CN202793969U - Volatile gas diffusion detecting equipment for accurately controlling concentration - Google Patents
Volatile gas diffusion detecting equipment for accurately controlling concentration Download PDFInfo
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- CN202793969U CN202793969U CN 201220392323 CN201220392323U CN202793969U CN 202793969 U CN202793969 U CN 202793969U CN 201220392323 CN201220392323 CN 201220392323 CN 201220392323 U CN201220392323 U CN 201220392323U CN 202793969 U CN202793969 U CN 202793969U
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Abstract
The utility model provides volatile gas diffusion detecting equipment for accurately controlling a concentration. An accurate liquid injection pump is controlled by a computer to feed a volatile liquid to a liquid injection dropper through a switch control valve and an anti-corrosion pipeline and then the volatile liquid reaches a heat conducting bead in a liquid volatilizer; the heat conducting bead is heated through a volatilizing and heating sleeve to generate heat, so that the volatile liquid is sublimated and conveyed to a diffuser to enter a concentration cabin under the driving of gas flow controlled by a mixed gas flow valve; excessive non-volatile liquids flow into a collecting bottle through a rotating valve or fed into an atomizing nozzle through a liquid moving pump to be atomized; the atomized non-volatile liquids enter the concentration cabin; input compressed gas is controlled by a pure gas flow valve to enter the concentration cabin from the other end of the diffuser; a volatile gas concentration detector is used for detecting the concentration and transmitting the concentration to a computer; the computer is used for feeding back a result of controlling each element to accurately control the concentration of the interior volatile gas according to requirements; and the whole process can be controlled and stored by the computer; and the volatile gas diffusion detecting equipment is widely applied to natural science researches on occupational health, military science, environmental protection, chemical materials, respiratory medicines and the like.
Description
Technical field
The utility model provides a kind of volatilization gas diffusion checkout equipment of accurate controlled concentration.
Background technology
Along with science and technology and environmental protection development; people are more thinner more deep to complicated and popularity understanding and the concern of the Nature climatic environment Air Contamination for person of low position worker's climatic environment; in occupational health; military science; environmental protection; chemical material; how the volatilization gas environment that needs to simulate accurate concentration in the physicisms such as breathing medical science affects for the mankind and nature under this environmental activity with research; one of them important step be with a certain amount of volatile liquid as requested sublimation gases change into the volatilization gas of an accurate concentration and keep stable with air after according to accurate ratio sealing mixing and invariable gas is transported under the condition of constant temperature and pressure in the closed in space experimental apparatus; animal used as test or experiment material spread test experience, obtain valuable science data by this experiment; countermeasure and correct conclusion.In the past this type of experiment mostly adopts irregular container or cavity to put into a certain amount of volatile liquid electricity consumption heating sublimation, there is not accurate ratio, temperature and pressure is also uncontrollable, and owing to there is not continuous gas entry, constant density control and constant voltage exhaust control, experimental period is short, repeatability is bad, precision is low, cause the result of experiment not rigorous, the development that this difficult problem has restricted association area research progressively draws attention in academia, therefore design and develop and a kind ofly can accurately control the equipment that escaping gas concentration spreads test experience, enable sublimation gases as requested and change into the volatilization gas of an accurate concentration and keep stable with air after according to accurate ratio sealing mixing and invariable gas is transported under the condition of constant temperature and pressure in the closed in space experimental apparatus, animal used as test or experiment material spread test experience becomes current urgent needs.
Summary of the invention
For addressing the above problem; the purpose of this utility model provides a kind of volatilization gas diffusion checkout equipment of accurate controlled concentration; send to the fluid injection water dropper by switching control pilot and anticorrosion pipeline and arrive above the heat conduction pearl in the liquid volatilizer by the accurate liquid charge pump of the computer control liquid that will volatilize; the volatilization steam jacket is heated, and the heat conduction pearl produces heat enters the concentration cabin so that volatilised liq distils and be transported to fan diffuser under the air-flow of mixed airshed valve control drives; not volatile unnecessary liquid flows to receiving flask or is moved liquid pump by cross-over valve and is sent to atomizer and also is atomised in the concentration cabin; from the pressure gas of clean gas flow valve control inputs from the fan diffuser other end in the concentration cabin; the volatilization gas concentration detector detects concentration and is transferred to computing machine; computing machine as requested each element of FEEDBACK CONTROL reaches the result of the concentration of the inner volatilization gas of accurate control; form the volatilization gas of accurate concentration and keep stable with air after according to accurate ratio mixing and invariable continuous plenum system is transported under the condition of constant temperature and pressure in the closed in space experimental apparatus by the gasification that can realize distilling as requested of this complete equipment; animal used as test or experiment material spread test experience; obtain valuable science data by this experiment; countermeasure and correct conclusion, this equipment is in occupational health; military science; environmental protection; chemical material; widespread use in the physicisms such as breathing medical science.
For achieving the above object, the technical solution adopted in the utility model provides a kind of volatilization gas diffusion checkout equipment of accurate controlled concentration, wherein: comprise by computer-controlled accurate liquid charge pump being sent in the liquid volatilizer by the volatilization liquid suction that switching control pilot and anticorrosion pipeline will volatilize in the liquid sealing bottle, liquid volatilizer is that an inside is equipped with many small ball shape heat conduction integuments of being made by Heat Conduction Material and is enclosed in the vertical strip pipe of placing, the pipe periphery closely surrounds the volatilization steam jacket by the computer control temperature, can heat to the heat conduction pearl by tube wall, air-flow can be passed through in the gap that exists between the heat conduction pearl, having a tubule road that arrives by switching control pilot and anticorrosion pipeline from accurate liquid charge pump to pass the pipe wall on the heat conduction pearl turns downwards and a fluid injection water dropper is installed, pipe top flaring exit is connecting gas mixing pipe and is leading to fan diffuser one end, the gas mixing pipe periphery is being wrapped the transmission steam jacket and is being guaranteed can not be condensed in the volatilization gas transmission course, pipe bottom flaring exit is connecting cross-over valve, there is a fairlead to be connected to mixed airshed valve on the pipe sidewall of bottom, volatile liquid is from the infiltration that faces down of heat conduction pearl, because heating of volatilization steam jacket, the heat conduction pearl is transmitted heat so that volatilised liq distils and be transported to fan diffuser by gas mixing pipe under the air-flow mixing drive of mixed airshed valve control, fan diffuser is the collar plate shape hollow body that a metal material is made, its lower surface of hollow body contains a lot of small sircle holes can guarantee thus outwards diffusion circulation of volatilization gas, there is a tapped circular hole hollow body top, be close to the hollow body upper surface be equipped with in the middle of also round-meshed diffusion steam jacket heat to fan diffuser, the diffusion steam jacket upper surface of hollow body top can also be heated so that atomizing effect is better to atomizer simultaneously, the fan diffuser another side connects a pure tracheae and is connected to compressed pneumatic pump and can adjusts the pure air flow that is input to the concentration cabin be used for the too high volatilization gas of dilute concentration to guarantee needed accurate concentration range under computer control, enter volatilization gas concentration cabin, not volatile unnecessary liquid flows into the bottom and flows to receiving flask or pass through cross-over valve by cross-over valve, liquid collecting tube is moved liquid pump and switching control pilot is sent to atomizer, atomizer is that its inner structure that metal material is made is that the pipeline of the not volatile unnecessary liquid that enters with the transfer pipet pass when introducing pressurized air and arrive the atomizer outlet along the atomizing tracheae from the atomization air flow valve is crossing herein, driving liquid under a gas high speed impact forms the two-phase flow aerosol and sprays downwards under the venturi principle effect, because the atomizer front end has external thread just in time to be installed in fan diffuser hollow body top and has in the tapped circular hole, the diffusion steam jacket upper surface of hollow body top can also be heated so that atomizing effect is better to atomizer itself simultaneously, and the volatilization gas of atomizing nature mixing downward uniform-flow in fan diffuser goes out to be diffused in the volatilization gas concentration cabin, the concentration cabin is an airtight circular cabin that has heat-barrier material to make, the smooth neat circular configuration of interior surface thereof is conducive to volatilization gas nature combined balance system, the fan diffuser and the nozzle that are installed in top discharge exhaust in the constant pressure situation with the output constant voltage vent valve that is installed in the bottom when air inlet reaches a certain amount of, guarantee from top to bottom even constant disperse circulation of the low weight escaping gas diffusion of proportion, be placed in the detection that the volatilization gas concentration detector of middle can maximum accuracy and reflect that feeding back to computing machine at the average volatilization gas concentration value of concentration cabin whole interior carries out data and process, other have special pressurized air of drawing from compressed pneumatic pump by clean gas flow valve control inputs to fan diffuser in being diffused into the concentration cabin, the volatilization gas concentration detector detects concentration and is transferred to computing machine, computing machine is controlled each valve as requested well, move liquid pump, accurate liquid charge pump, gas flow valve and steam jacket reach the result of the concentration of the inner volatilization gas of accurate control, and whole control procedure can be by computer control and storage.
Effect of the present utility model has provided a kind of volatilization gas diffusion checkout equipment of accurate controlled concentration; design and develop out a kind of more scientific; more robotization; more accurate computing machine as requested each element of FEEDBACK CONTROL reaches the result of the concentration of the inner volatilization gas of accurate control; form the volatilization gas of accurate concentration and keep stable with air after according to accurate ratio mixing and invariable continuous plenum system is transported under the condition of constant temperature and pressure in the closed in space experimental apparatus by the gasification that can realize distilling as requested of this complete equipment; animal used as test or experiment material spread test experience; obtain valuable science data by this experiment; countermeasure and correct conclusion, this equipment is in occupational health; military science; environmental protection; chemical material; widespread use in the physicisms such as breathing medical science.
Description of drawings
Fig. 1 is the structural representation of the utility model equipment
1, volatilization liquid sealing bottle 2, accurate liquid charge pump 3, anticorrosion pipeline
4, switching control pilot 5, fluid injection water dropper 6, liquid volatilizer
7, volatilization steam jacket 8, heat conduction pearl 9, cross-over valve
10, receiving flask 11, mixed airshed valve 12, liquid collecting tube
13, move liquid pump 14, computing machine 15, printer
16, volatilization gas concentration detector 17, fan diffuser 18, transmission steam jacket
19, diffusion steam jacket 20, gas mixing pipe 21, transfer pipet road
22, atomizer 23, atomizing tracheae 24, pure tracheae
25, atomization gas flow valve 26, pure gas flow valve 27, compressed pneumatic pump
28, concentration cabin 29, output constant voltage vent valve
Embodiment
Reaching by reference to the accompanying drawings embodiment is illustrated the volatilization gas of a kind of accurate controlled concentration of the present utility model diffusion assay device structures.
As shown in Figure 1, the volatilization gas diffusion checkout equipment of a kind of accurate controlled concentration of the present utility model, comprise by the accurate liquid charge pump 2 of computing machine 14 control and aspirate and be sent in the liquid volatilizer 6 by will volatilize volatilization liquid in the liquid sealing bottle 1 of switching control pilot 4 and anticorrosion pipeline 3, liquid volatilizer 6 is that an inside is equipped with many small ball shape heat conduction pearls 8 of being made by Heat Conduction Material and is sealed in the vertical strip pipe of placing, the pipe periphery closely surrounds the volatilization steam jacket 7 by the computer control temperature, can heat to heat conduction pearl 8 by tube wall, air-flow can be passed through in the gap that exists between the heat conduction pearl 8, having a tubule road that arrives by switching control pilot 4 and anticorrosion pipeline 3 from accurate liquid charge pump 2 to pass the pipe wall on heat conduction pearl 8 turns downwards and a fluid injection water dropper 5 is installed, pipe top flaring exit is connecting gas mixing pipe 20 and is leading to fan diffuser 17 1 ends, gas mixing pipe 20 peripheries are being wrapped transmission steam jacket 18 and are being guaranteed can not be condensed in the volatilization gas transmission course, pipe bottom flaring exit is connecting cross-over valve 9, there is a fairlead to be connected to mixed airshed valve 11 on the pipe sidewall of bottom, volatile liquid is from heat conduction pearl 8 infiltration that faces down, because heating of volatilization steam jacket 7, heat conduction pearl 8 is transmitted heat so that volatilised liq distils and be transported to fan diffuser 17 by gas mixing pipe 20 under the air-flow mixing drive of mixed airshed valve 11 controls, fan diffuser 17 is collar plate shape hollow bodies that a metal material is made, its lower surface of hollow body contains a lot of small sircle holes can guarantee thus outwards diffusion circulation of volatilization gas, there is a tapped circular hole hollow body top, be close to the hollow body upper surface be equipped with in the middle of also round-meshed diffusion steam jacket 19 heat to fan diffuser, diffusion steam jacket 19 upper surfaces of hollow body top can also be heated so that atomizing effect is better to atomizer 22 simultaneously, the fan diffuser another side connects a pure tracheae 24 and is connected to compressed pneumatic pump 27 and can adjusts the pure air flow that is input to concentration cabin 28 be used for the too high volatilization gas of dilute concentration to guarantee needed accurate concentration range under computing machine 14 controls, enter volatilization gas concentration cabin 28, not volatile unnecessary liquid flows into the bottom and flows to receiving flask 10 or moved liquid pump 13 and switching control pilot 4 is sent to atomizer 22 by cross-over valve 9 through liquid collecting tube 12 by cross-over valve 9, atomizer 22 is that its inner structure of a metal material making is when introducing pressurized air along 22 outlet of atomizing tracheae 23 arrival atomizers from atomization gas flow valve 25 and the pipeline of the not volatile unnecessary liquid of transfer pipet road 21 introducings intersects herein, driving liquid under a gas high speed impact forms the two-phase flow aerosol and sprays downwards under the venturi principle effect, because atomizer 22 front ends have external thread just in time to be installed in fan diffuser 17 hollow body tops and have in the tapped circular hole, diffusion steam jacket 19 upper surfaces of hollow body top can also itself be heated so that atomizing effect is better to atomizer 22 simultaneously, and the volatilization gas of atomizing nature mixing goes out to be diffused in the volatilization gas concentration cabin 28 at fan diffuser 17 interior downward uniform-flows, concentration cabin 28 is airtight circular cabins that made by heat-barrier material, the smooth neat circular configuration of interior surface thereof is conducive to volatilization gas nature combined balance system, the fan diffuser 17 and the atomizer 22 that are installed in top discharge exhaust in the constant pressure situation with the output constant voltage vent valve 29 that is installed in the bottom when air inlet reaches a certain amount of, guarantee from top to bottom even constant disperse circulation of the low weight escaping gas diffusion of proportion, be placed in the detection that the volatilization gas concentration detector 16 of middle can maximum accuracy and reflect that feeding back to computing machine 14 at the average volatilization gas concentration value of concentration cabin 28 whole interior carries out data and process, other has the special pressurized air of drawing from compressed pneumatic pump 27 to be diffused in the concentration cabin 28 to fan diffuser 17 by pure gas flow valve 26 control inputs again, volatilization gas concentration detector 16 detects concentration and is transferred to computing machine 14, computing machine 14 is controlled each valve as requested well, move liquid pump 13, accurate liquid charge pump 2, gas flow valve and steam jacket reach the result of the concentration of the inner volatilization gas of accurate control, and whole control procedure can be by computing machine 14 controls and storage.
Embodiment:
The volatilization gas diffusion checkout equipment of a kind of accurate controlled concentration of use the utility model is ready in advance to do the volatile liquid of experiment and searches relevant physical and chemical index when exposing experiment, biochemical temperature for example, ignition temperature, pressure etc., determining test parameters is input in the computer program in advance, in concentration cabin 28, put into the required animal of experiment, volatilization gas concentration detector 16 or other needed instrument and equipments are also adjusted instrument and equipment, concentration cabin 28 is airtight, connect each pipeline and element and open in advance computing machine 14, contactor, each steam jacket and compressed pneumatic pump 27, to test needed volatile liquid after temperature and source of the gas reach requirement puts into volatilization liquid sealing bottle 1 and is connected to accurate liquid charge pump 2, according to computing machine 14 program volatile liquids by anticorrosion pipeline 3 and switching control pilot 4 and fluid injection water dropper 5 slowly the heat conduction pearls 8 in the influent volatilizer 6 permeate from top to bottom, the mixed airshed valve 11 of the pressurized air that compressed pneumatic pump 27 provides by computing machine 14 control flows upwards flows into from liquid volatilizer 6 bottoms and drives because the escaping gas mixing that 8 heating of heat conduction pearl distils upwards flows and is incorporated into the gas mixing pipe 20 interior arrival tops that the outside surrounds transmission steam jacket 18 from liquid volatilizer 6 tops and has in the fan diffuser 17 that spreads steam jacket 19, aperture by bottom spreads downwards in the inflow concentration cabin 28, perhaps there are some not volatile unnecessary liquid to flow to liquid volatilizer 6 bottoms along heat conduction pearl 8, cross-over valve 9 can be switched to receiving flask 10 makes it flow into receiving flask 10 interior otherwise processed, also can move liquid pump 13 through liquid collecting tube 12 connections by computing machine 14 control cross-over valves 9 and enter into transfer pipet road 21 arrival atomizers 22 by switching control pilot 4, entering the aperture of fan diffuser 17 by bottom through atomizing tracheae 23 under the pressure gas of atomizer flow valve 25 control drives spreads downwards and flows in the concentration cabin 28, the pure pressurized air of the pure gas flow valve 26 input certain flow of computing machine 14 controls dilutes the escaping gas of mediation excessive concentration, the gas flow that can control the simultaneously accurate control inputs of volatile liquid amount of accurate liquid charge pump 2 inputs for the purpose computing machine 14 that reaches accurate controlled concentration just can achieve the goal in the airtight concentration cabin 28 of constant temperature and pressure, the volatilization gas concentration monitor 16 of laying in the concentration cabin 28 is the volatilization gas concentration numerical value in the detectable concentration cabin 28 and offer computing machine 14 and carry out record at any time, feedback, revise so that the volatilization gas concentration value in the concentration cabin 28 is more accurate, stable, when finishing smoothly, experiment operates by first closes compression air pump 27 after the test period that reliably continues to reach certain, the accurate liquid charge pump 2 of computing machine 14 autoshutdowns, switching control pilot 4, move liquid pump 13, each steam jacket, each gas flow valve and compressed pneumatic pump 27 etc., output constant voltage vent valve 29 is discharged remaining escaping gas automatically, opens concentration cabin 28 and takes out the required animal of experiment of putting in advance, volatilization gas concentration detector 16 or other needed instrument and equipments carry out a series of activities such as the scientific analysis in later stage and recruitment evaluation.
Claims (5)
1. the volatilization gas of an accurate controlled concentration spreads checkout equipment, it is characterized in that: this equipment comprises that the accurate liquid charge pump (2) by computing machine (14) control arrives fluid injection water dropper (5) by switching control pilot (4) and anticorrosion pipeline (3), it is inner from heat conduction pearl (8) infiltration that faces down that the volatilization liquid suction in the liquid sealing bottle (1) of will volatilizing is sent to liquid volatilizer (6), because heating of volatilization steam jacket (7), heat conduction pearl (8) enters volatilization gas concentration cabin (28) with the heat transmission so that volatilised liq distils and be transported to fan diffuser (17) by gas mixing pipe (20) under the air-flow mixing of mixed airshed valve (11) control drives, not volatile unnecessary liquid flows into the bottom and flows to receiving flask (10) or pass through cross-over valve (9) by cross-over valve (9), liquid collecting tube (12) is moved liquid pump (13) and switching control pilot (4) is sent to atomizer (22) through transfer pipet road (21), under driving, the air-flow of atomization gas flow valve (25) control also is atomised in the volatilization gas concentration cabin (28), the pressurized air of drawing from compressed pneumatic pump (27) is diffused in the concentration cabin (28) to fan diffuser (17) by pure gas flow valve (26) control inputs again, volatilization gas concentration detector (16) detects concentration and is transferred to computing machine (14), computing machine (14) is controlled each valve as requested well, move liquid pump (13), accurate liquid charge pump (2), gas flow valve and steam jacket reach the result of the concentration of the inner volatilization gas of accurate control, and whole control procedure can be passed through computing machine (14) storage or print at any time by printer (15).
2. the volatilization gas of accurate controlled concentration according to claim 1 spreads checkout equipment, it is characterized in that: described liquid volatilizer (6) is that an inside is equipped with many small ball shape heat conduction pearls (8) of being made by Heat Conduction Material and is sealed in the vertical strip pipe of placing, the pipe periphery closely surrounds the volatilization steam jacket (7) by the computer control temperature, can heat to heat conduction pearl (8) by tube wall, air-flow can be passed through in the gap that exists between the heat conduction pearl (8), having a tubule road that arrives by switching control pilot (4) and anticorrosion pipeline (3) from accurate liquid charge pump (2) to pass the pipe wall on heat conduction pearl (8) turns downwards and a fluid injection water dropper (5) is installed, pipe top flaring exit is connecting gas mixing pipe (20) and is leading to fan diffuser (17) one ends, gas mixing pipe (20) periphery is being wrapped transmission steam jacket (18) and is being guaranteed can not be condensed in the volatilization gas transmission course, pipe bottom flaring exit is connecting cross-over valve (9), has a fairlead to be connected to mixed airshed valve (11) on the pipe sidewall of bottom.
3. the volatilization gas of accurate controlled concentration according to claim 1 spreads checkout equipment, it is characterized in that: described fan diffuser (17) is the collar plate shape hollow body that a metal material is made, its lower surface of hollow body contains a lot of small sircle holes can guarantee thus outwards diffusion circulation of volatilization gas, there is a tapped circular hole hollow body top, be close to the hollow body upper surface be equipped with in the middle of also round-meshed diffusion steam jacket (19) heat to fan diffuser, simultaneously diffusion steam jacket (19) upper surface of hollow body top can also be heated so that atomizing effect is better to atomizer (22), and fan diffuser (17) another side connects a pure tracheae (24) and is connected to compressed pneumatic pump (27) by pure gas flow valve (26) and can adjusts the pure air flow that is input to concentration cabin (28) be used for the too high volatilization gas of dilute concentration to guarantee needed accurate concentration range under computer control.
4. the volatilization gas of accurate controlled concentration according to claim 1 spreads checkout equipment, it is characterized in that: described atomizer (22) is that its inner structure of a metal material making is when introducing pressurized air along atomizing tracheae (23) arrival atomizer (22) outlet from atomization gas flow valve (25) and the pipeline of the not volatile unnecessary liquid of transfer pipet road (21) introducing intersects herein, driving liquid under a gas high speed impact forms the two-phase flow aerosol and sprays downwards under the venturi principle effect, because atomizer (22) front end has external thread just in time to be installed in fan diffuser (17) hollow body top and has in the tapped circular hole, simultaneously diffusion steam jacket (19) upper surface of hollow body top can also itself be heated so that atomizing effect is better to atomizer (22), and the volatilization gas of atomizing nature mixing fan diffuser (17) introversive lower outside all with spread outflow.
5. the volatilization gas of accurate controlled concentration according to claim 1 spreads checkout equipment, it is characterized in that: described concentration cabin (28) is an airtight circular cabin that has heat-barrier material to make, the smooth neat circular configuration of interior surface thereof is conducive to volatilization gas nature combined balance system, be installed in the fan diffuser (17) on top, atomizer (22) and be installed in the bottom output constant voltage vent valve (29) when air inlet reaches a certain amount of, discharge exhaust in the constant pressure situation, guarantee from top to bottom even constant disperse circulation of the low weight escaping gas diffusion of proportion, be placed in the detection that the volatilization gas concentration detector (16) of middle can maximum accuracy and reflect that feeding back to computing machine at concentration cabin (28) the average volatilization gas concentration value of whole interior carries out data and process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392323 CN202793969U (en) | 2012-08-09 | 2012-08-09 | Volatile gas diffusion detecting equipment for accurately controlling concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392323 CN202793969U (en) | 2012-08-09 | 2012-08-09 | Volatile gas diffusion detecting equipment for accurately controlling concentration |
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| Publication Number | Publication Date |
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| CN202793969U true CN202793969U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392323 Withdrawn - After Issue CN202793969U (en) | 2012-08-09 | 2012-08-09 | Volatile gas diffusion detecting equipment for accurately controlling concentration |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788740A (en) * | 2012-08-09 | 2012-11-21 | 天津开发区合普工贸有限公司 | Volatile gas diffusion detecting equipment with accurate concentration control |
| CN104865164A (en) * | 2015-05-16 | 2015-08-26 | 常州大学 | Device and method for testing diffusion coefficients of gases |
| CN109738383A (en) * | 2018-12-14 | 2019-05-10 | 山东大学 | A kind of on-line monitoring equipment and method of volatile fatty acid |
| CN111141885A (en) * | 2019-05-07 | 2020-05-12 | 杭州超钜科技有限公司 | Automatic detection device and detection method for gas mercury detector |
| CN113167491A (en) * | 2018-11-19 | 2021-07-23 | 迪拉克有限责任公司 | Indoor and outdoor nano air purifier and system comprising same |
-
2012
- 2012-08-09 CN CN 201220392323 patent/CN202793969U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788740A (en) * | 2012-08-09 | 2012-11-21 | 天津开发区合普工贸有限公司 | Volatile gas diffusion detecting equipment with accurate concentration control |
| CN104865164A (en) * | 2015-05-16 | 2015-08-26 | 常州大学 | Device and method for testing diffusion coefficients of gases |
| CN104865164B (en) * | 2015-05-16 | 2018-08-14 | 常州大学 | A kind of test device and test method of gas diffusivity |
| CN113167491A (en) * | 2018-11-19 | 2021-07-23 | 迪拉克有限责任公司 | Indoor and outdoor nano air purifier and system comprising same |
| CN109738383A (en) * | 2018-12-14 | 2019-05-10 | 山东大学 | A kind of on-line monitoring equipment and method of volatile fatty acid |
| CN109738383B (en) * | 2018-12-14 | 2020-04-21 | 山东大学 | Online monitoring device and method for volatile fatty acid |
| CN111141885A (en) * | 2019-05-07 | 2020-05-12 | 杭州超钜科技有限公司 | Automatic detection device and detection method for gas mercury detector |
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Granted publication date: 20130313 Effective date of abandoning: 20140416 |
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