CN104807027A - Flue-type exhaust heat recovery system - Google Patents
Flue-type exhaust heat recovery system Download PDFInfo
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- CN104807027A CN104807027A CN201410041063.1A CN201410041063A CN104807027A CN 104807027 A CN104807027 A CN 104807027A CN 201410041063 A CN201410041063 A CN 201410041063A CN 104807027 A CN104807027 A CN 104807027A
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- flue
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- heat exchanger
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Abstract
The invention provides a flue-type exhaust heat recovery system which is simple to build, low in price and short in construction period. The flue-type exhaust heat recovery system is characterized by comprising an underground horizontal flue, a chimney, a heat exchanger and a damper, wherein the underground horizontal flue is connected with the smoke outlet of burning equipment, the chimney protrudes underground and is connected with a horizontal flue, and an ash removal hole is formed in an embedded underground part of the chimney corresponding to an outlet of the underground horizontal flue, and a ground repair hole is formed in a connecting part between the ground part of the chimney and the ground; the heat exchanger is located on the ground, one end of the heat exchanger is connected with the ash removal hole of the chimney through an ash removal well, and the other end of the heat exchanger is connected with the ground maintenance hole of the chimney; the damper is used for blocking the underground part of the chimney when the flue-type exhaust head is recovered, so that the exhaust gas is exhausted by the chimney on the ground through the ash removal hole of the chimney, the heat exchanger and the ground maintenance hole of the chimney; furthermore, the ash removal hole of the chimney is blocked when the flue-type exhaust heat is not recovered, so that the exhaust gas is exhausted by the underground horizontal flue and the chimney.
Description
Technical field
The present invention relates to a kind of recovery system, particularly relate to a kind of recovery system of flue residue heat.
Background technology
In existing heat power station, heating plant, how to utilize the waste heat of emission gases, become the important topic of energy-saving and emission-reduction protection of the environment.
In the prior art, usually reconstruct on former furnace flue.Namely, the recovery system of existing flue residue heat has the underground horizontal flue be connected with the outlet flue of combustion apparatus, underground horizontal flue is connected with chimney, in underground, excavate native stone, separately build by-pass flue on former flue side, mounting heat exchanger in by-pass flue, in addition, the part between the both ends be connected with by-pass flue of chimney and by-pass flue install flashboard respectively, also need the interlock installed corresponding robot control system(RCS) and prevent maloperation.
When using such flue duct residual heat recovering system, close the flashboard on chimney, open the flashboard on by-pass flue, gas is discharged returning chimney via the heat exchanger in by-pass flue, when not recovery waste heat or maintenance by-pass flue and heat exchanger, can flashboard on tube wall by-pass flue and the flashboard opened on chimney, make gas, directly discharge from chimney.
But, in such flue duct residual heat recovering system, need, at mine working soil stone, to build by-pass flue, this sample loading mode needs to relate to a lot of earthwork and concrete works, in addition, needs to install gate additional and builds flue by laying bricks or stones, investment is large, and the engineering time is long, often affects heating furnace work.
Summary of the invention
The object of the invention is to propose a kind of construction for the technological deficiency existed in prior art simple, cheap, the recovery system of the flue residue heat that the duration is short.
Following technical scheme is adopted for realizing object of the present invention.
The recovery system of a kind of flue residue heat of the present invention, has: underground horizontal flue, and it is connected with the outlet flue of combustion apparatus; Chimney, it stretches into underground and is connected with described underground horizontal flue, in buried part of described chimney, be formed with deashing hole in position in opposite directions in the outlet with underground horizontal flue, be formed with ground maintenance hole at the aerial part of described chimney and the junction on ground; Heat exchanger, it is positioned at ground, and one end is connected with the deashing hole of described chimney via deashing well, and the other end is connected with the ground maintenance hole of described chimney; Flashboard, the under ground portion of its chimney described in shutoff when reclaiming flue residue heat, make waste gas via the ground maintenance hole of the deashing hole of described chimney, described heat exchanger and described chimney, discharge from being in ground chimney, when not reclaiming flue residue heat, the described deashing hole of chimney described in shutoff, makes waste gas discharge via underground horizontal flue and chimney.
In the recovery system of flue residue heat of the present invention, do not build by-pass flue in underground and carry out mounting heat exchanger, and at ground mounting heat exchanger, utilize the maintenance hole being positioned at ground being positioned at underground deashing hole and being formed on chimney originally formed on chimney, one end of heat exchanger is connected with deashing hole, the other end of heat exchanger being connected with maintenance hole, forming bypass, for absorbing the waste heat in flue.Pass through the present invention, via heat exchanger, existing deashing hole during building in former flue is connected with the maintenance hole on ground, form waste heat recovery bypass, avoid the busy at putting up installations and problem of with high investment and longer construction time that is that formed, make full use of former flue facility in addition, there will not be the sedimentation imbalance problem of new building.
In addition, in the recovery system of above-mentioned flue residue heat, preferred described underground horizontal flue is inserted in described chimney, the part be inserted in described chimney of described underground horizontal flue is formed as stepped, comprise large flue portion, middle flue portion and bottom flue portion, described large flue portion is connected with the flue collector of described underground horizontal flue, described bottom flue portion is connected with the deashing hole of described chimney, described large flue portion is connected with bottom flue portion by described middle flue portion, forms in described middle flue portion the hole be communicated with the hollow bulb of described chimney.Like this by forming stair-stepping flue to be connected with ash removing opening, thus be easy to build, construction is simple.
In addition, in the recovery system of above-mentioned flue residue heat, preferred described flashboard comprises flue shutter and heat exchanger flashboard, described flue shutter covers the hole be communicated with the hollow bulb of described chimney in described middle flue portion, and described heat exchanger flashboard covers the connecting portion of described heat exchanger and described deashing well.In addition, flue shutter is formed in middle flue portion, when reclaiming flue residue heat, the hole be communicated with the hollow bulb of chimney in flue portion in described in shutoff, when not reclaiming flue residue heat, open flue shutter, flue collector is communicated with chimney, by the suction function produced in chimney, flue gas is discharged from chimney.Described heat exchanger flashboard is used for shutoff deashing well, uses when heat exchanger keeps in repair.
In addition, in the recovery system of above-mentioned flue residue heat, with described maintenance, the pipeline that hole is connected is provided with axial flow blower at described heat exchanger.Like this, during the insufficient pressure of the waste gas in flue, by opening axial flow blower, waste gas can be attracted, thus the recovery to waste gas can be strengthened further.
Accompanying drawing explanation
Fig. 1 is the first cross-sectional schematic of the recovery system representing flue residue heat of the present invention.
Fig. 2 is the second cross-sectional schematic of the recovery system representing flue residue heat of the present invention.
Detailed description of the invention
Below, the recovery system of the flue residue heat as embodiments of the invention is described based on accompanying drawing.
Fig. 1 is the first schematic diagram of the recovery system representing flue residue heat of the present invention.Fig. 2 is the second schematic diagram of the recovery system representing flue residue heat of the present invention.
As shown in Figure 1, the recovery system of flue residue heat of the present invention has: underground horizontal flue 10, and it is connected with the outlet flue of combustion apparatus; Chimney 20, it stretches into underground and is connected with underground horizontal flue 10, in buried part of chimney 20, be formed with deashing hole 21 in position in opposite directions in the outlet with underground horizontal flue 10, be formed with ground maintenance hole 22 at the aerial part of chimney 10 and the junction on ground; Heat exchanger 30, it is positioned at ground, and one end is connected with the deashing hole 21 of chimney 20 via deashing well 90, and the other end is connected with the ground maintenance hole 22 of chimney 20; Flashboard 60,70, the under ground portion of its shutoff chimney 20 when reclaiming flue residue heat, make waste gas via the ground maintenance hole 22 of the deashing hole 21 of chimney 20, heat exchanger 30 and chimney 20, discharge from being in ground chimney 20, the deashing hole 21 of shutoff chimney 20 when not reclaiming flue residue heat, makes waste gas discharge via underground horizontal flue 10 and chimney 20.
Specifically, there is underground horizontal flue 10 and the chimney 20 stretching into underground in the recovery system of flue residue heat, this underground horizontal flue 10 comprises flue retaining wall 11, flue collector 12 and extend to the extension flue 13 of deashing hole 21 of chimney 20, extend flue 13 and be formed as stepped, comprise large flue portion 131, middle flue portion 132 and bottom flue portion 133, large flue portion 131 is connected with the flue collector 12 of underground horizontal flue 10, bottom flue portion 133 is connected with the deashing hole 21 of chimney 20, large flue portion 131 is connected with bottom flue portion 133 by middle flue portion 132, the hole be communicated with the hollow bulb of chimney 20 is formed in middle flue portion 132.
In addition, form square flashboard support 50 in middle flue portion 132, formed by heat resistance concrete, be supported on the top of the hole be communicated with the hollow bulb of chimney 20 in middle flue portion 132.The column 51 that this flashboard support 50 comprises and crossbeam 52, upper surface is formed as skewed, for supporting flue shutter 60, one end of flue shutter 60 can be connected on flashboard support 50 rotatably by rotating shaft, at the middle part of flue shutter 60, turbine and worm is installed reach opens the function of flashboard via chain connection leading screw.
In addition, the deashing hole 21 of chimney 20 is connected with deashing well 23, and deashing well 23 extends upwardly to ground, arranges the heat exchanger flashboard 70 of turnover plate type in the outlet of deashing well 23, is connected via heat exchanger flashboard 70 one end with heat exchanger 30.In addition, the other end of heat exchanger is connected with the maintenance hole 22 being positioned at earth's surface of chimney 20 via pipeline 100.
In the recovery system of flue residue heat of the present invention, do not build by-pass flue in underground and carry out mounting heat exchanger, and at ground mounting heat exchanger, utilize the maintenance hole being positioned at ground being positioned at underground deashing hole and being formed on chimney originally formed on chimney, one end of heat exchanger is connected with deashing hole, the other end of heat exchanger being connected with maintenance hole, forming bypass, for absorbing the waste heat in flue.Pass through the present invention, via heat exchanger, the existing deashing hole when building in former flue is connected with the maintenance hole on ground, form waste heat recovery bypass, avoid the busy at putting up installations and problem of with high investment and longer construction time that is that formed, make full use of former flue facility in addition, there will not be the sedimentation imbalance problem of new building.
In addition, in an embodiment of the present invention, extend flue and be formed as stepped, but be not limited thereto, other shape can be formed as, as long as can be connected with deashing hole.
In addition, in an embodiment of the present invention, form flue shutter 60 and heat exchanger flashboard 70, flue shutter is formed in middle flue portion, when reclaiming flue residue heat, the hole be communicated with the hollow bulb of chimney in flue portion in described in shutoff, when not reclaiming flue residue heat, open flue shutter, flue collector is communicated with chimney, by the suction function produced in chimney, flue gas is discharged from chimney.Described heat exchanger flashboard is used for shutoff deashing well, uses when heat exchanger keeps in repair.Two flues can be controlled by a flashboard like this, thus there will not be the problem of two flashboard needs interlockings.
In addition, in the recovery system of flue residue heat of the present invention, heat exchanger the pipeline that hole is connected can arranged axial flow blower 80 with safeguarding.Like this, during the insufficient pressure of the waste gas in flue, by opening axial flow blower, waste gas can be attracted, thus the recovery to waste gas can be strengthened further.
Above the recovery system of the flue residue heat of the preferred embodiment of the present invention is illustrated, but the present invention is not limited to above-mentioned concrete embodiment, only otherwise depart from the scope of claim, can various distortion or change be carried out.Present invention resides in the various distortion in the scope of claim and change.
Claims (4)
1. a recovery system for flue residue heat, is characterized in that, has:
Underground horizontal flue, it is connected with the outlet flue of combustion apparatus;
Chimney, it stretches into underground and is connected with described underground horizontal flue, in buried part of described chimney, be formed with deashing hole in position in opposite directions in the outlet with underground horizontal flue, be formed with ground maintenance hole at the aerial part of described chimney and the junction on ground;
Heat exchanger, it is positioned at ground, and one end is connected with the deashing hole of described chimney via deashing well, and the other end is connected with the ground maintenance hole of described chimney;
Flashboard, the under ground portion of its chimney described in shutoff when reclaiming flue residue heat, make waste gas via the ground maintenance hole of the deashing hole of described chimney, described heat exchanger and described chimney, discharge from being in ground chimney, when not reclaiming flue residue heat, the described deashing hole of chimney described in shutoff, makes waste gas discharge via underground horizontal flue and chimney.
2. the recovery system of flue residue heat according to claim 1, is characterized in that,
Described underground horizontal flue is inserted in described chimney, the part be inserted in described chimney of described underground horizontal flue is formed as stepped, comprise large flue portion, middle flue portion and bottom flue portion, described large flue portion is connected with the flue collector of described underground horizontal flue, described bottom flue portion is connected with the deashing hole of described chimney, described large flue portion is connected with bottom flue portion by described middle flue portion, forms in described middle flue portion the hole be communicated with the hollow bulb of described chimney.
3. the recovery system of flue residue heat according to claim 1 and 2, is characterized in that,
Described flashboard comprises flue shutter and heat exchanger flashboard, and described flue shutter covers the hole be communicated with the hollow bulb of described chimney in described middle flue portion, and described heat exchanger flashboard covers the connecting portion of described heat exchanger and described deashing well.
4. the recovery system of flue residue heat according to claim 1 and 2, is characterized in that, with described maintenance, the pipeline that hole is connected is provided with axial flow blower at described heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410041063.1A CN104807027B (en) | 2014-01-28 | 2014-01-28 | The recovery system of flue residue heat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410041063.1A CN104807027B (en) | 2014-01-28 | 2014-01-28 | The recovery system of flue residue heat |
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| CN104807027A true CN104807027A (en) | 2015-07-29 |
| CN104807027B CN104807027B (en) | 2018-09-07 |
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| CN201410041063.1A Active CN104807027B (en) | 2014-01-28 | 2014-01-28 | The recovery system of flue residue heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579315A (en) * | 2019-09-23 | 2019-12-17 | 武汉钢铁有限公司 | Heating furnace gas heat exchanger leak hunting device |
Citations (7)
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|---|---|---|---|---|
| JPH09126435A (en) * | 1995-10-31 | 1997-05-16 | Mitsubishi Heavy Ind Ltd | Coal burning boiler flue part drift preventing device |
| CN1392386A (en) * | 2002-08-16 | 2003-01-22 | 吴莹 | Flue gas recovering and utilizing system fofr smelting furnace |
| CN201196537Y (en) * | 2008-01-04 | 2009-02-18 | 吴承洛 | Flue gas-air heat exchange chamber |
| CN201795677U (en) * | 2010-06-23 | 2011-04-13 | 南通和达节能环保技术有限公司 | Energy-saving muffle furnace |
| CN202835402U (en) * | 2012-05-15 | 2013-03-27 | 中健铭睿（天津）工业炉有限公司 | Flue damper structure |
| CN103307620A (en) * | 2012-03-09 | 2013-09-18 | 昆山市三星机械制造有限公司 | Waste heat recovery equipment for boiler |
| CN203797681U (en) * | 2014-01-28 | 2014-08-27 | 北京华晟环能科技有限公司 | Recovery system for flue waste heat |
-
2014
- 2014-01-28 CN CN201410041063.1A patent/CN104807027B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09126435A (en) * | 1995-10-31 | 1997-05-16 | Mitsubishi Heavy Ind Ltd | Coal burning boiler flue part drift preventing device |
| CN1392386A (en) * | 2002-08-16 | 2003-01-22 | 吴莹 | Flue gas recovering and utilizing system fofr smelting furnace |
| CN201196537Y (en) * | 2008-01-04 | 2009-02-18 | 吴承洛 | Flue gas-air heat exchange chamber |
| CN201795677U (en) * | 2010-06-23 | 2011-04-13 | 南通和达节能环保技术有限公司 | Energy-saving muffle furnace |
| CN103307620A (en) * | 2012-03-09 | 2013-09-18 | 昆山市三星机械制造有限公司 | Waste heat recovery equipment for boiler |
| CN202835402U (en) * | 2012-05-15 | 2013-03-27 | 中健铭睿（天津）工业炉有限公司 | Flue damper structure |
| CN203797681U (en) * | 2014-01-28 | 2014-08-27 | 北京华晟环能科技有限公司 | Recovery system for flue waste heat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579315A (en) * | 2019-09-23 | 2019-12-17 | 武汉钢铁有限公司 | Heating furnace gas heat exchanger leak hunting device |
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| CN104807027B (en) | 2018-09-07 |
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Effective date of registration: 20220422 Address after: No. 113 podium building, 1st floor, No. 69, Zizhuyuan Road, Haidian District, Beijing 100089 Patentee after: Beijing Huasheng Zhiqing new energy Co.,Ltd. Address before: No. 9, North Fourth Ring West Road, Haidian District, Beijing 100088 2014 Patentee before: BEIJING HUASHENG HUANNENG SCIENCE & TECHNOLOGY CO.,LTD. |
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