CN2738240Y - Centrifuge tube for fluid surface interface tension measurement - Google Patents
Centrifuge tube for fluid surface interface tension measurement Download PDFInfo
- Publication number
- CN2738240Y CN2738240Y CN 200420092449 CN200420092449U CN2738240Y CN 2738240 Y CN2738240 Y CN 2738240Y CN 200420092449 CN200420092449 CN 200420092449 CN 200420092449 U CN200420092449 U CN 200420092449U CN 2738240 Y CN2738240 Y CN 2738240Y
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- centrifuge tube
- fluid
- interface
- stopple
- tonometry
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Abstract
The utility model relates to a centrifuge tube for fluid surface interface tension measurement, which comprises a centrifuge tube used for measuring the ultra-low interface tension of the fluid and a centrifuge tube used for measuring the surface interface tension of the fluid. The former comprises a quartz slim tube, a tube opening sleeve and a tube end locating sleeve. The two tube sleeves are respectively provided with apertures used for gassing and discharging the liquid and guide apertures used for charging the liquid, pumping the liquid or discharging the liquid; the bottom of the sleeve hole is provided with a silicon rubber pad; the latter comprises a quartz strong tube, a hole plug and a pressure cap of the hole plug. The pressure cap of the hole plug is inserted in the cylindrical hole of the hole plug; the front end of the pressure cap of the hole plug is provided with a silicon rubber pad; the hole plug and the pressure cap of the hole plug are covered with sealing rings, and guide apertures are provided along the axial cord. The centrifuge tube for fluid surface interface tension measurement overcomes the defects of easy loosening, easy leakage and easy air bulb occurrence, and the defect that the existing centrifuge tube is eccentric with the rotating axis. The centrifuge tube for fluid surface interface tension measurement is suitable to adopt a tension meter with the rotating drop measuring method and the oscillating drop measuring method to be used for measuring the surface interface tension and the contact angle of the fluid, and can be widely used for the fields such as petroleum, light textile and fine chemical industry, etc.
Description
Technical field
The utility model relates to fluid measurement instrument, refers to a kind of centrifuge tube that is used for fluid measurement especially.
Technical background
Surface and interface tension force and contact angle are the master datas of research fluid interface character.To the applied research of surface and interface colloidal chemistry field (oil, light textile, fine chemistry industry), cause having developed multiple interface science surveying instrument now.Such surveying instrument adopts rotation to drip/method of oscillating drop, can accurately measure parameters such as fluid surface and interface tension force and contact angle, be widely used in improving research, fuel oil and lubricant, paper products and the photosensitive material of the research of oil recovery factor and field monitoring, surfactant and washing agent fields such as research with paint, printing ink, agricultural chemicals.Wherein U.S. young tiger is tieed up a kind of TX500C gamut interfacial tension measuring instrument that industrial group releases, as shown in Figure 1, its centrifuge tube is made up of a quartz ampoule 02, mouthpiece cover 03, silicone rubber pad 031, endoporus 031 bottom connection of this mouthpiece cover 03 has a pilot hole 033, from then on syringe needle is inserted in the hole when fluid injection or drawing liquid, front end at this mouthpiece cover 03 is shaped on one section screw 034, is to be used to connect the instrument rotating shaft.The plug butt that steel bushing is interior and shaft hole is interior of instrument rotation axis hole is directly inserted in the bottom of this kind centrifuge tube, and loose owing to cooperating, centrifuge tube and rotating shaft decentraction influence measuring accuracy; And the interior Luo Bi of the screw 034 of mouthpiece cover 03 front end easily causes wearing and tearing after centrifuge tube repeatedly inserts, and centrifuge tube is rocked, and causes producing bubble and influences measurement; And overlap to observe in 03 o'clock at liquid feeding bonnet upper orifice and whether build.Moreover the centrifuge tube of this kind measuring instrument only has a kind of tubule that is suitable for measuring ultralow interfacial tension, and measurement range is narrower.
Summary of the invention
The purpose of this utility model is the defective that will overcome existing centrifuge tube, provide use reliable, measuring accuracy is high and can enlarge the fluid surface and interface tonometry centrifuge tube of measurement range.
The purpose of this utility model is achieved in that
The ultralow surface and interface tonometry of a kind of fluid centrifuge tube is provided, include the tubule of end opening one by one and be sleeved on the mouthpiece cover of this tubule openend, it is characterized in that: in the bottom of described tubule, also be set with a pipe end locating sleeve, this pipe end locating sleeve is concentric with the measuring instrument motor shaft, plug butt in its vertex of a cone and this rotating shaft, section reaches the aperture that respectively radially is shaped on a through tube wall at described mouthpiece cover leading portion therein, at the trepanning rear portion that described tubule is inserted in described mouthpiece cover confession, be extended with a guiding aperture along axis, be equipped with a rubber cushion in this trepanning bottom.And
A kind of fluid surface and interface tonometry centrifuge tube is provided, it is characterized in that: include an extra heavy pipe, one stopple and a stopple pressure cap, described extra heavy pipe one end opening, this openend is for inserting described stopple, the leading portion of this stopple is with one " O " shape O-ring seal, back segment is shaped on the aperture of a perforation jacket wall, the leading portion of this stopple endoporus is a bellmouth, back segment is a cylindrical hole, connected by a guiding aperture between this two hole, described stopple pressure cap embeds in this cylindrical hole of described stopple, and the front end of described stopple pressure cap is equipped with a rubber cushion, the stage casing is with one " O " shape O-ring seal, is shaped on a pilot hole along axis.
The utlity model has following good effect:
One, the utility model not only can be measured ultralow interfacial tension, and can measure general surface and interface tension force owing to adopt tubule and two kinds of specification frameworks of extra heavy pipe, has enlarged measurement range.
Two, the utility model increases by a pipe end locating sleeve at the blind end of tubule, make tubule and rotating shaft concentric, on mouthpiece cover, increase by a cover for seat, it is stable, convenient that centrifuge tube is installed, give vent to anger and outage increasing by one on the mouthpiece cover and on the stopple at extra heavy pipe again, overcome existing centrifuge tube and rotating shaft decentraction, easily become flexible, leaked and easily produced the defective of bubble, and improved measuring accuracy.
Description of drawings
The STRUCTURE DECOMPOSITION synoptic diagram of ultralow surface and interface tension force with centrifuge tube measured by the existing U.S. of Fig. 1;
Fig. 2 the utility model is measured the STRUCTURE DECOMPOSITION synoptic diagram of ultralow surface and interface tension force with centrifuge tube;
Fig. 3 the utility model meter interfacial tension STRUCTURE DECOMPOSITION synoptic diagram of centrifuge tube.
Embodiment
Embodiment 1: as shown in Figure 2, measure the ultralow surface and interface tension force of fluid centrifuge tube 1, have the tubule 12 of an end opening and be sleeved on the mouthpiece cover 13 of this tubule openend, bottom at tubule, also be with a pipe end locating sleeve 11, plug (not shown) in the direct contact rotating shaft in top of this pipe end locating sleeve 11, be shaped on the aperture 111 of a through tube wall in pipe locating sleeve 11 stage casings, the end in order to give vent to anger, be shaped in order to give vent to anger and the aperture 132 of discharge opeing at mouthpiece cover 13 leading portions, at trepanning 131 rear portions that tubule is inserted in mouthpiece cover 13 confessions, be extended with one in order to fluid injection along axis, the guiding aperture 134 of drawing liquid or discharge opeing is equipped with a rubber cushion 133 in these trepanning 131 bottoms.Mouthpiece cover 13 can further overlap the cover for seat 14 of packing into, trepanning bottom in this cover for seat 14 is equipped with a rubber cushion 141, the screw 142 of cover for seat 14 screws (not shown) with the double-screw bolt of measuring instrument main frame swivelling pipe end cap, unlikely drive mouthpiece cover 13 rotations when centrifuge tube screws axle cap so that pack into, it is more convenient reliable that it is installed.The internal diameter of tubule 12 is 1.6mm～2.4mm.The material of tubule is quartzy, and the material of rubber cushion 133 is a silicon rubber, and the material of pipe end locating sleeve 11 and back cover 13 is teflon.
Embodiment 2: as shown in Figure 3, measure fluid surface and interface tension force centrifuge tube 2, extra heavy pipe 21 with an end opening, this extra heavy pipe openend is for inserting a stopple 22, the leading portion of this stopple is with one " O " shape O-ring seal 225, back segment is shaped on the aperture 222 of a perforation jacket wall, in order to give vent to anger and discharge opeing, the leading portion of the endoporus of this stopple 22 is bellmouths 223, and back segment is a cylindrical hole 224, is connected by a guiding aperture 221 between this two hole, one stopple pressure cap 23 embeds this cylindrical hole 224 of this stopple 22, these stopple pressure cap 23 front ends are equipped with a rubber cushion 231, and the stage casing is with one " O " shape O-ring seal 232, is shaped on one in order to fluid injection along axis, the guiding aperture 233 of drawing liquid or discharge opeing.The internal diameter of extra heavy pipe 21 is 5.6mm～6.4mm.The material of extra heavy pipe 21 is quartzy, and the material of stopple 22 and stopple pressure cap 23 is teflon, and the material of rubber cushion 231 is a silicon rubber.
The utility model is suitable for adopting rotating and drips the measurement that the tensiometer that reaches the oscillating drop measuring method is used as fluid surface and interface tension force and contact angle, is widely used in fields such as oil, light textile and fine chemistry industry.
Claims (11)
1, the ultralow surface and interface tonometry of a kind of fluid centrifuge tube, include the tubule of end opening one by one and be sleeved on the mouthpiece cover of this tubule openend, it is characterized in that: in the bottom of described tubule, also be set with a pipe end locating sleeve, locating sleeve is concentric with the measuring instrument motor shaft at the bottom of the described pipe, plug butt in its vertex of a cone and the described rotating shaft, the locating sleeve stage casing reaches the aperture that respectively radially is shaped on a through tube wall at described mouthpiece cover leading portion at the bottom of described pipe, be inserted in the trepanning rear portion of described tubule in the confession of described mouthpiece cover, be extended with a guiding aperture along axis, be equipped with a rubber cushion in described trepanning bottom.
2, by the ultralow surface and interface tonometry of the described fluid of claim 1 centrifuge tube, it is characterized in that: further include a cover for seat, described mouthpiece cover back segment inserts in the seat hole of described cover for seat front end, bottom, described seat hole is equipped with a rubber cushion, the rear end of described cover for seat is shaped on one section screw, and the double-screw bolt of described screw and measuring instrument main frame swivelling pipe end cap screws.
3, by the ultralow surface and interface tonometry of the described fluid of claim 1 centrifuge tube, it is characterized in that: the internal diameter of described tubule is 1.6mm～2.4mm.
4, by the ultralow surface and interface tonometry of the described fluid of claim 1 centrifuge tube, it is characterized in that: the material of described tubule is quartzy.
5, by claim 1 or the ultralow surface and interface tonometry of 2 described fluids centrifuge tube, it is characterized in that: the material of described rubber cushion is a silicon rubber.
6, by the ultralow surface and interface tonometry of the described fluid of claim 1 centrifuge tube, it is characterized in that: the material of locating sleeve and mouthpiece cover is a teflon at the bottom of the described pipe.
7, a kind of fluid surface and interface tonometry centrifuge tube, it is characterized in that: include an extra heavy pipe, one stopple and a stopple pressure cap, described extra heavy pipe one end opening, this openend is for inserting described stopple, the leading portion of described stopple is with an O-ring seal, back segment radially has the aperture of a perforation jacket wall, the leading portion of described stopple endoporus is a bellmouth, back segment is a cylindrical hole, connected by a guiding aperture between this two hole, described stopple pressure cap embeds in the cylindrical hole of stopple, and the front end of described stopple pressure cap is equipped with a rubber cushion, the stage casing is with an O-ring seal, along axis one pilot hole is arranged.
8, by the described fluid surface and interface of claim 7 tonometry centrifuge tube, it is characterized in that: the internal diameter of described extra heavy pipe is 5.6mm～6.4mm.
9, by the described fluid surface and interface of claim 7 tonometry centrifuge tube, it is characterized in that: the material of described extra heavy pipe is quartzy.
10, by the described fluid surface and interface of claim 7 tonometry centrifuge tube, it is characterized in that: the material of described rubber cushion is a silicon rubber.
11, by the described fluid surface and interface of claim 7 tonometry centrifuge tube, it is characterized in that: the material of described stopple and stopple pressure cap is a teflon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092449 CN2738240Y (en) | 2004-09-17 | 2004-09-17 | Centrifuge tube for fluid surface interface tension measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420092449 CN2738240Y (en) | 2004-09-17 | 2004-09-17 | Centrifuge tube for fluid surface interface tension measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2738240Y true CN2738240Y (en) | 2005-11-02 |
Family
ID=35348146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420092449 Expired - Fee Related CN2738240Y (en) | 2004-09-17 | 2004-09-17 | Centrifuge tube for fluid surface interface tension measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2738240Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813600A (en) * | 2010-04-16 | 2010-08-25 | 华东理工大学 | Interfacial tension test device |
| EP3090802A1 (en) * | 2015-05-08 | 2016-11-09 | Krüss GmbH | Method and device for measuring an interfacial tension |
-
2004
- 2004-09-17 CN CN 200420092449 patent/CN2738240Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101813600A (en) * | 2010-04-16 | 2010-08-25 | 华东理工大学 | Interfacial tension test device |
| WO2011127637A1 (en) * | 2010-04-16 | 2011-10-20 | 华东理工大学 | Interfacial tension test device |
| EP3090802A1 (en) * | 2015-05-08 | 2016-11-09 | Krüss GmbH | Method and device for measuring an interfacial tension |
| CN106124367A (en) * | 2015-05-08 | 2016-11-16 | 克吕士科学实验仪器有限公司 | For measuring equipment and the method for interfacial tension |
| CN106124367B (en) * | 2015-05-08 | 2019-05-14 | 克吕士科学实验仪器有限公司 | For measuring the device and method of interfacial tension |
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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: 20051102 Termination date: 20130917 |