CN113503152A - Drill bit working condition intelligent control system with pressure sensor - Google Patents
Drill bit working condition intelligent control system with pressure sensor Download PDFInfo
- Publication number
- CN113503152A CN113503152A CN202110635430.0A CN202110635430A CN113503152A CN 113503152 A CN113503152 A CN 113503152A CN 202110635430 A CN202110635430 A CN 202110635430A CN 113503152 A CN113503152 A CN 113503152A
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- module
- drill bit
- electrically connected
- pressure sensor
- control system
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- 238000012545 processing Methods 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000012790 confirmation Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims 5
- 241001330002 Bambuseae Species 0.000 claims 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 5
- 239000011425 bamboo Substances 0.000 claims 5
- 239000011550 stock solution Substances 0.000 claims 5
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000011835 investigation Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/005—Below-ground automatic control systems
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0004—Force transducers adapted for mounting in a bore of the force receiving structure
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention discloses a drill working condition intelligent control system with a pressure sensor, which relates to the technical field of drill bits and comprises a central processing unit, wherein the central processing unit is in transmission connection with a data acquisition module through a wireless module, the input end of the data acquisition module is respectively and electrically connected with the pressure sensor, the vibration sensor, a temperature sensor and the output end of an inclination angle sensor through leads, and the central processing unit is in bidirectional connection with a data processing unit through leads. The device carries out on-line monitoring through the various parameters to the drill bit during operation, when the drill bit takes place unusually, discovery that can be timely to the cut-off power supply, the frequency of adjustment voltage carries out cooling work to the drill bit simultaneously, prevents that the high temperature of drill bit from taking place to damage, when cooling down the drill bit, can adjust the angle of drain pipe, and then conveniently cools down the work to the position of drill bit difference.
Description
Technical Field
The invention relates to the technical field of drill bits, in particular to an intelligent drill bit working condition control system with a pressure sensor.
Background
The drilling machine is an engineering machine for drilling underground space, is generally used in the fields of engineering investigation, petroleum investigation and exploitation, mineral exploration, municipal engineering construction, geological exploration, new energy exploitation and the like, and is matched with a drill bit when in use. The drilling rig can be large outdoor water well, oil well, natural gas well drilling equipment, or small equipment that can be moved by a single person.
However, when the existing drilling machine works, the drill bit can work under various conditions, and the drill bit on the existing drilling machine is not provided with the monitoring device, so that when the drill bit is abnormal, the drill bit cannot be timely controlled correspondingly, and the service life of the drill bit can be influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an intelligent drill working condition control system with a pressure sensor, which solves the problems that when the existing drilling machine works, a drill can work under various conditions, and the drill on the existing drilling machine is not provided with a monitoring device, so that when the drill is abnormal, the drill cannot be controlled correspondingly in time, and the service life of the drill is influenced.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a drill bit operating mode intelligence control system with pressure sensor, includes central processing unit, through wireless module transmission connection between central processing unit and the data acquisition module, the input of data acquisition module pass through the wire respectively with pressure sensor and vibration sensor, temperature sensor and inclination sensor's output electric connection, realize both way junction through the wire between central processing unit and the data processing unit, and central processing unit's output pass through the wire respectively with control system and early warning system's input electric connection.
The data processing unit comprises a data receiving module, the output end of the data receiving module is electrically connected with the input end of the data comparison module through a wire, the output end of the data comparison module is electrically connected with the input end of the data confirmation module through a wire, and the input end of the data comparison module is electrically connected with the output end of the threshold setting module through a wire.
The control system comprises a control module, the output end of the control module is electrically connected with the power module and the input end of the cooling system through leads respectively, and the output end of the control module is electrically connected with the input end of the frequency conversion module through leads.
Cooling system is including the liquid storage cylinder, below one side of liquid storage cylinder is rotated and is connected with the drain pipe, and the lower surface rotation of liquid storage cylinder is connected with electric putter, electric putter's output shaft rotates and connects in the one end side of drain pipe, the inside lower surface of liquid storage cylinder is provided with the pump body, the delivery end fixedly connected with conveyer pipe of the pump body, the one end of conveyer pipe pass the inside side of liquid storage cylinder and with the upper end fixed connection of drain pipe.
Preferably, the pressure sensor, the vibration sensor, the temperature sensor and the inclination angle sensor are all fixedly connected to the inner wall of the drill bit.
Preferably, the threshold setting module comprises a normal threshold module and a limit threshold module, the threshold setting module is a normal range value of a drill bit working parameter, and the limit threshold module is a drill bit working parameter limit range value.
Preferably, the output end of the data receiving module is electrically connected with the input end of the graph display module through a wire, and the input end of the data receiving module is electrically connected with the output end of the time module through a wire.
Preferably, the power module is an output power source when the drill bit works, and the frequency conversion module is a voltage frequency value when the drill bit works.
Preferably, the liquid storage cylinder is internally provided with cooling water, and the conveying pipe is an elastic material component.
Preferably, the early warning system comprises an angle calculation module, an output end of the angle calculation module is electrically connected with an input end of the difference calculation module through a wire, an input end of the difference calculation module is electrically connected with an output end of the positioning threshold module through a wire, an output end of the difference calculation module is electrically connected with an input end of the comparison module through a wire, and an output end of the comparison module is electrically connected with an input end of the alarm module through a wire.
Preferably, the positioning threshold module is a normal range value of the offset angle required when the drill bit works.
Advantageous effects
The invention provides a drill working condition intelligent control system with a pressure sensor. Compared with the prior art, the method has the following beneficial effects:
1. the intelligent drill working condition control system with the pressure sensor is characterized in that the output end of a data receiving module is electrically connected with the input end of a data comparison module through a lead, the output end of the data comparison module is electrically connected with the input end of a data confirmation module through a lead, the input end of the data comparison module is electrically connected with the output end of a threshold setting module through a lead, the output end of a control module is electrically connected with the input ends of a power supply module and a cooling system respectively through leads, the output end of the control module is electrically connected with the input end of a frequency conversion module through a lead, when a drilling machine drives a drill to work, various parameters of the drill during working can be monitored on line, when the drill is abnormal, the power supply can be timely found, the voltage frequency can be adjusted, the drill is cooled at the same time, and the drill is prevented from being damaged due to overhigh temperature, when cooling the drill bit, can adjust the angle of drain pipe, and then conveniently carry out cooling work to the position that the drill bit is different, prolonged the life of drill bit.
2. This drill bit operating mode intelligence control system with pressure sensor, the output through angle calculation module passes through the wire and the input electric connection of difference calculation module, the input of difference calculation module passes through the wire and fixes a position the output electric connection of threshold value module, and the output of difference calculation module passes through the wire and the input electric connection of comparison module, the output of comparison module passes through the wire and the input electric connection of alarm module, in-process when the drill bit is at work, can carry out real-time supervision to the skew angle of drill bit, if the angle of skew exceedes normal range value, can be timely send the early warning and remind personnel, make personnel give the position of drill bit and correct and come, prevent that the drill bit from beating partially.
Drawings
FIG. 1 is a schematic frame diagram of the present invention;
FIG. 2 is a schematic block diagram of a data processing unit according to the present invention;
FIG. 3 is a schematic block diagram of the control system of the present invention;
FIG. 4 is a schematic diagram of the cooling system of the present invention;
fig. 5 is a schematic frame diagram of the early warning system of the present invention.
In the figure: 1. a central processing unit; 2. a data acquisition module; 3. a wireless module; 4. a pressure sensor; 5. a vibration sensor; 6. a temperature sensor; 7. an inclination angle sensor; 8. a data processing unit; 81. a data receiving module; 82. a graph display module; 83. a data comparison module; 84. a data confirmation module; 85. a time module; 86. a threshold setting module; 861. a normal threshold module; 862. a limit threshold module; 9. a control system; 91. a control module; 92. a power supply module; 93. a cooling system; 931. a liquid storage cylinder; 932. a liquid outlet pipe; 933. an electric push rod; 934. a pump body; 935. a delivery pipe; 94. a frequency conversion module; 10. an early warning system; 101. an angle calculation module; 102. a difference value calculation module; 103. a positioning threshold module; 104. a comparison module; 105. and an alarm module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an intelligent drill working condition control system with a pressure sensor comprises a central processing unit 1, wherein the central processing unit 1 is in transmission connection with a data acquisition module 2 through a wireless module 3, the input end of the data acquisition module 2 is respectively and electrically connected with the pressure sensor 4, the vibration sensor 5, the temperature sensor 6 and the output end of an inclination angle sensor 7 through leads, the central processing unit 1 is in bidirectional connection with a data processing unit 8 through leads, the output end of the central processing unit 1 is respectively and electrically connected with the input ends of a control system 9 and an early warning system 10 through leads, the pressure sensor 4, the vibration sensor 5, the temperature sensor 6 and the inclination angle sensor 7 are fixedly connected with the inner wall of a drill, the model of the pressure sensor 4 is SAS-21, the model of the vibration sensor 5 is SAD-32, and the model of the temperature sensor 6 is ADA-56, the tilt angle sensor 7 is of the type RGF-56.
Referring to fig. 2, in the embodiment of the present invention, the data processing unit 8 includes a data receiving module 81, an output end of the data receiving module 81 is electrically connected to an input end of the data comparing module 83 through a wire, an output end of the data comparing module 83 is electrically connected to an input end of the data confirming module 84 through a wire, the input end of the data comparison module 83 is electrically connected with the output end of the threshold setting module 86 through a wire, the threshold setting module 86 comprises a normal threshold module 861 and an extreme threshold module 862, the threshold setting module 86 is a normal range value of a parameter of the drill bit, the extreme threshold module 862 is a limit range value of the parameter of the drill bit, the threshold setting module 86 comprises a normal threshold module 861 and an extreme threshold module 862, the threshold setting module 86 is a normal range value of the parameter of the drill bit, and the extreme threshold module 862 is a limit range value of the parameter of the drill bit.
Referring to fig. 3, in the embodiment of the present invention, the control system 9 includes a control module 91, an output end of the control module 91 is electrically connected to input ends of the power module 92 and the cooling system 93 through a wire, respectively, and an output end of the control module 91 is electrically connected to an input end of the frequency conversion module 94 through a wire.
Referring to fig. 4, in the embodiment of the present invention, the cooling system 93 includes a liquid storage barrel 931, a liquid outlet tube 932 is rotatably connected to one side of a lower portion of the liquid storage barrel 931, a lower surface of the liquid storage barrel 931 is rotatably connected to an electric push rod 933, an output shaft of the electric push rod 933 is rotatably connected to a side surface of one end of the liquid outlet tube 932, a pump body 934 is disposed on a lower surface of an inner portion of the liquid storage barrel 931, a delivery tube 935 is fixedly connected to a water outlet end of the pump body 934, one end of the delivery tube 935 passes through the inner side surface of the liquid storage barrel 931 and is fixedly connected to an upper end of the liquid outlet tube 932, the electric push rod 933 is ASF-69, the power module 92 is an output power source when the drill bit works, the frequency conversion module 94 is a voltage frequency value when the drill bit works, cooling water is disposed inside the liquid storage barrel 931, the delivery tube 935 is an elastic member, and the elastic material facilitates rotation of the liquid outlet tube 932.
Referring to fig. 5, in the embodiment of the present invention, the warning system 10 includes an angle calculation module 101, an output end of the angle calculation module 101 is electrically connected to an input end of a difference calculation module 102 through a conductive wire, an input end of the difference calculation module 102 is electrically connected to an output end of a positioning threshold module 103 through a conductive wire, an output end of the difference calculation module 102 is electrically connected to an input end of a comparison module 104 through a conductive wire, an output end of the comparison module 104 is electrically connected to an input end of an alarm module 105 through a conductive wire, and the positioning threshold module 103 is a normal range value of an offset angle required by a drill bit during operation.
The working principle is as follows: when the drill bit works, the pressure sensor 4 detects the pressure applied to the drill bit, the vibration sensor 5 detects the vibration generated by the drill bit, the temperature sensor 6 detects the temperature generated by the drill bit, the inclination angle sensor 7 detects the offset angle generated by the drill bit, the data acquisition module 2 collects the detected data, the data are transmitted to the central processing unit 1 through the wireless module 3 after being collected, the data receiving module 81 receives the detected data, the normal range values of the vibration, the temperature and the pressure during the working of the drill bit are input into the normal threshold module 861 on the threshold setting module 86, the limit range values of the vibration, the temperature and the pressure during the working of the drill bit are input into the limit threshold module 862, the parameters during the working of the drill bit are displayed in a graph form by the graph display module 82, and the time module 85 detects the working time of the drill bit, the data comparison module 83 compares the working parameters of the drill bit with the values in the normal threshold module 861 and the limit threshold module 862, then the data confirmation module 84 determines in which range value the working parameters of the drill bit are, if the parameters are in the normal range value, the surface drill bit normally works, if the parameters are in the limit range value, the control module 91 controls the power module 92 to work, so that the power of the drilling machine is turned off, or the frequency of the voltage is controlled by the frequency conversion module 94, so that the rotating speed of the drill bit is changed, the drill bit is prevented from being damaged, the liquid storage cylinder 931 is fixed on the drilling machine, and the electric push rod 933 and the pump body 934 respectively work, under the rotation of the liquid outlet 932, the electric push rod 933 drives the liquid outlet 932 to rotate, so that the liquid outlet 932 is adjusted to a proper position, then the pump body 934 works, the pump body 934 pumps the cooling water in the liquid storage cylinder 931 into the liquid outlet 932, and then sprays the cooling water to the drill bit to play a role, further, when the drill bit is in operation, the angle calculation module 101 determines the inclination angle of the drill bit according to the condition detected by the inclination angle sensor 7, then the difference calculation module 102 calculates the difference of the deviation normal value of the drill bit according to the normal angle range value in the positioning threshold module 103, then the comparison module 104 compares the difference, and if the difference exceeds the normal range value, the alarm module 105 sends an alarm to remind personnel to correct the deviation in time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a drill bit operating mode intelligence control system with pressure sensor, includes central processing unit (1), its characterized in that: the central processing unit (1) is in transmission connection with the data acquisition module (2) through the wireless module (3), the input end of the data acquisition module (2) is electrically connected with the output ends of the pressure sensor (4), the vibration sensor (5), the temperature sensor (6) and the inclination angle sensor (7) through wires respectively, the central processing unit (1) is in bidirectional connection with the data processing unit (8) through wires, and the output end of the central processing unit (1) is electrically connected with the input ends of the control system (9) and the early warning system (10) through wires respectively;
the data processing unit (8) comprises a data receiving module (81), the output end of the data receiving module (81) is electrically connected with the input end of a data comparison module (83) through a lead, the output end of the data comparison module (83) is electrically connected with the input end of a data confirmation module (84) through a lead, and the input end of the data comparison module (83) is electrically connected with the output end of a threshold setting module (86) through a lead;
the control system (9) comprises a control module (91), the output end of the control module (91) is electrically connected with the input ends of the power module (92) and the cooling system (93) through leads respectively, and the output end of the control module (91) is electrically connected with the input end of the frequency conversion module (94) through leads;
cooling system (93) is including stock solution section of thick bamboo (931), the below one side rotation of stock solution section of thick bamboo (931) is connected with drain pipe (932), and the lower surface rotation of stock solution section of thick bamboo (931) is connected with electric putter (933), the output shaft rotation of electric putter (933) is connected in the one end side of drain pipe (932), the inside lower surface of stock solution section of thick bamboo (931) is provided with the pump body (934), the play water end fixedly connected with conveyer pipe (935) of the pump body (934), the one end of conveyer pipe (935) pass the inside side of stock solution section of thick bamboo (931) and with the upper end fixed connection of drain pipe (932).
2. The intelligent control system for the working condition of the drill bit with the pressure sensor as claimed in claim 1, wherein: and the pressure sensor (4), the vibration sensor (5), the temperature sensor (6) and the inclination angle sensor (7) are fixedly connected to the inner wall of the drill bit.
3. The intelligent control system for the working condition of the drill bit with the pressure sensor as claimed in claim 1, wherein: the threshold setting module (86) comprises a normal threshold module (861) and a limit threshold module (862), the threshold setting module (86) is a normal range value of a parameter of the drill bit operation, and the limit threshold module (862) is a limit range value of the parameter of the drill bit operation.
4. The intelligent control system for the working condition of the drill bit with the pressure sensor as claimed in claim 1, wherein: the output end of the data receiving module (81) is electrically connected with the input end of the graph display module (82) through a lead, and the input end of the data receiving module (81) is electrically connected with the output end of the time module (85) through a lead.
5. The intelligent control system for the working condition of the drill bit with the pressure sensor as claimed in claim 1, wherein: the power module (92) is an output power supply when the drill bit works, and the frequency conversion module (94) is a voltage frequency value when the drill bit works.
6. The intelligent control system for the working condition of the drill bit with the pressure sensor as claimed in claim 1, wherein: the inside of liquid storage barrel (931) is provided with cooling water, conveyer pipe (935) is an elastic material component.
7. The intelligent control system for the working condition of the drill bit with the pressure sensor as claimed in claim 1, wherein: the early warning system (10) comprises an angle calculation module (101), wherein the output end of the angle calculation module (101) is electrically connected with the input end of a difference calculation module (102) through a lead, the input end of the difference calculation module (102) is electrically connected with the output end of a positioning threshold module (103) through a lead, the output end of the difference calculation module (102) is electrically connected with the input end of a comparison module (104) through a lead, and the output end of the comparison module (104) is electrically connected with the input end of an alarm module (105) through a lead.
8. The intelligent control system for the working condition of the drill bit with the pressure sensor as claimed in claim 7, wherein: the positioning threshold module (103) is a normal range value of the deviation angle required when the drill bit works.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635430.0A CN113503152A (en) | 2021-06-08 | 2021-06-08 | Drill bit working condition intelligent control system with pressure sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110635430.0A CN113503152A (en) | 2021-06-08 | 2021-06-08 | Drill bit working condition intelligent control system with pressure sensor |
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| CN113503152A true CN113503152A (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110635430.0A Pending CN113503152A (en) | 2021-06-08 | 2021-06-08 | Drill bit working condition intelligent control system with pressure sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086617A (en) * | 2021-11-11 | 2022-02-25 | 北京城建集团有限责任公司 | Construction method of drainage pipeline |
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| US20050096848A1 (en) * | 2003-10-31 | 2005-05-05 | Xutian Hou | Automatic control system and method for bottom hole pressure in the underbalance drilling |
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| CN110924925A (en) * | 2019-11-28 | 2020-03-27 | 徐州徐工基础工程机械有限公司 | Working condition mode-based lifting force control and monitoring system and method for rotary drilling rig |
| CN110924871A (en) * | 2019-11-27 | 2020-03-27 | 王克行 | Drill bit, drill bit monitoring system and drill bit torque monitoring method |
| CN112612225A (en) * | 2020-12-07 | 2021-04-06 | 武汉速科电气有限公司 | Control system for data acquisition of electrical control cabinet |
-
2021
- 2021-06-08 CN CN202110635430.0A patent/CN113503152A/en active Pending
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| US20050096848A1 (en) * | 2003-10-31 | 2005-05-05 | Xutian Hou | Automatic control system and method for bottom hole pressure in the underbalance drilling |
| CN206334595U (en) * | 2016-12-08 | 2017-07-18 | 无锡职业技术学院 | One kind automation coolant jetting device |
| CN107989549A (en) * | 2017-11-26 | 2018-05-04 | 四川启兴电子有限公司 | A kind of bit operating mode control system |
| CN110924871A (en) * | 2019-11-27 | 2020-03-27 | 王克行 | Drill bit, drill bit monitoring system and drill bit torque monitoring method |
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Application publication date: 20211015 |