JP4909197B2 - Backwash structure of filtration tank in live fish tank system - Google Patents

Description

The present invention relates to a reverse cleaning structure for a filtration tank in a live fish tank apparatus.

  Conventionally, this type of live fish aquarium device has a tank for storing live fish, a foam separation tank connected to the tank, a filtration tank for filtering seawater treated in the foam separation tank, and the filtered seawater into the tank again. What is provided with the circulation pump tank to circulate and the sterilization tank which sterilizes seawater is well-known (for example, refer patent document 1).

  Seawater stored in the aquarium of the live fish tank apparatus needs to remove sludge such as uneaten food and excrement such as live fish. In the live fish aquarium apparatus of Patent Document 1, seawater is taken from the bottom of the aquarium and is fed to the foam separation tank. And it is the structure which sludge also enters a foam separation tank with the seawater sent from the bottom part of this water tank.

  The foam separation tank is provided with a sludge discharge pipe for letting out bubbles of only the sludge accumulated at the top, and further, a bubble generator for sending air from a blower is provided at the bottom. Therefore, the sludge that has entered the foam separation tank is accumulated in the upper part as bubbles and discharged from the sludge discharge pipe.

  The seawater that has passed through the foam separation tank enters the filtration tank, and the seawater from which impurities have been removed in this filtration tank is sterilized in the sterilization tank and then circulated back to the water tank.

Moreover, the back washing | cleaning apparatus may be provided in the bottom part of the filtration tank. As this backwashing device, a well-known device that floats or stirs a filter medium in seawater in a filtration tank by compressed air sent by a blower is adopted.
JP 2001-258423 A

  The backwashing device used in the conventional live fish tank apparatus is configured to backwash the entire filter medium in the filter tank at once with air supplied from a blower. If the performance of the blower is inadequate, the cleaning ability is reduced, so a large dedicated blower for backwashing that can float a large amount of filter medium in the filtration tank at a time is required.

  In addition, since a dedicated blower for backwashing is used, the operator has to transport the large blower to the live fish tank apparatus, and the backwashing work is complicated and troublesome.

  In the present invention, a plurality of backwashing devices are arranged in a filtration tank, an arbitrary backwashing device is selected from the plurality of backwashing devices, and an air pump is installed using an existing air pump. The issue is to increase the cleaning capability by concentrating the supply.

The present invention has been made in order to solve the above-described problems, and includes a water tank, a foam separation tank communicating with the water tank, a filtration tank for filtering water treated in the foam separation tank, and the foam separation tank. Water stored in the water tank, comprising an air pump for sending air to the foam separator / disperser provided in the inside and a backwashing device for jetting air to backwash the filter medium accommodated in the filter tank Is a reverse washing structure for the filtration tank in the live fish tank apparatus configured to circulate in the water tank after passing through the filtration tank, and a plurality of the reverse cleaning apparatuses are provided in the lower part of the filtration tank. Each of the backwashing devices is connected to a supply pipe for sending air independently, and a pipe for connecting the air pump and the foam separation / dispersing device is connected to the backwashing device for supplying air to the backwashing device. A cleaning pipe is connected, and the air pump is Serial to supply air to either one of the foam separator disperser or the backwash device, switchably configured, moreover, the the backwash pipe, to allow selectively connecting the supply pipe of the backwash device In addition, one end of a flexible hose having flexibility is connected to the end of the back cleaning pipe, and the other end of the flexible hose is configured to be detachable from the supply pipe of the back cleaning apparatus. is there.

  In the present invention, in a normal operation in which the water in the water tank is processed and circulated, the air pump sends air to the foam separator / disperser of the foam separator.

  When backwashing the filter medium in the filtration tank, switch the air pump air supply to the backwash pipe side, connect the backwash pipe to the selected backwash device supply pipe, and partially filter Concentrate and backwash.

Furthermore, it connects with the supply pipe | tube of another back washing | cleaning apparatus, and reversely wash | cleans sequentially the filter medium of the area | region different from the above. Since the filter medium is partially back-washed in this way, the cleaning ability can be increased with an existing air pump, and the filter medium can be reliably back-washed. In such a case, the flexible hose can be freely bent and easily connected to the supply pipe of any backwashing device.

  In the backwashing structure of the filtration tank of the present invention, a bubble generator is provided in the water tank, and the bubble generator is connected to the air pump by a pipe.

  The present invention concentrates the supply of air from the air pump on the backwashing device selected from among the plurality of backwashing devices, so that even a small air pump can be sufficiently backwashed, and the existing air A pump can be used. As a result, a separate large-sized blower is not required, and the reverse cleaning operation can be easily performed.

  Hereinafter, an embodiment of a live fish tank apparatus according to the present invention will be described with reference to the drawings. 1 to 8 show an embodiment of the present invention.

  4-6, the live fish tank apparatus 1 is made to stock live fish etc. temporarily for several days, and is provided with the tank apparatus main body 7 which has a rectangular shape in planar view and has heat insulation. The water tank apparatus main body 7 includes front and rear side walls 11 and 12, left and right side walls 13 and 14, and a bottom wall 15. The water tank device main body 7 is divided into a water tank 2, a foam separation tank 3, a filtration tank 4, a pump tank 5 and a sterilization tank 6. In addition, the foam separation tank 3, the filtration tank 4, the pump tank 5, and the sterilization tank 6 are arrange | positioned at the one side (right side shown in FIG. 4) of the longitudinal direction of the water tank apparatus main body 7, and comprise the water treatment tank. Yes.

  The water tank 2 and the foam separation tank 3 are partitioned by a partition wall 31 provided between the front and rear side walls 11 and 12 of the water tank apparatus body 7 as shown in FIGS. 3 and 4. An opening (sewage outflow slit) 32 communicating with the water tank 2 and the foam separation tank 3 is formed. Accordingly, the seawater in the water tank 2 flows into the foam separation tank 3 through the sewage outflow slit 32. The sewage outflow slit 32 is formed in the vicinity of the front side wall 11 of the water tank apparatus main body 7.

  As shown in FIG. 7A, a foam separation cover 30 is provided on the upper part of the foam separation tank 3, and one of the foam separation covers 30 is inclined toward the foam separation tank 3. It faces the seawater stored inside. A foam separation / dispersing device 34 is provided at the bottom of the foam separation tank 3. The foam separator / distributor 34 is configured to send air and generate fine bubbles by an air pump (blower) 33 installed on a machine base 8 installed in the water tank apparatus main body 7.

  The blower 33 and the foam separator / distributor 34 are connected by a pipe 70 as shown in FIG. That is, each pipe 70 a extending from the two blowers 33, 33 is connected to the pipe 70. Further, a bubble generator 23 for supplying oxygen to seawater is provided in the water tank 2, and the bubble generator 23 is connected to the pipe 70 via a branch pipe 69. The pipe 70 is provided with on-off valves 72 and 73, and the branch pipe 69 is provided with an on-off valve 74.

  As shown in FIG. 7A, the foam separation cover 30 is connected with a sludge discharge pipe 36 for causing the sludge bubbles 35 generated by the foam separation / dispersing device 34 and accumulated in the upper part of the foam separation tank 3 to flow out. Has been.

  As shown in FIGS. 7 (a) and 7 (b), an upper water collecting device 37 is provided at the upper part of the partition wall 31 to allow the fresh water in the water tank 2 to flow into the foam separation tank 3. The water intake device 37 has an attachment body 37b attached to an opening 38 formed by cutting out the upper portion of the partition wall 31 and a columnar shape provided swingably on the attachment body 37b via a pair of arms 39. The float 37a.

  And this float 37a moves up and down according to the water surface height in the water tank 2, so that the bubbles of sludge and the clean water can be preferentially sucked into the foam separation tank 3. The float 37a floats in the vicinity of the water surface due to buoyancy, and even when the water level changes, the float 37a can always absorb water. Thus, by taking the bottom water and clean water in the water tank 2 into the foam separation tank 3, it can finally be efficiently processed at one place.

  As shown in FIG. 3, the foam separation tank 3 and the filtration tank 4 are partitioned by a partition wall 40 provided between the front and rear side walls 11 and 12 of the water tank apparatus main body 7. The partition wall 40 is formed with a filtration tank inlet 41 that allows the foam separation tank 3 and the filtration tank 4 to communicate with each other.

  The filtration tank 4 is provided with a porous plate 42 provided with through holes of various shapes that allow water to pass therethrough. Various filter media 43 such as sand are stacked and accommodated on the upper surface of the porous plate 42. The partition wall 40 is provided with a flowing water portion (ventilator box) 44 made of a cylindrical body communicating with the filtration tank inlet 41 so as to face the filtration tank 4.

  A mouth portion 45a of a filter 45 formed in a bag shape is detachably attached to the ventilator box 44. The filter main body 45 is made of a synthetic resin net having flexibility, and the filter 45 is located above the filter medium 43.

  A space 47 formed between the bottom of the filtration tank 4 and the perforated plate 42 is communicated with the adjacent pump tank 5, and the seawater filtered by the filter medium 43 flows into the pump tank 5 through the space 47. It is supposed to be. In the space 47, a cleaning air pipe 46 as a back cleaning device is provided. The cleaning air pipe 46 is for reverse cleaning by floating the filter medium 43 with the air fed from the blower 33.

  A plurality of cleaning air pipes 46 are provided at predetermined intervals in the front-rear direction of the bottom of the filtration tank 4. In the present embodiment, four cleaning air pipes 46 are provided at predetermined intervals. Each of the cleaning air pipes 46 is formed by connecting the pipes in a rectangular shape, and nozzle ports (not shown) through which air is ejected are appropriately formed. As shown in FIG. 1, supply pipes 71 a to 71 d are connected to each cleaning air pipe 46, and the upper ends of the supply pipes 71 a to 71 d are close to each other. The upper ends of the supply pipes 71a to 71d are fixed upward, for example, to the machine base 8.

A reverse cleaning pipe 75 is connected to the pipe 70 at a position upstream of the opening / closing valve 72. One end of a flexible hose 76 is connected to the tip of the back cleaning pipe 75. The other end of the flexible hose 76 can be detachably connected by being selectively selected and inserted into the upper ends of the supply pipes 71 a to 71 d of the cleaning air pipe 46. It is preferable that the upper end portions of the supply pipes 71a to 71d are made close to each other and concentrated at a place where the flexible hose 76 of the water tank apparatus main body 7 can be easily attached.
The reverse cleaning pipe 75 is provided with an opening / closing valve 77. By operating the opening / closing valve 77 and the opening / closing valve 72, the foam separating / dispersing device 34 and the bubble generator 23 or the cleaning air pipe 46 are operated. In order to supply air to any one of these, it is configured to be switchable.

  The pump tank 5 is provided with a circulation pump 50 including a vertical axial flow pump for sucking seawater. The machine base 8 is provided with at least one of a cooler 51 and a heater (not shown).

  The machine base 8 is provided with a control device 55 that controls the blower 33, the circulation pump 50, and the cooler 51 (or heater). And the seawater in the pump tank 5 is controlled by the cooler 51 or heated by a heater so as to maintain the set water temperature. The outlet 51 of the circulation pump 50 is extended to the UV sterilization tank 6, and seawater in the pump tank 5 flows into the UV sterilization tank 6 by the circulation pump 50.

  The sterilization tank 6 is provided with a sterilizer 61 having a UV lamp 60 as shown in FIG. The sterilization tank 6 is partitioned from the water tank 2 by the partition wall 31 and communicated with the water tank 2 through a long water pipe 20.

  The water supply pipe 20 is attached to the upper part of the inner surface of the rear side wall 12 and along the longitudinal direction of the water tank apparatus main body 7. In addition, although the height position of the water pipe 20 is not specifically limited, it sets to the height immersed in the seawater stored in the water tank 2. FIG.

  One end of the water supply pipe 20 communicates with the sterilization tank 6, and the other end is closed in contact with or close to the left side wall 14, and a water supply path is formed over the entire length in the longitudinal direction (left-right direction) of the water tank 2. Yes. As shown in FIG. 4, a drain port 21 is formed at the other end of the water pipe 20, and the drain port 21 is provided on a substantially diagonal line in plan view of the water tank 2 with respect to the sewage outflow slit 32. . Moreover, since the drain outlet 21 is located in the upper part of seawater and the sewage outflow slit 32 is located in the bottom part of seawater, the seawater in the water tank 2 can be convected effectively.

  The live fish tank apparatus 1 of the present embodiment has the above configuration, and the operation of the apparatus will be described next.

  First, the circulation pump 50 is started to inject seawater in the pump tank 5 into the sterilization tank 6. The seawater in the pump tank 5 is cooled or heated to a set water temperature (for example, approximately 18 ° C.) by a cooler 51 or a heater and maintained. Further, in such normal operation, the open / close valve 77 of the backwash pipe 75 is closed, and the open / close valve 72, the open / close valve 73, and the open / close valve 74 of the pipe 70 and the branch pipe 69 are opened. Therefore, the air from the blower 33 is sent to the foam separator / distributor 34 and the bubble generator 23 through the pipe 70.

  Bacteria, bacteria and other microorganisms floating in running water inside the sterilization tank 6 are efficiently killed and processed. Seawater that has been treated and maintained at the set water temperature flows into the water pipe 20 from the upper part of the sterilization tank 6. Since this water pipe 20 is immersed in the seawater in the water tank 2 having heat insulation properties, it is not affected by the outside air temperature and there is no risk of heat loss.

  Seawater that has passed through the water pipe 20 is discharged into the water tank 2 from the discharge port 21. Seawater in the aquarium 2 flows into the foam separation tank 3 through a sewage outflow slit 32 at the bottom of the aquarium 2. At this time, the sludge sinking to the bottom of the water tank 2 also flows into the foam separation tank 3 together with the seawater. Further, the water collecting device 37 preferentially sucks the sludge bubbles 35 a on the water surface of the water tank 2 and the water into the foam separation tank 3.

  In the foam separation tank 3, bubbles are generated by the foam separator / disperser 34, and the sludge that flows in along with the bottom water and the sludge that flows in along with the clean water are adsorbed by the bubbles and floated on the water surface. The sludge bubbles 35 accumulated in the upper part of the foam separation tank 3 are discharged to the outside by the sludge discharge pipe 36.

  The large solid sludge mixed in the seawater in the foam separation tank 3 floats substantially in the middle of the seawater due to the bubbles generated from the foam separation / dispersing device 34. Seawater in the foam separation tank 3 passes through the filtration tank inlet 41 and the ventilator box 44, is filtered from the upper part of the next filtration tank 4 to the internal filter medium 43 and the porous plate 42, and flows into the pump tank 5. The seawater controlled to the set water temperature circulates again through the filtration process and the sterilization process.

  Next, the case where the filtration tank 4 is back-washed is demonstrated. First, the open / close valve 72 is closed and the flexible hose 76 is connected to the supply pipes 71a to 71d. For example, it connects with the cleaning air pipe 46a on the left side shown in FIG.

  Further, the opening / closing valve 77 is opened, and the air of the blower 33 is switched and supplied to the cleaning air pipe 46a on the left side. Air is jetted independently only from the cleaning air pipe 46, and the filter medium 43 in the region located above the cleaning air pipe 46 is floated and back-washed.

  Similarly, the other cleaning air pipes 46 adjacent to this cleaning air pipe 46 are also sequentially backwashed. In this way, an arbitrary cleaning air pipe 46 is selected, the filter medium 43 is intensively back-washed, and the cleaning region is divided into a plurality of areas, so that the capacity is small compared to the case where the entire filter medium is back-washed at once. Backwashing is possible with this blower. As a result, the capacity of the existing blower 33 can sufficiently increase the cleaning ability, and a separate large-sized blower is not required. In addition, the seawater in the filtration tank 4 after back washing | cleaning is suitably discharged | emitted from discharge piping (illustration omitted).

  The present invention is not limited to the embodiment described above. For example, the number of the cleaning air pipes 46 is not limited to four, and can be set as appropriate depending on conditions such as the capacity of the blower mounted and the amount of the filter medium 43 stacked.

  The blower may supply air to any one of the cleaning air pipe 46 and the bubble generator 23 or supply air to other components.

  The aquarium 2 may be normal water other than seawater, and is appropriately determined depending on the type of fish or the like put in the aquarium 2.

It is a perspective view which shows the outline of piping of the live fish tank apparatus which concerns on one embodiment of this invention. It is sectional drawing which shows the state of the back washing | cleaning of the filtration tank of the same live fish tank apparatus. It is CC sectional view taken on the line in Fig.7 (a). 1 is an overall schematic plan view of a live fish tank apparatus according to an embodiment of the present invention. It is a whole schematic front view of the same live fish tank apparatus. It is a whole schematic side view of the same live fish tank apparatus. (A) is a cross-sectional side view of the live fish tank apparatus which concerns on one embodiment of this invention, (b) is the BB sectional view taken on the line in (a). It is the sectional view on the AA line in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Live fish tank system 2 Water tank 3 Foam separation tank 4 Filtration tank 5 Pump tank 6 Sterilization tank 7 Water tank apparatus main body 33 Blower (air pump)
34 Foam Separator / Disperser 46 Air piping for cleaning (back cleaning device)
69 Branch pipe 70 Pipe 70a Pipe 71a to 71d Supply pipe 76 Flexible hose

Claims (2)

A water tank, a foam separation tank communicating with the water tank, a filtration tank for filtering water treated in the foam separation tank, and an air pump for sending air to the foam separation / dispersor provided in the foam separation tank; , and a backwash device for ejecting air in order to backwash the filter media housed in the filtration tank, the water stored in the water tank, circulated in the water tank after processing by passing through the filtration tank It is a reverse washing structure of the filtration tank in the live fish tank apparatus configured as follows,
A plurality of the backwashing devices are provided in the lower part of the filtration tank, and each backwashing device is connected to a supply pipe that feeds air independently, and connects the air pump and the foam separator / disperser. The piping is connected with a back cleaning pipe for supplying air to the back cleaning device, and the air pump is switched to supply air to either the foam separation / dispersing device or the back cleaning device. Configured and possible
Moreover, in the backwash pipe, so that it can be selectively connecting the supply pipe of the backwash device, an end portion of the reverse washing tube, one end of a flexible hose having flexibility is connected, the The other end of the flexible hose is configured to be detachable from the supply pipe of the reverse cleaning device .   In the back washing structure of the filtration tank in the live fish tank apparatus according to claim 1, a bubble generator is provided in the tank, and the bubble generator is connected to the air pump by a pipe. The reverse washing structure of the filtration tank in the live fish tank apparatus characterized by this.

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