GBJ 72-1984 Cold Storage Design Specification GBJ72-84 GBJ72-1984 Standard download decompression password: www.bzxz.net

Engineering Construction Standard Full Text Information System
National Standard of the People's Republic of China
Cold Storage Design Code
72-84
1984 Beijing
Engineering Construction Standard Full Text Information System
W Engineering Construction Standard Full Text Information System
National Standard of the People's Republic of China
Cold Storage Design
Editor Department: Ministry of Commerce of the People's Republic of China Approval Department: State Planning Commission of the People's Republic of China Implementation Date: 1985|| tt||June 1, 2006
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Notice on the Release of "Cold Storage Design Code" Jibiao [1984] No. 2363
According to the requirements of the former State Construction Commission (78) Jianfa Shezi No. 562, the "Cold Storage Design Code" compiled by the Ministry of Commerce and relevant units has been reviewed by relevant departments and is now approved as the national standard "Cold Storage Design Code" GBJ72-84, which will be implemented on June 1, 1985.
This code is managed by the Ministry of Commerce, and its specific interpretation and other work are the responsibility of the Ministry of Commerce Design Institute.
State Planning Commission
November 15, 1984
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Preparation Instructions
This specification is prepared by the Ministry of Commerce Design Institute in conjunction with Shanghai Light Industry Design Institute, Hubei Industrial Building Design Institute, Tianjin Building Design Institute, Shanghai Fisheries College, and Chinese Academy of Fishery Sciences in accordance with the Notice No. 562 of the former State Construction Commission (78). During the preparation process, we followed the Party's line, principles and policies, conducted relatively extensive investigations and scientific experiments, summarized the experience of cold storage construction in my country over the past 30 years, solicited opinions from relevant units across the country twice, and finally reviewed and finalized the draft together with relevant departments. This specification is divided into eight chapters and seven appendices. The main contents include general provisions, general provisions for calculation, construction, structure, refrigeration, electricity, water supply and drainage, heating and ventilation, and ground antifreeze. The design temperature and relative humidity of cold rooms, the determination method of the total heat transfer resistance of cold room enclosures, seasonal correction factors, the heat transfer coefficients and conversion factors of wall and roof pipes, and the average soil temperature of the lowest two months in the past years at a depth of 3.2 meters below the ground in major cities are included in the appendix.
In the process of implementing this specification, if you find that there are any areas that need to be modified or supplemented, please send your opinions and relevant information to the Design Institute of the Ministry of Commerce for reference during revision. Ministry of Commerce
October 1984
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Chapter 1 General
Chapter 2
Calculation of 1
Chapter 3
Section 1
Section 2
Section 3
General Provisions
Site Selection and Layout of Warehouse Area
Warehouse Layout·
Warehouse Building Thermal Engineering·
（ I) Isolation
(I) Vapor and moisture-proof·
(III) Structural requirements·
Section 4
Chapter 4 Conclusion
Section 1
Section 2
Section 3
Chapter 5 System
Section 1
Section 2
Ammonia compressor room and transformer substation
General provisions
Calculation library for cooling equipment load and mechanical load
(I) Cold processing capacity
(I ）Cooling equipment
(III) Air flow organization and ventilation
Section 3
Section 4
Section 5
Section 6
Section 7
Ammonia compressor and auxiliary equipment
Safety protection and automatic control
Insulation of pipelines and equipment
Ice making and storage
(1) Making
Engineering Construction Standard Full Text Information System
W. Engineering Construction Standard Full Text Information System||t t||(I) Storage
Chapter 6 Electricity
Chapter 7 Water Supply and Drainage
Section 1 Supply
Section 2 Drainage
Chapter 8
Heating, Ventilation and Ground Antifreeze
Appendix—
Appendix 2
Appendix 3
Appendix 4
Appendix 5
Appendix 6
Appendix 7
Design temperature and relative humidity of cold room
Total heat transfer resistance R of cold room enclosure structure. Determination method of seasonal correction coefficient n value table
Heat transfer coefficient and conversion coefficient of wall and roof pipes Average soil temperature at a depth of 32 meters below the ground in major cities in the lowest two months of the year
Glossary
Explanation of terms used in this specification
Engineering construction standard full-text information system
Engineering construction standard full-text information system
Main symbols
a——Temperature difference correction coefficient on both sides of the enclosure structure; b——Correction coefficient of heat transfer resistance and correction coefficient of thermal conductivity; c——Specific heat capacity;
D-Warmth index;||tt ||d——diameter, thickness;
——area;
——single piece area;
G, 8——nominal tonnage, weight, processing capacity, H——heat content, steam permeation resistance;
h——height,
k——heat transfer coefficient;
I——length;
——motor rated power;
——load factor, pressure;
——heat, cold load, heat load, water volume; cooling equipment load;
Q,——mechanical load;
——condensing load;
R. —Total heat transfer resistance of the enclosure structure;
-thermal resistance, cold loss compensation coefficient,
-heat storage coefficient of the material;
t——Celsius temperature;
tw——outdoor calculated temperature;
ta——indoor calculated temperature;
V——volume (capacity), air intake, air supply; v——ammonia liquid ratio volume;
Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System||t t||W——flow rate;
α——heat transfer coefficient;
β——fullness of ammonia liquid;
Y——weight;
Ya——weight of air in cold storage room;
n——volume utilization coefficient;
input——thermal conductivity coefficient, gas transmission coefficient of ammonia compressor; p——motor operation time coefficient;
t—time,
9——capacity coefficient of ammonia storage device;
——load margin.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
Chapter I General Provisions
Article 1.0.1 The design of cold storage shall meet the technical requirements and hygienic requirements of food refrigeration, and be technologically advanced, economically reasonable, safe and applicable, and ensure quality. Article 1.0.2 This specification applies to newly built and expanded food cold storage with a nominal volume of 500 cubic meters or more, and does not apply to cave cold storage and stone arch covered cold storage. The refrigeration part of this specification applies to refrigeration devices using ammonia as the working fluid. Article 1.0.3 The design of cold storage should actively and prudently adopt new technologies, new equipment, new processes and new materials on the basis of summarizing practical experience and scientific experiments, so as to make the production process reasonable, save energy and facilitate operation and maintenance. Article 1.0.4 In addition to complying with the provisions of this specification, the design of cold storage should also comply with the requirements of relevant national standards and specifications. Engineering Construction Standard Full-text Information System
Engineering Construction Standard Full-text Information System
Chapter 2 General Provisions for Calculation
Article 2.0.1 The design scale of cold storage should be calculated based on the nominal volume of the cold storage room or ice storage room.
The nominal volume is the net area of ​​the cold storage room or ice storage room (without deducting the area occupied by columns, door lobbies and refrigeration equipment) multiplied by the net height of the room. Article 2.0.2 The storage tonnage of cold storage can be calculated as follows. Ev·yn
Storage tonnage of cold storage (tons);
-Nominal volume of cold storage room or ice storage room (cubic meters); n-Volume utilization coefficient of cold storage room or ice storage room;-Calculated weight of food (kg/cubic meter), 1000-The value converted from one ton to kilogram (kg/ton). (2.0.2)
Article 2.0.3 The volume utilization coefficient of cold storage room shall not be less than that in Table 2.0.3.
Volume utilization coefficient of cold storage room
Nominal volume (cubic meters)
500~1000
1001~2000
2001~10000
10001~15000
>15000
Volume utilization coefficient
Note: ①. For cold storage that only stores frozen food or cooled food, the nominal volume in the table is the sum of the nominal volumes of all cold storage rooms. For cold storage that stores frozen food and cooled food at the same time, the nominal volume in the table is the sum of the nominal volumes of the frozen food cold storage room or the cooled food cold storage room. ②. The volume utilization coefficient of vegetable cold storage should be the value in Table 2.0.3 multiplied by a correction factor of 0.8. Article 2.0.4 The volume utilization coefficient of the ice storage room should not be less than the provisions of Table 2.0.4 Engineering Construction Standard Full Text Information System
W Engineering Construction Standard Full Text Information System
Volume Utilization Coefficient of Ice Storage Room
Net Height of Ice Storage Room (m)
4.21~5.00
5.01~6.00
Volume Utilization Coefficient
Article 2.0.5
The calculated weight of food shall be adopted in accordance with the provisions of Table 2.0.5. Calculation weight of food
Food category
Fresh vegetables
Fresh fruits
Mechanized ice
Weight (kg/m3)
According to actual weight
Note: When pork, beef and mutton (including poultry and rabbit) are stored in the same cold storage, the weight shall be 400 kg/m3. When only frozen mutton cavities are stored, the weight shall be 250 kg/m3. When only frozen beef and mutton are stored, the weight shall be 330 kg/m3. bzxZ.net
Article 2.0.6 In addition to the provisions of the current "Heating, Ventilation and Air Conditioning Design Code" for the outdoor meteorological parameters of cold storage design, the following provisions shall also be met: 1. The outdoor calculated temperature for calculating the heat transmitted to the warehouse enclosure structure shall be the average temperature of the summer air conditioning day;
The outdoor air relative humidity when calculating the minimum total heat transfer resistance of the warehouse enclosure structure shall be the average relative humidity of the hottest month;
2. The outdoor temperature for calculating the door opening heat and the cold room ventilation heat shall be the summer ventilation temperature, and the outdoor relative humidity shall be the summer ventilation outdoor calculated relative humidity; Article 2.0.7 The design temperature and relative humidity of the cold room shall be determined according to the requirements of the refrigeration process of various types of food. Generally, it can be selected according to the provisions of Appendix 1. Engineering Construction Standard Full Text Information System
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