CN116106300B - Colorimetric metering module and water quality online analyzer comprising same - Google Patents
Colorimetric metering module and water quality online analyzer comprising same Download PDFInfo
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- CN116106300B CN116106300B CN202310334550.6A CN202310334550A CN116106300B CN 116106300 B CN116106300 B CN 116106300B CN 202310334550 A CN202310334550 A CN 202310334550A CN 116106300 B CN116106300 B CN 116106300B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 27
- 239000007788 liquid Substances 0.000 claims abstract description 52
- 239000013307 optical fiber Substances 0.000 claims abstract description 11
- 238000004821 distillation Methods 0.000 claims description 87
- 238000003825 pressing Methods 0.000 claims description 26
- 238000009833 condensation Methods 0.000 claims description 22
- 230000005494 condensation Effects 0.000 claims description 22
- 238000010438 heat treatment Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 11
- 230000002572 peristaltic effect Effects 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 10
- 239000011324 bead Substances 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 235000014676 Phragmites communis Nutrition 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 239000003153 chemical reaction reagent Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- KSSNXJHPEFVKHY-UHFFFAOYSA-N phenol;hydrate Chemical compound O.OC1=CC=CC=C1 KSSNXJHPEFVKHY-UHFFFAOYSA-N 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention relates to a colorimetric metering module which comprises a colorimetric bracket, a colorimetric tube, a measuring lamp, an optical fiber collimating mirror, a receiving sensor and a light guide column, wherein the colorimetric bracket is arranged on the colorimetric bracket; the colorimetric bracket comprises a bracket main body and a bracket auxiliary body, wherein a first included angle is formed between the bracket main body and the bracket auxiliary body; the colorimetric tube comprises a colorimetric tube main body and a colorimetric tube auxiliary body, wherein the colorimetric tube main body is fixed on the support main body, and the colorimetric tube auxiliary body is fixed on the support auxiliary body, so that a second included angle is formed between the colorimetric tube main body and the colorimetric tube auxiliary body; the measuring lamp is arranged at the top end of the bracket main body, and the optical fiber collimating mirror is arranged between the measuring lamp and the colorimetric tube main body; the receiving sensor is arranged at the bottom end of the bracket main body, and the light guide column is arranged between the receiving sensor and the colorimetric tube main body; the top of the auxiliary body of the colorimetric tube is provided with a liquid inlet, the bottom of the main body of the colorimetric tube is provided with a liquid outlet, and a third included angle is formed between the liquid outlet and the main body of the colorimetric tube. The colorimetric metering module is relatively simple in structure and beneficial to compact arrangement of equipment.
Description
Technical Field
The invention relates to the field of environment monitoring devices, in particular to a colorimetric metering module and a water quality online analyzer comprising the same.
Background
The colorimetric metering module is an indispensable module in the online analyzer for the quality of the volatile phenol water, the colorimetric module and the metering module in the existing colorimetric metering module are separated, and the colorimetric process is carried out after the metering module finishes metering when in use.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a colorimetric metering module and a water quality online analyzer comprising the same, so as to solve the technical problems.
In order to achieve the above object, the present invention provides a technical solution as follows:
the colorimetric metering module comprises a colorimetric bracket, a colorimetric tube, a measuring lamp, an optical fiber collimating mirror, a receiving sensor and a light guide column; the colorimetric bracket comprises a bracket main body and a bracket auxiliary body, wherein the bracket main body is connected with the bracket auxiliary body, and a first included angle is formed between the bracket main body and the bracket auxiliary body; the colorimetric tube comprises a colorimetric tube main body and a colorimetric tube auxiliary body, wherein the colorimetric tube main body is connected with the colorimetric tube auxiliary body, the colorimetric tube main body is fixed on the support main body, and the colorimetric tube auxiliary body is fixed on the support auxiliary body, so that a second included angle is formed between the colorimetric tube main body and the colorimetric tube auxiliary body; the measuring lamp is arranged at the top end of the bracket main body, and the optical fiber collimating mirror is arranged between the measuring lamp and the colorimetric tube main body; the receiving sensor is arranged at the bottom end of the bracket main body, and the light guide column is arranged between the receiving sensor and the colorimetric tube main body; the top of the auxiliary body of the colorimetric tube is provided with a liquid inlet, the bottom of the main body of the colorimetric tube is provided with a liquid outlet, and a third included angle is formed between the liquid outlet and the main body of the colorimetric tube.
Preferably, in use, the cuvette body is arranged obliquely.
Preferably, the third included angle is greater than 116 ° and less than 148 °; the first included angle is larger than 116 degrees and smaller than 148 degrees;
the second included angle is larger than or equal to the first included angle; the inclination angle of the color comparison tube main body relative to the horizontal plane is larger than 26 degrees and smaller than 48 degrees.
Preferably, the third included angle is a right angle; the liquid inlet port is arranged perpendicular to the auxiliary body of the colorimetric tube; the first included angle is 45 degrees; the second included angle is equal to the first included angle; the inclination angle of the cuvette main body relative to the horizontal plane is 45 degrees.
Preferably, the top end of the colorimetric tube auxiliary body is provided with an overflow port; and a reference sensor is arranged on the side surface of the bracket main body corresponding to the measuring lamp.
The other technical scheme provided by the invention is as follows:
an online water quality analyzer comprises the colorimetric metering module.
Preferably, the colorimetric measurement device comprises an analyzer body, wherein the colorimetric measurement module is arranged in the analyzer body, a measurement module, a valve assembly and a distillation condensation module are further arranged in the analyzer body, and the measurement module, the valve assembly, the colorimetric measurement module and the distillation condensation module are sequentially connected; the distillation and condensation module comprises a distillation bracket (2001), a distillation pool (2002), a condensation pipe (2009) and a condensation bracket; the distillation pool is fixed in the distillation bracket, the condensing pipe is fixed in the condensing bracket, the condensing bracket is arranged on the distillation bracket, one end of the condensing pipe extends into the distillation pool, and the other end extends out of the condensing bracket; the bottom end of the distillation pool is provided with a liquid inlet hole, flanges extending inwards are arranged at the two sides of the top end of the liquid inlet hole, glass beads are arranged on the flanges, the diameter of each glass bead is larger than the distance between the two flanges, and the distance between the two flanges is smaller than the length of each flange; the distillation pool is characterized in that a heating wire is wound on the outer wall of the distillation pool, the top end of the heating wire is lower than the bottom end of the condensing tube, and the bottom end of the heating wire extends to the outer wall of the liquid inlet hole.
Preferably, a cooling fan is arranged on the condensation branch at a position corresponding to the condensation pipe.
Preferably, the top surface of the distillation bracket is provided with a fixing hole, an upper pressing block, a butterfly reed and a compression nut are sequentially arranged in the fixing hole from bottom to top, the compression nut is in threaded connection with the inner wall of the fixing hole, and the bottom end of the upper pressing block is propped against the top end of the distillation pool; the condensing pipe penetrates through the nut, the dish-shaped elastic sheet and the upper pressing block and is positioned in the distillation pool, and a sealing ring is arranged between the upper pressing block and the condensing pipe; the bottom end of the distillation pool is provided with a lower pressing block, the top end of the lower pressing block is propped against the distillation pool, and the other end of the lower pressing block is propped against the distillation bracket; the lower pressing block is provided with a through hole communicated with the liquid inlet; and a cooling fan is arranged on one side of the distillation pool on the support.
Preferably, the valve assembly comprises a three-way valve and a single-way valve, one end of the single-way valve is communicated with the liquid outlet port, the other single valve is communicated with one port of the three-way valve, the other port of the three-way valve is communicated with the through hole, the other port of the three-way valve is communicated with the inside of a metering module, the metering module is connected with an eight-connection valve, and the top of the metering module is connected with a peristaltic pump.
According to the colorimetric metering module, on the basis of the colorimetric module, the colorimetric tube is arranged in a special-shaped mode and is obliquely arranged, and then the receiving sensor is additionally arranged, so that functions of the colorimetric module and the metering module are integrated on one module, the structure is relatively simple, and compact arrangement of equipment is facilitated.
Drawings
FIG. 1 shows a schematic structural view of a colorimetric metering module in an embodiment;
FIG. 2 shows a state diagram of the colorimeter module with liquid not filled up the cuvette body;
FIG. 3 shows a state diagram of the colorimetric metering module with liquid filled up to the cuvette body;
FIG. 4 shows a structural layout of an on-line water quality analyzer;
FIG. 5 shows a schematic diagram of the structure of a distillation condensing module in the embodiment;
FIG. 6 is a schematic view showing a piping connection structure in the embodiment;
the reference numerals in the drawings:
analyzer body 1001, hanging plate 1005, distillation condensation module 1006, colorimetric metering module 1007, metering module 1008, peristaltic pump 1009, eight-way valve 1010, valve assembly 1011, reagent bottle assembly 1012, zero scale drum assembly 1013;
distillation support 2001, distillation cell 2002, lower press block 2003, upper press block 2004, butterfly reed 2005, press nut 2006, seal ring 2007, cooling fan 2008, condenser 2009, condensation support 2010, cooling fan 2011, glass beads 2013, heating wire 2014, temperature sensor 2015, protective cover 2016;
a flange 3001;
a holder main body 4001a, a holder sub body 4001b, a cuvette main body 4002a, a cuvette sub body 4002b, a measurement lamp 4003, a reference sensor 4004, an optical fiber collimator 4005, a receiving sensor 4006, and a light guide column 4007;
three-way valve 5001 and one-way valve 5002.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment 1 referring to fig. 1, the colorimetric measurement module in the present embodiment includes a colorimetric stand 4001, a colorimetric tube 4002, a measurement lamp 4003, an optical fiber collimator 4005, a receiving sensor 4006 and a light guide column 4007; the colorimetric bracket comprises a bracket main body 4001a and a bracket auxiliary body 4001b, wherein the bracket main body is connected with the bracket auxiliary body, and a first included angle is formed between the bracket main body and the bracket auxiliary body; the cuvette comprises a cuvette main body 4002a and a cuvette auxiliary body 4002b, the cuvette main body 4002a is connected with the cuvette auxiliary body, the cuvette main body is fixed on the bracket main body, and the cuvette auxiliary body is fixed on the bracket auxiliary body, so that a second included angle is formed between the cuvette main body and the cuvette auxiliary body; the measuring lamp is arranged at the top end of the bracket main body, and the optical fiber collimating mirror is arranged between the measuring lamp and the colorimetric tube main body; the receiving sensor is arranged at the bottom end of the bracket main body, and the light guide column is arranged between the receiving sensor and the colorimetric tube main body; the top of the auxiliary body of the colorimetric tube is provided with a liquid inlet, the bottom of the main body of the colorimetric tube is provided with a liquid outlet, and a third included angle is formed between the liquid outlet and the main body of the colorimetric tube. When the color comparison tube is used, the color comparison tube main body is obliquely arranged, wherein the third included angle is larger than 116 degrees and smaller than 148 degrees; the first included angle is larger than 116 degrees and smaller than 148 degrees; the second included angle is larger than or equal to the first included angle; the inclination angle of the colorimetric tube main body relative to the horizontal plane is larger than 26 degrees and smaller than 48 degrees; preferably, the third included angle is a right angle; the liquid inlet port is arranged perpendicular to the auxiliary body of the colorimetric tube; the first included angle is 45 degrees; the second included angle is equal to the first included angle; the inclination angle of the cuvette main body relative to the horizontal plane is 45 degrees. In actual manufacturing, the top end of the auxiliary body of the colorimetric tube is provided with an overflow port, and the main function of the overflow port is to be communicated with air so as to facilitate pressure relief and enable distillate to drop smoothly; then the other function is overflow, and more liquid is discharged when the fault occurs or part of liquid is discharged when the cleaning occurs; a reference sensor 4004 is mounted on the side of the holder body corresponding to the measuring lamp.
When the colorimetric metering module is used, the liquid inlet is used for receiving distillate, the measuring lamp 4003 is turned on in the process of receiving the distillate, light emitted by the measuring lamp is injected into the colorimetric tube through the optical fiber collimator 4005 and then is led into the receiving sensor 4006 through the light guide column 4007, at the beginning, most of light is lost due to reflection and refraction of the liquid level (see fig. 2), the receiving sensor 4006 receives a certain amount of light intensity, and when the distillate reaches the top end position of the main body of the colorimetric tube (see fig. 3), the light intensity value of the receiving sensor 4006 is suddenly changed, so that the metering work of the distillate is completed; at this time, the reference sensor 4004 performs real-time measurement, and the on-line analyzer software calculates the concentration of volatile phenol in the water sample by receiving the measurement data, and the colorimetric procedure is well known to those skilled in the art and will not be described herein. The colorimetric metering module is characterized in that the colorimetric tube is arranged to be special-shaped on the basis of the colorimetric module, and is obliquely arranged, and then the receiving sensor is additionally arranged, so that the functions of the colorimetric module and the metering module are integrated onto one module, the structure is relatively simple, and the compact arrangement of equipment is facilitated.
Embodiment 2 referring to fig. 4 to 6, an online water quality analyzer in this embodiment includes the colorimetric metering module described above. The following is a specific structure of the water quality online analyzer, which comprises an analyzer body 1001, wherein a metering module 1008, a valve assembly 1011, a colorimetric metering module 1007 and a distillation condensing module 1006 are arranged in the analyzer body, and the metering module, the valve assembly, the colorimetric metering module and the distillation condensing module are sequentially connected; wherein, the distillation condensing module comprises a distillation bracket 2001, a distillation pool 2002, a condensing pipe 2009 and a condensing bracket 2010; the distillation pool is fixed in the distillation bracket, the condensing pipe is fixed in the condensing bracket, the condensing bracket is arranged on the distillation bracket, one end of the condensing pipe extends into the distillation pool, and the other end extends out of the condensing bracket; the bottom end of the distillation pool is provided with a liquid inlet hole, the top end of the liquid inlet hole is provided with flanges 3001 extending inwards at two sides, the flanges are provided with glass beads 2013, the diameter of each glass bead is larger than the distance between the two flanges and smaller than the length of the flanges, so that liquid can enter and exit through the two sides of each glass bead when the liquid inlet is used for liquid inlet and liquid outlet, and the length of each flange can be the length of a channel between the two flanges; the distillation pool is characterized in that a heating wire 2014 is wound on the outer wall of the distillation pool, the top end of the heating wire is lower than the bottom end of the condensing tube, and the bottom end of the heating wire extends to the outer wall of the liquid inlet hole. The valve assembly comprises a three-way valve 5001 and a single-way valve 5002, wherein one end of the single-way valve is communicated with the liquid outlet port, the other end of the single-way valve is communicated with one port of the three-way valve, the other port of the three-way valve is communicated with the through hole, the other port of the three-way valve is communicated with the inside of a metering module, the metering module is connected with an eight-connection valve 1010, and the top of the metering module is connected with a peristaltic pump 1009. When the distillation condensation module is used, the heating wire is used for heating the distillation pool, after the bottom end of the distillation pool is heated, liquid passing through the liquid inlet is boiled, and bubbles can enter the distillation pool from two sides of the glass ball, so that the glass ball plugs the liquid inlet at the middle position, and the bubbles at the liquid inlet are prevented from rapidly entering the condensation pipe along the middle position of the distillation pool, so that the bubbles are effectively prevented from carrying liquid and being mixed with condensed liquid in the condensation pipe to influence the accuracy of subsequent measurement.
In an embodiment, a cooling fan 2011 is disposed at a position on the condensation bracket corresponding to the condensation tube, and when in use, the cooling fan blows air to the condensation tube to cool the condensation tube rapidly, so as to prevent people from touching the fan blade by mistake, and a protection cover 2016 can be fixed on the cooling fan.
The following is the installation mode of the distillation pool: the top surface of the distillation bracket is provided with a fixed hole, an upper pressing block 2004, a butterfly reed 2005 and a compression nut 2006 are sequentially arranged in the fixed hole from bottom to top, the compression nut is in threaded connection with the inner wall of the fixed hole, and the bottom end of the upper pressing block is propped against the top end of the distillation pool; the condensing pipe penetrates through the nut, the dish-shaped elastic sheet and the upper pressing block to be positioned in the distillation pool, and a sealing ring 2007 is arranged between the upper pressing block and the condensing pipe; a lower pressing block 2003 is arranged at the bottom end of the distillation pool, the top end of the lower pressing block is propped against the distillation pool, and the other end of the lower pressing block is propped against the distillation bracket; the lower pressing block is provided with a through hole communicated with the liquid inlet, wherein the upper pressing block and the lower pressing block are preferably processed by corrosion-resistant flexible materials (ptfe), and when the butterfly reed is in a compressed state, the distillation pool can be ensured to be in a sealed state; and a cooling fan 2008 can be arranged on one side of the distillation pool on the support, so that the distillation pool can be quickly cooled after distillation is finished, and the subsequent cleaning process of normal-temperature water to the distillation pool is facilitated. In practice, a temperature sensor 2015 may also be installed in the distillation cell to facilitate detection of the internal heated sample temperature.
The working flow of the online water quality analyzer is as follows:
(1) water sample inlet: the water sample valve on the eight-conjoined valve 1010 is opened, the peristaltic pump 1009 rotates forward, the water sample is metered by the metering module 1008, the three-way valve 5001 is opened, the peristaltic pump 1009 rotates reversely, the water sample is pushed into the distillation pool 2002, and the process is repeated until the water sample in the distillation pool is 10ml.
(2) Reagent 1: the reagent 1 valve in the eight-way valve 1010 is opened, the peristaltic pump 1009 is rotated forward, the reagent 1 (oxidant) is metered into a volume of 1ml by the metering module 1008, the three-way valve 5001 is opened, the peristaltic pump 1009 is rotated reversely, and the reagent 1 is pushed into the distillation pool 2002.
(3) Primary distillation: heating the distillation pool 2002 to 100 ℃ through the heating wire, enabling volatile phenol and water vapor to pass through the condensing tube 2009 to form distillate, enabling the distillate to enter the colorimetric tube 4002 through the condensing tube 2009, stopping heating when about 80% of the water sample is evaporated (calculated by the whole heating flow time), enabling the distillation pool to dissipate heat, until the temperature of the distillation pool is reduced to 75 ℃, and enabling the heat dissipation fan 2008 to accelerate heat dissipation of the distillation pool.
(4) And (3) secondary water inlet sample: the zero mark valve on the eight-in-one valve 1010 is opened, the peristaltic pump 1009 rotates forward, the zero mark is metered by 2ml through the metering module 1008, the three-way valve 5001 is opened, the peristaltic pump 1009 rotates reversely, and the zero mark is pushed into the distillation pool 2002.
And (3) secondary distillation constant volume: the distillation process is continued after the distillation pool 2002 is heated to 100 ℃ until the distillate is collected and reaches the top end position of the main body of the cuvette (see fig. 3), in the process of receiving the distillate, the measuring lamp 4003 is turned on, light emitted by the measuring lamp is injected into the cuvette through the optical fiber collimator 4005 and is led to the receiving sensor 4006 by the light guide column 4007, at the beginning, most of light is lost due to reflection and refraction of the liquid level (see fig. 2), the receiving sensor 4006 receives a certain amount of light intensity, and when the distillate reaches the top end position of the cuvette main body, the light intensity value of the receiving sensor 4006 is suddenly changed, so that the metering work of the distillate is completed, and the liquid in the cuvette is 10ml at the moment. Cooling fan 2008 was turned on and the distillation pool temperature was reduced to 40 ℃.
(5) Color development flow: the reagent 2 valve in the eight-connected valve 1010 is opened, 1ml of reagent 2 (buffer) is metered by the metering module 1008, the three-way valve 5001 is closed, the single-way valve 5002 is opened to push the buffer into the colorimetric tube 4002, the reagent 3 valve in the eight-connected valve 1010 is opened, the metering module 1008 meters 1ml of reagent 3 (color reagent) and pushes the reagent into the colorimetric tube 4002 through the three-way valve 5001 and the single-way valve 5002, and the peristaltic pump 1009 continuously reversely rotates, uniformly blows and then stands for 2min.
(6) Colorimetric procedure: the measurement lamp 4003 is turned on, and the reference sensor 4004 performs real-time measurement, and the online analyzer software calculates the concentration of volatile phenol in the water sample by receiving the measurement data.
Cleaning and evacuating: the one-way valve 5002 is opened, the three-way valve 5001 is closed, the waste liquid in the colorimetric tube 4002 is discharged from the waste liquid valve in the eight-conjoined valve 1010 after passing through the metering module 1008, and the distilled waste liquid in the distillation pool 2002 is discharged by opening the three-way valve 5001 and closing the one-way valve 5002. Then, the three-way valve 5001 is closed, the zero standard valve in the single-way valve 5002 and the eight-connected valve 1010 is opened, and the 15ml zero standard valve is filled in the distillation pool 2002, the condensation pipe 2009, the liquid inlet pipe and the colorimetric tube 4002 for cleaning, and then the emptying flow is carried out.
It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).
Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The online water quality analyzer is characterized by comprising an analyzer body (1001) and a colorimetric metering module, wherein the colorimetric metering module comprises a colorimetric bracket (4001), a colorimetric tube (4002), a measuring lamp (4003), an optical fiber collimating mirror (4005), a receiving sensor (4006) and a light guide column (4007);
the colorimetric bracket comprises a bracket main body (4001 a) and a bracket auxiliary body (4001 b), wherein the bracket main body is connected with the bracket auxiliary body, and a first included angle is formed between the bracket main body and the bracket auxiliary body; the color comparison tube comprises a color comparison tube main body (4002 a) and a color comparison tube auxiliary body (4002 b), wherein the color comparison tube main body (4002 a) is connected with the color comparison tube auxiliary body, the color comparison tube main body is fixed on a bracket main body, and the color comparison tube auxiliary body is fixed on the bracket auxiliary body, so that a second included angle is formed between the color comparison tube main body and the color comparison tube auxiliary body;
the measuring lamp is arranged at the top end of the bracket main body, and the optical fiber collimating mirror is arranged between the measuring lamp and the colorimetric tube main body;
the receiving sensor is arranged at the bottom end of the bracket main body, and the light guide column is arranged between the receiving sensor and the colorimetric tube main body;
the top of the colorimetric tube auxiliary body is provided with a liquid inlet, the bottom of the colorimetric tube main body is provided with a liquid outlet, and a third included angle is formed between the liquid outlet and the colorimetric tube main body;
the colorimetric metering module is arranged in the analyzer body, a metering module (1008), a valve assembly (1011) and a distillation condensing module (1006) are further arranged in the analyzer body, and the metering module, the valve assembly, the colorimetric metering module and the distillation condensing module are sequentially connected;
the distillation and condensation module comprises a distillation bracket (2001), a distillation pool (2002), a condensation pipe (2009) and a condensation bracket (2010);
the distillation pool is fixed in the distillation bracket, the condensing pipe is fixed in the condensing bracket, the condensing bracket is arranged on the distillation bracket, one end of the condensing pipe extends into the distillation pool, and the other end extends out of the condensing bracket;
the bottom end of the distillation pool is provided with a liquid inlet hole, the top end of the liquid inlet hole is provided with flanges (3001) extending inwards at two sides, the flanges are provided with glass beads (2013), and the diameter of each glass bead is larger than the distance between the two flanges and smaller than the length of each flange;
the distillation pool is characterized in that a heating wire is wound on the outer wall of the distillation pool, the top end of the heating wire is lower than the bottom end of the condensing tube, and the bottom end of the heating wire extends to the outer wall of the liquid inlet hole.
2. The on-line water quality analyzer of claim 1, wherein the cuvette body is disposed obliquely in use.
3. The on-line analyzer of water quality according to claim 2, wherein,
the third included angle is more than 116 degrees and less than 148 degrees;
the first included angle is larger than 116 degrees and smaller than 148 degrees;
the second included angle is larger than or equal to the first included angle;
the inclination angle of the color comparison tube main body relative to the horizontal plane is larger than 26 degrees and smaller than 48 degrees.
4. The on-line analyzer of claim 2, wherein the third included angle is a right angle;
the liquid inlet port is arranged perpendicular to the auxiliary body of the colorimetric tube;
the first included angle is 45 degrees;
the second included angle is equal to the first included angle;
the inclination angle of the cuvette main body relative to the horizontal plane is 45 degrees.
5. The online water quality analyzer according to any one of claims 1 to 4, wherein an overflow port is provided at the top end of the cuvette secondary body;
and a reference sensor (4004) is arranged on the side surface of the bracket main body corresponding to the measuring lamp.
6. The online water quality analyzer according to claim 1, wherein a cooling fan (211) is provided at a position on the condensation branch corresponding to the condensation duct.
7. The online water quality analyzer according to claim 1, wherein a fixing hole is formed in the top surface of the distillation support, an upper pressing block (2004), a butterfly reed (2005) and a compression nut (2006) are sequentially arranged in the fixing hole from bottom to top, the compression nut is in threaded connection with the inner wall of the fixing hole, and the bottom end of the upper pressing block is abutted to the top end of the distillation pool;
the condensing pipe penetrates through the nut, the dish-shaped elastic sheet and the upper pressing block to be positioned in the distillation pool, and a sealing ring (2007) is arranged between the upper pressing block and the condensing pipe;
a lower pressing block (2003) is arranged at the bottom end of the distillation pool, the top end of the lower pressing block is propped against the distillation pool, and the other end of the lower pressing block is propped against the distillation bracket; the lower pressing block is provided with a through hole communicated with the liquid inlet;
and a cooling fan (2008) is arranged on one side of the distillation pool on the support.
8. The online water quality analyzer of claim 7, wherein the valve assembly comprises a three-way valve (5001) and a single-way valve (5002), one end of the single-way valve is communicated with the liquid outlet port, the other single-way valve is communicated with one port of the three-way valve, the other port of the three-way valve is communicated with the through hole, the other port of the three-way valve is communicated with the inside of a metering module, the metering module is connected with an eight-connection valve (1010), and the top of the metering module is connected with a peristaltic pump (1009).
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| CN116106300B true CN116106300B (en) | 2023-11-14 |
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| CN216560257U (en) * | 2021-12-14 | 2022-05-17 | 杭州绿洁环境科技股份有限公司 | Online volatile phenol water quality analyzer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203299130U (en) * | 2013-06-17 | 2013-11-20 | 孙卫国 | High-temperature digestion colorimetric device with adjustable detection positions |
| CN204389508U (en) * | 2014-12-31 | 2015-06-10 | 聚光科技(杭州)股份有限公司 | A kind of water quality on-line checkingi analytical equipment |
| CN207689252U (en) * | 2018-06-01 | 2018-08-03 | 无锡点创科技有限公司 | A kind of device of COD ultrasounds resolution |
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| CN116106300A (en) | 2023-05-12 |
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