CN103899908A - Gas flow fixing device and manufacturing method thereof - Google Patents
Gas flow fixing device and manufacturing method thereof Download PDFInfo
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- CN103899908A CN103899908A CN201410067515.3A CN201410067515A CN103899908A CN 103899908 A CN103899908 A CN 103899908A CN 201410067515 A CN201410067515 A CN 201410067515A CN 103899908 A CN103899908 A CN 103899908A
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- capillary tube
- gas
- fixing device
- flow fixing
- flow
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Abstract
The invention relates to a gas capillary tube flow fixing device and a manufacturing method thereof, and belongs to the field of gas flow fixing. According to rated pressure and flow, the inner diameter and the length of a capillary tube are selected, then the capillary tube is coiled and sealed in a metal pipe through sealants, and the air inlet end and the air outlet end of the capillary tube are exposed. Compared with the prior art, the gas capillary tube flow fixing device has the advantages that materials are simple and easy to obtain, special devices are not needed, process is simple, precision is high, the gas capillary tube flow fixing device can not be easily blocked, cost is low, and the gas capillary tube flow fixing device is used for fixed-flow supply and release of gas.
Description
Technical field
The present invention relates to a kind of gas constant flow device and manufacture method, especially a kind of capillary tube constant flow device and manufacture method.
Background technique
Gas constant flow device is conventional nearly two kinds: the one, glass capillary type, the capillary tube that the glass tube part of a bit of Φ 1 ~ Φ 3mm is pulled into internal diameter 1um left and right is made, uninterrupted is determined by internal diameter capillaceous; The 2nd, metal crimp flat type, maybe can cut down pipe (permivar) by the oxygen-free copper pipe of Φ 4 × 0.1mm or Monel pipe (monel) flattening is made, and uninterrupted is determined by the gap after flattening.All more complicated of its manufacture method: first, composition to materials, tensile strength, toughness, hardness etc. require high; Secondly, need special device, such as equipment such as trombone slide, extruding, heat treatments; The 3rd, complex process, such as annealing temperature, holding time etc.; The 4th, because internal diameter is all generally micron order, control difficulty large, accuracy of manufacturing is lower; The 5th, due to internal diameter or gap very little, easily blockage phenomenon; The 6th, cost is high.
Summary of the invention
In order to overcome the deficiency of existing gas constant flow device itself and manufacture method, the invention provides a kind of constant flow device and manufacture method, especially capillary tube constant flow device and a manufacture method, have materials simple and easy to get, without special device, the feature such as technique is simple, precision is high, be difficult for stopping up, cost is low.
The technological scheme that technical solution problem of the present invention is taked is: according to rated pressure and flow, according to posterior infromation, select internal diameter capillaceous and length, then capillary tube is coiled in together, again with sealer by capillary seal in metal tube, expose inlet end capillaceous and outlet side.
The maximum difference of the present invention and prior art is: flow is controlled in prior art internal diameter or gap, and the present invention is with length control flow.It is large that prior art becomes the nature difficulty that diminishes greatly on micron-sized hole, and that the present invention controls flow in the length of thousands of millimeters is simple and convenient.Such as, rated pressure 300kPa, the flow of the constant flow device that the capillary tube of the long 3500mm of internal diameter 0.08mm is made is 5cc/min, and the flow of the constant flow device that the capillary tube of the long 3250mm of internal diameter 0.08mm is made is 5.3cc/min.
The invention has the beneficial effects as follows: first, materials are simple and easy to get, capillary tube can be selected the finished product capillary tube that can buy on market, and material can be selected state metal plastics or soft; Secondly, do not need special device, do not need special processing, only need simple assembling; The 3rd, only capillary tube need be coiled in together, be sealed in metal tube special-less process; The 4th, capillary pipe length generally reaches thousands of millimeters, adjusts length by grade, can accurately control the size of flow, and than pressing, internal diameter size control uninterrupted is simple and easy to do, and precision is high; The 5th, due to internal diameter capillaceous used than prior art large tens times, reduce blocking phenomenon; The 6th, cost is low.
Claims (2)
1. a manufacture method for gas capillary tube constant flow device, is characterized in that capillary tube to be coiled in together, with sealer by capillary seal in metal tube, expose inlet end capillaceous and outlet side.
2. a capillary tube gas constant flow device, is characterized in that capillary tube to be coiled in together, with sealer by capillary seal in metal tube, expose inlet end capillaceous and outlet side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067515.3A CN103899908A (en) | 2014-02-27 | 2014-02-27 | Gas flow fixing device and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067515.3A CN103899908A (en) | 2014-02-27 | 2014-02-27 | Gas flow fixing device and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103899908A true CN103899908A (en) | 2014-07-02 |
Family
ID=50991407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410067515.3A Pending CN103899908A (en) | 2014-02-27 | 2014-02-27 | Gas flow fixing device and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899908A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109485012A (en) * | 2018-12-07 | 2019-03-19 | 合肥工业大学 | A kind of referance leak encapsulating method based on glass paste |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE480236C (en) * | 1928-07-25 | 1929-10-04 | Askania Werke A G Vormals Cent | Capillary throttle for flow meter |
| US20090056130A1 (en) * | 2007-08-31 | 2009-03-05 | Ross David A | Flow meter for measuring a flow rate of a flow of a fluid |
| CN202869563U (en) * | 2012-07-06 | 2013-04-10 | 中国航空工业集团公司西安飞机设计研究所 | Coil type lamellar flow measuring device |
| CN203405748U (en) * | 2013-08-14 | 2014-01-22 | 上海舜宇恒平科学仪器有限公司 | Gas sample introduction flow control system of mass spectrometer |
| CN203479342U (en) * | 2013-08-07 | 2014-03-12 | 陕西天仪智能仪表有限公司 | Gas flowmeter |
-
2014
- 2014-02-27 CN CN201410067515.3A patent/CN103899908A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE480236C (en) * | 1928-07-25 | 1929-10-04 | Askania Werke A G Vormals Cent | Capillary throttle for flow meter |
| US20090056130A1 (en) * | 2007-08-31 | 2009-03-05 | Ross David A | Flow meter for measuring a flow rate of a flow of a fluid |
| CN202869563U (en) * | 2012-07-06 | 2013-04-10 | 中国航空工业集团公司西安飞机设计研究所 | Coil type lamellar flow measuring device |
| CN203479342U (en) * | 2013-08-07 | 2014-03-12 | 陕西天仪智能仪表有限公司 | Gas flowmeter |
| CN203405748U (en) * | 2013-08-14 | 2014-01-22 | 上海舜宇恒平科学仪器有限公司 | Gas sample introduction flow control system of mass spectrometer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109485012A (en) * | 2018-12-07 | 2019-03-19 | 合肥工业大学 | A kind of referance leak encapsulating method based on glass paste |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140702 |
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| RJ01 | Rejection of invention patent application after publication |