Anti-high-temperature-engagement protection device and anti-high-temperature-engagement protection mechanism for liquid-spray oilless screw compressor

The invention discloses an anti-high-temperature-engagement protection device for a liquid-spray oilless screw compressor. The anti-high-temperature-engagement protection device comprises a barrel body, a liquid inlet connection tube, a liquid outlet connection tube, a liquid supplement connection tube, a communication tube, an upper pore plate, a lower pore plate, an upper blind plate, a lower blind plate and a liquid level measurement component, wherein the upper blind plate and the lower blind plate are fixed at the upper end and the lower end of the barrel body respectively, and define a closed inner cavity together with the barrel body; the upper pore plate and the lower pore plate are arranged in the inner cavity, and the inner cavity is partitioned into a separation cavity and a liquid level cavity by the lower pore plate; the liquid inlet connection tube, the liquid outlet connection tube and the liquid supplement connection tube are all communicated with the liquid level cavity; one end of the commun