CN219608910U - Water quality monitoring device based on quantitative concentration - Google Patents
Water quality monitoring device based on quantitative concentration Download PDFInfo
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- CN219608910U CN219608910U CN202320394342.0U CN202320394342U CN219608910U CN 219608910 U CN219608910 U CN 219608910U CN 202320394342 U CN202320394342 U CN 202320394342U CN 219608910 U CN219608910 U CN 219608910U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y02A20/20—Controlling water pollution; Waste water treatment
Abstract
The utility model discloses a water quality monitoring device based on quantitative concentration, which belongs to the technical field of water quality on-line monitoring and comprises the following components: the device comprises a heating and concentrating subsystem, a volume constant volume subsystem, a detection subsystem and an auxiliary subsystem; the heating and concentrating subsystem is communicated with the volume constant volume subsystem, the detection subsystem and the auxiliary subsystem and is used for quantitatively heating, concentrating and cooling sample water or calibration liquid; the volume constant volume subsystem is communicated with the detection subsystem and the auxiliary subsystem and is used for constant volume and transfer of concentrated and cooled sample water or calibration liquid, and the auxiliary subsystem is used for metering and transferring reagent or pure water; the detection subsystem is communicated with the volume constant volume subsystem and the auxiliary subsystem and is used for detecting concentration signals of the monitoring factors of the sample water or the calibration liquid after volume constant; the auxiliary subsystem is communicated with the volume constant volume subsystem, the detection subsystem and the heating concentration subsystem and is used for providing pure water and reagents required by the water quality monitoring device and discharging waste liquid or flow path cleaning liquid.
Description
Technical Field
The utility model belongs to the technical field of water quality on-line monitoring, and particularly relates to a water quality monitoring device based on quantitative concentration.
Background
With the high-speed development of the electric power industry in China, high-capacity and high-parameter units become industry development trend, and the control of the mass concentration of metal ions in a boiler water vapor system is an important control index, for example, the iron and copper content is a direct evaluation factor of the corrosion degree of iron and copper equipment in the boiler water vapor system in a thermal power generating unit. In order to prevent scaling caused by metal corrosion and operational safety hazard brought by corrosion to a boiler water vapor system, the contents of metal such as boiler feed water, boiler water iron, copper and the like cannot exceed a certain concentration. In the thermal generator set and steam power equipment water vapor quality (GB/T12145-2016), the standard value of the control index of the iron content of the superheated steam is less than or equal to 5 mug/L, the expected value is less than or equal to 3 mug/L, the standard value of the control index of the copper content is less than or equal to 2 mug/L, and the expected value is less than or equal to 1 mug/L.
At present, the metal measurement range of the graphite furnace atomic absorption spectrophotometer can reach 1-100 mug/L, the detection lower limit can reach the iron and copper detection requirements in thermal generator set and steam power equipment water vapor quality (GB/T12145-2016), but the cost of price, detection and maintenance of the graphite furnace atomic absorption spectrophotometer is high, the requirements on experimental operators are also higher, and the difficulty of on-line monitoring in an application site is higher. Most power plant laboratories adopt a simpler and low-cost chemical colorimetric method for detecting copper and iron, however, the lower limit of the detection of the chemical colorimetric method is far from the control index of copper and iron in a water vapor system of a power plant boiler. Method for analyzing boiler water and cooling water for iron determination
The lower limit of detection of iron in (GB/T14427-2017) is 10 mug/L, and the control requirement of iron in GB/T12145-2016 is far less than.
Disclosure of Invention
The utility model aims to provide a water quality monitoring device based on quantitative concentration, which realizes the online accurate measurement of trace metal ions by quantitatively concentrating sample water or calibration liquid, further reduces the detection lower limit and improves the online measurement accuracy and precision of the trace metal ions.
The utility model provides a water quality monitoring device based on quantitative concentration, which comprises: the device comprises a heating and concentrating subsystem, a volume constant volume subsystem, a detection subsystem and an auxiliary subsystem;
the heating and concentrating subsystem is communicated with the volume constant volume subsystem, the detection subsystem and the auxiliary subsystem and is used for quantitatively heating, concentrating and cooling sample water or calibration liquid; the heating and concentrating subsystem comprises: the device comprises a temperature sensor (12), an electric heating wire (13), an overflow cooling pipe (14), a standard liquid bottle (15), a constant volume pump (16), a standard liquid pump (17), an air pump (18), an air path valve (19), a standard liquid valve (20), a constant volume valve (21), a sample water valve (22), a quartz concentration tank (23), a constant volume pipe (24), a fan (25) and a sample valve (26);
the volume metering subsystem is communicated with the detection subsystem and the auxiliary subsystem, and is used for metering and transferring the volume of concentrated and cooled sample water or calibration liquid and metering and transferring the reagent or pure water in the auxiliary subsystem; the volumetric capacity subsystem includes: the high-precision injection pump (1), a three-way valve (2), a high liquid level sensor (3), a metering tube (4) and a low liquid level sensor (5);
the detection subsystem is communicated with the volume constant volume subsystem and the auxiliary subsystem and is used for detecting concentration signals of the sample water or the calibration liquid monitoring factors after constant volume; the detection subsystem includes: a liquid inlet valve (6) and a detection module (27); and
the auxiliary subsystem is communicated with the volume-fixing subsystem, the detection subsystem and the heating concentration subsystem and is used for providing pure water, reagents and discharged waste liquid or flow path cleaning liquid required by the water quality monitoring device; the auxiliary subsystem includes: a reagent bottle (7), a pure water bottle (8), a liquid discharge valve (9), a pure water valve (10) and a reagent valve (11).
Preferably, the sample water valve (22) is communicated with the sample water on site, and is used for controlling the amount of the sample water entering the quartz concentration tank (23) and controlling the sample water to flush the quartz concentration tank (23); excess sample water is discharged through the overflow cooling pipe (14);
the inlet and outlet of the standard liquid valve (20) are respectively connected with a standard liquid pump (17) and a quartz concentration tank (23), and the standard liquid pump (17) is connected with the standard liquid bottle (15) and is used for controlling the drawing of the calibration liquid and the discharge of the calibration liquid into the quartz concentration tank (23); excess of the calibration fluid is discharged through the overflow cooling pipe (14);
the inlet and outlet of the constant volume valve (21) is respectively connected with the constant volume pump (16) and the constant volume pipe (24), and redundant sample water or calibration liquid is extracted and discharged through continuous extraction of the constant volume pump (16);
the inlet and outlet of the air passage valve (19) are respectively connected with the air pump (18) and the quartz concentration tank (23), and the flowing gas provided by the air pump (18) brings away steam and then is discharged through the overflow cooling pipe (14).
Preferably, the quartz concentration tank (23) is made of quartz glass, bulges for fixing the electric heating wires (13) are uniformly distributed on the surface of the quartz concentration tank, and a section of quartz glass tube with one end closed is embedded in the quartz concentration tank.
Preferably, the electric heating wires (13) are uniformly wound on the periphery of the quartz concentration tank (23) and used for heating and concentrating the sample water or the calibration liquid after metering and volume fixing.
Preferably, the temperature sensor (12) is inserted into a section of quartz glass tube with one end closed, which is embedded in the quartz concentration tank (23); the fan (25) is positioned at one side of the quartz concentration tank (23) and used for cooling the heated and concentrated sample water or calibration solution.
Preferably, the constant volume pipe (24) is made of high temperature resistant and corrosion resistant materials, is inserted into the quartz concentration tank (23) for a certain height, and measures and volume-fixes the sample water or the calibration liquid based on the height.
Preferably, the detection module (27) is connected with an outlet of the liquid inlet valve (6) and is used for detecting concentration signals of the sample water or the calibration liquid monitoring factors.
Preferably, the inlets of the liquid discharge valve (9), the pure water valve (10) and the reagent valve (11) are respectively connected with the inlet of the liquid inlet valve (6) after being communicated;
the reagent bottle (7) is used for containing a reducing agent or an oxidizing agent or a catalyst which is added according to the requirement when the concentrated sample water or the calibration solution is heated; the reagent bottle (7) is connected with the reagent valve (11); the pure water bottle (8) is connected with the pure water valve (10); the drain valve (9) is empty.
Preferably, an inlet of the three-way valve (2) is connected with the high-precision injection pump (1), a first outlet of the three-way valve (2) is connected with the upper end of the metering tube (4), and a second outlet of the three-way valve (2) is empty;
the high-precision injection pump (1) is respectively positioned at an upper limit position and a lower limit position in the pumping and discharging process, and the second outlet of the three-way valve (2) is switched to empty for resetting;
the lower end of the metering tube (4) is respectively connected with the liquid inlet valve (6), the reagent valve (11), the pure water valve (10) and the liquid discharge valve (9) and is used for metering or buffering liquid;
the high liquid level sensor (3) and the low liquid level sensor (5) are respectively fixed at the upper end and the lower end of the metering tube (4) and are used for judging the liquid metering starting point and the constant volume end point.
Preferably, the inlet of the three-way valve (2) is normally open with the first outlet, and the inlet of the three-way valve (2) is normally closed with the second outlet.
The device provided by the utility model has the following beneficial technical effects:
(1) The on-line accurate measurement of trace metal ions is realized by quantitatively concentrating sample water or calibration liquid, the detection lower limit is further reduced, and the on-line measurement accuracy and precision of the trace metal ions are improved.
(2) The transparent quartz material is adopted, the monitoring process is visualized and controllable, and the automation level of the system is improved.
(3) The peristaltic pump is replaced by the high-precision injection pump, so that the quality of detection indexes of online measurement of long-time trace metal ions is improved.
Drawings
FIG. 1 is a schematic diagram of a water quality monitoring device based on quantitative concentration according to a preferred embodiment of the present utility model;
FIG. 2 is a flow chart of a quantitative concentration-based water quality monitoring method according to a preferred embodiment of the present utility model;
fig. 3 is a schematic structural diagram of an embodiment of an electronic device according to the present utility model.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
Example 1
As shown in fig. 1, a water quality monitoring device based on quantitative concentration in this embodiment includes: the device comprises a heating and concentrating subsystem, a volume constant volume subsystem, a detection subsystem and an auxiliary subsystem;
the heating and concentrating subsystem is communicated with the volume constant volume subsystem, the detection subsystem and the auxiliary subsystem and is used for quantitatively heating, concentrating and cooling sample water or calibration liquid;
the volume constant volume subsystem is communicated with the detection subsystem and the auxiliary subsystem, and is used for constant volume and transfer of concentrated and cooled sample water or calibration liquid and metering and transferring of reagents or pure water in the auxiliary subsystem;
the detection subsystem is communicated with the volume constant volume subsystem and the auxiliary subsystem and is used for detecting concentration signals of monitoring factors of sample water or calibration liquid after constant volume;
the auxiliary subsystem is communicated with the volume constant volume subsystem, the detection subsystem and the heating concentration subsystem and is used for providing pure water, reagents and discharged waste liquid or flow path cleaning liquid required by the water quality monitoring device.
As a preferred embodiment, the heated concentrating subsystem comprises: the device comprises a temperature sensor 12, an electric heating wire 13, an overflow cooling pipe 14, a standard solution bottle 15, a constant volume pump 16, a standard solution pump 17, an air pump 18, an air path valve 19, a standard solution valve 20, a constant volume valve 21, a sample water valve 22, a quartz concentration tank 23, a constant volume pipe 24, a fan 25 and a sample valve 26; wherein:
the sample water valve 22 is communicated with sample water on site and is used for controlling the amount of the sample water entering the quartz concentration tank 23 and controlling the sample water to flush the quartz concentration tank 23; the excess sample water is discharged through the overflow cooling pipe 14;
the inlet and outlet of the standard liquid valve 20 are respectively connected with the standard liquid pump 17 and the quartz concentration tank 23, and the standard liquid pump 17 is connected with the standard liquid bottle 15 for controlling the drawing of the calibration liquid and the discharge of the calibration liquid into the quartz concentration tank 23; excess calibration fluid is discharged through overflow cooling tube 14;
the inlet and outlet of the constant volume valve 21 are respectively connected with the constant volume pump 16 and the constant volume pipe 24, and redundant sample water or calibration liquid is extracted and discharged through continuous extraction of the constant volume pump 16;
the inlet and outlet of the air valve 19 are respectively connected with the air pump 18 and the quartz concentration tank 23, and the flowing gas provided by the air pump 18 takes the steam away and then is discharged through the overflow cooling pipe 14, so that the concentration speed is increased.
As a preferred embodiment, the quartz concentration tank 23 is made of quartz glass, is usually transparent, is convenient for observing and monitoring the process, is uniformly distributed with bulges for fixing the electric heating wires 13 on the surface, and is internally embedded with a section of quartz glass tube with one end closed; the electric heating wires 13 are uniformly wound around the periphery of the quartz concentration tank 23 and are used for heating and concentrating the sample water or the calibration liquid after metering and volume fixing.
As a preferred embodiment, the temperature sensor 12 is inserted into a section of quartz glass tube closed at one end, which is inserted into the quartz concentration tank 23.
In a preferred embodiment, a fan 25 is located at one side of the quartz concentration tank 23 for cooling the heated concentrated sample water or calibration solution.
As a preferred embodiment, the constant volume pipe 24 is made of a high temperature resistant and corrosion resistant material, is inserted into the quartz concentration tank 23 at a certain height, and is used for measuring and fixing the volume of sample water or calibration liquid.
As a preferred embodiment, the detection subsystem comprises: a liquid inlet valve 6 and a detection module 27; wherein:
the detection module 27 is connected with the outlet of the liquid inlet valve 6, and detects the concentration signal of the factor to be monitored of the sample water or the calibration liquid by adopting one or more methods of a spectrum detection principle, a titration principle or an electrochemical principle.
As a preferred embodiment, the auxiliary subsystem comprises: a reagent bottle 7, a pure water bottle 8, a liquid discharge valve 9, a pure water valve 10 and a reagent valve 11; wherein:
the inlets of the liquid discharge valve 9, the pure water valve 10 and the reagent valve 11 are respectively connected with the inlet of the liquid inlet valve 6 after being communicated;
the reagent bottle 7 contains a reducing agent or an oxidizing agent or a catalyst which is added when the sample water or the calibration solution is heated and concentrated according to the requirement; the reagent bottle 7 is connected with a reagent valve 11; the pure water bottle 8 is connected with a pure water valve 10; the drain valve 9 is empty.
As a preferred embodiment, the volumetric capacity subsystem comprises: a high-precision injection pump 1, a three-way valve 2, a high liquid level sensor 3, a metering tube 4 and a low liquid level sensor 5; wherein:
the inlet of the three-way valve 2 is connected with the high-precision injection pump 1, the first outlet of the three-way valve 2 is connected with the upper end of the metering tube 4, the second outlet of the three-way valve 2 is empty, the inlet of the three-way valve 2 is normally open with the first outlet, and the inlet of the three-way valve 2 is normally closed with the second outlet;
the high-precision injection pump 1 is respectively positioned at the upper limit position and the lower limit position in the pumping and discharging process, and the empty space is reset by switching the second outlet of the three-way valve 2;
wherein the resetting comprises: normally, the first outlet and the inlet of the three-way valve 2 are normally open, the second outlet and the inlet are normally closed, and during the injection pump pumping or discharging action, if extra air is required as a medium to push or pull air to realize the flow of the liquid in the flow path, the three-way valve 2 is required to communicate the inlet with the second outlet, and the air is sucked or discharged through the injection pump.
The lower end of the metering tube 4 is respectively connected with a liquid inlet valve 6, a reagent valve 11, a pure water valve 10 and a liquid discharge valve 9 for metering or buffering liquid;
the high liquid level sensor 3 and the low liquid level sensor 5 are respectively fixed at the upper end and the lower end of the metering tube 4 and are used for judging the liquid metering starting point and the constant volume end point.
Example two
As shown in fig. 2, the working method based on the water quality monitoring working principle of quantitative concentration of the device provided in the first embodiment includes:
s1, adding sample water or calibration liquid;
wherein, S11, add the sample water and include: opening the sample water valve 22 to enable the sample water to fill the quartz concentration tank 23, and overflowing the excessive sample water through the overflow cooling pipe 14;
s12, adding the calibration liquid comprises the following steps: opening the standard liquid valve 20 and the standard liquid pump 17 to enable the quartz concentration tank 23 to be filled with the calibration liquid, and overflowing the redundant calibration liquid through the overflow cooling pipe 14;
s2, fixing the volume of the sample water and the volume of the calibration solution;
the volume metering of the sample water comprises: closing the sample water valve 22, opening the constant volume valve 21 and the constant volume pump 16, and closing the constant volume valve 21 and the constant volume pump 16 after the volume of the sample water reaches the height of the constant volume pipe 24;
the volume metering of the volume of the calibration fluid comprises: closing the standard liquid valve 20 and the standard liquid pump 17, opening the constant volume valve 21 and the constant volume pump 16, and closing the constant volume valve 21 and the constant volume pump 16 after the volume of the calibration liquid reaches the height of the constant volume pipe 24;
s3, opening the reagent valve 11 and the high-precision injection pump 1, extracting the reagent in the reagent bottle 7, taking the low-level sensor 5 as a starting point of reagent volume measurement, opening the sample valve 26 after the high-precision injection pump 1 extracts the reagent with a fixed volume, injecting the reagent into the quartz concentration tank 23, closing the sample valve 26, opening the liquid discharge valve 9 and the high-precision injection pump 1, and closing the liquid discharge valve 9 after discharging the residual reagent;
s4, opening the air passage valve 19, the air pump 18 and the electric heating wire 13, evaporating sample water or calibration liquid under the action of the heating wire, enabling steam to flow through the overflow cooling pipe 14 to be discharged under the drive of circulating gas blown out by the air pump 18, closing the heating wire 13 after a certain time, and opening the fan 25;
s5, opening a sample valve 26, pumping all heated and concentrated sample water or calibration liquid into a metering tube 4 by the high-precision injection pump 1, closing the sample valve 26, opening a pure water valve 10, continuously pumping the high-precision injection pump 1, pumping pure water into the metering tube 4 until a liquid level signal is detected by a high-liquid level sensor 3, closing the pure water valve 10, opening a liquid inlet valve 6, and discharging the concentrated and well-sized sample water or calibration liquid to a detection module 27 by the high-precision injection pump 1 for concentration monitoring or calibration of the detection module 27;
s6, cleaning the quartz concentration tank 23 and the metering tube 4 after water quality monitoring is finished, and comprising the following steps:
opening a sample water valve 22, allowing sample water to enter a quartz concentration tank 23 until overflow from an overflow cooling pipe 14, closing the sample water valve 22, and opening a sample valve 26 and a liquid discharge valve 9 to finish cleaning the quartz concentration tank 23;
the pure water valve 10 is opened, the high-precision injection pump 1 pumps pure water in the pure water bottle 8 until the high-liquid level sensor 3 detects a pure water level signal, the pure water valve 10 is closed, the liquid discharge valve 9 is opened, the high-precision injection pump 1 discharges liquid, the metering tube 4 is cleaned, and the water quality monitoring device enters the next cycle.
Example III
A quantitative concentration method for water quality monitoring, comprising:
metering sample Water or calibration fluid according to example II, metering volume V b ；
Heating and concentrating sample water or calibration solution according to the second embodiment, wherein the volume after concentration is V c ；
Adding pure water to the concentrated sample water or calibration solution to fix the volume according to the second embodiment, wherein the volume after the volume fixing is V e Ensure V by controlling the heating concentration time c Less than V e ；
Calculate V b And V is equal to e The ratio between the two is taken as the concentration ratio and recorded as R v By increasing R v To lower the detection lower limit; in this example, the concentration ratio is 10 times that currently used.
Example IV
As shown in fig. 3, the fourth embodiment provides an electronic device, which includes a processor 302, and a memory 301 and a driver 303 connected to the processor 302, where the memory 301 stores a plurality of instructions, and the instructions may be loaded by the processor, and the driver 303 executes and drives a pump valve in a flow path, so that the processor can execute the method as in the second embodiment or the third embodiment.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. Water quality monitoring device based on ration is concentrated, characterized in that includes: the device comprises a heating and concentrating subsystem, a volume constant volume subsystem, a detection subsystem and an auxiliary subsystem;
the heating and concentrating subsystem is communicated with the volume constant volume subsystem, the detection subsystem and the auxiliary subsystem and is used for quantitatively heating, concentrating and cooling sample water or calibration liquid; the heating and concentrating subsystem comprises: the device comprises a temperature sensor (12), an electric heating wire (13), an overflow cooling pipe (14), a standard liquid bottle (15), a constant volume pump (16), a standard liquid pump (17), an air pump (18), an air path valve (19), a standard liquid valve (20), a constant volume valve (21), a sample water valve (22), a quartz concentration tank (23), a constant volume pipe (24), a fan (25) and a sample valve (26);
the volume metering subsystem is communicated with the detection subsystem and the auxiliary subsystem, and is used for metering and transferring the volume of concentrated and cooled sample water or calibration liquid and metering and transferring the reagent or pure water in the auxiliary subsystem; the volumetric capacity subsystem includes: the high-precision injection pump (1), a three-way valve (2), a high liquid level sensor (3), a metering tube (4) and a low liquid level sensor (5);
the detection subsystem is communicated with the volume constant volume subsystem and the auxiliary subsystem and is used for detecting concentration signals of the sample water or the calibration liquid monitoring factors after constant volume; the detection subsystem includes: a liquid inlet valve (6) and a detection module (27); and
the auxiliary subsystem is communicated with the volume-fixing subsystem, the detection subsystem and the heating concentration subsystem and is used for providing pure water, reagents and discharged waste liquid or flow path cleaning liquid required by the water quality monitoring device; the auxiliary subsystem includes: a reagent bottle (7), a pure water bottle (8), a liquid discharge valve (9), a pure water valve (10) and a reagent valve (11).
2. A water quality monitoring device based on quantitative concentration according to claim 1, wherein,
the sample water valve (22) is communicated with sample water on site and is used for controlling the amount of the sample water entering the quartz concentration tank (23) and controlling the sample water to flush the quartz concentration tank (23); excess sample water is discharged through the overflow cooling pipe (14);
the inlet and outlet of the standard liquid valve (20) are respectively connected with a standard liquid pump (17) and a quartz concentration tank (23), and the standard liquid pump (17) is connected with the standard liquid bottle (15) and is used for controlling the drawing of the calibration liquid and the discharge of the calibration liquid into the quartz concentration tank (23); excess of the calibration fluid is discharged through the overflow cooling pipe (14);
the inlet and outlet of the constant volume valve (21) is respectively connected with the constant volume pump (16) and the constant volume pipe (24), and redundant sample water or calibration liquid is extracted and discharged through continuous extraction of the constant volume pump (16);
the inlet and outlet of the air passage valve (19) are respectively connected with the air pump (18) and the quartz concentration tank (23), and the flowing gas provided by the air pump (18) brings away steam and then is discharged through the overflow cooling pipe (14).
3. The water quality monitoring device based on quantitative concentration according to claim 2, wherein the quartz concentration tank (23) is made of quartz glass, protrusions for fixing the electric heating wires (13) are uniformly distributed on the surface, and a section of quartz glass tube with one end closed is embedded inside the protrusions.
4. A water quality monitoring device based on quantitative concentration according to claim 3, wherein the electric heating wire (13) is uniformly wound around the periphery of the quartz concentration tank (23) and used for heating and concentrating the sample water or the calibration liquid after metering and volume fixing.
5. A water quality monitoring device based on quantitative concentration according to claim 4, characterized in that the temperature sensor (12) is inserted into a section of quartz glass tube with one end closed, which is embedded in the quartz concentration tank (23); the fan (25) is positioned at one side of the quartz concentration tank (23) and used for cooling the heated and concentrated sample water or calibration solution.
6. The quantitative concentration-based water quality monitoring device according to claim 5, wherein the constant volume pipe (24) is made of high temperature resistant and corrosion resistant materials, is inserted into the quartz concentration tank (23) for a certain height, and is used for metering and metering sample water or calibration liquid based on the height.
7. A quantitative concentration-based water quality monitoring device according to claim 6, wherein,
the detection module (27) is connected with an outlet of the liquid inlet valve (6) and is used for detecting concentration signals of monitoring factors of sample water or calibration liquid.
8. A water quality monitoring device based on quantitative concentration according to claim 7, wherein,
the inlets of the liquid discharge valve (9), the pure water valve (10) and the reagent valve (11) are respectively connected with the inlet of the liquid inlet valve (6) after being communicated;
the reagent bottle (7) is used for containing a reducing agent or an oxidizing agent or a catalyst which is added according to the requirement when the concentrated sample water or the calibration solution is heated; the reagent bottle (7) is connected with the reagent valve (11); the pure water bottle (8) is connected with the pure water valve (10); the drain valve (9) is empty.
9. A water quality monitoring device based on quantitative concentration according to claim 8, wherein,
the inlet of the three-way valve (2) is connected with the high-precision injection pump (1), the first outlet of the three-way valve (2) is connected with the upper end of the metering tube (4), and the second outlet of the three-way valve (2) is empty;
the high-precision injection pump (1) is respectively positioned at an upper limit position and a lower limit position in the pumping and discharging process, and the second outlet of the three-way valve (2) is switched to empty for resetting;
the lower end of the metering tube (4) is respectively connected with the liquid inlet valve (6), the reagent valve (11), the pure water valve (10) and the liquid discharge valve (9) and is used for metering or buffering liquid;
the high liquid level sensor (3) and the low liquid level sensor (5) are respectively fixed at the upper end and the lower end of the metering tube (4) and are used for judging the liquid metering starting point and the constant volume end point.
10. A water quality monitoring device based on quantitative concentration according to claim 9, characterized in that the inlet of the three-way valve (2) is normally open to the first outlet and the inlet of the three-way valve (2) is normally closed to the second outlet.
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| CN202320394342.0U CN219608910U (en) | 2023-03-06 | 2023-03-06 | Water quality monitoring device based on quantitative concentration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117147274A (en) * | 2023-10-31 | 2023-12-01 | 成都博瑞科传科技有限公司 | Multi-mode water sample concentration system and concentration method thereof |
| CN117147273A (en) * | 2023-10-31 | 2023-12-01 | 成都博瑞科传科技有限公司 | Background sample concentrating device, concentrating method thereof and calibrating method of detection equipment |
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2023
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117147274A (en) * | 2023-10-31 | 2023-12-01 | 成都博瑞科传科技有限公司 | Multi-mode water sample concentration system and concentration method thereof |
| CN117147273A (en) * | 2023-10-31 | 2023-12-01 | 成都博瑞科传科技有限公司 | Background sample concentrating device, concentrating method thereof and calibrating method of detection equipment |
| CN117147274B (en) * | 2023-10-31 | 2024-01-23 | 成都博瑞科传科技有限公司 | Multi-mode water sample concentration system and concentration method thereof |
| CN117147273B (en) * | 2023-10-31 | 2024-02-02 | 成都博瑞科传科技有限公司 | Background sample concentrating device, concentrating method thereof and calibrating method of detection equipment |
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