CN220205702U - Methane-burning steam boiler - Google Patents
Methane-burning steam boiler Download PDFInfo
- Publication number
- CN220205702U CN220205702U CN202322256346.5U CN202322256346U CN220205702U CN 220205702 U CN220205702 U CN 220205702U CN 202322256346 U CN202322256346 U CN 202322256346U CN 220205702 U CN220205702 U CN 220205702U
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- Prior art keywords
- condenser
- boiler
- pipeline
- water
- flue gas
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 34
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 239000012528 membrane Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims 2
- 238000009413 insulation Methods 0.000 claims 1
- 239000008399 tap water Substances 0.000 abstract description 3
- 235000020679 tap water Nutrition 0.000 abstract description 3
- 206010022000 influenza Diseases 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000202567 Fatsia japonica Species 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Chimneys And Flues (AREA)
Abstract
The utility model relates to the technical field of boilers, in particular to a methane-fired steam boiler which comprises a boiler body, wherein a flue gas pipeline is connected to a smoke outlet at the top of the boiler body, a hearth is arranged in the boiler body, a plurality of convection tube bundles are arranged on one side of the hearth, convection flues are arranged on the outer sides of the convection tube bundles, an energy saver and a condenser are sequentially arranged on the flue gas pipeline, and a water tank is arranged outside the energy saver and the condenser. In the methane-fired steam boiler, tap water enters a low-temperature bin through water treatment equipment, then enters a condenser coiled pipe through a circulating pump to exchange heat with low-temperature flue gas at the tail part of the boiler outside the pipe, hot water heated by the condenser is sent to a high-temperature bin, the hot water is pumped into an energy-saving device coiled pipe through a water supply pump to be secondarily heated with high-temperature flue gas at the tail part of the boiler, and after being heated, the hot water enters a boiler body, and heat exchange is carried out on the hot water and heat released by methane combustion in a hearth, steam is generated for a user, so that the heat energy utilization efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a methane-burning steam boiler.
Background
Organic waste and domestic sewage discharged from livestock farms, alcohol plants, wineries, sugar factories, bean product plants, paper plants or sewage plants are subjected to anaerobic fermentation to generate a large amount of anaerobic biogas, and the main component of the anaerobic biogas is methane (CH 4) and carbon dioxide (accounting for about 30% -40%). Anaerobic marsh gas is indissolvable in water, inflammable, not only seriously pollutes the atmosphere, causes the pollution of underground water sources and damages surrounding vegetation, but also aggravates the global warming effect, is extremely easy to cause natural and explosion accidents, is a combustible gas with higher heat value, has low cost, has better antiknock performance compared with other fuel gases, is a good clean fuel, is a green energy-saving energy source, and has good utilization value.
In order to solve the problems, the waste incineration boiler is mainly used for combusting methane in China in the past, but the methane generated by the IC anaerobic system cannot be completely combusted, so that the environment is seriously polluted, the underground water source is polluted, surrounding vegetation is destroyed and the like, the utilization rate of heat energy is low, and the heat is not convenient to fully recycle.
Disclosure of Invention
The utility model aims to provide a methane-burning steam boiler, which aims to solve the problems that methane generated by an IC anaerobic system cannot be completely burned out, the atmospheric environment is seriously polluted, the underground water source is polluted, surrounding vegetation is damaged and the like in the background technology.
In order to achieve the above purpose, the utility model provides a methane-fired steam boiler, which comprises a boiler body, wherein a flue gas pipeline is connected to a smoke outlet at the top of the boiler body, a hearth is arranged in the boiler body, a plurality of convection tube bundles are arranged on one side of the hearth, convection flues are arranged on the outer sides of the convection tube bundles, an energy saver and a condenser are sequentially arranged on the flue gas pipeline, a water tank is arranged on the outer sides of the energy saver and the condenser, a high temperature bin and a low temperature bin are arranged in the water tank, an outlet tube seat of the energy saver is connected with a water inlet of the boiler body through a boiler water supply pipeline, an inlet tube seat of the energy saver is connected with a water outlet of the high temperature bin through a pipeline, an outlet tube seat of the condenser is connected with a water inlet of the low temperature bin through a pipeline, and a water treatment device is connected on the outer side of the low temperature bin.
Preferably, one end of the furnace body is provided with a methane burner, and one side of a combustion port of the methane burner is connected with a methane pipeline.
Preferably, a heat insulating layer is arranged on the outer wall of the furnace body, and a membrane type wall is arranged on the inner wall of the furnace body.
Preferably, an upper steam drum is connected to the upper portion of the convection bank, and a lower steam drum is connected to the lower portion of the convection bank.
Preferably, a chimney is arranged at the outer end of the flue gas pipeline.
Preferably, a water supply pump is arranged on a pipeline between the water outlet of the high-temperature bin and the inlet pipe seat of the energy-saving device, and a condenser circulating pump is arranged on a pipeline between the water outlet of the low-temperature bin and the inlet pipe seat of the condenser.
Preferably, an economizer coil is arranged in the economizer, two ends of the economizer coil are respectively communicated with an outlet tube seat and an inlet tube seat of the economizer, a condenser coil is arranged in the condenser, and two ends of the condenser coil are respectively communicated with the outlet tube seat and the inlet tube seat of the condenser.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the methane-fired steam boiler, tap water enters a low-temperature bin through water treatment equipment, then enters a condenser coiled pipe through a circulating pump to exchange heat with low-temperature flue gas at the tail part of the boiler outside the pipe, hot water heated by the condenser is sent to a high-temperature bin, the hot water is pumped into an energy-saving device coiled pipe through a water supply pump to be secondarily heated with high-temperature flue gas at the tail part of the boiler, and after being heated, the hot water enters a boiler body, and heat exchange is carried out on the hot water and heat released by methane combustion in a hearth, steam is generated for a user, so that the heat energy utilization efficiency is improved.
2. In the methane-fired steam boiler, the exhaust gas temperature is further reduced through the condenser arranged in the methane-fired steam boiler, the thermal efficiency of the boiler is improved, the fuel gas consumption is reduced, a heat source for production is provided for a user, and environmental pollution and atmospheric pollution caused by improper waste disposal are avoided.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of the internal structure of the present utility model;
FIG. 3 is a schematic view of the internal structure of the furnace body according to the present utility model.
The meaning of each reference sign in the figure is:
1. a furnace body; 11. a furnace; 12. a heat insulating layer; 13. a membrane wall; 14. a convection bank; 141. loading a steam drum; 142. a lower steam drum; 15. a convection flue; 2. a biogas burner; 21. a biogas pipeline; 3. a flue gas duct; 31. a chimney; 4. a boiler feed water pipe; 5. an energy-saving device; 51. a water feed pump; 52. an economizer coil; 6. a condenser; 61. a condenser circulation pump; 62. a condenser coil; 7. a water tank; 71. a high temperature bin; 72. a low temperature bin; 8. a water treatment device.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a methane-burning steam boiler, as shown in fig. 1-3, which comprises a boiler body 1, wherein a flue gas pipeline 3 is connected to a smoke outlet at the top of the boiler body 1, a hearth 11 is arranged in the boiler body 1 and used for fuel burning, a plurality of convection tube bundles 14 are arranged on one side of the hearth 11, a convection flue 15 is arranged on the outer side of the convection tube bundles 14, flue gas flows in the convection flue 15 and exchanges heat with water in the convection tube bundles 14, so that heat is absorbed, an energy saver 5 and a condenser 6 are sequentially arranged on the flue gas pipeline 3 and used for further recycling of heat in the flue gas, a water tank 7 is arranged on the outer sides of the energy saver 5 and the condenser 6 and used for supplementing water, a high temperature bin 71 and a low temperature bin 72 are arranged in the water tank 7, an outlet tube seat of the energy saver 5 is connected with a water inlet of the boiler body 1 through a boiler water supply pipeline 4, an inlet tube seat of the energy saver 5 is connected with a water outlet of the high temperature bin 71 through a pipeline, an outlet tube seat of the condenser 6 is connected with a water inlet of the low temperature bin 72 through a pipeline, an inlet tube seat of the condenser 6 is connected with a water outlet of the low temperature bin 72 through a pipeline, and the outer side of the low temperature bin 72 is connected with water treatment equipment 8.
In the embodiment, one end of the furnace body 1 is provided with a methane burner 2, and one side of a combustion port of the methane burner 2 is connected with a methane pipeline 21 for introducing methane.
Specifically, the outer wall of furnace body 1 is provided with insulating layer 12, and diaphragm wall 13 is installed to the inner wall of furnace body 1, and diaphragm wall 13 is including the furnace limit diaphragm wall that is located furnace 11 inner wall, and diaphragm wall is located the furnace middle part at furnace 11, and the convection current limit diaphragm wall that is located the convection current tube bank 14 outside is located the furnace back wall diaphragm wall of furnace 11 back wall, and the furnace front wall diaphragm wall that is located the furnace 11 front wall can guarantee that furnace 11 has good tightness.
Further, an upper steam drum 141 is connected to the upper portion of the convection bank 14, a lower steam drum 142 is connected to the lower portion of the convection bank 14, external water enters from the upper steam drum 141, flows into the lower steam drum 142 after being heated by the convection bank 14, and finally is discharged through a water outlet pipe for users.
Further, a chimney 31 is installed at the outer end of the flue gas duct 3 for flue gas discharge.
Further, a water feed pump 51 is installed on a pipeline between the water outlet of the high temperature bin 71 and the inlet pipe seat of the economizer 5, and a condenser circulating pump 61 is installed on a pipeline between the water outlet of the low temperature bin 72 and the inlet pipe seat of the condenser 6.
Further, an economizer coil 52 is disposed inside the economizer 5, two ends of the economizer coil 52 are respectively connected to an outlet tube seat and an inlet tube seat of the economizer 5, a condenser coil 62 is disposed inside the condenser 6, and two ends of the condenser coil 62 are respectively connected to the outlet tube seat and the inlet tube seat of the condenser 6.
When the biogas-fired steam boiler is used, tap water enters a low-temperature bin 72 through water treatment equipment 8, is sent into a condenser coiled pipe 62 through a condenser circulating pump 61, exchanges heat with low-temperature flue gas at the tail part of the boiler outside the pipe, is sent to a high-temperature bin 71 through hot water heated by a condenser 6, is sent into an energy-saving device coiled pipe 52 through a water feeding pump 51, is heated for the second time with high-temperature flue gas at the tail part of the boiler, and enters a furnace body 1 after being heated, and is subjected to heat exchange with heat released by biogas combustion in a hearth 11 to generate steam for a user;
the biogas is sprayed, atomized and ignited by the biogas pipeline 21 through the biogas burner 2, is burned in suspension in the hearth 11, enters the convection flue 15 through the rear smoke window, is discharged into the atmosphere through the chimney 31 through the energy economizer 5 and the condenser 6 arranged at the left side of the boiler, and achieves ultralow emission of the smoke generated after the biogas is burned by the boiler, thereby meeting the requirements of various environmental protection policies of the country.
Finally, it should be noted that, in the biogas burner 2 and the like in this embodiment, the electronic components in the above components are all universal standard components or components known to those skilled in the art, the structure and principle thereof are all known to those skilled in the art through technical manuals or known through routine experimental methods, at the idle position of the device, all the above electrical components are connected through wires, and specific connection means should refer to the sequential working order among the electrical components in the working principle to complete the electrical connection, which is known in the art.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. A biogas-fired steam boiler, comprising a furnace body (1), characterized in that: the flue gas boiler is characterized in that a flue gas pipeline (3) is connected to a top smoke outlet of the boiler body (1), a hearth (11) is arranged in the boiler body (1), a plurality of convection tube bundles (14) are arranged on one side of the hearth (11), a convection flue (15) is arranged on the outer side of each convection tube bundle (14), an energy saver (5) and a condenser (6) are sequentially arranged on the flue gas pipeline (3), a water tank (7) is arranged on the outer side of each energy saver (5) and the outer side of each condenser (6), a high-temperature bin (71) and a low-temperature bin (72) are arranged in the water tank (7), an outlet tube seat of each energy saver (5) is connected with a water inlet of the boiler body (1) through a boiler water supply pipeline (4), an inlet tube seat of each energy saver (5) is connected with a water outlet of the high-temperature bin (71) through a pipeline, and an outlet tube seat of each condenser (6) is connected with a water outlet of each low-temperature bin (72) through a pipeline, and a water treatment device (8) is connected to the outer side of each low-temperature bin (72).
2. Biogas-fired steam boiler according to claim 1, characterized in that: one end of the furnace body (1) is provided with a methane burner (2), and one side of a combustion port of the methane burner (2) is connected with a methane pipeline (21).
3. Biogas-fired steam boiler according to claim 1, characterized in that: the outer wall of the furnace body (1) is provided with a heat insulation layer (12), and the inner wall of the furnace body (1) is provided with a membrane wall (13).
4. Biogas-fired steam boiler according to claim 1, characterized in that: the upper part of the convection bank (14) is connected with an upper steam drum (141), and the lower part of the convection bank (14) is connected with a lower steam drum (142).
5. Biogas-fired steam boiler according to claim 1, characterized in that: and a chimney (31) is arranged at the outer end of the flue gas pipeline (3).
6. Biogas-fired steam boiler according to claim 1, characterized in that: a water supply pump (51) is arranged on a pipeline between the water outlet of the high-temperature bin (71) and the inlet pipe seat of the energy saver (5), and a condenser circulating pump (61) is arranged on a pipeline between the water outlet of the low-temperature bin (72) and the inlet pipe seat of the condenser (6).
7. Biogas-fired steam boiler according to claim 1, characterized in that: the inside of energy-saving appliance (5) is provided with energy-saving appliance coiled pipe (52), the both ends of energy-saving appliance coiled pipe (52) communicate respectively to the export tube socket and the import tube socket of energy-saving appliance (5), the inside of condenser (6) is provided with condenser coiled pipe (62), the both ends of condenser coiled pipe (62) communicate respectively to the export tube socket and the import tube socket of condenser (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322256346.5U CN220205702U (en) | 2023-08-22 | 2023-08-22 | Methane-burning steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322256346.5U CN220205702U (en) | 2023-08-22 | 2023-08-22 | Methane-burning steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220205702U true CN220205702U (en) | 2023-12-19 |
Family
ID=89142567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322256346.5U Active CN220205702U (en) | 2023-08-22 | 2023-08-22 | Methane-burning steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220205702U (en) |
-
2023
- 2023-08-22 CN CN202322256346.5U patent/CN220205702U/en active Active
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