CN209026804U - Itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler - Google Patents
Itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler Download PDFInfo
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- CN209026804U CN209026804U CN201821675910.XU CN201821675910U CN209026804U CN 209026804 U CN209026804 U CN 209026804U CN 201821675910 U CN201821675910 U CN 201821675910U CN 209026804 U CN209026804 U CN 209026804U
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Abstract
The utility model discloses itself a kind of deoxygenation superelevation pressure dry-extinguishing coke waste heat boilers, including burner hearth, reversal chamber, water cooled wall type hanging pipe, oxygen-eliminating device and high pressure drum, it is disposed with feed-water heater, low pressure evaporator, high-pressure economizer, fin pipe evaporator, light pipe evaporator, low temperature superheater, reheater and high temperature superheater from bottom to top in burner hearth.After the utility model, high temperature superheater outlet superheat steam pressure can reach 13.7~14MPa, temperature can reach 540~570 DEG C, generated energy is higher than existing high temperature and pressure dry coke quenching residual heat boiler by about 2% when identical exhaust gas volumn, it saves outer for steam and its corollary equipment, the investment and operating cost of entire engineering is greatly reduced, more compact structure, land occupation is less.
Description
Technical field
The utility model relates to waste heat boiler technical fields, more particularly to itself a kind of deoxygenation superelevation pressure dry-extinguishing coke waste heat pot
Furnace.
Background technique
Chinese large-sized iron and steel enterprise energy consumption per ton steel is higher than developed country by 10% at present, and medium-sized and small enterprises' energy consumption per ton steel is than flourishing
Country is high by 25%, greatly affected the competitiveness of China's steel and iron industry and the ability of sustainable development.Dry Quenching Technology is recyclable
Red Jiao Xianre, the quality for greatly reducing pollution to atmospheric environment, improving coke, optimization blast fumance, only coking process energy
The about 60kg mark coal/t that lowers consumption is burnt, is that the maximum project of waste heat proportion can be recycled in steel and iron industry, accounts for about recyclable waste heat
50%.Dry Quenching Technology occur since, undergo the development of decades, using its it is good energy conservation and environment protecting be iron and steel enterprise with
Coal chemical enterprise brings considerable economic benefit, environmental benefit, has become the great section of coal chemical enterprise and integrated iron and steel works
Energy and environmental protection technology.Dry coke quenching residual heat boiler is the important component and the higher key of scientific and technological content of dry coke quenching auxiliary
One of technology.The rational design of dry coke quenching residual heat boiler is significant for the safe and stable operation of entire dry quenching system.
By long-run development, current dry coke quenching residual heat boiler reasonable structure, in terms of achieve it is considerable
Progress, also therefrom middle benefit gas pressure develops to high temperature and pressure (typical steam parameter be 9.81MPa, 540 DEG C) to steam parameter, to propulsion
Dry Quenching Technology is made that contribution in the extensive use of coal chemical enterprise.But with coke oven increasingly enlargement and country and
Requirement of the industry to industry energy conservation environmental protection is increasingly stringenter, and the high temperature and pressure dry coke quenching residual heat boiler of existing mainstream exposes steaming
The not high enough disadvantage of vapour parameter does not adapt to the higher and higher requirement for generated energy and generating efficiency；Meanwhile it existing dry putting out
The water supply of burnt boiler is in the majority using external steam deoxygenation, needs to be additionally provided deoxygenation steam, and investment and operating cost are very high.Cause
This, it is necessary to existing dry coke quenching residual heat boiler technology is optimized, exploitation more high parameter simultaneously itself can provide deoxygenation steam
Dry coke quenching residual heat boiler improves the generated energy of entire dry coke quenching electricity generation system, reduces investment and operating cost.
Utility model content
In order to solve the above technical problems, the utility model devises itself a kind of deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler.
The utility model adopts the following technical solution:
Itself a kind of deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler, including burner hearth, reversal chamber, water cooled wall type hanging pipe, deoxygenation
Device and high pressure drum, which is characterized in that be disposed with feed-water heater, low pressure evaporator, high pressure in burner hearth from bottom to top and save
Coal device, high pressure fin pipe evaporator, high pressure light pipe evaporator, low temperature superheater and high temperature superheater；Feed-water heater by into
Mouth header and low pressure feed water pump connect, and are connect by outlet header with oxygen-eliminating device；Low pressure evaporator passes through import header and outlet
Header is connect with oxygen-eliminating device；High-pressure economizer is connect by import header and high pressure water pump with oxygen-eliminating device, and outlet header is passed through
It is connect with high pressure drum；High pressure fin pipe evaporator is connect by import header and outlet header with high pressure drum；High pressure light pipe
Evaporator is connect by import header and outlet header with high pressure drum；Low temperature superheater is connected by import header and high pressure drum
It connects, is connected by the import header of outlet header and high temperature superheater；High temperature superheater passes through import header and low temperature superheater
Outlet header connection, connect by outlet header with steam turbine high-pressure cylinder；It is arranged between high temperature superheater and low temperature superheater
There is attemperator.
Preferably, the high temperature superheater outlet superheat steam pressure is 13.7~14MPa, temperature is 540~570
℃。
Preferably, the operating pressure of the oxygen-eliminating device is 0.2~0.7MPa.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, in the case where identical exhaust gas volumn, although the utility model institute producing steam amount is less than existing high temperature and pressure dry coke quenching
Waste heat boiler, but due to steam parameter height, is computed and live running and comparing, and the generated energy of the utility model is than existing high temperature
High pressure dry-extinguishing coke waste heat boiler is high by about 2%；
2, due to utilizing self-produced low-pressure steam deoxygenation, the utility model save it is outer for steam and its corollary equipment, can
The investment and operating cost of entire engineering is greatly reduced；
3, compared with singly pressure is without from deoxygenation boiler, feed-water heater is integrated into boiler furnace by the utility model, and
Oxygen-eliminating device can be placed using steelframe, therefore the more compact structure of entire engineering, occupied area are small.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model；
In figure: 1, low pressure feed water pumps, 2, feed-water heater, 3, oxygen-eliminating device, 4, low pressure evaporator, 5, high pressure water pump, 6,
High-pressure economizer, 7, high pressure drum, 8, high pressure fin pipe evaporator, 9, high pressure light pipe evaporator, 10, low temperature superheater, 11,
Attemperator, 12, high temperature superheater, A, gas inlet, B, exhanst gas outlet, C, feed-water inlet, D, steam turbine high-pressure cylinder.
Specific embodiment
Below by specific embodiment, and in conjunction with attached drawing, the technical solution of the utility model work is further specifically retouched
It states:
Embodiment: as shown in Fig. 1, itself a kind of deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler, including burner hearth, reversal chamber,
Water cooled wall type hangs pipe, oxygen-eliminating device 3 and high pressure drum 7, is disposed with feed-water heater 2 in burner hearth from bottom to top, low pressure is steamed
Send out device 4, high-pressure economizer 6, high pressure fin pipe evaporator 8, high pressure light pipe evaporator 9, low temperature superheater 10, high temperature superheater
12；Feed-water heater 2 is connect by import header with low pressure feed water pump 1, is connect by outlet header with oxygen-eliminating device 3；Low pressure is steamed
Hair device 4 is connect by import header and outlet header with oxygen-eliminating device 3；High-pressure economizer 6 passes through import header and high pressure water pump 5
It connect with oxygen-eliminating device 3, is connect by outlet header with high pressure drum 7；High pressure fin pipe evaporator 8 passes through import header and outlet
Header is connect with high pressure drum 7；High pressure light pipe evaporator 9 is connect by import header and outlet header with high pressure drum 7；Low temperature
Superheater 10 is connect by import header with high pressure drum 7, is connect by outlet header with the import header of high temperature superheater 12；
High temperature superheater 12 is connected by the outlet header of import header and low temperature superheater, passes through outlet header and steam turbine high-pressure cylinder
D connection；Attemperator 11 is provided between high temperature superheater 12 and low temperature superheater 10.
High temperature superheater outlet superheat steam pressure is 13.7~14MPa, and temperature is 540 DEG C~570 DEG C；The work of oxygen-eliminating device
Making pressure is 0.2~0.7MPa.
Itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler in use, the high-temperature flue gas come from gas turbine from smoke inlet
A enters boiler in the horizontal direction, flows down through burner hearth after reversal chamber steering, except in addition to water cooled wall type hanging pipe heat exchange, from upper
It is successively saved with high temperature superheater 12, low temperature superheater 10, high pressure light pipe evaporator 9, high pressure fin pipe evaporator 8, high pressure under
Coal device 6, low pressure evaporator 4 and the heat exchange cooling of feed-water heater 2, then flow out burner hearth from exhanst gas outlet B.
Water supply enters from feed-water inlet C, enters feed-water heater 2 by import header after 1 pressurization of low pressure feed water pump,
Oxygen-eliminating device 3 is entered by outlet header and tedge after heating in feed-water heater 2, low pressure evaporator 4 is utilized in oxygen-eliminating device 3
The low-pressure steam of generation carries out deoxygenation, and the part water in oxygen-eliminating device 3 after deoxygenation enters low pressure by down-comer and import header
Evaporator 4, is heated in low pressure evaporator 4 and generates low-pressure steam, and low-pressure steam enters deoxygenation by outlet header and tedge
Device 3 carries out deoxygenation, water of the another part in oxygen-eliminating device 3 after deoxygenation to the water supply come in feed-water heater 2 in oxygen-eliminating device 3
Entered after high pressure water pump 5 pressurizes by down-comer and high-pressure economizer 6 is entered by import header, heated in high-pressure economizer 6
High pressure drum 7 is entered by outlet header and tedge afterwards, the water in high pressure drum 7 by down-comer and import header respectively into
Enter high pressure fin pipe evaporator 8 and high pressure light pipe evaporator 9, is heated in high pressure fin pipe evaporator 8 and high pressure light pipe evaporator 9
After generate steam water interface, steam water interface enters high pressure drum 7 by outlet header and tedge, in high pressure drum 7 into
Row steam-water separation, the saturated vapor after separation enter low temperature superheater 10 by import header, are added in low temperature superheater 10
For heat at superheated steam, superheated steam enters high temperature superheater 12 after 11 temperature adjustment of attemperator, is added in high temperature superheater 12
Heat is at the superheated steam (13.7~14MPa, 540~570 DEG C) of higher temperature and pressure, and then superheated steam is introduced into steam turbine
High pressure cylinder D acting.
Embodiment described above is a kind of preferable scheme of the utility model, is not made to the utility model any
Formal limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (3)
1. itself a kind of deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler, including burner hearth, reversal chamber, water cooled wall type hanging pipe, oxygen-eliminating device
(3) and high pressure drum (7), which is characterized in that be disposed with feed-water heater (2) in the burner hearth from bottom to top, low pressure is steamed
Send out device (4), high-pressure economizer (6), fin pipe evaporator (8), light pipe evaporator (9), low temperature superheater (10) and hyperthermia and superheating
Device (12)；Feed-water heater (2) is connect by import header with low pressure feed water pump (1), is connected by outlet header and oxygen-eliminating device (3)
It connects；Low pressure evaporator (4) is connect by import header and outlet header with oxygen-eliminating device (3)；High-pressure economizer (6) passes through inlet header
Case and high pressure water pump (5) are connect with oxygen-eliminating device (3), are connect by outlet header with high pressure drum (7)；Fin pipe evaporator
(8) it is connect by import header and outlet header with high pressure drum (7)；Light pipe evaporator (9) passes through import header and outlet collection
Case is connect with high pressure drum (7)；Low temperature superheater (10) is connect by import header with high pressure drum (7), and outlet header is passed through
It is connect with the import header of high temperature superheater (12)；High temperature superheater (12) passes through the outlet collection of import header and low temperature superheater
Case connection, is connect by outlet header with steam turbine high-pressure cylinder D；It is arranged between high temperature superheater (12) and low temperature superheater (10)
There are attemperator (11).
2. itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler according to claim 1, which is characterized in that the oxygen-eliminating device
Operating pressure is 0.2~0.7MPa.
3. itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler according to claim 1, which is characterized in that the hyperthermia and superheating
Device outlet superheat steam pressure is 13.7~14MPa, and temperature is 540~570 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821675910.XU CN209026804U (en) | 2018-10-16 | 2018-10-16 | Itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821675910.XU CN209026804U (en) | 2018-10-16 | 2018-10-16 | Itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209026804U true CN209026804U (en) | 2019-06-25 |
Family
ID=66906398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821675910.XU Active CN209026804U (en) | 2018-10-16 | 2018-10-16 | Itself deoxygenation superelevation pressure dry-extinguishing coke waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209026804U (en) |
-
2018
- 2018-10-16 CN CN201821675910.XU patent/CN209026804U/en active Active
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| GR01 | Patent grant | ||
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Address after: 1216, danionggang Road, Jianggan District, Hangzhou City, Zhejiang Province, 310021 Patentee after: Xizi clean energy equipment manufacturing Co.,Ltd. Address before: 1216, danionggang Road, Jianggan District, Hangzhou City, Zhejiang Province, 310021 Patentee before: HANGZHOU BOILER GROUP Co.,Ltd. |