CN107064114A - A kind of removable Microwave Induced Plasma torch pipe - Google Patents

A kind of removable Microwave Induced Plasma torch pipe Download PDF

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Publication number
CN107064114A
CN107064114A CN201611160745.XA CN201611160745A CN107064114A CN 107064114 A CN107064114 A CN 107064114A CN 201611160745 A CN201611160745 A CN 201611160745A CN 107064114 A CN107064114 A CN 107064114A
Authority
CN
China
Prior art keywords
fixed seat
pipe
tube
plasma torch
quartz socket
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
Application number
CN201611160745.XA
Other languages
Chinese (zh)
Inventor
王加勇
郭鹏然
梁维新
范怀勇
潘佳钏
程斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Testing And Analysis Inst
Instrument Technology (guangzhou) Co Ltd
Original Assignee
Guangdong Testing And Analysis Inst
Instrument Technology (guangzhou) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Testing And Analysis Inst, Instrument Technology (guangzhou) Co Ltd filed Critical Guangdong Testing And Analysis Inst
Priority to CN201611160745.XA priority Critical patent/CN107064114A/en
Publication of CN107064114A publication Critical patent/CN107064114A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/71Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
    • G01N21/73Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Plasma & Fusion (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Plasma Technology (AREA)

Abstract

The present invention provides a kind of removable Microwave Induced Plasma torch pipe, including:Three layers of quartz socket tube for forming and maintaining plasma torch, including outer tube, middle pipe and central tube;Some fixed seats for fixing quartz socket tube, the fixed seat is provided with the central through hole for being used for installing quartz socket tube;Three layers of quartz socket tube accordingly sequentially passes through some fixed seats;Adjacent fixed seat is detachably connected;The correspondence middle mouth of pipe is provided with the mouth of pipe of the correspondence outer tube in the first air admission hole, another fixed seat provided with the second air admission hole in one fixed seat.The present invention realizes three layers of quartz socket tube by said structure and is detachably fixed connection, when one of quartz socket tube is damaged, replaceable one new pipe, easy to use and energy-conserving and environment-protective.

Description

A kind of removable Microwave Induced Plasma torch pipe
Technical field
The invention belongs to emission spectrometric analyzer device field, more particularly to a kind of removable Microwave Induced Plasma torch Pipe.
Background technology
Spectroscopic light source is the core of emission spectrumqa instrument, referred to as inductively coupled plasma atomic emission spectrometry, (ICP- AES) analytical technology, the detection limit that has by it is low, matrix effect is small, precision is high, sensitivity is high, the range of linearity is wide and many Element simultaneously analyze many advantages, such as and be able to extensive use.However, because ICP spectrometric instruments will consume substantial amounts of rare Gas-argon gas, is the obvious shortcoming of the technology, and the novel emission spectroscopic light source that argon gas is saved in development just turns into spectrum analysis skill The important goal in art field.
Thus introduce microwave plasma, microwave induct plasma (abbreviation MIP) be microwave plasma light source weight Classification is constituted, it, which can be employed nitrogen as, maintains its plasma torch for working gas.It can be with shape under certain condition Into the peripheral plasma similar to ICP light sources.Due to during use, the outer layer quartz ampoule of microwave plasma torch pipe Easily because gas flow rate, microwave power deviate normal value or other reasonses, outer layer quartz ampoule is easily burnt by plasma melts damage It is bad, and the probability that comparatively the structure central tube increasingly complex compared with outer tube is damaged is less.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided a kind of removable Microwave Induced Plasma torch Pipe, its three layers of sleeve pipes can realize dismounting and change, energy-conserving and environment-protective.
In order to achieve the above object, the present invention uses following technical scheme:
A kind of removable Microwave Induced Plasma torch pipe, it is characterised in that including:
Three layers of quartz socket tube for forming and maintaining plasma torch, including successively the outer tube of fit, middle pipe and in Heart pipe;
Some fixed seats for fixing quartz socket tube, the fixed seat is provided with the center for being used to install quartz socket tube and led to Hole;Three layers of quartz socket tube accordingly sequentially passes through some fixed seats;Adjacent fixed seat is detachably connected;Correspondence in one fixed seat The mouth of pipe that the mouth of pipe of the inlet end of the middle pipe is provided with the inlet end of the correspondence outer tube in the first air admission hole, another fixed seat is set There is the second air admission hole.
Preferably, the outer wall of the quartz socket tube is provided with positioning convex ring, the fixed seat is provided with stopper slot;It is adjacent solid A quartz socket tube is fixed in reservation jointly, and adjacent fixed seat compresses positioning convex ring or the mouth of pipe side of the quartz socket tube by stopper slot Edge fixes quartz socket tube.
Preferably, the positioning convex ring or/and stopper slot are provided with seal.
Fixed preferably, the fixed seat is provided with fixed seat, head end fixed seat and end in the middle part of four, including two Seat;
The head end fixed seating is located at the central tube, and the end fixed seating is located at the outer tube;
Described two middle part fixed seats, including the first middle part fixed seat and the second middle part fixed seat;First middle part is solid Reservation is set on central tube and middle pipe, and second middle part fixed seating is located on the middle pipe and outer tube;
The head end fixed seat compresses the positioning convex ring of the central tube with first middle part fixed seat;In described first Portion's fixed seat compresses the mouth of pipe edge of inlet end and the determining for the middle pipe of the middle pipe with second middle part fixed seat respectively Position bulge loop;Second middle part fixed seat and the end fixed seat compress the mouth of pipe edge of the inlet end of the outer tube and described The positioning convex ring of outer tube.
Preferably, along outer tube to the direction of central tube, fixed seat is covered in next fixed seat successively.
Preferably, adjacent fixed seat is connected by bolt and flange.
Preferably, the center overlapping of axles of three layers of quartz socket tube;The center of the central through hole of some fixed seats Overlapping of axles.
Preferably, the material of the fixed seat is polyformaldehyde or polytetrafluoroethylene (PTFE).
Preferably, the mouth of pipe horizontal alignment of the outlet side of the mouth of pipe of the outlet side of the central tube and the middle pipe.
Compared with prior art, the invention has the advantages that:
The present invention realizes three layers of quartz socket tube by said structure and is detachably fixed connection, when one of quartz socket tube During damage, replaceable one new pipe, easy to use and energy-conserving and environment-protective.It is fixed using four sleeve pipes, can free assembly and disassembly Microwave plasma torch pipe, any one quartzy torch pipe can be changed, its advantage is can effectively to reduce cost.And In instrument development process of the test, many uncertain factors are easier to damage torch pipe, contrast the torch pipe of integration, present invention design Quartz ampoule processing it is easier, change simple.Greatly save test period and processing cost.Relative to existing use rubber The torch pipe that face is docked with stomata, design of the invention can effectively prevent air-hole blockage, existing MIP torch pipes using rubber face with Torch pipe fixing device is connected, and gas must enter quarter bend by rubber face, during the long-time use of torch pipe, rubber face meeting Due to high-temperature volume expansion, for the thinner stomata of internal diameter, the rubber face of expansion can reduce the internal diameter of stomata, or even stifled Plug, influences the stability of plasma;And the fixing device of the present invention is directly connected with quartz ampoule, auxiliary gas and cooling gas pass through The stomata of fixing device has been entered directly among the gap between quartz ampoule, and fixing device is processed using heat-resisting material, Such as polytetrafluoroethylene (PTFE), thermal coefficient of expansion is smaller.It is not easily blocked the stability that stomata ensures plasma.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the cross-sectional view of the present invention;
Fig. 3 is the schematic diagram of three layers of quartz socket tube of the present invention.
In figure:
12-end fixed seat;14-the second middle part fixed seat;16-the first middle part fixed seat;18-head end fixed seat; 20-outer tube;22-middle pipe;24-central tube;26-the second air admission hole;28-the first air admission hole;30-positioning convex ring;32— Second stopper slot;34-central through hole;36-aeresols;38-be used to install the hole of flange.
Embodiment
In conjunction with accompanying drawing, the present invention is further illustrated.
Refering to shown in Fig. 1 to Fig. 3, a kind of removable Microwave Induced Plasma torch pipe of the present invention, including:
Three layers of quartz socket tube for forming and maintaining plasma torch, including outer tube 20, middle pipe 22 and central tube 24. The outer wall of quartz socket tube is all provided with positioning convex ring 30.The center overlapping of axles of three layers of quartz socket tube.
Four fixed seats for fixing quartz socket tube, fixed seat is provided with the central through hole for being used for installing quartz socket tube 34;The center overlapping of axles of the central through hole 34 of four fixed seats.The material of fixed seat is polyformaldehyde or or polytetrafluoroethylene (PTFE).
Four fixed seats include two middle part fixed seats, head end fixed seat 18 and end fixed seat 12.Head end fixed seat 18 Central tube 24 is set in, end fixed seat 12 is set in outer tube 20.Two middle part fixed seats, including the He of the first middle part fixed seat 16 Second middle part fixed seat 14;First middle part fixed seat 16 is set in central tube 24 and middle pipe 22, and the second middle part fixed seat 14 is arranged In middle pipe 22 and outer tube 20.
Adjacent fixed seat fixes a quartz socket tube jointly, and adjacent fixed seat compresses the knot of the quartz socket tube by stopper slot Structure fixes quartz socket tube, specifically:The middle part fixed seat 16 of head end fixed seat 18 and first compresses the positioning convex ring 30 of central tube 24; The mouth of pipe edge of the inlet end of pipe 22 and middle pipe 22 during first middle part fixed seat 16 and the second middle part fixed seat 14 are compressed respectively Positioning convex ring 30;Second middle part fixed seat 14 compresses the mouth of pipe edge and outer tube 20 of the inlet end of outer tube 20 with end fixed seat 12 Positioning convex ring 30.
It is used for the inlet end for compressing positioning convex ring 30 and quartz socket tube in addition to head end fixed seat 18, in remaining fixed seat Mouth of pipe edge is the first stopper slot and the second stopper slot 32 respectively, and the mouth of pipe edge of positioning convex ring 30 and inlet end is respectively implanted First stopper slot and the second stopper slot 32, so as to be compressed by correspondence stopper slot;During head end fixed seat 18 is compressed by end face The positioning convex ring 30 of heart pipe 24.The stopper slot of positioning convex ring 30 or/and first is provided with seal washer, and the positioning convex ring 30 inserts institute Sealing is realized when stating stopper slot between the two.
The mouth of pipe of the inlet end of pipe 22 is provided with the first air admission hole 28 in correspondence in first middle part fixed seat 16, and the second middle part is solid The mouth of pipe of the inlet end of correspondence outer tube 20 is provided with the second air admission hole 26 in reservation 14.
Along outer tube 20 to the direction of central tube 24, fixed seat is covered in next fixed seat successively, specifically:Refering to Fig. 2 Shown, end fixed seat 12 is located in the second middle part fixed seat 14, and it is fixed that the second middle part fixed seat 14 is located at the first middle part On seat 16, the first middle part fixed seat 16 is located in head end fixed seat 18.
Adjacent fixed seat is detachably connected, preferably, adjacent fixed seat can be connected using bolt and flange.
The mouth of pipe horizontal alignment of the outlet side of the mouth of pipe of the outlet side of central tube and middle pipe.
The use of the present invention:With reference to Fig. 1 and Fig. 3, plasma torch pipe is fixed on resonator by screw hole, made Gas ions torch is axially aligned with magnetic field maximum in resonator, and plasma asistance gas enters center by the first air admission hole 28 Gap between pipe 24 and middle pipe 22, is formed it into oval-shaped profile under the electric field component of microwave and the component effect in magnetic field Empty plasma, this is the mode that commonly used a kind of plasma in emission spectrum is produced.Cooling gas passes through second The gap helical flow that air admission hole 26 tangentially enters between outer tube 20 and middle pipe along inside pipe wall, between outer tube and inner tube Gap is very small, so forming the cooling gas of high flow rate, cooling gas effectively constrains plasma, prevents outer tube 20 burns from melting.
Prepare liquid quality sample is atomized by the atomization system being connected with the bottom of central tube 24, and sample is carry after atomization Aeresols plasma be directly injected into by central tube 24 excited.
The invention is not limited in above-mentioned embodiment, if the various changes or modification to the present invention do not depart from the present invention Spirit and scope, if these are changed and modification belongs within the scope of the claim and equivalent technologies of the present invention, then this hair It is bright to be also intended to comprising these changes and change.

Claims (9)

1. a kind of removable Microwave Induced Plasma torch pipe, it is characterised in that including:
Three layers of quartz socket tube for forming and maintaining plasma torch, including the outer tube of fit, middle pipe and central tube successively;
Some fixed seats for fixing quartz socket tube, the fixed seat is provided with the central through hole for being used for installing quartz socket tube; Three layers of quartz socket tube accordingly sequentially passes through some fixed seats;Adjacent fixed seat is detachably connected;Correspondence institute in one fixed seat The mouth of pipe for stating the inlet end of middle pipe is provided with the first air admission hole, and the mouth of pipe of the inlet end of the correspondence outer tube is provided with another fixed seat Second air admission hole.
2. removable Microwave Induced Plasma torch pipe according to claim 1, it is characterised in that the quartz socket tube Outer wall is provided with positioning convex ring, and the fixed seat is provided with stopper slot;Adjacent fixed seat fixes a quartz socket tube jointly, adjacent solid The positioning convex ring or mouth of pipe edge that reservation compresses the quartz socket tube by stopper slot fix quartz socket tube.
3. removable Microwave Induced Plasma torch pipe according to claim 2, it is characterised in that the positioning convex ring Or/and stopper slot is provided with seal.
4. removable Microwave Induced Plasma torch pipe according to claim 2, it is characterised in that
The fixed seat is provided with fixed seat, head end fixed seat and end fixed seat in the middle part of four, including two;
The head end fixed seating is located at the central tube, and the end fixed seating is located at the outer tube;
Described two middle part fixed seats, including the first middle part fixed seat and the second middle part fixed seat;First middle part fixed seat It is set on central tube and middle pipe, second middle part fixed seating is located on the middle pipe and outer tube;
The head end fixed seat compresses the positioning convex ring of the central tube with first middle part fixed seat;First middle part is solid Reservation compresses the mouth of pipe edge and the convex of the middle pipe of the inlet end of the middle pipe with second middle part fixed seat respectively Ring;Second middle part fixed seat compresses the mouth of pipe edge and the outer tube of the inlet end of the outer tube with the end fixed seat Positioning convex ring.
5. removable Microwave Induced Plasma torch pipe according to claim 2, it is characterised in that along outer tube to central tube Direction, fixed seat covers in next fixed seat successively.
6. removable Microwave Induced Plasma torch pipe according to claim 1, it is characterised in that adjacent fixed seat passes through Bolt and flange connection.
7. removable Microwave Induced Plasma torch pipe according to claim 1, it is characterised in that three layers of quartz sleeve The center overlapping of axles of pipe;The center overlapping of axles of the central through hole of some fixed seats.
8. removable Microwave Induced Plasma torch pipe according to claim 1, it is characterised in that the material of the fixed seat Matter is polyformaldehyde or polytetrafluoroethylene (PTFE).
9. removable Microwave Induced Plasma torch pipe according to claim 4, it is characterised in that the central tube goes out The mouth of pipe horizontal alignment of the outlet side of the mouth of pipe at gas end and the middle pipe.
CN201611160745.XA 2016-12-15 2016-12-15 A kind of removable Microwave Induced Plasma torch pipe Pending CN107064114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611160745.XA CN107064114A (en) 2016-12-15 2016-12-15 A kind of removable Microwave Induced Plasma torch pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611160745.XA CN107064114A (en) 2016-12-15 2016-12-15 A kind of removable Microwave Induced Plasma torch pipe

Publications (1)

Publication Number Publication Date
CN107064114A true CN107064114A (en) 2017-08-18

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CN201611160745.XA Pending CN107064114A (en) 2016-12-15 2016-12-15 A kind of removable Microwave Induced Plasma torch pipe

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201800020206A1 (en) 2018-12-19 2020-06-19 Directa Plus Spa EQUIPMENT FOR THE TREATMENT OF MATERIALS WITH PLASMA.
CN112262616A (en) * 2018-06-12 2021-01-22 安捷伦科技有限公司 ICP spectral torch with movable single-piece injector

Citations (13)

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Publication number Priority date Publication date Assignee Title
US4266113A (en) * 1979-07-02 1981-05-05 The United States Of America As Represented By The Secretary Of The Navy Dismountable inductively-coupled plasma torch apparatus
US4558201A (en) * 1984-12-10 1985-12-10 Thermal Dynamics Corporation Plasma-arc torch with gas cooled blow-out electrode
US4682005A (en) * 1985-02-22 1987-07-21 Lair Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plasma welding or cutting torch provided with a nozzle cartridge
US4739147A (en) * 1987-01-30 1988-04-19 The Dow Chemical Company Pre-aligned demountable plasma torch
US20040195218A1 (en) * 2002-11-07 2004-10-07 Hiroaki Tao Inductively-coupled plasma torch
CN1669368A (en) * 2002-05-21 2005-09-14 美国瓦里安澳大利亚有限公司 Plasma torch for microwave induced plasmas
CN101137267A (en) * 2006-08-30 2008-03-05 诺日士钢机株式会社 Plasma generation apparatus and workpiece processing apparatus using the same
CN103307380A (en) * 2013-05-15 2013-09-18 中国科学院等离子体物理研究所 Low-temperature fluid delivery tube connector with potential isolating function
CN203672790U (en) * 2013-12-23 2014-06-25 聚光科技(杭州)股份有限公司 Torch pipe mounting device
CN104180721A (en) * 2014-08-25 2014-12-03 西安近代化学研究所 Plasma ignition device with multilayer bottom
CN104220206A (en) * 2012-03-30 2014-12-17 弗罗纽斯国际有限公司 Plug part and socket part for detachably connecting a tube elbow of a gas-cooled welding torch to a hose packet, and connecting device with such a plug part and socket part
CN106507573A (en) * 2016-12-08 2017-03-15 广东省测试分析研究所(中国广州分析测试中心) A kind of dismountable microwave induced plasma torch pipe
CN206618689U (en) * 2016-12-15 2017-11-07 伊创仪器科技(广州)有限公司 A kind of removable Microwave Induced Plasma torch pipe

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266113A (en) * 1979-07-02 1981-05-05 The United States Of America As Represented By The Secretary Of The Navy Dismountable inductively-coupled plasma torch apparatus
US4558201A (en) * 1984-12-10 1985-12-10 Thermal Dynamics Corporation Plasma-arc torch with gas cooled blow-out electrode
US4682005A (en) * 1985-02-22 1987-07-21 Lair Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plasma welding or cutting torch provided with a nozzle cartridge
US4739147A (en) * 1987-01-30 1988-04-19 The Dow Chemical Company Pre-aligned demountable plasma torch
CN1669368A (en) * 2002-05-21 2005-09-14 美国瓦里安澳大利亚有限公司 Plasma torch for microwave induced plasmas
US20040195218A1 (en) * 2002-11-07 2004-10-07 Hiroaki Tao Inductively-coupled plasma torch
CN101137267A (en) * 2006-08-30 2008-03-05 诺日士钢机株式会社 Plasma generation apparatus and workpiece processing apparatus using the same
CN104220206A (en) * 2012-03-30 2014-12-17 弗罗纽斯国际有限公司 Plug part and socket part for detachably connecting a tube elbow of a gas-cooled welding torch to a hose packet, and connecting device with such a plug part and socket part
CN103307380A (en) * 2013-05-15 2013-09-18 中国科学院等离子体物理研究所 Low-temperature fluid delivery tube connector with potential isolating function
CN203672790U (en) * 2013-12-23 2014-06-25 聚光科技(杭州)股份有限公司 Torch pipe mounting device
CN104180721A (en) * 2014-08-25 2014-12-03 西安近代化学研究所 Plasma ignition device with multilayer bottom
CN106507573A (en) * 2016-12-08 2017-03-15 广东省测试分析研究所(中国广州分析测试中心) A kind of dismountable microwave induced plasma torch pipe
CN206618689U (en) * 2016-12-15 2017-11-07 伊创仪器科技(广州)有限公司 A kind of removable Microwave Induced Plasma torch pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112262616A (en) * 2018-06-12 2021-01-22 安捷伦科技有限公司 ICP spectral torch with movable single-piece injector
IT201800020206A1 (en) 2018-12-19 2020-06-19 Directa Plus Spa EQUIPMENT FOR THE TREATMENT OF MATERIALS WITH PLASMA.
WO2020127565A1 (en) 2018-12-19 2020-06-25 Directa Plus S.P.A. Apparatus for treating materials with plasma

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Application publication date: 20170818

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