Production Cooling Equipment -5℃ Air cooled screw chiller - BSL Series -100ASEM

BSL Series Air cooled screw chiller

 

Its core working unit consists of four parts, which work together to realize the refrigeration cycle.

Screw Compressor: Known as the "heart" of the equipment, it compresses the refrigerant through the meshing of twin screws to provide continuous and stable refrigeration power. It features high efficiency, low noise, and a long service life.

Air-Cooled Condenser: It dissipates the heat carried by the refrigerant into the air through forced ventilation via fans. It does not require a cooling tower, which simplifies the installation conditions.

Evaporator: It conducts heat exchange with the water to be cooled (refrigerant carrier), lowers the water temperature to -5℃, and then delivers the chilled water to the equipment that needs cooling.

Control System: Adopting PLC (Programmable Logic Controller) or microcomputer control, it can accurately adjust the outlet water temperature, monitor the equipment operation status, and realize automatic start-stop and fault alarm functions.

Air cooled  Screw chiller Working Principle

Core Features

High refrigeration efficiency: The screw compressor has high volumetric efficiency, making it suitable for medium and large-scale refrigeration needs.

Air-cooled design: Eliminates the need for cooling towers, enabling flexible installation and saving space and water resources.

High temperature control accuracy: Can stably maintain an outlet water temperature of -5℃, meeting strict process requirements.

Stable and reliable operation: The screw compressor has a simple structure, minimal wear, and a long maintenance cycle.

Application Scenarios

Food processing: Processes such as freezing, refrigeration, and low-temperature drying.

Chemical industry: Processes including cooling of chemical raw materials and temperature reduction of reaction kettles.

Pharmaceutical field: Refrigeration of pharmaceuticals and supporting of low-temperature experimental equipment.

Others: Scenarios requiring low temperatures around -5℃, such as plastic molding, cooling of electronic components, and cold chain logistics.

 

Safety Protection Function

Key Components

Twin-screw compressor, equipped with high-efficiency heat exchangers (evaporator, condenser).

Control System

PLC intelligent control, supporting temperature setting, operation monitoring, and fault alarm functions.

Auxiliary Components

Dry filter, expansion valve, oil separator, etc., which ensure the stable operation of the system.

 

Q1: What is the working principle of the -5℃ air-cooled screw chiller?

A1: The working principle of the air-cooled screw chiller is as follows: The gaseous refrigerant discharged from the evaporator is adiabatically compressed by the compressor into a high-temperature and high-pressure state. It then enters the condenser, where it is cooled and condensed into a liquid refrigerant at constant pressure. After that, the liquid refrigerant passes through the throttle valve, expands to a low-pressure state, and becomes a gas-liquid mixture. The low-temperature and low-pressure liquid refrigerant absorbs heat from the substance to be cooled in the evaporator, turns back into gaseous refrigerant, and then re-enters the compressor through the pipeline to start a new cycle.

Q2: What applications is this chiller suitable for?

A2:A: It is widely used in scenarios requiring large-scale refrigeration, covering both civil and industrial fields.

• Civil applications: Commercial buildings, entertainment centers, hotels, hospitals, cinemas/theaters, stadiums, large shopping malls, etc.
• Industrial applications: Plastics and rubber industry, pharmaceutical industry, textile industry, chemical industry, food industry, electronics industry, etc.

Q3: What are the characteristics of the -5℃ air-cooled screw chiller?

A3: It usually has the following characteristics:

• Energy efficiency and environmental protection: Some units can produce hot water using waste heat generated during refrigeration, requiring no additional energy consumption and producing no emissions.
• Safety and reliability: It can replace heating devices with potential safety hazards, such as boilers and electric heaters.
• Cost savings: Waste heat recovery reduces the cost of hot water production.
• Low operating costs: It improves unit efficiency and optimizes working conditions.
• Full automatic microcomputer control: No manual monitoring is needed; remote or centralized management can be realized, saving management costs.

Model And Technical Parameter

Remarks：

1.The table cooling conditions:chilled water inlet temperature 12℃,the outlet temperature 7℃,air temperature 35℃；

2.Power Supoly:3P-380V-50Hz,allowing voltage fluctuation ±10%,Allow the voltage difference ±2%；

3.The above data refer to refrigerant R22,if you need refrigerant R407 or other refrigerants,please contract;

4.Specification parameters and dimensions are subject to change due to product improvement without notice.

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Process Flow Diagram

Application Case

Our air cooled screw is widely used across various industrial applications, including casting moulds, rubber vulcanization, wheel temperature control, hot press technology, carbon fiber production, and chemical reactions. It ensures precise temperature management, improving production efficiency and product quality in these processes.

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