CN201878692U - Waste heat recycling system for grain drying system - Google Patents
Waste heat recycling system for grain drying system Download PDFInfo
- Publication number
- CN201878692U CN201878692U CN2010206213615U CN201020621361U CN201878692U CN 201878692 U CN201878692 U CN 201878692U CN 2010206213615 U CN2010206213615 U CN 2010206213615U CN 201020621361 U CN201020621361 U CN 201020621361U CN 201878692 U CN201878692 U CN 201878692U
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- China
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- air
- heat exchanger
- flue gas
- heat
- shell
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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Abstract
The utility model belongs to the technical field of grain drying systems, and discloses a waste heat recycling system for a grain drying system, which comprises an air blower, a hot air stove, a shell and tube exchanger, an induced draught fan, an air heater and a drying tower. The air blower is connected with the hot air stove through a cool air pipeline, the hot air stove is connected with a flue gas inlet of the shell and tube heat exchanger through a flue gas duct, a flue gas outlet of the shell and tube heat exchanger is connected with the induced draught fan, an air outlet of the shell and tube exchanger is sequentially connected with the air heater and the drying tower through hot air pipelines, a heat pipe heat exchanger is disposed between the flue gas outlet of the shell and tube heat exchanger and the induced draught fan, the flue gas outlet of the shell and tube heat exchanger is connected with a flue gas inlet of the heat pipe heat exchanger, a flue gas outlet of the heat pipe heat exchanger is connected with the induced draught fan, an air outlet of the heat pipe heat exchanger is communicated with external air, and an air outlet of the heat pipe heat exchanger is communicated with an air inlet of the shell and tube heat exchanger. In the waste heat recycling system, flue gas is subjected to heat exchange by the heat pipe heat exchanger, temperature of the flue gas discharged is lower, and the whole system is low in energy consumption and energy-saving.
Description
Technical field
The utility model belongs to grain drying systems technology field, has been specifically related to heat recovery system of a kind of grain drying system.
Background technology
The energy is that the mankind depend on for existence and the important substance basis of social development, since reform and opening-up, Chinese national economy is with the fast speeds sustainable development, energy demand increases rapidly, China is being faced with unprecedented energy pressure, energy bottleneck makes the energy security of China and the sustainable development of national economy be faced with great challenge, and country has proposed the important state basic policy of " energy-saving and emission-reduction " for this reason.The enforcement of energy-saving and emission-reduction needs all trades and professions to make joint efforts, and is support with the science and technology strength particularly, puts forth effort to solve " energy-saving and emission-reduction " problem of highly energy-consuming, high pollution industry.
Grain drying is the power consumption link of grain storage and transportation field maximum, is the energy-conservation object of emphasis in this field.At present, the large-scale grain drying system that China is commonly used, the thermal source of this system is fire coal or biomass-burning hot-blast stove.The high-temperature flue gas that hot-blast stove produces enters tubular heat exchanger through gas flue, discharges through air-introduced machine; Outside air enters drying tower by air-heater grain is carried out heat drying after the tubular heat exchanger heating.In this system, hot-blast stove will produce a large amount of flue gases and waste heat, directly not emit by air-introduced machine yet these waste heats have process further just to utilize, and increase system energy consumption greatly.
The utility model content
The heat recovery system of grain drying system that provides a kind of energy consumption little, energy-conservation is provided the purpose of this utility model.
For achieving the above object, the utility model has been taked following technical scheme: heat recovery system of grain drying system, comprise air blast, hot-blast stove, tubular heat exchanger, air-introduced machine, air-heater, drying tower, air blast is connected with hot-blast stove by the cold wind pipeline, hot-blast stove is connected with the gas approach of tubular heat exchanger by gas flue, the exhanst gas outlet of tubular heat exchanger is connected with air-introduced machine, the air outlet slit of tubular heat exchanger by hot-blast pipe line successively with air-heater, drying tower connects, its special feature is: be provided with heat exchange of heat pipe between the exhanst gas outlet of tubular heat exchanger and air-introduced machine, the exhanst gas outlet of tubular heat exchanger is connected with the gas approach of heat exchange of heat pipe, the exhanst gas outlet of heat exchange of heat pipe is connected with air-introduced machine, the air intlet of heat exchange of heat pipe communicates with outside air, and the air outlet slit of heat exchange of heat pipe communicates with the air intlet of tubular heat exchanger.
In the utility model, heat exchange of heat pipe has the good heat transfer effect, can satisfy the heat transfer of the little temperature difference.After the heat exchange of hot-blast stove fume process tubular heat exchanger, temperature has about 100 ℃, and heat still has to recycle and is worth.At this moment flue gas enters heat exchange of heat pipe again, heat is passed to the outside air that passes through heat exchange of heat pipe, and outside air temperature after preheating has preliminary rising, and mix with the new air that replenishes this moment again, after entering the further heating of tubular heat exchanger, enter drying tower through air-heater.This process flue gas is through the heat exchange of heat exchange of heat pipe, and the temperature that discharges is lower, and the energy consumption of whole system is also more little, has reached purpose of energy saving.
Description of drawings
Fig. 1 is a structure diagram of the present utility model.
The specific embodiment
Below in conjunction with specific embodiment the technical solution of the utility model is done into a ground and introduce in detail, but protection domain of the present utility model is not limited thereto.
As shown in Figure 1, heat recovery system of grain drying system, comprise air blast 1, hot-blast stove 2, tubular heat exchanger 3, air-introduced machine 4, air-heater 5, drying tower 6, air blast 1 is connected with hot-blast stove 2 by cold wind pipeline 7, hot-blast stove 2 is connected with the gas approach 31 of tubular heat exchanger 3 by gas flue 8, the exhanst gas outlet 32 of tubular heat exchanger 3 is connected with air-introduced machine 4, the air outlet slit 34 of tubular heat exchanger 3 by hot-blast pipe line 9 successively with air-heater 5, drying tower 6 connects, between the exhanst gas outlet 32 of tubular heat exchanger 3 and air-introduced machine 4, be provided with heat exchange of heat pipe 10, the exhanst gas outlet 32 of tubular heat exchanger 3 is connected with the gas approach 101 of heat exchange of heat pipe 10, the exhanst gas outlet 102 of heat exchange of heat pipe 10 is connected with air-introduced machine 4, the air intlet 103 of heat exchange of heat pipe 10 communicates with outside air, and the air outlet slit 104 of heat exchange of heat pipe 10 communicates with the air intlet 33 of tubular heat exchanger 3.
During drying grain, air blast 1 blasts hot-blast stove 2 with cool ambient air by cold wind pipeline 7, the elevated temperature heat flue gas that hot-blast stove 2 produces is through gas flue 8, the gas approach 31 of tubular heat exchanger 3 enters tubular heat exchanger 3, after the heat exchange, waste heat flue gas is discharged from the exhanst gas outlet 32 of tubular heat exchanger 3, gas approach 101 by heat exchange of heat pipe 10 enters heat exchange of heat pipe 10, the cool ambient air that heating is come in through the air intlet 103 of heat exchange of heat pipe 10, after the heating, hot-air mixes with the new air that replenishes again, after the air intlet 33 of tubular heat exchanger 3 enters tubular heat exchanger 3 further heating, hot-air is discharged from the air outlet slit 34 of tubular heat exchanger 3, through hot-blast pipe line 9, air-heater 5 is sent to 6 pairs of grains of drying tower and is carried out heat drying; Waste heat flue gas after heat exchange of heat pipe 10 utilizes is once more discharged through air-introduced machine 4 from the exhanst gas outlet 102 of heat exchange of heat pipe 10.
Claims (1)
1. heat recovery system of grain drying system, comprise air blast, hot-blast stove, tubular heat exchanger, air-introduced machine, air-heater, drying tower, air blast is connected with hot-blast stove by the cold wind pipeline, hot-blast stove is connected with the gas approach of tubular heat exchanger by gas flue, the exhanst gas outlet of tubular heat exchanger is connected with air-introduced machine, the air outlet slit of tubular heat exchanger by hot-blast pipe line successively with air-heater, drying tower connects, it is characterized in that: between the exhanst gas outlet of tubular heat exchanger and air-introduced machine, be provided with heat exchange of heat pipe, the exhanst gas outlet of tubular heat exchanger is connected with the gas approach of heat exchange of heat pipe, the exhanst gas outlet of heat exchange of heat pipe is connected with air-introduced machine, the air intlet of heat exchange of heat pipe communicates with outside air, and the air outlet slit of heat exchange of heat pipe communicates with the air intlet of tubular heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206213615U CN201878692U (en) | 2010-11-24 | 2010-11-24 | Waste heat recycling system for grain drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206213615U CN201878692U (en) | 2010-11-24 | 2010-11-24 | Waste heat recycling system for grain drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201878692U true CN201878692U (en) | 2011-06-29 |
Family
ID=44176204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206213615U Expired - Fee Related CN201878692U (en) | 2010-11-24 | 2010-11-24 | Waste heat recycling system for grain drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201878692U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103070234A (en) * | 2013-02-07 | 2013-05-01 | 山东理工大学 | Waste heat recovering ear-corn drying machine |
| CN106212671A (en) * | 2016-08-18 | 2016-12-14 | 太仓市冠东机械科技有限公司 | A kind of tower grain drier |
| CN111473517A (en) * | 2020-04-16 | 2020-07-31 | 吉林市安瑞克能源科技开发有限公司 | Adjustable tube bundle type heat exchanger, drying tower heat exchange adjusting system and method |
-
2010
- 2010-11-24 CN CN2010206213615U patent/CN201878692U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103070234A (en) * | 2013-02-07 | 2013-05-01 | 山东理工大学 | Waste heat recovering ear-corn drying machine |
| CN106212671A (en) * | 2016-08-18 | 2016-12-14 | 太仓市冠东机械科技有限公司 | A kind of tower grain drier |
| CN111473517A (en) * | 2020-04-16 | 2020-07-31 | 吉林市安瑞克能源科技开发有限公司 | Adjustable tube bundle type heat exchanger, drying tower heat exchange adjusting system and method |
| CN111473517B (en) * | 2020-04-16 | 2022-04-15 | 吉林市安瑞克能源科技开发有限公司 | Adjustable tube bundle type heat exchanger, drying tower heat exchange adjusting system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: COFCO ENGINEERING TECHNOLOGY (ZHENGZHOU) CO., LTD. Free format text: FORMER NAME: ZHENGZHOU SCIENTIFIC RESEARCH + DESIGN INSTITUTE STATE ADMINISTRATION OF GRAIN R;GU ZHENHONG |
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| CP01 | Change in the name or title of a patent holder |
Address after: 450053 Henan city of Zhengzhou province Huiji District Nanyang Road No. 153 Patentee after: COFCO ENGINEERING & TECHNOLOGY (ZHENGZHOU) CO., LTD. Address before: 450053 Henan city of Zhengzhou province Huiji District Nanyang Road No. 153 Patentee before: Zhengzhou Scientific Research & Design Institute of State Administration of Grain Reserve |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110629 Termination date: 20161124 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |