Fast Milk Cooling System – Ice Water Chiller for Dairy Processing

37 ℃ milk from the milking machine, through ice water Fast cooling system instantly reach 4 ℃, and then enter the milk storage tank or directly into the road milk truck for dairy factory.

Features and advantages of ice water systems

1.Milk cooling medium is pure ice water, no harm for milk.
2.Ice water evaporator adopts the international rain curtain plate heat exchanger technology.high efficiency, energy saving and environmental protection, and long life, less working equipment. 
3.The whole system is the central integrated control and field control, system operation reliable. 
4.CIP cleaning cleaning method using partitions, pneumatic valve and the tube plate for joint operation, cleaning does not stay dead, safe and reliable operation, avoid cleaning water mixed with milk, resulting in unnecessary losses. Milk cooling circuit while simultaneously cleaning and milking machines, saving cleaning fluid and cleaning time. CIP cleaning process control are used. 
5.Warm water tank (50 ℃) using partition type, an area for the heat recovery cycle heating zones (water temperature does not reach 50 ℃), another district is 50 ℃ constant temperature water area. In outward water when heated zone does not frequent water leaving the water temperature is low, in order to ensure a constant temperature. Cleaning temperature can effectively protect, clean better.
6.Hot water tank (80 ℃) using electric heating thermal oil, hot water heating indirectly to effectively prevent fouling and frequent electric heating pipe burn. Simultaneously with the warm water tank, as also used partition type, a district heating, an area of heated water area. Cleaning temperature can effectively protect, clean better. 
7.Refrigeration system using screw chillers, heat recovery with automatic energy regulation, energy saving and environmental protection. Automatic temperature control. The V-shaped air-cooled condenser, the system pressure control fan start and stop. Less equipment, control and reliable, easy to maintain. 
8.Milk positions and temperature display, milk level analog display and control, cleaning water level control, sampling valves, respiratory rain hat, stirring, full-cleaning nozzles and other devices, the overall high-pressure high-density polyurethane foam, so that milk positions reached visualization, intelligent and efficient operation.
9.Out of milk and milk positions operate pneumatic valve pipe and tube plate for operation, safe and reliable.

Ice water system design proposal

[Design proposal guidelines] 
1. The strict implementation of dairy processing and refrigeration engineering provisions to ensure that raw milk cooling refrigeration process safety, scientific, rational; 
2.In line with advanced technology, reliable operation, simple operation and management principles select cooling process, so that flexibility, advanced and reliable organically combined; 
3.Using currently mature domestic advanced technology and equipment, try to reduce the project investment and operating costs; 
4. Layout and engineering design, combined with the status quo, and strive compact layout, simple, reasonable process smooth, save floor.

[Design proposal]
1.General description of the project proposal indirect rapid cooling using ice water to cool the milk way. Milk from the milk from the milking machine into the buffer tank pump, buffer tank equipped with level control, associated with the inverter control play milk pump operation. Buffer tank milk from the milk pump into the heat exchanger for cooling. Plate heat exchanger is divided into two, the first stage cooled by groundwater from 37℃ to 25℃, the second stage use 2℃ice water cooling milk from 25℃ to 4℃, the milk pipe into the outdoor vertical storage tank and then by a milk pump transfer into road milk tanker transported to the dairy plant for further processing.
2. The supply of cooling water. plate heat exchanger with the first paragraph of groundwater, water supply pipe network from cattle, milk and then back to finish cooling water supply pipe network. Second plate heat exchanger with ice, the temperature is 1-2℃, supplied by the chiller. Chiller equipped with a refrigeration room sets. Ice ice from the ice tank pump pumped through plate heat exchangers, heat exchange with the milk and then back to the ice full tank. After warming up the ice from the ice refrigeration unit temperature drops to 2℃.
3. The refrigeration system in the refrigeration cycle, using multiple Taiwan Han Zhong semi-hermetic screw compressor chillers, automatic energy adjustment, automatic temperature control. Condenser air-cooled condenser, less equipment, reliable operation. Using Freon refrigerant R22. Electrical control microcomputer central control and local control and use.
4. Hot water system, cooling system, heat recovery system configuration, refrigeration systems for recovering heat output 50℃ warm water, stored in a warm water tank, can be used to store pipe cleaning milking machines and milk 80℃ hot water tank hot water, hot water can greatly reduce the cost. 
50℃ warm water tank using two-zone, an area for the heat recovery cycle heating zones (water temperature does not reach 50℃), another district is 50℃ warm area for electrically heated hot water tank water and other point of use water. In outward water when heated zone does not frequent water leaving the water temperature is low, in order to ensure a constant temperature. 
80℃ hot water tank uses the same two-zone, an area of electric heating heating zones (water temperature does not reach 80℃), another district is 80℃ hot area for milking machines and milk for piping and equipment supply . In outward water supply, hot water leaving the water district does not frequently low in order to ensure a constant temperature. Electric heating tube does not directly heat the water, but the first heat conducting oil, thermal oil heating hot water again, to avoid electric heating tube fouling due to frequent burn.
5. Milk positions into the milk system milking machine work, milk into the milk for the automatic control positions, the normal into the milk. After squeezing the milk after milking machines, milk positions need to manually operate the top of water, so that the line of the milk into the milk into the milk all positions. Milk into the milk pipe positions with check valve, Top End water after the pipe into the milk does not exist milk.