WO2017056123A1 - Gas odorization analysis device and method. - Google Patents
Gas odorization analysis device and method. Download PDFInfo
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- WO2017056123A1 WO2017056123A1 PCT/IT2016/000224 IT2016000224W WO2017056123A1 WO 2017056123 A1 WO2017056123 A1 WO 2017056123A1 IT 2016000224 W IT2016000224 W IT 2016000224W WO 2017056123 A1 WO2017056123 A1 WO 2017056123A1
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- WIPO (PCT)
- Prior art keywords
- electromagnetic radiation
- compartment
- flow cell
- gas
- collimating
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- 238000004458 analytical method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 12
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 96
- 230000033228 biological regulation Effects 0.000 claims description 13
- 239000003205 fragrance Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 83
- 238000001228 spectrum Methods 0.000 description 8
- 238000004587 chromatography analysis Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 230000009965 odorless effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/05—Flow-through cuvettes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
A gas odorization analysis device (100) comprising a flow cell (1) composed of: a body (11) defining a compartment (12), at least one duct (2, 3) in communication with the compartment (12) to introduce a gas into the compartment and let a gas out from the compartment (12) of the flow cell, at least one inlet (5) to introduce electromagnetic radiation in the compartment (12), at least one opening (6) for letting the electromagnetic radiation out from the compartment (12); said device (100) also comprises a luminous source (4) coupled with said inlet (5) to introduce electromagnetic radiation inside said compartment (12) of the flow cell and a receiver (9) coupled to said outlet (6) to analyze the electromagnetic radiation passing through said compartment that contains the gas for which the odorization level is to be detected.
Description
Description
Gas odorization analysis device and method.
The present patent application for industrial invention relates to gas odorization analysis device and method. The reference sector is the gas distribution sector. In particular, the application field is the odorization of odorless gases.
Odorization is a process used to add substances with a penetrating odor in odorless gases in order to make it possible to smell the gas. Especially important is the odorization of the methane distributed in housings and industries. A substance known as odorant is added to methane, which is an odorless gas, to give a typically garlic-like odor to the gas. Such odor makes it possible to detect the presence of methane in the air before hazardous conditions are created because of explosion risk and toxicity. After odorization, it is necessary to analyze the gas to evaluate the effective presence of odorant in the gas.
So far the gas odorization analysis is performed with a gas chromatographic instrumental method, which provides for using a device to determine the gas odorization level, measuring the concentration of odorant in the gas volume unit.
The device used to apply the gas chromatographic method is an electrochemical detector with electrodes enclosed between semi permeable membranes and not immersed in the electrolyte.
Measurements are made on the field, with direct sampling, meaning that the device is connected directly to the gas ducts.
Although they can be used in explosion-risk areas because they do not use a flame, the gas chromatographic method and the device for applying the gas chromatographic method require a high stabilization time before a measurement can be made.
Moreover, the measurement with the gas chromatographic method is made by introducing a continuous constant gas flow in the device for
applying the gas chromatographic method. Consequently, the gas chromatographic method requires large quantities of gas to measure the odorant contained in the gas.
The purpose of the present invention is to overcome the drawbacks of the prior art, by disclosing a gas odorization analysis device and method that can be applied on the field with direct sampling, also in explosion-risk areas, rapidly and using a limited gas amounts.
Another purpose of the invention is to disclose a gas odorization analysis device and method that are efficient and reliable.
The gas odorization analysis device of the invention comprises:
- a flow cell comprising:
- a body defining a compartment;
- at least one duct in communication with the compartment to introduce a gas in the compartment and let a gas out from the compartment of the flow cell;
- at least one electromagnetic radiation inlet to let the electromagnetic radiation enter the compartment of the flow cell;
- at least one electromagnetic radiation outlet to let the electromagnetic radiation out from the compartment of the flow cell;
- an electromagnetic radiation source coupled to said electromagnetic radiation inlet to introduce electromagnetic radiation in said compartment of the flow cell;
- a receiver coupled to said electromagnetic radiation output to analyze the luminous spectrum of the electromagnetic radiation that passes through said compartment with the gas to be analyzed and detect the presence of an odorant in said gas.
In particular, said electromagnetic radiation outlet can coincide with said electromagnetic radiation inlet.
For the sake of clarity, the description of the gas odorization analysis device according to the present invention continues with reference to the attached drawings, which only have an illustrative, not limiting value, wherein:
Fig. 1 is an axonometric view of the gas odorization analysis device
according to the present invention, showing with a block diagram the connection of the analysis device to a gas system;
Fig. 2 is an axial sectional view of the device of Fig. 1 ; and
Fig. 3 is an axial sectional view of the device of Fig. 1 wherein collimating means and focusing means are not provided.
With reference to Figs. 1 , 2 and 3, the gas odorization analysis device according to the invention is disclosed, which is generally indicated with reference numeral (100).
With reference to Figs. 1 , 2 and 3, the device (100) comprises a flow cell (1) made of stainless steel comprising a cylindrical body (11) and a compartment (12) obtained in axial position inside the body (11) of the flow cell.
The body (11) comprises a cylindrical wall (15), a first ending wall (13) and a second ending wall (14) that close the cylindrical part (15) of the body.
The flow cell (1) comprises a gas inlet duct (2) and a gas outlet duct (3) intended to be connected to a gas system (I) to be controlled. The gas inlet and outlet ducts (2, 3) extend radially in the lateral wall (15) of the body (11) of the flow cell and communicate with the compartment (12) of the flow cell. The gas iniet and outlet ducts (2, 3) are provided with corresponding inlet and outlet mouths (21 , 31) disposed outside the body (11) to receive gas flow hoses (25, 35) connected to the gas system (I). The gas inlet duct (2) is disposed in proximal position to the first ending wall (13). The gas outlet duct (2) is disposed in proximal position to the second ending wall (14).
The device (100) comprises regulations means (22, 32) to regulate the flow and pressure of a gas. The regulation means (22, 32) are disposed in the gas flow hoses (25, 35) connected to the gas inlet and outlet ducts (2, 3), outside the flow cell (1), in correspondence of points where the gas is taken from the gas system (I) to be controlled.
The regulation means (22, 32) may comprise a pressure reduction system and/or a valve to regulate the flow rate of the incoming/outgoing gas to/from the flow cell. The valve of the regulation means can be manually or electrically operated.
With reference to Fig. 3, the compartment (12) of the flow cell comprises:
- a collimating chamber (16) arranged in proximal position to the first ending wall (13),
- a focusing chamber (18) arranged in proximal position to the second ending wall (14), and
- a filling chamber (17) arranged between the collimating chamber (16) and the focusing chamber (18).
The chambers (16, 18, 17) are communicating chambers with cylindrical shape and have the same axis. The filling chamber (17) is longer than the collimating chamber (16) and the focusing chamber (18). The collimating chamber (16) and the focusing chamber (18) have the same diameter. The filling chamber (17) has a lower diameter than the collimating chamber (16) and the focusing chamber (18) in such manner to form stop surfaces (19, 19').
The gas inlet and outlet ducts (2, 3) communicate with the filling chamber (17).
With reference to Fig. 1 , an electromagnetic radiation inlet (5) is disposed on the first ending wall (13) of the flow cell to let the electromagnetic radiation enter the collimating chamber (16). An electromagnetic radiation source (4) intended to generate an electromagnetic radiation is coupled to the electromagnetic radiation inlet (5). The emission frequency of the electromagnetic radiation source (4) is selected in such manner that the electromagnetic radiation source (4) interacts with an odorant. According to a preferred embodiment, the electromagnetic radiation source (4) is of deep-UV type with frequency comprised between 180 and 300 nm.
An electromagnetic radiation outlet (6) is positioned on the second ending wall (14) of the flow cell to let the electromagnetic radiation out from the compartment of the flow cell.
A receiver (9) is coupled to the electromagnetic radiation outlet (6) to analyze the electromagnetic radiation coming out from the compartment (12)
of the flow cell (1). Preferably, the receiver (9) consists in a spectrum analyzer that performs a quantitative analysis of the odorant contained in the gas and prints the results of said quantitative analysis. The analysis is made on the spectrum of the electromagnetic radiation coming out from the electromagnetic radiation outlet (6).
The electromagnetic radiation source (4) and the receiver (9) can be coupled to the electromagnetic radiation inlet (5) and to the electromagnetic radiation outlet (6) by means of direct coupling or by means of electromagnetic radiation transmission means (51 , 61) such as optical cables, wave guides or fiber optics.
In case of electromagnetic radiation transmission means, the device (100) comprises collimating means (7) and focusing means (8) respectively for collimating and focusing the electromagnetic radiation in the compartment (12) of the flow cell. The collimating means (7) are arranged inside the collimating chamber (16). The focusing means (8) are arranged inside the focusing chamber (18).
The collimating means (7) and the focusing means (8) are fixed inside the collimating chamber (16) and the focusing chamber (18) by means of adhesives applied on the edge of the collimating means (7) and of the focusing means (8). Alternatively, the collimating means (7) and the focusing means (8) have a threaded annular edge that is screwed into a female thread obtain in the collimating chamber (16) and in the focusing chamber (18).
With reference to Fig. 2, the collimating means (7) comprise a first collimating lens (71), a second collimating lens (72) and a third collimating lens (73).
The first collimating lens (71) is arranged in proximal position to the electromagnetic radiation inlet (5), the third collimating lens (73) is arranged in proximal position to the filling chamber, stopped against the stop surface (19), and the second collimating lens (72) is arranged between the first collimating lens (71) and the third collimating lens (73).
The first collimating lens (71) have a planar-convex shape, meaning that the first collimating lens (71) comprises a planar surface facing the
electromagnetic radiation inlet (5) and a convex surface facing the second collimating lens (72).
The second collimating lens (72) has a planar-concave shape, meaning that the second collimating lens (72) comprises a planar surface facing the first collimating lens (71) and a concave surface facing the third collimating lens (73).
The third collimating lens (73) has a planar-planar shape, meaning that the third collimating lens (73) comprises a first planar surface facing the second collimating lens (72) and a second planer surface facing the filling chamber (17).
The collimating lenses (71 , 72, 73) have a focal axis that coincides with the axis of the filling chamber (17). In view of the above, the collimating lenses (71 , 72, 73) generate a rectilinear, coherent and collimated luminous beam that is diffused axially inside the filling chamber (17) of the flow cell, avoiding multiple reflections on the walls of the filling chamber (17).
The focusing means (8) comprise a first focusing lens (81) and a second focusing lens (82).
The first focusing lens (81) is arranged in proximal position to the electromagnetic radiation outlet (6) and the second focusing lens (82) is arranged in proximal position to the filling chamber, stopped against the stop surface (19').
The first focusing lens (81) has a planar-convex shape, meaning that the first focusing lens (81) comprises a planar surface facing the electromagnetic radiation outlet (6) and a convex surface facing the second focusing lens (82).
The second focusing lens (82) has a planar-planar shape, meaning that the second focusing lens (82) comprises a first planar surface facing the first focusing lens (81) and a second planer surface facing the filling chamber (17).
The focusing lenses (81 , 82) are arranged in such manner to define a focal point outside the compartment of the flow cell. Such a focal point can be defined inside the receiver (9). If electromagnetic radiation transmission
means (61) are provided and connected to the receiver (9), the focal point can be defined inside the electromagnetic radiation transmission means (61). In this way, the electromagnetic radiation beam that passes through the filling chamber (17) is focused inside the receiver (9).
The gas odorization analysis method using the device (100) provides for switching on the electromagnetic radiation source (4) to generate an electromagnetic radiation.
The electromagnetic radiation generated by the electromagnetic radiation source (4) passes through the electromagnetic radiation inlet (5) and enters the collimating chamber (16) of the compartment (12). The electromagnetic radiation passes through the collimating lenses (71 , 72, 73) and is collimated in a rectilinear electromagnet radiation that passes through the filling chamber (17). The electromagnetic radiation beam reaches the focusing chamber (18) wherein it is focused in a focal point inside the receiver (9).
The flow cell (1) is connected to a gas conduit (not shown) by means of the inlet and outlet mouths (21 , 31).
The compartment (12) of the flow cell is ventilated in order to clean the compartment (12) from any residues that may interfere with the results of the analysis.
The first regulation means (22) is actuated in such manner to let the gas pass from the gas conduit to the inlet duct (21) of the flow cell. The gas enters the filling chamber (17) through the gas inlet duct (2).
When the gas has filled the filling chamber (17) of the flow cell completely, the first regulation means (22) is actuated to stop the gas flow towards the filling chamber (17). The gas is confined inside the filling chamber (17) due to the third collimating lens (73) and the second focusing lens (82) that laterally close the filling chamber (17).
The electromagnetic radiation that enters the filling chamber (17) from the collimating chamber (16) passes through the gas. The electromagnetic radiation passes through the filling chamber (17) and hits the gas molecules contained in the filling chamber (17). According to the chemical composition
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of the gas, the electromagnetic radiation is absorbed by the gas molecules at a given wavelength. Therefore the gas molecules change the luminous spectrum of the electromagnetic radiation. As a result, the electromagnetic radiation that reaches the focusing chamber (18), after passing through the gas in the filling chamber (17), has a different spectrum compared to the spectrum of the electromagnetic radiation coming from the collimating chamber (16).
The electromagnetic radiation reaches the focusing chamber (18), wherein, by means of the focusing means (8), it is focused in a focal point outside the compartment of the flow ceil. Such a focal point can be defined inside the receiver (9). If electromagnetic radiation transmission means (61) are provided and connected to the receiver (9), the focal point can be defined inside the electromagnetic radiation transmission means (61) that transmit the electromagnetic radiation focused in the receiver (9).
In the receiver (9) the spectrum of the electromagnetic radiation is analyzed in order to evaluate the chemical composition of the gas and, consequently, the efficacy of the gas odorization process.
The second regulation means (32) is actuated to let the gas out from the filling chamber (17) of the flow cell.
When the gas has left the filling chamber (17) of the flow cell, the second regulation means (32) is actuated to close the gas outlet mouth (31).
The device (100) and the method of the invention can be applied in explosion-risk areas to evaluate the efficacy of the gas odorization process, making a direct sampling measurement for in-field analysis of explosion-risk areas, obtaining a quick measurement without the long stabilization time required by the gas chromatography method.
Moreover, the gas odorization analysis can be made by closing the first regulation means (22) in order to confine the gas in the filling chamber (17). In this way, the quantity of gas taken from the gas system (I) to be controlled can be reduced with respect to the quantity of gas required by the gas chromatographic method.
Although reference is made to a flow cell (1) with a cylindrical shape,
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the flow cell (1) can have a different shape.
Although reference is made to collimating means (7) comprising a first lens (71), a second lens (72) and a third lens (73), said collimating means (7) may comprise a different number of lenses or lenses with different shapes from the ones described above.
Although reference is made to focusing means (8) comprising a first focusing lens (81) and a second focusing lens (82), said focusing means (8) may comprise a different number of lenses or lenses with different shapes from the ones described above.
Although in the description reference is made to a gas inlet duct (2) and a gas outlet duct (3), the flow cell may comprise only one duct wherefrom the gas enters the compartment (12) and comes out from the compartment (12).
Although an electromagnetic radiation inlet (5) and an electromagnetic radiation outlet (6) are described in the description, the electromagnetic radiation may enter and come out from a single opening situated on the flow cell (1). In such a case the flow cell (1) would comprise a reflecting wall inside the compartment (12) to reflect the electromagnetic radiation coming from the opening and direct it again towards the opening.
Although reference is made to a receiver consisting in a spectrum analyzer, said receiver may be replaced by an optical transducer with control electronics.
Although not shown in the figures the electromagnetic radiation source (4) may be arranged in proximal position to the flow cell or directly coupled to the flow cell. If the electromagnetic radiation source (4) is directly coupled to the flow cell (1), the flow cell does not need any collimating means.
Although not shown in the figures, the receiver (9) can be arranged in proximal position to the flow cell (1) or directly coupled to the flow cell. If the receiver (9) is directly coupled to the flow cell (1), the flow cell does not need any focusing means.
Although not shown in the figures, the collimating means (7) may be arranged in proximal position to the electromagnetic radiation source (4) for
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collimating the electromagnetic radiation inside the compartment (12) and the focusing means (8) may be arranged in proximal position to the receiver (9) for focusing the electromagnetic radiation in the receiver (9).
Claims
Claims
1) Gas odorization analysis device (100) comprising:
- a flow cell (1) comprising:
- a body (11) defining a compartment (12);
- at least one duct (2, 3) communicating with the compartment (12) for the inlet and outlet of a gas in the compartment (12) of the flow cell;
- at least one electromagnetic radiation inlet (5) to let the electromagnetic radiation enter the compartment (12) of the flow cell;
- at least one electromagnetic radiation outlet (6) to let the electromagnetic radiation out from the compartment (12) of the flow cell
- an electromagnetic radiation source (4) coupled to said electromagnetic radiation inlet (5) to introduce an electromagnetic radiation in said compartment of the flow cell,
- a receiver (9) coupled to said electromagnetic radiation outlet (6) to analyze the electromagnetic radiation that passes through said compartment containing the gas to be analyzed and detect the presence of odorant in said gas.
2) The device (100) of claim 1 comprising:
- collimating means (7) arranged inside the compartment (12) of the flow cell in proximal position to the electromagnetic radiation inlet
(5) for collimating the electromagnetic radiation inside the compartment (12), and
- focusing means (8) arranged inside the compartment (12) of the flow cell in proximal position to the electromagnetic radiation outlet (6) for focusing the electromagnetic radiation outside the compartment (12) of the flow cell.
3) The device (100) of any one of the preceding claims, wherein the compartment (12) of the flow cell has a cylindrical shape and is arranged in axial position in the flow cell (1).
4) The device (100) of any one of the preceding claims, wherein the body
(11) of the flow cell comprises a first ending wall (13) and a second ending wall (14); said compartment (12) comprising:
- a collimating chamber (16) disposed in proximal position to the first ending wall (13),
- a focusing chamber (18) arranged in proximal position to the second ending wall (14), and
- a filling chamber (17) arranged between the collimating chamber (16) and the focusing chamber (18);
said chambers (16, 18, 17) being communicating chambers with a cylindrical shape; said chambers (16, 8, 17) having the same axis.
5) The device (100) of claim 4, wherein said collimating chamber (16) and said focusing chamber (18) have a higher diameter than the filling chamber (17).
6) The device (100) of claims 4 or 5 when depending on claim 2, wherein said collimating means (7) comprise at least one collimating lens (71 , 72,
73) having a focal axis that coincides with the axis of the filling chamber (17); said focusing means (8) comprise at least one focusing lens (81, 82) arranged in such manner to define a focal point outside the compartment
(12) of the flow cell.
7) The device (100) of claim 6, wherein said filling chamber (17) is separated from the collimating chamber (16) and from the focusing chamber (18) respectively by means of a collimating lens (73) and a focusing lens (82).
8) The device (100) of any one of claims 2 to 7, wherein
said collimating means comprise a first collimating lens (71) arranged in proximal position to the electromagnetic radiation inlet (5), a third collimating lens (73) arranged near the filling chamber (17) stopped against a stop surface (19), and a second collimating lens (72) arranged between the first collimating lens (71) and the third collimating lens (73);
said focusing means comprising a first focusing lens (81) arranged in proximal position to the electromagnetic radiation outlet (6) and a second focusing lens (82) arranged near the filling chamber (17),
stopped against a stop surface (19').
9) The device (100) of claim 1 comprising:
- collimating means (7) situated near the electromagnetic radiation source (4) for collimating the electromagnetic radiation inside the compartment (12), and
- focusing means (8) situated near the receiver (9) for focusing the electromagnetic radiation in the receiver (9).
10) The device (100) of any one of the preceding claims, comprising regulation means (22, 32) arranged in gas flow hoses (25, 35) connected to the gas inlet and outlet ducts (2, 3) for regulating the flow and the pressure of the gas incoming and/or outgoing to/from said flow cell.
11) The device (100) of any one of the preceding claims, wherein the luminous source (4) is of deep-UV type with a frequency comprised between 180 nm and 300 nm.
12) The device (100) of any one of the preceding claims, wherein the flow cell (1) is made of stainless steel.
13) Gas odorization analysis method comprising the following steps:
- ventilating the compartment (12) of the flow cell for cleaning said compartment (12);
- switching on a luminous source (4) to generate electromagnetic radiation;
- sending the electromagnetic radiation generated by the electromagnetic radiation source (4) into a compartment (12) of a flow cell (1);
- opening a regulation means (22) situated in a gas inlet duct (2) to introduce gas in the compartment (12) of the flow cell;
- closing the regulation means (22) situated in the gas inlet duct (2) to interrupt the introduction of gas in the compartment (12) of the flow cell;
- making the electromagnetic radiation pass through the gas contained in the compartment of the flow cell;
- taking and analyzing the electromagnetic radiation that has passed
through the gas in the compartment of the flow cell by means of a receiver (9);
- opening a regulation means (32) situated in a gas outlet duct (3) to let the gas out from the compartment (12) of the flow cell.
14) The method of claim 13, wherein the step consisting in passing the electromagnetic radiation through the gas in the compartment (12) of the flow cell provides for the following steps:
- collimating the electromagnetic radiation inside the compartment (12) of the flow cell by means of collimating means (7);
- making the collimated electromagnetic radiation pass through the gas contained in the compartment (12) of the flow cell;
- focusing the electromagnetic radiation outside the compartment (12) of the flow cell by means of focusing means (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUB20153979 | 2015-09-28 | ||
| IT1020150000055628 | 2015-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017056123A1 true WO2017056123A1 (en) | 2017-04-06 |
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ID=55070058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/IT2016/000224 WO2017056123A1 (en) | 2015-09-28 | 2016-09-28 | Gas odorization analysis device and method. |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | IT201600096720A1 (en) |
| WO (1) | WO2017056123A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2667698C1 (en) * | 2017-07-31 | 2018-09-24 | Общество С Ограниченной Ответственностью "Газпром Трансгаз Краснодар" | Method for determining degree of gas odorization, odorized with a mixture of natural mercaptans |
| RU207432U1 (en) * | 2021-04-13 | 2021-10-28 | Федеральное государственное казённое военное образовательное учреждение высшего образования "Военная академия радиационной, химической и биологической защиты имени Маршала Советского Союза С.К. Тимошенко" Министерства обороны Российской Федерации | Test chamber for assessing the odor of a gas-air mixture of odorants |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2667698C1 (en) * | 2017-07-31 | 2018-09-24 | Общество С Ограниченной Ответственностью "Газпром Трансгаз Краснодар" | Method for determining degree of gas odorization, odorized with a mixture of natural mercaptans |
| RU207432U1 (en) * | 2021-04-13 | 2021-10-28 | Федеральное государственное казённое военное образовательное учреждение высшего образования "Военная академия радиационной, химической и биологической защиты имени Маршала Советского Союза С.К. Тимошенко" Министерства обороны Российской Федерации | Test chamber for assessing the odor of a gas-air mixture of odorants |
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| IT201600096720A1 (en) | 2018-03-27 |
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