Notes on construction of kiwi fruit storage cold storage
Notes on construction of kiwi fruit storage cold storage
Kiwi fruit cold storage needs to pay attention to things:
1. The optimal storage temperature of kiwi fruit is about 0 degrees;
2 in the kiwi before storage should not be too much storage, generally 10%-15% of the total is the best;
3. The temperature in the warehouse should not change too much;
4. When the kiwi fruit is out of storage, if the temperature outside the storage is too high, the buffer room should be used for gradual warming to avoid the appearance of water droplets on the surface of the fruit, resulting in fruit decay.
5. The humidity in the warehouse should be adjusted between 90-98%;
6 kiwi fruit storage for ventilation in the storehouse;
Cold storage unit selection:
Kiwi cold storage temperature setting range of 0~6 deG C, generally choose semi-closed piston high temperature refrigeration unit, the advantage is large refrigeration capacity, universal accessories, convenient follow-up maintenance. If the cold storage unit is large, it is recommended to use water cooling unit, the unit is small, you can use air cooling unit, need to increase the condensing area, if it is a large kiwi cold storage, it is recommended to use and online or screw machine.
Selection of cold storage insulation board:
Generally, we will choose to use 10 cm thick polyurethane color steel plate. The assembled cold storage plate is more sanitary and beautiful, and the cold storage door needs to be designed according to the actual situation.
Cold storage unit selection
Kiwi cold storage temperature setting range of 0~6 deG C, generally choose semi-closed piston high temperature refrigeration unit, the advantage is large refrigeration capacity, universal accessories, convenient follow-up maintenance. If the cold storage unit is large, it is recommended to use water cooling unit, the unit is small, you can use air cooling unit, need to increase the condensing area, if it is a large kiwi cold storage, it is recommended to use and online or screw machine.
Selection of cold storage evaporator:
The evaporator of kiwi cold storage is particularly important, because kiwi fruit water content is large, it is best to take shelter from the wind, so the internal evaporator of cold storage should not choose cold fans, aluminum coil is recommended. Aluminum coil is characterized by fast cooling speed, no wind flow, minimize the kiwi moisture, as for condensate water, when we do aluminum plate will be in the aluminum coil under the body of the ditch, with the gutter flow to the tank out of the storage, in order to avoid condensation water dripping into the kiwi.
Kiwi fruit in the cold storage after picking, such as storage in ordinary cold storage or better effect of air conditioning cold storage, prolong the storage period, create more considerable economic income. Kiwifruit refrigeration technology is to ensure that the temperature of kiwifruit cold storage can maintain the relative humidity of 90% to 95%, gas component O2 2 to 4%, gas component CO2 5%, and keep kiwifruit fruit refrigeration temperature at 0℃±0.5℃. It is worth noting that kiwi cold storage must be free of ethylene gas, so it also decided that kiwi must be stored separately, especially not mixed with bananas, apples and other fruits, to avoid mutual ripen. Quality of kiwi fruit cold storage can store kiwi fruit 4-6 months, if you can use air conditioning storage, storage period can generally reach more than half a year.