CN115138226A - Gas dilution smells system - Google Patents
Gas dilution smells system Download PDFInfo
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- CN115138226A CN115138226A CN202210909040.2A CN202210909040A CN115138226A CN 115138226 A CN115138226 A CN 115138226A CN 202210909040 A CN202210909040 A CN 202210909040A CN 115138226 A CN115138226 A CN 115138226A
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- dilution
- gas
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- way valve
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- 239000012895 dilution Substances 0.000 title claims abstract description 97
- 238000010790 dilution Methods 0.000 title claims abstract description 97
- 230000035943 smell Effects 0.000 title claims description 10
- 238000005070 sampling Methods 0.000 claims abstract description 24
- 235000013305 food Nutrition 0.000 description 11
- 230000001953 sensory effect Effects 0.000 description 7
- 239000003085 diluting agent Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/83—Forming a predetermined ratio of the substances to be mixed by controlling the ratio of two or more flows, e.g. using flow sensing or flow controlling devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0001—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 by organoleptic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0018—Sample conditioning by diluting a gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides a gas dilution sniffing system, which comprises a sampling gas bag, a dilution gas bottle, a vacuum pump, a pressure reducing valve, a primary dilution module, a secondary dilution module, an output selection module and a sniffing module, wherein the sampling gas bag is connected with the sampling gas bottle; the sampling air bag is connected with the three-way valve and the vacuum pump through pipelines, and then one pipeline is connected with the output selection module; the other pipeline is connected with the primary dilution module; after the dilution gas bottle is connected with a pressure reducing valve through a pipeline, one pipeline is connected with a three-way valve connected with a sampling gas bag; one path is connected with the sniffing module; the other path is respectively connected to the primary dilution module and the secondary dilution module; the primary dilution module is connected with the secondary dilution module; the output selection module is respectively connected with the secondary dilution module and the sniffing module. According to the gas dilution and sniffing system, the peculiar smell source can be divided and diluted for many times through the primary dilution module and the secondary dilution module, and the risk of uneven gas mixing is reduced.
Description
Technical Field
The invention belongs to the technical field of gas treatment, and particularly relates to a gas dilution and sniffing system.
Background
The food flavor is formed by mixing seven kinds of tastes of sweet, sour, bitter, spicy, salty, astringent and fresh, and is also formed by a plurality of compounds giving aroma to the food, so that the food flavor is very complex. The food sensory analysis is the first pass for food enterprises to judge whether products are qualified or not. Meanwhile, food sensory analysis is also a professional core class in many food professional colleges and universities. The food sensory analysis type is divided into personal inspection and collective inspection according to working environments, the requirements of the two working environments are different, the requirements of the personal inspection are independently completed, the collective inspection requires all members to complete discussion, some food enterprises and many professional colleges do not purchase relatively professional food sensory analysis equipment, unqualified experimental environments can greatly influence food sensory analysis results, and sniffing is an important step in sensory analysis, but no special sniffing system for a sensory laboratory exists at present.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a gas dilution and smell system, which can divide and dilute odor sources for multiple times through a primary dilution unit and a secondary dilution unit, and reduces the risk of uneven gas mixing.
The technical solution of the invention is as follows:
a gas dilution sniffing system is characterized in that: the gas dilution and smell system comprises a sampling gas bag, a dilution gas bottle, a vacuum pump, a pressure reducing valve, a primary dilution unit, a secondary dilution unit, an output selection unit and a smell unit; the sampling air bag is connected with the three-way valve and the vacuum pump through pipelines, and one pipeline is connected with the output selection unit; the other pipeline is connected with the primary dilution unit; the dilution gas bottle is connected with a pressure reducing valve through a pipeline, and one pipeline is connected with a three-way valve connected with a sampling gas bag; one path is connected with the sniffing unit; the other path of the water is respectively connected to the primary dilution unit and the secondary dilution unit; the primary dilution unit is connected with the secondary dilution unit; the output selection unit is respectively connected with the secondary dilution unit and the sniffing unit.
Further, the primary dilution unit comprises a flow controller, a check valve, a gas mixing device, a primary buffer tank and a two-way valve; the gas in the sampling gas bag sequentially passes through the two-way valve, the flow controller and the check valve through a pipeline and then enters the gas mixing device; the gas in the dilution gas bottle sequentially passes through the two-way valve, the flow controller and the check valve through a pipeline and then enters the gas mixing device; the gas mixing device is connected with the primary buffer tank.
Further, the second-stage dilution unit comprises a flow controller, a check valve, a gas mixing device, a second-stage buffer tank and a two-way valve; the pipeline in the secondary dilution unit is divided into a first pipeline communicated with mixed gas in the primary buffer tank and a second pipeline communicated with clean air of the dilution gas bottle; the first pipeline and the second pipeline are both connected to the gas mixing device; the secondary buffer tank is connected with the gas mixing device; the first pipeline is sequentially provided with a two-way valve, a flow controller and a check valve; the second pipeline is sequentially provided with a two-way valve, a flow controller and a check valve.
Furthermore, the pipeline in the secondary dilution unit also comprises a third pipeline for humidifying air; the third pipeline is connected to the gas mixing device; and the third pipeline is sequentially provided with a two-way valve, a flow controller, a first check valve, a humidifying device and a second check valve.
Further, the output selection unit comprises a two-way valve, a flow controller, a check valve and a three-way valve which are connected in sequence; the two-way valve is connected with a gas pipeline of the sampling air bag, and the three-way valve is connected with the secondary buffer tank and is connected to the sniffing unit through a pipeline.
Furthermore, the sniffing unit comprises two sniffing ports which are connected in parallel, and each sniffing port is respectively connected with a three-way valve and a two-way valve.
Furthermore, a hygrometer is arranged at the joint of the second pipeline and the third pipeline in the secondary dilution unit and the gas mixing device.
Further, the first-stage buffer tank is also connected with a pressure relief valve, and the pressure relief valve is connected with an exhaust port through a pipeline; and the secondary buffer tank is connected with an exhaust port pipeline through a two-way valve.
According to the gas dilution and sniffing system, the peculiar smell source can be divided and diluted for many times through the primary dilution unit and the secondary dilution unit, the risk of uneven gas mixing is reduced, the dilution proportion range is expanded under a certain flow, the consumption of diluent gas is saved, and the purpose of large-proportion dilution can be achieved. The whole system is provided with a plurality of two-way valves, three-way valve flow controllers and check valves, so that the switching output of pipeline gas under different environmental requirements can be realized, and the stability of the whole pipeline is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the device comprises a sampling air bag 1, a diluent gas bottle 2, a pressure reducing valve 3, a vacuum pump 4, a primary dilution unit 5, a secondary dilution unit 6, an output selection unit 7, a sniffing unit 8, a primary buffer tank 9, a secondary buffer tank 10, a gas mixing device 11, a humidifying device 12, a hygrometer 13, a pressure release valve 14, an exhaust port 15, a two-way valve 16, a three-way valve 17, a flow controller 18 and a check valve 19.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
Referring to fig. 1, the invention provides a gas dilution and sniffing system, which comprises a sampling gas bag 1, a diluent gas bottle 2, a pressure reducing valve 3, a vacuum pump 4, a primary dilution unit 5, a secondary dilution unit 6, an output selection unit 7, a sniffing unit 8, a primary buffer tank 9, a secondary buffer tank 10, a gas mixing device 11, a humidifying device 12, a hygrometer 13, a pressure release valve 14, an exhaust port 15, a two-way valve 16, a three-way valve 17, a flow controller 18 and a check valve 19; after the sampling air bag 1 is connected with the three-way valve 17 and the vacuum pump 4 through pipelines, one pipeline is connected with the output selection unit 7; the other pipeline is connected with the primary dilution unit 5; after the diluent gas bottle 2 is connected with the pressure reducing valve 3 through a pipeline, one path is connected with a three-way valve 17 connected with the sampling gas bag 1; one path is connected with the sniffing unit 8; the other path is respectively connected to the primary dilution unit 5 and the secondary dilution unit 6; the primary dilution unit 5 is connected with the secondary dilution unit 6; the output selection unit 7 is respectively connected with the secondary dilution unit 6 and the sniffing unit 8.
In the invention, the gas in the sampling gas bag 1 can be directly output through a pipeline, or can be mixed with air and diluted by a primary dilution unit 5 and a secondary dilution unit 6 and then output; the clean air in the dilution gas bottle 2 can be selected by a pipeline to be cleaned by a three-way valve 17, can also be mixed with the gas in the sampling gas bag 1 in the primary dilution unit 5, and can also directly enter the secondary dilution unit through a two-way valve 16 to be subjected to secondary dilution or humidification treatment.
The primary dilution unit 5 comprises a flow controller 18, a check valve 19, a gas mixing device 11, a primary buffer tank 9 and a two-way valve 16; the two-way valves 16 are arranged on four pipelines, and each two-way valve 16 is connected with a flow controller 18 and a check valve 19 at the back, wherein one pipeline is a direct connection pipeline, and the flow controller 18 and the check valve 19 can not be arranged. Gas in the sampling gas bag 1 sequentially passes through a two-way valve 16, a flow controller 18 and a check valve 19 through a pipeline and then enters a gas mixing device 11; gas in the dilution gas bottle sequentially passes through the two-way valve 16, the flow controller 18 and the check valve 19 through a pipeline and then enters the gas mixing device 11; after the peculiar smell gas in the sampling air bag 1 and the clean air in the diluent gas bottle 2 are mixed in proportion in the gas mixing device 11, the mixed gas enters the primary buffer tank 9, and then the mixed gas can selectively enter the secondary dilution unit 6, or is directly discharged from the exhaust port 15 through a pipeline by opening the pressure release valve 14 connected with the primary buffer tank 9.
The mixed gas from the first-stage buffer tank 9 enters the second-stage dilution unit 6 through a pipeline. The secondary dilution unit 6 comprises a flow controller 18, a check valve 19, a gas mixing device 11, a secondary buffer tank 10 and a two-way valve 16; the pipeline in the secondary dilution unit 6 is divided into a first pipeline communicated with mixed gas in the primary buffer tank 9 and a second pipeline communicated with clean air of the dilution gas bottle 2; the first pipeline and the second pipeline are both connected to the gas mixing device 11; the secondary buffer tank 10 is connected with a gas mixing device 11; the first pipeline is sequentially provided with a two-way valve 16, a flow controller 18 and a check valve 19; the second pipeline is provided with a two-way valve 16, a flow controller 18 and a check valve 19 in sequence. The pipeline in the secondary dilution unit 6 also comprises a third pipeline for humidifying air; the third pipeline is connected to the gas mixing device 11; the third pipeline is provided with a two-way valve 16, a flow controller 18 and a humidifying device 12 in sequence, and a check valve 19 is arranged at the front and the rear of the humidifying device 12. The gas mixed in the primary dilution unit 5 can be directly mixed in the secondary buffer tank 10, the gas can be humidified through a third pipeline, the treated gas enters the secondary buffer tank 10 again, and the humidity of the humidified gas can be monitored through a hygrometer 13 before entering the secondary buffer tank 10 through the pipeline.
The output selection unit comprises a two-way valve 16, a flow controller 18, a check valve 19 and a three-way valve 17 which are connected in sequence; the two-way valve 16 is connected with the gas pipeline of the sampling gas bag 1, and the three-way valve 17 is connected with the secondary buffer tank 10 and is connected to the sniffing unit 8 through a pipeline. The sniffing unit 8 comprises two sniffing ports connected in parallel, each sniffing port being connected to a three-way valve 17 and a two-way valve 16, respectively. In the system of the invention, four sniffing units are arranged.
Claims (8)
1. A gas dilution smells system which characterized in that: the gas dilution and smell system comprises a sampling gas bag, a dilution gas bottle, a vacuum pump, a pressure reducing valve, a primary dilution module, a secondary dilution module, an output selection module and a smell module; the sampling air bag is connected with the three-way valve and the vacuum pump through pipelines, and one pipeline is connected with the output selection module; the other pipeline is connected with the primary dilution module; the dilution gas bottle is connected with a pressure reducing valve through a pipeline, and one pipeline of the dilution gas bottle is connected with a three-way valve connected with a sampling gas bag; one path is connected with the sniffing module; the other path is respectively connected to the primary dilution module and the secondary dilution module; the primary dilution module is connected with the secondary dilution module; the output selection module is respectively connected with the secondary dilution module and the sniffing module.
2. The gas dilution sniffing system according to claim 1, characterized in that: the primary dilution module comprises a flow controller, a check valve, a gas mixing device, a primary buffer tank and a two-way valve; the gas in the sampling gas bag sequentially passes through the two-way valve, the flow controller and the check valve through a pipeline and then enters the gas mixing device; the gas in the dilution gas bottle sequentially passes through the two-way valve, the flow controller and the check valve through a pipeline and then enters the gas mixing device; the gas mixing device is connected with the primary buffer tank.
3. The gas dilution sniffing system of claim 2, wherein: the second-stage dilution module comprises a flow controller, a check valve, a gas mixing device, a second-stage buffer tank and a two-way valve; the pipeline in the secondary dilution module is divided into a first pipeline communicated with mixed gas in the primary buffer tank and a second pipeline communicated with clean air of the dilution gas bottle; the first pipeline and the second pipeline are both connected to the gas mixing device; the secondary buffer tank is connected with the gas mixing device; the first pipeline is sequentially provided with a two-way valve, a flow controller and a check valve; the second pipeline is sequentially provided with a two-way valve, a flow controller and a check valve.
4. The gas dilution sniffing system according to claim 3, characterized in that: the pipeline in the secondary dilution module also comprises a third pipeline for humidifying air; the third pipeline is connected to the gas mixing device; and the third pipeline is sequentially provided with a two-way valve, a flow controller, a first check valve, a humidifying device and a second check valve.
5. The gas dilution sniffing system according to claim 4, characterized in that: the output selection module comprises a two-way valve, a flow controller, a check valve and a three-way valve which are connected in sequence; the two-way valve is connected with a gas pipeline of the sampling air bag, and the three-way valve is connected with the secondary buffer tank and is connected to the sniffing module through a pipeline.
6. The gas dilution sniffing system according to claim 5, characterized in that: the sniffing module comprises two sniffing ports which are connected in parallel, and each sniffing port is respectively connected with a three-way valve and a two-way valve.
7. The gas dilution sniffing system of claim 6, wherein: and a hygrometer is arranged at the joint of the second pipeline and the third pipeline in the secondary dilution module and the gas mixing device.
8. The gas dilution sniffing system according to claim 7, characterized in that: the first-stage buffer tank is also connected with a pressure relief valve, and the pressure relief valve is connected with an exhaust port through a pipeline; and the secondary buffer tank is connected with an exhaust port pipeline through a two-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210909040.2A CN115138226A (en) | 2022-07-29 | 2022-07-29 | Gas dilution smells system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210909040.2A CN115138226A (en) | 2022-07-29 | 2022-07-29 | Gas dilution smells system |
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| Publication Number | Publication Date |
|---|---|
| CN115138226A true CN115138226A (en) | 2022-10-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210909040.2A Pending CN115138226A (en) | 2022-07-29 | 2022-07-29 | Gas dilution smells system |
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| Country | Link |
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| CN (1) | CN115138226A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203598762U (en) * | 2013-11-15 | 2014-05-21 | 国家电网公司 | Low-concentration two-stage gas distribution system |
| CN106443031A (en) * | 2016-09-30 | 2017-02-22 | 中南林业科技大学 | Bionic smell detection and analysis device based on dynamic gas distribution and detection and analysis method of bionic smell detection and analysis device |
| WO2020125839A1 (en) * | 2018-12-18 | 2020-06-25 | GRID INVENT gGmbH | Electronic element and electrically controlled display element |
| CN113720747A (en) * | 2021-08-31 | 2021-11-30 | 北京航空航天大学 | Aerosol particle dilution system and aerosol particle counting device with same |
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2022
- 2022-07-29 CN CN202210909040.2A patent/CN115138226A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203598762U (en) * | 2013-11-15 | 2014-05-21 | 国家电网公司 | Low-concentration two-stage gas distribution system |
| CN106443031A (en) * | 2016-09-30 | 2017-02-22 | 中南林业科技大学 | Bionic smell detection and analysis device based on dynamic gas distribution and detection and analysis method of bionic smell detection and analysis device |
| WO2020125839A1 (en) * | 2018-12-18 | 2020-06-25 | GRID INVENT gGmbH | Electronic element and electrically controlled display element |
| CN113720747A (en) * | 2021-08-31 | 2021-11-30 | 北京航空航天大学 | Aerosol particle dilution system and aerosol particle counting device with same |
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