Filtration apparatus
First Claim
1. A filtration apparatus comprising:
- a tank for housing a fluid containing removables, a filter apparatus for filtering the fluid, an air diffuser located under the filter apparatus and generating air bubbles inside the fluid, an air pump for supplying gas via an air pipe connected to the air diffuser, wherein the air pipe is provided with an adjustment valve regulated in advance so that a predetermined amount of gas is caused to pass therethrough, and a stop valve for blocking or releasing the gas that passes through the air pipe.
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Accused Products
Abstract
A filtration apparatus is provided which is easy to maintain, manage and which enables preservation of filtration characteristics due to the fact that filtration is carried out by use of a gelatinous filter apparatus. In the filtration apparatus, filtration characteristics can be maintained by providing a bubble supplying mechanism for removing a sedimentary layer comprising removables that is formed on a surface of a filtration film and a filtration characteristics restoring mechanism for restoring the filter film clogged by the removables by causing a back-flow of filtered water accumulated in a cistern. Filtration apparatus maintenance and management are facilitated by improving recovery efficiency of the precipitated removables by tapering a lower part inside a raw water tank and providing a recovery tank for recovering removables via a valve.
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Citations
41 Claims
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1. A filtration apparatus comprising:
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a tank for housing a fluid containing removables, a filter apparatus for filtering the fluid, an air diffuser located under the filter apparatus and generating air bubbles inside the fluid, an air pump for supplying gas via an air pipe connected to the air diffuser, wherein the air pipe is provided with an adjustment valve regulated in advance so that a predetermined amount of gas is caused to pass therethrough, and a stop valve for blocking or releasing the gas that passes through the air pipe. - View Dependent Claims (2, 3, 4, 11, 12)
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5. A filtration apparatus comprising:
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a tank for housing a fluid containing colloidal removables, a filter apparatus formed of a first filter immersed inside the tank and a second filter comprising a gel film adhered to a surface of the first filter, an air diffuser located under the filter apparatus and generating air bubbles inside the fluid, an air pump for supplying gas via an air pipe connected to the air diffuser, wherein the air pipe is provided with an adjustment valve regulated in advance so that a predetermined amount of gas is caused to pass therethrough, and a stop valve for blocking or releasing the gas that passes inside the air pipe. - View Dependent Claims (6, 7, 8, 9, 10)
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13. A filtration apparatus comprising:
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a tank for housing a fluid containing removables, a filter apparatus formed of a first filter immersed inside the tank and a second filter comprising the removables deposited on a surface of the first filter, a pump connected to the filter apparatus via a pipe, wherein the second filter is formed by the fluid passing through the first filter by applying a suction pressure from the pump and, the filter apparatus thus having the second filter formed filters the fluid by causing the fluid to pass by applying a suction pressure from the pump, wherein the suction pressure of the pump in a process of forming the second filter is larger than in a process of filtering the fluid. - View Dependent Claims (14, 15, 16, 17)
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18. A filtration apparatus comprising:
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a tank for housing a fluid containing colloidal removables, a filter apparatus formed of a first filter immersed inside the tank and a second filter comprising a gel film adhered to a surface of the first filter, a pump connected to the filter apparatus via a pipe, wherein the second filter is formed by the fluid passing through the first filter by applying a suction pressure from the pump and, the filter apparatus thus having the second filter formed filters the fluid by causing the fluid to pass by applying a suction pressure from the pump, wherein the suction pressure of the pump in a process of forming the second filter is larger than in a process of filtering the fluid. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A filtration apparatus comprising:
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a tank for housing a fluid containing removables, a filter apparatus immersed inside the tank, a recovery tank for removables precipitation which communicates with a lower part of the tank via a valve, wherein the recovery tank is detachable from the tank by closing the valve and detaching the recovery tank from the tank to thus recover removables precipitated in the recovery tank. - View Dependent Claims (25, 26, 27, 28)
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29. A filtration apparatus comprising:
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a tank for housing a fluid containing colloidal removables, a filter apparatus formed of a first filter immersed inside the tank and a second filter comprising a gel film adhered to a surface of the first filter, a recovery tank for removables precipitation which communicates with a lower part of the tank via a valve, wherein the recovery tank is detachable from the tank by closing the valve and detaching the recovery tank from the tank to thus recover removables precipitated in the recovery tank. - View Dependent Claims (30, 31, 32, 33, 34, 35)
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36. A filtration apparatus comprising:
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a tank for housing a fluid containing removables, a filter apparatus formed of a first filter immersed inside the tank and a second filter comprising removables deposited on a surface of the first filter, a pump connected to the filter apparatus via a pipe, a peel cistern connected to the pipe and storing filtered water filtered by the filter apparatus, wherein the peel cistern is located at a level above a fluid level of the fluid contained in the tank and when the second filter clogs and a flow rate of the filtered water decreases, the second filter is removed by causing the filtered water accumulated in the peel cistern to flow back in the filter apparatus via the pipe. - View Dependent Claims (37, 38)
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39. A filtration apparatus comprises:
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a tank for housing a fluid containing colloidal removables, a filter apparatus formed of a first filter immersed inside the tank and a second filter comprising a gel film attached to a surface of the first filter, a pump connected to the filter apparatus via a pipe, a peel cistern connected to the pipe and storing filtered water filtered by the filter apparatus, wherein the peel cistern is located at a level above a fluid level of the fluid contained in the tank and when the second filter clogs and a flow rate of the filtered water decreases, the gelatinous second filter is removed by causing the filtered water accumulated in the peel cistern to flow back to the filter apparatus the via the pipe - View Dependent Claims (40, 41)
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Specification