Heat pump unit closed type automatic cycle water cooling system

Abstract

The invention particularly relates to a heat pump unit closed type automatic cycle water cooling system. The heat pump unit closed type automatic cycle water cooling system mainly solves the problem that an existing heat circulation pump cooling manner is poor in cooling effect, complex in structure and high in cost, causes water resource waste and the like. The system comprises a radiator, a water supplementing tank, a pressure pump, an electromagnetic stop valve, a temperature sensor and a flowmeter, an outlet of the radiator is sequentially connected with the water supplementing tank, the pressure pump, the electromagnetic stop valve, the temperature sensor and the flowmeter through pipelines, and an outlet of the flowmeter is provided with three branch pipelines which are connected with a motor water cooling cavity inlet, a bearing body water cooling cavity inlet and a mechanical sealing water cooling cavity inlet; the electromagnetic stop valve, the pressure pump, the flowmeter and the temperature sensor are integrated in a control cabinet. According to the heat pump unit closed type automatic cycle water cooling system, the automatic cycle water cooling system is provided forlarge high-temperature-resistant pumps under the complex working condition that the temperature is above 100 DEG C, thorough cooling is carried out on sealing parts, and the heat exchange efficiencyis improved.

Description

technical field [0001] The invention relates to the field of thermal circulation pumps, in particular to a closed automatic circulation water cooling system for a heat pump unit. Background technique [0002] The hot water pump unit for heating in winter is usually installed in a relatively closed pump room. When the pump unit is running, the high-temperature hot water it transports will cause local overheating of the pump shaft, housing, skid seat, bearings, mechanical seals and other parts, which will easily cause the above parts Therefore, it is necessary to use auxiliary cooling to cool down the above parts. [0003] At present, the known cooling methods of thermal circulation pumps include air cooling and open water cooling. The principle of the air cooling method is to use the temperature difference between the pump parts and the air for heat exchange. This method has poor cooling effect and complex structure, and can only be used for water pumps below 85 °C. The wor...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor cooling effect, complex structure, high cost and waste of water resources in the existing thermal circulation pump cooling mode, and to provide a closed automatic circulation water cooling system for the thermal pump unit

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