CN204758054U - Positive -displacement pump flowmeter - Google Patents
Positive -displacement pump flowmeter Download PDFInfo
- Publication number
- CN204758054U CN204758054U CN201520493758.3U CN201520493758U CN204758054U CN 204758054 U CN204758054 U CN 204758054U CN 201520493758 U CN201520493758 U CN 201520493758U CN 204758054 U CN204758054 U CN 204758054U
- Authority
- CN
- China
- Prior art keywords
- timer
- permanent magnet
- data
- optical coupling
- processing circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 9
- 238000010168 coupling process Methods 0.000 claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 9
- 238000002955 isolation Methods 0.000 claims abstract description 8
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000011440 grout Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000005355 Hall effect Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a positive -displacement pump flowmeter solves current turbine flowmeter, the electric -magnetic flow meter very low problem of life in measurement water circulation rate of mud. Plunger pump (1) and motor pivot (2) transmission coordination, in the motor pivot one fixed permanent magnet (3), hall sensor (4) and permanent magnet mutual disposition, there is the space between the two, hall sensor's output and processing circuit are connected, processing circuit is by the optical coupling isolation circuit, the timer, constitute, hall sensor measuring data, handle through the optical coupling isolation circuit, turn into the pulse signal that the timer can be discerned, and can keep apart outside high frequency interference, the timer is measured the cycle of rotational speed pulse and is exported the singlechip, the singlechip calculates the discharge capacity of unit frequency of stroke, just can confirm the flow of plunger pump (1), the display is sent through the serial port communication module to the measuring data, erupt simultaneously and send to among the wireless transmitter, with the rotational speed, flow data carries out long distance transmission and arrives in the control computer.
Description
technical field:
The utility model is relevant with the gauging instrument of surveying work flow, especially relevant with the measuring apparatus of metering grout flow.
background technology:
Oil field well cementation (cylindrical shaft wall is sunk to shaft bottom centering behaviour flat after, by pipeline outside cylindrical shaft wall and well help between annular space inject the slurries as a form of gel that proportion is greater than mud, mud is cemented out from bottom to up and the operation of consolidation cylindrical shaft wall), pressure break is (with fracturing truck, liquid high-pressure large-displacement with certain viscosity clamp-ons oil reservoir, after oil reservoir is extruded many cracks, add proppant pack and enter crack, improve the penetrating power of hydrocarbon zone, to increase water injection rate or oil offtake) need in process to use cementing truck, fracturing truck is to underground water-injection mud (fracturing liquid).Grout is made up of water, cement, additive and extra material, there is very strong abrasiveness, the flowmeter (such as: turbo flow meter, electromagnetic flowmeter etc.) that existing grout measuring method uses when metering grout flow often serviceable life very low.Rule of thumb add up: cementing truck is provided with situation often flowmeter 3-10 in the serviceable life well (because grouting composition difference has difference in serviceable life) of turbine meter.Flowmeter is expensive, so short serviceable life does not obviously meet cost-saving requirement, the damage of flowmeter simultaneously also may cause the inaccurate of flow metering, cause polluting and waste to reduce excessive injection mud, cost is caused to increase, need try one's best and accurately control mud injection rate IR and control injection rate, need a kind of can still can the gauging instrument of stably measured working flow under objective rugged surroundings.Below only illustrate for cementing truck, needed to analyze the hole condition such as well depth, hole diameter before cement injection, calculate individual well grout use amount, carry out well cementing operation according to these data again, therefore when well cementing operation, the statistics of the measurement of instantaneous delivery and integrated flow is just seemed very important.
utility model content:
The purpose of this utility model is to provide that a kind of structure is simple, carrying portable, can use in rugged surroundings, accurate measurement, failure rate is low positive displacement pump flowmeter.
The utility model is achieved in that
Ram pump 1 coordinates with motor rotary shaft 2 transmission, motor rotary shaft is fixed a permanent magnet 3, Hall element 4 is positioned opposite with permanent magnet, there is space between the two, the output of Hall element is connected with signal processing circuit, signal processing circuit is by optical coupling isolation circuit, timer forms, the data that Hall element is measured, by optical coupling isolation circuit process, be converted into the pulse signal that timer can identify, and the high frequency interference of energy isolating exterior, the cycle that tacho-pulse measured by timer outputs to single-chip microcomputer, the discharge capacity of single-chip microcomputer unit of account jig frequency, just can determine the flow of ram pump 1, the data measured are sent to display by serial communication module, and be sent in wireless launcher, by rotating speed, data on flows carries out long-distance transmissions in monitoring computer.
The utility model is simple and light, can overcome severe environment for use, accurate measurement, failure rate is low.The utility model passes through the large pumping rate of metering thus achieve effective control fluid injection rate IR in reinforcing oil well and fracturing process.Due to well site bad environments, greasy dirt muddy water is many, the objective factors such as grout etc. are denuded for general flowmeter, seriously corroded, and the utility model has following advantage: not direct contact liq, avoids abrasion, corrosion completely.Utilize the Hall effect of sensor 4, antijamming capability is strong, by large pump jig frequency and plunger case volume calculations discharge capacity, ensures accuracy.Magnetic sheet volume is little, lightweight easy for installation, without the need to carrying out dynamic balance running to shaft coupling after installation.The utility model volume is little, and it is convenient to carry, powerful, can realize the storage of the setting of parameter, instantaneous delivery collection, integrated flow calculating, working time statistics, data, and be realized the transmission of data by USB interface or teletransmission.
accompanying drawing illustrates:
Fig. 1 is the utility model structural drawing.
Fig. 2 is the utility model circuit diagram.
embodiment:
Ram pump 1 coordinates with motor rotary shaft 2 transmission, motor rotary shaft is fixed a permanent magnet 3, Hall element 4 is positioned opposite with permanent magnet, there is space between the two, the output of Hall element is connected with signal processing circuit, signal processing circuit is by optical coupling isolation circuit, timer, composition, the data that Hall element is measured, by optical coupling isolation circuit process, be converted into the pulse signal that timer can identify, and the high frequency interference of energy isolating exterior, the cycle that tacho-pulse measured by timer outputs to single-chip microcomputer, the discharge capacity of single-chip microcomputer unit of account jig frequency, just can determine the flow of ram pump 1, the data measured are sent to display by serial communication module, and be sent in wireless launcher, by rotating speed, data on flows carries out long-distance transmissions in monitoring computer.
Hall element is NJK-5002A, and single-chip microcomputer is STM32F103.
Principle of work: positive displacement pump rotates under the drive of motor rotary shaft, realize the discharge of slurries as a form of gel, motor rotary shaft is fixed a permanent magnet, Hall element and permanent magnet positioned opposite, there is space between the two, in the course of the work, motor rotary shaft often rotates a circle, Hall element will be responded to a pulse, the recurrence interval that signal processing circuit collection induces, both motor rotation velocity can be obtained, in the positive displacement pump course of work, pump capacity=jig frequency x discharge capacity/jig frequency, and jig frequency is relevant with motor speed, therefore, by measuring motor rotary shaft rotating speed, can complete and positive displacement pump capacity is measured.After measurement completes, can display display measurement data be passed through, also by wireless launcher, data can be sent in monitoring computer.
Rotating speed-jig frequency-instantaneous displacement-accumulative discharge capacity relation
Jig frequency=pinion shaft rotating speed/ratio of gear
Instantaneous displacement=cylinder sectional area × 3 × stroke × jig frequency,
Accumulative discharge capacity=instantaneous displacement × time
Pinion wheel rotating speed is measuring amount, and ratio of gear is determined by gear, and cylinder sectional area and stroke are that the design parameter of ram pump 1 can be tabled look-up acquisition.
Rotating speed-jig frequency-instantaneous displacement-accumulative discharge capacity relation
Jig frequency
Wherein
for pinion shaft rotating speed,
for ratio of gear,
Instantaneous displacement
Wherein
for cylinder sectional area,
for stroke,
Accumulative discharge capacity
,
Wherein
for the time.
Claims (1)
1. positive displacement pump flowmeter, it is characterized in that ram pump (1) coordinates with motor rotary shaft (2) transmission, motor rotary shaft is fixed a permanent magnet (3), Hall element (4) is positioned opposite with permanent magnet, there is space between the two, the output of Hall element is connected with signal processing circuit, signal processing circuit is by optical coupling isolation circuit, timer forms, the data that Hall element is measured, by optical coupling isolation circuit process, be converted into the pulse signal that timer can identify, and the high frequency interference of energy isolating exterior, the cycle that tacho-pulse measured by timer outputs to single-chip microcomputer, the discharge capacity of single-chip microcomputer unit of account jig frequency, just can determine the flow of ram pump (1), the data measured are sent to display by serial communication module, and be sent in wireless launcher, by rotating speed, data on flows carries out long-distance transmissions in monitoring computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493758.3U CN204758054U (en) | 2015-07-10 | 2015-07-10 | Positive -displacement pump flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520493758.3U CN204758054U (en) | 2015-07-10 | 2015-07-10 | Positive -displacement pump flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204758054U true CN204758054U (en) | 2015-11-11 |
Family
ID=54472753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520493758.3U Expired - Fee Related CN204758054U (en) | 2015-07-10 | 2015-07-10 | Positive -displacement pump flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204758054U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964722A (en) * | 2015-07-10 | 2015-10-07 | 成都金陵能源装备有限公司 | Positive displacement pump flowmeter |
| CN113391088A (en) * | 2020-03-12 | 2021-09-14 | 常州赛乐医疗技术有限公司 | Portable device for detecting torque and rotating speed of dental equipment |
-
2015
- 2015-07-10 CN CN201520493758.3U patent/CN204758054U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964722A (en) * | 2015-07-10 | 2015-10-07 | 成都金陵能源装备有限公司 | Positive displacement pump flowmeter |
| CN113391088A (en) * | 2020-03-12 | 2021-09-14 | 常州赛乐医疗技术有限公司 | Portable device for detecting torque and rotating speed of dental equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 |