CN108760828A - A kind of device measured for liquid electric conductivity - Google Patents
A kind of device measured for liquid electric conductivity Download PDFInfo
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- CN108760828A CN108760828A CN201810929293.XA CN201810929293A CN108760828A CN 108760828 A CN108760828 A CN 108760828A CN 201810929293 A CN201810929293 A CN 201810929293A CN 108760828 A CN108760828 A CN 108760828A
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- pipeline
- measurement
- external electrode
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- electrode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
- G01N27/07—Construction of measuring vessels; Electrodes therefor
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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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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
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- General Health & Medical Sciences (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention discloses a kind of devices measured for liquid electric conductivity, including measure main body and measuring part.It measures main body and measuring part is assemblied together, make the compact of the present apparatus.Fluid to be measured is flowed into from the annular gap between the external electrode and interior electrode of measuring part, is flowed out from outlet pipe, and the guarantee of the concentricity between interior electrode and external electrode can bring higher measurement accuracy.Contact pin component in measuring part is directly connected to electronic, horological template and electrode assembly, does not have to use longer measurement lead, has maximally reduced influence of the lead resistance to measurement accuracy.
Description
Technical field
The present invention relates to for conductivity measurement device field more particularly to it is a kind of for liquid electric conductivity measure dress
It sets.
Background technology
The conductivity of liquid is closely related with the ion concentration in liquid, according to this relationship, the measurement of liquid electric conductivity
It is widely used in the multiple fields such as medicine, environmental protection, chemical industry, existing measurement method is sensor, circulation device and measuring instrument
Table, fluid to be measured flow in circulation device, and sensor is placed in circulation device and measures, and by measuring lead by signal
Measuring instrumentss are transmitted to, this measurement method needs to use multiple devices, and integration degree is relatively low, and it is not convenient enough to use.
And the resistance for measuring lead itself can have an impact measurement accuracy.
Invention content
Technical problem to be solved by the invention is to provide a kind of compact and measure accurately for liquid electric conductivity
The device of measurement.
In order to solve the above technical problems, the technical solution used in the present invention is：
A kind of device measured for liquid electric conductivity, it is characterised in that：Including measuring main body and measuring part；Measure master
Body has the measurement pipeline being vertically arranged, and horizontal connection measures the outlet pipeline of pipeline, the measurement pipeline and outlet pipe
Road is in three-way pipe structure, and one end closing for measuring pipeline, the side for measuring main body has installation groove；Measurement portion
Part, including measuring electrode component, measurement assembly and output precision；Wherein, electrode assembly is set to and measures in pipeline, including with
The external electrode of pipeline coaxial arrangement and interior electrode are measured, the outer surface of the external electrode is bonded solid with the inner surface for measuring pipeline
Fixed, the interior electrode is set in external electrode, has uniform ring between the outer surface and the inner surface of external electrode of the interior electrode
The blind end for measuring pipeline, the blind end and outlet pipeline for measuring pipeline are fixed in shape gap, one end of the interior electrode
Water inlet between annular gap in be equipped with by compress sealing seal member；Measurement assembly, including electronic, horological template and
Contact pin component, the electronic, horological template are fixed in installation groove, the contact pin component include one end be fixed on electronic, horological template,
The other end is fixed on the first measurement contact pin of the outer surface of external electrode and electronic, horological template is fixed in one end, the other end is fixed on
The outer surface of interior electrode second measure contact pin, it is described second measurement contact pin be located at seal member with measurement pipeline blind end it
Between, and be not in contact with external electrode；Output precision includes for carrying out the signal output line of electronic, horological template with main body is measured
Fixed wire bushing.
Further it is technically characterized in that：The blind end for measuring pipeline is equipped with the tube head plug for blocking nozzle, the pipe
Head plug can be dismantled, and its inner surface offers the cylinder shape groove coaxial with pipeline is measured, one end of the interior electrode and pipe
The groove interference fit of head plug.
Further it is technically characterized in that：The measurement assembly is additionally provided with temperature measuring set, and the temperature measuring set is located at
Between electronic, horological template and external electrode, and the temperature detection position of temperature measuring set is in contact with the outer surface of external electrode, described
The signal output end of temperature measuring set connects electronic, horological template.
Further it is technically characterized in that：The present apparatus is additionally provided with heat-dissipation spacer, and the heat-dissipation spacer is fixed on installation groove
Notch and so that installation groove is closed.
Further it is technically characterized in that：The radially inner and outer surface of the seal member is equipped with multiple sealings for sealing
Circle.
Further it is technically characterized in that：The seal member correspond to the water inlet of outlet pipeline position be equipped with it is radial to
Tilted slope.
Further it is technically characterized in that：The outer surface of the external electrode is interference fitted and leads to the inner surface for measuring pipeline
Radial male-female engagement is crossed to fix.
Further it is technically characterized in that：The open end of the measurement pipeline and outlet pipeline is respectively connected with fast quick access
Head.
Further it is technically characterized in that：Described first measures a diameter of 1~2mm of contact pin and the second measurement contact pin, high
Degree is 5~8mm.
Further it is technically characterized in that：Described first measures the fixation of contact pin and external electrode and second survey
The electric current that the fixation of amount contact pin and interior electrode is all made of 5000~8000A welds.
It is using advantageous effect caused by above-mentioned technical proposal：
When external electrode, interior electrode and the setting of pipeline concentricity is measured, there is uniform annular between external electrode and interior electrode
Gap can be such that testing liquid uniformly flows into this way, so the precision measured is higher.And the annular between external electrode and interior electrode
The seal member for compressing and sealing is equipped in gap, because radial force is uniform, can also protect while realizing sealing function
Concentricity in card between electrode and external electrode.
It measures main body and measuring part is assemblied together, make the compact of the present apparatus, it is easy to use, and measuring part
Electronic, horological template and electrode assembly are directly connected to using contact pin component, does not have to use longer measurement lead, subtract to greatest extent
Small influence of the lead resistance to measurement accuracy.
Description of the drawings
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Fig. 1 is the sectional view schematic diagram of the present invention；
Fig. 2 is the axonometric drawing schematic diagram of the present invention.
Specific implementation mode
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained without making creative work
Example, shall fall within the protection scope of the present invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented different from other manner described here using other, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
As shown in Fig. 1~Fig. 2, a kind of device measured for liquid electric conductivity, including measure main body 1 and measuring part.
Main body 1 is measured, there is the measurement pipeline 11 being vertically arranged, and horizontal connection measures the outlet pipeline of pipeline 11
12, the measurement pipeline 11 and outlet pipeline 12 are in three-way pipe structure, one end closing for measuring pipeline 11, the measurement master
The side of body 1 has installation groove 13.
Measuring part, including measuring electrode component, measurement assembly and output precision.Wherein, electrode assembly is set to measurement
In pipeline 11, includes and measure the external electrode 211 and interior electrode 212 that pipeline 11 is coaxially disposed, the outer surface of the external electrode 211
Fixation is bonded with the inner surface for measuring pipeline 11, the interior electrode 212 is set in external electrode 211, the appearance of the interior electrode 212
There is uniform annular gap 214, measurement is fixed in one end of the interior electrode 212 between face and the inner surface of external electrode 211
The blind end of pipeline 11, it is described measure pipeline 11 blind end and the water inlet of outlet pipeline 12 between annular gap 214 in
Equipped with the seal member 213 by compressing sealing.
When external electrode 211, interior electrode 212 and the setting of 11 concentricity of pipeline is measured, between external electrode 211 and interior electric 212 pole
With uniform annular gap, testing liquid can be made uniformly to flow into this way, so the precision measured is higher.And external electrode 211
The seal member 213 for compressing sealing is equipped in annular gap between interior electrode 212, while realizing sealing function, because
It is uniform for radial force, so can also ensure the concentricity between interior electrode 212 and external electrode 211.
Measurement assembly, including electronic, horological template 221 and contact pin component, the electronic, horological template 221 are fixed on installation groove
In 13, the contact pin component includes that electronic, horological template 221 is fixed in one end, the other end is fixed on the outer surface of external electrode 211
Electronic, horological template 221 is fixed in first measurement contact pin 2222 and one end, the other end be fixed on interior electrode 212 outer surface the
Two measure contact pin 2221, and the second measurement contact pin 2221 is located between seal member 213 and the blind end for measuring pipeline 11, and
It is not in contact with external electrode 211.Output precision, include for by the signal output line of electronic, horological template 221 with measure main body 1 into
Capable fixed wire bushing 231.
It measures main body 1 and measuring part is assemblied together, make the compact of the present apparatus, it is easy to use, and the present apparatus
Electronic, horological template 221 and electrode assembly are directly connected to using contact pin component, do not have to use longer measurement lead, to greatest extent
Reduce influence of the lead resistance to measurement accuracy.
The measurement for completing liquid electric conductivity needs to carry out following steps：
Fluid to be measured is inputted by measuring the open end of pipeline 11, is flowed by the open end of outlet pipeline 12 by the first step
Go out；
Second step starts electronic, horological template 221 and measures；
Third walks, and after being measured, shuts down the input of electronic, horological template 221 and fluid to be measured；
Clear water is inputted by measuring the open end of pipeline 11, is flowed out by the open end of outlet pipeline 12 by the 4th step.
After the completion of flushing, above-mentioned steps are repeated to measure the conductivity of other liquid.
Preferably, the blind end for measuring pipeline 11 is equipped with the tube head plug 14 for blocking nozzle, and the tube head plug 14 can be dismantled,
And its inner surface offers the cylinder shape groove coaxial with pipeline 11 is measured, one end and the tube head plug 14 of the interior electrode 212
Groove is interference fitted, and this structure processing is simple, and one end of interior electrode 212 and the groove of tube head plug 14 are interference fitted, and are ensured
Interior electrode 212 and the concentricity for measuring pipeline 11.Meanwhile the outer surface of tube head plug 14 passes through with the inner surface for measuring pipeline 11
Radial male-female engagement is fixed, and can prevent the axial movement of tube head plug 14 in this way, that is, increase the axial direction of interior electrode 212
Stability.
Because the conductivity of liquid is closely related with temperature, the precision measured in order to further increase, measurement assembly
It is additionally provided with temperature measuring set 4, the temperature measuring set 4 is between electronic, horological template 221 and external electrode 211, and temperature measures
The temperature detection position of instrument 4 is in contact with the outer surface of external electrode 211, the signal output end connection electricity of the temperature measuring set 4
Sub- measurement plate 221 eliminates influence of the temperature to measurement result by the setting of 221 program of electronic, horological template
The present apparatus is additionally provided with heat-dissipation spacer 5, and the heat-dissipation spacer 5 is fixed on the notch of installation groove 13 and makes installation groove
13 closings, when this structure can prevent air corrosion electronic, horological template 221 and electronic, horological template 221 works in time
Heat sheds, and reducing these heats influences measurement accuracy.
Other parts are corroded in fluid to be measured leakage in order to prevent, and the radially inner and outer surface of seal member 213 is equipped with multiple
Sealing ring 2131 for sealing.
Preferably, interior electrode 212 be in two-stage multidiameter structure, include with the groove of tube head plug 14 interference fit and area compared with
It small first axle and is attached thereto and the second axis that area is larger, the seal member 213 are sheathed in first axle, passes through
The shaft end of two axis and the axial baffle ring 214 being located in first axle carry out axial restraint, the seal member 213 and external electrode
211 are equipped with slope used for positioning, and not only reliable but also ease of assembly, the sealing ring use high isolation material to this structure type.
Preferably, the position of the water inlet of the correspondence of seal member 213 outlet pipeline 12 is equipped with radially-inwardly inclined slope,
Fluid to be measured turbulent flow and hydrops can be prevented in this way, be also beneficial to clean.
Preferably, the outer surface of external electrode 211 is interference fitted with the inner surface for measuring pipeline 11 and is matched by radial bumps
It closes and fixes, the fixed of external electrode 211 can be made and increase the interior table of the outer surface and measurement pipeline 11 of external electrode 211
Sealing effect between face.
Preferably, it measures pipeline 11 and the open end of outlet pipeline 12 is respectively connected with quick coupling 6, can facilitate in this way
Switching between the input unit and clear water input unit of fluid to be measured can be greatly when measuring the conductivity of plurality of liquid
Save time of measuring.
In order to ensure the transmission of measuring signal, first measure contact pin 2222 and second measure contact pin 2221 a diameter of 1~
2mm is highly 5~8mm.Electronic, horological template 221 is equipped with contact pin mouth, is directly inserted into the survey of the first measurement contact pin 2222 and second
Measure contact pin 2221.
Preferably, first the fixation of contact pin 2222 and external electrode 211 and the second measurement contact pin 2221 are measured
Fixation with interior electrode 212 is all made of the electric current welding of 5000~8000A, and heavy current welding can reduce impedance, and weld
Contact point is stablized.
It the above is only presently preferred embodiments of the present invention, anyone content according to the present invention makes the present invention a little
Simple modification, deformation and equivalent replacement each fall within protection scope of the present invention.
Claims (10)
1. a kind of device measured for liquid electric conductivity, it is characterised in that：Including measuring main body (1) and measuring part；
Main body (1) is measured, there is the measurement pipeline (11) being vertically arranged, and horizontal connection measures the outlet pipeline of pipeline (11)
(12), the measurement pipeline (11) and outlet pipeline (12) are in three-way pipe structure, one end closing for measuring pipeline (11), institute
Stating the side for measuring main body (1) has installation groove (13)；
Measuring part, including electrode assembly, measurement assembly and output precision；
Wherein,
Electrode assembly is set to and measures in pipeline (11), include with measure external electrode (211) that pipeline (11) is coaxially disposed with it is interior
Electrode (212), the outer surface of the external electrode (211) are bonded fixation, the interior electrode with the inner surface for measuring pipeline (11)
(212) it is set in external electrode (211), has between the outer surface and the inner surface of external electrode (211) of the interior electrode (212) equal
The blind end for measuring pipeline (11), the measurement pipe are fixed in even annular gap (214), one end of the interior electrode (212)
It is equipped in annular gap (214) between the blind end and the water inlet of outlet pipeline (12) on road (11) by compressing the close of sealing
Seal component (213)；
Measurement assembly, including electronic, horological template (221) and contact pin component, the electronic, horological template (221) are fixed on installation groove
(13) in, the contact pin component includes that electronic, horological template (221) is fixed in one end, the other end is fixed on the outer of external electrode (211)
The first of surface measures contact pin (2222) and electronic, horological template (221) is fixed in one end, the other end is fixed on interior electrode (212)
Outer surface second measure contact pin (2221), it is described second measurement contact pin (2221) is located at seal member (213) and measurement pipe
Between the blind end on road (11), and it is not in contact with external electrode (211)；
Output precision, including be used for by the signal output line of electronic, horological template (221) with measure main body (1) shield line for being fixed
It covers (231).
2. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：The measurement pipeline
(11) blind end is equipped with the tube head plug (14) for blocking nozzle, and the tube head plug (14) can dismantle, and its inner surface offers
The cylinder shape groove coaxial with pipeline (11) is measured, one end of the interior electrode (212) and the groove interference of tube head plug (14) are matched
It closes.
3. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：The measurement assembly is also
Equipped with temperature measuring set (4), the temperature measuring set (4) is located between electronic, horological template (221) and external electrode (211), and temperature
The temperature detection position of degree measuring instrument (4) is in contact with the outer surface of external electrode (211), the signal of the temperature measuring set (4)
Output end connects electronic, horological template (221).
4. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：The present apparatus is additionally provided with scattered
Hot partition board (5), the heat-dissipation spacer (5) are fixed on the notch of installation groove (13) and installation groove (13) are made to close.
5. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：The seal member
(213) radially inner and outer surface is equipped with multiple sealing rings (2131) for sealing.
6. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：The seal member
(213) position of corresponding external electrode (211) water outlet is equipped with radially-inwardly inclined slope.
7. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：The external electrode
(211) outer surface is interference fitted with the inner surface for measuring pipeline (11) and is fixed by radial male-female engagement.
8. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：The measurement pipeline
(11) and the open end of outlet pipeline (12) is respectively connected with quick coupling (6).
9. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：First measurement is inserted
A diameter of 1~2mm of needle (2222) and the second measurement contact pin (2221), is highly 5~8mm.
10. a kind of device measured for liquid electric conductivity according to claim 1, it is characterised in that：Described first measures
The fixation of contact pin (2222) and external electrode (211) and the second measurement contact pin (2221) are consolidated with interior electrode (212)
Surely it is all made of the electric current welding of 5000~8000A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929293.XA CN108760828B (en) | 2018-08-15 | 2018-08-15 | Device for measuring liquid conductivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929293.XA CN108760828B (en) | 2018-08-15 | 2018-08-15 | Device for measuring liquid conductivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108760828A true CN108760828A (en) | 2018-11-06 |
| CN108760828B CN108760828B (en) | 2023-07-28 |
Family
ID=63970079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810929293.XA Active CN108760828B (en) | 2018-08-15 | 2018-08-15 | Device for measuring liquid conductivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108760828B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507485A (en) * | 2018-12-21 | 2019-03-22 | 重庆大学 | A kind of liquid dielectric conductivity measurement system |
| CN110057873A (en) * | 2019-04-24 | 2019-07-26 | 重庆科技学院 | A kind of high temperature and high pressure steam mass dryness fraction on-line monitoring system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507485A (en) * | 2018-12-21 | 2019-03-22 | 重庆大学 | A kind of liquid dielectric conductivity measurement system |
| CN110057873A (en) * | 2019-04-24 | 2019-07-26 | 重庆科技学院 | A kind of high temperature and high pressure steam mass dryness fraction on-line monitoring system and method |
| CN110057873B (en) * | 2019-04-24 | 2021-05-28 | 重庆科技学院 | High-temperature high-pressure steam dryness online monitoring system and method |
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| CN108760828B (en) | 2023-07-28 |
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