Water quality detection equipment based on chemical analysis technology

Abstract

The invention discloses water quality detection equipment based on a chemical analysis technology, and relates to the technical field of water quality chemical reagent detection.The water quality detection equipment comprises a detection box, an auxiliary device, a backwashing device and a reagent cabin, the detection box is connected with the auxiliary device, the backwashing device is communicated with the detection box through a pipeline, and the reagent cabin is communicated with the detection box; the auxiliary device is used for controlling the blanking amount of the reagent cabin. The detection box serves as a main installation foundation and is used for installing and fixing other devices, the reagent cabin can be arranged in the detection box, chemical reagents can be conveniently added, so that the water quality is detected, the adding content of the reagents is adjusted in real time according to the ion concentration in water through the auxiliary device, and the detection precision is improved. And the backwashing device is arranged to automatically clean the whole pipeline to be detected, so that the detection precision is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of water quality chemical reagent detection, in particular to a water quality detection device based on chemical analysis technology. Background Art

[0002] Water quality testing generally includes a variety of testing methods such as physical testing and chemical testing, which all have the same goal and are based on the basic properties of water bodies.

[0003] In recent years, in order to ensure the quality of water bodies, a large number of detection equipment have appeared on the market for real-time monitoring of polluted water quality. Since water quality testing is a continuous process, however, conventional water quality testing equipment requires a lot of manual participation during the testing process. For example, when sampling, the sampling tube needs to be inserted into the sample water body. Therefore, during the continuous testing process, the sampling tube needs to be replaced. Otherwise, the sample water remaining inside and outside the tube wall will affect the accuracy of subsequent testing. Existing water sampling devices need to rely on pretreatment mechanisms, and after processing, they are transferred to the detection equipment for testing.

[0004] In addition, after the water sample has completed sedimentation, the internal ion concentration cannot be guaranteed to be evenly distributed, and the reagent intake cannot be adjusted in real time according to the concentration of the ions to be detected. Summary of the invention

[0005] The purpose of the present invention is to provide a water quality detection device based on chemical analysis technology to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A water quality testing device based on chemical analysis technology, the water quality testing device comprises a testing box, an auxiliary device, a backwashing device and a reagent cabin, the testing box and the auxiliary device are connected, the backwashing device and the testing box pipeline are connected, the reagent cabin and the testing box are connected, and the auxiliary device is used to control the amount of material falling into the reagent cabin.

[0008] The detection box serves as the main installation basis and is used to install and fix other devices. The reagent cabin can be placed in the detection box to facilitate the addition of chemical reagents to detect water quality. Through auxiliary devices, the added reagent content is adjusted in real time according to the ion concentration in the water to improve the detection accuracy. By setting up a backwash device, the entire pipeline for detection is automatically cleaned to ensure the detection accuracy.

[0009] Furthermore, a working chamber is provided on the detection box, the auxiliary device includes a liquid pumping component and an adjustment component, the backwashing device includes a carrying box, the carrying box is placed in the working chamber, a sedimentation chamber is provided on the detection box, the carrying box is used to fix the sampling bottle, the liquid pumping component is used to pump the sample in the sampling bottle into the sedimentation chamber, an analysis chamber is provided on the detection box, a drainage channel is provided between the sedimentation chamber and the analysis chamber, and a detection chamber and an adjustment slot are provided in sequence along the sample delivery direction of the drainage channel;

[0010] The regulating component includes an electrode sheet, a liquid distribution paddle and an electromagnet. Two electrode sheets are provided. The two electrode sheets are electrically connected to two electrode columns of a control power supply to form a detection circuit. The drainage channel cuts off the regulating tank. The liquid distribution paddle is rotatably connected to the upper cavity of the regulating tank. The liquid distribution paddle is made of a magnet. The electromagnet is placed in the lower cavity of the regulating tank. The reagent cabin is connected to the upper cavity of the regulating tank.

[0011] The carrying box is installed and fixed through the working chamber. The carrying box is hollow and opened upward. When water is supplied, the sampling bottle is placed in the carrying box, and the liquid drawing component sends the sample into the sedimentation chamber through the pipeline for sedimentation. By pre-treating the sample, impurities and dirt in the water are prevented from interfering with the analysis results and affecting the detection accuracy. The water body that has been pretreated by filtration is pumped to the analysis chamber. When the water body enters the drainage channel, the water body passing through the two electrode sheets is detected by connecting to the two electrode sheets of the power supply circuit. When the ion concentration of the water body is higher, more reagents need to be added to the reaction. The higher the ion concentration, the more ions participate in the detection circuit to a point. Under the same voltage, the current of the detection circuit is greater. According to the detected ion concentration, the input current of the electromagnet is controlled, and the electromagnet and the liquid distribution paddle made of magnet material generate a force. When the water body is pumped to the drainage channel, the liquid distribution paddle is impacted, driving the liquid distribution paddle to rotate. When the liquid distribution paddle rotates, it drives the reagent connected to the upper chamber of the regulating tank to flow to the drainage channel. By controlling the current input to the electromagnet, the force between the electromagnet and the liquid distribution paddle is controlled, thereby controlling the rotation speed of the liquid distribution paddle and adjusting the reagent intake.

[0012] Further, the electromagnet is electrically connected to the detection circuit, and the input current of the electromagnet is negatively correlated with the current of the detection circuit;

[0013] When speed regulation: the facing ends of the electromagnet and the liquid distribution paddle are opposite poles.

[0014] Through the opposite magnetic poles, the electromagnet and the blades of the liquid distribution paddle are attracted to each other, so that the electromagnet hinders the rotation of the liquid distribution paddle. Through the negative correlation setting, when the ion concentration is high, the amount of reagents required to participate in the reaction increases. At this time, the current value of the detection circuit increases, and the current value of the input electromagnet decreases accordingly. The magnetic pole attraction between the electromagnet and the liquid distribution paddle is weakened. Under the impact of the water body, the instantaneous speed of the liquid distribution paddle increases, that is, the amount of chemical reagent added increases, so that the reagent input amount is adjusted in real time according to the ion concentration of the water body to improve the reaction efficiency.

[0015] Furthermore, the auxiliary device also includes a floating component, which includes a floating plate, a telescopic tube and a lifting pump. The floating plate is placed in the sedimentation chamber, the telescopic tube runs through the floating plate, the lower end of the telescopic tube is firmly connected to the floating plate, the upper end of the telescopic tube is firmly connected to the lifting pump, the lifting pump inlet is connected to the telescopic tube pipeline, and the lifting pump outlet is connected to the drainage channel.

[0016] The sedimentation chamber serves as the main pretreatment chamber. When the liquid is pumped into the chamber, the inlet is located at the lower layer of the floating plate. As the water is pumped in, the floating plate floats up under the action of buoyancy and drives the telescopic tube to contract. When the sedimentation is completed, the upper layer of the sedimentation chamber is clear liquid and the lower layer is turbid liquid. The upper clear liquid is pumped by the lifting pump and sent into the drainage channel to prevent the contaminants from entering the analysis chamber and affecting the detection accuracy. During the pumping process, the floating plate moves downward under the action of its own gravity, and the lower end of the telescopic tube can remain flush with the lower side of the floating plate to prevent crosstalk between the clear liquid and the turbid liquid.

[0017] Furthermore, the backwash device also includes a water storage tank, which is connected to the upper end of the analysis chamber by a pipeline, and the sampling bottle, the sedimentation chamber and the analysis chamber are arranged from bottom to top.

[0018] By setting up a water storage tank, after the water quality test is completed, the clean water flowing out of the water storage tank first enters the analysis chamber to flush the analysis chamber, and then enters the drainage channel to flush the drainage channel. The lower inlet and outlet of the sedimentation chamber and the analysis chamber are equipped with a shutoff valve, which is opened only when the flow path needs to be connected, and is closed when it needs to be closed to ensure that the flow path is cut off. After the drainage channel is flushed, it enters the sedimentation chamber to flush the sedimentation chamber.

[0019] Furthermore, the diameter of the delivery pipe between the sampling bottle and the sedimentation chamber is smaller than the diameter of the delivery pipe between the sedimentation chamber and the analysis chamber.

[0020] Through the different settings of the delivery pipelines, the water entering through the sampling bottle will gradually increase its flow path, with the front flow path close to the sampling bottle, which can avoid blockage of the rear flow path and affect the fluid delivery efficiency.

[0021] As an optimization, the liquid drawing component includes a liquid drawing tube and a drainage pump. The lower end of the liquid drawing tube is inserted into the sampling bottle, the drainage pump inlet is connected to the liquid drawing tube, and the drainage pump outlet is connected to the sedimentation chamber. When supplying samples, the liquid drawing tube is inserted into the sampling bottle, and the drainage pump sucks the sample into the sedimentation chamber, which is convenient for sedimentation pretreatment and ensures the accuracy of subsequent detection.

[0022] As an optimization, the liquid drawing component also includes a tube shell, which is sleeved on the outside of the connection between the liquid drawing pipe and the drainage pump, and the diameter of the tube shell gradually decreases from top to bottom. The tube shell is also connected to the drainage pump port connected to the liquid drawing pipe, and the connecting section is controlled by a stop valve. The stop valve is kept closed during pump liquid detection; when cleaning, the stop valve is opened, and the drainage pump is reversed at this time. The cleaned water flows downward from both inside and outside the liquid drawing pipe, thereby fully cleaning the liquid drawing pipe to prevent liquid residue outside the pipe from affecting the accuracy of continuity detection.

[0023] As an optimization, a waste liquid pipe is provided on the outside of the carrying box, and the waste liquid pipe is connected to the inner cavity of the carrying box. By providing the waste liquid pipe, the waste water cleaned by the pipeline can be discharged, which is convenient for continuity detection.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: when water enters the drainage channel, the water passing between the two electrode sheets is detected by connecting the two electrode sheets to the power supply circuit. When the ion concentration of the water body is higher, more reagents need to be added to the reaction. The higher the ion concentration, the more ions participate in the detection circuit to a point. Under the same voltage, the current of the detection circuit is higher. According to the detected ion concentration, the input current of the electromagnet is controlled, and the electromagnet and the liquid distribution paddle made of magnet material generate a force. When the water body is pumped to the drainage channel, the liquid distribution paddle is impacted to drive the liquid distribution paddle to rotate. When the liquid distribution paddle rotates, it drives the reagent connected to the upper cavity of the regulating tank to flow to the drainage channel. By controlling the current input to the electromagnet, the force between the electromagnet and the liquid distribution paddle is controlled. The force is exerted to control the rotation speed of the liquid distribution paddle and adjust the reagent input amount; when the ion concentration is high, the amount of reagent required to participate in the reaction increases. At this time, the current value of the detection circuit increases, and the current value of the input electromagnet decreases accordingly. The magnetic pole attraction between the electromagnet and the liquid distribution paddle weakens. Under the impact of the water body, the liquid distribution paddle increases its instantaneous speed, that is, the amount of chemical reagent added increases, so that the reagent input amount is adjusted in real time according to the ion concentration of the water body to improve the reaction efficiency; the upper clear liquid is pumped by the lifting pump and sent into the drainage channel to prevent contaminants from entering the analysis chamber and affecting the detection accuracy. During the pumping process, the float moves downward under the action of its own gravity, and the lower end of the telescopic tube can remain flush with the lower side of the float to prevent crosstalk between the clear liquid and the turbid liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the detection sealing state of the present invention;

[0027] Figure 3 It is a schematic diagram of the water sample delivery flow path of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the liquid pumping assembly of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the floating assembly of the present invention;

[0030] Figure 6 for Figure 2 A magnified view of a part of the view;

[0031] Figure 7 for Figure 2 Enlarged view of detail B of the view.

[0032] In the figure: 1. detection box; 11. working chamber; 12. sedimentation chamber; 13. analysis chamber; 14. drainage channel; 15. adjustment tank; 16. detection chamber; 2. auxiliary device; 21. liquid drawing component; 211. liquid drawing pipe; 212. drainage pump; 213. tube shell; 22. floating component; 221. floating plate; 222. telescopic tube; 223. lifting pump; 23. adjustment component; 231. electrode sheet; 232. liquid distribution paddle; 233. electromagnet; 3. backwashing device; 31. water storage tank; 32. waste liquid pipe; 33. carrying box; 4. reagent cabin; 5. sampling bottle. DETAILED DESCRIPTION

[0033] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0034] Example: Figure 1-Figure 7 As shown, the present invention provides a technical solution for water quality detection equipment based on chemical analysis technology.

[0035] A water quality testing device based on chemical analysis technology, the water quality testing device comprises a testing box 1, an auxiliary device 2, a backwashing device 3 and a reagent chamber 4, the testing box 1 is connected to the auxiliary device 2, the backwashing device 3 is connected to the testing box 1 by a pipeline, the reagent chamber 4 is connected to the testing box 1, and the auxiliary device 2 is used to control the amount of material falling into the reagent chamber 4.

[0036] The detection box 1 serves as the main installation base for installing and fixing other devices. The reagent cabin 4 can be placed in the detection box 1 to facilitate the addition of chemical reagents to detect water quality. Through the auxiliary device 2, the added content of the reagent is adjusted in real time according to the ion concentration in the water to improve the detection accuracy. By setting up the backwash device 3, the entire pipeline to be tested is automatically cleaned to ensure the detection accuracy.

[0037] Further, the detection box 1 is provided with a working chamber 11, the auxiliary device 2 includes a liquid drawing component 21 and an adjustment component 23, the backwashing device 3 includes a carrying box 33, the carrying box 33 is placed in the working chamber 11, the detection box 1 is provided with a sedimentation chamber 12, the carrying box 33 is used to fix the sampling bottle 5, the liquid drawing component 21 is used to pump the sample in the sampling bottle 5 into the sedimentation chamber 12, the detection box 1 is provided with an analysis chamber 13, a drainage channel 14 is provided between the sedimentation chamber 12 and the analysis chamber 13, and a detection chamber 16 and an adjustment slot 15 are sequentially provided along the sample delivery direction of the drainage channel 14;

[0038] The regulating component 23 includes an electrode sheet 231, a liquid distribution paddle 232 and an electromagnet 233. Two electrode sheets 231 are provided. The two electrode sheets 231 are respectively electrically connected to the two electrode columns of the control power supply to form a detection circuit. The drainage channel 14 cuts off the regulating tank 15. The liquid distribution paddle 232 is rotatably connected to the upper cavity of the regulating tank 15. The liquid distribution paddle 232 is made of a magnet. The electromagnet 233 is placed in the lower cavity of the regulating tank 15. The reagent cabin 4 is connected to the upper cavity of the regulating tank 15.

[0039] The carrying box 33 is installed and fixed through the working chamber 11. The carrying box 33 is hollow and opened upward. When water is supplied, the sampling bottle 5 is placed in the carrying box 33, and the liquid drawing component 21 sends the sample into the sedimentation chamber 12 through a pipeline for sedimentation. By pre-treating the sample, impurities and dirt in the water are prevented from interfering with the analysis results and affecting the detection accuracy. The water body that has been pretreated by filtration is pumped to the analysis chamber 13. When the water body enters the drainage channel 14, the two electrode sheets 231 connected to the power circuit are used to detect the water body passing through the two electrode sheets 231. When the ion concentration of the water body is greater, more reagents need to be added to the reaction. The greater the ion concentration, the more ions participate in the detection circuit to a point. Under the same voltage, the current of the detection circuit is greater. According to the detected ion concentration, the input current of the electromagnet 233 is controlled, and the electromagnet 233 and the liquid distribution paddle 232 made of magnet material generate a force. When the water body is pumped to the drainage channel 14, the liquid distribution paddle 232 is impacted, driving the liquid distribution paddle 232 to rotate. When the liquid distribution paddle 232 rotates, it drives the upper chamber of the regulating tank 15 to connect the reagent to the drainage channel. By controlling the current input to the electromagnet 233, the force between the electromagnet 233 and the liquid distribution paddle 232 is controlled, thereby controlling the rotation speed of the liquid distribution paddle 232 and adjusting the reagent intake.

[0040] Further, the electromagnet 233 is electrically connected to the detection circuit, and the input current of the electromagnet 233 is negatively correlated with the current of the detection circuit;

[0041] When speed is adjusted: the facing ends of the electromagnet 233 and the liquid distributing paddle 232 are magnetic poles of opposite names.

[0042] Through the opposite magnetic poles, the electromagnet 233 and the blades of the liquid distribution paddle 232 are attracted to each other, so that the electromagnet 233 hinders the rotation of the liquid distribution paddle 232. Through the negative correlation setting, when the ion concentration is high, the amount of reagents required to participate in the reaction increases. At this time, the current value of the detection circuit increases, and the current value input to the electromagnet 233 decreases accordingly. The magnetic pole suction between the electromagnet 233 and the liquid distribution paddle 232 is weakened. Under the impact of the water body, the instantaneous speed of the liquid distribution paddle 232 increases, that is, the amount of chemical reagent added increases, so that the reagent input amount is adjusted in real time according to the ion concentration of the water body to improve the reaction efficiency.

[0043] Furthermore, the auxiliary device 2 also includes a floating component 22, which includes a floating plate 221, a telescopic tube 222 and a lifting pump 223. The floating plate 221 is placed in the sedimentation chamber 12, the telescopic tube 222 runs through the floating plate 221, the lower end of the telescopic tube 222 is fastened to the floating plate 221, the upper end of the telescopic tube 222 is fastened to the lifting pump 223, the inlet of the lifting pump 223 is connected to the telescopic tube 222 pipeline, and the outlet of the lifting pump 223 is connected to the drainage channel 14.

[0044] The sedimentation chamber 12 serves as the main pretreatment chamber. When the liquid is pumped into the chamber, the inlet is located at the lower layer of the floating plate 221. As the water is pumped in, the floating plate 221 floats up under the action of buoyancy and drives the telescopic tube 222 to contract. When the sedimentation is completed, the upper layer of the sedimentation chamber 12 is clear liquid and the lower layer is turbid liquid. The upper clear liquid is pumped by the lifting pump 223 and sent into the drainage channel 14 to prevent the contaminants from entering the analysis chamber 13 and affecting the detection accuracy. During the pumping process, the floating plate 221 moves downward under the action of its own gravity, and the lower end of the telescopic tube 222 can remain flush with the lower side of the floating plate 221 to prevent crosstalk between the clear liquid and the turbid liquid.

[0045] Furthermore, the backwash device 3 also includes a water storage tank 31, the water storage tank 31 is connected to the upper end of the analysis chamber 13 by a pipeline, and the sampling bottle 5, the sedimentation chamber 12 and the analysis chamber 13 are arranged from bottom to top.

[0046] By setting up the water storage tank 31, after the water quality test is completed, the clean water flowing out of the water storage tank 31 first enters the analysis chamber 13 to flush the analysis chamber 13, and after the flushing is completed, it enters the drainage channel 14 to flush the drainage channel 14. The lower inlet and outlet of the sedimentation chamber 12 and the analysis chamber 13 are both provided with a cut-off valve, which is opened only when the flow path needs to be conducted, and is closed when it needs to be closed to ensure that the flow path is cut off. After the drainage channel 14 is flushed, it enters the sedimentation chamber 12 to flush the sedimentation chamber 12.

[0047] Furthermore, the diameter of the delivery pipe between the sampling bottle 5 and the sedimentation chamber 12 is smaller than the diameter of the delivery pipe between the sedimentation chamber 12 and the analysis chamber 13 .

[0048] Through the different settings of the delivery pipelines, the water entering through the sampling bottle 5 will gradually have its flow path enlarged, with the front flow path close to the sampling bottle 5, which can avoid blockage of the rear flow path and affect the fluid delivery efficiency.

[0049] As an optimization, the liquid drawing component 21 includes a liquid drawing tube 211 and a drainage pump 212. The lower end of the liquid drawing tube 211 is inserted into the sampling bottle 5. The inlet of the drainage pump 212 is connected to the liquid drawing tube 211, and the outlet of the drainage pump 212 is connected to the sedimentation chamber 12. When supplying samples, the liquid drawing tube 211 is inserted into the sampling bottle 5, and the drainage pump 212 delivers the sample into the sedimentation chamber 12 by pumping, which is convenient for sedimentation pretreatment and ensures the accuracy of subsequent detection.

[0050] As an optimization, the liquid drawing component 21 also includes a tube shell 213, which is sleeved on the outside of the connection between the liquid drawing tube 211 and the drainage pump 212, and the diameter of the tube shell 213 gradually decreases from top to bottom. The tube shell 213 is also connected to the port of the drainage pump 212 connected to the liquid drawing tube 211, and the connecting section is controlled by a stop valve. The stop valve is kept closed during pump liquid detection; during cleaning, the stop valve is opened, and the drainage pump 212 is reversed at this time. The cleaned water flows downward from the inside and outside of the liquid drawing tube 211 at the same time, thereby fully cleaning the liquid drawing tube 211 to prevent liquid residue outside the tube from affecting the continuity detection accuracy.

[0051] As an optimization, a waste liquid pipe 32 is provided outside the carrying box 33, and the waste liquid pipe 32 is connected to the inner cavity of the carrying box 33. By providing the waste liquid pipe 32, the waste water cleaned by the pipeline is discharged, which is convenient for continuity detection.

[0052] The working principle of the present invention is as follows: when water enters the drainage channel 14, the water passing between the two electrode sheets 231 is detected by connecting the two electrode sheets 231 of the power supply circuit. When the ion concentration of the water is higher, more reagents need to be added to the reaction. The higher the ion concentration, the more ions participate in the detection circuit to a point. Under the same voltage, the current of the detection circuit is higher. According to the detected ion concentration, the input current of the electromagnet 233 is controlled. The electromagnet 233 and the liquid distribution paddle 232 made of a magnet material generate a force. When the water is pumped to the drainage channel 14, the liquid distribution paddle 232 is impacted, driving the liquid distribution paddle 232 to rotate. When the liquid distribution paddle 232 rotates, it drives the reagent connected to the upper cavity of the regulating tank 15 to flow to the drainage channel. By controlling the current input to the electromagnet 233, the current between the electromagnet 233 and the liquid distribution paddle 232 is controlled. The force is exerted to control the rotation speed of the liquid distributing paddle 232 and adjust the reagent input amount; when the ion concentration is high, the amount of reagent required to participate in the reaction increases, at this time the current value of the detection circuit increases, the current value of the input electromagnet 233 decreases accordingly, the magnetic pole attraction between the electromagnet 233 and the liquid distributing paddle 232 weakens, and the liquid distributing paddle 232 increases its instantaneous rotation speed under the impact of the water body, that is, the amount of chemical reagent added increases, so that the reagent input amount is adjusted in real time according to the ion concentration of the water body to improve the reaction efficiency; the upper clear liquid is pumped by the lifting pump 223 and sent into the drainage channel 14 to prevent contaminants from entering the analysis chamber 13 and affecting the detection accuracy. During the pumping process, the floating plate 221 moves downward under the action of its own gravity, and the lower end of the telescopic tube 222 can remain flush with the lower side of the floating plate 221 to prevent crosstalk between the clear liquid and the turbid liquid.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water quality testing device based on chemical analysis technology, characterized in that: The water quality testing equipment comprises a testing box (1), an auxiliary device (2), a backwashing device (3) and a reagent chamber (4); the testing box (1) and the auxiliary device (2) are connected, the backwashing device (3) and the testing box (1) are connected via a pipeline, the reagent chamber (4) and the testing box (1) are connected, and the auxiliary device (2) is used to control the amount of material dropped from the reagent chamber (4).

2. The water quality detection equipment based on chemical analysis technology according to claim 1 is characterized in that: The detection box (1) is provided with a working chamber (11), the auxiliary device (2) comprises a liquid pumping component (21) and an adjustment component (23), the backwashing device (3) comprises a carrying box (33), the carrying box (33) is placed in the working chamber (11), the detection box (1) is provided with a sedimentation chamber (12), the carrying box (33) is used to fix the sampling bottle (5), the liquid pumping component (21) is used to pump the sample in the sampling bottle (5) into the sedimentation chamber (12), the detection box (1) is provided with an analysis chamber (13), a drainage channel (14) is provided between the sedimentation chamber (12) and the analysis chamber (13), and a detection chamber (16) and an adjustment groove (15) are sequentially provided along the sample delivery direction of the drainage channel (14); The regulating component (23) comprises an electrode sheet (231), a liquid distributing paddle (232) and an electromagnet (233). Two electrode sheets (231) are provided. The two electrode sheets (231) are respectively electrically connected to two electrode columns of a control power supply to form a detection circuit. The drainage channel (14) cuts off the regulating tank (15). The liquid distributing paddle (232) is rotatably connected to the upper cavity of the regulating tank (15). The liquid distributing paddle (232) is made of a magnetic material. The electromagnet (233) is placed in the lower cavity of the regulating tank (15). The reagent cabin (4) is connected to the upper cavity of the regulating tank (15).

3. The water quality detection equipment based on chemical analysis technology according to claim 2 is characterized in that: The electromagnet (233) is electrically connected to the detection circuit, and the input current of the electromagnet (233) is negatively correlated with the current of the detection circuit; When adjusting the speed: the facing ends of the electromagnet (233) and the liquid distributing paddle (232) are magnetic poles of opposite names.

4. The water quality detection equipment based on chemical analysis technology according to claim 3 is characterized in that: The auxiliary device (2) further comprises a floating assembly (22), the floating assembly (22) comprising a floating plate (221), a telescopic tube (222) and a lifting pump (223), the floating plate (221) being disposed in the sedimentation chamber (12), the telescopic tube (222) passing through the floating plate (221), the lower end of the telescopic tube (222) being tightly connected to the floating plate (221), the upper end of the telescopic tube (222) being tightly connected to the lifting pump (223), the inlet of the lifting pump (223) being connected to the pipeline of the telescopic tube (222), and the outlet of the lifting pump (223) being connected to the drainage channel (14).

5. The water quality testing equipment based on chemical analysis technology according to claim 4 is characterized in that: The backwash device (3) further comprises a water storage tank (31), the water storage tank (31) is connected to the upper end pipeline of the analysis chamber (13), and the sampling bottle (5), the sedimentation chamber (12) and the analysis chamber (13) are arranged from bottom to top.

6. The water quality testing equipment based on chemical analysis technology according to claim 5 is characterized in that: The diameter of the conveying pipe between the sampling bottle (5) and the sedimentation chamber (12) is smaller than the diameter of the conveying pipe between the sedimentation chamber (12) and the analysis chamber (13).

7. The water quality detection equipment based on chemical analysis technology according to claim 6 is characterized in that: The liquid drawing component (21) comprises a liquid drawing tube (211) and a drainage pump (212); the lower end of the liquid drawing tube (211) is inserted into the sampling bottle (5); the inlet of the drainage pump (212) is connected to the liquid drawing tube (211); and the outlet of the drainage pump (212) is connected to the sedimentation chamber (12).

8. The water quality testing equipment based on chemical analysis technology according to claim 7 is characterized in that: The liquid-drawing assembly (21) further comprises a tube shell (213), wherein the tube shell (213) is sleeved on the outside of the connection point between the liquid-drawing tube (211) and the drainage pump (212), and the diameter of the tube shell (213) gradually decreases from top to bottom.

9. The water quality testing equipment based on chemical analysis technology according to claim 8, characterized in that: A waste liquid pipe (32) is provided on the outside of the carrying box (33), and the waste liquid pipe (32) is communicated with the inner cavity of the carrying box (33).

Images