CN203478170U - Compact smoke waste heat recovery steam generation device - Google Patents
Compact smoke waste heat recovery steam generation device Download PDFInfo
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- CN203478170U CN203478170U CN201320583975.2U CN201320583975U CN203478170U CN 203478170 U CN203478170 U CN 203478170U CN 201320583975 U CN201320583975 U CN 201320583975U CN 203478170 U CN203478170 U CN 203478170U
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- waste heat
- heat recovery
- flue gas
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Abstract
The utility model discloses a compact smoke waste heat recovery steam generation device. The compact smoke waste heat recovery steam generation device comprises a smoke inlet, a smoke outlet, a heat exchange fluid inlet, a steam outlet, heat exchange pipes, a diversion pipe, an inner flow guide baffle plate, an outer flow guide baffle plate, an inner barrel body, an outer barrel body, a liquid collecting pipe and a steam collecting pipe. Each heat exchange pipe is an oval corrugated pipe with a certain wave pitch, wherein the oval corrugated pipe is machined by a special machine. A heat exchange bundle is of a cross flow coil pipe structure combined by multiple layers. The wave node height e of each oval corrugated pipe and the combination mode of coil pipes are determined by the diameter D of the coil pipes, the interval s between the coil pipes and the flow speed mu of smoke, and the smoke sequentially diffuses and contracts in the 360-degree directions and in a jet flow mode. According to the compact smoke waste heat recovery steam generation device combined with the multiple layers of the oval corrugated coil pipes, the smoke diffuses and contracts in the jet flow mode, the evaporation and heat conduction process of the smoke and fluid inside the pipes is reinforced, the smoke waste heat recovery efficiency is improved, the size of the waste heat recovery steam generation device is reduced, and manufacturing cost is saved.
Description
Technical field
The utility model relates to flue gas waste heat recovery apparatus, is specifically related to a kind of close-coupled flue gas waste heat recovery steam raising plant.
Background technology
Energy-saving and emission-reduction are in important decision ， China energy Long-and Medium-term Development outline of China's recycling economy sustainable development, and 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 energy conversion equipment technology falls behind, cause used heat and UTILIZATION OF VESIDUAL HEAT IN efficiency low, in modern industry process, conventional flue gas waste heat recovery apparatus 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.
Utility model content
Technical problem to be solved in the utility model 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 utility model 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, exhanst gas outlet, heat exchanging fluid import, steam (vapor) outlet, node elliptic heat exchange tube, isocon, collector tube, dry pipe, interior water conservancy diversion deflection plate, outer water conservancy diversion deflection plate, inner barrel and outer cylinder body; Described gas approach and exhanst gas outlet, in the axial end positions of described steam raising plant, are communicated with described inner barrel respectively; Described heat exchanging fluid import and steam (vapor) outlet are in described outer cylinder body on the sidewall near two ends; Described node elliptic heat exchange tube has many groups, it is inner that described many group node elliptic heat exchange tubes are arranged in described inner core successively vertically, in described isocon, collector tube and the dry pipe space between described inner barrel and outer cylinder body, and be communicated with corresponding node elliptic heat exchange tube respectively; Described interior water conservancy diversion deflection plate and outer water conservancy diversion deflection plate all have a plurality of, are arranged alternately successively between described wave node heat exchange tube.
Further, described node elliptic heat exchange tube is titanium pipe or stainless steel tube; Described node elliptic heat exchange tube is 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 is provided with protruding node, and described node height is 3mm-6mm, and the distance of adjacent two node is 10mm-16mm; Described node elliptic heat exchange tube layer and interlamellar spacing are 5-8mm; Described isocon, collector tube is consistent with dry pipe longitudinal axis and perpendicular to the axis of described heat exchanging fluid import and steam (vapor) outlet, described dry pipe and described steam (vapor) outlet are communicated with, and described collector tube is between described isocon and described dry pipe; Described outer water conservancy diversion deflection plate is that centre has through hole annular jet type structure, and neighboring is connected with described inner barrel inwall contact; Described interior water conservancy diversion deflection plate is the solid ring-type jet flow type structure that is provided with bracing frame, and neighboring does not contact and leaves gap with described inner barrel inwall; Described gas approach and exhanst gas outlet are communicated with described inner barrel by interior water conservancy diversion respectively.
The beneficial effects of the utility model are: the recovery to fume afterheat in industrial process is efficient, overcome finned tube exchanger and heat exchange of heat pipe in conventional flue gas waste heat recovery apparatus and have that thermal contact resistance is large, heat exchange efficiency is low, metal material consumption large and install huge etc. defect.
Accompanying drawing explanation
Fig. 1 is a kind of close-coupled flue gas waste heat recovery steam raising plant complete section structural representation described in the utility model;
Fig. 2 is the utility model node elliptic heat exchange tube structural representation;
Fig. 3 is that outer water conservancy diversion deflection plate described in the utility model is faced structural representation;
Fig. 4 is the A-A cutaway view of Fig. 3;
Fig. 5 is that interior water conservancy diversion deflection plate of the present invention is faced structural representation;
Fig. 6 is the B-B cutaway view of Fig. 5.
In accompanying drawing, the list of parts of each label representative is as follows:
1, gas approach, 2, exhanst gas outlet, 3, heat exchanging fluid import, 4, steam (vapor) outlet, 5, 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 utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Fig. 1-Fig. 6, a 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, 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, by interior water conservancy diversion 13, be communicated with described inner barrel 11 respectively, gas approach 1 and exhanst gas outlet 2 are respectively used to into cigarette and smoke, before flue gas heat exchange, by an interior water conservancy diversion 13, produce and diffuse into inner barrel 11, after flue gas heat exchange, by 13 compressions of water conservancy diversion in another one, by exhanst gas outlet 2, discharged, described heat exchanging fluid import 3 and steam (vapor) outlet 4 are in described outer cylinder body 12 on the sidewall near 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, be also communicated with corresponding node elliptic heat exchange tube 5 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 is constantly heated with flue gas heat exchange, 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 the node elliptic heat exchange tubes of same group are 5mm-8mm with the spacing of layer, 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 with the spacing of layer from 5 layers of node elliptic heat exchange tubes, node 14 is projections of node elliptic heat exchange tube 5 tube walls, 14 pairs of flue gases of 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 increases heat exchanging fluid flow path, 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 has through hole, 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, 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, enter next group node elliptic heat exchange tube 5, can determine outer water conservancy diversion deflection plate 10 and the effluxvelocity of interior water conservancy diversion deflection plate 9 in 360 ° of directions by flue gas flow v, its flow velocity calculates as follows: f=π * D * P 5.
The utility model 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, be used 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 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, through reflux section, at inner barrel 9 inwalls, with 360 ° of mode of jet, skim over a left side equally, 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 discharging 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 from heat exchanging fluid import 3, enter into the heat exchanging fluid heat exchange in node elliptic heat exchange tube 5, node elliptic heat exchange tube 5 is ellipse channel structure, can make 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, revolves because it is left and right and is staggered to form prismatic network, and flow of flue gas distributions is more even, has strengthened the turbulent flow of flue gas, has 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, between interior water conservancy diversion deflection plate 9 and described inner barrel 11 inwalls, leave gap, 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, 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, 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 steam acting, condensing reflux enters 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 in 360 ° of directions is that u(is through the span of 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 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, through reflux section, at inner core body wall, with 360 ° of mode of jet, skim over and left and rightly revolve multi-layer intercrossed node oval plate tube-surface and spread successively, shrink equally, through with heat exchanger tube 5 in 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 is constantly 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 exhaust waste heat generation heat-exchanger rig again.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. a 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: described gas approach (1) and exhanst gas outlet (2), in the axial end positions of 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, it is inner that described many group node elliptic heat exchange tubes are arranged in described inner core 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 be communicated with corresponding node elliptic heat exchange tube (5) 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, 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 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. a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, 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. 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. a kind of close-coupled flue gas waste heat recovery steam raising plant according to claim 1, 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 |
|---|---|---|---|
| CN201320583975.2U CN203478170U (en) | 2013-09-22 | 2013-09-22 | Compact smoke waste heat recovery steam generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320583975.2U CN203478170U (en) | 2013-09-22 | 2013-09-22 | Compact smoke waste heat recovery steam generation device |
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| CN203478170U true CN203478170U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320583975.2U Expired - Fee Related CN203478170U (en) | 2013-09-22 | 2013-09-22 | Compact smoke waste heat recovery steam generation device |
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Cited By (2)
| 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 |
| CN111678166A (en) * | 2020-06-12 | 2020-09-18 | 江苏龙净节能科技有限公司 | Two-phase flow phase change heat absorber |
-
2013
- 2013-09-22 CN CN201320583975.2U patent/CN203478170U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN111678166A (en) * | 2020-06-12 | 2020-09-18 | 江苏龙净节能科技有限公司 | Two-phase flow phase change heat absorber |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20140922 |
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| EXPY | Termination of patent right or utility model |