A water quality monitoring method of a groundwater environment monitoring well, a storage medium and an equipment

Abstract

The present application relates to the technical field of ultrasonic dredging, and particularly relates to a water quality monitoring method for a groundwater environment monitoring well, a storage medium and equipment, and the specific method comprises the following steps: S1, installing an ultrasonic dredging device; S2, using a water quality monitor to measure initial water quality parameters Z of the kth monitoring k ; S3, if Z k <=M, then k=k+1, and returning to S2; otherwise, S4 is entered; S4 comprises: S4.1, starting a gas supply device and an ultrasonic transducer to perform qth dredging operation, and stopping after running for a time t; S4.2, using the water quality monitor to measure real-time water quality parameters S q of the groundwater environment monitoring well; S4.3, if S q >M, then Z k =S q , q=q+1, and t=2t, and returning to S4.1; if M<=S q <=Z k , then t=t / 2, q=q+1, and returning to S4.1; if S q The present application is simple to operate, and can improve dredging efficiency while ensuring dredging effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultrasonic dredging, in particular to a water quality monitoring method for a groundwater environment monitoring well, a storage medium and equipment. BACKGROUND

[0002] Groundwater is an important part of water resources. Groundwater monitoring not only provides data support for scientific acquisition of groundwater resources, but also provides data guarantee for rational development and utilization of groundwater. It is one of the work objects of hydrogeological and environmental geological departments to investigate and monitor. At present, setting a large number of shallow groundwater environment quality monitoring wells is the main way and means to monitor groundwater.

[0003] The inventor found the following problems in the process of implementing the present application.

[0004] 1) The groundwater environment monitoring well set at the present stage belongs to a small-diameter shallow groundwater environment monitoring well. The well wall is mostly protected by a PVC pipe. Since the monitored aquifer is mainly composed of Quaternary loose rocks, it is generally prone to siltation, which directly affects the sample quality and even makes it impossible to take water quality samples.

[0005] 2) The drilling type dredging method is commonly used at the present stage. It uses a drilling platform to drill and dredge slag, or combines with an air compressor for high-pressure flushing. When the method and equipment are used for dredging operation, the force is large, and it is difficult to control the operation force in deep wells. It is not suitable for monitoring wells with small-diameter PVC pipe walls. On the one hand, it is easy to damage the PVC pipe wall, resulting in the direct scrapping of the monitoring well and the reconstruction, causing serious economic losses. On the other hand, the existing method and equipment are not convenient for observing whether the water quality in the monitoring well is turbid and whether the pipe wall is silted during operation. The dredging efficiency is low. On the other hand, the traditional drilling dredging method equipment is mostly large equipment. Groundwater environment monitoring wells are mostly set in places where transportation is not convenient or the region is not open, which is not conducive to dredging operation.

[0006] 3) The dredging means and device are separated at the present stage. It depends entirely on the experience of the operator, has no operation scale, and is too strong in randomness, making it difficult to realize automatic operation. SUMMARY

[0007] The present application aims to provide a water quality monitoring method for a groundwater environment monitoring well, a storage medium and equipment, which aims to solve the problems of complex operation and low work efficiency of the existing dredging method. The specific technical solutions are as follows:

[0008] The present application provides a water quality monitoring method for a groundwater environment monitoring well, comprising the following steps:

[0009] S1: installing an ultrasonic dredging device in a certain groundwater environment monitoring well, wherein: the ultrasonic dredging device comprises a mounting seat, an air bag, an ultrasonic transducer, a water quality monitor and a gas supply device, the mounting seat is arranged in the groundwater environment monitoring well, the air bag, the ultrasonic transducer and the water quality monitor are all hung in the groundwater environment monitoring well through the mounting seat, the gas supply device is in communication with the air bag, and the gas supply device is used for inflating or deflating the air bag to drive the ultrasonic transducer to approach or move away from the well wall of the groundwater environment monitoring well;

[0010] S2: measuring the initial water quality parameter Z of the kth monitoring of the groundwater environment monitoring well by the water quality monitor k ; wherein: k is a natural number greater than 0;

[0011] S3: judging: if Z k ≤M, then k=k+1, and returning to S2; otherwise, entering S4; wherein: M is the threshold value of the water quality parameter;

[0012] S4: performing dredging operation on the groundwater environment monitoring well by the ultrasonic transducer, specifically:

[0013] S4.1, starting the gas supply device and the ultrasonic transducer to start the qth dredging operation, and turning off the external power supply and the ultrasonic transducer after the running time t of the ultrasonic transducer;

[0014] S4.2, measuring the real-time water quality parameter S of the groundwater environment monitoring well at this time by the water quality monitor q ;

[0015] S4.3, judging: if S q >M, then Z k =S q , q=q+1, t=2t, and returning to S4.1; if M≤S q ≤Z k , then t=t / 2, q=q+1, and returning to S4.1; if S q <M, then the dredging operation is completed.

[0016] Optionally, in S4.1, the gas supply device can intermittently inflate or deflate the air bag, and simultaneously drive the ultrasonic transducer to intermittently approach or move away from the well wall of the groundwater environment monitoring well, so as to realize pulsed dredging.

[0017] Optionally, the ultrasonic dredging device further comprises a first pressure sensor and a second pressure sensor electrically connected with the gas supply device respectively, the first pressure sensor is arranged in the air bag and is used for detecting the change of air pressure inside the air bag; the second pressure sensor is hung in the groundwater environment monitoring well and is arranged at a position corresponding to the maximum size of the air bag;

[0018] In the S4.1, the specific steps of the air supply device for intermittently inflating or deflating the air bag are as follows:

[0019] ①, the maximum threshold and the minimum threshold of the first pressure sensor and the second pressure sensor are set respectively, when the detection value of the first pressure sensor and the second pressure sensor is lower than the minimum threshold, the signal value is 0, the signal value between the minimum threshold and the maximum threshold is 2, and when the maximum threshold is reached, it is 1;

[0020] ②, start the air supply device to inflate or deflate the air bag according to the signal value of the first pressure sensor and the second pressure sensor, specifically:

[0021] When the signal value of the first pressure sensor and the second pressure sensor is 0, the air supply device starts to inflate the air bag, and the air bag starts to expand to drive the ultrasonic transducer close to the well wall of the underground water environment monitoring well;

[0022] When the air bag inflates to abut against the well wall, the detection value of the first pressure sensor is between the minimum threshold and the maximum threshold, and the signal value is 2, the detection value of the second pressure sensor reaches the maximum threshold, and the signal value switches to 1, the air supply device continues to inflate the air bag;

[0023] When the air bag inflates to the maximum size, the detection value of the first pressure sensor reaches the maximum threshold, and the signal value switches to 1, the signal value of the second pressure sensor is 1, and the air supply device starts to deflate the air bag;

[0024] When the detection value of the first pressure sensor and the second pressure sensor is lower than the minimum threshold, the signal value is 0, and the air supply device starts to inflate the air bag.

[0025] Optionally, the water quality parameter is any one or more of turbidity, color, pH value, conductivity value, dissolved oxygen value and oxidation-reduction potential.

[0026] Optionally, at least two installation rods are formed on the mounting seat and arranged at intervals, and the installation rods are arranged in the depth direction of the underground water environment monitoring well; the ultrasonic dredging device further comprises a scraper seat and an elastic member, the scraper seat is slidably arranged on the two installation rods, and the scraper seat is in abutment with the air bag; the scraper seat is used for scraping the well wall of the underground water environment monitoring well; the elastic member is sleeved on the installation rod, one end of the elastic member is connected with the mounting seat, and the other end is connected with the scraper seat; when the air bag is intermittently inflated or deflated, the scraper seat can be driven to move reciprocally in the vertical direction.

[0027] Optionally, the scraper seat comprises a mounting body and a plurality of scrapers, the mounting body is slidably connected with the installation rod, and a through hole is formed in the mounting body; the scrapers are inclined upward in the horizontal direction, and the plurality of scrapers are arranged in the circumferential direction of the mounting body.

[0028] Optionally, the number of ultrasonic transducers is multiple, and the multiple ultrasonic transducers are arranged in the vertical direction in the underground water environment monitoring well.

[0029] Optionally, the ultrasonic dredging device further comprises a liquid flow pipe and a water pump, the liquid flow pipe is hung on the mounting seat, one end of the liquid flow pipe is communicated with the water pump through the mounting seat, and the other end extends to the bottom wall of the underground water environment monitoring well.

[0030] Before measuring the water quality parameter by the water quality monitor, the water pump is started to inject water into the underground water environment monitoring well through the liquid flow pipe for dilution until the water surface covers the water quality monitor; in S4.2, when M≤S q ≤Z k the water pump is started to pump out the water in the underground water environment monitoring well through the liquid flow pipe, and then water is injected into the underground water environment monitoring well for dilution until the water surface covers the water quality monitor, and then the process returns to S4.1.

[0031] The application discloses a readable storage medium, which stores computer program instructions, and when the computer program instructions are executed by a processor, the water quality monitoring method of the underground water environment monitoring well is realized.

[0032] The application discloses an electronic device, which comprises at least one processor, at least one memory and computer program instructions stored in the memory, and when the computer program instructions are executed by the processor, the water quality monitoring method of the underground water environment monitoring well is realized.

[0033] The application discloses an electronic device, which comprises at least one processor, at least one memory and computer program instructions stored in the memory, and when the computer program instructions are executed by the processor, the water quality monitoring method of the underground water environment monitoring well is realized.

[0034] In addition to the purposes, features and advantages described above, the application has other purposes, features and advantages. The application will be further described below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0035] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the application and, together with the description, serve to explain the application. In the drawings:

[0036] Figure 1 is a structural schematic diagram of the ultrasonic dredging device in the embodiment of the application;

[0037] Figure 2 is Figure 1 A-A sectional view in

[0038] Figure 3 is Figure 2 B-B sectional view in

[0039] BRIEF DESCRIPTION OF DRAWINGS

[0040] 1, mounting seat, 1.1, mounting rod, 2, air bag, 3, ultrasonic transducer, 4, water quality monitor, 5, first pressure sensor, 6, second pressure sensor, 7, liquid flow pipe, 8, scraper seat, 8.1, scraper, 9, elastic member. DETAILED DESCRIPTION

[0041] The embodiments of the application will be described in detail below with reference to the accompanying drawings, but the application can be implemented in various different ways within the scope of the claims.

[0042] As shown in Figures 1 to 3 , the embodiment provides a water quality monitoring method for a groundwater environment monitoring well, and an ultrasonic dredging device is used for dredging operation, and the method is characterized in that the method comprises the following steps:

[0043] S1: installing an ultrasonic dredging device in a certain groundwater environment monitoring well, wherein the ultrasonic dredging device comprises a mounting seat 1, an air bag 2, an ultrasonic transducer 3, a water quality monitor 4 and a gas supply device, the mounting seat 1 is arranged in the groundwater environment monitoring well, the air bag 2, the ultrasonic transducer 3 and the water quality monitor 4 are all hung in the groundwater environment monitoring well through the mounting seat 1, the gas supply device is in communication with the air bag 2, and the gas supply device is used for inflating or deflating the air bag 2 to drive the ultrasonic transducer 3 to approach or move away from the well wall of the groundwater environment monitoring well; the air bag 2 and the ultrasonic transducer 3 abut to drive the ultrasonic transducer 3 to intermittently approach or move away from the well wall of the groundwater environment monitoring well along with the air bag 2; the air bag 2, the ultrasonic transducer 3 and the water quality monitor 4 are all connected with the mounting seat 1 through flexible ropes to be hung in the groundwater environment monitoring well.

[0044] S2: measuring an initial water quality parameter Zk of the kth monitoring of the groundwater environment monitoring well by using the water quality monitor 4; wherein k is a natural number greater than 0;

[0045] S3: judging whether Z kIf M, then let k=k+1 and return to S2; otherwise, enter S4; wherein: M is a threshold value of the water quality parameter;

[0046] S4: The ultrasonic transducer 3 is used to carry out the desilting operation on the groundwater environment monitoring well, specifically:

[0047] S4.1, turn on the gas supply device and the ultrasonic transducer 3 to start the qth desilting operation, and turn off the external power supply and the ultrasonic transducer 3 after the ultrasonic transducer 3 runs for a time t;

[0048] In S4.1, the gas supply device can intermittently inflate or deflate the air bag 2, while driving the ultrasonic transducer 3 to intermittently approach or move away from the well wall of the groundwater environment monitoring well, so as to realize pulsed desilting.

[0049] The ultrasonic desilting device further comprises a first pressure sensor 5 and a second pressure sensor 6 electrically connected with the gas supply device respectively, the first pressure sensor 5 is arranged in the air bag 2 and is used to detect the change of the air pressure inside the air bag 2; the second pressure sensor 6 is hung in the groundwater environment monitoring well and is arranged at a position corresponding to the maximum size of the air bag 2;

[0050] In S4.1, the specific steps of the gas supply device intermittently inflating or deflating the air bag 2 are as follows:

[0051] ①, set the maximum threshold value and the minimum threshold value of the first pressure sensor 5 and the second pressure sensor 6 respectively, when the detection value of the first pressure sensor 5 and the second pressure sensor 6 is lower than the minimum threshold value, the signal value is 0, between the minimum threshold value and the maximum threshold value, the signal value is 2, and when reaching the maximum threshold value, it is 1;

[0052] ②, start the gas supply device to intermittently inflate or deflate the air bag 2 according to the signal value of the first pressure sensor 5 and the second pressure sensor 6, specifically:

[0053] When the signal values of the first pressure sensor 5 and the second pressure sensor 6 are both 0, the gas supply device starts to inflate the air bag 2, and the air bag 2 starts to expand to drive the ultrasonic transducer 3 to approach the well wall of the groundwater environment monitoring well;

[0054] When the air bag 2 inflates and expands to abut against the well wall, the detection value of the first pressure sensor 5 is between the minimum threshold value and the maximum threshold value and the signal value is 2, the detection value of the second pressure sensor 6 reaches the maximum threshold value and the signal value switches to 1, and the gas supply device continues to inflate the air bag 2; the air bag 2 is long strip-shaped, after the air bag 2 inflates and expands to abut against the well wall, it continues to expand along the length direction to push the scraper seat 8 to move downward.

[0055] When the air bag 2 is inflated to the maximum size, the detection value of the first pressure sensor 5 reaches the maximum threshold value and the signal value is switched to 1, the signal value of the second pressure sensor 6 is 1, and the air supply device starts to deflate the air bag 2.

[0056] When the detection values of the first pressure sensor 5 and the second pressure sensor 6 are both lower than the minimum threshold value, the signal value is 0, and the air supply device starts to inflate the air bag 2.

[0057] In this embodiment, the power supply device is electrically connected with the first pressure sensor 5 and the second pressure sensor 6 through the controller, so as to realize intermittent inflation or deflation of the air bag according to the signal values of the first pressure sensor 5 and the second pressure sensor 6.

[0058] S4.2, the real-time water quality parameter S of the underground water environment monitoring well at this time is measured by the water quality monitor 4 q ;

[0059] S4.3, judgment is made: if S q >M, Z k =S q , q=q+1, t=2t, return to S4.1; if M≤S q ≤Z k , t=t / 2, q=q+1, return to S4.1; if S q <M, the dredging operation is completed.

[0060] For example, well one: the diameter of the underground water environment monitoring well is 75mm, the depth is 15 meters; the water quality parameter is turbidity, the threshold value M of the water quality parameter is 10NTU; the initial t is 60ms;

[0061] For example, well one: the diameter of the underground water environment monitoring well is 110mm, the depth is 10 meters; the water quality parameter is pH value, the threshold value M of the water quality parameter is 6.5; the initial t is 90ms;

[0062] In the dredging operation, the ultrasonic dredging device is only needed to be installed in the underground water environment monitoring well to realize the automatic dredging operation of the underground water environment monitoring well, and the operation is simple; the gas supply equipment is used to inflate and deflate the air bag 2 to drive the ultrasonic transducer 3 to approach or move away from the well wall of the underground water environment monitoring well, so as to facilitate dredging, and the working time of the gas supply equipment and the ultrasonic transducer 3 can be adjusted according to the real-time water quality parameters in the dredging operation, so that the working time can be flexibly adjusted according to the actual operation condition to improve the adaptability; and the dredging operation can be avoided to affect the working efficiency and cause the waste of energy, or the dredging operation is not thorough to affect the dredging effect, to avoid rework, and the dredging efficiency can be improved while ensuring the dredging effect. The dredging device and method provided in the embodiment can overcome the error of personnel operation, eliminate the hidden danger of low efficiency and inaccuracy caused by the manual visual method to judge whether the underground water environment monitoring well is silted or needs to be dredged and maintained; when the dredging operation is performed, the force is small, the operation force of the deep well is easy to control, the PVC pipe is not easy to damage, whether the water quality in the monitoring well is turbid or the pipe wall is silted can be easily judged, the dredging efficiency is improved, and the economic loss caused by the direct scrapping of the monitoring well due to the dredging operation is reduced; the volume of the complete equipment is reduced, which is very suitable for the operation of the underground water environment monitoring well in the place where the traffic is not convenient or the region is not wide, and automation can be easily realized.

[0063] In the embodiment, the water quality parameter is any one and more of the turbidity, the colority, the pH value, the conductivity value, the dissolved oxygen value and the oxidation-reduction potential. In the dredging operation, the water quality parameter can be detected by the water quality monitor 4, the effect of the dredging operation can be directly reflected, the time of the dredging operation can be accurately controlled, the energy can be saved while ensuring the dredging effect and the working efficiency. The use of multiple parameters as the water quality parameter in the embodiment can effectively avoid the situation that the single parameter measurement is inaccurate in the operation process and affects the operation effect, and is conducive to ensuring the stability of the water quality detection result. In the embodiment, the water quality monitor 4 at least includes one and more of the turbidity sensor, the colority sensor, the pH value sensor, the conductivity value sensor, the dissolved oxygen value sensor and the oxidation-reduction potential sensor. In the dredging operation, the corresponding water quality monitor needs to be set according to the selected different water quality parameters.

[0064] In the embodiment, at least two installation rods 1.1 are formed on the installation base 1 and are arranged at intervals, and the installation rods 1.1 extend along the depth direction of the underground water environment monitoring well; the ultrasonic dredging device further comprises a scraper seat 8 and an elastic member 9, the scraper seat 8 is slidingly arranged on the two installation rods 1.1, and the scraper seat 8 is in abutment with the air bag 2, the scraper seat 8 is used for scraping silt on the well wall of the underground water environment monitoring well; the elastic member 9 is sleeved on the installation rod 1.1, one end of the elastic member 9 is connected with the installation base 1, and the other end is connected with the scraper seat 8; when the air bag 2 is intermittently inflated or deflated, the scraper seat 8 can be driven to reciprocate along the vertical direction. When the air bag 2 is inflated to the maximum size, the scraper seat 8 can be pushed to the bottom end of the installation rod 1.1, and when the air bag 2 is deflated, the scraper seat 8 moves upward along the installation rod 1.1 under the elastic force of the elastic member 9, and under the cooperation of the air bag 2 and the elastic member 9, the scraper seat 8 can reciprocate along the vertical direction in the underground water environment monitoring well, so that the vertical dredging operation is realized, and the dredging operation effect is improved.

[0065] In the embodiment, the scraper seat 8 comprises a mounting body and a plurality of scraper blades 8.1, the mounting body is slidingly connected with the installation rod 1.1, and a through hole is formed in the mounting body; the scraper blades 8.1 are arranged in the horizontal direction and are inclined upward, and the plurality of scraper blades 8.1 are arranged in the circumferential direction of the mounting body. The through hole is formed in the mounting body to reduce the resistance of the mounting body in water during the dredging operation, and the inclined arrangement of the scraper blades 8.1 can disperse the force when the scraper blades 8.1 contact the silt on the well wall, and increase the contact area, so as to facilitate scraping the silt.

[0066] In the embodiment, the number of the ultrasonic transducers 3 is multiple, and the multiple ultrasonic transducers 3 are arranged at intervals in the vertical direction in the underground water environment monitoring well. The multiple ultrasonic transducers 3 can effectively improve the dredging efficiency, and when the scraper seat 8 reciprocates along the vertical direction, the through hole on the scraper seat 8 can allow the ultrasonic transducers 3 to pass through.

[0067] In the embodiment, the ultrasonic dredging device further comprises a liquid flow pipe 7 and a water pump, the liquid flow pipe 7 is hung on the installation base 1, one end of the liquid flow pipe 7 communicates with the water pump through the installation base 1, and the other end extends to the bottom wall of the underground water environment monitoring well.

[0068] Before the water quality monitor 4 measures the water quality parameter, the water pump needs to be started to inject water into the underground water environment monitoring well through the liquid flow pipe 7 for dilution until the water surface covers the water quality monitor 4; in S4.2, when M≤S q ≤Z k , the water pump needs to be started to pump out the water in the underground water environment monitoring well through the liquid flow pipe 7, then water is injected into the underground water environment monitoring well for dilution until the water surface covers the water quality monitor 4, and then the process returns to S4.1.

[0069] The embodiment also includes a readable storage medium, which stores computer program instructions, and when the computer program instructions are executed by a processor, the water quality monitoring method of the groundwater environment monitoring well is realized.

[0070] It should be noted that the above-described device embodiments are only illustrative, wherein the units described as separate components can or can not be physically separated, and the components displayed as units can or can not be physical units, i.e., they can be located in one place or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment according to actual needs. In addition, the connection relationship between the modules in the device embodiment provided by the present application indicates that there is a communication connection between them, which can be implemented as one or more communication buses or signal lines. Those skilled in the art can understand and implement it without creative labor.

[0071] The embodiment also includes an electronic device, which includes at least one processor, at least one memory, and computer program instructions stored in the memory, and when the computer program instructions are executed by the processor, the mining slope stability analysis method is realized.

[0072] For example, the computer program can be divided into one or more modules / units, which are stored in the memory and executed by the processor to complete the present application. The one or more modules / units can be a series of computer program instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program in the electronic device.

[0073] The electronic device can be a mobile phone, a desktop computer, a notebook computer, a palm computer, a cloud server and other computing devices. The electronic device can include, but is not limited to, a processor, a memory. For example, the electronic device can also include an input / output device, a network access device, a bus, etc.

[0074] The processor can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The processor is a control center of the electronic device, and connects various parts of the electronic device through various interfaces and lines.

[0075] The memory can be used to store the computer program and / or modules, and the processor realizes the computer program by running or executing the computer program and / or modules stored in the memory, and calling data stored in the memory. The memory can mainly include a program storage area and a data storage area. The program storage area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.), etc.; and the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a nonvolatile memory, for example, a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one disk storage device, a flash memory device, or other volatile solid-state memory device.

[0076] The modules / units integrated in the electronic device, if realized in the form of software function units and sold or used as independent products, can be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a readable storage medium. When the computer program is executed by a processor, the steps of the above-mentioned various method embodiments can be realized. The computer program includes computer program code, which can be in the form of source code, object code, executable files or some intermediate forms, etc. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content included in the computer readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

[0077] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water quality monitoring method for a groundwater environment monitoring well, which adopts an ultrasonic dredging device for dredging operation, characterized by, The method comprises the following steps: S1: installing an ultrasonic dredging device in a certain groundwater environment monitoring well, wherein the ultrasonic dredging device comprises a mounting seat (1), an air bag (2), an ultrasonic transducer (3), a water quality monitor (4) and a gas supply device, the mounting seat (1) is arranged in the groundwater environment monitoring well, the air bag (2), the ultrasonic transducer (3) and the water quality monitor (4) are all hung in the groundwater environment monitoring well through the mounting seat (1), the gas supply device is in communication with the air bag (2), and the gas supply device is used for inflating or deflating the air bag (2) to drive the ultrasonic transducer (3) to approach or move away from the well wall of the groundwater environment monitoring well; S2: using the water quality monitor (4) to measure the initial water quality parameter Z of the kth monitoring of the groundwater environment monitoring well k ; wherein: k is a natural number greater than 0; S3: make a judgment: if Z k ≤ M, then let k = k + 1, and return to S2; otherwise, enter S4; wherein: M is a threshold value of the water quality parameter; S4: using the ultrasonic transducer (3) to perform dredging operation on the groundwater environment monitoring well, specifically: S4.1, starting the gas supply device and the ultrasonic transducer (3) to start the qth dredging operation, and turning off the external power supply and the ultrasonic transducer (3) after the ultrasonic transducer (3) runs for a time t; S4.2, the real-time water quality parameter S of the groundwater environment monitoring well at this time is measured by using the water quality monitor (4) q ; S4.3, judge: if S q >M, let Z k =S q , q=q+1, t=2t, return to S4.1; if M≤S q ≤Z k , let t=t / 2, q=q+1, return to S4.1; if S q <M, complete the dredging work.

2. The water quality monitoring method of a groundwater environment monitoring well according to claim 1, characterized by, In the S4.1, the gas supply device can intermittently inflate or deflate the air bag (2), and simultaneously drive the ultrasonic transducer (3) to intermittently approach or move away from the well wall of the groundwater environment monitoring well, so as to realize pulsed dredging.

3. The water quality monitoring method of a groundwater environment monitoring well according to claim 2, characterized by, The ultrasonic dredging device further comprises a first pressure sensor (5) and a second pressure sensor (6) electrically connected with the gas supply device respectively, the first pressure sensor (5) is arranged in the air bag (2) and is used for detecting the change of the air pressure in the air bag (2), and the second pressure sensor (6) is hung in the groundwater environment monitoring well and is arranged at a position corresponding to the maximum size of the air bag (2); In the S4.1, the specific steps of the gas supply device intermittently inflating or deflating the air bag (2) are as follows: ①, the maximum threshold and the minimum threshold of the first pressure sensor (5) and the second pressure sensor (6) are set respectively, when the detection value of the first pressure sensor (5) and the second pressure sensor (6) is lower than the minimum threshold, the signal value is 0, the signal value is 2 between the minimum threshold and the maximum threshold, and when the maximum threshold is reached, the signal value is 1; ②, starting the gas supply device to intermittently inflate or deflate the air bag (2) according to the signal value of the first pressure sensor (5) and the second pressure sensor (6), specifically: when the signal value of the first pressure sensor (5) and the second pressure sensor (6) is 0, the gas supply device starts to inflate the air bag (2), and the air bag (2) starts to expand to drive the ultrasonic transducer (3) to approach the well wall of the groundwater environment monitoring well; when the air bag (2) inflates and expands to abut against the well wall, the detection value of the first pressure sensor (5) is between the minimum threshold and the maximum threshold, the signal value is 2, the detection value of the second pressure sensor (6) reaches the maximum threshold, and the signal value is switched to 1, and the gas supply device continues to inflate the air bag (2); when the air bag (2) inflates and expands to the maximum size, the detection value of the first pressure sensor (5) reaches the maximum threshold, the signal value is switched to 1, the signal value of the second pressure sensor (6) is 1, and the gas supply device starts to deflate the air bag (2). When the detection values of the first pressure sensor (5) and the second pressure sensor (6) are both lower than the minimum threshold value, the signal value is 0, and the air supply device starts to inflate the air bag (2).

4. The water quality monitoring method of a groundwater environment monitoring well according to claim 3, characterized by, The water quality parameter is any one or more of turbidity, chroma, pH value, conductivity value, dissolved oxygen value, and oxidation-reduction potential.

5. The water quality monitoring method of a groundwater environment monitoring well according to any one of claims 1 to 4, characterized by, The mounting seat (1) is formed with at least two mounting rods (1.1) arranged at intervals and extending in the depth direction of the groundwater environment monitoring well; the ultrasonic dredging device further comprises a scraper seat (8) and an elastic member (9), the scraper seat (8) is slidingly arranged on the two mounting rods (1.1), and the scraper seat (8) is in abutment with the air bag (2); the scraper seat (8) is used for scraping silt from the well wall of the groundwater environment monitoring well; the mounting rod (1.1) is sleeved with the elastic member (9), one end of the elastic member (9) is connected with the mounting seat (1), and the other end is connected with the scraper seat (8); when the air bag (2) is intermittently inflated or deflated, the scraper seat (8) can be driven to reciprocate in the vertical direction.

6. The water quality monitoring method of a groundwater environment monitoring well according to any one of claims 1 to 4, characterized by, The scraper seat (8) comprises a mounting body and a plurality of scrapers (8.1), the mounting body is slidingly connected with the mounting rod (1.1), and a through hole is formed in the mounting body; the scrapers (8.1) are inclined upward in the horizontal direction, and the plurality of scrapers (8.1) are arranged in the circumferential direction of the mounting body.

7. The method of water quality monitoring of a groundwater environment monitoring well according to any one of claims 1 to 4, characterized by, The number of the ultrasonic transducers (3) is multiple, and the multiple ultrasonic transducers (3) are arranged in the vertical direction in the groundwater environment monitoring well.

8. The method of water quality monitoring of a groundwater environment monitoring well according to any one of claims 1 to 4, characterized by, The ultrasonic dredging device further comprises a liquid flow pipe (7) and a water pump, the liquid flow pipe (7) is hung on the mounting seat (1), one end of the liquid flow pipe (7) communicates with the water pump through the mounting seat (1), and the other end extends to the bottom wall of the groundwater environment monitoring well; Before measuring water quality parameters by the water quality monitor (4), the water injection pump is started to inject water into the groundwater environment monitoring well through the liquid flow pipe (7) for dilution until the water surface covers the water quality monitor (4); in S4.2, when M≤S q ≤Z k , the water injection pump is started to pump out the water in the groundwater environment monitoring well through the liquid flow pipe (7) and then inject water into the groundwater environment monitoring well for dilution until the water surface covers the water quality monitor (4), and then return to S4.

1.

9. A readable storage medium, characterized by, The computer program instructions stored thereon, when executed by a processor, implement the water quality monitoring method of the groundwater environment monitoring well according to any one of claims 1 to 8.

10. An electronic device, comprising: The computer program instructions stored in the memory, when executed by the processor, implement the water quality monitoring method of the groundwater environment monitoring well according to any one of claims 1 to 8. The computer program instructions stored in the memory, when executed by the processor, implement the water quality monitoring method of the groundwater environment monitoring well according to any one of claims 1 to 8.

Images