A marine tidal tank

Abstract

This utility model discloses a tidal tank, including a main tank, an overflow connecting pipe, a bottom filtration system, and a water circulation system. The main tank is equipped with a partition plate dividing it into a water zone and at least one land zone. The land zone includes a tidal pool and an elevated filtration isolation layer. Above the elevated filtration isolation layer forms a land area isolated from the tidal pool, and below the elevated filtration isolation layer forms a water circulation zone. The inlet end of the overflow connecting pipe extends into the water zone and is below the water level, while the outlet end extends into the land zone and is above the tidal pool. The overflow connecting pipe is equipped with a control valve to control its opening and closing. The bottom filtration system is located below the main tank, and the water circulation system connects the bottom filtration system and the main tank. The water level in the aforementioned tidal tank does not fluctuate drastically with the tides, and the bottom filtration system requires less storage space, thus reducing its space occupancy.

Description

Technical Field

[0001] This utility model relates to the field of aquariums, and in particular to a water-land tidal tank. Background Technology

[0002] The tidal tank consists of a water zone and a land zone. Currently, the rise and fall of the tide in the land zone is controlled by adjusting the outflow from the water zone. When a high tide is needed, the outflow from the water zone is reduced or the inflow from the water zone is increased, causing the water level in the water zone to rise. The water in the water zone then overflows into the land zone through the overflow pipe, thus raising the water level in the land zone. When a low tide is needed, the outflow from the water zone is increased or the inflow from the water zone is reduced, causing the water level in the water zone to fall. Once the water level in the water zone drops to a point where it can no longer overflow into the land zone through the overflow pipe, the water level in the land zone begins to fall, resulting in a low tide.

[0003] However, in a tidal aquarium, the actual rise and fall of tides and the achievement of the tidal effect only occur in the land area. The rise and fall of tides in the water area have no significant effect on the organisms there. Furthermore, the simultaneous rise and fall of tides in the water and land areas causes large fluctuations in the water level of the bottom filtration system, requiring a large water storage space to be reserved. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a tidal tank that keeps the water level in its water area relatively fixed during the ebb and flow of the tide, thereby reducing the need for water storage space in the bottom filtration system.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A type of tidal tank also includes:

[0007] The main cylinder is equipped with a partition plate that divides the main cylinder into a water area and at least one land area. The land area is equipped with a tidal pool and an overhead filter isolation layer. The area above the overhead filter isolation layer is used to form a land area that is isolated from the tidal pool, and the area below the overhead filter isolation layer is used to form a water circulation area.

[0008] An overflow connecting pipe is provided, with its inlet end extending into the water area and located below the water level in the water area, and its outlet end extending into the land area and located above the tidal pool. The overflow connecting pipe is equipped with a control valve for controlling the opening and closing of the overflow connecting pipe.

[0009] A bottom filtration system is located below the main cylinder;

[0010] A water circulation system is provided to connect the bottom filtration system and the main cylinder. The water circulation system includes a drain pipe and a water inlet device. The drain pipe connects the inlet of the bottom filtration system to the drain of the water circulation zone and the water zone, respectively. The water inlet device selectively connects the outlet of the bottom filtration system to the water circulation zone and the water zone.

[0011] In one embodiment of this application, the overflow connecting pipe is disposed on the partition plate.

[0012] In one embodiment of this application, the main cylinder includes a front cylinder wall, a rear cylinder wall, a bottom cylinder wall, a left cylinder wall, and a right cylinder wall. The bottom cylinder wall includes four pairs of opposite edges. The front cylinder wall and the rear cylinder wall are respectively connected to a pair of opposite edges of the bottom cylinder wall and stand upright in a direction away from the bottom cylinder wall. The left cylinder wall and the right cylinder wall are respectively connected to another pair of opposite edges of the bottom cylinder wall and stand upright in a direction away from the bottom cylinder wall. The left cylinder wall and the right cylinder wall are respectively connected to the front cylinder wall and the rear cylinder wall to form the main cylinder. The bottom edge of the partition plate is connected to the bottom cylinder wall, and the two side edges of the partition plate are respectively connected to the front cylinder wall and the rear cylinder wall.

[0013] In one embodiment of this application, the overflow connecting pipe is located on the side of the front cylinder wall away from the rear cylinder wall, and the water inlet end of the overflow connecting pipe extends through the front cylinder wall into the water area, and the water outlet end of the overflow connecting pipe extends through the front cylinder wall into the land area; and / or, the overflow connecting pipe is located on the side of the rear cylinder wall away from the front cylinder wall, and the water inlet end of the overflow connecting pipe extends through the rear cylinder wall into the water area, and the water outlet end of the overflow connecting pipe extends through the rear cylinder wall into the land area.

[0014] In one embodiment of this application, the front cylinder wall and / or the rear cylinder wall are provided with a concave structure that is recessed into the interior of the water-land tidal tank. The water inlet end of the overflow connecting pipe extends into the water area through the side cylinder wall of the concave structure used to form the water area, and the water outlet end of the overflow connecting pipe extends into the land area through the side cylinder wall of the concave structure used to form the land area.

[0015] In one embodiment of this application, the outlet end of the overflow connecting pipe has an extension pipe section extending toward the tidal pool, and the extension pipe section is provided with a float valve for controlling the opening and closing of the extension pipe section, the float valve being used to control the high tide level of the land area.

[0016] In one embodiment of this application, an overflow component is provided in the water area, and a fish comb structure is provided on the upper and / or lower part of the overflow component. The overflow component forms an overflow area in the water area that is connected to the water area through the fish comb structure. The overflow area serves as the drainage end of the water area and is connected to the sewer pipe.

[0017] In one embodiment of this application, the drainage pipeline includes a first drainage pipe and a second drainage pipe. The inlet end of the first drainage pipe extends into the overflow area, and the inlet end of the second drainage pipe is connected to the water circulation area. The outlet ends of the first drainage pipe and the second drainage pipe are connected in parallel to the inlet end of the bottom filtration system. The first drainage pipe and the second drainage pipe are respectively provided with a first regulating valve for adjusting the drainage flow rate.

[0018] In one embodiment of this application, the overflow connecting pipe is provided with a second regulating valve, which is used to adjust the flow cross-sectional area of ​​the overflow connecting pipe.

[0019] In one embodiment of this application, the bottom filtration system includes a bottom filter cylinder, a first end of which is the water inlet of the bottom filtration system, and a second end of which is the water outlet of the bottom filtration system. The water supply device includes a water pump, a first water supply pipe, and a second water supply pipe. The water pump is disposed inside the bottom filter cylinder and located at the second end of the bottom filter cylinder. The water outlet of the first water supply pipe is connected to the water circulation area. The water outlet of the second water supply pipe extends upward to a position near the upper edge of the main cylinder and connects to a horizontal extension pipe and / or a bent pipe to communicate with the water area. The horizontal extension pipe or the bent pipe is provided with an anti-siphon hole. The first water supply pipe and the second water supply pipe are respectively provided with a third regulating valve for adjusting the water supply flow rate.

[0020] This utility model provides a tidal tank, which includes a main tank, an overflow connecting pipe, a bottom filtration system, and a water circulation system. The main tank is divided into a water zone and at least one land zone by a partition plate. The land zone includes a tidal pool and an elevated filtration isolation layer. Above the elevated filtration isolation layer forms a land area isolated from the tidal pool, and below the elevated filtration isolation layer forms a water circulation zone. The inlet end of the overflow connecting pipe extends into the water zone and is below the water level. The outlet end of the overflow connecting pipe extends into the land zone and is above the tidal pool. The overflow connecting pipe is equipped with a control valve to control its opening and closing. The bottom filtration system is located below the main tank. The water circulation system connects the bottom filtration system and the main tank. The water circulation system includes a drain pipe and a water inlet device. The drain pipe connects the inlet end of the bottom filtration system to the water circulation zone and the drain end of the water zone, respectively. The water inlet device selectively connects the outlet end of the bottom filtration system to the water circulation zone and the water zone.

[0021] The inlet of the overflow connecting pipe of the aforementioned tidal tank is always below the water level in the water zone. When the land zone is at low tide, the control valve is closed, and the overflow connecting pipe is cut off by the control valve. Water in the water zone cannot enter the land zone through the overflow connecting pipe. The water in the water zone enters the bottom filtration system through the water circulation system in an overflow manner. When the land zone needs to rise, the control valve is opened, and the overflow connecting pipe is open. Water in the water zone enters the land zone through the overflow connecting pipe on one hand, and enters the bottom filtration system through the water circulation system in an overflow manner on the other hand. When the tide needs to recede, the control valve is closed, and water in the water zone cannot enter the land zone through the overflow connecting pipe. The water in the land zone seeps through the land to the water circulation area below the overhead filter isolation layer, and then enters the bottom filtration system through the water circulation system.

[0022] As can be seen, during the ebb and flow of the above-mentioned tidal tank, the total flow of water entering and leaving the water zone remains basically unchanged and in balance. The water level in the water zone does not fluctuate drastically with the ebb and flow of the tide. Only the water level in the land zone changes with the ebb and flow of the tide. Since the land zone itself has a small water storage capacity, the water level change in the land zone requires less water storage space for the bottom filtration system. This can reduce the water storage space of the bottom filtration system and reduce its space occupation. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the tidal tank provided in the first embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the structure of the tidal tank in the low tide state provided in the first embodiment of this utility model;

[0026] Figure 3 A schematic diagram of the structure of the tidal tank in the high tide state provided in the first embodiment of this utility model;

[0027] Figure 4 A top view of the main cylinder of the tidal tank provided in the first embodiment of this utility model;

[0028] Figure 5 A top view of the main cylinder of the tidal tank provided in the second embodiment of this utility model;

[0029] Figure 6 A front view of the main cylinder of the tidal tank provided in the second embodiment of this utility model;

[0030] Figure 7 A top view of the main cylinder of the tidal tank provided in the third embodiment of this utility model;

[0031] Figure 8 A front view of the main cylinder of the tidal tank provided in the third embodiment of this utility model;

[0032] Figure 9 This is a schematic diagram of the structure of the tidal tank provided in the fourth embodiment of the present invention.

[0033] The names of the components are as follows:

[0034] 1-Main tank, 101-Water area, 102-Land area, 103-Divider plate, 104-Tide pool, 105-Elevated filter isolation layer, 1051-Bottom filter frame, 1052-Filter layer, 106-Water circulation area, 107-Overflow area; 1071-Overflow gap, 1072-Backpack water tank, 108-Overflow baffle, 109-Fish comb structure, 110-Mesh plate, 111-Front tank wall, 112-Rear tank wall, 113-Bottom tank wall, 114-Left tank wall, 115-Right tank wall, 116-Concave structure, 1161-First concave side tank wall, 1162-Second concave side tank wall;

[0035] 2- Overflow connecting pipe;

[0036] 3-Bottom filtration system, 301-Bottom filter cylinder, 302-Filter device, 303-Divider plate assembly, 3031-Baffle plate, 3032-Overflow plate, 304-Functional compartment;

[0037] 4-Drainage pipe, 401-First drainage pipe, 402-Second drainage pipe, 403-First regulating valve;

[0038] 5-Water supply device, 501-Water pump, 502-First water supply pipe, 503-Second water supply pipe, 504-Guide pipe, 505-Horizontal extension pipe, 506-Bend pipe, 507-Anti-siphon hole, 508-Third regulating valve;

[0039] 6-Control valve, 7-Fish barrier net, 8-Second regulating valve;

[0040] 9-Land, 901-Sand layer, 902-Sand-mud mixture layer, 903-Mud layer;

[0041] 10-Extension pipe section, 11-Float valve. Detailed Implementation

[0042] In view of this, the core of this utility model is to design a tidal tank that has a structural design that keeps the water level in its water area relatively fixed during the ebb and flow of the tide, thereby reducing the need for water storage space in the bottom filtration system.

[0043] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Please refer to the attached document. Figure 1 , Figure 1 This is a schematic diagram of the structure of the tidal tank provided in the first embodiment of the present invention.

[0045] This application discloses an aquatic tidal tank, which includes a main tank 1, an overflow connecting pipe 2, a bottom filtration system 3, and a water circulation system.

[0046] The main cylinder 1 is equipped with a partition plate 103, which divides the main cylinder 1 into at least one water zone 101 and at least one land zone 102. The water zone 101 is used to contain the seawater, and the land zone 102 is used to form land for intertidal organisms to live on, and the land can allow seawater to seep downwards. The partition plate 103 is made of a material that can withstand a certain pressure and is corrosion resistant, such as a glass plate or an acrylic plate. The partition plate 103 can adopt a straight structure, or an L-shaped structure, a T-shaped structure, a U-shaped structure, an O-shaped structure, or other non-straight structure, to divide the water zone 101 and the land zone 102 as needed.

[0047] The main cylinder 1 is generally formed by the bottom cylinder wall and the side cylinder walls that rise from the four edges of the bottom cylinder wall away from the bottom cylinder wall. When the partition plate 103 is a straight structure, the partition plate 103 is connected to the bottom cylinder wall of the main cylinder 1 and the two opposite side cylinder walls to separate the area inside the main cylinder 1. Of course, the partition plate 103 can also be a straight structure, so that the partition plate 103 is connected to the bottom cylinder wall of the main cylinder 1 and the two adjacent side cylinder walls.

[0048] When the partition plate 103 has an L-shaped structure, it can be connected to the bottom cylinder wall of the main cylinder 1 and the two adjacent side cylinder walls. When the partition plate 103 has a U-shaped structure, the two ends of the partition plate 103 are connected to one side cylinder wall and the bottom cylinder wall of the main cylinder 1.

[0049] The partition plate 103 can also adopt a T-shaped structure, that is, two of the end edges of the partition plate 103 are connected to the two side cylinder walls opposite to the main cylinder 1, the other end edge is connected to the other side cylinder wall, and the bottom of the partition plate 103 is connected to the bottom of the main cylinder 1.

[0050] When the partition plate 103 is an O-shaped structure or a circumferentially closed structure composed of polygons, the partition plate 103 is connected to the bottom cylinder wall of the main cylinder 1 only at its bottom edge. The area outside the circumferentially closed structure is one of the water area 101 and the land area 102, and the area inside the circumferentially closed structure is the other of the water area 101 and the land area 102.

[0051] Of course, in addition to the above-mentioned structures, the partition plate 103 can also have other structures, which will not be listed here.

[0052] One or more partition plates 103 can be installed inside the main cylinder 1. When only one partition plate 103 is installed inside the main cylinder 1, the main cylinder 1 is divided into a land area 102 and a water area 101. When multiple partition plates 103 are installed inside the main cylinder 1, the main cylinder 1 can be divided into multiple land areas 102 and a water area 101, or multiple water areas 101 and a land area 102. No limitation is made here. Figure 1 The embodiment shown has a scheme in which a straight partition plate 103 is provided in the main cylinder 1, which divides the main cylinder 1 into a land area 102 and a water area 101.

[0053] The land area 102 is equipped with a tidal pool 104 and an elevated filter isolation layer 105. Above the elevated filter isolation layer 105, a land area 9 is formed that is isolated from the tidal pool 104. The land area 9 is composed of sand, a mixture of tidal mud and sand, and pure tidal mud. The land area 9 is generally laid out by the user. This tidal aquarium is mainly used to raise intertidal organisms. It needs to have a land thickness sufficient to meet their digging and hiding habits, while ensuring that the water flow rate meets the needs of rising and falling tides.

[0054] The tidal pool 104 is located below the outlet end of the overflow connecting pipe 2. The tidal pool 104 acts as a buffer for the water flowing out of the overflow connecting pipe 2 to prevent the overflow water from impacting the land 9 and causing the silt to float. At the same time, it can store a certain amount of water during low tide to support intertidal biological activities. That is, the water flowing out of the outlet end of the overflow connecting pipe 2 first enters the tidal pool 104, fills the tidal pool 104, and then overflows from the upper edge of the tidal pool 104 to the land 9.

[0055] The surface of the sand or tidal flat in land area 102 contains organic matter (algae, nematodes, organic detritus, etc.) that intertidal organisms can feed on. The algae and nematodes grow and proliferate under conditions of suitable light, sand or tidal mud, and suitable salinity and humidity. The organic detritus mainly comes from plankton and their remains, food debris, and aquatic organism excrement particles in water area 101. During high tide in water area 101, these substances are carried by the current to land area 102 and then remain on the surface of land 9. The light source can be natural sunlight or artificial light sources suitable for the growth of ordinary plants.

[0056] like Figure 2 and Figure 3As shown, to prevent the land 9 from being washed up and floating to the tide pool 104 or water area 101 during the ebb and flow of the tide, the land 9 adopts a double-layer setting. That is, a layer of sand with strong water permeability 901 is first laid on top of the overhead filter isolation layer 105, and then a muddy mud layer 903 and / or a mud-sand mixture layer 902 made of muddy mud and sand is laid on top of the sand layer 901. The muddy mud has a certain degree of viscosity and will only be washed up when the water flow is large. However, the ebb and flow of the tide in this tank is relatively slow, so the muddy mud in the tank can remain in place, forming a stable muddy environment.

[0057] The sand layer 901 separates the overhead filter isolation layer 105 below the sand layer 901 from the tidal mud layer 903 and / or the mud-sand mixture layer 902 above the sand layer 901, preventing the tidal mud layer 903 and / or the mud-sand mixture layer 902 from directly contacting the overhead filter isolation layer 105. Since the filter layer 1052 above the overhead filter isolation layer 105 in this application is made of nano bricks, the sand layer 901 can prevent the tidal mud in the tidal mud layer 903 and / or the mud-sand mixture layer 902 from seeping into the nano bricks, thus avoiding the filtration pores of the nano bricks being blocked by the tidal mud, which would lead to drainage difficulties.

[0058] Specifically, in Figure 2 and Figure 3 In the illustrated embodiment, the land 9 includes a sand layer 901 and a mudflat layer 903 and a mud-sand mixture layer 902 disposed on the sand layer 901. The mud-sand mixture layer 902 is located below the tidal pool 104, and the mudflat layer 903 is disposed on the side of the mud-sand mixture layer 902 away from the tidal pool 104 to reduce the entry of mudflat mud into the tidal pool 104 or the water area 101.

[0059] The land elevation of land area 102 may be slightly lower than that of tidal pool 104, or the same as that of tidal pool 104, such as... Figure 1 In the embodiment shown, the land elevation is slightly lower than that of the tidal pool 104.

[0060] The elevated filter isolation layer 105 forms a water circulation zone 106 below it. The water circulation zone 106 is used to keep the water circulating between the main tank 1 and the bottom filter system 3 during the ebb and flow of the tide, so as to avoid the collapse of the nitrification system. Mangroves and other plants can be planted in the land area 102 to help the bottom filter system 3 absorb harmful substances in the tank.

[0061] An overflow connecting pipe 2 is installed on the partition plate 103 or the cylinder wall of the main cylinder 1. The water zone 101 and the land zone 102 can be connected by one or more overflow connecting pipes 2. The inlet end of the overflow connecting pipe 2 extends into the water zone 101 and is located below the liquid level of the water zone 101. The outlet end of the overflow connecting pipe 2 extends into the land zone 102 and is located above the tidal pool 104. The overflow connecting pipe 2 is equipped with a control valve 6 for controlling the opening and closing of the overflow connecting pipe 2. The control valve 6 can be a normally closed valve or a normally open valve. When the control valve 6 is a normally closed valve, it is not energized during low tide and remains closed, cutting off the overflow connection pipe 2. During high tide, the control valve 6 is energized and opens, allowing the overflow connection pipe 2 to be open, and water from water zone 101 enters land zone 102 through the overflow connection pipe 2. When the control valve 6 is a normally open valve, it is energized during low tide and remains closed, cutting off the overflow connection pipe 2. During high tide, the control valve 6 is de-energized and opens, allowing the overflow connection pipe 2 to be open, and water from water zone 101 enters land zone 102 through the overflow connection pipe 2.

[0062] To prevent organisms from the water area 101 or the land area 102 from entering the overflow pipe 2, fish-blocking nets 7 are installed at both ends of the overflow pipe 2.

[0063] The bottom filtration system 3 is located below the main cylinder 1. The bottom filtration system 3 includes an inlet end and an outlet end. On the one hand, the bottom filtration system 3 is used to filter the water in the main cylinder 1. On the other hand, it has a certain amount of redundant space to withstand the water level changes caused by the rise and fall of tides.

[0064] The water circulation system is used to connect the bottom filter system 3 and the main cylinder 1. The water circulation system includes a drain pipe 4 and a water inlet device 5. The drain pipe 4 connects the water inlet of the bottom filter system 3 to the drain of the water circulation zone 106 and the water zone 101 respectively. The water inlet device 5 selectively connects the water outlet of the bottom filter system 3 to the water circulation zone 106 and the water zone 101. The bottom filter system 3 works in conjunction with the water circulation system to filter and remove harmful substances from the water during the water circulation process.

[0065] The inlet of the overflow connecting pipe 2 of the aforementioned tidal tank is always below the water level of the water zone 101. When the land zone 102 is at low tide, the control valve 6 is closed, and the overflow connecting pipe 2 is cut off by the control valve 6. Water from the water zone 101 cannot enter the land zone 102 through the overflow connecting pipe 2. The water from the water zone 101 enters the bottom filtration system 3 through the water circulation system in an overflow manner. When the land zone 102 needs to rise, the control valve 6 is opened, and the overflow connecting pipe 2 is opened. Water from the water zone 101 enters the land zone 102 through the overflow connecting pipe 2 on one hand, and enters the bottom filtration system through the water circulation system in an overflow manner on the other hand. When the tide needs to recede, the control valve 6 is closed, and water from the water zone 101 cannot enter the land zone 102 through the overflow connecting pipe 2. The water from the land zone 102 seeps through the land 9 to the water circulation zone 106 below the overhead filter isolation layer 105, and enters the bottom filtration system 3 through the water circulation system. After filtration, it returns to the water zone 101 of the main tank 1, and the cycle repeats.

[0066] Therefore, it can be seen that during the ebb and flow of the tidal tank provided in this application embodiment, the total flow rate of the water in the water zone 101 and the total flow rate of the water outflow remain basically unchanged and remain in balance. The water level of the water zone 101 will not fluctuate drastically with the ebb and flow of the tide. Only the water level of the land zone 102 will change with the ebb and flow of the tide. Since the land zone 102 itself has a small water storage capacity, the water level change of the land zone 102 requires less water storage space for the bottom filtration system 3. This can reduce the water storage space of the bottom filtration system 3 and reduce the space occupation of the bottom filtration system.

[0067] Please see Figures 2 to 4 In the first embodiment of this application, the overflow connecting pipe 2 is disposed on the partition plate 103.

[0068] Specifically, the main cylinder adopts a rectangular structure, that is, the main cylinder 1 includes a front cylinder wall 111, a rear cylinder wall 112, a bottom cylinder wall 113, a left cylinder wall 114, and a right cylinder wall 115. The bottom cylinder wall 113 includes four pairs of opposite edges. The front cylinder wall 111 and the rear cylinder wall 112 are respectively connected to a pair of opposite edges of the bottom cylinder wall 113 and stand upright in a direction away from the bottom cylinder wall 113. The left cylinder wall 114 and the right cylinder wall 115 are respectively connected to another pair of opposite edges of the bottom cylinder wall 113 and stand upright in a direction away from the bottom cylinder wall 113. The left cylinder wall 114 and the right cylinder wall 115 are respectively connected to the front cylinder wall 111 and the rear cylinder wall 112 to form the main cylinder 1. The bottom edge of the partition plate 103 is connected to the bottom cylinder wall 113, and the two side edges of the partition plate 103 are respectively connected to the front cylinder wall 111 and the rear cylinder wall 112.

[0069] In the first embodiment, the overflow connecting pipe 2 is disposed on the partition plate 103 and located near the top edge of the partition plate 103.

[0070] Please see Figure 5 and Figure 6 In the second embodiment provided in this application, the overflow connecting pipe 2 is disposed on the cylinder wall of the main cylinder 1. The overflow connecting pipe 2 is located on the side of the front cylinder wall 111 away from the rear cylinder wall 112, and the water inlet end of the overflow connecting pipe 2 passes through the front cylinder wall 111 and extends into the water area 101, and the water outlet end of the overflow connecting pipe 2 passes through the front cylinder wall 111 and extends into the land area 102. And / or, the overflow connecting pipe 2 is located on the side of the rear cylinder wall 112 away from the front cylinder wall 111, and the water inlet end of the overflow connecting pipe 2 passes through the rear cylinder wall 112 and extends into the water area 101, and the water outlet end of the overflow connecting pipe 2 passes through the rear cylinder wall 112 and extends into the land area 102.

[0071] It should be noted that, since the front cylinder wall 111 of the main cylinder 1 is usually used as the viewing surface, in the preferred embodiment of this application, the overflow connecting pipe 2 is located on the side of the rear cylinder wall 112 away from the front cylinder wall 111. This allows the overflow connecting pipe 2 to be hidden on the back of the tidal tank, making it difficult to notice the existence of the overflow connecting pipe 2 when viewed from the front cylinder wall 111, which further enhances the aesthetics of the tidal tank.

[0072] like Figure 7 and Figure 8 As shown, in the third embodiment of this application, the front cylinder wall 111 and / or the rear cylinder wall 112 are provided with a concave structure 116 that is recessed into the interior of the water-land tidal tank. The water inlet end of the overflow connecting pipe 2 passes through the concave structure 116 to form the water area and extends into the water area 101. The water outlet end of the overflow connecting pipe 2 passes through the concave structure 116 to form the land area 102 and extends into the land area 102.

[0073] Considering that the rear cylinder wall 112 of the main cylinder 1 of the tidal tank is often set against the wall, in the third embodiment, the concave structure 116 is preferably set on the rear cylinder wall 112 to avoid the overflow connecting pipe 2 forming a protruding structure on the rear cylinder wall 112, which would prevent the rear cylinder wall 112 from being against the wall.

[0074] Specifically, such as Figure 7 and Figure 8 As shown, the concave structure 116 includes a concave first side cylinder wall 1161 and a concave second side cylinder wall 1162. The concave second side cylinder wall 1162 is arranged parallel to the front cylinder wall 111 and the rear cylinder wall 112. The two concave first side cylinder walls 1161 are disposed on the two longitudinal edges of the concave second side cylinder wall 1162. The concave first side cylinder wall 1161 and the concave second side cylinder wall 1162 extend directly downward to connect with the bottom cylinder wall 113.

[0075] In the above case, the partition plate 103 can be connected to the concave second side cylinder wall 1162, or to one of the two concave first side cylinder walls 1161, or the partition plate 103 and one of the two concave first side cylinder walls 1161 can be integrated, which is not limited here.

[0076] Of course, the concave structure 116 may also include a concave bottom cylinder wall, one edge of which is connected to the front cylinder wall 111 or the rear cylinder wall 112, and the other three cylinder walls are respectively connected to the bottom edges of the concave second cylinder wall 1162 and the two concave first cylinder walls 1161. In this embodiment, the bottom of the concave structure 116 is suspended, so a notch can be provided at one corner of the partition plate 103, so that the vertical edge of the notch is connected to the concave second cylinder wall 1162 or one of the two concave first cylinder walls 1161, and the lateral edge is connected to the concave second cylinder wall 1162 to support the concave structure 116 and improve the stability of the concave structure 116.

[0077] like Figure 7 and Figure 8 As shown, the concave structure 116 is symmetrically arranged about the partition plate 103. Therefore, the overflow connecting pipe 2 can be a straight pipe, and its two ends can be connected to the two concave first side cylinder walls 1161 respectively. The overflow connecting pipe 2 can also be a bent pipe, with its two ends connected to the concave second side cylinder walls 1162 on both sides of the partition plate 103 respectively.

[0078] like Figure 9 As shown, in the fourth embodiment of this application, the outlet end of the overflow connecting pipe 2 has an extension pipe section 10 extending towards the tidal pool 104. The extension pipe section 10 is provided with a float valve 11 for controlling the opening and closing of the extension pipe section 10. The float valve 11 is used to control the high tide level of the land area 102. This can make the height of the land area 102 significantly lower than that of the water area 101, and also prevent the water level of the land area 102 from being too high during high tide. Thus, the water level of the water area 101 and the thickness of the land in the land area 102 can be controlled, and can be adapted according to user needs.

[0079] An overflow component is provided in the water area 101. A fish comb structure 109 is provided on the upper and / or lower part of the overflow component to prevent organisms in the water area 101 from falling into the overflow area 107. At the same time, the fish comb structure 109 can also easily remove the oil film formed on the surface of the water in the water area 101 due to feeding, excrement, etc. The overflow component forms an overflow area 107 in the water area 101, which is connected to the water area 101 through the fish comb structure 109. The overflow area 107 serves as the drainage end of the water area 101 and is connected to the drain pipe 4. That is, the water in the water area 101 first falls into the overflow area 107 through the fish comb structure 109 on the overflow component, and then enters the bottom filtration system 3 through the drain pipe 4 connected to the overflow area 107.

[0080] The fish comb structure 109 includes a plurality of elongated strip-shaped holes arranged in a horizontal direction to allow water to flow through while preventing organisms from entering the overflow area 107.

[0081] The low tide level of water zone 101 is determined by the overflow height of the overflow component. As long as the overflow height of the overflow component is high, the low tide level of water zone 101 will also be high. Therefore, water zone 101 can still have a high water level at low tide to meet the water needs of aquatic organisms.

[0082] On the other hand, the water inside the land area 102 can be discharged to the bottom filtration system 3 through the water circulation system, so that the land inside the land area 102 can be fully exposed, forming a deeper and more breathable land to meet the needs of intertidal organisms for land.

[0083] like Figure 1 As shown, in one embodiment of this application, the drain pipe 4 includes a first drain pipe 401 and a second drain pipe 402. The inlet end of the first drain pipe 401 extends into the overflow area 107, and the water entering the overflow area 107 is discharged through the first drain pipe 401. The inlet end of the second drain pipe 402 is connected to the water circulation area 106, so that the water in the water circulation area 106 flows into the bottom filtration system 3. The outlet ends of the first drain pipe 401 and the second drain pipe 402 are connected in parallel and connected to the inlet end of the bottom filtration system 3. The first drain pipe 401 and the second drain pipe 402 are respectively provided with a first regulating valve 403 for adjusting the drain flow. The first regulating valve 403 can be a manual valve or an electric valve, which is not limited here. Adjusting the first regulating valve 403 on each drain pipe to an appropriate range can not only adjust the drain flow to match the water supply flow, but also reduce the drain noise of each drain pipe.

[0084] The first drain pipe 401 and the second drain pipe 402 are connected in parallel and share a common main outlet. This main outlet should be appropriately enlarged to avoid mutual interference when the water from the first drain pipe 401 and the second drain pipe 402 flows out, thus reducing drainage noise. A filter bag can be placed over the main outlet to filter the water that is about to enter the bottom filtration system 3. Alternatively, a deluge pipe can be connected, and a wet and dry separation box can be installed, with the deluge pipe extending into the wet and dry separation box.

[0085] like Figure 1 As shown, in one embodiment of this application, the overflow component is an overflow baffle 108. A backpack water tank 1072 is externally mounted on the cylinder wall opposite to the overflow baffle 108 of the main cylinder 1. The backpack water tank 1072 can reduce the occupation of the internal space of the main cylinder 1, so that the overflow baffle 108 is close to the cylinder wall of the main cylinder 1, thereby visually reducing the obstructions inside the main cylinder 1. An overflow gap 1071 is formed between the overflow baffle 108 and the cylinder wall of the main cylinder 1 where the backpack water tank 1072 is mounted. A notch is provided on the upper part of the cylinder wall of the main cylinder 1 where the backpack is mounted to connect the overflow gap 1071 and the backpack water tank 1072. The overflow gap 1071 and the backpack water tank 1072 together constitute the overflow area 107. The first drain pipe 401 is installed in the backpack water tank 1072.

[0086] like Figure 1 As shown, the backpack water tank 1072 is formed by a backpack bottom plate and three backpack side plates. The three backpack side plates are connected in sequence and stand up from the three sides of the backpack bottom plate. The backpack bottom plate and the two backpack side plates arranged opposite each other are respectively connected to the outer surface of the cylinder wall of the main cylinder 1. The first drain pipe 401 extends from the bottom of the backpack bottom plate through the backpack bottom plate and into the backpack water tank 1072.

[0087] It should be noted that the overflow component is not limited to the overflow baffle 108 described above. In other embodiments, the overflow component can also be an overflow sleeve, with the first drain pipe 401 located inside the overflow sleeve, and the upper and / or lower ends of the overflow sleeve are provided with a comb structure 109.

[0088] like Figures 1 to 9 As shown, in one embodiment of this application, the overflow connecting pipe 2 is provided with a second regulating valve 8, which is used to adjust the flow cross-sectional area of ​​the overflow connecting pipe 2, thereby realizing the regulation of the flow rate in the overflow connecting pipe 2.

[0089] like Figure 1 As shown, the bottom filtration system 3 includes a bottom filter tank 301. The first end of the bottom filter tank 301 is the water inlet of the bottom filtration system 3, and the second end is the water outlet of the bottom filtration system 3. The volume of the bottom filter tank 301 can be smaller than, the same as, or larger than the main tank 1. Since this case is mainly used for raising intertidal organisms or fish in coastal tidal ponds, the water quality requirements are relatively low. Therefore, the size of the bottom filter tank 301 can be appropriately reduced. The first end of the bottom filter tank 301 is the water inlet of the bottom filtration system 3, and the second end is the water outlet of the bottom filtration system 3.

[0090] To prevent small amounts of sediment or biological waste carried in the water from directly entering the bottom filtration system 3 and affecting water quality, in one embodiment of this application, the bottom filtration system 3 further includes a filter bag disposed at the first end of the bottom filter tank 301. The filter bag is connected to the outlet end of the drain pipe 4. This not only filters out small amounts of sediment or biological waste carried in the water, preventing them from directly entering the bottom filtration system 3, but also reduces the sound of water falling into the drain pipe.

[0091] And / or, the bottom filtration system 3 also includes a filter device 302 disposed above the first end of the bottom filter cylinder 301. The filter device 302 is mainly used for physical filtration to intercept impurities before they enter the bottom filtration system 3. The filter device 302 is located between the outlet end of the drain pipe 4 and the bottom filter cylinder 301. That is, only a filter bag, only a filter device 302, or both a filter bag and a filter device 302 can be installed at the outlet end of the drain pipe 4.

[0092] In the embodiments of this application, a filter device 302 is used, which includes, but is not limited to, a dry and wet separation filter box and a roll paper filter.

[0093] To improve the filtration effect, in the embodiments of this application, such as Figure 1 As shown, a partition plate group 303 is provided inside the bottom filter tank 301. The internal area of ​​the bottom filter tank 301 is divided into multiple functional compartments 304 by the partition plate group 303. The above-mentioned filter media or filter materials can be placed in the functional compartments 304 as needed. When setting the partition plate group 303, the size of the protein separator needs to be considered to avoid the protein separator being unable to be placed.

[0094] During operation, the water entering the bottom filter tank 301 flows sequentially through each functional compartment 304. The arrangement direction of each compartment plate group 303 can be determined according to the shape of the bottom filter tank 301 to maximize the use of the space in the bottom filter tank 301. For example, when the bottom filter tank 301 is rectangular, each compartment plate group 303 is arranged sequentially along the length of the bottom filter tank 301. When the bottom filter tank 301 is square, if it is still arranged sequentially along the side length of the bottom filter tank 301, it will result in each functional compartment 304 in the bottom filter tank 301 being too narrow or unable to be divided into more functional compartments 304. Therefore, in this case, each compartment plate group 303 can be arranged in a cross shape or a T shape to make full use of the space in the bottom filter tank 301 as much as possible.

[0095] Specifically, such as Figure 1 In the illustrated embodiment, the partition plate assembly 303 includes a baffle plate 3031 and an overflow plate 3032 arranged side by side. A first water flow channel is formed between the bottom of the baffle plate 3031 and the bottom surface of the bottom filter cylinder 301. The overflow plate 3032 is connected to the bottom surface and both sides of the bottom filter cylinder 301, and the upper edge of the overflow plate 3032 is lower than the upper edges of the baffle plate 3031 and the bottom filter cylinder 301. A second water flow channel is formed between the baffle plate 3031 and the overflow plate 3032. Water in the upstream functional compartment 304 flows into the downstream functional compartment 304 sequentially through the first water flow channel, the second water flow channel, and the space above the overflow plate 3032. Along the water flow direction, the height of the overflow plate 3032 in each partition plate assembly 303 decreases sequentially.

[0096] The baffle 3031 guides the water flow, allowing it to pass through each functional cell 304. The overflow plate 3032 causes water in one functional cell 304 to overflow into the next. If the water level in the bottom filter tank 301 exceeds the height of the baffle 3031, the water will pass directly over the baffle 3031, which will affect the filtration effect of the bottom filter tank 301. Therefore, the height of the baffle 3031 determines the maximum water level in the bottom filter tank 301.

[0097] Overflow plate 3032 limits the minimum water level of the functional compartment 304 in front of it. Since the second functional compartment 304 of the sump filter 301, following the water flow direction, is usually the protein skimmer compartment (where the protein skimmer is placed), it needs to maintain a stable water level. When the main tank 1 is at high tide, the water volume in the sump filter 301 decreases; when the main tank 1 is at low tide, the water volume in the sump filter 301 increases. To ensure that the water level in the protein skimmer compartment remains stable despite these changes in water volume, the overflow plate 3032 between the first two compartments—that is, the overflow plates 3032 upstream and downstream of the protein skimmer compartment—needs to be appropriately raised. However, the overflow plates 3032 should still be lower than the baffle plate 3031, and subsequent overflow plates 3032 should be appropriately lowered. Thus, the water volume changes in the sump filter 301 are concentrated in the functional compartment 304 after the protein skimmer compartment. The heights of the two overflow plates 3032 located upstream and downstream of the egg compartment can be equal, or the height of the overflow plate 3032 located upstream of the egg compartment can be 0cm-3cm higher than the height of the overflow plate 3032 located downstream of the egg compartment.

[0098] It should be noted that when the water volume and biomass are low, and the filtration demand is low, the aforementioned partition plate group 303 may not be installed in the bottom filter tank 301.

[0099] The water supply device 5 includes a water pump 501, a first water supply pipe 502, and a second water supply pipe 503. The water pump 501 is installed inside the bottom filter cylinder 301. The water pump 501 is preferably a variable frequency water pump with adjustable flow rate and is located at the second end of the bottom filter cylinder 301. The outlet end of the water pump 501 is connected to the inlet ends of the first water supply pipe 502 and the second water supply pipe 503. The outlet end of the first water supply pipe 502 is connected to the water circulation zone 106, and the outlet end of the second water supply pipe 503 is connected to the water zone 101. The outlet end of the second water supply pipe 503 extends upward to a position near the upper edge of the main cylinder 1 and connects to a horizontal extension pipe 505 and / or a bent pipe 506. The horizontal extension pipe 505 or the bent pipe 506 is provided with an anti-siphon hole 507. The first water supply pipe 502 and the second water supply pipe 503 are respectively provided with a third regulating valve 508 for adjusting the water supply flow rate.

[0100] The outlet end of the first water supply pipe 502 is provided with a guide pipe 504. The guide pipe 504 is parallel to the bottom wall of the main cylinder 1, that is, the axis of the guide pipe 504 is parallel to or approximately parallel to the bottom wall of the main cylinder 1, so that the water outlet of the first water supply pipe 502 flows into the water circulation area 106 in a direction parallel or basically parallel to the bottom wall of the main cylinder 1, avoiding scouring the overhead filter isolation layer 105.

[0101] like Figure 1 As shown, in one embodiment of this application, the second water inlet pipe 503 passes through the bottom plate of the backpack water tank 1072 from bottom to top and extends upward.

[0102] like Figure 1 As shown in this application, the overhead filter isolation layer 105 includes a filter layer 1052 and a bottom filter frame 1051. The filter layer 1052 blocks sand and allows water to flow. The filter layer 1052 includes, but is not limited to, nano bricks and filter screens, and can also be composed of nano bricks and filter screens. The bottom filter frame 1051 is located below the filter layer 1052. The bottom filter frame 1051 is a grid frame with supporting legs. Its function is to support the filter layer 1052 and form a water circulation zone 106 below it to facilitate water infiltration from the land to the water circulation zone 106.

[0103] In this application, the filter layer 1052 is composed of nano-bricks, and at least a portion of the nano-bricks have nano-brick protrusions below them. These protrusions extend into the water circulation zone 106, allowing water in the water circulation zone 106 to seep upwards into the land area through the nano-brick protrusions and the nano-bricks. The protrusions can extend to half or more of the height of the water circulation zone 106. When the land area recedes, the water in the water circulation zone 106 can seep upwards into the land through the nano-brick protrusions and the nano-bricks to maintain the humidity of the land.

[0104] The gap between the filter layer 1052 and the tank wall of the main tank 1 is sealed with materials such as expanding foam, landscaping clay, and cement, or sealed with sealing rings and sealing strips, to prevent sand from falling into the water circulation zone 106 and to prevent water from flowing from here without passing through the filter layer 1052 into the water circulation zone 106 below.

[0105] Since intertidal organisms may enter the tidal pool 104 or the water area 101 during the ebb and flow of the tide, in order to facilitate the entry and exit of intertidal organisms from the tidal pool 104 or the water area 101, in one embodiment of this application, the surface of the partition plate 103 near the water area 101 is provided with a raised, rough coating or a mesh plate 110, and the pool wall of the tidal pool 104 is also provided with a raised, rough coating or a mesh plate 110 to facilitate the climbing of intertidal organisms.

[0106] Of course, in order to facilitate the climbing of intertidal organisms, the partition plate 103 can be tilted from the bottom towards the land area 102, and the pool wall of the tidal pool 104 can be made into an inclined slope to facilitate the organisms to climb out of the tidal pool 104 and return to the land area 102.

[0107] After laying the mudflats and sand, the tidal pool 104 is placed directly below the outlet of the overflow connecting pipe 2. To improve the stability of the tidal pool 104, its bottom can be submerged into the land. This reduces the distance between the pool opening and the land surface, further mitigating the impact of the water flow on the land and facilitating the entry of various organisms from the land area 102 into the tidal pool 104.

[0108] Some organisms in the tidal aquarium, such as mudskippers, frequently move between the land area 102 and the water area 101. If mudskippers enter the water area 101 directly from the land area 102, the mud and sand they carry will be carried into the water area 101, thus polluting it. Therefore, this specific embodiment of the invention designs a sand-washing tank, located on the top of the partition 103 near the land area 102. Organisms must pass through the sand-washing tank before entering the water area 101 from the land area 102. The water in the tank causes the mud and sand on the organisms to detach and fall off, preventing further pollution of the water area 101 after entry. The mud and sand that falls from the organisms settles at the bottom of the sand-washing tank.

[0109] In the description of this utility model, it should be noted that the terms "upper", "lower", "bottom", "horizontal", "center", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0110] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0111] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An amphibious tidal tank, characterized in that, Also includes: A main cylinder (1) is provided with a partition plate (103) that divides the main cylinder (1) into a water zone (101) and at least one land zone (102). A tidal pool (104) and an overhead filter isolation layer (105) are provided in the land zone (102). The area above the overhead filter isolation layer (105) is used to form a land area that is isolated from the tidal pool (104). A water circulation zone (106) is formed below the overhead filter isolation layer (105). An overflow connecting pipe (2) is provided, with its inlet end extending into the water zone (101) and located below the liquid level of the water zone (101), and its outlet end extending into the land zone (102) and located above the tidal pool (104). The overflow connecting pipe (2) is provided with a control valve for controlling the opening and closing of the overflow connecting pipe (2). Bottom filtration system (3), the bottom filtration system (3) is located below the main cylinder (1); A water circulation system is used to connect the bottom filter system (3) and the main cylinder (1). The water circulation system includes a drain pipe (4) and a water supply device (5). The drain pipe (4) connects the water inlet of the bottom filter system (3) to the drain of the water circulation area (106) and the water area (101) respectively. The water supply device (5) selectively connects the water outlet of the bottom filter system (3) to the water circulation area (106) and the water area (101).

2. The amphibious tidal tank of claim 1, wherein, The overflow connecting pipe (2) is disposed on the partition plate (103).

3. The amphibious tidal tank of claim 1, wherein, The main cylinder (1) includes a front cylinder wall (111), a rear cylinder wall (112), a bottom cylinder wall (113), a left cylinder wall (114), and a right cylinder wall (115). The bottom cylinder wall (113) includes four pairs of opposite edges. The front cylinder wall (111) and the rear cylinder wall (112) are respectively connected to a pair of opposite edges of the bottom cylinder wall (113) and rise upwards away from the bottom cylinder wall (113). The left cylinder wall (114) and the right cylinder wall (115) are respectively connected to the... The other pair of opposite edges of the bottom cylinder wall (113) stand up in a direction away from the bottom cylinder wall (113). The left cylinder wall (114) and the right cylinder wall (115) are respectively connected to the front cylinder wall (111) and the rear cylinder wall (112) to form the main cylinder (1). The bottom edge of the partition plate (103) is connected to the bottom cylinder wall (113), and the two side edges of the partition plate (103) are respectively connected to the front cylinder wall (111) and the rear cylinder wall (112).

4. The amphibious tidal tank of claim 3, wherein, The overflow connecting pipe (2) is located on the side of the front cylinder wall (111) away from the rear cylinder wall (112), and the water inlet end of the overflow connecting pipe (2) extends through the front cylinder wall (111) into the water area (101), and the water outlet end of the overflow connecting pipe (2) extends through the front cylinder wall (111) into the land area (102), and / or, the overflow connecting pipe (2) is located on the side of the rear cylinder wall (112) away from the front cylinder wall (111), and the water inlet end of the overflow connecting pipe (2) extends through the rear cylinder wall (112) into the water area (101), and the water outlet end of the overflow connecting pipe (2) extends through the rear cylinder wall (112) into the land area (102).

5. The amphibious tidal tank of claim 3, wherein, The front cylinder wall and / or the rear cylinder wall are provided with a concave structure (116) that is recessed into the interior of the water-land tidal tank. The water inlet end of the overflow connecting pipe (2) extends into the water area (101) through the side cylinder wall of the concave structure (116) used to form the water area (101). The water outlet end of the overflow connecting pipe (2) extends into the land area (102) through the side cylinder wall of the concave structure (116) used to form the land area (102).

6. The amphibious tidal tank according to any one of claims 1 to 5, characterized in that The outlet end of the overflow connecting pipe (2) has an extension pipe section (10) extending toward the tidal pool (104). The extension pipe section (10) is provided with a float valve (11) for controlling the opening and closing of the extension pipe section (10). The float valve (11) is used to control the high tide level of the land area (102).

7. The amphibious tidal tank according to any one of claims 1 to 5, wherein An overflow component is provided in the water area (101). A fish comb structure (109) is provided on the upper and / or lower part of the overflow component. The overflow component forms an overflow area (107) in the water area (101) through the fish comb structure (109) and communicates with the water area (101). The overflow area (107) serves as the drainage end of the water area (101) and is connected to the sewer pipe (4).

8. The amphibious tidal tank of claim 7, wherein, The drain pipe (4) includes a first drain pipe (401) and a second drain pipe (402). The inlet end of the first drain pipe (401) extends into the overflow area (107), and the inlet end of the second drain pipe (402) is connected to the water circulation area (106). The outlet ends of the first drain pipe (401) and the second drain pipe (402) are connected in parallel to the inlet end of the bottom filtration system (3). The first drain pipe (401) and the second drain pipe (402) are respectively equipped with a first regulating valve for adjusting the drain flow.

9. The amphibious tidal tank according to any one of claims 1-5, characterized in that The overflow connecting pipe (2) is provided with a second regulating valve (8), which is used to adjust the flow cross-sectional area of ​​the overflow connecting pipe.

10. The amphibious tidal tank according to any one of claims 1-5, wherein, The bottom filtration system (3) includes a bottom filter cylinder (301), the first end of which is the water inlet of the bottom filtration system (3), and the second end of which is the water outlet of the bottom filtration system (3). The water supply device (5) includes a water pump (501), a first water supply pipe (502), and a second water supply pipe (503). The water pump (501) is installed inside the bottom filter cylinder (301) and is located at the second end of the bottom filter cylinder (301). The first water supply pipe (502) is installed at the second end of the bottom filter cylinder (301). The outlet of the first water supply pipe (502) is connected to the water circulation area (106). The outlet of the second water supply pipe (503) extends upward to the upper edge of the main cylinder (1) and connects to a horizontal extension pipe and / or a bent pipe to communicate with the water area (101). An anti-siphon hole is provided on the horizontal extension pipe (505) or the bent pipe (506). A third regulating valve (508) for adjusting the water flow rate is provided on the first water supply pipe (502) and the second water supply pipe (503).

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