A test pressurization device (100) for hose (1) includes a first pair of press/driving rolls (10, 12) between which the hose can be inserted, and a second pair of press/driving rolls (20, 22) between which the hose can be inserted. The first pair of press/driving rolls (10, 12) is arranged on a dist
A test pressurization device (100) for hose (1) includes a first pair of press/driving rolls (10, 12) between which the hose can be inserted, and a second pair of press/driving rolls (20, 22) between which the hose can be inserted. The first pair of press/driving rolls (10, 12) is arranged on a distance from the second pair of press/driving rolls (20, 22). Further each pair of press/driving rolls is arranged for pressing the hose together between the rolls in conjunction with pressurization with a medium such as water so that a limited part of the hose, which is located between the first and the second pair of press/driving rolls, can be held pressurized and control of the hoses or its couplings tightness is admitted. Furthermore, while sections of the hose are held pressurized between the pairs of press/driving rolls, the same pairs of press/driving rolls are feeding the hose forward, thus checking the hoses tightness in a continuously moving section approach. In this way a very space efficient solution is achieved, as only a limited part of the hose needs to be held pressurized at a time.
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1. A test pressurisation device adapted for reception of hose, the test pressurisation device comprising: a first pair of press rolls between which the hose can be inserted, anda second pair of press rolls between which the hose can be inserted,wherein the first pair of press rolls is arranged at a
1. A test pressurisation device adapted for reception of hose, the test pressurisation device comprising: a first pair of press rolls between which the hose can be inserted, anda second pair of press rolls between which the hose can be inserted,wherein the first pair of press rolls is arranged at a distance from the second pair of press rolls, andeach pair of press rolls is arranged for pressing the hose together between the rolls in conjunction with pressurisation of the hose so that a limited part of the hose located between the first and the second pair of press rolls can be held pressurised,wherein the test pressurisation device further comprises:a motorised mechanism arranged to feed the hose through the pairs of press rolls in conjunction with pressurisation of the hose to allow different parts of the hose between the first and the second pair of press rolls to be successively held under pressure,wherein at least one of the pairs of press rolls is configured to operate as driving rolls for feeding of the hose at a suitable speed while adjusting and/or maintaining a prescribed test pressure of the limited part of the hose currently located between the first pair of press rolls and the second pair of press rolls,wherein the pair of press rolls is motorised and mounted on a sled where one or both of the pair of press/driving rolls is arranged to controllably drive the hose forward or not, andwherein the other pair of press rolls is motorised and mounted in a fixed position, where one or both of the other pair of press rolls is arranged to drive the hose forward at a constant or variable speed. 2. A test pressurisation device according to claim 1, wherein protective cut-off areas are arranged to confine the space between and around the first and the second pair of press rolls where the limited part of the hose is located pressurisation. 3. A test pressurisation device according to claim 2, wherein the protective cut-off areas form an encapsulated system. 4. A test pressurisation device according to claim 1, wherein one of the pairs of press rolls is arranged to, when inserting a medium into the hose, press the hose together while the other pair of press rolls, which is closest to the end where the medium is inserted, is arranged to, in that position, not press the hose together to permit filling and testing of a hose coupling, wherein the other pair of press rolls is arranged to, when the inserting is finished, also press the hose together to maintain pressurisation of the limited part of the hose that is located between the first and the second pair of press rolls. 5. A test pressurisation device according to claim 1, wherein the motorised press rolls are controlled by one or two Single-Input-Single-Output (SISO) or Multiple-Input-Multiple-Output (MIMO) regulators configured to allow adjustment and/or maintaining of the prescribed test pressure. 6. A test pressurisation device according to claim 1, wherein the driving motors of the motorised press rolls are controlled by Single-Input-Single-Output (SISO) or Multiple-Input-Multiple-Output (MIMO) controllers, which are configured to operate based on measurements of the distance between the two pair of press rolls, or the torque of either of the two pair of press/driving rolls, or the current or voltage of the driving motors of the press rolls to compensate for any deviation from the prescribed pressure. 7. A test pressurisation device according to claim 1, wherein the test pressurisation device includes a mechanism for detection of holes and/or other damages on the part of the hose that is currently pressurised. 8. A test pressurisation device according to claim 7, wherein the detection mechanism is arranged for automatic detection of holes and/or other damages based on visual indications, and/or detection of vibrations, pressure changes, sound changes, and/or change in motor properties of the driving motors of the press rolls. 9. A test pressurisation device according to claim 1, wherein the test pressurisation device includes a mechanism for marking of holes and/or other damages on the hose. 10. A test pressurisation device according to claim 9, wherein the protective cut-off areas are arranged to delimit the space between and around the first and the second pair of press rolls where the limited part of the hose is located at pressurisation, and the marking mechanism is arranged inside of the protective cut-off areas. 11. A test pressurisation device according to claim 9, wherein the protective cut-off areas are arranged to delimit the space between and around the first and the second pair of press rolls where the limited part of the hose is located at pressurisation, and the marking mechanism is arranged outside of the protective cut-off areas. 12. A test pressurisation device according to claim 11, wherein the test pressurisation device includes: a mechanism for detection, in conjunction with feeding of a new part of the hose between the first and the second pair of press rolls, of holes and/or other damage to the hose or couplings associated with the hose based on a change in hose pressure,where the marking mechanism which is placed in a given position outside of the protective cut-off areas is arranged for marking of the hose after a time period of feeding of hose calculated from a feeding speed and a distance from the first pair of press rolls and the marking device so that the hose is marked close to the hole and/or damage. 13. A test pressurisation device according to claim 1, wherein the device is adapted for a fire hose. 14. A test pressurisation device according to claim 1, wherein the second pair of press rolls is configured to press the hose together so that fluid inside the hose is moved backwards towards the end of the hose to permit drying on the inside of the hose. 15. A system for test pressurisation of a hose including the test pressurisation device according to claim 1. 16. A test pressurisation device adapted for reception of a hose, wherein the test pressurisation device includes: a first pair of press rolls between which the hose can be inserted, wherein the first pair of press rolls is mounted on a sled, anda second pair of press rolls between which the hose can be inserted,wherein the first pair of press rolls is arranged at a distance from the second pair of press rolls, andeach pair of press rolls is arranged for pressing the hose together between the rolls in conjunction with pressurisation of the hose so that a limited part of the hose located between the first and the second pair of press rolls can be held pressurised,wherein the test pressurisation device further comprises a motorised mechanism arranged to feed the hose through the pairs of press rolls in conjunction with pressurisation of the hose to allow different parts of the hose to be successively held under pressure between the first and the second pair of press rolls,wherein at least one of the pairs of press rolls is configured to operate as a pair of driving rolls for feeding of the hose at a desired speed while adjusting and/or maintaining a prescribed test pressure of the part of the hose located between the first pair of press rolls and the second pair of press rolls,wherein, in the event of a leak, the test pressure is adjustable by the second pair of press rolls being driven at constant or maximum speed whereas the first pair of press rolls is braking so that the second pair of press rolls pulls the sled with the first pair of press rolls to reduce the distance between the two pairs of press rolls and thereby retaining the prescribed test pressure of the hose. 17. A test pressurisation device adapted for reception of a hose, wherein the test pressurisation device includes: a first pair of press rolls between which the hose can be inserted, wherein the first pair of press rolls is mounted on a sled, anda second pair of press rolls between which the hose can be inserted,wherein the first pair of press rolls is arranged at a distance from the second pair of press rolls, andeach pair of press rolls is arranged for pressing the hose together between the rolls in conjunction with pressurisation of the hose so that a limited part of the hose located between the first and the second pair of press rolls can be held pressurised,wherein the test pressurisation device further comprises a motorised mechanism arranged to feed the hose through the pairs of press rolls in conjunction with pressurisation of the hose to allow different parts of the hose to be successively held under pressure between the first and the second pair of press rolls,wherein at least one of the pairs of press rolls is configured to operate as a pair of driving rolls for feeding of the hose at a desired speed while adjusting and/or maintaining a prescribed test pressure of the part of the hose located between the first pair of press rolls and the second pair of press rolls,wherein, in the event of a leak, the test pressure is adjustable by increasing a speed of the second pair of press rolls and braking the first pair of press rolls, mounted on the sled, so that the temporary decrease in pressure caused by the leak is compensated for by the fact that the first pair of press rolls, mounted on the sled, is moved closer to the second pair of press rolls by the second pair of press rolls increasing their speed and thereby adjusting/retaining the prescribed pressure of the hose. 18. A test pressurisation device adapted for reception of a hose, wherein the test pressurisation device includes: a first pair of press rolls between which the hose can be inserted, anda second pair of press rolls between which the hose can be inserted,wherein the first pair of press rolls is arranged at a distance from the second pair of press rolls, andeach pair of press rolls is arranged for pressing the hose together between the rolls in conjunction with pressurisation of the hose so that a limited part of the hose located between the first and the second pair of press rolls can be held pressurised,wherein the test pressurisation device further comprises a motorised mechanism arranged to feed the hose through the pairs of press rolls in conjunction with pressurisation of the hose to allow different parts of the hose to be successively held under pressure between the first and the second pair of press rolls,wherein at least one of the pairs of press rolls is configured to operate as a pair of driving rolls for feeding of the hose at a desired speed while adjusting and/or maintaining a prescribed test pressure of the part of the hose located between the first pair of press rolls and the second pair of press rolls,wherein the first pair of press rolls is motorised and mounted on a sled,wherein the second pair of press rolls is motorised and mounted in a fixed position.
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