CN206519046U - A kind of use liquid standard substance prepares the device of calibrating gas - Google Patents
A kind of use liquid standard substance prepares the device of calibrating gas Download PDFInfo
- Publication number
- CN206519046U CN206519046U CN201720184801.7U CN201720184801U CN206519046U CN 206519046 U CN206519046 U CN 206519046U CN 201720184801 U CN201720184801 U CN 201720184801U CN 206519046 U CN206519046 U CN 206519046U
- Authority
- CN
- China
- Prior art keywords
- gas
- standard substance
- mixer chamber
- liquid standard
- prepares
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 38
- 239000000126 substance Substances 0.000 title claims abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 67
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000889 atomisation Methods 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000011084 recovery Methods 0.000 claims abstract description 8
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 7
- 238000003860 storage Methods 0.000 claims abstract description 6
- 230000026683 transduction Effects 0.000 claims abstract description 5
- 238000010361 transduction Methods 0.000 claims abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 12
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000000741 silica gel Substances 0.000 claims description 7
- 229910002027 silica gel Inorganic materials 0.000 claims description 7
- 229910052724 xenon Inorganic materials 0.000 claims description 6
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000004611 spectroscopical analysis Methods 0.000 claims description 2
- 239000010421 standard material Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 238000004847 absorption spectroscopy Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000003708 ampul Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 239000003905 agrochemical Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000004164 analytical calibration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
A kind of use liquid standard substance prepares the device of calibrating gas, including material system, atomization system, detecting system and waste liquid recovery apparatus.The material system includes source nitrogen, gas flow controller, liquid standard substance storage tank and peristaltic pump；The atomization system includes atomizer, gas mixer chamber, heater and screen pack, and the atomizer is ultrasonic transduction piece, and the molecule of drop state is broken up into atomization using the higher-order of oscillation of ultrasonic transduction piece；The gas mixer chamber is frustum cone structure；The detecting system uses ultraviolet difference absorption spectroscopy techniques.The utility model is simple in construction, easy to operate, can realize that liquid becomes the operation of gas, the calibrating gas of respective concentration can be prepared as needed.
Description
Technical field
The utility model is related to the preparation facilities of calibrating gas, particularly a kind of to prepare Standard Gases using liquid standard substance
The device of body.
Background technology
The preparation of the calibrating gas of liquid mainly has following two methods under normal temperature：Weight method and diffusion method.Weigh
Method mainly employs small ampoule bottle.By the processing to small ampoule bottle and weigh, the standard mixed liquor of fixed mass is sucked and pacified
In small jar bottle, ampoule bottle is placed in in gas cylinder, to carrying out Negative pressure with gas cylinder, and the shatter liquid for making it internal of ampoule bottle is waved
Hair, so as to obtain calibrating gas.The advantage of this method is the calibrating gas that can obtain Exact concentrations, and shortcoming, which is to prepare, to be had
The calibrating gas preparation of the material and low concentration of volatile liquid is difficult.Diffusion method is according to volatile liquid under certain temperature
Diffusion in diffusion vial, by the purging dilution of zero gas so as to obtain calibrating gas.This method is relied primarily on necessarily
At a temperature of liquid automatic volatilization, it is therefore inapplicable to difficult volatilised liq, and the error due to diffusion vial in itself, the mark obtained by preparation
Quasi- gas concentration has relatively large deviation.
BTEX (benzene, toluene, ethylo benzene, neighbour// paraxylene) belong to mononuclear aromatics class matter, the mixing of normal temperature subordinate liquid phase
Thing.As industrial chemicals, BTEX is widely used in the manufacturing industry such as agricultural chemicals, plastics and synthetic fibers.Producing, storing and transporting
Cheng Zhong, BTEX are easily discharged into environment, cause environmental pollution, and constitute harm to the ecosystem and health.BTEX is
The chief component of volatile organic matter (VOCs), its content is the important indicator for characterizing air pollution.BTEX calibrating gas
As one kind of environmental protection standard gas, applied to product quality supervision and quality control, the calibration of instrument and meter, atmospheric environment prison
The fields such as survey, the evaluation of analysis method.Either (online) analysis of lab analysis or scene, has been required for a large amount of high-quality
Calibrating gas.Therefore in the industry in the urgent need to a kind of device for the BTEX standard mixtures that can accurately prepare series concentration.
Utility model content
The defect that the utility model is used to solve prior art prepares calibrating gas there is provided one kind using liquid standard substance
Device.The standard substance that described device realizes liquid condition is converted into the standard substance of gaseous state, can either ensure compared with
High accuracy, can provide wider concentration range again.
The technical scheme in the invention for solving the above technical problem is as follows：
A kind of use liquid standard substance prepares the device of calibrating gas, including material system and atomization system, the thing
Material system includes source nitrogen, gas flow controller, liquid standard substance storage tank and peristaltic pump, the gas flow controller
Input is connected by PTFE tube with source nitrogen, and output end is connected by PTFE tube with the arrival end of gas mixer chamber, described compacted
The input of dynamic pump passes through silica gel hose and liquid standard substance storage tank UNICOM, output end connection atomizer；The atomization system
Including atomizer and gas mixer chamber, the atomizer be ultrasonic transduction piece, the atomizer entrance by silica gel hose with it is compacted
Dong Beng UNICOMs, outlet is by the side UNICOM of PTFE tube and gas mixer chamber, and the gas mixer chamber is frustum cone structure.
This device includes detecting system, and the detecting system includes high pressure xenon lamp, absorption cell, data collecting system and PC numbers
According to processing system；Mixed gas in the light irradiation absorption cell that the high pressure xenon lamp is sent, the data collecting system will be gathered
To spectroscopic data be transferred to PC data handling systems.
Heater is set up, the heater is wrapped in outside gas mixing room using heating tape.
Screen pack is set up, the input of the screen pack is connected by PTFE tube with gas mixing chamber outlet end, output end
It is connected by PTFE tube with the absorption cell outside housing.
Waste liquid recovery apparatus is set up, the waste liquid recovery apparatus is placed in outside housing, the arrival end lower edge with gas mixer chamber
Connected by silica gel hose.
The utility model has the advantages that：
Fluid molecule under liquid condition is broken up atomization by the utility model using supersonic oscillations, and auxiliary heating can be more
Plus it is fully vaporization, realize liquid standard substance and be changed into calibrating gas；The method can be mixed by reconciling nitrogen and standard
The flow configuration of liquid, prepares the calibrating gas of series of preset concentration；Mixed gas is detected using ultraviolet difference absorption spectroscopy techniques,
It is easy to operate, it is cheap；Waste liquid recovery apparatus is set under gas mixer chamber, the recycling of mixed liquor can be achieved, with
Reach the purpose of economical environment-protective.The utility model is simple in construction, easy to operate, can expand and realize that many liquid standard materials turn
It is changed into the operation of calibrating gas.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Each label is expressed as in figure：
1st, source nitrogen；2nd, PTFE tube；3rd, gas flow controller；4th, liquid standard substance storage tank；5th, silica gel hose；6th, it is compacted
Dynamic pump；7th, atomizer；8th, gas mixer chamber；9th, heater；10th, screen pack；11st, high pressure xenon lamp；12nd, absorption cell；13rd, waste gas
Outflow end；14th, data collecting system；15th, PC data handling systems；16th, waste liquid recovery apparatus；17th, housing；18th, gas is exported.
Embodiment
With reference to Fig. 1, the utility model includes material system, atomization system, detecting system and waste liquid recovery apparatus, specific stream
Journey is as described below.
Experiment flow is divided into two-way progress, and nitrogen is inert gas all the way, and its flow velocity is controlled by gas flow controller (3)
System.Another road is BTEX standard mixed liquors, is drawn into atomizer (7) by peristaltic pump (6), utilizes the high frequency of ultrasonic transduction piece
BTEX standard mixed liquors are broken up atomization by vibration so that standard liquid is changed into fine droplet.Nitrogen is with the droplet after atomization in gas
Mixed in body mixing chamber (8).Gas mixer chamber is truncated cone-shaped, by ansys flow dynamics analysis, and the structure ensure that gas is mixed
The swirling flow for closing indoor generation enables to gas sufficiently to mix, and ensure that mixed gas can smoothly flow out.Parcel
Heating tape is used in the heater (9) of gas mixer chamber (8) outside, temperature is promoted to the state of liquid gasification by electrified regulation,
This heater (9) controls to heat by ambient temperature control module, the electrified regulation in setting range, outside design temperature scope
Power-off, it controls temperature error scope at ± 4 DEG C.By the purging of another road nitrogen, mixed gas is set to enter screen pack
(10) filtering and impurity removing is carried out, output end is passed into absorption cell (12) by PTFE tube, under the irradiation of high pressure xenon lamp (11), it is fixed
Mixed gas in wave band absorbs part light intensity, and this change is gathered by data collecting system (14) and transfers data to PC numbers
According to processing system (15), the concentration of the BTEX standard mixture that draws preparation is handled data progress by MATLAB.And lead to
The flow set of adjustment gas flow controller (3) and peristaltic pump (6) is crossed, and then adjusts gas flow and fluid flow, with reality
Now prepare the BTEX standard mixtures of series concentration.
Claims (5)
1. a kind of use liquid standard substance prepares the device of calibrating gas, it is characterised in that：It is including material system and atomization
System, the material system includes source nitrogen (1), gas flow controller (2), liquid standard substance storage tank (4) and peristaltic pump
(6), the input of the gas flow controller (3) is connected by PTFE tube (2) with source nitrogen (1), and output end passes through PTFE
Pipe is connected with the arrival end of gas mixer chamber (8), and the input of the peristaltic pump (6) passes through silica gel hose (5) and liquid standard
Material storage tank (4) UNICOM, output end connection atomizer (7)；The atomization system includes atomizer (7) and gas mixer chamber (8),
The atomizer (7) is ultrasonic transduction piece, and atomizer (7) entrance is by silica gel hose and peristaltic pump (6) UNICOM, and outlet is logical
The side UNICOM of PTFE tube and gas mixer chamber (8) is crossed, the gas mixer chamber (8) is frustum cone structure.
2. a kind of use liquid standard substance according to claim 1 prepares the device of calibrating gas, it is characterised in that：Bag
Detecting system is included, the detecting system is included at high pressure xenon lamp (11), absorption cell (12), data collecting system (14) and PC data
Reason system (15)；Mixed gas in the light irradiation absorption cell (12) that the high pressure xenon lamp (11) sends, the data acquisition system
The spectroscopic data collected is transferred to PC data handling systems (15) by system (14).
3. a kind of use liquid standard substance according to claim 2 prepares the device of calibrating gas, it is characterised in that：Increase
If heater (9), the heater (9) is wrapped in gas mixer chamber (8) outside using heating tape.
4. a kind of use liquid standard substance according to claim 3 prepares the device of calibrating gas, it is characterised in that：Increase
If screen pack (10), the input of the screen pack (10) is connected by PTFE tube with gas mixer chamber (8) port of export, output end
Absorption cell (12) by PTFE tube with housing (17) outside is connected.
5. a kind of use liquid standard substance according to claim 4 prepares the device of calibrating gas, it is characterised in that：Increase
If waste liquid recovery apparatus (16), the waste liquid recovery apparatus (16) is placed in housing (17) outside, the arrival end with gas mixer chamber (8)
Lower edge is connected by silica gel hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720184801.7U CN206519046U (en) | 2017-02-28 | 2017-02-28 | A kind of use liquid standard substance prepares the device of calibrating gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720184801.7U CN206519046U (en) | 2017-02-28 | 2017-02-28 | A kind of use liquid standard substance prepares the device of calibrating gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206519046U true CN206519046U (en) | 2017-09-26 |
Family
ID=59893269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720184801.7U Expired - Fee Related CN206519046U (en) | 2017-02-28 | 2017-02-28 | A kind of use liquid standard substance prepares the device of calibrating gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206519046U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593848A (en) * | 2018-04-25 | 2018-09-28 | 清华大学深圳研究生院 | A kind of normal concentration sample gas generation device and production method |
| CN109884218A (en) * | 2019-04-12 | 2019-06-14 | 山东非金属材料研究所 | The preparation facilities and method of arsine gas standard substance in a kind of nitrogen |
| CN114184446A (en) * | 2021-12-21 | 2022-03-15 | 中国计量科学研究院 | Volatile organic gas standard substance preparation system capable of weighing on line |
| CN114993926A (en) * | 2022-07-19 | 2022-09-02 | 中国电器科学研究院股份有限公司 | Novel salt spray environment test system and method |
-
2017
- 2017-02-28 CN CN201720184801.7U patent/CN206519046U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593848A (en) * | 2018-04-25 | 2018-09-28 | 清华大学深圳研究生院 | A kind of normal concentration sample gas generation device and production method |
| CN109884218A (en) * | 2019-04-12 | 2019-06-14 | 山东非金属材料研究所 | The preparation facilities and method of arsine gas standard substance in a kind of nitrogen |
| CN114184446A (en) * | 2021-12-21 | 2022-03-15 | 中国计量科学研究院 | Volatile organic gas standard substance preparation system capable of weighing on line |
| CN114993926A (en) * | 2022-07-19 | 2022-09-02 | 中国电器科学研究院股份有限公司 | Novel salt spray environment test system and method |
| CN114993926B (en) * | 2022-07-19 | 2022-12-20 | 中国电器科学研究院股份有限公司 | Novel salt spray environment test system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206519046U (en) | A kind of use liquid standard substance prepares the device of calibrating gas | |
| CN100395533C (en) | Diluting and sampling system for particle from fixed combustion source emission | |
| CN104267154B (en) | Gas analyser calibrating installation | |
| CN103091134A (en) | Dilution sampling system and sampling method of fixed source particles and volatile organic compounds | |
| CN107153106A (en) | A kind of dynamic dilution gas calibration device | |
| US20200232953A1 (en) | Pollutant generation system and monitoring system for wind tunnel tests | |
| CN208537335U (en) | A kind of multi-functional thermogravimetric analyzer | |
| CN102614803A (en) | Dynamic generator for multicomponent low-concentration standard gas | |
| WO2004102179A1 (en) | Equipment and method for collecting trace substances in the air | |
| CN108037115A (en) | A kind of sulfur dioxide detecting system and detection method | |
| CN204619953U (en) | Photo catalysis reactor and gas-phase photocatalysis reaction test system | |
| CN204086080U (en) | Minute solid particles gasoloid high precision steady caliberating device | |
| AU753085B3 (en) | Assembly and method for mixing gases | |
| CN208786188U (en) | A kind of dust generating system | |
| CN104374928A (en) | Multi-concentration animal oral-nasal inhalation dynamic exposure equipment | |
| CN103018146A (en) | PM2.5 monitor with aerosol humidity controller | |
| CN204314268U (en) | Gas analyzer calibrating installation | |
| CN206695981U (en) | Filter test system | |
| CN203519457U (en) | Material specific gravity detection device and material specific gravity detection system comprising same | |
| CN208860661U (en) | A kind of portable gas pollutant dilution device | |
| CN208239374U (en) | Circulation is without gradient reaction experiment system in normal pressure | |
| CN210474020U (en) | Atmosphere simulation equipment | |
| CN208043661U (en) | A kind of gas-liquid separation waste discharge apparatus | |
| CN203521366U (en) | Homothermal dopant assembly device | |
| CN203432981U (en) | Multi-concentration animal oral-nasal inhalation dynamic exposure equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170926 |