Hot oil pump with oil-gas multi-stage separation mechanism and method

Abstract

The invention discloses a hot oil pump with an oil-gas multi-stage separation mechanism and a method, relates to the technical field of hot oil pumps, and solves the problem that an existing hot oil pump cannot effectively discharge air in oil liquid, the hot oil pump comprises a base, and an impeller shell and a sealing shaft sleeve are fixedly mounted at the upper end of the base. In the starting process of the hot oil pump, high-speed rotation of the transmission shaft can apply pressure to oil in the shaft sleeve cavity, so that the oil circularly flows through the oil guide pipe, and an oil-gas mixture can be discharged into the collecting barrel through the isolation plate in the flowing process; oil flows back to the interior of the shaft sleeve cavity through the connecting pipe, air is exhausted through the exhaust pipe, when the transmission shaft is started, the conveying piece can be started through the transmission mechanism, the conveying piece intermittently inputs an alcoholic solution into the sealing pipe and sprays the alcoholic solution out through the one-way valve spray head, and hot oil in the oil guide pipe can be cooled.

Description

technical field [0001] The invention relates to the technical field of thermal oil pumps, in particular to a thermal oil pump with an oil-gas multi-stage separation mechanism and a method thereof. Background technique [0002] The hot oil pump is an ideal hot oil circulation pump or heat transfer pump. It is an ideal supporting pump for heat exchange equipment. There are still big defects in the hot oil pump when it is used for a long time, the most important is the high temperature of the oil. And the high-speed rotation of the pump shaft will cause oil cracking, and the gaseous hydrocarbon components with low boiling points will accumulate in the pump body and cover the entire pump shaft, which will cause damage to the mechanical seal of the thermal oil pump. For this reason, the existing thermal oil pump There is an oil-gas separation system installed to prevent the gas from remaining in the pump shaft cavity for a long time, resulting in damage to the mechanical seal. ...

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Problems solved by technology

[0002] The hot oil pump is an ideal hot oil circulation pump or heat transfer pump. It is an ideal matching pump for heat exchange equipment. There are still big defects in the hot oil pump when it is used for a long time, the most important is the high temperature of the oil. And the high-speed rotation of the pump shaft will cause cracking of the oil, and the gaseous hydrocarbon components with low boiling points will accumulate in the pump body and cover the entire pump shaft, which will cause damage to the mechanical seal of the thermal oil pump. For this reason, the existing thermal oil pump It is equipped with an oil-gas separation system to prevent the gas from remaining in the pump shaft cavity for a long time, resulting in damage to the mechanical seal

[0003] Its existing thermal oil pump oil-air separation mechanism collects and separates the air mixed in the oil flowing into the pump shaft cavity, and then transports the air to the impeller cavity through the oil circulation, so that the air follows the oil out of the impeller cavity, so that The air will not remain in the pump shaft chamber, but because the oil outlet and the oil inlet of the thermal oil pump are circulated, after the air is discharged through the oil outlet, part of the air will still follow the oil inlet into the impeller chamber and the pump shaft chamber Inside, the air is not really discharged from the pump body. Every time the air enters the pump shaft cavity, there is still a phenomenon that the oil squeezes the air to make it burst and cause damage to the mechanical seal. For this reason, we propose a Thermal oil pump with oil-gas multi-stage separation mechanism and method

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