WO2009070904A1 - Hochdruckkapsel für druckmessungen und messvorrichtung mit einer hochdruckkapsel - Google Patents
Hochdruckkapsel für druckmessungen und messvorrichtung mit einer hochdruckkapsel Download PDFInfo
- Publication number
- WO2009070904A1 WO2009070904A1 PCT/CH2008/000494 CH2008000494W WO2009070904A1 WO 2009070904 A1 WO2009070904 A1 WO 2009070904A1 CH 2008000494 W CH2008000494 W CH 2008000494W WO 2009070904 A1 WO2009070904 A1 WO 2009070904A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- capsule
- measuring device
- pressure capsule
- membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0051—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance
- G01L9/006—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of metallic strain gauges fixed to an element other than the pressure transmitting diaphragm
- G01L9/0064—Transmitting or indicating the displacement of flexible diaphragms using variations in ohmic resistance of metallic strain gauges fixed to an element other than the pressure transmitting diaphragm the element and the diaphragm being in intimate contact
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J12/00—Pressure vessels in general
Definitions
- the invention relates to a high pressure capsule for pressure measurements, with a crucible having a cavity for receiving a sample and which is provided with a closure part for pressure-tight closure of the cavity.
- the invention also relates to a measuring device with a high-pressure capsule.
- a risk analysis is usually required.
- the heat production by desired but also undesirable reactions must be known.
- This heat production can be routinely measured by calorimetric methods.
- a very important parameter for such a risk analysis can also be the pressure development due to gases or vapors.
- Microcalorimeters are available in the trade, which can also register pressure data in addition to calorimetric data. Such a microcalorimeter is, for example, the Calvet calorimeter Setaram C80.
- the routine detection of the resulting pressure in the range up to 200 bar and up to 400 ° C is much more complicated for technical reasons.
- an electronic pressure transducer In known systems for measuring the pressure, an electronic pressure transducer is provided. This is usually located outside a measuring cell and is connected to it by means of a capillary. To reduce the dead volume of the Pressure measuring system, the capillary is usually filled with a liquid, such as oil or mercury and sealed against the measuring cell by a thin membrane.
- a liquid such as oil or mercury
- the disadvantage is that the decomposition gases and vapors which can corrode the membrane. Even a slight corrosion leads to leaks, which is why the system Druckaufhehmer capillary pressure transducer has a limited life.
- the price of such systems runs counter to routine use. When measuring highly active pharmaceutical substances, the measuring cell must be cleaned after each measurement. However, this step is expensive and also requires the installation of the calorimeter in a special laboratory.
- the invention has for its object to provide means and in particular a measuring device which avoids the disadvantages mentioned.
- the object is achieved by a high-pressure capsule according to claim 1.
- the crucible is provided with a membrane which can be applied to a pressure sensor for pressure measurement in a measuring cell.
- the corresponding measuring device has a measuring cell and a pressure transducer, which can be connected to a pressure transducer or connected thereto.
- the high-pressure capsule according to the invention and the pressure transducer can be inserted into the measuring cell such that the membrane of the high-pressure capsule and the pressure transducer are operatively connected to one another for pressure transmission.
- the filled crucible is then inserted into the measuring cell, so that it is connected to the pressure transducer.
- the membrane of the high pressure capsule is applied to a membrane of the pressure transducer, so that a movement of the membrane of the high pressure capsule is transferable to the pressure transducer.
- the high-pressure capsule can be disposed of.
- the high-pressure capsule or the measuring device is suitable, for example, and in particular for pharmacologically active substances.
- the high-pressure capsule can be filled and closed at any desired location. Since the high-pressure capsule does not have to be opened, a corresponding cleaning process is eliminated. The preparation of samples can be done in special laboratories, while the calorimeter can also be used outside the special laboratory.
- FIG. 1 shows a schematic longitudinal section through a measuring device according to the invention
- Figure 2 is a longitudinal section through an inventive high-pressure capsule
- FIG. 3 shows, on a greatly enlarged scale, a section through the region of the measuring device in that one end of the high-pressure capsule bears against the pressure sensor.
- the measuring device 25 shown in FIG. 1 has a measuring cell 6, which has an in particular cylindrical and preferably circular-cylindrical housing 12.
- the housing 12 has a recess 24 which extends from a first end A to a second end B and into which a high-pressure capsule 1 is inserted. With a cover 13, this high-pressure capsule 1 is positioned against a shoulder 16 of the housing 12. Further, in the recess 24, a pressure sensor 7 is used, which rests against a shoulder 22 and is connected via a capillary 18 with a known pressure transducer 23.
- the high-pressure capsule 1 consists of a crucible 2 and a closure part 4 fastened thereto in a non-detachable and pressure-tight manner.
- the crucible 2 and the closure part 4 are made preferably completely made of stainless steel.
- the closure part 4 is preferably designed according to CH 695 709 A5. In principle, however, another unsolvable and pressure-tight closure part is also conceivable here.
- the closure part 4 seals a cavity 3 of the crucible 2 from the outside.
- the crucible 2 has a preferably integrally formed comparatively thin membrane 5, which according to FIG. 2 has a front side 10 and a rear side 11.
- the membrane 5 serves to transmit a pressure in the cavity 3 to the Druckaufhehmer 7 and thus via the capillary 18 to the pressure transducer 23.
- the membrane 5 of the crucible 2 lies with the front side 10 flatly and directly against a membrane 8 of the pressure transducer 7.
- the high-pressure capsule 1 and the pressure absorber 7 are thus positioned on the shoulders 16 and 22 so that the two membranes 5 and 8 lie flat against one another.
- the membrane 5 of the high pressure capsule 1 is designed so that it can withstand an internal pressure of at least about 200 bar. Since the membrane 5 is supported on the membrane 8 of the pressure transducer 7, such an internal pressure up to 200 bar, even at a temperature of, for example, 300 ° C substantially without deformation of the membrane 5 is possible.
- the sample to be measured is filled into the cavity 3 of the crucible 2.
- a special laboratory as mentioned above.
- Such a laboratory is required, for example, when the sample is a highly active pharmaceutical substance.
- the closure part 4 is applied.
- This may have a disc 9, as disclosed in CH 695 709 A5.
- the disk 9 can thus have a surface which supports a cold welding with the crucible 2.
- the sealed high pressure capsule 1 is now inserted through an opening 14 of the housing 12 in this until it rests against said shoulder 16.
- the lid 13 is screwed with a thread 15 in the opening 14 until a sleeve-shaped part 17 rests against the closure member 14 and thus the high-pressure capsule 1 at the shoulder 16 accurately positioned.
- the pressure transducer 7 After a screwed into the opening 21 threaded sleeve 19 of the Druckaufhehmer 7 is positioned. This is as already mentioned via a capillary 18 connected to the pressure transducer 23 for pressure transmission. For screwing in the threaded sleeve 19, this has a hexagonal projection 20.
- the measuring cell 6 can now be used in a conventional manner in a calorimeter and the measuring operation can be performed. Once the measurement has been completed, the cover 13 is unscrewed and the high-pressure capsule 1 disposed of. The measuring cell 6 is now immediately ready for another measurement. A cleaning of the measuring cell 6 is basically not required.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112008003295T DE112008003295A5 (de) | 2007-12-06 | 2008-11-21 | Hochdruckkapsel für Druckmessungen und Messvorrichtung mit einer Hochdruckkapsel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1887/07 | 2007-12-06 | ||
| CH01887/07A CH711984B1 (de) | 2007-12-06 | 2007-12-06 | Hochdruckkapsel für Druckmessungen und Messvorrichtung mit einer Hochdruckkapsel. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2009070904A1 true WO2009070904A1 (de) | 2009-06-11 |
| WO2009070904A8 WO2009070904A8 (de) | 2010-03-18 |
Family
ID=40404797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH2008/000494 Ceased WO2009070904A1 (de) | 2007-12-06 | 2008-11-21 | Hochdruckkapsel für druckmessungen und messvorrichtung mit einer hochdruckkapsel |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH711984B1 (de) |
| DE (1) | DE112008003295A5 (de) |
| WO (1) | WO2009070904A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2492669A1 (de) | 2011-02-24 | 2012-08-29 | SWISSI Process Safety GmbH | Probengefäss für kalorimetrische Messungen |
| CN109613113A (zh) * | 2018-04-08 | 2019-04-12 | 江苏联友科研仪器有限公司 | 一种高温高压流体测试釜 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1185362B (de) * | 1963-09-19 | 1965-01-14 | Beteiligungs & Patentverw Gmbh | Behaelter fuer hohen Innendruck, insbesondere Druckbehaelter eines Kernreaktors |
| US3417361A (en) * | 1966-03-07 | 1968-12-17 | Conrac Corp | Semiconductive pressure transducer |
| US4023415A (en) * | 1974-04-18 | 1977-05-17 | G. E. Garcia | Pressure monitoring device |
| DE9012914U1 (de) * | 1990-01-09 | 1990-11-29 | Degussa Ag, 6000 Frankfurt | Hochdruck-Hochtemperaturreaktor |
| JPH04135810A (ja) * | 1990-09-28 | 1992-05-11 | Mitsubishi Heavy Ind Ltd | 多品種少量生産用オートクレーブ |
| DE10130376A1 (de) * | 2001-06-23 | 2003-01-09 | Abb Patent Gmbh | Differenzdrucksensor |
| CH695709A5 (de) * | 2002-02-20 | 2006-07-31 | Schweizerisches Inst Zur Foerd | Hochdruckkapsel. |
-
2007
- 2007-12-06 CH CH01887/07A patent/CH711984B1/de not_active IP Right Cessation
-
2008
- 2008-11-21 WO PCT/CH2008/000494 patent/WO2009070904A1/de not_active Ceased
- 2008-11-21 DE DE112008003295T patent/DE112008003295A5/de not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1185362B (de) * | 1963-09-19 | 1965-01-14 | Beteiligungs & Patentverw Gmbh | Behaelter fuer hohen Innendruck, insbesondere Druckbehaelter eines Kernreaktors |
| US3417361A (en) * | 1966-03-07 | 1968-12-17 | Conrac Corp | Semiconductive pressure transducer |
| US4023415A (en) * | 1974-04-18 | 1977-05-17 | G. E. Garcia | Pressure monitoring device |
| DE9012914U1 (de) * | 1990-01-09 | 1990-11-29 | Degussa Ag, 6000 Frankfurt | Hochdruck-Hochtemperaturreaktor |
| JPH04135810A (ja) * | 1990-09-28 | 1992-05-11 | Mitsubishi Heavy Ind Ltd | 多品種少量生産用オートクレーブ |
| DE10130376A1 (de) * | 2001-06-23 | 2003-01-09 | Abb Patent Gmbh | Differenzdrucksensor |
| CH695709A5 (de) * | 2002-02-20 | 2006-07-31 | Schweizerisches Inst Zur Foerd | Hochdruckkapsel. |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2492669A1 (de) | 2011-02-24 | 2012-08-29 | SWISSI Process Safety GmbH | Probengefäss für kalorimetrische Messungen |
| CN109613113A (zh) * | 2018-04-08 | 2019-04-12 | 江苏联友科研仪器有限公司 | 一种高温高压流体测试釜 |
| CN109613113B (zh) * | 2018-04-08 | 2021-04-27 | 江苏联友科研仪器有限公司 | 一种高温高压流体测试釜 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112008003295A5 (de) | 2011-02-10 |
| CH711984B1 (de) | 2017-06-30 |
| WO2009070904A8 (de) | 2010-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0759547B1 (de) | Drucksensor | |
| DE102009027581A1 (de) | Messvorrichtung umfassend eine Messsonde und eine Befestigungsvorrichtung | |
| WO1993022646A1 (de) | Vorrichtung zum messen von druck und differenzdruck | |
| DE102016124647A1 (de) | Verfahren zur Inbetriebnahme einer Inline-Sensoranordnung und Inline-Sensoranordnung | |
| CH701837B1 (de) | Einbauelektrodenvorrichtung. | |
| DE102016101715A1 (de) | Sensoranordnung | |
| DE2633328C2 (de) | Kalorimeter | |
| DE202009012292U1 (de) | Temperaturfühler mit Prüfkanal | |
| DE102016212220A1 (de) | Anordnung aus einem Messgerät und einem Behälter | |
| WO2009070904A1 (de) | Hochdruckkapsel für druckmessungen und messvorrichtung mit einer hochdruckkapsel | |
| DE19749111A1 (de) | Elektrochemische Untersuchungsanordnung und miniaterisierte Meßzelle zur Untersuchung eines metallischen Bauteils | |
| DE2124445B2 (de) | Elektrodenanordnung mit einer selektiv durchlaessigen membran | |
| DE4124142C2 (de) | Temperaturmeßgerät | |
| DE102006033467A1 (de) | Druckerfassungsvorrichtung | |
| DE2846668A1 (de) | Dehnungsmesseinrichtung fuer schraubenspannvorrichtungen, insbesondere bei reaktordruckbehaeltern | |
| EP3757571B1 (de) | Fliesstest-einheit, set und verwendung einer fliesstest-einheit zur durchführung einer nachweisreaktion | |
| DE3911151A1 (de) | Messgeraet zur bestimmung von bodeneigenschaften | |
| EP1866634A1 (de) | Abwasseranalyse-sensorkartusche | |
| DE2263901B2 (de) | Meßumformer | |
| DE10021059A1 (de) | Fühler | |
| DE3825657A1 (de) | Pruefvorrichtung fuer zugstaebe | |
| EP3147635A1 (de) | Sondenhalterung mit abstandhalter | |
| DE20006226U1 (de) | Druckmessanordnung | |
| EP0211160A2 (de) | Verfahren und Einrichtung zur nachprüfbaren Freisetzung von Gasen | |
| EP2674105B1 (de) | Intraoral verwendbare Sensorvorrichtung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08858120 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1120080032955 Country of ref document: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 08858120 Country of ref document: EP Kind code of ref document: A1 |
|
| REF | Corresponds to |
Ref document number: 112008003295 Country of ref document: DE Date of ref document: 20110210 Kind code of ref document: P |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112008003295 Country of ref document: DE Effective date: 20110210 |