CN206695810U - A kind of concentration detection system using integration technology - Google Patents
A kind of concentration detection system using integration technology Download PDFInfo
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- CN206695810U CN206695810U CN201720121147.5U CN201720121147U CN206695810U CN 206695810 U CN206695810 U CN 206695810U CN 201720121147 U CN201720121147 U CN 201720121147U CN 206695810 U CN206695810 U CN 206695810U
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- 238000001514 detection method Methods 0.000 title claims abstract description 109
- 238000005516 engineering process Methods 0.000 title claims abstract description 18
- 230000010354 integration Effects 0.000 title claims abstract description 17
- 238000007667 floating Methods 0.000 claims abstract description 26
- 230000005484 gravity Effects 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 230000007797 corrosion Effects 0.000 claims description 12
- 238000005260 corrosion Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 241001269238 Data Species 0.000 abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 239000003513 alkali Substances 0.000 description 9
- 238000012360 testing method Methods 0.000 description 8
- 235000011121 sodium hydroxide Nutrition 0.000 description 7
- 238000012545 processing Methods 0.000 description 6
- 230000003044 adaptive effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002585 base Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a kind of concentration detection system using integration technology, including three kinds of gravity type concentration detection apparatus, floating type concentration detection apparatus and differential concentration detection apparatus concentration detection apparatus being connected respectively with controller, three kinds of concentration detection apparatus detect the concentration value of the solution to be detected in detect tank and the solution concentration information detected are respectively transmitted to controller respectively.The utility model detects the concentration of solution with three kinds of different sensor detection modes respectively under same operating mode, and most three kinds of concentration datas are handled to obtain final concentration value at last, greatly improve the precision of measurement of concetration.
Description
Technical field
The utility model belongs to solution concentration detection equipment technical field, more particularly, to a kind of using the dense of integration technology
Spend detecting system.
Background technology
The concentration for measuring solution in the prior art typically all uses concentration detection apparatus, the detection side of existing concentration detection apparatus
Formula is relatively simple, and accuracy of detection is not high enough, if can't bear in production or experiment using the larger concentration values of error, its consequence
Contemplate.
The content of the invention
In view of this, the utility model is directed to a kind of concentration detection system using integration technology, to propose one kind
New concentration detection apparatus.It is emphasized that in the utility model, each device and/or module are operated processing when institute
Agreement, software or the program being related to have existed in the prior art, and those skilled in the art fully know.As stated above,
The utility model is not related to the content of software, but proposes how each device and/or module are organically integrated, integrated by one kind
Into an entirety, that is, provide a kind of structural scheme.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in:
A kind of concentration detection system using integration technology, including filled with the gravity type Concentration Testing that controller is connected respectively
Put, three kinds of concentration detection apparatus of floating type concentration detection apparatus and differential concentration detection apparatus, three kinds of concentration detection apparatus point
The solution concentration information detected is simultaneously respectively transmitted to controller, control by the concentration value of solution to be detected that Jian Ce be in detect tank
The concentration data that device processed detects three kinds of concentration detection apparatus carries out adaptive weighted processing;The quantity of the detect tank is three
It is individual, gravity type concentration detection apparatus, floating type concentration detection apparatus and differential concentration detection apparatus respectively with a detect tank
Corresponding, the solution in detect tank is same and derives from same place.
Further, the gravity type concentration detection apparatus includes force-sensing sensor and first transmitter supporting with it,
First transmitter is connected with controller, and the force side of force-sensing sensor is hung with the first float by corrosion-resistant messenger wire, and first is floating
Son can be placed in inside detect tank.
Further, during detection, by the hanging of the first float in detect tank, force-sensing sensor, the first transmitter and part
Corrosion-resistant messenger wire is located above detect tank.
Further, the floating type concentration detection apparatus includes the second float, and one end of the second float is provided with protrusion
In end face and the float lever vertical with end face, the sidepiece of float lever is provided with the displacement transducer for detecting float lever displacement,
Displacement transducer is connected with the second transmitter, and the second transmitter is connected with controller, and the second float and float lever can be placed in detection
Inside groove.
Further, during detection, the second float and float lever are vertically arranged, and the second float are positioned in detect tank, portion
Float lever is divided to be located in detect tank, displacement transducer, the second transmitter and part float lever are located above detect tank, and described second
Float is cylinder, and float lever is cylinder, and the diameter ratio of the second float and float lever is bigger, floating type concentration detection apparatus
It is sensitiveer.
Further, the differential concentration detection apparatus includes fix bar, is provided with fix bar spaced resistance to
The first pressure sensor and second pressure sensor of corrosion, one end of fix bar are provided with and first pressure sensor and second
The 3rd supporting transmitter of pressure sensor, first pressure sensor and second pressure sensor connect with the 3rd transmitter respectively
Connect, the 3rd transmitter is connected with controller, and during detectable concentration, the other end of fix bar is vertically placed in detect tank, first pressure
Sensor and second pressure sensor are located in detect tank respectively.
Further, during detection, the lower end of the fix bar abuts with the bottom of detect tank, and second pressure sensor is close
At the liquid level of solution to be detected, first pressure sensor is close to the bottom of detect tank.
Further, feed tube is provided with above the detect tank, valve is provided with feed tube, the feed tube is
The branch line of work liquid pipeline to be detected in workshop appliance, the side wall upper part of the detect tank offer overfall, during detection,
Overflow liquid level in each detect tank is identical and the overflow liquid level of three detect tanks is located on same horizontal plane.
Relative to prior art, a kind of concentration detection system using integration technology described in the utility model has following
Advantage:
(1) the utility model detects the dense of solution with three kinds of different sensor detection modes respectively under same operating mode
Degree, and most three kinds of concentration datas are weighted processing at last, greatly improve the precision of measurement of concetration;
(2) the utility model is simple in construction, economic and practical, and the sensitivity for three kinds of detection means of various concentrations solution is not
Together, so the weight coefficient of concentration is different, measurement precision is high, has very high value, has wide market prospects.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the floating type concentration detection apparatus described in the utility model embodiment;
Fig. 3 is the structural representation of the differential concentration detection apparatus described in the utility model embodiment.
Description of reference numerals:
1- gravity type concentration detection apparatus;101- force-sensing sensors;The corrosion-resistant messenger wires of 102-;The floats of 103- first;2- weights
The floating type concentration detection apparatus of power;The floats of 201- second;202- float levers;203- displacement transducers;The differential Concentration Testings of 3-
Device;301- first pressure sensors;302- second pressure sensors;303- fix bars;The transmitters of 304- the 3rd;4- is detected
Groove;401- overfalls;402- blowoff valves;5- work liquid pipelines to be detected;51- feed tubes;6- valves.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that signified device or element must have specific orientation, with specific azimuth configuration and operation, therefore be not understood that
For to limitation of the present utility model.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that instruction
Or imply relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, " first ", " second " etc. are defined
Feature can express or implicitly include one or more this feature.In description of the present utility model, unless separately
It is described, " multiple " are meant that two or more.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the utility model.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As shown in Figures 1 to 3, a kind of concentration detection system using integration technology, including divide with controller (not shown)
3 three kinds of the gravity type concentration detection apparatus 1 that does not connect, floating type concentration detection apparatus 2 and differential concentration detection apparatus concentration
Detection means, the method for three kinds of concentration detection apparatus measurement concentration is different, and three kinds of concentration detection apparatus detect in detect tank 4 respectively
Solution to be detected concentration value and the solution concentration information detected is respectively transmitted to controller, controller is by three kinds of concentration
The concentration data that detection means detects carries out adaptive weighted processing.The quantity of detect tank 4 is three, gravity type Concentration Testing
Device 1, floating type concentration detection apparatus 2 and differential concentration detection apparatus 3 are corresponding with a detect tank 4 respectively.Detect tank 4
Interior solution is same and derives from same place solution.The top of detect tank 4 is provided with feed tube 51, and valve is provided with feed tube 51
Door 6, feed tube 51 are the branch line of work liquid pipeline 5 to be detected in workshop appliance.The side wall upper part of detect tank 4 offers excessive
Head piece 401.During detection, in order to ensure identical operating mode, the overflow plane in each detect tank 4 is identical and overflow plane is positioned at same
On one horizontal plane.Blowoff valve 402 is additionally provided with detect tank 4.Solution to be detected is detected in the case where keeping overflow, is protected
It is consistent to hold operating mode, so as to improve accuracy of detection.
Gravity type concentration detection apparatus 1 includes force-sensing sensor 101 and first transmitter supporting with it, the first transmitter
It is connected with controller, the force side of force-sensing sensor 101 is hung with the first float 103, the first float by corrosion-resistant messenger wire 102
103 can be placed in inside detect tank 4.During detection, the first float 103 is hung in the detect tank 4 below overfall 401, power is quick
Sensor 101, the corrosion-resistant messenger wire 102 of the first transmitter and part are located at the top of detect tank 4.The concentration of solution to be detected is different,
The density of solution is just different, and the buoyancy that the first float 103 is subject to is just different, so as to which force-sensing sensor 101 is by the first float 103
Pulling force it is just different.The relation determined be present with solution concentration value in the value of thrust that force-sensing sensor 101 detects.
As shown in Fig. 2 floating type concentration detection apparatus 2 includes the second float 201, one end of the second float 201 is provided with
End face and the float lever 202 vertical with end face are protruded from, the sidepiece of float lever 202 is provided with for detecting the displacement of float lever 202
Displacement transducer 203, displacement transducer 203 is connected with the second transmitter, and the second transmitter is connected with controller, the second float
201 and float lever 202 can be placed in inside detect tank 4.During detection, the second float 201 and float lever 202 are vertically arranged, by second
Float 201 is positioned in the detect tank 4 of the lower section of overfall 401, and part float lever 202 is located at the detect tank of the lower section of overfall 401
In 4.Displacement transducer 203, the second transmitter and part float lever 202 are located at the top of detect tank 4, and the second float 201 is cylinder
Body, float lever 202 are cylinder, and the diameter ratio of the second float 201 and float lever 202 is bigger, floating type concentration detection apparatus 2
It is sensitiveer.Solution concentration is different, and density is just different, and float lever 202 can then produce displacement, displacement transducer relative to initial position
Determination relation be present with solution concentration value in 203 shift values detected.
As shown in figure 3, differential concentration detection apparatus 3 includes fix bar 303, interval setting is provided with fix bar 303
Corrosion resistant first pressure sensor 301 and second pressure sensor 302, one end of fix bar 303 is provided with and the first pressure
Force snesor 301 and supporting the 3rd transmitter 304 of second pressure sensor 302.First pressure sensor 301 and second pressure
Sensor 302 is connected with the 3rd transmitter 304 respectively, and the 3rd transmitter 304 is connected with controller.During detectable concentration, fix bar
303 other end is vertically placed in detect tank 4, and first pressure sensor 301 and second pressure sensor 302 are located at overflow respectively
In the detect tank 4 of the lower section of mouth 401.The lower end of fix bar 303 abuts with the bottom of detect tank 4, and second pressure sensor 302 is close
At overfall 401, first pressure sensor 301 is close to the bottom of detect tank 4.First, second pressure sensor (301,302)
Determination relation be present with solution concentration value in pressure difference.
The quantity of detect tank 4 is three, and each detect tank 4 corresponds to gravity type concentration detection apparatus 1, floating type concentration respectively
Detection means 2, differential concentration detection apparatus 3.The top of detect tank 4 is provided with feed tube 51, and valve is provided with feed tube 51
Door 6, feed tube 51 are the branch line of work liquid pipeline 5 to be detected in workshop appliance.The operating mode of detect tank 4 is identical, during detection,
Valve 6 is opened, for each feed tube 51 simultaneously to liquid is poured in detect tank 4, control valve 6 causes the flow velocity of three feed tubes 51
It is identical, it can so improve the precision of detection.
A kind of detection method of concentration detection system using using integration technology, comprises the following steps:
Step 1:Three detect tanks 4 are located in identical operating mode, control the flow also phase of the solution to be detected of inflow
Together;
Step 2:Pure water is injected into detect tank 4 respectively, overfall 401 is always maintained at and there are flowing out state, utilize gravity
Formula concentration detection apparatus 1, floating type concentration detection apparatus 2, differential concentration detection apparatus 3 are placed in pure water and detected, and now weigh
The value of thrust F that power formula concentration detection apparatus 1, floating type concentration detection apparatus 2, differential concentration detection apparatus 3 detect0, it is floating
The position of sub bar 202, pressure differential Δ P0For initial value;
Step 3:Detect tank 4 is emptied, solution to be detected is injected in detect tank 4 simultaneously, until overfall 401 has solution
Flow out and be always maintained at this present situation, gravity type concentration detection apparatus 1, floating type concentration detection apparatus 2, differential Concentration Testing dress
Put 3 respectively while detect solution to be detected, and the data detected are sent to controller respectively;
Step 4:After receive three concentration datas are carried out adaptive weighted processing by controller, obtain to be detected molten
The ultimate density numerical value of liquid.Being established in controller has knowledge base, database and inference machine, different weighting in the step 4
Coefficient is called automatically from the knowledge base of continuous renewal and database by inference machine.
Operation principle of the present utility model:
First, gravity type concentration detection apparatus 1
1) Density Detection principle and testing process
By taking sodium hydroxide (NaOH, alkali, caustic soda, caustic soda) solution as an example, the first float of gravity type concentration detection apparatus 1
103 are fully immersed in solution to be detected, as shown in Figure 1.First float 103 is hung on the stress point of force-sensing sensor 101.
Under conditions of overflow, the constant liquid level in detect tank 4, the volume of the first float 103 is V, as liquid density variation Δ ρ,
The variable quantity of buoyancy suffered by float is:
Δ F=Δ ρ Vg (1)
V and g is constant, and g is acceleration of gravity, then fluid density ρ to buoyancy F suffered by float with regard to proportional relation.
(1) solution density ρ0=1.0000g/cm3
Pure water (or running water) is injected in detect tank 4, keeps overfall 401 to there are flowing out stateBy the first float
103 are placed under the liquid level of overfall 401By float hanging on the stress point of force-sensing sensor 101Pure water floats to float
Power Fc=ρc·V·gForce acting on transducer F0For float gravity FzSubtract pure water buoyancy Fc,F0=Fz-Fc First transmitter electricity
Flow output signal i0 Realize the conversion of power/electric currentCurrent signal changes generation data through A/DRealize analog quantity/numeral
Amount conversionData are stored in memory D100Complete F0Data storage, the data in 8D100 are 4000 (decimal systems), should
Value can detect numerical value and zero offset to determine by hand-held densitometer.ρ0=1.0000g/cm3{ D100 } (is represented therein
Decimal data)=4000 be density/force acting on transducer relation curve the 1st coordinate points.
(2) solution density increase Δ ρ
A commercially available industrial alkali is taken, is dissolved in the pure water of detect tank 4, it is uniform by solution self-loopa solution concentration
Solute increases Δ m, density increase Δ ρBuoyancy increase Δ FForce acting on transducer F1=F0-Δ FFirst transmitter current is defeated
Go out signal i1 Current signal is changed generation data through A/D and is stored in D100Complete F1Data storageWith hand-held density
Meter reads density value ρ now1, the data in D100 correspond to F1, obtain the 2nd coordinate points of relation curve.
So operation, so that it may to establish ρ/F curve.
(3) the density-concentration table of comparisons
, can be according to existing density/mass percentage concentration after establishing ρ/F curves, density/molar concentration, density/quality-
The volumetric concentration table of comparisons draws corresponding concentration.
(4) concentration unit reduction formula
It can be converted between three kinds of concentration, calculated by a kind of concentration according to existing concentration unit reduction formula
Other two kinds of concentration.
2nd, floating type concentration detection apparatus 2
1) Density Detection principle and testing process
Floating type device for detecting density is as depicted in figs. 1 and 2.Second float 201 is a diameter of d1Cylinder, second is floating
The height of son 201 is h1, the gravity of the second float 201 is W, the second float 201 and the volume of float lever 202 being dipped in alkali lye
For V.A diameter of d of float lever 2022, its height in the solution of detect tank 4 is h2.Alkali lye density is ρ.In the overflow of detect tank 4
In the case of, when alkali lye density is ρ+△ ρ, the second float 201 floats, and it is V-△ V that it, which submerges volume, is then reached new
Balance.Its buoyancy expression formula is
W=v ρ g (2)
W=(v- Δs v) (ρ+Δ ρ) g (3)
Obtained by formula (2) and formula (3)
According to Fig. 2, △ v are to reduce △ h by the height being immersed in detect tank 42Caused volume, i.e.,
△ v are
Obtained by formula (4)~(6)
From formula (7), the diameter d of the second float 2011With the diameter d of float lever 2022The ratio between it is bigger, detection sensitivity is higher,
This is identical with the foundation of hand-held glass density meter.
(1) solution density ρ0=1.0000g/cm3
Pure water (or running water) is injected in detect tank 4, keeps overfall 401 to there are flowing out statePure water is floating to second
The buoyancy F of son 201c=ρc·V·gPoised state:Buoyancy Fc=W gravityThe zero-bit of displacement transducer 203, the second transmitter
Output current i0=4mAGeneration data are changed through A/D, are stored in D200, zero-bit L0Data are 0000 (decimal system), the value
Numerical value and zero offset can be detected to determine by hand-held densitometer.ρ0=1.0000g/cm3, { D200 } (represents that therein ten enter
Data processed)=0000, obtain the 1st coordinate points of the second transmitter displacement signal relation curve.
(2) solution density increase Δ ρ
A commercially available industrial alkali is taken, is dissolved in detect tank 4 (or running water), passes through solution self-loopa solution concentration
UniformlySolute increases Δ m, density increase Δ ρBuoyancy increase Δ FFloat floats, and reaches new equalization point w=(v- Δs
v)(ρ+Δρ)gSecond transmitter current output signal i1 Current signal is changed generation data through A/D and is stored in D200,
With the density value ρ of hand-held densitometer reading now1, the data in D200 correspond to L1, obtain the 2nd coordinate points of relation curve.
So operation, so that it may to establish a ρ/L-curve.
There is ρ/L-curve, can be according to existing density/mass percentage concentration, density/molar concentration, density/quality-body
Product concentrations control table draws corresponding concentration.
It can be converted between three kinds of concentration, calculated by a kind of concentration according to existing concentration unit reduction formula
Other two kinds of concentration.
3rd, differential concentration detection apparatus 3
1) Density Detection principle and testing process
Differential device for detecting density structural representation is as shown in Figure 1,3.Sensed using two sets of corrosion resistant first pressures
Device 301, the transmitter 304 of second pressure sensor 302 and the 3rd form differential device for detecting density.In Fig. 3, pressure sensor
15 with the vertical range of overflow liquid level (or depth or apart from overflow liquid level) be h1, according to hydrostatic principle,
The static pressure P of the position of first pressure sensor 3011For:
P1=ρ gh1 (8)
The static pressure P of the position of second pressure sensor 3022For:
P2=ρ gh2 (9)
Formula (8) is subtracted each other with formula (9), is obtained:
P1-P2=ρ g (h1-h2) (10)
According to hydrostatic principle, the density of solution is in detect tank 4:
Therefore, under conditions of the overflow of detect tank 4, after the position of two pressure sensors determines, it is possible to according to pressure
Power difference tries to achieve the density of solution.
(1) solution density ρ0=1.0000g/cm3
Pure water (or running water) is injected in detect tank 4, keeps overfall 401 to there are flowing out state Pressure P1Through
The output current i of 3rd transmitter 30401, pressure P2Through the output current i of the 3rd transmitter 30402 Generation data are changed through A/D,
The result subtracted each other is stored in D300, and the numerical value is that pure water (or running water) detects pressure difference Δ P0.The value can be by hand-held close
Degree meter detects numerical value and zero offset to determine.
ρ0=1.0000g/cm3{ D300 } data, obtain the 1st coordinate points of density/pressure difference signal relation curve.
(2) solution density increase Δ ρ
A commercially available industrial alkali is taken, is dissolved in the pure water of detect tank 4 (or running water), passes through solution self-loopa solution
Even concentrationSolute increases Δ m, density increase Δ ρPressure P1Through the output current i of the 3rd transmitter 3041, pressure P2Through
The output current i of 3rd transmitter 3042 Generation data are changed through A/D, the result subtracted each other is stored in D300, and the numerical value is to add
Pressure difference Δ P is detected after a alkali1Data, with hand-held densitometer detection density value ρ1。
ρ1{ D300 } data, obtain the 2nd coordinate points of density/pressure difference signal relation curve.
So operation, so that it may to establish a ρ/Δ P curves.
There are ρ/Δ P curves, can be according to existing density/mass percentage concentration, density/molar concentration, density/quality-
The volumetric concentration table of comparisons draws corresponding concentration.
It can be converted between three kinds of concentration, calculated by a kind of concentration according to existing concentration unit reduction formula
Other two kinds of concentration.
4th, data fusion
Last controller merges to the data of three kinds of sensors, i.e., established in controller knowledge base, database and
Inference machine, during on-line checking, adaptive weighted processing is carried out to the data of three kinds of sensors according to different concentration, it is different
Weight coefficient be to be called automatically from the knowledge base of continuous renewal and database by inference machine.
The three sensor adaptive weighting data fusion patterns in knowledge based storehouse, database and inference machine, belong to intelligence
Control theory category, three kinds of respective advantages of sensor are integrated into whole advantage by this pattern, under different concentration, three kinds
The sensitivity of sensor detection is different, and the precision of the data measured is just different, and the weight coefficient of every kind of detection data is just different,
The ratio of the high weight coefficient of measurement sensitivity is great, therefore, profit in this way, alkali concn from 0g/L to 400g/L whole process model
In enclosing, the deviation of detected value is all not more than ± 0.25%, greatly improves the precision of Concentration Testing.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (8)
- A kind of 1. concentration detection system using integration technology, it is characterised in that:Including the gravity type being connected respectively with controller (3) three kinds of concentration detection apparatus (1), floating type concentration detection apparatus (2) and differential concentration detection apparatus concentration detection apparatus, Three kinds of concentration detection apparatus detect the concentration value of the solution to be detected in corrosion resistant detect tank (4) and molten by what is detected respectively Liquid concentration information is respectively transmitted to controller;The quantity of the detect tank (4) is three, gravity type concentration detection apparatus (1), floating type concentration detection apparatus (2) and pressure Differential concentration detection apparatus (3) is corresponding with a detect tank (4) respectively, and the solution in detect tank (4) derives from same place.
- 2. the concentration detection system according to claim 1 using integration technology, it is characterised in that:The gravity type concentration Detection means (1) includes force-sensing sensor (101) and first transmitter supporting with it, the first transmitter are connected with controller, The force side of force-sensing sensor (101) is hung with the first float (103), the first float (103) energy by corrosion-resistant messenger wire (102) It is internal to be placed in detect tank (4).
- 3. the concentration detection system according to claim 2 using integration technology, it is characterised in that:During detection, by first Float (103) hanging is in detect tank (4), force-sensing sensor (101), the first transmitter and part corrosion-resistant messenger wire (102) position Above detect tank (4).
- 4. the concentration detection system according to claim 1 using integration technology, it is characterised in that:The floating type concentration Detection means (2) includes the second float (201), and one end of the second float (201), which is provided with, protrudes from end face and vertical with end face Float lever (202), the sidepiece of float lever (202) is provided with the displacement transducer for detecting float lever (202) displacement (203), displacement transducer (203) is connected with the second transmitter, and the second transmitter is connected with controller, the second float (201) and It is internal that float lever (202) can be placed in detect tank (4).
- 5. the concentration detection system according to claim 4 using integration technology, it is characterised in that:During detection, second is floating Sub (201), float lever (202) are vertically arranged, and the second float (201) are positioned in detect tank (4), part float lever (202) In detect tank (4), displacement transducer (203), the second transmitter and part float lever (202) are located above detect tank (4), Second float (201) is cylinder, and float lever (202) is cylinder, and the second float (201) is straight with float lever (202) The ratio between footpath is bigger, and floating type concentration detection apparatus (2) is sensitiveer.
- 6. the concentration detection system according to claim 1 using integration technology, it is characterised in that:The differential concentration Detection means (3) includes fix bar (303), and spaced corrosion resistant first pressure sensing is provided with fix bar (303) Device (301) and second pressure sensor (302), one end of fix bar (303) are provided with and first pressure sensor (301) and The 3rd supporting transmitter (304) of two pressure sensors (302), first pressure sensor (301) and second pressure sensor (302) it is connected respectively with the 3rd transmitter (304), the 3rd transmitter (304) is connected with controller, during detectable concentration, fix bar (303) the other end is vertically placed in detect tank (4), and first pressure sensor (301) and second pressure sensor (302) are respectively In detect tank (4).
- 7. the concentration detection system according to claim 6 using integration technology, it is characterised in that:It is described solid during detection The lower end of fixed pole (303) abuts with the bottom of detect tank (4), at the close liquid level of solution to be detected of second pressure sensor (302), First pressure sensor (301) is close to the bottom of detect tank (4).
- 8. the concentration detection system according to claim 1 using integration technology, it is characterised in that:The detect tank (4) Top be provided with feed tube (51), be provided with valve (6) on feed tube (51), the feed tube (51) is to be treated in workshop appliance Detecting the branch line of work liquid pipeline (5), the side wall upper part of the detect tank (4) offers overfall (401), during detection, Overflow liquid level in each detect tank (4) is located on same horizontal plane.
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