CN201837064U - Highly-efficiently waste heat recovery system with organic heat carrier boiler - Google Patents
Highly-efficiently waste heat recovery system with organic heat carrier boiler Download PDFInfo
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- CN201837064U CN201837064U CN2010205290493U CN201020529049U CN201837064U CN 201837064 U CN201837064 U CN 201837064U CN 2010205290493 U CN2010205290493 U CN 2010205290493U CN 201020529049 U CN201020529049 U CN 201020529049U CN 201837064 U CN201837064 U CN 201837064U
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Abstract
The utility model relates to a highly-efficiently waste heat recovery system with an organic heat carrier boiler, which comprises the organic heat carrier boiler, a flue and a heat regulator. An evaporator, a water preheater, an air preheater and a phase-change heat exchanger are arranged in the flue; the phase-change heat exchanger consists of an evaporating section and a condensing section; the evaporator is connected with a steam pocket to form a loop; an outlet end of the water preheater is connected with the steam pocket; the evaporating section of the phase-change heat exchanger is positioned in the flue; the condensing section of the phase-change heat exchanger is positioned in a ventilation pipe outside the flue; the ventilation pipe is communicated with the air preheater in the flue; an inlet end and an outlet end of a heat regulator casing are respectively connected with a heat conducting oil outlet pip and a heat conducting oil inlet pump of the boiler; a water outlet end of a water pipe passing through the casing is connected with the steam pocket; and a water inlet end of the water pipe is connected with the steam pocket to form a loop or connected with the outlet end of the water preheater. When the system runs under the rated design working condition of the organic heat carrier boiler, heat efficiency is high, steam output can be adjusted conveniently by the heat regulator, and stable supply can be ensured even in steam load fluctuation.
Description
Technical field
The utility model relates to a kind of boiler of organic heat carrier waste heat efficient system for reclaiming, belongs to residual heat from boiler fume and reclaims the field.
Background technology
Boiler of organic heat carrier be a kind of be the special boiler of medium with organic conduction oil or fused salt, boiler produces the high temperature organic heat carrier by fuel combustion, for the hot equipment of the usefulness that needs heat energy provides heat, and boiler oil burning back generation reaches 350 ℃ ~ 450 ℃ high-temperature flue gas.Boiler of organic heat carrier does not carry out waste heat recovery mostly or only increases air preheater recovery section fume afterheat.The exhaust gas temperature height, common more than 250 ℃, the overall thermal efficient of boiler is lower, and energy dissipation is big, does not meet energy-conservation requirement.If exhaust gas temperature is reduced to about 130 ℃, boiler thermal output can improve about 9%, therefore further rationally recycles the fume afterheat of boiler of organic heat carrier, reduces the focus that exhaust gas temperature becomes this area research.
Domestic patent ZL200710046604.X discloses a kind of complex flow that is mainly used in the band mesolow evaporimeter of steam boiler or hot-water boiler, utilizing residual heat from boiler fume to produce steam uses for the user, and introduced phase-change heat-exchanger, utilize the after-heat of flue tail end that inlet air or boiler feedwater are carried out preheating, further reduce the flue gas discharge temperature.But shortcoming is because the user is not constant to the demand of steam, particularly when boiler heat load lower, and under the situation that the steam demand amount significantly increases, supply the quantity of steam deficiency outward, certainly will exert an influence to the steam user.On the other hand, the variation of steam consumption is also unfavorable to the efficient operation of boiler.
[summary of the invention]
The purpose of this utility model provides a kind of boiler of organic heat carrier waste heat efficient system for reclaiming, with reasonable recycling fume afterheat, reduces smog discharge temperature, and can regulate the steam production of afterheat steam according to the variation of hot user's steam load.
Boiler of organic heat carrier waste heat efficient system for reclaiming, comprise boiler of organic heat carrier and flue, be provided with evaporimeter, water preheater, air preheater in the flue successively and comprise evaporator section and the phase-change heat-exchanger of condensation segment, evaporimeter is linked to be the loop by the drum outside tedge and down-comer and the flue; The port of export of water preheater links to each other with drum; The evaporator section of said phase-change heat-exchanger is positioned at flue, and condensation segment is positioned at the outer ventilation duct of flue, and the interior air preheater of this ventilation duct and flue communicates; System also comprises a heat regulator, the water pipe that said heat regulator comprises housing and passes through in the housing, and the entrance point of this housing is connected the conduction oil outlet of boiler of organic heat carrier and the hot oil pump of heat conductive oil inlet respectively with the port of export; Said water pipe one end that passes through in the housing is the water side that is connected with drum, and the other end is the heat regulator water inlet end.
Said heat regulator water inlet end is connected with another root down-comer of drum and forms the loop with drum; Another scheme is that the heat regulator water inlet end is connected with the water side of water preheater.
The water return pipeline that feeds softened water tank is equipped with in the water side of said water preheater.
Be connected with feed water by-pass and bypass valve between the water inlet of said water preheater, the water side.
Said drum steam output pipe is connected with storage heater.
Water pipe in the said heat regulator housing can be tubulation, finned tube, coiled pipe or spiral grooved tube.
System is provided with flue gas discharge temperature self-con-tained unit.
Native system utilizes the waste heat of high-temperature flue gas of boiler of organic heat carrier successively as the thermal source of evaporimeter, water preheater, air preheater and phase change heat exchanger, produce for steam and the hot water produced or life is used, the hot-air that produces is sent into boiler of organic heat carrier, improve EAT, reduce fuel consumption, fume afterheat is rationally recycled, and exhaust gas temperature reduces.The thermal source of the heat regulator of native system is used for steam regulation output from the boiler export conduction oil, to adapt to the variation of steam load; When the hot user's thermic load of organic thermal medium boiler reduced, boiler of organic heat carrier need not to weaken burning, can increase steam production by heat regulator, guaranteed the system high efficiency operation; When hot user's thermic load is constant, increase for the steam demand amount as outer, can strengthen burning, increase steam production by heat regulator.When steam consumption reduces or do not have demand, can regulate by storage heater.In addition, the self-con-tained unit that system is provided with is according to wall temperature (or the flue outlet place wall temperature) value of evaporator section, means such as bypass valve aperture by the control water preheater, can make the exhaust gas temperature of flue outlet be reduced to the flue gas acid dew point of the evaporator section wall that only is higher than phase-change heat-exchanger, promptly avoiding reaching the purpose of utilizing fume waste heat to greatest extent under the prerequisite of dewfall.Efficient was higher when native system moved under the rated designs operating mode of boiler of organic heat carrier, even during the load fluctuation of steam/heat water, still can guarantee stable supplying, reached the purpose of energy saving of system.
Description of drawings
Fig. 1 and Fig. 2 are respectively two example structure schematic diagrames of boiler of organic heat carrier waste heat organic heat carrier recovery system.
Among the figure, 1-boiler of organic heat carrier, 2-flue, 3-1-phase change heat exchanger evaporator section, 3-2-phase change heat exchanger condensation segment, 4-air preheater, 5-feed pump, 6-self-con-tained unit, the 7-water preheater, 8-heat regulator, 9-drum, the 10-storage heater, 11-tedge, 12, the 15-down-comer, the 13-evaporimeter, 14-feed water by-pass valve, 16-boiler heat conductive oil inlet pump, the 17-softened water tank, 18-water preheater back-water valve (BWV), 19-boiler conduction oil outlet valve.
The specific embodiment
Fig. 1 is the embodiment of the utility model boiler of organic heat carrier waste heat efficient system for reclaiming, and boiler of organic heat carrier 1 is provided with heat conductive oil inlet valve, heat conductive oil inlet pump 16, conduction oil outlet valve 19 and flue 2; Be provided with evaporator section 3-1, the condensation segment 3-2 of evaporimeter 13, water preheater 7, air preheater 4 and phase-change heat-exchanger in the flue 2 successively, wherein evaporator section 3-1 is positioned at flue 2, the condensation segment 3-2 of phase-change heat-exchanger is positioned at the ventilation duct outside the flue 2, and the air preheater 4 in this ventilation duct and the flue 2 communicates.The tedge 11 and the down-comer 12 of the drum 9 that evaporimeter 13 two ends and flue are outer are linked to be the loop.The water outlet of water preheater 7 feeds drum 9, is connected with storage heater 10 in the steam output pipe road of drum 9.Heat regulator 8 is a thermal source with the conduction oil from boiler 1, in this example, the water pipe that passes through in heat regulator 8 housings forms the loop by down-comer 15 and drum, returns drum after the conduction oil heat exchange intensification in water and the housing, and the conduction oil that leaves housing returns boiler 1 by boiler heat conductive oil inlet pump 16.
What Fig. 2 embodiment was different with Fig. 1 is in the heat regulator 8, and the water pipe entrance point in its housing is connected with the port of export of water preheater.
Fig. 1 and Fig. 2 embodiment all have a softened water tank 17.Water preheater 7 into and out of the end between be connected with bypass and bypass valve 14.
After feed pump 5 superchargings, enter drum 9 through water preheater 7 and feed-regulating valve 14 from the demineralized water of softened water tank 17, through down-comer 12, evaporimeter 13, tedge 11, drum 9 produces steam.Heat regulator 8 is arranged between down-comer 15 and the drum 9.Conveniently adjusted outer by heat regulator 8 for quantity of steam.Self-con-tained unit 6 is according to the wall temperature signal of evaporator section 3-1, regulate the means such as aperture of feed-regulating valve 14, change flue gas through the flue-gas temperature behind the water preheater 7, control evaporator section 3-1 wall temperature prevents that acid solution from the hidden danger of cold end corrosion taking place evaporator section 3-1 more than flue gas acid dew point.Cool ambient air feeds boiler of organic heat carrier 1 after the condensation segment 3-2 of phase-change heat-exchanger preheating, bubbling air preheater 4 heat up again, as combustion air.
Feed pump 5 in interlude, forms closed cycle by softened water tank 17, feed pump 5, feed water preheater 7, water preheater back-water valve (BWV) 18, softened water tank 17 when drum 9 is interrupted moisturizings, guarantees that feed water preheater still effectively works.
The thermal source of the heat regulator 8 of native system is used for steam regulation output, to adapt to the variation of steam load from boiler of organic heat carrier 1 outlet conduction oil; When organic thermal medium boiler 1 hot user's thermic load reduces, need not to weaken burning, can increase steam production by heat regulator 8, guarantee the system high efficiency operation; When hot user's thermic load is constant, increase for the steam demand amount as outer, can strengthen burning, increase steam production by heat regulator 8.When steam consumption reduces or do not have demand, can regulate by storage heater 10.
When organic heat carrier user did not need thermic load, boiler of organic heat carrier still can continue operation by heat regulator 8, produces steam, and this moment, boiler of organic heat carrier was equivalent to steam boiler in fact in operation.Boiler of organic heat carrier such as a 0.7MW, heat equivalent is equivalent to the steam boiler of evaporation capacity 1T/H approximately, and by suitable heat regulator, the thermic load that organic heat carrier carries can all be used for producing steam, in conjunction with the heat of flue gas waste heat recovery, about total about 1.1T/H of steam production.Obviously the adjusting surplus of boiler is very big.
Claims (8)
1. boiler of organic heat carrier waste heat efficient system for reclaiming, comprise boiler of organic heat carrier (1) and flue (2), be provided with evaporimeter (13), water preheater (7), air preheater (4) in the flue successively and comprise evaporator section (3-1) and the phase-change heat-exchanger of condensation segment (3-2), evaporimeter (13) is linked to be the loop by the drum (9) outside tedge (11) and down-comer (12) and the flue; The port of export of water preheater (7) links to each other with drum (9); The evaporator section of said phase-change heat-exchanger (3-1) is positioned at flue (2), and condensation segment (3-2) is positioned at the outer ventilation duct of flue, and the interior air preheater (4) of this ventilation duct and flue (2) communicates; System also comprises a heat regulator (8), and the water pipe that it comprises housing and passes through in the housing, the entrance point of this housing and the port of export are connected the conduction oil outlet and the heat conductive oil inlet oil pump (16) of boiler of organic heat carrier (1) respectively; Said water pipe one end that passes through in the housing is the water side that is connected with drum (9), and the other end is the heat regulator water inlet end.
2. boiler of organic heat carrier waste heat efficient system for reclaiming according to claim 1 is characterized in that said heat regulator (8) water inlet end is connected with another root down-comer (15) of drum (9) and forms the loop with drum (9).
3. boiler of organic heat carrier waste heat efficient system for reclaiming according to claim 1 is characterized in that said heat regulator (8) water inlet end is connected with the water side of water preheater (7).
4. according to claim 2 or 3 described boiler of organic heat carrier waste heat efficient system for reclaiming, it is characterized in that being connected with feed water by-pass and bypass valve (14) between the water inlet, water side of said water preheater (7).
5. according to claim 2 or 3 described boiler of organic heat carrier waste heat efficient system for reclaiming, it is characterized in that the water return pipeline that feeds softened water tank (17) is equipped with in the water side of said water preheater (7).
6. boiler of organic heat carrier waste heat efficient system for reclaiming according to claim 5 is characterized in that said drum (9) steam output pipe is connected with storage heater (10).
7. boiler of organic heat carrier waste heat efficient system for reclaiming according to claim 6 is characterized in that the water pipe in said heat regulator (8) housing is tubulation, finned tube, coiled pipe or spiral grooved tube.
8. boiler of organic heat carrier waste heat efficient system for reclaiming according to claim 7 is characterized in that being provided with flue gas discharge temperature self-con-tained unit (6).
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| CN2010205290493U CN201837064U (en) | 2010-09-14 | 2010-09-14 | Highly-efficiently waste heat recovery system with organic heat carrier boiler |
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| CN2010205290493U CN201837064U (en) | 2010-09-14 | 2010-09-14 | Highly-efficiently waste heat recovery system with organic heat carrier boiler |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278736A (en) * | 2011-08-29 | 2011-12-14 | 圣火科技(河南)有限责任公司 | Energy-saving heat accumulation boiler device and control method thereof |
| CN102538203A (en) * | 2012-01-05 | 2012-07-04 | 苏州工业园区瑞柯徕姆环保科技有限公司 | Waste heat recovering device for conduction oil furnace |
| CN102537917A (en) * | 2012-02-02 | 2012-07-04 | 王海波 | Boiler smoke-gas residual-heat recovering device with temperature regulator |
| CN102563874A (en) * | 2012-01-12 | 2012-07-11 | 苏州工业园区瑞柯徕姆环保科技有限公司 | Internal circulation waste heat recycling device of heat conducting oil furnace with temperature regulator |
| CN102620428A (en) * | 2012-01-05 | 2012-08-01 | 苏州工业园区瑞柯徕姆环保科技有限公司 | Internal-circulation waste heat recovery device for heat-conducting oil furnace |
| WO2014107912A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Low-pressure steam recovery superheating system |
| CN104075303A (en) * | 2014-07-16 | 2014-10-01 | 山东石大胜华化工集团股份有限公司 | Flue gas waste-heat utilization device for thermal oil furnace |
| CN105605776A (en) * | 2016-03-03 | 2016-05-25 | 杭州锅炉集团股份有限公司 | Heat transfer oil heat-exchanging energy-saving system |
| CN108168102A (en) * | 2017-12-04 | 2018-06-15 | 新奥泛能网络科技股份有限公司 | High-temperature heating equipment |
| CN110578931A (en) * | 2019-07-31 | 2019-12-17 | 西安航天源动力工程有限公司 | System and method for adjusting temperature of primary air and secondary air by utilizing condensed water to improve air heater |
| CN110822923A (en) * | 2019-09-30 | 2020-02-21 | 江苏华洋新思路能源装备股份有限公司 | Waste heat recovery system of petrochemical heating furnace |
| CN106382745B (en) * | 2016-08-25 | 2020-03-20 | 国网上海综合能源服务有限公司 | Automatic energy-saving boiler device |
| CN112628700A (en) * | 2020-12-01 | 2021-04-09 | 中国船舶重工集团公司第七0三研究所 | Heat conduction oil and water vapor dual-medium co-production type waste heat utilization system |
| CN114485139A (en) * | 2022-01-27 | 2022-05-13 | 机械工业第四设计研究院有限公司 | Heat conduction oil centralized heating system for coating production line |
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2010
- 2010-09-14 CN CN2010205290493U patent/CN201837064U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102278736A (en) * | 2011-08-29 | 2011-12-14 | 圣火科技(河南)有限责任公司 | Energy-saving heat accumulation boiler device and control method thereof |
| CN102538203A (en) * | 2012-01-05 | 2012-07-04 | 苏州工业园区瑞柯徕姆环保科技有限公司 | Waste heat recovering device for conduction oil furnace |
| CN102620428A (en) * | 2012-01-05 | 2012-08-01 | 苏州工业园区瑞柯徕姆环保科技有限公司 | Internal-circulation waste heat recovery device for heat-conducting oil furnace |
| CN102538203B (en) * | 2012-01-05 | 2013-10-23 | 苏州工业园区瑞柯徕姆环保科技有限公司 | Waste heat recovering device for conduction oil furnace |
| CN102563874A (en) * | 2012-01-12 | 2012-07-11 | 苏州工业园区瑞柯徕姆环保科技有限公司 | Internal circulation waste heat recycling device of heat conducting oil furnace with temperature regulator |
| CN102537917A (en) * | 2012-02-02 | 2012-07-04 | 王海波 | Boiler smoke-gas residual-heat recovering device with temperature regulator |
| WO2014107912A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Low-pressure steam recovery superheating system |
| CN104075303A (en) * | 2014-07-16 | 2014-10-01 | 山东石大胜华化工集团股份有限公司 | Flue gas waste-heat utilization device for thermal oil furnace |
| CN105605776A (en) * | 2016-03-03 | 2016-05-25 | 杭州锅炉集团股份有限公司 | Heat transfer oil heat-exchanging energy-saving system |
| CN105605776B (en) * | 2016-03-03 | 2018-08-28 | 杭州锅炉集团股份有限公司 | Conduction oil heat exchange energy conserving system |
| CN106382745B (en) * | 2016-08-25 | 2020-03-20 | 国网上海综合能源服务有限公司 | Automatic energy-saving boiler device |
| CN108168102A (en) * | 2017-12-04 | 2018-06-15 | 新奥泛能网络科技股份有限公司 | High-temperature heating equipment |
| CN110578931A (en) * | 2019-07-31 | 2019-12-17 | 西安航天源动力工程有限公司 | System and method for adjusting temperature of primary air and secondary air by utilizing condensed water to improve air heater |
| CN110822923A (en) * | 2019-09-30 | 2020-02-21 | 江苏华洋新思路能源装备股份有限公司 | Waste heat recovery system of petrochemical heating furnace |
| CN112628700A (en) * | 2020-12-01 | 2021-04-09 | 中国船舶重工集团公司第七0三研究所 | Heat conduction oil and water vapor dual-medium co-production type waste heat utilization system |
| CN114485139A (en) * | 2022-01-27 | 2022-05-13 | 机械工业第四设计研究院有限公司 | Heat conduction oil centralized heating system for coating production line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20150914 |
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| EXPY | Termination of patent right or utility model |