CN102759427A - Visualized pressure measuring device for porous media filling structure - Google Patents
Visualized pressure measuring device for porous media filling structure Download PDFInfo
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- CN102759427A CN102759427A CN2012102430575A CN201210243057A CN102759427A CN 102759427 A CN102759427 A CN 102759427A CN 2012102430575 A CN2012102430575 A CN 2012102430575A CN 201210243057 A CN201210243057 A CN 201210243057A CN 102759427 A CN102759427 A CN 102759427A
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Abstract
The invention discloses a visualized pressure measuring device for a porous media filling structure. The visualized pressure measuring device comprises an organic glass pipe, an upper and a lower organic glass flange, an upper and a lower pore plate, an upper and a lower stainless steel wire net and pressure measuring ring, wherein the pore plates are evenly provided with 19 unidiameter pores, and fluid flows in or out of an organic glass pipe section through the pores; the upper and lower stainless steel wire nets are respectively arranged in the upper and lower pore plates; six pressure measuring rings are arranged at different heights of the outer wall of the organic glass pipe, and a pressure tapping hole is arranged on the wall surface of the organic glass pipe in each pressure measuring ring; four gas distribution holes are evenly distributed above the pressure measuring rings and sealed by nylon screws; pressure measuring ring nozzles are arranged on the side surfaces of the pressure measuring rings, and are connected with a pressure (pressure difference) sensor sold in the market by a pressure measuring hose so as to measure the pressure value at the height or pressure difference value at two different heights. The device has the characteristics of being simple in design, visual for tests, capable of freely changing porous media parameters, multiple for measuring points, and good in measuring effect.
Description
Technical field
The present invention relates to a kind of porous medium pressure measurement technology, particularly a kind of porous medium interstitital texture visual pressure measurement mechanism.
Background technology
The skeleton that porous medium is made up of solid matter and be separated into the medium that a large amount of intensive slight void in groups constitute by skeleton.Occurring in nature is being contained rock and soil of coal, oil, rock gas etc. and is all being belonged to porous medium.In the nuclear energy field, HTGR and overcritical water-water reactor in the 4th generation reactor all adopt the spheric fuel element accumulation mode, belong to the category of porous medium.Numerous in recent years scholars have carried out a large amount of deep experimental studies to porous media model, and a kind of key property that pressure flows as fluid, it is measured accurately is indispensable.
Tonometric basic functional principle be with commercially available pressure transducer as the fundamental measurement element, the pressure that produces when fluid is flowed causes pressure transducer through pressure guiding pipe, produces the pressure reading value.
For example, Chinese patent 201010557354 provides a kind of measuring method and device of porous medium volume of voids variable quantity, and it comprises voltage regulator controllers, upstream and downstream operation valve and atmospheric valve.This device and measuring method are simple to operate, convenient reading, stable performance, are applicable to the measurement quick and precisely of porous media material volume of voids wide variation under the complex pressure change condition.But this device can not carry out the measurement of pressure, is not suitable in experiment and carries out middle use.
And for example; Chinese patent 200410004536 provides a kind of seism-induced pore water pressure force measuring method; It as the fundamental measurement element, installs a capping of being processed by hard material with commercially available pressure transducer additional on pressure transducer, this capping is buckled in the inductive probe cover of pressure transducer in the space; This space is in communication with the outside through the through hole that several that are provided with in the capping have suitable aperture; The pressure transducer that will have capping during use is put into the soil body to be measured, and the pore water in the soil body promptly can begin to measure after being full of space, inductive probe place.This design can be widely used in the various sand in laboratory, native dynamic mechanical behavior research work, and is easy to operate.Shortcoming is: pressure survey can not be carried out to fluid in (1), only can measure to solid, can't realize sealing; (2) can not carry out visualization measurement according to the actual experiment demand; (3) can not make up the model of porous medium according to the experiment needs voluntarily, can only measure existing porous media material, be not suitable for general experimental loop.
Summary of the invention
Defective or deficiency to above-mentioned prior art exists the objective of the invention is to, and a kind of accurately measuring fluid pressure value is provided, porous medium interstitital texture visual pressure measurement mechanism that again can the splendid attire different size.
For realizing above-mentioned purpose, the present invention adopts following technical scheme:
A kind of porous medium interstitital texture visual pressure measurement mechanism; Comprise plexi-glass tubular, be installed in the plexi-glass tubular last orifice plate at two ends up and down, be installed in the stainless steel cloth in the orifice plate; And the pressure measurement ring that is installed in plexi-glass tubular differing heights place; This measurement mechanism further include be installed in the plexi-glass tubular upper and lower side go up under the organic glass flange, on this under the organic glass flange be connected with simple steel flange, plexi-glass tubular is fixed in the experimental loop.
Offer a plurality of perforates on the said orifice plate;
Perforate equal diameter on the said orifice plate and evenly be arranged on the orifice plate;
Said stainless steel cloth is processed by 304 treated stainless steel wires;
The wall of said plexi-glass tubular offers pressure port, after said pressure measurement ring and the connection of plexi-glass tubular wall this pressure port is included in the pressure measurement ring;
The diameter of said pressure port is 0.8mm;
Offer vent port directly over the said pressure measurement ring, a side of said pressure measurement ring is equipped with the pressure measurement mouth, and said vent port seals with nylon screw;
Offer vent port directly over the said pressure measurement ring, two sides that said pressure measurement ring is relative are equipped with the pressure measurement mouth;
Said orifice plate and organic glass flange are through being threaded;
Adopt embedded bonding between said plexi-glass tubular and the organic glass flange.
Compared with prior art, measurement mechanism of the present invention has the following advantages at least:
1. orifice plate directly adopts with the organic glass flange and is threaded, and prevents because orifice plate comes off and makes porous medium from plexi-glass tubular, spill;
2. the pressure port size is less than 1mm, more exactly the gaging pressure differential pressure;
3. the pressure measurement ring directly is bonded on the plexi-glass tubular, has guaranteed sealing, has saved the space, has also strengthened experimental section intensity simultaneously;
4. above the pressure measurement ring, open 4 exhaust holes, get rid of gas remaining in the pressure measurement ring, guaranteed the accuracy and the accuracy of measurement result;
5. adopt fixedly porous medium position of stainless (steel) wire, prevent that porous medium spill and leakage from plexi-glass tubular from coming out;
6. reasonable Arrangement pressure measurement point, the accurately variation tendency of monitor force;
7. at one or two pressure measurement mouth of pressure measurement ring side arrangement, can carry out the measurement of pressure and pressure reduction simultaneously, reduce measuring error.Simultaneously, a plurality of pressure measurement rings are distributed in tube wall and can measure the pressure reduction between the different duct height easily.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of measurement mechanism of the present invention;
Fig. 2 is an AND DEWATERING FOR ORIFICE STRUCTURE synoptic diagram of the present invention;
Fig. 3 is an A type pressure measurement ring structure synoptic diagram of the present invention;
Fig. 4 is a Type B pressure measurement ring structure synoptic diagram of the present invention.
Wherein:
A is a plexi-glass tubular; B is the organic glass flange; C is an orifice plate; D is a stainless steel cloth;
E is an A type pressure measurement ring; F is a Type B pressure measurement ring; 1 is tapping on the orifice plate (fluid is inflow and outflow from here);
2 is A type pressure measurement ring ring body; 3 is pressure port; 4 is vent port; 5 are the pressure measurement mouth;
6 is Type B pressure measurement ring ring body
Embodiment
Set forth in detail below in conjunction with accompanying drawing and a kind of embodiment of the present invention:
Porous medium interstitital texture visual pressure measurement mechanism of the present invention comprises plexi-glass tubular a, goes up organic glass flange b under the, goes up orifice plate c, goes up stainless steel cloth d and pressure measurement ring under the.Evenly have 19 isodiametric perforates 1 on the said orifice plate c, fluid flows into and flows out plexi-glass tubular a from this perforate 1, and orifice plate c and organic glass flange are through being threaded; Go up under stainless steel cloth d be placed on respectively in the orifice plate c; The outer wall differing heights place of plexi-glass tubular a is provided with 6 pressure measurement rings altogether, and the plexi-glass tubular wall in each pressure measurement ring all has the pressure port 3 of 4 diameter 0.8mm; Pressure measurement ring top is 4 vent ports 4 of distribution evenly, and vent port uses nylon screw to seal; Pressure measurement ring side is provided with pressure measurement mouth 5.Adopt between said plexi-glass tubular a and the organic glass flange b embedded bonding, between pressure measurement ring and the plexi-glass tubular a employing bonding, adopt between orifice plate c and the organic glass flange b to be threaded.
Said go up under organic glass flange b process by organic glass, in order to strengthen the intensity of flange, the thickness of slab of said flange is greater than 20mm.Said go up under the organic glass flange be connected with simple steel flange respectively, plexi-glass tubular is fixed in the experimental loop.
The said orifice plate c that goes up is processed by organic glass, is used for porous medium is fixed on plexi-glass tubular.Evenly 19 isodiametric perforates 1 of distribution on the orifice plate are so that fluid flows into and the outflow plexi-glass tubular from orifice plate.The diameter of perforate is according to the porous medium size Selection, and the principle that pore size is selected is to guarantee that the porosity of orifice plate face porosity and porous medium is approaching as far as possible.
Said stainless steel cloth is processed by 304 treated stainless steel wires.
Said pressure port is evenly opened the aperture of 4 diameter 0.8mm through small bits on the wall of each height of plexi-glass tubular a.
Said pressure measurement ring is processed by organic glass, adopts special stick that it is bonded on the plexi-glass tubular outside wall surface that has 4 pressure ports.Each pressure measurement ring side is provided with one or 2 pressure measurement mouths 5, links to each other gaging pressure or differential pressure with commercially available pressure differential pressure measurement instrument.
The vent port 4 of said pressure measurement ring is distributed in directly over the pressure measurement ring, is used to discharge the unnecessary gas in the pressure measurement ring, uses nylon screw to seal.
Said plexi-glass tubular a bottom and equal abacus c in top and stainless steel cloth d are fixed on porous medium in the plexi-glass tubular a, avoid it to drain in the experimental channel or by the mobile experimental section of taking out of of fluid; Fluid flows into measuring section from plexi-glass tubular a bottom, and is flowed out by the top; Be provided with the pressure measurement ring of 6 differing heights at plexi-glass tubular a barrel; The pressure port that to be furnished with 4 diameters symmetrically on the corresponding organic glass tube wall in each pressure measurement ring be 0.8mm, and through the bonding of pressure measurement ring and barrel pressure port 3 is sealed in the pressure measurement ring; Even 4 vent ports 4 that distribute at the top of each pressure measurement ring are used for before measurement is carried out, discharging the remaining gas of pressure measurement ring, to guarantee the high precision of measurement result; In each pressure measurement ring side 1 or 2 pressure measurement mouths 5 are set, are used for linking to each other, pressure is drawn with pressure differential pressure measurement instrument.
Referring to Fig. 1, the present invention includes plexi-glass tubular a, organic glass flange b, orifice plate c, stainless steel cloth d, A type pressure measurement ring e, Type B pressure measurement ring f.
Referring to Fig. 3, have pressure port 3 at the plexi-glass tubular wall, herein that pressure measurement ring 2 and wall is bonding, and pressure port is included in the pressure measurement ring.Said pressure measurement ring includes A type pressure measurement ring and Type B pressure measurement ring, has vent port 4 directly over the said A type pressure measurement ring.For measuring pressure ring section force value, a pressure measurement mouth 5 is arranged at the one of which side joint.
Referring to Fig. 4, have vent port 4 directly over the Type B pressure measurement ring, for measuring this section force value and pressure difference, be connected to pressure measurement mouth 5 respectively in its both sides.
During work; At first orifice plate c and the stainless steel cloth d with plexi-glass tubular a bottom installs; Then with porous medium from plexi-glass tubular a top is packed pipe into, stainless steel cloth d and the orifice plate c with top installs again, and porous medium is completely fixed among the plexi-glass tubular a.The pressure measurement mouth 5 of pressure measurement ring side is linked to each other with commercially available pressure (pressure reduction) sensor through the pressure measurement flexible pipe, be used for gaging pressure and pressure reduction.Open the vent port 4 of pressure measurement ring top.Fluid gets into the experiment pipeline section from the orifice plate c of plexi-glass tubular a below, behind the porous medium of flowing through, in the pressure port entering pressure measurement ring by tube wall, flows out from vent port 4 up to fluid, when no longer including gas in the pressure measurement ring, with nylon screw vent port is sealed.Pressure (pressure reduction) passes on the reaction diaphragm of commercially available pressure (pressure reduction) sensor through the pressure measurement mouth of pressure measurement ring side, produces reading, accomplishes the pressure measurement process.
Through in certain water cycle experimental loop, using and in the operational process of loop, experimental section pressure and pressure difference being measured, prove that this experimental provision can carry out pressure (pressure reduction) to the porous medium interstitital texture and measure, and realize the visual of measurement.Simultaneously,, can connect differential pressure pickup, measure the differing heights pressure difference according to the actual experiment demand because a plurality of pressure measurement mouths are set.Because its simplicity of design; Convenient measurement can freely change porous medium parameter in the plexi-glass tubular, the recycling experimental section; Saved experimental cost greatly, so the present invention is suitable for measuring the pressure (pressure reduction) of different parameters porous medium interstitital texture very much.
The above is merely one embodiment of the present invention; It or not whole or unique embodiment; The conversion of any equivalence that those of ordinary skills take technical scheme of the present invention through reading instructions of the present invention is claim of the present invention and contains.
Claims (10)
1. porous medium interstitital texture visual pressure measurement mechanism; It is characterized in that: comprise plexi-glass tubular (a); Be installed in plexi-glass tubular up and down two ends go up orifice plate (c); Be installed in the stainless steel cloth (d) in the orifice plate (c), and the pressure measurement ring that is installed in plexi-glass tubular differing heights place, this measurement mechanism further include be installed in the plexi-glass tubular upper and lower side go up under organic glass flange (b); Should go up under the organic glass flange be connected with simple steel flange, plexi-glass tubular is fixed in the experimental loop.
2. porous medium interstitital texture visual pressure measurement mechanism according to claim 1 is characterized in that: offer a plurality of perforates (1) on the said orifice plate (c).
3. porous medium interstitital texture visual pressure measurement mechanism according to claim 2 is characterized in that: (1) equal diameter of the perforate on the said orifice plate and evenly being arranged on the orifice plate.
4. porous medium interstitital texture visual pressure measurement mechanism according to claim 1, it is characterized in that: said stainless steel cloth is processed by 304 stainless steel wires.
5. porous medium interstitital texture visual pressure measurement mechanism according to claim 1; It is characterized in that: the wall of said plexi-glass tubular offers pressure port, after said pressure measurement ring and the connection of plexi-glass tubular wall this pressure port is included in the pressure measurement ring.
6. porous medium interstitital texture visual pressure measurement mechanism according to claim 5, it is characterized in that: the diameter of said pressure port is 0.8mm.
7. porous medium interstitital texture visual pressure measurement mechanism according to claim 5; It is characterized in that: offer vent port (4) directly over the said pressure measurement ring; A side of said pressure measurement ring is equipped with pressure measurement mouth (5), and said vent port seals with nylon screw.
8. porous medium interstitital texture visual pressure measurement mechanism according to claim 5 is characterized in that: offer vent port directly over the said pressure measurement ring, two sides that said pressure measurement ring is relative are equipped with pressure measurement mouth (5).
9. porous medium interstitital texture visual pressure measurement mechanism according to claim 1 is characterized in that: said orifice plate (c) and organic glass flange are through being threaded.
10. porous medium interstitital texture visual pressure measurement mechanism according to claim 1 is characterized in that: adopt embedded bonding between said plexi-glass tubular (a) and the organic glass flange (b).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102430575A CN102759427A (en) | 2012-07-13 | 2012-07-13 | Visualized pressure measuring device for porous media filling structure |
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| CN2012102430575A CN102759427A (en) | 2012-07-13 | 2012-07-13 | Visualized pressure measuring device for porous media filling structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759884A (en) * | 2014-01-29 | 2014-04-30 | 中国商用飞机有限责任公司 | Device and method for measuring static pressure of high-speed fluid in high-pressure pipeline |
| CN105814317A (en) * | 2013-12-17 | 2016-07-27 | 曼柴油机和涡轮机欧洲股份公司 | Compressor stage |
| CN105931684A (en) * | 2016-05-17 | 2016-09-07 | 西安交通大学 | Visual test device for foreign matter filtering performance study of reactor core lower pipe base of nuclear reactor |
| CN107105565A (en) * | 2017-05-02 | 2017-08-29 | 西北工业大学 | A kind of slight pressure traverse measuring device and measuring method for plasma flow control |
| CN108303208A (en) * | 2018-03-14 | 2018-07-20 | 青岛科技大学 | A kind of new equipment that achievable porous media stable percolation process multipoint pressure measures |
| CN108895945A (en) * | 2018-05-15 | 2018-11-27 | 首钢集团有限公司 | A kind of measuring device and method of converter bottom seam refractory material pack uniformity |
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| CN101234291A (en) * | 2007-11-12 | 2008-08-06 | 青岛科技大学 | Photocatalysis fluid bed reactor device for degrading volatile organic matter |
| CN101575669A (en) * | 2009-06-22 | 2009-11-11 | 北京科技大学 | Experimental device of iron ore pellets during drying and preheating processes and method thereof |
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| CN2674432Y (en) * | 2003-12-31 | 2005-01-26 | 中国铝业股份有限公司 | Measurer for abrasion index of alumina |
| CN1560581A (en) * | 2004-02-20 | 2005-01-05 | 中国科学院力学研究所 | Dynamic pore water pressure measuring method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105814317A (en) * | 2013-12-17 | 2016-07-27 | 曼柴油机和涡轮机欧洲股份公司 | Compressor stage |
| CN103759884A (en) * | 2014-01-29 | 2014-04-30 | 中国商用飞机有限责任公司 | Device and method for measuring static pressure of high-speed fluid in high-pressure pipeline |
| CN103759884B (en) * | 2014-01-29 | 2016-03-02 | 中国商用飞机有限责任公司 | Device and method for measuring static pressure of high-speed fluid in high-pressure pipeline |
| CN105931684A (en) * | 2016-05-17 | 2016-09-07 | 西安交通大学 | Visual test device for foreign matter filtering performance study of reactor core lower pipe base of nuclear reactor |
| CN105931684B (en) * | 2016-05-17 | 2017-08-15 | 西安交通大学 | Nuclear reactor bottom nozzle foreign body filtering performance study visual test device |
| CN107105565A (en) * | 2017-05-02 | 2017-08-29 | 西北工业大学 | A kind of slight pressure traverse measuring device and measuring method for plasma flow control |
| CN108303208A (en) * | 2018-03-14 | 2018-07-20 | 青岛科技大学 | A kind of new equipment that achievable porous media stable percolation process multipoint pressure measures |
| CN108895945A (en) * | 2018-05-15 | 2018-11-27 | 首钢集团有限公司 | A kind of measuring device and method of converter bottom seam refractory material pack uniformity |
| CN108895945B (en) * | 2018-05-15 | 2020-06-19 | 首钢集团有限公司 | Device and method for measuring filling uniformity of refractory material of converter bottom joint |
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Application publication date: 20121031 |