CN203164194U - Standard gas obtaining equipment and gas supplying system based on standard gas - Google Patents
Standard gas obtaining equipment and gas supplying system based on standard gas Download PDFInfo
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- CN203164194U CN203164194U CN 201320153268 CN201320153268U CN203164194U CN 203164194 U CN203164194 U CN 203164194U CN 201320153268 CN201320153268 CN 201320153268 CN 201320153268 U CN201320153268 U CN 201320153268U CN 203164194 U CN203164194 U CN 203164194U
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- joint
- gas cylinder
- gas
- connector
- compressed gas
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Abstract
The embodiment of the utility model discloses standard gas obtaining equipment and a gas supplying system based on standard gas. The standard gas obtaining equipment comprises a compressed air bottle connector, a washing air bottle for containing background gas and a decompression valve, wherein the compressed air bottle connector is a three-way pipe comprising a first connector, a second connector and a third connector; the first connector is connected with a bottle opening of a compressed air bottle containing the standard gas; the second connector is connected with a bottle opening of the washing air bottle; the third connector is connected with a valve inlet of the decompression valve; when the background gas blows impurities in a dead volume until the content of the impurities is lower than a pre-set value, the standard gas can be obtained through the standard gas obtaining equipment, so that under the preconditions that the utilization rate of the standard gas is not reduced and the sample amount of the standard gas is less, the residual impurities in the dead volume can be effectively cleaned.
Description
Technical field
The utility model relates to calibrating gas analysis and quantitative measurement technology field, more particularly, relates to a kind of calibrating gas and obtains equipment and a kind of air supply system based on calibrating gas.
Background technology
For the calibrating gas of splendid attire in the compressed gas cylinder, generally by reduction valve it is reduced pressure for utilization, described reduction valve is connected by the compressed gas cylinder connector with compressed gas cylinder.Existing compressed gas cylinder connector, the one end is connected in the bottleneck of described compressed gas cylinder, and the other end is connected in the valve inlet of described reduction valve, makes described calibrating gas be circulated to described valve inlet.
Because described compressed gas cylinder contacts with the external world in the process that is connected by described compressed gas cylinder connector with reduction valve, the hollow pipeline (being dead volume) that causes existing between the bottleneck of the valve export of described reduction valve and described compressed gas cylinder can be filled a large amount of impurity inevitably, as nitrogen, oxygen and the water vapour etc. that comprise in the air, cause reducing from the calibrating gas purity that described valve export obtains, even go bad with described impurity generation chemical reaction; Especially described calibrating gas being carried out constituent analysis and quantitatively detecting and wait the technical field with high-precision requirement, more can cause its analysis and testing result distortion.
For getting rid of the impurity of filling in the dead volume, general calibrating gas by splendid attire in the described compressed gas cylinder purges it at present, but, for guaranteeing to purge thoroughly, need to use more calibrating gas to purge for a long time, and reduce the utilization factor of described calibrating gas, and when the sample size of described calibrating gas more after a little while, then be not enough to finish above-mentioned purging task.
The utility model content
In view of this, the utility model provides a kind of calibrating gas to obtain equipment and a kind of air supply system based on calibrating gas, is not reducing under the less prerequisite of described calibrating gas utilization factor and described calibrating gas sample size remaining impurities in the cleaning dead volume.
A kind of calibrating gas obtains equipment, comprising: the compressed gas cylinder connector, be loaded with flushing gas cylinder and the reduction valve of background gas;
Wherein, described compressed gas cylinder connector is the three-way pipe that comprises first joint, second joint and the 3rd joint; Described first joint can be connected with the bottleneck of the compressed gas cylinder that is loaded with described calibrating gas, and described second joint is connected with the bottleneck of described flushing gas cylinder, and described the 3rd joint is connected with the valve inlet of described reduction valve.
Alternatively, also comprise:
Be arranged at the valve export place of described reduction valve, for detection of the pick-up unit of impurity content in the background gas that flows out described reduction valve.
Wherein, the port position of described first joint, second joint and the 3rd joint all is the rounding horn shape.
Wherein, described second joint comprises: connecting pipe and sleeve pipe;
One end of described sleeve pipe directly links to each other with second joint with described first joint, and the other end is provided with bore less than the socket of described casing inner diameter, and described sleeve pipe closely links to each other with the connecting pipe that inserts this socket by described socket;
Described connecting pipe is positioned at the passage that described sleeve pipe and first joint are connected and form.
Alternatively, also comprise:
Be arranged at first securing member of the junction of described first joint and described compressed gas cylinder bottleneck, be arranged at second securing member of the junction of described second joint and described flushing bottle mouth of gas cylinder, be arranged at the 3rd securing member of junction of the valve inlet of described the 3rd joint and described reduction valve.
Wherein, the described compressed gas cylinder connector compressed gas cylinder connector that is stainless steel.
A kind of air supply system based on calibrating gas comprises that above-mentioned any calibrating gas obtains equipment and the compressed gas cylinder that is loaded with described calibrating gas;
First joint that described calibrating gas obtains the compressed gas cylinder connector of equipment is connected with the bottleneck of described compressed gas cylinder.
From above-mentioned technical scheme as can be seen, the utility model embodiment discloses and a kind ofly has been provided with the compressed gas cylinder connector, be loaded with the flushing gas cylinder of background gas and the calibrating gas of reduction valve obtains equipment, and described compressed gas cylinder connector is the three-way pipe that comprises first joint, second joint and the 3rd joint; Described first joint can be connected with the bottleneck of the compressed gas cylinder that is loaded with described calibrating gas, described second joint is connected with the bottleneck of described flushing gas cylinder, described the 3rd joint is connected with the valve inlet of described reduction valve, thereby formed with described first joint and described the 3rd joint respectively as the entrance and exit of described calibrating gas, and with described second joint and described the 3rd joint respectively as two distribution channels of the entrance and exit of described background gas, when treating that described background gas is lower than desired value with the purging of the impurity in the dead volume to its impurity content, obtain equipment by this calibrating gas again and obtain described calibrating gas, compared to prior art, the application is not reducing under the less prerequisite of described calibrating gas utilization factor and described calibrating gas sample size, can effectively clean remaining impurities in the dead volume.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 obtains the device structure synoptic diagram for the disclosed a kind of calibrating gas of the utility model embodiment;
Fig. 2 is the disclosed a kind of air supply system structural representation based on calibrating gas of the utility model embodiment;
Fig. 3 obtains the device structure synoptic diagram for disclosed another calibrating gas of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model embodiment discloses a kind of calibrating gas and has obtained equipment, do not reduce under the less situation of described calibrating gas utilization factor and described calibrating gas sample size to be implemented in, remaining impurities in the cleaning dead volume comprises: compressed gas cylinder connector 100, the flushing gas cylinder 200 that is loaded with background gas and reduction valve 300;
Described compressed gas cylinder connector 100 is the three-way pipe that comprises first joint 101, second joint 102 and the 3rd joint 103; Described first joint 101 can be used for being connected with the bottleneck of the compressed gas cylinder that is loaded with described calibrating gas, and described second joint 102 is connected with the bottleneck of described flushing gas cylinder 200, and described the 3rd joint 103 is connected with the valve inlet of described reduction valve 300.
Described compressed gas cylinder connector 100 has with described first joint 101 and described the 3rd joint 103 respectively as the air intake opening of described calibrating gas and gas outlet and first distribution channel that forms, and with described second joint 102 and described the 3rd joint 103 respectively as the air intake opening of described background gas and gas outlet and second distribution channel that forms.But described compressed gas cylinder connector 100 is integral molding in process of production, also can described first joint 101, second joint 102 and the 3rd joint 103 be as three separating component assembled formations, do not limit to.
Described background gas claims balance gas again, is a kind of constituent analysis of described calibrating gas and high-purity gas carrier gas that quantitatively detects of not influencing.
Described reduction valve 300 is a kind ofly by regulating action intake pressure to be reduced to the top hole pressure that needs, and relies on the energy of circulation medium itself, makes the top hole pressure stable pressure loading valve of maintenance automatically.
Described calibrating gas obtains equipment and is applied to a kind of air supply system based on described calibrating gas, and referring to Fig. 2, described air supply system based on described calibrating gas comprises: described calibrating gas obtains equipment and is loaded with the compressed gas cylinder 400 of described calibrating gas;
Wherein, described calibrating gas first joint 101 that obtains the compressed gas cylinder connector 100 of equipment is connected with the bottleneck of described compressed gas cylinder 400.
At first, obtain under the situation that device assembles finishes at described calibrating gas, described first joint 101 closely is connected with the compressed gas cylinder 400 that is loaded with described calibrating gas, open the bottleneck of described flushing gas cylinder 200 and the valve of described reduction valve 300, and regulate its valve opening, make the air intake opening flow of described second distribution channel greater than the gas outlet flow, thereby guarantee that described background gas can be full of whole dead volume, purge the impurity of wherein filling clean;
Described valve opening can be regulated according to the valve export place flow size of described reduction valve 300, generally speaking, keeps this flow size to get final product in 100mL/min～300mL/min scope, but does not limit to.
After treating that described valve export place impurity content is reduced to desired value, can close the bottleneck of described flushing gas cylinder 200, open the bottleneck of described compressed gas cylinder 400 simultaneously, discharge described calibrating gas.Wherein, whether be reduced to the judgment criteria of desired value for described impurity content, can decide according to described background gas evacuation time, as rule of thumb as can be known, the flow size that described background gas is discharged described valve export is during for 200mL/min, 2 minutes times spent can be reduced to desired value with the cleaning of the impurity in the dead volume to its content, treated that so switching to compressed gas cylinder 400 exhausts by flushing gas cylinder 200 after 2 minutes gets final product; Perhaps, can also obtain valve export place that equipment configuration is arranged at described reduction valve 300 for described calibrating gas, for detection of the pick-up unit (Fig. 1, Fig. 2 are also not shown) of impurity content in the background gas that flows out described reduction valve 300, described pick-up unit can be hygrometer or oxygen analyzer, corresponding, moisture is lower than the moisture desired value or oxygen content is lower than the oxygen desired value, i.e. changeable described compressed gas cylinder 400 exhausts in detecting described background gas.
Consider in the practical application, described first joint 101 is compared to described second joint 102, the distance of described the 3rd joint 103 of distance will be grown, that is to say, the air intake opening of described second circulation passage (being described second joint 102) is apart from the close together of its gas outlet (being described the 3rd joint .103), so described background gas is drained into described first joint 101 places through described gas outlet and is purged near the consuming time longer of impurity it, and can reduce the utilization factor of described background gas.
In view of this, Fig. 3 shows another calibrating gas and obtains equipment, is applied to the air supply system based on described calibrating gas, and second joint 102 can comprise described in the present embodiment: connecting pipe 1021 and sleeve pipe 1022;
One end of described sleeve pipe 1022 directly links to each other with second joint 102 with described first joint 102, and the other end is provided with bore less than the socket of described sleeve pipe 1022 internal diameters, and described sleeve pipe 1022 closely links to each other with the connecting pipe 1021 that inserts this socket by described socket; Described connecting pipe 1021 is positioned at the passage that described sleeve pipe 1022 and first joint 101 are connected and form.
Wherein, described compressed gas cylinder connector 100 in process of production, described sleeve pipe 1022 can with described first joint 102 and second joint, 102 integral moldings, be connected with 1021 assemblings of described connecting pipe again.
So, the background gas that enters described second circulation passage from described air intake opening was kept away described gas outlet, at first drained into described first joint 101 places and carried out the impurity cleaning, just drained into described air intake opening place through described gas outlet then, and finally discharged by described gas outlet.It is described background gas is filled to described second joint 102 through described the 3rd joint 103 process, be filled to the process of described first joint 101 through described the 3rd joint 103 compared to described background gas, described background gas is less from described the 3rd joint 103 effluent airs, improved the utilization factor of described background gas, and purge the process time spent of impurity in the described dead volume still less, improved work efficiency.
As preferably, for guaranteeing that described calibrating gas obtains equipment impermeability in the course of the work, the port position of described first joint 101, second joint 102 and the 3rd joint 103 can be set to the rounding horn shape, is convenient to its correspondence and inserts the valve inlet of the bottleneck of described compressed gas cylinder 400, the bottleneck that washes gas cylinder 200 and reduction valve 300 and insert distance darker.
In addition, described calibrating gas obtains first securing member (Fig. 3 is also not shown) that equipment also may be configured with the junction that is arranged at described first connector 101 and described compressed gas cylinder 400 bottlenecks, be arranged at second securing member (Fig. 3 is also not shown) of the junction of described second connector 102 and described flushing gas cylinder 200 bottlenecks, be arranged at the 3rd securing member (Fig. 3 and not shown) of junction of the valve inlet of described joint among three members 103 and described reduction valve 300, make described compressed gas cylinder connector 100 and described compressed gas cylinder 400, flushing gas cylinder 200 is connected closelyr with reduction valve 300, guarantees the impermeability in dead volume space.
Wherein, the material of described compressed gas cylinder connector 100 can be selected stainless steel for use, but does not limit to.
In sum, the utility model embodiment discloses and a kind ofly has been provided with the compressed gas cylinder connector, be loaded with the flushing gas cylinder of background gas and the calibrating gas of reduction valve obtains equipment, and described compressed gas cylinder connector is the three-way pipe that comprises first joint, second joint and the 3rd joint; Described first joint can be connected with the bottleneck of the compressed gas cylinder that is loaded with described calibrating gas, described second joint is connected with the bottleneck of described flushing gas cylinder, described the 3rd joint is connected with the valve inlet of described reduction valve, thereby formed with described first joint and described the 3rd joint respectively as air intake opening and the gas outlet of described calibrating gas, and with described second joint and described the 3rd joint respectively as the air intake opening of described background gas and two distribution channels of gas outlet, when treating that described background gas is lower than desired value with the purging of the impurity in the dead volume to its impurity content, obtain equipment by this calibrating gas again and obtain described calibrating gas, compared to prior art, the application is not reducing under the less prerequisite of described calibrating gas utilization factor and described calibrating gas sample size, can effectively clean remaining impurities in the dead volume.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation of the spirit or scope that do not break away from the utility model embodiment in other embodiments herein.Therefore, the utility model embodiment will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a calibrating gas obtains equipment, it is characterized in that, comprising: the compressed gas cylinder connector, be loaded with flushing gas cylinder and the reduction valve of background gas;
Wherein, described compressed gas cylinder connector is the three-way pipe that comprises first joint, second joint and the 3rd joint; Described first joint can be connected with the bottleneck of the compressed gas cylinder that is loaded with described calibrating gas, and described second joint is connected with the bottleneck of described flushing gas cylinder, and described the 3rd joint is connected with the valve inlet of described reduction valve.
2. equipment according to claim 1 is characterized in that, also comprises:
Be arranged at the valve export place of described reduction valve, for detection of the pick-up unit of impurity content in the background gas that flows out described reduction valve.
3. equipment according to claim 1 is characterized in that, the port position of described first joint, second joint and the 3rd joint all is the rounding horn shape.
4. equipment according to claim 1 is characterized in that, described second joint comprises: connecting pipe and sleeve pipe;
One end of described sleeve pipe directly links to each other with second joint with described first joint, and the other end is provided with bore less than the socket of described casing inner diameter, and described sleeve pipe closely links to each other with the connecting pipe that inserts this socket by described socket;
Described connecting pipe is positioned at the passage that described sleeve pipe and first joint are connected and form.
5. equipment according to claim 1 is characterized in that, also comprises:
Be arranged at first securing member of the junction of described first joint and described compressed gas cylinder bottleneck, be arranged at second securing member of the junction of described second joint and described flushing bottle mouth of gas cylinder, be arranged at the 3rd securing member of junction of the valve inlet of described the 3rd joint and described reduction valve.
6. equipment according to claim 1 is characterized in that, the compressed gas cylinder connector that described compressed gas cylinder connector is stainless steel.
7. the air supply system based on calibrating gas is characterized in that, comprises that each described calibrating gas obtains equipment and the compressed gas cylinder that is loaded with described calibrating gas among the claim 1-6;
First joint that described calibrating gas obtains the compressed gas cylinder connector of equipment is connected with the bottleneck of described compressed gas cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153268 CN203164194U (en) | 2013-03-29 | 2013-03-29 | Standard gas obtaining equipment and gas supplying system based on standard gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320153268 CN203164194U (en) | 2013-03-29 | 2013-03-29 | Standard gas obtaining equipment and gas supplying system based on standard gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203164194U true CN203164194U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320153268 Expired - Lifetime CN203164194U (en) | 2013-03-29 | 2013-03-29 | Standard gas obtaining equipment and gas supplying system based on standard gas |
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| CN (1) | CN203164194U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196709A (en) * | 2013-03-29 | 2013-07-10 | 重庆市电力公司电力科学研究院 | Standard gas acquisition device and gas supply system based on standard gas |
-
2013
- 2013-03-29 CN CN 201320153268 patent/CN203164194U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196709A (en) * | 2013-03-29 | 2013-07-10 | 重庆市电力公司电力科学研究院 | Standard gas acquisition device and gas supply system based on standard gas |
| CN103196709B (en) * | 2013-03-29 | 2015-11-18 | 重庆市电力公司电力科学研究院 | A kind of calibrating gas obtains equipment and the air supply system based on calibrating gas |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |