CN204227406U - A kind of coke dry quenching boiler feedwater deaerating system - Google Patents

A kind of coke dry quenching boiler feedwater deaerating system Download PDF

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Publication number
CN204227406U
CN204227406U CN201420619387.4U CN201420619387U CN204227406U CN 204227406 U CN204227406 U CN 204227406U CN 201420619387 U CN201420619387 U CN 201420619387U CN 204227406 U CN204227406 U CN 204227406U
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CN
China
Prior art keywords
boiler
dry quenching
coke dry
eliminating device
pressure type
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Expired - Fee Related
Application number
CN201420619387.4U
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Chinese (zh)
Inventor
姜乃斌
于民
姚良山
刘恩东
张乐
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Xian Huajiang Environmental Technologies Co Ltd
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Xian Huajiang Environmental Technologies Co Ltd
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Priority to CN201420619387.4U priority Critical patent/CN204227406U/en
Application granted granted Critical
Publication of CN204227406U publication Critical patent/CN204227406U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to a kind of coke dry quenching boiler feedwater deaerating system, it is characterized in that: at least comprise: coke dry quenching boiler, vapour source, pressure type oxygen-eliminating device, boiler economizer, deoxygenation water tank and feed pump, deoxygenation water tank and pressure type oxygen-eliminating device and connected by pipe fitting valve between pressure type oxygen-eliminating device and boiler economizer; Deoxygenation water tank is connected with coke dry quenching boiler pipe fitting valve by feed pump.By this system, reduce the oxygen content of oxygen-eliminating device water outlet, improve boiler feed temperature simultaneously, improve the wall surface temperature of boiler economizer, prevent the cold end corrosion of wall further, and increase Boiler Steam output.

Description

A kind of coke dry quenching boiler feedwater deaerating system
Technical field
The utility model relates to a kind of coke dry quenching boiler feedwater deaerating system, is applied in coke dry quenching boiler feedwater deaerating system.
Background technology
In dry coke quenching UTILIZATION OF VESIDUAL HEAT IN, conventional employing atmospheric type deaerator (pressure 0.02MPa).The water outlet oxygen content of atmospheric type deaerator, generally at 15 μ g/L, can not meet the requirement of high-temperature high-pressure boiler to feedwater oxygen content≤7 μ g/L, must set up auxiliary deaerating type of cycles.The auxiliary deoxygenation of coke dry quenching boiler feedwater generally adopts feedwater to add diamine or other medicines, and boiler feedwater standard has requirement to data such as the diamines of feedwater, constantly chemically examines water quality and regulates dose.And the characteristic of these medicines can work the mischief to human body, the pollution of environment during blowdown, can be caused.
Meanwhile, the leaving water temperature of atmospheric type deaerator about 104 DEG C, delivers to boiler economizer by feed pump.Containing a certain amount of sulfur in flue gas, lower feed temperature makes economizer wall surface temperature also lower, easily forms low temperature acid corrosion.
Utility model content
For above present situation, the utility model provides a kind of coke dry quenching boiler feedwater deaerating system, to reduce the oxygen content of oxygen-eliminating device water outlet, improves boiler feed temperature simultaneously.
The purpose of this utility model realizes like this, a kind of coke dry quenching boiler feedwater deaerating system, it is characterized in that: at least comprise: coke dry quenching boiler, vapour source, pressure type oxygen-eliminating device, boiler economizer, deoxygenation water tank and feed pump, deoxygenation water tank and pressure type oxygen-eliminating device and connected by pipe fitting valve between pressure type oxygen-eliminating device and boiler economizer; Deoxygenation water tank is connected with coke dry quenching boiler pipe fitting valve by feed pump.
Described pressure type oxygen-eliminating device operating pressure 0.3MPa.
Described coke dry quenching boiler is connected with vapour source by pipe fitting valve.
Control valve is had between described boiler economizer and pressure type oxygen-eliminating device.
The utility model has the advantages that: adopt pressure type oxygen-eliminating device to replace intrinsic atmospheric type deaerator.According to the feature of dry coke quenching technique, inert gas (being generally nitrogen) is drawn from the dry stove that puts out, and the inert gas temperature general control after boiler heat exchange is at 160 ~ 180 DEG C, and therefore the pressure type oxygen-eliminating device of selection work pressure 0.3MPa is comparatively suitable.
The water outlet oxygen content of pressure type oxygen-eliminating device can control at≤7 μ g/L, meets the requirement of boiler feedwater standard to feedwater oxygen content, therefore without the need to additionally arranging other auxiliary deaerating plants, saving investment and taking up an area, avoiding medicine pollution.
Pressure type oxygen-eliminating device leaving water temperature is higher, after delivering to boiler economizer, improves the wall surface temperature of economizer, prevents flue gas to corrode the low temperature acid of economizer further.
The raising of boiler economizer feed temperature, makes the steam production of boiler improve, produces obvious economic benefit.
Adopt pressure type oxygen-eliminating device, on dry coke quenching technique without impact.
In a word, by this system, reduce the oxygen content of oxygen-eliminating device water outlet, improve boiler feed temperature simultaneously, improve the wall surface temperature of boiler economizer, prevent the cold end corrosion of wall further, and increase Boiler Steam output.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the utility model is described in further detail:
Fig. 1 is the utility model embodiment accompanying drawing structural principle schematic diagram.
In figure, 1, coke dry quenching boiler; 2, vapour source; 3, pressure type oxygen-eliminating device; 4, boiler economizer; 5, deoxygenation water tank; 6, feed pump; 7, control valve.
Detailed description of the invention
As shown in Figure 1, a kind of coke dry quenching boiler feedwater deaerating system, it is characterized in that: at least comprise: coke dry quenching boiler 1, vapour source 2, pressure type oxygen-eliminating device 3, boiler economizer 4, deoxygenation water tank 5 and feed pump 6, sequentially pass through pipe fitting valve between deoxygenation water tank 5, pressure type oxygen-eliminating device 3, boiler economizer 4 successively and connect; Pressure type oxygen-eliminating device 3 is adopted to replace intrinsic atmospheric type deaerator.According to the feature of dry coke quenching technique, inert gas (being generally nitrogen) is drawn from the dry stove that puts out, and the inert gas temperature general control after boiler heat exchange is at 160 ~ 180 DEG C, and therefore the pressure type oxygen-eliminating device 3 of selection work pressure 0.3MPa is comparatively suitable.
Deoxygenation water tank 5 is connected with coke dry quenching boiler 1 pipe fitting valve by feed pump 6, the water outlet oxygen content of pressure type oxygen-eliminating device 3 can control at≤7 μ g/L, meet the requirement of boiler feedwater standard to feedwater oxygen content, therefore without the need to additionally arranging other auxiliary deaerating plants, save investment and take up an area, avoiding medicine pollution.
Coke dry quenching boiler 1 is connected with vapour source 2 by pipe fitting valve, provides part steam by vapour source 2 to coke dry quenching boiler 1.Because pressure type oxygen-eliminating device 3 leaving water temperature is higher, after delivering to boiler economizer 4, improve the wall surface temperature of economizer, prevent flue gas to corrode the low temperature acid of boiler economizer 4 further.
Control valve 7 is had between boiler economizer 4 and pressure type oxygen-eliminating device 3.

Claims (4)

1. a coke dry quenching boiler feedwater deaerating system, it is characterized in that: at least comprise: coke dry quenching boiler, vapour source, pressure type oxygen-eliminating device, boiler economizer, deoxygenation water tank and feed pump, deoxygenation water tank and pressure type oxygen-eliminating device and connected by pipe fitting valve between pressure type oxygen-eliminating device and boiler economizer; Deoxygenation water tank is connected with coke dry quenching boiler pipe fitting valve by feed pump.
2. a kind of coke dry quenching boiler feedwater deaerating system according to claim 1, is characterized in that: described pressure type oxygen-eliminating device operating pressure 0.3MPa.
3. a kind of coke dry quenching boiler feedwater deaerating system according to claim 1, is characterized in that: described coke dry quenching boiler is connected with vapour source by pipe fitting valve.
4. a kind of coke dry quenching boiler feedwater deaerating system according to claim 1, is characterized in that: have control valve between described boiler economizer and pressure type oxygen-eliminating device.
CN201420619387.4U 2014-10-24 2014-10-24 A kind of coke dry quenching boiler feedwater deaerating system Expired - Fee Related CN204227406U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420619387.4U CN204227406U (en) 2014-10-24 2014-10-24 A kind of coke dry quenching boiler feedwater deaerating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420619387.4U CN204227406U (en) 2014-10-24 2014-10-24 A kind of coke dry quenching boiler feedwater deaerating system

Publications (1)

Publication Number Publication Date
CN204227406U true CN204227406U (en) 2015-03-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106904678A (en) * 2017-02-08 2017-06-30 上海南阳精细化工有限公司 Application of the L vitamin Cs in boiler supply water deaerating corrosion inhibiter
CN108709413A (en) * 2018-05-24 2018-10-26 山东钢铁集团日照有限公司 A method of dry coke quenching warm air is carried out using combustion gas furnace and dries baker
CN110207081A (en) * 2018-12-18 2019-09-06 西安华江环保科技股份有限公司 A kind of subcritical superhigh temperature reheat boiler therrmodynamic system of dry coke quenching

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106904678A (en) * 2017-02-08 2017-06-30 上海南阳精细化工有限公司 Application of the L vitamin Cs in boiler supply water deaerating corrosion inhibiter
CN108709413A (en) * 2018-05-24 2018-10-26 山东钢铁集团日照有限公司 A method of dry coke quenching warm air is carried out using combustion gas furnace and dries baker
CN108709413B (en) * 2018-05-24 2020-06-30 山东钢铁集团日照有限公司 Method for dry quenching coke warm air drying oven by adopting flue gas oven
CN110207081A (en) * 2018-12-18 2019-09-06 西安华江环保科技股份有限公司 A kind of subcritical superhigh temperature reheat boiler therrmodynamic system of dry coke quenching

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GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150325

Termination date: 20191024