Water Sprinkle Pipe for Downflow Type Ice Making Machine

Abstract

There is provided a water sprinkle pipe for a downflow type ice making machine that regulates a flow of ice making water to suppress generation of turbulence and can uniformly supply the ice making water from water sprinkle holes. A water sprinkle pipe ( 22 ) comprises: a pipe body ( 24 ) that is arranged to extend above an ice making section, has a flow region ( 38 ) for the ice making water defined therein, and has one end communicating with a discharge opening of a circulation pump ( 30 ); and a plurality of water sprinkle holes ( 26 ) provided in a lower surface of the pipe body ( 24 ) in an extending direction. A regulation portion ( 40 ) protruding from an inner surface of the pipe body ( 24 ) to the flow region ( 38 ) side to locally narrow the flow region ( 38 ) is provided on an upper surface of the pipe body ( 24 ) on an upstream side of the upstream-most water sprinkle holes ( 26 ). Further, a semicircular regulation portion ( 42 ) is formed on a downstream side of the regulation portion ( 40 ) in the pipe body ( 24 ).

1 . A water sprinkle pipe for a downflow type ice making machine, comprising:
 a pipe body ( 24 ,  54 ,  62 ,  72 ,  86 ) that is arranged to extend above an ice making section ( 14 ) and communicates with a discharge opening of a pump ( 30 ) and through which ice making water discharged from the discharge opening of the pump ( 30 ) flows; and a plurality of water spray holes ( 26 ) provided on a lower surface of the pipe body ( 24 ,  54 ,  62 ,  72 ,  86 ) and placed to be apart from each other in an extending direction of the pipe body ( 24 ,  54 ,  62 ,  72 ,  86 ), the water sprinkle pipe being configured to supply the ice making water sucked by the pump ( 30 ) and flowing through the pipe body ( 24 ,  54 ,  62 ,  72 ,  86 ) to the ice making section ( 14 ) through the water spray holes ( 26 ),   wherein a regulation portion ( 40 ) that protrudes from an inner surface of the pipe body ( 24 ,  54 ,  62 ,  72 ,  86 ) to locally narrow a flow region ( 38 ) for the ice making water is provided on the upstream side of the upstream-most water spray hole ( 26 ) in the pipe body ( 24 ,  54 ,  62 ,  72 ,  86 ).   
     
     
         2 . The water sprinkle pipe for a downflow type ice making machine according to  claim 1 , wherein one or more second regulation portions ( 42 ,  52 ,  64 ,  74 ) that protrude from the inner surface of the pipe body ( 24 ,  54 ,  62 ,  74 ) to locally narrow the flow region ( 38 ) for the ice making water are provided on the downstream side of the regulation portion ( 40 ) in the pipe body ( 24 ,  54 ,  64 ,  72 ). 
     
     
         3 . The water sprinkle pipe for a downflow type ice making machine according to  claim 2 , wherein the second regulation portion ( 42 ) is provided to be placed above the water spray holes ( 26 ) and formed into a semicircular shape bending from the upstream side toward the downstream side. 
     
     
         4 . The water sprinkle pipe for a downflow type ice making machine according to  claim 2 , wherein the second regulation portion ( 52 ) is provided to be placed above the water spray holes ( 26 ) and formed into a bent shape in such a manner that its surface on the upstream side inclines toward the corresponding water spray hole ( 26 ) and its surface on the downstream side inclines toward an upper surface of the pipe body ( 54 ) from the surface on the upstream side at a more gentle inclination angle. 
     
     
         5 . The water sprinkle pipe for a downflow type ice making machine according to  claim 2 , wherein the second regulation portion is a pair of side regulation portions ( 64 ,  64 ) that are provided to be placed between the regulation portion ( 40 ) and the water spray hole ( 26 ) adjacent thereto or between the water spray holes ( 26 ,  26 ) adjacent to each other and protrude from a side surface of the pipe body ( 62 ) to face each other. 
     
     
         6 . The water sprinkle pipe for a downflow type ice making machine according to  claim 2 , wherein the second regulation portion is a conical regulation portion ( 74 ) that is provided to be placed above the water spray holes ( 26 ) and hung from an upper portion of the inner surface of the pipe body ( 72 ) toward the corresponding water spray hole ( 26 ). 
     
     
         7 . The water sprinkle pipe for a downflow type ice making machine according to  claim 1 , wherein the regulation portion ( 40 ) comprises a plurality of guide protruding portions ( 82 ,  82 ) that are provided on the upper surface of the pipe body ( 86 ) to be apart from each other in a direction orthogonal to the extending direction of the pipe body ( 86 ) and extend in the extending direction of the pipe body ( 86 ) while downwardly protruding from the inner surface of the pipe body ( 86 ). 
     
     
         8 . A water sprinkle pipe for a downflow type ice making machine, comprising: a pipe body ( 92 ) that is arranged to extend above an ice making section ( 14 ) and communicates with a discharge opening of a pump ( 30 ) and through which ice making water discharged from the discharge opening of the pump ( 30 ) flows; and a plurality of water spray holes ( 26 ) provided on a lower surface of the pipe body ( 92 ) and placed to be apart from each other in an extending direction of the pipe body ( 92 ), the water sprinkle pipe being configured to supply the ice making water sucked by the pump ( 30 ) and flowing through the pipe body ( 92 ) to the ice making section ( 14 ) through the water spray holes ( 26 ),
 wherein a reduced-pressure straightening portion ( 94 ) comprising a semicircular reduced-pressure space ( 96 ) that protrudes upwards from an inner surface of the pipe body ( 92 ) to locally expand a flow region ( 38 ) for the ice making water is provided on the upstream side of the upstream-most water spray hole ( 26 ) in the pipe body ( 92 ).