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GB/T 29374-2022: Grain and oils storage - Code of practice for applicative technology of grain chiller
Status: Valid GB/T 29374: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 29374-2022 | English | 359 |
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Grain and oils storage - Code of practice for applicative technology of grain chiller
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GB/T 29374-2022
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| GB/T 29374-2012 | English | 679 |
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Grain and oils storage -- Technology regulation of application of grain chiller
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GB/T 29374-2012
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PDF similar to GB/T 29374-2022
Basic data | Standard ID | GB/T 29374-2022 (GB/T29374-2022) | | Description (Translated English) | Grain and oils storage - Code of practice for applicative technology of grain chiller | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B93 | | Classification of International Standard | 65.040.20 | | Word Count Estimation | 18,111 | | Date of Issue | 2022-12-30 | | Date of Implementation | 2023-07-01 | | Older Standard (superseded by this standard) | GB/T 29374-2012 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 29374-2022: Grain and oils storage - Code of practice for applicative technology of grain chiller
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 65.040.20
CCSB93
National Standards of People's Republic of China
Replacing GB/T 29374-2012
Application technical specification for grain cooler for grain and oil storage
Posted on 2022-12-30
2023-07-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"
drafting.
This document replaces GB/T 29374-2012 "Technical Regulations for the Application of Grain Coolers for Grain and Oil Storage", and GB/T 29374-2012
In comparison, except for structural adjustments and editorial changes, the main technical changes are as follows.
--- Changed the configuration requirements related to the horizontal valley cooling ventilation (see 4.1.1, 4.1.2, 4.1.1, 4.1.2, 4.1.3 of the.2012 edition);
--- Added the requirements for the warehouse when the horizontal valley cooling ventilation is used (see 4.2.2, 4.2.4);
--- Increased operating conditions for horizontal valley cooling ventilation (see 4.3.2.5, 4.3.3.2);
--- Increased valley cold ventilation operating procedures (see Chapter 6);
--- Changed the speed requirement when the grain cooler moves (see 7.1.1.1, 6.1.1.1 of the.2012 edition);
--- Added other preparations related to horizontal valley cooling ventilation (see 7.2.3, 7.2.5, 7.2.6, 7.2.7);
--- Increased the connection requirements of the split grain cooler and the ventilation system (see 7.3.2, 7.3.3, 7.3.5);
--- Changed the cooling ventilation parameters (see 7.4.3, 7.4.4, 6.1.3.3, 6.1.3.4 of the.2012 edition);
--- Added cross ventilation cooling ventilation parameters and other related requirements (see 7.4.5, 7.4.7);
--- Added instructions for operation and management during valley cold ventilation (see 7.5.1.2, 7.5.1.3, 7.5.1.5, 7.5.3.1, 7.5.3.4,
7.5.3.5);
---Changed the grain cooler low-temperature grain storage operation card (see Appendix E, Appendix E of the.2012 edition).
Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by the State Administration of Grain and Material Reserves.
This document is under the jurisdiction of the National Grain and Oil Standardization Technical Committee (SAC/TC270).
This document was drafted by. China Grain Reserve Management Group Co., Ltd., Beijing Dongfang Fude Technology Development Center, National Grain and Material Reserve
Bureau of Science Research Institute, Sinograin Chengdu Storage Research Institute Co., Ltd., Liaoning Grain Science Research Institute.
The main drafters of this document. Gong Fusheng, Wang Hua, Zhang Naijian, Tang Jie, Zhu Kai, Feng Lianping, Hao Wei, Yu Suping, Yang Dongping, Shi Cuixia,
Shi Tianyu, Wei Lei, Cao Yi, Zhao Huiyi, Jiang Shiyong, Zhao Jinhui, Zheng Yancheng, Li Yue, Li Haojie, Sheng Qiang, Liu Shengqiang.
The release status of previous versions of this document and the documents it replaces are as follows.
---First published as GB/T 29374-2012 in.2012;
--- This is the first revision.
Application technical specification for grain cooler for grain and oil storage
1 Scope
This document specifies the configuration requirements for the application of grain coolers and the requirements for equipment operators, and establishes the operating procedures for grain cooler ventilation.
It stipulates the preparation before the valley cold ventilation, the operation and management during the ventilation period, the management after the ventilation is over, and other operation instructions, as well as the start of the valley cold ventilation.
and the end conditions, describe the low-temperature grain storage operation record of the grain cooler, the setting of the air relative humidity at the air outlet of the grain cooler, the grain cold ventilation
Corresponding verification methods such as unit energy consumption assessment of wind and unit cost calculation of reducing grain temperature.
This document is applicable to the vertical grain cooling and ventilation of room-type silos, shallow round silos and vertical silos for storing various raw grains, oil crops and non-powder finished grains.
And horizontal valley cooling ventilation for room-type warehouses with a span of 24m or less.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document.
GB/T 18835 Grain cooler
GB/T 25229 Airtightness requirements for grain and oil storage bungalows
GB/T 26882.1 Grain and Oil Storage Grain Situation Monitoring and Control System Part 1.General Rules
GB/T 29890 Technical Specifications for Grain and Oil Storage
LS/T 1202 Technical Regulations for Mechanical Ventilation of Grain Storage
LS/T 1220 Technical specification for horizontal ventilation of one-storey warehouse
3 Terms and Definitions
The following terms and definitions defined in GB/T 29890 apply to this document.
3.1
grain cooler grainchiler
It is a special mechanical equipment that can reduce the temperature of the air and input it into the grain pile to reduce the temperature of the grain.
Note. It mainly includes refrigeration system, air supply and purification device, temperature and humidity adjustment device.
3.2
During the operation of the grain cooler, the average temperature of each ton of grain is reduced by 1°C in electricity consumption.
Note. The unit is kilowatt-hour per ton Celsius [kW·h/(t·℃)].
3.3
Cooling and ventilating grain piles by using a grain cooler.
Note. Including vertical valley cooling ventilation and horizontal valley cooling ventilation.
3.4
After the outside air is cooled by the grain cooler, the air with a certain temperature and humidity is obtained, which passes through the grain pile vertically and exchanges heat with the grain pile to achieve
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