CN106093317A - Miniature VOC test chamber - Google Patents
Miniature VOC test chamber Download PDFInfo
- Publication number
- CN106093317A CN106093317A CN201610698712.4A CN201610698712A CN106093317A CN 106093317 A CN106093317 A CN 106093317A CN 201610698712 A CN201610698712 A CN 201610698712A CN 106093317 A CN106093317 A CN 106093317A
- Authority
- CN
- China
- Prior art keywords
- test
- chamber
- nacelle
- experimental cabin
- gas circuit
- 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.)
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Classifications
-
- 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
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—Specially adapted to detect a particular component
- G01N33/0047—Specially adapted to detect a particular component for organic compounds
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/38—Diluting, dispersing or mixing samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- 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
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure, temperature
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a kind of miniature VOC test chamber, including base, the heater being installed in base and experimental cabin, described experimental cabin includes testing nacelle, bottom and top cover, gas circuit shunting chamber it is provided with between test nacelle and bottom, it is provided with water conservancy diversion chamber between test nacelle and bottom, gas circuit shunting chamber is provided with several gas circuit tap holes being connected with water conservancy diversion chamber, the bottom of test nacelle is provided with several experimental cabin air inlets being connected with water conservancy diversion chamber, the upper surface of bottom and the lower surface of top cover are equipped with arc surface, base is provided with the air inlet being connected with gas circuit shunting chamber, top cover is provided with and the sampling steam vent being connected in experimental cabin body.Achieve multiple spot air inlet, and from bottom to top, the circular arc inwall along test nacelle mixes with the air in experimental cabin uniformly, and from the sample that sampling steam vent is taken, volatile organic matter concentration is consistent with the concentration of volatile organic matter in the gas in experimental cabin, reducing test error, accuracy of detection is high.
Description
Technical field
The present invention relates to a kind of volatile organic matter detection equipment, a kind of miniature VOC test chamber
Structure improve.
Background technology
Along with improving constantly of people's living standard, people there has also been the biggest raising to the requirement of environmental quality, especially
It is the environmental index to living environment, to ensure that the health of people is not injured by noxious substances such as formaldehyde.And a lot of indoor material
Material and product all contain the noxious substances such as formaldehyde, healthy for guarantee people, need to benzene contained by indoor material and product,
Release rate and the release characteristics of the volatile organic matter such as toluene, formaldehyde (VOC) detect, and especially enter in certain hot environment
Row detection, thus obtain qualified indoor material and product, make people have a good living environment.
Traditional miniature VOC test chamber is to be provided with an air inlet and a sampling steam vent, air inlet and sampling on top cover
Steam vent is simultaneously located on top cover, and such structure exists following defect: air inlet is arranged on top cover, and is provided only with one
Air inlet, is single-point air inlet, can not be with experimental cabin in the gas of sampling process peripheral entrance flows into experimental cabin from top to bottom
Interior gas mix homogeneously, and the uneven easy generation dead angle of experimental cabin endogenous cause of ill gas flowing, can cause in experimental cabin top
The concentration of the volatile organic matter in gas less than the concentration of the volatile organic matter in the gas in experimental cabin bottom, therefore from
Volatile organic matter in gas in the deviation of concentration of volatile organic matter experimental cabin in the sampling sample that taken of steam vent
, there is bigger test error, greatly in the accuracy of detection reducing miniature VOC test chamber in the actual value of concentration.
Summary of the invention
It is an object of the invention to overcome drawbacks described above of the prior art, it is provided that one can make gas mixing in experimental cabin
Uniformly, so that the concentration of volatile organic matter from the sampling sample that taken of steam vent and the volatilization in the gas in experimental cabin
Property organic concentration consistent, test error can be substantially reduced, improve the miniature VOC test chamber of accuracy of detection.
For achieving the above object, the technical scheme that the present invention provides is as follows:
A kind of miniature VOC test chamber, including base, also includes being installed in the heater in described base and experimental cabin, institute
Stating heater to arrange round described experimental cabin, described experimental cabin includes testing nacelle, being installed in the bottom bottom test nacelle
And it is installed in the top cover testing nacelle top, it is provided with gas circuit shunting chamber, described examination between described test nacelle and described bottom
Being provided with water conservancy diversion chamber between hatch checking body and described bottom, described gas circuit shunting chamber is provided with several and is connected with described water conservancy diversion chamber
Logical gas circuit tap hole, the bottom of described test nacelle is provided with several experimental cabin air inlets being connected with described water conservancy diversion chamber
Hole, the upper surface of described bottom is provided with the first arc surface, and the lower surface of described top cover is provided with the second arc surface, described test nacelle
Inner bag be arc-shaped, described base is provided with and the described gas circuit shunting air inlet that is connected of chamber, this air inlet and source of the gas it
Between connect and have the sampling steam vent that trachea, described top cover be provided with and be connected in described experimental cabin body.
Furthermore, described air inlet is equiped with the second air inlet pipe joint, at source of the gas, is equiped with the first air inlet pipe
Joint, one end of described trachea is connected with described first air inlet pipe joint, the other end of described trachea and described second air inlet pipe
Joint connects.
Furthermore, described sampling steam vent being equiped with sampling tube joint, described top cover is provided with for connecting solid
Fixed top cover screw.
Furthermore, described bottom and described test nacelle are formed in one or split molding, and described base is provided with
Fixing trip bolt it is connected with described bottom.
Furthermore, the first sealing ring it is equiped with between described bottom and described base.
Furthermore, it is equiped with the second sealing ring between described top cover and described test nacelle.
Furthermore, described heater is electric heater, and the bottom of described base is equiped with and is electrically connected with described heater
The heater binding post connect.
Furthermore, the lower surface of the described inwall of test nacelle, the upper surface of bottom and top cover all scribbles anti-absorption
Coating.
Furthermore, described gas circuit tap hole is uniformly at intervals on described bottom.
Furthermore, described experimental cabin air inlet is uniformly at intervals on the sidewall of described test nacelle.
Compared with prior art, the beneficial effects of the present invention is: by being provided with gas circuit between test nacelle and bottom
Shunting chamber, is provided with water conservancy diversion chamber between test nacelle and bottom, and gas circuit shunting chamber is provided with several and water conservancy diversion chamber phase
The gas circuit tap hole of connection, the bottom of test nacelle is provided with several experimental cabin air inlets being connected with water conservancy diversion chamber, bottom
Upper surface be provided with the first arc surface, the lower surface of top cover is provided with the second arc surface, and the inner bag of test nacelle is arc-shaped, base
Being provided with the air inlet being connected with gas circuit shunting chamber, top cover is provided with and the sampling steam vent being connected in experimental cabin body.Source of the gas
In trachea enters into gas circuit shunting chamber, described trachea is scalable, and beneficially the cleaning of inner bag and maintenance, enter into gas circuit
The gas of shunting chamber is entered in water conservancy diversion chamber by several gas circuit tap holes, then several tests from test nacelle
Cabin air inlet enters in experimental cabin, it is achieved that multiple spot air inlet, and from bottom to top, uniform along the circular arc inwall of test nacelle
Mixing with the air in experimental cabin, the design of described first arc surface, the second arc surface and inner bag arc-shaped can improve gas stream
Dynamic direction, in making experimental cabin, gas flows evenly, without dead angle.Make the volatility from the sample that sampling steam vent is taken organic
The concentration of thing is consistent with the concentration of the volatile organic matter in the gas in experimental cabin, can be substantially reduced test error, detection essence
Du Genggao.
Accompanying drawing explanation
Fig. 1 is the perspective view of experimental cabin described in the embodiment of the present invention；
Fig. 2 is the sectional view of miniature VOC test chamber described in the embodiment of the present invention.
Detailed description of the invention
In order to further appreciate that the structure of the present invention, feature and other purposes, attached in conjunction with appended preferred embodiment
Describing in detail as follows with accompanying drawing, this accompanying drawing embodiment described is merely to illustrate technical scheme, and non-limiting
Invention.
With reference to Fig. 1, Fig. 2, figure shows a kind of miniature VOC test chamber, including base 10, also includes being installed in the described end
Heater 20 in seat 10 and experimental cabin 30, described heater 20 is arranged round described experimental cabin 30, can be equably to test
Cabin 30 is heated, and described experimental cabin 30 includes testing nacelle 31, being installed in the bottom 32 bottom test nacelle 31 and be installed in
The top cover 33 on test nacelle 31 top, is provided with gas circuit shunting chamber 40 between described test nacelle 31 and described bottom 32, described
Being provided with water conservancy diversion chamber 50 between test nacelle 31 and described bottom 32, described gas circuit shunting chamber 40 is provided with several and leads with described
The gas circuit tap hole 41 that stream chamber 50 is connected, the bottom of described test nacelle 31 is provided with several and described water conservancy diversion chamber 50 phase
The experimental cabin air inlet 311 of connection, the upper surface of described bottom 32 is provided with the first arc surface 150, the lower surface of described top cover 33
Being provided with the second arc surface 160, the inner bag of described test nacelle 31 is arc-shaped, and described base 10 is provided with and described gas circuit branch chamber
The air inlet 11 that room 40 is connected, is connected between this air inlet 11 and source of the gas and has trachea 60, and described top cover 33 is provided with and described examination
The sampling steam vent 331 being connected in hatch checking body 31, this sampling steam vent 331 is for taking when reaching and setting test period
Sample.
Wherein, described air inlet 11 is equiped with the second air inlet pipe joint 100, at source of the gas, is equiped with the first air inlet pipe connects
110, one end of described trachea 60 is connected with described first air inlet pipe joint 110, the other end of described trachea 60 and described the
Two air inlet pipe joints 100 connect, and as preferably, described trachea 60 is spiral capillary trachea.
Being equiped with sampling tube joint 120 on described sampling steam vent 331, described top cover 33 is provided with for connecting fixing
Top cover screw 130.
Described bottom 32 is formed in one or split molding with described test nacelle 31, and described base 10 is provided with described
Bottom 32 connects fixing trip bolt 140.
In order to strengthen gas circuit shunting chamber 40 and the sealing of experimental cabin 30 so that it is become an airtight space, the end of at
It is equiped with the first sealing ring 70 between lid 32 and described base 10, between top cover 33 and described test nacelle 31, is equiped with second
Sealing ring 80.
In the present embodiment, described heater 20 is electric heater, and the bottom of described base 10 is equiped with and described heater
The heater binding post 90 of 20 electrical connections.By the power line of external power source being connected with heater binding post 90, after energising
Heater 20 can be made to generate heat.
It is also preferred that the left the lower surface at inwall, the upper surface of bottom 32 and the top cover 33 of described test nacelle 31 all scribbles anti-
Absorbent coating.The volatile organic matter absorption that can prevent in experimental cabin 30 in gas is at the test inwall of nacelle 31, bottom 32
On the lower surface of upper surface and top cover 33, improve accuracy of detection further.
It is also preferred that the left described gas circuit tap hole 41 is uniformly at intervals on described bottom 32, described experimental cabin air inlet 311 is spaced
It is distributed on the sidewall of described test nacelle 31.The gas making outside entrance mixes more uniform with the gas in experimental cabin 30,
Guarantee the concentration of volatile organic matter from the sample that sampling steam vent 331 is taken and the volatility in the gas in experimental cabin 30
Organic concentration is consistent, reduces test error, thus improves accuracy of detection.
In process of the test, open top cover 33, detected article are placed in experimental cabin 30, top cover 33, source of the gas
Access the first air inlet pipe joint 110, in the gas circuit shunting chamber 40 that trachea 60 enters between base 10 and bottom 32, described
Trachea 60 is scalable, beneficially the cleaning of inner bag and maintenance, and the gas entered in gas circuit shunting chamber 40 is put down by several
The gas circuit tap hole 41 being all distributed enters in the water conservancy diversion chamber 50 between bottom 32 and test nacelle 31, then by test nacelle 31
It is internal that several experimental cabin air inlets 311 being evenly distributed on sidewall enter experimental cabin 30, it is achieved that multiple spot air inlet, and from
Lower and on, mix with the air in experimental cabin 30 uniformly along test nacelle 31 circular arc inwall, described first arc surface 150, the
The design of two arc surfaces 160 and inner bag arc-shaped can improve gas flow direction, and in making experimental cabin 30, gas flows evenly, nothing
Dead angle, finally the concentration of the volatile organic matter from the sampling sample that taken of steam vent 331 with in the gas in experimental cabin 30
The concentration of volatile organic matter is consistent, thus is substantially reduced test error, improves accuracy of detection.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment
Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify,
All should be the substitute mode of equivalence, within being included in protection scope of the present invention.
Claims (10)
1. a miniature VOC test chamber, including base (10), it is characterised in that: also include being installed in described base (10)
Heater (20) and experimental cabin (30), described heater (20) is arranged round described experimental cabin (30), described experimental cabin (30)
The bottom (32) including test nacelle (31), being installed in test nacelle (31) bottom and the top being installed in test nacelle (31) top
Lid (33), is provided with gas circuit shunting chamber (40), described test nacelle between described test nacelle (31) and described bottom (32)
(31) and being provided with water conservancy diversion chamber (50) between described bottom (32), described gas circuit shunting chamber (40) is provided with several and leads with described
The gas circuit tap hole (41) that stream chamber (50) is connected, the bottom of described test nacelle (31) is provided with several and described diversion cavity
The experimental cabin air inlet (311) that room (50) is connected, described base (10) is provided with and is connected with described gas circuit shunting chamber (40)
Air inlet (11), be connected between this air inlet (11) and source of the gas and have trachea (60), described top cover (33) to be provided with and described test
The sampling steam vent (331) being connected in nacelle (31).
Miniature VOC test chamber the most according to claim 1, it is characterised in that: the upper surface of described bottom (32) is provided with
One arc surface (150).
Miniature VOC test chamber the most according to claim 1, it is characterised in that: the lower surface of described top cover (33) is provided with
Two arc surfaces (160).
Miniature VOC test chamber the most according to claim 1, it is characterised in that: described bottom (32) and described test nacelle
(31) being formed in one or split molding, described base (10) is provided with and is connected fixing trip bolt with described bottom (32)
(140)。
Miniature VOC test chamber the most according to claim 4, it is characterised in that: described bottom (32) and described base (10)
Between be equiped with the first sealing ring (70).
Miniature VOC test chamber the most according to claim 1, it is characterised in that: described top cover (33) and described test nacelle
(31) the second sealing ring (80) it is equiped with between.
Miniature VOC test chamber the most according to claim 1, it is characterised in that: the inwall of described test nacelle (31), bottom
(32) upper surface and the lower surface of top cover (33) all scribble anti-absorbent coating.
Miniature VOC test chamber the most according to claim 1, it is characterised in that: described gas circuit tap hole (41) is uniformly at intervals
On described bottom (32).
Miniature VOC test chamber the most according to claim 1, it is characterised in that: described experimental cabin air inlet (311) interval is all
Cloth is on the sidewall of described test nacelle (31).
Miniature VOC test chamber the most according to claim 1, it is characterised in that: described trachea (60) is spiral capillary gas
Pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698712.4A CN106093317A (en) | 2016-08-20 | 2016-08-20 | Miniature VOC test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610698712.4A CN106093317A (en) | 2016-08-20 | 2016-08-20 | Miniature VOC test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106093317A true CN106093317A (en) | 2016-11-09 |
Family
ID=58070328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610698712.4A Pending CN106093317A (en) | 2016-08-20 | 2016-08-20 | Miniature VOC test chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106093317A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831043A (en) * | 2017-12-05 | 2018-03-23 | 上海新漫传感技术研究发展有限公司 | The sampler of tritiated water sampling bottle and tritiated water sampler |
| CN108828145A (en) * | 2018-05-24 | 2018-11-16 | 东莞市升微机电设备科技有限公司 | A kind of miniature VOC test chamber of welding |
| CN113834901A (en) * | 2020-06-23 | 2021-12-24 | 拓荆科技股份有限公司 | Gas mixing effect detection device and detection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3716226B2 (en) * | 2001-04-18 | 2005-11-16 | 三菱マテリアル資源開発株式会社 | Volatile organic compound removal system |
| CN101672837A (en) * | 2009-09-29 | 2010-03-17 | 清华大学 | Double-chamber system used for detecting emission characteristics of volatile organic compounds of indoor building materials |
| CN102323112A (en) * | 2011-08-19 | 2012-01-18 | 东莞市升微机电设备科技有限公司 | Flow-guiding air duct structure of volatile organic matter detection system |
| CN103675123A (en) * | 2013-11-27 | 2014-03-26 | 江苏省环境监测协会 | Test method for sampling efficiency of volatile organic compounds in air and special device |
| CN204101534U (en) * | 2014-07-31 | 2015-01-14 | 东北林业大学 | Miniature VOC testing laboratory system |
| CN205982230U (en) * | 2016-08-20 | 2017-02-22 | 东莞市升微机电设备科技有限公司 | Micro VOC test chamber |
-
2016
- 2016-08-20 CN CN201610698712.4A patent/CN106093317A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3716226B2 (en) * | 2001-04-18 | 2005-11-16 | 三菱マテリアル資源開発株式会社 | Volatile organic compound removal system |
| CN101672837A (en) * | 2009-09-29 | 2010-03-17 | 清华大学 | Double-chamber system used for detecting emission characteristics of volatile organic compounds of indoor building materials |
| CN102323112A (en) * | 2011-08-19 | 2012-01-18 | 东莞市升微机电设备科技有限公司 | Flow-guiding air duct structure of volatile organic matter detection system |
| CN103675123A (en) * | 2013-11-27 | 2014-03-26 | 江苏省环境监测协会 | Test method for sampling efficiency of volatile organic compounds in air and special device |
| CN204101534U (en) * | 2014-07-31 | 2015-01-14 | 东北林业大学 | Miniature VOC testing laboratory system |
| CN205982230U (en) * | 2016-08-20 | 2017-02-22 | 东莞市升微机电设备科技有限公司 | Micro VOC test chamber |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831043A (en) * | 2017-12-05 | 2018-03-23 | 上海新漫传感技术研究发展有限公司 | The sampler of tritiated water sampling bottle and tritiated water sampler |
| CN107831043B (en) * | 2017-12-05 | 2024-01-12 | 上海新漫传感科技有限公司 | Tritiated water sampling bottle and sampling device of tritiated water sampler |
| CN108828145A (en) * | 2018-05-24 | 2018-11-16 | 东莞市升微机电设备科技有限公司 | A kind of miniature VOC test chamber of welding |
| CN113834901A (en) * | 2020-06-23 | 2021-12-24 | 拓荆科技股份有限公司 | Gas mixing effect detection device and detection method |
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Application publication date: 20161109 |
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