The wide， light and thin walls are made of rigid polyurethane foam at the same time as structural materials， making the whole structure have the advantages of light weight， large span and high load. The thinner polyurethane sandwich plate can meet the relevant provisions on building energy consumption limit， which allows the use of thinner plates during construction and saves building space.
The spacing of pull rivets at inner and outer corners is mm and mm respectively; After the polystyrene library is installed， the wall panel joints shall be evenly sealed and decorated with silicone sealant.
La luvilleCondensation pressure if the condenser has poor heat transfer， the condensation pressure will increase and the cooling power will decrease. For cooling， power consumption increases. If the configuration of the cooling system is too small， the heat transfer capacity will be insufficient， resulting in high condensation pressure.
Cold storage has good water tightness. Polyurethane rigid foam has low water absorption， good permeability to water vapor， foam holes， disconnected and closed porosity of more than %. It is a dense microporous foam material， which is more dense than air surface， and is not easy to permeate. It belongs to hydrophobic materials.
Shama hubInstallation of cold storage， fruit preservation cold storage and medical cold storage have stable， safe， reliable and maintenance free performance. The technical level has reached the domestic level and the advanced level of similar international products. If there is a large amount of ice and water， it must be cleaned in time， and it must not be knocked during cleaning， so as not to damage the ground and affect the service life of the cold storage.
Emergency measures during the use of the medical cold storage project， it may also encounter power failure or power failure. In fact，La luvilleInstallation of fresh-keeping cold storage， most medical cold storage projects will be equipped with emergency equipment， so that the medical cold storage project can achieve the effect of normal power supply. Once the automatic temperature or humidity monitoring system is abnormal， the cold storage door should be closed in time So as not to expose more air conditioners， resulting in corresponding problems in the quality of stored products. The medical cold storage project also has a self rescue system in time. If the temperature of the cold storage exceeds the limit， the system cooling system will also be turned on. When the temperature returns to normal it will be automatically turned off.
Features of quick freezing warehouse: the quick freezing technology is advanced， the frost free quick freezing method is adopted， the famous brand compressor and refrigeration accessories are configured， and the automatic frost is adopted. The method can only be used by microcomputer. The refrigeration system adopts green refrigerant， which belongs to the international advanced refrigeration technology in the st century.
The type of cold storage to be built in the type of cold storage should be determined according to the type of circulating goods. For example， the cold storage that only circulates vegetables can only build a fresh-keeping cold storage， it should be determined according to the type， cycle frequency， whether to use shelf stacking and so on. For example， for fruits and vegetables packed in cartons， the storage capacity of -kg per cubic meter can be referred to， and the size of cold storage construction can be estimated in combination with the storage capacity rate of about .-..
The transportation tools used in the controlled atmosphere storage shall meet the requirements of relevant standards.
Disadvantages of multi-layer cold storage: the vertical transportation volume of the warehouse is large， and the goods in and out and operation management are not as convenient as single-layer cold storage; With the development of the floor load capacity， the floor area ratio of each cold room is low; When the multi-storey cold storage is built on the foundation with poor ground resistance， the foundation construction is complex. High cost; When prefabricated components are used， large construction equipment is required and the construction period is long.
Installation materialsProper protective measures shall be taken during transportation to prevent plate from being strangled and scratched.
Moreover， polyurethane does not produce harmful gas at high temperature.
Frozen and refrigerated storage began to change to shelf and pallet storage to complete the goods according to & ldquo; First in first out & rdquo; It is conducive to improve the quality of commodity storage and reduce loss.
- precautions for floor installation of cold storage: the floor shall be installed flat， the uneven part shall be leveled with materials， and the locking hook between the plates shall be locked to ensure that the warehouse surface is flat without hollow feeling. (note that if this drainage system is installed outdoors in the north， the drainage pipe shall be insulated).
StatisticsIt is required to set up a special tally room (area)， and the temperature of the tally area is usually controlled at ~ + ℃.
Scroll refrigeration unit: at present， scroll refrigeration unit is mainly in fully enclosed structure， which is mainly used in air conditioning (heat pump)
Wall and floor fixtures shall start at corners. According to the plate layout drawing， transport the two plates at the corner of the required device to the device location. According to the plate beam height and the model of the angle iron for fixing the mushroom head nylon bolt， drill a hole at the corresponding elevation in the middle of the plate width. When drilling， the electric drill should be perpendicular to the plate surface. Put the mushroom head nylon bolt in the hole， and tighten it horizontally， so as to make the nylon bolt on the surface of the warehouse plate slightly concave. When setting up the wall panels， foam data and other soft data should be laid on the floor slots along with the floor of the storehouse， so as to avoid damaging the storehouse. After the two corner panels are neutrally removed from the floor， the plane position of the wallboard and the verticality of the storehouse should be adjusted in time according to the location of the laying line， and check whether the top elevation of the wallboard can be correct. After the position of the wallboard is correct， weld the angle iron on the plate beam and fix the inner and outer corners. When welding the angle iron parts the angle iron parts of the warehouse plate shall be covered with a shield to avoid the high temperature of the welding ground baking the warehouse plate and welding slag on the warehouse plate during electric arc welding.
La luvilleThe ground insulation of small， medium and large cold storage is different， which is closely related to the purpose， storage products and size of cold storage. Kuhua refrigeration reminds: ground insulation must be done， otherwise the temperature in the cold storage often fluctuates frequently due to poor insulation performance，La luvilleHow much is the installation of large cold storage， which affects the quality of stored goods. So， what is the difference between the ground insulation of small， medium and large cold storage? How to do better?
In order to prevent damage to the cold storage， it is necessary to lay some foam on the floor of the cold storage tank.
Polystyrene foam: polystyrene foam is a new type of synthetic thermal insulation material. It is a kind of plastic， with small density， light weight， strong heat insulation effect and excellent low temperature resistance. However， due to its cold shrinkage， it is not very convenient for installation.
