CN105865530B - A kind of piston type continuous temperature measurement pressure tester of tube fluid - Google Patents
A kind of piston type continuous temperature measurement pressure tester of tube fluid Download PDFInfo
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- CN105865530B CN105865530B CN201610387571.4A CN201610387571A CN105865530B CN 105865530 B CN105865530 B CN 105865530B CN 201610387571 A CN201610387571 A CN 201610387571A CN 105865530 B CN105865530 B CN 105865530B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Present invention is disclosed a kind of piston type continuous temperature measurement pressure tester of tube fluid, it includes：Oil pump, first hydraulic cylinder, second hydraulic cylinder, DATA REASONING unit and data acquisition unit.The apparatus structure is simple, drives first hydraulic cylinder and second hydraulic cylinder to carry out axial stretching motion using oil pump, first hydraulic cylinder and second hydraulic cylinder drive DATA REASONING unit, realize axial thermometric pressure measurement；Hydraulic cylinder has corrosion-and high-temp-resistant advantage, and service life is grown, and system operation maintenance cost is low；DATA REASONING unit is completely in sealed environment all the time, and whole system is completely isolated with the external world, no leakage.
Description
Technical field
The present invention relates to the piston type continuous temperature measurement of fluid flow state e measurement technology, more particularly to a kind of tube fluid to survey
Pressure device.
Background technology
In injector, hydraulic container, even in the research of the fluid such as common pipe, the monitoring of fluid flow state is to product
Manufacture and design, optimize structure, and control relevant parameter all of crucial importance.
Traditional monitoring method substantially has following four：
The first is to obtain the related datas such as temperature, pressure in the inlet and outlet for measuring container, and this method is pervasive and easy,
But surveyed data have significant limitation, it is impossible to check the fluid parameter of container；
Second is to open up aperture on container or pipe, to facilitate arrangement measuring instrument, also can accurately be obtained
Required data, but the measurement point that the method is arranged is extremely limited, and also such measurement point is more, the flowing shadow of convection body
Sound is bigger, and to the fluid of the flow regimes such as phase transformation, turbulent flow, shock wave be present, fixed several measurement points are difficult to reflect fluid
Real Flow Field situation, it is unfavorable that result is produced；
The third is that also some when measuring the pressure of fluid in container, use internally axial arranged capillary, opens up
Pressure port, mobile pressure pipe carry out the method that timesharing measures axial steady state pressure, this method can because the problem of high pressure leakage and
Cause the shortcomings of error increase, dynamic response time are long and pressure tester is huge.
The content of the invention
It is an object of the invention to for drawbacks described above of the prior art, there is provided a kind of piston type of tube fluid is continuous
Thermometric pressure tester, the apparatus structure is simple, easy to operate, ensures the thermometric pressure measurement of axial location most possibly.
For achieving the above object, present invention employs following technical scheme：A kind of piston type of tube fluid is continuous
Thermometric pressure tester, it includes：Oil pump, first hydraulic cylinder, second hydraulic cylinder, DATA REASONING unit and data acquisition unit,
Wherein, the first hydraulic cylinder and the second hydraulic cylinder connect with the oil pump respectively, and are separately mounted to testing tube
Both ends, oil pump can control the flexible order of first hydraulic cylinder and second hydraulic cylinder opposite；The DATA REASONING unit includes capillary
Pressure pipe, outlet threeway, pressure acquisition devices and Temperature sampler, capillary pressure pipe are arranged in testing tube, and the first hydraulic pressure
Cylinder connects with second hydraulic cylinder, is provided with pressure tappings, and fluid can flow into from pressure tappings；Threeway wherein one end insertion is exported to survey
In test tube, connected with capillary pressure pipe；Pressure acquisition devices connect with the outlet threeway other end, for measuring Fluid pressure；Temperature
Collector is arranged in capillary pressure pipe, for measuring fluid temperature (F.T.)；The data acquisition unit and pressure acquisition devices and temperature
Collector is electrically connected with, for receiving pressure signal and temperature signal.
In addition, the present invention also provides following attached technical scheme：
The first hydraulic cylinder includes first annular seal space, first piston, First piston bar, and the rear end of first annular seal space passes through
Oil pipe is connected with oil pump, and First piston bar is inserted from testing tube wherein one end；The second hydraulic cylinder includes the second annular seal space, the
Two pistons, second piston bar, the rear end of the second annular seal space are connected by oil pipe with oil pump, and front end passes through oil pipe and first annular seal space
Front end connection, second piston bar from the testing tube other end insert.
The first hydraulic cylinder and the second hydraulic cylinder are connected with two end threads of testing tube respectively.
Wherein one end sealing of the capillary pressure pipe, and be fixedly connected with the second piston bar；Another end opening, and
Connected with the outlet threeway；Middle part is wrapped in the First piston bar (function of playing buffering).
The leading section of the First piston bar is provided with meander-like neck, and a portion of the capillary pressure pipe is caught in
In neck.
The Temperature sampler is thermocouple, and the thermocouple includes probe and lead, and probe is arranged on the capillary pressure
In pipe, and close to the pressure tappings, lead is extended to outside testing tube through the capillary pressure pipe and the outlet threeway, with institute
State data acquisition unit electric connection.
The pressure acquisition devices are pressure gauge.
The piston type continuous temperature measurement pressure tester of the tube fluid also includes micro-control unit, the micro-control unit and institute
State oil pump electric connection, pump oil direction and pump oil speed for control oil pump.
The micro-control unit is made up of direction drive control module and Frequency Drive Control module, direction drive control mould
Block is used for control oil pump and is used for toward first hydraulic cylinder or second hydraulic cylinder pump oil, Frequency Drive Control module to oil pump transmission frequency
Order, change the pump oil speed of oil pump.
Compared to prior art, advantage of the invention is that：The piston type continuous temperature measurement for disclosing a kind of tube fluid is surveyed
Pressure device, it includes：Oil pump, first hydraulic cylinder, second hydraulic cylinder, DATA REASONING unit and data acquisition unit, the device
It is simple in construction, drive first hydraulic cylinder and second hydraulic cylinder to carry out axial stretching motion, first hydraulic cylinder and second using oil pump
Hydraulic cylinder drives DATA REASONING unit, realizes axial thermometric pressure measurement；Hydraulic cylinder has corrosion-and high-temp-resistant advantage, service life
Long, system operation maintenance cost is low；DATA REASONING unit is completely in sealed environment all the time, whole system with it is extraneous completely every
From no leakage.
Brief description of the drawings
Fig. 1 is the structural representation of the piston type continuous temperature measurement pressure tester of the tube fluid of the present invention.
Fig. 2 is the structural representation of oil pump in Fig. 1, first hydraulic cylinder, second hydraulic cylinder and testing tube.
Fig. 3 is the partial cutaway schematic view of capillary pressure pipe, outlet threeway and pressure acquisition devices.
Fig. 4 is the enlarged drawing of a points in Fig. 2.
Fig. 5 is the enlarged drawing of b points in Fig. 2.
Fig. 6 is the enlarged drawing of c points in Fig. 2.
Embodiment
Technical solution of the present invention is further non-limitingly described in detail below in conjunction with preferred embodiment and its accompanying drawing.
Reference picture 1, the piston type continuous temperature measurement pressure tester of tube fluid mainly include power supply 1, DATA REASONING unit 2,
Data acquisition unit 3, micro-control unit 4, oil pump 5, first hydraulic cylinder 6 and second hydraulic cylinder 7.Wherein, power supply 1 respectively with data
Collecting unit 3, micro-control unit 4, oil pump 5 are electrically connected with, and electric energy is provided for it；DATA REASONING unit 2 is used to measure testing tube
The temperature and pressure of fluid in 100；Data acquisition unit 3 be used for gathered data measuring unit 2 measured by temperature signal and
Pressure signal；Micro-control unit 4 is electrically connected with oil pump 5, pump oil direction and pump oil speed for control oil pump 5；Oil pump 5 with
First hydraulic cylinder 6 and second hydraulic cylinder 7 connect, both stretching motions of driving, and both telescopic direction are opposite；First hydraulic pressure
Cylinder 6 and second hydraulic cylinder 7 are connected with DATA REASONING unit 2, drive DATA REASONING unit 2 to realize axially consecutive thermometric pressure measurement.
Further combined with Fig. 2：
First hydraulic cylinder 6 includes first annular seal space 61, first piston 62, First piston bar 63.Before first annular seal space 61
End and rear end are respectively provided with into oil discharge passage, and its rear end is connected by entering oil discharge passage and oil pipe with oil pump 5, the liquid of oil pump 5
Force feed is pumped into the rear end of first annular seal space 61, promotes first piston 62 and First piston bar 63 to travel forward.First piston 62
It is fixedly connected with First piston bar 63, and First piston bar 63 is inserted in testing tube 100.During installation, first hydraulic cylinder 6 passes through
Wherein one end of testing tube 100 is threadably received in, can be seen that by Fig. 1 and Fig. 2, in the present embodiment, first hydraulic cylinder 6
Positioned at the left end of testing tube 100.
Second hydraulic cylinder 7 includes the second annular seal space 71, second piston 72, second piston bar 73.Before second annular seal space 71
End and rear end are respectively provided with into oil discharge passage, and its rear end is connected by entering oil discharge passage and oil pipe with oil pump 5, the liquid of oil pump 5
Force feed is pumped into the rear end of the second annular seal space 71, promotes second piston 72 and second piston bar 73 to travel forward；Second annular seal space
71 front end is connected by entering oil discharge passage and oil pipe with the front end of first annular seal space 61, and hydraulic oil can be in the He of first annular seal space 61
Circulated between second annular seal space 71.Second piston 72 is fixedly connected with second piston bar 73, and the insertion of second piston bar 73 is surveyed
In test tube 100, and it is coaxial with First piston bar 63.During installation, second hydraulic cylinder 7 is connected through a screw thread mode and is arranged on test
The other end of pipe 100, can be seen that by Fig. 1 and Fig. 2, and in the present embodiment, second hydraulic cylinder 7 is located at the right-hand member of testing tube 100.
Of course, oil pump 5 is connected with the front end of first annular seal space 61 and the front end of the second annular seal space 71 respectively by oil pipe,
The rear end of first annular seal space 61 is connected by oil pipe with the rear end of the second annular seal space 71, equally achievable first hydraulic cylinder 6 and the
The expanding-contracting action of two hydraulic cylinders 7 is opposite.
DATA REASONING unit 2 includes capillary pressure pipe 21, outlet threeway 22, pressure acquisition devices 23, Temperature sampler 24.Hair
Thin pressure pipe 21 is in hollow form, and its one end seals, another end opening, medium position setting pressure tappings 21a, in testing tube 100
Fluid can flow into from pressure tappings 21a.Reference picture 3, outlet threeway 22 are in T fonts, and its arrival end is inserted in testing tube 100, port
Connected with testing tube 100, outer wall and the palette of testing tube 100, capillary pressure pipe 21 insert from arrival end.Reference picture 3, pressure
Collector 23 connects with exporting one of port of export of threeway 22, and is electrically connected with each other with data acquisition unit 3, testing tube
Fluid in 100 is flowed into pressure acquisition devices 23 by capillary pressure pipe 21 and outlet threeway 22, the convection body of pressure acquisition devices 23
Pressure measures, and generates pressure signal, and give pressure signal to data acquisition unit 3.Reference picture 4, Temperature sampler 24
It is partially installed in capillary pressure pipe 21, and is electrically connected with each other with data acquisition unit 3, is mainly used in carrying out temperature survey,
Temperature signal is generated, and gives temperature signal to data acquisition unit 3.Temperature sampler 24 is thermocouple in the present embodiment, heat
There is galvanic couple probe 24a and lead 24b, probe 24a to pass through capillary pressure pipe 21 and outlet three close to pressure tappings 21a, lead 24b
Logical 22, finally it is electrically connected with data acquisition unit 3.
Reference picture 5, the leading section of First piston bar 63 are provided with the neck 63a of meander-like, and capillary pressure pipe 21 is wherein
A part is caught in neck 63a, and another part of capillary pressure pipe 21 is wrapped in First piston bar 63.Reference picture 6, capillary
Pressure pipe 21 seals one end and fixes the front end for being fastened on second piston bar 73.Once therefore First piston bar 63 and second piston bar
73 are axially moved, and capillary pressure pipe 21 is axially moved, and pressure acquisition devices 23 and Temperature sampler 24 can collect survey
The Fluid pressure and temperature of the axial direction of test tube 100.
Specific works step is：
1st, before starting working, the pressure tappings 21a for setting capillary pressure 21 first is located at the left end of testing tube 100, now, first
Piston 62 is close to the rear end of the first sealing cylinder 61, and second piston 72 is close to the front end of the second sealing cylinder 71.When power supply 1 exports electric energy
Afterwards, data acquisition unit 3, micro-control unit 4 and oil pump 5 are powered operation, micro-control unit 4 by Frequency Drive Control module 4a and
Direction drive control module 4b is formed, and it is forward direction to be preset in the drive control module 4b of direction toward first hydraulic cylinder 6 pump oil, toward the
The pump oil of two hydraulic cylinder 7 is reverse.During startup, direction drive control module 4b sends positive order to oil pump 5, and oil pump 5 receives just
To after order, i.e., toward first hydraulic cylinder 6 pump oil, at the same time, Frequency Drive Control module 4a to the transmission frequency order of oil pump 5,
Change pump oil speed after the receives frequency order of oil pump 5, reach reasonable request.After hydraulic oil is pumped into first hydraulic cylinder 6 by oil pump 5
End, first piston 62 travelled forward by hydraulic oil thrust, due to being wound with capillary pressure pipe 21 in First piston bar 63, therefore the
One piston rod 63 has buffering effect when moving forward suddenly.The hydraulic oil of the front end of first hydraulic cylinder 6 is extruded and flows into second hydraulic cylinder 7
Front end, second piston 72 moved backward by hydraulic oil thrust, and the hydraulic oil of the rear end of second hydraulic cylinder 7, which is extruded, flows into oil pump 5.
2nd, when pressure port 21a is in certain position, pressure acquisition devices 23 and Temperature sampler 24 measure what is put at this respectively
Pressure and temperature, and pressure signal and temperature signal are conveyed to data acquisition module 3, data acquisition module 3 obtains one group of institute
The pressure and temperature data needed.
3rd, oil pump 5 can be such that hydraulic oil is circulated with given speed according in the given pump oil order of the 1st step, so that
Two piston rods and pressure port 21a synchronous translationals, pressure and temperature data when reaching each fixed point are all recorded, until first
Piston 62 stops close to the front end of first hydraulic cylinder 6, and when no longer travelling forward, and now reaches the last site of Measurement channel 100.
4th, direction drive control module sends reverse order to oil pump 5 again, makes oil pump 5 toward the rear end pump of second hydraulic cylinder 7
Enter hydraulic oil, now, second piston bar 73 and First piston bar 63 pressure port 21a synchronous translationals, are reached per certain to left movement
Pressure and temperature data during point are recorded once again, until first piston 62 returns to the rear end of first hydraulic cylinder 6, that is, have been returned to
Initial point.
5th, after the completion of, power-off, finishing analysis data.If wanting to obtain more multigroup pressure and temperature data, can be driven by frequency conversion
Dynamic control module changes the pump oil speed of oil pump 5, or is carried out by direction drive control module 4b control oil pumps 5 repeatedly positive and negative
To pump oil.
In summary, the piston type continuous temperature measurement pressure tester of tube fluid of the invention has some following advantage：
1st, it is simple in construction, using oil pump toward pump oil in hydraulic cylinder, so as to drive piston and piston rod, realize axial movement；
2nd, traverse measurement unit is completely in sealed environment all the time, and one end of capillary pressure pipe is fully sealed, only another
Pipeline is drawn in one end, accomplishes that whole system is completely isolated with the external world, no leakage；
3rd, by traverse measurement method, it is not required to arrange multiple measurement points on Measurement channel, you can measure fluid in stable state
When mobility status, measurement structure simplifies, and the flow effect of convection body is small.
4th, e measurement technology is reliable, and for its results contrast close to the Real Flow Field state of internal flow, precision is high.
5th, hydraulic cylinder has corrosion-and high-temp-resistant advantage, and service life is grown, and system operation maintenance cost is low.
It is pointed out that the technical concepts and features of above-mentioned preferred embodiment only to illustrate the invention, its object is to
Allow person skilled in the art to understand present disclosure and implement according to this, the protection of the present invention can not be limited with this
Scope.Any equivalent change or modification in accordance with the spirit of the invention, it should all be included within the scope of the present invention.
Claims (9)
1. the piston type continuous temperature measurement pressure tester of a kind of tube fluid, it is characterised in that it includes：Oil pump, first hydraulic cylinder,
Second hydraulic cylinder, DATA REASONING unit and data acquisition unit, wherein,
The first hydraulic cylinder and the second hydraulic cylinder connect with the oil pump respectively, and are separately mounted to the two of testing tube
End, oil pump can control the expanding-contracting action of first hydraulic cylinder and second hydraulic cylinder opposite；
The DATA REASONING unit includes capillary pressure pipe, outlet threeway, pressure acquisition devices and Temperature sampler, capillary pressure pipe
It is arranged in testing tube, and is connected respectively with first hydraulic cylinder and second hydraulic cylinder, be provided with pressure tappings, fluid can
Flowed into from pressure tappings；Threeway is exported wherein in one end insertion testing tube, is connected with capillary pressure pipe；Pressure acquisition devices and outlet three
Logical other end connection, for measuring Fluid pressure；Temperature sampler is arranged in capillary pressure pipe, for measuring fluid temperature (F.T.)；
The data acquisition unit is electrically connected with pressure acquisition devices and Temperature sampler, for receiving pressure signal and temperature letter
Number.
2. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 1, it is characterised in that：Described first
Hydraulic cylinder includes first annular seal space, first piston, First piston bar, and the rear end of first annular seal space is connected by oil pipe and the oil pump
Logical, First piston bar is inserted from testing tube wherein one end；
The second hydraulic cylinder includes the second annular seal space, second piston, second piston bar, and the rear end of the second annular seal space passes through oil pipe
Connected with the oil pump, front end is connected by oil pipe with the front end of first annular seal space, and second piston bar is inserted from the testing tube other end
Enter.
3. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 2, it is characterised in that：Described first
Hydraulic cylinder and the second hydraulic cylinder are connected with two end threads of testing tube respectively.
4. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 2, it is characterised in that：The capillary
Wherein one end sealing of pressure pipe, and be fixedly connected with the second piston bar；Another end opening, and lead to the outlet three
It is logical；Middle part is wrapped in the First piston bar.
5. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 4, it is characterised in that：Described first
The leading section of piston rod is provided with meander-like neck, and a portion of the capillary pressure pipe is caught in neck.
6. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 1, it is characterised in that：The temperature
Collector is thermocouple, and the thermocouple includes probe and lead, and probe is arranged in the capillary pressure pipe, and is taken close to described
Mouth is pressed, lead is extended to outside testing tube through the capillary pressure pipe and the outlet threeway, with data acquisition unit electricity
Property connection.
7. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 1, it is characterised in that：The pressure
Collector is pressure gauge.
8. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 1, it is characterised in that it also includes
Micro-control unit, the micro-control unit are electrically connected with the oil pump, pump oil direction and pump oil speed for control oil pump.
9. the piston type continuous temperature measurement pressure tester of tube fluid according to claim 8, it is characterised in that：The micro-control
Unit processed is made up of direction drive control module and Frequency Drive Control module, and it is past that direction drive control module is used for control oil pump
First hydraulic cylinder or second hydraulic cylinder pump oil, Frequency Drive Control module are used for oil pump transmission frequency order, change oil pump
Pump oil speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610387571.4A CN105865530B (en) | 2016-06-03 | 2016-06-03 | A kind of piston type continuous temperature measurement pressure tester of tube fluid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610387571.4A CN105865530B (en) | 2016-06-03 | 2016-06-03 | A kind of piston type continuous temperature measurement pressure tester of tube fluid |
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| CN105865530A CN105865530A (en) | 2016-08-17 |
| CN105865530B true CN105865530B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| JPH10232152A (en) * | 1997-02-20 | 1998-09-02 | Yamatake Honeywell Co Ltd | Temperature detector of differential-pressure type flowmeter and protecting tube thereof |
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| CN1657882A (en) * | 1997-11-21 | 2005-08-24 | 三井金属矿业株式会社 | Flow rate sensor and flow rate measuring instrument |
| US7261002B1 (en) * | 1999-07-02 | 2007-08-28 | Cidra Corporation | Flow rate measurement for industrial sensing applications using unsteady pressures |
| CN201221986Y (en) * | 2008-06-02 | 2009-04-15 | 昆明理工大学 | Apparatus for measuring high pressure fluid temperature in tube |
| CN201795868U (en) * | 2010-08-12 | 2011-04-13 | 周玉林 | Temperature sensing device used for rapidly measuring fluid temperature in pipeline |
| CN103837255A (en) * | 2012-11-23 | 2014-06-04 | 贵阳铝镁设计研究院有限公司 | Measurement method and device for fluid medium temperatures in small pipes |
| CN204269147U (en) * | 2014-08-12 | 2015-04-15 | 湖北泽捷电子科技有限公司 | Pipeline fluid monitoring system |
| CN104568008A (en) * | 2015-01-15 | 2015-04-29 | 广西大学 | Axial temperature and pressure continuous measuring device for fluid in pipe |
-
2016
- 2016-06-03 CN CN201610387571.4A patent/CN105865530B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10232152A (en) * | 1997-02-20 | 1998-09-02 | Yamatake Honeywell Co Ltd | Temperature detector of differential-pressure type flowmeter and protecting tube thereof |
| CN1657882A (en) * | 1997-11-21 | 2005-08-24 | 三井金属矿业株式会社 | Flow rate sensor and flow rate measuring instrument |
| US7261002B1 (en) * | 1999-07-02 | 2007-08-28 | Cidra Corporation | Flow rate measurement for industrial sensing applications using unsteady pressures |
| CN2575634Y (en) * | 2002-10-28 | 2003-09-24 | 张力新 | Pressure & differential pressure synchronous indicating gauge |
| CN201221986Y (en) * | 2008-06-02 | 2009-04-15 | 昆明理工大学 | Apparatus for measuring high pressure fluid temperature in tube |
| CN201795868U (en) * | 2010-08-12 | 2011-04-13 | 周玉林 | Temperature sensing device used for rapidly measuring fluid temperature in pipeline |
| CN103837255A (en) * | 2012-11-23 | 2014-06-04 | 贵阳铝镁设计研究院有限公司 | Measurement method and device for fluid medium temperatures in small pipes |
| CN204269147U (en) * | 2014-08-12 | 2015-04-15 | 湖北泽捷电子科技有限公司 | Pipeline fluid monitoring system |
| CN104568008A (en) * | 2015-01-15 | 2015-04-29 | 广西大学 | Axial temperature and pressure continuous measuring device for fluid in pipe |
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Effective date of registration: 20220408 Address after: 541000 No. 1-3-4, yihuage, No. 7, Lingui Road, Xiangshan District, Guilin City, Guangxi Zhuang Autonomous Region Patentee after: GUILIN CHUNXIAO ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 530004 the Guangxi Zhuang Autonomous Region XiXiangTang Nanning University Road No. 100 Patentee before: GUANGXI University |
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