JPH1066963A - Pressure-type circulatory filter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically remove the impurities such as body fluid of fish deposited on a bubble and floated along with the bubble by providing a closed part at the upper part of a bubble treating tank and furnishing a discharge means for removing the impurities outside the tank along with the bubbled liq. to the closed part. SOLUTION: A lid 6b formed from a transparent plastic and convexed upward is detachably fixed to the upper part of a bubble treating tank 6 to constitute an apex 6a formed at the upper part of the tank 6. The upper end of a discharge pipe 21 constituting a discharge means for removing the impurities outside the tank 6 by overflowing along with the bubbles liq. is opened in the closed part 6a. Meanwhile, the lower end of the discharge pipe 21 is opened outside the tank 6. Besides, the impurities such as the body fluid of fish mixed in the liq. are deposited on the bubble in the tank 6, the bubble is further grown, and the grown bubble is allowed to overflow the tank and automatically discharged outside the tank through the pipe 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-type circulating filter connected to, for example, a live fish tank.

[0002]

2. Description of the Related Art Some aquariums for live fish are provided with, for example, a pressure-type circulating filtration device because water is contaminated with food left uneaten, body fluid of fish, feces, and the like. It is known that this pressure-type circulating filtration device includes a foam treatment tank in order to remove organic substances such as body fluids of fish, which are particularly difficult to treat with the filtration device. In this foam treatment tank, air is blown into the liquid to form a foam, and impurities such as fish body fluid mixed into the liquid are removed by floating on the liquid surface.

[0003]

In the above foam treatment tank, there is no proper means for removing impurities such as body fluids of fish floating on the surface of the liquid, and the worker adheres to the liquid surface and floats at the appropriate time. Impurities such as body fluids of fish are scooped and collected together with the foam and discharged to the outside. As described above, the removal is performed manually, which is troublesome and unsanitary.

[0004] The present invention has been made in view of the above points, and a pressure capable of automatically removing impurities such as a body fluid of a fish which adheres to a foam and floats together with the foam without manual operation of an operator. It is an object of the present invention to provide a circulating filtration device.

[0005]

In order to solve the above-mentioned problems and to achieve the object, the invention according to the first aspect of the present invention includes a foam treatment tank for converting a liquid into a foam to remove impurities mixed in the liquid. In the pressure-type circulating filtration device, a sealing portion is provided at an upper portion of the foam treatment tank, and a take-out means for removing the impurities to the outside of the foam treatment tank together with the liquid in a foam state is provided in the sealing portion. I have. The impurities mixed into the liquid adhere to the foam formed in the foam treatment tank,
As the bubbles grow further, they are automatically removed to the outside by the extraction means. In this manner, impurities such as body fluids of fish that adhere to and float on the foam can be automatically removed together with the foam without the manual operation of the worker, which is sanitary.

The pressure-type circulating filtration apparatus according to the second aspect of the present invention is characterized in that the top surface of the closed portion is formed as a curved surface that is convex upward. Since the top surface of the closed part at the top of the foam treatment tank is a curved surface with an upward convex shape, the growing bubbles move smoothly without locally accumulating and smoothly remove impurities such as body fluids of fish that adhere to the bubbles and float. It can be removed automatically with the foam.

A pressure-type circulating filtration apparatus according to a third aspect of the present invention is characterized in that at least a part of a top surface of the closed portion is formed of a transparent member. Since at least a part of the top surface of the closed part at the top of the foam treatment tank is formed of a transparent member, a state in which impurities such as bodily fluids of fish that easily adhere to the foam from the outside and float together with the foam is automatically removed. It can be confirmed, and the contamination of the sealed portion can be easily confirmed.

[0008] A pressure-type circulating filtration apparatus according to a fourth aspect of the present invention is characterized in that at least a part of a top surface of the closed portion is detachable. Since at least a part of the top surface of the sealed portion at the top of the foam treatment tank is detachable, the top surface of the sealed portion where impurities such as body fluids of fish are easily collected and contaminated can be removed for cleaning.

The pressure-type circulating filtration apparatus according to the present invention has a surge tank for returning the liquid in the foam processing tank to an upstream liquid tank, and guides the liquid in the foam processing tank to the surge tank. The return pipe is provided so as to be movable in the vertical direction. By moving the return pipe that guides the liquid in the foam treatment tank up and down, the liquid level in the foam treatment tank can be easily adjusted, and the amount of impurities such as fish body fluid to be removed can be adjusted. it can.

[0010] According to a sixth aspect of the present invention, there is provided a pressure-type circulating filtration apparatus, comprising: a biological filtration tank and / or a physical filtration tank for washing a liquid; a foam treatment tank according to the first to fifth aspects; It is characterized by comprising a circulating means for pressurizing and circulating through the biological filtration tank and / or the physical filtration tank and the closed type foam treatment tank. The liquid can be pressurized and circulated through the biological filtration tank and / or the physical filtration tank and the foam treatment tank according to the first to fifth aspects to remove impurities mixed in the liquid, thereby purifying the liquid.

According to a seventh aspect of the present invention, there is provided a pressure-type circulating filtration apparatus wherein the biological filtration tank and / or the physical filtration tank are hermetically sealed, and the foam treatment tank is disposed downstream of the biological filtration tank and / or the physical filtration tank. And / or a liquid pressurizing means for pressurizing and sending the liquid is arranged upstream of the physical filtration tank and the foam treatment tank. The liquid pumping means is disposed, and the liquid can be pumped and easily circulated to the foam treatment tank, the biological filtration tank and / or the physical filtration tank, and the liquid can be efficiently purified.

The pressure-type circulating filtration apparatus according to the present invention is characterized in that the biological filtration tank and / or the physical filtration tank is provided with a liquid flow path for cleaning by flowing a liquid in a direction opposite to a circulation direction. Features. The biological filtration tank and / or the physical filtration tank can be reliably cleaned with a simple structure in which the liquid flows through the biological filtration tank and / or the physical filtration tank in a direction opposite to the circulation direction.

According to a ninth aspect of the present invention, there is provided a pressure-type circulating filtration apparatus, wherein a foam treatment tank is disposed downstream of a biological filtration tank and / or a physical filtration tank, and a liquid is pressurized to increase the pressure of the biological filtration tank and / or the biological filtration tank. It is characterized in that a circulation means for circulating through the physical filtration tank and the foam treatment tank is provided, and a bypass passage for communicating the upstream side of the biological filtration tank and / or the physical filtration tank with the foam treatment tank is provided. By guiding the liquid to the foam treatment tank through the bypass passage, the total circulation amount can be increased and the oxygen supply amount can be increased. Also, even if the biological filtration tank and / or the physical filtration tank may be clogged, oxygen can be supplied by circulating the liquid through the bypass passage to the foam treatment tank.

The pressure-type circulating filtration apparatus according to the present invention is characterized in that a liquid inlet is located at an upper part of the foam treatment tank and a liquid outlet is located at a lower part. When the liquid enters the liquid inlet at the upper part of the foam treatment tank and is taken out from the liquid outlet at the lower part, the flow becomes complicated and the dissolution of oxygen can be promoted.

In the pressure-type circulating filtration apparatus according to the present invention, an airstone is disposed at the bottom inside the biological filtration tank and / or the physical filtration tank, and air is supplied to the airstone before back washing. A check valve is provided in the air passage. By supplying air from the air passage and performing aeration before the back washing, dirt on the filter medium is removed and the washing efficiency is improved.

According to a twelfth aspect of the present invention, there is provided a pressure-type circulating filtration apparatus in which equipment components other than the foam treatment tank and the filtration tank are arranged on a gantry, and the biological filtration tank and the physical filtration tank are arranged behind the apparatus. Then, the operation system is centrally arranged in the front part, a piping system is further attached to the gantry, and the foam treatment tank, the device components, the biological filtration tank and the physical filtration tank are covered with a cover. I have. By attaching the piping system to the gantry, the foam processing tank, the equipment components, the biological filtration tank, and the physical filtration tank can be compactly arranged on the gantry without disturbing the piping system. Furthermore, by arranging the operation system in the front of the gantry in a concentrated manner, maintenance and inspection are easy, and the maintainability is improved. Further, since the piping system is attached to the gantry, the arrangement of the piping is easy, and the tubing can hide the piping. Further, the foam treatment tank, the component parts of the apparatus, the biological filtration tank, and the physical filtration tank are covered with a cover, so that the appearance is improved while being protected from dust and the like.

According to a thirteenth aspect of the present invention, there is provided the pressure-type circulating filtration device according to the eighth aspect, wherein the liquid flow path according to the eighth aspect supplies a liquid to the biological filtration tank and / or the physical filtration tank,
A second passage for discharging liquid from the biological filtration tank and / or the physical filtration tank, wherein the first passage and the second passage are assembled together outside the biological filtration tank and / or the physical filtration tank, and A liquid supply passage is connected to the portion, and a first switching valve and a second switching valve are respectively arranged in the first passage and the second passage so as to be adjacent to each other outside the biological filtration tank and / or the physical filtration tank. A drain pipe for discharging a liquid to the outside is connected to the first switching valve, and the first switching valve is in a state where the supply passage and the first passage are in communication with each other and the first bribe and the drain pipe are in communication with each other. The second switching valve is configured to be switchable between a state in which the supply passage and the second passage communicate with each other and a state in which the supply passage and the second passage do not communicate with each other. A first switching valve configured to be able to switch between a state in which the liquid supply passage communicates with the first bribe and a state in which the drain pipe that discharges the liquid to the outside communicates with the first passage; 2
Since the second switching valve configured to be able to switch between a state of communication with the passage and a state of non-communication is arranged adjacent to each other outside the biological filtration tank and / or the physical filtration tank, the biological filtration tank and / or Alternatively, the cleaning operation can be easily performed by flowing the liquid in the direction opposite to the circulation direction in the physical filtration tank.

According to a fourteenth aspect of the present invention, there is provided a pressure-type circulating filtration device, wherein the biological filtration tank and the physical filtration tank according to the thirteenth aspect are arranged adjacent to each other, and the first and second biological filtration tanks are respectively provided in the biological filtration tank and the physical filtration tank. A switching valve and a second switching valve are provided, and the first switching valve and the second switching valve are arranged on the same side with respect to the biological filtration tank and the physical filtration tank. Since the first switching valve and the second switching valve provided in the biological filtration tank and the physical filtration tank are arranged on the same side with respect to the biological filtration tank and the physical filtration tank, the first switching between the biological filtration tank and the physical filtration tank is performed. The switching operation of the valve and the second switching valve can be easily performed, and the operation of cleaning the biological filtration tank and the physical filtration tank can be easily performed.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pressure-type circulating filtration apparatus will be described below with reference to the drawings.

First, a first embodiment of the pressure type circulating filtration apparatus shown in FIGS. 1 to 5 will be described. 1 is a plan view of a first embodiment of a pressure-type circulating filtration device, FIG. 2 is a schematic configuration diagram of a physical filtration tank and a foam treatment tank, FIG. 3 is a schematic configuration diagram of a biological filtration tank, and FIG. FIG. 5 is a cross-sectional view of the ejector, and FIG. 5 is a view showing another embodiment of the closed portion at the top of the foam processing tank.

The pressure-type circulating filtration device 1 is connected to, for example, a live fish tank 2 and circulates and cleans water in the water tank 2 as a liquid. A physical filtration tank 4, a biological filtration tank 5, and a foam treatment tank 6 are placed on a base 3 of the pressure-type circulating filtration device 1.
, An activated carbon tank 7, an ultraviolet sterilization tank 8, and a circulation means 9, and are compactly arranged on the gantry 3. A heat exchanger 10 for controlling the temperature is connected to the activated carbon tank 7 and the ultraviolet sterilization tank 8.

The circulating means 9 includes a circulating pump 11 which is a liquid pumping means for pumping water from the water tank 2, and a physical filtration tank 4.
A pipe 12 for circulating the biological filtration tank 5, the foam treatment tank 6, the activated carbon tank 7, the ultraviolet sterilization tank 8, and the heat exchanger 10 to return to the water tank 2.
(12a to 12n) and switching valve 1 arranged in pipe 12
3 (13a to 13e). The biological filtration tank 5 and the physical filtration tank 4 are sealed, and the biological filtration tank 5 is disposed downstream of the physical filtration tank 4, and the activated carbon tank 7, the ultraviolet sterilization tank 8, and the heat An exchanger 10 is disposed, a hermetic foam treatment tank 6 is disposed further downstream, and a circulation pump 11 is disposed upstream of the physical filtration tank 4.

The circulation pump 11 includes a pipe 12a, a switching valve 1
3a is connected to the water tank 2 via the switching valve 13a.
By the operation of a, the water in the water tank 2 is sent to the circulation pump 11 through the pipe 12a. However, when the water tank 2 is washed, the washing water is recovered through the drain pipe 14 by the operation of the switching valve 13a as shown by a dotted arrow. You. A pipe 15 for leading washing water is connected between the circulation pump 11 and the switching valve 13a.
The washing water indicated by the dotted arrow is supplied to the pipe 12a by the operation of the switching valve 16 disposed in the pipe 12a.

As shown in FIG. 2, the physical filtration tank 4 is provided with a sealing portion 4a at the upper part.
The supporting stone layer 4b, the supporting stone layer 4c, and the anthracite layer 4d, which are larger than the lower part, are stacked upward, and water from the circulation pump 11 flows from the upper sealed part 4a through the pipe 12b, the switching valve 13b, and the pipe 12c. It is supplied to the layer 4d. Aquarium 2
Is filtered by flowing through the anthracite layer 4d, the small support stone layer 4c, and the large support stone layer 4b, and the pipe 12d, the switching valve 13c, the pipe 12e, and the switching valve 1 connected to the lower side are filtered.
3d, sent to the biological filtration tank 5 via the pipe 12f. A drain pipe 17 is connected to the switching valve 13b. At the time of washing, the circulation pump 11 is operated by operating the switching valves 13b and 13c.
From the pipes 12b, 12g, 12
h, the water is returned to the physical filtration tank 4 via the switching valve 13c, and the washing water is recovered from the drain pipe 17 via the switching valve 13b.

As shown in FIG. 3, the biological filtration tank 5 is provided with a sealing portion 5a at the upper part.
The coral layer 5b is laminated, and water from the physical filtration tank 4 is supplied to the coral layer 5b from below through the pipe 12f. The water in the water tank 2 filtered by the coral layer 5b is taken out from below through the closed part 5a via the pipe 12i, and is activated via the pipe 12j, the switching valve 13e, and the pipe 12k connected to the lower side, and It is supplied to the sterilization tank 8. The pigment is removed in the activated carbon tank 7 and sterilized in the ultraviolet sterilization tank 8. Switching valve 13
A drain pipe 18 is connected to d. At the time of washing, the operation of the switching valves 13e and 13d allows the washing water indicated by the dotted arrow from the circulation pump 11 to be supplied to the pipes 12b, 12g,
The water is returned to the biological filtration tank 5 via the switching valve 13e, and the washing water is recovered from the drain pipe 18 via the switching valve 13d.

The foam treatment tank 6 removes impurities mixed in the liquid by making the liquid into a foam state. As shown in FIG. 2, water in the water tank 2 is supplied from the heat exchanger 10 through a pipe 12n. Supplied from Above the foam processing tank 6, a closed portion 6a is provided. The pipe 12e connected to the outlet of the physical filtration tank 4 is branched into two,
m is connected to the lower part of the foam treatment tank 6, and the branched pipe 1
An ejector 19 is provided at 2 m. This ejector 1
In FIG. 9, one end of a pipe 20 opened to the atmosphere is opened to an orifice 19a as shown in FIG. Orifice 19
The flow velocity of the water increases at a, and the air is sucked in from the pipe 20 and supplied to the lower part of the foam processing tank 6 to serve as an air source for generating bubbles. An air pump for sending air to the foam processing tank 6 is not required, and the configuration is simple.

A lid 6b made of transparent plastic and having an upward convex shape is detachably attached to the upper part of the foam processing tank 6. This lid 6b is used for the foam treatment tank 6
Of the sealing portion 6a formed on the upper portion of the upper portion.
The sealing section 6a has an opening at the upper end of an extraction pipe 21 that constitutes extraction means for removing impurities to the outside of the foam treatment tank 6 by overflowing together with the liquid in the foam state. Note that the lower end of the take-out pipe 21 is open to the outside of the foam treatment tank 6. Impurities such as fish body fluid mixed into the liquid adhere to the foam formed in the foam processing tank 6. When the foam further grows, it overflows and is automatically removed to the outside via the extraction pipe 21. In this manner, impurities such as body fluids of fish that adhere to and float on the foam can be automatically removed together with the foam without the manual operation of the worker, which is sanitary.

The lid 6b, which forms the top surface of the sealing portion 6a at the top of the foam treatment tank 6, is formed to have an upwardly convex curved surface.
Since the top surface of the sealing portion 6a is a curved surface, the growing bubbles can move without locally accumulating and overflow from the extraction pipe 21 smoothly.

Further, since the lid 6b is formed of a transparent member, it is possible to confirm a state in which impurities such as the body fluid of the fish which easily adhere to the bubbles from the outside and are automatically removed together with the bubbles, and furthermore, Dirt on the sealing portion 6a can also be easily confirmed.

Further, the lid 6b is fastened and fixed to the upper part of the foam treatment tank 6 with bolts 22, and the top surface of the sealing portion 6a is detachable. As described above, since the top surface of the sealing portion 6a at the upper portion of the foam treatment tank 6 is detachable, the top surface of the sealing portion 6a where impurities such as body fluids of fish are easily collected and contaminated can be removed for cleaning.

As shown in FIG. 5, the lid 6b may be made detachable with one touch. That is, a pair of supports 23 is provided above the foam processing tank 6, and the supports 23 are provided with engagement notches 23a. On the other hand, the pressing body 2 provided on the mounting bar 24 is provided above the center of the sealing portion 6a.
5 and rotate the mounting bar 24 to rotate the pair of support members 2.
3, the lid 6b is pushed downward by the pressing body 25 of the mounting bar 24, and the foam processing tank 6
Adhered to the top of

On the side of the foam treatment tank 6, a surge tank 26 for returning the liquid in the foam treatment tank 6 to the water tank 2, which is the liquid tank on the upstream side, is provided. An upper end opening of a return pipe 27 that guides water in the foam treatment tank 6 faces the surge tank 26, and a slide pipe 27 a that can move in a vertical direction is connected to an upper end of the return pipe 27. By moving the slide tube 27a in the vertical direction, the liquid level in the foam treatment tank 6 can be easily adjusted, and the amount of impurities such as body fluids of fish to be removed by overflow can be adjusted. That is, since the liquid level of the foam treatment tank 6 and the liquid level of the surge tank 26 are substantially the same, for example, when the amount of impurities to be removed is large, the slide tube 2
7a may be lowered to lower the liquid level of the foam treatment tank 6.

During circulation, the pressure-type circulating filtration device 1 sends the water in the water tank 2 in the direction indicated by the solid line arrow by operating the switching valves 13a, 13b, 13c, 13d to perform physical filtration and biological filtration. , Ultraviolet sterilization tank 8, activated carbon tank 7, heat exchanger 10
In addition, the liquid can be easily circulated to the water tank 2 via the foam processing tank 6, and the liquid can be efficiently purified.

The pressure-type circulating filtration apparatus 1 is provided with a liquid flow path for cleaning by flowing a liquid in a direction opposite to the circulation direction to the physical filtration tank 4 and the biological filtration tank 5. By switching the valves 16, 13 b, 13 c, 13 d, and 13 e, the washing water is pressure-fed from the pipe 15 in the direction indicated by the dotted line arrow, and the washing water is supplied to the physical filtration tank 4 and the biological filtration tank 5 in a direction opposite to the circulation direction. It is possible to clean the biological filtration tank 5 and the physical filtration tank 4 with a simple structure and surely by cleaning by flowing.

Next, a description will be given of a second embodiment of the pressure-type circulating filtration apparatus shown in FIGS. FIG. 6 is a plan view of a second embodiment of the pressure-type circulating filtration apparatus, and FIG. 7 is a schematic configuration diagram of a foam treatment tank.

The pressure type circulating filtration apparatus 1 of the second embodiment
The same components as those in FIGS. 1 to 5 are denoted by the same reference numerals and description thereof is omitted. The pressure type circulating filtration device 1 of the second embodiment includes an air stone 30
Is arranged, and air is supplied from the air pump 31 to the air stone 30 via the pipe 32, and foam is formed by the air stone 30.

Next, a description will be given of a third embodiment of the pressure-type circulating filtration apparatus shown in FIGS. FIG. 8 is a plan view of a third embodiment of a pressure-type circulating filtration device, and FIG. 9 is a schematic configuration diagram of a cyclone device and an ejecta.

The pressure type circulating filtration device 1 of the third embodiment
The same components as those in FIGS. 1 to 5 are denoted by the same reference numerals and description thereof is omitted. The pressure type circulating filtration device 1 of the third embodiment is provided with a cyclone device 40 and an ejectat 50 instead of the physical filtration tank 4. Impurities are deposited in the storage section 40 a of the cyclone device 40, and the deposited drain is discharged by operating the discharge valve 41. The air sucked from the air pipe 51 by the ejector 50 and the pipe 12 are provided in the cyclone portion 40 b of the cyclone device 40.
a from the water from the cyclone 40b
Then, the impurities are separated and deposited in the lower storage section 40a. A rising prevention plate 42 as shown in FIG. 9B is attached to the storage section 40a via a bracket 42a. The water accumulated in the cyclone unit 40b is sucked through the pipe 12x by the driving of the circulation pump 11, and is supplied from the circulation pump 11 to the biological filtration tank 5. Since the cyclone device 40 does not require a filter medium, there is no clogging of the filter medium, and stable filtration can always be performed.

Next, a fourth embodiment of the pressure-type circulating filtration apparatus shown in FIGS. 10 to 12 will be described. FIG. 10 is a plan view of a fourth embodiment of a pressure-type circulating filtration apparatus, FIG. 11 is a view showing a state of cleaning a physical filtration tank, and FIG. 12 is a view showing a state of cleaning a biological filtration tank.

The pressure type circulating filtration device 1 of the fourth embodiment
Is configured the same as the pressure-type circulating filtration apparatus of the second embodiment shown in FIGS. 6 and 7, but the arrangement of the components is different.

In this embodiment, the physical filtration tank 4 and the biological filtration tank 5 are arranged adjacent to each other, and the liquid flow path is a first passage 7 for supplying a liquid to the biological filtration tank 5 and the physical filtration tank 4.
5, 77, and second passages 76, 78 for discharging liquid from the physical filtration tank 4 and the biological filtration tank 5. The first passages 75 and 77 and the second passages 76 and 78 are gathered together outside the physical filtration tank 4 and the biological filtration tank 5, and the liquid supply passages 81 and 82 are connected to the gathering portions 79 and 80, respectively. The first switching valves 70 and 73 and the second switching valves 71 and 74 are disposed adjacent to each other outside the physical filtration tank 4 and the biological filtration tank 5 in the first passages 75 and 77 and the second passages 76 and 78, respectively. . A drain pipe 72 for discharging liquid to the outside is connected to the first switching valves 70 and 73, and the first switching valves 70 and 73 are connected to the supply passages 81 and 82 and the first passages 75 and 75, respectively.
77 and a state in which the first bribes 75 and 77 and the drain pipe 72 are in communication with each other. The second switching valves 71 and 74 are configured to be able to switch between a state in which the supply passages 81 and 82 and the second passages 76 and 78 are in communication and a state in which they are not in communication.

At the time of circulation, as shown in FIG. 10, water from the water tank 2 is supplied to the circulation pump 11, the liquid supply passage 81, the first
Switching valve 70, first passage 75, physical filtration tank 4, second passage 76, second switching valve 71, liquid supply passage 82, first switching valve 73, first bribe 77, biological filtration tank 5, second Passage 7
8, the second switching valve 74, the heat exchanger 10, the activated carbon tank 7, the ultraviolet sterilizing tank 8, the flow rate adjusting orifice 60, the foam treatment tank 6, and the surge tank 26 return to the water tank 2, and the physical filtration tank 4
The drain from the biological filtration tank 5 is collected from a drain pipe 61.

As shown in FIG. 11, when cleaning the physical filtration tank 4, the first switching valve 70 is connected to the supply passage 81 and the first passage 75.
Communication between the first passage 75 and the drain pipe 72 and the second switching valve 71
Is switched to a state in which the supply passage 81 and the second passage 76 are communicated with each other. The first switching valve 70 and the second switching valve 71
By the operation described above, the washing water from the circulation pump 11 is supplied to the supply passage 8.
1, second switching valve 71, second passage 76, physical filtration tank 4,
It flows in the order opposite to the circulation direction in the order of the first passage 75 and the first switching valve 70, cleans the physical filtration tank 4, and is collected from the drain pipe 72.

As shown in FIG. 12, when cleaning the biological filtration tank 5, the first switching valve 73 is connected to the supply passage 82 and the first passage 77.
Communication between the first passage 77 and the drain pipe 72 and the second switching valve 74
Is switched to a state in which the supply passage 82 and the second passage 78 communicate with each other. By operating the first switching valve 73 and the second switching valve 74, the washing water from the circulation pump 11 is supplied to the supply passage 81,
First switching valve 70, first passage 75, physical filtration tank 4, second
Passage 76, second switching valve 71, supply passage 82, second switching valve 74, second passage 78, biological filtration tank 5, first passage 7
7. In the order of the first switching valve 73, the biological filtration tank 5 flows in the direction opposite to the circulation direction, cleans the biological filtration tank 5, and is collected from the drain pipe 72.

As described above, the state in which the liquid supply passages 81 and 82 communicate with the first bribes 75 and 77 and the state in which the drain pipe 72 for discharging the liquid to the outside communicates with the first passages 75 and 77. Switching valve 7 configured to be able to switch between
0, 73, supply passages 81, 82 and second passages 76, 78
Since the second switching valves 71 and 74 configured to be able to switch between a state in which they communicate with each other and a state in which they do not communicate are arranged adjacent to each other outside the physical filtration tank 4 and the biological filtration tank 5, the physical filtration tank The cleaning operation can be easily performed by flowing the liquid in the direction opposite to the circulation direction to the biological filtration tank 4 and the biological filtration tank 5.

The physical filtration tank 4 and the biological filtration tank 5 are disposed adjacent to each other, and the physical filtration tank 4 and the biological filtration tank 5 are respectively provided with first switching valves 70 and 73 and second switching valves 71 and 74.
The first switching valves 70 and 73 and the second switching valves 71 and 74 are arranged on the same side with respect to the physical filtration tank 4 and the biological filtration tank 5. That is, FIGS. 10 to 12
In the embodiment, the first switching valves 70 and 73 and the second switching valves 71 and 74 are arranged below the physical filtration tank 4 and the biological filtration tank 5 in the figure.

As described above, the physical filtration tank 4 and the biological filtration tank 5
Since the first switching valves 70 and 73 and the second switching valves 71 and 74 provided on the same side with respect to the physical filtration tank 4 and the biological filtration tank 5, respectively, the physical filtration tank 4 and the biological filtration tank 5 are provided.
First switching valves 70, 73 and second switching valves 71, 74
Can be easily performed, and the operation of cleaning the physical filtration tank 4 and the biological filtration tank 5 can be easily performed.

In each of the embodiments described above, the purification of the water in the aquarium for live fish has been described. However, the present invention can be widely applied to the purification of liquid limited to this.

Next, a description will be given of a fifth embodiment of the pressure-type circulating filtration apparatus shown in FIGS. FIG. 13 is a front view of the pressure-type circulation filtration device, FIG. 14 is a plan view of the pressure-type circulation filtration device, FIG. 15 is a right side view of the pressure-type circulation filtration device, and FIG.
Is a left side view of the pressure-type circulating filtration device, FIG. 17 is a front view in a state where a part of the cover is removed, FIG. 18 is a plan view in a state where a part of the cover is removed, and FIG. FIG. 20 is a left side view with a part of the cover removed, and FIG. 21 is an exploded perspective view of the pressure-type circulating filtration device.

The pressure type circulating filtration device 1 of the fifth embodiment
The same components as those in FIGS. 1 to 5 are denoted by the same reference numerals and description thereof is omitted. The gantry 3 of the pressure-type circulating filtration device 1 has a high central portion 3a, a low inner portion 3b, and a front portion 3c. On the high central portion 3a, a device configuration other than the foam treatment tank 6 and the filtration tank is provided. The parts 100 are arranged, the biological filtration tank 5 and the physical filtration tank 4 are arranged in the lower inner part 3b, and the operation system 110 is concentrated in the lower front part 3c.

The apparatus components 100 other than the filtration tank are composed of a heat exchanger 101, an air pump 104, an air branch pipe 105, a circulation pump 11, an activated carbon tank 7, an ultraviolet sterilization tank 8, a heat exchanger 10, and the like. The heat exchanger 101 includes a heat exchange tank 101a and a conditioning unit 101.
b, composed of an air compressor 101c. The foam treatment tank 6 has a cover 150, and the apparatus component 100 has a cover 1
51, the biological filtration tank 5 is covered with a cover 152 and the physical filtration tank 4 is covered with a cover 153, and is protected from dust and the like, and the appearance is improved. The controller 154 is attached to the cover 151.

The gantry 3 is provided with a piping system 160, and the piping system 160 is further provided with an operation system 170. A piping system 160 circulates the circulation pump 11 for pumping water from the water tank 2, the physical filtration tank 4, the biological filtration tank 5, the foam treatment tank 6, the activated carbon tank 7, and the ultraviolet sterilization tank 8 and returns the pipe 200 to the water tank 2. (200a to 200l). Piping 200b, 200c, 200d, 200f, 2
00g and 200h are attached to the high center part 3a of the gantry 3 so as to penetrate in the front-rear direction, and the gantry 3 can hide the piping, thereby improving the appearance. As the circulation pump 11, a centrifugal pump is used.

The operation system 170 is provided with a switching valve 300 (300a-30) for switching the liquid circulation direction between the filtration direction and the washing direction.
0d), and by arranging the lower front portion 3c of the gantry 3 in a concentrated manner, the switching operation can be easily performed from the front side, and maintenance and inspection are easy and the maintainability is improved.

By attaching the piping system 160 to the gantry 3, the piping system 160 is not obstructed, and the foam treatment tank 6, the equipment component 100, the biological filtration tank 5, and the physical filtration tank 4 are compactly arranged on the gantry 3. And the degree of freedom of arrangement is improved. In addition, the activated carbon tank 7 and the ultraviolet sterilization tank 8 that require relatively maintenance and inspection of the device component 100 are disposed above the heat exchanger 101, and are located closer to the biological filtration tank 5 and the physical filtration tank 4. Maintenance is easy. Further, since the piping system 160 is attached to the gantry 3, the arrangement of the piping 200 (200a to 200l) is easy.

Further, a water discharge portion 310 is provided in the lower inner portion 3 b of the gantry 3, and the water discharge portion 310 is connected to the hose 31.
1 is connected. The condensed water generated from the pressure-type circulating filtration device 1 is guided to the lower inner part 3b of the gantry 3, and the condensed water is discharged from the water discharge part 310 via the hose 311 and does not overflow to the floor.

A foam treatment tank 6 is disposed downstream of the biological filtration tank 5 and the physical filtration tank 4, and a bypass passage 400 for communicating the upstream of the biological filtration tank 5 and the physical filtration tank 4 with the foam treatment tank 6. Is provided. The heat exchanger 101 is disposed in the bypass passage 400, and the upstream side of the bypass passage 400 is connected to the pipe 200b via the switching valve 300e.
The downstream side is connected to the upper part of the foam treatment tank 6.

The liquid is sent from the pipe 200b to the physical filtration tank 4 via the pipe 200c,
00, sent to the foam treatment tank 6 via the heat exchanger 101,
The flow rate sent to the physical filtration tank 4 and the flow rate sent to the foam treatment tank 6 are substantially the same, and the liquid is guided to the foam treatment tank 6 through the bypass passage 400 to increase the total circulation amount and increase the oxygen supply amount. Can be increased. Also, even if the biological filtration tank 5 and / or the physical filtration tank 4 may be clogged, the liquid can be supplied to the foam treatment tank 6 through the bypass passage 400 and circulated to supply oxygen. Also, by disposing the heat exchanger 101 in the bypass passage 400,
The heat exchange flow rate increases and the heat exchange efficiency improves.

A pipe 200k is connected to the bottom of the foam treatment tank 6, and a liquid inlet 200k1 of the pipe 200k is
Located at the top. A water tank 2 is provided on the side of the foam treatment tank 6.
A surge tank 26 for returning to the
The liquid is returned to the water tank 2 from the take-out part 26a through the pipe 200l.

An upper end opening of a return pipe 27 for guiding water in the foam treatment tank 6 faces the surge tank 26, and a slide pipe 27 a that can move vertically is connected to the upper end of the return pipe 27. The liquid level in the foam treatment tank 6 can be easily adjusted by moving the slide tube 27a in the vertical direction. The liquid outlet 27 b formed at the lower end of the return pipe 27 is located at the lower part in the foam treatment tank 6. The liquid enters the liquid inlet 200k1 at the upper part of the foam treatment tank 6 and is taken out from the liquid outlet 27b at the lower part, whereby the flow becomes complicated and the dissolution of oxygen can be promoted.

An extraction pipe 2 for removing impurities to the outside of the foam treatment tank 6 by overflowing together with the liquid in a foam state.
1 is rotatably provided in the foam processing tank 6. The position of the lower end opening 21a of the take-out pipe 21 can be changed. The extraction pipe 2 is provided in the sealing portion 6a.
The upper end opening 21b is located, and the pure substance is removed from the foam processing tank 6 from the upper end opening 21b together with the foamed liquid by overflow.

Air stones 500 and 501 are arranged at the bottom inside the biological filtration tank 5 and the physical filtration tank 4, and air hoses 504 and 505 are connected to the air stones 500 and 501 via check valves 502 and 503. The air hoses 504 and 505 are connected to the air branch pipe 105. Switching valves 506 and 507 are provided in the air branch pipe 105. When the switching valves 506 and 507 are operated to drive the air pump 104 before backwashing, an air passage formed by the air branch pipe 105 and the air hoses 504 and 505 is provided. Is supplied through the check valves 502 and 503. The air can be aerated from the air stones 500 and 501 to remove dirt from the filter medium and improve the washing efficiency.

The air stones 500 and 501 have a check valve 5
The air hoses 504, 505 are connected via the air hoses 02, 503, and the check valves allow air to flow from the air hoses 504, 505 to the air stones 500, 501, and the physical filtration tank 4 and the biological filtration tank 5 The air hoses 504 and 505 are connected to the air stone 50 even during normal operation (when backwashing is not performed) since the water is prevented from flowing from the air branch pipe 105 and the air pump 104 to the air pump 104.
It is often convenient to keep it connected to 0,501.

An air hose 511 is connected to the air branch pipe 105 via a switching valve 510, and the air hose 511 is connected to an air stone 512 below the foam processing tank 6 via a switching valve 508, and is connected to the lower part of the foam processing tank 6. Air is supplied to the air source to generate air bubbles.

[0064]

As described above, according to the first aspect of the present invention, impurities mixed into the liquid adhere to the foam formed in the foam treatment tank, and when the foam further grows, the extracting means automatically causes the foam to grow. By removing to the outside, impurities such as body fluids of fish that adhere to and float on the foam can be automatically removed together with the foam without the manual operation of the worker, which is sanitary.

According to the second aspect of the present invention, since the top surface of the sealing portion at the top of the foam treatment tank is a curved surface having an upwardly convex shape, the growing bubbles move smoothly without being locally collected, and the foam is smoothly moved. It is possible to automatically remove impurities such as body fluids of fish floating on the surface together with bubbles.

According to the third aspect of the present invention, since at least a part of the top surface of the sealing portion at the upper part of the foam treatment tank is formed of a transparent member, the body fluid of the fish or the like that easily adheres to the foam from the outside and floats. The state in which impurities are automatically removed together with the bubbles can be confirmed, and the contamination of the sealed portion can be easily confirmed.

According to the fourth aspect of the present invention, since at least a part of the top surface of the sealing portion at the top of the foam treatment tank is detachable, the top surface of the sealing portion where impurities such as fish body fluids are easily collected and contaminated is removed. Can be washed.

According to the fifth aspect of the present invention, the level of the liquid in the foam treatment tank can be easily adjusted by moving the return pipe for guiding the liquid in the foam treatment tank in the vertical direction, and the fish to be removed can be adjusted. The amount of impurities such as body fluids can be adjusted.

The invention according to claim 6 is characterized in that a biological filtration tank and / or
Alternatively, the liquid can be pressurized and circulated through the physical filtration tank and the foam treatment tank according to the first to fifth aspects to remove impurities mixed in the liquid, thereby purifying the liquid.

According to the seventh aspect of the present invention, the liquid pumping means is arranged to pump the liquid and to easily circulate the liquid to the foam treatment tank, the biological filtration tank and / or the physical filtration tank, and to efficiently supply the liquid. Purification is possible.

The invention according to claim 8 is characterized in that a biological filtration tank and / or
Alternatively, the biological filtration tank and / or the physical filtration tank can be reliably cleaned with a simple structure in which the liquid flows in the physical filtration tank in a direction opposite to the circulation direction.

According to the ninth aspect of the present invention, by introducing the liquid to the foam treatment tank through the bypass passage, the total circulation amount can be increased and the oxygen supply amount can be increased. In addition, biological filtration tank and /
Alternatively, even if the physical filtration tank may be clogged, the liquid can be supplied to the foam treatment tank through the bypass passage and circulated to supply oxygen.

According to the tenth aspect of the present invention, since the liquid enters from the liquid inlet at the upper part of the foam treatment tank and is taken out from the liquid outlet at the lower part, the flow becomes complicated and the dissolution of oxygen can be promoted.

According to the eleventh aspect of the present invention, by supplying air from the air passage and performing aeration before backwashing, it is possible to remove dirt from the filter medium and improve the washing efficiency.

According to a twelfth aspect of the present invention, by attaching a piping system to the gantry, the piping system is not obstructed, and the foam treatment tank, the equipment components, the biological filtration tank and the physical filtration tank are compactly arranged on the gantry. Can be. Furthermore, by arranging the operation system in a concentrated manner in front of the gantry, maintenance and inspection are easy, and the maintainability can be improved. Also, since the piping system is attached to the gantry, piping arrangement is easy,
Moreover, the piping can be hidden by the mount. Further, the foam treatment tank, the component parts of the apparatus, the biological filtration tank, and the physical filtration tank are covered with a cover, so that the appearance is improved while being protected from dust and the like.

According to a thirteenth aspect of the present invention, a state in which the liquid supply passage and the first bribe are communicated with each other and a state in which the drain pipe for discharging the liquid to the outside and the first passage are communicated can be switched. A first switching valve and a second switching valve configured to be able to switch between a state in which the supply passage and the second passage are communicated and a state in which they are not communicated with each other outside the biological filtration tank and / or the physical filtration tank. Since they are arranged adjacent to each other, the cleaning operation can be easily performed by flowing the liquid through the biological filtration tank and / or the physical filtration tank in a direction opposite to the circulation direction.

According to the fourteenth aspect of the present invention, the first switching valve and the second switching valve provided respectively in the biological filtration tank and the physical filtration tank are arranged on the same side with respect to the biological filtration tank and the physical filtration tank. The operation of switching between the first switching valve and the second switching valve between the biological filtration tank and the physical filtration tank can be easily performed, and the operation for cleaning the biological filtration tank and the physical filtration tank can be easily performed.

[Brief description of the drawings]

FIG. 1 is a plan view of a first embodiment of a pressure type circulation filtration device.

FIG. 2 is a schematic configuration diagram of a physical filtration tank and a foam treatment tank.

FIG. 3 is a schematic configuration diagram of a biological filtration tank.

FIG. 4 is a sectional view of an ejector of the foam processing tank.

FIG. 5 is a view showing another embodiment of the closed portion at the top of the foam processing tank.

FIG. 6 is a plan view of a second embodiment of the pressure-type circulating filtration apparatus.

FIG. 7 is a schematic configuration diagram of a foam processing tank.

FIG. 8 is a plan view of a third embodiment of the pressure-type circulating filtration apparatus.

FIG. 9 is a schematic configuration diagram of a cyclone device and an ejecta.

FIG. 10 is a plan view of a fourth embodiment of the pressure-type circulation filtration device.

FIG. 11 is a diagram showing a state in which the physical filtration tank is washed.

FIG. 12 is a diagram showing a state in which the biological filtration tank is washed.

FIG. 13 is a front view of a fifth embodiment of the pressure-type circulating filtration apparatus.

FIG. 14 is a plan view of a fifth embodiment of the pressure-type circulating filtration apparatus.

FIG. 15 is a right side view of a fifth embodiment of the pressure-type circulation filtration device.

FIG. 16 is a left side view of a fifth embodiment of the pressure-type circulating filtration apparatus.

FIG. 17 is a front view in a state where a part of a cover is removed.

FIG. 18 is a plan view showing a state where some covers are removed.

FIG. 19 is a right side view with a part of the cover removed.

FIG. 20 is a left side view with a part of the cover removed.

FIG. 21 is an exploded perspective view of a pressure-type circulation filtration device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pressure circulation filtration apparatus 4 Physical filtration tank 5 Biological filtration tank 6 Foam treatment tank 6a Sealing part 11 Circulation pump 21 Extraction pipe

──────────────────────────────────────────────────の Continuation of the front page (51) Int.Cl. ⁶ Identification code Agency reference number FI Technical display location C02F 3/06 ZAB C02F 9/00 502Z 9/00 501 B01D 35/02 C 502 35/14 101

Claims (14)

[Claims] 1. A pressure-type circulating filtration apparatus having a foam treatment tank for removing impurities mixed in a liquid by foaming the liquid, wherein a closed portion is provided at an upper portion of the foam treatment tank, and the impurity is further provided in the sealed portion. A pressure-type circulating filtration device provided with a take-out means for removing water from the foam treatment tank together with the foamed liquid. 2. The pressure-type circulating filtration device according to claim 1, wherein a top surface of the closed portion is formed as a curved surface having a convex shape upward. 3. The pressure-type circulating filtration device according to claim 1, wherein at least a part of a top surface of the closed portion is formed of a transparent member. 4. The pressure-type circulating filtration device according to claim 1, wherein at least a part of a top surface of the sealing portion is detachable. 5. A surge tank for returning a liquid in the foam processing tank to an upstream liquid tank, and a return pipe for guiding the liquid in the foam processing tank is provided in the surge tank so as to be movable in a vertical direction. 5. The method according to claim 1, wherein:
The pressure-type circulating filtration device according to any one of the above. 6. A biological filtration tank and / or a physical filtration tank for washing a liquid, the foam treatment tank according to any one of claims 1 to 5, and the biological filtration tank and / or a physical filtration tank by pressurizing the liquid. A pressure type circulating filtration device comprising: a tank; and a circulating means for circulating the liquid in the closed type foam treatment tank. 7. The biofiltration tank and / or the physical filtration tank is hermetically sealed, and the foam treatment tank is arranged downstream of the biological filtration tank and / or the physical filtration tank. 7. A pressure-type circulating filtration device according to claim 6, wherein liquid pressure feeding means for feeding the liquid under pressure is arranged on the side. 8. The biological filtration tank and / or the physical filtration tank is provided with a liquid flow path for cleaning by flowing a liquid in a direction opposite to a circulation direction. Pressure circulation filter. 9. A circulating means for disposing a foam treatment tank downstream of the biological filtration tank and / or the physical filtration tank, and for pressurizing and circulating the liquid through the biological filtration tank and / or the physical filtration tank and the foam treatment tank. The pressure type according to any one of claims 1 to 8, further comprising: a bypass passage for communicating the upstream side of the biological filtration tank and / or the physical filtration tank with the foam treatment tank. Circulation filtration device. 10. The pressure-type circulating filtration apparatus according to claim 1, wherein a liquid inlet is located at an upper part of the foam treatment tank, and a liquid outlet is located at a lower part. 11. An air stone is arranged at the bottom inside the biological filtration tank and / or the physical filtration tank, and a check valve is provided in an air passage for supplying air to the air stone before back washing. The pressure-type circulating filtration device according to any one of claims 1 to 10, wherein 12. An apparatus component other than the foam treatment tank and the filtration tank is arranged on a gantry, the biological filtration tank and the physical filtration tank are arranged in a deep part thereof, and an operation system is centrally arranged in a front part. The pressure system according to any one of claims 1 to 11, wherein a piping system is further attached to the gantry, and the foam treatment tank, the device components, the biological filtration tank, and the physical filtration tank are covered with a cover. Circulation filtration device. 13. The method according to claim 13, wherein the liquid flow path includes the biological filtration tank and / or the biological filtration tank.
Or a first passage for supplying a liquid to the physical filtration tank, and a second passage for discharging the liquid from the biological filtration tank and / or the physical filtration tank, wherein the first passage and the second passage are formed by a biological filtration tank and And / or gathering each other outside the physical filtration tank and connecting a liquid supply passage to the gathering portion, and connecting a first switching valve and a second switching valve to the first passage and the second passage, respectively, with the biological filtration tank and And / or disposed adjacent to each other outside the physical filtration tank, and a drain pipe for discharging liquid to the outside is connected to the first switching valve, and the first switching valve connects the supply passage and the first passage. The state in which the supply passage and the second passage are communicated with each other and the state in which the supply passage and the second passage are communicated with each other can be switched between a state in which the supply passage and the drain passage communicate with each other. Is configured to be switchable. Pressure type circulation filtration system according to claim 8, wherein. 14. The biological filtration tank and the physical filtration tank are disposed adjacent to each other, and the biological filtration tank and the physical filtration tank are provided with the first switching valve and the second switching valve, respectively.
14. The pressure-type circulating filtration device according to claim 13, wherein the switching valve and the second switching valve are arranged on the same side with respect to the biological filtration tank and the physical filtration tank.