CN201060149Y - Liquid line flow resistance force testing apparatus - Google Patents
Liquid line flow resistance force testing apparatus Download PDFInfo
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- CN201060149Y CN201060149Y CNU2007201497873U CN200720149787U CN201060149Y CN 201060149 Y CN201060149 Y CN 201060149Y CN U2007201497873 U CNU2007201497873 U CN U2007201497873U CN 200720149787 U CN200720149787 U CN 200720149787U CN 201060149 Y CN201060149 Y CN 201060149Y
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- flow resistance
- resistance force
- detection device
- liquid line
- force detection
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Abstract
The utility model discloses a liquid pipe flow drag measuring device, which is applicable for estimating the drag-reduction effect of the drag-reduction agent. The utility model includes a set of liquid circulating unit and a measuring unit. The liquid circulating unit has a liquid storing tank and a circulating pipeline composed of a plurality of connecting pipelines and ball valves. A flexible pump and a transducer are arranged on the circulating pipeline, and a micro-differential manometer is arranged on the two ends of the measuring section of the pipe. The measuring unit is electrically connected with the transducer and the micro-differential manometer. The utility model adopts the flexible pump, the shearing strength of which is lower than the shearing strength of the centrifugal pump used in the prior art, and which is more applicable for estimating the drag-reduction effect. The utility model adopts the transducer to control the displacement of the pump, only measures the differential pressure, can simplify the measuring device and the operation procedure, can reduce the possible error of the measuring stage, and can improve the reliability of the result.
Description
Technical field:
The utility model relates to a kind of pick-up unit, and particularly a kind of being used for estimated the liquid line flow resistance force detection device that uses to the drag-reduction effect of drag reducer.
Background technology:
Drag reducer (drag reducing agents, DRAs) or claim that (drag reducingpolymers DRPs), is the macromolecular compound that is used to reduce fluid flow resistance to the drag reduction polymer.Studies show that, the DRAs of natural origin or synthetic all has resistance reducing performance, and its solution has viscoelasticity, under the situation of extremely low consumption (nanomole level), fluid flow in the pipeline can be increased to 3 times or more, so drag reducer is widely used in numerous areas.Behind water-soluble drag reducer injection blood, under the situation of extremely low consumption (nanomole level), can improve haemodynamics, the increase tissue perfusion of animal model.Drag reducer might play a role in the treatment of angiocardiopathy, haemorrhagic shock or kidney trouble etc.
Evaluation to the drag reduction usefulness of drag reducer need realize by special pick-up unit, and existing pick-up unit adopts centrifugal pump that the power of liquid flow is provided, and therefore DRAs is had the mechanical shearing effect, can quicken its degraded, therefore can influence the accuracy of detection; In addition, prior art is adopts pressure sensor and flowmeter in pipeline, measures two parameters of pressure and flow respectively, and operation steps is more, is easy to produce error.Existing pick-up unit is still waiting to improve.
The utility model content:
The purpose of this utility model is to provide a kind of liquid line flow resistance force detection device that can improve detection accuracy and confidence level, can carry out effective evaluation to the drag reduction usefulness of drag reducer.
A kind of liquid line flow resistance force detection device, comprise a cover liquid cycling element and a detecting unit, wherein, described liquid cycling element has the circulation line that fluid reservoir and a plurality of connecting tube and ball valve form, on circulation line, establish a flexible pump and a frequency converter, and install a little differential pressure gauge at measurement pipeline section two ends, described detecting unit is electrically connected with frequency converter and little differential pressure gauge.
The above liquid line flow resistance force detection device also comprises a shelf, and wherein flexible pump, frequency converter and reservoir are contained in the below of shelf, measures the top that pipeline section and little differential pressure gauge are installed in shelf.
Also comprise a flowmeter, flowmeter is installed on the connecting tube of shelf top.
The above liquid line flow resistance force detection device, described reservoir bottom has a drain, installs an emptying valve.
The above liquid line flow resistance force detection device, detecting unit comprise a data collection processor, a data output apparatus, and little differential pressure gauge, data collection processor, data output apparatus, frequency converter and flowmeter electronics link to each other.
The above liquid line flow resistance force detection device, described data collection processor are computing machine, and described data output apparatus is a display, and the pressure difference that little differential pressure gauge will be measured the pipeline section two ends sends computing machine to, and as calculated testing result is shown by display.
The above liquid line flow resistance force detection device, described data collection processor are computing machine, and described data output apparatus is a display, and computing machine is regulated the rotating speed of flexible pump by the control of conversion device.
The above liquid line flow resistance force detection device, described data collection processor is a computing machine, flowmeter transmits data on flows in real time and gives computing machine, and when this numerical value deflection computer was set numerical range, computing machine came fluid flow in the controlling plumbing fixtures by controlling a ball valve.
Adopt above-mentioned design, the utility model adopts flexible pump, and its shear resistance is low than the centrifugal pump that uses in the prior art, is more suitable for estimating drag-reduction effect; The utility model device adopts the Frequency Converter Control pump capacity, only measures differential pressure, can simplify pick-up unit and operation steps, reduces measurement links and possible error, improves result's confidence level.
Description of drawings:
Fig. 1 forms synoptic diagram for the utility model structure.
Fig. 2 is that detecting unit connects block diagram in the utility model.
Fig. 3 detects the drag-reduction effect figure of a certain drag reducer for adopting the utility model device.
Embodiment:
Referring to illustrated in figures 1 and 2, the utility model liquid line flow resistance force detection device comprises a cover liquid cycling element and a detecting unit, wherein:
The liquid cycling element comprises a reservoir 11, one flexible pump 12, a frequency converter that links to each other with flexible pump 12 13, a measurement pipeline section 14, one little differential pressure gauge 15, some ball valves 16 and some connecting tubes and pipe fitting 17, also can select in pipeline and adorn a flowmeter 18.Package unit is installed on the small-sized shelf, and roller can be installed as required in its bottom, so that move; Wherein flexible pump 12, frequency converter 13 and reservoir 11 are contained in the below of shelf, reservoir 11 bottom design drain, by emptying valve 19 control, so that the emptying of pipeline and cleaning; Measure pipeline section 14 and little differential pressure gauge 15 and be installed in the top of shelf so that observe and measure, the two ends perforate of measuring pipeline section 14 connects little differential pressure gauge 15; Under the situation of choosing dress flowmeter 18, flowmeter 18 is installed on the main connecting tube 17 so that the device flow is detected in real time.
Detecting unit comprises a data collection processor 21 (as computing machine), a data output apparatus 22 (as display), and, little differential pressure gauge 15, data collection processor 21, data output apparatus 22, frequency converter 13, flowmeter 18 equal circuit link to each other and form detecting unit, on the one hand, the pressure difference that little differential pressure gauge 15 will be measured pipeline section 14 two ends sends computing machine to, differential pressure signal can pass through the computer real-time continuous acquisition, and as calculated testing result is shown by display; On the other hand, computing machine is regulated the rotating speed of flexible pump 12 by control of conversion device 13, thus the flow of liquid (can adopt weight method to measure) in the pilot piping; The mode of another Control Flow, realize by flowmeter 18: flowmeter 18 transmits datas on flows in real time, and when this numerical value deflection computer was set numerical range, computing machine came fluid flow in the controlling plumbing fixtures by controlling a ball valve 16.
Concrete, in concrete enforcement, optional in order to following equipment:
Flexible pump 12, rated discharge 20L/min, about 15 meters of rated head; Frequency converter 13, the about 0.5～1kW of power; Little differential pressure gauge 15, range＜100kPa; Flowmeter 18, the choosing dress; Reservoir 11,1～2L, organic glass or PVC material are made, interior dress circulation fluid such as physiological saline or simulate blood; Measure pipeline section 14, about 1000mm is long, the pipe of internal diameter 5mm; Connecting tube and pipe fitting 17 are made by organic glass, PVC or other material; Ball valve/cock 16 is made by organic glass or PVC material; Shelf is preferably the fixed angles steelframe; Data collection processor 21 is integrated integrated circuit board or acquisition module, is loaded in the computing machine; Data output apparatus 22 is display; Circuit power can be 24V direct supply (about 0.5A) in addition.
Adopt this device to carry out the mensuration process:
Step 1: in reservoir 11, put into circulation fluid physiological saline, the ball valve of opening on the circulation line 17 16 makes full of liquid in the pipeline, adjusting frequency converter 13 makes flexible pump 12 reach the flow of setting, stable circulation is after a period of time, data collection processor 21 reads the pressure difference value at test pipeline section 14 two ends that little differential pressure gauge 15 records, by data output apparatus 22 outputs.Thereby change the flow of flexible pump 12 by the frequency that computing machine changes frequency converter 13, be determined at the differential pressure value under this flow.
Step 2: when drag reducer is tested, test substance and circulation fluid physiological saline are put into another same reservoir 11, insert in this device.Open ball valve 16 on the circulation line 17 and make and be full of in the pipeline with the solution of test substance as solute, the differential pressure value under the different flow is measured in the subsequent operation in the repeating step one.
Step 3: test substance solution and physiological saline (reference substance) measured differential pressure value under different flow relatively, come to determine the resistance reducing performance of test substance in proper order, be starkly lower than the physiological saline pressure difference as this solution pressure difference, illustrate that then this test substance has resistance reducing performance.
The above-mentioned physiological saline that uses is circulation fluid, measure polyglycol drag reducer resistance reducing performance result referring to Fig. 3, illustrate that pressure increases with flow, under same traffic, after adding drag reducer in the physiological saline pressure is reduced, illustrate that this drag reducer has drag-reduction effect.
Claims (8)
1. liquid line flow resistance force detection device, comprise a cover liquid cycling element and a detecting unit, it is characterized in that, described liquid cycling element has the circulation line that fluid reservoir and a plurality of connecting tube and ball valve form, on circulation line, establish a flexible pump and a frequency converter, and install a little differential pressure gauge at measurement pipeline section two ends, described detecting unit is electrically connected with frequency converter and little differential pressure gauge.
2. according to the described liquid line flow resistance force detection device of claim 1, it is characterized in that also comprise a shelf, wherein flexible pump, frequency converter and reservoir are contained in the below of shelf, measure the top that pipeline section and little differential pressure gauge are installed in shelf.
3. according to the described liquid line flow resistance force detection device of claim 1, it is characterized in that, also comprise a flowmeter, flowmeter is installed on the connecting tube of shelf top.
4. according to the described liquid line flow resistance force detection device of claim 1, it is characterized in that described reservoir bottom has a drain, installs an emptying valve.
5. according to the arbitrary described liquid line flow resistance force detection device of claim 1 to 4, it is characterized in that, detecting unit comprises a data collection processor, a data output apparatus, and little differential pressure gauge, data collection processor, data output apparatus, frequency converter and flowmeter electronics link to each other.
6. according to the described liquid line flow resistance force detection device of claim 5, it is characterized in that, described data collection processor is a computing machine, described data output apparatus is a display, the pressure difference that little differential pressure gauge will be measured the pipeline section two ends sends computing machine to, and as calculated testing result is shown by display.
7. according to the described liquid line flow resistance force detection device of claim 5, it is characterized in that described data collection processor is a computing machine, described data output apparatus is a display, and computing machine is regulated the rotating speed of flexible pump by the control of conversion device.
8. according to the described liquid line flow resistance force detection device of claim 5, it is characterized in that, described data collection processor is a computing machine, flowmeter transmits data on flows in real time and gives computing machine, when this numerical value deflection computer was set numerical range, computing machine came fluid flow in the controlling plumbing fixtures by controlling a ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497873U CN201060149Y (en) | 2007-06-22 | 2007-06-22 | Liquid line flow resistance force testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201497873U CN201060149Y (en) | 2007-06-22 | 2007-06-22 | Liquid line flow resistance force testing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060149Y true CN201060149Y (en) | 2008-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201497873U Expired - Fee Related CN201060149Y (en) | 2007-06-22 | 2007-06-22 | Liquid line flow resistance force testing apparatus |
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| CN (1) | CN201060149Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177379A (en) * | 2008-10-08 | 2011-09-07 | 弗洛申公司 | A method of forming a flow restriction in a fluid communication system |
| CN103487099A (en) * | 2013-09-10 | 2014-01-01 | 温州大学 | Online detection method of small flow based on parameter reverse method |
| CN105203295A (en) * | 2014-06-20 | 2015-12-30 | 中国石油化工股份有限公司 | Measuring device and method for measuring friction resistance of fracturing fluid |
| CN105547661A (en) * | 2014-10-31 | 2016-05-04 | 北京宇航系统工程研究所 | Conveying system flow resistance matching acceptance test apparatus and test method thereof |
| CN106441797A (en) * | 2016-08-25 | 2017-02-22 | 中国电子科技集团公司第十研究所 | Automatic cold plate flow resistance testing system |
| CN107727166A (en) * | 2017-11-22 | 2018-02-23 | 中国第汽车股份有限公司 | A kind of automobile power cell bag internal cooling system fluid flow method of testing |
-
2007
- 2007-06-22 CN CNU2007201497873U patent/CN201060149Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102177379A (en) * | 2008-10-08 | 2011-09-07 | 弗洛申公司 | A method of forming a flow restriction in a fluid communication system |
| CN102177379B (en) * | 2008-10-08 | 2013-11-06 | 弗洛申公司 | A method of forming a flow restriction in a fluid communication system |
| CN103487099A (en) * | 2013-09-10 | 2014-01-01 | 温州大学 | Online detection method of small flow based on parameter reverse method |
| CN103487099B (en) * | 2013-09-10 | 2016-04-27 | 温州大学 | A kind of low discharge online test method based on parameter reverse method |
| CN105203295A (en) * | 2014-06-20 | 2015-12-30 | 中国石油化工股份有限公司 | Measuring device and method for measuring friction resistance of fracturing fluid |
| CN105547661A (en) * | 2014-10-31 | 2016-05-04 | 北京宇航系统工程研究所 | Conveying system flow resistance matching acceptance test apparatus and test method thereof |
| CN106441797A (en) * | 2016-08-25 | 2017-02-22 | 中国电子科技集团公司第十研究所 | Automatic cold plate flow resistance testing system |
| CN106441797B (en) * | 2016-08-25 | 2019-01-08 | 中国电子科技集团公司第十研究所 | The automatic flow resistance test macro of cold plate |
| CN107727166A (en) * | 2017-11-22 | 2018-02-23 | 中国第汽车股份有限公司 | A kind of automobile power cell bag internal cooling system fluid flow method of testing |
| CN107727166B (en) * | 2017-11-22 | 2019-07-12 | 中国第一汽车股份有限公司 | A kind of automobile power cell packet internal cooling system fluid flow test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20120622 |