CN105204532A - Gas flow control device for ion mobility spectrometry - Google Patents
Gas flow control device for ion mobility spectrometry Download PDFInfo
- Publication number
- CN105204532A CN105204532A CN201410274297.0A CN201410274297A CN105204532A CN 105204532 A CN105204532 A CN 105204532A CN 201410274297 A CN201410274297 A CN 201410274297A CN 105204532 A CN105204532 A CN 105204532A
- Authority
- CN
- China
- Prior art keywords
- hole
- flow
- limiting valve
- ion mobility
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
A gas flow control device for an ion mobility spectrometry is designed in the invention. The device mainly comprises a limiting valve module and a differential pressure type flow sensor module. The working principle of the device is that carrier gas and drift gas in the ion mobility spectrometry flow into the limiting valve module, different air pressures in a valve are caused by different diameters in a regulation valve, and gas pressure data is collected by the differential pressure type flow sensor module.
Description
Technical field
The present invention relates to gasmetry instrument, tool fallow land says it is a kind of gas flow control device for ion mobility spectrometry.
Background technology
Gas Flowrate Control System is one of important component part in ion mobility spectrometry instrument, and carrier gas, drift airshed directly have influence on the performance of ion mobility spectrometry.Normally used spinner-type flowmeter volume is large, and weight is relatively heavier, and degree of accuracy is relatively low, greatly has influence on the stability of ion mobility spectrometry detection and the convenience of instrument use.
Summary of the invention
The object of the invention is a kind of gas flow control device for ion mobility spectrometry.
For a gas flow control device for ion mobility spectrometry, comprising: flow-limiting valve module and differential pressure flow sensor module;
Flow-limiting valve module is made up of flow-limiting valve and flow-limiting valve joint;
Flow-limiting valve is a square block structure, the parallel through hole offering two through square block left and right biends on square block;
Article two, through hole is divided into left side circular hole, mider hole and right side circular hole three part from left to right, and the effective diameter of mider hole is less than the diameter of left side circular hole and right side circular hole;
The upper end through hole as Measurement channel offered respectively between the mider hole and square block upper surface of two through holes; The upper end through hole as Measurement channel is offered respectively between the right side circular hole and square block upper surface of two through holes; Article two, left and right two end of through hole is respectively with internal thread, and in two through holes, the female zone length of left end band is less than the female zone length of right-hand member band; Right-hand member is inlet end, and left end is outlet side; Article two, left and right two end of through hole is screwed with quick union respectively; Article one, through hole is as carrier gas passage, and another through hole is as drift gas passage; Carrier gas part is respectively independent sector with drift gas part, is not communicated with mutually.
Flow-limiting valve joint is the pipe of an inner band through hole, and the lower external face of pipe is provided with external thread, and upper end through hole is the female hole of band, is screwed with flow-limiting valve joint in the through hole of upper end; The outer surface of upper of pipe is radially provided with hexagon projection; Measurement pipeline one end for silicone tube, four fluorine tube or stainless-steel tube is socketed in the round dop in upper end of flow-limiting valve joint, measures the pipeline other end and is socketed on a round dop of differential pressure flow sensor.
Differential pressure flow sensor module is primarily of two differential pressure flow sensors and measure pipeline formation;
Two gasmetry mouths on each differential pressure flow sensor are connected with two the flow-limiting valve upper end of joint be installed on the same through hole of square block by measuring pipeline respectively.
A kind of gas flow control device for ion mobility spectrometry reaches by the cooperation of flow-limiting valve module and differential pressure flow sensor module the object controlling flow.
Clear in structure of the present invention, process easy for installation, volume is little, lightweight, control feature easily.
Accompanying drawing explanation
Fig. 1 flow-limiting valve modular structure schematic diagram;
A kind of gas flow control device for ion mobility spectrometry of Fig. 2.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail.
As shown in Figure 1, a kind of gas flow control device for ion mobility spectrometry, a kind of gas flow control device for ion mobility spectrometry, comprising: flow-limiting valve module 12 and differential pressure flow sensor module;
Flow-limiting valve module is made up of flow-limiting valve 4 and flow-limiting valve joint 5;
Flow-limiting valve 4 is a square block structure, the parallel through hole offering two through square block left and right biends on square block;
Article two, through hole is divided into left side circular hole 1, mider hole 2 and right side circular hole 3 three part from left to right, and the effective diameter of mider hole 2 is less than the diameter of left side circular hole 1 and right side circular hole 3;
The upper end through hole 6 as Measurement channel offered respectively between the mider hole and square block upper surface of two through holes; The upper end through hole 7 as Measurement channel is offered respectively between the right side circular hole and square block upper surface of two through holes; Article two, left and right two end of through hole is respectively with internal thread, and in two through holes, the female zone length of left end band is less than the female zone length of right-hand member band; Right-hand member is inlet end, and left end is outlet side; Article two, left and right two end of through hole is screwed with quick union respectively; Article one, through hole is as carrier gas passage, and another through hole is as drift gas passage; Carrier gas part is respectively independent sector with drift gas part, is not communicated with mutually.
Flow-limiting valve joint is the pipe of an inner band through hole, and the lower external face of pipe is provided with external thread, and upper end through hole is the female hole of band, is screwed with flow-limiting valve joint in the through hole of upper end; The outer surface of upper of pipe is radially provided with hexagon projection; Measurement pipeline 11 one end for silicone tube, four fluorine tube or stainless-steel tube is socketed in the round dop in upper end of flow-limiting valve joint 5, measures the pipeline other end and is socketed on a round dop of differential pressure flow sensor 10.
Differential pressure flow sensor module is primarily of two differential pressure flow sensors and measure pipeline formation;
Two gasmetry mouths on each differential pressure flow sensor are connected with two the flow-limiting valve upper end of joint be installed on the same through hole of square block by measuring pipeline respectively.
Claims (7)
1. for a gas flow control device for ion mobility spectrometry, comprising: flow-limiting valve module and differential pressure flow sensor module;
Flow-limiting valve module is made up of flow-limiting valve and flow-limiting valve joint;
Flow-limiting valve is a square block structure, the parallel through hole offering two through square block left and right biends on square block;
Article two, through hole is divided into left side circular hole, mider hole and right side circular hole three part from left to right, and the effective diameter of mider hole is less than the diameter of left side circular hole and right side circular hole;
The upper end through hole as Measurement channel offered respectively between the mider hole and square block upper surface of two through holes; The upper end through hole as Measurement channel offered respectively between the right side circular hole and square block upper surface of two through holes;
Flow-limiting valve joint is the pipe of an inner band through hole, and the lower external face of pipe is provided with external thread, and upper end through hole is the female hole of band, is screwed with flow-limiting valve joint in the through hole of upper end;
Differential pressure flow sensor module is primarily of two differential pressure flow sensors and measure pipeline formation;
Two gasmetry mouths on each differential pressure flow sensor are connected with two the flow-limiting valve upper end of joint be installed on the same through hole of square block by measuring pipeline respectively.
2. the gas flow control device for ion mobility spectrometry according to claim 1, is characterized in that:
Flow-limiting valve joint is the pipe of an inner band through hole, and the outer surface of upper of pipe is radially provided with hexagon projection; Measure the round dop in upper end that pipeline one end is socketed in flow-limiting valve joint.
3. the gas flow control device for ion mobility spectrometry according to claim 2, is characterized in that:
Measure pipeline one end to be socketed on a round dop of differential pressure flow sensor.
4. the gas flow control device for ion mobility spectrometry according to claim 1, is characterized in that:
Flow-limiting valve joint is the pipe of an inner band through hole, and the outer surface of upper of pipe is radially provided with hexagon projection.
5. the gas flow control device for ion mobility spectrometry according to claim 1, is characterized in that:
Article two, left and right two end of through hole is screwed with quick union respectively; Article one, through hole is as carrier gas passage, and another through hole is as drift gas passage; Carrier gas part is respectively independent sector with drift gas part, is not communicated with mutually.
6. the gas flow control device for ion mobility spectrometry according to claim 5, is characterized in that:
Article two, left and right two end of through hole is respectively with internal thread, and in two through holes, the female zone length of left end band is less than the female zone length of right-hand member band; Right-hand member is inlet end, and left end is outlet side.
7. the gas flow control device for ion mobility spectrometry according to claim 1, is characterized in that: measurement pipeline is silicone tube, four fluorine tube stainless-steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274297.0A CN105204532A (en) | 2014-06-18 | 2014-06-18 | Gas flow control device for ion mobility spectrometry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410274297.0A CN105204532A (en) | 2014-06-18 | 2014-06-18 | Gas flow control device for ion mobility spectrometry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105204532A true CN105204532A (en) | 2015-12-30 |
Family
ID=54952273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410274297.0A Pending CN105204532A (en) | 2014-06-18 | 2014-06-18 | Gas flow control device for ion mobility spectrometry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105204532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144923A1 (en) * | 2018-01-25 | 2019-08-01 | 清华大学 | Gas path flow monitoring apparatus and method for ion mobility spectrometer |
| CN112747182A (en) * | 2019-10-29 | 2021-05-04 | 兴中环保科技股份有限公司 | Square rotary joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338546A (en) * | 1995-06-12 | 1996-12-24 | Fujikin:Kk | Pressure type flow control device |
| CN202033061U (en) * | 2010-12-13 | 2011-11-09 | 吕志宝 | Gas flow measuring apparatus |
| CN202066534U (en) * | 2011-05-06 | 2011-12-07 | 宜宾机电一体化研究所 | Pressure guiding device of throttling device of standard orifice plate of non-pressure-guiding pipeline |
| CN103175887A (en) * | 2011-12-20 | 2013-06-26 | 中国科学院大连化学物理研究所 | External connection gas source and ion mobility spectrometry combination system |
-
2014
- 2014-06-18 CN CN201410274297.0A patent/CN105204532A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08338546A (en) * | 1995-06-12 | 1996-12-24 | Fujikin:Kk | Pressure type flow control device |
| CN202033061U (en) * | 2010-12-13 | 2011-11-09 | 吕志宝 | Gas flow measuring apparatus |
| CN202066534U (en) * | 2011-05-06 | 2011-12-07 | 宜宾机电一体化研究所 | Pressure guiding device of throttling device of standard orifice plate of non-pressure-guiding pipeline |
| CN103175887A (en) * | 2011-12-20 | 2013-06-26 | 中国科学院大连化学物理研究所 | External connection gas source and ion mobility spectrometry combination system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019144923A1 (en) * | 2018-01-25 | 2019-08-01 | 清华大学 | Gas path flow monitoring apparatus and method for ion mobility spectrometer |
| CN112747182A (en) * | 2019-10-29 | 2021-05-04 | 兴中环保科技股份有限公司 | Square rotary joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2011109233A3 (en) | Flow restriction insert for differential pressure measurement | |
| CA2935963A1 (en) | Improvements to aspirated sampling systems | |
| WO2011119348A3 (en) | Pressure sensing system and method | |
| WO2008058872A3 (en) | Device for measuring the total pressure of a flow and method using said device | |
| RU2016116272A (en) | FLOW MEASUREMENT DEVICE BASED ON DIFFERENTIAL PRESSURE WITH THE IMPROVED CONFIGURATION OF THE BEER PIPE | |
| MY183473A (en) | Dual differential pressure multiphase flow meter | |
| MA32348B1 (en) | Differential pressure gauge | |
| MX370132B (en) | Discharge coefficient determination of a managed pressure drilling choke/valve. | |
| GB2536182A (en) | System for fluid redistribution | |
| JP2014137275A5 (en) | ||
| WO2013134642A3 (en) | Venturi valve and control system | |
| WO2015188039A3 (en) | Fluid regulator having a biased pressure sense tube | |
| MX2016007731A (en) | Tool for purging fluid from a pipe. | |
| CN105204532A (en) | Gas flow control device for ion mobility spectrometry | |
| CN203585695U (en) | Wind pipe assembly and pressure measuring device thereof | |
| EP4219011A3 (en) | In-situ fluidic inspection | |
| CN105699688B (en) | A kind of measuring device and method of fluid flow rate and flow | |
| CN105135218A (en) | Fuel gas leakage alarm device | |
| WO2018042462A3 (en) | Device for measuring respiratory parameters of a patient | |
| CN203742578U (en) | Oil-gas-water three-phase high-rotational-flow respective measurement device | |
| CN105065919A (en) | Natural gas pipeline leakage detecting device | |
| WO2016067304A3 (en) | Flow control valve | |
| WO2019101270A3 (en) | Differential pressure sensing system, pipe unit, use of a pipe unit, heat distribution system, use of a heat distribution system and methods | |
| CN208845737U (en) | A kind of pulse damper | |
| CN203069318U (en) | Uniform-pressure sleeve for static pressure measurement of pipe cross section |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151230 |
|
| WD01 | Invention patent application deemed withdrawn after publication |