CN214593648U

CN214593648U - Unpowered dissolved oxygen supercharging device for aquatic culture system

Info

Publication number: CN214593648U
Application number: CN202120336108.3U
Authority: CN
Inventors: 张凯信; 吴秋田; 柯阳华; 杨心宸
Original assignee: Beijing Aike Fox Ecological Technology Co ltd
Current assignee: Beijing Aike Fox Ecological Technology Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-11-05
Anticipated expiration: 2031-02-05

Abstract

The utility model provides an unpowered dissolved oxygen supercharging device for aquatic farming system for place in the breed groove outlet of aquatic crustacean, including double-deck drain pipe and dissolved oxygen booster, double-deck drain pipe includes outer tube and inner tube, and the inner tube includes upper segment pipeline and hypomere pipeline, upper and lower section pipeline swing joint, outer tube outside bottom is provided with a plurality of inlet openings, and the top edge height of inner tube is less than the top edge height of outer tube, and the inner tube is used for controlling the water level height of breeding the groove, and the size of upper segment pipeline is the same with the size design of hypomere pipeline. The utility model discloses an unpowered dissolved oxygen supercharging device need not the air feed, also need not electric power oxygen-increasing machine or aeration machine, is applicable to the recirculating water aquaculture mode, especially the shallow water aquaculture mode of indoor batch production, improves the oxygen solubility in aeration, simple structure, convenience safe in utilization, economic nature is good.

Description

Unpowered dissolved oxygen supercharging device for aquatic culture system

Technical Field

The utility model relates to an oxygen supercharging device dissolves especially relates to an unpowered oxygen supercharging device that dissolves for aquatic farming systems.

Background

Dissolved oxygen is one of the most important water quality factors which are most prone to cause problems in aquaculture, and the actual dissolved oxygen of a water body changes all the time under the common influence of biological, physical and chemical factors and the like. When the dissolved oxygen in water is insufficient, firstly, the aquatic animals are directly adversely affected; and secondly, aquatic animals are indirectly influenced by influencing other biological and physicochemical indexes in the water environment, so that the aquatic animals are damaged in different degrees by growth, reproduction and even survival, the constitution is reduced and the growth is slowed down if the aquatic animals are slightly damaged, and the aquatic animals float and go to a pond if the aquatic animals are seriously damaged.

The oxygen dissolving increasing technology/device commonly used in the traditional shrimp culture industry in China is provided with an aerator, an aerator and the like and some related practical novel patent technologies.

1) An oxygen increasing machine is a machine which is often applied to fishery breeding industry. The main function of the device is to increase the oxygen content in water to ensure that the fish in the water can not lack oxygen, and simultaneously can inhibit the growth of anaerobic bacteria in the water, thereby preventing the deterioration of pond water from threatening the living environment of the fish. The aerator generally pumps air into water by an air pump carried by the aerator so as to achieve the purpose of increasing the oxygen content in the water.

2) The aerator directly injects 'micro bubbles' into water through the air dispersing impeller, so that the sucked air and the water are uniformly mixed, bubbles are generated to be fine and the quantity is large, and the dissolved oxygen rate is high.

3) The patent CN102870737A discloses an aeration device for aquaculture water, wherein a pressure water inlet pipe and a compressed air inlet pipe are respectively inserted into a gas-liquid mixing pipe along the axial direction of the vertically arranged gas-liquid mixing pipe and are communicated with the upper end of the inner cavity of the gas-liquid mixing pipe, the inner cavity of the gas-liquid mixing pipe is a round pipe-shaped cavity with a plurality of sections of helical blades arranged inside, the lower end of the inner cavity of the gas-liquid mixing pipe is communicated with one end of the inner cavity of the gas-liquid separating pipe through a bent pipe, the inner cavity of the gas-liquid separating pipe is a transversely arranged cylindrical cavity, the top of the inner cavity of the gas-liquid separating pipe is communicated with the upper end of the inner cavity of the gas-liquid mixing pipe through a gas recovery pipe, the other end of the inner cavity of the gas-liquid separating pipe is communicated with an oxygen-increasing water discharge pipe, the inner diameter of the gas-liquid separating pipe is larger than the inner diameter of the gas-liquid mixing pipe, the inner diameter of the oxygen-increasing water discharge pipe and the inner diameter of the bent pipe, and the pressure water pressure of the pressure water inlet pipe is larger than the pressure air pressure of the compressed air inlet pipe.

In the field of aquaculture, the aeration device mainly has the functions of providing sufficient oxygen for cultured animals and promoting the healthy growth of the cultured animals. The existing aeration devices are of two types: one is a blast aeration device, which is also divided into a macroporous aeration device, a mesoporous aeration device, a small-hole aeration device and a microporous aeration device; the other type is a mechanical surface aeration device, and an impeller and blades are usually rotated to hit the water surface to realize the purpose of oxygenation. The latter has high energy consumption and is not suitable for indoor industrial culture. So that blast aeration devices are commonly used at present.

With the development of aquaculture industry towards high density and intensification, the requirement on the concentration of dissolved oxygen in aquaculture water is higher and higher. Dissolved oxygen is usually the first limiting factor in the capacity of high density aquaculture. In order to meet the development requirements of modern aquaculture, pure oxygen is usually used as an air source of a blast aeration device in high-density industrial recirculating aquaculture, and in order to facilitate the dissolution of the pure oxygen in water, the oxygen dissolution is generally realized by independent equipment such as low-pressure oxygen dissolver, high-pressure oxygen dissolver and the like.

The oxygen increasing machine and the aerator both need a large amount of electric power for support, and are generally commonly used in a traditional outdoor shrimp culture mode and an indoor elevated pond culture mode, namely suitable for the condition that a culture water body has a certain depth; the technology provided by CN102870737A needs pressure water and pressure air, which means that manual power needs to be provided to obtain good oxygen dissolving effect; in a word, the current dissolved oxygen supercharging technology has requirements on water depth, needs additional power support, has poor applicability to a 10cm-20cm shallow water culture mode, and needs to consume electric power.

In addition, the mode of adopting the oxygen increasing machine and the aerator for oxygen increasing has the following defects:

1) in production practice, a plurality of remote aquatic farms have few oxygen production plants and pure oxygen is difficult to obtain, so that the development of high-density industrial aquaculture in local places is severely restricted.

2) The traditional blast aeration oxygen increasing device generally aerates air in a fish pond through an aeration stone and a micropore aeration disc, and the former has the defects of large bubbles, uneven bubbles, short air-water contact time, low oxygen utilization rate and the like; the latter has the disadvantages of large pressure loss, uneven air distribution, easy blockage, easy breakage and the like.

3) The oxygen generating and aerating equipment is required to be set specially, the requirement on the sealing performance of the whole set of equipment is very high, and if equipment failure and pipeline damage occur, pure oxygen leakage is caused, and production accidents are easily caused.

4) The method is mainly suitable for traditional deep water culture or indoor high-level pond culture, and has general applicability for indoor factory shallow water culture modes.

Therefore, there is a need for further improvements to the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an unpowered dissolved oxygen supercharging device for aquatic farming system can solve the not enough technical problem of water dissolved oxygen in the batch production indoor loop aquaculture mode.

The utility model provides an unpowered dissolved oxygen supercharging device for an aquatic culture system, which is used for being placed in a water outlet of a culture tank for aquatic crustaceans and comprises a double-layer water drainage pipe and an dissolved oxygen supercharger,

the double-layer drain pipe comprises an outer pipe and an inner pipe, the inner pipe comprises an upper pipeline and a lower pipeline, the upper pipeline is movably connected with the lower pipeline, a plurality of water inlet holes are formed in the bottom of the outer side of the outer pipe, the height of the upper edge of the inner pipe is lower than that of the upper edge of the outer pipe, the inner pipe is used for controlling the height of the water level of the culture tank, and the size of the upper pipeline is the same as that of the lower pipeline; the water flows in from the water inlet hole, and flows upwards to the upper edge opening of the inner pipe along the inner pipe, flows over the upper edge opening in a smooth manner, and flows downwards to the lower layer of the culture tank through the inside of the inner pipe;

the dissolved oxygen pressurizer is arranged in the inner pipe of the double-layer drain pipe to increase the dissolved oxygen content of the water body, the dissolved oxygen pressurizer comprises a fluid director, an air inlet pipe and a first guide plate,

the fluid director is arranged at the uppermost part and is designed into a disc shape;

the air inlet pipe is fixedly connected below the fluid director, an air inlet pipe is arranged in the middle of the air inlet pipe, and the air inlet pipe is communicated with external air;

the first guide plates are symmetrically arranged around the air inlet pipe and used for guiding water flow to flow downwards to the culture tank at the lower layer along the inner wall of the inner pipe.

Preferably, the inner wall of the inner pipe is provided with a second guide plate, and the second guide plate is arranged at the position with the same height as the lower port of the air inlet pipe and used for enabling water flow to be fully fused with air at the bottom end of the air inlet pipe.

Preferably, the inner wall of the inner pipe is further provided with a plurality of shower plates, and the shower plates are fixedly arranged in an upper-lower layered mode.

Preferably, the shower plate is provided as a mesh structure.

Preferably, the first baffle is a vane baffle.

Preferably, the number of the vane type guide plates is four, and the four vane type guide plates are symmetrically arranged around the air inlet pipe.

Preferably, the dissolved oxygen booster is designed to be a conical structure in shape.

Preferably, the flow director forms an angle of 30 degrees with the horizontal.

Preferably, the second baffle is provided as a vane baffle.

Preferably, the upper section pipeline and the lower section pipeline are connected through a threaded connection or a threaded joint.

The utility model discloses an unpowered dissolved oxygen supercharging device for aquatic farming system compares with prior art and has following beneficial effect:

1. the utility model discloses an unpowered dissolved oxygen supercharging device need not the air feed, also need not electric power oxygen-increasing machine or aeration machine, is applicable to the recirculating water aquaculture mode, especially the shallow water aquaculture mode of indoor batch production, improves the oxygen solubility in aeration, simple structure, convenience safe in utilization, economic nature is good.

2. The utility model discloses a device such as unpowered dissolved oxygen booster, aquatic crustacean exuviation and solid-state residue separator increases the water soluble oxygen volume, promotes quality of water, reduces the disease and takes place, can accomplish not have the emission, and is pollution-free, no medicine, and no antibiotic forms the characteristics of green safety, ecological environmental protection of product.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only used for explaining the concept of the present invention.

FIG. 1 is a schematic structural view of a cultivation tank of the present invention;

FIG. 2 is a schematic structural view of the oxygen-dissolved supercharger arranged in the inner tube of the present invention;

fig. 3 is a schematic structural view of the utility model of the dissolved oxygen supercharger applied to the double-layer drain pipe in the culture tank.

Summary of reference numerals:

1. culture tank 2, water outlet 3 and outer pipe

4. Inner pipe 5, water inlet 6 and fluid director

7. Air inlet pipe 8, air inlet pipe 9 and first guide plate

10. Deluge plate 11, second guide plate

Detailed Description

Hereinafter, an embodiment of an unpowered dissolved oxygen supercharging device for an aquaculture system of the present invention will be described with reference to the accompanying drawings.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include any obvious replacement or modification of the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It is noted that, in order to facilitate a clear presentation of the structure of the parts of the embodiments of the invention, the drawings are not necessarily drawn to the same scale. The same or similar reference numerals are used to denote the same or similar parts.

As shown in figures 1 and 3, the utility model provides an unpowered dissolved oxygen supercharging device for an aquatic culture system, which is used for being placed in a water outlet 2 of a culture tank 1 of aquatic crustaceans and comprises a double-layer drain pipe and a dissolved oxygen supercharger.

The double-layer drain pipe is suitable for the water outlets 2 of the culture tanks 1 which are arranged in an upper layer and a lower layer. The double-layer drain pipe comprises an outer pipe 3 and an inner pipe 4, the inner pipe 4 comprises an upper pipeline and a lower pipeline, the upper pipeline is movably connected with the lower pipeline, a plurality of water inlet holes 5 are formed in the bottom of the outer side of the outer pipe 3, the height of the upper edge of the inner pipe 4 is lower than that of the upper edge of the outer pipe 3, the inner pipe 4 is used for controlling the height of the water level of the culture tank 1, and the size of the upper pipeline is the same as that of the lower pipeline; the water flows in from the water inlet hole 5, and gushes to the upper edge opening of the inner pipe 4 along the inner pipe 4, then flows over the upper edge opening along the same trend, and flows downwards to the lower layer cultivation tank 1 through the inner part of the inner pipe 4.

The water outlet 2 can be provided with a thread buckle or a tooth mouth joint, and the double-layer water discharge pipe is fixed at the water outlet 2 in a rotating and screwing mode. The water outlet 2 in the upper layer cultivation groove 1 is a water inlet of the lower layer cultivation groove 1, and the water outlets 2 in the cultivation grooves 1 of the upper layer and the lower layer which are adjacent are arranged on diagonal positions and used for increasing water flow and improving water-soluble oxygen amount.

The double-layer drain pipe is a set of tubular devices arranged at the position of a water outlet 2 in each layer of the culture tank 1, and is designed in an up-and-down combined mode, the up-and-down combined mode refers to that an upper section pipeline A and a lower section pipeline B are connected through threads or inner and outer tooth connectors, and the upper section pipeline A and the lower section pipeline B can be connected into a complete inner pipe 4N after connection; the double layer means that an inner pipe 4N and an outer pipe 3W are formed by combining an upper pipeline A and a lower pipeline B.

The diameters of the upper pipeline A and the lower pipeline B are about 2.5 inches, and the upper pipeline A is used for limiting the height of the aquaculture water body and is about 20cm long; the length of the lower pipeline B is determined according to the distance between the culture tanks 1, but the bottom end of the lower pipeline B is about 2cm away from the water surface of the lower culture tank 1; the diameter of the outer pipe 3W is about 3 inches, the length of the outer pipe is about 24cm, the outer pipe is sleeved outside the inner pipe 4N, a plurality of water inlet holes 5 are engraved on the pipe wall, the water flow speed is accelerated, greater power is formed, the water flows up to the upper edge of the inner pipe 4 along the inner pipe 4, then flows over the upper edge, and flows downwards to the lower layer cultivation tank 1 through the inside of the inner pipe 4; the outer pipe W has the function that water forms more kinetic energy when flowing, has larger impact force when flowing out of the lower pipeline B and reaching the water surface of the lower culture tank 1, generates water bloom with larger area, and creates more oxygen by utilizing the physical principle.

It should be noted that the bottom of the upper pipeline of the outer pipe 3 and the inner pipe 4 may be integrally arranged; or the outer pipe 3 and the upper pipeline of the inner pipe 4 are independently arranged, the outer pipe 3 is sleeved outside the inner pipe 4 during installation, and the inner pipe 4 is fixed in the water outlet 2 in a threaded connection or a tooth mouth joint connection mode.

As shown in fig. 2 and 3, the dissolved oxygen pressurizer is used for being placed inside the inner pipe 4 of the double-layer drainage pipe to increase the dissolved oxygen of the water body. The dissolved oxygen supercharger is designed to be of a conical structure in appearance and comprises a fluid director 6, an air inlet pipe 7 and a first flow guide plate 9, wherein the fluid director 6 is arranged at the top, and the fluid director 6 is designed to be disc-shaped; the air inlet pipe 7 is fixedly connected below the fluid director 6, an air inlet pipe 8 is arranged in the middle of the air inlet pipe 7, and the air inlet pipe 8 is communicated with external air; the first guide plates 9 are symmetrically arranged around the air inlet pipe 7 and used for guiding water flow to flow downwards to the lower-layer culture tank 1 along the inner wall of the inner pipe 4. The first baffle 9 is designed as a vane type baffle, and specifically, 4 or 5 baffles can be designed in equal quantity, and other quantities can be designed, and are not limited to 4 or 5 baffles. The 4 or 5 vane type guide plates are symmetrically arranged around the air inlet pipe 7.

In order to be able to better guide the water flow, the flow guide 6 is arranged with an angle of 30 degrees to the horizontal.

As shown in fig. 2, a second guide plate 11 is disposed on the inner wall of the inner tube 4, and the second guide plate 11 is disposed at the same height position as the lower port of the air inlet tube 8, so that water flow is fully merged with air at the bottom end of the air inlet tube 7. And the inner wall of the inner pipe 4 is also provided with a plurality of rain-sprinkling plates 10, the rain-sprinkling plates 10 are fixedly arranged in an up-down layered manner, and the rain-sprinkling plates 10 are arranged into a net structure. Preferably, the shower plate 10 may be designed with 5 layers or 4 or 6 layers, and the specific number is not limited.

Preferably, the second baffle 11 is configured as a vane-type baffle, which better guides the water flow.

When water flow enters the double-layer drain pipe under the pushing action, a narrow gap is formed between the top of the dissolved oxygen supercharger and the double-layer drain pipe, so that the water flow is compressed and limited, and when the water flow passes through the dissolved oxygen supercharger, a large flow velocity is formed, the water flow flows down along the first guide plate 9, surrounding air is driven to rapidly sink through the air inlet pipe 8, and the water flow is fully fused with the air at the bottom end of the air inlet pipe 7 under the flow guide action of the second guide plate 11; meanwhile, the multi-layer net-shaped rain-sprinkling plate 10 has an aeration effect, so that water flow passing through is converted into fine water drops as much as possible, and the water drops are further contacted and fused with air to generate more oxygen and improve the oxygen content of water solution.

This dissolved oxygen booster need not external power device and just can increase the water velocity of flow to increase the area of contact and the time of water and air through the physical mode, thereby increase water dissolved oxygen volume, need not mechanical device, utilize the oxygen in the high-efficient dissolved compressed air of circulating flow's water, the oxygen suppliment when supplying water for aquaculture, simple structure, low cost. Meanwhile, the oxygen-dissolved supercharger can reduce the acoustic booming sound generated in water flow, so that the noise problem in a factory can be relieved.

The installation mode of the unpowered dissolved oxygen supercharger is that the unpowered dissolved oxygen supercharger is arranged inside the inner pipe 4 of the double-layer drain pipe of each type of cultivation tank 1 and is fixed at the position of the water inlet at the upper end of the double-layer drain pipe.

The application range of the unpowered dissolved oxygen supercharger is as follows: the oxygen-dissolved pressurizer can be additionally arranged inside the double-layer drain pipe of the recirculating aquaculture system, and the oxygen-dissolved amount in the recirculating water can be additionally increased by additionally arranging the oxygen-dissolved pressurizer. The system of the utility model can meet the requirement of the amount of water-soluble oxygen in the culture process without a power device; for a common high-level pond culture mode, the dissolved oxygen can be further increased by using the device, and the effects of reducing the number of the aerators and further reducing the cost are achieved.

The above description is directed to an embodiment of the present invention of an unpowered dissolved oxygen supercharging device for an aquaculture system. The specific features of an unpowered dissolved oxygen pressurizer for an aquaculture system of the present invention, such as shape, size and location, can be specifically designed based on the function of the above disclosed features, and such designs can be achieved by those skilled in the art. Moreover, the technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the present invention to achieve the purpose of the present invention.

Claims

1. An unpowered dissolved oxygen supercharging device for an aquatic culture system is characterized in that the unpowered dissolved oxygen supercharging device is placed in a water outlet of a culture tank for aquatic crustaceans and comprises a double-layer water discharge pipe and an dissolved oxygen supercharger,

2. The unpowered dissolved oxygen supercharging device for an aquaculture system of claim 1, wherein the inner wall of the inner pipe is provided with a second flow guiding plate, and the second flow guiding plate is arranged at the same height position as the lower port of the air inlet pipe, so that the water flow is fully merged with the air at the bottom end of the air inlet pipe.

3. The unpowered dissolved oxygen supercharging device for an aquatic culture system of claim 2, wherein the inner wall of the inner pipe is further provided with a plurality of shower plates, and the shower plates are fixedly arranged in an upper-lower layered manner.

4. The unpowered dissolved oxygen pressurizer for an aquaculture system of claim 3 wherein the shower plate is provided as a mesh structure.

5. The unpowered dissolved oxygen pressurizer for an aquaculture system of claim 1 wherein the first baffle is a vane type baffle.

6. The unpowered dissolved oxygen pressurizer for an aquaculture system of claim 5, wherein the number of the vane type baffles is four, and four vane type baffles are symmetrically arranged around the air inlet pipe.

7. The unpowered dissolved oxygen pressurizer for an aquaculture system of claim 1 wherein the dissolved oxygen pressurizer is externally designed as a conical structure.

8. The unpowered dissolved oxygen boosting device for an aquaculture system of claim 1 wherein said flow director is angled at 30 degrees from horizontal.

9. The unpowered dissolved oxygen pressurizer for an aquaculture system of claim 2 wherein the second baffle is configured as a vane-type baffle.

10. The unpowered dissolved oxygen pressurizer for an aquaculture system of claim 1, wherein the upper segment of the pipeline is connected with the lower segment of the pipeline through a threaded connection or a threaded joint.