CN113587086B - Boiler combustion box waste heat recovery device and recovery method - Google Patents
Boiler combustion box waste heat recovery device and recovery method Download PDFInfo
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- CN113587086B CN113587086B CN202110846896.5A CN202110846896A CN113587086B CN 113587086 B CN113587086 B CN 113587086B CN 202110846896 A CN202110846896 A CN 202110846896A CN 113587086 B CN113587086 B CN 113587086B
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- heat
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- 238000011084 recovery Methods 0.000 title claims abstract description 97
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 80
- 239000002918 waste heat Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 36
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a waste heat recovery device for a boiler combustion box, which comprises a support, a boiler arranged on the support, a combustion box for heating the boiler, a heat conduction pipe arranged on one side of the boiler close to the combustion box, and a recovery member, wherein one end of the heat conduction pipe far away from the boiler is communicated with the combustion box, the recovery member comprises a heating furnace and a recovery pipe, one end of the recovery pipe is communicated with the combustion box, the other end of the recovery pipe is connected with the heating furnace, and a blocking member for blocking the heat conduction pipe and the recovery pipe is arranged on the top wall of the combustion box. According to the boiler combustion box waste heat recovery device, the heat conduction pipe and the recovery pipe are conveniently opened and plugged through the plugging member, so that the heating furnace is convenient to utilize waste heat in the combustion box, and the waste of resources is reduced.
Description
Technical Field
The invention relates to the field of fuel equipment, in particular to a boiler combustion box waste heat recovery device and a recovery method.
Background
The air in the air chamber is used to blow the burning material layer on the fixed grate or the chain grate into boiling state, so that the burning material layer and the coal particles are rolled up and down together to burn the coal-fired boiler, which is called as a fluidized bed combustion boiler for short.
In the related art, when a boiler is heated, a hood is inserted into an air hole of a grate, then air is blown into a boiler material layer by an air blower through the air hole, stirring and mixing of coal particles and air in the boiler material layer are particularly strong, and a burning material layer in a boiling state is as high as 1-1.5 m, if limestone is added into the boiling layer, sulfur in fuel can be fully removed through intense stirring, low-temperature corrosion can be avoided, and environmental pollution can be reduced.
In view of the above related art, the inventors consider that after the boiler is heated, the residual heat is lost with time because of the residual heat in the boiler layer, which results in waste of resources.
Disclosure of Invention
In order to facilitate the utilization of residual heat in a furnace material layer, the invention provides a boiler combustion box waste heat recovery device and a recovery method.
In a first aspect, the invention provides a waste heat recovery device for a boiler combustion box, which adopts the following technical scheme:
the utility model provides a boiler combustion case waste heat recovery device, includes the support, is located boiler and the combustion case that is used for right on the support the boiler heats, the boiler is close to combustion case one side is provided with the heat pipe, the heat pipe is kept away from boiler one end with the combustion case intercommunication still includes recovery component, recovery component includes heating furnace and recovery pipe, recovery pipe one end with the combustion case intercommunication, the other end with the heating furnace is connected, be provided with on the roof of combustion case and be used for right heat pipe and recovery pipe carry out the shutoff component of shutoff.
By adopting the technical scheme, when the waste heat in the combustion box is utilized, the plugging member is regulated, so that the heat conduction pipe is plugged by the plugging member, and meanwhile, the recovery pipe is communicated with the combustion box, so that the waste heat in the combustion box heats the heating furnace through the recovery pipe, and the utilization of the waste heat in the combustion box is realized; the designed boiler combustion box waste heat recovery device is convenient to open and plug the heat conduction pipe and the recovery pipe through the plugging member, so that the heating furnace is convenient to utilize waste heat in the combustion box, and waste of resources is reduced.
Optionally, the shutoff component includes mount, two blocks up, two connecting rods and drive the drive assembly of connecting rod motion, two the jam respectively with heat pipe and recovery tube are pegged graft, connecting rod one end with the jam is articulated, drive assembly is located on the mount, the mount is located on the roof of combustion chamber, the confession has all been seted up on heat pipe and the recovery tube the jack that the jam was pegged graft.
Through adopting above-mentioned technical scheme, when carrying out the shutoff to the heat pipe, adjust drive assembly, drive assembly drives its head rod motion, and the connecting rod drives the jam motion for the jam gets into the heat pipe through the jack, carries out the shutoff to the heat pipe, prevents the heat energy in the combustion case and heats the boiler, simultaneously, another connecting rod drives the jam motion, makes the jam pass through the jack motion to recovery pipe and combustion case intercommunication, and then realizes utilizing the waste heat in the combustion case, improves the utilization ratio of fuel.
Optionally, the drive assembly includes three pivot and four turnhandles, two of which pivot one end with the mount rotates to be connected, the other end with one of them the turnhandle is connected, remaining the pivot both ends all with the turnhandle is connected, the turnhandle keep away from pivot one side with the connecting rod is articulated, every connecting rod with adjacent two the turnhandle is kept away from pivot one side is articulated, and two the connecting rod is located respectively the pivot both sides.
Through adopting above-mentioned technical scheme, when the jam needs the motion, rotate the pivot, the pivot drives the turning handle and rotates, and the turning handle drives the connecting rod and rotates, and the connecting rod drives the jam motion, and then realizes the shutoff and the intercommunication of heat pipe and recovery pipe, and the shutoff of the heat pipe of being convenient for and the intercommunication of recovery pipe go on in step, reduces the loss of heat energy.
Optionally, the plug comprises a plugging section and a blocking section, wherein the cross-sectional area of the plugging section is larger than that of the blocking section, and the blocking section is hinged with the connecting rod.
Through adopting above-mentioned technical scheme, the segmentation setting of jam is convenient for block up at the embedding of heat pipe and recovery pipe, and then realizes carrying out the shutoff to heat pipe and recovery pipe, simultaneously, reduces the jam and breaks away from with heat pipe and recovery pipe through the spliced eye possibility, and then improves the sealing performance of heat pipe and recovery pipe.
Optionally, the inner wall of the side of the heat-conducting pipe and the recovery pipe away from each other is provided with a caulking groove for embedding the inserting section, and the caulking groove is communicated with the jack.
Through adopting above-mentioned technical scheme, the setting of caulking groove is convenient for peg graft section and heat pipe and recovery pipe's zonulae occludens, and then improves the sealing performance of jam to heat pipe and recovery pipe, and then improves the security of boiler and heating furnace.
Optionally, a groove for embedding the plugging section is formed in the inner wall of the side, close to the side, of the heat conducting pipe and the recovery pipe, and the groove is communicated with the jack.
Through adopting above-mentioned technical scheme, the setting of recess is convenient for when heat pipe and recovery pipe intercommunication, and the embedding of grafting section, and then improves the grafting section and to the sealed of heat pipe and recovery pipe, reduces thermal loss, and then reduces the waste of resource.
Optionally, at least one spring pin is arranged on the side wall of the plugging section, at least two fixing holes are formed in the heat conducting pipe and the recovery pipe, and the fixing holes are communicated with the caulking groove and the groove.
Through adopting above-mentioned technical scheme, the setting of spring pin and fixed orifices improves the stability of blockking up and being connected of heat pipe and recovery pipe, reduces the influence of pressure differential to the jam.
Optionally, a reflux component is arranged on the heating furnace, the reflux component comprises a reflux pipe and a pressure pump, one end of the reflux pipe is communicated with the heating furnace, the other end of the reflux pipe is communicated with the boiler, and the pressure pump is positioned on the reflux pipe.
Through adopting above-mentioned technical scheme, the setting of backward flow component is convenient for carry the hot water in the heating furnace through the force pump for in the hot water is injected into the boiler through the backward flow, and then reduces the heating duration of boiler, improves the heating efficiency of boiler.
In a second aspect, the invention provides a method for recovering waste heat of a boiler combustion box, which comprises the following steps: firstly, the heat conducting pipe is plugged through the plugging component, heat in the combustion box is prevented from being heated by the heat conducting pipe to the boiler, and then the recovery pipe is communicated with the combustion box, so that waste heat in the combustion box is heated by the recovery pipe to the heating furnace, and the utilization of the waste heat in the combustion box is realized.
Through adopting above-mentioned technical scheme, carry out the shutoff through shutoff subassembly to the heat pipe, prevent that the heat in the combustion case from passing through the heat pipe and heating the boiler, then with recovery pipe and combustion case intercommunication for waste heat in the combustion case heats the heating furnace through the recovery pipe, realizes the utilization to the waste heat in the combustion case, reduces the loss of waste heat, and then improves the utilization ratio of resource.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. the designed waste heat recovery device of the boiler combustion box is convenient for opening and plugging the heat conduction pipe and the recovery pipe through the plugging member, so that the heating furnace is convenient for utilizing the waste heat in the combustion box, and the waste of resources is reduced;
2. the blocking is arranged in a segmented mode, so that the blocking is convenient to embed in the heat conduction pipe and the recovery pipe, the heat conduction pipe and the recovery pipe are blocked, meanwhile, the possibility that the blocking is separated from the heat conduction pipe and the recovery pipe through the inserting holes is reduced, and the sealing performance of the heat conduction pipe and the recovery pipe is improved;
3. the arrangement of the spring pin and the fixing hole improves the stability of the connection between the blockage and the heat conduction pipe and the recovery pipe, and reduces the influence of the pressure intensity difference on the blockage.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is a cross-sectional view of an embodiment of the present invention.
Fig. 4 is an enlarged view of a portion B of fig. 3.
Reference numerals illustrate: 1. a bracket; 2. a boiler; 3. a combustion box; 4. a heat conduction pipe; 41. a jack; 42. a caulking groove; 43. a groove; 44. a fixing hole; 5. a recovery member; 51. a heating furnace; 52. a recovery pipe; 6. a blocking member; 61. a fixing frame; 62. blocking; 621. a plug section; 622. plugging the section; 63. a connecting rod; 64. a drive assembly; 641. a rotating shaft; 642. a rotating handle; 643. a handle; 7. a spring pin; 8. a reflow member; 81. a return pipe; 82. and a pressure pump.
Detailed Description
The invention is described in further detail below in connection with fig. 1-4.
In a first aspect, an embodiment of the invention discloses a boiler combustion box waste heat recovery device. Referring to fig. 1, the waste heat recovery device for the boiler combustion box comprises a support 1, a boiler 2 fixed on the support 1 through bolts, a combustion box 3 for heating the boiler 2 and a recovery member 5 for recovering waste heat in the combustion box 3, wherein the support 1 is welded on the top wall of the combustion box 3, so that the boiler 2 is conveniently fixed, the boiler 2 is conveniently heated, a heat conducting pipe 4 is welded on one side of the boiler 2 close to the combustion box 3, one end of the heat conducting pipe 4 away from the boiler 2 is communicated with the combustion box 3, the heat conducting pipe 4 is arranged, heat in the combustion box 3 is conveniently conveyed to the boiler 2, water in the boiler 2 is conveniently heated, and heat dissipation is reduced.
Referring to fig. 1, the recovery member 5 includes a heating furnace 51 and a recovery pipe 52, one end of the recovery pipe 52 is communicated with the combustion chamber 3, the other end of the recovery pipe 52 is connected with the heating furnace 51, two ends of the recovery pipe 52 are respectively welded with the top wall of the combustion chamber 3 and the bottom wall of the heating furnace 51, the heating furnace 51 is fixed on the bracket 1 through bolts, and the top wall of the combustion chamber 3 is provided with a plugging member 6 for plugging the heat conduction pipe 4 and the recovery pipe 52, so that the plugging of the heat conduction pipe 4 and the communication of the recovery pipe 52 are facilitated, waste heat in the combustion chamber 3 is conveniently utilized, and the utilization rate of resources is improved.
Referring to fig. 1 and 2, the plugging member 6 includes a fixing frame 61, two plugs 62, two connecting rods 63 and a driving component 64 for driving the connecting rods 63 to move, the heat conducting pipe 4 and the recovery pipe 52 are provided with insertion holes 41 for plugging the plugs 62, the two plugs 62 are respectively plugged with the heat conducting pipe 4 and the recovery pipe 52, one end of each connecting rod 63 is hinged with each plug 62, the connecting rods 63 and the plugs 62 are arranged in a one-to-one correspondence manner, the fixing frame 61 is welded on the top wall of the combustion box 3, the plugs 62 and the connecting rods 63 are arranged, the synchronous operation is conveniently carried out on the communication of the plugging of the heat conducting pipe 4 and the recovery pipe 52, the loss of residual heat is reduced, and the utilization rate of the residual heat in the combustion box 3 is improved.
Referring to fig. 2, the driving assembly 64 includes three rotating shafts 641 and four rotating handles 642, wherein one end of two rotating shafts 641 is rotatably connected with the fixing frame 61, the other end is welded with one rotating handle 642, both ends of the remaining rotating shafts 641 are welded with the rotating handles 642, one side of the rotating handle 642 far away from the rotating shafts 641 is hinged with the connecting rods 63, each connecting rod 63 is hinged with one side of the two adjacent rotating handles 642 far away from the rotating shafts 641, the two connecting rods 63 are respectively positioned at both sides of the rotating shafts 641, the two connecting rods 63 are distributed along the axial direction of the rotating shafts 641, the four rotating handles 642 are distributed along the axial direction of the rotating shafts 641, the axes of the three rotating shafts 641 are all perpendicular to the axes of the connecting rods 63, and one end of the rotating shaft 641 extending out of the fixing frame 61 is welded with a handle 643; the arrangement of the shaft 641 and the stem 642 facilitates the movement of the drive connection rod 63 and thus the movement of the plug 62.
Referring to fig. 3 and 4, plug 62 includes a plug segment 621 and a plug segment 622 integrally connected, and the cross-sectional area of plug segment 621 is larger than the cross-sectional area of plug segment 622, and the side of plug segment 622 away from plug segment 621 is hinged with connecting rod 63; the inner wall of the heat conduction pipe 4 and the recovery pipe 52 at the side far away from each other is provided with a caulking groove 42 for embedding the inserting section 621, and the caulking groove 42 is communicated with the inserting hole 41; a groove 43 for embedding the plugging section 621 is formed in the inner wall of the heat conduction pipe 4 and the recovery pipe 52, which are close to each other, and the groove 43 is communicated with the jack 41; the caulking groove 42 and the groove 43 are arranged, so that the insertion of the insertion section 621 is facilitated, the blocking and the communication of the heat conduction pipe 4 and the recovery pipe 52 are further realized, the waste heat in the combustion box 3 is further conveniently utilized, the loss of the waste heat is reduced, and the waste of resources is reduced.
Referring to fig. 3 and 4, at least one spring pin 7 is disposed on a side wall of the plugging section 621, in this embodiment, two spring pins 7 are welded on each plugging section 621, and the two spring pins 7 are located on two opposite side walls of the plugging section 621, at least two fixing holes 44 are formed on the heat conducting pipe 4 and the recovery pipe 52, in this embodiment, four fixing holes 44 are disposed on the heat conducting pipe 4 and the recovery pipe 52, and the fixing holes 44 are all communicated with the caulking groove 42 and the groove 43; the arrangement of the spring pin 7 and the fixing hole 44 improves the tightness of the connection of the plugging section 621 with the heat conducting pipe 4 and the recovery pipe 52, further improves the sealing performance of the plug 62 and reduces the heat dissipation.
Referring to fig. 1, a reflux member 8 is provided on a heating furnace 51, the reflux member 8 includes a reflux pipe 81 and a pressure pump 82, one end of the reflux pipe 81 is communicated with the heating furnace 51, the other end is communicated with a boiler 2, one end of the reflux pipe 81 is welded on the top wall of the heating furnace 51, one end is welded on the top wall of the boiler 2, and the pressure pump 82 is fixed on the side wall of the reflux pipe 81 through bolts; the arrangement of the pressure pump 82 and the return pipe 81 facilitates the injection of the heated water in the heating furnace 51 into the boiler 2, improves the heating efficiency of the boiler 2, and simultaneously facilitates the utilization of the waste heat in the combustion box 3.
The embodiment of the invention relates to a waste heat recovery device of a boiler combustion box, which comprises the following implementation principles: when the waste heat in the combustion box 3 is utilized, the handle 643 is rotated firstly, the handle 643 drives the rotating shaft 641 to rotate, the rotating shaft 641 drives the rotating handle 642 to rotate, the rotating handle 642 drives the connecting rod 63 to move, one connecting rod 63 drives the plug 62 to move, the plug 62 is separated from the groove 43 and is embedded in the caulking groove 42, the heat conducting pipe 4 is plugged, meanwhile, the other connecting rod 63 drives the plug 62 to move, the plug 62 is separated from the caulking groove 42 and is embedded in the groove 43, the recovery pipe 52 is communicated with the combustion box 3, and the waste heat in the combustion box 3 heats the heating furnace 51 through the recovery pipe 52, so that the utilization of the waste heat in the combustion box 3 is realized.
In a second aspect, the invention provides a method for recovering waste heat of a boiler combustion box, comprising the following steps: firstly, a handle 643 is rotated, the handle 643 drives a rotating shaft 641 to rotate, the rotating shaft 641 drives a rotating handle 642 to rotate, the rotating handle 642 drives a connecting rod 63 to move, a connecting rod 63 drives a plug 62 to move, so that the plug 62 is separated from a groove 43 and is embedded into a caulking groove 42, meanwhile, the plug 62 drives a spring pin 7 to move, so that the spring pin 7 is separated from a fixed hole 44 communicated with the groove 43 and is embedded into the fixed hole 44 communicated with the caulking groove 42, and the sealing of the tube cavity of a heat conducting tube 4 is realized; simultaneously, another connecting rod 63 drives another jam 62 motion for the jam 62 breaks away from the caulking groove 42 and imbeds in the recess 43, simultaneously, the jam 62 drives the spring pin 7 motion, makes the spring pin 7 break away from in the fixed orifices 44 with caulking groove 42 intercommunication, then imbeds in the fixed orifices 44 with recess 43 intercommunication, makes recovery pipe 52 and combustion case 3 intercommunication, realizes the recovery to the waste heat.
The above embodiments are not intended to limit the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (3)
1. The utility model provides a boiler combustion box waste heat recovery device, includes support (1), is located boiler (2) on support (1) and be used for right combustion box (3) of boiler (2) heating, boiler (2) are close to combustion box (3) one side is provided with heat pipe (4), heat pipe (4) are kept away from boiler (2) one end with combustion box (3) intercommunication, its characterized in that: the device comprises a combustion box (3), and is characterized by further comprising a recovery member (5), wherein the recovery member (5) comprises a heating furnace (51) and a recovery pipe (52), one end of the recovery pipe (52) is communicated with the combustion box (3), the other end of the recovery pipe is connected with the heating furnace (51), and a blocking member (6) for blocking the heat conduction pipe (4) and the recovery pipe (52) is arranged on the top wall of the combustion box (3);
the plugging member (6) comprises a fixing frame (61), two plugs (62), two connecting rods (63) and a driving assembly (64) for driving the connecting rods (63) to move, wherein the two plugs (62) are respectively spliced with the heat conducting pipe (4) and the recovery pipe (52), one end of each connecting rod (63) is hinged with the corresponding plug (62), the driving assembly (64) is located on the fixing frame (61), the fixing frame (61) is located on the top wall of the combustion box (3), and insertion holes (41) for splicing the corresponding plugs (62) are formed in the heat conducting pipe (4) and the recovery pipe (52);
the driving assembly (64) comprises three rotating shafts (641) and four rotating handles (642), wherein one end of each rotating shaft (641) is rotationally connected with the fixing frame (61), the other end of each rotating shaft is connected with one rotating handle (642), two ends of the remaining rotating shafts (641) are connected with the rotating handles (642), one side, far away from the rotating shafts (641), of each rotating handle (642) is hinged with the connecting rod (63), each connecting rod (63) is hinged with one side, far away from the rotating shafts (641), of two adjacent rotating handles (642), and the two connecting rods (63) are respectively positioned at two sides of the rotating shafts (641);
the plug (62) comprises a plugging section (621) and a plugging section (622), the cross-sectional area of the plugging section (621) is larger than that of the plugging section (622), and the plugging section (622) is hinged with the connecting rod (63);
the inner wall of the heat conduction pipe (4) and the recovery pipe (52) at one side far away from each other is provided with an embedding groove (42) for embedding the inserting section (621), and the embedding groove (42) is communicated with the jack (41);
a groove (43) for embedding the inserting section (621) is formed in the inner wall of the heat conducting pipe (4) and the inner wall of the recovery pipe (52) close to each other, and the groove (43) is communicated with the inserting hole (41);
at least one spring pin (7) is arranged on the side wall of the plug section (621), at least two fixing holes (44) are formed in the heat conducting pipe (4) and the recovery pipe (52), and the fixing holes (44) are communicated with the caulking groove (42) and the groove (43).
2. The boiler combustion box waste heat recovery device according to claim 1, wherein: the heating furnace (51) is provided with a reflux component (8), the reflux component (8) comprises a reflux pipe (81) and a pressure pump (82), one end of the reflux pipe (81) is communicated with the heating furnace (51), the other end of the reflux pipe is communicated with the boiler (2), and the pressure pump (82) is located on the reflux pipe (81).
3. A method for recovering waste heat of a boiler combustion box, a device for recovering waste heat of a boiler combustion box according to any one of claims 1-2, comprising the steps of: firstly, the heat conduction pipe (4) is plugged through the plugging member (6), heat in the combustion box (3) is prevented from being heated to the boiler (2) through the heat conduction pipe (4), then the recovery pipe (52) is communicated with the combustion box (3), so that waste heat in the combustion box (3) is heated to the heating furnace (51) through the recovery pipe (52), and the utilization of the waste heat in the combustion box (3) is realized.
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| CN202110846896.5A CN113587086B (en) | 2021-07-26 | 2021-07-26 | Boiler combustion box waste heat recovery device and recovery method |
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| CN202110846896.5A CN113587086B (en) | 2021-07-26 | 2021-07-26 | Boiler combustion box waste heat recovery device and recovery method |
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| CN113587086B true CN113587086B (en) | 2024-03-22 |
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| CN212962196U (en) * | 2020-09-07 | 2021-04-13 | 烟台益通机电设备有限公司 | Vertical boiler energy-saving device |
| CN112628840A (en) * | 2021-01-19 | 2021-04-09 | 永安千禾生物能源有限公司 | High-efficient combined heat and power generation system of living beings |
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