LRS-Ex Explosion-proof Series

Product Description

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LRS series temperature control unit consists of refrigeration system, circulation system and intelligent control system.

Intelligent control system

◆Adopting advanced PLC programmable controller, applying PID algorithm to realize precise temperature control of circulating liquid, which makes the temperature control precision higher. Touch screen human-computer interaction interface, Chinese interface, clear description of parameters, fault records can be checked, real-time temperature trend line, convenient for users to observe and easy to operate. The operation interface can be customized according to user needs, such as bilingual interface.

◆Communication adopts standard RS485 interface, following the standard Modbus-RTU protocol, which can transmit all kinds of data needed according to the user's needs, such as liquid discharge temperature, unit failure and other information.

Refrigeration system

◆Compressor: adopts high energy-efficiency Haili rotary hermetic compressor, with gas-liquid separator, which can separate gas and liquid during operation, and play a role in preventing compressor liquid strike, ensuring long-term service life of the product, high efficiency, reliable operation, and low noise. The compressor can work under any load work and can realize rapid cooling.

◆Air-cooled condenser: internal anticorrosive micro-channel heat exchanger, high heat transfer efficiency, small size, strong stability, easy maintenance (optional water-cooled form: using high-efficiency plate heat exchanger, high heat transfer efficiency).

◆Electronic expansion valve: realize the throttling from condenser to evaporator, meanwhile control the flow rate of refrigerant, ensure the stability of superheat of refrigerant vapor at the outlet of evaporator, the electronic expansion valve has high precision and fast response speed, so as to realize the superior and excellent liquid supply of evaporator.

◆Electronic hot gas bypass valve: the hot gas bypass valve adopts PID control according to the control temperature, quickly adjusting the pressure difference of the compressor so as to avoid frequent starting and stopping of the unit, which affects the life of the compressor; at the same time, it also avoids the drastic fluctuation of the temperature.

◆Evaporator: High-efficiency plate heat exchanger, internal optimized circulation circuit, high heat exchange efficiency.

Heats circulating fluid without a heater

No heater is required as the heat from the discharge is utilized for heating.

Technical Parameters

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Temperature control unit performance curve

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Product Effect Diagram

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Areas of application

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