CN111896771B - Underground water fluidity detection device and detection method - Google Patents
Underground water fluidity detection device and detection method Download PDFInfo
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- CN111896771B CN111896771B CN202010781771.4A CN202010781771A CN111896771B CN 111896771 B CN111896771 B CN 111896771B CN 202010781771 A CN202010781771 A CN 202010781771A CN 111896771 B CN111896771 B CN 111896771B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
- G01P13/04—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement
- G01P13/045—Indicating positive or negative direction of a linear movement or clockwise or anti-clockwise direction of a rotational movement with speed indication
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Abstract
The application provides a device and a method for detecting mobility of underground water, and belongs to the technical field of underground water detection. The detection device comprises a first mounting part, a direction indicator, a deflection part, an ultraviolet light source and a camera; the deflecting piece is connected to the first mounting piece and is used for deflecting under the action of water flow; the direction indicator is arranged on the first mounting piece, and the indication direction of the direction indicator is always kept unchanged; the direction indicator and the deflection piece are both provided with fluorescent marks; ultraviolet source and the piece of making a video recording all set up on first installed part, and the piece of making a video recording is used for the position of record direction indicator and deflection piece and rotates to the rivers direction that measures the groundwater that awaits measuring with the contained angle between the groundwater flow direction parallel direction indicator and the deflection piece that awaits measuring through the deflection piece. The detection device has simple structure, the detection method is convenient and quick, complex calculation is not needed, and radioactive elements or other tracers are not needed to be added separately in the determination process.
Description
Technical Field
The invention relates to the field of underground water detection, in particular to an underground water fluidity detection device and a detection method.
Background
The groundwater seepage velocity and the groundwater seepage direction are two important dynamic parameters in the research of the groundwater seepage field, and are main parameters for measuring hydrogeological parameters such as the permeability coefficient and the seepage quantity of an aquifer. The traditional method for measuring the flow rate and the flow direction of the groundwater is to arrange drill holes along the flow direction on the basis of knowing the geological conditions of the researched area and the approximate flow direction of the groundwater, and then measure the flow rate of the groundwater through a pumping test. The method has the advantages of large workload, long construction period and complicated process.
In view of this, the present application is specifically made.
Disclosure of Invention
An object of the present invention includes providing an apparatus and a method for detecting mobility of underground water to solve the above technical problems.
The application can be realized as follows:
in a first aspect, the present application provides a groundwater flow performance detection device, including a first mounting member, a direction indicator, a deflection member, an ultraviolet light source, and a camera.
The deflector is connected to the first mounting member and is adapted to deflect under the influence of water flow.
The direction indicator is arranged on the first mounting part, and the indication direction of the direction indicator is always kept unchanged.
The direction indicator and the deflection member are provided with fluorescent markers.
Ultraviolet source and the piece of making a video recording all set up on first installed part, and the piece of making a video recording is used for the position of record direction indicator and deflection piece and rotates to the rivers direction that measures the groundwater that awaits measuring with the contained angle between the groundwater flow direction parallel direction indicator and the deflection piece that awaits measuring through the deflection piece.
In an optional embodiment, groundwater flow performance detection device still includes vertical axis of rotation, and vertical axis of rotation is connected in first installed part, and deflection piece fixed connection is in vertical axis of rotation and is used for driving vertical axis of rotation to rotate.
In an alternative embodiment, the first mounting member is frame-shaped, and both ends of the vertical rotation shaft are connected to the frame of the first mounting member.
In an alternative embodiment, the deflector is in the same plane as the vertical axis of rotation.
In an alternative embodiment, the deflector is a deflector plate or a deflector flap;
in alternative embodiments, the deflector is triangular, rectangular or square;
in an alternative embodiment, the number of the deflecting pieces is multiple, and the deflecting pieces are located on the same side of the vertical rotating shaft and in the same plane.
In an alternative embodiment, the groundwater flow performance detection apparatus further comprises a second mounting member, a traverse rotation shaft, a rotation wheel, and a rotation speed measurer.
Second installed part fixed connection is in vertical axis of rotation, and the both ends of horizontal axis of rotation are connected in the second installed part, and the runner rotates to be connected in horizontal axis of rotation and lies in the coplanar with the deflection piece, and the rotational speed caliber sets up in the second installed part and is used for the rotational speed of survey runner in order to record the horizontal velocity of flow of the groundwater that awaits measuring through the rotational speed.
In an alternative embodiment, the second mounting member is frame-shaped, and both ends of the transverse rotation shaft are connected to the frame of the second mounting member.
In an alternative embodiment, the rotation speed measurer is an optoelectronic non-contact rotation speed measurer provided with a transmitter and a receiver, the rotating wheel is provided with a plurality of light holes, the light holes are arranged at equal intervals along the circumferential direction of the rotating wheel, the receiver is used for receiving the light transmission condition of the light holes under the conditions that the transmitter transmits laser and the rotating wheel rotates, so that a signal processor of the optoelectronic non-contact rotation speed measurer generates corresponding pulse information, and the horizontal flow rate of groundwater to be measured is obtained through the number of pulses generated in the measuring time.
In an alternative embodiment, the rim of the runner is provided with fins.
In an alternative embodiment, the number of the fins is plural, and the plural fins are provided at intervals in the circumferential direction of the runner.
In an alternative embodiment, the fins are spoon-shaped.
In an alternative embodiment, the fins are connected to the rim of the wheel by a connecting shank.
In an optional implementation mode, the groundwater flow performance detection device further comprises a positioning assembly, the positioning assembly comprises a first air bag, a second air bag, a first connecting rod and a second connecting rod, the first air bag and the second air bag are arranged oppositely, the first installation part is arranged between the first air bag and the second air bag, the first air bag and the second air bag are both provided with a through part, the first connecting rod penetrates through the through part of the first air bag and is connected with one side, facing the first air bag, of the first installation part, and the second connecting rod penetrates through the through part of the second air bag and is connected with one side, facing the second air bag, of the first installation part.
In an alternative embodiment, the groundwater flow performance detection apparatus further comprises a first inflation line and a second inflation line for inflating the first airbag and the second airbag respectively.
In an alternative embodiment, the first connecting rod is provided with a first passage in the axial direction and a first through hole in the rod wall, the first air bag is provided with a first connecting hole, and the first inflation line passes through the first through hole in the first passage to be connected with the first connecting hole.
In an alternative embodiment, the second connecting rod is provided with a second channel along the axial direction and a second through hole on the rod wall, the second air bag is provided with a second connecting hole, and the second inflation line passes through the second through hole in the second channel and is connected with the second connecting hole.
In an alternative embodiment, the positioning assembly further comprises a pull cord, one end of which passes through the first through hole and is connected with the first mounting element.
In an optional embodiment, the positioning assembly further comprises a gravity piece and a connecting rope, one end of the connecting rope passes through the second through hole and is connected with the first mounting piece, and the other end of the connecting rope is connected with the gravity piece.
In an optional embodiment, the groundwater flow performance detection device further comprises a signal transmission line, one end of the signal transmission line is used for being connected with an external signal display device, and the other end of the signal transmission line is used for passing through the first channel and being connected with the camera.
In an alternative embodiment, when the groundwater flow property detection apparatus includes a measurement tachometer, the signal transmission line is further connected to the measurement tachometer.
In a second aspect, the application further provides a groundwater flow performance detection method, and by means of the groundwater flow performance detection device, the deflection piece is rotated to be parallel to the flow direction of groundwater to be detected under the action of the groundwater to be detected, and the direction indicator piece obtained by the camera under the irradiation of the ultraviolet light source and the included angle between the deflection piece are measured to obtain the water flow direction of the groundwater to be detected.
In an alternative embodiment, when the groundwater flow property detection device further comprises a second mounting member, a transverse rotating shaft, a rotating wheel and a rotating speed measurer, the rotating speed of the rotating wheel is measured by the rotating speed measurer to measure the horizontal flow rate of the groundwater to be measured.
In an alternative embodiment, when the rotation speed measurer is an optoelectronic non-contact rotation speed measurer with a transmitter and a receiver, and the rotating wheel is provided with a plurality of light transmission holes, the light transmission conditions of the light transmission holes under the conditions that the transmitter transmits laser and the rotating wheel rotates are received through the receiver, so that a signal processor of the optoelectronic non-contact rotation speed measurer generates corresponding pulse information, and the horizontal flow rate of the groundwater to be measured is obtained through the number of pulses generated in the measuring time.
In an optional embodiment, when the device for detecting groundwater flowability further comprises a first air bag and a second air bag, after the horizontal flow rate of the groundwater to be detected is measured, the first air bag and the second air bag are deflated, the stable rotating speed of the deflated rotating wheel is measured, and the vertical flow rate of the groundwater to be detected is measured according to the absolute value of the change value of the rotating speed corresponding to the horizontal flow rate and the stable rotating speed of the deflated rotating wheel.
The beneficial effect of this application includes:
the groundwater flow performance detection device provided by the application is simple in structure, the detection method is convenient and fast, complex calculation is not needed, and the water flow direction of groundwater to be detected is obtained by measuring the included angle between the direction indicating piece and the deflection piece, wherein the direction indicating piece and the deflection piece are shot by the camera piece when the deflection piece rotates to be parallel to the groundwater flow direction to be detected under the irradiation of the ultraviolet light source. In the process, the indication direction of the direction indicator is always kept unchanged, so that higher accuracy can be obtained.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of a groundwater flow performance detection apparatus provided in embodiment 1;
FIG. 2 is a schematic structural view of a groundwater flow performance detection apparatus provided in example 2;
FIG. 3 is a schematic structural view of a runner having fins in embodiment 2;
fig. 4 is a schematic structural view of a scoop fin with a stem in example 2.
Icon: 1-a first balloon; 2-a second balloon; 3-a direction indicator; 4-gravity piece; 5-vertical rotating shaft; 6-a first low-drag bearing; 7-a second low resistance bearing; 8-a first mount; 9-a first deflector plate; 11-a fin; 12-a runner; 13-transverse axis of rotation; 14-a third low resistance bearing; 15-a second deflector plate; 16-a second mount; 17-a connecting handle; 18-a light-transmitting hole; 19-a source of ultraviolet light; 20-a camera; 21-a transmitter; 22-a receiver; 23-a signal transmission line; 24-inflation line; 25-a hauling rope.
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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Example 1
Referring to fig. 1, the present embodiment provides a device and a method for detecting groundwater flow performance, where the device includes a first mounting member 8, a direction indicator 3, a deflecting member, an ultraviolet light source 19, and a camera 20. The left and right vertical lines in this figure represent a single borehole.
The deflector is connected to the first mounting member and is adapted to deflect under the influence of water flow.
The direction indicator 3 is arranged on the first mounting part 8 and the indication direction of the direction indicator 3 is always kept unchanged. In an alternative embodiment, the direction indicator 3 may be a compass. The pointer of the compass is provided with a fluorescent mark for indicating the true north direction in the measuring process.
By providing the direction indicator 3 and the deflector with fluorescent markings, the direction indicator 3 and the deflector can be illuminated by the ultraviolet light source 19.
The ultraviolet light source 19 and the camera 20 are both arranged on the first mounting part 8, and the camera 20 is used for recording the positions of the direction indicator 3 and the deflection member.
In an alternative embodiment, the camera 20 may be a miniature camera. The ultraviolet light source 19 is an ultraviolet lamp. The ultraviolet light source 19 and the lens of the camera 20 are both directed downward. Under the irradiation of the ultraviolet light source 19, the pointer of the compass and the fluorescent substance on the upper edge of the deflection plate can emit fluorescence, so that the micro camera can shoot the positions of the deflection plate and the tip of the compass.
Therefore, the water flow direction of the groundwater to be detected is measured through the included angle between the direction indicator 3 and the deflection piece when the deflection piece rotates to be parallel to the flow direction of the groundwater to be detected. It should be noted that the deflector is parallel to the water flow direction when it is rotated in the water flow direction by the water flow until it is no longer rotated.
Further, this groundwater flow performance detection device still can include vertical axis of rotation 5, and vertical axis of rotation 5 is connected in first installed part 8, and deflection piece fixed connection is in vertical axis of rotation 5 and is used for driving vertical axis of rotation 5 to rotate. In alternative embodiments, the first mounting member 8 may have a frame shape, and the frame may have a rectangular shape, and may also have a circular shape, a square shape, a diamond shape, or the like. In this embodiment, a rectangular frame is taken as an example, and includes an upper side frame and left and right side frames. Two ends of the vertical rotating shaft 5 are respectively connected to the upper frame and the lower frame. In reference, both ends of the vertical rotation shaft 5 may be connected to the first mounting part 8 through the first and second low- resistance bearings 6 and 7 so as to rotate freely. The vertical axis of rotation 5 connected to the first mounting 8 divides the first mounting 8 into two small subframes, which may be denoted as first and second subframes, which have the vertical axis of rotation 5 as a common border.
In an alternative embodiment, the deflector is in the same plane as the axis of the vertical axis of rotation 5. The deflector may be plate-like (deflector plate), sheet-like (deflector plate) or in other forms. The shape may be, but is not limited to, triangular, rectangular, or square. The material can be plastic and other light and waterproof materials, so that the water-proof material can be easily driven by water flow.
In alternative embodiments, the number of deflection members may be only 1, or may be multiple. When the number of the deflection pieces is multiple, the deflection pieces are positioned on the same side of the vertical rotating shaft 5 and in the same plane. In a preferred embodiment, the number of deflectors is multiple to increase the thrust.
In this embodiment, for example, the number of the deflection members is 2, and the deflection members are rectangular plate-shaped, the 2 deflection members are respectively marked as a first deflection plate 9 and a second deflection plate 15, the first deflection plate 9 and the second deflection plate 15 are symmetrically connected to the vertical rotation shaft 5 along the horizontal direction, and the 2 deflection plates are located on the same side of the vertical rotation shaft 5 and on the same plane.
In an alternative embodiment, the upper edge of the deflector carries a fluorescent marker.
Further, this groundwater flow performance detection device still includes locating component, locating component includes first gasbag 1, second gasbag 2, head rod and second connecting rod, first gasbag 1 and second gasbag 2 set up relatively and first installed part 8 sets up between first gasbag 1 and second gasbag 2, first gasbag 1 and second gasbag 2 all are equipped with the through part (preferred, the through part sets up in the center of first gasbag 1 and the center of second gasbag 2), the head rod runs through the through part of first gasbag 1 and is connected with one side (the upper ledge) of first installed part 8 towards first gasbag 1, the second connecting rod runs through the through part of second gasbag 2 and is connected with one side (the lower ledge) of first installed part 8 towards second gasbag 2.
Both the first airbag 1 and the second airbag 2 may have a ring shape, and may have other shapes. The first air bag 1 can prevent water on the upper part of the first air bag 1 from flowing downwards after being inflated, and the second air bag 2 can prevent water on the lower part of the second air bag 2 from flowing upwards after being inflated. It is worth mentioning that the diameter of the annular first balloon 1 and the annular second balloon 2 can be the same as the diameter of the underground well, and the annular first balloon and the annular second balloon can abut against the inner wall of the underground well after being inflated.
The end of the first connecting rod used for connecting with the upper frame is further connected with a first fixing piece and a second fixing piece, the other end of the first fixing piece (the end far away from the first connecting rod) is connected with the ultraviolet light source 19 to fix the ultraviolet light source 19, and the other end of the second fixing piece (the end far away from the first connecting rod) is connected with the camera 20 to fix the camera 20.
In an alternative embodiment, the groundwater flow performance detection apparatus further comprises an inflation line 24, and the inflation line 24 comprises a first inflation line and a second inflation line for inflating the first balloon 1 and the second balloon 2, respectively. The other end of the inflation line 24 is adapted to communicate with an external source of air.
In an alternative embodiment, the first connecting rod is provided with a first channel along the axial direction and a first through hole on the rod wall, the first airbag 1 is provided with a first connecting hole, and the first inflation line passes through the first through hole in the first channel and is connected with the first connecting hole to inflate the first airbag 1.
In an alternative embodiment, the second connecting rod is provided with a second channel along the axial direction and a second through hole on the rod wall, the second airbag 2 is provided with a second connecting hole, and the second inflation line passes through the second through hole in the second channel and is connected with the second connecting hole to inflate the second airbag 2.
It should be noted that, inflation holes may also be directly formed in the bag walls of the first airbag 1 and the second airbag 2, and the first inflation line and the second inflation line directly inflate the two airbags through the inflation holes.
Further, the positioning assembly further comprises a pulling rope 25, and one end of the pulling rope 25 passes through the first through hole and is connected with the first mounting part 8 so as to play a role in pulling and supporting the first mounting part 8 and the air bag.
Further, the locating component still includes gravity piece 4 (like the gravity hammer) and connects the rope, connects the one end of rope and passes the second through-hole and be connected with first installed part 8, connects the other end of rope and is connected with gravity piece 4 in order to avoid the gasbag to aerify the back come-up.
In an alternative embodiment, the measuring apparatus further includes a signal transmission line 23, one end of the signal transmission line 23 is used for connecting with an external signal display device (such as a computer, etc.), and the other end is used for connecting with the camera 20 through the first channel.
As can be seen, the signal transmission line 23, the pulling line, the connecting string, and the inflation line 24 corresponding to the first and second through holes may be fixed or sealed to the hole wall by a watertight material.
In summary, the steps of detecting groundwater in this embodiment can refer to the following:
the groundwater flow performance detection device is lowered down the wellbore to a location where groundwater flow is to be detected.
The first airbag 1 and the second airbag 2 are inflated, and water at the upper part and the second lower part of the first airbag 1 is prevented from flowing to the middle of the two airbags.
After the detection device is stabilized, the pointer of the compass indicates the true north direction.
Under the action of water flow, the deflector plate rotates along the water flow direction until the deflector plate is parallel to the water flow direction.
The ultraviolet light source 19 and the micro camera on the upper portion of the first mounting part 8 are started, the micro camera shoots the positions of the deflection plate and the needle point of the compass and uploads the positions to an external signal display device (computer), and the water flow direction of the underground water to be detected can be obtained through the deflection part rotating to be parallel to the flow direction of the underground water to be detected, the direction indicating part 3 and the included angle between the deflection parts.
The ultraviolet light source 19 and the miniature camera are turned off.
And (3) deflating the first air bag 1 and the second air bag 2, and moving the groundwater flow performance detection device out of the well.
Example 2
Referring to fig. 2, the present embodiment provides a device and a method for detecting groundwater flow performance, in which a second mounting member 16, a transverse rotating shaft 13, a rotating wheel 12 and a rotation speed measuring device are added to the device in embodiment 1.
The second mounting member 16 is fixedly connected to the vertical turning shaft 5, and is rotatable together with the vertical turning shaft 5.
As can be appreciated, the second mounting member 16 can be frame-shaped, and the frame can be rectangular, square, circular, diamond-shaped, or the like. In this embodiment, a rectangular frame is taken as an example, and includes an upper side frame and left and right side frames. Both ends of the transverse rotation shaft 13 are connected to the second mounting member 16, specifically, the left and right frames, respectively. Preferably, the transverse rotation axis 13 is arranged along the centre line of the second mounting member 16, i.e. the axis of the transverse rotation axis 13 is collinear with the transverse direction symmetry axis of the second mounting member 16.
The rotating wheel 12 is connected to the transverse rotating shaft 13 and is located on the same plane as the deflecting member, and the rotating speed measurer is disposed on the second mounting member 16 and is used for measuring the rotating speed of the rotating wheel 12 so as to measure the horizontal flow rate of the groundwater to be measured through the rotating speed.
The wheel 12 may, by reference, be made of plastic material, the centre of which is connected to the transverse axis of rotation 13 by a third low resistance bearing 14, so that the wheel 12 is free to rotate.
In an alternative embodiment, the tachometer may be an electro-optical contactless tachometer having a transmitter 21 and a receiver 22. The structure and principle of the photoelectric non-contact type rotating speed measurer can refer to the prior art, and are not described in detail herein.
Preferably, the rotating wheel 12 is provided with a plurality of light holes 18, and the plurality of light holes 18 are arranged at equal intervals along the circumferential direction of the rotating wheel 12, and it can also be understood that the light holes 18 are arranged in a circular shape. The receiver 22 is used for receiving the light transmission condition of the light transmission hole 18 under the condition that the transmitter 21 emits laser and the rotating wheel 12 rotates, so that the signal processor of the photoelectric non-contact type rotating speed measurer generates corresponding pulse information, and the horizontal flow rate of the underground water to be measured can be obtained through the number of pulses generated in the measuring time. That is, when the rotating wheel 12 rotates, the circular holes on the rotating wheel 12 will make the non-contact optoelectronic rotation speed measuring device generate pulses, and record the number of pulses generated within a certain time, i.e. the rotation speed can be measured. It should be noted that the relationship between the rotation speed of the runner 12 and the water flow speed may be measured in a laboratory in advance, and the horizontal flow rate of the groundwater to be measured may be obtained from the rotation speed of the runner 12 when the groundwater to be measured is measured.
Referring again to fig. 3 and 4, in an alternative embodiment, the rim of the runner 12 may be provided with fins 11. The number of the fins 11 is plural. When the number of the fins 11 is plural, the plural fins 11 are provided at equal intervals in the circumferential direction of the runner 12.
The fins 11 may be scooped (as shown in fig. 4), or may be rounded.
In an alternative embodiment, the fins 11 may be connected to the rim of the wheel 12 by a stem 17.
By providing the above-described fins 11, the turning of the runner 12 is further facilitated.
Further, after the horizontal flow rate is measured, the first and second air cells 1 and 2 may be deflated to generate a vertical flow if there is a pressure difference in the groundwater. After the water flow is stabilized, the emitter 21 and the receiver 22 of the rotation speed measurer are turned on, and the rotation speed of the runner 12 under the condition is measured. The rotation speed is increased if the groundwater flows from the top down, and is decreased if the groundwater flows from the top down, and the rotation speed of the runner 12 is converted into a flow speed by a method of measuring a horizontal flow speed. The absolute value of the variation value between the flow velocity and the horizontal flow velocity is the vertical flow velocity.
In summary, the steps of detecting groundwater in this embodiment can refer to the following:
the groundwater flow performance detection device is lowered down the wellbore to a location where groundwater flow is to be detected.
The first airbag 1 and the second airbag 2 are inflated, and water at the upper part and the second lower part of the first airbag 1 is prevented from flowing to the middle of the two airbags.
After the detection device is stabilized, the pointer of the compass indicates the true north direction.
Under the action of water flow, the deflection plate rotates along the water flow direction until the deflection plate is parallel to the water flow direction, and meanwhile, the vertical rotating shaft 5 is driven to rotate, so that the direction of the rotating wheel 12 is parallel to the water flow direction. Under the action of the water flow, the runner 12 starts to rotate.
The ultraviolet light source 19 and the micro camera on the upper part of the first mounting part 8 are started, the micro camera shoots the positions of the deflection plate and the needle point of the compass, the positions are uploaded to an external signal display device (computer) through the signal transmission line 23, and the water flow direction of the underground water to be detected can be obtained through the direction indicating part 3 and an included angle between the deflection parts when the deflection parts rotate to be parallel to the flow direction of the underground water to be detected.
The transmitter 21 and the receiver 22 of the rotation speed measurer are turned on, the rotation speed (rpm) of the rotating wheel 12 is measured, and data can be uploaded to an external signal display device (computer) through a signal transmission line 23. The relationship between the rotational speed of the runner 12 and the water flow rate is measured in advance in a laboratory. And obtaining the horizontal flow velocity of the underground water according to the rotating speed.
The ultraviolet light source 19, the miniature camera and the rotation speed measurer are turned off.
And (3) deflating the first air bag 1 and the second air bag 2, starting a transmitter 21 and a receiver 22 of a rotating speed measurer after the water flow is stable, measuring the stable rotating speed of the deflated rotating wheel 12, and measuring the vertical flow speed of the underground water to be measured according to the absolute value of the change value of the rotating speed corresponding to the horizontal flow speed and the stable rotating speed of the deflated rotating wheel 12.
And moving the groundwater flow performance detection device out of the well.
In summary, the groundwater flow performance detection device provided by the application has a simple structure, the detection method is convenient and fast, no complex calculation is needed, and the water flow direction of the groundwater to be detected is obtained by measuring the included angle between the direction indicator 3 and the deflection piece, which is shot by the camera 20 when the deflection piece rotates to be parallel to the groundwater flow direction to be detected under the irradiation of the ultraviolet light source 19. In the process, the indication direction of the direction indicator 3 is always kept unchanged, so that higher accuracy can be obtained; when the horizontal flow velocity is measured, the interference of vertical flow is eliminated, so that the measurement result is more accurate. Meanwhile, no radioactive element or other tracer is needed to be added in the determination process, and the determination device is not needed to be strictly positioned in the center of the well hole.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (25)
1. The device for detecting the mobility of underground water is characterized by comprising a first mounting piece, a direction indicating piece, a deflection piece, an ultraviolet light source and a camera;
the deflection piece is connected to the first mounting piece and is used for deflecting under the action of water flow;
the direction indicator is arranged on the first mounting piece, and the indication direction of the direction indicator is always kept unchanged;
the direction indicator and the deflection member are provided with fluorescent labels;
the ultraviolet light source and the camera are both arranged on the first mounting part, and the camera is used for recording the positions of the direction indicating piece and the deflection piece and measuring the water flow direction of the underground water to be measured through an included angle between the direction indicating piece and the deflection piece when the deflection piece rotates to be parallel to the flow direction of the underground water to be measured;
groundwater flow performance detection device still includes locating component, locating component includes first gasbag, second gasbag, head rod and second connecting rod, first gasbag with the second gasbag sets up just relatively first installed part set up in first gasbag with between the second gasbag, first gasbag with the second gasbag all is equipped with the portion of running through, the head rod runs through the portion of running through of first gasbag and with the orientation of first installed part one side of first gasbag is connected, the second connecting rod runs through the portion of running through of second gasbag and with the orientation of first installed part one side of second gasbag is connected.
2. The groundwater flow performance detection device according to claim 1, further comprising a vertical rotating shaft connected to the first mounting member, wherein the deflecting member is fixedly connected to the vertical rotating shaft and is configured to rotate the vertical rotating shaft.
3. The groundwater flow performance detection device according to claim 2, wherein the first mounting member is frame-shaped, and both ends of the vertical rotation shaft are connected to a frame of the first mounting member.
4. The groundwater flow performance detection device according to claim 3, wherein the deflector is in the same plane as the vertical rotation shaft.
5. The groundwater flow performance detection device according to claim 4, wherein the deflector is a deflector plate or a deflector plate.
6. The groundwater flow performance detection device of claim 5, wherein the deflector is triangular, rectangular or square.
7. The groundwater flow performance detection device according to claim 4, wherein the number of the deflection member is plural, and the plural deflection members are located on the same side of the vertical rotation shaft and in the same plane.
8. A groundwater flow performance detection device as claimed in any one of claims 2 to 7, wherein the groundwater flow performance detection device further comprises a second mounting member, a transverse rotation shaft, a rotation wheel and a rotation speed measurer;
the second installation part is fixedly connected to the vertical rotating shaft, the transverse rotating shaft is connected to the second installation part, the rotating wheel is connected to the transverse rotating shaft and located on the same plane with the deflection part, and the rotating speed measurer is arranged on the second installation part and used for measuring the rotating speed of the rotating wheel so as to measure the horizontal flow rate of the groundwater to be measured through the rotating speed.
9. The groundwater flow performance detection device according to claim 8, wherein the second mounting part is frame-shaped, and both ends of the transverse rotation shaft are connected to a frame of the second mounting part.
10. The groundwater flow performance detecting device according to claim 9, wherein the rotation speed measuring device is an optoelectronic non-contact rotation speed measuring device having a transmitter and a receiver, the rotating wheel is provided with a plurality of light holes, the plurality of light holes are arranged at equal intervals along a circumferential direction of the rotating wheel, and the receiver is configured to receive light transmission conditions of the light holes under the conditions that the transmitter emits laser light and the rotating wheel rotates, so that a signal processor of the optoelectronic non-contact rotation speed measuring device generates corresponding pulse information, and a horizontal flow velocity of the groundwater to be measured is obtained by a number of pulses generated within a measuring time.
11. The groundwater flow performance detecting device according to claim 10, wherein a rim of the runner is provided with a fin.
12. The groundwater flow performance detecting device according to claim 11, wherein the number of the fins is plural, and the plural fins are provided at intervals in a circumferential direction of the runner.
13. The groundwater flow performance detection device according to claim 11, wherein the fin is spoon-shaped.
14. The groundwater flow performance detection device according to claim 11, wherein the fin is connected with a rim of the rotating wheel through a connecting handle.
15. The groundwater flow performance detection device according to claim 1, further comprising a first inflation line and a second inflation line for inflating the first airbag and the second airbag, respectively.
16. The groundwater flow performance detection device according to claim 15, wherein the first connecting rod is provided with a first passage in an axial direction and a first through hole in a rod wall, the first air bag is provided with a first connection hole, and the first inflation line is connected with the first connection hole through the first through hole in the first passage.
17. The groundwater flow performance detecting device according to claim 16, wherein the second connecting rod is provided with a second passage in an axial direction and a second through hole in a rod wall, the second airbag is provided with a second connecting hole, and the second inflation line passes through the second through hole in the second passage and is connected with the second connecting hole.
18. The groundwater flow performance detection device of claim 17, wherein the positioning assembly further comprises a pulling rope, and one end of the pulling rope passes through the first through hole and is connected with the first mounting member.
19. The groundwater flow performance detection device of claim 18, wherein the positioning assembly further comprises a gravity member and a connection rope, one end of the connection rope passes through the second through hole and is connected with the first mounting member, and the other end of the connection rope is connected with the gravity member.
20. The groundwater flow performance detection device according to claim 19, further comprising a signal transmission line, wherein one end of the signal transmission line is used for connecting with an external signal display device, and the other end of the signal transmission line is used for connecting with a camera through the first channel.
21. The groundwater flow performance detection device according to claim 20, wherein when the groundwater flow performance detection device includes a measurement rotational speed measurer, the signal transmission line is further connected to the measurement rotational speed measurer.
22. A groundwater flow performance detection method, characterized in that the groundwater flow performance detection device according to any one of claims 1 to 21 is used, the deflection member is rotated to be parallel to the direction of groundwater flow under the action of groundwater to be detected, and an included angle between the direction indicator and the deflection member, which is obtained by the image pickup member under the irradiation of an ultraviolet light source, is measured to obtain the direction of groundwater flow.
23. The groundwater flow performance detecting method according to claim 22, wherein when the groundwater flow performance detecting apparatus further comprises a second mounting member, a transverse rotating shaft, a rotating wheel, and a rotation speed measuring device, the rotation speed measuring device measures the rotation speed of the rotating wheel to measure the horizontal flow velocity of the groundwater to be measured.
24. The method as claimed in claim 23, wherein when the rotation speed measuring device is an optoelectronic non-contact rotation speed measuring device having a transmitter and a receiver, and the rotating wheel is provided with a plurality of light holes, the light transmission of the light holes under the conditions that the transmitter emits laser light and the rotating wheel rotates is received by the receiver, so that the signal processor of the optoelectronic non-contact rotation speed measuring device generates corresponding pulse information, and the horizontal flow rate of the groundwater to be measured is obtained by the number of pulses generated within a measuring time.
25. A groundwater flow performance detecting method according to any of claims 23 to 24, wherein when the groundwater flow performance detecting apparatus further comprises a first air cell and a second air cell, after a horizontal flow rate of the groundwater to be detected is measured, the first air cell and the second air cell are deflated, a stable rotation speed of the wheel after deflation is measured, and a vertical flow rate of the groundwater to be detected is measured as an absolute value of a change value between a rotation speed corresponding to the horizontal flow rate and the stable rotation speed of the wheel after deflation.
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| CN114047122A (en) * | 2021-09-30 | 2022-02-15 | 长江地球物理探测（武汉）有限公司 | Pipeline defect detection equipment |
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