CN201493080U - Full-automatic standard gas preparation device - Google Patents
Full-automatic standard gas preparation device Download PDFInfo
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- CN201493080U CN201493080U CN2009202257132U CN200920225713U CN201493080U CN 201493080 U CN201493080 U CN 201493080U CN 2009202257132 U CN2009202257132 U CN 2009202257132U CN 200920225713 U CN200920225713 U CN 200920225713U CN 201493080 U CN201493080 U CN 201493080U
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- gas circuit
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- electromagnetic valve
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Abstract
The utility model provides a full-automatic standard gas preparation device, comprising a high-pressure bottom gas gas circuit, a raw gas gas circuit, a thermostatic chamber, a standard gas distribution bottle, a vacuum pump, a pressure sensor and a plurality of electromagnetic valves. The utility model is characterized in that a six-way valve and a quantitative pipe are additionally arranged in the thermostatic chamber, wherein the fifth end and the sixth end of the six-way valve are correspondingly connected with both ends of the quantitative pipe, and the fourth end is connected with the vacuum pump by the electromagnetic valves; the third end is connected with raw gas by the raw gas gas circuit, and the first end is connected with the high-pressure bottom gas gas circuit which is provided with a first electromagnetic valve and a second electromagnetic valve; the second end is connected with the vacuum pump by a gas circuit provided with a fourth electromagnetic valve and a sixth electromagnetic valve, is connected with a gas circuit between the first electromagnetic valve and the second electromagnetic valve by a gas circuit provided with the fourth electromagnetic valve and a third electromagnetic valve, and is connected with the standard gas distribution bottle by a gas circuit provided with the fourth electromagnetic valve and a fifth electromagnetic valve; and the pressure sensor is arranged on a gas circuit between the fifth electromagnetic valve and the standard gas distribution bottle. The device has the advantages of accurate preparation content and high efficiency, and the prepared standard gas is one-level national standard materials.
Description
Technical field
The utility model provides a kind of fully automatic standard gas preparation device, belongs to the Electric automation technology field.
Background technology
The effect of standard substance is to realize accurately consistent measurement, guarantees magnitude tracing.Calibrating gas is widely used in calibration, atmosphere environment supervision, health care, the clinical examination of product quality supervision and quality control, instrument and meter, the fields such as evaluation of analytical method, the preparation method of calibrating gas has multiple, as gravimetric method, static capacity method and dynamic anemostat method etc., the wherein wt method is most widely used in China.Gravimetric method is with the absolute method of measurement of quality as benchmark, has the high characteristics of the degree of accuracy, belongs to internationally recognized standard method.Traditional gravimetric method, the weighing of its component gas are the keys of preparation standard gas since the quality of gas cylinder own big (be generally 2～20kg), and the component gas quality that charges into less relatively (2～20g), therefore require very high to balance.The unstrpped gas that need adopt the high-accuracy balance weighing of big load (20kg), small sensible weight (10mg) to fill people's gas cylinder charges into the high pressure spirit of gas cylinder with electronic balance [maximum load (16kg), sensibility reciprocal (0.1g)] weighing.For very a spot of gas of institute's filling in the gas cylinder that accurately the weighing quality is very big, except balance is had high requirements, also require to guarantee certain weighed amount.Like this, in the weighing operation, be difficult to guarantee to reach the very high degree of accuracy.And, in the time of preparing the multicomponent calibrating gas, precision weighing unstripped gas to be prepared repeatedly
Quality, very high to the stability and the accuracy requirement of operation, process is very loaded down with trivial details.
Adopt fully automatic standard gas preparation device, the quality that participates in the unstripped gas of preparation is passed through mass flowmenter, obtain by the computer accurate Calculation, measuring accuracy increases substantially, exempted manual gravimetric method the craft that must adopt take by weighing the complicated processes of unstripped gas and high pressure dilution spirit, improve automatization level, and can realize the preparation of any concentration standard gas and multicomponent calibrating gas automatically.
The utility model content
The purpose of this utility model provides a kind ofly can overcome above-mentioned defective, formulation content is accurate, efficient is high, and can realize the continuous preparation fully automatic standard gas preparation device of the multicomponent calibrating gas of single gas cylinder.Its technology contents is:
Comprise computer, be provided with the high pressure spirit gas circuit of magnetic valve, be provided with the unstripped gas gas circuit of mass flowmenter and magnetic valve, thermostatic chamber, the standard gas distributing bottle, vavuum pump, temperature measuring set, pressure sensor and some magnetic valves, it is characterized in that: in thermostatic chamber, set up six-way valve and quantity tube, 5 ends of six-way valve wherein, 6 end correspondences connect the two ends of quantity tube, 4 ends connect vavuum pump by the 7th magnetic valve, 3 ends connect unstripped gas by the unstripped gas gas circuit, 1 termination is provided with the high pressure spirit gas circuit of first magnetic valve and second magnetic valve, 2 ends connect vavuum pump through the gas circuit that is provided with the 4th magnetic valve and the 6th magnetic valve successively, connect gas circuit between first magnetic valve and second magnetic valve through the gas circuit that is provided with the 4th magnetic valve and the 3rd magnetic valve successively, connect the standard gas distributing bottle through the gas circuit that is provided with the 4th magnetic valve and the 5th magnetic valve successively, pressure sensor is arranged on the gas circuit between the 5th magnetic valve and the standard gas distributing bottle, temperature measuring set, mass flowmenter, the output of pressure sensor all connects computer, the quality that participates in the unstripped gas of preparation is the flow signal by mass flowmenter, calculates and gets through computer.
Described fully automatic standard gas preparation device, unstripped gas gas circuit are to be provided with a road of mass flowmenter and the 8th magnetic valve, 3 ends of output termination six-way valve.
Described fully automatic standard gas preparation device, the unstripped gas gas circuit is a multichannel, whenever be equipped with mass flowmenter and the 8th magnetic valve on the way, output all connects 3 ends of six-way valve, magnetic valve and mass flowmenter by any interpolation control break-make on the pipeline contact that the gas kind that participates in preparing can go out in 3 terminations of six-way valve obtain, the homogeneous raw material gas of being prepared also can be by the flow signal of computer acquisition quality flowmeter, the unstripped gas quality that control enters quantity tube realizes the preparation of any concentration standard gas.
Described fully automatic standard gas preparation device, thermostatic chamber adopt the constant temperature air chamber, and 50 ℃ of the temperature constant of thermostatic chamber during preparing calibrating gas with six-way valve constant temperature to 50 ℃, realize the constant temperature distribution.
Described fully automatic standard gas preparation device, the standard gas distributing bottle is arranged in the container that is provided with temperature measuring set.
Its operation principle is: six-way valve outage, be positioned at initial position, and the thermostatic chamber at six-way valve place is carried out 50 ℃ of constant temperature, constant temperature time arrives, and opens vavuum pump.Open the 5th magnetic valve, the 6th magnetic valve and the 7th magnetic valve, vavuum pump by the 7th magnetic valve respectively to quantity tube, the standard gas distributing bottle is vacuumized by the 6th magnetic valve and the 5th magnetic valve, after recording the end vacuum (10Pa) that is extracted into regulation by pressure sensor, close the 5th magnetic valve, the 6th magnetic valve and the 7th magnetic valve, close vavuum pump.Open the 8th magnetic valve, unstripped gas enters quantity tube by mass flowmenter, the 8th magnetic valve, and the unstripped gas that enters quantity tube is closed the 8th magnetic valve after reaching the mass M 1 that sets.With the six-way valve energising, make six-way valve switch to the second place.Open successively first, second, the 4th, the 5th magnetic valve, the unstripped gas that the high pressure spirit will be connected in the quantity tube of six-way valve pours the standard gas distributing bottle.After continuing for some time and guarantee that unstrpped gas in the quantity tube all enters the distribution bottle, close the second, the 4th magnetic valve, open the 3rd magnetic valve, the high pressure spirit continues the pressurising of distribution bottle by the first, the 3rd, the 5th magnetic valve, up to the force value of regulation.By the temperature of the pressure of the volume of distribution bottle, distribution bottle mesohigh spirit and the distribution bottle place environment that records, the quality that obtains entering the high pressure spirit of distribution bottle according to standard gaseous equation is M2.The mass M 1 and the gaseous mixture gross mass (M1+M2) of the aforesaid unstripped gas that enters the distribution bottle) ratio, be the gas content of institute's preparing calibrating gas: G=M1/ (M1+M2), unit conversion are the PPM value.
The utility model compared with prior art, utilize the 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 gas cylinder greatly having improved operating efficiency, the index of the calibrating gas that preparation is come out reaches the standard of country-level standard substance.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Among the figure: 1, computer 2, mass flowmenter 3, thermostatic chamber 4, standard gas distributing bottle 5, vavuum pump 6, temperature measuring set 7, pressure sensor 8, six-way valve 9, quantity tube 10, container F 1, the first magnetic valve F2, the second magnetic valve F3, the 3rd magnetic valve F4, the 4th magnetic valve F5, the 5th magnetic valve F6, the 6th magnetic valve F7, the 7th magnetic valve F8, the 8th magnetic valve
The specific embodiment
In the embodiment in figure 1,1 end of all magnetic valves is represented electromagnetic valve entrance, and 2 ends are represented electromagnetic valve outlet.Thermostatic chamber 3 adopts the constant temperature air chamber, six-way valve 8 and quantity tube 9 all are arranged in the thermostatic chamber 3, standard gas distributing bottle 4 is arranged in the container 10 that is provided with temperature measuring set 6,5 ends of six- way valve 8,6 end correspondences connect the two ends of quantity tube 9,4 ends connect vavuum pump 5 by the 7th magnetic valve F7,3 ends connect unstripped gas by the unstripped gas gas circuit that is provided with mass flowmenter 2 and the 8th magnetic valve F8,1 termination is provided with the high pressure spirit gas circuit of the first magnetic valve F1 and the second magnetic valve F2,2 ends connect vavuum pump 5 through the gas circuit that is provided with the 4th magnetic valve F4 and the 6th magnetic valve F6 successively, connect gas circuit between the first magnetic valve F1 and the second magnetic valve F2 through the gas circuit that is provided with the 4th magnetic valve F4 and the 3rd magnetic valve F3 successively, connect standard gas distributing bottle 4 through the gas circuit that is provided with the 4th magnetic valve F4 and the 5th magnetic valve F5 successively, pressure sensor 7 is arranged on the gas circuit between the 5th magnetic valve F5 and the standard gas distributing bottle 4, temperature measuring set 6, mass flowmenter 2, the output of pressure sensor 7 all connects computer 1, the quality that participates in the unstripped gas of preparation is the flow signal by mass flowmenter 2, and machine 1 calculates and gets as calculated.
As required, the unstripped gas gas circuit also can be multichannel, the 8th magnetic valve F8 and mass flowmenter 2 by any interpolation control break-make on the pipeline contact A that the gas kind that participates in preparing can go out in 3 terminations of six-way valve 8 obtain, the homogeneous raw material gas of being prepared also can be by the flow signal of computer 1 acquisition quality flowmeter 2, the unstripped gas quality that control enters quantity tube 9 realizes the preparation of any concentration standard gas.Can realize the continuous preparation of the multicomponent calibrating gas of single gas cylinder, greatly improve operating efficiency, the index of the calibrating gas that preparation is come out reaches the standard of country-level standard substance.
Claims (5)
1. fully automatic standard gas preparation device, comprise computer (1), be provided with the high pressure spirit gas circuit of magnetic valve, be provided with the unstripped gas gas circuit of mass flowmenter (2) and magnetic valve, thermostatic chamber (3), standard gas distributing bottle (4), vavuum pump (5), temperature measuring set (6), pressure sensor (7) and some magnetic valves, it is characterized in that: in thermostatic chamber (3), set up six-way valve (8) and quantity tube (9), 5 ends of six-way valve (8) wherein, 6 end correspondences connect the two ends of quantity tube (9), 4 ends connect vavuum pump (5) by the 7th magnetic valve F7,3 ends connect unstripped gas by the unstripped gas gas circuit, 1 termination is provided with the high pressure spirit gas circuit of the first magnetic valve F1 and the second magnetic valve F2,2 ends connect vavuum pump (5) through the gas circuit that is provided with the 4th magnetic valve F4 and the 6th magnetic valve F6 successively, connect gas circuit between the first magnetic valve F1 and the second magnetic valve F2 through the gas circuit that is provided with the 4th magnetic valve F4 and the 3rd magnetic valve F3 successively, connect standard gas distributing bottle (4) through the gas circuit that is provided with the 4th magnetic valve F4 and the 5th magnetic valve F5 successively, pressure sensor (7) is arranged on the gas circuit between the 5th magnetic valve F5 and the standard gas distributing bottle (4), temperature measuring set (6), mass flowmenter (2), the output of pressure sensor (7) all connects computer (1).
2. fully automatic standard gas preparation device as claimed in claim 1 is characterized in that: the unstripped gas gas circuit is for being provided with a road of mass flowmenter (2) and the 8th magnetic valve F8,3 ends of output termination six-way valve (8).
3. fully automatic standard gas preparation device as claimed in claim 1 is characterized in that: the unstripped gas gas circuit is a multichannel, whenever is equipped with mass flowmenter (2) and the 8th magnetic valve F8 on the way, and output all connects 3 ends of six-way valve (8).
4. fully automatic standard gas preparation device as claimed in claim 1 is characterized in that: thermostatic chamber (3) adopts constant temperature air chamber, 50 ℃ of the temperature constant of thermostatic chamber during preparing calibrating gas (3).
5. fully automatic standard gas preparation device as claimed in claim 1 is characterized in that: standard gas distributing bottle (4) is arranged in the container (10) that is provided with temperature measuring set (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202257132U CN201493080U (en) | 2009-09-04 | 2009-09-04 | Full-automatic standard gas preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202257132U CN201493080U (en) | 2009-09-04 | 2009-09-04 | Full-automatic standard gas preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201493080U true CN201493080U (en) | 2010-06-02 |
Family
ID=42436290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202257132U Expired - Lifetime CN201493080U (en) | 2009-09-04 | 2009-09-04 | Full-automatic standard gas preparation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201493080U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708442B (en) * | 2009-09-04 | 2011-08-24 | 山东中惠仪器有限公司 | Fully automatic standard gas preparation device |
| CN104028130A (en) * | 2014-06-19 | 2014-09-10 | 大连大特气体有限公司 | Full-automatic standard gas production device |
-
2009
- 2009-09-04 CN CN2009202257132U patent/CN201493080U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708442B (en) * | 2009-09-04 | 2011-08-24 | 山东中惠仪器有限公司 | Fully automatic standard gas preparation device |
| CN104028130A (en) * | 2014-06-19 | 2014-09-10 | 大连大特气体有限公司 | Full-automatic standard gas production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100602 Effective date of abandoning: 20090904 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100602 Effective date of abandoning: 20090904 |