CN202551895U - Water intake device for artificial breeding of sea crabs - Google Patents

Abstract

The utility model relates to a water inlet device for artificial seedling cultivation of seawater crabs, which comprises a water storage tank, a water pump, an intermediate water pipe and a breeding pond. A water pump is installed at the bottom of the water storage tank, and the water outlet of the water pump is connected to a water pipe. One end is located at the upper opening of the breeding pond and is equipped with a valve. The other end of the water pipe is connected to several parallel water spray pipes at the upper opening of the breeding pond. The water spray pipes are connected in parallel, and the water spray pipes are evenly distributed. Above the culture pond, the length of the water spray pipe is greater than that of the culture pond, and water outlets are evenly distributed on the pipe wall of the water spray pipe, and the air-dispersing stones are installed in the culture pond. The utility model has low cost and is easy to be popularized and used in crab artificial seedling production units; it has a spray function, and can spray fresh seawater from the pipe hole to the surface of the pool water by using a water pump and a water spray pipe, and the water body can be increased by mixing air and water. The function of oxygen; use the action of water flow to promote the dispersal of larvae, avoiding the phenomenon of larvae clustering and group hypoxia.

Description

A water inlet device for artificial breeding of seawater crabs

technical field

The utility model belongs to the technical field of aquaculture equipment manufacturing, in particular to a water inlet device for artificial breeding of seawater crabs.

Background technique

Marine economic crabs are rich in nutrition, large in size, fast in growth and strong in adaptability. They are aquaculture species with high commodity value in coastal areas of my country. The quality, output and stable supply of artificial crab seedlings play an important role in promoting the large-scale cultivation of crabs, promoting the structural adjustment of the aquaculture industry and increasing the income of fishermen. Therefore, artificial breeding of sea crabs is an important part of economic crab breeding.

There are many factors affecting the artificial breeding of crabs, such as water temperature, water quality, bait and daily operation and management. In the operation and management of crab artificial breeding, water exchange is an essential measure. The supplement of fresh seawater can not only increase the oxygen in the water, but also improve the water quality. In the process of changing water, inappropriate water intake operation will lead to higher larval mortality, which directly affects the quality and yield of crab species. Therefore, the water intake operation of artificial crab seedlings is an important factor that determines the success or failure of seedling production. .

During the water exchange process of crab artificial seedlings, as the water level in the crab seedling pond decreases, the density of larvae in the pond increases and larvae crowding occurs. Because crab larvae have the natural physiological habit of clustering, long-term crowding makes the larvae tend to Because of the gathering and grouping, the phenomenon of group hypoxia will eventually occur and cause the larvae to sink to the bottom and die. At present, the daily operation method is to put a filter bag on the water inlet pipe on the wall of the pond after changing the water in the cultivation pond, and open the water valve to directly enter the cultivation pond. The disadvantage of this operation method is that the impact force of the water flow is still Larger, it is easy to cause violent water flow in the water inlet area of the cultivation pond, which not only directly damages the larvae, but also stirs the bottom of the pond and destroys the substrate, causing the bottom pollution deposited on the bottom to spread, resulting in a sharp deterioration of the cultivation water quality; The water inlet point is limited to the bottom of the water inlet pipe, and the water inlet time is also long. It is difficult to disperse the crowded larvae evenly in a short period of time. In addition, this method of operation often affects the physique of the larvae, making the larvae susceptible to disease, and ultimately affects the emergence rate of the larvae and the success rate of seedling cultivation. Therefore, it is necessary to design a water inlet device for crab artificial seedlings that has strong applicability, reasonable structure, uniform water inlet to the whole pond, and scattered distribution of larvae.

Contents of the invention

The technical problem to be solved by the utility model is to provide a water inlet device for artificial seedling cultivation of seawater crabs, so that the whole pool can be evenly watered, and the larvae can be dispersed and distributed.

The technical scheme adopted by the utility model to solve the technical problem is: provide a water inlet device for seawater crab artificial seedlings, including a water storage tank, a water pump, an intermediate water pipe and a breeding tank, and a water pump is installed at the bottom of the storage tank. The water pump outlet is connected to a water pipe, and the other end of the water pipe is located at the opening above the culture pond and is equipped with a valve. In a parallel relationship, the water spray pipes are evenly distributed above the culture pond, the length of the water spray pipes is greater than the length of the culture pond, the pipe walls of the water spray pipes are evenly distributed with water outlets, and the culture pond is equipped with a diffuser stone.

The water spray pipe is made of PVC material.

The water outlet holes on the water spray pipe have a pitch of 50mm and a diameter of 4mm.

The water spray pipe is connected with the valve in the way of flange bolt connection.

The water pump is a submersible pump.

Beneficial effect

The utility model has the advantages of simple structure, convenient manufacture and low cost, and is easy to be popularized and used in crab artificial nursery production units. Water mixing can increase the oxygen of the water body; it can make the whole breeding pool evenly watered, and by controlling the water valve of the water inlet pipe, the water flow can be adjusted, and the larvae can be dispersed and distributed by the effect of the water flow, so as to avoid the phenomenon of larvae clustering and group hypoxia.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a schematic structural view of the water spray pipe 5 .

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

As shown in Fig. 1 and Fig. 2, a kind of water intake device for seawater crabs artificial seedlings comprises a reservoir 1, a water pump 2, an intermediate water pipe 4 and a culture pond 6, and a water pump 2 is installed at the bottom of the reservoir 1, so that The water outlet of the water pump 2 is connected to the water pipe 4. The other end of the water pipe 4 is located at the opening above the culture pond 6 and is equipped with a valve 3. The other end of the water pipe 4 is connected to some parallel water spray pipes 5 at the opening above the culture pond 6. , the water spray pipes 5 are connected in parallel, the water spray pipes 5 are evenly distributed on the top of the culture pond, the length of the water spray pipes 5 is greater than the length of the culture pond 6, and the 5 pipe walls of the water spray pipes are all A water outlet 8 is arranged, and an air-dispersing stone 7 is installed in the culture pond 6 .

Described spray pipe 5 is made of PVC material.

The water outlets on the water spray pipe 5 have a hole spacing of 50mm and a diameter of 4mm.

The water spray pipe 5 is connected with the valve 3 in a flange bolt connection mode.

The water pump 2 is a submersible pump.

In actual use, first start the water pump 2 in the reservoir 1, pump fresh seawater into the water pipe 4, and control the valve 3 to make the clean seawater generate pressure in the water pipe 4. As the pressure increases, the seawater passes through the water spray hole 8 forms a high-speed jet and sprays it to the water surface of the culture pond 6, and at the same time starts the air-dispersing stone 7 arranged in the nursery pond to inflate and increase oxygen, and produces a certain flow state, so that seawater is quickly dispersed into 6 places in the culture pond, and the seawater jet and Inflation can disperse the crowded larvae in a short period of time, so that the larvae can be evenly distributed in the entire breeding pond 6. After the water intake is completed, the water spray pipe 5 can be disassembled from the interface of the valve 4, and after being rinsed with water, it can be used continuously. Other breeding ponds are fed or reserved for subsequent use.

Claims (5)

1. A water intake device for seawater crab artificial seedlings, comprising a reservoir (1), a water pump (2), an intermediate water pipe (4) and a culture pond (6), it is characterized in that the reservoir (1) A water pump (2) is installed at the bottom, and the outlet of the water pump (2) is connected to a water pipe (4). (4) the other end connects some parallel water spray pipes (5) at the opening above the culture pond (6), the water spray pipes (5) are connected in parallel, and the water spray pipes (5) are evenly distributed Above the culture pond, the length of the water spray pipe (5) is greater than the length of the culture pond (6), and the pipe wall of the water spray pipe (5) is evenly distributed with water outlets (8), and the culture pond (6) Air-dispersing stones (7) are installed. 2. A kind of water inlet device for seawater crab artificial seedling cultivation according to claim 1, characterized in that, the water spray pipe (5) is made of PVC material. 3. A kind of water inlet device for seawater crab artificial seedling cultivation according to claim 1, characterized in that, the water outlet (8) hole spacing on the said water spray pipe (5) is 50mm in pitch and 4mm in diameter. 4. The water inlet device for artificial seedling cultivation of seawater crabs according to claim 1, characterized in that, the water spray pipe (5) is connected with the valve (3) in a flange bolt connection mode. 5. The water inlet device for artificial seedling cultivation of seawater crabs according to claim 1, characterized in that, the water pump (2) is a submersible pump.

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