CN113624300B - Water level measuring device and measuring method for observation well - Google Patents
Water level measuring device and measuring method for observation well Download PDFInfo
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- CN113624300B CN113624300B CN202110827165.6A CN202110827165A CN113624300B CN 113624300 B CN113624300 B CN 113624300B CN 202110827165 A CN202110827165 A CN 202110827165A CN 113624300 B CN113624300 B CN 113624300B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/40—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements
- G01F23/46—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats using bands or wires as transmission elements using magnetically actuated indicating means
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- Level Indicators Using A Float (AREA)
Abstract
The invention relates to a water level measuring device and a measuring method of an observation well. The measuring assembly comprises a measuring rope and a magnetic induction component, and the magnetic induction component is connected with the measuring rope. The buoy assembly is connected with the measuring rope and is positioned below the magnetic induction component. The buoy assembly floats on the water surface after being lowered to the water surface. After the magnetic induction component descends below the water surface, the magnetic induction component passes through the magnetic field generated by the buoy component and emits a water level signal. The sensing assembly is used for receiving the water level signal and fixing and adjusting the length of the measuring rope. The water level measuring device has the advantages of simple structure, high measuring precision, no influence of bad environmental conditions such as humidity and the like, high construction measuring efficiency, and the problems of inaccurate measurement, great influence of environment and the like of the underground water level measuring method in the prior art are solved. The water level is measured through the magnetic induction characteristics of the magnetic induction component, the testing precision is improved, the operation is simple, and the measured water level data are accurate.
Description
Technical Field
The invention belongs to the technical field of underground water level measurement, and particularly relates to a water level measurement device and a water level measurement method for an observation well.
Background
In the foundation earth excavation and underground space construction stage, the groundwater level is required to be lowered below a construction working surface, so that smooth construction can be ensured. Therefore, in the construction of a building, it is necessary to control and monitor the groundwater level in the precipitation stage of the foundation engineering. The currently commonly used underground water measuring methods comprise a rope measuring method, a clock measuring method, an electrical measuring method, an ultrasonic measuring method and the like. However, the above-mentioned methods for measuring the groundwater level have disadvantages:
although the rope measuring method is simple to operate, the rope measuring method cannot be repeatedly used in a short time, and the obtained result is tedious. In addition, during the construction of the building, the underground water level needs to be measured and recorded frequently, and the rope measuring method is difficult to meet the high-frequency underground water level measurement requirement. Zhong Ce method often has the problems of inaccurate information reflection and inaccurate data. The electric measurement method is difficult to clearly distinguish the water level in the medium environments such as humid air, water contained in the hole wall and the like, and finally misjudgment is caused, so that the water level degree deviation is formed. Ultrasonic measurement is cost prohibitive and the erection and installation of equipment is cumbersome.
Therefore, there is a need for a water level measuring device and method that is accurate, reliable, stable, and low in cost.
Disclosure of Invention
First, the technical problem to be solved
The invention provides a water level measuring device and a water level measuring method for an observation well, which aim to solve the problems of inaccurate ground water level measuring equipment, poor reliability, inadaptability to field measurement and high manufacturing cost in the prior art.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
a water level measuring device of an observation well comprises a measuring assembly, a buoy assembly and an induction assembly;
the measuring assembly comprises a measuring rope and a magnetic induction component, wherein the magnetic induction component is connected with the measuring rope and ascends and descends in the observation well along with the measuring rope;
the buoy assembly is connected with the measuring rope and ascends and descends in the observation well along with the measuring rope, and the buoy assembly is positioned below the magnetic induction component; the buoy assembly floats on the water surface after being lowered to the water surface;
the buoy assembly generates a magnetic field, the magnetic induction component descends below the water surface after floating on the water surface, passes through the magnetic field generated by the buoy assembly, and sends out a water level signal under the action of the magnetic field;
the induction component is positioned outside the observation well to receive the water level signal sent by the magnetic induction component and fix and adjust the length of the measuring rope;
the device also comprises a fixed ring and 3-4 groups of adjusting components;
the fixed ring is fixed at a wellhead of the observation well, the adjusting component is movably connected with the fixed ring, and the adjusting component can rotate around the fixed ring in the circumferential direction;
the adjusting component is provided with a rope measuring guide opening, and the rope measuring extends into the wellhead through the rope measuring guide opening; the adjusting component adjusts the position of the rope guide opening relative to the wellhead;
the adjusting assembly comprises a position adjuster, an adjusting pipe and an adjusting rod;
the position regulator comprises a position regulator body, a convex point sliding ball and a rotating shaft, wherein the upper surface and the lower surface of the fixed ring are inwards recessed to form a revolute pair with the convex point sliding ball of the position regulator;
the adjusting pipe comprises an adjusting pipe body and a rotary connecting pipe orifice, the rotary connecting pipe orifice is connected with a rotating shaft of the position regulator, and a first pin hole is formed in the adjusting pipe body;
the diameter of the adjusting rod is smaller than the inner diameter of the adjusting pipe body, 3-4 second pin holes are formed in the adjusting rod, and the first pin holes are connected with the second pin holes through fixing bolts.
In the water level measuring device for an observation well, preferably, the magnetic induction component is a magnetic induction rod, the magnetic induction rod comprises a reed pipe, inert gas is sealed in the reed pipe, and an insulating layer is arranged on the outer wall of the reed pipe.
In the water level measuring device for an observation well, preferably, the measuring rope comprises a first wire and a second wire, one ends of the first wire and the second wire are connected, and the other ends of the first wire and the second wire are respectively connected with a dry reed; the reed of the first wire and the reed of the second wire are sealed in the reed pipe; the reed is provided with a magnetizable reed contact, the surface of the reed contact is provided with a metal rhodium or ruthenium layer, and the reed contact of the first wire and the reed contact of the second wire are adsorbed together to form a passage under the action of a magnetic field generated by the buoy assembly.
The water level measuring device of an observation well as described above, preferably, the buoy assembly comprises a foam outer layer and a magnet;
the foam outer layer is positioned at the outer side of the magnet and fixedly connected with the magnet;
the magnet is provided with a channel, the magnetic induction rod passes through the channel, and a magnetic induction line of the magnet is cut; the reed contacts on the first lead and the second lead are magnetized under the action of the magnetic field generated by the magnet, and are attracted and contacted with each other to form a passage.
In the water level measuring device for an observation well as described above, preferably, the foam outer layer is connected with the measuring rope by a soft rope;
the connection point of the soft rope and the measuring rope is higher than the magnetic induction rod.
The water level measuring device of the observation well as described above, preferably, the sensing assembly includes a base, an indicator light, a buzzer, a switch, and an adjusting shaft;
the base is fixed on the ground outside the observation well; the buzzer and the signal lamp are electrically connected with the 2 wires, and when reed contacts of the 2 wires are closed, the signal lamp is turned on and/or the buzzer alarms;
the switch controls the switching of the wires and has a triple button to cause the individual signal lights to light up or the individual buzzer to sound an alarm, or to cause the signal lights and the buzzer to react simultaneously.
In the water level measuring device for an observation well, preferably, the measuring rope is wound on the sensing assembly, the adjusting shaft adjusts the length of the measuring rope, and when the adjusting shaft is pressed down, the length of the measuring rope is fixed; when the adjusting shaft is pulled out, the measuring rope is contracted or released.
The invention also provides a method for measuring the water level of the observation well by using the water level measuring device, which comprises the following steps:
s1: installing the fixed ring and the adjusting component into a whole, and then installing the fixed ring at a wellhead of the observation well;
s2: placing a measuring rope connecting the magnetic induction component and the buoy assembly into the fixed ring, then adjusting the adjusting assembly to enable the measuring rope to be positioned in the measuring rope guide opening, and then adjusting the measuring rope guide opening to a proper position;
s3: the measuring rope drives the magnetic induction component and the buoy component to descend until the buoy component floats on the water surface;
s4: the lowering speed of the measuring rope is reduced, the magnetic induction component penetrates through the magnetic field of the buoy component and sends out a water level signal, and the induction component receives the water level signal and sends out a prompt;
s5: the sensing assembly is adjusted, the height of the measuring rope is fixed, the measuring rope is read, and the initial water level is recorded;
s6: and repeatedly measuring and recording the water level height in the observation well according to the steps S1-S5 in a fixed time interval until the water pumping test or the water level measuring activity is finished.
(III) beneficial effects
The beneficial effects of the invention are as follows:
the water level measuring device of the invention connects the magnetic induction component and the buoy component capable of generating a magnetic field with the measuring rope, and the buoy component is arranged below the magnetic induction component. Along with the descent of the measuring rope, the buoy assembly firstly arrives at and floats on the water surface, and in the process of continuing to descend the measuring rope, the magnetic induction component penetrates through the magnetic field generated by the buoy assembly, and the water level signal is fed back to the sensing assembly under the action of the magnetic field.
The water level measuring device has the advantages of simple structure, high measuring accuracy, no influence of bad environmental conditions such as humidity and the like, high construction measuring efficiency, capability of overcoming the problems of inaccurate measuring, large influence of environment, high cost and the like of the underground water level measuring method in the prior art, capability of measuring through the magnetic induction characteristics of the magnetic induction component, capability of improving the measuring accuracy, simplicity in operation and more accurate measured water level data.
In addition, the water level measuring device can monitor the water level, provide necessary calculation parameters for the calculation of the permeability coefficient, and has more comprehensive functions and high construction efficiency.
Drawings
FIG. 1 is a schematic diagram of a water level measuring device according to the present invention;
FIG. 2 is a cross-sectional view of a magnetic induction component of the present invention;
FIG. 3 is a schematic view of the position regulator and the regulator tube of the present invention;
fig. 4 is a schematic structural diagram of an induction component in the present invention.
[ reference numerals description ]
1: a fixing ring; 2: a position adjuster; 3: a fixing bolt; 4: a rope guiding port; 5: an adjusting rod; 6: an adjusting tube; 7: rope measurement; 8: a magnetic induction rod; 9: a soft rope; 10: a magnet; 11: the foam is outside; a layer; 12: a guide rod; 13: a switch; 14: a signal lamp; 15: a buzzer; 16: an adjusting shaft; 17: a base;
21: a position adjuster body; 22: a convex point sliding ball; 23: a rotating shaft;
51: a second pin hole;
61: rotating the connecting pipe orifice; 62: a first pin hole;
71: a first wire; 72: a second wire;
81: plastic packaging glue; 82: a dry reed; 83: reed contacts; 84: a reed pipe; 85: an insulating layer.
Detailed Description
The invention will be better explained by the following detailed description of the embodiments with reference to the drawings.
Example 1
As shown in fig. 1-4, the present embodiment provides a water level measuring device for an observation well, which includes a fixing ring 1, an adjusting component, a measuring component, a buoy component and a sensing component.
The fixed ring 1 is fixed at the wellhead of the observation well, the adjusting component is movably connected with the fixed ring 1, and the adjusting component can rotate around the fixed ring 1 in the circumferential direction. The regulating component is provided with a rope guiding opening 4, and the rope 7 extends into the wellhead through the rope guiding opening 4. The adjusting component can change the position of the rope guide opening 4 relative to the wellhead so as to adjust the relative positions of the rope 7, the measuring component and the floating component in the well, and avoid collision with obstacles to influence the measuring result.
The wellhead is generally circular and the retaining ring 1 can be fully or partially in contact with the wellhead for securing the adjustment assembly and providing support for the measurement assembly as well as the buoy assembly. Common wellhead diameters include 400mm, 600mm, 800mm, etc., and the retaining ring 1 also includes different dimensions for different wellhead diameters.
The measuring assembly comprises a measuring rope 7 and a magnetic induction component, wherein the magnetic induction component is connected with the measuring rope 7 and ascends and descends in the observation well along with the measuring rope 7. The buoy assembly is connected with the measuring rope 7, and the buoy assembly is arranged below the magnetic induction component along with the lifting of the measuring rope 7 in the observation well so that the buoy assembly reaches the water surface first. The buoy assembly can generate a magnetic field, and the buoy assembly floats on the water surface after being lowered to the water surface. After the buoy assembly floats on the water surface, the magnetic induction component continuously descends below the water surface along with the measuring rope 7, and the magnetic induction component passes through the magnetic field generated by the buoy assembly when descends below the water surface, and sends out a water level signal under the action of the magnetic field generated by the buoy assembly.
The sensing assembly is located outside the observation well, and one end of the measuring rope 7 is wound on the sensing assembly. The sensing assembly can adjust and fix the depth length of the measuring rope 7, can also receive the water level signal sent by the magnetic induction component and send a prompt to an operator.
The water level measuring device of this embodiment connects the magnetic induction component and the buoy assembly capable of generating a magnetic field with the measuring rope 7, and the buoy assembly is disposed below the magnetic induction component. Along with the descent of the measuring rope 7, the buoy assembly firstly reaches and floats on the water surface, and in the process of continuing to descend the measuring rope 7, the magnetic induction component penetrates through the magnetic field generated by the buoy assembly and feeds back a water level signal to the sensing assembly under the action of the magnetic field.
The water level measuring device of the embodiment has the advantages of simple structure, high measuring accuracy, no influence of bad environmental conditions such as humidity and the like, high construction measuring efficiency, and the problems of inaccurate measuring, large influence by environment, high cost and the like of the underground water level measuring method in the prior art are overcome. The magnetic induction characteristics of the magnetic induction components are used for measuring, the testing precision is improved, the operation is simple, and the measured water level data are accurate.
Preferably, the magnetic induction component is a magnetic induction rod 8, as shown in fig. 2, the magnetic induction rod 8 is a reed pipe 84, two ends of the reed pipe 84 are sealed by plastic sealing glue 81, and an insulating layer 85 is arranged on the outer wall of the reed pipe 84 to improve the service life of the reed pipe 84.
Further, the inside of the measuring rope 7 comprises a first wire 71 and a second wire 72, and the outside is an insulating outer layer on which the length of the measuring rope 7 is marked. One ends of the first and second wires 71 and 72 are connected, and the other ends are connected to the dry reed 82, respectively. The reed 82 of the first lead 71 and the reed 82 of the second lead 72 are sealed in the reed pipe 84, and inert gas is sealed in the reed pipe 84 to prevent the reed 82 from being oxidized and damaged and prolong the service life of the reed. The reed 82 is provided with a magnetizable reed contact 83, and the reed contact 83 of the first wire 71 and the reed contact 83 of the second wire 72 are attracted together to form a passage under the action of a magnetic field generated by the buoy assembly.
The dry reed 82 corresponds to a magnetic flux conductor and can be magnetized by an externally applied magnetic field. The dry reeds 82 of the first and second wires 71, 72 are not in contact until the magnetic induction rod 8 does not reach the water surface. When the magnetic induction rod 8 passes through the magnetic field generated by the float assembly, the two dry reed 82 have different polarities near the end positions. When the attractive force between the reed contacts 83 exceeds the spring force of the reed itself, the two reeds will be attracted together, connecting the circuit where the wire is located. When the magnetic field is weakened or vanished, the two dry reeds 82 will separate automatically under the elasticity of the two dry reeds, so that the circuit is opened.
Preferably, the surface layer of the reed contact 83 is plated with hard rhodium or ruthenium, which can greatly improve the switching times and service life of the reed contact 83.
Preferably, the float assembly includes a foam outer layer 11 and a magnet 10. The foam outer layer 11 is positioned outside the magnet 10 and fixedly connected with the magnet 10. The foam outer layer 11 is positioned on the outer side of the magnet 10, has larger area and lighter weight, and is beneficial to realizing the floatation of the magnet 10. The magnet 10 is provided with a passage through which the magnetic induction rod 8 can pass in the process of descending, and the magnetic induction line of the magnet 10 is cut. The dry reed 82/reed contact 83 on the first wire 71 and the second wire 72 are magnetized by the magnetic field generated by the magnet 10, and attract each other to contact each other, thereby forming a passage.
In this embodiment, the foam outer layer 11 and the magnet 10 are preferably annular, the annular magnet is convenient for the magnetic induction rod 8 to pass through, and the mass distribution is even, and the inclination is not easy to occur in the lowering process so as to influence the water level measurement. Of course, the magnet 10 in this embodiment is not limited to the ring shape, and a U-shaped magnet, a bar-shaped magnet or an electromagnet may be used, and the effect of magnetizing the reed contact 83 can be achieved only by satisfying the function of providing a magnetic field by the magnetic induction rod 8, thereby adsorbing and forming a loop. Preferably, if a U-shaped magnet 10 or a bar-shaped magnet 10 is used, it is preferable to ensure uniformity of mass distribution of the foam outer ring and the magnet 10 as a whole, so as to avoid the magnet 10 from being turned over with the outer layer foam.
Preferably, the foam outer layer 11 is connected to the measuring rope 7 by means of a flexible rope 9. As shown in fig. 1, the flexible rope 9 comprises 3-4 pieces, one end of the flexible rope 9 is uniformly connected with the foam outer layer 11, and the other end is connected with the measuring rope 7 at the same height, so that the foam outer layer 11 and the magnet 10 can reach the water surface in the well smoothly. The connection point of the soft rope 9 and the measuring rope 7 is higher than the magnetic induction rod 8 so as to ensure that the magnet 10 and the foam outer layer 11 are contacted with the water surface firstly in the process of lowering the measuring rope 7. After the magnet 10 and the foam outer layer 11 reach the water surface, the tension on the flexible rope 9 disappears, however, the flexible rope 9 has a certain length, so that the measuring rope 7 can be further lowered, and the positions of the outer ring foam and the ring magnet are not changed any more relative to the water surface.
Preferably, the measuring assembly further comprises a guide rod 12, wherein the guide rod 12 is connected with the lower end of the reed pipe 84, and the diameter of the guide rod 12 is far smaller than the inner diameter of the ring magnet. The guide roller 12 in this embodiment has a certain weight, and can ensure that the magnetic induction rod 8 accurately penetrates the ring magnet, so as to achieve the effect of accurately monitoring the water level. Further, the guide rod 12 is made of a material with a high density, such as aluminum or copper, which is not attracted by the magnet 10, so as to ensure that when the length of the soft rope 9 is long, the guide rod 12 can still guide the magnetic induction rod 8 to smoothly pass through the channel of the magnet 10, and cut the magnetic induction line.
Preferably, 3-4 sets of adjustment assemblies are co-located in this embodiment. Each set of adjustment assemblies comprises a position adjuster 2, an adjustment tube 6 and an adjustment rod 5. As shown in fig. 3, the position regulator 2 includes a position regulator body 21, a bump ball 22, and a rotation shaft 23. The upper and lower surfaces of the fixed ring 1 are recessed inward to perfectly fit with the protruding point sliding balls 22 of the position regulator 2, so as to form a revolute pair, and the position regulator 2 can axially move around the fixed ring 1 without falling off.
The adjusting tube 6 comprises an adjusting tube 6 body and a rotary connecting tube orifice 61, wherein the rotary connecting tube orifice 61 is connected with the rotating shaft 23 of the position adjuster 2, and the diameter of the rotary connecting tube orifice 61 is slightly larger than that of the rotating shaft 23 so as to ensure that the rotary connecting tube orifice 61 can rotate around the rotating shaft 23 and further realize the adjustment of the lowering position of the measuring rope 7. The body of the adjusting tube 6 is provided with a first pin hole 62.
The diameter of the adjusting rod 5 is smaller than the inner diameter of the body of the adjusting pipe 6, 3-4 second pin holes 51 are arranged on the adjusting rod 5, and the first pin holes 62 are connected with the second pin holes 51 through the fixing bolts 3. In this embodiment, in order to save devices, 3-4 second pin holes 51 are provided on the adjusting rod 5, when the diameters of the wellheads are different, the fixing rings 1 with different diameters and the adjusting rod 5 with different lengths are needed, at this time, only the different second pin holes 51 of the adjusting rod 5 and the first pin holes 62 of the adjusting tube 6 are needed to be fixed by the fixing bolts 3 according to the different diameters of the wellheads, so that one tube can be multipurpose, and the number of equipment components can be reduced.
One end of the adjusting rod 5, which is far away from the adjusting pipe 6, is provided with a rope guide opening 4, the rope guide opening 4 determines the lowering position of the rope 7, and the lowering position cannot be too close to the well wall, so that the measuring accuracy is prevented from being influenced by collision between the measuring equipment and the well wall. The ideal lowering position of the measuring rope 7 is the center of a well mouth, however, in the water level measurement process of an actual observation well, equipment such as a water pump, a water pipe and the like is usually arranged in the well, and the center of the well is blocked, if the measuring rope 7 is continuously lowered at the center of the well mouth, inaccurate measurement can be caused. Therefore, in order to avoid the barriers in the well, the water pipe, the water pump and the like are used for preventing the measuring rope from being lowered, so that the water level measurement is disturbed, the angle of the adjusting pipe 6 relative to the position regulator 2 can be adjusted, or the length of the adjusting rod 5 is changed, the position change of the measuring rope guide opening 4 in the adjusting assembly is realized, and the position of the measuring rope guide opening deviates from the center of the well mouth, so that the barriers in the well are avoided, and the water level is smoothly and accurately measured.
The adjusting component in the embodiment can adjust the levelness of the measuring rope 7 at the wellhead besides adjusting the lowering position of the measuring rope 7 and avoiding touching obstacles. Specifically, in the actual measurement process, equipment such as a water pump, a water pipe and the like is usually arranged in a well, and the water pipe usually needs to pass through a wellhead, so that a certain angle exists between the plane where the wellhead is located and the horizontal plane. In addition, in the natural state, the plane of the wellhead is not completely parallel to the horizontal plane.
In this embodiment, the bump slide ball 22 slides radially relative to the fixed ring 1 by rotating the position adjuster 2, so that the plane in which the adjusting assembly is located is adjusted to be parallel to the horizontal plane, the measuring rope 7 is lowered into the well through the measuring rope guide 4 parallel to the horizontal plane, and the measuring rope 7 at the wellhead is also kept in a horizontal state.
Preferably, as shown in fig. 4, the sensing assembly includes a base 17, a signal light 14, a buzzer 15, a switch 13, and an adjustment shaft 16. The base 17 is fixed on the ground outside the observation well, and the signal lamp 14 and the buzzer 15 are electrically connected with 2 wires. The switch 13 can control the switch 13 of the line and has a triple button which allows the individual signal lights 14 to illuminate or the individual buzzer 15 to sound an alarm or allows the signal lights 14 and the buzzer 15 to react simultaneously. The measuring rope 7 is wound on the sensing assembly, the adjusting shaft 16 is used for adjusting the length of the measuring rope 7, when the adjusting shaft 16 is pressed down, the length of the measuring rope 7 is fixed, and when the adjusting shaft 16 is pulled out, the measuring rope 7 can be contracted or released.
The water level measuring device of the embodiment has the advantages of simple structure, high measuring accuracy, no influence of bad environmental conditions such as humidity and the like, high construction measuring efficiency, and the problems of inaccurate measuring, large influence by environment, high cost and the like of the underground water level measuring method in the prior art are overcome. The method improves the precision of the test, is simple to operate, ensures that the measured water level data is accurate, reduces the manual investment and workload, and reduces the error of manual operation in the measuring process.
Example 2
The present embodiment provides a water level measurement method for an observation well based on the measurement apparatus of embodiment 1, including the steps of:
s1: the fixed ring 1 is installed as one body with the adjusting assembly, and then the fixed ring 1 is installed at the wellhead of the observation well.
S2: the measuring rope 7 connecting the magnetic induction component and the buoy assembly is placed in the fixed ring 1, then the angle of the adjusting pipe 6 relative to the position regulator 2 is adjusted, or the length of the adjusting rod 5 is changed, and the position of the measuring rope guide 4 is moved to a required position.
S3: the measuring rope 7 drives the magnetic induction component and the buoy assembly to descend until the buoy assembly floats on the water surface.
S4: the lowering speed of the measuring rope 7 is reduced, the magnetic induction component penetrates through the magnetic field of the magnet 10, the dry reeds 82 on the first lead 71 and the second lead 72 are magnetized under the action of the magnetic field generated by the magnet 10, the reed contacts 83 attract and contact each other to form a passage, a water level signal is sent, and the induction component receives the water level signal and gives a prompt.
S5: the length of the rope 7 is fixed by pressing the adjusting shaft 16, and then reading is performed, and the initial water level is recorded.
S6: and repeatedly measuring and recording the water level height in the observation well according to the steps S1-S5 in a fixed time interval until the water pumping test or the water level measuring activity is finished.
The water level measuring method of the present embodiment can also measure the time required for the restoration of the fixed water level height or the time required for the descent of the fixed water level, providing necessary parameters for the calculation of the osmotic coefficient. During the recovery of the water level in the well, when the height of the water level is measured, the magnetic induction rod 8 can be lifted to a certain height, after the buzzer 15 and the signal lamp 14 respond, the time required by the recovery of the water level is obtained, and then the osmotic coefficient calculation is performed.
Similarly, after the primary water level measurement is completed during the descent of the water level in the well, the measuring rope 7, that is, the magnetic induction rod 8, is lowered to a certain height, and finally, when the water level descends to the height of the magnetic induction rod 8, the buoy assembly also descends to the height of the magnetic induction rod 8 along with the water level, and a strong enough magnetic field is generated to enable the magnetic induction rod 8 to react. Recording the time when the reed contact in the magnetic induction rod is touched again after the measuring rope is lowered, and the buzzer or the signal lamp sends out signals, so that the time required by the height corresponding to the water level lowering can be obtained, and further, the osmotic coefficient is calculated.
The above embodiments are only for explaining the present invention and do not limit the scope of protection of the present invention, and those skilled in the art make various variations or modifications within the scope of the claims, which fall within the essential content of the present invention.
Claims (8)
1. The water level measuring device of the observation well is characterized by comprising a measuring assembly, a buoy assembly and an induction assembly;
the measuring assembly comprises a measuring rope (7) and a magnetic induction component, wherein the magnetic induction component is connected with the measuring rope (7) and ascends and descends in an observation well along with the measuring rope (7);
the buoy assembly is connected with the measuring rope (7) and rises and falls in the observation well along with the measuring rope (7), and is positioned below the magnetic induction component; the buoy assembly floats on the water surface after being lowered to the water surface;
the buoy assembly generates a magnetic field, the magnetic induction component descends below the water surface after floating on the water surface, passes through the magnetic field generated by the buoy assembly, and sends out a water level signal under the action of the magnetic field;
the induction component is positioned outside the observation well to receive the water level signal sent by the magnetic induction component and fix and adjust the length of the measuring rope (7);
the device also comprises a fixed ring (1) and 3-4 groups of adjusting components;
the fixed ring (1) is fixed at a wellhead of the observation well, the adjusting component is movably connected with the fixed ring (1), and the adjusting component can circumferentially rotate around the fixed ring (1);
the regulating component is provided with a rope measuring guide opening (4), and the rope (7) extends into the wellhead through the rope measuring guide opening (4); the adjusting component adjusts the position of the rope guide opening (4) relative to the wellhead;
the adjusting assembly comprises a position adjuster (2), an adjusting pipe (6) and an adjusting rod (5);
the position regulator (2) comprises a position regulator body (21), a convex point sliding ball (22) and a rotating shaft (23), wherein the upper surface and the lower surface of the fixed ring (1) are recessed inwards to form a revolute pair with the convex point sliding ball (22) of the position regulator (2);
the adjusting pipe (6) comprises an adjusting pipe (6) body and a rotary connecting pipe orifice (61), the rotary connecting pipe orifice (61) is connected with a rotating shaft (23) of the position regulator (2), and a first pin hole (62) is formed in the adjusting pipe (6) body;
the diameter of the adjusting rod (5) is smaller than the inner diameter of the adjusting pipe (6) body, 3-4 second pin holes (51) are formed in the adjusting rod (5), and the first pin holes (62) are connected with the second pin holes (51) through fixing bolts (3).
2. The water level measuring device of an observation well according to claim 1, wherein the magnetic induction component is a magnetic induction rod (8), the magnetic induction rod (8) comprises a reed pipe (84), inert gas is sealed in the reed pipe (84), and an insulating layer (85) is arranged on the outer wall of the reed pipe.
3. The water level measuring device of an observation well according to claim 2, wherein the measuring rope (7) comprises a first wire (71) and a second wire (72), one end of the first wire (71) is connected with one end of the second wire (72), and the other end is respectively connected with a dry reed (82); -the dry reed (82) of the first wire (71) and the dry reed (82) of the second wire (72) are sealed inside the reed pipe (84); the reed switch is characterized in that a magnetizable reed contact (83) is arranged on the dry reed (82), a metal rhodium or ruthenium layer is arranged on the surface of the reed contact (83), and the reed contact (83) of the first lead (71) and the reed contact (83) of the second lead (72) are magnetized and then adsorbed together to form a passage under the action of a magnetic field generated by the buoy assembly.
4. A water level measuring device for an observation well according to claim 3, characterized in that the buoy assembly comprises a foam outer layer (11) and a magnet (10);
the foam outer layer (11) is positioned on the outer side of the magnet (10) and is fixedly connected with the magnet (10);
a channel is arranged on the magnet (10), and the magnetic induction rod (8) passes through the channel to cut a magnetic induction line of the magnet (10); the reed contacts (83) on the first wire (71) and the second wire (72) are magnetized under the action of the magnetic field generated by the magnet (10), and attract each other to contact with each other to form a passage.
5. A water level measuring device of an observation well according to claim 4, characterized in that the foam outer layer (11) is connected with the measuring rope (7) by means of a soft rope (9);
the connection point of the soft rope (9) and the measuring rope (7) is higher than the magnetic induction rod (8).
6. A water level measuring device of an observation well according to claim 3, characterized in that the sensing assembly comprises a base (17), a signal lamp (14), a buzzer (15), a switch (13) and an adjusting shaft (16);
the base (17) is fixed on the ground outside the observation well; the buzzer (15) and the signal lamp (14) are electrically connected with the 2 wires, and when reed contacts (83) of the 2 wires are closed, the signal lamp (14) is turned on and/or the buzzer (15) alarms;
the switch (13) controls the switching of the wires and has a triple button, so that a separate signal lamp (14) is lighted or a separate buzzer (15) is alerted, or the signal lamp (14) and the buzzer (15) are made to react simultaneously.
7. The water level measuring device of an observation well according to claim 6, wherein the measuring rope (7) is wound on the sensing assembly, the adjusting shaft (16) adjusts the length of the measuring rope (7), and when the adjusting shaft (16) is pressed down, the length of the measuring rope (7) is fixed; when the adjusting shaft (16) is pulled out, the measuring rope (7) is contracted or released.
8. A method of water level measurement of an observation well using the water level measurement apparatus as claimed in any one of claims 1 to 7, comprising the steps of:
s1: the fixed ring (1) and the adjusting component are installed into a whole, and then the fixed ring (1) is installed at the wellhead of the observation well;
s2: placing a measuring rope (7) for connecting the magnetic induction component and the buoy assembly into the fixed ring (1), then adjusting the adjusting assembly to enable the measuring rope (7) to be positioned in the measuring rope guide opening (4), and then adjusting the measuring rope guide opening (4) to a proper position;
s3: the measuring rope (7) drives the magnetic induction component and the buoy component to descend until the buoy component floats on the water surface;
s4: the lowering speed of the measuring rope (7) is reduced, the magnetic induction component penetrates through the magnetic field of the buoy component and sends out a water level signal, and the induction component receives the water level signal and sends out a prompt;
s5: the sensing assembly is adjusted, the height of the measuring rope (7) is fixed, the measuring rope (7) is read, and the initial water level is recorded;
s6: and repeatedly measuring and recording the water level height in the observation well according to the steps S1-S5 in a fixed time interval until the water pumping test or the water level measuring activity is finished.
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Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3143919A1 (en) * | 1981-11-05 | 1983-05-11 | Pfister Gmbh, 8900 Augsburg | Method and device for measuring a pressure, particularly of a fluid |
| CN1355383A (en) * | 2000-11-29 | 2002-06-26 | 卢旭 | Pumping unit with regulatable horizontal or vertical position of sucker rod relative to well |
| JP2005254413A (en) * | 2004-03-15 | 2005-09-22 | Kuroda Precision Ind Ltd | Tool ejecting length setting device for tool holder |
| CA2463077A1 (en) * | 2004-04-07 | 2005-10-07 | J. Kelly Doary | Method and apparatus for determining water level in a drilled or dug well for monitoring and water flow control purposes |
| CN2886516Y (en) * | 2006-04-13 | 2007-04-04 | 包头稀土研究院 | Fe-base bulk amorphous high precision liquid level gauge |
| CN101694397A (en) * | 2009-10-23 | 2010-04-14 | 中国科学院遗传与发育生物学研究所 | Method and device for automatically measuring ascending/descending one-way movement of water level |
| CN104236677A (en) * | 2014-08-25 | 2014-12-24 | 国网电力科学研究院 | Ultralow power consumption magnetic induction type floater water level sensor and signal processing method |
| CN107436171A (en) * | 2016-05-26 | 2017-12-05 | 中交第航务工程局有限公司 | A kind of ball float -- the closed water-level measuring post of tongue tube and its application method |
| CN107476798A (en) * | 2016-06-07 | 2017-12-15 | 中国石油化工股份有限公司 | One kind is suitable to deep water injection downcomer overall process well head attitude monitoring system and method |
| CN110130849A (en) * | 2019-05-08 | 2019-08-16 | 任丘市高登石油机械有限公司 | A kind of control system of preventer based on Internet of Things |
| CN209623812U (en) * | 2019-05-21 | 2019-11-12 | 孙雪峰 | It is a kind of for measuring the device of water surface elevation in the well with barrier |
| CN210266580U (en) * | 2019-03-18 | 2020-04-07 | 刘凯 | Bracket rod for mine survey |
| CN111307251A (en) * | 2019-11-29 | 2020-06-19 | 河北工程大学 | Deep well water level detector |
| CN112013753A (en) * | 2020-08-04 | 2020-12-01 | 南京信息职业技术学院 | Tool for measuring planeness of small circular boss on end surface of large pipe |
| CN112325987A (en) * | 2020-11-20 | 2021-02-05 | 贵阳红鸟智能技术服务有限公司 | Urban sewer well liquid level mixing detection device |
| CN112340627A (en) * | 2020-10-31 | 2021-02-09 | 湖南达道新能源开发有限公司 | Well drilling is equipment of taking off and land for well digging |
| CN212644118U (en) * | 2020-07-07 | 2021-03-02 | 童亚联 | Special measuring device of building engineering cost |
| CN212779489U (en) * | 2020-08-28 | 2021-03-23 | 中国水利水电第八工程局有限公司 | Quick measuring device for water level of vertical shaft |
| CN112587826A (en) * | 2020-12-16 | 2021-04-02 | 范林玲 | Portable tripod suitable for well head fire rescue |
| CN213455752U (en) * | 2020-11-11 | 2021-06-15 | 河南豫美建设工程检测有限公司 | Foundation ditch engineering ground water level monitoring devices |
-
2021
- 2021-07-21 CN CN202110827165.6A patent/CN113624300B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3143919A1 (en) * | 1981-11-05 | 1983-05-11 | Pfister Gmbh, 8900 Augsburg | Method and device for measuring a pressure, particularly of a fluid |
| CN1355383A (en) * | 2000-11-29 | 2002-06-26 | 卢旭 | Pumping unit with regulatable horizontal or vertical position of sucker rod relative to well |
| JP2005254413A (en) * | 2004-03-15 | 2005-09-22 | Kuroda Precision Ind Ltd | Tool ejecting length setting device for tool holder |
| CA2463077A1 (en) * | 2004-04-07 | 2005-10-07 | J. Kelly Doary | Method and apparatus for determining water level in a drilled or dug well for monitoring and water flow control purposes |
| CN2886516Y (en) * | 2006-04-13 | 2007-04-04 | 包头稀土研究院 | Fe-base bulk amorphous high precision liquid level gauge |
| CN101694397A (en) * | 2009-10-23 | 2010-04-14 | 中国科学院遗传与发育生物学研究所 | Method and device for automatically measuring ascending/descending one-way movement of water level |
| CN104236677A (en) * | 2014-08-25 | 2014-12-24 | 国网电力科学研究院 | Ultralow power consumption magnetic induction type floater water level sensor and signal processing method |
| CN107436171A (en) * | 2016-05-26 | 2017-12-05 | 中交第航务工程局有限公司 | A kind of ball float -- the closed water-level measuring post of tongue tube and its application method |
| CN107476798A (en) * | 2016-06-07 | 2017-12-15 | 中国石油化工股份有限公司 | One kind is suitable to deep water injection downcomer overall process well head attitude monitoring system and method |
| CN210266580U (en) * | 2019-03-18 | 2020-04-07 | 刘凯 | Bracket rod for mine survey |
| CN110130849A (en) * | 2019-05-08 | 2019-08-16 | 任丘市高登石油机械有限公司 | A kind of control system of preventer based on Internet of Things |
| CN209623812U (en) * | 2019-05-21 | 2019-11-12 | 孙雪峰 | It is a kind of for measuring the device of water surface elevation in the well with barrier |
| CN111307251A (en) * | 2019-11-29 | 2020-06-19 | 河北工程大学 | Deep well water level detector |
| CN212644118U (en) * | 2020-07-07 | 2021-03-02 | 童亚联 | Special measuring device of building engineering cost |
| CN112013753A (en) * | 2020-08-04 | 2020-12-01 | 南京信息职业技术学院 | Tool for measuring planeness of small circular boss on end surface of large pipe |
| CN212779489U (en) * | 2020-08-28 | 2021-03-23 | 中国水利水电第八工程局有限公司 | Quick measuring device for water level of vertical shaft |
| CN112340627A (en) * | 2020-10-31 | 2021-02-09 | 湖南达道新能源开发有限公司 | Well drilling is equipment of taking off and land for well digging |
| CN213455752U (en) * | 2020-11-11 | 2021-06-15 | 河南豫美建设工程检测有限公司 | Foundation ditch engineering ground water level monitoring devices |
| CN112325987A (en) * | 2020-11-20 | 2021-02-05 | 贵阳红鸟智能技术服务有限公司 | Urban sewer well liquid level mixing detection device |
| CN112587826A (en) * | 2020-12-16 | 2021-04-02 | 范林玲 | Portable tripod suitable for well head fire rescue |
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|---|---|
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