CN115326734A - Water quality multi-parameter online monitor - Google Patents
Water quality multi-parameter online monitor Download PDFInfo
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- CN115326734A CN115326734A CN202211236573.5A CN202211236573A CN115326734A CN 115326734 A CN115326734 A CN 115326734A CN 202211236573 A CN202211236573 A CN 202211236573A CN 115326734 A CN115326734 A CN 115326734A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims abstract description 34
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 32
- 230000029087 digestion Effects 0.000 claims abstract description 27
- 238000005070 sampling Methods 0.000 claims abstract description 26
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 128
- 238000004140 cleaning Methods 0.000 claims description 16
- 239000012153 distilled water Substances 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 14
- 239000002699 waste material Substances 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 abstract description 22
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000002798 spectrophotometry method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- 210000002414 leg Anatomy 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/03—Cuvette constructions
- G01N21/031—Multipass arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Spectroscopy & Molecular Physics (AREA)
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- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
The invention relates to a multi-parameter online water quality monitor, belonging to the technical field of water quality monitoring; the sampling control plate assembly comprises a quantifying assembly, a multi-way selection valve, an optical path extension digestion device and a peristaltic pump, a common port of the multi-way selection valve is sequentially communicated with the quantifying assembly and the peristaltic pump, one communicating port of the multi-way selection valve is connected with a sampler in the water sample processing system, one communicating port is connected with the optical path extension digestion device, and a plurality of communicating ports are respectively and correspondingly connected with a plurality of reagent bottles; the optical path extension digestion device comprises a fixed frame, a heating pipe is arranged in the fixed frame, adjusting plates are arranged on two sides of the heating pipe, a light source generator and a reflecting lens are arranged on the adjusting plate on one side, and a reflecting lens and a light source receiver are arranged on the adjusting plate on the other side; the light source emitted by the light source emitter improves the optical path through multiple groups of reflection, and further improves the detection precision.
Description
Technical Field
The invention belongs to the technical field of water quality monitoring, and particularly relates to a multi-parameter online water quality monitor.
Background
The water quality monitoring is a process for monitoring and measuring the types of pollutants in the water body, the concentrations and the variation trends of various pollutants and evaluating the water quality condition. The monitoring range is very wide, and comprises uncontaminated and contaminated natural water (rivers, lakes, seas and underground water) and various industrial drainage and the like. The main monitoring projects can be divided into two main categories: one is a comprehensive index reflecting the water quality conditions, such as temperature, chroma, turbidity, pH value, conductivity, suspended matters, dissolved oxygen, chemical oxygen demand, biochemical oxygen demand and the like; the other is some toxic substances, such as phenol, cyanogen, copper, arsenic, lead, nickel, chromium, cadmium, mercury, organic pesticides and the like. In order to objectively evaluate the water quality of rivers and oceans, it is sometimes necessary to measure the flow velocity and flow rate in addition to the above-mentioned monitoring items.
When the concentration indexes of elements such as copper, lead, nickel, chromium and the like in water quality are monitored, spectrophotometry is used for detecting the substances to be detected, and the spectrophotometry is a method for qualitatively and quantitatively analyzing the substances to be detected by measuring the absorbance of the light of the substances to be detected at specific wavelengths or within a certain wavelength range. The existing monitor for monitoring water quality by spectrophotometry can only select a specific wavelength range and a specific optical path to detect the concentration of a certain specific index in a detection liquid, can not detect various indexes simultaneously, and has low resolution when the spectrophotometry detects a low-concentration sample due to a certain range, so that the precision of the low-concentration sample is poor, and the detection limit is increased.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a water quality multi-parameter online monitor; the problems set forth in the above background art are solved.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A water quality multi-parameter online monitor comprises a cabinet, wherein a sampling control plate assembly and a controller are arranged in an upper space in the cabinet, a water sample processing system and reagent bottles are arranged in a lower space, the sampling control plate assembly comprises a quantifying assembly, a multi-way selector valve, an optical path extension digestion device and a peristaltic pump, a liquid inlet of the quantifying assembly is communicated with a common port of the multi-way selector valve through a pipeline, a liquid outlet of the quantifying assembly is connected with a liquid inlet of the peristaltic pump, a communicating port of the multi-way selector valve is connected with a sampler in the water sample processing system, a communicating port of the multi-way selector valve is connected with a liquid inlet of the optical path extension digestion device, and a plurality of communicating ports of the multi-way selector valve are correspondingly connected with the reagent bottles respectively; the optical path lengthening digestion device comprises a fixing frame, a heating pipe is arranged inside the fixing frame, adjusting plates are arranged on two sides of the heating pipe, a light source generator and a reflecting lens are arranged on the adjusting plate on one side, and a reflecting lens and a light source receiver are arranged on the adjusting plate on the other side.
Further, the water sample processing system includes the sample thief, be provided with feed liquor pipe and fluid-discharge tube on the sample thief, feed liquor pipe and fluid-discharge tube extend to the outside of rack and stretch into the river course, are provided with the feed liquor pump on the feed liquor pipe, are provided with the flowing back valve on the fluid-discharge tube.
Furthermore, a separation three-way valve is arranged on a pipeline between a public port of the multi-way selector valve and the quantitative component, the public port of the multi-way selector valve is connected with one valve port of the separation three-way valve, a second valve port of the separation three-way valve is connected with a cleaning liquid discharge pipeline, the other end of the cleaning liquid discharge pipeline extends into a cleaning liquid discharge barrel, the cleaning liquid discharge barrel is arranged in the lower space of the cabinet, and a third valve port of the separation three-way valve is connected with a liquid inlet of the quantitative component.
Furthermore, a sampling three-way valve is arranged on a pipeline between a communication port of the multi-way selector valve and the sampler, the communication port of the multi-way selector valve is connected with one valve port of the sampling three-way valve, a second valve port of the sampling three-way valve extends into the sampler through a sampling pipe, a third valve port of the sampling three-way valve is connected with a standard water sample barrel through a pipeline, and the standard water sample barrel is positioned in the lower space of the cabinet.
Furthermore, a communicating port of the multi-way selector valve is connected with a distilled water barrel through a distilled water pipeline, a communicating port of the multi-way selector valve is connected with a waste liquid barrel through a waste liquid discharge pipeline, and the distilled water barrel and the waste liquid barrel are both positioned in the lower space of the cabinet.
Furthermore, the upper end and the lower end of the fixing frame of the optical path extension digestion device are respectively provided with a liquid outlet pipe joint and a liquid inlet pipe joint, the lower inlet of the heating pipe is connected with the liquid inlet pipe joint, the upper outlet of the heating pipe is connected with the liquid outlet pipe joint, the outer side of the heating pipe is wound with a heating resistance wire, and the heating pipe is also provided with a temperature sensor.
Furthermore, the two side walls of the fixing frame are symmetrically provided with a square hole respectively, an adjusting plate is correspondingly arranged in each square hole, the two adjusting plates are respectively provided with a light source emitter, a second reflector and a fourth reflector in an up-and-down arrangement on the opposite end surface of one side, wherein the 8230, the first reflector and the third reflector are 8230, the 8230and the light source receiver are arranged on the end surface of one side, light beams emitted by the light source emitter pass through the heating tube and are sequentially reflected by the first reflector and the second reflector and then received by the light source receiver, and the light source passes through the heating tube after each reflection; each light source emitter is provided with a plurality of light sources which can emit light simultaneously and are received by the light source receiver after being reflected by the first reflector, the second reflector, the third reflector and the fourth reflector (8230; 8230).
Further, the peristaltic pump comprises a base, a rear seat and an upper cover; the front side surface of the rear seat is respectively provided with an upper cover and a base, the upper cover is connected with the rear seat through a screw, the base and the rear seat are mutually positioned through a pin shaft, and the base is fixedly connected with the upper cover; an upper arc groove which is communicated from front to back is formed in the middle of the lower end face of the upper cover, a lower arc groove which is communicated from front to back is formed in the middle of the upper end face of the base, and the upper arc groove and the lower arc groove jointly form a finished cylindrical through groove; the rear side of the rear seat is fixedly provided with a driving motor, and an output shaft of the driving motor penetrates through the rear seat and then extends into the cylindrical through groove between the upper cover and the base.
Furthermore, a roller carrier is arranged in the cylindrical through groove, and the roller carrier is integrally of a cylindrical structure, is sleeved outside an output shaft of the driving motor and is matched with the axis of the output shaft of the driving motor; the roller frame comprises a main body, a front cover and a rear cover, six rollers are uniformly arranged on the outer side cylindrical surface of the main body along the circumference, the rollers are rotatably connected to the main body through bearings, the front cover and the rear cover are fixed to the front side and the rear side of the main body through screws, so that the front side and the rear side of the main body are sealed, and the main body is fixedly connected with an output shaft of a driving motor through a radially arranged screw.
Furthermore, the left side and the right side of the upper cover are respectively provided with a liquid inlet joint and a liquid outlet joint which are communicated with the inside of the cylindrical through groove; a pump pipe is arranged in the upper arc groove of the upper cover, the pump pipe is extruded by the upper arc surface of the upper arc groove and the roller, and two ends of the pump pipe are respectively connected with the liquid inlet joints and the liquid outlet joints on two sides.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the water quality multi-parameter online monitor, the light sources with various wavelengths are arranged in the light source emitter, elements which cannot interfere with each other in the detection reagent are detected at the same time, concentration values of various indexes can be obtained at the same time, the adaptability is greatly improved, the cost for arranging other monitors is reduced, and the monitoring efficiency is improved.
(2) According to the water quality multi-parameter online monitor, the digestion device is provided with the optical path extending mechanism, so that a light source emitted by the light source emitter can be continuously reflected through the multiple groups of reflecting lenses, the optical path of the light source is improved, the light source receiver receives the light source with the extended optical path, the detection resolution is improved, and the detection precision of a low-concentration sample is improved.
(3) According to the water quality multi-parameter online monitor, six groups of rollers are arranged in the peristaltic pump, so that the power of the peristaltic pump during movement can be improved, and the overall operation efficiency of the monitor is improved.
Drawings
The invention is described in further detail below with reference to the accompanying drawings:
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of a sampling control plate assembly;
FIG. 3 is a perspective view of the optical path lengthening digestion apparatus;
fig. 4 is a front view of the optical path lengthening digestion apparatus;
fig. 5 is a side view of the optical path extension resolving device;
fig. 6 is a front sectional view of the optical path extension resolving device;
FIG. 7 is a front half-sectional view of the peristaltic pump;
FIG. 8 is a side half-sectional view of the peristaltic pump;
wherein, 1 is a cabinet, 2 is a cabinet door, 3 is a supporting foot, 4 is a moving wheel, 5 is a clapboard, 6 is a drawer, 7 is a display screen, 8 is a multi-way selector valve, 9 is a quantitative component, 10 is a peristaltic pump, 11 is an optical path extension digestion device, 12 is a separation three-way valve, 13 is a sampling three-way valve, 14 is a high-temperature high-pressure valve, 15 is a sampler, 16 is a liquid discharge pipe, 17 is a liquid discharge valve, 18 is a liquid inlet pipe, 19 is a liquid inlet pump, 20 is a standard water sample barrel, 21 is a cleaning liquid discharge barrel, 22 is a distilled water barrel, 23 is a waste liquid barrel, 24 is a reagent bottle, 25 is a fixed frame, 26 is a liquid inlet pipe joint, 27 is a liquid outlet pipe joint, 28 is a heating pipe, 29 is a heating resistance wire, 30 is a temperature sensor, 31 is an adjusting plate, 32 is a light source emitter, 33 is a first reflecting lens, 34 is a second reflecting lens, 35 is a light source receiver, 36 is a rear seat, 37 is an upper cover, 38 is a base, 39 is an upper arc groove, 40 is a lower arc groove, 41 is a driving motor, 42 is an output shaft, 43, a main body 44, a roller 44, a rear roller cover, a rear roller 45, a pull rod is a pull rod connector, a pull connector is a pull connector, a liquid inlet connector is a connector, and a liquid outlet connector is a connector 46.
Detailed Description
In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail with reference to the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1-8, the invention provides a water quality multi-parameter online monitor, which comprises a cabinet 1, wherein the cabinet 1 is of a square box structure, a partition plate 5 is arranged in the middle inside the cabinet 1, the inside of the cabinet 1 is divided into an upper space and a lower space through the partition plate 5, and the upper space and the lower space are respectively provided with an independent cabinet door 2.
Be provided with on four angles of lower terminal surface of rack 1 and remove wheel 4, be provided with four supporting legss 3 simultaneously on its terminal surface, remove rack 1 through removing wheel 4, remove the back that finishes, with supporting legss 3 spiral down with ground contact, just can support rack 1.
A reagent bottle 24 and a water sample treatment system are arranged in the lower space inside the cabinet 1, a sampling control panel assembly is arranged at the lower end in the upper space, an externally-pulled drawer 6 is arranged at the upper end in the upper space, a controller is arranged inside the drawer 6, and a display screen 7 is arranged on the externally-pulled surface of the drawer 6.
The water sample treatment system comprises a sampler 15, wherein a liquid inlet pipe 18 and a liquid outlet pipe 16 are arranged on the sampler 15, the liquid inlet pipe 18 and the liquid outlet pipe 16 extend to the outer side of the cabinet 1 and extend into a river channel, a liquid inlet pump 19 is arranged on the liquid inlet pipe 18, river water in the river channel is guided into the sampler 15 through the liquid inlet pump 19, and the river water is subjected to early treatment in the sampler 15. The drain pipe 16 is provided with a drain valve 17, and the water sample in the sampler 15 can be discharged into the river channel after the drain valve 17 is opened.
The sampling control panel component comprises a vertically arranged mounting plate, the mounting plate is fixed in the upper space in the cabinet 1, and a quantitative component 9, a multi-way selector valve 8, an optical path extension digestion device 11 and a peristaltic pump 10 are fixedly arranged on the mounting plate.
The multi-way selector valve 8 comprises a common port and a plurality of communicating ports, the common port is connected with one valve port of the separation three-way valve 12 through a pipeline, the second valve port of the separation three-way valve 12 is connected with a cleaning liquid discharge pipeline, the other end of the cleaning liquid discharge pipeline extends into a cleaning liquid discharge barrel 21, and the cleaning liquid discharge barrel 21 is arranged in the lower space of the cabinet 1.
The third valve port of the separation three-way valve 12 is connected with the liquid inlet of the quantitative component 9, the liquid outlet of the quantitative component 9 is connected with the liquid inlet of the peristaltic pump 10, and the liquid outlet of the peristaltic pump 10 is connected to the overflow liquid collecting barrel.
One communicating port of the multi-way selector valve 8 is connected with one valve port of the sampling three-way valve 13 through a pipeline, the second valve port of the sampling three-way valve 13 extends into the sampler 15 through a sampling pipe, the third valve port of the sampling three-way valve 13 is connected with the standard water sample barrel 20 through a pipeline, and the standard water sample barrel 20 is positioned in the lower space of the cabinet 1.
The plural communication ports of the multi-way selector valve 8 are connected to the inside of the reagent bottle 24 through reagent tubes, respectively.
A communicating port of the multi-way selector valve 8 is connected with a lower end liquid inlet of the optical path extension digestion device 11 through a pipeline, and an upper end liquid outlet of the optical path extension digestion device 11 is connected to an overflow liquid collecting barrel through a pipeline.
The front end and the rear end of the optical path extension digestion device 11 are both provided with a high-temperature high-pressure valve 14, the two high-temperature high-pressure valves 14 are used for providing a high-pressure environment for the optical path extension digestion device 11, and meanwhile, the high-temperature high-pressure valve 14 on the rear side simultaneously plays a role in pressure relief after the pressure exceeds the standard.
One communication port of the multi-way selector valve 8 is connected with a distilled water barrel 22 through a distilled water pipeline, and the distilled water barrel 22 is positioned in the lower space of the cabinet 1.
One communicating port of the multi-way selector valve 8 is connected with a waste liquid barrel 23 through a waste liquid discharge pipeline, and the waste liquid barrel 23 is positioned in the lower space of the cabinet 1.
The controller is respectively connected with a multi-way selector valve 8, a separation three-way valve 12, a sampling three-way valve 13, a quantitative component 9, a peristaltic pump 10, an optical path extension digestion device 11, a liquid inlet pump 19, a liquid discharge valve 17 and a display screen 7.
The optical path lengthening and digesting device 11 comprises a square fixing frame 25, and a liquid outlet pipe joint 27 and a liquid inlet pipe joint 26 are respectively arranged at the upper end and the lower end of the fixing frame 25. A heating pipe 28 is arranged in the fixing frame 25, the lower inlet of the heating pipe 28 is connected with a liquid inlet pipe joint 26, the upper outlet of the heating pipe 28 is connected with a liquid outlet pipe joint 27, the detection liquid is input into the heating pipe 28 through the liquid inlet pipe joint 26, and the detection liquid is output outwards through the liquid outlet pipe joint 27. A heating resistance wire 29 is wound around the outside of the heating pipe 28, the detection liquid inside the heating pipe 28 is heated by the heating resistance wire 29, and a temperature sensor 30 is further provided on the heating pipe 28, and the temperature of the detection liquid inside the heating pipe 28 is measured by the temperature sensor 30.
Two side walls of the fixing frame 25 are symmetrically provided with a square hole respectively, and two threaded holes are symmetrically arranged on two sides of each square hole. An adjusting plate 31 is correspondingly arranged in each square hole, a light source emitter 32, a second reflector 34, a first reflector 33 and a light source receiver 35 are respectively arranged on the two adjusting plates 31 in an up-and-down manner on the opposite side end surfaces, the light source emitter 32 and the second reflector 34 extend into the fixing frame 25 from the square hole on one side, the first reflector 33 and the light source receiver 35 extend into the fixing frame 25 from the square hole on the other side, wherein the light source emitter 32 and the first reflector 33 are horizontally arranged correspondingly, the second reflector 34 and the light source receiver 35 are horizontally arranged correspondingly, a light beam emitted by the light source emitter 32 passes through the heating pipe 28 and then sequentially passes through the first reflector 33 and the second reflector 34 to be received by the light source receiver 35 after being reflected, and the light source passes through the heating pipe 28 after being reflected for each time.
Specifically, a vertical slotted hole is formed in each of the left side and the right side of each adjusting plate 31, two bolts are inserted into each slotted hole, and the bolts penetrate through the slotted holes of the adjusting plates 31 and then are screwed with threaded holes in the side wall of the fixing frame 25, so that the adjusting plates 31 are fixed on the fixing frame 25. The height of the adjusting plate 31 can be adjusted by adjusting the position of the bolt in the oblong hole, so that the heights of the light source emitter 32, the second reflector 34, the first reflector 33 and the light source receiver 35 in the fixing frame 25 are adjusted, the light source emitter 32 and the first reflector 33 are horizontally arranged correspondingly, and the second reflector 34 and the light source receiver 35 are horizontally arranged correspondingly.
Specifically, each light source emitter 32 is provided with a plurality of light sources, which can emit light simultaneously, and all of which are received by the light source receiver 35 after being reflected by the first and second reflective mirrors 33, 34.
Specifically, two adjusting plates 31 may be provided with a plurality of sets of reflective lenses, that is, a light source emitter 32, a second reflective lens 34, and a fourth reflective lens are arranged on one adjusting plate 31, a first reflective lens 33, a third reflective lens, and a light source receiver 35 are arranged on the other adjusting plate 31, and the emitted light source is received by the light source receiver 35 after being reflected by the four reflective lenses.
The peristaltic pump 10 comprises a base 38, a rear seat 36, an upper cover 37, a driving motor 41, a roller frame, a liquid inlet joint 49, a liquid outlet joint 50 and a pump pipe 51.
The front side surface of the rear cover 45 is respectively provided with an upper cover 37 and a base 38, the upper cover 37 is connected with the rear seat 36 through a screw, and the base 38 and the rear seat 36 are mutually positioned through a pin shaft. Two vertical threaded holes are respectively formed in two sides of the lower end face of the upper cover 37, two pull rod through holes which are vertically communicated are respectively formed in two sides of the base 38, a cylindrical groove is formed in an opening at the lower end of each pull rod through hole, and the two pull rod through holes correspond to the two threaded holes one by one. The pull rod 47 is screwed with the threaded hole of the upper cover 37 after passing through the pull rod through hole from the lower end of the pull rod through hole upwards. A fixed column is fixedly arranged at the lower end of the pull rod 47, a spring 48 is sleeved on the pull rod 47 at the upper end of the fixed column, the spring 48 is located inside the cylindrical groove, the lower end of the spring 48 is in contact with the upper end face of the fixed column, the upper end of the spring 48 is in contact with the top face of the inside of the cylindrical groove, the upward trend of the base 38 is guaranteed through the spring 48, and therefore the upper cover 37 is connected with the base 38.
An upper arc groove 39 which is through from front to back is arranged in the middle of the lower end face of the upper cover 37, a lower arc groove 40 which is through from front to back is arranged in the middle of the upper end face of the base 38, and the upper arc groove 39 and the lower arc groove 40 jointly form a finished cylindrical through groove.
A driving motor 41 is fixedly arranged on the rear side of the rear seat 36, an output shaft 42 of the driving motor 41 penetrates through the rear seat 36 and then extends into the cylindrical through groove between the upper cover 37 and the base 38, and the axis of the output shaft 42 of the driving motor 41 is overlapped with the axis of the cylindrical through groove.
A roller carrier is arranged in the cylindrical through groove, and the roller carrier is integrally of a cylindrical structure, is sleeved outside the output shaft 42 of the driving motor 41 and is matched with the axis of the output shaft 42 of the driving motor 41. The roller frame comprises a main body 43, a front cover 44 and a rear cover 45, six rollers 46 are uniformly arranged on the outer cylindrical surface of the main body 43 along the circumference, the rollers 46 are rotatably connected to the main body 43 through bearings, and the front cover 44 and the rear cover 45 are fixed on the front side and the rear side of the main body 43 through screws, so that the front side and the rear side of the main body 43 are sealed. The main body 43 is fastened to the output shaft 42 of the driving motor 41 by a radially disposed screw, so that the main body 43 rotates synchronously with the driving motor 41, i.e. the roller frame rotates synchronously with the driving motor 41.
The left side and the right side of the upper cover 37 are respectively provided with a liquid inlet joint 49 and a liquid outlet joint 50, and the liquid inlet joint 49 and the liquid outlet joint 50 are communicated with the inside of the cylindrical through groove. A pump pipe 51 is arranged in the upper arc groove 39 of the upper cover 37, the pump pipe 51 is pressed by the upper arc surface of the upper arc groove 39 and the roller 46, and two ends of the pump pipe 51 are respectively connected with the liquid inlet joint 49 and the liquid outlet joint 50 on two sides.
The working principle of the peristaltic pump 10 is as follows:
when the driver corresponding to the peristaltic pump 10 controls the peristaltic pump 10 to rotate in the forward direction, the driving motor 41 rotates in the forward direction, the roller frame is controlled to rotate clockwise, the roller 46 rotates in the clockwise direction, so that the pump pipe 51 is extruded clockwise, a negative pressure is generated on the left side of the pump pipe 51, liquid is sucked from the liquid inlet joint 49 on the left side, and is led out from the liquid outlet joint 50 on the right side after being extruded by the roller 46, and the forward circulation of the peristaltic pump 10 to the liquid is completed.
When the driver controls the peristaltic pump 10 to rotate reversely, the driving motor 41 rotates reversely, the roller frame is controlled to rotate anticlockwise, the roller 46 rotates anticlockwise, the pump pipe 51 is extruded anticlockwise, negative pressure is generated on the right side of the pump pipe 51, liquid is sucked from the liquid outlet joint 50 on the right side, the liquid is led out from the liquid inlet joint 49 on the left side after being extruded by the roller 46, and accordingly reverse circulation of the peristaltic pump 10 to the liquid is completed.
The working principle of the invention is as follows:
before river water detection is carried out, the controller controls the common port of the multi-way selector valve 8 to be respectively communicated with the communication port corresponding to the reagent and the communication port corresponding to the water sample, and the pipeline connected with the standard water sample barrel 20 in the sampling three-way valve 13 is communicated. Then the peristaltic pump 10 is controlled to rotate in the positive direction, the peristaltic pump 10 generates power, and the reagent and the standard water sample are pumped into the quantitative component 9 to be mixed. When the quantitative component 9 detects that the amount of the mixed detection liquid entering the quantitative component 9 reaches a set value, the controller controls the common port of the multi-way selector valve 8 to be communicated with the corresponding communication port of the optical path extension digestion device 11, the peristaltic pump 10 starts to rotate reversely, the top beam pumps the detection liquid mixed in the quantitative component 9 into the optical path extension digestion device 11 through the multi-way selector valve 8, the mixed detection liquid carries out high-temperature reaction in the heating pipe 28, the mixed detection liquid is irradiated through the light source emitter 32, and the irradiated light source is received through the light source receiver 35 to detect the concentration value of a set parameter in the detection liquid.
And then the controller controls the common port of the multi-way selector valve 8 to be connected with a communication port corresponding to the optical path extension digestion device 11, and the peristaltic pump 10 rotates in the positive direction to pump the neutralization detection liquid in the optical path extension digestion device 11 back to the quantitative component 9. And then the common port of the multi-way selector valve 8 is controlled to be communicated with a corresponding communication port of the waste liquid barrel 23, the peristaltic pump 10 rotates reversely, and the detected detection liquid in the quantitative component 9 is pumped into the waste liquid barrel 23.
And then the controller controls a common port of the multi-way selector valve 8 to be communicated with a communication port corresponding to a distilled water barrel 22, firstly, the peristaltic pump 10 rotates forwards, distilled water is pumped into the quantitative component 9 to clean the quantitative component 9, then, the peristaltic pump 10 rotates backwards to pump the distilled water into the optical path lengthening digestion device 11 to clean the optical path lengthening digestion device, then, the peristaltic pump 10 rotates forwards, the distilled water is pumped into the quantitative component 9, finally, the separation three-way valve 12 is communicated with the cleaning liquid barrel, and the distilled water in the quantitative component 9 is pumped into the cleaning liquid barrel to complete the cleaning of the whole pipeline system.
And then, the river water can be detected, the detection flow of the river water is the same as that of the standard water sample, and the detection process is not repeated here, and a detected result controller can be displayed on the display screen 7 so as to conveniently know the water quality in time. After the river water is detected, the detection liquid is discharged into the waste liquid barrel 23, and the whole pipeline system is cleaned by distilled water.
After the river water parameter of the current period is detected, a liquid discharge valve 17 on the liquid discharge pipe 16 is opened, the river water detected in the sampler 15 is discharged back to the river channel, new river water is pumped in again through the liquid inlet pump 19, and the water sample detection of the next period is carried out, and the steps are repeated.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a quality of water multi-parameter on-line monitoring appearance which characterized in that: the sampling device comprises a cabinet (1), wherein a sampling control panel assembly and a controller are arranged in an upper space in the cabinet (1), a water sample processing system and reagent bottles (24) are arranged in a lower space, the sampling control panel assembly comprises a quantifying assembly (9), a multi-way selector valve (8), an optical path extension digestion device (11) and a peristaltic pump (10), a liquid inlet of the quantifying assembly (9) is communicated with a common port of the multi-way selector valve (8) through a pipeline, a liquid outlet of the quantifying assembly (9) is connected with a liquid inlet of the peristaltic pump (10), a communicating port of the multi-way selector valve (8) is connected with a sampler (15) in the water sample processing system, a communicating port of the multi-way selector valve (8) is connected with a liquid inlet of the optical path extension digestion device (11), and a plurality of communicating ports of the multi-way selector valve (8) are correspondingly connected with the reagent bottles (24) respectively; the optical path extension digestion device (11) comprises a fixing frame (25), a heating pipe (28) is arranged in the fixing frame (25), adjusting plates (31) are arranged on two sides of the heating pipe (28), a light source generator and a reflecting lens are arranged on the adjusting plate (31) on one side, and a reflecting lens and a light source receiver (35) are arranged on the adjusting plate (31) on the other side.
2. The water quality multi-parameter online monitor according to claim 1, characterized in that: the water sample treatment system comprises a sampler (15), wherein a liquid inlet pipe (18) and a liquid discharge pipe (16) are arranged on the sampler (15), the liquid inlet pipe (18) and the liquid discharge pipe (16) extend to the outer side of the cabinet (1) and extend into a river channel, a liquid inlet pump (19) is arranged on the liquid inlet pipe (18), and a liquid discharge valve (17) is arranged on the liquid discharge pipe (16).
3. The water quality multi-parameter online monitor according to claim 1, characterized in that: a separation three-way valve (12) is arranged on a pipeline between a public port of the multi-way selector valve (8) and the quantitative component (9), the public port of the multi-way selector valve (8) is connected with one valve port of the separation three-way valve (12), a second valve port of the separation three-way valve (12) is connected with a cleaning liquid discharge pipeline, the other end of the cleaning liquid discharge pipeline extends into a cleaning liquid discharge barrel (21), the cleaning liquid discharge barrel (21) is arranged in the lower space of the cabinet (1), and a third valve port of the separation three-way valve (12) is connected with a liquid inlet of the quantitative component (9).
4. The water quality multi-parameter online monitor according to claim 1, characterized in that: a sampling three-way valve (13) is arranged on a pipeline between a communication port of the multi-way selector valve (8) and the sampler (15), the communication port of the multi-way selector valve (8) is connected with one valve port of the sampling three-way valve (13), a second valve port of the sampling three-way valve (13) extends into the sampler (15) through a sampling pipe, a third valve port of the sampling three-way valve (13) is connected with a standard water sample barrel (20) through a pipeline, and the standard water sample barrel (20) is positioned in the lower space of the cabinet (1).
5. The water quality multi-parameter online monitor according to claim 1, characterized in that: one communicating port of the multi-way selector valve (8) is connected with a distilled water barrel (22) through a distilled water pipeline, one communicating port of the multi-way selector valve (8) is connected with a waste liquid barrel (23) through a waste liquid discharge pipeline, and the distilled water barrel (22) and the waste liquid barrel (23) are both positioned in the lower space of the cabinet (1).
6. The water quality multi-parameter online monitor according to claim 1, characterized in that: the upper end and the lower end of a fixing frame (25) of the optical path extension digestion device (11) are respectively provided with a liquid outlet pipe joint (27) and a liquid inlet pipe joint (26), the lower inlet of a heating pipe (28) is connected with the liquid inlet pipe joint (26), the upper outlet of the heating pipe (28) is connected with the liquid outlet pipe joint (27), the outer side of the heating pipe (28) is wound with a heating resistance wire (29), and a temperature sensor (30) is further arranged on the heating pipe (28).
7. The water quality multi-parameter online monitor according to claim 1, characterized in that: the light source fixing frame comprises a fixing frame (25), wherein two side walls of the fixing frame (25) are symmetrically provided with square holes respectively, each square hole is internally and correspondingly provided with an adjusting plate (31), the two adjusting plates (31) are respectively provided with a light source emitter (32), a second reflector (34) and a fourth reflector (8230), a first reflector (33) and a third reflector (8230), a light source receiver (35) in an up-and-down arrangement mode on the opposite side end surface, light beams emitted by the light source emitter (32) pass through a heating pipe (28), then are reflected by the first reflector (33) and the second reflector (34) in sequence and then are received by the light source receiver (35), and the light source passes through the heating pipe (28) after each reflection; each light source emitter (32) is provided with a plurality of light sources which can emit light simultaneously and are all received by the light source receiver (35) after being reflected by the first reflecting lens (33), the second reflecting lens (34), the third reflecting lens and the fourth reflecting lens (8230; 8230).
8. The water quality multi-parameter online monitor according to claim 1, characterized in that: the peristaltic pump (10) comprises a base (38), a rear seat (36) and an upper cover (37); an upper cover (37) and a base (38) are respectively arranged on the front side surface of the rear seat (36), the upper cover (37) is connected with the rear seat (36) through screws, the base (38) and the rear seat (36) are mutually positioned through a pin shaft, and the base (38) is fixedly connected with the upper cover (37); an upper arc groove (39) which is through from front to back is formed in the middle of the lower end face of the upper cover (37), a lower arc groove (40) which is through from front to back is formed in the middle of the upper end face of the base (38), and the upper arc groove (39) and the lower arc groove (40) jointly form a finished cylindrical through groove; a driving motor (41) is fixedly arranged on the rear side of the rear seat (36), and an output shaft (42) of the driving motor (41) penetrates through the rear seat (36) and then extends into the cylindrical through groove between the upper cover (37) and the base (38).
9. The water quality multi-parameter online monitor according to claim 8, characterized in that: a roller carrier is arranged in the cylindrical through groove, the roller carrier is integrally of a cylindrical structure, is sleeved outside an output shaft (42) of the driving motor (41), and is matched with the axis of the output shaft (42) of the driving motor (41); the roller frame comprises a main body (43), a front cover (44) and a rear cover (45), six rollers (46) are uniformly arranged on the outer side cylindrical surface of the main body (43) along the circumference, the rollers (46) are rotatably connected to the main body (43) through bearings, the front cover (44) and the rear cover (45) are fixed to the front side and the rear side of the main body (43) through screws, so that the front side and the rear side of the main body (43) are closed, and the main body (43) is fixedly connected with an output shaft (42) of a driving motor (41) through a screw arranged in the radial direction.
10. The water quality multi-parameter online monitor according to claim 9, characterized in that: a liquid inlet joint (49) and a liquid outlet joint (50) are respectively arranged at the left side and the right side of the upper cover (37), and the liquid inlet joint (49) and the liquid outlet joint (50) are communicated with the inside of the cylindrical through groove; a pump pipe (51) is arranged in an upper arc groove (39) of the upper cover (37), the pump pipe (51) is extruded by an upper arc surface of the upper arc groove (39) and the roller (46), and two ends of the pump pipe (51) are respectively connected with a liquid inlet joint (49) and a liquid outlet joint (50) on two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202211236573.5A CN115326734A (en) | 2022-10-10 | 2022-10-10 | Water quality multi-parameter online monitor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211236573.5A CN115326734A (en) | 2022-10-10 | 2022-10-10 | Water quality multi-parameter online monitor |
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| CN115326734A true CN115326734A (en) | 2022-11-11 |
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| CN202211236573.5A Pending CN115326734A (en) | 2022-10-10 | 2022-10-10 | Water quality multi-parameter online monitor |
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| CN115931451A (en) * | 2023-03-10 | 2023-04-07 | 中绿环保科技股份有限公司 | Sampling analysis unit suitable for surface water monitoring |
| CN116609279A (en) * | 2023-05-29 | 2023-08-18 | 上海博取仪器有限公司 | Calibrating device of water quality testing equipment light source |
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Application publication date: 20221111 |