CN204421657U - A kind of flue gas waste heat recovery apparatus - Google Patents
A kind of flue gas waste heat recovery apparatus Download PDFInfo
- Publication number
- CN204421657U CN204421657U CN201520006008.9U CN201520006008U CN204421657U CN 204421657 U CN204421657 U CN 204421657U CN 201520006008 U CN201520006008 U CN 201520006008U CN 204421657 U CN204421657 U CN 204421657U
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- CN
- China
- Prior art keywords
- air
- exchanger tube
- flue gas
- heat exchanger
- heat recovery
- 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.)
- Withdrawn - After Issue
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The utility model provides a kind of flue gas waste heat recovery apparatus, comprises retracting device main body, air-introduced machine; Retracting device main body have air intlet, air outlet slit, gas approach, exhanst gas outlet and heat exchanger tube; Retracting device main body has the first through hole, heat exchanger tube inserts the first through hole, isolation retracting device main body forms independently exhaust gases passes and air duct; Air intlet is communicated with air duct respectively with air outlet slit, and gas approach is communicated with exhaust gases passes respectively with exhanst gas outlet; Heat exchanger tube is the heat exchanger tube that glass material is made, and air-introduced machine is connected with gas approach.Because glass material is corrosion-resistant, adopt glass material to make heat exchanger tube and flue-gas temperature can be reduced to below dew-point temperature, and the corrosion of various acid exchange heat pipe in condensed water need not be worried, improve waste heat recovery efficiency; Air-introduced machine is that metal material is made, and air-introduced machine is arranged on retracting device body front end, and various acid can be prevented the corrosion of air-introduced machine bulk material.
Description
Technical field
The utility model relates to heating furnace heat recovery technology field, particularly a kind of flue gas waste heat recovery apparatus.
Background technology
Flue gas is the main path of general energy consumption equipment waste energy, in order to make full use of flue gas heat, improving efficiency of energy utilization, all can be furnished with flue gas waste heat recovery apparatus, utilize fume afterheat to add air after oil, power industry heating furnace.Owing to containing a large amount of steam in the flue gas that burning is formed, the reduction steam along with temperature reaches dew point and condenses into steam.In general combustion product gases, (particularly coal fuel) all can have the sulfur trioxide that certain sulfur dioxide and a small amount of complete oxidation are formed, the sulfurous acid of sulfur dioxide and sulfur trioxide and water combination formation and sulfuric acid.Because present waste-heat recovery device all adopts metal material to make, sulfurous acid and sulfuric acid meeting corroding metal material, cause equipment to damage.In order to ensure device security, prevent flue gas from revealing, existing waste-heat recovery device can only sacrifice waste heat recovery efficiency, improve exhaust gas temperature.
Utility model content
For solving waste-heat recovery device that existing metal material makes for preventing equipment corrosion, can not improve the problem of waste heat recovery efficiency further, the utility model provides a kind of new flue gas waste heat recovery apparatus.
The utility model provides a kind of flue gas waste heat recovery apparatus, comprises retracting device main body, air-introduced machine; Described retracting device main body have air intlet, air outlet slit, gas approach, exhanst gas outlet and heat exchanger tube; Described retracting device main body has the first through hole, described heat exchanger tube inserts described first through hole, isolate described retracting device main body and form independently exhaust gases passes and air duct; Described air intlet is communicated with described air duct respectively with described air outlet slit, and described gas approach is communicated with described exhaust gases passes respectively with described exhanst gas outlet; Described heat exchanger tube is the heat exchanger tube that glass material is made, and described air-introduced machine is connected with described gas approach.
Because glass material has corrosion resistance characteristic, adopt glass material to make heat exchanger tube and flue-gas temperature can be reduced to below dew-point temperature, and need not worry that the various oxides in condensed water and flue gas react the corrosion that heat pipe is exchanged in the various acid produced, improve waste heat recovery efficiency; Air-introduced machine is that metal material is made, and air-introduced machine is arranged on retracting device body front end, and various acid can be prevented the corrosion of air-introduced machine bulk material.
Preferably, there is in described heat exchanger tube the enhanced heat exchange body along described heat exchanger tube axial distribution; Described enhanced heat exchange body is waveform or spirality.
Preferably, described enhanced heat exchange body has the second through hole.
In heat exchanger tube, arrange enhanced heat exchange body, enhanced heat exchange body can flow-disturbing air, improves air stroke and heat conduction efficiency.
Preferably, the diameter of described heat exchanger tube is 12.0-80.0mm, wall thickness is 0.8mm-12mm.
Preferably, described air intlet place and described air outlet slit place have sealing plate, and described first through hole is arranged on described sealing plate.
Preferably, described first through hole and described heat exchanger tube are by sealing gasket or sealant sealing.
Preferably, automatic condensate drain liquid parts are also comprised; Described automatic condensate drain liquid parts have inner core, urceolus and lime set outlet; Described inner core is connected with described exhanst gas outlet; Described inner core inserts in described urceolus, the discharge outlet of described inner core and the inner space of described urceolus; Described lime set outlet is positioned on the outer wall of described urceolus, with the inner space of described urceolus; The discharge outlet height of described inner core is lower than described lime set outlet height.
Arrange automatic condensate drain liquid parts, the condensed water produced in retracting device body can flow into automatic condensate drain liquid parts and be discharged by lime set outlet, prevents condensed water from accumulating the operational failure causing whole waste-heat recovery device; The inner core of automatic condensate drain liquid parts and urceolus form fluid-tight, can prevent outside air from entering exhaust gases passes.
Preferably, described automatic condensate drain liquid parts have water supplement port; Described water supplement port is positioned on the outer wall of described urceolus, with the inner space of described urceolus, the height of described water supplement port is higher than described lime set discharge outlet height.
When the accumulation water in urceolus is not enough to form fluid-tight, by water supplement port water filling, facilitate the control of automatic condensate drain liquid parts.
Preferably, described automatic condensate drain liquid parts also have blowoff valve; Described blowoff valve is positioned at the bottom of described condensate drain liquid parts.
Preferably, described automatic condensate drain liquid parts are the condensate drain liquid parts of glass steel material.
Accompanying drawing explanation
Fig. 1 is utility model embodiment flue gas waste heat recovery apparatus application schematic diagram;
Fig. 2 is the retracting device main body front view of the utility model embodiment flue gas waste heat recovery apparatus;
Fig. 3 is the retracting device main body side view of the utility model embodiment flue gas waste heat recovery apparatus;
Fig. 4 be heat exchanger tube in retracting device main body the first schematic diagram is set;
Fig. 5 is that the heat exchanger tube the second in retracting device main body arranges schematic diagram;
Fig. 6 be heat exchanger tube in retracting device main body the third schematic diagram is set;
Fig. 7 is the condensate drain liquid block diagram of the utility model embodiment flue gas waste heat recovery apparatus.
Detailed description of the invention
For making those skilled in the art better understand the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is utility model embodiment flue gas waste heat recovery apparatus application schematic diagram, and the flue gas waste heat recovery apparatus of the utility model embodiment comprises air-introduced machine 1, air blast 2, retracting device main body 3A, automatically condensate drain liquid parts 3B and corresponding connecting line as can be seen from Figure 1.Wherein retracting device main body 3A achieves the exchange of heat; Automatic condensate drain liquid parts 3B can receive the condensed water formed in retracting device main body 3A, and automatically condensed water is entered follow-up sewage disposal device; Air-introduced machine plays the effect of guiding high-temperature flue gas to retracting device main body 3A; Air blast plays the effect of direct air to retracting device main body 3A.
Retracting device main body in the present embodiment is rectangle shell structure, has air intlet 34, air outlet slit 33, gas approach 31, exhanst gas outlet 32 and heat exchanger tube 30 (heat exchanger tube 30 embodies in Fig. 2-Fig. 6).Air intlet 34 is connected with air blast 2, air blast 2 by Cryogenic air pressurized transfer to retracting device main body 3A; Air outlet slit 33 by heating transfer of air to subsequent operation operation.Gas approach 31 in the present embodiment is connected with air-introduced machine 1, and the flue gas in boiler or preorder thermal recovery unit is introduced retracting device main body 3A by air-introduced machine 1.Exhanst gas outlet 32 is connected with automatic condensate drain liquid parts 3B and chimney 4; Change thermogenetic condensed water by retracting device main body 3A and drain into automatic condensate drain liquid parts 3B by exhanst gas outlet 32, low-temperature flue gas is discharged by chimney 4 or is carried out subsequent treatment.
Retracting device body in the utility model embodiment has the first through hole; Heat exchanger tube 30 is arranged on the first through hole, by retracting device main body 3A and divides in order to separate exhaust gases passes and air duct.Exhaust gases passes is communicated with gas approach 31, exhanst gas outlet 32, and air duct is communicated with air intlet 34, air outlet slit 33.Because flue-gas temperature is greater than air themperature, heat conducts to air by the tube wall of heat exchanger tube 30 from flue gas.In the present embodiment, flow of flue gas direction is vertical with air-flow direction; In other embodiments, also can change the layout relationship of exhaust gases passes, air duct, change the relation of flow of flue gas direction and air-flow direction.
The heat exchanger tube that heat exchanger tube 30 in the utility model embodiment is made for glass material, glass material has good anticorrosion properties, the condensed water formed after flue gas cool-down be combined with the acidic oxide such as sulfur dioxide in flue gas, sulfur trioxide formed middle strong acid, strong acid can not etching glass material, therefore flue-gas temperature can be reduced to dew-point temperature even less than 100 DEG C, improve the utilization ratio of heat.It should be noted that, heat exchanger tube 30 in the present embodiment is industrial heat resistant glass, can long-term work more than 300 DEG C, structural stability is good, not easily broken, be convenient to manufacture, transport and installing, can acid-alkali-corrosive-resisting, ensure that exhaust gas temperature can lower than flue gas dew point temperature, thus Mist heat recovering effectively; The glass material of other temperature capability can be adopted in other embodiments according to application demand.
Due to air-introduced machine 1 for metal material is made, corrode air-introduced machine 1 material of main part, relative to layout of the prior art, before air-introduced machine 1 has been arranged on retracting device main body 3A by the utility model embodiment for preventing condensed water.High-temperature flue gas is unsaturated by steam vapour pressure during air-introduced machine, therefore can not condense into water, also would not impact air-introduced machine material.
The utility model embodiment adopts the inner side cavity of heat exchanger tube 30 as air duct, adopts the space of heat exchanger tube 30 and the formation of retracting device body as exhaust gases passes.Certainly, consider that the space that the inner side cavity of heat exchanger tube 30 also can be adopted to be formed as exhaust gases passes, heat exchanger tube 30 and retracting device body is as air duct from application; But have a large amount of cigarette ash in consideration flue gas, Long-Time Service may block the inner side cavity of heat exchanger tube 30, does not advise setting like this.
Heat exchanger tube 30 in the utility model embodiment is arranged on the first through hole, and the first through hole is positioned on the sealing plate of air intlet 34, air outlet slit 33 correspondence, coaxially arranges between corresponding two through holes.For preventing flue gas from revealing from the join domain of the first through hole and heat exchanger tube 30, be also provided with sealing gasket or fluid sealant in this position.The sealing gasket that the polytetrafluoroethylmaterial material that sealing gasket can adopt this area to commonly use is made, fluid sealant can adopt high-temperature seal adhesive.Because heat exchanger tube 30 and sealing plate adopt sealing gasket or fluid sealant to be connected, therefore it is detachable, as single heat exchanger tube 30 goes wrong and can directly change.
The diameter of the heat exchanger tube 30 in the present embodiment can between 18.0mm-60.0mm, and wall thickness between 0.8mm-12.0mm, can arrange length and the quantity of heat exchanger tube 30 accordingly according to the heat exchange efficiency of actual design.
In order to improve the heat exchange efficiency of heat-exchanger rig body further, there is in the heat exchanger tube 30 in the present embodiment the enhanced heat exchange body 301 of axial distribution, enhanced heat exchange body 301 can play stir ventilating air effect, improve air at the stroke of heat exchanger tube 30.As Fig. 6, the enhanced heat exchange body 301 in the present embodiment is spiral enhanced heat exchange body 301, enhanced heat exchange body 301 also has the second through hole 302.Certainly, in other embodiments, enhanced heat exchange body 301 also can not be arranged through hole, shape and also can be the structure that waveform etc. has obstruction air-flow character, respectively as Fig. 4 and Fig. 5.Because enhanced heat exchange body 301 is positioned at air duct, the speed be corroded is lower, and its material can be metal, also can be the material such as glass or pottery.
It should be noted that heat exchanger tube 30 outside in the utility model embodiment have employed light-pipe structure.Smooth surface can prevent the deposition of dust in flue gas, and long-time use ensures heat transfer efficiency.
According to practical application, in the utility model embodiment, gas approach 31 introduces the high-temperature flue gas of 180 DEG C, and after internal heat, flue-gas temperature can be reduced to below dew-point temperature, heat exchange efficiency improves 30%.When temperature drops to below dew-point temperature, the full condensation of the steam in flue gas is formed accumulates water, needs to accumulate water and discharges, and prevents long-term accumulation from causing exhaust gases passes to block.Automatic condensate drain liquid parts 3B in the present embodiment collects the effect of accumulating water.
Automatic condensate drain liquid parts 3B in the utility model is positioned at the lower of whole flue gas waste heat recovery apparatus, ensures that the condensed water in heat-exchanger rig body can be discharged.Fig. 7 is the condensate drain liquid block diagram of the utility model embodiment flue gas recovery device; Can find out that the automatic condensate drain liquid parts 3B in the utility model embodiment has inner core 36, urceolus 37 and lime set outlet 39.Wherein inner core 36 is connected with exhanst gas outlet 32 and inserts in urceolus 37, is directed through the next condensed water of intermediate conduit stream in the inner chamber of urceolus 37.Have the accumulation water of certain depth in urceolus 37 inner chamber in the utility model embodiment, the discharge outlet of inner core 36 is inserted into accumulates in water, therefore can form fluid-tight, prevent air from entering flue gas exhausting pipe line system.
Lime set outlet 39 is positioned on the outer wall of urceolus 37, with the inner space of urceolus 37, and its height is higher than the height of inner core 36 discharge outlet.When urceolus 37 inner chamber accumulation water reaches the height of lime set outlet 39, partial product water is directly discharged from lime set outlet 39.
For preventing the inefficacy of fluid-tight function, the automatic condensate drain liquid parts 3B in the utility model embodiment also has water supplement port 35, and water supplement port 35 is also positioned on the outer wall of urceolus 37, with the inner space of urceolus 37; When the accumulation water height in urceolus 37 inner chamber is lower than inner core 36 discharge outlet height, by water supplement port 35 to inner chamber water filling, flood discharge outlet, again form fluid-tight.Directly discharge from water supplement port 35 for preventing accumulating water, the height of water supplement port 35 is higher than the height of lime set discharge outlet.Certainly, in other embodiments of the utility model, also water supplement port 35 can not be set, only rely on condensed water to form fluid-tight.
Because the dust of flue gas can along with condensation flow be in the inner chamber of urceolus 37, a large amount of mud can be accumulated in Long-Time Service urceolus 37 inner chamber, in the utility model embodiment, the bottom of urceolus 37 also has blowoff valve 38, when mud reaches a certain amount of, directly opens blowoff valve 38 by sludge removal.Should be appreciated that blowoff valve 38 is not the core component realizing automatic condensate drain liquid parts 3B drain function, in other embodiments, also blowoff valve 38 can not be set.
Because accumulating containing a large amount of corrosive liquids such as sulfurous acid, sulfuric acid in water, glass-reinforced plastic material is all adopted to make for preventing the automatic condensate drain liquid parts 3B in corrosion the present embodiment and intermediate conduit.
Flue gas waste heat recovery apparatus in above the utility model embodiment is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment; the explanation of above embodiment just understands core concept of the present utility model for helping; when not departing from the utility model principle; also can carry out some improvement and modification to the utility model, these improve and modify and also fall in protection domain of the present utility model.
Claims (10)
1. a flue gas waste heat recovery apparatus, comprises retracting device main body (3A), air-introduced machine (1); Described retracting device main body (3A) have air intlet (34), air outlet slit (33), gas approach (31), exhanst gas outlet (32) and heat exchanger tube (30); Described retracting device main body (3A) has the first through hole, described heat exchanger tube (30) inserts described first through hole, isolate described retracting device main body (3A) and form independently exhaust gases passes and air duct; Described air intlet (34) is communicated with described air duct respectively with described air outlet slit (33), and described gas approach (31) is communicated with described exhaust gases passes respectively with described exhanst gas outlet (32); It is characterized in that, the heat exchanger tube (30) that described heat exchanger tube (30) is made for glass material, described air-introduced machine (1) is connected with described gas approach (31).
2. flue gas waste heat recovery apparatus according to claim 1, is characterized in that, has the enhanced heat exchange body (301) distributed vertically in described heat exchanger tube (30); Described enhanced heat exchange body (301) is waveform or spirality.
3. flue gas waste heat recovery apparatus according to claim 2, is characterized in that, described enhanced heat exchange body (301) has the second through hole (302).
4. flue gas waste heat recovery apparatus according to claim 1, is characterized in that, the diameter of described heat exchanger tube (30) is 12.0-80.0mm, wall thickness is 0.8mm-12mm.
5. flue gas waste heat recovery apparatus according to claim 1, is characterized in that, described air intlet (34) place and described air outlet slit (33) place have sealing plate, and described first through hole is arranged on described sealing plate.
6. flue gas waste heat recovery apparatus according to claim 5, is characterized in that, described first through hole and described heat exchanger tube (30) are by sealing gasket or sealant sealing.
7. the flue gas waste heat recovery apparatus according to any one of claim 1-6, is characterized in that, also comprises automatic condensate drain liquid parts (3B); Described automatic condensate drain liquid parts (3B) have inner core (36), urceolus (37) and lime set outlet (39); Described inner core (36) is connected with described exhanst gas outlet (32); Described inner core (36) inserts in described urceolus (37), the discharge outlet of described inner core (36) and the inner space of described urceolus (37); Described lime set outlet (39) is positioned on the outer wall of described urceolus (37), with the inner space of described urceolus (37); The discharge outlet height of described inner core (36) lower than described lime set outlet (39) highly.
8. flue gas waste heat recovery apparatus according to claim 7, is characterized in that, described automatic condensate drain liquid parts (3B) have water supplement port (35); Described water supplement port (35) is positioned on the outer wall of described urceolus (37), with the inner space of described urceolus (37), the height of described water supplement port (35) is higher than described lime set discharge outlet height.
9. flue gas waste heat recovery apparatus according to claim 7, is characterized in that, described automatic condensate drain liquid parts (3B) also have blowoff valve (38); Described blowoff valve (38) is positioned at the bottom of described condensate drain liquid parts.
10. flue gas waste heat recovery apparatus according to claim 7, is characterized in that, the condensate drain liquid parts that described automatic condensate drain liquid parts (3B) are glass steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006008.9U CN204421657U (en) | 2015-01-06 | 2015-01-06 | A kind of flue gas waste heat recovery apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006008.9U CN204421657U (en) | 2015-01-06 | 2015-01-06 | A kind of flue gas waste heat recovery apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204421657U true CN204421657U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520006008.9U Withdrawn - After Issue CN204421657U (en) | 2015-01-06 | 2015-01-06 | A kind of flue gas waste heat recovery apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN204421657U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534893A (en) * | 2015-01-06 | 2015-04-22 | 洛阳明远石化技术有限公司 | Smoke waste heat recycling device |
| CN105402761A (en) * | 2015-12-18 | 2016-03-16 | 中国大唐集团科学技术研究院有限公司 | Deep coupling utilization system for turbine steam exhaust waste heat and boiler flue gas waste heat |
| CN105570918A (en) * | 2016-01-19 | 2016-05-11 | 安徽富强竹业有限公司 | Energy-saving boiler |
| CN108800716A (en) * | 2018-08-13 | 2018-11-13 | 长虹美菱股份有限公司 | A kind of warm keeping chamber's structure of novel multi-door refrigerator |
-
2015
- 2015-01-06 CN CN201520006008.9U patent/CN204421657U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534893A (en) * | 2015-01-06 | 2015-04-22 | 洛阳明远石化技术有限公司 | Smoke waste heat recycling device |
| CN105402761A (en) * | 2015-12-18 | 2016-03-16 | 中国大唐集团科学技术研究院有限公司 | Deep coupling utilization system for turbine steam exhaust waste heat and boiler flue gas waste heat |
| CN105570918A (en) * | 2016-01-19 | 2016-05-11 | 安徽富强竹业有限公司 | Energy-saving boiler |
| CN108800716A (en) * | 2018-08-13 | 2018-11-13 | 长虹美菱股份有限公司 | A kind of warm keeping chamber's structure of novel multi-door refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150624 Effective date of abandoning: 20161026 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |