CN206321533U - A kind of portable soil air penetrability determines device - Google Patents
A kind of portable soil air penetrability determines device Download PDFInfo
- Publication number
- CN206321533U CN206321533U CN201621156029.XU CN201621156029U CN206321533U CN 206321533 U CN206321533 U CN 206321533U CN 201621156029 U CN201621156029 U CN 201621156029U CN 206321533 U CN206321533 U CN 206321533U
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- China
- Prior art keywords
- soil
- portable
- sample
- rubber piston
- holding device
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Abstract
Device is determined the utility model discloses a kind of portable soil air penetrability, including portable tire pump, single direction inflating valve, connect flexible pipe, sample holding device, straight glass tube, rubber piston and portable soil permeability apparatus, it is characterized in that, described portable tire pump can provide instantaneous air pressure, described sample holding device bottom is used to place soil sample, described rubber piston is inserted with two straight glass tubes, one is air inlet, one is gas outlet, rubber piston is used for sealed sample apparatus for placing, pass through single direction inflating valve between described portable tire pump and sample holding device, connecting conduit, straight glass tube and rubber piston connection, described portable soil permeability apparatus is used for the gas conductivity for determining soil, described sample holding device is cutting ring or lucite tube, described Soil ventilation rate analyzer is by pressure sensor, core processor, display is constituted.Usefulness of the present utility model, which is that the apparatus structure is simple, easy to assembly, be easy to carry, be applicable not only to laboratory experiment can be used for field trial and easy to operate.
Description
Technical field：
The utility model is a kind of porous media permeability apparatus device, more particularly to a kind of portable soil air penetrability is surveyed
Determine device.
Background technology：
Soil ventilation rate refers to speed of the gas by the soil body, reflects soil gas and air is exchanged and inside soil body
The ability of gas exchanges.The gas permeability of soil is one of key property of soil, is to ensure soil air quality, plant is normally given birth to
Long, microorganism carries out the conditio sune qua nons such as normal activities.Soil aeration is poor, can influence CO in soil2With air
Middle O2Exchange.Oxygen is few in soil, when carbon dioxide is more, and soil aciditiy can not only improved, is suitable for the development of pathogenic moulds,
Crop is infected pest and disease damage, can also suppress the respiration of crop root, be unfavorable for the growth of crops.Earth poor aeration,
Microbial activities can be influenceed, the decomposition rate and nutrient availability of organic matter is reduced, influences the development of soil fertility, Jin Erying
Ring plant growth.
The gas permeability of soil synthetically reflects the basic physics shape such as quality, soil aperture and Soil exchangeable base of soil
Condition, while also influence soil moisture and nutrient availability, so the research of the gas permeability of soil has great meaning in agriculture field
Justice.But, there are many defects in traditional gas permeability of soil assay method, although such as traditional voltage stabilizing determination method technology into
It is ripe, but testing equipment is complicated and expensive, resultant error is larger；Manometer method relies on precision instrument equipment, and it is more difficult to determine；And
Existing Soil ventilation rate determines device and is not easy to carry and is not suitable for the severe condition in field.In view of the foregoing, at present
Also without a kind of easy to operate, efficiently feasible and portable Soil ventilation rate determination device.
Utility model content：
Though the utility model, which needs the above mentioned problem solved, to be set for voltage stabilizing determination method experiment traditional in the prior art
Standby complicated and expensive, resultant error is larger；Manometer method relies on precision instrument equipment, and it is more difficult to determine, and provides a kind of operation side
Just, efficiently feasible portable soil ventilative speed determines device, and not only going for laboratory experiment can be used for field
Experiment.
In order to solve the above technical problems, the utility model, which provides a kind of portable soil ventilative speed, determines device, bag
Include portable tire pump, single direction inflating valve, connection flexible pipe, sample holding device, straight glass tube, rubber piston and portable soil
Permeability apparatus, it is characterised in that described portable tire pump can provide instantaneous air pressure, described sample holding device
Bottom is used to place soil sample, and described rubber piston is inserted with two straight glass tubes, and one is air inlet, and one is gas outlet,
Rubber piston is used for sealed sample apparatus for placing, passes through unidirectional gas between described portable tire pump and sample holding device
Mouth, connecting conduit, straight glass tube and rubber piston connection, described portable soil permeability apparatus are used to determine soil
Gas conductivity, described sample holding device is cutting ring or lucite tube, and described Soil ventilation rate analyzer is passed by pressure
Sensor, core processor, display composition.
It is of the present utility model to be beneficial in that：The apparatus structure is simple, easy to assembly, is easy to carry about with one, is applicable not only to
Laboratory experiment can be used for field trial and easy to operate.Atmospheric pressure can accurately be recorded at any time by pressure sensor
Between change, so as to improve the precision of Soil ventilation speed measurement；, can be with by editor of the core processor to computing formula
The speed of result of calculation is provided.
Brief description of the drawings：
The technical solution of the utility model is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the utility model schematic device.
Fig. 2 is portable soil permeability apparatus schematic diagram.
Fig. 3 is that portable soil permeability apparatus internal structure constitutes figure.
The implication of reference in figure：1st, portable tire pump, 2, single direction inflating valve, 3, soft air-guide pipe, 4, straight glass tube,
5th, rubber piston, 6, sample holding device, 7 portable soil ventilative speed analyzers
Embodiment
Referring to Fig. 1, a kind of ventilative speed of portable soil of the utility model determines device, including portable tire pump 1, unidirectional
Valve 2, soft air-guide pipe 3, straight glass tube 4, rubber piston 5, sample holding device 6, portable soil ventilative speed analyzer
7.Single direction inflating valve is arranged on portable tire pump, then straight glass tube is arranged on rubber piston, rubber piston is used
Sample holding device is sealed, connected by soft air-guide pipe between portable tire pump and straight glass tube air inlet and straight glass
Between glass pipe gas outlet and portable soil ventilative speed analyzer.
Referring to Fig. 2 and 3, to illustrate the operation principle of portable soil ventilative speed analyzer.Surveyed in Soil ventilation speed
Determine at instrument air inlet, there is a pressure sensor, and whole device air-tightness is good, is held by determination of pressure sensor sample
Air pressure in device changes with time, by electric signal transmission to core processor, by carrying out formula to core processor
Editor, carries out computing, the real result in display screen.Its equation is as follows：
Wherein：kaIt is Soil ventilation rate；PatmIt is atmospheric value；A is sample holding device cross-sectional area；Z is that sample is held
Pedotheque is highly in device；μ is the dry air coefficient of viscosity；V is that sample volume is removed in sample holding device；P (0) is just gas testing
Pressure difference.
A, Z and V value can be set by Soil ventilation rate analyzer.
In order to more fully understand the utility model, device is determined to a kind of ventilative speed of portable soil of the utility model below
The course of work be illustrated：
(1) when testing indoors, vaseline is applied to inside lucite tube, to prevent between soil sample and lucite tube
Produce gap and produce gas leakage, then in the sample placement by required measure and lucite tube；, will be organic in the wild during laboratory
Glass tube changes elongated cutting ring into and then squeezed into soil.
(2) by Soil ventilation rate analyzer set pedotheque height in A earth pillar pipe mouths of pipe cross-sectional areas, Z earth pillar pipes,
The value of sample volume is removed in V earth pillar pipes.
(3) inflated by portable tire pump, what is made produces instantaneous air pressure on soil sample surface.
(4) value of sample air penetrability is read by Soil ventilation rate determination instrument.
It should be noted last that, above embodiment is only to illustrate the technical solution of the utility model rather than limit
System, although the utility model is described in detail with reference to preferred embodiment, it will be understood by those within the art that,
The technical solution of the utility model can be modified or equivalent, without departing from the essence of technical solutions of the utility model
God and scope, it all should cover among right of the present utility model.
Claims (3)
1. a kind of portable soil air penetrability determines device, including portable tire pump, single direction inflating valve, connection flexible pipe, sample are contained
Put device, straight glass tube, rubber piston and portable soil permeability apparatus, it is characterised in that described Portable hitting
Inflator can provide instantaneous air pressure, and described sample holding device bottom is used to place soil sample, and described rubber piston is inserted with two
Root straight glass tube, one be air inlet, one be gas outlet, rubber piston be used for sealed sample apparatus for placing, it is described just
Take and connected between formula inflator and sample holding device by single direction inflating valve, connecting conduit, straight glass tube and rubber piston, institute
The portable soil permeability apparatus stated is used for the gas conductivity for determining soil.
2. a kind of portable soil air penetrability according to claim 1 determines device, it is characterised in that：Sample holding device
For cutting ring or lucite tube.
3. a kind of portable soil air penetrability according to claim 1 determines device, it is characterised in that：Soil ventilation rate is surveyed
Determine instrument to be made up of pressure sensor, core processor, display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621156029.XU CN206321533U (en) | 2016-10-31 | 2016-10-31 | A kind of portable soil air penetrability determines device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621156029.XU CN206321533U (en) | 2016-10-31 | 2016-10-31 | A kind of portable soil air penetrability determines device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206321533U true CN206321533U (en) | 2017-07-11 |
Family
ID=59263786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621156029.XU Expired - Fee Related CN206321533U (en) | 2016-10-31 | 2016-10-31 | A kind of portable soil air penetrability determines device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206321533U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655806A (en) * | 2017-09-11 | 2018-02-02 | 杨凌职业技术学院 | Soil gas conductivity assay method after a kind of underground drip irrigation is poured water |
| CN109444021A (en) * | 2018-12-18 | 2019-03-08 | 敦煌研究院 | A kind of device for monitoring, measuring the gas permeability of soil |
| CN112083029A (en) * | 2020-08-13 | 2020-12-15 | 四川士达特种炭材有限公司 | Device and method for evaluating comprehensive performance of filler |
-
2016
- 2016-10-31 CN CN201621156029.XU patent/CN206321533U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655806A (en) * | 2017-09-11 | 2018-02-02 | 杨凌职业技术学院 | Soil gas conductivity assay method after a kind of underground drip irrigation is poured water |
| CN109444021A (en) * | 2018-12-18 | 2019-03-08 | 敦煌研究院 | A kind of device for monitoring, measuring the gas permeability of soil |
| CN112083029A (en) * | 2020-08-13 | 2020-12-15 | 四川士达特种炭材有限公司 | Device and method for evaluating comprehensive performance of filler |
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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 |
Granted publication date: 20170711 Termination date: 20181031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |