Definition of bead cold press

The beaded cold press is the compressor of the cold dryer. The amount of water vapor in the compressed air is determined by the temperature of the compressed air: while keeping the compressed air pressure basically unchanged, lowering the temperature of the compressed air can reduce the water vapor content in the compressed air, and the excess water vapor will condense Into liquid. The cold dryer (refrigerated dryer) uses this principle to use refrigeration technology to dry compressed air.

working principle

Therefore, the refrigeration dryer (refrigeration dryer) has a refrigeration system. In the refrigeration system of the refrigeration dryer, the evaporator is a device for conveying cold energy, in which the refrigerant absorbs the heat of the compressed air to achieve the purpose of dehydration and drying. Compressor is the heart, it plays the role of inhaling, compressing and transporting refrigerant vapor. The condenser is a device that emits heat, and transfers the heat absorbed in the evaporator together with the heat converted from the input power of the compressor to the cooling medium (such as water or air) to take away. The expansion valve/throttle valve acts as a throttling and pressure reduction on the refrigerant, and at the same time controls and regulates the amount of refrigerant liquid flowing into the evaporator, and divides the system into two parts, a high-pressure side and a low-pressure side. In addition to the above components, the SSS refrigeration dryer also contains energy regulating valves, high and low pressure protectors, automatic drain valves, control systems and other components.

classification

Cold press is divided into screw cold press and hydraulic cold press. Among them, the lead screw cold press has a turbine, which needs long-term maintenance and is easily damaged. Hydraulic cold press. It is not easy to leak oil and does not require frequent maintenance, and the work efficiency is high.

run

The cold press should meet the following points in normal operation:

①Hydraulic oil is required to be suitable for the oil quality of the cold press, generally 45﹟anti-wear hydraulic oil is used.

②The oil quality of the cold press needs to be updated once a year to ensure the normal operation of the machine.

③Other parts should be maintained regularly.

④ Pay attention to the lighting during work, so that the operator and staff can clearly see the meter numbers of the electric control box, and try not to leave dead corners. Clean and bright lights are required in the cold press workshop.

⑤ Check whether the equipment is in good condition every day.

⑥Check whether there is oil participation every day, and maintain it in time.

⑦ Both parties to the handover must complete the handover and take it seriously, and keep a record of the handover situation, problems, and operation status at the same time.