Centrifugal supercharging type spiral oil pump, compressor and heat exchange equipment

Abstract

The invention provides a centrifugal supercharging type spiral oil pump, a compressor and heat exchange equipment. The oil pumping amount of the compressor oil pump under the conditions of low rotating speed, high oil temperature and low viscosity can be increased. The spiral oil pump comprises an oil suction pipe and an oil suction pipe core arranged in the oil suction pipe, wherein a spiral groove is formed in the surface of the oil suction pipe core in the axis direction from bottom to top, an oil inlet is formed in the bottom of the oil suction pipe, separation type blades which do not shield the oil inlet are arranged on the periphery of the oil inlet and fixedly connected with the inner wall of the oil suction pipe, and the oil suction pipe and the oil suction pipe core can rotate relatively to realize oil pumping. The separation type blades rotate to stir entering oil to generate strong centrifugal force when the oil suction pipe rotates, and meanwhile, the separation type blades are arranged to avoid blocking of the blades to the oil inlet, the oil inlet amount is increased, and therefore the oil pumping capacity is further improved, the oil pumping capacity of a compressoroil pumping system under the low-rotating-speed and high-temperature conditions is improved, and the oil pump is suitable for the variable frequency compressor.

Description

technical field [0001] The present disclosure relates to the related technical field of frequency conversion compression technology, and in particular, relates to a centrifugal supercharged screw oil pump, a compressor and heat exchange equipment. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Heat exchange equipment generally uses a compressor to drive refrigerant flow for heat exchange. The crankshaft oil circuit structure of the compressor is generally composed of an inertia pump, a viscous pump, a separation pump and various oil holes. The operation of the compressor drives the crankshaft to rotate, and the inertial pump, as the first-stage oil pump device, drives the lubricating oil to flow from bottom to top to the viscous pump under the action of the crankshaft rotation, and the viscous pump continues to transport upwards as the ...

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Problems solved by technology

However, the pump oil volume of the existing screw oil pump is greatly affected by the viscosity of the lubricating oil. In the case of high oil temperature and low viscosity, the pump oil volume is very small. In the case of high working environment temperature, the pump oil volume of the screw oil pump is small. , which is not conducive to the lubrication and cooling of the bearing system, and eventually leads to the failure of the compressor

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