CN202195972U - Soil gas collector for soil in environments with low temperature, drought, moist as well as alternate and frequent freeze-thaw - Google Patents
Soil gas collector for soil in environments with low temperature, drought, moist as well as alternate and frequent freeze-thaw Download PDFInfo
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- CN202195972U CN202195972U CN 201120255656 CN201120255656U CN202195972U CN 202195972 U CN202195972 U CN 202195972U CN 201120255656 CN201120255656 CN 201120255656 CN 201120255656 U CN201120255656 U CN 201120255656U CN 202195972 U CN202195972 U CN 202195972U
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- microclimate
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Abstract
The utility model relates to a soil gas collector for soil in environments with low temperature, drought, moist as well as alternate and frequent freeze-thaw. The soil gas collector comprises a sampler, a control cabinet and a microclimate collecting system. A micro air-in hole is arranged in the tube wall at the lower end of a sampling protection tube, wherein the external wall of the sampling protection tube is wrapped by an antifreezing heating band; the top end of the sampling protection tube is provided with a plastic upper cover; the bottom of the sampling protection tube is provided with a plastic lower plug head fixed by a screw; a silica gel tube plug is arranged inside the tube. A vacuum pump, an inverter supply and a filter are arranged in the control cabinet. The microclimate collecting system comprises a microclimate collector, an anemometer cup, a wind vane, an air temperature and humidity sensor and a ground temperature sensor. The collector can avoid the blockage interference of the micro air-in hole caused by soil particles, water and ice, collect greenhouse gas of soil in a certain depth range to simultaneously prevent external air from entering a gas collecting pipe, and utilize a movable air exhaust equipment consisting of an air pump and the like to increase volume of the collected gas so as to further eliminate experimental error and improve experimental accuracy; and the soil gas collector can be positioned in the soil at different depths according to experimental requirements for collecting the greenhouse gas of the soil at different depth ranges, so as to monitor the greenhouse gas concentration of the soil profile in each depth range. The soil gas collector is simple in structure, convenient in operation and is suitable for multi-spot observation at the same time.
Description
Technical field
The utility model relates to the test apparatus equipment technical field, is a kind of soil gas collector that low temperature arid humidity and alternate freezing and thawing take place frequently that is used for specifically.
Background technology
As everyone knows, be that the terrestrial climate system change of principal character is a undisputable fact with the climate warming.Under the background of climate warming, Qinghai-Tibet regional ever frost presents degeneration in various degree, possibly cause soil organic carbon that the ever frost district is a large amount of and nitrogen with the form of greenhouse gases (like CO
2And N
2O etc.) get into atmosphere, show positive feedback effect, therefore, the generation mechanism and the influence factor of research soil greenhouse gases have important practical significance for the ecologic environment of control greenhouse gas emission with protection arid biogeographic zone, permafrost region.Frequently take place period at frozen soil mobile layer freeze-thawing process of soil, the greenhouse gases in the position monitor arid biogeographic zone frozen soil layer different depth soil are the common hot issues paid close attention to of pedology, ecology, desert science and cryosphere scientific research person.Mo kao grotto at Dunhuang research soil greenhouse gases concentration profile distribute and with the relation of soil physico-chemical property; Help to disclose biology and the physical process that the soil percent of greenhouse gases produces, accumulates, transports and in atmosphere and grottoes, discharge, to studying the culture of protection Mo kao grotto at Dunhuang and in the research of global soil desertification, having great importance.
At present, the researcher mainly concentrates on the flux monitoring of face of land greenhouse gases, and less to the study on monitoring of soil profile greenhouse gases, this mainly receives the restriction of test apparatus.Because the alternate freezing and thawing effect often takes place frozen soil mobile layer soil, through the air admission hole of regular meeting's obstruction gas collecting, this has brought very big obstacle for other porous soil gas collecting device application in this zone during holard glaciation.At present existing researcher utilizes single pore that the different depth of soil gaseous sample is monitored; But because it only represents the soil gas of a certain degree of depth; Be difficult to combine generation mechanism and the influence factor of analyzing greenhouse gases with the soil physico-chemical property of concrete depth range, this has brought very big sum of errors uncertain to test findings.
Summary of the invention
In sum; The purpose of the utility model is to provide a kind of soil gas collector that low temperature arid humidity and alternate freezing and thawing take place frequently that is used for; This invention overcomes the defective of existing soil gas harvester; Can under the field environment that various low temperatures, arid, humidity or alternate freezing and thawing take place frequently, use, improve the accuracy of test.
The purpose of the utility model realizes through following technology:
A kind ofly be used for the soil gas collector that low temperature arid humidity and alternate freezing and thawing take place frequently, constitute by ST, switch board and microclimate acquisition system:
ST connects the rapid-acting coupling flexible pipe through the rapid-acting coupling valve; The rapid-acting coupling flexible pipe is connected with air intake valve on the switch board; The valve of giving vent to anger on the switch board connects gas-storing bag; Inverter in the switch board is connected with accumulator jar; Solar panel is connected with solar charger, and accumulator jar connects solar charger and microclimate acquisition system;
ST comprises ST I, ST II, ST III, ST IV, ST V, ST VI; ST is made up of stopple coupon, elbow connection handle, upper plastic cover, nontoxic silica gel pipe close, antifreeze heating tape, sampling protection tube, plastics lower end cap; Sampling protection tube lower end barrel has little air admission hole, and its outer wall wraps up antifreeze heating tape, and there is upper plastic cover on the top, and the bottom has the plastics lower end cap to fix through fixed screw; In the sampling protection tube nontoxic silica gel pipe close is set; Nontoxic silica gel pipe close center pit is passed in the stopple coupon lower end, and fixes through pipe collar and nut and nontoxic silica gel pipe close; Its upper end is passed upper plastic cover and is connected with the elbow connection handle;
Switch board is built-in with vacuum pump, inverter and filtrator; Its panel is provided with pilot lamp, inverter switch, air pump switch, heating tape switch, air pump flow valve and supply socket;
The microclimate acquisition system is made up of microclimate Acquisition Instrument, wind speed cup, weathervane, aerial temperature and humidity sensor and ground temperature sensor;
Supply socket connects antifreeze heating tape through the heating tape plug.
Advantage of the utility model and beneficial effect:
1, the utility model can be according to the different tests purpose; Be laid in the field soil environment that various low temperature, arid, humidity or alternate freezing and thawing take place frequently; Mainly be that sampling protection tube is embedded in the soil by different depth; Utilize nontoxic silica gel pipe close to block the little air admission hole of sampling, anti-sealing or its thing get in the sampler barrel, keep the pure inclusion-free of gas in the sampling cylinder.
2, outer wall is enclosed with the heating tape to the utility model in sampling protection tube lower end; When high height above sea level or Han Dongdiqu take a sample, if little air admission hole is freezed by moisture content, can be through the heating tape with ice-out; Entire equipment can normally be moved; Disappear and freeze or change sampler and need not take out sampler barrel, greatly improved work efficiency, alleviated labour intensity, practiced thrift sample time.
3, the utility model can be according to the requirement processing cartridge type soil profile gas collecting apparatus of gathering greenhouse gases in a certain depth of soil scope; Gather the soil greenhouse gases of different depth scope, thus the greenhouse gases concentration in the periodic monitoring soil profile different depth scope.
4, the utility model is that 220 couchers are made voltage through inverter with the 12V voltage transitions through sun power to 12 volts of accumulator jar chargings again; The utility model can normally be carried out the work in the open air; Make things convenient for the gas collecting that carries out soil in various environment and region, made things convenient for the sampling of scientific research research and archaeology geology soil.
5, the utility model is bled through miniature vacuum air pump automatically increases the gas flow of being gathered, and makes it can have enough gas flows to come to satisfy fully the testing requirement of different greenhouse gases concentration, improves the test degree of accuracy with this; Simultaneously, the minipump utilization give vent to anger valve with the band syringe needle escape pipe, can easily the gaseous sample that is extracted be collected into the gas production bag.
6, the utility model is formed the packaged type air-extractor by gas-storing bag, the valve of giving vent to anger, escape pipe, switch board, the face of land, accumulator jar, power lead, silicone tube, can after accomplishing the gaseous sample collection, dismantle and use in other collection point.
7, the utility model is simple in structure, easy to operate, be applicable to the field environment (like high and cold permafrost region) that various low temperature, arid, humidity or alternate freezing and thawing take place frequently, and suitable multiple spot is observed simultaneously.
8, the utility model is formed the microclimate acquisition system through wind speed, wind direction, aerial temperature and humidity and ground temperature sensor with Acquisition Instrument, the microclimate of while during collecting and sampling.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Numerals 1: - sampler I 2 - Sampler II 3 - Sampler III? 4 - Sampler IV 5 - V6-sampler sampler VI 7 - Sampling tube 8 - Elbow Handles 9 - plastic upper cover 10 - non-toxic silicone tube plugs 11 - nut 12 - antifreeze heater band 13 - Sampling protection tube 14 - under plastic plug 15 - Sampling micro air intake 16 - pipe clamps 17 - Screw 18 - Quick Coupling Valves 19 - plus tropical plug 20 - Quick Connector Hose 21 - inlet valve 22 - Vacuum 23 - Inverter power supply 24 - LEDs 25 - inverter power switch 26 - pump switch 27 - plus tropical switch 28 - storage battery 29 - Charging 30 - Solar panel 31 -? filter 32 - Flow Valve 33 - Control Cabinet 34 - outlet valve 35 - gas bag 36 - connection hose 37 - Wind Cup 38 - vane 39 - air temperature and humidity sensor 40 - Ground Temperature Sensor 41 - outlet 42 - microclimate logger
Embodiment
1 couple of the present invention further specifies below in conjunction with accompanying drawing:
As shown in Figure 1, a kind ofly be used for the soil gas collector that low temperature arid humidity and alternate freezing and thawing take place frequently, constitute by ST, switch board 33 and microclimate acquisition system:
ST connects rapid-acting coupling flexible pipe 20 through rapid-acting coupling valve 18; Rapid-acting coupling flexible pipe 20 is connected with air intake valve 21 on the switch board 33; The valve 34 of giving vent to anger on the switch board 33 connects gas-storing bag 35; Inverter 23 in the switch board 33 is connected with accumulator jar 28; Solar panel 30 is connected with solar charger 29, and accumulator jar 28 connects solar charger 29 and microclimate acquisition system;
ST comprises ST I1, ST II2, ST III3, ST IV4, ST V5, ST VI6; ST is made up of stopple coupon 7, elbow connection handle 8, upper plastic cover 9, nontoxic silica gel pipe close 10, antifreeze heating tape 12, sampling protection tube 13, plastics lower end cap 14; Sampling protection tube 13 lower end barrels have little air admission hole 15; Its outer wall wraps up antifreeze heating tape 12; There is upper plastic cover 9 on the top, and the bottom has plastics lower end cap 19 fixing through fixed screw 17, in the sampling protection tube 13 nontoxic silica gel pipe close 10 is set; Nontoxic silica gel pipe close 10 center pits are passed in stopple coupon 7 lower ends, and fix through pipe collar 16 and nut 11 and nontoxic silica gel pipe close 10; Its upper end is passed upper plastic cover 9 and is connected with elbow connection handle 8;
Switch board 33 is built-in with vacuum pump 22, inverter 23 and filtrator 31; Its panel is provided with pilot lamp 24, inverter switch 25, air pump switch 26, heating tape switch 27, air pump flow valve 32 and supply socket 41;
The microclimate acquisition system is made up of microclimate Acquisition Instrument 42, wind speed cup 37, weathervane 38, aerial temperature and humidity sensor 39 and ground temperature sensor 40;
Supply socket 41 connects antifreeze heating tape 12 through heating tape plug 19.
Embodiment:
At first; In the field test appearance ground of choosing, bury diameter underground and be the antifreeze ST of different depth waterproof that 38 millimeters, length are respectively 300,400,500,600,700 millimeters, be depressed into nontoxic silica gel pipe close 10 minimum, block little air admission hole 15 fully; Avoid the infiltration of other gas and moisture; Stopple coupon 7 upper ends connect elbow connection handle 8 and rapid-acting coupling valve 18 1 ends, and rapid-acting coupling valve 18 is in closed condition, have buried one period of back balance;
When observation the switch board 33 of moveable part, accumulator jar 28 and gas-storing bag 35; Forming the packaged type air-extractor through silicone tube is connected with sampling rapid-acting coupling valve 18 other ends; Gas-storing bag 35 is connected the valve 34 of giving vent to anger, and gas sampled flow size is by flow valve 32 controls; When carrying out the soil gas sampling; Open rapid-acting coupling valve 18; Carry elbow connection handle 8 firmly stopple coupon 7 is mentioned 120 millimeters together with nontoxic silica gel pipe close 10, make sampling protection tube 13 lower ends be full of required soil gas, be connected through rapid-acting coupling already installed packaged type air-extractor with valve 18 other ends simultaneously through the little air admission hole 15 on the sampling protection tube 13; If little air admission hole 15 freezes when gathering gas; Utilize antifreeze heating tape 12 to melt ice sheet, the heating soil moisture melts the ice in little air admission hole 15, makes little air admission hole 15 gas circuits on the sampling protection tube 13 unimpeded; The vacuum pump of opening at last in the switch board 33 22 reaches extraction gas appearance, collects required soil gas through gas-storing bag 35; After this point has been surveyed, rapid-acting coupling valve 18 is unloaded, turn off power supply, pull out rapid-acting coupling flexible pipe 20 and transfer to next observation station and carry out above operation.
3 samplings are set respectively in 5 kinds of ground to be repeated a little; The antifreeze ST of waterproof is imbedded the degree of depth of underground 300mm, 400mm, 500mm, 600mm, 700mm respectively; Make sampling protection tube 13 appearance soil conservation original states as far as possible; Little air admission hole 15 is accomplished sampling process with soil through stopple coupon 7, begins to mid-October from late May, carries out the collection of gaseous sample with average every 5-10 days SF; Each 200 milliliters of gases of gathering inject in the sampling airbag, and number record is transported back in the laboratory and in time analyzed.The sampling time basic fixed is distinguished the stingy marquis's data of synchronous acquisition simultaneously at every morning 8:30 to 10:00.
The utility model is in test or field work; Can be according to demand; Utilize daytime solar panel 30 to give accumulator jar 28 chargings through charger 29; Give the microclimate acquisition system of forming by microclimate Acquisition Instrument 42, wind speed cup 37, weathervane 38, aerial temperature and humidity sensor 39 and ground temperature sensor 40 power supply simultaneously, the microclimate value during collecting and sampling.
Claims (3)
1. one kind is used for the soil gas collector that low temperature arid humidity and alternate freezing and thawing take place frequently, and by ST, switch board (33) and microclimate acquisition system formation, it is characterized in that:
A. ST connects rapid-acting coupling flexible pipe (20) through rapid-acting coupling valve (18); Rapid-acting coupling flexible pipe (20) is connected with air intake valve (21) on the switch board (33); The valve of giving vent to anger (34) on the switch board (33) connects gas-storing bag (35); Inverter (23) in the switch board (33) is connected with accumulator jar (28); Solar panel (30) is connected with solar charger (29), and accumulator jar (28) connects solar charger (29) and microclimate acquisition system;
B. ST comprises ST I (1), ST II (2), ST III (3), ST IV (4), ST V (5), ST VI (6); ST is made up of stopple coupon (7), elbow connection handle (8), upper plastic cover (9), nontoxic silica gel pipe close (10), antifreeze heating tape (12), sampling protection tube (13), plastics lower end cap (14); Sampling protection tube (13) lower end barrel has little air admission hole (15), and its outer wall wraps up antifreeze heating tape (12), and there is upper plastic cover (9) on the top, and the bottom has plastics lower end cap (19) fixing through fixed screw (17); In the sampling protection tube (13) nontoxic silica gel pipe close (10) is set; Nontoxic silica gel pipe close (10) center pit is passed in stopple coupon (7) lower end, and fixing with nontoxic silica gel pipe close (10) through pipe collar (16) and nut (11), and its upper end is passed upper plastic cover (9) and is connected with elbow connection handle (8);
C. switch board (33) is built-in with vacuum pump (22), inverter (23) and filtrator (31); Its panel is provided with pilot lamp (24), inverter switch (25), air pump switch (26), heating tape switch (27), air pump flow valve (32) and supply socket (41).
2. a kind of soil gas collector that low temperature arid humidity and alternate freezing and thawing take place frequently that is used for as claimed in claim 1, it is characterized in that: said microclimate acquisition system is by microclimate Acquisition Instrument (42), wind speed cup (37), weathervane (38), aerial temperature and humidity sensor (39) and ground temperature sensor (40) formation.
3. a kind of soil gas collector that low temperature arid humidity and alternate freezing and thawing take place frequently that is used for as claimed in claim 1, it is characterized in that: said supply socket (41) connects antifreeze heating tape (12) through heating tape plug (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120255656 CN202195972U (en) | 2011-07-15 | 2011-07-15 | Soil gas collector for soil in environments with low temperature, drought, moist as well as alternate and frequent freeze-thaw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120255656 CN202195972U (en) | 2011-07-15 | 2011-07-15 | Soil gas collector for soil in environments with low temperature, drought, moist as well as alternate and frequent freeze-thaw |
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| Publication Number | Publication Date |
|---|---|
| CN202195972U true CN202195972U (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120255656 Expired - Fee Related CN202195972U (en) | 2011-07-15 | 2011-07-15 | Soil gas collector for soil in environments with low temperature, drought, moist as well as alternate and frequent freeze-thaw |
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| Country | Link |
|---|---|
| CN (1) | CN202195972U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879235A (en) * | 2011-07-15 | 2013-01-16 | 敦煌研究院 | Soil gas collector for alternately frequent low temperature, drought, wet, freezing and thawing soil |
| CN106226115A (en) * | 2016-10-09 | 2016-12-14 | 中国农业大学 | A kind of collecting soil sample method and device |
| CN107356726A (en) * | 2017-08-22 | 2017-11-17 | 中国科学院寒区旱区环境与工程研究所 | Permafrost Degeneration process chamber simulation system |
| CN115901841A (en) * | 2023-03-13 | 2023-04-04 | 中国电建集团昆明勘测设计研究院有限公司 | Method for simulating formation of arch bridge-shaped ice cover of reservoir and measuring overall form evolution |
-
2011
- 2011-07-15 CN CN 201120255656 patent/CN202195972U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102879235A (en) * | 2011-07-15 | 2013-01-16 | 敦煌研究院 | Soil gas collector for alternately frequent low temperature, drought, wet, freezing and thawing soil |
| CN106226115A (en) * | 2016-10-09 | 2016-12-14 | 中国农业大学 | A kind of collecting soil sample method and device |
| CN107356726A (en) * | 2017-08-22 | 2017-11-17 | 中国科学院寒区旱区环境与工程研究所 | Permafrost Degeneration process chamber simulation system |
| CN107356726B (en) * | 2017-08-22 | 2023-05-12 | 中国科学院西北生态环境资源研究院 | Indoor simulation system for permafrost degradation process |
| CN115901841A (en) * | 2023-03-13 | 2023-04-04 | 中国电建集团昆明勘测设计研究院有限公司 | Method for simulating formation of arch bridge-shaped ice cover of reservoir and measuring overall form evolution |
| CN115901841B (en) * | 2023-03-13 | 2023-05-30 | 中国电建集团昆明勘测设计研究院有限公司 | Reservoir arch bridge-shaped ice cover formation simulation and integral form evolution measurement method |
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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: 20120418 Termination date: 20200715 |