CN215574618U - Water hardness detector - Google Patents
Water hardness detector Download PDFInfo
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- CN215574618U CN215574618U CN202120207780.2U CN202120207780U CN215574618U CN 215574618 U CN215574618 U CN 215574618U CN 202120207780 U CN202120207780 U CN 202120207780U CN 215574618 U CN215574618 U CN 215574618U
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Abstract
The application discloses a water hardness detector, which comprises a detection chamber, a sampling pipeline, a reagent bottle group and a control device, wherein the sampling pipeline is used for sampling and transporting a water sample to be detected; the detection chamber comprises a cuvette, a light emitter, a light intensity sensor, an electromagnetic stirrer and a water outlet, the cuvette is connected with the sampling pipeline, the light emitter and the light intensity sensor are respectively arranged at two sides of the cuvette, at least part of the structure of the electromagnetic stirrer is arranged in the cuvette, and the water outlet is arranged on the outer wall of the detection chamber; the reagent bottle group is connected with the cuvette through a reagent pipeline; the control device is connected with the light emitter, the light intensity sensor and the electromagnetic stirrer and is used for controlling the start and stop of the light emitter, the light intensity sensor and the electromagnetic stirrer. The accuracy and the precision of the detection result can be improved, the detection requirement of higher water hardness is met, meanwhile, the repeatability of sampling detection is good, real-time sampling can be realized, and the detection is completed.
Description
Technical Field
The utility model belongs to the technical field of water quality detection, and particularly relates to a water hardness detector.
Background
Hardness is an important detection index of water quality, and whether the hardness is suitable for industrial production and daily life can be known through detection.
Water of higher hardness often has several undesirable effects, such as precipitation of soap, which in turn reduces the effectiveness of the detergent; making the textile rough and difficult to dye; the burning boiler is easy to block the pipeline, so that the boiler explosion accident is caused; difficult to drink, bitter and astringent, even affecting gastrointestinal function after drinking; feeding livestock can cause abortion in pregnant animals, etc. Therefore, the study of the method for measuring water hardness is not negligible.
Currently, the water hardness detection method on the market generally adopts reagent titration detection, which is usually manual sampling detection. However, manual sampling detection is easily affected by operator's manipulation, visual color difference and other factors, so that deviation occurs in final detection data.
SUMMERY OF THE UTILITY MODEL
To foretell not enough, the application provides a water hardness detector, can avoid artifical sampling to detect cost and deviation that brings, makes water hardness detect more convenient, swift.
The application is realized by the following technical scheme:
a water hardness tester, comprising: the device comprises a detection chamber, a sampling pipeline, a reagent bottle group and a control device; the sampling pipeline is used for sampling and transporting a water sample to be detected; the detection chamber comprises a cuvette, a light emitter, a light intensity sensor, an electromagnetic stirrer and a water outlet, the cuvette is connected with the sampling pipeline, the light emitter and the light intensity sensor are respectively arranged at two sides of the cuvette, at least part of the electromagnetic stirrer is arranged in the cuvette, and the water outlet is arranged on the outer wall of the detection chamber; the reagent bottle group is connected with the cuvette through a reagent pipeline; and the control device is connected with the light emitter, the light intensity sensor and the electromagnetic stirrer and is used for controlling the start and stop of the light emitter, the light intensity sensor and the electromagnetic stirrer.
Further, the sampling line comprises a filter; and the filter is used for filtering impurities in the water sample to be detected.
Further, the sampling pipeline also comprises a water inlet electromagnetic valve; the water inlet electromagnetic valve is connected with the control device and is arranged behind the filter, and the rear is determined based on the water inlet direction.
Further, the sampling pipeline comprises a pressure reducing valve and a pressure detection device; the pressure reducing valve the pressure detection device is connected with the control device, the pressure detection device is used for detecting the water pressure of the water sample to be detected, and the pressure reducing valve is used for controlling the water pressure of the water sample to be detected.
Further, the sampling pipeline comprises a pH value detection device, and the pH value detection device is connected with the control device and used for detecting the pH value of the water sample to be detected.
Further, the sampling pipeline comprises a temperature detection device, and is connected with the control device and used for detecting the temperature of the water sample to be detected.
Further, the sampling pipeline comprises a flow regulating device which is connected with the control device and is arranged in front of the water inlet electromagnetic valve, and the front is determined based on the water inlet direction; and the flow regulating device is used for controlling the flow of the water sample to be detected.
Further, the pressure reducing valve, the pressure detecting device, the pH value detecting device and the temperature detecting device are arranged between the filter and the flow regulating device.
And the device further comprises a precise metering pump set for controlling the detection reagent to enter the cuvette, and the precise metering pump set is connected with the control device and the reagent bottle set.
Furthermore, the reagent bottle group comprises a plurality of reagent bottles, the precision metering pump group comprises a plurality of precision metering pumps, the reagent bottles correspond to the precision metering pumps one by one, and the precision metering pumps are arranged on the reagent pipeline and between the reagent bottles and the cuvettes.
The application provides a water hardness detector can bring following beneficial effect:
the detector has reasonable structural design, can simulate manual sampling detection and reduce the interference of human factors and environmental factors in the traditional manual sampling detection process, thereby improving the accuracy and precision of detection results and meeting the detection requirement of higher water hardness. Meanwhile, the repeatability of sampling detection is good, real-time sampling can be realized, and detection is finished.
Drawings
FIG. 1 is a flow chart illustrating a process of a water hardness tester according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a water hardness detector according to an embodiment of the present disclosure;
in the figure, 1, a filter, 2, a pressure reducing valve, 3, a pressure detecting device, 4, a temperature detecting device, 5, a pH value detecting device, 6, a flow regulating device, 7, a water inlet electromagnetic valve, 8, an electromagnetic stirrer, 9, a detecting chamber, 10, a light emitter, 11, a light intensity sensor, 12, a cuvette, 13, a first reagent bottle, 14, a first precision metering pump, 15, a second reagent bottle, 16, a second precision metering pump, 17, a third precision metering pump, 18, a third reagent bottle, 19, a fourth precision metering pump, 20, a fourth reagent bottle, 21, a control device, 22, a sampling pipeline, 23, a water outlet, 24, a reagent bottle group, 25 and a precision metering pump group.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present application are only relative concepts or refer to the normal use state of the product, i.e., the traveling direction of the product, and should not be considered as limiting.
In addition, the dynamic terms such as "relative movement" mentioned in the embodiments of the present application include not only a positional change but also a movement in which a state changes without a relative change in position such as rotation or rolling.
Finally, it is noted that when an element is referred to as being "on" or "disposed" to another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
Embodiments of the present application are further described below with reference to the accompanying drawings:
as shown in fig. 1 and 2, the water hardness detector according to the present embodiment includes: a detection chamber 9, a sampling line 22, a reagent bottle group 24 and a control device 21.
The detection chamber 9 has therein a transparent cuvette 12, an electromagnetic stirrer 8, a light emitter 10 and a light intensity sensor 11. The cuvette 12 may be a cylinder, and the light emitted from the illuminator 10 may have a wavelength of 515 nm. Illuminator 10 and light intensity sensor 11 are located the both sides of cell 12 respectively, and are perpendicular with the outer wall of cell 12, and the distance between illuminator 10 and the light intensity sensor 11 is the biggest cross section diameter of cell 12, and the stirring rotor setting of electromagnetic stirrer 8 is in cell 12, and the rest sets up the outer wall at cell 12. The outer wall of the detection chamber 9 is also provided with a water outlet 23, the water outlet 23 and the sampling pipeline 22 are both connected into the cuvette 12 of the detection chamber 9, and the cuvette 12 is connected with the reagent bottle group through a plurality of reagent pipelines.
And the sampling pipeline 22 is used for sampling and transporting the water sample to be detected, and a water inlet of the sampling pipeline can extend into the water sample to be detected.
The reagent bottle group 24 is connected to the cuvette 12 through reagent lines, and includes a plurality of reagent bottles, each of which contains a different detection reagent, and the detection reagent in the reagent bottle can flow into the cuvette 12 through the corresponding reagent line. For example, as shown in fig. 1, the reagent bottle group 24 may include a first reagent bottle 13, a second reagent bottle 15, a third reagent bottle 18, and a fourth reagent bottle 20. In normal operation, the first reagent bottle 13, the second reagent bottle 15, and the third reagent bottle 18 may be used as a normal reagent bottle, the fourth reagent bottle 20 may be used as a spare reagent bottle, and the fourth reagent bottle 20 may be used instead of the normal reagent bottle when one of the normal reagent bottles is damaged.
The control device 21 can be a PLC controller, is connected to the light emitter 10, the light intensity sensor 11, and the electromagnetic stirrer 8, and is configured to control the start and stop of the above devices and receive data detected by the light intensity sensor 11.
In one embodiment, the sampling line 22 is provided with the filter 1 and the water inlet solenoid valve 7, and is connected with the control device 21. The filter 1 is mainly used for filtering impurities in a water sample to be detected and can be arranged at a position, close to a water inlet, of the sampling pipeline 22; the water inlet electromagnetic valve 7 is used as a switch for controlling a water sample to be detected to enter the cuvette 12 and can be arranged at the rear of the filter 1, and the front and the rear are determined based on the water inlet direction.
In one embodiment, the sampling line 22 is provided with a pressure reducing valve 2 and a pressure detecting device 3, both of which can be arranged between the filter 1 and the water inlet solenoid valve 7 and are connected with the control device 21. The pressure reducing valve 2 is used for controlling the water pressure of the water sample to be detected through the control device 21, and the pressure detection device 3 is used for detecting the water pressure of the water sample to be detected.
In one embodiment, a temperature detection device 4 is disposed on the sampling line 22, which can be disposed between the filter 1 and the water inlet solenoid valve 7, and is connected to the control device 21, and is mainly used for detecting the temperature of the water sample to be detected.
In one embodiment, a pH detection device 5 is disposed on the sampling line 22, which can be disposed between the filter 1 and the water inlet solenoid valve 7, and is connected to the control device 21, and is mainly used for detecting the pH value of the water sample to be detected.
In one embodiment, a flow regulating device 6 (e.g., a flow regulating valve) is disposed on the sampling line 22, which can be disposed in front of the water inlet solenoid valve 7 and connected to the control device 21, and is mainly used for controlling the flow of the water sample to be measured.
In one embodiment, along the water inlet direction of the sampling line 22, a filter 1, a pressure reducing valve 2, a pressure detecting device 3, a temperature detecting device 4, a pH value detecting device 5, a flow regulating device 6 and a water inlet solenoid valve 7 are sequentially arranged.
In one embodiment, the water hardness detector provided by the present application further includes a precision metering pump set 25, wherein a first precision metering pump 14, a second precision metering pump 16, a third precision metering pump 17, and a fourth precision metering pump 19 are respectively installed on each reagent pipeline corresponding to each reagent bottle of the reagent bottle set 24, the detection reagent in the corresponding reagent bottle is conveyed to the cuvette 12 through the precision metering pump set 25, and the flow rate of the detection reagent during the conveying process is controlled by the control device 21.
In one embodiment, the water hardness detector provided by the present application may be used for detecting water hardness by EDTA titration (EDTA, i.e., ethylenediaminetetraacetic acid) in practice. The water sample to be detected flows into the sampling pipeline 22, firstly impurities in the water sample are filtered through the filter 1, the water pressure of the water sample to be detected is adjusted by the control device 21 through controlling the pressure reducing valve 2, then the water pressure is measured through the pressure detection device 3, the temperature is measured through the temperature detection device 4, and the pH value is measured through the pH value detection device 5, so that the corresponding pressure value, temperature value and pH value are obtained. The control device 21 can also regulate the water flow by means of the flow regulating device 6. And finally, the water sample to be detected flows into a cuvette 12 of the detection chamber 9, after a set amount of water sample to be detected is added, the water inlet electromagnetic valve 7 is closed, the amount of the sample is kept, the corresponding first precise metering pump 14, the second precise metering pump 16 and the third precise metering pump 17 are started according to a required detection reagent, and the required reagent is added into the cuvette 12. And opening the electromagnetic stirrer 8 to enable the sample to fully react with the detection reagent, and simultaneously, enabling the light emitter 10 to emit light and the light intensity sensor 11 to detect the light intensity so as to detect the absorbance of the water sample to be detected before and after the reaction, thereby calculating and obtaining the water hardness data corresponding to the detection process. At this time, the water inlet solenoid valve 7 is opened to flush the colorimetric plate 12, and the waste water is discharged through the water outlet 23, and then the next round of the detection process is performed. And finally, obtaining the water hardness data of the water sample to be detected based on a plurality of rounds of detection processes.
The water hardness detector that this application embodiment provided is applicable to the detection of water hardness, can simulate artifical sampling detection method, has reduced the detection error that the interference of human factor brought, has also reduced the detection error that the interference of environmental factor brought simultaneously, for example, because of the detection error that temperature, pH value change arouse. The requirement of accurate detection of water hardness is met, the accuracy and precision of a detection result are ensured, in addition, the repeatability of sampling detection is good, real-time sampling can be realized, and the detection is completed.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (9)
1. A water hardness tester, comprising: the device comprises a detection chamber, a sampling pipeline, a reagent bottle group and a control device;
the sampling pipeline is used for sampling and transporting a water sample to be detected;
the detection chamber comprises a cuvette, a light emitter, a light intensity sensor, an electromagnetic stirrer and a water outlet, the cuvette is connected with the sampling pipeline, the light emitter and the light intensity sensor are respectively arranged at two sides of the cuvette, at least part of the electromagnetic stirrer is arranged in the cuvette, and the water outlet is arranged on the outer wall of the detection chamber;
the reagent bottle group is connected with the cuvette through a reagent pipeline;
and the control device is connected with the light emitter, the light intensity sensor and the electromagnetic stirrer and is used for controlling the start and stop of the light emitter, the light intensity sensor and the electromagnetic stirrer.
2. A water hardness detecting apparatus according to claim 1, wherein the sampling line includes a filter;
and the filter is used for filtering impurities in the water sample to be detected.
3. A water hardness detecting apparatus according to claim 2, wherein the sampling line further includes a water inlet solenoid valve;
the water inlet electromagnetic valve is connected with the control device and is arranged behind the filter, and the rear is determined based on the water inlet direction.
4. A water hardness detecting apparatus according to claim 3, wherein the sampling line includes a flow regulating device connected to the control device and in front of the water inlet solenoid valve, the front being determined based on the direction of water inlet;
and the flow regulating device is used for controlling the flow of the water sample to be detected.
5. A water hardness detector according to claim 4, wherein the sampling line includes a pressure relief valve, a pressure sensing device;
the pressure reducing valve and the pressure detection device are both connected with the control device, the pressure detection device is used for detecting the water pressure of the water sample to be detected, and the pressure reducing valve is used for controlling the water pressure of the water sample to be detected;
the pressure reducing valve and the pressure detection device are arranged between the filter and the flow regulating device.
6. A water hardness detecting apparatus according to claim 4, wherein the sampling line includes a pH detecting means connected to the control means for detecting the pH of the water sample to be tested;
the pH value detection device is arranged between the filter and the flow regulating device.
7. A water hardness detecting apparatus according to claim 4, wherein the sampling line includes a temperature detecting means connected to the control means for detecting the temperature of the sample of water to be tested;
the temperature detection device is arranged between the filter and the flow regulation device.
8. A water hardness detecting apparatus according to claim 1, further including a precision metering pump set for controlling the ingress of detection reagents into the cuvette, the precision metering pump set being connected to the control means and the set of reagent bottles.
9. A water hardness detecting instrument according to claim 8, wherein a plurality of reagent bottles are included in said reagent bottle group, and a plurality of precision metering pumps are included in said precision metering pump group, said reagent bottles corresponding one-to-one to said precision metering pumps, said precision metering pumps being disposed on said reagent lines between said reagent bottles and said cuvettes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207780.2U CN215574618U (en) | 2021-01-25 | 2021-01-25 | Water hardness detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120207780.2U CN215574618U (en) | 2021-01-25 | 2021-01-25 | Water hardness detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215574618U true CN215574618U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120207780.2U Active CN215574618U (en) | 2021-01-25 | 2021-01-25 | Water hardness detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215574618U (en) |
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2021
- 2021-01-25 CN CN202120207780.2U patent/CN215574618U/en active Active
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