CN101949888B

CN101949888B - New drift bottle

Info

Publication number: CN101949888B
Application number: CN201010256794A
Authority: CN
Inventors: 徐伟
Original assignee: Jun'an Nantong Electronic Sci & Tech Development Co Ltd
Current assignee: JUN-AN NANTONG ELECTRONIC TECHNOLOGY DEVELOPMENT LTD.
Priority date: 2010-08-19
Filing date: 2010-08-19
Publication date: 2012-10-10
Anticipated expiration: 2030-08-19
Also published as: CN101949888A

Abstract

The invention discloses a new drift bottle which comprises a gas inlet region, an ionization region, a drift region and a gas outlet region, wherein a circulating gas inlet pipe is arranged at the top of the gas inlet region; the tail of the gas outlet region is connected with a gas outlet pipe; the gas inlet region comprises a first die carrier, a second die carrier and a die carrier fixing piece, wherein the first die carrier and the second die carrier are hollow and cylindrical; a diaphragm is arranged at the inlet of the top end of the first die carrier; a flare opening is arranged between the gas inlet region and the ionization region; the ionization region comprises a nonmetallic outer cylinder and an ionization well outer cylinder; an ionization well guide pipe is arranged in the ionization well outer cylinder; a lead is embedded in the nonmetallic outer cylinder; the drift region comprises a plurality of metallic drift rings and a plurality of nonmetallic insulating rings; a front grid mesh is arranged between the ionization region and the drift region; the metallic drift rings and the nonmetallic insulating rings are connected by welding and are arranged at intervals; a back grid mesh is arranged between the drift region and the gas outlet region; a Faraday disk is arranged in the gas outlet region; a conducting wire is inserted into the Faraday disk; and a shielding cylinder is arranged at the periphery of the conducting wire. The invention has the advantages of compact structure, long service life and accurate detection.

Description

Novel drift bottle

Technical field:

The present invention relates to a kind of pick-up unit, particularly a kind of novel drift bottle is a kind of novel gas phase analysis and detecting instrument, detects the trace chemistry substance classes through measuring the drift rate of gaseous state characteristic ion in weak electric field.

Background technology:

The drift bottle also can be described as drift tube, and the vitals in the drift bottle is metal drift rings and nonmetal dead ring; At present, the metal drift rings is a monoblock type, but not the metal-insulator ring is half stationary; The nonmetal dead ring of two and half stationaries can surround the metal drift rings, between two nonmetal dead rings and between metal drift rings and the nonmetal dead ring all is to link to each other through glue, when still the drift bottle operates under 250 ℃ of hot conditions; Sealing is difficulty relatively; Be full of cracks easily, so just gas leakage has easily directly influenced testing result.Simultaneously, the preceding aperture plate in the drift bottle is that braiding is formed with the back aperture plate, and the back easy deformation of being heated influences the signal transmission, and testing result is changed.

Summary of the invention:

The objective of the invention is in order to overcome above deficiency, provide a kind of compact conformation, long service life, detection novel accurately drift bottle.

The object of the invention is realized through following technical scheme: a kind of novel drift bottle, and novel drift bottle is cylindrical, novel drift bottle comprises air inlet area, ionization district, drift region successively and goes out the gas area; The top of air inlet area is connected with the circulation draft tube, and the afterbody that goes out the gas area is connected with escape pipe through the escape pipe fixed mount, and air inlet area is made up of first mould bases, second mould bases, the mould bases fixture of hollow cylinder; The first mould bases periphery is with second mould bases, and the second mould bases outer race has said mould bases fixture, and the inflow point on the first mould bases top is provided with the barrier film that is used to filter; Be provided with hydraucone between air inlet area and the ionization district, the ionization district forms by nonmetal urceolus with from the trap urceolus, is fixed on the inwall of nonmetal urceolus from the trap urceolus; Vertically be provided with in the wall of nonmetal urceolus from the trap conduit, an end that leaves the trap conduit passes nonmetal urceolus and from the trap urceolus, is embedded with a circle lead-in wire in the outer wall of nonmetal urceolus; Be provided with preceding aperture plate between ionization district and the drift region; The drift region is made up of a plurality of metal drift rings and a plurality of nonmetal dead ring, and the metal drift rings is five, and nonmetal dead ring is six; Metal drift rings and nonmetal dead ring are provided with at interval; Connect through being weldingly connected between metal drift rings and the nonmetal dead ring, drift region and going out is provided with the back aperture plate between the gas area, goes out to be provided with a circle faraday dish in the gas area; Vertically be inserted with lead in the wall of faraday's dish, the lead periphery is provided with shielding cylinder.

The present invention compared with prior art has the following advantages: metal drift rings and nonmetal dead ring among the present invention are monoblock type, and between the two through being weldingly connected, are connected firmly, and under the condition of high temperature, can not divide; Avoided the phenomenon of gas leakage, simultaneously, preceding aperture plate is disposable forming net with the back aperture plate; Can prevent temperature distortion, can not influence the transmission of signal, improve signal intensity; Signal quality has also improved greatly, and promptly the qualification rate of signal uprises, and; The serviceable life of drift bottle is elongated, can play shockproof effect, and accuracy of detection is higher.

Description of drawings:

Fig. 1 is a structural representation of the present invention;

Label among the figure: 1-air inlet area, 2-ionization district, 3-drift region, 4-go out aperture plate behind aperture plate before the gas area, 5-circulation draft tube, 6-escape pipe fixed mount, 7-escape pipe, 8-hydraucone, 9-, the 10-, 1.1-first mould bases, 1.2-second mould bases, 1.3-mould bases fixture, 1.4-barrier film, the nonmetal urceolus of 2.1-, 2.2-from trap urceolus, 2.3-from trap conduit, 2.4-lead-in wire, 3.1-metal drift rings, the nonmetal dead ring of 3.2-, 4.1-faraday dish, 4.2-lead, 4.3-shielding cylinder.

Embodiment:

In order to deepen to understanding of the present invention, will combine embodiment and accompanying drawing that the present invention is made further detailed description below, this embodiment only is used to explain the present invention, does not constitute the qualification to protection domain of the present invention.

Show a kind of embodiment of the novel drift bottle of the present invention like Fig. 1, the drift bottle be cylindrical, and the outside surface of drift bottle also is provided with and heats skin and temperature detecting resistance; The drift bottle comprises air inlet area 1, ionization district 2, drift region 3 successively and goes out gas area 4, also is with metal cylinder outside the air inlet area 1, is generally aluminum barrel; The heat that is used for outside surface is heated skin is led mould bases fixture 1.3, is that whole drift bottle is heated evenly, and the top of air inlet area 1 is connected with circulation draft tube 5; The afterbody that goes out gas area 4 is connected with escape pipe 7 through escape pipe fixed mount 6, and air inlet area 1 is made up of first mould bases 1.1 of hollow cylinder, second mould bases 1.2, mould bases fixture 1.3, and first mould bases, 1.1 peripheries are with second mould bases 1.2; The inflow point that second mould bases, 1.2 peripheries are with mould bases fixture 1.3, the first mould bases 1.1 tops is provided with the barrier film 1.4 that is used to filter, and is provided with hydraucone 8 between air inlet area 1 and the ionization district 2; Hydraucone 8 can play the effect that buffering is amplified when molecule gets into ionization district 2, ionization district 2 forms by nonmetal urceolus 2.1 with from trap urceolus 2.2, is fixed on the inwall of nonmetal urceolus 2.1 from trap urceolus 2.2; Vertically be provided with in the wall of nonmetal urceolus 2.1 from trap conduit 2.3, an end that leaves trap conduit 2.3 passes nonmetal urceolus 2.1 and from trap urceolus 2.2, is embedded with a circle lead-in wire 2.4 in the outer wall of nonmetal urceolus 2.1; Aperture plate 9 before being provided with between ionization district 2 and the drift region 3, drift region 3 is made up of with a plurality of nonmetal dead rings 3.2 a plurality of metal drift rings 3.1, and the optimal number of metal drift rings 3.1 is five; The optimal number of nonmetal dead ring 3.2 is six, and metal drift rings 3.1 is provided with nonmetal dead ring 3.2 at interval, connects through being weldingly connected between metal drift rings 3.1 and the nonmetal dead ring 3.2; Under the condition of high temperature, can not divide; Be connected firmly, detect more accurately, drift region 3 and going out is provided with back aperture plate 10 between the gas area 4; Preceding aperture plate 9 is disposable forming net with back aperture plate 10; Can prevent temperature distortion, can not influence the transmission of signal, go out to be provided with a circle faraday in the gas area 4 and coil 4.1; Faraday is coiled in 4.1 the wall and vertically is inserted with lead 4.2, and lead 4.2 peripheries are provided with shielding cylinder 4.3.

Under 250 ℃ of hot conditions, sample gas is passed barrier film 1.4 and is got in the drift bottle, and barrier film 1.4 materials are high-molecular organic material; The measured matter molecule dissolves in barrier film 1.4 and diffuses into barrier film 1.4 inwalls, and the circulation carrier gas gets into barrier film 1.4 inner wall spaces the air inlet area 1 from circulation draft tube 5 under the effect of ebullator; In air inlet area 1 was brought ionization district 2 into, molecule was become corresponding ion by ionization with the molecule on barrier film 1.4 inwalls, through from 2.3 pairs in trap conduit after trap urceolus 2.2 applies pulse voltage; When forming voltage; Forming an electric field near preceding aperture plate 9 front portions, when relative voltage was positive voltage, positive ion quickened to get into drift region 3 under electric field action; Otherwise negative ion quickens to get into drift region 3, under the frequent switching of positive or negative high voltage; Negative ions alternately is injected into drift region 3, can learn the substance classes that ion pair is answered through the detection to negative ions drift time, and last material arrives faraday and coils 4.1; Faraday coils 4.1 can detect data; And signal is sent to the external world through lead 4.2, and so just can monitor in real time data, can make detection more accurate.

Metal drift rings 3.1 among the present invention is monoblock type with nonmetal dead ring 3.2, and between the two through being weldingly connected, is connected firmly, and under the condition of high temperature, can not divide; Avoided the phenomenon of gas leakage, simultaneously, preceding aperture plate 9 is disposable forming net with back aperture plate 10; Can prevent temperature distortion, can not influence the transmission of signal, improve signal intensity; Signal quality has also improved greatly, and promptly the qualification rate of signal uprises, and; The serviceable life of drift bottle is elongated, can play shockproof effect, and accuracy of detection is higher.

Claims

1. novel drift bottle; Said novel drift bottle is cylindrical; Said novel drift bottle comprises air inlet area (1), ionization district (2), drift region (3) successively and goes out gas area (4), and the top of said air inlet area (1) is connected with circulation draft tube (5), and the said afterbody that goes out gas area (4) is connected with escape pipe (7) through escape pipe fixed mount (6); It is characterized in that: said air inlet area (1) is made up of first mould bases (1.1), second mould bases (1.2), the mould bases fixture (1.3) of hollow cylinder; Said first mould bases (1.1) outer race has said second mould bases (1.2), and said second mould bases (1.2) outer race has said mould bases fixture (1.3), and the inflow point on said first mould bases (1.1) top is provided with the barrier film (1.4) that is used to filter; Be provided with hydraucone (8) between said air inlet area (1) and the said ionization district (2); Said ionization district (2) forms by nonmetal urceolus (2.1) with from trap urceolus (2.2), on the said inwall that is fixed on said nonmetal urceolus (2.1) from trap urceolus (2.2), vertically is provided with in the wall of said nonmetal urceolus (2.1) from trap conduit (2.3); A said end from trap conduit (2.3) passes said nonmetal urceolus (2.1) and leaves trap urceolus (2.2); Be embedded with a circle lead-in wire (2.4) in the outer wall of said nonmetal urceolus (2.1), be provided with preceding aperture plate (9) between said ionization district (2) and said drift region (3), said drift region (3) are made up of a plurality of metal drift rings (3.1) and a plurality of nonmetal dead ring (3.2); Said metal drift rings (3.1) and nonmetal dead ring (3.2) are provided with at interval; Connect through being weldingly connected between said metal drift rings (3.1) and the nonmetal dead ring (3.2), said drift region (3) and go out to be provided with between the gas area (4) back aperture plate (10) saidly go out to be provided with circle faraday's dish (4.1) in the gas area (4); Vertically be inserted with lead (4.2) in the wall of said faraday's dish (4.1), said lead (4.2) periphery is provided with shielding cylinder (4.3).

2. according to the said novel drift bottle of claim 1, it is characterized in that: said metal drift rings (3.1) is five, and said nonmetal dead ring (3.2) is six.