CN207730675U - Boat-carrying or the automatic detection of bank base water nutrition and prior-warning device - Google Patents

Abstract

The utility model discloses a kind of boat-carrying or bank base water nutrition detection and prior-warning devices, including equipment platform, water acquisition pump, settling tank, backwash filter, compression pump, detection cell one, detection cell two, nutritive salt detecting instrument, multi-parameter water quality sensor, data transmission and early warning system automatically；Nutritive salt detecting instrument is suspended on the center of detection cell one by instrument supporting rack；Multi-parameter water quality sensor is suspended on two inner hub location of detection cell by instrument supporting rack；Each detecting instrument, in detection cell bosom position suitable for reading, carries out continuous monitoring for a long time, and be transmitted to client server by data transmission and warning module by detecting instrument cradle hangs.Warning module makes evaluation by being compared, analyzing to detection data, to monitoring body eutrophication, red tide, wawter bloom, when beyond normal range (NR) and alarms.

Description

Shipborne or shore-based water body nutrient automatic detection and early warning device

technical field

The utility model relates to the field of water body detection, in particular to a ship-borne or shore-based water body nutrient salt automatic detection and early warning device.

Background technique

Nutrients are the material basis for the growth of phytoplankton. With the intensification of industrial and agricultural production and domestic wastewater discharge, and the strengthening of soil weathering in watersheds, nitrates, ammonium salts, active phosphates, silicates, etc. in natural water bodies such as oceans, lakes, and rivers The input of nutrients is intensified, and various ecological disasters such as eutrophication, harmful red tides, and water hypoxia occur frequently. Therefore, there is an urgent need for automatic real-time monitoring and early warning of nutrients in natural water bodies.

At present, the following methods are mainly used for the detection of nutrients in natural water bodies: on-site sampling ship-based or shore-based laboratory analysis and detection, nutrient sensor water in-situ detection, ship-borne or shore-based online instrument detection.

Manual on-site sampling laboratory analysis and detection methods, analysis of independent samples, limited by sampling methods and equipment, requires high labor costs and time consumption.

The in-situ detection of nutrient salt sensors can obtain in-situ continuous data of natural water bodies, but the long-term work has serious biological adhesion, which requires manual cleaning at regular intervals, and the reagents or filtering devices need to be replaced regularly, so the cost of equipment and regular maintenance is relatively high.

The ship-borne or shore-based on-line instrument detection method is a method of taking the water sample out of the original position and automatically detecting the instrument after pretreatment. This method has higher real-time data than the on-site sampling analysis method and saves manpower and time. Although regular maintenance is required, the Maintenance costs are lower than sensor-in-situ detection methods, and data quality is easier to control.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a ship-borne or shore-based water body nutrient salt automatic detection and early warning device.

The ship-borne or shore-based water nutrient automatic detection and early warning device of the present invention includes an equipment platform, a water pump, a sedimentation tank, a backwash filter, a pressure pump, a detection pool 1, a detection pool 2, a nutrient salt detection instrument, and a multi-parameter Water quality sensor, data transmission and early warning module;

The inlet pipe of the water collection pump goes deep under the water surface to be tested; the outlet pipe of the water collection pump is divided into two paths through the water inlet tee, one path is connected to the sedimentation tank; the other path is connected to the second detection pool; The water outlet of the backwash filter is connected to the detection tank 1 through a pressure pump; the nutrient salt detection instrument is suspended at the center of the detection tank 1 through the instrument support frame; the multi-parameter water quality sensor is suspended at the center of the detection tank 2 through the instrument support frame; The data transmission and early warning modules are respectively connected with the nutrient salt detection instrument and the multi-parameter water quality sensor; the water collection pump, the sedimentation tank, the backwash filter, the pressure pump, the first detection pool and the second detection pool are all set on the equipment platform.

Preferably, the settling tank is a cylinder at the upper end and a funnel-shaped structure at the lower end, a solenoid valve is provided at the bottom of the funnel, and an opening is provided on both sides of the cylinder, wherein the opening connected with the water pump is the water inlet one, located at the settlement On the upper side of the pool, the other side is the water outlet 1, which is located at the lower part of the sedimentation tank; the second side of the water outlet is installed with a solenoid valve 2, and there is a circle of round pipes with holes at the connection between the inner wall of the sedimentation tank and the water inlet 1, and its multiple openings are located The bottom of the circular tube is in a circle and is biased toward the inner side of the cylinder; the outside of the settling tank is provided with an annular groove-shaped anti-overflow ring that is close to the outer diameter of the settling tank, and an overflow conduit is set at the bottom of the groove; there is an instrument support frame above the settling tank, The electric impeller is installed on the instrument support frame.

Preferably, the structure of the detection pool 2 and the detection pool 1 is the same, both of which are cylindrical at the upper end and funnel-shaped at the lower end. An annular groove-shaped anti-overflow ring with a diameter, and an overflow conduit is arranged at the bottom of the groove.

Preferably, the backwash filter includes a bottom cover, a cylindrical body, and a filter element. The side wall of the bottom cover is provided with a water inlet 2 and a water outlet 2. The water inlet 2 is connected to the settling tank, and the water outlet 2 is connected to the pressure pump. There is solenoid valve three, which is the sewage outlet for reverse flushing; the filter element is located inside the cylinder; the second water outlet is connected to the inner space of the filter element through pipelines.

Preferably, the water inlet of the water inlet pipe is provided with a water inlet filter.

The nutrient data detection adopts a multi-channel online nutrient monitoring instrument. The instrument controls the internal piston movement according to the set program, sucks the water sample into the instrument, automatically adds reagents according to the national standard method, and performs the color reaction of chemical reagents. Other water quality parameters are measured by multi-parameter water quality sensors, including temperature, salinity, dissolved oxygen, turbidity, chlorophyll, and chemical oxygen demand. Monitor and transmit to the user server through the data transmission and early warning module. The early warning module compares and analyzes the detection data, evaluates the eutrophication, red tide, and algal bloom of the monitored water body, and sends an alarm when it exceeds the normal range.

Description of drawings

Fig. 1 Structural schematic diagram of nutrient salt automatic detection device;

The schematic diagram of the structure of the sedimentation tank in Fig. 2;

Figure 3 Schematic diagram of the cross-section of the settling tank;

Figure 4 Schematic diagram of backwash filter structure;

Fig. 5 is a schematic diagram of the structure of the detection pool;

Figure 6 Schematic diagram of monitoring and early warning process;

In the figure: 1 equipment platform, 2 water collection pump, 3 sedimentation tank, 4 backwash filter, 5 pressure pump, 6 detection tank 1, 7 detection tank 2, 8 nutrient salt detection instrument, 9 multi-parameter water quality sensor, 10 data transmission and early warning module, 11 universal wheel, 12 water inlet filter, 13 water pipe, 14 water inlet tee, 15 water inlet 1, 16 water outlet 1, 17 solenoid valve 1, 18 solenoid valve 2, 19 electric impeller, 20 belt Hole round pipe, 21 Anti-overflow ring, 22 Overflow conduit, 23 Instrument support frame, 24 Bottom cover, 25 Filter element, 26 Cylinder body, 27 Solenoid valve 3, 28 Water inlet 2, 29 Water outlet 2, 30 Three-way solenoid valve 1. 31 three-way solenoid valve 2.

Detailed ways

As shown in Figures 1-5, the ship-borne or shore-based water nutrient automatic detection and early warning device of the present invention includes an equipment platform 1, a water collection pump 2, a sedimentation tank 3, a backwash filter 4, a pressure pump 5, and a detection tank 1 6. Detection pool 2 7. Nutrient salt detection instrument 8, multi-parameter water quality sensor 9, data transmission and early warning module 10; equipment platform 1 adopts a frame-type workbench structure, which is used to install and fix other components of the entire detection device. Universal wheels are installed for easy moving and handling;

The water inlet pipe 13 of the water collection pump 2 goes deep under the water surface to be detected; the outlet pipe of the water collection pump 2 is divided into two roads through the water inlet tee 14, and one road is connected with the sedimentation tank 3; the other road is connected with the detection tank 2 7; the sedimentation tank 3 The water outlet is connected to the backwash filter 4; the water outlet of the backwash filter 4 is connected to the detection tank 1 through the pressure pump 5; the nutrient salt detection instrument 8 is suspended in the center of the detection tank 6 through the instrument support frame 23; the multi-parameter water quality The sensor 9 is suspended in the central position of the detection pool 2 7 through the instrument support frame 23; the data transmission and early warning module 10 is connected to the nutrient salt detection instrument 8 and the multi-parameter water quality sensor 9 respectively; The flushing filter 4 , the pressure pump 5 , the first detection pool 6 and the second detection pool 7 are all arranged on the equipment platform 1 .

Preferably, the settling tank 3 is a cylinder at the upper end and a funnel-like structure at the lower end, a solenoid valve-17 is provided at the bottom of the funnel, and an opening is provided on both sides of the cylinder, wherein the opening connected with the water pump is the water inlet-15 , located at the upper mouth of the sedimentation tank, and the other side is the water outlet 16, which is located at the lower position of the sedimentation tank; the solenoid valve 2 18 is installed at the water outlet 16, and there is a circle of circular pipes with holes on the inner wall of the sedimentation tank connected to the water inlet 15 , its multiple openings are located around the bottom of the circular tube and are biased toward the inner side of the cylinder; the outer side of the settling tank is provided with an annular groove-shaped anti-overflow ring that is close to the outer diameter of the settling tank, and an overflow conduit is set at the bottom of the groove; The side has an instrument support frame 23, and electric impeller 19 is installed on the instrument support frame.

Preferably, the detection pool 2 7 and the detection pool 1 6 have the same structure, both of which have a cylinder at the upper end and a funnel-shaped structure at the lower end. The bottom of the funnel is a three-way solenoid valve 1 30. An annular groove-shaped anti-overflow ring 21 attached to the outer diameter of the detection pool, and an overflow conduit 22 is arranged at the bottom of the groove.

Preferably, the backwash filter includes a bottom cover 24, a cylinder body 26, and a filter element 25. The side wall of the bottom cover is provided with a water inlet 28 and a water outlet 29. The water inlet 2 is connected to the settling tank, and the water outlet 2 is connected to the pressure The bottom cover of the pump 5 is provided with a solenoid valve 3 27, which is a reverse flushing sewage outlet; the filter element 25 is located inside the cylinder 26; the water outlet 2 29 is connected to the inner space of the filter element 25 through a pipeline.

Preferably, the water inlet of the water inlet pipe 13 is provided with a water inlet filter 12 to prevent larger particles such as organisms and floating objects from entering.

As shown in Figure 6, the steps of the automatic detection and early warning method of water body nutrients of the device are as follows:

One end of the water sampling pump 2 goes deep under the water surface of oceans, lakes, rivers, etc., and the water sampling pump 2 draws the water sample to be tested out of the water surface through the water pipe 13. One way is connected with detection pool 2 7;

In the settling tank 3, the water sample enters the circular pipe with holes 20 connected with the water inlet one 15, flows out through the holes on the circular pipe with holes 20, and flows down along the inner wall of the settling tank 3. At this time, the solenoid valve two of the water outlet one 16 18 is in the closed state, the solenoid valve one 17 at the bottom of the funnel is in the open state, and the water sample flows out through the perforated circular pipe 20 to wash the inner wall of the sedimentation tank 3, and flows out from the solenoid valve one 17; after finishing the washing of the sedimentation tank 3, the solenoid valve one 17 is closed, The water pump 2 continues to pump water, and the sedimentation tank 3 starts to store water. After the set time is reached, the water pump 2 stops working; the overflow water of the sedimentation tank 3 is discharged from the overflow conduit 22 to prevent the water level of the sedimentation tank 3 from overflowing to the equipment platform 1. After the predetermined settling time is reached, the particles settle to the bottom of the settling tank 3, the solenoid valve 2 18 is opened, and the water sample flows into the backwash filter 4 through the water inlet 2 28;

The water sample flowing into the backwash filter 4 enters the cylinder 26, and flows out from the water outlet 2 29 after being filtered by the filter element 25;

The pressure pump 5 draws the water sample filtered by the filter element 25 into the detection tank 6 through the three-way solenoid valve 30, and stores the water for cleaning by the nutrient salt detection instrument 8, and stores the water until the water level does not pass the detection window of the nutrient salt detection instrument 8 Finally, it is discharged from the third channel of the three-way electromagnetic valve-30, and the nutrient salt detection instrument 8 starts to detect after the water storage is successful again, and the data transmission and early warning module 10 obtains data, and when it exceeds the normal range, it will alarm and notify the user; one detection cycle is completed Finally, the nutrient salt detection instrument 8 stops collecting data, the solenoid valve two 18 of the water outlet one 16 is closed, the electric impeller 19 inside the settling tank 3 stirs the water body containing sediment, then the solenoid valve one 17 at the bottom of the settling tank 3 is opened, and the settling tank 3 sewage discharge.

Simultaneously, the pressure pump 5 reversely draws the water sample in the detection tank-6, and the water sample enters the filter element 25 through the three-way electromagnetic valve-30, penetrates from the inside of the filter element 25 to the outside, washes out the filtering impurities outside the filter element 25, and the electromagnetic The valve two 18 is closed, the solenoid valve three 27 at the bottom of the backwash filter 4 is opened, and the backwash sewage is discharged from the solenoid valve three 27, and the water sample backwash can prevent the filter element 25 from clogging. After the backwash is completed, the detection pool one 6 The remaining water at the bottom of the funnel is emptied by the third way of the three-way solenoid valve-30;

In the detection pool 2 7, the water is firstly stored for cleaning by the water quality sensor 9, and after the water is stored until the water level does not exceed the detection window of the water quality sensor 9 with too many parameters, it is discharged from the third channel of the three-way solenoid valve 2 31, and after the water is successfully stored again The multi-parameter water quality sensor 9 starts to detect, the data transmission and early warning module 10 obtains data, and when it exceeds the normal range, it will alarm and notify the user; after a detection cycle is completed, the water sample is discharged from the three-way solenoid valve 2 31 .

The evaluation model of eutrophication in seawater adopts the eutrophication index method, and the calculation formula is:

E＝(C _COD ×C _DIN ×C _DIP ×10 ⁶ )/4500 (1)

in,

E: Eutrophication index;

C _COD : chemical oxygen demand concentration, unit is mg/L;

C _DIN : Inorganic nitrogen concentration, that is, the sum of nitrite-nitrogen (NO2-N), nitrate-nitrogen (NO3-N), ammonia-nitrogen (NH4-N), the unit is mg/L;

C _DIP : Concentration of active phosphate, in mg/L.

When E<1, the water body is in a non-eutrophic state, and the early warning module 10 does not send an alarm;

When 1≤E≤3, the water body is in mild eutrophication, and the data transmission and early warning module 10 issues a yellow mild eutrophication alarm;

When 3<E≤9, the water body is in moderate eutrophication, and the data transmission and early warning module 10 issues an orange moderate eutrophication alarm;

When E>9, the water body is in severe eutrophication, and the data transmission and early warning module 10 issues a red severe eutrophication alarm.

The evaluation of lake eutrophication adopts the mathematical model judgment method. When [chemical oxygen consumption (mg/L)×inorganic phosphorus (ppm)×inorganic nitrogen (ppm)/1500]≥l, the water body reaches eutrophication state, and the data transmission The warning module 10 issues a red eutrophication alarm.

The occurrence of red tides or algae blooms is affected by factors such as nutrients, light, temperature, salinity, dissolved oxygen, and turbidity. According to the research of Zou Jingzhong (1983), Zhang Shuizhu et al. Dissolved oxygen saturation > 110% or chlorophyll > 10mg/L is the red tide threshold. The data transmission is compared and analyzed with the early warning module 10. When the monitoring data reaches any of the thresholds, a blue early warning of red tide or algae bloom is issued.

Claims (5)

1. A ship-borne or shore-based water body nutritive salt automatic detection and early warning device is characterized by comprising an equipment platform (1), a water collecting pump (2), a sedimentation tank (3), a backwashing filter (4), a pressure pump (5), a detection tank I (6), a detection tank II (7), a nutritive salt detection instrument (8), a multi-parameter water quality sensor (9) and a data transmission and early warning module (10);

a water inlet pipe (13) of the water collecting pump (2) extends into the position below the water surface to be detected; the water outlet pipe of the water extraction pump (2) is divided into two paths through a water inlet tee joint (14), and one path is connected with the sedimentation tank (3); the other path is connected with a second detection pool (7); the water outlet of the sedimentation tank (3) is connected with a backwashing filter (4); the water outlet of the backwashing filter (4) is connected to a first detection pool (6) through a pressure pump (5); a nutrient salt detection instrument (8) is suspended at the central position of the detection pool I (6) through an instrument support frame (23); the multi-parameter water quality sensor (9) is suspended in the center of the inner part of the second detection pool (7) through an instrument support frame (23); the data transmission and early warning module (10) is respectively connected with the nutrient salt detection instrument (8) and the multi-parameter water quality sensor (9); the water collecting pump (2), the sedimentation tank (3), the backwashing filter (4), the pressure pump (5), the first detection tank (6) and the second detection tank (7) are all arranged on the equipment platform (1).

2. The automatic detection and early warning device for nutritive salt in water bodies on board or on shore according to claim 1, characterized in that the sedimentation basin (3) is of a cylindrical structure at the upper end and a funnel-shaped structure at the lower end, the bottom of the funnel is provided with a first electromagnetic valve (17), two sides of the side surface of the cylinder are respectively provided with an opening, wherein the opening connected with the water collecting pump is a first water inlet (15) and is positioned at the upper opening of the sedimentation basin, and the other side of the opening is a first water outlet (16) and is positioned at the lower position of the sedimentation basin; a second electromagnetic valve (18) is arranged at the first water outlet (16), a circle of circular pipe with holes is arranged at the joint of the inner wall of the sedimentation tank and the first water inlet (15), and a plurality of openings of the circular pipe are positioned at the bottom of the circular pipe and are deviated to the inner side direction of the cylinder; an annular groove-shaped anti-overflow ring (21) tightly attached to the outer diameter of the sedimentation tank is arranged on the outer side of the sedimentation tank, and an overflow guide pipe (22) is arranged at the bottom of the groove; an instrument support frame (23) is arranged above the sedimentation tank, and an electric impeller (19) is arranged on the instrument support frame.

3. The automatic detection and early warning device for nutritive salt in water bodies on board or on shore as claimed in claim 2, wherein the second detection pool (7) and the first detection pool (6) have the same structure, and are both of an upper end cylinder and a lower end funnel-shaped structure, the bottom of the funnel is a three-way electromagnetic valve, the outer circle of the detection pool is provided with an annular groove-shaped anti-overflow ring (21) tightly attached to the outer diameter of the detection pool, and the bottom of the groove is provided with an overflow conduit (22).

4. The automatic detection and early warning device for nutritive salt in water bodies on board or on shore according to any one of claims 1 to 3, characterized in that the back flush filter comprises a bottom cover (24), a cylinder body (26) and a filter element (25), wherein the side wall of the bottom cover is provided with a second water inlet (28) and a second water outlet (29), the second water inlet is connected with a sedimentation tank, the second water outlet is connected with a pressure pump (5), and the bottom cover is provided with a third electromagnetic valve (27) for back flushing a sewage discharge outlet; the filter element (25) is positioned inside the cylinder body (26); the second water outlet (29) is connected with the inner space of the filter element (25) through a pipeline.

5. The automatic detection and early warning device for nutritive salt in water bodies on board or on shore as claimed in claim 1, wherein the water inlet of the water inlet pipe (13) is provided with a water inlet filter screen (12).