CN209247626U - Suitable for free chloro concentration or the on-line detector of total cl concn - Google Patents
Suitable for free chloro concentration or the on-line detector of total cl concn Download PDFInfo
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- CN209247626U CN209247626U CN201821994353.8U CN201821994353U CN209247626U CN 209247626 U CN209247626 U CN 209247626U CN 201821994353 U CN201821994353 U CN 201821994353U CN 209247626 U CN209247626 U CN 209247626U
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Abstract
The utility model belongs to detection technique field, more particularly to a kind of suitable for free chloro concentration or the on-line detector of total cl concn, it includes sensing chamber, sampling line, array reagent bottle and single-chip microcontroller, detection is indoor to have transparent cuvette, photophore and light intensity sensor, photophore and light intensity sensor are located at the two sides of cuvette, sampling line accesses in the cuvette of sensing chamber, inlet valve is installed on sampling line, reagent in every group reagent bottle can be fed in cuvette by reagent cartridge, be respectively mounted peristaltic pump on each reagent cartridge；Sensing chamber is equipped with discharge outlet, installs drain valve at discharge outlet；Inlet valve, drain valve, photophore, light intensity sensor and each peristaltic pump are all connected with single-chip microcontroller.It can ensure the accuracy of testing result by the utility model, finally meet the accurate testing requirements of residual chlorine concentration in haemodialysis water, meanwhile, sample detecting reproducible is, it can be achieved that real time sample and complete on-line checking.
Description
Technical field
The utility model relates to a kind of suitable for free chloro concentration or the on-line detector of total cl concn, belong to detection technique
Field.
Background technique
Chlorine residue refer to chlorine investment water in after, in addition to consume one the effects of bacterium, microorganism, organic matter, inorganic matter in water
Outside the chlorine dose of part, a part of chlorine dose there remains, this part chlorine dose can be divided into more than combined residual chlorine and free property chlorine residue, chlorine residue
Chlorine, the sum of combined residual chlorine and free residual chlorine are known as total chlorine.
In order to inhibit the hygienic articles mass propagation such as bacterium, Escherichia coli, contain a certain amount of chlorine residue in water supply pipe, in water
In treatment industry, tap water after treatment gained pure water in can still have chlorine residue.But if chlorine residue is exceeded, on the one hand,
It can make reverse osmosis membrane oxidative degradation, shorten the service life of film；On the other hand, according to U.S.'s AAMI standard, in water for dialysis
Total cl concn will be lower than 0.lmg/L, in practical blood dialysis, if chlorine residue is exceeded in water for dialysis, and the chlorine of high concentration
Amine can be generated with the hemoglobin in blood samples of patients to react, and destroys erythrocyte membrane, patient's hemochrome is caused to decline, clinical manifestation is
Expiratory dyspnea, backache, pink colour blood plasma or venous return line are in red grape, and hematocrit is decreased obviously, and seriously patient can be caused dead
It dies.Therefore total chlorine index in haemodialysis water is particularly critical.
The detection method of total cl concn is all kinds of in water process at present, such as carries out chlorine residue detection using residual chlorine sensor,
But testing result inaccuracy, is not able to satisfy the accurate testing requirements of residual chlorine concentration in haemodialysis water, in haemodialysis water
Chlorine residue detection or by old-fashioned artificial sample measurement method, but artificial sample detection is easy by operator's gimmick, vision
The factors such as color difference influence, and final detection data is made deviation occur.
Utility model content
Technical problem to be solved by the utility model is: overcoming deficiency in the prior art, provide a kind of suitable for free
The on-line detector of cl concn or total cl concn can satisfy the accurate testing requirements of residual chlorine concentration in haemodialysis water.
On-line detector described in the utility model suitable for free chloro concentration or total cl concn, including sensing chamber, take
Sample pipeline, array reagent bottle and single-chip microcontroller, detection is indoor to have transparent cuvette, the photophore (optical wavelength that photophore issues
For 515nm) and light intensity sensor, photophore and light intensity sensor are located at the two sides of cuvette, sampling line access
In the cuvette of sensing chamber, inlet valve is installed on sampling line, the reagent in every group reagent bottle can be fed by reagent cartridge
In cuvette, peristaltic pump is respectively mounted on each reagent cartridge；Sensing chamber is equipped with discharge outlet, installs drain valve at discharge outlet；Water inlet
Valve, drain valve, photophore, light intensity sensor and each peristaltic pump are all connected with single-chip microcontroller.
The utility model carries out on-line checking to free chloro concentration or total cl concn using optical colorimetric method, and sample is sampled
Pipeline enters in the cuvette of sensing chamber, and inlet valve is closed after filling it up with sample, keeps sample size, peristaltic pump needed for starting at this time,
Required reagent is added in cuvette, is reacted with sample, while photophore shines, light intensity detector detects luminous intensity,
By the absorbance of test sample reaction front and back, total cl concn is calculated in sample or free chloro concentration (is calculated and relied on
Computer program belong to technology well known to those skilled in the art), after obtaining this group of data, open inlet valve, contrastive colours ware
It is rinsed, and water is discharged by discharge outlet, then carry out subsequent lasting detection.On the one hand this on-line detector simulates completely
Artificial sample detection method, while the interference from human factor in traditional artificial sampling detection process is eliminated, so as to ensure
The accuracy of testing result can satisfy the accurate testing requirements of residual chlorine concentration in haemodialysis water, on the other hand, repeatability
It is good, it can be realized real time sample, and complete on-line checking.
At present when cl concn total using artificial detection, need to select buffer, DPD test solution and three kinds of liquor kalii iodide examinations
Agent, therefore when realizing total cl concn on-line checking by the utility model, it needs reagent needed for three kinds being respectively charged into three
In reagent bottle, and the reagent of required dosage is added in sample by corresponding peristaltic pump and is reacted.
And when artificial detection free chloro concentration, it needs to select two kinds of buffer, DPD test solution reagents, so existing in free chlorine
When line detects, reagent needed for both need to be only respectively charged into two reagent bottles, and pass through corresponding peristaltic pump for institute
It needs the reagent of dosage to be added in sample to be reacted.
Except above-mentioned points, because of sample size difference, required amount of reagent also has difference, therefore before detection, needs according to setting
Samples taken meter calculate needed for various reagents amount, and set.
Preferably, filter is installed on sampling line, is used for impurity screening.
Preferably, on sampling line install pH value detection device, pH value detection device between filter and inlet valve,
And it connects single-chip microcontroller.The pH value of sample can be measured by pH value detection device.
Preferably, conductivity detector is installed, conductivity detector is located at filter and inlet valve on sampling line
Between, and it connects single-chip microcontroller.The conductivity of sample can be measured by conductivity detector.
Preferably, temperature-detecting device is installed on sampling line, temperature-detecting device between filter and inlet valve,
And it connects single-chip microcontroller.The temperature of sample can be measured by temperature-detecting device.
Preferably, flow regulator is installed, flow regulator is located at before inlet valve, and it is connected on sampling line
Single-chip microcontroller.The temperature of sample can be measured by temperature-detecting device.It can directly be set according to design by flow regulator
Constant flow, flow regulator can be automatic to eliminate in sampling line because of the stream caused by the factors such as pressure oscillation under water effect
Deviation is measured, it is final to keep setting flow constant.
Preferably, water inlet valve and a drain valve are all made of solenoid valve, and each solenoid valve connects single-chip microcontroller, are realized certainly by solenoid valve
Dynamic control.
Possessed beneficial effect is the utility model compared with prior art:
It is ingenious that the structure design of the utility model is reasonable, not only simulates artificial sample detection method completely, but also eliminate tradition
It is saturating to can satisfy blood so as to ensure the accuracy of testing result for interference from human factor in artificial sample detection process
The accurate testing requirements of analysis residual chlorine concentration in water, meanwhile, sample detecting it is reproducible, can be realized real time sample, and complete
At on-line checking.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, sampling line；2, filter；3, pH value detection device；4, conductivity detector；5, temperature detection fills
It sets；6, flow regulator；7, inlet valve；8, sensing chamber；9, drain valve；10, discharge outlet；11, photophore；12, cuvette；
13, light intensity sensor；14, single-chip microcontroller；15, reagent cartridge；16, peristaltic pump；17, reagent bottle three；18, reagent bottle two；19, it tries
Agent bottle one.
Specific embodiment
The embodiments of the present invention are described further with reference to the accompanying drawing:
As shown in Figure 1, the on-line detector described in the utility model suitable for free chloro concentration or total cl concn includes
Sensing chamber 8, sampling line 1, three group reagent bottles (respectively reagent bottle 1, reagent bottle 2 18, reagent bottle 3 17) and single-chip microcontroller
14, sensing chamber 8 is interior with transparent cuvette 12, photophore 11 (a length of 515nm of light wave that photophore 11 issues) and luminous intensity
Sensor 13, photophore 11 and light intensity sensor 13 are located at the two sides of cuvette 12, and sampling line 1 accesses sensing chamber 8
Cuvette 12 in, along water inlet direction, successively installed on sampling line 1 filter 2, pH value detection device 3 (such as pH value sense
Device), conductivity detector 4 (such as conductivity sensor), temperature-detecting device 5 (such as temperature sensor), flow regulator 6
(such as flow control valve) and inlet valve 7, the reagent in every group reagent bottle can pass through corresponding reagent cartridge 15 and feed cuvette
In 12, peristaltic pump 16 is respectively mounted on each reagent cartridge 15；Sensing chamber 8 is equipped with discharge outlet 10, installs drain valve at discharge outlet 10
9.Wherein, inlet valve 7 and drain valve 9 are all made of solenoid valve, and pH value detection device 3, conductivity detector 4, temperature detection
Device 5, inlet valve 7, drain valve 9, photophore 11, light intensity sensor 13 and each peristaltic pump 16 are all connected with single-chip microcontroller 14.
The utility model carries out on-line checking to free chloro concentration or total cl concn using optical colorimetric method.Sample is sampled
After filter 2 on pipeline 1 filters, PH is measured through pH value detection device 3, conductivity is measured through conductivity detector 4, through temperature
5 measuring temperature of detection device is spent, hydraulic pressure is adjusted through flow regulator 6, finally enters in the cuvette 12 of sensing chamber 8, it is to be added
After the sample for entering set amount, inlet valve 7 is closed, keeps sample size, required reagent is added peristaltic pump 16 needed for starting later
It in cuvette 12, is reacted with sample, while photophore 11 shines, light intensity detector detects luminous intensity, by detecting sample
The absorbance of product reaction front and back is calculated total cl concn or free chloro concentration in sample and (calculates relied on computer journey
Sequence belongs to technology well known to those skilled in the art), after obtaining this group of data, inlet valve 7 is opened, contrastive colours ware 12 is rushed
It washes, and water is discharged by discharge outlet 10, then carry out subsequent lasting detection.
Two kinds of embodiments presented below, are respectively used to the on-line checking of total cl concn, free chloro concentration.
Embodiment one:
A kind of on-line detector suitable for total cl concn, when use, set every sub-sampling 250ml, while selecting three examinations
Agent bottle: dosage is 5.0ml when containing the buffer that pH value is 6.5 in reagent bottle 1, and controlling detection every time；In reagent bottle
Dosage is 5.0ml when containing DPD test solution in 2 18, and controlling detection every time；It is 5g/L's that concentration is contained in reagent bottle 3 17
Liquor kalii iodide, and controlling dosage when detecting every time is 20.0ml.The cuvette 12 of sensing chamber 8 is added in the sample of set amount
Afterwards, three kinds of reagents are added in the sample of cuvette 12 by corresponding peristaltic pump 16 respectively, are reacted.Pass through light intensity simultaneously
Spend luminous intensity --- the i.e. incident intensity I before detector detection reaction (when three kinds of reagents are not added)0, and after reaction (i.e.
Be added after the reaction of three kinds of reagents) luminous intensity --- i.e. transmitted light intensity I1。
The calculating of total cl concn relies on following two general equation:
Formula one: Y=aX+b,
Wherein: a, b are constant (value and cuvette 12 of a, b are related), and Y is absorbance, and X is total cl concn.
Formula two:
Pass through the incident intensity I detected0And transmitted light intensity I1, total cl concn in sample can be calculated.
Embodiment two:
A kind of on-line detector suitable for free chloro concentration equally sets every sub-sampling 250ml, but is different from embodiment
One be only need to select two reagent bottles: in reagent bottle 1 contain pH value be 6.5 buffer, and control every time detection when
Dosage is 5.0ml；Dosage is 5.0ml when containing DPD test solution in reagent bottle 2 18, and controlling detection every time.In set amount
After the cuvette 12 of sensing chamber 8 is added in sample, two kinds of reagents are added to the sample of cuvette 12 by corresponding peristaltic pump 16 respectively
In product, reacted.Pass through the luminous intensity before light intensity detector detection reaction (when two kinds of reagents are not added) simultaneously ---
That is incident intensity I0, and luminous intensity --- the i.e. transmitted light intensity I (being added after two kinds of reagent reactions) after reaction1。
The calculating of free chloro concentration relies on following two general equation:
Formula two:
Formula three: Y=a1X1+b1,
Wherein: a1、b1It is constant (a1、b1Value it is related with cuvette 12), Y is absorbance, X1For free chloro concentration.
Pass through the incident intensity I detected0And transmitted light intensity I1, free chloro concentration in sample can be calculated.
On-line detector described in the utility model is not only suitable for the on-line checking of total cl concn, and it is dense to be suitable for free chlorine
The on-line checking of degree.And artificial sample detection method can be simulated by this on-line detector completely, while eliminating tradition
Interference from human factor in artificial sample detection process so as to ensure the accuracy of testing result, and meets haemodialysis
With the accurate testing requirements of residual chlorine concentration in water, in addition to this, sample detecting it is reproducible, can be realized real time sample, and
Complete on-line checking.
Claims (7)
1. a kind of suitable for free chloro concentration or the on-line detector of total cl concn, it is characterised in that: including sensing chamber (8), take
Sample pipeline (1), array reagent bottle and single-chip microcontroller (14), have in sensing chamber (8) transparent cuvette (12), photophore (11) and
Light intensity sensor (13), photophore (11) and light intensity sensor (13) are located at the two sides of cuvette (12), probe tube
Line (1) accesses in the cuvette (12) of sensing chamber (8), installs inlet valve (7) on sampling line (1), the examination in every group reagent bottle
Agent can be fed in cuvette (12) by reagent cartridge (15), be respectively mounted peristaltic pump (16) on each reagent cartridge (15)；Detection
Room (8) is equipped with discharge outlet (10), installs drain valve (9) at discharge outlet (10)；Inlet valve (7), drain valve (9), photophore
(11), light intensity sensor (13) and each peristaltic pump (16) are all connected with single-chip microcontroller (14).
2. the on-line detector according to claim 1 for being suitable for free chloro concentration or total cl concn, it is characterised in that: take
Filter (2) are installed on sample pipeline (1).
3. the on-line detector according to claim 2 for being suitable for free chloro concentration or total cl concn, it is characterised in that: take
PH value detection device (3) are installed on sample pipeline (1), pH value detection device (3) is located between filter (2) and inlet valve (7), and
It connects single-chip microcontroller (14).
4. the on-line detector according to claim 2 for being suitable for free chloro concentration or total cl concn, it is characterised in that: take
Conductivity detector (4) are installed on sample pipeline (1), conductivity detector (4) be located at filter (2) and inlet valve (7) it
Between, and it connects single-chip microcontroller (14).
5. the on-line detector according to claim 2 for being suitable for free chloro concentration or total cl concn, it is characterised in that: take
Temperature-detecting device (5) are installed on sample pipeline (1), temperature-detecting device (5) is located between filter (2) and inlet valve (7), and
It connects single-chip microcontroller (14).
6. any on-line detector for being suitable for free chloro concentration or total cl concn, special according to claim 1~5
Sign is: flow regulator (6) are installed on sampling line (1), flow regulator (6) is located at before inlet valve (7), and its
It connects single-chip microcontroller (14).
7. the on-line detector according to claim 6 for being suitable for free chloro concentration or total cl concn, it is characterised in that: into
Water valve (7) and drain valve (9) are all made of solenoid valve, and each solenoid valve connects single-chip microcontroller (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994353.8U CN209247626U (en) | 2018-11-29 | 2018-11-29 | Suitable for free chloro concentration or the on-line detector of total cl concn |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994353.8U CN209247626U (en) | 2018-11-29 | 2018-11-29 | Suitable for free chloro concentration or the on-line detector of total cl concn |
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| Publication Number | Publication Date |
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| CN209247626U true CN209247626U (en) | 2019-08-13 |
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| CN201821994353.8U Active CN209247626U (en) | 2018-11-29 | 2018-11-29 | Suitable for free chloro concentration or the on-line detector of total cl concn |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447477A (en) * | 2021-08-06 | 2021-09-28 | 苏州奥特福环境科技有限公司 | Residual chlorine and total chlorine two-in-one detection system and detection method |
| CN116256325A (en) * | 2023-01-10 | 2023-06-13 | 成都微创自控工程有限公司 | Free chlorine online analysis device and analysis method |
-
2018
- 2018-11-29 CN CN201821994353.8U patent/CN209247626U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447477A (en) * | 2021-08-06 | 2021-09-28 | 苏州奥特福环境科技有限公司 | Residual chlorine and total chlorine two-in-one detection system and detection method |
| CN113447477B (en) * | 2021-08-06 | 2023-08-15 | 苏州奥特福环境科技有限公司 | System and method for detecting total chlorine and residual chlorine in two-in-one mode |
| CN116256325A (en) * | 2023-01-10 | 2023-06-13 | 成都微创自控工程有限公司 | Free chlorine online analysis device and analysis method |
| CN116256325B (en) * | 2023-01-10 | 2023-11-28 | 成都微创自控工程有限公司 | Free chlorine online analysis device and analysis method |
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