Multi-point control explosion-proof engine cooling system and method

Abstract

The invention discloses a multi-point control type explosion-proof engine cooling system. The multi-point control type explosion-proof engine cooling system comprises a cooling pump and the like; a trip computer is connected to a flow control valve I, a flow control valve II, a temperature monitoring module I, a temperature monitoring module II and a temperature monitoring module III through signals; the cooling pump is arranged on an output shaft of an explosion-proof electromotor; a cooling liquid cooling device is communicated with the cooling pump through a pipeline; the cooling pump is communicated with an exhaust cooling system and an engine cooling system through pipelines, and the flow control valve I and the flow control valve II are arranged on the pipelines through which the cooling pump is communicated with the exhaust cooling system and the engine cooling system respectively; the exhaust cooling system and the engine cooling system are communicated with the cooling liquid cooling device through a pipeline; the temperature monitoring module I and the temperature monitoring module II are arranged in the exhaust cooling system and the engine cooling system respectively; the temperature monitoring module III is arranged in the pipeline among the exhaust cooling system, the engine cooling system and the cooling liquid cooling device; an explosion-proof electric cooling fan is arranged in the cooling liquid cooling device.

Description

technical field [0001] The invention relates to an explosion-proof engine cooling system, in particular to a multi-point control explosion-proof engine cooling system and method. Background technique [0002] Most of the cooling pumps in the existing explosion-proof engine cooling system are directly driven or hydraulically driven by the explosion-proof engine. The flow rate of the cooling pump directly driven by the explosion-proof engine changes with the speed of the explosion-proof engine. The heat dissipation required by the heat dissipation system changes with the change of the engine temperature and the exhaust temperature after cooling. The explosion-proof engine directly drives the cooling pump to run at a low speed after the high-power operation of the explosion-proof engine. At this time, the temperature of the heat dissipation system is high and a large flow of coolant is required, and the displacement of the cooling pump is reduced due to the reduction in the spe...

AI Technical Summary

Problems solved by technology

When the explosion-proof engine is running at high power, the heat dissipation of the exhaust cooling system is relatively large, so the temperature of the coolant flowing out of the exhaust cooling system is relatively high, and the higher coolant cannot meet the heat dissipation needs of the engine to a certain extent, resulting in Running at higher temperatures or shutting down explosion-proof engines due to overheating

Existing cooling systems for explosion-proof engines are mostly directly driven by explosion-proof engines and hydraulically driven. Due to the limitations of the drive system, the heat dissipation system of explosion-proof engines cannot be arranged in an optimal way for heat dissipation, which affects the efficiency of the heat dissipation system to a certain extent.

And because the explosion-proof engine directly drives its fan speed and cannot change with the change of the coolant temperature, it is easy to cause the problem of overheating of the explosion-proof engine and excessive exhaust temperature due to the inability of the coolant to dissipate heat well.

After the explosion-proof engine stops due to overheating, the cooling fan stops rotating, and the temperature of the coolant cannot be lowered rapidly, so that the explosion-proof engine cannot resume work in a short time

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