CN209559912U - A kind of device for sampling quantitative gas capable of washing - Google Patents
A kind of device for sampling quantitative gas capable of washing Download PDFInfo
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- CN209559912U CN209559912U CN201920205227.8U CN201920205227U CN209559912U CN 209559912 U CN209559912 U CN 209559912U CN 201920205227 U CN201920205227 U CN 201920205227U CN 209559912 U CN209559912 U CN 209559912U
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Abstract
A kind of device for sampling quantitative gas capable of washing, including drying cylinder, 2 check valves, 4 reversal valves, 2 shut-off valves, 2 filters, throttle valve, heating unit, mass flow controller and Moisture Meter reaction tank, nitrogen inlet is connect with drying cylinder, first reversal valve respectively with the first shut-off valve, second shut-off valve, second reversal valve, throttle valve connection, first shut-off valve is connect with outlet, second shut-off valve is connect with colvent inlet, sample inlet is connect by first filter with the second reversal valve, throttle valve is connect with heating unit, heating unit and the second filtering connect, second filtering respectively with third reversal valve, the connection of 4th reversal valve, 4th reversal valve is connect with mass flow controller, mass flow controller is connect by second one-way valve with sample delivery outlet, sample delivery outlet is connect with Moisture Meter reaction tank.The present apparatus meet gasometry output sample introduction while, can detergent line at any time, avoid pipeline by pollution effect experimental result.
Description
Technical field
The utility model belongs to gas sample injection device, and in particular to a kind of device for sampling quantitative gas capable of washing.
Background technique
In Chemical Manufacture, the characteristics of hydro carbons or certain particular samples need to detect moisture, this kind of sample is water content
It is small, it needs to be gasificated into gas in the detection process with the presence of half liquid, half gaseity in the short time under room temperature and quantifies
Output.The sample composition of detection is complicated, has corrosivity, and boiling point is different, while its water content is again very small, some samples are most
Small moisture is even less than 5 PPM.So requiring the pipeline for participating in detection extremely stringent.
Existing gasometry sample injector, can complete heating and gasifying, quantitative output function.But make with instrument
It can be reacted and be generated in sticky substance delay pipe at high temperature with certain particular samples, sample gas or impurity are also had in pipeline
Residual pollutes pipeline, in addition, the residual of moisture can seriously affect test sample in pipeline, particularly with 10ppm or less minor amount of water
Point detection, when sample introduction again, sample is because pipeline is polluted, when causing sample to be passed through Moisture Meter to be analyzed, data
As a result incorrect, seriously affect the normal use of instrument.
Utility model content
The utility model overcomes the shortcomings of the prior art, and provides a kind of device for sampling quantitative gas capable of washing,
For the micro test containing water gas, while meeting gasometry output sample introduction, can detergent line at any time, avoid pipeline from meeting with
Contaminated influence experimental result.
Technology used by the utility model is as follows: a kind of device for sampling quantitative gas capable of washing, including drying cylinder, the
One check valve, the first reversal valve, the first shut-off valve, the second shut-off valve, first filter, the second reversal valve, throttle valve, heating are single
Member, the second filter, third reversal valve, the 4th reversal valve, mass flow controller, second one-way valve and Moisture Meter reaction tank,
Nitrogen inlet is connect with drying cylinder, and drying cylinder is connect by the first check valve with the first reversal valve, and the first reversal valve is respectively with the
One shut-off valve, the second shut-off valve, the second reversal valve, throttle valve connection, the first shut-off valve connect with outlet, the second shut-off valve and
Colvent inlet connection, sample inlet are connect by first filter with the second reversal valve, and throttle valve is connect with heating unit, heating
Unit and the second filtering connect, and the second filtering is connect with third reversal valve, the 4th reversal valve respectively, third reversal valve and outlet
Connection, the 4th reversal valve are connect with mass flow controller, and mass flow controller passes through second one-way valve and sample delivery outlet
Connection, sample delivery outlet are connect with Moisture Meter reaction tank.
The utility model further includes following technical characteristic:
1, in sample introduction, the first shut-off valve and the second shut-off valve are closed, the first reversal valve of switching switches third commutation to closing
Valve switches the 4th reversal valve to opening, is passed through sample by sample inlet to closing, through first filter, the second reversal valve, and throttle valve,
Heating unit, the second filter, the 4th reversal valve, mass flow controller, second one-way valve, into Moisture Meter reaction tank.
2, when detergent line, the first shut-off valve is closed, opens the second shut-off valve, the first reversal valve of switching is to opening, switching the
Three reversal valves are to opening, and to closing, pure nitrogen gas is entered the 4th reversal valve of switching by nitrogen inlet, by drying cylinder, the first check valve, the
Throttle valve, heating unit and the second filter are purged after one reversal valve, meanwhile, organic solvent is entered by colvent inlet,
It is added in pipeline-cleaning by the second shut-off valve.
The beneficial effects of the utility model and advantage are as follows: can prevent sample impurity from entering pipeline, sample when sample is made in guarantee
Product are stable and quantitative output.It, can be to be cleaned by organic solvent to pipeline, remove impurity if pipeline is polluted.
Purging is dried to pipeline again in dry nitrogen, High Quality Environment pipeline is provided to continue to be passed through other samples, to guarantee reality
It is accurate to test result.
Detailed description of the invention
Fig. 1 is present apparatus structural schematic block diagram；
Pipeline flow diagram when Fig. 2 is present apparatus sample introduction；
Fig. 3 is pipeline flow diagram when the present apparatus is cleaned；
Wherein A, nitrogen inlet, B, colvent inlet, C, sample inlet, D, outlet, E, sample delivery outlet, 1, drying cylinder,
2, the first check valve, the 3, first reversal valve, the 4, first shut-off valve, the 5, second shut-off valve, 6, first filter, the 7, second commutation
Valve, 8, throttle valve, 9, heating unit, the 10, second filter, 11, third reversal valve, the 12, the 4th reversal valve, 13, mass flow
Controller, 14, second one-way valve, 15, Moisture Meter reaction tank.
Specific embodiment
The utility model citing is described further below according to Figure of description:
Embodiment 1:
As shown in Figure 1, a kind of device for sampling quantitative gas capable of washing, including drying cylinder 1, the first check valve 2, first changes
To valve 3, the first shut-off valve 4, the second shut-off valve 5, first filter 6, the second reversal valve 7, throttle valve 8, heating unit 9, second
Filter 10, third reversal valve 11, the 4th reversal valve 12, mass flow controller 13, second one-way valve 14, Moisture Meter reaction tank
15, nitrogen inlet A is connect with drying cylinder 1, and drying cylinder 1 is connect by the first check valve 2 with the first reversal valve 3, the first reversal valve 3
It is connect respectively with the first shut-off valve 4, the second shut-off valve 5, the second reversal valve 7, throttle valve 8, the first shut-off valve 4 and outlet D connects
It connects, the second shut-off valve 5 is connect with colvent inlet B, and sample inlet C is connect by first filter 6 with the second reversal valve 7, is throttled
Valve 8 is connect with heating unit 9, and heating unit 9 10 connect with the second filtering, second filter 10 respectively with third reversal valve 11, the
The connection of four reversal valves 12, third reversal valve 11 are connect with outlet D, and the 4th reversal valve 12 is connect with mass flow controller 13,
Mass flow controller 13 is connect by second one-way valve 14 with sample delivery outlet E, sample delivery outlet E and Moisture Meter reaction tank 15
Connection；The effect of throttle valve 8 is, reduces pipeline air pressure, protects the second filter 10 and the mass flow in following gas circuit
Controller 13, the work of normal table.The effect of second filter 10 is, when sample since heating leads to pollution impurity occur
When the second filter 10 sample gas is filtered in time, while the impurity in solvent or purgative gas can also be filtered in detergent line
It removes.The sample entered by sample inlet C is filtered by first filter 6, can filter out the foreign matter that sample is brought into time.The
Two check valves 14 can be prevented due to draught head, and reagent falls suction line by Moisture Meter reaction tank 15.
As shown in Fig. 2, closing the first shut-off valve 4, the second shut-off valve 5 in sample introduction, switches the first reversal valve 3 to pass, cut
Third reversal valve 11 is changed to pass, switches the 4th reversal valve 12 to opening, sample is passed through by sample inlet C, through first filter 6, the
Two reversal valves 7, throttle valve 8, heating unit 9, the second filter 10, the 4th reversal valve 12, mass flow controller 13, second is single
To valve 14, sample delivery outlet E, into Moisture Meter reaction tank 15；After sample passes into filtering by sample inlet C, pass through throttling
Valve 8 carries out appropriate pressure-reducing cushioning, into heating unit 9, gasifies, and the sample of gasification passes through the progress of the second filter 10 again
Filtering carries out flow control by mass flow controller 13 and enters Moisture Meter by sample delivery outlet E by second one-way valve 14
Reaction tank 15.
As shown in figure 3, closing the first shut-off valve 4 when detergent line, the second shut-off valve 5 is opened, switches the first reversal valve 3
To opening, switching third reversal valve 11 switches the 4th reversal valve 12 to pass, pure nitrogen gas is entered by nitrogen inlet A, by drying to opening
Throttle valve 8, heating unit 9 and the second filter 10 are purged after the 1, first check valve 2 of cylinder, the first reversal valve 3, meanwhile,
Organic solvent is entered by colvent inlet B, is added in pipeline-cleaning by the second shut-off valve 5.
Claims (3)
1. a kind of device for sampling quantitative gas capable of washing, including drying cylinder, the first check valve, the first reversal valve, the first cut-off
Valve, the second shut-off valve, first filter, the second reversal valve, throttle valve, heating unit, the second filter, third reversal valve, the
Four reversal valves, mass flow controller, second one-way valve and Moisture Meter reaction tank, it is characterised in that:
Nitrogen inlet is connect with drying cylinder, and drying cylinder is connect by the first check valve with the first reversal valve, the first reversal valve difference
It is connect with the first shut-off valve, the second shut-off valve, the second reversal valve, throttle valve, the first shut-off valve is connect with outlet, the second cut-off
Valve is connect with colvent inlet, and sample inlet is connect by first filter with the second reversal valve, and throttle valve is connect with heating unit,
Heating unit and the second filtering connect, and the second filtering is connect with third reversal valve, the 4th reversal valve respectively, third reversal valve and row
Outlet connection, the 4th reversal valve are connect with mass flow controller, and mass flow controller is defeated by second one-way valve and sample
Outlet connection, sample delivery outlet are connect with Moisture Meter reaction tank.
2. one kind according to claim 1 device for sampling quantitative gas capable of washing, it is characterised in that: in sample introduction, close
The first shut-off valve and the second shut-off valve are closed, for the first reversal valve of switching to closing, switching third reversal valve switches the 4th reversal valve to closing
To opening, sample is passed through by sample inlet, through first filter, the second reversal valve, throttle valve, heating unit, the second filter,
Four reversal valves, mass flow controller, second one-way valve, into Moisture Meter reaction tank.
3. one kind according to claim 1 device for sampling quantitative gas capable of washing, it is characterised in that: when detergent line,
The first shut-off valve is closed, opens the second shut-off valve, for the first reversal valve of switching to opening, switching third reversal valve switches the 4th to opening
To closing, pure nitrogen gas enters reversal valve by nitrogen inlet, after drying cylinder, the first check valve, the first reversal valve to throttle valve plus
Hot cell and the second filter are purged, meanwhile, organic solvent is entered by colvent inlet, is added to pipe by the second shut-off valve
In the cleaning of road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205227.8U CN209559912U (en) | 2019-02-18 | 2019-02-18 | A kind of device for sampling quantitative gas capable of washing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920205227.8U CN209559912U (en) | 2019-02-18 | 2019-02-18 | A kind of device for sampling quantitative gas capable of washing |
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| Publication Number | Publication Date |
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| CN209559912U true CN209559912U (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920205227.8U Active CN209559912U (en) | 2019-02-18 | 2019-02-18 | A kind of device for sampling quantitative gas capable of washing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682986A (en) * | 2019-02-18 | 2019-04-26 | 哈尔滨天龙仪器制造有限公司 | A kind of device for sampling quantitative gas capable of washing |
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2019
- 2019-02-18 CN CN201920205227.8U patent/CN209559912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682986A (en) * | 2019-02-18 | 2019-04-26 | 哈尔滨天龙仪器制造有限公司 | A kind of device for sampling quantitative gas capable of washing |
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