초록 ▼

The object of the present invention relates to a venting device, which can be connected to a tank containing air and water. The device comprises a first venting path for the air and first intercepting means, set along this, which are suitable for closing the first path. The device also comprises a s

The object of the present invention relates to a venting device, which can be connected to a tank containing air and water. The device comprises a first venting path for the air and first intercepting means, set along this, which are suitable for closing the first path. The device also comprises a second venting path for the water and second intercepting means, set along this, which are suitable for opening the second passage to deliver the water. The first intercepting means can be influenced by the water to go from the open configuration to the closed configuration, so that when the air has been vented out, the water reaches a set greater pressure limit, opens the second intercepting means and can be delivered outside.

대표청구항 ▼

What is claimed is: 1. A venting device that can be connected to a tank, wherein the tank exhibits an internal chamber containing a first fluid and a second fluid, wherein the device comprises: a first venting path suitable for joining the internal chamber of the tank to the outside; first intercep

What is claimed is: 1. A venting device that can be connected to a tank, wherein the tank exhibits an internal chamber containing a first fluid and a second fluid, wherein the device comprises: a first venting path suitable for joining the internal chamber of the tank to the outside; first intercepting means, set along the first venting path, which are suitable for going from an open configuration, wherein said first intercepting means allow the first fluid to pass from the chamber inside the tank to the outside, to a closed configuration, wherein said first intercepting means close the first path, a second venting path, which is suitable for joining the internal chamber of the tank to the outside; second intercepting means, set along the second venting path, which are suitable for going from a closed configuration, wherein said second intercepting means close the second passage, to an open configuration, wherein said second intercepting means allow the second fluid to pass from the chamber inside the tank to the outside, the device being characterised in that the first intercepting means can be influenced by the second fluid to go from the open configuration to the closed configuration. 2. Device according to claim 1, wherein the first intercepting means are sensitive to the density of a fluid, going from the open configuration to the closed configuration, when influenced by an agent with a set density. 3. Device according to claim 2, wherein the first intercepting means comprise a moving shutter suitable for floating when immersed in the second fluid. 4. Device according to claim 3, wherein the shutter is a ball. 5. Device according to claim 3, wherein the shutter is made in elastomeric material. 6. Device according to claim 1, wherein the second intercepting means are sensitive to the pressure of a fluid, going from the closed configuration to the open configuration when influenced by a agent at a set greater pressure limit. 7. Device according to claim 6, wherein the second intercepting means comprise a piston, which closes the second venting path in the closed configuration of the second intercepting means. 8. Device according to claim 7, wherein the piston is hollow inside and houses the first intercepting means inside. 9. Device according to claim 8, wherein the piston slides inside a central space of a body, and wherein the device comprises sealing means that are suitable for making a seal between the piston and the body, in the open configuration of the second intercepting means. 10. Device according to claim 9, wherein the sealing means comprise a seal ring, in the closed configuration of the second intercepting means, the seal ring being set in the central space of the body. 11. Device according to claim 7, wherein the device comprises guiding means for the piston, which are suitable for guiding the piston between the closed configuration and the open configuration of the second intercepting means. 12. Device according to claim 1, wherein the device comprises non-return valve means, which are suitable for preventing the fluids from flowing back from the device to the chamber of the tank. 13. Device according to claim 12, wherein the first venting path and the second venting path exhibit a common part, and wherein the non-return valve means are set in the common part. 14. Device according to claim 12, wherein the non-return valve means comprise a ball made in elastomer. 15. Device according to claim 1, wherein the first venting passage exhibits a first outlet opening to let the first fluid out and the second venting passage exhibits a second outlet opening to let the second fluid out, the first outlet and the second outlet being different from each other. 16. Device according to claim 15, wherein, after connecting the device to the tank, the first outlet is set at a height that is greater than the height at which the second outlet is set. 17. Device according claim 16, also comprising locking means, which are suitable for acting with the second intercepting means to hold them in the open configuration. 18. Device according to claim 17, wherein the locking means comprise a seal ring. 19. Device according to claim 17, wherein the locking means comprise a handle that is connected to the second intercepting means to bring them manually into the open configuration. 20. Device according to claim 1, comprising a body with a central space and a piston, sliding in the body, the first venting passage comprising at least one part of a cavity inside the piston. 21. Device according to claim 20, wherein the second venting passage comprises the central space of the body and at least one delivery tube made in the body, which is joined to the outside. 22. Apparatus comprising a closed tank, with an internal chamber, suitable to contain a first fluid and a second fluid, and a venting device connected to the tank, comprising a) a first venting path suitable for joining the internal chamber of the tank to the outside; b) first intercepting means, set along the first venting path, which are suitable for going from an open configuration, wherein said first intercepting means allow the first fluid to pass from the chamber inside the tank to the outside, to a closed configuration, wherein said first intercepting means close the first path, c) a second venting path, which is suitable for joining the internal chamber of the tank to the outside; d) second intercepting means, set along the second venting path, which are suitable for going from a closed configuration, wherein said second intercepting means close the second passage, to an open configuration, wherein said second intercepting means allow the second fluid to pass from the chamber inside the tank to the outside, wherein the first intercepting means can be influenced by the second fluid to go from the open configuration to the closed configuration and wherein the venting device is connected mechanically movably to the tank, the venting paths being fluidically joined to the chamber of the tank. 23. Apparatus according to claim 22, wherein the tank is suitable for heating. 24. A venting device that can be connected to a tank, wherein the tank exhibits an internal chamber containing a first fluid and a second fluid, wherein the device comprises: a first venting path, which is suitable for joining the internal chamber of the tank to the outside; first intercepting means, set along the first venting path, which are suitable for going from an open configuration, wherein said first intercepting means allow the first fluid to go from the chamber inside the tank to the outside, to a closed configuration, wherein said first intercepting means close the first path, a second venting path, which is suitable for joining the internal chamber of the tank to the outside; second intercepting means, set along the second venting path, which are suitable for going from a closed configuration, wherein said second intercepting means close the second passage, to an open configuration, wherein said second intercepting means allow the second fluid to go from the internal chamber of the tank to the outside, wherein the first venting path for the first fluid is at least partially separate from the second venting path for the second fluid.