CN100410593C - Lower ventilating method and apparatus for low-temperature grain storage film in bungalow barn - Google Patents
Lower ventilating method and apparatus for low-temperature grain storage film in bungalow barn Download PDFInfo
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- CN100410593C CN100410593C CNB2005101226152A CN200510122615A CN100410593C CN 100410593 C CN100410593 C CN 100410593C CN B2005101226152 A CNB2005101226152 A CN B2005101226152A CN 200510122615 A CN200510122615 A CN 200510122615A CN 100410593 C CN100410593 C CN 100410593C
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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
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/51—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for storing agricultural or horticultural products
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Abstract
The present invention relates to a lower ventilating method and a device for a low-temperature grain storage film in a bungalow barn, which belongs to the technical field of grain storage. Through using the method of transverse ventilation and cooling and the method that a ventilation cooling device comprising a transverse air inlet pipe, air return pipes and a vertical probe is arranged in the barn, the present invention overcomes the shortages of the existing method of vertical ventilation and cooling. Cold air uniformly moves from the upper layer of the southern side of a grain stack toward a northern side through the transverse air inlet pipe and returns to a fan through an air return pipe in the northern side to form a closed loop of the cold air. Since the cold air only passes through the high-temperature zone of the upper layer of the grain stack, which does not belong to cold core ranges and does not have big temperature differences, the temperature of the cold air entering the grain stack is convenient to be selected and a moisture condensation phenomenon in the grain stack can not be caused. Since the cold air only passes through a position near the upper part of the grain stack, ventilation volume is one sixth of that of vertical ventilation. The requirements of the refrigerating capacity of a refrigerating machine and the power of the fan are decreased, and energy is saved. Since the cold air does not pass through a cold core of the grain stack, the low-temperature of the cold core of the grain stack is kept and energy is saved.
Description
Technical field
The present invention relates to method of ventilation and device thereof under a kind of horizontal warehouse low-temperature grain storage film, be used for the technology of transporting low temperature air in horizontal warehouse, belong to the grain storage technical field.
Background technology
Horizontal warehouse heap grain in bulk height is 6 meters, is furnished with cage (or underground cage) ventilation network and grain face circulation fumigation Network Ventilation pipe on the ground.In order to make the grain storage temperature reach low temperature or accurate low-temperature condition, generally adopt the air of winter low temperature drying, it is aeration-cooling to utilize cage ventilation pipe network in horizontal warehouse ground to carry out, and makes the temperature of grain heap drop to 0-4 ℃.Though with thickness 2.5cm OWENS CORNING extruded sheet, the grain face is incubated with the PEF warming plate of thickness 2cm around the warehouse interior wall, along with spring, summer temperature constantly rise, the grain temperature is the highest to rise to 33.5 ℃.The highest grain temperature is generally piled the southeast corner on upper strata at grain.And the centre grain temperature of grain heap is generally about 5-8 ℃.So just caused the cold heart situation of grain heap.
In order to rise in spring, summer temperature, with the grain temperature control below 22 ℃, now generally adopt a kind of vertical aeration-cooling method, utilize cage ventilation network and grain face circulation fumigation Network Ventilation pipe on the ground, by the blower fan outside the storehouse cold air that is produced by refrigeration plant is delivered in the cage of ground, cold air is by arranging uniformly cage on the ground, pile by grain from the bottom to top, again by arranging uniform circulation fumigation ventilation duct on the grain face, cold air is drawn to the air inlet of blower fan outside the storehouse, has formed the closed loop of cold air like this.
Vertical aeration-cooling method analyzes theoretically can reach really and reduce the gentle purpose that keeps grain low temperature of grain, but there is following defective in this method:
1, because grain is piled interior cold heart grain temperature and the highest grain temperature of grain face differs about 20 ℃, so the cold air temperature of air intake is difficult to select.Because grain heap inner boundary temperature differs more than 8 ℃, under the certain humidity condition, probably cause the dewfall in the grain heap, cause a hidden trouble to the grain security storage.
2, because cold air is from bottom to top to pass through whole Cang Liangdui, thereby require ventilation volume and refrigeration work consumption all bigger, cause lowering the temperature ventilation power consumption and operating cost are higher.
3, owing to cold air ventilates to going up whole storehouse down, therefore destroy the cold heart phenomenon that forms naturally in the grain heap, wasted natural resources.
Summary of the invention
The objective of the invention is above-mentioned all deficiencies of existing at the vertical down aeration-cooling method of existing grain storage film and device thereof, provide and be beneficial to safe grain storage, and can reduce method of ventilation and device thereof under a kind of horizontal warehouse low-temperature grain storage film of grain storage cost.
The objective of the invention is to be achieved through the following technical solutions, method of ventilation under a kind of horizontal warehouse low-temperature grain storage film is characterized in that in the storehouse that the southern side grain storage film adopts in transverse air-intake and the storehouse horizontal return air formation closed loop method under the grain storage film of north side down; The device of method of ventilation under a kind of horizontal warehouse low-temperature grain storage film, comprise the circulation blower fan that horizontal warehouse is outer, surface cooler, the external cooling pneumatic transmission airduct road, storehouse that is connected with surface cooler, with cold air return air duct outside the storehouse that the circulation blower fan is connected, with the surface cooler refrigerant exit, the refrigeration machine that the refrigerant import connects, it is characterized in that in the storehouse that East and West direction is provided with a perforate pvc pipe that is connected with external cooling pneumatic transmission airduct road, storehouse at least under the grain storage film of southern side, in the storehouse under the grain storage film of north side East and West direction a perforate pvc pipe that is connected with cold air return air duct outside the storehouse is set at least, some vertical perforate PVC inserting tubes are set around in the grain heap in the storehouse.
The present invention is by adopting the transversal ventilation cool-down method and the transversal ventilation heat sink being set, overcome the weak point of existing vertical aeration-cooling method, select the blower fan of suitable air quantity and blast to send in the PVC perforate blast pipe that is embedded in grain heap southern side by the real pipe of PVC by the cold air after the refrigeration plant cooling, cold air is evenly piled the lateral movement northwards of upper strata, southern side from grain by this pipe, to reach the purpose that reduces grain heap upper strata temperature, cold air arrives the PVC perforate backwind tube of north side through grain heap upper strata, concentrate again and get back in the real pipe of a return air, be sent to the return air inlet of blower fan, form the closed circuit of cold air, the present invention has following advantage: 1), cold air is only by grain heap high-temperature region, upper strata, this district does not belong to cold heart scope, the temperature difference is little, is convenient to select to enter the temperature of grain cooling in heap air, can not cause dewfall phenomenon in the grain heap; 2), since cold air only by about about the one meter thickness in grain heap upper strata, the volume that ventilates at the grain heap is the sixth of vertical aeration volume, so reduced the refrigerating capacity of refrigeration machine and the requirement of blower fan power, has saved the energy; 3), because cold air not by the cold heart of grain heap, so kept the low temperature of the grain cooling in heap heart, has been saved the energy.
Description of drawings
Fig. 1 is apparatus of the present invention structural representation;
Among the figure, 1 is the circulation blower fan, and 2 is surface cooler, 3 is refrigerant exit, and 4 is the refrigerant import, and 5 is external cooling pneumatic transmission airduct road, storehouse, 6 is cold air return air duct outside the storehouse, and 7 is horizontal warehouse, and 8 is the real pipe of air-supply in the storehouse, level is to perforate cold air ajutage in the 9 grains heap, 10 is the real pipe of return air in the storehouse, and level is to perforate cold air backwind tube in the 11 grains heap, and 12 is grain face gland material and sealing film, 13 are the grain heap, and 14 is inserting tube.
The specific embodiment
The present invention adopts the transversal ventilation cool-down method, promptly adopts in transverse air-intake and the storehouse under the grain storage film of north side horizontal return air to form the method for closed loop in horizontal warehouse 7 under the grain storage film of southern side; Its device is by the circulation blower fan 1 outside the horizontal warehouse 7, surface cooler 2, the external cooling pneumatic transmission airduct road, storehouse 5 that is connected with surface cooler 2, with cold air return air duct 6 outside the storehouse that circulation blower fan 1 is connected, with surface cooler 2 refrigerant exits 3, the refrigeration machine that refrigerant import 4 connects, the perforate PVC cold air ajutage 9 that is connected with external cooling pneumatic transmission airduct road, storehouse 5 that East and West direction is provided with at least under the grain storage film of southern side in the storehouse, grain storage film following east two some vertical perforate PVC inserting tube 14 formations of setting all around in the grain heap in perforate PVC cold air backwind tube 11 that is connected with cold air return air duct 6 storehouse outside that is provided with at least and storehouse in north side in the storehouse; The perforate PVC cold air ajutage that is provided with in the storehouse, perforate PVC cold air backwind tube are apart from grain storage film 0.8-1.5 rice; The inserting tube 14 that is provided with all around in the grain heap in the storehouse is apart from a corresponding side bulkhead 0.8-1.5 rice, two adjacent inserting tube 14 spacing 0.8-1.5 rice.
Claims (4)
1. method of ventilation under the horizontal warehouse low-temperature grain storage film is characterized in that in the storehouse that the southern side grain storage film adopts in transverse air-intake and the storehouse horizontal return air formation closed loop method under the grain storage film of north side down.
2. ventilation unit under the horizontal warehouse low-temperature grain storage film, comprise the circulation blower fan that horizontal warehouse is outer, surface cooler, the external cooling pneumatic transmission airduct road, storehouse that is connected with surface cooler, with cold air return air duct outside the storehouse that the circulation blower fan is connected, with the surface cooler refrigerant exit, the refrigeration machine that the refrigerant import connects, it is characterized in that in the storehouse that East and West direction is provided with a perforate PVC cold air ajutage that is connected with external cooling pneumatic transmission airduct road, storehouse at least under the grain storage film of southern side, in the storehouse under the grain storage film of north side East and West direction a perforate PVC cold air backwind tube that is connected with cold air return air duct outside the storehouse is set at least, some vertical perforate PVC inserting tubes are set around in the grain heap in the storehouse.
3. ventilation unit under the horizontal warehouse low-temperature grain storage film according to claim 2, the perforate PVC cold air ajutage that it is characterized in that in the storehouse being provided with, perforate PVC cold air backwind tube are apart from grain storage film 0.8-1.5 rice.
4. ventilation unit under the horizontal warehouse low-temperature grain storage film according to claim 2, the inserting tube that it is characterized in that being provided with all around in the grain heap in the storehouse is apart from a corresponding side bulkhead 0.8-1.5 rice, two adjacent inserting tube spacing 0.8-1.5 rice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101226152A CN100410593C (en) | 2005-11-23 | 2005-11-23 | Lower ventilating method and apparatus for low-temperature grain storage film in bungalow barn |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101226152A CN100410593C (en) | 2005-11-23 | 2005-11-23 | Lower ventilating method and apparatus for low-temperature grain storage film in bungalow barn |
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| CN1840974A CN1840974A (en) | 2006-10-04 |
| CN100410593C true CN100410593C (en) | 2008-08-13 |
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| CNB2005101226152A Expired - Fee Related CN100410593C (en) | 2005-11-23 | 2005-11-23 | Lower ventilating method and apparatus for low-temperature grain storage film in bungalow barn |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101569263B (en) * | 2009-06-01 | 2012-07-04 | 国家粮食局科学研究院 | Granary lateral ventilation method and system thereof |
| CN101965870B (en) * | 2010-09-30 | 2013-03-20 | 青岛农业大学 | Method for low temperature grain storage using low-temperature grain storage facility with automatic circulating heat pipe set |
| CN103385070B (en) * | 2013-08-16 | 2016-05-25 | 青岛农业大学 | Dry damp-eliminating apparatus the interior part of a kind of grain storage heap |
| CN104137715A (en) * | 2014-07-30 | 2014-11-12 | 国家粮食局科学研究院 | Negative-pressure-typed granary cooling system |
| CN104770149B (en) * | 2015-03-31 | 2016-09-07 | 绵阳华西仓储服务有限公司 | It is easy to keep the metope ventilation unit of indoor seasoning |
| CN104871747A (en) * | 2015-05-29 | 2015-09-02 | 张家港市双灵制冷设备有限公司 | Low-temperature grain storage method for low-temperature barn |
| CN105843291B (en) * | 2016-05-03 | 2018-08-21 | 中国航天空气动力技术研究院 | A kind of one-storey house silo heat dissipation temperature control system based on hot pipe technique |
| CN106134656A (en) * | 2016-08-29 | 2016-11-23 | 宽甸佳粮仓储设备有限公司 | A kind of silo machine aeration ventilates and mends device for cooling |
| CN106369855A (en) * | 2016-11-03 | 2017-02-01 | 鲍忠庆 | Low temperature storage warehouse refrigeration system and arrangement method |
| CN108204149B (en) * | 2017-12-28 | 2019-07-16 | 长乐致远技术开发有限公司 | Merchandise warehouse |
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|---|---|---|---|---|
| CN2097813U (en) * | 1991-01-04 | 1992-03-04 | 朱柏林 | Multi-purpose granary |
| US5326543A (en) * | 1990-10-01 | 1994-07-05 | Clover Electronica Ltda. | Process, installation and chamber for reducing biological activity in an enclosure, particularly for a storage space |
| JPH07177819A (en) * | 1992-12-29 | 1995-07-18 | Kitami Reiki Kogyo Kk | Open air introducing air-conditioning facility |
| CN1472121A (en) * | 2002-05-27 | 2004-02-04 | 金刚株式会社 | Environment changing device for storing case |
| JP2004065061A (en) * | 2002-08-05 | 2004-03-04 | Dia Seiko Kk | Grain storage warehouse |
-
2005
- 2005-11-23 CN CNB2005101226152A patent/CN100410593C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5326543A (en) * | 1990-10-01 | 1994-07-05 | Clover Electronica Ltda. | Process, installation and chamber for reducing biological activity in an enclosure, particularly for a storage space |
| CN2097813U (en) * | 1991-01-04 | 1992-03-04 | 朱柏林 | Multi-purpose granary |
| JPH07177819A (en) * | 1992-12-29 | 1995-07-18 | Kitami Reiki Kogyo Kk | Open air introducing air-conditioning facility |
| CN1472121A (en) * | 2002-05-27 | 2004-02-04 | 金刚株式会社 | Environment changing device for storing case |
| JP2004065061A (en) * | 2002-08-05 | 2004-03-04 | Dia Seiko Kk | Grain storage warehouse |
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| CN1840974A (en) | 2006-10-04 |
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Granted publication date: 20080813 Termination date: 20101123 |