CN203052699U - Membrane method oxygen-enriched combustion-supporting system and industrial furnace applying same - Google Patents
Membrane method oxygen-enriched combustion-supporting system and industrial furnace applying same Download PDFInfo
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- CN203052699U CN203052699U CN2012206321712U CN201220632171U CN203052699U CN 203052699 U CN203052699 U CN 203052699U CN 2012206321712 U CN2012206321712 U CN 2012206321712U CN 201220632171 U CN201220632171 U CN 201220632171U CN 203052699 U CN203052699 U CN 203052699U
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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
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Abstract
The utility model discloses a membrane method local oxygen-enriched combustion-supporting system, which comprises a filter, a ventilator, an oxygen-enriched membrane device, a water ring type vacuum pump, an air-water separation device, a dehumidification device, a pressurization and pressure stabilization device, a primary pre-heating device, a pre-heating device and an oxygen-enriched burner with a specific structure. The air enters the ventilator after being filtered by the filter to be separated by the oxygen-enriched membrane device, the oxygen-enriched air is exhausted into the air-water separation device through the water ring type vacuum pump, the oxygen-enriched air with water vapor separated out enters the dehumidification device, after dehumidification and drying, the oxygen-enriched air enters the pressurization and pressure stabilization device and then enters into the primary pre-heating device with a certain pressure, the smoke exhausted by an industrial furnace is utilized to carry out pre-heating, then the oxygen-enriched air enters the pre-heating device to be heated into a set temperature, and finally the oxygen-enriched air passes through the oxygen-enriched burner to be delivered to the industrial furnace to carry out combustion supporting.
Description
Technical field
The utility model relates to a kind of combustion-supporting system that is applied to industrial furnaces such as fuel oil, combustion gas and fire coal, and the industrial furnace of using this system.
Background technology
China's overwhelming majority industrial furnace still adopts air-breathing at present, and this has caused the significant wastage of the energy.The oxygen-enriched combustion-supporting technology has burning-point, promotion burning complete, minimizing CO, the NO of raising flame temperature, reduction fuel because of it
xAdvantages such as discharging have obtained extensive use in recent years abroad.
Membrane oxygen enrichment technology is the principle according to the polymer compound film infiltration, utilize the infiltration rate difference of each component in the air, make that oxygen and nitrogen molecular see through oxygen permeable membrane in the air under pressure differential drives, because the characteristic of oxygen permeable membrane is that oxygen molecule is bigger than nitrogen molecular transmitance, collect oxygen-enriched air in film at low pressure one side, the oxygen-enriched content of collecting in the gas of back is 25%～32%.
Though domestic existing film oxygen enriching combustion supporting technology is applied among the actual production practices, yet its energy-saving effect also is not very desirable.The utility model people is engaged in the combustion-supporting research of film oxygen enriching of industrial furnace for many years, provide a kind of new film oxygen enriching combustion-supporting system at this, in actual production, can provide the energy-saving effect of industrial furnace with this system applies greatly, more outstanding characteristics are that system can move for a long time reposefully.
Summary of the invention
The purpose of this utility model is the industrial furnace that a kind of film oxygen enriching combustion-supporting system is provided and uses this system.
The utility model provides:
A kind of film oxygen enriching combustion-supporting system is characterized in that, comprising:
Filter 1: band drier filter core is connected with ventilation blower 2;
Ventilation blower 2: export pipeline is connected to oxygen permeable membrane device 3;
Oxygen permeable membrane device 3;
Water-ring vacuum pump 4: comprise vacuum control check valve, control valve, vacuum meter, vavuum pump and water loop control, the oxygen-enriched air of oxygen permeable membrane device 3 outlet enters vavuum pump after through vacuum control check valve, control valve, vacuum meter, and enters gas and water separator 5 after vacuumizing through vavuum pump;
Gas and water separator 5;
Supercharging stable-pressure device 8;
Preliminary preheating device 9: as heated air, oxygen-enriched air is preheated with the industrial furnace discharged flue gas;
Preheating device 10: regulate oxygen-enriched air and reach steady temperature;
Oxygen-enriched burner 11: in the access industrial stove 12;
Wherein oxygen-enriched burner 11 possesses following structure: gas nozzle 111 centered by the central point, periphery n the oxygen-enriched air nozzle 112 that evenly distribute, outside evenly distribution n periphery gas nozzle 113 again, the oxygen-enriched air nozzle is identical with periphery gas nozzle number, and each periphery gas nozzle becomes isosceles triangle with immediate two oxygen-enriched air nozzles, wherein n is 3-7, is preferably 5;
Air filters laggard ventilation blower 2 through filter 1, separate through oxygen permeable membrane device 3 then, obtain oxygen-enriched air, oxygen-enriched air enters gas and water separator 5 through water-ring vacuum pump 4, the oxygen-enriched air of isolating behind the steam enters dehumidifying device 6, after the dehumidification drying, enter supercharging stable-pressure device 8, enter preliminary preheating device 9 with certain pressure then, utilize the industrial furnace discharged flue gas to preheat, yet enter the temperature that preheating device 10 is heated to setting, last oxygen-enriched air is delivered to industrial furnace by oxygen-enriched burner 11 and is carried out combustion-supporting.
Above-mentioned film oxygen enriching combustion-supporting system, preferred oxygen-enriched burner possesses structure shown in Figure 3.
Above-mentioned film oxygen enriching combustion-supporting system, preferably between dehumidifying device 6 and supercharging stable-pressure device 8, also comprise an oxygen concentration regulating system 7, oxygen concentration regulating system 7 comprises oxygen-enriched air import 71, air intlet 72, proportioning valve 73, oxygen concentration sensor 74, single-chip microcomputer 75 and displacement transducer 76, oxygen concentration sensor 74 is positioned near the oxygen enrichment nozzle, the oxygen-enriched air of constant oxygen concentration comes out to enter oxygen concentration regulating system 7 by dehumidifying device 6, enters supercharging stable-pressure device 8 behind the combustion case adjusting oxygen concentration according to monitoring then.
Wherein the operation principle of oxygen concentration regulating system 7 is: the oxygen concentration value that oxygen concentration sensor 74 was measured when at first the burning optimum state was determined in debugging, secondly be setting value with this oxygen concentration value, regulate the oxygen concentration that is delivered to the oxygen-enriched air in the stove with the difference of this setting value and the oxygen concentration sensor 74 actual oxygen concentration values that record then.Oxygen concentration regulating system 7 preferred linear regulation.
In the above-mentioned film oxygen enriching combustion-supporting system, drier is preferably discolour silica gel and molecular sieve in the drier filter core.
Oxygen permeable membrane device 3 can be selected existing rolled film combination or the micro-film combination of hollow air separation oxygen-enriching device for use.
Gas and water separator 5 can be selected existing centrifugal or silk screen moisture trap for use.
Dehumidifying device 6 can be selected existing freezing or absorption method moisture eliminator for use.
Supercharging stable-pressure device 8 can be selected the existing vacuum tank that saves up strength for use.
Preheating device 10 can be selected existing resistance heater for use.
Above-mentioned film oxygen enriching combustion-supporting system, preferred oxygen-enriched air is 130 ℃ after preheating device 10 preheatings.
The utility model also provides:
Industrial furnace, it comprises film oxygen enriching combustion-supporting system described in the utility model.Boiler, heating furnace, incinerator, smelting furnace, the Gas-making Furnace of the combustion gas of described industrial furnace preferred burn.
Adopt the oxygen-enriched burner of ad hoc structure in the utility model, therefore more be conducive to the abundant burning of fuel, more existing similar combustion-supporting system is saved the energy more than 5%.
The oxygen concentration regulating system can be adjusted oxygen concentration according to fuel gas buring situation in the stove of oxygen concentration sensor detection in the utility model.The oxygen concentration regulating system changes the oxygen concentration that is delivered to the oxygen-enriched air in the stove according to the Actual combustion situation, and need not to regulate the oxygen concentration of the oxygen-enriched air that the oxygen permeable membrane device produces, it can keep the power invariability of ventilation blower, oxygen permeable membrane device, water-ring vacuum pump, gas and water separator and dehumidifying device, therefore is conducive to oxygen-enriched combustion-supporting system long-time steady operation.
Set two step preheating schemes in the utility model, as heated air, it can save the energy more than 10% to preliminary preheating device with the industrial furnace discharged flue gas.And preheating device can make oxygen-enriched air reach stationary temperature, and this is conducive to burning and steadily carries out fully.
The industrial furnace of using the utility model film oxygen enriching combustion-supporting system can be energy-conservation more than 20%, and can significantly reduce CO, NO
xThe discharging of toxic and harmfuls such as discharging, and industrial furnace stable operation for a long time.
Description of drawings
Be described in further detail with the utility model of embodiment with reference to the accompanying drawings below.
Fig. 1, the 2nd, the structure chart of the described film oxygen enriching combustion-supporting system of the utility model specific embodiment;
Fig. 3 is the structure chart of the utility model oxygen concentration adjusting device 7;
Fig. 4 is the structure chart of the utility model oxygen-enriched burner 11.
Among the figure: 1, filter 2, ventilation blower 3, oxygen permeable membrane device 4, water-ring vacuum pump 5, gas and water separator 6, dehumidifying device 7, oxygen concentration regulating system 8, supercharging stable-pressure device 9, preliminary preheating device 10, preheating device 11, oxygen-enriched burner 12, industrial furnace 71, oxygen-enriched air import 72, air intlet 73, proportioning valve 74, oxygen concentration sensor 75, single-chip microcomputer 76, displacement transducer 111, center gas nozzle 112, oxygen-enriched air nozzle 113, the periphery gas nozzle
The specific embodiment
As shown in Figure 1, the local oxygen-enriched combustion-supporting of a kind of embrane method system comprises:
Filter 1: band drier filter core (drier is discolour silica gel and molecular sieve), be connected with ventilation blower, choose filtration parameter according to ventilation, relevant index is: the dust of＞0.5 μ is removed rate greater than 99.9%, hydrocarbon is removed rate greater than 90%, and water is removed rate greater than 98%, resistance＜0.3KPa;
Ventilation blower 2: export pipeline is connected to the oxygen permeable membrane device, and total head is about 9-15 times of oxygen-enriched air amount for the 2-3KPa. air quantity;
Oxygen permeable membrane device 3: adopt rolled film combination air separation oxygen-enriching device, mainly all join case, rolled membrane module, vacuum divider and shell by air and form;
Water-ring vacuum pump 4: comprise vacuum control check valve, control valve, vacuum meter, vavuum pump and water loop control, the oxygen-enriched air of oxygen permeable membrane device outlet enters vavuum pump after through vacuum control check valve, control valve, vacuum meter, and enters gas and water separator after vacuumizing through vavuum pump;
Gas and water separator 5: adopt the silk screen moisture trap.
Dehumidifying device 6: adopt the freezing moisture eliminator;
Supercharging stable-pressure device 8: adopt the gas boosting stabilized pressure pump;
Preliminary preheating device 9: adopt plate air preheater,, as heated air oxygen-enriched air is preheated with the industrial furnace discharged flue gas, reduce energy waste;
Preheating device 10: adopt oily heating agent device, the heating oxygen-enriched air is to steady temperature, as 130 ℃;
Oxygen-enriched burner 11: be structure shown in Figure 3, insert in the stove 12.
Air filters laggard ventilation blower 2 through filter 1, separates through oxygen permeable membrane device 3 then, obtains oxygen-enriched air; Oxygen-enriched air enters gas and water separator 5 through water-ring vacuum pump 4, the oxygen-enriched air of isolating behind the steam enters dehumidifying device 6, after the dehumidification drying, enter supercharging stable-pressure device 8, enter preliminary preheating device 9 with certain pressure then, utilize the industrial furnace discharged flue gas to preheat, yet enter the temperature that preheating device 10 is heated to setting, last oxygen-enriched air is delivered to industrial furnace by oxygen-enriched burner 11 and is carried out combustion-supporting.
As shown in Figure 2, the local oxygen-enriched combustion-supporting of a kind of embrane method system comprises:
Filter 1: band drier filter core (drier is discolour silica gel and molecular sieve), be connected with ventilation blower, choose filtration parameter according to ventilation, relevant index is: the dust of＞0.5 μ is removed rate greater than 99.9%, hydrocarbon is removed rate greater than 90%, and water is removed rate greater than 98%, resistance＜0.3KPa;
Ventilation blower 2: export pipeline is connected to the oxygen permeable membrane device, and total head is about 9-15 times of oxygen-enriched air amount for the 2-3KPa. air quantity;
Oxygen permeable membrane device 3: adopt rolled film combination air separation oxygen-enriching device, mainly all join case, rolled membrane module, vacuum divider and shell by air and forms, control that oxygen content is steady state value in the oxygen-enriched air that enters the oxygen concentration regulating system, as 31%;
Water-ring vacuum pump 4: comprise vacuum control check valve, control valve, vacuum meter, vavuum pump and water loop control, the oxygen-enriched air of oxygen permeable membrane device outlet enters vavuum pump after through vacuum control check valve, control valve, vacuum meter, and enters gas and water separator after vacuumizing through vavuum pump;
Gas and water separator 5: adopt centrifugal moisture trap;
Dehumidifying device 6: adopt the absorption method moisture eliminator;
Oxygen concentration regulating system 7: comprise oxygen-enriched air import 71, air intlet 72, proportioning valve 73, oxygen concentration sensor 74, single-chip microcomputer 75 and displacement transducer 76, oxygen concentration sensor 74 is positioned near the oxygen enrichment nozzle, its operation principle is: the oxygen concentration value that oxygen concentration sensor 74 was measured when at first the burning optimum state was determined in debugging, as 27%, secondly be setting value with this oxygen concentration value, regulate the oxygen concentration that is delivered to the oxygen-enriched air in the stove with the difference of this setting value and the oxygen concentration sensor 74 actual oxygen concentration values that record at last;
Supercharging stable-pressure device 8: adopt the gas boosting stabilized pressure pump;
Preliminary preheating device 9: adopt plate air preheater,, as heated air oxygen-enriched air is preheated with the industrial furnace discharged flue gas, reduce energy waste;
Preheating device 10: adopt oily heating agent device, the heating oxygen-enriched air is to steady temperature, as 130 ℃;
Oxygen-enriched burner 11: be structure shown in Figure 3, insert in the stove 12.
Air filters laggard ventilation blower 2 through filter 1, separates through oxygen permeable membrane device 3 then, obtains oxygen-enriched air; Oxygen-enriched air enters gas and water separator 5 through water-ring vacuum pump 4, the oxygen-enriched air of isolating behind the steam enters dehumidifying device 6, after the dehumidification drying, enter oxygen concentration adjusting device 7, then enter supercharging stable-pressure device 8, enter preliminary preheating device 9 with certain pressure then, utilize the industrial furnace discharged flue gas to preheat, yet enter the temperature that preheating device 10 is heated to setting, last oxygen-enriched air is delivered to industrial furnace by oxygen-enriched burner 11 and is carried out combustion-supporting.
Person skilled in the art should be familiar with, the above embodiment illustrates the purpose of this utility model, and be not with opposing restriction of the present utility model, as long as in essential scope of the present utility model, variation, modification that above-described embodiment is done all will drop in the claim scope of the present utility model.
Claims (4)
1. the local oxygen-enriched combustion-supporting of embrane method system is characterized in that comprising:
Filter (1): band drier filter core, be connected with ventilation blower, choose filtration parameter according to ventilation, relevant index is: the dust of＞0.5 μ is removed rate greater than 99.9%, hydrocarbon is removed rate greater than 90%, water is removed rate greater than 98%, resistance＜0.3KPa, and wherein drier is discolour silica gel and molecular sieve;
Ventilation blower (2): export pipeline is connected to the oxygen permeable membrane device, and total head is about 9-15 times of oxygen-enriched air amount for the 2-3KPa. air quantity;
Oxygen permeable membrane device (3): adopt rolled film combination air separation oxygen-enriching device, mainly all join case, rolled membrane module, vacuum divider and shell by air and form;
Water-ring vacuum pump (4): comprise vacuum control check valve, control valve, vacuum meter, vavuum pump and water loop control, the oxygen-enriched air of oxygen permeable membrane device outlet enters vavuum pump after through vacuum control check valve, control valve, vacuum meter, and enters gas and water separator after vacuumizing through vavuum pump;
Gas and water separator (5): adopt the silk screen moisture trap;
Dehumidifying device (6): adopt the freezing moisture eliminator;
Supercharging stable-pressure device (8): adopt the gas boosting stabilized pressure pump;
Preliminary preheating device (9): adopt plate air preheater,, as heated air oxygen-enriched air is preheated with the industrial furnace discharged flue gas, reduce energy waste;
Preheating device (10): adopt oily heating agent device, the heating oxygen-enriched air is to 130 ℃ of steady temperatures;
Oxygen-enriched burner (11): insert in the stove (12),
Wherein oxygen-enriched burner (11) possesses following structure: gas nozzle centered by the central point (111), periphery n the oxygen-enriched air nozzle (112) that evenly distribute, outside evenly distribution n periphery gas nozzle (113) again, the oxygen-enriched air nozzle is identical with periphery gas nozzle number, and each periphery gas nozzle becomes isosceles triangle with immediate two oxygen-enriched air nozzles, and wherein n is 3-7;
Air filters laggard ventilation blower (2) through filter (1), separates through oxygen permeable membrane device (3) then, obtains oxygen-enriched air; Oxygen-enriched air enters gas and water separator (5) through water-ring vacuum pump (4), the oxygen-enriched air of isolating behind the steam enters dehumidifying device (6), after the dehumidification drying, enter supercharging stable-pressure device (8), enter preliminary preheating device (9) with certain pressure then, utilize the industrial furnace discharged flue gas to preheat, yet enter the temperature that preheating device (10) is heated to setting, last oxygen-enriched air is delivered to industrial furnace by oxygen-enriched burner (11) and is carried out combustion-supporting.
2. the local oxygen-enriched combustion-supporting of embrane method system is characterized in that comprising:
Filter (1): band drier filter core, be connected with ventilation blower, choose filtration parameter according to ventilation, relevant index is: the dust of＞0.5 μ is removed rate greater than 99.9%, hydrocarbon is removed rate greater than 90%, water is removed rate greater than 98%, resistance＜0.3KPa, and wherein drier is discolour silica gel and molecular sieve;
Ventilation blower (2): export pipeline is connected to the oxygen permeable membrane device, and total head is about 9-15 times of oxygen-enriched air amount for the 2-3KPa. air quantity;
Oxygen permeable membrane device (3): adopt rolled film combination air separation oxygen-enriching device, mainly all join case, rolled membrane module, vacuum divider and shell by air and forms, control that oxygen content is steady state value 31% in the oxygen-enriched air that enters the oxygen concentration regulating system;
Water-ring vacuum pump (4): comprise vacuum control check valve, control valve, vacuum meter, vavuum pump and water loop control, the oxygen-enriched air of oxygen permeable membrane device outlet enters vavuum pump after through vacuum control check valve, control valve, vacuum meter, and enters gas and water separator after vacuumizing through vavuum pump;
Gas and water separator (5): adopt centrifugal moisture trap;
Dehumidifying device (6): adopt the absorption method moisture eliminator;
Oxygen concentration regulating system (7): comprise oxygen-enriched air import (71), air intlet (72), proportioning valve (73), oxygen concentration sensor (74), single-chip microcomputer (75) and displacement transducer (76), oxygen concentration sensor (74) is positioned near the oxygen enrichment nozzle, its operation principle is: the oxygen concentration value 27% that oxygen concentration sensor (74) was measured when at first the burning optimum state was determined in debugging, secondly be setting value with this oxygen concentration value, regulate the oxygen concentration that is delivered to the oxygen-enriched air in the stove with the difference of this setting value and the actual oxygen concentration value that records of oxygen concentration sensor (74) at last;
Supercharging stable-pressure device (8): adopt the gas boosting stabilized pressure pump;
Preliminary preheating device (9): adopt plate air preheater,, as heated air oxygen-enriched air is preheated with the industrial furnace discharged flue gas, reduce energy waste;
Preheating device (10): adopt oily heating agent device, the heating oxygen-enriched air is to 130 ℃ of steady temperatures;
Oxygen-enriched burner (11): insert in the stove (12),
Air filters laggard ventilation blower (2) through filter (1), separates through oxygen permeable membrane device (3) then, obtains oxygen-enriched air; Oxygen-enriched air enters gas and water separator (5) through water-ring vacuum pump (4), the oxygen-enriched air of isolating behind the steam enters dehumidifying device (6), after the dehumidification drying, enter oxygen concentration adjusting device (7), then enter supercharging stable-pressure device (8), enter preliminary preheating device (9) with certain pressure then, utilize the industrial furnace discharged flue gas to preheat, yet enter the temperature that preheating device (10) is heated to setting, last oxygen-enriched air is delivered to industrial furnace by oxygen-enriched burner (11) and is carried out combustion-supporting.
3. industrial furnace is characterized in that comprising claim 1 or 2 described film oxygen enriching combustion-supporting systems.
4. industrial furnace according to claim 3 is characterized in that boiler, heating furnace, incinerator, smelting furnace, the Gas-making Furnace of the combustion gas of described industrial furnace preferred burn.
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| CN2012206321712U CN203052699U (en) | 2012-11-27 | 2012-11-27 | Membrane method oxygen-enriched combustion-supporting system and industrial furnace applying same |
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| CN2012206321712U CN203052699U (en) | 2012-11-27 | 2012-11-27 | Membrane method oxygen-enriched combustion-supporting system and industrial furnace applying same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964387A (en) * | 2014-05-12 | 2014-08-06 | 河南嘉和节能科技有限公司 | Controllable low pressure membrane method oxygen enrichment device |
| CN113339785A (en) * | 2020-02-18 | 2021-09-03 | 上海电力大学 | Oxygen-enriched combustion system of coal-fired power plant |
-
2012
- 2012-11-27 CN CN2012206321712U patent/CN203052699U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103964387A (en) * | 2014-05-12 | 2014-08-06 | 河南嘉和节能科技有限公司 | Controllable low pressure membrane method oxygen enrichment device |
| CN113339785A (en) * | 2020-02-18 | 2021-09-03 | 上海电力大学 | Oxygen-enriched combustion system of coal-fired power plant |
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Granted publication date: 20130710 Termination date: 20151127 |