CN212808039U - On-line analyzer for residual chlorine in water - Google Patents
On-line analyzer for residual chlorine in water Download PDFInfo
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- CN212808039U CN212808039U CN202021541624.1U CN202021541624U CN212808039U CN 212808039 U CN212808039 U CN 212808039U CN 202021541624 U CN202021541624 U CN 202021541624U CN 212808039 U CN212808039 U CN 212808039U
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Abstract
The utility model discloses an aquatic chlorine residue on-line analyzer, include: the device comprises a cabinet body and a rotatable cabinet door arranged on the cabinet body, wherein a hanging plate is arranged in the cabinet body, and a peristaltic pump, a metering pipe, a multi-way valve, a first high-pressure valve, a reaction tank and a second high-pressure valve which are communicated through a plurality of pipelines are respectively arranged on the hanging plate; a reagent bin for storing reagents and standard liquid is arranged at the bottom of the cabinet body, a supporting cabinet is arranged below the cabinet body, and the hanging plate is arranged above the supporting cabinet; one interface of the multi-way valve is communicated with the reagent bin, one interface of the multi-way valve is communicated with the metering pipe, the metering pipe is communicated with the peristaltic pump, one interface of the multi-way valve is communicated with the first high-pressure valve, the first high-pressure valve is communicated with the reaction tank, the reaction tank is communicated with the second high-pressure valve, and the second high-pressure valve is communicated with the air bottle. The utility model discloses operating personnel and the water sample zero contact that awaits measuring avoid bacterium, virus etc. to propagate through the contact in the measurement process, and the reagent quantity is few and nontoxic, and secondary pollution is few.
Description
Technical Field
The utility model relates to a fluid analysis technical field especially relates to an aquatic residual chlorine on-line analyzer.
Background
Chlorine preparations (chloramine, hypochlorite and the like) can destroy or inhibit pathogenic microorganisms in water and react with reducing substances in water, are convenient to use and low in cost, are a common disinfection treatment mode, and are widely applied to systems such as wastewater treatment, purified water, circulating water, boiler water and the like and the fields of electronics, electroplating, printing and dyeing, chemistry, food, pharmacy and the like. However, in the disinfection process, the excessive chlorine not only affects the smell of water and destroys the quality of the water, but also can react with certain organic matters in the water to generate a series of chlorine-containing organic compounds with 'three-cause' effect, such as chlorinated hydrocarbons like trichloromethane, carbon tetrachloride, bromodichloromethane and the like, thereby causing harm to the environment. Therefore, the free residual chlorine and the total residual chlorine are important parameters for evaluating whether the water quality is disinfected and whether the disinfected water quality reaches the standard and is also one of indexes which are frequently required to be measured in water quality monitoring. According to the regulation of HJ586-2010 (determination of free chlorine and total chlorine in water) by N, N-dimethyl-1, 4-phenylenediamine spectrophotometry), free residual chlorine is present in the form of hypochlorous acid, hypochlorite ions and dissolved elemental chlorine, and combined chlorine is present in the form of chloramine and organic chloramine.
Because the content of free residual chlorine and total residual chlorine in natural water is extremely low and almost can not be detected, and the free residual chlorine and the total residual chlorine in water are very easy to be reduced by microorganisms or air in water, the storage of a sample is difficult, and the measuring result is inaccurate. Currently, the determination methods for free residual chlorine and total residual chlorine in the market mainly include an N, N-dimethyl-1, 4-phenylenediamine (DPD) spectrophotometry and a 3,3 ', 5, 5' -Tetramethylbenzidine (TMB) colorimetric method, and because the analysis steps are complicated, the method is only suitable for being used in laboratories or specific analysis and detection units, and cannot realize online real-time analysis and monitoring of actual application scenes.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of above-mentioned prior art, the utility model aims to provide an aquatic chlorine residue on-line analyzer, operating personnel and the zero contact of water sample that awaits measuring avoid bacterium, virus etc. to propagate through the contact in the measurement process, and the reagent quantity is few and nontoxic, and secondary pollution is few.
The technical scheme of the utility model as follows:
an on-line analyzer for residual chlorine in water, which comprises:
the cabinet body and a rotatable cabinet door arranged on the cabinet body;
a hanging plate is arranged in the cabinet body, and a peristaltic pump, a metering pipe, a multi-way valve, a first high-pressure valve, a reaction tank and a second high-pressure valve which are communicated through a plurality of pipelines are respectively arranged on the hanging plate;
a reagent bin for storing reagents and standard liquid is arranged at the bottom of the cabinet body, a supporting cabinet is arranged below the cabinet body, and the hanging plate is arranged above the supporting cabinet;
one interface of the multi-way valve is communicated with the reagent bin, one interface of the multi-way valve is communicated with the metering pipe, the metering pipe is communicated with the peristaltic pump, one interface of the multi-way valve is communicated with the first high-pressure valve, the first high-pressure valve is communicated with the reaction tank, the reaction tank is communicated with the second high-pressure valve, and the second high-pressure valve is communicated with the air bottle.
Preferably, be provided with water sample bucket, blank cask, volume mark bucket, zero mark bucket, reagent bucket and waste liquid bucket in the reagent storehouse.
Preferably, the multi-way valve comprises: the system comprises a water sample interface, a measuring standard interface, a zero standard interface, a reagent interface, a zero point checking interface, a span checking interface, a public interface, a sample introduction interface and a waste liquid interface;
the water sample interface is communicated with a pretreatment module (not included in the patent), the measuring scale interface is communicated with a measuring scale barrel, the zero scale interface is communicated with the zero scale barrel, the reagent interface is communicated with the reagent barrel, the common interface is communicated with the reaction tank, and the waste liquid interface is communicated with the waste liquid barrel;
the public interface is communicated with the reaction tank, and the sample introduction interface is communicated with the metering pipe.
Preferably, a liquid crystal display screen for personnel to operate is arranged on the cabinet door.
Preferably, the peristaltic pump sets up in the upper portion left side of link plate, the metering tube sets up under the peristaltic pump, the reaction tank sets up the upper portion medial side at the link plate, the multi-way valve sets up under the reaction tank, first high-pressure valve and second high-pressure valve set up the right side at the link plate.
Preferably, the rear side of link plate is provided with the main control board.
Preferably, the metering tube is mounted on the hanging plate through a fixing plate.
Preferably, the bottom of the reaction tank is provided with a liquid discharge port, the liquid discharge port is communicated with a peristaltic pump through a liquid conveying pipeline, and liquid in the reaction tank is discharged to a waste liquid barrel through the peristaltic pump.
Preferably, the rear part of the cabinet body is provided with an on-off switch.
Preferably, an exhaust fan is arranged at the side of the cabinet body.
Compared with the prior art, the on-line analyzer for residual chlorine in water mainly has the following beneficial effects:
in the measuring process, an operator is in zero contact with a water sample to be measured, so that bacteria, viruses and the like are prevented from being transmitted through contact, the reagent dosage is small, the reagent is non-toxic, and the secondary pollution is less.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a schematic view of a first structure of a preferred embodiment of an on-line analyzer for residual chlorine in water according to the present invention.
Fig. 2 is a schematic diagram of a second structure of a preferred embodiment of the on-line analyzer for residual chlorine in water of the present invention.
Fig. 3 is a flow chart of a preferred embodiment of the on-line analyzer for residual chlorine in water of the present invention.
Fig. 4 is a schematic view of a multi-way valve in a preferred embodiment of the on-line analyzer for residual chlorine in water of the present invention.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
As shown in fig. 1 to 3, an on-line analyzer for residual chlorine in water according to a preferred embodiment of the present invention includes a cabinet 100 and a rotatable cabinet door 200 disposed on the cabinet 100; a hanging plate 300 is arranged in the cabinet body 100, and a peristaltic pump 400, a metering pipe 500, a multi-way valve 600, a first high-pressure valve 700, a reaction tank 800 and a second high-pressure valve 900 which are communicated through a plurality of pipelines are respectively arranged on the hanging plate 300; a reagent bin 101 for storing reagents and standard liquid is arranged at the bottom of the cabinet body 100, a supporting cabinet 103 is arranged below the cabinet body 100, and the hanging plate 300 is arranged above the supporting cabinet 103; one interface of the multi-way valve 600 is communicated with the reagent bin 101, one interface of the multi-way valve 600 is communicated with the metering pipe 500, the metering pipe 500 is communicated with the peristaltic pump 400, one interface of the multi-way valve 600 is communicated with the first high-pressure valve 700, the first high-pressure valve 700 is communicated with the reaction tank 800, the reaction tank 800 is communicated with the second high-pressure valve 900, and the second high-pressure valve 900 is communicated with an air bottle (not shown in the figure).
The working process of the analyzer is as follows:
under the control of the main control board, the multi-way valve 600, the metering tube 500 and the peristaltic pump 400 work cooperatively, accurately measure a certain volume of water sample to be measured, and push the water sample into the reaction tank 800; under the control of the main control board, the multi-way valve 600, the metering tube 500 and the peristaltic pump 400 work, accurately measure each component reagent with a certain volume, and push the reagent into the reaction tank 800; the main control board controls the peristaltic pump 400 and the multi-way valve 600 to realize continuous air blowing and uniform solution mixing; the main control board controls the output voltage to the circuit, the voltage signal is processed through the signal processing board, and the measurement result is output and displayed on the display screen of the cabinet door through calculation; then, the reaction liquid in the reaction tank is discharged by the peristaltic pump 400, and the measurement is completed.
In a further preferred embodiment of the present invention, the reagent chamber 101 includes a water sample barrel, a blank water barrel, a measuring standard barrel, a zero standard barrel, a reagent barrel and a waste liquid barrel.
In a further preferred embodiment of the present invention, as shown in fig. 4, the multi-way valve 600 comprises: a water sample interface 601, a volume standard interface 602, a zero standard interface 603, a reagent interface 604, a zero check interface 605, a span check interface 606, a common interface 607, a sample introduction interface 608 and a waste liquid interface 609; the water sample interface 601 is communicated with a water sample barrel, the measuring standard interface 602 is communicated with a measuring standard barrel, the zero standard interface 603 is communicated with a zero standard barrel, the reagent interface 604 is communicated with a reagent barrel, the common interface 607 is communicated with a reaction tank, and the waste liquid interface 609 is communicated with a waste liquid barrel 101; the common interface 607 is communicated with the reaction cell 800, and the sample inlet interface 608 is communicated with the metering tube 500.
As shown in fig. 2, in a further preferred embodiment of the present invention, a liquid crystal display screen 201 is disposed on the cabinet door 200 for operating personnel.
In a further preferred embodiment of the present invention, the peristaltic pump 400 is disposed on the left side of the upper portion of the hanging plate 300, the metering tube 500 is disposed under the peristaltic pump 400, the reaction tank 800 is disposed on the middle side of the upper portion of the hanging plate, the multi-way valve 600 is disposed under the reaction tank 800, and the first high-pressure valve 700 and the second high-pressure valve 900 are disposed on the right side of the hanging plate 300.
In a further preferred embodiment of the present invention, a main control board (not shown in the figure) is disposed at the rear side of the hanging board 300.
In a further preferred embodiment of the present invention, the measuring tube 500 is mounted on the hanging plate 300 through a fixing plate.
In a further preferred embodiment of the present invention, a liquid outlet (not shown in the figure) is provided at the bottom of the reaction tank 800, and the liquid outlet is communicated with the peristaltic pump 400 through a liquid conveying pipeline, through which the peristaltic pump 400 discharges the liquid in the reaction tank 800 to a waste liquid tank.
In a further preferred embodiment of the present invention, the rear portion of the cabinet 100 is provided with an on-off switch.
In a further preferred embodiment of the present invention, the side portion of the cabinet 100 is provided with an exhaust fan 102.
The measurement principle of the analyzer is as follows:
according to lambert-beer's law: when a beam of parallel monochromatic light passes through a uniform sample, the absorbance of the beam of parallel monochromatic light is proportional to the product of the concentration of the light absorbing component and the thickness of the absorption cell:
wherein, A: absorbance; i.e. i0: the intensity of the incident light; i: the intensity of the transmitted light; t: transmittance of light;
k: a proportionality constant related to the wavelength of the incident light, the nature of the light absorbing species in the solution, and the temperature of the solution; b: the thickness of the absorption cell; c: the concentration of the light absorbing component.
By applying a standard solution C with a known concentration1And C2Measuring to determine the corresponding absorbance A1And A2So as to calculate a standard curve of the absorbance A and the component concentration C of the substance to be detected under the condition, and determine the component concentration A of the substance to be detected in the unknown water sample under the same conditionxAnd substituting the following formula to calculate the concentration of free residual chlorine or total residual chlorine in the unknown water sample:
the analyzer is used for testing water containing residual chlorine (0.1mg/L), and the main flow and steps are as follows:
firstly, a calibration process is carried out:
and then carrying out a testing process:
wherein the concentration corresponding to the measuring standard is 1.0 mg/L; the data of the measurement results are shown in the following table:
the data in the table can be used for obtaining that the accuracy of the residual (total) chlorine water sample of 0.1mg/L is measured by adopting a standard curve method and can reach within +/-15.0 percent, and the precision is 4.623 percent.
The analyzer can obviously reduce the cost, optimize the testing time, greatly shorten the period, shorten the single measuring time by 30min, and detect the concentration of the residual chlorine in the water sample to be lower than 0.1 mg/L.
To sum up, the utility model provides an aquatic residual chlorine on-line analyzer, include: the device comprises a cabinet body and a rotatable cabinet door arranged on the cabinet body, wherein a hanging plate is arranged in the cabinet body, and a peristaltic pump, a metering pipe, a multi-way valve, a first high-pressure valve, a reaction tank and a second high-pressure valve which are communicated through a plurality of pipelines are respectively arranged on the hanging plate; a reagent bin for storing reagents and standard liquid is arranged at the bottom of the cabinet body, a supporting cabinet is arranged below the cabinet body, and the hanging plate is arranged above the supporting cabinet; one interface of the multi-way valve is communicated with the reagent bin, one interface of the multi-way valve is communicated with the metering pipe, the metering pipe is communicated with the peristaltic pump, one interface of the multi-way valve is communicated with the first high-pressure valve, the first high-pressure valve is communicated with the reaction tank, the reaction tank is communicated with the second high-pressure valve, the second high-pressure valve is communicated with the air bottle, in the process of the analyzer, an operator is in zero contact with a water sample to be detected, bacteria, viruses and the like are prevented from being spread through contact, the reagent consumption is small, the reagent is non-toxic, and the secondary pollution is less.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (10)
1. An on-line analyzer for residual chlorine in water comprises a cabinet body and a rotatable cabinet door arranged on the cabinet body, and is characterized in that a hanging plate is arranged in the cabinet body, and a peristaltic pump, a metering pipe, a multi-way valve, a first high-pressure valve, a reaction tank and a second high-pressure valve which are communicated through a plurality of pipelines are respectively arranged on the hanging plate;
a reagent bin for storing reagents and standard liquid is arranged at the bottom of the cabinet body, a supporting cabinet is arranged below the cabinet body, and the hanging plate is arranged above the supporting cabinet;
one interface of the multi-way valve is communicated with the reagent bin, one interface of the multi-way valve is communicated with the metering pipe, the metering pipe is communicated with the peristaltic pump, one interface of the multi-way valve is communicated with the first high-pressure valve, the first high-pressure valve is communicated with the reaction tank, the reaction tank is communicated with the second high-pressure valve, and the second high-pressure valve is communicated with the air bottle.
2. The on-line analyzer for residual chlorine in water as claimed in claim 1, wherein a water sample barrel, a blank water barrel, a measuring standard barrel, a zero standard barrel, a reagent barrel and a waste liquid barrel are arranged in the reagent bin.
3. The on-line analyzer for residual chlorine in water as claimed in claim 2, wherein said multi-way valve comprises: the system comprises a water sample interface, a measuring standard interface, a zero standard interface, a reagent interface, a zero point checking interface, a span checking interface, a public interface, a sample introduction interface and a waste liquid interface;
the water sample interface is communicated with the water sample barrel, the measuring scale interface is communicated with the measuring scale barrel, the zero scale interface is communicated with the zero scale barrel, the reagent interface is communicated with the reagent barrel, the common interface is communicated with the reaction tank, and the waste liquid interface is communicated with the waste liquid barrel;
the public interface is communicated with the reaction tank, and the sample introduction interface is communicated with the metering pipe.
4. The on-line analyzer for residual chlorine in water as claimed in claim 1, wherein a liquid crystal display screen for personnel to operate is arranged on the cabinet door.
5. The on-line analyzer for residual chlorine in water as claimed in claim 1, wherein the peristaltic pump is arranged on the left side of the upper portion of the hanging plate, the metering tube is arranged under the peristaltic pump, the reaction tank is arranged on the middle side of the upper portion of the hanging plate, the multi-way valve is arranged under the reaction tank, and the first high-pressure valve and the second high-pressure valve are arranged on the right side of the hanging plate.
6. The on-line analyzer for residual chlorine in water as claimed in claim 1, wherein a main control board is arranged at the rear side of the hanging board.
7. The on-line analyzer for residual chlorine in water as claimed in claim 1, wherein said metering tube is mounted on the hanging plate by a fixing plate.
8. The on-line analyzer for residual chlorine in water as claimed in claim 2, wherein a liquid outlet is arranged at the bottom of the reaction tank, the liquid outlet is communicated with a peristaltic pump through a liquid conveying pipeline, and liquid in the reaction tank is discharged to a waste liquid barrel through the peristaltic pump.
9. The on-line analyzer for residual chlorine in water as claimed in claim 1, wherein the rear part of the cabinet body is provided with an on-off switch.
10. The on-line analyzer for residual chlorine in water as claimed in claim 1, wherein an exhaust fan is provided at a side of the cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541624.1U CN212808039U (en) | 2020-07-29 | 2020-07-29 | On-line analyzer for residual chlorine in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021541624.1U CN212808039U (en) | 2020-07-29 | 2020-07-29 | On-line analyzer for residual chlorine in water |
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| Publication Number | Publication Date |
|---|---|
| CN212808039U true CN212808039U (en) | 2021-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021541624.1U Active CN212808039U (en) | 2020-07-29 | 2020-07-29 | On-line analyzer for residual chlorine in water |
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| Country | Link |
|---|---|
| CN (1) | CN212808039U (en) |
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- 2020-07-29 CN CN202021541624.1U patent/CN212808039U/en active Active
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