CN206725494U - A kind of sensor for measuring aeration concentrater - Google Patents
A kind of sensor for measuring aeration concentrater Download PDFInfo
- Publication number
- CN206725494U CN206725494U CN201720503306.8U CN201720503306U CN206725494U CN 206725494 U CN206725494 U CN 206725494U CN 201720503306 U CN201720503306 U CN 201720503306U CN 206725494 U CN206725494 U CN 206725494U
- Authority
- CN
- China
- Prior art keywords
- sensor
- electrode
- circular ring
- ring electrode
- aeration concentrater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
It the utility model is related to a kind of sensor for measuring aeration concentrater.The sensor of the measurement aeration concentrater, including body（1）, the body（1）Inside it is provided with cylindrical electrode（2）And circular ring electrode（3）, the cylindrical electrode（2）And circular ring electrode（3）Central axis overlap, the cylindrical electrode（2）Diameter be less than circular ring electrode（3）Internal diameter；The cylindrical electrode（2）And circular ring electrode（3）Each lead-out wire corresponding with one（4）Connection.Sensor of the present utility model is easy for installation, need not consider installation direction during installation；Measured zone representativeness is stronger, and reaction sensitivity is high, is advantageous to obtain more accurate measurement result.
Description
Technical field
The utility model belongs to hydroelectric project Hydraulic Prototype Observation field, and in particular to a kind of biography for measuring aeration concentrater
Sensor.
Background technology
For Hydraulic and Hydro-Power Engineering outlet structure escape works, it is constraint and the passage for guiding current to let out groove, when letting out groove current
When flow velocity is higher, cavitation erosion easily occurs for outlet structure escape works concrete surface, and common solution is set letting out in groove
Bottom air entraining facilities and side wall air entraining facilities, using the effect forcing high-velocity current aeration of air entraining facilities, to reach deduction and exemption cavitation corrosion
The purpose of destruction.Air Concentration in Water Flow is to weigh the important indicator of air entraining facilities validity.According to the work of conductance instrument
Principle, then we can ask by measuring the electrical conductivity of clear water and the electrical conductivity of aerated flow and settle water resistance and aeration electricity
Resistance, and then calculate the aeration concentrater of current.
Maxell proposes the computation model for the whole ball resistivity for calculating two kinds of different resistivity materials, by electricity
Resistance rate calculation formula is applied in aerated flow, and the resistivity for taking air is infinity, obtains aeration concentrater in aerated flow
Calculation formula C：
Wherein, C is aeration concentrater；R0For the clear water resistance (zero resistance) of not bubbles；RcFor aeration resistance.
China is vast in territory, and the electrolyte content in each regional river water body is different, the electrical conductivity difference of current
Very big, the sensitivity to conductivity sensor proposes very high requirement.The principal element for influenceing transducer sensitivity has pole piece
The lineal measure of area or two pole piece adjacent edges, area is bigger or lineal measure is longer, and the sensitivity of sensor is higher.Mesh
Before, the sensor for measuring Air Concentration in Water Flow is made up of two parallel electrode slices, and pole plate plane is upward, as shown in Figure 1.Passing
Under conditions of sensor peripheral dimension is certain, rectangular electrodes piece is difficult to be effectively increased linear length, and sensitivity is difficult to improve；It is rectangular
Shape pole piece sensor has a stronger directionality, and the long side direction of pole piece should be parallel with water (flow) direction during install sensor, for same
For one measuring point, due to the difference of hydraulics, the direction of current is incomplete same, and rectangle pole piece sensor can not
Adapt to the change of water (flow) direction；The measured zone of sensor is the enveloping outer enclosure area encompassed of two electrode slices, and region is narrow
It is long, it is representative not strong.
Utility model content
The purpose of this utility model is in view of the shortcomings of the prior art, there is provided it is a kind of it is easy to use, measurement accuracy is high
The sensor of Air Concentration in Water Flow is measured, reduces measurement error.
The technical solution of the utility model is：A kind of sensor for measuring aeration concentrater, including body, set in the body
Cylindrical electrode and circular ring electrode are equipped with, the central axis of the cylindrical electrode and circular ring electrode overlaps, the cylinder
The diameter of shape electrode is less than the internal diameter of circular ring electrode；The cylindrical electrode and circular ring electrode are each corresponding with one to be drawn
Outlet connects.
Further, the upper end of the cylindrical electrode and circular ring electrode is concordant with the upper surface of body.
Further, the cylindrical electrode and circular ring electrode are made by graphite.
Preferably, the Shore hardness of the graphite is not less than 60.
Further, a diameter of 20~30mm of the cylindrical electrode, length are 30~50mm；
Further, the internal diameter of the circular ring electrode is 40~50mm, and external diameter is 40~60mm, length is 30~
50mm。
Further, the body is cylinder, and a diameter of 50~70mm of body, length is 50~100mm.
Further, the body is made up of insulating materials.
Preferably, the insulating materials is the one or more in epoxy resin, polyester, polyurethane, organic siliconresin.
Measuring method of the present utility model is：First by sensor of the present utility model and the conductivity sensor demarcated
Or measurement is compared in potassium chloride standard solution, sensor of the present utility model and pair for the conductivity sensor demarcated are established
It should be related to；Sensor body of the present utility model is embedded in concrete, sensor body upper surface and concrete surface are neat
It is flat.During actual measurement, the electrical conductivity dynamic data sample of sensor is gathered, then data sample is repaiied according to corresponding relation
Just, aeration resistance, clear water resistance are asked for by statistical analysis, the aeration concentrater of current is finally calculated with Maxell formula.
Innovation of the present utility model is, sensor body is directly embedded in concrete, disposably installed
Into without later stage assembling；Sensor body peripheral dimension is smaller, and forms an entirety with concrete, will not turn into cavitation source,
Outlet structure escape works are had no adverse effect；In addition, the utility model employs cylindrical electrode and circular ring electrode, it is adapted to appoint
Anticipate different water (flow) directions, while sensor in-site installation is not limited by direction, it is more convenient；Sensor of the present utility model
Measured zone is the cylindrical area encompassed of circular ring electrode, and relative to the elongated zones of rectangular electrodes, measurement field is wider,
It is representative stronger, random meausrement error can be reduced；Under conditions of sensor body peripheral dimension is certain, cylinder and annular
Electrode type can increase the diameter of cylindrical electrode to greatest extent, so as to increase cylindrical electrode and circular ring electrode it
Between effectively reveal the lineal measure put, improve electrical conductivity measuring value, zero resistance reduced, so as to improve the sensitivity of sensor.
Compared with prior art, the beneficial effects of the utility model are：It is easy for installation, pass through circular ring electrode and cylinder
The use of electrode, installation direction need not be considered during installation；Measurement accuracy is high, and measured zone representativeness is stronger, can reduce random
Measurement error；Sensor of the present utility model is more sensitive to the reacting condition of aeration concentrater, and it is more accurate to be advantageous to acquisition
Measurement result；In addition, compared with traditional sensors, in the case where sensor body peripheral dimension is certain, cylindrical electrode dew
The girth put is bigger, and zero resistance is smaller, and sensitivity is higher.
Brief description of the drawings
Fig. 1 is the structural representation of existing sensor；
Fig. 2 is Fig. 1 longitudinal sectional drawing；
Fig. 3 is the structural representation of the first embodiment of the utility model；
Fig. 4 is the longitudinal sectional drawing of the first embodiment of the utility model.
Wherein, 1-sensor body, 2-cylindrical electrode, 3-circular ring electrode, 4-lead-out wire.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as
There are " on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with accompanying drawing in itself is consistent, not to structure
Play restriction effect.
A kind of sensor for measuring aeration concentrater, as shown in Figure 3, Figure 4, including sensor body 1, cylindrical electrode 2, circle
Annular electrode 3, lead-out wire 4；The sensor body 1 is cylinder, diameter 60mm, height 60mm, is made up of insulating materials；Circle
Cylindrical electrode 2 and circular ring electrode 3 are arranged in body 1, and both central axis overlap；The cylindrical electrode 2 it is straight
Footpath is 30mm, and a diameter of 40mm of inner circle, the outside diameter 50mm of circular ring electrode 3, electrode height (length) is 30mm, circle
Cylindrical electrode 2 and circular ring electrode 3 are made up by Shore hardness (HSD) of 60 graphite material；The lead-out wire 4 respectively with circle
The bottom connection of cylindrical electrode 2, circular ring electrode 3.
The content that above-described embodiment illustrates should be understood to that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than limitation the scope of the utility model, after the utility model has been read, those skilled in the art are new to this practicality
The modification of the various equivalent form of values of type each falls within the application appended claims limited range.
Claims (9)
1. a kind of sensor for measuring aeration concentrater, including body（1）, it is characterised in that the body（1）Inside it is provided with cylinder
Shape electrode（2）And circular ring electrode（3）, the cylindrical electrode（2）And circular ring electrode（3）Central axis overlap, it is described
Cylindrical electrode（2）Diameter be less than circular ring electrode（3）Internal diameter；The cylindrical electrode（2）And circular ring electrode（3）Respectively
From lead-out wire corresponding with one（4）Connection.
2. the sensor of measurement aeration concentrater according to claim 1, it is characterised in that the cylindrical electrode（2）With
Circular ring electrode（3）Upper end and body（1）Upper surface it is concordant.
3. the sensor of measurement aeration concentrater according to claim 1, it is characterised in that the cylindrical electrode（2）With
Circular ring electrode（3）It is made by graphite.
4. the sensor of measurement aeration concentrater according to claim 3, it is characterised in that the Shore hardness of the graphite is not
Less than 60.
5. the sensor of measurement aeration concentrater according to claim 1, it is characterised in that the cylindrical electrode（2）'s
A diameter of 20~30mm, length are 30~50mm.
6. the sensor of measurement aeration concentrater according to claim 1, it is characterised in that the circular ring electrode（3）'s
Internal diameter is 40~50mm, and external diameter is 40~60mm, and length is 30~50mm.
7. the sensor of measurement aeration concentrater according to claim 1, it is characterised in that the body（1）For cylinder,
Body（1）A diameter of 50~70mm, length is 50~100mm.
8. the sensor of the measurement aeration concentrater according to any one of claim 1 ~ 7, it is characterised in that the body（1）
It is made up of insulating materials.
9. the sensor of measurement aeration concentrater according to claim 8, it is characterised in that the insulating materials is asphalt mixtures modified by epoxy resin
One or more in fat, polyester, polyurethane, organic siliconresin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503306.8U CN206725494U (en) | 2017-05-08 | 2017-05-08 | A kind of sensor for measuring aeration concentrater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720503306.8U CN206725494U (en) | 2017-05-08 | 2017-05-08 | A kind of sensor for measuring aeration concentrater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206725494U true CN206725494U (en) | 2017-12-08 |
Family
ID=60509473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720503306.8U Active CN206725494U (en) | 2017-05-08 | 2017-05-08 | A kind of sensor for measuring aeration concentrater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206725494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442920A (en) * | 2018-02-08 | 2018-08-24 | 天津大学 | The water phase conductivity measuring apparatus of aqueous phase multiphase flow in upward vertical tube |
| CN111157587A (en) * | 2019-12-30 | 2020-05-15 | 中国人民解放军军事科学院国防科技创新研究院 | Conductivity sensor for microgravity environment |
-
2017
- 2017-05-08 CN CN201720503306.8U patent/CN206725494U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442920A (en) * | 2018-02-08 | 2018-08-24 | 天津大学 | The water phase conductivity measuring apparatus of aqueous phase multiphase flow in upward vertical tube |
| CN108442920B (en) * | 2018-02-08 | 2021-07-06 | 天津大学 | Water phase conductivity measuring device for water-containing phase multi-phase flow in vertical riser |
| CN111157587A (en) * | 2019-12-30 | 2020-05-15 | 中国人民解放军军事科学院国防科技创新研究院 | Conductivity sensor for microgravity environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206725494U (en) | A kind of sensor for measuring aeration concentrater | |
| CN202126434U (en) | Measuring device for slit content in muddy water | |
| CN102200463A (en) | Liquid level linear measurement method based on impedance measurement | |
| CN109708564A (en) | Gas-liquid/oil gas water multiphase thickness of liquid film distribution method for measuring conductance | |
| CN106290515B (en) | The self calibration ocean multi-parameter chemical sensor of micro-fluidic replaceable cavity body structure | |
| CN108414579A (en) | Eliminate the temperature of water and the biphase gas and liquid flow specific retention measurement method of salinity influence | |
| CN107037087A (en) | A kind of sensor and measuring method for measuring Air Concentration in Water Flow | |
| CN209706702U (en) | A kind of riverway sludge measuring rod | |
| CN205157400U (en) | Instantaneous corrosion rate sensor of soil electrochemistry | |
| CN209372480U (en) | Level measuring device for fetching water | |
| CN202255546U (en) | Sensor for measuring liquid level based on liquid impedance | |
| CN207850971U (en) | Quick real-time dynamic monitoring degree of mineralization of ground water device | |
| CN205246493U (en) | Test device of non -contact impedance method survey concrete interconnected pore rate | |
| CN2526841Y (en) | Miniature nonmetallic electrode conductivity sensor | |
| CN201837609U (en) | ORP detection bottle | |
| CN204389429U (en) | The much higher function soil sensor of a kind of precision | |
| CN2650125Y (en) | Measuring electrode for liquid conductivity | |
| CN203893894U (en) | Flexible body based vortex shedding flowmeter | |
| CN108397188A (en) | Sensor for aqueous phase multiphase flow water phase conductivity measurement in upward vertical tube | |
| CN103149382A (en) | Groundwater flow direction centroid skewing measuring method | |
| CN202486110U (en) | Conductive electrode | |
| CN206974502U (en) | A kind of water-level measuring post of portable type measuring water level | |
| CN111207796A (en) | Drainage pipeline and open channel flow measuring device | |
| CN201716069U (en) | Device for measuring water-level fluctuation automatically | |
| CN206450285U (en) | A kind of Portable underground water monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |