CN206489130U - A kind of online Conductivity detection of resistance to high back pressure flow cell - Google Patents
A kind of online Conductivity detection of resistance to high back pressure flow cell Download PDFInfo
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- CN206489130U CN206489130U CN201620706661.0U CN201620706661U CN206489130U CN 206489130 U CN206489130 U CN 206489130U CN 201620706661 U CN201620706661 U CN 201620706661U CN 206489130 U CN206489130 U CN 206489130U
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- stainless steel
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- trip bolt
- steel casing
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Abstract
The utility model discloses a kind of online Conductivity detection of resistance to high back pressure flow cell, including stainless steel casing, second electrode piece, PEEK electrode slices pad and first electrode piece；Two electrode slices are connected with two electrical leads respectively, and electrode slice is arranged in PEEK electrode slice pads, and contact conductor passes the electrode lead hole of PEEK electrode slice pads side and passed at the outlet slotted eye of stainless steel casing and is connected with the signal wire interface of electric conductivity detector；PEEK electrode slices pad is arranged in stainless steel casing, stainless steel casing two ends are mounted on stainless steel fixing screws, PEEK stainless steel trip bolt pads are installed between stainless steel fixing screws and stainless steel casing, stainless steel fixing screws contact connection with the both ends of PEEK electrode slice pads, fluid bore is provided with boss axle center on PEEK stainless steel trip bolt pads, fluid bore is connected with 1/16 inch of PEEK pipe spacing hole；The utility model can form effective high-pressure-resistant sealed effect, improve the back pressure tolerance of conductance flow cell, and Detection results are good.
Description
Technical field
The utility model is related to using ion chromatograph technical field, is specifically that one kind is used for on-line continuous electric conductivity detector
In the online Conductivity detection of resistance to high back pressure flow cell.
Background technology
The measure of effects of ion type compound is the main contents of classical analysis chemistry, to cation analysis existing one
A little quick and sensitive analysis method, such as Atomic absorption, high-frequency inductive coupling plasma body emission spectrum and x-ray fluorescence analysis
Method etc., and be always volumetric method, the gravimetric method for continuing to use classics to the method for analyzing shortage rapid sensitive for a long time of anion
With photometry etc., these methods are mostly that operating procedure is tediously long time-consuming, need to use a variety of chemical reagent, sensitivity is low and has dry
Disturb.
Chromatography of ions has quick, sensitive, selectivity good and while multi-component advantage is determined, wherein being much current difficulty
With the ion determined with other method, especially anion, analysis of the chromatography of ions to anion is one in analytical chemistry
New breakthrough, if high-frequency inductive coupling plasma body emission spectrum-mass spectrum (ICP-MS) is at present while measure multielement
Quick, sensitive and accurate analysis method if, then while determining the quick, sensitive of a variety of anion and accurately analyzing
Means are when the first-elected chromatography of ions, and ion chromatography analysis anion is most commonly used that electric conductivity detector, and conductance flow cell is
One important part of electric conductivity detector.
With multi-detector combination and the generation of multidimensional analysis technology, cause the demand of the resistance to high back pressure of conductance flow cell more next
Higher, the back pressure tolerance of current conductance flow cell is poor, and its basic reason is, generally using the insulation of polytetrafluoroethylene (PTFE) material
The stainless steel gasket of pad and Passivation Treatment stacks the end face seal realization that extruding is formed, and main implementation method was as shown in figure 1, should
Design method has two kinds, and the first is the elastic big of teflon gasket, is easily deformed, and undue compress will cause to gather
Tetrafluoroethene pad is deformed, and the fluid bore dia for ultimately resulting in centre diminishes, and the fluid bore aperture with electrode slice is inconsistent, then
Cause fluid-flow mode to change, decline conductometric detector Detection results；Second is teflon gasket elasticity
Greatly, when the back pressure of conductance flow cell is higher, radial force in the fluid bore of teflon gasket causes pad to deform,
Then Detection results are influenceed, flow cell will appear from the phenomenon of leakage when serious, ultimately resulting in conductometric detector can not normally use, shadow
The normal of instrument and equipment is rung to use；For these reasons, it is necessary to be improved improvement to the conductance flow cell of prior art with full
Sufficient use demand.
Utility model content
The purpose of this utility model be to provide it is a kind of can improve the back pressure tolerance of conductance flow cell, while also ensureing inspection
The impregnable online Conductivity detection of the resistance to high back pressure flow cell of effect is surveyed, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：
A kind of online Conductivity detection of resistance to high back pressure flow cell, including stainless steel trip bolt, stainless steel casing, first electrode
Lead, second electrode lead, second electrode piece, PEEK electrode slices pad and first electrode piece；The first electrode piece, second electrode
Piece is connected with first electrode lead, second electrode lead respectively, and first electrode piece, second electrode piece are installed in PEEK electrodes
In piece pad, the two ends of the PEEK electrode slices pad offer electrode film trap, and electrode film trap side offers electrode lead hole, electrode
The axis direction of film trap is provided with fluid bore, and the two ends of fluid bore are connected with electrode film trap respectively；First electrode lead, the second electricity
Pole lead passes the electrode lead hole of PEEK electrode slice pads side；The PEEK electrode slices pad is arranged in stainless steel casing, no
It is provided with rust outer steel shell on stainless steel casing internal thread, the shell wall in stainless steel casing center and offers an outlet slotted eye, the
The other end of one contact conductor and second electrode lead is passed at the outlet slotted eye of stainless steel casing, first electrode lead and
Two contact conductors are located at the center of stainless steel casing outlet slotted eye；The stainless steel fixing screws are set to two, respectively
Installed in stainless steel casing two ends；PEEK stainless steels fastening spiral shell is installed between the stainless steel fixing screws and stainless steel casing
Pad is followed closely, two stainless steel fixing screws contact connection with the both ends of PEEK electrode slice pads to realize to PEEK electrode slice pads
It is fixed, it is provided with PEEK stainless steel trip bolt pad boss, PEEK stainless steels on the PEEK stainless steels trip bolt pad
Fluid bore is provided with the axle center of trip bolt pad boss, fluid bore is connected with 1/16 inch of PEEK pipe spacing hole；Described
One contact conductor and second electrode lead are connected respectively to the signal wire interface of electric conductivity detector.
It is used as further program of the utility model：The a diameter of 5mm of the first electrode piece and second electrode piece, electrode slice
Centrally disposed a diameter of 0.5mm through hole, electrode slice thickness is 2mm.
It is used as the utility model further scheme：A diameter of 5mm of the electrode film trap, depth is 2mm.
It is used as the utility model further scheme：The stainless steel casing is set to cylindrical shape, stainless steel casing
Length is 30mm, and internal diameter is 10mm, wall thickness be symmetrically arranged with 3mm, stainless steel casing two dorsad set be used for fix
The platform of PEEK stainless steel trip bolt pads, the circular shaft centre distance of platform outer edge to cylindrical shape stainless steel casing is
7mm。
It is used as the utility model further scheme：The length of the outlet slotted eye is 4mm, and width is 2mm.
It is used as the utility model further scheme：The stainless steel trip bolt be length of side 8mm, length 26mm just
Hex screw, a diameter of 10mm of stainless steel trip bolt, spiro rod length is 18mm, and hex head end length is 8mm.
It is used as the utility model further scheme：Be provided with outside the stainless steel trip bolt with stainless steel casing
The supporting stainless steel trip bolt external screw thread of screw thread, by stainless steel casing between stainless steel fixing screws and stainless steel casing
Screw thread is threadedly coupled with stainless steel trip bolt external screw thread.
It is used as the utility model further scheme：The stainless steel trip bolt be length of side 8mm, length 26mm just
Hex screw, a diameter of 10mm of stainless steel trip bolt, spiro rod length is 18mm, and hex head end length is 8mm；Stainless steel
The nail portion of trip bolt offers stainless steel trip bolt groove, and a diameter of 6mm of stainless steel trip bolt groove is highly
1mm；The hexagon end head of stainless steel trip bolt is provided with 1/16 inch of PEEK and manages hand-tight connection port and 1/16 inch of PEEK pipes limit
Position hole, 1/16 inch of PEEK pipe spacing hole one end is managed hand-tight connection port with 1/16 inch of PEEK and connected, and the other end is tight with stainless steel
Gu screw slots are connected.
It is used as the utility model further scheme：The PEEK stainless steels trip bolt pad boss it is a diameter of
6mm, is highly 1mm, and PEEK stainless steel trip bolt pad boss lower end is provided with pedestal, and susceptor diameter is 5mm, is highly
2mm。
It is used as the utility model further scheme：A diameter of 0.5mm of the fluid bore, 1/16 inch of PEEK pipes limit
A diameter of 1.6mm in position hole, depth is 1mm.
Compared with prior art, the beneficial effects of the utility model are：The utility model is simple in construction, reasonable in design；Adopt
With the spacing design of each part and high-hardness corrosion-resistant plastics PEEK materials and the close contact in stainless steel steel face, form effective resistance to
High pressure seal result, while also ensure that the being consistent property of aperture and concentricity for the pod apertures that fluid is flowed through, both improves electricity
It also ensure that Detection results are unaffected while the back pressure tolerance for leading flow cell；Employ high-hardness corrosion-resistant plastics PEEK
Stainless steel trip bolt pad, it coordinates the uniformity for realizing end face seal and fluid bore with stainless steel trip bolt groove；Using
High-hardness corrosion-resistant plastics PEEK electrode slice pads, realize electrode slice and fluid bore uniformity and end face seal；Using not
The sealed mode of compression of rust steel end face and PEEK end faces realizes resistance to high back pressure, and flow cell integrally can tolerate pressure-resistant below 20MPa
High back pressure.
Brief description of the drawings
Fig. 1 is the structural representation of existing conductance flow cell.
Fig. 2 is general assembly structural representation of the present utility model.
Fig. 3 is the external structure schematic diagram of stainless steel trip bolt in the utility model.
Fig. 4 is A-A faces sectional view in Fig. 3.
Fig. 5 is the external structure schematic diagram of PEEK stainless steel trip bolt pads in the utility model.
Fig. 6 is B-B faces sectional view in Fig. 5.
Fig. 7 is the structural representation of PEEK electrode slice pads in the utility model.
Fig. 8 is C-C faces sectional view in Fig. 7.
Fig. 9 is the structural representation of stainless steel casing in the utility model.
Figure 10 is Fig. 9 D-D faces sectional view.
Wherein, 1-1/16 inches of PEEK manage hand-tight connection port；2- stainless steel trip bolts；3- stainless steel casings；4- first
Contact conductor；5- second electrode leads；6-PEEK stainless steel trip bolt pads；7- stainless steel trip bolt external screw threads；8-1/
16 inches of PEEK pipe spacing holes；9- stainless steel casing internal threads；10- fluid bores；11- second electrode pieces；12- PEEK electrode slices
Pad；13- first electrode pieces；14- electrode lead holes；15- electrode film traps；16- stainless steel trip bolt grooves；17-PEEK stainless steels
Trip bolt pad boss；18- outlet slotted eyes.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Fig. 2-10 are referred to, a kind of online Conductivity detection of resistance to high back pressure flow cell, including 1/16 inch of PEEK manage hand-tight connect
Head mouth 1, stainless steel trip bolt 2, stainless steel casing 3, first electrode lead 4, second electrode lead 5, the fastening of PEEK stainless steels
Screw gasket 6, stainless steel trip bolt external screw thread 7,1/16 inch of PEEK pipes spacing hole 8, stainless steel casing internal thread 9, fluid
Hole 10, second electrode piece 11, PEEK electrode slices pad 12, first electrode piece 13, electrode lead hole 14, electrode film trap 15, stainless steel
Trip bolt groove 16, PEEK stainless steel trip bolt pads boss 17 and outlet slotted eye 18；The first electrode piece 13 and second
The a diameter of 5mm of electrode slice 11, the centrally disposed a diameter of 0.5mm through holes of electrode slice, electrode slice thickness is 2mm, first electrode piece
13rd, second electrode piece 11 is connected with first electrode lead 4, second electrode lead 5 respectively, first electrode piece 13, second electrode piece
11 are installed in PEEK electrode slices pad 12, and the two ends of the PEEK electrode slices pad 12 offer electrode film trap 15, electrode film trap
15 a diameter of 5mm, depth is 2mm, and the side of electrode film trap 15 offers electrode lead hole 14, the axis side of electrode film trap 15
To fluid bore 10 is provided with, the two ends of fluid bore 10 are connected with electrode film trap 15 respectively；First electrode lead 4, second electrode are drawn
Line 5 passes the electrode lead hole 14 of the side of PEEK electrode slices pad 12；The PEEK electrode slices pad 12 is arranged on stainless steel casing 3
Interior, stainless steel casing 3 is set to cylindrical shape, and the length of stainless steel casing 3 is 30mm, and internal diameter is 10mm, and wall thickness is 3mm, stainless
Be provided with outer steel shell 3 be symmetrically arranged with stainless steel casing internal thread 9, stainless steel casing 3 two dorsad set be used for it is solid
Determine the platform of PEEK stainless steel trip bolts pad 6, the circular shaft centre-to-centre spacing of platform outer edge to cylindrical shape stainless steel casing 3
From an outlet slotted eye 18 is offered on the shell wall for the center of 7mm stainless steel casings 3, the length of outlet slotted eye 18 is 4mm, wide
Spend for 2mm, the other end of first electrode lead 4 and second electrode lead 5 is passed at the outlet slotted eye 18 of stainless steel casing 3,
First electrode lead 4 and second electrode lead 5 are located at the center of the outlet slotted eye 18 of stainless steel casing 3；The stainless steel is tight
Gu screw 2 is length of side 8mm, length 26mm positive hex screw, a diameter of 10mm of stainless steel trip bolt 2, spiro rod length is
18mm, hex head end length is 8mm；The nail portion of stainless steel trip bolt 2 offers stainless steel trip bolt groove 16, no
A diameter of 6mm of rust steel trip bolt groove 16, is highly 1mm；The hexagon end head of stainless steel trip bolt 2 is provided with 1/16 English
Very little PEEK manages hand-tight connection port 1 and 1/16 inch of PEEK pipes spacing hole, 8,1/16 inch of one end of PEEK pipes spacing hole 8 and 1/16 English
Very little PEEK manages hand-tight connection port 1 and connected, and the other end is connected with stainless steel trip bolt groove 16；The stainless steel fixing screws 2 are set
Two are set to, is separately mounted to be provided with and stainless steel casing internal thread 9 outside the two ends of stainless steel casing 3, stainless steel trip bolt 2
Supporting stainless steel trip bolt external screw thread 7, passes through spiral shell in stainless steel casing between stainless steel fixing screws 2 and stainless steel casing 3
Line 9 is threadedly coupled with stainless steel trip bolt external screw thread 7；It is provided between the stainless steel fixing screws 2 and stainless steel casing 3
PEEK stainless steel trip bolts pad 6, two stainless steel fixing screws 2 contact connection with the both ends of PEEK electrode slices pad 12
To realize that to be provided with PEEK stainless steels on the fixation to PEEK electrode slices pad 12, the PEEK stainless steels trip bolt pad 6 tight
Gu screw gasket boss 17, a diameter of 6mm of PEEK stainless steel trip bolt pads boss 17, is highly 1mm, PEEK is stainless
The lower end of steel trip bolt pad boss 17 is provided with pedestal, and susceptor diameter is 5mm, is highly 2mm, PEEK stainless steels fastening spiral shell
It is provided with fluid bore 10 at the axle center of nail pad boss 17, a diameter of 0.5mm of fluid bore 10, fluid bore 10 and 1/16 inch
PEEK pipes spacing hole 8 is connected, a diameter of 1.6mm of 1/16 inch of PEEK pipes spacing hole 8, and depth is 1mm；The first electrode is drawn
Line 4 and second electrode lead 5 are connected respectively to the signal wire interface of electric conductivity detector.
Operation principle of the present utility model is：By the first of the online bipolar pulse conductance flow cell of the resistance to high back pressure assembled
Contact conductor 4, second electrode lead 5 are respectively connected to the signal wire interface of electric conductivity detector, while conductance flow cell two ends use 1/
16 inches of PEEK manage hand-tight joints and screwed in manages hand-tight connection port 1 by 1/16 inch of external diameter in 1/16 inch of PEEK, internal diameter 0.5mm's
PEEK pipes are fixed, and ensure that the end face of PEEK pipes is taken in the bottom of 1/16 inch of PEEK pipes spacing hole 8, continuous operation conductance inspection
Survey instrument, you can realize the online Conductivity detection of resistance to high back pressure.
The better embodiment to this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
, can also be on the premise of this patent objective not be departed from formula, the knowledge that one skilled in the relevant art possesses
Various changes can be made.
Claims (10)
1. a kind of online Conductivity detection of resistance to high back pressure flow cell, including stainless steel trip bolt (2), stainless steel casing (3), first
Contact conductor (4), second electrode lead (5), second electrode piece (11), PEEK electrode slices pad (12) and first electrode piece (13)；
Characterized in that, the first electrode piece (13), second electrode piece (11) draw with first electrode lead (4), second electrode respectively
Line (5) is connected, and first electrode piece (13), second electrode piece (11) are installed in PEEK electrode slices pad (12), the PEEK electricity
The two ends of pole piece pad (12) offer electrode film trap (15), and electrode film trap (15) offers electrode lead hole (14), electrode sideways
The axis direction of film trap (15) is provided with fluid bore (10), and the two ends of fluid bore (10) are connected with electrode film trap (15) respectively；The
One contact conductor (4), second electrode lead (5) pass the electrode lead hole (14) of PEEK electrode slices pad (12) side；It is described
PEEK electrode slices pad (12) is arranged in stainless steel casing (3), and stainless steel casing internal thread is provided with stainless steel casing (3)
(9) an outlet slotted eye (18), first electrode lead (4) and second electrode, are offered on the shell wall in stainless steel casing (3) center
The other end of lead (5) is passed from the outlet slotted eye (18) of stainless steel casing (3), first electrode lead (4) and second electrode
Lead (5) is located at the center of stainless steel casing (3) outlet slotted eye (18)；The stainless steel fixing screws (2) are set to two
It is individual, it is separately mounted to stainless steel casing (3) two ends；It is provided between the stainless steel fixing screws (2) and stainless steel casing (3)
PEEK stainless steel trip bolt pads (6), two stainless steel fixing screws (2) contact with the both ends of PEEK electrode slices pad (12)
Connection is provided with PEEK to realize on the fixation to PEEK electrode slices pad (12), the PEEK stainless steels trip bolt pad (6)
Fluid bore is provided with stainless steel trip bolt pad boss (17), the axle center of PEEK stainless steel trip bolt pad boss (17)
(10), fluid bore (10) is connected with 1/16 inch of PEEK pipes spacing hole (8)；The first electrode lead (4) and second electrode are drawn
Line (5) is connected respectively to the signal wire interface of electric conductivity detector.
2. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The first electrode piece
(13) and second electrode piece (11) a diameter of 5mm, the centrally disposed a diameter of 0.5mm of electrode slice through hole, electrode slice thickness is
2mm。
3. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The electrode film trap
(15) a diameter of 5mm, depth is 2mm.
4. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The stainless steel casing
(3) cylindrical shape is set to, the length of stainless steel casing (3) is 30mm, and internal diameter is 10mm, and wall thickness is 3mm, stainless steel casing (3)
Inside it is symmetrically arranged with two platforms for being used to fix PEEK stainless steel trip bolt pads (6) dorsad set, platform outer edge
Circular shaft centre distance to cylindrical shape stainless steel casing (3) is 7mm.
5. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The outlet slotted eye
(18) length is 4mm, and width is 2mm.
6. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The stainless steel fastening
Screw (2) is length of side 8mm, length 26mm positive hex screw, a diameter of 10mm of stainless steel trip bolt (2), spiro rod length
For 18mm, hex head end length is 8mm.
7. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The stainless steel fastening
It is provided with outside screw (2) and fixes spiral shell with the supporting stainless steel trip bolt external screw thread of stainless steel casing internal thread (9) (7), stainless steel
Pass through stainless steel casing internal thread (9) and stainless steel trip bolt external screw thread (7) screw thread between nail (2) and stainless steel casing (3)
Connection.
8. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The stainless steel fastening
Screw (2) is length of side 8mm, length 26mm positive hex screw, a diameter of 10mm of stainless steel trip bolt (2), spiro rod length
For 18mm, hex head end length is 8mm；The nail portion of stainless steel trip bolt (2) offers stainless steel trip bolt groove
(16), a diameter of 6mm of stainless steel trip bolt groove (16), is highly 1mm；The hexagon end head of stainless steel trip bolt (2) is set
It is equipped with 1/16 inch of PEEK and manages hand-tight connection port (1) and 1/16 inch of PEEK pipes spacing hole (8), 1/16 inch of PEEK pipe spacing hole
(8) one end is managed hand-tight connection port (1) with 1/16 inch of PEEK and connected, and the other end is connected with stainless steel trip bolt groove (16).
9. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The PEEK stainless steels
A diameter of 6mm of trip bolt pad boss (17), is highly 1mm, PEEK stainless steels trip bolt pad boss (17) lower end
Pedestal is provided with, susceptor diameter is 5mm, is highly 2mm.
10. the online Conductivity detection of resistance to high back pressure flow cell according to claim 1, it is characterised in that：The fluid bore
(10) a diameter of 0.5mm, a diameter of 1.6mm of 1/16 inch of PEEK pipes spacing hole (8), depth is 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706661.0U CN206489130U (en) | 2016-07-06 | 2016-07-06 | A kind of online Conductivity detection of resistance to high back pressure flow cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620706661.0U CN206489130U (en) | 2016-07-06 | 2016-07-06 | A kind of online Conductivity detection of resistance to high back pressure flow cell |
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| CN206489130U true CN206489130U (en) | 2017-09-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763547A (en) * | 2020-12-30 | 2021-05-07 | 安徽皖仪科技股份有限公司 | Conductivity detection system based on dipolar conductivity cell |
-
2016
- 2016-07-06 CN CN201620706661.0U patent/CN206489130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763547A (en) * | 2020-12-30 | 2021-05-07 | 安徽皖仪科技股份有限公司 | Conductivity detection system based on dipolar conductivity cell |
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