A fluid conveyor jet moves flexible containers or bags along a trough from one station to the next in the trough in a process which efficiently heats or cools the contents of the containers. Side fluid jets positioned along opposite sides of the trough direct heating or cooling fluid (water) on the flexible containers at the stations. They direct the fluid generally in spaced horizontal planes on the flexible containers therebetween causing (1) the central contents of the containers to move away from central areas of the container towards the sides to promote temperature transfer between the contents and cooling or heating fluid from the fluid jet conveyor and the fluid jets and (2) the containers to rotate generally about axes parallel to a longitudinal axis of the trough also helping in the cooling or heating process. The side fluid jets are operatively positioned below the waterline of the trough. The fluid conveyor jet and the side fluid jets act alternately whereby the fluid conveyor jet moves the flexible containers from one active station to the next, and at each active station the side fluid jets are activated to massage the central contents towards the skin of the containers and to rotate the containers in the cooling or heating fluid in the trough.
System And Method For Heating And Then Cooling Contents Of Flexible Containers
A fluid conveyor jet moves flexible containers or bags along a trough from one station to the next in the trough in a process which efficiently heats or cools the contents of the containers. Side fluid jets positioned along opposite sides of the trough direct heating or cooling fluid (water) on the flexible containers at the stations. They direct the fluid generally in spaced horizontal planes on the flexible containers therebetween causing (1) the central contents of the containers to move away from central areas of the container towards the sides to promote temperature transfer between the contents and cooling or heating fluid from the fluid jet conveyor and the fluid jets and (2) the containers to rotate generally about axes parallel to a longitudinal axis of the trough also helping in the cooling or heating process. The side fluid jets are operatively positioned below the waterline of the trough. The fluid conveyor jet and the side fluid jets act alternately whereby the fluid conveyor jet moves the flexible containers from one active station to the next, and at each active station the side fluid jets are activated to massage the central contents towards the skin of the containers and to rotate the containers in the cooling or heating fluid in the trough.
A nozzle assembly including a nozzle unit, first and second sleeves and a clamp. The nozzle unit has an aft collar and a tapered inner fluid contact surface, tapering to gradually increase the velocity of fluid passing therethrough. The inner surface is formed of an elastomer material that deforms by eddies in the fluid and thereby does not build turbulent flow. The clamp encircles a rearward fitting of the first sleeve and a forward fitting of the second sleeve, holding them together with the collar sandwiched therebetween.
Bleed Tube For Centrifugal Pump And Method For Retrofitting Same
An air bleed tube is attached to a single-stage centrifugal pump, which has an impeller and a liquid suction tube whose inlet is at a center of the impeller. The air bleed tube is attached with its air inlet at an exposed eye of the impeller to bleed air from the pump and thereby reduce the likelihood that the pump will lose its prime. A light-touch check valve at an air outlet of the air bleed tube allows air at the impeller eye to be discharged from the pump and at the same time prevents air from being sucked by venturi vacuum pressure in the pump back into the air bleed tube and the pump.
A trough construction including a trough along which water is propelled to convey bagged product therealong. A plurality of nozzles jet-spray cooling or heating water onto the product as it is conveyed along the trough. The nozzles are oriented in opposing first and second series so as to impart a rotation on the bagged product generally about a longitudinal axis of the trough. According to one embodiment, a first suction tube having openings through the trough wall is opposite to the first series of nozzles and with a first pump forms a first fluid circuit. Similarly, a second suction tube with suction openings, together with a second pump and the second series form a second fluid circuit. The two fluid circuits keep the bags centered in the trough, surrounded by cooling or heating water. According to a second embodiment, the trough is positioned in a sump and has trough openings so that the water in the trough communicates with that in the sump, and the suction tubes are not used.