CN101245911A - Gas type steam superheating device - Google Patents
Gas type steam superheating device Download PDFInfo
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- CN101245911A CN101245911A CNA2007100801230A CN200710080123A CN101245911A CN 101245911 A CN101245911 A CN 101245911A CN A2007100801230 A CNA2007100801230 A CN A2007100801230A CN 200710080123 A CN200710080123 A CN 200710080123A CN 101245911 A CN101245911 A CN 101245911A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The invention relates to a gas typed steam overheat device suitable for the recovery and utilization of the waste heat of enterprises, comprising a steam filer (1), a flue gas-steam heat exchanger (4), a flue gas generation device (6) and a burner (10). The fuel gas and combustion air are mixed in the burner (10) and are burned in a combustion chamber (9) of the flue gas generation device (6) so as to generate high-temperature flue gas to enter the mixed chamber (7) of the flue gas generation device (6); cold air enters the mixed chamber (7) so as to cool the high temperature flue gas mixture and then enters the flue gas-steam heat exchanger (4); a fire retaining wall (8) is arranged between the combustion chamber (9) and the mixed chamber (7). The saturated steam is delivered to the flue gas-steam heat exchanger (4) by the steam filter (1) and is output after being heated into overheat steam. The gas typed steam overheat device has low requirement to the material and long service life, can take a low heat value gas of the by-products of the enterprises as the fuel; furthermore, the combustion is stable, the generated steam has good quality, the delivery distance can be increased, and the application range of the waste heat steam can be enlarged.
Description
Technical field
The present invention relates to a kind of steam superheating device, particularly relate to a kind of gas type steam superheating device that utilizes fuel gas with low heat value saturated vapor to be heated to be superheated steam.
Background technology
At present, the waste heat of domestic high energy-consuming enterprises general using flue gas or material produces low-pressure saturated steam, and is energy-saving and cost-reducing with recovery waste heat, improves the overall economic efficiency of enterprise.But because general UTILIZATION OF VESIDUAL HEAT IN equipment generation is saturated vapor, limited the user scope of this steam, also influenced the further raising of its economic benefit.
Adopt the converter flue evaporated cooling system as steel plant's converter system, reclaimed the waste heat of converter gas effectively, a large amount of saturated vapors that produced mainly by storage heater input plant area low-pressure steam pipe network, are used for heating and life heat supply.But because the limited and seasonal effect of low pressure life user's thermic load causes a large amount of afterheat steams to be discharged, especially in summer, utilization rate of waste heat is very low.
Simultaneously, because the steam that utilizes waste heat of plant to produce mostly is saturated vapor, transfer pipeline is bigger along the journey vapour losses, and its fed distance is restricted, and this also is the steam that influence generation of UTILIZATION OF VESIDUAL HEAT IN equipment one of the factor that is used effectively.
Can be with low-pressure saturated steam Overheating Treatment in addition? both its fed distance can be prolonged, the low-pressure steam user scope can be expanded again.Can make low-pressure steam obtain fully effectively utilizing like this, further improve economic benefit of enterprises.
Our invention problem that Here it is, it is overheated to be about to low-pressure steam.
As in steel plant, utilize its byproduct fuel gas with low heat value, after being heated to be superheated steam, the saturated vapor that the converter flue evaporated cooling system is produced by the low-pressure steam superheater just can be used for equipment for vacuum refining.Not only improved the recovery utilization rate of saturated vapor, accomplished to use nearby, also can reduce and build the investment that produces superheated steam equipment and reduce the high heating value energy resource consumption.Be very beneficial for the energy-saving and cost-reducing and environmental protection of enterprise.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing heat recovery device exists, and provide a kind of gas type steam superheating device of new structure, technical problem to be solved is the heat loss that reduces in the steam course of conveying, increase the fed distance of afterheat steam, the range of application of expansion afterheat steam, thus make waste heat obtain more fully effectively utilizing.
Another object of the present invention is to, a kind of gas type steam superheating device is provided, technical problem to be solved is to improve the clean level of steam, reduces heat exchanging device Corrosion of Metallic Materials and fouling, thereby is suitable for practicality more.
A further object of the present invention is, a kind of gas type steam superheating device is provided, and technical problem to be solved is to improve the structure of combustion chamber, improves chamber temperature, makes fuel gas with low heat value be able to smooth combustion.
An also purpose of the present invention is, a kind of gas type steam superheating device is provided, and technical problem to be solved is to reduce the flue-gas temperature that enters heat exchanger, to reduce the requirement of heat exchanging equipment matter, increases the service life, and has the value on the industry.
The object of the invention to solve the technical problems is to adopt following technical scheme to realize:
Gas type steam superheating device of the present invention, comprise flue gas-vapor heat exchanger, flue gas generating means and burner, the smoke inlet of described flue gas-vapor heat exchanger is connected with the outlet of described flue gas generating means, the exhanst gas outlet of described flue gas-vapor heat exchanger is connected to chimney, the outlet of described burner is connected to the burner interface of described flue gas generating means, combustion gas inserts the fuel gas inlet of described burner, and combustion air inserts the combustion air inlet of described burner;
Gas type steam superheating device of the present invention also comprises a steam filter, the inlet of described steam filter is connected with the saturated vapor source, the outlet of described steam filter is connected to the steam inlet of described flue gas-vapor heat exchanger by the saturated vapor pipeline, and the steam (vapor) outlet of described flue gas-vapor heat exchanger is connected with superheat steam pipeline;
Described flue gas generating means is provided with the mixing wind inlet that is connected with the mixing air source.
The object of the invention to solve the technical problems can also be further achieved by the following technical measures:
Aforesaid gas type steam superheating device, flue gas generating means wherein is made up of combustion chamber and mixing chamber, and described burner interface is positioned at an end of described combustion chamber, and the other end of described combustion chamber is connected and is communicated with described mixing chamber; On described mixing chamber, enter the mouth near having the described wind that mixes with the junction of described combustion chamber; On described mixing chamber, have described outlet away from junction with described combustion chamber.
Aforesaid gas type steam superheating device, the combustion chamber wherein and the junction of mixing chamber are provided with firebreak, have equally distributed hole on the described firebreak.
The present invention compared with prior art has tangible advantage and beneficial effect.It has following advantage at least:
1, the gas type steam superheating device of the present invention saturated vapor that will utilize the waste heat of production process to produce changes superheated steam into, can increase fed distance, and the range of application of expansion afterheat steam is not only applicable to heating for residential area, but instead of part industrial steam also.
2, gas type steam superheating device of the present invention owing to adopt steam filter to the saturated vapor preliminary treatment, is removed impurity such as saturation water, salt, has improved steam quality, reduces Corrosion of Metallic Materials and fouling, increases the service life.
3, gas type steam superheating device of the present invention owing to adopted firebreak in the combustion chamber, has effectively improved the temperature of combustion chamber, can adopt fuel gas with low heat value fuel and keeps enough flameholding degree.
4, the flue gas that burning is produced of gas type steam superheating device of the present invention mixes an amount of cold air in mixing chamber, suitably reduces the flue-gas temperature that enters flue gas-vapor heat exchanger, can reduce the requirement of heat exchanging device metal material, thereby reduces material cost.
5, gas type steam superheating device of the present invention is applied in the high energy consumption enterprises such as metallurgy, chemical industry, can significantly reduce energy consumption, meet the required of industry development, and disclosed structure is unprecedented innovative design, it had not both seen any publication, did not see more that before application that identical architectural feature is arranged is known, formerly public, and did not also see that on the market similar products like is arranged, promptly in like product, there is no similar structural design and published or use, and had novelty really.
6, gas type steam superheating device of the present invention compared with prior art, being far from existing residual heat using device can compare, its unique inventive concept has outstanding substantive distinguishing features and significant technological progress, and has the multinomial effect of enhancement, and creative really.
7, gas type steam superheating device of the present invention is simple in structure, and is less demanding to material, and overall investment is few, and energy-saving benefit is remarkable, and has practicality really.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the heat flow diagrams of gas type steam superheating device of the present invention;
Fig. 2 is the structure cutaway view of the flue gas generating means of gas type steam superheating device of the present invention;
Fig. 3 is the front view of the firebreak of gas type steam superheating device of the present invention;
Fig. 4 is that the A-A of firebreak shown in Figure 3 is to cutaway view.
The specific embodiment
As shown in Figure 1, the gas type steam superheating device of preferred embodiment of the present invention is made up of steam filter 1, saturated vapor pipeline 2, chimney 3, flue gas-vapor heat exchanger 4, superheat steam pipeline 5, flue gas generating means 6, burner 10, gas pipeline 11, mixing blower fan 12, mixing airduct road 121, combustion fan 13 and combustion air pipeline 131.
Saturated vapor at first enters steam filter 1 from the inlet 11 of steam filter 1, export from the outlet 12 of steam filter 1 through the saturated vapor of removing saturation water and impurity, be delivered to the steam inlet 41 of flue gas-vapor heat exchanger 4 through saturated vapor pipeline 2, saturated vapor is heated in flue gas-vapor heat exchanger 4 and is converted to steam (vapor) outlet 42 outputs of superheated steam from flue gas-vapor heat exchanger 4, is delivered to the user through overheated steam pipe road 5.
Combustion gas is delivered to the fuel inlet 101 of burner 10 through gas pipeline 11, and combustion air is driven by combustion fan 13, is delivered to the combustion air inlet 102 of burner 10 through combustion air pipeline 131.Combustion gas mixes with combustion air in burner 10, exports flue gas generating means 6 to.
As shown in Figure 2, flue gas generating means 6 is divided into combustion chamber 9 and mixing chamber 7 two parts, and the centre is cut apart with porous firebreak 8.Combustion gas and combustion air mix the back and enter combustion chamber 9 by burner interface 91 and fully burn in burner 10, the high-temperature fuel gas of generation enters mixing chamber 7 by porous firebreak 8.Combustion chamber 9 is the pressure-fired insulated combustion chamber, can improve the amount of stored heat of combustion chamber, make the flue gas in the combustion chamber remain higher temperature, improved the fuel gas with low heat value ignition condition, improved the stability of fuel gas with low heat value burning, made the fuel gas with low heat value burning that the variation of load is had stronger adaptability simultaneously.Porous firebreak 8 is set guarantees that high-temperature flue gas flows to flue gas mixing-chamber, avoid cold air to blow back into the combustion chamber and reduce combustion zone temperature, can effectively reduce the external heat radiation of combustion chamber, guarantee fuel gas with low heat value smooth combustion.
Flue-gas temperature is more than 1000 ℃ in the combustion chamber 8, and the flue gas of high-temperature directly enters flue gas-vapor heat exchanger 4 like this, and the material of flue gas-vapor heat exchanger 4 and connection flue is had relatively high expectations, and manufacturing cost significantly improves, and operation is got up also not too safe.Steam generally only needs 20～30 ℃ the degree of superheat on the other hand, do not require the temperature that reaches very high, so be provided with flue gas mixing-chamber 7 at combustor exit, cold air drives by mixing blower fan 12, through mixing the mixing wind inlet 71 that airduct road 121 is delivered to mixing chamber 7, in mixing chamber 7 high-temperature flue gas is mixed cold air, the mixed flue gas temperature is reduced to about 450 ℃, thereby the reduction equipment manufacturing cost prolongs equipment life, the security and the reliability of the operation of raising equipment.By adjusting the setting value of mixing chamber flue-gas temperature, also can play the purpose of adjusting load.
The outlet 72 of mixing chamber 7 connects the smoke inlet 43 of flue gas-vapor heat exchangers 4, and the exhanst gas outlet 44 of flue gas-vapor heat exchanger 4 connects chimneys 3, and mixed flue gas is from mixing chamber 7 outputs, enter 4 pairs of Steam Heating coolings of flue gas-vapor heat exchanger after, discharge through chimney 3.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art are not in breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention,, all still belong in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (3)
1. gas type steam superheating device is characterized in that:
Described gas type steam superheating device comprises flue gas-vapor heat exchanger (4), flue gas generating means (6) and burner (10), the smoke inlet (43) of described flue gas-vapor heat exchanger (4) is connected with the outlet (72) of described flue gas generating means (6), the exhanst gas outlet (44) of described flue gas-vapor heat exchanger (4) is connected to chimney (3), the outlet of described burner (10) is connected to the burner interface (91) of described flue gas generating means (6), combustion gas inserts the fuel gas inlet (101) of described burner (10), and combustion air inserts the combustion air inlet (102) of described burner (10);
Described gas type steam superheating device also comprises a steam filter (1), the inlet (11) of described steam filter (1) is connected with the saturated vapor source, the outlet (12) of described steam filter (1) is connected to the steam inlet (41) of described flue gas-vapor heat exchanger (4) by saturated vapor pipeline (2), and the steam (vapor) outlet (42) of described flue gas-vapor heat exchanger (4) is connected with superheat steam pipeline (5);
Described flue gas generating means (6) is provided with the mixing wind inlet (71) that is connected with the mixing air source.
2. gas type steam superheating device according to claim 1, it is characterized in that wherein said flue gas generating means (6) is made up of combustion chamber (9) and mixing chamber (7), described burner interface (91) is positioned at an end of described combustion chamber (9), and the other end of described combustion chamber (9) is connected and is communicated with described mixing chamber (7); Go up near having the described wind inlet (71) that mixes at described mixing chamber (7) with the junction of described combustion chamber (9); Upward have described outlet (72) at described mixing chamber (7) away from junction with described combustion chamber (9).
3. gas type steam superheating device according to claim 2 is characterized in that the junction of wherein said combustion chamber (9) and mixing chamber (7) is provided with firebreak (8), has equally distributed hole (81) on the described firebreak (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100801230A CN101245911A (en) | 2007-02-12 | 2007-02-12 | Gas type steam superheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100801230A CN101245911A (en) | 2007-02-12 | 2007-02-12 | Gas type steam superheating device |
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| Publication Number | Publication Date |
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| CN101245911A true CN101245911A (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100801230A Pending CN101245911A (en) | 2007-02-12 | 2007-02-12 | Gas type steam superheating device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304372A (en) * | 2011-08-03 | 2012-01-04 | 杨艺明 | Superheated steam carbonization furnace for treating organic rubbishes |
| CN102734824A (en) * | 2012-06-20 | 2012-10-17 | 无锡宇吉科技有限公司 | Chimney preheater |
| CN102808143A (en) * | 2011-05-29 | 2012-12-05 | 邯郸市正大制管有限公司 | Heating furnace for heating and pressurizing superheated steam |
| CN106285810A (en) * | 2016-09-26 | 2017-01-04 | 邯钢集团邯宝钢铁有限公司 | A kind of wet saturated steam is for the apparatus and method of sintering waste heat generating |
| CN107606641A (en) * | 2017-10-27 | 2018-01-19 | 四川省洪雅青衣江元明粉有限公司 | A kind of preheater in the technology based on MVR |
| CN109404886A (en) * | 2018-11-13 | 2019-03-01 | 北京京诚科林环保科技有限公司 | A kind of efficient superheating system of saturated vapor |
| CN113454389A (en) * | 2018-12-21 | 2021-09-28 | 西肯斯股份有限公司 | Burner system and method for providing thermal energy |
-
2007
- 2007-02-12 CN CNA2007100801230A patent/CN101245911A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808143A (en) * | 2011-05-29 | 2012-12-05 | 邯郸市正大制管有限公司 | Heating furnace for heating and pressurizing superheated steam |
| CN102304372A (en) * | 2011-08-03 | 2012-01-04 | 杨艺明 | Superheated steam carbonization furnace for treating organic rubbishes |
| CN102304372B (en) * | 2011-08-03 | 2013-06-26 | 杨艺明 | Superheated steam carbonization furnace for treating organic rubbishes |
| CN102734824A (en) * | 2012-06-20 | 2012-10-17 | 无锡宇吉科技有限公司 | Chimney preheater |
| CN106285810A (en) * | 2016-09-26 | 2017-01-04 | 邯钢集团邯宝钢铁有限公司 | A kind of wet saturated steam is for the apparatus and method of sintering waste heat generating |
| CN107606641A (en) * | 2017-10-27 | 2018-01-19 | 四川省洪雅青衣江元明粉有限公司 | A kind of preheater in the technology based on MVR |
| CN109404886A (en) * | 2018-11-13 | 2019-03-01 | 北京京诚科林环保科技有限公司 | A kind of efficient superheating system of saturated vapor |
| CN109404886B (en) * | 2018-11-13 | 2024-02-02 | 北京京诚科林环保科技有限公司 | High-efficient superheating system of saturated steam |
| CN113454389A (en) * | 2018-12-21 | 2021-09-28 | 西肯斯股份有限公司 | Burner system and method for providing thermal energy |
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