CN216525767U - Free chlorine on-line analysis detection device - Google Patents
Free chlorine on-line analysis detection device Download PDFInfo
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- CN216525767U CN216525767U CN202122960968.7U CN202122960968U CN216525767U CN 216525767 U CN216525767 U CN 216525767U CN 202122960968 U CN202122960968 U CN 202122960968U CN 216525767 U CN216525767 U CN 216525767U
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Abstract
The utility model discloses a free chlorine on-line analysis and detection device, which comprises a mainframe box, an analysis system, an electric control system, a feeding switching device, a pure water discharging switching device, a reagent dripping device, a feeding and discharging switching device and a feeding and filtering device, wherein the analysis system is positioned in the mainframe box, the pure water discharging switching device is provided with a pure water inlet, a discharging outlet and a reagent outlet, the analysis system comprises a free chlorine detector, the free chlorine detector comprises a reaction detection cup with two stirrers, an LED light source emitter and a light source receiver are arranged outside the reaction cup, the reagent dripping device is provided with a reagent dripping inlet and a reagent dripping outlet, the feeding and discharging device is provided with a feeding and discharging inlet and a feeding and discharging outlet, the feeding and filtering device is provided with a feeding and filtering inlet and a feeding and filtering outlet, the reagent dripping outlet, the feeding and discharging outlet and the two reaction detection cups are respectively connected with the feeding switching device through pipelines, the material inlet and outlet are connected with the reagent outlet of the pure water material discharge switching device through a pipeline.
Description
Technical Field
The utility model relates to a free chlorine on-line analysis and detection device, in particular to equipment for detecting the content of free chlorine in hydrogen chloride gas, and belongs to the technical field of chemical monitoring equipment.
Background
In industrial production, such as PVC production, hydrogen chloride is an essential raw material, and free chlorine exists in the hydrogen chloride, so that combustion and even explosion can occur, and therefore, the content of the free chlorine in the hydrogen chloride needs to be analyzed and detected. Because free chlorine testing in-process, reagent needs certain reaction time, therefore prior art's free chlorine check out test set check out test time is longer, can not realize continuous on-line measuring, and free chlorine needs many times to detect moreover and just can obtain accurate numerical value, therefore prior art's free chlorine detects the needs that can not satisfy continuous, high-efficient, accurate detection.
Disclosure of Invention
The utility model aims to provide a free chlorine on-line analysis and detection device capable of continuously detecting the content of free chlorine, which is used for solving the technical problems that the free chlorine detection equipment in the prior art cannot continuously detect free chlorine and has low detection efficiency.
The utility model adopts the following technical scheme: an online analysis and detection device for free chlorine comprises a mainframe box, an analysis system and an electric control system, wherein the analysis system and the electric control system are positioned in the mainframe box, the analysis system comprises a free chlorine detector, the free chlorine detector comprises a reaction detection cup with a stirrer, an LED light source emitter and a light source receiver which are positioned outside the reaction cup, the number of the reaction detection cups is two, the mainframe box is also internally provided with a feeding switching device, a pure water discharging switching device, a reagent dripping device, a feeding and discharging switching device and a feeding and filtering device, the pure water discharging switching device is provided with a pure water inlet, a discharging outlet and a reagent outlet, the reagent dripping device is provided with a reagent dripping inlet and a reagent dripping outlet, the feeding and discharging device is provided with a feeding and discharging inlet and a feeding and discharging outlet, the feeding and filtering device is provided with a feeding and filtering inlet and a feeding and filtering outlet, the reagent dripping outlet, the feeding and discharging outlet and the two reaction detection cups are respectively connected with the feeding switching device through pipelines, the material inlet and outlet are connected with the reagent outlet of the pure water material discharge switching device through a pipeline.
The feeding switching device is provided with a feeding inlet, a reagent outlet and two discharging outlets, the feeding inlet is communicated with a feeding filtering outlet, the two discharging outlets are communicated with the two reaction detection cups respectively, a three-way valve is arranged between the reagent dripping device and the feeding discharging device, and three interfaces of the three-way valve are communicated with the reagent dripping outlet, the feeding discharging outlet and the reagent outlet respectively.
The two reaction detection cups are provided with cup covers, and each cup cover is provided with a material inlet and outlet interface and an emptying interface.
And a flowmeter is arranged on the feeding filtering device.
A positive pressure protection device is arranged in the mainframe box.
And a display screen is arranged outside the mainframe box.
The utility model has the beneficial effects that: when the utility model is operated, the reaction detection cups are firstly cleaned, then pure water is introduced into the reaction detection cups to detect and record the initial value of the pure water, then a reagent and a gas to be detected are introduced into the reaction detection cups, the reagent in one reaction detection cup reacts, and simultaneously the other reaction cup carries out cleaning and pure water detection work, after the reaction detection of one reaction detection cup is finished, the other reaction detection cup carries out reaction and detection, the circulation is carried out, the whole equipment is continuously operated, so that the detection efficiency is improved, more times of detection can be finished in the same time, the detection result is more accurate, and a real-time accurate numerical value can be obtained.
The pipeline system of the utility model operates as follows: (1) cleaning: pure water enters from a pure water inlet of the pure water discharge switching device, the feed and discharge device operates to suck the pure water, the pure water is discharged into the reaction detection cup through the feed switching device, and the stirrer is opened to clean the reaction detection cup; the feeding and discharging device operates to suck liquid in the reaction detection cup, the pure water discharging switching device operates, and the liquid in the reaction detection cup is discharged from a discharging outlet of the pure water discharging switching device through the feeding and discharging device. (2) And (3) pure water detection: the pure water enters from a pure water inlet of the pure water discharge switching device, the pure water is sucked in by the operation of the feed and discharge device, the pure water is discharged to a reaction detection cup of the free chlorine detector through the feed and switching device, and the voltage value of the pure water in the reaction detection cup is recorded by the free chlorine detector and is used as a starting point value. (3) And (3) reagent reaction: the reagent dripping device operates, and the reagent is sucked into the reaction detection cup of the free chlorine detector through the feeding switching device; the feeding filtering device operates, the detected gas enters the reaction detection cup of the free chlorine detector to react through the feeding switching device after being filtered, and after the reaction is finished, the free chlorine detector records the voltage value of the free chlorine after the reaction and calculates the content of the free chlorine as a final point value. The pipeline system of the utility model is simple, convenient to switch and easy to control.
Drawings
FIG. 1 is a schematic view of the inside of an on-line analysis and detection apparatus for free chlorine according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of the control of the fluid system of fig. 1.
In the figure: 1-a main case, 2-a free chlorine detector, 21-a first reaction detection cup, 3-a feeding switching device, 4-a pure water discharging switching device, 5-a reagent dripping device, 6-a feeding and discharging device, 7-a feeding and filtering device, 8-a three-way valve, 9-a positive pressure protection device and 10-a display screen.
Detailed Description
The utility model is described in detail below with reference to the figures and specific embodiments.
As shown in fig. 1 to 2, the free chlorine on-line analysis and detection device according to an embodiment of the present invention includes a main cabinet 1, an analysis system and an electric control system located in the main cabinet 1, the analysis system includes a free chlorine detector 2, the free chlorine detector 2 includes two reaction detection cups 21 with a stirrer, an LED light source emitter and a light source receiver located outside the reaction cups, the reaction detection cups 21 include two reaction detection cups, each reaction detection cup includes a stirrer, each reaction detection cup includes an LED light source emitter and a light source receiver, the two reaction detection cups 21 include cup covers, and each cup cover includes a material inlet and outlet interface and an emptying interface. The LED light source emitter and the light source receiver in the free chlorine detector are the same as those in the prior art, so the structural schematic diagram of the free chlorine detector is omitted.
Still be equipped with feeding auto-change over device 3 in the mainframe box 1, pure water row material auto-change over device 4, reagent dropwise add device 5, advance row material auto-change over device 6 and feeding filter equipment 7, pure water row material auto-change over device 4 is equipped with the pure water import, arrange material export and reagent export, reagent dropwise add device 5 is provided with reagent dropwise add import and reagent dropwise add export, it is provided with into row material import and advances to arrange the material export to advance row material device 6, feeding filter equipment 7 is equipped with the feeding and filters import and feeding and filters the export, the feeding filters the export, the reagent dropwise add export, it exports and two reaction detection cups 21 and is connected with feeding auto-change over device 3 through the pipeline respectively to advance to arrange the material import and arrange the reagent export of material auto-change over device 4 through the tube coupling with pure water.
The feeding switching device 3 is provided with a feeding inlet, a reagent outlet, and two discharging outlets, the feeding inlet is communicated with the feeding filtering outlet, the two discharging outlets are respectively communicated with the two second reaction detection cups 21, and specifically, the two discharging outlets are respectively connected to the feeding and discharging inlets of the two reaction detection cups 21 through pipelines. A three-way valve 8 is arranged between the reagent dripping device 5 and the material feeding and discharging device 6, and three interfaces of the three-way valve 8 are respectively communicated with the reagent dripping outlet, the material feeding and discharging outlet and the reagent inlet and outlet. And a flowmeter is arranged on the feeding filtering device 7.
A positive pressure protection device 9 is arranged in the mainframe box 1, and a display screen 10 is arranged outside the mainframe box.
The operation flow of the online free chlorine analysis device in the embodiment is as follows:
1. pure water enters from a pure water inlet of the pure water discharge switching device, the feed and discharge device operates to suck the pure water, the pure water is discharged into a first reaction detection cup of the free chlorine detector through the feed switching device, and the stirrer is opened to clean the first reaction detection cup;
the feeding and discharging device operates to suck liquid in the first reaction detection cup, the pure water discharging switching device operates, and the liquid in the first reaction detection cup is discharged from a discharging outlet of the pure water discharging switching device through the feeding and discharging device.
2. The pure water enters from a pure water inlet of the pure water discharge switching device, the pure water is sucked in by the operation of the feed and discharge device, the pure water is discharged to a first reaction detection cup of the free chlorine detector through the feed and discharge switching device, and the voltage value of the pure water in the first reaction detection cup is recorded by the free chlorine detector and is used as a starting point value.
3. The reagent dripping device operates, and the reagent is sucked into a first reaction detection cup of the free chlorine detector through the feeding switching device; the feeding filter device operates, and the detected gas enters the first reaction detection cup of the free chlorine detector for reaction through the feeding switching device after being filtered.
4. When the first reaction detection cup reacts and detects, the second reaction detection cup is cleaned, and the method specifically comprises the following steps: the pure water enters from a pure water inlet of the pure water discharge switching device, the feed and discharge device operates to suck the pure water, the pure water is discharged into a second reaction detection cup of the free chlorine detector through the feed switching device, and the stirrer is opened to clean the second reaction detection cup;
the feeding and discharging device operates to suck liquid in the second reaction detection cup, the pure water discharging switching device operates, and the liquid in the second reaction detection cup is discharged from a discharging outlet of the pure water discharging switching device through the feeding and discharging device.
5. Pure water enters from a pure water inlet of the pure water discharge switching device, the feed and discharge device operates to suck the pure water, the pure water is discharged into a second reaction detection cup of the free chlorine detector through the feed and discharge switching device, and the voltage value of the pure water in the second reaction detection cup is recorded by the free chlorine detector and serves as a starting point value.
6. The reagent dripping device operates, and the reagent is sucked into a second reaction detection cup of the free chlorine detector through the feeding switching device; the feeding filter device operates, and the gas to be detected enters a second reaction detection cup of the free chlorine detector through the feeding switching device for reaction.
7. And after the reaction of the first reaction detection cup is finished, the free chlorine detector records the voltage value of the free chlorine after the reaction in the first reaction detection cup, the voltage value is used as a final point value, and the difference value between the final point value and a starting point value of the first reaction detection cup is substituted into a formula to calculate a result so as to obtain the content of the free chlorine. The detailed calculation principle and process of the free chlorine content are the same as those of the prior art.
8. After the reaction of the second reaction detection cup is finished, the free chlorine reaction detector of the second reaction detection cup detects and calculates the liquid in the second reaction detection cup, and the method is the same as the detection and calculation method of the first reaction detection cup;
when the second reaction detection cup reacts, the material feeding and discharging device operates to suck liquid in the first reaction detection cup, the pure water material discharging switching device operates, and the sucked liquid is discharged from the material discharging outlet of the pure water material discharging switching device to finish waste liquid discharge.
The operation process is in continuous circulating operation, one reaction detection cup reacts, and the other reaction detection cup is cleaned, so that the waiting time is shortened, the detection efficiency is improved, and in the same time, the detection frequency is twice that of the prior art, so that the detection result is more accurate, and a real-time accurate numerical value can be obtained.
The foregoing embodiments and description have been provided merely to illustrate the principles of the utility model and various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a free chlorine on-line analysis detection device, includes the mainframe box, is located analytic system and the electronic system of mainframe box, and analytic system includes free chlorine detector, and free chlorine detector detects the cup and is located LED light source transmitter, the light source receiver outside the reaction cup including the reaction that has the agitator, its characterized in that: the reaction detects cup has two, the mainframe box is still equipped with feeding auto-change over device, pure water row material auto-change over device, reagent dropwise add device, advance row material auto-change over device and feeding filter equipment, pure water row material auto-change over device is equipped with the pure water import, arrange material export and reagent export, reagent dropwise add device is provided with reagent dropwise add import and reagent dropwise add export, it is provided with into row material import and advances to arrange the material export to advance row material device, feeding filter equipment is equipped with the feeding and filters import and the feeding and filters the export, the feeding filters the export, the reagent dropwise add export, it is connected with feeding auto-change over device through the pipeline respectively to advance row material import and pure water row material auto-change over device's reagent export.
2. The free chlorine on-line analysis and detection device according to claim 1, characterized in that: the feeding switching device is provided with a feeding inlet, a reagent outlet and two discharging outlets, the feeding inlet is communicated with a feeding filtering outlet, the two discharging outlets are communicated with the two reaction detection cups respectively, a three-way valve is arranged between the reagent dripping device and the feeding discharging device, and three interfaces of the three-way valve are communicated with the reagent dripping outlet, the feeding discharging outlet and the reagent outlet respectively.
3. The free chlorine on-line analysis and detection device according to claim 1, characterized in that: the two reaction detection cups are provided with cup covers, and each cup cover is provided with a material inlet and outlet interface and an emptying interface.
4. The free chlorine on-line analysis and detection device according to claim 1, characterized in that: and a flowmeter is arranged on the feeding filtering device.
5. The free chlorine on-line analysis and detection device according to claim 1, characterized in that: a positive pressure protection device is arranged in the mainframe box.
6. The free chlorine on-line analysis and detection device according to claim 1, characterized in that: and a display screen is arranged outside the mainframe box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122960968.7U CN216525767U (en) | 2021-11-30 | 2021-11-30 | Free chlorine on-line analysis detection device |
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| CN202122960968.7U CN216525767U (en) | 2021-11-30 | 2021-11-30 | Free chlorine on-line analysis detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910604A (en) * | 2022-05-18 | 2022-08-16 | 江苏一脉科技有限公司 | Online analyzer and online analysis method for ammonia-salt ratio |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114910604A (en) * | 2022-05-18 | 2022-08-16 | 江苏一脉科技有限公司 | Online analyzer and online analysis method for ammonia-salt ratio |
| CN114910604B (en) * | 2022-05-18 | 2023-10-13 | 江苏一脉科技有限公司 | Online analysis instrument and online analysis method for ammonia-salt ratio |
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