Cold chain storage is the use of temperature control facilities to create a suitable temperature and humidity environment and to store and store the goods. Only the storage goods in the optimal temperature and humidity environment, can ensure the quality and performance of storage goods, prevent deterioration, reduce loss.
Cold chain storage is also a cryogenic storage process based on refrigeration technology and refrigeration technology. If the control of the cold chain storage process is not accurate enough, the quality of the goods will be reduced, as well as the changes in the structure, the change of color, the damage in collision and extrusion, and the reproduction of the microorganism. Therefore, it is necessary to improve the efficient operation mode of packaging and storage in cold chain storage, storage and transportation and management, temperature and humidity recorder or temperature and humidity monitoring system, cold chain data management platform and so on. It can effectively improve and optimize the cold chain storage management process and make it conform to relevant regulations and standards, so that the enterprise can operate at the cost of operation. To find the best balance between quality control and quality control, so as to fully protect the quality of products and create sustained value growth for customers.
1. Unit and standardization of cold chain storage
Cold chain storage system mainly includes pallets and other units, all kinds of racks, handling equipment, temperature and humidity monitoring system and management information system. It is the basis for determining the whole cold chain standard to standardize the loading unit and integrated unit of cold chain storage, including the size of the packaging unit of the rack, the size of the bracket and other supporting facilities.
Cold chain storage has a high requirement for storage equipment and storage environment. In the planning and design of cold chain storage system, the technical dimensions of all cold chain docking facilities are directly related to the size of all cold chain docking facilities due to the non-standardization and customization of the load unit of cold chain storage and the integration unit, and the number of basic technologies for the design and planning of cold chain storage facilities. According to one of the sources, it directly affects the establishment, design and optimization of the storage system solutions, the storage capacity of the storage equipment and the operating efficiency of the handling equipment, and the storage management and operation service between the third party cold chain enterprises. Therefore, the realization of the unit and standardization of cold chain storage can reduce the total cost of the logistics system and obtain the best economic benefit by the optimal allocation of the resources, and the cold chain storage system can provide satisfactory service for the customers.
2. Control elements in cold chain storage environment
The control elements in cold chain storage include product characteristics, cold chain storage equipment, processing technology and operation management.
a) The control factors of product characteristics include raw material quality and storage resistance. The storage temperature conditions, cooling methods and unit packaging requirements of different raw materials will be different. The quality changes of the refrigerated products mainly depend on the controllable range of the temperature of the thermometer, the temperature influence of the stored items, even the temperature gradient between the surface temperature and the inner temperature of the stored articles, and the influence on the quality of the products. Data show that the quality loss of food exposed to normal temperature for 1 hours may be equivalent to the loss of quality stored for half a year at -20.
b) The control factors of cold chain storage equipment include: the quantity and quality of the cold chain storage equipment, the layout and control mode in the warehouse, the temperature and humidity monitoring system and the management and operation platform, the low temperature environment and the storage and transportation tools. The cold chain storage equipment suitable for cold storage and refrigeration is selected to ensure that the cold chain storage environment meets the requirements of environmental temperature, humidity, gas composition, health and so on.
c) The control elements of processing conditions include: cold chain storage technology level, packaging conditions and cleanliness level.
d) The control elements of human condition include: management mode, express operation and food care.
e) The factors that affect the effects of cold storage or freezing include the biochemical characteristics of storage, the cooling method and the cold storage conditions, such as the proportion of oxygen and carbon dioxide in the cold chain storage environment, in order to slow the physiological and biochemical reaction of fresh products and prolong the rack life of the stored items. Some factors are interrelated, such as cold chain storage equipment conditions have direct impact on the processing technology, management and operation process.
3. Design and planning of rack steel structure in cold chain storage environment
Through the design planning and thinking of the rack structure in the cold chain storage environment, the focus of the design of the equipment related to the cold chain storage is analyzed, and each influence factor is strictly controlled. The performance advantages of equipment are fully played, and the characteristics of different equipment are complementation, from the angle of the whole system of cold chain storage. We should optimize, rationally layout and manage to achieve the best cold chain storage efficiency and serve the whole cold chain system.
a) Determine the size, link and structure of rack steel structure.
b) Identify the structural factors at the beginning of the design of steel racks.
c) Cold chain steel rack structure design planning must have a systematic view and a development view.
d) Other details of cold chain steel rack design.
According to the established plan of cold chain storage steel rack structure, reasonable layout of temperature and humidity monitoring nodes, signal feedback wiring, lighting system, transportation system and so on, the establishment of a perfect operation monitoring system and management operation platform, reasonable allocation of storage cargo, the establishment of a reasonable storage environment, frequency and order of storage. Ensure the quality and storage efficiency of cold chain storage.
4. How to choose cold chain storage solution
The main business of the cold chain logistics center at normal temperature includes storage storage, preliminary processing, and product display. The operation area includes physical goods area, temporary storage area, normal temperature area, cool area, cold zone, cryopreservation area, display area, circulation processing area, picking area, waste concentration area, business district and so on. It needs to analyze the cold chain logistics center. Functional area, equipment layout, logistics direction and operation process, according to the analysis of the logistics data between the functional areas, find out the area of frequent internal logistics and relatively less logistics area, determine the close degree of each functional area, and then combine the planning and use area of the operating unit, design the layout and simulate the transportation reasonably. OK, to determine a relatively reasonable solution for cold chain storage. The steel rack structure and its type are one of the most important application technologies, which directly determine the storage, the shortest and longest storage period, the turnover rate and the operation efficiency of the warehouse.
At present, the most common forms of steel rack structure in cold chain storage system include: drive in rack, push back rack, gravity rack, mobile rack, mezzanine and steel platform, radio shuttle racking system, ASRS and so on. In addition, the storage, stacking storage, or other low density storage racks, such as the pallet type rack structure and the cantilever rack structure, can be adopted according to the characteristics of the storage items, the storehouse structure and the operation mode. The first standard of the cold chain storage solution evaluation is suitable, efficient and feasible to meet the needs of the customers. Secondly, it is the economy of the cold chain storage solution itself, in order to compare or rationally integrate the advantages of the cold chain storage solutions, and to establish a suitable evaluation index according to the operation results of the actual cases.
With the data statistics and calculation, the same 2000 warehouses, the radio shuttle storage solution can increase the capacity of the warehouse by 1.8 times, reduce the building cost by 30%, and establish a low cost, efficient and intelligent cold chain storage system, which can not only reduce the long-term operation cost of the customers, but also can significantly improve the customer's logistics response speed. Degree and efficiency.