CN113175319A - Automatic monitoring system and method for middle-deep geothermal well - Google Patents
Automatic monitoring system and method for middle-deep geothermal well Download PDFInfo
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- 235000020681 well water Nutrition 0.000 claims abstract description 47
- 239000002349 well water Substances 0.000 claims abstract description 47
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 238000005086 pumping Methods 0.000 claims description 53
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- 238000005485 electric heating Methods 0.000 claims description 13
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- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
- E21B49/081—Obtaining fluid samples or testing fluids, in boreholes or wells with down-hole means for trapping a fluid sample
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Abstract
The application relates to an automatic monitoring system and method for a middle-deep geothermal well, which relate to the field of geothermal well monitoring equipment and comprise a fixed seat fixed with a well head and a display positioned on the fixed seat, wherein a measuring box is arranged in the fixed seat in a lifting way, and a measuring device for measuring water level is arranged on the measuring box; the measuring box is provided with a temperature sensor for measuring temperature, and the temperature sensor is electrically connected with the display; the measuring box is internally provided with a detection piece for detecting water quality, and the detection piece is electrically connected with the display. This application collects detection device in an organic whole of water level, temperature and quality of water, the simple operation can realize the synchronous detection to water level, temperature and quality of water of well water in the geothermol power well.
Description
Technical Field
The application relates to the field of geothermal well monitoring equipment, in particular to an automatic monitoring system and method for a middle-deep geothermal well.
Background
Terrestrial heat is an important renewable energy resource, can play an important role in aspects of hot spring travel development, building central heating, ecological construction and the like, has rich heat storage and great development potential of middle-deep layer geothermal rocks, is one of important contents for promoting high-quality development of cities by developing and utilizing terrestrial heat resources, is also one of the pursuits of people for good life and the needs of local construction development, and can provide resource support for city development, ecological improvement, leisure recuperation and the like.
The geothermal well is a main mode for artificially exploiting geothermal resources, geothermal energy is a good new energy, can be widely applied to the fields of bath, medical care, heating, power generation, planting and breeding, mineral water drinking and the like, and has good social benefit, economic benefit and environmental benefit; however, it is very necessary to know the change and distribution rule of underground temperature to stably develop and utilize geothermal energy in winter heating for a long time; therefore, the dynamic changes of the water level, the water temperature and the water quality in the geothermal well can be mastered in time by arranging the automatic monitoring system of the middle-deep geothermal well.
For the related technologies, the inventor considers that the monitoring of the water level and the water temperature in the geothermal well and the monitoring of the water quality in the geothermal well in the existing automatic monitoring system for the geothermal well are separated measurement, and the synchronous monitoring of the water level, the water temperature and the water quality in the geothermal well cannot be realized.
Disclosure of Invention
In order to improve the problem of synchronous monitoring of water level, water temperature and water quality in a geothermal well, the application provides an automatic monitoring system and method for a middle-deep geothermal well.
In a first aspect, the application provides an automatic monitoring system for a middle-deep geothermal well, which adopts the following technical scheme:
an automatic monitoring system for a middle-deep geothermal well comprises a fixed seat fixed with a well head and a display positioned on the fixed seat, wherein a measuring box is arranged in the fixed seat in a lifting manner, and a measuring device for measuring the water level is arranged on the measuring box; the measuring box is provided with a temperature sensor for measuring temperature, and the temperature sensor is electrically connected with the display; the measuring box is internally provided with a detection piece for detecting water quality, and the detection piece is electrically connected with the display.
Through adopting above-mentioned technical scheme, the measuring box is used for bearing temperature sensor and detection piece, temperature sensor is used for detecting the temperature, it is used for detecting quality of water to detect the piece, measuring device is used for detecting the water level, the measuring box hangs through measuring device and establishes on the fixing base, the fixing base is hung the measuring box and is established in wellhead department, the display is used for providing the power and also is used for showing the water level simultaneously, temperature and quality of water condition, above-mentioned structural design's well deep geothermal well automatic monitoring system collects the water level, the detection device in an organic whole of temperature and quality of water, the simple operation, can realize the water level to the well water in the geothermal well, the synchronous detection of temperature and.
Optionally, the measuring device includes a measuring rope, a distance sensor, a tension sensor, a winding mechanism, and a digital display mechanism for monitoring the lifting distance of the measuring rope, the winding mechanism and the digital display mechanism are all disposed in the fixing seat, the digital display mechanism is disposed below the winding mechanism, one end of the measuring rope is threaded through the winding of the digital display mechanism on the winding mechanism, the other end of the measuring rope is fixedly connected with the tension sensor, the tension sensor is far away from one end of the measuring rope and fixedly connected with the measuring box, the distance sensor is disposed on the end face of one side of the measuring box, and the distance sensor and the tension sensor are all electrically connected with the winding mechanism.
By adopting the technical scheme, when the water level of well water in a geothermal well is detected, the winding mechanism is started, the measuring box slowly descends towards the direction close to the well water under the hanging of the measuring rope, the digital display mechanism can display the lifting height of the measuring rope, when the distance sensor detects that the lower end face of the measuring box is in contact with the water surface, a signal is electrically transmitted to the winding mechanism, the winding mechanism stops working, when the tension sensor detects that the applied tension is smaller than the integral weight of the measuring box, the tension sensor transmits the signal to the winding mechanism, the winding mechanism reversely starts the winding measuring rope, the height of the measuring box is adjusted, the lower end face of the measuring box is only in contact with the water surface and is not influenced by the buoyancy of the water, and at the moment, the height of the lower end face of the measuring box is the water level of the geothermal well water; the winding mechanism is driven to adjust the height of the measuring box in the geothermal well under the interaction of the distance sensor and the tension sensor, so that the measuring precision of the water level of well water in the geothermal well is improved.
Optionally, digital display mechanism includes frame, meter rice wheel, pinch roller and rotary encoder, the frame rigid coupling is in the fixing base, meter rice wheel with the pinch roller all rotates to be connected in the frame, the survey line butt sets up meter rice wheel with between the pinch roller, rotary encoder with the coaxial rigid coupling of meter rice wheel, rotary encoder is located in the frame, just rotary encoder with display electric connection.
Through adopting above-mentioned technical scheme, the frame is used for meter rice wheel, pinch roller and rotary encoder fix in the fixing base, the tight butt of survey rope is on meter rice wheel under the effect of pinch roller, the survey rope is in the tensioning state under the traction of measuring box, winding mechanism when receiving and releasing the survey rope, the survey rope drives meter rice wheel through the friction and rotates, rotary encoder takes notes meter rice wheel's the rotation condition, and the lift distance electrical property transmission to the display of measuring box is converted, the water level condition of current geothermol power well water can be shown to the display.
Optionally, the bottom wall of the measuring box is provided with a water inlet hole in a penetrating manner, the measuring box is positioned above the water inlet hole, the measuring box is internally provided with a water pumping plate which can slide up and down, the detection piece is embedded in the end face of the water pumping plate close to the water inlet hole, the circumferential wall of the water pumping plate is tightly abutted to the inner wall of the measuring box, the detection piece is positioned on one side of the water pumping plate away from the water inlet hole, the inner wall of the measuring box is provided with a driving piece which is used for driving the water pumping plate to slide up and down, the driving piece is electrically connected with the display, the water pumping plate is provided with a sealing piece which is used for plugging the circumferential wall of the water pumping plate and a gap between the inner walls of the measuring box, and the measuring box is internally provided with an adjusting piece which is convenient for adjusting and controlling the temperature in the measuring box.
Through adopting above-mentioned technical scheme, when temperature and quality of water to the well water in the geothermal well examine time measuring, start the driving piece, the driving piece drive is drawn water the board and is moved towards keeping away from the inlet opening direction and slide, well water enters into the measuring box from the inlet opening in, the detection piece can carry out water quality testing to the well water of measuring box, the whole weight increase of measuring box this moment, the synchronous start winding mechanism, the measuring rope is in lax state this moment, the measuring box sinks, driving piece and winding mechanism are discontinuously started, make the measuring box can subside to the different degree of depth, the realization detects the temperature and the quality of water of the different degree of depth department, the improvement is to the measurement accuracy of well water temperature and quality of water in the geothermal well.
Optionally, the adjusting part is an electric heating sheet, the electric heating sheet is located on the inner wall of the measuring box, on one side of the water inlet hole, away from the water pumping plate, the inner wall of the measuring box is provided with a switch electrically connected with the electric heating sheet, one end of the switch, away from the electric heating sheet, is electrically connected with the display, and a control part for controlling the on and off of the switch is arranged in the measuring box.
Through adopting above-mentioned technical scheme, because the driving piece drive draws water when the board orientation is kept away from the direction of inlet opening and is slided, the air that the inlet opening one side was kept away from to the board that draws water is compressed, lead to the board of drawing water and the measuring box to keep away from the atmospheric pressure grow between the inner wall of inlet opening one end, make the driving piece be difficult to the drive board that draws water and keep away from the inlet opening orientation and slide, it is closed through control switch, the electric heat piece is got electric and is produced the heat this moment, the air that the board of drawing water and measuring box kept away from between the inner wall of inlet opening one end is heated, make the atmospheric pressure that the board of drawing water kept away from inlet opening one side diminish, the driving piece can continue to drive the board that draws water and keep away from the inlet opening orientation and slide this moment, realize the whole weight of increase measuring box steadily.
Optionally, the control element is a pressure gauge, the pressure gauge is located on the inner wall of the measuring box, on one side of the water inlet hole, away from the water pumping plate, and the pressure gauge is electrically connected with the switch.
Through adopting above-mentioned technical scheme, the manometer can keep away from the atmospheric pressure size between the inlet opening one end inner wall through monitoring pumping plate and measuring box, realizes opening and close of control switch, and then the break-make of electric current in the control electric heater, adjusts the temperature and the pressure of measuring incasement air, and the driving piece of being convenient for can stably drive the pumping plate and slide.
Optionally, winding mechanism includes support and wind-up roll, the support rigid coupling is in the fixing base, the wind-up roll rotates to be connected on the support, survey the rope with the wind-up roll rigid coupling, just survey the rope rolling and be in on the wind-up roll, be provided with on the support and be used for the drive wind-up roll pivoted motor.
Through adopting above-mentioned technical scheme, the support is stably erect the wind-up roll and is fixed in the fixing base, when adjusting the height of measuring box in the geothermol power well, only needs the starter motor, and the motor drives the wind-up roll and rotates, and pivoted wind-up roll can receive and release the measuring rope, and then realizes adjusting the height of measuring box in the geothermol power well.
Optionally, a plurality of projections for increasing friction between the meter wheel and the measuring rope are uniformly distributed on the circumferential wall of the meter wheel abutted to the measuring rope.
Through adopting above-mentioned technical scheme, the lug can increase the friction between measuring rope and the meter rice wheel for the measuring rope can drive the meter rice wheel through the friction and carry out stable rotation, avoids producing the phenomenon of skidding between measuring rope and the meter rice wheel, and then realizes accurately measuring the height of measuring box in the geothermol power well, improves the measurement accuracy to the well water level in the geothermol power well.
Optionally, the sealing element is provided as a sealing ferrule, and the sealing ferrule is wrapped on the circumferential wall of the pumping plate.
Through adopting above-mentioned technical scheme, sealed lasso can be clogged the clearance between board and the measuring box inner wall of drawing water for drawing water board and measuring box keep away from and form airtight cavity between the inlet opening one end inner wall, can control the flow that well water entered into the measuring box through the slip of driving board of drawing water in the measuring box, make the measuring box can carry out discontinuous settlement in the geothermol power well.
In a second aspect, the present application provides an automatic monitoring method for a middle-deep geothermal well, which adopts the following technical scheme:
an automatic monitoring method for a middle-deep geothermal well comprises the following steps:
the method comprises the following steps that firstly, a measuring box is hung and placed into a geothermal well through a measuring rope and is in contact with the water surface, the height of the water level in the geothermal well at the moment is detected through a digital display mechanism, and signals are transmitted to a display;
step two, starting a driving part, driving the pumping plate to slide by the driving part, enabling well water to enter the measuring box to increase the weight of the measuring box, synchronously adjusting the height of the measuring box in the geothermal well through a measuring rope, and detecting the water temperature and the water quality conditions at different heights in the geothermal well through a temperature sensor and a detecting part;
and step three, starting the driving piece, driving the water pumping plate to slide by the driving piece, discharging well water from the measuring box quickly, starting the winding mechanism, and pulling out the measuring box from the well water of the geothermal well through the measuring rope.
By adopting the technical scheme, the height of the measuring box in the geothermal well is adjusted through the measuring rope, so that the lower end surface of the measuring box is only contacted with the water surface and is not influenced by the buoyancy of water to act, the height of the lower end surface of the measuring box is the water level of the well water in the geothermal well at the moment, and the digital display mechanism can transmit the signal of the water level at the moment to the display to display; the driving piece drives the pumping plate to slide, so that well water quantitatively enters the measuring box, the whole weight of the measuring box is increased, the measuring box stably sinks in the well water, and the water temperature and the water quality at different depths in the well are detected.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the winding mechanism is driven to adjust the height of the measuring box in the geothermal well under the interaction of the distance sensor and the tension sensor, so that the lower end face of the measuring box is only contacted with the water surface and is not influenced by the buoyancy of water, the height of the lower end face of the measuring box is the water level of well water in the geothermal well, and the measuring precision of the water level of the well water in the geothermal well is improved;
2. the driving piece and the winding mechanism are started discontinuously, so that well water quantitatively enters the measuring box, the whole weight of the measuring box is increased, the measuring box can be settled to different depths, the water temperature and the water quality at different depths are detected, and the measuring precision of the water temperature and the water quality of the well water in the geothermal well is improved;
3. the pressure in the measuring box is monitored through the pressure gauge, the opening and closing of the switch are controlled, the on-off of the current in the electric heating sheet is controlled, the temperature and the pressure of the air in the measuring box are adjusted, the driving piece can stably drive the water pumping plate to slide, and the whole weight of the measuring box is adjusted.
Drawings
FIG. 1 is a schematic structural diagram of the whole in the embodiment of the present application;
FIG. 2 is a sectional view of a fixing base, a display, a measuring box, a measuring device, a water pumping plate and a motor in the embodiment of the present application;
FIG. 3 is a schematic structural diagram of a measuring device, a temperature sensor and a bump in an embodiment of the present application;
FIG. 4 is a sectional view of a measuring chamber, a distance sensor, a temperature sensor, a detecting member, a water pumping plate, a driving member, an electric heating plate, a switch and a pressure gauge in the embodiment of the present application;
FIG. 5 is a schematic flow chart of an automatic monitoring method for a deep geothermal well in an embodiment of the present application.
Reference numerals: 1. a fixed seat; 2. a display; 3. a measuring box; 4. a measuring device; 41. rope measurement; 42. a distance sensor; 43. a tension sensor; 44. a winding mechanism; 441. a support; 442. a wind-up roll; 45. a digital display mechanism; 451. a frame; 452. a meter wheel; 453. a pinch roller; 454. a rotary encoder; 5. a temperature sensor; 6. a detection member; 7. a water inlet hole; 8. a water pumping plate; 9. a drive member; 10. an electric heating sheet; 11. a switch; 12. a pressure gauge; 13. a motor; 14. a bump; 15. and sealing the ferrule.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses a middle and deep geothermal well automatic monitoring system.
Referring to fig. 1 and 2, the automatic monitoring system for the middle-deep geothermal well comprises a fixed base 1, a display 2 and a measuring box 3.
Referring to fig. 1 and 2, fixing base 1 is through the vertical fixed connection of screw in well head department, and fixing base 1 is hollow setting, and fixing base 1 is close to the one end of well head and is the opening setting, and fixing base 1 keeps away from one of well head and serves to close the apron through the hinge connection lid, and display 2 passes through screw fixed connection on fixing base 1's apron.
Referring to fig. 2 and 3, the measuring box 3 is made of a low-density heat-insulating material, the measuring box 3 is arranged in a hollow manner, in the embodiment of the application, the measuring box 3 is arranged in a cylindrical shape, the measuring box 3 is arranged in the fixing base 1 in a lifting manner, a measuring device 4 for measuring the water level is arranged on the measuring box 3, and the measuring device 4 comprises a measuring rope 41, a distance sensor 42, a tension sensor 43, a winding mechanism 44 and a digital display mechanism 45;
referring to fig. 2 and 3, the winding mechanism 44 includes a bracket 441 and a winding roller 442, the bracket 441 is horizontally welded and fixed on the inner wall of the fixing base 1, the winding roller 442 is horizontally and rotatably connected to the bracket 441 through a rotating bearing, a hole for the penetration of the measuring rope 41 is formed in the bracket 441, one end of the measuring rope 41 is fixedly connected to the winding roller 442, the winding roller 442 winds the measuring rope 41, and the other end of the measuring rope 41 is located below the bracket 441 through the hole; the bracket 441 is fixedly connected with a motor 13 through a screw, and an output shaft of the motor 13 is coaxially and fixedly connected with one end of the winding roller 442 through a coupler; the motor 13 drives the winding roller 442 to rotate, and the rotating winding roller 442 can wind and unwind the measuring string 41.
Referring to fig. 2 and 3, tension sensor 43 is fixedly connected to one end of measuring line 41 far away from wind-up roll 442 through a hook, one end of tension sensor 43 far away from measuring line 41 is fixedly connected with measuring box 3 through a screw, tension sensor 43 is electrically connected with motor 13, and tension sensor 43 can detect the acting force of measuring box 3 on measuring line 41.
Referring to fig. 2 and 3, the distance sensor 42 is located on an end surface of the side of the measuring box 3 away from the tension sensor 43, the distance sensor 42 is fixedly connected to the measuring box 3 through a screw, and the distance sensor 42 is electrically connected with the motor 13; when detecting the water level of well water in a geothermal well, the motor 13 is started, the measuring box 3 slowly descends towards the direction close to the well water under the hanging of the measuring rope 41, when the distance sensor 42 detects that the lower end face of the measuring box 3 is in contact with the water surface, the signal is electrically transmitted to the motor 13, the motor 13 stops working, when the tension sensor 43 detects that the received tension is smaller than the whole weight of the measuring box 3, the tension sensor 43 transmits the signal to the motor 13, the motor 13 reversely starts the winding measuring rope 41, the height of the measuring box 3 is adjusted, the lower end face of the measuring box 3 is only in contact with the water surface and is not under the buoyancy action of the water, and at the moment, the height of the lower end face of the measuring box 3 is the water level of the geothermal well water.
Referring to fig. 2 and 3, the digital display mechanism 45 is located below the bracket 441, the digital display mechanism 45 includes a frame 451, a meter counting wheel 452, a pressing wheel 453 and a rotary encoder 454, the frame 451 is fixedly connected to the inner wall of the fixing base 1 through screws, the meter counting wheel 452 and the pressing wheel 453 are both rotatably connected to the frame 451 through rotating shafts, the rotating shafts of the meter counting wheel 452 and the rotating shafts of the pressing wheel 453 are arranged in parallel, the connecting line of the two rotating shafts is perpendicular to the measuring rope 41, the measuring rope 41 is located between the meter counting wheel 452 and the pressing wheel 453, the pressing wheel 453 tightly abuts the measuring rope 41 against the meter counting wheel 452, and a plurality of projections 14 for increasing friction between the meter counting wheel 452 and the measuring rope 41 are evenly distributed on the peripheral wall of the meter counting wheel 452; the rotary encoder 454 is fixedly connected to the frame 451 through a connecting shell, and the rotary encoder 454 is coaxially connected with a rotating shaft of the metering wheel 452 through a connecting piece; the rotary encoder 454 is electrically connected to the display 2, and the rotary encoder 454 can detect the number of turns of the meter wheel 452, so as to transmit the lifting distance of the measuring box 3 to the display 2 for displaying.
Referring to fig. 3 and 4, the bottom wall of the measurement box 3 is provided with a plurality of water inlet holes 7 in a penetrating manner, in the embodiment of the application, the plurality of water inlet holes 7 are uniformly distributed on the bottom wall of the measurement box 3, a water pumping plate 8 is arranged in the measurement box 3 above the water inlet holes 7 in a sliding manner in a lifting manner, the water pumping plate 8 is supported by a heat insulation material, the water pumping plate 8 is in a disc shape matched with the sliding manner of the inner wall of the measurement box 3, and the peripheral wall of the water pumping plate 8 is tightly abutted to the inner wall of the measurement box 3; be located and be provided with the driving piece 9 that is used for driving 8 lifts of water pumping plate to slide on the 3 inner walls of measurement box that water pumping plate 8 keeps away from inlet opening 7 one side, driving piece 9 and 2 electric connection of display, driving piece 9 sets up to the cylinder in this application embodiment, and the cylinder body part of cylinder passes through screw fixed connection on 3 roof of measurement box, and the piston rod of cylinder passes through screw fixed connection on water pumping plate 8.
Referring to fig. 3 and 4, a sealing member for filling a gap between the circumferential wall of the pumping plate 8 and the inner wall of the measuring tank 3 is arranged on the pumping plate 8, the sealing member is a sealing ferrule 15, and the sealing ferrule 15 is bonded and coated on the circumferential wall of the pumping plate 8 through waterproof glue; the combination of the sealing ring 15, the water pumping plate 8 and the inner wall of the measuring box 3 enables the water pumping plate 8 and the measuring box 3 to form a closed cavity between the inner walls of the ends far away from the water inlet hole 7, and the flow of well water entering the measuring box 3 is controlled by driving the water pumping plate 8 to slide in the measuring box 3.
Referring to fig. 3 and 4, be provided with temperature sensor 5 that is used for the temperature measurement on measuring box 3, temperature sensor 5 passes through screw fixed connection on measuring box 3 diapire, and temperature sensor 5 and display 2 electric connection, temperature sensor 5 can carry out the temperature to the well water in the geothermol power well and detect under measuring box 3's drive.
Referring to fig. 3 and 4, a detection part 6 for detecting water quality is arranged in the measurement box 3, in the embodiment of the present application, the detection part 6 may be a PH meter for detecting a PH value of well water in a geothermal well or a spectrophotometer for detecting a content of trace elements in the well water in the geothermal well, the detection part 6 is embedded on an end surface of the pumping plate 8 close to the water inlet hole 7, the detection part 6 is not protruded out of the end surface of the pumping plate 8, the detection part 6 is fixedly connected to the pumping plate 8 through screws, the detection part 6 is electrically connected to the display 2, and the detection part 6 can perform water quality detection on the well water entering the measurement box 3; flow in entering into measurement box 3 through control well water for measurement box 3's whole weight increase, discontinuously start driving piece 9 and motor 13, make measurement box 3 can subside to the different degree of depth, realize detecting the temperature and the quality of water of different degree of depth department.
Refer to fig. 3 and fig. 4, be provided with the regulating part of being convenient for regulate and control temperature in measuring box 3 in the measuring box 3, the regulating part sets up to electric heat piece 10, electric heat piece 10 is on water board 8 keeps away from the measuring box 3 inner wall of inlet opening 7 one side through screw fixed connection, electric heat piece 10 lets in behind the electric current and can produce the heat, be provided with on the measuring box 3 inner wall with electric heat piece 10 electric connection's switch 11, switch 11 passes through screw fixed connection on measuring box 3's inner wall, pre-buried direction and electric heat piece 10 intercommunication are passed through to switch 11's one end, switch 11's the other end and 2 electric connection of display, display 2 provides the electric current for electric heat piece 10 through switch 11.
Referring to fig. 3 and 4, a control piece for controlling the opening and closing of the switch 11 is arranged in the measuring box 3, the control piece is set to be a pressure gauge 12, the pressure gauge 12 is fixedly connected to the inner wall of the measuring box 3 on the side, away from the water inlet hole 7, of the water pumping plate 8 through screws, the pressure gauge 12 is supported by a high-temperature-resistant material, the pressure gauge 12 can monitor the air pressure in a closed cavity formed between the water pumping plate 8 and the inner wall of one end, away from the water inlet hole 7, of the measuring box 3, and the pressure; when the pressure gauge 12 monitors that the air pressure is larger than a set value, the pressure gauge 12 drives the switch 11 to be closed, the electric heating sheet 10 is electrified, the electric heating sheet 10 generates heat, the pressure in the closed cavity is reduced, and the driving piece 9 can stably drive the water pumping plate 8 to slide conveniently.
The implementation principle of the automatic monitoring system for the middle-deep geothermal well in the embodiment of the application is as follows: when the water level of well water in a geothermal well is detected, the motor 13 is started, the measuring box 3 slowly descends towards the direction close to the well water under the hanging of the measuring rope 41, when the distance sensor 42 detects that the lower end face of the measuring box 3 is in contact with the water surface, a signal is electrically transmitted to the motor 13, the motor 13 stops working, when the tension sensor 43 detects that the received tension is smaller than the whole weight of the measuring box 3, the tension sensor 43 electrically transmits the signal to the motor 13, the motor 13 reversely starts the winding measuring rope 41, the height of the measuring box 3 is adjusted, so that the lower end face of the measuring box 3 is only in contact with the water surface and is not under the buoyancy action of the water, and at the moment, the height of the lower end face of the measuring box 3 is the water level of the geothermal well water;
the measuring rope 41 is in a tensioning state under the traction of the measuring box 3, when the winding mechanism 44 winds and releases the measuring rope 41, the measuring rope 41 drives the meter wheel 452 to rotate through friction, the rotary encoder 454 records the rotation condition of the meter wheel 452, the rotation condition is converted into the lifting distance of the measuring box 3 and is electrically transmitted to the display 2, and the display 2 can display the water level condition of the well water in the current geothermal well.
When temperature and quality of water to geothermal well water examine time measuring, start driving piece 9, 8 orientation of driving piece 9 drive pumping plate are kept away from 7 directions of inlet opening and are slided, well water enters into measuring box 3 from inlet opening 7, it can carry out water quality testing to the well water in measuring box 3 to detect piece 6, measuring box 3's whole weight increase this moment, synchronous start winding mechanism 44, measuring rope 41 is in the lax state this moment, measuring box 3 sinks, driving piece 9 and winding mechanism 44 are discontinuously started, make measuring box 3 subside to the different degree of depth, realize detecting the temperature and the quality of water of different degree of depth department, the improvement is to the measurement accuracy of well water temperature and quality of water in the geothermal well.
The embodiment of the application also discloses an automatic monitoring method for the middle-deep geothermal well.
Referring to fig. 5, based on the automatic monitoring system for the middle-deep geothermal well, the automatic monitoring method for the middle-deep geothermal well comprises the following steps:
s1, the height of the measuring box 3 in the geothermal well is adjusted through the measuring rope 41, so that the lower end face of the measuring box 3 only contacts with the water surface and is not influenced by the buoyancy of water to act, the height of the lower end face of the measuring box 3 at the moment is the water level of the well water in the geothermal well, and the digital display mechanism 45 can transmit the signal of the water level height at the moment to the display 2 for displaying;
s2, starting the driving part 9, driving the water pumping plate 8 to slide towards the direction far away from the water inlet 7 by the driving part 9, quantitatively feeding well water into the measuring box 3 to increase the weight of the measuring box 3, synchronously adjusting the height of the measuring box 3 in the geothermal well through the measuring rope 41, and detecting the water temperature and water quality conditions at different heights in the geothermal well through the temperature sensor 5 and the detecting part 6;
s3, starting the driving part 9, driving the water pumping plate 8 to slide towards the direction close to the water inlet hole 7 by the driving part 9, discharging well water from the measuring box 3 quickly, starting the winding mechanism 44, pulling out the measuring box 3 from the well water of the geothermal well through the measuring rope 41, and waiting for the next detection.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. The utility model provides a middle and deep geothermal well automatic monitoring system, includes fixing base (1) fixed with the well head and is located display (2) on fixing base (1), its characterized in that: a measuring box (3) is arranged in the fixed seat (1) in a lifting manner, and a measuring device (4) for measuring the water level is arranged on the measuring box (3); the measuring box (3) is provided with a temperature sensor (5) for measuring temperature, and the temperature sensor (5) is electrically connected with the display (2); the measuring box (3) is internally provided with a detection piece (6) for detecting water quality, and the detection piece (6) is electrically connected with the display (2).
2. The automatic monitoring system for a mid-deep geothermal well according to claim 1, wherein: the measuring device (4) comprises a measuring rope (41), a distance sensor (42), a tension sensor (43), a winding mechanism (44) and a digital display mechanism (45) for monitoring the lifting distance of the measuring rope (41), the winding mechanism (44) and the digital display mechanism (45) are both arranged in the fixed seat (1), the digital display mechanism (45) is positioned below the winding mechanism (44), one end of the measuring rope (41) penetrates through the digital display mechanism (45) and is wound on the winding mechanism (44), the other end of the measuring rope (41) is fixedly connected with the tension sensor (43), one end, far away from the measuring rope (41), of the tension sensor (43) is fixedly connected with the measuring box (3), the distance sensor (42) is positioned on the end face, far away from the tension sensor (43), of the measuring box (3), and the distance sensor (42) and the tension sensor (43) are electrically connected with the winding mechanism (44).
3. The automatic monitoring system for a mid-deep geothermal well according to claim 2, wherein: digital display mechanism (45) includes frame (451), meter rice wheel (452), pinch roller (453) and rotary encoder (454), frame (451) rigid coupling is in fixing base (1), meter rice wheel (452) with pinch roller (453) all rotate to be connected in frame (451), survey rope (41) butt sets up meter rice wheel (452) with between pinch roller (453), rotary encoder (454) with meter rice wheel (452) coaxial rigid coupling, rotary encoder (454) are located on frame (451), just rotary encoder (454) with display (2) electric connection.
4. The automatic monitoring system for a mid-deep geothermal well according to claim 1, wherein: a water inlet hole (7) is arranged on the bottom wall of the measuring box (3) in a penetrating way, a water pumping plate (8) is arranged in the measuring box (3) above the water inlet hole (7) in a lifting and sliding way, the detection piece (6) is embedded on the end surface of the water pumping plate (8) close to the water inlet hole (7), the peripheral wall of the water pumping plate (8) is tightly abutted against the inner wall of the measuring box (3), a driving piece (9) for driving the water pumping plate (8) to lift and slide is arranged on the inner wall of the measuring box (3) which is positioned on one side of the water pumping plate (8) far away from the water inlet hole (7), the driving piece (9) is electrically connected with the display (2), a sealing piece used for filling a gap between the peripheral wall of the water pumping plate (8) and the inner wall of the measuring box (3) is arranged on the water pumping plate (8), and an adjusting part which is convenient for adjusting and controlling the temperature in the measuring box (3) is arranged in the measuring box (3).
5. The automatic monitoring system for a mid-deep geothermal well according to claim 4, wherein: the adjusting part is arranged to be an electric heating piece (10), the electric heating piece (10) is located the water pumping plate (8) is far away from one side of the water inlet hole (7) on the inner wall of the measuring box (3), a switch (11) electrically connected with the electric heating piece (10) is arranged on the inner wall of the measuring box (3), the switch (11) is far away from one end of the electric heating piece (10) and the display (2) are electrically connected, and a control part for controlling the opening and closing of the switch (11) is arranged in the measuring box (3).
6. The automatic monitoring system for a mid-deep geothermal well according to claim 5, wherein: the control piece is arranged to be a pressure gauge (12), the pressure gauge (12) is located on the inner wall, far away from the water inlet hole (7), of the measuring box (3) on one side of the water pumping plate (8), and the pressure gauge (12) is electrically connected with the switch (11).
7. The automatic monitoring system for a mid-deep geothermal well according to claim 2, wherein: winding mechanism (44) include support (441) and wind-up roll (442), support (441) rigid coupling is in fixing base (1), wind-up roll (442) rotate to be connected in on support (441), survey rope (41) with wind-up roll (442) rigid coupling, just survey rope (41) rolling is in on wind-up roll (442), be provided with on support (441) and be used for driving wind-up roll (442) pivoted motor (13).
8. The automatic monitoring system for a mid-deep geothermal well according to claim 3, wherein: the peripheral wall of the meter counting wheel (452) abutted against the measuring rope (41) is uniformly provided with a plurality of lugs (14) for increasing the friction between the meter counting wheel (452) and the measuring rope (41).
9. The automatic monitoring system for a mid-deep geothermal well according to claim 4, wherein: the sealing element is a sealing ferrule (15), and the sealing ferrule (15) is coated on the peripheral wall of the water pumping plate (8).
10. An automatic monitoring method for a middle-deep geothermal well is characterized by comprising the following steps: the automatic monitoring system for a middle-deep geothermal well according to any one of claims 1-9, comprising the following steps:
step one, hanging a measuring box (3) into a geothermal well through a measuring rope (41) and contacting with the water surface, detecting the height of the water level in the geothermal well at the moment through a digital display mechanism (45) and transmitting a signal to a display (2);
step two, starting a driving part (9), driving the water pumping plate (8) to slide by the driving part (9), enabling well water to enter the measuring box (3) to increase the weight of the measuring box (3), synchronously adjusting the height of the measuring box (3) in the geothermal well through a measuring rope (41), and detecting the water temperature and water quality conditions at different heights in the geothermal well through a temperature sensor (5) and a detecting part (6);
and step three, starting the driving part (9), driving the water pumping plate (8) to slide by the driving part (9), discharging well water from the measuring box (3) quickly, starting the winding mechanism (44), and pulling out the measuring box (3) from the well water of the geothermal well through the measuring rope (41).
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