CN115078679A - Groundwater environment detection device and system - Google Patents
Groundwater environment detection device and system Download PDFInfo
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- CN115078679A CN115078679A CN202210995817.1A CN202210995817A CN115078679A CN 115078679 A CN115078679 A CN 115078679A CN 202210995817 A CN202210995817 A CN 202210995817A CN 115078679 A CN115078679 A CN 115078679A
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Abstract
The invention provides a device and a system for detecting underground water environment, which relate to the technical field of water quality detection and comprise: the device comprises a buoyancy unit, a connecting line unit and a detection unit; the buoyancy unit includes: a circuit compartment and a buoyancy compartment; the detection unit includes: a water quality detection sensor; the buoyancy unit is connected with the detection unit through a connecting line unit; the circuit cabin is positioned at the far end of the connecting wire unit relative to the buoyancy cabin; a main control circuit is arranged in the circuit cabin; the interior of the buoyancy cabin is an empty cabin, and the shell of the buoyancy cabin is made of metal iron; the device supports a wireless input method to measure the water environment of the water body to be measured, and gets rid of the constraint of wired cables. After the detection is finished, the recovery work of the underground water environment detection device can be realized by utilizing the magnetic attraction between the magnetic recoverer and the buoyancy cabin. The underground water environment detection device has the advantages that the size of the underground water environment detection device is effectively reduced, the underground water environment detection device is light and easy to carry, working steps of paying off and taking up are reduced, and the field working efficiency is effectively improved.
Description
Technical Field
The invention relates to the technical field of water quality detection, in particular to a device and a system for detecting an underground water environment.
Background
Be applied to the water quality testing appearance of secret moisture layer monitoring well in the existing market and mostly correspond a water quality sensor by a host computer, the host computer is subaerial at the monitoring well head, transfers the probe to the aquatic of monitoring well through the data line, carries out water quality measurement. The water quality detector is large in size and not easy to carry, and particularly when underground water in a plurality of well pipes of the continuous multi-channel monitoring well is measured, most of underground water quality detectors rely on manual paying-off and taking-up to complete measurement of underground water quality in the well pipes, so that time and labor are wasted, and the working efficiency is low.
Disclosure of Invention
The invention aims to provide a device and a system for detecting an underground water environment, which are used for improving the working efficiency of underground water environment detection work.
In a first aspect, the present invention provides an underground water environment detection apparatus, comprising: the device comprises a buoyancy unit, a connecting line unit and a detection unit; the buoyancy unit includes: a circuit compartment and a buoyancy compartment; the detection unit includes: a water quality detection sensor; the buoyancy unit is connected with the detection unit through the connecting line unit; the circuit cabin is positioned at the far end of the connecting wire unit relative to the buoyancy cabin; a main control circuit is arranged in the circuit cabin; the interior of the buoyancy cabin is an empty cabin, and the shell of the buoyancy cabin is made of metal iron; the connecting line unit adopts a hard connecting line and is used for keeping the buoyancy unit and the detection unit at a fixed distance and establishing a communication link for the buoyancy unit and the detection unit; after the underground water environment detection device is thrown into a water body, the buoyancy cabin is used for suspending the circuit cabin on the water surface by means of the buoyancy of water; the water quality detection sensor is used for detecting water quality to obtain water quality index data and sending the water quality index data to the main control circuit through the connecting line unit; the main control circuit is used for storing the water quality index data; and after the water quality detection is finished, the underground water environment detection device is recovered by utilizing the magnetic attraction generated by the magnetic recoverer and the buoyancy cabin.
In an alternative embodiment, the buoyancy unit further comprises: an auxiliary compartment; the auxiliary cabin is positioned at the proximal end of the connecting line unit relative to the buoyancy cabin; the upper part of the auxiliary cabin is connected with the buoyancy cabin; the upper surface of the auxiliary cabin is made of smooth soft materials; the surface of the lower part of the auxiliary cabin is made of a rough soft material; a mechanical telescopic structure is arranged in the auxiliary cabin; the main control circuit is connected with the mechanical telescopic structure and used for sending a telescopic instruction to the mechanical telescopic structure under the condition that the water quality detection is determined to be finished; the mechanical telescopic structure is used for switching from an extension state to a contraction state according to the telescopic instruction so as to enable the auxiliary cabin to expand around the central point as the axial direction.
In an optional embodiment, the detection unit further comprises: a water level sensing device; the water level sensing device is positioned at the near end of the connecting wire unit; the water level sensing device is connected with the main control circuit and used for sending a sensing signal to the main control circuit under the condition of contacting water; the main control circuit is used for sending a detection instruction to the water quality detection sensor based on the induction signal so as to enable the water quality detection sensor to start to measure the water quality.
In an optional embodiment, the detection unit further comprises: a conductivity sensor and a temperature sensor; the water quality detection sensor, the conductivity sensor and the temperature sensor are arranged in the detection unit in a serial connection mode; the conductivity sensor is connected with the main control circuit and used for measuring the conductivity of the water body and sending conductivity data to the main control circuit through the connecting line unit; the temperature sensor is connected with the main control circuit and used for measuring the temperature of the water body and sending temperature data to the main control circuit through the connecting line unit; the master control circuit is used for storing the conductivity data and the temperature data.
In an optional embodiment, the detection unit further comprises: a signal conditioning circuit; the signal conditioning circuit is respectively connected with the water quality detection sensor, the conductivity sensor and the temperature sensor, and is used for performing data format conversion on the water quality index data, the conductivity data and the temperature data to obtain target data which accords with specified protocol transmission, and sending the target data to the main control circuit; the main control circuit is used for storing the target data.
In an optional embodiment, an audible and visual alarm device is arranged on the outer shell of the buoyancy unit; the main control circuit is connected with the sound-light alarm device and used for sending an alarm instruction to the sound-light alarm device under the condition that the water quality detection is determined to be finished; and the sound-light alarm device is used for carrying out sound-light alarm according to the alarm instruction.
In an alternative embodiment, the circuit compartment comprises: a circuit board compartment and a battery compartment; the master control circuit includes: a main control circuit board and a battery; the main control circuit board is placed in the circuit board cabin; the battery is placed inside the battery compartment.
In an alternative embodiment, the water quality detection sensor is a detachable structure.
In an alternative embodiment, the water quality detection sensor comprises one of the following: PH sensors, dissolved oxygen sensors, and ORP sensors.
In a second aspect, the present invention provides a groundwater environment detection system including the groundwater environment detection apparatus according to any one of the above embodiments, further including: an upper computer and a magnetic recoverer; the upper computer is connected with the underground water environment detection device and is used for sending a control instruction to the underground water environment detection device; wherein the control instruction carries a data acquisition rule and an end condition of data acquisition; the groundwater environment detection device is used for detecting the water quality of the groundwater environment based on the control instruction and storing detection data; the magnetic recoverer is used for generating magnetic attraction with a buoyancy cabin in the underground water environment detection device so as to recover the underground water environment detection device.
The invention provides a groundwater environment detection device, comprising: the device comprises a buoyancy unit, a connecting line unit and a detection unit; the buoyancy unit includes: a circuit compartment and a buoyancy compartment; the detection unit includes: a water quality detection sensor; the buoyancy unit is connected with the detection unit through a connecting line unit; the circuit cabin is positioned at the far end of the connecting wire unit relative to the buoyancy cabin; a main control circuit is arranged in the circuit cabin; the interior of the buoyancy cabin is an empty cabin, and the shell of the buoyancy cabin is made of metal iron; the connecting line unit adopts a hard connecting line and is used for keeping the buoyancy unit and the detection unit at a fixed distance and establishing a communication link for the buoyancy unit and the detection unit; after the groundwater environment detection device is thrown into a water body, the buoyancy cabin is used for suspending the circuit cabin on the water surface by means of the buoyancy of water; the water quality detection sensor is used for detecting water quality to obtain water quality index data and sending the water quality index data to the main control circuit through the connecting line unit; the main control circuit is used for storing the water quality index data; after the water quality detection is finished, the magnetic force generated by the magnetic recoverer and the buoyancy cabin is used for attracting, and the groundwater environment detection device is recovered.
The underground water environment detection device provided by the invention supports a wireless input method to measure the water environment of the water body to be detected, namely, a connecting cable between the underground water environment detection device and the ground is not required to be arranged, so that the constraint of a wired cable is eliminated. After detection is finished, the recovery work of the underground water environment detection device can be realized by utilizing the magnetic attraction between the magnetic recoverer and the buoyancy cabin. Compared with the prior art, the underground water environment detection device has the advantages that the size of the underground water environment detection device is effectively reduced, the underground water environment detection device is light and easy to carry, and the working steps of paying off and taking up all the measurement monitoring well pipes are reduced in the measurement, so that the field working efficiency is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an underground water environment detection device provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a buoyancy unit according to an embodiment of the present invention;
FIG. 3 is a schematic view of an auxiliary compartment provided in an embodiment of the present invention in a different state;
fig. 4 is a schematic structural diagram of a detection unit according to an embodiment of the present invention;
FIG. 5 is a schematic view of a prior art construction of a continuous multi-channel well tubular;
FIG. 6 is a schematic structural view of an alternative buoyancy unit provided by embodiments of the present invention;
FIG. 7 is a schematic diagram of a continuous multi-channel well tubular with groundwater environment detection apparatus for performing detection work according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a method for recovering a groundwater environment detection device in a continuous multi-channel well pipe according to an embodiment of the present invention;
FIG. 9 is a schematic view of a method for recovering groundwater environment detection apparatus in a well pipe according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The underground water is an important component of water resources, and plays an extremely important role in the aspects of ensuring the drinking water safety of people, promoting the development of economic society, maintaining the ecological balance of a system and the like. In order to know and master the dynamic change characteristics of groundwater, scientifically evaluate groundwater resources, formulate a reasonable development, utilization and protection scheme, reduce and prevent groundwater pollution and environmental problems, and establish a groundwater monitoring network to monitor groundwater is an extremely important means. The current hydrogeological survey work has gradually developed towards refinement and research. The underground water monitoring is gradually developed from the traditional mixed monitoring to the layered monitoring and the single-parameter monitoring to the multi-parameter monitoring, and in the aspect of underground water layered monitoring, an underground water monitoring well is gradually developed towards the small-diameter direction, if the drift diameter of a continuous multi-channel pipe layered monitoring well channel is about 30mm, the underground water layered automatic monitoring and the field detection need to be realized, and various technical problems need to be solved.
The existing underground water detector has the advantages that the diameter of a multi-parameter sensor probe is large, the multi-parameter sensor probe can only be used in a conventional large-diameter underground water monitoring well, and the multi-parameter sensor probe is not suitable for a small-diameter underground water stratification monitoring well. If the measurement is carried out in a small-diameter underground water layer monitoring well, only a water quality detector for detecting a single water quality index is available at present, for example, only the conductivity can be measured. Especially, when underground water in a plurality of well pipes of a continuous multi-channel monitoring well is measured, most of underground water quality in the well pipes is measured by manually paying off and taking up wires, so that the time and labor are wasted, and only water quality parameters of single indexes of underground water in a plurality of layers can be measured.
If through groundwater sampling, measure again, need be equipped with multiple equipment such as sampling pump, carry inconveniently, need rely on artifical pump receiving of putting down in the use, work efficiency is very low. Especially, the water sample of the underground water is pumped to the ground, and the risk that the water sample is polluted when being exposed in the atmospheric environment is increased.
The prior art lacks the field detection technology and device which are matched with the small-diameter underground water monitoring well, and particularly the prior underground water continuous multi-channel monitoring well is widely used in China, but has no matched underground water field detection instrument. In view of the above, the present invention provides an underground water environment detection device for detecting a narrow aperture, so as to alleviate the above-mentioned technical problems.
Example one
Fig. 1 is a schematic structural diagram of an underground water environment detection device provided in an embodiment of the present invention, and as shown in fig. 1, the underground water environment detection device includes: the device comprises a buoyancy unit, a connecting line unit and a detection unit; the buoyancy unit includes: a circuit compartment and a buoyancy compartment; the detection unit includes: a water quality detection sensor.
The buoyancy unit is connected with the detection unit through a connecting line unit; the circuit cabin is positioned at the far end of the connecting wire unit relative to the buoyancy cabin; a main control circuit is arranged in the circuit cabin; the interior of the buoyancy cabin is an empty cabin, and the shell of the buoyancy cabin is made of metal iron.
The connecting line unit adopts a hard connecting line, is used for keeping the buoyancy unit and the detection unit at a fixed distance, and establishes a communication link for the buoyancy unit and the detection unit.
After the groundwater environment detection device is thrown into a water body, the buoyancy cabin is used for suspending the circuit cabin on the water surface by means of the buoyancy of water.
The water quality detection sensor is used for detecting water quality to obtain water quality index data, and the water quality index data is sent to the main control circuit through the connecting line unit.
The main control circuit is used for storing the water quality index data.
After the water quality detection is finished, the magnetic force generated by the magnetic recoverer and the buoyancy cabin is used for attracting, and the groundwater environment detection device is recovered.
Based on the above description of the groundwater environment detection device provided by the embodiment of the invention, the device mainly comprises three parts: the device comprises a buoyancy unit, a connecting line unit and a detection unit. The connecting line unit is the connecting piece between buoyancy unit and the detecting element, and the connecting line unit is the stereoplasm connecting wire, has certain hardness and intensity to make its buoyancy unit and the detecting element who connects keep fixed distance throughout, the connecting line unit can establish communication link for buoyancy unit and detecting element simultaneously, so that carry out data interaction communication between the two. That is, the link unit mainly plays a role of fixing and data communication in the device. The embodiment of the invention does not specifically limit the length of the connecting line unit, and a user can select the connecting line unit according to actual requirements.
When underground water sampling is carried out, a water sample at a position 50cm below the water surface is generally selected to be collected, and the water body at the depth basically cannot be influenced by the external environment, so that the sum of the length of the connecting line, the length of the detection unit and the length of the buoyancy unit entering water is kept at about 50cm, namely, when the device works in the water body, the water sample at a position 50cm below the water surface is collected by the water quality detection sensor. Alternatively, the length of the connecting wire unit is set to 30 cm.
The water quality detection sensor in the detection unit is used for detecting the water quality of the underground water environment and sending a detection result to the main control circuit in the buoyancy unit, and the main control circuit has a storage function and can store received water quality index data. Optionally, a TF memory card is built in the main control circuit to store the real-time field detection data.
The underground water environment detection device provided by the embodiment of the invention supports a wireless investment mode to measure the underground water environment, on one hand, a main control circuit can store the measurement data of the sensor, and after the device is recovered, the connection with an upper computer through a communication interface is supported, so that the data is transmitted to the upper computer; on the other hand, even if the underground water environment detection device is thrown into water by the buoyancy of the buoyancy chamber, the device can be suspended on the water surface (the circuit chamber is located above the water surface) by the buoyancy generated by the water.
Specifically, the master control circuit that the circuit cabin of buoyancy unit was placed is responsible for coordinating the operation of whole device, can communicate with the host computer to send and receive and data round of order, the buoyancy cabin is empty cabin, plays the effect of weight reduction increase water buoyancy, makes whole device float on the surface of water. The inner layer of the buoyancy cabin shell is made of metal iron so as to be convenient for generating magnetic attraction with the magnetic recoverer. Furthermore, in order to prolong the service life of the device, a waterproof coating, such as a polyethylene coating with a specified thickness, is arranged on the outermost side of the buoyancy unit, so that the waterproof effect can be achieved, and the magnetic attraction of the buoyancy chamber by the magnet is not influenced.
The detection device provided by the embodiment of the invention is not provided with a connecting cable to be connected with the ground, so that after the water quality detection is finished, the groundwater environment detection device can be recovered by utilizing the magnetic attraction generated by the magnetic recoverer and the buoyancy cabin. If the device is put in a plurality of aquifers of the continuous multi-channel pipe, the detection devices in a plurality of well pipes can be simultaneously recovered only by putting the magnetic recoverer in the well pipe positioned in the center and lifting the magnetic recoverer upwards.
The groundwater environment detection device provided by the embodiment of the invention supports a wireless input method to measure the water environment of the water body to be detected, namely, a connecting cable between the groundwater environment detection device and the ground is not required to be arranged, so that the restriction of a wired cable is eliminated. After the detection is finished, the recovery work of the underground water environment detection device can be realized by utilizing the magnetic attraction between the magnetic recoverer and the buoyancy cabin. Compared with the prior art, the underground water environment detection device has the advantages that the size of the underground water environment detection device is effectively reduced, the underground water environment detection device is light and easy to carry, and the working steps of paying off and taking up all the measurement monitoring well pipes are reduced in the measurement, so that the field working efficiency is effectively improved.
In an alternative embodiment, as shown in fig. 2, the buoyancy unit further comprises: an auxiliary compartment; the auxiliary cabin is located at the proximal end of the connecting line unit relative to the buoyancy cabin.
The upper part of the auxiliary cabin is connected with the buoyancy cabin; the upper surface of the auxiliary cabin is made of smooth soft material; the surface of the lower part of the auxiliary cabin is made of rough soft material; the interior of the auxiliary compartment is provided with a mechanically telescopic structure.
The main control circuit is connected with the mechanical telescopic structure and used for sending a telescopic instruction to the mechanical telescopic structure under the condition that the water quality detection is determined to be completed.
The mechanical telescopic structure is used for switching from an extension state to a contraction state according to a telescopic instruction so as to enable the auxiliary cabin to expand around the central point as the axial direction.
Fig. 3 is a schematic view of an auxiliary compartment provided in an embodiment of the present invention in different states. Under a normal state, the mechanical telescopic structure in the auxiliary cabin is in an extension state, and at the moment, the auxiliary cabin is slender in shape; after the water quality detection work is finished, the mechanical telescopic structure is switched to a contracted state according to a telescopic instruction, at the moment, the upper and lower different soft materials are expanded around the auxiliary cabin center point as the axial direction, the rough part is arranged below, and the smooth part is arranged above.
The surface of the upper half part of the auxiliary cabin is made of smooth waterproof soft materials, and even if the auxiliary cabin is in contact with the wall of a well pipe, the generated friction force is small; the surface of the lower half part of the auxiliary cabin is made of rough waterproof soft materials, and the friction force generated when the auxiliary cabin is in contact with the wall of the well pipe is large. Optionally, the soft smooth material may be a smooth Polyethylene (PE) material. The rough soft material can be selected from synthetic rubber with a textured surface. Further, in order to facilitate the connection between the auxiliary compartment and the adjacent component, the head and the tail of the auxiliary compartment may also be made of a hard material, such as ABS plastic or stainless steel.
In the embodiment of the invention, the auxiliary cabin of the buoyancy unit plays an auxiliary role in the ascending or descending process of the whole device, specifically, when the water quality is measured, the device needs to be put down into a well pipe, and in the process of descending and immersing into a water body, the mechanical telescopic structure is in an extension state, the auxiliary cabin is slender in shape, and the diameter of the auxiliary cabin is smaller than that of the well pipe, so that the device can not be obstructed when being put down, and can normally descend and immerse into water to detect the water quality of underground water. When the detection is finished, the mechanical telescopic structure in the auxiliary cabin is converted into a contracted state from an expanded state, and as the length of the mechanical telescopic structure is shortened, the soft material in the middle part expands outwards, the rough soft material is arranged at the lower part, and the smooth soft material is arranged at the upper part. When the device is recovered, the device is attracted by magnetic force to move upwards along the well pipe, the smooth soft material at the upper part overturns and contacts with the wall of the well pipe, the generated friction force is small, and the device is prevented from being subjected to large resistance in the upwards moving process. If the device is accidentally dropped in the ascending process, when the device moves downwards, the rough soft material at the lower part of the auxiliary cabin can overturn and contact with the wall of the well pipe to generate larger friction force, so that the device is subjected to large resistance, and the device is further kept suspended at a certain position in the well pipe and does not continuously drop downwards.
In an alternative embodiment, as shown in fig. 4, the detection unit further includes: a water level sensing device; the water level sensing device is positioned at the near end of the connecting wire unit.
The water level sensing device is connected with the main control circuit and used for sending a sensing signal to the main control circuit under the condition that the water level sensing device is contacted with water.
The main control circuit is used for sending a detection instruction to the water quality detection sensor based on the induction signal so as to enable the water quality detection sensor to start to measure the water quality.
Specifically, when the water level sensing device is in an atmospheric environment, no action (no sensing signal) occurs; when the water body enters, the induction action is triggered to generate an induction signal. The water level sensing device is arranged on the detection unit and is positioned at the near end of the connecting line unit, namely, the water level sensing device can sense whether the whole detection unit enters the water body, after the detection unit is determined to be completely immersed in the water body, a sensing signal is sent to the main control circuit to inform the system of the state of starting measurement, and at the moment, the main control circuit sends a detection instruction to the water quality detection sensor so that the water quality detection sensor starts to measure the water quality.
In an optional embodiment, the detection unit further comprises: conductivity sensors and temperature sensors.
The water quality detection sensor, the conductivity sensor and the temperature sensor are arranged in the detection unit in a serial connection mode.
The conductivity sensor is connected with the main control circuit and used for measuring the conductivity of the water body and sending the conductivity data to the main control circuit through the connecting line unit.
The temperature sensor is connected with the main control circuit and used for measuring the temperature of the water body and sending the temperature data to the main control circuit through the connecting line unit.
The master control circuit is used for storing the conductivity data and the temperature data.
FIG. 5 is a schematic view showing the structure of a continuous multi-channel well pipe in the prior art, wherein the diameter of the continuous multi-channel well pipe is very small, most of the well pipes are not round, the middle of the central well pipe is a regular hexagon, and other well pipes around the central well pipe are irregular trapezoid-like structures. Theoretically, the probe with the diameter of 2.5cm can be accepted to the maximum, and the diameter of the whole device cannot exceed 2cm when the practical application condition is considered and the whole device is ensured to work normally in the well pipe. Due to this, the existing water quality detecting instrument probes on the market are difficult to place in the well pipe, and especially the water quality probes capable of measuring multiple indexes are blank.
In order to reduce the diameter of the detection unit as much as possible and ensure that the detection unit can be used in a small-diameter well pipe, particularly a continuous multi-channel monitoring well, the embodiment of the invention arranges the water quality detection sensor, the conductivity sensor and the temperature sensor in the detection unit in a serial connection mode, namely, the sensor electrodes are arranged in a combined mode according to the upper position and the lower position, although the length of the probe is increased, the diameter of the detection unit can be ensured not to be increased and to be as small as possible.
Optionally, the temperature sensor is a platinum resistance temperature sensor, which can accurately measure the temperature of the water body, and further has a temperature compensation effect on the obtained groundwater quality parameters. In the detection unit provided in fig. 4, the conductivity sensor is fixed at the upper position, and the water quality detection sensor and the temperature sensor are fixed at the lower position.
In an alternative embodiment, the water quality detection sensor is a detachable structure. The water quality detection sensor comprises one of the following components: PH sensors, dissolved oxygen sensors, and ORP sensors.
In the embodiment of the invention, the water quality detection sensor is designed into a detachable and replaceable structure, the connector of the sensor is designed into a standardized connection structure, so that a worker can select a pH electrode (namely, a pH value sensor), an ORP electrode (namely, an ORP sensor) or a dissolved oxygen electrode (namely, a dissolved oxygen sensor) to replace according to the requirements of a use scene, different measurement index probes are combined on the basis of measuring the conductivity, sensor combined electrodes with different measurement parameters are flexibly matched, the requirement of diversified measurement is met, and the main environmental pollution parameters of the water body can be more flexibly measured.
In an optional embodiment, the detection unit further comprises: a signal conditioning circuit.
The signal conditioning circuit is respectively connected with the water quality detection sensor, the conductivity sensor and the temperature sensor and is used for carrying out data format conversion on the water quality index data, the conductivity data and the temperature data to obtain target data which accords with the transmission of a specified protocol and sending the target data to the main control circuit.
The main control circuit is used for storing the target data.
Specifically, in order to improve the compatibility of data, after the measurement is completed, each sensor in the detection unit performs a series of processing on the data detected by each sensor through the signal conditioning circuit to generate a standard digital signal (that is, the target data in the foregoing text), for example, the data is uniformly converted into a digital signal conforming to the standard Modbus 485 standard protocol, and then the standard digital signal is sent to the main control circuit (specifically, the memory in the main control circuit) through the cable to be stored.
In an alternative embodiment, as shown in fig. 6, the circuit bay includes: a circuit board compartment and a battery compartment; the master control circuit includes: a main control circuit board and a battery; the main control circuit board is arranged in the circuit board cabin; the battery is placed in the battery compartment.
Specifically, the battery can provide necessary power supply for the whole device, and in consideration of the working principle of the whole underground water environment detection device, the battery cabin is arranged at the upper part of the buoyancy cabin in the embodiment of the invention, because the upper part of the buoyancy cabin is not submerged in water but floats on the water surface and is not in direct contact with the water body when the device works, the device has higher waterproof reliability, and the problems of water leakage caused by long-time submergence in the water body, power supply short circuit and the like are prevented. Optionally, the battery portion is a replaceable lithium battery. The independent setting of battery cabin can be for the device change battery provide convenience. The connection between the units/cabins in the embodiment of the invention can be realized by screw connection and can also be bonded by waterproof glue.
In an alternative embodiment, the housing of the buoyancy unit is provided with an audible and visual alarm.
The main control circuit is connected with the sound-light alarm device and used for sending an alarm instruction to the sound-light alarm device under the condition that the water quality detection is determined to be finished.
The sound-light alarm device is used for carrying out sound-light alarm according to the alarm instruction.
Specifically, audible and visual alarm device can set up the combination of warning LED lamp and bee calling organ/loudspeaker, and when main control circuit confirmed that water quality testing accomplished, control audible and visual alarm device sent the prompt tone, and the flash light of simultaneous control is opened to remind the staff, inform detection achievement. In the embodiment of the invention, the condition that the main control circuit determines that the water quality detection is finished can be that the test time meets the specified requirement, or that the received test data meets the specified data volume.
The general continuous multi-channel well comprises 7 well pipes, the middle part is 1, the periphery is 6, the middle well pipe is empty, an aquifer monitoring well is not constructed, and for the recovery work of the underground water environment detection device, the following two optional implementation modes are provided in the embodiment of the invention.
The first embodiment: when the number of the aquifers of the monitoring well to be detected is more than one, underground water is contained in a plurality of well pipes, and the empty well pipe positioned in the center is used as a magnetic recoverer. The magnetic recoverer can be put into a middle empty well pipe, 6 water-bearing stratum well pipes on the periphery are put into the groundwater environment detection device towards a target monitoring well pipe, after the measurement is completed, the magnetic recoverer can be manually or automatically and slowly lifted, the magnetic recoverer has magnetism, when the magnetic recoverer is close to a buoyancy cabin, the buoyancy cabin with the device put into the surrounding well pipes is attracted by magnetic force, and due to the attraction of the magnetic force, the device can be lifted together with the recoverer until the mouth of the well pipe is exposed, as shown in fig. 7 and 8.
The second mode is as follows: and after the device is contacted with the upper part of the buoyancy cabin, the magnetic recoverer is lifted, and the device is attracted by magnetic force and ascends to the opening of the well pipe along with the attraction, as shown in figure 9.
For convenience of understanding, the following description will be given by way of example of a method for detecting water quality by applying the groundwater environment detection device provided by the embodiment of the invention to a continuous multi-channel well pipe.
Step 1) putting the magnetic recoverer into a central well pipe of the continuous multi-channel well, slowly descending, and ensuring that the magnetic recoverer is placed at a position lower than the water level in other well pipes.
And 2) configuring the electrode type of the water quality detection sensor according to the monitored water quality parameters, keeping the detection device started to be in an initial state, and putting the device into a well pipe of a target aquifer. The user can plunge one or more devices into the continuous multi-channel well tubular depending on the actual situation.
And 3) after the device is put into a well pipe, the detection unit positioned at the front end contacts the water surface firstly and then slowly descends, and after the detection unit is completely immersed into the water, the water level sensing switch is triggered to send a signal to inform the device of entering a working state for measuring the water quality after 1 minute. Because the device will continue to slowly descend at this time, after the buoyancy compartment enters a part of the water, the buoyancy is equal to the gravity, and the device is suspended in the water. In order to keep the water body in a stable state, reliable measurement data are obtained, and the time is set to be 1 minute, so that the requirement can be met.
And 4) when the water quality parameters are measured, acquiring data once at intervals of 10 seconds, and acquiring data for N times in total. N =10, the measured data are arranged from small to large, the 2 minima and the 2 maxima are removed, and then the numerical arithmetic mean of N-4 is calculated. This eliminates sample value deviations due to occasional pulse disturbances.
And 5) after the underground water quality parameters are collected, the audible and visual alarm on the buoyancy unit sends out beeping sound and light flashing to prompt workers to finish detection work, meanwhile, the auxiliary cabin is converted from an extension state to a contraction state, the length of the auxiliary cabin is shortened, the soft material in the middle part expands outwards, the rough soft material is on the lower part, and the smooth soft material is on the upper part. Therefore, the device is guaranteed to move upwards, is not influenced to be lifted to a wellhead by small friction, and can be guaranteed not to drop by large friction force if moving downwards.
And 6) slowly lifting the magnetic recoverer to the wellhead manually or automatically, and driving the device to be lifted to the wellhead together by magnetic attraction when the buoyancy cabin of the device in the surrounding well pipe is close to the buoyancy cabin, so that a worker can perform treatment.
In summary, the groundwater environment detection device provided by the embodiment of the invention ensures the smallest external diameter size as possible by connecting the plurality of sensor electrodes in series, and can flexibly configure the water quality sensor to measure various groundwater water quality parameter indexes. The magnetic attraction method is adopted, the groundwater quality of 6 well pipes at most can be directly detected at one time according to the characteristics of the continuous multi-channel well pipes, and the use process is simple. The traditional mode that the sensor probe is placed into the water body of the well pipe through the data cable is changed into a cable-free mode, so that the heavy work of cable winding and unwinding is avoided, and the whole device is light and easy to carry. The device supports on-site in-situ detection, the water quality measurement result is real and reliable, and the field work efficiency is greatly improved. The embodiment of the invention provides convenience for water quality detection of the small-diameter underground water monitoring well, can acquire high-quality detection data, and provides practical technology and equipment support for scientific research, environmental protection and prevention and treatment.
Example two
The embodiment of the present invention further provides a groundwater environment detection system, where the groundwater environment detection system includes the groundwater environment detection apparatus provided in the first embodiment, and further includes: an upper computer and a magnetic recoverer.
The upper computer is connected with the underground water environment detection device and is used for sending a control command to the underground water environment detection device; the control instruction carries a data acquisition rule and an end condition of data acquisition. Data collection rules such as data collection intervals, end conditions of data collection such as total number of data collected, and time length of collection.
The underground water environment detection device is used for detecting the water quality of the underground water environment based on the control instruction and storing detection data.
The magnetic recoverer is used for generating magnetic attraction with a buoyancy cabin in the underground water environment detection device so as to recover the underground water environment detection device.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "suspended" and the like do not imply that the components are absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An underground water environment detection device, comprising: the device comprises a buoyancy unit, a connecting line unit and a detection unit; the buoyancy unit includes: a circuit compartment and a buoyancy compartment; the detection unit includes: a water quality detection sensor;
the buoyancy unit is connected with the detection unit through the connecting line unit; the circuit cabin is positioned at the far end of the connecting wire unit relative to the buoyancy cabin; a main control circuit is arranged in the circuit cabin; the interior of the buoyancy cabin is an empty cabin, and the shell of the buoyancy cabin is made of metal iron;
the connecting line unit adopts a hard connecting line and is used for keeping the buoyancy unit and the detection unit at a fixed distance and establishing a communication link for the buoyancy unit and the detection unit;
after the underground water environment detection device is thrown into a water body, the buoyancy cabin is used for suspending the circuit cabin on the water surface by means of the buoyancy of water;
the water quality detection sensor is used for detecting water quality to obtain water quality index data and sending the water quality index data to the main control circuit through the connecting line unit;
the main control circuit is used for storing the water quality index data;
and after the water quality detection is finished, the underground water environment detection device is recovered by utilizing the magnetic attraction generated by the magnetic recoverer and the buoyancy cabin.
2. A groundwater environment detecting device as claimed in claim 1, wherein the buoyancy unit further comprises: an auxiliary compartment; the auxiliary cabin is positioned at the proximal end of the connecting line unit relative to the buoyancy cabin;
the upper part of the auxiliary cabin is connected with the buoyancy cabin; the upper surface of the auxiliary cabin is made of smooth soft materials; the surface of the lower part of the auxiliary cabin is made of a rough soft material; a mechanical telescopic structure is arranged inside the auxiliary cabin;
the main control circuit is connected with the mechanical telescopic structure and used for sending a telescopic instruction to the mechanical telescopic structure under the condition that the water quality detection is determined to be finished;
the mechanical telescopic structure is used for switching from an extension state to a contraction state according to the telescopic instruction so as to enable the auxiliary cabin to expand around the central point as the axial direction.
3. A groundwater environment detection apparatus as claimed in claim 1, wherein the detection unit further comprises: a water level sensing device; the water level sensing device is positioned at the near end of the connecting line unit;
the water level sensing device is connected with the main control circuit and used for sending a sensing signal to the main control circuit under the condition of contacting water;
the main control circuit is used for sending a detection instruction to the water quality detection sensor based on the induction signal so as to enable the water quality detection sensor to start to measure water quality.
4. A groundwater environment detecting device according to claim 1, wherein the detecting unit further includes: a conductivity sensor and a temperature sensor;
the water quality detection sensor, the conductivity sensor and the temperature sensor are arranged in the detection unit in a serial connection mode;
the conductivity sensor is connected with the main control circuit and used for measuring the conductivity of the water body and sending conductivity data to the main control circuit through the connecting line unit;
the temperature sensor is connected with the main control circuit and used for measuring the temperature of the water body and sending temperature data to the main control circuit through the connecting line unit;
the master control circuit is used for storing the conductivity data and the temperature data.
5. A groundwater environment detection apparatus as claimed in claim 4, wherein the detection unit further comprises: a signal conditioning circuit;
the signal conditioning circuit is respectively connected with the water quality detection sensor, the conductivity sensor and the temperature sensor, and is used for performing data format conversion on the water quality index data, the conductivity data and the temperature data to obtain target data which accords with specified protocol transmission, and sending the target data to the main control circuit;
the main control circuit is used for storing the target data.
6. A groundwater environment detection device as claimed in claim 1, wherein a sound and light alarm device is provided on a housing of the buoyancy unit;
the main control circuit is connected with the sound-light alarm device and used for sending an alarm instruction to the sound-light alarm device under the condition that the water quality detection is determined to be finished;
and the sound-light alarm device is used for carrying out sound-light alarm according to the alarm instruction.
7. A groundwater environment detection apparatus as claimed in claim 1, wherein the circuit compartment comprises: a circuit board compartment and a battery compartment; the master control circuit includes: a main control circuit board and a battery;
the main control circuit board is placed in the circuit board cabin; the battery is placed inside the battery compartment.
8. A groundwater environment detecting device as claimed in claim 1, wherein the water quality detecting sensor is a detachable structure.
9. A groundwater environment detection apparatus as claimed in claim 1, wherein the water quality detection sensor comprises one of: PH sensors, dissolved oxygen sensors, and ORP sensors.
10. A groundwater environment detection system comprising the groundwater environment detection apparatus as claimed in any one of claims 1 to 9, further comprising: an upper computer and a magnetic recoverer;
the upper computer is connected with the underground water environment detection device and is used for sending a control instruction to the underground water environment detection device; wherein the control instruction carries a data acquisition rule and an end condition of data acquisition;
the groundwater environment detection device is used for detecting the water quality of the groundwater environment based on the control instruction and storing detection data;
the magnetic recoverer is used for generating magnetic attraction with a buoyancy cabin in the underground water environment detection device so as to recover the underground water environment detection device.
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| CN115078679B (en) | 2022-11-08 |
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