CN105413327A - Filter core having anti-water, anti-dust and gas-permeable membrane and used for spectrograph argon filter - Google Patents
Filter core having anti-water, anti-dust and gas-permeable membrane and used for spectrograph argon filter Download PDFInfo
- Publication number
- CN105413327A CN105413327A CN201510986658.9A CN201510986658A CN105413327A CN 105413327 A CN105413327 A CN 105413327A CN 201510986658 A CN201510986658 A CN 201510986658A CN 105413327 A CN105413327 A CN 105413327A
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- Prior art keywords
- dust
- filter
- proof
- core pipe
- argon gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2267/00—Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
- B01D2267/40—Different types of filters
Abstract
The invention discloses a filter core having an anti-water, anti-dust and gas-permeable membrane and used for a spectrograph argon filter. The filter core is mainly characterized in that an inner layer anti-water, anti-dust and gas-permeable membrane is arranged on the inner hole wall surface of a core tube in the left and right length directions, and an outer layer anti-water, anti-dust and gas-permeable membrane is arranged on the outer diameter surface of the core tube in the left and right length directions. A wool filter layer is arranged on the periphery of an outer surface of the outer layer anti-water, anti-dust and gas-permeable membrane in the left and right length directions. The inner layer anti-water, anti-dust and gas-permeable membrane and the outer layer anti-water, anti-dust and gas-permeable membrane are formed by puffing, stretching and expanding polytetrafluoroethylene. Each square cun of the surface of the stretched polytetrafluoroethylene has more than 9 billion micropores, each micropore being 0.1-0.3 [mu]m in diameter. In a detection process of a spectrograph, argon flowing to an emission detection bench of the spectrograph is subjected to three times of filtration through the filter core of the spectrograph argon filter, so that dust and impurities in argon and dust and water fog in air are prevented from flowing to the emission detection bench of the spectrograph, thereby increasing accuracy of a detection result of the spectrograph and improving product quality.
Description
Technical field
The present invention relates to spectrometer technical field, particularly a kind of filter core of the spectrometer argon gas filter with water proof and dust proof ventilated membrane.
Background technology
Spectrometer is the metallic element detecting instrument of high precision; need at highly purified inert gas in testing process---carry out under the protection of-argon gas (purity 99.999%); testing result just can be precisely; nominally existing argon gas all marks purity 99.999%; due to reasons such as pouring process and empty bottle cleanings; actual purity has error, can not meet the instructions for use of spectrometer.The brand spectrometer that countries in the world produce meets instructions for use for enabling argon gas, all in argon gas pipeline, argon gas filter is housed, the filter core of existing spectrometer argon gas filter is all wrapped on tube core by knitting wool and axis diagonal cross to be made, filter effect is not ideal enough, dust in dust in argon gas, impurity and air, water smoke also flow to spectrometer by filter core and launch monitor station, have a strong impact on accuracy and the product quality of spectrometer testing result.
Summary of the invention
The object of the invention is to the deficiency improving prior art, there is provided the dust in a kind of dust stopped in argon gas, impurity and air, water smoke to flow to by the filter core of spectrometer argon gas filter the filter core that the spectrometer argon gas filter with water proof and dust proof ventilated membrane of monitor station launched by spectrometer, improve accuracy and the product quality of spectrometer testing result.
Technical scheme of the present invention is: the filter core comprising a kind of spectrometer argon gas filter with water proof and dust proof ventilated membrane of knitting wool filter course and core pipe, the external diameter border of described core pipe is along left, right length direction and axis diagonal cross are wound with the thick knitting wool filter course of 15 ~ 30mm, the thickness of pipe wall border of core pipe is along left, right length direction is provided with the uniform square passage of many rows, the endoporus left end of core pipe is provided with the left-hand thread hole be connected with the joint sealing of argon gas pipeline, the endoporus right-hand member of core pipe is provided with the right-hand thread hole be tightly connected with the filter core holder of spectrometer argon gas filter, main feature of the present invention is: the endoporus wall border of core pipe is along left, right length direction is provided with internal layer water proof and dust proof ventilated membrane, the external diameter surface border of core pipe is along left, right length direction is provided with waterproof outer dust-proof air ventilation film, the outer surface border of waterproof outer dust-proof air ventilation film is along left, right length direction is provided with knitting wool filter course.
Described internal layer water proof and dust proof ventilated membrane and the endoporus wall of core pipe do not have the firm gluing of place all-purpose adhesive of passage to be sealed.
Described waterproof outer dust-proof air ventilation film and the external diameter surface of core pipe do not have the firm gluing of place all-purpose adhesive of passage to be sealed.
Described internal layer water proof and dust proof ventilated membrane and waterproof outer dust-proof air ventilation film are formed by polytetrafluoroethylbulked bulked stretching expansion, and there are more than 90 hundred million micropores on every square cun, the surface of the poly tetrafluoroethylene after stretching, and each micro-pore diameter is 0.1 ~ 0.3 micron.
The present invention compared with prior art has following distinguishing feature and good effect: the present invention is provided with internal layer water proof and dust proof ventilated membrane in the endoporus wall border of core pipe along left and right length direction, be provided with waterproof outer dust-proof air ventilation film in the external diameter surface border of core pipe along left and right length direction, be provided with knitting wool filter course in the outer surface border of outer water proof and dust proof ventilated membrane along left and right length direction.The present invention is provided with inside and outside two-layer water proof and dust proof ventilated membrane in the endoporus wall border of core pipe and the external diameter surface border of core pipe along left and right length direction respectively.In spectrometer testing process, the argon gas flowing to spectrometer transmitting monitor station is carried out three filtrations through the filter core of spectrometer argon gas filter by the present invention, the dust in the dust in argon gas, impurity and air can be stopped, water smoke flows to spectrometer and launch monitor station, improve accuracy and the product quality of spectrometer testing result.
Internal layer water proof and dust proof ventilated membrane of the present invention and waterproof outer dust-proof air ventilation film are formed by polytetrafluoroethylbulked bulked stretching expansion, and there are more than 90 hundred million micropores on every square cun, the surface of the poly tetrafluoroethylene after stretching, and each micro-pore diameter is 0.1 ~ 0.3 micron.Each micro-pore diameter on the surface of inside and outside two-layer water proof and dust proof ventilated membrane of the present invention is less than the diameter of the globule more than 10000 times, have and superpower to block water, hinder dirt performance, water smoke, dust cannot pass through micropore, and the present invention can stop dust in dust, impurity and the air in argon gas, water smoke flows to spectrometer by the filter core of spectrometer argon gas filter and launches monitor station; Larger than water vapour molecule more than 700 times of each micro-pore diameter, the present invention can allow argon molecules easily pass micropore, ensures that spectrometer is launched monitor station and precisely detected.The accuracy of further raising spectrometer testing result and product quality.
Accompanying drawing explanation
Concrete structure of the present invention is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the concrete structure schematic diagram of filter core of a kind of spectrometer argon gas filter with water proof and dust proof ventilated membrane proposed according to the present invention.
Fig. 2 is the process chart of concrete structure in spectrometer argon gas filter of filter core of a kind of spectrometer argon gas filter with water proof and dust proof ventilated membrane proposed according to the present invention, wherein: arrow direction indication is argon gas flow direction.
In figure: (1) is knitting wool filter course, (2) are core pipe, and (3) are passage, and (4) are right-hand thread hole, and (5) are internal layer water proof and dust proof ventilated membrane, and (6) are left-hand thread hole, and (7) are waterproof outer dust-proof air ventilation film,
(8) be filter core holder, (9) are joint for spectrometer argon gas filter, (10).
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment: as shown in the figure, comprise the filter core of a kind of spectrometer argon gas filter with water proof and dust proof ventilated membrane of knitting wool filter course (1) and core pipe (2), the external diameter border of described core pipe (2) is along left, right length direction and axis diagonal cross are wound with the thick knitting wool filter course (1) of 20mm, the thickness of pipe wall border of core pipe (2) is along left, right length direction is provided with the uniform square passage (3) of many rows, the endoporus left end of core pipe (2) is provided with the left-hand thread hole (6) be tightly connected with the joint of argon gas pipeline (10), the endoporus right-hand member of core pipe (2) is provided with the right-hand thread hole (4) be tightly connected with the filter core holder (8) of spectrometer argon gas filter (9), main feature of the present invention is: the endoporus wall border of core pipe (2) is along left, right length direction is provided with internal layer water proof and dust proof ventilated membrane (5), the external diameter surface border of core pipe (2) is along left, right length direction is provided with waterproof outer dust-proof air ventilation film (7), the outer surface border of waterproof outer dust-proof air ventilation film (7) is along left, right length direction is provided with knitting wool filter course (1).
Internal layer water proof and dust proof ventilated membrane (5) does not have the firm gluing of place all-purpose adhesive of passage (3) to be sealed with the endoporus wall of core pipe (2).
Waterproof outer dust-proof air ventilation film (7) does not have the firm gluing of place all-purpose adhesive of passage (3) to be sealed with the external diameter surface of core pipe (2).
Internal layer water proof and dust proof ventilated membrane (5) and waterproof outer dust-proof air ventilation film (7) are formed by polytetrafluoroethylbulked bulked stretching expansion, and there are more than 90 hundred million micropores on every square cun, the surface of the poly tetrafluoroethylene after stretching, and each micro-pore diameter is 0.15 micron.
The course of work of the present invention (one): the present invention is arranged in spectrometer argon gas filter: the filter core holder of right-hand thread hole of the present invention and spectrometer argon gas filter is sealed connected together; The joint of argon gas pipeline and left-hand thread hole of the present invention are sealed connected together; The centre bore of the lid of spectrometer argon gas filter is inserted in housing seal that is rear and spectrometer argon gas filter to link together from the upper end of joint; Screw in nut in the upper end of joint, joint is tightened together with sealing of lid; The attaching nut of the external screw thread of upper end of joint and argon gas pipeline is sealed connected together.
The course of work of the present invention (two): as shown by the arrows in Figure 2, the argon gas in spectrometer argon gas filter is entered into from the housing right-hand member bottom input hole of spectrometer argon gas filter, carry out first time by knitting wool filter course to filter, the dust in the dust in argon gas, impurity and air, water smoke are blocked in outside knitting wool filter course.
The course of work of the present invention (three): the argon gas filtered through first time carries out second time by waterproof outer dust-proof air ventilation film and filters, and the dust in the dust in argon gas, impurity and air, water smoke is blocked in outside waterproof outer dust-proof air ventilation film.
The course of work of the present invention (four): after the argon gas of second time filtration flows to passage, carry out third time by internal layer water proof and dust proof ventilated membrane again to filter, again the dust in the dust in argon gas, impurity and air, water smoke are blocked in outside internal layer water proof and dust proof ventilated membrane.
The course of work of the present invention (five): the argon gas filtered through third time finally flows to the endoporus of core pipe; the joint of the argon gas pipeline be tightly connected from the left-hand thread hole of the endoporus left end with core pipe again flows through argon gas pipeline; finally flow to spectrometer and launch monitor station, when detecting for transmitting monitor station, carry out isolated air conservation.
Claims (1)
1. the filter core with the spectrometer argon gas filter of water proof and dust proof ventilated membrane, comprise knitting wool filter course (1) and core pipe (2), the external diameter border of described core pipe (2) is along left, right length direction and axis diagonal cross are wound with the thick knitting wool filter course (1) of 15 ~ 30mm, the thickness of pipe wall border of core pipe (2) is along left, right length direction is provided with the uniform square passage (3) of many rows, the endoporus left end of core pipe (2) is provided with the left-hand thread hole (6) be tightly connected with the joint of argon gas pipeline (10), the endoporus right-hand member of core pipe (2) is provided with the right-hand thread hole (4) be tightly connected with the filter core holder (8) of spectrometer argon gas filter (9), it is characterized in that: the endoporus wall border of core pipe (2) is along left, right length direction is provided with internal layer water proof and dust proof ventilated membrane (5), the external diameter surface border of core pipe (2) is along left, right length direction is provided with waterproof outer dust-proof air ventilation film (7), the outer surface border of waterproof outer dust-proof air ventilation film (7) is along left, right length direction is provided with knitting wool filter course (1),
Described internal layer water proof and dust proof ventilated membrane (5) does not have the firm gluing of place all-purpose adhesive of passage (3) to be sealed with the endoporus wall of core pipe (2);
Described waterproof outer dust-proof air ventilation film (7) does not have the firm gluing of place all-purpose adhesive of passage (3) to be sealed with the external diameter surface of core pipe (2);
Described internal layer water proof and dust proof ventilated membrane (5) and waterproof outer dust-proof air ventilation film (7) are formed by polytetrafluoroethylbulked bulked stretching expansion, there are more than 90 hundred million micropores on every square cun, the surface of the poly tetrafluoroethylene after stretching, and each micro-pore diameter is 0.1 ~ 0.3 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986658.9A CN105413327B (en) | 2015-12-26 | 2015-12-26 | A kind of filter element of the spectrogrph argon filter with water proof and dust proof ventilated membrane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510986658.9A CN105413327B (en) | 2015-12-26 | 2015-12-26 | A kind of filter element of the spectrogrph argon filter with water proof and dust proof ventilated membrane |
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| Publication Number | Publication Date |
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| CN105413327A true CN105413327A (en) | 2016-03-23 |
| CN105413327B CN105413327B (en) | 2017-04-05 |
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| CN201510986658.9A Active CN105413327B (en) | 2015-12-26 | 2015-12-26 | A kind of filter element of the spectrogrph argon filter with water proof and dust proof ventilated membrane |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930265A (en) * | 2017-12-29 | 2018-04-20 | 浙江安吉铭瑞汽车销售有限公司 | A kind of drying dustproof construction of air filtering core |
| CN108159793A (en) * | 2017-12-29 | 2018-06-15 | 浙江安吉铭瑞汽车销售有限公司 | A kind of drying dust-control method of air filtering core |
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Patent Citations (7)
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| CN2264039Y (en) * | 1996-07-26 | 1997-10-08 | 核工业西南物理研究院 | Gas-liquid separator having nitrogen reclaimed |
| KR20040036238A (en) * | 2002-10-24 | 2004-04-30 | 박노인 | A small-sized air cleaner |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107930265A (en) * | 2017-12-29 | 2018-04-20 | 浙江安吉铭瑞汽车销售有限公司 | A kind of drying dustproof construction of air filtering core |
| CN108159793A (en) * | 2017-12-29 | 2018-06-15 | 浙江安吉铭瑞汽车销售有限公司 | A kind of drying dust-control method of air filtering core |
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| CN105413327B (en) | 2017-04-05 |
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Effective date of registration: 20181206 Address after: 214062 Shangheyuan 27-9-1402, Liangxi District, Wuxi City, Jiangsu Province Patentee after: Wuxi Tongchun New Energy Technology Co., Ltd. Address before: 366200 room 304, Jen Li building, unity Road, Lianfeng Town, Liancheng County, Longyan, Fujian Patentee before: Luo Jianhua |
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