CN107255267A - A kind of low pressure superhigh temperature superheated steam boiler - Google Patents
A kind of low pressure superhigh temperature superheated steam boiler Download PDFInfo
- Publication number
- CN107255267A CN107255267A CN201710458734.8A CN201710458734A CN107255267A CN 107255267 A CN107255267 A CN 107255267A CN 201710458734 A CN201710458734 A CN 201710458734A CN 107255267 A CN107255267 A CN 107255267A
- Authority
- CN
- China
- Prior art keywords
- superheater
- temperature
- superhigh temperature
- superheated steam
- heater
- 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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Links
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 22
- 230000008676 import Effects 0.000 claims abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 7
- 239000000779 smoke Substances 0.000 claims description 7
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 6
- 238000002207 thermal evaporation Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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
- F22G—SUPERHEATING OF STEAM
- F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
Abstract
The invention discloses a kind of low pressure superhigh temperature superheated steam boiler, including body of heater, the body of heater is arranged on boiler foundation, the side of body of heater is provided with burner, combustion chamber in body of heater, which has, is provided with superhigh temperature superheater following current area, superhigh temperature superheater countercurrent zone, high temperature superheater, medium temperature overheater, low temperature superheater, convection bank and economizer in outlet flue, the cavity of body of heater；The convection bank and economizer connect saturated vapor import by connecting leg, and superheated steam outlet is provided between the resistance to superheater countercurrent zone of superhigh temperature and superhigh temperature superheater following current area；Superheat steam temperature is up to 800 DEG C in this low pressure superhigh temperature superheated steam boiler, employ steam flow rate and rational superheated steam flow direction in transnormal pipe, reach the minimum steam that 800 DEG C of overtemperature is obtained using superhigh temperature resistant steel, to meet the demand of special petrochemical industry and environmental improvement technique, energy-saving and emission-reduction standard of the country to boiler is met.
Description
Technical field
The present invention relates to superhigh temperature superheated steam pot technical field, specially a kind of low pressure superhigh temperature superheated steam boiler.
Background technology
At present, the unit boiler highest superheat steam temperature in domestic actual motion be 600 DEG C, and special petrochemical industry and
Environmental improvement technological requirement superheat steam temperature is up to 800 DEG C, so being all by saturated vapor and superhigh temperature mistake in actual motion
Vapours boiler is divided into two heating units, onlys demand acquisition superhigh temperature superheated steam, could not reach the requirement of national energy-saving emission reduction,
And a large amount of steel alloys for wasting expensive superhigh temperature resistant.Additionally, due to two heating units are divided into, special process is extremely not suitable with
It is required that often need to move the situation of Work places.
The content of the invention
It is an object of the invention to provide a kind of low pressure superhigh temperature superheated steam boiler, superheated steam temperature is realized on unit
Up to 800 DEG C of degree, and meets the requirement of national energy-saving emission reduction standard, the problem of to solve to be previously mentioned in above-mentioned background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of low pressure superhigh temperature superheated steam boiler, including
Body of heater, the body of heater is arranged on boiler foundation, and feed pump, softening water tank, hydrotreater and fuel oil are provided with boiler foundation
Case；The feed pump, softening water tank and hydrotreater are arranged side by side, and fuel tank is arranged on water pump, softening water tank and hydrotreater
Side；The side of the body of heater is provided with burner, and burner is interconnected with the combustion chamber in body of heater, the burning in body of heater
Room is also communicated with outlet flue, the outer wall of outlet flue insertion body of heater；Superhigh temperature superheater following current is provided with the cavity of the body of heater
Area, superhigh temperature superheater countercurrent zone, high temperature superheater, medium temperature overheater, low temperature superheater, convection bank and economizer；It is described
Convection bank and economizer connect saturated vapor import by connecting leg, and saturated vapor import is arranged on the side of low temperature superheater,
And low temperature superheater, medium temperature overheater, high temperature superheater and the resistance to superheater countercurrent zone of superhigh temperature are sequentially communicated by connecting leg；It is described
Superheated steam outlet is provided between the resistance to superheater countercurrent zone of superhigh temperature and superhigh temperature superheater following current area, superheated steam outlet is logical
Connecting leg is crossed to connect with superhigh temperature superheater following current area.
It is preferred that, the convection bank and economizer and radiation of burner hearth heating surface are passed through saturation by the saturated vapor of thermal evaporation
Steam inlet sequentially passes through low temperature superheater, medium temperature overheater, high temperature superheater and the resistance to superheater countercurrent zone of superhigh temperature, and with heat
Flue gas adverse current flows.
It is preferred that, the saturated vapor that the resistance to superheater countercurrent zone of superhigh temperature is flowed through by superhigh temperature superheater following current area with
Heat smoke co-current flow, and outflow is exported by superheated steam.
It is preferred that, the convection bank and economizer and radiation of burner hearth heating surface are flowed through low temperature by the saturated vapor of thermal evaporation
The flow velocity in the resistance to superheater countercurrent zone of superheater, medium temperature overheater, high temperature superheater, superhigh temperature and superhigh temperature superheater following current area reaches
40m/s, temperature is up to 800 DEG C.
It is preferred that, the outer wall component of the resistance to superheater countercurrent zone of superhigh temperature and superhigh temperature superheater following current area is by one kind
The component that high-temperature alloy steel is made.
Compared with prior art, beneficial effects of the present invention are as follows：
1st, low pressure superhigh temperature superheated steam boiler of the invention, low according to special petrochemical industry and environmental improvement technological requirement
The characteristics of pressing superhigh temperature superheated steam, 40m/s, enhanced tube are brought up to by conventional superheated steam velocity in pipes from highest 25m/s
Interior heat transfer intensity, reduces tube wall temperature；Secondly, the bringing-up section that saturated vapor is heated into 800 DEG C of superhigh temperature superheated steams is divided into
Four different temperatures bringing-up sections such as low temperature superheater, medium temperature overheater, high temperature superheater, superhigh temperature superheater, each difference adds
Hot arc uses different steel alloys, and the superhigh temperature heat resisting steel cost of costliness is reduced to greatest extent.
2nd, low pressure superhigh temperature superheated steam boiler of the invention, the mixing of following current after superhigh temperature bringing-up section is using first adverse current
Stream mode, further reduces tube wall temperature, extends the service life of tubing, by saturated vapor bringing-up section and superheated steam bringing-up section
It is arranged on a unit, solves easily trouble that is mobile and being connected without Unit two, superheated steam can be made full use of to add again
Waste heat after heat, fully meets energy-saving and emission-reduction standard of the country to boiler.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention；
Fig. 2 is profile of the invention.
In figure：1 burner, 2 superhigh temperature superheater following current areas, the outlet of 3 superheated steams, 4 superhigh temperature superheater countercurrent zones, 5
High temperature superheater, 6 medium temperature overheaters, 7 low temperature superheaters, 8 saturated vapor imports, 9 convection banks, 10 economizers, 11 outlet flues,
12 feed pumps, 13 softening water tanks, 14 water process, 15 boiler foundations, 16 fuel tanks, 17 bodies of heater.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2, a kind of low pressure superhigh temperature superheated steam boiler, including body of heater 17 are referred to, body of heater 17 is arranged on boiler bottom
On seat 15, feed pump 12, softening water tank 13, hydrotreater 14 and fuel tank 16 are installed in boiler foundation 15；It is feed pump 12, soft
Change water tank 13 and hydrotreater 14 is arranged side by side, fuel tank 16 is arranged on the one of water pump 12, softening water tank 13 and hydrotreater 14
Side, can be moved easily cloud to scene with vehicle-mounted transport；The side of body of heater 17 is provided with burner 1, burner 1 and body of heater 17
Interior combustion chamber is interconnected, and the combustion chamber in body of heater 17 is also communicated with outlet flue 11, the outer wall of the insertion body of heater 17 of outlet flue 11；
Superhigh temperature superheater following current area 2, superhigh temperature superheater countercurrent zone 4, high temperature superheater 5, middle temperature are provided with the cavity of body of heater 17
Superheater 6, low temperature superheater 7, convection bank 9 and economizer 10；Convection bank 9 and economizer 10 connect saturation by connecting leg and steamed
Vapor inlet 8, saturated vapor import 8 is arranged on the side of low temperature superheater 7, and by connecting leg be sequentially communicated low temperature superheater 7, in
Warm superheater 6, high temperature superheater 5 and the resistance to superheater countercurrent zone 4 of superhigh temperature, the resistance to superheater countercurrent zone 4 of superhigh temperature and superhigh temperature mistake
A kind of component that the outer wall component in Re Qi following currents area 2 is made by high-temperature alloy steel, other parts all employ conventional pot
Stove alloy or plain cylindrical furnace steel pipe, greatly save the steel alloy of the superhigh temperature resistant of costliness；The resistance to He of superheater countercurrent zone 4 of superhigh temperature
Superheated steam outlet 3 is provided between superhigh temperature superheater following current area 2, superheated steam outlet 3 is overheated by connecting leg and superhigh temperature
Device following current area 2 is connected；Convection bank 9 and economizer 10 and radiation of burner hearth heating surface are steamed by the saturated vapor of thermal evaporation by saturation
Vapor inlet 8 sequentially passes through low temperature superheater 7, medium temperature overheater 6, high temperature superheater 5 and the resistance to superheater countercurrent zone 4 of superhigh temperature, and
With heat smoke counter-current flow；The saturated vapor that the resistance to superheater countercurrent zone 4 of superhigh temperature is flowed through by superhigh temperature superheater following current area 2 with
Heat smoke co-current flow, and flowed out by superheated steam outlet 3；Convection bank 9 and economizer 10 and radiation of burner hearth heating surface are heated
The saturated vapor of evaporation flows through the resistance to and of superheater countercurrent zone 4 of low temperature superheater 7, medium temperature overheater 6, high temperature superheater 5, superhigh temperature
The flow velocity in superhigh temperature superheater following current area 2 reaches 40m/s, and temperature is up to 800 DEG C.
Operation principle：This low pressure superhigh temperature superheated steam boiler, burner 1 discharges heat, pair of boiler in a combustion chamber
Working-medium water in flowing bundle 9 and the heated evaporation tube of economizer 10 and radiation of burner hearth heating surface, makes working-medium water be heated to saturated vapor, satisfies
Low temperature superheater import header is imported through connecting leg with steam, low temperature superheater 7, middle temperature are sequentially passed through by saturated vapor import 8
The resistance to superheater countercurrent zone 4 of superheater 6, high temperature superheater 5, superhigh temperature and heat smoke counter-current flow, then reach superhigh temperature overheat
Device following current area 2 and heat smoke co-current flow, eventually pass vapours outlet 3 and flow out；Steamed in the heating process of whole superheater
Vapour is gradually increased with the raising volume of temperature, and speed gradually rises with increase, steam flow rate from 15m/s, reaches flue gas most
Eminence reaches 40m/s；Because boiler tail arranges economizer 10, exhaust gas temperature can be controlled to less than 140 DEG C, is fully achieved
Energy-conservation discharge standard of the country to boiler.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of low pressure superhigh temperature superheated steam boiler, including body of heater (17), it is characterised in that：The body of heater (17) is arranged on pot
On furnace base (15), feed pump (12), softening water tank (13), hydrotreater (14) and fuel tank are installed in boiler foundation (15)
(16)；The feed pump (12), softening water tank (13) and hydrotreater (14) are arranged side by side, and fuel tank (16) is arranged on water pump
(12), the side of softening water tank (13) and hydrotreater (14)；The side of the body of heater (17) is provided with burner (1), burning
Device (1) is interconnected with the combustion chamber in body of heater (17), and the combustion chamber in body of heater (17) is also communicated with outlet flue (11), outlet flue
(11) outer wall of insertion body of heater (17)；Superhigh temperature superheater following current area (2), superhigh temperature are provided with the cavity of the body of heater (17)
Superheater countercurrent zone (4), high temperature superheater (5), medium temperature overheater (6), low temperature superheater (7), convection bank (9) and economizer
(10)；The convection bank (9) and economizer (10) connect saturated vapor import (8) by connecting leg, and saturated vapor import (8) is set
The side in low temperature superheater (7) is put, and low temperature superheater (7), medium temperature overheater (6), high temperature mistake are sequentially communicated by connecting leg
Hot device (5) and the resistance to superheater countercurrent zone (4) of superhigh temperature；The resistance to superheater countercurrent zone (4) of superhigh temperature and superhigh temperature superheater are suitable
Superheated steam outlet (3) is provided between stream area (2), superheated steam outlet (3) passes through connecting leg and superhigh temperature superheater following current area
(2) connect.
2. a kind of low pressure superhigh temperature superheated steam boiler according to claim 1, it is characterised in that：The convection bank
(9) sequentially passed through with economizer (10) and radiation of burner hearth heating surface by the saturated vapor of thermal evaporation by saturated vapor import (8)
Low temperature superheater (7), medium temperature overheater (6), high temperature superheater (5) and the resistance to superheater countercurrent zone (4) of superhigh temperature, and and heat smoke
Counter-current flow.
3. a kind of low pressure superhigh temperature superheated steam boiler according to claim 1 or 2, it is characterised in that：The superhigh temperature
The saturated vapor that resistance to superheater countercurrent zone (4) flows through by superhigh temperature superheater following current area (2) and heat smoke co-current flow, and by
Superheated steam outlet (3) outflow.
4. a kind of low pressure superhigh temperature superheated steam boiler according to claim 1 or 2 or 3, it is characterised in that：The convection current
Tube bank (9) and economizer (10) and radiation of burner hearth heating surface are flowed through low temperature superheater (7), middle temperature mistake by the saturated vapor of thermal evaporation
Hot device (6), high temperature superheater (5), the flow velocity in the resistance to superheater countercurrent zone (4) of superhigh temperature and superhigh temperature superheater following current area (2) reach
40m/s, temperature is up to 800 DEG C.
5. a kind of low pressure superhigh temperature superheated steam boiler according to claim 1, it is characterised in that：The resistance to mistake of superhigh temperature
The component that the outer wall component in hot device countercurrent zone (4) and superhigh temperature superheater following current area (2) is made by a kind of high-temperature alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710458734.8A CN107255267A (en) | 2017-06-16 | 2017-06-16 | A kind of low pressure superhigh temperature superheated steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710458734.8A CN107255267A (en) | 2017-06-16 | 2017-06-16 | A kind of low pressure superhigh temperature superheated steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107255267A true CN107255267A (en) | 2017-10-17 |
Family
ID=60023110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710458734.8A Pending CN107255267A (en) | 2017-06-16 | 2017-06-16 | A kind of low pressure superhigh temperature superheated steam boiler |
Country Status (1)
| Country | Link |
|---|---|
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202709082U (en) * | 2012-07-31 | 2013-01-30 | 太原锅炉集团有限公司 | Superheater device for waste incineration waste heat boiler for preventing high-temperature corrosion |
| CN202747319U (en) * | 2012-07-23 | 2013-02-20 | 江苏双良锅炉有限公司 | Oil burning or gas burning condensing type steam boiler arranged in front smokebox of superheater |
| CN104832904A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Gas boiler for heating saturated steam and superheated steam achieving method |
| CN105157012A (en) * | 2015-09-10 | 2015-12-16 | 常州大学 | Gas-fired boiler for overheating foreign steam |
| CN206944118U (en) * | 2017-06-16 | 2018-01-30 | 青岛骏鹏石化设备制造有限公司 | A kind of low pressure superhigh temperature superheated steam boiler |
-
2017
- 2017-06-16 CN CN201710458734.8A patent/CN107255267A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202747319U (en) * | 2012-07-23 | 2013-02-20 | 江苏双良锅炉有限公司 | Oil burning or gas burning condensing type steam boiler arranged in front smokebox of superheater |
| CN202709082U (en) * | 2012-07-31 | 2013-01-30 | 太原锅炉集团有限公司 | Superheater device for waste incineration waste heat boiler for preventing high-temperature corrosion |
| CN104832904A (en) * | 2015-05-13 | 2015-08-12 | 湖南中冶长天节能环保技术有限公司 | Gas boiler for heating saturated steam and superheated steam achieving method |
| CN105157012A (en) * | 2015-09-10 | 2015-12-16 | 常州大学 | Gas-fired boiler for overheating foreign steam |
| CN206944118U (en) * | 2017-06-16 | 2018-01-30 | 青岛骏鹏石化设备制造有限公司 | A kind of low pressure superhigh temperature superheated steam boiler |
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Application publication date: 20171017 |
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