Underwater ultrasonic thawing apparatus

Abstract

An underwater ultrasonic thawing apparatus includes a thawing treatment tank where thawing treatment water; an underwater ultrasonic vibrator configured to be fixed to an inner face of the thawing treatment tank and to emit ultrasound; a temperature sensor configured to detect a temperature of the thawing treatment tank; a temperature adjuster configured to adjust the thawing treatment water to a predetermined temperature; a controller configured to control the underwater ultrasonic vibrator; and a separation and hold means configured to separate and hold a stuff to be thawed which is thrown in the thawing treatment tank and the underwater ultrasonic vibrator.

1 . An underwater ultrasonic thawing apparatus having a thawing treatment tank where thawing treatment water is filled, an underwater ultrasonic vibrator configured to be fixed to an inner face of the thawing treatment tank and to emit ultrasound, a temperature sensor configured to detect a temperature of the thawing treatment tank, a temperature adjuster configured to adjust the thawing treatment water to a predetermined temperature, and a controller configured to control the underwater ultrasonic vibrator, the apparatus comprising:
 a separation and hold means configured to separate and hold a stuff to be thawed, which is thrown in the thawing treatment tank, and the underwater ultrasonic vibrator.   
   
   
       2 . The underwater ultrasonic thawing apparatus according to  claim 1 , wherein the separation and hold means is configured to be a mesh plate to cover a side face and bottom face of an inner periphery side of the thawing treatment tank with a definite distance to the side face and the bottom face. 
   
   
       3 . The underwater ultrasonic thawing apparatus according to  claim 1 , wherein the separation and hold means is configured to be disposed in the thawing treatment tank and to be a mesh basket in which the stuff to be thawed is thrown. 
   
   
       4 . The underwater ultrasonic thawing apparatus according to  claim 3 , wherein the mesh basket is configured to be a rotatable mesh basket in the thawing treatment tank. 
   
   
       5 . The underwater ultrasonic thawing apparatus according to  claim 1 , wherein the thawing treatment tank is configured to have a structure of a multilayer wall. 
   
   
       6 . The underwater ultrasonic thawing apparatus according to  claim 2 , wherein a gap between the multilayer wall is configured to be vacuum. 
   
   
       7 . The underwater ultrasonic thawing apparatus according to  claim 1 , wherein a plurality of the underwater ultrasonic vibrators is comprised and a part of the plurality of the underwater ultrasonic vibrators has a frequency of 25 kHz to 300 kHz and the others have a frequency of 300 kHz to 2000 kHz. 
   
   
       8 . The underwater ultrasonic thawing apparatus according to  claim 1  further comprising a circulation pump configured to circulate the thawing treatment water filled in the thawing treatment tank.