CN103344036A - Biogas boiler combustion system - Google Patents
Biogas boiler combustion system Download PDFInfo
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- CN103344036A CN103344036A CN2013103096497A CN201310309649A CN103344036A CN 103344036 A CN103344036 A CN 103344036A CN 2013103096497 A CN2013103096497 A CN 2013103096497A CN 201310309649 A CN201310309649 A CN 201310309649A CN 103344036 A CN103344036 A CN 103344036A
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
- C12M41/24—Heat exchange systems, e.g. heat jackets or outer envelopes inside the vessel
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/30—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration
- C12M41/36—Means for regulation, monitoring, measurement or control, e.g. flow regulation of concentration of biomass, e.g. colony counters or by turbidity measurements
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention provides a biogas boiler combustion system which comprises a boiler and a biogas tank communicated with a hearth of the boiler through a biogas supplying pipe. The biogas boiler combustion system further comprises a first heat exchanger. The first heat exchanger is connected with a smoke discharging pipeline of the boiler and the biogas tank and used for conducting heat exchange between smoke in the smoke discharging pipeline and biomass liquid in the biogas tank. According to the biogas boiler combustion system, the first heat exchanger is arranged between the biogas tank and the smoke discharging pipeline, so that the temperature needed by biomass liquid fermentation in the biogas tank is generated by heat energy in the high-temperature smoke, additional heating of the biogas tank is needless, recycling of the heat energy in the high-temperature smoke is achieved, and waste of the heat energy is reduced.
Description
Technical field
The present invention relates to the boiler technology field, particularly relate to a kind of methane boiler combustion system that realizes heat recovery.
Background technology
Boiler is a kind of energy conversion, converts the chemical energy of fuel to heat energy by fuel in the burner hearth internal combustion of boiler heated material is heated.Boiler can be divided into coal-burning boiler, oil burning boiler, gas fired-boiler etc. according to its fuel.
Along with the development of energy technology, it is more and more general to adopt living beings to make biogas, is also accepted by increasing people as the fuel of boiler with biogas, and this has not only alleviated energy burden, and has eliminated a large amount of biomass garbages.
In the process that biogas burns as boiler oil, because fuel is gaseous state and can burns rapidly in the burner hearth of boiler, the speed that high-temperature flue gas is discharged is also very fast, and the heat exchange that also is not able to do in time of a large amount of high-temperature flue gas namely is discharged from from smoke discharging pipe, causes a large amount of thermal waste.
Summary of the invention
In view of this, the invention provides a kind of methane boiler combustion system, the technical problem of the thermal waste that produces with the boiler exhaust gas process that solves the available technology adopting fuel gas.
For solving the problems of the technologies described above, the invention provides a kind of methane boiler combustion system, it is as follows to the invention provides technical scheme:
The methane boiler combustion system, described system comprises:
Boiler (1) and the biogas jar (7) that is connected with the burner hearth of described boiler (1) by air supply pipe (6);
Described system also comprises:
With first heat exchanger (4) that the smoke discharging pipe (3) of described boiler (1) is connected with described biogas jar (7), be used for high-temperature flue gas and described biogas jar (7) the endogenous substance liquid heat exchange of described smoke discharging pipe (3).
Preferably, described first heat exchanger (4) is for being full of the closed-loop tube of heat transferring medium, and the one end is in the described smoke discharging pipe (3), and the other end is under the interior living beings liquid levels of described biogas jar (7).
Preferably, described first heat exchanger (4) is tubular heat exchanger, it comprises the inner chamber that shell surrounds and is arranged on pump on the heat exchanger tube, described inner chamber communicates with described smoke discharging pipe (3), and pump carries living beings liquid and the high-temperature flue gas in the described inner chamber in the described biogas jar (7) to pass through the heat exchanger tube heat exchange.
Preferably, described system also comprises second heat exchanger (2) that links to each other with the admission line (5) of described smoke discharging pipe (3) and described boiler (1).
Preferably, described first heat exchanger (4) and second heat exchanger (2) position that is exposed to air is provided with heat-insulation layer.
Preferably, described system also comprises:
Between first heat exchanger (4) and boiler (1), be provided with the bifurcations of described smoke discharging pipe (3), then smoke discharging pipe (3) specifically comprises first arm (31) and second arm (32), described first heat exchanger (4) is connected with described first arm (31), realize high-temperature flue gas in described first arm (31) and the heat exchange of described biogas jar (7) endogenous substance liquid, described first arm (31) is provided with first flow control valve (10).
Preferably, described system also comprises:
Being provided with second flow control valve (8), second flow control valve (8) in described second arm (32) links to each other with thermometer in being arranged on described biogas jar (7) by flow controller (9), the interior temperature of described biogas jar (7) is during greater than preset value, and flow controller strengthens flue gas flow in second arm (32) by described second flow control valve of control (8);
And/or,
Described first flow control valve (10) links to each other by flow controller (9) thermometer interior with being arranged on described biogas jar (7), the interior temperature of described biogas jar (7) is during greater than preset value, and flow controller (9) reduces flue gas flow in first arm (31) by the described first flow control valve of control (10).
Preferably, described second heat exchanger (2) is positioned between described bifurcations and the described boiler (1).
Preferably, described system also comprises the soot blower that is arranged in the described smoke discharging pipe (3).
Preferably, be provided with agitating device in the described biogas jar (7).
The boiler combustion system that the embodiment of the invention provides is by arranging first heat exchanger between biogas jar and smoke discharging pipe, be that biogas jar endogenous substance carries out the household with the heat energy that carries in the high-temperature flue gas, to reach the required temperature of biomass ferment, need not the biogas jar is additionally heated, the recycling of carrying heat energy in the high-temperature flue gas of realizing discharging reduces the waste of heat energy.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention, below the accompanying drawing that uses in embodiment or the description of the Prior Art is done to introduce simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other embodiment diagram according to these accompanying drawings.
Fig. 1 is the structural representation of methane boiler combustion system embodiment 1 provided by the invention;
Fig. 2 is the structural representation of methane boiler combustion system embodiment 2 provided by the invention;
Fig. 3 is the structural representation of methane boiler combustion system embodiment 3 provided by the invention;
Fig. 4 is the structural representation of methane boiler combustion system embodiment 4 provided by the invention;
Fig. 5 is the structural representation of methane boiler combustion system embodiment 5 provided by the invention.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
With reference to figure 1, the structural representation of the methane boiler combustion system embodiment 1 that provides for the embodiment of the invention, described boiler combustion system mainly comprises boiler 1, biogas jar 7 and first heat exchanger 4, wherein biogas jar 7 is communicated with the burner hearth of boiler 1 by biogas air supply pipe 6, biogas jar 7 utilizes the living beings fluid with biogas generation, and the biogas that produces is transported to by biogas air supply pipe 6 in the burner hearth of boiler 1 and burns, boiler 1 has smoke discharging pipe 3 and admission line 5, first heat exchanger 4 is connected with biogas jar 7 with smoke discharging pipe 3, realize flue gas and biogas jar 7 endogenous substance liquid heat exchanges in the smoke discharging pipe 3, reach the required temperature of fermentation and biogas production after the living beings liquid in the biogas jar 7 is heated.
The methane boiler combustion system that the embodiment of the invention provides becomes the required temperature of biogas jar 7 endogenous substances fermentation by first heat exchanger 4 is set with the thermal power transfer in the high-temperature flue gas between biogas jar 7 and smoke discharging pipe 3, need not biogas jar 7 is additionally heated, realize the recycling of heat energy in the high-temperature flue gas, reduce the waste of heat energy.
Wherein, first heat exchanger 4 can adopt various types of heat exchangers, and the first concrete heat exchanger 4 can be for being full of the closed-loop tube of heat transferring medium, and an end of first heat exchanger 4 is in the smoke discharging pipe 3, and the other end is under the living beings liquid level in the biogas jar 7.Be full of heat transferring medium in first heat exchanger 4, in concrete heat transfer process, be back to after heat transferring medium is heated in smoke discharging pipe 3 in the biogas jar 7 and carry out heat exchange with living beings liquid, final realize utilizing the make a living purpose of material liq heating of flue gas carries in the smoke discharging pipe 3 heat energy, in order to improve the methane gas producing efficient of living beings, in the biogas jar 7 agitating device can be set, to realize the even intensification of the living beings in the biogas jar 7, this kind mode can improve and adds thermal effect, further improves gas producing efficiency.
First heat exchanger 4 can also be tubular heat exchanger, tubular heat exchanger comprises shell, pump and heat exchanger tube, the inner chamber of shell communicates with smoke discharging pipe 3, pump is arranged on the heat exchanger tube, power source as the living beings liquid flow in the biogas jar 7, when passing through the heat exchanger tube position that is arranged in shell inner cavity, the living beings liquid flow by the heating of the high-temperature flue gas of inner chamber, discharges from the outlet of shell behind the high-temperature flue gas heating living beings liquid.By above-mentioned heat transfer process as can be seen, this kind heat exchanger is realized the direct heat transfer of high-temperature flue gas and living beings liquid, can improve heat exchange efficiency.
In the process of boiler 1 work, biogas enters into boiler 1 by biogas air supply pipe 6 and burns, the admission line 5 of boiler 1 is sent to air and helps burning in the burner hearth, the height of the air themperature that admission line 5 is carried has direct relation with the efficiency of combustion of biogas, the temperature height, the efficiency of combustion height of biogas, on the contrary then the efficiency of combustion of biogas is low.For head it off, with reference to shown in Figure 2, the structural representation of methane boiler combustion system embodiment 2 also is provided for the embodiment of the invention, on the basis of embodiment 1, the methane boiler combustion system in the present embodiment comprises linking to each other with the admission line 5 of smoke discharging pipe 3 and boiler and realizes second heat exchanger 2 of gas converting heat among both.Second heat exchanger 2 can adopt various heat exchangers, can be identical with the species structure of first heat exchanger 4, and also can be different.
Because first heat exchanger 4 and second heat exchanger 2 all are exposed to airborne part, preferred for less thermal loss, the position that is exposed to air at first heat exchanger 4 and second heat exchanger 2 arranges heat-insulation layer, reduces thermal loss, improves heat exchange efficiency.
Contain a large amount of dust in the high-temperature flue gas that smoke discharging pipe 3 is discharged, inwall to first heat exchanger 4 and second heat exchanger 2 and smoke discharging pipe 3 all has more serious washing away, cause above-mentioned component wear serious, therefore first heat exchanger 4, second heat exchanger 2 and smoke discharging pipe 3 all adopt wear-resistant material to make, perhaps the surface that contacts with high-temperature flue gas of above-mentioned three is carried out Wear-resistant Treatment or wearing layer is set, and can improve the service life of first heat exchanger 4, second heat exchanger 2 and smoke discharging pipe 3 like this.In addition, in the process that high-temperature flue gas washes away, have the surface that a large amount of dust drops on first heat exchanger 4 and second heat exchanger 2, and then can influence both heat exchange efficiency, for head it off, the methane boiler combustion system that the embodiment of the invention provides can also comprise the blowing device (not shown) that is arranged in the smoke discharging pipe 3, can carry out periodicity or continuity winding-up to the position that first heat exchanger 4 and second heat exchanger 2 contact with high-temperature flue gas.
In the course of work of reality, need first heat exchanger 4 is carried out periodic inspection; if shutting down, boiler 1 will certainly influence ordinary production; for head it off; with reference to the accompanying drawings 3; the methane boiler combustion system embodiment 3 that provides for the embodiment of the invention; wherein smoke discharging pipe 3 further can comprise first arm 31 and second arm 32; first heat exchanger 4 is connected with first arm 31; realize flue gas in first arm 31 and the heat exchange of biogas jar 7 endogenous substance liquid; first arm 31 is provided with first flow control valve 10; when first heat exchanger 4 needs under the situation of maintenance; can directly first flow control valve 10 be closed (at this moment; described first flow control valve 10 can be a switch valve), make high-temperature flue gas from second arm 32, discharge.Because boiler 1 is not shut down running; consider to the air in the admission line 5 and heat; second heat exchanger 2 can be arranged between the gas approach of the bifurcations of first arm 31 and second arm 32 and smoke discharging pipe 3, namely is arranged on total transportation section of smoke discharging pipe 3.Certainly consider that second heat exchanger 2 also has the demand of maintenance, also second heat exchanger 2 can be arranged on first arm 31 or second arm 32, those skilled in the art can adjust the installation site of second heat exchanger 2 according to the working environment of concrete reality, do not do concrete restriction at this.
Living beings fluid with biogas generation in the biogas jar 7 needs certain temperature to guarantee, but this temperature need be within reasonable range, can not be unrestricted, and as long as first arm 31 has high-temperature flue gas to pass through, first heat exchanger 4 will constantly heat living beings liquid, and having biogas in the biogas jar 7, there is serious potential safety hazard undoubtedly in this.For this reason, the present invention also provides methane boiler combustion system embodiment 4, methane boiler combustion system in the present embodiment can also comprise the thermometer that is arranged in the biogas jar 7, and link to each other with thermometer, the flow controller 9(that control first flow control valve 10 is closed during greater than preset value of the temperature in the biogas jar 7 as shown in Figure 4), first flow control valve 10 in 9 pairs of first arms 31 of flow controller is controlled, and is in the rational temperature category to guarantee the living beings liquid in the biogas jar 7.
In addition, present embodiment can also address the above problem in the following way, with reference to shown in Figure 5, this methane boiler combustion system can also comprise second flow control valve 8, wherein: second flow control valve 8 is arranged in second arm 32, flow controller 9 links to each other with second flow control valve 8 with thermometer, when temperature is greater than preset value in the biogas jar 7, flow controller 9 strengthens the aperture of second flow control valve 8, and then reduce the high-temperature flue gas that enters into first arm 31, can realize that finally the temperature in the biogas jar 7 is in the rational category.Certainly, flow controller 9 can also be controlled first flow control valve 10 and second flow control valve 8 simultaneously, so that the temperature in the biogas jar 7 is in the rational category.
Need to prove that each embodiment adopts the mode of going forward one by one to describe in this specification, what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the methane boiler combustion system is characterized in that, described system comprises:
Boiler (1) and the biogas jar (7) that is connected with the burner hearth of described boiler (1) by air supply pipe (6);
Described system also comprises:
With first heat exchanger (4) that the smoke discharging pipe (3) of described boiler (1) is connected with described biogas jar (7), be used for high-temperature flue gas and described biogas jar (7) the endogenous substance liquid heat exchange of described smoke discharging pipe (3).
2. system according to claim 1, it is characterized in that, described first heat exchanger (4) is for being full of the closed-loop tube of heat transferring medium, and the one end is in the described smoke discharging pipe (3), and the other end is under the interior living beings liquid levels of described biogas jar (7).
3. system according to claim 1, it is characterized in that, described first heat exchanger (4) is tubular heat exchanger, it comprise shell that inner chamber communicates with described smoke discharging pipe (3), by pump carry living beings liquid flow in the described biogas jar (7) realize with described inner chamber in the heat exchanger tube of high-temperature flue gas heat exchange.
4. according to each described system of claim 1-3, it is characterized in that described system also comprises linking to each other with the admission line (5) of described smoke discharging pipe (3) and described boiler (1) and realizes second heat exchanger (2) of the gas converting heat among both.
5. system according to claim 4 is characterized in that, the position that described first heat exchanger (4) and second heat exchanger (2) are exposed to air is provided with heat-insulation layer.
6. system according to claim 4 is characterized in that, described system also comprises:
Between first heat exchanger (4) and boiler (1), be provided with the bifurcations of described smoke discharging pipe (3), then smoke discharging pipe (3) specifically comprises first arm (31) and second arm (32), described first heat exchanger (4) is connected with described first arm (31), realize high-temperature flue gas in described first arm (31) and the heat exchange of described biogas jar (7) endogenous substance liquid, described first arm (31) is provided with first flow control valve (10).
7. system according to claim 6 is characterized in that, described system also comprises:
Being provided with second flow control valve (8), second flow control valve (8) in described second arm (32) links to each other with thermometer in being arranged on described biogas jar (7) by flow controller (9), the interior temperature of described biogas jar (7) is during greater than preset value, and flow controller strengthens flue gas flow in second arm (32) by described second flow control valve of control (8);
And/or,
Described first flow control valve (10) links to each other by flow controller (9) thermometer interior with being arranged on described biogas jar (7), the interior temperature of described biogas jar (7) is during greater than preset value, and flow controller (9) reduces flue gas flow in first arm (31) by the described first flow control valve of control (10).
8. according to claim 6 or 7 described systems, it is characterized in that described second heat exchanger (2) is positioned between described bifurcations and the described boiler (1).
9. system according to claim 1 is characterized in that, described system also comprises the soot blower that is arranged in the described smoke discharging pipe (3).
10. system according to claim 1 is characterized in that, is provided with agitating device in the described biogas jar (7).
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| CN201310309649.7A CN103344036B (en) | 2013-07-19 | 2013-07-19 | Methane boiler combustion system |
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| CN201310309649.7A CN103344036B (en) | 2013-07-19 | 2013-07-19 | Methane boiler combustion system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106119090A (en) * | 2016-06-23 | 2016-11-16 | 乐山力朴能源环保科技有限公司 | A kind of anaerobic digestor being applied in bionethanation system |
| CN106881333A (en) * | 2017-03-03 | 2017-06-23 | 成都冠禹科技有限公司 | A kind of multipurpose organic garbage biochemical treating device based on new energy |
| CN107843003A (en) * | 2017-11-30 | 2018-03-27 | 孙义 | A kind of efficient and environment-friendly type methane boiler |
| CN109266543A (en) * | 2018-11-20 | 2019-01-25 | 黄冬艳 | A kind of methane production device of automatic adjustment |
| CN114540164A (en) * | 2022-03-09 | 2022-05-27 | 郭伟 | Movable integrated small and medium-sized fermentation device and method for treating organic waste |
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