CN201706938U - Spiral flat pipe applied to waste heat boiler - Google Patents
Spiral flat pipe applied to waste heat boiler Download PDFInfo
- Publication number
- CN201706938U CN201706938U CN201020236721XU CN201020236721U CN201706938U CN 201706938 U CN201706938 U CN 201706938U CN 201020236721X U CN201020236721X U CN 201020236721XU CN 201020236721 U CN201020236721 U CN 201020236721U CN 201706938 U CN201706938 U CN 201706938U
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- flat tube
- waste heat
- heat boiler
- spiral
- industry
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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
Abstract
The utility model discloses a spiral flat pipe applied to a waste heat boiler, which comprises a flat pipe body and a first pipe connector and a second pipe connector which are located at both ends of the flat pipe body, wherein the first pipe connector doubles as an inlet, and the second pipe connector doubles as an outlet; the flat pipe body is annular or is in a regular curve line and is fixedly arranged in a heat exchange surface; the flat pipe body comprises at least one spiral part; and the cross section of the spiral part, which is along any mass point of the axis, is in a spirally gradient oval or long circle. The waste heat boiler applying the spiral flat pipe has the advantages of compact structure, small volume, convenient hoisting, material saving, low manufacturing cost and the like, simultaneously, greatly improves the heat exchange efficiency and can be widely applied to petrochemical industry, power industry, steel industry, non-ferrous metal industry, chemical industry, cement industry, building material industry, light industry, coal industry and the like.
Description
Technical field
The utility model relates to a kind of heat-exchange device, specifically is applied in the spiral flat tube in the waste heat boiler.
Background technology
The Chinese government plans the year two thousand twenty the carbon emission amount is reduced 40%-45%, is faced with huge reduction of discharging pressure at present.Every policy that helps energy-saving and emission-reduction is being carried out by government, and wherein heat recovery is as the effective way that improves efficiency of energy utilization, and country has put into effect multinomial policy and encouraged enterprise to carry out heat recovery.Under the promotion energetically of energy-saving and environmental protection plan, the demand rapid growth of waste heat boiler, market capacity is huge.Domestic waste heat boiler corporate sales volume was about 3,400,000,000 yuan in 2008, estimated that the domestic waste heat boiler market capacity of the five-year will reach 28,000,000,000 yuan, and about 40,000,000,000 yuan of international market amounts to about 68,000,000,000 yuan, and the waste heat boiler industry market has a extensive future.
China's residual heat resources are very abundant, particularly in industries such as oil and petrochemical industry, iron and steel, coloured, chemical industry, cement, building materials, light industry, coals, residual heat resources account for the 17%-67% of fuel consumption total amount, and wherein the residual heat resources of recyclable utilization account for 60% of waste heat total resources.China's residual heat resources proportion of utilization is low at present, and large-scale iron and steel enterprise utilization rate of waste heat is about 30%-50%, and other industry is lower, and UTILIZATION OF VESIDUAL HEAT IN improved efficiency potentiality are big.
Summary of the invention
Technical problem to be solved in the utility model is at above-mentioned prior art present situation, and the spiral flat tube that is applied in the waste heat boiler is provided, and effectively improves the utilization efficiency of heat energy of waste heat boiler.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: be applied in the spiral flat tube in the waste heat boiler, comprise first interface tube of flat tube body and the double as import that is positioned at flat tube body two ends and second interface tube of double as outlet, wherein: the flat tube body circularizes or the regular curve fixed in shape is installed in the heat-transfer surface, the flat tube body comprises at least one spire, and spire is along the cross section of the arbitrary particle of the axis ellipse or the Long Circle of gradual change in the shape of a spiral.
For optimizing technique scheme, the measure of taking also comprises:
Above-mentioned spire is left-handed or dextrorotation portion.
Be provided with changeover portion between the above-mentioned spire, described changeover portion is cross section ovalize or oblong straight tube or bend pipe.
Above-mentioned changeover portion is between left-handed and dextrorotation portion.
Above-mentioned heat-transfer surface comprises exhaust gases passes, and the water conservation section, superheater, evaporimeter and the economizer that are provided with along exhaust gases passes.
Above-mentioned flat tube body is connected with elbow, concetrated pipe, bend pipe or straight tube by interface tube, circularizes or the regular curve fixed in shape is arranged in water conservation section, superheater, evaporimeter and the economizer.
Be provided with drum between above-mentioned economizer and the water conservation section.Drum separates the water that feeds with vapour.
Above-mentioned flat tube body is formed by left-handed or is formed or combined by left-handed portion, changeover portion and dextrorotation portion by dextrorotation portion and forms.
Compared with prior art, the spiral flat tube that is applied in the waste heat boiler of the present utility model is a kind of novel heat exchange element, it is parent tube with the pipe, distortion moulding after flattening, its spire is along the cross section of the arbitrary particle of the axis ellipse or the Long Circle of gradual change in the shape of a spiral, and the pipe inner flow passage is because of the distortion of pipe shape in the shape of a spiral.The surface area of spiral spiral flat tube tube cavity wall and pipe periphery wall wants big many compared with the straight tube of standard, makes the heat exchange area that is heated increase greatly, is positioned at spiral flat tube tube cavity heated medium heat exchanger effectiveness and improves greatly.Be in helical flow in the pipe outside the pipe, it is vertically mobile that fluid is in pipe and outside the pipe substantially, is attended by horizontal screw simultaneously, and the periodically-varied of this flow velocity and the flow direction has been strengthened the axial mixing and the turbulivity of fluid, thereby has strengthened heat transfer.The experimental study surface: the inside and outside film heat transfer coefficient of spiral flat tube increases substantially than the inside and outside film heat transfer coefficient of light pipe, and is the most obvious when Reynolds number is low, reaches 2-4 doubly, along with the increase effect of Reynolds number reduces slightly, also can improve heat transfer coefficient usually more than 1.5 times.This waste heat boiler compact conformation, volume of having used spiral flat tube is little, and lifting is convenient; Save material, cost is low, increases substantially heat exchange efficiency, can be widely used in industries such as petrochemical industry, electric power, iron and steel, coloured, chemical industry, cement, building materials, light industry, coal.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the principle schematic of Fig. 1;
Fig. 3 is the structural representation of spiral flat tube among Fig. 1;
Fig. 4 is the G place zoomed-in view among Fig. 3;
Fig. 4 a is that A-A among Fig. 4 is to cutaway view;
Fig. 4 b is that B-B among Fig. 4 is to cutaway view;
Fig. 4 c is that C-C among Fig. 4 is to cutaway view;
Fig. 4 d is that D-D among Fig. 4 is to cutaway view;
Fig. 5 is the F place zoomed-in view among Fig. 3;
Fig. 5 a is that A-A among Fig. 5 is to cutaway view;
Fig. 5 b is that B-B among Fig. 5 is to cutaway view;
Fig. 5 c is that C-C among Fig. 5 is to cutaway view;
Fig. 5 d is that D-D among Fig. 5 is to cutaway view;
Fig. 6 is that E-E among Fig. 3 is to cutaway view;
Fig. 7 is the structural representation of pipeline in the waste heat boiler;
Fig. 8 is the right view of Fig. 7;
Fig. 9 is that the A-A of Fig. 7 is to cutaway view;
Figure 10 is the structural representation that the utility model is applied to the flue type residual heat boiler;
Figure 11 is the structural representation that the utility model is applied to the shell-and-tube waste heat boiler;
Figure 12 is a shell-and-tube waste heat boiler main body structure schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is to Figure 12 shows that structural representation of the present utility model.
Reference numeral wherein is: flat tube body 1, the first interface tube 1a, the second interface tube 1b, left-handed 1c, the 1d of dextrorotation portion, changeover portion 1e, heat-transfer surface 2, water conservation section 2a, superheater 2b, evaporimeter 2c, economizer 2d, drum 3,90 are spent elbows 4, one half bend 5, front end bobbin carriage 6, exhanst gas outlet 7, fixed tube sheet 8, steam (vapor) outlet 9, housing 10, deflection plate 11, tube bank 12, floating tubesheet 13, floating head 14, outer skull 15, water inlet 16, gas approach 17.
The spiral flat tube that is applied in the waste heat boiler of the present utility model, comprise first interface tube 1a of flat tube body 1 and the double as import that is positioned at flat tube body 1 two ends and the second interface tube 1b of double as outlet, wherein: flat tube body 1 circularizes or the regular curve fixed in shape is installed in the heat-transfer surface 2, flat tube body 1 comprises at least one spire, and spire is along the cross section of the arbitrary particle of the axis ellipse or the Long Circle of gradual change in the shape of a spiral.
Spire can be left-handed 1c or the 1d of dextrorotation portion.Spire is to be parent tube with the pipe, distortion moulding after flattening, and its spire is along the cross section of the arbitrary particle of the axis ellipse or the Long Circle of gradual change in the shape of a spiral.On flat tube body 1, can be provided with a plurality of spires.
Can be provided with changeover portion 1e between each spire, as shown in Figure 6, changeover portion 1e is the straight tube or the bend pipe of cross section ovalize in the present embodiment.Changeover portion 1e connects each left-handed 1c or the 1d of dextrorotation portion by changeover portion 1e between left-handed 1c and the 1d of dextrorotation portion.The cross section of changeover portion 1e can be oval, also can be circular.
Spiral flat tube of the present utility model, flat tube body 1 can be formed or be formed or combined by left-handed 1c, changeover portion 1e and the 1d of dextrorotation portion by the 1d of dextrorotation portion and form by left-handed 1c.
Heat-transfer surface 2 comprises exhaust gases passes 2a, and water conservation section 2a, the superheater 2b, evaporimeter 2c and the economizer 2d that are provided with along exhaust gases passes 2a.The flat tube body 1 of spiral flat tube is connected with elbow, concetrated pipe, bend pipe or straight tube with the second interface tube 1b by the first interface tube 1a, circularizes or the regular curve fixed in shape is arranged in water conservation section 2a, superheater 2b, evaporimeter 2c and the economizer 2d.
As shown in fig. 1, in the present embodiment, the flat tube body 1 of spiral flat tube wears economizer 2d, water conservation section 2a, evaporimeter 2c and superheater 2b successively.Be provided with drum 3 between economizer 2d and water conservation section 2a, drum 3 separates the water that feeds with vapour.The flat tube body 1 that is positioned at water conservation section 2a, superheater 2b, evaporimeter 2c and economizer 2d comprises left-handed 1c, changeover portion 1e and the 1d of dextrorotation portion.
As shown in Figure 2, waste heat source such as flue gas etc. enters water conservation section 2a, superheater 2b, evaporimeter 2c and economizer 2d from the waste heat source import, discharges then.Heat transferring mediums such as water enter the flat tube body 1 that is arranged in water conservation section 2a, superheater 2b, evaporimeter 2c and the economizer 2d, and heat transferring medium and waste heat source carry out discharging after the heat exchange.
Left-handed 1c as shown in Figure 4 and Figure 5 and the zoomed-in view of the 1d of dextrorotation portion.Fig. 4 a to Fig. 4 d is the cutaway view among Fig. 4, as can be seen, the cross section at left-handed any place of 1c all is ellipse or Long Circle from cutaway view, and is same, Fig. 5 a to Fig. 5 d is the cutaway view among Fig. 5, and the cross section at any place of the 1d of dextrorotation portion also all is ellipse or Long Circle.
As shown in Figure 7 and Figure 8; spiral flat tube in the waste heat boiler is connected with one half bend 5 by the first interface tube 1a or the second interface tube 1b and 90 degree elbows 4, circularizes or the regular curve shape is fixed in water conservation section 2a, superheater 2b, evaporimeter 2c and the economizer 2d by pipe box.Fig. 9 is that the A-A of Fig. 7 is to cutaway view.
The spiral flat tube that is applied in the waste heat boiler of the present utility model is a kind of novel heat exchange element, it is parent tube with the pipe, distortion moulding after flattening, its spire is along the cross section of the arbitrary particle of the axis ellipse or the Long Circle of gradual change in the shape of a spiral, and the pipe inner flow passage is because of the distortion of pipe shape in the shape of a spiral.The surface area of spiral spiral flat tube tube cavity wall and pipe periphery wall wants big many compared with the straight tube of standard, makes the heat exchange area that is heated increase greatly, is positioned at spiral flat tube tube cavity heated medium heat exchanger effectiveness and improves greatly.Be in helical flow in the pipe outside the pipe, it is vertically mobile that fluid is in pipe and outside the pipe substantially, is attended by horizontal screw simultaneously, and the periodically-varied of this flow velocity and the flow direction has been strengthened the axial mixing and the turbulivity of fluid, thereby has strengthened heat transfer.The experimental study surface: the inside and outside film heat transfer coefficient of spiral flat tube increases substantially than the inside and outside film heat transfer coefficient of light pipe, and is the most obvious when Reynolds number is low, reaches 2-4 doubly, along with the increase effect of Reynolds number reduces slightly, also can improve heat transfer coefficient usually more than 1.5 times.This waste heat boiler compact conformation, volume of having used spiral flat tube is little, and lifting is convenient; Save material, cost is low, increases substantially heat exchange efficiency, can be widely used in industries such as petrochemical industry, electric power, iron and steel, coloured, chemical industry, cement, building materials, light industry, coal.
Figure 10 is applied to the structural representation of flue type residual heat boiler for the spiral flat tube of present embodiment.
As shown in figure 10, the flue type residual heat boiler mainly is made up of economizer, tedge, drum, down-comer, water conservation section, evaporimeter, superheater and chimney etc.Flue type boiler is a water-tube boiler, and water or steam flow in boiler tube, flows in the flue of flue gas outside boiler tube, and the coil pipe group that is made of spiral flat tube is set in economizer, water conservation section, evaporimeter and superheater.The outer surface of flue gas by washing away pipe is with water in the heat transferred pipe or steam.
In the course of work, water enters economizer through feedwater piping, and is through sending into drum after the heating, descending successively by water conservation section, evaporator section along down-comer after mixing with pot water.Water absorbs the thermosetting steam water interface and arrives in the drum through tedge in water conservation section and evaporator section, by drum water, vapour are separated.The saturated vapor of separating flows to superheater by drum top, continues heat absorption and becomes superheated steam, and superheated steam is delivered to upstream device through jet chimney and used, as is used for steam turbine power generation, perhaps uses for the heating of producing, live.
Hot flue gas is flowed through behind water conservation section, superheater, evaporimeter and the economizer in order, again through chimney row to atmosphere.
Embodiment 3
Figure 11 is applied to the structural representation of shell-and-tube waste heat boiler for the spiral flat tube of present embodiment.
As shown in figure 12, shell-and-tube waste heat boiler body mainly is made up of front end bobbin carriage 6, exhanst gas outlet 7, fixed tube sheet 8, steam (vapor) outlet 9, housing 10, deflection plate 11, tube bank 12, floating tubesheet 13, floating head 14, outer skull 15, water inlet 16 and gas approach 17 etc.The shell-and-tube waste heat boiler is a multitubular boiler, and flue gas flows in boiler tube, flows in the shell of water outside pipe.Heat passes to the outer water of pipe by tube wall.
Water enters shell through feedwater piping, and water absorbs heat in shell and forms steam water interface in tedge arrival drum, by drum water, vapour is separated.The water of separating forms the water circulation in down-comer is got back to shell; The steam of separating is delivered to upstream device through jet chimney and is used, as is used for steam turbine power generation, perhaps uses for the heating of producing, live.
Hot flue gas enters tube bank 12 through gas approach 17, leaves boiler by exhanst gas outlet 7 and goes upstream device to use or arrange to atmosphere.
Tube bank 12 is made up of spiral flat tube, and the pipe of restraining in 12 passes deflection plate 11, and the pipe two ends are connected with floating tubesheet 13 with fixed tube sheet 8 respectively, and the connected mode of pipe and floating tubesheet 13 has expanded joint, welding, expanded and welded tube joint and several modes such as uses; Housing 10 adopts welding manner with floating tubesheet 13; Fixed tube sheet 8 and bobbin carriage link into an integrated entity by flange.
Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.
Claims (8)
1. be applied in the spiral flat tube in the waste heat boiler, comprise flat tube body (1) and be positioned at first interface tube (1a) of double as import at flat tube body (1) two ends and second interface tube (1b) of double as outlet, it is characterized in that: described flat tube body (1) circularizes or the regular curve fixed in shape is installed in the heat-transfer surface (2), flat tube body (1) comprises at least one spire, and described spire is along the cross section of the arbitrary particle of the axis ellipse or the Long Circle of gradual change in the shape of a spiral.
2. the spiral flat tube that is applied in the waste heat boiler according to claim 1 is characterized in that: described spire is left-handed (1c) or dextrorotation portion (1d).
3. the spiral flat tube that is applied in the waste heat boiler according to claim 2 is characterized in that: be provided with changeover portion (1e) between the described spire, described changeover portion (1e) is cross section ovalize or oblong straight tube or bend pipe.
4. the spiral flat tube that is applied in the waste heat boiler according to claim 3 is characterized in that: described changeover portion (1e) is positioned between left-handed (1c) and the dextrorotation portion (1d).
5. the spiral flat tube that is applied in the waste heat boiler according to claim 4; it is characterized in that: described heat-transfer surface (2) comprises exhaust gases passes (2a), and the water conservation section (2a), superheater (2b), evaporimeter (2c) and the economizer (2d) that are provided with along exhaust gases passes (2a).
6. the spiral flat tube that is applied in the waste heat boiler according to claim 5; it is characterized in that: described flat tube body (1) by the double as import first interface tube (1a) and second interface tube (1b) of double as outlet be connected with elbow, concetrated pipe, bend pipe or straight tube, circularize or the regular curve fixed in shape is arranged in water conservation section (2a), superheater (2b), evaporimeter (2c) and the economizer (2d).
7. the spiral flat tube that is applied in the waste heat boiler according to claim 6 is characterized in that: be provided with drum (3) between described economizer (2d) and the water conservation section (2a).
8. according to the described spiral flat tube that is applied in the waste heat boiler of the arbitrary claim of claim 5 to 7, it is characterized in that: described flat tube body (1) is made up of left-handed (1c) or is formed or combined by left-handed (1c), changeover portion (1e) and dextrorotation portion (1d) by dextrorotation portion (1d) and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020236721XU CN201706938U (en) | 2010-06-24 | 2010-06-24 | Spiral flat pipe applied to waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020236721XU CN201706938U (en) | 2010-06-24 | 2010-06-24 | Spiral flat pipe applied to waste heat boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201706938U true CN201706938U (en) | 2011-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020236721XU Expired - Fee Related CN201706938U (en) | 2010-06-24 | 2010-06-24 | Spiral flat pipe applied to waste heat boiler |
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| CN (1) | CN201706938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017097133A1 (en) * | 2015-12-09 | 2017-06-15 | 浙江三花汽车零部件有限公司 | Heat exchanger |
-
2010
- 2010-06-24 CN CN201020236721XU patent/CN201706938U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017097133A1 (en) * | 2015-12-09 | 2017-06-15 | 浙江三花汽车零部件有限公司 | Heat exchanger |
| US10520258B2 (en) | 2015-12-09 | 2019-12-31 | Zhejiang Sanhua Automotive Components Co., Ltd. | Heat exchanger |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20180624 |
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| CF01 | Termination of patent right due to non-payment of annual fee |