FILTRATION SYSTEM AND METHOD FOR CHEMICAL RINSING A FILTRATION SYSTEM
First Claim
1. A filtration system for liquid, comprising:
- at least one filtration module for filtering the liquid,a first inlet pipe for feeding liquid to the filtration module,a second inlet pipe for feeding liquid to the filtration module andat least one outlet pipe for discharging filtrate from the filtration module,whereina first concentrate valve is arranged in the first inlet pipe,a second concentrate valve is arranged in the second inlet pipe, anda drain pipe, in which a drain valve is arranged, such that when the drain valve is open, the liquid and retentate can pass through the drain pipe and the drain valve out of an inlet compartment of the filtration module, is connected to the inlet pipes via a collecting pipe,whereinthe first inlet pipe and the second inlet pipe are connected to the collecting pipe and the collecting pipe is connected to a feed pipe,in which a feed valve is arranged, such that when the feed valve is open and one of the concentrate valves is open, liquid can pass through the feed pipe and one of the inlet pipes into the inlet compartment of the filtration module, anda cleaning branch is arranged between the first inlet pipe and the second inlet pipe, and at least one dosing feeder for adding a cleaning chemical is connected to the cleaning branch.
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Accused Products
Abstract
The invention relates to a filtration system (10) for liquid, particularly raw water, comprising at least one filtration module (20) for filtering the liquid, a first inlet pipe (21) for feeding liquid to the filtration module (20), a second inlet pipe (22) for feeding liquid to the filtration module (20) and at least one outlet pipe (26) for discharging filtrate from the filtration module (20). A cleaning branch (80) is arranged between the first inlet pipe (21) and the second inlet pipe (22), and at least one dosing feeder (81, 82, 83) for adding a cleaning chemical is connected to the cleaning branch (80). The invention also relates to a method for chemical rinsing a filtration system (10) for liquid, particularly raw water, comprising at least one filtration module (20) for filtering the liquid, a first inlet pipe (21) for feeding liquid to the filtration module (20), a second inlet pipe (22) for feeding liquid to the filtration module (20) and at least one outlet pipe (26) for discharging filtrate from the filtration module (20). In chemically rinsing operation, a cleaning chemical is added via a dosing feeder (81, 82, 83) connected to a cleaning branch (80) which is arranged between the first inlet pipe (21) and the second inlet pipe (22).
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Citations
15 Claims
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1. A filtration system for liquid, comprising:
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at least one filtration module for filtering the liquid, a first inlet pipe for feeding liquid to the filtration module, a second inlet pipe for feeding liquid to the filtration module and at least one outlet pipe for discharging filtrate from the filtration module, wherein a first concentrate valve is arranged in the first inlet pipe, a second concentrate valve is arranged in the second inlet pipe, and a drain pipe, in which a drain valve is arranged, such that when the drain valve is open, the liquid and retentate can pass through the drain pipe and the drain valve out of an inlet compartment of the filtration module, is connected to the inlet pipes via a collecting pipe, wherein the first inlet pipe and the second inlet pipe are connected to the collecting pipe and the collecting pipe is connected to a feed pipe, in which a feed valve is arranged, such that when the feed valve is open and one of the concentrate valves is open, liquid can pass through the feed pipe and one of the inlet pipes into the inlet compartment of the filtration module, and a cleaning branch is arranged between the first inlet pipe and the second inlet pipe, and at least one dosing feeder for adding a cleaning chemical is connected to the cleaning branch. - View Dependent Claims (2, 3, 4, 5, 7)
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6. (canceled)
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8. (canceled)
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9. A method for chemical rinsing a filtration system for liquid, the method comprising:
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filtering the liquid with at least one filtration module; feeding liquid via a first inlet pipe to the filtration module; feeding liquid via a second inlet pipe to the filtration module; and discharging filtrate via at least one outlet pipe from the filtration module, the method further comprising performing a chemical rinsing operation by adding a cleaning chemical via a dosing feeder connected to a cleaning branch which is arranged between the first inlet pipe and the second inlet pipe, and closing a first concentrate valve arranged in the first inlet pipe and a second concentrate valve arranged in the second inlet pipe before the cleaning chemical is added, and after chemically rinsing operation, opening the first concentrate valve and the second concentrate valve, such that liquid comprising a cleaning chemical is discharged through the first inlet pipe and through the second inlet pipe that are connected to a collecting pipe, wherein a drain pipe is connected to the collecting pipe, and a drain valve is arranged in the drain pipe, such that when the drain valve is open, the liquid and retentate can pass through the drain pipe and the drain valve out of an inlet compartment of the filtration module. - View Dependent Claims (10, 11, 12, 13, 14)
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15. (canceled)
Specification