CN206725447U - Cr VI on-line computing model in a kind of water - Google Patents
Cr VI on-line computing model in a kind of water Download PDFInfo
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- CN206725447U CN206725447U CN201720332136.1U CN201720332136U CN206725447U CN 206725447 U CN206725447 U CN 206725447U CN 201720332136 U CN201720332136 U CN 201720332136U CN 206725447 U CN206725447 U CN 206725447U
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Abstract
The utility model discloses Cr VI on-line computing model in a kind of water, belong to environmental monitoring technology FIELD OF THE INVENTIONThe.It includes PLC control system, multi-channel direction selecting valve, liquid storing tube, metered shot pump and detection means, multi-channel direction selecting valve respectively with water sample, reagent bottle, liquid storing tube, detection means connects with discharging tube, the liquid storing tube connects with metered shot pump, the detection means includes resolution bottle, launch light pipe, with reference to reception pipe and receive light pipe, the transmitting light pipe and the both sides for receiving light pipe and being symmetrically installed on resolution bottle, it is described to be located at reference to reception pipe above the side of the transmitting light pipe, multi-channel direction selecting valve, metered shot pump, launch light pipe, it is connected with reference to reception pipe and reception light pipe with PLC control system.The utility model solves the problems, such as that causing colorimetric detection result to produce when unstable circuit voltage or transmitting light pipe aging fluctuates, on-line computing model antijamming capability is improved, so as to improve the stability of monitoring result and accuracy.
Description
Technical field
The utility model belongs to water quality monitoring equipment technical field, online more specifically to Cr VI in a kind of water
Monitor.
Background technology
Cr VI is carcinogen, belongs to first kind environmental contaminants, is mainly present in the form of chromate, bichromate
In the industrial wastewaters such as plating, surface treatment, process hides, metallurgy.Along with the discharge of industrial wastewater, loss, the diffusion meeting of Cr VI
Significant damage is caused to ecological environment, causes water body and soil pollution, and then serious threat is caused to health.Cr VI is examined
Diphenyl carbazide spectrophotometry utilization is the most extensive in survey technology, i.e., in acid condition, the Cr VI in water sample and two
Dinitrodiphenyl carbazide is acted on, and diphenylcarbazide is first oxidized to phenylhydrazine carbonyl azobenzene by Cr VI, and chromium is then reduced to three in itself
Valency, trivalent chromium and phenylhydrazine carbonyl azobenzene reaction solution, generate aubergine complex, with colorimeter or spectrophotometer in 540nm
The quantitative test complex solution.At present, the Cr VI online auto monitoring equipment of most domestic, automaticity is relatively low,
It is difficult to the continuous dynamic change of reflection water quality in real time and the truth of discharge of pollutant sources, clears up the old of bottle gas leakage and circuit element
Situations such as change, can also have a strong impact on that the sensitivity of monitor and stability thus can not realize heavy metal Cr VI quick and precisely
Monitoring.
Chinese utility model, publication number：203299130U, publication date：On November 20th, 2013, disclose a kind of adjustable inspection
The High-temperature Digestion colorimetric device that location is put, is specifically included：Briquetting, sealing ring, clear up colorimetric cylinder, electrical heating wire, than colour correction mask, colorimetric
Luminescence unit, Explosion-proof cap, cooling fan, temperature sensor, colorimetric receiving unit, support, pipe joint, resolution colorimetric cylinder pass through upper
Lower lock block is fixed in support, and upper holder block has steam vent, and lower lock block has feed liquor/leakage fluid dram, there is screwed pipe joint connection on briquetting
External equipment：There is shrinkage pool on resolution colorimetric cylinder, place temperature sensor, outside winding electrical heating wire；Cooling fan face is cleared up
Colorimetric cylinder is rack-mount；Colorimetric luminescence unit, colorimetric receiving unit are symmetrically mounted on two stent outers, and upper-lower position can
With adjustment；Explosion-proof cap is installed on device front.The device integrates High-temperature Digestion and colorimetric detection function, compact-sized, inspection
Accurate, safe, modularized design is surveyed, connection is easy to use.But it is disadvantageous in that：Usual colorimetric detection is main
It is that light source and electrooptical device are placed under same environment, is drawn optical signal by colorimetric luminescence unit and colorimetric receiving unit
Enter to resolution colorimetric cylinder both sides, the amount of pollutant in water sample is calculated according to the absorbance change detected, but work as circuit voltage
During unstable either colorimetric luminescence unit aging, the intensity size of the light of colorimetric luminescence unit transmitting can produce fluctuation, result in
Colorimetric receiving unit reception value produces fluctuation, and then influences the accuracy of measured value.
Chinese utility model, publication number：105466858A, publication date：On April 6th, 2016, disclose integral type resolution ratio
Color pond, specifically include colorimetric pipe mounting seat, colorimetric cylinder, colorimetric cylinder fixing bolt, Reagent Tube fastening bolt, sealing sleeve pipe and sealing
Circle；Colorimetric cylinder fixing bolt is internally threaded hole and through hole, and sealing sleeve pipe is installed in through hole；Reagent Tube fastening bolt is spirally connected
On screwed hole, its bottom is pressed together on sealing sleeve pipe top, and sealing ring, colorimetric cylinder fixing bolt are provided with sealing sleeve pipe bottom
Spiral shell is in the colorimetric pipe mounting seat respectively, carries out engaging with the interface of colorimetric cylinder respectively using the sealing ring in sealing sleeve pipe close
Envelope.The interface tube that the device contrasts colour tube using the big envelope pipe of Teflon material and the sealing ring of fluorubber material is sealed,
It is high temperature resistant, corrosion-resistant, increase the service life, improve sealing effectiveness, can effectively prevent the leakage of reagent, save detection and use
Sample size and reagent consumption, also reduce the exhaust emission of waste liquid.But it is disadvantageous in that：(1) still exist
The problem of same with foregoing utility model, i.e., when the unstable either colorimetric luminescence unit aging of circuit voltage, detection measurement number
Value is also easy to produce fluctuation, monitors less stable；(2) Reagent Tube fastening bolt is screwed onto on screwed hole, and common bolt is circle
Column type, gap is had when coordinating with screwed hole, air-tightness is poor, thus is vulnerable to external environment influence during resolution reaction and causes to examine
Result is surveyed to be forbidden；(3) resolution reaction can produce substantial amounts of heat, and temperature is larger at the end of reaction, be not easy immediately to carry out waste liquid
Colorimetric detection and outer row, the device radiation is poor, thus detection cycle is poor, and then reduces water quality detection equipment work effect
Rate.
The content of the invention
1st, to solve the problems, such as
Easily it is disturbed for Cr VI on-line computing model colorimetric detection in existing water, testing result is also easy to produce asking for fluctuation
Topic, the utility model provide Cr VI on-line computing model in a kind of water.It can accurately, stably monitor Cr VI in water and contain
Amount, preferably meets environmental monitoring requirement.
2nd, technical scheme
To solve the above problems, the utility model adopts the following technical scheme that.
Cr VI on-line computing model in a kind of water, including PLC control system, multi-channel direction selecting valve, liquid storing tube, metered shot
Pump and detection means, multi-channel direction selecting valve connects with water sample, reagent bottle, liquid storing tube, detection means and discharging tube respectively, described to deposit
Liquid pipe connects with metered shot pump, and the detection means includes resolution bottle, transmitting light pipe, with reference to reception pipe and reception light pipe, institute
Transmitting light pipe and the both sides for receiving light pipe and being symmetrically installed on resolution bottle are stated, the transmitting light pipe refers to reception pipe with described
Positioned at it is described resolution bottle the same side, and it is described with reference to reception pipe positioned at it is described transmitting light pipe side above, multi-channel direction selecting valve,
Metered shot pump, launch light pipe, be connected with reference to reception pipe and reception light pipe with PLC control system.The Opto-electrical Section of detection means
System carries out closed-loop control, detects transmitting light pipe emitted luminescence intensity by reference to reception pipe, PLC control system is according to reference to reception pipe
The signal control transmitting light pipe of feedback adjusts accordingly, and so as to ensure that the stability of emitted luminescence intensity, has detection means
Standby certain antijamming capability, effectively raise the stability of on-line computing model.
Further, described metered shot pump includes pump line, piston and traction motor, the pump line and the liquid storing tube
Connection, the piston are located in pump line, and the traction motor is connected with the piston, the traction motor and PLC control system
Connection.The rotational band piston of traction motor moves up and down in pump line, and the extraction or discharge for liquid provide power, draw horse
It is linear up to the number of turns of rotation and distance that piston moves in pump line, thus accurately controlled and led by PLC control system
Draw the accurate quantification that the rotation of motor can complete liquid.
Further, the detection means includes protective cover, and the top and bottom of the protective cover are provided with groove, described to disappear
The top and bottom of solution bottle are fixedly installed in the groove by nut, and the nut is embedded to be cased with seal, the seal
It is connected with tapered thread joint, the tapered thread joint one of the resolution bottle upper end is connected with the resolution valve, the resolution bottle
The tapered thread joint two of lower end connects with the multi-channel direction selecting valve.Seal is usually acidproof fluorine class etc., high temperature resistant and had
The cooperation of flexible material, nut and seal more effectively to clearing up bottle bottle sealing, can bear larger pressure, have
To be isolated from the outside inside resolution bottle for effect, avoids external factor to resolution reaction and the interference of colorimetric detection, prevents examination
The leakage of agent.
Further, the detection means includes liquid feed valve, and the liquid feed valve is arranged on the multi-channel direction selecting valve and institute
State on the pipeline of the connection of tapered thread joint two of resolution bottle lower end.Liquid feed valve can bear high temperature and high pressure, ensure resolution bottle
Sealing, meanwhile, it also avoid multi-channel direction selecting valve with resolution bottle directly connect when resolution reaction directly multichannel is selected to
Valve forms the problem of impact.
Further, the detection means also includes heater strip and temperature sensor, and the heater strip spiral wound exists
The resolution bottle periphery, the temperature sensor are installed in the resolution bottle, and the heater strip and the temperature sensor are equal
It is connected with PLC control system.The temperature sensor being wrapped in the heater strip and insertion resolution bottle of resolution bottle periphery is engaged, real
Temperature Automated condtrol is showed, so as to the temperature of solution in the accurate resolution bottle of regulation in real time.
Further, the detection means also includes radiator fan, and the radiator fan is arranged on the one of the protective cover
Side.Temperature is higher when being arranged outside waste liquid, and the erosion to pipeline is more serious, and the setting of radiator fan contributes to waste liquid quickly to cool down,
So as to realize the quick cooling of high temperature wastewater and outer row.
Further, the radiator fan includes exhaust fan and exhaust fan, and the exhaust fan and the exhaust fan are respectively mounted
In the phase homonymy of the protective cover.Exhaust fan and exhaust fan promote the air inside and outside protective cover to form extremely strong convection current, thus dissipate
It is hot fast, reacted waste liquid temperature fall time is shortened, waste liquid can be discharged quickly.
3rd, beneficial effect
Compared to prior art, the beneficial effects of the utility model are：
(1) Cr VI on-line computing model in water provided by the utility model, light pipe is launched, with reference to reception pipe and reception light pipe
It is connected, is detected with reference to the intensity for the light that reception pipe is launched transmitting light pipe, PLC control system root with PLC control system
Emitted luminescence intensity is calibrated accordingly according to reference to reception pipe feedback signal, it is achieved thereby that closed-loop control, makes transmitting light wave
Dynamic scope reduces, and avoiding circuit voltage shakiness or transmitting light pipe aging causes the intensity size for launching light to produce fluctuation, and
The problem of influenceing the accuracy of measured value；
(2) Cr VI on-line computing model in water provided by the utility model, syringe pump connect with liquid storing tube, multichannel select to
Valve is installed on liquid storing tube bottom by interface channel, and the rotational band piston of traction motor moves up and down in pump line, is liquid storage
Pipe extracts or discharge liquid provides power, the linear pass of distance that the number of turns that traction motor rotates moves with piston in pump line
System, thus accurately control the rotation of traction motor to complete the accurate quantification of liquid, this D-M (Determiner-Measure) construction by PLC control system
It is good with stability, the advantages of accuracy is high；
(3) Cr VI on-line computing model in water provided by the utility model, the seal and taper spiral shell that groove, nut are nested with
The resolution bottle sealing structure of line joint composition can bear larger pressure, good seal performance, effectively will inside resolution bottle and
External world's isolation, external factor is avoided to resolution reaction and the interference of colorimetric detection, make whole detection more stable and effectively；Separately
Outside, under this sealing structure, the solution cleared up in bottle is not susceptible to leak；
(4) Cr VI on-line computing model in water provided by the utility model, resolution valve is opened during clearing up bottle feed liquor, is made
Clear up bottle to be outwards vented, enter resolution bottle so as to be advantageous to reagent and water sample, clear up resolution valve closing guarantee in course of reaction and disappear
Solution reaction is carried out under certain temperature and pressure, without by external environment influence；
(5) Cr VI on-line computing model in water provided by the utility model, liquid feed valve can bear high temperature and high pressure, ensure
Clear up the sealing of bottle；In addition, when multi-channel direction selecting valve directly connects with resolution bottle, resolution reaction is formed to multi-channel direction selecting valve
Directly impact, multi-channel direction selecting valve service life is greatly shortened, and multi-channel direction selecting valve is connected with more structure member, more
Change troublesome in poeration, and the relatively easy convenience of feed liquor valve replacement being independently arranged is a lot；
(6) Cr VI on-line computing model in water provided by the utility model, PLC control system are wrapped in resolution by control
Temperature sensor in the heater strip and insertion resolution bottle of bottle periphery cooperates and realizes the Automated condtrol of temperature, so as to accurate
Really the temperature of solution in bottle is cleared up in regulation in real time, and control resolution bottle is heated to optimum temperature and carries out reaction resolution, so as to improve
Resolution reaction rate, shortens equipment detection cycle；
(7) Cr VI on-line computing model in water provided by the utility model, temperature is higher when waste liquid is arranged outside, and pipeline is invaded
Erosion is more serious, and the natural cooling of waste liquid takes long enough, and has had a strong impact on the operating efficiency of monitor, and radiator fan is set
It is equipped with and helps waste liquid cooling, so as to shorten waste liquid cool time, improves monitor operating efficiency, exhaust fan and exhaust fan promote
The air inside and outside protective cover is formed extremely strong convection current, further shorten the temperature fall time of waste liquid after reaction, waste liquid can be fast
Quickly cooling but and is discharged.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the electro-optical system structural representation of detection means；
Fig. 3 is double heat loss through convection fan scheme of installations；
Fig. 4 is end seal profile above and below resolution bottle；
Fig. 5 is emitted luminescence intensity control principle drawing.
In figure：1st, valve is cleared up；2nd, detection means；3rd, with reference to reception pipe；4th, light pipe is received；5th, light pipe is launched；6th, liquid feed valve；
7th, metered shot pump；8th, liquid storing tube；9th, multi-channel direction selecting valve；10th, bottle is cleared up；11st, heater strip；12nd, radiator fan；13rd, nut；
14th, seal；15th, tapered thread joint.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, Cr VI on-line computing model in a kind of water, including PLC control system, multi-channel direction selecting valve
9th, liquid storing tube 8, metered shot pump 7 and detection means 2, multi-channel direction selecting valve 9 respectively with water sample, reagent bottle, liquid storing tube 8, detection
Device 2 connects with discharging tube, and the liquid storing tube 8 connects with metered shot pump 7, and the detection means 2 includes resolution bottle 10, transmitting
Light pipe 5, with reference to reception pipe 3 and receive light pipe 4, it is described transmitting light pipe 5 and it is described reception light pipe 4 be symmetrically installed on the resolution
The both sides of bottle 10, the transmitting light pipe 5 and described the same side for being located at the resolution bottle 10 with reference to reception pipe 3, and the reference
Reception pipe 3 is positioned at the side of the transmitting light pipe 5, when it is implemented, can be arranged on the side of transmitting light pipe 5 with reference to reception pipe 3
Top, side-lower are arranged on other and can received the position that light pipe 5 launches light occurs, in the present embodiment, with reference to reception
Pipe 3 is arranged on above the side of transmitting light pipe 5, multi-channel direction selecting valve 9, metered shot pump 7, launches light pipe 5, with reference to the and of reception pipe 3
Receive light pipe 4 to be connected with PLC control system, so as to improve the automaticity of on-line computing model monitoring.Transmitting light pipe 5,
Closed-loop control is carried out with reference to the electro-optical system of reception pipe 3, reception light pipe 4 and PLC control system composition detection means, by reference to
The detection transmitting emitted luminescence intensity of light pipe 5 of reception pipe 3, PLC control system is according to the signal control transmitting light fed back with reference to reception pipe 3
Pipe 5 adjusts accordingly, for example, in monitoring process, PLC control system sets the transmitting emitted luminescence intensity of light pipe 5 as X, reference
The luminous intensity that reception pipe 3 receives feeds back to PLC control system for Y and by result is received, if transmitting light pipe 5 by circuit aging or
The influence for the factors such as circuit voltage is unstable, then X and Y value are unequal, PLC control system according to reference to the value of feedback of reception pipe 3 and
Launch the size that the default value of light pipe 5 judges the transmitting emitted luminescence intensity degree of fluctuation of light pipe 5, PLC control system passes through adjustment
Launch the size of the both end voltage of light pipe 5, ensure that the transmitting emitted luminescence intensity of light pipe 5 meets sets requirement, so as to ensure that transmitting light
The stability of intensity, detection means is possessed certain antijamming capability, effectively raise the standard of on-line computing model testing result
True property and stability.
Described metered shot pump 7 includes pump line, piston and traction motor, and the pump line connects with the liquid storing tube 8, institute
Piston is stated to be located in pump line, the traction motor is connected with the piston, the rotational band piston of traction motor in pump line on
Lower motion, power is provided to be pumped into or discharging liquid storing tube 8 by liquid, the number of turns that traction motor rotates moves with piston in pump line
Distance it is linear, the traction motor is connected with PLC control system, by PLC control system accurately control traction horse
The rotation reached can complete the accurate quantification of liquid.
The detection means 2 includes protective cover, and the top and bottom of the protective cover are provided with groove, the resolution bottle 10
Top and bottom are fixedly installed in the groove by nut 13, and the nut 13 is embedded to be cased with seal 14, by adjusting spiral shell
Mother 13 adjusts seal 14 to clearing up the pressure force of bottle 10, and then improves the air-tightness of resolution bottle 10, and tapered thread joint 15 is pacified
In the hole being engaged on seal 14 with tapered thread joint, tapered thread joint 15 has conical by its shape and screw thread knot
Structure, helicitic texture coordinates with the internal thread hole on seal 14 can prevent longitudinal loosening, and conical by its shape can be with seal 14
Be brought into close contact, be not easy because resolution the internal pressure of bottle 10 is excessive cause seal 14 to deform fall off, the resolution bottle
The tapered thread joint one of 10 upper ends is connected with the resolution valve 1, the tapered thread joint two of resolution bottle 10 lower end and institute
Multi-channel direction selecting valve 9 is stated to connect.
The detection means 2 includes liquid feed valve 6, and the liquid feed valve 6 is arranged on the multi-channel direction selecting valve 9 and the resolution
On the pipeline that the tapered thread joint two of 10 lower ends of bottle connects, liquid feed valve 6 can bear high temperature and high pressure, ensure resolution bottle 10
Sealing；If multi-channel direction selecting valve 9 directly connects with resolution bottle 10, resolution reaction is formed directly to multi-channel direction selecting valve 9
Impact, the service life of multi-channel direction selecting valve 9 is greatly shortened, and multi-channel direction selecting valve 9 is connected with more structure member, is changed
It is troublesome in poeration, and to change relatively easy convenience many for the liquid feed valve 6 being independently arranged.
The detection means 2 also includes heater strip 11 and temperature sensor, and the spiral wound of heater strip 11 is described
The periphery of bottle 10 is cleared up, the temperature sensor is installed in the resolution bottle 10, the heater strip 11 and the temperature sensor
It is connected with PLC control system, it is achieved thereby that temperature is accurate in resolution bottle 10, adjusts in real time, ensures that resolution bottle 10 heats
Resolution reaction is carried out to optimum temperature, so as to improve resolution reaction rate, shortens equipment detection cycle.
The detection means 2 also includes radiator fan 12, and the radiator fan 12 is arranged on the side of the protective cover, institute
Stating radiator fan 12 includes exhaust fan and exhaust fan, and the exhaust fan and the exhaust fan are installed in the identical of the protective cover
Air outside protective cover is pumped into protective cover by side, exhaust fan, and exhaust fan will protect the air in morning to discharge, thus promote to protect
The inside and outside air of cover forms extremely strong convection current, and radiating rate is fast, shortens the temperature fall time of waste liquid after reaction, waste liquid can be quick
Cool down and discharge.
The utility model is further described below with reference to specific embodiment.
Embodiment 1
As shown in Figure 1, Figure 2 with shown in Fig. 5, Cr VI on-line computing model in a kind of water, including PLC control system, multichannel select
To valve 9, liquid storing tube 8, metered shot pump 7 and detection means 2, multi-channel direction selecting valve 9 respectively with water sample, reagent bottle, liquid storing tube 8,
Detection means 2 connects with discharging tube, and the liquid storing tube 8 connects with metered shot pump 7, the detection means 2 include resolution bottle 10,
Launch light pipe 5, with reference to reception pipe 3 and receive light pipe 4, the transmitting light pipe 5 and the reception light pipe 4 are symmetrically installed on described
The both sides of bottle 10, the transmitting light pipe 5 and described the same side for being located at the resolution bottle 10 with reference to reception pipe 3 are cleared up, and it is described
With reference to reception pipe 3 positioned at the side of the transmitting light pipe 5, when it is implemented, transmitting light pipe 5 can be arranged on reference to reception pipe 3
Side above, side-lower or be arranged on other and can receive the position that light pipe 5 launches light occurs, in the present embodiment, reference
Reception pipe 3 is arranged on above the side of transmitting light pipe 5, multi-channel direction selecting valve 9, metered shot pump 7, launches light pipe 5, with reference to reception pipe
3 and receive light pipe 4 be connected with PLC control system.Launch light pipe 5, with reference to reception pipe 3 and reception light pipe 4 and PLC control system
The electro-optical system of closed loop is formed, is detected with reference to the intensity for the light that reception pipe 3 is launched transmitting light pipe 5, PLC control system
Emitted luminescence intensity is calibrated accordingly according to reference to the feedback signal of reception pipe 3, to realize closed-loop control, makes transmitting light beats
Scope reduces, and avoids circuit voltage shakiness or launches the intensity size generation fluctuation that light pipe aging causes to launch light, and shadow
The problem of ringing the accuracy of measured value, thus the present apparatus has jamproof advantage, for example, in monitoring process, PLC controls
The default transmitting emitted luminescence intensity of light pipe 5 is X, is fed back to reference to the luminous intensity that reception pipe 3 receives for Y and by result is received
PLC control system, if transmitting light pipe 5 is by circuit aging or circuit voltage is unstable etc., factor is influenceed, X and Y value not phase
According to reference to the value of feedback of reception pipe 3 and transmitting light pipe 5 default value judge that transmitting light pipe 5 launches light intensity Deng, PLC control system
The size of degree of fluctuation is spent, PLC control system launches the size of the both end voltage of light pipe 5 by adjusting, and ensures that transmitting light pipe 5 is launched
Luminous intensity meets sets requirement.
Embodiment 2
Cr VI on-line computing model in a kind of water, its structure compared with Example 1, except that：Described metering note
Penetrating pump 7 includes pump line, piston and traction motor, and the pump line connects with the liquid storing tube 8, and the piston is located in pump line, institute
State traction motor to be connected with the piston, the traction motor is connected with PLC control system.Metered shot pump 7 connects with liquid storing tube 8
Logical, multi-channel direction selecting valve 9 is installed on the bottom of liquid storing tube 8 by interface channel, and the rotational band piston of traction motor is in pump line
Move up and down, provide power to be pumped into or discharging liquid storing tube 8 by liquid, the number of turns that traction motor rotates is moved with piston in pump line
Dynamic distance is linear, thus accurately controls the rotation of traction motor to complete the essence of liquid by PLC control system
It is determined that amount.
Embodiment 3
As shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, Cr VI on-line computing model in a kind of water, its structure compared with Example 1,
Except that：The detection means 2 includes protective cover, and protective cover is enclosed type and light tight, guarantor of the colorimetric detection in closing
Carried out in shield, avoid the influence of extraneous light, thus improve the Stability and veracity of testing result, the protective cover
Top and bottom be provided with groove, the top and bottom of the resolution bottle 10 are fixedly installed in the groove by nut 13, institute
State that nut 13 is embedded to be cased with seal 14, seal 14 is fluorine class material, and fluorine class seal 14 has corrosion-resistant, heat-resisting quantity
Can, directly it can be contacted with clearing up the solution of bottle 10, due to the 14 flexible deformation of fluorine class seal, when two end nuts 13 screw
Resolution bottle 10 extrudes groove on fluorine class seal 14, so that resolution bottle 10 and fluorine class seal 14 engage closer, raising
The air-tightness of resolution bottle 10, the seal 14 are connected with tapered thread joint 15, the nipple of pyramidal structure and sealing
Part 14 is closely connected, and gas leakage, the cone of resolution bottle 10 upper end are also effectively prevent while not influenceing and clearing up 10 feed liquor of bottle
Shape nipple one is connected with the resolution valve 1, and the tapered thread joint two of resolution bottle 10 lower end selects with the multichannel
Connected to valve 9.
Embodiment 4
As shown in Figure 1, Figure 2 and Figure 4, Cr VI on-line computing model in a kind of water, compared with Example 3, institute is or not its structure
Be：The detection means 2 includes liquid feed valve 6, and the liquid feed valve 6 is arranged on the multi-channel direction selecting valve 9 and the resolution
On the pipeline that the tapered thread joint two of 10 lower ends of bottle connects.Liquid feed valve 6 can bear high temperature and high pressure, ensure resolution bottle 10
Sealing, meanwhile, it also avoid multi-channel direction selecting valve 9 with resolution bottle 10 directly connect when resolution react directly multichannel is selected to
Valve 9 forms the problem of impact.
Embodiment 5
As shown in Figures 1 to 5, Cr VI on-line computing model in a kind of water, its structure are compared with Example 4, different
It is：The detection means 2 also includes heater strip 11 and temperature sensor, and the spiral wound of heater strip 11 is in the resolution bottle
10 peripheries, the temperature sensor are installed in the resolution bottle 10, and the heater strip 11 and the temperature sensor are and PLC
Control system is connected.Heater strip 11 is controlled to resolution by PLC control system after water sample, reagent are pushed in resolution bottle 10
Bottle 10 is heated, and temperature signal is fed back to PLC control system by temperature sensor in real time, ensures the resolution reaction of water sample and reagent
Carried out in optimum temperature range, improve resolution reaction efficiency.
Embodiment 6
As shown in Figures 1 to 5, Cr VI on-line computing model in a kind of water, its structure are compared with Example 5, different
It is：The detection means 2 also includes radiator fan 12, and the radiator fan 12 is arranged on the side of the protective cover.It is described to dissipate
Hot-air fan 12 includes exhaust fan and exhaust fan, and the exhaust fan and the exhaust fan are installed in the phase homonymy of the protective cover,
Air outside protective cover is pumped into protective cover by exhaust fan, and exhaust fan will protect the air in morning to discharge, thus promote protective cover
Inside and outside air forms extremely strong convection current, and radiating efficiency is high.To the end of reaction is cleared up, after the completion of colorimetric detection, exhaust fan is opened
And exhaust fan, waste liquid cool down rapidly, therefore wait very short time to discharge, so as to shorten the monitoring of equipment cycle, improve
Equipment operating efficiency.
Claims (7)
1. Cr VI on-line computing model in a kind of water, including PLC control system, multi-channel direction selecting valve (9), liquid storing tube (8), metering
Syringe pump (7) and detection means (2), multi-channel direction selecting valve (9) respectively with water sample, reagent bottle, liquid storing tube (8), detection means (2)
Connected with discharging tube, the liquid storing tube (8) connects with metered shot pump (7), the detection means (2) include resolution bottle (10),
Launch light pipe (5) and receive light pipe (4), the transmitting light pipe (5) and the reception light pipe (4) are symmetrically installed on the resolution
The both sides of bottle (10), multi-channel direction selecting valve (9), metered shot pump (7), transmitting light pipe (5) and reception light pipe (4) are controlled with PLC
System connection processed, it is characterised in that the detection means (2) also includes referring to reception pipe (3), the transmitting light pipe (5) and institute
State with reference to reception pipe (3) positioned at the same side of the resolution bottle (10), and the reference reception pipe (3) is located at the transmitting light pipe
(5) side, it is described to be connected with reference to reception pipe (3) with PLC control system.
2. Cr VI on-line computing model in water according to claim 1, it is characterised in that described metered shot pump (7)
Including pump line, piston and traction motor, the pump line connects with the liquid storing tube (8), and the piston is located in pump line, described to lead
Draw motor to be connected with the piston, the traction motor is connected with PLC control system.
3. Cr VI on-line computing model in water according to claim 1, it is characterised in that the detection means (2) includes
Protective cover, the top and bottom of the protective cover are provided with groove, and the top and bottom of the resolution bottle (10) are by nut (13)
It is fixedly installed in the groove, the nut (13) is embedded to be cased with seal (14), and the seal (14) connects with tapered thread
Head (15) connection, the tapered thread joint one of described resolution bottle (10) upper end is connected with resolution valve (1), under the resolution bottle (10)
The tapered thread joint two at end connects with the multi-channel direction selecting valve (9).
4. Cr VI on-line computing model in water according to claim 3, it is characterised in that the detection means (2) includes
Liquid feed valve (6), the liquid feed valve (6) are arranged on the multi-channel direction selecting valve (9) and the taper spiral shell of described resolution bottle (10) lower end
On the pipeline that line joint two connects.
5. Cr VI on-line computing model in water according to claim 3, it is characterised in that the detection means (2) is also wrapped
Heater strip (11) and temperature sensor are included, heater strip (11) spiral wound is in described resolution bottle (10) periphery, the temperature
Degree sensor is installed in resolution bottle (10), and the heater strip (11) and the temperature sensor are and PLC control system
It is connected.
6. Cr VI on-line computing model in water according to claim 5, it is characterised in that the detection means (2) is also wrapped
Radiator fan (12) is included, the radiator fan (12) is arranged on the side of the protective cover.
7. Cr VI on-line computing model in water according to claim 6, it is characterised in that the radiator fan (12) includes
Exhaust fan and exhaust fan, the exhaust fan and the exhaust fan are installed in the phase homonymy of the protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332136.1U CN206725447U (en) | 2017-03-31 | 2017-03-31 | Cr VI on-line computing model in a kind of water |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208258A (en) * | 2019-06-19 | 2019-09-06 | 沈阳理工大学 | Catalytic digestion column and its preparation method, CODCrRapid determination device and its make method |
| CN110368845A (en) * | 2019-08-27 | 2019-10-25 | 广州泰道安医疗科技有限公司 | A kind of chlorine-containing disinfecting water production device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208258A (en) * | 2019-06-19 | 2019-09-06 | 沈阳理工大学 | Catalytic digestion column and its preparation method, CODCrRapid determination device and its make method |
| CN110208258B (en) * | 2019-06-19 | 2021-09-24 | 沈阳理工大学 | Catalytic digestion column, preparation method thereof and CODCrRapid measuring apparatus and method of using the same |
| CN110368845A (en) * | 2019-08-27 | 2019-10-25 | 广州泰道安医疗科技有限公司 | A kind of chlorine-containing disinfecting water production device |
| CN110368845B (en) * | 2019-08-27 | 2024-02-09 | 广州泰道安医疗科技有限公司 | Chlorine-containing disinfectant fluid production equipment |
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