CN106172154A - A kind of modular recirculated water classification aquaculture system - Google Patents

Abstract

The invention discloses a modular circulating water graded aquaculture system, which includes a multi-stage culture pond, a water treatment module, a collection and sedimentation tank, a water inlet module, a drainage module and a submersible pump. The multi-stage culture pond passes through the drainage module It communicates with the collection and sedimentation tank, the submersible pump is arranged in the collection and sedimentation tank, the water outlet of the submersible pump communicates with the water treatment module, and the water treatment module communicates with the multi-stage culture tank through the water inlet module. Each functional area of the present invention is modular, easy to assemble, disassemble and maintain, and saves time and cost for building ponds; at the same time, the present invention adopts multi-stage rotation farming, maximizes the use of space, increases the number of breeding crops, shortens the market cycle, and adopts point The array jet oxygenation system has the functions of oxygenation and water pushing, which reduces energy consumption; the water treatment module is transformed from an old container, which is low in cost and easy to popularize and apply. As a modular circulating water graded aquaculture system, the invention can be widely used in the field of aquaculture.

Description

A modular circulating water graded aquaculture system

technical field

The invention relates to the field of aquaculture, in particular to a modular circulating water graded aquaculture system.

Background technique

In recent years, with the continuous improvement of the scale of farming and the unrestrained use of water resources, the pond farming model is facing pressures such as water environmental pollution, increasing diseases, food safety requirements, coastal industrial land squeeze and the country's advocacy of energy conservation and emission reduction. Facing a bottleneck, we urgently need to change.

The industrialized recirculating aquaculture model is based on the treatment and recycling of aquaculture water as its core features, saving electricity, water and land, and is in line with the current national strategic needs for circular economy, energy conservation and emission reduction, and transformation of economic growth methods.

However, the current recirculating aquaculture system still has shortcomings such as high production energy consumption, high cost and low land utilization rate.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide a highly modular, easy to assemble, high space utilization, low cost, low energy consumption circulating water graded aquaculture system.

The technical solution adopted in the present invention is: a modular circulating water graded aquaculture system, including a multi-stage aquaculture pond, a water treatment module, a collection and sedimentation tank, a water inlet module, a drainage module and a submersible pump. The culture pond communicates with the collection and sedimentation tank through the drainage module. The submersible pump is arranged in the collection and sedimentation tank. The outlet of the submersible pump is connected with the water treatment module. The pool is connected.

Further, the multi-level culture pond includes a first-level standard thick pond, a second-level inter-culture pond and a third-level grow-out pond.

Further, there is a height difference between the multi-stage culture ponds, which is used to completely discharge the water in the previous stage culture ponds into the rear stage culture ponds.

Further, the multi-stage culture ponds are all composed of supports and PVC mesh.

Further, the multi-stage culture ponds are all provided with a central water retaining plate, so that the culture ponds form a ring-shaped racetrack structure.

Further, jet flow oxygenation systems are provided on both sides of the central water baffle.

Further, the collection and sedimentation tank is an inverted quadrangular pyramid structure.

Further, the bottom of the collection and sedimentation tank is provided with a self-priming sewage collection pipe and a sewage discharge pipe which communicate with each other.

Further, the water treatment module includes a fluidized bed, an aerobic filter tank, an anaerobic filter tank, and an outlet water balance tank. The water in the collection and sedimentation tank is lifted into the water treatment module by a submersible pump, and passed through the fluidized bed in sequence. , aerobic filter tank, anaerobic filter tank and effluent balance tank, then enter the multi-stage culture tank from the water inlet module.

Further, the water treatment module is transformed from an old container.

The beneficial effects of the present invention are: the present invention makes the assembly process simple and convenient through the modularization of each functional area, is easy to assemble and disassemble, saves the time and cost of building a pond, and is easy to maintain; To maximize the use of space, increase the number of breeding crops, shorten the time to market, and adopt a dot-matrix jet aeration system in the aquaculture pond, which has the functions of increasing oxygen and pushing water, reducing energy consumption; the water treatment module is transformed from an old container, Low cost, easy to popularize and apply.

Description of drawings

Fig. 1 is the specific structural representation of the system of the present invention;

Figure 2 is a schematic diagram of the structure of the jet flow oxygenation system.

Among them: 1. First-level standard coarse tank; 2. Second-level inter-culture tank; 3. Third-level grow-up tank; 4. Water treatment module; 5. Collection and sedimentation tank; 6. Connecting pipe; 7. Drainage branch pipe; 8 , main drainage pipe; 9, main water inlet pipe; 10, submersible pump; 11, central water retaining plate; 12, jet flow oxygenation system; 13, centrifugal pump; 14, branch water delivery pipe; 15, ejector; 16, suction Intake pipe; 41, fluidized bed; 42, suspended packing; 43, baffle; 44, screen; 45, aerobic filter tank; 46, corrugated plate with holes; 47, anaerobic filter tank; 48, water distribution pipe; 49. Biochemical felt; 410. Water outlet balance pool; 51. Water retaining plate; 52. Self-priming sewage collection pipe; 53. Sewage discharge pipe.

detailed description

The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

A modular circulating water graded aquaculture system, comprising a multi-stage culture pond, a water treatment module, a collection and sedimentation tank, a water intake module, a drainage module and a submersible pump, and the multi-stage culture pond is connected with the collection and sedimentation by the drainage module The pool is connected, the submersible pump is arranged in the collection and sedimentation tank, the water outlet of the submersible pump is connected with the water treatment module, and the water treatment module is connected with the multi-stage culture pond through the water inlet module.

Referring to Fig. 1, wherein the drainage module includes a main drain pipe 8 and a branch pipe 7 for connecting the main drain pipe 8 and the multi-stage culture pond, and similarly, the water inlet module includes a main water inlet pipe 9 and a water inlet branch pipe.

Referring to FIG. 1 , further as a preferred embodiment, the multi-stage culture ponds include a primary standard coarse pond 1 , a secondary interculture pond 2 and a tertiary cultivation pond 3 .

As a further preferred embodiment, there is a height difference between the multi-stage culture ponds, so as to completely discharge the water from the previous stage culture ponds into the subsequent stage culture ponds.

As a further preferred embodiment, the multi-stage culture ponds are all composed of supports and PVC mesh.

Referring to FIG. 1 , as a further preferred embodiment, a central water retaining plate 11 is arranged in each of the multi-stage culture ponds, so that the culture ponds form a ring-shaped racetrack structure.

Referring to FIG. 1 , as a further preferred embodiment, a jet aeration system 12 is provided on both sides of the central water baffle 11 .

Referring to Fig. 2, further as a preferred embodiment, the jet flow oxygenation system 12 includes a centrifugal pump 13, a branch water delivery pipe 14, a plurality of ejectors 15 and an air intake pipe 16; a plurality of ejectors 15 form an array, and the jet flow The direction is parallel to the water baffle, and the suction inlet pipe 16 is positioned at the edge of the culture pond, one end is connected with the jet array, and the other end vertically stretches out from the water surface.

The multi-stage culture ponds are all rectangular in structure, and are separated by a central water retaining plate 11 to form an annular water flow channel. The water pushing directions of the jet flow oxygenation system 12 on both sides of the central water retaining plate 11 are opposite, thereby forming a circular water flow; in the structure shown in Figure 1, the jet flow oxygenation system 12 forms a clockwise water flow in the culture pond.

Referring to FIG. 1 , as a further preferred embodiment, the collection and sedimentation tank 5 is in the shape of an inverted quadrangular prism.

Further as a preferred embodiment, referring to FIG. 1 , the middle part of the bottom surface of the collection and sedimentation tank 5 is parallel to the long direction, and the middle part of the slope near the end of the drainage module is parallel to the short direction.

The collection and sedimentation tank 5 simultaneously has the function of collecting fish/shrimp after growing up and coarse sedimentation during the breeding period.

Referring to FIG. 1 , as a further preferred embodiment, the bottom of the collection and sedimentation tank 5 is provided with a self-priming sewage collection pipe 52 and a sewage discharge pipe 53 that communicate with each other.

Closely connected to the bottom of the above-mentioned long-term water retaining plate, a sewage collection pipe 52 is arranged; the sewage collection pipe is a PVC pipe, and both sides of the pipe are equidistantly slotted to facilitate the formation of negative pressure self-priming sewage collection and sewage discharge. The sewage pipe 53 located at one end of the collection and sedimentation tank is connected. After the effluent water from the culture pond undergoes coarse sedimentation, the submersible pump 10 located at one end of the collection and sedimentation tank 5 lifts the influent treatment system 4 .

Referring to Fig. 1, further as a preferred embodiment, the water treatment module 4 includes a fluidized bed 41, an aerobic filter tank 45, an anaerobic filter tank 47 and an outlet water balance tank 410, the water of the collection and sedimentation tank 5 The water is lifted into the water treatment module 4 by the submersible pump 10, and passes through the fluidized bed 41, the aerobic filter tank 45, the anaerobic filter tank 47 and the water outlet balance tank 410 in turn, and then enters the multi-stage culture tank from the water inlet module.

Referring to Fig. 1, further as a preferred embodiment, the water treatment module 4 includes a suspended filler 42, a baffle plate 43, a corrugated plate with holes 46, a water distribution pipe 48 and a biochemical felt 49; the fluidized bed 41 is provided with a suspended filler 42, baffle plate 43 is set near the end of aerobic filter pool 45, and water flows through retaining net 44 and enters the aerobic filter pool 45 of hanging tool hole corrugated plate 46, after microbial aerobic nitrification, passes through the anaerobic filter pool 47 bottoms The water distribution pipe 48 uniformly discharges water, and then enters the outlet water balance pool 410 after the anaerobic denitrification of microorganisms in the biochemical felt 49 above the water distribution pipe 48. After aeration, degassing and pH adjustment, it enters each culture pond through the water inlet module.

As a further preferred embodiment, the water treatment module 4 is transformed from an old container.

The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent transformations or replacements without violating the spirit of the present invention. These equivalent modifications or replacements are all within the scope defined by the claims of the present application.

Claims (10)

1. A modular circulating water graded aquaculture system, characterized in that: comprising multi-stage culture ponds, water treatment modules, collection and sedimentation tanks, water inlet modules, drainage modules and submersible pumps, the multi-stage culture ponds pass through The drainage module communicates with the collection and sedimentation tank, the submersible pump is arranged in the collection and sedimentation tank, the water outlet of the submersible pump communicates with the water treatment module, and the water treatment module communicates with the multi-stage culture tank through the water inlet module. 2. A modular circulating water graded aquaculture system according to claim 1, characterized in that: said multi-stage aquaculture ponds include a primary standard thick pond, a secondary intermediate aquaculture pond and a tertiary grow-out pond. 3. A modular circulating water graded aquaculture system according to claim 1, characterized in that: a height difference is set between the multi-stage aquaculture ponds for completely draining the water from the previous stage aquaculture ponds into the rear Primary breeding pond. 4. A modular circulating water graded aquaculture system according to claim 1, characterized in that: said multi-stage culture ponds are all composed of brackets and PVC mesh. 5. A modular circulating water graded aquaculture system according to claim 1, characterized in that: said multi-stage culture ponds are all provided with a central water retaining plate, so that the culture ponds form a ring-shaped track structure. 6. A modular circulating water graded aquaculture system according to claim 5, characterized in that: jet aeration systems are arranged on both sides of the central water retaining plate. 7. A modular circulating water graded aquaculture system according to claim 1, characterized in that: the collection and sedimentation tank is an inverted quadrangular platform structure. 8. A modular circulating water graded aquaculture system according to claim 7, characterized in that: the bottom of the collection and sedimentation tank is provided with interconnected self-priming sewage collection pipes and sewage discharge pipes. 9. A kind of modular circulating water graded aquaculture system according to claim 1, characterized in that: the water treatment module includes a fluidized bed, an aerobic filter tank, an anaerobic filter tank and an outlet water balance tank, the The water in the above-mentioned collection and sedimentation tank is lifted into the water treatment module through the submersible pump, and passes through the fluidized bed, aerobic filter tank, anaerobic filter tank and outlet water balance tank in sequence, and then enters the multi-stage culture tank from the water inlet module. 10. A modular circulating water graded aquaculture system according to claim 9, wherein the water treatment module is transformed from an old container.