CN206648866U - A kind of constant pressure soil air sampling box - Google Patents
A kind of constant pressure soil air sampling box Download PDFInfo
- Publication number
- CN206648866U CN206648866U CN201720405569.5U CN201720405569U CN206648866U CN 206648866 U CN206648866 U CN 206648866U CN 201720405569 U CN201720405569 U CN 201720405569U CN 206648866 U CN206648866 U CN 206648866U
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- sampling box
- gas production
- production casing
- air sampling
- constant pressure
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Abstract
A kind of constant pressure soil air sampling box includes place into the soil at least 35 centimetres of gas production casing (1) and the barometer (2) of measurement gas production casing (1) interior air pressure, the gas production casing (1) accommodates the plastic cement slot (4) of dividing plate (3) being provided with close to the top of soil surface, the dividing plate (3) and slot (4) sealing coordinate, gas held device (5) is provided with the gas production casing (1), the gas held device (5) is located at the aerating device (7) of gas production casing (1) outside via tracheae (6) connection through the gas production casing (1), the tracheae (6) is provided with the air valve for being used for adjusting air pressure, the air valve connection is located at the barometer (2) in the gas production casing (1).
Description
Technical field
Field of environment engineering technology is the utility model is related to, particularly a kind of constant pressure soil air sampling box.
Background technology
In the field test of soil gas discharge, air sampling box method is the most frequently used assay method.But due to gas production process
It can reduce the air pressure in case, accelerate the discharge of gas in soil, often result in over-evaluating or fluctuating for measurement result.It is existing maintain to
The method of interior stable gas pressure is airbag method.I.e. by one be placed in inside air sampling box with the volumetric expansion of atmosphere airbag with
Shrink to ensure the air pressure balance in air sampling box.But the problem of existing is due to that the gas volume gathered every time is small, often
The one thousandth of vasculum or the magnitude of a ten thousandth, the contraction for finding airbag in actual use is not very sensitive.Measure
Result variation it is big, inaccurately.Therefore, how to avoid gas production process from influenceing the gas stabilization of inside soil body, be to need to continue
Solve the problems, such as.
A kind of temperature automatically controlled gas collecting device in field is opened including a bottom surface disclosed in patent document CN204718851U
The transparent air sampling box and the incubator of a sealed set that mouth is set, temperature sensor is provided with transparent air sampling box, is adopted transparent
A fan is respectively equipped with four madial walls of gas tank, several ice chests are provided with incubator, the air entry of an air pump passes through
Gas piping is connected with the inside of incubator, and the gas outlet of air pump is connected by gas piping with the inside of transparent air sampling box
Logical, transparent air sampling box is connected with incubator by a breather line, and fan, air pump, power supply, temperature sensor pass through wire and temperature
Degree controller is connected.The patent realizes automatically controlling for temperature in transparent air sampling box body, but the patent can not be solved due to air pressure
Big, the inaccurate technical problem of measurement result variation caused by unstability.
A kind of farmland gas emissions measurement collector is included from bottom to top disclosed in patent document CN205301015U
The base that sets gradually, increase case and air sampling box；Air sampling box top closure, bottom is open and is stained with the first sealing strip, and four turn
The first sealing buckle is set at angle, air sampling box top and sidepiece are provided with electric fan, thermometer, air sampling box side are provided with the top of air sampling box
Portion is provided with the thief hatch of connection sampler；Increase case open at both ends, top is stained with the second sealing strip, four corners set and taken gas
The second supporting sealing buckle of case buckle；Base and air sampling box open-mouth and increase that bottom portion is corresponding, and base is surrounded by
For discharging water or the cell body of seal, base portion insertion underground, more than ground through hole is uniformly provided with.The patent is adapted to detection high
Bar farmland gas emissions, but the patent can not solve because measurement result variation is big caused by air pressure unstability, no
Accurate technical problem.
A kind of greenhouse gases acquisition system disclosed in patent document CN104062156A, for gathering the greenhouse of river discharge
Gas, it includes gas collector waterborne and the gas storage device being connected with the gas collector waterborne；Its feature
It is：The gas collector waterborne includes air sampling box, gas collection fan, air collecting pipe, battery case, handle and foamed board；It is described to adopt
The outer wall of gas tank is covered with aluminizer, and top is symmetrically equiped with clip；The fixation that can be connected with anchor is connected with the clip
Rope；Gas collection fan is installed in the inner top of the air sampling box, and its flabellum electrically connects upward and with the battery case；The gas production
Manage for be vertically and symmetrically installed in outside the air sampling box top at least one pair of, a pair of described air collecting pipes with the air sampling box
Connection；One of them described air collecting pipe is also associated with the first suction air tube cylinder by flexible pipe；The battery case is installed in described adopt
The outer top of gas tank, its accommodated inside have supplying cell, and outside is provided with power switch；The handle and foamed board are assembled on institute
The lateral wall of air sampling box is stated, the foamed board is located on the downside of the handle and edge is connected with the handle；The gas storage
Device includes gas production bag, and the air inlet/outlet of the gas production bag is equiped with three-way pipe；One of pipeline of the three-way pipe is direct
The gas production bag is connected, another pipeline is connected with the second suction air tube cylinder, and a remaining pipeline passes through flexible pipe and another institute
State air collecting pipe connection；Three pipelines of the three-way pipe are equipped with valve.The patent can form circulation in air sampling box, preferably
Air in air sampling box is mixed, but the patent can not solve because measurement result variation is big caused by air pressure unstability, inaccurately
Technical problem.
Disclosed above- mentioned information is used only for strengthening the understanding to the utility model background in the background section, therefore
The information of prior art known to a person of ordinary skill in the art in not forming home may be included.
Utility model content
In view of the above problems, the utility model implement provide a kind of constant pressure soil air sampling box, isolation under test gas with
While gas exchanges between the soil body, the atmospheric pressure lost in accurate compensation casing, and then the accuracy of measurement result is improved, solve
Due to big, the inaccurate technical problem of measurement result variation caused by air pressure unstability.
The purpose of this utility model is to be achieved by the following technical programs.
Constant pressure soil air sampling box includes placing into the soil air pressure at least 35 centimetres of gas production casing and measurement air sampling box body
Barometer, the gas production casing accommodate the plastic cement slot of dividing plate, the dividing plate and slot being provided with close to the top of soil surface
Sealing coordinates, and is provided with gas held device in the air sampling box body, the gas held device is via through the gas production casing
Tracheae connection be located at the external aerating device of air sampling box, the tracheae is provided with the air valve for being used for adjusting air pressure, and the air valve connects
The barometer being connected in the gas production casing.
In constant pressure soil air sampling box as described above of the present utility model, gas production casing the having by 4-6 millimeters thicks
Machine glass is made, and the gas production casing forms closing space with soil surface.
In constant pressure soil air sampling box as described above of the present utility model, it is provided with the air sampling box body and stirs evenly air sampling box
The fan of internal gas.
In constant pressure soil air sampling box as described above of the present utility model, the gas production wall box is provided with thief hatch,
Syringe connects the thief hatch.
In constant pressure soil air sampling box as described above of the present utility model, the gas held device is flexible
Air bag.
In constant pressure soil air sampling box as described above of the present utility model, the dividing plate is stainless steel plate.
In constant pressure soil air sampling box as described above of the present utility model, the aerating device is pin type aerating device.
In constant pressure soil air sampling box as described above of the present utility model, the air valve is magnetic valve, the magnetic valve
Controller is connected, the controller point connects the barometer.
In constant pressure soil air sampling box as described above of the present utility model, the controller includes general processor, number
Word signal processor, application-specific integrated circuit ASIC or on-site programmable gate array FPGA.
In constant pressure soil air sampling box as described above of the present utility model, the controller is provided with memory, described to deposit
Reservoir, which includes one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable, to be compiled
Journey read-only storage EEPROM.
Constant pressure soil air sampling box of the present utility model passes through filter 4 and water pump 5 will in lysimeter bottom collection salting liquid
Extract back soil depth after salting liquid filtering, ensure not have the loss of moisture weight in weighing process with this, reduction steaming is oozed
Soil salt inside instrument, forms internal circulation system, particularly remove should leaching to deep soil layer salinity for maintenance salt
The observatory control precision of alkali area lysimeter has great significance, constant pressure soil air sampling box measurement accuracy of the present utility model
It is high, reliable and convenient, used especially suitable for varieties in saline-alkali areas.
Described above is only the general introduction of technical solutions of the utility model, in order to cause technological means of the present utility model
It is more clearly understood, reaches the degree that those skilled in the art can be practiced according to the content of specification, and in order to
Above and other objects, features and advantages of the present utility model can be become apparent, below with of the present utility model specific
Embodiment is illustrated.
Brief description of the drawings
By reading the detailed description hereafter in preferred embodiment, the advantages of the utility model is various other and
Benefit will be clear understanding for those of ordinary skill in the art.Figure of description is only used for showing the mesh of preferred embodiment
, and be not considered as to limitation of the present utility model.It should be evident that drawings discussed below is only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.And in whole accompanying drawing, identical part is presented with like reference characters.
In the accompanying drawings：
Fig. 1 is the structural representation according to the constant pressure soil air sampling box of the utility model one embodiment；
Fig. 2 is illustrated according to the dividing plate slot attachment structure of the constant pressure soil air sampling box of the utility model one embodiment
Figure.
Below in conjunction with drawings and examples, the utility model is further explained.
Embodiment
Specific embodiment of the utility model is more fully described below with reference to accompanying drawings.Although this reality is shown in accompanying drawing
With new specific embodiment, it being understood, however, that may be realized in various forms the utility model without that should be illustrated here
Embodiment limited.Conversely, there is provided these embodiments are to be able to be best understood from the utility model, and can incite somebody to action
The scope of the utility model is completely communicated to those skilled in the art.
It should be noted that some vocabulary has been used to censure specific components among specification and claim.Ability
Field technique personnel it would be appreciated that, technical staff may call same component with different nouns.This specification and right
It is required that not in a manner of the difference of noun is used as and distinguishes component, but differentiation is used as with the difference of component functionally
Criterion."comprising" or " comprising " as mentioned in working as in specification in the whole text and claim are an open language, therefore should be solved
It is interpreted into " include but be not limited to ".Specification subsequent descriptions are to implement better embodiment of the present utility model, the right description
It is for the purpose of the rule of specification, is not limited to the scope of the utility model.The scope of protection of the utility model
It is defined when depending on appended claims institute defender.
For ease of the understanding to the utility model embodiment, done below in conjunction with accompanying drawing by taking several specific embodiments as an example into
The explanation of one step, and each accompanying drawing does not form the restriction to the utility model embodiment.
Fig. 1 is the structural representation of the constant pressure soil air sampling box of one embodiment of the present utility model, and the utility model is real
Applying example will be specifically described with reference to Fig. 1.
As shown in figure 1, one embodiment of the present utility model provides a kind of constant pressure soil air sampling box, constant pressure soil gas production
Case includes placing into the soil the barometer 2 of air pressure at least 35 centimetres of gas production casing 1 and measurement gas production casing 1, the air sampling box
Body 1 accommodates the plastic cement slot 4 of dividing plate 3 being provided with close to the top of soil surface, and dividing plate 3 and slot 4 sealing coordinates, described
Gas held device 5 is provided with gas production casing 1, the gas held device 5 connects via the tracheae 6 through the gas production casing 1
The logical aerating device 7 being located at outside gas production casing 1, the tracheae 6 are provided with the air valve for being used for adjusting air pressure, and the air valve connection is located at
The barometer 2 in the gas production casing 1.
The dividing plate slot attachment structure signal of the constant pressure soil air sampling box of the utility model one embodiment as shown in Figure 2
Figure.Slot 4 is located on the inwall of gas production casing 1, and it can have plastic cement to be made so that cooperatively forms sealing structure with dividing plate 3.
On gas production casing 1, according to native face situation, in the bottom of gas production casing 1 in the top of soil surface, casing, dividing plate 3 is inserted.
The surrounding of dividing plate 3 need to completely cut off air exchange with slot 4.After insertion, then carry out gas production work.Air pressure is installed on gas production casing 1
Meter 2, for checking barometric information in gas production casing 1.The barometric information of gas production casing 1 is determined after dividing plate 3 is inserted.In collection gas
After body, atmospheric pressure value is determined again.If atmospheric pressure value twice has differences, the aerating device 7 such as needle tubing is utilized to such as airbag
Gas held device 5 in inflation or air-breathing adjust the volume of gas held device 5, the air pressure in gas production casing 1 is returned to
Level before sampling.
The influence that the utility model discharges for lowering gas production process to soil gas, improves soil gas emissions measurement
Accuracy has improvement.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and the gas production casing 1 is by 4-6 millimeters thicks
Lucite is made, and the gas production casing 1 forms closing space with soil surface.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and is provided with to stir evenly in the gas production casing 1 and is adopted
The fan of gas in gas tank body.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and the side wall of gas production casing 1 is provided with sampling
Mouthful, syringe connects the thief hatch.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and the gas held device 5 is with bullet
The air bag of property.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and the dividing plate 3 is stainless steel plate.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and the aerating device 7 is pin type inflation dress
Put.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and the air valve is magnetic valve, the electromagnetism
Valve connects controller, and the controller point connects the barometer 2.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, the controller include general processor,
Digital signal processor, application-specific integrated circuit ASIC or on-site programmable gate array FPGA.
The embodiment of constant pressure soil air sampling box of the present utility model is preferably, and the controller is provided with memory, described
Memory can including one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable
Program read-only memory EEPROM.
Although embodiment of the present utility model is described above in association with accompanying drawing, the utility model does not limit to
In above-mentioned specific embodiments and applications field, above-mentioned specific embodiment is only schematical, directiveness, without
It is restricted.One of ordinary skill in the art is under the enlightenment of this specification and is not departing from the utility model claims
In the case of the scope protected, the form of many kinds can also be made, these belong to the row of the utility model protection.
Claims (10)
1. a kind of constant pressure soil air sampling box, its at least 35 centimetres gas production casing (1) and measurement gas production casing of including placing into the soil
(1) barometer (2) of interior air pressure, it is characterised in that：
The gas production casing (1) accommodates the plastic cement slot (4) of dividing plate (3), the dividing plate being provided with close to the top of soil surface
(3) coordinate with slot (4) sealing, gas held device (5), the gas held device (5) are provided with the gas production casing (1)
The aerating device (7) of gas production casing (1) outside, the tracheae are located at via tracheae (6) connection through the gas production casing (1)
(6) air valve for being used for adjusting air pressure is provided with, the air valve connection is located at the barometer (2) in the gas production casing (1).
2. constant pressure soil air sampling box according to claim 1, it is characterised in that：The gas production casing (1) is by 4-6 millimeters thicks
Lucite be made, the gas production casing (1) and soil surface form closing space.
3. constant pressure soil air sampling box according to claim 1, it is characterised in that：It is provided with and stirs evenly in the gas production casing (1)
The fan of gas in air sampling box body.
4. constant pressure soil air sampling box according to claim 1, it is characterised in that：Gas production casing (1) side wall is provided with and adopted
Sample mouth, syringe connect the thief hatch.
5. constant pressure soil air sampling box according to claim 1, it is characterised in that：The gas held device (5) be with
The air bag of elasticity.
6. constant pressure soil air sampling box according to claim 1, it is characterised in that：The dividing plate (3) is stainless steel plate.
7. constant pressure soil air sampling box according to claim 1, it is characterised in that：The aerating device (7) is inflated for pin type
Device.
8. constant pressure soil air sampling box according to claim 1, it is characterised in that：The air valve is magnetic valve, the electromagnetism
Valve connects controller, and the controller point connects the barometer (2).
9. constant pressure soil air sampling box according to claim 8, it is characterised in that：The controller include general processor,
Digital signal processor, application-specific integrated circuit ASIC or on-site programmable gate array FPGA.
10. constant pressure soil air sampling box according to claim 9, it is characterised in that：The controller is provided with memory, described
Memory can including one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable
Program read-only memory EEPROM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405569.5U CN206648866U (en) | 2017-04-18 | 2017-04-18 | A kind of constant pressure soil air sampling box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720405569.5U CN206648866U (en) | 2017-04-18 | 2017-04-18 | A kind of constant pressure soil air sampling box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206648866U true CN206648866U (en) | 2017-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720405569.5U Expired - Fee Related CN206648866U (en) | 2017-04-18 | 2017-04-18 | A kind of constant pressure soil air sampling box |
Country Status (1)
| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374366A (en) * | 2018-11-07 | 2019-02-22 | 中国科学院东北地理与农业生态研究所 | A kind of the soil gas acquisition device and its application method of variable volume |
| CN111766121A (en) * | 2020-08-03 | 2020-10-13 | 四川洁承环境科技有限公司 | Air collection equipment for air detection |
| CN114034523A (en) * | 2021-12-02 | 2022-02-11 | 中国科学院东北地理与农业生态研究所 | Constant-pressure greenhouse gas collecting device and collecting method thereof |
-
2017
- 2017-04-18 CN CN201720405569.5U patent/CN206648866U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374366A (en) * | 2018-11-07 | 2019-02-22 | 中国科学院东北地理与农业生态研究所 | A kind of the soil gas acquisition device and its application method of variable volume |
| CN109374366B (en) * | 2018-11-07 | 2022-02-15 | 中国科学院东北地理与农业生态研究所 | Volume-variable soil gas collection device and using method thereof |
| CN111766121A (en) * | 2020-08-03 | 2020-10-13 | 四川洁承环境科技有限公司 | Air collection equipment for air detection |
| CN114034523A (en) * | 2021-12-02 | 2022-02-11 | 中国科学院东北地理与农业生态研究所 | Constant-pressure greenhouse gas collecting device and collecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171117 Termination date: 20190418 |