CN202419916U - Internal circulation waste heat recycling device for heat conduction oil furnace - Google Patents
Internal circulation waste heat recycling device for heat conduction oil furnace Download PDFInfo
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- CN202419916U CN202419916U CN2012200023724U CN201220002372U CN202419916U CN 202419916 U CN202419916 U CN 202419916U CN 2012200023724 U CN2012200023724 U CN 2012200023724U CN 201220002372 U CN201220002372 U CN 201220002372U CN 202419916 U CN202419916 U CN 202419916U
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to an internal circulation waste heat recycling device for a heat conduction oil furnace. The recycling device comprises an economizer arranged inside a flue, thermosistors arranged outside the flue and a connection pipeline, wherein an internal circulation pipeline is led out between an outlet of a hot oil pump and the heat conduction oil inlet end of the heat conduction oil furnace or is led out of the heat conduction oil outlet end of the heat conduction oil furnace, sequentially penetrates through the thermosistors, the economizer and an internal circulation oil return pipeline and returns to an oil-gas separator or a hot oil pump inlet pipeline to form an internal circulation loop. By the internal circulation waste heat recycling device, the heat conduction oil furnace can run economically at high heat efficiency, so that the problem that the waste heat of the heat conduction oil furnace is difficult to recover is solved, and the aims of saving energy, reducing consumption and simplifying a process are fulfilled.
Description
Technical field
The utility model relates to a kind of heat-conducting oil furnace internal circulation residual heat retracting device, belongs to residual heat from boiler fume and reclaims the field.
Background technology
Heat-conducting oil furnace be a kind of be that conduction oil is the special boiler of working media with organic heat carrier; The high-temperature flue gas heating conduction oil that produces through fuel combustion, for hot equipment required heat to be provided, and the flue gas that produces after the fuel combustion is when chimney is discharged after the conduction oil rising temperature; Temperature is generally about 170 ℃; That have even up to 300 ℃, both wasted heat, again environment has been caused thermal pollution.
Heat-conducting oil furnace does not carry out waste heat recovery mostly or only increases air preheater recovery section fume afterheat.The part flow setting waste-heat recovery device of carrying vapour generator such as heat pipe boiler etc., a kind of heat-conducting oil furnace using waste heat from tail gas retracting device structural representation (like Fig. 1) of carrying vapour generator is provided: comprising: body of heater 1, flue 2 like ZL200420027889.4; Steam generator 3, steam generator shell 31, steam generator drum 32; Steam generator heat-transfer pipe 33, steam generator tube sheet 34, air preheater 4; The air inlet pipe 41 of air preheater, air-introduced machine 5, chimney 6.This technology can make the heat-conducting oil furnace exhaust gas temperature be reduced to about 160 ℃, and reclaims a certain amount of steam.
The device flow process that ZL200710046604.X provides a kind of residual heat from boiler fume to reclaim, this technology main application fields is a station boiler.This technology example structure sketch map is as shown in Figure 2: comprise self-con-tained unit 1, internally piloted valve 2, drum 3, upper hose 4; Down-comer 5, mesolow evaporimeter 6, economizer 7, feed pump 8; Air preheater 9, flue 10, phase-change heat-exchanger hypomere 11, wall temperature tester 12; Phase-change heat-exchanger epimere 13, air channel 14, drum safety valve 15, drum liquid level gauge 16.This technology is compared with ZL200420027889.4, and exhaust gas temperature can be reduced to about 130 ℃, improves boiler thermal output 1%～2%.
But; If the heat-conducting oil furnace applying unit need not the steam that the waste heat recovery flow process produces, such technological use promptly receives very big restriction, then only can increase air preheater recovery section fume afterheat; For avoiding the cold end corrosion of air preheater; The exhaust gas temperature of boiler is common more than 160 ℃, and the overall thermal efficient of boiler is still lower, does not meet energy-conservation and environmental requirement.
Therefore how rationally to recycle the fume afterheat of heat-conducting oil furnace and simplify flow process, reduce exhaust gas temperature, avoid cold end corrosion, improve the focus that the thermal efficiency becomes this area research.
Summary of the invention
The purpose of the utility model provides a kind of internal circulation residual heat retracting device for solving the shortcoming that above-mentioned prior art exists, and to realize the high efficiente callback of heat-conducting oil furnace fume afterheat, reaches energy saving purposes.
The purpose of the utility model realizes through following measure:
A kind of heat-conducting oil furnace internal circulation residual heat retracting device; This heat-conducting oil furnace comprises body of heater 1, flue 9 and temperature end conduction oil closed circuit; Be provided with hot oil pump 7 and gs-oil separator 5 in the temperature end conduction oil closed circuit; It is characterized in that: this retracting device comprises economizer 13, the outer thermosistor 10 of flue that is arranged in the flue 9, and connecting line; Wherein, Inner circulating tube line 12 is by drawing between hot oil pump 7 outlets and the heat-conducting oil furnace 1 heat conductive oil inlet end; Or draw by the heat-conducting oil furnace 1 conduction oil port of export; Successively through thermosistor 10, economizer 13, in loop back oil pipeline 14, be back to gs-oil separator 5 or hot oil pump 7 inlet line, closed circuit in forming.
This retracting device also is provided with temperature adjustment by-pass 11, before 11 imports of temperature adjustment by-pass are connected on the import of thermosistor 10, after 11 outlets of temperature adjustment by-pass are connected on the outlet of thermosistor 10.
Wherein heat-conducting oil furnace 1 comprises heating source 2, and heating source 2 adopts coal, oil or gas to act as a fuel.
Said temperature end conduction oil closed circuit comprises hot oil pump 7, with hot equipment 3, gs-oil separator 5, filter 6 and connecting line; The hot oil pump 7 that conduction oil connects through pipeline successively, body of heater 1, with hot equipment 3, gs-oil separator 5, filter 6; Flow back to hot oil pump 7, form closed cycle.Conduction oil gets into hot oil pump 7 after with hot equipment 3, gs-oil separator 5, filter 6 again and is connected to form closed cycle through pipe-line system after hot oil pump 7 pressurization back gets into heat-conducting oil furnace 1 and absorbs the heat of fuel combustion generation.
Said thermosistor 10 adopts the indirect heat exchange mode with conduction oil, and entrance point is connected with conduction oil inner circulating tube line 12 and hotline heater 13 heat conductive oil inlets respectively with the port of export.
Closed circuit is following in the conduction oil of the utility model: the high temperature heat conductive oil after the heating of heat-conducting oil furnace 1 outlet; Get into thermosistor 10 through conduction oil inner circulating tube line 12; Conduction oil inner circulating tube line 12 outlets are between hot oil pump 7 outlet and feed line with hot equipment 3, after the reduction conduction oil temperature, after conduction oil that temperature adjustment by-pass 11 is come mixes; Send into economizer 13; Through the conduction oil of economizer 13 heating, get back to gs-oil separator 5 or hot oil pump 7 inlet line through looping back oil pipeline 14 in the conduction oil, after the outer circulation conduction oil mixes; After hot oil pump 7 is sent into heat-conducting oil furnace 1 heating through the pipe-line system connection, again high temperature heat conductive oil is seen off, thereby formed closed circuit in the conduction oil.
The described said economizer 13 of the utility model has a heat exchanger tube at least; Said economizer 13 adopts the indirect heat exchange mode with flue gas, the heat conductive oil inlet end of economizer 13 export with thermosistor 10 conduction oils respectively with the port of export and conduction oil in loop back oil pipeline 14 and be connected.
The heat exchanger tube of the described economizer 13 of the utility model can adopt tubulation, finned tube, coiled pipe or spiral grooved tube.
The described economizer 13 of the utility model can be provided with by-pass line as required.
Thermosistor 10 in the utility model adopts the indirect heat exchange mode, can be the heat exchanger of shell-and-tube heat exchanger, plate type heat exchanger or other patterns.
Thermosistor 10 in the utility model can be provided with one or more as required, adopts connection in series-parallel or series-parallel connection mode to connect.
Thermosistor 10 in the utility model is heated into hot fluid 16 with cold fluid 15, supplies subsequent technique to use.Described cold fluid can be air or other suitable media.Adopt air such as cold fluid 15, the thermosistor 10 of this moment is equivalent to be arranged on the outer air preheater of flue, and the hot fluid 16 after the heating is sent into heat-conducting oil furnace 1 and used as combustion air, and this moment, hot fluid 16 was air 17.
Be provided with conventional flue gas discharge temperature regulation device; Regulation device is according to the height of the wall temperature (or flue outlet place cigarette temperature) of economizer 13 low-temperature end, and the means such as aperture through the control bypass valve can make the exhaust gas temperature of flue outlet be reduced to the flue gas acid dew point temperature that only is higher than economizer 13 walls; Avoiding under the prerequisite of dewfall; Reach the purpose of utilizing fume waste heat to greatest extent, make heat-conducting oil furnace ability economy, high thermal efficiency operation, reach energy saving purposes.
The utility model is compared prior art and is had following advantage:
1, this device has designed a cover conduction oil internal circulation system in original heat-conducting oil furnace system; Utilize the thermal source of the high-temperature flue gas waste heat of heat-conducting oil furnace as economizer 13; The higher conduction oil of temperature that produces is got back to heat-conducting oil furnace 1 and is continued heating; Be equivalent to a kind of backheat circulation in fact, can reclaim the waste heat of flue gas efficiently.
2, in addition, adopt external thermosistor as being air preheater, flexible arrangement is convenient, has avoided the cold end corrosion of air preheater.
3, the retracting device of the utility model is reasonable in design, and the waste heat recovery rate is high, can use with existing residual heat of heat-conducting oil furnace recovery technology combination.
4, the retracting device of the utility model, behind the recovery waste heat, smog discharge temperature meets energy-conservation and environmental requirement about 130 ℃.
Description of drawings
Fig. 1 is the heat-conducting oil furnace using waste heat from tail gas retracting device structural representation of the carrying vapour generator of prior art;
Fig. 1: 1-body of heater, 2-flue, 3-steam generator, 31-steam generator shell, 32-steam generator drum, 33-steam generator heat-transfer pipe, 34-steam generator tube sheet, 4-air preheater, the air inlet pipe of 41-air preheater, 5-air-introduced machine, 6-chimney.
Fig. 2 is the device flow chart that the residual heat from boiler fume of prior art reclaims;
Among Fig. 2: 1-self-con-tained unit, 2-internally piloted valve, 3-drum, 4-upper hose; The 5-down-comer, 6-mesolow evaporimeter, 7-economizer, 8-feed pump; The 9-air preheater, 10-flue, 11-phase-change heat-exchanger hypomere, 12-wall temperature tester; 13-phase-change heat-exchanger epimere, 14-air channel, 15-drum safety valve, 16-drum liquid level gauge.
Fig. 3 is a kind of heat-conducting oil furnace internal circulation residual heat high efficiente callback apparatus structure schematic flow sheet of the utility model.
Among Fig. 3,1-heat-conducting oil furnace, 2-heating source, 3-are used hot equipment, 4-high-order expansion slot; 5-gs-oil separator, 6-filter, 7-hot oil pump, 8-low level oil storage tank, 9-flue; 10-thermosistor, 11-temperature adjustment by-pass, 12-inner circulating tube line, 13-economizer; Loop back oil pipeline in the 14-, 15-cold fluid, 16-hot fluid, 17-air.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.
Embodiment 1:
As shown in Figure 3, the schematic flow sheet of the heat-conducting oil furnace internal circulation residual heat retracting device of the utility model.This heat-conducting oil furnace comprises body of heater 1, flue 9 and temperature end conduction oil closed circuit.Wherein heat-conducting oil furnace 1 is provided with heating source 2, and heating source 2 adopts coal, oil or gas to act as a fuel.Temperature end conduction oil closed circuit comprise hot oil pump 7, with heat be provided with 3, gs-oil separator 5, filter 6, high-order expansion slot 4, low level oil storage tank 8 and supporting pipeline, valve and control instrument etc.The hot oil pump 7 that conduction oil connects through pipeline successively, body of heater 1, with hot equipment 3, gs-oil separator 5, filter 6, flow back to hot oil pump 7, the formation closed cycle.
The heat-conducting oil furnace internal circulation residual heat retracting device of the utility model: comprise the economizer 13, the outer thermosistor 10 of flue that are arranged in the flue 9, and connecting line; Wherein, inner circulating tube line 12 is drawn by the heat-conducting oil furnace 1 conduction oil port of export, successively through thermosistor 10, economizer 13, in loop back oil pipeline 14, be back to gs-oil separator 5 or hot oil pump 7 inlet line, form closed circuit in the conduction oil.
Closed circuit is following in this conduction oil: the high temperature heat conductive oil after the heating of heat-conducting oil furnace 1 outlet; Get into thermosistors 10 through conduction oil inner circulating tube line 12, reduce the conduction oil temperature after, after conduction oil that temperature adjustment by-pass 11 is come mixes; Send into economizer 13; Through the conduction oil of economizer 13 heating, get back to gs-oil separator 5 or hot oil pump 7 inlet line through looping back oil pipeline 14 in the conduction oil, after the outer circulation conduction oil mixes; After hot oil pump 7 is sent into heat-conducting oil furnace 1 heating through the pipe-line system connection, again high temperature heat conductive oil is seen off, thereby formed closed circuit in the conduction oil.
The heat exchanger tube of said economizer 13 adopts tubulation, finned tube, coiled pipe or spiral grooved tube.
Temperature adjustment by-pass 11 is set, regulates flow, after mixing, get into economizer 13 after the raising temperature, avoid economizer 13 issuable flue gas low-temperatures corrosion through the cooled conduction oil of thermosistor through it.
Be provided with conventional flue gas discharge temperature regulation device; Regulation device is according to the height of the wall temperature (or flue outlet place cigarette temperature) of economizer 13 low-temperature end, and the means such as aperture through the control bypass valve can make the exhaust gas temperature of flue outlet be reduced to the flue gas acid dew point temperature that only is higher than economizer 13 walls; Avoiding under the prerequisite of dewfall; Reach the purpose of utilizing fume waste heat to greatest extent, make heat-conducting oil furnace ability economy, high thermal efficiency operation, reach energy saving purposes.
Embodiment 2:
The another kind of embodiment of the utility model is: conduction oil inner circulating tube line 12 outlets are between hot oil pump 7 outlets and heat-conducting oil furnace 1 feed line, and all the other performances are with embodiment 1.
Though the utility model with preferred embodiment openly as above; But they are not to be used for limiting the utility model, anyly are familiar with this art, in spirit that does not break away from the utility model and scope; From when doing various variations or retouching, belong to the protection domain of the utility model equally.For example, the utility model can adopt the phase-change heat-exchanger of other patterns, can realize the high efficiente callback of fume afterheat equally.Therefore the protection domain of the utility model should with the application claim was defined is as the criterion.
Claims (9)
1. heat-conducting oil furnace internal circulation residual heat retracting device; This heat-conducting oil furnace comprises body of heater (1), flue (9) and temperature end conduction oil closed circuit; Be provided with hot oil pump (7) and gs-oil separator (5) in the temperature end conduction oil closed circuit; It is characterized in that: this retracting device comprises economizer (13), the outer thermosistor (10) of flue that is arranged in the flue (9), and connecting line; Wherein, Inner circulating tube line (12) is by drawing between hot oil pump (7) outlet and heat-conducting oil furnace (1) the heat conductive oil inlet end; Or draw by heat-conducting oil furnace (1) the conduction oil port of export; Successively through thermosistor (10), economizer (13), in loop back oil pipeline (14), be back to gs-oil separator (5) or hot oil pump (7) inlet line, closed circuit in forming.
2. heat-conducting oil furnace internal circulation residual heat retracting device according to claim 1; It is characterized in that: this retracting device also is provided with temperature adjustment by-pass (11); Before temperature adjustment by-pass (11) import is connected on the import of thermosistor (10), after temperature adjustment by-pass (11) outlet is connected on the outlet of thermosistor (10).
3. heat-conducting oil furnace internal circulation residual heat retracting device according to claim 1 is characterized in that: wherein heat-conducting oil furnace (1) comprises heating source (2), and heating source (2) adopts coal, oil or gas to act as a fuel.
4. heat-conducting oil furnace internal circulation residual heat retracting device according to claim 1; It is characterized in that: said temperature end conduction oil closed circuit comprises hot oil pump (7), with hot equipment (3), gs-oil separator (5), filter (6) and connecting line; The hot oil pump (7) that conduction oil connects through pipeline successively, body of heater (1), with hot equipment (3), gs-oil separator (5), filter (6); Flow back to hot oil pump (7), form closed cycle.
5. according to claim 1,2,3 or 4 described heat-conducting oil furnace internal circulation residual heat retracting devices; It is characterized in that: said thermosistor (10) adopts the indirect heat exchange mode with conduction oil, and entrance point is connected with conduction oil inner circulating tube line (12) and hotline heater (13) heat conductive oil inlet respectively with the port of export.
6. heat-conducting oil furnace internal circulation residual heat retracting device according to claim 5 is characterized in that: said thermosistor (10) is shell-and-tube heat exchanger, plate type heat exchanger or other forms of heat exchanger.
7. heat-conducting oil furnace internal circulation residual heat retracting device according to claim 6 is characterized in that: the cold fluid (15) of the working media of thermosistor (10) becomes hot fluid (16) through thermosistor (10), and hot fluid (16) supplies subsequent technique to use.
8. root is according to claim 1,2,3 or 4 described heat-conducting oil furnace internal circulation residual heat retracting devices, and it is characterized in that: this device also is provided with flue gas discharge temperature regulation device.
9. according to claim 1,2,3 or 4 described heat-conducting oil furnace internal circulation residual heat retracting devices, it is characterized in that: the heat exchanger tube of said economizer (13) adopts tubulation, finned tube, coiled pipe or spiral grooved tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200023724U CN202419916U (en) | 2012-01-05 | 2012-01-05 | Internal circulation waste heat recycling device for heat conduction oil furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200023724U CN202419916U (en) | 2012-01-05 | 2012-01-05 | Internal circulation waste heat recycling device for heat conduction oil furnace |
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| CN202419916U true CN202419916U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200023724U Expired - Lifetime CN202419916U (en) | 2012-01-05 | 2012-01-05 | Internal circulation waste heat recycling device for heat conduction oil furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108361986A (en) * | 2018-05-04 | 2018-08-03 | 大连斯迈尔机电装备有限公司 | A kind of conduction oil heat-exchange system |
-
2012
- 2012-01-05 CN CN2012200023724U patent/CN202419916U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108361986A (en) * | 2018-05-04 | 2018-08-03 | 大连斯迈尔机电装备有限公司 | A kind of conduction oil heat-exchange system |
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Granted publication date: 20120905 |
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| CX01 | Expiry of patent term |