41results about How to "Quick frosting" patented technology

The invention belongs to the technical field of air conditioners and aims to solve the problem that the self-cleaning control mode of the existing air conditioners generally has a slow frosting speed, which leads to a long time for the entire self-cleaning and affects the normal experience of users. For this reason, the present invention provides a kind of self-cleaning control method that is used for air conditioner, and air conditioner comprises refrigerant circulation system and the solution circulation system that is made of indoor solution film, outdoor solution film, liquid pump and storage tank, self-cleaning control The method includes: reducing the frequency of the compressor and reversing the direction of the four-way valve under cooling conditions; reducing the opening of the electronic expansion valve, reducing the speed of the outdoor fan of the air conditioner and increasing the speed of the liquid pump, so that the outdoor heat exchanger Frosting; after the outdoor heat exchanger is frosted, first close the electronic expansion valve, and then close the solenoid valve on the low-pressure side of the compressor after a preset time; heat the outdoor heat exchanger to defrost and clean the outdoor heat exchanger . The invention can improve the self-cleaning efficiency of the outdoor heat exchanger and improve user experience.

The invention discloses a fullness testing structure for a low temperature liquid storage tank. The fullness testing structure comprises a concentrated discharging pipe, a fullness testing pipe, a movable connector and a fullness testing circuit, wherein the fullness testing pipe is provided with a fullness testing valve, the part on the fullness testing pipe positioned above the fullness testing valve is a safety relief part, the part on the fullness testing pipe positioned below the fullness testing valve is a fullness testing part, and the safety relief part is connected with the concentrated discharging pipe through a safety valve group; the movable connector is communicated with the lower end of the fullness testing part; and an inlet of the fullness testing circuit is connected with the movable connector, and an outlet of the fullness testing circuit is also connected with the movable connector. With the fullness testing structure for the low temperature liquid storage tank, a worker can visually know whether the liquid in the low temperature liquid storage tank reaches the rated volume or not.