Malleation protection device

The utility model discloses a malleation protection device, include: pressure stabilizing cavity, input tube, output tube, pressure pipe. This device is with the malleation protection and prevent thatthe refluence is integrated integrative to the setting is in the inside of fermentation cylinder. When pressure in the pressure stabilizing cavity reduced, sealed water passed through pressure pipe automatic supply, has avoided the marsh gas refluence, when steady voltage cavity pressure was too big, because of the existence of baffle, the sealed water in right chamber was discharged from the pressure pipe, has guaranteed the malleation environment in the pressure stabilizing cavity. And the setting of this device because of the fermentation cylinder has the heat preservation outward, so canprevent sealed silk waste ice winter, can prevent sealed water evaporation summer in the inside of fermentation cylinder, and the trouble -free operation of system is guaranteed in unnecessary sealedwater meeting automatic dis