The System Process Flow Is As Follows:
The liquid refrigerant in the evaporator of the unit is exchanged with the circulating air in the interior of the tank. The temperature rises from liquid to gas, and is sucked into the suction port of the compressor. The high-temperature and high-pressure refrigerant gas after compression by the compressor passes through The oil separator separates the refrigerating machine oil carried in the compression process, and then enters the condenser, and exchanges heat with ambient air or cooling water to change from high temperature and high pressure gas to high pressure normal temperature liquid. The high-pressure normal temperature refrigerant liquid is dried by a filter and then throttled and depressurized by an expansion valve, that is, from a high-pressure liquid to a low-pressure liquid. The low-pressure liquid (lower boiling point) enters the evaporator of the unit, and the cooling air is brought to the inside of the tank through the circulating air to achieve refrigeration.
Product features and advantages：
The anti-freeze solution is injected into the 80L pressure vessel, and the fully closed circulation system is adopted. This avoids the opportunity for the antifreeze to contact with the outside air and ensures the condensation of the water. After the expansion tank is protected by nitrogen, the temperature range of the heat transfer liquid is also broadened because its boiling point is increased. In addition, oxidation of the thermally conductive liquid in contact with oxygen in the environment is also avoided, thereby extending the useful life of the thermally conductive liquid.
Product parameters (All products can be customized)
|Temp. control precision||±0.5℃|
|Flow control/Group||2～20 L/min|
|Flow control accuracy/Group||±0.2L|
|Number of fluid output groups||6 Groups|
|flow pressure description||The equipment can control flow and pressure separately. need to control at the same time using different solutions (to be customized)|
|compression||Emerson Valley Wheel Compressor|
|expansion||Danfoss Thermal Expansion Valve/ Emerson Solenoid|
|Dry filter, Pressure||Danfoss|
|Evaporator||Danfoss/KAORI plate heat exchanger|
|Ciriulating pump||Nangfang centrifugal pump can be selected with imported brand magnetic pump|
|Flow, Pressure sensor||German brand flowmeter, johnson Controls pressure|
|input, Display||10 inch color touch screen \ Siemens S7-1200 PLC controller|
|Communication||Modbus RTU protocol RS485 interface, optional CAN communication bus, Ethernet interface TCP/IP protocol|
|Safety protection||With self-diagnosis function; Refrigerator overload protection; High pressure switch, overload relay, thermal protection
device, low liquid level protection, high temperature protection, sensor fault protection and other safety functions
|is it a fully closed system||The whole system is a fully closed system, there will be no oil mist at high temperature, and the water in the air will not be absorbed at low temperature. The system will not increase the pressure due to high temperature in operation, and the thermal conduction medium will be automatically supplemented at low temperature.|
|refrigerant||R404A/R507C/R125/N40 All four refrigerants are available|
|Connection size||There are six groups of inlet and outlet，G3/4|
|Cooling water at 20C°||15000L/H|
|Condenser(W)||Shenshi tube type heat exchanger|
|Optional||220V 60HZ three phase 460V 60H three phase|
|Optional||Extend to -40~+135℃|
|Optional||The size external circulation pipe line is DN15 or DN20, do not throttle, which will increase the circulation pump load,
pipe need to be insulated, and adopt rubber and plastic insulation pipe which can afford high temp.
|Optional||When the temperature is lower than the normal temperature, the refrigeration system adopts the refrigeration PID to adjust the cooling capacity, and does not adopt the heating countermeasures, so as to achieve the purpose of energy saving|
LNEYA attends various exhibitions at home and abroad every year. At the exhibition, we show the latest research equipment of LNEYA. Every year, long-term cooperative customers will come to exhibitions and communicate with us. We are also actively developing new customers to provide them with high quality machines and services.
After sale service
Guarantee that the goods are sold to be conform to the provisions of the contract and qualified new products by factory inspection, quality performance, technical indicators and configured are in accordance with manufactures and technical documents stipulated in the contract.
Installation and debugging
After the arrival of the goods, my company or my company agent is responsible for installation and debugging of equipment need on-site installation and debugging.
Inspection and acceptance
After installation and debugging, acceptance by the customer to confirm the goods to be conform to the provisions of the contract and qualified new products, quality performance, technical indicators and configured are in accordance with manufactures and technical documents stipulated in the contract, and after the confirmation of a full set of technical documents, sign the installation acceptance report and confirm acceptance.
At the same time of installation and debugging of equipment, my company’s after-sales service engineer is responsible for technical training for user until user can be skilled of operation. In the process of using equipment by customer, customer can consult relevant technical issues to after-sales service personal of our company at any time, according to the situation, my company will arrange training on site or remote.
After sale service commitment
A full free one year warranty since the date of acceptance, during the warranty period, all repairs and spare parts are free of charge(instrukent malfunction caused bu human factors will be charged of cost price of spare parts); After the warranty period, we will be responsible for maintenance of equipment for lifetime, according to the actual maintenance fees, appropriate fee will be charged.
(PS:There will have extra charge if the customer need on-site service. And customers need to describe the issue first and then send some failed pics or videos in advance, then Lneya judge if it is possible to go for after-Sales on site. )