CN108169570B - Steady state detection conductivity meter with flow path - Google Patents
Steady state detection conductivity meter with flow path Download PDFInfo
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- CN108169570B CN108169570B CN201810022840.6A CN201810022840A CN108169570B CN 108169570 B CN108169570 B CN 108169570B CN 201810022840 A CN201810022840 A CN 201810022840A CN 108169570 B CN108169570 B CN 108169570B
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- positioning clamping
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- 238000001514 detection method Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims description 2
- 108010066114 cabin-2 Proteins 0.000 description 4
- 108010066057 cabin-1 Proteins 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033558 biomineral tissue development Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/22—Measuring resistance of fluids
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention relates to a steady state detection conductivity meter with a flow path, which comprises a vertically arranged measuring bin, wherein a data processing unit and a power interface connected with the data processing unit are arranged at the upper part of the measuring bin through a sealed bin, and a barrel-shaped measuring external electrode and a cylindrical measuring internal electrode are arranged at the lower part of the measuring bin, and the steady state detection conductivity meter is characterized in that: the measuring external electrode is provided with cylindrical positioning clamping groove at the bottom of the measuring bin, the bottom of the measuring internal electrode is provided with a convex annular bottom positioning clamping protrusion, the positioning clamping groove and the bottom positioning clamping protrusion form plug-in fit, the outer surface of the bottom positioning clamping protrusion is provided with a plurality of spiral grooves which are spiral in the vertical direction, the junction of the measuring external electrode at the bottom of the measuring bin and the liquid inlet is provided with a flared diverging groove with an upward opening, the bottom of the bottom positioning clamping protrusion is provided with an inverted cone-shaped guide body, and the guide body and the diverging groove are coaxially arranged in the vertical direction. The invention has high coaxiality and does not influence the measurement linearity.
Description
Technical Field
The invention relates to the technical field of water quality measurement, in particular to a steady state detection conductivity meter with a flow path.
Background
The conductivity meter is a meter capable of measuring the conductivity of water and deducing the mineralization degree of the water according to a measured standard curve. However, on the existing water quality measurement conductivity meter, the water quality measurement conductivity meter generally comprises a measurement bin, a power supply, a conductivity measurement circuit and an electrode plate which are vertically arranged, wherein the upper end of the measurement bin is sealed, the lower end of the measurement bin is provided with a liquid inlet, an inner barrel-shaped electrode and an outer barrel-shaped electrode are embedded in the measurement bin, the power supply and the conductivity measurement circuit are sealed at the upper end of the measurement bin and are connected with the electrodes, and the conductivity between the inner barrel-shaped electrode and the outer barrel-shaped electrode is measured.
Disclosure of Invention
The invention aims to provide the steady-state detection conductivity meter with the flow path, which overcomes the defects of the prior art, has a simple structure and convenient use, has high coaxiality and does not influence the measurement linearity.
In order to achieve the above purpose, the technical means adopted by the invention are as follows:
the utility model provides a from steady state detection conductivity meter of taking flow path, including the measurement storehouse of vertical setting, link up through the sealed cabin and be equipped with data processing unit and rather than the power source who links to each other in the upper portion of measurement storehouse, the lower extreme intercommunication of measurement storehouse has the inlet, the upper portion intercommunication of measurement storehouse has the liquid outlet, be equipped with barrel-shaped measurement outer electrode and columniform measurement inner electrode in the lower part of measurement storehouse, measurement outer electrode and measurement inner electrode all are connected with data processing unit and power source electricity, leave the clearance between measurement outer electrode and the measurement inner electrode and form liquid measurement passageway, the key lies in: the measuring external electrode is provided with cylindrical positioning clamping groove at the bottom of the measuring bin, the inner diameter of the positioning clamping groove is smaller than that of the measuring external electrode, the bottom of the measuring internal electrode is provided with a convex annular bottom positioning clamping protrusion, the positioning clamping groove and the bottom positioning clamping protrusion form a plug-in fit, the inner diameter of the positioning clamping groove is equal to the outer diameter of the bottom positioning clamping protrusion, the outer surface of the bottom positioning clamping protrusion is provided with a plurality of spiral grooves which are spiral in the vertical direction, the joint of the measuring external electrode at the bottom of the measuring bin and the liquid inlet is provided with a belled diverging groove with an upward opening, the bottom of the bottom positioning clamping protrusion is provided with an inverted cone-shaped guide body, the guide body and the diverging groove are coaxially arranged in the vertical direction, and the bottom opening of the diverging groove is communicated with the liquid inlet.
The measuring inner electrode is provided with an inverted frustum-shaped top positioning body at a position opposite to the liquid outlet, and a frustum-shaped drainage body is arranged below the top positioning body.
The helix angle of the spiral groove is 30-60 degrees.
The height of the positioning clamping groove is 10mm, the height of the bottom positioning clamping protrusion is the same as that of the positioning clamping groove, the bottom positioning clamping protrusion and the measuring inner electrode are of split type structures, a cylindrical plug connector is arranged at the bottom end of the measuring inner electrode, the bottom positioning clamping protrusion is provided with a cylindrical plug groove, the plug connector and the plug groove are in plug fit, and the bottom positioning clamping protrusion and the central axis of the measuring inner electrode and the central axis of the measuring outer electrode are overlapped.
The outer diameter of the bottom positioning clamp is 16mm, and the gap between the measuring outer electrode and the measuring inner electrode is 2.5mm.
The top locating body and the measuring inner electrode are of split type structures, the top of the top locating body is fixedly inserted into the sealed cabin, a cylindrical slot is formed in the middle shaft part of the top locating body, a cylindrical plug connector is arranged at the top of the measuring inner electrode, the plug connector is matched with the plug slot in a plug manner, and the top locating body is overlapped with the central axes of the measuring inner electrode and the measuring outer electrode.
The beneficial effects of the invention are as follows: because the measuring external electrode is provided with the cylindrical positioning clamping groove, and the measuring internal electrode is provided with the bottom positioning clamping protrusion matched with the measuring internal electrode in an inserting way, the coaxiality of the electrode during assembly can be ensured, the coaxiality of the electrode can not be ensured, deviation caused by installation or shaking is avoided, the measuring linearity is not influenced due to the measurement difference, the normal measuring main factor is that the axial area of the measuring electrode is not influenced, the measuring linearity is influenced due to the fact that the electrode is inserted into the measuring value by the end face in the past or the existing device, and the measuring linearity is prevented from being influenced by the fact that the end face of the electrode is covered and shielded by the positioning clamping protrusion made of insulating materials.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of an assembly structure of the bottom positioning card protrusion and the measuring inner electrode in fig. 1.
Fig. 3 is a schematic diagram of an assembly structure of the top positioning body and the measuring inner electrode in fig. 1.
Detailed Description
The invention relates to a steady-state detection conductivity meter with a flow path, which is characterized in that a cylindrical positioning clamping groove is arranged on a measurement outer electrode, and a bottom positioning clamping protrusion which is in plug-in fit with the measurement inner electrode is arranged on the measurement outer electrode, so that coaxiality of the electrode during assembly can be ensured, deviation caused by installation or shaking can be avoided, measurement difference generated thereby can be avoided, and measurement linearity can not be influenced.
The invention will be further described with reference to the drawings and specific examples.
The specific embodiment is shown in figures 1 to 3, the steady state conductivity detector with a flow path comprises a measuring bin 1 which is vertically arranged, a data processing unit 3 and a power interface 4 connected with the data processing unit are assembled at the upper part of the measuring bin 1 in a connecting way through a sealing bin 2, a liquid inlet 5 is communicated with the lower end of the measuring bin 1, a liquid outlet 6 is communicated with the upper part of the measuring bin 1, a barrel-shaped measuring external electrode 7 and a cylindrical measuring internal electrode 8 are assembled at the lower part of the measuring bin 1, the measuring external electrode 7 and the measuring internal electrode 8 are electrically connected with the data processing unit 3 and the power interface 4, a gap is reserved between the measuring external electrode 7 and the measuring internal electrode 8 to form a liquid measuring path, a cylindrical positioning clamping groove 9 is arranged at the bottom of the measuring bin 1, the inner diameter of the positioning clamping groove 9 is smaller than the inner diameter of the measuring external electrode 7, the bottom of the measuring inner electrode 8 is provided with a convex annular bottom positioning clamp protrusion 10, the positioning clamp groove 9 and the bottom positioning clamp protrusion 10 form plug-in fit, the inner diameter of the positioning clamp groove 9 is equal to the outer diameter of the bottom positioning clamp protrusion 10, the outer surface of the bottom positioning clamp protrusion 10 is provided with a plurality of spiral grooves which are spiral with the vertical direction, the spiral grooves aim at rapidly and uniformly updating the liquid in the measuring bin 1, the updating of the liquid around the measuring outer electrode 7 and the measuring inner electrode 8 is ensured, the flow velocity is the same, the spiral angles of the spiral grooves are preferably 30-60 degrees, the measuring outer electrode 7 is provided with a bell-mouth-shaped divergence groove 11 with an upward opening at the joint of the bottom of the measuring bin 1 and the liquid inlet 5, the bottom end of the bottom positioning clamp protrusion 10 is provided with an inverted cone-shaped guide body 12, the guide body 12 and the divergence groove 11 are coaxially arranged in the vertical direction, the bottom opening of the diverging slot 11 communicates with the liquid inlet 5.
The measuring inner electrode 8 is provided with an inverted frustum-shaped top positioning body 13 at a position opposite to the liquid outlet 6, the top positioning body 13 plays a role in avoiding eccentricity in a guiding direction when the measuring outer electrode 7 is installed, so that coaxiality between the measuring outer electrode 7 and the measuring inner electrode 8 after installation is further ensured, and a frustum-shaped guiding body 14 is arranged below the top positioning body 13.
In order to ensure coaxiality, the height of the positioning clamping groove 9 is 10mm, the height of the bottom positioning clamping protrusion 10 is the same as that of the positioning clamping groove 9, the bottom positioning clamping protrusion 10 and the measuring inner electrode 8 are of a split structure, the material of the positioning clamping protrusion 10 is an insulating material, preferably polytetrafluoroethylene, a cylindrical plug connector is arranged at the bottom end of the measuring inner electrode 8, the bottom positioning clamping protrusion 10 is provided with a cylindrical plug groove, the plug connector is matched with the plug groove in a plug manner, the bottom positioning clamping protrusion 10 is overlapped with the central axes of the measuring inner electrode 8 and the measuring outer electrode 7, and the end face of the measuring inner electrode 8 is also a main factor affecting the measuring nonlinearity and commonly called as an edge effect, the end face of the measuring inner electrode 8 is completely wrapped by the bottom positioning clamping protrusion 10, and the sealing gasket is adopted to seal the edge effect of the end part of the measuring inner electrode 8, the linearity of the measuring device is ensured, the outer diameter of the bottom positioning clamping protrusion 10 is preferably 16mm, and the gap between the measuring outer electrode 7 and the measuring inner electrode 8 is preferably 2.5mm; the top locating body 13 and the measuring inner electrode 8 are of split type structures, the top of the top locating body 13 is fixedly inserted into the sealed cabin 2, a cylindrical slot is formed in the middle shaft part of the top locating body 13, a cylindrical plug is arranged at the top of the measuring inner electrode 8 and is matched with the plug in slot in a plug-in mode, the central axes of the top locating body 13, the measuring inner electrode 8 and the measuring outer electrode 7 are overlapped, and finally the top locating body 13, the bottom locating clamp protrusion 10, the measuring inner electrode 8 and the central axes of the measuring outer electrode 7 are overlapped.
When the measuring device is used, the data processing unit 3 is assembled into the sealed cabin 2 and is electrically connected with the power interface 4, then the sealed cabin 2 and the liquid measuring passage are sealed by using the sealing gasket to prevent liquid from entering the sealed cabin 2, then the measuring inner electrode 8 is inserted into the measuring outer electrode 7, the bottom positioning clamp protrusion 10 is in plug-in fit with the positioning clamp groove 9, and the measuring outer electrode 7, the measuring inner electrode 8, the positioning clamp groove 9 and the bottom positioning clamp protrusion 10 are coaxially arranged, so that the coaxiality of electrodes of the conductivity meter is not deviated after the measuring device is installed, the linear measuring result is not influenced, when liquid enters the measuring cabin 1 from the liquid inlet 5, the liquid is firstly gathered in the position through the diverging groove 11, then the liquid enters the spiral groove through the guide of the cone-shaped guide body 14, the liquid can rotate when passing through the spiral groove, the liquid in the measuring cabin 1 is updated uniformly, the liquid in the measuring cabin 7 and the measuring inner electrode 8 are guaranteed to have the same flow speed, the liquid in the measuring cabin is uniformly distributed in the liquid measuring passage, the liquid in the measuring cabin 1 is not distributed uniformly because the liquid from the spiral groove rotates, the liquid flowing out of the spiral groove is prevented from the liquid, the liquid in the measuring cabin is prevented from flowing into the whole area from flowing into the measuring cabin through the measuring passage, and the liquid in the measuring cabin due to the liquid inlet 6, and the liquid is prevented from flowing into the whole, and flowing in the measuring area, and flowing in the liquid from the measuring cabin, and the liquid flowing in the measuring cabin is prevented from flowing in the measuring cabin.
Claims (6)
1. The utility model provides a from steady state detection conductivity meter of taking flow path, including vertical measurement storehouse (1) that sets up, link up through sealed cabin (2) on the upper portion of measurement storehouse (1) and be equipped with data processing unit (3) and the automatically controlled storehouse of power source (4) rather than linking, the lower extreme intercommunication of measurement storehouse (1) has inlet (5), the upper portion intercommunication of measurement storehouse (1) has liquid outlet (6), be equipped with barrel-shaped measurement outer electrode (7) and columniform measurement inner electrode (8) in the lower part of measurement storehouse (1), measurement outer electrode (7) and measurement inner electrode (8) all are connected with data processing unit (3) and power source (4) electricity, leave the clearance between measurement outer electrode (7) and the measurement inner electrode (8) and form liquid measurement passageway, its characterized in that: the measuring external electrode (7) be provided with columniform location draw-in groove (9) in measuring storehouse (1) bottom, the internal diameter of location draw-in groove (9) is less than the internal diameter of measuring external electrode (7) to the bottom of measuring internal electrode (8) is provided with convex annular bottom location card protruding (10), location draw-in groove (9) and the protruding (10) of bottom location card form grafting cooperation, the internal diameter of location draw-in groove (9) equals the external diameter of the protruding (10) of bottom location card, be provided with a plurality of spiral heliciform helicla grooves with vertical orientation at the surface of the protruding (10) of bottom location card, the junction of measuring external electrode (7) bottom and inlet (5) in measuring storehouse is provided with the belled groove (11) of opening upwards, the bottom of the protruding (10) of bottom location card is provided with the water conservancy diversion body (12) of inverted cone, water conservancy diversion body (12) and the groove (11) of diverging coaxially in the vertical orientation, the bottom opening and inlet (5) intercommunication of water inlet.
2. The self-contained flow path steady state detection conductivity meter according to claim 1, wherein: the measuring internal electrode (8) is provided with an inverted frustum-shaped top positioning body (13) at a position opposite to the liquid outlet (6), and a frustum-shaped drainage body (14) is arranged below the top positioning body (13).
3. The self-contained flow path steady state detection conductivity meter according to claim 1, wherein: the helix angle of the spiral groove is 30-60 degrees.
4. The self-contained flow path steady state detection conductivity meter according to claim 1, wherein: the height of the positioning clamping groove (9) is 10mm, the height of the bottom positioning clamping protrusion (10) is the same as that of the positioning clamping groove (9), the bottom positioning clamping protrusion (10) and the measuring inner electrode (8) are of split type structures, a cylindrical plug connector is arranged at the bottom end of the measuring inner electrode (8), the bottom positioning clamping protrusion (10) is provided with a cylindrical plug groove, the plug connector is matched with the plug groove in a plug manner, and the bottom positioning clamping protrusion (10) is overlapped with the central axis of the measuring inner electrode (8) and the central axis of the measuring outer electrode (7).
5. The self-contained flow path steady state detection conductivity meter according to claim 1, wherein: the outer diameter of the bottom positioning clamp protrusion (10) is 16mm, and the gap between the measuring outer electrode (7) and the measuring inner electrode (8) is 2.5mm.
6. The self-contained flow path steady state detection conductivity meter according to claim 2, wherein: the top locating body (13) and the measuring inner electrode (8) are of split type structures, the top of the top locating body (13) is inserted and fixed in the sealed cabin (2), a cylindrical slot is formed in the middle shaft part of the top locating body (13), a cylindrical inserting connector is arranged at the top of the measuring inner electrode (8), the inserting connector is matched with the inserting slot in an inserting mode, and the top locating body (13) is overlapped with the central axes of the measuring inner electrode (8) and the measuring outer electrode (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022840.6A CN108169570B (en) | 2018-01-10 | 2018-01-10 | Steady state detection conductivity meter with flow path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810022840.6A CN108169570B (en) | 2018-01-10 | 2018-01-10 | Steady state detection conductivity meter with flow path |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108169570A CN108169570A (en) | 2018-06-15 |
| CN108169570B true CN108169570B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810022840.6A Active CN108169570B (en) | 2018-01-10 | 2018-01-10 | Steady state detection conductivity meter with flow path |
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| CN (1) | CN108169570B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760828B (en) * | 2018-08-15 | 2023-07-28 | 河北科瑞达仪器科技股份有限公司 | Device for measuring liquid conductivity |
| CN110238497A (en) * | 2019-06-26 | 2019-09-17 | 张伯勤 | A kind of plasma cutting gun with self-locking device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001147210A (en) * | 1999-11-22 | 2001-05-29 | Saginomiya Seisakusho Inc | Electrode of resistivity meter |
| CN1712910A (en) * | 2004-06-24 | 2005-12-28 | 日本特殊陶业株式会社 | Electrostatic capacity type liquid state detecting sensor |
| CN2852125Y (en) * | 2005-07-25 | 2006-12-27 | 张秀玲 | Ultra-small integrated conductivity cell device |
| CN201053958Y (en) * | 2007-06-08 | 2008-04-30 | 上海康雷分析仪器有限公司 | Small sized resistivity sensor for super pure water device for lab |
| CN207703942U (en) * | 2018-01-10 | 2018-08-07 | 河北科瑞达仪器科技股份有限公司 | A kind of included flow path stable state detection conductivity gauge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8552719B2 (en) * | 2009-08-03 | 2013-10-08 | Microfier, Inc. | Method and apparatus for the purification and analytical evaluation of highly purified liquids |
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2018
- 2018-01-10 CN CN201810022840.6A patent/CN108169570B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001147210A (en) * | 1999-11-22 | 2001-05-29 | Saginomiya Seisakusho Inc | Electrode of resistivity meter |
| CN1712910A (en) * | 2004-06-24 | 2005-12-28 | 日本特殊陶业株式会社 | Electrostatic capacity type liquid state detecting sensor |
| CN2852125Y (en) * | 2005-07-25 | 2006-12-27 | 张秀玲 | Ultra-small integrated conductivity cell device |
| CN201053958Y (en) * | 2007-06-08 | 2008-04-30 | 上海康雷分析仪器有限公司 | Small sized resistivity sensor for super pure water device for lab |
| CN207703942U (en) * | 2018-01-10 | 2018-08-07 | 河北科瑞达仪器科技股份有限公司 | A kind of included flow path stable state detection conductivity gauge |
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| CN108169570A (en) | 2018-06-15 |
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