CN202403579U - Waste heat recycling device of coke oven ascending tube crude gas - Google Patents
Waste heat recycling device of coke oven ascending tube crude gas Download PDFInfo
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- CN202403579U CN202403579U CN2011205490352U CN201120549035U CN202403579U CN 202403579 U CN202403579 U CN 202403579U CN 2011205490352 U CN2011205490352 U CN 2011205490352U CN 201120549035 U CN201120549035 U CN 201120549035U CN 202403579 U CN202403579 U CN 202403579U
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- coke oven
- drum
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- heat exchanger
- heat
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model relates to a waste heat recycling device of coke oven ascending tube crude gas and belongs to the technical field of coke oven crude gas waste heat recycling. The technical scheme includes that the device comprises a concentration drum, a water supply main, a water return main, a plurality of ascending tubes and heat exchangers, wherein the plurality of ascending tubes are arranged at the top of a coke oven, the heat exchangers correspond to the ascending tubes, one concentration drum is connected with a plurality of heat exchangers respectively through the water supply main and the water return main, separated water enters into the water supply main through a water outlet of the concentration drum and is distributed to all heat exchangers which the ascending tubes of the coke oven correspond to through each of connecting pipes to absorb heat in the heat exchangers, a port of the separated water is vaporized and flows into the water return main through the connecting pipes, and a vaporized vapor-water mixture flows into the concentration drum though the water return main. The waste heat recycling device of the coke oven ascending tube crude gas has the advantages that the operation and controlling are quite convenient, and compared with operation and controlling of dozens of and hundreds of drums, only one concentration drum is operated and controlled, so that the device is quite convenient, simple and easy to implement.
Description
Technical field
The utility model relates to a kind of coke oven coke oven uprising tube raw coke oven gas heat recovery equipment, belongs to waste heat of coke oven crude gas recovery and utilization technology field.
Background technology
With regard to heat energy utilization, from british industrial revolution for hundreds of years, accumulated abundant background technology at industrial circle.Yet these background technologies are since coke enterprise uses carbonization chamber method to fire coke, and the waste heat of high temperature coke oven raw coke oven gas just fails effectively to utilize always in the tedge, can only waste heat with the cyclic ammonia water cooling.For example, adopt water leg method etc., all do not have successfully.In the last few years; Adopt hot pipe technique and the conduction oil technology all can not long-period stable operation, subject matter is: these background technologies all overcome the difficulty of coke-stove gas heat exchange, the heat-transfer surface tar that bonds occurred; Floccule stops up, and heat-transfer surface leaks influences coke production; Or when other partial fault of heat-exchange system quits work, carbonization chamber method, an oven coke has not been produced, and blowing out in the short time halfway is so problems such as heat pipe booster, the overheated coking of conduction oil occur.Done detailed explanation in one piece of " waste heat recovery of coking raw coke oven gas is shouldered heavy responsibilities " article of being write by Feng Hengfu that these present situations were published on September 14th, 2010 " China Metalurgy ", this article comprises the content of three parts altogether: the one, and the necessity of coking raw coke oven gas UTILIZATION OF VESIDUAL HEAT IN; The 2nd, China's coking raw coke oven gas UTILIZATION OF VESIDUAL HEAT IN process; The 3rd, accelerate the research and development of coking raw coke oven gas heat recovery technology.In the background technology; China's utility application " raw coke over gas riser residual heat recovery device "; Application number 200810122711.0 (CN101614498B) has proposed a kind of device with separate heat pipe recovery raw coke over gas riser waste heat, and this know-why is feasible; But file an application so far from utility model, the time more than 3 years is not still seen the report of in commercial production, successfully applying.Trace it to its cause, the one, there is the unforeseeable difficulty of designer, as controls difficulty, bonding tar etc.; Because this programme is that the release end of heat of separate heat pipe is put into drum, drum belongs to the carbonated drink separation container, needs Pressure gauge, liquid level gauge, and thermometer, safety valve etc., these instrument in service all are the foundations that instructs the operative employee to control to adjust; Every coke oven all has tens of up to a hundred tedges, and the heat release section of each tedge all places in the corresponding drum, and drum quantity is too many; The metered quantity that needs is corresponding also too many; Under normal fault rate, it is too heavy to repair school transposing task, if instrument does not have fault; It is also too many that so many drums are regulated the manpower that the control safe operation needs, and these say it is unforeseeable to the designer of research heat transfer theory; It two is that the structure of the heat absorbing end in the tedge shell needs inclined twice to penetrate to pass inwall; Such complex structure is difficult to make; Main is, and to bear the ability of thermal expansion distortion, thermal stress when the tedge live load changes relatively poor, and drawing crack fault in service is many.
The utility model content
The utility model purpose provides a kind of coke oven coke oven uprising tube raw coke oven gas heat recovery equipment; Make heat-transfer surface not burn into bonding tar or floccule obstruction; Can bear bigger thermal expansion distortion and thermal stress; Each tedge heat transfer system operating mode or fault are not disturbed mutually, and are convenient to very much control, and solve the problems referred to above that exist in the background technology.
The technical scheme of the utility model is: a kind of coke oven coke oven uprising tube raw coke oven gas heat recovery equipment; A plurality of tedges and the heat exchanger corresponding with tedge of comprise concentrated drum, water main and return main, on the coke oven top, arranging concentrate drum to be connected with a plurality of heat exchangers respectively with the return main through water main; Heat-transfer surface in the said tedge and heat exchanger form the space of an independent sealing; In this enclosure space, inject working solution during work, working solution heat-transfer surface in tedge absorbs the raw coke oven gas waste heat, relies on Natural Circulation to heat exchanger; Heat is passed to water; Make the water section vaporization, the steam water interface after the vaporization flows to concentrate in the drum through the return main and carries out carbonated drink separation, and the water of separation is got back to a plurality of heat exchangers respectively again through water main.
Every coke oven furnace roof tedge and corresponding heat exchanger are arranged to two groups continuously, are arranged in the left side and the right side of furnace roof, and neutral gear is left in the centre; The left side of neutral gear is arranged one group of dozens of tedge and corresponding heat exchanger continuously promptly; Dozens of tedge and corresponding heat exchanger are arranged for one group continuously in the right of middle neutral gear, concentrate drum convenient for craft piping, neutral gear place in the middle of being arranged on; The corresponding heat exchanger of the continuous tedge of arranging in both sides is convenient to connect with concentrated drum like this.
But also can adopt two concentrated drums, i.e. tedge and the corresponding heat exchanger arranged continuously of left side or right side, each uses a concentrated drum, becomes an autonomous system separately, and the effect of use is the same with a concentrated drum with principle.Concentrate the quantity of drum to arrange the tedge of layout and corresponding heat exchanger quantity and result of use to confirm continuously according to the coke oven top; Tedge and corresponding heat exchanger One's name is legion; Can consider to use plural concentrated drum, each concentrated drum becomes an autonomous system separately.
The described heat exchanger of the utility model; With regard to its structure, should belong to known technology; Here as the feedwater heat exchange of the release end of heat and the centralized drum of separate heat pipe, and have the structure of the tedge of heat-transfer surface, the prior art of Gong selecting for use is also a lot; As long as can bear the thermal expansion distortion under the operating mode, and the various thermal stress under distortion get final product.
Because only use a concentrated drum, the heat exchanger that the tedge that has is corresponding is far away apart from concentrated drum, and it is unreliable to carry out the carbonated drink circulation with free convection; Therefore can establish water circulating pump at concentrated drum delivery port place; Water is squeezed into water main, carry out forced convertion, guarantee that the carbonated drink circulation is unobstructed reliable.Do not carry out forced circulation if do not establish water pump, can be arranged on higher position to concentrated drum; But raise installation, maintenance, the tour of concentrating drum equipment or repair to change and all increased unnecessary difficulty.
The utility model method for using comprises following processing step: 1. a concentrated drum is set, collects and separate the corresponding heat exchanger carbonated drink of all coke oven coke oven uprising tubes, separated steam is delivered to subsequent processing and is used through concentrating the steam (vapor) outlet of drum; 2. the water that separates enters into water main through the water out of concentrating drum; And be assigned in the corresponding heat exchanger of all coke oven coke oven uprising tubes through each adapter; In heat exchanger, absorb heat, the part vaporization is after adapter flows among the return main, and the steam water interface after the vaporization flows to concentrated drum through the return main; 3. carry out carbonated drink separation again, separated steam spills out subsequent processing and uses, and the water of separation gets into next circulation again.
Raw coke oven gas is gone into tedge by the coke oven jacking; Pass to the medium in the heat-transfer area enclosure space to heat, after the medium heat absorption, lean on the spontaneous combustion convection circulation; Flow in the corresponding heat exchanger of every tedge; Pass to the water of heat exchanger to heat, make the water section vaporization of heat absorption, the steam water interface after the vaporization flows to concentrate in the drum through the return main and carries out carbonated drink separation.
Concentrate the quantity of drum to arrange the tedge of layout and corresponding heat exchanger quantity and result of use to confirm continuously according to the coke oven top; Tedge and corresponding heat exchanger One's name is legion; Can consider to use plural concentrated drum, each concentrated drum becomes an autonomous system separately.
Adopt the utility model; Raw coke oven gas waste heat in all tedge of coke oven is at first passed to the heat absorbing end of separate heat pipe in the tedge, leans on the free convection circulation to pass in the heat exchanger heat is passed to water; Make unified the flowing to of water heat absorbing part vaporization (the heat exchanger has here just become the release end of heat of separate heat pipe) concentrate drum to carry out carbonated drink separation through return pipe; Owing to have only a concentrated drum,, compare and control dozens of, up to a hundred drums so need control a concentrated drum; Very convenient and simple, be easy to realize.
The good effect of the utility model is: make heat-transfer surface not burn into bonding tar or floccule obstruction, can bear bigger thermal expansion distortion and thermal stress, each tedge heat transfer system operating mode or fault are not disturbed mutually; And be convenient to very much control,, only need control a concentrated drum owing to have only a concentrated drum; Compare and control dozens of, up to a hundred drums; Very convenient and simple, be easy to realize, solve this area and hoped the technical problem that solves for a long time.
Description of drawings
Accompanying drawing 1 is the utility model embodiment sketch map;
Among the figure: 1. left n heat exchanger water supply connecting tube; 2. left n tedge; 3. left three heat exchanger water supply connecting tubes; 4. left three tedges; 5. the second from left heat exchanger feed pipe; 6. the second from left tedge; 7. the first from left heat exchanger feed pipe; 8. the first from left tedge; 9. left side water main; 10. left side filling pipe; 11.12.13.14. water circulating pump; 15. right side filling pipe; 16. right side water main; A 17. right heat exchanger water supply connecting tube; A 18. right tedge; 19. right two heat exchanger water supply connecting tubes; 20. right two tedges; 21. right three heat exchanger water supply connecting tubes; 22. right three tedges; 23. right n heat exchanger water supply connecting tube; 24. right n tedge; 25. right n heat exchanger; 26. right n discharge connection; 27. right three heat exchangers; 28. right three discharge connections; 29. right two heat exchangers; 30. right two discharge connections; A 31. right heat exchanger; A 32. right discharge connection; 33. concentrate drum 34. right side return mains; 35. left side return main; 36. the first from left heat exchanger; 37. the first from left discharge connection; 38. the second from left heat exchanger; 39. the second from left discharge connection; 40. left three heat exchangers; 41. left three discharge connections; 42. left n heat exchanger; 43. left n discharge connection; 44. steam (vapor) outlet.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further through embodiment.
In the present embodiment, the middle neutral gear place of coke oven furnace roof is provided with and concentrates drum 33; Water circulating pump 11,12,13,14 is extracted water out from the delivery port of concentrating drum; Get to left side water main 9, in the right side water main 16, heat exchanger water supply connecting tube 1,3,5,7 and right side heat exchanger water supply connecting tube 17,19,21,23 through the left side; Be assigned in all heat exchangers in the left and right sides 31,29,27,25 and 36,38,40,42; Heat absorbing part vaporization in heat exchanger, steam water interface is heat exchanger exit adapter 37,39,41,43 and 32,30,28,26 through the left and right sides, flows among left side return main 35 and the right side return main 34.And in the concentrated drum 33 of 34,35 inflows, carry out carbonated drink separation, and separated steam is removed subsequent processing through steam (vapor) outlet 44, and the water of separation gets into water circulating pump through the drum delivery port, carries out next circulation.
Claims (4)
1. coke oven coke oven uprising tube raw coke oven gas heat recovery equipment; It is characterized in that: a plurality of tedges and the heat exchanger corresponding with tedge of comprise concentrated drum, water main and return main, on the coke oven top, arranging, a concentrated drum is connected with a plurality of heat exchangers respectively with the return main through water main.
2. a kind of coke oven coke oven uprising tube raw coke oven gas heat recovery equipment according to claim 1; It is characterized in that: every coke oven furnace roof tedge and corresponding heat exchanger are arranged to two groups continuously; Be arranged in the left side and the right side of furnace roof, neutral gear is left in the centre, and promptly the left side of middle neutral gear is arranged one group of dozens of tedge and corresponding heat exchanger continuously; Dozens of tedge and corresponding heat exchanger are arranged for one group continuously in the right of middle neutral gear, neutral gear place in the middle of concentrated drum is arranged on.
3. a kind of coke oven coke oven uprising tube raw coke oven gas heat recovery equipment according to claim 2; It is characterized in that: adopt two concentrated drums; Tedge that promptly or right side is arranged continuously and corresponding heat exchanger, each uses a concentrated drum, becomes an autonomous system separately.
4. according to claim 1 or 2 said a kind of coke oven coke oven uprising tube raw coke oven gas heat recovery equipment, it is characterized in that: the place establishes water circulating pump at concentrated drum delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205490352U CN202403579U (en) | 2011-12-26 | 2011-12-26 | Waste heat recycling device of coke oven ascending tube crude gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205490352U CN202403579U (en) | 2011-12-26 | 2011-12-26 | Waste heat recycling device of coke oven ascending tube crude gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403579U true CN202403579U (en) | 2012-08-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205490352U Expired - Lifetime CN202403579U (en) | 2011-12-26 | 2011-12-26 | Waste heat recycling device of coke oven ascending tube crude gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202403579U (en) |
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2011
- 2011-12-26 CN CN2011205490352U patent/CN202403579U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dong Jiuming Inventor after: Wang Zhanhua Inventor after: He Zongxu Inventor before: Dong Jiuming Inventor before: Wang Zhanhua Inventor before: He Zongxu |
|
| C56 | Change in the name or address of the patentee |
Owner name: TANGSHAN HENG KUN TECHNOLOGY CO., LTD. Free format text: FORMER NAME: TANGSHAN TIANYUAN CHEMICAL EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 063305. Hope West Road, Nanpu Development Zone, Hebei, Tangshan City Patentee after: TANGSHAN HENGKUN TECHNOLOGY CO., LTD. Address before: 063305. Hope West Road, Nanpu Development Zone, Hebei, Tangshan City Patentee before: Tangshan Chemical Equipment Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |