CN108981139A - Wall-mounted stove - Google Patents
Wall-mounted stove Download PDFInfo
- Publication number
- CN108981139A CN108981139A CN201810718725.2A CN201810718725A CN108981139A CN 108981139 A CN108981139 A CN 108981139A CN 201810718725 A CN201810718725 A CN 201810718725A CN 108981139 A CN108981139 A CN 108981139A
- Authority
- CN
- China
- Prior art keywords
- wall
- hung boiler
- combustion chamber
- return pipe
- boiler according
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 49
- 239000000779 smoke Substances 0.000 claims description 17
- 238000007689 inspection Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 18
- 239000003546 flue gas Substances 0.000 abstract description 18
- 239000007789 gas Substances 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 239000003517 fume Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 108010054147 Hemoglobins Proteins 0.000 description 1
- 102000001554 Hemoglobins Human genes 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 108010064719 Oxyhemoglobins Proteins 0.000 description 1
- 206010058824 Pulmonary necrosis Diseases 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 231100001229 severe poisoning Toxicity 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
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 invention provides a wall-mounted furnace which comprises a shell, wherein an exhaust channel and a combustion chamber are arranged in the shell, the exhaust channel is communicated with an air outlet of the combustion chamber, the wall-mounted furnace also comprises a return pipe, the first end of the return pipe is communicated with the exhaust channel, and the second end of the return pipe is communicated with an air inlet of the combustion chamber. According to the wall-mounted furnace provided by the invention, part of flue gas is guided into the combustion chamber by the return pipe, and is mixed with fresh air and then is sent into the combustion chamber for combustion, NOx existing in the flue gas is utilized to inhibit NOx newly generated in the combustion chamber, so that the content of NOx in the flue gas discharged from the wall-mounted furnace is finally reduced, the flue gas returned into the combustion chamber can reduce the excess air coefficient of combustion, and further the purposes of complete combustion and NOx reduction are achieved, and the flue gas is guided by the return pipe, so that the problem of abnormal discharge of other components in the exhaust gas caused by the disorder of the exhaust gas in the exhaust channel can be effectively prevented.
Description
Technical field
The present invention relates to the technical field of gas heater, especially a kind of wall-hung boiler.
Background technique
Main noxious material is CO, NOx etc. in gas heater smoke evacuation, CO can replace from oxyhemoglobin oxygen at
For carbonyl haemoglobin, the supply of oxygen is hampered, human body anoxia is caused, finally results in people's death.The combination of NO and hemoglobin
The power big hundred times of ratio CO are to thousands of times, and NO2 is 4~5 times big to the toxicity ratio NO of human lung, so NOx severe poisoning can be led
Cause the symptoms such as pulmonary necrosis, asphyxia.For the NOx that normal conventional furnace generates generally in 120~150mg/kwh, industry will reduce routine
Furnace NOx is by selecting low nitrogen water cooled burner to realize, cost is compared with normal burner height, and structure is complicated.
Summary of the invention
In order to solve the above-mentioned technical problem, a kind of wall-hung boiler increasing gas safe is provided.
A kind of wall-hung boiler, including shell are provided with air exhaust passage and combustion chamber, the air exhaust passage and institute in the shell
The air outlet connection of combustion chamber is stated, the wall-hung boiler further includes return pipe, the first end of the return pipe and the air exhaust passage
Connection, second end are connected to the air inlet of the combustion chamber.
The combustion chamber includes homogenizing plate and burner, the homogenizing plate be set to the burner and the air inlet it
Between, and the second end of the return pipe is set to side of the homogenizing plate far from the burner.
The burner is set to the top of the homogenizing plate, and the second end of the return pipe is set to the homogenizing plate
Lower section.
The wall-hung boiler further includes blower, the air inlet of the blower and the combustion chamber, the outlet air of the blower
Mouth is connected to the air exhaust passage.
The wall-hung boiler further includes bend pipe structure, and the bend pipe structure is set to formation part at the air outlet of the blower
The air exhaust passage, the first end of the return pipe are connected to the bend pipe structure.
The wall-hung boiler further includes coaxial smoke pipe, and the coaxial smoke pipe is disposed through on the shell, and described coaxial
The inner tube of smoke pipe is connected to form the air exhaust passage with the bend pipe structure, outer tube and the combustion chamber of the coaxial smoke pipe
Air inlet is connected to form air intake passage.
The blower is centrifugal blower.
The combustion chamber further includes igniter and inspection firearm, and the igniter and the inspection firearm are all set in the burning
On device.
Return port is provided on the air exhaust passage, the first end of the return pipe is connected to the return port.
The diameter range of the return port is 3-5mm.
The wall-hung boiler further includes blast switch, and the blast switch is set in the shell, and the return port is set
The air exhaust passage is placed in towards on the side wall of the blast switch.
Further include heat exchanger in the combustion chamber, the heat exchanger is set to the top of the burner, and with the combustion
There is the first spacing between burner.
The return pipe is hose.
Partial fume is drained in combustion chamber by wall-hung boiler provided by the invention using return pipe, and make partial fume with
It is sent into combustion chamber and burns after fresh air mixing, inhibit newly-generated in combustion chamber using NOx already existing in flue gas
NOx, and then finally reduce the content of the NOx in discharge wall-hung boiler in flue gas, and being back to the indoor flue gas of burning can
Burning excess air coefficient is reduced, and then reaches completely burned, reduces the purpose of NOx, and carry out to flue gas using return pipe
Drainage can effectively prevent the smoke evacuation disorder in air exhaust passage and cause the problem that other compositions discharge is abnormal in exhaust.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of wall-hung boiler provided by the invention；
In figure:
1, shell；2, air exhaust passage；3, combustion chamber；4, return pipe；31, homogenizing plate；32, burner；5, blower；51, curved
Pipe structure；6, coaxial smoke pipe；21, return port.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is further elaborated.It should be appreciated that described herein, the specific embodiments are only for explaining the present invention, not
For limiting the present invention.
Wall-hung boiler as shown in Figure 1, including shell 1 are provided with air exhaust passage 2 and combustion chamber 3 in the shell 1, described
Air exhaust passage 2 is connected to the air outlet of the combustion chamber 3, and the wall-hung boiler further includes return pipe 4, and the first of the return pipe 4
End is connected to the air exhaust passage 2, and second end is connected to the air inlet of the combustion chamber 3, is returned partial fume using return pipe 4
It flow in combustion chamber 3 and burns, i.e., inhibit the amount of newly generated NOx in combustion chamber 3 using the NOx in flue gas to reduce discharge
The content of NOx in wall-hung boiler in flue gas, and burning excess air coefficient can will be reduced, reach completely burned, reduces NOx
Purpose, and then improve the safety of wall-hung boiler.
The combustion chamber 3 includes homogenizing plate 31 and burner 32, and the homogenizing plate 31 is set to the burner 32 and institute
It states between air inlet, and the second end of the return pipe 4 is set to side of the homogenizing plate 31 far from the burner 32, makes
The flue gas that must be flowed back is being sent after mixing in homogenizing plate 31 with fresh air to burning in burner 32.
The burner 32 is set to the top of the homogenizing plate 31, and the second end of the return pipe 4 is set to described equal
The lower section of flowing plate 31, so that the flue gas of reflux is mixed with fresh air in the lower section of homogenizing plate 31, and will be after mixing using blower 5
Gas by burner 32 top sucking burner 32 in burn.
The wall-hung boiler further includes blower 5, and the air inlet of the blower 5 is connected to the combustion chamber 3, the blower 5
Air outlet is connected to the air exhaust passage 2, and wall-hung boiler is discharged in the flue gas after burning by the wind pressure generated using blower 5, and is allowed
Fresh air and partial reflux flue gas, which enter in combustion chamber 3, to burn.
The wall-hung boiler further includes bend pipe structure 51, and the bend pipe structure 51 is set to shape at the air outlet of the blower 5
At the part air exhaust passage 2, the first end of the return pipe 4 is connected to the bend pipe structure 51.
The wall-hung boiler further includes coaxial smoke pipe 6, and the coaxial smoke pipe 6 is disposed through on the shell 1, and described same
The inner tube of axis smoke pipe 6 is connected to form the air exhaust passage 2 with the bend pipe structure 51, the outer tube of the coaxial smoke pipe 6 with it is described
The air inlet of combustion chamber 3 is connected to form air intake passage.
The combustion chamber 3 is arranged inside shell 1, and the inner surface of the peripheral side of combustion chamber 3 and shell 1 surround it is described into
The outer tube in wind channel, coaxial smoke pipe 6 is connected to air intake passage, allows for coaxial air inlet and the outlet.
The blower 5 is centrifugal blower.
The combustion chamber 3 further includes igniter and inspection firearm, and the igniter and the inspection firearm are all set in the combustion
In burner 32, the igniter is ignition electrode, and quantity is configured according to the size of wall-hung boiler, and inspection firearm is fire testing needle, can
The combustion state of real-time detection burner 32, and according to the testing result of fire testing needle control blower 5, the working condition of combustion chamber 3.
Return port 21 is provided on the air exhaust passage 2, the first end of the return pipe 4 is connected to the return port 21.
The diameter range of the return port 21 is 3-5mm, when the size of opened return port 21 is 3-5mm, by opening back
The content curve that discharge orifice 21 reduces nitrogen oxides in effluent has a peak value, there is Slight undulations near this peak value, reduces most
Point reachable 30%, be such as applied in conventional oven, if generally conventional furnace does not take any measure, nitrogen oxide emission is big
It causes in 120~150mg/kwh.And the nitrogen oxides reduced when return port 21 and return pipe 4 is arranged is up to 35~45mg/
Kw.h has crossed this peak value, and smoke backflow is unobvious to the impact effect of nitrogen oxides, and can follow without rule.Return pipe 4 is straight
It is switched to above burner 32 gas nozzle, so that backflow flue gas is effective and combustion gas mixing, participates in new round combustion reaction
In, it is unlikely to that backflow flue gas is made to spill into entire sealing room, wastes the effecting reaction ingredient in backflow flue gas.
The wall-hung boiler further includes blast switch, and the blast switch is set in the shell 1, and the return port 21
The air exhaust passage 2 is set to towards on the side wall of the blast switch.
Further include heat exchanger in the combustion chamber 3, the heat exchanger is set to the top of the burner 32, and with it is described
There is the first spacing between burner 32, can be under the premise of guaranteeing combustion efficiency using the distance of the first spacing, increase is changed
The heat exchange efficiency of hot device.
The return pipe 4 is hose.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (13)
1. a kind of wall-hung boiler, including shell (1), the shell (1) is interior to be provided with air exhaust passage (2) and combustion chamber (3), the row
Wind channel (2) is connected to the air outlet of the combustion chamber (3), it is characterised in that: the wall-hung boiler further includes return pipe (4), institute
The first end for stating return pipe (4) is connected to the air exhaust passage (2), and second end is connected to the air inlet of the combustion chamber (3).
2. wall-hung boiler according to claim 1, it is characterised in that: the combustion chamber (3) includes homogenizing plate (31) and burning
Device (32), the homogenizing plate (31) are set between the burner (32) and the air inlet, and the of the return pipe (4)
Two ends are set to the side of the homogenizing plate (31) far from the burner (32).
3. wall-hung boiler according to claim 2, it is characterised in that: the burner (32) is set to the homogenizing plate (31)
Top, the second end of the return pipe (4) is set to the lower section of the homogenizing plate (31).
4. wall-hung boiler according to claim 1, it is characterised in that: the wall-hung boiler further includes blower (5), the blower
(5) air inlet is connected to the combustion chamber (3), and the air outlet of the blower (5) is connected to the air exhaust passage (2).
5. wall-hung boiler according to claim 4, it is characterised in that: the wall-hung boiler further includes bend pipe structure (51), described
Bend pipe structure (51) is set to the formation part air exhaust passage (2), the return pipe (4) at the air outlet of the blower (5)
First end be connected to the bend pipe structure (51).
6. wall-hung boiler according to claim 5, it is characterised in that: the wall-hung boiler further includes coaxial smoke pipe (6), described same
Axis smoke pipe (6) is disposed through on the shell (1), and the inner tube of the coaxial smoke pipe (6) and the bend pipe structure (51) are even
It is logical to be formed the air exhaust passage (2), the outer tube of the coaxial smoke pipe (6) be connected to the air inlet of the combustion chamber (3) to be formed into
Wind channel.
7. wall-hung boiler according to claim 4, it is characterised in that: the blower (5) is centrifugal blower.
8. wall-hung boiler according to claim 2, it is characterised in that: the combustion chamber (3) further include igniter and inspection firearm,
The igniter and the inspection firearm are all set on the burner (32).
9. wall-hung boiler according to claim 1, it is characterised in that: return port (21) are provided on the air exhaust passage (2),
The first end of the return pipe (4) is connected to the return port (21).
10. wall-hung boiler according to claim 9, it is characterised in that: the diameter range of the return port (21) is 3-5mm.
11. wall-hung boiler according to claim 9, it is characterised in that: the wall-hung boiler further includes blast switch, the wind pressure
Switch is set in the shell (1), and the return port (21) is set to the air exhaust passage (2) towards the blast switch
Side wall on.
12. wall-hung boiler according to claim 2, it is characterised in that: it further include heat exchanger in the combustion chamber (3), it is described
Heat exchanger is set to the top of the burner (32), and has the first spacing between the burner (32).
13. wall-hung boiler according to claim 1, it is characterised in that: the return pipe (4) is hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718725.2A CN108981139A (en) | 2018-06-29 | 2018-06-29 | Wall-mounted stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810718725.2A CN108981139A (en) | 2018-06-29 | 2018-06-29 | Wall-mounted stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108981139A true CN108981139A (en) | 2018-12-11 |
Family
ID=64536644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810718725.2A Pending CN108981139A (en) | 2018-06-29 | 2018-06-29 | Wall-mounted stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108981139A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4979508B2 (en) * | 2007-08-10 | 2012-07-18 | 東邦瓦斯株式会社 | Heat exchanger and cooking device using the same |
| CN106152479A (en) * | 2016-08-26 | 2016-11-23 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
| CN205878589U (en) * | 2016-07-01 | 2017-01-11 | 深圳市海顿热能技术有限公司 | Hanging stove with vortex device |
-
2018
- 2018-06-29 CN CN201810718725.2A patent/CN108981139A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4979508B2 (en) * | 2007-08-10 | 2012-07-18 | 東邦瓦斯株式会社 | Heat exchanger and cooking device using the same |
| CN205878589U (en) * | 2016-07-01 | 2017-01-11 | 深圳市海顿热能技术有限公司 | Hanging stove with vortex device |
| CN106152479A (en) * | 2016-08-26 | 2016-11-23 | 芜湖美的厨卫电器制造有限公司 | Gas heater |
Non-Patent Citations (1)
| Title |
|---|
| 林志宏: "《工业锅炉节能技术与管理》", 31 July 2008, 中国计量出版社 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181211 |