Method and device for detecting sealing, effluent quality and flow of water treatment equipment

Abstract

The invention discloses a method and a device for detecting sealing, effluent quality and flow of water treatment equipment, which are used for detecting effluent of the water treatment equipment, and the device comprises: a water inlet pipeline, one end of which is connected with the water treatment equipment; the water quality detection water tank is connected with the other end of the water inlet pipeline; a plurality of sensors for detecting water quality are arranged in the water quality detection water tank, and two sensors are arranged in each type; the water outlet pipeline is connected with the water quality detection water tank; the backwashing device comprises a hollow pipe, one end of the hollow pipe extends into the water quality detection water tank, and the other end of the hollow pipe is connected with an external washing liquid tank; a plurality of outlet holes are formed in the side wall of the hollow pipe, and the position of each outlet hole corresponds to that of a probe of each sensor; by arranging two groups of sensors which are standby for each other, the acquisition accuracy of the sensors is improved; the backwashing device is arranged to clean the sensor, residual water samples on the surface of the sensor are cleaned regularly, the detection reliability is improved, and the maintenance requirements are reduced.

Description

Technical Field

[0001] The invention relates to the field of water quality detection, and in particular to a method and a device for detecting the sealing, effluent water quality and flow rate of water treatment equipment. Background Art

[0002] After the water treatment equipment treats the sewage, the water quality needs to be tested. There are currently two main methods for water quality testing: taking water samples and then taking them back to the laboratory for water quality testing, and using water quality testing equipment on site for water quality testing. However, these two methods each have their own disadvantages.

[0003] For the method of taking samples on site and then bringing them back to the laboratory, since the water samples need to be brought back to the laboratory for analysis after on-site sampling, this process takes a long time, causing the monitoring results to lag behind the actual situation; on-site sampling involves multiple steps, including correctly selecting sampling points, using appropriate samplers, recording detailed information, etc., which increases the complexity of the operation; due to the intervention of human factors in the sampling process, improper operation may lead to unstable sample quality; since the sampled samples need to be brought back to the laboratory for analysis, real-time monitoring cannot be achieved, and early signs of pollution events may be missed; the measurement waste liquid generated after the completion of some measurement parameters may contain toxic and harmful substances and need to be properly handled to avoid secondary pollution; different sampling equipment may affect the quality of the sample, such as insufficient cleanliness of the sampling equipment or improper use leading to sample contamination; water samples need appropriate preservation methods after collection, otherwise chemical changes or biodegradation may occur, affecting subsequent analysis results.

[0004] Regarding the method of using water quality testing equipment on site for water quality testing, although this type of equipment provides a fast and convenient means of testing, there are still some disadvantages: existing portable equipment is not as accurate as laboratory equipment, especially when detecting low-concentration pollutants, its sensitivity and accuracy are low; the proficiency and experience of the equipment operator will affect the test results, and improper operation may result in erroneous readings; unstable water inlet pressure during on-site testing will affect the accuracy of the sensor. Too low water inlet pressure will cause the water flow to become smaller, which may not be enough to drive the sensor for accurate monitoring, while too high water inlet pressure may cause the water flow rate to be too fast, affecting the response time and accuracy of the sensor. Fluctuations in water inlet pressure may also cause discontinuous water flow, thereby affecting the stability and accuracy of water quality test results; when there are bubbles or blockages or other obstacles in the pipeline, the water flow rate will fluctuate, causing the water flow to be unstable, affecting the consistency of the sensor collecting samples, and causing fluctuations in the test results. If there are many bubbles in the water flow, the sensor may mistakenly identify the bubbles as other substances in the water, thereby affecting the test results.

[0005] In addition, for water treatment equipment, it is also necessary to detect whether its water flow rate is stable and continuously monitor the water quality to ensure that its water quality always meets the standards.

[0006] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0007] The purpose of the present invention is to provide a device and method for quickly detecting water quality on site, so as to solve the problem that the current water quality detection method is inaccurate or cumbersome to operate, thereby obtaining more accurate detection results and detecting whether the water flow rate of the water treatment equipment is stable.

[0008] To achieve the above object, the present invention proposes a detection device for water treatment equipment, which is used to detect the water output of the water treatment equipment, comprising:

[0009] A water inlet pipeline, one end of which is connected to the water treatment equipment;

[0010] A water quality detection water tank is connected to the other end of the water inlet pipeline; a plurality of water quality detection sensors are arranged in the water quality detection water tank, and two sensors of each type are arranged to detect the water quality at the same time;

[0011] A water outlet pipeline connected to the water quality detection tank;

[0012] A backwashing device, the backwashing device includes a hollow tube, one end of which extends into the interior of a water quality detection tank, and the other end is connected to an external flushing liquid tank; a plurality of outlet holes are opened on the side wall of the hollow tube, and the position of each outlet hole corresponds to the probe of each sensor.

[0013] Optionally, the detection device further comprises a self-priming pump connected to the hollow steel pipe, through which the flushing liquid in the flushing liquid tank is pumped into the hollow steel pipe.

[0014] Optionally, the self-priming pump is also connected to a standard liquid tank to pump the standard liquid into the hollow tube.

[0015] Optionally, an isolation plate is provided between different types of sensors to isolate the different types of sensors.

[0016] Optionally, the detection device also includes a weak current signal acquisition module, a strong current power module and a digital display screen; the weak current signal acquisition module is arranged above the water quality detection tank and is connected to each of the sensors for collecting the detection results of the sensors and sending them to the digital display screen for display; the strong current power module is arranged below the water quality detection tank.

[0017] Optionally, the water inlet pipeline is provided with a first gate valve, a second gate valve, a third gate valve, a pressure reducing valve, a pressure gauge and a flow meter; one end of the first gate valve is directly connected to the water treatment equipment, and the other end is directly connected to the pressure reducing valve; the third gate valve is arranged between the pressure reducing valve and the water quality detection water tank and is directly connected to the water quality detection water tank; the pressure gauge and the flow meter are arranged between the pressure reducing valve and the third gate valve; the second gate valve is connected in parallel to the third gate valve, one end of which is connected between the third gate valve and the pressure gauge or the flow meter, and the other end is connected to the waste liquid tank.

[0018] Another aspect of the present invention also provides a method for detecting the quality of effluent from a water treatment device, using the detection device, comprising the following steps:

[0019] S11. Close the third gate valve, and open the first gate valve and the second gate valve;

[0020] S12. Connect the detection device and the water treatment equipment, and operate the water treatment equipment. The water sample in the water treatment equipment enters the waste liquid tank through the first gate valve and the second gate valve; during which the pressure gauge reading is monitored until the pressure fluctuation displayed by the pressure gauge becomes stable;

[0021] S13. Connect the self-priming pump to the flushing liquid tank, use the self-priming pump to pump the flushing liquid in the flushing liquid tank into the hollow tube, the flushing liquid is ejected from the outlet hole of the hollow tube, cleaning the probes of each sensor, and the flushing liquid flows out from the outlet pipe after flushing;

[0022] S14. Connect the self-priming pump to the standard liquid tank, use the self-priming pump to pump the standard liquid in the standard liquid tank into the hollow steel pipe, and reach each sensor, so that each sensor performs self-calibration, and the standard liquid flows out from the outlet pipeline;

[0023] S15. Repeat step c to clean the sensor to avoid affecting subsequent water quality testing;

[0024] S16. Open the third gate valve, close the second gate valve, and cooperate with the pressure reducing valve to allow the water from the water treatment equipment to enter the water quality detection tank. Each sensor detects the water quality and sends it to the digital display screen for display;

[0025] S17. Through the detection of the sensor over a period of time, the digital display screen takes the average value of the measured values ​​of each parameter as the detection result.

[0026] Optionally, in S16, the water flow rate entering the water quality detection tank is adjusted by adjusting the opening of the third gate valve.

[0027] The present invention also proposes a method for detecting the water flow rate of a water treatment device, using the detection device, comprising the following steps:

[0028] S21. Close the third gate valve, and open the first gate valve and the second gate valve;

[0029] S22. Connect the detection device and the water treatment equipment, and operate the water treatment equipment, monitor the pressure gauge until the pressure fluctuation displayed by the pressure gauge becomes stable;

[0030] S23. Monitor the flow meter reading and take the average value over a period of time as the flow detection value.

[0031] The present invention also proposes a sealing detection method for water treatment equipment, using the detection device, comprising the following steps:

[0032] S31. Connect the pressure test pump to the water treatment equipment;

[0033] S32. Connecting the detection device and the water treatment equipment;

[0034] S33. Open the first gate valve, and close the second gate valve and the third gate valve;

[0035] S34. Remove the pressure reducing valve and conduct a sealing test on the water treatment equipment.

[0036] Compared with the prior art, the technical solution of the present invention has the following advantages and beneficial effects:

[0037] The present invention proposes a detection device and a water outlet detection method for water treatment equipment, which are used to detect the water outlet of the water treatment equipment. The detection device includes a water quality detection water tank and a backwashing device. A plurality of sensors for detecting water quality are arranged in the water quality detection water tank, and two sensors of each type are arranged. The backwashing device includes a hollow tube, and a plurality of outlet holes are opened on the side wall of the hollow tube. The position of each outlet hole corresponds to the probe of the sensor. The device sets two sets of sensors as backup for each other to prevent errors in sensor acquisition from being difficult to be discovered, thereby improving the acquisition accuracy of the sensor. In addition, through the redundant setting, it can also be ensured that when a certain sensor fails, the detection device can still work normally. The sensor is cleaned by setting the backwashing device, and the water sample remaining on the surface of the sensor is cleaned regularly to ensure the accuracy and long-term stability of the sensor, thereby improving the reliability of detection and reducing maintenance requirements, thereby extending the service life of the sensor.

[0038] This solution protects the weak current signal from interference by separately setting up the strong electric power module and the weak current signal acquisition module, avoids the influence of strong voltage on the weak current signal acquisition module, and thus avoids errors in sensor signal acquisition and improves detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic diagram of the connection between the detection device and the water treatment equipment according to an embodiment of the present invention;

[0040] Figure 2 is a schematic structural diagram of a detection device according to an embodiment of the present invention;

[0041] Figure 3 It is a schematic diagram of the interior of a water quality detection tank in a detection device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the embodiments of the present invention Figure 1 to Figure 3 , the technical solutions, structural features, objectives achieved and effects in the embodiments of the present invention are described in detail.

[0043] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0044] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] In order to solve the problem that the current water quality detection method is inaccurate or the operation is cumbersome, the present invention proposes a detection device for water treatment equipment, such as Figure 1 As shown, the water treatment detection device B is connected to the water treatment equipment A and is used to detect the water outlet of the water treatment equipment A. Figure 2 and Figure 3 As shown, the detection device B includes an inlet pipe 19, a water quality detection tank 12 and an outlet pipe 15. The inlet pipe 19 is a stainless steel pipe, one end of which is connected to the water treatment equipment and the other end is connected to the water quality detection tank 12, and the outlet water of the water treatment equipment is introduced into the water quality detection tank 12 for detection. The outlet pipe 15 is a PVC pipe.

[0046] The water quality detection water tank 12 is provided with a plurality of sensors 13 for detecting water quality. The sensors 13 are of different types, for example, sensors for measuring parameters such as pH value, dissolved oxygen, conductivity, turbidity, etc. The flow rate of the water inlet pipe 19 is greater than that of the water outlet pipe 15. After the outlet water of the water treatment equipment A enters the water quality detection water tank 12, it contacts the plurality of sensors 13 in the water quality detection water tank 12, so that the sensors 13 detect the outlet water quality of the water treatment equipment.

[0047] The detection device of this embodiment further includes a weak current signal acquisition module 11 and a digital display screen 14. The weak current signal acquisition module 11 is arranged above the water quality detection tank 12 and connected to each sensor 13, and is used to collect the detection results of the sensor 13 and send them to the digital display screen 14 for display. The digital display screen 14 also has a data recording and analysis function, which records and analyzes the values ​​of the sensor 13 to obtain the average value within a period of time.

[0048] In this embodiment, the sensor 13 is redundantly set, and two groups of sensors 13 are set, that is, two sensors 13 of each type are set, one for main use and one for backup, and they are set in close positions. The water quality is tested at the same time, so that the main sensor and the backup sensor are backups for each other. The digital display screen 14 compares the water quality test results of the two groups of sensors 13, and the collected data of the two groups of sensors 13 are compared with each other to prevent errors in the collection of the sensor 13 that are difficult to be discovered, thereby improving the accuracy of the sensor 13. In addition, through this redundant setting, it can also be ensured that when a sensor 13 fails, the detection device B can still work normally.

[0049] Furthermore, an isolation plate 131 is provided between two adjacent sensors 13 of different types to isolate the sensors 13 of different types. Since the water flow pressure entering the water quality detection tank 12 is relatively high, the isolation plate 131 can be provided to further stabilize the water flow, thereby preventing the sensor 13 from having a reduced detection accuracy due to unstable water flow.

[0050] The isolation plate 131 is a transparent acrylic plate, which has the advantage of corrosion resistance. Although the cleanliness of the water sample treated by the water treatment equipment A is improved, it may still have a certain degree of corrosiveness, thereby damaging the sensor 13. By setting the isolation plate 131 as a transparent material, it is easy to observe the damage degree of the sensor 13 and replace it in time, thereby improving the detection accuracy of the detection device.

[0051] The detection device B also includes a backwashing device 18, which includes a hollow steel pipe 182 made of stainless steel. One end of the hollow steel pipe 182 extends horizontally into the interior of the water quality detection tank 12 and passes through each isolation plate 131 in turn. The port of the hollow steel pipe 182 in the water quality detection tank 12 is closed, and a plurality of outlet holes are opened on its side wall. The position of each outlet hole corresponds to the probe of the sensor 13. The other end of the hollow steel pipe 182 is connected to an external flushing liquid tank. When the flushing liquid enters the hollow steel pipe 181, due to the water pressure, the flushing liquid is sprayed out from each outlet hole to flush the probe of the sensor 13.

[0052] The flushing liquid can be distilled water.

[0053] By regularly cleaning the residual water sample on the surface of sensor 13, the accuracy and long-term stability of sensor 13 can be ensured, thereby improving the reliability of detection and reducing maintenance requirements, thereby extending the service life of sensor 13; by keeping the probe of sensor 13 clean, it can also be ensured that the response speed and sensitivity of sensor 13 are not affected.

[0054] Furthermore, the backwashing device 18 also includes a self-priming pump 181 connected to the hollow steel pipe 182. The flushing liquid is pumped into the hollow steel pipe 182 through the self-priming pump 181, which can increase the water pressure in the hollow steel pipe 182, thereby increasing the flushing force and intensity of the flushing liquid on the sensor 13, making the sensor 13 more accurate.

[0055] The self-priming pump 181 is also connected to the standard liquid tank to pump the standard liquid into the hollow steel pipe 182 and flush the probe of the sensor 13 through multiple outlet holes, so that the sensor 13 can perform self-calibration of water quality parameters.

[0056] The detection device B also includes a strong electric power module 16, which is arranged below the water quality detection water tank 12 and is used to provide power to various components, such as a self-priming pump 181, etc. Since the voltage of the weak current signal acquisition module 11 is tens of volts, commonly 24V, and the voltage of the strong electric power module 16 is hundreds of volts, commonly 220V or 380V, the strong electric power module 16 is separately arranged from the weak current signal acquisition module 11, so that the weak current signal can be protected from interference, the influence of the strong voltage on the weak current signal acquisition module 11 can be avoided, and errors in the signal acquisition of the sensor 13 can be avoided, thereby improving the accuracy of the detection.

[0057] Continue as Figure 2As shown, a pressure gauge 23 and a flow meter 24 are provided on the water inlet pipe 19. The pressure gauge 23 is used to monitor the water flow pressure in the water inlet pipe 19. Since the result of the water quality test is affected by the water pressure fluctuation, the pressure gauge 23 is set to monitor the water flow pressure, and the test is started after the water flow pressure fluctuation is stable. The flow meter 24 is used to measure and monitor the water flow rate in the water inlet pipe 19.

[0058] The water inlet pipe 19 is also provided with a pressure reducing valve 22. Since the water pressure flowing out of the water treatment equipment A is too high, if it directly enters the detection device B, the detection result of the sensor 13 will be affected by the water pressure and will be inaccurate. Therefore, the pressure reducing valve 22 is set to control the water pressure entering the water inlet pipe 19 so that the water pressure is within an acceptable range.

[0059] The water inlet pipeline 19 is also provided with a first gate valve 21, a second gate valve 25 and a third gate valve 26 in sequence, wherein one end of the first gate valve 21 is directly connected to the water treatment equipment A, and the other end is directly connected to the pressure reducing valve 22; the third gate valve 26 is arranged between the pressure reducing valve 22 and the water quality detection water tank 12 and is directly connected to the water quality detection water tank 12; the pressure gauge 22 and the flow meter 24 are arranged between the pressure reducing valve 22 and the third gate valve 26, and the order of the two can be set arbitrarily; the second gate valve 25 is connected in parallel to the third gate valve 26, one end of which is connected between the third gate valve 26 and the pressure gauge 22 (or flow meter 24), and the other end is connected to the waste liquid tank.

[0060] When it is necessary to introduce the water flow in the water treatment equipment A into the water quality detection water tank 12, the first gate valve 21 and the third gate valve 26 are opened, and the second gate valve 25 is closed, so that the water flow in the water treatment equipment A enters the water quality detection water tank 12. The opening of the third gate valve 26 can also be adjusted to meet the detection requirements of the water quality detection water tank 12. When it is necessary to use a flushing liquid to clean the probe of the sensor 13, or to use a standard liquid to self-calibrate the sensor 13, the third gate valve 26 is closed, and the flushing liquid or the standard liquid enters the water quality detection water tank 12 to process the sensor 13, and then is discharged through the outlet pipe 15.

[0061] In this embodiment, when the water flow entering the water quality detection water tank 12 is much greater than the water flow out, the water inlet pipe 19 is set not lower than the water outlet pipe 15, so that the water sample entering the water quality detection water tank 12 can be discharged faster.

[0062] Furthermore, in order to prevent the water sample in the water quality detection tank 12 from being overfilled and affecting the detection accuracy of the sensor 13, and even affecting the water sample in the water treatment equipment A from entering the water quality detection tank 12, an overflow port is opened at the top of the water quality detection tank 12. When the water in the water tank 12 is full, the water will flow out from the overflow port on the top.

[0063] Four rollers 17 are provided at the bottom of the detection device B, so that the entire detection device can be easily moved to different water sample supply locations as needed, thereby improving the flexibility of use.

[0064] Based on the above detection device B, the present invention also proposes a method for detecting the effluent water quality of a water treatment device A, comprising the following steps:

[0065] S11. Close the third gate valve 26, and open the first gate valve 21 and the second gate valve 25;

[0066] S12. Connect the detection device B and the water treatment device A, and operate the water treatment device A. At this time, the water sample in the water treatment device A passes through the first gate valve 21 and the second gate valve 25 and enters the waste liquid tank; during this period, the reading of the pressure gauge 23 is monitored until the pressure fluctuation displayed by the pressure gauge 23 tends to be stable; this is because the water treatment device A may be unstable in the early stage of operation, and the accuracy of directly performing water quality detection is greatly reduced;

[0067] S13. The self-priming pump 181 is connected to the flushing liquid tank, and the flushing liquid in the flushing liquid tank is pumped into the hollow steel pipe 182 by the self-priming pump 181. The flushing liquid is ejected from the outlet hole of the hollow steel pipe 182 to clean the probes of each sensor 13; since the third gate valve 26 is in the closed state, the flushing liquid flows out from the outlet pipe 15 after flushing;

[0068] S14. The self-priming pump 181 is connected to the standard liquid tank, and the standard liquid in the standard liquid tank is pumped into the hollow steel pipe 182 by the self-priming pump 181, and reaches each sensor 13, so that each sensor 13 performs self-calibration; since the third gate valve 26 is in the closed state, the standard liquid flows out from the outlet pipe 15;

[0069] S15. Repeat step c to clean the sensor 13 to avoid affecting subsequent water quality testing;

[0070] S16. Open the third gate valve 26, close the second gate valve 25, and cooperate with the pressure reducing valve 22 to allow the water of the water treatment equipment A to enter the water quality detection tank 12, and each sensor 13 detects the water quality and sends it to the digital display screen 14 for display; during the process, the opening of the third gate valve 26 is adjusted to adjust the water flow rate entering the water quality detection tank 12;

[0071] S17. Through the detection of the sensor 13 within a period of time, the digital display screen 14 takes the average value of the measured values ​​of each parameter as the detection result.

[0072] In the above process, by cleaning the sensor 13 , self-calibrating the sensor 13 and cleaning it again, factors affecting the detection of the sensor 13 are eliminated as much as possible, thereby improving the detection accuracy of the sensor 13 .

[0073] Since there are two groups of sensors 13, which serve as backup for each other, the digital display screen 14 compares the parameters of each group of sensors 13, and issues an alarm if the measured deviation value is greater than the set deviation value.

[0074] Based on the above detection device B, the present invention also proposes a method for detecting the outlet water flow of a water treatment device A, comprising the following steps:

[0075] S21. Close the third gate valve 26, and open the first gate valve 21 and the second gate valve 25;

[0076] S22. Connect the detection device B and the water treatment equipment A, and operate the water treatment equipment A, monitor the reading of the pressure gauge 22, until the pressure fluctuation displayed by the pressure gauge 22 becomes stable;

[0077] S23. Monitor the reading of the flow meter 24 and take the average value over a period of time as the flow detection value.

[0078] Based on the above detection device B, the present invention also proposes a sealing detection method for water treatment equipment, comprising the following steps:

[0079] S31. Connect the pressure test pump to the water treatment equipment A;

[0080] S32. Connect the detection device B and the water treatment equipment A;

[0081] S33. Open the first gate valve 21, close the second gate valve 25 and the third gate valve 26;

[0082] S34. Remove the pressure reducing valve 22 and perform a sealing test on the water treatment equipment A.

[0083] It should be noted that the detection device B of the present invention is not limited to the water treatment equipment A, and the device of the present invention can also be used in other occasions where water quality and water flow need to be detected.

[0084] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A detection device for water treatment equipment, used for detecting the water outlet of the water treatment equipment, characterized in that: include: A water inlet pipeline, one end of which is connected to the water treatment equipment; A water quality detection water tank is connected to the other end of the water inlet pipeline; a plurality of water quality detection sensors are arranged in the water quality detection water tank, and two of each type of sensors are arranged to detect the water quality at the same time; A water outlet pipeline connected to the water quality detection tank; A backwashing device, wherein the backwashing device comprises a hollow tube, one end of which extends into the interior of the water quality detection tank, and the other end is connected to an external flushing liquid tank; a plurality of outlet holes are provided on the side wall of the hollow tube, and the position of each outlet hole corresponds to the probe of each sensor.

2. The detection device according to claim 1, characterized in that The utility model also comprises a self-priming pump connected with the hollow steel pipe, through which the flushing liquid in the flushing liquid tank is pumped into the hollow steel pipe.

3. The detection device according to claim 2, characterized in that: The self-priming pump is also connected to the standard liquid tank to pump the standard liquid into the hollow tube.

4. The detection device according to claim 1, characterized in that: An isolation plate is provided between the sensors of different types to isolate the sensors of different types.

5. The detection device according to claim 1, characterized in that: It also includes a weak current signal acquisition module, a strong current power module and a digital display screen; the weak current signal acquisition module is arranged above the water quality detection water tank and is connected to each of the sensors to collect the detection results of the sensors and send them to the digital display screen for display; the strong current power module is arranged below the water quality detection water tank.

6. The detection device according to claim 1, characterized in that: The water inlet pipeline is provided with a first gate valve, a second gate valve, a third gate valve, a pressure reducing valve, a pressure gauge and a flow meter; One end of the first gate valve is directly connected to the water treatment equipment, and the other end is directly connected to the pressure reducing valve; The third gate valve is arranged between the pressure reducing valve and the water quality detection water tank and is directly connected to the water quality detection water tank; The pressure gauge and the flow meter are arranged between the pressure reducing valve and the third gate valve; The second gate valve is connected in parallel with the third gate valve, one end of the second gate valve is connected between the third gate valve and a pressure gauge or a flow meter, and the other end is connected to the waste liquid tank.

7. A method for detecting the effluent quality of a water treatment device, using the detection device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S11. Close the third gate valve, and open the first gate valve and the second gate valve; S12. Connect the detection device and the water treatment equipment, and operate the water treatment equipment. The water sample in the water treatment equipment enters the waste liquid tank through the first gate valve and the second gate valve; during which the pressure gauge reading is monitored until the pressure fluctuation displayed by the pressure gauge becomes stable; S13. Connect the self-priming pump to the flushing liquid tank, use the self-priming pump to pump the flushing liquid in the flushing liquid tank into the hollow tube, the flushing liquid is ejected from the outlet hole of the hollow tube, cleaning the probes of each sensor, and the flushing liquid flows out from the outlet pipe after flushing; S14. Connect the self-priming pump to the standard liquid tank, use the self-priming pump to pump the standard liquid in the standard liquid tank into the hollow steel pipe, and reach each sensor, so that each sensor performs self-calibration, and the standard liquid flows out from the outlet pipeline; S15. Repeat step c to clean the sensor to avoid affecting subsequent water quality testing; S16. Open the third gate valve, close the second gate valve, and cooperate with the pressure reducing valve to allow the water from the water treatment equipment to enter the water quality detection tank. Each sensor detects the water quality and sends it to the digital display screen for display; S17. Through the detection of the sensor over a period of time, the digital display screen takes the average value of the measured values ​​of each parameter as the detection result.

8. The method for detecting the effluent quality of a water treatment device according to claim 7, characterized in that: In S16, the water flow rate entering the water quality detection water tank is adjusted by adjusting the opening of the third gate valve.

9. A method for detecting the water flow rate of a water treatment device, characterized in that: Using the detection device according to any one of claims 1 to 6, comprising the following steps: S21. Close the third gate valve, and open the first gate valve and the second gate valve; S22. Connect the detection device and the water treatment equipment, and operate the water treatment equipment, monitor the pressure gauge until the pressure fluctuation displayed by the pressure gauge becomes stable; S23. Monitor the flow meter reading and take the average value over a period of time as the flow detection value.

10. A sealing detection method for water treatment equipment, characterized in that: Using the detection device according to any one of claims 1 to 6, comprising the following steps: S31. Connect the pressure test pump to the water treatment equipment; S32. Connecting the detection device and the water treatment equipment; S33. Open the first gate valve, and close the second gate valve and the third gate valve; S34. Remove the pressure reducing valve and conduct a sealing test on the water treatment equipment.

Images