Pool sterilization device for green culture of shrimps and use method thereof

Abstract

The invention belongs to the technical field of aquaculture equipment, and particularly relates to a water tank sterilization device for green culture of shrimps and a use method of the water tank sterilization device. The air interference assemblies are arranged on the inner side and the outer side of the pool body. The moving assembly is movably arranged in the U-shaped supporting frame. A movable plate is movably arranged at the top end of the U-shaped supporting frame, a plurality of stirring bins are fixed to the top end of the movable plate, a water pipe is jointly installed at the top ends of the stirring bins, stirring rods are installed at the coupling ends of the second motors, and first windproof electric spray heads are installed on the front faces of the stirring bins correspondingly. The other end of the top end of the movable plate is fixedly connected with a mixing bin, after different conditions of water quality in a water pool are detected, corresponding devices are started to spray corresponding bacterial liquid, different probiotics have different functional characteristics, and organic pollutants and harmful bacteria can be more accurately removed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of aquaculture equipment, and particularly relates to a pond sterilization device for green shrimp culture and a use method thereof. BACKGROUND

[0002] Vannamei, also known as South American white prawn, has become one of the prawn varieties with the highest global aquaculture yield due to its fast growth speed, strong adaptability, delicious meat and other characteristics, and occupies a pivotal position in the aquaculture industry in China. With the improvement of people's living standards, the market demand for vannamei continues to grow, which also promotes the continuous expansion of vannamei culture scale. The culture pond can be sterilized by the inoculation of bacillus, yeast, lactic acid bacteria and the like.

[0003] I. Inoculation scenario of bacillus Too much organic matter: When the water transparency decreases and the ammonia nitrogen or nitrite content increases, it indicates that the organic matter is not completely decomposed, at which time the bacillus can be inoculated to accelerate the decomposition of organic matter and reduce the concentration of harmful substances.

[0004] Excessive algae reproduction: If blue-green algae or green algae outbreak occurs in the water body, bacillus can inhibit the growth of harmful algae by competing for nutrients and restore the ecological balance of the water body.

[0005] Severe bottom mud pollution: With the extension of the culture time, the residual feed and feces accumulate at the bottom of the pond, and the oxygen consumption increases. Bacillus can decompose organic matter in the bottom mud and reduce harmful gases generated by anaerobic fermentation.

[0006] II. Inoculation scenario of yeast Low feed conversion rate, promote digestion and absorption: Yeast is rich in vitamin B and digestive enzymes, which can be mixed into feed for feeding to improve the digestion efficiency of vannamei and reduce residual feed pollution; stress period supplement: when the shrimp fry is released, the water is changed or the weather suddenly changes, the shrimp body is prone to stress reaction, at which time yeast can be fed to enhance the immunity.

[0007] When the water body is out of balance, supplement trace elements: yeast can synthesize various amino acids and trace elements, improve the nutrient structure of the water body, promote the reproduction of plankton, and provide natural bait for the shrimp fry.

[0008] III. Inoculation scenario of lactic acid bacteria When the pH value is too high, adjust the acid-base degree: lactic acid bacteria can produce lactic acid through fermentation to reduce the pH value of the water body, which is suitable for use in water bodies with a pH value of more than 8.5. However, it should be noted that if the pH value is lower than 7.5, excessive inoculation should be avoided.

[0009] Intestinal health maintenance, mixed feeding: lactic acid bacteria can colonize the shrimp intestinal tract, inhibit the proliferation of harmful bacteria, prevent enteritis and white feces disease. When the water quality is clear or turbid, the water quality is too clear: if the transparency of the water body is too high, it indicates that there is not enough plankton, and lactic acid bacteria can promote the growth of algae and increase the fertility of the water body; turbid water: if there is too much suspended matter in the water body, lactic acid bacteria can decompose organic debris to improve transparency, but it needs to be combined with oxygenation measures.

[0010] The existing aquaculture sterilization device in use, for example, the Chinese invention patent with publication number CN210959987U discloses a sea cucumber breeding sterilization device, which comprises a body and a sterilization cavity. A support plate is arranged in the body. An equipment cavity and a sterilization cavity are formed below and above the support plate, respectively. A flow divider is arranged in the sterilization cavity and connected to the upper end surface of the support plate by bolts. The utility model adopts a base and a top seat to clamp the two ends of the ultraviolet lamp tube and is connected to the support plate and the top cover by bolts, respectively. The structure is more stable. The top ends of the two groups of spiral water on the same side are connected by a connecting pipe. The filtered breeding water can be divided by the flow divider and introduced into the spiral water pipes on both sides. The breeding water in the spiral water pipes is sterilized by the ultraviolet lamp tube. The spiral water pipes are wrapped outside the ultraviolet lamp tube, the irradiation coverage is higher, and the sterilization efficiency is higher.

[0011] However, when using probiotics for pool sterilization, it is difficult to specifically sterilize according to the water quality in the pool. Different aquaculture ponds are easily affected by various conditions, making it difficult to form scientific and green aquaculture. The aquaculture staff needs to judge and spray probiotics by themselves. In addition, in some aquaculture ponds, excrement and feed are scattered everywhere, which may be around the pool and at different depths of the pool. The excrement and feed of shrimps at different parts of the pool are difficult to discharge by the sewage discharge device.

[0012] In view of this, we propose a pool sterilization device for shrimp green aquaculture. SUMMARY

[0013] The purpose of the present application is to provide a pool sterilization device for shrimp green aquaculture and a method for using the same to solve the problems raised in the background art.

[0014] Therefore, the present application provides a pool sterilization device for shrimp green aquaculture, comprising: A pool body, a sewage pipe is connected to the bottom end of the pool body, a water inlet is connected to one side of the pool body, an arc-shaped sieve is fixedly connected to the bottom end of the inner wall of the pool body, and a U-shaped support frame is arranged on the outside of the pool body; An air disturbance assembly is arranged on the inside and outside of the pool body and is used to disturb the sediments in the pool body; The moving assembly is movably arranged inside the U-shaped support frame and used for moving the sterilization device. A plurality of stirring bins are fixed to the top end of the moving plate, a water pipe is installed at the top end of the plurality of stirring bins, a second motor is installed at the top end of each of the plurality of stirring bins, a stirring rod is installed at the coupling end of the plurality of second motors, a first windproof electric nozzle is installed at the front of each of the plurality of stirring bins, a mixing bin is fixedly connected to the other end of the top end of the moving plate, a second windproof electric nozzle is communicated to one end of the mixing bin, and a water pump is installed at the center of the top end of the moving plate. The feeding assembly is arranged at the front of the moving plate and used for quantitatively feeding a plurality of bacteria.

[0015] In the above technical scheme, further, the air interference assembly comprises a support plate, the support plate is fixed on one side of the water tank body through screws, an air input pipe is fixed to the top end of the support plate, one side of the air input pipe is connected with the Roots blower, the other side of the air input pipe is communicated with the Roots blower, two ends of the other side of the air input pipe are respectively communicated with auxiliary pipes, valves are respectively installed on the surfaces of the two auxiliary pipes, the bottom ends of the auxiliary pipes are communicated with two air distribution pipes, the two air distribution pipes are communicated through a connecting pipe, the bottom ends of one group of the air distribution pipes are communicated with an oxygen inlet pipe, the top end is fixedly connected with a fixing column, the bottom end of the fixing column is communicated with an oxygen inlet pipe, the other end of the oxygen inlet pipe is communicated with a fixing column, a plurality of air outlet holes are respectively and equidistantly arranged on the surfaces of the two air distribution pipes and the fixing column, the plurality of air outlet holes are arranged in an inclined manner, the inclination angles of the plurality of air outlet holes are different, and the air outlet holes on the surfaces of the two air distribution pipes are arranged in an up-down inclined manner. The present application can reduce the aggregation of the excrement and feed of the marine shrimp at the four corners of the water tank, the excrement and feed can be pushed to the top of the arc screen by the water flow, the fixing column can reduce the aggregation of the excrement and feed in the middle of the water tank and at the depth of the water tank, the aggregation of the excrement and feed at different positions is reduced, the excrement and feed can be pushed to the top of the arc screen by the interference and the action of gravity, so as to be filtered to the bottom end of the water tank body and finally discharged. The excrement, residual feed and other pollutants in the aquaculture tank can decompose to produce harmful substances such as ammonia nitrogen and nitrite, and a large number of harmful bacteria can also breed, which reduces the concentration of harmful substances in the water body. Discharging the sewage first can provide a cleaner and healthier living environment for the shrimp.

[0016] In the above technical scheme, further, the moving assembly includes a ball screw, the ball screw is rotatably inserted in the U-shaped support frame, a first motor is fixedly installed on one side of the ball screw and the U-shaped support frame, a second motor is fixedly connected on the inner wall of the U-shaped support frame, a moving column is movably sleeved on the ball screw and the second motor, a moving plate is fixedly connected to the top end of the moving column, and the moving column is movably inserted into the top end of the U-shaped support frame. The ball screw is driven to rotate by the first motor, and the moving plate and the spraying device can be moved and sprayed at different positions of the water tank by the clockwise and counterclockwise rotation of the first motor, thereby increasing the uniformity of spraying and the sterilization effect, and protecting the environment for the growth of Litopenaeus vannamei.

[0017] In the above technical scheme, further, the U-shaped support frame is rotatably inserted with a ball screw, a first motor is fixedly installed on one side of the ball screw and the U-shaped support frame, a moving column is movably sleeved on the surface of the ball screw, and a round rod is movably inserted into the two sides of the moving column. The direction of the stirring bin movement can be limited, the offset and displacement of the stirring bin and the moving plate after long-term use can be reduced, and the service life is prolonged.

[0018] In the above technical scheme, further, the feeding assembly includes a conveying pipe, one end of the conveying pipe is fixedly connected to the top end of the stirring bin, a spiral feeding shaft is rotatably inserted into the conveying pipe, a third motor is fixedly installed on one side of the spiral feeding shaft and the conveying pipe, and a chute is communicated with the upper and lower ends of the conveying pipe. A plurality of stirring bins are connected to the conveying pipe through a water pipe, a storage bin is fixedly connected to the top end of the conveying pipe, and a plurality of storage bins are connected to the conveying pipe through the chute. The amount of bacteria powder sprayed can be selected according to the water quality environment, and suitable sterilization liquid is provided for water quality in different situations.

[0019] In the above technical scheme, further, the bottom end of the water tank body is shaped like a pot bottom, the bottom end of the sewage pipe is connected with a sewage pump through a pipeline, the shape of the arc screen is shaped like an inverted pot bottom, the aperture of the arc screen is about 0.25 mm, and the water tank body is provided with a dissolved oxygen sensor, a pH value sensor, an ammonia nitrogen sensor, a nitrite sensor and a temperature sensor. The excrement, residual food and other pollutants can be collected at the bottom end, which is convenient for centralized sewage treatment, thereby reducing the bacteria in the water quality. The aperture of the arc screen can screen out the excrement, residual food and other pollutants, and also blocks the entry of Litopenaeus vannamei. The dissolved oxygen sensor, the pH value sensor, the ammonia nitrogen sensor, the nitrite sensor and the temperature sensor can detect and identify different situations of the water quality, so that the corresponding motor, water pump and electromagnetic valve can be started through the controller, and the automatic treatment can reduce the time input of the breeders.

[0020] Further, the air input pipe surface is located above the stirring bin, and an electromagnetic valve is installed at the air input pipe surface, one side of the air input pipe is fixedly connected with a water pump, the water pump is provided with multiple water inlets and one water outlet, the water inlets of the multiple water pumps are respectively connected with the stirring bin through water pipes, the water pipes extend to the end of the stirring bin and extend to the bottom end of the stirring bin, and the water inlets of the water pump are connected with the mixing bin through the water pipes, so that the mixed different bacterial liquids can be pumped into the mixing bin, and multiple bacterial liquids can be sprayed at the same time, thereby meeting different use scenes and use modes.

[0021] Further, the connecting pipe and the two air distribution pipes are fixed to the inner wall of the water pool body, the oxygen inlet pipe is fixed to the bottom end of the inner wall of the water pool body, and the fixed column is fixedly inserted into the middle of the top end of the arc sieve, which helps to increase the water body oxygen, promote the water body flow and material exchange, create a good living environment for prawns, and form waves and water flow in the aquaculture pond. When the excrement and feed are suspended in the water, the power of the water flow will push them to move, and in this process, the excrement and feed will be affected by gravity, and the water flow fluctuation can break their relatively stable suspended state, making them more easily sink downward under the action of gravity, thereby facilitating subsequent cleaning work.

[0022] Further, the top end of the multiple stirring bins is fixedly connected with a conveying pipe, the upper and lower ends of the multiple conveying pipes are respectively connected with a chute, a spiral feeding shaft is rotatably inserted into the multiple conveying pipes, and a third motor is jointly installed on one side of the spiral feeding shaft and the top end of the moving plate, so that the bacterial powder can smoothly fall, and the amount of the bacterial powder can be controlled, and automatic quantitative feeding is realized.

[0023] The beneficial effects of the present application are: 1. The water pool sterilization device for green shrimp breeding and the use method thereof, after detecting different conditions of the water quality in the water pool, corresponding devices are started to spray corresponding bacterial liquids, different probiotics have different functional characteristics, organic pollutants and harmful bacteria can be more accurately removed, accumulation of organic matter can be reduced to cause water quality deterioration, water body odor and other problems, a clean living environment is provided for shrimps, the use of the sterilization device for accurate probiotic feeding can improve water quality and enhance the immunity of shrimps, and the probability of shrimp disease is reduced, thereby reducing the frequency and amount of antibiotics and other drugs for disease prevention and treatment, which not only can reduce the breeding cost, but also can reduce the drug residues in shrimps, improve the safety and market competitiveness of shrimp products, the use of the device for regular and quantitative spraying of probiotics for water quality purification and disease prevention and treatment meets the concept of green breeding, is beneficial to the protection of water ecological environment, and realizes the sustainable development of the shrimp breeding industry.

[0024] 2. The pond sterilization device for green shrimp farming and its use method can activate the air interference device before spraying the bacterial liquid to create water flow to play a role. It can form waves and water flow in the farming pond. When excrement and bait are suspended in the water, the force of the water flow will push them to move. In this process, the excrement and bait will be affected by gravity. The water flow fluctuations can break their originally relatively stable suspended state, making it easier for them to sink downward under the action of gravity, thereby facilitating subsequent cleaning work.

[0025] 3. The pond sterilization device for green shrimp farming and its use method, after the bacterial liquid is sprayed, can be restarted to form waves and water currents in the farming pond, fully promoting the uniformity between the bacterial liquid and the pond water, as well as between the bacterial liquid and harmful bacteria, further reducing the Vibrio in the pond water, inhibiting Vibrio parahaemolyticus, Vibrio harveyi, etc., helping to increase the distribution area of ​​the bacterial liquid in the pond, helping it move to different positions, and increasing the sterilization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is one of the three-dimensional structural diagrams of the present invention; Figure 2 It is a schematic cross-sectional view of the main structure of the pool of the present invention; Figure 3 Is a schematic diagram of the gas pipe structure of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention; Figure 5 Is a schematic diagram of the ball screw structure of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention; Figure 7 It is a schematic diagram of the delivery pipe structure of the present invention; Figure 8 Is a schematic diagram of the internal structure of the mobile column of the present invention; Figure 9 Is a schematic diagram of the internal structure of the delivery pipe of the present invention; Figure 10 It is a structural schematic diagram of the mixing bin of the present invention.

[0027] The marks in the figure are: 1, pool body; 2, sewage pipe; 3, U-shaped support frame; 4, Roots blower; 5, water inlet; 6, fixed column; 7, arc screen; 8, air input pipe; 9, support plate; 10, auxiliary pipe; 11, connecting pipe; 12, oxygen inlet pipe; 13, air distribution pipe; 14, air exhaust hole; 15, No. 1 motor; 16, moving plate; 17, stirring bin; 18, ball screw; 19, No. 2 motor; 20, conveying pipe; 21, storage bin; 22, No. 1 windproof electric nozzle; 23, No. 3 motor; 24, water pipe; 25, stirring rod; 26, No. 2 windproof electric nozzle; 27, spiral feeding shaft; 28, trough; 29, mixing bin; 30, water pump; 31, round rod; 32, water pipe; 33, moving column; 34, dissolved oxygen sensor; 35, pH value sensor; 36, ammonia nitrogen sensor; 37, nitrite sensor; 38, temperature sensor. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0029] In the description of the present application, it should be noted that the terms used herein are only intended to describe the specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The technology, methods and devices known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the technology, methods and devices should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0030] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order. It is to be understood that the data so distinguished can occur in any order. The terms "first", "second", and the like are used to distinguish between two instances of a similar object and do not imply a requirement that the two objects be present in either ascending or descending order. Furthermore, the terms "comprise", "comprising", "include", "including", and the like are used herein to indicate the presence of the stated feature or object but do not preclude the presence or addition of one or more other features or objects. The terms "and / or" and "or" as used herein refer to a total package of one, some, or all of the associated listed items.

[0031] It should be noted that in the description of the present application, the terms "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", and "top", "bottom", and the like as terms of reference are used for convenience only, and do not necessarily indicate the specific orientation or configuration of the apparatus or elements being referred to. The terms "inner", "outer" refer to the inner and outer sides of the profile of the respective components.

[0032] It should be noted that in the present application, the terms "comprise", "comprising", or any other variant thereof are intended to cover non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not limited to those elements, but can also include other elements not expressly listed, or inherent to such processes, methods, articles, or apparatuses. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order, for example, the described methods can be performed in an order different from that described, and various steps can be added, omitted, or combined. In addition, features described with reference to certain examples can be combined in other examples.

[0033] Embodiment 1: Please refer to Figures 1-10 As shown in the drawings, the present embodiment provides a pool sterilization device for green shrimp culture.

[0034] It comprises a pool body 1, a sewage pipe 2 is arranged in communication at the bottom end of the pool body 1, a water inlet 5 is arranged in communication at one side of the pool body 1, an arc-shaped screen 7 is fixedly connected to the bottom end of the inner wall of the pool body 1, and a U-shaped support frame 3 is arranged on the outer side of the pool body 1; an air interference assembly is arranged on the inner and outer sides of the pool body 1 and is used for disturbing the deposits in the pool body 1; a moving assembly is movably arranged in the interior of the U-shaped support frame 3 and is used for moving a sterilization device; a moving plate 16 is movably arranged at the top end of the U-shaped support frame 3, a plurality of stirring bins 17 are fixed to the top end of the moving plate 16, a water pipe 32 is jointly arranged at the top end of the plurality of stirring bins 17, a second motor 19 is arranged at the top end of each of the plurality of stirring bins 17, a stirring rod 25 is arranged at the coupling end of the plurality of second motors 19, a first windproof electric nozzle 22 is arranged on the front surface of each of the plurality of stirring bins 17, a mixing bin 29 is fixedly connected to the other end of the top end of the moving plate 16, a second windproof electric nozzle 26 is arranged in communication at one end of the mixing bin 29, and a water pump 30 is arranged at the center of the top end of the moving plate 16; and a feeding assembly is arranged on the front surface of the moving plate 16 and is used for quantitatively feeding a plurality of bacteria.

[0035] The second motor 19 is a direct current motor RS type motor, has a large starting torque, can smoothly adjust the speed in a wide range, and has good control performance; The first windproof electric nozzle 22 and the second windproof electric nozzle 26 are both rainbird ball screw 1800 series, have good windproof performance, can uniformly spray water into farmland under certain wind conditions through special nozzle design and accurate spray angle control, and after the first windproof electric nozzle 22 and the second windproof electric nozzle 26 are connected to the power supply and turned on, the current enters the electric motor, the electric motor rotates, and drives the water pump connected thereto to work. Due to the pressure difference between the external atmospheric pressure and the low pressure area, the liquid is sucked into the water pump. The liquid sucked into the water pump obtains kinetic energy and pressure energy under the driving of the impeller, and is then transported to the nozzle of the nozzle through the pipeline, and the uniformly stirred bacteria liquid is sprayed out.

[0036] Embodiment 2 The embodiment provides a pool sterilization device for green shrimp culture, in addition to the technical scheme of the above-mentioned embodiment, further has the following technical features.

[0037] Wherein, the air interference assembly comprises a support plate 9 fixed on one side of the water tank body 1 by screws, the top end of the support plate 9 is fixed with an air inlet pipe 8, one side of the air inlet pipe 8 is connected with the roots blower 4, the other side of the air inlet pipe 8 is communicated with the roots blower 4, the other side of the air inlet pipe 8 is communicated with two auxiliary pipes 10, the surfaces of the two auxiliary pipes 10 are respectively provided with valves, the bottom ends of the auxiliary pipes 10 are communicated with two air distribution pipes 13, the two air distribution pipes 13 are communicated through a connecting pipe 11, the bottom end of one of the air distribution pipes 13 is communicated with an oxygen inlet pipe 12, the top end of the oxygen inlet pipe 12 is fixedly connected with a fixing column 6, the bottom end of the fixing column 6 is communicated with the oxygen inlet pipe 12, the other end of the oxygen inlet pipe 12 is communicated with the fixing column 6, the surfaces of the two air distribution pipes 13 and the fixing column 6 are respectively provided with a plurality of air outlet holes 14 equidistantly, the plurality of air outlet holes 14 are provided in an inclined manner, and the inclination angles of the plurality of air outlet holes 14 are different.

[0038] The roots blower 4 is used to suck air from the surrounding environment, compress it and then deliver it to the water through the pipeline, and the roots blower 4 has the characteristics of forced air supply, which can overcome certain resistance to continuously deliver air to the bottom of the breeding tank.

[0039] The air is delivered from the roots blower 4 to the air inlet pipe 8, and then sprayed out from the plurality of air outlet holes 14 along the auxiliary pipes 10, the connecting pipe 11, the air distribution pipes 13 and the oxygen inlet pipe 12, the design of the plurality of inclined air outlet holes 14 enables the air to be evenly dispersed in the water, and when the air is released into the water, a large number of small bubbles will be formed, which will drive the surrounding water to move upward during the rising process, because the density of the bubbles is much smaller than that of water, they will quickly rise while generating an upward thrust on the surrounding water, so that the water at the bottom is brought to the water surface, and the water at the surface is replenished to the bottom, thereby promoting the circulation flow in the entire water tank body 1. It can accelerate the decomposition and transformation of harmful substances in water, such as ammonia nitrogen and nitrite. On the one hand, the flowing water is conducive to the growth and metabolism of microorganisms, which can decompose harmful substances into harmless substances; on the other hand, the increased dissolved oxygen content can inhibit the growth of anaerobic harmful bacteria and reduce the occurrence of diseases.

[0040] At the same time, waves and water flow are formed in the breeding tank, when the excrement and feed are suspended in the water, the force of the water flow will push them to move, in this process, the excrement and feed will be affected by gravity, and the fluctuation of the water flow can break their relatively stable suspended state, making them more easily sink downward under the action of gravity, thereby facilitating the subsequent cleaning work, and also helping to promote the mixing of different bacterial liquids with water, so that different bacterial liquids can be evenly distributed in the water tank body 1, Bacillus is mainly used for water purification, degradation of ammonia nitrogen and nitrite, yeast is mainly used as a nutritional supplement and immune enhancer, and lactic acid bacteria are mainly used for regulating intestinal flora and inhibiting pathogenic bacteria, for sterilizing the water tank.

[0041] Embodiment 3: The embodiment provides a pool sterilization device for green shrimp culture, in addition to comprising the technical scheme of the above embodiment, further has the following technical features.

[0042] Among them, the moving assembly includes a ball screw 18, the ball screw 18 is rotatably inserted in the U-shaped support frame 3, the ball screw 18 and one side of the U-shaped support frame 3 are fixedly installed with a first motor 15, two sides of the inner wall of the U-shaped support frame 3 are fixedly connected with a second motor 19, the ball screw 18 and the second motor 19 are movably sleeved with a moving column 33, the top end of the moving column 33 is fixedly connected with a moving plate 16, and the moving column 33 is movably inserted at the top end of the U-shaped support frame 3.

[0043] The threads of the ball screw 18 and the moving column 33 are matched, the moving column 33 moves left and right with the rotation of the ball screw 18, the first motor 15 is a stepping motor and can accurately control the rotation angle and speed through pulse signals, the cost is relatively low, and the first motor 15 can also rotate forward and reversely, so that the speed can be adjusted according to the spraying amount and use demand, and the circulating spraying can be facilitated according to the demand.

[0044] Embodiment 4: The embodiment provides a pool sterilization device for green shrimp culture, in addition to comprising the technical scheme of the above embodiment, further has the following technical features.

[0045] Among them, the U-shaped support frame 3 is rotatably inserted with a ball screw 18, the ball screw 18 and one side of the U-shaped support frame 3 are fixedly installed with a first motor 15, the surface of the ball screw 18 is movably sleeved with a moving column 33 through threads, and the two sides of the moving column 33 are movably inserted with a round rod 31.

[0046] With the movement of the moving column 33, the two groups of round rods 31 move left and right on the surface, the movement of the moving column 33 with the rotation of the ball screw 18 and the first motor 15 is reduced, the moving column 33 can stably move left and right, the front of the U-shaped support frame 3 is hingedly connected with a door plate, maintenance and maintenance are facilitated, the surface of the ball screw 18 can be cleaned and maintained regularly, the service life is prolonged, and the smoothness during use is increased.

[0047] Embodiment 5: The embodiment provides a pool sterilization device for green shrimp culture, in addition to comprising the technical scheme of the above embodiment, further has the following technical features.

[0048] The feeding assembly comprises a conveying pipe 20, one end of the conveying pipe 20 is fixed at the top end of the stirring bin 17, a spiral feeding shaft 27 is rotatably arranged in the conveying pipe 20, the spiral feeding shaft 27 and one side of the conveying pipe 20 are jointly and fixedly installed with a third motor 23, upper and lower ends of the conveying pipe 20 are respectively communicated with a chute 28, a plurality of stirring bins 17 are communicated with the conveying pipe 20 through a water pipe 32, the top end of the conveying pipe 20 is fixedly connected with a storage bin 21, and the plurality of storage bins 21 are communicated with the conveying pipe 20 through the chute 28.

[0049] The chute 28 is a YVP series variable frequency speed regulation motor, can realize smooth speed regulation in a wide speed regulation range, has high speed regulation precision, can adjust the feeding amount according to the feeding speed, and can quantitatively feed the bacteria powder according to the detection condition of the sensor during use, further accurately proportion, and more scientifically sterilize.

[0050] Embodiment 6: The water pool sterilization device for shrimp green breeding provided in the embodiment further has the following technical features in addition to the technical solutions in the above embodiments.

[0051] The bottom end of the water pool main body 1 is shaped as a pot bottom, the bottom end of the sewage pipe 2 is connected with a sewage pump through a pipeline, the arc-shaped screen 7 is shaped as an inverted pot bottom, the pore size of the arc-shaped screen 7 is about 0.25 mm, and the water pool main body 1 is installed with a dissolved oxygen sensor 34, a pH value sensor 35, an ammonia nitrogen sensor 36, a nitrite sensor 37 and a temperature sensor 38.

[0052] The sewage pump is a centrifugal sewage pump, has the advantages of large flow, high lift, simple structure and stable operation, is suitable for large-scale sewage discharge in shrimp breeding, and the core component of the centrifugal sewage pump is an impeller. When the impeller is driven by the motor to rotate at high speed, the water in the impeller also rotates. A vacuum low-pressure area is formed at the center of the impeller. Under the action of the external atmospheric pressure, the sewage in the breeding pond forms a continuous water suction and drainage process. The bottom end of the water pool main body 1 is inclined to the center, the drainage port is located at the lowest position, the air disturbance effect can push the sediments to the drainage port, the arc-shaped screen 7 is set to 0.25 mm, and about 80% of solid particle substances with a particle size greater than 70 microns can be effectively removed. In the Litopenaeus vannamei shrimp breeding, excrement and feed can be filtered. The dissolved oxygen sensor 34 is a fluorescence dissolved oxygen sensor. The dissolved oxygen sensor 34 detects and feeds back the oxygen concentration in the water by using the fluorescence quenching principle and the intensity change of the reaction between the fluorescent substance and the oxygen molecules. The dissolved oxygen sensor 34 prompts the anoxic risk and prompts to add probiotics and yeast. The pH sensor 35 is a solid-state electrode pH sensor: using solid-state electrolyte, strong anti-pollution ability, suitable for high-salinity or high-organic-content water, the pH sensor 35 is put according to the PH degree of water quality, if the PH is too low, yeast can be put, the metabolic products can buffer the pH, and inhibit harmful bacteria, if the PH is too high, the ammonia nitrogen toxicity can be reduced, but the outbreak of blue-green algae should be vigilant. At this time, lactic acid bacteria can be put, and the metabolic lactic acid can reduce the pH and inhibit blue-green algae; The ammonia nitrogen sensor 36 is an optical ammonia nitrogen sensor: using the color change after ammonia nitrogen reacts with a specific reagent, quantitative analysis by optical detection, the ammonia nitrogen sensor 36 detects the ammonia nitrogen concentration in water, if the ammonia nitrogen concentration is over standard, bacillus can be put, ammonia nitrogen is normal: maintain lactic acid bacteria to promote shrimp digestion; The nitrite sensor 37 is a colorimetric nitrite sensor: using the absorbance change after nitrite reacts with a color developing agent, quantitative by spectral analysis, the nitrite sensor 37 detects the nitrite concentration in water, when the nitrite is over standard, bacillus is put to convert nitrite into harmless nitrogen; The temperature sensor 38 is a thermocouple temperature sensor: measuring temperature based on the thermoelectric potential difference of two metals, monitoring water temperature, the temperature sensor 38 monitors the temperature of water, high temperature may accelerate the reproduction of harmful bacteria, lactic acid bacteria need to be put, the metabolic products can inhibit pathogenic bacteria and enhance the immunity of shrimp, when the temperature is too low: low temperature may inhibit the activity of probiotics, at this time, the probiotics can be reduced or low-temperature-resistant strains can be selected; When multiple conditions occur at the same time, the corresponding motor is started by the controller, and multiple corresponding bacteria are put.

[0053] Embodiment 7: The embodiment provides a pool sterilization device for shrimp green breeding, in addition to the technical solutions of the above-mentioned embodiments, it also has the following technical features.

[0054] The surface of the air input pipe 8 is located above the stirring bin 17, and the electromagnetic valve is installed at the position. One side of the air input pipe 8 is fixedly connected with a conveying water pump. The water pump 30 is provided with multiple water inlets and one water outlet. The water inlets of the multiple water pumps 30 are respectively connected with the stirring bin 17 through water pipes 24. The water pipes 24 extend to the stirring bin 17 from one end of the stirring bin 17 and extend to the bottom end of the stirring bin 17. The water inlets of the water pump 30 are connected with the mixing bin 29 through the water pipes 24.

[0055] After the conveying water pump is turned on, the controller starts the corresponding electromagnetic valve to work. The electromagnetic valve is a step direct-acting type, which combines the advantages of direct-acting type and pilot type, and can adapt to certain pressure changes. In a medium-sized breeding site, whether the water is taken from a well, a river or other water sources, or the water is circulated between breeding ponds, the electromagnetic valve can work well.

[0056] Embodiment 8: The embodiment provides a pond sterilization device for green shrimp culture.

[0057] The connecting pipe 11 and the two air distribution pipes 13 are fixed to the inner wall of the pond body 1, the oxygen inlet pipe 12 is fixed to the bottom end of the inner wall of the pond body 1, and the fixed column 6 is fixed and inserted into the middle of the top end of the arc-shaped screen 7.

[0058] The air can be stably delivered into the pond body 1, and the fixed column 6 can also be in the middle of the pond, so that the excrement and the bait can be concentrated above the arc-shaped screen 7 by matching the water inlet 5, so that the excrement and the bait can be collected and combed, the bacteria in the pond water are reduced, the pond is sterilized, and green sterilization culture is facilitated.

[0059] Embodiment 9 The embodiment provides a pond sterilization device for green shrimp culture.

[0060] The top end of the plurality of stirring bins 17 is fixedly connected with a conveying pipe 20, the upper and lower ends of the plurality of conveying pipes 20 are respectively communicated with a chute 28, a spiral feeding shaft 27 is rotatably inserted into the plurality of conveying pipes 20, and the spiral feeding shaft 27 is jointly installed with the top end of the moving plate 16 on one side.

[0061] The bacteria powder can be continuously and stably delivered, the bacteria powder is fed by the third motor 23, the second motor 19, the first windproof electric nozzle 22, the third motor 23, the moving plate 16 and the water pump 30 and the electromagnetic valve are sequentially opened and closed by the controller, and intelligent and scientific breeding is realized.

[0062] All parts used in the application are products that can be directly purchased on the market, the motor and the water pump in the application are provided with a shell and a hinged door plate, maintenance and repair are facilitated, meanwhile, related heat dissipation holes and wiring holes, and wiring connection modes are all existing technologies, principles and connection modes thereof are all existing technologies familiar to those skilled in the art, so details are not described herein.

[0063] In use: when disinfection is needed, start the Roots blower 4 to deliver oxygen through the air inlet pipe 8 into the auxiliary pipe 10, adjust the air flow speed by rotating the valve, the oxygen flows into the air distribution pipe 13 along the auxiliary pipe 10 and the connecting pipe 11, the multiple exhaust holes 14 on the surface of the air distribution pipe 13 at the top are inclined downward, the multiple exhaust holes 14 on the surface of the air distribution pipe 13 at the bottom are inclined upward, the exhaust holes 14 on the surface of the air distribution pipe 13 at the two corners and around the Litopenaeus vannamei shrimp excrete and feed fluctuation to the arc screen 7, at the same time, the oxygen in the air distribution pipe 13 is delivered to the fixed column 6 along the oxygen inlet pipe 12, and is discharged along the exhaust holes 14 on the surface of the fixed column 6, the exhaust holes 14 are inclined downward, which interferes with the water flow, and the excrement and feed at different water depths are disturbed to the arc screen 7, and then flow to the pot-shaped bottom end of the pool body 1 through the holes of the arc screen 7, the excrement and feed of the pool body 1 at the pot-shaped bottom end are collected, after collection, the sewage pump is started, the sewage pump discharges the excrement and feed through the sewage pipe 2, and then the water is injected into the pool body 1 through the water inlet 5 by the water delivery pump; After the sewage is discharged and the new water is injected, when disinfection is needed, the Bacillus, yeast and lactic acid bacteria powders are respectively placed in the corresponding storage bins 21, according to the detection of the water quality by the dissolved oxygen sensor 34, the pH value sensor 35, the ammonia nitrogen sensor 36, the nitrite sensor 37 and the temperature sensor 38, the corresponding No. 3 motor 23 and electromagnetic valve are started by the controller, when the Bacillus is needed to be put, the No. 3 motor 23 is started according to the required amount, the No. 3 motor 23 drives the spiral feeding shaft 27 to rotate, and the Bacillus in the storage bin 21 is continuously conveyed forward with the rotation of the No. 3 motor 23, and when the Bacillus is conveyed to the position of the chute 28, the Bacillus falls into the stirring bin 17 by gravity; After the Bacillus is put, the water delivery pump and the corresponding electromagnetic valve are started, according to the amount of the Bacillus put, the corresponding water is injected into the stirring bin 17 through the water pipe 32, after the water and the Bacillus are successfully put, the corresponding No. 2 motor 19 is started to drive the stirring rod 25 to rotate, so that the Bacillus powder and the water in the stirring bin 17 are stirred uniformly, after the mixture is uniformly mixed, the corresponding No. 1 windproof electric nozzle 22 is started to spray the mixed liquid into the pool body 1, when other bacteria powders are needed to be put alone, the corresponding No. 3 motor 23 and electromagnetic valve are started in the same way; When multiple bacteria need to be sprayed at the same time, multiple No. 3 motors 23 are started at the same time to drive the spiral feeding shaft 27 to rotate, different bacteria powders are put into the corresponding stirring bins 17, and then the water delivery pump and multiple electromagnetic valves are started at the same time, the water flow is injected into the stirring bin 17 through the water pipe 32, then multiple sets of No. 2 motors 19 are started at the same time to drive the stirring rods 25 to rotate, and the water and the bacteria powders are stirred, after the stirring is uniform, the water pump 30 is started to pump the liquid in the multiple stirring bins 17 into the mixing bin 29, and then the liquid is sprayed out through the No. 2 windproof electric nozzle 26; After spraying the mixed liquid, the first motor 15 is started to drive the ball screw 18 to rotate, the ball screw 18 rotates counterclockwise to drive the moving column 33 to move to the right, the moving column 33 moves on the surface of the second motor 19 on both sides, then drives the moving plate 16 to move, from left to right, the moving column 33 can be moved from left to right, the moving column 33 reciprocates in the pool, so that different positions of the pool can be sprayed, so that the liquid can be sprayed more uniformly, and after spraying, the air interference device is started again to form waves and water flow in the breeding pool, so that the bacteria liquid is pushed to different positions of the pool for sterilization operation.

[0064] The embodiments of the present application are described above in combination with the drawings, the embodiments and the features in the embodiments in the present application can be combined with each other without conflict, the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, which all belong to the protection of the present application.

Claims

1. A pond sterilization device for shrimp green farming, characterized in that ,include: A water pool body (1), wherein the bottom end of the water pool body (1) is connected to a sewage pipe (2), one side of the water pool body (1) is connected to a water inlet (5), the bottom end of the inner wall of the water pool body (1) is fixedly connected to an arc-shaped screen (7), and a U-shaped support frame (3) is provided on the outside of the water pool body (1); An air disturbance component, the air disturbance component being arranged inside and outside the pool body (1) and used to disturb sediment in the pool body (1); A moving component, the moving component is movably arranged inside the U-shaped support frame (3) and is used to move the sterilization device; The top of the U-shaped support frame (3) is movably provided with a movable plate (16), the top of the movable plate (16) is fixed with a plurality of stirring chambers (17), the tops of the plurality of stirring chambers (17) are commonly installed with a water pipe (32), the tops of the plurality of stirring chambers (17) are respectively installed with a No. 2 motor (19), the coupling ends of the plurality of No. 2 motors (19) are installed with stirring rods (25), the fronts of the plurality of stirring chambers (17) are respectively installed with a No. 1 windproof electric nozzle (22), the other end of the top of the movable plate (16) is fixedly connected with a mixing chamber (29), one end of the mixing chamber (29) is connected with the No. 2 windproof electric nozzle (26), and a water pump (30) is installed at the center of the top of the movable plate (16); A feeding component is provided on the front of the movable plate (16) and is used for quantitatively feeding a plurality of bacteria.

2. A pond sterilization device for green shrimp farming according to claim 1, characterized in that: The air interference component includes a support plate (9), which is fixed to one side of the pool body (1) by screws. An air input pipe (8) is fixed to the top of the support plate (9), one side of the air input pipe (8) is connected to the Roots blower (4), and the other side of the air input pipe (8) is connected to the Roots blower (4). The two ends of the other side of the air input pipe (8) are respectively connected to auxiliary pipes (10), and valves are respectively installed on the surfaces of the two auxiliary pipes (10). The bottom ends of the auxiliary pipes (10) are connected to two air distribution pipes. (13), the two air distribution pipes (13) are connected through a connecting pipe (11), the bottom end of one group of the air distribution pipes (13) is connected to the oxygen inlet pipe (12), the top end is fixedly connected to a fixed column (6), the bottom end of the fixed column (6) is connected to the oxygen inlet pipe (12), and the other end of the oxygen inlet pipe (12) is connected to the fixed column (6), and a plurality of exhaust holes (14) are equidistantly arranged on the surfaces of the two air distribution pipes (13) and the fixed column (6), and the plurality of exhaust holes (14) are arranged in an inclined shape, and the inclination angles of the plurality of exhaust holes (14) are different.

3. A pond sterilization device for shrimp green farming according to claim 1, characterized in that: The moving assembly includes a ball screw (18), the ball screw (18) is rotatably inserted in the U-shaped support frame (3), the ball screw (18) and one side of the U-shaped support frame (3) are fixedly installed with a No. 1 motor (15), the two sides of the inner wall of the U-shaped support frame (3) are fixedly connected with a No. 2 motor (19), the ball screw (18) and the No. 2 motor (19) are jointly movably sleeved with a moving column (33), the top of the moving column (33) is fixedly connected with a moving plate (16), and the moving column (33) is movably inserted with the top of the U-shaped support frame (3).

4. A pond sterilization device for green shrimp farming according to claim 3, characterized in that: A ball screw (18) is rotatably inserted inside the U-shaped support frame (3), and a No. 1 motor (15) is fixedly mounted on one side of the ball screw (18) and the U-shaped support frame (3). A movable column (33) is provided on the surface of the ball screw (18) through a threaded rotation sleeve, and round rods (31) are movably inserted on both sides of the movable column (33).

5. A pond sterilization device for green shrimp farming according to claim 1, characterized in that: The feeding assembly includes a conveying pipe (20), one end of which is fixed to the top of the mixing bin (17), a spiral feeding shaft (27) is rotatably inserted in the conveying pipe (20), and a No. 3 motor (23) is fixedly installed on one side of the spiral feeding shaft (27) and the conveying pipe (20), and the upper and lower ends of the conveying pipe (20) are respectively connected to a material trough (28), and multiple mixing bins (17) are connected to the conveying pipe (20) through a water pipe (32), and the top of the conveying pipe (20) is fixedly connected to a storage bin (21), and multiple storage bins (21) are connected to the conveying pipe (20) through the material trough (28).

6. A pond sterilization device for green shrimp farming according to claim 1, characterized in that: The bottom end of the pool body (1) is shaped like a pot bottom, the bottom end of the sewage pipe (2) is connected to a sewage pump through a pipeline, the shape of the curved screen (7) is shaped like an inverted pot bottom, the aperture of the curved screen (7) is set to about 0.25 mm, and a dissolved oxygen sensor (34), a pH sensor (35), an ammonia nitrogen sensor (36), a nitrite sensor (37) and a temperature sensor (38) are installed in the pool body (1).

7. A pond sterilization device for green shrimp farming according to claim 2, characterized in that: Solenoid valves are installed on the surface of the air input pipe (8) above the mixing chamber (17). A water pump is fixedly connected to one side of the air input pipe (8). The water pump (30) is provided with multiple water inlets and a water outlet. The water inlets of the multiple water pumps (30) are connected to the mixing chamber (17) through water pipes (24). The water pipes (24) extend to one end of the mixing chamber (17) and are inserted into and extend to the bottom thereof. The water inlet of the water pump (30) is connected to the mixing chamber (29) through the water pipe (24).

8. A pond sterilization device for green shrimp farming according to claim 2, characterized in that: The connecting pipe (11) and the two air distribution pipes (13) are respectively fixed to the inner wall of the water pool body (1), the oxygen inlet pipe (12) is fixed to the bottom end of the inner wall of the water pool body (1), and the fixing column (6) is fixedly inserted in the middle of the top of the curved screen (7).

9. A pond sterilization device for green shrimp farming according to claim 1, characterized in that: The top ends of the plurality of mixing bins (17) are fixedly connected to a conveying pipe (20), the upper and lower ends of the plurality of conveying pipes (20) are respectively connected to a material trough (28), a spiral feeding shaft (27) is rotatably inserted in the plurality of conveying pipes (20), and a No. 3 motor (23) is installed on one side of the spiral feeding shaft (27) and the top end of the movable plate (16).

10. A method for using a sterilization device for a shrimp green aquaculture pond, used for a sterilization device for a shrimp green aquaculture pond according to any one of claims 1 to 9, characterized in that: Includes the following methods: Step S1: When sterilization is required, start the Roots blower (4) to deliver oxygen to the auxiliary pipe (10) through the air input pipe (8), turn the valve to adjust the air flow rate, and the oxygen flows along the auxiliary pipe (10) and the connecting pipe (11) to the air distribution pipe (13). The multiple exhaust holes (14) on the surface of the upper air distribution pipe (13) are inclined downward, and the multiple exhaust holes (14) on the surface of the lower air distribution pipe (13) are inclined upward. The exhaust holes (14) on the surface of the two air distribution pipes (13) wave the excrement and bait of the shrimp in the corners and around to the arc screen (7). At the same time, the air distribution pipe ( The oxygen in the water is transported to the fixed column (6) along the oxygen inlet pipe (12) and discharged along the exhaust hole (14) on the surface of the fixed column (6). The exhaust hole (14) is set to be inclined downward to interfere with the water flow. The excrement and bait at different water depths are disturbed to the arc screen (7) and flow through the holes of the arc screen (7) to the pot-shaped bottom end of the pool body (1). The excrement and bait gather at the pot-shaped bottom end of the pool body (1). After gathering, the sewage pump is started, and the sewage pump discharges the excrement and bait through the sewage pipe (2). Then, the water is injected into the pool body (1) through the water inlet (5) by the water delivery pump; Step S2, after the sewage is discharged and the new water is injected, when sterilization treatment is required, the bacillus, yeast, and lactic acid bacteria powders are respectively placed in the corresponding storage bins (21), and according to the detection conditions of the dissolved oxygen sensor (34), the pH sensor (35), the ammonia nitrogen sensor (36), the nitrite sensor (37), and the temperature sensor (38) for the water quality, the corresponding No. 3 motor (23) and the solenoid valve are started by the controller. When the bacillus needs to be added, the No. 3 motor (23) is started according to the amount to be added, and the No. 3 motor (23) drives the spiral feeding shaft (27) to rotate. As the No. 3 motor (23) rotates, the bacillus in the storage bin (21) is continuously transported forward. When the bacillus is transported to the position of the trough (28), the bacillus falls into the mixing bin (17) by gravity; Step S3, after the bacillus is added, the water delivery pump and the corresponding electromagnetic valve are started, and the corresponding water is injected into the stirring chamber (17) through the water pipe (32) according to the amount of bacillus added. After the water and bacillus are successfully added, the corresponding No. 2 motor (19) is started to drive the stirring rod (25) to rotate, and the bacillus powder and water in the stirring chamber (17) are evenly mixed. After the mixture is evenly mixed, the corresponding No. 1 windproof electric spray head (22) is started to spray the mixed liquid into the pool body (1). When other bacterial powders need to be added alone, the corresponding No. 3 motor (23) and electromagnetic valve are started in the same way; When multiple bacteria need to be sprayed simultaneously, multiple No. 3 motors (23) are started simultaneously to drive the spiral feeding shaft (27) to rotate, and different bacterial powders are put into the corresponding mixing chambers (17). Then, the water delivery pump and multiple solenoid valves are started simultaneously, and water is injected into the mixing chamber (17) through the water pipe (32). Subsequently, multiple No. 2 motors (19) are started simultaneously to drive the stirring rod (25) to rotate, and the water and bacterial powder are stirred. After stirring evenly, the water pump (30) is started, and the water pump (30) pumps the liquid in the multiple mixing chambers (17) into the mixing chamber (29), and sprays it out through the No. 2 windproof electric nozzle (26); Step S5, after spraying the mixed liquid, start the No. 1 motor (15) to drive the ball screw (18) to rotate, the ball screw (18) rotates counterclockwise to drive the moving column (33) to move to the right, the moving column (33) moves on the surface of the No. 2 motor (19) on both sides, and then drives the moving plate (16) to move. When spraying from left to right to the head, the No. 1 motor (15) can be started to rotate clockwise, so that the moving column (33) can move from left to right. The moving column (33) reciprocates in the pool, so that different positions of the pool can be sprayed, so that the liquid is sprayed more evenly. After spraying, the air interference device is started again to form waves and water currents in the breeding pool, so that the bacterial liquid is pushed to different positions of the pool for sterilization operation.

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