CN113236552B - A plunger structure, a fracturing pump and a method for monitoring the working temperature of the plunger structure - Google Patents
A plunger structure, a fracturing pump and a method for monitoring the working temperature of the plunger structure Download PDFInfo
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- CN113236552B CN113236552B CN202110561080.8A CN202110561080A CN113236552B CN 113236552 B CN113236552 B CN 113236552B CN 202110561080 A CN202110561080 A CN 202110561080A CN 113236552 B CN113236552 B CN 113236552B
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- plunger
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- temperature sensor
- plunger structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides a plunger structure, a fracturing pump and a working temperature monitoring method of the plunger structure, wherein the plunger structure comprises a plunger body and a temperature sensor, the plunger body department is equipped with first recess and second recess, the notch of first recess is located the lateral wall department of second recess, temperature sensor set up in the first recess. The invention has the beneficial effects that the influence on the normal operation of the fracturing pump is reduced under the condition that the temperature of the plunger can be detected.
Description
Technical Field
The invention relates to the technical field of petroleum equipment, in particular to a plunger structure, a fracturing pump and a working temperature monitoring method of the plunger structure.
Background
In oil and gas fracturing operations, the fracturing pump is typically under high pressure, high strength operating conditions. The plunger is a key structure of a hydraulic end of the fracturing pump, is easy to damage, can generate higher temperature on the surface of the plunger due to long-term friction during operation, and can cause safety accidents during the fracturing operation if the plunger is too high in temperature to take measures in time during operation.
In the related art, the temperature sensor is arranged to be fixedly connected with the outer wall of the plunger, so that the outer wall of the plunger is measured in temperature, but the arrangement mode of the temperature sensor generally changes the outer structure of the plunger and the hydraulic end structure of the fracturing pump, so that the normal operation of the fracturing pump is influenced.
Disclosure of Invention
The invention solves the problem of how to reduce the influence on the normal operation of the fracturing pump under the condition that the temperature of the plunger can be detected.
In order to solve the problems, the invention provides a plunger structure, which comprises a plunger body and a temperature sensor, wherein a first groove and a second groove are arranged at the plunger body, the notch of the first groove is positioned at the side wall of the second groove, and the temperature sensor is arranged in the first groove.
According to the plunger structure in the technical scheme, the first groove for installing the temperature sensor is formed in the plunger body, so that the influence of external structure change on the running state of the plunger structure and the influence on the working running of the fracturing pump can be reduced relative to the fixed support and the like for connecting the temperature sensor to the outer surface of the plunger body and setting the fixed temperature sensor. In addition, due to the fact that the first groove and the second groove which are communicated are formed, and the temperature sensor is arranged at the first groove in the plunger body, the concealment of the installation position of the temperature sensor can be improved, and meanwhile, the temperature sensor can be prevented from being influenced by misoperation of field constructors, so that the temperature measuring function is lost, and the like, compared with the mode that the temperature sensor is connected to the outer surface of the plunger body, the temperature sensor is fixed to the outer surface of the plunger body.
Further, the plunger structure further comprises a limiting structure, the limiting structure is detachably arranged at the first groove, and the limiting structure is suitable for being abutted to the temperature sensor.
The plunger structure in this technical scheme includes limit structure, and limit structure can install in first recess department to support to hold spacing to temperature sensor's mounted position, in order to ensure temperature sensor's stability of installation.
Further, the limit structure is suitable for moving towards a direction approaching to or away from the bottom of the first groove.
According to the plunger structure, when the limiting structure is installed at the first groove, the limiting structure can move at the first groove, so that the detection distance of the temperature sensor can be adjusted, the accuracy in temperature detection can be further ensured, and the temperature sensor can be conveniently dismounted.
Further, a first thread structure is arranged on the periphery of the limiting structure, and a second thread structure matched with the first thread structure is arranged on the inner wall of the first groove.
Further, the axis of the first groove is perpendicular to the axis of the second groove, or the axis of the first groove is inclined relative to the axis of the second groove, wherein the direction of inclination is a direction away from the notch of the second groove.
According to the plunger structure in the technical scheme, the axis of the first groove is perpendicular to the axis of the second groove, namely, the first groove is perpendicular to the second groove, so that the limit structure is convenient to install at the first groove, in addition, the axis of the first groove is inclined relative to the axis of the second groove, the inclined direction is far away from the direction of the notch of the second groove, and the plunger structure is particularly characterized in that when the second groove is horizontally arranged, the first groove can be inclined left relative to the horizontal direction, so that the sensor is convenient to plug into the first groove from the second groove, and the sensor is convenient to install and fix.
Further, a minimum distance between a groove bottom of the first groove and an outer wall of the plunger body is greater than or equal to 4mm and less than or equal to 12mm.
Further, the center line of the second groove coincides with the center line of the plunger body, the plunger structure further comprises a supporting structure, the supporting structure is detachably arranged in the second groove, and the supporting structure is suitable for being abutted with the inner wall of the second groove.
According to the plunger structure in the technical scheme, the center line of the second groove coincides with the center line of the plunger body, therefore, the slotting mode of the second groove is slotting of the middle part of the side face of the plunger body towards the periphery, so that the influence of the second groove on the structural strength of the plunger body is reduced as much as possible, in addition, the plunger structure further comprises a supporting structure, after the temperature sensor is installed, the supporting structure can be arranged in the second groove, the supporting structure can be abutted to the inner wall of the second groove, the second groove is supported, and then the plunger body is structurally supported, so that the structural strength of the plunger structure is improved, and the service life of the plunger structure is prolonged.
Further, the bearing structure include the connecting block with encircle set up in a plurality of scalable landing legs of connecting block periphery, the inner wall department of second recess is equipped with a plurality of spouts, the spout include along plunger body length direction extension's first channel and follow plunger body circumference extension's second channel, first channel with second channel intercommunication, scalable landing leg is suitable for first channel with slide in the second channel, works as scalable landing leg slides to the second channel keep away from in the one end of first channel, scalable landing leg is in the shrink state, just scalable landing leg with the tank bottom butt of second channel.
According to the plunger structure in the technical scheme, the telescopic supporting leg can slide to the bottom of the second groove or the direction of the notch based on each first channel, and can change to slide at the second channel when the first channel slides to the communication position between the second channel and the first channel, because the second channel extends circumferentially relative to the plunger body, the supporting structure can rotate in the second groove at the moment, when the telescopic support leg rotates to one end of the second channel far away from the first channel, the telescopic support leg is in a contracted state, and the telescopic support leg in the contracted state is abutted with the bottom of the second channel, so that the inner wall of the second groove is abutted and supported, and further the plunger body is supported after being grooved, and the structural strength of the plunger body is improved. Because bearing structure's flexible landing leg slides to the second channel along first channel to this flexible landing leg can be by the lateral wall butt of second channel at the length direction of plunger body, thereby when plunger structure activity, can avoid bearing structure's deviate from, with this structural stability who improves plunger structure.
The invention also provides a fracturing pump which comprises the plunger structure.
Further, the fracturing pump further comprises a signal receiving device and a temperature display device which is in communication connection with the signal receiving device, and the signal receiving device is in communication connection with a temperature sensor of the plunger structure.
The beneficial effects of the fracturing pump in the technical scheme are similar to those of the plunger structure, and redundant description is omitted here.
The invention also provides a working temperature monitoring method of the plunger structure, which is based on the plunger structure, and comprises the following steps:
Acquiring temperature values acquired by a temperature sensor in a plurality of working periods;
Calculating an average value of a plurality of the temperature values;
Determining the outer surface temperature of the plunger structure according to the average value and a preset temperature coefficient;
judging whether the working temperature of the plunger structure is normal or not according to the temperature of the outer surface.
Further, the working temperature monitoring method of the plug structure further comprises the steps of determining the actual outer surface temperature of the plug structure in a plurality of working periods according to the preset temperature coefficient and a plurality of temperature values;
Judging whether the working state of the plunger structure is normal according to the outer surface temperature comprises the following steps:
And when the outer surface temperature is greater than or equal to a first preset temperature and a first preset number of actual outer surface temperatures greater than or equal to the first preset temperature exist, judging that the working temperature of the plunger structure is abnormal.
The working temperature monitoring method of the plunger structure has the advantages similar to the plunger structure, and can monitor the working temperature of the plunger structure more reasonably and accurately.
Drawings
FIG. 1 is a schematic radial cross-section of a plunger structure in an embodiment of the invention;
FIG. 2 is a schematic diagram showing a radial cross-section of a plunger structure in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view in radial cross-section of a plunger structure in an embodiment of the invention;
FIG. 4 is a side view of a plunger structure in an embodiment of the invention;
FIG. 5 is a schematic cross-sectional view of a plunger structure in accordance with an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a plunger structure according to an embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view of a plunger structure in an embodiment of the invention;
FIG. 8 is a schematic view in radial cross section of a plunger structure in an embodiment of the invention;
fig. 9 is a flowchart of a method for monitoring the operating temperature of a plunger structure in an embodiment of the invention.
Reference numerals illustrate:
1-plunger body, 2-temperature sensor, 3-center line, 4-limit structure, 5-support structure, 101-first groove, 102-second groove, 122-chute, 501-connecting block, 502-telescopic leg, 1221-first channel, 1222-second channel.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
It is noted that the terms "first," "second," and the like in the description and claims of the invention and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally connected, mechanically connected, directly connected, indirectly connected via an intermediate medium, or communicate between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present specification, the descriptions of the terms "embodiment," "one embodiment," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or illustrated embodiment of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.
Referring to fig. 1 and 2, a plunger structure according to an embodiment of the present invention includes a plunger body 1 and a temperature sensor 2, a first groove 101 and a second groove 102 are disposed at the plunger body 1, a notch of the first groove 101 is located at a side wall of the second groove 102, and the temperature sensor 2 is disposed in the first groove 101.
In oil and gas fracturing operations, the fracturing pump is typically under high pressure, high strength operating conditions. The plunger is a key structure of a hydraulic end of the fracturing pump, is easy to damage, can generate higher temperature on the surface of the plunger due to long-term friction during operation, and can cause safety accidents during the fracturing operation if the plunger is too high in temperature to take measures in time during operation. In the related art, the temperature sensor is arranged to be fixedly connected with the outer wall of the plunger, so that the outer wall of the plunger is measured in temperature, but the arrangement mode of the temperature sensor generally changes the outer structure of the plunger and the hydraulic end structure of the fracturing pump, so that the normal operation of the fracturing pump is influenced.
The plunger structure of the embodiment of the invention can be applied to a fracturing pump, and comprises a plunger body 1, such as a generally cylindrical structure in fig. 1 and 2, and a temperature sensor 2, wherein the temperature sensor 2 is used for detecting the temperature of the plunger body 1 when in operation, a first groove 101 and a second groove 102 are arranged at the plunger body 1, an opening of the second groove 102 is positioned on the outer surface of the plunger body 1, in the embodiment, the second groove 102 is a generally cylindrical groove with the diameter of 30-50mm and the depth of 100mm at the bearing end core position of the plunger body 1, in addition, the notch of the first groove 101 is positioned at the second groove 102, so that the first groove 101 is communicated with the second groove 102, wherein the first groove 101 is used for installing the temperature sensor 2, so that the temperature sensor 2 can detect the temperature of the plunger body 1, and in a specific embodiment, the groove bottom of the first groove 101 is close to the outer wall of the plunger body 1, so that when the temperature sensor 2 is arranged at the first groove 101, the outer surface of the plunger body 1 can be more directly measured. At this time, the first groove 101 is a groove formed in the second groove 102 towards the outer wall of the plunger body 1, and the inner diameter of the first groove 101 may be identical to the outer diameter of the temperature sensor 2 or slightly larger than the temperature sensor 2, so that the temperature sensor 2 is installed, and when the temperature sensor 2 is installed, the temperature sensor 2 is sent to the first groove 101 from the second groove 102 by a tool, so that the temperature sensor 2 is installed.
In the plunger structure according to the embodiment, the first groove 101 for installing the temperature sensor 2 is formed at the plunger body 1, so that the influence of the external structure change on the running state of the plunger structure and the influence on the working running of the fracturing pump can be reduced compared with the case that the temperature sensor 2 is connected to the outer surface of the plunger body 1 and a fixing bracket for fixing the temperature sensor 2 is arranged. In addition, it can be understood that, due to the arrangement of the first groove 101 and the second groove 102 which are communicated, the temperature sensor 2 is further installed at the first groove 101 in the plunger body 1, so that the concealment of the installation position of the temperature sensor 2 can be improved, and compared with the arrangement of a fixing bracket for fixing the temperature sensor 2 and the like on the outer surface of the plunger body 1, the temperature sensor 2 can be prevented from being influenced by misoperation of field constructors, so that the temperature measuring function is lost.
In the fracturing pump or fracturing pump system of the present invention, the fracturing pump or fracturing pump system comprises a signal receiving device and a temperature display device in communication connection with the signal receiving device, wherein the signal receiving device is in communication connection with the temperature sensor 2, so as to be used for receiving temperature information detected by the temperature sensor and displaying the temperature information.
In addition, the fracturing pump or the fracturing pump system can further comprise an alarm device which can be in communication connection with the signal receiving device, so that an alarm can be given when the detected temperature is greater than a certain preset value.
In an alternative embodiment of the invention, the minimum distance between the bottom of the first groove 101 and the outer wall of the plunger body 1 is greater than or equal to 4mm and less than or equal to 12mm.
Referring to fig. 1, the minimum distance between the bottom of the first groove 101 and the outer wall of the plunger body 1, that is, the distance between the bottom of the first groove 101 and the closest outer wall of the plunger body 1, such as the distance L in fig. 1, is within 4-12mm, preferably within 5-10mm, so as to form the first groove 101, when the temperature sensor 2 is located in the first groove 101 for measuring the temperature, the measured temperature can be closer to the outer wall of the plunger body 1, and corresponds to the temperature of the outer wall, so that the outer wall temperature can be measured more intuitively, and in addition, a certain thickness is also present in the distance, so that the first groove is formed, meanwhile, the better structural strength of the plunger body 1 is ensured, and the service life of the plunger body 1 is ensured.
In an alternative embodiment of the present invention, the plunger structure further includes a limiting structure 4, the limiting structure 4 is detachably disposed at the first groove 101, and the limiting structure 4 is adapted to abut against the temperature sensor 2.
Referring to fig. 2 and 3, in the present embodiment, the plunger structure includes a limiting structure 4, and the limiting structure 4 can be mounted at the first groove 101, so as to perform a supporting and limiting on the mounting position of the temperature sensor 2, so as to ensure the mounting stability of the temperature sensor 2.
The limiting structure 4 may specifically be a plug structure, after the temperature sensor 2 is disposed at the first groove 101, the notch of the first groove 101 is plugged by the plug structure, so as to support and limit the temperature sensor 2, thereby ensuring the installation stability of the temperature sensor 2 and further improving the concealment of the installation position of the temperature sensor 2.
In an alternative embodiment of the invention, the limit structure 4 is adapted to move towards or away from the bottom of the first recess 101.
In this embodiment, when the limit structure 4 is installed in the first groove 101, it can move in the first groove 101, as shown in fig. 1-3, and specifically can move in the up-down direction of the first groove 101, and further in the moving process, the limit structure 4 is abutted against the temperature sensor 2, so that the position of the temperature sensor 2 in the first groove 101 can be adjusted, specifically, when the limit structure 4 moves upward, that is, moves towards the bottom direction close to the first groove 101, the temperature sensor 2 is pushed to move towards the bottom of the first groove 101, and when the limit structure 4 moves downward, that is, moves away from the bottom of the first groove 101, the limit structure 4 is separated from the temperature sensor 2, so that the temperature sensor 2 can move downward, thereby adjusting the detection distance of the temperature sensor 2, further ensuring the accuracy in temperature detection, and facilitating the disassembly and assembly of the temperature sensor 2.
In an alternative embodiment of the present invention, the outer periphery of the limit structure 4 is provided with a first thread structure, and the inner wall of the first groove 101 is provided with a second thread structure matched with the first thread structure.
In this embodiment, the outer periphery of the limit structure 4 and the inner wall of the first groove 101 are respectively provided with the first thread structure and the second thread structure, so as to realize detachable connection of the limit structure 4 and the first groove 101 and a movable adjustment form of the limit structure 4 and the first groove 101, it can be understood that the limit structure 4 can be moved towards the bottom direction close to or far from the first groove 101 by rotating the limit structure 4, and the position after movement is kept, and the movable control and disassembly of the limit structure 4 are also facilitated by adopting a threaded connection mode. It can be understood that the limiting structure 4 can be provided with corresponding clamping grooves, such as inner hexagonal grooves and outer hexagonal grooves, so that the related tools can be matched, installed, disassembled and adjusted conveniently.
In an alternative embodiment of the present invention, the axis of the first groove 101 is perpendicular to the axis of the second groove 102, or the axis of the first groove 101 is inclined with respect to the axis of the second groove 102, wherein the direction of inclination is a direction away from the notch of the second groove 102.
In this embodiment, the opening direction of the second groove 102 is parallel to the horizontal plane, and specifically, referring to fig. 1-3, in a specific embodiment of the present invention, the axis of the second groove 102 is the central line 3, and is parallel to the horizontal plane, correspondingly, the opening direction of the first groove 101 is vertically downward, and the opening direction of the second groove 102 is horizontally rightward, where the axis of the first groove 101 is perpendicular to the axis of the second groove 102, and the first groove 101 is a substantially vertical groove structure, so as to facilitate the installation of the limiting structure 4. In a further embodiment, referring to fig. 8, the first groove 101 may be a groove structure that is offset to the left and is in an inclined form, specifically, that is, the axis of the first groove 101 is inclined relative to the axis of the second groove 102, wherein the inclined direction is a direction away from the notch of the second groove 102, so that by opening the first groove 101 in an inclined form, the temperature sensor 2 is facilitated to be plugged into the first groove 101, thereby facilitating the installation of the temperature sensor 2.
In an alternative embodiment of the present invention, the center line of the second groove 102 coincides with the center line of the plunger body 1, the plunger structure further comprises a support structure 5, the support structure 5 is detachably disposed in the second groove 102, and the support structure 5 is adapted to abut against the inner wall of the second groove 102.
In this embodiment, the cross section of the second groove 102 is substantially circular, so that the second groove 102 is substantially a cylindrical structure, where the plunger body 1 is generally a cylindrical structure, or a cylindrical structural portion exists, at this time, the center line of the second groove 102 coincides with the center line of the plunger body 1, that is, the center line 3 in fig. 1, so that the slotting form of the second groove 102 is the slotting formed in the middle of the side surface of the plunger body 1 and the outer periphery of the middle of the side surface of the plunger body 1, thereby reducing the influence of the second groove 102 on the structural strength of the plunger body 1 as much as possible, and in addition, the plunger structure further includes a supporting structure 5, so that after the temperature sensor 2 is installed, the supporting structure 5 can be embedded in the second groove 102, so that the supporting structure 5 can abut against the inner wall of the second groove 102, thereby supporting the plunger body 1, thereby improving the structural strength of the plunger structure and prolonging the service life of the plunger structure.
In an alternative embodiment of the present invention, the support structure 5 includes a connection block 501 and a plurality of telescopic legs 502 circumferentially disposed around the connection block 501, a plurality of sliding grooves 122 are provided at an inner wall of the second groove 102, the sliding grooves 122 include a first channel 1221 extending along a length direction of the plunger body 1 and a second channel 1222 extending along a circumference direction of the plunger body 1, the first channel 1221 communicates with the second channel 1222, the telescopic legs 502 are adapted to slide in the first channel 1221 and the second channel 1222, and when the telescopic legs 502 slide to an end of the second channel 1222 away from the first channel 1221, the telescopic legs 502 are in a contracted state, and the telescopic legs 502 abut against a bottom of the second channel 1222.
Referring to fig. 3 to 7, in the present embodiment, the support structure 5 includes a connection block 501 and a plurality of telescopic legs 502 provided around the outer periphery of the connection block 501, the plurality of telescopic legs 502 are used for abutting support for a plurality of positions of the inner wall of the second recess 102, wherein the telescopic legs 502 may include a structural part made of an elastic material, or a structural part including a spring, etc., to perform adaptive deformation and expansion, a plurality of sliding grooves 122 are provided at the inner wall of the second recess 102 to correspond to the plurality of telescopic legs 502, one ends of the telescopic legs 502 slide in the sliding grooves 122, wherein the sliding grooves 122 include first grooves 1221 extending in the length direction of the plunger body 1, whereby the plurality of telescopic legs 502 can slide in the groove bottom or notch direction of the second recess 102 based on the respective first grooves 1221, while the sliding grooves 122 include second grooves 1222 extending in the circumferential direction of the plunger body 1, the second channel 1222 is communicated with the first channel 1221, so that when the telescopic leg 502 slides to the communication position between the second channel 1222 and the first channel 1221 at the first channel 1221, the telescopic leg 502 can change to slide at the second channel 1222, and because the second channel 1222 extends circumferentially relative to the plunger body 1, the supporting structure 5 can rotate in the second groove 102, that is, rotate along the sliding of the second channel 1222, and rotate to the end of the second channel 1222 far from the first channel 1221, the telescopic leg 502 is in a contracted state, so that the telescopic leg 502 in the contracted state is in abutting contact with the bottom of the second channel 1222, thereby performing abutting support on the inner wall of the second groove 102, that is, performing grooved support on the plunger body 1, and improving the structural strength of the plunger body 1. Because the telescopic supporting leg 502 of the supporting structure 5 slides to the second channel 1222 along the first channel 1221, the telescopic supporting leg 502 can be abutted by the side wall of the second channel 1222 in the length direction of the plunger body 1, so that the supporting structure 5 can be prevented from being separated when the plunger structure moves, and the structural stability of the plunger structure is improved.
The second channel 1222 may be configured such that an end of the second channel 1222 away from the first channel 1221 protrudes relative to an end of the second channel 1221 near the first channel 1221, so that the telescopic leg 502 is adaptively retracted when the telescopic leg 502 slides along the second channel 1222, and thus, when the telescopic leg is in the retracted state, the bottom of the second channel 1222 abuts against the inner wall of the second groove 102.
A fracturing pump of another embodiment of the present invention includes a plunger structure as described above.
The fracturing pump can further comprise a signal receiving device and a temperature display device which is in communication connection with the signal receiving device, wherein the signal receiving device is in communication connection with the temperature sensor 2 of the plunger structure.
And the fracturing pump can further comprise an alarm device which is in communication connection with the signal receiving device.
Therefore, the beneficial effects of the fracturing pump disclosed by the embodiment of the invention are similar to those of the plunger structure, and the fracturing pump can receive and display the temperature detected by the temperature sensor 2 and alarm according to the temperature condition.
Referring to fig. 9, a method for monitoring an operating temperature of a plunger structure according to another embodiment of the present invention includes:
s1, acquiring temperature values acquired by a temperature sensor 2 in a plurality of working periods;
s2, calculating the average value of a plurality of temperature values;
s3, determining the outer surface temperature of the plunger structure according to the average value and a preset temperature coefficient;
and S4, judging whether the working temperature of the plunger structure is normal or not according to the temperature of the outer surface.
According to the working temperature monitoring method of the plunger structure, based on the plunger structure, when the fracturing pump drives the plunger structure to work, real-time detection is carried out through the temperature sensor 2 in the first groove 101, and specifically, temperature values in a plurality of working periods are detected, and as the temperature sensor 2 is located in the first groove 101, the detected temperature values and the outer surface temperature values of the plunger structure possibly have certain differences, on one hand, the working states of the plunger structure in a plurality of working periods are evaluated according to the average value of the plurality of temperature values, so that misjudgment is avoided, and the outer surface temperature of the plunger structure in the plurality of working periods, such as the product of the average value and the preset temperature, is determined according to the average value and the preset temperature coefficient, so that more accurate evaluation is carried out on the outer surface temperature of the plunger structure, and therefore, whether the working temperature of the plunger structure is normal or not is judged according to the outer surface temperature, and therefore the working temperature of the plunger structure can be monitored more reasonably.
When the temperature of the outer surface is higher than a certain preset temperature, the working temperature of the plunger structure is judged to be abnormal, and then an indication instruction for indicating the abnormality can be generated to an alarm device, for example, the indication instruction can be sent to the alarm device of the fracturing pump with the plunger structure so as to alarm, so that an operator can process in time.
In addition, the working temperature monitoring method of the plunger structure further comprises the step of generating an indication instruction for displaying a plurality of temperature values and/or the outer surface temperature, and sending the indication instruction to a display device, such as a temperature display device of the fracturing pump with the plunger structure, so as to display the temperature values and/or the outer surface temperature values.
In an optional embodiment of the present invention, the method for monitoring an operating temperature of the plunger structure further includes determining an actual outer surface temperature of the plunger structure during a plurality of the operating periods according to the preset temperature coefficient and a plurality of the temperature values;
Judging whether the working state of the plunger structure is normal according to the outer surface temperature comprises the following steps:
And when the outer surface temperature is greater than or equal to a first preset temperature and a first preset number of actual outer surface temperatures greater than or equal to the first preset temperature exist, judging that the working temperature of the plunger structure is abnormal.
In this embodiment, when the working state of the plunger structure is judged according to the outer surface temperature, the outer surface temperature and the actual outer surface temperatures in the working periods are specifically judged, where the actual outer surface temperature is determined by a preset temperature coefficient and temperature values in each working period, so that when the outer surface temperature is greater than a first preset temperature, and a first preset number of values greater than the first preset temperature exist in the actual outer surface temperatures, the outer surface temperature of the plunger structure is higher in the working periods, so that the working temperature of the plunger structure is judged to be abnormal, and the working temperature of the plunger structure is monitored more reasonably and accurately.
In an optional embodiment, the determining whether the working state of the plunger structure is normal according to the outer surface temperature further includes:
When the outer surface temperature is greater than a second preset temperature and less than the first preset temperature and a second preset number of real-time surface temperatures greater than a third preset temperature exist, the working temperature of the plunger structure is judged to be abnormal, wherein the third preset temperature is greater than the first preset temperature, and the second preset number is less than the first preset number.
In this embodiment, if the outer surface temperature representing the average temperature is smaller, but in each working period, there are a second preset number of real-time surface temperatures, and when the temperature values of these real-time surface temperatures are larger, it indicates that the plunger structure has a part of extreme working states, and at this time, it is determined that the working temperature of the plunger structure is abnormal, and the working temperature monitoring of the plunger structure is more reasonable and accurate.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.
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Priority Applications (1)
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| CN116816661A (en) * | 2023-07-06 | 2023-09-29 | 三一能源装备有限公司 | Plunger and fracturing pump |
| CN118188474B (en) * | 2024-04-24 | 2024-08-27 | 建湖金拓机械制造有限公司 | Plunger type fracturing pump and fracturing truck |
Citations (4)
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| CN104441571A (en) * | 2014-11-04 | 2015-03-25 | 北京石油化工学院 | Method for measuring temperature of polymer melt on screw rod surface |
| CN204610245U (en) * | 2015-05-20 | 2015-09-02 | 重庆胤合石油化工机械制造有限公司 | A kind of tungsten titanium plunger |
| CN112728717A (en) * | 2021-01-04 | 2021-04-30 | 格力电器（武汉）有限公司 | Temperature sensor control method, electronic device and storage medium |
| CN215109437U (en) * | 2021-05-20 | 2021-12-10 | 三一石油智能装备有限公司 | Plunger structure and fracturing pump |
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| CN212774730U (en) * | 2020-04-15 | 2021-03-23 | 陕西航天动力高科技股份有限公司 | A hollow plunger for diaphragm pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441571A (en) * | 2014-11-04 | 2015-03-25 | 北京石油化工学院 | Method for measuring temperature of polymer melt on screw rod surface |
| CN204610245U (en) * | 2015-05-20 | 2015-09-02 | 重庆胤合石油化工机械制造有限公司 | A kind of tungsten titanium plunger |
| CN112728717A (en) * | 2021-01-04 | 2021-04-30 | 格力电器（武汉）有限公司 | Temperature sensor control method, electronic device and storage medium |
| CN215109437U (en) * | 2021-05-20 | 2021-12-10 | 三一石油智能装备有限公司 | Plunger structure and fracturing pump |
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