Thermal insulation performance of thermal insulation materials for food cold storage the requirement of polyurethane thermal insulation materials for cold storage is thermal insulation performance， and the quality of thermal insulation performance cannot be observed before it is really put into use. It is too late to observe the difference between power consumption. In this large number of experimental tests， strict material selection is carried out in order to achieve this goal: using structural amine ether to reduce thermal conductivity and improve thermal insulation effect; Reduce the water content of various raw materials and formulas as much as possible to avoid deterioration of thermal insulation performance caused by water foaming; Polyether: the product of a large processed factory after strict postprocessing is compared with the polyether of small factory without postprocessing. The foam cell has high uniformity of foam pores and thin wall of foam holes， and its heat preservation performance is obviously better than that of ordinary foam with thick wall and big hole. The use of the tasteless amine catalyst can effectively adjust the balance between foaming and gel reaction， so that the interlayer skin of the sprayed coating is thinner， which is beneficial to the performance of the thermal insulation material of the cold storage. Ordinary polyester polyols are not used.
EnantiomerTips for fresh-keeping storehouse wholesale: the specific functional characteristics of the seafood machine in the fresh-keeping storehouse wholesale are simple to operate， and the microcomputer system is adopted， and the temperature can be adjusted at will; The seafood machine unit has compact structure and stable performance. Users only need to connect the power supply and the cooling water pipeline to put it into operation; The wholesale seafood machine condenser in the fresh-keeping warehouse adopts internally threaded copper pipe. Good heat exchange effect; The seafood machine adopts pure titanium tube evaporator， which has good cooling effect and strong performance; The seafood machine unit wholesale in the fresh-keeping warehouse has extraordinary pressure sealing test， fast cooling， long service life， multiple quality protection devices， high cost performance and good quality. The seafood machine can be customized according to customer requirements; Many fruit wholesalers will transform the original warehouse into a fruit preservation warehouse in order to store fruits for a longer time. Due to the huge difference between warehouses， it needs a lot of attention to transform the warehouse into a qualified energy-saving fruit preservation warehouse.
Large space rate of quick-frozen warehouse: for quick-frozen warehouses of the same size， reasonable design schemes store more goods than unreasonable ones. For the fixed size quick freezing warehouse， how to design it to maximize its space rate is often an important problem considered by our designers. In the design scheme of Lukang medical quick-frozen warehouse， we reasonably designed to expand the original storage capacity of boxes to boxes， 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，EnantiomerPharmaceutical cold storage factory， the electric drill should be perpendicular to the plate surface. Put the mushroom head nylon bolt in the hole， tighten the angle iron， 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.
The three-dimensional automatic cold storage adopts a computer， which can complete the loading unloading and stacking in the storage， the control of storage temperature and the operation of refrigeration equipment.
Whether the water pump works normally and whether the moldy switch is effective. In case of abnormality， timely handle the overhaul and maintenance of the refrigeration compressor in the cold storage: generally， the refrigeration oil and drying filter shall be replaced times after the operation of the cold storage equipment. Replacement after half a year. Depending on the circumstances.
According to the size and nature of the cold storage area and in combination with local regulations， the construction form of food cold storage warehouse is to determine the plane layout based on the site whether it is a single-layer or double-layer warehouse， and the structure is the selection of steel structure or reinforcement solidification. Cold storage capacity， production process， refrigeration， product stacking， temperature etc. are used to determine the size and location of the cold storage room， so that it can become a whole.
The valve temperature sensing package shall be fastened at the evaporator outlet with a metal clamp for mm & mdash; mm， tightly wrapped with double-layer insulation.
Some cold bridge prevention measures shall be taken at the joints between polyurethane insulation boards.
Quality assuranceIt is equipped with temperature compensation to automatically adjust the water temperature. The water temperature of ultrasonic atomization is - degrees. If our humidifier is connected with the warehouse， there is no temperature compensation， even in the work， the water temperature is low
Judge the operating sound of the compressor， and carefully listen to the operating sound of water pump cooling tower， compressor， fan and other equipment. In case of abnormal sound， timely warranty is required， so as to avoid greater damage to the compressor due to untimely warranty.
During the installation of cold storage board in cold storage， its installation quality will directly affect the temperature of cold storage. As an important structure used in the cold storage， the cold storage board should pay attention to the details of its installation， find out the problems that are easy to be ignored， which will affect the use of the cold storage or the whole installation process， so as to waste resources and increase the cost.
The quick freezing storehouse of vegetables and fruits is not suitable to use exhaust cooling， but use fan to supply air for refrigeration， because the gas in the quick freezing storehouse needs to be circulated and dispersed regularly to avoid carbon oxide poisoning caused by high concentration of carbon oxide in local areas. Therefore， in the quick freezing warehouse， the refrigeration equipment needs to be used together with the air conditioning equipment. The selection of refrigeration equipment is different from that of low-temperature freezer and ordinary quick freezing warehouse.
Inspection environmentWhen outdoor air enters the cold storage body， it will not only increase the cold consumption of the cold storage， but also bring water into the warehouse. The condensation of water will lead to the building structure， especially the heat insulation structure，EnantiomerPrice and installation of small cold storage， being damaged by moisture and freezing. Therefore， a moisture-proof and heat insulation layer should be set to keep the cold storage board building moisture-proof and air-proof performance and good sealing.
Opening and closing of valves of refrigeration system.
The drainage at the outlet of the cooling fan， the drainage of the volatile cooler and the road drainage of the refrigerated warehouse storing food or drinks shall not be immediately connected with the sewage and wastewater pipeline system software，EnantiomerCold storage unit installation， but indirect drainage shall be adopted. For the flushing (thawing) water drainage of each layer in the double-layer cold storage， an exhaust valve equipment shall be set in front of the main riser for flushing (thawing) water drainage.
EnantiomerAcid disinfectant can be used for mold removal and disinfection of quick-frozen warehouse.
These measures have achieved quite good results. Compared with several cold storages at a customer in Jining， the cold storages using their white materials have significantly lower power consumption than those using other white materials.
In order to ensure the safety of construction and cold storage operation， the span between the top storage plate supports (lifting points) shall comply with the following provisions: the polystyrene top storage plate (mm thick) has a very large span of M， and the polyurethane top storage plate (mm thick) has a span of m.
