CN214700766U - Biomass boiler flue gas waste heat recovery device - Google Patents
Biomass boiler flue gas waste heat recovery device Download PDFInfo
- Publication number
- CN214700766U CN214700766U CN202120590008.3U CN202120590008U CN214700766U CN 214700766 U CN214700766 U CN 214700766U CN 202120590008 U CN202120590008 U CN 202120590008U CN 214700766 U CN214700766 U CN 214700766U
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- Prior art keywords
- preheating
- pipe
- flue gas
- plate
- dust removal
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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 discloses a biomass boiler flue gas waste heat recovery device, wherein a spiral coil is positioned inside a preheating tank, a preheating cavity is arranged inside a preheating plate, a plurality of heating holes are arranged on the preheating cavity, the bottom of the preheating hopper corresponds to the plurality of heating holes, high-temperature flue gas is conveyed to the inside of a dust removal box through a flue gas pipe, is filtered sequentially through a filter plate and an activated carbon fiber layer, and then is conveyed into a gas inlet pipe through a blower, so that the spiral coil exchanges heat with cold water in the preheating tank, preheated water is discharged into a boiler through a water pump, flue gas with residual heat is conveyed into the preheating cavity of the preheating plate, biomass raw materials in the preheating hopper are preheated through the plurality of heating holes, and the preheating of boiler water and the biomass raw materials is completed by fully utilizing the heat in the high-temperature flue gas, and resource waste is reduced.
Description
Technical Field
The utility model relates to a flue gas preheats recovery unit technical field, especially relates to a biomass boiler flue gas waste heat recovery device.
Background
The biomass fuel is widely applied to the biomass boiler in a clean and environment-friendly manner, but the flue gas is still generated in the process of burning the biomass fuel, the part of the flue gas has certain heat, the temperature of the flue gas is generally designed to be 140 ℃ in 120-.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a biomass boiler flue gas waste heat recovery device, aim at solving the current biomass boiler among the prior art in the use, mostly remove dust with the flue gas and handle the back, directly discharge, fail the technical problem of the reasonable application of realization resource.
In order to achieve the purpose, the utility model discloses a biomass boiler flue gas waste heat recovery device, which comprises a flue gas pipe, a first support frame, a dust removal box, a blower, a preheating pipe, a preheating tank, a second support frame and a preheating hopper, wherein the dust removal box is detachably connected with the first support frame and is positioned above the first support frame, the flue gas pipe is connected with the dust removal box by a flange and is positioned at the bottom of the dust removal box, a filter plate and an active carbon fiber layer are sequentially arranged in the dust removal box from bottom to top, the blower is detachably connected with the dust removal box and is positioned at the top of the dust removal box, the top of the dust removal box is provided with a gas outlet, one end of the blower corresponds to the gas outlet, the other end of the blower is connected with the preheating pipe by a flange, the preheating pipe comprises an air inlet pipe, a spiral coil pipe and an air outlet pipe, the air inlet pipe is connected with a flange at one end of the air feeder far away from the air outlet, one end of the spiral coil pipe is connected with a flange of the air inlet pipe, the other end of the spiral coil pipe is connected with a flange of the air outlet pipe, the spiral coil pipe is positioned in the preheating tank, the air inlet pipe and the air outlet pipe both penetrate through the top of the preheating tank, the bottom of the preheating tank is provided with an water inlet pipe, the bottom of the preheating tank is provided with a water outlet pipe, a water pump is arranged on the water outlet pipe, one end of the air outlet pipe far away from the preheating tank is provided with a preheating plate, the preheating plate is detachably connected with the second supporting frame, a preheating cavity is arranged in the preheating plate, the preheating cavity corresponds to the air outlet pipe, the preheating cavity is provided with a plurality of heating holes, the preheating hopper is detachably connected with the preheating plate and is positioned above the preheating plate, the bottom of the preheating hopper corresponds to the plurality of heating holes.
The preheating tank is characterized in that a heat insulation layer is sleeved outside the preheating tank, two auxiliary support frames are further arranged at the top of the preheating tank, and the two auxiliary support frames are respectively connected with the air inlet pipe and the air outlet pipe in a clamping mode.
Each auxiliary supporting frame comprises a connecting plate, a vertical plate and clamping rings, the connecting plate is in threaded connection with the top of the preheating tank, one end of the vertical plate is fixedly connected with the connecting plate, the other end of the vertical plate is fixedly connected with the clamping rings, and the two clamping rings are respectively matched with the corresponding air inlet pipe and the corresponding air outlet pipe.
The number of the activated carbon fiber layers is multiple, the activated carbon fiber layers are evenly arranged above the filter plates, and the dust removal box is provided with an opening and closing door.
The bottom of the preheating tank is provided with a clamping frame, and the clamping frame corresponds to the bottom of the spiral coil.
The preheating plate comprises a heating plate and a connecting frame, the heating plate is provided with the preheating cavity, the connecting frame is fixedly connected with the heating plate and covers the periphery of the heating plate, the preheating hopper is detachably connected with the connecting frame, and one end of the heating plate is provided with a plurality of air holes.
The beneficial effects of the utility model are embodied in: the spiral coil is positioned in the preheating tank, a preheating cavity is arranged in the preheating plate, a plurality of heating holes are formed in the preheating cavity, the bottom of the preheating hopper corresponds to the plurality of heating holes, high-temperature flue gas is conveyed to the inside of the dust removal box through the flue gas pipe, is sequentially filtered by the filter plate and the activated carbon fiber layer, is conveyed into the air inlet pipe under the action of the air feeder after being filtered, is subjected to heat exchange with cold water in the preheating tank through the spiral coil, is preheated, is discharged into the boiler under the action of the water pump, and is conveyed into the preheating cavity of the preheating plate through the air outlet pipe after being subjected to heat exchange, and is used for preheating the biomass raw material in the preheating hopper through the plurality of heating holes, thereby the heat in the high-temperature flue gas is fully utilized to preheat the boiler water and the biomass raw material, and the resource waste is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a rear view of the biomass boiler flue gas waste heat recovery device of the present invention.
Fig. 2 is a cross-sectional view of the internal structure of fig. 1 taken along line B-B.
Fig. 3 is a schematic structural view of the present invention without the preheating hopper.
Fig. 4 is an enlarged view of a partial structure of fig. 3 a according to the present invention.
1-flue gas pipe, 2-first support frame, 3-dust removal box, 4-blower, 5-preheating pipe, 6-preheating tank, 7-second support frame, 8-preheating bucket, 9-filter plate, 10-activated carbon fiber layer, 11-air inlet pipe, 12-spiral coil pipe, 13-air outlet pipe, 14-water inlet pipe, 15-water outlet pipe, 16-water pump, 17-preheating cavity, 18-heating hole, 19-heat preservation layer, 20-auxiliary support frame, 21-connecting plate, 22-vertical plate, 23-clamping ring, 24-opening and closing door, 25-clamping frame, 26-heating plate, 27-connecting frame and 28-air hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 4, the utility model provides a biomass boiler flue gas waste heat recovery device, which comprises a flue gas pipe 1, a first support frame 2, a dust removal box 3, a blower 4, a preheating pipe 5, a preheating tank 6, a second support frame 7 and a preheating hopper 8, wherein the dust removal box 3 is detachably connected with the first support frame 2 and is positioned above the first support frame 2, the flue gas pipe 1 is flange-connected with the dust removal box 3 and is positioned at the bottom of the dust removal box 3, a filter plate 9 and an activated carbon fiber layer 10 are sequentially arranged in the dust removal box 3 from bottom to top, the blower 4 is detachably connected with the dust removal box 3 and is positioned at the top of the dust removal box 3, the top of the dust removal box 3 is provided with an air outlet, one end of the blower 4 corresponds to the air outlet, the other end of the blower 4 is flange-connected with the preheating pipe 5, the preheating pipe 5 comprises an air inlet pipe 11, a spiral coil pipe 12 and an air outlet pipe 13, the air inlet pipe 11 is in flange connection with one end of the air feeder 4 far away from the air outlet, one end of the spiral coil pipe 12 is in flange connection with the air inlet pipe 11, the other end of the spiral coil pipe 12 is in flange connection with the air outlet pipe 13, the spiral coil pipe 12 is positioned inside the preheating tank 6, the air inlet pipe 11 and the air outlet pipe 13 both penetrate through the top of the preheating tank 6, the bottom of the preheating tank 6 is provided with an inlet pipe 14, the bottom of the preheating tank 6 is provided with an outlet pipe 15, the outlet pipe 15 is provided with a water pump 16, one end of the air outlet pipe 13 far away from the preheating tank 6 is provided with a preheating plate, the preheating plate is detachably connected with the second support frame 7, a preheating cavity 17 is arranged inside the preheating plate, and the preheating cavity 17 corresponds to the air outlet pipe 13, the preheating cavity 17 is provided with a plurality of heating holes 18, the preheating hopper 8 is detachably connected with the preheating plate and is positioned above the preheating plate, and the bottom of the preheating hopper 8 corresponds to the plurality of heating holes 18.
In this embodiment, the flue gas pipe 1 is located at the bottom of the dust removing box 3, the dust removing box 3 is internally provided with a filter plate 9 and an activated carbon fiber layer 10 from bottom to top in sequence, one end of the spiral coil 12 is connected with the air inlet pipe 11 by a flange, the other end of the spiral coil 12 is connected with the air outlet pipe 13 by a flange, the spiral coil 12 is located inside the preheating tank 6, one end of the air outlet pipe 13, which is far away from the preheating tank 6, is provided with a preheating plate, the preheating plate is internally provided with a preheating cavity 17, the preheating cavity 17 corresponds to the air outlet pipe 13, the preheating cavity 17 is provided with a plurality of heating holes 18, the bottom of the preheating hopper 8 corresponds to the plurality of heating holes 18, high-temperature flue gas passes through the flue gas pipe 1 and is conveyed to the inside of the dust removing box 3, and sequentially passes through the filter plate 9 and the activated carbon fiber layer 10 after being filtered, under the action of the air feeder 4, filtered flue gas is conveyed into the air inlet pipe 11, then heat exchange is carried out between the spiral coil 12 and cold water in the preheating tank 6, the cold water is preheated, the preheated water is discharged into a boiler under the action of the water pump 16, residual heat flue gas after heat exchange is conveyed into the preheating cavity 17 of the preheating plate through the air outlet pipe 13, and biomass raw materials in the preheating hopper 8 are preheated through the plurality of heating holes 18, so that the heat in the high-temperature flue gas is fully utilized to preheat water for the boiler and the biomass raw materials, and resource waste is reduced.
Further, an insulating layer 19 is sleeved outside the preheating tank 6, two auxiliary support frames 20 are further arranged at the top of the preheating tank 6, and the two auxiliary support frames 20 are respectively connected with the air inlet pipe 11 and the air outlet pipe 13 in a clamping manner.
In this embodiment, the heat-insulating layer 19 is sleeved outside the preheating tank 6, so that heat loss of flue gas is reduced, and the preheating effect is better, the auxiliary support frames 20 are arranged on the air inlet pipe 11 and the air outlet pipe 13, and the auxiliary support frames 20 play a role of auxiliary support, so that the structure of the preheating pipe 5 is more stable.
Further, each auxiliary support frame 20 comprises a connecting plate 21, a vertical plate 22 and a clamping ring 23, the connecting plate 21 is in threaded connection with the top of the preheating tank 6, one end of the vertical plate 22 is fixedly connected with the connecting plate 21, the other end of the vertical plate 22 is fixedly connected with the clamping ring 23, and the two clamping rings 23 are respectively matched with the corresponding air inlet pipe 11 and the corresponding air outlet pipe 13.
In this embodiment, the connecting plate 21 and the locking ring 23 are both fixedly connected to the vertical plate 22, and are manufactured by an integral molding technique, so that the structure is firmer.
Furthermore, the number of the activated carbon fiber layers 10 is multiple, the activated carbon fiber layers 10 are uniformly arranged above the filter plates 9, and the dust removal box 3 is provided with an opening and closing door 24.
In this embodiment, set up the multilayer above filter 9 activated carbon fiber layer 10, to tiny particulate matter absorption more thoroughly in the flue gas, through set up on the dust removal case 3 the door 24 that opens and shuts is changing activated carbon fiber layer 10 and clearance during the attachment on the filter 9, it is more convenient.
Further, the bottom of the preheating tank 6 is provided with a clamping frame 25, and the clamping frame 25 corresponds to the bottom of the spiral coil 12.
In the present embodiment, the engagement frame 25 is provided at the bottom of the preheating tank 6, and when the spiral coil 12 is installed, the bottom of the spiral coil 12 is placed in the engagement frame 25, so that the spiral coil 12 is prevented from being impacted by water flow, and the structure is not stable enough.
Further, the preheating plate comprises a heating plate 26 and a connecting frame 27, the preheating cavity 17 is arranged on the heating plate 26, the connecting frame 27 is fixedly connected with the heating plate 26 and covers the periphery of the heating plate 26, the preheating hopper 8 is detachably connected with the connecting frame 27, and one end, far away from the heating plate 26, of the connecting frame 27 is provided with a plurality of air holes 28.
In this embodiment, the preheating hopper 8 is mounted on the connecting frame 27 by screws, a heating cavity is formed between the connecting frame 27 and the preheating hopper 8, the bottom of the preheating hopper 8 is heated by the flue gas still remaining with partial heat through the heating holes 18, so as to preheat the biomass raw material, and the flue gas after further heat exchange is discharged from the heating cavity through the air holes 28.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (6)
1. A biomass boiler flue gas waste heat recovery device, which is characterized in that,
the device comprises a flue gas pipe, a first support frame, a dust removal box, a blower, a preheating pipe, a preheating tank, a second support frame and a preheating hopper, wherein the dust removal box is detachably connected with the first support frame and is positioned above the first support frame, the flue gas pipe is connected with the dust removal box through a flange and is positioned at the bottom of the dust removal box, a filter plate and an active carbon fiber layer are sequentially arranged in the dust removal box from bottom to top, the blower is detachably connected with the dust removal box and is positioned at the top of the dust removal box, a gas outlet is formed in the top of the dust removal box, one end of the blower corresponds to the gas outlet, the other end of the blower is connected with the preheating pipe through a flange, the preheating pipe comprises a gas inlet pipe, a spiral coil pipe and a gas outlet pipe, the gas inlet pipe is connected with one end of the blower far away from the gas outlet through a flange, and one end of the spiral coil pipe is connected with the gas inlet pipe through a flange, the other end of spiral coil with outlet duct flange joint, spiral coil is located the inside of preheating tank, the intake pipe with the outlet duct all runs through the top of preheating tank, the bottom of preheating tank is provided with the inlet tube, the bottom of preheating tank is provided with the outlet pipe, be provided with the water pump on the outlet pipe, the outlet duct is kept away from the one end of preheating tank is provided with the preheating plate, the preheating plate with the connection can be dismantled to the second support frame, the inside of preheating plate is provided with preheats the chamber, preheat the chamber with the outlet duct is corresponding, preheat and be provided with a plurality of heating holes on the chamber, preheat fill with the connection can be dismantled to the preheating plate, and be located the top of preheating plate, the bottom of preheating fill is with a plurality of the heating hole is corresponding.
2. The biomass boiler flue gas waste heat recovery device of claim 1,
the preheating tank is characterized in that a heat insulation layer is sleeved outside the preheating tank, two auxiliary support frames are further arranged at the top of the preheating tank, and the two auxiliary support frames are respectively connected with the air inlet pipe and the air outlet pipe in a clamping mode.
3. The biomass boiler flue gas waste heat recovery device of claim 2,
every auxiliary stay frame all includes connecting plate, riser and block ring, the connecting plate with the top threaded connection of preheating tank, the one end of riser with connecting plate fixed connection, the other end of riser with block ring fixed connection, two block ring respectively with correspond the intake pipe with outlet duct looks adaptation.
4. The biomass boiler flue gas waste heat recovery device of claim 1,
the quantity on activated carbon fiber layer is the multilayer, and the multilayer activated carbon fiber layer evenly sets up the top of filter, be provided with the door that opens and shuts on the dust removal case.
5. The biomass boiler flue gas waste heat recovery device of claim 1,
and a clamping frame is arranged at the bottom of the preheating tank and corresponds to the bottom of the spiral coil.
6. The biomass boiler flue gas waste heat recovery device of claim 1,
the preheating plate comprises a heating plate and a connecting frame, the heating plate is provided with the preheating cavity, the connecting frame is fixedly connected with the heating plate and covers the periphery of the heating plate, the preheating hopper is detachably connected with the connecting frame, and one end of the heating plate is provided with a plurality of air holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120590008.3U CN214700766U (en) | 2021-03-23 | 2021-03-23 | Biomass boiler flue gas waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120590008.3U CN214700766U (en) | 2021-03-23 | 2021-03-23 | Biomass boiler flue gas waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214700766U true CN214700766U (en) | 2021-11-12 |
Family
ID=78526774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120590008.3U Expired - Fee Related CN214700766U (en) | 2021-03-23 | 2021-03-23 | Biomass boiler flue gas waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214700766U (en) |
-
2021
- 2021-03-23 CN CN202120590008.3U patent/CN214700766U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |