CN203853061U - Full-automatic standard gas preparation device - Google Patents

Full-automatic standard gas preparation device Download PDF

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Publication number
CN203853061U
CN203853061U CN201420038863.3U CN201420038863U CN203853061U CN 203853061 U CN203853061 U CN 203853061U CN 201420038863 U CN201420038863 U CN 201420038863U CN 203853061 U CN203853061 U CN 203853061U
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China
Prior art keywords
standard gas
air pipe
magnetic valve
bottom air
pressure bottom
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CN201420038863.3U
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Chinese (zh)
Inventor
陈素红
于乃海
刘兴华
韩志骏
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Shandong Electric Power Co Ltd
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Shandong Electric Power Co Ltd
Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Shandong Electric Power Co Ltd, Zibo Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201420038863.3U priority Critical patent/CN203853061U/en
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Abstract

The utility model discloses a full-automatic standard gas preparation device which comprises a high-pressure bottom gas pipeline, a standard gas distribution bottle, a constant temperature room, a raw material gas pipeline and a vacuum pump, wherein a six-way valve and a quantitative pipe are arranged in the constant temperature room; the high-pressure bottom gas pipeline, the standard gas distribution bottle, the raw material gas pipeline, the quantitative pipe and the vacuum pump are connected with the six-way valve in parallel, and the high-pressure bottom gas pipeline is connected with the standard gas distribution bottle in series; a pressure sensor is arranged at the gas inlet end of the standard gas distribution bottle, and a mass flow meter is arranged on the raw material gas pipeline; the output ends of the pressure sensor and the mass flow meter are respectively connected with a computer in parallel; an electromagnetic valve is arranged on each of the high-pressure bottom gas pipeline and the raw material gas pipeline and controlled through the computer. As the standard gas distribution bottle adopts a cylinder and is matched with a linear motor, the gas tightness of the cylinder is good, the preparation content is accurate, and the preparation efficiency is high. Prepared standard gas is a first-level national standard material.

Description

Fully automatic standard gas preparation device
Technical field
The utility model relates to Electric automation technology field, especially a kind of fully automatic standard gas preparation device that adopts gravimetric method configuration standard gas.
Background technology
The effect of standard substance is to realize accurately consistent measurement, guarantees magnitude tracing; Calibrating gas is widely used in the fields such as evaluation of calibration, atmosphere environment supervision, health care, clinical examination and the analytical method of product quality supervision and quality control, instrument and meter, the preparation method of calibrating gas has multiple, as gravimetric method, static capacity method and dynamic diffusion denuder method etc., wherein wt Fa China is most widely used; Gravimetric method is to using quality as the absolute method of measurement of benchmark, has the high feature of the degree of accuracy, belongs to internationally recognized standard method; Traditional gravimetric method, the weighing of its component gas is the key of preparation standard gas, due to the quality of gas cylinder own large (being generally 2~20kg), and the component gas quality being filled with relatively little (2~20g) therefore requires very high to balance.Need to adopt the high-accuracy balance of large load (20kg), small sensible weight (10mg) to weigh the unstrpped gas of filling people's gas cylinder, with electronic balance [maximum load (16kg), sensibility reciprocal (0.1g)], weigh the high pressure spirit that is filled with gas cylinder; When adopting gravimetric method preparing calibrating gas, in order accurately to weigh the seldom gas of amount of institute's filling in the gas cylinder that quality is very large, except balance is had high requirements, also require to guarantee certain weighed amount; Due to the gas cylinder poor sealing of original use, efficiency is low, and component or the ratio effect of controlling preparation gas are poor, can not remote monitoring, and the whole layoutprocedure time is long.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides a kind of formulation content accurately and efficiency is high, operating efficiency is high and can realize the fully automatic standard gas preparation device of continuous preparation of the multicomponent calibrating gas of single air cylinder.
For achieving the above object, the utility model adopts following technical proposals: a kind of fully automatic standard gas preparation device, it comprises high-pressure bottom air pipe, standard gas distributing bottle, thermostatic chamber, unstripped gas pipeline and vavuum pump, in described thermostatic chamber, establish six-way valve and quantity tube, described high-pressure bottom air pipe, standard gas distributing bottle, unstripped gas pipeline, quantity tube and vavuum pump and six-way valve are connected in parallel, described high-pressure bottom air pipe and the series connection of standard gas distributing bottle, described standard gas distributing bottle inlet end is established pressure sensor, on described unstripped gas pipeline, establish mass flowmenter, the output of pressure sensor and mass flowmenter is connected in parallel with computer respectively, on described high-pressure bottom air pipe and unstripped gas pipeline, all establish magnetic valve, magnetic valve is by described computer control.
Further, the corresponding quantity tube two ends that connect of described six-way valve 86,85 valve ports.
Further, described six-way valve 81 valve ports are connected with high-pressure bottom air pipe, come to establish successively magnetic valve F1 and magnetic valve F2 on the high-pressure bottom air pipe of gas direction.
Further, the high-pressure bottom air pipe Shang She branch high-pressure bottom air pipe of section between described magnetic valve F1 and magnetic valve F2, the outlet side of branch's high-pressure bottom air pipe is connected with six-way valve 82 valve ports, comes to establish successively magnetic valve F3 and magnetic valve F4 on branch's high-pressure bottom air pipe of gas direction.
Further, between described magnetic valve F3 and magnetic valve F4, on the high-pressure bottom air pipe of section, set branch's high-pressure bottom air pipe, the outlet side of inferior division high-pressure bottom air pipe is connected with standard gas distributing bottle inlet end, both junctions are arranged in the below of standard gas distributing bottle piston, come to establish successively magnetic valve F5 and pressure sensor on the inferior division high-pressure bottom air pipe of gas direction.
Further, described six-way valve 84 valve ports are connected with vavuum pump, on the tracheae that both connect, establish magnetic valve F7.
Further, establish upper the high-pressure bottom air pipe containing magnetic valve F6 between described magnetic valve F3 and magnetic valve F4 on the high-pressure bottom air pipe of section, the outlet side of top set's high-pressure bottom air pipe is arranged on the tracheae between described magnetic valve F7 and vavuum pump.
Further, the outlet side of described unstripped gas pipeline is connected with six-way valve 83 valve ports, comes to establish successively mass flowmenter and magnetic valve F8 on the unstripped gas pipeline of gas direction.
Further, described standard gas distributing bottle adopts cylinder, linear electric motors are established on standard gas distributing bottle top, and the output of linear electric motors is fixedly connected with the piston end of standard gas distributing bottle, and the outlet side of standard gas distributing bottle bottom is connected with six-way valve 82 valve ports through being provided with the tracheae of magnetic valve.
Further, described unstripped gas pipeline is at least set to 2 tunnels.
The beneficial effects of the utility model are, 1. utilize standard gas preparation device preparing calibrating gas, process for preparation is all realized automation, compare with traditional gravimetric method, confecting efficiency, the content degree of accuracy all significantly improve, and can realize the continuous preparation of the multicomponent calibrating gas of single air cylinder, and greatly having improved operating efficiency, the index of preparation calibrating gas out reaches the standard of country-level standard substance.2. because standard gas distributing bottle adopts cylinder, and be equipped with linear electric motors, the air-tightness of cylinder is good, and allocative efficiency is high.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Wherein 1. computers, 2. mass flowmenter, 3. thermostatic chamber, 4. standard gas distributing bottle, 5. vavuum pump, 6. linear electric motors, 7. pressure sensor, 8. six-way valve, 9. quantity tube, 10. magnetic valve, 11. tracheaes, F1.F2.F3.F4.F5.F6.F7.F8. magnetic valve, Z. electromagnetic valve entrance, L. electromagnetic valve outlet.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1, a kind of fully automatic standard gas preparation device, it comprises high-pressure bottom air pipe, standard gas distributing bottle, thermostatic chamber 3, unstripped gas pipeline and vavuum pump 5, in described thermostatic chamber 3, establish six-way valve 8 and quantity tube 9, described high-pressure bottom air pipe, standard gas distributing bottle 4, unstripped gas pipeline, quantity tube 9 and vavuum pump 5 are connected in parallel with six-way valve 8, described high-pressure bottom air pipe and 4 series connection of standard gas distributing bottle, described standard gas distributing bottle 4 inlet ends are established pressure sensor 7, on described unstripped gas pipeline, establish mass flowmenter 2, the output of pressure sensor 7 and mass flowmenter 2 is connected in parallel with computer 1 respectively, on described high-pressure bottom air pipe and unstripped gas pipeline, all establish magnetic valve, magnetic valve is by described computer control.
Shown in 1, this fully automatic standard gas preparation device is provided with magnetic valve and has replaced traditional Manual pressure control valve, and in use, the easy to operate switching that can carry out electromagnetic valve for adjusting by computer according to different operations is closed, save manpower, increase operating efficiency, simultaneously, this device is also provided with pressure sensor 7, mass flowmenter 2 and computer 1, the pressure of the high-pressure bottom air pipe of pressure sensor 7 perception accurately certain pressure value also passes to computer 1 demonstration by signal, can learn easily whether high-pressure bottom air pipe inner high voltage spirit reaches the preparation condition of preparing calibrating gas, mass flowmenter 2 can accurately show the flow signal of unstripped gas in unstripped gas pipeline, the flow signal that shows unstripped gas according to mass flowmenter 1, the quality of needed unstripped gas while facilitating computer 1 to calculate configuration gas, make the accurate in scale of the content of calibrating gas of preparation and each constituent, steady quality meets the requirements, the high-pressure bottom air pipe of this device, standard gas distributing bottle 4, unstripped gas pipeline, quantity tube 9 and vavuum pump 5 are connected in parallel with six-way valve 8, and the sealing of six-way valve 8 is better, is difficult for entrained air, realize collection and transfer to gas in many gas circuits, 86,85 valve ports of six-way valve 8 are connected with quantity tube two ends, realize the control of quantity tube to unstripped gas quality, make the accurate in scale of the content of calibrating gas of preparation and constituent, steady quality.
Between 83,85,86 and 82 valve ports of the six-way valve 8 of this device, be connected in series, between 81 and 84 valve ports, be connected in series.
This fully automatic standard gas preparation device when preparing calibrating gas, concrete operation step: first, open magnetic valve F7, magnetic valve F1, F2, F3, F4, F5, F6, F8 is all closed, by vavuum pump 5 first by the high-pressure bottom air pipe being connected in parallel with six-way valve 8, standard gas distributing bottle 4, unstripped gas pipeline and quantity tube 9 vacuumize pre-treatment, and then, closed electrical magnet valve F3 and magnetic valve F4, simultaneously also by magnetic valve F1, F2, F5, F6, F7 and F8 all open, and then, high pressure spirit is by the high-pressure bottom air pipe magnetic valve F1 that flows through, F2, then passes through 81 of six-way valve 8 successively, 84 valve ports, then through magnetic valve F7, F6 and F5, when high pressure spirit process is established the high-pressure bottom air pipe of magnetic valve F5 and pressure sensor 7, pressure sensor 7 now can accurately measure the pressure of the high pressure spirit of high-pressure bottom air pipe, when reaching predefined pressure threshold value, the output of pressure sensor 7 is transferred to computer 1 by signal, last high pressure spirit is by high-pressure bottom air pipe outlet side Engage of standard gas distribution bottle 4, standard gas distributing bottle 4 adopts cylinder, linear electric motors 6 are established on standard gas distributing bottle 4 tops, the output of linear electric motors 6 is fixedly connected with the piston end of standard gas distributing bottle 4, by the transmission of linear electric motors 6, make piston compression standard gas distributing bottle 4 gases of standard gas distributing bottle 4, meanwhile, unstripped gas pipeline imports unstripped gas, flow of feed gas is through mass flowmenter 2, the flow that the 2 pairs of unstripped gas pipelines of mass flowmenter import unstripped gas accurately detects and shows flow signal, then unstripped gas is by the mass flowmenter 2 magnetic valve F8 that flows through, pass through successively 83 of six-way valve 8, 84, 85 and 86 valve ports, when flow of feed gas is through 85 and 86 valve ports to six-way valve 8, can show that flow signal calculates the quality of the required unstripped gas of configuration standard gas by mass flowmenter 2, and control by computer 1 quality that quantity tube 9 is controlled required unstripped gas, and by the unstripped gas (uniform quality of the unstripped gas that the quality of unstripped gas and configuration standard gas are required) after adjusting by 86 valve ports of six-way valve 8,82 valve ports of flowing through, and then by carrying out the mixing of gas in standard gas distributing bottle 4 bottom Engage of standard gas distribution bottles 4, reach required calibrating gas by tracheae 11 and through magnetic valve 10.
Above-mentioned high pressure spirit and unstripped gas when by magnetic valve being, be all by electromagnetic valve entrance Z hold into, electromagnetic valve outlet L brings out.
According to the kind of preparing calibrating gas, bed material air pipe can be established at least 2 tunnels, realize the single continuous preparation that realizes the multicomponent calibrating gas of single standard gas distributing bottle 4.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.

Claims (9)

1. a fully automatic standard gas preparation device, it is characterized in that, it comprises high-pressure bottom air pipe, standard gas distributing bottle, thermostatic chamber, unstripped gas pipeline and vavuum pump, in described thermostatic chamber, establish six-way valve and quantity tube, described high-pressure bottom air pipe, standard gas distributing bottle, unstripped gas pipeline, quantity tube and vavuum pump and six-way valve are connected in parallel, described high-pressure bottom air pipe and the series connection of standard gas distributing bottle, described standard gas distributing bottle inlet end is established pressure sensor, on described unstripped gas pipeline, establish mass flowmenter, the output of pressure sensor and mass flowmenter is connected in parallel with computer respectively, on described high-pressure bottom air pipe and unstripped gas pipeline, all establish magnetic valve, magnetic valve is by described computer control, described standard gas distributing bottle adopts cylinder, linear electric motors are established on standard gas distributing bottle top, the output of linear electric motors is fixedly connected with the piston end of standard gas distributing bottle, the outlet side of standard gas distributing bottle bottom is connected with six-way valve 82 valve ports through being provided with the tracheae of magnetic valve.
2. fully automatic standard gas preparation device as claimed in claim 1, is characterized in that, the corresponding quantity tube two ends that connect of described six-way valve 86,85 valve ports.
3. fully automatic standard gas preparation device as claimed in claim 1, is characterized in that, described six-way valve 81 valve ports are connected with high-pressure bottom air pipe, comes to establish successively magnetic valve F1 and magnetic valve F2 on the high-pressure bottom air pipe of gas direction.
4. fully automatic standard gas preparation device as claimed in claim 1, it is characterized in that, the high-pressure bottom air pipe Shang She branch high-pressure bottom air pipe of section between described magnetic valve F1 and magnetic valve F2, the outlet side of branch's high-pressure bottom air pipe is connected with six-way valve 82 valve ports, comes to establish successively magnetic valve F3 and magnetic valve F4 on branch's high-pressure bottom air pipe of gas direction.
5. fully automatic standard gas preparation device as claimed in claim 1, it is characterized in that, between described magnetic valve F3 and magnetic valve F4, on the high-pressure bottom air pipe of section, set branch's high-pressure bottom air pipe, the outlet side of inferior division high-pressure bottom air pipe is connected with standard gas distributing bottle inlet end, both junctions are arranged in the below of standard gas distributing bottle piston, come to establish successively magnetic valve F5 and pressure sensor on the inferior division high-pressure bottom air pipe of gas direction.
6. fully automatic standard gas preparation device as claimed in claim 1, is characterized in that, described six-way valve 84 valve ports are connected with vavuum pump, on the tracheae that both connect, establishes magnetic valve F7.
7. fully automatic standard gas preparation device as described in claim 1 or 5, it is characterized in that, between described magnetic valve F3 and magnetic valve F4, on the high-pressure bottom air pipe of section, establish upper the high-pressure bottom air pipe containing magnetic valve F6, the outlet side of top set's high-pressure bottom air pipe is arranged on the tracheae between described magnetic valve F7 and vavuum pump.
8. fully automatic standard gas preparation device as claimed in claim 1, is characterized in that, the outlet side of described unstripped gas pipeline is connected with six-way valve 83 valve ports, comes to establish successively mass flowmenter and magnetic valve F8 on the unstripped gas pipeline of gas direction.
9. fully automatic standard gas preparation device as described in claim 1 or 8, is characterized in that, described unstripped gas pipeline is at least set to 2 tunnels.
CN201420038863.3U 2014-01-21 2014-01-21 Full-automatic standard gas preparation device Active CN203853061U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105606771A (en) * 2016-01-30 2016-05-25 北京理工大学 Full-automatic gas distribution system and manner for constant-volume premixed gas experiment
CN107789999A (en) * 2016-08-30 2018-03-13 中国石油天然气股份有限公司 A kind of device and method for preparing more bottles of standard mixtures
CN108319305A (en) * 2018-02-05 2018-07-24 北京卫星环境工程研究所 Spacecraft packing case automatic gas distribution system
CN108983832A (en) * 2017-06-01 2018-12-11 河北农业大学 A kind of automatic and accurate prepares the apparatus and method of certain concentration high-pressure carbon dioxide
CN109603597A (en) * 2018-12-05 2019-04-12 武汉钢铁集团气体有限责任公司 Low concentration multi component mixed gas production system
CN110686905A (en) * 2019-10-09 2020-01-14 浙江多普勒环保科技有限公司 Simulated exhaust emission device for motor vehicle remote sensing equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105606771A (en) * 2016-01-30 2016-05-25 北京理工大学 Full-automatic gas distribution system and manner for constant-volume premixed gas experiment
CN105606771B (en) * 2016-01-30 2017-04-26 北京理工大学 Full-automatic gas distribution system and manner for constant-volume premixed gas experiment
CN107789999A (en) * 2016-08-30 2018-03-13 中国石油天然气股份有限公司 A kind of device and method for preparing more bottles of standard mixtures
CN108983832A (en) * 2017-06-01 2018-12-11 河北农业大学 A kind of automatic and accurate prepares the apparatus and method of certain concentration high-pressure carbon dioxide
CN108319305A (en) * 2018-02-05 2018-07-24 北京卫星环境工程研究所 Spacecraft packing case automatic gas distribution system
CN108319305B (en) * 2018-02-05 2021-03-02 北京卫星环境工程研究所 Automatic gas distribution system for spacecraft packaging box
CN109603597A (en) * 2018-12-05 2019-04-12 武汉钢铁集团气体有限责任公司 Low concentration multi component mixed gas production system
CN109603597B (en) * 2018-12-05 2021-06-29 武汉钢铁集团气体有限责任公司 Low-concentration multi-component mixed gas production system
CN110686905A (en) * 2019-10-09 2020-01-14 浙江多普勒环保科技有限公司 Simulated exhaust emission device for motor vehicle remote sensing equipment

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