CN103512775A - Dimethyl ether sampling switching device - Google Patents
Dimethyl ether sampling switching device Download PDFInfo
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- CN103512775A CN103512775A CN201310100475.3A CN201310100475A CN103512775A CN 103512775 A CN103512775 A CN 103512775A CN 201310100475 A CN201310100475 A CN 201310100475A CN 103512775 A CN103512775 A CN 103512775A
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- dimethyl ether
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Abstract
The invention discloses a dimethyl ether sampling switching device, relating to the technical field of production manufacturing of dimethyl ether. The device comprises a cylindrical main body, and a gas inlet end and a sampling end which are arranged on both ends of the main body, wherein the gas inlet end is communicated with the sampling end, and the external diameter of the gas inlet end is greater than that of the sampling end; the gas inlet end is provided with a fixing unit for fixing a sampling unit; and the sampling end and the main body are connected through a sampling fixing nut. Under the interaction of all the components of the switching device, the switching device can implement sealed switching of gas ports, so that the dimethyl ether gas sample can not be mixed with outside air, thereby controlling the detection result errors.
Description
Technical field
The present invention relates to dimethyl ether manufacturing technology field, particularly a kind of dimethyl ether sampling switching device.
Background technology
Dimethyl ether (claim again methyl ether, be called for short DME) is a kind of colourless gas with ether fragrance, has the purposes of many uniquenesses in the chemical industry such as pharmacy, fuel and agricultural chemicals, can replace freon to be used as aerosol propellant and cold-producing medium, reduces the pollution to environment.Dimethyl ether can also be as the substitute of town gas and liquefied gas, and it is more superior than the alternative motor vehicle fuel of methyl alcohol.In addition, dimethyl ether also can be used as gas-development agent, coupling agent, for closing out low-carbon alkene, manufactures the oxygenated hydrocarbon of high-knock rating gasoline, aromatic hydrocarbons and high molecular etc.
In tradition dimethyl ether production run; when in transfer cask or gas-holder, gas of dimethyl ether samples; because the bore of transfer cask or gas-holder exhausr port is larger; conventionally can carry out gas production by air bag; after gas production, need manual closing air bag, but air bag is to complete the closed time longer; easily cause dimethyl ether sample gas to mix with air, thereby cause testing result error large.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention is: how to improve the Detection accuracy of dimethyl ether sampling, reduce the error of testing result.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of dimethyl ether sampling switching device, described device comprises: the main body of tubular and be located at inlet end and the sampling end at described main body two ends, the external diameter of described inlet end and sampling end connection and described inlet end is greater than the external diameter of described sampling end, described inlet end is provided with for fixedly treating the fixed cell of sampling apparatus, between described sampling end and main body, by sampling hold-down nut, is connected.
Wherein, described fixed cell comprises: be located at the pilot hole on described inlet end and be located at the locating piece in described pilot hole, described locating piece and described pilot hole adapt.
Wherein, on described locating piece and one end that is positioned at described inlet end inside is provided with chamfering.
Wherein, described inlet end is sleeve.
Wherein, described sleeve is made by copper material.
Wherein, described sampling end is made by copper material.
Wherein, described inlet end is connected with the exhausr port of dimethyl ether gas-holder or the exhausr port of dimethyl ether transfer cask.
Wherein, described sampling end is connected with the sampling apparatus of dimethyl ether.
(3) beneficial effect
The cooperatively interacting to complete of all parts of the present invention by breakout box transferred to gas port closed, obtained dimethyl ether gas sample do not mixed by outside air, thereby control testing result error.
Accompanying drawing explanation
Fig. 1 is the structural representation of dimethyl ether sampling switching device of the present invention.
Fig. 2 is the inlet end structural representation of dimethyl ether sampling switching device of the present invention
Fig. 3 is the schematic diagram of a kind of embodiment of dimethyl ether sampling switching device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
With reference to the sampling of dimethyl ether shown in Fig. 1～2 switching device, described device comprises: the main body 3 of tubular and be located at inlet end 1 and the sampling end 5 at described main body two ends, the external diameter of described inlet end 1 and sampling end 5 connections and described inlet end 1 is greater than the external diameter of described sampling end 5, described inlet end 1 is provided with for fixedly treating the fixed cell of sampling apparatus, between described sampling end 5 and main body 3, by sampling hold-down nut 4, is connected.
Wherein, described fixed cell comprises: be located at the pilot hole 6 on described inlet end and be located at the locating piece 2 in described pilot hole 6, described locating piece 2 adapts with described pilot hole 6.
Preferably, on described locating piece 2 and one end that is positioned at described inlet end 1 inside is provided with chamfering, makes locating piece and closely offsets with gas-holder or transfer cask exhausr port 7.
Wherein, described inlet end 1 is sleeve.
Consider the little difficult leakage of copper material cold and hot expansion coefficient anti-corrosion and copper, preferably, described sleeve 1 is made by copper material, and described sampling end 5 is made by copper material, and described inlet end 1 is connected with the exhausr port of dimethyl ether gas-holder or the exhausr port 7 of dimethyl ether transfer cask.
Described sampling end 5 is connected with the sampling apparatus of dimethyl ether.
Below with reference to the dimethyl ether sampling switching device of a kind of embodiment shown in Fig. 3, specific works process is as follows:
This device one end is sampling sleeve 1, it can be connected with the exhausr port 7 of gas-holder or transfer cask, this sampling sleeve 1 adopts copper material to make, the little difficult leakage of cold and hot expansion coefficient anti-corrosion and copper, after gas-holder or transfer cask exhausr port 7 are connected with employing sleeve 1, locating piece 2 is moved to gas-holder or transfer cask exhausr port 7 directions by pilot hole 6, by locating piece 2 one end and gas-holder or transfer cask exhausr port 7 are offseted, make locating piece 2 and closely offset with gas-holder or transfer cask exhausr port 7, gas of dimethyl ether enters main body 3, main body 3 is transferred to sampling end 5 by the dimethyl ether of gas-holder or transfer cask exhausr port 7, gas of dimethyl ether enters sampling apparatus by sampling end 5 subsequently, this sampling switching device can also be connected with the sampling apparatus sample tap 8 with interface, by the sampling hold-down nut in this device 4 is fixing, can complete gas port closed is transferred, obtained dimethyl ether gas sample is not mixed by outside air, thereby control testing result error.
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (8)
1. a dimethyl ether samples switching device, it is characterized in that, described device comprises: the main body of tubular and be located at inlet end and the sampling end at described main body two ends, the external diameter of described inlet end and sampling end connection and described inlet end is greater than the external diameter of described sampling end, described inlet end is provided with for fixedly treating the fixed cell of sampling apparatus, between described sampling end and main body, by sampling hold-down nut, is connected.
2. device as claimed in claim 1, is characterized in that, described fixed cell comprises: be located at the pilot hole on described inlet end and be located at the locating piece in described pilot hole, described locating piece and described pilot hole adapt.
3. device as claimed in claim 2, is characterized in that, on described locating piece and one end that is positioned at described inlet end inside is provided with chamfering.
4. device as claimed in claim 1, is characterized in that, described inlet end is sleeve.
5. device as claimed in claim 1, is characterized in that, described sleeve is made by copper material.
6. install as described in claim 1, it is characterized in that, described sampling end is made by copper material.
7. the device as described in any one in claim 1～6, is characterized in that, described inlet end is connected with the exhausr port of dimethyl ether gas-holder or the exhausr port of dimethyl ether transfer cask.
8. the device as described in any one in claim 1～6, is characterized in that, described sampling end is connected with the sampling apparatus of dimethyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310100475.3A CN103512775B (en) | 2013-03-26 | 2013-03-26 | A kind of dimethyl ether sampling switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310100475.3A CN103512775B (en) | 2013-03-26 | 2013-03-26 | A kind of dimethyl ether sampling switching device |
Publications (2)
| Publication Number | Publication Date |
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| CN103512775A true CN103512775A (en) | 2014-01-15 |
| CN103512775B CN103512775B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310100475.3A Active CN103512775B (en) | 2013-03-26 | 2013-03-26 | A kind of dimethyl ether sampling switching device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7051604B1 (en) * | 1996-08-22 | 2006-05-30 | Mayeaux Holding Llc | Heat pipe sample fluid probe |
| CN201016893Y (en) * | 2007-03-22 | 2008-02-06 | 郑永贤 | Open type pipeline gas concentration gas recovery device |
| CN102519760A (en) * | 2011-12-29 | 2012-06-27 | 南京埃森环境技术有限公司 | Total gaseous mercury flue gas sampling gun and sampling system thereof |
| CN202693383U (en) * | 2012-07-13 | 2013-01-23 | 上海市环境监测中心 | Fixing device for sampling gun |
| CN102944502A (en) * | 2012-09-27 | 2013-02-27 | 河北先河环保科技股份有限公司 | Elastic quick connector |
| CN203178115U (en) * | 2013-03-26 | 2013-09-04 | 新能(张家港)能源有限公司 | Dimethyl ether sampling and transferring device |
-
2013
- 2013-03-26 CN CN201310100475.3A patent/CN103512775B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7051604B1 (en) * | 1996-08-22 | 2006-05-30 | Mayeaux Holding Llc | Heat pipe sample fluid probe |
| CN201016893Y (en) * | 2007-03-22 | 2008-02-06 | 郑永贤 | Open type pipeline gas concentration gas recovery device |
| CN102519760A (en) * | 2011-12-29 | 2012-06-27 | 南京埃森环境技术有限公司 | Total gaseous mercury flue gas sampling gun and sampling system thereof |
| CN202693383U (en) * | 2012-07-13 | 2013-01-23 | 上海市环境监测中心 | Fixing device for sampling gun |
| CN102944502A (en) * | 2012-09-27 | 2013-02-27 | 河北先河环保科技股份有限公司 | Elastic quick connector |
| CN203178115U (en) * | 2013-03-26 | 2013-09-04 | 新能(张家港)能源有限公司 | Dimethyl ether sampling and transferring device |
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| Publication number | Publication date |
|---|---|
| CN103512775B (en) | 2016-06-29 |
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Effective date of registration: 20201120 Address after: Room 307, 3 / F, building 2, No. 18 Wanyuan street, Beijing Economic and Technological Development Zone, Daxing District, Beijing 100176 Patentee after: New aoxinneng (Beijing) Technology Co.,Ltd. Address before: 215634 No. 25, Beijing Road, Yangzi International Chemical Industrial Park, Suzhou, Jiangsu, Zhangjiagang Patentee before: XINNENG (ZHANGJIAGANG) ENERGY Co.,Ltd. |