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-4A60W
Temp Range		-40℃～+100℃
Temperature control precision		±0.5℃
Temperature feedback		Pt100
Temperature display		0.01k
Flow rate output		5～50 L/min
Flow description		When the temp. is below-30℃, the maximum flow rate is 30L/min.
Flow rate accuracy		±0.2 L/min
Pressure display		Adopt the Jeffron pressure sensor, the touch screen display the pressure, can carry on the pressure control adjustment.
Heating power		38kW
		optional 60kW
Cooling capacity	100℃	60kW
	20℃	60kW
	0℃	60kW
	-20℃	35kW
	-35℃	15kW
Compression		Emerson Valley Wheel / Danfoss Scroll flexible Compressor
Expansion valve		Emerson / Danfoss thermal expansion valve
Oil distributor		Emerson
Dry filter, Pressure control		Emerson/Danfoss
Evaporator		Danfoss/KAORI plate heat exchanger
Input,Display		Siemens 7-inch color touch screen \ Siemens s7-1200 PLC controller
program edit		10 procedures may be prepared, each of which may be composed of 40 steps
Communication		CAN communication bus
Safety protection		Self-diagnosis function; freezer overload protection; high pressure pressure switch, overload relay, thermal protection device, low liquid level protection, high temperature protection, sensor fault protection, etc.
Closed circulation system		The whole system is a fully enclosed system. There is no oil mist at high temperature, and low temperature does not absorb moisture in the air. The system does not increase the pressure due to high temperature during operation, and the heat medium is automatically replenished at low temperature.
refrigerant		R404A/ R507C
Connection size		G3/4
Cooling water at 25 C°		12000L/H
Condenser(W)		Tube type heat exchanger (Paris/Shenshi)
Condenser(A)		Copper tube aluminum finned heat exchanger (upward wind)
Power 380V50HZ		84kW
Dimension(W) cm		145205205
Dimension(A) cm
Weight		1300KG
Optional		220V 60HZ Three phase 400V 50HZ Three phase 440V 60HZ Three phase
Optional		Extend to -40~+135℃
Optional		Higher precision control of temperature, flow and pressure
Optional		Automatic antifreeze filling system
Optional		Automatic liquid recovery system

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.