CN211211042U - Water circulation system that fry was bred - Google Patents
Water circulation system that fry was bred Download PDFInfo
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- CN211211042U CN211211042U CN201922312182.7U CN201922312182U CN211211042U CN 211211042 U CN211211042 U CN 211211042U CN 201922312182 U CN201922312182 U CN 201922312182U CN 211211042 U CN211211042 U CN 211211042U
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Abstract
The utility model discloses a water circulation system for fry culture, which comprises a water inlet pool, a fry culture barrel, a water collecting pool and a filtering pool which are connected in sequence; the water inlet pool is provided with a water inlet pump, the water inlet pump is connected with a water inlet pipe, an outlet of the water inlet pipe is positioned right above the fry breeding barrel, and the water inlet pool is used for feeding water into the fry breeding barrel through the water inlet pipe; a water return pipe is arranged at the bottom of the fry breeding barrel and communicated with the water collecting pool; the filtering tank is arranged adjacent to the water collecting tank; a water passing pipe is arranged on any side wall in the short edge direction of the filtering tank, and the water collecting tank and the filtering tank are communicated with each other through the water passing pipe; two inside walls of the filter tank are provided with a plurality of clapboards, a gap is reserved between the clapboard arranged on the inside wall on one side and the inside wall on the other side, the clapboards are arranged in a staggered mode, and the other side wall of the filter tank in the short edge direction is provided with a water passing pipe communicated with the water inlet tank. The water circulation system that this technical scheme provided that fry was bred, its structural design is reasonable, is favorable to improving the success rate that fry was cultivated.
Description
Technical Field
The utility model relates to an aquaculture equipment technical field especially relates to a water circulating system that fry was bred.
Background
Fry breeding is a very important link of the aquaculture industry, and the success or failure of the breeding directly affects the economic benefit. However, in actual production, the success rate of fry rearing is always unstable, and factors influencing the success rate of fry are more, but are mainly influenced by the condition of quality of water in the rearing process.
The cultivation of fish fry is the production activity of breeding, cultivating and harvesting aquatic animals and plants under artificial control. The fry is cultivated and bred in a high-density intensive culture mode. The high-density intensive culture adopts methods of running water, temperature control, oxygenation, high-quality bait feeding and the like to carry out high-density culture in a small water body, thereby obtaining high yield. In the process of culturing the high-density intensive-culture fries, return water with dirt in the culture pond needs to be discharged, and new water needs to be injected into the culture pond, so that the purposes of saving water and maintaining a culture environment are achieved.
However, such cultivation process has more defects: 1. when the new water is injected, the temperature and the water quality of the new water are difficult to control; 2. the sewage is discharged and new water is injected, so that the aim of saving water is fulfilled, the consumption of water resources is still high, and the discharged sewage can cause environmental pollution; 3. the existing sewage filtration is direct filtration, so that a large amount of dirt is quickly accumulated in a filter layer, and the use efficiency of the filter layer is low; 4. when sewage is discharged, because the volume of the fry is small, part of the fry is discharged together, and the yield and the survival rate are reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a water circulating system that fry was bred, its structural design is reasonable, is favorable to improving the success rate that fry was cultivated to overcome the weak point among the prior art.
To achieve the purpose, the utility model adopts the following technical proposal:
a water circulation system for fry culture comprises a water inlet pool, a fry culture barrel, a water collecting pool and a filtering pool which are connected in sequence;
the water inlet pool is provided with a water inlet pump, the water inlet pump is connected with a water inlet pipe, an outlet of the water inlet pipe is positioned right above the fry breeding barrel, and the water inlet pool is used for feeding water into the fry breeding barrel through the water inlet pipe;
the bottom of the fry breeding barrel is provided with a water return pipe, and the water return pipe is communicated with the water collecting tank;
the filtering tank is arranged adjacent to the water collecting tank, the filtering tank is of a rectangular structure, and biological filler is filled in the filtering tank; a water passing pipe is arranged on any side wall in the short edge direction of the filtering tank, and the water collecting tank and the filtering tank are communicated with each other through the water passing pipe; two inside walls of the long side direction of the filter tank are provided with a plurality of clapboards and are arranged on one side, a gap is reserved between the clapboards and the other side of the inside walls, the clapboards are arranged in a staggered mode, and the other side wall of the short side direction of the filter tank is provided with a water passing pipe communicated with the water inlet tank.
Preferably, the partition plate is perpendicular to the inner side wall of the filter tank, and the length of the partition plate is at least 2/3 times of the length of the side wall in the short side direction of the filter tank.
Preferably, the bottom of the filtering tank is provided with an overflow hole, the top of the overflow hole is connected with an overflow pipe, the liquid inlet surface of the pipe orifice at the top of the overflow pipe is lower than the height of the side wall of the filtering tank, and the tail end of the overflow pipe is connected with the water collecting tank.
Preferably, a drain outlet is formed in the bottom of the water collecting tank, and the bottom of the water collecting tank inclines towards the drain outlet.
Preferably, the inlet tube slope set up in directly over the bucket is bred to the fry, the inlet tube with the angle of inclination between the horizontal plane of liquid level is 30 ~ 45 in the bucket is bred to the fry.
Preferably, the water inlet pipe is provided with a water inlet valve.
Preferably, one end of the water return pipe, which is close to the water collecting tank, is also communicated with a sewage discharge pipe, the diameter of the sewage discharge pipe is larger than that of the water return pipe, and the sewage discharge pipe is also provided with a sewage discharge valve.
Preferably, the fry breeding barrel comprises a barrel body and a liquid level limiting device;
the barrel body comprises a barrel wall and a barrel bottom, the lower end of the barrel wall is obliquely arranged towards the interior of the barrel body, the barrel bottom is of an inverted cone structure, a step position is downwards arranged at the cone top of the inverted cone structure, and the liquid level limiting device is detachably mounted at the step position;
the liquid level limiting device comprises a filter pipe and a water level pipe, the water level pipe is arranged inside the filter pipe, and the installation height of the filter pipe is higher than that of the water level pipe;
the filter pipe is arranged at the step position, an annular filter screen is arranged at the lower part of the filter pipe, and the installation position of the annular filter screen is positioned at the top of the step position;
the water outlet is formed in the bottom of the step position, the water level pipe penetrates through the water outlet and is installed on the step position, and the tail end of the water level pipe protrudes out of the barrel body.
Preferably, the water returning pipe includes a drain pipe connected to a distal end of the water level pipe, and a circulation pipe connected to a distal end of the drain pipe.
Preferably, the circulation pipe has a diameter larger than that of the drain pipe.
The utility model has the advantages that: the water circulation system that this technical scheme provided that fry was bred, its structural design is reasonable, is favorable to improving the success rate that fry was cultivated.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
Fig. 1 is a schematic structural view of a water circulation system for fry breeding of the utility model.
Fig. 2 is a sectional view (installation state) of the fry rearing barrel in the fry rearing water circulation system of the utility model.
Fig. 3 is a sectional view (non-mounted state) of a fry rearing tub in a fry rearing water circulation system.
Wherein: the fry rearing device comprises a water inlet pool 1, a water inlet pump 11, a water inlet pipe 12, a water inlet valve 121, a fry rearing barrel 2, a water return pipe 21, a water discharge pipe 211, a water discharge valve 2111, a circulating pipe 212, a circulating valve 2121, a sewage discharge pipe 22, a sewage discharge valve 221, a barrel body 23, a barrel wall 231, a barrel bottom 232, a step 233, a rubber gasket 2331, a liquid level limiting device 24, a filter pipe 241, an annular filter screen 2411, a water level pipe 242, a water collecting pool 3, a sewage discharge port 31, a filter pool 4, a partition plate 41 and an overflow pipe.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
A water circulation system for fry culture comprises a water inlet pool 1, a fry culture barrel 2, a water collecting pool 3 and a filtering pool 4 which are connected in sequence;
the water inlet pool 1 is provided with a water inlet pump 11, the water inlet pump 11 is connected with a water inlet pipe 12, the outlet of the water inlet pipe 12 is positioned right above the fry breeding barrel 2, and the water inlet pool 1 feeds water into the fry breeding barrel 2 through the water inlet pipe 12;
a water return pipe 21 is arranged at the bottom of the fry breeding barrel 2, and the water return pipe 21 is communicated with the water collecting tank 3;
the filtering tank 4 is arranged adjacent to the water collecting tank 3, the filtering tank 4 is of a rectangular structure, and biological filler is filled in the filtering tank 4; a water passing pipe is arranged on any side wall of the filtering tank 4 in the short side direction, and the water collecting tank 3 and the filtering tank 4 are communicated with each other through the water passing pipe; two inside walls of the long side direction of the filtering tank 4 are provided with a plurality of partition plates 41 and are arranged on one side, a gap is reserved between the partition plates 41 and the other side of the inside walls, the partition plates 41 are arranged in a staggered mode, and the other side wall of the short side direction of the filtering tank 4 is provided with a water passing pipe communicated with the water inlet tank 1.
Fry breeding is a very important link of the aquaculture industry, and the success or failure of the breeding directly affects the economic benefit. However, in actual production, the success rate of fry rearing is always unstable, and factors influencing the success rate of fry are more, but are mainly influenced by the condition of quality of water in the rearing process.
In order to save water resources and improve the water quality of circulating water during fry culture, the technical scheme provides a fry culture water circulating system which comprises a water inlet pool 1, a fry culture barrel 2, a water collecting pool 3 and a filtering pool 4 which are sequentially connected; the water that the fry bred the usefulness gets into each fry breeding bucket 2 from intake pool 1 through inlet tube 12, and after a period of breed, the water accessible wet return 21 in the fry breeding bucket 2 is collected to catch basin 3, makes the water in the catch basin 3 get back to intake pool 1 after the effective filtration of filtering ponds 4 for the cyclic utilization of fry breeding water. The utility model provides a water circulating system that fry was bred, its simple structure is reasonable, can effectively guarantee the quality of water promotion of fry breeding circulating water, is favorable to improving the success rate that fry was cultivated.
Furthermore, the inside of the filter tank 4 is filled with biological filler, anaerobic bacteria grow inside the biological filler to generate denitrification effect to denitrify the water body, aerobic bacteria grow outside the biological filler to remove organic matters in the water body, and the water quality of the water for culturing the fry is further improved. The filtering tank 4 is provided with a plurality of partition plates 41 which are staggered with each other to form a circuitous structure; water from the water pipe gets into filtering ponds 4 after, gets into through circuitous structure intake pool 1, filtering ponds 4 that have circuitous structure are favorable to the water and the abundant contact and the reaction of biofilm carrier, help further promoting the quality of water of fry breed water.
More specifically, the partition plate 41 is perpendicular to the inner side wall of the filter tank 4, and the length of the partition plate 41 is at least 2/3 of the length of the side wall in the short side direction of the filter tank 4.
With the inside wall of baffle 41 perpendicular to filtering ponds 4, and the length of baffle 41 is 2/3 of the lateral wall length of the minor face direction of filtering ponds 4 at least, can effectively increase the flow path of water, more be favorable to the water and the abundant contact and the reaction of biofilm carrier, help promoting the quality of water of fry breeding water.
More specifically, an overflow hole is formed in the bottom of the filtering tank 4, an overflow pipe 42 is connected to the top of the overflow hole, the liquid inlet surface of the pipe orifice at the top of the overflow pipe 42 is lower than the height of the side wall of the filtering tank 4, and the end of the overflow pipe 42 is connected to the collecting tank 3.
Further, an overflow hole is formed in the bottom of the filtering tank 4, the overflow pipe 42 is connected to the top of the overflow hole, the liquid inlet surface of the opening in the top of the overflow pipe 42 is lower than the height of the side wall of the filtering tank 4, the arrangement of the overflow pipe 42 is beneficial to preventing the water from being delivered to the filtering tank 4 in a centralized manner by the water collecting tank 3, waste of water caused by the fact that the water capacity of the filtering tank 4 is too much and flowing to the ground is avoided, and the tail end of the overflow pipe 42 is connected with the water collecting tank 3 and beneficial to collection and reuse of water.
Further, a drain outlet 31 is formed at the bottom of the water collecting tank 3, and the bottom of the water collecting tank 3 is inclined toward the drain outlet 31.
The water in the water collecting tank 3 is the waste water after the fry is bred, the inside contains the excrement that produces in a large amount of fry breeding processes, for the discharge of the excrement of concentrating on the 3 bottoms of water collecting tank, drain 31 has been seted up to the bottom of water collecting tank 3, and the bottom of water collecting tank 3 is to the slope of drain 31, is favorable to the discharge of the excrement of the 3 bottoms of water collecting tank.
Further, the water inlet pipe 12 is obliquely arranged right above the fry breeding barrel 2, and the inclination angle between the water inlet pipe 12 and the horizontal plane of the liquid level in the fry breeding barrel 2 is 30-45 degrees.
The slope of inlet tube 12 sets up directly over bucket 2 is bred to the fry, and inlet tube 12 with the angle of inclination between the horizontal plane of liquid level is 30 ~ 45 in bucket 2 is bred to the fry, as shown in contained angle a in fig. 2, the inlet tube 12 that the slope set up is favorable to intaking the liquid level formation swirl of bucket 2 is bred to the fry, under the drive that has the swirl of centripetal force, the excrement in bucket 2 is bred to the fry can be followed rivers and is bred the barrel head of bucket 2 and gather to the fry, is favorable to the blowdown that bucket 2 was bred to the fry.
Further, the inlet pipe 12 is provided with an inlet valve 121.
Furthermore, one end of the return pipe 21 close to the water collecting tank 3 is further communicated with a sewage discharge pipe 22, the diameter of the sewage discharge pipe 22 is larger than that of the return pipe 21, and the sewage discharge pipe 22 is further provided with a sewage discharge valve 221.
Because of the long-term use of wet return 21, the excrement that has the fry has been gathered unavoidably in the bottom of wet return 21, in order to make excrement discharge wet return 21, the one end intercommunication that is close to water catch bowl 3 at wet return 21 has blow off pipe 22, and the diameter of blow off pipe 22 is greater than the diameter of wet return 21, is favorable to the rivers in wet return 21 to get into blow off pipe 22 from wet return 21, and blow off pipe 22 still is provided with blowoff valve 221, and the setting of blowoff valve is favorable to the periodic blowdown of wet return 21.
In a further description, the fry rearing barrel 2 comprises a barrel body 23 and a liquid level limiting device 24;
the barrel body 23 comprises a barrel wall 231 and a barrel bottom 232, the lower end of the barrel wall 231 is obliquely arranged towards the interior of the barrel body 23, the barrel bottom 232 is of an inverted cone structure, a stepped position 233 is downwards arranged at the cone top of the inverted cone structure, and the liquid level limiting device 24 is detachably mounted at the stepped position 233;
the liquid level limiting device 24 comprises a filter pipe 241 and a water level pipe 242, the water level pipe 242 is arranged inside the filter pipe 241, and the installation height of the filter pipe 241 is higher than that of the water level pipe 242;
the filter pipe 241 is mounted on the stepped portion 233, an annular filter screen 2411 is mounted at the lower part of the filter pipe 241, and the mounting position of the annular filter screen 2411 is located at the top of the stepped portion 233;
a water outlet is formed in the bottom of the stepped portion 233, the water level pipe 242 passes through the water outlet and is installed on the stepped portion 233, and the tail end of the water level pipe 242 is protrudingly arranged on the barrel body 23.
The fry cultivating barrel is used for a barrel-shaped water flowing device for cultivating fish and other aquatic animal fries into adult fishes. The fry can produce excrement in the culture process, and the excrement can be deposited at the bottom of the culture barrel. Because the excrement deposits in breeding the bottom of the barrel, and breed the bucket and have fry and water in, the manual work is difficult to clear up to breeding the barrel bottom, leads to the excrement to pile up always, influences quality of water.
The fry breeding barrel in the prior art is generally provided with a water outlet at the bottom of the barrel, and a filter screen is arranged above the water outlet in order to prevent the fry from migrating from the water outlet and simultaneously discharging excrement of the fry. Although the setting of filter screen can prevent that the fry from following the discharge outlet and wandering away the excrement of fry simultaneously, this fry breeding barrel is at the in-process of breeding for a long time, and a large amount of fry excrement can be gathered in filter screen department and make the phenomenon that the bottom of fry breeding barrel appears blockking up, can hinder the drainage of fry breeding barrel on the one hand, and on the other hand still can influence the quality of water that the fry was bred.
The fry breeding barrel 2 provided by the technical scheme comprises a barrel body 23 and a liquid level limiting device 24;
the bucket body 23 comprises a bucket wall 231 and a bucket bottom 232, the lower end of the bucket wall 231 is inclined towards the inside of the bucket body 23, and the bucket bottom 232 is of an inverted cone structure, so that excrement is precipitated towards the bucket bottom of the fry breeding bucket 2, and the excrement is discharged.
A step 233 is arranged downwards at the cone top of the inverted cone structure, and the liquid level limiting device 24 is detachably arranged at the step 233; the liquid level limiting device 24 comprises a filter pipe 241 provided with an annular filter screen 2411 and a water level pipe 242, the water level pipe 242 is arranged inside the filter pipe 241, and the installation height of the filter pipe 241 is higher than that of the water level pipe 242; a water outlet is formed at the bottom of the stepped portion 233, a water level pipe 242 passes through the water outlet and is installed at the stepped portion 233, and the tail end of the water level pipe 242 is protrudingly disposed on the tub body 23.
When the liquid level limiting device 24 is installed at the step 233, the installation height of the water level pipe 242 determines the water level height of the fry rearing barrel 2, when the water level in the fry rearing barrel 2 is too high, the water enters the filter pipe 241 through the annular filter net 2411 and flows out of the fry rearing barrel 2 through the water level pipe 242. If the water body is to flow out from the water level pipe 242, the water body must pass through the annular filter screen 2411, and the annular filter screen 2411 can effectively prevent the fry from entering and is beneficial to filtering the excrement of the fry.
When liquid level stop device 24 is dismantled from step 233, the outside that bucket 2 was bred to the fry can be flowed out through the delivery port that step 233 bottom set up fast to the water in the fry was bred bucket 2, and further, liquid level stop device 24's dismantlement setting still is favorable to operating personnel to annular filter 2411's washing, can effectively prevent annular filter 2411's jam, guarantees the clean of quality of water in the fry breeding bucket 2 simultaneously.
Preferably, the lower end of the tub wall 231 is inclined toward the inside of the tub 23 at an inclination angle of 2 to 5 °.
The slope of inlet tube 12 sets up directly over bucket 2 is bred to the fry, again with the lower extreme of bucket wall 231 to the inside slope setting of staving 23 is mutually supported, and inclination is 2 ~ 5, as shown by contained angle b in fig. 2, can further be favorable to forming the swirl at the liquid level that bucket 2 was bred to the fry when intaking, under the drive that has the swirl of centripetal force, the excrement in bucket 2 is bred to the fry can be followed rivers and is bred the barrel head of bucket 2 and gather to the fry, is favorable to the blowdown that bucket 2 was bred to the fry.
Preferably, the included angle between the cross section of the barrel bottom 232 in the vertical direction and the horizontal direction is 10-15 degrees.
The included angle between the vertical section of the barrel bottom 232 and the horizontal direction is 10-15 degrees, and the included angle c in fig. 2 is helpful for improving the sewage discharge effect.
Preferably, the length of the annular filter screen 2411 is at least 1/3 of the length of the filter pipe 241.
Further, the return pipe 21 includes a drain pipe 211 and a circulation pipe 212, the drain pipe 211 is connected to a distal end of the water level pipe 242, and the circulation pipe 212 is connected to a distal end of the drain pipe 211.
The drain pipe 211 is connected to the end of the water level pipe 242 for draining the water in the fry rearing tank 2, and the circulation pipe 212 is connected to the end of the drain pipe 211 for collecting and recycling the water in the fry rearing tank 2.
Preferably, the drain pipe 211 is provided with a drain valve 2111.
Because the leakproofness of fry rearing bucket 2 relies on the installation cooperation of liquid level stop device 24 and step 233, for avoiding the leakage problem that brings because of liquid level stop device 24 and step 233 installation unstability, this technical scheme still is provided with drain valve 2111 at drain pipe 211, and drain valve 2111 is used for opening and closing of drain pipe 211, is favorable to improving the leakproofness that fry rearing bucket 2.
Preferably, the circulation pipe 212 is provided with a circulation valve 2121.
To explain further, the diameter of the circulation pipe 212 is larger than that of the drain pipe 211.
In an embodiment of the present technical solution, the diameter of the circulation pipe 212 is set to be larger than the diameter of the drain pipe 211, which is helpful for slowing down the flow speed of the water body in the circulation pipe 212, and is beneficial for settling of excrement in the water body backflow process, thereby improving the water quality of the water for circulation culture.
Preferably, the diameter of the filtering pipe 241 is equal to the diameter of the step 233.
Because the leakproofness of fry rearing bucket 2 relies on the installation cooperation of liquid level stop device 24 and step 233, for avoiding the leakage problem that brings because of liquid level stop device 24 and step 233 installation are unstable, this technical scheme still equals the diameter of filter tube 241 and the diameter of step 233, is favorable to improving the installation stability of liquid level stop device 24 and step 233.
Preferably, a rubber pad 2331 is disposed on the inner side wall of the step 233, and the rubber pad 2311 is used for stably mounting the filter pipe 241.
The rubber pad 2331 is provided to further improve the sealing performance of the fry rearing barrel 2.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a water circulating system that fry was bred which characterized in that: comprises a water inlet pool, a fry breeding barrel, a water collecting pool and a filtering pool which are connected in sequence;
the water inlet pool is provided with a water inlet pump, the water inlet pump is connected with a water inlet pipe, an outlet of the water inlet pipe is positioned right above the fry breeding barrel, and the water inlet pool is used for feeding water into the fry breeding barrel through the water inlet pipe;
the bottom of the fry breeding barrel is provided with a water return pipe, and the water return pipe is communicated with the water collecting tank;
the filtering tank is arranged adjacent to the water collecting tank, the filtering tank is of a rectangular structure, and biological filler is filled in the filtering tank; a water passing pipe is arranged on any side wall in the short edge direction of the filtering tank, and the water collecting tank and the filtering tank are communicated with each other through the water passing pipe; two inside walls of the long side direction of the filter tank are provided with a plurality of clapboards and are arranged on one side, a gap is reserved between the clapboards and the other side of the inside walls, the clapboards are arranged in a staggered mode, and the other side wall of the short side direction of the filter tank is provided with a water passing pipe communicated with the water inlet tank.
2. The fry rearing water circulation system according to claim 1, characterized in that: the partition plate is perpendicular to the inner side wall of the filter tank, and the length of the partition plate is at least 2/3 of the length of the side wall in the short side direction of the filter tank.
3. The fry rearing water circulation system according to claim 1, characterized in that: the overflow hole has been seted up to the bottom of filtering ponds, the top in overflow hole is connected with the overflow pipe, the orificial inlet surface at the top of overflow pipe is less than the lateral wall height of filtering ponds, just the end of overflow pipe with the catch basin is connected.
4. The fry rearing water circulation system according to claim 1, characterized in that: the bottom of the water collecting tank is provided with a drain outlet, and the bottom of the water collecting tank inclines towards the drain outlet.
5. The fry rearing water circulation system according to claim 1, characterized in that: the inlet tube slope set up in directly over the bucket is bred to the fry, the inlet tube with the angle of inclination between the horizontal plane of liquid level is 30 ~ 45 in the bucket is bred to the fry.
6. The fry rearing water circulation system according to claim 5, characterized in that: the water inlet pipe is provided with a water inlet valve.
7. The fry rearing water circulation system according to claim 1, characterized in that: one end of the water return pipe, which is close to the water collecting tank, is also communicated with a sewage discharge pipe, the diameter of the sewage discharge pipe is larger than that of the water return pipe, and the sewage discharge pipe is also provided with a sewage discharge valve.
8. The fry rearing water circulation system according to claim 1, characterized in that: the fry breeding barrel comprises a barrel body and a liquid level limiting device;
the barrel body comprises a barrel wall and a barrel bottom, the lower end of the barrel wall is obliquely arranged towards the interior of the barrel body, the barrel bottom is of an inverted cone structure, a step position is downwards arranged at the cone top of the inverted cone structure, and the liquid level limiting device is detachably mounted at the step position;
the liquid level limiting device comprises a filter pipe and a water level pipe, the water level pipe is arranged inside the filter pipe, and the installation height of the filter pipe is higher than that of the water level pipe;
the filter pipe is arranged at the step position, an annular filter screen is arranged at the lower part of the filter pipe, and the installation position of the annular filter screen is positioned at the top of the step position;
the water outlet is formed in the bottom of the step position, the water level pipe penetrates through the water outlet and is installed on the step position, and the tail end of the water level pipe protrudes out of the barrel body.
9. The fry rearing water circulation system according to claim 8, wherein: the water return pipe comprises a drain pipe and a circulating pipe, the drain pipe is connected to the tail end of the water level pipe, and the circulating pipe is connected to the tail end of the drain pipe.
10. The fry rearing water circulation system according to claim 9, wherein: the diameter of the circulating pipe is larger than that of the drain pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922312182.7U CN211211042U (en) | 2019-12-20 | 2019-12-20 | Water circulation system that fry was bred |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922312182.7U CN211211042U (en) | 2019-12-20 | 2019-12-20 | Water circulation system that fry was bred |
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| CN211211042U true CN211211042U (en) | 2020-08-11 |
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| CN201922312182.7U Active CN211211042U (en) | 2019-12-20 | 2019-12-20 | Water circulation system that fry was bred |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112106704A (en) * | 2020-10-28 | 2020-12-22 | 广东梁氏水产种业有限公司 | Application of bdellovibrio bacteriovorus in improvement of domestication rate of siniperca chuatsi artificial feed |
| CN113303254A (en) * | 2021-06-17 | 2021-08-27 | 浙江省海洋水产研究所 | Closed type circulating fry rearing device and method applied to laboratory |
| CN113457275A (en) * | 2021-07-28 | 2021-10-01 | 浙江省海洋水产研究所 | Water filter device and have this filter device's pond of growing seedlings |
-
2019
- 2019-12-20 CN CN201922312182.7U patent/CN211211042U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112106704A (en) * | 2020-10-28 | 2020-12-22 | 广东梁氏水产种业有限公司 | Application of bdellovibrio bacteriovorus in improvement of domestication rate of siniperca chuatsi artificial feed |
| CN113303254A (en) * | 2021-06-17 | 2021-08-27 | 浙江省海洋水产研究所 | Closed type circulating fry rearing device and method applied to laboratory |
| CN113303254B (en) * | 2021-06-17 | 2022-06-14 | 浙江省海洋水产研究所 | Closed type circulating fry rearing device and method applied to laboratory |
| CN113457275A (en) * | 2021-07-28 | 2021-10-01 | 浙江省海洋水产研究所 | Water filter device and have this filter device's pond of growing seedlings |
| CN113457275B (en) * | 2021-07-28 | 2022-07-01 | 浙江省海洋水产研究所 | Water filter device and have this filter device's pond of growing seedlings |
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