CN203797681U - Recovery system for flue waste heat - Google Patents
Recovery system for flue waste heat Download PDFInfo
- Publication number
- CN203797681U CN203797681U CN201420054598.8U CN201420054598U CN203797681U CN 203797681 U CN203797681 U CN 203797681U CN 201420054598 U CN201420054598 U CN 201420054598U CN 203797681 U CN203797681 U CN 203797681U
- Authority
- CN
- China
- Prior art keywords
- flue
- chimney
- hole
- ground
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 36
- 239000002918 waste heat Substances 0.000 title abstract description 10
- 238000012423 maintenance Methods 0.000 claims abstract description 23
- 239000002912 waste gas Substances 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 239000000779 smoke Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Abstract
The utility model provides a recovery system for flue waste heat. The recovery system is easy to build, low in price and short in construction period. The recovery system is provided with an underground horizontal flue, a chimney, a heat exchanger and a flue shutter. The underground horizontal flue is connected with a smoke outlet of combustion equipment. The chimney stretches underground and is connected with the underground horizontal flue, an ash clearing hole is formed in the position, opposite to an outlet of the underground horizontal flue, of the underground buried part of the chimney, and a ground maintenance hole is formed in the junction portion of the ground portion 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 clearing hole of the chimney through an ash clearing well, and the other end of the heat exchanger is connected with the ground maintenance hole of the chimney. The flue shutter plugs the underground part of the chimney in the flue waste heat recovery process, waste gas is made to pass through the ash clearing hole of the chimney, the heat exchanger and the ground maintenance hole of the chimney and is discharged out of the chimney on the ground, the flue shutter is opened when the flue waste heat is not recycled, and the waste gas is discharged out of the underground horizontal flue and the chimney.
Description
Technical field
The present invention relates to a kind of recovery system, relate in particular 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, conventionally on former heating furnace flue, reconstruct.; the recovery system of existing flue residue heat has the underground horizontal flue being connected with the outlet flue of combustion apparatus; on underground horizontal flue, be connected with chimney; underground, excavate native stone, at the other another by-pass flue of building of former flue; mounting heat exchanger in by-pass flue; in addition, on the part between both ends chimney and that by-pass flue is connected and by-pass flue, flashboard is installed respectively, the interlock that also needs that corresponding robot control system(RCS) is installed and prevent maloperation.
In the time using such flue duct residual heat recovering system, close the flashboard on chimney, open the flashboard on by-pass flue, gas is discharged returning to chimney via the heat exchanger in by-pass flue, in the time of recovery waste heat not or maintenance by-pass flue and heat exchanger, flashboard on can tube wall by-pass flue and open the flashboard on chimney, makes gas, directly discharges from chimney.
But, in such flue duct residual heat recovering system, need to, at mine working soil stone, build by-pass flue, this sample loading mode need to relate to a lot of cubic metre of earth and concrete works, in addition, need 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 for the technological deficiency existing in prior art a kind of build simple, cheap, the recovery system of short flue residue heat of duration.
Adopt following technical scheme 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 described underground horizontal flue and is connected, in buried part of described chimney, being formed with deashing hole in position in opposite directions with the outlet of 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; Flue shutter, it is reclaiming when flue residue heat the under ground portion of chimney described in shutoff, make the ground maintenance hole of waste gas via the deashing hole of described chimney, described heat exchanger and described chimney, from discharging in ground chimney, in the time not reclaiming flue residue heat, open flue shutter, make waste gas via underground horizontal flue and chimney and discharge.
In the recovery system of flue residue heat of the present invention, do not carry out mounting heat exchanger at underground construction by-pass flue, and at ground mounting heat exchanger, utilize the maintenance hole that is positioned at ground that is positioned at underground deashing hole and forms originally forming on chimney on chimney, one end of heat exchanger is connected with deashing hole, the other end of heat exchanger is connected with maintenance hole, forms bypass, for absorbing the waste heat of flue.By the present invention, via heat exchanger, existing deashing hole is connected with the maintenance hole on ground during by building in former flue, form waste heat recovery bypass, avoid problem busy at putting up installations and the with high investment and longer construction time that form, make full use of in addition former flue facility, 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 being 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 middle flue portion is connected described large flue portion with bottom flue portion, form in described middle flue portion the hole being communicated with the hollow bulb of described chimney.Be connected with ash removing opening by forming stair-stepping flue like this, thereby be easy to build, construction is simple.
In addition, in the recovery system of above-mentioned flue residue heat, preferred described flue shutter covers the described middle flue hole being communicated with hollow bulb described chimney portion, the recovery system of described flue residue heat also comprises heat exchanger flashboard in addition, and described heat exchanger flashboard covers the connecting portion of described heat exchanger and described deashing well.In addition, flue shutter is formed on middle flue portion, in the time reclaiming flue residue heat, the flue hole being communicated with hollow bulb chimney portion in described in shutoff, in the time not reclaiming flue residue heat, open flue shutter, flue collector is communicated with chimney, by the suction function producing in chimney, flue gas is discharged from chimney.Described heat exchanger flashboard, for shutoff deashing well, uses in the time that heat exchanger keeps in repair.
In addition, in the recovery system of above-mentioned flue residue heat, on the pipeline being connected with described ground maintenance hole at described heat exchanger, be provided with axial flow blower.Like this, when the insufficient pressure of the waste gas in flue, can, by opening axial flow blower, attract waste gas, thereby can further strengthen the recovery to waste gas.
Brief description of the drawings
Fig. 1 is the first cross-sectional schematic that represents the recovery system of flue residue heat of the present invention.
Fig. 2 is the second cross-sectional schematic that represents the recovery system of flue residue heat of the present invention.
Detailed description of the invention
Below, the recovery system as the flue residue heat of embodiments of the invention based on brief description of the drawings.
Fig. 1 is the first schematic diagram that represents the recovery system of flue residue heat of the present invention.Fig. 2 is the second schematic diagram that represents the recovery system of 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 and is undergroundly connected with underground horizontal flue 10, in buried part of chimney 20, being formed with deashing hole 21 in position in opposite directions with the outlet of 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; Flue shutter 60, the under ground portion of its shutoff chimney 20 in the time reclaiming flue residue heat, make the ground maintenance hole 22 of waste gas via deashing hole 21, heat exchanger 30 and the chimney 20 of chimney 20, from discharging in ground chimney 20, in the time not reclaiming flue residue heat, open flue shutter 60, make waste gas via underground horizontal flue 10 and chimney 20 and discharge.
Specifically, in the recovery system of flue residue heat, there is underground horizontal flue 10 and stretch into underground chimney 20, this underground horizontal flue 10 comprises flue retaining wall 11, flue collector 12 and extend to the extension flue 13 of the deashing hole 21 of chimney 20, extending flue 13 is 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, middle flue portion 132 is connected large flue portion 131 with bottom flue portion 133, form in middle flue portion 132 hole being communicated with the hollow bulb of chimney 20.
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 that the hollow bulb with chimney 20 of middle flue portion 132 is communicated with.The column 51 that this flashboard support 50 comprises and crossbeam 52, upper surface is formed as skewed, be used 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, via chain connection leading screw and turbine and worm is installed is reached and open the function of flashboard.
In addition, the deashing hole 21 of chimney 20 is connected with deashing well 23, and deashing well 23 extends upwardly to ground, and the heat exchanger flashboard 70 of turnover plate type is set in the outlet of deashing well 23, is connected with one end of heat exchanger 30 via heat exchanger flashboard 70.In addition, the other end of heat exchanger is connected with the maintenance hole 22 that is 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 carry out mounting heat exchanger at underground construction by-pass flue, and at ground mounting heat exchanger, utilize the maintenance hole that is positioned at ground that is positioned at underground deashing hole and forms originally forming on chimney on chimney, one end of heat exchanger is connected with deashing hole, the other end of heat exchanger is connected with maintenance hole, forms bypass, for absorbing the waste heat of flue.By the present invention, via heat exchanger, the existing deashing hole in the time building in former flue is connected with the maintenance hole on ground, form waste heat recovery bypass, avoid problem busy at putting up installations and the with high investment and longer construction time that form, make full use of in addition former flue facility, there will not be the sedimentation imbalance problem of new building.
In addition, in an embodiment of the present invention, extension flue is formed as stepped, but is not limited to this, can be formed as other shape, 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 on middle flue portion, in the time reclaiming flue residue heat, the flue hole being communicated with hollow bulb chimney portion in described in shutoff, in the time not reclaiming flue residue heat, open flue shutter, flue collector is communicated with chimney, by the suction function producing in chimney, flue gas is discharged from chimney.Described heat exchanger flashboard, for shutoff deashing well, uses in the time that heat exchanger keeps in repair.Can control two flues by a flashboard like this, thus the problem that there will not be two flashboards to interlock.
In addition, in the recovery system of flue residue heat of the present invention, can on the pipeline that heat exchanger is connected with ground maintenance hole, axial flow blower 80 be set.Like this, when the insufficient pressure of the waste gas in flue, can, by opening axial flow blower, attract waste gas, thereby can further strengthen the recovery to waste gas.
The recovery system of the flue residue heat to the preferred embodiment of the present invention is illustrated above, and still, the present invention is not limited to above-mentioned concrete embodiment, only otherwise depart from the scope of claim, can carry out various distortion or change.Present invention resides in various distortion and change in the scope of claim.
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 described underground horizontal flue and is connected, in buried part of described chimney, being formed with deashing hole in position in opposite directions with the outlet of 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;
Flue shutter, it is reclaiming when flue residue heat the under ground portion of chimney described in shutoff, make the ground maintenance hole of waste gas via the deashing hole of described chimney, described heat exchanger and described chimney, from discharging in ground chimney, in the time not reclaiming flue residue heat, open flue shutter, make waste gas via underground horizontal flue and chimney and discharge.
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 being 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 middle flue portion is connected described large flue portion with bottom flue portion, form in described middle flue portion the hole being communicated with the hollow bulb of described chimney.
3. the recovery system of flue residue heat according to claim 2, is characterized in that,
Described flue shutter covers the described middle flue hole being communicated with hollow bulb described chimney portion, and the recovery system of described flue residue heat also comprises heat exchanger flashboard in addition, 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, on the pipeline being connected, is provided with axial flow blower at described heat exchanger with described ground maintenance hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054598.8U CN203797681U (en) | 2014-01-28 | 2014-01-28 | Recovery system for flue waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420054598.8U CN203797681U (en) | 2014-01-28 | 2014-01-28 | Recovery system for flue waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797681U true CN203797681U (en) | 2014-08-27 |
Family
ID=51379888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420054598.8U Expired - Fee Related CN203797681U (en) | 2014-01-28 | 2014-01-28 | Recovery system for flue waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807027A (en) * | 2014-01-28 | 2015-07-29 | 北京华晟环能科技有限公司 | Flue-type exhaust heat recovery system |
-
2014
- 2014-01-28 CN CN201420054598.8U patent/CN203797681U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807027A (en) * | 2014-01-28 | 2015-07-29 | 北京华晟环能科技有限公司 | Flue-type exhaust heat recovery system |
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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: 20140827 |