CN220169448U - Full-premix cold flame ultralow emission boiler system with oxygen-enriched combustion function - Google Patents
Full-premix cold flame ultralow emission boiler system with oxygen-enriched combustion function Download PDFInfo
- Publication number
- CN220169448U CN220169448U CN202321943464.7U CN202321943464U CN220169448U CN 220169448 U CN220169448 U CN 220169448U CN 202321943464 U CN202321943464 U CN 202321943464U CN 220169448 U CN220169448 U CN 220169448U
- Authority
- CN
- China
- Prior art keywords
- boiler
- oxygen
- water
- header
- inlet pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 239000001301 oxygen Substances 0.000 title claims abstract description 53
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 53
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 39
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 67
- 239000007789 gas Substances 0.000 claims description 41
- 238000005192 partition Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 4
- 239000000779 smoke Substances 0.000 abstract description 8
- 230000000087 stabilizing effect Effects 0.000 abstract description 7
- 239000000446 fuel Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 11
- 239000003546 flue gas Substances 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a full premix cold flame ultralow emission boiler system with oxygen-enriched combustion, which comprises a boiler body, a combustor, a boiler barrel, an energy saver, an upper header, a lower header, a front wall water-cooling wall, a membrane wall, a condenser and a tail flue, wherein the combustor comprises a combustor shell arranged at the front end of the boiler body, the front end of the combustor shell is provided with a mixer, a plurality of flow equalizing plates are arranged in the combustor shell, an outlet of the combustor shell is opposite to the middle part of the front wall water-cooling wall, a steel plate is connected between two adjacent tube bundles in the front wall water-cooling wall, a plurality of flame stabilizing holes are uniformly distributed on the steel plate, and the tail of the boiler body is sequentially connected with the energy saver, the condenser and the tail flue. Compared with the prior art, the utility model has the advantages that: according to the efficient energy-saving corner tube boiler system, the combustion process and the heat energy recovery are optimized, so that the energy consumption and the exhaust smoke temperature are effectively reduced, the waste of fuel is reduced by controlling the oxygen content and the fuel utilization rate in the combustion process, and the energy-saving effect is realized.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a full premix cold flame ultralow emission boiler system with oxygen-enriched combustion.
Background
The corner tube type boiler is a common boiler type and is characterized in that a corner tube is used as a heating surface, and heat exchange is performed through smoke flowing in the corner tube, so that the utilization efficiency of heat energy is improved. Compared with the traditional water pipe boiler, the angle pipe boiler has larger heat transfer area and better fluid dynamics characteristic, and can realize higher heat exchange efficiency and more stable combustion process. Then, the following technical problems still exist in the angle tube type boiler in the prior art:
1. in the conventional boiler system, the flow of the combustible gas is uneven in the combustion process, which easily causes the up-and-down swing of the flame. Such unstable combustion may affect combustion efficiency and safety, reducing performance of the boiler system;
2. in the traditional boiler system, as the heat energy in the flue gas is not effectively recycled, the flue gas discharge amount is large. The large amount of smoke exhaust not only means the waste of energy, but also causes more chemical bond loss in the fuel gas, and reduces the combustion efficiency.
3. The water quality of the boiler needs to strictly control the content of the dissolved oxygen so as to ensure that the boiler is not corroded by the oxygen, thereby prolonging the service life of the boiler. The conventional deaerator is a thermal deaerator, and the thermal deaerator mainly utilizes the solubility characteristic of gas in water (the solubility of any gas in water is in direct proportion to the partial pressure of the gas on a gas-water interface), and the water supplement and the condensed water entering the deaerator are heated to the saturation temperature corresponding to the internal pressure of the deaerator by steam heating, so that the deaerator is prepared according to henry's law and Dalton's law: non-condensable gases such as oxygen and carbon dioxide dissolved in water are separated out from the water and discharged into the atmosphere through a top exhaust pipe, so that the oxygen content in the water reaches a specified standard. The temperature of deoxygenated water using a thermal deoxygenator is typically 104 ℃ (atmospheric deoxygenator) or higher. And is not beneficial to heat exchange of the heating surface at the tail part of the boiler.
Disclosure of Invention
In order to overcome the technical defects, the utility model provides a full premix cold flame ultralow emission boiler system with oxygen-enriched combustion.
According to the utility model, the full premix cold flame ultralow emission boiler system with oxygen-enriched combustion comprises a boiler body, a combustor, a boiler barrel energy saver, an upper header, a lower header, a front wall water-cooling wall, a membrane wall, a condenser and a tail flue, wherein the combustor comprises a combustor shell arranged at the front end of the boiler body, a premixed gas inlet pipe is arranged at the front end of the combustor shell, a mixer is arranged on the premixed gas inlet pipe, a plurality of flow equalizing plates are arranged inside the combustor shell, a plurality of flow equalizing holes are uniformly distributed on the flow equalizing plates, an outlet of the combustor shell is opposite to the middle part of the front wall water-cooling wall, a steel plate is connected between two adjacent tube bundles in the front wall water-cooling wall, a plurality of flame stabilizing holes are uniformly distributed on the steel plate, the boiler barrel is arranged above the boiler body, the upper header and the lower header are respectively arranged at the upper end and the lower end of the boiler body, the upper end and the lower end of the membrane wall are respectively communicated with the upper header and the lower header through the lower header, the upper end of the upper header is respectively communicated with the tail flue through the guide pipe and the boiler body, and the tail flue are sequentially connected with the energy saving device and the tail flue.
Preferably, a longitudinal baffle plate is arranged at one end, close to the mixer, in the combustor shell, the front end of the combustor shell is separated by the longitudinal baffle plate, an S-shaped flow guide cavity is formed, and a uniform orifice plate and a U-shaped flow guide plate are sequentially arranged in the S-shaped flow guide cavity along the flowing direction of mixed gas.
Preferably, a plurality of spiral fin tubes positioned behind the flow equalizing plate are arranged in the burner shell side by side.
Preferably, the premixed gas inlet pipe is further provided with a membrane type oxygen generator, and the oxygen outlet end of the membrane type oxygen generator is communicated with the inlet of the premixed gas inlet pipe.
Preferably, a water supply inlet pipe is connected to a condenser inlet header of the condenser, a normal temperature membrane deaerator is arranged at the water inlet end of the water supply inlet pipe, a condenser outlet header of the condenser is communicated with an economizer inlet header of the economizer, an economizer outlet header of the economizer is provided with a water supply pipe communicated with the boiler barrel, and a water supply branch pipe communicated with the water supply pipe is arranged on the water supply inlet pipe.
Preferably, the water supply inlet pipe is provided with a thermometer, a pressure gauge and a water supply sampling pipeline.
Preferably, an air preheater is arranged on the tail flue, and a combustion-supporting air outlet of the air preheater is connected with a premixed gas inlet pipe through a hot combustion-supporting air duct.
Compared with the prior art, the full premix cold flame ultralow emission boiler system with oxygen-enriched combustion has the advantages that:
1. high-efficiency heat exchange: the energy economizer, the condenser, the tail flue and other parts in the boiler system realize efficient heat exchange by fully utilizing the waste heat and heat recovery technology in the flue gas. The energy economizer can convert high-temperature heat energy in the flue gas into heat energy of water, and improves heat energy utilization efficiency. The condenser converts the water vapor in the flue gas into heat energy by condensing the water vapor, and reduces the discharge temperature of the flue gas. The air preheater on the tail flue utilizes the waste heat of the flue gas to preheat combustion air, so that the combustion efficiency and the heat exchange effect are improved.
2. Stable combustion: the flow equalizing plate, the spiral fin tube and the like in the burner shell are designed, so that the air flow distribution in the combustion process is effectively improved, the fuel gas is more uniformly mixed with air, and stable combustion is realized. The flame stabilizing holes in the steel plate further enhance the stability of flame, avoid the up-and-down swing of flame, and improve the combustion efficiency and safety.
3. Oxygen control and reduced exhaust temperature: oxygen produced by the membrane type oxygen generator enters combustion air, oxygen content in the combustion air is controlled, and theoretical air quantity is reduced, so that fuel consumption and smoke exhaust heat loss are reduced. By controlling the oxygen content and the theoretical air amount, the boiler system can achieve more efficient combustion and reduce the amount of flue gas generated. In addition, the normal temperature film deaerator reduces the content of dissolved oxygen in the boiler feed water, simultaneously, can reduce the system thermal deaeration and the system steam consumption, and can ensure that the exhaust gas temperature is greatly reduced due to the reduction of the boiler feed water temperature, thereby improving the efficiency. Further reducing the temperature of the exhaust gas.
4. The service life of the boiler is effectively prolonged: the normal temperature film deaerator is adopted, and the content of dissolved oxygen is reduced, so that the oxygen corrosion of the boiler can be effectively reduced, the heating surface of the boiler is protected from damage, and the service life of the boiler is prolonged.
5. Energy saving and environmental protection: the efficient energy-saving type corner tube boiler system is burnt through optimizationThe burning process and the heat energy recovery effectively reduce the energy consumption and the temperature of the discharged flue gas, and reduce the pollution to the environment. Meanwhile, by controlling the oxygen content and the fuel utilization rate in the combustion process, the waste of fuel is reduced, the energy loss is reduced, and the boiler system is more energy-saving. By adopting the water-cooling premixing combustion technology, the combustion temperature can be reduced, NOx generated by combustion can be reduced, and ultra-low nitrogen (30 mg/Nm) can be achieved 3 ) Or ultra-low nitrogen (10 mg/Nm) 3 ) Meanwhile, the carbon emission is correspondingly reduced due to fuel saving, so that the environmental protection effect is realized.
Drawings
FIG. 1 is a schematic diagram of a front view of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of a burner according to the present utility model;
FIG. 3 is a schematic top view of the internal structure of the burner of the present utility model;
FIG. 4 is a schematic view of a part of the structure of a front wall water wall according to the present utility model;
FIG. 5 is a schematic top view of the front wall water wall of FIG. 4;
FIG. 6 is a schematic view of a partial soda flow structure in the present utility model.
Fig. 7 is a schematic top view of the present utility model.
Reference numerals: 1. the boiler comprises a boiler body, 2, a boiler barrel, 3, an energy saver, 4, an upper header, 5, a lower header, 6, a membrane wall, 7, a condenser, 8, a tail flue, 9, a burner housing, 10, a premixed gas inlet pipe, 11, a mixer, 12, a front wall water-cooled wall, 13, a flow equalizing plate, 14, a tube bundle, 15, a steel plate, 16, a flame stabilizing hole, 17, a downcomer, 18, a longitudinal partition plate, 19, an S-shaped flow guiding cavity, 20, a flow equalizing plate, 21, a U-shaped flow guiding plate, 22, a spiral fin pipe, 23, a membrane oxygen generator, 24, a water feeding pipe, 25, a normal temperature membrane oxygen generator, 26, a water feeding pipe, 27, a water feeding branch pipe, 28, a thermometer, 29, a pressure gauge, 30, a water feeding sampling pipeline, 31, an air preheater, 32 and a hot combustion supporting air flue.
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.
As shown in figure 1, the full premix cold flame ultralow emission boiler system with oxygen-enriched combustion comprises a boiler body 1, a combustor, a boiler barrel 2, an economizer 3, an upper header 4, a lower header 5, a front wall water-cooling wall 12, a membrane wall 6, a condenser 7 and a tail flue 8, wherein the combustor comprises a combustor shell 9 arranged at the front end of the boiler body 1, a premixed gas inlet pipe 10 is arranged at the front end of the combustor shell 9, a mixer 11 is arranged on the premixed gas inlet pipe 10, a plurality of flow equalizing plates 13 are arranged in the combustor shell 9, a plurality of flow equalizing holes are uniformly distributed on the flow equalizing plates 13, an outlet of the combustor shell 9 is opposite to the middle part of the front wall water-cooling wall 12, a steel plate 15 is connected between two adjacent tube bundles 14 in the front wall water-cooling wall 12, a plurality of flame stabilizing holes 16 are uniformly distributed on the steel plate 15, the boiler barrel 2 is arranged above the boiler body 1, the upper header 4 and the lower header 5 are respectively arranged at the upper end and the lower end of the boiler body 1, the front end of the combustor 2 is communicated with the lower header 5 through a descending pipe 17, the upper end and the lower end of the membrane wall 6 are respectively communicated with the upper header 4 and the lower header 5 through the upper header 4 and the lower header 4, the tail flue 8, and the tail flue 2 is sequentially communicated with the boiler body 3 through the condenser pipe 7.
In one embodiment, as shown in fig. 2, a longitudinal partition 18 is disposed at one end of the burner housing 9 near the mixer 11, the longitudinal partition 18 separates the front end of the burner housing 9 and forms an S-shaped flow guiding cavity 19, the S-shaped flow guiding cavity 19 is sequentially provided with a uniform orifice 20 and a U-shaped flow guiding plate 21 along the flowing direction of the mixed gas, the flowing direction of the combustible mixed gas can be changed by the longitudinal partition 18, and the uniform orifice 20 and the U-shaped flow guiding plate 21 are disposed so as to make the flow of the combustible mixed gas more uniform.
In one embodiment, as shown in fig. 3-5, a plurality of spiral fin tubes 22 are arranged in the burner housing 9 side by side behind the flow equalizing plate 13, and the combustible gas passes through the gaps among the fins in the spiral fin tubes 22, so that the flow of the combustible mixed gas is more uniform.
In one embodiment, as shown in fig. 6, a membrane type oxygen generator 23 is further arranged at the position of the premixed gas inlet pipe 10, and the oxygen outlet end of the membrane type oxygen generator 23 is communicated with the inlet of the premixed gas inlet pipe 10.
The water quality of the boiler needs to strictly control the content of the dissolved oxygen so as to ensure that the boiler is not corroded by the oxygen, thereby prolonging the service life of the boiler. The conventional deaerator is a thermal deaerator, and the thermal deaerator mainly utilizes the solubility characteristic of gas in water (the solubility of any gas in water is in direct proportion to the partial pressure of the gas on a gas-water interface), and the water supplement and the condensed water entering the deaerator are heated to the saturation temperature corresponding to the internal pressure of the deaerator by steam heating, so that the deaerator is prepared according to henry's law and Dalton's law: non-condensable gases such as oxygen and carbon dioxide dissolved in water are separated out from the water and discharged into the atmosphere through a top exhaust pipe, so that the oxygen content in the water reaches a specified standard. The temperature of deoxygenated water using a thermal deoxygenator is typically 104 ℃ (atmospheric deoxygenator) or higher. And is not beneficial to heat exchange of the heating surface at the tail part of the boiler. In one embodiment, a water supply inlet pipe 24 is connected to a condenser inlet header of the condenser 7, a normal temperature membrane deaerator 25 is arranged at the water inlet end of the water supply inlet pipe 24, a condenser outlet header of the condenser 7 is communicated with an economizer inlet header of the economizer 3, an economizer outlet header of the economizer 3 is provided with a water supply pipe 26 communicated with the boiler barrel 2, and a water supply branch pipe 27 communicated with the water supply pipe 26 is arranged on the water supply inlet pipe 24. The oxygen content in the water is regulated to reach the standard. The temperature is also normal temperature, the temperature difference between the tail part of the boiler and the smoke is increased, the heat exchange effect is improved, and the smoke discharging temperature can be further reduced.
In one embodiment, the feedwater feed 24 is provided with a thermometer 28, a pressure gauge 29 and a feedwater sampling line 30.
In one embodiment, as shown in fig. 7, an air preheater 31 is arranged on the tail flue 8, and an air outlet of the air preheater 31 is connected with the premixed gas inlet pipe 10 through a hot combustion air flue 32.
Working principle: the combustion-supporting air sent by the boiler fan is heated by the air preheater 31 and enters the mixer 11 through the air inlet on the premixed gas inlet pipe 10, and the fuel gas enters the mixer 11 through the fuel gas inlet on the premixed gas inlet pipe 10 and is mixed with the combustion-supporting air to form combustible gas, the oxygen produced by the professional film type oxygen generator 23 enters the combustion-supporting air of the boiler, the oxygen content of the combustion-supporting air is controlled to be 30%, the theoretical air quantity can be reduced, the smoke generation quantity is reduced, the overall power consumption and smoke exhaust heat loss of the boiler are reduced, the combustible gas enters the hearth of the boiler body 1 to be ignited and subjected to oxygen-enriched combustion, the flow equalization plate 13 and the spiral fin pipe 22 are arranged to enable the flow of the combustible gas to be more uniform, and the flame stabilizing holes 16 are arranged on the steel plate 15 to prevent the flame from swinging up and down, so that the flame stabilizing effect is achieved; the high-temperature flue gas generated by oxygen-enriched combustion sequentially passes through the energy economizer 3 and the condenser 7, and low-temperature flue gas is formed by the cooling effect of the condenser 7 and is discharged through the tail flue 8;
the boiler feed water firstly enters the normal temperature membrane deaerator 25 from the water tank, the normal temperature membrane deaerator 25 adopts a filter membrane to strip oxygen in the water and then discharges the oxygen, so that the oxygen content in the water reaches the standard regulation; the boiler feed water enters the economizer 3 through the feed water inlet pipe 24 and is preheated to about 100 ℃ to enter the lower half part of the boiler barrel 2, the water is uniformly distributed to the membrane wall 6 along the descending pipe 17 and the lower header 5, the feed water is continuously evaporated into a gas mixture after absorbing heat, the gas mixture enters the upper header 4 for steam-water pre-separation, and the steam enters the steam space at the upper half part of the boiler barrel through the steam guide pipe and leaves the boiler at the top part of the boiler barrel 2 in a saturated steam state.
The above embodiments are only for illustrating the technical solution of the embodiments of the present utility model, and are not limited thereto; although embodiments of the present utility model have been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions, which are defined by the appended claims.
Claims (7)
1. The full premix cold flame ultralow emission boiler system with the oxygen-enriched combustion is characterized by comprising a boiler body (1), a combustor, a boiler barrel (2), an energy saver (3), an upper header (4), a lower header (5), a front wall water-cooling wall (12), a membrane wall (6), a condenser (7) and a tail flue (8), wherein the combustor comprises a combustor shell (9) arranged at the front end of the boiler body (1), the front end of the combustor shell (9) is provided with a premix gas inlet pipe (10), the premix gas inlet pipe (10) is provided with a mixer (11), a plurality of flow equalizing plates (13) are arranged in the combustor shell (9) and are uniformly provided with a plurality of flow equalizing holes, the outlet of the combustor shell (9) is opposite to the middle of the front wall water-cooling wall (12), a steel plate (15) is connected between two adjacent tube bundles (14) in the front wall water-cooling wall (12), a plurality of holes (16) are uniformly distributed on the steel plate (15), the boiler barrel (2) is arranged above the boiler body (1) and below the boiler barrel (5) are respectively communicated with the lower header (17), the upper end and the lower end of the membrane wall (6) are respectively communicated with the upper header (4) and the lower header (5), the upper end of the upper header (4) is communicated with the boiler barrel (2) through a steam guide pipe, and the tail part of the boiler body (1) is sequentially connected with the energy saver (3), the condenser (7) and the tail flue (8).
2. The full premix cold flame ultralow emission boiler system with oxygen-enriched combustion according to claim 1, wherein a longitudinal partition plate (18) is arranged at one end, close to the mixer (11), of the combustor shell (9), the longitudinal partition plate (18) separates the front end of the combustor shell (9) and forms an S-shaped flow guide cavity (19), and the S-shaped flow guide cavity (19) is sequentially provided with a uniform orifice plate (20) and a U-shaped flow guide plate (21) along the flowing direction of mixed gas.
3. The full premix cold flame ultralow emission boiler system with oxygen-enriched combustion according to claim 2, wherein a plurality of spiral fin tubes (22) positioned behind the flow equalizing plate (13) are arranged in the burner housing (9) side by side.
4. The full premix cold flame ultralow emission boiler system with oxygen-enriched combustion according to claim 1, wherein a membrane type oxygen generator (23) is further arranged at the premix gas inlet pipe (10), and an oxygen outlet end of the membrane type oxygen generator (23) is communicated with an inlet of the premix gas inlet pipe (10).
5. The full premix cold flame ultralow emission boiler system with oxygen-enriched combustion according to claim 1, wherein a condenser inlet header of the condenser (7) is connected with a water supply inlet pipe (24), a normal temperature membrane deaerator (25) is arranged at the water inlet end of the water supply inlet pipe (24), a condenser outlet header of the condenser (7) is communicated with an economizer inlet header of the economizer (3), an economizer outlet header of the economizer (3) is provided with a water supply pipe (26) communicated with the boiler barrel (2), and a water supply branch pipe (27) communicated with the water supply pipe (26) is arranged on the water supply inlet pipe (24).
6. The full premix cold flame ultralow emission boiler system with oxygen-enriched combustion according to claim 5, wherein a thermometer (28), a pressure gauge (29) and a water supply sampling pipeline (30) are arranged on the water supply inlet pipe (24).
7. The full premix cold flame ultralow emission boiler system with oxygen-enriched combustion according to claim 1, wherein an air preheater (31) is arranged on the tail flue (8), and an air outlet of the air preheater (31) is connected with a premix gas inlet pipe (10) through a hot air duct (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321943464.7U CN220169448U (en) | 2023-07-24 | 2023-07-24 | Full-premix cold flame ultralow emission boiler system with oxygen-enriched combustion function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321943464.7U CN220169448U (en) | 2023-07-24 | 2023-07-24 | Full-premix cold flame ultralow emission boiler system with oxygen-enriched combustion function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220169448U true CN220169448U (en) | 2023-12-12 |
Family
ID=89060778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321943464.7U Active CN220169448U (en) | 2023-07-24 | 2023-07-24 | Full-premix cold flame ultralow emission boiler system with oxygen-enriched combustion function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220169448U (en) |
-
2023
- 2023-07-24 CN CN202321943464.7U patent/CN220169448U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107388221A (en) | A kind of ultralow nitrogen condensation horizontal steam boiler of four backhauls | |
| CN206036980U (en) | Low -nitrogen combustion's steam boiler | |
| WO2022088686A1 (en) | Gas boiler tail flue gas energy-saving and emission-reduction system | |
| CN202902620U (en) | Integral center back-draft type condensate bearing hot water furnace | |
| CN211232856U (en) | Vaporization cooling type burner | |
| CN220169448U (en) | Full-premix cold flame ultralow emission boiler system with oxygen-enriched combustion function | |
| CN110966591A (en) | Vaporization cooling type burner | |
| CN116906893A (en) | Full-premix cold flame ultralow emission boiler system with oxygen-enriched combustion function | |
| CN202791953U (en) | Water pipe type condensation superheating steam generator | |
| CN101726111A (en) | Non-premixing inverted condensing gas water heater | |
| WO2022088687A1 (en) | Air and coal gas parallel connection integrated flue gas temperature reducing and energy saving device for coal gas boiler | |
| CN214619472U (en) | Enhanced heat transfer vertical pipe type water-cooling gas steam generator | |
| CN212481362U (en) | Energy-saving corrosion-resistant efficient heat exchange device | |
| CN210345898U (en) | Full-condensation ultralow-nitrogen horizontal hot water boiler | |
| CN112097287B (en) | Boiler energy-saving and flue gas whitening system, process and application | |
| CN207247162U (en) | Water cooling premixes steam generator | |
| CN110056900A (en) | A kind of GTCC power plant starting trouble afterheat utilizing system | |
| CN112268270A (en) | Skid-mounted water pipe type low-nitrogen gas steam boiler | |
| CN214536856U (en) | Full-premixing water-cooling combustion vacuum boiler | |
| CN206222340U (en) | A kind of formaldehyde exhaust combustion and heat recovery system | |
| CN206398686U (en) | Biomass direct-combustion boiler | |
| CN206608970U (en) | Oxygen-enriched Combustion in Utility Boilers, oxygen-enriched ignition and the oxygen system surely fired | |
| CN110887032A (en) | Natural gas cold flame combustion horizontal fire tube steam boiler | |
| CN219976363U (en) | Bottom-fired vertical fin tube steam generator | |
| CN214469355U (en) | Full premix burning ultralow nitrogen condensation vacuum boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |