Diffusor
The invention relates to a diffusor for adding of gases into water, said diffusor comprising a perforated tube ( 1 ) and at least one supply tube ( 2 ), said the at least one supply tube ( 2 ) is at one end coupled to a source for supplying gas and at the other end in fluid communication with the perforated tube ( 1 ), the gas is supplied to the perforated tube ( 1 ) through at least one inner supply tube ( 4; 5; 15 ) extending from the supply tube ( 2 ) to the perforated tube ( 1 ). The invention is distinctive in that at the least one inner supply tube ( 4; 5; 15 ) is a non-perforating tube and has at least one outlet ( 4 a, 5 a, 15 a ) situated at a free end of the at least one inner supply tube ( 4, 5, 15 ), said gas is adapted to be distributed into the perforated tube ( 1 ) through the at least one outlet ( 4 a, 5 a, 15 a ).
1. A diffusor for adding of gases into water, the diffusor comprising a perforated tube and at least one supply tube, the at least one supply tube is in one end adapted to be coupled to a source for supplying gas and at the other end in fluid communication with the perforated tube, the gas is supplied to the perforated tube through at least one inner supply tube extending from the supply tube to the perforated tube, wherein at the least one inner supply tube is a non-perforating tube and has at least one outlet situated at a free end of the at least one inner supply tube, the gas is adapted to be distributed into the perforated tube through the at least one outlet, and wherein the at least one outlet of the at least one inner supply tube is situated in a range from one quarter to three quarter of the length of the perforated tube.
2. The diffusor according to claim 1 , wherein the gas is supplied to the perforated tube through at least two outlets arranged within the perforated tube, the outlets are spaced apart from each other in such a way that the gas is distributed at the inside of the perforated tube.
3. The diffusor according to claim 2 , wherein one of the at least two outlets is situated at a first end of the perforated tube.
4. The diffusor according to claim 1 , wherein the at least one inner supply tube is enclosed respectively by at least one opening in a first plug, the first plug is arranged between the supply tube and the perforated tube, the first plug having at least one opening for the at least one inner supply tube.
5. The diffusor according to claim 4 , wherein the one of the at least two outlets is arranged in the first plug for supplying gas directly at the first end of the diffusor.
6. The diffusor according to claim 1 , wherein the diffusor having a first inner supply tube and a second inner supply tube, the first and second inner supply tubes extending at different positions within the perforated tube.
7. The diffusor according to claim 1 , wherein the diffusor further comprises a second plug arranged between a second supply tube and the perforated tube at a second end of the perforated tube, the second plug having at least one opening for a third inner supply tube arranged at the second end of the perforated tube.
8. The diffusor according to claim 7 , wherein the second plug having a least one additional outlet for supplying gas directly at a second end of the perforated tube.
9. The diffusor according to claim 7 , wherein the diffusor further comprises two inner supply tubes, extending from the second plug, each of the two inner supply tubes having different length inside the perforated tube.
10. The diffusor according to claim 1 , wherein the diffusor comprises a pressure valve at the opposite end of the perforated tube.
11. A method for evacuating water from, clean or disinfect a diffusor according to claim 1 , the method comprising:
arranging a pressure relief valve at a second end of the perforated tube;
supplying a pressure gas or a disinfectant through the supply tube into at least one inner supply outlet situated on the free end of the at least one inner supply tube; and
displacing the water or contaminant out of the diffusor through the pressure relief valve, until a substantial portion of the water or contaminant is evacuated out of the diffusor.
12. The method for evacuating water from, clean or disinfect a diffusor according to claim 11 , wherein the gas or disinfectant being supplied and distributed through at least two outlets arranged within the perforated tube the one of the at least two outlets is arranged substantially at a first end at the inlet of the diffusor.
13. The method for evacuating water from, clean or disinfect a diffusor according to claim 11 , wherein the process for evacuating, cleaning or disinfecting the diffusor comprises:
supplying the disinfectant fluid to the diffusor; and
supplying a high pressure gas, the gas displacing the disinfectant fluid out of the diffusor through the pressure valve.
14. The method for evacuating water from, clean or disinfect a diffusor according to claim 13 , wherein the disinfectant fluid is kept in the diffusor for a period of time before supplying the gas to displace the disinfectant.