A concentration method and equipment. The concentration method includes the step of performing reverse osmosis concentration processing on raw milk by using a reverse osmosis membrane. The reverse osmosis concentration processing includes low-pressure reverse osmosis membrane concentration processing and high-pressure reverse osmosis membrane concentration processing, wherein in the low-pressure reverse osmosis membrane concentration processing, reverse osmosis concentration processing is performed on feeding materials by using a first predetermined pressure, and in the high-pressure reverse osmosis membrane concentration processing, the reverse osmosis concentration processing is performed on the feeding materials by using a second predetermined pressure, the first predetermined pressure being lower than the second predetermined pressure. The concentration equipment includes a temporary storage unit, a homogenizing unit, and a particular concentration unit.

A concentration method and equipment. The concentration method includes the step of performing reverse osmosis concentration processing on raw milk by using a reverse osmosis membrane. The reverse osmosis concentration processing includes low-pressure reverse osmosis membrane concentration processing and high-pressure reverse osmosis membrane concentration processing, wherein in the low-pressure reverse osmosis membrane concentration processing, reverse osmosis concentration processing is performed on feeding materials by using a first predetermined pressure, and in the high-pressure reverse osmosis membrane concentration processing, the reverse osmosis concentration processing is performed on the feeding materials by using a second predetermined pressure, the first predetermined pressure being lower than the second predetermined pressure. The concentration equipment includes a temporary storage unit, a homogenizing unit, and a particular concentration unit.

The method of the invention is characterized in that in the first phase the device installation is filled with processed liquid product, yielding a low pressure zone and then the processed liquid product is introduced under high pressure into the cavitation process, where moving at a rate of not less than 3 m/s and under pressure of not less than 20 bar is introduced to the cavitation and rotation location of the separated streams of the processed liquid product, which rotating in the further part, in the longitudinal axis of the cavitator, move in the opposite directions, resulting in differential pressure leading to cavitation process with effects characteristic for sterilization and homogenization with heterogeneous parameters, wherein in the next phase a separation takes place into a liquid product, which has a particle size larger than 600 nm and a liquid product which has a particle size smaller than 600 nm, wherein the liquid product of larger particle size is directed to cooling and complementary cavitation reprocessing, and the liquid product of smaller particle size is subjected to particle size analysis control, by which the liquid product, which meets the preset parameters, is directed to the finished product acceptance, and the liquid product which does not meet the acceptance criteria is sent to the next reprocessing. The device of the invention is characterized in that it comprises a low pressure pump (2), which is used to fill the device installation with processed liquid product, wherein in a subsequent operation the particle size analyzer (7) switches the high pressure pump (1) on, introducing at a pressure not less than 20 bar the processed liquid product into the cavitator (3), where the cavitation process takes place, the resulting liquid product having a heterogeneous structure is introduced into the separator centrifuge (4), in which takes place, depending on parameters, the separation of the flow into the heat exchanger (5) and the cavitation reprocessing, and the flow through the valve (6) to the particle size analyzer (7), which directs the liquid product to the reception point.

Method for detecting leakages of a service fluid (P3) housed within two membranes (6, 16) that separate a hydraulic section containing a hydraulic fluid (P2) from a working section containing a fluid product (P1) to homogenise in a double membrane pump (1), the method comprising the steps of: detecting a physical magnitude (S) representing a property of the fluid contained within the membranes (6, 16); and establishing if the physical magnitude (S) detected is associated with a first condition that is indicative of the mixing of the service fluid (P3) with said fluid product (P1), or if it is associated with a second condition that is indicative of the mixing of the service fluid (P3) with the hydraulic fluid (P2), or if it is associated with a third condition that is indicative of the mixing of the service fluid (P3) both with the fluid product (P1) and the hydraulic fluid (P2).

Method for detecting leakages of a service fluid (P3) housed within two membranes (6, 16) that separate a hydraulic section containing a hydraulic fluid (P2) from a working section containing a fluid product (P1) to homogenise in a double membrane pump (1), the method comprising the steps of: detecting a physical magnitude (S) representing a property of the fluid contained within the membranes (6, 16); and establishing if the physical magnitude (S) detected is associated with a first condition that is indicative of the mixing of the service fluid (P3) with said fluid product (P1), or if it is associated with a second condition that is indicative of the mixing of the service fluid (P3) with the hydraulic fluid (P2), or if it is associated with a third condition that is indicative of the mixing of the service fluid (P3) both with the fluid product (P1) and the hydraulic fluid (P2).

A device and a method are for sterilization of milk from livestock such as cows, sheep or goats. The milk, prior to an irradiation with UV-C light through a light translucent barrier, is homogenized since the milk is exposed to ultrasound. The milk simultaneously to or after the homogenization is exposed to an electrical field, such as a field with changing polarity, where polarity change and field strength are chosen such that the milk in the electrical field is heated due to the milk's resistance.

A device and a method are for sterilization of milk from livestock such as cows, sheep or goats. The milk, prior to an irradiation with UV-C light through a light translucent barrier, is homogenized since the milk is exposed to ultrasound. The milk simultaneously to or after the homogenization is exposed to an electrical field, such as a field with changing polarity, where polarity change and field strength are chosen such that the milk in the electrical field is heated due to the milk's resistance.

The present invention relates to an improved liquid pump (1) comprising at least one rotating pumping member (2, 3) and a drive shaft (4) rigidly constrained to said at least one rotating pumping member (2) and configured to drive said at least one rotating pumping member (2) into rotation, said at least one rotating pumping member (2, 3) being completely housed in a pumping chamber (6) formed within a pump casing (7), said drive shaft (4) being partially housed within said pump casing (7), between said drive shaft (4) and said pump casing (7) there being provided at least one liquid-tight seal (8) for preventing leakage of said liquid along said drive shaft (4), said pump (1) comprising a suction duct (9) in liquid communication with said pumping chamber (6) and a delivery duct (11) in liquid communication with said pumping chamber (6).

According to the invention, inside said pump casing (7) a flushing chamber (13) is formed in liquid communication with said suction duct (9) or with said delivery duct (11), said drive shaft (4) passing through said flushing chamber (13), said at least one seal (8) having at least one portion (80) facing said flushing chamber (13) so that the flow of said liquid running inside said flushing chamber (13) laps said portion (80) of said seal (8).

The present invention relates to an improved liquid pump (1) comprising at least one rotating pumping member (2, 3) and a drive shaft (4) rigidly constrained to said at least one rotating pumping member (2) and configured to drive said at least one rotating pumping member (2) into rotation, said at least one rotating pumping member (2, 3) being completely housed in a pumping chamber (6) formed within a pump casing (7), said drive shaft (4) being partially housed within said pump casing (7), between said drive shaft (4) and said pump casing (7) there being provided at least one liquid-tight seal (8) for preventing leakage of said liquid along said drive shaft (4), said pump (1) comprising a suction duct (9) in liquid communication with said pumping chamber (6) and a delivery duct (11) in liquid communication with said pumping chamber (6).

According to the invention, inside said pump casing (7) a flushing chamber (13) is formed in liquid communication with said suction duct (9) or with said delivery duct (11), said drive shaft (4) passing through said flushing chamber (13), said at least one seal (8) having at least one portion (80) facing said flushing chamber (13) so that the flow of said liquid running inside said flushing chamber (13) laps said portion (80) of said seal (8).

A measuring apparatus for inline measuring the homogenizing degree of a fluid product in a dispersing unit, the measuring apparatus comprising: a tubular device arrangeable at an output of the dispersing unit, the tubular device having an internal cavity for the passage of the fluid product received from the dispersing unit; a plurality of ultrasound sensors mounted on the tubular device, wherein the internal cavity has a variable diameter across the length of the tubular device, the internal cavity having at least one first tract with a tapering development from an inlet of the tubular device towards an outlet of the tubular device.