Automatic water and oil discharging device for ammonia refrigeration system

Abstract

The invention discloses an automatic water and oil discharging device for an ammonia refrigeration system. A programmable logic controller (PLC) is respectively connected with a water concentration detector, an electric heating tube, a discharge solenoid valve and an ammonia compressor by signal lines; an oil and water collecting separator with an ammonia stop valve is installed at the lowest point of the ammonia refrigeration system; the electric heating tube is fixedly connected with the oil and water collecting separator; and the water concentration detector is fixedly connected with the ammonia stop valve. The automatic water and oil discharging device for the ammonia refrigeration system is capable of controlling the water concentration detector, the electric heating tube, the discharge solenoid valve and the ammonia compressor through the PLC controller, forming a closed system by coordinating the oil and water collecting separator with the ammonia stop valve so as to discharge the oil and water in the ammonia refrigeration system safely and efficiently, solving the problem of the ammonia refrigeration system that the water and oil are discharged manually, greatly improving the refrigeration effect of the ammonia refrigeration system, reducing the energy consumption, and avoiding the environment pollution caused by the discharge of the ammonia refrigerant, has high discharge efficiency, and is safe.

Description

technical field [0001] The invention relates to the field of ammonia refrigeration, in particular to an automatic drainage and oil discharge device for an ammonia refrigeration system. Background technique [0002] The oil in the ammonia refrigeration system adheres to the heat exchange surface, which hinders the heat exchange and reduces the heat exchange efficiency of the refrigeration system. The water will increase the corrosion of the inner wall of the pipeline and equipment, occupy the heat exchange space, and reduce the cooling efficiency. At present, the oil discharge work of the ammonia refrigeration system mostly relies on the manual sewage valve, and more ammonia is brought out during the sewage discharge, which is easy to cause harm to the sewage discharge operators, and at the same time pollutes the surrounding environment, causing great safety hazards. The atmospheric refrigerant ammonia causes waste of resources. Contents of the invention [0003] The tech...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an automatic drainage and oil discharge device for the ammonia refrigeration system, which can solve the problem of manual drainage and oil discharge in the ammonia refrigeration system, has high discharge efficiency, greatly improves the refrigeration effect of the ammonia system, reduces Reduce energy consumption, safety, and avoid environmental pollution

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