CN108591997A - A kind of DHS corner tube types fuel-firing gas-firing steam boiler - Google Patents
A kind of DHS corner tube types fuel-firing gas-firing steam boiler Download PDFInfo
- Publication number
- CN108591997A CN108591997A CN201810544636.0A CN201810544636A CN108591997A CN 108591997 A CN108591997 A CN 108591997A CN 201810544636 A CN201810544636 A CN 201810544636A CN 108591997 A CN108591997 A CN 108591997A
- Authority
- CN
- China
- Prior art keywords
- burner hearth
- rear wall
- firing
- temperature superheater
- dhs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/36—Water and air preheating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
- F22G7/12—Steam superheaters characterised by location, arrangement, or disposition in flues
Abstract
The invention discloses a kind of DHS corner tube types fuel-firing gas-firing steam boilers, including burner, drum, burner hearth, left and right sidewall, channel rear wall, low temperature superheater, high temperature superheater, connection flue, energy-saving appliance, condenser, air preheater, preceding down-comer, rear down-comer and left and right dry pipe, the cigarettes speed channels such as the burner hearth includes burner hearth antetheca and burner hearth rear wall, and the burner hearth rear wall, channel rear wall and left and right sidewall surround；The low temperature superheater and high temperature superheater are arranged one on the other in the equal cigarettes speed channel, and the low temperature superheater is connected by attemperator with the high temperature superheater；The connection flue is connected to the equal cigarettes speed channel；The energy-saving appliance, condenser and air preheater are successively set on from top to bottom in the connection flue.The DHS corner tube type fuel-firing gas-firing steam boilers of the present invention have many advantages, such as low water cycle reliable, thermal efficiency height, steel consumption, modularization assembling, compact-sized, easy to maintenance.
Description
Technical field
The present invention relates to a kind of DHS corner tube types fuel-firing gas-firing steam boilers, belong to Thermal Power Engineering technical field.
Background technology
In recent years, with the continuous quickening of process of industrialization, the air environmental pollution problem in China is increasingly severe, as changing
The important measure of kind China's air quality, " coal changes gas " is unquestionable to the effect for improving China's atmospheric environment, and as the energy
The rich and influential family of consumption then seems particularly critical for the gas replacing coal project of boiler product.
Currently, oil-burning gas-fired boiler product more mature on domestic market mainly has three kinds of forms of WNS, SZS, ∏ type,
And corner tube boiler is used as the country more mature and widely used Industrial Boiler product, fuel is with coal and biomass
It is main.In order to meet demand of the client to high power capacity, big parameter boiler under the new energy, environmental protection policy, in existing corner tube type fire coal
In boiler foundation, develops one kind and not only meeting national energy-saving environmental protection policy, but also can effectively reduce the novel combustion of operation cost of enterprises
Oily gas fired-boiler, it is imperative.
Invention content
The purpose of the present invention is overcoming the deficiencies of existing technologies, a kind of DHS corner tube types fuel-firing gas-firing steam boiler is provided, is had
Have the advantages that water cycle is reliable, the thermal efficiency is high, steel consumption is low, modularization assembling, compact-sized, easy to maintenance.
Realizing the technical solution of above-mentioned purpose is：A kind of DHS corner tube types fuel-firing gas-firing steam boiler, including burner, vapour
Packet, burner hearth, left and right sidewall, channel rear wall, low temperature superheater, high temperature superheater, connection flue, energy-saving appliance, condenser, air are pre-
Hot device, preceding down-comer, rear down-comer and left and right dry pipe, wherein：
The burner is arranged on the top of the burner hearth；
The drum is arranged in the front of the burner hearth；
The burner hearth includes burner hearth antetheca and burner hearth rear wall, and the burner hearth antetheca and burner hearth rear wall are oppositely arranged, and described
Burner hearth rear wall is in setting inclined vertically；
The channel rear wall is arranged at the rear of the burner hearth rear wall, and the left and right sidewall is blocked correspondingly described
Left and right end opening between burner hearth antetheca and burner hearth rear wall, the burner hearth rear wall, channel rear wall and left and right sidewall such as surround at the cigarettes speed
Channel；
The low temperature superheater and high temperature superheater are arranged one on the other in the equal cigarettes speed channel, the low temperature mistake
Hot device is connected by attemperator with the high temperature superheater；
The connection flue is connected with the top of the channel rear wall, and the connection flue waits cigarettes speed channel to connect with described
It is logical；
The energy-saving appliance, condenser and air preheater are successively set on from top to bottom in the connection flue；
The energy-saving appliance is connected by connecting tube with the hydrospace of the drum；
The preceding down-comer is arranged in the front of the burner hearth, and the rear down-comer is arranged after the channel rear wall
Side, and the preceding down-comer and rear down-comer are connected to the hydrospace of the drum respectively；
It is respectively arranged with header in the left and right sidewall；
The left and right dry pipe correspondingly be located at the left and right sidewall top, and the left and right dry pipe respectively with
The air space of the drum is connected to.
Above-mentioned a kind of DHS corner tube types fuel-firing gas-firing steam boiler, wherein the burner hearth antetheca is vertically arranged.
Above-mentioned a kind of DHS corner tube types fuel-firing gas-firing steam boiler, wherein water cooling is respectively adopted in each side wall of the burner hearth
Membrane wall.
Above-mentioned a kind of DHS corner tube types fuel-firing gas-firing steam boiler, wherein water cooled membrane is respectively adopted in the left and right sidewall
Wall, the left and right sidewall are respectively perpendicular setting.
Above-mentioned a kind of DHS corner tube types fuel-firing gas-firing steam boiler, wherein the inner cavity of the burner hearth passes through crust block pipe and institute
State the connection of equal cigarettes speed channel.
The DHS corner tube type fuel-firing gas-firing steam boilers of the present invention, there is water to recycle, and reliable, the thermal efficiency is high, steel consumption is low, mould
The advantages that blockization assembles, is compact-sized, easy to maintenance, can meet under new energy conservation and environmental protection policy, client is to high power capacity, big parameter
The demand of boiler product, rated capacity can reach 300t/h, even higher.
Description of the drawings
Fig. 1 is the structure chart of the DHS corner tube type fuel-firing gas-firing steam boilers of the present invention；
Fig. 2 is the front view of the DHS corner tube type fuel-firing gas-firing steam boilers of the present invention.
Specific implementation mode
It is right below in conjunction with the accompanying drawings in order to make those skilled in the art be better understood when technical scheme of the present invention
Its specific implementation mode is described in detail：
It please refers to Fig.1 and Fig. 2, highly preferred embodiment of the present invention, a kind of DHS corner tube types fuel-firing gas-firing steam boiler, including
Burner 1, drum 2, burner hearth 40, left and right sidewall 3, channel rear wall 6, low temperature superheater 7, high temperature superheater 9, connection flue 13,
Energy-saving appliance 10, condenser 11, air preheater 12, preceding down-comer 14, rear down-comer 15 and left and right dry pipe 16.
Burner 1 is arranged on the top of burner hearth 40；Drum 2 is arranged in the front of burner hearth 40；Burner hearth 40 includes burner hearth antetheca 4
With burner hearth rear wall 5, burner hearth antetheca 4 and burner hearth rear wall 5 are oppositely arranged, and burner hearth antetheca 4 is vertically arranged, and burner hearth rear wall 5 is vertical
Direction is obliquely installed；Channel rear wall 6 is arranged at the rear of burner hearth rear wall 5, and left and right sidewall 3 is blocked correspondingly in burner hearth antetheca
Left and right end opening between 4 and burner hearth rear wall 5, burner hearth rear wall 5, channel rear wall 6 and left and right sidewall 3 such as surround at the cigarettes speed channel 50；
Low temperature superheater 7 and high temperature superheater 9 are arranged one on the other in equal cigarettes speed channel 50, and low temperature superheater 7 passes through attemperator 8
It is connected with high temperature superheater 9, low temperature superheater 7 is located at the outside for waiting cigarettes speed channel 50.
The inner cavity of burner hearth 40 is connected to by crust block pipe with equal cigarettes speed channel 50, and crust block pipe is arranged under the inner cavity of burner hearth 40
Portion.
Connection flue 13 is connected with the top of channel rear wall 6, and connects flue 13 and be connected to cigarettes speed channel 50 is waited；Energy-saving appliance
10, condenser 11 and air preheater 12 are successively set on from top to bottom in connection flue 13.
Energy-saving appliance 10 is connected by connecting tube with the hydrospace of drum 2.Preceding down-comer 14 is arranged in the front of burner hearth 40, after
Down-comer 15 is arranged at the rear of channel rear wall 6, and preceding down-comer 14 and rear down-comer 15 connect with the hydrospace of drum 2 respectively
It is logical.
It is respectively arranged with header in left and right sidewall 3；Left and right dry pipe 16 is located at the top of left and right sidewall 3 correspondingly,
And left and right dry pipe 16 is connected to the air space of drum 2 respectively, the air space of drum 2 passes through jet chimney and low temperature superheater 7
It is connected.
Water cooled membrane wall is respectively adopted in each side wall of burner hearth 40.
Water cooled membrane wall is respectively adopted in left and right sidewall 3, and left and right sidewall 3 is respectively perpendicular setting.
The DHS corner tube type fuel-firing gas-firing steam boilers of the present invention, preceding down-comer 14 and rear down-comer 15 are the water not being heated
Guard system is made of heated water pipe system left and right sidewall 3, burner hearth antetheca 4, burner hearth rear wall 5 and channel rear wall 6.
The present invention DHS corner tube type fuel-firing gas-firing steam boilers, boiler expansion direction be freely upwards, backward and to the left.
The DHS corner tube type fuel-firing gas-firing steam boilers of the present invention, cigarette wind flow principle are that single channel flows, fuel and through sky
The air that air preheater 12 heats carries out mixing after-combustion, generates thermal-flame in burner hearth 40 and flue gas, high-temperature flue gas pass through
The cigarettes speed channel 50 such as enter after crust block pipe, with high temperature superheater 9, the low temperature superheater 7 and logical being arranged in equal cigarettes speed channel 50
The boiler tube bundle of road rear wall 6 carries out heat convection, then sequentially enters energy-saving appliance 10, condenser 11, sky by connecting flue 13
Air preheater 12, is most discharged into air through chimney afterwards.
The DHS corner tube type fuel-firing gas-firing steam boilers of the present invention, steam/water circulating principle are：Water supply is pressurizeed laggard through feed pump
Enter energy-saving appliance 10, the hydrospace of drum 2 entered by connecting tube after the heating of energy-saving appliance 10, into drum 2 water by not by
Preceding down-comer 14, the rear down-comer 15 of heat (by left and right sidewall 3, burner hearth antetheca 4, burner hearth rear wall 5 and lead to heated water pipe system
Road rear wall 6 forms) Natural Circulation is formed, for the water supply of down-comer 15 after ensureing, the arrangement of 3 upper collecting chamber of left and right sidewall is less than pot
The lowest water level of stove normal operation, the vapour that the steam generated after water pipe system heats enters drum 2 through left and right dry pipe 16 are empty
Between, low temperature superheater 7, attemperator 8 and high temperature superheater 9 then are sequentially entered through jet chimney, finally via main-steam outlet
Header supplies user.
The DHS corner tube type fuel-firing gas-firing steam boilers of the present invention, have the characteristics that：
(1) burner 1 uses overhead type, starts easy to maintenance；
(2) the angled inclination arrangement in vertical direction of burner hearth rear wall 5, burner hearth rear wall 5 and left and right sidewall 3 and channel
The cigarettes speed channels, more conducively heat convection such as the formation of rear wall 6, improve boiler efficiency；
(3) left and right sidewall 3 uses vertical structure, water cooled membrane wall to be not necessarily to bend pipe, reduces processing technology, and saving is manufactured into
This；
(4) arrangement of 3 upper collecting chamber of left and right sidewall can fully ensure that rear down-comer less than the lowest water level of boiler normal operation
Water supply, make water cycle it is more reliable；
(5) boiler smoke system arranges that compact-sized, steel consumption is low, and floor space is small using anti-N fonts；
(6) burner hearth is made of fin panel casing, good seal performance, it is ensured that boiler micro-positive pressure low NOx combustion；
(7) water pipe system can carry out modularized design according to user demand, be readily transported, reduce on-site installation work amount,
Shorten construction period.
The DHS corner tube type fuel-firing gas-firing steam boilers of the present invention, for different pressures grade (1.25MPa~10MPa), no
Same steam parameter (35t/h~300t/h), can form tandem product, meet the needs of different user；Its rationally compact knot
Structure designs, and is more suitable for high power capacity, big parameter boiler, can effectively reduce manufacture and the operating cost of enterprise, is brought well for user
Economic benefit.
In conclusion the DHS corner tube type fuel-firing gas-firing steam boilers of the present invention, have reliable water cycle, thermal efficiency height, steel
Consumption is low, modularization assembling, it is compact-sized, easy to maintenance the advantages that.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as in the spirit of the present invention, the change to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (5)
1. a kind of DHS corner tube types fuel-firing gas-firing steam boiler, which is characterized in that including burner, drum, burner hearth, left and right sidewall,
Channel rear wall, low temperature superheater, high temperature superheater, connection flue, energy-saving appliance, condenser, air preheater, preceding down-comer, after
Down-comer and left and right dry pipe, wherein：
The burner is arranged on the top of the burner hearth；
The drum is arranged in the front of the burner hearth；
The burner hearth includes burner hearth antetheca and burner hearth rear wall, and the burner hearth antetheca and burner hearth rear wall are oppositely arranged, and the burner hearth
Rear wall is in setting inclined vertically；
The channel rear wall is arranged at the rear of the burner hearth rear wall, and the left and right sidewall is blocked correspondingly in the burner hearth
Left and right end opening between antetheca and burner hearth rear wall, the burner hearth rear wall, channel rear wall and left and right sidewall such as surround at the cigarettes speed channel；
The low temperature superheater and high temperature superheater are arranged one on the other in the equal cigarettes speed channel, the low temperature superheater
It is connected with the high temperature superheater by attemperator；
The connection flue is connected with the top of the channel rear wall, and the connection flue is connected to the equal cigarettes speed channel；
The energy-saving appliance, condenser and air preheater are successively set on from top to bottom in the connection flue；
The energy-saving appliance is connected by connecting tube with the hydrospace of the drum；
The preceding down-comer is arranged in the front of the burner hearth, and the rear down-comer is arranged at the rear of the channel rear wall, and
The preceding down-comer and rear down-comer are connected to the hydrospace of the drum respectively；
It is respectively arranged with header in the left and right sidewall；
The left and right dry pipe correspondingly be located at the left and right sidewall top, and the left and right dry pipe respectively with it is described
The air space of drum is connected to.
2. a kind of DHS corner tube types fuel-firing gas-firing steam boiler according to claim 1, which is characterized in that before the burner hearth
Wall is vertically arranged.
3. a kind of DHS corner tube types fuel-firing gas-firing steam boiler according to claim 1 or 2, which is characterized in that the burner hearth
Each side wall water cooled membrane wall is respectively adopted.
4. a kind of DHS corner tube types fuel-firing gas-firing steam boiler according to claim 1, which is characterized in that the left and right sides
Water cooled membrane wall is respectively adopted in wall, and the left and right sidewall is respectively perpendicular setting.
5. a kind of DHS corner tube types fuel-firing gas-firing steam boiler according to claim 1, which is characterized in that the burner hearth
Inner cavity is connected to by crust block pipe with the equal cigarettes speed channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810544636.0A CN108591997A (en) | 2018-05-31 | 2018-05-31 | A kind of DHS corner tube types fuel-firing gas-firing steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810544636.0A CN108591997A (en) | 2018-05-31 | 2018-05-31 | A kind of DHS corner tube types fuel-firing gas-firing steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108591997A true CN108591997A (en) | 2018-09-28 |
Family
ID=63630521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810544636.0A Pending CN108591997A (en) | 2018-05-31 | 2018-05-31 | A kind of DHS corner tube types fuel-firing gas-firing steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108591997A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062748A (en) * | 2012-12-24 | 2013-04-24 | 杭州燃油锅炉有限公司 | Vertical type coal dust corner tube boiler |
| CN103743095A (en) * | 2014-01-24 | 2014-04-23 | 上海工业锅炉研究所 | Self-supporting single-channel fuel oil/gas corner tube type hot water boiler |
| CN104359099A (en) * | 2014-10-09 | 2015-02-18 | 杭州燃油锅炉有限公司 | Three-return-stroke powder steam boiler |
| CN204165022U (en) * | 2014-10-24 | 2015-02-18 | 郭强 | A kind of corner tube type fuel-firing gas-firing steam boiler |
| CN204240318U (en) * | 2014-10-09 | 2015-04-01 | 杭州燃油锅炉有限公司 | A kind of three backhaul powder steam boilers |
| CN204285421U (en) * | 2014-11-17 | 2015-04-22 | 郑州锅炉股份有限公司 | External separate type assembling oil-burning gas-fired boiler |
| CN204404144U (en) * | 2014-12-11 | 2015-06-17 | 上海新业锅炉高科技有限公司 | Combustion hydrogen corner tube type steam boiler |
| CN208365509U (en) * | 2018-05-31 | 2019-01-11 | 上海工业锅炉研究所有限公司 | A kind of DHS corner tube type fuel-firing gas-firing steam boiler |
-
2018
- 2018-05-31 CN CN201810544636.0A patent/CN108591997A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062748A (en) * | 2012-12-24 | 2013-04-24 | 杭州燃油锅炉有限公司 | Vertical type coal dust corner tube boiler |
| CN103743095A (en) * | 2014-01-24 | 2014-04-23 | 上海工业锅炉研究所 | Self-supporting single-channel fuel oil/gas corner tube type hot water boiler |
| CN104359099A (en) * | 2014-10-09 | 2015-02-18 | 杭州燃油锅炉有限公司 | Three-return-stroke powder steam boiler |
| CN204240318U (en) * | 2014-10-09 | 2015-04-01 | 杭州燃油锅炉有限公司 | A kind of three backhaul powder steam boilers |
| CN204165022U (en) * | 2014-10-24 | 2015-02-18 | 郭强 | A kind of corner tube type fuel-firing gas-firing steam boiler |
| CN204285421U (en) * | 2014-11-17 | 2015-04-22 | 郑州锅炉股份有限公司 | External separate type assembling oil-burning gas-fired boiler |
| CN204404144U (en) * | 2014-12-11 | 2015-06-17 | 上海新业锅炉高科技有限公司 | Combustion hydrogen corner tube type steam boiler |
| CN208365509U (en) * | 2018-05-31 | 2019-01-11 | 上海工业锅炉研究所有限公司 | A kind of DHS corner tube type fuel-firing gas-firing steam boiler |
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