CN112268876A - Water quality detection unit and water quality detector - Google Patents
Water quality detection unit and water quality detector Download PDFInfo
- Publication number
- CN112268876A CN112268876A CN202011097505.6A CN202011097505A CN112268876A CN 112268876 A CN112268876 A CN 112268876A CN 202011097505 A CN202011097505 A CN 202011097505A CN 112268876 A CN112268876 A CN 112268876A
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- hole
- water quality
- light source
- transmission
- scattering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/51—Scattering, i.e. diffuse reflection within a body or fluid inside a container, e.g. in an ampoule
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
Abstract
The invention relates to a water quality detection unit and a water quality detector, which comprise a positioning block, a fixing plate and a shell, wherein a transmission through hole is formed between the front end surface and the rear end surface of the positioning block, scattering through holes are formed between the two side surfaces of the positioning block, the transmission through hole is vertically arranged with the scattering through holes and is communicated with the middle part, a scattering light source is arranged at one end of the scattering through hole of the positioning block, a transmission light source is arranged at one end of the transmission through hole of the positioning block, a control panel is arranged at the other end of the transmission through hole of the positioning block, the control panel comprises a signal receiver, and the signal receiver is arranged towards the transmission light source. The integrated level is high, is convenient for operating personnel to install and use.
Description
Technical Field
The invention relates to the field of water quality monitoring instruments, in particular to a water quality detection unit and a water quality detector.
Background
The water quality analyzer is a water quality monitoring device, can automatically monitor various parameters of water quality in real time, and can meet the requirements of various industries such as tap water supply, medicine, pharmacy, sewage treatment, municipal administration, electric power and energy, food processing, plastics, automobiles, semiconductors, tires, metallurgy, material treatment, mining, printing, petroleum and natural gas and the like. When residual chlorine parameters are tested, analysis is needed according to the absorbance of transmitted light, when turbidity is tested, the light intensity of 90-degree scattered light needs to be collected for analysis, and the detection of the two water quality indexes needs different detection modes. The existing water quality analyzer needs to respectively use different detection units to carry out residual chlorine and turbidity detection on a water sample, so that the water quality detection unit has large volume and high space occupancy rate, has single function when in use, and still needs to be further improved.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides a water quality detection unit and a water quality detector, which can simultaneously detect residual chlorine and turbidity of a sample.
The invention is realized by the following technical scheme:
the utility model provides a water quality testing unit, its characterized in that, includes the locating piece, is used for the fixed plate of installation locating piece and locates the outer casing of locating piece, it has the transmission through-hole to open between the preceding terminal surface of locating piece and the rear end face, it has the scattering through-hole to open between the locating piece both sides face, the transmission through-hole sets up with the scattering through-hole is perpendicular and communicates at the middle part, it has the colour comparison tube passageway to open between locating piece top surface and the bottom surface, the locating piece is located scattering through-hole one end and is equipped with the diffuse light source, and the locating piece is located transmission through-hole one end and is equipped with the transmission light source, and the locating piece.
According to the above technical solution, preferably, the control board further includes: the light source driving module is respectively electrically connected with the scattering light source and the transmission light source and is used for controlling the scattering light source and the transmission light source to be turned on and off; the signal receiving module is connected with the signal receiver and calculates a light intensity parameter through the first amplifying circuit or the second amplifying circuit; the first amplifying circuit is electrically connected with the signal receiving module and used for receiving and processing the transmitted light; the second amplifying circuit is electrically connected with the signal receiving module and used for receiving and processing scattered light; and the switching module is electrically connected with the light source driving module, the first amplifying circuit and the second amplifying circuit and is used for switching the receiving processing of the transmitted light and the scattered light.
According to the technical scheme, preferably, a seal head is arranged at one end of the scattering through hole, the seal head is installed on one side of the positioning block, a reflection inclined plane is arranged at the inner end of the seal head, a light absorption layer is arranged on the surface of the reflection inclined plane, a reflection through hole is formed in the position, close to the reflection inclined plane, of the positioning block, the reflection through hole is communicated with the scattering through hole, and a light absorption layer is arranged at the outer end of the reflection through.
According to the above technical scheme, preferably, the positioning block is further provided with a temperature rising assembly, and the temperature rising assembly comprises a PTC heating resistor and a temperature sensor.
According to the above technical scheme, preferably, the positioning block is provided with a heating resistor accommodating groove and a sensor accommodating hole, the PTC heating resistor is inserted in the accommodating groove, and the temperature sensor is inserted in the accommodating hole.
According to the above technical scheme, preferably, a mounting box is arranged below the fixing plate, and an electromagnetic coil is fixedly connected in the mounting box.
The patent still discloses a water quality testing appearance, including above-mentioned water quality testing unit, its characterized in that still includes reagent pump, sample pump, colour comparison tube, discharge valve and mixing arrangement, the colour comparison tube sets up in the colour comparison tube passageway of locating piece.
According to the above technical scheme, preferably, the lower end of the colorimetric tube penetrates through the mounting box and the electromagnetic coil, and a magnetic stirring assembly for stirring liquid in the colorimetric tube is arranged in the colorimetric tube.
According to the above technical solution, preferably, the magnetic stirring assembly includes a magnetic rotor and a stirrer, and the magnetic rotor is driven by an electromagnetic coil to rotate in the cuvette.
The invention has the beneficial effects that:
the invention has scientific and reasonable structural design and easy realization, simultaneously installs the transmission light source and the scattering light source in the detection unit, can respectively receive the transmission light and the 90-degree scattering light through the signal receiver on the control panel, realizes two functions of detecting the residual chlorine and the turbidity of a water sample by one set of device, has small volume, reduces the space occupancy rate of the water quality detection unit in the water quality detector, has high integration level, is convenient for operators to install and use, and has better application and popularization values.
Drawings
FIG. 1 is a schematic front view of a water quality detecting unit according to the present invention.
FIG. 2 is a schematic diagram showing the rear view structure of the water quality detecting unit according to the present invention.
FIG. 3 is a schematic front view of a portion of the magnetic stirring assembly of the present invention.
Fig. 4 is a schematic top view of the locating block portion of the present invention.
In the figure: 1. a colorimetric cylinder; 2. a fixing plate; 3. positioning blocks; 4. a PTC heating resistor accommodating groove; 5. mounting a box; 6. an electromagnetic coil; 7. a sensor placement hole; 8. a transmission through hole; 9. a scattering via; 10. a colorimetric tube channel; 11. a control panel; 12. a temperature sensor; 13. a PTC heating resistor; 14. a signal receiver; 15. a magnetic rotor; 16. a stirrer; 17. a reflective via; 18. a light absorbing layer; 19. and (5) sealing the head.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
As shown in the figure, the invention comprises a positioning block 3, a fixing plate 2 for mounting the positioning block 3 and a shell arranged outside the positioning block 3, wherein the peripheral edge position of the shell is clamped with the fixing plate 2, the positioning block 3 is provided with a front end surface and a rear end surface which are arranged in parallel, two side surfaces are vertically arranged at the left side and the right side between the front end surface and the rear end surface, the upper side and the lower side of the front end surface and the rear end surface are provided with a top surface and a bottom surface, a transmission through hole 8 is arranged between the front end surface and the rear end surface of the positioning block 3, a scattering through hole 9 is arranged between the two side surfaces of the positioning block 3, the transmission through hole 8 is vertically arranged with the scattering through hole 9 and is communicated with the middle part, a colorimetric tube channel 10 is arranged between the top surface and the bottom surface of the positioning block 3, one end of, the control board 11 comprises a signal receiver 14, the signal receiver 14 being arranged towards the transmissive light source. The invention has scientific and reasonable structural design and easy realization, simultaneously installs the transmission light source and the scattering light source in the detection unit, can respectively receive the transmission light and the 90-degree scattering light through the signal receiver 14 on the control panel 11, can simultaneously detect the residual chlorine and the turbidity of a water sample, has small volume, reduces the space occupancy rate of the water quality detection unit in the water quality detector, has high integration level, is convenient for operators to install and use, and has better application and popularization values.
According to the above embodiment, preferably, the control board 11 further includes: the light source driving module is respectively electrically connected with the scattering light source and the transmission light source and is used for controlling the scattering light source and the transmission light source to be turned on and off; the signal receiving module is connected with the signal receiver 14 and calculates a light intensity parameter through the first amplifying circuit or the second amplifying circuit; the first amplifying circuit is electrically connected with the signal receiving module and used for receiving and processing the transmitted light; the second amplifying circuit is electrically connected with the signal receiving module and used for receiving and processing scattered light; and the switching module is electrically connected with the light source driving module, the first amplifying circuit and the second amplifying circuit and is used for switching the receiving processing of the transmitted light and the scattered light. The operator can switch according to the detection demand and open scattered light source and transmission light source, can receive transmitted light and 90 scattered light respectively through a signal receiver 14 on the control panel 11 to through corresponding amplifier circuit, detect residual chlorine's content or turbidity in the water sample according to the light intensity.
According to the above embodiment, preferably, scattering through-hole 9 one end is equipped with head 19, head 19 is installed in locating piece 3 one side for scattering through-hole 9 one end is the scattered light source, and the other end is head 19, and 19 inner ends of head are equipped with the reflection inclined plane, reflection inclined plane surface is equipped with light-absorption layer 18, the position that locating piece 3 is close to the reflection inclined plane is opened there is reflection through-hole 17, reflection through-hole 17 is linked together with scattering through-hole 9, reflection through-hole 17 outer end is equipped with light-absorption layer 18, and wherein the light-absorption layer 18 of reflection through-hole 17 outer end is located transmission light source's drive circuit board, and transmission light source's drive circuit board installs in locating piece 3 front end face, and the position of relative reflection. Light beams emitted by the scattering light source are absorbed on the light absorption layer 18 of the reflection inclined plane and the light absorption layer 18 at the outer end of the reflection through hole 17 after penetrating through the colorimetric tube 1, and interference of stray light on scattered light detection is effectively avoided.
According to the above embodiment, preferably, the positioning block 3 is further provided with a temperature raising assembly, the temperature raising assembly includes a PTC heating resistor 13 and a temperature sensor 12, the positioning block 3 is provided with a sensor placing hole 7 and a heating resistor receiving groove 4, the PTC heating resistor 13 is inserted into the heating resistor receiving groove 4, the temperature sensor 12 is inserted into the sensor placing hole 7, and the temperature raising assembly is configured to heat the water sample and the liquid medicine in the colorimetric tube 1 through the PTC heating resistor 13.
According to the above embodiment, preferably, a mounting box 5 is arranged below the fixing plate 2, and an electromagnetic coil 6 is fixedly connected in the mounting box 5.
This patent still discloses a water quality testing appearance, including above-mentioned water quality testing unit, its characterized in that still includes reagent pump, sample pump, colour comparison tube 1, bleeder valve and electromagnetism mixing arrangement, colour comparison tube 1 runs through the setting of colour comparison tube passageway 10 of locating piece 3. The mixing device is arranged to fully mix the liquid medicine pumped into the colorimetric tube 1 by the reagent pump with the water sample pumped by the sampling pump.
According to the above embodiment, preferably, the lower end of the cuvette 1 penetrates through the mounting box 5 and the electromagnetic coil 6, a magnetic stirring assembly for stirring the liquid in the cuvette 1 is arranged in the cuvette 1, the magnetic stirring assembly includes a magnetic rotor 15 and a stirrer 16, and the magnetic rotor 15 is acted by the electromagnetic coil 6 to push the stirrer 16 to rotate in the cuvette 1. The bottom surface of the stirrer 16 is provided with a abdicating notch, the magnetic rotor 15 is positioned in the abdicating notch of the stirrer 16, the electromagnetic coil 6 drives the magnetic rotor 15 in the colorimetric tube 1 to rotate, the magnetic rotor 15 pushes the stirrer 16 to rotate in the colorimetric tube 1 in the abdicating notch, and the mixing of the liquid medicine and the water sample in the tube is accelerated.
The invention has scientific and reasonable structural design and easy realization, simultaneously installs the transmission light source and the scattering light source in the detection unit, can respectively receive the transmission light and the 90-degree scattering light through the signal receiver 14 on the control panel 11, can simultaneously detect the residual chlorine and the turbidity of a water sample, has small volume, reduces the space occupancy rate of the water quality detection unit in the water quality detector, has high integration level, is convenient for operators to install and use, and has better application and popularization values.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a water quality testing unit, its characterized in that, includes the locating piece, is used for the fixed plate of installation locating piece and locates the outer casing of locating piece, it has the transmission through-hole to open between the preceding terminal surface of locating piece and the rear end face, it has the scattering through-hole to open between the locating piece both sides face, the transmission through-hole sets up with the scattering through-hole is perpendicular and communicates at the middle part, it has the colour comparison tube passageway to open between locating piece top surface and the bottom surface, the locating piece is located scattering through-hole one end and is equipped with the diffuse light source, and the locating piece is located transmission through-hole one end and is equipped with the transmission light source, and the locating piece.
2. The water quality detecting unit according to claim 1, wherein the control board further comprises:
the light source driving module is respectively electrically connected with the scattering light source and the transmission light source and is used for controlling the scattering light source and the transmission light source to be turned on and off;
the signal receiving module is connected with the signal receiver and calculates a light intensity parameter through the first amplifying circuit or the second amplifying circuit;
the first amplifying circuit is electrically connected with the signal receiving module and used for receiving and processing the transmitted light;
the second amplifying circuit is electrically connected with the signal receiving module and used for receiving and processing scattered light;
and the switching module is electrically connected with the light source driving module, the first amplifying circuit and the second amplifying circuit and is used for switching the receiving processing of the transmitted light and the scattered light.
3. The water quality detecting unit according to claim 1, wherein a sealing head is disposed at one end of the scattering through hole, the sealing head is mounted at one side of the positioning block, a reflecting inclined plane is disposed at the inner end of the sealing head, a light absorbing layer is disposed on the surface of the reflecting inclined plane, a reflecting through hole is disposed at a position of the positioning block close to the reflecting inclined plane, the reflecting through hole is communicated with the transmission through hole, and a light absorbing layer is disposed at the outer end of the reflecting through hole.
4. The water quality detecting unit according to any one of claims 1 to 3, wherein a temperature raising component is further arranged on the positioning block, and the temperature raising component comprises a PTC heating resistor and a temperature sensor.
5. The water quality detecting unit according to claim 4, wherein the positioning block is provided with a heating resistor accommodating groove and a temperature sensor accommodating hole, the PTC heating resistor is inserted into the heating resistor accommodating groove, and the temperature sensor is inserted into the sensor accommodating hole.
6. A water quality detection unit according to claim 5, wherein a mounting box is arranged below the fixing plate, and an electromagnetic coil is fixedly connected in the mounting box.
7. A water quality detector comprises the water quality detection unit as claimed in claim 6, and is characterized by further comprising a reagent pump, a sampling pump, a colorimetric tube, a discharge valve and an electromagnetic mixing device, wherein the colorimetric tube penetrates through a colorimetric tube channel of a positioning block.
8. The water quality detector according to claim 7, wherein the lower end of the colorimetric tube penetrates through the mounting box and the electromagnetic coil, and a magnetic stirring assembly for stirring the liquid in the mixing tube is arranged in the colorimetric tube.
9. The water quality detector according to claim 8, wherein the magnetic stirring assembly comprises a magnetic rotor and a stirrer, and the magnetic rotor is driven by an electromagnetic coil to rotate the stirrer in the colorimetric tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097505.6A CN112268876A (en) | 2020-10-14 | 2020-10-14 | Water quality detection unit and water quality detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011097505.6A CN112268876A (en) | 2020-10-14 | 2020-10-14 | Water quality detection unit and water quality detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112268876A true CN112268876A (en) | 2021-01-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011097505.6A Pending CN112268876A (en) | 2020-10-14 | 2020-10-14 | Water quality detection unit and water quality detector |
Country Status (1)
| Country | Link |
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| CN (1) | CN112268876A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964674A (en) * | 2021-02-05 | 2021-06-15 | 中清盈创(深圳)科技有限公司 | Low-turbidity water quality online turbidity measurement algorithm and device adapting to long-term maintenance-free |
| CN113984663A (en) * | 2021-10-28 | 2022-01-28 | 中国人民解放军海军特色医学中心 | Optical detection device and working method thereof |
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| GB1013874A (en) * | 1963-07-03 | 1965-12-22 | Nat Res Dev | Improvements in apparatus for determining the turbidity of fluids |
| US20110013185A1 (en) * | 2008-03-19 | 2011-01-20 | Toru Obata | Gel particle measuring apparatus |
| CN102590152A (en) * | 2012-03-06 | 2012-07-18 | 深圳市汇松科技发展有限公司 | Specific protein rapid analysis instrument |
| CN103499539A (en) * | 2013-09-25 | 2014-01-08 | 中国农业大学 | Aquaculture turbidity detector and aquaculture turbidity detection method based on optical theory |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964674A (en) * | 2021-02-05 | 2021-06-15 | 中清盈创(深圳)科技有限公司 | Low-turbidity water quality online turbidity measurement algorithm and device adapting to long-term maintenance-free |
| CN113984663A (en) * | 2021-10-28 | 2022-01-28 | 中国人民解放军海军特色医学中心 | Optical detection device and working method thereof |
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