Simple direct current waterway foundation breeding equipment in mountainous area

Abstract

This utility model discloses a simple direct-flow water-based aquaculture equipment for mountainous areas, including a pre-treatment water module, a land-based circular pond aquaculture unit, and a tailwater treatment module. The pre-treatment water module is located at a high point on the hillside, the land-based circular pond aquaculture unit is located in the middle section of the slope, and the tailwater treatment module is located at the lowest point. The modules are connected by water pipes. The pre-treatment water module includes a sedimentation tank and a filtration and sterilization chamber arranged in series. The filtration and sterilization chamber is located downstream of the sedimentation tank, and the bottom of the filtration and sterilization chamber is connected to the main water supply pipe. The main water supply pipe is laid along the hillside and connects to several branch water pipes. The branch water pipes are connected to the land-based circular pond aquaculture unit. The land-based circular pond aquaculture unit includes several circular ponds. The bottom of the circular ponds is an inverted conical structure, and a drain outlet is located at the center of the bottom of the inverted conical structure. This utility model has the advantages of simple equipment, low cost, and low energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, specifically a simple direct-flow waterbed aquaculture device for mountainous areas. Background Technology

[0002] Traditional land-based recirculating aquaculture systems rely entirely on electricity for operation, resulting in long construction periods, high investment costs, high energy consumption, and complex maintenance. Furthermore, power supply in mountainous areas is often unreliable. With the increasing emphasis on aquatic resource protection by the state, wild fishing has become illegal, and in remote mountainous areas of Tibet, transportation of aquatic products is extremely difficult due to poor transportation. To meet the public's demand for high-quality aquatic protein products, establishing small-scale land-based recirculating aquaculture systems utilizing the abundant water resources of mountainous regions has gradually become a research hotspot. Summary of the Invention

[0003] The purpose of this utility model is to provide a simple direct-flow waterbed aquaculture equipment in mountainous areas, which has the advantages of simple equipment, low cost and low energy consumption, and solves the problems in the existing technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A simple direct-flow water roadbed aquaculture equipment for mountainous areas includes a pre-water treatment module, a land-based circular pond aquaculture unit, and a tailwater treatment module. The pre-water treatment module is located at a high point on the hillside, the land-based circular pond aquaculture unit is located in the middle section of the slope, and the tailwater treatment module is located at the lowest point of the terrain. The modules are connected by water pipes.

[0006] The pre-treatment water module includes a sedimentation tank and a filtration and sterilization chamber arranged in series. The filtration and sterilization chamber is located downstream of the sedimentation tank. The bottom of the filtration and sterilization chamber is connected to the main water supply pipe. The main water supply pipe is laid along the hillside and connected to several branch pipes. The branch pipes are connected to the land-based circular pond aquaculture unit.

[0007] The land-based circular pond aquaculture unit includes several circular ponds, the bottom of which has an inverted conical structure, and a drainage outlet is provided at the center of the bottom of the inverted conical structure;

[0008] The wastewater treatment module includes a sedimentation and filtration collection tank and an irrigation canal. The outlet is connected to the sedimentation and filtration collection tank via a sewage pipe, and the outlet of the sedimentation and filtration collection tank is connected to the irrigation canal.

[0009] Preferably, the sedimentation tank has a two-stage stepped structure, comprising a primary sedimentation tank and a secondary sedimentation tank. The outlet of the primary sedimentation tank is located at 1 / 4 of the height of its side wall and is connected to the secondary sedimentation tank via a water pipe.

[0010] Preferably, the secondary sedimentation tank and the filtration and sterilization chamber are connected, and the interior of the filtration and sterilization chamber is provided with a coarse sand filter layer, a fine sand filter layer and an activated carbon adsorption layer from top to bottom.

[0011] Preferably, the coarse sand filter layer has a thickness of 20-40cm and a sand particle size of 5-10mm; the fine sand filter layer has a thickness of 20-30cm and a sand particle size of 2-6mm; and the activated carbon adsorption layer has a thickness of 15-25cm.

[0012] Preferably, the circular pool body has a water outlet for a water distribution pipe at the top or side, and the cone height of the inverted conical structure is 0.2-0.3 meters, and the cone angle is 50°-70°.

[0013] Preferably, the water distribution pipe is equipped with a first water valve at its outlet end, and the sewage pipe is equipped with a second water valve.

[0014] Preferably, the circular pool is equipped with an oxygenation system, which includes a microporous oxygenation disc, an air supply pipe, and an oxygenation pump. The microporous oxygenation disc is evenly installed on the inner wall of the inverted conical structure and is more than 15cm away from the drain outlet. The oxygenation pump is located on one side of the outer wall of the circular pool. The oxygenation pump is connected to the microporous oxygenation disc through the air supply pipe and is connected to a solar storage battery.

[0015] Preferably, the sedimentation and filtration collection tank is provided with an inclined plate sedimentation zone and a biological filter bed zone. The bottom of the inclined plate sedimentation zone is provided with inclined plates arranged in a row, with an inclination angle of 40°-50° and a plate spacing of 4-6cm. The bottom of the biological filter bed zone is covered with volcanic rock filter media and planted with submerged plants.

[0016] Preferably, the circular pool is further equipped with an intelligent monitoring module, which includes a water quality sensor and an alarm. The water quality sensor is located inside the circular pool, and the alarm is located outside the circular pool. The water quality sensor and the alarm are connected by a signal.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model has a simple structure. It can achieve gravity-fed water conveyance by utilizing the terrain elevation difference, reducing water pump energy consumption. The tailwater is purified and then re-irrigated into farmland, realizing the recycling of water resources and reducing water costs. The three-level modular layout of high-level treatment, mid-stage aquaculture, and low-level tailwater can flexibly adapt to mountainous and sloping terrain and reduce earthwork excavation costs.

[0019] This invention features an inverted conical pond bottom that works in conjunction with a microporous aeration system to create a swirling flow, causing uneaten feed and feces to quickly gather towards the center, increasing sewage discharge efficiency by more than 30%, reducing pollutant retention in the pond, and lowering the risk of aquaculture diseases.

[0020] This utility model features a stepped sedimentation tank and filtration chamber that intercepts impurities in stages. Combined with inclined plates and a biological sedimentation tank, it significantly reduces the concentration of suspended solids in the effluent and decreases the pollution load on surrounding water bodies. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall modular structure of this utility model;

[0022] Figure 2 This is a structural diagram of the pre-treatment water module of this utility model;

[0023] Figure 3 This is a schematic diagram of the land-based circular pond aquaculture unit of this utility model;

[0024] Figure 4 This is a schematic diagram of the wastewater treatment module of this utility model.

[0025] In the diagram: 1. Pre-treatment water module; 101. Sedimentation tank; 101a. Primary sedimentation tank; 101b. Secondary sedimentation tank; 102. Filtration and sterilization chamber; 102a. Coarse sand filter layer; 102b. Fine sand filter layer; 102c. Activated carbon adsorption layer; 103. Main water supply pipe; 104. Distribution pipe; 2. Land-based circular pond aquaculture unit; 201. Sewage pipe; 202. Drainage outlet; 203. Inverted conical structure; 204. Circular pond body; 3. Oxygenation system; 301. Microporous oxygenation disc; 302. Air supply pipe; 303. Oxygenation pump; 304. Solar battery; 4. Wastewater treatment module; 401. Sedimentation and filtration collection tank; 401a. Inclined plate; 401b. Volcanic rock filter media; 401c. Submerged plants; 5. Intelligent monitoring module; 501. Water quality sensor. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To address the problems of complex equipment, high energy consumption, and high cost in existing technologies, the following technical solution is proposed. Please refer to [link / reference needed]. Figure 1-4 ;

[0028] A simple direct-flow water-based aquaculture system for mountainous areas includes a pre-treatment water module 1, a land-based circular pond aquaculture unit 2, an oxygenation system 3, a tailwater treatment module 4, and an intelligent monitoring module 5.

[0029] The overall equipment is distributed in a stepped manner according to the mountainous terrain and supports parallel operation of multiple households. It makes full use of the natural slope of the mountainous area (≥3%) and arranges the equipment in sequence according to the elevation difference. The pre-water treatment module 1 is located at the higher part of the hillside, the land-based circular pond aquaculture unit 2 is located at the middle section of the slope, and the tailwater treatment module 4 is located at the lowest point. The modules are connected by water pipes, and the water flows by gravity through the elevation difference, reducing the dependence on water pumps.

[0030] The pre-treatment water module 1 includes a sedimentation tank 101 and a filtration and sterilization chamber 102.

[0031] The sedimentation tank 101 has a two-stage stepped structure, including a primary sedimentation tank 101a and a secondary sedimentation tank 101b. Mountain spring or stream water is introduced into the primary sedimentation tank 101a through a PVC water pipe for the sedimentation of coarse particles. It is connected to the secondary sedimentation tank 101b through a water pipe, and the secondary sedimentation tank 101b is used for the sedimentation of fine particles.

[0032] The filtration and sterilization chamber 102 is located downstream of the secondary sedimentation tank 101b. The interior of the filtration and sterilization chamber 102 is provided with a coarse sand filter layer 102a, a fine sand filter layer 102b, and an activated carbon adsorption layer 102c from top to bottom. The coarse sand filter layer 102a is 20-40cm thick with sand particles of 5-10mm in diameter. The fine sand filter layer 102b is 20-30cm thick with sand particles of 2-6mm in diameter. The activated carbon adsorption layer 102b is 15-25cm thick. The water flows through the coarse sand filter layer 102a, the fine sand filter layer 102b, and the activated carbon adsorption layer 102c in sequence and flows out from the main water supply pipe 103 connected to the bottom of the filtration and sterilization chamber 102.

[0033] The main water supply pipe 103 is laid along the hillside, with the slope consistent with the terrain to avoid right-angle bends. The main water supply pipe 103 connects to each branch water pipe 104, and the branch water pipe 104 connects to the land-based circular pond aquaculture unit 2.

[0034] The land-based circular pond aquaculture unit 2 includes several circular ponds 204. Each household has one or more circular ponds 204. The circular ponds 204 are scattered in scattered spaces such as hillsides, terraces, and courtyards, without the need for large-scale land leveling. The outlet of the water distribution pipe 104 is located at the top or side of the circular pond 204. Water is continuously injected into the circular pond 204 by gravity flow. The diameter of the circular pond 204 is 4-6 meters, the height is 1.2-1.8 meters, and the bottom is an inverted conical structure 203 with a cone height of 0.2-0.3 meters and a cone angle of 50°-70°. A drain outlet 202 is located at the center of the cone bottom. The slope of the cone bottom ensures that fish feces, uneaten feed, and other waste are collected at the drain outlet within 5 minutes. The drain outlet is connected to the tailwater treatment module 4 through the sewage pipe 201.

[0035] The outlet of the water distribution pipe 104 is equipped with a first water valve 105, and the sewage discharge pipe 201 is equipped with a second water valve 206. When the first water valve 105 and the second water valve 206 are kept open, the water flow rate is controlled by adjusting the valve opening to ensure continuous water renewal. The valve opening can be manually fine-tuned according to the breeding density and water temperature changes, without the need to close it completely. If it is rainy in the mountainous area or the turbidity of the water source exceeds the standard, the first water valve 105 and the second water valve 206 are closed. The top side of the circular pool 204 is equipped with an overflow port and an overflow pipe to prevent the breeding water from overflowing and causing fish to escape. Excess water overflows directly into the sedimentation and filtration collection pool 401.

[0036] The oxygenation system 3 includes an oxygenation pump 303 and a microporous oxygenation disc 301. The oxygenation pump 303 is located on one side of the outer wall of the circular pool 204. The oxygenation pump 303 is connected to the microporous oxygenation disc 301 through an air supply pipe 302. There are one or more microporous oxygenation discs 301, which are evenly installed on the inner wall of the inverted conical structure 203 and are more than 15cm away from the drain outlet to avoid clogging by dirt. The oxygenation pump 303 is equipped with a solar storage battery 304 with a battery capacity of ≥12V / 100Ah.

[0037] The wastewater treatment module 4 includes a sedimentation and filtration collection tank 401 and an irrigation canal. The sedimentation and filtration collection tank 401 is equipped with an inclined plate sedimentation zone and a biological filter bed zone. The bottom of the inclined plate sedimentation zone is equipped with inclined plates 401a arranged in a row. The inclined plates 401a have an inclination angle of 40°-50° and a plate spacing of 4-6cm to facilitate the sedimentation of impurities in the water. The bottom of the biological filter bed zone is covered with volcanic rock filter media 401b and planted with submerged plants 401c such as Myriophyllum spicatum. The plant density is ≥15 plants / square meter to purify the water and absorb harmful substances in the water. The outlet of the sedimentation and filtration collection tank 401 is connected to the irrigation canal through a PE corrugated pipe. The outlet is higher than the canal surface to prevent backflow. The irrigation canal is distributed along the foot of the mountain, and the wastewater eventually flows into the downstream paddy / barley fields.

[0038] The intelligent monitoring module 5 includes a water quality sensor 501 and an alarm installed in the aquaculture unit; each circular pool 204 is equipped with a water quality sensor 501 to monitor the dissolved oxygen, water temperature and pH value of the water. The water quality sensor 501 and the alarm are connected by signal. When the dissolved oxygen is <4mg / L, the water temperature or pH value exceeds the set threshold, or when there is a power failure, an audible and visual alarm is triggered, realizing the function of real-time feedback of water quality parameters, reducing the frequency of manual inspection, and ensuring the stability of aquaculture.

[0039] Working principle: The pre-treatment water module 1 utilizes the natural gravitational potential energy of the high-altitude hillside to allow the water source to flow sequentially through the primary sedimentation tank 101a and the secondary sedimentation tank 101b to complete the coarse particle sedimentation. Then, it passes through the coarse sand layer 102a, fine sand layer 102b, and activated carbon layer 102c of the filtration and sterilization chamber 102 for step-by-step purification. The treated clean water is transported along the slope of the hillside to the middle-section land-based circular pond aquaculture unit 2 via the main water supply pipe 103, and then injected into the circular pond body 204 through the outlet of the distribution pipe 104. The inverted conical bottom 2... 03. The cone angle design of 50°-70° guides uneaten feed and feces to the central drain outlet 202. Combined with the rising air bubble flow generated on the inner wall of the microporous aeration disc 301 in the aeration system 3, oxygenation is achieved while simultaneously creating a swirling current in the pond to enhance wastewater discharge efficiency. The wastewater enters the sedimentation and filtration collection tank 401 in the low-potential-energy zone through the wastewater discharge pipe 201. After solid-liquid separation is accelerated by the inclined plate 401a, the upper layer of clear water is guided through a PE corrugated pipe into an agricultural irrigation canal for resource recycling, while the bottom sediment is cleaned periodically. The intelligent monitoring module 5 connects to an external alarm signal via the in-pond water quality sensor 501 to provide real-time feedback on aquaculture environment parameters.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A simple direct-flow water-based aquaculture system for mountainous areas, comprising a pre-treatment water module (1), a land-based circular pond aquaculture unit (2), and a tailwater treatment module (4), characterized in that, The pre-treatment water module (1) is located at a high point on the hillside, the land-based circular pond aquaculture unit (2) is located at a mid-slope, and the tailwater treatment module (4) is located at the lowest point. The modules are connected by water pipes. The pre-treatment water module (1) includes a sedimentation tank (101) and a filtration and sterilization chamber (102) arranged in series. The filtration and sterilization chamber (102) is located downstream of the sedimentation tank (101). The bottom of the filtration and sterilization chamber (102) is connected to the main water supply pipe (103). The main water supply pipe (103) is laid along the hillside and connected to several branch pipes (104). The branch pipes (104) are connected to the land-based circular pond aquaculture unit (2). The land-based circular pond aquaculture unit (2) includes several circular ponds (204), the bottom of which is an inverted conical structure (203), and a drain outlet (202) is provided at the center of the cone bottom of the inverted conical structure (203). The tailwater treatment module (4) includes a sedimentation and filtration collection tank (401) and a farmland irrigation canal. The drain outlet (202) is connected to the sedimentation and filtration collection tank (401) through a sewage pipe (201), and the outlet of the sedimentation and filtration collection tank (401) is connected to the farmland irrigation canal.

2. The simple direct-flow waterway aquaculture equipment for mountainous areas according to claim 1, characterized in that, The sedimentation tank (101) has a two-stage stepped structure. The sedimentation tank (101) includes a primary sedimentation tank (101a) and a secondary sedimentation tank (101b). The outlet of the primary sedimentation tank (101a) is located at 1 / 4 of the height of its side wall and is connected to the secondary sedimentation tank (101b) through a water pipe.

3. The simple direct-flow waterway aquaculture equipment for mountainous areas according to claim 2, characterized in that, The secondary sedimentation tank (101b) and the filtration and sterilization chamber (102) are connected. The interior of the filtration and sterilization chamber (102) is provided with a coarse sand filter layer (102a), a fine sand filter layer (102b) and an activated carbon adsorption layer (102c) from top to bottom.

4. A simple direct-flow waterway aquaculture equipment for mountainous areas according to claim 3, characterized in that, The coarse sand filter layer (102a) has a thickness of 20-40cm and a sand particle size of 5-10mm; the fine sand filter layer (102b) has a thickness of 20-30cm and a sand particle size of 2-6mm; and the activated carbon adsorption layer (102c) has a thickness of 15-25cm.

5. A simple direct-flow waterway aquaculture equipment for mountainous areas according to claim 4, characterized in that, The circular pool (204) has a water outlet for a water distribution pipe (104) on its top or side. The cone height of the inverted conical structure (203) is 0.2-0.3 meters and the cone angle is 50°-70°.

6. A simple direct-flow waterway aquaculture equipment for mountainous areas according to claim 5, characterized in that, The water distribution pipe (104) is equipped with a first water valve (105) at the water outlet end, and the sewage pipe (201) is equipped with a second water valve (206).

7. A simple direct-flow waterway aquaculture system for mountainous areas according to claim 6, characterized in that, An oxygenation system (3) is provided inside the circular pool (204). The oxygenation system (3) includes a microporous oxygenation disc (301), an air supply pipe (302), and an oxygenation pump (303). The microporous oxygenation disc (301) is installed on the inner wall of the inverted conical structure (203) and is more than 15cm away from the drain outlet (202). The oxygenation pump (303) is located on one side of the outer wall of the circular pool (204). The oxygenation pump (303) is connected to the microporous oxygenation disc (301) through the air supply pipe (302). The oxygenation pump (303) is connected to the solar storage battery (304).

8. A simple direct-flow waterway aquaculture system for mountainous areas according to claim 7, characterized in that, The sedimentation and filtration collection tank (401) is equipped with an inclined plate sedimentation zone and a biological filter bed zone. The bottom of the inclined plate sedimentation zone is provided with inclined plates (401a) arranged in a row. The inclination angle of the inclined plates (401a) is 40°-50° and the plate spacing is 4-6cm. The bottom of the biological filter bed zone is covered with volcanic rock filter media (401b) and planted with submerged plants (401c).

9. A simple direct-flow waterway aquaculture equipment for mountainous areas according to claim 8, characterized in that, The circular pool (204) is also equipped with an intelligent monitoring module (5). The intelligent monitoring module (5) includes a water quality sensor (501) and an alarm. The water quality sensor (501) is located inside the circular pool (204), and the alarm is located outside the circular pool (204). The water quality sensor (501) is connected to the alarm signal.

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