IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0734506
(2000-12-11)
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발명자
/ 주소 |
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출원인 / 주소 |
- Endress + Hauser Wetzer GmbH + Co. KG
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
6 |
초록
▼
The sampler comprises a vessel assembly for taking, conducting, and storing a fluid sample to be stored at a predeterminable storage temperature as well as a cooling assembly, thermally coupled to the vessel assembly, for cooling the fluid sample. The cooling assembly has a first cooling volume, whi
The sampler comprises a vessel assembly for taking, conducting, and storing a fluid sample to be stored at a predeterminable storage temperature as well as a cooling assembly, thermally coupled to the vessel assembly, for cooling the fluid sample. The cooling assembly has a first cooling volume, which encompasses the vessel assembly, and a second cooling volume, which jackets the vessel assembly. To cool the fluid sample, the internal temperature of the vessel assembly is lowered by means of the cooling assembly prior to and/or during the dispensing of the fluid sample, and the fluid is subsequently conducted or held in the vessel assembly.
대표청구항
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1. A method of dispensing and cooling a sample of a fluid withdrawn at a sampling location by means of a sampler, said sample to be stored at a selectable storage temperature value, said fluid having a sampling temperature value greater than the storage temperature value, said sampler comprising a v
1. A method of dispensing and cooling a sample of a fluid withdrawn at a sampling location by means of a sampler, said sample to be stored at a selectable storage temperature value, said fluid having a sampling temperature value greater than the storage temperature value, said sampler comprising a vessel assembly of a predetermined volume with a tubular intake vessel for conducting the withdrawn fluid, said sampler further comprising a storage vessel for storing the fluid sample, said vessel assembly having an internal temperature, wherein prior to the dispensing said internal temperature of the vessel assembly having an initial internal temperature value being lower than the sampling temperature value; and said sampler further comprising a cooling assembly thermally coupled to the vessel assembly for adjusting said internal temperature of the vessel assembly, said cooling assembly comprising at least a first cooling volume having a first cooling temperature, said cooling temperature being set at the storage temperature value at least after the storing of the fluid sample, said method comprising steps of:lowering the internal temperature of the vessel assembly by means of the cooling assembly to a temperature value lower than the initial internal temperature value of the vessel assembly; letting the withdrawn fluid flow through the intake vessel; and letting a partial volume of the withdrawn fluid flow into the storage vessel to obtain the fluid sample, wherein the step of lowering the internal temperature of the vessel assembly includes setting the first cooling temperature to a temperature value lower than the storage temperature value. 2. A method of dispensing and cooling a sample of a fluid withdrawn at a sampling location by means of a sampler, said sample to be stored at a selectable storage temperature value, said fluid having a sampling temperature value greater than the storage temperature value, said sampler comprising a vessel assembly of a predetermined volume with a tubular intake vessel for conducting the withdrawn fluid, said sampler further comprising a storage vessel for storing the fluid sample, said vessel assembly having an internal temperature, wherein prior to the dispensing said internal temperature of the vessel assembly having an initial internal temperature value being lower than the sampling temperature value; and said sampler further comprising a cooling assembly thermally coupled to the vessel assembly for adjusting said internal temperature of the vessel assembly, said cooling assembly comprising at least a first cooling volume having a first cooling temperature, said cooling temperature being set at the storage temperature value at least after the storing of the fluid sample, said method comprising steps of:lowering the internal temperature of the vessel assembly by means of the cooling assembly to a temperature value lower than the initial internal temperature value of the vessel assembly; letting the withdrawn fluid flow through the intake vessel; and letting a partial volume of the withdrawn fluid flow into the storage vessel to obtain the fluid sample, wherein the step of lowering the internal temperature of the vessel assembly includes adjusting a predeterminable second cooling temperature of a second cooling volume encompassing the vessel assembly at least in sections to a temperature value below the storage temperature value. 3. A sampler for dispensing and cooling a sample of a liquid withdrawn at a sampling location, said liquid having a sampling temperature, said sample to be stored at a storage temperature having a preselected temperature value lower than a temperature value of said sampling temperature, said sampler comprising:a vessel assembly with a tubular intake vessel for conducting the withdrawn liquid and a storage vessel for storing the liquid sample, said vessel assembly having a changeable internal temperature; and a cooling assembly for adjusting the internal temperature of the vessel assembly, said cooling assembly being thermally coupled to the vessel assembly at least in sections and said cooling assembly including a first cooling unit for cooling the fluid sample to the temperature value of the storage temperature, said first cooling unit being thermally coupled at least to said storage vessel, and said cooling assembly further including a second cooling unit for cooling off the withdrawn fluid to a temperature value lower than the temperature value of the sampling temperature, said second cooling unit being in contact to the vessel assembly at least in sections. 4. A sampler as claimed in claim 3 wherein the second cooling volume is embedded in the first cooling volume.5. A sampler as claimed in claim 3 wherein the vessel assembly further includes a metering vessel temporarily closable at the outlet end for metering the fluid sample.6. A sampler as claimed in claim 5 wherein the second cooling volume is formed at least by a cooling element of the cooling assembly, said cooling element being disposed at the metering vessel for setting an internal temperature of the metering vessel.7. A sampler as claimed in claim 5 wherein the storage vessel and the metering vessel are disposed within the first cooling volume.8. A sampler as claimed in claim 3 wherein the vessel assembly further includes a distributing vessel for dispensing the fluid sample into the storage vessel.9. A sampler as claimed in claim 8 wherein the second cooling volume is formed at least by a cooling element of the cooling assembly, said cooling element being disposed at the distributing vessel for setting an internal temperature of the distributing vessel.10. A sampler as claimed in claim 3 wherein the second cooling volume is formed at least by a cooling element of the cooling assembly, said cooling element being disposed at the intake vessel for setting an internal temperature of the intake vessel.11. A sampler as claimed in claim 10 wherein the cooling element is a flow cooler.12. A sampler as claimed in claim 3 wherein the second cooling volume is formed at least by a cooling element of the cooling assembly, said cooling element being disposed at the storage vessel for setting the internal temperature of the storage vessel.13. A sampler as claimed in claim 3 wherein the intake vessel is partially contacted by the first cooling volume.14. A sampler as claimed in claim 3 wherein the vessel assembly and the cooling assembly are configured to dispense and cool, respectively, at least one of a drinking water and a wastewater.15. A sampler as claimed in claim 3, wherein the first cooling unit has a cooling temperature being temporary adjusted to a temperature value lower than the preselected temperature value of the storage temperature.16. A sampler as claimed in claim 3, wherein the second cooling unit has a cooling temperature being adjusted to a temperature value lower than the preselected temperature value of the storage temperature.17. A method of dispensing and cooling off a sample of a liquid by means of a sampler, said sampler comprising a vessel assembly being operable to conduct and to store said sample, said method comprising steps of:adjusting an internal temperature of the vessel assembly to an initial mean temperature value; lowering the internal temperature of the vessel assembly to a mean temperature value lower than the initial mean temperature value; withdrawing liquid at a sampling location, said sampling location having a liquid temperature value higher than the initial mean temperature value; letting the withdrawn liquid flow through an intake vessel of said vessel assembly; and obtaining said sample from said withdrawn liquid by letting flow a partial volume of the withdrawn fluid into a storage vessel of said vessel assembly, said storage vessel having a variable storage vessel temperature; adjusting said storage vessel temperature for storing said sample at a storage temperature value lower than said liquid sampling temperature value of the sampling location; wherein said step of lowering the internal temperature of the vessel assembly comprises the step of adjusting the storage vessel temperature to a temperature value lower than the storage temperature value. 18. A method as claimed in claim 17 comprising the step of raising the internal temperature of the vessel assembly.19. A method as claimed in claim 17 wherein the step of adjusting said storage vessel temperature for storing said sample includes raising the storage vessel temperature to a temperature value about equal to the storage temperature value.20. A method as claimed in claim 17 wherein said step of lowering the internal temperature of the vessel assembly includes adjusting a variable intake vessel temperature of the intake vessel to a temperature value lower than the liquid temperature value at the sampling location.21. A method of dispensing and cooling off a sample of a liquid by means of a sampler, said sampler comprising a vessel assembly being operable to conduct and to store said sample, said method comprising steps of:adjusting an internal temperature of the vessel assembly to an initial mean temperature value; lowering the internal temperature of the vessel assembly to a mean temperature value lower than the initial mean temperature value; withdrawing liquid at a sampling location, said sampling location having a liquid temperature value higher than the initial mean temperature value; letting the withdrawn liquid flow through an intake vessel of said vessel assembly; obtaining said sample from said withdrawn liquid by letting flow a partial volume of the withdrawn liquid into a storage vessel of said vessel assembly; adjusting a storage vessel temperature of said storage vessel for storing the sample at a storage temperature value lower than said liquid sampling temperature value of the sampling location; and raising the internal temperature of the vessel assembly to a mean temperature value about equal to the initial mean temperature value, wherein the step of lowering the internal temperature of the vessel assembly includes adjusting the storage vessel temperature to a temperature value lower than the storage temperature value.
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