CN206036980U - Low -nitrogen combustion's steam boiler - Google Patents
Low -nitrogen combustion's steam boiler Download PDFInfo
- Publication number
- CN206036980U CN206036980U CN201621007598.8U CN201621007598U CN206036980U CN 206036980 U CN206036980 U CN 206036980U CN 201621007598 U CN201621007598 U CN 201621007598U CN 206036980 U CN206036980 U CN 206036980U
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- Prior art keywords
- water
- boiler
- water cooling
- steam boiler
- cooling tube
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- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The utility model discloses a low -nitrogen combustion's steam boiler has solved the technical problem that steam boiler is bulky among the prior art, the structure is complicated, the utility model discloses a low -nitrogen combustion's steam boiler, including full premix combustor, furnace, first boiler chamber and second boiler chamber, furnace is located between first boiler chamber and the second boiler chamber, the full premix combustor is installed furnace's one end, furnace's the other end is equipped with and is used for the chimney of discharging fume, the last water -cooling wall that still is equipped with of furnace, first boiler chamber is passed through the water -cooling wall with second boiler chamber intercommunication, the water -cooling wall includes a plurality of be used for the reducing first water -cooled tube of flame temperature, a plurality of second water -cooled tube and a plurality of third water -cooled tubes that are used for carrying on heat convection that are used for carrying on radiation heat transfer.
Description
【Technical field】
The utility model is related to a kind of steam boiler of low nitrogen burning.
【Background technology】
Nitride is one of major pollutants of air at present, and is contained in the flue gas discharged by boiler of the prior art
Substantial amounts of nitride, the nitride that these are discharged in air can cause severe contamination to environment, give people class existence and bring threat.
【Utility model content】
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art and provide a kind of low nitrogen burning
Steam boiler, the characteristics of with simple structure.
For solving above-mentioned technical problem, the utility model is adopted the following technical scheme that：
A kind of steam boiler of low nitrogen burning, including all-premixing burner, burner hearth, the first boiler chamber and the second boiler chamber,
The burner hearth is located between the first boiler chamber and the second boiler chamber, and the all-premixing burner is arranged on the one of the burner hearth
End, the other end of the burner hearth are provided with the chimney for smoke evacuation, are additionally provided with water-cooling wall on the burner hearth, and the first boiler chamber leads to
Cross the water-cooling wall to connect with the second boiler chamber, the water-cooling wall includes multiple the first water-cooleds for reducing flame temperature
Pipe, multiple the second water cooling tubes and multiple the 3rd water cooling tubes for carrying out heat convection for carrying out radiation heat transfer.
Further, first water cooling tube is arranged on the hearth outer wall, and first water cooling tube is arranged on and leans on
The position of the jet of the nearly all-premixing burner.
Further, second water cooling tube is arranged on the outer wall of the burner hearth, and second water cooling tube is located at
Between first water cooling tube and the 3rd water cooling tube.
Further, the burner hearth is equipped with the 3rd water cooling tube on the outboard sidewalls of described chimney one end.
Further, the steam boiler includes the first flat head tube sheet and the first ball sealing head flange, the first flat envelope
Head tube plate and the first ball sealing head flange connect to form the first boiler chamber.
Further, the steam boiler includes the second flat head tube sheet and the second ball sealing head flange, the second flat envelope
Head tube plate and the second ball sealing head flange connect to form the second boiler chamber.
The beneficial effects of the utility model：
The steam boiler of the low nitrogen burning in the utility model, including all-premixing burner, burner hearth, the first boiler chamber and
Two boiler chambers, burner hearth are located between the first boiler chamber and the second boiler chamber, and all-premixing burner is arranged on one end of burner hearth, burner hearth
The other end be provided with the chimney for smoke evacuation, be additionally provided with water-cooling wall on burner hearth, the first boiler chamber passes through water-cooling wall and the second boiler
Chamber connects, water-cooling wall include multiple the first water cooling tubes for reducing flame temperature, it is multiple for carrying out radiation heat transfer second
Water cooling tube and multiple the 3rd water cooling tubes for carrying out heat convection.Compared with prior art, due to the utility model in
One water cooling tube can effectively reduce the temperature of flame, so as to reduce the temperature of reaction during fuel combustion, reach and cannot meet nitridation
The formation condition of thing, thereby reduces the nitride produced during fuel combustion, reduces the content of nitride in flue gas, effectively protects
Natural environment is protected.Additionally, steam boiler of the present utility model uses return structures, that is, the flue gas Jing burner hearths for producing are straight
Connect and discharged by chimney, due to the combustion flame generated by all-premixing burner it is shorter, therefore the second water cooling tube in this process
The exhaust temperature of flue gas can be effectively reduced with the 3rd water cooling tube by heat exchange, compared with steam boiler of the prior art, this
Steam boiler in utility model eliminates back the structures such as smoke-box, front smoke box and smoke pipe, and structure is simpler, substantially reduces power life
Difficulty and technique is produced, manufacturing cost is effectively reduced, while overall volume also reduces, is conducive to transporting and installs.
These features of the present utility model and advantage will be detailed in following specific embodiment, accompanying drawing exposure.
【Description of the drawings】
Below in conjunction with the accompanying drawings the utility model is described further：
Fig. 1 is the structural representation of the steam boiler of low nitrogen burning in the utility model preferred embodiment.
【Specific embodiment】
The technical scheme of the utility model embodiment is explained with reference to the accompanying drawing of the utility model embodiment and
Illustrate, but following embodiments are only preferred embodiment of the present utility model, and it is not all.Based on the enforcement in embodiment
Example, those skilled in the art's obtained other embodiments on the premise of creative work is not made belong to this practicality new
The protection domain of type.
As shown in figure 1, the steam boiler of the low nitrogen burning in the utility model preferred embodiment includes all-premixing burner
1st, burner hearth 2, the first boiler chamber 4 and the second boiler chamber 5, burner hearth 2 are located between the first boiler chamber 4 and the second boiler chamber 5, complete to premix
Burner 1 is arranged on the left end of burner hearth 2, and the right-hand member of burner hearth 2 is provided with the chimney 21 for smoke evacuation.Steam boiler includes the first flat envelope
Head tube plate 41 and the first ball sealing head flange 42, the first flat head tube sheet 41 are provided with liquid level gauge 410,41 He of the first flat head tube sheet
The connection of first ball sealing head flange 42 forms the first boiler chamber 4, and cooling water is passed through in the first boiler chamber 4.Steam boiler includes second
Flat head tube sheet 51 and the second ball sealing head flange 52, the second flat head tube sheet 51 and the connection of the second ball sealing head flange 52 form second
Boiler chamber 5, can solve closed weld in prior art using flat head tube sheet and the connection of ball sealing head flange in the present embodiment
Technical difficulty, greatly reduces the workload of nondestructive inspection, improves working environment, and is conducive to the later stage to adopt automatic welding.
Water-cooling wall 3 is additionally provided with burner hearth 2, and the two ends of water-cooling wall 3 are connected with the first boiler chamber 4 and the second boiler chamber 5 respectively,
Water-cooling wall 3 is made up of side by side multiple water cooling tubes, and to be separately mounted to the first flat head tube sheet 41 and second flat at the two ends of water cooling tube
On end socket tube sheet 51, small pump 6 is input into cooling water in the first boiler chamber 4, and subsequent cooling water absorbs heat laggard in flowing into water-cooling wall 3
Enter in the second boiler chamber 5, the water evaporation in the second boiler chamber 5 is entered in the first boiler chamber 4 into water vapour, and part water vapour is by steaming
Steam ports 420 is discharged.
Water-cooling wall 3 in the present embodiment includes multiple the first water cooling tubes 31 for reducing flame temperature, multiple for entering
Second water cooling tube 32 of row radiation heat transfer and multiple the 3rd water cooling tubes 33 for carrying out heat convection, and the second water cooling tube 32
In between the first water cooling tube 31 and the 3rd water cooling tube 33.Multiple first water cooling tubes 31 are arranged on the outer wall of burner hearth 2, and first
Water cooling tube 31 is positioned close to the position of the jet of all-premixing burner 1, is specifically located at the root of flame 10, to reduce fire
The temperature of flame 10, so as to reduce the temperature of reaction during fuel combustion, reaches the formation condition that cannot meet nitride, thus subtracts
Lack the nitride produced during fuel combustion, reduce the content of nitride in flue gas, effective protection natural environment.Multiple
Two water cooling tubes 32 are disposed in parallel at the position of 2 front end of flame, and the heat major part that flame is produced is by way of radiation heat transfer
Absorbed by the water in the second water cooling tube 32, improve heat exchange efficiency；Multiple 3rd water cooling tubes 33 are disposed in parallel in the right-hand member of burner hearth 2
Outboard sidewalls on, i.e. burner hearth 2 near one end of chimney 21, now side of the heat in burner hearth 2 in flue gas by heat convection
Formula is further absorbed by the water in the 3rd water cooling tube 33, further reduces the exhaust temperature of flue gas with this.
When steam boiler works, during the cooling water in the first boiler chamber 4 flows into water-cooling wall 3 and after intensification of absorbing heat, second is flowed into
In boiler chamber 5, water vapour is formed after the heat absorption evaporation of water in the second boiler chamber 5 and risen, to be flowed into the from each water cooling tube
In one boiler chamber 4, as the coolant-temperature gage of 5 left end of the second boiler chamber is higher than the water temperature of right-hand member, therefore the water density of left end is less than the right side
End water density and formation density contrast, most of water vapor flow into first pot from first water cooling tube 31 and the second water cooling tube 32 of left end
In furnace chamber 4, circulating for water is formed with this.
Steam boiler of the present utility model adopts return structures, that is, the flue gas Jing burner hearths 2 for producing are directly by 21 row of chimney
Go out, due to the length that all-premixing burner 1 produces flame 10 it is shorter, therefore the second water cooling tube 32 and the 3rd water in this process
Cold pipe 33 can effectively reduce the exhaust temperature of flue gas by heat exchange, and compared with steam boiler of the prior art, this practicality is new
Steam boiler in type eliminates back the structures such as smoke-box, front smoke box and smoke pipe, and structure is simpler, greatly reduces production difficulty
And technique, manufacturing cost is effectively reduced, while overall volume also reduces, is conducive to transporting and is installed；Finally, in the present embodiment
Steam boiler water capacity it is less, shorten starting time, being capable of effective energy-conservation.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, it is familiar with the those skilled in the art and should be understood that the utility model includes but is not limited to accompanying drawing and specific embodiment party above
Content described in formula.Any modification without departing from function and structure principle of the present utility model is intended to be included in claims
Scope in.
Claims (6)
1. a kind of steam boiler of low nitrogen burning, it is characterised in that including all-premixing burner, burner hearth, the first boiler chamber and
Two boiler chambers, the burner hearth are located between the first boiler chamber and the second boiler chamber, and the all-premixing burner is arranged on institute
State one end of burner hearth, the other end of the burner hearth is provided with the chimney for smoke evacuation, on the burner hearth, be additionally provided with water-cooling wall, described the
One boiler chamber is connected with the second boiler chamber by the water-cooling wall, and the water-cooling wall includes for reducing flame temperature
One water cooling tube, the second water cooling tube for carrying out radiation heat transfer and the 3rd water cooling tube for carrying out heat convection.
2. the steam boiler of low nitrogen burning according to claim 1, it is characterised in that first water cooling tube is arranged on institute
State on hearth outer wall, and first water cooling tube is positioned close to the position of the jet of the all-premixing burner.
3. the steam boiler of low nitrogen burning according to claim 2, it is characterised in that second water cooling tube is arranged on institute
State on the outer wall of burner hearth, and second water cooling tube is located between first water cooling tube and the 3rd water cooling tube.
4. the steam boiler of low nitrogen burning according to claim 3, it is characterised in that the burner hearth is near the chimney one
The 3rd water cooling tube is equipped with the outboard sidewalls at end.
5. the steam boiler of low nitrogen burning according to claim 1, it is characterised in that the steam boiler includes that first is flat
End socket tube sheet and the first ball sealing head flange, the first flat head tube sheet and the first ball sealing head flange connect to form described first pot
Furnace chamber.
6. the steam boiler of low nitrogen burning according to claim 1, it is characterised in that the steam boiler includes that second is flat
End socket tube sheet and the second ball sealing head flange, the second flat head tube sheet and the second ball sealing head flange connect to form described second pot
Furnace chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621007598.8U CN206036980U (en) | 2016-08-31 | 2016-08-31 | Low -nitrogen combustion's steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621007598.8U CN206036980U (en) | 2016-08-31 | 2016-08-31 | Low -nitrogen combustion's steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206036980U true CN206036980U (en) | 2017-03-22 |
Family
ID=58299746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621007598.8U Active CN206036980U (en) | 2016-08-31 | 2016-08-31 | Low -nitrogen combustion's steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206036980U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420869A (en) * | 2017-08-29 | 2017-12-01 | 力聚热力设备科技有限公司 | A kind of water cooling premixes steam generator |
| CN109578966A (en) * | 2018-12-04 | 2019-04-05 | 杭州联赫节能环保技术有限公司 | A kind of heat pipe evaporator |
| CN110425511A (en) * | 2019-08-21 | 2019-11-08 | 浙江力聚热水机有限公司 | Ultralow nitrogen gas-steam boiler |
| WO2021031435A1 (en) * | 2019-08-21 | 2021-02-25 | 浙江力聚热水机有限公司 | Ultra-low nitrogen gas steam boiler |
-
2016
- 2016-08-31 CN CN201621007598.8U patent/CN206036980U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420869A (en) * | 2017-08-29 | 2017-12-01 | 力聚热力设备科技有限公司 | A kind of water cooling premixes steam generator |
| CN109578966A (en) * | 2018-12-04 | 2019-04-05 | 杭州联赫节能环保技术有限公司 | A kind of heat pipe evaporator |
| CN110425511A (en) * | 2019-08-21 | 2019-11-08 | 浙江力聚热水机有限公司 | Ultralow nitrogen gas-steam boiler |
| WO2021031435A1 (en) * | 2019-08-21 | 2021-02-25 | 浙江力聚热水机有限公司 | Ultra-low nitrogen gas steam boiler |
| CN110425511B (en) * | 2019-08-21 | 2024-05-28 | 浙江力聚热能装备股份有限公司 | Ultralow nitrogen gas steam boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 313023 Zhejiang Liju water heater Co., Ltd., east of Jianshe North Road, shangqiang industrial functional zone, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Zhejiang Liju thermal energy equipment Co.,Ltd. Address before: 313023 Zhejiang Liju water heater Co., Ltd., east of Jianshe North Road, shangqiang industrial functional zone, Daixi Town, Wuxing District, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG UNIPOWER BOILER Co.,Ltd. |