CN107762825A - A kind of pressure break pump hydraulic end plunger and spool position detecting system - Google Patents
A kind of pressure break pump hydraulic end plunger and spool position detecting system Download PDFInfo
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- CN107762825A CN107762825A CN201711258786.7A CN201711258786A CN107762825A CN 107762825 A CN107762825 A CN 107762825A CN 201711258786 A CN201711258786 A CN 201711258786A CN 107762825 A CN107762825 A CN 107762825A
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- plunger
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 127
- 238000012545 processing Methods 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 29
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 238000013480 data collection Methods 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 12
- 230000008569 process Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 7
- 230000006698 induction Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000010242 baoji Substances 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
-
- 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
- F04B53/10—Valves; Arrangement of valves
- F04B53/12—Valves; Arrangement of valves arranged in or on pistons
- F04B53/125—Reciprocating valves
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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
- F04B53/22—Arrangements for enabling ready assembly or disassembly
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Details Of Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of pressure break pump hydraulic end plunger and spool position detecting system, and it includes displacement data detecting system, displacement data processing system.Displacement data detecting system includes multiple high-precision sensors and a data acquisition unit, by installing displacement transducer respectively in correspondence position, the real-time key parameters such as pressure break pump hydraulic end plunger position, dump valve spool position, inlet valve spool position that obtain are sent to data acquisition unit.The real time data that displacement data processing system is gathered to called data collector, and be acted upon analyzing, pass through host computer interface real-time display.The beneficial effects of the invention are as follows：The real-time monitoring of pressure break pump hydraulic end key components and parts running parameter is realized, pressure break pump hydraulic end key components and parts running parameter real change situation in operation process has been verified, very effective measuring method is provided for designing unit and work unit.
Description
Technical field
The present invention relates to oil field equipment technical field, more particularly to a kind of pressure break pump hydraulic end plunger and valve element position
Put detecting system.
Background technology
In recent years, productive life after during domestic each oil field subsequently enters, and complex lithology oil-gas reservoir, high pressure, super-pressure, depth
Well, ultradeep well, abnormal pressure stratum, four low reservoirs（Hypotonic, low pressure, low yield, low abundance）, horizontal well, the complicated knot such as multiple-limb
Structure well is on the increase so that the difficulty of oil extraction is more and more big.To ensure efficient oil recovery factor, high-power, big row
Amount, the Frac unit of super-pressure the putting into production day and night in each elephant, perform meritorious deeds never to be obliterated.
Current domestic Frac unit manufacturer is concentrated mainly on the machine of sinopec petroleum works Machinery Co., Ltd. the 4th
Tool factory is representational heavyweight enterprise.Shandong Yantai Jereh Petroleum Equipment Technologies Co., Ltd. is by 15 developments carried and skill
Art is tackled key problems, and in the industry cycle also has very important status.Then there is Lanzhou general-purpose machinery manufacture in share less enterprise in occuping market
Co., Ltd, Baoji Petroleum Machinery Factory, Lanzhou Mining Field Machinery Co., Ltd., Hubei Zhongyou Kehao Machinery Manufacturing Co., Ltd., forever
Safe group's Ningbo High Pressure pump factory, Shanghai Qinghe Machinery Co., Ltd. etc..Although the country, which enters fracturing unit, manufactures industry
Enterprise is in the gesture increased year by year, and the heavyweight enterprise with market leader is greatly developing and innovated always.But just at present
From the point of view of the use situation of domestic Frac unit, some defects are still suffered from.Existing domestic pressure break equipment overall operation ability is universal
Relatively low, operation effectiveness is poor in the operating mode such as unconventionaloil pool field and deep-well oil well, the reality of pump head body and other key components and parts
Border service life is much smaller than design service life.
Factory testing is last procedure before fracturing unit comes into operation, and a step of most critical.Factory testing
Effect be mainly reflected in：On the one hand, the trial operation work of different input parameters is carried out under approximate operating mode to fracturing unit, can
Timely and effectively to find that the pump is that may be present due to the problem of being produced in design or manufacturing process, ensure fracturing unit producer
The quality for each equipment produced；On the other hand, for implementing the test-bed of factory testing, research staff can be helped
Equipment critical component and variation characteristic of important technological parameters during normal operation under approximate operating mode are understood fully, passes through Comparability test knot
Fruit and Theoretical Design result, the design and manufacture of further Optimum Fracturing equipment.However, the use built from current domestic manufacturer
Perfect not enough in the test-bed of factory testing, the critical technical parameter of detection is also far from enough compared to design parameter, for
Critical component and researching and analysing for major parameter more lack inside fracturing unit.More effectively to ensure equipment outgoing
The in depth working mechanism of research equipment all parts, it is badly in need of a set of perfect fracturing unit detecting system.
With the sustainable development of science and technology, detection technique has obtained huge raising in terms of hardware and software.It is based on
Prior art, the height of R＆D institution and industrial unit to the running parameter of measured object under severe, complex environment can be realized completely
Accuracy detection demand.
In consideration of it, the present inventor relies on relevant design and manufacturing experience for many years, using measuring pressure break pump hydraulic end
Plunger, discharge valve core, the real time position for sucking valve core, propose a kind of pressure break pump hydraulic end plunger and spool position detection system
System, experimental provision and method are provided for pressure break pump hydraulic end factory testing, field experiment, later stage optimization design.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of pressure break pump hydraulic end plunger and spool position
Detecting system.The system can obtain the key job parameter of fluid end in the fracturing pump course of work, including plunger position, discharge
Spool position, inhalation valve position.
The purpose of the present invention is achieved through the following technical solutions：A kind of pressure break pump hydraulic end plunger and spool position detection
System, it is characterised in that：Including data detection system and data handling system；The data detection system includes being used to obtain in real time
The plunger displacement sensor of pump hydraulic end plunger position is split in pressure, including for obtaining the dump valve of dump valve spool position in real time
Displacement transducer, including for obtaining the inlet valve displacement transducer of inlet valve spool position in real time, including for gathering in real time
The data acquisition unit of data；Described data handling system includes soft for the data acquisition of each sensing data of real-time display
Part and host computer.
Described plunger displacement sensor, dump valve displacement transducer, the basic structure of inlet valve displacement transducer are similar,
Operation principle uses linear variable difference transformer（LVDT）.By founding mathematical models, in each displacement transducer matrix
Surrounding is wound with induction coil, and cored in the placement of matrix inner chamber, realizes accurately measuring for tested object location.
Described plunger displacement sensor is furnished with special fixed support, fixed support and pressure break pump hydraulic end outlet side method
Orchid connection, plunger displacement sensor base are connected through a screw thread with fixed support, and plunger displacement sensor pull rod passes through special company
Connection device and clamp connection.
Described dump valve displacement transducer matrix material is 304 stainless steels, and sensor base design pressure voltage is
200MPa, and by actual voltage-withstand test, test result is the matrix averaged deformation amount under 160MPa pressure（Constant pressure two minutes）
≤ 0.013mm, while there is corrosion resistant feature.Dump valve displacement transducer matrix passes through locking nut, and with discharging plug
It is connected through a screw thread, used screw thread specification, effective length of action pass through strength check.Dump valve displacement transducer matrix
Junction with discharging plug is provided with the high-pressure seal ring that can resist 500MPa pressure.Sensor pull rod one end and dump valve valve
Core upper end connects, and the other end installs cored and guide ring.
Described inlet valve displacement transducer matrix is arranged on the total manifold bottom of suction line by firm banking, and sensor is drawn
Bar upper end is connected with suction valve core bottom, and cored and guide ring is installed in sensor pull rod lower end.Inlet valve displacement transducer
Matrix has the characteristics of elongated, can both reduce influence of the matrix to suction line flow field, can ensure inlet valve displacement sensing again
Device pull bar is not by the radial impact of fluid.
Described data acquisition unit is realized synchronizes collection, and the collection of each passage to the data of all the sensors output
Frequency can realize self-defined setting.
The present invention also proposes the method using the pressure break pump hydraulic end plunger and spool position detecting system, includes following step
Suddenly：
1）The dump valve displacement transducer is arranged on discharge plug：1. will install dump valve displacement transducer iron core and
The dump valve displacement transducer pull bar of guide ring carries out screw thread cooperation with discharge valve core upper end；2. the dump valve displacement is passed
Sensor matrix carries out screw thread cooperation with discharge plug, and the sealing ring is placed between matrix and plug；
2）The inlet valve displacement transducer is arranged on suction line：1. inlet valve displacement transducer iron core will be installed and led
Screw thread cooperation is carried out to the inlet valve displacement transducer pull bar and suction valve core bottom of ring；2. the firm banking is soldered to
Suction line bottom, and by the inlet valve displacement transducer matrix with carrying out screw thread cooperation with base；
3）The plunger displacement sensor is arranged on fluid end：1. the fixed support is arranged on discharge end flanges；②
The plunger displacement sensor base is fitted into fixed support and ensures that both are coaxial, plunger displacement sensor base is carried out
It is fixed；3. the plunger displacement sensor pull rod is fixed by special attachment means with clip, and pass through plunger axial direction
Mobile detection and the diameter parallel for ensuring pull bar and plunger；
4）The dump valve displacement transducer, inlet valve displacement transducer, plunger displacement sensor are accessed into the high-speed data
Collector, and in host computer PC end service data acquisition software；
5）Before carrying out data acquisition, by data acquisition software described in the Data Enters such as pressure break pump type, running parameter；
6）After fracturing pump enters the working stability stage, data acquisition is carried out, and pass through the data acquisition software real-time monitored pressure
Split the change curve and duration of three displacements of pump hydraulic end；
7）Data acquisition two minutes, and data are preserved in time, the high-speed data acquisition software will be with running parameter and time
Data file is named for title.
The present invention has advantages below：（1）The present invention can accurately detect pressure break pump hydraulic end plunger position, dump valve valve
The key parameters such as core position, inlet valve spool position；（2）The present invention gives plunger displacement sensor, dump valve displacement sensing
Device, the basic structure of inlet valve displacement transducer and mounting means；（3）The present invention can according to the different demands of research work,
The self-defined frequency acquisition that each passage is set, the precision of measured data can be both improved, Data Post can be reduced again
The time cost of work；（4）The present invention can monitor the fortune of fracturing pump each parts of its fluid end in operation process in real time
Dynamic state, facilitate on-site personnel monitor and judge in advance in real time parts whether failure；（5）It is each designed by the present invention
The mounting means of sensor is installed and dismantled more convenient not damage fluid end matrix as principle, and is easily changed.
Brief description of the drawings
Fig. 1 is the basic boom figure of the present invention；
Fig. 2 is the profile of the mounting structure schematic diagram of apparatus of the present invention；
Fig. 3 is the right view of the mounting structure schematic diagram of apparatus of the present invention；
Fig. 4 is the dump valve displacement transducer basic structure and mounting means figure of apparatus of the present invention；
Fig. 5 is the inlet valve displacement transducer basic structure and mounting means figure of apparatus of the present invention；
Fig. 6 is the plunger displacement sensor basic structure and mounting means figure of apparatus of the present invention.
In figure, 1- dump valve displacement transducers, 2- discharge plugs, 3- discharge valve cores, 4- suction valve cores, 5- suctions
Pipe, 6- firm bankings, 7- inlet valve displacement transducers, 8- pressure break pump hydraulic ends, 9- plungers, 10- clips, 11- attachment means,
12- plunger displacement sensor pull rods, 13- plunger displacement sensors, 14- fixed supports, 15- dump valve displacement transducer matrixes,
16- dump valve displacement transducer induction coils, 17- dump valve displacement transducer iron cores, 18- dump valve displacement transducer pull bars,
19- locking nuts, 20- sealing rings, 21- inlet valve displacement transducer pull bars, 22- inlet valve displacement transducer matrixes, 23- suctions
Valve displacement transducer induction coil, 24- inlet valve displacement transducer iron cores, 25- nuts, 26- discharge end flanges, 27- plungers position
Displacement sensor matrix.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, and protection scope of the present invention is not limited to following description：
As shown in figure 1, a kind of pressure break pump hydraulic end plunger and spool position detecting system, it includes data detection system, data
Processing system.Data detection system includes multiple high accuracy displacement sensors and a data acquisition unit, by correspondence position
Install sensor respectively, the position of plunger 9 in 8 each working cylinder of pressure break pump hydraulic end can be obtained in real time, discharges valve core 3
Put, suck three kinds of 4 position of valve core key parameter, and be sent to data acquisition unit.Data handling system is adopted to called data
The real time data that storage is gathered, and be acted upon analyzing, pass through host computer interface real-time display.
As shown in Fig. 2 described data detection system is by plunger displacement sensor 13, dump valve displacement transducer 1, suction
Valve displacement transducer 7 and high speed data acquisition system composition.Plunger displacement sensor 13 is arranged on the side of pressure break pump hydraulic end 8,
The axis of plunger displacement sensor base 27 and the diameter parallel of plunger 9.Dump valve displacement transducer 1 is arranged on pressure break pump hydraulic end 8
On the discharge plug 2 on top.Inlet valve displacement transducer 7 is arranged on the suction line 5 of the bottom of pressure break pump hydraulic end 8.
As shown in figure 3, described data detection system can include multiple dump valve displacement transducers 1, inlet valve displacement
Sensor 7, it is possible to achieve in once dispatch from the factory test or field operation while measure each discharge valve core of pressure break pump hydraulic end 8
3rd, the key parameters such as real time position, the valve element lift of valve core 4 are sucked, and then obtain each discharge valve core 3, suction valve core
4 in same jig frequency the major parameter such as the movement velocity of different time sections, acceleration, carry out later stage fracturing pump two for research staff
Suboptimization design provides very important data and supported.
As shown in figure 3, described dump valve displacement transducer 1 is connected through a screw thread the pressure break for being fixed on and having installed
Pump hydraulic end 8 is discharged on plug 2, and used screw thread specification, effective length of action pass through strength check.In dump valve displacement
Between sensor base 15 and the faying face for discharging plug 2, high-pressure seal ring 20 is installed, realizes that pressure break pump hydraulic end 8 sucks
Liquid in chamber does not leak outside.The one end of dump valve displacement transducer pull bar 18 is connected with discharge valve core 3 by fine thread, can be dropped
Low thread coordinates the influence to pull bar perpendicularity.The other end of dump valve displacement transducer pull bar 18 is provided with dump valve displacement sensing
Device iron core 17, iron core are linear variable difference transformers（LVDT）Key member.Discharge valve core 3 is being turned on or off
When, valve element is not vertical unlocking, therefore is placed with guide ring on dump valve displacement transducer pull bar 18, it is therefore intended that is ensured
Dump valve displacement transducer iron core 17 can smoothly be moved back and forth and will not produced with matrix inwall in the discharge motion process of valve core 3
Raw friction.
As shown in figure 3, the measuring principle of described dump valve displacement transducer 1 is：In fracturing pump operation process, due to
The reciprocating motion of plunger 9 causes fluid pressure in fluid end suction chamber to produce regular change.When fluid end sucks intracavity liquid
During pressure rise, discharge valve core 3 moves upwards in the presence of fluid pressure, drive dump valve displacement transducer pull bar 18 to
Upper motion.Axial location of the iron core in dump valve displacement transducer matrix 15 on dump valve displacement transducer pull bar 18 becomes
Change, cause the voltage at the both ends of dump valve displacement transducer induction coil 15 on the outside of matrix to produce respective change.By linearly may be used
Transformer differential varying-voltage principle, the real time position of dump valve displacement transducer iron core 17 can be calculated, that is, discharges the real-time of valve core 3
Position.
As shown in figure 4, described inlet valve displacement transducer 7 is arranged on suction line 5.The underface welding of suction line 5
There is inlet valve displacement transducer firm banking 6, firm banking is realized by the nut 25 for rotating the bottom of inlet valve displacement transducer 7
6 coordinate with the screw thread of inlet valve displacement transducer 7, and encapsulant is wound with screw thread cooperation.Inlet valve displacement transducer pull bar
21 one end is connected with suction valve core 4 by fine thread, can reduce influence of the screw thread cooperation to pull bar perpendicularity.Inlet valve
The installation of the other end of displacement transducer pull bar 21 is cored, and guide ring is placed between iron core and pull bar.
As shown in figure 4, the measuring principle of described inlet valve displacement transducer 7 is：In fracturing pump operation process, due to
The reciprocating motion of plunger 9 causes fluid pressure in fluid end suction chamber to produce regular change.When fluid end sucks intracavity liquid
When pressure reduces, suction valve core 4 moves upwards in the presence of fluid pressure, drive inlet valve displacement transducer pull bar 21 to
Upper motion.Axial location of the iron core in inlet valve displacement transducer matrix 22 on inlet valve displacement transducer pull bar 21 becomes
Change, cause the voltage at the both ends of inlet valve displacement transducer induction coil 23 on the outside of matrix to produce respective change.By linearly may be used
Transformer differential varying-voltage principle, the real time position of iron core can be calculated, that is, suck the real time position of valve core 4.
As shown in figure 5, described plunger displacement sensor 13 is arranged on the side of pressure break pump hydraulic end 8.Plunger displacement senses
Equipped with the fixed support 14 taken, fixed support 14 is arranged in discharge end flanges 26 device 13.Plunger displacement sensor base 27
It is fitted into fixed support 14, and ensures that both are coaxial, plunger displacement sensor base 27 is fixed.By described plunger position
Displacement sensor pull bar 12 is fixed by special attachment means 11 with clip 10, and the side of plunger 9 is moved by axial reciprocating
Formula ensures the diameter parallel of pull bar and plunger 9.
As shown in figure 5, the measuring principle of described plunger displacement sensor 13 is：In fracturing pump operation process, power
Source drives power end of fracturing pump crank rotation, and the rotary motion of bent axle is converted to plunger by bent axle by connecting rod and crosshead device
9 axially reciprocating.The plunger displacement sensor pull rod 12 that is connected with the front band 10 of plunger 9 while move back and forth, it is real
Axial location change of the existing pull bar upper core in plunger displacement sensor base 27, causes the induction coil both ends on the outside of matrix
Voltage produce respective change.By linear variable differential varying-voltage principle, the real time position of iron core, i.e. plunger 9 can be calculated
Real time position.
Product of the present invention should follow following steps when implementing：
1）The dump valve displacement transducer 1 is arranged on discharge plug 2：1. the discharge of iron core and guide ring will be installed
Valve displacement transducer pull bar 18 carries out screw thread cooperation with discharge valve core 3 upper end；2. by the dump valve displacement transducer matrix
15 carry out screw thread cooperation with discharge plug 2, and the sealing ring 20 is placed between matrix and plug.
2）The inlet valve displacement transducer 7 is arranged on suction line 5：1. inlet valve displacement transducer iron will be installed
The inlet valve displacement transducer pull bar 21 of core 24 and guide ring carries out screw thread cooperation with suction valve core 4 bottom；2. will be described solid
Determine base 6 and be soldered to the bottom of suction line 5, and the inlet valve displacement transducer matrix 22 and base are subjected to screw thread cooperation.
3）The plunger displacement sensor 13 is arranged on fluid end：1. the fixed support 14 is arranged on outlet side
Flange 26；2. the plunger displacement sensor base 27 is fitted into fixed support 14 and ensures that both are coaxial, to plunger displacement
Sensor base 27 is fixed；3. the plunger displacement sensor pull rod 12 is entered by special attachment means 11 with clip 10
Row is fixed, and is moved axially detection by plunger 9 and ensured the diameter parallel of pull bar and plunger 9.
4）The dump valve displacement transducer 1, inlet valve displacement transducer 7, plunger displacement sensor 13 are accessed described
High speed data acquisition system, and in host computer PC end service data acquisition software.
5）Before carrying out data acquisition, by data acquisition software described in the Data Enters such as pressure break pump type, running parameter.
6）After fracturing pump enters the working stability stage, data acquisition is carried out, and see in real time by the data acquisition software
The change curve and duration of 8 three displacements of pump hydraulic end are split in pressure measurement.
7）Data acquisition two minutes, and data are preserved in time, the high-speed data acquisition software will with running parameter and
Time is that title is named to data file.
Above is the specific mounting means and experimental method of product of the present invention, the experimental provision and method can be drawn in difference
Operating mode lower plunger 9, discharge valve core 3, the real-time change curve for sucking valve core 4.This dispatches from the factory inspection for pressure break pump hydraulic end 8
Survey, field experiment, later stage optimization design are significant.
Described above is only the preferred embodiment of the present invention, it should be understood that of the invention being not limited to is described herein
Form, be not to be taken as the discharge to other embodiment, and can be used for various other combinations, modification and environment, and can be
In contemplated scope described herein, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art institute
The change and change of progress do not depart from the spirit and scope of the present invention, then all should be in the protection domain of appended claims of the present invention
It is interior.
Claims (7)
1. a kind of pressure break pump hydraulic end plunger and spool position detecting system, it is characterised in that：Including data detection system and number
According to processing system；The data detection system includes being used for the plunger displacement sensing for obtaining pressure break pump hydraulic end plunger position in real time
Device, including for obtaining the dump valve displacement transducer of dump valve spool position in real time, including for obtaining inlet valve valve in real time
The inlet valve displacement transducer of core position, including the data acquisition unit for real-time data collection；Described data handling system
Including including the data acquisition software and host computer for each sensing data of real-time display.
2. a kind of pressure break pump hydraulic end plunger according to claim 1 and spool position detecting system, it is characterised in that：Post
Plug displacement transducer, dump valve displacement transducer, the basic structure of inlet valve displacement transducer are similar, and operation principle uses line
Property variable differential transformer（LVDT）.
3. a kind of pressure break pump hydraulic end plunger according to claim 1 and spool position detecting system, it is characterised in that：Post
Plug displacement transducer is furnished with special mounting bracket, and mounting bracket is fixed on the interface of pressure break pump hydraulic end exhaust manifold, post
Plug displacement transducer matrix is connected through a screw thread with mounting bracket, and plunger displacement sensor pull rod is connected by fixed support and clip
Connect.
4. a kind of pressure break pump hydraulic end plunger according to claim 1 and spool position detecting system, it is characterised in that：Row
It is 304 stainless steels to go out valve displacement transducer matrix material, and sensor base can resist 200MPa pressure, while have corrosion-resistant
The characteristics of；Dump valve displacement transducer matrix passes through locking nut, and is connected through a screw thread with discharge plug, and junction is provided with
The high-pressure seal ring of 500MPa pressure can be resisted；Sensor pull rod one end is connected with discharge valve core upper end, and the other end is provided with
Iron core and guide ring.
5. a kind of pressure break pump hydraulic end plunger according to claim 1 and spool position detecting system, it is characterised in that：Inhale
Enter valve displacement transducer matrix and the total manifold bottom of suction line, sensor pull rod upper end and inlet valve valve are arranged on by special joint
Core bottom connects, and cored and guide ring is installed in sensor pull rod lower end.
6. inlet valve displacement transducer matrix has the characteristics of elongated, influence of the matrix to suction line flow field can be both reduced, again
Inlet valve displacement transducer pull bar can be ensured not by the radial impact of fluid.
7. a kind of pressure break pump hydraulic end plunger according to claim 1 and spool position detecting system, it is characterised in that：Number
Realized according to collector and collection is synchronized to the data of all the sensors output, and the frequency acquisition of each passage can be realized and made by oneself
Justice is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258786.7A CN107762825A (en) | 2017-12-04 | 2017-12-04 | A kind of pressure break pump hydraulic end plunger and spool position detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711258786.7A CN107762825A (en) | 2017-12-04 | 2017-12-04 | A kind of pressure break pump hydraulic end plunger and spool position detecting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107762825A true CN107762825A (en) | 2018-03-06 |
Family
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Cited By (5)
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| CN108444424A (en) * | 2018-03-16 | 2018-08-24 | 天津英创汇智汽车技术有限公司 | Inlet valve stroke measuring device and its measurement method |
| CN111609890A (en) * | 2020-06-17 | 2020-09-01 | 西南石油大学 | Fracturing manifold working condition monitoring, service life prediction and feedback regulation and control system |
| CN113175532A (en) * | 2021-04-28 | 2021-07-27 | 北京航空航天大学 | Adjustable cavitation venturi |
| CN115506762A (en) * | 2021-06-03 | 2022-12-23 | 中国石油天然气集团有限公司 | Method and device for detecting hydraulic end fault of fracturing pump |
| WO2023116294A1 (en) * | 2021-12-20 | 2023-06-29 | 烟台杰瑞石油服务集团股份有限公司 | Fracturing pump detection method, system and device, and storage medium |
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| CN108444424A (en) * | 2018-03-16 | 2018-08-24 | 天津英创汇智汽车技术有限公司 | Inlet valve stroke measuring device and its measurement method |
| CN111609890A (en) * | 2020-06-17 | 2020-09-01 | 西南石油大学 | Fracturing manifold working condition monitoring, service life prediction and feedback regulation and control system |
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| WO2023116294A1 (en) * | 2021-12-20 | 2023-06-29 | 烟台杰瑞石油服务集团股份有限公司 | Fracturing pump detection method, system and device, and storage medium |
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Application publication date: 20180306 |