CN201318975Y - Device used for measuring static starting pressure of liquid in microscale circular tube - Google Patents
Device used for measuring static starting pressure of liquid in microscale circular tube Download PDFInfo
- Publication number
- CN201318975Y CN201318975Y CNU2008201710760U CN200820171076U CN201318975Y CN 201318975 Y CN201318975 Y CN 201318975Y CN U2008201710760 U CNU2008201710760 U CN U2008201710760U CN 200820171076 U CN200820171076 U CN 200820171076U CN 201318975 Y CN201318975 Y CN 201318975Y
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- liquid
- starting pressure
- static starting
- microscale
- measuring
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Abstract
The utility model relates to a device used for measuring static starting pressure of liquid in a microcale circular tube, which is primarily used to measure the static starting pressure of the liquid in microscale circular tubes made of different materials to obtain the static starting pressure parameters of the liquid in the microscale circular tubes so as to analyze the microscale effect of the liquid. The device comprises a measuring container and is characterized in that the measuring container is a U-shaped tube and the bent connecting part of the U-shaped tube is a micro pipe, and the straight parts at the two sides are capillary tubes. The device is simple in structure and can conveniently and quickly detect the starting pressure of the liquid under microscale and is low in detection cost. Therefore, the device is an economical and practical device for measuring static starting pressure of liquid in microcale circular tubes.
Description
Technical field
The utility model relates to a kind of device of measuring the static starting pressure of liquid in the micro-meter scale pipe.Be mainly used in the static starting pressure of liquid in the pipe of measuring different materials under the micro-meter scale, its effect is to obtain under the micro-meter scale the static starting pressure parameter of liquid in the pipe, is used to analyze the microscale effect of liquid.
Background technology
Along with the development of MEMS (micro electro mechanical system), existence and the mobile units of fluid under micro-meter scale (hydraulic diameter is less than 1mm) is more and more.Studies show that: fluid is under micro-meter scale, the surface to volume ratio of fluid, be far longer than macro-scale (hydraulic diameter is greater than 1mm), therefore liquid has many character that are different from macro-scale under micro-meter scale, is difficult to measure the static starting pressure parameter of liquid liquid in the micro-meter scale pipe with conventional device.
Summary of the invention
At above problem, the purpose of this utility model provides the device of the static starting pressure of liquid in a kind of measurement micro-meter scale pipe simple in structure.
A kind of device of measuring the static starting pressure of liquid in the micro-meter scale pipe comprises measuring vessel, and it is characterized in that: measuring vessel is a U-shaped pipe, and the crooked coupling part of U-shaped pipe is a microtubule, and the stretched on both sides partly is a kapillary.
The purpose of this utility model partly is that U-shaped pipe measuring vessel capillaceous is realized by crooked coupling part microtubule, stretched.Not only have advantage of simple structure, also have can simple and convenient ground the starting pressure of tracer liquid under micro-meter scale, detect the very low advantage of cost, be the device of liquid static state starting pressure in a kind of economical and practical measurement micro-meter scale pipe.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is an another kind of structural representation of the present utility model.
Among the figure: kapillary 1, microtubule 2, liquid 3, scale mark 4, adjusting leg 5, mounting 6, air level 7.
Embodiment
Describe in detail below in conjunction with drawings and Examples:
Fig. 1 is a kind of device of measuring the static starting pressure of liquid in the micro-meter scale pipe of the utility model.Mainly comprise measuring vessel, it is characterized in that: measuring vessel is a U-shaped pipe, and the crooked coupling part of U-shaped pipe is a microtubule 2, and the stretched on both sides partly is a kapillary 1.Device size is generally the 200mm height, and 50mm is wide, can suitably enlarge or dwindles according to concrete use object.
Fig. 2 is an another kind of structural representation of the present utility model.Put and put for making the U-shaped tubular container be convenient to level, also comprise the mounting 6 of settling the U-shaped pipe, establish the adjusting leg 5 that is contained in mounting 6 bottoms and establish the air level 7 that is contained on the mounting; Promptly utilize mounting 6 to settle the U-shaped tubular container, utilize and regulate the levelness that leg 5 is regulated mounting 6, utilize air level 7 to detect mounting 6 and whether lay level.For the ease of directly reading the height of intraluminal fluid face, on mounting 6, be provided with scale mark 4.Scale mark 4 can be the scale mark that is set directly on the mounting 6, also establishes the stainless steel milimeter scale that is contained on the mounting 6, or scale mark such as organic glass milimeter scale.Obviously, scale mark 4 also can be set directly on the U-shaped pipe, promptly is provided with scale mark 4 on the U-shaped pipe.
End when experimental liquid slowly being injected into " U " shape pipe with syringe has liquid to overflow up to injection side; Stop water filling then, wait for that water flows to the other end of " U " shape pipe, wait for behind fluid stable (be extremely several hours a few minutes stabilization time, and microtubule diameter is more little, and stabilization time is long more) that through reading the reading that " U " shape is managed the scale at two ends, its difference is a h rice; The starting pressure of certain liquid in this pipe of then being asked is: ρ gh.ρ is a density of liquid, kg/m
3G is local acceleration of gravity, N/s
2H is the discrepancy in elevation at fluid " U " shape pipe two ends when static, m.
Claims (6)
1, a kind of device of measuring the static starting pressure of liquid in the micro-meter scale pipe comprises measuring vessel, and it is characterized in that: measuring vessel is a U-shaped pipe, and the crooked coupling part of U-shaped pipe is microtubule (2), and the stretched on both sides partly is a kapillary (1).
2, the device of the static starting pressure of liquid in the measurement micro-meter scale pipe according to claim 1, it is characterized in that: the internal diameter of microtubule (2) is 2 microns to 500 microns, and the internal diameter of kapillary (1) is at 1 millimeter to 2 millimeters.
3, the device of the static starting pressure of liquid in the measurement micro-meter scale pipe according to claim 1 and 2 is characterized in that: also comprise the mounting (6) of settling the U-shaped pipe, establish the adjusting leg (5) that is contained in mounting (6) bottom and establish the air level (7) that is contained on the mounting.
4, the device of the static starting pressure of liquid in the measurement micro-meter scale pipe according to claim 3 is characterized in that: be provided with scale mark (4) on mounting (6).
5, the device of the static starting pressure of liquid in the measurement micro-meter scale pipe according to claim 3 is characterized in that: be provided with scale mark (4) on the U-shaped pipe.
6, the device of the static starting pressure of liquid in the measurement micro-meter scale pipe according to claim 1 and 2 is characterized in that: be provided with scale mark (4) on the U-shaped pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201710760U CN201318975Y (en) | 2008-12-15 | 2008-12-15 | Device used for measuring static starting pressure of liquid in microscale circular tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201710760U CN201318975Y (en) | 2008-12-15 | 2008-12-15 | Device used for measuring static starting pressure of liquid in microscale circular tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318975Y true CN201318975Y (en) | 2009-09-30 |
Family
ID=41197739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201710760U Expired - Fee Related CN201318975Y (en) | 2008-12-15 | 2008-12-15 | Device used for measuring static starting pressure of liquid in microscale circular tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318975Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111212A (en) * | 2014-07-01 | 2014-10-22 | 清华大学 | Apparatus and method for measuring starting pressure of liquid in micropipe based on particle tracing method |
| CN106324212A (en) * | 2015-06-19 | 2017-01-11 | 中国石油化工股份有限公司 | Quick testing device and method of rock core gas start pressure |
-
2008
- 2008-12-15 CN CNU2008201710760U patent/CN201318975Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111212A (en) * | 2014-07-01 | 2014-10-22 | 清华大学 | Apparatus and method for measuring starting pressure of liquid in micropipe based on particle tracing method |
| CN104111212B (en) * | 2014-07-01 | 2016-08-17 | 清华大学 | The device and method of liquid activated pressure in micro-pipe is measured based on Particle |
| CN106324212A (en) * | 2015-06-19 | 2017-01-11 | 中国石油化工股份有限公司 | Quick testing device and method of rock core gas start pressure |
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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: 20090930 Termination date: 20111215 |