The main points to consider in the cold storage design drawing include the following 5 points:
1. Design of cold storage site selection and determine the size of the designed cold storage.
2. Items stored in cold storage and cooling speed requirements of cold storage.
3. Selection of refrigeration compressor units for cold storage.
The cold storage design should take into account the location, temperature control, unit configuration, etc. of the cold storage.
Generally, small and medium-sized cold storage has a series of advantages such as short installation period, fast and efficient use, fair and affordable price, etc., which has been quickly recognized by the market and has been widely used in many industries, such as supermarkets, hotels, fields and food processing production workshops. Hospitals, pharmacies, etc.
So how do you make a cold storage design plan? What points must be known in cold storage engineering design so that the design plan can be more quickly clarified?
1. Design of cold storage site selection and determine the size of the designed cold storage.
The selection of the cold storage site and the preparation of the cold storage design should also consider the necessary ancillary buildings and facilities, such as workshops, packaging and finishing rooms, tool warehouses and loading and unloading platforms. Special attention: If the site has explosion-proof requirements, please strictly follow the relevant explosion-proof requirements for equipment selection.
The installation of small cold storage can be indoor or outdoor, and the cost of indoor installation is relatively lower than that of outdoor installation.
According to the nature of use, cold storage can be divided into three categories: distribution cold storage, retail cold storage, and production cold storage.
The productive cold storage is built in the production area where the supply of goods is relatively concentrated, and factors such as convenient transportation and connection with the market should also be considered.
There should be good drainage conditions around the cold storage, the groundwater level should be low, it is best to have a partition under the cold storage, and good ventilation should be maintained. Keeping dry is very important for the cold storage. The volume of the cold storage The size of the cold storage should be designed according to the maximum amount of agricultural products to be stored throughout the year. This capacity is calculated based on the volume that the stored product must occupy in the cold storage, plus the aisles between the rows, the space between the stack and the wall, the ceiling, and the gap between the packaging. After determining the capacity of the cold storage, determine the length and height of the cold storage.
The cold storage owner must tell the cold storage engineering company the detailed cold storage dimensions, such as: length, width and height dimensions. Only if you know these specific information, you can perform the next calculation. In addition, it is best to know the indoor or outdoor orientation, open windows for ventilation, etc.
2. Items stored in cold storage and cooling speed requirements of cold storage.
Only when you need to put specific products in the cold storage can we know what type of cold storage you need. For example, the temperature and humidity of the fresh-keeping storage for vegetables and fruits are different. Even if the storage is the same, the specific storage items are most suitable for different temperatures. , Cowen may also be different. Put the meat in a freezer with a temperature of -18°C. The size of the unit configured is also different depending on the temperature; the cooling speed of the small cold storage is required. For example, it takes me 30 minutes to reach the cooling temperature I need in this cold storage, or your cold storage is frequently shipped in and out. In such cases, the unit configuration usually needs to be increased, otherwise the temperature of the cold storage will not drop fast enough, resulting in food Deterioration, etc.; how much cargo throughput this cold storage built every day, high throughput will consume more, if the throughput can be estimated, Yuanbao Refrigeration will design a buffer room for customers so that the cold storage can have enough standby time every day, More energy efficient and more power efficient.
3. Selection of refrigeration compressor units for cold storage.
The most critical configuration is the core compressor unit of the cold storage. Common compressors are divided into semi-hermetic pistons, fully enclosed scrolls, fully enclosed pistons, and screw compressors.
The accessories of the refrigeration equipment of the small cold storage account for about 30% of the cost of the cold storage construction.
Selection of Refrigeration Compressor In the refrigeration device of the cold storage, the capacity and quantity of the refrigeration compressor are configured according to the maximum heat load of the production scale and considering various refrigeration parameters. In actual production, it is impossible to be completely consistent with the design conditions. Therefore, it is necessary to select and adjust according to the actual production situation to determine the reasonable capacity and quantity of compressors to be put into operation, in order to use the lowest consumption and the most suitable conditions to complete the required refrigeration tasks of the cold storage.
The more well-known compressor brands are Copeland, Bitzer, etc. The cost of different brands will vary greatly, especially in the domestic refrigeration and freezing market, there are many refurbished and counterfeit compressors and copycat compressors. If customers buy them, they will be used for later maintenance. Maintenance causes great hidden dangers.
Generally, according to the customer's budget, the price of imported or domestic products will fluctuate to a certain extent. The choice of cold storage cooling system The choice of cold storage cooling system is mainly the selection of cold storage compressor and evaporator.
Under normal circumstances, small refrigerators mainly use fully enclosed compressors. Medium-sized cold storages generally use semi-hermetic piston compressors; large-scale cold storages use semi-hermetic screw or piston-type multi-heads in parallel. After the preliminary determination, the later cold storage design and cold storage installation and management are still relatively cumbersome.
4. Selection of cold storage insulation board.
The selection of cold storage insulation materials The selection of cold storage insulation materials must be adapted to local conditions, which not only have good thermal insulation performance, but also be economical and practical. The structure of modern cold storage is developing towards prefabricated cold storage. Cold storage components including moisture-proof layer and thermal insulation layer are made and assembled on site. The advantages are that the construction is convenient, fast, and movable, but the cost is relatively high. If the customer has no special requirements, the cold storage installation company will generally choose the most cost-effective storage board for the customer. Of course, the warehouse board also has high-end and beautiful, and the price of small cold storage will naturally increase.
The cold storage board has: polyurethane, color steel plate, double-sided embossed aluminum plate, stainless steel plate, the thickness is different in high temperature storage and low temperature storage, the common ones are 10 cm, 15 cm and 20 cm.
5. The door of the small cold storage should be reasonably set according to the width of the passage that can be used on site.
Common door designs include sliding doors, sliding doors, electric doors, rolling gates, spring doors, etc.; It can be used reasonably according to the needs of customers. If the size of cargo transportation is limited, it is recommended to use a sliding door that can facilitate large equipment and allow large cargo to enter and exit freely.
In addition, there are: the choice of the cooling system of the cold storage, mainly the selection of the compressor and the evaporator of the cold storage. Under normal circumstances, small-scale cold storage mainly uses fully hermetic compressors; medium-sized cold storage generally uses semi-hermetic compressors; large-scale cold storage uses semi-hermetic compressors, and the condensation methods of refrigeration equipment are divided into air cooling, water cooling and evaporative cooling. Form, users can choose according to the actual situation, cold storage design drawing cold storage installation and management is more cumbersome.
Post time: Jun-11-2022