Detailed Description

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)

model		KRY-75/2S KRY-75W/2S
Temp. Range		5℃～+100℃
Temp. control precision		±0.5℃
Temp. feedback		Pt100
Temp. display		0.01k
Flow control/Group		2～25 L/min
Flow control accuracy/Group		±0.2L
Number of fluid output groups		2 Groups
pressure control/Group		0.2bar～2.5bar
flow pressure description		The equipment can control flow and pressure separately. need to control at the same time using different solutions (to be customized)
Heating power		7.5kW
cooling capacity	100℃	10kW
	20℃	10kW
	5℃	7kW
compression		Emerson Valley Wheel Compressor
expansion		Danfoss Thermal Expansion Valve/ Emerson Solenoid
oil distributor		Emerson
Dry filter, Pressure		Emerson/Danfoss
Evaporator		Danfoss/KAORI plate heat exchanger
Ciriulating pump		Nangfang centrifugal pump can be selected with imported brand magnetic pump
Frequency		Delta
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
refrigerant		R404A/R507C/R125/N40 All four refrigerants are available
Connection size		There are two groups of inlet and outlet，G3/4
Cooling water at 20C°		1800L/H
Condenser(W)		Shenshi tube type heat exchanger
Power 380V50HZ		17kW
Dimension cm		70100175
Weight		360KG
Optional		220V 60HZ three phase 460V 60H three phase

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

Quality assurance

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.

Training

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.