CN205844022U - A kind of liquid material sampling device prepared for calibrating gas - Google Patents
A kind of liquid material sampling device prepared for calibrating gas Download PDFInfo
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- CN205844022U CN205844022U CN201620826299.0U CN201620826299U CN205844022U CN 205844022 U CN205844022 U CN 205844022U CN 201620826299 U CN201620826299 U CN 201620826299U CN 205844022 U CN205844022 U CN 205844022U
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Abstract
The utility model discloses a kind of liquid material sampling device prepared for calibrating gas, this device connects mixed gas preparation facilities, and this sampling device comprises gas filling bottle, electronic balance and the injector being connected with the cylinder valve entrance of gas filling bottle.This injector comprises syringe, entry needle and rubber stopper, and entry needle is arranged on the end of syringe, and rubber stopper seal is arranged on the cylinder valve entrance of gas filling bottle, and entry needle inserts rubber stopper, and syringe needle position is exposed in gas filling bottle.This device is simple, weighs precisely, is connected with mixed gas preparation facilities, it is possible to fast and convenient prepares the organic calibrating gas of mixed volatilization, and accuracy is high, and the market competitiveness is higher.
Description
Technical field
This utility model relates to a kind of liquid material sampling device, is specifically related to a kind of liquid prepared for calibrating gas
Raw material sampling device.
Background technology
In VOC (VOC) detects, overwhelming majority test substance is all high boiling.Mixed for preparing
Close the high-purity raw of the calibrating gas of volatile organic matter, be the most all liquid.And this calibrating gas is waved
The organic concentration of the property sent out is all the lowest, it is impossible to as gaseous feed, first being weighed by empty bottle, component claims after being filled with gas cylinder again
Weight, by the difference of twice weighing value of front and back, calculates the amount being filled with component.
But, existing mixed gas preparation facilities can only prepare mixed volatilization Organic substance by traditional weighing technique
Calibrating gas, such as the preparation of toluene (50ppm) calibrating gas in nitrogen, concrete preparation process is: (1) takes one and treats gas filling bottle
(8L), the most through 80 DEG C of high-temperature bakings evacuation pretreatment in more than 8 hours；(2) weigh on electronic balance, record reading
9145.3g；(3) will treat that gas filling bottle accesses mixed gas preparation facilities, device for opening is filled with toluene 10g；(4) shutoff device, tears open
Lower gas cylinder, weighs, and records reading 9155.4g；(5) by gas cylinder access device, device for opening is filled with nitrogen 27.6g；(6) dress is closed
Put, pull down gas cylinder, weigh, record reading 9183.0g；(7) with toluene calibrating gas in above-mentioned 10.01% prepared nitrogen through secondary
Dilution, toluene calibrating gas in available 50ppm nitrogen.But, step (3) if in toluene amount to be added less than 10g, then claim
Amount error increases, and causes the uncertainty of calibrating gas to become big, and the market competitiveness declines.And, want being filled with nitrogen when
Controlling to be filled with the amount of nitrogen as far as possible, if being filled with too much nitrogen, then the dividing potential drop of toluene can be caused to exceed saturated vapor pressure and liquefy.
Therefore, use existing mixed gas preparation facilities to prepare the not only operating process of such calibrating gas cumbersome, and
And be difficult to prepare the calibrating gas that accuracy is higher.
Utility model content
This utility model provides a kind of liquid material sampling device prepared for calibrating gas, and this device can be accurately
Add volatile organic matter, such calibrating gas that preparation accuracy is higher.
In order to achieve the above object, this utility model provides a kind of liquid material sample introduction dress prepared for calibrating gas
Putting, this device connects mixed gas preparation facilities, and this sampling device comprises the bottle of gas filling bottle, electronic balance, also bag and gas filling bottle
Valve inlet connect containing injector.
Described injector comprises syringe, entry needle and rubber stopper, and wherein entry needle is arranged on the end of syringe, institute
The rubber stopper seal stated is arranged on the cylinder valve entrance of gas filling bottle, and described entry needle inserts rubber stopper, and syringe needle position is exposed to be filled
In gas cylinder.
Described injector is placed on electronic balance.
Described mixed gas preparation facilities is used for liquid material sampling device prepared by calibrating gas by inflation with this
The cylinder valve entrance of bottle connects.
Described syringe is medical glass syringe.
Described entry needle has stainless pin head.
The external diameter of described rubber stopper is suitable with the internal diameter of gas filling bottle cylinder valve entrance.
The sensibility reciprocal of described electronic balance is 0.1mg, and maximum capacity value is 200g.
A kind of liquid material sampling device prepared for calibrating gas that this utility model provides, this sampling device connects
Mixed gas preparation facilities, solves the problem being difficult to precisely prepare the organic calibrating gas of mixed volatilization, it is achieved that high
Accuracy prepares such calibrating gas, compared with traditional gas preparation facilities, has the advantage that
Utilize existing mixed gas preparation facilities, by being provided with injector so that add the volatility in gas filling bottle organic
The amount of thing is more accurate；The electronic balance that injector uses sensibility reciprocal to be 0.1mg weighs, and improves degree of accuracy；This device can
Meet required standard gas once directly to prepare, need not dilute, fast and convenient, with short production cycle；This device prepares standard
During gas, the amount of the volatilization gas of addition is little, will not liquefy because being filled with too much gas.
Accompanying drawing explanation
The structural representation of the liquid material sampling device that Fig. 1 is prepared for a kind of calibrating gas that this utility model provides.
The injector of the liquid material sampling device that Fig. 2 is prepared for a kind of calibrating gas that this utility model provides and electronics
The structural representation of balance.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical solution of the utility model is described further.
As it is shown in figure 1, a kind of liquid material sampling device prepared for calibrating gas that this utility model provides, this dress
Putting connection mixed gas preparation facilities, this sampling device comprises: gas filling bottle 10, electronic balance 20 and the cylinder valve with gas filling bottle 10 enter
The injector 30 that mouth connects.
As in figure 2 it is shown, injector 30 comprises syringe 31, entry needle 32 and rubber stopper 33, wherein entry needle 32 is arranged on
The end of syringe 31, described rubber stopper 33 is sealingly disposed in the cylinder valve entrance of gas filling bottle 10, and described entry needle 32 inserts
Rubber stopper 33, syringe needle position is exposed in gas filling bottle 10.
Injector 30 is placed on electronic balance 20.
Mixed gas preparation facilities is used for liquid material sampling device prepared by calibrating gas by gas filling bottle 10 with this
Cylinder valve entrance connects.
Syringe 31 is medical glass syringe.
Entry needle 32 has rustless steel syringe needle.
The external diameter of rubber stopper 33 is suitable with the internal diameter of gas filling bottle 10 cylinder valve entrance, it is ensured that the sealing effect of gas filling bottle 10
Really.
The sensibility reciprocal of electronic balance 20 is 0.1mg, and maximum capacity value is 200g, and the volatility that can weigh liquid accurately has
Machine thing.
This specifically used method being used for liquid material sampling device prepared by calibrating gas is as follows:
Preparing as a example by toluene in nitrogen (50ppm) calibrating gas by this device, preparation process is specific as follows:
Step 1: take one and treat gas filling bottle 10(8L), the most through 80 DEG C of high-temperature bakings evacuation pretreatment in more than 8 hours；
Step 2: by syringe 31(1ml), entry needle 32, rubber stopper 33 be combined into injector 30；
Step 3: extract about 0.18ml toluene in the container filling toluene (analytical pure) solution with injector 30；
Step 4: be placed on the electronic balance 20 of 0.1mg sensibility reciprocal by injector 30 and weigh, records reading: 106.3751g；
Step 5: tightly being inserted by injector 30 and treat gas filling bottle 10 cylinder valve entrance, rubber stopper 33 has certain elasticity, can make into
Sample device 30 with treat gas filling bottle 10 cylinder valve entrance keep sealing state；
Step 6: open and treat gas filling bottle 10 cylinder valve, because of vacuum in bottle, the liquid in syringe 31 can be automatically drawn into and fill
In the bottle of gas cylinder 10, and gasify, close cylinder valve；
Step 7: take off injector 30, then be put on the electronic balance of 0.1mg sensibility reciprocal and weigh, records reading:
106.2185g；
Step 8: will treat that gas filling bottle 10 accesses mixed gas preparation facilities, and be filled with nitrogen 952.0g；
Step 9: close mixed gas preparation facilities, take off gas filling bottle 10, filled.
In sum, this utility model, should for providing a kind of liquid material sampling device prepared for calibrating gas
Device is simple, connects mixed gas preparation facilities, it is possible to quickly prepare satisfactory calibrating gas, with short production cycle, and
Weighing precision is high, and the calibrating gas uncertainty of preparation is less, and the market competitiveness is higher.
Although content of the present utility model has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that
The description stated is not considered as restriction of the present utility model.After those skilled in the art have read foregoing, for
Multiple amendment of the present utility model and replacement all will be apparent from.Therefore, protection domain of the present utility model should be by appended
Claim limit.
Claims (6)
1. the liquid material sampling device prepared for calibrating gas, this device connects mixed gas preparation facilities, comprises
Gas filling bottle (10), electronic balance (20), it is characterised in that also comprise the injector that the cylinder valve entrance with gas filling bottle (10) is connected
(30)；
Described injector (30) comprises syringe (31), entry needle (32) and rubber stopper (33), and wherein entry needle (32) is arranged
In the end of syringe (31), described rubber stopper (33) is sealingly disposed in the cylinder valve entrance of gas filling bottle (10), described injection
Pin (32) inserts rubber stopper (33), and syringe needle position is exposed in gas filling bottle (10)；
Described injector (30) is placed on electronic balance (20).
The liquid material sampling device prepared for calibrating gas the most according to claim 1, it is characterised in that described
Mixed gas preparation facilities is used for liquid material sampling device prepared by calibrating gas with this and is entered by the cylinder valve of gas filling bottle (10)
Mouth connects.
The liquid material sampling device prepared for calibrating gas the most according to claim 1, it is characterised in that described
Syringe (31) is medical glass syringe.
The liquid material sampling device prepared for calibrating gas the most according to claim 1, it is characterised in that described
Entry needle (32) has rustless steel syringe needle.
The liquid material sampling device prepared for calibrating gas the most according to claim 1, it is characterised in that described
The external diameter of rubber stopper (33) is suitable with the internal diameter of gas filling bottle (10) cylinder valve entrance.
The liquid material sampling device prepared for calibrating gas the most according to claim 1, it is characterised in that described
The sensibility reciprocal of electronic balance (20) is 0.1mg, and maximum capacity value is 200g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620826299.0U CN205844022U (en) | 2016-08-02 | 2016-08-02 | A kind of liquid material sampling device prepared for calibrating gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620826299.0U CN205844022U (en) | 2016-08-02 | 2016-08-02 | A kind of liquid material sampling device prepared for calibrating gas |
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| Publication Number | Publication Date |
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| CN205844022U true CN205844022U (en) | 2016-12-28 |
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| CN201620826299.0U Active CN205844022U (en) | 2016-08-02 | 2016-08-02 | A kind of liquid material sampling device prepared for calibrating gas |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769369A (en) * | 2016-12-07 | 2017-05-31 | 中国计量科学研究院 | Prepare container, the device and method of the organic mixed solution standard substance of volatility |
| CN107917831A (en) * | 2017-12-27 | 2018-04-17 | 上海神开气体技术有限公司 | A kind of simple apparatus and method for preparing VOC gas |
| CN109781896A (en) * | 2019-03-07 | 2019-05-21 | 西北大学 | A kind of analysis method of standard series and gaseous sample based on internal standard method |
| CN111068574A (en) * | 2018-10-18 | 2020-04-28 | 中国石油天然气股份有限公司 | Volatile liquid mixing device, mixing and weighing device and weighing method |
-
2016
- 2016-08-02 CN CN201620826299.0U patent/CN205844022U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769369A (en) * | 2016-12-07 | 2017-05-31 | 中国计量科学研究院 | Prepare container, the device and method of the organic mixed solution standard substance of volatility |
| CN106769369B (en) * | 2016-12-07 | 2019-06-04 | 中国计量科学研究院 | Prepare container, the device and method of the organic mixed solution standard substance of volatility |
| CN107917831A (en) * | 2017-12-27 | 2018-04-17 | 上海神开气体技术有限公司 | A kind of simple apparatus and method for preparing VOC gas |
| CN111068574A (en) * | 2018-10-18 | 2020-04-28 | 中国石油天然气股份有限公司 | Volatile liquid mixing device, mixing and weighing device and weighing method |
| CN109781896A (en) * | 2019-03-07 | 2019-05-21 | 西北大学 | A kind of analysis method of standard series and gaseous sample based on internal standard method |
| CN109781896B (en) * | 2019-03-07 | 2022-06-17 | 西北大学 | Standard series and gas sample analysis method based on internal standard method |
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| GR01 | Patent grant |