CN103471074A - Compact smoke and waste heat recovery and steam generation device - Google Patents
Compact smoke and waste heat recovery and steam generation device Download PDFInfo
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- CN103471074A CN103471074A CN 201310421248 CN201310421248A CN103471074A CN 103471074 A CN103471074 A CN 103471074A CN 201310421248 CN201310421248 CN 201310421248 CN 201310421248 A CN201310421248 A CN 201310421248A CN 103471074 A CN103471074 A CN 103471074A
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Abstract
The invention discloses a compact smoke and waste heat recovery and steam generation device. The device comprises a smoke inlet, a smoke outlet, a heat exchange fluid inlet, a steam outlet, heat exchange tubes, distribution tubes, inner guide baffle plates, outer guide baffle plates, an inner barrel, an outer barrel, liquid collection tubes and gas collection tubes. The heat exchange tubes are oval corrugated tubes of a certain wave pitch which are formed through special machining. A heat exchange tube bundle is a cross-flow coiled tube structure of a multilayered combination. Combination way of the wave node height e of the oval corrugated tubes and coilers is determined by coiler diameter D, coiler spacing s and smoke flow speed mu, and smoke sequentially diffuses and contracts in a jet-flow manner with a direction of 360 degrees. Due to the fact that the smoke of the waste heat recovery and steam generation device of the multi-layered combinational oval corrugated coilers diffuses and contracts in a jet-flow manner, evaporation and heat-transferring process of the smoke and fluid in the tubes is enhanced, smoke and waste heat recovery efficiency is improved, size of the waste heat recovery and steam generation device is reduced, and manufacturing cost is saved.
Description
Technical field
The present invention relates to flue gas waste heat recovery apparatus, be specifically related to a kind of close-coupled flue gas waste heat recovery steam raising plant.
Background technology
Energy-saving and emission-reduction are important decision of China's recycling economy sustainable development, and in China's energy Long-and Medium-term Development outline, energy-saving and emission-reduction are emphasis of China's energy strategy development, are also recycling economy sustainable development key links.Efficiency of energy utilization and the international most advanced level gap of China are larger at present, causing the reason that energy efficiency is low is mainly that the energy conversion equipment technology falls behind, cause used heat and UTILIZATION OF VESIDUAL HEAT IN efficiency low, in the modern industry process, flue gas waste heat recovery apparatus commonly used mainly contains finned tube exchanger and heat exchange of heat pipe, two kinds of technology all exist that thermal contact resistance is large, heat exchange efficiency is low, metal material consumption large and install the defects such as huge, so the utmost point needs the efficient flue gas waste heat recovery technology of development of new.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of close-coupled flue gas waste heat recovery steam raising plant, for flue gas waste heat recovery in industrial process provides the flue gas waste heat recovery technology of efficient a, compactness and environmental protection.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of close-coupled flue gas waste heat recovery steam raising plant comprises gas approach 1, exhanst gas outlet 2, heat exchanging fluid import 3, steam (vapor) outlet 4, node elliptic heat exchange tube 5, isocon 6, collector tube 7, dry pipe 8, interior water conservancy diversion deflection plate 9, outer water conservancy diversion deflection plate 10, inner barrel 11 and outer cylinder body 12; It is characterized in that: the end positions that described gas approach 1 and exhanst gas outlet 2 are axial in described steam raising plant is communicated with described inner barrel 11 respectively; Described heat exchanging fluid import 3 and steam (vapor) outlet 4 are on the close sidewall at two ends of described outer cylinder body 12; Described node elliptic heat exchange tube 5 has many groups, described many group node elliptic heat exchange tubes are arranged in described inner core inside successively vertically, in described isocon 6, collector tube 7 and dry pipe 8 space between described inner barrel 11 and outer cylinder body 12, and with corresponding node elliptic heat exchange tube 5, be communicated with respectively; Described interior water conservancy diversion deflection plate 9 and outer water conservancy diversion deflection plate 10 all have a plurality of, are arranged alternately successively between described wave node heat exchange tube 5.
Further, described node elliptic heat exchange tube 5 is titanium pipe or stainless steel tube; Described node elliptic heat exchange tube 5 is the ellipse channel structure, and is the cross-flow tray tubular construction of multiple layer combination, and coil pipe is with left and right multi-layer intercrossed combining structure arrangement, the formation prismatic grid type flow passage structure of revolving; Described node elliptic heat exchange tube 5 is provided with protruding node 14, and described node 14 is highly 3mm-6mm, and the distance of adjacent two node 14 is 10mm-16mm; 5 layers of described node elliptic heat exchange tubes and interlamellar spacing are 5-8mm; Described isocon 6, collector tube 7 is consistent with dry pipe 8 longitudinal axis and perpendicular to the axis of described heat exchanging fluid import 3 and steam (vapor) outlet 4, described dry pipe 8 and described steam (vapor) outlet 4 are communicated with, and described collector tube 7 is between described isocon 6 and described dry pipe 8; Described outer water conservancy diversion deflection plate 10 has through hole annular jet type structure for centre, and neighboring is connected with described inner barrel 11 inwall contacts; Described interior water conservancy diversion deflection plate 9 is for being provided with the solid ring-type jet flow type structure of bracing frame 15, and neighboring does not contact with described inner barrel 11 inwalls and leaves gap; Described gas approach 1 and exhanst gas outlet 2 are communicated with described inner barrel 11 by interior water conservancy diversion 13 respectively.
The invention has the beneficial effects as follows: the recovery to fume afterheat in industrial process is efficient, overcomes finned tube exchanger and heat exchange of heat pipe in flue gas waste heat recovery apparatus commonly used and has that thermal contact resistance is large, heat exchange efficiency is low, metal material consumption large and install huge etc. defect.
The accompanying drawing explanation
Fig. 1 is a kind of close-coupled flue gas waste heat recovery steam raising plant complete section structural representation of the present invention;
Fig. 2 is node elliptic heat exchange tube structural representation of the present invention;
Fig. 3 is that outer water conservancy diversion deflection plate of the present invention is faced structural representation;
The A-A cutaway view that Fig. 4 is Fig. 3;
Fig. 5 is that interior water conservancy diversion deflection plate of the present invention is faced structural representation;
The B-B cutaway view that Fig. 6 is Fig. 5.
In accompanying drawing, the list of parts of each label representative is as follows:
1, gas approach, 2, exhanst gas outlet, 3, the heat exchanging fluid import, 4, steam (vapor) outlet, 5, the node elliptic heat exchange tube, 6, isocon, 7, collector tube, 8, dry pipe, 9, interior flow guiding type deflection plate, 10, outer flow guiding type deflection plate, 11, inner barrel, 12, outer cylinder body, 13, interior water conservancy diversion, 14, node, 15, support.
The specific embodiment
Below in conjunction with accompanying drawing, principle of the present invention and feature are described, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Fig. 1-Fig. 6, a kind of close-coupled flue gas waste heat recovery steam raising plant, comprise gas approach 1, exhanst gas outlet 2, heat exchanging fluid import 3, steam (vapor) outlet 4, node elliptic heat exchange tube 5, isocon 6, collector tube 7, dry pipe 8, interior water conservancy diversion deflection plate 9, outer water conservancy diversion deflection plate 10, inner barrel 11, outer cylinder body 12 and interior water conservancy diversion 13, as shown in Figure 1, described gas approach 1 and exhanst gas outlet 2 are in axial end positions, be communicated with described inner barrel 11 by interior water conservancy diversion 13 respectively, gas approach 1 and exhanst gas outlet 2 are respectively used to into cigarette and smoke, produce and diffuse into inner barrel 11 by an interior water conservancy diversion 13 before flue gas heat exchange, discharged by exhanst gas outlet 2 by 13 compressions of water conservancy diversion in another one after flue gas heat exchange, described heat exchanging fluid import 3 and steam (vapor) outlet 4 are in described outer cylinder body 12 near on the sidewall at two ends, and the mode that heat exchanging fluid import 3 and steam (vapor) outlet 4 are respectively used to heat exchanging fluid and smoke convection enters heat exchanger tube 5 and output steam produce power, described node elliptic heat exchange tube 5 has many groups, and described many group node elliptic heat exchange tubes are arranged successively vertically, and are the cross-flow tray tubular construction of multiple layer combination, and coil pipe is with left and right multi-layer intercrossed combining structure arrangement, the formation prismatic grid type flow passage structure of revolving, in described isocon 6, collector tube 7 and dry pipe 8 space between inner barrel 11 and outer cylinder body 12, also with corresponding node elliptic heat exchange tube 5, be communicated with respectively, described outer water conservancy diversion deflection plate 10 and interior water conservancy diversion deflection plate 9 all have a plurality of, are arranged alternately successively between described heat exchanger tube 5, and two adjacent groups node elliptic heat exchange tube 5 is separated by outer water conservancy diversion deflection plate 10 or interior water conservancy diversion deflection plate 9, described isocon 6, collector tube 7 is consistent with dry pipe 8 longitudinal axis and perpendicular to the axis of described heat exchanging fluid import 3 and steam (vapor) outlet 4, described isocon 6 and described heat exchanging fluid import 3 are communicated with, described dry pipe 8 and described steam (vapor) outlet 4 are communicated with, described collector tube 7 is between described isocon 6 and described dry pipe 8, heat exchanging fluid flows through node elliptic heat exchange tube 5 from heat exchanging fluid import 3 enters isocon 6, collector tube 7, dry pipe 8 constantly is heated with flue gas heat exchange, the vaporization generating steam occurs is discharged by steam (vapor) outlet 4 through dry pipe 8, enter another circulation system, after acting, condensing reflux enters fume afterheat gas recovered steam generating means.
As shown in Figure 2, described node elliptic heat exchange tube 5 is for being provided with titanium pipe or the stainless steel tube of node 14,5 layers of spacing with layer of the node elliptic heat exchange tube of same group are 5mm-8mm, described node elliptic heat exchange tube 5 is node ellipse channel structure through special-purpose machinery machine-shaping, node 14 height e on node elliptic heat exchange tube 5 are 3mm-6mm, wave pitch h is 10mm-16mm, and node 14 height e and coil pipe combination on described node elliptic heat exchange tube 5 are determined by coil diameter D, coil space s and flue gas flow rate μ, flue gas enters inner barrel 11 from gas approach 1 to be passed through from 5 layers of spacing with layer of node elliptic heat exchange tube, node 14 is projections of node elliptic heat exchange tube 5 tube walls, 14 pairs of flue gases of the protruding node of tube wall have location, current limliting, thereby increase the triple role that node elliptic heat exchange tube 5 external surface areas increase the contact area of heat exchanging fluid and flue gas, helical coil makes the heat exchanging fluid flow path increase, in pipe, flowing time is long, improved the contact area on the interior flue gas of unit volume and heat exchanger tube surface, can extend heat exchanging fluid and flue gas heat exchange time, fully increase heat exchanging fluid by the contact area of node elliptic heat exchange tube 5 and flue gas, the final heat exchange efficiency that improves.
As Fig. 3, shown in 4, described outer water conservancy diversion deflection plate 10 is the middle ring-type ring-type jet flow type structure that through hole is arranged, neighboring is connected with described inner barrel 11 inwall contacts, described interior water conservancy diversion deflection plate 9 is for being provided with the solid ring-type annular jet type structure of bracing frame 15, by the interior water conservancy diversion deflection plate 9 of bracing frame 15, be arranged in inner barrel 11, neighboring does not contact and leaves gap with described inner barrel 11 inwalls, flue gas from gas approach 1 after first group of node elliptic heat exchange tube 5, enter next group node elliptic heat exchange tube 5 by the through hole in the middle of outer water conservancy diversion deflection plate 10 or the gap between interior water conservancy diversion deflection plate 9 neighborings and described inner barrel 11 inwalls, can determine outer water conservancy diversion deflection plate 10 and the effluxvelocity of interior water conservancy diversion deflection plate 9 on 360 ° of directions by flue gas flow v, its flow velocity calculates as follows:
f=π * D * P.
The present invention is mainly the flue gas waste heat recovery for delivery dynamic combustion tail gas, the evaporation of application heat exchanging fluid produces the steam of certain pressure, for promoting turbine power generation, utilizing waste heat for refrigeration, system heating etc., heat exchanging fluid is liquid water or organic media, after the acting of delivery dynamic combustion, tail gas is entered in apparatus of the present invention by gas approach 1 by blast pipe with the flue gas form, through the mode of jet of the diffuser left side of flowing through, the multi-layer intercrossed formula node of dextrorotation elliptic heat exchange tube 5, skim over a left side with 360 ° of mode of jet through reflux section equally at inner barrel 9 inwalls, spread successively on the multi-layer intercrossed node elliptic heat exchange tube of dextrorotation 5 surfaces, shrink, warp and the interior heat exchanging fluid heat exchange of node elliptic heat exchange tube 5, flue-gas temperature reduces, by exhanst gas outlet 2, discharged, the flue gas discharged in industrial process enters in first group of node elliptic heat exchange tube 5 in inner barrel 11 along inner barrel 11 walls mode with jet 360 ° of directions through interior water conservancy diversion 13 diffusions by gas approach 1, flue gas is full of node elliptic heat exchange tube 5 gap between layers, with the heat exchanging fluid heat exchange entered into from heat exchanging fluid import 3 in node elliptic heat exchange tube 5, node elliptic heat exchange tube 5 is the ellipse channel structure, can make the intraductal heat exchange fluid well-distributing distribute, thermograde is concentrated near heat exchanger tube 5 tube walls, attenuate the bound thickness of heat exchanging fluid.The node ellipse channel coil arrangement of fume side, revolve because it is left and right and be staggered to form the prismatic network, and the flow of flue gas distributions is more even, strengthened the turbulent flow of flue gas, improved the thermal efficiency of fume side.Compare with finned tube, utilize node elliptical tube and multiple layer combination coil arrangement can make flue gas heat exchange surface area in unit volume improve more than 1 times, make its more compact structure simultaneously, described outer water conservancy diversion deflection plate 10 and interior water conservancy diversion deflection plate 9 all have a plurality of, be arranged alternately successively between described heat exchanger tube 5, leave gap between interior water conservancy diversion deflection plate 9 and described inner barrel 11 inwalls, when flue gas enters next group node elliptic heat exchange tube 5 by one group of node elliptic heat exchange tube 5 through interior water conservancy diversion deflection plate 9 from the gap by interior water conservancy diversion deflection plate 9 and inner barrel 11 inwalls, the gap constrictions flue gas, when flue gas enters next group node elliptic heat exchange tube 5 by one group of node elliptic heat exchange tube Unit 5 through outer water conservancy diversion deflection plate 10 intermediate throughholes, the diffusion flue gas, flue gas is cycled to repeat diffusion more than 9 time by outer water conservancy diversion deflection plate 10 and interior water conservancy diversion deflection plate, shrink, increased the glide path of flue gas, alternation washes away the heat exchange efficiency that node elliptic heat exchange tube 5 tube walls fully improve working fluid and flue gas, flue gas and heat exchanging fluid are through receiving in sum a series of high efficient heat exchanging of steam raising plant, heat exchanging fluid finally becomes the steam of certain pressure from steam (vapor) outlet 4 outputs, can be used for promoting turbine power generation, utilizing waste heat for refrigeration and system heating etc., flue gas cool-down is discharged from exhanst gas outlet 2 after shrinking by water conservancy diversion in flue gas 13, reduced the pollution to environment, heat exchanging fluid can be recycled after after heat exchange becomes the steam acting, condensing reflux enters the flue gas waste heat recovery steam raising plant, economizes on resources.
Specific embodiment: certain delivery power flue gas discharge capacity 1450 ㎏/h enters close-coupled flue gas waste heat recovery steam raising plant, this discharge capacity automobile engine tail gas flue gas flow is v, determines that thus its effluxvelocity on 360 ° of directions is the span of u(through heat transfer and hydrodynamics system-computed).Motor vehicle fuel tail gas after the acting of engine internal combustion is entered the smoke inlet 1 of close-coupled flue gas waste heat recovery steam raising plant by blast pipe with the flue gas form, through the mode of jet of the diffuser left and right oval coil pipe of multi-layer intercrossed formula node that revolves of flowing through, skim over and left and rightly revolve multi-layer intercrossed node oval plate tube-surface and spread successively, shrink with 360 ° of mode of jet equally at the inner core body wall through reflux section, through with heat exchanger tube 5 in the heat exchanging fluid heat exchange, flue-gas temperature is reduced to 150 ℃ by 450 ℃, by exhanst gas outlet, is discharged.The heat exchanging fluid of steam generation constantly is heated through node elliptic heat exchange tube 5, separating tube 6, collector tube 7, dry pipe 8, vaporization generation 0.3MPa-1.8MPa steam occurs and by dry pipe, enter vehicle-mounted turbine power generation system, after acting, condensation is back to the exhaust waste heat generation heat-exchanger rig again.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a close-coupled flue gas waste heat recovery steam raising plant, comprise gas approach (1), exhanst gas outlet (2), heat exchanging fluid import (3), steam (vapor) outlet (4), node elliptic heat exchange tube (5), isocon (6), collector tube (7), dry pipe (8), interior water conservancy diversion deflection plate (9), outer water conservancy diversion deflection plate (10), inner barrel (11) and outer cylinder body (12); It is characterized in that: described gas approach (1) and exhanst gas outlet (2) end positions axial in described steam raising plant are communicated with described inner barrel (11) respectively; Described heat exchanging fluid import (3) and steam (vapor) outlet (4) are on the close sidewall at two ends of described outer cylinder body (12); Described node elliptic heat exchange tube (5) has many groups, described many group node elliptic heat exchange tubes are arranged in described inner core inside successively vertically, in described isocon (6), collector tube (7) and dry pipe (8) space between described inner barrel (11) and outer cylinder body (12), and with corresponding node elliptic heat exchange tube (5), be communicated with respectively; Described interior water conservancy diversion deflection plate (9) and outer water conservancy diversion deflection plate (10) all have a plurality of, are arranged alternately successively between described heat exchanger tube (5).
2. a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, it is characterized in that: described node elliptic heat exchange tube (5) is titanium pipe or stainless steel tube.
3. a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, it is characterized in that: described node elliptic heat exchange tube (5) is the ellipse channel structure, and be the cross-flow tray tubular construction of multiple layer combination, coil pipe is with left and right multi-layer intercrossed combining structure arrangement, the formation prismatic grid type flow passage structure of revolving.
4. according to the arbitrary described a kind of close-coupled flue gas waste heat recovery steam raising plant of claim 1-3, it is characterized in that: described node elliptic heat exchange tube (5) is provided with protruding node (14), described node (14) is highly 3mm-6mm, and the distance of adjacent two node (14) is 10mm-16mm.
5. a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 3 is characterized in that: described node elliptic heat exchange tube (5) layer is 5-8mm with interlamellar spacing.
6. a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, it is characterized in that: described isocon (6), collector tube (7) is consistent with dry pipe (8) longitudinal axis and perpendicular to the axis of described heat exchanging fluid import (3) and steam (vapor) outlet (4), described dry pipe (8) and described steam (vapor) outlet (4) are communicated with, and described collector tube (7) is positioned between described isocon (6) and described dry pipe (8).
7. according to claim a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, it is characterized in that: described outer water conservancy diversion deflection plate (10) has through hole annular jet type structure for centre, and neighboring is connected with the contact of described inner barrel (11) inwall.
8. according to claim a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, it is characterized in that: described interior water conservancy diversion deflection plate (9) is for being provided with the solid ring-type jet flow type structure of bracing frame (15), and neighboring does not contact and leaves gap with described inner barrel (11) inwall.
9. according to claim a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, it is characterized in that: described gas approach (1) and exhanst gas outlet (2) are communicated with described inner barrel (11) by interior water conservancy diversion (13) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310421248 CN103471074A (en) | 2013-09-16 | 2013-09-16 | Compact smoke and waste heat recovery and steam generation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310421248 CN103471074A (en) | 2013-09-16 | 2013-09-16 | Compact smoke and waste heat recovery and steam generation device |
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| CN103471074A true CN103471074A (en) | 2013-12-25 |
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| CN 201310421248 Pending CN103471074A (en) | 2013-09-16 | 2013-09-16 | Compact smoke and waste heat recovery and steam generation device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486561A (en) * | 2013-09-22 | 2014-01-01 | 桂林新艺制冷设备有限责任公司 | Compact smoke waste heat recovery and steam generating device |
| CN105115320A (en) * | 2015-09-16 | 2015-12-02 | 郑州大学 | Novel spiral winding pipe heat exchanger |
| CN110822941A (en) * | 2019-11-26 | 2020-02-21 | 衡阳丰联精细化工有限公司 | Industrial waste gas waste heat recovery device |
-
2013
- 2013-09-16 CN CN 201310421248 patent/CN103471074A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486561A (en) * | 2013-09-22 | 2014-01-01 | 桂林新艺制冷设备有限责任公司 | Compact smoke waste heat recovery and steam generating device |
| CN105115320A (en) * | 2015-09-16 | 2015-12-02 | 郑州大学 | Novel spiral winding pipe heat exchanger |
| CN110822941A (en) * | 2019-11-26 | 2020-02-21 | 衡阳丰联精细化工有限公司 | Industrial waste gas waste heat recovery device |
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