Mariculture nitrate nitrogen monitoring system

Abstract

The utility model discloses a mariculture nitrate nitrogen monitoring system, which comprises a flow-type sensor mounting joint J, a nitrate nitrogen sensor C, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D, a nitrate nitrogen sensor D and a nitrate nitrogen sensor D, and is characterized in that the top of the sensor mounting joint J is provided with a discharge port J2; the input end of the sewage pump B is communicated with the sewage pool, and the output end is communicated with the input end J1 of the sensor mounting joint J; the air compressor is communicated with the airflow input end J3 of the sensor mounting joint J through an air compression valve F1; the input end of the discharge valve F3 is communicated with the input end J1 at the bottom of the sensor mounting joint J; the input end of the water purification valve F4 is communicated with the water purification tank, and the output end is communicated with the input end J1 of the sensor mounting joint J; and the controller is electrically connected with the nitrate nitrogen sensor C and the valves respectively. The sewage pool is provided with a plurality of paths, and each path of sewage pool is communicated with the sewage pump B through a sewage valve. The utility model has the beneficial effects of low maintenance cost, prolonged service life and improved detection precision.

Description

Technical Field

[0001] This utility model relates to a nitrate nitrogen monitoring system for marine aquaculture. Background Technology

[0002] In marine aquaculture, the presence of fish excrement and feed significantly affects water quality, further impacting fish survival rates. Typically, aquaculture farms set up wastewater ponds to treat the wastewater generated during aquaculture. Larger farms may have multiple wastewater ponds. Whether the wastewater in these ponds meets treatment standards requires online detection of nitrate nitrogen content using a nitrate nitrogen sensor to determine if the wastewater treatment has met the standards. In existing technologies, the mixture of fish excrement, feed, and impurities such as salt in seawater can affect the detection accuracy of the nitrate nitrogen sensor. Utility Model Content

[0003] To address the above deficiencies, this invention provides a nitrate and nitrogen monitoring system for seawater aquaculture, which includes a device equipped with a backwashing sensor.

[0004] The technical solution of this utility model is:

[0005] A nitrate and nitrogen monitoring system for marine aquaculture includes:

[0006] A flow-through sensor mounting connector J is provided to fix the nitrate sensor C, and a discharge port J2 is provided on the top of the sensor mounting connector J;

[0007] Sewage pump B has its input end connected to the sewage tank and its output end connected to the input end J1 of the sensor mounting connector J.

[0008] The air compressor is connected to the air inlet J3 of the sensor mounting joint J via the air compressor valve F1;

[0009] The discharge valve F3 has its input end connected to the input end J1 at the bottom of the sensor mounting connector J;

[0010] The water purification valve F4 has its input end connected to the water purification tank and its output end connected to the input end J1 of the sensor mounting connector J.

[0011] The controller is electrically connected to the nitrate sensor C and each valve.

[0012] The controller includes:

[0013] The system consists of a PLC control module, an E+H meter, and a human-machine interface. The PLC control module is connected to the E+H meter via a serial port and to the human-machine interface via a TPC interface. The PLC control module is electrically connected to each valve. The E+H meter is electrically connected to the nitrate and nitrogen sensor C. The E+H meter is a multi-parameter, multi-channel transmitter CM442.

[0014] The sewage tanks are multi-channel, and each sewage tank is connected to the sewage pump B via a sewage valve.

[0015] Each of the sewage tanks is equipped with a water pump, which can send the sewage in the sewage tank to sewage pump B.

[0016] When the sewage pump B delivers sewage, the clean water valve F4, the air compressor valve F1, and the discharge valve F3 are closed, allowing the sewage to flow into the sensor mounting connector J, and the nitrate sensor C to detect the sewage.

[0017] When the air compressor valve F1 and the discharge valve F3 are open, the clean water valve F4 and the sewage pump B are closed, and the sewage is discharged from the discharge valve F3. The airflow can clean the nitrate sensor C in the sensor mounting connector J.

[0018] When the air pressure valve F1 and the discharge valve F3 are closed, the water in the water purification tank can enter the sensor mounting joint J through the water purification valve F4 and soak the nitrate sensor C.

[0019] The sewage pump B is a peristaltic pump.

[0020] In addition to the air compressor, water purification tank, and sewage tank, the monitoring system is installed in the same enclosure.

[0021] The water purification tank is located at a high position and can flow into the sensor mounting connector J using its own pressure.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] Under normal conditions, the nitrate sensor C is in clean water, which reduces the impact of feed, fish excrement, and marine life on the sensor C, and reduces the adhesion and corrosion of the sensor C by feed and fish excrement. After the test is completed, the nitrate sensor C is cleaned with air in time, which allows the sensor C to work in the best environment, which is conducive to improving measurement accuracy, reducing maintenance costs, and extending service life.

[0024] This invention has the advantages of low maintenance cost, extended service life, and improved detection accuracy. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0026] The present invention will now be further described with reference to the accompanying drawings:

[0027] like Figure 1 As shown,

[0028] A nitrate and nitrogen monitoring system for marine aquaculture includes:

[0029] A flow-through sensor mounting connector J is provided to fix the nitrate sensor C, and a discharge port J2 is provided on the top of the sensor mounting connector J;

[0030] Sewage pump B has its input end connected to the sewage tank and its output end connected to the input end J1 of the sensor mounting connector J.

[0031] The air compressor is connected to the air inlet J3 of the sensor mounting joint J via the air compressor valve F1;

[0032] The discharge valve F3 has its input end connected to the input end J1 at the bottom of the sensor mounting connector J;

[0033] The water purification valve F4 has its input end connected to the water purification tank and its output end connected to the input end J1 of the sensor mounting connector J.

[0034] The controller is electrically connected to the nitrate sensor C and each valve.

[0035] The purified water in the water purification tank can be tap water, mineral water, purified water, and reclaimed water, etc. The water purification tank can be a water tank, water bottle, or other water container. The water consumption is very low, only for the pipes and sensor installation connectors.

[0036] This invention enables the air compressor's airflow to clean the nitrate sensor C in a timely manner through a programmed setting. Under normal conditions, the nitrate sensor C is immersed in clean water, which significantly reduces the impact of feed and fish excrement on the nitrate sensor C.

[0037] The controller includes:

[0038] The system consists of a PLC control module, an E+H meter, and a human-machine interface. The PLC control module is connected to the E+H meter via a serial port and to the human-machine interface via a TPC interface. The PLC control module is electrically connected to each valve. The E+H meter is electrically connected to the nitrate and nitrogen sensor C. The E+H meter is a multi-parameter, multi-channel transmitter CM442.

[0039] The multi-parameter, multi-channel transmitter sends the signal collected by the nitrate and nitrogen sensor C to the PLC control module for storage and retrieval, and displays it through a human-machine interface (HMI). The HMI can be a touch screen, through which parameters required for various functions can be set.

[0040] The valve selected in this invention is a solenoid valve, which facilitates automatic control.

[0041] The wastewater pools are multi-channel, with each channel connected to the wastewater pump B via a wastewater valve. This embodiment uses four channels, controlled by valves F51, F52, F53, and F54 respectively. A single monitoring system is used to monitor all the wastewater pools, reducing costs and improving efficiency.

[0042] Each of the wastewater tanks is equipped with a pump to deliver wastewater to wastewater pump B, which can be remotely measured. Wastewater pump B can be a peristaltic pump to deliver wastewater quantitatively and periodically to nitrate sensor C for detection.

[0043] Furthermore, when the sewage pump B delivers sewage, the clean water valve F4, the air compressor valve F1, and the discharge valve F3 are closed, allowing the sewage to flow into the sensor mounting connector J, and the nitrate sensor C to detect the sewage.

[0044] Furthermore, when the air pressure valve F1 and the discharge valve F3 are open, the clean water valve F4 and the sewage pump B are closed, sewage is discharged from the discharge valve F3, and the airflow can clean the nitrate sensor C inside the sensor mounting connector J.

[0045] When the air pressure valve F1 and the discharge valve F3 are closed, the water in the water purification tank can enter the sensor mounting joint J through the water purification valve F4 and soak the nitrate sensor C.

[0046] Apart from the air compressor, water purification tank, and wastewater treatment tank, the monitoring system is installed in the same enclosure. It can be powered by rechargeable batteries or directly connected to mains power.

[0047] To reduce costs, the water purification tank is located at a high position, allowing it to flow into the sensor mounting connector J using its own pressure.

[0048] Wastewater treatment ponds typically have wastewater treatment functions, but whether the treated wastewater meets the standards needs to be tested by this monitoring system.

[0049] The control process of this utility model is as follows:

[0050] Under normal conditions, the water purification valve F4 is open and the discharge valve F3 is closed. The purified water, located at a higher position, is fed into the sensor mounting connector J by its own weight from the bottom input terminal J1, immersing the nitrate sensor C in the purified water. During detection, the water purification valve F4 is closed, and the wastewater pump B quantitatively delivers a selected wastewater stream to the input terminal J1 of the sensor mounting connector J. After detection by the nitrate sensor C, the result is output from the output terminal J2 above the sensor mounting connector J. The detection result of the nitrate sensor C is sent to the PLC control module for storage and processing. After detection is complete, the discharge valve F3 opens to discharge the wastewater from the sensor mounting connector J. Then, the air compressor valve F1 opens, and compressed air flows through the airflow input terminal J3 of the sensor mounting connector J to clean the nitrate sensor C. After cleaning, the air compressor valve F1 closes, the discharge valve F3 closes, and the water purification valve F4 opens, allowing purified water to re-enter for cleaning, starting the next cycle.

Claims

1. A nitrate and nitrogen monitoring system for marine aquaculture, characterized in that, include: A flow-through sensor mounting connector J is provided to fix the nitrate sensor C, and a discharge port J2 is provided on the top of the sensor mounting connector J; Sewage pump B has its input end connected to the sewage tank and its output end connected to the input end J1 of the sensor mounting connector J. The air compressor is connected to the air inlet J3 of the sensor mounting joint J via the air compressor valve F1; The discharge valve F3 has its input end connected to the input end J1 at the bottom of the sensor mounting connector J; The water purification valve F4 has its input end connected to the water purification tank and its output end connected to the input end J1 of the sensor mounting connector J. The controller is electrically connected to the nitrate sensor C and each valve.

2. The nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1, characterized in that, The controller includes: The system consists of a PLC control module, an E+H meter, and a human-machine interface. The PLC control module is connected to the E+H meter via a serial port and to the human-machine interface via a TPC interface. The PLC control module is electrically connected to each valve. The E+H meter is electrically connected to the nitrate and nitrogen sensor C. The E+H meter is a multi-parameter, multi-channel transmitter CM442.

3. A nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1 or 2, characterized in that, The sewage tanks are multi-channel, and each sewage tank is connected to the sewage pump B via a sewage valve.

4. The nitrate and nitrogen monitoring system for marine aquaculture as described in claim 3, characterized in that, Each of the sewage tanks is equipped with a water pump, which can send the sewage in the sewage tank to sewage pump B.

5. A nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1 or 2, characterized in that, When the sewage pump B delivers sewage, the clean water valve F4, the air compressor valve F1, and the discharge valve F3 are closed, allowing the sewage to flow into the sensor mounting connector J, and the nitrate sensor C to detect the sewage.

6. A nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1 or 2, characterized in that, When the air compressor valve F1 and the discharge valve F3 are open, the clean water valve F4 and the sewage pump B are closed, and the sewage is discharged from the discharge valve F3. The airflow can clean the nitrate sensor C in the sensor mounting connector J.

7. A nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1 or 2, characterized in that, When the air pressure valve F1 and the discharge valve F3 are closed, the water in the water purification tank can enter the sensor mounting joint J through the water purification valve F4 and soak the nitrate sensor C.

8. A nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1 or 2, characterized in that, The sewage pump B is a peristaltic pump.

9. A nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1 or 2, characterized in that, In addition to the air compressor, water purification tank, and sewage tank, the monitoring system is installed in the same enclosure.

10. A nitrate and nitrogen monitoring system for marine aquaculture as described in claim 1 or 2, characterized in that, The water purification tank is located at a high position and can flow into the sensor mounting connector J using its own pressure.

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