CN202043538U - Sewage discharge structure at bottom of high-density aquaculture pond - Google Patents

Abstract

The utility model discloses a sewage discharge structure at the bottom of a high-density breeding pond, which comprises a sewage discharge tank laid on the bottom of the cultivation pond and a plurality of sewage collection pipes connected with the sewage discharge tank. The sewage discharge collection pipes are evenly distributed with sewage discharge holes. The sewage discharge tank is cylindrical, and the part where the sewage collection pipe communicates with the sewage discharge tank is tangent to the cylinder wall of the sewage discharge tank, and all the sewage collection pipes are tangent to the cylinder wall of the sewage discharge tank. Consistent and radial arrangement. Through the implementation of this structure, excessive bait, animal feces, biological remains and other granular or solid pollutants at the bottom of the shrimp pond can be efficiently discharged without leaving any dead spots for sewage discharge.

Description

A sewage discharge structure at the bottom of a high-density breeding pond

technical field

The utility model relates to a sewage discharge structure of a culture pond, in particular to a sewage discharge structure at the bottom of a high-density culture pond. the

Background technique

With the continuous expansion of the scale of shrimp farming and the increasing degree of intensification, the pollution of the farming itself has become an important factor of environmental pollution. The deterioration of the breeding environment often becomes the cause of shrimp disease, and to a certain extent becomes the decisive factor for the success of farming production. Based on this, the sewage discharge technology of shrimp ponds is always in the process of continuous improvement and improvement along with the research of aquaculture production technology. The technology related to the pond sewage discharge device and structure includes the bottom of the pot bottom, the central sewage discharge pipe, the sewage collection pipe, the fixed sewage discharge pipe, the drainage and sewage discharge device of the industrialized circulating aquaculture system, etc. In the actual production process, the sewage pipes exposed at the bottom of the pond affect the swimming of shrimp at the bottom of the pond. With the increase of breeding density, there will be a tendency of dirt accumulation at the bottom of the pond in the middle and late stages of breeding production, especially in some dead spots of sewage discharge. The accumulation and deterioration of the dirt in the pool seriously pollute the aquaculture water body, which further affects the survival and production success of the aquaculture. the

Utility model content

The purpose of this utility model is to provide a sewage discharge structure at the bottom of a high-density breeding pond. Through the implementation of this structure, the excessive bait, animal feces, biological remains and other granular or solid pollutants at the bottom of the shrimp pond can be efficiently discharged without leaving sewage dead end. the

The purpose of this utility model can be achieved through the following technical measures: a sewage discharge structure at the bottom of a high-density breeding pond, including a sewage discharge tank laid on the bottom of the cultivation pond and a number of sewage collection pipes connected with the sewage discharge tank, the sewage collection Sewage holes are evenly distributed on the pipe, and the sewage discharge tank is cylindrical. The tangential direction of the cylinder wall of the sewage tank is consistent and arranged radially. the

The tangential direction of the sewage collection pipe is consistent with the rotational flow direction of the water body in the culture pond. the

The sewage tank is arranged at the center of the bottom of the culture pond. the

The bottom of the sewage discharge tank is an arc surface structure. the

The bottom of the breeding pond is provided with a sewage ditch, the bottom surface of the sewage ditch is an arc surface, and is adapted to the outer contour of the sewage collection pipe, and the sewage collection pipe is embedded in the sewage drainage ditch and connected to the sewage discharge close contact with the bottom of the ditch. the

The sewage discharge tank has a cover plate, and the top surface sewage discharge holes are opened on the cover plate, and the top surface sewage discharge holes are evenly distributed along the spiral radiation centered on the center point of the cover plate. the

The bottom surface of the cover plate is provided with a cylindrical fastening edge, the fastening edge is fastened to the upper port of the sewage discharge tank, and side sewage discharge holes are distributed on the fastening edge. the

The distribution density of the top sewage discharge holes and the side sewage discharge holes on the sewage discharge tank cover plate is smaller than the distribution density of the sewage discharge holes on the sewage collection pipe. the

The bottom of the culture pond is also provided with a sewage main pipe, the sewage main pipe is connected to the outside of the culture pond, and the bottom of the sewage discharge tank is provided with a sewage outlet connected with the sewage main pipe. the

Compared with the prior art, the utility model has the following advantages:

1. This sewage discharge structure can improve the sewage discharge efficiency of high-density cultured shrimp ponds, reduce the pressure of sewage accumulation at the bottom of the pond in the middle and late stages of aquaculture production, and avoid the dead angle of sewage discharge in sewage ditch, sewage tank and other positions during the implementation of other sewage discharge structures. Among them, most of the sewage is collected into the sewage discharge tank through the sewage collection pipe, and the rest of the sewage is concentrated in the center of the culture pond. The side drain hole enters the drain tank and is finally discharged, so the dirt can be completely removed. the

2. In this sewage structure, the sewage tank cover plate and sewage collection pipe can be disassembled after a breeding cycle for separate and complete cleaning and disinfection procedures. The sewage tank and sewage ditch can also be thoroughly cleaned and disinfected, improving cleaning, Disinfection effect, sewage tank cover, sewage collection pipe can be reused in the next production cycle. the

3. The sewage discharge structure is simple, easy to install, use and operate, and convenient to implement. It can be applied to water treatment systems such as pond prawn circulating aquaculture, industrial circulating water fish farming and nursery, aquaculture raw water treatment, aquarium circulating water treatment, seafood wholesale market temporary breeding system and scientific experiments, etc., and is applicable to a wide range of occasions. the

Description of drawings

Fig. 1 is the top view of the blowdown structure at the bottom of the utility model high-density cultivation pond;

Fig. 2 is a side sectional view of the blowdown tank in the blowdown structure shown in Fig. 1;

Fig. 3 is a sectional view of the sewage collection pipe and the sewage ditch in the sewage structure shown in Fig. 1;

Fig. 4 is a top view of the cover plate of the sewage discharge tank in the sewage discharge structure shown in Fig. 1 . the

Detailed ways

Fig. 1 to Fig. 4 have shown a specific embodiment of the sewage discharge structure at the bottom of the high-density culture pond of the present utility model, comprise the blowdown tank 1 that lays at the bottom of the culture pond and some blowdown collection pipes 2 that are communicated with the blowdown tank 1, blowdown collection Sewage holes 20 are evenly distributed on the pipe, and the diameter of the sewage holes 20 is less than 1 cm. The sewage enters the sewage collection pipe 2 through the sewage holes 20 . Sewage collection pipe 2 can adopt VC pipe, and the end is closed. the

The bottom of the breeding pond is also provided with a sewage ditch 3, the depth of the sewage ditch is 9-11 cm, the bottom surface of the sewage ditch 3 is an arc surface, and it is adapted to the outer contour of the sewage collection pipe 2, and the sewage collection pipe 2 is embedded in the sewage drainage ditch 3 and is connected with the sewage collection pipe 3. The bottom surfaces of the sewage ditch 3 are in close contact. Thereby preventing dirt from hiding between the sewage ditch 3 and the sewage collection pipe 2 . The length of each sewage ditch 3 and the sewage collection pipe 2 is set according to the needs of the pond shape and area, and the far end can be provided with a branch sewage ditch and a branch sewage collection pipe if necessary. the

As shown in Figure 2, the sewage tank 1 is cylindrical, with a diameter of 50-80 cm and a depth of 30-50 cm. The specific diameter and depth are set according to the actual needs of the pond area, and the bottom is an arc-shaped structure. The sewage collection pipe 2 inlet 13 is provided on the cylinder wall of the sewage discharge tank 1, and the sewage collection pipe 2 is tangent to the cylinder wall of the sewage discharge tank 1 at the position of the entrance 13, as shown in Figure 1, all the sewage collection pipes 2 and sewage discharge The tangential direction of the cylinder wall of the tank 1 is consistent and arranged radially. Therefore, the sewage collected through the sewage collection pipe 2 enters the sewage tank 1 to form a swirling flow, which is beneficial to the smooth discharge of sewage and dirt in the sewage tank. the

A cover plate 11 is arranged above the sewage tank 1, and the cover plate 11 is a circular plate whose diameter is 8-10 cm larger than the sewage tank diameter, and the edge of the cover plate 11 forms the structure of the eaves. With the center of the circle as the center on the cover plate 12, sewage discharge holes 110 with a diameter of less than 1 cm are distributed on the top surface at equal intervals in a spiral radial position. The bottom surface of the cover plate 11 is provided with a cylindrical buckle edge 12, the buckle edge 12 is buckled with the upper port of the sewage tank 1, and the surface of the cover plate 11 is 8 to 10 cm higher than the upper port of the sewage tank 1, and the buckle edge 12 is also distributed with side drain holes 120 with a diameter less than 1 cm, and the distribution density of the side drain holes 120 is 1/2 to 1/3 of the distribution density of the drain holes 20 on the drain collecting pipe 2 . the

The bottom of the culture pond is also provided with a sewage main pipe, and the sewage main pipe is connected to the outside of the culture pond, and the bottom of the sewage tank is provided with a sewage outlet 14 connected with the sewage main pipe. The sum of the cross-sectional areas of the sewage collection pipes 2 is less than or equal to the cross-sectional area of the sewage main pipe. the

The construction of the sewage structure at the bottom of the high-density aquaculture pond includes two parts, one is the sewage ditch and the sewage tank at the bottom of the pond, which can be constructed with cement; the other is the structure of the sewage collection pipe and the sewage tank cover, which can use PVC pipes and PP sheet welding or bonding manufacturing. As shown in Figure 1, the bottom of the sewage ditch and the sewage tank must have a circular arc-shaped structure, and the contact surface between the sewage ditch and the sewage collection pipe has no gap to accommodate the dirt. When the sewage is discharged, the water in the sewage tank is in a counterclockwise swirling state, and there is no residue or accumulation of dirt in the sewage tank. In other embodiments, according to the actual size and shape of the culture pond area, the specific lengths of each sewage ditch and sewage collection pipe are set according to the shape and area of the pond as required, and branch sewage ditch and sewage collection pipe can be set at the far end if necessary. the

The cover plate of the drain tank is fastened with the drain tank. During the aquaculture production process, the water body in the aquaculture pond rotates counterclockwise under the action of the aerator. Since the tangential direction between the sewage collection pipe and the wall of the sewage tank is consistent with the direction of the water body rotation and flow, the rotating water body will be excessive. Granular or solid pollutants such as bait, animal feces, and biological remains are gradually precipitated. During this process, most of the sewage is collected into the sewage tank through the sewage collection pipe, and the rest of the sewage is concentrated in the center of the breeding pond. The sewage tank is set here. The dirt enters the sewage discharge tank through the top sewage discharge hole on the sewage discharge tank cover plate or the side sewage discharge hole on the fastening edge, and is finally discharged. the

In the sewage discharge structure of the utility model, the drainage and sewage pipes can be manually operated to discharge sewage on demand. It can also be connected with the water treatment system, and the aquaculture sewage is purified and treated by the water treatment equipment and then recycled. the

The implementation of the present utility model is not limited thereto. On the premise of the above-mentioned basic technical idea of the utility model, other modifications, replacements or changes made to the content of the utility model in accordance with common technical knowledge and conventional means in this field shall be accepted. Fall within the protection scope of the utility model rights. the

Claims (9)

1. high-density breeding pond bottom pollution discharge structure, comprise and be layed in the blowdown collecting pipe that the dirt discharge groove of culturing at the bottom of the pond and some and described dirt discharge groove are communicated with, be evenly equipped with mudhole on the described blowdown collecting pipe, it is characterized in that: described dirt discharge groove is the barrel mast shape, the position that described blowdown collecting pipe is connected with described dirt discharge groove and the barrel of described dirt discharge groove are tangent, and the tangent direction of described whole blowdown collecting pipe and the barrel of described dirt discharge groove is consistent and be radial arrangement.

2. high-density breeding pond bottom pollution discharge structure according to claim 1 is characterized in that: the direction tangential of described blowdown collecting pipe is consistent with water body rotational flow direction in the described breed pond.

3. high-density breeding pond bottom pollution discharge structure according to claim 2 is characterized in that: described dirt discharge groove is located at bottom center position, described breed pond.

4. according to claim 1 or 2 or 3 described high-density breeding pond bottom pollution discharge structures, it is characterized in that: described dirt discharge groove bottom is globoidal structure.

5. high-density breeding pond bottom pollution discharge structure according to claim 4, it is characterized in that: described breed is provided with the blowdown ditch at the bottom of the pond, the bottom surface of described blowdown ditch is a cambered surface, and adaptive with the outline of described blowdown collecting pipe, described blowdown collecting pipe is embedded in the described blowdown ditch and with described blowdown ditch bottom surface and closely contacts.

6. high-density breeding pond bottom pollution discharge structure according to claim 5, it is characterized in that: described dirt discharge groove has cover plate, offer the end face mudhole on the described cover plate, described end face mudhole evenly distributes along the spiral radioactive ray that are the center with described cover plate central point.

7. high-density breeding pond bottom pollution discharge structure according to claim 6 is characterized in that: the bottom surface of described cover plate is provided with columnar snapping limit, and described snapping limit and described dirt discharge groove upper port are interlockingly connected, and described snapping is distributed with the side mudhole on the limit.

8. high-density breeding pond bottom pollution discharge structure according to claim 7 is characterized in that: the end face mudhole on the described dirt discharge groove cover plate and the distribution density of side mudhole are all less than the distribution density of the mudhole on the described blowdown collecting pipe.

9. high-density breeding pond bottom pollution discharge structure according to claim 8, it is characterized in that: described breed also is provided with blowdown main at the bottom of the pond, described blowdown main is communicated to outside the described breed pond, and described dirt discharge groove bottom is provided with the sewage draining exit that links to each other with blowdown main.

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