Fuel Cell Test Water Circulation Refrigeration Unit

Fuel Cell Test Water Circulation Refrigeration Unit

Our company has developed a constant temperature, constant flow, and constant pressure model for the fuel cell test circulating water system in the new energy industry, contributing to the rapid development of the sector. We take great pride in offering our existing technology and services to the battery manufacturing industry within the new energy field.

Product Features

1. Automatic adjustment of constant temperature, constant flow, and constant pressure performance.

2. Fully intelligent control: Water temperature control range: -50 to 85°C ±0.3; Water flow control range: 1 to 1000L ±0.03L; Pressure control range: 0.1 to 10 ±0.04Mpa.

3. Controller: PLC and touch screen, connectable to an upper computer, remote control, and mobile APP control.

4. The unit is equipped with eight major protection functions: power phase sequence protection, leakage protection, compressor overload protection, coil overheating protection, high and low pressure protection, water shortage protection, chilled water flow protection, and antifreeze protection.

Constant Temperature Principle:

1. The compressor operates, converting low-temperature, low-pressure gaseous refrigerant into high-temperature, high-pressure gaseous refrigerant, which enters the condenser. Part of the heat from the refrigerant in the condenser is expelled by external cooling water or cooling fans. After releasing heat, the refrigerant liquefies into a high-temperature, high-pressure liquid, flows through a dryer filter for drying and filtration, and then enters the expansion valve for throttling (a rapid cooling process) and pressure reduction. The refrigerant liquefies into a low-temperature, low-pressure liquid and enters the evaporator for heat exchange. The low-temperature, low-pressure liquid refrigerant absorbs heat from the surrounding medium (water, oil) in the evaporator. During the heat absorption process, the refrigerant temperature remains constant while its volume changes. After absorbing heat, the low-pressure liquid refrigerant vaporizes into a low-temperature, low-pressure gaseous refrigerant and enters the compressor, where it is compressed into a high-temperature, high-pressure gas and enters the condenser, completing the entire refrigeration cycle.

2. Electric heater auxiliary heating enables rapid temperature rise to the required value for actual working conditions, ensuring high efficiency in maintaining constant temperature.

Constant Flow and Constant Pressure Principle:

Equipped with a variable frequency water pump, flow sensor, and temperature sensor, programmed data is transmitted to the PLC module control system. The PLC module controls the flow and pressure of the variable frequency water pump to achieve constant flow and constant pressure.

Unit Performance

The fuel cell test cooling water refrigeration unit adopts a multi-compressor parallel design, with each refrigeration system having its own refrigerant circuit. The refrigeration system is controlled by a PLC, enabling sequential startup and shutdown. The single-unit failure rate is extremely low, ensuring stable performance and making it the ideal choice for long-term operation.

Battery Testing Method

The inlet and outlet of the circulating water cooling device (battery plate or battery pack) of the battery test system are connected to the inlet and outlet of the fuel cell test circulating water refrigeration unit, forming a complete constant temperature, constant flow, and constant pressure circulating water circuit. This ensures effective control of temperature, flow, and water pressure, enhancing the overall performance of the battery test system.

Quality Assurance

If any part of the equipment purchased from our company is found to be second-hand or counterfeit after delivery, we will compensate the user ten times the value of the faulty part. If the equipment is found to be undersized or of inferior quality after delivery, the user may unconditionally return or exchange it, with all costs borne by our company.

Unit Technical Parameters

Air cooled type water refrigeration machine set Technical Parameters