摘要:
A fluid-agitating tank assembly (1) comprising a tank (10), filled in use with a fluid, in particular a fluid with particles, and agitator means (11), housed in the tank (10) so as to be immersed in use at least partly in the fluid and supported by the tank (10) in a rotatable manner about an axis (D); the agitator means (11) comprise: - a double helix (26) housed in an upper volume (27) of the tank (10) and acting in use on the fluid to transform unidirectional rotation of the agitator means (11) about the axis (D) into a bidirectional movement of the fluid in the tank (10) towards bottom and top portions (13, 14) of the tank (10), and - at least one rotary blade (28, 28') projecting transversally from the axis (D), housed in a bottom volume (29) of the tank (10) and rotating in use about the axis (D) to move the fluid towards at least one lateral outlet (25) of the tank (10); the tank assembly (1) further comprises at least one fixed blade (30) housed in the tank (10) and adapted to at least in part decouple from one another the fluid motions in the top and bottom volumes (27, 29) of the tank (10).
摘要:
A valve (1) has a magnetic actuator (25), which is provided with a sleeve (18) extending along an axis (12), with a movable core (27) made of ferromagnetic material and axially guided by the inner surface of the sleeve (18), and with a magnetic stator (26) arranged in fixed position around the sleeve (18); the stator (26) has a housing (35) made of ferromagnetic material, a coil (36) facing the external surface of the sleeve (18), and two magnets (37,38), which are aligned with the coil (36), are arranged on opposite axial sides of the coil (36) and have a same pole aimed against each other; the valve (1) has a conduit (9) with a valve seat (48) axially facing a plug member (49), which is coaxial and fixed with respect to an end portion (44) of the core (27), so as to open/close the valve seat (48); the core (27) has at least one passage (45) allowing a fluid to flow through the core (27) and comprises two end portions (43,44) of larger diameter.
摘要:
A fluid-agitating tank assembly (1) comprising: a tank (10) filled in use with a fluid, in particular a fluid with particles, and having a top portion (13) and a bottom portion (14); and an agitator (11) housed in the tank (10) so as to be immersed in use in the fluid and supported by the tank (10) in a rotatable manner about an axis (D); the agitator (11) comprises moving means (25) acting in use on the fluid for converting unidirectional rotation of the agitator (11) about the axis (D) into bi-directional movement of the fluid in the tank (10) towards the top and bottom portions (13, 14).
摘要:
A filling machine (1) comprising: a product tank (15) containing a pourable product and a gas maintained at a first pressure value (P 1 ); one dosing tank (25) filled with gas and adapted to measure out a given volume (V) of pourable product to be fed to one container (2) through a first valve (26); a fluidic line (27) connecting the dosing tank (25) to the product tank (15) through a second valve (28); first pressurizing means (40) to selectively pressurize the gas in the dosing tank (25) at a second pressure value (P 2 ), lower than the first pressure value (P 1 ), in a condition in which the first and second valve (26, 28) are both closed and the dosing tank (25) is product-free; sensor means (34) to detect pressure of the gas in the dosing tank (25); and control means (22) configured: to open the second valve (28) after the dosing tank (25) has been pressurized at the second pressure value (P2), in order to allow the pourable product to flow from the product tank (15) to the dosing tank (25) under the action of the pressure difference therebetween; and to close the second valve (28) as the gas pressure detected by the sensor means (34) in the dosing tank (25), during flow of the pourable product into the dosing tank (25) itself, reaches a third pressure value (P4) correlated with the given volume (V) of pourable product flowed in the dosing tank (25).
摘要:
A filling machine (1) comprising: a product tank (15) containing a pourable product and a gas maintained at a first pressure value (P 1 ); one dosing tank (25) filled with gas and adapted to measure out a given volume (V) of pourable product to be fed to one container (2) through a first valve (26); a fluidic line (27) connecting the dosing tank (25) to the product tank (15) through a second valve (28); first pressurizing means (40) to selectively pressurize the gas in the dosing tank (25) at a second pressure value (P 2 ), lower than the first pressure value (P 1 ), in a condition in which the first and second valve (26, 28) are both closed and the dosing tank (25) is product-free; sensor means (34) to detect pressure of the gas in the dosing tank (25); and control means (22) configured: to open the second valve (28) after the dosing tank (25) has been pressurized at the second pressure value (P2), in order to allow the pourable product to flow from the product tank (15) to the dosing tank (25) under the action of the pressure difference therebetween; and to close the second valve (28) as the gas pressure detected by the sensor means (34) in the dosing tank (25), during flow of the pourable product into the dosing tank (25) itself, reaches a third pressure value (P4) correlated with the given volume (V) of pourable product flowed in the dosing tank (25).
摘要:
A fluid-agitating tank assembly (1) comprising a tank (10), filled in use with a fluid, in particular a fluid with particles, and agitator means (11), housed in the tank (10) so as to be immersed in use at least partly in the fluid and supported by the tank (10) in a rotatable manner about an axis (D); the agitator means (11) comprise: - a double helix (26) housed in an upper volume (27) of the tank (10) and acting in use on the fluid to transform unidirectional rotation of the agitator means (11) about the axis (D) into a bidirectional movement of the fluid in the tank (10) towards bottom and top portions (13, 14) of the tank (10), and - at least one rotary blade (28, 28') projecting transversally from the axis (D), housed in a bottom volume (29) of the tank (10) and rotating in use about the axis (D) to move the fluid towards at least one lateral outlet (25) of the tank (10); the tank assembly (1) further comprises at least one fixed blade (30) housed in the tank (10) and adapted to at least in part decouple from one another the fluid motions in the top and bottom volumes (27, 29) of the tank (10).