Water nutrition balancing device

Abstract

The utility model relates to the technical field of aquaculture, and particularly discloses a water body nutrition balancing device which comprises a circulating pump, a water body nutrition balancing device and a water body nutrition balancing device, the water inlet pipe and the water outlet pipe are respectively communicated with a water inlet and a water outlet of the circulating pump; the circulating liquid storage components are respectively communicated with the water inlet pipe and the water outlet pipe; the water inlet valve is arranged on the water inlet pipe, and the water outlet valve is arranged on the water outlet pipe. According to the utility model, the nutrient can be added into the circulating liquid storage component, and the circulating pump and each pipeline are matched to operate, so that the water nutrition in the culture pond can be flexibly balanced and adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the aquaculture technical field, especially a water body nutrition balance device. BACKGROUND

[0002] In the aquaculture industry, water body nutrition balance refers to maintaining the nutrients such as nitrogen, phosphorus, etc. in the water body at a suitable concentration to promote the healthy growth of cultured organisms and prevent water body eutrophication. The prior art mainly monitors the water body nutrients through artificial sampling analysis, online monitoring equipment and remote sensing technology, and maintains the nutrition balance through reasonable feeding, water quality control and ecological breeding. However, these methods have problems such as time-consuming and labor-intensive, high cost, limited precision, and cannot flexibly balance and adjust the water body nutrition in the culture pond. SUMMARY

[0003] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a water body nutrition balance device, which can flexibly balance and adjust the water body nutrition in the culture pond by adding nutrients in the circulating liquid storage assembly, and cooperating with the operation of the circulating pump and the pipelines.

[0004] The above technical purpose of the utility model is realized by the following technical scheme:

[0005] A water body nutrition balance device comprises:

[0006] a circulating pump;

[0007] a water inlet pipe and a water outlet pipe, which are respectively connected with the water inlet and outlet of the circulating pump;

[0008] at least one set of circulating liquid storage assemblies, which are respectively connected with the water inlet pipe and the water outlet pipe;

[0009] a water inlet valve and a water outlet valve, which are respectively arranged on the water inlet pipe and the water outlet pipe.

[0010] Compared with the prior art, the application realizes the mixing and circulation of the nutrients and the water body by cooperating the circulating pump, the circulating liquid storage assembly, the pipelines and the valves, thereby effectively adjusting the nutrition balance of the water body, and ensuring that the nutrients can be uniformly mixed in the water body during the water body circulation process, improving the efficiency and accuracy of the nutrition adjustment.

[0011] As a preferred scheme of the utility model, the circulating liquid storage assembly comprises:

[0012] A circulating liquid storage member, a water inlet of the circulating liquid storage member is connected with the water outlet pipe through a circulating water inlet pipe, and a water outlet of the circulating liquid storage member is connected with the water inlet pipe through a circulating water outlet pipe;

[0013] A liquid level sensor assembly is arranged on the circulating liquid storage member, and the liquid level sensor assembly is used for detecting the liquid level in the circulating liquid storage member.

[0014] By arranging the liquid level sensor assembly, the liquid level in the circulating liquid storage member can be effectively detected, so that the liquid level in the circulating liquid storage member is ensured to be in a proper range, and the mixing effect of the nutrient agent and the water body is prevented from being affected by the excessively high or low liquid level.

[0015] As a preferred scheme of the utility model, the circulating liquid storage assembly comprises a circulating valve assembly, and the circulating valve assembly is arranged on the circulating water inlet pipe and the circulating water outlet pipe.

[0016] By arranging the circulating valve assembly, the flow of the water body can be accurately controlled, and the mixing accuracy and flexibility of the nutrient agent and the water body are further improved.

[0017] As a preferred scheme of the utility model, the circulating valve assembly comprises a water inlet circulating valve and a water outlet circulating valve, the water inlet circulating valve is arranged on the circulating water inlet pipe, and the water outlet circulating valve is arranged on the circulating water outlet pipe.

[0018] By arranging the water inlet circulating valve and the water outlet circulating valve, the circulating route of the water body can be accurately controlled, and the control accuracy of the circulating water route is improved.

[0019] As a preferred scheme of the utility model, the liquid level sensor assembly comprises:

[0020] A high liquid level sensor is arranged on the side wall of the circulating liquid storage member close to the water inlet of the circulating liquid storage member, and the arrangement height of the high liquid level sensor is lower than the height of the water inlet of the circulating liquid storage member.

[0021] A low liquid level sensor is arranged on the side wall of the circulating liquid storage member close to the water outlet of the circulating liquid storage member, and the arrangement height of the low liquid level sensor is higher than the height of the water outlet of the circulating liquid storage member.

[0022] By arranging the high liquid level sensor and the low liquid level sensor, the liquid level in the circulating liquid storage member can be accurately detected, the accuracy and reliability of the liquid level detection are ensured, and the problem that the mixing effect of the nutrient agent and the water body is low due to the abnormal liquid level in the circulating liquid storage member is prevented.

[0023] As the preferred scheme of the utility model, the liquid level sensor assembly further comprises at least one middle liquid level sensor, the middle liquid level sensor is arranged on the side wall of the circulating liquid storage part, and the middle liquid level sensor is located between the high liquid level sensor and the low liquid level sensor.

[0024] The above scheme can effectively improve the liquid level detection precision by arranging the middle liquid level sensor between the high liquid level sensor and the low liquid level sensor.

[0025] As the preferred scheme of the utility model, the outlet pipe is provided with a spray head at the end away from the circulating pump.

[0026] The above scheme can improve the uniformity of the nutrient agent by spraying the mixed water body back to the breeding pond through the spray head.

[0027] As the preferred scheme of the utility model, the controller is connected with the circulating pump, the circulating liquid storage assembly, the water inlet valve and the water outlet valve.

[0028] The above scheme can realize the centralized control of the circulating pump, the circulating liquid storage assembly, the water inlet valve and the water outlet valve through the setting of the controller, improve the automation degree of the whole device, simplify the operation process and reduce the demand for manual intervention.

[0029] As the preferred scheme of the utility model, the water quality detector is connected with the controller, and the water quality detector is used for detecting the nutrient composition of the water body.

[0030] The above scheme can effectively and timely detect the nutrient composition of the water body in the breeding pond and provide data support for accurately adjusting the nutrient balance.

[0031] As the preferred scheme of the utility model, the circulating liquid storage part is provided with a stirring device, and the stirring device is used for stirring the water body in the circulating liquid storage part.

[0032] The above scheme can promote the sufficient mixing of the nutrient agent and the water body by stirring the water body, improve the mixing efficiency and uniformity by arranging the stirring device in the circulating liquid storage part.

[0033] The water body nutrient balance device has the beneficial effects that: through the arrangement of the circulating pump, the circulating liquid storage assemblies, the circulating pipelines and the valves, the nutrient agent can be mixed with the water in the circulating water pipeline through the water circulation, the nutrient agent and the water can be fully contacted in the circulating process, the nutrient agent can be fully mixed with the water, the number of the circulating liquid storage assemblies can be increased to cope with the situation of adding multiple nutrient agents, each group of the circulating liquid storage assemblies corresponds to one nutrient agent, the circulating liquid storage assemblies of the corresponding nutrient agent are opened according to the missing of the nutrient components of the water, and the flexibility of the water body nutrient balance treatment is greatly improved; and secondly, through the arrangement of the controller and the water quality detector, the detection data obtained by the water quality detector in the water body of the breeding pond is used to automatically perform the nutrient balance treatment on the water body in the breeding pond, the automation of the water body nutrient balance treatment is effectively improved, the labor intensity and the operation difficulty of the workers are reduced, and the timeliness and the treatment efficiency of the water body nutrient balance are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a structure schematic view of the water body nutrient balance device.

[0035] In the figure: 1, circulating pump; 2, water inlet pipe; 3, water outlet pipe; 4, circulating liquid storage assembly; 41, circulating liquid storage piece; 42, liquid level sensor assembly; 421, high liquid level sensor; 422, low liquid level sensor; 43, circulating valve assembly; 431, water inlet circulating valve; 432, water outlet circulating valve; 44, circulating water inlet pipe; 45, circulating water outlet pipe; 5, spray head; 6, water inlet valve; 7, water outlet valve.

[0036] The implementation, functional features and advantages of the utility model will be further described with reference to the drawings in combination with the embodiments. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0038] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition and the like between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0039] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.

[0040] The utility model provides a kind of water body nutrition balance device.

[0041] With reference Figure 1 In an embodiment of the utility model, the water body nutrition balance device includes a circulating pump 1, a water inlet pipe 2, a water outlet pipe 3, at least one set of circulating liquid storage assembly 4, a water inlet valve 6 and a water outlet valve 7. In this embodiment, to better explain the technical principle of this embodiment, the number of circulating liquid storage assembly 4 is set to two sets. In other embodiments, the number of circulating liquid storage assembly 4 can be increased or decreased according to actual needs, and the number of circulating liquid storage assembly 4 is not limited. The water inlet pipe 2 and the water outlet pipe 3 are connected to the water inlet and the water outlet of the circulating pump 1 respectively. Each set of circulating liquid storage assembly 4 is connected to the water inlet pipe 2 and the water outlet pipe 3 respectively. The water inlet valve 6 is arranged on the water inlet pipe 2, and the water outlet valve 7 is arranged on the water outlet pipe 3. The water outlet pipe 3 is provided with a spray head 5 at the end away from the circulating pump 1. Through the cooperation of the circulating pump 1, the circulating liquid storage assembly 4, the pipelines and the valves, the mixing and circulation of the nutrient agent and the water body are realized, thereby effectively adjusting the nutrition balance of the water body. During the circulation of the water body, the nutrient agent can be uniformly mixed in the water body, improving the efficiency and accuracy of nutrition adjustment. Secondly, the mixed water body is uniformly sprayed back to the breeding pond through the spray head 5, improving the uniformity of the nutrient agent distribution.

[0042] With reference Figure 1In an embodiment, the circulating liquid storage assembly 4 comprises a circulating liquid storage member 41 and a liquid level sensor assembly 42. In this embodiment, the circulating liquid storage member 41 is a liquid storage tank, the top wall of the liquid storage tank is provided with a water inlet, the bottom wall of the liquid storage tank is provided with a water outlet, the water inlet of the liquid storage tank is connected to the water outlet pipe 3 through a circulating water inlet pipe 44, and the water outlet of the liquid storage tank is connected to the water inlet pipe 2 through a circulating water outlet pipe 45. In other embodiments, the circulating liquid storage member 41 can also be a liquid storage pool as long as it can store liquid and has a water inlet and a water outlet. The specific structure of the circulating liquid storage member 41 is not limited here, and the following description takes the liquid storage pool as an example. The water outlet of the liquid storage pool is provided on the bottom wall of the liquid storage pool and is connected to the water inlet pipe 2 through the circulating water outlet pipe 45. The top of the liquid storage pool is provided with an opening as the water inlet. One end of the circulating water inlet pipe 44 is connected to the water outlet pipe 3, and the other end corresponds to the opening on the top of the liquid storage pool, so that water from the circulating water inlet pipe 44 can enter the liquid storage pool from the opening on the top of the liquid storage pool. The liquid level sensor assembly 42 is arranged on the circulating liquid storage member 41 and is used to detect the liquid level in the circulating liquid storage member 41. In this embodiment, the liquid level sensor assembly 42 comprises a high liquid level sensor 421 and a low liquid level sensor 422. The high liquid level sensor 421 is arranged on the side wall of the circulating liquid storage member 41 near the water inlet of the circulating liquid storage member 41, and the installation height of the high liquid level sensor 421 is lower than the height of the water inlet of the circulating liquid storage member 41. The low liquid level sensor 422 is arranged on the side wall of the circulating liquid storage member 41 near the water outlet of the circulating liquid storage member 41, and the arrangement height of the low liquid level sensor 422 is higher than the height of the water outlet of the circulating liquid storage member 41. In other embodiments, in order to improve the liquid level detection accuracy, a middle liquid level sensor can be arranged between the high liquid level sensor 421 and the low liquid level sensor 422 to improve the liquid level detection accuracy. The number of middle liquid level sensors is determined according to actual needs, and the number of middle liquid level sensors is not limited here. Through the arrangement of the liquid level sensor assembly 42, the liquid level in the circulating liquid storage member 41 can be effectively detected, so that the liquid level in the circulating liquid storage member 41 is ensured to be in a suitable range, and the mixing effect of the nutrient agent and the water body is prevented from being affected by the excessively high or low liquid level. Through the arrangement of the high liquid level sensor 421 and the low liquid level sensor 422, the liquid level in the circulating liquid storage member 41 can be accurately detected, so that the accuracy and reliability of the liquid level detection are ensured, and the problem of low mixing effect of the nutrient agent and the water body caused by the abnormal liquid level in the circulating liquid storage member 41 is prevented.

[0043] Referring to Figure 1In an embodiment, in order to better control the circulating water path, the circulating liquid storage assembly 4 further comprises a circulating valve assembly 43, which comprises a water inlet circulating valve 431 and a water outlet circulating valve 432. The water inlet circulating valve is arranged on the circulating water inlet pipe 44, and the water outlet circulating valve 432 is arranged on the circulating water outlet pipe 45. Through the arrangement of the water inlet circulating valve 431 and the water outlet circulating valve 432, the route of water circulation can be accurately controlled, the control accuracy of the circulating water path is improved, and the mixing accuracy and flexibility of the nutrients and water are further improved.

[0044] In an embodiment, in order to improve the automation degree of the water balance device, the water balance device further comprises a controller, which is connected with the circulating pump 1, the high liquid level sensor 421, the medium liquid level sensor, the low liquid level sensor 422, the water inlet circulating valve 431, the water outlet circulating valve 432, the water inlet valve 6 and the water outlet valve 7 through cables. The controller can control the circulating pump 1, the water inlet circulating valve 431, the water outlet circulating valve 432, the water inlet valve 6 and the water outlet valve 7, and can receive liquid level data from the high liquid level sensor 421, the medium liquid level sensor and the low liquid level sensor 422. Through the arrangement of the controller, centralized control of the circulating pump 1, the high liquid level sensor 421, the medium liquid level sensor, the low liquid level sensor 422, the water inlet circulating valve 431, the water outlet circulating valve 432, the water inlet valve 6 and the water outlet valve 7 can be realized, the automation degree of the whole device is improved, the operation process is simplified, and the need for manual intervention is reduced.

[0045] In an embodiment, in order to further improve the automation degree of the water balance device, the water balance device further comprises a water quality detector. It is worth noting that the water quality detector adopts a water quality detector capable of detecting the nutrient composition of water in the prior art, and the present application does not improve the water quality detector itself. The specific structure does not belong to the protection scope of the present application. The water quality detector is connected with the controller through a cable. The water quality detector is used for detecting the nutrient composition of water. In this embodiment, the water quality detector is used for detecting the nutrient composition of water in the breeding pond, which includes carbon, nitrogen, phosphorus, potassium, calcium, magnesium, salinity, etc. The water quality detector obtains water nutrient composition data by detecting the water, and sends the water nutrient composition data to the controller. The controller determines the lack of nutrients in the water through the water nutrient composition data, so as to automatically adjust the circulating pump 1 and the circulating liquid storage assembly 4 and other equipment to realize the supplement of nutrients. Through the arrangement of the water quality detector, the nutrient composition of the water in the breeding pond can be effectively and timely detected, and data support can be provided for accurate adjustment of nutrient balance.

[0046] In an embodiment, in order to improve the mixing efficiency and uniformity of the nutrient agent and the water body, a stirring device can be arranged in the circulating liquid storage member 41, which can stir the water body in the circulating liquid storage member 41. In this embodiment, the stirring device is a common device for stirring water body in the prior art, such as a stirring device including stirring blades and a driving motor, as long as it can realize stirring of the water body. It is common knowledge to those skilled in the art and a conventional technical means, which will not be described here. By arranging the stirring device in the circulating liquid storage member 41, the nutrient agent can be fully mixed with the water body by stirring the water body, thereby improving the mixing efficiency and uniformity.

[0047] It is worth noting that the circulating pump 1 mentioned in the above embodiments can be a centrifugal circulating pump 1 in the prior art, and different pump bodies can be used as the circulating pump 1 according to actual needs, and the specific type of the circulating pump 1 is not limited here; the water inlet valve 6, the water outlet valve 7, the water inlet circulating valve 431 and the water outlet circulating valve 432 mentioned in the above embodiments can be electromagnetic valves in the prior art, and different types of valves can be used according to actual needs, and the specific type of the water inlet valve 6, the water outlet valve 7, the water inlet circulating valve 431 and the water outlet circulating valve 432 is not limited here; the high liquid level sensor 421, the medium liquid level sensor and the low liquid level sensor 422 mentioned in the above embodiments can be electrode type liquid level sensors in the prior art, and different types of liquid level sensors can be used according to actual needs, and the specific type of the high liquid level sensor 421, the medium liquid level sensor and the low liquid level sensor 422 is not limited here.

[0048] Through the arrangement of the circulating pump 1, the circulating liquid storage assembly 4, the circulating pipelines and the valves, the nutrient agent can be mixed with the water body in the circulating water pipeline through the water circulation, the nutrient agent and the water body can be fully contacted during the circulation, which ensures that the nutrient agent can be fully mixed with the water body, and the number of the circulating liquid storage assemblies 4 can be increased to cope with the situation of adding multiple nutrient agents. Each group of the circulating liquid storage assemblies 4 corresponds to one nutrient agent, and the circulating liquid storage assemblies 4 of the corresponding nutrient agent are opened according to the missing of the nutrient components of the water body, which greatly improves the flexibility of the water body nutrient balance treatment; secondly, through the arrangement of the controller and the water quality detector, the detection data obtained by detecting the nutrient components of the water body in the breeding pond by the water quality detector can realize automatic nutrient balance treatment of the water body in the breeding pond, effectively improve the automation of the water body nutrient balance treatment, reduce the labor intensity and operation difficulty of the staff, and greatly improve the timeliness and efficiency of the water body nutrient balance treatment.

[0049] The working principle of the present application is as follows:

[0050] In order to better illustrate the working principle of the water body balancing device described in the present application, the number of circulating liquid storage assemblies 4 is set to two groups, namely circulating liquid storage assembly 4A and circulating liquid storage assembly 4B. The circulating liquid storage assembly 4A includes circulating liquid storage 41A, water inlet circulating valve 431A, and water outlet circulating valve 432A. The circulating liquid storage assembly 4B includes circulating liquid storage 41B, water inlet circulating valve 431B, and water outlet circulating valve 432B.

[0051] When the nutrient components in the water body of the culture pond are missing, it is assumed in the working principle that there are two missing nutrient components in the water body, namely nutrient A and nutrient B, and their corresponding nutrient agents are nutrient agent A and nutrient agent B. The following is the process of supplementing nutrient A and nutrient B to the water body of the culture pond:

[0052] Supplementing nutrient A to the water body of the culture pond: Add nutrient agent A to circulating liquid storage 41A. Open water inlet valve 6, water inlet circulating valve 431A, and circulating pump 1 to supply water to circulating liquid storage 41A. When the liquid level in circulating liquid storage 41A is at an appropriate position, close water inlet valve 6 and open water outlet circulating valve 432A. This allows the water body to circulate in the loop of circulating pump 1-water inlet circulating valve 431A-circulating liquid storage 41A-water outlet circulating valve 432A-circulating pump 1. When the water enters circulating liquid storage 41A through the water inlet, it collides with the water in the circulating liquid storage, thereby achieving the purpose of water agitation and increasing the dissolved oxygen content of the water body. After a period of water circulation, close water inlet circulating valve 431A and open water outlet valve 7. The water body mixed with nutrient agent A in circulating liquid storage 41A can be sprayed back into the culture pond through spray head 5 to complete the process of supplementing nutrient A to the water body.

[0053] Supplementing nutrient B to the water body of the culture pond: Add nutrient agent B to circulating liquid storage 41B. Open water inlet valve 6, water inlet circulating valve 431B, and circulating pump 1 to supply water to circulating liquid storage 41B. When the liquid level in circulating liquid storage 41B is at an appropriate position, close water inlet valve 6 and open water outlet circulating valve 432B. This allows the water body to circulate in the loop of circulating pump 1-water inlet circulating valve 431B-circulating liquid storage 41B-water outlet circulating valve 432B-circulating pump 1. When the water enters circulating liquid storage 41B through the water inlet, it collides with the water in the circulating liquid storage, thereby achieving the purpose of water agitation and increasing the dissolved oxygen content of the water body. After a period of water circulation, close water inlet circulating valve 431B and open water outlet valve 7. The water body mixed with nutrient agent B in circulating liquid storage 41B can be sprayed back into the culture pond through spray head 5 to complete the process of supplementing nutrient B to the water body.

[0054] Meanwhile, the water in the culture pond is supplemented with nutrient A and nutrient B: nutrient A and nutrient B are added to the circulating liquid containers 41A and 41B respectively, the water inlet valve 6, the water inlet circulating valves 431A and 431B, and the circulating pump 1 are opened simultaneously to supply water to the circulating liquid containers 41A and 41B, when the water level in the circulating liquid container 41A and the water level in the circulating liquid container 41B are both at the appropriate position, the water inlet valve 6 is closed, the water outlet circulating valves 432A and 432B are opened, and the water in the circulating liquid containers 41A and 41B is circulated in the circulating loop of the circulating liquid containers 41A, 41B, and the circulating pump 1, after a period of water circulation, the water inlet circulating valves 431A and 431B are closed, and the water in the circulating liquid containers 41A and 41B mixed with nutrient A and nutrient B is sprayed back into the culture pond through the spray head 5, to complete the simultaneous supplementation of nutrient A and nutrient B in the water in the culture pond.

[0055] As for the cleaning process of the circulating liquid containers 41A, 41B, and the circulating pump 1: the water inlet valve 6, the circulating pump 1, and the water outlet valve 7 are started together to clean the circulating pump 1; the above-mentioned nutrient A supplementation or nutrient B supplementation is performed three times without adding nutrient, to clean the circulating liquid container 41A or the circulating liquid container 41B.

[0056] Among them, the controller judges the nutrient composition data of the water provided by the water quality detector, and the above-mentioned nutrient supplementation and cleaning steps and processes can be realized automatically by the controller controlling the valves and the circulating pump 1, thereby greatly improving the automation degree and flexibility of the water nutrient balance.

[0057] The above-mentioned is only the preferred embodiment of the present application, and does not limit the patent range of the present application, any equivalent structural transformation made under the inventive concept of the present application, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A water body nutrient balancing apparatus, comprising: The application relates to a circulating water tank, which comprises the following components: a circulating pump; an inlet pipe and an outlet pipe, which are respectively connected with an inlet and an outlet of the circulating pump; at least one circulating liquid storage assembly, which is respectively connected with the inlet pipe and the outlet pipe; an inlet valve arranged on the inlet pipe and an outlet valve arranged on the outlet pipe.

2. The apparatus for balancing the nutrients of a body of water according to claim 1, wherein, The circulating liquid storage assembly comprises: a circulating liquid storage member, an inlet of which is connected with the outlet pipe through a circulating inlet pipe, and an outlet of which is connected with the inlet pipe through a circulating outlet pipe; a liquid level sensor assembly arranged on the circulating liquid storage member, which is used for detecting the liquid level in the circulating liquid storage member.

3. The apparatus of claim 2, wherein: The circulating liquid storage assembly comprises a circulating valve assembly arranged on the circulating inlet pipe and the circulating outlet pipe.

4. The apparatus of claim 3, wherein: The circulating valve assembly comprises an inlet circulating valve arranged on the circulating inlet pipe and an outlet circulating valve arranged on the circulating outlet pipe.

5. The apparatus for balancing the nutrients of a body of water of claim 2, wherein, The liquid level sensor assembly comprises: a high liquid level sensor arranged on a side wall of the circulating liquid storage member close to the inlet of the circulating liquid storage member, and the arrangement height of the high liquid level sensor is lower than the height of the inlet of the circulating liquid storage member; a low liquid level sensor arranged on a side wall of the circulating liquid storage member close to the outlet of the circulating liquid storage member, and the arrangement height of the low liquid level sensor is higher than the height of the outlet of the circulating liquid storage member.

6. The apparatus of claim 5, wherein: The liquid level sensor assembly further comprises at least one middle liquid level sensor arranged on a side wall of the circulating liquid storage member, which is located between the high liquid level sensor and the low liquid level sensor.

7. The apparatus of claim 1, wherein: The outlet pipe is provided with a spray head at an end far away from the circulating pump.

8. The apparatus of claim 1, wherein: The application further comprises a controller connected with the circulating pump, the circulating liquid storage assembly, the inlet valve and the outlet valve.

9. The apparatus of claim 8, wherein: The application further comprises a water quality detector connected with the controller, which is used for detecting the nutrient components of water.

10. The apparatus of claim 2, wherein: The circulating liquid storage member is provided with a stirring device, which is used for stirring the water in the circulating liquid storage member.

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