CN101919442A - Stored grain temperature adjusting method - Google Patents
Stored grain temperature adjusting method Download PDFInfo
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- CN101919442A CN101919442A CN2010102446485A CN201010244648A CN101919442A CN 101919442 A CN101919442 A CN 101919442A CN 2010102446485 A CN2010102446485 A CN 2010102446485A CN 201010244648 A CN201010244648 A CN 201010244648A CN 101919442 A CN101919442 A CN 101919442A
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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
Abstract
The invention discloses a stored grain temperature adjusting method, which comprises the following steps of: A, closing all windows and ventilation openings of a warehouse to make the warehouse in a sealed state; and B, starting an axial flow fan on the top of the warehouse to make the whole warehouse and grain piles form negative pressure, discharging the accumulated temperature of the warehouse space part, and making the cold air of the cold cores of the grain piles move to the upper layers the grain piles so as to reduce the grain temperature of the upper layers of the grain piles and the temperature in the warehouse and meet the temperature requirement of temperature-controlled stored grain. The method also comprises a step of compensating cold quantity by using a refrigerator, wherein the axial flow fan on the top of the warehouse is started in the step B, when the accumulated temperature of the warehouse space and the grain temperature of the upper layers of the grain piles is reduced by not more than 28 DEG C, the ventilation openings of a ground cage ventilation pipe network of the warehouse are opened and linked with the refrigerator, and the refrigerator is started for refrigeration, so the stored grain temperature can be reduced and the requirement of standard low-temperature grain storage is met. Because a sealed system is adopted and the negative pressure is formed in the warehouse and the grain piles, the radiating speed of the granary is improved, the cold sources of the cold cores of the grain piles are effectively utilized, the energy is saved and the operating cost is reduced.
Description
Technical field
The present invention relates to a kind of stored grain temperature adjusting method, belong to the foodstuff preservation technical field.
Background technology
Temperature control or low-temperature grain-storage (comprising accurate low-temperature grain-storage) can effectively suppress grain breathing and storage pest, microbial growth, reduce or avoid using the chemicals Pesticidal and sterilizing to handle, slow down the bad speed change degree of ageing and the moisture loss of grain, therefore obtained using widely.Particularly in the grain storage process in the winter time.Utilize extraneous cold dry air that force ventilation is carried out in grain storage, force the damp-heat air in the grain heap to exchange, can effectively change the air condition in the grain heap, significantly reduce the temperature of grain, and storehouse temperature, grain temperature differ less with extraneous cold dry air.But As time goes on, temperature gos up outside the storehouse, and storehouse temperature and grain temperature also increase.Its China Oil and Food Import and Export Corporation heap upper strata temperature and storehouse temperature are gone up especially obvious, storehouse temperature even can be up to 38-40 ℃, and grain heap upper strata temperature also can reach about 34 ℃, and grain is piled temperature inside and also is in about 6 ℃ formation " the cold heart of hot skin " phenomenon.
Normal at present employing warehouse gable axial flow blower method of operating is carried out radiating treatment to silo, promptly in the fine evening warm, that humidity is lower, open door and window, and then open axial flow blower, and allowing air exchanges in storehouse outer air and the storehouse, its shortcoming is to be subjected to the weather environmental limitations, working time is long, power consumption is high, can only reduce storehouse space segment temperature, can not reduce the cereal temperature on grain heap upper strata.
Summary of the invention
Technical problem to be solved by this invention provides a kind of stored grain temperature adjusting method, not only can round-the-clockly use, and energy savings, cooling is quick, and gentle grain heap upper strata, storehouse cereal temperature can reduce simultaneously.
The present invention realizes by following technical proposal: A, close all door and windows of warehouse and ventilating opening, make inside, warehouse be in air-tight state; B, open storehouse apical axis flow fan, allow form negative pressure with the grain heap in the whole storehouse, when discharging silo space segment accumulated temperature, grain cooling in heap heart cold air is moved to grain heap upper strata, reduce that temperature extremely is not higher than 28 ℃ in the gentle storehouse of grain, grain heap upper strata.
It is 2-3 hour that described axial flow blower power is opened running time.
As a kind of technical scheme optimization; after described step B storehouse apical axis flow fan is opened operation; under non-stop-machine situation; detect the gentle grain heap of warehouse space product upper strata grain temperature; when its temperature drops to when not being higher than 28 ℃, by open with the warehouse on the ground the cage ventilation duct Netcom joining refrigeration machine in air port further mend cold.
As another kind of technical scheme optimization; apical axis flow fan every unlatching operation in step B of the present invention storehouse is after 2-3 hour; shut down once; detect the gentle grain heap of warehouse space product upper strata grain temperature; when its temperature drops to when not being higher than 28 ℃; open axial flow blower, further mend cold by unlatching and ground, the warehouse cage ventilation duct Netcom joining refrigeration machine in air port simultaneously.
Owing to closed all door and windows and ventilating opening when application is of the present invention, under the situation that no outside air enters, open axial flow blower and extract hot-air out to the external world, therefore can not be subjected to the weather ambient influnence; Owing to form negative pressure in silo space and grain heap, therefore accelerated the silo radiating rate; When discharging silo space accumulated temperature, take away grain heap upper strata " hot skin " temperature, and make the inner cold heart of grain heap add to the upper strata slowly, effectively utilized the low-temperature receiver of the cold heart of grain heap itself, saved the energy, reduced operating cost.Through this processing, gentle grain heap upper strata, storehouse grain temperature can drop to below 28 ℃, reaches temperature control grain storage requirement.When with the refrigeration machine use in conjunction, because the negative pressure of axial flow blower and the malleation of refrigeration machine act on simultaneously, cold air through the cooling grain heap surface can be utilized again, discharge outside the storehouse after the temperature in reduction silo space, simultaneously, the grain cooling in heap low-temperature receiver on upper strata in the heart also can fast lifting reduce grain heap upper strata grain temperature to the grain face, the low-temperature receiver of lower floor adds at the middle and upper levels in the grain heap, the low-temperature receiver of refrigeration machine adds to middle lower floor, a kind of " open cycle is mended cold " like this, can reduce full storehouse grain temperature fast, reach accurate low-temperature grain-storage requirement, and can save a large amount of energy.
Description of drawings
Fig. 1 is the warehouse perspective view.
Fig. 2 is one group of cage ventilation pipe network profile on the ground.
Among the figure, 1 is axial flow blower, and 2 is the air draft sign, and 3 are heap grain line, and 4 is the warehouse door, and 6 is the warehouse window, and 6 is the grain cooling in heap heart, and 7 is ground cage ventilation pipe network, and 8 is ground cage ventilation duct Netcom air port.
The specific embodiment
The invention will be further described below in conjunction with embodiment.
The experiment storehouse is No. 1 storehouse, No. 8 storehouses, and the contrast storehouse is No. 2 storehouses, and the storehouse type is formula capital construction storehouse, room, brick mix structure, long 50 meters, wide 18 meters, 6 meters of eaves heights, rises 10.5 meters, and line of placing rice is high 4 meters, no furred ceiling.The electronic temperature measurement system is equipped with, the recirculation fumigation system, the silo bottom interval is distributed with 3 cage ventilation pipe networks on the ground, and power is 3kw gable axial flow blower.Stock is 2008 and produces late long grain nonglutinous rices per year, 4 meters of grain stack heights, average moisture 15.2%, high-moisture 17.8%, impurity 1.0%.2010 tons of No. 1 storehouse quantity, 1998 tons of No. 8 storehouse quantity.2003 tons in No. 2 warehousing grains in contrast storehouse.
Embodiment 1
Contrast No. 2 storehouses, storehouse, experimental period is 7:30 in afternoon on the 5th July in 2009, storehouse external environment temperature is 31 ℃, and silo space segment accumulated temperature is 38 ℃, and grain heap upper strata temperature is 32 ℃, adopt traditional ventilation radiating mode, open apart from storehouse apical axis flow fan symmetry two fan windows farthest, opened storehouse apical axis flow fan totally 12 hours, silo space product temperature drop to 32 ℃, 32 ℃ of upper strata grain temperature do not reduce.
Experiment No. 1 storehouse, warehouse, experimental period is 5:30 in afternoon on the 5th July in 2009, and storehouse external environment temperature is 33 ℃, and silo space accumulated temperature is 38 ℃, 32 ℃ of grain heap upper strata grain temperature.Close all door and windows and ventilating opening, under the situation that no outside air enters, opened storehouse apical axis flow fan totally 2 hours, shut down detection silo space accumulated temperature and drop to 28 ℃ by 38 ℃, grain heap upper strata grain temperature drops to 28 ℃ by 32 ℃.After this started shooting 2 hours about 6:00 on 29 every afternoon of July 6 to July.Adopt the method to carry out temperature adjustment, grain heap upper strata grain temperature does not surpass 28 ℃, in, lower floor's grain temperature amounted to and rises 1 ℃ in 14 days, rise less than 0.1 ℃ average every day, minimum to cold podiod sound, the average grain temperature in storehouse is lower than 20 ℃ entirely.
Embodiment 3
Contrast No. 2 storehouses, storehouse, experimental period is 7:30 in afternoon on the 2nd August in 2009, and environment temperature is 33 ℃, and the silo space temperature is 38.5 ℃, and grain heap upper strata temperature is 33.5 ℃.Open all windows of warehouse, allow the interior heat of grain heap distribute naturally from window.3 45kw grain cooling machines are connected with ground cage ventilating opening, and start operation is continuously mended cold.Because grain cooling machine just uses separately, cold air enters through ventilating opening, can only lean on the pressure of self slowly up by cold air, penetrate the grain layer, again since cold air heavier than hot-air, the speed that penetrates the grain layer is slower, mend cold 240 hours after, be 7:30 on 12 afternoon of August, grain heap upper strata temperature drops to 20 ℃ by 32 ℃.
Embodiment 4
Experiment No. 8 storehouses, warehouse, experimental period is 7:30 in afternoon on the 2nd August in 2009, and environment temperature is 33 ℃, and the silo space temperature is 38.5 ℃, and the temperature on grain heap upper strata is 33.5 ℃.Close all door and windows and ventilating opening, under the situation that no outside air enters, opened storehouse apical axis flow fan totally 2 hours, shut down and detect: storehouse temperature drop to 28 ℃, grain heap upper strata grain temperature drop to 28 ℃.The ventilating opening of this moment of cage ventilation on the ground pipe network is opened, and the refrigeration machine of 3 5KW is connected with cage ventilating opening on the ground, opens axial flow blower switch and refrigeration machine switch then, cold 168 hours of the benefit of starting shooting continuously.Promote low-temperature receiver in, the upper strata penetrates, under the effect of this " cold negative pressure ", grain heap upper strata grain temperature drops to 20 ℃ by 28 ℃, full storehouse average grain temperature drop to 15.8 ℃.
This method is before grain heap benefit is cold, " the cold heart " that stored with the grain heap is low-temperature receiver, utilize grain heap " cold negative pressure heat radiation " technology, silo space and grain heap upper strata temperature are dropped to about 28 ℃, for next step mends cold a large amount of energy of having saved, and, open axial flow blower opening refrigeration machine simultaneously, what dispel the heat
Simultaneously, also grain is piled upper strata low-temperature receiver fast lifting to the grain face, reduced grain heap upper strata temperature, the low-temperature receiver of lower floor adds at the middle and upper levels in the grain heap, and the low-temperature receiver of refrigeration machine adds to middle lower floor, carries out " open cycle is mended cold ", reaches quick, energy-conservation cooling-down effect.
Claims (4)
1. stored grain temperature adjusting method is characterized in that may further comprise the steps:
A, close all door and windows of warehouse and ventilating opening, make inside, warehouse be in air-tight state;
B, open storehouse apical axis flow fan, allow form negative pressure with the grain heap in the whole storehouse, when discharging silo space segment accumulated temperature, grain cooling in heap heart cold air is moved to grain heap upper strata, reduce that temperature extremely is not higher than 28 ℃ in the gentle storehouse of grain, grain heap upper strata.
2. stored grain temperature adjusting method according to claim 1 is characterized in that: it is 2-3 hour that described axial flow blower is opened running time.
3. stored grain temperature adjusting method according to claim 1; after it is characterized in that described step B storehouse apical axis flow fan is opened operation; under non-stop-machine situation; detect the gentle grain heap of warehouse space product upper strata grain temperature; when its temperature drops to when not being higher than 28 ℃, by open with the warehouse on the ground the cage ventilation duct Netcom joining refrigeration machine in air port further mend cold.
4. stored grain temperature adjusting method according to claim 1; it is characterized in that apical axis flow fan every unlatching operation in described step B storehouse is after 2-3 hour; shut down once; detect the gentle grain heap of warehouse space product upper strata grain temperature; when its temperature drops to when not being higher than 28 ℃; open axial flow blower, further mend cold by unlatching and ground, the warehouse cage ventilation duct Netcom joining refrigeration machine in air port simultaneously.
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| CN2010102446485A CN101919442A (en) | 2010-08-04 | 2010-08-04 | Stored grain temperature adjusting method |
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| CN2010102446485A CN101919442A (en) | 2010-08-04 | 2010-08-04 | Stored grain temperature adjusting method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885501A (en) * | 2014-03-24 | 2014-06-25 | 苏州边枫电子科技有限公司 | Granary temperature monitoring system with function of real-time alarm indication |
| CN105961081A (en) * | 2016-06-21 | 2016-09-28 | 江苏嘉贤米业有限公司 | Multifunctional intelligent room for rice cultivation and drying storage |
| CN107690988A (en) * | 2017-10-19 | 2018-02-16 | 潘均业 | Low temperature silo |
| CN107711100A (en) * | 2017-10-19 | 2018-02-23 | 潘均业 | Silo |
| CN108353648A (en) * | 2018-02-11 | 2018-08-03 | 成都朗博旺科技发展有限公司 | A kind of multi-mode grain heap cooling system and silo for silo |
| CN108459643A (en) * | 2018-05-10 | 2018-08-28 | 鞍山市粮食科学研究所 | A kind of new energy Intelligent target is to air-cooled green storage technique |
| CN110294225A (en) * | 2019-07-01 | 2019-10-01 | 江门市新会区伍和兴陈皮有限公司 | A kind of dried orange peel storage silo and dried orange peel storage method |
| CN111512798A (en) * | 2020-04-20 | 2020-08-11 | 湖州市储备粮管理有限公司 | Granary with outside-bin refrigeration and temperature control functions and temperature control method |
| CN114208504A (en) * | 2021-12-14 | 2022-03-22 | 成都锦沅广智科技有限公司 | Green low-temperature grain storage fumigation-free low-temperature grain storage system and method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300922A (en) * | 2008-07-02 | 2008-11-12 | 云南昆明国家粮食储备中转库 | Method for storing grains in storehouse with controlled temperature and device thereof |
-
2010
- 2010-08-04 CN CN2010102446485A patent/CN101919442A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300922A (en) * | 2008-07-02 | 2008-11-12 | 云南昆明国家粮食储备中转库 | Method for storing grains in storehouse with controlled temperature and device thereof |
Non-Patent Citations (2)
| Title |
|---|
| 《粮油仓储科技通讯》 20081231 胡德新 重庆地区高大平房仓稻谷实施控温储藏研究 第21-22、33页 1-4 , 第06期 2 * |
| 《粮食科技与经济》 20071231 易世孝等 高大平房仓低风量缓速降温通风试验 第40-42页 1-4 , 第05期 2 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103885501A (en) * | 2014-03-24 | 2014-06-25 | 苏州边枫电子科技有限公司 | Granary temperature monitoring system with function of real-time alarm indication |
| CN105961081B (en) * | 2016-06-21 | 2022-06-17 | 江苏嘉贤米业有限公司 | A multi-functional intelligent room for corn is cultivated and is dried storage |
| CN105961081A (en) * | 2016-06-21 | 2016-09-28 | 江苏嘉贤米业有限公司 | Multifunctional intelligent room for rice cultivation and drying storage |
| CN107690988A (en) * | 2017-10-19 | 2018-02-16 | 潘均业 | Low temperature silo |
| CN107711100A (en) * | 2017-10-19 | 2018-02-23 | 潘均业 | Silo |
| CN107711100B (en) * | 2017-10-19 | 2020-04-24 | 黄世强 | Granary |
| CN107690988B (en) * | 2017-10-19 | 2020-04-28 | 黄世强 | Low-temperature granary |
| CN108353648A (en) * | 2018-02-11 | 2018-08-03 | 成都朗博旺科技发展有限公司 | A kind of multi-mode grain heap cooling system and silo for silo |
| CN108459643A (en) * | 2018-05-10 | 2018-08-28 | 鞍山市粮食科学研究所 | A kind of new energy Intelligent target is to air-cooled green storage technique |
| CN110294225A (en) * | 2019-07-01 | 2019-10-01 | 江门市新会区伍和兴陈皮有限公司 | A kind of dried orange peel storage silo and dried orange peel storage method |
| CN111512798A (en) * | 2020-04-20 | 2020-08-11 | 湖州市储备粮管理有限公司 | Granary with outside-bin refrigeration and temperature control functions and temperature control method |
| CN111512798B (en) * | 2020-04-20 | 2023-10-24 | 湖州市储备粮管理有限公司 | Granary capable of controlling temperature by refrigerating outside granary and temperature control method |
| CN114208504A (en) * | 2021-12-14 | 2022-03-22 | 成都锦沅广智科技有限公司 | Green low-temperature grain storage fumigation-free low-temperature grain storage system and method |
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Application publication date: 20101222 |