CN116624869B - Low nitrogen emission's grate finned tube - Google Patents
Low nitrogen emission's grate finned tube Download PDFInfo
- Publication number
- CN116624869B CN116624869B CN202310906415.4A CN202310906415A CN116624869B CN 116624869 B CN116624869 B CN 116624869B CN 202310906415 A CN202310906415 A CN 202310906415A CN 116624869 B CN116624869 B CN 116624869B
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- CN
- China
- Prior art keywords
- finned tube
- tube
- fuel gas
- fixedly connected
- combustion chamber
- 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.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 16
- 238000002485 combustion reaction Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 abstract description 41
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 24
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000011324 bead Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 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
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/66—Preheating the combustion air or gas
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The application discloses a low nitrogen emission fire grate finned tube applied to the field of heat exchange, which is characterized in that a combustion chamber and other devices are arranged, fuel gas is discharged into the combustion chamber through a water drop channel, the fuel gas enters the combustion chamber and is ignited for combustion, at the moment, heat at the root of a flame is quickly exchanged and taken away by a base tube and the finned tube, the temperature of the root of the flame is reduced, and meanwhile, a plurality of small fire bundles formed by the fuel gas sprayed out of the water drop channel enable the flame temperature to be easier to spread, so that the local high temperature is avoided, thereby the formation of thermal nitrogen oxides can be reduced, the purpose of emission reduction is achieved, the heat taken away by the fuel gas is reduced, the heat utilization rate is improved, the indirect fuel gas saving is achieved, the purpose of energy saving is achieved, part of the fuel gas can be preheated through the arrangement of a guide plate and the like, the preheated fuel gas can be reduced in the amount of the supplied fuel gas, the physical heat is directly saved without increasing the volume of discharged smoke, and the emission of nitrogen pollutants is further reduced.
Description
Technical Field
The application relates to the field of heat exchange, in particular to a low-nitrogen-emission grate finned tube.
Background
When the boiler works, the burnt fuel gas can generate smoke, nitrogen oxides are contained in the smoke, and serious pollution can be caused by directly discharging the nitrogen oxides into the air, one of the existing solutions is to use a heat exchange device such as a fin tube to secondarily utilize heat in the smoke, and preheat the fuel gas, so that the generation of partial nitrogen oxides can be reduced.
Because the generation of the flue gas is mainly in the combustion link, the method has limited nitrogen oxides which can be reduced.
Disclosure of Invention
Compared with the prior art, the application provides the grate finned tube with low nitrogen emission, which comprises the burner, wherein a plurality of base tubes are arranged between the side walls of two sides of the burner, the outer walls of the base tubes are fixedly connected with the finned tubes, the two sides of the finned tubes are arranged in a bent shape, sealing planes are formed on the two sides of the finned tubes, water drop channels are formed between every two adjacent fins on the finned tubes, the two adjacent finned tubes are in a close fit state, a cover box and a combustion chamber are fixedly connected to the inner wall of the burner, the cover box is positioned on the upper side of the finned tubes, the combustion chamber is positioned on the lower side of the finned tubes, the combustion chamber penetrates through the bottom end of the burner, the bottom end of the cover box and the top end of the combustion chamber surround the finned tubes, strip-shaped spacing strips are arranged between every two adjacent finned tubes, the top end of the burner is fixedly connected with an air inlet pipe, and the bottom end of the air inlet pipe is communicated with the cover box.
Further, the top end of the burner is fixedly connected with a supercharger, and the supercharger is communicated with the air inlet pipe; by the arrangement of the pressurizer, the fuel gas can have certain pressure when being sprayed out, so that the fuel gas sprayed out of the gap is prevented from being ignited, and the outside of the combustion chamber and the inside of the combustor are prevented from being burnt.
Further, an auxiliary air pipe is fixedly connected between the top end of the burner and the air inlet pipe; the fuel gas discharged from the cover case and the base pipe, and between the combustion chamber and the base pipe can be re-discharged into the cover case through the auxiliary gas pipe and the gas inlet pipe for combustion.
Further, the top end of the burner is fixedly connected with an exhaust pipe which is communicated with an auxiliary air pipe, and the outer wall of the auxiliary air pipe is fixedly connected with a one-way air valve; the exhaust pipe can exhaust the gas leaked in the burner and discharge the gas into the air inlet pipe, so that the gas is prevented from being discharged into the burner through the auxiliary air pipe due to the excessive pressure in the air inlet pipe.
Further, the outside of the cover box is fixedly connected with a guide plate, the guide plate covers the outside of the fin tubes, and the guide plate surrounds the combustion chamber; through the arrangement, part of fuel gas can be preheated, the preheated fuel gas can reduce the supplied fuel gas amount, the fuel is directly saved, the physical heat is increased without increasing the exhaust gas volume, and the emission of nitrogen pollutants is further reduced.
Further, the fin tube is fixedly connected with a reinforcing rib in a bending way; through the setting of strengthening rib, the deformation appears in the face of buckling of finned tube has been prevented.
Further, the finned tube is formed by integrally rolling an aluminum tube, and the base tube is in interference connection with the finned tube.
Furthermore, the base tube is made of stainless steel materials, and the base tube is connected with the fin tube in an expanded mode, through the arrangement, gaps between the base tube and the fin tube can be further reduced, contact thermal resistance is reduced, heat exchange efficiency is improved, and the combined fin tube has mechanical properties of aluminum and stainless steel, so that the use effect is better.
Further, every two adjacent finned tubes are opposite in direction, and the bent planes are clamped, and through the arrangement, the compactness between the adjacent finned tubes can be further improved.
Compared with the prior art, the application has the advantages that:
(1) The fin tube is arranged through devices such as a combustion chamber, fuel gas is discharged into the combustion chamber through the water drop channel, the fuel gas is ignited to burn after entering the combustion chamber, at the moment, the heat of the flame root is quickly exchanged and taken away by the base tube and the fin tube, the temperature of the flame root is reduced, meanwhile, a plurality of small fire bundles formed by the fuel gas sprayed out of the water drop channel enable the flame temperature to be easier to spread, local high temperature is avoided, thereby the formation of thermal nitrogen oxides can be reduced, the purpose of emission reduction is achieved, the heat of flue gas is reduced, the heat utilization rate is improved, the fuel gas is indirectly saved, the purpose of saving energy is achieved, and the device can preheat part of fuel gas through the guide plate and the like, the preheated fuel gas can reduce the supplied fuel gas amount, directly save fuel, and increase physical heat without increasing the volume of discharged smoke, and further reduce the emission of nitrogen pollutants.
(2) The top end of the burner is fixedly connected with a supercharger which is communicated with the air inlet pipe; by the arrangement of the pressurizer, the fuel gas can have certain pressure when being sprayed out, so that the fuel gas sprayed out of the gap is prevented from being ignited, and the outside of the combustion chamber and the inside of the combustor are prevented from being burnt.
(3) An auxiliary air pipe is fixedly connected between the top end of the burner and the air inlet pipe; the fuel gas discharged from the cover case and the base pipe, and between the combustion chamber and the base pipe can be re-discharged into the cover case through the auxiliary gas pipe and the gas inlet pipe for combustion.
(4) The top end of the burner is fixedly connected with an exhaust pipe which is communicated with an auxiliary air pipe, and the outer wall of the auxiliary air pipe is fixedly connected with a one-way air valve; the exhaust pipe can exhaust the gas leaked in the burner and discharge the gas into the air inlet pipe, so that the gas is prevented from being discharged into the burner through the auxiliary air pipe due to the excessive pressure in the air inlet pipe.
(5) The outside of the cover box is fixedly connected with a guide plate, the guide plate covers the outer sides of the fin tubes, and the guide plate surrounds the combustion chamber; through the arrangement, part of fuel gas can be preheated, the preheated fuel gas can reduce the supplied fuel gas amount, the fuel is directly saved, the physical heat is increased without increasing the exhaust gas volume, and the emission of nitrogen pollutants is further reduced.
(6) The fin tube is fixedly connected with a reinforcing rib in a bending way; through the setting of strengthening rib, the deformation appears in the face of buckling of finned tube has been prevented.
(7) The base tube is made of stainless steel materials, the base tube is connected with the fin tube in an expanded mode, through the arrangement, gaps between the base tube and the fin tube can be further reduced, contact thermal resistance is reduced, heat exchange efficiency is improved, and the combined fin tube has mechanical properties of aluminum and stainless steel and is better in use effect.
(8) Every two adjacent finned tubes are opposite in direction, and the bent planes are clamped, and through the arrangement, the compactness between the adjacent finned tubes can be further improved.
Drawings
FIG. 1 is a front cross-sectional view of the present application;
FIG. 2 is a schematic illustration of a gas leak according to the present application;
FIG. 3 is a perspective view of a finned tube of the present application;
FIG. 4 is a perspective cross-sectional view of a finned tube of the present application;
FIG. 5 is a top view cross-section of a fin tube according to the present application;
FIG. 6 is a schematic perspective view of water droplet channels on a finned tube of the present application;
FIG. 7 is a side view structural view of a finned tube of the present application;
FIG. 8 is a schematic diagram of the flow direction of the fuel gas according to the present application;
FIG. 9 is a cross-sectional top view of a plurality of fin tubes according to the present application.
The reference numerals in the figures illustrate:
1. a burner; 2. a base pipe; 3. a fin tube; 4. a parting bead; 5. a cover box; 6. a combustion chamber; 7. an air inlet pipe; 701. a supercharger; 8. a secondary air pipe; 801. an exhaust pipe; 9. and a deflector.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present application are included in the protection scope of the present application.
First embodiment:
referring to fig. 1-8, the application discloses a low nitrogen emission grate finned tube, which comprises a burner 1, wherein a plurality of base tubes 2 are arranged between side walls at two sides of the burner 1, the outer walls of the base tubes 2 are fixedly connected with finned tubes 3, two sides of the finned tubes 3 are arranged in a bent shape, sealing planes are formed at two sides of the finned tubes 3, and reinforcing ribs are fixedly connected with the finned tubes 3 in a bent manner; through the arrangement of the reinforcing ribs, deformation of the bending surface of the finned tube 3 is prevented, water drop channels are formed between every two adjacent fins on the finned tube 3, each two adjacent finned tubes 3 are in a close fit state, the inner wall of the burner 1 is fixedly connected with a cover box 5 and a combustion chamber 6, the cover box 5 is positioned on the upper side of the finned tube 3, the combustion chamber 6 is positioned on the lower side of the finned tube 3, the combustion chamber 6 penetrates through the bottom end of the burner 1, the bottom end of the cover box 5 and the top end of the combustion chamber 6 surround the plurality of finned tubes 3, strip-shaped parting strips 4 are arranged between every two adjacent finned tubes 3, an air inlet pipe 7 is fixedly connected to the top end of the burner 1, and the bottom end of the air inlet pipe 7 is communicated with the cover box 5; the gas is discharged into the cover box 5 through the gas inlet pipe 7, and then is discharged into the combustion chamber 6 through the water drop channel under the baffle of the parting bead 4, the gas is ignited to burn after entering the combustion chamber 6, and the heat of the flame root is quickly exchanged and taken away by the base pipe 2 and the fin pipe 3, so that the temperature of the flame root is reduced, and meanwhile, a plurality of small fire bundles formed by the gas sprayed out of the water drop channel enable the flame temperature to be easier to spread, and local high temperature is avoided, thereby reducing the formation of the most main component part of nitrogen oxides in the thermal nitrogen oxide and nitrogen pollutant, achieving the aim of emission reduction, reducing the heat taken away by the flue gas, improving the heat utilization rate, indirectly saving the gas, and achieving the aim of saving energy.
Second embodiment:
referring to fig. 1-2, a supercharger 701 is fixedly connected to the top end of the burner 1, and the supercharger 701 is communicated with an air inlet pipe 7; the edge of the fin tube 3 is irregularly shaped, so that the joint between the cover box 5 and the base tube 2, and between the combustion chamber 6 and the base tube 2 has poor sealing property, and part of fuel gas leaks, and by the arrangement of the booster 701, the fuel gas can have certain pressure when being sprayed out, so that the fuel gas sprayed out from a gap is prevented from being ignited, and the outside of the combustion chamber 6 and the inside of the combustor 1 are prevented from being burnt.
Referring to fig. 1-2 and 7-8, an auxiliary air pipe 8 is fixedly connected between the top end of the burner 1 and the air inlet pipe 7; the fuel gas exhausted from the cover box 5, the base pipe 2, the combustion chamber 6 and the base pipe 2 can be discharged into the cover box 5 again through the auxiliary air pipe 8 and the air inlet pipe 7 for combustion, the top end of the combustor 1 is fixedly connected with an air exhaust pipe 801, the air exhaust pipe 801 is communicated with the auxiliary air pipe 8, and the outer wall of the auxiliary air pipe 8 is fixedly connected with a one-way air valve; the gas extraction pipe 801 can extract and discharge the gas leaked into the burner 1 into the air intake pipe 7, thereby preventing the gas from being discharged into the burner 1 through the auxiliary air pipe 8 due to excessive pressure in the air intake pipe 7.
Referring to fig. 1-2 and 7-8, a deflector 9 is fixedly connected to the outer side of the cover box 5, the deflector 9 covers the outer sides of the plurality of fin tubes 3, and the deflector 9 surrounds the combustion chamber 6; when the fuel gas is discharged through the gap between the cover box 5 and the base pipe 2, the combustion chamber 6 and the base pipe 2, the fuel gas can be guided by the guide plate 9 to be in contact with the combustion chamber 6, and the temperature of the combustion chamber 6 is increased when the fuel gas is combusted in the combustion chamber 6, at the moment, the fuel gas discharged from the gap can be preheated, the preheated fuel gas can reduce the supplied fuel gas amount, the fuel gas can be directly saved, the physical heat can be increased without increasing the volume of discharged smoke, and the discharge amount of nitrogen pollutants can be further reduced.
Referring to fig. 9, the finned tube 3 is formed by integrally rolling an aluminum tube, the base tube 2 and the finned tube 3 are in interference connection, the base tube 2 is made of stainless steel materials, the base tube 2 is connected with the finned tube 3 in an expanded mode, through the arrangement, gaps between the base tube 2 and the finned tube 3 can be further reduced, contact thermal resistance is reduced, heat exchange efficiency is improved, the combined finned tube simultaneously has mechanical properties of aluminum and stainless steel, the use effect is better, the directions of every two adjacent finned tubes 3 are opposite, and the bent planes are clamped, and through the arrangement, tightness between the adjacent finned tubes 3 can be further improved.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical solution and the modified concept thereof, within the scope of the present application.
Claims (5)
1. The utility model provides a low nitrogen discharges grate finned tube, includes combustor (1), its characterized in that, install a plurality of basic pipes (2) between the lateral wall of combustor (1) both sides, the outer wall fixedly connected with finned tube (3) of basic pipe (2), the both sides of finned tube (3) set up to the form of buckling, and the both sides of finned tube (3) form sealed plane, form the water droplet passageway between every two adjacent fins on finned tube (3), every two continuous finned tube (3) between all be the state of hugging closely, the inner wall fixedly connected with lid case (5) and combustion chamber (6) of combustor (1), lid case (5) are located the upside of finned tube (3), combustion chamber (6) are located the downside of finned tube (3), and combustion chamber (6) run through the bottom of combustor (1), the bottom of lid case (5) and the top of combustion chamber (6) surround a plurality of finned tube (3), every two adjacent fin between (3) are all in the state of hugging closely, lid case (5) are installed to the inner wall fixedly connected with lid case (7), intake pipe (7) are connected with each other end (7);
the top fixedly connected with booster (701) of combustor (1), booster (701) are linked together with intake pipe (7), fixedly connected with auxiliary air pipe (8) between the top of combustor (1) and intake pipe (7), the top fixedly connected with exhaust tube (801) of combustor (1), exhaust tube (801) are linked together with auxiliary air pipe (8), the outer wall fixedly connected with check valve of auxiliary air pipe (8), the outside fixedly connected with guide plate (9) of lid case (5), guide plate (9) cover the outside at a plurality of finned tubes (3), and guide plate (9) surround combustion chamber (6).
2. The low nitrogen emission grate finned tube according to claim 1, wherein the finned tube (3) is fixedly connected with reinforcing ribs in a bending mode.
3. The low nitrogen emission grate finned tube according to claim 1, wherein the finned tube (3) is integrally rolled from an aluminum tube, and the base tube (2) is in interference connection with the finned tube (3).
4. The low nitrogen emission grate finned tube of claim 1 wherein the base tube (2) is made of stainless steel material and the base tube (2) is expanded with the finned tube (3).
5. The low nitrogen emission grate fin tube of claim 1, wherein each two adjacent ones of said fin tubes (3) are oppositely oriented and the folded flat surfaces are snapped together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310906415.4A CN116624869B (en) | 2023-07-24 | 2023-07-24 | Low nitrogen emission's grate finned tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310906415.4A CN116624869B (en) | 2023-07-24 | 2023-07-24 | Low nitrogen emission's grate finned tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116624869A CN116624869A (en) | 2023-08-22 |
| CN116624869B true CN116624869B (en) | 2023-10-03 |
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ID=87610239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310906415.4A Active CN116624869B (en) | 2023-07-24 | 2023-07-24 | Low nitrogen emission's grate finned tube |
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| Country | Link |
|---|---|
| CN (1) | CN116624869B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255277A (en) * | 2017-07-13 | 2017-10-17 | 浙江滨特热能科技股份有限公司 | A kind of water cooling finned tube fire row premixes low NO entirely |
| CN110553260A (en) * | 2019-09-10 | 2019-12-10 | 杭州卡瓦顿热能科技有限公司 | Full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler |
| CN111141028A (en) * | 2020-01-13 | 2020-05-12 | 西安交通大学 | Gas condensing boiler with high-adjusting-ratio water-cooling premixed combustion and high-strength heat exchange |
| CN212481282U (en) * | 2020-04-08 | 2021-02-05 | 西安威仕曼新能源科技有限公司 | Horizontal full-premixing low-nitrogen gas boiler |
| CN215114140U (en) * | 2021-07-09 | 2021-12-10 | 洛森锅炉有限公司 | Compact flue gas condenser |
-
2023
- 2023-07-24 CN CN202310906415.4A patent/CN116624869B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255277A (en) * | 2017-07-13 | 2017-10-17 | 浙江滨特热能科技股份有限公司 | A kind of water cooling finned tube fire row premixes low NO entirely |
| CN110553260A (en) * | 2019-09-10 | 2019-12-10 | 杭州卡瓦顿热能科技有限公司 | Full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler |
| CN111141028A (en) * | 2020-01-13 | 2020-05-12 | 西安交通大学 | Gas condensing boiler with high-adjusting-ratio water-cooling premixed combustion and high-strength heat exchange |
| CN212481282U (en) * | 2020-04-08 | 2021-02-05 | 西安威仕曼新能源科技有限公司 | Horizontal full-premixing low-nitrogen gas boiler |
| CN215114140U (en) * | 2021-07-09 | 2021-12-10 | 洛森锅炉有限公司 | Compact flue gas condenser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116624869A (en) | 2023-08-22 |
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