CN201301703Y - Device for measuring water level of underground well - Google Patents
Device for measuring water level of underground well Download PDFInfo
- Publication number
- CN201301703Y CN201301703Y CNU2008201422000U CN200820142200U CN201301703Y CN 201301703 Y CN201301703 Y CN 201301703Y CN U2008201422000 U CNU2008201422000 U CN U2008201422000U CN 200820142200 U CN200820142200 U CN 200820142200U CN 201301703 Y CN201301703 Y CN 201301703Y
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- pulley
- metal hammer
- ranging
- stepper motor
- range finding
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Abstract
The utility model discloses a device for measuring underground dynamic and static water levels of a geothermal well. The technical scheme of the device is that a metal hammer is fixed by a molybdenum wire; after the molybdenum wire is wound around a winding pulley for circles through an angle pulley, the end heads of the molybdenum wire are fixed with a ranging pulley; a wheel shaft of the ranging pulley is connected with a stepper motor; the starting, the stopping and the turning directions of the stepper motor are controlled by a control system; the metal hammer is taken as an electrode, and a logging tube is taken as the other electrode; the metal hammer is communicated with a circuit when being in contact with a water surface; and the control system can calculate the length of the molybdenum wire wound around the ranging pulley according to a pulse signal sent by an inductive switch arranged on the ranging pulley, thereby determining the location of the water surface of the underground well. All measurement and control devices are positioned on the ground, and any underground test probe does not need to be installed, thereby effectively solving the problems that the test probe is easily damaged due to high geothermal water temperature, strong corrosiveness and poor sealing performance of the probe.
Description
Technical field
The utility model belongs to the electromechanical integration detection technique, is specifically related to the dynamic and static level measurement device in geothermal well down-hole.
Background technology
At present, the utilization of geothermal energy resources is important power-saving technologies.But in the geothermal energy resources development and utilization, the measuring method of geothermal well water level is comparatively backward.Manual testing's measuring method such as present employing: with about 8 millimeters iron Chui (probe), one side is connected by lead, touch water level along well logging pipe or well-sinking, the other end and the ammeter of lead join, ammeter is connected when metal probe touches the water level liquid level, then by measuring the degree of depth that conductor length draws the underground heat water level.Though this method operation is simple, need the labor intensive bad weather to measure, and measuring technology is comparatively backward.Other measuring methods commonly used have: at down-hole fixation pressure sensor, pressure signal is delivered to ground by lead receives instrument, calculated the dynamic and static water level of geothermal well by pressure signal.Though this method has solved the problem of artificial in-site measurement, but because probe need place GEOTHERMAL WATER in for a long time, so the heatproof of probe, corrosion-resistant, sealing, diamagnetic disturbed etc. require very highly, therefore cost an arm and a leg, home products can't meet the demands at present.The employing inflation method of testing that also has promptly charges into nitrogen in geothermal well.Though this method need not placed probe in the down-hole, most well head sealings are undesirable, and gas leaks very fast, needs often to change gas cylinder, safeguards difficulty.And carry out need dismantling gas tube when wellhead equipment is safeguarded when needs, the working time of lifting, decline pump will be prolonged, the user is difficult to accept.
Summary of the invention
In order to address the above problem, the purpose of this utility model provides a kind of missile silo level measurement device that adopts the machine driving tracking mode, goes for the geothermal well level measuring of different temperatures and water quality.
Below in conjunction with accompanying drawing know-why of the present utility model is described.The missile silo level measurement device has: metal hammer, angle pulley, winding pulley, range finding pulley, well logging pipe, stepper motor and control corresponding system etc.Metal hammer is fixed with molybdenum filament, for making molybdenum filament change horizontal direction into by vertical direction angle pulley is housed, and molybdenum filament is wound in a few molybdenum filament terminations, back of winding pulley through angle pulley and fixes with the range finding pulley, and the range finding pulley axle is connected with stepper motor.The signal identifying is: metal hammer is an electrode, with the contacted well logging pipe of underground water be another electrode, guarantee that two electrodes insulate on mounting structure.Apply voltage and sampling resistor between two electrodes, because molybdenum filament is connected with metal hammer, so circuit is connected when metal hammer contacts with the water surface, control system can receive sampling resistor two end signals.On the range finding pulley inductive switch is housed, the number of pulses of inductive switch output is directly proportional with the rotating cycle of range finding pulley, the relative displacement of molybdenum filament can be calculated by the diameter of range finding pulley and the number of pulses of inductive switch output, water level elevation can be accurately measured thus.Also can detect the step number of stepper motor rotation and accurately measure water level elevation.Measure and control instrument is installed in ground and controls automatically, to equipment heatproof, corrosion-resistant and seal request is lower.
Description of drawings
Shown in accompanying drawing be the utility model structure principle chart.
The specific embodiment
Below by specific embodiment the utility model is described further.The missile silo level measurement device has metal hammer 1, angle pulley 2, winding pulley 3, range finding pulley 4, stepper motor 5 and control corresponding system 6 etc.Metal hammer 1 usefulness molybdenum filament is fixed.Molybdenum filament process angle pulley 2 is wound in range finding pulley 4 a few molybdenum filament terminations, back and fixes with range finding pulley 4, and range finding pulley 4 wheel shafts are connected with stepper motor 5.Metal hammer 1 is an electrode, with the contacted well logging pipe 6 of underground water be another electrode, apply voltage and sampling resistor between two electrodes.By the startup of control system 7 control step motors 5, stop and rotation direction.The fixed sliding opinion 2 of commutation is vertically mounted on the top of well logging pipe 6.The well logging pipe is to be specifically designed to the test water level, and independently is installed to the metal tube of an about 20-25mm of diameter of down-hole.The mechanical driving device that metal hammer 1 is moved up and down is fixed on the insulation flat board and also is installed on the underground heat well head.To accurately measure the initial range of metal hammer 1 and GEOTHERMAL WATER well water position during installation, and deposit these data in control system 7.Apply 5V dc source and 500 ohm of left and right sides sampling resistors formation current loops between metal hammer and well logging pipe two electrodes, the magnitude of voltage at sampling resistor two ends will as judging whether metal hammer contacts the signal of the water surface, and this signal is received by control system 7.Control system regularly detects the current loop signal, is judged as detection signal and opens circuit, and the expression metal hammer does not contact with the water surface, and control system 7 is rotated in the forward starter motor and puts down metal hammer 1, and until current loop conducting just, the expression metal hammer contacts with the water surface.The diameter of range finding pulley is known, metal hammer 1 is known with the initial range of geothermal well water level, as long as measure the length that molybdenum filament is wound into the range finding pulley, promptly multiply by the diameter of range finding pulley by the number of pulses of inductive switch output, can calculate the relative shift of molybdenum filament (metal hammer) from the initial point position to the water surface, accurately measure water level elevation thus.Subject to the foregoing, also can be when current loop conducting just, measure the step number of stepper motor 5 rotations and accurately measure water level elevation: promptly the stepper motor step-by-step impulse quantity diameter that multiply by the pulley of finding range equals the relative shift of molybdenum filament from the initial point position to the water surface.Because the geothermal well SEA LEVEL VARIATION is subjected to multiple factor affecting, when the timing detection signal is judged current loop for connection, in order accurately to locate metal hammer and liquid level position contacting, stepper motor will be carried metal hammer in the reverse rotation, repeat to transfer the metal hammer step, repeatedly during the measurement result basically identical, confirm the absolute altitude of well location liquid level.
Characteristics of the present utility model are: because the present invention adopts the machine driving following principle, and under the prerequisite that low cost drops into, Solved variety of issue artificial and that other measuring method is brought. Any Electronic Testing at first need to be installed in the down-hole to be visited Head can solve effectively because GEOTHERMAL WATER temperature height, corrosivity are strong, the poorly sealed institute of the probe test probe that causes is fragile Problem. Secondly, test process does not need to consume any material, such as special gas etc., reduces maintenance cost. This test System can reach automatic control, and all are measured and control device all is positioned on the ground, reduced requirements such as each parts heatproofs, Installation requirement easy to maintenance, low-cost, easy, but Measurement accuracy underground water level. Adopting the method can not cause environment appoints What impact has very big application and popularization value in the geothermal utilization management.
Claims (2)
1. missile silo level measurement device, has metal hammer, angle pulley, winding pulley, the range finding pulley, stepper motor and control corresponding system, it is characterized in that metal hammer (1) fixes with molybdenum filament, molybdenum filament is wound in a few molybdenum filament terminations, back of winding pulley (3) through angle pulley (2) and fixes with range finding pulley (4), range finding pulley (4) wheel shaft is connected with stepper motor (5), metal hammer (1) is an electrode, with the contacted well logging pipe of underground water (6) be another electrode, apply voltage and sampling resistor between two electrodes, by the startup of control system (7) control step motor (5), stop and rotation direction.
2. according to the described missile silo level measurement device of claim 1, it is characterized in that on the described range finding pulley (4) inductive switch being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201422000U CN201301703Y (en) | 2008-09-26 | 2008-09-26 | Device for measuring water level of underground well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201422000U CN201301703Y (en) | 2008-09-26 | 2008-09-26 | Device for measuring water level of underground well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301703Y true CN201301703Y (en) | 2009-09-02 |
Family
ID=41085327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201422000U Expired - Fee Related CN201301703Y (en) | 2008-09-26 | 2008-09-26 | Device for measuring water level of underground well |
Country Status (1)
| Country | Link |
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| CN (1) | CN201301703Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837307A (en) * | 2017-04-18 | 2017-06-13 | 福州铁建建筑有限公司 | A kind of auxiliary Simple measurement device and its application method for surveying water level well level of ground water |
| CN107328454A (en) * | 2017-07-25 | 2017-11-07 | 重庆工程职业技术学院 | Groundwater level observation device for hydrogeological hole |
| CN108343431A (en) * | 2018-02-08 | 2018-07-31 | 济南大学 | A kind of bedrock fracture ground water regime drift net probes into method |
| CN109577953A (en) * | 2018-12-29 | 2019-04-05 | 青海岩土工程勘察咨询有限公司 | A kind of drilling liquid monitoring device |
| CN113175319A (en) * | 2021-05-06 | 2021-07-27 | 湖北省地质局武汉水文地质工程地质大队 | Automatic monitoring system and method for middle-deep geothermal well |
| CN116464429A (en) * | 2023-04-18 | 2023-07-21 | 哈尔滨工业大学（深圳） | Water level measurement equipment in rock-soil drilling hole |
-
2008
- 2008-09-26 CN CNU2008201422000U patent/CN201301703Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837307A (en) * | 2017-04-18 | 2017-06-13 | 福州铁建建筑有限公司 | A kind of auxiliary Simple measurement device and its application method for surveying water level well level of ground water |
| CN107328454A (en) * | 2017-07-25 | 2017-11-07 | 重庆工程职业技术学院 | Groundwater level observation device for hydrogeological hole |
| CN107328454B (en) * | 2017-07-25 | 2019-08-06 | 重庆工程职业技术学院 | Groundwater level observation device for hydrogeological hole |
| CN108343431A (en) * | 2018-02-08 | 2018-07-31 | 济南大学 | A kind of bedrock fracture ground water regime drift net probes into method |
| CN109577953A (en) * | 2018-12-29 | 2019-04-05 | 青海岩土工程勘察咨询有限公司 | A kind of drilling liquid monitoring device |
| CN109577953B (en) * | 2018-12-29 | 2023-12-22 | 青海岩土工程勘察咨询有限公司 | Drilling fluid liquid level monitoring device |
| CN113175319A (en) * | 2021-05-06 | 2021-07-27 | 湖北省地质局武汉水文地质工程地质大队 | Automatic monitoring system and method for middle-deep geothermal well |
| CN116464429A (en) * | 2023-04-18 | 2023-07-21 | 哈尔滨工业大学（深圳） | Water level measurement equipment in rock-soil drilling hole |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20110926 |