A green, portable well washing device and method for monitoring groundwater

Abstract

The application discloses a kind of green, portable groundwater monitoring well washing device and method, washing device includes well washing device main part, central control system, battery, positioning system and measuring instrument, the bottom of well washing device main part is equipped with water pump, wastewater filtration and collection mechanism is equipped in the middle of well washing device main part, and measuring instrument is located at the bottom of well washing device main part, method includes S1, preparation stage, S2, well washing treatment, S3, measure water quality;The component and method of being set are used to wash well, and the wastewater after treatment can be recharged or used as other places after deep cleaning treatment, the application provides a kind of green, portable groundwater washing device, is used to purify, deal with well washing wastewater in the process of well washing without clear pollution condition, to avoid or solve secondary pollution and other problems in work.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of well washing device, in particular to a green and portable groundwater monitoring well washing device and method. BACKGROUND

[0002] The groundwater monitoring well is a water quality monitoring well set up to accurately grasp the dynamic distribution change of the groundwater environmental quality and the pollutants in the groundwater body. In the construction of the groundwater monitoring well, well washing is a very important step after the completion of the well washing of the groundwater monitoring well. The purpose of well washing is to clean the silt and other accumulated materials generated during the construction of the well, so that the water pumped out of the groundwater monitoring well is clear and transparent, and the accuracy of the monitoring results is ensured.

[0003] In the actual well washing process of the traditional well washing device, the water discharged from the well washing of the groundwater monitoring well cannot be properly disposed or treated, and the well washing wastewater without purification and unknown pollution condition is usually disposed by local discharge or introduction into the rainwater and sewage well, which has the risk of polluting the soil and groundwater in the region. Therefore, a green and portable groundwater monitoring well washing device and method are needed. SUMMARY

[0004] To solve the above technical problems, the present application provides a green and portable groundwater monitoring well washing device and method.

[0005] The technical scheme of the present application is: a green and portable groundwater monitoring well washing device, comprising a well washing device main body, a central control system for controlling the well washing device, a storage battery for supplying power to the well washing device, a positioning system for determining the position of the well washing device main body, and a measuring instrument for water quality determination and well washing water volume determination;

[0006] The bottom of the well washing device main body is provided with a water pump for pumping water, and the middle of the well washing device main body is provided with a wastewater filtration and collection mechanism for treating well washing water, and the water quality and well washing water volume measuring instrument is located at the bottom of the well washing device main body;

[0007] The well washing device main body comprises a spraying assembly, a telescopic rod and a water pumping pipe, the upper end of the telescopic rod is provided with a motor for rotating the telescopic rod and a placing disc, the placing disc is sleeved on the upper end of the telescopic rod and is rotatably connected with the telescopic rod, the motor is arranged on the placing disc, the lower end of the telescopic rod is fixedly connected with the upper end of the spraying assembly, the upper end of the water pumping pipe extends into the spraying assembly and is in communication with the spraying assembly, and the water pumping pipe is rotatably connected with the spraying assembly, the lower end of the water pumping pipe is in communication with the water pump, and the wastewater filtration and collection mechanism is provided with a water outlet pipe for transporting the treated wastewater;

[0008] The wastewater filtering and collecting mechanism comprises a cylinder, an annular filter screen and an activated carbon layer, the annular filter screen is arranged at the upper part of the cylinder, and the activated carbon layer is arranged in the cylinder below the annular filter screen.

[0009] A liquid level sensor is arranged on the sidewall of the cylinder below the activated carbon layer; and the central control system is electrically connected with the positioning system, the water quality and well flushing water volume measuring instrument and the water pump.

[0010] Description: The underground water well flushing device is used to purify and dispose of the well flushing wastewater with unknown pollution in the well flushing process. The central control system can intelligently control the operation of the flushing device, improve the automation of the well flushing device, accurately control the accuracy of the well flushing device dropping position through the cooperation of the positioning system and the central control system, determine the well flushing process and water quality detection through the cooperation of the measuring instrument and the central control system, and treat the wastewater in the well to avoid or solve the secondary pollution problem in the work. The treated wastewater can be used for recharging or used in other places after deep cleaning treatment. The well flushing device can be accurately dropped into the underground water monitoring well at a specific depth through the control of the telescopic rod, the wastewater in the underground water monitoring well can be pumped into the spraying assembly through the water pump, the wastewater falls into the wastewater and collecting mechanism after being sprayed to improve the wastewater treatment effect and efficiency, purify and treat the wastewater during well flushing, and reduce the pollution of the wastewater to the environment.

[0011] Further, the measuring instrument comprises an electric conductivity measuring module, a temperature measuring module, a pH measuring module, an oxidation-reduction measuring module, a dissolved oxygen measuring module, a turbidity measuring module and a first storage, and the electric conductivity measuring module, the temperature measuring module, the pH measuring module, the oxidation-reduction measuring module, the dissolved oxygen measuring module and the turbidity measuring module are electrically connected with the first storage.

[0012] Description: The measuring instrument can measure the electric conductivity, pH and turbidity of the wastewater, can judge the water quality in the monitoring well, and can determine the well flushing process and water quality detection through the cooperation of the measuring instrument and the central control system, so as to complete the well flushing.

[0013] Further, the well flushing device body is made of high-strength and corrosion-resistant material.

[0014] Description: The device is made of high-strength and corrosion-resistant material, such as stainless steel or special plastic. This can ensure the stability of the well flushing device, facilitate transportation, and improve the portability of the well flushing device.

[0015] Further, the storage battery has solar charging function and external power supply charging function.

[0016] Note: The size of the battery can be selected according to the needs of groundwater extraction, depth measuring instrument and other components, and the battery is equipped with solar charging and external power charging function to meet the needs of different working conditions of the well washing device.

[0017] Further, the central control system comprises a controller, a second storage and a display screen, and the first storage is connected with the controller through wireless connection.

[0018] Note: The controller is used for the operation control of each component of the well washing device and the judgment and processing of each data, the second storage is used for storing each collected data, processed data and comparison data, the display screen is a touch screen, and the controller is electrically connected with the second storage and the display screen.

[0019] Further, the spraying assembly comprises a spraying cylinder and a liquid spraying pipe arranged on the side wall of the spraying cylinder, and the liquid spraying pipe is provided with three groups from top to bottom, and each group is provided with four liquid spraying pipes at equal intervals in the circumferential direction.

[0020] Note: By arranging multiple groups of liquid spraying pipes, the wastewater spraying effect can be further improved, so that the wastewater is dispersed and falls into the wastewater and collecting mechanism, and the wastewater treatment effect is improved.

[0021] Further, a scraping assembly is arranged on the annular filter screen, the scraping assembly comprises a first scraper for scraping the annular filter screen, a second scraper for scraping impurities on one side of the first scraper, and a connecting plate located inside the annular filter screen, the upper end of the connecting plate is fixedly connected with the bottom of the spraying cylinder, the lower end of the connecting plate is fixedly connected with one end of the first scraper, a belt pulley assembly is arranged on the side of the first scraper away from the connecting plate, the belt pulley assembly comprises a belt and two belt pulleys, the two belt pulleys are arranged at the two ends of the first scraper and are rotatably connected with the first scraper, and the two belt pulleys are located between the outer side of the annular filter screen and the cylinder and between the inner side of the annular filter screen and the water pumping pipe, the annular filter screen passes through the middle part of the belt pulley assembly, the second scraper is fixedly connected with the belt through a connecting rod, and the second scraper is arranged on the other side of the first scraper.

[0022] A first conical cylinder baffle for guiding flow is arranged at the bottom of the spraying cylinder, the lower end of the conical cylinder baffle is slidably connected with the upper end surface of the inner side of the annular filter screen, a second conical cylinder baffle is arranged on the inner wall of the cylinder above the outer side of the annular filter screen, a gap is left between the second conical cylinder baffle and the outer side of the annular filter screen, and a fixed plate is arranged on the edge of the outer side of the annular filter screen on one side of the scraping assembly, and the fixed plate is fixedly connected with the inner wall of the cylinder.

[0023] A transmission assembly for rotating the belt pulley is arranged inside the annular filter screen, the transmission assembly comprises a conical gear ring and a rotating shaft, the conical gear ring is arranged inside the annular filter screen and fixedly connected with the annular filter screen, the rotating shaft is rotatably connected with a support arranged on one side of the belt pulley, one end of the rotating shaft is provided with a bevel gear for meshing transmission with the conical gear ring, and the other end of the rotating shaft is provided with a worm, and the belt pulley is provided with a worm wheel for meshing transmission with the worm.

[0024] A cylindrical filter screen is arranged in the vertical direction inside the cylinder below the annular filter screen, and the bottom of the cylindrical filter screen is fixedly connected with a support ring arranged on the inner wall of the cylinder.

[0025] Description: By arranging the scraping assembly, the impurities on the annular filter screen can be scraped to prevent the annular filter screen from being blocked, and the efficiency of the wastewater filtering and collecting mechanism in treating wastewater is reduced. The first scraper is connected with the spraying assembly, so that the first scraper can move on the annular filter screen and scrape the annular filter screen. By arranging the belt pulley assembly and the transmission assembly, the second scraper can move to the outer end of the first scraper when the first scraper moves in a circular manner, so that the second scraper can scrape the impurities accumulated on the first scraper to the outside of the annular filter screen and fall into the cylindrical filter screen for collection, thereby completing the cleaning of the annular filter screen and improving the processing efficiency of the wastewater filtering and collecting mechanism.

[0026] Further, a push rod is arranged on the belt, an air bag is arranged on the first scraper below the belt, a pressing assembly for pressing the air bag by relative movement with the push rod is arranged on the first scraper between the air bag and the belt and is slidably connected with the first scraper, the pressing assembly comprises a moving plate for contacting the air bag and a protruding plate which is perpendicular to the moving plate and is slidably connected with the first scraper, a plurality of air outlets are arranged on the air bag, and a gas channel corresponding to each air outlet is arranged on the first scraper, the outlet of the gas channel is located at the lower end of the first scraper, and a plurality of air bags and moving plates are arranged.

[0027] Description: By arranging the push rod and the moving plate, the air bag can be pressed when the first scraper moves, so that the gas channel sprays gas to assist the first scraper and the second scraper in dredging the annular filter screen.

[0028] Further, the first conical cylinder baffle is provided with an opening at the lower end of the side wall, the diameter of the upper end port of the second conical cylinder baffle is larger than that of the lower end port, and the fixed plate and the transmission assembly are located on the same side of the belt pulley assembly.

[0029] Description: The first conical cylinder baffle at the belt pulley assembly is provided with an opening to prevent mutual interference of the components, and the first conical cylinder baffle and the second conical cylinder baffle can guide the sprayed wastewater to move to the middle of the annular filter screen to prevent the wastewater from falling inside and outside the annular filter screen.

[0030] The application also provides a method for washing a well by using the well washing device.

[0031] S1, preparation stage:

[0032] First, the central control system and the positioning system are started, the position and depth of the well washing device body are determined, and then the well washing device body is placed into the underground water monitoring well.

[0033] S2, well washing treatment:

[0034] When starting to wash the well, the central control system controls the water pump to start, and the wastewater in the monitoring well is pumped to the wastewater filtering and collecting mechanism for filtering treatment and collection, and the water pumping is repeated multiple times for well washing.

[0035] S3, water quality determination:

[0036] When the amount of water pumped out during well washing is 1 times the volume of the water in the well, the central control system controls the water quality and well washing water volume measuring instrument to determine the values of the oxidation-reduction potential, dissolved oxygen and turbidity of the water in the monitoring well once, and the detected values are stored in the first storage and transmitted to the central control system; if the requirements are met, the central control system controls the water quality and well washing water volume measuring instrument to determine the change values of conductivity, temperature, pH, oxidation-reduction potential, dissolved oxygen and turbidity multiple times, and the change values are compared by the central control system to see if the requirements are met; if the requirements are not met, when the amount of water pumped out during well washing is 3-5 times the volume of the water in the well, the portable water quality measuring instrument is used again to determine the measurement, and when the determination result meets the requirements, the well washing can be ended.

[0037] The application has the following beneficial effects:

[0038] (1) The application can intelligently control the operation of the washing device by setting the central control system, improve the automation of the well washing device, accurately control the accuracy of the well washing device placement position by setting the positioning system and the central control system, determine the well washing process and water quality detection by setting the water quality and well washing water volume measuring instrument and the central control system, and process the wastewater in the well by setting the wastewater filtering and collecting mechanism, and the treated wastewater can be used for other places after re-cleaning or deep cleaning, the application provides a green and portable underground water well washing device, which is used to purify and dispose of well washing wastewater with unknown pollution conditions in the well washing process, so as to avoid or solve the problem of secondary pollution in work.

[0039] (2) The application can scrape the impurities on the annular filter screen through the scraping assembly, prevent the annular filter screen from being blocked, and reduce the efficiency of the wastewater filtering and collecting mechanism in treating wastewater. The first scraper is connected with the spraying assembly, so that the first scraper can move on the annular filter screen and scrape the annular filter screen. The belt pulley assembly and the transmission assembly are arranged, so that the second scraper can move to the outer end of the first scraper when the first scraper moves in a circular manner, and the second scraper can scrape the impurities accumulated on the first scraper to the outside of the annular filter screen and fall into the cylindrical filter screen for collection, thereby cleaning the annular filter screen and improving the processing efficiency of the wastewater filtering and collecting mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 is a schematic view of the appearance of the application;

[0041] Figure 2 is a schematic view of the position relationship of the wastewater filtering and collecting mechanism of the application;

[0042] Figure 3 is a schematic view of the position relationship between the spraying assembly and the telescopic rod of the application;

[0043] Figure 4 is a schematic view of the inside of the wastewater filtering and collecting mechanism of the application;

[0044] Figure 5 is a schematic view of the position of the annular filter screen of the application;

[0045] Figure 6 is a schematic view of the position relationship between the annular filter screen and the cylindrical filter screen of the application;

[0046] Figure 7 is a schematic view of the position relationship of the scraping assembly of the application;

[0047] Figure 8 is a schematic view of the position of the first conical cylinder baffle of the application;

[0048] Figure 9 is a schematic view of the position relationship between the cylindrical filter screen and the support ring of the application;

[0049] Figure 10 is a schematic view of the position relationship between the scraping assembly and the annular filter screen of the application;

[0050] Figure 11 is a schematic view of the position relationship between the belt pulley assembly and the first scraper of the application;

[0051] Figure 12 is an enlarged view of A of the application Figure 10

[0052] Figure 13 is a schematic view of the position relationship between the air bag and the first scraper of the application; ​

[0053] Figure 14 Figure 1 is a schematic diagram of the position relationship between the moving plate and the convex plate of the application;

[0054] Wherein, 1-well washing device main body, 11-spraying assembly, 111-spraying cylinder, 112-liquid spraying pipe, 12-telescopic rod, 13-pumping pipe, 14-motor, 2-water pump, 3-waste water filtering and collecting mechanism, 31-cylinder, 32-annular filter screen, 321-fixing plate, 33-activated carbon layer, 34-cylindrical filter screen, 341-support ring, 35-water outlet pipe, 4-scrubbing assembly, 41-first scraper, 42-second scraper, 43-connection plate, 44-pulley assembly, 441-belt, 442-pulley, 45-first conical cylinder baffle, 46-second conical cylinder baffle, 47-push rod, 48-moving plate, 481-convex plate, 49-air bag, 5-transmission assembly, 51-conical gear ring, 52-rotation shaft, 521-supporting piece, 53-bevel gear, 54-worm, 55-worm wheel. DETAILED DESCRIPTION

[0055] The application will be described in further detail below in conjunction with the specific embodiments, so as to better reflect the advantages of the application.

[0056] Embodiment 1

[0057] As shown in the drawings, a green and portable well washing device for groundwater monitoring well includes a well washing device main body 1, a central control system for controlling the well washing device, a storage battery for supplying power to the well washing device, a positioning system for determining the position of the well washing device main body 1, and a measuring instrument for water quality determination and well washing pumping volume determination. Figure 1 The bottom of the well washing device main body 1 is provided with a water pump 2 for pumping, and the middle part of the well washing device main body 1 is provided with a waste water filtering and collecting mechanism 3 for treating well washing water, and the measuring instrument is located at the bottom of the well washing device main body 1.

[0058] The central control system is electrically connected with the positioning system, the measuring instrument and the water pump 2 respectively.

[0059] The storage battery has solar charging function and external power supply charging function.

[0060] The central control system includes a controller, a second storage and a display screen, the first storage and the controller are connected with the central control system through wireless connection, and the controller is a single-chip microcomputer.

[0061] The method for washing well by using the above well washing device includes the following steps:

[0062] S1, preparation stage:

[0063] S2, pumping stage:

[0064] First, the central control system and positioning system are started, and the position and depth of the well washing device main body 1 are determined, and then the well washing device main body 1 is placed into the underground water monitoring well.

[0065] S2, well washing treatment:

[0066] When starting to wash the well, the central control system controls the water pump 2 to start, and the wastewater in the monitoring well is pumped into the wastewater filtering and collecting mechanism 3 for filtering treatment and collection, and the water pumping is repeated multiple times for well washing.

[0067] S3, measuring water quality:

[0068] When the amount of water pumped out during well washing is 1 times the volume of the water in the well, the central control system controls the measuring instrument to measure the values of the oxidation-reduction potential, dissolved oxygen and turbidity of the water in the monitoring well once, and the detected values are stored in the first storage and transmitted to the central control system; the controller judges that the collected dissolved oxygen does not meet the standard (dissolved oxygen within ±0.3 mg / L meets the requirement), the oxidation-reduction potential meets the requirement (the oxidation-reduction potential within ±10 mV meets the requirement), and the turbidity is greater than 10 NTU, which does not meet the requirement, and then the water pumping for well washing is performed again, when the amount of water pumped out during well washing is 3 times the volume of the water in the well, the portable water quality measuring instrument is used again to measure and measure, and the measurement result meets the requirement, and the well washing is ended.

[0069] The above-mentioned electrical components are selected from commercially available electrical components or are adjusted in appearance according to commercially available electrical components to adapt to the device, and the connection mode of each component is the prior art.

[0070] Example 2

[0071] The difference between this embodiment and example 1 is that the water quality and well washing water volume measuring instrument includes a conductivity measuring module, a temperature measuring module, a pH measuring module, an oxidation-reduction measuring module, a dissolved oxygen measuring module, a turbidity measuring module and a first storage, the conductivity measuring module, the temperature measuring module, the pH measuring module, the oxidation-reduction measuring module, the dissolved oxygen measuring module and the turbidity measuring module are electrically connected with the first storage, and the conductivity measuring module, the temperature measuring module, the pH measuring module, the oxidation-reduction measuring module, the dissolved oxygen measuring module and the turbidity measuring module adopt commercially available conductivity electrodes, thermocouple sensors, pH glass electrodes, oxidation-reduction electrodes, membrane type dissolved oxygen sensors and light absorption method turbidity sensors.

[0072] The central control system controls the water quality of the water in the monitoring well, and the conductivity is continuously measured three times with a variation of ±10%, the temperature is continuously measured three times with a variation of ±0.5℃, the pH is continuously measured three times with a variation of ±0.1, the oxidation-reduction potential is continuously measured three times with a variation of ±10%, the dissolved oxygen is continuously measured three times with a variation of ±10%, the turbidity is ≤10 NTU, and the variation of the continuously measured three times is within ±10%, the measurement result meets the requirements, and the well washing is ended.

[0073] Example 3

[0074] The difference between this embodiment and example 1 is that, as shown in Figure 2 、 3 , the well washing device body 1 is provided with a spraying assembly 11, a telescopic rod 12 and a water suction pipe 13, the telescopic rod 12 is an electric push rod and a placing disc, the placing disc is sleeved on the upper end of the telescopic rod 12 and is rotationally connected with the telescopic rod 12, the motor is arranged on the placing disc, the upper end of the telescopic rod 12 is provided with a motor 14 for rotating the telescopic rod 12, the lower end of the telescopic rod 12 is fixedly connected with the upper end of the spraying assembly 11, the upper end of the water suction pipe 13 extends into the spraying assembly 11 and communicates with the spraying assembly 11, and the water suction pipe 13 is rotationally connected with the spraying assembly 11, the lower end of the water suction pipe 13 communicates with the water pump 2, and the wastewater filtering and collecting mechanism 3 is provided with a water outlet pipe 35 for conveying the treated wastewater;

[0075] As shown in Figure 4 , the wastewater filtering and collecting mechanism 3 includes a cylinder 31, an annular filter screen 32 and an activated carbon layer 33, the annular filter screen 32 is arranged on the upper part of the cylinder 31, and the activated carbon layer 33 is arranged in the cylinder 31 below the annular filter screen 32;

[0076] A liquid level sensor is arranged on the side wall of the cylinder 31 below the activated carbon layer 33;

[0077] As shown in the figure, the spraying assembly 11 includes a spraying cylinder 111 and a liquid spraying pipe 112 arranged on the side wall of the spraying cylinder 111, the liquid spraying pipe 112 is provided with three groups from top to bottom, and each group is provided with four liquid spraying pipes at equal intervals in the circumferential direction;

[0078] The operation method of the above device is as follows:

[0079] The placing disc is placed at the inlet of the groundwater monitoring well, the middle control system controls the telescopic rod 12 to place the well washing device main body 1 into the groundwater monitoring well, the middle control system controls the water pump 2 to start, the wastewater in the groundwater monitoring well is pumped into the spraying assembly 11 and sprayed out through the liquid spraying pipe 112 to fall on the annular filter screen 32, the wastewater is filtered through the annular filter screen 32, falls into the activated carbon layer 33 to further absorb impurities and the like, and finally falls into the cylinder 31, the middle control system controls the motor 14 to start to drive the spraying assembly 11 to rotate, so that the wastewater is uniformly filtered on the annular filter screen 32, when the treated wastewater reaches the liquid level sensor in the cylinder 31, the control system controls the water pump connected with the water outlet pipe 35 to transport the wastewater in the cylinder 31 out of the groundwater monitoring well.

[0080] Embodiment 4

[0081] This embodiment is basically the same as embodiment 2, and the difference is that, as shown in Figure 5 、 10 , the annular filter screen 32 is provided with a scraping assembly 4, the scraping assembly 4 includes a first scraper plate 41 for scraping the annular filter screen 32, a second scraper plate 42 for scraping impurities on one side of the first scraper plate 41, and a connecting plate 43 located inside the annular filter screen 32, the upper end of the connecting plate 43 is fixedly connected with the bottom of the spraying cylinder 111, the lower end of the connecting plate 43 is fixedly connected with the right end of the first scraper plate 41, the right side of the first scraper plate 41 away from the connecting plate 43 is provided with a belt pulley assembly 44, the belt pulley assembly 44 includes a belt 441 and two belt pulleys 442, the two belt pulleys 442 are respectively arranged at the two ends of the first scraper plate 41 and are rotatably connected with the first scraper plate 41, and the two belt pulleys 442 are respectively located between the annular filter screen 32 outside and the cylinder 31 and between the annular filter screen 32 inside and the water pumping pipe 13, the annular filter screen 32 passes through the middle part of the belt pulley assembly 44, the second scraper plate 42 is fixedly connected with the belt 441 through a connecting rod 443, and the second scraper plate 42 is arranged on the left side of the first scraper plate 41;

[0082] As shown in Figure 7 、 8 , 10, the bottom of the spraying cylinder 111 is provided with a first conical cylinder baffle 45 for drainage, the lower end of the conical cylinder baffle 45 is slidably connected with the upper end surface inside the annular filter screen 32, the inner wall of the cylinder 31 above the annular filter screen 32 outside is provided with a second conical cylinder baffle 46, a gap is left between the second conical cylinder baffle 46 and the annular filter screen 32 outside, the outer edge of the annular filter screen 32 on the right side of the scraping assembly 4 is provided with a fixed plate 321, and the fixed plate 321 is fixedly connected with the inner wall of the cylinder 31;

[0083] As shown in Figure 11 、 12As shown, the inside of the ring filter screen 32 is provided with a transmission assembly 5 for rotating the belt pulley 442, the transmission assembly 5 includes a conical gear ring 51 and a rotating shaft 52, the conical gear ring 51 is arranged inside the ring filter screen 32 and fixedly connected with the ring filter screen 32, the rotating shaft 52 is rotatably connected with a support 521 arranged on the right side of the belt pulley 442, the left end of the rotating shaft 52 is provided with a bevel gear 53 which is in meshing transmission with the conical gear ring 51, and the right end of the rotating shaft 52 is provided with a worm 54, and the belt pulley 442 is provided with a worm gear 55 which is in meshing transmission with the worm 54;

[0084] As shown in the drawings, Figure 9 As shown, a cylindrical filter screen 34 is arranged in the vertical direction inside the cylinder 31 below the ring filter screen 32, the bottom of the cylindrical filter screen 34 is fixedly connected with a support ring 341 arranged on the inner wall of the cylinder 31, and the bottom of the cylindrical filter screen 34 is fixedly connected with the edge of the support ring 341;

[0085] As shown in the drawings, Figure 9 As shown, the lower end side wall of the first conical cylinder baffle 45 is provided with an opening, the diameter of the upper end port of the second conical cylinder baffle 46 is 10 cm larger than that of the lower end port, and the fixed plate 321 and the transmission assembly 5 are located on the same side of the belt pulley assembly 44;

[0086] The operation method of the above device is as follows:

[0087] When washing the well, the central control system controls the motor 14 to start, controls the motor 14 to rotate forward, the motor 14 drives the spraying assembly 11 to rotate, the spraying cylinder 111 drives the connecting plate 43 and the first conical cylinder baffle 45 to rotate, the connecting plate 43 drives the first scraper 41 to move in the circumferential direction, the first scraper 41 drives the belt pulley assembly 44 to move, the belt pulley assembly 44 drives the transmission assembly 5 to move, the meshing transmission between the circumferentially moving bevel gear 53 and the fixed conical gear ring 51 makes the bevel gear 53 rotate around the rotating shaft 52, the rotation of the rotating shaft 52 drives the worm 54 to rotate, the worm 54 drives the worm gear 55 to rotate, the worm gear 55 drives the belt pulley 442 on it to rotate, the belt pulley 442 drives the belt 441 to move, so that the second scraper 42 on the belt 441 moves from the inner end of the ring filter screen 32 to the outer end of the ring filter screen 32, and the impurities in front of the first scraper 41 are scraped to the gap between the ring filter screen 32 and the second conical cylinder baffle 46, and fall into the storage room between the cylindrical filter screen 34 and the cylinder 31, when the first scraper 41 moves in the circumferential direction by 355°, the central control system controls the motor 14 to rotate reversely, the scraping assembly 4 is reset, and the above operation is repeated until the water in the groundwater monitoring well meets the standard, and the well washing is completed.

[0088] Example 5

[0089] This embodiment is basically the same as example 2, and the difference is that, as shown in the drawings, Figure 13 , 14As shown, the push rod 47 is arranged on the belt 441, the air bag 49 is arranged on the first scraper 41 below the belt 441, the pressing and moving assembly for pressing the air bag 49 by relative movement with the push rod 47 is arranged on the first scraper 41 between the air bag 49 and the belt 441, the pressing and moving assembly is in sliding connection with the first scraper 41 and comprises the moving plate 48 for contacting the air bag 49 and the convex plate 481 which is perpendicular to the moving plate 48 and in sliding connection with the first scraper 41, the air bag 48 is provided with ten air outlets, the first scraper 41 is provided with the air channel corresponding to each air outlet, and the outlet of the air channel is located at the lower end of the first scraper 41; and the air bag 48 and the moving plate 48 are in one-to-one correspondence and are provided with three air bags.

[0090] The convex plate 481 is an arc-shaped plate with 5cm high in the middle and 1cm high on both sides, and the lower end of the push rod 47 is higher than the two sides of the convex plate 481;

[0091] The operation method of the device is as follows:

[0092] When the first scraper 41 and the second scraper 42 are operated, the belt 441 moves to drive the push rod 47 to move, the push rod 47 gradually contacts the convex plate 481 and presses down the moving plate 48, the moving plate 48 presses the air bag 49, the air channel sprays gas, the sprayed gas thus dredges the annular filter screen 32, the push rod 47 continues to move and does not contact the convex plate 481, the air bag 49 restores, and the moving plate 48 resets.

Claims

1. A green and portable well-washing device for groundwater monitoring, characterized in that, It includes a well-washing device body (1), a central control system for controlling the well-washing device, a battery for supplying power to the well-washing device, a positioning system for determining the position of the well-washing device body (1), and a measuring instrument for measuring water quality and well-washing pumping volume. The bottom of the main body (1) of the well washing device is equipped with a water pump (2) for pumping water, and the middle part of the main body (1) of the well washing device is equipped with a wastewater filtration and collection mechanism (3) for treating well washing water. The measuring instrument is located at the bottom of the main body (1) of the well washing device. The main body (1) of the well washing device is provided with a spraying assembly (11), a telescopic rod (12) and a water pumping pipe (13). The upper end of the telescopic rod (12) is provided with a motor (14) for rotating it and a placement plate. The placement plate is sleeved on the upper end of the telescopic rod (12) and rotatably connected to it. The motor is set on the placement plate. The lower end of the telescopic rod (12) is fixedly connected to the upper end of the spraying assembly (11). The water pumping pipe (13) extends into the spraying assembly (11) and communicates with the spraying assembly (11). The water pumping pipe (13) is rotatably connected to the spraying assembly (11). The lower end of the water pumping pipe (13) is connected to the water pump (2). The wastewater filtration and collection mechanism (3) is provided with an outlet pipe (35) for transporting the treated wastewater out. The wastewater filtration and collection mechanism (3) includes a cylinder (31), an annular filter screen (32) and an activated carbon layer (33). The annular filter screen (32) is located on the upper part of the cylinder (31), and the activated carbon layer (33) is located inside the cylinder (31) below the annular filter screen (32). A liquid level sensor is provided on the side wall of the cylinder (31) located below the activated carbon layer (33); the central control system is electrically connected to the positioning system, the measuring instrument, and the water pump (2); The spraying assembly (11) includes a spraying cylinder (111) and a spray pipe (112) disposed on the side wall of the spraying cylinder (111). The spray pipe (112) is provided in three groups from top to bottom, and each group is provided with four pipes at equal intervals in the circumference. The annular filter screen (32) is provided with a scraping assembly (4). The scraping assembly (4) includes a first scraper (41) for scraping the annular filter screen (32), a second scraper (42) for scraping impurities on one side of the first scraper (41), and a connecting plate (43) located inside the annular filter screen (32). The upper end of the connecting plate (43) is fixedly connected to the bottom of the spray cylinder (111), and the lower end of the connecting plate (43) is fixedly connected to one end of the first scraper (41) away from the connecting plate (43). A pulley assembly (44) is provided on one side of the first scraper (41). The pulley assembly (44) includes a belt (441) and two pulleys (442). The two pulleys (442) are respectively located at both ends of the first scraper (41) and are rotatably connected to the first scraper (41). The two pulleys (442) are respectively located between the outer side of the annular filter screen (32) and the cylinder (31) and between the inner side of the annular filter screen (32) and the water pumping pipe (13). The annular filter screen (32) passes through the middle of the pulley assembly (44). The second scraper (42) is fixedly connected to the belt (441) through a connecting rod (443). The second scraper (42) is located on the other side of the first scraper (41). The bottom of the spray cylinder (111) is provided with a first conical cylinder baffle (45) for diverting flow. The lower end of the conical cylinder baffle (45) is slidably connected to the upper inner surface of the annular filter (32). A second conical cylinder baffle (46) is provided on the inner wall of the cylinder (31) above the outer side of the annular filter (32). A gap is left between the second conical cylinder baffle (46) and the outer side of the annular filter (32). A fixing plate (321) is provided on the outer edge of the annular filter (32) on one side of the scraping assembly (4). The fixing plate (321) is fixedly connected to the inner wall of the cylinder (31). A transmission assembly (5) for rotating the pulley (442) is provided inside the annular filter (32). The transmission assembly (5) includes a conical toothed ring (51) and a rotating shaft (52). The conical toothed ring (51) is located inside the annular filter (32) and is fixedly connected to the annular filter (32). The rotating shaft (52) is rotatably connected to a support member (521) located on one side of the pulley (442). One end of the rotating shaft (52) is provided with a bevel gear (53) that meshes with the conical toothed ring (51) for transmission. The other end of the rotating shaft (52) is provided with a worm gear (54). The pulley (442) is provided with a worm wheel (55) that meshes with the worm gear (54) for transmission. A cylindrical filter (34) is provided vertically inside the cylinder (31) below the annular filter (32), and the bottom of the cylindrical filter (34) is fixedly connected to a support ring (341) provided on the inner wall of the cylinder (31). The lower side wall of the first conical tube baffle (45) is provided with an opening, the diameter of the upper port of the second conical tube baffle (46) is larger than the diameter of the lower port, and the fixing plate (321) and the transmission assembly (5) are located on the same side of the pulley assembly (44); The belt (441) is provided with a push rod (47), and the first scraper (41) located below the belt (441) is provided with an airbag (49). The first scraper (41) located between the airbag (49) and the belt (441) is provided with a pressing component that is slidably connected to the first scraper (41) and is used to squeeze the airbag (49) by relative movement with the push rod (47). The pressing component consists of a moving plate (48) for contacting the airbag (49) and a protruding plate (481) that is perpendicular to the moving plate (48) and slidably connected to the first scraper (41). The airbag (49) is provided with multiple air outlets, and the first scraper (41) is provided with air passages that are correspondingly connected to each air outlet. The outlet of the air passage is located at the lower end of the first scraper (41). The airbag (49) and the moving plate (48) are each provided with multiple airbags.

2. The green and portable well-washing device for groundwater monitoring as described in claim 1, characterized in that, The measuring instrument includes a conductivity measuring module, a temperature measuring module, a pH measuring module, a redox measuring module, a dissolved oxygen measuring module, a turbidity measuring module, and a first storage device. The conductivity measuring module, temperature measuring module, pH measuring module, redox measuring module, dissolved oxygen measuring module, and turbidity measuring module are all electrically connected to the first storage device.

3. The green and portable well-washing device for groundwater monitoring as described in claim 1, characterized in that, The battery has both solar charging and external power charging capabilities.

4. The green and portable well-washing device for groundwater monitoring as described in claim 1, characterized in that, The central control system includes a controller, a second storage device, and a display screen. The second storage device is wirelessly connected to the controller.

5. A method for well washing using the well washing device according to any one of claims 1 to 4, characterized in that, Includes the following steps: S1. Preparation Phase: First, turn on the central control system and positioning system to determine the lower position and depth of the main body (1) of the well washing device, and then put the main body (1) of the well washing device into the groundwater monitoring well; S2, Well washing treatment: When the well is started, the central control system controls the water pump to start, and pumps the wastewater in the monitoring well to the wastewater filtration and collection mechanism (3) for filtration and collection. The pumping is repeated many times to clean the well. S3. Water quality measurement: When the water volume extracted during well washing is 1 times the volume of water in the well, the central control system controls the water quality and well washing pumping volume measuring instrument to measure the oxidation-reduction potential, dissolved oxygen, and turbidity values ​​of the water in the well. The detected values ​​are stored in the first storage device and transmitted to the central control system. If the requirements are met, the central control system controls the water quality and well washing pumping volume measuring instrument to measure the changes in conductivity, temperature, pH, oxidation-reduction potential, dissolved oxygen, and turbidity multiple times. The changes in the values ​​are compared by the central control system to see if they meet the requirements. If the requirements are not met, when the water volume extracted during well washing is 3 to 5 times the volume of water in the well, the portable water quality measuring instrument is used again to measure the values. If the measurement results meet the requirements, the well washing process ends.

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