Fluid distributor and heat exchanger

Abstract

This application provides a fluid distributor and a heat exchanger. The fluid distributor includes: a first plate-shaped member in which an inlet flow passage is formed; a second plate-shaped member in which a first outlet flow passage and a second outlet flow passage spaced apart in a height direction are formed; a flow guide frame sealingly fixed between the first plate-shaped member and the second plate-shaped member, having a first flow guide space and a second flow guide space partitioned inside. The flow guide frame includes a flow equalizing plate, and the flow equalizing plate includes a flow equalizing plate bottom portion, and flow equalizing plate extension portions which extend upward from the flow equalizing plate bottom portion to two sides of the flow equalizing plate bottom portion while being inclined in the height direction. This application improves uniformity and a fault tolerance of a refrigerant distribution.

What is claimed is: 
     
         1 . A fluid distributor comprising:
 a first plate-shaped member in which an inlet flow passage is formed;   a second plate-shaped member in which a first outlet flow passage and a second outlet flow passage spaced apart in a height direction are formed; and   a flow guide frame sealingly fixed between the first plate-shaped member and the second plate-shaped member, having a first flow guide space and a second flow guide space partitioned inside, and configured to guide a part of a fluid flowing in from the inlet flow passage to flow out from the first outlet flow passage through the first flow guide space, and guide the other part of the fluid flowing in from the inlet flow passage to flow out from the second outlet flow passage through the second flow guide space.   
     
     
         2 . The fluid distributor according to  claim 1 , wherein the flow guide frame includes a flow equalizing plate adjacent to the inlet flow passage and located below the inlet flow passage in the height direction, and the flow equalizing plate includes a flow equalizing plate bottom portion which is located below the inlet flow passage, and flow equalizing plate extension portions which extend upward from the flow equalizing plate bottom portion to two sides of the flow equalizing plate bottom portion while being inclined in the height direction to distribute the fluid flowing in from the inlet flow passage to the two sides of the flow equalizing plate bottom portion and guide the distributed fluids to the first flow guide space and the second flow guide space respectively. 
     
     
         3 . The fluid distributor according to  claim 2 , wherein
 the flow equalizing plate is a V-shaped plate or an arc-shaped plate.   
     
     
         4 . The fluid distributor according to  claim 2 , wherein
 lengths of the flow equalizing plate extension portions on the two sides of the flow equalizing plate bottom portion are equal.   
     
     
         5 . The fluid distributor according to  claim 2 , wherein
 the flow equalizing plate is the V-shaped plate, and inclination angles with respect to the height direction of the flow equalizing plate extension portions on the two sides of the flow equalizing plate bottom portion are the same.   
     
     
         6 . The fluid distributor according to  claim 1 , wherein
 the flow guide frame further includes:   a first side edge and a second side edge opposite to each other;   a top edge and a bottom edge connecting the first side edge and the second side edge, the bottom edge being the flow equalizing plate; and   a flow guide plate fixed in the flow guide frame, and including:   a first slat having two ends respectively spaced apart from the first side edge and the second side edge by a predetermined distance;   a second slat located between the first slat and the top edge, and having a first end fixed to the first side edge and a second end spaced apart from the second side edge by a predetermined distance; and   a third slat having two ends respectively connected to the second end of the second slat and an end of the first slat away from the first side edge, and   the inlet flow passage, the first slat, the first outlet flow passage, the second slat, and the second outlet flow passage are arranged in sequence from bottom to top in the height direction.   
     
     
         7 . The fluid distributor according to  claim 1 , wherein
 the flow guide frame further includes:   a first side edge and a second side edge opposite to each other;   a top edge and a bottom edge connecting the first side edge and the second side edge, the bottom edge being the flow equalizing plate; and   a flow guide plate fixed in the flow guide frame, and including:   a first slat having two ends respectively spaced apart from the first side edge and the second side edge by a predetermined distance;   a second slat located between the first slat and the top edge, and having two ends respectively spaced apart from the first side edge and the second side edge by a predetermined distance;   a third slat having two ends respectively connected to an end of the second slat close to the second side edge and an end of the first slat close to the second side edge; and   a fourth slat having two ends respectively connected to an end of the second slat close to the first side edge and the top edge, and   the inlet flow passage, the first slat, the first outlet flow passage, the second slat, and the second outlet flow passage are arranged in sequence from bottom to top in the height direction.   
     
     
         8 . The fluid distributor according to  claim 1 , wherein
 in the height direction, the inlet flow passage is disposed between the first outlet flow passage and the second outlet flow passage, and the first outlet flow passage is located above the second outlet flow passage,   the flow guide frame further includes:   a first side edge and a second side edge opposite to each other;   a top edge and a bottom edge connecting the first side edge and the second side edge; and   a flow guide plate fixed in the flow guide frame, and including:   a fifth slat disposed between the inlet flow passage and the first outlet flow passage, having an end fixed to the second side edge and the other end spaced apart from the first side edge by a predetermined distance, and having a shape that maintains a fixed distance from the flow equalizing plate in the height direction, and   an end of the flow equalizing plate close to the second side edge is spaced apart from the second side edge by a predetermined distance, and an end of the flow equalizing plate close to the first side edge is fixed to the first side edge, or extends and is fixed to the top edge and is spaced apart from the other end of the fifth slat by a predetermined distance.   
     
     
         9 . The fluid distributor according to  claim 1 , wherein
 the flow guide frame further includes:   a first side edge and a second side edge opposite to each other;   a top edge and a bottom edge connecting the first side edge and the second side edge; and   a flow guide plate fixed in the flow guide frame, and including:   a sixth slat located between the first outlet flow passage and the second outlet flow passage, and having a first end fixed to the first side edge and a second end spaced apart from the second side edge by a predetermined distance; and   a seventh slat having two ends respectively connected to the second end of the sixth slat and an end of the flow equalizing plate close to the second side edge, and   the inlet flow passage, the flow equalizing plate, the first outlet flow passage, the sixth slat, and the second outlet flow passage are arranged in sequence from top to bottom in the height direction.   
     
     
         10 . A heat exchanger comprising:
 a heat exchange tube group having a plurality of refrigerant flow passages spaced apart in a height direction;   a plurality of fins disposed corresponding to the heat exchange tube group;   a first refrigerant distributor communicating with outlets of the plurality of refrigerant flow passages; and   the fluid distributor according to  claim 1 , the first outlet flow passage and the second outlet flow passage of the fluid distributor respectively communicating with inlets of two refrigerant flow passages adjacent in the height direction.   
     
     
         11 . The heat exchanger according to  claim 10 , further comprising:
 a distributor body having a body inlet and a plurality of body outlets separately communicating with the inlet flow passage of the fluid distributor through a pipeline.   
     
     
         12 . The heat exchanger according to  claim 10 , wherein
 the fins are arranged along a direction perpendicular to an extension direction of the heat exchange tube group.   
     
     
         13 . The heat exchanger according to  claim 10 , wherein
 the refrigerant flow passage is an S-shaped flow passage or a linear flow passage.   
     
     
         14 . A fluid distributor for a heat exchanger comprising:
 a first plate-shaped member comprising an inlet flow passage;   a second plate-shaped member comprising a first and second outlet flow passage;   a flow guide frame disposed between the first and second plate-shaped members; and   one or more flow guide plates internally extending from the flow guide frame configured for directing fluid to the first and second outlet flow passages.   
     
     
         15 . The fluid distributor according to  claim 14 , wherein the one or more flow guide plates are further configured to direct fluid flowing in from the inlet flow passage to flow out from the first outlet flow passage through a first flow guide space, and guide the other part of the fluid flowing in from the inlet flow passage to flow out from the second outlet flow passage through a second flow guide space. 
     
     
         16 . The fluid distributor according to  claim 14 , wherein the flow guide frame further comprises a flow equalizing plate having a bottom portion configured to distribute the fluid flowing in from the inlet flow passage to a first flow guide space and a second flow guide space, respectively. 
     
     
         17 . The fluid distributor according to  claim 14 , wherein the one or more flow guide plates comprise a plurality of slats configured for directing fluid. 
     
     
         18 . The fluid distributor according to  claim 17 , wherein the plurality of slats are angled relative to each other.