IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0594656
(2005-04-07)
|
등록번호 |
US-7685894
(2010-04-23)
|
우선권정보 |
IT-VC04A0002(2004-04-09) |
국제출원번호 |
PCT/IB2005/051145
(2005-04-07)
|
§371/§102 date |
20060927
(20060927)
|
국제공개번호 |
WO05/098392
(2005-10-20)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
▼
A probe (S) for the extraction of gas from a process environment comprises a tubular element (2), which can be positioned within the process environment. This tubular element has at one end a gas aspiration opening (TS) and defines an internal cavity (CA) by which the interior of the process environ
A probe (S) for the extraction of gas from a process environment comprises a tubular element (2), which can be positioned within the process environment. This tubular element has at one end a gas aspiration opening (TS) and defines an internal cavity (CA) by which the interior of the process environment can be put into fluid communication with a gas take off system. The probe further includes a second tubular element (1) extending into the interior of the cavity of the first tubular element (2). This second tubular element has one end (UG) disposed at the aspiration opening end (that is to say the process environment side), formed in such a way as to inject the said accelerated gaseous fluid towards the aspiration opening of the first tubular element (2) and from there back to the process environment. Also envisaged is a system for the extraction of gas from a process environment which can be coupled to the probe, comprising a circuit (40, C) aspirating the gas from the process environment through the cavity (CA) of the first tubular element of the probe (2), and a circuit (50, C) for re-injecting the said gas into the same process environment through the second tubular element of the probe (1).
대표청구항
▼
The invention claimed is: 1. A system for extracting a gaseous fluid to be analyzed from a process environment, comprising: a probe for extracting said gaseous fluid, the probe comprising: a first tubular element, which can be positioned within the interior of the process environment, the first tub
The invention claimed is: 1. A system for extracting a gaseous fluid to be analyzed from a process environment, comprising: a probe for extracting said gaseous fluid, the probe comprising: a first tubular element, which can be positioned within the interior of the process environment, the first tubular element having at one end a gas aspiration opening and defining an internal cavity, and a second tubular element extending within the cavity of the first tubular element, the second tubular element being operable to inject the gaseous fluid into the interior cavity towards the aspiration opening of the first tubular element, and into the process environment; aspiration means for aspirating the gaseous fluid from the process environment through the cavity of the first tubular element of the probe, take off means connected to the aspiration means for taking off a fraction of the gaseous fluid, the take off means being further connected to an analyzer; and re-injection means for re-injecting the gaseous fluid into the process environment through the second tubular element, a compressor having an aspiration side and a delivery side, wherein said aspiration means and the re-injection means share the compressor; wherein the first tubular element is in fluid communication with a control valve, the control valve being selectively operable to fluidly connect said first tubular element with one of the aspiration side or said delivery side of the compressor; and wherein the second tubular element is in fluid communication with the delivery side of said compressor through a reservoir, the second tubular element being throttled in such a way to accelerate the gaseous fluid flowing through it and, at the same time, to allow an accumulation of the gaseous fluid upstream within said reservoir, wherein in an aspiration condition, the gaseous fluid is aspirated through the first tubular element and is partially re-injected through the second tubular element and partially accumulated by the reservoir, and in a back washing condition, the accumulated gaseous fluid is released by the reservoir through the first tubular element by selective activation of the control valve. 2. A system according to claim 1, wherein the end of the second tubular element disposed on a process environment side of the aspiration opening, is provided with a nozzle. 3. A system according to claim 1, in which the first and second tubular element are coaxial. 4. A system according to claim 3, further comprising connector elements, pierced nuts and gas tight seals operable to assemble the first and second tubular element and to render the second tubular element slidable with respect to the first tubular element. 5. A system according to claim 1, further comprising a cooling jacket disposed around the first tubular element. 6. A system according to claim 5, wherein the cooling jacket is disposed in such a way as to define an inter space interposed between the jacket and the first tubular element. 7. A system according to claim 5, wherein the cooling jacket is assembled in a separable manner from the first tubular element of the probe. 8. A system according to claim 5, wherein the cooling jacket is connected in fluid communication with a low temperature refrigerator with a closed fluid circuit. 9. A system according to claim 1, further comprising a shielding element disposed in proximity to the aspiration opening. 10. A system according to claim 1, further comprising decanter means and drying means disposed downstream of the probe in such a way as further to reduce the dust and the condensate in the gas. 11. A system for extracting a gaseous fluid to be analyzed from a process environment, comprising: a probe for extracting said gaseous fluid, comprising a first tubular element, which can be positioned within the interior of the process environment, the first tubular element having at one end a gas aspiration opening and defining an internal cavity, and a second tubular element extending within the cavity of the first tubular element, the second tubular element being operable to inject the gaseous fluid into the interior cavity towards the aspiration opening of the first tubular element and from there again into the process environment; aspiration means for aspirating the gaseous fluid from the process environment through the cavity of the first tubular element of the probe; take off means connected to the aspiration means for taking off a fraction of the gaseous fluid, the take off means being further connected to analyzer means; re-injection means for re-injecting the gaseous fluid into the process environment through the second tubular element; and a vacuometer connected to the first tubular element of the probe and a manometer connected to the second tubular element of the probe for monitoring the operation conditions of the probe; wherein said aspiration means and the re-injection means share compressor means, said compressor means having an aspiration side and a delivery side, wherein the first tubular element is fluidly connected to control valve means operable to fluidly connect said first tubular element selectively with one of the aspiration side and said delivery side of the compressor means; and wherein the second tubular element is disposed in fluid communication with the delivery side of said compressor means through a reservoir, the second tubular element being throttled in such a way to accelerate the gaseous fluid flowing through it and, at the same time, to allow an accumulation of the gaseous fluid upstream within said reservoir; wherein in an aspiration condition, the gaseous fluid is aspirated through the first tubular element and is partially re-injected through the second tubular element and partially accumulated by the reservoir, and in a back washing condition, the gaseous fluid is released by the reservoir through the first tubular element by activation of the control valve means. 12. A method for extracting and re-injecting a gaseous fluid from and to a process environment with a probe for extracting said gaseous fluid, the probe comprising a first tubular element positionable within the interior of the process environment, the first tubular element having at one end a gas aspiration opening and defining an internal cavity; and a second tubular element extending within the cavity of the first tubular element, the second tubular element being operable to inject the gaseous fluid into the interior of the cavity towards the aspiration opening of the first tubular element and into the process environment, the method comprising: aspirating the gaseous fluid from the process environment through the cavity of the first tubular element of the probe, taking off a fraction of the gaseous fluid for analyzing the gaseous fluid, re-injecting a first portion of the gaseous fluid into the process environment through the second tubular element of the probe, accumulating a second portion of the gaseous fluid; performing back washing, wherein the accumulated gaseous fluid is released into the process environment through the first tubular element. 13. A method to claim 12, wherein the back washing step is performed cyclically.
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