CN208187122U - A kind of acetic acid cracking furnace - Google Patents
A kind of acetic acid cracking furnace Download PDFInfo
- Publication number
- CN208187122U CN208187122U CN201820708209.7U CN201820708209U CN208187122U CN 208187122 U CN208187122 U CN 208187122U CN 201820708209 U CN201820708209 U CN 201820708209U CN 208187122 U CN208187122 U CN 208187122U
- Authority
- CN
- China
- Prior art keywords
- heat
- heat exchanger
- acetic acid
- tube
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
Abstract
A kind of acetic acid cracking furnace, comprising: furnace body, heat exchanger tube I have heat-exchanger rig I, cooling tank body, heat exchanger tube II and heat exchange box.Acetic acid heating in heat exchanger tube I is realized cracking by high-temperature flue gas, gas after cracking is entered in cooling tank body by escape pipe, cracking gas is cooled fast to -20 DEG C or so by cooling water, gas after cooling is discharged by exhaust pipe, due to containing uncracked acetic acid in gas, therefore by becoming liquid after acetic acid cools down again, it is flowed into heat exchange box by outlet tube, it is sent into heat-exchanger rig II after being absorbed the high-temperature residual heat of flue gas due to the heat-exchanger rig I in smoke discharging pipe, therefore heat-exchanger rig II will be flowed back at feed pipe under the action of pump by connecting tube again after the acetic acid heating of low temperature in heat exchange box, to realize the cracking again for the acetic acid not being cleaved, improve cleavage rate, reduce manufacturing cost, simultaneously because being sent back in furnace body again after being heated acetic acid using fume afterheat, to save the consumption of heat, save the energy.
Description
Technical field
The utility model relates to acesulfame potassium production technical fields, and in particular to a kind of acetic acid cracking furnace.
Background technique
The primary product of acetic acid dehydration cracking under the high temperature conditions is ketenes, water, unreacted acetic acid and a small amount of
The gases such as methane, ethylene, in order to avoid ethylene and water react and need cracking gas being cooled fast to -20 DEG C or so, the mistake
Journey needs to consume a large amount of high-grade coolant, and cooling cost is very high, meanwhile, remaining has a large amount of high-temperature flue gas in pyrolysis furnace,
This partial fume must cause the waste of heat, unnecessary consumption mass energy if directly emptying.Meeting in the gas of cracking
Uncracked acetic acid is carried, acetic acid can become liquid deposition again when gas cooling, so as to cause the waste of raw material.
Summary of the invention
The utility model provides a kind of saving energy, improves acetic acid cracking rate to overcome the shortcomings of the above technology
Acetic acid cracking furnace.
The utility model overcomes the technical solution used by its technical problem to be:
A kind of acetic acid cracking furnace, comprising:
Furnace body, lower end is provided with natural gas fire row in inner cavity, and natural gas fire row upper end is provided with heat exchanger tube I, the furnace
Body upper end is provided with smoke discharging pipe, and the smoke discharging pipe is interior and is provided with heat-exchanger rig I above heat exchanger tube I；
Cooling tank body, inside heat exchanger tube II is installed；And
Heat exchange box is located at cooling tank body lower end, inside heat-exchanger rig II is installed；
The input end of the heat exchanger tube I, the feed pipe for conveying acetic acid and connecting tube are connected to threeway, described
The other end of connecting tube is connected to the bottom of heat exchange box by pump, and the outlet end of heat exchanger tube I is connected to cooling tank by escape pipe
Body, cools down on tank body and is provided with above escape pipe exhaust pipe, and the bottom of cooling tank body is connected to heat exchange by outlet tube
The upper end of the upper end of case, heat exchanger tube II is connected to cooling fluid supply pump by water inlet pipe, and the lower end of heat exchanger tube II passes through outlet pipe
It is connected to coolant bottle, heat-exchanger rig I is connected with heat-exchanger rig II, and heat-exchanger rig I passes the heat in the smoke discharging pipe of absorption
It is handed at heat-exchanger rig II.
Further, above-mentioned heat-exchanger rig I is the heat exchanger I being set in smoke discharging pipe, and the heat-exchanger rig II is to set
The heat exchanger II being placed in heat exchange box, the heat exchanger I and heat exchanger II are provided with conduction oil, and the outlet end of heat exchanger I passes through
Oil inlet pipe is connected to the input end of heat exchanger II, and the outlet end of heat exchanger II is connected to heat exchanger I through oil pump by oil return pipe
Input end.
Preferably, it is arranged at intervals with several heat exchange fins I in above-mentioned heat exchanger I, is arranged at intervals in the heat exchanger II
Several heat exchange fins II.
The beneficial effects of the utility model are: the acetic acid heating in heat exchanger tube I is realized cracking by high-temperature flue gas, after cracking
Gas is entered in cooling tank body by escape pipe, and intracorporal II upper end of heat exchanger tube of cooling tank inputs cooling water by water inlet pipe, is changed
Cooling water after heat exchange is recycled back to coolant bottle by outlet pipe by II lower end of heat pipe, and cracking gas is cooled fast to by cooling water-
20 DEG C or so, gas after cooling is discharged by exhaust pipe, and due to containing uncracked acetic acid in gas, acetic acid cools down again
It afterwards by becoming liquid, is flowed into heat exchange box by outlet tube, since the heat-exchanger rig I in smoke discharging pipe will be more than the high temperature of flue gas
After heat absorption be sent into heat-exchanger rig II in, therefore heat-exchanger rig II by heat exchange box low temperature acetic acid heat after under the action of pump
It is flowed back at feed pipe again by connecting tube, to realize the cracking again for the acetic acid not being cleaved, improves cleavage rate, reduced
Manufacturing cost, to save the consumption of heat, is saved simultaneously because sending back in furnace body again after being heated acetic acid using fume afterheat
The energy is saved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
In figure, 1. furnace body, 2. natural gas fire row, 3. heat exchanger tube, I 4. feed pipe, 5. threeway, 6. heat exchanger I, 7. heat exchange wing
I 8. smoke discharging pipe 9. of piece cools down 10. heat exchanger tube of tank body, II 11. water inlet pipe, 12. outlet pipe, 13. oil pump, 14. heat exchange box
15. connecting tube 16. pump 17. heat exchanger II, 18. heat exchange fin, II 19. outlet tube, 20. escape pipe, 21. exhaust pipe 22. into
23. oil return pipe of oil pipe.
Specific embodiment
1 pair of the utility model is described further with reference to the accompanying drawing.
A kind of acetic acid cracking furnace, comprising: furnace body 1, lower end is provided with natural gas fire row 2 in inner cavity, in natural gas fire row 2
End is provided with heat exchanger tube I 3, and 1 upper end of furnace body is provided with smoke discharging pipe 8, and smoke discharging pipe 8 is interior and is located at I 3 top setting of heat exchanger tube
There is heat-exchanger rig I；Cooling tank body 9, inside heat exchanger tube II 10 is installed；And heat exchange box 14, it is located at cooling 9 lower end of tank body,
Heat-exchanger rig II is installed inside it；The input end of heat exchanger tube I 3, the feed pipe 4 for conveying acetic acid and connecting tube 15 are divided
It is not connected to threeway 5, the other end of connecting tube 15 is connected to the bottom of heat exchange box 14, the outlet end of heat exchanger tube I 3 by pump 16
It is connected to cooling tank body 9 by escape pipe 20, cool down on tank body 9 and is provided with exhaust pipe 21 above escape pipe 20, it is cooling
The bottom of tank body 9 is connected to the upper end of heat exchange box 14 by outlet tube 19, and the upper end of heat exchanger tube II 10 is connected by water inlet pipe 11
Coolant bottle is connected to by outlet pipe 12 in the lower end of cooling fluid supply pump, heat exchanger tube II 10, heat-exchanger rig I and heat exchange fill
It sets II to be connected, heat-exchanger rig I will be at the heat transfer in the smoke discharging pipe of absorption to heat-exchanger rig II.Natural gas fire row 2 is burnt
When generate high-temperature flue gas, the acetic acid that feed pipe 4 conveys enters in heat exchanger tube I 3, and high-temperature flue gas adds the acetic acid in heat exchanger tube I 3
Heat realizes cracking, and the gas after cracking is entered in cooling tank body 9 by escape pipe 20, on the heat exchanger tube II 10 in cooling tank body 9
End inputs cooling water by water inlet pipe 11, and the cooling water after heat exchange is recycled back to cold by II 10 lower end of heat exchanger tube by outlet pipe 12
Cracking gas is cooled fast to -20 DEG C or so by but flow container, cooling water, and gas after cooling is discharged by exhaust pipe 21, due to gas
Contain uncracked acetic acid in body, thus acetic acid cool down again after by becoming liquid, flowed into heat exchange box 14 by outlet tube 19,
It is sent into heat-exchanger rig II after being absorbed the high-temperature residual heat of flue gas due to the heat-exchanger rig I in smoke discharging pipe 8, heat-exchanger rig
II will be flowed back to again at feed pipe 4 under the action of pumping 16 by connecting tube 15 after the acetic acid heating of low temperature in heat exchange box 14, from
And realize the cracking again for the acetic acid not being cleaved, cleavage rate is improved, manufacturing cost is reduced, simultaneously because utilizing fume afterheat
It is sent back in furnace body 1 again after acetic acid is heated, to save the consumption of heat, saves the energy.
Heat-exchanger rig I can be the heat exchanger I 6 being set in smoke discharging pipe 8, and heat-exchanger rig II can be to be set to change
Heat exchanger II 17 in hot tank 14, heat exchanger I 6 and heat exchanger II 17 are provided with conduction oil, and the outlet end of heat exchanger I 6 is logical
The input end that oil inlet pipe 22 is connected to heat exchanger II 17 is crossed, the outlet end of heat exchanger II 17 is connected by oil return pipe 23 through oil pump 13
It is connected to the input end of heat exchanger I 6.Heat exchanger I 6 internal will lead it after the high-temperature flue gas exhaust-heat absorption in smoke discharging pipe 8
Hot oil heating, the work of oil pump 13 is by the conduction oil in heat exchanger I 6 by exchanging heat in 22 inflow heat exchanger II 17 of oil inlet pipe
Device II 17 can heat the acetic acid in heat exchange box 14, after heat exchange conduction oil passes through oil return pipe 23 again and flows back to heat exchanger I 6,
Realize circulation.It is arranged at intervals with several heat exchange fins I 7 in heat exchanger I 6, is arranged at intervals with several heat exchange in heat exchanger II 17
Fin II 18.By the way that heat exchange fin I 7 is arranged, which increase the heat exchange areas with high-temperature flue gas, to improve heat exchanger I
6 heat absorption efficiencies.By the way that heat exchange fin II 8 is arranged, the heat exchange area with acetic acid in heat exchange box 14 is increased, the heat absorption of acetic acid is made
Efficiency is greatly improved.
Claims (3)
1. a kind of acetic acid cracking furnace characterized by comprising
Furnace body (1), lower end is provided with natural gas fire row (2) in inner cavity, and natural gas fire row (2) upper end is provided with heat exchanger tube I
(3), furnace body (1) upper end is provided with smoke discharging pipe (8), is set in the smoke discharging pipe (8) and above heat exchanger tube I (3)
It is equipped with heat-exchanger rig I；
Cooling tank body (9), inside heat exchanger tube II (10) is installed；And
Heat exchange box (14) is located at cooling tank body (9) lower end, inside heat-exchanger rig II is installed；
The input end of the heat exchanger tube I (3), the feed pipe (4) for conveying acetic acid and connecting tube (15) are connected to three
Logical (5), the bottom that the other end of the connecting tube (15) is connected to heat exchange box (14) by pumping (16), the outlet of heat exchanger tube I (3)
End is connected to cooling tank body (9) by escape pipe (20), is provided with exhaust on cooling tank body (9) and above escape pipe (20)
Manage (21), the bottom of cooling tank body (9) is connected to the upper end of heat exchange box (14) by outlet tube (19), heat exchanger tube II (10) it is upper
End is connected to cooling fluid supply pump by water inlet pipe (11), and the lower end of heat exchanger tube II (10) is connected to cooling by outlet pipe (12)
Flow container, heat-exchanger rig I are connected with heat-exchanger rig II, and heat-exchanger rig I fills the heat transfer in the smoke discharging pipe of absorption to exchanging heat
It sets at II.
2. acetic acid cracking furnace according to claim 1, it is characterised in that: the heat-exchanger rig I is to be set to smoke discharging pipe
(8) heat exchanger I (6) in, the heat-exchanger rig II are the heat exchanger II (17) being set in heat exchange box (14), the heat exchanger
I (6) and heat exchanger II (17) are provided with conduction oil, and the outlet end of heat exchanger I (6) is connected to heat exchanger II by oil inlet pipe (22)
(17) input end, the outlet end of heat exchanger II (17) by oil return pipe (23) through oil pump (13) be connected to heat exchanger I (6) into
Mouth end.
3. acetic acid cracking furnace according to claim 2, it is characterised in that: be arranged at intervals on the heat exchanger I (6) several
Heat exchange fin I (7) is arranged at intervals with several heat exchange fins II (18) on the heat exchanger II (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820708209.7U CN208187122U (en) | 2018-05-14 | 2018-05-14 | A kind of acetic acid cracking furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820708209.7U CN208187122U (en) | 2018-05-14 | 2018-05-14 | A kind of acetic acid cracking furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208187122U true CN208187122U (en) | 2018-12-04 |
Family
ID=64430100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820708209.7U Expired - Fee Related CN208187122U (en) | 2018-05-14 | 2018-05-14 | A kind of acetic acid cracking furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208187122U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865352A (en) * | 2021-09-26 | 2021-12-31 | 江苏新久化工设备制造有限公司 | Mixed feeding structure of acetic acid cracking furnace |
-
2018
- 2018-05-14 CN CN201820708209.7U patent/CN208187122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865352A (en) * | 2021-09-26 | 2021-12-31 | 江苏新久化工设备制造有限公司 | Mixed feeding structure of acetic acid cracking furnace |
| CN113865352B (en) * | 2021-09-26 | 2023-01-06 | 江苏新久化工设备制造有限公司 | Mixed feeding structure of acetic acid cracking furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202141195U (en) | Vacuum hot water boiler with waste heat recycling device | |
| CN203904327U (en) | White liquor distilling apparatus | |
| CN204661602U (en) | The spiral Riser waste heat recovery device for coke oven of a kind of close muscle | |
| CN204514097U (en) | A kind of steam retracting device | |
| CN208187122U (en) | A kind of acetic acid cracking furnace | |
| CN102925165A (en) | Afterheat recovery system for raw coke oven gas of coke oven ascension pipe | |
| CN206094990U (en) | Multilayer bushing type pre -heater | |
| CN210367707U (en) | Heat pipe integrated fermentation system with uniform heat supply | |
| CN208746758U (en) | Mobile heat-conducting oil heating system | |
| CN210045222U (en) | Alkylation reaction waste heat recovery utilizes device | |
| CN208594028U (en) | Heat reclaiming system | |
| CN202881181U (en) | Crude gas waste heat recovery system used for coke oven ascension pipe | |
| CN202164275U (en) | Device for heating feed tar by means of pitch production waste heat | |
| CN208911479U (en) | A kind of waste-heat recovery device of product equipment for purifying | |
| CN202339122U (en) | Gas cooling device | |
| CN105797414A (en) | Industrial waste heat recycling method and device | |
| CN211246541U (en) | Soapstock and acetic acid solution reaction system | |
| CN205524919U (en) | Absorption formula heating system for boats and ships | |
| CN104697348A (en) | Device and method for recycling flue gas waste heat of roasting furnace | |
| CN205461077U (en) | Device of used heat in recovery exhaust steam, waste flue gas body | |
| CN209165566U (en) | The cooling water utilization system of heavy oil process units | |
| CN216378046U (en) | Ascending pipe waste heat recycling mechanism | |
| CN202099252U (en) | High catalyst ratio to oil catalytic cracking device | |
| CN214537421U (en) | Energy-saving downstream pot-type calcining furnace | |
| CN209726156U (en) | Based on gas, thermo oil boiler heat recovery heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20181204 Termination date: 20210514 |