1.0.2 This standard applies to the use of ammonia, halogenated hydrocarbons and their mixtures, carbon dioxide as the refrigerant subcritical vapor compression direct refrigeration system and the use of carbon dioxide, brine, etc. for the carrier refrigerant indirect refrigeration system for the construction of new, expansion and alteration of food cold storage.
1.0.3 Cold storage design should be safe, reliable, energy saving, environmentally friendly, economically rational, advanced and applicable.
1.0.4 In addition to the design of cold storage should be consistent with the provisions of this standard, should also comply with the requirements of the current national standards.
4.1.1 Cold storage site selection should be consistent with the following provisions:
1 should be consistent with the requirements of the local master plan;
2 the use of ammonia refrigeration system should be selected in the adjacent centralized residential area of the maximum frequency of the year the wind direction of the wind side of the downwind side;
3 site should be surrounded by a good sanitary articles with and should be avoided and far away from the harmful gases, fumes, Dust and other sources of pollution;
4 should be combined with the logistics flow and near- and long-term development and other factors, choose in the area of convenient transportation;
5 desirable to have a reliable water and power supply and drainage conditions;
6 should be to avoid flooding and mudslides prone to flooding and mudslides as well as other geologically unfavorable conditions;
7 cold storage should also be considered as a comprehensive site for the special requirements of various cold storage. The special requirements of various types of cold storage.
4.1.2 The general layout of the cold storage shall comply with the following provisions:
1 It shall meet the comprehensive requirements of logistics process, transportation, management and reasonable arrangement of equipment pipelines and fire safety;
2 When setting up a special railroad line, the storage shall be arranged along the special railroad line;
3 When setting up a water terminal, the storage shall be close to the water terminal;
4 When setting up a water terminal, the storage shall be arranged near the water terminal. p>
4 When the road transportation is the main, the warehouse should be close to the main entrance and exit of the cold storage transportation layout;
5 production and processing enterprises should be arranged in the factory's cold storage in the clean area, and should be in the polluted area in the summer of the maximum frequency of the wind direction of the wind on the wind side;
6 food wholesale market, the ammonia refrigeration system of the cold storage should be arranged in the warehousing area and should be arranged separately from the trading area;
7 In the warehouse area in a prominent position should be set up wind direction markers.
4.1.3 The general layout of the cold storage should be a combination of the near and far future, the near future is the main focus of the storage area, railroad lines, water terminals, equipment pipelines, roads, back to the car park and other resources should be coordinated planning, rational arrangement, and should take into account the needs of future expansion.
4.1.4 Cold storage general vertical design should be consistent with the following provisions:
1 There should be a good rainwater drainage system in the depot, the road and the return yard should be anti-water and anti-skid technical measures;
2 Depot periphery should not be used to discharge sewage in the open ditch.
4.1.5 The main roads in the depot area should be paved with concrete or asphalt etc. suitable for vehicle traffic.