CN103438472A - Waste heat recovery energy-saving device applicable to boiler chimney and chimney comprising same - Google Patents
Waste heat recovery energy-saving device applicable to boiler chimney and chimney comprising same Download PDFInfo
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- CN103438472A CN103438472A CN2013103948158A CN201310394815A CN103438472A CN 103438472 A CN103438472 A CN 103438472A CN 2013103948158 A CN2013103948158 A CN 2013103948158A CN 201310394815 A CN201310394815 A CN 201310394815A CN 103438472 A CN103438472 A CN 103438472A
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- chimney
- hairbrush
- conducting ring
- seal disc
- circle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The invention aims to provide a waste heat recovery energy-saving device applicable to a boiler chimney and a chimney comprising the same. The waste heat recovery energy-saving device applicable to the boiler chimney comprises an upper conducting ring and a lower conducting ring, wherein a heat exchange pipe is mounted between the upper conducting ring and the lower conducting ring; the upper conducting ring and the lower conducting ring both are in hollow structures, and are communicated with the heat exchange pipe; the upper conducting ring is fixed in an upper position inside the chimney through an upper connecting plate; the lower conducting ring is fixed under a lower position inside the chimney through a lower connecting plate; a water inlet and a water outlet are formed in the upper conducting ring, respectively. The chimney comprising the waste heat recovery energy-saving device applicable to the boiler chimney is characterized in that the section of the inner wall of the chimney is circular, the diameter of the inner wall of the chimney at the upper conducting ring is greater than the diameter of the inner wall of the chimney at other part, and the upper end portion of a guide rail is located at the upper conducting ring. The waste heat recovery energy-saving device applicable to a boiler chimney is capable of increasing the temperature difference during heat exchange; therefore, the temperature rise speed of water in the heat exchange pipe is increased.
Description
Technical field
What the present invention relates to is a kind of waste heat recovering energy conserving device and the chimney that comprises this kind of energy saver.
Background technology
The energy is the important substance basis of human survival and development, and along with the further expansion of economic development and economic scale, energy demand will increase with fast speed.The energy is quite to grow at present and in the future in the period, the outstanding bottleneck of restriction socio-economic development, for alleviating the energy bottleneck restriction, just need to increase supply, but energy resources are limited, to increase supply and can be subject to the restriction of each side condition, basic method is to adhere to that exploitation and saving develop simultaneously, the policy of energy conservation priority, carry forward vigorously energy-saving and cost-reducing policy, improve efficiency of energy utilization.
Existing boiler smoke-gas residual-heat recovering device normally is installed in boiler outlet flue place, there is no the dust cleaning function, equipment component needs extra power source and relevant device, and this will make the early investment of equipment larger, can not reach good energy-saving effect.On the one hand, can produce condensed water on the surface of heat-exchange tube owing to flowing through when flue gas in boiler afterheat recovering device runs into the heat-exchange tube of low temperature, condensed water easily flows into boiler internal, it is acid that this water is, heat-exchange tube and boiler surfaces are had to severe corrosive, can reduce the life-span of heat-exchange tube and boiler; On the other hand, owing to containing a large amount of dust in flue gas, when running into moist heat-exchange tube, it can be adsorbed on the heat-exchange tube surface, through accumulation for a long time, the dust be adsorbed on heat-exchange tube can be thickeied gradually, the heat transference efficiency of heat-exchange tube is reduced greatly, affect the organic efficiency of heat-exchange tube to waste heat in chimney.In addition, existing boiler smoke-gas residual-heat recovering device is that a plurality of heat-exchange tubes are welded into to a casing, inconvenient maintenance and inspection, and while causing it to use in the later stage, maintenance cost is high.
Summary of the invention
The object of the present invention is to provide and can realize after-heat high efficiente callback utilization in chimney can be to the waste heat recovering energy conserving device that is adapted to boiler chimney of the timely automated cleaning of dust of heat-exchange tube outer wall and the chimney that comprises this device.
The object of the present invention is achieved like this:
The present invention is adapted to the waste heat recovering energy conserving device of boiler chimney, it is characterized in that: comprise conducting ring, lower conducting ring, between upper conducting ring and lower conducting ring, heat-exchange tube is installed, upper conducting ring and lower conducting ring are hollow structure, and all with heat-exchange tube, be connected, upper conducting ring is fixed on the top position of chimney inside by upper junction plate, lower conducting ring is fixed on the lower position of chimney inside by lower connecting plate, on upper conducting ring, water inlet and delivery port is set respectively.
The waste heat recovering energy conserving device that the present invention is adapted to boiler chimney can also comprise:
1, between upper conducting ring and lower conducting ring, seal disc is set, annular hairbrush is installed on seal disc, heat-exchange tube is through the annular hairbrush on seal disc, slide block is installed at the seal disc edge, slide block matches with guide rail, guide rail is fixed on inner wall of stack, thereby seal disc moves and can move up and down in chimney by slide block on guide rail.
2, between upper conducting ring and lower conducting ring, guide post is set, guide post is through the center of seal disc, seal disc coordinates with guide post by fairlead, described slide block comprises three, three slide blocks are evenly distributed on the circumference of seal disc, three slide blocks respectively be fixed on inner wall of stack on three guide rails match.
3, the gap between annular hairbrush and heat-exchange tube is d, 0 ﹤ d≤5cm.
4, described annular hairbrush comprises hairbrush upper semi-circle, hairbrush lower half circle, hairbrush upper semi-circle, hairbrush lower half circle are loop configuration, hairbrush upper semi-circle lower end arranges cannelure, the hairbrush lower half circle is arranged in the cannelure of hairbrush upper semi-circle, hairbrush upper semi-circle, hairbrush lower half circle are fixed by screws on seal disc, and hairbrush upper semi-circle inwall is installed felt.
The chimney that the present invention comprises the waste heat recovering energy conserving device that is adapted to boiler chimney, it is characterized in that: between upper conducting ring and lower conducting ring, seal disc is set, annular hairbrush is installed on seal disc, heat-exchange tube is through the annular hairbrush on seal disc, slide block is installed at the seal disc edge, slide block matches with guide rail, and guide rail is fixed on inner wall of stack, thereby seal disc moves and can move up and down in chimney by slide block on guide rail; The cross section of inner wall of stack is circular, and the inner wall of stack diameter at upper conducting ring place is greater than the inner wall of stack diameter at other position, and the upper-end part of driving of guide rail is in upper conducting ring place.
The chimney that the present invention comprises the waste heat recovering energy conserving device that is adapted to boiler chimney can also comprise:
1,, except upper conducting ring place, the distance of all the other positions of inner wall of stack and seal disc is L, 0 ﹤ L≤5cm.
2, the position that is positioned at the waste heat recovering energy conserving device on the chimney outer wall offers access hole, in the chimney bottom, offers discharge outlet.
Advantage of the present invention is: it uses automatic cleaning apparatus to clear up in time the dust that is adsorbed on the heat-exchange tube surface and the acid condensate water that condenses in the heat-exchange tube surface, the heat transference efficiency of heat-exchange tube is improved, not only realized the high efficiente callback of waste gas, also avoided the corrosion of acid condensate water to heat-exchange tube and boiler, made greatly improve the service life of the heat-exchange tube of waste-heat recovery device; When installing, heat-exchange tube adopts detachable the installation, Clean Brush for cleaning is used screw to be arranged on seal disc, after heat-exchange tube or hairbrush damage, can be by the access hole on chimney, use spanner to be convenient for changing it, and whole detaching equipments, Renewal process is simple, processing ease, save time; The curved design of chimney can also prevent that condensate return from entering boiler internal, and equipment is caused to damage, improves the service life of equipment.This device can seal the flue gas under seal disc up for safekeeping a period of time, and the temperature difference in the time of can improving heat exchange has promoted the programming rate of water in heat-exchange tube; This device is used the self-contained energy of flue gas that cleaning device is pumped, and has reduced the quantity of equipment, without the external world, provides power, and this early investment that has not only reduced equipment can also be saved the energy in use, and can realize energy-conservation purpose.
The accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is adapted to the waste heat recovering energy conserving device of boiler chimney;
Fig. 2 is seal disc structure chart of the present invention;
Fig. 3 is hairbrush scheme of installation of the present invention;
The scheme of installation that Fig. 4 is the present invention's chimney of comprising the waste heat recovering energy conserving device that is adapted to boiler chimney.
The specific embodiment
Below in conjunction with accompanying drawing, for example the present invention is described in more detail:
In conjunction with Fig. 1～4, the core that energy-conservation part is this device, mainly be comprised of boiler 23, gas outlet 27, chimney 1, access hole 26, heat-exchange tube 13, internal thread pipe joint 14, lower conducting ring 2, upper conducting ring 5, water inlet 8, delivery port 9, connecting plate 6, connecting plate 28, setscrew 29, blower fan 22; In this device, chimney is positioned at the oblique upper of boiler, by outlet flue, with boiler, be connected, energy saver is used connecting plate 6 and setscrew 29 to be arranged in the chimney near chimney 1 and 27 junctions, gas outlet, and access hole 26 of Position Design of energy saver is installed on chimney.At the air inlet of boiler, blower fan 22 has been installed, its not only can make fuel can be in boiler fully burning can also increase the pressure of gas outlet gas, for the motion of seal disc 12 provides larger power.In the annular hairbrush 17 first many heat-exchange tubes 13 inserted on seal disc 12 when energy saver is installed, in the horizontal direction, heat-exchange tube 13 adopts and is circular layout, thisly be furnished with the circulation that is beneficial to flue gas and the recovery of heat, the upper end of many parallel heat-exchange tubes 13 is used internal thread pipe joint 14 to be connected on conducting ring 5, the lower end of heat-exchange tube is used internal thread pipe joint 14 to be connected on lower conducting ring 2, upper and lower conducting ring is used coupling expansion screw and connecting plate 6 to be arranged on the inwall of chimney 1, when heat-exchange tube 13 is installed, what not only will guarantee heat-exchange tube 13 parallelly also will guarantee the parallel of whole device and chimney 1 center line.
Energy-conservation some work principle:
The waste gas of burning enters in chimney 1 by the gas outlet 27 on boiler 23 tops, to energy saver, provides heat.Vertically be provided with a plurality of parallel heat-exchange tubes 13 in chimney 1, all heat-exchange tube 13 connects into by upper conducting ring 5 and lower conducting ring 2 pipeline that an inside communicates, cold water flows into energy saver from water inlet 8 from outside, when flowing through heat-exchange tube 13, carry out heat exchange with flue gas, use the waste heat of flue gas to cool water heating, cold water flows out from delivery port 9 after being heated to normal temperature.When energy saver is worked, the flue gas of flowing through in boiler afterheat recovering device can constantly produce condensed water on the surface of heat-exchange tube after cooling, along with the increase of condensed water, gather gradually in the groove of chimney lower end, and be discharged in the outer cesspool of equipment and process by discharge outlet 24.When equipment breaks down or need more Brusher being able to change bristles 17 and heat-exchange tube 13, can be by access hole 26 to its maintenance.
In conjunction with Fig. 1,2,3 and 4, cleaning part mainly is comprised of guide post 3, flange 7, flange 15, fairlead 4, guide rail 10, slide block 11, seal disc 12, hairbrush 17, felt 19, hairbrush upper semi-circle 20, hairbrush lower half circle 21, screw 18, discharge outlet 24.The critical component of this device is seal disc 12, seal disc 12 is fixing for hairbrush 17 also for the sealing of gas not only, in order to guarantee the pressure of seal disc 12 lower surfaces, seal disc 12 will guarantee that in assembling process hole on seal disc 12 and the gap of heat-exchange tube 13 are less than 5mm, the gap of seal disc 12 cylindricals and chimney 1 inwall is less than 5mm, a plurality of circular holes are arranged on seal disc 12, for hairbrush 17 being installed and being facilitated heat-exchange tube 13 to pass through.Be evenly equipped with three parallel rail plates on the circumference of seal disc 12, slide block 11 is arranged on reinforcement 16 positions of seal disc 12, and guide rail 10 is arranged on the inwall of chimney 1, when mounting guide rail 10, will guarantee the parallel of three guide rails.In order to make seal disc 12 energy parallel motions, use a guider at seal disc 12 center, guide post 3 upper ends are used flange 7 to be arranged on conducting ring 5, the guide post lower end is used flange 15 to be arranged on lower conducting ring 2, in order to reach designing requirement, the gases at high pressure that assurance is sealed under seal disc 12 when seal disc 12 moves to upper end can be discharged, and at the upper position of energy saver, the internal diameter of chimney 1 is greater than the internal diameter of its lower end chimney 1.
Cleaning part is mainly used 17 pairs of heat-exchange tube surface cleaning of hairbrush, and hairbrush 17 is fixed on seal disc 12 by screw 18, and felt 19 is arranged on hairbrush 17.Hairbrush 17 belongs to running stores, easy to wear in use, so it is for convenience detach that hairbrush 17 is designed to two semicircular structures, hairbrush is comprised of hairbrush upper semi-circle 20 and hairbrush lower half circle 21, and hairbrush upper semi-circle 20 is fixed on seal disc 12 together with screw 18 with hairbrush lower half circle 21, after some hairbrush 17 are worn, back out screw 18 by access hole 26, to its single replacing, and will its whole replacings, not only saved cost but also made to dismantle more convenient.
The cleaning part operation principle:
The motion of cleaning part is to utilize the pressure energy of gas and himself gravity to realize.For seal disc 12 can be pumped smoothly, in disc centre, use guider to be led to it, and three parallel rail plates cooperation guiders evenly are installed on the seal disc circumference and are realized that together the orientation of seal disc 12 moves back and forth.When work, under the effect of blower fan 22, air stream is through boiler 23, and entered the inside of chimney 1 by gas outlet 27, along with flue gas, constantly enter in chimney 1 and the continuous rising of chimney 1 interior flue-gas temperature, the pressure of seal disc 12 lower gas raises gradually, in the top and bottom of seal disc 12, produces certain pressure differential, under atmospheric effect, seal disc 12 is risen; On energy saver top, the internal diameter of chimney 1 is suitably expanded, the high pressure flue gas that sealed dish 12 is sealed up for safekeeping after seal disc 12 is elevated to this position is discharged, the pressure differential of its top and bottom disappears, drop to bottom at Action of Gravity Field lower seal dish 12 own, thereby realized moving up and down of seal disc, under the drive of seal disc, hairbrush 17 has been realized cleaning the heat-exchange tube group.
Claims (9)
1. be adapted to the waste heat recovering energy conserving device of boiler chimney, it is characterized in that: comprise conducting ring, lower conducting ring, between upper conducting ring and lower conducting ring, heat-exchange tube is installed, upper conducting ring and lower conducting ring are hollow structure, and all with heat-exchange tube, be connected, upper conducting ring is fixed on the top position of chimney inside by upper junction plate, lower conducting ring is fixed on the lower position of chimney inside by lower connecting plate, on upper conducting ring, water inlet and delivery port is set respectively.
2. the waste heat recovering energy conserving device that is adapted to boiler chimney according to claim 1, it is characterized in that: between upper conducting ring and lower conducting ring, seal disc is set, annular hairbrush is installed on seal disc, heat-exchange tube is through the annular hairbrush on seal disc, slide block is installed at the seal disc edge, slide block matches with guide rail, and guide rail is fixed on inner wall of stack, thereby seal disc moves and can move up and down in chimney by slide block on guide rail.
3. the waste heat recovering energy conserving device that is adapted to boiler chimney according to claim 2, it is characterized in that: between upper conducting ring and lower conducting ring, guide post is set, guide post is through the center of seal disc, seal disc coordinates with guide post by fairlead, described slide block comprises three, three slide blocks are evenly distributed on the circumference of seal disc, three slide blocks respectively be fixed on inner wall of stack on three guide rails match.
4. according to the described waste heat recovering energy conserving device that is adapted to boiler chimney of claim 2 or 3, it is characterized in that: the gap between annular hairbrush and heat-exchange tube is d, 0 ﹤ d≤5cm.
5. according to the described waste heat recovering energy conserving device that is adapted to boiler chimney of claim 2 or 3, it is characterized in that: described annular hairbrush comprises hairbrush upper semi-circle, hairbrush lower half circle, hairbrush upper semi-circle, hairbrush lower half circle are loop configuration, hairbrush upper semi-circle lower end arranges cannelure, the hairbrush lower half circle is arranged in the cannelure of hairbrush upper semi-circle, hairbrush upper semi-circle, hairbrush lower half circle are fixed by screws on seal disc, and hairbrush upper semi-circle inwall is installed felt.
6. the waste heat recovering energy conserving device that is adapted to boiler chimney according to claim 4, it is characterized in that: described annular hairbrush comprises hairbrush upper semi-circle, hairbrush lower half circle, hairbrush upper semi-circle, hairbrush lower half circle are loop configuration, hairbrush upper semi-circle lower end arranges cannelure, the hairbrush lower half circle is arranged in the cannelure of hairbrush upper semi-circle, hairbrush upper semi-circle, hairbrush lower half circle are fixed by screws on seal disc, and hairbrush upper semi-circle inwall is installed felt.
7. one kind comprises the chimney that is adapted to the waste heat recovering energy conserving device of boiler chimney claimed in claim 1, it is characterized in that: between upper conducting ring and lower conducting ring, seal disc is set, annular hairbrush is installed on seal disc, heat-exchange tube is through the annular hairbrush on seal disc, slide block is installed at the seal disc edge, slide block matches with guide rail, and guide rail is fixed on inner wall of stack, thereby seal disc moves and can move up and down in chimney by slide block on guide rail; The cross section of inner wall of stack is circular, and the inner wall of stack diameter at upper conducting ring place is greater than the inner wall of stack diameter at other position, and the upper-end part of driving of guide rail is in upper conducting ring place.
8. the chimney that comprises the waste heat recovering energy conserving device that is adapted to boiler chimney according to claim 7 is characterized in that: except upper conducting ring place, the distance of all the other positions of inner wall of stack and seal disc is L, 0 ﹤ L≤5cm.
9. according to the described chimney that comprises the waste heat recovering energy conserving device that is adapted to boiler chimney of claim 7 or 8, it is characterized in that: the position that is positioned at the waste heat recovering energy conserving device on the chimney outer wall offers access hole, in the chimney bottom, offers discharge outlet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310394815.8A CN103438472B (en) | 2013-09-03 | 2013-09-03 | The waste heat recovering energy conserving device being adapted to boiler chimney and the chimney comprising this device |
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| CN201310394815.8A CN103438472B (en) | 2013-09-03 | 2013-09-03 | The waste heat recovering energy conserving device being adapted to boiler chimney and the chimney comprising this device |
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| CN103438472A true CN103438472A (en) | 2013-12-11 |
| CN103438472B CN103438472B (en) | 2017-01-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323051A (en) * | 2016-11-15 | 2017-01-11 | 河南科技大学第附属医院 | Novel energy-saving heat exchanger |
| CN108489306A (en) * | 2018-03-29 | 2018-09-04 | 华北电力大学（保定） | A kind of heat exchanger of solar energy earth source heat pump |
| CN110081722A (en) * | 2019-04-25 | 2019-08-02 | 四川陆亨能源科技有限公司 | A kind of efficient waste-heat boiler |
| JP2020148452A (en) * | 2019-03-13 | 2020-09-17 | アルファ−ラヴァル・コーポレート・アーベー | boiler |
| CN113081835A (en) * | 2021-04-13 | 2021-07-09 | 成都中医药大学附属医院 | Plaster decocting device |
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| CN1541132A (en) * | 2001-08-10 | 2004-10-27 | ���ʿ����о�����˾ | Process to recover energy from hot gas |
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| CN102322650A (en) * | 2011-07-14 | 2012-01-18 | 李念国 | Membrane wall flue gas waste heat absorption device of vertical boiler chimney |
| CN202149503U (en) * | 2011-07-14 | 2012-02-22 | 李念国 | Device for absorbing waste heat of flue gas and with film type chimney wall for vertical boiler utilizing flue gas waste heat |
| CN203501201U (en) * | 2013-09-03 | 2014-03-26 | 哈尔滨工程大学 | Afterheat recovery energy-saving device suitable for boiler chimney and chimney comprising t afterheat recovery energy-saving device |
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2013
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| US4766952A (en) * | 1985-11-15 | 1988-08-30 | The Furukawa Electric Co., Ltd. | Waste heat recovery apparatus |
| CN1541132A (en) * | 2001-08-10 | 2004-10-27 | ���ʿ����о�����˾ | Process to recover energy from hot gas |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323051A (en) * | 2016-11-15 | 2017-01-11 | 河南科技大学第附属医院 | Novel energy-saving heat exchanger |
| CN108489306A (en) * | 2018-03-29 | 2018-09-04 | 华北电力大学（保定） | A kind of heat exchanger of solar energy earth source heat pump |
| JP2020148452A (en) * | 2019-03-13 | 2020-09-17 | アルファ−ラヴァル・コーポレート・アーベー | boiler |
| CN110081722A (en) * | 2019-04-25 | 2019-08-02 | 四川陆亨能源科技有限公司 | A kind of efficient waste-heat boiler |
| CN110081722B (en) * | 2019-04-25 | 2023-12-26 | 四川陆亨能源科技有限公司 | High-efficient exhaust-heat boiler |
| CN113081835A (en) * | 2021-04-13 | 2021-07-09 | 成都中医药大学附属医院 | Plaster decocting device |
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