CN217354692U - Fracturing pump monitoring devices - Google Patents
Fracturing pump monitoring devices Download PDFInfo
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- CN217354692U CN217354692U CN202220104752.2U CN202220104752U CN217354692U CN 217354692 U CN217354692 U CN 217354692U CN 202220104752 U CN202220104752 U CN 202220104752U CN 217354692 U CN217354692 U CN 217354692U
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- fracturing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The utility model relates to a fracturing pump fault diagnosis technical field especially relates to a fracturing pump monitoring devices. The fracturing pump monitoring device comprises a frequency converter, a data acquisition system and an upper computer system. The frequency converter is suitable for being connected with a motor of the fracturing pump, the frequency converter is suitable for obtaining output torque information of the motor, the data acquisition system is in communication connection with the frequency converter and used for acquiring the output torque information in real time, and the upper computer system is suitable for converting the output torque information into image-text information. The utility model provides a fracturing pump monitoring devices can carry out accurate judgement to the trouble type of fracturing pump, also can carry out trouble early warning simultaneously, can improve fracturing construction safety and equipment management level from this, has shortened the unplanned pump stopping, has examined pump time and fracturing production operating efficiency, can bring good economic benefits for the customer.
Description
Technical Field
The utility model relates to a fracturing pump fault diagnosis technical field especially relates to a fracturing pump monitoring devices.
Background
The fracturing pump is a key device for unconventional oil and gas field exploitation, the performance state and the service life of the fracturing pump seriously affect the fracturing construction efficiency, and the faults occurring in the fracturing pump can be diagnosed in time to ensure reasonable use and realize predictive maintenance, so that the safety production is ensured, the modernized management level of the device is improved, and the production cost is reduced. The field data shows that the main faults of the fracturing pump comprise power end and hydraulic end faults, wherein the power end faults comprise abnormal bearing wear, failure of a transmission gear, failure of a crosshead and the like; the fluid end failure includes: the valve body rubber is punctured, the valve body and the valve seat are punctured, the plunger disc root is punctured, the spring is broken, the valve body is stuck and the like. An effective method for judging whether the fracturing pump works normally on site is an ear listening method and a visual method, but the fracturing pump in operation belongs to a dangerous area and cannot be approached by an operator. The failure can not be solved effectively and timely, and is aggravated continuously, even equipment damage or safety accidents are caused.
With the continuous development and perfection of computer, sensor detection and information technology, the modern fracturing pump detection technology integrating data acquisition, signal processing and fault diagnosis based on the vibration detection technology has great development and application. The technologies mainly measure the vibration signal of equipment through a vibration sensor, and compare a time domain signal or a frequency domain signal with a fault characteristic signal after the vibration signal is acquired and processed at a high speed through a computer, so that the fault type and the position of the fracturing pump are accurately judged, and the aims of shortening the overhaul period and improving the fracturing construction efficiency are fulfilled. However, the hardware cost of the sensor in the detection technology is too high, various faults are simulated by a large amount of experiments to obtain the characteristic frequency or amplitude of the fault, the characteristic frequency and amplitude of the fault under different working conditions (pressure, displacement and installation mode) are possibly different, and the sensor does not have universal adaptability. The technology cannot effectively provide real-time and accurate predictive alarm, is limited by high development cost, long period and low economic benefit, and cannot be popularized and applied on a large scale.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fracturing pump monitoring devices for solve the poor problem of fracturing pump detecting system cost height validity among the prior art, realize fracturing pump running state and judge and the early warning.
The utility model provides a fracturing pump monitoring devices includes:
the frequency converter is suitable for being connected with a motor of the fracturing pump and is suitable for acquiring output torque information of the motor;
the data acquisition system is in communication connection with the frequency converter and is used for acquiring the output torque information in real time;
and the upper computer system is in communication connection with the data acquisition system and is suitable for converting the output torque information into image-text information.
According to the utility model provides a fracturing pump monitoring devices, the converter is a plurality of, data acquisition system includes a plurality of CPU modules, and is a plurality of the converter is with a plurality of CPU module one-to-one to gather respectively a plurality ofly the information of converter.
According to the utility model provides a fracturing pump monitoring devices, data acquisition system includes the data buffer, the data buffer is used for the buffer memory output torque information.
According to the utility model provides a fracturing pump monitoring devices, the converter with data acquisition system passes through ethernet communication connection.
According to the utility model provides a fracturing pump monitoring devices, the converter includes signal emission module, data acquisition system includes signal reception module, signal emission module will output torque information transfer for signal reception module.
According to the utility model provides a fracturing pump monitoring devices, data acquisition system with upper computer system passes through ethernet communication connection.
According to the utility model provides a fracturing pump monitoring devices, host computer system still includes the display, the display is suitable for the demonstration picture and text information.
According to the utility model provides a fracturing pump monitoring devices, host computer system still includes the memory, output torque information is suitable for the storage in the memory.
According to the utility model provides a fracturing pump monitoring devices still includes alarm system, alarm system with the communication of upper computer system is connected.
According to the utility model provides a fracturing pump monitoring devices, alarm system is light alarm system or audible alarm system.
The utility model provides a fracturing pump monitoring devices, motor through with the converter and fracturing pump is connected, thereby can acquire the output torque information of motor, and then can acquire the operating condition and the state trend of fracturing pump, can carry out accurate judgement to the fault type of fracturing pump like this, also can carry out the fault early warning simultaneously, can improve fracturing construction safety and equipment management level from this, the unplanned pump stopping has been shortened, examine pump time and fracturing production operating efficiency, can bring good economic benefits for the customer.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a fracturing pump provided by the present invention;
fig. 2 is a schematic structural diagram of a fracturing pump monitoring device provided by the present invention;
FIG. 3 is an illustration of the principles of fracturing pump fault diagnosis;
reference numerals:
the frac pump monitoring apparatus 100 is shown,
the frequency converter (110) is connected to the power supply,
a data acquisition system 120, a CPU module 121, a data buffer 122,
an upper computer system 130, a display 131, a memory 132, monitoring software 133,
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The fracturing pump monitoring device 100 of the present invention is described below with reference to fig. 1 to 3. It should be noted that the fracturing pump monitoring device 100 is used for detecting the fracturing pump 200, and the fracturing pump 200 includes a power end and a hydraulic end detachably connected to the power end. The power end is connected with a motor 201, and the motor 201 is used for providing driving force for the fracturing pump 200. The motor 201 may include all types of motors 201 such as a permanent magnet synchronous motor 201 and an asynchronous motor 201, and may also be a diesel (gasoline) engine.
For example, as shown in connection with fig. 1, a fracturing pump 200 includes a power end, a fluid end, and a rotating assembly, the power end being powered by a motor 201. The hydraulic end is composed of a plurality of cylinders, each cylinder is internally provided with a suction valve 202 and a discharge valve 203, and the hydraulic end drives a plunger 205 to linearly reciprocate in the cylinder through a rotating assembly 204 to complete the liquid suction and liquid discharge of the fracturing pump 200. During the retraction of the column, the exhaust valve 203 is closed, the pressure in the cylinder is reduced, the suction valve 202 is opened, and the imbibing process is completed; during the plunger extending process, the suction valve 202 is closed, the liquid in the cylinder is compressed, the pressure rises, the discharge valve 203 is opened, and the liquid pressurization and discharge process is completed.
Referring to fig. 1 and 2, the fracturing pump monitoring device 100 includes: frequency converter 110, data acquisition system 120 and upper computer system 130.
Specifically, the frequency converter 110 is adapted to be connected with a motor 201 of the fracturing pump 200, and the frequency converter 110 is adapted to obtain output torque information of the motor 201. The fracturing pump 200 is in different states, the required power of the motor 201 is different, and accordingly, the torque information output by the motor 201 calculated by the frequency converter 110 is different. Thereby, the output torque information of the motor 201 can be acquired by the inverter 110.
The data acquisition system 120 is communicatively connected to the frequency converter 110 for acquiring output torque information in real time. Thus, the output torque information of the motor 201 can be acquired by the output acquisition system. Further, the upper computer system 130 is communicatively connected to the data acquisition system 120, and the upper computer system 130 is adapted to convert the output torque information into the graphic information. The data acquisition system 120 provides the output torque information to the upper computer system 130, and the upper computer system 130 can convert the output torque information into image-text information so as to be conveniently read by an operator.
It should be noted that the operating states of the fracturing pump 200 are different for different output torque information. For example, the operating state of the fracturing pump 200 can be determined by the fluctuation state of the output torque information, and thus the type of failure of the fracturing pump 200 can be determined. Here, it should be further noted that the graphic and text information drawn by the upper computer system 130 may display a variation trend of the output torque information, and different variation trends of the output torque information correspond to different abnormalities of the fracturing pump 200, so that the state of the fracturing pump 200 may be warned according to the variation trend.
For example, a dual plunger pump is exemplified. According to the characteristics of the reciprocating plunger pump, the working pressure of the fracturing pump 200 and the torque of the power end have a linear relation, and under the stable working condition (stable pressure and stable discharge capacity) of the fracturing pump 200, the output torque of the motor 201 of the fracturing pump 200 in a normal state fluctuates up and down in a certain range in a cycle. When the suction valve 202 and the discharge valve 203 are blocked, delayed and leaked, the torque value of the motor 201 is abnormally fluctuated due to the leakage of a hydraulic cylinder or the mechanical collision or abnormal friction of a power end, and stable periodic waveform characteristics appear along with the reciprocating circulation of the fracturing pump 200. Through the typical abnormal waveform, the running state and the fault type of the fracturing pump 200 can be judged, and the fluctuation of the torque amplitude can be judged to reflect the severity of the fault.
In addition, referring to fig. 3, the principle of diagnosing the failure of the frac pump 200 is illustrated, and the diagnosis of the abnormal torque and the problem of the frac pump 200 may be, but is not limited to, the following:
(1) fracturing pump 200 suction valve 202 fails: the failure of the intake valve 202 of the frac pump 200 may include the intake valve 202 valve body, a seat puncture, a spring break, or foreign material in the intake line. In the retracting process of the driving plunger 205, the suction valve 202 is normally opened, the fracturing pump 200 sucks liquid normally, the motor 201 has normal torque, in the extending process of the plunger, the suction valve 202 cannot be completely closed due to the puncture of the suction valve 202 or the breakage of a spring and the like, the liquid in the cylinder is slowly pressurized or cannot be pressurized and compressed, and compared with the normal state, the output torque of the motor 201 is in a descending trend.
(2) Fracturing pump 200 discharge valve 203 fails: the failure of the discharge valve 203 of the fracturing pump 200 includes the valve body of the discharge valve 203, the valve seat prick, and the spring fracture. During the process of driving the plunger 205 to extend, the discharge valve 203 is opened due to the liquid compression, and the torque of the motor 201 is normal; during the retraction of the driving plunger 205, since the discharge valve 203 cannot be closed, the high-pressure side liquid enters the cylinder due to pressure, and pushes the driving plunger 205 to move, and the torque of the motor 201 is in a downward trend compared with the normal state.
(3) Puncturing the hydraulic cylinder: during the extending process of the driving plunger 205, the liquid in the cylinder can not be pressurized or the pressure is suddenly reduced due to the leakage of the liquid cylinder body, and the torque of the motor 201 is reduced compared with the normal state.
(4) And (3) power end failure: the power end faults include transmission gear fracture, abnormal abrasion of a crankshaft, a connecting rod, a driving plunger 205 and a crosshead, sintering and the like, and the torque of the motor 201 tends to increase due to sudden increase of friction resistance or jamming of a mechanical device.
According to the utility model discloses fracturing pump monitoring devices 100, motor 201 through with converter 110 and fracturing pump 200 is connected, thereby can acquire motor 201's output torque information, and then can acquire fracturing pump 200's operating condition and state trend, can carry out accurate judgement to fracturing pump 200's fault type like this, also can carry out the fault early warning simultaneously, from this can improve fracturing construction safety and equipment management level, the unplanned pump stopping has been shortened, examine pump time and fracturing production operating efficiency, can bring good economic benefits for the customer.
To facilitate processing of the data, in some embodiments, the data acquisition system 120 includes a data buffer 122, the data buffer 122 configured to buffer the output torque information. Further, the upper computer system 130 may further include a memory 132, and the output torque information is adapted to be stored in the memory 132. According to some embodiments of the present invention, the frequency converter 110 and the data acquisition system 120, the data acquisition system 120 and the upper computer system 130 can be connected through ethernet communication. Therefore, data transmission is facilitated, and meanwhile real-time transmission and storage of data can be achieved.
According to the utility model discloses a few embodiments in, converter 110 can be a plurality of, and data acquisition system 120 can include a plurality of CPU modules 121, a plurality of converters 110 and a plurality of CPU modules 121 one-to-one to gather a plurality of converters 110's information respectively. In addition, the CPU module 121 is connected to the frequency converter 110 through the ethernet to control the operation of the frequency converter 110, and collects and stores the rotation speed data of the motor 201 through the ethernet in real time. The data acquisition system 120 is connected with all the fracturing pumps 200 through the Ethernet and controls the CPU module 121, monitoring software 133 can be installed in the data acquisition system 120, the monitoring software 133 acquires and stores the torques of the motors 201 of all the fracturing pumps 200 in real time, and the torques of all the fracturing pumps 200 are drawn into readable curve information.
It should be noted here that one set of fracturing pump monitoring device 100 can monitor not only a plurality of fracturing pumps 200 simultaneously, but also a plurality of fracturing pumps 200, and each cylinder can be provided with one frequency converter 110 correspondingly. For example, the number of cylinders of the fracturing pump 200 may be 3 cylinders, 5 cylinders, or others, and the fracturing pump 200 may be a reciprocating plunger pump such as a mud pump. Thereby saving monitoring costs considerably.
According to some embodiments of the present invention, the frequency converter 110 may include a signal transmitting module, and the data acquisition system 120 includes a signal receiving module, and the signal transmitting module transmits the output torque information to the signal receiving module. In this way, the frequency converter 110 and the data acquisition system 120 can perform data transmission in a wireless manner, so that a wire can be omitted, and field installation is facilitated.
Referring to fig. 2, according to some embodiments of the present invention, the upper computer system 130 may further include a display 131, and the display 131 is adapted to display the graphic information. The operator can read the teletext information via the display 131. When there are multiple frequency converters 110, the data information corresponding to the multiple frequency converters 110 can be displayed on the display 131. Each graphic information may be distinguished by a serial number, color, etc. In addition, the curves on the display 131 can be set with different coordinate system ranges, so that the curves are prevented from being overlapped. Under stable condition, operating personnel observes every fracturing pump 200 moment of torsion trend on display 131, and when the moment of torsion abnormal cycle fluctuation appears, and the fluctuation amplitude is the grow trend, and operating personnel can judge that fracturing pump 200 state is unusual, can inform the pump that stops immediately, prevents that the trouble from further aggravating. And the hydraulic end or the power end is judged to have a fault according to the torque change characteristics, and pump detection guidance is provided for maintainers, so that the purposes of shortening the pump detection time and improving the fracturing construction efficiency are achieved.
According to the utility model discloses must some embodiments, fracturing pump monitoring devices 100 still includes alarm system, and alarm system and upper computer system 130 communication are connected. Further, the alarm system is a light alarm system or a sound alarm system.
Automatic fault diagnosis and alarm of the frac pump monitoring apparatus 100 may be achieved in the following manner. The upper computer system 130 firstly detects whether the displacement of the fracturing pump 200 is changed or not in a period (for example, 10s-30s), if the displacement is not changed, the fracturing pump 200 is considered to be in a stable working state, the upper computer system 130 collects the torque of the motor 201 every 1s, and calculates the torque average value T1 in the period. In the next period, the torque collected every 1s is subtracted from the average torque value to obtain the torque difference Δ T. If delta T is larger than nT1(n is 1.5-3 times, and the value of n can be set), if delta T is a positive value, judging that the power end is abnormal; if the delta T is a negative value, the hydraulic end is judged to be abnormal, the fracturing pump monitoring device 100 sends an abnormal prompt alarm and prompts that the fault type is a power end fault or a hydraulic end fault.
It should be noted that, the detection technology using vibration detection is not only high in hardware cost, but also needs complex calculation and a large number of fault simulation tests, which results in a large amount of capital and time cost waste, and the defects that the interference cannot be effectively solved, the fault position cannot be accurately determined, and the like, and most of the detection technologies are in theoretical or experimental stages, and have a long road away from commercial popularization and application. And according to the utility model discloses fracturing pump monitoring devices 100 need not to increase hardware such as expensive sensor, controller, has solved the cost problem of extensive application effectively, has overcome the not enough of conventional detection means, has improved fracturing construction safety and equipment management level, has shortened unplanned pump stop, has examined pump time and fracturing production operating efficiency, can bring good economic benefits for the customer.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A fracturing pump monitoring device, comprising:
the frequency converter is suitable for being connected with a motor of the fracturing pump and is suitable for acquiring output torque information of the motor;
the data acquisition system is in communication connection with the frequency converter and is used for acquiring the output torque information in real time;
and the upper computer system is in communication connection with the data acquisition system and is suitable for converting the output torque information into image-text information.
2. The fracturing pump monitoring device of claim 1, wherein the frequency converter is a plurality of frequency converters, the data acquisition system comprises a plurality of CPU modules, and the plurality of frequency converters are in one-to-one correspondence with the plurality of CPU modules so as to respectively acquire information of the plurality of frequency converters.
3. The fracturing pump monitoring device of claim 1, wherein the data acquisition system comprises a data buffer for buffering the output torque information.
4. The fracturing pump monitoring device of claim 1, wherein the frequency converter is in communication with the data acquisition system via an ethernet network.
5. The fracturing pump monitoring device of claim 1, wherein the frequency converter comprises a signal transmitting module, and the data acquisition system comprises a signal receiving module, and the signal transmitting module transmits the output torque information to the signal receiving module.
6. The fracturing pump monitoring device of claim 1, wherein the data acquisition system is communicatively coupled to the host computer system via an ethernet.
7. The fracturing pump monitoring device of claim 1, wherein the host computer system further comprises a display adapted to display the graphical and textual information.
8. The fracturing pump monitoring device of claim 1, wherein the upper computer system further comprises a memory, the output torque information adapted to be stored in the memory.
9. The fracturing pump monitoring device of claim 1, further comprising an alarm system in communication with the host computer system.
10. The frac pump monitoring device of claim 9, wherein the alarm system is a light alarm system or an audible alarm system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220104752.2U CN217354692U (en) | 2022-01-14 | 2022-01-14 | Fracturing pump monitoring devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220104752.2U CN217354692U (en) | 2022-01-14 | 2022-01-14 | Fracturing pump monitoring devices |
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| Publication Number | Publication Date |
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| CN217354692U true CN217354692U (en) | 2022-09-02 |
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| CN202220104752.2U Active CN217354692U (en) | 2022-01-14 | 2022-01-14 | Fracturing pump monitoring devices |
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| CN (1) | CN217354692U (en) |
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- 2022-01-14 CN CN202220104752.2U patent/CN217354692U/en active Active
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