Refrigeration system

The refrigerating system comprises a refrigerating machine, a to-be-refrigerated machine table, a liquid separation assembly and a liquid return assembly, and the to-be-refrigerated machine table is provided with N cavities; the liquid separation assembly is used for dividing a medium flowing out of a medium outlet of the refrigerator into N liquid supply branches corresponding to the cavities; the liquid return assembly is used for enabling media flowing out of the N cavities to be collected into the liquid return assembly through N liquid return branches. One liquid supply branch, one cavity and one liquid return branch form a first loop; the liquid separation assembly is selectively connected with the liquid return assembly through at least one second loop; the refrigerating system is provided with a first mode and a second mode, and in the first mode, the refrigerating system is provided with N first loops and 0 second loops; in the second mode, the refrigerating system is provided with N-M first loops an