CN214620105U - Heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat - Google Patents
Heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat Download PDFInfo
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- CN214620105U CN214620105U CN202120734978.6U CN202120734978U CN214620105U CN 214620105 U CN214620105 U CN 214620105U CN 202120734978 U CN202120734978 U CN 202120734978U CN 214620105 U CN214620105 U CN 214620105U
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Abstract
The utility model discloses a heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat, which comprises a biomass boiler and a heat energy recovery tower; an air inlet pipe on one side of the lower end of the heat energy recovery tower is connected with a flue gas outlet of the biomass boiler, and an exhaust pipe is arranged at the top end of the heat energy recovery tower; a plurality of heat exchange channels are arranged in the heat energy recovery tower, and the heat exchange channels are of vertical spatial spiral structures; a vertically extending heat exchange tube is arranged in the center of the heat exchange channel; the lower ends of the heat exchange tubes are communicated with a main water inlet tube, and the upper ends of the heat exchange tubes are communicated with a main water outlet tube. The utility model discloses can carry out waste heat recovery in order to supply with industry hot water or domestic water to the high temperature flue gas, and heat exchange efficiency is high, can fully retrieve the heat in the high temperature flue gas.
Description
Technical Field
The utility model relates to a biomass boiler field especially relates to a waste heat supplies heat recovery biomass boiler of industry hot water, domestic water.
Background
In order to utilize waste heat in high-temperature flue gas generated by a biomass boiler and improve the heat energy utilization efficiency, waste heat recovery is often performed on the high-temperature flue gas. However, the existing waste heat recovery device has low heat exchange efficiency, and is difficult to fully recover the heat in the high-temperature flue gas, so that the improvement is provided.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the not enough of existence among the prior art, the utility model provides a waste heat supply industry hot water, domestic water's heat recovery biomass boiler can carry out waste heat recovery in order to supply with industry hot water or domestic water to the high temperature flue gas, and heat exchange efficiency is high, can fully retrieve the heat in the high temperature flue gas.
The technical scheme is as follows: in order to achieve the above purpose, the heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat of the utility model comprises a biomass boiler and a heat energy recovery tower; an air inlet pipe on one side of the lower end of the heat energy recovery tower is connected with a flue gas outlet of the biomass boiler, and an exhaust pipe is arranged at the top end of the heat energy recovery tower; a plurality of heat exchange channels are arranged in the heat energy recovery tower, and the heat exchange channels are of vertical spatial spiral structures; a vertically extending heat exchange tube is arranged in the center of the heat exchange channel; the lower ends of the heat exchange tubes are communicated with a main water inlet tube, and the upper ends of the heat exchange tubes are communicated with a main water outlet tube.
Furthermore, the outer tube wall of the heat exchange tube is provided with a plurality of heat exchange fins.
Further, the cross section of the heat exchange channel is rectangular, and the heat exchange channel is named as channel cross section rectangle; the heat exchange fins are also rectangular, and the height of the heat exchange fins is half of that of the channel section rectangle; the heat exchange fins are arranged at equal angles along the spiral extension direction of the heat exchange channel, and comprise upper fins and lower fins which are arranged in a staggered manner; the upper edge of the upper fin is attached to the upper wall of the channel of the heat exchange channel, and the lower edge of the lower fin is attached to the lower wall of the channel of the heat exchange channel.
Furthermore, a first through seam is formed in the surface of the upper fin, and the first through seam inclines downwards along the spiral extending direction of the heat exchange channel from bottom to top; and a second through seam is formed on the surface of the lower fin, and the second through seam inclines upwards along the spiral extending direction of the heat exchange channel from bottom to top.
Furthermore, a dust filter screen is arranged below the interior of the heat energy recovery tower and is positioned between the main water inlet pipe and the air inlet pipe; a dust collecting hopper is arranged below the dust filtering net.
Furthermore, an adsorption layer is arranged above the interior of the heat energy recovery tower, and the adsorption layer is positioned between the main water outlet pipe and the exhaust pipe; and active carbon is arranged in the adsorption layer.
Has the advantages that: the utility model discloses a heat energy recovery biomass boiler of waste heat supply industry hot water, domestic water, make high temperature flue gas and medium water carry out the heat exchange through the heat recovery tower, retrieve the waste heat in the high temperature flue gas in order to supply industry hot water or domestic water; the heat exchange channel in the heat energy recovery tower is of a spatial spiral structure, the outer pipe wall of the heat exchange pipe is provided with a plurality of heat exchange fins, and the heat exchange fins are arranged along a spatial spiral line, so that the heat exchange efficiency of the heat energy recovery tower can be improved, and heat in high-temperature flue gas can be fully recovered.
Drawings
FIG. 1 is a schematic overall plan view of the present invention;
FIG. 2 is a schematic view of the internal structure of a heat recovery tower;
FIG. 3 is a schematic view showing the connection of heat exchange tubes with a total water inlet tube and a total water outlet tube;
FIG. 4 is a schematic diagram of a single heat exchange tube configuration;
FIG. 5 is a schematic view of a single heat exchange channel;
FIG. 6 is a first schematic view of the heat exchange tubes and heat exchange channels in combination;
FIG. 7 is a second schematic view of the heat exchange tubes and heat exchange channels in combination;
FIG. 8 is a schematic structural view of a first through slit and a second through slit;
in the figure: the device comprises a biomass boiler (1), an air inlet pipe (2), a dust hopper (3), a dust filtering net (4), a main water inlet pipe (5), an exhaust pipe (6), an adsorption layer (7), a main water outlet pipe (8), a heat exchange channel (9), a heat exchange pipe (10), a heat energy recovery tower (11), heat exchange fins (12), upper fins (13), lower fins (14), a first through seam (15) and a second through seam (16).
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
A heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat as shown in fig. 1 to 8 comprises a body of the biomass boiler 1 and a heat energy recovery tower 11. The air inlet pipe 2 on one side of the lower end of the heat energy recovery tower 11 is connected with the flue gas outlet of the biomass boiler 1, and high-temperature flue gas generated by the biomass boiler 1 enters the heat energy recovery tower 11 through the air inlet pipe 2. The top end of the heat energy recovery tower 11 is provided with an exhaust pipe 6 to exhaust the waste gas after heat exchange.
As shown in the attached fig. 1 and 2, a plurality of heat exchange channels 9 are arranged inside the heat energy recovery tower 11, and the heat exchange channels 9 are heat exchange areas of high-temperature flue gas and medium water. As shown in fig. 1 and 5, the heat exchange channels 9 are of a vertical spatial helical structure. A vertically extending heat exchange tube 10 is arranged in the center of the heat exchange channel 9. As shown in fig. 3, the lower ends of a plurality of heat exchange tubes 10 are all communicated with a main water inlet pipe 5, and the other end of the main water inlet pipe 5 passes through the side wall of the thermal energy recovery tower 11 and is communicated with an external water supply device. The upper ends of the heat exchange tubes 10 are communicated with a main water outlet pipe 8, and the other end of the main water outlet pipe 8 penetrates through the side wall of the heat energy recovery tower 11 and provides industrial hot water or domestic water to the outside.
Because the heat exchange channel 9 is of a space spiral structure, the residence time of the high-temperature flue gas in the heat exchange channel 9 can be prolonged, so that the high-temperature flue gas and the heat exchange tube 10 can fully exchange heat, and the utilization rate of waste heat is improved.
The outer tube wall of the heat exchange tube 10 is provided with a plurality of heat exchange fins 12, and the heat exchange fins 12 can increase the heat exchange area of the heat exchange tube 10 and high-temperature flue gas and can also slow down the flow rate of the flue gas, so that the heat exchange efficiency of the heat exchange tube 10 and the high-temperature flue gas is increased.
As shown in fig. 6 and 7, the heat exchange channels 9 have a rectangular cross section and are named channel cross-sectional rectangles. The heat exchanging ribs 12 are also rectangular in shape, and the height of the heat exchanging ribs 12 is half of the height of the channel cross-section rectangle. A plurality of said heat exchanging ribs 12 are arranged at equal angles along the direction of the helical extension of said heat exchanging channel 9, in the embodiment of the drawing at an angle of 90 degrees. The heat exchange fins 12 include upper fins 13 and lower fins 14 arranged in a staggered manner, and one lower fin 14 is arranged between two adjacent upper fins 13. As shown in fig. 6, 7 and 8, the upper edge of the upper rib 13 abuts against the channel upper wall of the heat exchange channel 9, and the lower edge of the lower rib 14 abuts against the channel lower wall of the heat exchange channel 9. By the arrangement of the upper fins 13 and the lower fins 14, the retention time of the high-temperature flue gas in the heat exchange channel 9 can be further prolonged, and the heat exchange tube 10 and the high-temperature flue gas are promoted to perform heat exchange fully.
As shown in fig. 8, a first through slit 15 is opened on the surface of the upper rib 13, and the first through slit 15 is inclined downwards along the spiral extending direction of the heat exchange channel 9 from bottom to top. The surface of the lower rib 14 is provided with a second through-slit 16, and the second through-slit 16 is inclined upwards along the spiral extending direction of the heat exchange channel 9 from bottom to top. The arrangement of the first through seam 15 and the second through seam 16 can improve the heat exchange area of the heat exchange fins 12, and the inclined arrangement of the first through seam 15 and the second through seam 16 can guide high-temperature flue gas to flow to the surface of the next heat exchange fin 12, so that the heat exchange efficiency is improved.
A dust filter 4 is arranged below the interior of the heat energy recovery tower 11, and the dust filter 4 is positioned between the main water inlet pipe 5 and the air inlet pipe 2; a dust collecting hopper 3 is arranged below the dust filtering net 4. The dust filtering net 4 filters dust particles in the high-temperature flue gas and collects the dust particles in the dust collecting hopper 3 for convenient cleaning.
An adsorption layer 7 is arranged above the interior of the heat energy recovery tower 11, and the adsorption layer 7 is positioned between the main water outlet pipe 8 and the exhaust pipe 6; and activated carbon is arranged in the adsorption layer 7. The harmful substance in the flue gas is absorbed by the adsorption layer 7, and the harmful substance is prevented from being discharged to the outside through the exhaust pipe 6.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (6)
1. A heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat is characterized in that: comprises a biomass boiler (1) and a heat energy recovery tower (11); an air inlet pipe (2) on one side of the lower end of the heat energy recovery tower (11) is connected with a flue gas outlet of the biomass boiler (1), and an exhaust pipe (6) is arranged at the top end of the heat energy recovery tower (11); a plurality of heat exchange channels (9) are arranged in the heat energy recovery tower (11), and the heat exchange channels (9) are of vertical space spiral structures; a vertically extending heat exchange tube (10) is arranged in the center of the heat exchange channel (9); the lower ends of the heat exchange tubes (10) are communicated with a main water inlet tube (5), and the upper ends of the heat exchange tubes (10) are communicated with a main water outlet tube (8).
2. The heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat according to claim 1, characterized in that: the outer tube wall of the heat exchange tube (10) is provided with a plurality of heat exchange fins (12).
3. The heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat according to claim 2, characterized in that: the section of the heat exchange channel (9) is rectangular and is named as channel section rectangle; the heat exchange fins (12) are also rectangular, and the height of the heat exchange fins (12) is half of that of the channel section rectangle;
the plurality of heat exchange fins (12) are arranged at equal angles along the spiral extending direction of the heat exchange channel (9), and the plurality of heat exchange fins (12) comprise upper fins (13) and lower fins (14) which are arranged in a staggered mode; the upper edge of the upper rib (13) is attached to the upper wall of the heat exchange channel (9), and the lower edge of the lower rib (14) is attached to the lower wall of the heat exchange channel (9).
4. The heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat according to claim 3, characterized in that: the surface of the upper rib (13) is provided with a first through seam (15), and the first through seam (15) inclines downwards along the spiral extending direction of the heat exchange channel (9) from bottom to top; the surface of the lower rib (14) is provided with a second through seam (16), and the second through seam (16) inclines upwards along the spiral extending direction of the heat exchange channel (9) from bottom to top.
5. The heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat according to claim 4, characterized in that: a dust filter screen (4) is arranged below the interior of the heat energy recovery tower (11), and the dust filter screen (4) is positioned between the main water inlet pipe (5) and the air inlet pipe (2); a dust collecting hopper (3) is arranged below the dust filtering net (4).
6. The heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat according to claim 5, characterized in that: an adsorption layer (7) is arranged above the interior of the heat energy recovery tower (11), and the adsorption layer (7) is positioned between the main water outlet pipe (8) and the exhaust pipe (6); and activated carbon is arranged in the adsorption layer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120734978.6U CN214620105U (en) | 2021-04-12 | 2021-04-12 | Heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120734978.6U CN214620105U (en) | 2021-04-12 | 2021-04-12 | Heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214620105U true CN214620105U (en) | 2021-11-05 |
Family
ID=78401271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120734978.6U Active CN214620105U (en) | 2021-04-12 | 2021-04-12 | Heat energy recovery biomass boiler for supplying industrial hot water and domestic water with waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214620105U (en) |
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2021
- 2021-04-12 CN CN202120734978.6U patent/CN214620105U/en active Active
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