CN101619894B - Two-time condensation recovery device for waste heat of coke-oven crude gas - Google Patents
Two-time condensation recovery device for waste heat of coke-oven crude gas Download PDFInfo
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- CN101619894B CN101619894B CN2008101227746A CN200810122774A CN101619894B CN 101619894 B CN101619894 B CN 101619894B CN 2008101227746 A CN2008101227746 A CN 2008101227746A CN 200810122774 A CN200810122774 A CN 200810122774A CN 101619894 B CN101619894 B CN 101619894B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The invention relates to a two-time condensation recovery device for waste heat of coke-oven crude gas, which mainly solves the technique problem that the prior waste-heat recovery device is easy to coke and easy to damage causing leakage during application. The recovery device comprises a crude-gas two-time condenser, three groups of built-in heat-absorbing disc box tubes and a valve component for regulating heat absorption modes, wherein two ends of the crude-gas two-time condenser are provided with a crude gas inlet and a crude gas outlet; three groups of heat-absorbing disc box tubes are arranged inside a crude-gas two-time condenser shell side by side; a water replenishment pipeline is connected with the input end of each group of heat-absorbing disc box tubes through water inlet valves respectively; a hot-water output pipeline is connected with the output end of each group of heat-absorbing disc box tubes respectively; a water outlet valves are arranged between the output ends of the first two groups of heat-absorbing disc box tubes and the hot-water output pipeline; the back end of the hot-water output pipeline is provided with a flow control valve; and communication valvesare arranged between the output end of a first group of heat-absorbing disc box tubes and the input end of a second group of heat-absorbing disc box tubes, as well as between the output end of the second group of heat-absorbing disc box tubes and the input end of a third group of heat-absorbing disc box tubes.
Description
Technical field
The present invention relates to coking by coke oven process by-product raw coke oven gas cooling treating apparatus, particularly a kind of two-time condensation recovery device for waste heat of coke-oven crude gas.
Background technology
Energy recycling in the steel industry is the main means of energy-saving and emission-reduction; Energy recovery The application of new technique in the current process of coking obtains paying attention to day by day; The raw coke oven gas that tedge comes out in traditional coking system all is a cooling production technology of directly delivering to road, back spray ammoniacal liquor chilling; Cause in the coal oven dithio-gas great amount of heat to fail effectively to be reclaimed, make energy waste, environmental pollution.
Reclaim this part raw coke oven gas waste heat in the coking process, must overcome the difficult problem of tar coking on the tedge inwall of separating out owing to the raw coke oven gas cooling in the tedge, each large enterprises has all taked different measures in this respect.
Put down in writing according to academic documents: Central China University of Science and Technology's 2005 [flourish Master's thesis of " coke oven gas dry condensation cleaning new industrial research " Chen Gui of the Central China University of Science and Technology] is to Wuhan Iron and Steel Plant group coke-oven plant; Novelty has proposed the technology path of coke oven gas dry condensation cleaning; The raw coke oven gas that is coke oven production does not adopt direct spray ammoniacal liquor to contact the method for cooling; But all adopt the method for cooling indirectly; 800 ℃ raw coke oven gas at first reclaims pyrolysis system through indirect heat exchange, comprise heat recovering heat exchanger, cyclone dust collectors, refractory ceramics filter collector, tar segmentation cooling (tar segmentation separation), indirect water-cooling but, process for purifying such as coking chemical waste water collection, coal gas filtration.The system and the technology of the new coke gas dry cleaning of studying reduce the coking chemical waste water generation significantly, simultaneously, improve process for purifying waste water.And realized the pre-separation of tar, help the following process of its product.Though this method can reclaim the waste heat in the raw coke oven gas well, can not solve coking and influence, thereby reduce the organic efficiency of energy producing.
Chinese patent 02269190.1 discloses " a kind of coke-stove gas tedge waste-heat recoverer ", relates generally to a kind of coke-stove gas tedge waste-heat recoverer that reduces energy resource consumption, improves working environment, belongs to environmental protection and energy savings technical field.Constitute by gas up take.The key problem in technology of its solution is made up of chuck shell, chuck inner casing and upper cover, low head; And be equipped with water return outlet, delivery port; Be installed on the coke oven and push up, main body is sleeve-like, cooperates steam-water separator work; Demineralized water becomes steam water by water return outlet entering water leg and flows into steam-water separator by delivery port, and the steam of generation is by outlet output.Adopt the form of water leg to carry out waste heat recovery, gas outlet temperature is descended more than 200 ℃, not only improved workman's operating environment effectively, and reclaimed a large amount of heat energy, created good economic benefits and social benefit.But this patent is because chuck shell and chuck inner casing in use are easy to generate breakage; Cause the potential safety hazard that coke oven is produced; It is reported that the enterprise of this method of employing has only No. 5 new designs of coke oven of Taiyuan Iron and Steel Co. still to adopt the vaporization ascending tube system; So far still in normal operation, other producers all stop using already.
Summary of the invention
The object of the invention provides a kind of two-time condensation recovery device for waste heat of coke-oven crude gas, mainly is easy to generate the damaged technical problem that leakage takes place in the easy coking of the existing waste-heat recovery device existence of solution and the use.
Technical scheme of the present invention is: a kind of two-time condensation recovery device for waste heat of coke-oven crude gas; Comprise raw coke oven gas after-condenser and three groups of built-in absorbing heat disk case pipes and the valve member composition of regulating the heat absorption mode; Raw coke oven gas after-condenser two ends are raw coke oven gas air inlet and raw coke oven gas gas outlet; Three groups of absorbing heat disk case tube side-by-sides are provided with in the raw coke oven gas after-condenser housing; Water pipe is connected through the input of inlet valve with every group of heat absorption coil pipe respectively; The hot water delivery pipe road is connected with the output of every group of heat absorption coil pipe respectively; Be provided with flowing water Valve between preceding 2 groups of absorbing heat disk case pipe outputs and the hot water delivery pipe road, be provided with flow control valve, at first group of absorbing heat disk case pipe output and second group of absorbing heat disk case pipe input, between second group of absorbing heat disk case pipe output and the 3rd group of absorbing heat disk case pipe input, be provided with communicating valve in the rear end on hot water delivery pipe road.
The invention has the beneficial effects as follows: when reducing to 450 ℃ of left and right sides owing to the raw coke oven gas temperature in the tedge; Can produce a large amount of coal tar and separate out, thereby coking in large quantities on the tedge inwall influences the ordinary production of coke oven; Therefore; We are controlled at the raw coke oven gas temperature in the tedge about 500 ℃, do not make the raw coke oven gas in the tedge produce a large amount of cokings owing to lowering the temperature, and then about 500 ℃ raw coke oven gas are introduced this device and carry out the secondary waste heat recovery; Even if in this device, produce coking phenomenon, also can realize the logical burnt effect of off-line.Medium in the absorbing heat disk case pipe adopts water, carries out heat exchange through being in the coal oven dithio-gas that flows between the shell, and heat is taken away, and realizes that the secondary waste heat of raw coke oven gas reclaims purpose.This device can reclaim low-quality residual heat resources effectively, realizes the recovery of coal oven dithio-gas low side waste heat well, has favorable economic benefit and social benefit.The present invention can prevent raw coke oven gas in temperature-fall period, in tedge, produces a large amount of coking phenomenons, reduces the logical burnt frequency, when helping reclaiming the raw coke oven gas waste heat fully, reduces the influence that coking is produced.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure: 1-raw coke oven gas air inlet, 2-raw coke oven gas gas outlet, 3-water pipe, 4-hot water delivery pipe road; 5-absorbing heat disk case pipe, 6-flow control valve, 7, the 8-communicating valve, 9,11, the 13-inlet valve; 10,12-flowing water Valve, 14-housing, 15-raw coke oven gas after-condenser.
The specific embodiment:
With reference to Fig. 1; A kind of two-time condensation recovery device for waste heat of coke-oven crude gas; Comprise raw coke oven gas after-condenser 15 and three groups of built-in absorbing heat disk case pipes 5 and the valve member composition of regulating the heat absorption mode; Raw coke oven gas after-condenser two ends are raw coke oven gas air inlet 1 and raw coke oven gas gas outlet 2; Three groups of absorbing heat disk case pipes 5 are arranged side by side in the raw coke oven gas after-condenser housing 14; Water pipe 3 is connected through the input of inlet valve 13,11,9 with every group of heat absorption coil pipe respectively, and hot water delivery pipe road 4 is connected with the output of every group of heat absorption coil pipe 5 respectively, is provided with flowing water Valve 12,10 between preceding 2 groups of absorbing heat disk case pipe outputs and the hot water delivery pipe road; Be provided with flow control valve 6 in the rear end on hot water delivery pipe road, at first group of absorbing heat disk case pipe output and second group of absorbing heat disk case pipe input, between second group of absorbing heat disk case pipe output and the 3rd group of absorbing heat disk case pipe input, be provided with communicating valve 8,7.Three groups of absorbing heat disk case pipes 5 are made up of the heat exchanger tube of three groups of snakelike arrangements; Realize series connection (or parallel connection) duty through six valve sets controls; That is: can independent one group parallel operation; Also can two groups series connection and one group of independent parallel operation, also can three groups of tandem working states, reach the effect that changes endotherm area and control outlet water temperature.
The raw coke oven gas processing route: about 500 ℃ the raw coke oven gas of drawing from tedge top is by raw coke oven gas air inlet 1; Get into coal gas after-condenser 15; Do heat exchange with the absorbing heat disk case pipe that is arranged in this device; After making that the raw coke oven gas temperature is reduced to below 280 ℃, leave retracting device through raw coke oven gas gas outlet 2 and get into following one production process.
Independent one group parallel operation state path:
Communicating valve 7,8 is closed, and flow control valve 6, inlet valve 9,11,13, flowing water Valve 10,12 are all opened, three groups of independent operatings each other.Water gets into from inlet valve 13,11,9 respectively, comes out from flowing water Valve 12,10, flow control valve 6.
Two groups of series connection and one group of independent parallel operation state path:
Communicating valve 8, inlet valve 9, flowing water Valve 10 are closed, and flow control valve 6, communicating valve 7, inlet valve 11, flowing water Valve 12, inlet valve 13 are opened.Water gets into from inlet valve 13,11 respectively, comes out from flowing water Valve 12, flow control valve 6.
Three groups of tandem working state path:
Inlet valve 9, flowing water Valve 10, inlet valve 11, flowing water Valve 12 are closed, and flow control valve 6, communicating valve 7, communicating valve 8, inlet valve 13 are opened.Water gets into from inlet valve 13, flows out from flow control valve 6 through communicating valve 8, communicating valve 7.
So reciprocation cycle is carried out, thus when realizing the raw coke oven gas cooling effectively with the purpose of heat recovery, reach the energy that reclaims the raw coke oven gas sensible heat and make full use of the effect with environmental protection.
Claims (4)
1. two-time condensation recovery device for waste heat of coke-oven crude gas; It is characterized in that comprising raw coke oven gas after-condenser and three groups of built-in absorbing heat disk case pipes and the valve member of regulating the heat absorption mode; Raw coke oven gas after-condenser two ends are raw coke oven gas air inlet and raw coke oven gas gas outlet; Three groups of absorbing heat disk case tube side-by-sides are provided with in the raw coke oven gas after-condenser housing; Water pipe is connected through the input of inlet valve with every group of heat absorption coil pipe respectively; The hot water delivery pipe road is connected with the output of every group of heat absorption coil pipe respectively; Be provided with flowing water Valve between preceding 2 groups of absorbing heat disk case pipe outputs and the hot water delivery pipe road, be provided with flow control valve, at first group of absorbing heat disk case pipe output and second group of absorbing heat disk case pipe input, between second group of absorbing heat disk case pipe output and the 3rd group of absorbing heat disk case pipe input, be equipped with communicating valve in the rear end on hot water delivery pipe road.
2. a kind of two-time condensation recovery device for waste heat of coke-oven crude gas according to claim 1 is characterized in that two communicating valves close, all the other valve openings, and three groups of absorbing heat disk case pipes are parallel connection.
3. a kind of two-time condensation recovery device for waste heat of coke-oven crude gas according to claim 1; It is characterized in that first group of absorbing heat disk case pipe output and second group of absorbing heat disk case pipe input communicating valve close; The 3rd group of absorbing heat disk case pipe input inlet valve closed; Second group of absorbing heat disk case pipe output flowing water Valve closed, all the other valve openings, and three groups of absorbing heat disk case pipes are that two groups of series connection are parallelly connected separately with one group.
4. a kind of two-time condensation recovery device for waste heat of coke-oven crude gas according to claim 1; It is characterized in that the 3rd group of absorbing heat disk case pipe input inlet valve close; Second group of absorbing heat disk case pipe output flowing water Valve and input inlet valve are closed; First group of absorbing heat disk case pipe output flowing water Valve closed, all the other valve openings, and three groups of absorbing heat disk case pipes are series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101227746A CN101619894B (en) | 2008-06-30 | 2008-06-30 | Two-time condensation recovery device for waste heat of coke-oven crude gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008101227746A CN101619894B (en) | 2008-06-30 | 2008-06-30 | Two-time condensation recovery device for waste heat of coke-oven crude gas |
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| CN101619894A CN101619894A (en) | 2010-01-06 |
| CN101619894B true CN101619894B (en) | 2012-05-30 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367990B (en) * | 2011-11-10 | 2014-02-26 | 艾欧史密斯(中国)热水器有限公司 | Constant-temperature condensation gas water heater and control method thereof |
| CN104073267B (en) * | 2013-03-26 | 2016-02-24 | 宝山钢铁股份有限公司 | A kind of method reclaiming crude-gas sensible heat |
| CN105925278B (en) * | 2016-06-30 | 2021-05-11 | 中国重型机械研究院股份公司 | Stepping type pushing high-temperature coke breeze cooling system |
| CN108534568B (en) * | 2018-04-04 | 2023-12-01 | 珠海格力电器股份有限公司 | Shell-and-tube heat exchanger, water chilling unit and control method of water chilling unit |
| CN113446872A (en) * | 2021-06-23 | 2021-09-28 | 中国科学院广州能源研究所 | Cold energy recovery device in high-pressure low-temperature liquid gasification and temperature rise process |
| CN113587685B (en) * | 2021-08-03 | 2023-08-04 | 南京华电节能环保股份有限公司 | Secondary condensation method and device for recycling waste heat of raw coke oven gas |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309784A (en) * | 1999-04-26 | 2000-11-07 | Ishikawajima Harima Heavy Ind Co Ltd | Method for cooling crude gas and apparatus therefor |
| CN2416098Y (en) * | 2000-02-29 | 2001-01-24 | 中国冶金建设集团鞍山焦化耐火材料设计研究总院 | Coke oven elaporative cooling tedge |
| JP2001050610A (en) * | 1999-08-09 | 2001-02-23 | Sanyo Electric Co Ltd | Heat pump type air conditioner |
| CN2677843Y (en) * | 2003-12-31 | 2005-02-09 | 蒋瑾瑶 | Air compressor final heat exchanger using residual heat |
| CN1720315A (en) * | 2002-12-11 | 2006-01-11 | 犹德有限公司 | Cooling device for coke-oven gas |
| CN201031213Y (en) * | 2007-04-20 | 2008-03-05 | 武汉钢铁(集团)公司 | Coal gas horizontal pipe terminal cooling device |
| JP2008070087A (en) * | 2006-09-15 | 2008-03-27 | Tlv Co Ltd | Air heater |
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2008
- 2008-06-30 CN CN2008101227746A patent/CN101619894B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309784A (en) * | 1999-04-26 | 2000-11-07 | Ishikawajima Harima Heavy Ind Co Ltd | Method for cooling crude gas and apparatus therefor |
| JP2001050610A (en) * | 1999-08-09 | 2001-02-23 | Sanyo Electric Co Ltd | Heat pump type air conditioner |
| CN2416098Y (en) * | 2000-02-29 | 2001-01-24 | 中国冶金建设集团鞍山焦化耐火材料设计研究总院 | Coke oven elaporative cooling tedge |
| CN1720315A (en) * | 2002-12-11 | 2006-01-11 | 犹德有限公司 | Cooling device for coke-oven gas |
| CN2677843Y (en) * | 2003-12-31 | 2005-02-09 | 蒋瑾瑶 | Air compressor final heat exchanger using residual heat |
| JP2008070087A (en) * | 2006-09-15 | 2008-03-27 | Tlv Co Ltd | Air heater |
| CN201031213Y (en) * | 2007-04-20 | 2008-03-05 | 武汉钢铁(集团)公司 | Coal gas horizontal pipe terminal cooling device |
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| CN101619894A (en) | 2010-01-06 |
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