CN205002091U - Novel fuel, gas steam boiler - Google Patents
Novel fuel, gas steam boiler Download PDFInfo
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- CN205002091U CN205002091U CN201520609327.9U CN201520609327U CN205002091U CN 205002091 U CN205002091 U CN 205002091U CN 201520609327 U CN201520609327 U CN 201520609327U CN 205002091 U CN205002091 U CN 205002091U
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- drum
- boiler
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- upper drum
- heating surface
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Abstract
The utility model provides a novel fuel, gas steam boiler, it is including the upper drum and the lower drum that set up from top to bottom, connecting pipe between upper drum and the lower drum has constituted radiant heating surface and convection heating surface, and wherein connecting pipe, the most inboard connecting pipe in the outside and the connecting pipe of going up the lower drum tip are diaphragm type wall structure, and the most inboard diaphragm type wall constitutes furnace, connecting pipe one side between upper drum and lower drum is equipped with the combustor, and the upper drum top is equipped with air heater, and the air heater top is equipped with the chimney. The boiler adopt the diaphragm type wall as the stove outer covering, guaranteed the leakproofness of boiler, reduced the air leakage, cancelled heavy boiler setting's use, arrange simultaneously convection heating surface in the intermediate layer of radiant heating surface and stove outer covering, great reduction the size of boiler, reach energy -concerving and environment -protective effect.
Description
Technical field
The utility model belongs to coal-burned industrial boiler technical field, is specifically related to a kind of novel fuel, gas-steam boiler.
Background technology
China's coal-burned industrial boiler has nearly 500,000, expends coal 700,000,000 tons year, accounts for national consumption of coal total amount large.Coal-burned industrial boiler efficiency is low, pollutant emission level is high, automatization level is low, causes immense pressure to environment.Along with the raising of demand administered by national energy-saving reduction of discharging and haze, the further reinforcement of oil gas energy production capacity, fuel-oil or fuel-gas boiler progressively can substitute the market of Small Coal-fired Boilers future.
China achieved great progress in fuel-oil or fuel-gas boiler in recent years, and efficiency improves constantly, product design level improves constantly, and product type is enriched constantly.But mainly when product is horizontal tubular boiler and horizontal tubular boiler: horizontal tubular boiler structure is simple, floor space is little, but evaporation capacity is low, tube sheet easily damages; Horizontal tubular boiler can maximize, and aerogenesis is fast, but maintenance difficulty, maintenance is inconvenient.So oil-burning gas-fired boiler structurally, aspect is still potential in efficiency excavates, should development structure rationally, the fuel-oil or fuel-gas boiler of efficient, low emission.
Summary of the invention
The utility model is that water-tube fuel oil, gas-steam boiler body of heater volume are large for existing market, leak out serious, use the shortcomings such as heavy boiler setting is many, propose a kind of novel fuel, gas-steam boiler.
Realize the technical scheme of the utility model object: a kind of novel fuel, gas-steam boiler, it comprises upper drum setting up and down and lower drum; Tube connector between upper drum and lower drum constitutes radiation heating-surface and convection heating surface, and wherein the tube connector of outermost tube connector, inner side and the tube connector of drum end are up and down membrane wall structure, and the membrane wall of inner side forms burner hearth; Tube connector side between upper drum and lower drum is provided with burner, is provided with air preheater, is provided with chimney above air preheater above upper drum.
A kind of novel fuel as above, gas-steam boiler, its combustion gas and hot-air in burner burn, and the high-temperature flue gas of generation transfers heat to radiation heating-surface through radiation heat transfer, and the flue gas through radiation heat transfer enters convection heating surface; After the flue gas entering convection heating surface transfers heat to heating surface, flue gas is pooled in air preheater, after-heat is passed to the combustion air in air preheater, and last flue gas is discharged by chimney.Described convection heating surface is made up of three parts, and Part I is the back of the body fire face of radiation heating-surface, and Part II is the membrane wall forming furnace shell, and Part III is the drum tube connector between radiation heating-surface and furnace shell; Arrange that a part of heat exchanger tube forms superheater at interlayer simultaneously.
A kind of novel fuel as above, gas-steam boiler, the upper drum described in it and lower drum adopt O type structure.
A kind of novel fuel as above, gas-steam boiler, the upper drum described in it and middle two combs of lower drum pull open, and use the structure of membrane wall simultaneously, form burner hearth; Upper drum and outermost two combs of lower drum also pull open, and also use membrane wall structure simultaneously; The end of upper drum and lower drum also uses the structure of membrane wall, defines an airtight furnace shell by membrane wall.
Effect of the present utility model is:
Boiler described in the utility model adopts membrane wall as furnace shell, ensure that the sealing of boiler, decreases inleakage, eliminate the use of heavy boiler setting; Simultaneously in the interlayer of radiation heating-surface and furnace shell, arrange convection heating surface, greatly reducing the size of boiler, reach the effect of energy-conserving and environment-protective.Concrete advantage is as follows:
(1) this boiler furnace shell adopts membrane wall structure, decreases the air leakage coefficient of boiler, improves boiler efficiency; Membrane wall structure makes body of heater integral rigidity increase simultaneously.
(2) eliminate the use of heavy boiler setting, improve the security of boiler operatiopn, the overall cost of boiler is reduced, decreases the expense of later maintenance simultaneously.
(3) convection heating surface of this boiler and superheater are arranged between radiation heating-surface and furnace shell, boiler furnace volume is decreased a lot, greatly reducing the floor space of boiler.
(4) if this boiler adopts the combustion gas that sulfur content is very little, can arrange condensing heat exchanger, exhaust gas temperature can be reduced to less than 100 DEG C, and boiler efficiency is greater than 96%.
Accompanying drawing explanation
Fig. 1 is a kind of novel fuel described in the utility model, gas-steam boiler side structure schematic diagram.
Fig. 2 is a kind of novel fuel described in the utility model, gas-steam boiler sectional schematic diagram.
Fig. 3 is a kind of novel fuel described in the utility model, gas-steam boiler end view.
In figure: 1. upper drum; 2. lower drum; 3. radiation heating-surface; 4. convection heating surface; 5. superheater; 6. air preheater; 7. chimney; 8. burner.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, a kind of novel fuel described in the utility model, gas-steam boiler are further described.
As shown in Figure 1 to Figure 3, a kind of novel fuel described in the utility model, gas-steam boiler, adopt two drum longitudinally to arrange, O type structure, Natural Circulation.This boiler comprises the compositions such as upper drum 1, lower drum 2, radiation heating-surface 3, convection heating surface 4, superheater 5 (as needs), air preheater 6, chimney 7, burner 8.
Tube connector between its upper drum 1 setting up and down and lower drum 2 constitutes radiation heating-surface 3 and convection heating surface 4, wherein the tube connector of outermost tube connector, inner side and the tube connector of drum end are up and down membrane wall structure, and the membrane wall of inner side forms burner hearth; Tube connector side between upper drum 1 and lower drum 2 is provided with burner 8, is provided with air preheater 6 above upper drum 1, is provided with chimney 7 above air preheater 6.
A kind of novel fuel described in the utility model, gas-steam boiler, in burner 8, combustion gas and hot-air burn, and the high-temperature flue gas of generation transfers heat to radiation heating-surface 3 through radiation heat transfer, and the flue gas through radiation heat transfer enters convection heating surface 4; After the flue gas entering convection heating surface 4 transfers heat to heating surface, flue gas is pooled in air preheater 6, after-heat is passed to the combustion air in air preheater 6, and last flue gas is discharged by chimney 7.
Described upper drum 1 and middle two combs of lower drum 2 pull open, and use the structure of membrane wall simultaneously, form burner hearth; Upper drum 1 and outermost two combs of lower drum 2 also pull open, and also use membrane wall structure simultaneously; The end of upper drum 1 and lower drum 2 also uses the structure of membrane wall, defines an airtight furnace shell by membrane wall.The use of heavy boiler setting can be cancelled, eliminate the active force of furnace wall to boiler tube, enhance the security that heating surface runs.Between burner hearth and furnace shell, be furnished with the heating surface of light pipe, be also furnished with superheater simultaneously.In order to improve the thermal efficiency, being furnished with air preheater on burner top, as sulfur content in fuel is low, coagulating type heat exchanger can being selected.
Described convection heating surface 4 is made up of three parts, and Part I is the back of the body fire face of radiation heating-surface, and Part II is the membrane wall forming furnace shell, and Part III is the drum tube connector between radiation heating-surface and furnace shell.Arrange that a part of heat exchanger tube forms superheater 5 (wet steamer and hot-water boiler do not arrange superheater) at interlayer simultaneously.The flue gas exchange hot side entering convection heating surface washes away, and transfers heat to heating surface.
First deaerated water squeezes into upper drum 1, enters lower drum 2 through down-comer, and moisture is fitted in each heating surface by lower drum, and be pooled to upper drum 1 after the heat of the Absorption of Medium fume side transmission of each heating surface, in upper drum, gas-liquid is separated.Liquid enters lower drum 2 through down-comer again, and saturated vapor is drawn from upper drum and entered superheater, after steam is heated in the superheater, forms superheated steam for user.
Claims (5)
1. novel fuel, a gas-steam boiler, is characterized in that: this boiler comprises upper drum (1) setting up and down and lower drum (2); Tube connector between upper drum (1) and lower drum (2) constitutes radiation heating-surface (3) and convection heating surface (4), wherein the tube connector of outermost tube connector, inner side and the tube connector of drum end are up and down membrane wall structure, and the membrane wall of inner side forms burner hearth;
Tube connector side between upper drum (1) and lower drum (2) is provided with burner (8), upper drum (1) top is provided with air preheater (6), and air preheater (6) top is provided with chimney (7).
2. a kind of novel fuel according to claim 1, gas-steam boiler, it is characterized in that: in burner (8), combustion gas and hot-air burn, the high-temperature flue gas produced transfers heat to radiation heating-surface (3) through radiation heat transfer, and the flue gas through radiation heat transfer enters convection heating surface (4); After the flue gas entering convection heating surface (4) transfers heat to heating surface, flue gas is pooled in air preheater (6), after-heat is passed to the combustion air in air preheater (6), last flue gas is discharged by chimney (7).
3. a kind of novel fuel according to claim 2, gas-steam boiler, it is characterized in that: described convection heating surface (4) is made up of three parts, Part I is the back of the body fire face of radiation heating-surface, Part II is the membrane wall forming furnace shell, and Part III is the drum tube connector between radiation heating-surface and furnace shell; Arrange that a part of heat exchanger tube forms superheater (5) at interlayer simultaneously.
4. a kind of novel fuel according to claim 1, gas-steam boiler, is characterized in that: described upper drum (1) and lower drum (2) adopt O type structure.
5. a kind of novel fuel according to claim 1, gas-steam boiler, is characterized in that: described upper drum (1) and middle two combs of lower drum (2) pull open, and use the structure of membrane wall simultaneously, form burner hearth; Upper drum (1) and outermost two combs of lower drum (2) also pull open, and also use membrane wall structure simultaneously; The end of upper drum (1) and lower drum (2) also uses the structure of membrane wall, defines an airtight furnace shell by membrane wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609327.9U CN205002091U (en) | 2015-08-13 | 2015-08-13 | Novel fuel, gas steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520609327.9U CN205002091U (en) | 2015-08-13 | 2015-08-13 | Novel fuel, gas steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205002091U true CN205002091U (en) | 2016-01-27 |
Family
ID=55158976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520609327.9U Withdrawn - After Issue CN205002091U (en) | 2015-08-13 | 2015-08-13 | Novel fuel, gas steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205002091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180132A (en) * | 2015-08-13 | 2015-12-23 | 北京航天动力研究所 | Novel fuel oil and fuel gas steam boiler |
-
2015
- 2015-08-13 CN CN201520609327.9U patent/CN205002091U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180132A (en) * | 2015-08-13 | 2015-12-23 | 北京航天动力研究所 | Novel fuel oil and fuel gas steam boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160127 Effective date of abandoning: 20170718 |
|
| AV01 | Patent right actively abandoned |