CN213392611U - System for diagnosing pump valve fault of drilling pump according to sound change - Google Patents
System for diagnosing pump valve fault of drilling pump according to sound change Download PDFInfo
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- CN213392611U CN213392611U CN202022496513.XU CN202022496513U CN213392611U CN 213392611 U CN213392611 U CN 213392611U CN 202022496513 U CN202022496513 U CN 202022496513U CN 213392611 U CN213392611 U CN 213392611U
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Abstract
The utility model discloses a according to sound change diagnosis drilling pump valve fault system, including sound transducer, calculating equipment, display device, equipment failure alarm equipment, sound transducer is used for gathering suction pump valve and discharge pump valve sound signal in every hydraulic cylinder of drilling pump, and calculating equipment is used for calculating the sound change of every hydraulic cylinder suction pump valve and discharge pump valve, judges whether the drilling pump suction pump valve or discharge pump valve takes place to damage, and display device demonstrates the accurate position that sound changes, and equipment failure alarm equipment reports to the police to pump valve trouble having appeared. The utility model provides a according to sound change diagnosis drilling pump valve fault system can not only the pump valve running state in the real time monitoring drilling pump, overhauls the warning to the pump valve according to pump valve fault state, has improved the security of monitoring personnel in monitoring pump valve operation process moreover.
Description
Technical Field
The utility model relates to a petroleum engineering equipment field, concretely relates to according to sound change diagnosis drilling pump valve fault system.
Background
With the increasing drilling parameters of oil fields and the increasing requirements on the working performance of drilling pumps, the drilling pumps are developing towards the directions of high power, large displacement and high pumping pressure (two large parts and one high part for short), the service life of wearing parts is shortened for the drilling pumps, particularly the service life of wearing parts of pump valves is greatly shortened, the frequency of replacing the pump valves is undoubtedly increased, and the replacement of the pump valves is a very difficult task in the maintenance work of the drilling pumps; in order to meet the requirement of 'two big and one high' of the drilling pump, the number of cylinders of the drilling pump is changed from three cylinders to five cylinders, each cylinder is provided with a suction pump valve and a discharge pump valve, and the more the number of the hydraulic cylinders is, the more the number of the pump valves is, the more the frequency of replacing the pump valves is increased. In the past, whether a pump valve needs to be replaced is judged by means of close-range observation of workers and a drilling pump, the judgment skill requirement of the workers is high, more importantly, the workers and the high-pressure drilling pump are in close-range observation, personal safety risks of the workers are increased, if the experience of the workers in judging whether the pump valve is damaged in the operating state of the drilling pump is insufficient, the drilling pump is only stopped, all hydraulic cylinder pump valves are disassembled for inspection, and the workers often replace the pump valves with new pump valves when the workers disassemble and inspect the pump valves in order to reduce workload, so that the labor intensity and labor time of the workers are greatly increased, the consumption number of the pump valves is increased, and the operating cost of drilling is increased, and therefore, an automatic diagnosis system for the drilling pump valves is urgently needed.
Disclosure of Invention
In order to can remote diagnosis which suction pump valve or the discharge pump valve of a kind of bore hole pump cylinder has damaged, the utility model provides a according to sound change diagnosis bore hole pump valve fault system, only need unpack apart the pump valve of diagnosing the damage alright, the pump valve that does not have the damage need not to examine, avoids that kind of original in order to reduce work load of workman, when taking apart the inspection pump valve, will also can continue the pump valve of using and change into new pump valve.
The system for diagnosing the fault of the pump valve of the drilling pump according to the sound change is characterized by comprising a sound sensor, computing equipment, display equipment and equipment fault alarm equipment;
the sound sensor is respectively arranged at the nearest distance of the suction pump valve and the discharge pump valve of each hydraulic cylinder;
the calculation device receives signals of sound sensors of the suction pump valve and the discharge pump valve of each hydraulic cylinder, calculates sound changes of the suction pump valve and the discharge pump valve of each hydraulic cylinder, and can determine an initial value on site under each working condition of the drilling pump.
The display device is a PC display or an HMI touch screen and displays the specific sound change positions of each hydraulic cylinder suction pump valve and each hydraulic cylinder discharge pump valve calculated by the calculation device.
And the equipment fault alarm equipment performs sound alarm according to the abnormal condition judged by the computing equipment.
The utility model has the effects of can not only real time monitoring the pump valve running state in the drilling pump, overhaul the warning to the pump valve according to pump valve fault state, improve the security of monitoring personnel in the monitoring pump valve operation process moreover.
Drawings
FIG. 1 is a schematic diagram of the operation of a borehole pump.
FIG. 2 is a schematic diagram of a system for diagnosing a borehole pump valve failure based on sound changes.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description.
The embodiments of the present invention are not limited to the following embodiments, and various changes made without departing from the spirit and scope of the present invention are within the scope of the present invention.
Referring to fig. 1, the borehole pump is driven by external power to rotate a crankshaft, and then the rotation of the crankshaft is converted into the reciprocating motion of a piston through a connecting rod and a crosshead, and the main working mechanisms of the borehole pump are a reciprocating piston, an automatically opening and closing suction pump valve and an automatically opening and closing discharge pump valve. The space between the piston, the slurry acting surface, the suction pump valve and the discharge pump valve is called a hydraulic cylinder. The starting point and the end point of the piston are called dead points of the piston motion, the dead point far away from the crankshaft is a front dead point, the front dead point corresponds to the rotation angle of the crankshaft and is 0 degree, the dead point near the crankshaft is a rear dead point, and the rear dead point corresponds to the rotation angle of the crankshaft and is 180 degrees. One drilling pump only has one crankshaft, but a plurality of hydraulic cylinders are provided, the number of the common hydraulic cylinders is 3 and 5, the common hydraulic cylinders are respectively called as a three-cylinder drilling pump and a five-cylinder drilling pump, and each hydraulic cylinder is provided with a suction pump valve and a discharge pump valve.
The drilling pump achieves the purpose of conveying mud by means of the periodic change of the volume in the hydraulic cylinder, when the crank angle is 0 degrees, the piston runs to a front dead center, when the crank angle is 180 degrees, the piston runs to a rear dead center, in the process, the pressure in the hydraulic cylinder is lower than the pressure outside the suction pump valve, the suction pump valve is opened, the discharge pump valve is closed, mud enters the hydraulic cylinder from the suction pump valve, when the crank shaft rotates to 180 degrees, namely the piston moves to the rear dead center, the mud occupies the space of the hydraulic cylinder, and the process is the mud suction process of the drilling pump. In the suction process, the discharge pump valve is closed, if the discharge pump valve is intact, no mud passes through the sealing surface of the discharge pump valve, namely, no sound of mud flowing through the sealing surface of the discharge pump valve exists, the sound at the discharge pump valve collected by the sound sensor is used as the sound standard of the intact discharge pump valve, if the discharge pump valve is damaged, the sealing surface of the discharge pump valve cannot be completely sealed, high-pressure mud on the discharge pump valve flows back into the liquid cylinder from the damaged friction surface gap of the discharge pump valve, a sound of high-pressure mud flowing through the sealing part of the discharge pump valve is generated, and the sound collected by the sound sensor is different from the sound standard of the intact discharge pump valve.
Similarly, when the crank angle is rotated from 180 ° to 360 ° (also 0 ° for the next cycle), i.e., the piston is moved from the rear dead center to the front dead center, the suction pump valve is closed, the discharge pump valve is opened, and the mud is discharged from the discharge pump valve to the cylinder, which is the mud discharge process of the drill pump. In the discharging process, the suction pump valve is closed, if the suction pump valve is intact, no mud passes through the sealing surface of the suction pump valve, namely no sound of mud flowing out of the sealing surface of the suction pump valve to the suction pipe is generated, at the moment, the sound collected by the sound sensor at the position of the suction pump valve is used as the sound standard of the intact suction pump valve, if the suction pump valve is damaged, the sealing surface of the suction pump valve cannot be completely sealed, high-pressure mud in the hydraulic cylinder flows out of the suction pipe outside the hydraulic cylinder from the gap of the damaged friction surface of the suction pump valve, sound of the high-pressure mud flowing through the sealing position of the suction pump valve is generated, and the sound collected by the sound sensor is different from the sound standard of the intact suction pump valve.
Referring to fig. 2, the system for diagnosing the fault of the pump valve of the drilling pump according to the sound change comprises a sound sensor, a computing device, a display device and a device fault alarm device.
In the system, the sound sensors are respectively arranged at the suction pump valve and the discharge pump valve of each hydraulic cylinder, namely 6 sound sensors are arranged on 3 hydraulic cylinders, 10 sound sensors are arranged on 5 hydraulic cylinders, and sound signals of the suction pump valve and the discharge pump valve of each hydraulic cylinder are transmitted to the computing equipment.
In the system, the computing equipment receives signals of sound sensors of the suction pump valve and the discharge pump valve of each hydraulic cylinder, calculates the relative change of sound of the suction pump valve and the discharge pump valve of each hydraulic cylinder, can determine an initial value with normal sound on the spot under each working condition of the drilling pump, and judges that the suction pump valve or the discharge pump valve of the hydraulic cylinder is abnormal through sound change;
the display device of the system is a PC display or an HMI touch screen and displays the change positions of the sound of each hydraulic cylinder suction pump valve and each hydraulic cylinder discharge pump valve calculated by the calculation device.
And the equipment fault alarm equipment performs sound alarm according to the abnormal condition judged by the computing equipment.
The system can diagnose which hydraulic cylinder suction pump valve or discharge pump valve of the drilling pump is damaged according to sound change remotely, workers only need to disassemble the pump valve diagnosed as damaged, the pump valve without damage does not need to be inspected, and the problem that the original pump valve which can be continuously used is replaced by a new pump valve when the pump valve is disassembled and inspected by the workers is avoided.
The system can monitor the running state of the pump valve in the drilling pump in real time, overhaul and alarm the pump valve according to the fault state of the pump valve, and improve the safety of monitoring personnel in the running process of the pump valve.
The above detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge range of those skilled in the art, and all these changes belong to the protection of the present invention, and also belong to the protection scope of the present invention.
Claims (5)
1. A system for diagnosing the fault of a pump valve of a drilling pump according to sound change is characterized by comprising a sound sensor, a computing device, a display device and a device fault alarm device;
the sound sensor is used for acquiring sound signals of a suction pump valve and a discharge pump valve in each hydraulic cylinder of the drilling pump;
the computing equipment is used for computing the change relation of the sound signal of each hydraulic cylinder and judging whether the suction pump valve or the discharge pump valve of the drilling pump is damaged or not;
the display device displays the exact position of the sound change;
the equipment fault alarm equipment alarms the pump valve fault of the drilling pump.
2. The system for diagnosing a malfunction of a pump valve of a drill pump based on a change in sound according to claim 1, wherein the sound sensor is installed one at a closest distance from each of the suction pump valve and the discharge pump valve of each cylinder.
3. The system of claim 1, wherein the computing device receives signals from the acoustic sensor for each of the hydraulic cylinder intake pump valve and the discharge pump valve, computes acoustic changes for each of the hydraulic cylinder intake pump valve and the discharge pump valve, and wherein the computing device determines an initial value in situ for each of the drilling pump operating conditions.
4. The system for diagnosing borehole pump valve failure based on acoustic changes as recited in claim 1, wherein the display device is a PC display or HMI touch screen that displays the specific locations of acoustic changes for each cylinder intake pump valve and discharge pump valve calculated by the computing device.
5. The system for diagnosing a malfunction of a pump valve of a drill pump based on acoustic changes of claim 1, wherein the device malfunction alerting device alerts acoustically based on the abnormal condition determined by the computing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496513.XU CN213392611U (en) | 2020-11-03 | 2020-11-03 | System for diagnosing pump valve fault of drilling pump according to sound change |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022496513.XU CN213392611U (en) | 2020-11-03 | 2020-11-03 | System for diagnosing pump valve fault of drilling pump according to sound change |
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| CN213392611U true CN213392611U (en) | 2021-06-08 |
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| CN202022496513.XU Active CN213392611U (en) | 2020-11-03 | 2020-11-03 | System for diagnosing pump valve fault of drilling pump according to sound change |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682167A (en) * | 2022-04-11 | 2022-07-01 | 东营派克赛斯石油装备有限公司 | Naphtha reforming device for petroleum product processing |
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2020
- 2020-11-03 CN CN202022496513.XU patent/CN213392611U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682167A (en) * | 2022-04-11 | 2022-07-01 | 东营派克赛斯石油装备有限公司 | Naphtha reforming device for petroleum product processing |
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