CN201697097U - Boiler utilizing residual heat of petroleum coke smoke produced after calcination - Google Patents
Boiler utilizing residual heat of petroleum coke smoke produced after calcination Download PDFInfo
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- CN201697097U CN201697097U CN2010201511764U CN201020151176U CN201697097U CN 201697097 U CN201697097 U CN 201697097U CN 2010201511764 U CN2010201511764 U CN 2010201511764U CN 201020151176 U CN201020151176 U CN 201020151176U CN 201697097 U CN201697097 U CN 201697097U
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- heat transfer
- temperature heat
- petroleum coke
- boiler
- heat exchange
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Abstract
The utility model discloses a boiler utilizing the residual heat of petroleum coke smoke produced after calcination. The boiler comprises a heat exchange space enclosed by membrane panel outer walls. An upper boiler barrel and a lower boiler barrel are respectively arranged on the top and the bottom of the heat exchange space, and a plurality of membrane panel partition walls are longitudinally arranged in the heat exchange space. The wall tubes of the membrane panel partition walls are respectively communicated with the upper boiler barrel and the lower boiler barrel, the heat exchange space is separated into bent smoke channels communicated by the membrane panel partition walls, a heated tube bank is arranged in the medium temperature heat exchange area of the smoke channels, and the heated tube bank is respectively communicated with the upper boiler barrel and the lower boiler barrel. Smoke emitted in the calcination production technical process of petroleum coke is used as heating media, and the thermal efficiency is high. Energy saving purpose is realized, and environment pollution due to the direct induction of smoke heat to air is avoided.
Description
Technical field
The utility model relates to the boiler plant technical field, is specifically related to a kind of after-smithing petroleum coke fume afterheat and utilizes boiler.
Background technology
Petroleum coke is a crude oil after distillation separates weight matter oil, and mink cell focus is again through the process of hot tearing, the product that is transformed.The petroleum coke of being produced from petroleum coke factory all is called green coke, contain some not fugitive constituents of the carbon hydrocarbon compound of carbonization, green coke can be as the petroleum coke of fuel-grade, if do the anode of aluminium metallurgy or the electrode of steel-making usefulness, then need again through high-temperature calcination, make it finish carbonization, reduce fugitive constituent to minimum degree.
At present, the pot type combustion furnace is the capital equipment that petroleum coke is calcined, and in the both sides of combustion furnace quirk is set, and pulverous petroleum coke is filled in the body of heater.Green coke in the combustion furnace is subjected to thermogenetic fugitive constituent, then is introduced in the fuel of conduct calcining in the quirk, and calcining heat is generally about 1300 ℃.Fugitive constituent in the quirk heat that is produced that fully burns is fully absorbed by the green coke in the stove, and still, after flue gas heat was absorbed, the temperature when the pot type combustion furnace is derived was still very high, and temperature is greatly about more than 900 °.In order not allow the contained heat waste of this part of smoke fall, accomplish making full use of of resource, the flue gas that gives off can be imported in the steam generator system and use as heat medium, but the structure of existing boiler all is to have special combustion chamber, the use that also matches with the combustion chamber of the structure of burner hearth inside is to directly doing heat medium and inapplicable with flue gas.
The utility model content
Technical problem to be solved in the utility model provides a kind of after-smithing petroleum coke fume afterheat and utilizes boiler, with the flue gas that given off in the calcining petroleum coke production process as heat medium, thermal efficiency ratio is higher, not only realized energy-conservation purpose, and avoided the heat in the flue gas directly to import air environment is polluted.
For solving the problems of the technologies described above, the technical solution of the utility model is: the after-smithing petroleum coke fume afterheat utilizes boiler, comprise the heat transfer space that surrounds by the membrane wall exterior wall, top and bottom at described heat transfer space are respectively arranged with upper drum and lower drum, the wall pipe of described membrane wall exterior wall is communicated with described upper drum and described lower drum respectively, is respectively arranged with in the both sides of described membrane wall exterior wall to allow that flue gas passes in and out the gas approach and the exhanst gas outlet of described heat transfer space; In described heat transfer space, be vertically arranged with some membrane wall partition walls, the wall pipe of described membrane wall partition wall is communicated with described upper drum and described lower drum respectively, described membrane wall partition wall is separated into described heat transfer space the exhaust gases passes of the bending that is connected, described exhaust gases passes is the high temperature heat transfer zone near the part of described gas approach, described exhaust gases passes is the low-temperature heat exchange district near the part of described exhanst gas outlet, and described exhaust gases passes mid portion is the medium temperature heat transfer zone; Be provided with the tube bank of being heated in described medium temperature heat transfer zone, the described tube bank of being heated is communicated with described upper drum and described lower drum respectively.
As a kind of optimized technical scheme, in described medium temperature heat transfer zone, be tiltedly installed with some deflection plates, described deflection plate is arranged at the both sides of described medium temperature heat transfer zone respectively, and described both sides deflection plate is all downward-sloping.
As a kind of optimized technical scheme, in described high temperature heat transfer zone, be provided with high-temperature heat-exchanging, described high-temperature heat-exchanging is serially connected with on the steam (vapor) outlet of described upper drum.
As a kind of optimized technical scheme, in described low-temperature heat exchange district, be provided with cryogenic heat exchanger, the import of described cryogenic heat exchanger is connected with boiler water inlet pipe, and described cryogenic heat exchanger outlet is communicated with described upper drum.
After having adopted technique scheme, the beneficial effects of the utility model are:
1. the utility model after-smithing petroleum coke fume afterheat utilizes boiler to comprise the heat transfer space that is surrounded by the membrane wall exterior wall, and airtight performance is good, can reduce flue gas loss, improves boiler efficiency.Be vertically arranged with some membrane wall partition walls in heat transfer space, the membrane wall partition wall is separated into the exhaust gases passes of the bending that is connected with heat transfer space, has increased heat exchange area, has prolonged heat-exchange time.The flue gas that gives off in the after-smithing petroleum coke production process enters in the exhaust gases passes, and the water in institute's heat content tunicle formula wall exterior wall and the membrane wall partition wall wall pipe fully absorbs, and thermal efficiency ratio is higher.
2. exhaust gases passes is the high temperature heat transfer zone near the part of gas approach, and exhaust gases passes is the low-temperature heat exchange district near the part of exhanst gas outlet, and the exhaust gases passes mid portion is the medium temperature heat transfer zone.In the low-temperature heat exchange district, be provided with cryogenic heat exchanger, the cryogenic heat exchanger import is connected with boiler water inlet pipe, the cryogenic heat exchanger outlet is connected with upper drum, boiler feedwater at first enters in the cryogenic heat exchanger after the oxygen-eliminating device deoxygenation and is preheated by the low-temperature flue gas in low-temperature heat exchange district, fully sponges the heat in the flue gas.Be provided with the tube bank of being heated in the medium temperature heat transfer zone, and in the medium temperature heat transfer zone, be tiltedly installed with some deflection plates.Deflection plate stops flue gas and has not only reduced flue gas flow rate, has prolonged heat-exchange time, and flue gas broken up makes abundant diffusion, enlarges heat exchange area, and the tube bank of being heated is heated evenly.Water conservancy in membrane wall exterior wall, membrane wall partition wall, the convection bank flows in system naturally with the density contrast after being heated, and water temperature eminence density reduces upwards to flow, and the water temperature lower flows downward than great, and the steam water interface of generation enters in the upper drum and separates.Be provided with high-temperature heat-exchanging in the high temperature heat transfer zone, high-temperature heat-exchanging is connected with the steam (vapor) outlet of upper drum, and isolated saturated vapor continues heating by high-temperature heat-exchanging in the upper drum, finally generates superheated steam and supplies with the use of usefulness gas system.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Among the figure: 1. membrane wall exterior wall, 11. heat-insulation layers, 12. gas approach, 13. exhanst gas outlet, 21. upper drums, 22. lower drums, 3. membrane wall partition wall, 4. cryogenic heat exchanger, the tube bank of 5. being heated, 6. deflection plate, 7. high-temperature heat-exchanging, 81. first collection casees, 82. the second collection case, 9. oxygen-eliminating device, A. high temperature heat transfer zone, B. medium temperature heat transfer zone, C. low-temperature heat exchange district.
The specific embodiment
As shown in drawings, a kind of after-smithing petroleum coke fume afterheat utilizes boiler.It comprises the heat transfer space that is surrounded by membrane wall exterior wall 1, and airtight performance is good, can reduce flue gas loss, improves boiler efficiency, has heat-insulation layer 11 to prevent that heat scatters and disappears in membrane wall exterior wall 1 outer setting.Top and base portion at heat transfer space 1 are provided with upper drum 21 and lower drum 22 respectively, and the wall pipe of membrane wall exterior wall 1 is communicated with upper drum 21 and lower drum 22 respectively.
Be respectively arranged with the gas approach 12 and the exhanst gas outlet 13 of allowing flue gas turnover heat transfer space in the both sides of membrane wall exterior wall 1.Be vertically arranged with some membrane wall partition walls 3 in heat transfer space, the wall pipe of this membrane wall partition wall 3 is communicated with upper drum 21 and lower drum 22 respectively.Membrane wall partition wall 3 is separated into the exhaust gases passes of the bending that is connected with heat transfer space, has increased heat exchange area, has prolonged heat-exchange time.
Boiler feed water mouth place is provided with oxygen-eliminating device 9, therefore, after entering water in the boiler and having passed through oxygen-eliminating device 9 deoxygenations, has reduced the corrosion to steam generator system, has improved the life-span of boiler.
Exhaust gases passes is high temperature heat transfer zone A near the part of gas approach 12, and exhaust gases passes is low-temperature heat exchange district C near the part of exhanst gas outlet 13, and the exhaust gases passes mid portion is medium temperature heat transfer zone B.Be provided with cryogenic heat exchanger 4 in low-temperature heat exchange district C, the import of cryogenic heat exchanger 4 is connected with boiler water inlet pipe, and cryogenic heat exchanger 4 outlets are communicated with upper drum 21.Boiler feedwater at first enters in the cryogenic heat exchanger 4 after oxygen-eliminating device 9 deoxygenations and is preheated by the low-temperature flue gas of low-temperature heat exchange district C, fully sponges the heat in the flue gas.
Be provided with the tube bank 5 of being heated in medium temperature heat transfer zone B, the tube bank 5 of being heated is communicated with upper drum 21 and lower drum 22 respectively.Be tiltedly installed with some deflection plates 6 in medium temperature heat transfer zone B, deflection plate 6 is arranged at the both sides of medium temperature heat transfer zone B respectively, and both sides deflection plate 6 is all downward-sloping.Deflection plate 6 stops flue gas and has not only reduced flue gas flow rate, has prolonged heat-exchange time, and flue gas broken up makes abundant diffusion, enlarges heat exchange area, making tube bank 5 full and uniform being heated of being heated.
Be provided with high-temperature heat-exchanging 7 in high temperature heat transfer zone A, high-temperature heat-exchanging 7 is serially connected with on the steam (vapor) outlet of upper drum 21.Be provided with the first collection case 81 between high-temperature heat-exchanging 7 and upper drum 21, the outlet of high-temperature heat-exchanging 7 is connected with the second collection case 82.Water conservancy in membrane wall exterior wall 1, membrane wall partition wall 3, the tube bank 5 of being heated flows in system naturally with the density contrast after being heated, water temperature eminence density reduces upwards to flow, the water temperature lower flows downward than great, and the steam water interface of generation enters in the upper drum 21 and separates.Isolated saturated vapor continues heating by high-temperature heat-exchanging 7 in the upper drum 21, finally generates superheated steam supply usefulness gas system and uses.
Flue gas flow of the present utility model: shown in dotted arrow among the figure, the flue gas that has waste heat that gives off in the calcining petroleum coke production process enters heat transfer space by gas approach 12, at first enters high temperature heat transfer zone A, wherein is provided with high-temperature heat-exchanging 7; Enter low-temperature heat exchange district B then, B is stopped by deflection plate 6 in the low-temperature heat exchange district, slows down and diffusion, wherein is provided with the tube bank 5 of being heated; Enter low-temperature heat exchange district C at last, wherein be provided with cryogenic heat exchanger 4.
Boiler circuit flow process of the present utility model: boiler feedwater at first enters oxygen-eliminating device 9 deoxygenations, enter cryogenic heat exchanger 4 then, absorb the heat among the low-temperature heat exchange district C, enter upper drum 21 after obtaining preheating, water in the upper drum 21 is from being heated than the membrane wall exterior wall 1 of weak part, membrane wall partition wall 3, the tube bank 5 of being heated sinks to entering lower drum 22, the part heat that water absorbs in the flue gas in the sinking process obtains heating, enter the membrane wall exterior wall 1 of the water of lower drum 22 along the strong part of being heated, membrane wall partition wall 3, the tube bank 5 of being heated is risen, and further heating, become steam water interface, steam water interface separates in upper drum 21, water is proceeded with cocycle, isolated saturated vapor enters the first collection case 81 by the steam (vapor) outlet of upper drum 21, enter then in the high-temperature heat-exchanging 7 and heat at last, become superheated steam, supply with the use of usefulness gas system after the second collection case 82 is collected.
Claims (4)
1. the after-smithing petroleum coke fume afterheat utilizes boiler, comprise the heat transfer space that surrounds by the membrane wall exterior wall, top and bottom at described heat transfer space are respectively arranged with upper drum and lower drum, and the wall pipe of described membrane wall exterior wall is communicated with described upper drum and described lower drum respectively, it is characterized in that:
Be respectively arranged with in the both sides of described membrane wall exterior wall and allow that flue gas passes in and out the gas approach and the exhanst gas outlet of described heat transfer space;
In described heat transfer space, be vertically arranged with some membrane wall partition walls, the wall pipe of described membrane wall partition wall is communicated with described upper drum and described lower drum respectively, described membrane wall partition wall is separated into described heat transfer space the exhaust gases passes of the bending that is connected, described exhaust gases passes is the high temperature heat transfer zone near the part of described gas approach, described exhaust gases passes is the low-temperature heat exchange district near the part of described exhanst gas outlet, and described exhaust gases passes mid portion is the medium temperature heat transfer zone;
Be provided with the tube bank of being heated in described medium temperature heat transfer zone, the described tube bank of being heated is communicated with described upper drum and described lower drum respectively.
2. after-smithing petroleum coke fume afterheat as claimed in claim 1 utilizes boiler, it is characterized in that: in described medium temperature heat transfer zone, be tiltedly installed with some deflection plates, described deflection plate is arranged at the both sides of described medium temperature heat transfer zone respectively, and described both sides deflection plate is all downward-sloping.
3. after-smithing petroleum coke fume afterheat as claimed in claim 1 or 2 utilizes boiler, it is characterized in that: be provided with high-temperature heat-exchanging in described high temperature heat transfer zone, described high-temperature heat-exchanging is serially connected with on the steam (vapor) outlet of described upper drum.
4. after-smithing petroleum coke fume afterheat as claimed in claim 3 utilizes boiler, it is characterized in that: in described low-temperature heat exchange district, be provided with cryogenic heat exchanger, the import of described cryogenic heat exchanger is connected with boiler water inlet pipe, and described cryogenic heat exchanger outlet is communicated with described upper drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201511764U CN201697097U (en) | 2010-03-31 | 2010-03-31 | Boiler utilizing residual heat of petroleum coke smoke produced after calcination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201511764U CN201697097U (en) | 2010-03-31 | 2010-03-31 | Boiler utilizing residual heat of petroleum coke smoke produced after calcination |
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| Publication Number | Publication Date |
|---|---|
| CN201697097U true CN201697097U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201511764U Expired - Lifetime CN201697097U (en) | 2010-03-31 | 2010-03-31 | Boiler utilizing residual heat of petroleum coke smoke produced after calcination |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501401A (en) * | 2014-11-28 | 2015-04-08 | 梁治远 | High-efficiency energy-saving furnace |
| CN107990551A (en) * | 2017-12-27 | 2018-05-04 | 新乡市恒星科技有限责任公司 | One kind production lubricating grease heating furnace device |
-
2010
- 2010-03-31 CN CN2010201511764U patent/CN201697097U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501401A (en) * | 2014-11-28 | 2015-04-08 | 梁治远 | High-efficiency energy-saving furnace |
| CN104501401B (en) * | 2014-11-28 | 2018-03-16 | 梁治远 | Efficient energy-saving furnace |
| CN107990551A (en) * | 2017-12-27 | 2018-05-04 | 新乡市恒星科技有限责任公司 | One kind production lubricating grease heating furnace device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |
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| CX01 | Expiry of patent term |