CN203148931U - Base of soil gas flux tester - Google Patents
Base of soil gas flux tester Download PDFInfo
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- CN203148931U CN203148931U CN 201320193042 CN201320193042U CN203148931U CN 203148931 U CN203148931 U CN 203148931U CN 201320193042 CN201320193042 CN 201320193042 CN 201320193042 U CN201320193042 U CN 201320193042U CN 203148931 U CN203148931 U CN 203148931U
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- base
- ring
- gas flux
- soil
- soil gas
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Abstract
The utility model provides a base of a soil gas flux tester. The base comprises a base body (20), a sealing ring (5) and a pressing ring (3), and is characterized in that the base body (20) is divided into a base ring surface (20-5) and a base mounting region (20-6); the base ring surface (20-5) is provided with a base inner ring (20-3) for inserting a soil supplying ring (1); the periphery of the base ring surface (20-5) is further provided with base air holes (20-4); the sealing ring (5) is arranged on the base body (20); and the pressing ring (3) is tightly pressed on the sealing ring (5). According to the base of the soil gas flux tester disclosed by the utility model, a soil gas flux testing device is located on the horizontal position when being used for measuring and the position offset of the air chamber can be automatically corrected and returned.
Description
Technical field
The present invention relates to a kind of ecological self-operated measuring unit field, be specially a kind of base of soil gas flux analyzer.
Background technology
Terrestrial soil is breathed, and to be gas enter the main path of atmosphere from soil, closely related with Global climate change.Soil respiration have tangible season and diurnal variation dynamic, its season is dynamic and the temperature variation feature is closely related, in addition, the factor that influences soil respiration is a lot, except physical characteristics such as the permeability of soil and soil microorganism feature, temperature, soil temperature, humidity, atmosphere CO 2 concentration, soil inorganic nutrients and organic content and composition etc. all can influence soil respiration.
The increase day by day of greenhouse gases content is the one of the main reasons that causes global greenhouse effect.A large amount of carbon that utilization part in soil is fixed are retained in the soil organism and the vegetation, and global soil carbon reserves are about 1.5 times of carbon reserves in the vegetation, storage capacity and the dynamic change thereof of carbon base in soil are studied, and be the focus direction of current ecological study.It is to utilize that the CO2 concentration change accurately reflects in the CO2 analysis-e/or determining gas switch room that present soil carbon is breathed, need use measuring chamber when using this method, developed at present and used automatic flux case to measure, existing correlative study personnel carry out the research of this aspect at home, as publication number be: CN102288545A, CN101949919A, CN101162225, CN1987421, CN202008480U, CN2605571, but the bigger situation of measuring result error appears when using these devices easily, equipment integrated poor, encapsulation property is poor, can not be in time from normal moveout correction during the skew of air chamber occurrence positions, have a strong impact on stability and the serviceable life of measurement mechanism, cause the systematic error of experimental result and accidental error bigger.
On the other hand, need reduce soil gas flux determinator projected area on the ground during owing to measurement soil respiration, to reduce the soil respiration chamber to the disturbance of soil surface as far as possible.Existing soil gas flux determinator all is to adopt the base at a far super air chamber of area to punch, and reduces the projected area of soil gas flux determinator, but still can not well reduce the projected area of soil gas flux determinator like this.
Summary of the invention
The application's purpose is to provide a kind of base of soil gas flux analyzer, is on the level position when soil gas flux determinator is measured to solve, and the skew of air chamber position can be proofreaied and correct return, the problem bigger to the disturbance of soil automatically.
In order to achieve the above object, the present invention is by the following technical solutions:
A kind of base of soil gas flux analyzer, comprise base (20), O-ring seal (5) and compacting ring (3), it is characterized in that: described base (20) is divided into base anchor ring (20-5) and base installing zone (20-6), ring (20-3) in base anchor ring (20-5) is provided with the base that inserts for soil ring (1), periphery at base anchor ring (20-5) also is provided with base ventilation holes (20-4), described base (20) is provided with O-ring seal (5), is pressing compacting ring (3) at O-ring seal (5).
Further, described air chamber (7) is provided with resupinate air chamber outer (7-1).
Further, described base anchor ring (20-5) is annular, and its overall diameter is than the big 2cm-20cm of diameter of air chamber (7), and its interior diameter is than the little 1cm-5cm of diameter of air chamber (7).
Further, the overall diameter of described base anchor ring (20-5) is than the big 7cm of air chamber (7) diameter.
Further, described base installing zone (20-6) is provided with mounting hole (20-1) and cylinder pilot hole (20-2).
Further, described O-ring seal (5) comprises (5-3) at the bottom of the cyclic group, (5-3) is provided with O-ring seal pore (5-2) at the bottom of the cyclic group, and the part that (5-3) protrudes upward at the bottom of the cyclic group is upper convex portion (5-1), and the interior ring diameter of upper convex portion (5-1) is less than or equal to the overall diameter of soil ring (1).
Further, described compacting ring (3) comprises pore (3-2) and ring inner face (3-3), and the area of ring inner face (3-3) is long-pending greater than the inner ring surface of O-ring seal (5).
Further, also be provided with locating device (3-1) on the described compacting ring (3).
Further, described locating device (3-1) is evenly distributed on the compacting ring (3), and the quantitative range of locating device (3-1) is 3 to 6.
Further, quantity, the area equal and opposite in direction of described pore (3-2), O-ring seal pore (5-2) and base ventilation holes (20-4), the position is corresponding.
Further, described pore (3-2) and base ventilation holes (20-4) are provided with internal thread.
Further, described O-ring seal (5) is made by Teflon silica gel is one-body molded.
The present invention has the following advantages:
1) measurement zone of the base of soil gas flux analyzer is slightly larger than the area of air chamber, shape and air chamber are complementary, thereby minimize the projected area of the base of soil gas flux analyzer, can effectively reduce the influence of base to measuring of soil gas flux analyzer;
2) base at soil gas flux analyzer is provided with the air chamber stop means, when the air chamber occurrence positions departs from, can effectively correct the position of air chamber;
3) adopt Teflon silica gel to make O-ring seal, because common rubber is to CO
2Absorption is arranged, measurement result is exerted an influence.
Description of drawings
Fig. 1 is soil gas flux assay device structures synoptic diagram
Fig. 2 is the structural drawing of the base of soil gas flux analyzer
Fig. 3 is base (20) and associated components explosive view
Fig. 4 is the structural representation of base (20)
Soil ring 1; Supporting leg 2; Compacting ring 3; Screw hole 4; O-ring seal 5; Holding screw 6; Air chamber 7; Protective cover 8; Passing spool 9; Crossbeam 10; Horizontal ball 11; Sleeve pipe 12; Handle 13; Leg rotating shaft 14; Leg lower edge 15; Leg chute 16; The long lower edge 17 of bearing; Lower edge, chassis 18; Control box 19; Base 20; Locating device 3-1; Pore 3-2; Ring inner face 3-3; Upper convex portion 5-1; O-ring seal pore 5-2; 5-3 at the bottom of the cyclic group; Air chamber outer 7-1; Mounting hole 20-1; Cylinder pilot hole 20-2; Ring 20-3 in the base; Base ventilation holes 20-4; Base anchor ring 20-5; Base installing zone 20-6.
Embodiment
As shown in Figure 1, soil gas flux determinator mainly comprises soil ring (1), supporting leg (2), base (20), air chamber (7) and control box (19).Below base (20), be provided with soil ring (1), respectively be provided with the long lower edge (17) of two bearings and lower edge, chassis (18) on its both sides, in the long lower edge (17) of bearing and lower edge, chassis (18) supporting leg (2) that links together by leg rotating shaft (14) is housed, supporting leg (2) is provided with leg chute (16), the rotation of supporting leg (2) is that the center of circle, leg chute (16) are that track carries out the height adjusting with leg rotating shaft (14), thereby soil gas flux determinator is difficult for being subjected to displacement, and is more firm.
When soil gas flux determinator is off working state, when needing packing and transporting, supporting leg (2) can be folded into the state that parallels with base (20) along the track of leg chute (16), and can pass through the leg lower edge (15) on the supporting leg (2), the supporting leg of homonymy (2) can tightly hang together mutually.
As shown in Figure 2, the base of soil gas flux analyzer mainly comprises base (20), O-ring seal (5) and compacting ring (3), afterbody at base (20) is provided with handle (13), be provided with O-ring seal (5) above the base (20), pressing compacting ring (3) on O-ring seal (5), concrete layer structure as shown in Figure 3.
As can be seen from Figure 3, O-ring seal (5) is provided with O-ring seal pore (5-2) at the bottom of its cyclic group, its part that protrudes upward is upper convex portion (5-1), the interior ring size of upper convex portion (5-1) is complementary with soil ring (1), to keep base (20) and soil to encircle the tight seal of (1), simultaneously its ring is outside is complementary with air chamber (7), thereby when guaranteeing the work of soil gas flux determinator, air chamber (7), base (20) and O-ring seal (5) can form an airtight space.
For O-ring seal (5) is fixed on the base (20), be provided with compacting ring (3) in the top of O-ring seal (5), be provided with the pore (3-2) corresponding with O-ring seal pore (5-2), base ventilation holes (20-4) at compacting ring (3), the area of the ring inner face (3-3) on the compacting ring (3) is long-pending greater than the inner ring surface of O-ring seal (5).For the air chamber (7) that guarantees compacting ring (3) top can accurately drop in the ring inner face (3-3), on compacting ring (3), also be provided with locating device (3-1), on the other hand, in order to increase air chamber (7) and the surface of contact that encircles inner face (3-3), resupinate shape is made in the air chamber outer (7-1) of air chamber (7).Like this, owing to increase the contact area of air chamber (7) and O-ring seal (5), tightness is better, can contact with locating device (3-1) on the other hand on the one hand, can form certain slope, because the guiding of locating device (3-1) is very easy to slide in the ring inner face (3-3).
O-ring seal (5) is made by Teflon silica gel is one-body molded, and Teflon silica gel claims Teflon silica gel again, and is nontoxic, can be to CO
2With water generates absorption, compare other encapsulants at soil carbon flux determinator, have an unexpected effect, to the minimum interference of experimental result, can not produce any influence, sealing effectiveness is more excellent.
As shown in Figure 4, base (20) is divided into base anchor ring (20-5) and base installing zone (20-6), and base anchor ring (20-5) is the ring-type circle, and its diameter is than the big 2cm-20cm of diameter of air chamber (7), being the best greater than 2-5cm.Annular that also can be base anchor ring (20-5) be, its overall diameter be than the big 2cm-20cm of diameter of air chamber (7), and its interior diameter is than the little 1cm-5cm of diameter of air chamber (7), and optimum value is that the overall diameter of base anchor ring (20-5) is than the big 5cm of air chamber (7) or 7cm.
Ring (20-3) in base anchor ring (20-5) is provided with the base that inserts for soil ring (1), simultaneously, also be provided with base ventilation holes (20-4), in its base ventilation holes (20-4) screw thread is arranged, can be used for breathing freely on the one hand, reduce base (20) to the projected area of soil to be measured, reduction is to the influence of measurement result, on the other hand, can tighten together by screw is gone up with base ventilation holes (20-4) corresponding pore (3-2), O-ring seal pore (5-2) with compacting ring (3), O-ring seal (5), finish the assembling to base anchor ring (20-5) district accessory.
Be provided with mounting hole (20-1) at base installing zone (20-6), the control box (19) on the mounting seat (20) also is provided with cylinder pilot hole (20-2) simultaneously, for the inner cylinder of control box (19) is installed.
Though top some specific embodiments of having given an example illustrate and describe the present invention, and do not mean that the present invention only is confined to wherein each kind of details.On the contrary, in the category that is equivalent to claims and scope, can not depart from spirit of the present invention and make various modifications in various details.The tracheae installation of not writing exactly in the instructions, gas conveying, gas analysis, cylinder control and measurement host machine part are this area usual means and common practise, existing relevant auxiliary products on the market, for example reason adds the SF-3000 measurement main frame of associating, the part of Xiang Ximiaoshuing not is the common practise of this area, at this, no longer state.Simultaneously, the apparatus for automatically measuring of saying among the present invention is not limited to the measurement of soil carbon dioxide flux, those skilled in the art can associate the gas analyzer that connects other types thus, measures other gas flux and stable isotope.
Claims (10)
1. the base of a soil gas flux analyzer, comprise base (20), O-ring seal (5) and compacting ring (3), it is characterized in that: described base (20) is divided into base anchor ring (20-5) and base installing zone (20-6), ring (20-3) in base anchor ring (20-5) is provided with the base that inserts for soil ring (1), periphery at base anchor ring (20-5) also is provided with base ventilation holes (20-4), described base (20) is provided with O-ring seal (5), is pressing compacting ring (3) at O-ring seal (5).
?
2. the base of a kind of soil gas flux analyzer according to claim 1, it is characterized in that: described air chamber (7) is provided with resupinate air chamber outer (7-1).
3. the base of a kind of soil gas flux analyzer according to claim 1 and 2, it is characterized in that: described base anchor ring (20-5) is annular, its overall diameter is than the big 2cm-20cm of diameter of air chamber (7), and its interior diameter is than the little 1cm-5cm of diameter of air chamber (7).
?
4. the base of a kind of soil gas flux analyzer according to claim 3, it is characterized in that: the overall diameter of described base anchor ring (20-5) is than the big 7cm of air chamber (7) diameter.
?
5. the base of a kind of soil gas flux analyzer according to claim 4, it is characterized in that: described base installing zone (20-6) is provided with mounting hole (20-1) and cylinder pilot hole (20-2).
?
6. the base of a kind of soil gas flux analyzer according to claim 5, it is characterized in that: described O-ring seal (5) comprises (5-3) at the bottom of the cyclic group, (5-3) is provided with O-ring seal pore (5-2) at the bottom of the cyclic group, the part that (5-3) protrudes upward at the bottom of the cyclic group is upper convex portion (5-1), and the interior ring diameter of upper convex portion (5-1) is less than or equal to the overall diameter of soil ring (1).
?
7. the base of a kind of soil gas flux analyzer according to claim 6 is characterized in that: described compacting ring (3) comprises pore (3-2) and ring inner face (3-3), and the area of ring inner face (3-3) is long-pending greater than the inner ring surface of O-ring seal (5).
?
8. according to the base of claim 1,2,4,5,6 or 7 described a kind of soil gas flux analyzers, it is characterized in that: also be provided with locating device (3-1) on the described compacting ring (3).
?
9. the base of a kind of soil gas flux analyzer according to claim 8 is characterized in that: described locating device (3-1) is evenly distributed on the compacting ring (3), and the quantitative range of locating device (3-1) is 3 to 6.
?
10. according to the base of claim 1,2,4,5,6,7 or 9 described a kind of soil gas flux analyzers, it is characterized in that: described O-ring seal (5) is made by Teflon silica gel is one-body molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193042 CN203148931U (en) | 2013-04-17 | 2013-04-17 | Base of soil gas flux tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320193042 CN203148931U (en) | 2013-04-17 | 2013-04-17 | Base of soil gas flux tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148931U true CN203148931U (en) | 2013-08-21 |
Family
ID=48976447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320193042 Expired - Fee Related CN203148931U (en) | 2013-04-17 | 2013-04-17 | Base of soil gas flux tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148931U (en) |
-
2013
- 2013-04-17 CN CN 201320193042 patent/CN203148931U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING SAWEI FUTE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING SAWEI FUTE TRADE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100096 Beijing City, Changping District small town Changping Road No. 380 Building No. 40 hospital 1 to 2 1 unit 102 Patentee after: BEIJING SAWEI FUTE TECHNOLOGY CO., LTD. Address before: 100096 Beijing City, Changping District small town Changping Road No. 380 Building No. 40 hospital 1 to 2 1 unit 102 Patentee before: Beijing Saweifute Trade Co., Ltd. |
|
| 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: 20130821 Termination date: 20170417 |