CN211261244U - Ultralow nitrogen oxide combustion apparatus - Google Patents
Ultralow nitrogen oxide combustion apparatus Download PDFInfo
- Publication number
- CN211261244U CN211261244U CN201921175444.3U CN201921175444U CN211261244U CN 211261244 U CN211261244 U CN 211261244U CN 201921175444 U CN201921175444 U CN 201921175444U CN 211261244 U CN211261244 U CN 211261244U
- Authority
- CN
- China
- Prior art keywords
- water
- air
- water tank
- pipe
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses an ultralow nitrogen oxide burner, it includes cooling chamber, gas chamber and combustion chamber. The fuel gas enters the fuel gas chamber through the air inlet pipe and then enters the combustion chamber through the injection nozzle. The air enters the combustion chamber from the side surface of the combustion device through the air inlet pipe of the fan in two paths, one path of air enters the combustion chamber from the side wall of the combustion chamber along the tangential direction by a plurality of tangential air ports, and the air entering the combustion chamber forms high-speed vortex under the action of the air guide pipe and the air guide strip; the other path of the air enters the center of the combustion chamber from the side of the balance disc and is divided into a plurality of outlets by the air guide disc to be discharged along the radial direction; the two paths of air in the combustion chamber are fully stirred, mixed and combusted with the fuel gas sprayed by the nozzle. High-temperature flue gas enters the two air inlet pipes through the recovery pipeline, and is sucked into the combustion chamber to participate in combustion again by utilizing the pressure and the siphon effect of the flue gas. The utility model discloses not only make NOx discharge ultralow, discharge nearly zero, have characteristics such as small, power is big, with low costs, range of application is wide, super energy-conservation moreover.
Description
Technical Field
The utility model relates to a burner especially relates to an ultralow nitrogen oxide burner.
Background
The existing low-nitrogen oxide combustion device has the following characteristics: the combustion principle is improved on the basis of the original industrial boiler; after the boiler is combusted, the high-temperature and low-oxygen flue gas which is not fully combusted is secondarily mixed with air, so that oxygen in the air is diluted and returned to the combustion device for combustion again, and the generation and emission of NOx are reduced. However, the existing device is generally used for large industrial boilers, and has the defects of large volume, complex structure, high transformation difficulty, high cost, unobvious energy-saving and environment-friendly effects and the like. As in the chinese patent application: 201910032039.4, a combustion method of ultra-low nitrogen oxide and a matched combustion head and a combustion device; there is also ZL01141862.1, an industrial boiler with high temperature hypoxic air burner.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an ultra-low nitrogen oxide burner is provided, it not only makes NOx discharge ultralow, discharges nearly zero, has characteristics such as small, power is big, with low costs, range of application is wide, super energy-conservation moreover.
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
an ultra-low nitrogen oxide combustion device is characterized by comprising:
the first water tank 9 is provided with a double-layer shell, a heat insulation plate 10 is arranged outside the outer layer shell, a water containing space is reserved between the double-layer shell, a first water inlet pipe 14 is arranged in the water containing space, and a hot water or steam output pipe 18 extends into the inner layer shell;
a second water tank 21 built in the inner shell of the first water tank 9; the bottom of the second water tank is fixed with a bracket 22, the inner cavity of the second water tank 21 is enclosed by a plurality of vertical plates to form a water channel which is bent and communicated left and right or up and down, a second water inlet pipe 13 and an outlet part are arranged at two ends of the water channel, and the outlet is connected with the hot water or steam output pipe 18;
a burner 3, located below the second water tank 21, comprising: a cooling chamber 32 provided with a cooling water inlet pipe 1 and a cooling water outlet pipe 5, wherein a gas chamber 37 is arranged in the cooling chamber 32; the top of the gas chamber 37 is provided with a plurality of nozzles 52, the bottom of the gas chamber is provided with a gas inlet pipe 4, the upper part of the gas chamber 37 is provided with a combustion chamber 42, the top of the gas chamber is provided with an air outlet disc 45 provided with a plurality of air outlet holes, the side wall of the gas chamber is provided with a plurality of tangential air inlet guide rings 48 and air guide strips 43, so that air rotates at high speed along the tangential direction of the inner wall of the combustion chamber 42 to form vortex, and an air inlet is connected to a first; the water outlet pipe 5 is connected with a spiral pipe type heat exchanger 12 which surrounds the outside of the second water tank 21, and the final outlet end is connected with a second water inlet pipe 13;
a heat-insulating cylinder 20 which is wrapped with a heat-insulating layer 7 outside, has an upward cylinder bottom and is provided with a hole, is sleeved outside the spiral tube type heat exchanger 12, and a high-temperature flue gas descending space is reserved between the outside of the heat-insulating layer 7 and the inner shell of the first water tank 9;
a fan, the air outlet pipe of which is connected with the first air inlet pipe 26;
the bracket 22 of the second water tank 21 is supported outside the combustion chamber 42 of the burner 3, the burner 3 is supported on the top plate of a frame 2, a gap is reserved between the bottom of the second water tank 21 and the burner 3, a cavity is reserved between the second water tank 21 and the heat-insulating cylinder 20, high-temperature flue gas of the burner 3 passes through the gap between the bottom of the second water tank 21 and the burner 3 from the air outlet disc 45, enters the cavity between the second water tank 21 and the heat-insulating cylinder 20, and goes upwards through the spiral tube type heat exchanger 12;
the high-temperature flue gas descending space is communicated with a high-temperature flue gas outlet pipe 28 of a fan outlet pipe, and the water inlet pipe 1 is externally connected with a water pump.
The bottom plate of the combustion chamber 42 is provided with a balance disc 41 which is provided with an air inlet hole on the side wall and an air outlet hole upward in the middle, an air guide disc 47 is arranged on the air outlet hole, and the air guide disc 47 is provided with an air inlet in the middle of the bottom and an air outlet on the side surface; the air outlet pipe of the fan is divided into two branches, the other second air inlet pipe 27 is connected with the air inlet hole of the equalizing disc 41, and air is exhausted from the side surface of the air guide disc 47 in the middle of the combustion chamber 42 to participate in mixing and stirring of fuel gas.
The structure of the air guide disc 47 is as follows: the bottom surface is provided with an air inlet hole which is connected with the air inlet hole of the equalizing disc 41 in a butt joint way, and the side surface is provided with a plurality of air outlets.
The first water inlet pipe 14 is provided with a first water tank water adding control electromagnetic valve 15, the hot water or steam output pipe 18 is provided with a hot water and steam control electromagnetic valve 17, a pipeline is arranged between the first water inlet pipe 14 and the hot water or steam output pipe 18 for communication, and the pipeline is provided with a first water tank circulating water control electromagnetic valve 16.
The first water tank 9 is internally provided with a water tank water level controller 19, a steam high level controller 23 and a steam low level controller 24.
A combustion device heat insulation plate 6 is arranged between the combustor 3 and the heat insulation barrel 20.
The first water tank 9 is arranged on the frame 2, a high-voltage power supply inlet 29 and a high-low voltage control cabinet (liquid crystal display screen operation interface) 30 are arranged on the frame, support legs 8 are arranged at the bottom of the frame, and the outlet of the hot water-steam outlet pipe of the second water tank is a steam and hot water outlet 31.
The device is essentially different from the traditional combustion device. When the device is initially combusted, air and fuel gas rotate at high speed in the combustion chamber and collide with each other to achieve full mixing. When the temperature in the combustion chamber reaches and exceeds 700-800 ℃, due to the fact that the mixed gas rotates at high speed and collides to form vortex and generate huge suction, flames of high-temperature combustion are sucked in by force and compressed into the combustion chamber to be combusted. Because the rotating flame is sucked and compressed to a narrow combustion chamber and high-temperature air directly participates in combustion, huge energy is generated by the flame, and the temperature is as high as above 1400 ℃. The oxygen-poor flue gas which is not fully combusted is recycled and is secondarily mixed with newly-fed normal-temperature air, and the temperature is raised, so that the oxygen in the air is diluted, and the oxygen-poor combustion is formed.
Has the advantages that: the experimental data prove that: the utility model discloses a burner, not only NOx discharges the superlow, and small, power is big, with low costs, super energy-conservation moreover: the burner of a diameter 500, be equivalent to the gas boiler more than 5 tons, just the utility model discloses NOx's production, emission are nearly zero, reach energy-conservation, environmental protection, efficient utility model purpose.
Drawings
Fig. 1a is one of schematic cross-sectional views of an embodiment of the present invention;
FIG. 1b is a schematic cross-sectional view of the second tank of FIG. 1 a;
FIG. 2 is a schematic cross-sectional view of the second embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a burner according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of an air guide plate according to an embodiment of the present invention;
fig. 5 is a cross-sectional view along the outlet axis of fig. 4.
Reference numbers in the figures:
1-cooling water inlet pipe; 2-a frame; 3-a burner; 4-a gas inlet pipe; 5-cooling water outlet pipe; 6-a combustion device heat insulation plate; 7-insulating board of the heat-insulating cylinder; 8-a leg; 9-a first water tank; 10-a water tank heat insulation plate; 11-a housing; 12-tube heat exchangers; 13-a second water tank inlet pipe; 14-a first water tank inlet pipe; 15-a first water tank water adding control electromagnetic valve; 16-a first water tank circulating water control solenoid valve; 17-hot water supply-steam control solenoid valve; 18-a second water tank hot water-steam outlet pipe; 19-water level controller of water tank; 20-a heat preservation cylinder; 21-a second water tank; 22-a scaffold; 23-steam high level controller; 24-steam low level controller; 25-gas ignition-valve group control assembly; 26-a first air inlet pipe; 27-a second air inlet pipe; 28-high temperature flue gas outlet pipe; 29-high voltage power inlet; 30-high and low voltage control cabinet (LCD screen operation interface); 31-steam, hot water outlet; 32-a cooling chamber; 37-a gas chamber; 38-sealing gasket I; 39-a gasket; 40-a first sealing gasket; 41-homoeostatic disc; 42-a combustion chamber; 43-wind guide strips; 44-wind guide ring; 45-air outlet disc; 47-a wind-guiding disc; 48-a wind guide pipe; 49-a second sealing gasket; 50-bolt; 51-a resilient gasket; 52-nozzle.
Detailed Description
Referring to fig. 1a, 1b, 2 and 3, the ultra-low nox burner of the present invention comprises:
the top and the side wall of the first water tank 9 are double-layer shells (of course, all the double-layer shells can be used), the outer surface of the outer shell of the double-layer shell is provided with a heat insulation plate 10, the outer surface of the heat insulation plate 10 is provided with a shell 11, a water containing space is reserved between the double-layer shells, the top is provided with a first water inlet pipe 14 extending into the water containing space, and a hot water or steam output pipe 18 extending into the inner shell.
A second water tank 21 built in the inner shell of the first water tank 9; the bottom of the second water tank 21 is fixed with an annular support 22, the inner cavity of the second water tank 21 is enclosed by a plurality of vertical plates to form a water channel which is bent and communicated left and right (or up and down), the water channel can be a heat exchanger, the top of the water channel is provided with one end of a second water inlet pipe 13 extending into the water channel, the other end of the water channel is provided with an outlet, and the outlet is connected with the hot water or steam output pipe 18.
A burner 3, located below the second water tank 21, comprising: a cooling chamber 32 provided with a cooling water inlet pipe 1 and a cooling water outlet pipe 5, wherein a gas chamber 37 is arranged in the cooling chamber 32;
the top of the gas chamber 37 is provided with a plurality of nozzles 52, the bottom is provided with a gas inlet pipe 4, and the gas inlet pipe 4 penetrates out of the cooling chamber 32;
the combustion chamber 42 is arranged above the combustion chamber 37, the top of the combustion chamber is provided with an air outlet disc 45 with a plurality of air outlet holes, the side wall of the combustion chamber is provided with a plurality of tangential air inlet guide rings 48 and guide strips 43, the incoming air can rotate at high speed along the tangential direction of the inner wall of the combustion chamber 42 to form a vortex, and the air inlet is connected to the first air inlet pipe 26.
The water outlet pipe 5 is connected with the spiral pipe type heat exchanger 12 and surrounds the second water tank 21, and the final outlet end is connected with the second water inlet pipe 13.
A heat insulation layer 7 is wrapped outside the cylinder wall, a heat insulation cylinder 20 with an upward cylinder bottom and a hole is sleeved outside the spiral tube type heat exchanger 12, and a high-temperature flue gas descending space is reserved between the outside of the heat insulation layer 7 and the inner shell of the first water tank 9;
a fan, the air outlet pipe of which is connected with the first air inlet pipe 26;
the support 22 of the second water tank 21 is supported outside the combustion chamber 42 of the combustor 3, the combustor 3 is supported on a top plate of a frame 2, a gap is reserved between the bottom of the second water tank 21 and the combustor 3, a cavity is reserved between the second water tank 21 and the heat-insulating cylinder 20 besides the spiral tube type heat exchanger 12, so that high-temperature flue gas of the combustor 3 passes through the gap reserved between the bottom of the second water tank 21 and the combustor 3 from the air outlet disc 45, enters the cavity reserved between the second water tank 21 and the heat-insulating cylinder 20, and goes upwards through the spiral tube type heat exchanger 12.
The high-temperature flue gas descending space is communicated with a high-temperature flue gas outlet pipe 28 of a fan outlet pipe, and the water inlet pipe 1 is externally connected with a water pump.
The bottom plate of the combustion chamber 42 is provided with a balance disc 41 which is provided with an air inlet hole on the side wall and an air outlet hole upwards in the middle, an air guide disc 47 is arranged on the air outlet, and the air guide disc 47 is provided with an air inlet in the middle of the bottom and an air outlet on the side surface; a plurality of nozzles 52 at the top of the gas chamber 37 extend through the equalizing disc 41 into the combustion chamber.
The combustion chamber 42 of the embodiment is vertically split, the upper part is in a tubular shape with a connecting flange, the upper part of the pipe is provided with an air outlet disc 45, the lower part of the pipe is provided with a balance disc 41, a second sealing washer 49 is arranged between the upper part and the lower part, a first sealing washer 40 is arranged between the bottom surface of the balance disc 41 and the top opening flange surface of the cooling chamber 32, and the upper connecting flange of the combustion chamber 42, the balance disc 41 and the top opening flange surface of the cooling chamber 32 are connected through a bolt 50 and an elastic washer 51.
The air outlet pipe of the fan is divided into two branches, the other second air inlet pipe 27 is connected with the air inlet hole on the side surface of the equalizing disc 41, and air is exhausted from the air guide disc 47 in the middle of the combustion chamber 42 to participate in mixing and stirring of fuel gas.
The first water inlet pipe 14 is provided with a first water tank water adding control electromagnetic valve 15, the hot water or steam output pipe 18 is provided with a hot water and steam control electromagnetic valve 17, a pipeline is arranged between the first water inlet pipe 14 and the hot water or steam output pipe 18 for communication, and the pipeline is provided with a first water tank circulating water control electromagnetic valve 16.
The first water tank 9 is internally provided with a water tank water level controller 19, a steam high level controller 23 and a steam low level controller 24.
A combustion device heat insulation plate 6 is arranged between the combustor 3 and the heat insulation barrel 20.
The first water tank 9 is arranged on the frame 2, a high-voltage power supply inlet 29 and a high-low voltage control cabinet (liquid crystal display screen operation interface) 30 are arranged on the frame, support legs 8 are arranged at the bottom of the frame, and the outlet of the hot water-steam outlet pipe of the second water tank is a steam and hot water outlet 31.
Working principle (ultra-low oxygen combustion):
the system of the burner 3 is powered on, the system detects the water level of the water tank according to the current function gear, the water tank water adding control electromagnetic valve 15 is opened, tap water enters the first water tank 9 and the second water tank 21, the water level reaches the water level set by the water tank, the water level controller 19 acts, the water tank water adding control electromagnetic valve 15 is closed, and the water tank water adding is finished.
And pressing an on/off key, starting the fan and the water pump simultaneously, and checking whether the system leaks water or not and whether the fan can supply air normally or not.
After 30 seconds of operation, the gas ignites, the valve group control assembly 25 ignites and supplies gas. The gas passes through the cooling chamber 32 along the gas inlet pipe 4 and enters the gas chamber 37, and the gas is uniformly injected into the combustion chamber 42 through the gas nozzles 52 and the plurality of gas nozzles 52 by the pressure of the gas; the gas and the normal temperature air are mixed and stirred fully in a multi-layer way through the air guide pipe 48, the air guide ring 44, the air guide strip 43 and the air guide disc 46. At the same time, the valve group control assembly 25 ignites the gas mixture inside the burner 3, and the burner 3 starts to operate.
When the gas is initially combusted, the temperature in the combustion chamber 42 does not reach over 800 ℃, the flame cannot be sucked into the combustion chamber 42 to realize flameless combustion, and a large amount of high-temperature low-oxygen combustible flue gas is generated. Due to the wind pressure of the fan, the high-temperature flue gas moves upwards along the inner side of the heat-insulating cylinder 20 through the tubular heat exchanger 12, and due to the closed top of the first water tank 9, the high-temperature flue gas is forced to move downwards along the gap between the outer side of the heat-insulating cylinder 20 and the inner side of the first water tank 9, finally enters the first air inlet pipe 26 from the high-temperature flue gas outlet pipe 28, is mixed with the normal-temperature air again, dilutes the oxygen in the air, becomes low-oxygen air with the oxygen content lower than 10%, and enters the combustion chamber 42 to participate in combustion again. In the low oxygen air and the high temperature of the combustion chamber 42 above 1000 ℃, the high temperature air which is originally low in oxygen content is burnt to remove oxygen in a proper proportion, so that the generation and the emission of the NOx of the combustor 3 are nearly zero, and the purposes of energy conservation, environmental protection and high efficiency are achieved.
Claims (10)
1. An ultra-low nitrogen oxide combustion device is characterized by comprising:
a first water tank (9) which is provided with double-layer shells, a water containing space is reserved between the double-layer shells, a first water inlet pipe (14) is arranged in the water containing space, and a hot water or steam output pipe (18) extends into the inner-layer shell;
the second water tank (21) is arranged in the inner shell of the first water tank (9), the inner cavity of the second water tank (21) is enclosed into a water channel which is bent and communicated left and right or up and down by a plurality of vertical plates, a second water inlet pipe (13) and an outlet are arranged at two ends of the water channel, and the outlet is connected with the hot water or steam output pipe (18);
the burner (3) is positioned below the second water tank (21), a cooling water outlet pipe (5) is connected with a spiral pipe type heat exchanger (12) and surrounds the second water tank (21), and the final outlet end of the burner is connected with a second water inlet pipe (13);
a heat-insulating cylinder (20) which is wrapped with a heat-insulating layer (7) outside, the cylinder bottom of which is upward and provided with a hole is sleeved outside the spiral tube type heat exchanger (12), and a high-temperature flue gas descending space is reserved between the outside of the heat-insulating layer (7) and the inner shell of the first water tank (9);
the air outlet pipe of the fan is connected with the first air inlet pipe (26);
a gap is reserved between the bottom of the second water tank (21) and the combustor (3), and a cavity is reserved between the second water tank (21) and the heat-insulating cylinder (20); the high-temperature flue gas descending space is communicated with a high-temperature flue gas outlet pipe (28) of a fan air outlet pipe, and the water inlet pipe (1) is externally connected with a water pump.
2. The ultra low nox combustion device of claim 1, wherein: the burner (3) comprises: a cooling chamber (32) provided with a cooling water inlet pipe (1) and a cooling water outlet pipe (5), wherein a gas chamber (37) is arranged in the cooling chamber (32); the top of the gas chamber (37) is provided with a plurality of nozzles (52), the bottom of the gas chamber is provided with a gas inlet pipe (4), the upper part of the gas chamber (37) is provided with a combustion chamber (42), the top of the gas chamber is provided with an air outlet disc (45) with a plurality of air outlet holes, the side wall of the gas chamber is provided with a plurality of tangential air inlet guide rings (48) and air guide strips (43), and an air inlet is connected to the first air inlet pipe (26).
3. The ultra low nox combustion device of claim 2, wherein: the bottom plate of the combustion chamber (42) is provided with a balance disc (41) which is provided with an air inlet hole on the side wall and an upward air outlet hole in the middle, an air guide disc (47) is arranged on the air outlet hole, and the air guide disc (47) is provided with an air inlet in the middle of the bottom and an air outlet on the side surface; the air outlet pipe of the fan is divided into two branches, the other second air inlet pipe (27) is connected with the air inlet hole of the equalizing disc (41), and air is exhausted from the side face of the air guide disc (47) in the middle of the combustion chamber (42).
4. The ultra low nox combustion device of claim 3, wherein: the structure of the air guide disc (47) is as follows: the bottom surface is provided with an air inlet hole which is butted with the air inlet hole of the equalizing disc (41), and the side surface is provided with a plurality of air outlets.
5. The ultra low nox combustion device of claim 1, wherein: the water heater is characterized in that a first water tank water adding control electromagnetic valve (15) is arranged on the first water inlet pipe (14), a hot water or steam output pipe (18) is provided with a hot water and steam control electromagnetic valve (17), a pipeline is arranged between the first water inlet pipe (14) and the hot water or steam output pipe (18) for communication, and a first water tank circulating water control electromagnetic valve (16) is arranged on the pipeline.
6. The ultra low nox combustion device of claim 1, wherein: a water tank water level controller (19), a steam high-level controller (23) and a steam low-level controller (24) are arranged in the first water tank (9).
7. The ultra low nox combustion device of claim 1, wherein: and a combustion device heat insulation plate (6) is arranged between the combustor (3) and the heat insulation cylinder (20).
8. The ultra low nox combustion device of claim 1, wherein: the first water tank (9) is arranged on the rack (2), a high-voltage power supply inlet (29) and a high-low voltage control cabinet (30) are arranged on the rack, support legs (8) are arranged at the bottom of the rack, and an outlet of a hot water-steam outlet pipe of the second water tank is a steam and hot water outlet (31).
9. The ultra low nox combustion device of claim 1, wherein: the outer surface of the outer shell of the first water tank (9) is provided with a heat insulation plate (10), the bottom of the second water tank (21) is fixedly provided with a support (22), the support (22) of the second water tank (21) is supported outside a combustion chamber (42) of a combustor (3), and the combustor (3) is supported on a top plate of a machine frame (2).
10. The ultra low nox combustion device of claim 1, wherein: a heat exchanger is arranged in a water channel of the second water tank (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921175444.3U CN211261244U (en) | 2019-07-23 | 2019-07-23 | Ultralow nitrogen oxide combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921175444.3U CN211261244U (en) | 2019-07-23 | 2019-07-23 | Ultralow nitrogen oxide combustion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211261244U true CN211261244U (en) | 2020-08-14 |
Family
ID=71989512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921175444.3U Expired - Fee Related CN211261244U (en) | 2019-07-23 | 2019-07-23 | Ultralow nitrogen oxide combustion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211261244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553390A (en) * | 2019-07-23 | 2019-12-10 | 曌能科技(澳门)有限公司 | Ultralow nitrogen oxide combustion apparatus |
-
2019
- 2019-07-23 CN CN201921175444.3U patent/CN211261244U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553390A (en) * | 2019-07-23 | 2019-12-10 | 曌能科技(澳门)有限公司 | Ultralow nitrogen oxide combustion apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102788367B (en) | Mild combustor of gas turbine and implement method | |
| CN211261244U (en) | Ultralow nitrogen oxide combustion apparatus | |
| CN109307263B (en) | Low-nitrogen combustor | |
| CN102519037B (en) | Plasma oil-free ignition combustor | |
| CN114574646B (en) | Multi-rotational-flow column-flow low-nitrogen top-combustion type burner for hot blast stove | |
| CN206929990U (en) | A kind of Fin-tube Condenser | |
| CN111854156A (en) | Wall-mounted small-sized direct-current boiler using methanol fuel | |
| CN110553390A (en) | Ultralow nitrogen oxide combustion apparatus | |
| CN212720280U (en) | Civil methanol boiler | |
| CN103335310B (en) | Immersed combustor | |
| CN113494708A (en) | Modular gas burner and operation method thereof | |
| CN206771734U (en) | A kind of energy-saving high-efficient gas boiler | |
| CN206191637U (en) | Glowing room for stirling | |
| CN111671126A (en) | Directly-heated tobacco leaf curing barn using methanol fuel | |
| CN111520712A (en) | Ultrasonic atomization combustion system and method suitable for pyrolysis oil | |
| CN111854152A (en) | Methanol fuel straight-flow hot water boiler | |
| CN212430839U (en) | Water-cooling flue gas inner loop ultralow nitrogen boiler body device | |
| CN212805616U (en) | Cyclone burner using high-temperature raw gas | |
| CN214275703U (en) | Direct-flow burner using high-temperature raw gas | |
| CN102537960B (en) | Commercial high-power efficient environment-friendly flameless infrared kitchen core | |
| CN212345272U (en) | Directly-heated tobacco leaf curing barn using methanol fuel | |
| CN213040306U (en) | Full-automatic natural gas/fuel heating integral gasifier | |
| CN113883517A (en) | Natural air intake type low-nitrogen combustor | |
| CN209877355U (en) | Intelligent temperature control type heating furnace | |
| CN109945192B (en) | High-calorific-value fuel concentric jet air single-heat-storage burner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200814 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |