CN104676619A - Device combining fuel gas boiler chimney and spraying type smoke waste heat recycling component - Google Patents
Device combining fuel gas boiler chimney and spraying type smoke waste heat recycling component Download PDFInfo
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- CN104676619A CN104676619A CN201510042413.0A CN201510042413A CN104676619A CN 104676619 A CN104676619 A CN 104676619A CN 201510042413 A CN201510042413 A CN 201510042413A CN 104676619 A CN104676619 A CN 104676619A
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- waste heat
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- chimney
- collecting
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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
A device combining a fuel gas boiler chimney and a spraying type smoke waste heat recycling component is mainly characterized in that the lower end of the chimney is connected with the small-diameter upper end of a sectional-cone-shaped connecting pipe, the large-diameter lower end of the connecting pipe is connected with the upper-end opening of the shell of the waste heat recycling component, the vertical shell is provided with a smoke inlet in the lower portion, the lower end of the shell is connected with the upper-end opening of a water collecting tank, the shell connected with the opening of the water collecting tank is provided with an overflow opening, the water collecting tank is provided with a water discharge outlet which is connected with the heat medium inlet of a dividing wall type heat exchanger through a circulating pump and a guide pipe, the cooled low-temperature water discharged from the heat medium outlet of the dividing wall type heat exchanger enters a water distribution system, the water distribution system is connected with nozzles disposed on the upper portion in the shell, and a filler layer is disposed in the shell below the nozzles. The device having the same fuel gas boiler smoke waste heat recycling capability in the prior art is small in floor space, low in investment cost and evident in power saving effect.
Description
Technical field
The present invention relates to a kind of gas fired-boiler fume afterheat degree of depth retracting device.
Background technology
Along with rapid economic development, energy growing tension, people more and more focus on the waste heat recovery of boiler exhaust gas, the condensing units of especially gas fired-boiler smoke evacuation, as the utilization of secondary energy sources, become most potentiality in the strategy of China's energy-saving and emission-reduction research direction.At present, dominant technology direction both at home and abroad in gas fired-boiler flue gas condensing recuperation of heat field is the deep temperature reduction (30 DEG C) utilizing heat pump techniques to realize smoke evacuation, corrosion (dew point corrosion) to evaporator with heat pump after steam condensation in flue gas, need to arrange efficient, corrosion resistant smoke heat replacing device, such as fountain smoke heat replacing device, shower water is utilized to extract waste heat from flue gas, as the low-grade heat source of heat pump.Normal practice be by this device and boiler chimney arranged apart, because boiler exhaust gas volume flow is large, the type device volume is huge, usual existing boiler on-site land used is nervous, become the real bottleneck problem of fume afterheat degree of depth recovery technology transformation, and flue booster fan is held open state, deficiency in economic performance when not Mist heat recovering operating mode always.
Summary of the invention
The object of the present invention is to provide occupation area of equipment is little, investment cost is low a kind of gas fired-boiler chimney and the two-in-one device of fountain flue gas waste heat recovery assembly.The present invention's formation one that mainly gas fired-boiler chimney and waste heat recovery assembly is connected as a single entity is chimney and the device of waste heat recovery.
The present invention mainly comprises: chimney, connecting leg and waste heat recovery assembly.Wherein, chimney is identical with existing chimney is cylinder, and its lower end is connected with the small-bore upper end of truncated cone shape connecting leg, and connecting leg heavy caliber lower end is connected with waste heat recovery package shell body upper end open.This shell body vertically arranged is tubular, and bottom is established into mouth, and shell body lower end is connected with collecting-tank upper end open, and the shell body be connected with collecting-tank upper shed is provided with overfall, to be discharged by unnecessary condensed water.Discharge outlet established by above-mentioned collecting-tank, it is connected with dividing wall type heat exchanger thermal medium entrance by circulating pump and conduit, as the low-grade heat source of heat pump, water at low temperature after the cooling that dividing wall type heat exchanger thermal medium outlet is discharged enters water distribution system, and this water distribution system is connected with the nozzle being located at shell body internal upper part.A through hole also established by best collecting-tank, it is connected with online pH value monitoring device by conduit, when pH value reaches certain limit value, by signal feedback to control system, control system then starts associated mechanisms and throw in alkaline drug in collecting-tank, guarantee that shower water is alkalescent, be of value to the absorption to SO2, NOx in flue gas.Some packing layers are provided with in housing below nozzle, best filler is resistant to elevated temperaturesly revolve louvered stainless steel helices, wherein blinds entirety is rectangle, rely on serrated metal spine support, around circular filler is fixing filler, whole filler block supports is on I-steel, I-steel welds with apparatus casing, I-steel is provided with keel sliding rail, the keel be located on this sliding rail are connected with motor by Offset slider-crank mechanism, louvered stainless steel helices is connected with zigzag keel, its adjustable shutter angle that horizontally slips, when waste heat recovery operating mode, blinds direction and device center line are 45° angle, when not Mist heat recovering operating mode, louvered filler is opening, is 0 ° of angle with device center line, can reduce the cigarette collateral resistance of device.Best, arrange demister in chimney, rely on gravity with the effect of inertia, water smoke to be dripped and be separated with flue gas, the water droplet of collection flows into fountain smoke heat replacing device along chimney, avoids the waste of water resource.
The course of work of the present invention is roughly as follows: the flue gas that gas fired-boiler is discharged enters in waste heat recovery package shell body through entering mouth, the water direct contact heat-exchanging sprayed with the nozzle of stainless steel helices and water distribution system in uphill process, up flue gas is discharged by connecting leg, demister and chimney after heat exchange cooling; Descending low-temp. spraying trickle falls into collecting-tank after heating up with flue gas heat exchange, delivers to the low-grade heat source of dividing wall type heat exchanger as heat pump by circulating pump, returns water distribution system and realize circulated sprinkling after cooling.
The present invention compared with prior art tool has the following advantages: although the present invention's occupation area of equipment is little, investment cost is low, but it is same as the prior art to the waste heat recovery ability of gas fired-boiler flue gas, this technology is combined with heat pump techniques, exhaust gas temperature can be down to less than 30 DEG C, and then the natural gas energy resource utilization ratio of gas fired-boiler is improved more than 10%, and flue booster fan can be closed when not Mist heat recovering operating mode, reduce the total power consumption of annual booster fan about 2/3, increase and the feasibility that the fume afterheat degree of depth reclaims transformation is carried out to existing gas fired-boiler.
Accompanying drawing explanation
Fig. 1 is that example 1 of the present invention master looks section simplified schematic diagram.
Fig. 2 is that example 2 of the present invention master looks section simplified schematic diagram.
Fig. 3 is A-A view in embodiment 2.
Fig. 4 is the filler top view of example 3 of the present invention.
In figure: 1. chimney, 2. connecting leg, 3. shell body, 4. water distribution system, 5. nozzle, 6. dividing wall type heat exchanger, 7-1,7-2,7-3,7-4. stainless steel helices, 8. enters mouth, 9. online pH value monitor controller, 10. overfall, 11. demisters, 12. collecting-tanks, 13. circulating pumps, 14. I-steel, 15. keel, 16. hinges, 17. suspension ring.
Detailed description of the invention
Embodiment 1:
In a kind of gas fired-boiler chimney shown in Fig. 1 and the two-in-one device of fountain flue gas waste heat recovery assembly, inside establish columnar chimney 1 lower end of rotary folding streaming demister 11 to be connected with the small-bore upper end of truncated cone shape connecting leg 2, connecting leg heavy caliber lower end is connected with waste heat recovery package shell body 3 upper end open.This shell body vertically arranged is tubular, and bottom is established into mouth 8, and shell body lower end is connected with collecting-tank 12 upper end open, and the shell body be connected with collecting-tank upper shed is provided with overfall 10.Discharge outlet established by above-mentioned collecting-tank, it is connected with dividing wall type heat exchanger 6 thermal medium entrance by circulating pump 13 and conduit, water at low temperature after the cooling that dividing wall type heat exchanger thermal medium outlet is discharged enters water distribution system 4, and this water distribution system is connected with the nozzle 5 being located at shell body internal upper part.A through hole also established by collecting-tank, it is connected with online pH value monitoring device 9 by conduit, be provided with 4 layers of stainless steel helices layer 7-1,7-2,7-3,7-4 in housing below nozzle, whole filler block supports is on I-steel 14, and I-steel 14 welds with device housings body 3.
Embodiment 2:
In a kind of gas fired-boiler chimney shown in Fig. 2 and the two-in-one device of fountain flue gas waste heat recovery assembly, inside establish columnar chimney 1 lower end of rotary folding streaming demister 11 to be connected with the small-bore upper end of truncated cone shape connecting leg 2, connecting leg heavy caliber lower end is connected with waste heat recovery package shell body 3 upper end open.This shell body vertically arranged is tubular, and bottom is established into mouth 8, and shell body lower end is connected with collecting-tank 12 upper end open, and the shell body be connected with collecting-tank upper shed is provided with overfall 10.Discharge outlet established by above-mentioned collecting-tank, it is connected with dividing wall type heat exchanger 6 thermal medium entrance by circulating pump 13 and conduit, water at low temperature after the cooling that dividing wall type heat exchanger thermal medium outlet is discharged enters water distribution system 4, and this water distribution system is connected with the nozzle 5 being located at shell body internal upper part.A through hole also established by collecting-tank, and it is connected with online pH value monitoring device 9 by conduit, is provided with 4 layers of stainless steel helices layer 7-1,7-2,7-3,7-4. in the housing below nozzle.Filler is resistant to elevated temperaturesly revolve louvered stainless steel helices, wherein blinds entirety is rectangle, serrated metal keel 15 are relied on to support, around circular filler is fixing filler, whole filler block supports is on I-steel 14, and I-steel 14 welds with device housings body 3, and I-steel 14 is provided with keel sliding rail, the keel 15 be located on this sliding rail are connected with motor by Offset slider-crank mechanism, and louvered stainless steel helices is connected with zigzag keel 15.。
Embodiment 3:
Its general structure is substantially same as Example 2, just filler part is different, as shown in Figure 4, filler of the present invention is resistant to elevated temperatures lift-on/lift-off type stainless steel helices, it has two pieces of rectangular slabs split, and split two limits are adjacent, and suspension ring 17 are respectively established at the position adjacent with splitting limit, these suspension ring are connected with chain one end, and the chain other end stretches out shell body and is connected with hoist engine.Another two limits that two rectangular slabs are relative with two limits of splitting are provided with the hinge 16 it be connected with fixing filler.
The present invention does not limit to above-mentioned preferred forms, and all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (3)
1. a gas fired-boiler chimney and the two-in-one device of fountain flue gas waste heat recovery assembly, it is characterized in that: chimney lower end is connected with the small-bore upper end of truncated cone shape connecting leg, connecting leg heavy caliber lower end is connected with waste heat recovery package shell body upper end open, this shell body vertically arranged, bottom is established into mouth, shell body lower end is connected with collecting-tank upper end open, the shell body be connected with collecting-tank upper shed is provided with overfall, discharge outlet established by above-mentioned collecting-tank, it is connected with dividing wall type heat exchanger thermal medium entrance by circulating pump and conduit, water at low temperature after the cooling that dividing wall type heat exchanger thermal medium outlet is discharged enters water distribution system, this water distribution system is connected with the nozzle being located at shell body internal upper part, packing layer is provided with in housing below nozzle.
2. gas fired-boiler chimney according to claim 1 and the two-in-one device of fountain flue gas waste heat recovery assembly, it is characterized in that: a through hole also established by collecting-tank, it is connected with online pH value monitoring device by conduit.
3. gas fired-boiler chimney according to claim 2 and the two-in-one device of fountain flue gas waste heat recovery assembly, it is characterized in that: filler is resistant to elevated temperaturesly revolve louvered stainless steel helices, wherein blinds entirety is rectangle, rely on serrated metal spine support, around circular filler is fixing filler, whole filler block supports is on I-steel, I-steel welds with apparatus casing, I-steel is provided with keel sliding rail, the keel be located on this sliding rail are connected with motor by Offset slider-crank mechanism, louvered stainless steel helices is connected with zigzag keel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042413.0A CN104676619B (en) | 2015-01-28 | 2015-01-28 | The device that a kind of gas fired-boiler chimney is two-in-one with fountain flue gas waste heat recovery assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510042413.0A CN104676619B (en) | 2015-01-28 | 2015-01-28 | The device that a kind of gas fired-boiler chimney is two-in-one with fountain flue gas waste heat recovery assembly |
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| Publication Number | Publication Date |
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| CN104676619A true CN104676619A (en) | 2015-06-03 |
| CN104676619B CN104676619B (en) | 2017-01-04 |
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| CN201510042413.0A Expired - Fee Related CN104676619B (en) | 2015-01-28 | 2015-01-28 | The device that a kind of gas fired-boiler chimney is two-in-one with fountain flue gas waste heat recovery assembly |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157051A (en) * | 2015-08-24 | 2015-12-16 | 上海华向节能环保科技有限公司 | Fluoroplastic waste heat recycling and ultra-low emission integrated device |
| CN106123614A (en) * | 2016-07-21 | 2016-11-16 | 太仓贝斯特机械设备有限公司 | A kind of environment-friendly type waste heat reclaiming flue for mould heating furnace |
| CN107421352A (en) * | 2017-09-08 | 2017-12-01 | 清华大学 | Twin-stage superposition type high-humidity gas fume condensation spray heat-exchange method and device |
| CN107462085A (en) * | 2017-09-22 | 2017-12-12 | 北京华誉能源技术股份有限公司 | A kind of flue gas waste heat recovery system and method |
| CN111425875A (en) * | 2020-02-27 | 2020-07-17 | 浙江大学 | Dividing wall type flue gas waste heat deep recycling system with condensed water spraying function |
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| CN103721538A (en) * | 2013-12-30 | 2014-04-16 | 清华大学 | Integrated treatment and utilizing device for recovering and denitrating smoke waste heat and condensate water of natural gas |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157051A (en) * | 2015-08-24 | 2015-12-16 | 上海华向节能环保科技有限公司 | Fluoroplastic waste heat recycling and ultra-low emission integrated device |
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| CN106123614A (en) * | 2016-07-21 | 2016-11-16 | 太仓贝斯特机械设备有限公司 | A kind of environment-friendly type waste heat reclaiming flue for mould heating furnace |
| CN107421352A (en) * | 2017-09-08 | 2017-12-01 | 清华大学 | Twin-stage superposition type high-humidity gas fume condensation spray heat-exchange method and device |
| CN107462085A (en) * | 2017-09-22 | 2017-12-12 | 北京华誉能源技术股份有限公司 | A kind of flue gas waste heat recovery system and method |
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| CN111425875A (en) * | 2020-02-27 | 2020-07-17 | 浙江大学 | Dividing wall type flue gas waste heat deep recycling system with condensed water spraying function |
| CN111425875B (en) * | 2020-02-27 | 2022-02-11 | 浙江大学 | Dividing wall type flue gas waste heat deep recycling system with condensed water spraying function |
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| CN104676619B (en) | 2017-01-04 |
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