CN109780722A - A kind of energy conservation oxygen heating furnace - Google Patents
A kind of energy conservation oxygen heating furnace Download PDFInfo
- Publication number
- CN109780722A CN109780722A CN201910087718.1A CN201910087718A CN109780722A CN 109780722 A CN109780722 A CN 109780722A CN 201910087718 A CN201910087718 A CN 201910087718A CN 109780722 A CN109780722 A CN 109780722A
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- China
- Prior art keywords
- oxygen
- pipe
- radiant coil
- radiation chamber
- economizer bank
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention discloses a kind of energy saving oxygen heating furnaces, which includes radiation chamber, radiant coil, combustion apparatus, support construction, hanging structure, chimney, convection cell and air preheating system；The heated portion of radiant coil is arranged in radiation chamber, and the upper and lower ends of radiant coil pass through hanging structure respectively and support construction is supported fixation；Combustion apparatus carries out radiant heating to radiant coil, and oxygen economizer bank is arranged in the convection cell above radiation chamber, and oxygen economizer bank is connected with the entrance of radiant coil, and vapor economizer bank is arranged in the top of oxygen economizer bank；Air preheating system, which is realized, participates in burning using send surrounding air into radiation chamber after the hot fume preheating in chimney.The configuration of the present invention is simple, it is easily manufactured, the demand of process units enlargement can be able to satisfy.
Description
Technical field
The present invention relates to a kind of oxygen heating furnaces, belong to fine chemistry industry tubular heater equipment technical field.
Background technique
In world's titanium dioxide industry, main production has chloridising and sulfuric acid process.With the research and development progress of technology, sulfuric acid
Method is gradually eliminated.Chinese titanium powder industry starts to walk evening, small scale, low output, at high cost, unstable product quality.Technology origin
Single and need introduction of foreign technology, capital equipment is all by external import.
Chloridising production technology is broadly divided into, burden process, chloride process, refining step, oxidation operation and post-processing work
Five master operations such as sequence.In oxidation operation, room temperature oxygen heating to design temperature, it is transported in oxidation reactor and four
Titanium chloride mixes rapidly, reacts and produces titanium dioxide and chlorine.The control of oxygen heating temperature is that this process is most important
Response parameter.Oxygen heating furnace is equipment most crucial in the process unit, and the stability of operation directly affects reaction depth
And product quality.
But there are still following problems for the prior art:
1, oxygen heating furnace structure is complicated, and the demand of large and medium-sized production technology is unable to satisfy using small scale.
2, structure design limitations cause heat transfer coils one direction heated, and processing medium uneven heating is even, coil pipe part mistake
Heat causes service life low, and production stability is poor, security presence hidden danger.
3, reasonable heat exchange process and afterheat utilizing system are not designed, and the thermal efficiency is relatively low, and energy consumption is higher, and waste is serious.Three
Useless discharge amount is big, easily forms greenhouse gases effect, is unfavorable for environmental protection.
4, coiled tube supports system is washed away in furnace by high-temperature flue gas, and stress is complicated, and material grade is high, and cost of investment rises.
5, line operation pressure drop is big, and operating cost is high.
Summary of the invention
In view of this, structure is simple the present invention provides a kind of energy saving oxygen heating furnace, and it is easily manufactured, it can expire
The demand of sufficient process units enlargement.
A kind of energy conservation oxygen heating furnace, which includes radiation chamber, radiant coil, combustion apparatus, support construction, hanging
Structure, chimney, convection cell and air preheating system；
The heated portion of the radiant coil is arranged in radiation chamber, and the upper and lower ends of radiant coil pass through hanging knot respectively
Structure and support construction are supported fixation；Combustion apparatus carries out radiant heating to radiant coil, in the convection cell above radiation chamber
Oxygen economizer bank is set, and oxygen economizer bank is connected with the entrance of radiant coil, and the top setting vapor of oxygen economizer bank preheats
Pipe；Air preheating system, which is realized, participates in burning using send surrounding air into radiation chamber after the hot fume preheating in chimney.
Further, the radiant coil is made of upper set pipe, lower concetrated pipe and boiler tube, upper set pipe and lower concetrated pipe
Horizontally disposed, boiler tube is connected in side by side between upper set pipe and lower concetrated pipe, the both ends of boiler tube simultaneously with upper set pipe and next part
Pipe is closed to connect.
Further, the air preheating system includes flue, secondary air preheater, air blower and one
Grade air preheater；
Hot fume in chimney is introduced secondary air preheater by flue by the flue gas pressure fan, and hot fume exists
Heat exchange is carried out with the surrounding air by the preheating of main air preheater in secondary air preheater, hot fume completes heat exchange
After be again introduced into chimney emptying, surrounding air is completed to be sent into radiation chamber by air blower after heat exchange to participate in combustion apparatus
Burning.
Further, the ratio between gravity of the hanging structure and support construction raying coil pipe is 3:7.
The utility model has the advantages that
1, radiation chamber of the invention design in rectangular configuration, structure is simple, easily manufactured.When needing to expand scale, only
Length direction extending design or designed in mirror image, this structure design is taken up little area, and principle structural design does not change,
Conceptual design diversification and maturity height, are able to satisfy the demand of process units enlargement.
2, coil pipe is vertically arranged in radiation chamber center by the present invention, and single row of tubes is two-sided heated, heats medium in pipe
Even property is more excellent, can solve traditional type oxygen heating furnace, and it is strong to avoid the occurrence of boiler tube side towards the fire localized heat for the heated inhomogeneities of single side
Degree is high, thus the case where the trommel generated and rupture；In addition, burner is arranged in coil pipe two sides, heat supply in furnace is realized
Stable and smoke-filling movement is evenly distributed.
3, the present invention is by being arranged reasonable heat exchange process, using the different inlet temperature of heat transferring medium, arrange water (or)
While steam preheating pipe, oxygen economizer bank are to media for heat exchange, and reduce the temperature that flue gas goes out convection cell.Flue gas passes through second level
Air preheater exchanges heat with air, and the air after temperature raising send combustion-supporting to reduce fuel consumption, raising heating furnace to burner
The whole thermal efficiency.
4, radiant coil overall weight of the invention is supported by being arranged in the upper and lower concetrated pipe of radiant coil.Due to set
Pipe is arranged outside furnace, and temperature is lower, and support construction selection can use carbon steel material, save the dosage of high-alloy steel, reduces engineering and makes
Valence.
5, radiant coil support construction of the invention is designed using " lower branch of hanging oneself " structure, makes radiant coil weight with 3:7
Ratio reasonable distribution, force structure is simple, guarantee safety, the stability of support construction, and can in the case where not blowing out,
Inspection and maintenance are carried out to support construction.Structure arrangement is succinct, and convenient for safeguarding 6, radiant coil of the invention uses " harp " shape
Formula arrangement, can multi-pipeline it is used in parallel, boiler tube and upper and lower concetrated pipe straight cutting structure design, and reduce the resistance drop generated by elbow.
To reduce system input pressure, operating cost is reduced.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the A direction view of radiant coil in Fig. 1 radiation chamber.
Wherein, 1- radiation chamber, 2- radiant coil, 3- combustion apparatus, 4- support construction, 5- hanging structure, 6- chimney, 7- pairs
Flow chamber, 8- vapor economizer bank, 9- oxygen economizer bank, 10- flue, 11- secondary air preheater, 12- air blower,
Concetrated pipe, 23- boiler tube under 13- flue gas pressure fan, 14- main air preheater, 21- upper set pipe, 22-.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 1, the present invention provides a kind of energy saving oxygen heating furnace, which includes radiation chamber 1, radiation disk
Pipe 2, combustion apparatus 3, support construction 4, hanging structure 5, chimney 6, convection cell 7, flue 10, secondary air preheater 11,
Air blower 12, flue gas pressure fan 13 and main air preheater 14.
As shown in Fig. 2, radiant coil 2 is made of upper set pipe 21, lower concetrated pipe 22 and boiler tube 23,21 He of upper set pipe
Lower concetrated pipe 22 is horizontally disposed, and boiler tube 23 is connected in side by side between upper set pipe 21 and lower concetrated pipe 22, and the both ends of boiler tube 23 are same
When connect with upper set pipe 21 and lower concetrated pipe 22.
Boiler tube 23 in radiant coil 2 is located in radiation chamber 1, and the upper end of radiant coil 2 passes through upper set pipe 21 and hanging
Structure 5 connects, and the upper end of radiant coil 2 is supported by lower concetrated pipe 22 by support construction 4.Combustion apparatus 3 is to boiler tube 23
Radiant heating is carried out, oxygen economizer bank 9 is set in the convection cell 7 of 1 top of radiation chamber, oxygen economizer bank 9 is upper with radiant coil 2
Concetrated pipe 21 is connected, and vapor economizer bank 8 is arranged in the top of oxygen economizer bank 9, injects recirculated water in vapor economizer bank 8, uses
In the temperature for reducing flue gas in convection cell 7.
Hot fume in chimney 6 is introduced secondary air preheater 11, hot cigarette by flue 10 by flue gas pressure fan 13
Gas carries out heat exchange with the surrounding air preheated by main air preheater 14 in secondary air preheater 11, and hot fume is complete
It is emptied at chimney 6 is again introduced into after heat exchange, 1 internal reference of radiation chamber is sent by air blower 12 after surrounding air completion heat exchange
With the burning of combustion apparatus.
Working principle: room temperature oxygen inputs in oxygen economizer bank 9, since oxygen economizer bank 9 is located in convection cell, often
Warm oxygen realizes preheating in oxygen economizer bank 9, and the oxygen after preheating subsequently enters in the upper set pipe 21 of radiant coil 2, on
Oxygen is diverted in boiler tube 23 arranged side by side by concetrated pipe 21, and boiler tube 23 receives the radiant heat of combustion apparatus 3, the oxygen in boiler tube 23
It is warming up to after set temperature and lower concetrated pipe 22 is pooled to by boiler tube 23 exports from inside to outside.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (4)
1. a kind of energy conservation oxygen heating furnace, which is characterized in that the heating furnace includes radiation chamber, radiant coil, combustion apparatus, support
Structure, hanging structure, chimney, convection cell and air preheating system；
The heated portion of the radiant coil is arranged in radiation chamber, the upper and lower ends of radiant coil pass through respectively hanging structure and
Support construction is supported fixation；Combustion apparatus carries out radiant heating, setting in the convection cell above radiation chamber to radiant coil
Oxygen economizer bank, oxygen economizer bank are connected with the entrance of radiant coil, and vapor economizer bank is arranged in the top of oxygen economizer bank；It is empty
Gas pre-heating system, which is realized, participates in burning using send surrounding air into radiation chamber after the hot fume preheating in chimney.
2. energy conservation oxygen heating furnace as described in claim 1, which is characterized in that the radiant coil is by upper set pipe, next part
Close pipe and boiler tube composition, upper set pipe and lower concetrated pipe are horizontally disposed, boiler tube be connected in side by side upper set pipe and lower concetrated pipe it
Between, the both ends of boiler tube connect with upper set pipe and lower concetrated pipe simultaneously.
3. energy conservation oxygen heating furnace as claimed in claim 2, which is characterized in that the air preheating system includes fume pipe
Road, secondary air preheater, air blower and main air preheater；
Hot fume in chimney is introduced secondary air preheater by flue by the flue gas pressure fan, and hot fume is in second level
The interior surrounding air with by the preheating of main air preheater of air preheater carries out heat exchange, after hot fume completion heat exchange again
The secondary chimney that enters empties, and surrounding air is sent into radiation chamber the combustion for participating in combustion apparatus by air blower after completing heat exchange
It burns.
4. energy conservation oxygen heating furnace as claimed in claim 3, which is characterized in that the hanging structure and support construction raying
The ratio between gravity of coil pipe is 3:7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087718.1A CN109780722A (en) | 2019-01-29 | 2019-01-29 | A kind of energy conservation oxygen heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910087718.1A CN109780722A (en) | 2019-01-29 | 2019-01-29 | A kind of energy conservation oxygen heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109780722A true CN109780722A (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910087718.1A Pending CN109780722A (en) | 2019-01-29 | 2019-01-29 | A kind of energy conservation oxygen heating furnace |
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| CN (1) | CN109780722A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116772407A (en) * | 2022-03-30 | 2023-09-19 | 蓝香甜 | Tubular industrial heating furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203810913U (en) * | 2014-02-17 | 2014-09-03 | 北京华福神雾工业炉有限公司 | Petrochemical-industry tubular heating furnace with regenerative burners |
| CN104696965A (en) * | 2015-03-23 | 2015-06-10 | 华东理工大学 | Straight-flow type dispersion combustion tubular heating furnace system and combustor |
| CN204848768U (en) * | 2015-06-04 | 2015-12-09 | 珠海长炼石化设备有限公司 | Petroleum production uses hydrogenation heating furnace in advance |
| CN206739882U (en) * | 2017-05-18 | 2017-12-12 | 新能能源有限公司 | A kind of new type high temperature, high pressure hydrogen heating furnace device |
| CN207585344U (en) * | 2017-11-17 | 2018-07-06 | 北京拓首能源科技股份有限公司 | A kind of energy-saving and emission-reduction gas supply-discharge system of tubular heater |
| CN210070217U (en) * | 2019-01-29 | 2020-02-14 | 北京拓首能源科技股份有限公司 | Energy-saving oxygen heating furnace |
-
2019
- 2019-01-29 CN CN201910087718.1A patent/CN109780722A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203810913U (en) * | 2014-02-17 | 2014-09-03 | 北京华福神雾工业炉有限公司 | Petrochemical-industry tubular heating furnace with regenerative burners |
| CN104696965A (en) * | 2015-03-23 | 2015-06-10 | 华东理工大学 | Straight-flow type dispersion combustion tubular heating furnace system and combustor |
| CN204848768U (en) * | 2015-06-04 | 2015-12-09 | 珠海长炼石化设备有限公司 | Petroleum production uses hydrogenation heating furnace in advance |
| CN206739882U (en) * | 2017-05-18 | 2017-12-12 | 新能能源有限公司 | A kind of new type high temperature, high pressure hydrogen heating furnace device |
| CN207585344U (en) * | 2017-11-17 | 2018-07-06 | 北京拓首能源科技股份有限公司 | A kind of energy-saving and emission-reduction gas supply-discharge system of tubular heater |
| CN210070217U (en) * | 2019-01-29 | 2020-02-14 | 北京拓首能源科技股份有限公司 | Energy-saving oxygen heating furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116772407A (en) * | 2022-03-30 | 2023-09-19 | 蓝香甜 | Tubular industrial heating furnace |
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