CN201852448U - Double-radiation-chamber overhead convection section energy-saving integrated heating furnace for producing methanol from coke-oven gas - Google Patents
Double-radiation-chamber overhead convection section energy-saving integrated heating furnace for producing methanol from coke-oven gas Download PDFInfo
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- CN201852448U CN201852448U CN2010205827234U CN201020582723U CN201852448U CN 201852448 U CN201852448 U CN 201852448U CN 2010205827234 U CN2010205827234 U CN 2010205827234U CN 201020582723 U CN201020582723 U CN 201020582723U CN 201852448 U CN201852448 U CN 201852448U
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Abstract
The utility model discloses a double-radiation-chamber overhead convection section energy-saving integrated heating furnace for producing methanol from coke-oven gas, which comprises two radiation chambers and a chimney, wherein the two radiation chambers are arranged in a furnace body, and the chimney is communicated with the radiation chambers. A steam-coke gas mixture radiation section furnace tube is arranged in each radiation chamber; a combustor is arranged at the bottom of each radiation chamber; the two radiation chambers are both in square box shapes and connected in parallel; the chimney is arranged at the top of a parallel port of the two radiation chambers; a convection chamber, an air preheater and a transitional chamber are arranged sequentially and upwardly from the parallel port of the radiation chambers in a channel between the parallel port of the radiation chambers and the chimney; an inlet of the air preheater is provided with an air blower; the steam-coke gas mixture radiation section furnace tube includes two rows of vertical tubes and a 180-degree connecting elbow; the two rows of vertical tubes are perpendicularly arrayed in the radiation chambers; the 180-degree connecting elbow is positioned at the bottom ends of the two rows of vertical tubes; an inlet branch tube and an outlet branch tube are respectively arranged at the top ends of the two rows of vertical tubes and positioned outside the radiation chambers; and the upper ends of the two rows of vertical tubes are connected with an inlet header and an outlet header by the aid of the inlet branch tube and the outlet branch tube. The double-radiation-chamber overhead convection section energy-saving integrated heating furnace is capable of simultaneously meeting the requirements of high heat efficiency, energy conservation, environmental protection, safe operation and the like.
Description
Technical field
The utility model relates to a kind of oven gas system methyl alcohol firing equipment that is used for, and relates in particular to the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of a kind of biradial chamber overhead convection section.
Background technology
Oven gas system methyl alcohol is the important behave of national energy-saving and emission-reduction strategy, adopt advanced technologies, by utilizing process of coking by-product coke furnace gas to prepare refined methanol, both reached the environmental protection purpose, can create considerable economic again, have good economic benefits and good social benefit, have popularizing value.Therefore, be applying of oven gas system methanol project, need utilize oven gas pure oxygen-steam-reforming technology and low pressure methanol synthesis technology to reach long-term stability, safety, oepration at full load.This technology comprises that oven gas Holder System, wet desulfurization system, alternating temperature absorption remove naphthalene and tar system, oven gas compressibility, the smart desulphurization system of oven gas, pure oxygen conversion system, the smart desulphurization system of reformed gas, synthesis gas compressibility, system for methanol synthesis and methanol fractionation system.Wherein, the technical process of pure oxygen conversion system is: the oven gas after the supercharging preheating, transform organic sulfur through iron-molybdic catalyst, after the absorption of ZnO desulfurizing agent, transform with part and to enter this heating furnace after mixing with middle pressure steam and be heated to and enter the reburner top about 650 ℃ again, with the mixture of oxygen after the preheating and water vapour in the burner place mixed combustion of reburner top, provide conversion reaction required heat, gas after the burning enters the reforming catalyst bed of reburner middle and lower part in the lump, and the conversion reaction of hydro carbons and steam takes place in beds.Also can produce superheated steam and preheated air in the heating process of this technology, the fuel of heating adopts methyl alcohol usually.Yet there are no the heater in the oven gas system that the is exclusively used in methyl alcohol industry of requirements such as can satisfying thermal efficiency height, energy-conserving and environment-protective, security of operation.
The utility model content
At above-mentioned prior art, the utility model provides the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of a kind of biradial chamber overhead convection section, and this heating furnace can satisfy requirements such as thermal efficiency height, energy-conserving and environment-protective, security of operation simultaneously.
In order to solve the problems of the technologies described above, the technical scheme that the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of the utility model biradial chamber overhead convection section is achieved is: comprise two radiation chambers in the body of heater and the chimney that is communicated with described radiation chamber, be provided with in the described radiation chamber and steam burnt gaseous mixture radiant coil, the bottom of described radiation chamber is provided with burner, two described radiation chambers are the square box shape radiation chamber and are relation in parallel, described chimney is arranged on the top of in parallel mouthful of two radiation chambers, and the autoradiolysis chamber upwards is provided with convection cell in parallel mouthful successively in the passage between in parallel mouthful of radiation chamber and the chimney, air preheater and transition chamber; The air preheater import is provided with air blast, described radiation chamber comprises inlet header and outlet header, the burnt gaseous mixture radiant coil of described steaming comprises that two arrange one 180 ° of connection elbows that are vertically arranged in the standpipe in the radiation chamber and are positioned at two row's standpipe bottoms, the top of described two row's standpipes is respectively and is positioned at radiation chamber outer entrance branch and outlet stool, and described entrance branch and described outlet stool connect the upper end of two row's standpipes respectively with described inlet header and described outlet header.
The comprehensive heating furnace of energy-saving oven gas system methyl alcohol of the utility model biradial chamber overhead convection section, wherein, the burnt gaseous mixture radiant coil of described steaming, entrance branch and outlet stool adopt bullet to adopt spring support hanging frame to support.Described convection cell is the convection cell of series connection more than or two.Being shaped as of described transition chamber is round table-like.Described body of heater adopts steel construction to support, and is provided with five layer operation platforms.Described air blast is two.
Compared with prior art, the beneficial effects of the utility model are:
The heating furnace thermic load is bigger, if adopt cylindrical furnace to heat same processing medium, from the investment angle, the one-time investment cost of both needs is more or less the same, but employing Heat Emission Pipe in Cylindrical Furnace scheme diameter will be very big, and the stressed and arrangement complexity of boiler tube, from aspects such as design rationality and operation conveniences, do not have square chest type heating furnace to have superiority, this will cause follow-up investment to increase, the situation that operation cost increases.In general, the large-scale plant design principle is reliable and stable, simple to operate, can reduce parking rate and interruption of service rate, therefore batch-type furnace is more superior than cylindrical furnace, once investing under the equal situation, adopting square chest type heating furnace effectively to reduce stop frequency, economic benefit will be very obvious.In addition, this heating furnace can effectively reduce heat loss by heat recovery, improves thermal efficiency of heating furnace, the energy-saving and emission-reduction create beneficial result.
Rich coal resources in China, great variety of goods.Economic model for a change traditional, extensive energy extraction is utilized the advantage and the characteristic in area, develops the coal tar industry energetically, and development of coal deep processing type economy can improve the economic worth of regions resources energetically.But many enterprises coke output that only covets is arranged at present, and tar that produces in the STRENGTH ON COKE production process and coke-stove gas do not take to reclaim control measures, traditional coking industry is seriously polluted, must resolve pollution problem when relying on resource to develop the economy.According to the measuring and calculating whole nation producing 1.4 hundred million tons in coke per year, but 42,000,000,000 meters of by-product coke furnace gases then
3, have at least at present oven gas more than 1/3 fail to be used or the simple combustion utilization after diffuse to atmosphere the environment of not only having wasted a large amount of precious resources but also severe contamination.Contain a large amount of H in the oven gas
2, CH
4With CO be the valuable raw material of synthesis of chemicals, be used as the oven gas that will diffuse and approximately can produce 7,500,000 tons of/year methyl alcohol.In order to realize sustainable development, should consider the circulation comprehensive utilization of coke-stove gas, select rationally, effectively to recycle scheme, obtain reasonable use in the hope of resource, preserve the ecological environment, make economy, society, environmental benefit reach high unity.
With regard to construction unit, as containing a certain amount of sulfide, ammonia, CO
2, harmful substances such as benzene, naphthalene and tar oven gas only after simple burning utilization, enter the atmosphere of atmosphere with the severe contamination locality, have influence on common people's life of periphery, also wasted simultaneously the energy, from the national sustainable development strategic concerns, with of the development of this part resource along with fine chemistry industry, the consumption figure of methyl alcohol will constantly increase and enlarge, and particularly the demand of refined methanol will have bigger growth.
Methyl alcohol is the basic very widely Organic Chemicals of purposes, is only second to ethene, propylene and benzene in the output of developed country, occupies the 4th.Set out by methyl alcohol and can produce many kinds of chemical products; Methyl alcohol also can be used as the energy.The methyl alcohol purposes is wide, and almost can not find another organic products has so wide scope of application of methyl alcohol.Along with the development of fine chemistry industry, the consumption figure of methyl alcohol will constantly increase and enlarge, and particularly the demand of refined methanol will have bigger growth.The rational and effective utilization is the important behave of turning waste into wealth, turning harm into good, and also is the effective way that realizes construction unit's benign development.
Description of drawings
Fig. 1 is the utility model heating furnace front sectional structure schematic diagram;
Fig. 2 is the cutaway view of A-A slice location among Fig. 1;
Fig. 3 is the cutaway view of the slice location of B-B shown in Fig. 1;
Fig. 4 is the cutaway view of the slice location of C-C shown in Fig. 1.
Among the figure:
1---radiation chamber 2---convection cell 3---air preheater
4---transition chamber 5---chimney 6---burners
7---air blast 8---spring support hanging frame
11------elbow 13---inlet headers that steam burnt gaseous mixture radiant coil 12
14---outlet header 15---entrance branch 16---outlet stools
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done to describe in further detail.
As shown in Figure 1, the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of the utility model biradial chamber overhead convection section, comprise two radiation chambers 1 in the body of heater and the chimney 5 that is communicated with described radiation chamber 1, be provided with in the described radiation chamber 1 and steam burnt gaseous mixture radiant coil 1, the bottom of described radiation chamber 1 is provided with burner 6, described burner 6 adopts low NOx environment-friendly type burner, and strict control ignition temperature reduces the NOx value in the flue gas, and the smoke evacuation index meets national requirements for environmental protection.Two described radiation chambers 1 are the square box shape radiation chamber and are relation in parallel, described chimney 5 is arranged on the top of in parallel mouthful of two radiation chambers 1, and the autoradiolysis chamber upwards is provided with convection cell 2, air preheater 3 and transition chamber 4 in parallel mouthful successively in the passage between in parallel mouthful of radiation chamber and the chimney 5; Air preheater 3 imports are provided with air blast 7, and as shown in figures 1 and 3, described convection cell 2 is the convection cell of series connection more than or two, and being shaped as of described transition chamber 4 is round table-like.As shown in Figure 1 and Figure 4, described radiation chamber 1 comprises inlet header 13 and outlet header 14, the burnt gaseous mixture radiant coil 11 of described steaming comprises that two arrange one 180 ° of connection elbows 12 that are vertically arranged in the standpipe in the radiation chamber 1 and are positioned at two row's standpipe bottoms, this two rows standpipe heating surface can increase swept area effectively, improve radianting capacity, the top of described two row's standpipes is respectively entrance branch 15 and the outlet stool 16 that is positioned at outside the radiation chamber 1, and described entrance branch 15 and described outlet stool 16 connect the upper ends of two row's standpipes respectively with described inlet header 13 and described outlet header 14.
In the heating furnace of the present utility model, because burner arrangement is in the bottom of radiation chamber 1, during burning, its flame burns vertically upward, the whole side wall of two radiation chambers 1 is reached a high temperature, form radiant wall, the burnt gaseous mixture radiant coil 1 of steaming is evenly distributed in the calorific intensity of length direction and circumferencial direction.The high-temperature flue gas that produces by burner 6 burnings heats burnt gaseous mixture radiation chamber (section) 1 of steaming and convection cell (Convective Heating section) 2, promptly, enter convection cell 2 after two radiation chamber 1 interior hot flue gases compile by the in parallel mouthful of flue of locating in radiation chamber top and carry out heat exchange, carry out waste heat recovery through air preheater 3 again, at last successively by changeover portion 4 and chimney 5 emptying.Air blast 7 preferred design have two, and one opens one is equipped with, and when operating blower fan broke down, standby fan started immediately, and when two air blasts all can not normally move, the door that blows in soon on the air channel was opened automatically, ensure normally air feed safely of heating furnace.
The liner of radiation chamber 1 adopts the refractory ceramic fibre module to be fixed by anchoring piece in the body of heater, and refractory brick is adopted in the bottom.The furnace bottom of radiation chamber adopts the composite fire lining, is formed by schamotte brick and lightweight and heavy refractory material casting.The liner high-temperature part of convection cell 2 adopts the high-alumina refractory fiber module to be fixed by anchoring piece.Proper Design is light-duty furnace lining, has good heat insulating, the characteristics that construction speed is fast.Chimney lining adopts the light weight castable refractory cast to form.The material that the utility model adopts is selected advanced, standard, meets " five change " design principle, invests low, high efficiency.The parts of heating furnace adopt modularized design, can realize the batch production making to greatest extent, reduce the on-site installation work amount, save set-up time and work on the spot amount.Heating furnace adopts steel construction to support, and five layer operation platforms is set, as shown in Figure 3.The heating furnace side wall is provided with flame and detects mouth, detects burner hearth internal combustion state at any time, and design steam fire smothering system in burner hearth, guarantees the safe operation of heating furnace.
Whole heating furnace structure compact and reasonable, furnace thermal efficiency can reach more than 90%.Because of the normal postrun operating mode of heating furnace is stable, so the control method that whole heating furnace employing Central Control Room monitoring+scene regulated is controlled.Each pipe group of heating furnace is imported and exported thermometer and Pressure gauge is set respectively, and the temperature and pressure of medium is respectively organized in monitoring at any time, and the outlet temperature situation by the radiation chamber medium is carried out manual adjustments to the burner at scene; And oxygen analyser is set at the radiation chamber exhanst gas outlet, and regulate the intake of burner by the oxygen content in the monitoring flue gas, guarantee the thermal efficiency of heating furnace.Simultaneously, heating furnace can also be provided with a series of safety interlockings.
Heating furnace of the present utility model is the part of pure oxygen conversion system.Oven gas after the supercharging preheating, transform organic sulfur through iron-molybdic catalyst, after the absorption of ZnO desulfurizing agent, transform with part and to enter this heating furnace after mixing with middle pressure steam and be heated to and enter the reburner top about 650 ℃ again, with the mixture of oxygen after the preheating and water vapour in the burner place mixed combustion of reburner top, provide conversion reaction required heat, the gas after the burning enters the reforming catalyst bed of reburner middle and lower part in the lump, and the conversion reaction of hydro carbons and steam takes place in beds.Methanol purge gas is all as this heating furnace fuel, and heating furnace also produces superheated steam and preheated air to carry out waste heat recovery except that focusing steaming gaseous mixture heats.
Although in conjunction with figure the utility model is described above; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; under the situation that does not break away from the utility model aim, can also make a lot of distortion, these all belong within the protection of the present utility model.
Claims (6)
1. the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of a biradial chamber overhead convection section, comprise two radiation chambers (1) in the body of heater and the chimney (5) that is communicated with described radiation chamber (1), be provided with in the described radiation chamber (1) and steam burnt gaseous mixture radiant coil (11), the bottom of described radiation chamber (1) is provided with burner (6), it is characterized in that
Two described radiation chambers (1) are the square box shape radiation chamber and are relation in parallel, described chimney (5) is arranged on the top of in parallel mouthful of two radiation chambers (1), and the autoradiolysis chamber upwards is provided with convection cell (2), air preheater (3) and transition chamber (4) in parallel mouthful successively in the passage between in parallel mouthful of radiation chamber and the chimney (5); Described air preheater (3) import is provided with air blast (7), described radiation chamber (1) comprises inlet header (13) and outlet header (14), the burnt gaseous mixture radiant coil of described steaming (11) comprises that two arrange one 180 ° of connection elbows (12) that are vertically arranged in the standpipe in the radiation chamber (1) and are positioned at two row's standpipe bottoms, the top of described two row's standpipes is respectively and is positioned at radiation chamber (1) outer entrance branch (15) and outlet stool (16), and described entrance branch (15) and described outlet stool (16) connect the upper end of two row's standpipes respectively with described inlet header (13) and described outlet header (14).
2. the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of biradial according to claim 1 chamber overhead convection section, it is characterized in that the burnt gaseous mixture radiant coil of described steaming (11), entrance branch (15) and outlet stool (16) adopt spring support hanging frame (8) to support.
3. the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of biradial according to claim 1 chamber overhead convection section is characterized in that, described convection cell (2) is the convection cell of series connection more than or two.
4. the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of biradial according to claim 1 chamber overhead convection section is characterized in that being shaped as of described transition chamber (4) is round table-like.
5. the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of biradial according to claim 1 chamber overhead convection section is characterized in that, described body of heater adopts steel construction to support, and is provided with five layer operation platforms.
6. the comprehensive heating furnace of energy-saving oven gas system methyl alcohol of biradial according to claim 1 chamber overhead convection section is characterized in that described air blast (7) is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827234U CN201852448U (en) | 2010-10-29 | 2010-10-29 | Double-radiation-chamber overhead convection section energy-saving integrated heating furnace for producing methanol from coke-oven gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205827234U CN201852448U (en) | 2010-10-29 | 2010-10-29 | Double-radiation-chamber overhead convection section energy-saving integrated heating furnace for producing methanol from coke-oven gas |
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| CN201852448U true CN201852448U (en) | 2011-06-01 |
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| CN2010205827234U Expired - Lifetime CN201852448U (en) | 2010-10-29 | 2010-10-29 | Double-radiation-chamber overhead convection section energy-saving integrated heating furnace for producing methanol from coke-oven gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878807A (en) * | 2011-07-11 | 2013-01-16 | 中国石油化工股份有限公司 | Flame heating furnace |
| CN106643161A (en) * | 2017-01-24 | 2017-05-10 | 碧海舟（北京）节能环保装备有限公司 | Heating furnace device |
| CN108240766A (en) * | 2016-12-23 | 2018-07-03 | 中国石化工程建设有限公司 | Reforming furnace |
-
2010
- 2010-10-29 CN CN2010205827234U patent/CN201852448U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878807A (en) * | 2011-07-11 | 2013-01-16 | 中国石油化工股份有限公司 | Flame heating furnace |
| CN108240766A (en) * | 2016-12-23 | 2018-07-03 | 中国石化工程建设有限公司 | Reforming furnace |
| CN108240766B (en) * | 2016-12-23 | 2019-10-29 | 中国石化工程建设有限公司 | Reforming furnace |
| CN106643161A (en) * | 2017-01-24 | 2017-05-10 | 碧海舟（北京）节能环保装备有限公司 | Heating furnace device |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |
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| CX01 | Expiry of patent term |