CN104848679B - A kind of temperature-controlled process of drying room waste-heat recovery device - Google Patents
A kind of temperature-controlled process of drying room waste-heat recovery device Download PDFInfo
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- CN104848679B CN104848679B CN201510220577.8A CN201510220577A CN104848679B CN 104848679 B CN104848679 B CN 104848679B CN 201510220577 A CN201510220577 A CN 201510220577A CN 104848679 B CN104848679 B CN 104848679B
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- temperature
- air exhauster
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a kind of drying room waste-heat recovery device and its temperature-controlled process, including casing and heat-exchange device, it is characterized in that, the heat-exchange device is combined with the casing by heat exchange conjunction, cold air is pumped in the heat-exchange device, and the heat for flowing through waste gas in casing is absorbed using heat exchange principle.Present configuration is simple, it is achieved that the recycling of used heat, energy-conserving and environment-protective；Waste gas reduces the temperature of duct wall after waste-heat recovery device, reduces heat radiation of the exhaust emission suction system temperature to air, and synthesis energy saving reaches 20% or so；Present invention achieves carrying out real-time detection and control to discharging waste heat gas and the temperature before and after cold air heating, recovery drying room waste gas residual heat as much as possible meets air temperature requirement again, effectively improves heat recovery efficiency.
Description
Technical field
The present invention relates to heat-energy recovering apparatus, and in particular to a kind of drying room waste-heat recovery device and its temperature-controlled process.
Background technology
At present, in whole drying room baking field, almost all of roasting plant be all using roasting plant outside low
Humidity, low temperature air directly exchange for high humility in equipment, high-temperature moisture the material in equipment is carried out toasting, hydrofuge.This
During although a technology can reach the effect of hydrofuge, hydrofuge, as hydrofuge waste gas stream contains amount of heat, fail into
Row is recycled, and in air of the substantial amounts of heat-energy losses outside equipment, causes a large amount of wastes of the energy, heat energy not to be had very much
The utilization of effect, causes drying room larger in baking running power consumption.
Drying room not only wastes heat energy in a large amount of used heat moistures that baking running is discharged, and works as institute's waste air temperature mistake
Gao Shi, can improve discharge duct wall temperature, increase heat radiation of the gas extraction system to surrounding environment, have greater environmental impacts；Existing
Technology is not accounted for discharging waste heat gas and the temperature before and after cold air heating when waste gas residual heat is reclaimed using heat exchange principle
Degree is monitored, and when because heat exchange is reclaimed, heat is excessive, when discharge EGT is too low, institute's waste air humidity increase is easily produced
Raw bonding and condensation, can equally affect the operation of drying room benefit and waste-heat recovery device.Therefore, how to ensure both as much as possible
Drying room waste gas residual heat is reclaimed, air temperature requirement is met again, is not affected subsequent process flow, this is accomplished by developing one kind can be with
The drying room waste-heat recovery device of control temperature.
Content of the invention
Not enough for prior art, the invention provides a kind of simple structure, waste heat recovery effect are good, and can control
Discharge the drying room waste heat recovery device of waste heat gas temperature and heat absorption cold air heating-up temperature.
The present invention solve the technical scheme that adopts of above-mentioned technical problem for：A kind of drying room waste-heat recovery device, including casing
And heat-exchange device, the heat-exchange device combined with the casing by heat exchange conjunction, pump in the heat-exchange device
Enter cold air, the heat for flowing through waste gas in casing is absorbed using heat exchange principle.
Further, the heat-exchange device is located at heat exchange conjunction top, connects including pressure fan, preheating cavity and outlet
Mouth conjunction, for absorbing the circulation of the air of waste heat.
Further, the casing is located at heat exchange conjunction bottom, and casing side is provided with air exhauster, for used heat
The circulation of gas.
Further, the pressure fan and air exhauster are VFC.
Further, in the casing, thermometric is respectively arranged with air exhauster mouth, pressure fan mouth, gas outlet conjunction
Point, for carrying out real-time detection to discharging waste heat gas and the temperature before and after cold air heating.
A kind of temperature-controlled process of above-mentioned drying room waste-heat recovery device, for controlling air exhauster mouth and outlet simultaneously
Temperature in mouth conjunction；Case body temperature is T1, and air exhauster mouth temperature is T2, and pressure fan mouth temperature is t1, and gas outlet is tied
Temperature in component is t2, and air exhauster rotating speed is S, and pressure fan rotating speed is s；It is characterized in that comprising the steps：
（1）When air exhauster mouth temperature T2 is less than design temperature T, air exhauster rotating speed S first remains unchanged, and gradually reduces
Pressure fan rotating speed s, until air exhauster mouth temperature T2 is equal to design temperature T；When pressure fan rotating speed s reaches lower limit air exhauster
When mouth temperature T2 is still below design temperature T, then air exhauster rotating speed S is stepped up, until air exhauster mouth temperature T2 is equal to setting
Constant temperature degree T；
（2）When air exhauster mouth temperature T2 is higher than design temperature T, air exhauster rotating speed S first remains unchanged, and is stepped up
Pressure fan rotating speed s, until air exhauster mouth temperature T2 is equal to design temperature T；When pressure fan rotating speed s reaches higher limit air exhauster
When mouth temperature T2 remains above design temperature T, then air exhauster rotating speed S is gradually reduced, until air exhauster mouth temperature T2 is equal to setting
Constant temperature degree T；
（3）When temperature t2 in the conjunction of gas outlet is less than design temperature t, air exhauster rotating speed S first remains unchanged, by
Step reduces pressure fan rotating speed s, until air exhauster mouth temperature t2 is equal to design temperature t；When pressure fan rotating speed s reaches lower limit row
When gas blower fan mouth temperature t2 is still below design temperature t, then air exhauster rotating speed S is stepped up, until air exhauster mouth temperature t2
It is equal to design temperature t；
（4）When temperature t2 in the conjunction of gas outlet is higher than design temperature t, air exhauster rotating speed S first remains unchanged, by
Step increases pressure fan rotating speed s, until air exhauster mouth temperature t2 is equal to design temperature t；When pressure fan rotating speed s reaches higher limit row
When gas blower fan mouth temperature t2 remains above design temperature t, then air exhauster rotating speed S is gradually reduced, until air exhauster mouth temperature t2
It is equal to design temperature t；
（5）According to step（1）-（4）Control method, make temperature t2 in air exhauster mouth T2 and gas outlet conjunction with
When control in setting value.
Advantages of the present invention：The drying room waste heat recovery device of the present invention utilizes circulation heat transfer exchange principle, to useless
Heat is recycled, energy-conserving and environment-protective；Present configuration is case structure, and device is cleaned and maintenance is simple, is placed on above drying room,
Take up room little；Waste gas reduces the temperature of duct wall after waste-heat recovery device, reduces exhaust emission suction system temperature to air
Heat radiation, synthesis energy saving reaches 20% or so；Present invention achieves to discharging waste heat gas and the temperature before and after cold air heating
Real-time detection and control is carried out, recovery drying room waste gas residual heat as much as possible meets air temperature requirement again, effectively improves heat
Organic efficiency.
Description of the drawings
Fig. 1 is schematic structural view of the invention.
Specific embodiment
The present invention is described further below in conjunction with the accompanying drawings.As shown in figure 1, a kind of drying room waste-heat recovery device, bag
Casing 1 and heat-exchange device is included, the heat-exchange device is combined with the casing 1 by heat exchange conjunction 2, the heat exchange
Cold air is pumped in device, absorbs the heat for flowing through waste gas in casing 1 using heat exchange principle.
Further, the heat-exchange device is located at 2 top of heat exchange conjunction, including pressure fan 3, preheating cavity 6 and goes out
Gas interface conjunction 5, for absorbing the circulation of the air of waste heat；The casing 1 is located at 2 bottom of heat exchange conjunction, casing one
Side is provided with air exhauster 4, for the circulation of waste heat gas；The pressure fan 3 and air exhauster 4 are VFC；The case
Point for measuring temperature 7 is respectively arranged with body 1, in 4 mouthfuls of air exhauster, 3 mouthfuls of pressure fan, gas outlet conjunction 5, for discharging waste hot gas
Temperature before and after body and cold air heating carries out real-time detection.
A kind of temperature-controlled process of above-mentioned drying room waste-heat recovery device, for controlling air exhauster mouth and outlet simultaneously
Temperature in mouth conjunction；Case body temperature is T1, and air exhauster mouth temperature is T2, and pressure fan mouth temperature is t1, and gas outlet is tied
Temperature in component is t2, and air exhauster rotating speed is S, and pressure fan rotating speed is s；It is characterized in that comprising the steps：
（1）When air exhauster mouth temperature T2 is less than design temperature T, air exhauster rotating speed S first remains unchanged, and gradually reduces
Pressure fan rotating speed s, reduces the heat that pressure fan is taken away, until air exhauster mouth temperature T2 is equal to design temperature T；When pressure fan turns
When fast s reaches lower limit air exhauster mouth temperature T2 and is still below design temperature T, then be stepped up air exhauster rotating speed S, increase into
Heat in cartonning body, until air exhauster mouth temperature T2 is equal to design temperature T；
（2）When air exhauster mouth temperature T2 is higher than design temperature T, air exhauster rotating speed S first remains unchanged, and is stepped up
Pressure fan rotating speed s, increases the heat that pressure fan is taken away, until air exhauster mouth temperature T2 is equal to design temperature T；When pressure fan turns
When fast s arrival higher limit air exhauster mouth temperature T2 remains above design temperature T, then air exhauster rotating speed S is gradually reduced, increase is sent
The heat that blower fan is taken away, until air exhauster mouth temperature T2 is equal to design temperature T；
（3）When temperature t2 in the conjunction of gas outlet is less than design temperature t, air exhauster rotating speed S first remains unchanged, by
Step reduces pressure fan rotating speed s, reduces the heat that pressure fan is taken away, until air exhauster mouth temperature t2 is equal to design temperature t；When sending
When rotation speed of fan s arrival lower limit air exhauster mouth temperature t2 is still below design temperature t, then air exhauster rotating speed S is stepped up,
Increase the heat entered in casing, until air exhauster mouth temperature t2 is equal to design temperature t；
（4）When temperature t2 in the conjunction of gas outlet is higher than design temperature t, air exhauster rotating speed S first remains unchanged, by
Step increases pressure fan rotating speed s, increases the heat that pressure fan is taken away, until air exhauster mouth temperature t2 is equal to design temperature t；When sending
When rotation speed of fan s arrival higher limit air exhauster mouth temperature t2 remains above design temperature t, then air exhauster rotating speed S is gradually reduced,
Increase the heat that pressure fan is taken away, until air exhauster mouth temperature t2 is equal to design temperature t；
（5）According to step（1）-（4）Control method, make temperature t2 in air exhauster mouth T2 and gas outlet conjunction with
When control in setting value.
Claims (3)
1. a kind of temperature-controlled process of drying room waste-heat recovery device, including casing and heat-exchange device, it is characterised in that described
Heat-exchange device is combined with the casing by heat exchange conjunction, pumps into cold air in the heat-exchange device, using heat friendship
Change principle and absorb the heat for flowing through waste gas in casing；The heat-exchange device be located at heat exchange conjunction top, including pressure fan,
Preheating cavity and gas outlet conjunction, for absorbing the circulation of the air of waste heat；The casing is located at heat exchange conjunction bottom, case
Body side is provided with air exhauster, for the circulation of waste heat gas；The box house, air exhauster oral area, pressure fan oral area,
Point for measuring temperature is respectively arranged with inside the conjunction of gas outlet, for entering to discharging waste heat gas and the temperature before and after cold air heating
Row real-time detection；
The temperature-controlled process of described drying room waste-heat recovery device, for controlling air exhauster mouth and gas outlet conjunction simultaneously
Interior temperature；Case body temperature is T1, and air exhauster mouth temperature is T2, and pressure fan mouth temperature is t1, in the conjunction of gas outlet
Temperature is t2, and air exhauster rotating speed is S, and pressure fan rotating speed is s；Specifically include following step：
（1）When air exhauster mouth temperature T2 is less than design temperature T, air exhauster rotating speed S first remains unchanged, and gradually reduces air-supply
Machine rotating speed s, until air exhauster mouth temperature T2 is equal to design temperature T；When pressure fan rotating speed s reaches lower limit air exhauster mouth temperature
When degree T2 is still below design temperature T, then air exhauster rotating speed S is stepped up, until air exhauster mouth temperature T2 is equal to sets temperature
Degree T；
（2）When air exhauster mouth temperature T2 is higher than design temperature T, air exhauster rotating speed S first remains unchanged, and is stepped up blowing
Machine rotating speed s, until air exhauster mouth temperature T2 is equal to design temperature T；When pressure fan rotating speed s reaches higher limit air exhauster mouth temperature
When degree T2 remains above design temperature T, then air exhauster rotating speed S is gradually reduced, until air exhauster mouth temperature T2 is equal to sets temperature
Degree T；
（3）When temperature t2 in the conjunction of gas outlet is less than design temperature t, air exhauster rotating speed S first remains unchanged, and progressively drops
Low pressure fan rotating speed s, until air exhauster mouth temperature t2 is equal to design temperature t；When pressure fan rotating speed s reaches lower limit exhaust wind
When machine mouth temperature t2 is still below design temperature t, then air exhauster rotating speed S is stepped up, until air exhauster mouth temperature t2 is equal to
Design temperature t；
（4）When temperature t2 in the conjunction of gas outlet is higher than design temperature t, air exhauster rotating speed S first remains unchanged, and progressively increases
Plus pressure fan rotating speed s, until air exhauster mouth temperature t2 is equal to design temperature t；When pressure fan rotating speed s reaches higher limit exhaust wind
When machine mouth temperature t2 remains above design temperature t, then air exhauster rotating speed S is gradually reduced, until air exhauster mouth temperature t2 is equal to
Design temperature t；
（5）According to step（1）-（4）Control method, make the same time control of temperature t2 in air exhauster mouth T2 and gas outlet conjunction
System is in setting value.
2. the temperature-controlled process of a kind of drying room waste-heat recovery device according to claim 1, it is characterised in that：Described send
Blower fan is VFC.
3. the temperature-controlled process of a kind of drying room waste-heat recovery device according to claim 1, it is characterised in that：The row
Gas blower fan is VFC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220577.8A CN104848679B (en) | 2015-05-05 | 2015-05-05 | A kind of temperature-controlled process of drying room waste-heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510220577.8A CN104848679B (en) | 2015-05-05 | 2015-05-05 | A kind of temperature-controlled process of drying room waste-heat recovery device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104848679A CN104848679A (en) | 2015-08-19 |
| CN104848679B true CN104848679B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510220577.8A Active CN104848679B (en) | 2015-05-05 | 2015-05-05 | A kind of temperature-controlled process of drying room waste-heat recovery device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106172906A (en) * | 2016-07-12 | 2016-12-07 | 青岛科技大学 | A kind of multibucket tea drier |
| CN111473614B (en) * | 2020-04-23 | 2020-11-10 | 安徽欧瑞达电器科技有限公司 | Environment-friendly heat pump dryer |
| TWI749768B (en) * | 2020-09-16 | 2021-12-11 | 科嶠工業股份有限公司 | Method and device for monitoring heat recovery efficiency of oven |
| CN112484436B (en) * | 2020-11-28 | 2022-06-07 | 浙江德清炜烨新材料股份有限公司 | Refractory material drying equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7213349B1 (en) * | 2006-08-01 | 2007-05-08 | Brunner Richard A | Heat recovery system for clothes dryer |
| CN202347286U (en) * | 2011-12-06 | 2012-07-25 | 绍兴文理学院 | Intelligent PID (proportional-integral-derivative) controlled residual heat recoverer for oil-contamination-preventing setting machines |
| CN103104922B (en) * | 2013-02-06 | 2015-09-02 | 西安宇清环境工程科技有限责任公司 | A kind of waste incineration flue gas waste heat recovery device |
| CN203657497U (en) * | 2013-06-18 | 2014-06-18 | 重庆长江造型材料（集团）股份有限公司 | Waste heat recovery device of reclaimed sand calcining furnace |
| CN204648906U (en) * | 2015-05-05 | 2015-09-16 | 江苏海大印染机械有限公司 | A kind of drying room waste-heat recovery device |
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| CN104848679A (en) | 2015-08-19 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214000 Jiangsu Province, Wuxi City District plum village Nanfeng Road No. 8 Applicant after: JIANGSU HAIDA TEXTILE MACHINERY CO., LTD. Address before: 214000 Jiangsu Province, Wuxi City District plum village Nanfeng Road No. 8 Applicant before: Jiangsu Haida Dyeing Printing Machinery Co.,Ltd. |
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| GR01 | Patent grant |