Evaporator and refrigeration device

Abstract

The present disclosure provides an evaporator, and relates to the technical field of refrigeration. The evaporator includes an evaporator housing, a condensate input tube, a gas-guide tube, and a refrigerant region, where the refrigerant region is provided around an inner wall of the evaporator housing; the refrigerant region and the evaporator housing enclose at least one refrigerant passage; and the refrigerant passage includes an input end connected to a condenser through the condensate input tube, and an output end connected to a compressor through the gas-guide tube. The present disclosure can improve heat transfer efficiency and cold conduction performance of the evaporator, and has a simple overall structure and a low production cost.

1 . An evaporator, comprising an evaporator housing, a condensate input tube, a gas-guide tube, and a refrigerant region, wherein
 the refrigerant region is provided around an inner wall of the evaporator housing; and the refrigerant region and the evaporator housing enclose at least one refrigerant passage; and   the refrigerant passage comprises an input end connected to a condenser through the condensate input tube, and an output end connected to a compressor through the gas-guide tube.   
     
     
         2 . The evaporator according to  claim 1 , wherein the refrigerant region comprises a refrigerant housing and at least one spiral turbulator sheet; the refrigerant housing is hermetically connected to the evaporator housing; the spiral turbulator sheet is located between the refrigerant housing and the evaporator housing; and the spiral turbulator sheet, the refrigerant housing, and the evaporator housing enclose the at least one refrigerant passage. 
     
     
         3 . The evaporator according to  claim 2 , wherein a heat-exchange member is provided between the evaporator housing and the refrigerant housing; the heat-exchange member comprises a heat insulating body and the spiral turbulator sheet; the heat insulating body is sleeved on or embedded into the refrigerant housing; and the spiral turbulator sheet is protruded from a sidewall of the heat insulating body. 
     
     
         4 . The evaporator according to  claim 3 , wherein when a side of the heat-exchange member away from the spiral turbulator sheet is located on the refrigerant housing, the spiral turbulator sheet extends toward the evaporator housing to form the refrigerant passage where a condensed fluid exchanges heat with outside air through the evaporator housing. 
     
     
         5 . The evaporator according to  claim 3 , wherein when a side of the heat-exchange member away from the spiral turbulator sheet is located on the evaporator housing, the spiral turbulator sheet extends toward the refrigerant housing to form the refrigerant passage where a condensed fluid exchanges heat with outside air through the refrigerant housing. 
     
     
         6 . The evaporator according to  claim 2 , wherein a plurality of spiral turbulator sheets are provided between the refrigerant housing and the evaporator housing; and the refrigerant housing, the evaporator housing, and the plurality of spiral turbulator sheets enclose a plurality of refrigerant passages; and
 the plurality of refrigerant passages are arranged in parallel; and the plurality of refrigerant passages are spaced apart by the spiral turbulator sheets.   
     
     
         7 . The evaporator according to  claim 6 , wherein the spiral turbulator sheet is made of metal, plastic or silica gel. 
     
     
         8 . The evaporator according to  claim 3 , wherein the heat-exchange member is made of plastic or silica gel; and the heat insulating body and the spiral turbulator sheet are an integrated structure or a split structure. 
     
     
         9 . The evaporator according to  claim 2 , wherein an input tube opening and an output tube opening communicating with the refrigerant passage in one-to-one correspondence are respectively provided at two ends of the refrigerant housing; and
 the condensate input tube communicates with the refrigerant passage through the input tube opening; and the gas-guide tube communicates with the refrigerant passage through the output tube opening.   
     
     
         10 . The evaporator according to  claim 9 , wherein the refrigerant housing is provided with a plurality of middle input tube openings at intervals along a flow direction of the refrigerant passage; and the middle input tube openings communicate with the refrigerant passage; and
 the middle input tube openings are located between the input tube opening and the output tube opening; and the middle input tube openings each are connected to the condenser through a corresponding condensate input tube.   
     
     
         11 . The evaporator according to  claim 5 , wherein an input tube opening and an output tube opening communicating with the refrigerant passage in one-to-one correspondence are respectively provided at two ends of the evaporator housing; and
 the condensate input tube communicates with the refrigerant passage through the input tube opening; and the gas-guide tube communicates with the refrigerant passage through the output tube opening.   
     
     
         12 . The evaporator according to  claim 11 , wherein the evaporator housing is provided with a plurality of middle input tube openings at intervals along a flow direction of the refrigerant passage; and the middle input tube openings communicate with the refrigerant passage; and
 the middle input tube openings are located between the input tube opening and the output tube opening; and the middle input tube openings each are connected to the condenser through a corresponding condensate input tube.   
     
     
         13 . The evaporator according to  claim 6 , wherein one end of the refrigerant housing is provided with an outward extending limit ring; and the limit ring is hermetically connected to one end of the evaporator housing; and
 the other end of the evaporator housing away from the limit ring is provided with an inward extending support ring; and the support ring is hermetically connected to the other end of the refrigerant housing.   
     
     
         14 . The evaporator according to  claim 6 , wherein the evaporator housing or the refrigerant housing has a diameter of A, and a thickness of B, the A being 60-100 mm, and the B being 0.5-1.2 mm;
 a width of the refrigerant passage is the same as a pitch of the spiral turbulator sheet; the spiral turbulator sheet has the pitch of C, a width of E, and a thickness of F, the C being 5-20 mm, the E being 2-10 mm, and the F being 0.4-2 mm; and   a ratio of the thickness of the evaporator housing or the refrigerant housing to the pitch of the spiral turbulator sheet is G, the G satisfying 0.06≤G≤0.1.   
     
     
         15 . The evaporator according to  claim 14 , wherein the A is 80-90 mm, the B is 0.8-1.0 mm, the C is 8-16 mm, the E is 5-8 mm, the F is 0.9-1.5 mm, and the G satisfies 0.0625≤G≤0.1. 
     
     
         16 . The evaporator according to  claim 1 , wherein the refrigerant region comprises at least one spiral raised member; the raised member is hermetically connected to the inner wall of the evaporator housing; and an inner chamber of the raised member and the evaporator housing enclose the at least one refrigerant passage. 
     
     
         17 . The evaporator according to  claim 16 , wherein the refrigerant region comprises a plurality of spiral raised members; and inner chambers of the raised members and the evaporator housing enclose a plurality of refrigerant passages; and
 the plurality of refrigerant passages are arranged in parallel; and the plurality of refrigerant passages are spaced apart by the raised members.   
     
     
         18 . The evaporator according to  claim 17 , wherein the raised member and the inner wall of the evaporator housing are an integrally punch-formed structure; and an input port and an output port communicating with the refrigerant passage in one-to-one correspondence are respectively provided at two ends of the raised member at intervals; and
 the condensate input tube communicates with the refrigerant passage through the input port; and the gas-guide tube communicates with the refrigerant passage through the output port.   
     
     
         19 . The evaporator according to  claim 18 , wherein the raised member is provided with a plurality of middle input ports at intervals along a flow direction of the refrigerant passage; and the middle input ports communicate with the refrigerant passage; and
 the middle input ports are located between the input port and the output port; and the middle input ports each are connected to the condenser through a corresponding condensate input tube.   
     
     
         20 . The evaporator according to  claim 16 , wherein the evaporator housing has a diameter of A, and a thickness of B, the A being 60-100 mm, and the B being 0.5-1.2 mm;
 a width of the refrigerant passage is the same as a diameter of the raised member; and the raised member has the diameter of D, and a thickness of H, the D being 5-10 mm, and the H being 0.4-0.8 mm; and   a ratio of the thickness of the evaporator housing to the diameter of the raised member is I, the I satisfying 0.1≤I≤0.12.   
     
     
         21 . The evaporator according to  claim 20 , wherein the A is 80-90 mm, the B is 0.8-1.0 mm, the D is 6-8 mm, the H is 0.5-0.6 mm, and the I satisfies 0.1≤I≤0.11. 
     
     
         22 . A refrigeration device, comprising a machine body, wherein the evaporator according to  claim 1  is provided in the machine body; and the refrigeration device comprises any one of an ice cream maker, a smoothie maker, a cold beverage maker, and an ice maker.