CN209280630U - It is a kind of to move the sealing structure for composing pipe and transference tube and ionic migration spectrometer including the structure for ion - Google Patents
It is a kind of to move the sealing structure for composing pipe and transference tube and ionic migration spectrometer including the structure for ion Download PDFInfo
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- CN209280630U CN209280630U CN201821605380.1U CN201821605380U CN209280630U CN 209280630 U CN209280630 U CN 209280630U CN 201821605380 U CN201821605380 U CN 201821605380U CN 209280630 U CN209280630 U CN 209280630U
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Abstract
The utility model provides a kind of sealing structure for transference tube and transference tube and ionic migration spectrometer including the structure, and the sealing structure includes cylinder, T-type cylindrical glass lamp, pressure ring, O-ring seal, apical ring 5；Pressure ring, O-ring seal and apical ring are sequentially sleeved on T-type cylindrical glass lamp circumferential surface, are tightened, will be sealed between T-type cylindrical glass lamp and cylinder by the screw thread mutual cooperation of the screw thread and cylinder of apical ring.This sealing structure for transference tube ensure that the leakproofness and sensitivity for analysis of reaction zone in cylinder.
Description
Technical field
The utility model relates to Ion mobility spectrometries, and in particular to for transference tube sealing structure and including
The transference tube and ion of sealing structure move spectrometer.
Background technique
Ion mobility spectrometry is a kind of detection technique of trace gas sample, and liquid, solid sample are attached to sample introduction piece
On, it is sent to heating in sample injector, in a gaseous form as carrier gas enters transference tube, in the reaction zone quilt of transference tube
Ionization enters migration area by the control of ion gate, and molecular ion migrates under the action of migration area electric field to detector,
It is matched by detecting come the weak current of self-detector and its arrival time, and by it with standard substance library, so that it may sentence
The type of disconnected substance out.
Common ionization source includes radioactive ionization gauge source, discharge ionization source, by lamp ionization source of certain wavelength light etc.,
Wherein lamp ionization source is usually the internal T-type cylindrical glass lamp or cylindrical glass lamp for being full of inert gas, there is two above
Perhaps electrode slice is shone a electrode retaining collar by applying the method for DC voltage or radio-frequency voltage between two electrodes, light
Through special material optical window and form the light of specific wavelength, be radiated in the reaction zone of transference tube and ionize and therein have
Machine object dopant and sample form dopant ion and sample molecule ion, for Ion transfer spectrum analysis.
Transference tube needs to need to seal between leakproofness, especially reaction zone and T-type cylindrical glass lamp everywhere, again
It is easily dismantled replacement or cleaning, then assembles and seals again.Common encapsulating method, such as Fig. 1, in reaction zone towards T
The one side of type cylindrical glass lamp, does the groove of an O-ring seal, and the inside is put into O-ring seal, passes through O-ring seal handle
Sealing is formed between reaction zone and T-type cylindrical glass lamp.The problem of prior art is easy to appear is that sealing ring is deformed
Afterwards, T-type cylindrical glass lamp can squeeze and encounter on reaction zone, cause the O-ring seal that is broken, and being squeezed and deformed of Glass lamp
It is not easy to dismounting and change.
Utility model content
The utility model provides a kind of sealing structure for transference tube, including cylinder 1, T-type cylindrical glass lamp,
Pressure ring, O-ring seal, apical ring composition；Pressure ring, O-ring seal and apical ring are sequentially sleeved in the outer peripheral surface of T type cylindrical glass lamp
On, it is tightened, will be sealed between T type cylindrical glass lamp and cylinder, this by the screw thread mutual cooperation of the screw thread and cylinder of apical ring
The sealing structure of kind T-type cylindrical glass lamp, ensure that the leakproofness and sensitivity for analysis of reaction zone in cylinder 1.
On the one hand the utility model provides a kind of sealing structure for transference tube, the transference tube includes T
Type cylindrical glass lamp and round reaction zone, T-type cylindrical glass lamp be can electrified light emitting obturator, the T-type is cylindrical
Glass lamp includes the disc optical window and cylindrical lamp body of wafer type, and the outer diameter of the optical window of wafer type is greater than the outer of cylindrical lamp body
Diameter；The sealing structure includes cylinder, pressure ring, O-ring seal, apical ring；Cylinder interior has the round reaction zone of small internal diameter, imperial palace
The circular glass lamp seal area of diameter and the internal screw thread installing zone of large diameter, internal diameter and the internal screw thread peace of circular glass lamp seal area
The bottom diameter size for filling area is identical；The outer diameter of the optical window of wafer type is less than the internal diameter of the circular glass lamp seal area of cylinder, pressure
The large diameter of ring and the width of small internal diameter protrusion part are greater than；The thickness of the optical window of wafer type, on the one hand can protect disk
The optical window of type is oppressed, and prevents from damaging, and on the other hand makes the sealing structure sealing performance more preferable；Pressure ring has large diameter and small
Two part of internal diameter, large diameter are partially toward the optical window of wafer type, and large diameter is greater than the outer diameter of the optical window of wafer type, and small internal diameter is greater than
The outer diameter of cylindrical lamp body；The outer diameter of O-ring seal is equal to the internal diameter of circular glass lamp seal area, and the internal diameter of O-ring seal is small
In the external diameter of cylindrical light of T-type cylindrical glass lamp；Apical ring has external screw thread and the interior spiral shell with the internal screw thread installing zone in cylinder
Line cooperates, and the internal diameter of apical ring is greater than the outer diameter of lamp body；Pressure ring, O-ring seal and apical ring are sequentially sleeved in T-type cylindrical glass
On lamp, the optical window of wafer type is towards the round reaction zone of cylinder, by the screw thread of apical ring and the internal screw thread installing zone of cylinder
Screw thread mutual cooperation is tightened, and will be sealed between T-type cylindrical glass lamp and cylinder.The large diameter is relative to small internal diameter
Size comparatively speaking.
Based on above technical scheme, it is preferred that the length of the circular glass lamp seal area of cylinder interior is greater than pressure ring and O
The sum of the length of type sealing ring.
Based on above technical scheme, it is preferred that the length of the imperial palace path portion of pressure ring, greater than T-type cylindrical glass lamp
The length of the optical window of wafer type.
Based on above technical scheme, it is preferred that O-ring seal is flexible nitrile rubber, silicon rubber, fluorubber, three
First EP rubbers, neoprene.
Based on above technical scheme, it is preferred that the line footpath of O-ring seal is 0.8-3.1 millimeters, can be replaced.
Based on above technical scheme, it is preferred that T-type cylindrical glass lamp can according to need replacement, or replace with T-type
Discharge body, the two-way of cylindrical.
Based on above technical scheme, it is preferred that tightened, can be dismantled by screw thread mutual cooperation between apical ring and cylinder.
The sealing structure of this T-type cylindrical glass lamp ensure that the leakproofness and analysis spirit of cylinder inner circular reaction zone
Sensitivity.
Another aspect of the present invention provides a kind of transference tube including above-mentioned sealing structure.
Further aspect of the present invention provides a kind of ionic migration spectrometer including above-mentioned transference tube.
Beneficial effect
(1) sealing structure of the invention can preferably guarantee the leakproofness of round reaction zone and the sensitivity of analysis；Together
When, O-ring seal and pressure ring are sequentially sleeved in the excircle of Glass lamp, replacement easy to disassemble.
(2) large diameter of pressure ring and the width of small internal diameter protrusion part are greater than the thickness of optics window, can protect light
Window is oppressed, and prevents from damaging.
Detailed description of the invention
It is described in further detail with reference to the accompanying drawing.
Fig. 1 is prior art Ion transfer tube seal structure installation diagram；
Fig. 2 is the schematic diagram of the sealing structure of transference tube of the present invention；
Fig. 3 is the assembly process figure of the sealing structure of transference tube of the present invention；
Fig. 4 is the sealing structure installation diagram of transference tube of the present invention；
Wherein, 1 is cylinder, and 2 be T-type cylindrical glass lamp, and 3 be pressure ring, and 4 be O-ring seal, and 5 be apical ring, and 6 be circle
Reaction zone, 7 be circular glass lamp seal area, and 8 be internal screw thread installing zone, and 9 be the optical window of wafer type, and 10 be cylindrical lamp body.
Specific embodiment
Embodiment 1
A kind of sealing structure for transference tube, as shown in Figure 1, including cylinder 1, T-type cylindrical glass lamp 2, pressure
Ring 3, O-ring seal 4, apical ring 5；There are the round reaction zone 6 of small internal diameter, the circular glass lamp seal area of large diameter inside cylinder 1
7 and large diameter internal screw thread installing zone 8, the internal diameter of circular glass lamp seal area 7 and the bottom diameter ruler of internal screw thread installing zone 8
It is very little identical；T-type cylindrical glass lamp 2 be can electrified light emitting obturator, have the optical window 9 of wafer type, cylindrical part is cylinder
Shape lamp body 10, the outer diameter of the optical window 9 of wafer type are greater than the outer diameter of cylindrical lamp body 10, and the outer diameter of the optical window 9 of wafer type is less than circle
The internal diameter of the circular glass lamp seal area 7 of cylinder 1；Pressure ring 3 has two part of large diameter and small internal diameter, and large diameter is partially toward wafer type
Optical window 9, large diameter is greater than the outer diameter of the optical window 9 of wafer type, and small internal diameter is greater than the outer diameter of cylindrical lamp body 10；O-ring seal 4
Outer diameter be equal to the internal diameter of 1 circular glass lamp seal area 7 of cylinder, the internal diameter of O-ring seal 4 is less than T-type cylindrical glass lamp 2
10 outer diameter of cylindrical lamp body；Apical ring 5 has external screw thread and cooperates with 8 internal screw thread of internal screw thread installing zone of inner cylinder 1, apical ring 5
Internal diameter be greater than the outer diameter of cylindrical lamp body 10；The length of circular glass lamp seal area 7 inside cylinder 1 is greater than pressure ring 3 and O
The sum of the length of type sealing ring 4；The length of the imperial palace path portion of pressure ring 3, greater than the light of the wafer type of T-type cylindrical glass lamp 2
The length of window 9；The material of O-ring seal 4 is flexible silicon rubber, and the line footpath of O-ring seal 4 is 0.8 millimeter；Pressure ring 3, O
Type sealing ring 4 and apical ring 5 are sequentially sleeved on T-type cylindrical glass lamp 2, and the optical window 9 of wafer type is towards the round reaction zone of cylinder 1
6, it is tightened by the screw thread of apical ring 5 and 8 internal screw thread of the internal screw thread installing zone mutual cooperation of cylinder 1, by T-type cylindrical glass lamp 2
It is sealed between cylinder 1.The gas pressure of the leakproofness of test ion migration tube, sealed chamber is up to 0.15Mpa.
Embodiment 2
A kind of sealing structure for transference tube, as shown in Figure 1, by cylinder 1, T-type cylindrical glass lamp 2, pressure ring
3, O-ring seal 4, apical ring 5 forms；There are the round reaction zone 6 of small internal diameter, the circular glass lamp sealing of large diameter inside cylinder 1
The internal screw thread installing zone 8 in area 7 and large diameter, the internal diameter of circular glass lamp seal area 7 and the bottom diameter of internal screw thread installing zone 8
Size is identical；T-type cylindrical glass lamp 2 be can electrified light emitting obturator, have the optical window 9 of wafer type, cylindrical part is round
Cylindricality lamp body 10, the outer diameter of the optical window 9 of wafer type are greater than the outer diameter of cylindrical lamp body 10, and the outer diameter of the optical window 9 of wafer type is less than
The internal diameter of the circular glass lamp seal area 7 of cylinder 1；Pressure ring 3 has two part of large diameter and small internal diameter, and large diameter is partially toward disk
The optical window 9 of type, large diameter are greater than the outer diameter of optical window 9, and small internal diameter is greater than the outer diameter of cylindrical lamp body 10；Outside O type sealing ring 4
Diameter is equal to the internal diameter of the circular glass lamp seal area 7 of cylinder 1, and the internal diameter of O-ring seal 4 is less than the circle of T-type cylindrical glass lamp 2
10 outer diameter of cylindricality lamp body；Apical ring 5 have external screw thread and with 8 internal screw thread of internal screw thread installing zone of inner cylinder 1 cooperate, apical ring 5 it is interior
Diameter is greater than the outer diameter of cylindrical lamp body 10；The length of circular glass lamp seal area 7 inside cylinder 1 is greater than pressure ring 3 and O-shaped close
The sum of the length of seal 4；The length of the imperial palace path portion of pressure ring 3, greater than the optical window 9 of the wafer type of T-type cylindrical glass lamp 2
Length；The material of O-ring seal 4 is flexible fluorubber, and the line footpath of O-ring seal 4 is 3.1 millimeters；It is pressure ring 3, O-shaped close
Seal 4 and apical ring 5 are sequentially sleeved on T-type cylindrical glass lamp 2, and the optical window 9 of wafer type leads to towards the round reaction zone 6 of cylinder 1
8 internal screw thread of the internal screw thread installing zone mutual cooperation of the screw thread and cylinder 1 of crossing apical ring 5 is tightened, by T-type cylindrical glass lamp 2 and circle
It is sealed between cylinder 1.The gas pressure of the leakproofness of test ion migration tube, sealed chamber is up to 0.16Mpa.
Claims (9)
1. a kind of sealing structure for transference tube, the transference tube includes T-type cylindrical glass lamp (2) and circle
Reaction zone (6), which is characterized in that the T-type cylindrical glass lamp (2) includes the optical window (9) and cylindrical lamp body of wafer type
(10), the outer diameter of the optical window (9) of wafer type is greater than the outer diameter of cylindrical lamp body (10)；The sealing structure includes cylinder (1), pressure
Ring (3), O-ring seal (4), apical ring (5)；The circle reaction zone (6) is located at cylinder (1) inside, goes back inside the cylinder (1)
Including circular glass lamp seal area (7) and internal screw thread installing zone (8), the internal diameter and internal screw thread of circular glass lamp seal area (7) are pacified
The bottom diameter size for filling area (8) is identical, and the internal diameter of the circular glass lamp seal area (7) is greater than the optical window (9) of wafer type
Outer diameter；Apical ring (5) has external screw thread and cooperates with internal screw thread installing zone (8) internal screw thread of cylinder (1), the internal diameter of apical ring (5)
Greater than the outer diameter of cylindrical lamp body (10)；Round reaction zone (6) of the optical window (9) of wafer type towards cylinder (1), passes through apical ring
(5) internal screw thread installing zone (8) mutual cooperation of screw thread and cylinder (1) is tightened, by T-type cylindrical glass lamp (2) and cylinder (1)
Between seal；The pressure ring (3) has two part of large diameter and small internal diameter, and large diameter is partially toward the optical window (9) of wafer type, imperial palace
Diameter is greater than the outer diameter of the optical window (9) of wafer type, and small internal diameter is greater than the outer diameter of cylindrical lamp body (10)；The imperial palace of the pressure ring (3)
Diameter and the width of small internal diameter protrusion part are greater than the thickness of the optical window (9) of wafer type；The outer diameter etc. of the O-ring seal (4)
It is less than T-type cylindrical glass lamp (2) in the internal diameter of the internal diameter of the circular glass lamp seal area (7) of cylinder (1), O-ring seal (4)
Cylindrical lamp body (10) outer diameter；The pressure ring (3), O-ring seal (4) and apical ring (5) are sequentially sleeved in T-type cylindrical glass lamp
(2) outer peripheral surface.
2. sealing structure according to claim 1, it is characterised in that: the internal circular glass lamp seal area (7) of cylinder (1)
Length be greater than pressure ring (3) and O-ring seal (4) the sum of length.
3. sealing structure according to claim 1, it is characterised in that: the length of the imperial palace path portion of pressure ring (3) is greater than T-type
The length of the optical window (9) of the wafer type of cylindrical glass lamp (2).
4. sealing structure according to claim 1, it is characterised in that: the material of O-ring seal (4) is flexible butyronitrile rubber
Glue, silicon rubber, fluorubber, ethylene propylene diene rubber, neoprene.
5. sealing structure according to claim 4, it is characterised in that: the line footpath of O-ring seal (4) is 0.8-3.1 millimeters.
6. sealing structure according to claim 1, it is characterised in that: T-type cylindrical glass lamp (2) replaces with T-type cylinder
Discharge body, the two-way of shape shape.
7. sealing structure according to claim 1, it is characterised in that: mutual by screw thread between apical ring (5) and cylinder (1)
Cooperation is tightened.
8. a kind of transference tube including sealing structure described in claim 1-7 any one.
9. a kind of ionic migration spectrometer including transference tube according to any one of claims 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605380.1U CN209280630U (en) | 2018-09-29 | 2018-09-29 | It is a kind of to move the sealing structure for composing pipe and transference tube and ionic migration spectrometer including the structure for ion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821605380.1U CN209280630U (en) | 2018-09-29 | 2018-09-29 | It is a kind of to move the sealing structure for composing pipe and transference tube and ionic migration spectrometer including the structure for ion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209280630U true CN209280630U (en) | 2019-08-20 |
Family
ID=67603943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821605380.1U Active CN209280630U (en) | 2018-09-29 | 2018-09-29 | It is a kind of to move the sealing structure for composing pipe and transference tube and ionic migration spectrometer including the structure for ion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209280630U (en) |
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2018
- 2018-09-29 CN CN201821605380.1U patent/CN209280630U/en active Active
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