CN208721468U - A kind of Multipurpose gas detector sampling system - Google Patents
A kind of Multipurpose gas detector sampling system Download PDFInfo
- Publication number
- CN208721468U CN208721468U CN201821373962.1U CN201821373962U CN208721468U CN 208721468 U CN208721468 U CN 208721468U CN 201821373962 U CN201821373962 U CN 201821373962U CN 208721468 U CN208721468 U CN 208721468U
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- China
- Prior art keywords
- valve
- triple valve
- sample introduction
- air inlet
- sampling system
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Abstract
A kind of Multipurpose gas detector sampling system, including having the five-way valve there are four sample introduction connecting pin, first input end of the outlet end connection triple valve of five-way valve, the second input end of triple valve are separately connected one end and the second air inlet pipe of deoxidation pipe, and the other end of deoxidation pipe connects the first air inlet pipe；The outlet end of triple valve is connected by needle valve into instrument pipeline；It in use, triple valve is switched to gas reference material sample introduction direction, can allow instrument and meter to be checked since zero point, utilize the point-by-point testing calibration of the switching of five-way valve 1；The utility model has the influence that not will receive outside air, reaches detection quickly, and measurement repdocutbility is high, and gas selects flexible advantage.
Description
Technical field
The utility model relates to gas detecting instrument, in particular to a kind of Multipurpose gas detector assay calibration fast sample
System.
Background technique
At present in a variety of vertification regulations and calibrating standard used in gas analyzer assay calibration, all to sampler
Air circuit connection is required, but lacking a kind of equipment can be with pervasive a variety of vertification regulations and calibrating standard requirement.And in mesh
In preceding existing similar device, some specific analyzers are still not up to Regulations requirement, and there is flow
Control inaccuracy, measurement repdocutbility is poor and is easy the problem of being mixed into foreign gas.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a kind of Multipurpose gas detector sample introduction system
System, can effectively prevent air influences gas switching bring, meets various gas analyzer vertification regulations or school
Quantity and mode a little is examined and determine in quasi- specification.
In order to achieve the above object, the technical solution of the use of the utility model are as follows:
A kind of Multipurpose gas detector sampling system, including having the five-way valve 1 there are four sample introduction connecting pin, five-way valve 1
Outlet end connection triple valve 2 the first input end, the second input end of triple valve 2 is separately connected one end and the of deoxidation pipe 3
The other end of the outlet of two air inlet pipe 7, deoxidation pipe 3 connects the first air inlet pipe 8；The outlet end of triple valve 2 is connected by needle valve 4
Into instrument pipeline 6.
Further, valve is provided between the other end of the deoxidation pipe 3 and the first air inlet pipe 8.
Further, between first air inlet pipe 8 and the second input end of triple valve 2 and the second air inlet pipe 7 with
Check valve is separately installed between second input end of triple valve 2.
Further, the outlet end of the triple valve 2 is separately connected the bypass stream with flow adjustment knob by needle valve 4
One end of one end of meter 9 and the sample introduction flowmeter 10 with flow adjustment knob；The other end of bypass flow meter 9 connects blow-down pipe
Road；The other end of sample introduction flowmeter 10 is connected into instrument pipeline 6.
Further, the outlet end of the bypass flow meter 9 is provided with check valve.
The utility model has the beneficial effects that
There are four sample introduction connecting pin and one outlet ends for the tool of the utility model five-way valve 1, and four sample introduction ends can connect four
Kind calibrating gas substance air inlet pipe, the conversion of five-way valve 1 can quickly carry out multimetering and calibration to instrument and meter；Five-way valve
1 selects the switching of a kind of calibrating gas substance and zero gas using the threeway Vavle switching of subsequent gas circuit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
Shown in referring to Fig.1, a kind of Multipurpose gas detector sampling system, including having, there are four the five of sample introduction connecting pin to lead to
Valve 1, the first input end of the outlet end connection triple valve 2 of five-way valve 1, the second input end of triple valve 2 are separately connected deoxidation pipe 3
One end and air intake duct 7 gas outlet, the other end of deoxidation pipe 3 connects nitrogen inlet duct 8；Nitrogen inlet duct 8 and threeway
It is separately installed with check valve between second input end of valve 2 and between air intake duct 7 and the second input end of triple valve 2,
It can guarantee that two-way gas will not generate cross influence in the case where exempting manual switching；The outlet end of the triple valve 2 passes through
Needle valve 4 is separately connected one end of bypass flow meter 9 and one end of sample introduction flowmeter 10；The other end of bypass flow meter 9 connects
Blowdown piping；The other end of sample introduction flowmeter 10 is connected into instrument pipeline 6, is used to the sample introduction flow control of tested instrument and equipment
The adjusting knob of one sample introduction flowmeter and a bypass flow meter controls.When sample introduction flow meets the stream of tested instrument and equipment
When amount requires, extra gas can be vented by bypass flow meter.Check valve is installed at emptying, atmospheric reflux is avoided to enter device
To pollute sample introduction gas circuit.
Working principle of the utility model is:
There are four sample introduction connecting pin and one outlet ends for the tool of five-way valve 1.Four sample introduction ends can at most connect four kinds of standards
Gaseous matter air inlet pipe, triple valve 2 after the connection of outlet end.
Zero gas is accessed from air inlet 7 or nitrogen inlet 8.
Required gas reference material is first respectively connected to the sample introduction end of five-way valve, zero point before detecting instrument by system
Gas selects access air inlet 7 or nitrogen inlet 8 on demand.And open bypass flow meter 9 and sample introduction flowmeter 10
Triple valve 2 is switched to gas reference material sample introduction direction by flow adjustment knob.
It is gradually passed through in this system and is purged first with the switching of five-way valve 1 after gas reference material is opened, led to
It is not too big to cross the control purge flow rate of needle valve 4.After to 1 blowing of five-way valve, triple valve 2 is switched to zero gas side
To being purged again.Instrument and meter to be checked is accessed into instrument pipeline 6 at this time, can be purged together.
After the completion of zero point purging, triple valve 2 is switched to gas reference material sample introduction direction, can be allowed to test examination instrument instrument
Table utilizes the point-by-point testing calibration of the switching of five-way valve 1 since zero point.Therefore this system not will receive the influence of outside air,
Reach detection quickly, measurement repdocutbility is high, and gas selects flexible feature.
Claims (5)
1. a kind of Multipurpose gas detector sampling system, which is characterized in that including having the five-way valve there are four sample introduction connecting pin
(1), the first input end of outlet end connection triple valve (2) of five-way valve (1), the second input end of triple valve (2) are separately connected
The other end of one end of deoxidation pipe (3) and the outlet of the second air inlet pipe (7), deoxidation pipe (3) connects the first air inlet pipe (8)；Threeway
The outlet end of valve (2) is connected by needle valve (4) into instrument pipeline (6).
2. a kind of Multipurpose gas detector sampling system according to claim 1, which is characterized in that the deoxidation pipe
(3) valve is provided between the other end and the first air inlet pipe (8).
3. a kind of Multipurpose gas detector sampling system according to claim 1, which is characterized in that described first into
Second input end of between tracheae (8) and the second input end of triple valve (2) and the second air inlet pipe (7) and triple valve (2) it
Between be separately installed with check valve.
4. a kind of Multipurpose gas detector sampling system according to claim 1, which is characterized in that the triple valve
(2) outlet end is separately connected one end of the bypass flow meter (9) with flow adjustment knob and with flow tune by needle valve (4)
Save one end of the sample introduction flowmeter (10) of knob；The other end of bypass flow meter (9) connects blowdown piping；Sample introduction flowmeter (10)
The other end connect into instrument pipeline (6).
5. a kind of Multipurpose gas detector sampling system according to claim 4, which is characterized in that the bypass stream
The outlet end of meter (9) is provided with check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821373962.1U CN208721468U (en) | 2018-08-24 | 2018-08-24 | A kind of Multipurpose gas detector sampling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821373962.1U CN208721468U (en) | 2018-08-24 | 2018-08-24 | A kind of Multipurpose gas detector sampling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208721468U true CN208721468U (en) | 2019-04-09 |
Family
ID=65979324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821373962.1U Active CN208721468U (en) | 2018-08-24 | 2018-08-24 | A kind of Multipurpose gas detector sampling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208721468U (en) |
-
2018
- 2018-08-24 CN CN201821373962.1U patent/CN208721468U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200709 Address after: No.299, Gongye 2nd Road, Chang'an District, Xi'an City, Shaanxi Province Patentee after: Shaanxi Liyuan instrument and equipment testing Co., Ltd Address before: 710054 62 Building, 34 Youyi East Road, Beilin District, Xi'an City, Shaanxi Province Patentee before: Bai Fan |
|
| TR01 | Transfer of patent right |