Air extractor

Abstract

An air extractor including a liquid cavity, an air extracting cavity, a connection channel, a drainage channel, and an air extracting channel. The liquid cavity contains rotating liquid and the air extracting cavity has liquid therein. The liquid in the air extracting cavity is in communication with the liquid cavity through the connection channel, the liquid cavity drains the liquid through the drainage channel. The air extracting cavity is in communication with an object to be subjected to air extraction through the air extracting channel and air in the object to be subjected to air extraction flows through the air extracting channel into the air extracting cavity.

1 . An air extractor, comprising:
 a liquid cavity,   an air extracting cavity,   a connection channel,   a drainage channel, and   an air extracting channel,   wherein the liquid cavity contains rotating liquid, the air extracting cavity has liquid therein, the liquid in the air extracting cavity is in communication with the liquid cavity through the connection channel, the liquid cavity drains the liquid through the drainage channel, a communication position of the connection channel and the liquid cavity is closer to the center of the rotating liquid in the liquid cavity than a communication position of the drainage channel and the liquid cavity, the air extracting cavity is in communication with an object to be subjected to air extraction through the air extracting channel, and air in the object to be subjected to air extraction flows through the air extracting channel into the air extracting cavity.   
     
     
         2 . The air extractor according to  claim 1 , wherein the air extracting cavity comprises two or more air extracting sub-cavities corresponding to the air extracting sub-cavities, the drainage channel comprises two or more drainage sub-channels, the air extracting channel comprises two or more air extracting sub-channels, and the connection channel comprises two or more connection sub-channels; the air extracting cavity is in communication with the liquid cavity through the drainage sub-channel; the air extracting sub-cavity is in communication with the liquid cavity through the connection sub-channel; the air extracting sub-cavity is in communication with the object to be subjected to air extraction through the air extracting sub-channel; in addition, an environment channel is further disposed on the air extracting sub-cavities, the environment channel comprises two or more environment sub-channels, and the air extracting sub-cavity is in communication with the external environment through the environment sub-channel; and the air extractor further comprises switching mechanisms for controlling opening and closing of the channels. 
     
     
         3 . The air extractor according to  claim 2 , wherein a first switching mechanism is disposed on the connection sub-channel, a second switching mechanism is disposed on the drainage sub-channel, a third switching mechanism is disposed on the air extracting sub-channel, and a fourth switching mechanism is disposed on the environment sub-channel. 
     
     
         4 . The air extractor according to  claim 3 , wherein continuous air extraction of the device is achieved through the following switching actions:
 (1) denoting one or more of the air extracting sub-cavities as an air extracting sub-cavity A, opening the corresponding first switching mechanism and third switching mechanism, and meanwhile, closing the corresponding second switching mechanism and fourth switching mechanism, performing operation on one or more of the remaining air extracting sub-cavities and denoting the same as an air extracting sub-cavity B, opening the corresponding second switching mechanism and fourth switching mechanism, and meanwhile, closing the corresponding first switching mechanism and third switching mechanism;   (2) starting the device, to form a rotational liquid flow in the liquid cavity, thereby extracting the air in the object to be subjected to air extraction into the air extracting sub-cavity A through the air extracting sub-channel corresponding to the air extracting sub-cavity A, and causing the liquid to enter the air extracting sub-cavity B through the drainage sub-channel corresponding to the air extracting sub-cavity B;   (3) before the liquid level of the liquid in the air extracting sub-cavity A is reduced to a communication position between the connection sub-channel and the air extracting sub-cavity A, closing the first switching mechanism and the third switching mechanism corresponding to the air extracting sub-cavity A and the second switching mechanism and the fourth switching mechanism corresponding to the air extracting sub-cavity B, and opening the second switching mechanism and the fourth switching mechanism corresponding to the air extracting sub-cavity A and the first switching mechanism and the third switching mechanism corresponding to the air extracting sub-cavity B, thereby extracting the air in the object to be subjected to air extraction into the air extracting sub-cavity B through the air extracting sub-channel corresponding to the air extracting sub-cavity B, and causing the liquid to enter the air extracting sub-cavity A through the drainage sub-channel corresponding to the air extracting sub-cavity A;   repeating steps (1) to (3) to control opening and closing of the switching mechanisms on the air extracting sub-cavity A and the air extracting sub-cavity B, thereby achieving continuous extraction of the air in the object to be subjected to air extraction.   
     
     
         5 . The air extractor according to  claim 3 , wherein continuous air extraction of the device is achieved through the following switching actions:
 (1) denoting one or more of the air extracting sub-cavities as an air extracting sub-cavity A, opening the corresponding first switching mechanism and third switching mechanism, and meanwhile, closing the corresponding second switching mechanism and fourth switching mechanism, performing operation on one or more of the remaining air extracting sub-cavities and denoting the same as an air extracting sub-cavity B, opening the corresponding second switching mechanism and fourth switching mechanism, and meanwhile, closing the first switching mechanism and the third switching mechanism;   (2) starting the device, to form a rotational liquid flow in the liquid cavity, thereby extracting the air in the object to be subjected to air extraction into the air extracting sub-cavity A through the air extracting sub-channel corresponding to the air extracting sub-cavity A, and causing the liquid to enter the air extracting sub-cavity B through the drainage sub-channel corresponding to the air extracting sub-cavity B;   (3) before the liquid level of the liquid in the air extracting sub-cavity A is reduced to a communication position between the connection sub-channel and the air extracting sub-cavity A, closing the first switching mechanism corresponding to the air extracting sub-cavity A and the second switching mechanism and the fourth switching mechanism corresponding to the air extracting sub-cavity B; and opening the third switching mechanism corresponding to the air extracting sub-cavity B to enable the air extracting sub-cavity A to be in communication with the air extracting sub-cavity B, then closing the third switching mechanism corresponding to the air extracting sub-cavity A, and opening the second switching mechanism and the fourth switching mechanism corresponding to the air extracting sub-cavity A and the first switching mechanism corresponding to the air extracting sub-cavity B, thereby extracting the air in the object to be subjected to air extraction into the air extracting sub-cavity B through the air extracting sub-channel corresponding to the air extracting sub-cavity B, and causing the liquid to enter the air extracting sub-cavity A through the drainage sub-channel corresponding to the air extracting sub-cavity A;   (4) before the liquid level of the liquid in the air extracting sub-cavity B is reduced to a communication position between the connection sub-channel and the air extracting sub-cavity B, closing the first switching mechanism corresponding to the air extracting sub-cavity B and the second switching mechanism and the fourth switching mechanism corresponding to the air extracting sub-cavity A; and opening the third switching mechanism corresponding to the air extracting sub-cavity A to enable the air extracting sub-cavity A to be in communication with the air extracting sub-cavity B, then closing the third switching mechanism corresponding to the air extracting sub-cavity B, and opening the second switching mechanism and the fourth switching mechanism corresponding to the air extracting sub-cavity B and the first switching mechanism corresponding to the air extracting sub-cavity A, thereby extracting the air in the object to be subjected to air extraction into the air extracting sub-cavity A through the air extracting sub-channel corresponding to the air extracting sub-cavity A, and causing the liquid to enter the air extracting sub-cavity B through the drainage sub-channel corresponding to the air extracting sub-cavity B;   repeating steps (3) and (4) to achieve continuous extraction of the air in the object to be subjected to air extraction.   
     
     
         6 . The air extractor according to  claim 1 , wherein an air bubble channel and an air bubble collection cavity are disposed on the liquid cavity, the air bubble collection cavity is in communication with the liquid in the liquid cavity through the air bubble channel, and air bubbles in the liquid cavity enters the air bubble collection cavity through the air bubble channel under the effect of buoyancy. 
     
     
         7 . The air extractor according to  claim 6 , wherein the device comprises an air release channel and an air release mechanism, and the air release mechanism is in communication with the air bubble collection cavity through the air release channel, to discharge the air in the air collection cavity. 
     
     
         8 . The air extractor according to  claim 1 , wherein an air-liquid blocker is disposed in the air extracting cavity, the air-liquid blocker configured to reduce contact between the air and the liquid, and the air-liquid blocker can move up or down with the liquid level of the liquid. 
     
     
         9 . The air extractor according to  claim 1 , wherein a plurality of liquid cavities are disposed and connected in series, the drainage channel of a preceding liquid cavity is in communication with the connection channel of a following liquid cavity. 
     
     
         10 . The air extractor according to  claim 1 , wherein a plurality of liquid cavities are disposed and connected in parallel, the connection channels of all the liquid cavities communicate and are in communication with the air extracting cavity, and the drainage channels of all the liquid cavities communicate for draining the liquid.