CN214501294U - Smoke pipe type waste heat recovery boiler - Google Patents
Smoke pipe type waste heat recovery boiler Download PDFInfo
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- CN214501294U CN214501294U CN202120708212.0U CN202120708212U CN214501294U CN 214501294 U CN214501294 U CN 214501294U CN 202120708212 U CN202120708212 U CN 202120708212U CN 214501294 U CN214501294 U CN 214501294U
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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 smoke tube type waste heat recovery boiler, which comprises a boiler body, a smoke tube assembly and a heat exchange device, wherein the boiler body comprises a combustion chamber and a liquid carrying box, the liquid carrying box is a sealed cavity body, liquid water is loaded in the liquid carrying box, and the side wall of the liquid carrying box is hollow to form a waste heat insulation area surrounding the liquid carrying box; the combustion chamber is a sealed cavity with an opening at one side, penetrates through the side wall of the liquid carrying tank, is positioned in the liquid carrying tank, and the opening is exposed out of the liquid carrying tank; the smoke pipe assembly comprises a connecting pipe and a spiral pipe, and one end of the connecting pipe is communicated with the combustion chamber so as to discharge smoke in the combustion chamber; the spiral pipe with the connecting pipe is kept away from the one end intercommunication of combustion chamber, the utility model provides a recoverable waste heat that burns the flue gas of tobacco pipe formula waste heat recovery boiler.
Description
Technical Field
The utility model relates to an industrial boiler technical field especially relates to a tobacco pipe formula waste heat recovery boiler.
Background
The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, the origin of the boiler refers to a water container heated on fire, the boiler refers to a place where the fuel is combusted, and the hot water or the steam generated in the boiler can directly provide the heat energy required by industrial production and people life, can also be converted into mechanical energy through a steam power device, or can be converted into the electric energy through a generator. The boiler for supplying hot water is called a hot water boiler, is mainly used for life, and has a small amount of application in industrial production.
The boiler can discharge a large amount of flue gases in the in-process of burning the heating water body, carries a large amount of heats usually in the flue gas of emission, and prior art all discharges into the air after carrying thermal flue gas through the cooling usually, has caused thermal waste in the flue gas.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a tobacco pipe formula waste heat recovery boiler solves the extravagant problem of heat in the boiler emission flue gas.
In order to achieve the above object, the utility model provides a technical scheme of technical problem provides a tobacco pipe formula waste heat recovery boiler, include: the boiler comprises a boiler body, a smoke pipe assembly and a heat exchange device, wherein the boiler body comprises a combustion chamber and a liquid carrying tank, the liquid carrying tank is a sealed cavity and is loaded with liquid water, and the side wall of the liquid carrying tank is hollow to form a waste heat insulation area surrounding the liquid carrying tank; the combustion chamber is a sealed cavity with an opening at one side, penetrates through the side wall of the liquid carrying tank, is positioned in the liquid carrying tank, and the opening is exposed out of the liquid carrying tank; the smoke pipe assembly comprises a connecting pipe and a spiral pipe, and one end of the connecting pipe is communicated with the combustion chamber so as to discharge smoke in the combustion chamber; the spiral pipe is communicated with one end of the connecting pipe, which is far away from the combustion chamber; the heat exchange device comprises a heat exchange box, a circulating water pipe and a water flow driving piece, wherein the heat exchange box is a closed cavity body, wraps the outside of the spiral pipe and is filled with a liquid heat-conducting medium; one end, far away from the end connected with the connecting pipe, of the spiral pipe penetrates through the side wall of the heat exchange box and is exposed out of the heat exchange box; the circulating water pipe is respectively communicated with the heat exchange box and the waste heat insulation area, and the water flow driving piece is arranged between the circulating water pipe and the heat exchange box and is communicated with the circulating water pipe so as to drive a liquid heat-conducting medium to circularly flow among the heat exchange box, the circulating water pipe and the waste heat insulation area.
Preferably, the lateral wall of year liquid case includes year liquid layer and heat preservation, the heat preservation enclose locate carry around the liquid layer, and with carry the clearance between the liquid layer to form waste heat preservation district.
Preferably, the heat-insulating layer is provided with two circulating water flow holes, the two circulating water flow holes are respectively arranged on two opposite sides of the heat-insulating layer and penetrate through the heat-insulating layer to be communicated with the waste heat-insulating area; the circulating water pipe is connected with the circulating water flow holes on two sides of the heat preservation layer in an inserting mode so as to achieve communication with the waste heat preservation area.
Preferably, a connecting hole and a smoke exhaust hole are formed in the side wall of the liquid carrying box, the connecting hole and the smoke exhaust hole penetrate through the side wall of the liquid carrying box, the combustion chamber is connected with the connecting hole in an inserting mode, and the connecting pipe is connected with the smoke exhaust hole in an inserting mode so as to extend into the liquid carrying box and be communicated with the combustion chamber.
Preferably, the connecting hole and the smoke exhaust hole are respectively arranged on two opposite sides of the liquid carrying box.
Preferably, the joint of the combustion chamber and the connecting hole and the joint of the connecting pipe and the smoke exhaust hole are provided with sealing parts.
Preferably, the heat exchange box is provided with a smoke outlet, and the smoke outlet penetrates through the side wall of the heat exchange box and is communicated with the inside of the heat exchange box; one end of the spiral pipe, which is far away from the connecting pipe, is spliced with the smoke outlet and is exposed out of the heat exchange box.
Preferably, the smoke tube type waste heat recovery boiler further comprises a filtering device, and the filtering device is communicated with one end, exposed out of the heat exchange box, of the spiral tube.
Preferably, the liquid carrying tank, the heat exchange tank and the circulating water pipe are externally wrapped with heat insulation pieces.
Preferably, an air blower is arranged at an opening of the combustion chamber, and the air blower is communicated with the opening.
Compared with the prior art, the utility model provides a tobacco pipe formula waste heat recovery boiler has following beneficial effect:
utilize the flue gas to heat liquid heat-conducting medium to through the circulation flow of rivers driving piece drive liquid heat-conducting medium in waste heat preservation district, circulating pipe and heat transfer incasement, thereby realize the heat preservation to the carrier liquid case, reduce the loss of the in-process temperature of combustion chamber to the carrier liquid incasement liquid water heating, improved the efficiency of heating.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of a flue tube type waste heat recovery boiler according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the boiler body of FIG. 1;
FIG. 3 is a schematic view of the liquid carrying tank of FIG. 1;
FIG. 4 is a cross-sectional view of the fluid carrying tank of FIG. 3;
FIG. 5 is a schematic view of the smoke tube assembly of FIG. 1;
fig. 6 is a schematic structural diagram of the heat exchange device in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Please refer to fig. 1-6, the utility model provides a pair of tobacco pipe formula waste heat recovery boiler 10, it includes boiler body 20, tobacco pipe subassembly 30 and heat transfer device 40, tobacco pipe subassembly 30 communicates with boiler body 20 and heat transfer device 40 respectively, the flue gas after boiler body 20 burns is discharged through tobacco pipe subassembly 30, get into heat transfer device 40, carry out the heat exchange with heat transfer device 40, then on heat transfer to boiler body 20's lateral wall through heat transfer device 40, preheat and keep warm to boiler body 20, realize the recycle of flue gas waste heat.
Specifically, the boiler body 20 includes a combustion chamber 21 and a liquid carrying tank 22, the liquid carrying tank 22 is a sealed cavity, liquid water is loaded in the sealed cavity, and the side wall of the liquid carrying tank 22 is hollow, so as to form a residual heat insulation region 221 surrounding the liquid carrying tank 22. The combustion chamber 21 is a sealed cavity having an opening at one side, penetrates through a side wall of the liquid carrying tank 22, is located in the liquid carrying tank 22, and is exposed to the liquid carrying tank 22, and heats the liquid water in the liquid carrying tank 22 by heat generated by combustion in the combustion chamber 21.
The smoke tube assembly 30 includes a connection tube 31 and a spiral tube 32, and one end of the connection tube 31 is communicated with the combustion chamber 21 to discharge smoke in the combustion chamber 21 through the connection tube 31. The spiral pipe 32 is communicated with one end of the connecting pipe 31 far away from the combustion chamber 21, so that the flue gas discharged from the combustion chamber 21 enters the spiral pipe 32 from the connecting pipe 31 and is discharged from one end of the spiral pipe 32 far away from the connecting pipe 31.
The heat exchanging device 40 includes a heat exchanging box 41, a circulating water pipe 42 and a water flow driving member (not shown), wherein the heat exchanging box 41 is a closed cavity, and is wrapped outside the spiral pipe 32 and filled with a liquid heat conducting medium. The end of the spiral pipe 32, which is far away from the end communicating with the connection pipe 31, penetrates the side wall of the heat exchange box 41 and leaks outside the heat exchange box 41. The circulating water pipe 42 is respectively communicated with the heat exchange box 41 and the waste heat preservation area 221, and the water flow driving member is arranged between the circulating water pipe 42 and the heat exchange box 41 and communicated with the circulating water pipe 42 so as to drive the liquid heat-conducting medium to circularly flow among the heat exchange box 41, the circulating water pipe 42 and the waste heat preservation area 221.
It can be understood that, because the spiral pipe 32 is located in the heat exchange box 41, and one end of the spiral pipe 32, which is far away from the connection pipe 31, penetrates through and is exposed out of the heat exchange box 41, after the flue gas carrying heat in the combustion chamber 21 is discharged to the spiral pipe 32 through the connection pipe 31, heat exchange is performed between the flue gas and the liquid heat-conducting medium in the heat exchange box 41 in the spiral pipe 32, so as to heat the liquid heat-conducting medium in the heat exchange box 41. The water flow driving member extracts the heated liquid heat-conducting medium in the heat exchange tank 41 from the heat exchange tank 41, and the heated liquid heat-conducting medium passes through the circulating water pipe 42 and enters the waste heat insulation region 221 to insulate and preheat the carrier liquid tank 22. After the residual heat insulation area 221 is filled, the liquid heat-conducting medium flows back to the heat exchange box 41 from the circulating water pipe 42, so that the circulating flow and the heat exchange are realized.
It will be appreciated that in this embodiment the water flow drive is a water pump.
It can be understood that the spiral pipe 32 is made of heat conducting materials such as metal, and the passing time of the flue gas in the spiral pipe 32 after the flue gas is discharged by combustion can be prolonged by the shape of the spiral pipe 32, so that the heat exchange effect between the flue gas and the liquid water in the heat exchange box 41 is improved.
It is understood that the liquid heat-conducting medium can be water, oil, molten salt, etc. which can realize heat conduction.
Further, the lateral wall of the liquid carrying tank 22 includes a liquid carrying layer 222 and a heat insulating layer 223, the heat insulating layer 223 surrounds the liquid carrying layer 222, and a gap is formed between the heat insulating layer 223 and the liquid carrying layer 222, so as to form a waste heat insulating region.
It can be understood that, in this embodiment, the carrier liquid tank 22 is wholly a sealed cavity, and it includes roof (not seen in the figure), bottom plate and encloses and locate bottom plate and bottom plate lateral wall all around, through the lateral wall that sets up carrier liquid layer 222 and heat preservation 223 bilayer structure, forms waste heat preservation district 221 to utilize behind the flue gas heating liquid heat-conducting medium, utilize liquid heat-conducting medium to fill in waste heat preservation district 221, realize keeping warm and the effect of preheating.
Further, seted up circulating water hole 224 on the heat preservation 223, the quantity of circulating water hole 224 is two, sets up respectively in the relative both sides of heat preservation 223, and runs through heat preservation 223 and waste heat preservation district 221 intercommunication, and circulating water pipe 42 pegs graft with the circulating water hole 224 of heat preservation 223 both sides to the intercommunication with waste heat preservation district 221 is realized.
It can be understood that the number of the circulating water pipes 42 is also two, one end of each of the two circulating water pipes 42 is respectively inserted into the two circulating water holes 224, and the other end of each of the two circulating water pipes is communicated with the heat exchange box 41, so that the liquid heat-conducting medium is driven by the water flow driving member to circularly flow among the heat exchange box 41, the circulating water pipes 42 and the waste heat insulation area 221.
Furthermore, a connecting hole 225 and a smoke vent 226 are formed in the side wall of the liquid carrying tank 22, the connecting hole 225 and the smoke vent 226 both penetrate through the side wall of the liquid carrying tank 22, and the combustion chamber 21 is inserted into the connecting hole 225 to be fixedly connected into the liquid carrying tank 22. The connection pipe 31 is inserted into the smoke discharge hole 226 to extend into the carrier liquid tank 22 and communicate with the combustion chamber 21.
Further, the connection holes 225, i.e., the smoke discharge holes 226 are opened at opposite sides of the liquid carrying tank 22, respectively.
It is understood that the connection holes 225 and the smoke discharge holes 226 both penetrate through the side wall of the liquid carrying box 22, that is, the connection holes 225 and the smoke discharge holes 226 both penetrate through the liquid carrying layer 222 and the insulating layer 223.
It can be understood that the shape of the combustion chamber 21 is adapted to the shape of the connection hole 225, and the shape of the connection pipe 31 is adapted to the shape of the smoke discharge hole 226, so that the connection hole 225 and the smoke discharge hole 226 are closed after the combustion chamber 21 is inserted into the connection hole 225 and the connection pipe 31 is inserted into the smoke discharge hole 226.
It can be understood that, after the combustion chamber 21 is inserted into the connection hole 225, the opening is exposed out of the liquid carrying tank 22, so as to add fuel into the combustion chamber 21 through the opening to perform combustion heating in the combustion chamber 21, or flame generated by directly utilizing gas is sprayed into the combustion chamber 21 from the opening, as long as the combustion heating in the combustion chamber can be realized, so as to heat the liquid water in the liquid carrying tank 22.
Furthermore, the joints of the combustion chamber 21 and the connection hole 225 and the joints of the connection pipe 31 and the smoke exhaust hole 226 are provided with sealing elements (not shown) to increase the sealing performance of the joints of the combustion chamber 21 and the connection hole 225 and the joints of the connection pipe 31 and the smoke exhaust hole 226.
It will be appreciated that the seal may be a rubber gasket.
Further, a smoke outlet 411 is formed in the heat exchange box 41, and the smoke outlet 411 penetrates through the side wall of the heat exchange box 41 and is communicated with the inside of the heat exchange box 41. One end of the spiral pipe 32 far away from the connecting pipe 31 is inserted into the smoke outlet 411 and exposed out of the heat exchange box 41.
It is understood that, in the present embodiment, the heat exchange box 41 is a closed cavity formed by a top plate (not shown), a bottom plate and side walls surrounding the top plate and the bottom plate.
Further, the flue pipe type heat recovery boiler 10 further includes a filtering device (not shown), which is communicated with one end of the spiral pipe 32 exposed to the heat exchange box 41, so as to filter the flue gas exhausted from the spiral pipe 32.
It will be understood that, although the flue gas discharged from the spiral duct 32 is cooled after heat exchange, impurities may be present therein, and the direct discharge into the air may cause environmental pollution, so that it is filtered by a filtering device.
It is understood that the filtering device can be activated carbon, a filter screen, and other devices or components capable of filtering impurities in the flue gas.
Further, the liquid-carrying tank 22, the heat exchange tank 41 and the circulating water pipe 42 are externally wrapped with heat insulators (not shown) to prevent heat dissipation.
It is understood that the insulation may be foam.
Further, a blower (not shown) is provided at an opening of the combustion chamber 21, and the blower 21 is communicated with the opening of the combustion chamber 21 to improve the combustion efficiency of the combustion chamber 21.
The utility model discloses a theory of operation does: first, the liquid water in the carrier liquid tank 22 is heated by the heat generated by combustion in the combustion chamber 21, and flue gas carrying heat is generated during the combustion. The flue gas exits the combustion chamber 21 through the connection pipe 31, enters the spiral pipe 32 through the connection pipe 31, and exchanges heat with the liquid heat-conducting medium in the heat exchange box 41 in the spiral pipe 32, so as to heat the liquid heat-conducting medium.
Then, the water flow driving member starts to work, the heated liquid heat-conducting medium in the heat exchange box 41 is extracted into the waste heat insulation area 221 through the circulating water pipe 42, and the liquid heat-conducting medium forms a circulating flow between the heat exchange box 41 and the circulating water pipe 42, namely the waste heat insulation area 221 through the work of the water flow driving member, so that the heated liquid heat-conducting medium is used for insulating the liquid carrying box 22, the loss of heat in the liquid carrying box 22 in the combustion process is reduced, and the heating efficiency of the boiler body 20 is improved. Meanwhile, when the combustion chamber 21 stops working, certain heat is still reserved in the liquid heat-conducting medium, and the preheating effect can be provided for the next working of the combustion chamber.
Compared with the prior art, the utility model provides a tobacco pipe formula waste heat recovery boiler has following beneficial effect:
utilize the flue gas to heat liquid heat-conducting medium to through the circulation flow of rivers driving piece drive liquid heat-conducting medium in waste heat preservation district, circulating pipe and heat transfer incasement, thereby realize the heat preservation to the carrier liquid case, reduce the loss of the in-process temperature of combustion chamber to the carrier liquid incasement liquid water heating, improved the efficiency of heating.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A smoke tube type waste heat recovery boiler is characterized by comprising:
the boiler comprises a boiler body, a smoke pipe assembly and a heat exchange device, wherein the boiler body comprises a combustion chamber and a liquid carrying tank, the liquid carrying tank is a sealed cavity and is loaded with liquid water, and the side wall of the liquid carrying tank is hollow to form a waste heat insulation area surrounding the liquid carrying tank; the combustion chamber is a sealed cavity with an opening at one side, penetrates through the side wall of the liquid carrying tank, is positioned in the liquid carrying tank, and the opening is exposed out of the liquid carrying tank;
the smoke pipe assembly comprises a connecting pipe and a spiral pipe, and one end of the connecting pipe is communicated with the combustion chamber so as to discharge smoke in the combustion chamber; the spiral pipe is communicated with one end of the connecting pipe, which is far away from the combustion chamber;
the heat exchange device comprises a heat exchange box, a circulating water pipe and a water flow driving piece, wherein the heat exchange box is a closed cavity body, wraps the outside of the spiral pipe and is filled with a liquid heat-conducting medium; one end, far away from the end connected with the connecting pipe, of the spiral pipe penetrates through the side wall of the heat exchange box and is exposed out of the heat exchange box; the circulating water pipe is respectively communicated with the heat exchange box and the waste heat insulation area, and the water flow driving piece is arranged between the circulating water pipe and the heat exchange box and is communicated with the circulating water pipe so as to drive a liquid heat-conducting medium to circularly flow among the heat exchange box, the circulating water pipe and the waste heat insulation area.
2. The flue tube type heat recovery boiler of claim 1, wherein:
the lateral wall of carrying the liquid case includes year liquid layer and heat preservation, the heat preservation encloses to be located carry around the liquid layer, and with carry the clearance between the liquid layer to form waste heat preservation district.
3. The flue tube type heat recovery boiler of claim 2, wherein:
the heat preservation layer is provided with two circulating water flow holes which are respectively arranged on two opposite sides of the heat preservation layer and penetrate through the heat preservation layer to be communicated with the waste heat preservation area; the circulating water pipe is connected with the circulating water flow holes on two sides of the heat preservation layer in an inserting mode so as to achieve communication with the waste heat preservation area.
4. The flue tube type heat recovery boiler of claim 1, wherein:
the side wall of the liquid carrying box is provided with a connecting hole and a smoke exhaust hole, the connecting hole and the smoke exhaust hole penetrate through the side wall of the liquid carrying box, the combustion chamber is connected with the connecting hole in an inserting mode, and the connecting pipe is connected with the smoke exhaust hole in an inserting mode so as to extend into the liquid carrying box and be communicated with the combustion chamber.
5. The flue tube type heat recovery boiler of claim 4, wherein:
the connecting holes and the smoke exhaust holes are respectively arranged on two opposite sides of the liquid carrying box.
6. The flue tube type heat recovery boiler of claim 4, wherein:
and sealing parts are arranged at the splicing part of the combustion chamber and the connecting hole and the splicing part of the connecting pipe and the smoke exhaust hole.
7. The flue tube type heat recovery boiler of claim 1, wherein:
a smoke outlet is formed in the heat exchange box, penetrates through the side wall of the heat exchange box and is communicated with the inside of the heat exchange box; one end of the spiral pipe, which is far away from the connecting pipe, is spliced with the smoke outlet and is exposed out of the heat exchange box.
8. The flue tube type heat recovery boiler of claim 1, wherein:
the smoke tube type waste heat recovery boiler further comprises a filtering device, and the filtering device is communicated with one end, exposed out of the heat exchange box, of the spiral tube.
9. The flue tube type heat recovery boiler of claim 1, wherein:
and the liquid carrying box, the heat exchange box and the circulating water pipe are externally wrapped with heat insulation pieces.
10. The flue tube type heat recovery boiler of claim 1, wherein:
an air blower is arranged at an opening of the combustion chamber and communicated with the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120708212.0U CN214501294U (en) | 2021-04-07 | 2021-04-07 | Smoke pipe type waste heat recovery boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120708212.0U CN214501294U (en) | 2021-04-07 | 2021-04-07 | Smoke pipe type waste heat recovery boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214501294U true CN214501294U (en) | 2021-10-26 |
Family
ID=78202551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120708212.0U Active CN214501294U (en) | 2021-04-07 | 2021-04-07 | Smoke pipe type waste heat recovery boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214501294U (en) |
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2021
- 2021-04-07 CN CN202120708212.0U patent/CN214501294U/en active Active
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