CN110553260A - Full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler - Google Patents
Full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler Download PDFInfo
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- CN110553260A CN110553260A CN201910850398.0A CN201910850398A CN110553260A CN 110553260 A CN110553260 A CN 110553260A CN 201910850398 A CN201910850398 A CN 201910850398A CN 110553260 A CN110553260 A CN 110553260A
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- water
- heat exchanger
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- combustor
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- 238000009833 condensation Methods 0.000 title claims abstract description 44
- 230000005494 condensation Effects 0.000 title claims abstract description 44
- 239000010935 stainless steel Substances 0.000 title claims abstract description 38
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 38
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 40
- 238000002485 combustion reaction Methods 0.000 title claims description 14
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000003546 flue gas Substances 0.000 claims abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000000498 cooling water Substances 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 12
- 230000007797 corrosion Effects 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000004927 fusion Effects 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000002737 fuel gas Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
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- 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
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- 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
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/34—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side
- F24H1/36—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water chamber arranged adjacent to the combustion chamber or chambers, e.g. above or at side the water chamber including one or more fire tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
Abstract
The utility model relates to a low nitrogen condensation stainless steel boiler of full premix water-cooling burning, including the water-cooling combustor, the fluorescent lamp, the primary heat exchanger, the second grade condensation heat exchanger, the hydroecium, body frame, the flue gas collector, the water-cooling combustor, the fluorescent lamp, the primary heat exchanger, the second grade condensation heat exchanger, the hydroecium, the flue gas collector is all installed on body frame, fluorescent lamp and water-cooling combustor, the primary heat exchanger, heat transfer element in the second grade condensation heat exchanger all adopts the stainless steel, the water-cooling combustor, the space constitutes low temperature furnace chamber between the primary heat exchanger, the water-cooling combustor, the fluorescent lamp, the primary heat exchanger, the second grade condensation heat exchanger loops through the hydroecium intercommunication, the water-cooling combustor, low temperature furnace chamber, the primary heat exchanger, the second grade condensation heat exchanger, the flue, And (4) water-cooling the combustor. The method is energy-saving and environment-friendly, NOx emission is lower than 30mg/m, the occupied area is small, the safety and stability are high, and the environmental suitability is strong.
Description
Technical Field
the application relates to a full premix water-cooling burning low-nitrogen condensation stainless steel hot water boiler for need use the occasion of hot water as outside heat transfer medium, like heating heat supply, confession life hot water etc..
Background
The domestic common hot water boiler mainly comprises the following technologies:
1. The traditional smoke tube type shell boiler is widely used, but the heat efficiency is not high; the traditional gun type combustor is adopted, and the NOx emission is high; the boiler has large volume and large floor area; the boiler needs a thicker heat-insulating layer, and a plurality of manufacturers adopt toxic heat-insulating materials, so that the boiler is not environment-friendly; the tail heating surface is made of carbon steel or ND steel, and the corrosion resistance is poor.
2. Compared with the traditional boiler, the cast aluminum type condensation hot water boiler adopts the metal fiber surface burner, the NOx emission is low, and the boiler thermal efficiency is high; but the flame stability is poor and the tempering is easy; meanwhile, the environment adaptability is poor, impurities in air or fuel gas easily block surface fiber holes and need to be cleaned manually at regular intervals, otherwise, a combustion head is easily burnt out; the main material of the boiler body is cast aluminum, and due to the limitation of domestic manufacturing process, the defect rate of the cast aluminum is high; the protruding structures in the water channel and the flue are easy to damage; when the water quality is poor, the water channel is easy to block.
Disclosure of Invention
To the above-mentioned not enough of prior art, the technical problem that this application was solved provides a low nitrogen condensation stainless steel boiler of full premix water-cooling burning, and this boiler is energy-concerving and environment-protective, and area is little, does not temper simultaneously, and security stability is high, and environmental suitability is strong.
The technical scheme adopted by the application for solving the technical problems is as follows:
The utility model provides a low nitrogen condensation stainless steel boiler of full premix water-cooling burning, includes water-cooling combustor, fluorescent lamp, one-level heat exchanger, second grade condensation heat exchanger, hydroecium, body frame, flue gas collector, and water-cooling combustor, fluorescent lamp, one-level heat exchanger, second grade condensation heat exchanger, hydroecium, flue gas collector all install on body frame, and its structural feature lies in: the heat exchange elements in fluorescent tube and water-cooling combustor, one-level heat exchanger, the second grade condensation heat exchanger (including combustor spiral finned tube, one-level heat exchanger spiral finned tube, second grade condensation heat exchanger spiral finned tube) all adopt the stainless steel to make, space constitutes low temperature furnace between water-cooling combustor, the one-level heat exchanger, the second grade condensation heat exchanger loops through the hydroecium intercommunication, water-cooling combustor, low temperature furnace, one-level heat exchanger, second grade condensation heat exchanger, flue gas collector from top to bottom arrange in proper order to the flue gas is for flowing from top to bottom, and cold water flows through in proper order second grade condensation heat exchanger, one-level heat exchanger, low temperature furnace, water-cooling combustor, thereby the water side is for flowing from bottom to top.
The water-cooled burner comprises burner spiral finned tubes, a distribution plate, a flow guide plate and an air inlet, wherein the fins of the burner spiral finned tubes are folded into polygons, the flow guide plate is arranged between the burner spiral finned tubes, the distribution plate is arranged at the upper part of the burner spiral finned tubes, small holes are formed in the distribution plate, the aperture range of the small holes is phi 3 ~ phi 10, when the small holes are too small, the small holes are easy to block the small holes, and when the small holes are too large, the airflow distribution is uneven, the flow velocity of mixed gas passing through the small holes is larger than the maximum propagation velocity of flame, and a certain safety margin is reserved, in the embodiment, the safety coefficient is 1.2, for example, when the fuel gas is hydrogen, the maximum propagation velocity of flame of the fuel gas in the small holes is more than 3.2m/s, when the fuel gas is methane, the maximum propagation velocity of flame of the fuel gas in the small holes is more than 0.37m/s, and the pitch between the burner spiral finned tubes is 3 ~ 10 mm.
And cooling water channels are arranged on two sides of the water-cooled burner, an ignition device is arranged on each cooling water channel, and two ends of each cooling water channel are communicated with the water chambers.
The ignition device comprises an igniter, a flame detector and a fire observation hole, and is communicated with the low-temperature hearth and can be interchanged left and right in the prior art.
The guide plate is T-shaped structure, which is beneficial to the circulation of mixed gas and can adopt structures with other shapes.
The hydroecium includes preceding hydroecium and back hydroecium, and the hydroecium is formed by the corrosion resistant plate welding, there is the baffle in the hydroecium, and the rivers of heating are restricted to S-shaped four times in this example and are crossed the water-cooling burning low nitrogen condensation stainless steel boiler of premixing entirely through the baffle.
Two layers of staggered light tubes are arranged in the middle of the low-temperature hearth.
The heat exchange elements of the water-cooled burner, the primary heat exchanger and the secondary condensation heat exchanger are all the same laser welding stainless steel spiral finned tubes, the laser welding stainless steel spiral finned tubes between the upper layer and the lower layer of the water-cooled burner, the primary heat exchanger and the secondary condensation heat exchanger are arranged in a staggered mode, the pitch between the fins of the laser welding stainless steel spiral finned tubes is 3 ~ 10mm, and the pipe diameter of the base pipe is phi 18 to 18 ~ phi 42.
And cooling water channels are arranged on two sides of the primary heat exchanger, the secondary condensing heat exchanger and the light pipe.
Compared with the prior art, the method has the following advantages:
1. The flue gas is from top to bottom, and rivers are from bottom to top, and the adverse current is arranged, and heat transfer warm-pressing maximize, and required heat transfer area reduces, and the indirect heating equipment volume reduces.
2. The distribution plate in the water-cooled burner is provided with small holes, and the flow rate of mixed gas passing through the small holes is far greater than the burning speed of flame, so that the tempering is prevented.
3. The burner spiral finned tube in the water-cooled burner is of a flanging structure, the flow velocity of mixed gas between every two fins is far greater than the burning velocity of flame, and meanwhile, the flow guide plate between the tube and the tube is matched to enable the airflow to be cooled by the tube to the maximum extent, so that high-temperature smoke is reduced to be below an ignition point, and tempering is prevented.
4. The mixed gas is combusted on the surface of a parallel combustor spiral fin tube group to form tens of thousands of small flames, the flames are low in temperature and are dispersed, part of generated heat is rapidly absorbed by cooling water in the combustor spiral fin tubes, in addition, two layers of light tubes arranged in the middle of a low-temperature hearth also rapidly absorb part of the heat, and through the three measures, the whole temperature level of a hearth region is lower, the actual temperature level of the low-temperature hearth is measured to be 900 ~ 1100 ℃, NOx generated by boiler combustion is mainly thermal NOx, the relationship between the generation and the temperature of the thermal NOx is large, the reaction rate is exponentially increased along with the increase of the reaction temperature T, the generation amount of the NOx is not large when the T is less than 1300 ℃, and the reaction rate is increased by 6-7 times when the T is more than 1300 ℃, so that the reaction rate is increased by 100 ℃ when the T is more than 900 ~ 1100 ℃, the generation of the thermal NOx can be effectively inhibited, the emission of the NOx is reduced by being measured to be lower than 30mg/m, and the NOx emission of a common boiler is generally more than 150 mg/m.
5. The diameter (phi 3 ~ phi 10) of the holes on the distribution plate and the pitch (3 ~ 10 mm) between the spiral finned tube fins of the burner are far larger than the diameter (the diameter is generally less than 0.5 mm) of the meshes on the metal fiber surface burner, and impurities in gas or air cannot block, so that the environmental adaptability is very strong.
6. The heat exchange elements of the primary heat exchanger and the secondary condensing heat exchanger are laser welded stainless steel spiral finned tubes, the fusion degree of fins and base tubes of the laser welded stainless steel spiral finned tubes is good, the weld fusion rate is 100%, the heat exchange effect is 1.5 times of that of common high-frequency resistance welded spiral finned tubes, and therefore the whole equipment is small in size.
7. The heat exchange element and other structural components are made of stainless steel, so that the heat exchange element is good in corrosion resistance and long in service life.
8. the base pipe of the spiral finned tube adopts a large pipe diameter, and meanwhile, the inside of the pipe or the water channel does not have a protruding structure, so that the base pipe cannot be blocked when the water quality is poor.
9. The front and the back of the boiler are provided with water chambers, the left and the right are provided with cooling water channels, the integral structure is water drum fire, the temperature of the outer surface of the equipment is lower, a heat-insulating layer does not need to be covered, the cost is reduced, and the pollution is reduced.
Drawings
Fig. 1 is a front sectional view of an embodiment of the present application.
Fig. 2 is a left side sectional view of fig. 1.
Fig. 3 is an enlarged view at I in fig. 1.
In the figure: 1- (premixed gas) air inlet, 2-buffer chamber, 3-distribution plate, 4-burner spiral finned tube, 5-guide plate, 6-side plate, 7-cooling water channel, 8-ignition device, 9-light pipe, 10-primary heat exchanger spiral finned tube, 11-secondary condensation heat exchanger spiral finned tube, 12-flue gas collector, 13-low temperature hearth, 14-water outlet pipe seat, 15-water return pipe seat, 16-rear water chamber, 17-front water chamber, 18-partition plate, 19-pipe plate, 20-condensate water discharge port, 21-base pipe and 22-fin.
Detailed Description
The present application will be described in further detail with reference to specific embodiments.
Referring to fig. 1 to 3, the fully premixed water-cooled combustion low-nitrogen condensation stainless steel hot water boiler in the embodiment includes a water-cooled burner, a low-temperature furnace, a primary heat exchanger, a secondary condensation heat exchanger, a flue gas collector, a water chamber, and a body frame, which are arranged from top to bottom.
The water-cooled burner comprises a burner spiral finned tube 4, a distribution plate 3, a flow guide plate 5, a buffer chamber 2 and an air inlet 1, wherein the burner spiral finned tube 4 is a laser-welded stainless steel spiral finned tube, the fins are folded into polygons, the flow guide plate 5 is arranged between the tubes, the flow guide plate 5 is in a T-shaped structure in the embodiment, structures with other shapes can be adopted, the distribution plate 3 is arranged on the upper portion of each tube, the arrangement relationship among the distribution plate and the tubes is shown in detail in figure 3, the burner spiral finned tube 4 is in welded connection with the tube plate 19, cooling water channels 7 are arranged on two sides of the water-cooled burner, an ignition device 8 is arranged on each cooling water channel 7, an igniter, a flame detector and a flame observation hole are arranged on each ignition device 8, each ignition device 8 is fixed by bolts and can be interchanged left and right, small holes are formed in the distribution plate 3, the aperture range of the small holes is phi 3 ~ phi 10, when the small holes are too small holes are small, impurities in air or gas can easily block the small holes, when the small holes are too large holes, the small holes can cause the air flow velocity, the flow velocity of mixed gas passing through the small holes is larger than the maximum propagation velocity of the flame, the maximum propagation velocity of the flame is equal to be equal to 2.2, when the gas is equal to or more than 0.5, and the.
The low-temperature hearth is a space between the spiral finned tube 4 of the burner and the spiral finned tube 10 of the primary heat exchanger and is used for fully burning premixed gas, and the middle part of the low-temperature hearth is provided with two layers of staggered light tubes 9. And cooling water channels 7 are arranged on two sides of the low-temperature hearth.
The primary heat exchanger is arranged at the lower part of the light pipe 9 and is three rows of primary heat exchanger spiral finned tubes 10 which are arranged in a staggered mode, and the primary heat exchanger spiral finned tubes 10 are connected with a tube plate 19 in a welded mode. And cooling water channels 7 are arranged on two sides of the primary heat exchanger.
The secondary condensation heat exchanger is arranged on the lower portion of the primary heat exchanger and is three rows of secondary condensation heat exchanger spiral finned tubes 11 which are arranged in a staggered mode, and the secondary condensation heat exchanger spiral finned tubes 11 are connected with tube plates 19 in a welded mode. And cooling water channels 7 are arranged on two sides of the secondary condensation heat exchanger.
The body frame comprises a tube plate 19 and a side plate 6 to form a rectangular box body, and the tube plate 19 is connected with the side plate 6 in a welding mode.
The hydroecium includes preceding hydroecium 17 and back hydroecium 16, and the hydroecium is formed by the corrosion resistant plate welding each other to welded fastening is on tube sheet 19, there is baffle 18 in the hydroecium, and low nitrogen condensation stainless steel boiler water inlet of full premix water-cooling burning (return water tube seat 15) loops through second grade condensation heat exchanger spiral finned tube 11, one-level heat exchanger spiral finned tube 10, light pipe 9, combustor spiral finned tube 4 and the low nitrogen condensation stainless steel boiler delivery port of full premix water-cooling burning (play water tube seat 14) intercommunication, and the rivers that will be heated are restricted to S-shaped four times through baffle 18 promptly and are passed through the boiler (see figure 2), thereby increase heat transfer area of contact, improve heat exchange efficiency. The upper part of the rear water chamber 16 is provided with a water outlet pipe seat 14, and the lower part is provided with a water return pipe seat 15.
The flue gas collector 12 is arranged at the lower part of the body frame, is made of stainless steel and is connected with the body frame by a flange. The flue gas collector 12 is of a funnel-shaped structure, and a condensate water discharge port 20 is arranged at the bottommost part of the flue gas collector 12.
the burner spiral finned tube 4, the primary heat exchanger spiral finned tube 10 and the secondary condensing heat exchanger spiral finned tube 11 all adopt the same laser welding stainless steel spiral finned tube, the pitch between the fins 22 of the laser welding stainless steel spiral finned tube is 3 ~ 10mm, the welding seam fusion rate of the fins 22 and the base tube 21 is 100 percent, namely the fusion thickness of the fins 22 is equal to the actual thickness of the fins 22, the heat exchange effect is 1.5 times of that of the common high-frequency resistance welding spiral finned tube, and therefore the whole equipment is small in size.
The base pipe 21 of the laser welding stainless steel spiral finned pipe adopts a large pipe diameter, and meanwhile, no protruding structure exists in the pipe or the water channel, so that the pipe or the water channel cannot be blocked when the water quality is poor.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above contents described in the present specification are merely illustrative of the structures of the present application. Equivalent or simple changes in the constructions, features and principles described in the patent application are included in the protection scope of the present application. Various modifications, additions and substitutions for the specific embodiments described herein may occur to those skilled in the art without departing from the scope and spirit of the invention as defined by the accompanying claims.
Claims (10)
1. The utility model provides a low nitrogen condensation stainless steel boiler of full premix water-cooling burning, includes water-cooling combustor, fluorescent lamp, one-level heat exchanger, second grade condensation heat exchanger, hydroecium, body frame, flue gas collector, and water-cooling combustor, fluorescent lamp, one-level heat exchanger, second grade condensation heat exchanger, hydroecium, flue gas collector all install on body frame its characterized in that: the heat exchange elements in fluorescent tube and water-cooled burner, one-level heat exchanger, the second grade condensation heat exchanger all adopt the stainless steel to make, space constitutes low temperature furnace between water-cooled burner, the one-level heat exchanger, water-cooled burner, fluorescent tube, one-level heat exchanger, second grade condensation heat exchanger loop through the hydroecium intercommunication, water-cooled burner, low temperature furnace, one-level heat exchanger, second grade condensation heat exchanger, flue gas collector from top to bottom arrange in proper order to the flue gas is for from top to bottom flowing, and cold water flows through in proper order second grade condensation heat exchanger, one-level heat exchanger, low temperature furnace, water-cooled burner.
2. The full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler according to claim 1, wherein the water-cooled combustor comprises combustor spiral finned tubes, distribution plates, guide plates and air inlets, fins of the combustor spiral finned tubes are folded into polygons, the guide plates are arranged among the combustor spiral finned tubes, the distribution plates are arranged on the upper portions of the combustor spiral finned tubes, small holes are formed in the distribution plates, and the aperture range of the small holes is 3 ~ 10 mm.
3. The full premix water-cooled combustion low nitrogen condensing stainless steel hot water boiler according to claim 2, characterized in that: the flow speed of the mixed gas passing through the small holes on the distribution plate is more than 1.2 times of the maximum propagation speed of the flame.
4. The full premix water-cooled combustion low nitrogen condensing stainless steel hot water boiler according to claim 1, characterized in that: and cooling water channels are arranged on two sides of the water-cooled burner, an ignition device is arranged on each cooling water channel, and two ends of each cooling water channel are communicated with the water chambers.
5. The full premix water-cooled combustion low nitrogen condensing stainless steel hot water boiler according to claim 4, characterized in that: the ignition device comprises an igniter, a flame detector and a fire observation hole, and is communicated with the low-temperature hearth.
6. The full premix water-cooled combustion low nitrogen condensing stainless steel hot water boiler according to claim 1, characterized in that: the guide plate is of a T-shaped structure.
7. The full premix water-cooled combustion low nitrogen condensing stainless steel hot water boiler according to claim 1, characterized in that: the hydroecium includes preceding hydroecium and back hydroecium, and the hydroecium is formed by the corrosion resistant plate welding, there is the baffle in the hydroecium, and the rivers of will heating are restricted to S-shaped four times and are crossed full premix water-cooling burning low nitrogen condensation stainless steel boiler through the baffle.
8. The full premix water-cooled combustion low nitrogen condensing stainless steel hot water boiler according to claim 1, characterized in that: two layers of staggered light tubes are arranged in the middle of the low-temperature hearth.
9. The fully premixed water-cooled combustion low-nitrogen condensation stainless steel hot water boiler according to claim 1, characterized in that the same laser welded stainless steel spiral finned tubes are used as the heat exchange elements of the water-cooled burner, the primary heat exchanger and the secondary condensation heat exchanger, the laser welded stainless steel spiral finned tubes between the upper layer and the lower layer of the water-cooled burner, the primary heat exchanger and the secondary condensation heat exchanger are arranged in a staggered manner, the pitch between the fins of the laser welded stainless steel spiral finned tubes is 3 ~ 10mm, the pipe diameter of the base pipe is 18 ~ 42 mm, and the weld seam fusion rate of the fins and the base pipe is 100%.
10. The full premix water-cooled combustion low nitrogen condensing stainless steel hot water boiler according to claim 4, characterized in that: and cooling water channels are arranged on two sides of the primary heat exchanger, the secondary condensing heat exchanger and the light pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850398.0A CN110553260A (en) | 2019-09-10 | 2019-09-10 | Full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910850398.0A CN110553260A (en) | 2019-09-10 | 2019-09-10 | Full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553260A true CN110553260A (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910850398.0A Withdrawn CN110553260A (en) | 2019-09-10 | 2019-09-10 | Full-premixing water-cooled combustion low-nitrogen condensation stainless steel hot water boiler |
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| CN (1) | CN110553260A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032698A (en) * | 2020-09-18 | 2020-12-04 | 江苏双良锅炉有限公司 | Novel low-nitrogen-emission cold flame combustion integrated steam boiler |
| CN113432122A (en) * | 2021-06-09 | 2021-09-24 | 西安交通大学 | Pressure-bearing type multiple water-cooling premixing gas device |
| CN116624869A (en) * | 2023-07-24 | 2023-08-22 | 无锡派诺尼奥工业设备有限公司 | Low nitrogen emission's grate finned tube |
-
2019
- 2019-09-10 CN CN201910850398.0A patent/CN110553260A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032698A (en) * | 2020-09-18 | 2020-12-04 | 江苏双良锅炉有限公司 | Novel low-nitrogen-emission cold flame combustion integrated steam boiler |
| CN113432122A (en) * | 2021-06-09 | 2021-09-24 | 西安交通大学 | Pressure-bearing type multiple water-cooling premixing gas device |
| CN113432122B (en) * | 2021-06-09 | 2022-08-05 | 西安交通大学 | Pressure-bearing type multiple water-cooling premixing gas device |
| CN116624869A (en) * | 2023-07-24 | 2023-08-22 | 无锡派诺尼奥工业设备有限公司 | Low nitrogen emission's grate finned tube |
| CN116624869B (en) * | 2023-07-24 | 2023-10-03 | 无锡派诺尼奥工业设备有限公司 | Low nitrogen emission's grate finned tube |
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Application publication date: 20191210 |
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| WW01 | Invention patent application withdrawn after publication |