KR102239381B1 - Auto purifying system of biofloc breeding water using cartridge filter - Google Patents

Abstract

The present invention is installed in the biofloc indoor aquaculture on land, and supplies the breeding water discharged from the aquaculture tank to the breeding water filter and oxygen dissolver, respectively, to remove various solids and foreign substances contained in the breeding water, while increasing the amount of dissolved oxygen in the breeding water. It relates to a filtration system capable of being resupplied to the culture tank by making the flow direction of the breeding water through the breeding water filter in an up and down direction rather than in the left and right directions, and to the upper and lower parts of the breeding water filter. A funnel-type hopper is respectively installed on the side, while a plurality of cartridge filters equipped with a square plate-shaped filter medium having a predetermined thickness are inserted and stacked in a horizontal direction at regular intervals in the inside of the breeding water filter, and the cartridge filter In the front opening of the breeding water filter provided for insertion of the filter, a waterproof cover that is in close contact with the front end of each cartridge filter is detachably assembled and installed, so that the total area of the filter material provided for each cartridge filter is sufficiently utilized as the filtering area of the breeding water. The filtering system can be operated without unnecessary operation as the filter medium can be further improved and the working cycle required for cleaning or maintenance of the filter medium or replacement of the filter medium can be extended as much as possible. It relates to an automatic filtration system for biofloc breeding water using a cartridge filter that enables efficient filtration of breeding water and safe growth of farmed fish under conditions that minimize disruption.

Description

Automatic purifying system of biofloc breeding water using cartridge filter}

The present invention is installed in the biofloc indoor aquaculture on land, and supplies the breeding water discharged from the aquaculture tank to the breeding water filter and oxygen dissolver, respectively, to remove various solids and foreign substances contained in the breeding water, while reducing the amount of dissolved oxygen in the breeding water. It relates to an automatic filtration system for biofloc breeding water using a cartridge filter that can be increased and resupplied to aquaculture tank.

In general, in indoor aquaculture sites on land, relatively large amounts of fish are cultivated at high density based on the limited space and quantity inside the aquaculture tank, and due to this, not only various solid components such as wastes of feed and excrement of farmed fish are used. In addition, foreign substances such as protein components, ammonia components and carbon dioxide components generated during the metabolism of farmed fish accumulate in the breeding water within a very short time, and the breeding water is easily contaminated.

Due to the above factors, in indoor farms on land, in addition to filtration treatment of various solid components including feed waste or excrement from farmed fish, it is intended to reduce the amount of use and discharge of breeding water and increase the amount of dissolved oxygen in the breeding water. Oxygen dissolution treatment is essential.In normal cases, part of the breeding water discharged from the aquaculture tank is supplied to a breeding water filter equipped with a filter medium, and the rest of the breeding water is supplied with the treated water passed through the breeding water filter. A filtration system is used in which the final treated water that has passed through the oxygen dissolver is fed back to the aquaculture tank after being supplied to the oxygen dissolver.

In addition, recently, a biofloc technology aquaculture system using microorganisms is attracting attention.Unlike the existing circulation filtration farming method, the biofloc aquaculture system is ammonia generated during the aquaculture process without water treatment facilities. By decomposing particles such as feed debris, excrement, and mortality using heterotrophic bacteria and autotrophic bacteria, it achieves the purifying function of the breeding water, and at the same time, the particles are consumed by farmed fish. It is an eco-friendly aquaculture technology that reduces the amount of feed required by converting it to food such as amino acids, low molecular weight proteins, and new organic substances that can be used.When using this biofloc culture system, it reduces the need for water exchange through the creation of a microbial circulating ecosystem. Not only can environmental pollution be prevented, but also energy required for water exchange and loss of feed can be greatly reduced, and the risk of disease infection is significantly lowered because the inflow of viruses and bacteria from the outside is restricted, and high-density farming is possible even in narrow spaces. It becomes possible.

As described above, the breeding water filter used in the conventional breeding water filtration system or biofloc aquaculture system performs filtration treatment of the breeding water for a certain period of time by laying a filter material such as gravel, sand or sponge on the bottom of the filter water tank, The method of washing the filter medium and using it again has been applied, but in this method, the operation of removing the filter medium from the filter tank and washing it is very cumbersome and difficult, and it takes a relatively long time to clean the filter material and use the filter tank again. There was a problem that the normal operation of the farm was impossible.

In order to compensate for the above problems, a plurality of cartridge filters in the shape of a square plate are placed in a filtration tank in the shape of a square tank provided at the front and rear sides of the breeding water inlet and discharge pipes at regular intervals. A breeding water filter inserted in a vertical direction is known, and this type of breeding water filter can very easily and easily separate and clean the cartridge filter from the filtering water tank, and if necessary, the direction opposite to the flow direction of the breeding water. The backwashing method, which supplies washing water by means, also provides an advantage that can be utilized.

However, in the conventional cartridge filter breeding water filter as described above, since the breeding water is passed in the horizontal direction through each of the cartridge filters vertically erected in the internal space of the filtering water tank, the outlet from the inlet side of the filtering water tank is applied. Due to the characteristic that solids settle down toward the side, only the bottom area, which is about 20 to 30% of the total area of the filter medium constituting the cartridge filter, is used as the actual filtering area of the solids component, and the remaining 70 corresponding to the upper side. As the ~80% portion is not utilized as a filtration area, the filtration performance of the breeding water is greatly deteriorated, and there is a problem that the working cycle required for cleaning, maintenance, or replacement of the filtration material is very short.

On the other hand, in the case of the oxygen dissolver applied to the conventional breeding water filtration system, aeration is performed in the breeding water by arranging a plurality of bubble dispersers on the inner bottom surface of the aeration reactor through which the breeding water passes. In the case of this aeration method, as the air bubbles dispersed in the breeding water rise at a very high speed, the air bubbles and air bubbles dispersed in the breeding water compared to the power consumption required to operate a number of bubble dispersers. Since the contact efficiency and solubility thereof by the hydrodynamic residence time with the breeding water are very low, there is a somewhat uneconomical problem in terms of increasing the amount of dissolved oxygen.

Korean Patent Registration No. 10-1382395 Korean Patent Registration No. 10-1799761

The present invention was conceived to solve the conventional problems as described above, and the flow direction of the breeding water through the breeding water filter is made up and down rather than in the left and right directions, and the upper and lower parts of the breeding water filter A funnel-type hopper is respectively installed on the side, while a plurality of cartridge filters equipped with a square plate-shaped filter medium having a predetermined thickness are inserted and stacked in a horizontal direction at regular intervals in the inside of the breeding water filter, and the cartridge filter In the front opening of the breeding water filter provided for insertion of the water filter, a waterproof cover that is in close contact with the front end of each cartridge is detachably assembled, so that the total area of the filter material provided in each cartridge filter is sufficient as the filtering area of the breeding water. The biotechnology using a cartridge filter that allows it to be utilized effectively and further improves the filtration performance of breeding water in the filter medium and extends the working cycle required for cleaning, maintenance, or replacement of the filter medium as much as possible. The main technical task is to provide an automatic filtration system for flock breeding water.

In addition, in the present invention, at least two rectangular cylindrical casings having a predetermined height are butted to each other, but the oxygen dissolving chamber is divided by at least two or more diaphragms along the height direction of each casing, and each diaphragm has a constant A water flow resistance plate that protrudes obliquely in the upper or lower direction is formed at intervals, and the part of the partition facing the water flow resistance plate is connected to the oxygen injection pipe by an oxygen dissolver formed as an opening for the passage of breeding water, respectively. While allowing the breeding water to flow in a zigzag manner along with the air bubbles in the casing, the collision action with the water flow resistance plate provided in each diaphragm and the diffusion effect in the oxygen dissolving chamber are continuously repeated. Another technology is the automatic filtration system of biofloc breeding water using a cartridge filter that can greatly increase the amount of dissolved oxygen in the breeding water based on the same power consumption by sufficiently securing the hydrodynamic residence time between the air bubbles and their contact efficiency and solubility. Make it an assignment.

In the present invention as a means for solving the above technical problem, the breeding water discharge pipe extending from the aquaculture tank through the breeding water pump is branched into the first branch pipe and the second branch pipe, and the first branch pipe is a breeding water filter. The second branch pipe is connected to and installed with the oxygen dissolving unit, and the treated water discharge pipe extending from the breeding water filter is connected to the second branch pipe at the inlet side of the oxygen dissolving unit. In the filtering system in which the treated water supply pipe extending from the outlet of the machine is connected to the aquaculture tank, the breeding water filter is a filter casing in which a funnel-shaped upper hopper and a lower hopper are connected to the upper and lower portions of the hexahedral-shaped main casing. , At least two cartridge filters inserted and installed in the inner space of the main casing, and a waterproof cover detachably assembled and installed on the opened front surface of the main casing, each cartridge filter having a predetermined thickness The frame is connected and installed along the edge side of the filter medium having a square plate shape, or the filter medium is inserted and installed in a rectangular storage case with an open top surface and a perforated plate or mesh net. Inside both sides, at least two rows of storage frames for inserting and stacking cartridge filters in a horizontal direction are provided, and the first branch pipe is connected to the upper hopper of the breeding water filter and installed at the center of the upper hopper, and the treated water discharge pipe Is characterized in that it is connected and installed at the lower center of the lower hopper of the breeding water filter, characterized in that a waterproof packing elastically in close contact with the waterproof cover is installed on the front end of each cartridge filter, and the waterproof packing of the cartridge filter A handle groove is provided, and the waterproof cover is a transparent acrylic plate, and a drain pipe having an opening/closing valve is connected to the treated water discharge pipe.

On the other hand, the oxygen dissolver includes at least two rectangular casings having a predetermined height, and at least two or more diaphragms disposed inside each casing at regular intervals along the height direction of the casing The oxygen dissolving chamber is formed by a partition, and a water flow resistance plate protruding obliquely upward or downward at a predetermined interval is formed on each of the partition plates, and a portion of the partition facing the water flow resistance plate is an opening for the passage of breeding water. The second branch pipe is connected to the casing corresponding to the inlet side of the oxygen dissolver, while the treated water supply pipe is connected to the casing corresponding to the outlet side of the oxygen dissolver, and the oxygen dissolver Oxygen injection pipes are connected to the inlet of the inlet or the inlet and outlet sides of the oxygen dissolver, and each casing is a zigzag type from the inlet side to which the second branch pipe is connected to the outlet side to which the treated water supply pipe is connected. It is installed in close contact to form a flow path of breeding water, characterized in that a communication hole is formed in a contact portion between the casings to provide a rotating flow path of breeding water, and a breeding water discharge pipe corresponding to the inlet side of the breeding water pump A washing water supply pipe is connected and installed with a three-way solenoid valve interposed therebetween, and a third branch pipe is connected and installed with a three-way solenoid valve interposed in the breeding water discharge pipe corresponding to the outlet side of the breeding water pump. The branch pipe is connected to the treated water discharge pipe with a three-way solenoid valve interposed therebetween, and a three-way solenoid valve is also installed on the outlet side of the first branch pipe, while a breeding water filter is provided on the three-way solenoid valve of the first branch pipe. The breeding water inlet pipe and the washing water discharge pipe from the breeding water filter are connected to each other, and the drain pipe is connected to the treated water discharge pipe at the outlet side of the three-way solenoid valve of the treated water discharge pipe.

According to the present invention as described above, the breeding water is allowed to flow in the up and down directions from the funnel-shaped upper hopper with a narrow upper and a wide lower part through a funnel-shaped lower hopper with a wide upper and a narrow lower, while a square plate at the center thereof. By stacking and arranging a plurality of shaped cartridge filters in a horizontal direction, the entire area of the filter material provided in each cartridge filter can be sufficiently utilized as a filtering area for various solids or foreign substances contained in the breeding water. Through this, the filtration performance of breeding water is further improved, and the working cycle required for cleaning, maintenance, or replacement of the filter medium can be extended to the maximum as compared to the conventional case.

In particular, if the waterproof cover assembled and installed on the front entrance side of the breeding water filter is made of transparent acrylic material, the user directly checks the condition of the filter material of the cartridge filter with the naked eye and cleans, maintains or replaces the filter material, including backwashing. It provides the effect of performing the work immediately at the appropriate time, and the backwash work according to the supply of washing water also utilizes the first branch pipe (or breeding water inlet pipe) and treated water discharge pipe connected to the top and bottom of the breeding water filter. This provides the effect of evenly washing the entire area of the filter medium of the cartridge filter and discharging all solids and foreign substances through the washing water discharge pipe, and ultimately, efficient filtering treatment of breeding water under the condition that minimizes unnecessary shutdown of the filtration system. And the safe growth of farmed fish is possible.

In addition, a rectangular cylindrical casing in which an oxygen dissolving chamber is partitioned along its height direction by a plurality of diaphragms is butt in the left, right and/or front and rear directions so that each casing forms a zigzag flow passage of the breeding water. , As the diaphragm is connected with an oxygen injection pipe, an oxygen dissolver having a water flow resistance plate protruding inclined upward or downward at a regular interval is used, so that the breeding water flows through each casing in a zigzag manner along with the air bubbles. During the process, the collision action with the water flow resistance plate and the diffusion action in the oxygen dissolution chamber are continuously repeated.Through this, the hydrodynamic residence time between the breeding water and the bubble component, and its contact efficiency and solubility are sufficiently secured to ensure the same power consumption. As a standard, the amount of dissolved oxygen in breeding water can be greatly increased, and it has the effect of providing an economical and rational filtration system that can be widely applied to circulation filtration systems or biofloc systems.

1 is a piping diagram of an automatic filtration system for biofloc breeding water using a cartridge filter according to the present invention.
Figure 2 is a perspective view of the appearance of the automatic filtration system of biofloc breeding water using a cartridge filter according to the present invention.
Figure 3 is a front view of Figure 2;
Figure 4 is a perspective view of the main part of the breeding filter used in the present invention.
Figure 5 is an exploded perspective view of Figure 4;
6 is a front view showing the filter casing of the breeding water filter.
Figure 7 is a side cross-sectional view of Figure 4;
8 is an enlarged view of a portion "A" of FIG. 7;
9 is an enlarged view of a portion "B" of FIG. 7;
10 is an exploded perspective view showing another embodiment of the cartridge filter used in the present invention.
11 is a partially cut-away perspective view of the oxygen dissolver used in the present invention.
Figure 12 is a side cross-sectional view of Figure 11;
13 is a comparative graph measuring dissolved oxygen (DO) in breeding water before and after the application of an oxygen dissolver.
14 is a comparative graph measuring the total amount of suspended matter (TSS) in the breeding water according to the presence or absence of the application of the automatic breeding water filtration system of the present invention.

Hereinafter, the present invention for achieving the above object will be described in detail with reference to the accompanying drawings.

The automatic filtration system for biofloc breeding water using a cartridge filter according to the present invention is a breeding water discharge pipe 5 extending from the aquaculture tank 1 through the breeding water pump 2 as shown in FIGS. 1 to 3, respectively. The first branch pipe 6 and the second branch pipe 7 are branched, and the first branch pipe 6 is connected to the breeding water filter 3, while the second branch pipe 7 is It is connected to the oxygen dissolver (4), and the treated water discharge pipe (9) extending from the breeding water filter (3) is connected to the second branch pipe (7) at the inlet side of the oxygen dissolver (4). , The treated water supply pipe 11 extending from the outlet of the oxygen dissolver 4 is connected to the aquaculture tank 1 and is installed based on a basic configuration.

It is preferable to install a check valve (CV) on each piping line at a position prior to the point where the second branch pipe 7 and the treated water discharge pipe 9 are connected to each other. In addition, the treated water discharge pipe 9 has an opening/closing valve (V) so that all the breeding water stored in the breeding water filter 3 can be removed to the outside when necessary for replacement of the filter medium installed inside the breeding water filter 3. It is preferable to connect and install a drain pipe (16) having, and the treated water supply pipe (11) extending from the outlet side of the oxygen dissolver (4) is branched into two piping lines having an on-off valve (V). It is desirable to connect it to the aquaculture tank (1), but to utilize one of the piping lines as a spare line (spare line).

The filtration system 10 according to the present invention allows one system to be connected and installed in parallel with several aquaculture tanks 1, so that the breeding water discharged from several aquaculture tanks 1 with one filtration system 10 It is more advantageous in terms of efficient operation of the aquaculture to perform the filtration treatment of the farm in a batch, and from this point of view, it is not possible to remove the filter media inserted into the breeding water filter (3) to the outside of the breeding water filter (3). In addition, a backwash line is additionally installed to maximize the use period and replacement cycle of the filter material, as the filter material can be backwashed by supplying the washing water in the direction opposite to the flow direction of the breeding water.

In the backwash line, a washing water supply pipe 13 is connected and installed with a three-way solenoid valve (EV) interposed on the breeding water discharge pipe 5 corresponding to the inlet side of the breeding water pump 2, and the three-way solenoid valve It is preferable to install a check valve (CV) on the breeding water discharge pipe (5) corresponding to the inlet position of the (EV), and the breeding water discharge pipe (5) corresponding to the outlet side of the breeding water pump (2) The third branch pipe 14 is connected and installed with the three-way solenoid valve (EV) interposed therebetween, and the third branch pipe 14 is connected to the treated water discharge pipe 9 with the three-way solenoid valve (EV) interposed therebetween. It is connected and installed, and a three-way solenoid valve (EV) is also installed on the outlet side of the first branch pipe (6), while the three-way solenoid valve (EV) of the first branch pipe (6) is connected to the breeding water filter (3). The breeding water inlet pipe 8 and the washing water discharge pipe 15 from the breeding water filter 3 are connected to each other.

Therefore, the flow of the breeding water discharged from the aquaculture tank 1 is formed in a path formed by a solid arrow in FIG. 1, and the flow of washing water for backwashing the filter medium installed inside the breeding water filter 3 is shown in FIG. It is composed of a path formed by a dotted arrow, and the control of the three-way solenoid valve (EV) for filtering and backwashing of breeding water is performed by the controller 17 installed together with the filtration system 10 as shown in FIGS. 2 and 3. It is carried out by, and the filtration system 10 including the controller 17 is preferably installed in a module type on the upper surface of the base by placing a separate device base 18 that can be moved and fixed in position. In the process of backwashing, solids and foreign matters removed from the filter medium are discharged to the outside through the washing water discharge pipe 15.

The breeding water filter (3) constituting the first main part of the present invention is a funnel-shaped upper hopper (21) and a lower part of the main casing (20) having a hexahedron shape as shown throughout FIGS. 4 to 9 A filter casing 19 with a hopper 22 connected to each other, a cartridge filter 25 of at least two (three in the drawing) inserted and installed in the inner space of the main casing 20, and the main casing ( It is made by including a waterproof cover 23 that is detachably assembled and installed on the opened front surface of 20).

The upper hopper 21 forms a funnel shape with a narrow upper part and a wide lower part, and the lower hopper 22 forms a funnel shape with a wide upper part and a narrow lower part, and the first branch pipe 6 (or breeding water inlet pipe ( 8)} is connected and installed at the upper center of the upper hopper 21 of the breeding water filter 3, and the treated water discharge pipe 9 is connected and installed at the lower center of the lower hopper 22 of the breeding water filter 3, At the periphery of the front entrance of the main casing 20 of the breeding water filter (3), a mounting flange 31 in the shape of a square border for assembling the waterproof cover 23 is provided, and the edge and mounting of the waterproof cover 23 The flange 31 is provided with a fastening hole 29 for fastening the mounting bolt 24, and the mounting bolt 24 preferably has a bolt head portion capable of performing a handle function in parallel.

In addition, each of the cartridge filters 25 may be exemplified in that a frame frame 32 having a "c"-shaped cross-section is connected and installed along the edge side of the filter medium 28 in the shape of a square plate having a predetermined thickness. If necessary, a filter medium 28 may be inserted and installed inside a rectangular storage case 32a having an open top surface and a bottom surface formed of a perforated plate 32b or a mesh network as shown in FIG. 10. It should be noted that any type of cartridge filter 25 may be used as long as it can be supported so that the breeding water and washing water can pass through the plate-shaped filter medium 28.

If the filter medium 28 is capable of removing various solids or foreign substances, various materials such as sponge or non-woven fabric may be used. In particular, a bio-sponge filter capable of culturing microorganisms is preferable, and a cartridge filter 25 located at the lower side ) Of the filter medium 28 is higher in filtration performance than the filter medium 28 of the cartridge filter 25 located on the upper side thereof, and the cartridge filter 25 is placed inside the both sides of the main casing 20 in a horizontal direction. At least 2 rows (列) or more (3 rows on the drawing) of storage frames 30 are provided so that they can be inserted and stacked, and the cartridge filter 25 is at least 2 in consideration of the filtration performance of the filter medium 28. It is most preferred to use within the range of up to 5 dogs.

As an additional matter, by installing a waterproof cover (23) and a rubber waterproof packing (27) elastically in close contact with the waterproof cover (23) on the front end of each cartridge filter (25), it is waterproof to the mounting flange (31) of the main casing (20). When assembling the cover 23, it is preferable that the rear surface (right side in the drawing) of the waterproof cover 23 is elastically pressed into close contact with the waterproof packing 27 of the cartridge filter 25, and from the same point of view, the cartridge filter By making the edge side of 25 contact the inner side of the main casing 20 as much as possible, it is possible to block the situation where the breeding water escapes to the edge side of the cartridge filter 25 without passing through the filter medium 28 of the cartridge filter 25. To be there.

In addition, in the waterproof packing 27 of the cartridge filter 25, the operation of inserting the cartridge filter 25 into the inside of the breeding water filter 3 or removing the cartridge filter 25 from the breeding water filter 3 For convenience, it is preferable to form the handle groove 26 inwardly concave, and the waterproof cover 23 is made of a transparent acrylic plate material so that the user can visually see the state of the filter medium 28 of the cartridge filter 25 from the outside. It is desirable to check directly with the filter medium 28 so that cleaning, maintenance, or replacement work including backwashing of the filter medium 28 can be performed immediately at an appropriate time.

The oxygen dissolver 4 as a component constituting the second main part of the present invention is a first casing 33 and a second casing 34 and a second casing 33 having a predetermined height, as shown in FIGS. 11 and 12, respectively. It is composed of a total of four rectangular casings including the 3 casing 35 and the 4 casing 36, and the first casing 33 and the second casing 34 are closely installed to the left and right, while the The third casing 35 and the fourth casing 36 are installed in close contact with the rear surfaces of the first casing 33 and the second casing 34, respectively. It provides advantageous advantages for volume reduction and simplification of piping lines.

Accordingly, the second branch pipe 7 is connected to the upper end of the first casing 33 corresponding to the inlet side of the oxygen dissolver 4, and the treated water supply pipe 11 is connected to the oxygen dissolver 4 ) Is connected to the upper end of the second casing 34 corresponding to the outlet side of the first casing (33) or the front of the first casing (33) and the second casing (34). An oxygen injection pipe 12 is connected and installed on the side upper surface as shown in FIG. 1, and the oxygen injection pipe 12 extends from a blower, air compressor, or high-pressure oxygen tank, which is not shown.

In addition, in each of the casings 33, 34, 35, and 36, at least two or more are disposed at regular intervals along the height direction of the casings 33, 34, 35, and 36 ( The oxygen dissolving chamber 37 (11 in the drawing) is partitioned by the partition plates 38 of 10) in the drawing, and the water flow protruding obliquely in the upper or lower direction at regular intervals in each of the partition plates 38 A resistance plate 39 is formed, and a portion of the partition plate 38 facing the water flow resistance plate 39 is formed as an opening for passage of breeding water.

And, the flow path of the breeding water through each casing (33, 34, 35, 36) to form a zigzag path of the vertical direction of the first casing (33) and the third casing (35). In the lower side oxygen dissolving chamber 37 and the lower side oxygen dissolving chamber 37 of the second casing 34 and the fourth casing 36, communication holes 40 for breeding water are respectively formed, while the third casing The upper end surfaces of the 35 and the fourth casing 36 are connected to each other by a turning chamber 41, and the turning chamber 41 is preferably installed in a rectangular case with an empty inside.

Therefore, the breeding water flowing into the first casing 33 through the second branch pipe 7 descends along the inner space of the first casing 33, and then the communication hole at the bottom of the first casing 33 It is raised along the inner space of the third casing 35 through 40, and the raised breeding water is lowered again along the inner space of the fourth casing 36 through the turning chamber 41, and then the fourth After re-rising along the inner space of the second casing 34 through the communication hole 40 at the bottom of the casing 36, a zigzag-type path is formed that exits the treated water supply pipe 11.

As described above, the collision action with the water flow resistance plate 39 and the oxygen dissolving chamber 37 in the process of flowing the breeding water in a zigzag manner along with the air bubbles through the respective casings 33, 34, 35, and 36 as described above. The diffusion action in the breeding water is continuously repeated, and through this, the amount of dissolved oxygen in the breeding water can be greatly increased by sufficiently securing the hydrodynamic residence time between the breeding water and the air bubbles, and the contact efficiency and solubility thereof. It can also be confirmed in the comparative graph of Fig. 13, in which the concentration of dissolved oxygen (DO) in the breeding water was measured before and after (4) was substantially applied.

The dissolved oxygen concentration after the installation of the oxygen dissolver 4 shown in FIG. 13 is at a much higher level based on the same power consumption even when compared to the conventional case in which a bubble disperser is installed in the aeration reactor. Likewise, it can be seen that the filtration system 10 (blue graph on the drawing) of the present invention including the breeding water filter significantly reduced the total amount of suspended matter (TSS) in the breeding water compared to the existing biofloc system (red graph on the drawing). have.

In the drawing, it is assumed that the oxygen dissolver (4) was manufactured using a total of four casings (33) (34) (35) (36), but the indoor conditions and requirements of the farm in which the filtration system 10 of the present invention is installed. It is also possible to apply at least two to five or more casings according to the dissolved oxygen concentration, and the number of oxygen dissolving chambers 37 partitioned in each casing 33, 34, 35, 36 and water flow resistance It should be noted that in the case of various other items such as the installation interval of the plate 39 and the pipe connection part, it is possible to arbitrarily adjust it according to the operating conditions of the farm.

In addition, it is preferable that each piping line constituting the breeding water filter 3, the oxygen dissolver 4, and the filtration system 10 of the present invention is manufactured using a plastic material having excellent corrosion resistance and light, and the opening/closing valve (V) and the three-way solenoid valve (EV) is preferably a ball valve having excellent watertight performance, and each three-way solenoid valve (EV) will be connected to the controller 17 by a cable line not shown, the above The controller 17 will be provided with input means (switches or buttons) necessary for the overall operation and automatic operation of the filtration system 10 according to the present invention together with a digital indicator or display (monitor), and the oxygen dissolver 4 May be replaced with an existing aeration reactor, in this case, the oxygen injection pipe 12 will be connected to the bubble disperser inside the aeration reactor.

According to the present invention made of the above configuration, the breeding water flows in the up and down directions from the funnel-shaped upper hopper 21 with a narrow upper portion and a wide lower portion through the funnel-shaped lower hopper 22 with a wide upper portion and a narrow lower portion. Meanwhile, a plurality of cartridge filters 25 having a rectangular plate shape are stacked in the horizontal direction in the center, so that the entire area of the filter material 28 provided in each cartridge filter 25 is contained in the breeding water. The filtering area of various solids or foreign matters can be sufficiently utilized, and through this, the filtering performance of the breeding water is further improved, and the working cycle required for cleaning or maintenance of the filter medium 28 or replacement of the filter medium 28 is improved. Compared to the conventional case, it can be extended to the maximum.

In particular, when the waterproof cover 23 assembled and installed on the front entrance side of the breeding water filter 3 is made of a transparent acrylic material, the user can directly check the state of the filter medium 28 of the cartridge filter 25 with the naked eye. Cleaning, maintenance, or replacement including backwashing of the filter medium 28 can be performed immediately at an appropriate time, and backwashing according to the supply of washing water is also the first minute connected to the top and bottom of the breeding water filter (3). Even washing work over the entire area of the filter medium 28 of the cartridge filter 25 and solids through the washing water discharge pipe 15 by using the engine 6 {or breeding water inlet pipe 8} and the treated water discharge pipe 9 as it is It is possible to discharge the entire amount of and foreign matter, and ultimately, efficient filtration treatment of breeding water and safe growth of farmed fish are possible under conditions that minimize unnecessary shutdown of the filtration system 10.

In addition, a rectangular barrel casing in which the oxygen dissolving chamber 37 is partitioned along the height direction by a plurality of diaphragms 38 is butted in the left, right and/or front and rear directions so that each casing is zigzaged by the breeder. While forming a flow path, an oxygen dissolver (4) formed with a water flow resistance plate (39) protruding obliquely upward or downward at regular intervals on the partition plate (38) is used by connecting it with the oxygen injection pipe (12). Accordingly, the collision action with the water flow resistance plate 39 and the diffusion action in the oxygen dissolving chamber 37 are continuously repeated in the process of flowing the breeding water through each casing in a zigzag manner along with the air bubbles component. Through this, it is possible to significantly increase the amount of dissolved oxygen in the breeding water based on the same power consumption by sufficiently securing the hydrodynamic residence time between the breeding water and the air bubbles, and its contact efficiency and solubility, and can be widely applied to circulation filtration systems or biofloc systems. It is possible to provide the filtration system 10 in an economical and reasonable manner.

1: aquaculture tank 2: breeding water pump 3: breeding water filter
4: oxygen dissolver 5: breeding water discharge pipe 6: first branch pipe
7: 2nd branch engine 8: breeding water inflow pipe 9: treated water discharge pipe
10: filtration system 11: treated water supply pipe 12: oxygen injection pipe
13: washing water supply pipe 14: third branch pipe 15: washing water discharge pipe
16: drain pipe 17: controller 18: device base
19: filter casing 20: main casing 21: upper hopper
22: lower hopper 23: waterproof cover 24: mounting bolt
25: cartridge filter 26: handle groove 27: waterproof packing
28: filter material 29: fastening hole 30: storage frame
31: mounting flange 32: frame frame 32a: storage case
32b: perforated plate 33: first casing 34: second casing
35: 3rd casing 36: 4th casing 37: oxygen dissolving chamber
38: diaphragm 39: water flow resistance plate 40: communication hole
41: turning chamber V: on-off valve CV: check valve
EV: Three-way solenoid valve

Claims (10)

The breeding water discharge pipe (5) extending from the aquaculture tank (1) through the breeding water pump (2) is branched into the first branch pipe (6) and the second branch pipe (7), and the first branch pipe (6) Is connected to the breeding water filter (3), while the second branch pipe (7) is connected to the oxygen dissolver (4), and the treated water discharge pipe (9) extending from the breeding water filter (3) is The second branch pipe (7) is connected and installed at the inlet side of the oxygen dissolver (4), and the treated water supply pipe (11) extending from the outlet of the oxygen dissolver (4) is connected to the aquaculture tank (1). In the filtration system 10,
The breeding water filter (3) includes a filter casing 19 having a funnel-shaped upper hopper 21 and a lower hopper 22 connected to the upper and lower portions of the hexahedral main casing 20, and the main casing 20 ), and at least two cartridge filters 25 inserted and installed in the inner space of the main casing 20, and a waterproof cover 23 that is detachably assembled and installed on the opened front surface of the main casing 20,
Each of the cartridge filters 25 has an edge frame 32 connected along the edge side of the filter medium 28 in the shape of a square plate having a predetermined thickness, or the upper surface is opened and the bottom surface is a porous plate 32b. Alternatively, the filter medium 28 is inserted and installed inside the rectangular storage case 32a formed of a mesh network, and at least two rows for inserting and stacking the cartridge filters 25 in the horizontal direction inside both sides of the main casing 20 (列) or more storage frames 30 are provided,
The first branch pipe 6 is connected to the upper center of the upper hopper 21 of the breeding water filter 3, and the treated water discharge pipe 9 is the lower central part of the lower hopper 22 of the breeding water filter 3 Biofloc breeding water automatic filtration system using a cartridge filter, characterized in that connected to and installed. The automatic filtration system of biofloc breeding water using a cartridge filter according to claim 1, wherein a waterproof packing (27) that is elastically attached to the waterproof cover (23) is installed on the front end of each of the cartridge filters (25). . [3] The automatic filtration system for biofloc breeding water using a cartridge filter according to claim 2, wherein a handle groove (26) is provided in the waterproof packing (27) of the cartridge filter (25). The automatic filtration system for biofloc breeding water using a cartridge filter according to claim 1, wherein the waterproof cover (23) is a transparent acrylic plate. The automatic filtration system for biofloc breeding water using a cartridge filter according to claim 1, wherein a drain pipe (16) having an opening/closing valve (V) is connected to the treated water discharge pipe (9). The method of claim 1, wherein the oxygen dissolver (4) comprises at least two rectangular casings having a predetermined height, and arranged at regular intervals within each casing along the height direction of the casing. The oxygen dissolving chamber 37 is partitioned by at least two diaphragms 38,
Each of the diaphragms 38 is formed with a water flow resistance plate 39 that protrudes obliquely in the upper or lower direction at regular intervals, and a portion of the diaphragm 38 facing the water flow resistance plate 39 passes the breeding water. It is formed as an opening for,
The second branch pipe 7 is connected to a casing corresponding to the inlet side of the oxygen dissolver 4, while the treated water supply pipe 11 has a casing corresponding to the outlet side of the oxygen dissolver 4 and An automatic filtration system for biofloc breeding water using a cartridge filter, which is connected and installed, and an oxygen injection pipe 12 is connected to the inlet of the oxygen dissolver 4 or at the inlet and outlet sides of the oxygen dissolver 4. The method of claim 6, wherein each casing is closely installed to form a zigzag breeding water flow path from the inlet side to which the second branch pipe (7) is connected to the outlet side to which the treated water supply pipe (11) is connected, Biofloc breeding water automatic filtration system using a cartridge filter, characterized in that a communication hole (40) is formed in the close contact portion between the casings to provide a rotating flow path of the breeding water. The method of claim 7, wherein the oxygen dissolver (4) is composed of a total of four casings including a first casing (33), a second casing (34), a third casing (35) and a fourth casing (36). The first casing 33 and the second casing 34 are closely attached to the left and right, while the third casing 35 and the fourth casing 36 are provided with a first casing 33 and a second casing. It is installed in close contact with each of the rear surfaces of the casing 34,
The second branch pipe 7 and the treated water supply pipe 11 are connected to the top surfaces of the first casing 33 and the second casing 34, respectively, and the communication hole 40 is a first casing 33 ) And the lower side oxygen dissolving chamber 37 of the third casing 35 and the second casing 34 and the lower side oxygen dissolving chamber 37 of the fourth casing 36, respectively, while the third casing (35) and the upper surface of the fourth casing (36) is connected and installed by a turning chamber (41),
The water flow resistance plate 39 is an automatic filtration system for biofloc breeding water using a cartridge filter, characterized in that the water flow resistance plate 39 is formed to protrude obliquely in the direction of progression of the breeding water through the casing. The washing water supply pipe (13) according to any one of claims 1 to 8, wherein a three-way solenoid valve (EV) is interposed in the breeding water discharge pipe (5) corresponding to the inlet side of the breeding water pump (2). This connection is installed, and a third branch pipe 14 is connected and installed in a state where a three-way solenoid valve (EV) is interposed in the breeding water discharge pipe 5 corresponding to the outlet side of the breeding water pump 2,
The third branch pipe 14 is connected to the treated water discharge pipe 9 with a three-way solenoid valve (EV) interposed therebetween, and a three-way solenoid valve (EV) is also installed at the outlet side of the first branch pipe 6 Meanwhile, the breeding water inlet pipe 8 to the breeding water filter 3 and the washing water discharge pipe 15 from the breeding water filter 3 are connected to the three-way solenoid valve (EV) of the first branch pipe 6, respectively. Biofloc breeding water automatic filtration system using a cartridge filter, characterized in that installed. The biofloc using a cartridge filter according to claim 9, wherein the drain pipe (16) is connected to the treated water discharge pipe (9) at an outlet side of a three-way solenoid valve (EV) of the treated water discharge pipe (9). Automatic filtration system for breeding water.

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