CN105974086B - Regulation of carbon dioxide flux and leakage and the standard set-up and method of back-diffusion coefficient - Google Patents
Regulation of carbon dioxide flux and leakage and the standard set-up and method of back-diffusion coefficient Download PDFInfo
- Publication number
- CN105974086B CN105974086B CN201610275520.2A CN201610275520A CN105974086B CN 105974086 B CN105974086 B CN 105974086B CN 201610275520 A CN201610275520 A CN 201610275520A CN 105974086 B CN105974086 B CN 105974086B
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- leakage
- air
- panel
- diffusion coefficient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
Regulation of carbon dioxide flux and leakage and the standard set-up and method of back-diffusion coefficient, air outlet adapter on standard set-up panel is connected with the air inlet of adjustable micro pump, the gas outlet of adjustable micro pump and the air inlet of first flowmeter connect, the gas outlet of first flowmeter and the air inlet of adsorption tube connect, inlet suction port connection on the gas outlet and panel of adsorption tube, opening sample case is covered on panel, the gas outlet connection of carbon dioxide air source joint and second flowmeter on panel, the air inlet of second flowmeter and the gas outlet of regulating valve connect, the air inlet of regulating valve and the gas outlet of buffer container connect, the air inlet of buffer container and the gas outlet of heat exchanger connect, the air inlet of heat exchanger and the gas outlet of pressure-reducing valve connect, the air inlet of pressure-reducing valve is connected with carbon dioxide air source.Being capable of any regulation of carbon dioxide flux of active, the leakage of standard set-up and back-diffusion coefficient using the standard set-up of regulation of carbon dioxide flux and leakage and back-diffusion coefficient.
Description
Technical field
The present invention relates to a kind of discharge into the atmosphere analogy method and device, particularly one kind of soil carbon dioxide to lead
Move any regulation of carbon dioxide flux and the standard set-up and method of leakage and back-diffusion coefficient.
Background technology
The main reason for greenhouse effects are climate warmings, wherein carbon dioxide are most important greenhouse gases.Complete
In fullerenes cyclic process, carbon dioxide is the important form and link of global carbon in soil.The carbon dioxide flux of soil
The important measure index exchanged as land with atmosphere interface greenhouse gases, not only reflects soil physics, soil chemistry, soil
Biological property, it also reflects the mankind and land use, underground mineral resources, karst situation, the carbon dioxide flux of soil may be used also
Evaluation for vegetation or soil fertility regeneration rate.Measure soil carbon dioxide flux method and instrument have it is a variety of, existing two
Carbonoxide flux measurement process is as shown in Figure 1：It will be buckled in the sales kit (SK) 1 of a lower ending opening with treating test sample on 4, due to soil
Carbon dioxide in earth enters sales kit (SK) 1 in diffusion with seepage effect, escaping surface, causes dense carbon dioxide in sales kit (SK) 1
Degree change.Carbon dioxide in sales kit (SK) 1 is pumped into carbon dioxide meter device 2 by pump 3 with constant flow rate always, passes through measurement
Gas concentration lwevel is back-calculated to obtain carbon dioxide flux in air-flow.
The flow rate of pump 3 is larger, the gas concentration lwevel in carbon dioxide meter device 2 and the carbon dioxide in sales kit (SK) 1
Concentration is equal, and the gas concentration lwevel C in carbon dioxide meter device 2 is：
(1)
J is tested soil surface carbon dioxide flux；S is the floor space of sales kit (SK) 1；V is the spatial volume of sales kit (SK) 1；For the leadage coefficient of sales kit (SK) 1；For back-diffusion coefficient；T is the time for collecting carbon dioxide.
Formula（1）Solution be：
(2)
For ambient carbon dioxide concentration, gas concentration lwevel becomes in the sales kit (SK) 1 obtained by multiple measurement period measurements
Law can obtains carbon dioxide flux by being linearly or nonlinearly fitted.
Because soil carbon dioxide flux has a greater change with the change of the epidemic disaster and air pressure of environment, therefore, examine
Measure the method for soil carbon dioxide flux and the accuracy and reliability of instrument, it is necessary to ungentle by the epidemic disaster of environment
The soil carbon dioxide flux standard set-up of buckling.Chinese patent literature discloses a kind of " any regulation of carbon dioxide flux
With leakage and the method and standard set-up of back-diffusion coefficient（Application number：201510052723.0）", the device uses multiple apertures
Opening and closing adjust leakage and back-diffusion coefficient, but in practice because dust may block aperture, change leakage and anti-expand
Dissipate coefficient.
The content of the invention
The purpose of the present invention be overcome prior art it is above-mentioned deficiency and provide one kind can actively arbitrarily adjust titanium dioxide
Carbon flux and leakage and the standard set-up and method of back-diffusion coefficient, the apparatus and method can be used in examining measurement carbon dioxide
The accuracy and reliability of the instrumentation and testing method of flux.
The technical scheme is that：Regulation of carbon dioxide flux and leakage and the standard set-up of back-diffusion coefficient, including
Opening sample case, panel, adjustable micro pump, first flowmeter, adsorption tube, second flowmeter, regulating valve, buffer container, heat exchange
Device, pressure-reducing valve and carbon dioxide air source.
Described panel is provided with inlet suction port, air outlet adapter and carbon dioxide air source joint, carbon dioxide air source joint
It is between inlet suction port and air outlet adapter, panel is using surface plate made of dense material, when opening sample case is held in
When carbon dioxide flux measuring is carried out on panel, panel can stop the back-diffusion of carbon dioxide made of dense material.
Described dense material is glass and stainless steel.
Sorbing material of the described adsorption tube equipped with energy absorbing carbon dioxide, described sorbing material is calcium hydroxide.
One end of air outlet adapter on panel is connected by pipeline with the air inlet of adjustable micro pump, and adjustable micro pump goes out
Gas port is connected by pipeline and the air inlet of first flowmeter, the air inlet that the gas outlet of first flowmeter passes through pipeline and adsorption tube
Mouth connection, the gas outlet of adsorption tube are connected by pipeline with the inlet suction port on panel, and opening sample case is covered on panel, and will
Inlet suction port, air outlet adapter and carbon dioxide air source splice housing are in opening collection radon cover, the carbon dioxide air source joint on panel
Connected by the gas outlet of pipeline and second flowmeter, the air inlet of second flowmeter is connected by the gas outlet of pipeline and regulating valve
Connect, the air inlet of regulating valve is connected by the gas outlet of pipeline and buffer container, and the air inlet of buffer container is by pipeline with changing
The gas outlet connection of hot device, the air inlet of heat exchanger are connected by the gas outlet of pipeline and pressure-reducing valve, and the air inlet of pressure-reducing valve leads to
Piping is connected with carbon dioxide air source.
Using the standard set-up of regulation of carbon dioxide flux and leakage and back-diffusion coefficient come actively any regulation titanium dioxide
The process of Carbon flux, the leakage of standard set-up and back-diffusion coefficient is as follows：
Opening sample case is held on panel, ensures No leakage between sales kit (SK) and plate contact face, then connects two
Carbonoxide source of the gas, by regulating valve come regulation of carbon dioxide flux.
The flow rate of adjustable micro pump is controlled to adjust leakage and back-diffusion coefficient.Formed due to opening sample case and panel
Carbon dioxide in confined space can not be escaped into ambient atmosphere by leakage and back-diffusion effect, can only be adjustable with air
Micro pump is drawn through first flowmeter and enters adsorption tube, and the carbon dioxide in air is adsorbed the sorbing material absorption in pipe
Afterwards, not carbonated air enter opening sales kit (SK), this makes it possible to adjusted by controlling the flow rate of adjustable micro pump
Leakage and back-diffusion coefficient.
The present invention further technical scheme be：Pipeline between first flowmeter and adsorption tube is disconnected.
Opening sample case is held on panel, ensures No leakage between sales kit (SK) and plate contact face, then connects two
Carbonoxide source of the gas, by regulating valve come regulation of carbon dioxide flux.
The flow rate of adjustable micro pump is controlled to adjust leakage and back-diffusion coefficient, is formed due to opening sample case and panel
Carbon dioxide in confined space can not be escaped into ambient atmosphere by leakage and back-diffusion effect, can only be adjustable with air
Micro pump is drawn through first flowmeter and enters ambient atmosphere, and the carbon dioxide in the air of ambient atmosphere is adsorbed the suction in pipe
After enclosure material absorption, not carbonated air enter opening sales kit (SK), this makes it possible to by controlling adjustable micro pump
Flow rate come adjust leakage and back-diffusion coefficient.
The present invention has following features compared with prior art：
Device and measuring method are simple, and carbon dioxide flux, leakage and back-diffusion coefficient actively can be adjusted arbitrarily.
The detailed construction of the present invention is further described below in conjunction with the drawings and specific embodiments.
Brief description of the drawings
Accompanying drawing 1 is existing carbon dioxide flux measuring device structural representation；
Accompanying drawing 2 is that regulation of carbon dioxide flux provided by the invention and the standard set-up structure of leakage and back-diffusion coefficient are shown
It is intended to, first flowmeter is connected with adsorption tube by pipeline in figure；
Accompanying drawing 3 is that regulation of carbon dioxide flux provided by the invention and the standard set-up structure of leakage and back-diffusion coefficient are shown
It is intended to, first flowmeter disconnects with adsorption tube in figure.
Embodiment
Embodiment one, regulation of carbon dioxide flux and the standard set-up of leakage and back-diffusion coefficient, including opening sample case
1st, panel 5, adjustable micro pump 6, first flowmeter 7, adsorption tube 8, second flowmeter 9, regulating valve 10, buffer container 11, heat exchange
Device 12, pressure-reducing valve 13 and carbon dioxide air source 14.
Described panel 5 is provided with inlet suction port 5-1, air outlet adapter 5-2 and carbon dioxide air source joint 5-3, titanium dioxide
Carbon gas source connector 5-3 is between inlet suction port 5-1 and air outlet adapter 5-2, and panel 5 is using plane made of dense material
Plate, when opening sample case 1, which is held in, carries out carbon dioxide flux measuring on panel 5, panel 5 can hinder made of dense material
Keep off the back-diffusion of carbon dioxide.
Described dense material is glass and stainless steel.
Sorbing material of the described adsorption tube 8 equipped with energy absorbing carbon dioxide, described sorbing material is calcium hydroxide.
One end of air outlet adapter 5-2 on panel 5 is connected by pipeline with the air inlet of adjustable micro pump 6, adjustable micro
The gas outlet of pump 6 is connected by pipeline with the air inlet of first flowmeter 7, and the gas outlet of first flowmeter 7 passes through pipeline and suction
The air inlet connection of attached pipe 8, the gas outlet of adsorption tube 8 are connected by pipeline with the inlet suction port 5-1 on panel 5, opening sample
Case 1 is covered on panel 5, and inlet suction port 5-1, air outlet adapter 5-2 and carbon dioxide air source joint 5-3 are covered on into opening collection radon cover
In 5, the carbon dioxide air source joint 5-3 on panel 5 is connected by pipeline with the gas outlet of second flowmeter 9, second flowmeter 9
Air inlet be connected by pipeline with the gas outlet of regulating valve 10, the air inlet of regulating valve 10 passes through pipeline and buffer container 11
Gas outlet is connected, and the air inlet of buffer container 11 is connected by pipeline with the gas outlet of heat exchanger 12, the air inlet of heat exchanger 12
It is connected by pipeline with the gas outlet of pressure-reducing valve 13, the air inlet of pressure-reducing valve 13 is connected by pipeline with carbon dioxide air source 14.
Using the standard set-up of regulation of carbon dioxide flux and leakage and back-diffusion coefficient come actively any regulation titanium dioxide
The process of Carbon flux, the leakage of standard set-up and back-diffusion coefficient is as follows：
Opening sample case 1 is held on panel 5, ensures No leakage between sales kit (SK) 1 and the contact surface of panel 5, Ran Houjie
Logical carbon dioxide air source 14, by regulating valve 10 come regulation of carbon dioxide flux.
The flow rate of adjustable micro pump 6 is controlled to adjust leakage and back-diffusion coefficient.Due to 5 groups of opening sample case 1 and panel
Into confined space in carbon dioxide can not by leakage and back-diffusion effect escape into ambient atmosphere, can only be with air quilt
Adjustable micro pump 6 is drawn through first flowmeter 7 and enters adsorption tube 8, and the carbon dioxide in air is adsorbed the adsorption material in pipe 8
After material absorption, not carbonated air enter opening sales kit (SK) 1, this makes it possible to the stream by controlling adjustable micro pump 6
Rate come adjust leakage and back-diffusion coefficient.
Embodiment two, regulation of carbon dioxide flux and the standard set-up of leakage and back-diffusion coefficient, reference embodiment one, with
Unlike embodiment one, the pipeline between first flowmeter 7 and adsorption tube 8 is disconnected.
Using the standard set-up of regulation of carbon dioxide flux and leakage and back-diffusion coefficient come actively any regulation titanium dioxide
The process of Carbon flux, the leakage of standard set-up and back-diffusion coefficient is as follows：
Opening sample case 1 is held on panel 5, ensures No leakage between sales kit (SK) 1 and the contact surface of panel 5, Ran Houjie
Logical carbon dioxide air source 14, by regulating valve 10 come regulation of carbon dioxide flux.
The process of regulation of carbon dioxide flux, the leakage of standard set-up and back-diffusion coefficient is as follows：
The flow rate of adjustable micro pump 6 is controlled to adjust leakage and back-diffusion coefficient, due to 5 groups of opening sample case 1 and panel
Into confined space in carbon dioxide can not by leakage and back-diffusion effect escape into ambient atmosphere, can only be with air quilt
Adjustable micro pump 6 is drawn through first flowmeter 7 and enters ambient atmosphere, the adsorbed pipe of the carbon dioxide in the air of ambient atmosphere
After sorbing material absorption in 8, not carbonated air enter opening sales kit (SK) 1, this makes it possible to adjustable by controlling
The flow rate of micro pump 6 come adjust leakage and back-diffusion coefficient.
Claims (4)
1. regulation of carbon dioxide flux and leakage and the standard set-up of back-diffusion coefficient, it is characterized in that：Including opening sample case, face
Plate, adjustable micro pump, first flowmeter, adsorption tube, second flowmeter, regulating valve, buffer container, heat exchanger, pressure-reducing valve and two
Carbonoxide source of the gas；
Described panel is provided with inlet suction port, air outlet adapter and carbon dioxide air source joint, and carbon dioxide air source joint exists
Between inlet suction port and air outlet adapter, panel is using surface plate made of dense material, when opening sample case is held in panel
During upper progress carbon dioxide flux measuring, panel can stop the back-diffusion of carbon dioxide made of dense material；
Described dense material is glass and stainless steel；
Sorbing material of the described adsorption tube equipped with energy absorbing carbon dioxide, described sorbing material is calcium hydroxide；
One end of air outlet adapter on panel is connected by pipeline with the air inlet of adjustable micro pump, the gas outlet of adjustable micro pump
Connected by pipeline and the air inlet of first flowmeter, the gas outlet of first flowmeter is connected by the air inlet of pipeline and adsorption tube
Connecing, the gas outlet of adsorption tube is connected by pipeline with the inlet suction port on panel, and opening sample case is covered on panel, and by air inlet
In opening collection radon cover, the carbon dioxide air source joint on panel passes through for joint, air outlet adapter and carbon dioxide air source splice housing
The gas outlet of pipeline and second flowmeter is connected, and the air inlet of second flowmeter is connected by the gas outlet of pipeline and regulating valve,
The air inlet of regulating valve is connected by the gas outlet of pipeline and buffer container, and the air inlet of buffer container passes through pipeline and heat exchanger
Gas outlet connection, the air inlet of heat exchanger connected by the gas outlet of pipeline and pressure-reducing valve, and the air inlet of pressure-reducing valve passes through pipe
Road is connected with carbon dioxide air source.
2. using regulation of carbon dioxide flux as claimed in claim 1 and the standard set-up of leakage and back-diffusion coefficient come actively
Any regulation of carbon dioxide flux, the leakage of standard set-up and back-diffusion coefficient, it is characterized in that：
Opening sample case is held on panel, ensures No leakage between sales kit (SK) and plate contact face, then connects titanium dioxide
Carbon source of the gas, by regulating valve come regulation of carbon dioxide flux；
The flow rate of adjustable micro pump is controlled to adjust leakage and back-diffusion coefficient, due to opening sample case and panel form it is closed
Carbon dioxide in space can not be escaped into ambient atmosphere by leakage and back-diffusion effect, can only be with air by adjustable micro
Pumped enters adsorption tube by first flowmeter, after the carbon dioxide in air is adsorbed the sorbing material absorption in pipe, no
Carbonated air enter opening sales kit (SK), this makes it possible to by control the flow rate of adjustable micro pump adjust leakage and
Back-diffusion coefficient.
3. regulation of carbon dioxide flux as claimed in claim 1 and the standard set-up of leakage and back-diffusion coefficient, it is characterized in that：
Pipeline between first flowmeter and adsorption tube is disconnected.
4. using regulation of carbon dioxide flux as claimed in claim 3 and the standard set-up of leakage and back-diffusion coefficient come actively
Any regulation of carbon dioxide flux, the leakage of standard set-up and back-diffusion coefficient, it is characterized in that：
Opening sample case is held on panel, ensures No leakage between sales kit (SK) and plate contact face, then connects titanium dioxide
Carbon source of the gas, by regulating valve come regulation of carbon dioxide flux；
The flow rate of adjustable micro pump is controlled to adjust leakage and back-diffusion coefficient, due to opening sample case and panel form it is closed
Carbon dioxide in space can not be escaped into ambient atmosphere by leakage and back-diffusion effect, can only be with air by adjustable micro
Pumped enters ambient atmosphere by first flowmeter, and the carbon dioxide in the air of ambient atmosphere is adsorbed the adsorption material in pipe
After material absorption, not carbonated air enter opening sales kit (SK), this makes it possible to the flow rate by controlling adjustable micro pump
To adjust leakage and back-diffusion coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610275520.2A CN105974086B (en) | 2016-04-29 | 2016-04-29 | Regulation of carbon dioxide flux and leakage and the standard set-up and method of back-diffusion coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610275520.2A CN105974086B (en) | 2016-04-29 | 2016-04-29 | Regulation of carbon dioxide flux and leakage and the standard set-up and method of back-diffusion coefficient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105974086A CN105974086A (en) | 2016-09-28 |
| CN105974086B true CN105974086B (en) | 2018-01-16 |
Family
ID=56994043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610275520.2A Expired - Fee Related CN105974086B (en) | 2016-04-29 | 2016-04-29 | Regulation of carbon dioxide flux and leakage and the standard set-up and method of back-diffusion coefficient |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105974086B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0611965A2 (en) * | 1990-03-09 | 1994-08-24 | Shimadzu Corporation | Carbon analyzer for both aqueous solutions and solid samples |
| JPH07333129A (en) * | 1994-06-03 | 1995-12-22 | Norin Suisansyo Hokuriku Nogyo Shikenjo | Gas flux measuring method and apparatus |
| JP4630092B2 (en) * | 2005-03-07 | 2011-02-09 | 財団法人電力中央研究所 | Forest CO2 flux measurement method |
| CN103487360A (en) * | 2013-09-26 | 2014-01-01 | 衡阳师范学院 | Method for quickly measuring radon exhalation rate in closed-loop manner |
| CN103499672A (en) * | 2013-10-16 | 2014-01-08 | 衡阳师范学院 | Method and device for optionally adjusting radon exhalation rate and effective decay constants |
| CN104678767A (en) * | 2015-02-02 | 2015-06-03 | 衡阳师范学院 | Method for randomly adjusting carbon dioxide flux and leakage and back-diffusion coefficients and standard device |
| CN105182398A (en) * | 2015-09-30 | 2015-12-23 | 衡阳师范学院 | Quick radon exhalation rate measurement method using integral for closed loop part of electrostatic collection method |
-
2016
- 2016-04-29 CN CN201610275520.2A patent/CN105974086B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0611965A2 (en) * | 1990-03-09 | 1994-08-24 | Shimadzu Corporation | Carbon analyzer for both aqueous solutions and solid samples |
| JPH07333129A (en) * | 1994-06-03 | 1995-12-22 | Norin Suisansyo Hokuriku Nogyo Shikenjo | Gas flux measuring method and apparatus |
| JP4630092B2 (en) * | 2005-03-07 | 2011-02-09 | 財団法人電力中央研究所 | Forest CO2 flux measurement method |
| CN103487360A (en) * | 2013-09-26 | 2014-01-01 | 衡阳师范学院 | Method for quickly measuring radon exhalation rate in closed-loop manner |
| CN103499672A (en) * | 2013-10-16 | 2014-01-08 | 衡阳师范学院 | Method and device for optionally adjusting radon exhalation rate and effective decay constants |
| CN104678767A (en) * | 2015-02-02 | 2015-06-03 | 衡阳师范学院 | Method for randomly adjusting carbon dioxide flux and leakage and back-diffusion coefficients and standard device |
| CN105182398A (en) * | 2015-09-30 | 2015-12-23 | 衡阳师范学院 | Quick radon exhalation rate measurement method using integral for closed loop part of electrostatic collection method |
Non-Patent Citations (1)
| Title |
|---|
| 氡析出率测量过程中抽气采集容器内氡运移的数值研究;谭延亮等;《核电子学与探测技术》;20140420;第34卷(第4期);第456－460页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105974086A (en) | 2016-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104729948B (en) | Coal containing methane gas aqueous vapor two phase fluid flow experimental system and method | |
| CN103487360B (en) | Closed loop quickly measures the method for precipitation rate of radon | |
| CN105929443B (en) | Actively any method for adjusting precipitation rate of radon and Effective Decay Constant | |
| CN205138940U (en) | Test coal body gas adsorbs desorption heat effect experimental system | |
| AU2009290420B2 (en) | Method and device for detecting leaks in an underground liquid pipe, particularly a water pipe | |
| CN105353396B (en) | The method of closed loop partial integration rapid survey precipitation rate of radon | |
| CN108279182A (en) | A kind of device for estimating gas absorbent | |
| CN102169113A (en) | Verifying device and method for online sulfur hexafluoride hygrometer | |
| CN102539637A (en) | Environment testing device | |
| CN114354290B (en) | Device and method for dynamically measuring water body greenhouse gas emission flux | |
| CN109212580B (en) | Method for measuring radium concentration in water by open-loop type electrostatic collection two-stage method | |
| CN105182398A (en) | Quick radon exhalation rate measurement method using integral for closed loop part of electrostatic collection method | |
| CN107655637A (en) | The pulsed halogen gas detection method and equipment of a kind of iodine adsorber leak detection | |
| CN103697974B (en) | A kind of liquid metal flowmeter method of calibration | |
| CN103149122A (en) | Instrument for analyzing active calcium in calcium-series auxiliary agent for steelmaking | |
| CN105974086B (en) | Regulation of carbon dioxide flux and leakage and the standard set-up and method of back-diffusion coefficient | |
| CN206321533U (en) | A kind of portable soil air penetrability determines device | |
| CN108195950A (en) | The dilution error detection device and its detection method of calibrating gas dilution device based on gas chromatograph | |
| CN104678767B (en) | Any regulation of carbon dioxide flux and the method and standard set-up of leakage and back-diffusion coefficient | |
| CN203534928U (en) | Experimental device for testing adsorption/desorption performance of adsorbing working substance pair | |
| CN109655870A (en) | Flow gas radon need arbitrarily adjusts the device and method of precipitation rate of radon and Effective Decay Constant | |
| CN202033344U (en) | Device for verifying sulfur hexafluoride on-line hygrometer | |
| CN209372811U (en) | A kind of measuring device detecting tank car liquid nitrogen gas moisture | |
| CN105352871A (en) | Soil air permeability in-suit efficient measuring method | |
| CN205538405U (en) | Blowing and sweeping trapping instrument used for continuously observing volatile organic compounds in water online |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yuan Hongzhi Inventor after: Tan Yanliang Inventor before: Tan Yanliang Inventor before: Yuan Hongzhi |
|
| 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: 20180116 Termination date: 20200429 |