Water pretreatment sand filtration device for aquaculture

Abstract

The utility model discloses a water pretreatment sand filtering device for aquaculture, and relates to the technical field of aquaculture. Comprising a sand drain tank, a tank cover is arranged at the top of the sand drain tank, a water pump support is arranged in the sand drain tank, a submersible pump is mounted on the water pump support, and a water supply pipe extending to the outside of a tank opening of the sand drain tank is mounted on the submersible pump; a plurality of flange openings are formed in the side wall of the sand well tank in the circumferential direction, a water collecting pipe is inserted into the flange openings, a plurality of water collecting holes are evenly formed in the side wall of the water collecting pipe, the water collecting pipe is wrapped with a hard plastic net piece, and the hard plastic net piece is sleeved with a bolting silk net bag. The device is suitable for various application scenes, including but not limited to circulating water and industrial aquaculture modes, can be flexibly adjusted according to actual conditions such as construction sites and aquaculture water requirements, solves the problems of high difficulty in pretreatment, use and maintenance of aquaculture water, high cost, high risk and the like, and is suitable for large-scale popularization and application. The guarantee is provided for the high-standard source water quality requirement of a novel culture mode.

Description

Technical Field

[0001] The utility model relates to the technical field of aquaculture, in particular to a sand filter device for pre-treatment of aquaculture water. Background Art

[0002] With the development of aquaculture, the breeding model has gradually transitioned from extensive breeding in outdoor ponds to factory-based and intensive breeding. The change in breeding model has also gradually increased the requirements for the quality of aquaculture water. Currently, the quality of natural source water can no longer meet the needs of the new breeding model.

[0003] For freshwater aquaculture, if the farm is located in an area with abundant groundwater resources, the source water for aquaculture is usually groundwater, which is a huge waste of water resources. For farms located in areas with scarce groundwater resources, surface water is usually used for aquaculture. The source water is treated by microfiltration machines, sand well tanks and other equipment before use, which increases the cost of aquaculture water treatment. In addition, the difficulty of surface water treatment is greatly affected by the season, especially during the high temperature period in summer, when a large number of aquatic organisms burst out, resulting in a sharp increase in the difficulty of water purification and water use risks.

[0004] For marine aquaculture, the source water for aquaculture is mostly obtained by digging wells in coastal tidal flats. When using water, a large number of PVC water collection pipes are laid under the sand layer at the seashore to collect seawater filtered by the sand layer, and water is taken by self-priming pump power output based on the tidal law. The water intake cost is low, but due to the head and power limitations of the self-priming pump, the water supply distance is short, and the laying of a large number of water collection pipes causes serious pollution to coastal areas. For areas where it is inconvenient to take water, multi-stage water storage is used for supply, that is, tidal water is introduced into the water supply channel based on the tidal law, and then the water is introduced into the water storage pond through a water pump, and then the water is pumped from the water storage pond to the aquaculture farm. After arriving at the aquaculture farm, the water is processed and utilized through sand filter tanks, microfiltration machines, etc. The water use cost and risk are high, especially for water use in high temperature seasons. On the one hand, the increase in water treatment processes also increases the water treatment cost, and the operation and maintenance costs of water treatment equipment are high. On the other hand, adding a link adds an additional risk, including biological risk and operation risk. Utility Model Content

[0005] The main purpose of the utility model is to provide a sand filter device for pre-treatment of aquaculture water to solve the above problems.

[0006] To achieve the above-mentioned purpose, the utility model provides a sand filtration device for pre-treatment of water for aquaculture, comprising a sand well tank, a tank cover is arranged on the top of the sand well tank, a water pump bracket is arranged in the sand well tank, a submersible pump is installed on the water pump bracket, and a water supply pipe extending to the outside of the tank mouth of the sand well tank is installed on the submersible pump; a plurality of flange openings are arranged on the circumferential direction of the side wall of the sand well tank, a water collecting pipe is inserted in the flange opening, a plurality of water collecting holes are evenly opened on the side wall of the water collecting pipe, the outside of the water collecting pipe is wrapped with a hard plastic mesh, and the outside of the hard plastic mesh is covered with a sieve mesh bag.

[0007] Furthermore, the sand well tank and the tank cover are both made of fiberglass, and the water collecting pipe is made of PE.

[0008] Furthermore, a liquid level sensor is provided on the submersible pump.

[0009] Furthermore, an escalator is provided in the sand well tank.

[0010] Furthermore, the diameter of the flange mouth is 200 mm, the diameter of the water collection hole is 40 mm, the spacing between the water collection holes is 40 mm, the aperture of the hard plastic mesh is 10 mm, and the aperture of the sieve silk bag is 40 meshes.

[0011] Furthermore, three groups of flanges are evenly arranged in the circumferential direction of the side wall of the sand well tank, with two flanges in each group, and the two flanges in the same group are arranged in parallel with an interval of 400 mm.

[0012] Furthermore, it also includes a tank base, which is located below the sand well tank and is composed of multiple wooden piles.

[0013] The utility model has the following beneficial effects:

[0014] The utility model is suitable for various application scenarios, including but not limited to circulating water and factory farming models. It can be flexibly adjusted according to the actual conditions such as the construction site and the demand for aquaculture water, such as the size of the sand well tank and the installation of the tank base. The sand well tank body is made of fiberglass with the characteristics of easy installation, high strength, corrosion resistance and aging resistance. The PE material is selected to increase the strength and corrosion resistance of the water collecting pipe under the sand layer, and has a long service life. It is more environmentally friendly and has a longer service life than laying a large number of PVC water collecting pipes under the traditional sand layer. It is easy to operate, and each component can be reused. A submersible pump can be used for water supply, which has low energy consumption and effectively extends the head. Each module is designed separately to provide convenience for installation and maintenance. This device solves the problems of high difficulty, high cost and high risk in the use and maintenance of pre-treatment of aquaculture water, and provides a guarantee for the high-standard source water quality requirements of new aquaculture models. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1This is a schematic diagram of a sand filter device for pre-treatment of aquaculture water proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the arrangement of water collecting pipes of a sand filter device for pre-treatment of aquaculture water proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the tank base arrangement of a sand filter device for pre-treatment of aquaculture water proposed by the utility model.

[0018] In the figure: 1-tank cover; 2-sand well tank; 3-water supply pipe; 4-escalator; 5-liquid level sensor; 6-submersible pump; 7-water pump bracket; 8-flange; 9-water collecting pipe; 10-tank base. DETAILED DESCRIPTION

[0019] In order to achieve the above-mentioned purpose and effect, the technical means and structure adopted by the utility model are described in detail with reference to the accompanying drawings for the preferred embodiments of the utility model and their features and functions.

[0020] like Figure 1-3 As shown, the utility model provides a sand filtration device for pre-treatment of aquaculture water, including a sand well tank 2, with a specification of 3 meters in diameter and 4 meters in height, which can be adjusted according to the needs of specific implementation scenarios. A tank cover 1 is arranged on the top of the sand well tank 2 to prevent external water caused by wind and waves from entering the sand well tank 2 and causing pollution; the sand well tank 2 and the tank cover 1 are both made of black fiberglass, which is resistant to exposure and corrosion, can achieve a full shading effect, and can effectively prevent the breeding of aquatic organisms in the sand well tank 2; a water pump bracket 7 and an escalator 4 are arranged in the sand well tank 2, and the water pump bracket 7 A submersible pump 6 is installed on the submersible pump 6, and a water supply pipe 3 extending to the outside of the tank mouth of the sand well tank 2 is installed on the submersible pump 6, and a liquid level sensor 5 is arranged on the submersible pump 6; by arranging a water pump bracket 7, the submersible pump 6 can be prevented from being blocked by deposited mud during operation, and the water pump bracket 7 can also be used as a base support for the escalator 4, which is convenient for workers to carry out equipment maintenance and maintenance; the submersible pump 6 is selected as the aquaculture water output equipment, which has the characteristics of high head and low energy consumption, and meets the long-distance water supply. By equipping it with a liquid level sensor 5, the submersible pump 6 can be prevented from dry burning, thereby reducing the operation risk.

[0021] Three groups of flange openings 8 are evenly arranged on the circumferential direction of the side wall of the sand well tank 2, and each group is provided with two flange openings. The two flange openings 8 in the same group are arranged in parallel with an interval of 400mm. The flange opening 8 is about 1 meter away from the bottom of the sand well tank 2. The outer diameter of the flange opening is 200mm and the inner diameter is 180mm. A water collecting pipe 9 is inserted in the flange opening 8. The water collecting pipe 9 is made of PE material with a diameter of 180mm. A plurality of water collecting holes are evenly opened on the side wall of the water collecting pipe 9. The diameter of the water collecting holes is 40mm, and the spacing between the water collecting holes is 40mm. The water collecting pipe 9 is wrapped with a hard plastic mesh with a pore size of 10mm to increase the supporting capacity, and a 40-mesh sieve silk mesh bag is covered on the outermost layer to prevent mud and sand from entering the pipe cavity.

[0022] During the installation of the device, the tank base 10 is selected according to the conditions of the construction site. For construction sites with thick silt layers, wooden piles are used to set the tank base 10, and the wooden piles are connected to fix the tank to prevent the tank from sinking during the operation of the facility. The wooden piles can be larch, 3 meters long, with a small head diameter of 100mm. The interval of the wooden piles around the tank base 10 is 0.5 meters, and the interval of the inner circle is 1 meter.

[0023] When installing the device, first use an excavator to dig a pit with a diameter of 5 meters and a depth of 2.4 meters under the construction site, install the tank base 10 at the bottom of the pit, and extend a square groove with a width of 2 meters and a length of 6 meters in three directions. Pave the bottom of the square groove with a thickness of 200mm with stones, and then hang the device into the pit. After laying 400mm stones on it, fill it with sand or slightly raise it.

[0024] The above description is only the preferred embodiment of the utility model, not all embodiments. Anyone should be aware that structural changes made under the inspiration of the utility model, and all technical solutions that are the same or similar to the utility model, belong to the protection scope of the utility model.

Claims

1. A sand filter device for pre-treatment of water for aquaculture, characterized in that: It comprises a sand well tank, a tank cover is arranged on the top of the sand well tank, a water pump bracket is arranged in the sand well tank, a submersible pump is installed on the water pump bracket, and a water supply pipe extending to the outside of the tank mouth of the sand well tank is installed on the submersible pump; a plurality of flange openings are arranged on the circumferential direction of the side wall of the sand well tank, a water collecting pipe is inserted in the flange opening, a plurality of water collecting holes are evenly opened on the side wall of the water collecting pipe, the outside of the water collecting pipe is wrapped with a hard plastic mesh, and the outside of the hard plastic mesh is covered with a sieve mesh bag.

2. A sand filter device for pre-treatment of aquaculture water according to claim 1, characterized in that: The sand well tank and the tank cover are both made of glass fiber reinforced plastics, and the water collecting pipe is made of PE material.

3. A sand filter device for pre-treatment of aquaculture water according to claim 1, characterized in that: The submersible pump is provided with a liquid level sensor.

4. A sand filter device for pre-treatment of aquaculture water according to claim 1, characterized in that: An escalator is also provided in the sand well tank.

5. A sand filter device for pre-treatment of aquaculture water according to claim 1, characterized in that: The diameter of the flange mouth is 200 mm, the diameter of the water collection hole is 40 mm, the spacing between the water collection holes is 40 mm, the aperture of the hard plastic mesh is 10 mm, and the aperture of the sieve silk mesh bag is 40 meshes.

6. A sand filter device for pre-treatment of aquaculture water as claimed in claim 5, characterized in that: The side wall of the sand well tank is evenly provided with three groups of flanges in the circumferential direction, each group is provided with two flanges, and the two flanges in the same group are arranged in parallel with an interval of 400 mm.

7. A sand filter device for pre-treatment of aquaculture water according to claim 1, characterized in that: It also includes a tank base, which is located below the sand well tank and is composed of multiple wooden piles.

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