CN217025393U - Immersion type aquaculture pond water purification device - Google Patents

Abstract

The present application provides an immersion-type aquaculture pond water purification device, comprising: a sealed immersion-type box structure, the immersion-type box structure is immersed in the culture pond water body, and the interior of the immersion-type box structure is a water purification treatment space, In the water purification treatment space, mesh wire bags are stacked layer by layer along its height direction, and the mesh wire bags are filled with water purification substances; the bottom of the immersed box structure is connected with a sewage water inlet device and a water purification device. A discharge device, one end of the sewage inlet device extends into the water body of the cultivating pond, and the other end is communicated with the internal water purification treatment space of the submerged box structure; the drain end of the water purification device is connected to the submerged type The inner water purification treatment space of the box structure is communicated. The device of the present application is immersed in the water body of the aquaculture pond, and there is no need to configure an additional water quality treatment tank, thereby reducing the waste of additional supporting space for aquaculture and the site, the sewage purification effect is good, and the manual labor is reduced.

Description

An immersed aquaculture pond water purification device

technical field

The present application relates to the technical field of water purification devices, and in particular, to an immersed culture pond water purification device.

Background technique

At present, aquaculture ponds generally use sewage to be directly discharged or set up a sewage treatment sedimentation tank near the aquaculture pond. The aquaculture sewage is treated by a short-term treatment and sedimentation and then discharged to the outside for sewage treatment. At the same time, groundwater or other water sources are extracted to supplement the pond. If the water quality needs to be purified and reused, one or more small ponds are usually provided near the pond for sedimentation, treatment, and filtration of sewage discharged from aquaculture.

The existing water purification treatment methods for aquaculture ponds all require the establishment of one or more small sedimentation treatment filter tanks near the aquaculture ponds to purify and treat aquaculture sewage (including external discharge or recycling). These methods all require more breeding space or additional sites. In addition, the existing water quality treatment methods mainly use natural precipitation, physical filtration, biodegradation and purification, etc., the water purification effect is slow, and a large amount of water pollutants and degradation products settle at the bottom of the pond, which requires manual pond cleaning and other operations in the later stage, and the labor cost is relatively high. high.

Therefore, how to provide a water purification device for aquaculture ponds that does not need to configure additional water quality treatment ponds, reduces the waste of additional aquaculture supporting space and site, has good water purification effect and reduces manual labor is a technical problem that still needs to be solved.

Utility model content

The purpose of the present application is to provide an immersion-type aquaculture pond water purification device, which is immersed in the water body of the aquaculture pond, without the need to configure an additional water quality treatment tank, reducing the waste of additional aquaculture supporting space and site, and the sewage purification effect is good. human labor.

In order to achieve the above purpose, the present application provides a water purification device for an immersed culture pond, comprising: a sealed immersion box structure, the immersion box structure is immersed into the water body of the culture pond, and the interior of the immersion box structure is: A water purification treatment space, in which mesh wire bags are stacked layer by layer along its height direction, and the mesh wire bags are filled with water purification substances; the bottom of the immersed box structure is connected with a sewage inlet. A water device and a water purification discharge device, one end of the sewage water inlet device extends into the water body of the cultivating pond, and the other end is communicated with the internal water purification treatment space of the submerged box structure; the drainage end of the water purification discharge device It is communicated with the internal water purification treatment space of the submerged box structure.

As above, wherein, the sewage water inlet of the sewage water inlet device is located in the head space of the water purification treatment space, and the sewage discharged from the sewage water inlet enters the mesh wire bag of the upper layer in turn into the mesh wire bag of the lower layer. After the sewage is purified by physical filtration, adsorption purification or biodegradation of water purification substances by using a variety of different filter materials, the treated purified water is collected in the bottom space of the water purification treatment space. The bottom space of the space is divided by the space bracket at the bottom of the submerged box structure.

As above, wherein, the sewage water inlet device includes a sewage water inlet pipe and a water inlet extension pipe, the sewage water inlet pipe is communicated with the water inlet extension pipe; the sewage water inlet pipe is arranged at the bottom of the submerged box structure outside, and extend outward along the first opening at the bottom of the submerged box structure; the water inlet extension pipe is arranged inside the submerged box structure and extends along the bottom of the submerged box structure. The first opening at the bottom extends upward to the top space of the water purification treatment space.

As above, wherein, the water inlet extension pipe extends upward along the first opening of the bottom of the submerged box structure, and the height of the water outlet at the upper end of the water inlet extension pipe is located below the water surface, at 20-30cm , the top of the submerged box structure is higher than the water surface of the culture pond.

As above, wherein, the end of the sewage water inlet pipe extending out of the immersed box structure is connected with a floating body; the water inlet of the sewage water inlet pipe is equipped with a suction head with a coarse filter to avoid large debris into the pipeline.

As above, wherein the highest surface of the mesh wire bag stack is located below the top of the submerged box structure, the highest point of the mesh wire bag stack is lower than the water surface of the culture pond where it is located, and the net The distance between the top surface of the bag stack and the water surface of the culture pond is in the range of 30cm-50cm.

As above, wherein, a space bracket is placed at the inner bottom of the immersed box structure, and the mesh wire bag is located above the space bracket.

As above, wherein, the water purification and drainage device includes a drain pipe and a drain pump, the water inlet end of the drain pipe is located at the lower part of the space bracket, and the drain pipe extends from the second opening at the bottom of the submerged box structure out, extending to the shore of the cultivating pond, the drainage pipe is connected to the drainage pump on the pipeline extending from the submerged box structure, and the water outlet of the drainage pipe is connected to the water channel at the edge of the pond, so that the treated net The water flows naturally back to the culture pond along the pond side channel.

As above, wherein, the mesh wire bag contains a variety of different water purification substances, and the water purification substances include physical filtering substances, adsorption purification substances and/or biodegradable water purification substances.

As above, wherein, the sewage water inlet pipe is a hose.

The beneficial effects achieved by this application are as follows:

(1) The present application adopts the immersion box structure made of impermeable material and places it in the culture pond to purify the sewage, so as to avoid the need for additional space and site for the water purification treatment of the culture pond, and save space and site resources.

(2) This application utilizes the pressure generated by the water level difference between the internal water level of the immersed box structure and the water body of the culturing pond (the bottom clean water is continuously drawn by the drainage pump, so that the internal water level of the immersed box structure is always lower than the water level of the external pond At the same time, the stacking height of the filter material in the immersion box structure and the position of the outlet of the sewage pipe in the immersion box structure are always kept a certain distance below the water surface of the pond), which can automatically press the sewage at the bottom of the pond into the immersion box structure. Inside, the sewage is purified step by step from top to bottom, with simple structure and good purification effect.

(3) In this application, various physical filtration, adsorption purification, and biodegradable substances are divided into mesh wire bags, and placed layer by layer in the immersed box structure. The mesh wire bags are convenient for manual installation, replacement and cleaning, etc., and the operation is relatively Convenience and manpower saving.

(4) The application utilizes the drainage pump to continuously extract the purified water treated at the bottom of the immersed box structure, thereby maintaining the water level difference (water pressure) between the inside of the immersed box structure and the external culture pond, thereby continuously removing the sewage at the bottom of the culture pond Press into the immersion box structure for purification treatment to ensure uninterrupted treatment of sewage and improve treatment efficiency.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments described in this application. For those skilled in the art, other drawings can also be obtained according to these drawings.

FIG. 1 is a perspective view of an immersed culture pond water purification device according to an embodiment of the application.

FIG. 2 is a top view of an immersed culture pond water purification device according to an embodiment of the present application.

FIG. 3 is a perspective view of an immersed box structure according to an embodiment of the present application.

Reference numerals: 1-Immersed box structure; 2-Water purification treatment space; 3-Mesh line bag; 4-Sewage water inlet device; 5-Water purification discharge device; 8-water surface; 11-first opening; 12-second opening; 41-sewage water inlet pipe; 42-water inlet extension pipe; 43-sewage water inlet; 51-drainage pipe; 52-drainage pump; 71-line rope.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

As shown in FIG. 1 and FIG. 2 , the present application provides a water purification device for an immersed aquaculture pond, including: a sealed immersion box structure 1, the sealed immersion box structure 1 is made of flexible waterproof material, and has a The characteristics of water permeability, the submerged box structure 1 is immersed in the water body of the aquaculture pond, and the inside of the submerged box structure 1 is a water purification treatment space 2, and the water purification treatment space 2 is layered with mesh line bags 3 along its height direction. , the mesh line bag 3 is filled with water purification substances; the bottom of the submerged box structure 1 is connected with a sewage water inlet device 4 and a water purification discharge device 5, one end of the sewage water inlet device 4 extends into the water body of the culturing pond, and the other end is The internal water purification treatment space 2 of the submerged box structure 1 is communicated with;

As a specific embodiment of the present utility model, one end of the sewage water inlet device 4 extends into the water body of the cultivating pond, and the other end is communicated with the top of the front end of the water purification treatment space 2; the drainage end of the water purification discharge device 5 is connected to the water purification treatment space. 2 The bottom of the rear end is connected.

As shown in FIG. 1 , the sewage inlet 43 of the sewage water inlet device 4 is located in the head space of the water purification treatment space 2 , and the sewage discharged from the sewage inlet 43 enters the lower mesh bag 3 in turn from the upper mesh bag 3 for post-processing. In order to purify the water, the purified water is collected in the bottom space of the water purification treatment space 2, and the purified water is drawn out from the submerged box structure 1 through the purified water discharge device 5 and replenished into the culture pond.

As shown in FIG. 1 , the sewage water inlet device 4 includes a sewage water inlet pipe 41 and a water inlet extension pipe 42, and the sewage water inlet pipe 41 and the water inlet extension pipe 42 communicate with each other; and extend outward along the first opening 11 at the bottom of the immersion box structure 1; the water inlet extension pipe 42 is arranged inside the immersion box structure 1, and the water inlet extension pipe 42 is fixed on the immersion box body by a position fixing device The inner wall of the structure 1 and along the inner wall of the submerged box structure 1 extend upward from the first opening 11 to the head space of the water purification treatment space 2 . The sewage enters the water inlet extension pipe 42 from the sewage water inlet pipe 41, and then flows from the water outlet of the water inlet extension pipe 42 to the top layer of the mesh wire bag 3, and the sewage passes through the multi-layer mesh wire bag 3 for purification.

Preferably, the sewage water inlet pipe 41 and the water inlet extension pipe 42 are connected by a turning elbow at the bottom of the box body; the turning elbow at the bottom of the box body is connected at the first opening 11 , and the turning elbow at the bottom of the box body is connected with the first opening 11 The sealing connection between them prevents the external water of the submerged box structure 1 from entering the water purification treatment space 2 through the connection between the turning elbow at the bottom of the box and the first opening 11 .

As shown in Figures 1-3, the water inlet extension pipe 42 extends upward along the first opening 11 at the bottom of the submerged box structure 1, and the upper water outlet of the water inlet extension pipe 42 is located 20 degrees below the height of the current water surface 8 of the culture pond. -30cm, the top surface of the submerged box structure 1 is higher than the water surface of the culture pond, so as to prevent the surface water of the pond from directly flowing into the box, and at the same time, under the action of the drainage pump, the water level difference between the inside and outside of the submerged box structure is continuously maintained, Therefore, it is ensured that a water level pressure difference is formed between the submerged box structure 1 and the water body of the aquaculture pond, and the water outlet at the upper end of the water inlet extension pipe 42 is always lower than the water surface of the aquaculture pond by a certain distance, so as to ensure that the water in the water body of the aquaculture pond is under the action of siphon. Natural flow into the immersion box structure 1. There is no sewage between the upper water outlet of the water inlet extension pipe 42 and the top surface of the submerged box structure 1. The internal space of the submerged box structure 1 and the water body of the culture pond form a water level pressure difference, and the inner space of the submerged box structure 1 has water The pressure is lower than the water pressure of the water body of the culture pond outside the submerged box structure 1. The water body of the culture pond presses the sewage from the inlet of the sewage inlet pipe 41 into the sewage inlet pipe 41 and the inlet extension pipe 42, and the sewage flows from the inlet extension pipe. The water outlet at the upper end of 42 enters the interior of the submerged box structure 1, and then, after purification by the mesh wire bag 3, purified water is obtained. The clean water discharge device 5 continuously draws out clean water, and always maintains the water level difference between the interior of the submerged box structure 1 and the water body of the culture pond, that is, there is always a pressure in the interior space of the submerged box structure 1 that is lower than that of the submerged box structure 1 The water pressure of the external aquaculture pond water body continuously presses the sewage at the bottom of the aquaculture pond into the submerged box structure 1 for purification treatment.

The present application utilizes a drain pump to continuously extract the treated purified water at the bottom of the submerged box structure, so as to maintain the water level difference (water pressure) between the inside of the submerged box structure and the external culture pond, so as to continuously drain the sewage at the bottom of the culture pond by means of siphon action Press into the immersion box structure for purification treatment to ensure uninterrupted treatment of sewage and improve treatment efficiency.

As a specific embodiment of the present utility model, if the drainage pump fails to extract the purified water treated at the bottom of the submerged box structure in time, the upper water outlet of the water inlet extension pipe 42 is located 20cm-30cm below the height of the current water surface 8 of the culturing pond. , the top surface of the submerged box structure 1 is higher than the water surface of the aquaculture pond, so as to ensure that a water level pressure difference is formed between the submerged box structure 1 and the water body of the aquaculture pond, and the water in the water body of the aquaculture pond can still be pressed under the action of siphon. The immersion box structure is immersed for purification treatment, until the water in the immersion box structure 1 becomes more and more, so that the water level pressure difference cannot be formed between the immersion box structure 1 and the water body of the aquaculture pond, then the sewage cannot enter the immersion The processing is carried out in the box structure 1.

Preferably, the bottom of the submerged box structure 1 is submerged in the bottom of the water of the culture pond, and the top surface of the submerged box structure 1 is higher than the water surface of the culture pond.

As shown in FIGS. 1 and 2 , the end of the sewage water inlet pipe 41 protruding from the outside of the submerged box structure 1 is connected with the floating body 7 through a wire 71 . Preferably, the sewage water inlet pipe 41 is a hose, the hose can be a deformable and bendable pipe, and the hose can be a plastic hose. The floating body 7 is used to conveniently identify the position of the water inlet of the sewage water inlet pipe 41 ; by moving the floating body 7 , the position of the water inlet of the sewage water inlet pipe 41 can be easily moved and operated. Moving the position of the water inlet of the sewage water inlet pipe 41 can extend along the bottom of the pond to all parts of the pond to extract the sewage with the worst quality deposited at the bottom of the aquaculture pond. Preferably, the floating body 7 is a floating ball or a float.

Preferably, the water inlet of the sewage water inlet pipe 41 is equipped with a suction head with a coarse filter screen to prevent large debris from entering the sewage water inlet pipe 41 .

Preferably, the floating body 7 is connected with a migration operation line, one end of the migration operation line is connected with the floating body 7, and the other end is connected with the operation device on the shore of the pond. By controlling the length and position of the migration operation line, the position of the floating body 7 can be moved, Therefore, it is convenient to move the position of the water inlet of the sewage water inlet pipe 41, so as to extend along the bottom of the pond to all parts of the pond to extract the sewage with the worst quality deposited on the bottom of the culture pond. Preferably, the migration operation line includes two lines.

Preferably, the length of the wire rope 71 is adjusted according to actual needs. By adjusting the length of the wire rope 71, the depth of the bottom of the culture pond where the water inlet of the sewage water inlet pipe 41 is located can be adjusted. A gravity block is connected to the water inlet of the sewage water inlet pipe 41, and the gravity block can ensure that the water inlet of the sewage water inlet pipe 41 sinks to the bottom of the water and does not surface. The water inlet of the sewage water inlet pipe 41 is connected to the floating body 7 through the wire rope 71 , the floating body 7 floats on the water surface, and the wire rope 71 pulls the water inlet of the sewage water inlet pipe 41 .

Preferably, the highest surface of the 3 stacked mesh wire bags is located 30cm-50 cm below the height of the current water surface 8 of the culture pond, and the highest surface of the 3 stacked mesh wire bags is located below the top surface of the immersed box structure 1. The highest surface of the stacking of the line bags 3 is lower than the upper water outlet of the water inlet extension pipe 42 . The top surface of the submerged box structure 1 is higher than the current water surface 8 of the culture pond. The size and weight of the mesh wire bag 3 are limited to facilitate manual handling and installation. Preferably, the multi-layer mesh wire bags 3 are fixed together by bindings, and the bindings do not restrict the flow of water. Wherein, each layer of mesh wire bags 3 may include multiple rows or columns of mesh wire bags 3 .

As shown in FIG. 1 , a space bracket 6 is placed at the inner bottom of the immersion box structure 1 , and the mesh wire bag 3 is located above the space bracket 6 . The height range of the spacer 6 is 15-20 cm. The spacer bracket 6 is used to support the multi-layer mesh wire bag 3 to ensure that there is a certain space under the multi-layer mesh wire bag 3 for accommodating purified water.

Specifically, the space bracket 6 is a flat cube structure formed by splicing multiple support plates, so as to be easily supported under the multi-layer mesh wire bag 3, and the top of the space bracket 6 is open to allow the multi-layer mesh wire to pass through. The purified water purified by the bag 3 enters the inner space of the spacer 6 .

As shown in FIGS. 1-3 , the water purification and drainage device 5 includes a drainage pipe 51 and a drainage pump 52 . The water inlet end of the drainage pipe 51 is located inside the space bracket 6 . The opening 12 protrudes, the extended part of the drain pipe 51 extends to the shore of the aquaculture pond, the drain pipe 51 is connected to the drain pump 52 on the pipeline extended from the submerged box structure 1, and the water outlet of the drain pipe 51 is connected to the side channel of the pond , The pond side canals are set around the shore of the breeding pond, so that the treated purified water flows back to the breeding pond naturally along the pond side canals, and the purified water after circulating through the pond side canals is oxygenated (absorbs oxygen in the air), and more Conducive to improving the water quality of aquaculture ponds. Preferably, the drain pipe 51 is a hose.

As a specific embodiment of the present invention, after the drain pipe 51 protrudes from the interior of the space bracket 6, it extends upward along the inner wall of the submerged box structure 1 away from the submerged box structure 1, and is connected to the drainage pump on the shore of the culture pond 52. The treated purified water extracted by the drainage pump 52 is discharged into the annular water channel surrounding the pond. The annular water channel can be provided with a plurality of drainage outlets around the pond, and selected to be opened according to needs, and the treated purified water is discharged into the pond. , and form a slow circulation around the pond (agitate the water body and enhance the water purification effect). Since the drainage pump 52 continuously extracts the treated and purified water at the bottom of the submerged box structure 1, the water level inside the submerged box structure 1 is always lower than the current water level of the culture pond, thereby forming a water level difference, which will be placed along the bottom of the pond. The movable sewage inlet pipe 41 (marked and moved by the floating body 7) continuously presses the sewage at the bottom of the pond into the submerged box structure 1, and performs water quality precipitation, filtration, purification and degradation treatment layer by layer from top to bottom. . Thereby, the purification treatment of the water quality inside the aquaculture pond can be completed without occupying additional space.

As a specific embodiment of the present utility model, the mesh wire bag 3 contains physical filtering substances, adsorption purification substances or biodegradable water purification substances. Physical filtering substances, adsorption purification substances or biodegradable water purification substances are all substances in the prior art. The mesh wire bag 3 equipped with physical filtration, adsorption purification or biodegradation water purification substances filters, purifies and treats the sewage. A physical filter substance is, for example, activated carbon. The adsorption purification substance is, for example, activated carbon, adsorption resin, zeolite, alumina or silica gel. Biodegradable water purification substances are microorganisms. A decontamination method using microorganisms or metabolites produced by microorganisms for flocculation and sedimentation.

As a specific embodiment of the present invention, the mesh wire bag 3 can be filled with a variety of different water purification substances, and the water purification substances include physical filtering substances, adsorption purification substances or biodegradable water purification substances. The mesh wire bag 3 can be filled with various physical filtering substances, various adsorption purification substances and/or various biodegradable water purification substances.

As a specific embodiment of the present invention, after a period of water purification treatment, when it is found that the purification effect is reduced, that is, when the filtration, adsorption and biodegradation efficiency is found to be reduced, and the water purification needs cannot be met, the immersed box structure can be 1. The mesh line bags containing various physical filtration, adsorption purification, and biodegradable substances placed in the 3 are taken out one by one, and reused after manual cleaning and drying or directly replaced with new materials (the cleaned solid dirt can be used in agriculture. fertilizer or other uses).

The beneficial effects achieved by this application are as follows:

(1) The present application adopts the immersion box structure made of impermeable material and places it in the culture pond to purify the sewage, so as to avoid the need for additional space and site for the water purification treatment of the culture pond, and save space and site resources.

(2) This application utilizes the pressure generated by the water level difference between the internal water level of the immersed box structure and the water body of the culturing pond (the bottom clean water is continuously drawn by the drainage pump, so that the internal water level of the immersed box structure is always lower than the water level of the external pond At the same time, the stacking height of the filter material in the immersed box structure and the position of the outlet of the sewage pipe in the immersed box structure (that is, the water outlet at the upper end of the inlet extension pipe) are always kept below the pond water surface by a certain distance), which can automatically The sewage at the bottom of the pond is pressed into the interior of the immersed box structure, and the sewage is purified step by step from top to bottom. The structure is simple and the purification effect is good.

(3) In this application, various physical filtration, adsorption purification, and biodegradable substances are divided into mesh wire bags, and placed layer by layer in the immersed box structure. The mesh wire bags are convenient for manual installation, replacement and cleaning, etc., and the operation is relatively Convenience and manpower saving.

(4) The application utilizes the drainage pump to continuously extract the purified water treated at the bottom of the immersed box structure, thereby maintaining the water level difference (water pressure) between the inside of the immersed box structure and the external culture pond, thereby continuously removing the sewage at the bottom of the culture pond Press into the immersion box structure for purification treatment to ensure uninterrupted treatment of sewage and improve treatment efficiency.

The above descriptions are merely embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the scope of the claims of the present utility model.

Claims (10)

1. an immersion type culturing pond water purification device, is characterized in that, comprises: the immersion type box structure of sealing, described immersion type box body structure is immersed in the culture pond water body, and the inside of described immersion type box body structure is water purification Treatment space, the water purification treatment space is layered with mesh wire bags along its height direction, and the mesh wire bags are filled with water purification substances; the bottom of the submerged box structure is connected with a sewage water inlet device and a water purification discharge device, one end of the sewage water inlet device extends into the water body of the cultivating pond, and the other end is communicated with the water purification treatment space; the drainage end of the water purification discharge device is communicated with the water purification treatment space. 2. The immersion pond water quality purification device according to claim 1, wherein the sewage water inlet of the sewage water inlet device is located in the head space of the water purification treatment space, and the sewage discharged from the sewage water inlet Purified water is formed from the mesh wire bag of the upper layer into the mesh wire bag of the lower layer in sequence, and the purified water is collected in the bottom space of the water purification treatment space. 3. The immersed culture pond water purification device according to claim 2, wherein the sewage water inlet device comprises a sewage water inlet pipe and a water inlet extension pipe, and the sewage water inlet pipe and the water inlet extension pipe are communicated with each other. ; the sewage water inlet pipe is arranged on the outside of the immersion box structure and extends outward along the first opening at the bottom of the immersion box structure; the water inlet extension pipe is arranged on the immersion box The interior of the body structure extends upward along the first opening at the bottom of the submerged box structure to the top space of the water purification treatment space. 4. The water purification device for submerged culture ponds according to claim 3, wherein the water inlet extension pipe extends upward along the first opening at the bottom of the submerged box structure, and the water inlet extends upwards. The height of the water outlet at the upper end of the extension pipe is located 20-30 cm below the water surface of the culture pond, and the top of the submerged box structure is higher than the water surface of the culture pond. 5. The immersed culture pond water purification device according to claim 3, wherein the end of the sewage water inlet pipe extending out of the immersed box structure is connected with a floating body; The nozzle is equipped with a suction head with a coarse filter screen to avoid large debris from entering the sewage inlet pipe. 6. The immersed culture pond water purification device according to claim 1, wherein the highest surface of the mesh wire bag stack is located below the top of the immersion box structure, and the mesh wire bag stack The highest point of the stack is lower than the water surface of the culture pond where it is located, and the distance between the highest surface of the mesh line bag stack and the water surface of the culture pond is in the range of 30cm-50cm. 7 . The immersed culture pond water purification device according to claim 1 , wherein a spacer bracket is placed at the inner bottom of the submerged box structure, and the mesh wire bag is located above the spacer support. 8 . 8. The immersed culture pond water purification device according to claim 7, wherein the water purification discharge device comprises a drain pipe and a drain pump, and the water inlet end of the drain pipe is located at the lower part of the space bracket, and the A drain pipe extends from the second opening at the bottom of the submerged box structure to the shore of the culture pond, and the drain pipe is connected to the drainage pump from the pipeline extending from the submerged box structure. The outlet of the drain pipe is connected to the pond side channel, so that the treated purified water flows back to the culture pond naturally along the pond side channel. 9. The immersion type culturing pond water purification device according to claim 1, characterized in that, a plurality of different water purification substances are housed in the mesh wire bag, and the water purification substances include physical filtering substances, adsorption purification substances and/or biodegradable water purification substances. 10 . The immersed culture pond water purification device according to claim 3 , wherein the sewage inlet pipe is a hose. 11 .

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