CN117268604A - Pull rod stress monitoring method, system and storage medium - Google Patents
Pull rod stress monitoring method, system and storage medium Download PDFInfo
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- CN117268604A CN117268604A CN202311303144.XA CN202311303144A CN117268604A CN 117268604 A CN117268604 A CN 117268604A CN 202311303144 A CN202311303144 A CN 202311303144A CN 117268604 A CN117268604 A CN 117268604A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000003860 storage Methods 0.000 title claims abstract description 15
- 230000002159 abnormal effect Effects 0.000 claims abstract description 85
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000011897 real-time detection Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
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- 238000002347 injection Methods 0.000 description 2
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- 239000003086 colorant Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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Abstract
The invention belongs to the field of engineering detection, and discloses a pull rod stress monitoring method, a pull rod stress monitoring system and a storage medium. The pull rod stress monitoring method comprises the following steps: acquiring real-time resistance values of a plurality of pull rods; comparing the magnitude relation among the real-time resistance values, determining an abnormal resistance value in the real-time resistance values, and calibrating a target monitoring pull rod based on the abnormal resistance value; acquiring a historical resistance value set corresponding to the target monitoring pull rod; and determining the running state of the target monitoring pull rod according to the difference relation between the historical resistance value set and the abnormal resistance value. The method comprises the steps of firstly carrying out primary filtering through transverse comparison among the real-time resistance values among the pull rods so as to conveniently screen out the pull rods with abnormal stress, and carrying out longitudinal comparison of historical data of the abnormal pull rods so as to judge whether the abnormal pull rods are in a normal working state or not, thereby realizing real-time detection of the stress of the pull rods.
Description
Technical Field
The invention relates to the technical field of engineering detection, in particular to a pull rod stress monitoring method, a pull rod stress monitoring system and a storage medium.
Background
The fracturing technology is widely applied to oil and gas well production increase and injection increase of a water injection well, and is one of effective measures for improving the recovery ratio of the oil and gas well in the current oil field. The fracturing pump is used as core equipment for fracturing operation, and the reliability of the fracturing pump is crucial. The power end and the hydraulic end of the fracturing pump are connected by a pull rod, and the pull rod bears severe alternating stress in the running process of the fracturing pump, so that cracks and even breaks are easy to generate.
In order to monitor the stress state of the pull rod in real time, sensors for detecting indexes such as stress, temperature, vibration and the like are generally arranged at key positions of the fracturing pump so as to acquire state parameters of the fracturing pump; for example, strain gauges are arranged on the pull rod, and stress data of different positions on the pull rod are collected; however, the whole pull rod can generate cracks at any position, and is limited by the mounting position of the strain gauge, so that the effective monitoring is difficult; meanwhile, when the pull rod is in a process of generating cracks, but before the pull rod is not broken, the pull rod is still in a normal stress state, and the strain gauge cannot measure internal micro stress, so that early warning for the stretch breaking cannot be performed. In summary, it is difficult to accurately measure the stress state of the fracturing pump tie rod in the prior art
Disclosure of Invention
The invention mainly aims to provide a pull rod stress monitoring method, a pull rod stress monitoring system and a storage medium, and aims to solve the problem that the pull rod stress of a fracturing pump is difficult to accurately measure.
In order to achieve the above object, the present invention provides a method for monitoring tension rod stress, for monitoring a plurality of tension rods of a fracturing pump, comprising the steps of:
acquiring real-time resistance values of a plurality of pull rods;
comparing the magnitude relation among the real-time resistance values, determining an abnormal resistance value in the real-time resistance values, and calibrating a target monitoring pull rod based on the abnormal resistance value;
acquiring a historical resistance value set corresponding to the target monitoring pull rod;
and determining the running state of the target monitoring pull rod according to the difference relation between the historical resistance value set and the abnormal resistance value.
Optionally, the comparing the magnitude relation between the real-time resistance values, determining an abnormal resistance value in the real-time resistance values includes:
calculating an average resistance value of the real-time resistance values;
calculating fluctuation difference values between the real-time resistor groups and the average resistor values;
and when the fluctuation difference value is larger than a preset difference value, the corresponding real-time resistance value is the abnormal resistance value.
Optionally, the determining the operation state of the target monitoring pull rod according to the difference relation between the historical resistance value set and the abnormal resistance value includes:
calculating resistance differences between the abnormal resistance values and the resistance values in the historical resistance value set;
determining the one with the largest absolute value of the resistance difference as a reference resistance difference;
when the reference resistance difference value is larger than a first preset threshold value and smaller than a second preset threshold value, determining that the target monitoring pull rod is in a risk state;
and when the reference resistance difference value is larger than a second preset threshold value, determining that the target monitoring pull rod is in an abnormal state, wherein the second threshold value is larger than the first threshold value.
Optionally, the abnormal state includes a crack abnormal state and a fracture abnormal state;
when the reference resistance difference value is larger than a second preset threshold value, determining that the target monitoring pull rod is in an abnormal state comprises the following steps:
when the reference resistance difference value is larger than a second preset threshold value and smaller than a third preset threshold value, determining that the target monitoring pull rod is in a crack abnormal state;
and when the reference resistance difference value is larger than a third preset threshold value, determining that the target monitoring pull rod is in a fracture abnormal state, wherein the third preset threshold value is larger than the second preset threshold value.
Optionally, after determining that the target monitoring pull rod is in the risk state when the reference resistance difference is greater than a first preset threshold and less than a second preset threshold, the method further includes:
and outputting a pull rod replacement prompt message.
Optionally, when the reference resistance difference is greater than a second set threshold, after determining that the target monitoring pull rod is in an abnormal state, the method further includes:
and controlling the fracturing pump to stop immediately and outputting overhaul prompt information.
Optionally, after the acquiring the real-time resistance values of the plurality of pull rods, the method further includes:
and eliminating the target monitoring pull rod corresponding to the abnormal resistance value, and updating the historical resistance value sets of the rest pull rods according to the real-time resistance values.
The invention also provides a system for monitoring the stress of the pull rod, which comprises:
the resistance detection device is used for detecting the resistances of the plurality of pull rods of the fracturing pump;
the display device is used for displaying reminding information; the method comprises the steps of,
and the control device is electrically connected with the resistance detection device and the display device.
Optionally, the device further comprises a storage device, wherein the storage device is used for storing the historical resistance value set.
Optionally, the control device includes a memory, a processor, and a tension rod stress monitoring program stored in the memory, where the processor executes the tension rod stress monitoring program to implement the steps of the tension rod stress monitoring method as described in any one of the above.
The invention also provides a storage medium storing a tension rod stress monitoring program which when executed by a processor implements the steps of the tension rod stress monitoring method as described in any one of the above.
The invention provides a pull rod stress monitoring method, which comprises the steps of firstly, carrying out primary filtration through transverse comparison among real-time resistance values among a plurality of pull rods so as to screen out pull rods with abnormal stress, and carrying out longitudinal comparison on historical data of the abnormal pull rods so as to judge whether the abnormal pull rods are in a normal working state or not, thereby realizing real-time detection of the stress of the pull rods; because the stress on the pull rod can fluctuate to a certain extent along with factors such as temperature, vibration and the like, the external factors can be filtered through transverse comparison, false alarm caused by sudden resistance change caused by environmental factors is avoided, and when an abnormal resistance value with overlarge fluctuation appears in transverse comparison, the corresponding pull rod is indicated to be the resistance fluctuation caused by a non-normal environment, therefore, the stress on the pull rod needs to be compared with the historical resistance value of the pull rod, the internal damage condition is confirmed, and the accurate monitoring of the stress state of the pull rod is realized.
Drawings
FIG. 1 is a schematic diagram of a tension rod stress monitoring system according to an embodiment of the present invention;
FIG. 2 is a block diagram of the tie rod stress monitoring system of FIG. 1;
fig. 3 is a flow chart of a method for monitoring tension rod stress according to an embodiment of the present invention.
Reference numerals illustrate:
| reference numerals | Name of the name | Reference numerals | Name of the name |
| 1 | Resistance detection device | 3 | Control device |
| 2 | Display device | 4 | Storage device |
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1 to 2, the present invention provides a tension rod stress monitoring system, which includes a resistance detecting device 1, a display device 2 and a control device 3; the resistance detection device 1 is used for detecting the resistances of a plurality of pull rods of the fracturing pump; the display device 2 is used for displaying reminding information; the control device 3 is electrically connected with the resistance detection device 1 and the display device 2.
In the system for monitoring the stress of the pull rod provided by the invention, the resistance detection device 1 is used for detecting the resistances of a plurality of pull rods on the fracturing pump, the resistance detection device 1 is connected with the pull rods to form a closed loop, wherein the resistance value is related to the section size of the pull rods, so that whether the pull rods generate faults such as cracks or breaks or not can be judged according to the change of the resistance value.
It should be noted that in this embodiment, the judgment of the abnormal resistance value is performed by the transverse comparison of the pull rods, so that the threshold value is not required to be preset, and the pull rod stress monitoring system can be self-adaptive and can be directly adapted in different pull rod monitoring systems.
Further, the device further comprises a storage device 4, wherein the storage device 4 is used for storing the historical resistance value set. In this embodiment, the storage device 4 is used to store related data, so that the control device 3 can conveniently mobilize the data from the storage device 4; for example, in this embodiment, the storage device 4 stores a set of historical resistance values, so that the control device 3 compares the real-time resistance detected by the resistance detection device 1 with the set of historical resistance values to determine the stress change state of the pull rod.
Further, in an embodiment of the present invention, the control device 4 includes a memory, a processor, and a tension rod stress monitoring program stored on the memory, and the processor executes the tension rod stress monitoring control program to implement the following tension rod stress monitoring control method:
acquiring real-time resistance values of a plurality of pull rods;
comparing the magnitude relation among the real-time resistance values, determining an abnormal resistance value in the real-time resistance values, and calibrating a target monitoring pull rod based on the abnormal resistance value;
acquiring a historical resistance value set corresponding to the target monitoring pull rod;
and determining the running state of the target monitoring pull rod according to the difference relation between the historical resistance value set and the abnormal resistance value.
Optionally, the comparing the magnitude relation between the real-time resistance values, determining an abnormal resistance value in the real-time resistance values includes:
calculating an average resistance value of the real-time resistance values;
calculating fluctuation difference values between the real-time resistor groups and the average resistor values;
and when the fluctuation difference value is larger than a preset difference value, the corresponding real-time resistance value is the abnormal resistance value.
Optionally, the determining the operation state of the target monitoring pull rod according to the difference relation between the historical resistance value set and the abnormal resistance value includes:
calculating resistance differences between the abnormal resistance values and the resistance values in the historical resistance value set;
determining the one with the largest absolute value of the resistance difference as a reference resistance difference;
when the reference resistance difference value is larger than a first preset threshold value and smaller than a second preset threshold value, determining that the target monitoring pull rod is in a risk state;
and when the reference resistance difference value is larger than a second preset threshold value, determining that the target monitoring pull rod is in an abnormal state, wherein the second threshold value is larger than the first threshold value.
Optionally, the abnormal state includes a crack abnormal state and a fracture abnormal state;
when the reference resistance difference value is larger than a second preset threshold value, determining that the target monitoring pull rod is in an abnormal state comprises the following steps:
when the reference resistance difference value is larger than a second preset threshold value and smaller than a third preset threshold value, determining that the target monitoring pull rod is in a crack abnormal state;
and when the reference resistance difference value is larger than a third preset threshold value, determining that the target monitoring pull rod is in a fracture abnormal state, wherein the third preset threshold value is larger than the second preset threshold value.
Optionally, after determining that the target monitoring pull rod is in the risk state when the reference resistance difference is greater than a first preset threshold and less than a second preset threshold, the method further includes:
and outputting a pull rod replacement prompt message.
Optionally, when the reference resistance difference is greater than a second set threshold, after determining that the target monitoring pull rod is in an abnormal state, the method further includes:
and controlling the fracturing pump to stop immediately and outputting overhaul prompt information.
Optionally, after the acquiring the real-time resistance values of the plurality of pull rods, the method further includes:
and eliminating the target monitoring pull rod corresponding to the abnormal resistance value, and updating the historical resistance value sets of the rest pull rods according to the real-time resistance values.
Referring to fig. 3, the invention further provides a method for monitoring the stress of a pull rod, which comprises the following steps:
s10, acquiring real-time resistance values of a plurality of pull rods;
the real-time resistance values of the pull rods are obtained in real time, so that real-time monitoring of the pull rods is realized.
S20, comparing magnitude relations among the real-time resistance values, determining abnormal resistance values in the real-time resistance values, and calibrating a target monitoring pull rod based on the abnormal resistance values;
after the real-time resistances of the plurality of pull rods are obtained, judging whether abnormal data exist in the real-time resistances through transverse comparison among the plurality of pull rods, wherein the size distribution of the resistance groups of the plurality of pull rods is similar because the working environments of the plurality of pull rods are similar, and determining whether the abnormal resistance values exist according to the mutual comparison among the plurality of real-time resistances; when the abnormal resistance value exists, the condition that abnormal stress exists in the plurality of pull rods can be described, and at the moment, the pull rods are monitored.
S30, acquiring a historical resistance value set corresponding to the target monitoring pull rod;
and acquiring a corresponding historical resistance value set of the target monitoring pull rod so as to facilitate longitudinal data comparison of the target monitoring pull rod.
S40, determining the running state of the target monitoring pull rod according to the difference relation between the historical resistance value set and the abnormal resistance value.
And judging whether the resistance value of the railing fluctuates in a normal range according to the difference between the real-time resistance value and the historical resistance value set of the target monitoring pull rod, and further judging whether the stress of the target monitoring pull rod is normal.
In the pull rod stress monitoring method provided by the invention, the transverse comparison among the real-time resistance values among a plurality of pull rods is firstly used for carrying out primary filtration so as to conveniently screen out the pull rod with abnormal stress, and the abnormal pull rod is subjected to longitudinal comparison of historical data of the pull rod so as to judge whether the pull rod is in a normal working state or not, so that the real-time detection of the stress of the pull rod is realized; because the stress on the pull rod can fluctuate to a certain extent along with factors such as temperature, vibration and the like, the external factors can be filtered through transverse comparison, false alarm caused by sudden resistance change caused by environmental factors is avoided, and when an abnormal resistance value with overlarge fluctuation appears in transverse comparison, the corresponding pull rod is indicated to be the resistance fluctuation caused by a non-normal environment, therefore, the stress on the pull rod needs to be compared with the historical resistance value of the pull rod, the internal damage condition is confirmed, and the accurate monitoring of the stress state of the pull rod is realized.
It should be noted that, in the present embodiment, the step S20 includes:
s21, calculating average resistance values of the real-time resistance values;
s22, calculating fluctuation difference values between the real-time resistance values and the average resistance value;
s23, when the fluctuation difference value is larger than a preset difference value, the corresponding real-time resistance value is the abnormal resistance value.
In this embodiment, in the same fracturing pump, the materials, diameters and working environments of the plurality of pull rods used may be the same, so the resistance values of the plurality of pull rods should be similar, and there may be very small differences and fluctuations in measurement, but they should be stabilized synchronously near a value, so normal working intervals of the plurality of real-time resistance values may be obtained by means of an average value, and further, when the difference between a certain fluctuation difference and the average resistance value is too large, it may be determined whether there is an abnormality in the real-time resistance values.
Further, when the average resistance value is calculated, the extreme value in the data can be eliminated, so that the interference of the abnormal resistance value can be avoided.
In this embodiment, when the fluctuation difference between the real-time resistance and the average resistance is too large, it indicates that the real-time resistance of the pull rod needs to be determined.
It should be noted that, the preset difference value needs to be adjusted according to the actual situation of the pull rod, and when the factors such as the material and the diameter of the pull rod are different, the normal fluctuation range of the resistance on the pull rod is also different, so the preset difference value needs to be adjusted according to different pull rod conditions, and the method is not limited specifically.
On the other hand, step S40 includes:
s41, calculating resistance difference values between the abnormal resistance value and each resistance value in each historical resistance value set;
s42, determining the one with the largest absolute value of the resistance difference as a reference resistance difference;
s43, when the reference resistance difference value is larger than a first preset threshold value and smaller than a second preset threshold value, determining that the target monitoring pull rod is in a risk state;
after the reference resistance difference value is greater than a first preset threshold value and less than the second threshold value, it is indicated that the resistance value on the pull rod at this time has exceeded a normal interval, the stress on the pull rod is also in an abnormal state, and the pull rod may have a tendency of generating micro cracks or has a structural change, and attention needs to be paid to further maintenance.
The first preset threshold value is 20% of the average resistance value of the historical resistance value set; the second preset threshold is 40% of the average resistance value of the historical resistance value set.
And S44, when the reference resistance difference value is larger than a second preset threshold value, determining that the target monitoring pull rod is in an abnormal state, wherein the second threshold value is larger than the first threshold value.
When the resistance difference value on the pull rod exceeds the second preset threshold value, the structure in the pull rod is changed greatly, cracks are generated or a plurality of cracks are generated, and therefore the abnormality can be determined and occurred.
In this embodiment, under a normal working condition, the resistance value of the target monitoring pull rod should fluctuate within a certain range, so that the resistance difference between the abnormal resistance value and the historical resistance value should also be kept within a certain fluctuation range, a historical resistance value set corresponding to the target monitoring pull rod is obtained, the historical resistance value set with the largest absolute value of the difference value is obtained as the reference resistance difference value, and the abnormal state of the pull rod is judged according to the magnitude of the reference resistance difference value.
Further, the target abnormal state includes a crack abnormal state and a fracture abnormal state; step S44 includes:
s441, when the reference resistance difference value is larger than a second preset threshold value and smaller than a third preset threshold value, determining that the target monitoring pull rod is in a crack abnormal state;
when the reference resistance value is between a second preset threshold value and a third preset threshold value, the resistance on the pull rod is obviously abnormal, and the fact that a crack or a crack is generated on the pull rod can be judged.
S442, when the reference resistance difference value is larger than a third preset threshold value, determining that the target monitoring pull rod is in a fracture abnormal state, wherein the third preset threshold value is larger than the second preset threshold value.
When the reference resistance difference value is larger than a third preset threshold value, the pull rod is broken, the resistance value of the pull rod is changed drastically, for example, the two ends lose contact due to complete disconnection, the resistance measurement loop is disconnected and cannot be measured, and the data is zeroed; or only partially bonded after the fracture, resulting in a very high resistance, and therefore, can be considered to be broken once the third preset threshold is exceeded.
In the setting of the second preset threshold and the third preset threshold, the setting is also required to be preset according to the actual acting material, the diameter and the like of the pull rod, which is not particularly limited herein.
In addition, after step S43, the method further includes:
and outputting a pull rod replacement prompt message.
In this embodiment, after judging that the pull rod is in the risk state, the fracturing pump may continue to work because the actual situation such as crack fracture is not generated yet, and only the operation such as maintenance and replacement is required to be performed on the pull rod by prompting an operator, and replacement and maintenance are performed after the fracturing work is completed.
Similarly, after step S44, the method further includes:
and controlling the fracturing pump to stop immediately and outputting overhaul prompt information.
In this embodiment, once it is determined that the pull rod is in the target abnormal state, a crack or a fracture must be generated on the pull rod at this time, and a danger may be generated when the pull rod continues to operate, so that the fracturing pump is controlled to stop immediately, and a maintenance prompt message is output.
It should be noted that, the replacement prompt information and the maintenance prompt information have various display modes, for example, an electronic screen is adopted to directly display the position of the corresponding pull rod and the type of the abnormal state; or warning lamps with different colors are adopted for prompting.
On the other hand, after step S10, further includes:
and S101, if the target monitoring pull rod corresponding to the abnormal resistance value is eliminated, updating the historical resistance value sets of the rest pull rods according to the real-time resistance values.
Through the mode of real-time detection and real-time update, the operation detection of the pull rod can be more accurate, and data for comparison can be generated by self-operation without manually adding the data.
In the method for monitoring the stress of the pull rod, various modes are available for acquiring the real-time resistance value, and one resistance value can be acquired as the real-time resistance value every other time period; the real-time resistance of a time period can be obtained by carrying out average operation or frequency operation on all resistance values in the time period; the real-time resistance value is obtained and adjusted by an operator according to actual conditions, and is not particularly limited herein.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (10)
1. A method of monitoring tension rod stress for monitoring a plurality of tension rods of a fracturing pump, comprising the steps of:
acquiring real-time resistance values of a plurality of pull rods;
comparing the magnitude relation among the real-time resistance values, determining an abnormal resistance value in the real-time resistance values, and calibrating a target monitoring pull rod based on the abnormal resistance value;
acquiring a historical resistance value set corresponding to the target monitoring pull rod;
and determining the running state of the target monitoring pull rod according to the difference relation between the historical resistance value set and the abnormal resistance value.
2. The method of claim 1, wherein comparing magnitude relationships between the plurality of real-time resistance values to determine an abnormal resistance value of the plurality of real-time resistance values comprises:
calculating an average resistance value of the real-time resistance values;
calculating fluctuation difference values between the real-time resistor groups and the average resistor values;
and when the fluctuation difference value is larger than a preset difference value, the corresponding real-time resistance value is the abnormal resistance value.
3. The method of claim 1, wherein determining the operational status of the target monitoring tie based on the differential relationship between the historical resistance value set and the abnormal resistance value comprises:
calculating resistance differences between the abnormal resistance values and the resistance values in the historical resistance value set;
determining the one with the largest absolute value of the resistance difference as a reference resistance difference;
when the reference resistance difference value is larger than a first preset threshold value and smaller than a second preset threshold value, determining that the target monitoring pull rod is in a risk state;
and when the reference resistance difference value is larger than a second preset threshold value, determining that the target monitoring pull rod is in an abnormal state, wherein the second threshold value is larger than the first threshold value.
4. The tie rod stress monitoring method of claim 3, wherein the abnormal conditions include a crack abnormal condition and a fracture abnormal condition;
when the reference resistance difference value is larger than a second preset threshold value, determining that the target monitoring pull rod is in an abnormal state comprises the following steps:
when the reference resistance difference value is larger than a second preset threshold value and smaller than a third preset threshold value, determining that the target monitoring pull rod is in a crack abnormal state;
and when the reference resistance difference value is larger than a third preset threshold value, determining that the target monitoring pull rod is in a fracture abnormal state, wherein the third preset threshold value is larger than the second preset threshold value.
5. The tie bar stress monitoring method of claim 3, wherein after determining that the target monitoring tie bar is in a risk state when the reference resistance difference is greater than a first preset threshold and less than a second preset threshold, further comprising:
and outputting a pull rod replacement prompt message.
6. The method of claim 3, wherein after determining that the target monitoring tie is in an abnormal state when the reference resistance difference is greater than a second set threshold, further comprising:
and controlling the fracturing pump to stop immediately and outputting overhaul prompt information.
7. The method of claim 1, further comprising, after the obtaining the real-time resistance values of the plurality of tie rods:
and eliminating the target monitoring pull rod corresponding to the abnormal resistance value, and updating the historical resistance value sets of the rest pull rods according to the real-time resistance values.
8. A tie rod stress monitoring system, comprising:
the resistance detection device is used for detecting the resistances of the plurality of pull rods of the fracturing pump;
the display device is used for displaying reminding information; the method comprises the steps of,
and the control device is electrically connected with the resistance detection device and the display device.
9. The tie bar stress monitoring system of claim 8, wherein the control device includes a memory, a processor, and a tie bar stress monitoring program stored in the memory, the processor executing the tie bar stress monitoring program to implement the steps of the tie bar stress monitoring method of any of claims 1-7.
10. A storage medium storing a tension rod stress monitoring program which, when executed by a processor, implements the steps of the tension rod stress monitoring method of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311303144.XA CN117268604A (en) | 2023-10-09 | 2023-10-09 | Pull rod stress monitoring method, system and storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311303144.XA CN117268604A (en) | 2023-10-09 | 2023-10-09 | Pull rod stress monitoring method, system and storage medium |
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| Publication Number | Publication Date |
|---|---|
| CN117268604A true CN117268604A (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311303144.XA Pending CN117268604A (en) | 2023-10-09 | 2023-10-09 | Pull rod stress monitoring method, system and storage medium |
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2023
- 2023-10-09 CN CN202311303144.XA patent/CN117268604A/en active Pending
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