CN209473349U - Bait organism or plankton culture system and suspension type water exchanger - Google Patents

Abstract

The utility model is a breeding system for feed organisms or plankton and a suspended water exchanger. The suspended water exchanger includes a positioning frame capable of suspending the water surface and a roller with a transverse axis installed on the positioning frame. The roller It contains a circular tubular filter with the bottom submerged in water and is equipped with a pump. When changing water, the motor drives the drum to rotate and uses the pump to pump out the water inside the drum. The rotation of the drum will generate shear force between the outer edge of the filter screen and the water body, preventing bait organisms from adsorbing on the filter screen and maintaining self-purification. Reduce the damage caused by water exchange to feed organisms and achieve the effect of increasing breeding density; in addition, the suspended water changer is easy to install and use, convenient to replace the filter, and low-cost, making the overall breeding system more valuable for industrial use.

Description

Breeding system and suspended water changer for bait organisms or plankton

technical field

The utility model relates to a breeding system for bait organisms or plankton and a suspended water changer. The technical content involves using a roller suspended on the water surface as a filter screen of the water changer to avoid bait organisms being adsorbed on the filter screen when changing water. Maintaining self-purification and reducing damage to bait organisms can effectively increase the breeding density and thus increase production capacity.

Background technique

In recent years, with the gradual increase in the demand for aquatic products and the relative reduction of land resources, the factory farming model has gradually emerged. In order to stably supply the bait organisms needed for aquaculture and live aquatic products, the use of indoor aquaculture systems to produce bait organisms has also become a link that cannot be ignored in the aquaculture production chain. For example, due to their small size, good palatability of seedlings, slow swimming speed, strong fecundity, and high-density cultivation, rotifers can be used as open bait for more than 60 species of bony fishes and 18 species of crustaceans, and have been used in aquaculture. It is regarded as one of the most important prey organisms by the industry.

In addition to rotifers, the cultivation of bait organisms or plankton also includes microalgae, brine shrimp, and steroids, etc. There are many related researches on the cultivation methods and equipment of these organisms at home and abroad, but so far most The research results are still difficult to be adopted by the industry, mainly because expensive facility costs, complicated pipeline wiring, and long-term operation and maintenance must be invested in order to maintain a stable water quality in the aquaculture system, forming a high-capital, high-tech and It is difficult for ordinary small farmers and traditional breeders to cross the threshold.

For example, most general aquaculture systems use the circulating water system to cultivate bait organisms. Although the cultivation conditions can be strictly controlled after the circulating water system is stabilized, no matter whether it is a batch, semi-continuous or continuous production method, before entering production, It takes time to develop a stable biofiltration bed to achieve sufficient water quality treatment capacity, making the system unable to be put into production immediately, and it is difficult to assess the biocapacity of the system.

On the other hand, if the circulating water system wants to maintain enough algae bait or feed in the water, it must be fed in a small amount and multiple meals. However, the water body is still circulating and filtering, which not only causes algae bait or feed to be wasted, but also increases the burden on the filter bed. Moreover, frequent and accurate feeding also requires manpower or equipment, which is not conducive to the use of ordinary small farmers and breeders.

The traditional way of controlling water quality by changing water is the most direct and easy to cross the technical threshold. However, the bait organisms or plankton are small and fragile, and because of their slow swimming speed, they lack the ability to resist the water flow, and are easily absorbed by the water flow on the blocking filter screen of the water outlet when changing the water, so that these organisms are stacked, Mechanical injuries such as extrusion, or even death, and the clogging of the filter screen also reduces the water exchange efficiency.

In order to prevent rotifers from being adsorbed on the filter screen, the known technology installs an annular air bubble curtain under the filter screen to wash the filter screen by driving the water flow with the bubbles. However, the floating speed of the bubbles is only 5-15cm/s, and the flow rate of the water flow is limited. One of the inventors of this case has also developed China Taiwan Bulletin No. 344208 drum filtration technology to concentrate the water body of rotifers, which can more effectively prevent the rotifers from being adsorbed on the filter screen, and make the survival rate of rotifers reach 95%. This shows that, It is quite feasible to use the drum as a water changer filter to control water quality.

However, the designer of the utility model found in the research and development process that if the drum and the filter screen are placed in the aquaculture water body for a long time, unless they are continuously rotated, the filter screen is easily blocked by rotifers, suspended dirt and residual bait, making it transparent. In addition, the method of changing water to control water quality is usually enough in practice several times a day. If the drum and filter are rotated and water is changed continuously or too frequently, it will cause damage to electricity, water resources and bait. waste. Therefore, although using a drum as a water changer is a method that can effectively maintain water quality in the aquaculture system, it is still necessary to redesign the water changer and operation method before it can be further applied to the aquaculture system of bait organisms or plankton.

In view of the above problems, the designer of this utility model has specially developed a suspension water changer by virtue of his accumulated years of research and practical experience in related fields, which can not only effectively overcome the problems of bait organisms or plankton when changing water. The problem of being injured also has the characteristics of low cost, easy use and convenient replacement of filter screens, which can greatly reduce the technical threshold of bait organisms or plankton breeding systems, and has great industrial application value.

Utility model content

The purpose of this utility model is to provide a breeding system for bait organisms or plankton and a suspended water changer. Maintenance, on the other hand, the use of a drum as a water change filter not only prevents the bait organisms from being adsorbed on the filter to maintain self-cleaning during water changes, but also effectively overcomes the problem that bait organisms or plankton are easily damaged during water changes , to achieve the effect of increasing the breeding density and survival rate.

In order to achieve the above purpose, the utility model is a breeding system for bait organisms or plankton, which includes a breeding tank for breeding bait organisms or plankton, a water inlet unit for injecting clean water into the breeding tank, and A suspended water changer that is suspended on the water surface of the breeding tank to extract the water;

The suspended water changer includes a positioning frame that can be suspended on the water surface, a roller with a transverse axis arranged on the positioning frame, and a pump. The roller can be driven by a motor mounted on the positioning frame to rotate, and includes a The bottom is submerged in the horizontal filter screen in the water. The filter screen is in the shape of a round tube to block the bait organisms or plankton outside the filter screen. The pump can pump out the water that enters the drum through the filter screen.

When the above-mentioned aquaculture system changes water, the motor drives the drum to rotate to generate shear force between the outer edge of the filter screen and the water body, and at the same time, the pump continuously pumps out the aquaculture water that enters the drum through the filter screen to avoid bait biosorption during water change It keeps self-cleaning on the filter, reduces the damage to the bait organisms, and achieves the effect of increasing the breeding density and survival rate, and the suspended water changer has the characteristics of low cost, easy to use and install, and convenient to replace the filter, making the whole breeding system It has more industrial utilization value.

The specific implementation manner of each element is further described below:

During implementation, the positioning frame has a base and a shaft seat arranged laterally apart from each other. The base and the shaft seat are respectively provided with floating bodies that enable the positioning frame to be suspended on the water surface when placed in the culture tank, and the motor is arranged on the base. ; The drum includes caps that are pivotally connected to the rotating shaft and shaft seat of the motor, and the filter screen is bridged between the two caps.

During implementation, the positioning frame further includes a handle spanning above the base and the shaft seat.

During implementation, the base is further provided with a waterproof sealing box covering the outside of the motor.

During implementation, the system further includes an effluent collection tank for receiving the aquaculture water pumped out by the suspension type water changer pump.

During implementation, the water inlet unit is a water inlet tank, which is provided with a submerged pump capable of injecting clean water into the culture tank; the system further includes an aeration device that can inject air into the culture tank; the inlet A temperature controller is respectively arranged in the water tank and the breeding tank.

The utility model also provides a suspended water changer for a bait organism or plankton breeding system. The suspended water changer includes a positioning frame with a motor, and a transverse axis arranged on the positioning frame to receive the motor. The drive rotates the drum, where:

The locating frame has a base and a shaft seat arranged laterally apart from each other, the base and the shaft seat are respectively provided with floating bodies that enable the positioning frame to be suspended on the water surface when placed in the culture tank, and the motor is arranged on the base;

The drum at least includes a cylindrical filter screen whose bottom is submerged in water to keep bait organisms or plankton out, and a pump capable of pumping out water entering the drum through the filter screen.

During implementation, the positioning frame further includes a handle spanning above the base and the shaft seat.

During implementation, the drum includes caps that are pivotally connected to the rotating shaft and shaft seat of the motor, and the filter screen is bridged between the two caps.

During implementation, the depth of the filter screen bottom submerged in water is no more than 1/2 of the diameter.

Compared with the prior art, the suspended water changer of the utility model is a modular design, which can be conveniently placed without installation and suspended in the breeding tank for use, and has the advantages of low cost, easy installation and filter replacement. Features, greatly reduce the technical threshold of bait organisms or plankton breeding systems, and have industrial application value. In addition, the suspended water changer adopts a drum as a water change filter, which can avoid the bait biological adsorption on the filter during water change to maintain self-cleaning, reduce the damage to the bait organisms, and achieve the effect of increasing the breeding density and survival rate.

According to the technical means of the present invention, specific implementation methods suitable for the present invention are enumerated below, and are described in conjunction with drawings as follows.

Description of drawings

Fig. 1 is a schematic diagram of the system architecture of the present invention.

Fig. 2 is a perspective view of the utility model suspension water changer.

Fig. 3 is a schematic diagram of the use of the suspension water changer of the present invention.

Explanation of reference signs: 100 breeding tank; 101 aeration device; 102 outlet water collection tank; 103, 203 temperature controller; 200 water inlet unit; 201 submerged water pump; 202 water inlet pipe; 11 motor; 12 rotating shaft; 13 base; 14 shaft seat; 15 floating body; 16 handle; 17 waterproof sealing box; 20 drum;

Detailed ways

As shown in Figure 1, it is a schematic diagram of the system architecture of the bait organism or plankton breeding system of the present utility model. The water inlet unit 200 in the tank 100, and a suspended water changer 300 suspended on the water surface of the culture tank 100 to extract the culture water.

Wherein, the suspended water changer 300 includes a positioning frame 10 that can be suspended on the water surface, and a roller 20 with a transverse axis arranged on the positioning frame 10, and the roller 20 can accept a motor 11 arranged on the positioning frame 10 It is driven to rotate, and includes a horizontal cylindrical filter screen 21 submerged in the water at the bottom. This filter screen 21 can block bait organisms or plankton outside, and will enter the aquaculture water in the drum 20 through the filter screen 21 by means of a pump 22. pull out. During implementation, the pump 22 can be arranged inside the filter screen 21, or arranged outside the filter screen 21 to pump out the aquaculture water in the drum 20 through a hose.

As shown in the figure, when the aquaculture system is implemented, the water inlet unit 200 is a water inlet tank, which is provided with a submerged pump 201 and a water inlet pipe 202 capable of injecting clean water into the aquaculture tank 100. Air is injected into the aeration device 101 in the culture tank 100, and an outlet water collection tank 102 that can hold the culture water extracted by the pump 22 of the suspension water changer 300, and the culture tank 100 and the water inlet unit 200 A temperature controller 103, 203 capable of controlling the temperature of the water body to be suitable for the reproduction of bait organisms or plankton is respectively arranged inside.

When the above-mentioned culture system changes water, the submerged pump 201 in the water inlet unit 200 injects clean water into the culture tank 100, and at the same time, the rotating shaft 12 of the motor 11 drives the drum 20 and the filter screen 21 to rotate, and the pump 22 will The aquaculture water that continues to enter the drum 20 through the filter screen 21 is pumped out to the effluent collection tank 102, so that the water exchange procedure of the aquaculture tank 100 can be performed.

During the above-mentioned water change process, the motor 11 drives the drum 20 to rotate, which can generate shear force between the outer edge of the filter screen 21 and the water body, so as to avoid the adsorption of bait organisms or plankton on the filter screen 21 during water change to maintain self-cleaning, and reduce the impact on water. The damage of these organisms can achieve the effect of improving the breeding density and survival rate.

In addition, the suspended water changer 300 can be conveniently placed without installation and suspended in the breeding tank 100 for use, and can be quickly taken out when the water change is stopped. It has the characteristics of low cost, easy installation, and convenient replacement of the filter screen. Significantly lower the technical threshold of the bait organism or plankton breeding system, and make the overall breeding system more valuable for industrial use.

As shown in Fig. 2 and Fig. 3, when the above-mentioned suspended water changer 300 is implemented, the positioning frame 10 has a base 13 and an axle seat 14 arranged laterally apart from each other, and the base 13 and the axle seat 14 are respectively provided with The floating body 15 suspended on the water surface when the positioning frame 10 is placed in the culture tank, and the aforementioned motor 11 is then arranged on the base 13 .

The aforementioned drum 20 includes two caps 23 spaced apart from each other, wherein one cap 23 is pivotally connected to the rotating shaft 12 of the motor 11, and the other cap 23 is pivotally connected to the shaft seat 14, and the aforementioned filter screen 21 is transversely arranged on the Between the two caps 23, the depth that the filter screen 21 bottom is submerged in the water is no more than 1/2 of the diameter.

As mentioned above, when the rotating shaft 12 of the motor 11 rotates, it can drive the two caps 23 and the filter screen 21 to rotate synchronously, and when the pump 22 pumps out the aquaculture water in the drum 20, the aquaculture water continues to be replenished to the drum through the filter screen 21 20, while the bait organisms or plankton in the culture water are blocked outside the filter screen 21.

At this time, because the filter screen 21 is in a rotating state, a shear force is generated between its outer edge and the water body, so it is possible to avoid the bait bioadsorption on the filter screen 21 and keep self-cleaning, and reduce the damage to the bait organisms, thereby improving the quality of breeding. Effects of density and viability.

In order to conveniently place the suspended water changer 300 in or take it out from the breeding tank, in the figure, the positioning frame 10 further includes a handle 16 bridged between the base 13 and the shaft seat 14, a On the one hand, the user can directly use the handle 16 to pick up the suspended water changer 300 ; on the other hand, the handle 16 can be used to keep the base 13 and the shaft seat 14 coaxially positioned with each other, so that the drum 20 can rotate stably.

In addition, in order to prevent the motor 11 from getting wet when the suspended water changer 300 is placed on the water surface, the base 13 is further provided with a waterproof sealing box 17 covering the outside of the motor 11 to prevent the motor 11 from being immersed in water when the water surface fluctuates.

It is worth mentioning that the above-mentioned system and the suspended water changer have been tested by the designer of the utility model with high-density rotifers for many times, and the rotifers have been harvested for more than 7 consecutive days, and the daily harvest density can still be as high as 6,500 ind./ml or more, and the survival rate is as high as 95%, which proves that the utility model really has practical value.

In addition, the water exchange method of the utility model replaces the expensive and complicated equipment cost of the circulating water system, and does not need to wait for the filter bed to stabilize. Rotifers are produced by changing the water, the equipment is simple and low in cost, and the production of rotifers can be started at any time. It is suitable for those who have an immediate demand for rotifers, and can also be used for commercial mass production. If it is not easy to obtain seawater, the water changer can be used in conjunction with the circulating water system as long as the circulating water system has sufficient water quality treatment capacity. In addition, the water changer is small in size and easy to carry. It can also be enlarged or expanded in the future. Shrinkage, applied to other production systems, has the advantages of high flexibility and ease of use.

The above description is only illustrative of the present utility model, rather than restrictive. Those of ordinary skill in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined in the claims. , but all will fall within the protection scope of the present utility model.

Claims (10)

1. A culture system for bait organisms or plankton, characterized in that: the culture system comprises a culture tank for cultivating bait organisms or plankton, a water inlet unit that injects clean water into the culture tank, and a suspension in The suspended water changer that pumps out the water from the water surface of the breeding tank; The suspended water changer includes a positioning frame that can be suspended on the water surface, a roller with a transverse axis arranged on the positioning frame, and a pump. The roller can be driven by a motor mounted on the positioning frame to rotate, and includes a The bottom is submerged in the horizontal filter screen in the water. The filter screen is in the shape of a round tube to block the bait organisms or plankton outside the filter screen. The pump can pump out the water that enters the drum through the filter screen. 2. The breeding system of bait organisms or plankton as claimed in claim 1, wherein, the positioning frame has a base and an axle seat arranged at intervals laterally from each other, and the base and the axle seat are respectively provided with a structure that enables the positioning A floating body suspended on the water surface when placed in a breeding tank, and the motor is arranged on the base; the drum includes a cap respectively pivotally connected to the rotating shaft and the shaft seat of the motor, and the filter screen is bridged between the two caps between covers. 3 . The breeding system for bait organisms or plankton as claimed in claim 2 , wherein the positioning frame further comprises a handle spanning above the base and the shaft seat. 4 . 4. The breeding system for bait organisms or plankton as claimed in claim 2, characterized in that, the base is further provided with a waterproof sealing box covering the outside of the motor. 5. The culture system of bait organisms or plankton as claimed in claim 1, is characterized in that, also comprises an aeration device that can inject air into the culture tank, the water inlet unit is a water inlet tank, and the water inlet tank is equipped with There is a submerged water pump and a water inlet pipe capable of injecting clean water into the culture tank, and a temperature controller is respectively arranged in the water inlet unit and the culture tank. 6. The breeding system of bait organisms or plankton according to any one of claims 1 to 5, characterized in that the depth of the bottom of the filter screen submerged into the water does not exceed half of the diameter. 7. A suspended water changer for a bait organism or plankton culture system, characterized in that: the suspended water changer includes a positioning frame with a motor, and a transverse axis arranged on the positioning frame to accept the A drum that is driven by a motor to rotate, wherein: The locating frame has a base and a shaft seat arranged laterally apart from each other, the base and the shaft seat are respectively provided with floating bodies that enable the positioning frame to be suspended on the water surface when placed in the culture tank, and the motor is arranged on the base; The drum at least includes a cylindrical filter screen whose bottom is submerged in water to keep bait organisms or plankton out, and a pump capable of pumping out water entering the drum through the filter screen. 8 . The suspended water changer of the bait organism or plankton culture system according to claim 7 , wherein the positioning frame further comprises a handle spanning above the base and the shaft seat. 9. The suspended water changer of the bait organism or plankton culture system as claimed in claim 7, wherein the drum comprises a cap respectively axially connected to the rotating shaft and the shaft seat of the motor, and the filter screen Bridged between the two caps. 10. The suspended water changer of the bait organism or plankton culture system according to any one of claims 7 to 9, characterized in that the depth of the bottom of the filter screen submerged in the water does not exceed 1/2 of the diameter.