN214426037U true CN214426037U (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022805536.4U Active CN214426037U (en) | 2020-11-26 | 2020-11-26 | Biomass fuel boiler's waste heat from flue gas device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498987A (en) * | 2023-06-28 | 2023-07-28 | 国电建三江前进生物质发电有限公司 | Waste heat recovery device and method for biomass power generation |
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2020
- 2020-11-26 CN CN202022805536.4U patent/CN214426037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116498987A (en) * | 2023-06-28 | 2023-07-28 | 国电建三江前进生物质发电有限公司 | Waste heat recovery device and method for biomass power generation |
| CN116498987B (en) * | 2023-06-28 | 2023-12-22 | 国电建三江前进生物质发电有限公司 | Waste heat recovery device and method for biomass power generation |
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