CN102788740B - Volatile gas diffusion detecting equipment with accurate concentration control - Google Patents
Volatile gas diffusion detecting equipment with accurate concentration control Download PDFInfo
- Publication number
- CN102788740B CN102788740B CN201210281522.4A CN201210281522A CN102788740B CN 102788740 B CN102788740 B CN 102788740B CN 201210281522 A CN201210281522 A CN 201210281522A CN 102788740 B CN102788740 B CN 102788740B
- Authority
- CN
- China
- Prior art keywords
- concentration
- gas
- liquid
- volatilization
- accurate
- 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
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention provides volatile gas diffusion detecting equipment with accurate concentration control. The volatile gas diffusion detecting equipment is characterized in that an accurate liquid injection pump controlled by a computer conveys volatile liquid to a liquid injection dropper by a switching control valve and an anticorrosion pipeline to reach heat-conducting balls in a liquid volatilizer; a volatile heating sleeve heats the heat-conducting balls to generate heat so as to lead the volatile liquid to sublimate, and the volatile liquid is conveyed to a diffuser under the driving of gas flow controlled by a gas mixing flow valve; residual liquid which is not easy to volatilize flows into a collecting bottle by a rotary valve or is conveyed to an atomizing nozzle by a liquid removing pump so as to be atomized into a concentration cabin; compressed gas is inputted into the concentration cabin from the other end of the diffuser by control of a pure gas flow valve; the concentration detected by a volatile gas concentration detector is transmitted to the computer; the computer controls all elements to reach the result for accurate control of the concentration of internal volatile gas according to the requirement feedback; and the whole process can be controlled and stored by the computer. The volatile gas diffusion detecting equipment provided by the invention can be widely applied in research of natural sciences such as occupational health, military science, environmental protection, chemical materials and respiratory medicine.
Description
Technical field
The invention 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 more carefully more deep to complicated and popularity understanding and the concern of the Nature climatic environment Air Contamination for person of low position's work climatic environment, in occupational health, military science, environmental protection, chemical material, in the physicisms such as breathing medical science, need the volatilization gas environment that simulates accurate concentration for the mankind and nature, how to affect under this environmental activity with research, one of them important step be by a certain amount of volatile liquid as requested sublimation gases change into the volatilization gas of an accurate concentration and according to the sealing of accurate ratio, mix the stable and invariable gas of rear maintenance with air and under the condition of constant temperature and pressure, be transported in a closed in space experimental apparatus, animal used as test or experiment material spread test experience, by this experiment, obtain valuable science data, countermeasure and correct conclusion.This type of experiment in the past mostly adopts irregular container or cavity to put into a certain amount of volatile liquid electricity consumption heating sublimation, there is no accurate ratio, temperature and pressure is also uncontrollable, and owing to there is no 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 a kind of equipment that escaping gas concentration can accurately be controlled spread test experience, enabling as requested sublimation gases changes into the volatilization gas of an accurate concentration and according to accurate ratio sealing, mixes the stable and invariable gas of rear maintenance with air and under the condition of constant temperature and pressure, be transported in a 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 object of this invention is to provide a kind of volatilization gas diffusion checkout equipment of accurate controlled concentration, by the accurate liquid charge pump of computer control, volatilization liquid being sent to fluid injection water dropper by switching control pilot and anticorrosion pipeline arrives above the heat conduction pearl in liquid volatilizer, the heat conduction pearl of heating produces heat and makes volatilised liq distillation and be transported to fan diffuser under the air-flow of mixed airshed valve control drives to enter concentration cabin volatilization steam jacket, not volatile unnecessary liquid is flow to receiving flask or is moved liquid pump by cross-over valve and is sent to atomizer and is also atomised in concentration cabin, from the pressure gas of clean gas flow valve control inputs from the fan diffuser other end in concentration cabin, volatilization gas concentration detector detects concentration and is transferred to computing machine, the computing machine as requested each element of FEEDBACK CONTROL reaches the result of the concentration of the inner volatilization gas of accurate control, by this complete equipment, can realize as requested distillation gasification forms the volatilization gas of accurate concentration and according to accurate ratio, mixes the stable and invariable continuous plenum system of rear maintenance with air and under the condition of constant temperature and pressure, be transported in a closed in space experimental apparatus, animal used as test or experiment material spread test experience, by this experiment, obtain valuable science data, countermeasure and correct conclusion, this equipment is in occupational health, military science, environmental protection, chemical material, breathe widespread use in the physicisms such as medical science.
For achieving the above object, the technical solution used in the present invention is to provide a kind of volatilization gas diffusion checkout equipment of accurate controlled concentration, wherein: comprise by computer-controlled accurate liquid charge pump and by switching control pilot and anticorrosion pipeline, the volatilization liquid suction in volatilization liquid sealing bottle being sent in liquid volatilizer, 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 a vertical strip pipe of placing, pipe periphery closely surrounds the volatilization steam jacket by computer control temperature, can to heat conduction pearl, heat by tube wall, air-flow can be passed through in the gap existing between heat conduction pearl, on heat conduction pearl, there is a tubule road arriving by switching control pilot and anticorrosion pipeline from accurate liquid charge pump turn and a fluid injection water dropper is installed through pipe wall downwards, pipe top flaring exit is connecting gas mixing pipe and is leading to fan diffuser one end, gas mixing pipe periphery is being wrapped transmission steam jacket and is being guaranteed can not be condensed in volatilization gas transmitting procedure, pipe bottom flaring exit is connecting cross-over valve, on the pipe sidewall of bottom, there is a fairlead to be connected to mixed airshed valve, volatile liquid is from the infiltration that faces down of heat conduction pearl, due to heating of volatilization steam jacket, heat conduction pearl makes volatilised liq distillation by heat transmission and mixes under drive and be transported to fan diffuser by gas mixing pipe at the air-flow 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 volatilization gas outwards diffusion circulation thus, there is a tapped circular hole hollow body top, be close to hollow body upper surface be provided with in the middle of also round-meshed diffusion steam jacket to fan diffuser, heat, the diffusion steam jacket upper surface of hollow body top can also be heated and make atomizing effect better atomizer simultaneously, fan diffuser another side connects pure tracheae and is connected to compressed pneumatic pump and can under computer control, adjusts the pure air flow that is input to concentration cabin and be used for the too high volatilization gas of dilute concentration to guarantee needed accurate concentration range, enter volatilization gas concentration cabin, not volatile unnecessary liquid flows into bottom and is flow to receiving flask or passed 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 from atomization air flow valve, to introduce the pipeline of the not volatile unnecessary liquid that pressurized air enters with transfer pipet pass when atomization tracheae arrives atomizer outlet crossing herein, when driving liquid to form two-phase flow aerosol under a gas high speed impact under venturi principle effect, spray downwards, because having external thread to be just in time arranged on fan diffuser hollow body top, atomizer front end has in a tapped circular hole, the diffusion steam jacket upper surface of hollow body top can also be heated and make atomizing effect better atomizer itself simultaneously, and the volatilization gas of atomization naturally mixes in fan diffuser uniform-flow downwards and goes out to be diffused in volatilization gas concentration cabin, 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 arranged on top discharge exhaust in constant pressure situation with the output constant voltage vent valve that is arranged on bottom when air inlet reaches a certain amount of, guarantee the low weight escaping gas diffusion of proportion even constant disperse circulation from top to bottom, be placed in the detection that the volatilization gas concentration detector of middle can maximum accuracy and reflect that at the average volatilization gas concentration value of concentration cabin whole interior, feeding back to computing machine carries out data processing, separately have the special pressurized air of drawing from compressed pneumatic pump by clean gas flow valve control inputs to fan diffuser being diffused in concentration cabin, volatilization gas concentration detector detects concentration and is transferred to computing machine, computing machine is controlled each valve as requested well, move liquid pump, accurately liquid charge pump, gas flow valve and steam jacket reach the result of the concentration of the inner volatilization gas of accurate control, whole control procedure can be by computer control and storage.
Effect of the present invention has been to provide a kind of volatilization gas diffusion checkout equipment of accurate controlled concentration, design and develop out a kind of more scientific, more robotization, the 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, by this complete equipment, can realize as requested distillation gasification forms the volatilization gas of accurate concentration and according to accurate ratio, mixes the stable and invariable continuous plenum system of rear maintenance with air and under the condition of constant temperature and pressure, be transported in a closed in space experimental apparatus, animal used as test or experiment material spread test experience, by this experiment, obtain valuable science data, countermeasure and correct conclusion, this equipment is in occupational health, military science, environmental protection, chemical material, breathe widespread use in the physicisms such as medical science.
Accompanying drawing explanation
Fig. 1 is the structural representation of present device
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, atomization 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
By reference to the accompanying drawings and embodiment the volatilization gas diffusion assay device structures of a kind of accurate controlled concentration of the present invention is illustrated.
As shown in Figure 1, the volatilization gas diffusion checkout equipment of a kind of accurate controlled concentration of the present invention, comprise that the accurate liquid charge pump 2 of being controlled by computing machine 14 is sent to the volatilization liquid suction in volatilization liquid sealing bottle 1 in liquid volatilizer 6 by 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 a vertical strip pipe of placing, pipe periphery closely surrounds the volatilization steam jacket 7 by computer control temperature, can to heat conduction pearl 8, heat by tube wall, air-flow can be passed through in the gap existing between heat conduction pearl 8, on heat conduction pearl 8, there is a tubule road arriving by switching control pilot 4 and anticorrosion pipeline 3 from accurate liquid charge pump 2 turn and a fluid injection water dropper 5 is installed through pipe wall downwards, pipe top flaring exit is connecting gas mixing pipe 20 and is leading to fan diffuser 17 one end, gas mixing pipe 20 peripheries are being wrapped transmission steam jacket 18 and are being guaranteed can not be condensed in volatilization gas transmitting procedure, pipe bottom flaring exit is connecting cross-over valve 9, on the pipe sidewall of bottom, there is a fairlead to be connected to mixed airshed valve 11, volatile liquid is from heat conduction pearl 8 infiltration that faces down, due to heating of volatilization steam jacket 7, heat conduction pearl 8 is transmitted heat under the air-flow mixing drive that makes volatilised liq distillation and control at mixed airshed valve 11 and is transported to fan diffuser 17 by gas mixing pipe 20, 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 volatilization gas outwards diffusion circulation thus, there is a tapped circular hole hollow body top, be close to hollow body upper surface be provided with in the middle of also round-meshed diffusion steam jacket 19 to fan diffuser, heat, diffusion steam jacket 19 upper surfaces of hollow body top can also be heated and make atomizing effect better atomizer 22 simultaneously, fan diffuser another side connects pure tracheae 24 and is connected to compressed pneumatic pump 27 and can under computing machine 14 is controlled, adjusts the pure air flow that is input to concentration cabin 28 and be used for the too high volatilization gas of dilute concentration to guarantee needed accurate concentration range, enter volatilization gas concentration cabin 28, not volatile unnecessary liquid flows into bottom and is flow to receiving flask 10 or through liquid collecting tube 12, moved liquid pump 13 and switching control pilot 4 is sent to atomizer 22 by cross-over valve 9 by cross-over valve 9, atomizer 22 is that its inner structure that metal material is made is that from atomization gas flow valve 25, to introduce the pipeline of the not volatile unnecessary liquid that pressurized air introduces with transfer pipet road 21 when atomization tracheae 23 arrives atomizer 22 and exports crossing herein, when driving liquid to form two-phase flow aerosol under a gas high speed impact under venturi principle effect, spray downwards, because having external thread to be just in time arranged on fan diffuser 17 hollow body tops, atomizer 22 front ends have in a tapped circular hole, diffusion steam jacket 19 upper surfaces of hollow body top can also itself be heated and make atomizing effect better atomizer 22 simultaneously, and the volatilization gas of atomization mixes at the interior downward uniform-flow of fan diffuser 17 to go out to be diffused in volatilization gas concentration cabin 28 naturally, 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 arranged on top discharge exhaust in constant pressure situation with the output constant voltage vent valve 29 that is arranged on bottom when air inlet reaches a certain amount of, guarantee the low weight escaping gas diffusion of proportion even constant disperse circulation from top to bottom, be placed in the detection that the volatilization gas concentration detector 16 of middle can maximum accuracy and reflect that at the concentration cabin average volatilization gas concentration value of 28 whole interior, feeding back to computing machine 14 carries out data processing, separately there is the special pressurized air of drawing from compressed pneumatic pump 27 to be diffused into again in concentration cabin 28 to fan diffuser 17 by pure gas flow valve 26 control inputs, 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, accurately liquid charge pump 2, gas flow valve and steam jacket reach the result of the concentration of the inner volatilization gas of accurate control, whole control procedure can be controlled and be stored by computing machine 14.
Embodiment:
The volatilization gas diffusion checkout equipment of a kind of accurate controlled concentration of use the present invention is ready in advance to do the volatile liquid of testing and searches relevant physical and chemical index while exposing experiment, for example biochemical temperature, ignition temperature, pressure etc., determining test parameters is input in 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, by airtight concentration cabin 28, connect each pipeline and element and open in advance computing machine 14, contactor, each steam jacket and compressed pneumatic pump 27, needed experiment volatile liquid is put into volatilization liquid sealing bottle 1 after temperature and source of the gas reach requirement and be 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 pearl 8 in influent volatilizer 6 permeate from top to bottom, the pressurized air that compressed pneumatic pump 27 provides is controlled flow mixed airshed valve 11 by computing machine 14 upwards flows into from liquid volatilizer 6 bottoms and drives because heat conduction pearl 8 is heated the escaping gas distilling and mixes upwards to flow and be incorporated into the interior arrival of gas mixing pipe 20 top that outside surrounds transmission steam jacket 18 from liquid volatilizer 6 tops and have in the fan diffuser 17 of diffusion steam jacket 19, by following aperture, spread downwards and flow in 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 the interior otherwise processed of receiving flask 10, also can control cross-over valve 9 by computing machine 14 connects and moves liquid pump 13 and by switching control pilot 4, enter into transfer pipet road 21 and arrive atomizer 22 through liquid collecting tube 12, under the pressure gas of controlling at atomizer flow valve 25 drives, through atomization tracheae 23, entering fan diffuser 17 spreads downwards by following aperture in inflow concentration cabin 28, the pure pressurized air that the pure gas flow valve 26 that computing machine 14 is controlled is inputted certain flow dilutes the escaping gas of mediation excessive concentration, in order to reach the object computing machine 14 of accurate controlled concentration, can control volatile liquid amount that accurate liquid charge pump 2 inputs accurately the gas flow of control inputs is interior to the airtight concentration cabin 28 of constant temperature and pressure simultaneously and just can achieve the goal, the volatilization gas concentration monitor 16 of laying in the concentration cabin 28 volatilization gas concentration numerical value in detectable concentration cabin 28 offer computing machine 14 and carry out record at any time, feedback, correction makes the volatilization gas concentration value in concentration cabin 28 more accurate, stable, after the test period that reliably continues to reach certain, when finishing smoothly, experiment operates by first closes compression air pump 27, computing machine 14 cuts out accurate liquid charge pump 2 automatically, 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, open concentration cabin 28 and take 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 accurate controlled concentration diffusion checkout equipment, it is characterized in that: this equipment comprises that the accurate liquid charge pump (2) of being controlled by computing machine (14) arrives fluid injection water dropper (5) by switching control pilot (4) and anticorrosion pipeline (3), the volatilization liquid suction of volatilizing in liquid sealing bottle (1) is sent to liquid volatilizer (6) inner from heat conduction pearl (8) infiltration that faces down, due to heating of volatilization steam jacket (7), heat conduction pearl (8) makes heat transmission volatilised liq distillation and by gas mixing pipe (20), be transported to fan diffuser (17) under the air-flow mixing of mixed airshed valve (11) control drives to enter volatilization gas concentration cabin (28), not volatile unnecessary liquid flows into bottom and is flow to receiving flask (10) or passed 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), the air-flow of controlling at atomization gas flow valve (25) is also atomised in volatilization gas concentration cabin (28) under driving, the pressurized air of drawing from compressed pneumatic pump (27) is diffused in 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), accurately liquid charge pump (2), gas flow valve and steam jacket reach the result of the concentration of the inner volatilization gas of accurate control, whole control procedure is stored by computing machine (14) or is printed at any time by printer (15).
2. the volatilization gas of accurate controlled concentration according to claim 1 diffusion 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 a vertical strip pipe of placing, pipe periphery closely surrounds the volatilization steam jacket (7) by computer control temperature, by tube wall, to heat conduction pearl (8), heat, air-flow is passed through in the gap existing between heat conduction pearl (8), on heat conduction pearl (8), there is a tubule road arriving by switching control pilot (4) and anticorrosion pipeline (3) from accurate liquid charge pump (2) turn and a fluid injection water dropper (5) is installed through pipe wall downwards, pipe top flaring exit is connecting gas mixing pipe (20) and is leading to fan diffuser (17) one end, gas mixing pipe (20) periphery is being wrapped transmission steam jacket (18) and is being guaranteed can not be condensed in volatilization gas transmitting procedure, pipe bottom flaring exit is connecting cross-over valve (9), on the pipe sidewall of bottom, there is a fairlead to be connected to mixed airshed valve (11).
3. the volatilization gas of accurate controlled concentration according to claim 1 diffusion 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 and guarantees volatilization gas outwards diffusion circulation thus, there is a tapped circular hole hollow body top, be close to hollow body upper surface be provided with in the middle of also round-meshed diffusion steam jacket (19) to fan diffuser, heat, diffusion steam jacket (19) upper surface of hollow body top is heated and is made atomizing effect better atomizer (22) simultaneously, fan diffuser (17) another side connects a pure tracheae (24), by pure gas flow valve (26), be connected to compressed pneumatic pump (27) adjusts the pure air flow that is input to concentration cabin (28) and is 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 diffusion checkout equipment, it is characterized in that: described atomizer (22) is that its inner structure that metal material is made is crossing herein with the pipeline of the not volatile unnecessary liquid of transfer pipet road (21) introducing when introducing pressurized air and arrive atomizer (22) outlet along atomization tracheae (23) from atomization gas flow valve (25), when driving liquid to form two-phase flow aerosol under a gas high speed impact under venturi principle effect, spray downwards, because having external thread to be just in time arranged on fan diffuser (17) hollow body top, atomizer (22) front end has in a tapped circular hole, diffusion steam jacket (19) upper surface of hollow body top also itself is heated and is made atomizing effect better atomizer (22) simultaneously, and the volatilization gas of atomization naturally mix fan diffuser (17) introversive lower outside all with spread outflow.
5. the volatilization gas of accurate controlled concentration according to claim 1 diffusion 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 arranged on the fan diffuser (17) on top, atomizer (22) and be arranged on bottom output constant voltage vent valve (29) when air inlet reaches a certain amount of, in constant pressure situation, discharge exhaust, guarantee the low weight escaping gas diffusion of proportion even constant disperse circulation from top to bottom, be placed in middle the maximum accuracy of volatilization gas concentration detector (16) detection and reflect that at concentration cabin (28) the average volatilization gas concentration value of whole interior, feeding back to computing machine carries out data processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281522.4A CN102788740B (en) | 2012-08-09 | 2012-08-09 | Volatile gas diffusion detecting equipment with accurate concentration control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281522.4A CN102788740B (en) | 2012-08-09 | 2012-08-09 | Volatile gas diffusion detecting equipment with accurate concentration control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102788740A CN102788740A (en) | 2012-11-21 |
| CN102788740B true CN102788740B (en) | 2014-04-16 |
Family
ID=47154206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210281522.4A Expired - Fee Related CN102788740B (en) | 2012-08-09 | 2012-08-09 | Volatile gas diffusion detecting equipment with accurate concentration control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788740B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103698114A (en) * | 2013-12-06 | 2014-04-02 | 广东电网公司电力科学研究院 | Performance detection method and device of spray device |
| CN104865166B (en) * | 2015-06-19 | 2017-05-24 | 天津开发区合普工贸有限公司 | Calibration device for realizing accurately quantified dust material diffusion test |
| CN106323816A (en) * | 2016-08-12 | 2017-01-11 | 安徽中杰信息科技有限公司 | Volatile gas diffusion efficiency detection method |
| CN106423624A (en) * | 2016-12-02 | 2017-02-22 | 天津开发区合普工贸有限公司 | Grease viscous liquid high-efficiency atomization device |
| CN106596902B (en) * | 2017-01-20 | 2023-01-20 | 上海海关工业品与原材料检测技术中心 | Portable full-automatic petroleum product hydrogen sulfide tester |
| CN108051269B (en) * | 2017-12-28 | 2020-04-28 | 浙江大学台州研究院 | Liquid concentration measuring device and method based on atomization device |
| CN110218645A (en) * | 2019-05-29 | 2019-09-10 | 北京市医疗器械检验所 | Control system for Biohazard Safety Equipment detector |
| CN111569312A (en) * | 2020-04-21 | 2020-08-25 | 杨根喜 | Constant-pressure spraying and mixing method and device for solid fire extinguishing composition |
| CN114942305B (en) * | 2022-06-02 | 2024-04-16 | 海安铨成金属制品科技有限公司 | Device for detecting concentration of mixed solution containing volatile toxic liquid |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1616144A (en) * | 2003-11-12 | 2005-05-18 | 长春市绿园区汽车城丰盛园艺厂 | Device for producing stable flow speed gas |
| CN101357305B (en) * | 2008-09-02 | 2010-08-18 | 浙江大学 | Preparation device and method of low-concentration gas of certain humidity |
| JP5419276B2 (en) * | 2009-12-24 | 2014-02-19 | 株式会社堀場製作所 | Material gas concentration control system and program for material gas concentration control system |
| CN102010818A (en) * | 2010-10-28 | 2011-04-13 | 天津开发区合普工贸有限公司 | Control device of cell exposing gas with controllable concentration |
| CN202793969U (en) * | 2012-08-09 | 2013-03-13 | 天津开发区合普工贸有限公司 | Volatile gas diffusion detecting equipment for accurately controlling concentration |
-
2012
- 2012-08-09 CN CN201210281522.4A patent/CN102788740B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102788740A (en) | 2012-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102788740B (en) | Volatile gas diffusion detecting equipment with accurate concentration control | |
| CN202793969U (en) | Volatile gas diffusion detecting equipment for accurately controlling concentration | |
| CN102773031B (en) | Ultra-micro small-particle size aerosol generating equipment capable of accurately controlling concentration | |
| US6932502B2 (en) | Mixing apparatus | |
| CN105647789B (en) | A kind of products of cellular metabolism real-time detection apparatus based on micro-fluidic chip | |
| CN102586097B (en) | Device of continuously testing indoor soil microbial respiration | |
| CN202778307U (en) | Concentration-precisely-controlled ultra-small-grain-diameter aerosol generation equipment | |
| CN110343604A (en) | A kind of residual detection chip of micro-fluidic agriculture and application | |
| CN208447842U (en) | A kind of breath exposure device and breath exposure system for respiratory administration | |
| CN206519046U (en) | A kind of use liquid standard substance prepares the device of calibrating gas | |
| CN105381903B (en) | A kind of pneumatic fine liquid drop spray spot sample device | |
| CN203988482U (en) | Many concentration of combination type animal mouth and nose suck exposure system | |
| CN107389514B (en) | Atmospheric haze acquisition, analysis and release device | |
| CN107576005A (en) | A kind of air cleaning system | |
| CN105092786A (en) | Oppositely-impacting quantitative atomization drug delivery apparatus | |
| CN104345122A (en) | Integrated experiment platform for evaluating chemical contamination biological effect in outdoor air | |
| CN208860661U (en) | A kind of portable gas pollutant dilution device | |
| CN105278568B (en) | A kind of hysteresis quality concentration of formaldehyde autocontrol method | |
| Khedkar et al. | Experimental and numerical investigation of Cross-Flow nebulizer for developing optimized suction pressure | |
| CN207964763U (en) | A kind of certainty ratio cycle toxicity contaminated system | |
| CN203432981U (en) | Multi-concentration animal oral-nasal inhalation dynamic exposure equipment | |
| CN208406890U (en) | Fixed proportion diluter | |
| CN106345546B (en) | A kind of quick preparation method of instructions phenolphthalein solution | |
| CN207096109U (en) | Using the tidal air Volatile Organic Components automatic detection device of optical camera | |
| CN206593923U (en) | Volatile materials is sampled/sampling device automatically |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 300110 Tianjin city Nankai District Weishui road win atlas building 2-602 Applicant after: Tianjin Development Zone Hepu Industry and Trade Co., Ltd. Address before: 300020 Xinjiang Road, Heping District, Tianjin, No. 9 Applicant before: Tianjin Development Zone Hepu Industry and Trade Co., Ltd. |
|
| 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: 20140416 Termination date: 20170809 |