CN108730942B - Steam generator capable of utilizing flue gas for heating - Google Patents
Steam generator capable of utilizing flue gas for heating Download PDFInfo
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- CN108730942B CN108730942B CN201810576409.6A CN201810576409A CN108730942B CN 108730942 B CN108730942 B CN 108730942B CN 201810576409 A CN201810576409 A CN 201810576409A CN 108730942 B CN108730942 B CN 108730942B
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- flue gas
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- steam generator
- heat exchange
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 239000003546 flue gas Substances 0.000 title claims abstract description 136
- 238000010438 heat treatment Methods 0.000 title claims abstract description 46
- 239000000779 smoke Substances 0.000 claims abstract description 102
- 239000000428 dust Substances 0.000 claims abstract description 63
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 239000002918 waste heat Substances 0.000 claims abstract description 14
- 239000000446 fuel Substances 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 33
- 238000005192 partition Methods 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 9
- 241000220317 Rosa Species 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1861—Waste heat boilers with supplementary firing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chimneys And Flues (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to the technical field of steam generators, and discloses a steam generator capable of being heated by using flue gas, which comprises a boiler, a flue gas conveying pipeline, a steam generator body, a fan and a smoke dust filtering device, wherein a flue gas outlet at the top end of the side wall of the boiler is connected with one end of the flue gas conveying pipeline, a heating cavity and a combustion chamber are respectively arranged in the steam generator body from top to bottom, the top of the steam generator body is provided with the steam conveying pipeline communicated with the heating cavity, the combustion chamber is connected with the heating cavity through a heat conducting plate, a heat exchange box is fixedly arranged in the heating cavity and above the heat conducting plate, a first waveform heat exchange tube is arranged in the heating cavity and at the top of the heat exchange box, and a flue gas channel is arranged on the heat conducting. The invention can realize the utilization and auxiliary heating of the waste heat of the flue gas and the flue gas discharged by the flue gas, improve the steam preparation efficiency and reduce the energy consumption and the production cost.
Description
Technical Field
The invention relates to the technical field of steam generators, in particular to a steam generator capable of being heated by using flue gas.
Background
A steam generator is a mechanical device that heats water into steam using heat energy of fuel or other energy sources, and is widely used in various fields. For example: catering, sauna and the like, which brings great convenience to the life of people. Steam boilers, sometimes referred to as steam generators, are important components of steam power plants. Utility boilers, steam turbines and generators are the main machines of thermal power stations, and therefore utility boilers are important equipment for producing electric energy. Industrial boilers are indispensable equipment for providing steam required for production and heating in various industrial enterprises. Industrial boilers are large in number and consume a large amount of fuel. The waste heat boiler using high-temperature waste gas in the production process as a heat source plays an important role in energy conservation. Marine boilers are installed on various ships and the generated steam is used to drive steam-powered machines. Boilers can be classified according to different methods. The boilers can be divided into industrial boilers, power station boilers, marine boilers, locomotive boilers and the like according to purposes; boilers classified according to the boiler outlet pressure are low pressure, medium pressure, high pressure, ultra high pressure, subcritical pressure, supercritical pressure, and the like.
However, the existing steam generator cannot be matched with a flue gas conveying pipeline, the steam preparation efficiency is low by recovering flue gas waste heat and performing auxiliary heating, the temperature of flue gas discharged by the biomass steam generator is generally high, the flue gas is a main way for wasting energy of equipment, the energy consumption is about 15%, and flue gas carries a large amount of heat to dissipate and is not utilized, so that energy waste is caused, the resource consumption is increased, and the production cost is increased.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a steam generator capable of utilizing flue gas for heating, which solves the problems that the steam generator cannot recover and assist in heating flue gas waste heat, and flue gas carrying a large amount of heat is discharged by the steam generator, so that energy waste and production cost are increased.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a steam generator capable of utilizing flue gas for heating comprises a boiler, a flue gas conveying pipeline, a steam generator body, a fan and a smoke dust filtering device, wherein a flue gas outlet at the top end of the side wall of the boiler is connected with one end of the flue gas conveying pipeline, a heating cavity and a combustion chamber are respectively arranged in the steam generator body from top to bottom, a steam conveying pipeline communicated with the heating cavity is arranged at the top of the steam generator body, the combustion chamber is connected with the heating cavity through a heat conducting plate, a heat exchange box is fixedly arranged in the heating cavity and above the heat conducting plate, a first waveform heat exchange tube is arranged in the heating cavity and at the top of the heat exchange box, a flue gas channel is arranged on the heat conducting plate and is communicated with the bottom of the heat exchange box through a heat resistant pipeline, and the top of the heat exchange box is communicated with the bottom of the first waveform heat exchange, the top of the heat exchange box is provided with a plurality of groove-shaped openings, one end of the flue gas conveying pipeline, far away from the boiler, penetrates through and extends into the steam generator body and is connected with one end of the first corrugated heat exchange pipe, the steam generator body is provided with a flue gas recovery pipeline communicated with the other end of the first corrugated heat exchange pipe, one end of the flue gas recovery pipeline, far away from the first corrugated heat exchange pipe, is connected with waste heat recovery equipment, the steam generator body is respectively provided with a fuel inlet, a fuel flue gas outlet and an air inlet which are arranged corresponding to the combustion chamber, the fuel flue gas outlet is connected with the flue gas conveying pipeline through the fuel flue gas conveying pipeline, a first partition plate assembly is arranged inside one end, close to the fuel flue gas outlet, of the fuel flue gas conveying pipeline, and consists of a plurality of first partition plates which are uniformly arranged on the top of the inner wall of the fuel, the bottom of fuel flue gas pipeline just corresponds every the below of first baffle all is equipped with first smoke and dust and collects the fill, flue gas pipeline's inside from left to right is equipped with second baffle subassembly, second wave form heat exchange tube and third wave form heat exchange tube respectively, the second baffle subassembly be by a plurality of evenly install in the second baffle at flue gas pipeline inner wall top is constituteed, flue gas pipeline's bottom and the below that corresponds every second baffle all are equipped with the second smoke and dust and collect the fill, smoke and dust filter equipment's top is equipped with third smoke and dust and collects the fill, and is a plurality of the bottom of second smoke and dust collection fill all with the third smoke and dust is collected the smoke and dust and fight and is connected, be connected with smoke and dust material seal pump pipeline on the lateral wall of third smoke and dust collection fill, a plurality of first smoke and dust collection fill all with smoke and dust material seal pump pipeline connection, be equipped with respectively on the flue gas pipeline with the corresponding first pipeline import and the first wave form heat exchange tube that sets up and the first pipeline A pipeline export, the fan through first air conveying pipeline with first pipeline import intercommunication, first pipeline export through second air conveying pipeline with the air intlet intercommunication, last being equipped with respectively of flue gas conveying pipeline with second pipeline import and the second pipeline export that the third wave form heat exchange tube corresponds the setting, the intercommunication has the inlet tube on the second pipeline import, the inlet tube is kept away from flue gas conveying pipeline's one end is connected with water supply equipment, second pipeline export is located the inside in heating chamber.
Furthermore, the smoke and dust filter equipment include the rose box and from the top down set gradually in inside smoke and dust trapping apparatus of rose box, first filter layer, second filter layer and third filter layer, smoke and dust trapping apparatus includes annular delivery pipe, a plurality of shower nozzle and pipeline mounting, and is a plurality of the shower nozzle is followed the inboard circumferencial direction evenly installed of annular delivery pipe, annular delivery pipe pass through pipeline mounting fixed mounting in the inside of rose box, annular delivery pipe pass through the raceway with steam conveying pipeline connects.
Furthermore, the plurality of spray heads are obliquely arranged downwards by 30 degrees corresponding to the center of the annular water supply pipe.
Furthermore, a steam-water separator is arranged on the water delivery pipe.
Furthermore, the top of the steam generator body is respectively provided with a barometer, a thermometer and a safety valve which are arranged corresponding to the heating cavity.
Furthermore, the outer surfaces of the second wave-shaped heat exchange tube and the third wave-shaped heat exchange tube are both provided with irregularly arranged turbolators.
Further, the inner wall of the steam generator body is internally provided with a separation cavity, the flue gas conveying pipeline is provided with a gas outlet communicated with the separation cavity, and the steam generator body is provided with a gas outlet correspondingly arranged in the separation cavity.
Furthermore, a heat insulation layer is arranged inside the steam generator body and on the outer surface of the separation cavity.
Furthermore, the flue gas conveying pipeline is close to the inside one end of boiler and the fuel flue gas conveying pipeline is close to the inside micropore filter screen that all is equipped with of one end of combustion chamber.
(III) advantageous effects
The invention provides a steam generator capable of being heated by using flue gas, which has the following beneficial effects:
(1) this steam generator of usable flue gas heating, through the boiler, flue gas pipeline, the steam generator body, first wave form heat exchange tube, the cooperation setting of third wave form heat exchange tube and inlet tube, the inlet tube through connecting water supply equipment is to the inside transport cold water of the inside third wave form heat exchange tube of flue gas pipeline promptly, carry a large amount of thermal flue gas cooperation third wave form heat exchange tube through the inside transport of flue gas pipeline and carry out the heat transfer, the warm water after the heat transfer is carried to the inside heating intracavity of steam generator body, carry through flue gas pipeline to the inside flue gas that has a large amount of heats of the inside first wave form heat exchange tube of steam generator body, the supplementary combustion chamber heats the warm water of heating intracavity, can make the flue gas waste heat obtain abundant recycle, effectively improve the preparation efficiency of steam.
(2) The steam generator capable of utilizing the flue gas to heat is arranged by matching the flue gas conveying pipeline, the fan, the first air conveying pipeline, the second waveform heat exchange pipe, the heat exchange box, the combustion chamber and the fuel flue gas conveying pipeline, namely, air is conveyed to the inside of the second waveform heat exchange pipe through the fan and the first air conveying pipeline to exchange heat with the flue gas, the air after heat exchange is conveyed into the combustion chamber through the second air conveying pipeline to supply oxygen for fuel combustion, simultaneously, the energy is effectively saved, the combustion efficiency is improved, further, the steam preparation efficiency is improved, the fuel flue gas carrying a large amount of heat is conveyed to the flue gas conveying pipeline through the fuel flue gas conveying pipeline to recycle the flue gas, meanwhile, part of the fuel flue gas enters the heat exchange box and the first waveform heat exchange pipe, and the top of the heat exchange box is provided with a groove opening, so that the contact area with water in the heating, further improving the preparation efficiency of the steam and reducing the energy consumption and the production cost.
(3) The steam generator capable of being heated by using the flue gas is arranged by matching the flue gas conveying pipeline, the fuel flue gas conveying pipeline, the first clapboard component, the second clapboard component, the first smoke dust collecting hopper, the flue gas conveying pipeline, the second smoke dust collecting hopper, the smoke dust filtering device, the third smoke dust collecting hopper and the smoke dust material sealing pump conveying pipeline, namely, the first clapboard component is arranged to block and slow high-temperature flue gas, the fuel smoke dust is intercepted and falls into the first smoke dust collecting hopper by utilizing the gravity dust removing principle, and the smoke dust is conveyed to a third smoke dust collecting hopper through a smoke dust material sealing pump conveying pipeline, the second partition plate component conveys the smoke dust to the third smoke dust collecting hopper through the second smoke dust collecting hopper by utilizing the same principle, and the third smoke dust collecting hopper conveys the smoke dust to a smoke dust filtering device for collecting and filtering, so that the smoke dust is prevented from blocking the pipeline and the smoke dust waste heat recovery effect is prevented from being influenced.
(4) This steam generator of usable flue gas heating all is provided with the turbolator of irregular setting through the surface at second wave form heat exchange tube and third wave form heat exchange tube, utilizes the turbolator to hinder slow flue gas conveying speed, can fully carry out waste heat recovery and utilize.
(5) This steam generator of usable flue gas heating sets up the micropore filter screen through the input at flue gas pipeline and fuel flue gas pipeline, utilizes the micropore filter screen to block large granule smoke and dust and get into the pipeline, prevents effectively that the cigarette from piling up inside the pipeline, influences flue gas auxiliary efficiency.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of a flue gas conveying duct and a second corrugated heat exchange tube in the present invention;
FIG. 3 is a cross-sectional view of a flue gas conveying pipe and a third corrugated heat exchange tube in the present invention;
FIG. 4 is a cross-sectional view of a heat exchange box of the present invention;
FIG. 5 is a schematic view of a portion of a fuel flue gas transport duct according to the present invention;
FIG. 6 is a schematic view showing the internal structure of the soot filtering device according to the present invention;
FIG. 7 is a schematic view of the annular water supply pipe and the sprinkler head according to the present invention.
In the figure: 1. a boiler; 2. a flue gas conveying pipeline; 3. a steam generator body; 4. a fan; 5. a smoke dust filtering device; 501. a filter box; 502. a smoke and dust catching device; 5021. an annular water supply pipe; 5022. a spray head; 5023. a pipe fixing member; 503. a first filter layer; 504. a second filter layer; 505. a third filter layer; 6. a heating cavity; 7. a combustion chamber; 8. a steam delivery conduit; 9. a heat conducting plate; 10. a heat exchange box; 1001. a slot-shaped opening; 11. a first corrugated heat exchange tube; 12. a flue gas channel; 13. a flue gas recovery duct; 14. a fuel inlet; 15. a fuel flue gas outlet; 16. an air inlet; 17. a fuel flue gas delivery duct; 18. a first baffle plate assembly; 19. a first smoke dust collecting hopper; 20. a second baffle plate assembly; 21. a second corrugated heat exchange tube; 22. a third corrugated heat exchange tube; 23. a second smoke dust collecting hopper; 24. a third smoke collecting hopper; 25. the smoke material seals a pump conveying pipeline; 26. a first air delivery conduit; 27. a second air delivery conduit; 28. a water inlet pipe; 29. a water delivery pipe; 30. a steam-water separator; 31. a turbolator; 32. a cell.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, the present invention provides a technical solution: a steam generator capable of utilizing flue gas for heating comprises a boiler 1, a flue gas conveying pipeline 2, a steam generator body 3, a fan 4 and a smoke dust filtering device 5, wherein a flue gas outlet at the top end of the side wall of the boiler 1 is connected with one end of the flue gas conveying pipeline 2, a heating cavity 6 and a combustion chamber 7 are respectively arranged in the steam generator body 3 from top to bottom, a steam conveying pipeline 8 communicated with the heating cavity 6 is arranged at the top of the steam generator body 3, the combustion chamber 7 is connected with the heating cavity 6 through a heat-conducting plate 9, a heat exchange box 10 is fixedly arranged in the heating cavity 6 and above the heat-conducting plate 9, a first waveform heat exchange tube 11 is arranged in the heating cavity 6 and at the top of the heat exchange box 10, a flue gas channel 12 is arranged on the heat-conducting plate 9, and the flue gas channel 12 is communicated with the bottom of the heat exchange box 10 through, the top of the heat exchange box 10 is communicated with the bottom of the first corrugated heat exchange tube 11, the top of the heat exchange box 10 is provided with a plurality of groove-shaped openings 1001, one end of the flue gas conveying pipeline 2, which is far away from the boiler 1, penetrates through and extends into the steam generator body 3 and is connected with one end of the first corrugated heat exchange tube 11, the steam generator body 3 is provided with a flue gas recovery pipeline 13 communicated with the other end of the first corrugated heat exchange tube 11, one end of the flue gas recovery pipeline 13, which is far away from the first corrugated heat exchange tube 11, is connected with a waste heat recovery device, the steam generator body 3 is respectively provided with a fuel inlet 14, a fuel flue gas outlet 15 and an air inlet 16, which are arranged corresponding to the combustion chamber 7, the fuel flue gas outlet 15 is connected with the flue gas conveying pipeline 2 through a fuel flue gas conveying pipeline 17, and a first partition plate assembly 18 is arranged inside one end of the fuel flue gas conveying pipeline 17, the first clapboard component 18 consists of a plurality of first clapboards which are uniformly arranged at the top of the inner wall of the fuel smoke conveying pipeline 17, a first smoke collecting hopper 19 is arranged at the bottom of the fuel smoke conveying pipeline 17 and below each first clapboard, a second clapboard component 20, a second corrugated heat exchange pipe 21 and a third corrugated heat exchange pipe 22 are respectively arranged in the smoke conveying pipeline 2 from left to right, the second clapboard component 20 consists of a plurality of second clapboards which are uniformly arranged at the top of the inner wall of the smoke conveying pipeline 2, a second smoke collecting hopper 23 is arranged at the bottom of the smoke conveying pipeline 2 and below each second clapboard, a third smoke collecting hopper 24 is arranged at the top of the smoke filtering device 5, the bottom ends of the second smoke collecting hoppers 23 are connected with the third smoke collecting hopper 24, a smoke material sealing pump conveying pipeline 25 is connected to the side wall of the third smoke collecting hopper 24, a plurality of first smoke and dust are collected fill 19 all with smoke and dust material pump delivery pipeline 25 is connected, be equipped with respectively on the flue gas pipeline 2 with second wave form heat exchange tube 21 corresponds first pipeline import and the first pipeline export that sets up, fan 4 through first air conveying pipeline 26 with first pipeline import intercommunication, first pipeline export through second air conveying pipeline 27 with air intlet 16 intercommunication, be equipped with respectively on the flue gas pipeline 2 with third wave form heat exchange tube 22 corresponds second pipeline import and the second pipeline export that sets up, and the intercommunication has inlet tube 28 on the second pipeline import, inlet tube 28 keeps away from the one end of flue gas pipeline 2 is connected with water supply equipment, the second pipeline export is located the inside of heating chamber 6.
In addition, in one embodiment, the smoke and dust filtering device 5 includes a filtering box 501, and a smoke and dust catching device 502, a first filtering layer 503, a second filtering layer 504 and a third filtering layer 505 which are sequentially disposed inside the filtering box 501 from top to bottom, the smoke and dust catching device 502 includes an annular water supply pipe 5021, a plurality of spray heads 5022 and a pipe fixing piece 5023, the plurality of spray heads 5022 are uniformly installed along an inner circumferential direction of the annular water supply pipe 5021, the annular water supply pipe 5021 is fixedly installed inside the filtering box 501 through the pipe fixing piece 5023, and the annular water supply pipe 5021 is connected with the steam delivery pipe 8 through a water delivery pipe 29.
In addition, in one embodiment, a plurality of the nozzles 5022 are obliquely arranged downward by 30 ° with respect to the center of the ring-shaped water supply pipe 5021.
In addition, in one embodiment, a steam-water separator 30 is disposed on the water pipe 29.
In addition, in one embodiment, the top of the steam generator body 3 is provided with a barometer, a thermometer and a safety valve, respectively, which are provided corresponding to the heating cavity 6.
In addition, in one embodiment, the outer surfaces of the second corrugated heat exchange tube 21 and the third corrugated heat exchange tube 22 are both provided with irregularly arranged turbulators 31.
In addition, in an embodiment, a separation cavity 32 is disposed inside an inner wall of the steam generator body 3, an air outlet communicated with the separation cavity 32 is disposed on the flue gas conveying pipe 2, and an air outlet corresponding to the separation cavity 32 is disposed on the steam generator body 3.
In addition, in one embodiment, the inside of the steam generator body 3 and the outer surface of the separation chamber 32 are provided with an insulating layer.
In addition, in one embodiment, the inside of the end of the flue gas duct 2 close to the boiler 1 and the inside of the end of the fuel flue gas duct 17 close to the combustion chamber 7 are provided with a microporous screen.
When the steam generator is specifically applied, cold water is conveyed into the third corrugated heat exchange tube 22 inside the flue gas conveying pipeline 2 through the water inlet tube 28 connected with water supply equipment, flue gas carrying a large amount of heat conveyed inside the flue gas conveying pipeline 2 is matched with the third corrugated heat exchange tube 22 for heat exchange, warm water after heat exchange is conveyed into the heating cavity 6 inside the steam generator body 3, flue gas carrying a large amount of heat is conveyed into the first corrugated heat exchange tube 11 inside the steam generator body 3 through the flue gas conveying pipeline 2, the warm water in the heating cavity 6 is heated by the auxiliary combustion chamber 7, flue gas waste heat can be fully recycled, and the steam preparation efficiency is effectively improved; air is conveyed into the second corrugated heat exchange tube 21 through the fan 4 and the first air conveying pipeline 26 to exchange heat with flue gas, the air after heat exchange is conveyed into the combustion chamber 7 through the second air conveying pipeline 27 to supply oxygen for fuel combustion, meanwhile, energy is effectively saved, combustion efficiency is improved, and steam preparation efficiency is further improved; the first partition plate component 18 is arranged to block high-temperature smoke, fuel smoke dust is intercepted and falls into the first smoke dust collecting hopper 19 by utilizing a gravity dust removal principle and is conveyed into the third smoke dust collecting hopper 24 through the smoke dust material pump conveying pipeline 25, the second partition plate component 20 conveys the smoke dust into the third smoke dust collecting hopper 24 through the second smoke dust collecting hopper 23 by utilizing the same principle, and the third smoke dust collecting hopper 24 conveys the smoke dust into the smoke dust filtering device 5 for collecting and filtering in a unified manner, so that the smoke dust is prevented from blocking the pipeline, and the smoke waste heat recovery effect is prevented from being influenced; due to the fact that the irregularly-arranged turbolators 31 are arranged on the outer surfaces of the second corrugated heat exchange tube 21 and the third corrugated heat exchange tube 22, the turbolators 31 are used for slowing down the flue gas conveying speed, and waste heat can be fully recycled; set up the micropore filter screen through the input at flue gas pipeline 2 and fuel flue gas pipeline 17, utilize the micropore filter screen to block large granule smoke and dust and get into the pipeline, prevent effectively that the cigarette from piling up inside the pipeline, influence the supplementary person's rate of flue gas.
In another aspect of the present invention, the smoke filtering means 5 may be replaced with smoke collecting means for cost saving.
In conclusion, the waste heat utilization and auxiliary heating of the flue gas and the flue gas discharged by the flue gas can be realized, the steam preparation efficiency can be improved, and the energy consumption and the production cost can be reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents, it being noted that the electrical components appearing therein are each electrically connected to an external master controller and 220V mains, and the master controller may be a conventionally known device, such as a computer, which controls the electrical components.
Claims (9)
1. The steam generator capable of utilizing flue gas for heating is characterized by comprising a boiler (1), a flue gas conveying pipeline (2), a steam generator body (3), a fan (4) and a smoke dust filtering device (5), wherein a flue gas outlet at the top end of the side wall of the boiler (1) is connected with one end of the flue gas conveying pipeline (2), a heating cavity (6) and a combustion chamber (7) are respectively arranged in the steam generator body (3) from top to bottom, the top of the steam generator body (3) is provided with a steam conveying pipeline (8) communicated with the heating cavity (6), the combustion chamber (7) is connected with the heating cavity (6) through a heat conducting plate (9), the heating cavity (6) is fixedly provided with a heat exchange box (10) above the heat conducting plate (9), the heating cavity (6) is arranged in the heat exchange box (10), and the top of the heat exchange box (10) is provided with a first waveform heat exchange tube (11), the heat-conducting plate (9) is provided with a flue gas channel (12), the flue gas channel (12) is communicated with the bottom of the heat exchange box (10) through a heat-resistant pipeline, the top of the heat exchange box (10) is communicated with the bottom of the first corrugated heat exchange tube (11), the top of the heat exchange box (10) is provided with a plurality of groove-shaped openings (1001), one end, far away from the boiler (1), of the flue gas conveying pipeline (2) penetrates through and extends into the steam generator body (3) and is connected with one end of the first corrugated heat exchange tube (11), the steam generator body (3) is provided with a flue gas recovery pipeline (13) communicated with the other end of the first corrugated heat exchange tube (11), one end, far away from the first corrugated heat exchange tube (11), of the flue gas recovery pipeline (13) is connected with waste heat recovery equipment, and the steam generator body (3) is provided with a fuel inlet (14) and a fuel inlet (14) which are correspondingly arranged with the combustion chamber, A fuel smoke outlet (15) and an air inlet (16), wherein the fuel smoke outlet (15) is connected with the smoke conveying pipeline (2) through a fuel smoke conveying pipeline (17), a first partition plate assembly (18) is arranged inside one end, close to the fuel smoke outlet (15), of the fuel smoke conveying pipeline (17), the first partition plate assembly (18) is composed of a plurality of first partition plates which are uniformly arranged at the top of the inner wall of the fuel smoke conveying pipeline (17), a first smoke collecting hopper (19) is arranged at the bottom of the fuel smoke conveying pipeline (17) and below the first partition plates corresponding to each first partition plate, a second partition plate assembly (20), a second waveform heat exchange tube (21) and a third waveform heat exchange tube (22) are respectively arranged inside the smoke conveying pipeline (2) from left to right, the second partition plate assembly (20) is composed of a plurality of second partition plates which are uniformly arranged at the top of the inner wall of the smoke conveying pipeline (2), a second smoke collecting hopper (23) is arranged at the bottom of the smoke conveying pipeline (2) and below each corresponding second partition plate, a third smoke collecting hopper (24) is arranged at the top of the smoke filtering device (5), the bottom ends of the second smoke collecting hoppers (23) are connected with the third smoke collecting hopper (24), a smoke material sealing pump conveying pipeline (25) is connected to the side wall of the third smoke collecting hopper (24), the first smoke collecting hoppers (19) are connected with the smoke material sealing pump conveying pipeline (25), a first pipeline inlet and a first pipeline outlet which are arranged corresponding to the second waveform heat exchange tubes (21) are respectively arranged on the smoke conveying pipeline (2), the fan (4) is communicated with the first pipeline inlet through a first air conveying pipeline (26), and the first pipeline outlet is communicated with the air inlet (16) through a second air conveying pipeline (27), be equipped with on flue gas pipeline (2) respectively with third waveform heat exchange tube (22) correspond the second pipeline import and the second pipeline export that set up, the intercommunication has inlet tube (28) in the second pipeline import, inlet tube (28) are kept away from the one end of flue gas pipeline (2) is connected with water supply equipment, the second pipeline export is located the inside of heating chamber (6).
2. The steam generator capable of being heated by using flue gas as claimed in claim 1, wherein: the smoke and dust filter equipment (5) include rose box (501) and from the top down set gradually in inside smoke and dust trapping apparatus (502), first filter layer (503), second filter layer (504) and third filter layer (505) of rose box (501), smoke and dust trapping apparatus (502) are including annular delivery pipe (5021), a plurality of shower nozzle (5022) and pipeline mounting (5023), and it is a plurality of shower nozzle (5022) are followed the inboard circumferencial direction uniform mount of annular delivery pipe (5021), annular delivery pipe (5021) pass through pipeline mounting (5023) fixed mounting in the inside of rose box (501), annular delivery pipe (5021) pass through raceway (29) with steam delivery pipeline (8) are connected.
3. The steam generator capable of being heated by using flue gas as claimed in claim 2, wherein: the plurality of spray heads (5022) are obliquely arranged downwards by 30 degrees corresponding to the center of the annular water supply pipe (5021).
4. The steam generator capable of being heated by using flue gas as claimed in claim 2, wherein: and a steam-water separator (30) is arranged on the water conveying pipe (29).
5. The steam generator capable of being heated by using flue gas as claimed in claim 1, wherein: the top of the steam generator body (3) is respectively provided with a barometer, a thermometer and a safety valve which are arranged corresponding to the heating cavity (6).
6. The steam generator capable of being heated by using flue gas as claimed in claim 1, wherein: and the outer surfaces of the second corrugated heat exchange tube (21) and the third corrugated heat exchange tube (22) are both provided with irregularly arranged turbolators (31).
7. The steam generator capable of being heated by using flue gas as claimed in claim 1, wherein: the inner wall of steam generator body (3) is inside to be equipped with and to separate chamber (32), be equipped with on flue gas conveying pipeline (2) with separate the gas outlet that chamber (32) communicate, be equipped with on steam generator body (3) with separate the gas vent that chamber (32) correspond the setting.
8. The steam generator capable of being heated by using flue gas as claimed in claim 7, wherein: and a heat insulation layer is arranged inside the steam generator body (3) and on the outer surface of the separation cavity (32).
9. The steam generator capable of being heated by using flue gas as claimed in claim 1, wherein: flue gas conveying pipeline (2) are close to inside the one end of boiler (1) and fuel flue gas conveying pipeline (17) are close to inside the one end of combustion chamber (7) all is equipped with the micropore filter screen.
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| CN201810576409.6A CN108730942B (en) | 2018-06-06 | 2018-06-06 | Steam generator capable of utilizing flue gas for heating |
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| CN201810576409.6A CN108730942B (en) | 2018-06-06 | 2018-06-06 | Steam generator capable of utilizing flue gas for heating |
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| CN108730942A CN108730942A (en) | 2018-11-02 |
| CN108730942B true CN108730942B (en) | 2020-04-14 |
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| CN201053671Y (en) * | 2007-04-20 | 2008-04-30 | 赵文利 | Thick oil thermal recovery injection circulated fluid bed boiler system |
| JP6172984B2 (en) * | 2013-03-19 | 2017-08-02 | 株式会社サムソン | Water supply preheating boiler |
| JP6212401B2 (en) * | 2014-01-31 | 2017-10-11 | 三菱日立パワーシステムズ株式会社 | Exhaust gas treatment equipment |
| CN105485895B (en) * | 2015-12-29 | 2022-07-26 | 广州市祈雅典环保科技有限公司 | Built-in biomass gasification combustion water heater |
| CN107747726B (en) * | 2017-11-23 | 2023-09-22 | 赵文利 | Novel steam generator |
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Denomination of invention: A steam generator with flue gas heating Effective date of registration: 20210512 Granted publication date: 20200414 Pledgee: Mengcheng County revitalize the financing Company limited by guarantee Pledgor: ANHUI YIDA NEW ENERGY TECHNOLOGY Co.,Ltd. Registration number: Y2021980003501 |
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Date of cancellation: 20230720 Granted publication date: 20200414 Pledgee: Mengcheng County revitalize the financing Company limited by guarantee Pledgor: ANHUI YIDA NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2021980003501 |
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Denomination of invention: A steam generator that can be heated by flue gas Granted publication date: 20200414 Pledgee: Mengcheng County revitalize the financing Company limited by guarantee Pledgor: ANHUI YIDA NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2024980014942 |