CN2929671Y - Injection gravimetric method gas distribution device - Google Patents
Injection gravimetric method gas distribution device Download PDFInfo
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- CN2929671Y CN2929671Y CN 200620122778 CN200620122778U CN2929671Y CN 2929671 Y CN2929671 Y CN 2929671Y CN 200620122778 CN200620122778 CN 200620122778 CN 200620122778 U CN200620122778 U CN 200620122778U CN 2929671 Y CN2929671 Y CN 2929671Y
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Abstract
An injecting weight method gas distribution device comprises a turbine pump vacuum group, an ionization vacuum gauge, a manometer, a gas system, a liquid VOCs injecting system and a cylinder connector, wherein a gas distribution tank for a liquid sample with the manometer is equipped on the non-corrosive steel temperature controlling heating jacket, the gas distribution tank for a liquid sample with the manometer is connected with a needle valve, the needle valve is connected with a digital vacuum gauge and a digital manometer, a temperature controlling heating belt winds one side of cable lines and is connected on an injecting system, the other side is connected on a gas distribution cylinder, the gas distribution cylinder is equipped on an electric scale, the distribution cabinet is equipped with an equipping and exhausting switch valve, a vacuum pump controlling valve and a power switch. The utility model has the advantages that the filling of component gas and diluted gas are separated with each other which avoids the staining between each other, simplifies the air passage, decreases the mouthpieces and ensures the gas sealing performance of the system, and that the gas distribution device successfully designs a high temperature resistant ejecting and heating volatilizing system which makes a first gas distribution pressure increases by 30 atmospheres compared with international similar level.
Description
Technical field
The utility model relates to injection gravimetric method air distributing device, belongs to preparation of volatile organic matter (VOCs) standard mixture and gas measurement technology application.
Background technology
The component gas that is gaseous state under inert gas or the normal temperature, usually be easy to the bottled gas standard material of gravimetric method preparation high pressure, develop component (being generally volatile organic matter VOCs) the steel cylinder dress gas standard material that is in a liquid state under the normal temperature, must solve following problem: (1) liquid composition has stronger absorption at the steel cylinder inwall usually; (2) how liquid composition accurately adds steel cylinder; (3) how liquid composition gasifies to reduce absorption; At present, the VOCs gravimetric method distribution technology that America NI ST (USA National Institute of Standard and Technology) is adopted is: steel cylinder is stand-by through vacuumizing after the special processing, VOCs is enclosed in the kapillary, drive air and centrifugal enrichment away at kapillary one end, after weighing, link to each other with steel cylinder, with pure kapillary one end of pincers card by teflon pipe, VOCs is sucked in the steel cylinder, heat with hair dryer.Britain NPL (national physical study institute) the VOCs gravimetric method distribution technology that adopts is: steel cylinder is stand-by through vacuumizing after the special processing, with the glass evacuated gas distributing system of VOCs heated volatile to, this vacuum gas distributing system design has the temperature and pressure determinator, one spherical fixed volume (about 3 liters) glass container sampler is arranged in the vacuum system, behind the glass container quantitative sampling, link to each other with steel cylinder, open the glass valve by teflon pipe, VOCs is sucked in the steel cylinder, also heat with hair dryer.Japan's AIST (Nippon Standard technical college) VOCs gravimetric method distribution technology that adopts is: VOCs is packed in the small steel cylinder, be connected with the distribution steel cylinder, after vacuumizing, open the small steel cylinder valve, VOCs is sucked in the distribution steel cylinder, and the VOCs addition can draw by the weight of weighing small steel cylinder.The external VOCs gravimetric method distribution technology that adopts, all that steel cylinder is stand-by through vacuumizing after the special processing, also will be with glass container or kapillary or small steel cylinder container etc., more complicated is not easy quantitative preparation, and the impermeability of system and withstand voltage properties are bad etc.
Summary of the invention
The purpose of this utility model is to provide injection gravimetric method air distributing device, in order to overcome the problem that occurs in the development of above-mentioned volatile organic matter VOCs steel cylinder dress gas standard material, design special heated injection gas distributing system, guarantee the impermeability of injecting systems and VOCs is volatilized fully, have quantitative preparation function and injecting systems high pressure resistant (120 atmospheric pressure) performance.
The technical solution adopted in the utility model is: injection gravimetric method air distributing device comprises molecule turbopump vacuum group, ion gauge, tensimeter, air-channel system, liquid VOCs injecting systems, the steel cylinder web member, band pressure gauge holding liquid sample ligand gas tank is contained on the stainless steel temperature control heating jacket, band pressure gauge holding liquid sample ligand gas tank is connected with needle-valve, needle-valve is connected with digital pressure gauge with distribution digital vacuum meter cashier's office in a shop, the temperature control heating tape is twined cable and is connected on the injecting systems on one side, another side is connected on the distribution steel cylinder, the distribution steel cylinder is placed on the electronic balance, and above-mentioned distribution cashier's office in a shop is equipped with and is filled and the emptying controlled valve, vacuum pump by-pass valve control and power switch; Air-channel system is made up of high pressure, middle pressure and low-voltage vacuum system three parts, and it is high pressure resistant to be 120 atmospheric pressure.
The utility model has the advantages that charging of component gas and diluents is independently of one another, avoid mutual contamination, simplify gas circuit, reduce interface, guarantee the air-tightness of system.
Description of drawings
Fig. 1 is the utility model injection gravimetric method air distributing device structural representation.
Among the figure, 1, band pressure gauge holding liquid sample ligand gas tank or steel cylinder gas, 2, stainless steel temperature control heating jacket, 3, needle-valve or stop valve, 4, digital vacuum meter, 5, digital pressure gauge, 6, injection gas distributing system, 7, cable is twined in temperature control heating, and 8, desire the distribution steel cylinder, 9, electronic balance, 10, distribution cabinet, 11, fill and the emptying controlled valve 12, the vacuum pump by-pass valve control, 13, power switch.
Embodiment
Among Fig. 1, injection gravimetric method air distributing device comprises molecule turbo vacuum group, ion gauge, tensimeter, air-channel system, liquid VOCs injecting systems, steel cylinder web member, band pressure gauge holding liquid sample ligand gas tank 1 is contained on the stainless steel temperature control heating jacket 2, stainless steel temperature control heating jacket 2, can heat, also can contain cold-producing mediums such as liquid nitrogen; Band pressure gauge holding liquid sample ligand gas tank 1 is connected with needle-valve 3, (0～150atm) is connected digital vacuum meter 4 on needle-valve 3 and the distribution cabinet 10 with digital pressure gauge 5, the temperature control heating is twined cable 7 and is connected on one side on the injection gas distributing system 6, another side is connected on to be desired on the distribution steel cylinder 8, desiring distribution steel cylinder 8 is placed on electronic balance 9 and (on 15～20kg), is equipped with on the above-mentioned distribution cabinet 1O (band molecule turbopump) and fills and emptying controlled valve 11, vacuum pump by-pass valve control 12 and power switch 13; Air-channel system is made up of high pressure, middle pressure and low-voltage vacuum system three parts, and it is high pressure resistant to be 120 atmospheric pressure.
Charging into a certain amount of gas front and back difference weighing container of concentration known, the quality of the gas composition that is charged into is determined by the difference of twice weighing reading, charges into different component gas successively, thereby obtains a kind of mixed gas.The adding of liquid VOC component joins in the steel cylinder by the injection port (or evaporator) of particular design, and addition obtains by the weight before and after the injection (evaporation) of weighing syringe (or evaporator).
Ultimate principle: will desire the dispense liquid component by syringe (or evaporator) and inject steel cylinder, injection rate IR obtains by the quality before and after weighing syringe (or evaporator) injection (evaporation).
This air distributing device is made up of molecule turbo vacuum unit, ion gauge, tensimeter, air-channel system, liquid VOCs injecting systems, steel cylinder web member; Air-channel system is made up of high pressure, middle pressure and low-voltage vacuum system three parts, make charging of component gas and diluents independently of one another, avoid mutual contamination, adopt well behaved imported valve, tensimeter and vacuum meter, simplify gas circuit as far as possible, reduce interface to guarantee the air-tightness of system, the gas cylinder web member that adopts particular design is to reduce wear; This project has successfully designed high pressure resistant injection device on reference successful foreign experiential basis, make once the international similar level of gas distribution pressure ratio improve 30 atmospheric pressure.
Claims (2)
1, injection gravimetric method air distributing device comprises molecule turbo vacuum unit, ion gauge, tensimeter, air-channel system, liquid VOCs injecting systems, steel cylinder web member, it is characterized in that:
Band pressure gauge holding liquid sample ligand gas tank (1) is contained on the stainless steel temperature control heating jacket (2), band pressure gauge holding liquid sample ligand gas tank (1) is connected with needle-valve (3), needle-valve (3) is connected with digital pressure gauge (5) with digital vacuum meter (4) on the distribution cabinet (10), the temperature control heating is twined cable (7) and is connected on the injection gas distributing system (6) on one side, another side is connected on the distribution steel cylinder (8), distribution steel cylinder (8) is placed on the electronic balance (9), is equipped with on the above-mentioned distribution cabinet (10) to fill and emptying controlled valve (11), vacuum pump by-pass valve control (12) and power switch (13).
2, according to the injection gravimetric method air distributing device of claim 1, it is characterized in that:
Described injection gas distributing system (6) is made up of high pressure, middle pressure and low-voltage vacuum system three parts, and it is high pressure resistant to be 120 atmospheric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122778 CN2929671Y (en) | 2006-07-27 | 2006-07-27 | Injection gravimetric method gas distribution device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620122778 CN2929671Y (en) | 2006-07-27 | 2006-07-27 | Injection gravimetric method gas distribution device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929671Y true CN2929671Y (en) | 2007-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200620122778 Expired - Fee Related CN2929671Y (en) | 2006-07-27 | 2006-07-27 | Injection gravimetric method gas distribution device |
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| CN (1) | CN2929671Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470021B (en) * | 2007-12-29 | 2010-12-15 | 清华大学 | Temperature-pressure method for hydrogen gas consumption measurement |
| CN101470020B (en) * | 2007-12-25 | 2011-06-29 | 清华大学 | Detection system and method for mesomeric state hydrogen gas consumption |
| CN102539202A (en) * | 2010-12-30 | 2012-07-04 | 深圳光启高等理工研究院 | Preparation method for ethyl nitrite standard gas |
| CN102580590A (en) * | 2012-03-01 | 2012-07-18 | 中国计量科学研究院 | Micro transfer system for producing gas standard materials and micro transfer method |
| CN103528750A (en) * | 2012-07-02 | 2014-01-22 | 中国计量科学研究院 | Liquid manometer |
| CN104324669A (en) * | 2014-03-20 | 2015-02-04 | 中国计量科学研究院 | System and method for making liquid into gas standard substance |
| CN104525010A (en) * | 2014-12-29 | 2015-04-22 | 中国计量科学研究院 | Standard mixed gas preparation device |
| CN107715712A (en) * | 2017-11-10 | 2018-02-23 | 重庆大学 | The distribution experimental system and its air distributing method of a kind of low concentration VOCs gases |
| CN107744731A (en) * | 2017-11-22 | 2018-03-02 | 安徽理工大学 | A kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust |
| CN109708943A (en) * | 2019-02-28 | 2019-05-03 | 山东非金属材料研究所 | The preparation method of bromo-trichloromethane gas reference material in a kind of nitrogen |
| 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 |
| CN112361679A (en) * | 2020-11-04 | 2021-02-12 | 渤海造船厂集团有限公司 | Marine device and method for filling refrigerant in batches |
-
2006
- 2006-07-27 CN CN 200620122778 patent/CN2929671Y/en not_active Expired - Fee Related
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470020B (en) * | 2007-12-25 | 2011-06-29 | 清华大学 | Detection system and method for mesomeric state hydrogen gas consumption |
| CN101470021B (en) * | 2007-12-29 | 2010-12-15 | 清华大学 | Temperature-pressure method for hydrogen gas consumption measurement |
| CN102539202A (en) * | 2010-12-30 | 2012-07-04 | 深圳光启高等理工研究院 | Preparation method for ethyl nitrite standard gas |
| CN102539202B (en) * | 2010-12-30 | 2014-12-24 | 深圳光启高等理工研究院 | Preparation method for ethyl nitrite standard gas |
| CN102580590A (en) * | 2012-03-01 | 2012-07-18 | 中国计量科学研究院 | Micro transfer system for producing gas standard materials and micro transfer method |
| CN102580590B (en) * | 2012-03-01 | 2014-10-01 | 中国计量科学研究院 | Micro transfer system for producing gas standard materials and micro transfer method |
| CN103528750A (en) * | 2012-07-02 | 2014-01-22 | 中国计量科学研究院 | Liquid manometer |
| CN103528750B (en) * | 2012-07-02 | 2016-02-03 | 中国计量科学研究院 | A kind of liquid manometer |
| CN104324669B (en) * | 2014-03-20 | 2016-04-13 | 中国计量科学研究院 | A kind of system and method liquid being prepared as gas reference material |
| CN104324669A (en) * | 2014-03-20 | 2015-02-04 | 中国计量科学研究院 | System and method for making liquid into gas standard substance |
| CN104525010A (en) * | 2014-12-29 | 2015-04-22 | 中国计量科学研究院 | Standard mixed gas preparation device |
| CN107715712A (en) * | 2017-11-10 | 2018-02-23 | 重庆大学 | The distribution experimental system and its air distributing method of a kind of low concentration VOCs gases |
| CN107715712B (en) * | 2017-11-10 | 2020-08-04 | 重庆大学 | Gas distribution experimental system and gas distribution method for low-concentration VOCs gas |
| CN107744731A (en) * | 2017-11-22 | 2018-03-02 | 安徽理工大学 | A kind of air distributing device that experiment is fired for fuel gas, liquid vapour and dust |
| CN109708943A (en) * | 2019-02-28 | 2019-05-03 | 山东非金属材料研究所 | The preparation method of bromo-trichloromethane gas reference material in a kind of nitrogen |
| 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 |
| CN112361679A (en) * | 2020-11-04 | 2021-02-12 | 渤海造船厂集团有限公司 | Marine device and method for filling refrigerant in batches |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 |