CN209198379U - It is able to carry out the pH flow cell device of flow path switching - Google Patents
It is able to carry out the pH flow cell device of flow path switching Download PDFInfo
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- CN209198379U CN209198379U CN201821887860.1U CN201821887860U CN209198379U CN 209198379 U CN209198379 U CN 209198379U CN 201821887860 U CN201821887860 U CN 201821887860U CN 209198379 U CN209198379 U CN 209198379U
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Abstract
The utility model discloses a kind of pH flow cell device for being able to carry out flow path switching, the second connecting hole that the first connecting hole that there is stator the first receiving hole, the second receiving hole, the detection hole for connecting pH electrode, the fluid hole that middle part is connected with the second receiving hole and inner end is connected with detection hole, one end to be connected with fluid hole, one end are connected with detection hole；The first rotor includes the top being pivotally disposed in the first receiving hole, and top offers inlet opening, and lower part offers link slot；Second rotor is pivotable and can be axially movably arranged in the second receiving hole along itself, and intercommunicating pore is offered on the second rotor, and bitrochanteric one end has the protrusion being slidably attached in driver slot, and the first rotor drives the rotation of the second rotor.The utility model can selectively carry out the switching of flow path, can extend the service life of electrode well by rotation the first rotor.
Description
Technical field
The utility model relates to a kind of pH flow cell devices for being able to carry out flow path switching.
Background technique
Using the important link that the pH value detection that PH electrode carries out mobile phase is in liquid chromatogram, if effect includes
Dry aspect, including but not limited to: a. determines the polarity size with separation component: when the polarity with separation component is larger, than if any
Machine weak acid or organic weak base etc., pH value difference will affect organic acids and base there are type bodies, in the presence of a large amount of ionic components, meeting
Change the distribution coefficient of component to be separated, to change separating degree；B. chromatographic column is usually constructed with the pH range used, mobile phase
PH value is too high or too low, can destroy the Silica Surface of chromatographic column, leads to the damage of chromatographic column.The detection of pH electrode very dependent on
One layer very thin of hydrated gel layer of its end ball bulb glass film surface, it is characterized in that: a. is only in the condition being sufficiently humidified so as to
It is lower could be with the H in solution+Ion has good reaction；B. ball bubble is impregnated by particular solution, and asymmetric potential can be made big
Decline greatly and tend to stable, to accelerate electrode response, improve accuracy, common soak have the buffer of the pH containing KCl=4 or
Distilled water etc..
But in existing chromatographic apparatus, pH electrode flow-through cell is often a component part for being used as chromatographic isolation primary flow path
Existing, entire separation process can pass through pH flow cell by all reagents of flow path, and wherein quite a few reagent is
Reagents that do not need individually to detect its pH value or even certain, which can steep ball electrode, adversely affect；Since above procedure is to hold
Continuous to carry out, the immersion of ball electrode bubble cannot achieve in the operating condition, the effect of in order to guarantee electrode, it has to depend on people
Work replacement, is impregnated, or seriously affect the service life of electrode in outside.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of pH flow cells for being able to carry out flow path switching
Device.
In order to reach the goals above, the technical solution adopted in the utility model is: a kind of pH being able to carry out flow path switching
Flow cell device, it includes stator, the first rotor, the second rotor,
Stator has the first receiving hole being provided at center axis thereof, accommodates along second that the radial direction of stator opens up
Hole, the upper end of the first receiving hole are inlet, the detection hole for connecting pH electrode are also opened up on stator, middle part is accommodated with second
Hole be connected and outer end through stator side surface and the fluid hole that is connected with detection hole of inner end, one end be connected with fluid hole
The second connecting hole that logical the first connecting hole, one end are connected with detection hole, one end of fluid hole are liquid outlet, the first connecting hole
Connectivity part with fluid hole is between liquid outlet and the second receiving hole；
The first rotor includes being inserted into and being pivotally disposed at upper in the first receiving hole from the lower end of the first receiving hole
Portion, positioned at stator lower section and be connected to the motor the lower part connect, top offers the inlet opening that upper end is connected with inlet, on
The side surface in portion offers the driver slot of arc, and lower part offers that one end is connected with the other end of inlet opening and the other end can
It is connected or is detached from the other end of the other end of the first connecting hole and the second connecting hole respectively by the rotation of the first rotor
Link slot；
Second rotor is pivotable and can be axially movably arranged in the second receiving hole along itself, offers on the second rotor
Can by the it is bitrochanteric rotate the intercommunicating pore that be connected or be detached from fluid hole, bitrochanteric one end is with protruding into the
One receiving hole and it is slidably attached at the protrusion in driver slot, the first rotor passes through driver slot and protrusion in own rotation
Cooperation drive the second rotor rotation；
PH flow cell device at least has straight-through working condition, detection working condition, when it is in straight-through working condition,
The other end of link slot is connected with the other end of the first connecting hole and is separated with the other end of the second connecting hole, intercommunicating pore with
Fluid hole is separated and the second rotor blocks fluid hole in the second receiving hole；When pH flow cell device is in detection work shape
When state, the first rotor rotation makes one end of the other end of link slot and the first connecting hole be separated and another with the second connecting hole
End is connected, and the rotation of the second rotor makes intercommunicating pore be connected with fluid hole.
Further, the inner end of detection hole is detection zone, and pH flow cell device also has maintenance state, when it
When in maintenance state, the other end of link slot is connected and another with the second connecting hole with the other end of the first connecting hole
One end is separated, and intercommunicating pore is separated with fluid hole and the second rotor blocks fluid hole in the second receiving hole, detection zone
In hydraulically full and liquid it is static.
Further, the side surface of stator is run through in the outer end of the second receiving hole and inner end is communicated with the first receiving hole, and second
It is connected with plug at the outer end of receiving hole, is provided with compressed spring between plug and the bitrochanteric other end.
Further, the other end of the other end of the first connecting hole and the second connecting hole runs through the lower surface of stator.
Further, the other end of the other end of the first connecting hole and the second connecting hole is with the axial line of stator apart from phase
Deng, and axial line passes through the vertical line of the first connecting hole other end and the vertical line by the second connecting hole other end of axial line
Angle be 90 °.
Further, when pH flow cell device is transitioned into detection working condition from straight-through working condition, the first rotor rotation
90 °, the second rotor rotates 90 °.
Further, inlet opening is provided with the axis line location of the first rotor.
Further, link slot being arranged radially along the first rotor.
Further, sealing ring is provided between the lower part of the first rotor and the lower surface of stator, it is close that link slot is located at this
The inside of seal.
Further, motor is stepper motor.
By using above-mentioned technical proposal, the utility model is able to carry out the pH flow cell device of flow path switching, by turning
Dynamic the first rotor, can selectively carry out the switching of flow path, when not needing to carry out pH detection, liquid can be made to cross pH electricity
Pole and directly into next component, so that the ball soaking of electrode is steeped by the handoff functionality of flow path and reach in a liquid
To the effect of maintenance, the service life of electrode can be extended well.
Detailed description of the invention
Attached drawing 1 is the schematic view of the front view for the pH flow cell device that the utility model is able to carry out flow path switching；
Attached drawing 2 be in attached drawing 1 A-A to schematic cross-sectional view；
Attached drawing 3 is B-B direction schematic cross-sectional view in attached drawing 1, wherein pH flow cell device is in straight-through working condition；
Attached drawing 4 is B-B direction schematic cross-sectional view in attached drawing 1, wherein pH flow cell device is in detection working condition；
Attached drawing 5 is the structural schematic diagram that the utility model is able to carry out stator in the pH flow cell device of flow path switching；
Attached drawing 6 is the structural representation that the utility model is able to carry out the first rotor in the pH flow cell device of flow path switching
Figure；
Attached drawing 7 is that the utility model is able to carry out bitrochanteric structural representation in the pH flow cell device of flow path switching
Figure.
Figure label are as follows:
10, stator；11, the first receiving hole；111, inlet；12, the second receiving hole；13, fluid hole；131, liquid outlet；
14, detection hole；15, the first connecting hole；16, the second connector；
20, the first rotor；21, inlet opening；22, driver slot；23, link slot；
30, the second rotor；31, intercommunicating pore；32, protrusion；
40, plug；
50, compressed spring；
60, sealing ring.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature.
With reference to figures 1 through attached drawing 7, in the present embodiment, it includes stator 10, first turn of the connection that rotates with stator 10
Son 20 and the second rotor 30, and the first rotor 20 can drive the second rotor 30 to rotate while rotation, it is specific to tie
Structure is as follows.
Stator 10 has the first receiving hole 11 being provided at center axis thereof, second opened up along the radial direction of stator 10
Receiving hole 12.Specifically, the first receiving hole 11 is through-hole, and the upper end is inlet 111.Specifically, second receiving hole 12
The side surface of stator 10 is run through in outer end and inner end is communicated with the first receiving hole 11.
The detection hole 13 for connecting pH electrode is also provided on stator 10, middle part is connected with the second receiving hole 12 and
The fluid hole 13 that the side surface of stator 10 is run through in outer end and inner end is connected with detection hole 14.One end of fluid hole 13 is liquid outlet
131.The inner end of detection hole 14 is detection zone.
The first connecting hole 15, one end that one end is connected with fluid hole 13 is also provided on stator 10 to be connected with detection hole 14
The second logical connecting hole 16.The connectivity part of first connecting hole 15 and fluid hole 13 be located at liquid outlet 131 and the second receiving hole 12 it
Between.Specifically, the other end of the other end of the first connecting hole 15 and the second connecting hole 16 runs through the lower surface of stator 10.One
In kind highly preferred embodiment, the other end of the other end of the first connecting hole 15 and the second connecting hole 16 and the axis of stator 10
Heart linear distance is equal, and passes through 16 other end of the second connecting hole by the vertical line of 15 other end of the first connecting hole and axial line
The angle of vertical line be 90 °.The first connecting hole 15 in the present embodiment is a hole being obliquely installed, and the second connecting hole 16 is parallel to
Axial line setting.
The first rotor 20 includes being inserted into from the lower end of the first receiving hole 11 and being pivotally disposed at the first receiving hole 11
Interior top, the lower section positioned at stator 10 and the lower part that is connected with motor (being not drawn into attached drawing).Specifically the first rotor 20
Lower part be connected with the output shaft of motor by shaft coupling (being not drawn into attached drawing).Above-mentioned motor is preferably stepper motor.
Top offers the inlet opening 21 that upper end is connected with inlet 111, and the side surface on top offers the drive of arc
Dynamic slot 22.Specifically, inlet opening 21 is provided with the axis line location of the first rotor 20.
Lower part offer one end be connected with the other end of inlet opening 21 and the other end can by the first rotor 20 turn
The link slot 23 for moving and being connected or be detached from the other end of the other end of the first connecting hole 15 and the second connecting hole 16 respectively.Tool
Body, link slot 23 are arranged radially along the first rotor 20, and its length is equal to the first above-mentioned connecting hole 15 and second and connects
Connect the axial line distance in hole 16 Yu stator 10.
In a kind of highly preferred embodiment, it is provided between the lower part of the first rotor 20 and the lower surface of stator 10
Sealing ring 60, link slot 23 are located at the inside of the sealing ring 60.In the present embodiment, the lower part fitting stator 10 of the first rotor 20
Lower surface offers annular groove (indicating in attached drawing) in the lower surface of stator 10, and above-mentioned sealing ring 60 is arranged at this
In annular groove.
The rotational angle stroke of the first rotor is not less than 90 °.
Second rotor 30 is pivotable and can be axially movably arranged at along itself in the second receiving hole 12, on the second rotor 30
Offer the intercommunicating pore 31 that can be connected or be detached from fluid hole 13 by the rotation of the second rotor 30.In the present embodiment
Intercommunicating pore 31 is the through-hole radially opened up along the second rotor 30.
One end of second rotor 30, which has, to be protruded into the first receiving hole 11 and is slidably attached at convex in driver slot 22
Portion 32, cooperation of the first rotor 20 in own rotation through driver slot 22 and protrusion 32 drive the rotation of the second rotor 30.This reality
The protrusion 30 in example is applied as spherical or hemispherical.In a kind of highly preferred embodiment, at the outer end of the second receiving hole 12
It is connected with plug 40, is provided with compressed spring 50 between plug 40 and the other end of the second rotor 30.In the work of compressed spring 50
Under, it is connected to the protrusion 32 of the second rotor 30 always in the driver slot 22 of the first rotor 20.
PH flow cell device at least has straight-through working condition, detection working condition, maintenance state, when it is in straight
When logical working condition, the other end of link slot 23 is connected and another with the second connecting hole 16 with the other end of the first connecting hole 15
One end is separated, and intercommunicating pore 31 is separated with fluid hole 13 and the second rotor 30 hinders fluid hole 13 in the second receiving hole 12
It is disconnected；When pH flow cell device is in detection working condition, the first rotor 20 rotates the other end for making link slot 23 and first and connects
The one end for connecing hole 15 is separated and is connected with the other end of the second connecting hole 16, and the rotation of the second rotor 30 makes intercommunicating pore 31 and goes out
Fluid apertures 13 is connected, when pH flow cell device is in maintenance state, the other end of link slot 23 and the first connecting hole 15
The other end be connected and be separated with the other end of the second connecting hole 16, intercommunicating pore 31 and fluid hole 13 are separated and second turn
Son 30 blocks fluid hole 13 in the second receiving hole 12, and hydraulically full in detection zone and liquid is static.
When pH flow cell device is transitioned into detection working condition from straight-through working condition, 90 ° of the rotation of the first rotor 20, second
Rotor 30 rotates 90 °.
Working principle:
A. motor control the first rotor 20 rotates, and so that link slot 23 is connected with the first connecting hole 15, while the first rotor
20 driving the second rotor 30 rotations are to position shown in attached drawing 3, and intercommunicating pore 31 is separated with fluid hole 13, thus the second rotor 30
It is blocked in the second receiving hole 12 from the middle part of fluid hole 13 by fluid hole 13, at this point, pH flow cell device is in straight-through work
State, reagent enter from inlet 111, inlet opening 31, link slot 23 through the first rotor 20, connect using the first of stator 10
It connects hole 15 and flow to fluid hole 13, since the middle part of fluid hole 13 is blocked by the second rotor 30, so reagent will not flow to detection
Hole 14, but be discharged from liquid outlet 131；
B. motor control the first rotor 20 is rotated by 90 °, and so that link slot 23 is connected with the second connecting hole 16, while first turn
Son 20 drive the second rotor 30 rotation to position shown in attached drawing 3, intercommunicating pore 31 is connected with fluid hole 13, liquid outlet 131 and
It is connected between detection hole 14, at this point, pH flow cell device is in detection working condition, reagent enters from inlet 111, through first
Inlet opening 31, the link slot 23 of rotor 20 flow to detection hole 14 using the second connecting hole 16 of stator 10, then by going out liquid
The intercommunicating pore 31 of hole 13(and the second rotor 30), it is discharged from liquid outlet 131；
C. according to above-mentioned B-mode, reagent is soak, after the detection zone filling that will test hole 14 with soak, rotation
The first rotor 10 makes to switch to mode A, at this point, pH flow cell device is in maintenance state, soak is preferably controlled
In detection zone and its near zone, achieve the purpose that ball electrode soaking bubble, maintenance, nor affects on replacement pH electricity manually
The operation of pole；When needing to clear up soak, Mode B only need to be switched to again, will be stored in the leaching in flow path B using other liquid
Bubble liquid band is walked.
Originally it is able to carry out the pH flow cell device of flow path switching, by rotating the first rotor, the second rotor of driving turns simultaneously
It is dynamic, the switching of flow path can be selectively carried out, when not needing to carry out pH detection, liquid can be made to cross pH electrode and direct
To next component, it so that the ball soaking of electrode is steeped by the handoff functionality of flow path and reach maintenance guarantor in a liquid
Feeding effect can extend the service life of electrode well.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of pH flow cell device for being able to carry out flow path switching, it is characterised in that: it includes stator (10), the first rotor
(20), the second rotor (30),
The stator (10) has the first receiving hole (11) being provided at center axis thereof, along the diameter of the stator (10)
To the second receiving hole (12) opened up, the upper end of first receiving hole (11) is inlet (111), on the stator (10)
Also open up the detection hole (14) for connecting pH electrode, middle part is connected with second receiving hole (12) and outer end is through institute
State the side surface of stator (10) and fluid hole (13) that inner end is connected with the detection hole (14), one end and the fluid hole
(13) the second connecting hole (16) that the first connecting hole (15) for being connected, one end are connected with the detection hole (14), it is described go out
One end of fluid apertures (13) is liquid outlet (131), and the connectivity part of first connecting hole (15) and fluid hole (13) is located at described
Between liquid outlet (131) and the second receiving hole (12)；
The first rotor (20) includes that the is inserted into and be pivotally disposed at from the lower end of first receiving hole (11)
Top in one receiving hole (11), the lower section for being located at the stator (10) are simultaneously connected to the motor the lower part connect, and the top opens up
The inlet opening (21) for having upper end to be connected with the inlet (111), the side surface on the top offer the driver slot of arc
(22), the lower part offers that one end is connected with the other end of the inlet opening (21) and the other end can be by first turn
The rotation of sub (20) and be connected or take off with the other end of the other end of the first connecting hole (15) and the second connecting hole (16) respectively
From link slot (23)；
Second rotor (30) is pivotable and can be axially movably arranged at along itself in second receiving hole (12), institute
It states and is offered on the second rotor (30) and can be connected or take off with the fluid hole (13) by the rotation of the second rotor (30)
From intercommunicating pore (31), one end of second rotor (30), which has, to be protruded into first receiving hole (11) and slideably connects
Connect the protrusion (32) in the driver slot (22), the first rotor (20) in own rotation by driver slot (22) with it is convex
The cooperation in portion (32) drives the second rotor (30) rotation；
The pH flow cell device at least has straight-through working condition, detection working condition, when it is in straight-through working condition,
The other end of the link slot (23) is connected and another with the second connecting hole (16) with the other end of the first connecting hole (15)
End is separated, and the intercommunicating pore (31) is separated with fluid hole (13) and second rotor (30) is in the second receiving hole (12)
The fluid hole (13) are blocked；When the pH flow cell device is in detection working condition, the first rotor (20) turns
It is dynamic that one end of the other end of the link slot (23) and the first connecting hole (15) is made to be separated and another with the second connecting hole (16)
One end is connected, and the second rotor (30) rotation makes the intercommunicating pore (31) be connected with fluid hole (13).
2. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: the detection hole
(14) inner end is detection zone, and the pH flow cell device also has maintenance state, when it is in maintenance shape
When state, the other end of the link slot (23) be connected with the other end of the first connecting hole (15) and with the second connecting hole (16)
The other end is separated, and the intercommunicating pore (31) is separated with fluid hole (13) and second rotor (30) is in the second receiving hole
(12) fluid hole (13) are blocked in, hydraulically full and liquid is static in the detection zone.
3. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: described second
The side surface of the stator (10) is run through in the outer end of receiving hole (12) and inner end is communicated with the first receiving hole (11), and described second holds
Receive hole (12) outer end at be connected with plug (40), be provided with pressure between the plug (40) and the other end of the second rotor (30)
Contracting spring (50).
4. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: described first connects
The other end of the other end and the second connecting hole (16) that connect hole (15) runs through the lower surface of the stator (10).
5. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: described first connects
The other end and the second connecting hole (16) other end and the axial line of the stator (10) for connecing hole (15) are equidistant, and described
The vertical line by the first connecting hole (15) other end of axial line and the axial line it is another by the second connecting hole (16)
The angle of the vertical line of one end is 90 °.
6. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: the pH circulation
When pool device is transitioned into detection working condition from straight-through working condition, the first rotor (20) rotates 90 °, described second turn
Sub (30) rotate 90 °.
7. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: the feed liquor
Hole (21) is provided with the axis line location of the first rotor (20).
8. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: the connection
Slot (23) being arranged radially along the first rotor (20).
9. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: described first turn
It is provided with sealing ring (60) between the lower part of sub (20) and the lower surface of stator (10), the link slot (23) is located at the sealing
Enclose the inside of (60).
10. the pH flow cell device according to claim 1 for being able to carry out flow path switching, it is characterised in that: the electricity
Machine is stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887860.1U CN209198379U (en) | 2018-11-16 | 2018-11-16 | It is able to carry out the pH flow cell device of flow path switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821887860.1U CN209198379U (en) | 2018-11-16 | 2018-11-16 | It is able to carry out the pH flow cell device of flow path switching |
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| Publication Number | Publication Date |
|---|---|
| CN209198379U true CN209198379U (en) | 2019-08-02 |
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ID=67424533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821887860.1U Active CN209198379U (en) | 2018-11-16 | 2018-11-16 | It is able to carry out the pH flow cell device of flow path switching |
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| CN (1) | CN209198379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406594A (en) * | 2018-11-16 | 2019-03-01 | 苏州赛谱仪器有限公司 | It is able to carry out the pH flow cell device of flow path switching |
-
2018
- 2018-11-16 CN CN201821887860.1U patent/CN209198379U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109406594A (en) * | 2018-11-16 | 2019-03-01 | 苏州赛谱仪器有限公司 | It is able to carry out the pH flow cell device of flow path switching |
| CN109406594B (en) * | 2018-11-16 | 2024-01-02 | 苏州赛谱仪器有限公司 | PH flow cell device capable of switching flow paths |
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