CN205785986U - A kind of gas collecting device - Google Patents
A kind of gas collecting device Download PDFInfo
- Publication number
- CN205785986U CN205785986U CN201620688593.XU CN201620688593U CN205785986U CN 205785986 U CN205785986 U CN 205785986U CN 201620688593 U CN201620688593 U CN 201620688593U CN 205785986 U CN205785986 U CN 205785986U
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- Prior art keywords
- casing
- diaphragm seal
- passage
- sealing
- collecting device
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Abstract
The utility model discloses a kind of gas collecting device, including for deposit the casing of plant, case lid, acquisition port, for alleviating passage and the getter device of casing internal gas pressure, the top of casing is provided with upper shed, case lid is removably mounted to the top of casing, and the upper shed of casing is sealed, acquisition port and passage are arranged on case lid, acquisition port and passage all connect inner chamber and the external world of casing, sealing-plug it is provided with in acquisition port, being provided with closing device in passage, getter device is by the gas in acquisition port collection tank.Above-mentioned gas harvester simple in construction, easy to use, it is possible to well the air inside and outside casing to be completely cut off, it is ensured that to gather the pure property of gas, can also ensure that the stability of body inside and outside air pressure simultaneously, there is the highest practicality.
Description
Technical field
This utility model relates to a kind of gas collecting device.
Background technology
Along with running down of greenhouse effect, the research of climate change has become a focus, and Agricultural greenhouse gas discharges
Accounting in the 14% of whole world total release, higher than the ratio shared by transport service, the greenhouse gases main component of agriculture field discharge is
Methane (CH4) and nitrous oxide (N2O), account for more than 75%, though N2O composition trace in an atmosphere, its potential heating effect is about
Therefore the greenhouse gases produced in agricultural system are detected by 190～270 times of CO2, particularly to Different Crop and relevant
The N2O release of system carries out Accurate Determining, crop system impact on whole world change be may be better understood, can be government department
Relevant Decision and Global Carbon trade foundation is provided, therefore, the most comprehensively collecting gas is the important step realizing detection work
Suddenly.But, the collection device of traditional approach is all to seal, and there is not air intake installation, is merely able to draw in the device sealed
Gas, along with the carrying out drawn, the air pressure in sealing device can taper into, and in device, the concentration of gas also can diminish, can be right
Final experimental result produces impact, causes the inaccurate of numerical value.
Utility model content
For above-mentioned technical problem, this utility model provides a kind of simple in construction, easy to use, it is possible to well to casing
Inside and outside air completely cuts off, it is ensured that gathers the pure property of gas, can also ensure that the stability of body inside and outside air pressure simultaneously
Gas collecting device.
For solving above-mentioned technical problem, technical solution adopted in the utility model is: provide a kind of gas collecting device,
Including for depositing the casing of plant, case lid, acquisition port, filling for the passage and air-breathing alleviating described casing internal gas pressure
Putting, the top of described casing is provided with upper shed, and described case lid is removably mounted to the top of described casing, and by described case
The upper shed of body seals, and described acquisition port and described passage are arranged on described case lid, described acquisition port and described logical
Pore all connects inner chamber and the external world of described casing, is provided with sealing-plug, is provided with in described passage in described acquisition port
Closing device, described getter device collects the gas in described casing by described acquisition port.
This utility model is owing to using above technical scheme, and its technique effect reached is: the gas that this utility model provides
Body harvester, plant is integrally placed in the casing sealed by case lid, is sealed by sealing-plug, air-breathing under acquisition port normal condition
The suction end of device can be through the gas in sealing-plug collection tank, by the first diaphragm seal and second diaphragm seal of closing device
The passage closed, processes closed state in normal state, is only in unlatching when casing internal gas pressure is less than ambient pressure
State, alleviates the air pressure in casing, and above-mentioned gas harvester simple in construction is easy to use, it is possible to well in casing
Outer air completely cuts off, it is ensured that gathers the pure property of gas, can also ensure that the stability of body inside and outside air pressure simultaneously, tool
There is the highest practicality.
More preferably, in technique scheme, described casing and described case lid are all made of clear material.
Above-mentioned further scheme is used to provide the benefit that: casing and case lid are made of clear material so that after sealing
Casing has good light transmission and ultraviolet penetrance, it is ensured that illumination in seal case and uitraviolet intensity are with outer
Boundary is identical, reduces the different impact on final result of environment, it is ensured that the accuracy of final data.
More preferably, in technique scheme, described closing device includes the first diaphragm seal and the second diaphragm seal, described
The fixing end of one diaphragm seal and described second diaphragm seal is each attached on the inwall of described passage, described first diaphragm seal and institute
The free end stating the second diaphragm seal contacts with each other, and by described vent seal.
Above-mentioned further scheme is used to provide the benefit that: the first diaphragm seal of closing device and fixing of the second diaphragm seal
End is arranged on the inwall of passage, and the free end of the first diaphragm seal and the second diaphragm seal contacts with each other vent seal, really
Protect passage under normal condition to be sealed by closing device, meanwhile, also ensure that cabinets cavity and the external world are in isolation shape
State.
More preferably, in technique scheme, described first diaphragm seal is more than with the length sum of described second diaphragm seal
The diameter of described passage is long.
Use above-mentioned further scheme to provide the benefit that: the first diaphragm seal and the length of the second diaphragm seal and more than ventilation
The diameter in hole is long, it is ensured that the free end of the first diaphragm seal and the second diaphragm seal can preferably contact with each other, it is possible to preferably
Being closed by passage, isolation cabinets cavity is with extraneous.
More preferably, in technique scheme, the free end of described first diaphragm seal and described second diaphragm seal is to close
The direction of described cabinets cavity tilts.
Above-mentioned further scheme is used to provide the benefit that: the free end of the first diaphragm seal and the second diaphragm seal is near case
The direction of intracoelomic cavity tilts, it is ensured that closing device is merely able to when casing internal gas pressure is less than ambient pressure to the side of cabinets cavity
To opening, gas is entered casing by the external world and alleviates the air pressure in casing, and further, the first diaphragm seal and the second diaphragm seal are along logical
The axis of pore is symmetrical, it is possible to play better seal effect.
More preferably, in technique scheme, described first diaphragm seal and described second diaphragm seal are by elastomeric material
Make.
Above-mentioned further scheme is used to provide the benefit that: the first diaphragm seal and the second diaphragm seal are by elastomeric material
Make, there is certain elasticity, it is possible to preferably open to the direction of casing interior wall when casing internal gas pressure is less than ambient pressure,
During or infinite approach identical with ambient pressure at casing internal gas pressure, the free end of the first diaphragm seal and the second diaphragm seal can be at self
Elastic effect home position next time, closes passage.
More preferably, in technique scheme, the cross section of described acquisition port is circular, and described sealing-plug is cylindric.
It is provided with annular recess on the inwall of described acquisition port, the lateral wall of described sealing-plug is provided with and described annular recess phase
The collar flange joined, described collar flange is installed in described annular recess.
Above-mentioned further scheme is used to provide the benefit that: sealing-plug and the mating shapes of acquisition port so that sealing-plug
Can preferably be arranged in acquisition port, acquisition port is closed, in the collar flange that sealing-plug lateral wall is arranged and acquisition port
The annular recess arranged on tube wall matches, and collar flange is installed in annular recess, while playing sealing effectiveness, also rises
Arrive certain fixation, it is to avoid getter device is the generation of sealing-plug dropping situations in collecting gas process.
More preferably, in technique scheme, described getter device is syringe.
Above-mentioned further scheme is used to provide the benefit that: using syringe as getter device, obtaining good air-breathing effect
While Guo, it is also possible to read the volume of draw gas easily, use also enhanced convenience, coordinate and syringe phase
The syringe needle of coupling, it is possible to preferably through sealing-plug.
More preferably, in technique scheme, described sealing-plug is made up of elastomeric material, the middle part of described sealing-plug
Being provided with the through hole that the suction end for described syringe penetrates, described through hole is in closed state.
Above-mentioned further scheme is used to provide the benefit that: the sealing-plug being made up of elastomeric material, it is possible to preferably
Acquisition port is closed, the setting of sealing-plug middle through-hole, facilitate the collection of getter device, simultaneously as sealing-plug is
Being made up of elastomeric material, through hole can be in the suction end of closed state, only getter device in normal state and penetrate logical
Kong Houcai can open, and further ensure that the pure property of gas in casing, also ensure that the accuracy of final data.
Accompanying drawing explanation
The utility model is described in further detail below in conjunction with the accompanying drawings:
Fig. 1 is the schematic diagram of the gas collecting device that this utility model provides；
Fig. 2 is the longitudinal section in Fig. 1 at acquisition port；
Fig. 3 is the longitudinal section in Fig. 1 at passage.
Detailed description of the invention
As shown in Figure 1 to Figure 3, the gas collecting device that this utility model provides, including the casing for depositing plant
110, case lid 120, acquisition port 130, for alleviating passage 140 and the getter device 150 of casing 110 internal gas pressure, casing 110
Top be provided with upper shed, case lid 120 is removably mounted to the top of casing 110, and by close for the upper shed of casing 110
Sealing, acquisition port 130 and passage 140 are arranged on case lid 120, and acquisition port 130 and passage 140 all connect casing 110
Inner chamber and the external world, be provided with sealing-plug 160 in acquisition port 130, in passage 140, be provided with closing device 170, air-breathing fills
Put 150 by the gas in acquisition port 130 collection tank 110.
As a kind of embodiment, casing 110 and case lid 120 are all made of clear material.Casing 110 and case lid
120 are made of clear material so that the casing 110 after sealing has good light transmission and ultraviolet penetrance, it is ensured that
Illumination and uitraviolet intensity in seal case 110 are identical with the external world, reduce the different impact on final result of environment, really
Protect the accuracy of final data.Further, casing 110 and case lid 120 are made by adiabator, it is ensured that inside and outside casing 110
Temperature identical, it is to avoid the temperature in casing 110 is higher than ambient temperature causes the inaccurate of numerical value.
As a kind of embodiment, closing device 170 includes the first diaphragm seal 172 and the second diaphragm seal 174, and first is close
The fixing end of mounting 172 and the second diaphragm seal 174 is each attached on the inwall of passage 140, and the first diaphragm seal 172 and second is close
The free end of mounting 174 contacts with each other, and is sealed by passage 140.First diaphragm seal 172 and second of closing device 170 is close
The fixing end of mounting 174 is arranged on the inwall of passage 140, the first diaphragm seal 172 and free end phase of the second diaphragm seal 174
Passage 140 is sealed by contact mutually, it is ensured that under normal condition, passage 140 is sealed by closing device 170, meanwhile, also
Ensure that casing 110 inner chamber and the external world are in state of isolation.
As a kind of embodiment, the length sum of the first diaphragm seal 172 and the second diaphragm seal 174 is more than passage
The diameter of 140 is long.First diaphragm seal 172 and the length of the second diaphragm seal 174 and long more than the diameter of passage 140, it is ensured that
The free end of the first diaphragm seal 172 and the second diaphragm seal 174 can preferably contact with each other, it is possible to preferably by passage 140
Closing, isolation casing 110 inner chamber is with extraneous.
As a kind of embodiment, the free end of the first diaphragm seal 172 and the second diaphragm seal 174 is near casing 110
The direction of inner chamber tilts.The free end of the first diaphragm seal 172 and the second diaphragm seal 174 inclines to the direction near casing 110 inner chamber
Tiltedly, it is ensured that closing device 170 is merely able to when casing 110 internal gas pressure is less than ambient pressure beat to the direction of casing 110 inner chamber
Opening, gas is entered casing 110 by the external world and alleviates the air pressure in casing 110, and further, the first diaphragm seal 172 and second seals
Sheet 174 is symmetrical along the axis of passage 140, it is possible to play better seal effect.
As a kind of embodiment, the first diaphragm seal 172 and the second diaphragm seal 174 are made up of elastomeric material.The
One diaphragm seal 172 and the second diaphragm seal 174 are made by elastomeric material, have certain elasticity, it is possible to preferably at case
Open to the direction of casing 110 interior wall, in casing 110 internal gas pressure and ambient pressure phase when body 110 internal gas pressure is less than ambient pressure
With or during infinite approach, the free end of the first diaphragm seal 172 and the second diaphragm seal 174 can restore next time in the effect of natural resiliency
Position, closes passage 140.
As a kind of embodiment, the cross section of acquisition port 130 is circular, and sealing-plug 160 is cylindric.Acquisition port
It is provided with annular recess 125 on the inwall of 130, the lateral wall of sealing-plug 160 is provided with the ring matched with annular recess 125
Shape flange 165, collar flange 165 is installed in annular recess 125.Sealing-plug 160 and the mating shapes of acquisition port 130, make
Obtain sealing-plug 160 can preferably be arranged in acquisition port 130, acquisition port 130 is closed, sealing-plug 160 lateral wall is arranged
Collar flange 165 and acquisition port 130 inner tubal wall on the annular recess 125 that arranges match, collar flange 165 is installed on ring-type
In groove 125, while playing sealing effectiveness, also play certain fixation, it is to avoid getter device 150 is being collected
The generation of sealing-plug 160 dropping situations in gas process.
As a kind of embodiment, getter device 150 is syringe.Using syringe as getter device 150, obtaining
While good inspiratory effects, it is also possible to read the volume of draw gas easily, use also enhanced convenience, coordinate
The syringe needle matched with syringe, it is possible to preferably through sealing-plug 160.
As a kind of embodiment, sealing-plug 160 is made up of elastomeric material, and the middle part of sealing-plug 160 is provided with
The through hole penetrated for the suction end of syringe, through hole is in closed state.The sealing-plug 160 being made up of elastomeric material,
Preferably acquisition port 130 can be closed, the setting of sealing-plug 160 middle through-hole, facilitate adopting of getter device 150
Collection, simultaneously as sealing-plug 160 is made up of elastomeric material, through hole can be in closed state in normal state, only
The suction end of getter device 150 just can be opened after penetrating through hole, it is ensured that the pure property of gas in casing 110, also ensure that
The accuracy of whole data.Further, in the casing 110 of closing, it is provided with several convection fans, for by the gas in casing 110
Body sufficiently mixes, it is ensured that the gas that getter device 150 is drawn is identical with the gas in closed box 110.
This utility model is owing to using above technical scheme, and its technique effect reached is: the gas that this utility model provides
Body harvester, plant is integrally placed in the casing sealed by case lid, is sealed by sealing-plug, air-breathing under acquisition port normal condition
The suction end of device can be through the gas in sealing-plug collection tank, by the first diaphragm seal and second diaphragm seal of closing device
The passage closed, processes closed state in normal state, is only in unlatching when casing internal gas pressure is less than ambient pressure
State, alleviates the air pressure in casing, and above-mentioned gas harvester simple in construction is easy to use, it is possible to well in casing
Outer air completely cuts off, it is ensured that gathers the pure property of gas, can also ensure that the stability of body inside and outside air pressure simultaneously, tool
There is the highest practicality.
It can be that professional and technical personnel in the field realize or use that above-mentioned embodiment is intended to illustrate this utility model, right
Above-mentioned embodiment is modified and be will be apparent from for those skilled in the art, therefore this utility model includes
But being not limited to above-mentioned embodiment, any the claims or description of meeting describes, and meets and principles disclosed herein
With novelty, the method for inventive features, technique, product, within each falling within protection domain of the present utility model.
Claims (10)
1. a gas collecting device, it is characterised in that: include the casing (110) for depositing plant, case lid (120), gather
Mouthful (130), be used for alleviating the passage (140) of described casing (110) internal gas pressure and getter device (150), described casing
(110) top is provided with upper shed, and described case lid (120) is removably mounted to the top of described casing (110), and by institute
The upper shed stating casing (110) seals, and described acquisition port (130) and described passage (140) are arranged on described case lid (120)
On, described acquisition port (130) and described passage (140) all connect inner chamber and the external world of described casing (110), described in adopt
Being provided with sealing-plug (160) in Ji Kou (130), be provided with closing device (170) in described passage (140), described air-breathing fills
The suction end putting (150) collects the gas in described casing (110) inner chamber through described sealing-plug (160).
2. gas collecting device as claimed in claim 1, it is characterised in that: described casing (110) and described case lid (120)
All it is made of clear material.
3. gas collecting device as claimed in claim 1, it is characterised in that: described closing device (170) includes the first sealing
Sheet (172) and the second diaphragm seal (174), the fixing end of described first diaphragm seal (172) and described second diaphragm seal (174) is the most solid
It is scheduled on the inwall of described passage (140), described first diaphragm seal (172) and the free end of described second diaphragm seal (174)
Contact with each other, and described passage (140) is sealed.
4. gas collecting device as claimed in claim 3, it is characterised in that: described first diaphragm seal (172) and described second
The length sum of diaphragm seal (174) is more than the diameter of described passage (140).
5. gas collecting device as claimed in claim 4, it is characterised in that: described first diaphragm seal (172) and described second
The free end of diaphragm seal (174) tilts near the direction of described casing (110) inner chamber.
6. gas collecting device as claimed in claim 5, it is characterised in that: described first diaphragm seal (172) and described second
Diaphragm seal (174) is made by elastomeric material.
7. the gas collecting device as described in any one of claim 1 to 6, it is characterised in that: described acquisition port (130) transversal
Face is circular, and described sealing-plug (160) is cylindric.
8. gas collecting device as claimed in claim 7, it is characterised in that: it is provided with on the inwall of described acquisition port (130)
Annular recess (125), the lateral wall of described sealing-plug (160) is provided with ring-type with what described annular recess (125) matched
Flange (165), described collar flange (165) is installed in described annular recess (125).
9. the gas collecting device as described in any one of claim 1 to 6, it is characterised in that: described getter device (150) is note
Emitter.
10. gas collecting device as claimed in claim 9, it is characterised in that: described sealing-plug (160) is by elastomeric material
Making, the middle part of described sealing-plug (160) is provided with the through hole that the suction end for described syringe penetrates, and described through hole is in
Closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688593.XU CN205785986U (en) | 2016-06-30 | 2016-06-30 | A kind of gas collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620688593.XU CN205785986U (en) | 2016-06-30 | 2016-06-30 | A kind of gas collecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205785986U true CN205785986U (en) | 2016-12-07 |
Family
ID=58126030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620688593.XU Expired - Fee Related CN205785986U (en) | 2016-06-30 | 2016-06-30 | A kind of gas collecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205785986U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576538A (en) * | 2017-09-15 | 2018-01-12 | 中国科学院东北地理与农业生态研究所 | The device and acquisition method that volatile organic matter caused by the indoor rustic exchange of quantitative collection pollutes |
| CN109030120A (en) * | 2018-07-16 | 2018-12-18 | 阜阳师范学院 | Plant metabolism discharges imflammable gas collection and detection device |
| CN112229953A (en) * | 2020-10-09 | 2021-01-15 | 建德南方水泥有限公司 | Denitration ammonia escape detection device |
-
2016
- 2016-06-30 CN CN201620688593.XU patent/CN205785986U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576538A (en) * | 2017-09-15 | 2018-01-12 | 中国科学院东北地理与农业生态研究所 | The device and acquisition method that volatile organic matter caused by the indoor rustic exchange of quantitative collection pollutes |
| CN109030120A (en) * | 2018-07-16 | 2018-12-18 | 阜阳师范学院 | Plant metabolism discharges imflammable gas collection and detection device |
| CN112229953A (en) * | 2020-10-09 | 2021-01-15 | 建德南方水泥有限公司 | Denitration ammonia escape detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170630 |