CN204421703U - A kind of deashing portable plate type heat exchanger - Google Patents
A kind of deashing portable plate type heat exchanger Download PDFInfo
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- CN204421703U CN204421703U CN201420833151.0U CN201420833151U CN204421703U CN 204421703 U CN204421703 U CN 204421703U CN 201420833151 U CN201420833151 U CN 201420833151U CN 204421703 U CN204421703 U CN 204421703U
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Abstract
The utility model discloses a kind of deashing portable plate type heat exchanger, belong to dust-laden heat smoke waste heat recovery field, comprise housing, the heat exchanger core body of enclosure interior and be separately positioned on gas approach (1) and the exhanst gas outlet (6) at heat exchanger high temp. flue two ends, it is characterized in that the flanging direction of heat exchange plate (2) is three positive one anti-, heat exchanger core body is welded to form by heat exchange plate (2) arranged in parallel, one end of heat exchanger core body three positive direction passage connects gas approach (1), its relative direction connects exhanst gas outlet (6), other direction arranges shoot door (3), one reciprocal passage two ends connect air intlet (7) and air outlet slit (8) respectively.The advantages such as it is simply novel that this device has version, easy to make, with low cost, and the high and deashing of heat transfer efficiency is convenient.
Description
Technical field
The utility model belongs to dust-laden heat smoke waste heat recovery field, is particularly useful for the waste heat recovery of high-temperature dust-containing flue gas, relates in particular to a kind of deashing portable plate type heat exchanger for the waste heat recovery of dust-laden heat smoke.
Technical background
Along with country carries forward vigorously " energy-saving and emission-reduction " strategy and policy, the awareness of saving energy of enterprise significantly improves, and initiative reducing energy consumption increases considerably, therefore, and being in great demand of market heat exchanger.But in reducing energy consumption process, inevitably run into the situation that high-temperature dust-containing flue gas needs waste heat recovery, in heat smoke, dust-laden easily causes heat exchanger to block.
With regard to present stage, (plate changes exhaust waste heat recovery device in any shape, tubulation or heat pipe) all cannot prevent equipment scaling from blocking, and deashing is comparatively difficult, make the system after reducing energy consumption cannot stable operation, and flue-gas temperature relatively high time, the cleaner of the better dust removal effect such as sack cleaner and electrostatic precipitator also cannot be used to shift to an earlier date dedusting to flue gas, and ordinary cyclones or multi-tube dust cleaner lower to the fine dusts clearance of less than 5 microns; As adopted broad passage plate heat exchanger, equipment scaling stopping state can be alleviated to some extent, but waste heat recovery effect is then had a greatly reduced quality, reason is: plate passage is excessive, in the flue gas flow channel of unit cross-sectional area, the quantity of heat exchange plate will significantly reduce, heat exchange area is not enough, does not reach the energy-saving effect of expection; As significantly increased flue gas flow channel sectional area when heat exchange area is constant, then the flow velocity of flue gas in heat exchanger declines to a great extent, flow velocity declines and causes overall heat-transfer coefficient K significantly to reduce, still do not reach the energy-saving effect of expection, and the object that industry energy conservation transformation increases heat exchanger in smoke evacuation system is exactly Mist heat recovering.
Therefore, it is simply novel, easy to make, with low cost that a kind of version is needed in high-temperature dust-containing flue gas waste heat recovery field badly, the high and deashing heat exchanger easily of heat transfer efficiency.
Summary of the invention
The purpose of this utility model is the deficiency that the above-mentioned existing heat exchanger of solution exists in dust-laden heat smoke waste heat recovery field to provide a kind of deashing plate type heat exchanger easily.
The purpose of this utility model is achieved in the following ways:
One can ash-cleaning type plate type heat exchanger, comprise housing, the heat exchanger core body of enclosure interior and be separately positioned on gas approach and the exhanst gas outlet at heat exchanger high temp. flue two ends, the flanging direction of heat exchange plate is three positive one anti-(passage intercommunication on heat exchanger core body three directions of heat exchange plate soldering group synthesis (this be three just), another backward channel and above-mentioned three front passages completely obstructed (this be anti-)), heat exchanger core body is welded to form by heat exchange plate arranged in parallel, one end of heat exchanger core body three positive direction passage connects gas approach, its relative direction connects exhanst gas outlet, other direction connects shoot door, one reciprocal passage two ends connect air intlet and air outlet slit respectively.Shoot door is a fan or fans more, and shoot door specifically can be positioned at the relative direction of air intlet and air outlet slit.Do not establish air channel.Collecting tank is provided with, the liquid outlet connected drainage mouth of collecting tank bottom shoot door.Shoot door can be set to quick opening structure form.Air duct inside is provided with multiple deflection plate.
The utility model is mainly by improving (see Fig. 1) the flanging direction of Conventional plate-type (plate pattern) heat exchanger plate, by tradition two positive two Turn up hem, (heat exchange plate the right and left is to backfin limit, a direction, reverse backfin limit, upper and lower both sides) instead (heat exchange plate three limit is to backfin limit, a direction to change three positive one into, while to reverse backfin limit) flanging: Turn up hem overlap joint full weldering formation heat exchange unit of heat exchange plate between two, the cavity that high-temperature flue gas is flowed is formed in the middle of this heat exchange unit, and between adjacent two heat exchange units, the full weldering of three positive flanging overlap joints of each relative heat exchange plate, form the cavity that air relatively-high temperature flue gas is flowed in vertical direction respectively.Passage intercommunication on heat exchanger core body three directions after welding combination, wherein two passages of relative direction are the import and export direction of dust-laden high-temperature flue gas, other direction connects shoot door, is used for clearing up in heat exchanger running the dust be attached on exhaust gases passes heat exchange plate surface; Another backward channel and above-mentioned three front passages completely obstructed, this passage is heated air side runner, and passage both sides are provided with air ports, and is provided with multiple deflection plate in air duct, in order to air flow method and increase air stream turbulence degree and see Fig. 2.
The size of the positive Turn up hem of heat exchange plate three described in the utility model determines primarily of the gas air quantity of cold and hot both sides and required heat exchange area, flanging width is preferably taken between 6-15mm, that is between plate passage generally between 12-30mm, so both can not affect heat transfer effect because plate passage is excessive, and also facilitate compressed air or water under high pressure to carry out flush clean to passage between plate simultaneously; Sheet is preferably between 0.5-1.5mm, most preferably 0.7-1.2mm, if plate is excessively thin, in manufacturing process, whole welding difficulty is too large, and plate is too thick and flanging is little again, and in flanging pressing process, difficulty strengthens.
The effect arranging deflection plate in the utility model mainly contains two and selects: 1. in order to prevent air side gas from can not cover whole plate thus the situation of minimizing effective heat exchange area; 2. increase air side flow-disturbing degree simultaneously, thus improve air side heat transfer coefficient and then improve total film coefficient of heat transfer K.
Wherein, shoot door is designed to the version of quick operating valve, convenient and swift during switch gate, and shoot door can be designed to a fan or multiple leaf door, but the overall size of shoot door preferably with the layout sizableness of heat exchange plate, can not dead angle be left when deashing like this.
In heat exchanger, heat exchange plate can horizontal or vertical or slant setting, during cleaning dust, available compression air or water under high pressure clean, during as plate horizontal positioned and flue gas and air side equal level turnover, in equipment making process, heat exchange plate can make suitable angle of inclination, be conducive to blowdown, water is discharged by collecting tank and leakage fluid dram, can not gather storage in heat exchanger inside.Angle of inclination take horizontal direction as benchmark, the inclination angle of plate and horizontal direction is not more than 15 ° in principle, can ensure that the cleaning sullage in cleaning process can flow out smoothly, clean while not having water to retain in rear flue gas drafting board sheet passage and avoided the support affecting whole heat-exchanging component.
The beneficial effects of the utility model compared with the prior art: it is simply novel that the utility model has version, easy to make, with low cost, the advantages such as the more conventional plate type heat exchanger of heat transfer efficiency high more than 35% and deashing are convenient.
Accompanying drawing explanation
Fig. 1 is heat exchange plate folded edges figure of the present utility model.
Fig. 2 is structure and the operation logic figure of the utility model heat exchange plate composition heat exchanger core body.
Fig. 3 is the top view of the utility model heat exchanger.
In figure: 1-gas approach; 2-heat exchange plate; 3-shoot door; 4-collecting tank; 5-leakage fluid dram; 6-exhanst gas outlet; 7-air intlet; 8-air outlet slit; 9-deflection plate.
Detailed description of the invention
As Figure 1-3, a kind of deashing portable plate type heat exchanger, belong to dust-laden heat smoke waste heat recovery field, comprise housing, the heat exchanger core body of enclosure interior and be separately positioned on gas approach 1 and the exhanst gas outlet 6 at heat exchanger high temp. flue two ends, the flanging direction of heat exchange plate 2 is three positive one anti-, heat exchanger core body is welded to form by heat exchange plate 2 arranged in parallel, the one end of the passage that heat exchanger core body three positive direction is formed connects gas approach 1, its relative direction connects exhanst gas outlet 6, other direction connects shoot door 3, the one passage two ends formed in the other direction connect air intlet 7 and air outlet slit 8 respectively.
Three positive anti-heat exchange plate three limits that are specially are to backfin limit, a direction, while to reverse backfin limit, during soldering group synthesis heat exchanger core body, Turn up hem overlap joint full weldering formation heat exchange unit of heat exchange plate between two, the cavity that high-temperature flue gas is flowed is formed in the middle of this heat exchange unit, and between adjacent two heat exchange units, the full weldering of three positive flanging overlap joints of each relative heat exchange plate, forms the cavity making air relatively-high temperature flue gas flow in vertical direction respectively.
Between heat exchanger plates, passage is between 12-30mm, and heat exchange plate thickness is between 0.5-1.5mm.Horizontal or vertical or the slant setting of heat exchange plate, when slant setting, be not more than 15 ° with the inclination angle of horizontal direction, shoot door 3 is a fan or fans more, and shoot door 3 is positioned at the relative direction of air intlet 7 and air outlet slit 8.Collecting tank 4 is provided with, the liquid outlet connected drainage mouth 5 of collecting tank 4 bottom shoot door 3.Shoot door 3 is set to quick opening structure form.Air duct inside is provided with multiple deflection plate 9.
Specifically be achieved like this: in the reducing energy consumption of dust-laden heat smoke, increase this heat exchanger, fume side is in parallel with this device simultaneously increases flue gas by-pass line, and gas approach parallel connection place installs and switches air-valve.Under normal circumstances, turn off bypass, open heat exchanger crosswind road, flue gas enters heat exchanger by gas approach 1, and replace to Cryogenic air side by three positive anti-heat exchange plates 2 by waste heat containing grey high-temperature flue gas, flue gas is by discharging through exhanst gas outlet 6 after heat exchange; Pure air by air intlet 7 access arrangement, by three positive anti-heat exchange plates 2 absorb in flue gas with heat, the air after intensification enters process system.When heat exchanger both sides equipment resistance fall significantly increase time, illustrate that exhaust gases passes is attached with a large amount of dust, there is the possibility that passage portion is blocked, at this moment, first flue gas is switched to by-pass line, close the anterior gas fume valve of heat exchanger, then shoot door 3 is opened, compressed air or the exhaust gases passes of giant to three positive anti-heat exchange plates 2 is utilized to clear up, the dust of attachment or sewage can be drained with leakage fluid dram 5 by the collecting tank 4 of equipment, after having cleared up, shut shoot door, again flue gas switchback is come, recover normal condition.Whole scale removal process can not more than one hour, not only simple but also convenient, and do not need to stop and do not affect the operation of whole process system.
Comparative example
Air quantity is 10000Nm
3the ash-laden gas of/h, temperature is 350 DEG C, carries out energy-conservation recovery to fume afterheat; Heat absorbing side is that (namely air capacity is all 10000Nm to the air at room temperature that tolerance is equal
3/ h; Air themperature is 20 DEG C).Following two schemes is adopted to contrast:
Scheme one, the waste heat recovery of employing legacy equipment:
In order to prevent the dust blocking heat transmission equipment in flue gas, broad passage plate heat exchanger is adopted to carry out waste heat recovery to flue gas.
Flue gas side sheet room channels designs is 40mm, when heat exchange area is 200m
2time, the heat transfer effect reached is: air themperature is heated to 170 DEG C from 20 DEG C, and flue-gas temperature drops to 210 DEG C from 350 DEG C, and corresponding temperature efficiency (or thermal efficiency) is 45%.
Scheme two, the waste heat recovery of the utility model heat exchanger:
The positive Turn up hem plate type heat exchanger of above-described embodiment deashing portable three is adopted to carry out waste heat recovery to flue gas.
Flue gas side sheet room channels designs is 14mm, and it is the same that heat exchange area catches up with the area stating broad passage plate heat exchanger, is all 200m
2time, the heat transfer effect reached is: air themperature is heated to 225 DEG C from 20 DEG C, and flue-gas temperature drops to 155 DEG C from 350 DEG C, and corresponding temperature efficiency (or thermal efficiency) is 62%.
Contrasted obviously as can be seen from above-mentioned two kinds of energy-saving schemes, scheme two is more much higher than scheme one thermal efficiency; Though plate adopts fat pipe to be unlikely to occluding device in scheme one in addition, can not thoroughly clear up the dust adhered in plate passage, along with the dust that plate adheres to gets more and more, dirtiness resistance also can be increasing, and the thermal efficiency also can be decayed.
Claims (7)
1. one kind can ash-cleaning type plate type heat exchanger, comprise housing, the heat exchanger core body of enclosure interior and be separately positioned on gas approach (1) and the exhanst gas outlet (6) at heat exchanger high temp. flue two ends, it is characterized in that the flanging direction of heat exchange plate (2) is three positive one anti-, heat exchanger core body is welded to form by heat exchange plate (2) arranged in parallel, one end of heat exchanger core body three positive direction passage connects gas approach (1), its relative direction connects exhanst gas outlet (6), other direction arranges shoot door (3), one reciprocal passage two ends connect air intlet (7) and air outlet slit (8) respectively.
2. according to claim 1 can ash-cleaning type plate type heat exchanger, it is characterized in that between heat exchanger plates, passage is between 12-30mm.
3. according to claim 1 can ash-cleaning type plate type heat exchanger, it is characterized in that heat exchange plate (2) thickness is between 0.5-1.5mm.
4. according to claim 1 can ash-cleaning type plate type heat exchanger, it is characterized in that shoot door (3) is a fan or fans more.
5. according to claim 1 can ash-cleaning type plate type heat exchanger, it is characterized in that shoot door (3) bottom is provided with collecting tank (4), the liquid outlet connected drainage mouth (5) of collecting tank (4).
6. according to claim 1 can ash-cleaning type plate type heat exchanger, it is characterized in that shoot door (3) is set to quick opening structure form.
7. according to claim 1 can ash-cleaning type plate type heat exchanger, it is characterized in that air duct inside is provided with multiple deflection plate (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833151.0U CN204421703U (en) | 2014-12-24 | 2014-12-24 | A kind of deashing portable plate type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833151.0U CN204421703U (en) | 2014-12-24 | 2014-12-24 | A kind of deashing portable plate type heat exchanger |
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| Publication Number | Publication Date |
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| CN204421703U true CN204421703U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420833151.0U Expired - Fee Related CN204421703U (en) | 2014-12-24 | 2014-12-24 | A kind of deashing portable plate type heat exchanger |
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| CN (1) | CN204421703U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534905A (en) * | 2014-12-24 | 2015-04-22 | 南京宜热纵联节能科技有限公司 | Plate heat exchanger for dust to be removed conveniently |
| CN108680048A (en) * | 2018-05-21 | 2018-10-19 | 南京宜热纵联节能科技有限公司 | A kind of more backhaul heat exchangers in energy-efficient no air duct |
| CN112933830A (en) * | 2021-01-30 | 2021-06-11 | 成都易态科技有限公司 | Heat exchange dust removal structure, heat exchange dust removal device and high-temperature dust-containing gas treatment method |
| CN114199052A (en) * | 2021-12-23 | 2022-03-18 | 北京瑞晨航宇能源科技有限公司 | Pure countercurrent heat exchanger with working condition adaptability |
-
2014
- 2014-12-24 CN CN201420833151.0U patent/CN204421703U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534905A (en) * | 2014-12-24 | 2015-04-22 | 南京宜热纵联节能科技有限公司 | Plate heat exchanger for dust to be removed conveniently |
| CN104534905B (en) * | 2014-12-24 | 2016-09-14 | 南京宜热纵联节能科技有限公司 | A kind of deashing portable plate type heat exchanger |
| CN108680048A (en) * | 2018-05-21 | 2018-10-19 | 南京宜热纵联节能科技有限公司 | A kind of more backhaul heat exchangers in energy-efficient no air duct |
| CN112933830A (en) * | 2021-01-30 | 2021-06-11 | 成都易态科技有限公司 | Heat exchange dust removal structure, heat exchange dust removal device and high-temperature dust-containing gas treatment method |
| CN114199052A (en) * | 2021-12-23 | 2022-03-18 | 北京瑞晨航宇能源科技有限公司 | Pure countercurrent heat exchanger with working condition adaptability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20161224 |