Distributed acquisition and centralized detection water quality detection system and method

Abstract

The invention provides a distributed acquisition and centralized detection water quality detection system and method. The system comprises a probe groove, a sampling pipeline, an enrichment device, a vacuum pump, a water quality probe and a controller, a plurality of sampling branches are arranged on the sampling pipeline at intervals, one sampling branch corresponds to one culture pond, and a water absorption electromagnetic valve is arranged on the sampling branch; the vacuum pump is provided with a negative pressure container, the sampling pipeline is connected with the negative pressure container, the negative pressure container is further connected with a water outlet pipeline, the water outlet pipeline is arranged above the enrichment device, the water outlet pipeline is provided with a corresponding water outlet branch above the enrichment device, and the water outlet branch is provided with an enrichment device electromagnetic valve; the enrichers are arranged above the probe groove side by side, the water quality probe is mounted in the center of the probe groove, and a ditch and a main drainage electromagnetic valve are arranged at the bottom of the probe groove; and the water absorption electromagnetic valve, the enrichment device electromagnetic valve, the main drainage electromagnetic valve, the vacuum pump and the water quality probe are all electrically connected with the controller and are controlled by the controller. According to the invention, low-cost and high-efficiency water quality detection of multiple culture ponds can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of water quality detection, and in particular to a water quality detection system and method for distributed collection and centralized detection. Background Art

[0002] Aquaculture organisms such as fish and shrimps need oxygen dissolved in water for their respiration. Water quality testing can monitor the amount of dissolved oxygen in water in a timely manner. For example, the dissolved oxygen level suitable for most freshwater fish is around 5-8 mg / L. When the dissolved oxygen level is lower than 2 mg / L, fish will float, and a long period of low dissolved oxygen will cause fish to suffocate and die. The osmotic pressure regulation of aquatic organisms also depends on the stability of water quality. Appropriate salinity is essential for crustaceans such as shrimps and crabs. Poor water quality is an important factor in causing aquatic diseases. Many pathogens such as bacteria, viruses and parasites are easy to breed and spread in an environment with deteriorating water quality. If aquaculture farms do not conduct water quality testing, they may cause pollution of aquaculture wastewater due to excessive feeding, abuse of drugs and other behaviors. Through water quality testing, the inputs in the aquaculture process can be reasonably controlled, while reducing the discharge of pollutants and protecting the surrounding water environment.

[0003] At present, water quality testing equipment is relatively expensive, and it takes a lot of money to buy high-precision water quality testing equipment. For example, a professional multi-parameter water quality analyzer can detect multiple key indicators such as dissolved oxygen, pH value, conductivity, ammonia nitrogen, nitrite, etc., and the price may range from tens of thousands to hundreds of thousands of yuan. In addition to basic testing equipment, some more advanced equipment, such as instruments for detecting heavy metal content and microbial community structure in water, are more expensive. These devices are very important for ensuring the quality and safety of aquatic products, but the high price makes many farms reluctant to buy them. In short, one testing device is not enough to cope with the numerous breeding ponds in the farm. For this reason, it is necessary to study a low-cost, high-efficiency water quality testing system so that one set of testing equipment can detect more breeding ponds and improve the detection efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a water quality detection system and method for distributed collection and centralized detection, so as to overcome the shortcomings of existing water quality detection equipment, such as high cost and low detection efficiency.

[0005] First aspect

[0006] The present invention provides a water quality detection system for distributed collection and centralized detection, comprising a probe slot, at least one sampling pipeline, a plurality of enrichers, a vacuum pump, a plurality of water quality probes and a controller;

[0007] A plurality of sampling branches are arranged at intervals on each of the sampling pipes, each sampling branch is connected to a breeding pond in a one-to-one correspondence, and is used to collect water in the upstream breeding pond, and each sampling branch is provided with a water suction electromagnetic valve;

[0008] The vacuum pump is provided with a negative pressure container, the sampling pipe is connected to the water inlet of the negative pressure container, the water outlet of the negative pressure container is connected to a water outlet pipe, the water outlet pipe is arranged above the enricher, and the water outlet pipe is provided with a corresponding water outlet branch at a position above each enricher, and each of the water outlet branches is provided with an enricher solenoid valve;

[0009] A plurality of the enrichers are arranged side by side above the probe slot, a plurality of the water quality probes are installed at the center of the probe slot, a ditch and a main drainage solenoid valve connected to the ditch are provided at the bottom of the probe slot, and an overflow port for discharging excess water samples is provided on the probe slot;

[0010] The water absorption solenoid valve, the enrichment device solenoid valve, the main drainage solenoid valve, the vacuum pump, and the water quality probe are all electrically connected to the controller and controlled by the controller.

[0011] Furthermore, the water quality probe includes a water temperature sensor, a pH sensor, an ammonia nitrogen sensor, a nitrite sensor, a dissolved oxygen sensor, a conductivity sensor and a salinity sensor.

[0012] Furthermore, the enricher includes a funnel-shaped long groove shell, three filter boxes are arranged in the shell, and the three filter boxes are spliced ​​in sequence to form a multi-layer stepped shape. Each filter box is provided with an arc-shaped filter cotton, and the filter cotton is fixed in the filter box by a fixing block on the inner wall of the filter box.

[0013] Furthermore, the system also includes a clean water tank and a clean water pump, the clean water tank is connected to the clean water pump, and the clean water pump is respectively connected to the sampling pipe and the probe slot through pipes, wherein the pipe connected to the sampling pipe is provided with a pipe cleaning solenoid valve, the water outlet pipe is provided with a drain port, and the drain port is provided with a pipe drainage solenoid valve, wherein the pipe connected to the probe slot is provided with a probe cleaning solenoid valve, the clean water pump, the pipe cleaning solenoid valve, the pipe drainage solenoid valve and the probe cleaning solenoid valve are respectively electrically connected to the controller and controlled by the controller.

[0014] Furthermore, a drainage column and a drainage side column are provided in the probe groove. The drainage side column is arranged on the inner wall of the probe groove corresponding to the position of the water quality probe. The water quality probe and the drainage column are arranged at intervals, so that when the cleaning water pump is started, a flow vortex is formed around each water quality probe.

[0015] Furthermore, the negative pressure container is a rectangular container, the top of the negative pressure container is connected to the vacuum pump through a pipeline, the water inlet of the negative pressure container is arranged on the side wall, and the water outlet of the negative pressure container is arranged at the bottom.

[0016] Furthermore, a liquid level switch is provided on the inner wall of the negative pressure container, which is used to open the corresponding enricher solenoid valve when it is detected that the vacuum pump has pumped water to a certain water level.

[0017] Second aspect

[0018] The present invention provides a water quality detection method for distributed collection and centralized detection, using the water quality detection system described in the first aspect, and the method comprises the following steps:

[0019] Step S1, check that all equipment and probes are in normal working condition and the water level in the clean water tank is normal;

[0020] Step S2, open the pipeline cleaning solenoid valve and the pipeline drainage solenoid valve, start the cleaning water pump, and clean the pipeline;

[0021] Step S3, close the cleaning water pump, the pipeline cleaning solenoid valve and the pipeline drainage solenoid valve, open the water suction solenoid valve and the vacuum pump corresponding to the aquaculture pond to be tested, and start the enrichment device solenoid valve after the water sample reaches a certain height of the negative pressure container to transport the water sample to the probe slot;

[0022] Step S4: After the water sample is stable in the probe slot, start the water quality probe for detection, and record the data detected by the water quality probe to evaluate the water quality of the corresponding breeding pond;

[0023] Step S5: After the detection is completed, the vacuum pump, the corresponding water absorption solenoid valve and the corresponding enrichment device solenoid valve are turned off, and the main drainage solenoid valve is opened to discharge the water sample in the probe slot;

[0024] Step S6, close the main drainage solenoid valve, start the cleaning water pump and the probe cleaning solenoid valve, clean the probe slot and the probe, and after cleaning, close the cleaning water pump and the probe cleaning solenoid valve, open the main drainage solenoid valve, and drain the water;

[0025] Step S7: After all operations are completed, the system is reset to ensure that all devices are in a safe state.

[0026] Furthermore, the method also includes periodically removing the filter cotton from the enricher, washing the retained matter on the filter cotton with a corresponding washing liquid, and performing molecular biology detection.

[0027] The advantages of the present invention are as follows: water samples are collected from the aquaculture pond to be tested through a vacuum pump with a negative pressure container and distributed pipelines, and then tested through a probe slot, and parasites are regularly tested by designing an enricher to achieve low-cost centralized testing, and pipeline and equipment cleaning is performed before and after each use to improve detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with embodiments with reference to the accompanying drawings.

[0029] Figure 1 The present invention is a schematic structural diagram of a water quality detection system for distributed collection and centralized detection.

[0030] Figure 2 This is a schematic diagram of the internal three-dimensional structure of an enricher of a water quality detection system for distributed collection and centralized detection according to the present invention.

[0031] Figure 3 It is a side view of the assembly of each filter box in the enricher of the present invention.

[0032] Figure 4 It is a schematic diagram of the structure of the probe slot in a specific embodiment of the present invention.

[0033] Figure 5 The present invention is a flowchart for executing a water quality detection method for distributed collection and centralized detection.

[0034] Description of Figure Numbers:

[0035] 1. Probe slot, 2. Sampling pipeline, 3. Enricher, 31. Shell, 32. Filter cotton, 33. Filter box, 34. Fixed block, 4. Vacuum pump, 5. Water quality probe, 6. Controller, 7. Sampling branch, 8. Water suction solenoid valve, 9. Negative pressure container, 10. Water outlet pipeline, 11. Water outlet branch, 12. Enricher solenoid valve, 13. Main drain solenoid valve, 14. Clean water tank, 151. Pipeline cleaning solenoid valve, 152. Probe cleaning solenoid valve, 16. Pipeline drain solenoid valve, 17. Clean water pump, 18. Drainage column, 19. Drainage side column. DETAILED DESCRIPTION

[0036] Embodiment 1

[0037] like Figure 1 As shown, a water quality detection system for distributed collection and centralized detection of the present invention comprises a probe slot 1, at least one sampling pipeline 2, a plurality of enrichers 3, a vacuum pump 4, a plurality of water quality probes 5 and a controller 6;

[0038] A plurality of sampling branches 7 are arranged at intervals on each of the sampling pipes 2. Each sampling branch 7 is connected to a breeding pond (A-E) one by one and is used to collect water in the upstream breeding pond. Each sampling branch 7 is provided with a water suction electromagnetic valve 8.

[0039] A negative pressure container 9 is provided on the vacuum pump 4, the sampling pipe 2 is connected to the water inlet of the negative pressure container 9, the water outlet of the negative pressure container 9 is connected to an outlet pipe 10, the outlet pipe 10 is arranged above the enricher 3, and the outlet pipe 10 is provided with a corresponding outlet branch 11 above each enricher 3, and each outlet branch 11 is provided with an enricher solenoid valve 12; the enrichers (A~E) are arranged in a one-to-one correspondence with the breeding ponds (A~E).

[0040] A plurality of the enrichers 3 are arranged side by side above the probe slot 1, a plurality of the water quality probes 5 are installed at the center of the probe slot 1, a ditch and a main drainage solenoid valve 13 connected to the ditch are provided at the bottom of the probe slot 1, and an overflow port for discharging excess water samples is provided on the probe slot 1;

[0041] The water absorption solenoid valve 8 , the enrichment device solenoid valve 12 , the main drainage solenoid valve 13 , the vacuum pump 4 , and the water quality probe 5 are all electrically connected to the controller 6 and controlled by the controller 6 .

[0042] Preferably, the water quality probe 5 includes a water temperature sensor, a pH sensor, an ammonia nitrogen sensor, a nitrite sensor, a dissolved oxygen sensor, a conductivity sensor and a salinity sensor.

[0043] Better, such as Figure 2 and Figure 3 As shown, the enricher 3 includes a funnel-shaped long groove housing 31, and three filter boxes 33 are arranged in the housing 31. The three filter boxes 33 are sequentially spliced ​​to form a multi-layer stepped shape. Each filter box 33 is provided with an arc-shaped filter cotton 32, and the filter cotton 32 is fixed in the filter box 33 through a fixing block 34 on the inner wall of the filter box 33. The filter boxes are engaged with each other through corresponding slots. The top filter box is placed with 200 mesh filter cotton, the middle filter box is placed with 400 mesh filter cotton, and the bottom filter box is placed with 800 mesh filter cotton. The filter cotton is collected regularly for molecular biology detection.

[0044] Preferably, the system also includes a clean water tank 14 and a clean water pump 17, wherein the clean water tank 14 is connected to the clean water pump 17, and the clean water pump 17 is respectively connected to the sampling pipe 2 and the probe slot 1 through pipes, wherein a pipe cleaning solenoid valve 15 is provided on the pipe connected to the sampling pipe 2, and a drain port is provided on the water outlet pipe 10, and a pipe drainage solenoid valve 16 is provided on the drain port, wherein a probe cleaning solenoid valve 20 is provided on the pipe connected to the probe slot 1, and the clean water pump 17, the pipe cleaning solenoid valve 15, the pipe drainage solenoid valve 16 and the probe cleaning solenoid valve 20 are respectively electrically connected to the controller 6 and controlled by the controller.

[0045] Better, such as Figure 4 As shown, the probe slot 1 is provided with a drainage column 18 and a drainage side column 19. The drainage side column 19 is arranged on the inner wall of the probe slot 1 corresponding to the position of the water quality probe 5. The water quality probe 5 and the drainage column 18 are arranged at intervals, so that when cleaning the probe slot, a flow vortex is formed around each water quality probe, thereby enhancing the cleaning effect of the water quality probe.

[0046] Preferably, the negative pressure container 9 is a rectangular container, the top of the negative pressure container 9 is connected to the vacuum pump 4 through a pipeline, the water inlet of the negative pressure container 9 is arranged on the side wall, and the water outlet of the negative pressure container is arranged at the bottom.

[0047] Preferably, a liquid level switch (not shown) is provided on the inner wall of the negative pressure container, and the liquid level switch is connected to the controller and is used to open the corresponding enricher solenoid valve when it is detected that the vacuum pump has pumped water to a certain water level.

[0048] Embodiment 2

[0049] like Figure 5 As shown, a water quality detection method for distributed collection and centralized detection of the present invention adopts the water quality detection system described above, and the method comprises the following steps:

[0050] Step S1, check that all equipment and probes are in normal working condition and the water level in the clean water tank is normal;

[0051] Step S2, open the pipeline cleaning solenoid valve and the pipeline drainage solenoid valve, start the cleaning water pump, and clean the pipeline;

[0052] Step S3, close the cleaning water pump, the pipeline cleaning solenoid valve and the pipeline drainage solenoid valve, open the water suction solenoid valve and the vacuum pump corresponding to the aquaculture pond to be tested, and start the enrichment device solenoid valve after the water sample reaches a certain height of the negative pressure container to transport the water sample to the probe slot;

[0053] Step S4: After the water sample is stable in the probe slot, the water quality probe is started for detection, and the data detected by the water quality probe is recorded for evaluating the water quality of the corresponding breeding pond. During the water quality detection process, the water sample is kept flowing into the probe slot, and the excess water sample is discharged from the overflow port;

[0054] Step S5: After the detection is completed, the vacuum pump, the corresponding water absorption solenoid valve and the corresponding enrichment device solenoid valve are turned off, and the main drainage solenoid valve is opened to discharge the water sample in the probe slot;

[0055] Step S6, close the main drainage solenoid valve, start the cleaning water pump and the probe cleaning solenoid valve, clean the probe slot and the probe, and after cleaning, close the cleaning water pump and the probe cleaning solenoid valve, open the main drainage solenoid valve, and drain the water;

[0056] Step S7: After all operations are completed, the system is reset to ensure that all devices are in a safe state.

[0057] Preferably, the method further comprises periodically removing the filter cotton from the enricher, washing the intercepted matter on the filter cotton with a corresponding washing liquid, and performing molecular biological detection, so as to understand the situation of parasites in the water body.

[0058] For example, when it is necessary to collect water samples from aquaculture pond A for water quality testing, the corresponding working states of the equipment can be represented by the following Table 1:

[0059] Table 1

[0060]

[0061] In summary, the present invention designs a vacuum pump with a negative pressure container and distributed pipelines to collect separate water samples from the breeding ponds to be tested, and then tests them by sharing a probe slot. It also designs enrichers corresponding to the breeding ponds to achieve regular testing of parasites in the corresponding breeding ponds, and sets pipeline and probe cleaning methods to perform cleaning operations before and after testing, thereby improving detection accuracy and achieving low-cost and high-efficiency water quality testing.

[0062] Although the specific implementation modes of the present invention are described above, those skilled in the art should understand that the specific implementation modes described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A water quality detection system for distributed collection and centralized detection, characterized in that: It includes a probe slot, at least one sampling pipeline, a plurality of enrichers, a vacuum pump, a plurality of water quality probes and a controller; A plurality of sampling branches are arranged at intervals on each of the sampling pipes, each sampling branch is connected to a breeding pond in a one-to-one correspondence, and is used to collect water in the upstream breeding pond, and each sampling branch is provided with a water suction electromagnetic valve; The vacuum pump is provided with a negative pressure container, the sampling pipe is connected to the water inlet of the negative pressure container, the water outlet of the negative pressure container is connected to a water outlet pipe, the water outlet pipe is arranged above the enricher, and the water outlet pipe is provided with a corresponding water outlet branch at a position above each enricher, and each of the water outlet branches is provided with an enricher solenoid valve; A plurality of the enrichers are arranged side by side above the probe slot, a plurality of the water quality probes are installed at the center of the probe slot, a ditch and a main drainage solenoid valve connected to the ditch are provided at the bottom of the probe slot, and an overflow port for discharging excess water samples is provided on the probe slot; The water absorption solenoid valve, the enrichment device solenoid valve, the main drainage solenoid valve, the vacuum pump, and the water quality probe are all electrically connected to the controller and controlled by the controller.

2. A water quality detection system for distributed collection and centralized detection as claimed in claim 1, characterized in that: The water quality probe includes a water temperature sensor, a pH sensor, an ammonia nitrogen sensor, a nitrite sensor, a dissolved oxygen sensor, a conductivity sensor and a salinity sensor.

3. A distributed collection and centralized detection water quality detection system as claimed in claim 1, characterized in that: The enricher includes a funnel-shaped long groove shell, three filter boxes are arranged in the shell, and the three filter boxes are spliced ​​in sequence to form a multi-layer stepped shape. Each filter box is provided with an arc-shaped filter cotton, and the filter cotton is fixed in the filter box through a fixing block on the inner wall of the filter box.

4. A distributed collection and centralized detection water quality detection system as claimed in claim 1, characterized in that: The system also includes a clean water tank and a clean water pump, wherein the clean water tank is connected to the clean water pump, and the clean water pump is respectively connected to the sampling pipe and the probe slot through pipes, wherein a pipe cleaning solenoid valve is provided on the pipe connected to the sampling pipe, a drain port is provided on the water outlet pipe, and a pipe drainage solenoid valve is provided on the drain port, wherein a probe cleaning solenoid valve is provided on the pipe connected to the probe slot, and the clean water pump, the pipe cleaning solenoid valve, the pipe drainage solenoid valve and the probe cleaning solenoid valve are respectively electrically connected to a controller and controlled by the controller.

5. A distributed collection and centralized detection water quality detection system as claimed in claim 1, characterized in that: A drainage column and a drainage side column are provided in the probe groove. The drainage side column is arranged on the inner wall of the probe groove corresponding to the position of the water quality probe. The water quality probe and the drainage column are arranged at intervals, so that when the cleaning water pump is started, a flow vortex is formed around each water quality probe.

6. A distributed collection and centralized detection water quality detection system as claimed in claim 1, characterized in that: The negative pressure container is a rectangular container, the top of the negative pressure container is connected to the vacuum pump through a pipeline, the water inlet of the negative pressure container is arranged on the side wall, and the water outlet of the negative pressure container is arranged at the bottom.

7. A water quality detection system for distributed collection and centralized detection as claimed in claim 1, characterized in that: A liquid level switch is provided on the inner side wall of the negative pressure container, which is used to open the corresponding enricher solenoid valve when it is detected that the vacuum pump pumps water to a certain water level.

8. A water quality detection method for distributed collection and centralized detection, characterized in that: Using the water quality detection system according to any one of claims 1 to 7, the method comprises the following steps: Step S1, check that all equipment and probes are in normal working condition and the water level in the clean water tank is normal; Step S2, open the pipeline cleaning solenoid valve and the pipeline drainage solenoid valve, start the cleaning water pump, and clean the pipeline; Step S3, close the cleaning water pump, the pipeline cleaning solenoid valve and the pipeline drainage solenoid valve, open the water suction solenoid valve and the vacuum pump corresponding to the aquaculture pond to be tested, and start the enrichment device solenoid valve after the water sample reaches a certain height of the negative pressure container to transport the water sample to the probe slot; Step S4: After the water sample is stable in the probe slot, start the water quality probe for detection, and record the data detected by the water quality probe to evaluate the water quality of the corresponding breeding pond; Step S5: After the detection is completed, the vacuum pump, the corresponding water absorption solenoid valve and the corresponding enrichment device solenoid valve are turned off, and the main drainage solenoid valve is opened to discharge the water sample in the probe slot; Step S6, close the main drainage solenoid valve, start the cleaning water pump and the probe cleaning solenoid valve, clean the probe slot and the probe, and after cleaning, close the cleaning water pump and the probe cleaning solenoid valve, open the main drainage solenoid valve, and drain the water; Step S7: After all operations are completed, the system is reset to ensure that all devices are in a safe state.

9. A water quality detection method for distributed collection and centralized detection as claimed in claim 8, characterized in that: The method further comprises periodically removing the filter cotton from the enricher, washing the intercepted matter on the filter cotton with a corresponding washing liquid, and performing molecular biology detection.

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