CN212184723U

CN212184723U - Shrimp plant

Info

Publication number: CN212184723U
Application number: CN202020782063.8U
Authority: CN
Inventors: 蔡周华; 吴熙; 蒋文龙
Original assignee: Sichuan Lvkang Dadi Technology Co ltd
Current assignee: Sichuan Lvkang Dadi Technology Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-12-22
Anticipated expiration: 2030-05-12

Abstract

The utility model relates to the technical field of shrimp culture, and discloses a shrimp culture farm, which comprises a field and a greenhouse structure covering the field, wherein the field is provided with a culture module, a new water treatment module, a tail water treatment module and a water purification module; the breeding module is formed by combining a plurality of multistage breeding ponds, the new water treatment module is used for treating new water introduced from the outside, the tail water treatment module is used for treating tail water discharged by the breeding module, and the water purification module can purify water treated by the tail water treatment module and the new water treatment module and then supply the purified water to the breeding module. The utility model provides a current shrimp adopt when breeding the pond mode and breed, can not effectively utilize plant's place space, lead to the shrimp to breed the problem that output is low. Still solved current shrimp plant and did not mostly be provided with hydrologic cycle processing system, can't carry out the circulation treatment to breeding pond tail water, the sewage of direct emission not only can the polluted environment, still can cause the problem of water waste.

Description

Shrimp plant

Technical Field

The utility model relates to a shrimp breeds technical field, specifically indicates a shrimp plant.

Background

The shrimp culture is an industry for carrying out artificial feeding production by taking shrimps with higher economic value as objects. The culture modes include pond culture, bay culture, net cage culture and the like, and also culture methods of polyculture of fish, shrimps, shellfish and the like are adopted. The cultured species are, in the case of marine shrimp, mainly Penaeus vannamei, Penaeus japonicus, Penaeus chinensis, Penaeus monodon, and the like, which are prawn species, and some of the cultured lobsters are cultured in the south China. As freshwater shrimps, there are macrobrachium rosenbergii and the like.

Besides the above culture modes, there is a culture mode similar to the above pond culture, which is to culture shrimps by constructing culture ponds in a field, and has the advantages of low requirement on the field environment, satisfying culture conditions by reconstruction, and facilitating observation and daily management because each culture pond has a relatively small area compared with the pond. Although culture in culture ponds has certain advantages over pond culture, the following problems still exist in the existing culture in culture ponds:

firstly, in the culture growth period of the shrimps, the shrimp individual is small in the early stage, the required culture area is small, but the whole process of shrimp culture in the existing culture mode is completed in a culture pond, and in order to meet the culture area requirement of finished shrimps, the specification and the size of the culture pond are planned according to the required culture activity area of the finished shrimps. Therefore, the field utilization rate of the farm is low, and the field area cannot be effectively utilized, so that the shrimp yield is low;

secondly, in the shrimp culture process, because the residual bait and the shrimp excrement in the culture pond can be continuously accumulated, the continuously accumulated residual bait and the shrimp excrement can be deposited at the bottom of the culture pond for anaerobic decomposition, thereby generating a large amount of harmful substances, spoiling the water quality, causing the culture environment to deteriorate and influencing the health of the shrimps. Therefore, the culture pond needs to discharge sewage and change water in due time, but most of the existing shrimp culture farms are not provided with a water circulation treatment system and cannot circularly treat tail water of the culture pond. The directly discharged sewage not only pollutes the environment, but also causes water resource waste.

SUMMERY OF THE UTILITY MODEL

Based on above technical problem, the utility model provides a shrimp plant. The problem of current shrimp adopt when breeding the pond mode and breed, can not effectively utilize plant place space, lead to shrimp to breed output low is solved. Still solved current shrimp plant and did not mostly be provided with hydrologic cycle processing system, can't carry out the circulation treatment to breeding pond tail water, the sewage of direct emission not only can the polluted environment, still can cause the problem of water waste.

For solving the above technical problem, the utility model discloses a technical scheme as follows:

a shrimp farm comprises a field and a greenhouse structure covering the field, wherein the field is provided with a culture module, a fresh water treatment module, a tail water treatment module and a water purification module; the breeding module is formed by combining a plurality of multistage breeding ponds, the new water treatment module is used for treating new water introduced from the outside, the tail water treatment module is used for treating tail water discharged by the breeding module, and the water purification module can purify water treated by the tail water treatment module and the new water treatment module and then supply the purified water to the breeding module.

As a preferred mode, the multi-stage culture pond comprises a first-stage culture pond, a second-stage culture pond and a third-stage culture pond which are sleeved inside and outside, and the culture areas of the first-stage culture pond, the second-stage culture pond and the third-stage culture pond are sequentially increased; the first-level culture pond, the second-level culture pond and the third-level culture pond are all provided with openable and closable water outlets, and the water outlets are provided with escape-proof nets or escape-proof grids.

As a preferred mode, the three-level culture pond is of a rectangular structure.

As a preferable mode, the first-stage culture pond and the second-stage culture pond and the third-stage culture pond are communicated through the openable shrimp discharging port.

As an optimal mode, the first-level culture pond, the second-level culture pond and the third-level culture pond are distributed in a ladder shape, and the heights of the bottoms of the first-level culture pond, the second-level culture pond and the third-level culture pond are sequentially reduced.

As a preferred mode, a water inlet mechanism, an oxygen increasing mechanism and a heating mechanism are arranged in the first-level culture pond, the second-level culture pond and the third-level culture pond; the water inlet mechanism comprises a water inlet pipe for introducing the culture water into the culture pond and a water inlet valve for controlling the opening and closing of the water inlet pipe; the oxygen supply mechanism comprises an oxygen supply pipe connected with the oxygen supply equipment and an oxygen supply valve for controlling the opening and closing of the oxygen supply pipe, and the oxygen supply pipe is laid around the bottom of the culture pond; the heating mechanism comprises a heating pipe connected with the heating equipment in a circulating manner and a heating valve for controlling the opening and closing of the heating pipe, and a heating pipeline is laid around the bottom of the culture pond.

In a preferred form, the site is fitted with a plate heat exchanger connected to the heating plant.

As a preferred mode, the fresh water treatment module comprises a fresh water pool and a blending pool, and fresh water is treated by the fresh water pool and the blending pool and then discharged into the first water storage pool to be stored for later use.

As a preferred mode, the tail water treatment module comprises a septic tank, a first sedimentation tank and at least one purification tank, and tail water is discharged into a first reservoir for storage and standby after being sequentially treated by the septic tank, the first sedimentation tank and the purification tank.

As a preferred mode, the water purification module comprises a protein separator, a solid-liquid separator, a second sedimentation tank, a biochemical tank and an ultraviolet sterilization device, and water treated by the tail water treatment module and the new water treatment module is discharged into a second reservoir for storage and standby after being sequentially treated by the protein separator, the solid-liquid separator, the second sedimentation tank, the biochemical tank and the ultraviolet sterilization device.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses in utilize multistage breed pond shrimp class to carry out hierarchical breed, pond, second grade are bred to one-level and pond and the three shrimp of breeding in tertiary breed pond breed the pond and breed the different growth period respectively to can effectively utilize the plant place, increase shrimp breed output. In addition, the one-level is bred pond, the pond is bred to second grade and the three pond is bred to the tertiary pond is inside and outside cup jointing to be set up, can make things convenient for the transportation of shrimp, reduces the damage of shrimp when transporting.

(2) The utility model discloses thereby in can handle the tail water that the module produced to the new water that outside got into, breed through new water treatment module, tail water treatment module and water purification module, constitute the water treatment system of inside and outside circulation to the tail water that makes the module production of breeding can be recycled, reduces water resource use amount and sewage discharge, avoids environmental pollution, makes whole plant energy-concerving and environment-protective more.

Drawings

FIG. 1 is a schematic plan view of a shrimp farm.

FIG. 2 is a schematic cross-sectional view of a shrimp farm.

FIG. 3 is a schematic diagram of arrangement of water outlets and shrimp outlets of a multi-stage culture pond.

FIG. 4 is a schematic diagram of the arrangement of the water inlet mechanisms of the multi-stage culture pond.

FIG. 5 is a schematic diagram of the layout of the heating mechanism of the multi-stage culture pond.

FIG. 6 is a schematic diagram of the arrangement of the oxygen increasing mechanisms of the multi-stage culture pond.

The device comprises a fresh water pool 1, a blending pool 2, a first reservoir 3, a purification pool 4, a septic tank 5, a first sedimentation pool 6, an equipment room 7, an ultraviolet sterilization device 8, a plate-type heat exchanger 9, a biochemical pool 10, a protein separator 11, a solid-liquid separator 12, a second sedimentation pool 13, a second reservoir 14, a multi-stage culture pool 15, a third-stage culture pool 1501, a second-stage culture pool 1502, a first-stage culture pool 1503, a duty room 16, a workshop storehouse 17, a greenhouse 18, a water outlet 19, a shrimp outlet 20, a water inlet valve 21, a water inlet pipe 22, a heating pipe 23, a heating valve 24, an oxygen supply pipe 25 and an oxygen supply valve 26.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Example 1:

referring to fig. 1-6, a shrimp farm comprises a field and a greenhouse 18 structure covering the field, wherein the field is provided with a culture module, a fresh water treatment module, a tail water treatment module and a water purification module; the breeding module is composed of a plurality of multistage breeding ponds 15 in a combined mode, the new water treatment module is used for treating new water introduced from the outside, the tail water treatment module is used for treating tail water discharged by the breeding module, and the water purification module can purify water treated by the tail water treatment module and the new water treatment module and then supply the purified water to the breeding module.

In this embodiment, the 18 structures of big-arch shelter make the plant be indoor structure, compare in open-air breed, and indoor breed can not receive the influence of factors such as region, environment, weather, environmental suitability is strong. The shrimp that utilizes the 15 combination of multistage breed pond to constitute of breed module carries out the breed in grades to the shrimp of different growth periods to the rational utilization plant place makes the plant breed output increase, improves the income. In addition, an internal and external water circulation system is formed by the new water treatment module, the tail water treatment module and the water purification module, so that tail water in the culture pond module can be recycled after treatment, sewage discharge and water resource usage are reduced, and the system is energy-saving and environment-friendly.

Example 2:

referring to fig. 1 to 6, the present embodiment is further optimized on the basis of embodiment 1, specifically:

the multi-stage culture pond 15 comprises a first-stage culture pond 1503, a second-stage culture pond 1502 and a third-stage culture pond 1501 which are sleeved inside and outside, and the culture areas of the first-stage culture pond 1503, the second-stage culture pond 1502 and the third-stage culture pond 1501 are sequentially increased; the first-level culture pond 1503, the second-level culture pond 1502 and the third-level culture pond 1501 are all provided with water outlets 19 which can be opened and closed, and the water outlets 19 are provided with escape-proof nets or escape-proof grids.

In this embodiment, the multistage culture pond 15 has a three-stage structure for performing staged culture of shrimps in different growth periods, for example, the penaeus vannamei boone of the three types of shrimps with the highest culture quantity has a culture period of generally three months, and the average body length of the penaeus vannamei boone in the three-month growth period is increased from 1 cm to about 14 cm. Because the shrimp individual grows, the required culture areas of the shrimp individual grow, the multistage culture pond 15 is divided into three stages, one month is taken as a culture stage and respectively corresponds to the first-stage culture pond 1503, the second-stage culture pond 1502 and the third-stage culture pond 1501, and all stages of culture ponds just can meet the culture of shrimps in each growth period, so that the field area of a culture farm is reasonably utilized, and the shrimp culture yield is increased.

Due to the hierarchical culture structure of the multi-stage culture pond 15, shrimp seedlings can be thrown into the first-stage culture pond 1503 after the shrimps in the first-stage culture pond 1503 are transferred to the second-stage culture pond 1502, and the second-stage culture pond 1502 and the third-stage culture pond 1501 are similar to the first-stage culture pond 1503 and the third-stage culture pond 1501. The circulation is repeated, so that the culture yield can be increased, the production interval of finished shrimps can be shortened, the march interval of the traditional culture pond is shortened to once a month, and the continuous supply of the finished shrimps can be achieved by controlling the feeding time of the shrimp seedlings in the multi-stage culture ponds 15.

Further, the third-level culture pond 1501 is of a rectangular structure. The tertiary pond 1501 of breeding of rectangle structure is as the outermost circle structure of multistage pond 15 of breeding, and when it and other multistage pond 15 combinations of breeding, the rectangle structure can conveniently splice, can not leave the space to utilize the place. And two adjacent three-stage culture ponds 1501 can share one side wall of the culture pond, so that the construction cost of the multi-stage culture pond 15 is saved.

Further, the first-stage culture pond 1503 is communicated with the second-stage culture pond 1502, and the second-stage culture pond 1502 is communicated with the third-stage culture pond 1501 through the openable shrimp discharge port 20. The prawn transporting method has the advantages that the prawn transporting is carried out by utilizing the prawn discharging port 20, and compared with the fishing transporting, the damage to the prawn can be reduced. Wherein, because the inside and outside cup joint structure of breed pond, arrange the position of shrimp mouth 20 and can set up at the pond lateral wall of breeding, set up conveniently, simple structure.

Furthermore, the first-level culture pond 1503, the second-level culture pond 1502 and the third-level culture pond 1501 are distributed in a ladder shape, and the heights of the bottoms of the first-level culture pond 1503, the second-level culture pond 1502 and the third-level culture pond 1501 are reduced in sequence. The stepped first-level culture pond 1503, the stepped second-level culture pond 1502 and the stepped third-level culture pond 1501 can conveniently transfer the shrimps from the first-level culture pond 1503 to the second-level culture pond 1502 and from the second-level culture pond 1502 to the third-level culture pond 1501 through the shrimp discharge port 20 by utilizing gravity drop.

Further, a water inlet mechanism, an oxygen increasing mechanism and a heating mechanism are arranged in the first-stage culture pond 1503, the second-stage culture pond 1502 and the third-stage culture pond 1501; the water inlet mechanism comprises a water inlet pipe 22 for introducing the culture water into the culture pond and a water inlet valve 21 for controlling the opening and closing of the water inlet pipe 22; the oxygen increasing mechanism comprises an oxygen supply pipe 25 connected with oxygen supply equipment and an oxygen supply valve 26 for controlling the opening and closing of the oxygen supply pipe 25, and the oxygen supply pipe 25 is laid around the bottom of the culture pond; the heating mechanism comprises a heating pipe 23 connected with the heating equipment in a circulating way and a heating valve 24 for controlling the opening and closing of the heating pipe 23, and the heating pipe 23 is laid around the bottom of the culture pond.

The water inlet mechanism is used for adding the aquaculture water into the aquaculture pond after tail water in the aquaculture pond is discharged, so that the aquaculture water quality is improved, the aquaculture efficiency is improved, and the healthy growth of shrimps is guaranteed.

Oxygenation mechanism provides oxygen for breeding the pond through oxygen supply equipment and oxygen supply pipe 25, because the breed density of shrimp is big during artificial breeding, and the growth demand of shrimp can not be satisfied to the oxygen of aquatic natural dissolution, thereby needs artifical oxygen suppliment to guarantee sufficient oxygen. The oxygen supply pipe 25 is laid around the bottom of the culture pond and the oxygen supply pipe 25 at the bottom of the culture pond is provided with air holes, so that oxygen can be uniformly supplied to the culture pond.

The heating mechanism utilizes heating equipment and heating pipe 23 to heat the water in the culture pond when the water temperature is lower than the suitable temperature for shrimp culture, wherein the heating equipment can be a boiler, and hot water heated by the boiler flows around through the culture pond through the heating pipe 23, so that the water in the culture pond is heated by the hot water, the heating is even, and the temperature rise is stable. Taking Penaeus vannamei Boone as an example, the optimal growth water temperature is 22-35 ℃. When the water temperature is lower than 18 ℃, food intake is reduced, growth is slow, food intake is stopped when the water temperature is lower than 15 ℃, and coma can occur when the water temperature is lower than 13 ℃ for a long time. Therefore, when the air temperature is low, the normal water temperature for shrimp culture and growth needs to be ensured by the heating mechanism, so that the optimal growth environment is maintained.

In addition, the multi-stage culture pond 15 has a hierarchical culture structure, and compared with a large culture pond structure, each stage of culture pond has a smaller area of a single culture pond, and the water temperature and the oxygen supply amount in the culture pond can be controlled more easily by people, so that a proper culture environment in the culture pond is ensured. And all be equipped with the valve on inlet tube 22, oxygen supply pipe 25, the heating pipe 23, the steerable switching of valve is also big or small, thereby adjusts its water supply volume, oxygen supply volume and temperature according to the particular case in each breed pond, and regulation and control is more accurate.

Further, the site is equipped with a plate heat exchanger 9 connected to the heating plant. The plate heat exchanger 9 can supply heat to the inside of the greenhouse 18 of the farm, and can maintain the water temperature in the culture pond by maintaining the indoor temperature under the condition of cold weather.

The other parts of this embodiment are the same as embodiment 1, and are not described herein again.

Example 3:

the fresh water treatment module comprises a fresh water pool 1 and a blending pool 2, and fresh water is treated by the fresh water pool 1 and the blending pool 2 and then discharged into a first water storage pool 3 for storage and standby.

Wherein, the fresh water is introduced into the fresh water pool 1 through an external pipeline, the silt in the water is precipitated through the fresh water pool 1, then the silt is introduced into the blending pool 2 for blending, and the blended water is transferred into the first water storage pool 3 for storage for standby application.

The allocating pool 2 is used for adding salt to allocate fresh water into salinity suitable for shrimp culture, taking Penaeus vannamei Boone as an example, the adaptive salinity for growth is 2-34 per mill, the most suitable salinity for growth is 10-20 per mill, and is similar to Penaeus vannamei Boone. Under the condition of gradual desalination, the penaeus vannamei boone can grow in fresh water with the salinity of 2 per mill, but the taste is slightly reduced, and the survival rate of long-distance transportation is relatively low.

The tail water treatment module comprises a septic tank 5, a first sedimentation tank 6 and at least one purification tank 4, and tail water is discharged into the first water reservoir 3 for storage and standby after being sequentially treated by the septic tank 5, the first sedimentation tank 6 and the purification tank 4.

Wherein, tail water in the culture pond is pumped into the septic tank 5 by a water pump, and organic matters contained in the water are precipitated in the septic tank 5 to form natural activated sludge and carry out anaerobic digestion. The organic substances such as residual bait, excrement and the like in the tail water are decomposed into inorganic substances such as methane, carbon dioxide, water, hydrogen sulfide and the like by facultative bacteria and anaerobic bacteria under the anaerobic condition, so that 30-50% of the organic substances contained in the organic substances are removed and stabilized, and the residual bait and the excrement precipitated by the treatment of the septic tank 5 can also be used as organic fertilizer for crop planting. Preferably, initial activated sludge is added to the septic tank 5 when the septic tank 5 is first used, to enhance its initial anaerobic digestion capacity.

The sewage after anaerobic digestion treatment in the septic tank 5 is transferred into a first sedimentation tank 6, supernatant liquid of the sewage is taken and transferred into a purification tank 4 after sedimentation, suspended organic matters are decomposed and converted into inorganic matters such as carbon dioxide, water, ammonia gas and the like through aerobic digestion of the suspended organic matters in the purification tank 4 under the action of aerobic microorganisms, so that fixed waste is reduced and the fixed waste exists in a more stable organic compound form. Wherein, the quantity of purifying pond 4 is at least one, and a plurality of purifying ponds 4 can purify for a plurality of times to make the tail water after the processing finally reach and purify detection standard. Preferably, an aeration device is arranged in the purification tank 4, so that air is introduced into the purification tank to promote the aerobic digestion reaction.

The tail water treated by the purifying tank 4 is transferred to the first water reservoir 3 for storage and standby.

The water purification module comprises a protein separator 11, a solid-liquid separator 12, a second sedimentation tank 13, a biochemical tank 10 and an ultraviolet sterilization device 8, and water treated by the tail water treatment module and the new water treatment module is sequentially treated by the protein separator 11, the solid-liquid separator 12, the second sedimentation tank 13, the biochemical tank 10 and the ultraviolet sterilization device 8 and then discharged into a second reservoir 14 for storage and standby application.

The protein separator 11 uses the principle that the surface of bubbles in water can adsorb various granular dirt and soluble organic matters mixed in water, and an oxygenating device or a vortex pump is used for generating a large amount of bubbles, so that the bubbles are used for adsorbing pollutants, the bubbles are all concentrated to form foam on the water surface, and the foam adsorbing the pollutants is collected and discharged, so that the water quality can be purified. Therefore, the organic matters are separated before being decomposed into toxic wastes, thereby reducing the burden of a subsequent biochemical purification system.

The solid-liquid separator 12 separates solid impurities from water in the water by the solid-liquid separator 12, thereby removing large-particle pollutants and algae impurities in the water. Preferably, the solid-liquid separator 12 may be a drum-type solid-liquid separator 12, and the drum-type solid-liquid separator 12 is based on the principle of centrifugal separation,

and the second sedimentation tank 13 removes small particle pollutants with finer particles by using sedimentation.

The biochemical tank 10 is used for treating pollutants by using a biodegradation principle, namely, the biochemical tank is used for carrying out anoxic, anaerobic and aerobic reactions by using the action of activated sludge microorganisms to remove organic matters, nitrogen and phosphorus in water so as to achieve the purification effect. And because the organic matters in the sewage decomposed by the microorganisms are converted into energy through metabolism and are synthesized into new cells, the residual sludge is extremely micro, the sludge does not need to be discharged, the environment is not polluted, and the environment-friendly requirement is met.

The ultraviolet sterilization device 8 destroys the molecular structure of DNA or RNA in the organism cells of the microorganism by ultraviolet rays with proper wavelength to cause death of growing cells or death of regenerative cells, thereby achieving the effect of sterilization and disinfection.

The aquaculture water in the second reservoir 14 can be discharged into the aquaculture pond for shrimp aquaculture if the aquaculture module requires it. Preferably, a water quality monitoring device can be further arranged in the second reservoir 14 and used for monitoring the water quality stored in the second reservoir 14, so that the water quality of the aquaculture water is ensured, and the influence on the health of the shrimps due to the fact that the aquaculture water which does not meet the water quality requirement enters the aquaculture pond is avoided.

The embodiment of the present invention is the above. The above embodiments and the specific parameters in the embodiments are only for the purpose of clearly showing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model, the patent protection scope of the utility model is still subject to the claims, all the equivalent structural changes made by using the contents of the specification and the drawings of the utility model are included in the protection scope of the utility model.

Claims

1. The utility model provides a shrimp plant, includes the place and with big-arch shelter (18) structure that the place covered, its characterized in that: the field is provided with a culture module, a fresh water treatment module, a tail water treatment module and a water purification module; the aquaculture module is composed of a plurality of multistage aquaculture ponds (15) in a combined mode, the new water treatment module is used for treating new water introduced from the outside, the tail water treatment module is used for treating tail water discharged by the aquaculture module, and the water after being treated by the tail water treatment module and the new water treatment module can be purified by the water purification module and then is supplied to the aquaculture module for use.

2. A shrimp farm according to claim 1, wherein: the multi-stage culture pond (15) comprises a first-stage culture pond (1503), a second-stage culture pond (1502) and a third-stage culture pond (1501) which are sleeved inside and outside, and the culture areas of the first-stage culture pond (1503), the second-stage culture pond (1502) and the third-stage culture pond (1501) are sequentially increased; the first-level culture pond (1503), the second-level culture pond (1502) and the third-level culture pond (1501) are all provided with water outlets (19) which can be opened and closed, and the water outlets (19) are provided with escape-proof nets or escape-proof grids.

3. A shrimp farm according to claim 2, wherein: the three-level culture pond (1501) is of a rectangular structure.

4. A shrimp farm according to claim 2, wherein: the first-level culture pond (1503) is communicated with the second-level culture pond (1502), and the second-level culture pond (1502) is communicated with the third-level culture pond (1501) through an openable and closable shrimp discharge port (20).

5. The shrimp farm of claim 4, wherein: the first-level culture pond (1503), the second-level culture pond (1502) and the third-level culture pond (1501) are distributed in a ladder shape, and the heights of the bottoms of the first-level culture pond (1503), the second-level culture pond (1502) and the third-level culture pond (1501) are reduced in sequence.

6. A shrimp farm according to claim 2, wherein: a water inlet mechanism, an oxygen increasing mechanism and a heating mechanism are arranged in the first-stage culture pond (1503), the second-stage culture pond (1502) and the third-stage culture pond (1501); the water inlet mechanism comprises a water inlet pipe (22) for introducing the culture water into the culture pond and a water inlet valve (21) for controlling the opening and closing of the water inlet pipe (22); the oxygenation mechanism comprises an oxygen supply pipe (25) connected with oxygen supply equipment and an oxygen supply valve (26) for controlling the oxygen supply pipe (25) to be opened and closed, and the oxygen supply pipe (25) is laid around the bottom of the culture pond; the heating mechanism comprises a heating pipe (23) connected with the heating equipment in a circulating manner and a heating valve (24) for controlling the heating pipe (23) to be opened and closed, and the heating pipe (23) is laid around the bottom of the culture pond.

7. A shrimp farm according to claim 6, wherein: and the site is provided with a plate type heat energy exchanger (9) connected with heating equipment.

8. A shrimp farm according to claim 1, wherein: the fresh water treatment module comprises a fresh water pool (1) and an allocation pool (2), and fresh water is discharged into the first water storage pool (3) after being treated by the fresh water pool (1) and the allocation pool (2) and stored for later use.

9. A shrimp farm according to claim 1, wherein: the tail water treatment module comprises a septic tank (5), a first sedimentation tank (6) and at least one purification tank (4), and tail water is discharged into the first reservoir (3) for storage and standby after being sequentially treated by the septic tank (5), the first sedimentation tank (6) and the purification tank (4).

10. A shrimp farm according to claim 1, wherein: the water purification module comprises a protein separator (11), a solid-liquid separator (12), a second sedimentation tank (13), a biochemical tank (10) and an ultraviolet sterilization device (8), and water treated by the tail water treatment module and the new water treatment module is sequentially treated by the protein separator (11), the solid-liquid separator (12), the second sedimentation tank (13), the biochemical tank (10) and the ultraviolet sterilization device (8) and then discharged into a second reservoir (14) for storage and standby application.